first commit

plugins/simplesaml/lib/vendor/symfony/config/Builder/ClassBuilder.php

@@ -0,0 +1,171 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Builder;
+
+/**
+ * Build PHP classes to generate config.
+ *
+ * @internal
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class ClassBuilder
+{
+    private string $namespace;
+    private string $name;
+
+    /** @var Property[] */
+    private array $properties = [];
+
+    /** @var Method[] */
+    private array $methods = [];
+    private array $require = [];
+    private array $use = [];
+    private array $implements = [];
+    private bool $allowExtraKeys = false;
+
+    public function __construct(string $namespace, string $name)
+    {
+        $this->namespace = $namespace;
+        $this->name = ucfirst($this->camelCase($name)).'Config';
+    }
+
+    public function getDirectory(): string
+    {
+        return str_replace('\\', \DIRECTORY_SEPARATOR, $this->namespace);
+    }
+
+    public function getFilename(): string
+    {
+        return $this->name.'.php';
+    }
+
+    public function build(): string
+    {
+        $rootPath = explode(\DIRECTORY_SEPARATOR, $this->getDirectory());
+        $require = '';
+        foreach ($this->require as $class) {
+            // figure out relative path.
+            $path = explode(\DIRECTORY_SEPARATOR, $class->getDirectory());
+            $path[] = $class->getFilename();
+            foreach ($rootPath as $key => $value) {
+                if ($path[$key] !== $value) {
+                    break;
+                }
+                unset($path[$key]);
+            }
+            $require .= sprintf('require_once __DIR__.\DIRECTORY_SEPARATOR.\'%s\';', implode('\'.\DIRECTORY_SEPARATOR.\'', $path))."\n";
+        }
+        $use = $require ? "\n" : '';
+        foreach (array_keys($this->use) as $statement) {
+            $use .= sprintf('use %s;', $statement)."\n";
+        }
+
+        $implements = [] === $this->implements ? '' : 'implements '.implode(', ', $this->implements);
+        $body = '';
+        foreach ($this->properties as $property) {
+            $body .= '    '.$property->getContent()."\n";
+        }
+        foreach ($this->methods as $method) {
+            $lines = explode("\n", $method->getContent());
+            foreach ($lines as $line) {
+                $body .= ($line ? '    '.$line : '')."\n";
+            }
+        }
+
+        $content = strtr('<?php
+
+namespace NAMESPACE;
+
+REQUIREUSE
+/**
+ * This class is automatically generated to help in creating a config.
+ */
+class CLASS IMPLEMENTS
+{
+BODY
+}
+', ['NAMESPACE' => $this->namespace, 'REQUIRE' => $require, 'USE' => $use, 'CLASS' => $this->getName(), 'IMPLEMENTS' => $implements, 'BODY' => $body]);
+
+        return $content;
+    }
+
+    public function addRequire(self $class): void
+    {
+        $this->require[] = $class;
+    }
+
+    public function addUse(string $class): void
+    {
+        $this->use[$class] = true;
+    }
+
+    public function addImplements(string $interface): void
+    {
+        $this->implements[] = '\\'.ltrim($interface, '\\');
+    }
+
+    public function addMethod(string $name, string $body, array $params = []): void
+    {
+        $this->methods[] = new Method(strtr($body, ['NAME' => $this->camelCase($name)] + $params));
+    }
+
+    public function addProperty(string $name, ?string $classType = null, ?string $defaultValue = null): Property
+    {
+        $property = new Property($name, '_' !== $name[0] ? $this->camelCase($name) : $name);
+        if (null !== $classType) {
+            $property->setType($classType);
+        }
+        $this->properties[] = $property;
+        $defaultValue = null !== $defaultValue ? sprintf(' = %s', $defaultValue) : '';
+        $property->setContent(sprintf('private $%s%s;', $property->getName(), $defaultValue));
+
+        return $property;
+    }
+
+    public function getProperties(): array
+    {
+        return $this->properties;
+    }
+
+    private function camelCase(string $input): string
+    {
+        $output = lcfirst(str_replace(' ', '', ucwords(str_replace('_', ' ', $input))));
+
+        return preg_replace('#\W#', '', $output);
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function getNamespace(): string
+    {
+        return $this->namespace;
+    }
+
+    public function getFqcn(): string
+    {
+        return '\\'.$this->namespace.'\\'.$this->name;
+    }
+
+    public function setAllowExtraKeys(bool $allowExtraKeys): void
+    {
+        $this->allowExtraKeys = $allowExtraKeys;
+    }
+
+    public function shouldAllowExtraKeys(): bool
+    {
+        return $this->allowExtraKeys;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Builder/ConfigBuilderGenerator.php

@@ -0,0 +1,600 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Builder;
+
+use Symfony\Component\Config\Definition\ArrayNode;
+use Symfony\Component\Config\Definition\BaseNode;
+use Symfony\Component\Config\Definition\BooleanNode;
+use Symfony\Component\Config\Definition\Builder\ExprBuilder;
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+use Symfony\Component\Config\Definition\EnumNode;
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+use Symfony\Component\Config\Definition\FloatNode;
+use Symfony\Component\Config\Definition\IntegerNode;
+use Symfony\Component\Config\Definition\NodeInterface;
+use Symfony\Component\Config\Definition\PrototypedArrayNode;
+use Symfony\Component\Config\Definition\ScalarNode;
+use Symfony\Component\Config\Definition\VariableNode;
+use Symfony\Component\Config\Loader\ParamConfigurator;
+
+/**
+ * Generate ConfigBuilders to help create valid config.
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class ConfigBuilderGenerator implements ConfigBuilderGeneratorInterface
+{
+    /**
+     * @var ClassBuilder[]
+     */
+    private array $classes = [];
+    private string $outputDir;
+
+    public function __construct(string $outputDir)
+    {
+        $this->outputDir = $outputDir;
+    }
+
+    /**
+     * @return \Closure that will return the root config class
+     */
+    public function build(ConfigurationInterface $configuration): \Closure
+    {
+        $this->classes = [];
+
+        $rootNode = $configuration->getConfigTreeBuilder()->buildTree();
+        $rootClass = new ClassBuilder('Symfony\\Config', $rootNode->getName());
+
+        $path = $this->getFullPath($rootClass);
+        if (!is_file($path)) {
+            // Generate the class if the file not exists
+            $this->classes[] = $rootClass;
+            $this->buildNode($rootNode, $rootClass, $this->getSubNamespace($rootClass));
+            $rootClass->addImplements(ConfigBuilderInterface::class);
+            $rootClass->addMethod('getExtensionAlias', '
+public function NAME(): string
+{
+    return \'ALIAS\';
+}', ['ALIAS' => $rootNode->getPath()]);
+
+            $this->writeClasses();
+        }
+
+        return function () use ($path, $rootClass) {
+            require_once $path;
+            $className = $rootClass->getFqcn();
+
+            return new $className();
+        };
+    }
+
+    private function getFullPath(ClassBuilder $class): string
+    {
+        $directory = $this->outputDir.\DIRECTORY_SEPARATOR.$class->getDirectory();
+        if (!is_dir($directory)) {
+            @mkdir($directory, 0777, true);
+        }
+
+        return $directory.\DIRECTORY_SEPARATOR.$class->getFilename();
+    }
+
+    private function writeClasses(): void
+    {
+        foreach ($this->classes as $class) {
+            $this->buildConstructor($class);
+            $this->buildToArray($class);
+            if ($class->getProperties()) {
+                $class->addProperty('_usedProperties', null, '[]');
+            }
+            $this->buildSetExtraKey($class);
+
+            file_put_contents($this->getFullPath($class), $class->build());
+        }
+
+        $this->classes = [];
+    }
+
+    private function buildNode(NodeInterface $node, ClassBuilder $class, string $namespace): void
+    {
+        if (!$node instanceof ArrayNode) {
+            throw new \LogicException('The node was expected to be an ArrayNode. This Configuration includes an edge case not supported yet.');
+        }
+
+        foreach ($node->getChildren() as $child) {
+            match (true) {
+                $child instanceof ScalarNode => $this->handleScalarNode($child, $class),
+                $child instanceof PrototypedArrayNode => $this->handlePrototypedArrayNode($child, $class, $namespace),
+                $child instanceof VariableNode => $this->handleVariableNode($child, $class),
+                $child instanceof ArrayNode => $this->handleArrayNode($child, $class, $namespace),
+                default => throw new \RuntimeException(sprintf('Unknown node "%s".', $child::class)),
+            };
+        }
+    }
+
+    private function handleArrayNode(ArrayNode $node, ClassBuilder $class, string $namespace): void
+    {
+        $childClass = new ClassBuilder($namespace, $node->getName());
+        $childClass->setAllowExtraKeys($node->shouldIgnoreExtraKeys());
+        $class->addRequire($childClass);
+        $this->classes[] = $childClass;
+
+        $hasNormalizationClosures = $this->hasNormalizationClosures($node);
+        $comment = $this->getComment($node);
+        if ($hasNormalizationClosures) {
+            $comment = sprintf(" * @template TValue\n * @param TValue \$value\n%s", $comment);
+            $comment .= sprintf(' * @return %s|$this'."\n", $childClass->getFqcn());
+            $comment .= sprintf(' * @psalm-return (TValue is array ? %s : static)'."\n ", $childClass->getFqcn());
+        }
+        if ('' !== $comment) {
+            $comment = "/**\n$comment*/\n";
+        }
+
+        $property = $class->addProperty(
+            $node->getName(),
+            $this->getType($childClass->getFqcn(), $hasNormalizationClosures)
+        );
+        $nodeTypes = $this->getParameterTypes($node);
+        $body = $hasNormalizationClosures ? '
+COMMENTpublic function NAME(PARAM_TYPE $value = []): CLASS|static
+{
+    if (!\is_array($value)) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY = $value;
+
+        return $this;
+    }
+
+    if (!$this->PROPERTY instanceof CLASS) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY = new CLASS($value);
+    } elseif (0 < \func_num_args()) {
+        throw new InvalidConfigurationException(\'The node created by "NAME()" has already been initialized. You cannot pass values the second time you call NAME().\');
+    }
+
+    return $this->PROPERTY;
+}' : '
+COMMENTpublic function NAME(array $value = []): CLASS
+{
+    if (null === $this->PROPERTY) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY = new CLASS($value);
+    } elseif (0 < \func_num_args()) {
+        throw new InvalidConfigurationException(\'The node created by "NAME()" has already been initialized. You cannot pass values the second time you call NAME().\');
+    }
+
+    return $this->PROPERTY;
+}';
+        $class->addUse(InvalidConfigurationException::class);
+        $class->addMethod($node->getName(), $body, [
+            'COMMENT' => $comment,
+            'PROPERTY' => $property->getName(),
+            'CLASS' => $childClass->getFqcn(),
+            'PARAM_TYPE' => \in_array('mixed', $nodeTypes, true) ? 'mixed' : implode('|', $nodeTypes),
+        ]);
+
+        $this->buildNode($node, $childClass, $this->getSubNamespace($childClass));
+    }
+
+    private function handleVariableNode(VariableNode $node, ClassBuilder $class): void
+    {
+        $comment = $this->getComment($node);
+        $property = $class->addProperty($node->getName());
+        $class->addUse(ParamConfigurator::class);
+
+        $body = '
+/**
+COMMENT *
+ * @return $this
+ */
+public function NAME(mixed $valueDEFAULT): static
+{
+    $this->_usedProperties[\'PROPERTY\'] = true;
+    $this->PROPERTY = $value;
+
+    return $this;
+}';
+        $class->addMethod($node->getName(), $body, [
+            'PROPERTY' => $property->getName(),
+            'COMMENT' => $comment,
+            'DEFAULT' => $node->hasDefaultValue() ? ' = '.var_export($node->getDefaultValue(), true) : '',
+        ]);
+    }
+
+    private function handlePrototypedArrayNode(PrototypedArrayNode $node, ClassBuilder $class, string $namespace): void
+    {
+        $name = $this->getSingularName($node);
+        $prototype = $node->getPrototype();
+        $methodName = $name;
+        $hasNormalizationClosures = $this->hasNormalizationClosures($node) || $this->hasNormalizationClosures($prototype);
+
+        $nodeParameterTypes = $this->getParameterTypes($node);
+        $prototypeParameterTypes = $this->getParameterTypes($prototype);
+        if (!$prototype instanceof ArrayNode || ($prototype instanceof PrototypedArrayNode && $prototype->getPrototype() instanceof ScalarNode)) {
+            $class->addUse(ParamConfigurator::class);
+            $property = $class->addProperty($node->getName());
+            if (null === $key = $node->getKeyAttribute()) {
+                // This is an array of values; don't use singular name
+                $nodeTypesWithoutArray = array_filter($nodeParameterTypes, static fn ($type) => 'array' !== $type);
+                $body = '
+/**
+ * @param ParamConfigurator|list<ParamConfigurator|PROTOTYPE_TYPE>EXTRA_TYPE $value
+ *
+ * @return $this
+ */
+public function NAME(PARAM_TYPE $value): static
+{
+    $this->_usedProperties[\'PROPERTY\'] = true;
+    $this->PROPERTY = $value;
+
+    return $this;
+}';
+
+                $class->addMethod($node->getName(), $body, [
+                    'PROPERTY' => $property->getName(),
+                    'PROTOTYPE_TYPE' => implode('|', $prototypeParameterTypes),
+                    'EXTRA_TYPE' => $nodeTypesWithoutArray ? '|'.implode('|', $nodeTypesWithoutArray) : '',
+                    'PARAM_TYPE' => \in_array('mixed', $nodeParameterTypes, true) ? 'mixed' : 'ParamConfigurator|'.implode('|', $nodeParameterTypes),
+                ]);
+            } else {
+                $body = '
+/**
+ * @return $this
+ */
+public function NAME(string $VAR, TYPE $VALUE): static
+{
+    $this->_usedProperties[\'PROPERTY\'] = true;
+    $this->PROPERTY[$VAR] = $VALUE;
+
+    return $this;
+}';
+
+                $class->addMethod($methodName, $body, [
+                    'PROPERTY' => $property->getName(),
+                    'TYPE' => \in_array('mixed', $prototypeParameterTypes, true) ? 'mixed' : 'ParamConfigurator|'.implode('|', $prototypeParameterTypes),
+                    'VAR' => '' === $key ? 'key' : $key,
+                    'VALUE' => 'value' === $key ? 'data' : 'value',
+                ]);
+            }
+
+            return;
+        }
+
+        $childClass = new ClassBuilder($namespace, $name);
+        if ($prototype instanceof ArrayNode) {
+            $childClass->setAllowExtraKeys($prototype->shouldIgnoreExtraKeys());
+        }
+        $class->addRequire($childClass);
+        $this->classes[] = $childClass;
+
+        $property = $class->addProperty(
+            $node->getName(),
+            $this->getType($childClass->getFqcn().'[]', $hasNormalizationClosures)
+        );
+
+        $comment = $this->getComment($node);
+        if ($hasNormalizationClosures) {
+            $comment = sprintf(" * @template TValue\n * @param TValue \$value\n%s", $comment);
+            $comment .= sprintf(' * @return %s|$this'."\n", $childClass->getFqcn());
+            $comment .= sprintf(' * @psalm-return (TValue is array ? %s : static)'."\n ", $childClass->getFqcn());
+        }
+        if ('' !== $comment) {
+            $comment = "/**\n$comment*/\n";
+        }
+
+        if (null === $key = $node->getKeyAttribute()) {
+            $body = $hasNormalizationClosures ? '
+COMMENTpublic function NAME(PARAM_TYPE $value = []): CLASS|static
+{
+    $this->_usedProperties[\'PROPERTY\'] = true;
+    if (!\is_array($value)) {
+        $this->PROPERTY[] = $value;
+
+        return $this;
+    }
+
+    return $this->PROPERTY[] = new CLASS($value);
+}' : '
+COMMENTpublic function NAME(array $value = []): CLASS
+{
+    $this->_usedProperties[\'PROPERTY\'] = true;
+
+    return $this->PROPERTY[] = new CLASS($value);
+}';
+            $class->addMethod($methodName, $body, [
+                'COMMENT' => $comment,
+                'PROPERTY' => $property->getName(),
+                'CLASS' => $childClass->getFqcn(),
+                'PARAM_TYPE' => \in_array('mixed', $nodeParameterTypes, true) ? 'mixed' : implode('|', $nodeParameterTypes),
+            ]);
+        } else {
+            $body = $hasNormalizationClosures ? '
+COMMENTpublic function NAME(string $VAR, PARAM_TYPE $VALUE = []): CLASS|static
+{
+    if (!\is_array($VALUE)) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY[$VAR] = $VALUE;
+
+        return $this;
+    }
+
+    if (!isset($this->PROPERTY[$VAR]) || !$this->PROPERTY[$VAR] instanceof CLASS) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY[$VAR] = new CLASS($VALUE);
+    } elseif (1 < \func_num_args()) {
+        throw new InvalidConfigurationException(\'The node created by "NAME()" has already been initialized. You cannot pass values the second time you call NAME().\');
+    }
+
+    return $this->PROPERTY[$VAR];
+}' : '
+COMMENTpublic function NAME(string $VAR, array $VALUE = []): CLASS
+{
+    if (!isset($this->PROPERTY[$VAR])) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY[$VAR] = new CLASS($VALUE);
+    } elseif (1 < \func_num_args()) {
+        throw new InvalidConfigurationException(\'The node created by "NAME()" has already been initialized. You cannot pass values the second time you call NAME().\');
+    }
+
+    return $this->PROPERTY[$VAR];
+}';
+            $class->addUse(InvalidConfigurationException::class);
+            $class->addMethod($methodName, str_replace('$value', '$VAR', $body), [
+                'COMMENT' => $comment, 'PROPERTY' => $property->getName(),
+                'CLASS' => $childClass->getFqcn(),
+                'VAR' => '' === $key ? 'key' : $key,
+                'VALUE' => 'value' === $key ? 'data' : 'value',
+                'PARAM_TYPE' => \in_array('mixed', $prototypeParameterTypes, true) ? 'mixed' : implode('|', $prototypeParameterTypes),
+            ]);
+        }
+
+        $this->buildNode($prototype, $childClass, $namespace.'\\'.$childClass->getName());
+    }
+
+    private function handleScalarNode(ScalarNode $node, ClassBuilder $class): void
+    {
+        $comment = $this->getComment($node);
+        $property = $class->addProperty($node->getName());
+        $class->addUse(ParamConfigurator::class);
+
+        $body = '
+/**
+COMMENT * @return $this
+ */
+public function NAME($value): static
+{
+    $this->_usedProperties[\'PROPERTY\'] = true;
+    $this->PROPERTY = $value;
+
+    return $this;
+}';
+
+        $class->addMethod($node->getName(), $body, ['PROPERTY' => $property->getName(), 'COMMENT' => $comment]);
+    }
+
+    private function getParameterTypes(NodeInterface $node): array
+    {
+        $paramTypes = [];
+        if ($node instanceof BaseNode) {
+            $types = $node->getNormalizedTypes();
+            if (\in_array(ExprBuilder::TYPE_ANY, $types, true)) {
+                $paramTypes[] = 'mixed';
+            }
+            if (\in_array(ExprBuilder::TYPE_STRING, $types, true)) {
+                $paramTypes[] = 'string';
+            }
+        }
+        if ($node instanceof BooleanNode) {
+            $paramTypes[] = 'bool';
+        } elseif ($node instanceof IntegerNode) {
+            $paramTypes[] = 'int';
+        } elseif ($node instanceof FloatNode) {
+            $paramTypes[] = 'float';
+        } elseif ($node instanceof EnumNode) {
+            $paramTypes[] = 'mixed';
+        } elseif ($node instanceof ArrayNode) {
+            $paramTypes[] = 'array';
+        } elseif ($node instanceof VariableNode) {
+            $paramTypes[] = 'mixed';
+        }
+
+        return array_unique($paramTypes);
+    }
+
+    private function getComment(BaseNode $node): string
+    {
+        $comment = '';
+        if ('' !== $info = (string) $node->getInfo()) {
+            $comment .= ' * '.$info."\n";
+        }
+
+        if (!$node instanceof ArrayNode) {
+            foreach ((array) ($node->getExample() ?? []) as $example) {
+                $comment .= ' * @example '.$example."\n";
+            }
+
+            if ('' !== $default = $node->getDefaultValue()) {
+                $comment .= ' * @default '.(null === $default ? 'null' : var_export($default, true))."\n";
+            }
+
+            if ($node instanceof EnumNode) {
+                $comment .= sprintf(' * @param ParamConfigurator|%s $value', implode('|', array_unique(array_map(fn ($a) => !$a instanceof \UnitEnum ? var_export($a, true) : '\\'.ltrim(var_export($a, true), '\\'), $node->getValues()))))."\n";
+            } else {
+                $parameterTypes = $this->getParameterTypes($node);
+                $comment .= ' * @param ParamConfigurator|'.implode('|', $parameterTypes).' $value'."\n";
+            }
+        } else {
+            foreach ((array) ($node->getExample() ?? []) as $example) {
+                $comment .= ' * @example '.json_encode($example)."\n";
+            }
+
+            if ($node->hasDefaultValue() && [] != $default = $node->getDefaultValue()) {
+                $comment .= ' * @default '.json_encode($default)."\n";
+            }
+        }
+
+        if ($node->isDeprecated()) {
+            $comment .= ' * @deprecated '.$node->getDeprecation($node->getName(), $node->getParent()->getName())['message']."\n";
+        }
+
+        return $comment;
+    }
+
+    /**
+     * Pick a good singular name.
+     */
+    private function getSingularName(PrototypedArrayNode $node): string
+    {
+        $name = $node->getName();
+        if (!str_ends_with($name, 's')) {
+            return $name;
+        }
+
+        $parent = $node->getParent();
+        $mappings = $parent instanceof ArrayNode ? $parent->getXmlRemappings() : [];
+        foreach ($mappings as $map) {
+            if ($map[1] === $name) {
+                $name = $map[0];
+                break;
+            }
+        }
+
+        return $name;
+    }
+
+    private function buildToArray(ClassBuilder $class): void
+    {
+        $body = '$output = [];';
+        foreach ($class->getProperties() as $p) {
+            $code = '$this->PROPERTY';
+            if (null !== $p->getType()) {
+                if ($p->isArray()) {
+                    $code = $p->areScalarsAllowed()
+                        ? 'array_map(fn ($v) => $v instanceof CLASS ? $v->toArray() : $v, $this->PROPERTY)'
+                        : 'array_map(fn ($v) => $v->toArray(), $this->PROPERTY)'
+                    ;
+                } else {
+                    $code = $p->areScalarsAllowed()
+                        ? '$this->PROPERTY instanceof CLASS ? $this->PROPERTY->toArray() : $this->PROPERTY'
+                        : '$this->PROPERTY->toArray()'
+                    ;
+                }
+            }
+
+            $body .= strtr('
+    if (isset($this->_usedProperties[\'PROPERTY\'])) {
+        $output[\'ORG_NAME\'] = '.$code.';
+    }', ['PROPERTY' => $p->getName(), 'ORG_NAME' => $p->getOriginalName(), 'CLASS' => $p->getType()]);
+        }
+
+        $extraKeys = $class->shouldAllowExtraKeys() ? ' + $this->_extraKeys' : '';
+
+        $class->addMethod('toArray', '
+public function NAME(): array
+{
+    '.$body.'
+
+    return $output'.$extraKeys.';
+}');
+    }
+
+    private function buildConstructor(ClassBuilder $class): void
+    {
+        $body = '';
+        foreach ($class->getProperties() as $p) {
+            $code = '$value[\'ORG_NAME\']';
+            if (null !== $p->getType()) {
+                if ($p->isArray()) {
+                    $code = $p->areScalarsAllowed()
+                        ? 'array_map(fn ($v) => \is_array($v) ? new '.$p->getType().'($v) : $v, $value[\'ORG_NAME\'])'
+                        : 'array_map(fn ($v) => new '.$p->getType().'($v), $value[\'ORG_NAME\'])'
+                    ;
+                } else {
+                    $code = $p->areScalarsAllowed()
+                        ? '\is_array($value[\'ORG_NAME\']) ? new '.$p->getType().'($value[\'ORG_NAME\']) : $value[\'ORG_NAME\']'
+                        : 'new '.$p->getType().'($value[\'ORG_NAME\'])'
+                    ;
+                }
+            }
+
+            $body .= strtr('
+    if (array_key_exists(\'ORG_NAME\', $value)) {
+        $this->_usedProperties[\'PROPERTY\'] = true;
+        $this->PROPERTY = '.$code.';
+        unset($value[\'ORG_NAME\']);
+    }
+', ['PROPERTY' => $p->getName(), 'ORG_NAME' => $p->getOriginalName()]);
+        }
+
+        if ($class->shouldAllowExtraKeys()) {
+            $body .= '
+    $this->_extraKeys = $value;
+';
+        } else {
+            $body .= '
+    if ([] !== $value) {
+        throw new InvalidConfigurationException(sprintf(\'The following keys are not supported by "%s": \', __CLASS__).implode(\', \', array_keys($value)));
+    }';
+
+            $class->addUse(InvalidConfigurationException::class);
+        }
+
+        $class->addMethod('__construct', '
+public function __construct(array $value = [])
+{'.$body.'
+}');
+    }
+
+    private function buildSetExtraKey(ClassBuilder $class): void
+    {
+        if (!$class->shouldAllowExtraKeys()) {
+            return;
+        }
+
+        $class->addUse(ParamConfigurator::class);
+
+        $class->addProperty('_extraKeys');
+
+        $class->addMethod('set', '
+/**
+ * @param ParamConfigurator|mixed $value
+ *
+ * @return $this
+ */
+public function NAME(string $key, mixed $value): static
+{
+    $this->_extraKeys[$key] = $value;
+
+    return $this;
+}');
+    }
+
+    private function getSubNamespace(ClassBuilder $rootClass): string
+    {
+        return sprintf('%s\\%s', $rootClass->getNamespace(), substr($rootClass->getName(), 0, -6));
+    }
+
+    private function hasNormalizationClosures(NodeInterface $node): bool
+    {
+        try {
+            $r = new \ReflectionProperty($node, 'normalizationClosures');
+        } catch (\ReflectionException) {
+            return false;
+        }
+
+        return [] !== $r->getValue($node);
+    }
+
+    private function getType(string $classType, bool $hasNormalizationClosures): string
+    {
+        return $classType.($hasNormalizationClosures ? '|scalar' : '');
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Builder/ConfigBuilderGeneratorInterface.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Builder;
+
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+
+/**
+ * Generates ConfigBuilders to help create valid config.
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+interface ConfigBuilderGeneratorInterface
+{
+    /**
+     * @return \Closure that will return the root config class
+     */
+    public function build(ConfigurationInterface $configuration): \Closure;
+}

plugins/simplesaml/lib/vendor/symfony/config/Builder/ConfigBuilderInterface.php

@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Builder;
+
+/**
+ * A ConfigBuilder provides helper methods to build a large complex array.
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+interface ConfigBuilderInterface
+{
+    /**
+     * Gets all configuration represented as an array.
+     */
+    public function toArray(): array;
+
+    /**
+     * Gets the alias for the extension which config we are building.
+     */
+    public function getExtensionAlias(): string;
+}

plugins/simplesaml/lib/vendor/symfony/config/Builder/Method.php

@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Builder;
+
+/**
+ * Represents a method when building classes.
+ *
+ * @internal
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class Method
+{
+    private string $content;
+
+    public function __construct(string $content)
+    {
+        $this->content = $content;
+    }
+
+    public function getContent(): string
+    {
+        return $this->content;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Builder/Property.php

@@ -0,0 +1,86 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Builder;
+
+/**
+ * Represents a property when building classes.
+ *
+ * @internal
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class Property
+{
+    private string $name;
+    private string $originalName;
+    private bool $array = false;
+    private bool $scalarsAllowed = false;
+    private ?string $type = null;
+    private ?string $content = null;
+
+    public function __construct(string $originalName, string $name)
+    {
+        $this->name = $name;
+        $this->originalName = $originalName;
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function getOriginalName(): string
+    {
+        return $this->originalName;
+    }
+
+    public function setType(string $type): void
+    {
+        $this->array = false;
+        $this->type = $type;
+
+        if (str_ends_with($type, '|scalar')) {
+            $this->scalarsAllowed = true;
+            $this->type = $type = substr($type, 0, -7);
+        }
+
+        if (str_ends_with($type, '[]')) {
+            $this->array = true;
+            $this->type = substr($type, 0, -2);
+        }
+    }
+
+    public function getType(): ?string
+    {
+        return $this->type;
+    }
+
+    public function getContent(): ?string
+    {
+        return $this->content;
+    }
+
+    public function setContent(string $content): void
+    {
+        $this->content = $content;
+    }
+
+    public function isArray(): bool
+    {
+        return $this->array;
+    }
+
+    public function areScalarsAllowed(): bool
+    {
+        return $this->scalarsAllowed;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/CHANGELOG.md

@@ -0,0 +1,153 @@
+CHANGELOG
+=========
+
+6.3
+---
+
+ * Allow enum values in `EnumNode`
+
+6.2
+---
+
+ * Deprecate calling `NodeBuilder::setParent()` without any arguments
+ * Add a more accurate typehint in generated PHP config
+
+6.1
+---
+
+ * Allow using environment variables in `EnumNode`
+ * Add Node's information in generated Config
+ * Add `DefinitionFileLoader` class to load a TreeBuilder definition from an external file
+ * Add `DefinitionConfigurator` helper
+
+6.0
+---
+
+ * Remove `BaseNode::getDeprecationMessage()`
+
+5.3.0
+-----
+
+ * Add support for generating `ConfigBuilder` for extensions
+
+5.1.0
+-----
+
+ * updated the signature of method `NodeDefinition::setDeprecated()` to `NodeDefinition::setDeprecation(string $package, string $version, string $message)`
+ * updated the signature of method `BaseNode::setDeprecated()` to `BaseNode::setDeprecation(string $package, string $version, string $message)`
+ * deprecated passing a null message to `BaseNode::setDeprecated()` to un-deprecate a node
+ * deprecated `BaseNode::getDeprecationMessage()`, use `BaseNode::getDeprecation()` instead
+
+5.0.0
+-----
+
+ * Dropped support for constructing a `TreeBuilder` without passing root node information.
+ * Removed the `root()` method in `TreeBuilder`, pass the root node information to the constructor instead
+ * Added method `getChildNodeDefinitions()` to ParentNodeDefinitionInterface
+ * Removed `FileLoaderLoadException`, use `LoaderLoadException` instead
+
+4.4.0
+-----
+
+ * added a way to exclude patterns of resources from being imported by the `import()` method
+
+4.3.0
+-----
+
+ * deprecated using environment variables with `cannotBeEmpty()` if the value is validated with `validate()`
+ * made `Resource\*` classes final and not implement `Serializable` anymore
+ * deprecated the `root()` method in `TreeBuilder`, pass the root node information to the constructor instead
+
+4.2.0
+-----
+
+ * deprecated constructing a `TreeBuilder` without passing root node information
+ * renamed `FileLoaderLoadException` to `LoaderLoadException`
+
+4.1.0
+-----
+
+ * added `setPathSeparator` method to `NodeBuilder` class
+ * added third `$pathSeparator` constructor argument to `BaseNode`
+ * the `Processor` class has been made final
+
+4.0.0
+-----
+
+ * removed `ConfigCachePass`
+
+3.4.0
+-----
+
+ * added `setDeprecated()` method to indicate a deprecated node
+ * added `XmlUtils::parse()` method to parse an XML string
+ * deprecated `ConfigCachePass`
+
+3.3.0
+-----
+
+ * added `ReflectionClassResource` class
+ * added second `$exists` constructor argument to `ClassExistenceResource`
+ * made `ClassExistenceResource` work with interfaces and traits
+ * added `ConfigCachePass` (originally in FrameworkBundle)
+ * added `castToArray()` helper to turn any config value into an array
+
+3.0.0
+-----
+
+ * removed `ReferenceDumper` class
+ * removed the `ResourceInterface::isFresh()` method
+ * removed `BCResourceInterfaceChecker` class
+ * removed `ResourceInterface::getResource()` method
+
+2.8.0
+-----
+
+The edge case of defining just one value for nodes of type Enum is now allowed:
+
+```php
+$rootNode
+    ->children()
+        ->enumNode('variable')
+            ->values(['value'])
+        ->end()
+    ->end()
+;
+```
+
+Before: `InvalidArgumentException` (variable must contain at least two
+distinct elements).
+After: the code will work as expected and it will restrict the values of the
+`variable` option to just `value`.
+
+ * deprecated the `ResourceInterface::isFresh()` method. If you implement custom resource types and they
+   can be validated that way, make them implement the new `SelfCheckingResourceInterface`.
+ * deprecated the getResource() method in ResourceInterface. You can still call this method
+   on concrete classes implementing the interface, but it does not make sense at the interface
+   level as you need to know about the particular type of resource at hand to understand the
+   semantics of the returned value.
+
+2.7.0
+-----
+
+ * added `ConfigCacheInterface`, `ConfigCacheFactoryInterface` and a basic `ConfigCacheFactory`
+   implementation to delegate creation of ConfigCache instances
+
+2.2.0
+-----
+
+ * added `ArrayNodeDefinition::canBeEnabled()` and `ArrayNodeDefinition::canBeDisabled()`
+   to ease configuration when some sections are respectively disabled / enabled
+   by default.
+ * added a `normalizeKeys()` method for array nodes (to avoid key normalization)
+ * added numerical type handling for config definitions
+ * added convenience methods for optional configuration sections to `ArrayNodeDefinition`
+ * added a utils class for XML manipulations
+
+2.1.0
+-----
+
+ * added a way to add documentation on configuration
+ * implemented `Serializable` on resources
+ * `LoaderResolverInterface` is now used instead of `LoaderResolver` for type
+   hinting

plugins/simplesaml/lib/vendor/symfony/config/ConfigCache.php

@@ -0,0 +1,60 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+use Symfony\Component\Config\Resource\SelfCheckingResourceChecker;
+
+/**
+ * ConfigCache caches arbitrary content in files on disk.
+ *
+ * When in debug mode, those metadata resources that implement
+ * \Symfony\Component\Config\Resource\SelfCheckingResourceInterface will
+ * be used to check cache freshness.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Matthias Pigulla <mp@webfactory.de>
+ */
+class ConfigCache extends ResourceCheckerConfigCache
+{
+    private bool $debug;
+
+    /**
+     * @param string $file  The absolute cache path
+     * @param bool   $debug Whether debugging is enabled or not
+     */
+    public function __construct(string $file, bool $debug)
+    {
+        $this->debug = $debug;
+
+        $checkers = [];
+        if (true === $this->debug) {
+            $checkers = [new SelfCheckingResourceChecker()];
+        }
+
+        parent::__construct($file, $checkers);
+    }
+
+    /**
+     * Checks if the cache is still fresh.
+     *
+     * This implementation always returns true when debug is off and the
+     * cache file exists.
+     */
+    public function isFresh(): bool
+    {
+        if (!$this->debug && is_file($this->getPath())) {
+            return true;
+        }
+
+        return parent::isFresh();
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/ConfigCacheFactory.php

@@ -0,0 +1,44 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+/**
+ * Basic implementation of ConfigCacheFactoryInterface that
+ * creates an instance of the default ConfigCache.
+ *
+ * This factory and/or cache <em>do not</em> support cache validation
+ * by means of ResourceChecker instances (that is, service-based).
+ *
+ * @author Matthias Pigulla <mp@webfactory.de>
+ */
+class ConfigCacheFactory implements ConfigCacheFactoryInterface
+{
+    private bool $debug;
+
+    /**
+     * @param bool $debug The debug flag to pass to ConfigCache
+     */
+    public function __construct(bool $debug)
+    {
+        $this->debug = $debug;
+    }
+
+    public function cache(string $file, callable $callback): ConfigCacheInterface
+    {
+        $cache = new ConfigCache($file, $this->debug);
+        if (!$cache->isFresh()) {
+            $callback($cache);
+        }
+
+        return $cache;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/ConfigCacheFactoryInterface.php

@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+/**
+ * Interface for a ConfigCache factory. This factory creates
+ * an instance of ConfigCacheInterface and initializes the
+ * cache if necessary.
+ *
+ * @author Matthias Pigulla <mp@webfactory.de>
+ */
+interface ConfigCacheFactoryInterface
+{
+    /**
+     * Creates a cache instance and (re-)initializes it if necessary.
+     *
+     * @param string   $file     The absolute cache file path
+     * @param callable $callable The callable to be executed when the cache needs to be filled (i. e. is not fresh). The cache will be passed as the only parameter to this callback
+     */
+    public function cache(string $file, callable $callable): ConfigCacheInterface;
+}

plugins/simplesaml/lib/vendor/symfony/config/ConfigCacheInterface.php

@@ -0,0 +1,47 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+use Symfony\Component\Config\Resource\ResourceInterface;
+
+/**
+ * Interface for ConfigCache.
+ *
+ * @author Matthias Pigulla <mp@webfactory.de>
+ */
+interface ConfigCacheInterface
+{
+    /**
+     * Gets the cache file path.
+     */
+    public function getPath(): string;
+
+    /**
+     * Checks if the cache is still fresh.
+     *
+     * This check should take the metadata passed to the write() method into consideration.
+     */
+    public function isFresh(): bool;
+
+    /**
+     * Writes the given content into the cache file. Metadata will be stored
+     * independently and can be used to check cache freshness at a later time.
+     *
+     * @param string                   $content  The content to write into the cache
+     * @param ResourceInterface[]|null $metadata An array of ResourceInterface instances
+     *
+     * @return void
+     *
+     * @throws \RuntimeException When the cache file cannot be written
+     */
+    public function write(string $content, ?array $metadata = null);
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/ArrayNode.php

@@ -0,0 +1,402 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+use Symfony\Component\Config\Definition\Exception\UnsetKeyException;
+
+/**
+ * Represents an Array node in the config tree.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ArrayNode extends BaseNode implements PrototypeNodeInterface
+{
+    protected $xmlRemappings = [];
+    protected $children = [];
+    protected $allowFalse = false;
+    protected $allowNewKeys = true;
+    protected $addIfNotSet = false;
+    protected $performDeepMerging = true;
+    protected $ignoreExtraKeys = false;
+    protected $removeExtraKeys = true;
+    protected $normalizeKeys = true;
+
+    /**
+     * @return void
+     */
+    public function setNormalizeKeys(bool $normalizeKeys)
+    {
+        $this->normalizeKeys = $normalizeKeys;
+    }
+
+    /**
+     * Namely, you mostly have foo_bar in YAML while you have foo-bar in XML.
+     * After running this method, all keys are normalized to foo_bar.
+     *
+     * If you have a mixed key like foo-bar_moo, it will not be altered.
+     * The key will also not be altered if the target key already exists.
+     */
+    protected function preNormalize(mixed $value): mixed
+    {
+        if (!$this->normalizeKeys || !\is_array($value)) {
+            return $value;
+        }
+
+        $normalized = [];
+
+        foreach ($value as $k => $v) {
+            if (str_contains($k, '-') && !str_contains($k, '_') && !\array_key_exists($normalizedKey = str_replace('-', '_', $k), $value)) {
+                $normalized[$normalizedKey] = $v;
+            } else {
+                $normalized[$k] = $v;
+            }
+        }
+
+        return $normalized;
+    }
+
+    /**
+     * Retrieves the children of this node.
+     *
+     * @return array<string, NodeInterface>
+     */
+    public function getChildren(): array
+    {
+        return $this->children;
+    }
+
+    /**
+     * Sets the xml remappings that should be performed.
+     *
+     * @param array $remappings An array of the form [[string, string]]
+     *
+     * @return void
+     */
+    public function setXmlRemappings(array $remappings)
+    {
+        $this->xmlRemappings = $remappings;
+    }
+
+    /**
+     * Gets the xml remappings that should be performed.
+     *
+     * @return array an array of the form [[string, string]]
+     */
+    public function getXmlRemappings(): array
+    {
+        return $this->xmlRemappings;
+    }
+
+    /**
+     * Sets whether to add default values for this array if it has not been
+     * defined in any of the configuration files.
+     *
+     * @return void
+     */
+    public function setAddIfNotSet(bool $boolean)
+    {
+        $this->addIfNotSet = $boolean;
+    }
+
+    /**
+     * Sets whether false is allowed as value indicating that the array should be unset.
+     *
+     * @return void
+     */
+    public function setAllowFalse(bool $allow)
+    {
+        $this->allowFalse = $allow;
+    }
+
+    /**
+     * Sets whether new keys can be defined in subsequent configurations.
+     *
+     * @return void
+     */
+    public function setAllowNewKeys(bool $allow)
+    {
+        $this->allowNewKeys = $allow;
+    }
+
+    /**
+     * Sets if deep merging should occur.
+     *
+     * @return void
+     */
+    public function setPerformDeepMerging(bool $boolean)
+    {
+        $this->performDeepMerging = $boolean;
+    }
+
+    /**
+     * Whether extra keys should just be ignored without an exception.
+     *
+     * @param bool $boolean To allow extra keys
+     * @param bool $remove  To remove extra keys
+     *
+     * @return void
+     */
+    public function setIgnoreExtraKeys(bool $boolean, bool $remove = true)
+    {
+        $this->ignoreExtraKeys = $boolean;
+        $this->removeExtraKeys = $this->ignoreExtraKeys && $remove;
+    }
+
+    /**
+     * Returns true when extra keys should be ignored without an exception.
+     */
+    public function shouldIgnoreExtraKeys(): bool
+    {
+        return $this->ignoreExtraKeys;
+    }
+
+    /**
+     * @return void
+     */
+    public function setName(string $name)
+    {
+        $this->name = $name;
+    }
+
+    public function hasDefaultValue(): bool
+    {
+        return $this->addIfNotSet;
+    }
+
+    public function getDefaultValue(): mixed
+    {
+        if (!$this->hasDefaultValue()) {
+            throw new \RuntimeException(sprintf('The node at path "%s" has no default value.', $this->getPath()));
+        }
+
+        $defaults = [];
+        foreach ($this->children as $name => $child) {
+            if ($child->hasDefaultValue()) {
+                $defaults[$name] = $child->getDefaultValue();
+            }
+        }
+
+        return $defaults;
+    }
+
+    /**
+     * Adds a child node.
+     *
+     * @return void
+     *
+     * @throws \InvalidArgumentException when the child node has no name
+     * @throws \InvalidArgumentException when the child node's name is not unique
+     */
+    public function addChild(NodeInterface $node)
+    {
+        $name = $node->getName();
+        if ('' === $name) {
+            throw new \InvalidArgumentException('Child nodes must be named.');
+        }
+        if (isset($this->children[$name])) {
+            throw new \InvalidArgumentException(sprintf('A child node named "%s" already exists.', $name));
+        }
+
+        $this->children[$name] = $node;
+    }
+
+    /**
+     * @throws UnsetKeyException
+     * @throws InvalidConfigurationException if the node doesn't have enough children
+     */
+    protected function finalizeValue(mixed $value): mixed
+    {
+        if (false === $value) {
+            throw new UnsetKeyException(sprintf('Unsetting key for path "%s", value: %s.', $this->getPath(), json_encode($value)));
+        }
+
+        foreach ($this->children as $name => $child) {
+            if (!\array_key_exists($name, $value)) {
+                if ($child->isRequired()) {
+                    $message = sprintf('The child config "%s" under "%s" must be configured', $name, $this->getPath());
+                    if ($child->getInfo()) {
+                        $message .= sprintf(': %s', $child->getInfo());
+                    } else {
+                        $message .= '.';
+                    }
+                    $ex = new InvalidConfigurationException($message);
+                    $ex->setPath($this->getPath());
+
+                    throw $ex;
+                }
+
+                if ($child->hasDefaultValue()) {
+                    $value[$name] = $child->getDefaultValue();
+                }
+
+                continue;
+            }
+
+            if ($child->isDeprecated()) {
+                $deprecation = $child->getDeprecation($name, $this->getPath());
+                trigger_deprecation($deprecation['package'], $deprecation['version'], $deprecation['message']);
+            }
+
+            try {
+                $value[$name] = $child->finalize($value[$name]);
+            } catch (UnsetKeyException) {
+                unset($value[$name]);
+            }
+        }
+
+        return $value;
+    }
+
+    /**
+     * @return void
+     */
+    protected function validateType(mixed $value)
+    {
+        if (!\is_array($value) && (!$this->allowFalse || false !== $value)) {
+            $ex = new InvalidTypeException(sprintf('Invalid type for path "%s". Expected "array", but got "%s"', $this->getPath(), get_debug_type($value)));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+    }
+
+    /**
+     * @throws InvalidConfigurationException
+     */
+    protected function normalizeValue(mixed $value): mixed
+    {
+        if (false === $value) {
+            return $value;
+        }
+
+        $value = $this->remapXml($value);
+
+        $normalized = [];
+        foreach ($value as $name => $val) {
+            if (isset($this->children[$name])) {
+                try {
+                    $normalized[$name] = $this->children[$name]->normalize($val);
+                } catch (UnsetKeyException) {
+                }
+                unset($value[$name]);
+            } elseif (!$this->removeExtraKeys) {
+                $normalized[$name] = $val;
+            }
+        }
+
+        // if extra fields are present, throw exception
+        if (\count($value) && !$this->ignoreExtraKeys) {
+            $proposals = array_keys($this->children);
+            sort($proposals);
+            $guesses = [];
+
+            foreach (array_keys($value) as $subject) {
+                $minScore = \INF;
+                foreach ($proposals as $proposal) {
+                    $distance = levenshtein($subject, $proposal);
+                    if ($distance <= $minScore && $distance < 3) {
+                        $guesses[$proposal] = $distance;
+                        $minScore = $distance;
+                    }
+                }
+            }
+
+            $msg = sprintf('Unrecognized option%s "%s" under "%s"', 1 === \count($value) ? '' : 's', implode(', ', array_keys($value)), $this->getPath());
+
+            if (\count($guesses)) {
+                asort($guesses);
+                $msg .= sprintf('. Did you mean "%s"?', implode('", "', array_keys($guesses)));
+            } else {
+                $msg .= sprintf('. Available option%s %s "%s".', 1 === \count($proposals) ? '' : 's', 1 === \count($proposals) ? 'is' : 'are', implode('", "', $proposals));
+            }
+
+            $ex = new InvalidConfigurationException($msg);
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+
+        return $normalized;
+    }
+
+    /**
+     * Remaps multiple singular values to a single plural value.
+     */
+    protected function remapXml(array $value): array
+    {
+        foreach ($this->xmlRemappings as [$singular, $plural]) {
+            if (!isset($value[$singular])) {
+                continue;
+            }
+
+            $value[$plural] = Processor::normalizeConfig($value, $singular, $plural);
+            unset($value[$singular]);
+        }
+
+        return $value;
+    }
+
+    /**
+     * @throws InvalidConfigurationException
+     * @throws \RuntimeException
+     */
+    protected function mergeValues(mixed $leftSide, mixed $rightSide): mixed
+    {
+        if (false === $rightSide) {
+            // if this is still false after the last config has been merged the
+            // finalization pass will take care of removing this key entirely
+            return false;
+        }
+
+        if (false === $leftSide || !$this->performDeepMerging) {
+            return $rightSide;
+        }
+
+        foreach ($rightSide as $k => $v) {
+            // no conflict
+            if (!\array_key_exists($k, $leftSide)) {
+                if (!$this->allowNewKeys) {
+                    $ex = new InvalidConfigurationException(sprintf('You are not allowed to define new elements for path "%s". Please define all elements for this path in one config file. If you are trying to overwrite an element, make sure you redefine it with the same name.', $this->getPath()));
+                    $ex->setPath($this->getPath());
+
+                    throw $ex;
+                }
+
+                $leftSide[$k] = $v;
+                continue;
+            }
+
+            if (!isset($this->children[$k])) {
+                if (!$this->ignoreExtraKeys || $this->removeExtraKeys) {
+                    throw new \RuntimeException('merge() expects a normalized config array.');
+                }
+
+                $leftSide[$k] = $v;
+                continue;
+            }
+
+            $leftSide[$k] = $this->children[$k]->merge($leftSide[$k], $v);
+        }
+
+        return $leftSide;
+    }
+
+    protected function allowPlaceholders(): bool
+    {
+        return false;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/BaseNode.php

@@ -0,0 +1,542 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\Exception;
+use Symfony\Component\Config\Definition\Exception\ForbiddenOverwriteException;
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+use Symfony\Component\Config\Definition\Exception\UnsetKeyException;
+
+/**
+ * The base node class.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+abstract class BaseNode implements NodeInterface
+{
+    public const DEFAULT_PATH_SEPARATOR = '.';
+
+    private static array $placeholderUniquePrefixes = [];
+    private static array $placeholders = [];
+
+    protected $name;
+    protected $parent;
+    protected $normalizationClosures = [];
+    protected $normalizedTypes = [];
+    protected $finalValidationClosures = [];
+    protected $allowOverwrite = true;
+    protected $required = false;
+    protected $deprecation = [];
+    protected $equivalentValues = [];
+    protected $attributes = [];
+    protected $pathSeparator;
+
+    private mixed $handlingPlaceholder = null;
+
+    /**
+     * @throws \InvalidArgumentException if the name contains a period
+     */
+    public function __construct(?string $name, ?NodeInterface $parent = null, string $pathSeparator = self::DEFAULT_PATH_SEPARATOR)
+    {
+        if (str_contains($name = (string) $name, $pathSeparator)) {
+            throw new \InvalidArgumentException('The name must not contain ".'.$pathSeparator.'".');
+        }
+
+        $this->name = $name;
+        $this->parent = $parent;
+        $this->pathSeparator = $pathSeparator;
+    }
+
+    /**
+     * Register possible (dummy) values for a dynamic placeholder value.
+     *
+     * Matching configuration values will be processed with a provided value, one by one. After a provided value is
+     * successfully processed the configuration value is returned as is, thus preserving the placeholder.
+     *
+     * @internal
+     */
+    public static function setPlaceholder(string $placeholder, array $values): void
+    {
+        if (!$values) {
+            throw new \InvalidArgumentException('At least one value must be provided.');
+        }
+
+        self::$placeholders[$placeholder] = $values;
+    }
+
+    /**
+     * Adds a common prefix for dynamic placeholder values.
+     *
+     * Matching configuration values will be skipped from being processed and are returned as is, thus preserving the
+     * placeholder. An exact match provided by {@see setPlaceholder()} might take precedence.
+     *
+     * @internal
+     */
+    public static function setPlaceholderUniquePrefix(string $prefix): void
+    {
+        self::$placeholderUniquePrefixes[] = $prefix;
+    }
+
+    /**
+     * Resets all current placeholders available.
+     *
+     * @internal
+     */
+    public static function resetPlaceholders(): void
+    {
+        self::$placeholderUniquePrefixes = [];
+        self::$placeholders = [];
+    }
+
+    /**
+     * @return void
+     */
+    public function setAttribute(string $key, mixed $value)
+    {
+        $this->attributes[$key] = $value;
+    }
+
+    public function getAttribute(string $key, mixed $default = null): mixed
+    {
+        return $this->attributes[$key] ?? $default;
+    }
+
+    public function hasAttribute(string $key): bool
+    {
+        return isset($this->attributes[$key]);
+    }
+
+    public function getAttributes(): array
+    {
+        return $this->attributes;
+    }
+
+    /**
+     * @return void
+     */
+    public function setAttributes(array $attributes)
+    {
+        $this->attributes = $attributes;
+    }
+
+    /**
+     * @return void
+     */
+    public function removeAttribute(string $key)
+    {
+        unset($this->attributes[$key]);
+    }
+
+    /**
+     * Sets an info message.
+     *
+     * @return void
+     */
+    public function setInfo(string $info)
+    {
+        $this->setAttribute('info', $info);
+    }
+
+    /**
+     * Returns info message.
+     */
+    public function getInfo(): ?string
+    {
+        return $this->getAttribute('info');
+    }
+
+    /**
+     * Sets the example configuration for this node.
+     *
+     * @return void
+     */
+    public function setExample(string|array $example)
+    {
+        $this->setAttribute('example', $example);
+    }
+
+    /**
+     * Retrieves the example configuration for this node.
+     */
+    public function getExample(): string|array|null
+    {
+        return $this->getAttribute('example');
+    }
+
+    /**
+     * Adds an equivalent value.
+     *
+     * @return void
+     */
+    public function addEquivalentValue(mixed $originalValue, mixed $equivalentValue)
+    {
+        $this->equivalentValues[] = [$originalValue, $equivalentValue];
+    }
+
+    /**
+     * Set this node as required.
+     *
+     * @return void
+     */
+    public function setRequired(bool $boolean)
+    {
+        $this->required = $boolean;
+    }
+
+    /**
+     * Sets this node as deprecated.
+     *
+     * You can use %node% and %path% placeholders in your message to display,
+     * respectively, the node name and its complete path.
+     *
+     * @param string $package The name of the composer package that is triggering the deprecation
+     * @param string $version The version of the package that introduced the deprecation
+     * @param string $message the deprecation message to use
+     *
+     * @return void
+     */
+    public function setDeprecated(string $package, string $version, string $message = 'The child node "%node%" at path "%path%" is deprecated.')
+    {
+        $this->deprecation = [
+            'package' => $package,
+            'version' => $version,
+            'message' => $message,
+        ];
+    }
+
+    /**
+     * Sets if this node can be overridden.
+     *
+     * @return void
+     */
+    public function setAllowOverwrite(bool $allow)
+    {
+        $this->allowOverwrite = $allow;
+    }
+
+    /**
+     * Sets the closures used for normalization.
+     *
+     * @param \Closure[] $closures An array of Closures used for normalization
+     *
+     * @return void
+     */
+    public function setNormalizationClosures(array $closures)
+    {
+        $this->normalizationClosures = $closures;
+    }
+
+    /**
+     * Sets the list of types supported by normalization.
+     *
+     * see ExprBuilder::TYPE_* constants.
+     *
+     * @return void
+     */
+    public function setNormalizedTypes(array $types)
+    {
+        $this->normalizedTypes = $types;
+    }
+
+    /**
+     * Gets the list of types supported by normalization.
+     *
+     * see ExprBuilder::TYPE_* constants.
+     */
+    public function getNormalizedTypes(): array
+    {
+        return $this->normalizedTypes;
+    }
+
+    /**
+     * Sets the closures used for final validation.
+     *
+     * @param \Closure[] $closures An array of Closures used for final validation
+     *
+     * @return void
+     */
+    public function setFinalValidationClosures(array $closures)
+    {
+        $this->finalValidationClosures = $closures;
+    }
+
+    public function isRequired(): bool
+    {
+        return $this->required;
+    }
+
+    /**
+     * Checks if this node is deprecated.
+     */
+    public function isDeprecated(): bool
+    {
+        return (bool) $this->deprecation;
+    }
+
+    /**
+     * @param string $node The configuration node name
+     * @param string $path The path of the node
+     */
+    public function getDeprecation(string $node, string $path): array
+    {
+        return [
+            'package' => $this->deprecation['package'],
+            'version' => $this->deprecation['version'],
+            'message' => strtr($this->deprecation['message'], ['%node%' => $node, '%path%' => $path]),
+        ];
+    }
+
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    public function getPath(): string
+    {
+        if (null !== $this->parent) {
+            return $this->parent->getPath().$this->pathSeparator.$this->name;
+        }
+
+        return $this->name;
+    }
+
+    final public function merge(mixed $leftSide, mixed $rightSide): mixed
+    {
+        if (!$this->allowOverwrite) {
+            throw new ForbiddenOverwriteException(sprintf('Configuration path "%s" cannot be overwritten. You have to define all options for this path, and any of its sub-paths in one configuration section.', $this->getPath()));
+        }
+
+        if ($leftSide !== $leftPlaceholders = self::resolvePlaceholderValue($leftSide)) {
+            foreach ($leftPlaceholders as $leftPlaceholder) {
+                $this->handlingPlaceholder = $leftSide;
+                try {
+                    $this->merge($leftPlaceholder, $rightSide);
+                } finally {
+                    $this->handlingPlaceholder = null;
+                }
+            }
+
+            return $rightSide;
+        }
+
+        if ($rightSide !== $rightPlaceholders = self::resolvePlaceholderValue($rightSide)) {
+            foreach ($rightPlaceholders as $rightPlaceholder) {
+                $this->handlingPlaceholder = $rightSide;
+                try {
+                    $this->merge($leftSide, $rightPlaceholder);
+                } finally {
+                    $this->handlingPlaceholder = null;
+                }
+            }
+
+            return $rightSide;
+        }
+
+        $this->doValidateType($leftSide);
+        $this->doValidateType($rightSide);
+
+        return $this->mergeValues($leftSide, $rightSide);
+    }
+
+    final public function normalize(mixed $value): mixed
+    {
+        $value = $this->preNormalize($value);
+
+        // run custom normalization closures
+        foreach ($this->normalizationClosures as $closure) {
+            $value = $closure($value);
+        }
+
+        // resolve placeholder value
+        if ($value !== $placeholders = self::resolvePlaceholderValue($value)) {
+            foreach ($placeholders as $placeholder) {
+                $this->handlingPlaceholder = $value;
+                try {
+                    $this->normalize($placeholder);
+                } finally {
+                    $this->handlingPlaceholder = null;
+                }
+            }
+
+            return $value;
+        }
+
+        // replace value with their equivalent
+        foreach ($this->equivalentValues as $data) {
+            if ($data[0] === $value) {
+                $value = $data[1];
+            }
+        }
+
+        // validate type
+        $this->doValidateType($value);
+
+        // normalize value
+        return $this->normalizeValue($value);
+    }
+
+    /**
+     * Normalizes the value before any other normalization is applied.
+     */
+    protected function preNormalize(mixed $value): mixed
+    {
+        return $value;
+    }
+
+    /**
+     * Returns parent node for this node.
+     */
+    public function getParent(): ?NodeInterface
+    {
+        return $this->parent;
+    }
+
+    final public function finalize(mixed $value): mixed
+    {
+        if ($value !== $placeholders = self::resolvePlaceholderValue($value)) {
+            foreach ($placeholders as $placeholder) {
+                $this->handlingPlaceholder = $value;
+                try {
+                    $this->finalize($placeholder);
+                } finally {
+                    $this->handlingPlaceholder = null;
+                }
+            }
+
+            return $value;
+        }
+
+        $this->doValidateType($value);
+
+        $value = $this->finalizeValue($value);
+
+        // Perform validation on the final value if a closure has been set.
+        // The closure is also allowed to return another value.
+        foreach ($this->finalValidationClosures as $closure) {
+            try {
+                $value = $closure($value);
+            } catch (Exception $e) {
+                if ($e instanceof UnsetKeyException && null !== $this->handlingPlaceholder) {
+                    continue;
+                }
+
+                throw $e;
+            } catch (\Exception $e) {
+                throw new InvalidConfigurationException(sprintf('Invalid configuration for path "%s": ', $this->getPath()).$e->getMessage(), $e->getCode(), $e);
+            }
+        }
+
+        return $value;
+    }
+
+    /**
+     * Validates the type of a Node.
+     *
+     * @return void
+     *
+     * @throws InvalidTypeException when the value is invalid
+     */
+    abstract protected function validateType(mixed $value);
+
+    /**
+     * Normalizes the value.
+     */
+    abstract protected function normalizeValue(mixed $value): mixed;
+
+    /**
+     * Merges two values together.
+     */
+    abstract protected function mergeValues(mixed $leftSide, mixed $rightSide): mixed;
+
+    /**
+     * Finalizes a value.
+     */
+    abstract protected function finalizeValue(mixed $value): mixed;
+
+    /**
+     * Tests if placeholder values are allowed for this node.
+     */
+    protected function allowPlaceholders(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Tests if a placeholder is being handled currently.
+     */
+    protected function isHandlingPlaceholder(): bool
+    {
+        return null !== $this->handlingPlaceholder;
+    }
+
+    /**
+     * Gets allowed dynamic types for this node.
+     */
+    protected function getValidPlaceholderTypes(): array
+    {
+        return [];
+    }
+
+    private static function resolvePlaceholderValue(mixed $value): mixed
+    {
+        if (\is_string($value)) {
+            if (isset(self::$placeholders[$value])) {
+                return self::$placeholders[$value];
+            }
+
+            foreach (self::$placeholderUniquePrefixes as $placeholderUniquePrefix) {
+                if (str_starts_with($value, $placeholderUniquePrefix)) {
+                    return [];
+                }
+            }
+        }
+
+        return $value;
+    }
+
+    private function doValidateType(mixed $value): void
+    {
+        if (null !== $this->handlingPlaceholder && !$this->allowPlaceholders()) {
+            $e = new InvalidTypeException(sprintf('A dynamic value is not compatible with a "%s" node type at path "%s".', static::class, $this->getPath()));
+            $e->setPath($this->getPath());
+
+            throw $e;
+        }
+
+        if (null === $this->handlingPlaceholder || null === $value) {
+            $this->validateType($value);
+
+            return;
+        }
+
+        $knownTypes = array_keys(self::$placeholders[$this->handlingPlaceholder]);
+        $validTypes = $this->getValidPlaceholderTypes();
+
+        if ($validTypes && array_diff($knownTypes, $validTypes)) {
+            $e = new InvalidTypeException(sprintf(
+                'Invalid type for path "%s". Expected %s, but got %s.',
+                $this->getPath(),
+                1 === \count($validTypes) ? '"'.reset($validTypes).'"' : 'one of "'.implode('", "', $validTypes).'"',
+                1 === \count($knownTypes) ? '"'.reset($knownTypes).'"' : 'one of "'.implode('", "', $knownTypes).'"'
+            ));
+            if ($hint = $this->getInfo()) {
+                $e->addHint($hint);
+            }
+            $e->setPath($this->getPath());
+
+            throw $e;
+        }
+
+        $this->validateType($value);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/BooleanNode.php

@@ -0,0 +1,49 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+
+/**
+ * This node represents a Boolean value in the config tree.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class BooleanNode extends ScalarNode
+{
+    /**
+     * @return void
+     */
+    protected function validateType(mixed $value)
+    {
+        if (!\is_bool($value)) {
+            $ex = new InvalidTypeException(sprintf('Invalid type for path "%s". Expected "bool", but got "%s".', $this->getPath(), get_debug_type($value)));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+    }
+
+    protected function isValueEmpty(mixed $value): bool
+    {
+        // a boolean value cannot be empty
+        return false;
+    }
+
+    protected function getValidPlaceholderTypes(): array
+    {
+        return ['bool'];
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/ArrayNodeDefinition.php

@@ -0,0 +1,516 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\ArrayNode;
+use Symfony\Component\Config\Definition\Exception\InvalidDefinitionException;
+use Symfony\Component\Config\Definition\NodeInterface;
+use Symfony\Component\Config\Definition\PrototypedArrayNode;
+
+/**
+ * This class provides a fluent interface for defining an array node.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ArrayNodeDefinition extends NodeDefinition implements ParentNodeDefinitionInterface
+{
+    protected $performDeepMerging = true;
+    protected $ignoreExtraKeys = false;
+    protected $removeExtraKeys = true;
+    protected $children = [];
+    protected $prototype;
+    protected $atLeastOne = false;
+    protected $allowNewKeys = true;
+    protected $key;
+    protected $removeKeyItem;
+    protected $addDefaults = false;
+    protected $addDefaultChildren = false;
+    protected $nodeBuilder;
+    protected $normalizeKeys = true;
+
+    public function __construct(?string $name, ?NodeParentInterface $parent = null)
+    {
+        parent::__construct($name, $parent);
+
+        $this->nullEquivalent = [];
+        $this->trueEquivalent = [];
+    }
+
+    /**
+     * @return void
+     */
+    public function setBuilder(NodeBuilder $builder)
+    {
+        $this->nodeBuilder = $builder;
+    }
+
+    public function children(): NodeBuilder
+    {
+        return $this->getNodeBuilder();
+    }
+
+    /**
+     * Sets a prototype for child nodes.
+     */
+    public function prototype(string $type): NodeDefinition
+    {
+        return $this->prototype = $this->getNodeBuilder()->node(null, $type)->setParent($this);
+    }
+
+    public function variablePrototype(): VariableNodeDefinition
+    {
+        return $this->prototype('variable');
+    }
+
+    public function scalarPrototype(): ScalarNodeDefinition
+    {
+        return $this->prototype('scalar');
+    }
+
+    public function booleanPrototype(): BooleanNodeDefinition
+    {
+        return $this->prototype('boolean');
+    }
+
+    public function integerPrototype(): IntegerNodeDefinition
+    {
+        return $this->prototype('integer');
+    }
+
+    public function floatPrototype(): FloatNodeDefinition
+    {
+        return $this->prototype('float');
+    }
+
+    public function arrayPrototype(): self
+    {
+        return $this->prototype('array');
+    }
+
+    public function enumPrototype(): EnumNodeDefinition
+    {
+        return $this->prototype('enum');
+    }
+
+    /**
+     * Adds the default value if the node is not set in the configuration.
+     *
+     * This method is applicable to concrete nodes only (not to prototype nodes).
+     * If this function has been called and the node is not set during the finalization
+     * phase, it's default value will be derived from its children default values.
+     *
+     * @return $this
+     */
+    public function addDefaultsIfNotSet(): static
+    {
+        $this->addDefaults = true;
+
+        return $this;
+    }
+
+    /**
+     * Adds children with a default value when none are defined.
+     *
+     * This method is applicable to prototype nodes only.
+     *
+     * @param int|string|array|null $children The number of children|The child name|The children names to be added
+     *
+     * @return $this
+     */
+    public function addDefaultChildrenIfNoneSet(int|string|array|null $children = null): static
+    {
+        $this->addDefaultChildren = $children;
+
+        return $this;
+    }
+
+    /**
+     * Requires the node to have at least one element.
+     *
+     * This method is applicable to prototype nodes only.
+     *
+     * @return $this
+     */
+    public function requiresAtLeastOneElement(): static
+    {
+        $this->atLeastOne = true;
+
+        return $this;
+    }
+
+    /**
+     * Disallows adding news keys in a subsequent configuration.
+     *
+     * If used all keys have to be defined in the same configuration file.
+     *
+     * @return $this
+     */
+    public function disallowNewKeysInSubsequentConfigs(): static
+    {
+        $this->allowNewKeys = false;
+
+        return $this;
+    }
+
+    /**
+     * Sets a normalization rule for XML configurations.
+     *
+     * @param string      $singular The key to remap
+     * @param string|null $plural   The plural of the key for irregular plurals
+     *
+     * @return $this
+     */
+    public function fixXmlConfig(string $singular, ?string $plural = null): static
+    {
+        $this->normalization()->remap($singular, $plural);
+
+        return $this;
+    }
+
+    /**
+     * Sets the attribute which value is to be used as key.
+     *
+     * This is useful when you have an indexed array that should be an
+     * associative array. You can select an item from within the array
+     * to be the key of the particular item. For example, if "id" is the
+     * "key", then:
+     *
+     *     [
+     *         ['id' => 'my_name', 'foo' => 'bar'],
+     *     ];
+     *
+     *   becomes
+     *
+     *     [
+     *         'my_name' => ['foo' => 'bar'],
+     *     ];
+     *
+     * If you'd like "'id' => 'my_name'" to still be present in the resulting
+     * array, then you can set the second argument of this method to false.
+     *
+     * This method is applicable to prototype nodes only.
+     *
+     * @param string $name          The name of the key
+     * @param bool   $removeKeyItem Whether or not the key item should be removed
+     *
+     * @return $this
+     */
+    public function useAttributeAsKey(string $name, bool $removeKeyItem = true): static
+    {
+        $this->key = $name;
+        $this->removeKeyItem = $removeKeyItem;
+
+        return $this;
+    }
+
+    /**
+     * Sets whether the node can be unset.
+     *
+     * @return $this
+     */
+    public function canBeUnset(bool $allow = true): static
+    {
+        $this->merge()->allowUnset($allow);
+
+        return $this;
+    }
+
+    /**
+     * Adds an "enabled" boolean to enable the current section.
+     *
+     * By default, the section is disabled. If any configuration is specified then
+     * the node will be automatically enabled:
+     *
+     * enableableArrayNode: {enabled: true, ...}   # The config is enabled & default values get overridden
+     * enableableArrayNode: ~                      # The config is enabled & use the default values
+     * enableableArrayNode: true                   # The config is enabled & use the default values
+     * enableableArrayNode: {other: value, ...}    # The config is enabled & default values get overridden
+     * enableableArrayNode: {enabled: false, ...}  # The config is disabled
+     * enableableArrayNode: false                  # The config is disabled
+     *
+     * @return $this
+     */
+    public function canBeEnabled(): static
+    {
+        $this
+            ->addDefaultsIfNotSet()
+            ->treatFalseLike(['enabled' => false])
+            ->treatTrueLike(['enabled' => true])
+            ->treatNullLike(['enabled' => true])
+            ->beforeNormalization()
+                ->ifArray()
+                ->then(function (array $v) {
+                    $v['enabled'] ??= true;
+
+                    return $v;
+                })
+            ->end()
+            ->children()
+                ->booleanNode('enabled')
+                    ->defaultFalse()
+        ;
+
+        return $this;
+    }
+
+    /**
+     * Adds an "enabled" boolean to enable the current section.
+     *
+     * By default, the section is enabled.
+     *
+     * @return $this
+     */
+    public function canBeDisabled(): static
+    {
+        $this
+            ->addDefaultsIfNotSet()
+            ->treatFalseLike(['enabled' => false])
+            ->treatTrueLike(['enabled' => true])
+            ->treatNullLike(['enabled' => true])
+            ->children()
+                ->booleanNode('enabled')
+                    ->defaultTrue()
+        ;
+
+        return $this;
+    }
+
+    /**
+     * Disables the deep merging of the node.
+     *
+     * @return $this
+     */
+    public function performNoDeepMerging(): static
+    {
+        $this->performDeepMerging = false;
+
+        return $this;
+    }
+
+    /**
+     * Allows extra config keys to be specified under an array without
+     * throwing an exception.
+     *
+     * Those config values are ignored and removed from the resulting
+     * array. This should be used only in special cases where you want
+     * to send an entire configuration array through a special tree that
+     * processes only part of the array.
+     *
+     * @param bool $remove Whether to remove the extra keys
+     *
+     * @return $this
+     */
+    public function ignoreExtraKeys(bool $remove = true): static
+    {
+        $this->ignoreExtraKeys = true;
+        $this->removeExtraKeys = $remove;
+
+        return $this;
+    }
+
+    /**
+     * Sets whether to enable key normalization.
+     *
+     * @return $this
+     */
+    public function normalizeKeys(bool $bool): static
+    {
+        $this->normalizeKeys = $bool;
+
+        return $this;
+    }
+
+    public function append(NodeDefinition $node): static
+    {
+        $this->children[$node->name] = $node->setParent($this);
+
+        return $this;
+    }
+
+    /**
+     * Returns a node builder to be used to add children and prototype.
+     */
+    protected function getNodeBuilder(): NodeBuilder
+    {
+        $this->nodeBuilder ??= new NodeBuilder();
+
+        return $this->nodeBuilder->setParent($this);
+    }
+
+    protected function createNode(): NodeInterface
+    {
+        if (!isset($this->prototype)) {
+            $node = new ArrayNode($this->name, $this->parent, $this->pathSeparator);
+
+            $this->validateConcreteNode($node);
+
+            $node->setAddIfNotSet($this->addDefaults);
+
+            foreach ($this->children as $child) {
+                $child->parent = $node;
+                $node->addChild($child->getNode());
+            }
+        } else {
+            $node = new PrototypedArrayNode($this->name, $this->parent, $this->pathSeparator);
+
+            $this->validatePrototypeNode($node);
+
+            if (null !== $this->key) {
+                $node->setKeyAttribute($this->key, $this->removeKeyItem);
+            }
+
+            if (true === $this->atLeastOne || false === $this->allowEmptyValue) {
+                $node->setMinNumberOfElements(1);
+            }
+
+            if ($this->default) {
+                if (!\is_array($this->defaultValue)) {
+                    throw new \InvalidArgumentException(sprintf('%s: the default value of an array node has to be an array.', $node->getPath()));
+                }
+
+                $node->setDefaultValue($this->defaultValue);
+            }
+
+            if (false !== $this->addDefaultChildren) {
+                $node->setAddChildrenIfNoneSet($this->addDefaultChildren);
+                if ($this->prototype instanceof static && !isset($this->prototype->prototype)) {
+                    $this->prototype->addDefaultsIfNotSet();
+                }
+            }
+
+            $this->prototype->parent = $node;
+            $node->setPrototype($this->prototype->getNode());
+        }
+
+        $node->setAllowNewKeys($this->allowNewKeys);
+        $node->addEquivalentValue(null, $this->nullEquivalent);
+        $node->addEquivalentValue(true, $this->trueEquivalent);
+        $node->addEquivalentValue(false, $this->falseEquivalent);
+        $node->setPerformDeepMerging($this->performDeepMerging);
+        $node->setRequired($this->required);
+        $node->setIgnoreExtraKeys($this->ignoreExtraKeys, $this->removeExtraKeys);
+        $node->setNormalizeKeys($this->normalizeKeys);
+
+        if ($this->deprecation) {
+            $node->setDeprecated($this->deprecation['package'], $this->deprecation['version'], $this->deprecation['message']);
+        }
+
+        if (isset($this->normalization)) {
+            $node->setNormalizationClosures($this->normalization->before);
+            $node->setNormalizedTypes($this->normalization->declaredTypes);
+            $node->setXmlRemappings($this->normalization->remappings);
+        }
+
+        if (isset($this->merge)) {
+            $node->setAllowOverwrite($this->merge->allowOverwrite);
+            $node->setAllowFalse($this->merge->allowFalse);
+        }
+
+        if (isset($this->validation)) {
+            $node->setFinalValidationClosures($this->validation->rules);
+        }
+
+        return $node;
+    }
+
+    /**
+     * Validate the configuration of a concrete node.
+     *
+     * @return void
+     *
+     * @throws InvalidDefinitionException
+     */
+    protected function validateConcreteNode(ArrayNode $node)
+    {
+        $path = $node->getPath();
+
+        if (null !== $this->key) {
+            throw new InvalidDefinitionException(sprintf('->useAttributeAsKey() is not applicable to concrete nodes at path "%s".', $path));
+        }
+
+        if (false === $this->allowEmptyValue) {
+            throw new InvalidDefinitionException(sprintf('->cannotBeEmpty() is not applicable to concrete nodes at path "%s".', $path));
+        }
+
+        if (true === $this->atLeastOne) {
+            throw new InvalidDefinitionException(sprintf('->requiresAtLeastOneElement() is not applicable to concrete nodes at path "%s".', $path));
+        }
+
+        if ($this->default) {
+            throw new InvalidDefinitionException(sprintf('->defaultValue() is not applicable to concrete nodes at path "%s".', $path));
+        }
+
+        if (false !== $this->addDefaultChildren) {
+            throw new InvalidDefinitionException(sprintf('->addDefaultChildrenIfNoneSet() is not applicable to concrete nodes at path "%s".', $path));
+        }
+    }
+
+    /**
+     * Validate the configuration of a prototype node.
+     *
+     * @return void
+     *
+     * @throws InvalidDefinitionException
+     */
+    protected function validatePrototypeNode(PrototypedArrayNode $node)
+    {
+        $path = $node->getPath();
+
+        if ($this->addDefaults) {
+            throw new InvalidDefinitionException(sprintf('->addDefaultsIfNotSet() is not applicable to prototype nodes at path "%s".', $path));
+        }
+
+        if (false !== $this->addDefaultChildren) {
+            if ($this->default) {
+                throw new InvalidDefinitionException(sprintf('A default value and default children might not be used together at path "%s".', $path));
+            }
+
+            if (null !== $this->key && (null === $this->addDefaultChildren || \is_int($this->addDefaultChildren) && $this->addDefaultChildren > 0)) {
+                throw new InvalidDefinitionException(sprintf('->addDefaultChildrenIfNoneSet() should set default children names as ->useAttributeAsKey() is used at path "%s".', $path));
+            }
+
+            if (null === $this->key && (\is_string($this->addDefaultChildren) || \is_array($this->addDefaultChildren))) {
+                throw new InvalidDefinitionException(sprintf('->addDefaultChildrenIfNoneSet() might not set default children names as ->useAttributeAsKey() is not used at path "%s".', $path));
+            }
+        }
+    }
+
+    /**
+     * @return NodeDefinition[]
+     */
+    public function getChildNodeDefinitions(): array
+    {
+        return $this->children;
+    }
+
+    /**
+     * Finds a node defined by the given $nodePath.
+     *
+     * @param string $nodePath The path of the node to find. e.g "doctrine.orm.mappings"
+     */
+    public function find(string $nodePath): NodeDefinition
+    {
+        $firstPathSegment = (false === $pathSeparatorPos = strpos($nodePath, $this->pathSeparator))
+            ? $nodePath
+            : substr($nodePath, 0, $pathSeparatorPos);
+
+        if (null === $node = ($this->children[$firstPathSegment] ?? null)) {
+            throw new \RuntimeException(sprintf('Node with name "%s" does not exist in the current node "%s".', $firstPathSegment, $this->name));
+        }
+
+        if (false === $pathSeparatorPos) {
+            return $node;
+        }
+
+        return $node->find(substr($nodePath, $pathSeparatorPos + \strlen($this->pathSeparator)));
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/BooleanNodeDefinition.php

@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\BooleanNode;
+use Symfony\Component\Config\Definition\Exception\InvalidDefinitionException;
+
+/**
+ * This class provides a fluent interface for defining a node.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class BooleanNodeDefinition extends ScalarNodeDefinition
+{
+    public function __construct(?string $name, ?NodeParentInterface $parent = null)
+    {
+        parent::__construct($name, $parent);
+
+        $this->nullEquivalent = true;
+    }
+
+    /**
+     * Instantiate a Node.
+     */
+    protected function instantiateNode(): BooleanNode
+    {
+        return new BooleanNode($this->name, $this->parent, $this->pathSeparator);
+    }
+
+    /**
+     * @throws InvalidDefinitionException
+     */
+    public function cannotBeEmpty(): static
+    {
+        throw new InvalidDefinitionException('->cannotBeEmpty() is not applicable to BooleanNodeDefinition.');
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/BuilderAwareInterface.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * An interface that can be implemented by nodes which build other nodes.
+ *
+ * @author Roland Franssen <franssen.roland@gmail.com>
+ */
+interface BuilderAwareInterface
+{
+    /**
+     * Sets a custom children builder.
+     *
+     * @return void
+     */
+    public function setBuilder(NodeBuilder $builder);
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/EnumNodeDefinition.php

@@ -0,0 +1,52 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\EnumNode;
+
+/**
+ * Enum Node Definition.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class EnumNodeDefinition extends ScalarNodeDefinition
+{
+    private array $values;
+
+    /**
+     * @return $this
+     */
+    public function values(array $values): static
+    {
+        if (!$values) {
+            throw new \InvalidArgumentException('->values() must be called with at least one value.');
+        }
+
+        $this->values = $values;
+
+        return $this;
+    }
+
+    /**
+     * Instantiate a Node.
+     *
+     * @throws \RuntimeException
+     */
+    protected function instantiateNode(): EnumNode
+    {
+        if (!isset($this->values)) {
+            throw new \RuntimeException('You must call ->values() on enum nodes.');
+        }
+
+        return new EnumNode($this->name, $this->parent, $this->values, $this->pathSeparator);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/ExprBuilder.php

@@ -0,0 +1,252 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\Exception\UnsetKeyException;
+
+/**
+ * This class builds an if expression.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ * @author Christophe Coevoet <stof@notk.org>
+ */
+class ExprBuilder
+{
+    public const TYPE_ANY = 'any';
+    public const TYPE_STRING = 'string';
+    public const TYPE_NULL = 'null';
+    public const TYPE_ARRAY = 'array';
+
+    protected $node;
+
+    public $allowedTypes;
+    public $ifPart;
+    public $thenPart;
+
+    public function __construct(NodeDefinition $node)
+    {
+        $this->node = $node;
+    }
+
+    /**
+     * Marks the expression as being always used.
+     *
+     * @return $this
+     */
+    public function always(?\Closure $then = null): static
+    {
+        $this->ifPart = static fn () => true;
+        $this->allowedTypes = self::TYPE_ANY;
+
+        if (null !== $then) {
+            $this->thenPart = $then;
+        }
+
+        return $this;
+    }
+
+    /**
+     * Sets a closure to use as tests.
+     *
+     * The default one tests if the value is true.
+     *
+     * @return $this
+     */
+    public function ifTrue(?\Closure $closure = null): static
+    {
+        $this->ifPart = $closure ?? static fn ($v) => true === $v;
+        $this->allowedTypes = self::TYPE_ANY;
+
+        return $this;
+    }
+
+    /**
+     * Tests if the value is a string.
+     *
+     * @return $this
+     */
+    public function ifString(): static
+    {
+        $this->ifPart = \is_string(...);
+        $this->allowedTypes = self::TYPE_STRING;
+
+        return $this;
+    }
+
+    /**
+     * Tests if the value is null.
+     *
+     * @return $this
+     */
+    public function ifNull(): static
+    {
+        $this->ifPart = \is_null(...);
+        $this->allowedTypes = self::TYPE_NULL;
+
+        return $this;
+    }
+
+    /**
+     * Tests if the value is empty.
+     *
+     * @return $this
+     */
+    public function ifEmpty(): static
+    {
+        $this->ifPart = static fn ($v) => empty($v);
+        $this->allowedTypes = self::TYPE_ANY;
+
+        return $this;
+    }
+
+    /**
+     * Tests if the value is an array.
+     *
+     * @return $this
+     */
+    public function ifArray(): static
+    {
+        $this->ifPart = \is_array(...);
+        $this->allowedTypes = self::TYPE_ARRAY;
+
+        return $this;
+    }
+
+    /**
+     * Tests if the value is in an array.
+     *
+     * @return $this
+     */
+    public function ifInArray(array $array): static
+    {
+        $this->ifPart = static fn ($v) => \in_array($v, $array, true);
+        $this->allowedTypes = self::TYPE_ANY;
+
+        return $this;
+    }
+
+    /**
+     * Tests if the value is not in an array.
+     *
+     * @return $this
+     */
+    public function ifNotInArray(array $array): static
+    {
+        $this->ifPart = static fn ($v) => !\in_array($v, $array, true);
+        $this->allowedTypes = self::TYPE_ANY;
+
+        return $this;
+    }
+
+    /**
+     * Transforms variables of any type into an array.
+     *
+     * @return $this
+     */
+    public function castToArray(): static
+    {
+        $this->ifPart = static fn ($v) => !\is_array($v);
+        $this->allowedTypes = self::TYPE_ANY;
+        $this->thenPart = static fn ($v) => [$v];
+
+        return $this;
+    }
+
+    /**
+     * Sets the closure to run if the test pass.
+     *
+     * @return $this
+     */
+    public function then(\Closure $closure): static
+    {
+        $this->thenPart = $closure;
+
+        return $this;
+    }
+
+    /**
+     * Sets a closure returning an empty array.
+     *
+     * @return $this
+     */
+    public function thenEmptyArray(): static
+    {
+        $this->thenPart = static fn () => [];
+
+        return $this;
+    }
+
+    /**
+     * Sets a closure marking the value as invalid at processing time.
+     *
+     * if you want to add the value of the node in your message just use a %s placeholder.
+     *
+     * @return $this
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function thenInvalid(string $message): static
+    {
+        $this->thenPart = static fn ($v) => throw new \InvalidArgumentException(sprintf($message, json_encode($v)));
+
+        return $this;
+    }
+
+    /**
+     * Sets a closure unsetting this key of the array at processing time.
+     *
+     * @return $this
+     *
+     * @throws UnsetKeyException
+     */
+    public function thenUnset(): static
+    {
+        $this->thenPart = static fn () => throw new UnsetKeyException('Unsetting key.');
+
+        return $this;
+    }
+
+    /**
+     * Returns the related node.
+     *
+     * @throws \RuntimeException
+     */
+    public function end(): NodeDefinition|ArrayNodeDefinition|VariableNodeDefinition
+    {
+        if (null === $this->ifPart) {
+            throw new \RuntimeException('You must specify an if part.');
+        }
+        if (null === $this->thenPart) {
+            throw new \RuntimeException('You must specify a then part.');
+        }
+
+        return $this->node;
+    }
+
+    /**
+     * Builds the expressions.
+     *
+     * @param ExprBuilder[] $expressions An array of ExprBuilder instances to build
+     */
+    public static function buildExpressions(array $expressions): array
+    {
+        foreach ($expressions as $k => $expr) {
+            if ($expr instanceof self) {
+                $if = $expr->ifPart;
+                $then = $expr->thenPart;
+                $expressions[$k] = static fn ($v) => $if($v) ? $then($v) : $v;
+            }
+        }
+
+        return $expressions;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/FloatNodeDefinition.php

@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\FloatNode;
+
+/**
+ * This class provides a fluent interface for defining a float node.
+ *
+ * @author Jeanmonod David <david.jeanmonod@gmail.com>
+ */
+class FloatNodeDefinition extends NumericNodeDefinition
+{
+    /**
+     * Instantiates a Node.
+     */
+    protected function instantiateNode(): FloatNode
+    {
+        return new FloatNode($this->name, $this->parent, $this->min, $this->max, $this->pathSeparator);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/IntegerNodeDefinition.php

@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\IntegerNode;
+
+/**
+ * This class provides a fluent interface for defining an integer node.
+ *
+ * @author Jeanmonod David <david.jeanmonod@gmail.com>
+ */
+class IntegerNodeDefinition extends NumericNodeDefinition
+{
+    /**
+     * Instantiates a Node.
+     */
+    protected function instantiateNode(): IntegerNode
+    {
+        return new IntegerNode($this->name, $this->parent, $this->min, $this->max, $this->pathSeparator);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/MergeBuilder.php

@@ -0,0 +1,61 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * This class builds merge conditions.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class MergeBuilder
+{
+    protected $node;
+    public $allowFalse = false;
+    public $allowOverwrite = true;
+
+    public function __construct(NodeDefinition $node)
+    {
+        $this->node = $node;
+    }
+
+    /**
+     * Sets whether the node can be unset.
+     *
+     * @return $this
+     */
+    public function allowUnset(bool $allow = true): static
+    {
+        $this->allowFalse = $allow;
+
+        return $this;
+    }
+
+    /**
+     * Sets whether the node can be overwritten.
+     *
+     * @return $this
+     */
+    public function denyOverwrite(bool $deny = true): static
+    {
+        $this->allowOverwrite = !$deny;
+
+        return $this;
+    }
+
+    /**
+     * Returns the related node.
+     */
+    public function end(): NodeDefinition|ArrayNodeDefinition|VariableNodeDefinition
+    {
+        return $this->node;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/NodeBuilder.php

@@ -0,0 +1,204 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * This class provides a fluent interface for building a node.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class NodeBuilder implements NodeParentInterface
+{
+    protected $parent;
+    protected $nodeMapping;
+
+    public function __construct()
+    {
+        $this->nodeMapping = [
+            'variable' => VariableNodeDefinition::class,
+            'scalar' => ScalarNodeDefinition::class,
+            'boolean' => BooleanNodeDefinition::class,
+            'integer' => IntegerNodeDefinition::class,
+            'float' => FloatNodeDefinition::class,
+            'array' => ArrayNodeDefinition::class,
+            'enum' => EnumNodeDefinition::class,
+        ];
+    }
+
+    /**
+     * Set the parent node.
+     *
+     * @return $this
+     */
+    public function setParent(?ParentNodeDefinitionInterface $parent = null): static
+    {
+        if (1 > \func_num_args()) {
+            trigger_deprecation('symfony/form', '6.2', 'Calling "%s()" without any arguments is deprecated, pass null explicitly instead.', __METHOD__);
+        }
+        $this->parent = $parent;
+
+        return $this;
+    }
+
+    /**
+     * Creates a child array node.
+     */
+    public function arrayNode(string $name): ArrayNodeDefinition
+    {
+        return $this->node($name, 'array');
+    }
+
+    /**
+     * Creates a child scalar node.
+     */
+    public function scalarNode(string $name): ScalarNodeDefinition
+    {
+        return $this->node($name, 'scalar');
+    }
+
+    /**
+     * Creates a child Boolean node.
+     */
+    public function booleanNode(string $name): BooleanNodeDefinition
+    {
+        return $this->node($name, 'boolean');
+    }
+
+    /**
+     * Creates a child integer node.
+     */
+    public function integerNode(string $name): IntegerNodeDefinition
+    {
+        return $this->node($name, 'integer');
+    }
+
+    /**
+     * Creates a child float node.
+     */
+    public function floatNode(string $name): FloatNodeDefinition
+    {
+        return $this->node($name, 'float');
+    }
+
+    /**
+     * Creates a child EnumNode.
+     */
+    public function enumNode(string $name): EnumNodeDefinition
+    {
+        return $this->node($name, 'enum');
+    }
+
+    /**
+     * Creates a child variable node.
+     */
+    public function variableNode(string $name): VariableNodeDefinition
+    {
+        return $this->node($name, 'variable');
+    }
+
+    /**
+     * Returns the parent node.
+     *
+     * @return NodeDefinition&ParentNodeDefinitionInterface
+     */
+    public function end()
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Creates a child node.
+     *
+     * @throws \RuntimeException When the node type is not registered
+     * @throws \RuntimeException When the node class is not found
+     */
+    public function node(?string $name, string $type): NodeDefinition
+    {
+        $class = $this->getNodeClass($type);
+
+        $node = new $class($name);
+
+        $this->append($node);
+
+        return $node;
+    }
+
+    /**
+     * Appends a node definition.
+     *
+     * Usage:
+     *
+     *     $node = new ArrayNodeDefinition('name')
+     *         ->children()
+     *             ->scalarNode('foo')->end()
+     *             ->scalarNode('baz')->end()
+     *             ->append($this->getBarNodeDefinition())
+     *         ->end()
+     *     ;
+     *
+     * @return $this
+     */
+    public function append(NodeDefinition $node): static
+    {
+        if ($node instanceof BuilderAwareInterface) {
+            $builder = clone $this;
+            $builder->setParent(null);
+            $node->setBuilder($builder);
+        }
+
+        if (null !== $this->parent) {
+            $this->parent->append($node);
+            // Make this builder the node parent to allow for a fluid interface
+            $node->setParent($this);
+        }
+
+        return $this;
+    }
+
+    /**
+     * Adds or overrides a node Type.
+     *
+     * @param string $type  The name of the type
+     * @param string $class The fully qualified name the node definition class
+     *
+     * @return $this
+     */
+    public function setNodeClass(string $type, string $class): static
+    {
+        $this->nodeMapping[strtolower($type)] = $class;
+
+        return $this;
+    }
+
+    /**
+     * Returns the class name of the node definition.
+     *
+     * @throws \RuntimeException When the node type is not registered
+     * @throws \RuntimeException When the node class is not found
+     */
+    protected function getNodeClass(string $type): string
+    {
+        $type = strtolower($type);
+
+        if (!isset($this->nodeMapping[$type])) {
+            throw new \RuntimeException(sprintf('The node type "%s" is not registered.', $type));
+        }
+
+        $class = $this->nodeMapping[$type];
+
+        if (!class_exists($class)) {
+            throw new \RuntimeException(sprintf('The node class "%s" does not exist.', $class));
+        }
+
+        return $class;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/NodeDefinition.php

@@ -0,0 +1,336 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\BaseNode;
+use Symfony\Component\Config\Definition\Exception\InvalidDefinitionException;
+use Symfony\Component\Config\Definition\NodeInterface;
+
+/**
+ * This class provides a fluent interface for defining a node.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+abstract class NodeDefinition implements NodeParentInterface
+{
+    protected $name;
+    protected $normalization;
+    protected $validation;
+    protected $defaultValue;
+    protected $default = false;
+    protected $required = false;
+    protected $deprecation = [];
+    protected $merge;
+    protected $allowEmptyValue = true;
+    protected $nullEquivalent;
+    protected $trueEquivalent = true;
+    protected $falseEquivalent = false;
+    protected $pathSeparator = BaseNode::DEFAULT_PATH_SEPARATOR;
+    protected $parent;
+    protected $attributes = [];
+
+    public function __construct(?string $name, ?NodeParentInterface $parent = null)
+    {
+        $this->parent = $parent;
+        $this->name = $name;
+    }
+
+    /**
+     * Sets the parent node.
+     *
+     * @return $this
+     */
+    public function setParent(NodeParentInterface $parent): static
+    {
+        $this->parent = $parent;
+
+        return $this;
+    }
+
+    /**
+     * Sets info message.
+     *
+     * @return $this
+     */
+    public function info(string $info): static
+    {
+        return $this->attribute('info', $info);
+    }
+
+    /**
+     * Sets example configuration.
+     *
+     * @return $this
+     */
+    public function example(string|array $example): static
+    {
+        return $this->attribute('example', $example);
+    }
+
+    /**
+     * Sets an attribute on the node.
+     *
+     * @return $this
+     */
+    public function attribute(string $key, mixed $value): static
+    {
+        $this->attributes[$key] = $value;
+
+        return $this;
+    }
+
+    /**
+     * Returns the parent node.
+     */
+    public function end(): NodeParentInterface|NodeBuilder|self|ArrayNodeDefinition|VariableNodeDefinition|null
+    {
+        return $this->parent;
+    }
+
+    /**
+     * Creates the node.
+     */
+    public function getNode(bool $forceRootNode = false): NodeInterface
+    {
+        if ($forceRootNode) {
+            $this->parent = null;
+        }
+
+        if (isset($this->normalization)) {
+            $allowedTypes = [];
+            foreach ($this->normalization->before as $expr) {
+                $allowedTypes[] = $expr->allowedTypes;
+            }
+            $allowedTypes = array_unique($allowedTypes);
+            $this->normalization->before = ExprBuilder::buildExpressions($this->normalization->before);
+            $this->normalization->declaredTypes = $allowedTypes;
+        }
+
+        if (isset($this->validation)) {
+            $this->validation->rules = ExprBuilder::buildExpressions($this->validation->rules);
+        }
+
+        $node = $this->createNode();
+        if ($node instanceof BaseNode) {
+            $node->setAttributes($this->attributes);
+        }
+
+        return $node;
+    }
+
+    /**
+     * Sets the default value.
+     *
+     * @return $this
+     */
+    public function defaultValue(mixed $value): static
+    {
+        $this->default = true;
+        $this->defaultValue = $value;
+
+        return $this;
+    }
+
+    /**
+     * Sets the node as required.
+     *
+     * @return $this
+     */
+    public function isRequired(): static
+    {
+        $this->required = true;
+
+        return $this;
+    }
+
+    /**
+     * Sets the node as deprecated.
+     *
+     * @param string $package The name of the composer package that is triggering the deprecation
+     * @param string $version The version of the package that introduced the deprecation
+     * @param string $message the deprecation message to use
+     *
+     * You can use %node% and %path% placeholders in your message to display,
+     * respectively, the node name and its complete path
+     *
+     * @return $this
+     */
+    public function setDeprecated(string $package, string $version, string $message = 'The child node "%node%" at path "%path%" is deprecated.'): static
+    {
+        $this->deprecation = [
+            'package' => $package,
+            'version' => $version,
+            'message' => $message,
+        ];
+
+        return $this;
+    }
+
+    /**
+     * Sets the equivalent value used when the node contains null.
+     *
+     * @return $this
+     */
+    public function treatNullLike(mixed $value): static
+    {
+        $this->nullEquivalent = $value;
+
+        return $this;
+    }
+
+    /**
+     * Sets the equivalent value used when the node contains true.
+     *
+     * @return $this
+     */
+    public function treatTrueLike(mixed $value): static
+    {
+        $this->trueEquivalent = $value;
+
+        return $this;
+    }
+
+    /**
+     * Sets the equivalent value used when the node contains false.
+     *
+     * @return $this
+     */
+    public function treatFalseLike(mixed $value): static
+    {
+        $this->falseEquivalent = $value;
+
+        return $this;
+    }
+
+    /**
+     * Sets null as the default value.
+     *
+     * @return $this
+     */
+    public function defaultNull(): static
+    {
+        return $this->defaultValue(null);
+    }
+
+    /**
+     * Sets true as the default value.
+     *
+     * @return $this
+     */
+    public function defaultTrue(): static
+    {
+        return $this->defaultValue(true);
+    }
+
+    /**
+     * Sets false as the default value.
+     *
+     * @return $this
+     */
+    public function defaultFalse(): static
+    {
+        return $this->defaultValue(false);
+    }
+
+    /**
+     * Sets an expression to run before the normalization.
+     */
+    public function beforeNormalization(): ExprBuilder
+    {
+        return $this->normalization()->before();
+    }
+
+    /**
+     * Denies the node value being empty.
+     *
+     * @return $this
+     */
+    public function cannotBeEmpty(): static
+    {
+        $this->allowEmptyValue = false;
+
+        return $this;
+    }
+
+    /**
+     * Sets an expression to run for the validation.
+     *
+     * The expression receives the value of the node and must return it. It can
+     * modify it.
+     * An exception should be thrown when the node is not valid.
+     */
+    public function validate(): ExprBuilder
+    {
+        return $this->validation()->rule();
+    }
+
+    /**
+     * Sets whether the node can be overwritten.
+     *
+     * @return $this
+     */
+    public function cannotBeOverwritten(bool $deny = true): static
+    {
+        $this->merge()->denyOverwrite($deny);
+
+        return $this;
+    }
+
+    /**
+     * Gets the builder for validation rules.
+     */
+    protected function validation(): ValidationBuilder
+    {
+        return $this->validation ??= new ValidationBuilder($this);
+    }
+
+    /**
+     * Gets the builder for merging rules.
+     */
+    protected function merge(): MergeBuilder
+    {
+        return $this->merge ??= new MergeBuilder($this);
+    }
+
+    /**
+     * Gets the builder for normalization rules.
+     */
+    protected function normalization(): NormalizationBuilder
+    {
+        return $this->normalization ??= new NormalizationBuilder($this);
+    }
+
+    /**
+     * Instantiate and configure the node according to this definition.
+     *
+     * @throws InvalidDefinitionException When the definition is invalid
+     */
+    abstract protected function createNode(): NodeInterface;
+
+    /**
+     * Set PathSeparator to use.
+     *
+     * @return $this
+     */
+    public function setPathSeparator(string $separator): static
+    {
+        if ($this instanceof ParentNodeDefinitionInterface) {
+            foreach ($this->getChildNodeDefinitions() as $child) {
+                $child->setPathSeparator($separator);
+            }
+        }
+
+        $this->pathSeparator = $separator;
+
+        return $this;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/NodeParentInterface.php

@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * An interface that must be implemented by all node parents.
+ *
+ * @author Victor Berchet <victor@suumit.com>
+ */
+interface NodeParentInterface
+{
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/NormalizationBuilder.php

@@ -0,0 +1,61 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * This class builds normalization conditions.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class NormalizationBuilder
+{
+    protected $node;
+    public $before = [];
+    public $declaredTypes = [];
+    public $remappings = [];
+
+    public function __construct(NodeDefinition $node)
+    {
+        $this->node = $node;
+    }
+
+    /**
+     * Registers a key to remap to its plural form.
+     *
+     * @param string      $key    The key to remap
+     * @param string|null $plural The plural of the key in case of irregular plural
+     *
+     * @return $this
+     */
+    public function remap(string $key, ?string $plural = null): static
+    {
+        $this->remappings[] = [$key, null === $plural ? $key.'s' : $plural];
+
+        return $this;
+    }
+
+    /**
+     * Registers a closure to run before the normalization or an expression builder to build it if null is provided.
+     *
+     * @return ExprBuilder|$this
+     */
+    public function before(?\Closure $closure = null): ExprBuilder|static
+    {
+        if (null !== $closure) {
+            $this->before[] = $closure;
+
+            return $this;
+        }
+
+        return $this->before[] = new ExprBuilder($this->node);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/NumericNodeDefinition.php

@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\Exception\InvalidDefinitionException;
+
+/**
+ * Abstract class that contains common code of integer and float node definitions.
+ *
+ * @author David Jeanmonod <david.jeanmonod@gmail.com>
+ */
+abstract class NumericNodeDefinition extends ScalarNodeDefinition
+{
+    protected $min;
+    protected $max;
+
+    /**
+     * Ensures that the value is smaller than the given reference.
+     *
+     * @return $this
+     *
+     * @throws \InvalidArgumentException when the constraint is inconsistent
+     */
+    public function max(int|float $max): static
+    {
+        if (isset($this->min) && $this->min > $max) {
+            throw new \InvalidArgumentException(sprintf('You cannot define a max(%s) as you already have a min(%s).', $max, $this->min));
+        }
+        $this->max = $max;
+
+        return $this;
+    }
+
+    /**
+     * Ensures that the value is bigger than the given reference.
+     *
+     * @return $this
+     *
+     * @throws \InvalidArgumentException when the constraint is inconsistent
+     */
+    public function min(int|float $min): static
+    {
+        if (isset($this->max) && $this->max < $min) {
+            throw new \InvalidArgumentException(sprintf('You cannot define a min(%s) as you already have a max(%s).', $min, $this->max));
+        }
+        $this->min = $min;
+
+        return $this;
+    }
+
+    /**
+     * @throws InvalidDefinitionException
+     */
+    public function cannotBeEmpty(): static
+    {
+        throw new InvalidDefinitionException('->cannotBeEmpty() is not applicable to NumericNodeDefinition.');
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/ParentNodeDefinitionInterface.php

@@ -0,0 +1,49 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * An interface that must be implemented by nodes which can have children.
+ *
+ * @author Victor Berchet <victor@suumit.com>
+ */
+interface ParentNodeDefinitionInterface extends BuilderAwareInterface
+{
+    /**
+     * Returns a builder to add children nodes.
+     */
+    public function children(): NodeBuilder;
+
+    /**
+     * Appends a node definition.
+     *
+     * Usage:
+     *
+     *     $node = $parentNode
+     *         ->children()
+     *             ->scalarNode('foo')->end()
+     *             ->scalarNode('baz')->end()
+     *             ->append($this->getBarNodeDefinition())
+     *         ->end()
+     *     ;
+     *
+     * @return $this
+     */
+    public function append(NodeDefinition $node): static;
+
+    /**
+     * Gets the child node definitions.
+     *
+     * @return NodeDefinition[]
+     */
+    public function getChildNodeDefinitions(): array;
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/ScalarNodeDefinition.php

@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\ScalarNode;
+
+/**
+ * This class provides a fluent interface for defining a node.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ScalarNodeDefinition extends VariableNodeDefinition
+{
+    /**
+     * Instantiate a Node.
+     */
+    protected function instantiateNode(): ScalarNode
+    {
+        return new ScalarNode($this->name, $this->parent, $this->pathSeparator);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/TreeBuilder.php

@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\NodeInterface;
+
+/**
+ * This is the entry class for building a config tree.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class TreeBuilder implements NodeParentInterface
+{
+    /**
+     * @var NodeInterface|null
+     */
+    protected $tree;
+
+    /**
+     * @var NodeDefinition
+     */
+    protected $root;
+
+    public function __construct(string $name, string $type = 'array', ?NodeBuilder $builder = null)
+    {
+        $builder ??= new NodeBuilder();
+        $this->root = $builder->node($name, $type)->setParent($this);
+    }
+
+    /**
+     * @return NodeDefinition|ArrayNodeDefinition The root node (as an ArrayNodeDefinition when the type is 'array')
+     */
+    public function getRootNode(): NodeDefinition|ArrayNodeDefinition
+    {
+        return $this->root;
+    }
+
+    /**
+     * Builds the tree.
+     *
+     * @throws \RuntimeException
+     */
+    public function buildTree(): NodeInterface
+    {
+        return $this->tree ??= $this->root->getNode(true);
+    }
+
+    /**
+     * @return void
+     */
+    public function setPathSeparator(string $separator)
+    {
+        // unset last built as changing path separator changes all nodes
+        $this->tree = null;
+
+        $this->root->setPathSeparator($separator);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/ValidationBuilder.php

@@ -0,0 +1,44 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+/**
+ * This class builds validation conditions.
+ *
+ * @author Christophe Coevoet <stof@notk.org>
+ */
+class ValidationBuilder
+{
+    protected $node;
+    public $rules = [];
+
+    public function __construct(NodeDefinition $node)
+    {
+        $this->node = $node;
+    }
+
+    /**
+     * Registers a closure to run as normalization or an expression builder to build it if null is provided.
+     *
+     * @return ExprBuilder|$this
+     */
+    public function rule(?\Closure $closure = null): ExprBuilder|static
+    {
+        if (null !== $closure) {
+            $this->rules[] = $closure;
+
+            return $this;
+        }
+
+        return $this->rules[] = new ExprBuilder($this->node);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Builder/VariableNodeDefinition.php

@@ -0,0 +1,64 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Builder;
+
+use Symfony\Component\Config\Definition\NodeInterface;
+use Symfony\Component\Config\Definition\VariableNode;
+
+/**
+ * This class provides a fluent interface for defining a node.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class VariableNodeDefinition extends NodeDefinition
+{
+    /**
+     * Instantiate a Node.
+     */
+    protected function instantiateNode(): VariableNode
+    {
+        return new VariableNode($this->name, $this->parent, $this->pathSeparator);
+    }
+
+    protected function createNode(): NodeInterface
+    {
+        $node = $this->instantiateNode();
+
+        if (isset($this->normalization)) {
+            $node->setNormalizationClosures($this->normalization->before);
+        }
+
+        if (isset($this->merge)) {
+            $node->setAllowOverwrite($this->merge->allowOverwrite);
+        }
+
+        if (true === $this->default) {
+            $node->setDefaultValue($this->defaultValue);
+        }
+
+        $node->setAllowEmptyValue($this->allowEmptyValue);
+        $node->addEquivalentValue(null, $this->nullEquivalent);
+        $node->addEquivalentValue(true, $this->trueEquivalent);
+        $node->addEquivalentValue(false, $this->falseEquivalent);
+        $node->setRequired($this->required);
+
+        if ($this->deprecation) {
+            $node->setDeprecated($this->deprecation['package'], $this->deprecation['version'], $this->deprecation['message']);
+        }
+
+        if (isset($this->validation)) {
+            $node->setFinalValidationClosures($this->validation->rules);
+        }
+
+        return $node;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/ConfigurableInterface.php

@@ -0,0 +1,25 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Configurator\DefinitionConfigurator;
+
+/**
+ * @author Yonel Ceruto <yonelceruto@gmail.com>
+ */
+interface ConfigurableInterface
+{
+    /**
+     * Generates the configuration tree builder.
+     */
+    public function configure(DefinitionConfigurator $definition): void;
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Configuration.php

@@ -0,0 +1,45 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+use Symfony\Component\Config\Definition\Configurator\DefinitionConfigurator;
+use Symfony\Component\Config\Definition\Loader\DefinitionFileLoader;
+use Symfony\Component\Config\FileLocator;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+
+/**
+ * @author Yonel Ceruto <yonelceruto@gmail.com>
+ *
+ * @final
+ */
+class Configuration implements ConfigurationInterface
+{
+    public function __construct(
+        private ConfigurableInterface $subject,
+        private ?ContainerBuilder $container,
+        private string $alias,
+    ) {
+    }
+
+    public function getConfigTreeBuilder(): TreeBuilder
+    {
+        $treeBuilder = new TreeBuilder($this->alias);
+        $file = (new \ReflectionObject($this->subject))->getFileName();
+        $loader = new DefinitionFileLoader($treeBuilder, new FileLocator(\dirname($file)), $this->container);
+        $configurator = new DefinitionConfigurator($treeBuilder, $loader, $file, $file);
+
+        $this->subject->configure($configurator);
+
+        return $treeBuilder;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/ConfigurationInterface.php

@@ -0,0 +1,29 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+
+/**
+ * Configuration interface.
+ *
+ * @author Victor Berchet <victor@suumit.com>
+ */
+interface ConfigurationInterface
+{
+    /**
+     * Generates the configuration tree builder.
+     *
+     * @return TreeBuilder
+     */
+    public function getConfigTreeBuilder();
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Configurator/DefinitionConfigurator.php

@@ -0,0 +1,47 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Configurator;
+
+use Symfony\Component\Config\Definition\Builder\ArrayNodeDefinition;
+use Symfony\Component\Config\Definition\Builder\NodeDefinition;
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+use Symfony\Component\Config\Definition\Loader\DefinitionFileLoader;
+
+/**
+ * @author Yonel Ceruto <yonelceruto@gmail.com>
+ */
+class DefinitionConfigurator
+{
+    public function __construct(
+        private TreeBuilder $treeBuilder,
+        private DefinitionFileLoader $loader,
+        private string $path,
+        private string $file,
+    ) {
+    }
+
+    public function import(string $resource, ?string $type = null, bool $ignoreErrors = false): void
+    {
+        $this->loader->setCurrentDir(\dirname($this->path));
+        $this->loader->import($resource, $type, $ignoreErrors, $this->file);
+    }
+
+    public function rootNode(): NodeDefinition|ArrayNodeDefinition
+    {
+        return $this->treeBuilder->getRootNode();
+    }
+
+    public function setPathSeparator(string $separator): void
+    {
+        $this->treeBuilder->setPathSeparator($separator);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Dumper/XmlReferenceDumper.php

@@ -0,0 +1,299 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Dumper;
+
+use Symfony\Component\Config\Definition\ArrayNode;
+use Symfony\Component\Config\Definition\BaseNode;
+use Symfony\Component\Config\Definition\BooleanNode;
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+use Symfony\Component\Config\Definition\EnumNode;
+use Symfony\Component\Config\Definition\FloatNode;
+use Symfony\Component\Config\Definition\IntegerNode;
+use Symfony\Component\Config\Definition\NodeInterface;
+use Symfony\Component\Config\Definition\PrototypedArrayNode;
+use Symfony\Component\Config\Definition\ScalarNode;
+
+/**
+ * Dumps an XML reference configuration for the given configuration/node instance.
+ *
+ * @author Wouter J <waldio.webdesign@gmail.com>
+ */
+class XmlReferenceDumper
+{
+    private ?string $reference = null;
+
+    /**
+     * @return string
+     */
+    public function dump(ConfigurationInterface $configuration, ?string $namespace = null)
+    {
+        return $this->dumpNode($configuration->getConfigTreeBuilder()->buildTree(), $namespace);
+    }
+
+    /**
+     * @return string
+     */
+    public function dumpNode(NodeInterface $node, ?string $namespace = null)
+    {
+        $this->reference = '';
+        $this->writeNode($node, 0, true, $namespace);
+        $ref = $this->reference;
+        $this->reference = null;
+
+        return $ref;
+    }
+
+    private function writeNode(NodeInterface $node, int $depth = 0, bool $root = false, ?string $namespace = null): void
+    {
+        $rootName = ($root ? 'config' : $node->getName());
+        $rootNamespace = ($namespace ?: ($root ? 'http://example.org/schema/dic/'.$node->getName() : null));
+
+        // xml remapping
+        if ($node->getParent()) {
+            $remapping = array_filter($node->getParent()->getXmlRemappings(), fn (array $mapping) => $rootName === $mapping[1]);
+
+            if (\count($remapping)) {
+                [$singular] = current($remapping);
+                $rootName = $singular;
+            }
+        }
+        $rootName = str_replace('_', '-', $rootName);
+
+        $rootAttributes = [];
+        $rootAttributeComments = [];
+        $rootChildren = [];
+        $rootComments = [];
+
+        if ($node instanceof ArrayNode) {
+            $children = $node->getChildren();
+
+            // comments about the root node
+            if ($rootInfo = $node->getInfo()) {
+                $rootComments[] = $rootInfo;
+            }
+
+            if ($rootNamespace) {
+                $rootComments[] = 'Namespace: '.$rootNamespace;
+            }
+
+            // render prototyped nodes
+            if ($node instanceof PrototypedArrayNode) {
+                $prototype = $node->getPrototype();
+
+                $info = 'prototype';
+                if (null !== $prototype->getInfo()) {
+                    $info .= ': '.$prototype->getInfo();
+                }
+                array_unshift($rootComments, $info);
+
+                if ($key = $node->getKeyAttribute()) {
+                    $rootAttributes[$key] = str_replace('-', ' ', $rootName).' '.$key;
+                }
+
+                if ($prototype instanceof PrototypedArrayNode) {
+                    $prototype->setName($key ?? '');
+                    $children = [$key => $prototype];
+                } elseif ($prototype instanceof ArrayNode) {
+                    $children = $prototype->getChildren();
+                } else {
+                    if ($prototype->hasDefaultValue()) {
+                        $prototypeValue = $prototype->getDefaultValue();
+                    } else {
+                        $prototypeValue = match ($prototype::class) {
+                            ScalarNode::class => 'scalar value',
+                            FloatNode::class,
+                            IntegerNode::class => 'numeric value',
+                            BooleanNode::class => 'true|false',
+                            EnumNode::class => $prototype->getPermissibleValues('|'),
+                            default => 'value',
+                        };
+                    }
+                }
+            }
+
+            // get attributes and elements
+            foreach ($children as $child) {
+                if ($child instanceof ArrayNode) {
+                    // get elements
+                    $rootChildren[] = $child;
+
+                    continue;
+                }
+
+                // get attributes
+
+                // metadata
+                $name = str_replace('_', '-', $child->getName());
+                $value = '%%%%not_defined%%%%'; // use a string which isn't used in the normal world
+
+                // comments
+                $comments = [];
+                if ($child instanceof BaseNode && $info = $child->getInfo()) {
+                    $comments[] = $info;
+                }
+
+                if ($child instanceof BaseNode && $example = $child->getExample()) {
+                    $comments[] = 'Example: '.(\is_array($example) ? implode(', ', $example) : $example);
+                }
+
+                if ($child->isRequired()) {
+                    $comments[] = 'Required';
+                }
+
+                if ($child instanceof BaseNode && $child->isDeprecated()) {
+                    $deprecation = $child->getDeprecation($child->getName(), $node->getPath());
+                    $comments[] = sprintf('Deprecated (%s)', ($deprecation['package'] || $deprecation['version'] ? "Since {$deprecation['package']} {$deprecation['version']}: " : '').$deprecation['message']);
+                }
+
+                if ($child instanceof EnumNode) {
+                    $comments[] = 'One of '.$child->getPermissibleValues('; ');
+                }
+
+                if (\count($comments)) {
+                    $rootAttributeComments[$name] = implode(";\n", $comments);
+                }
+
+                // default values
+                if ($child->hasDefaultValue()) {
+                    $value = $child->getDefaultValue();
+                }
+
+                // append attribute
+                $rootAttributes[$name] = $value;
+            }
+        }
+
+        // render comments
+
+        // root node comment
+        if (\count($rootComments)) {
+            foreach ($rootComments as $comment) {
+                $this->writeLine('<!-- '.$comment.' -->', $depth);
+            }
+        }
+
+        // attribute comments
+        if (\count($rootAttributeComments)) {
+            foreach ($rootAttributeComments as $attrName => $comment) {
+                $commentDepth = $depth + 4 + \strlen($attrName) + 2;
+                $commentLines = explode("\n", $comment);
+                $multiline = (\count($commentLines) > 1);
+                $comment = implode(\PHP_EOL.str_repeat(' ', $commentDepth), $commentLines);
+
+                if ($multiline) {
+                    $this->writeLine('<!--', $depth);
+                    $this->writeLine($attrName.': '.$comment, $depth + 4);
+                    $this->writeLine('-->', $depth);
+                } else {
+                    $this->writeLine('<!-- '.$attrName.': '.$comment.' -->', $depth);
+                }
+            }
+        }
+
+        // render start tag + attributes
+        $rootIsVariablePrototype = isset($prototypeValue);
+        $rootIsEmptyTag = (0 === \count($rootChildren) && !$rootIsVariablePrototype);
+        $rootOpenTag = '<'.$rootName;
+        if (1 >= ($attributesCount = \count($rootAttributes))) {
+            if (1 === $attributesCount) {
+                $rootOpenTag .= sprintf(' %s="%s"', current(array_keys($rootAttributes)), $this->writeValue(current($rootAttributes)));
+            }
+
+            $rootOpenTag .= $rootIsEmptyTag ? ' />' : '>';
+
+            if ($rootIsVariablePrototype) {
+                $rootOpenTag .= $prototypeValue.'</'.$rootName.'>';
+            }
+
+            $this->writeLine($rootOpenTag, $depth);
+        } else {
+            $this->writeLine($rootOpenTag, $depth);
+
+            $i = 1;
+
+            foreach ($rootAttributes as $attrName => $attrValue) {
+                $attr = sprintf('%s="%s"', $attrName, $this->writeValue($attrValue));
+
+                $this->writeLine($attr, $depth + 4);
+
+                if ($attributesCount === $i++) {
+                    $this->writeLine($rootIsEmptyTag ? '/>' : '>', $depth);
+
+                    if ($rootIsVariablePrototype) {
+                        $rootOpenTag .= $prototypeValue.'</'.$rootName.'>';
+                    }
+                }
+            }
+        }
+
+        // render children tags
+        foreach ($rootChildren as $child) {
+            $this->writeLine('');
+            $this->writeNode($child, $depth + 4);
+        }
+
+        // render end tag
+        if (!$rootIsEmptyTag && !$rootIsVariablePrototype) {
+            $this->writeLine('');
+
+            $rootEndTag = '</'.$rootName.'>';
+            $this->writeLine($rootEndTag, $depth);
+        }
+    }
+
+    /**
+     * Outputs a single config reference line.
+     */
+    private function writeLine(string $text, int $indent = 0): void
+    {
+        $indent = \strlen($text) + $indent;
+        $format = '%'.$indent.'s';
+
+        $this->reference .= sprintf($format, $text).\PHP_EOL;
+    }
+
+    /**
+     * Renders the string conversion of the value.
+     */
+    private function writeValue(mixed $value): string
+    {
+        if ('%%%%not_defined%%%%' === $value) {
+            return '';
+        }
+
+        if (\is_string($value) || is_numeric($value)) {
+            return $value;
+        }
+
+        if (false === $value) {
+            return 'false';
+        }
+
+        if (true === $value) {
+            return 'true';
+        }
+
+        if (null === $value) {
+            return 'null';
+        }
+
+        if (empty($value)) {
+            return '';
+        }
+
+        if (\is_array($value)) {
+            return implode(',', $value);
+        }
+
+        return '';
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Dumper/YamlReferenceDumper.php

@@ -0,0 +1,254 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Dumper;
+
+use Symfony\Component\Config\Definition\ArrayNode;
+use Symfony\Component\Config\Definition\BaseNode;
+use Symfony\Component\Config\Definition\ConfigurationInterface;
+use Symfony\Component\Config\Definition\EnumNode;
+use Symfony\Component\Config\Definition\NodeInterface;
+use Symfony\Component\Config\Definition\PrototypedArrayNode;
+use Symfony\Component\Config\Definition\ScalarNode;
+use Symfony\Component\Yaml\Inline;
+
+/**
+ * Dumps a Yaml reference configuration for the given configuration/node instance.
+ *
+ * @author Kevin Bond <kevinbond@gmail.com>
+ */
+class YamlReferenceDumper
+{
+    private ?string $reference = null;
+
+    /**
+     * @return string
+     */
+    public function dump(ConfigurationInterface $configuration)
+    {
+        return $this->dumpNode($configuration->getConfigTreeBuilder()->buildTree());
+    }
+
+    /**
+     * @return string
+     */
+    public function dumpAtPath(ConfigurationInterface $configuration, string $path)
+    {
+        $rootNode = $node = $configuration->getConfigTreeBuilder()->buildTree();
+
+        foreach (explode('.', $path) as $step) {
+            if (!$node instanceof ArrayNode) {
+                throw new \UnexpectedValueException(sprintf('Unable to find node at path "%s.%s".', $rootNode->getName(), $path));
+            }
+
+            /** @var NodeInterface[] $children */
+            $children = $node instanceof PrototypedArrayNode ? $this->getPrototypeChildren($node) : $node->getChildren();
+
+            foreach ($children as $child) {
+                if ($child->getName() === $step) {
+                    $node = $child;
+
+                    continue 2;
+                }
+            }
+
+            throw new \UnexpectedValueException(sprintf('Unable to find node at path "%s.%s".', $rootNode->getName(), $path));
+        }
+
+        return $this->dumpNode($node);
+    }
+
+    /**
+     * @return string
+     */
+    public function dumpNode(NodeInterface $node)
+    {
+        $this->reference = '';
+        $this->writeNode($node);
+        $ref = $this->reference;
+        $this->reference = null;
+
+        return $ref;
+    }
+
+    private function writeNode(NodeInterface $node, ?NodeInterface $parentNode = null, int $depth = 0, bool $prototypedArray = false): void
+    {
+        $comments = [];
+        $default = '';
+        $defaultArray = null;
+        $children = null;
+        $example = null;
+        if ($node instanceof BaseNode) {
+            $example = $node->getExample();
+        }
+
+        // defaults
+        if ($node instanceof ArrayNode) {
+            $children = $node->getChildren();
+
+            if ($node instanceof PrototypedArrayNode) {
+                $children = $this->getPrototypeChildren($node);
+            }
+
+            if (!$children && !($node->hasDefaultValue() && \count($defaultArray = $node->getDefaultValue()))) {
+                $default = '[]';
+            }
+        } elseif ($node instanceof EnumNode) {
+            $comments[] = 'One of '.$node->getPermissibleValues('; ');
+            $default = $node->hasDefaultValue() ? Inline::dump($node->getDefaultValue()) : '~';
+        } else {
+            $default = '~';
+
+            if ($node->hasDefaultValue()) {
+                $default = $node->getDefaultValue();
+
+                if (\is_array($default)) {
+                    if (\count($defaultArray = $node->getDefaultValue())) {
+                        $default = '';
+                    } elseif (!\is_array($example)) {
+                        $default = '[]';
+                    }
+                } else {
+                    $default = Inline::dump($default);
+                }
+            }
+        }
+
+        // required?
+        if ($node->isRequired()) {
+            $comments[] = 'Required';
+        }
+
+        // deprecated?
+        if ($node instanceof BaseNode && $node->isDeprecated()) {
+            $deprecation = $node->getDeprecation($node->getName(), $parentNode ? $parentNode->getPath() : $node->getPath());
+            $comments[] = sprintf('Deprecated (%s)', ($deprecation['package'] || $deprecation['version'] ? "Since {$deprecation['package']} {$deprecation['version']}: " : '').$deprecation['message']);
+        }
+
+        // example
+        if ($example && !\is_array($example)) {
+            $comments[] = 'Example: '.Inline::dump($example);
+        }
+
+        $default = '' != (string) $default ? ' '.$default : '';
+        $comments = \count($comments) ? '# '.implode(', ', $comments) : '';
+
+        $key = $prototypedArray ? '-' : $node->getName().':';
+        $text = rtrim(sprintf('%-21s%s %s', $key, $default, $comments), ' ');
+
+        if ($node instanceof BaseNode && $info = $node->getInfo()) {
+            $this->writeLine('');
+            // indenting multi-line info
+            $info = str_replace("\n", sprintf("\n%".($depth * 4).'s# ', ' '), $info);
+            $this->writeLine('# '.$info, $depth * 4);
+        }
+
+        $this->writeLine($text, $depth * 4);
+
+        // output defaults
+        if ($defaultArray) {
+            $this->writeLine('');
+
+            $message = \count($defaultArray) > 1 ? 'Defaults' : 'Default';
+
+            $this->writeLine('# '.$message.':', $depth * 4 + 4);
+
+            $this->writeArray($defaultArray, $depth + 1);
+        }
+
+        if (\is_array($example)) {
+            $this->writeLine('');
+
+            $message = \count($example) > 1 ? 'Examples' : 'Example';
+
+            $this->writeLine('# '.$message.':', $depth * 4 + 4);
+
+            $this->writeArray(array_map(Inline::dump(...), $example), $depth + 1, true);
+        }
+
+        if ($children) {
+            foreach ($children as $childNode) {
+                $this->writeNode($childNode, $node, $depth + 1, $node instanceof PrototypedArrayNode && !$node->getKeyAttribute());
+            }
+        }
+    }
+
+    /**
+     * Outputs a single config reference line.
+     */
+    private function writeLine(string $text, int $indent = 0): void
+    {
+        $indent = \strlen($text) + $indent;
+        $format = '%'.$indent.'s';
+
+        $this->reference .= sprintf($format, $text)."\n";
+    }
+
+    private function writeArray(array $array, int $depth, bool $asComment = false): void
+    {
+        $isIndexed = array_is_list($array);
+
+        foreach ($array as $key => $value) {
+            if (\is_array($value)) {
+                $val = '';
+            } else {
+                $val = $value;
+            }
+
+            $prefix = $asComment ? '# ' : '';
+
+            if ($isIndexed) {
+                $this->writeLine($prefix.'- '.$val, $depth * 4);
+            } else {
+                $this->writeLine(sprintf('%s%-20s %s', $prefix, $key.':', $val), $depth * 4);
+            }
+
+            if (\is_array($value)) {
+                $this->writeArray($value, $depth + 1, $asComment);
+            }
+        }
+    }
+
+    private function getPrototypeChildren(PrototypedArrayNode $node): array
+    {
+        $prototype = $node->getPrototype();
+        $key = $node->getKeyAttribute();
+
+        // Do not expand prototype if it isn't an array node nor uses attribute as key
+        if (!$key && !$prototype instanceof ArrayNode) {
+            return $node->getChildren();
+        }
+
+        if ($prototype instanceof ArrayNode) {
+            $keyNode = new ArrayNode($key, $node);
+            $children = $prototype->getChildren();
+
+            if ($prototype instanceof PrototypedArrayNode && $prototype->getKeyAttribute()) {
+                $children = $this->getPrototypeChildren($prototype);
+            }
+
+            // add children
+            foreach ($children as $childNode) {
+                $keyNode->addChild($childNode);
+            }
+        } else {
+            $keyNode = new ScalarNode($key, $node);
+        }
+
+        $info = 'Prototype';
+        if (null !== $prototype->getInfo()) {
+            $info .= ': '.$prototype->getInfo();
+        }
+        $keyNode->setInfo($info);
+
+        return [$key => $keyNode];
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/EnumNode.php

@@ -0,0 +1,96 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+
+/**
+ * Node which only allows a finite set of values.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class EnumNode extends ScalarNode
+{
+    private array $values;
+
+    public function __construct(?string $name, ?NodeInterface $parent = null, array $values = [], string $pathSeparator = BaseNode::DEFAULT_PATH_SEPARATOR)
+    {
+        if (!$values) {
+            throw new \InvalidArgumentException('$values must contain at least one element.');
+        }
+
+        foreach ($values as $value) {
+            if (null === $value || \is_scalar($value)) {
+                continue;
+            }
+
+            if (!$value instanceof \UnitEnum) {
+                throw new \InvalidArgumentException(sprintf('"%s" only supports scalar, enum, or null values, "%s" given.', __CLASS__, get_debug_type($value)));
+            }
+
+            if ($value::class !== ($enumClass ??= $value::class)) {
+                throw new \InvalidArgumentException(sprintf('"%s" only supports one type of enum, "%s" and "%s" passed.', __CLASS__, $enumClass, $value::class));
+            }
+        }
+
+        parent::__construct($name, $parent, $pathSeparator);
+        $this->values = $values;
+    }
+
+    /**
+     * @return array
+     */
+    public function getValues()
+    {
+        return $this->values;
+    }
+
+    /**
+     * @internal
+     */
+    public function getPermissibleValues(string $separator): string
+    {
+        return implode($separator, array_unique(array_map(static function (mixed $value): string {
+            if (!$value instanceof \UnitEnum) {
+                return json_encode($value);
+            }
+
+            return ltrim(var_export($value, true), '\\');
+        }, $this->values)));
+    }
+
+    /**
+     * @return void
+     */
+    protected function validateType(mixed $value)
+    {
+        if ($value instanceof \UnitEnum) {
+            return;
+        }
+
+        parent::validateType($value);
+    }
+
+    protected function finalizeValue(mixed $value): mixed
+    {
+        $value = parent::finalizeValue($value);
+
+        if (!\in_array($value, $this->values, true)) {
+            $ex = new InvalidConfigurationException(sprintf('The value %s is not allowed for path "%s". Permissible values: %s', json_encode($value), $this->getPath(), $this->getPermissibleValues(', ')));
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+
+        return $value;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Exception/DuplicateKeyException.php

@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * This exception is thrown whenever the key of an array is not unique. This can
+ * only be the case if the configuration is coming from an XML file.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class DuplicateKeyException extends InvalidConfigurationException
+{
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Exception/Exception.php

@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * Base exception for all configuration exceptions.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class Exception extends \RuntimeException
+{
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Exception/ForbiddenOverwriteException.php

@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * This exception is thrown when a configuration path is overwritten from a
+ * subsequent configuration file, but the entry node specifically forbids this.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ForbiddenOverwriteException extends InvalidConfigurationException
+{
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Exception/InvalidConfigurationException.php

@@ -0,0 +1,52 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * A very general exception which can be thrown whenever non of the more specific
+ * exceptions is suitable.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class InvalidConfigurationException extends Exception
+{
+    private ?string $path = null;
+    private bool $containsHints = false;
+
+    /**
+     * @return void
+     */
+    public function setPath(string $path)
+    {
+        $this->path = $path;
+    }
+
+    public function getPath(): ?string
+    {
+        return $this->path;
+    }
+
+    /**
+     * Adds extra information that is suffixed to the original exception message.
+     *
+     * @return void
+     */
+    public function addHint(string $hint)
+    {
+        if (!$this->containsHints) {
+            $this->message .= "\nHint: ".$hint;
+            $this->containsHints = true;
+        } else {
+            $this->message .= ', '.$hint;
+        }
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Exception/InvalidDefinitionException.php

@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * Thrown when an error is detected in a node Definition.
+ *
+ * @author Victor Berchet <victor.berchet@suumit.com>
+ */
+class InvalidDefinitionException extends Exception
+{
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Exception/InvalidTypeException.php

@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * This exception is thrown if an invalid type is encountered.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class InvalidTypeException extends InvalidConfigurationException
+{
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Exception/UnsetKeyException.php

@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Exception;
+
+/**
+ * This exception is usually not encountered by the end-user, but only used
+ * internally to signal the parent scope to unset a key.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class UnsetKeyException extends Exception
+{
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/FloatNode.php

@@ -0,0 +1,48 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+
+/**
+ * This node represents a float value in the config tree.
+ *
+ * @author Jeanmonod David <david.jeanmonod@gmail.com>
+ */
+class FloatNode extends NumericNode
+{
+    /**
+     * @return void
+     */
+    protected function validateType(mixed $value)
+    {
+        // Integers are also accepted, we just cast them
+        if (\is_int($value)) {
+            $value = (float) $value;
+        }
+
+        if (!\is_float($value)) {
+            $ex = new InvalidTypeException(sprintf('Invalid type for path "%s". Expected "float", but got "%s".', $this->getPath(), get_debug_type($value)));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+    }
+
+    protected function getValidPlaceholderTypes(): array
+    {
+        return ['float'];
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/IntegerNode.php

@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+
+/**
+ * This node represents an integer value in the config tree.
+ *
+ * @author Jeanmonod David <david.jeanmonod@gmail.com>
+ */
+class IntegerNode extends NumericNode
+{
+    /**
+     * @return void
+     */
+    protected function validateType(mixed $value)
+    {
+        if (!\is_int($value)) {
+            $ex = new InvalidTypeException(sprintf('Invalid type for path "%s". Expected "int", but got "%s".', $this->getPath(), get_debug_type($value)));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+    }
+
+    protected function getValidPlaceholderTypes(): array
+    {
+        return ['int'];
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Loader/DefinitionFileLoader.php

@@ -0,0 +1,103 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition\Loader;
+
+use Symfony\Component\Config\Definition\Builder\TreeBuilder;
+use Symfony\Component\Config\Definition\Configurator\DefinitionConfigurator;
+use Symfony\Component\Config\FileLocatorInterface;
+use Symfony\Component\Config\Loader\FileLoader;
+use Symfony\Component\DependencyInjection\ContainerBuilder;
+
+/**
+ * DefinitionFileLoader loads config definitions from a PHP file.
+ *
+ * The PHP file is required.
+ *
+ * @author Yonel Ceruto <yonelceruto@gmail.com>
+ */
+class DefinitionFileLoader extends FileLoader
+{
+    public function __construct(
+        private TreeBuilder $treeBuilder,
+        FileLocatorInterface $locator,
+        private ?ContainerBuilder $container = null,
+    ) {
+        parent::__construct($locator);
+    }
+
+    public function load(mixed $resource, ?string $type = null): mixed
+    {
+        // the loader variable is exposed to the included file below
+        $loader = $this;
+
+        $path = $this->locator->locate($resource);
+        $this->setCurrentDir(\dirname($path));
+        $this->container?->fileExists($path);
+
+        // the closure forbids access to the private scope in the included file
+        $load = \Closure::bind(static function ($file) use ($loader) {
+            return include $file;
+        }, null, ProtectedDefinitionFileLoader::class);
+
+        $callback = $load($path);
+
+        if (\is_object($callback) && \is_callable($callback)) {
+            $this->executeCallback($callback, new DefinitionConfigurator($this->treeBuilder, $this, $path, $resource), $path);
+        }
+
+        return null;
+    }
+
+    public function supports(mixed $resource, ?string $type = null): bool
+    {
+        if (!\is_string($resource)) {
+            return false;
+        }
+
+        if (null === $type && 'php' === pathinfo($resource, \PATHINFO_EXTENSION)) {
+            return true;
+        }
+
+        return 'php' === $type;
+    }
+
+    private function executeCallback(callable $callback, DefinitionConfigurator $configurator, string $path): void
+    {
+        $callback = $callback(...);
+
+        $arguments = [];
+        $r = new \ReflectionFunction($callback);
+
+        foreach ($r->getParameters() as $parameter) {
+            $reflectionType = $parameter->getType();
+
+            if (!$reflectionType instanceof \ReflectionNamedType) {
+                throw new \InvalidArgumentException(sprintf('Could not resolve argument "$%s" for "%s". You must typehint it (for example with "%s").', $parameter->getName(), $path, DefinitionConfigurator::class));
+            }
+
+            $arguments[] = match ($reflectionType->getName()) {
+                DefinitionConfigurator::class => $configurator,
+                TreeBuilder::class => $this->treeBuilder,
+                FileLoader::class, self::class => $this,
+            };
+        }
+
+        $callback(...$arguments);
+    }
+}
+
+/**
+ * @internal
+ */
+final class ProtectedDefinitionFileLoader extends DefinitionFileLoader
+{
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/NodeInterface.php

@@ -0,0 +1,77 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\ForbiddenOverwriteException;
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+
+/**
+ * Common Interface among all nodes.
+ *
+ * In most cases, it is better to inherit from BaseNode instead of implementing
+ * this interface yourself.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+interface NodeInterface
+{
+    /**
+     * Returns the name of the node.
+     */
+    public function getName(): string;
+
+    /**
+     * Returns the path of the node.
+     */
+    public function getPath(): string;
+
+    /**
+     * Returns true when the node is required.
+     */
+    public function isRequired(): bool;
+
+    /**
+     * Returns true when the node has a default value.
+     */
+    public function hasDefaultValue(): bool;
+
+    /**
+     * Returns the default value of the node.
+     *
+     * @throws \RuntimeException if the node has no default value
+     */
+    public function getDefaultValue(): mixed;
+
+    /**
+     * Normalizes a value.
+     *
+     * @throws InvalidTypeException if the value type is invalid
+     */
+    public function normalize(mixed $value): mixed;
+
+    /**
+     * Merges two values together.
+     *
+     * @throws ForbiddenOverwriteException if the configuration path cannot be overwritten
+     * @throws InvalidTypeException        if the value type is invalid
+     */
+    public function merge(mixed $leftSide, mixed $rightSide): mixed;
+
+    /**
+     * Finalizes a value.
+     *
+     * @throws InvalidTypeException          if the value type is invalid
+     * @throws InvalidConfigurationException if the value is invalid configuration
+     */
+    public function finalize(mixed $value): mixed;
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/NumericNode.php

@@ -0,0 +1,58 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+
+/**
+ * This node represents a numeric value in the config tree.
+ *
+ * @author David Jeanmonod <david.jeanmonod@gmail.com>
+ */
+class NumericNode extends ScalarNode
+{
+    protected $min;
+    protected $max;
+
+    public function __construct(?string $name, ?NodeInterface $parent = null, int|float|null $min = null, int|float|null $max = null, string $pathSeparator = BaseNode::DEFAULT_PATH_SEPARATOR)
+    {
+        parent::__construct($name, $parent, $pathSeparator);
+        $this->min = $min;
+        $this->max = $max;
+    }
+
+    protected function finalizeValue(mixed $value): mixed
+    {
+        $value = parent::finalizeValue($value);
+
+        $errorMsg = null;
+        if (isset($this->min) && $value < $this->min) {
+            $errorMsg = sprintf('The value %s is too small for path "%s". Should be greater than or equal to %s', $value, $this->getPath(), $this->min);
+        }
+        if (isset($this->max) && $value > $this->max) {
+            $errorMsg = sprintf('The value %s is too big for path "%s". Should be less than or equal to %s', $value, $this->getPath(), $this->max);
+        }
+        if (isset($errorMsg)) {
+            $ex = new InvalidConfigurationException($errorMsg);
+            $ex->setPath($this->getPath());
+            throw $ex;
+        }
+
+        return $value;
+    }
+
+    protected function isValueEmpty(mixed $value): bool
+    {
+        // a numeric value cannot be empty
+        return false;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/Processor.php

@@ -0,0 +1,89 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+/**
+ * This class is the entry point for config normalization/merging/finalization.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ *
+ * @final
+ */
+class Processor
+{
+    /**
+     * Processes an array of configurations.
+     *
+     * @param array $configs An array of configuration items to process
+     */
+    public function process(NodeInterface $configTree, array $configs): array
+    {
+        $currentConfig = [];
+        foreach ($configs as $config) {
+            $config = $configTree->normalize($config);
+            $currentConfig = $configTree->merge($currentConfig, $config);
+        }
+
+        return $configTree->finalize($currentConfig);
+    }
+
+    /**
+     * Processes an array of configurations.
+     *
+     * @param array $configs An array of configuration items to process
+     */
+    public function processConfiguration(ConfigurationInterface $configuration, array $configs): array
+    {
+        return $this->process($configuration->getConfigTreeBuilder()->buildTree(), $configs);
+    }
+
+    /**
+     * Normalizes a configuration entry.
+     *
+     * This method returns a normalize configuration array for a given key
+     * to remove the differences due to the original format (YAML and XML mainly).
+     *
+     * Here is an example.
+     *
+     * The configuration in XML:
+     *
+     * <twig:extension>twig.extension.foo</twig:extension>
+     * <twig:extension>twig.extension.bar</twig:extension>
+     *
+     * And the same configuration in YAML:
+     *
+     * extensions: ['twig.extension.foo', 'twig.extension.bar']
+     *
+     * @param array       $config A config array
+     * @param string      $key    The key to normalize
+     * @param string|null $plural The plural form of the key if it is irregular
+     */
+    public static function normalizeConfig(array $config, string $key, ?string $plural = null): array
+    {
+        $plural ??= $key.'s';
+
+        if (isset($config[$plural])) {
+            return $config[$plural];
+        }
+
+        if (isset($config[$key])) {
+            if (\is_string($config[$key]) || !\is_int(key($config[$key]))) {
+                // only one
+                return [$config[$key]];
+            }
+
+            return $config[$key];
+        }
+
+        return [];
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/PrototypeNodeInterface.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+/**
+ * This interface must be implemented by nodes which can be used as prototypes.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+interface PrototypeNodeInterface extends NodeInterface
+{
+    /**
+     * Sets the name of the node.
+     *
+     * @return void
+     */
+    public function setName(string $name);
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/PrototypedArrayNode.php

@@ -0,0 +1,343 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\DuplicateKeyException;
+use Symfony\Component\Config\Definition\Exception\Exception;
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+use Symfony\Component\Config\Definition\Exception\UnsetKeyException;
+
+/**
+ * Represents a prototyped Array node in the config tree.
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class PrototypedArrayNode extends ArrayNode
+{
+    protected $prototype;
+    protected $keyAttribute;
+    protected $removeKeyAttribute = false;
+    protected $minNumberOfElements = 0;
+    protected $defaultValue = [];
+    protected $defaultChildren;
+    /**
+     * @var NodeInterface[] An array of the prototypes of the simplified value children
+     */
+    private array $valuePrototypes = [];
+
+    /**
+     * Sets the minimum number of elements that a prototype based node must
+     * contain. By default this is zero, meaning no elements.
+     *
+     * @return void
+     */
+    public function setMinNumberOfElements(int $number)
+    {
+        $this->minNumberOfElements = $number;
+    }
+
+    /**
+     * Sets the attribute which value is to be used as key.
+     *
+     * This is useful when you have an indexed array that should be an
+     * associative array. You can select an item from within the array
+     * to be the key of the particular item. For example, if "id" is the
+     * "key", then:
+     *
+     *     [
+     *         ['id' => 'my_name', 'foo' => 'bar'],
+     *     ];
+     *
+     *  becomes
+     *
+     *      [
+     *          'my_name' => ['foo' => 'bar'],
+     *      ];
+     *
+     * If you'd like "'id' => 'my_name'" to still be present in the resulting
+     * array, then you can set the second argument of this method to false.
+     *
+     * @param string $attribute The name of the attribute which value is to be used as a key
+     * @param bool   $remove    Whether or not to remove the key
+     *
+     * @return void
+     */
+    public function setKeyAttribute(string $attribute, bool $remove = true)
+    {
+        $this->keyAttribute = $attribute;
+        $this->removeKeyAttribute = $remove;
+    }
+
+    /**
+     * Retrieves the name of the attribute which value should be used as key.
+     */
+    public function getKeyAttribute(): ?string
+    {
+        return $this->keyAttribute;
+    }
+
+    /**
+     * Sets the default value of this node.
+     *
+     * @return void
+     */
+    public function setDefaultValue(array $value)
+    {
+        $this->defaultValue = $value;
+    }
+
+    public function hasDefaultValue(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Adds default children when none are set.
+     *
+     * @param int|string|array|null $children The number of children|The child name|The children names to be added
+     *
+     * @return void
+     */
+    public function setAddChildrenIfNoneSet(int|string|array|null $children = ['defaults'])
+    {
+        if (null === $children) {
+            $this->defaultChildren = ['defaults'];
+        } else {
+            $this->defaultChildren = \is_int($children) && $children > 0 ? range(1, $children) : (array) $children;
+        }
+    }
+
+    /**
+     * The default value could be either explicited or derived from the prototype
+     * default value.
+     */
+    public function getDefaultValue(): mixed
+    {
+        if (null !== $this->defaultChildren) {
+            $default = $this->prototype->hasDefaultValue() ? $this->prototype->getDefaultValue() : [];
+            $defaults = [];
+            foreach (array_values($this->defaultChildren) as $i => $name) {
+                $defaults[null === $this->keyAttribute ? $i : $name] = $default;
+            }
+
+            return $defaults;
+        }
+
+        return $this->defaultValue;
+    }
+
+    /**
+     * Sets the node prototype.
+     *
+     * @return void
+     */
+    public function setPrototype(PrototypeNodeInterface $node)
+    {
+        $this->prototype = $node;
+    }
+
+    /**
+     * Retrieves the prototype.
+     */
+    public function getPrototype(): PrototypeNodeInterface
+    {
+        return $this->prototype;
+    }
+
+    /**
+     * Disable adding concrete children for prototyped nodes.
+     *
+     * @return never
+     *
+     * @throws Exception
+     */
+    public function addChild(NodeInterface $node)
+    {
+        throw new Exception('A prototyped array node cannot have concrete children.');
+    }
+
+    protected function finalizeValue(mixed $value): mixed
+    {
+        if (false === $value) {
+            throw new UnsetKeyException(sprintf('Unsetting key for path "%s", value: %s.', $this->getPath(), json_encode($value)));
+        }
+
+        foreach ($value as $k => $v) {
+            $prototype = $this->getPrototypeForChild($k);
+            try {
+                $value[$k] = $prototype->finalize($v);
+            } catch (UnsetKeyException) {
+                unset($value[$k]);
+            }
+        }
+
+        if (\count($value) < $this->minNumberOfElements) {
+            $ex = new InvalidConfigurationException(sprintf('The path "%s" should have at least %d element(s) defined.', $this->getPath(), $this->minNumberOfElements));
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+
+        return $value;
+    }
+
+    /**
+     * @throws DuplicateKeyException
+     */
+    protected function normalizeValue(mixed $value): mixed
+    {
+        if (false === $value) {
+            return $value;
+        }
+
+        $value = $this->remapXml($value);
+
+        $isList = array_is_list($value);
+        $normalized = [];
+        foreach ($value as $k => $v) {
+            if (null !== $this->keyAttribute && \is_array($v)) {
+                if (!isset($v[$this->keyAttribute]) && \is_int($k) && $isList) {
+                    $ex = new InvalidConfigurationException(sprintf('The attribute "%s" must be set for path "%s".', $this->keyAttribute, $this->getPath()));
+                    $ex->setPath($this->getPath());
+
+                    throw $ex;
+                } elseif (isset($v[$this->keyAttribute])) {
+                    $k = $v[$this->keyAttribute];
+
+                    if (\is_float($k)) {
+                        $k = var_export($k, true);
+                    }
+
+                    // remove the key attribute when required
+                    if ($this->removeKeyAttribute) {
+                        unset($v[$this->keyAttribute]);
+                    }
+
+                    // if only "value" is left
+                    if (array_keys($v) === ['value']) {
+                        $v = $v['value'];
+                        if ($this->prototype instanceof ArrayNode && ($children = $this->prototype->getChildren()) && \array_key_exists('value', $children)) {
+                            $valuePrototype = current($this->valuePrototypes) ?: clone $children['value'];
+                            $valuePrototype->parent = $this;
+                            $originalClosures = $this->prototype->normalizationClosures;
+                            if (\is_array($originalClosures)) {
+                                $valuePrototypeClosures = $valuePrototype->normalizationClosures;
+                                $valuePrototype->normalizationClosures = \is_array($valuePrototypeClosures) ? array_merge($originalClosures, $valuePrototypeClosures) : $originalClosures;
+                            }
+                            $this->valuePrototypes[$k] = $valuePrototype;
+                        }
+                    }
+                }
+
+                if (\array_key_exists($k, $normalized)) {
+                    $ex = new DuplicateKeyException(sprintf('Duplicate key "%s" for path "%s".', $k, $this->getPath()));
+                    $ex->setPath($this->getPath());
+
+                    throw $ex;
+                }
+            }
+
+            $prototype = $this->getPrototypeForChild($k);
+            if (null !== $this->keyAttribute || !$isList) {
+                $normalized[$k] = $prototype->normalize($v);
+            } else {
+                $normalized[] = $prototype->normalize($v);
+            }
+        }
+
+        return $normalized;
+    }
+
+    protected function mergeValues(mixed $leftSide, mixed $rightSide): mixed
+    {
+        if (false === $rightSide) {
+            // if this is still false after the last config has been merged the
+            // finalization pass will take care of removing this key entirely
+            return false;
+        }
+
+        if (false === $leftSide || !$this->performDeepMerging) {
+            return $rightSide;
+        }
+
+        $isList = array_is_list($rightSide);
+        foreach ($rightSide as $k => $v) {
+            // prototype, and key is irrelevant there are no named keys, append the element
+            if (null === $this->keyAttribute && $isList) {
+                $leftSide[] = $v;
+                continue;
+            }
+
+            // no conflict
+            if (!\array_key_exists($k, $leftSide)) {
+                if (!$this->allowNewKeys) {
+                    $ex = new InvalidConfigurationException(sprintf('You are not allowed to define new elements for path "%s". Please define all elements for this path in one config file.', $this->getPath()));
+                    $ex->setPath($this->getPath());
+
+                    throw $ex;
+                }
+
+                $leftSide[$k] = $v;
+                continue;
+            }
+
+            $prototype = $this->getPrototypeForChild($k);
+            $leftSide[$k] = $prototype->merge($leftSide[$k], $v);
+        }
+
+        return $leftSide;
+    }
+
+    /**
+     * Returns a prototype for the child node that is associated to $key in the value array.
+     * For general child nodes, this will be $this->prototype.
+     * But if $this->removeKeyAttribute is true and there are only two keys in the child node:
+     * one is same as this->keyAttribute and the other is 'value', then the prototype will be different.
+     *
+     * For example, assume $this->keyAttribute is 'name' and the value array is as follows:
+     *
+     *     [
+     *         [
+     *             'name' => 'name001',
+     *             'value' => 'value001'
+     *         ]
+     *     ]
+     *
+     * Now, the key is 0 and the child node is:
+     *
+     *     [
+     *        'name' => 'name001',
+     *        'value' => 'value001'
+     *     ]
+     *
+     * When normalizing the value array, the 'name' element will removed from the child node
+     * and its value becomes the new key of the child node:
+     *
+     *     [
+     *         'name001' => ['value' => 'value001']
+     *     ]
+     *
+     * Now only 'value' element is left in the child node which can be further simplified into a string:
+     *
+     *     ['name001' => 'value001']
+     *
+     * Now, the key becomes 'name001' and the child node becomes 'value001' and
+     * the prototype of child node 'name001' should be a ScalarNode instead of an ArrayNode instance.
+     */
+    private function getPrototypeForChild(string $key): mixed
+    {
+        $prototype = $this->valuePrototypes[$key] ?? $this->prototype;
+        $prototype->setName($key);
+
+        return $prototype;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/ScalarNode.php

@@ -0,0 +1,61 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidTypeException;
+
+/**
+ * This node represents a scalar value in the config tree.
+ *
+ * The following values are considered scalars:
+ *   * booleans
+ *   * strings
+ *   * null
+ *   * integers
+ *   * floats
+ *
+ * @author Johannes M. Schmitt <schmittjoh@gmail.com>
+ */
+class ScalarNode extends VariableNode
+{
+    /**
+     * @return void
+     */
+    protected function validateType(mixed $value)
+    {
+        if (!\is_scalar($value) && null !== $value) {
+            $ex = new InvalidTypeException(sprintf('Invalid type for path "%s". Expected "scalar", but got "%s".', $this->getPath(), get_debug_type($value)));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+    }
+
+    protected function isValueEmpty(mixed $value): bool
+    {
+        // assume environment variables are never empty (which in practice is likely to be true during runtime)
+        // not doing so breaks many configs that are valid today
+        if ($this->isHandlingPlaceholder()) {
+            return false;
+        }
+
+        return null === $value || '' === $value;
+    }
+
+    protected function getValidPlaceholderTypes(): array
+    {
+        return ['bool', 'int', 'float', 'string'];
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Definition/VariableNode.php

@@ -0,0 +1,128 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Definition;
+
+use Symfony\Component\Config\Definition\Exception\InvalidConfigurationException;
+
+/**
+ * This node represents a value of variable type in the config tree.
+ *
+ * This node is intended for values of arbitrary type.
+ * Any PHP type is accepted as a value.
+ *
+ * @author Jeremy Mikola <jmikola@gmail.com>
+ */
+class VariableNode extends BaseNode implements PrototypeNodeInterface
+{
+    protected $defaultValueSet = false;
+    protected $defaultValue;
+    protected $allowEmptyValue = true;
+
+    /**
+     * @return void
+     */
+    public function setDefaultValue(mixed $value)
+    {
+        $this->defaultValueSet = true;
+        $this->defaultValue = $value;
+    }
+
+    public function hasDefaultValue(): bool
+    {
+        return $this->defaultValueSet;
+    }
+
+    public function getDefaultValue(): mixed
+    {
+        $v = $this->defaultValue;
+
+        return $v instanceof \Closure ? $v() : $v;
+    }
+
+    /**
+     * Sets if this node is allowed to have an empty value.
+     *
+     * @param bool $boolean True if this entity will accept empty values
+     *
+     * @return void
+     */
+    public function setAllowEmptyValue(bool $boolean)
+    {
+        $this->allowEmptyValue = $boolean;
+    }
+
+    /**
+     * @return void
+     */
+    public function setName(string $name)
+    {
+        $this->name = $name;
+    }
+
+    /**
+     * @return void
+     */
+    protected function validateType(mixed $value)
+    {
+    }
+
+    protected function finalizeValue(mixed $value): mixed
+    {
+        // deny environment variables only when using custom validators
+        // this avoids ever passing an empty value to final validation closures
+        if (!$this->allowEmptyValue && $this->isHandlingPlaceholder() && $this->finalValidationClosures) {
+            $e = new InvalidConfigurationException(sprintf('The path "%s" cannot contain an environment variable when empty values are not allowed by definition and are validated.', $this->getPath()));
+            if ($hint = $this->getInfo()) {
+                $e->addHint($hint);
+            }
+            $e->setPath($this->getPath());
+
+            throw $e;
+        }
+
+        if (!$this->allowEmptyValue && $this->isValueEmpty($value)) {
+            $ex = new InvalidConfigurationException(sprintf('The path "%s" cannot contain an empty value, but got %s.', $this->getPath(), json_encode($value)));
+            if ($hint = $this->getInfo()) {
+                $ex->addHint($hint);
+            }
+            $ex->setPath($this->getPath());
+
+            throw $ex;
+        }
+
+        return $value;
+    }
+
+    protected function normalizeValue(mixed $value): mixed
+    {
+        return $value;
+    }
+
+    protected function mergeValues(mixed $leftSide, mixed $rightSide): mixed
+    {
+        return $rightSide;
+    }
+
+    /**
+     * Evaluates if the given value is to be treated as empty.
+     *
+     * By default, PHP's empty() function is used to test for emptiness. This
+     * method may be overridden by subtypes to better match their understanding
+     * of empty data.
+     *
+     * @see finalizeValue()
+     */
+    protected function isValueEmpty(mixed $value): bool
+    {
+        return empty($value);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Exception/FileLoaderImportCircularReferenceException.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Exception;
+
+/**
+ * Exception class for when a circular reference is detected when importing resources.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class FileLoaderImportCircularReferenceException extends LoaderLoadException
+{
+    public function __construct(array $resources, int $code = 0, ?\Throwable $previous = null)
+    {
+        $message = sprintf('Circular reference detected in "%s" ("%s" > "%s").', $this->varToString($resources[0]), implode('" > "', $resources), $resources[0]);
+
+        \Exception::__construct($message, $code, $previous);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Exception/FileLocatorFileNotFoundException.php

@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Exception;
+
+/**
+ * File locator exception if a file does not exist.
+ *
+ * @author Leo Feyer <https://github.com/leofeyer>
+ */
+class FileLocatorFileNotFoundException extends \InvalidArgumentException
+{
+    private array $paths;
+
+    public function __construct(string $message = '', int $code = 0, ?\Throwable $previous = null, array $paths = [])
+    {
+        parent::__construct($message, $code, $previous);
+
+        $this->paths = $paths;
+    }
+
+    /**
+     * @return array
+     */
+    public function getPaths()
+    {
+        return $this->paths;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Exception/LoaderLoadException.php

@@ -0,0 +1,115 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Exception;
+
+/**
+ * Exception class for when a resource cannot be loaded or imported.
+ *
+ * @author Ryan Weaver <ryan@thatsquality.com>
+ */
+class LoaderLoadException extends \Exception
+{
+    /**
+     * @param mixed           $resource       The resource that could not be imported
+     * @param string|null     $sourceResource The original resource importing the new resource
+     * @param int             $code           The error code
+     * @param \Throwable|null $previous       A previous exception
+     * @param string|null     $type           The type of resource
+     */
+    public function __construct(mixed $resource, ?string $sourceResource = null, int $code = 0, ?\Throwable $previous = null, ?string $type = null)
+    {
+        if (!\is_string($resource)) {
+            try {
+                $resource = json_encode($resource, \JSON_THROW_ON_ERROR);
+            } catch (\JsonException) {
+                $resource = sprintf('resource of type "%s"', get_debug_type($resource));
+            }
+        }
+
+        $message = '';
+        if ($previous) {
+            // Include the previous exception, to help the user see what might be the underlying cause
+
+            // Trim the trailing period of the previous message. We only want 1 period remove so no rtrim...
+            if (str_ends_with($previous->getMessage(), '.')) {
+                $trimmedMessage = substr($previous->getMessage(), 0, -1);
+                $message .= sprintf('%s', $trimmedMessage).' in ';
+            } else {
+                $message .= sprintf('%s', $previous->getMessage()).' in ';
+            }
+            $message .= $resource.' ';
+
+            // show tweaked trace to complete the human readable sentence
+            if (null === $sourceResource) {
+                $message .= sprintf('(which is loaded in resource "%s")', $resource);
+            } else {
+                $message .= sprintf('(which is being imported from "%s")', $sourceResource);
+            }
+            $message .= '.';
+
+        // if there's no previous message, present it the default way
+        } elseif (null === $sourceResource) {
+            $message .= sprintf('Cannot load resource "%s".', $resource);
+        } else {
+            $message .= sprintf('Cannot import resource "%s" from "%s".', $resource, $sourceResource);
+        }
+
+        // Is the resource located inside a bundle?
+        if ('@' === $resource[0]) {
+            $parts = explode(\DIRECTORY_SEPARATOR, $resource);
+            $bundle = substr($parts[0], 1);
+            $message .= sprintf(' Make sure the "%s" bundle is correctly registered and loaded in the application kernel class.', $bundle);
+            $message .= sprintf(' If the bundle is registered, make sure the bundle path "%s" is not empty.', $resource);
+        } elseif (null !== $type) {
+            $message .= sprintf(' Make sure there is a loader supporting the "%s" type.', $type);
+        }
+
+        parent::__construct($message, $code, $previous);
+    }
+
+    /**
+     * @return string
+     */
+    protected function varToString(mixed $var)
+    {
+        if (\is_object($var)) {
+            return sprintf('Object(%s)', $var::class);
+        }
+
+        if (\is_array($var)) {
+            $a = [];
+            foreach ($var as $k => $v) {
+                $a[] = sprintf('%s => %s', $k, $this->varToString($v));
+            }
+
+            return sprintf('Array(%s)', implode(', ', $a));
+        }
+
+        if (\is_resource($var)) {
+            return sprintf('Resource(%s)', get_resource_type($var));
+        }
+
+        if (null === $var) {
+            return 'null';
+        }
+
+        if (false === $var) {
+            return 'false';
+        }
+
+        if (true === $var) {
+            return 'true';
+        }
+
+        return (string) $var;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/FileLocator.php

@@ -0,0 +1,97 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+use Symfony\Component\Config\Exception\FileLocatorFileNotFoundException;
+
+/**
+ * FileLocator uses an array of pre-defined paths to find files.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class FileLocator implements FileLocatorInterface
+{
+    protected $paths;
+
+    /**
+     * @param string|string[] $paths A path or an array of paths where to look for resources
+     */
+    public function __construct(string|array $paths = [])
+    {
+        $this->paths = (array) $paths;
+    }
+
+    /**
+     * @return string|string[]
+     *
+     * @psalm-return ($first is true ? string : string[])
+     */
+    public function locate(string $name, ?string $currentPath = null, bool $first = true)
+    {
+        if ('' === $name) {
+            throw new \InvalidArgumentException('An empty file name is not valid to be located.');
+        }
+
+        if ($this->isAbsolutePath($name)) {
+            if (!file_exists($name)) {
+                throw new FileLocatorFileNotFoundException(sprintf('The file "%s" does not exist.', $name), 0, null, [$name]);
+            }
+
+            return $name;
+        }
+
+        $paths = $this->paths;
+
+        if (null !== $currentPath) {
+            array_unshift($paths, $currentPath);
+        }
+
+        $paths = array_unique($paths);
+        $filepaths = $notfound = [];
+
+        foreach ($paths as $path) {
+            if (@file_exists($file = $path.\DIRECTORY_SEPARATOR.$name)) {
+                if (true === $first) {
+                    return $file;
+                }
+                $filepaths[] = $file;
+            } else {
+                $notfound[] = $file;
+            }
+        }
+
+        if (!$filepaths) {
+            throw new FileLocatorFileNotFoundException(sprintf('The file "%s" does not exist (in: "%s").', $name, implode('", "', $paths)), 0, null, $notfound);
+        }
+
+        return $filepaths;
+    }
+
+    /**
+     * Returns whether the file path is an absolute path.
+     */
+    private function isAbsolutePath(string $file): bool
+    {
+        if ('/' === $file[0] || '\\' === $file[0]
+            || (\strlen($file) > 3 && ctype_alpha($file[0])
+                && ':' === $file[1]
+                && ('\\' === $file[2] || '/' === $file[2])
+            )
+            || parse_url($file, \PHP_URL_SCHEME)
+            || str_starts_with($file, 'phar:///') // "parse_url()" doesn't handle absolute phar path, despite being valid
+        ) {
+            return true;
+        }
+
+        return false;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/FileLocatorInterface.php

@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+use Symfony\Component\Config\Exception\FileLocatorFileNotFoundException;
+
+/**
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface FileLocatorInterface
+{
+    /**
+     * Returns a full path for a given file name.
+     *
+     * @param string      $name        The file name to locate
+     * @param string|null $currentPath The current path
+     * @param bool        $first       Whether to return the first occurrence or an array of filenames
+     *
+     * @return string|string[] The full path to the file or an array of file paths
+     *
+     * @throws \InvalidArgumentException        If $name is empty
+     * @throws FileLocatorFileNotFoundException If a file is not found
+     *
+     * @psalm-return ($first is true ? string : string[])
+     */
+    public function locate(string $name, ?string $currentPath = null, bool $first = true);
+}

plugins/simplesaml/lib/vendor/symfony/config/LICENSE

@@ -0,0 +1,19 @@
+Copyright (c) 2004-present Fabien Potencier
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished
+to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

plugins/simplesaml/lib/vendor/symfony/config/Loader/DelegatingLoader.php

@@ -0,0 +1,44 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+use Symfony\Component\Config\Exception\LoaderLoadException;
+
+/**
+ * DelegatingLoader delegates loading to other loaders using a loader resolver.
+ *
+ * This loader acts as an array of LoaderInterface objects - each having
+ * a chance to load a given resource (handled by the resolver)
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class DelegatingLoader extends Loader
+{
+    public function __construct(LoaderResolverInterface $resolver)
+    {
+        $this->resolver = $resolver;
+    }
+
+    public function load(mixed $resource, ?string $type = null): mixed
+    {
+        if (false === $loader = $this->resolver->resolve($resource, $type)) {
+            throw new LoaderLoadException($resource, null, 0, null, $type);
+        }
+
+        return $loader->load($resource, $type);
+    }
+
+    public function supports(mixed $resource, ?string $type = null): bool
+    {
+        return false !== $this->resolver->resolve($resource, $type);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Loader/DirectoryAwareLoaderInterface.php

@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+/**
+ * A loader that can be scoped to a given filesystem directory.
+ *
+ * @author Alexander M. Turek <me@derrabus.de>
+ */
+interface DirectoryAwareLoaderInterface
+{
+    public function forDirectory(string $currentDirectory): static;
+}

plugins/simplesaml/lib/vendor/symfony/config/Loader/FileLoader.php

@@ -0,0 +1,188 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+use Symfony\Component\Config\Exception\FileLoaderImportCircularReferenceException;
+use Symfony\Component\Config\Exception\FileLocatorFileNotFoundException;
+use Symfony\Component\Config\Exception\LoaderLoadException;
+use Symfony\Component\Config\FileLocatorInterface;
+use Symfony\Component\Config\Resource\FileExistenceResource;
+use Symfony\Component\Config\Resource\GlobResource;
+
+/**
+ * FileLoader is the abstract class used by all built-in loaders that are file based.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+abstract class FileLoader extends Loader
+{
+    protected static $loading = [];
+
+    protected $locator;
+
+    private ?string $currentDir = null;
+
+    public function __construct(FileLocatorInterface $locator, ?string $env = null)
+    {
+        $this->locator = $locator;
+        parent::__construct($env);
+    }
+
+    /**
+     * Sets the current directory.
+     *
+     * @return void
+     */
+    public function setCurrentDir(string $dir)
+    {
+        $this->currentDir = $dir;
+    }
+
+    /**
+     * Returns the file locator used by this loader.
+     */
+    public function getLocator(): FileLocatorInterface
+    {
+        return $this->locator;
+    }
+
+    /**
+     * Imports a resource.
+     *
+     * @param mixed                $resource       A Resource
+     * @param string|null          $type           The resource type or null if unknown
+     * @param bool                 $ignoreErrors   Whether to ignore import errors or not
+     * @param string|null          $sourceResource The original resource importing the new resource
+     * @param string|string[]|null $exclude        Glob patterns to exclude from the import
+     *
+     * @return mixed
+     *
+     * @throws LoaderLoadException
+     * @throws FileLoaderImportCircularReferenceException
+     * @throws FileLocatorFileNotFoundException
+     */
+    public function import(mixed $resource, ?string $type = null, bool $ignoreErrors = false, ?string $sourceResource = null, string|array|null $exclude = null)
+    {
+        if (\is_string($resource) && \strlen($resource) !== ($i = strcspn($resource, '*?{[')) && !str_contains($resource, "\n")) {
+            $excluded = [];
+            foreach ((array) $exclude as $pattern) {
+                foreach ($this->glob($pattern, true, $_, false, true) as $path => $info) {
+                    // normalize Windows slashes and remove trailing slashes
+                    $excluded[rtrim(str_replace('\\', '/', $path), '/')] = true;
+                }
+            }
+
+            $ret = [];
+            $isSubpath = 0 !== $i && str_contains(substr($resource, 0, $i), '/');
+            foreach ($this->glob($resource, false, $_, $ignoreErrors || !$isSubpath, false, $excluded) as $path => $info) {
+                if (null !== $res = $this->doImport($path, 'glob' === $type ? null : $type, $ignoreErrors, $sourceResource)) {
+                    $ret[] = $res;
+                }
+                $isSubpath = true;
+            }
+
+            if ($isSubpath) {
+                return isset($ret[1]) ? $ret : ($ret[0] ?? null);
+            }
+        }
+
+        return $this->doImport($resource, $type, $ignoreErrors, $sourceResource);
+    }
+
+    /**
+     * @internal
+     */
+    protected function glob(string $pattern, bool $recursive, array|GlobResource|null &$resource = null, bool $ignoreErrors = false, bool $forExclusion = false, array $excluded = []): iterable
+    {
+        if (\strlen($pattern) === $i = strcspn($pattern, '*?{[')) {
+            $prefix = $pattern;
+            $pattern = '';
+        } elseif (0 === $i || !str_contains(substr($pattern, 0, $i), '/')) {
+            $prefix = '.';
+            $pattern = '/'.$pattern;
+        } else {
+            $prefix = \dirname(substr($pattern, 0, 1 + $i));
+            $pattern = substr($pattern, \strlen($prefix));
+        }
+
+        try {
+            $prefix = $this->locator->locate($prefix, $this->currentDir, true);
+        } catch (FileLocatorFileNotFoundException $e) {
+            if (!$ignoreErrors) {
+                throw $e;
+            }
+
+            $resource = [];
+            foreach ($e->getPaths() as $path) {
+                $resource[] = new FileExistenceResource($path);
+            }
+
+            return;
+        }
+        $resource = new GlobResource($prefix, $pattern, $recursive, $forExclusion, $excluded);
+
+        yield from $resource;
+    }
+
+    private function doImport(mixed $resource, ?string $type = null, bool $ignoreErrors = false, ?string $sourceResource = null): mixed
+    {
+        try {
+            $loader = $this->resolve($resource, $type);
+
+            if ($loader instanceof DirectoryAwareLoaderInterface) {
+                $loader = $loader->forDirectory($this->currentDir);
+            }
+
+            if (!$loader instanceof self) {
+                return $loader->load($resource, $type);
+            }
+
+            if (null !== $this->currentDir) {
+                $resource = $loader->getLocator()->locate($resource, $this->currentDir, false);
+            }
+
+            $resources = \is_array($resource) ? $resource : [$resource];
+            for ($i = 0; $i < $resourcesCount = \count($resources); ++$i) {
+                if (isset(self::$loading[$resources[$i]])) {
+                    if ($i == $resourcesCount - 1) {
+                        throw new FileLoaderImportCircularReferenceException(array_keys(self::$loading));
+                    }
+                } else {
+                    $resource = $resources[$i];
+                    break;
+                }
+            }
+            self::$loading[$resource] = true;
+
+            try {
+                $ret = $loader->load($resource, $type);
+            } finally {
+                unset(self::$loading[$resource]);
+            }
+
+            return $ret;
+        } catch (FileLoaderImportCircularReferenceException $e) {
+            throw $e;
+        } catch (\Exception $e) {
+            if (!$ignoreErrors) {
+                // prevent embedded imports from nesting multiple exceptions
+                if ($e instanceof LoaderLoadException) {
+                    throw $e;
+                }
+
+                throw new LoaderLoadException($resource, $sourceResource, 0, $e, $type);
+            }
+        }
+
+        return null;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Loader/GlobFileLoader.php

@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+/**
+ * GlobFileLoader loads files from a glob pattern.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class GlobFileLoader extends FileLoader
+{
+    public function load(mixed $resource, ?string $type = null): mixed
+    {
+        return $this->import($resource);
+    }
+
+    public function supports(mixed $resource, ?string $type = null): bool
+    {
+        return 'glob' === $type;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Loader/Loader.php

@@ -0,0 +1,73 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+use Symfony\Component\Config\Exception\LoaderLoadException;
+
+/**
+ * Loader is the abstract class used by all built-in loaders.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+abstract class Loader implements LoaderInterface
+{
+    protected $resolver;
+    protected $env;
+
+    public function __construct(?string $env = null)
+    {
+        $this->env = $env;
+    }
+
+    public function getResolver(): LoaderResolverInterface
+    {
+        return $this->resolver;
+    }
+
+    /**
+     * @return void
+     */
+    public function setResolver(LoaderResolverInterface $resolver)
+    {
+        $this->resolver = $resolver;
+    }
+
+    /**
+     * Imports a resource.
+     *
+     * @return mixed
+     */
+    public function import(mixed $resource, ?string $type = null)
+    {
+        return $this->resolve($resource, $type)->load($resource, $type);
+    }
+
+    /**
+     * Finds a loader able to load an imported resource.
+     *
+     * @throws LoaderLoadException If no loader is found
+     */
+    public function resolve(mixed $resource, ?string $type = null): LoaderInterface
+    {
+        if ($this->supports($resource, $type)) {
+            return $this;
+        }
+
+        $loader = null === $this->resolver ? false : $this->resolver->resolve($resource, $type);
+
+        if (false === $loader) {
+            throw new LoaderLoadException($resource, null, 0, null, $type);
+        }
+
+        return $loader;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Loader/LoaderInterface.php

@@ -0,0 +1,52 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+/**
+ * LoaderInterface is the interface implemented by all loader classes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface LoaderInterface
+{
+    /**
+     * Loads a resource.
+     *
+     * @return mixed
+     *
+     * @throws \Exception If something went wrong
+     */
+    public function load(mixed $resource, ?string $type = null);
+
+    /**
+     * Returns whether this class supports the given resource.
+     *
+     * @param mixed $resource A resource
+     *
+     * @return bool
+     */
+    public function supports(mixed $resource, ?string $type = null);
+
+    /**
+     * Gets the loader resolver.
+     *
+     * @return LoaderResolverInterface
+     */
+    public function getResolver();
+
+    /**
+     * Sets the loader resolver.
+     *
+     * @return void
+     */
+    public function setResolver(LoaderResolverInterface $resolver);
+}

plugins/simplesaml/lib/vendor/symfony/config/Loader/LoaderResolver.php

@@ -0,0 +1,68 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+/**
+ * LoaderResolver selects a loader for a given resource.
+ *
+ * A resource can be anything (e.g. a full path to a config file or a Closure).
+ * Each loader determines whether it can load a resource and how.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class LoaderResolver implements LoaderResolverInterface
+{
+    /**
+     * @var LoaderInterface[] An array of LoaderInterface objects
+     */
+    private array $loaders = [];
+
+    /**
+     * @param LoaderInterface[] $loaders An array of loaders
+     */
+    public function __construct(array $loaders = [])
+    {
+        foreach ($loaders as $loader) {
+            $this->addLoader($loader);
+        }
+    }
+
+    public function resolve(mixed $resource, ?string $type = null): LoaderInterface|false
+    {
+        foreach ($this->loaders as $loader) {
+            if ($loader->supports($resource, $type)) {
+                return $loader;
+            }
+        }
+
+        return false;
+    }
+
+    /**
+     * @return void
+     */
+    public function addLoader(LoaderInterface $loader)
+    {
+        $this->loaders[] = $loader;
+        $loader->setResolver($this);
+    }
+
+    /**
+     * Returns the registered loaders.
+     *
+     * @return LoaderInterface[]
+     */
+    public function getLoaders(): array
+    {
+        return $this->loaders;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Loader/LoaderResolverInterface.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+/**
+ * LoaderResolverInterface selects a loader for a given resource.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface LoaderResolverInterface
+{
+    /**
+     * Returns a loader able to load the resource.
+     *
+     * @param string|null $type The resource type or null if unknown
+     */
+    public function resolve(mixed $resource, ?string $type = null): LoaderInterface|false;
+}

plugins/simplesaml/lib/vendor/symfony/config/Loader/ParamConfigurator.php

@@ -0,0 +1,32 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Loader;
+
+/**
+ * Placeholder for a parameter.
+ *
+ * @author Tobias Nyholm <tobias.nyholm@gmail.com>
+ */
+class ParamConfigurator
+{
+    private string $name;
+
+    public function __construct(string $name)
+    {
+        $this->name = $name;
+    }
+
+    public function __toString(): string
+    {
+        return '%'.$this->name.'%';
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/README.md

@@ -0,0 +1,15 @@
+Config Component
+================
+
+The Config component helps find, load, combine, autofill and validate
+configuration values of any kind, whatever their source may be (YAML, XML, INI
+files, or for instance a database).
+
+Resources
+---------
+
+ * [Documentation](https://symfony.com/doc/current/components/config.html)
+ * [Contributing](https://symfony.com/doc/current/contributing/index.html)
+ * [Report issues](https://github.com/symfony/symfony/issues) and
+   [send Pull Requests](https://github.com/symfony/symfony/pulls)
+   in the [main Symfony repository](https://github.com/symfony/symfony)

plugins/simplesaml/lib/vendor/symfony/config/Resource/ClassExistenceResource.php

@@ -0,0 +1,227 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Resource;
+
+/**
+ * ClassExistenceResource represents a class existence.
+ * Freshness is only evaluated against resource existence.
+ *
+ * The resource must be a fully-qualified class name.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final
+ */
+class ClassExistenceResource implements SelfCheckingResourceInterface
+{
+    private string $resource;
+    private ?array $exists = null;
+
+    private static int $autoloadLevel = 0;
+    private static ?string $autoloadedClass = null;
+    private static array $existsCache = [];
+
+    /**
+     * @param string    $resource The fully-qualified class name
+     * @param bool|null $exists   Boolean when the existence check has already been done
+     */
+    public function __construct(string $resource, ?bool $exists = null)
+    {
+        $this->resource = $resource;
+        if (null !== $exists) {
+            $this->exists = [$exists, null];
+        }
+    }
+
+    public function __toString(): string
+    {
+        return $this->resource;
+    }
+
+    public function getResource(): string
+    {
+        return $this->resource;
+    }
+
+    /**
+     * @throws \ReflectionException when a parent class/interface/trait is not found
+     */
+    public function isFresh(int $timestamp): bool
+    {
+        $loaded = class_exists($this->resource, false) || interface_exists($this->resource, false) || trait_exists($this->resource, false);
+
+        if (null !== $exists = &self::$existsCache[$this->resource]) {
+            if ($loaded) {
+                $exists = [true, null];
+            } elseif (0 >= $timestamp && !$exists[0] && null !== $exists[1]) {
+                throw new \ReflectionException($exists[1]);
+            }
+        } elseif ([false, null] === $exists = [$loaded, null]) {
+            if (!self::$autoloadLevel++) {
+                spl_autoload_register(__CLASS__.'::throwOnRequiredClass');
+            }
+            $autoloadedClass = self::$autoloadedClass;
+            self::$autoloadedClass = ltrim($this->resource, '\\');
+
+            try {
+                $exists[0] = class_exists($this->resource) || interface_exists($this->resource, false) || trait_exists($this->resource, false);
+            } catch (\Exception $e) {
+                $exists[1] = $e->getMessage();
+
+                try {
+                    self::throwOnRequiredClass($this->resource, $e);
+                } catch (\ReflectionException $e) {
+                    if (0 >= $timestamp) {
+                        throw $e;
+                    }
+                }
+            } catch (\Throwable $e) {
+                $exists[1] = $e->getMessage();
+
+                throw $e;
+            } finally {
+                self::$autoloadedClass = $autoloadedClass;
+                if (!--self::$autoloadLevel) {
+                    spl_autoload_unregister(__CLASS__.'::throwOnRequiredClass');
+                }
+            }
+        }
+
+        $this->exists ??= $exists;
+
+        return $this->exists[0] xor !$exists[0];
+    }
+
+    /**
+     * @internal
+     */
+    public function __sleep(): array
+    {
+        if (null === $this->exists) {
+            $this->isFresh(0);
+        }
+
+        return ['resource', 'exists'];
+    }
+
+    /**
+     * @internal
+     */
+    public function __wakeup(): void
+    {
+        if (\is_bool($this->exists)) {
+            $this->exists = [$this->exists, null];
+        }
+    }
+
+    /**
+     * Throws a reflection exception when the passed class does not exist but is required.
+     *
+     * A class is considered "not required" when it's loaded as part of a "class_exists" or similar check.
+     *
+     * This function can be used as an autoload function to throw a reflection
+     * exception if the class was not found by previous autoload functions.
+     *
+     * A previous exception can be passed. In this case, the class is considered as being
+     * required totally, so if it doesn't exist, a reflection exception is always thrown.
+     * If it exists, the previous exception is rethrown.
+     *
+     * @throws \ReflectionException
+     *
+     * @internal
+     */
+    public static function throwOnRequiredClass(string $class, ?\Exception $previous = null): void
+    {
+        // If the passed class is the resource being checked, we shouldn't throw.
+        if (null === $previous && self::$autoloadedClass === $class) {
+            return;
+        }
+
+        if (class_exists($class, false) || interface_exists($class, false) || trait_exists($class, false)) {
+            if (null !== $previous) {
+                throw $previous;
+            }
+
+            return;
+        }
+
+        if ($previous instanceof \ReflectionException) {
+            throw $previous;
+        }
+
+        $message = sprintf('Class "%s" not found.', $class);
+
+        if ($class !== (self::$autoloadedClass ?? $class)) {
+            $message = substr_replace($message, sprintf(' while loading "%s"', self::$autoloadedClass), -1, 0);
+        }
+
+        if (null !== $previous) {
+            $message = $previous->getMessage();
+        }
+
+        $e = new \ReflectionException($message, 0, $previous);
+
+        if (null !== $previous) {
+            throw $e;
+        }
+
+        $trace = debug_backtrace();
+        $autoloadFrame = [
+            'function' => 'spl_autoload_call',
+            'args' => [$class],
+        ];
+
+        if (isset($trace[1])) {
+            $callerFrame = $trace[1];
+            $i = 2;
+        } elseif (false !== $i = array_search($autoloadFrame, $trace, true)) {
+            $callerFrame = $trace[++$i];
+        } else {
+            throw $e;
+        }
+
+        if (isset($callerFrame['function']) && !isset($callerFrame['class'])) {
+            switch ($callerFrame['function']) {
+                case 'get_class_methods':
+                case 'get_class_vars':
+                case 'get_parent_class':
+                case 'is_a':
+                case 'is_subclass_of':
+                case 'class_exists':
+                case 'class_implements':
+                case 'class_parents':
+                case 'trait_exists':
+                case 'defined':
+                case 'interface_exists':
+                case 'method_exists':
+                case 'property_exists':
+                case 'is_callable':
+                    return;
+            }
+
+            $props = [
+                'file' => $callerFrame['file'] ?? null,
+                'line' => $callerFrame['line'] ?? null,
+                'trace' => \array_slice($trace, 1 + $i),
+            ];
+
+            foreach ($props as $p => $v) {
+                if (null !== $v) {
+                    $r = new \ReflectionProperty(\Exception::class, $p);
+                    $r->setValue($e, $v);
+                }
+            }
+        }
+
+        throw $e;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Resource/ComposerResource.php

@@ -0,0 +1,64 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Resource;
+
+/**
+ * ComposerResource tracks the PHP version and Composer dependencies.
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @final
+ */
+class ComposerResource implements SelfCheckingResourceInterface
+{
+    private array $vendors;
+
+    private static array $runtimeVendors;
+
+    public function __construct()
+    {
+        self::refresh();
+        $this->vendors = self::$runtimeVendors;
+    }
+
+    public function getVendors(): array
+    {
+        return array_keys($this->vendors);
+    }
+
+    public function __toString(): string
+    {
+        return __CLASS__;
+    }
+
+    public function isFresh(int $timestamp): bool
+    {
+        self::refresh();
+
+        return array_values(self::$runtimeVendors) === array_values($this->vendors);
+    }
+
+    private static function refresh(): void
+    {
+        self::$runtimeVendors = [];
+
+        foreach (get_declared_classes() as $class) {
+            if ('C' === $class[0] && str_starts_with($class, 'ComposerAutoloaderInit')) {
+                $r = new \ReflectionClass($class);
+                $v = \dirname($r->getFileName(), 2);
+                if (is_file($v.'/composer/installed.json')) {
+                    self::$runtimeVendors[$v] = @filemtime($v.'/composer/installed.json');
+                }
+            }
+        }
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Resource/DirectoryResource.php

@@ -0,0 +1,96 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Resource;
+
+/**
+ * DirectoryResource represents a resources stored in a subdirectory tree.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final
+ */
+class DirectoryResource implements SelfCheckingResourceInterface
+{
+    private string $resource;
+    private ?string $pattern;
+
+    /**
+     * @param string      $resource The file path to the resource
+     * @param string|null $pattern  A pattern to restrict monitored files
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function __construct(string $resource, ?string $pattern = null)
+    {
+        $resolvedResource = realpath($resource) ?: (file_exists($resource) ? $resource : false);
+        $this->pattern = $pattern;
+
+        if (false === $resolvedResource || !is_dir($resolvedResource)) {
+            throw new \InvalidArgumentException(sprintf('The directory "%s" does not exist.', $resource));
+        }
+
+        $this->resource = $resolvedResource;
+    }
+
+    public function __toString(): string
+    {
+        return hash('xxh128', serialize([$this->resource, $this->pattern]));
+    }
+
+    public function getResource(): string
+    {
+        return $this->resource;
+    }
+
+    public function getPattern(): ?string
+    {
+        return $this->pattern;
+    }
+
+    public function isFresh(int $timestamp): bool
+    {
+        if (!is_dir($this->resource)) {
+            return false;
+        }
+
+        if ($timestamp < filemtime($this->resource)) {
+            return false;
+        }
+
+        foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->resource), \RecursiveIteratorIterator::SELF_FIRST) as $file) {
+            // if regex filtering is enabled only check matching files
+            if ($this->pattern && $file->isFile() && !preg_match($this->pattern, $file->getBasename())) {
+                continue;
+            }
+
+            // always monitor directories for changes, except the .. entries
+            // (otherwise deleted files wouldn't get detected)
+            if ($file->isDir() && str_ends_with($file, '/..')) {
+                continue;
+            }
+
+            // for broken links
+            try {
+                $fileMTime = $file->getMTime();
+            } catch (\RuntimeException) {
+                continue;
+            }
+
+            // early return if a file's mtime exceeds the passed timestamp
+            if ($timestamp < $fileMTime) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Resource/FileExistenceResource.php

@@ -0,0 +1,53 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Resource;
+
+/**
+ * FileExistenceResource represents a resource stored on the filesystem.
+ * Freshness is only evaluated against resource creation or deletion.
+ *
+ * The resource can be a file or a directory.
+ *
+ * @author Charles-Henri Bruyand <charleshenri.bruyand@gmail.com>
+ *
+ * @final
+ */
+class FileExistenceResource implements SelfCheckingResourceInterface
+{
+    private string $resource;
+
+    private bool $exists;
+
+    /**
+     * @param string $resource The file path to the resource
+     */
+    public function __construct(string $resource)
+    {
+        $this->resource = $resource;
+        $this->exists = file_exists($resource);
+    }
+
+    public function __toString(): string
+    {
+        return 'existence.'.$this->resource;
+    }
+
+    public function getResource(): string
+    {
+        return $this->resource;
+    }
+
+    public function isFresh(int $timestamp): bool
+    {
+        return file_exists($this->resource) === $this->exists;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Resource/FileResource.php

@@ -0,0 +1,60 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Resource;
+
+/**
+ * FileResource represents a resource stored on the filesystem.
+ *
+ * The resource can be a file or a directory.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @final
+ */
+class FileResource implements SelfCheckingResourceInterface
+{
+    private string $resource;
+
+    /**
+     * @param string $resource The file path to the resource
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function __construct(string $resource)
+    {
+        $resolvedResource = realpath($resource) ?: (file_exists($resource) ? $resource : false);
+
+        if (false === $resolvedResource) {
+            throw new \InvalidArgumentException(sprintf('The file "%s" does not exist.', $resource));
+        }
+
+        $this->resource = $resolvedResource;
+    }
+
+    public function __toString(): string
+    {
+        return $this->resource;
+    }
+
+    /**
+     * Returns the canonicalized, absolute path to the resource.
+     */
+    public function getResource(): string
+    {
+        return $this->resource;
+    }
+
+    public function isFresh(int $timestamp): bool
+    {
+        return false !== ($filemtime = @filemtime($this->resource)) && $filemtime <= $timestamp;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Resource/GlobResource.php

@@ -0,0 +1,249 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Resource;
+
+use Symfony\Component\Finder\Finder;
+use Symfony\Component\Finder\Glob;
+
+/**
+ * GlobResource represents a set of resources stored on the filesystem.
+ *
+ * Only existence/removal is tracked (not mtimes.)
+ *
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @final
+ *
+ * @implements \IteratorAggregate<string, \SplFileInfo>
+ */
+class GlobResource implements \IteratorAggregate, SelfCheckingResourceInterface
+{
+    private string $prefix;
+    private string $pattern;
+    private bool $recursive;
+    private string $hash;
+    private bool $forExclusion;
+    private array $excludedPrefixes;
+    private int $globBrace;
+
+    /**
+     * @param string $prefix    A directory prefix
+     * @param string $pattern   A glob pattern
+     * @param bool   $recursive Whether directories should be scanned recursively or not
+     *
+     * @throws \InvalidArgumentException
+     */
+    public function __construct(string $prefix, string $pattern, bool $recursive, bool $forExclusion = false, array $excludedPrefixes = [])
+    {
+        ksort($excludedPrefixes);
+        $resolvedPrefix = realpath($prefix) ?: (file_exists($prefix) ? $prefix : false);
+        $this->pattern = $pattern;
+        $this->recursive = $recursive;
+        $this->forExclusion = $forExclusion;
+        $this->excludedPrefixes = $excludedPrefixes;
+        $this->globBrace = \defined('GLOB_BRACE') ? \GLOB_BRACE : 0;
+
+        if (false === $resolvedPrefix) {
+            throw new \InvalidArgumentException(sprintf('The path "%s" does not exist.', $prefix));
+        }
+
+        $this->prefix = $resolvedPrefix;
+    }
+
+    public function getPrefix(): string
+    {
+        return $this->prefix;
+    }
+
+    public function __toString(): string
+    {
+        return 'glob.'.$this->prefix.(int) $this->recursive.$this->pattern.(int) $this->forExclusion.implode("\0", $this->excludedPrefixes);
+    }
+
+    public function isFresh(int $timestamp): bool
+    {
+        $hash = $this->computeHash();
+        $this->hash ??= $hash;
+
+        return $this->hash === $hash;
+    }
+
+    /**
+     * @internal
+     */
+    public function __sleep(): array
+    {
+        $this->hash ??= $this->computeHash();
+
+        return ['prefix', 'pattern', 'recursive', 'hash', 'forExclusion', 'excludedPrefixes'];
+    }
+
+    /**
+     * @internal
+     */
+    public function __wakeup(): void
+    {
+        $this->globBrace = \defined('GLOB_BRACE') ? \GLOB_BRACE : 0;
+    }
+
+    public function getIterator(): \Traversable
+    {
+        if ((!$this->recursive && '' === $this->pattern) || !file_exists($this->prefix)) {
+            return;
+        }
+
+        if (is_file($prefix = str_replace('\\', '/', $this->prefix))) {
+            $prefix = \dirname($prefix);
+            $pattern = basename($prefix).$this->pattern;
+        } else {
+            $pattern = $this->pattern;
+        }
+
+        if (class_exists(Finder::class)) {
+            $regex = Glob::toRegex($pattern);
+            if ($this->recursive) {
+                $regex = substr_replace($regex, '(/|$)', -2, 1);
+            }
+        } else {
+            $regex = null;
+        }
+
+        $prefixLen = \strlen($prefix);
+        $paths = null;
+
+        if ('' === $this->pattern && is_file($this->prefix)) {
+            $paths = [$this->prefix => null];
+        } elseif (!str_starts_with($this->prefix, 'phar://') && (null !== $regex || !str_contains($this->pattern, '/**/'))) {
+            if (!str_contains($this->pattern, '/**/') && ($this->globBrace || !str_contains($this->pattern, '{'))) {
+                $paths = array_fill_keys(glob($this->prefix.$this->pattern, \GLOB_NOSORT | $this->globBrace), null);
+            } elseif (!str_contains($this->pattern, '\\') || !preg_match('/\\\\[,{}]/', $this->pattern)) {
+                $paths = [];
+                foreach ($this->expandGlob($this->pattern) as $p) {
+                    if (false !== $i = strpos($p, '/**/')) {
+                        $p = substr_replace($p, '/*', $i);
+                    }
+                    $paths += array_fill_keys(glob($this->prefix.$p, \GLOB_NOSORT), false !== $i ? $regex : null);
+                }
+            }
+        }
+
+        if (null !== $paths) {
+            uksort($paths, 'strnatcmp');
+            foreach ($paths as $path => $regex) {
+                if ($this->excludedPrefixes) {
+                    $normalizedPath = str_replace('\\', '/', $path);
+                    do {
+                        if (isset($this->excludedPrefixes[$dirPath = $normalizedPath])) {
+                            continue 2;
+                        }
+                    } while ($prefix !== $dirPath && $dirPath !== $normalizedPath = \dirname($dirPath));
+                }
+
+                if ((null === $regex || preg_match($regex, substr(str_replace('\\', '/', $path), $prefixLen))) && is_file($path)) {
+                    yield $path => new \SplFileInfo($path);
+                }
+                if (!is_dir($path)) {
+                    continue;
+                }
+                if ($this->forExclusion && (null === $regex || preg_match($regex, substr(str_replace('\\', '/', $path), $prefixLen)))) {
+                    yield $path => new \SplFileInfo($path);
+                    continue;
+                }
+                if (!($this->recursive || null !== $regex) || isset($this->excludedPrefixes[str_replace('\\', '/', $path)])) {
+                    continue;
+                }
+                $files = iterator_to_array(new \RecursiveIteratorIterator(
+                    new \RecursiveCallbackFilterIterator(
+                        new \RecursiveDirectoryIterator($path, \FilesystemIterator::SKIP_DOTS | \FilesystemIterator::FOLLOW_SYMLINKS),
+                        fn (\SplFileInfo $file, $path) => !isset($this->excludedPrefixes[$path = str_replace('\\', '/', $path)])
+                            && (null === $regex || preg_match($regex, substr($path, $prefixLen)) || $file->isDir())
+                            && '.' !== $file->getBasename()[0]
+                    ),
+                    \RecursiveIteratorIterator::LEAVES_ONLY
+                ));
+                uksort($files, 'strnatcmp');
+
+                foreach ($files as $path => $info) {
+                    if ($info->isFile()) {
+                        yield $path => $info;
+                    }
+                }
+            }
+
+            return;
+        }
+
+        if (!class_exists(Finder::class)) {
+            throw new \LogicException('Extended glob patterns cannot be used as the Finder component is not installed. Try running "composer require symfony/finder".');
+        }
+
+        yield from (new Finder())
+            ->followLinks()
+            ->filter(function (\SplFileInfo $info) use ($regex, $prefixLen, $prefix) {
+                $normalizedPath = str_replace('\\', '/', $info->getPathname());
+                if (!preg_match($regex, substr($normalizedPath, $prefixLen)) || !$info->isFile()) {
+                    return false;
+                }
+                if ($this->excludedPrefixes) {
+                    do {
+                        if (isset($this->excludedPrefixes[$dirPath = $normalizedPath])) {
+                            return false;
+                        }
+                    } while ($prefix !== $dirPath && $dirPath !== $normalizedPath = \dirname($dirPath));
+                }
+            })
+            ->sortByName()
+            ->in($prefix)
+        ;
+    }
+
+    private function computeHash(): string
+    {
+        $hash = hash_init('xxh128');
+
+        foreach ($this->getIterator() as $path => $info) {
+            hash_update($hash, $path."\n");
+        }
+
+        return hash_final($hash);
+    }
+
+    private function expandGlob(string $pattern): array
+    {
+        $segments = preg_split('/\{([^{}]*+)\}/', $pattern, -1, \PREG_SPLIT_DELIM_CAPTURE);
+        $paths = [$segments[0]];
+        $patterns = [];
+
+        for ($i = 1; $i < \count($segments); $i += 2) {
+            $patterns = [];
+
+            foreach (explode(',', $segments[$i]) as $s) {
+                foreach ($paths as $p) {
+                    $patterns[] = $p.$s.$segments[1 + $i];
+                }
+            }
+
+            $paths = $patterns;
+        }
+
+        $j = 0;
+        foreach ($patterns as $i => $p) {
+            if (str_contains($p, '{')) {
+                $p = $this->expandGlob($p);
+                array_splice($paths, $i + $j, 1, $p);
+                $j += \count($p) - 1;
+            }
+        }
+
+        return $paths;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Resource/ReflectionClassResource.php

@@ -0,0 +1,206 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Resource;
+
+use Symfony\Component\EventDispatcher\EventSubscriberInterface;
+use Symfony\Component\Messenger\Handler\MessageSubscriberInterface;
+use Symfony\Contracts\Service\ServiceSubscriberInterface;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @final
+ */
+class ReflectionClassResource implements SelfCheckingResourceInterface
+{
+    private array $files = [];
+    private string $className;
+    private \ReflectionClass $classReflector;
+    private array $excludedVendors = [];
+    private string $hash;
+
+    public function __construct(\ReflectionClass $classReflector, array $excludedVendors = [])
+    {
+        $this->className = $classReflector->name;
+        $this->classReflector = $classReflector;
+        $this->excludedVendors = $excludedVendors;
+    }
+
+    public function isFresh(int $timestamp): bool
+    {
+        if (!isset($this->hash)) {
+            $this->hash = $this->computeHash();
+            $this->loadFiles($this->classReflector);
+        }
+
+        foreach ($this->files as $file => $v) {
+            if (false === $filemtime = @filemtime($file)) {
+                return false;
+            }
+
+            if ($filemtime > $timestamp) {
+                return $this->hash === $this->computeHash();
+            }
+        }
+
+        return true;
+    }
+
+    public function __toString(): string
+    {
+        return 'reflection.'.$this->className;
+    }
+
+    /**
+     * @internal
+     */
+    public function __sleep(): array
+    {
+        if (!isset($this->hash)) {
+            $this->hash = $this->computeHash();
+            $this->loadFiles($this->classReflector);
+        }
+
+        return ['files', 'className', 'hash'];
+    }
+
+    private function loadFiles(\ReflectionClass $class): void
+    {
+        foreach ($class->getInterfaces() as $v) {
+            $this->loadFiles($v);
+        }
+        do {
+            $file = $class->getFileName();
+            if (false !== $file && is_file($file)) {
+                foreach ($this->excludedVendors as $vendor) {
+                    if (str_starts_with($file, $vendor) && false !== strpbrk(substr($file, \strlen($vendor), 1), '/'.\DIRECTORY_SEPARATOR)) {
+                        $file = false;
+                        break;
+                    }
+                }
+                if ($file) {
+                    $this->files[$file] = null;
+                }
+            }
+            foreach ($class->getTraits() as $v) {
+                $this->loadFiles($v);
+            }
+        } while ($class = $class->getParentClass());
+    }
+
+    private function computeHash(): string
+    {
+        try {
+            $this->classReflector ??= new \ReflectionClass($this->className);
+        } catch (\ReflectionException) {
+            // the class does not exist anymore
+            return false;
+        }
+        $hash = hash_init('xxh128');
+
+        foreach ($this->generateSignature($this->classReflector) as $info) {
+            hash_update($hash, $info);
+        }
+
+        return hash_final($hash);
+    }
+
+    private function generateSignature(\ReflectionClass $class): iterable
+    {
+        $attributes = [];
+        foreach ($class->getAttributes() as $a) {
+            $attributes[] = [$a->getName(), (string) $a];
+        }
+        yield print_r($attributes, true);
+        $attributes = [];
+
+        yield $class->getDocComment();
+        yield (int) $class->isFinal();
+        yield (int) $class->isAbstract();
+
+        if ($class->isTrait()) {
+            yield print_r(class_uses($class->name), true);
+        } else {
+            yield print_r(class_parents($class->name), true);
+            yield print_r(class_implements($class->name), true);
+            yield print_r($class->getConstants(), true);
+        }
+
+        if (!$class->isInterface()) {
+            $defaults = $class->getDefaultProperties();
+
+            foreach ($class->getProperties(\ReflectionProperty::IS_PUBLIC | \ReflectionProperty::IS_PROTECTED) as $p) {
+                foreach ($p->getAttributes() as $a) {
+                    $attributes[] = [$a->getName(), (string) $a];
+                }
+                yield print_r($attributes, true);
+                $attributes = [];
+
+                yield $p->getDocComment();
+                yield $p->isDefault() ? '<default>' : '';
+                yield $p->isPublic() ? 'public' : 'protected';
+                yield $p->isStatic() ? 'static' : '';
+                yield '$'.$p->name;
+                yield print_r(isset($defaults[$p->name]) && !\is_object($defaults[$p->name]) ? $defaults[$p->name] : null, true);
+            }
+        }
+
+        foreach ($class->getMethods(\ReflectionMethod::IS_PUBLIC | \ReflectionMethod::IS_PROTECTED) as $m) {
+            foreach ($m->getAttributes() as $a) {
+                $attributes[] = [$a->getName(), (string) $a];
+            }
+            yield print_r($attributes, true);
+            $attributes = [];
+
+            $defaults = [];
+            foreach ($m->getParameters() as $p) {
+                foreach ($p->getAttributes() as $a) {
+                    $attributes[] = [$a->getName(), (string) $a];
+                }
+                yield print_r($attributes, true);
+                $attributes = [];
+
+                if (!$p->isDefaultValueAvailable()) {
+                    $defaults[$p->name] = null;
+
+                    continue;
+                }
+
+                $defaults[$p->name] = (string) $p;
+            }
+
+            yield preg_replace('/^  @@.*/m', '', $m);
+            yield print_r($defaults, true);
+        }
+
+        if ($class->isAbstract() || $class->isInterface() || $class->isTrait()) {
+            return;
+        }
+
+        if (interface_exists(EventSubscriberInterface::class, false) && $class->isSubclassOf(EventSubscriberInterface::class)) {
+            yield EventSubscriberInterface::class;
+            yield print_r($class->name::getSubscribedEvents(), true);
+        }
+
+        if (interface_exists(MessageSubscriberInterface::class, false) && $class->isSubclassOf(MessageSubscriberInterface::class)) {
+            yield MessageSubscriberInterface::class;
+            foreach ($class->name::getHandledMessages() as $key => $value) {
+                yield $key.print_r($value, true);
+            }
+        }
+
+        if (interface_exists(ServiceSubscriberInterface::class, false) && $class->isSubclassOf(ServiceSubscriberInterface::class)) {
+            yield ServiceSubscriberInterface::class;
+            yield print_r($class->name::getSubscribedServices(), true);
+        }
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Resource/ResourceInterface.php

@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Resource;
+
+/**
+ * ResourceInterface is the interface that must be implemented by all Resource classes.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface ResourceInterface extends \Stringable
+{
+    /**
+     * Returns a string representation of the Resource.
+     *
+     * This method is necessary to allow for resource de-duplication, for example by means
+     * of array_unique(). The string returned need not have a particular meaning, but has
+     * to be identical for different ResourceInterface instances referring to the same
+     * resource; and it should be unlikely to collide with that of other, unrelated
+     * resource instances.
+     */
+    public function __toString(): string;
+}

plugins/simplesaml/lib/vendor/symfony/config/Resource/SelfCheckingResourceChecker.php

@@ -0,0 +1,46 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Resource;
+
+use Symfony\Component\Config\ResourceCheckerInterface;
+
+/**
+ * Resource checker for instances of SelfCheckingResourceInterface.
+ *
+ * As these resources perform the actual check themselves, we can provide
+ * this class as a standard way of validating them.
+ *
+ * @author Matthias Pigulla <mp@webfactory.de>
+ */
+class SelfCheckingResourceChecker implements ResourceCheckerInterface
+{
+    // Common shared cache, because this checker can be used in different
+    // situations. For example, when using the full stack framework, the router
+    // and the container have their own cache. But they may check the very same
+    // resources
+    private static array $cache = [];
+
+    public function supports(ResourceInterface $metadata): bool
+    {
+        return $metadata instanceof SelfCheckingResourceInterface;
+    }
+
+    /**
+     * @param SelfCheckingResourceInterface $resource
+     */
+    public function isFresh(ResourceInterface $resource, int $timestamp): bool
+    {
+        $key = "$resource:$timestamp";
+
+        return self::$cache[$key] ??= $resource->isFresh($timestamp);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/Resource/SelfCheckingResourceInterface.php

@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Resource;
+
+/**
+ * Interface for Resources that can check for freshness autonomously,
+ * without special support from external services.
+ *
+ * @author Matthias Pigulla <mp@webfactory.de>
+ */
+interface SelfCheckingResourceInterface extends ResourceInterface
+{
+    /**
+     * Returns true if the resource has not been updated since the given timestamp.
+     *
+     * @param int $timestamp The last time the resource was loaded
+     */
+    public function isFresh(int $timestamp): bool;
+}

plugins/simplesaml/lib/vendor/symfony/config/ResourceCheckerConfigCache.php

@@ -0,0 +1,181 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+use Symfony\Component\Config\Resource\ResourceInterface;
+use Symfony\Component\Filesystem\Exception\IOException;
+use Symfony\Component\Filesystem\Filesystem;
+
+/**
+ * ResourceCheckerConfigCache uses instances of ResourceCheckerInterface
+ * to check whether cached data is still fresh.
+ *
+ * @author Matthias Pigulla <mp@webfactory.de>
+ */
+class ResourceCheckerConfigCache implements ConfigCacheInterface
+{
+    private string $file;
+
+    /**
+     * @var iterable<mixed, ResourceCheckerInterface>
+     */
+    private iterable $resourceCheckers;
+
+    /**
+     * @param string                                    $file             The absolute cache path
+     * @param iterable<mixed, ResourceCheckerInterface> $resourceCheckers The ResourceCheckers to use for the freshness check
+     */
+    public function __construct(string $file, iterable $resourceCheckers = [])
+    {
+        $this->file = $file;
+        $this->resourceCheckers = $resourceCheckers;
+    }
+
+    public function getPath(): string
+    {
+        return $this->file;
+    }
+
+    /**
+     * Checks if the cache is still fresh.
+     *
+     * This implementation will make a decision solely based on the ResourceCheckers
+     * passed in the constructor.
+     *
+     * The first ResourceChecker that supports a given resource is considered authoritative.
+     * Resources with no matching ResourceChecker will silently be ignored and considered fresh.
+     */
+    public function isFresh(): bool
+    {
+        if (!is_file($this->file)) {
+            return false;
+        }
+
+        if ($this->resourceCheckers instanceof \Traversable && !$this->resourceCheckers instanceof \Countable) {
+            $this->resourceCheckers = iterator_to_array($this->resourceCheckers);
+        }
+
+        if (!\count($this->resourceCheckers)) {
+            return true; // shortcut - if we don't have any checkers we don't need to bother with the meta file at all
+        }
+
+        $metadata = $this->getMetaFile();
+
+        if (!is_file($metadata)) {
+            return false;
+        }
+
+        $meta = $this->safelyUnserialize($metadata);
+
+        if (false === $meta) {
+            return false;
+        }
+
+        $time = filemtime($this->file);
+
+        foreach ($meta as $resource) {
+            foreach ($this->resourceCheckers as $checker) {
+                if (!$checker->supports($resource)) {
+                    continue; // next checker
+                }
+                if ($checker->isFresh($resource, $time)) {
+                    break; // no need to further check this resource
+                }
+
+                return false; // cache is stale
+            }
+            // no suitable checker found, ignore this resource
+        }
+
+        return true;
+    }
+
+    /**
+     * Writes cache.
+     *
+     * @param string              $content  The content to write in the cache
+     * @param ResourceInterface[] $metadata An array of metadata
+     *
+     * @return void
+     *
+     * @throws \RuntimeException When cache file can't be written
+     */
+    public function write(string $content, ?array $metadata = null)
+    {
+        $mode = 0666;
+        $umask = umask();
+        $filesystem = new Filesystem();
+        $filesystem->dumpFile($this->file, $content);
+        try {
+            $filesystem->chmod($this->file, $mode, $umask);
+        } catch (IOException) {
+            // discard chmod failure (some filesystem may not support it)
+        }
+
+        if (null !== $metadata) {
+            $filesystem->dumpFile($this->getMetaFile(), serialize($metadata));
+            try {
+                $filesystem->chmod($this->getMetaFile(), $mode, $umask);
+            } catch (IOException) {
+                // discard chmod failure (some filesystem may not support it)
+            }
+        }
+
+        if (\function_exists('opcache_invalidate') && filter_var(\ini_get('opcache.enable'), \FILTER_VALIDATE_BOOL)) {
+            @opcache_invalidate($this->file, true);
+        }
+    }
+
+    /**
+     * Gets the meta file path.
+     */
+    private function getMetaFile(): string
+    {
+        return $this->file.'.meta';
+    }
+
+    private function safelyUnserialize(string $file): mixed
+    {
+        $meta = false;
+        $content = file_get_contents($file);
+        $signalingException = new \UnexpectedValueException();
+        $prevUnserializeHandler = ini_set('unserialize_callback_func', self::class.'::handleUnserializeCallback');
+        $prevErrorHandler = set_error_handler(function ($type, $msg, $file, $line, $context = []) use (&$prevErrorHandler, $signalingException) {
+            if (__FILE__ === $file && !\in_array($type, [\E_DEPRECATED, \E_USER_DEPRECATED], true)) {
+                throw $signalingException;
+            }
+
+            return $prevErrorHandler ? $prevErrorHandler($type, $msg, $file, $line, $context) : false;
+        });
+
+        try {
+            $meta = unserialize($content);
+        } catch (\Throwable $e) {
+            if ($e !== $signalingException) {
+                throw $e;
+            }
+        } finally {
+            restore_error_handler();
+            ini_set('unserialize_callback_func', $prevUnserializeHandler);
+        }
+
+        return $meta;
+    }
+
+    /**
+     * @internal
+     */
+    public static function handleUnserializeCallback(string $class): void
+    {
+        trigger_error('Class not found: '.$class);
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/ResourceCheckerConfigCacheFactory.php

@@ -0,0 +1,41 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+/**
+ * A ConfigCacheFactory implementation that validates the
+ * cache with an arbitrary set of ResourceCheckers.
+ *
+ * @author Matthias Pigulla <mp@webfactory.de>
+ */
+class ResourceCheckerConfigCacheFactory implements ConfigCacheFactoryInterface
+{
+    private iterable $resourceCheckers = [];
+
+    /**
+     * @param iterable<int, ResourceCheckerInterface> $resourceCheckers
+     */
+    public function __construct(iterable $resourceCheckers = [])
+    {
+        $this->resourceCheckers = $resourceCheckers;
+    }
+
+    public function cache(string $file, callable $callable): ConfigCacheInterface
+    {
+        $cache = new ResourceCheckerConfigCache($file, $this->resourceCheckers);
+        if (!$cache->isFresh()) {
+            $callable($cache);
+        }
+
+        return $cache;
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/ResourceCheckerInterface.php

@@ -0,0 +1,45 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config;
+
+use Symfony\Component\Config\Resource\ResourceInterface;
+
+/**
+ * Interface for ResourceCheckers.
+ *
+ * When a ResourceCheckerConfigCache instance is checked for freshness, all its associated
+ * metadata resources are passed to ResourceCheckers. The ResourceCheckers
+ * can then inspect the resources and decide whether the cache can be considered
+ * fresh or not.
+ *
+ * @author Matthias Pigulla <mp@webfactory.de>
+ * @author Benjamin Klotz <bk@webfactory.de>
+ */
+interface ResourceCheckerInterface
+{
+    /**
+     * Queries the ResourceChecker whether it can validate a given
+     * resource or not.
+     *
+     * @return bool
+     */
+    public function supports(ResourceInterface $metadata);
+
+    /**
+     * Validates the resource.
+     *
+     * @param int $timestamp The timestamp at which the cache associated with this resource was created
+     *
+     * @return bool
+     */
+    public function isFresh(ResourceInterface $resource, int $timestamp);
+}

plugins/simplesaml/lib/vendor/symfony/config/Util/Exception/InvalidXmlException.php

@@ -0,0 +1,22 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Util\Exception;
+
+/**
+ * Exception class for when XML parsing with an XSD schema file path or a callable validator produces errors unrelated
+ * to the actual XML parsing.
+ *
+ * @author Ole Rößner <ole@roessner.it>
+ */
+class InvalidXmlException extends XmlParsingException
+{
+}

plugins/simplesaml/lib/vendor/symfony/config/Util/Exception/XmlParsingException.php

@@ -0,0 +1,21 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Util\Exception;
+
+/**
+ * Exception class for when XML cannot be parsed properly.
+ *
+ * @author Ole Rößner <ole@roessner.it>
+ */
+class XmlParsingException extends \InvalidArgumentException
+{
+}

plugins/simplesaml/lib/vendor/symfony/config/Util/XmlUtils.php

@@ -0,0 +1,272 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Util;
+
+use Symfony\Component\Config\Util\Exception\InvalidXmlException;
+use Symfony\Component\Config\Util\Exception\XmlParsingException;
+
+/**
+ * XMLUtils is a bunch of utility methods to XML operations.
+ *
+ * This class contains static methods only and is not meant to be instantiated.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ * @author Martin Hasoň <martin.hason@gmail.com>
+ * @author Ole Rößner <ole@roessner.it>
+ */
+class XmlUtils
+{
+    /**
+     * This class should not be instantiated.
+     */
+    private function __construct()
+    {
+    }
+
+    /**
+     * Parses an XML string.
+     *
+     * @param string               $content          An XML string
+     * @param string|callable|null $schemaOrCallable An XSD schema file path, a callable, or null to disable validation
+     *
+     * @throws XmlParsingException When parsing of XML file returns error
+     * @throws InvalidXmlException When parsing of XML with schema or callable produces any errors unrelated to the XML parsing itself
+     * @throws \RuntimeException   When DOM extension is missing
+     */
+    public static function parse(string $content, string|callable|null $schemaOrCallable = null): \DOMDocument
+    {
+        if (!\extension_loaded('dom')) {
+            throw new \LogicException('Extension DOM is required.');
+        }
+
+        $internalErrors = libxml_use_internal_errors(true);
+        libxml_clear_errors();
+
+        $dom = new \DOMDocument();
+        $dom->validateOnParse = true;
+        if (!$dom->loadXML($content, \LIBXML_NONET | \LIBXML_COMPACT)) {
+            throw new XmlParsingException(implode("\n", static::getXmlErrors($internalErrors)));
+        }
+
+        $dom->normalizeDocument();
+
+        libxml_use_internal_errors($internalErrors);
+
+        foreach ($dom->childNodes as $child) {
+            if (\XML_DOCUMENT_TYPE_NODE === $child->nodeType) {
+                throw new XmlParsingException('Document types are not allowed.');
+            }
+        }
+
+        if (null !== $schemaOrCallable) {
+            $internalErrors = libxml_use_internal_errors(true);
+            libxml_clear_errors();
+
+            $e = null;
+            if (\is_callable($schemaOrCallable)) {
+                try {
+                    $valid = $schemaOrCallable($dom, $internalErrors);
+                } catch (\Exception $e) {
+                    $valid = false;
+                }
+            } elseif (is_file($schemaOrCallable)) {
+                $schemaSource = file_get_contents((string) $schemaOrCallable);
+                $valid = @$dom->schemaValidateSource($schemaSource);
+            } else {
+                libxml_use_internal_errors($internalErrors);
+
+                throw new XmlParsingException(sprintf('Invalid XSD file: "%s".', $schemaOrCallable));
+            }
+
+            if (!$valid) {
+                $messages = static::getXmlErrors($internalErrors);
+                if (!$messages) {
+                    throw new InvalidXmlException('The XML is not valid.', 0, $e);
+                }
+                throw new XmlParsingException(implode("\n", $messages), 0, $e);
+            }
+        }
+
+        libxml_clear_errors();
+        libxml_use_internal_errors($internalErrors);
+
+        return $dom;
+    }
+
+    /**
+     * Loads an XML file.
+     *
+     * @param string               $file             An XML file path
+     * @param string|callable|null $schemaOrCallable An XSD schema file path, a callable, or null to disable validation
+     *
+     * @throws \InvalidArgumentException When loading of XML file returns error
+     * @throws XmlParsingException       When XML parsing returns any errors
+     * @throws \RuntimeException         When DOM extension is missing
+     */
+    public static function loadFile(string $file, string|callable|null $schemaOrCallable = null): \DOMDocument
+    {
+        if (!is_file($file)) {
+            throw new \InvalidArgumentException(sprintf('Resource "%s" is not a file.', $file));
+        }
+
+        if (!is_readable($file)) {
+            throw new \InvalidArgumentException(sprintf('File "%s" is not readable.', $file));
+        }
+
+        $content = @file_get_contents($file);
+
+        if ('' === trim($content)) {
+            throw new \InvalidArgumentException(sprintf('File "%s" does not contain valid XML, it is empty.', $file));
+        }
+
+        try {
+            return static::parse($content, $schemaOrCallable);
+        } catch (InvalidXmlException $e) {
+            throw new XmlParsingException(sprintf('The XML file "%s" is not valid.', $file), 0, $e->getPrevious());
+        }
+    }
+
+    /**
+     * Converts a \DOMElement object to a PHP array.
+     *
+     * The following rules applies during the conversion:
+     *
+     *  * Each tag is converted to a key value or an array
+     *    if there is more than one "value"
+     *
+     *  * The content of a tag is set under a "value" key (<foo>bar</foo>)
+     *    if the tag also has some nested tags
+     *
+     *  * The attributes are converted to keys (<foo foo="bar"/>)
+     *
+     *  * The nested-tags are converted to keys (<foo><foo>bar</foo></foo>)
+     *
+     * @param \DOMElement $element     A \DOMElement instance
+     * @param bool        $checkPrefix Check prefix in an element or an attribute name
+     */
+    public static function convertDomElementToArray(\DOMElement $element, bool $checkPrefix = true): mixed
+    {
+        $prefix = (string) $element->prefix;
+        $empty = true;
+        $config = [];
+        foreach ($element->attributes as $name => $node) {
+            if ($checkPrefix && !\in_array((string) $node->prefix, ['', $prefix], true)) {
+                continue;
+            }
+            $config[$name] = static::phpize($node->value);
+            $empty = false;
+        }
+
+        $nodeValue = false;
+        foreach ($element->childNodes as $node) {
+            if ($node instanceof \DOMText) {
+                if ('' !== trim($node->nodeValue)) {
+                    $nodeValue = trim($node->nodeValue);
+                    $empty = false;
+                }
+            } elseif ($checkPrefix && $prefix != (string) $node->prefix) {
+                continue;
+            } elseif (!$node instanceof \DOMComment) {
+                $value = static::convertDomElementToArray($node, $checkPrefix);
+
+                $key = $node->localName;
+                if (isset($config[$key])) {
+                    if (!\is_array($config[$key]) || !\is_int(key($config[$key]))) {
+                        $config[$key] = [$config[$key]];
+                    }
+                    $config[$key][] = $value;
+                } else {
+                    $config[$key] = $value;
+                }
+
+                $empty = false;
+            }
+        }
+
+        if (false !== $nodeValue) {
+            $value = static::phpize($nodeValue);
+            if (\count($config)) {
+                $config['value'] = $value;
+            } else {
+                $config = $value;
+            }
+        }
+
+        return !$empty ? $config : null;
+    }
+
+    /**
+     * Converts an xml value to a PHP type.
+     */
+    public static function phpize(string|\Stringable $value): mixed
+    {
+        $value = (string) $value;
+        $lowercaseValue = strtolower($value);
+
+        switch (true) {
+            case 'null' === $lowercaseValue:
+                return null;
+            case ctype_digit($value):
+            case isset($value[1]) && '-' === $value[0] && ctype_digit(substr($value, 1)):
+                $raw = $value;
+                $cast = (int) $value;
+
+                return self::isOctal($value) ? \intval($value, 8) : (($raw === (string) $cast) ? $cast : $raw);
+            case 'true' === $lowercaseValue:
+                return true;
+            case 'false' === $lowercaseValue:
+                return false;
+            case isset($value[1]) && '0b' == $value[0].$value[1] && preg_match('/^0b[01]*$/', $value):
+                return bindec($value);
+            case is_numeric($value):
+                return '0x' === $value[0].$value[1] ? hexdec($value) : (float) $value;
+            case preg_match('/^0x[0-9a-f]++$/i', $value):
+                return hexdec($value);
+            case preg_match('/^[+-]?[0-9]+(\.[0-9]+)?$/', $value):
+                return (float) $value;
+            default:
+                return $value;
+        }
+    }
+
+    /**
+     * @return array
+     */
+    protected static function getXmlErrors(bool $internalErrors)
+    {
+        $errors = [];
+        foreach (libxml_get_errors() as $error) {
+            $errors[] = sprintf('[%s %s] %s (in %s - line %d, column %d)',
+                \LIBXML_ERR_WARNING == $error->level ? 'WARNING' : 'ERROR',
+                $error->code,
+                trim($error->message),
+                $error->file ?: 'n/a',
+                $error->line,
+                $error->column
+            );
+        }
+
+        libxml_clear_errors();
+        libxml_use_internal_errors($internalErrors);
+
+        return $errors;
+    }
+
+    private static function isOctal(string $str): bool
+    {
+        if ('-' === $str[0]) {
+            $str = substr($str, 1);
+        }
+
+        return $str === '0'.decoct(\intval($str, 8));
+    }
+}

plugins/simplesaml/lib/vendor/symfony/config/composer.json

@@ -0,0 +1,42 @@
+{
+    "name": "symfony/config",
+    "type": "library",
+    "description": "Helps you find, load, combine, autofill and validate configuration values of any kind",
+    "keywords": [],
+    "homepage": "https://symfony.com",
+    "license": "MIT",
+    "authors": [
+        {
+            "name": "Fabien Potencier",
+            "email": "fabien@symfony.com"
+        },
+        {
+            "name": "Symfony Community",
+            "homepage": "https://symfony.com/contributors"
+        }
+    ],
+    "require": {
+        "php": ">=8.1",
+        "symfony/deprecation-contracts": "^2.5|^3",
+        "symfony/filesystem": "^5.4|^6.0|^7.0",
+        "symfony/polyfill-ctype": "~1.8"
+    },
+    "require-dev": {
+        "symfony/event-dispatcher": "^5.4|^6.0|^7.0",
+        "symfony/finder": "^5.4|^6.0|^7.0",
+        "symfony/messenger": "^5.4|^6.0|^7.0",
+        "symfony/service-contracts": "^2.5|^3",
+        "symfony/yaml": "^5.4|^6.0|^7.0"
+    },
+    "conflict": {
+        "symfony/finder": "<5.4",
+        "symfony/service-contracts": "<2.5"
+    },
+    "autoload": {
+        "psr-4": { "Symfony\\Component\\Config\\": "" },
+        "exclude-from-classmap": [
+            "/Tests/"
+        ]
+    },
+    "minimum-stability": "dev"
+}