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GNU LESSER GENERAL PUBLIC LICENSE
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# Assert
![Build Status](https://github.com/simplesamlphp/assert/actions/workflows/php.yml/badge.svg)
[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/simplesamlphp/assert/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/simplesamlphp/assert/?branch=master)
[![Coverage Status](https://codecov.io/gh/simplesamlphp/assert/branch/master/graph/badge.svg)](https://codecov.io/gh/simplesamlphp/assert)
[![PHPStan Enabled](https://img.shields.io/badge/PHPStan-enabled-brightgreen.svg?style=flat)](https://github.com/simplesamlphp/assert)
## Background
A wrapper around webmozart/assert to make it useful beyond checking method
arguments. One of the major reasons to come up with this fork was our
requirement to be able to throw custom exceptions, instead of _everything_
being thrown as a generic `InvalidArgumentException`.
Using a `__callStatic` wrapper we are able to wrap the webmozart-methods
allowing for an extra `exception` parameter, and catch the
`InvalidArgumentException` by the original library, then throw the desired
exception, or fall back to our custom `AssertionFailedException`.
In practise, this means that _every_ assertion provided by the original library
can be used an provided with an additional parameter. If you provide it, and it
translates into a `Throwable` class, that is what will be thrown as soon as the
assertion fails. If you don't pass the the extra parameter, we will throw the
more generic `AssertionFailedException` (which in our opinion is still better
than the even _more_ generic `InvalidArgumentException`).
We also felt that `InvalidArgumentException` is incorrect to use in this case.
This exception was intended by PHP to be thrown when a function parameter is of
the wrong type. Our custom `AssertionFailedException` therefore inherits from
`UnexpectedValueException` which is intended to verify values against valid
value sets, possibly during the internal computations of a function. We deem
this much more appropriate for use in assertions.
## Custom Assertions
Another reason to fork is the ability to add a few custom assertions that may
only make sense for XML / SAML2 related things.
Currently this library provides the following additional assertions:
### Assertions
Method | Description
-----------------------------------------------------------------------------|-----------------------------------------------------------------
`stringPlausibleBase64($value, $message = '', ?Throwable $exception = null)` | Check that a value is plausibly base64
`validDateTime($value, $message = '', ?Throwable $exception = null)` | Check that a value is a valid ISO8601 compliant DateTime
`notInArray($value, $values, $message = '', ?Throwable $exception = null)` | Check that a value is _NOT_ one of a list of values
`validURI($value, $message = '', ?Throwable $exception = null)` | Check that a value is a valid RFC3986 URI
`validURL($value, $message = '', ?Throwable $exception = null)` | Check that a value is a valid RFC2396 URL
`validURN($value, $message = '', ?Throwable $exception = null)` | Check that a value is a valid RFC8141 URN
`validNCName($value, $message = '', ?Throwable $exception = null)` | Check that a value is a valid xs:NCName
`validQName($value, $message = '', ?Throwable $exception = null)` | Check that a value is a valid xs:QName
`validDuration($value, $message = '', ?Throwable $exception = null)` | Check that a value is a xs:duration
`validNMTokens($value, $message = '', ?Throwable $exception = null)` | Check that a value is a xs:NMTokens
`validNMToken($value, $message = '', ?Throwable $exception = null)` | Check that a value is a xs:NMToken
`validHexBinary($value, $message = '', ?Throwable $exception = null)` | Check that a value is a xs:hexBinary

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{
"name": "simplesamlphp/assert",
"description": "A wrapper around webmozart/assert to make it useful beyond checking method arguments",
"license": "LGPL-2.1-or-later",
"authors": [
{
"name": "Tim van Dijen",
"email": "tvdijen@gmail.com"
},
{
"name": "Jaime Perez Crespo",
"email": "jaimepc@gmail.com"
}
],
"require": {
"php": "^8.1",
"ext-date": "*",
"ext-filter": "*",
"ext-pcre": "*",
"ext-spl": "*",
"guzzlehttp/psr7": "~2.7.0",
"webmozart/assert": "~1.11.0"
},
"require-dev": {
"ext-intl": "*",
"simplesamlphp/simplesamlphp-test-framework": "~1.8.0"
},
"autoload": {
"psr-4": {
"SimpleSAML\\Assert\\": "src/"
}
},
"autoload-dev": {
"psr-4": {
"SimpleSAML\\Test\\Assert\\": "tests/Assert/",
"SimpleSAML\\Test\\Utils\\": "tests/Utils/"
}
},
"extra": {
"branch-alias": {
"dev-master": "v1.1.x-dev"
}
},
"config": {
"allow-plugins": {
"composer/package-versions-deprecated": true,
"dealerdirect/phpcodesniffer-composer-installer": true,
"simplesamlphp/composer-module-installer": false,
"phpstan/extension-installer": true
}
}
}

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<?php
declare(strict_types=1);
namespace SimpleSAML\Assert;
use BadMethodCallException; // Requires ext-spl
use DateTime; // Requires ext-date
use DateTimeImmutable; // Requires ext-date
use InvalidArgumentException; // Requires ext-spl
use Throwable;
use Webmozart\Assert\Assert as Webmozart;
use function array_pop;
use function array_unshift;
use function call_user_func_array;
use function end;
use function enum_exists;
use function function_exists;
use function get_class;
use function is_object;
use function is_resource;
use function is_string;
use function is_subclass_of;
use function lcfirst;
use function method_exists;
use function preg_match; // Requires ext-pcre
use function strval;
/**
* Webmozart\Assert wrapper class
*
* @package simplesamlphp/assert
*
* @method static void string(mixed $value, string $message = '', string $exception = '')
* @method static void stringNotEmpty(mixed $value, string $message = '', string $exception = '')
* @method static void integer(mixed $value, string $message = '', string $exception = '')
* @method static void integerish(mixed $value, string $message = '', string $exception = '')
* @method static void positiveInteger(mixed $value, string $message = '', string $exception = '')
* @method static void float(mixed $value, string $message = '', string $exception = '')
* @method static void numeric(mixed $value, string $message = '', string $exception = '')
* @method static void natural(mixed $value, string $message = '', string $exception = '')
* @method static void boolean(mixed $value, string $message = '', string $exception = '')
* @method static void scalar(mixed $value, string $message = '', string $exception = '')
* @method static void object(mixed $value, string $message = '', string $exception = '')
* @method static void resource(mixed $value, string|null $type, string $message = '', string $exception = '')
* @method static void isCallable(mixed $value, string $message = '', string $exception = '')
* @method static void isArray(mixed $value, string $message = '', string $exception = '')
* @method static void isTraversable(mixed $value, string $message = '', string $exception = '')
* @method static void isArrayAccessible(mixed $value, string $message = '', string $exception = '')
* @method static void isCountable(mixed $value, string $message = '', string $exception = '')
* @method static void isIterable(mixed $value, string $message = '', string $exception = '')
* @method static void isInstanceOf(mixed $value, string|object $class, string $message = '', string $exception = '')
* @method static void notInstanceOf(mixed $value, string|object $class, string $message = '', string $exception = '')
* @method static void isInstanceOfAny(mixed $value, array $classes, string $message = '', string $exception = '')
* @method static void isAOf(string|object $value, string $class, string $message = '', string $exception = '')
* @method static void isNotA(string|object $value, string $class, string $message = '', string $exception = '')
* @method static void isAnyOf(string|object $value, string[] $classes, string $message = '', string $exception = '')
* @method static void isEmpty(mixed $value, string $message = '', string $exception = '')
* @method static void notEmpty(mixed $value, string $message = '', string $exception = '')
* @method static void null(mixed $value, string $message = '', string $exception = '')
* @method static void notNull(mixed $value, string $message = '', string $exception = '')
* @method static void true(mixed $value, string $message = '', string $exception = '')
* @method static void false(mixed $value, string $message = '', string $exception = '')
* @method static void notFalse(mixed $value, string $message = '', string $exception = '')
* @method static void ip(mixed $value, string $message = '', string $exception = '')
* @method static void ipv4(mixed $value, string $message = '', string $exception = '')
* @method static void ipv6(mixed $value, string $message = '', string $exception = '')
* @method static void email(mixed $value, string $message = '', string $exception = '')
* @method static void uniqueValues(array $values, string $message = '', string $exception = '')
* @method static void eq(mixed $value, mixed $expect, string $message = '', string $exception = '')
* @method static void notEq(mixed $value, mixed $expect, string $message = '', string $exception = '')
* @method static void same(mixed $value, mixed $expect, string $message = '', string $exception = '')
* @method static void notSame(mixed $value, mixed $expect, string $message = '', string $exception = '')
* @method static void greaterThan(mixed $value, mixed $limit, string $message = '', string $exception = '')
* @method static void greaterThanEq(mixed $value, mixed $limit, string $message = '', string $exception = '')
* @method static void lessThan(mixed $value, mixed $limit, string $message = '', string $exception = '')
* @method static void lessThanEq(mixed $value, mixed $limit, string $message = '', string $exception = '')
* @method static void range(mixed $value, mixed $min, mixed $max, string $message = '', string $exception = '')
* @method static void oneOf(mixed $value, array $values, string $message = '', string $exception = '')
* @method static void inArray(mixed $value, mixed $values, string $message = '', string $exception = '')
* @method static void contains(string $value, string $subString, string $message = '', string $exception = '')
* @method static void notContains(string $value, string $subString, string $message = '', string $exception = '')
* @method static void notWhitespaceOnly($value, string $message = '', string $exception = '')
* @method static void startsWith(string $value, string $prefix, string $message = '', string $exception = '')
* @method static void notStartsWith(string $value, string $prefix, string $message = '', string $exception = '')
* @method static void startsWithLetter(mixed $value, string $message = '', string $exception = '')
* @method static void endsWith(string $value, string $suffix, string $message = '', string $exception = '')
* @method static void notEndsWith(string $value, string $suffix, string $message = '', string $exception = '')
* @method static void regex(string $value, string $pattern, string $message = '', string $exception = '')
* @method static void notRegex(string $value, string $pattern, string $message = '', string $exception = '')
* @method static void unicodeLetters(mixed $value, string $message = '', string $exception = '')
* @method static void alpha(mixed $value, string $message = '', string $exception = '')
* @method static void digits(string $value, string $message = '', string $exception = '')
* @method static void alnum(string $value, string $message = '', string $exception = '')
* @method static void lower(string $value, string $message = '', string $exception = '')
* @method static void upper(string $value, string $message = '', string $exception = '')
* @method static void length(string $value, int $length, string $message = '', string $exception = '')
* @method static void minLength(string $value, int|float $min, string $message = '', string $exception = '')
* @method static void maxLength(string $value, int|float $max, string $message = '', string $exception = '')
* @method static void lengthBetween(string $value, int|float $min, int|float $max, string $message = '', string $exception = '')
* @method static void fileExists(mixed $value, string $message = '', string $exception = '')
* @method static void file(mixed $value, string $message = '', string $exception = '')
* @method static void directory(mixed $value, string $message = '', string $exception = '')
* @method static void readable(string $value, string $message = '', string $exception = '')
* @method static void writable(string $value, string $message = '', string $exception = '')
* @method static void classExists(mixed $value, string $message = '', string $exception = '')
* @method static void subclassOf(mixed $value, string|object $class, string $message = '', string $exception = '')
* @method static void interfaceExists(mixed $value, string $message = '', string $exception = '')
* @method static void implementsInterface(mixed $value, mixed $interface, string $message = '', string $exception = '')
* @method static void propertyExists(string|object $classOrObject, mixed $property, string $message = '', string $exception = '')
* @method static void propertyNotExists(string|object $classOrObject, mixed $property, string $message = '', string $exception = '')
* @method static void methodExists(string|object $classOrObject, mixed $method, string $message = '', string $exception = '')
* @method static void methodNotExists(string|object $classOrObject, mixed $method, string $message = '', string $exception = '')
* @method static void keyExists(array $array, string|int $key, string $message = '', string $exception = '')
* @method static void keyNotExists(array $array, string|int $key, string $message = '', string $exception = '')
* @method static void validArrayKey($value, string $message = '', string $exception = '')
* @method static void count(Countable|array $array, int $number, string $message = '', string $exception = '')
* @method static void minCount(Countable|array $array, int|float $min, string $message = '', string $exception = '')
* @method static void maxCount(Countable|array $array, int|float $max, string $message = '', string $exception = '')
* @method static void countBetween(Countable|array $array, int|float $min, int|float $max, string $message = '', string $exception = '')
* @method static void isList(mixed $array, string $message = '', string $exception = '')
* @method static void isNonEmptyList(mixed $array, string $message = '', string $exception = '')
* @method static void isMap(mixed $array, string $message = '', string $exception = '')
* @method static void isNonEmptyMap(mixed $array, string $message = '', string $exception = '')
* @method static void uuid(string $value, string $message = '', string $exception = '')
* @method static void throws(Closure $expression, string $class = 'Exception', string $message = '', string $exception = '')
*
* @method static void nullOrString(mixed $value, string $message = '', string $exception = '')
* @method static void allString(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrStringNotEmpty(mixed $value, string $message = '', string $exception = '')
* @method static void allOrStringNotEmpty(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrInteger(mixed $value, string $message = '', string $exception = '')
* @method static void allInteger(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrIntegerish(mixed $value, string $message = '', string $exception = '')
* @method static void allIntegerish(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrPositiveInteger(mixed $value, string $message = '', string $exception = '')
* @method static void allPositiveInteger(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrFloat(mixed $value, string $message = '', string $exception = '')
* @method static void allFloat(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrNumeric(mixed $value, string $message = '', string $exception = '')
* @method static void allNumeric(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrNatural(mixed $value, string $message = '', string $exception = '')
* @method static void allNatural(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrBoolean(mixed $value, string $message = '', string $exception = '')
* @method static void allBoolean(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrScalar(mixed $value, string $message = '', string $exception = '')
* @method static void allScalar(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrObject(mixed $value, string $message = '', string $exception = '')
* @method static void allObject(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrResource(mixed $value, string|null $type, string $message = '', string $exception = '')
* @method static void allResource(mixed $value, string|null $type, string $message = '', string $exception = '')
* @method static void nullOrIsCallable(mixed $value, string $message = '', string $exception = '')
* @method static void allIsCallable(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrIsArray(mixed $value, string $message = '', string $exception = '')
* @method static void allIsArray(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrIsTraversable(mixed $value, string $message = '', string $exception = '')
* @method static void allIsTraversable(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrIsArrayAccessible(mixed $value, string $message = '', string $exception = '')
* @method static void allIsArrayAccessible(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrIsCountable(mixed $value, string $message = '', string $exception = '')
* @method static void allIsCountable(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrIsIterable(mixed $value, string $message = '', string $exception = '')
* @method static void allIsIterable(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrIsInstanceOf(mixed $value, string|object $class, string $message = '', string $exception = '')
* @method static void allIsInstanceOf(mixed $value, string|object $class, string $message = '', string $exception = '')
* @method static void nullOrNotInstanceOf(mixed $value, string|object $class, string $message = '', string $exception = '')
* @method static void allNotInstanceOf(mixed $value, string|object $class, string $message = '', string $exception = '')
* @method static void nullOrIsInstanceOfAny(mixed $value, array $classes, string $message = '', string $exception = '')
* @method static void allIsInstanceOfAny(mixed $value, array $classes, string $message = '', string $exception = '')
* @method static void nullOrIsAOf(object|string|null $value, string $class, string $message = '', string $exception = '')
* @method static void allIsAOf(object|string|null $value, string $class, string $message = '', string $exception = '')
* @method static void nullOrIsNotA(object|string|null $value, string $class, string $message = '', string $exception = '')
* @method static void allIsNotA(array $value, string $class, string $message = '', string $exception = '')
* @method static void nullOrIsAnyOf(object|string|null $value, string[] $classes, string $message = '', string $exception = '')
* @method static void allIsAnyOf(array $value, string[] $classes, string $message = '', string $exception = '')
* @method static void nullOrIsEmpty(mixed $value, string $message = '', string $exception = '')
* @method static void allIsEmpty(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrNotEmpty(mixed $value, string $message = '', string $exception = '')
* @method static void allNotEmpty(mixed $value, string $message = '', string $exception = '')
* @method static void allNull(mixed $value, string $message = '', string $exception = '')
* @method static void allNotNull(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrTrue(mixed $value, string $message = '', string $exception = '')
* @method static void allTrue(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrFalse(mixed $value, string $message = '', string $exception = '')
* @method static void allFalse(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrNotFalse(mixed $value, string $message = '', string $exception = '')
* @method static void allNotFalse(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrIp(mixed $value, string $message = '', string $exception = '')
* @method static void allIp(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrIpv4(mixed $value, string $message = '', string $exception = '')
* @method static void allIpv4(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrIpv6(mixed $value, string $message = '', string $exception = '')
* @method static void allIpv6(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrEmail(mixed $value, string $message = '', string $exception = '')
* @method static void allEmail(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrUniqueValues(array|null $values, string $message = '', string $exception = '')
* @method static void allUniqueValues(array $values, string $message = '', string $exception = '')
* @method static void nullOrEq(mixed $value, mixed $expect, string $message = '', string $exception = '')
* @method static void allEq(mixed $value, mixed $expect, string $message = '', string $exception = '')
* @method static void nullOrNotEq(mixed $value, mixed $expect, string $message = '', string $exception = '')
* @method static void allNotEq(mixed $value, mixed $expect, string $message = '', string $exception = '')
* @method static void nullOrSame(mixed $value, mixed $expect, string $message = '', string $exception = '')
* @method static void allSame(mixed $value, mixed $expect, string $message = '', string $exception = '')
* @method static void nullOrNotSame(mixed $value, mixed $expect, string $message = '', string $exception = '')
* @method static void allNotSame(mixed $value, mixed $expect, string $message = '', string $exception = '')
* @method static void nullOrGreaterThan(mixed $value, mixed $limit, string $message = '', string $exception = '')
* @method static void allGreaterThan(mixed $value, mixed $limit, string $message = '', string $exception = '')
* @method static void nullOrGreaterThanEq(mixed $value, mixed $limit, string $message = '', string $exception = '')
* @method static void allGreaterThanEq(mixed $value, mixed $limit, string $message = '', string $exception = '')
* @method static void nullOrLessThan(mixed $value, mixed $limit, string $message = '', string $exception = '')
* @method static void allLessThan(mixed $value, mixed $limit, string $message = '', string $exception = '')
* @method static void nullOrLessThanEq(mixed $value, mixed $limit, string $message = '', string $exception = '')
* @method static void allLessThanEq(mixed $value, mixed $limit, string $message = '', string $exception = '')
* @method static void nullOrRange(mixed $value, mixed $min, mixed $max, string $message = '', string $exception = '')
* @method static void allRange(mixed $value, mixed $min, mixed $max, string $message = '', string $exception = '')
* @method static void nullOrOneOf(mixed $value, array $values, string $message = '', string $exception = '')
* @method static void allOneOf(mixed $value, array $values, string $message = '', string $exception = '')
* @method static void nullOrInArray(mixed $value, array $values, string $message = '', string $exception = '')
* @method static void allInArray(mixed $value, array $values, string $message = '', string $exception = '')
* @method static void nullOrContains(string|null $value, string $subString, string $message = '', string $exception = '')
* @method static void allContains(string[] $value, string $subString, string $message = '', string $exception = '')
* @method static void nullOrNotContains(string|null $value, string $subString, string $message = '', string $exception = '')
* @method static void allNotContains(string[] $value, string $subString, string $message = '', string $exception = '')
* @method static void nullOrNotWhitespaceOnly(string|null $value, string $message = '', string $exception = '')
* @method static void allNotWhitespaceOnly(string[] $value, string $message = '', string $exception = '')
* @method static void nullOrStartsWith(string|null $value, string $prefix, string $message = '', string $exception = '')
* @method static void allStartsWith(string[] $value, string $prefix, string $message = '', string $exception = '')
* @method static void nullOrNotStartsWith(string|null $value, string $prefix, string $message = '', string $exception = '')
* @method static void allNotStartsWith(string[] $value, string $prefix, string $message = '', string $exception = '')
* @method static void nullOrStartsWithLetter(mixed $value, string $message = '', string $exception = '')
* @method static void allStartsWithLetter(string[] $value, string $message = '', string $exception = '')
* @method static void nullOrEndsWith(string|null $value, string $suffix, string $message = '', string $exception = '')
* @method static void allEndsWith(string[] $value, string $suffix, string $message = '', string $exception = '')
* @method static void nullOrNotEndsWith(string|null $value, string $suffix, string $message = '', string $exception = '')
* @method static void allNotEndsWith(string[] $value, string $suffix, string $message = '', string $exception = '')
* @method static void nullOrRegex(string|null $value, string $prefix, string $message = '', string $exception = '')
* @method static void allRegex(string[] $value, string $prefix, string $message = '', string $exception = '')
* @method static void nullOrNotRegex(string|null $value, string $prefix, string $message = '', string $exception = '')
* @method static void allNotRegex(string[] $value, string $prefix, string $message = '', string $exception = '')
* @method static void nullOrUnicodeLetters(mixed $value, string $message = '', string $exception = '')
* @method static void allUnicodeLetters(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrAlpha(mixed $value, string $message = '', string $exception = '')
* @method static void allAlpha(string[] $value, string $message = '', string $exception = '')
* @method static void nullOrDigits(string|null $value, string $message = '', string $exception = '')
* @method static void allDigits(string[] $value, string $message = '', string $exception = '')
* @method static void nullOrAlnum(string|null $value, string $message = '', string $exception = '')
* @method static void allAlnum(string[] $value, string $message = '', string $exception = '')
* @method static void nullOrLower(string|null $value, string $message = '', string $exception = '')
* @method static void allLower(string[] $value, string $message = '', string $exception = '')
* @method static void nullOrUpper(string|null $value, string $message = '', string $exception = '')
* @method static void allUpper(string[] $value, string $message = '', string $exception = '')
* @method static void nullOrLength(string|null $value, int $length, string $message = '', string $exception = '')
* @method static void allLength(string[] $value, int $length, string $message = '', string $exception = '')
* @method static void nullOrMinLength(string|null $value, int|float $min, string $message = '', string $exception = '')
* @method static void allMinLength(string[] $value, int|float $min, string $message = '', string $exception = '')
* @method static void nullOrMaxLength(string|null $value, int|float $max, string $message = '', string $exception = '')
* @method static void allMaxLength(string[] $value, int|float $max, string $message = '', string $exception = '')
* @method static void nullOrLengthBetween(string|null $value, int|float $min, int|float $max, string $message = '', string $exception = '')
* @method static void allLengthBetween(string[] $value, int|float $min, int|float $max, string $message = '', string $exception = '')
* @method static void nullOrFileExists(mixed $value, string $message = '', string $exception = '')
* @method static void allFileExists(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrFile(mixed $value, string $message = '', string $exception = '')
* @method static void allFile(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrDirectory(mixed $value, string $message = '', string $exception = '')
* @method static void allDirectory(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrReadable(string|null $value, string $message = '', string $exception = '')
* @method static void allReadable(string[] $value, string $message = '', string $exception = '')
* @method static void nullOrWritable(string|null $value, string $message = '', string $exception = '')
* @method static void allWritable(string[] $value, string $message = '', string $exception = '')
* @method static void nullOrClassExists(mixed $value, string $message = '', string $exception = '')
* @method static void allClassExists(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrSubclassOf(mixed $value, string|object $class, string $message = '', string $exception = '')
* @method static void allSubclassOf(mixed $value, string|object $class, string $message = '', string $exception = '')
* @method static void nullOrInterfaceExists(mixed $value, string $message = '', string $exception = '')
* @method static void allInterfaceExists(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrImplementsInterface(mixed $value, mixed $interface, string $message = '', string $exception = '')
* @method static void allImplementsInterface(mixed $value, mixed $interface, string $message = '', string $exception = '')
* @method static void nullOrPropertyExists(string|object|null $classOrObject, mixed $property, string $message = '', string $exception = '')
* @method static void allPropertyExists(array $classOrObject, mixed $property, string $message = '', string $exception = '')
* @method static void nullOrPropertyNotExists(string|object|null $classOrObject, mixed $property, string $message = '', string $exception = '')
* @method static void allPropertyNotExists(array $classOrObject, mixed $property, string $message = '', string $exception = '')
* @method static void nullOrMethodExists(string|object|null $classOrObject, mixed $method, string $message = '', string $exception = '')
* @method static void allMethodExists(array $classOrObject, mixed $method, string $message = '', string $exception = '')
* @method static void nullOrMethodNotExists(string|object|null $classOrObject, mixed $method, string $message = '', string $exception = '')
* @method static void allMethodNotExists(array $classOrObject, mixed $method, string $message = '', string $exception = '')
* @method static void nullOrKeyExists(array|null $array, string|int $key, string $message = '', string $exception = '')
* @method static void allKeyExists(array $array, string|int $key, string $message = '', string $exception = '')
* @method static void nullOrKeyNotExists(array|null $array, string|int $key, string $message = '', string $exception = '')
* @method static void allKeyNotExists(array $array, string|int $key, string $message = '', string $exception = '')
* @method static void nullOrValidArrayKey(mixed $value, string $message = '', string $exception = '')
* @method static void allValidArrayKey(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrCount(Countable|array|null $array, int $number, string $message = '', string $exception = '')
* @method static void allCount(array $array, int $number, string $message = '', string $exception = '')
* @method static void nullOrMinCount(Countable|array|null $array, int|float $min, string $message = '', string $exception = '')
* @method static void allMinCount(array $array, int|float $min, string $message = '', string $exception = '')
* @method static void nullOrMaxCount(Countable|array|null $array, int|float $max, string $message = '', string $exception = '')
* @method static void allMaxCount(array $array, int|float $max, string $message = '', string $exception = '')
* @method static void nullOrCountBetween(Countable|array|null $array, int|float $min, int|float $max, string $message = '', string $exception = '')
* @method static void allCountBetween(array $array, int|float $min, int|float $max, string $message = '', string $exception = '')
* @method static void nullOrIsList(mixed $array, string $message = '', string $exception = '')
* @method static void allIsList(mixed $array, string $message = '', string $exception = '')
* @method static void nullOrIsNonEmptyList(mixed $array, string $message = '', string $exception = '')
* @method static void allIsNonEmptyList(mixed $array, string $message = '', string $exception = '')
* @method static void nullOrIsMap(mixed $array, string $message = '', string $exception = '')
* @method static void allIsMap(mixed $array, string $message = '', string $exception = '')
* @method static void nullOrIsNonEmptyMap(mixed $array, string $message = '', string $exception = '')
* @method static void allIsNonEmptyMap(mixed $array, string $message = '', string $exception = '')
* @method static void nullOrUuid(string|null $value, string $message = '', string $exception = '')
* @method static void allUuid(string[] $value, string $message = '', string $exception = '')
* @method static void nullOrThrows(Closure|null $expression, string $class, string $message = '', string $exception = '')
* @method static void allThrows(Closure[] $expression, string $class, string $message = '', string $exception = '')
*
* @method static void validBase64(mixed $value, string $message = '', string $exception = '')
* @method static void notInArray(mixed $value, array $values, string $message = '', string $exception = '')
* @method static void validURN(mixed $value, string $message = '', string $exception = '')
* @method static void validURI(mixed $value, string $message = '', string $exception = '')
* @method static void validURL(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrValidBase64(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrNotInArray(mixed $value, array $values, string $message = '', string $exception = '')
* @method static void nullOrValidURN(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrValidURI(mixed $value, string $message = '', string $exception = '')
* @method static void nullOrValidURL(mixed $value, string $message = '', string $exception = '')
* @method static void allValidBase64(mixed $value, string $message = '', string $exception = '')
* @method static void allNotInArray(mixed $value, array $values, string $message = '', string $exception = '')
* @method static void allValidURN(mixed $value, string $message = '', string $exception = '')
* @method static void allValidURI(mixed $value, string $message = '', string $exception = '')
* @method static void allValidURL(mixed $value, string $message = '', string $exception = '')
*/
class Assert
{
use Base64Trait;
use NotInArrayTrait;
use URITrait;
/**
* @param string $name
* @param array<mixed> $arguments
*/
public static function __callStatic(string $name, array $arguments): void
{
// Handle Exception-parameter
$exception = AssertionFailedException::class;
$last = end($arguments);
if (is_string($last) && class_exists($last) && is_subclass_of($last, Throwable::class)) {
$exception = $last;
array_pop($arguments);
}
try {
// Putting Webmozart first, since the most calls will be to their native assertions
if (method_exists(Webmozart::class, $name)) {
call_user_func_array([Webmozart::class, $name], $arguments);
return;
} elseif (method_exists(static::class, $name)) {
call_user_func_array([static::class, $name], $arguments);
return;
} elseif (preg_match('/^nullOr(.*)$/i', $name, $matches)) {
$method = lcfirst($matches[1]);
if (method_exists(Webmozart::class, $method)) {
call_user_func_array([static::class, 'nullOr'], [[Webmozart::class, $method], $arguments]);
} elseif (method_exists(static::class, $method)) {
call_user_func_array([static::class, 'nullOr'], [[static::class, $method], $arguments]);
} else {
throw new BadMethodCallException(sprintf("Assertion named `%s` does not exists.", $method));
}
} elseif (preg_match('/^all(.*)$/i', $name, $matches)) {
$method = lcfirst($matches[1]);
if (method_exists(Webmozart::class, $method)) {
call_user_func_array([static::class, 'all'], [[Webmozart::class, $method], $arguments]);
} elseif (method_exists(static::class, $method)) {
call_user_func_array([static::class, 'all'], [[static::class, $method], $arguments]);
} else {
throw new BadMethodCallException(sprintf("Assertion named `%s` does not exists.", $method));
}
} else {
throw new BadMethodCallException(sprintf("Assertion named `%s` does not exists.", $name));
}
} catch (InvalidArgumentException $e) {
throw new $exception($e->getMessage());
}
}
/**
* Handle nullOr* for either Webmozart or for our custom assertions
*
* @param callable $method
* @param array<mixed> $arguments
* @return void
*/
private static function nullOr(callable $method, array $arguments): void
{
$value = reset($arguments);
($value === null) || call_user_func_array($method, $arguments);
}
/**
* all* for our custom assertions
*
* @param callable $method
* @param array<mixed> $arguments
* @return void
*/
private static function all(callable $method, array $arguments): void
{
$values = array_pop($arguments);
foreach ($values as $value) {
$tmp = $arguments;
array_unshift($tmp, $value);
call_user_func_array($method, $tmp);
}
}
/**
* @param mixed $value
*
* @return string
*/
protected static function valueToString(mixed $value): string
{
if (is_resource($value)) {
return 'resource';
}
if (null === $value) {
return 'null';
}
if (true === $value) {
return 'true';
}
if (false === $value) {
return 'false';
}
if (is_array($value)) {
return 'array';
}
if (is_object($value)) {
if (method_exists($value, '__toString')) {
return $value::class . ': ' . self::valueToString($value->__toString());
}
if ($value instanceof DateTime || $value instanceof DateTimeImmutable) {
return $value::class . ': ' . self::valueToString($value->format('c'));
}
if (function_exists('enum_exists') && enum_exists(get_class($value))) {
return get_class($value) . '::' . $value->name;
}
return $value::class;
}
if (is_string($value)) {
return '"' . $value . '"';
}
return strval($value);
}
}

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<?php
declare(strict_types=1);
namespace SimpleSAML\Assert;
use UnexpectedValueException;
/**
* Generic exception for failing assertions.
* Applications may extend from it to create more specific exceptions.
*
* @package simplesamlphp/assert
*/
class AssertionFailedException extends UnexpectedValueException
{
}

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@@ -0,0 +1,64 @@
<?php
declare(strict_types=1);
namespace SimpleSAML\Assert;
use InvalidArgumentException;
use function base64_decode;
use function base64_encode;
use function filter_var;
use function sprintf;
use function strlen;
/**
* @package simplesamlphp/assert
*/
trait Base64Trait
{
/** @var string */
private static string $base64_regex = '/^(?:[a-z0-9+\/]{4})*(?:[a-z0-9+\/]{2}==|[a-z0-9+\/]{3}=)?$/i';
/***********************************************************************************
* NOTE: Custom assertions may be added below this line. *
* They SHOULD be marked as `protected` to ensure the call is forced *
* through __callStatic(). *
* Assertions marked `public` are called directly and will *
* not handle any custom exception passed to it. *
***********************************************************************************/
/**
* Note: This test is not bullet-proof but prevents a string containing illegal characters
* from being passed and ensures the string roughly follows the correct format for a Base64 encoded string
*
* @param string $value
* @param string $message
*/
protected static function validBase64(string $value, string $message = ''): void
{
$result = true;
if (filter_var($value, FILTER_VALIDATE_REGEXP, ['options' => ['regexp' => self::$base64_regex]]) === false) {
$result = false;
} elseif (strlen($value) % 4 !== 0) {
$result = false;
} else {
$decoded = base64_decode($value, true);
if (empty($decoded)) { // Invalid _or_ empty string
$result = false;
} elseif (base64_encode($decoded) !== $value) {
$result = false;
}
}
if ($result === false) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid Base64 encoded string',
$value,
));
}
}
}

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@@ -0,0 +1,268 @@
<?php
declare(strict_types=1);
namespace SimpleSAML\Assert;
use InvalidArgumentException;
use League\Uri\Exceptions\SyntaxError;
use League\Uri\UriString;
use function array_map;
use function base64_decode;
use function base64_encode;
use function filter_var;
use function implode;
use function in_array;
use function sprintf;
use function substr;
/**
* @package simplesamlphp/assert
*/
trait CustomAssertionTrait
{
/** @var string */
private static string $nmtoken_regex = '/^[\w.:-]+$/Du';
/** @var string */
private static string $nmtokens_regex = '/^([\w.:-]+)([\s][\w.:-]+)*$/Du';
/** @var string */
private static string $datetime_regex = '/-?[0-9]{4}-(((0(1|3|5|7|8)|1(0|2))-(0[1-9]|(1|2)[0-9]|3[0-1]))|((0(4|6|9)|11)-(0[1-9]|(1|2)[0-9]|30))|(02-(0[1-9]|(1|2)[0-9])))T([0-1][0-9]|2[0-4]):(0[0-9]|[1-5][0-9]):(0[0-9]|[1-5][0-9])(\.[0-999])?((\+|-)([0-1][0-9]|2[0-4]):(0[0-9]|[1-5][0-9])|Z)?/Di';
/** @var string */
private static string $duration_regex = '/^([-+]?)P(?!$)(?:(?<years>\d+(?:[\.\,]\d+)?)Y)?(?:(?<months>\d+(?:[\.\,]\d+)?)M)?(?:(?<weeks>\d+(?:[\.\,]\d+)?)W)?(?:(?<days>\d+(?:[\.\,]\d+)?)D)?(T(?=\d)(?:(?<hours>\d+(?:[\.\,]\d+)?)H)?(?:(?<minutes>\d+(?:[\.\,]\d+)?)M)?(?:(?<seconds>\d+(?:[\.\,]\d+)?)S)?)?$/D';
/** @var string */
private static string $qname_regex = '/^[a-zA-Z_][\w.-]*:[a-zA-Z_][\w.-]*$/D';
/** @var string */
private static string $ncname_regex = '/^[a-zA-Z_][\w.-]*$/D';
/** @var string */
private static string $base64_regex = '/^(?:[a-z0-9+\/]{4})*(?:[a-z0-9+\/]{2}==|[a-z0-9+\/]{3}=)?$/i';
/***********************************************************************************
* NOTE: Custom assertions may be added below this line. *
* They SHOULD be marked as `private` to ensure the call is forced *
* through __callStatic(). *
* Assertions marked `public` are called directly and will *
* not handle any custom exception passed to it. *
***********************************************************************************/
/**
* @param string $value
* @param string $message
*/
private static function validNMToken(string $value, string $message = ''): void
{
if (filter_var($value, FILTER_VALIDATE_REGEXP, ['options' => ['regexp' => self::$nmtoken_regex]]) === false) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid xs:NMTOKEN',
$value,
));
}
}
/**
* @param string $value
* @param string $message
*/
private static function validNMTokens(string $value, string $message = ''): void
{
if (filter_var($value, FILTER_VALIDATE_REGEXP, ['options' => ['regexp' => self::$nmtokens_regex]]) === false) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid xs:NMTOKENS',
$value,
));
}
}
/**
* @param string $value
* @param string $message
*/
private static function validDuration(string $value, string $message = ''): void
{
if (filter_var($value, FILTER_VALIDATE_REGEXP, ['options' => ['regexp' => self::$duration_regex]]) === false) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid xs:duration',
$value,
));
}
}
/**
* Note: This test is not bullet-proof but prevents a string containing illegal characters
* from being passed and ensures the string roughly follows the correct format for a Base64 encoded string
*
* @param string $value
* @param string $message
*/
private static function stringPlausibleBase64(string $value, string $message = ''): void
{
$result = true;
if (filter_var($value, FILTER_VALIDATE_REGEXP, ['options' => ['regexp' => self::$base64_regex]]) === false) {
$result = false;
} elseif (strlen($value) % 4 !== 0) {
$result = false;
} else {
$decoded = base64_decode($value, true);
if (empty($decoded)) { // Invalid _or_ empty string
$result = false;
} elseif (base64_encode($decoded) !== $value) {
$result = false;
}
}
if ($result === false) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid Base64 encoded string',
$value,
));
}
}
/**
* @param string $value
* @param string $message
*/
private static function validDateTime(string $value, string $message = ''): void
{
if (filter_var($value, FILTER_VALIDATE_REGEXP, ['options' => ['regexp' => self::$datetime_regex]]) === false) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid xs:dateTime',
$value,
));
}
}
/**
* @param mixed $value
* @param array<mixed> $values
* @param string $message
*/
private static function notInArray($value, array $values, string $message = ''): void
{
if (in_array($value, $values, true)) {
$callable = /** @param mixed $val */function ($val) {
return self::valueToString($val);
};
throw new InvalidArgumentException(sprintf(
$message ?: 'Expected none of: %2$s. Got: %s',
self::valueToString($value),
implode(', ', array_map($callable, $values)),
));
}
}
/**
* @param string $value
* @param string $message
*/
private static function validURN(string $value, string $message = ''): void
{
try {
$uri = UriString::parse($value);
} catch (SyntaxError $e) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid RFC3986 compliant URI',
$value,
));
}
if (
$uri['scheme'] !== 'urn'
|| (($uri['scheme'] !== null) && $uri['path'] !== substr($value, strlen($uri['scheme']) + 1))
) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid RFC8141 compliant URN',
$value,
));
}
}
/**
* @param string $value
* @param string $message
*/
private static function validURL(string $value, string $message = ''): void
{
try {
$uri = UriString::parse($value);
} catch (SyntaxError $e) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid RFC3986 compliant URI',
$value,
));
}
if ($uri['scheme'] !== 'http' && $uri['scheme'] !== 'https') {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid RFC2396 compliant URL',
$value,
));
}
}
/**
* @param string $value
* @param string $message
*/
private static function validURI(string $value, string $message = ''): void
{
try {
UriString::parse($value);
} catch (SyntaxError $e) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid RFC3986 compliant URI',
$value,
));
}
}
/**
* @param string $value
* @param string $message
*/
private static function validNCName(string $value, string $message = ''): void
{
if (filter_var($value, FILTER_VALIDATE_REGEXP, ['options' => ['regexp' => self::$ncname_regex]]) === false) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid non-colonized name (NCName)',
$value,
));
}
}
/**
* @param string $value
* @param string $message
*/
private static function validQName(string $value, string $message = ''): void
{
if (
filter_var($value, FILTER_VALIDATE_REGEXP, ['options' => ['regexp' => self::$qname_regex]]) === false &&
filter_var($value, FILTER_VALIDATE_REGEXP, ['options' => ['regexp' => self::$ncname_regex]]) === false
) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid qualified name (QName)',
$value,
));
}
}
}

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<?php
declare(strict_types=1);
namespace SimpleSAML\Assert;
use InvalidArgumentException;
use function array_map;
use function implode;
use function in_array;
use function sprintf;
/**
* @package simplesamlphp/assert
*/
trait NotInArrayTrait
{
/***********************************************************************************
* NOTE: Custom assertions may be added below this line. *
* They SHOULD be marked as `protected` to ensure the call is forced *
* through __callStatic(). *
* Assertions marked `public` are called directly and will *
* not handle any custom exception passed to it. *
***********************************************************************************/
/**
* @param mixed $value
* @param array<mixed> $values
* @param string $message
*/
protected static function notInArray($value, array $values, string $message = ''): void
{
if (in_array($value, $values, true)) {
$callable = function (mixed $val) {
return self::valueToString($val);
};
throw new InvalidArgumentException(sprintf(
$message ?: 'Expected none of: %2$s. Got: %s',
self::valueToString($value),
implode(', ', array_map($callable, $values)),
));
}
}
}

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@@ -0,0 +1,95 @@
<?php
declare(strict_types=1);
namespace SimpleSAML\Assert;
use GuzzleHttp\Psr7\Exception\MalformedUriException;
use GuzzleHttp\Psr7\Uri;
use InvalidArgumentException;
use function sprintf;
use function strlen;
use function substr;
/**
* @package simplesamlphp/assert
*/
trait URITrait
{
/***********************************************************************************
* NOTE: Custom assertions may be added below this line. *
* They SHOULD be marked as `protected` to ensure the call is forced *
* through __callStatic(). *
* Assertions marked `public` are called directly and will *
* not handle any custom exception passed to it. *
***********************************************************************************/
/**
* @param string $value
* @param string $message
*/
protected static function validURN(string $value, string $message = ''): void
{
try {
$uri = new Uri($value);
} catch (MalformedUriException $e) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid RFC3986 compliant URI',
$value,
));
}
if (
$uri->getScheme() !== 'urn'
|| (($uri->getScheme() !== null) && $uri->getPath() !== substr($value, strlen($uri->getScheme()) + 1))
) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid RFC8141 compliant URN',
$value,
));
}
}
/**
* @param string $value
* @param string $message
*/
protected static function validURL(string $value, string $message = ''): void
{
try {
$uri = new Uri($value);
} catch (MalformedUriException $e) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid RFC3986 compliant URI',
$value,
));
}
if ($uri->getScheme() !== 'http' && $uri->getScheme() !== 'https') {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid RFC2396 compliant URL',
$value,
));
}
}
/**
* @param string $value
* @param string $message
*/
protected static function validURI(string $value, string $message = ''): void
{
try {
new Uri($value);
} catch (MalformedUriException $e) {
throw new InvalidArgumentException(sprintf(
$message ?: '\'%s\' is not a valid RFC3986 compliant URI',
$value,
));
}
}
}