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Use composer as application autoloader

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This commit is contained in:
Romain Neutron
2013-01-18 17:47:25 +01:00
parent 358cdddcc6
commit 2069d40544
784 changed files with 1031 additions and 1806 deletions
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152
lib/classes/uuid.php Normal file
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<?php
/*
* @author Andrew Moore
*
* Originally found at: http://www.php.net/manual/en/function.uniqid.php#94959
*/
class uuid
{
/**
* @desc UUID named based version that use MD5(hash)
* @param string $namespace
* @param string $name
* @return string
*/
public static function generate_v3($namespace, $name)
{
if ( ! self::is_valid($namespace)) {
return false;
}
// Get hexadecimal components of namespace
$nhex = str_replace(array('-', '{', '}'), '', $namespace);
// Binary Value
$nstr = '';
// Convert Namespace UUID to bits
for ($i = 0; $i < strlen($nhex); $i+=2) {
$nstr .= chr(hexdec($nhex[$i] . $nhex[$i + 1]));
}
// Calculate hash value
$hash = md5($nstr . $name);
return sprintf('%08s-%04s-%04x-%04x-%12s',
// 32 bits for "time_low"
substr($hash, 0, 8),
// 16 bits for "time_mid"
substr($hash, 8, 4),
// 16 bits for "time_hi_and_version",
// four most significant bits holds version number 3
(hexdec(substr($hash, 12, 4)) & 0x0fff) | 0x3000,
// 16 bits, 8 bits for "clk_seq_hi_res",
// 8 bits for "clk_seq_low",
// two most significant bits holds zero and one for variant DCE1.1
(hexdec(substr($hash, 16, 4)) & 0x3fff) | 0x8000,
// 48 bits for "node"
substr($hash, 20, 12)
);
}
/**
* @desc UUID randomly generated version
* @return string
*/
public static function generate_v4()
{
return sprintf('%04x%04x-%04x-%04x-%04x-%04x%04x%04x',
// 32 bits for "time_low"
mt_rand(0, 0xffff), mt_rand(0, 0xffff),
// 16 bits for "time_mid"
mt_rand(0, 0xffff),
// 16 bits for "time_hi_and_version",
// four most significant bits holds version number 4
mt_rand(0, 0x0fff) | 0x4000,
// 16 bits, 8 bits for "clk_seq_hi_res",
// 8 bits for "clk_seq_low",
// two most significant bits holds zero and one for variant DCE1.1
mt_rand(0, 0x3fff) | 0x8000,
// 48 bits for "node"
mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff)
);
}
/**
* @desc UUID named version that use SHA-1 hashing
* @param string $namespace
* @param string $name
* @return string
*/
public static function generate_v5($namespace, $name)
{
if ( ! self::is_valid($namespace)) {
return false;
}
// Get hexadecimal components of namespace
$nhex = str_replace(array('-', '{', '}'), '', $namespace);
// Binary Value
$nstr = '';
// Convert Namespace UUID to bits
for ($i = 0; $i < strlen($nhex); $i+=2) {
$nstr .= chr(hexdec($nhex[$i] . $nhex[$i + 1]));
}
// Calculate hash value
$hash = sha1($nstr . $name);
return sprintf('%08s-%04s-%04x-%04x-%12s',
// 32 bits for "time_low"
substr($hash, 0, 8),
// 16 bits for "time_mid"
substr($hash, 8, 4),
// 16 bits for "time_hi_and_version",
// four most significant bits holds version number 5
(hexdec(substr($hash, 12, 4)) & 0x0fff) | 0x5000,
// 16 bits, 8 bits for "clk_seq_hi_res",
// 8 bits for "clk_seq_low",
// two most significant bits holds zero and one for variant DCE1.1
(hexdec(substr($hash, 16, 4)) & 0x3fff) | 0x8000,
// 48 bits for "node"
substr($hash, 20, 12)
);
}
/**
* @desc check if an uuid is a valid one
* @param string $uuid
* @return boolean
*/
public static function is_valid($uuid)
{
return preg_match('/^\{?[0-9a-f]{8}\-?[0-9a-f]{4}\-?[0-9a-f]{4}\-?' .
'[0-9a-f]{4}\-?[0-9a-f]{12}\}?$/i', $uuid) === 1;
}
/**
* @desc Compare two UUID's "lexically"
* @param stiring $uuid1
* @param string $uuid2
* @return int
* -1 uuid1<uuid2 0 uuid1==uuid2 +1 uuid1>uuid2
*/
public static function compare($uuid1, $uuid2)
{
return (strcmp($uuid1, $uuid2) === 0);
}
/**
* @desc Check wheter an UUID is the NULL UUID 00000000-0000-0000-0000-000000000000
* @return string
*/
public static function is_null($uuid)
{
return (0 === strcmp($uuid, '00000000-0000-0000-0000-000000000000'));
}
}