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<?php |
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/* |
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* This file is part of the slince/smartqq package. |
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* |
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* (c) Slince <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Slince\SmartQQ; |
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use Symfony\Component\Filesystem\Filesystem; |
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class Utils |
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{ |
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/** |
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* @var Filesystem |
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*/ |
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protected static $filesystem; |
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/** |
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* Get filesystem. |
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* |
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* @return Filesystem |
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*/ |
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public static function getFilesystem() |
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{ |
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if (is_null(static::$filesystem)) { |
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static::$filesystem = new Filesystem(); |
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} |
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return static::$filesystem; |
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} |
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/** |
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* hash. |
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* |
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* @param int $uin |
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* @param string $ptWebQQ |
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* |
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* @return string |
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*/ |
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public static function hash($uin, $ptWebQQ) |
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{ |
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$x = array( |
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0, $uin >> 24 & 0xff ^ 0x45, |
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0, $uin >> 16 & 0xff ^ 0x43, |
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0, $uin >> 8 & 0xff ^ 0x4f, |
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0, $uin & 0xff ^ 0x4b, |
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); |
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for ($i = 0; $i < 64; ++$i) { |
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$x[($i & 3) << 1] ^= ord(substr($ptWebQQ, $i, 1)); |
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} |
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$hex = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'); |
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$hash = ''; |
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for ($i = 0; $i < 8; ++$i) { |
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$hash .= $hex[$x[$i] >> 4 & 0xf].$hex[$x[$i] & 0xf]; |
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} |
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return $hash; |
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} |
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/** |
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* 生成ptqrtoken的哈希函数. |
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* |
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* @param string $string |
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* |
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* @return int |
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*/ |
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public static function hash33($string) |
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{ |
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$e = 0; |
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$n = strlen($string); |
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for ($i = 0; $n > $i; ++$i) { |
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//64位php才进行32位转换 |
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if (PHP_INT_MAX > 2147483647) { |
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$e = static::toUint32val($e); |
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} |
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$e += ($e << 5) + static::charCodeAt($string, $i); |
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} |
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return 2147483647 & $e; |
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} |
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/** |
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* 入转换为32位无符号整数，若溢出，则只保留低32位. |
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* |
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* @see http://outofmemory.cn/code-snippet/18291/out-switch-32-place-sign-integer-spill-maintain-32-place |
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* |
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* @param mixed $var |
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* |
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* @return float|int|string |
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*/ |
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public static function toUint32val($var) |
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{ |
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if (is_string($var)) { |
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if (PHP_INT_MAX > 2147483647) { |
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$var = intval($var); |
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} else { |
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$var = floatval($var); |
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} |
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} |
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if (!is_int($var)) { |
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$var = intval($var); |
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} |
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if ((0 > $var) || ($var > 4294967295)) { |
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$var &= 4294967295; |
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if (0 > $var) { |
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$var = sprintf('%u', $var); |
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} |
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} |
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return $var; |
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} |
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/** |
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* 计算字符的unicode，类似js中charCodeAt |
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* [Link](http://www.phpjiayuan.com/90/225.html). |
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* |
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* @param string $str |
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* @param int $index |
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* |
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* @return null|number |
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*/ |
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public static function charCodeAt($str, $index) |
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{ |
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$char = mb_substr($str, $index, 1, 'UTF-8'); |
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if (mb_check_encoding($char, 'UTF-8')) { |
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$ret = mb_convert_encoding($char, 'UTF-32BE', 'UTF-8'); |
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return hexdec(bin2hex($ret)); |
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} else { |
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return null; |
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} |
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} |
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/** |
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* 获取当前时间的毫秒数. |
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* |
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* @return float |
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*/ |
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public static function getMillisecond() |
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{ |
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list($s1, $s2) = explode(' ', microtime()); |
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return (float) sprintf('%.0f', (floatval($s1) + floatval($s2)) * 1000); |
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} |
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/** |
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* 用于发送消息时生成msg id. |
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* |
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* @return int |
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*/ |
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public static function makeMsgId() |
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{ |
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static $sequence = 0; |
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static $t = 0; |
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if (!$t) { |
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$t = static::getMillisecond(); |
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$t = ($t - $t % 1000) / 1000; |
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$t = $t % 10000 * 10000; |
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} |
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//获取msgId |
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++$sequence; |
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return $t + $sequence; |
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} |
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} |
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slince /
smartqq
