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<?php |
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namespace Freyo\Flysystem\QcloudCOSv3\Client; |
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class Auth |
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{ |
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const AUTH_URL_FORMAT_ERROR = -1; |
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const AUTH_SECRET_ID_KEY_ERROR = -2; |
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/** |
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* 生成多次有效签名函数（用于上传和下载资源，有效期内可重复对不同资源使用）. |
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* |
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* @param int $expired 过期时间,unix时间戳 |
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* @param string $bucketName 文件所在bucket |
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* |
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* @return string 签名 |
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*/ |
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public static function appSign($expired, $bucketName) |
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{ |
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$appId = Conf::getAppId(); |
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$secretId = Conf::getSecretId(); |
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$secretKey = Conf::getSecretKey(); |
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if (empty($secretId) || empty($secretKey) || empty($appId)) { |
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return self::AUTH_SECRET_ID_KEY_ERROR; |
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} |
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return self::appSignBase($appId, $secretId, $secretKey, $expired, null, $bucketName); |
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} |
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/** |
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* 生成单次有效签名函数（用于删除和更新指定fileId资源，使用一次即失效）. |
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* |
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* @param string $bucketName 文件所在bucket |
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* @param string $path |
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* |
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* @return string 签名 |
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*/ |
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public static function appSign_once($path, $bucketName) |
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{ |
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$appId = Conf::getAppId(); |
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$secretId = Conf::getSecretId(); |
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$secretKey = Conf::getSecretKey(); |
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if (preg_match('/^\//', $path) == 0) { |
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$path = '/'.$path; |
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} |
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$fileId = '/'.$appId.'/'.$bucketName.$path; |
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if (empty($secretId) || empty($secretKey) || empty($appId)) { |
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return self::AUTH_SECRET_ID_KEY_ERROR; |
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} |
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return self::appSignBase($appId, $secretId, $secretKey, 0, $fileId, $bucketName); |
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} |
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/** |
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* 生成绑定资源的多次有效签名. |
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* |
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* @param string $path 文件相对bucket的路径 /test/test.log 标识该bucket下test目录下的test.log文件 |
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* @param string $bucketName bucket |
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* @param int $expired 过期时间，unix时间戳 |
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* |
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* @return string 签名串 |
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*/ |
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public static function appSign_multiple($path, $bucketName, $expired) |
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{ |
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$appId = Conf::getAppId(); |
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$secretId = Conf::getSecretId(); |
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$secretKey = Conf::getSecretKey(); |
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if (preg_match('/^\//', $path) == 0) { |
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$path = '/'.$path; |
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} |
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$fileId = $path; |
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if (empty($secretId) || empty($secretKey) || empty($appId)) { |
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return self::AUTH_SECRET_ID_KEY_ERROR; |
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} |
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return self::appSignBase($appId, $secretId, $secretKey, $expired, $fileId, $bucketName); |
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} |
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/** |
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* 签名函数（上传、下载会生成多次有效签名，删除资源会生成单次有效签名）. |
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* |
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* @param string $appId |
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* @param string $secretId |
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* @param string $secretKey |
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* @param int $expired 过期时间,unix时间戳 |
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* @param string $fileId 文件路径，以 /{$appId}/{$bucketName} 开头 |
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* @param string $bucketName 文件所在bucket |
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* |
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* @return string 签名 |
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*/ |
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private static function appSignBase($appId, $secretId, $secretKey, $expired, $fileId, $bucketName) |
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{ |
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if (empty($secretId) || empty($secretKey)) { |
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return self::AUTH_SECRET_ID_KEY_ERROR; |
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} |
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$now = Cosapi::time(); |
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$rdm = rand(); |
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$plainText = "a=$appId&k=$secretId&e=$expired&t=$now&r=$rdm&f=$fileId&b=$bucketName"; |
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$bin = hash_hmac('SHA1', $plainText, $secretKey, true); |
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$bin = $bin.$plainText; |
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$sign = base64_encode($bin); |
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return $sign; |
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} |
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} |
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//end of script |
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freyo /
flysystem-qcloud-cos-v3
