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<?php |
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namespace Qiniu; |
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use Qiniu\Config; |
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if (!defined('QINIU_FUNCTIONS_VERSION')) { |
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define('QINIU_FUNCTIONS_VERSION', Config::SDK_VER); |
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/** |
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* 计算文件的crc32检验码: |
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* |
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* @param $file string 待计算校验码的文件路径 |
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* |
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* @return string 文件内容的crc32校验码 |
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*/ |
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function crc32_file($file) |
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{ |
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$hash = hash_file('crc32b', $file); |
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$array = unpack('N', pack('H*', $hash)); |
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return sprintf('%u', $array[1]); |
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} |
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/** |
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* 计算输入流的crc32检验码 |
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* |
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* @param $data 待计算校验码的字符串 |
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* |
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* @return string 输入字符串的crc32校验码 |
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*/ |
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function crc32_data($data) |
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{ |
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$hash = hash('crc32b', $data); |
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$array = unpack('N', pack('H*', $hash)); |
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return sprintf('%u', $array[1]); |
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} |
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/** |
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* 对提供的数据进行urlsafe的base64编码。 |
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* |
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* @param string $data 待编码的数据，一般为字符串 |
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* |
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* @return string 编码后的字符串 |
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* @link http://developer.qiniu.com/docs/v6/api/overview/appendix.html#urlsafe-base64 |
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*/ |
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function base64_urlSafeEncode($data) |
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{ |
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$find = array('+', '/'); |
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$replace = array('-', '_'); |
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return str_replace($find, $replace, base64_encode($data)); |
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} |
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/** |
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* 对提供的urlsafe的base64编码的数据进行解码 |
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* |
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* @param string $str 待解码的数据，一般为字符串 |
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* |
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* @return string 解码后的字符串 |
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*/ |
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function base64_urlSafeDecode($str) |
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{ |
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$find = array('-', '_'); |
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$replace = array('+', '/'); |
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return base64_decode(str_replace($find, $replace, $str)); |
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} |
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/** |
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* Wrapper for JSON decode that implements error detection with helpful |
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* error messages. |
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* |
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* @param string $json JSON data to parse |
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* @param bool $assoc When true, returned objects will be converted |
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* into associative arrays. |
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* @param int $depth User specified recursion depth. |
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* |
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* @return mixed |
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* @throws \InvalidArgumentException if the JSON cannot be parsed. |
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* @link http://www.php.net/manual/en/function.json-decode.php |
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*/ |
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function json_decode($json, $assoc = false, $depth = 512) |
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{ |
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static $jsonErrors = array( |
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JSON_ERROR_DEPTH => 'JSON_ERROR_DEPTH - Maximum stack depth exceeded', |
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JSON_ERROR_STATE_MISMATCH => 'JSON_ERROR_STATE_MISMATCH - Underflow or the modes mismatch', |
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JSON_ERROR_CTRL_CHAR => 'JSON_ERROR_CTRL_CHAR - Unexpected control character found', |
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JSON_ERROR_SYNTAX => 'JSON_ERROR_SYNTAX - Syntax error, malformed JSON', |
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JSON_ERROR_UTF8 => 'JSON_ERROR_UTF8 - Malformed UTF-8 characters, possibly incorrectly encoded' |
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); |
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if (empty($json)) { |
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return null; |
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} |
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$data = \json_decode($json, $assoc, $depth); |
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if (JSON_ERROR_NONE !== json_last_error()) { |
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$last = json_last_error(); |
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throw new \InvalidArgumentException( |
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'Unable to parse JSON data: ' |
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. (isset($jsonErrors[$last]) |
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? $jsonErrors[$last] |
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: 'Unknown error') |
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); |
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} |
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return $data; |
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} |
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/** |
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* 计算七牛API中的数据格式 |
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* |
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* @param $bucket 待操作的空间名 |
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* @param $key 待操作的文件名 |
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* |
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* @return string 符合七牛API规格的数据格式 |
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* @link http://developer.qiniu.com/docs/v6/api/reference/data-formats.html |
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*/ |
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function entry($bucket, $key) |
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{ |
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$en = $bucket; |
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if (!empty($key)) { |
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$en = $bucket . ':' . $key; |
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} |
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return base64_urlSafeEncode($en); |
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} |
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/** |
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* array 辅助方法，无值时不set |
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* |
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* @param $array 待操作array |
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* @param $key key |
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* @param $value value 为null时 不设置 |
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* |
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* @return array 原来的array，便于连续操作 |
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*/ |
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function setWithoutEmpty(&$array, $key, $value) |
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{ |
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12 |
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if (!empty($value)) { |
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3 |
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$array[$key] = $value; |
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3 |
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} |
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return $array; |
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} |
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} |
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qiniu /
php-sdk
