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- <?php
- namespace Qiniu;
- use Qiniu\Config;
- if (!defined('QINIU_FUNCTIONS_VERSION')) {
- define('QINIU_FUNCTIONS_VERSION', Config::SDK_VER);
- /**
- * 计算文件的crc32检验码:
- *
- * @param $file string 待计算校验码的文件路径
- *
- * @return string 文件内容的crc32校验码
- */
- function crc32_file($file)
- {
- $hash = hash_file('crc32b', $file);
- $array = unpack('N', pack('H*', $hash));
- return sprintf('%u', $array[1]);
- }
- /**
- * 计算输入流的crc32检验码
- *
- * @param $data 待计算校验码的字符串
- *
- * @return string 输入字符串的crc32校验码
- */
- function crc32_data($data)
- {
- $hash = hash('crc32b', $data);
- $array = unpack('N', pack('H*', $hash));
- return sprintf('%u', $array[1]);
- }
- /**
- * 对提供的数据进行urlsafe的base64编码。
- *
- * @param string $data 待编码的数据,一般为字符串
- *
- * @return string 编码后的字符串
- * @link http://developer.qiniu.com/docs/v6/api/overview/appendix.html#urlsafe-base64
- */
- function base64_urlSafeEncode($data)
- {
- $find = array('+', '/');
- $replace = array('-', '_');
- return str_replace($find, $replace, base64_encode($data));
- }
- /**
- * 对提供的urlsafe的base64编码的数据进行解码
- *
- * @param string $str 待解码的数据,一般为字符串
- *
- * @return string 解码后的字符串
- */
- function base64_urlSafeDecode($str)
- {
- $find = array('-', '_');
- $replace = array('+', '/');
- return base64_decode(str_replace($find, $replace, $str));
- }
- /**
- * Wrapper for JSON decode that implements error detection with helpful
- * error messages.
- *
- * @param string $json JSON data to parse
- * @param bool $assoc When true, returned objects will be converted
- * into associative arrays.
- * @param int $depth User specified recursion depth.
- *
- * @return mixed
- * @throws \InvalidArgumentException if the JSON cannot be parsed.
- * @link http://www.php.net/manual/en/function.json-decode.php
- */
- function json_decode($json, $assoc = false, $depth = 512)
- {
- static $jsonErrors = array(
- JSON_ERROR_DEPTH => 'JSON_ERROR_DEPTH - Maximum stack depth exceeded',
- JSON_ERROR_STATE_MISMATCH => 'JSON_ERROR_STATE_MISMATCH - Underflow or the modes mismatch',
- JSON_ERROR_CTRL_CHAR => 'JSON_ERROR_CTRL_CHAR - Unexpected control character found',
- JSON_ERROR_SYNTAX => 'JSON_ERROR_SYNTAX - Syntax error, malformed JSON',
- JSON_ERROR_UTF8 => 'JSON_ERROR_UTF8 - Malformed UTF-8 characters, possibly incorrectly encoded'
- );
- if (empty($json)) {
- return null;
- }
- $data = \json_decode($json, $assoc, $depth);
- if (JSON_ERROR_NONE !== json_last_error()) {
- $last = json_last_error();
- throw new \InvalidArgumentException(
- 'Unable to parse JSON data: '
- . (isset($jsonErrors[$last])
- ? $jsonErrors[$last]
- : 'Unknown error')
- );
- }
- return $data;
- }
- /**
- * 计算七牛API中的数据格式
- *
- * @param $bucket 待操作的空间名
- * @param $key 待操作的文件名
- *
- * @return string 符合七牛API规格的数据格式
- * @link http://developer.qiniu.com/docs/v6/api/reference/data-formats.html
- */
- function entry($bucket, $key)
- {
- $en = $bucket;
- if (!empty($key)) {
- $en = $bucket . ':' . $key;
- }
- return base64_urlSafeEncode($en);
- }
- /**
- * array 辅助方法,无值时不set
- *
- * @param $array 待操作array
- * @param $key key
- * @param $value value 为null时 不设置
- *
- * @return array 原来的array,便于连续操作
- */
- function setWithoutEmpty(&$array, $key, $value)
- {
- if (!empty($value)) {
- $array[$key] = $value;
- }
- return $array;
- }
- /**
- * 缩略图链接拼接
- *
- * @param string $url 图片链接
- * @param int $mode 缩略模式
- * @param int $width 宽度
- * @param int $height 长度
- * @param string $format 输出类型
- * @param int $quality 图片质量
- * @param int $interlace 是否支持渐进显示
- * @param int $ignoreError 忽略结果
- * @return string
- * @link http://developer.qiniu.com/code/v6/api/kodo-api/image/imageview2.html
- * @author Sherlock Ren <sherlock_ren@icloud.com>
- */
- function thumbnail(
- $url,
- $mode,
- $width,
- $height,
- $format = null,
- $quality = null,
- $interlace = null,
- $ignoreError = 1
- ) {
- static $imageUrlBuilder = null;
- if (is_null($imageUrlBuilder)) {
- $imageUrlBuilder = new \Qiniu\Processing\ImageUrlBuilder;
- }
- return call_user_func_array(array($imageUrlBuilder, 'thumbnail'), func_get_args());
- }
- /**
- * 图片水印
- *
- * @param string $url 图片链接
- * @param string $image 水印图片链接
- * @param numeric $dissolve 透明度
- * @param string $gravity 水印位置
- * @param numeric $dx 横轴边距
- * @param numeric $dy 纵轴边距
- * @param numeric $watermarkScale 自适应原图的短边比例
- * @link http://developer.qiniu.com/code/v6/api/kodo-api/image/watermark.html
- * @return string
- * @author Sherlock Ren <sherlock_ren@icloud.com>
- */
- function waterImg(
- $url,
- $image,
- $dissolve = 100,
- $gravity = 'SouthEast',
- $dx = null,
- $dy = null,
- $watermarkScale = null
- ) {
- static $imageUrlBuilder = null;
- if (is_null($imageUrlBuilder)) {
- $imageUrlBuilder = new \Qiniu\Processing\ImageUrlBuilder;
- }
- return call_user_func_array(array($imageUrlBuilder, 'waterImg'), func_get_args());
- }
- /**
- * 文字水印
- *
- * @param string $url 图片链接
- * @param string $text 文字
- * @param string $font 文字字体
- * @param string $fontSize 文字字号
- * @param string $fontColor 文字颜色
- * @param numeric $dissolve 透明度
- * @param string $gravity 水印位置
- * @param numeric $dx 横轴边距
- * @param numeric $dy 纵轴边距
- * @link http://developer.qiniu.com/code/v6/api/kodo-api/image/watermark.html#text-watermark
- * @return string
- * @author Sherlock Ren <sherlock_ren@icloud.com>
- */
- function waterText(
- $url,
- $text,
- $font = '黑体',
- $fontSize = 0,
- $fontColor = null,
- $dissolve = 100,
- $gravity = 'SouthEast',
- $dx = null,
- $dy = null
- ) {
- static $imageUrlBuilder = null;
- if (is_null($imageUrlBuilder)) {
- $imageUrlBuilder = new \Qiniu\Processing\ImageUrlBuilder;
- }
- return call_user_func_array(array($imageUrlBuilder, 'waterText'), func_get_args());
- }
- /**
- * 从uptoken解析accessKey和bucket
- *
- * @param $upToken
- * @return array(ak,bucket,err=null)
- */
- function explodeUpToken($upToken)
- {
- $items = explode(':', $upToken);
- if (count($items) != 3) {
- return array(null, null, "invalid uptoken");
- }
- $accessKey = $items[0];
- $putPolicy = json_decode(base64_urlSafeDecode($items[2]));
- $scope = $putPolicy->scope;
- $scopeItems = explode(':', $scope);
- $bucket = $scopeItems[0];
- return array($accessKey, $bucket, null);
- }
- }
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