Fix copy (#27)

* fix copy

* fix partsize

Author: lewzylu

src/Qcloud/Cos/Client.php

@@ -119,8 +119,9 @@ public function upload($bucket, $key, $body, $options = array()) {
         return $multipartUpload->performUploading();
     }
     public function copy($bucket, $key, $copysource, $options = array()) {
+
     $options = Collection::fromConfig(array_change_key_case($options), array(
-        'min_part_size' => MultipartUpload::MIN_PART_SIZE,
+        'min_part_size' => Copy::MIN_PART_SIZE,
         'params'        => $options));
         $sourcebucket = explode('-',explode('.',$copysource)[0])[0];
         $sourceappid = explode('-',explode('.',$copysource)[0])[1];
@@ -135,8 +136,9 @@ public function copy($bucket, $key, $copysource, $options = array()) {
     $rt = $cosClient->headObject(array('Bucket'=>$sourcebucket,
                             'Key'=>$sourcekey));
     $contentlength =$rt['ContentLength'];
+
     if ($contentlength < $options['min_part_size']) {
-        return $this->UploadPartCopy(array(
+        return $this->copyObject(array(
                 'Bucket' => $bucket,
                 'Key'    => $key,
                 'CopySource'   => $copysource,

src/Qcloud/Cos/Copy.php

@@ -8,7 +8,7 @@ class Copy {
     /**
      * const var: part size from 5MB to 5GB, and max parts of 10000 are allowed for each upload.
      */
-    const MIN_PART_SIZE = 5242880;
+    const MIN_PART_SIZE = 52428800;
     const MAX_PART_SIZE = 5368709120;
     const MAX_PARTS     = 10000;