fix(File): update mime_type in uploader (#430)

Author: leeyeh

src/file.js

@@ -11,6 +11,8 @@ module.exports = function(AV) {
   // 挂载一些配置
   let avConfig = AV._config;
 
+  const hexOctet = () => Math.floor((1 + Math.random()) * 0x10000).toString(16).substring(1);
+
   // port from browserify path module
   // since react-native packager won't shim node modules.
   const extname = (path) => {
@@ -388,7 +390,6 @@ module.exports = function(AV) {
 
       // Create 16-bits uuid as qiniu key.
       const extName = extname(name) || this._extName;
-      const hexOctet = () => Math.floor((1 + Math.random()) * 0x10000).toString(16).substring(1);
       const key = hexOctet() + hexOctet() + hexOctet() + hexOctet() + hexOctet() + extName;
       const data = {
         key,
@@ -397,9 +398,6 @@ module.exports = function(AV) {
         mime_type: type,
         metaData: this.attributes.metaData,
       };
-      if (type && !this.attributes.metaData.mime_type) {
-        this.attributes.metaData.mime_type = type;
-      }
       this._qiniu_key = key;
       return AVRequest(route, null, null, 'POST', data).then(response => {
         if (response.mime_type) {

src/uploader/qiniu.js

@@ -10,8 +10,8 @@ module.exports = function upload(uploadInfo, data, file) {
   const uptoken = uploadInfo.token;
   return new Promise((resolve, reject) => {
     const extra = new qiniu.io.PutExtra();
-    if (file.attributes.metaData.mime_type) {
-      extra.mimeType = file.attributes.metaData.mime_type;
+    if (file.has('mime_type')) {
+      extra.mimeType = file.get('mime_type');
     }
     const body = new Buffer(data, 'base64');
     qiniu.io.put(uptoken, file._qiniu_key, body, extra, (err) => {

src/uploader/s3.js

@@ -8,7 +8,7 @@ module.exports = function upload(uploadInfo, data, file, saveOptions = {}) {
   return new Promise((resolve, reject) => {
     // 海外节点，针对 S3 才会返回 upload_url
     const req = request('PUT', uploadInfo.upload_url)
-      .set('Content-Type', file.attributes.metaData.mime_type)
+      .set('Content-Type', file.get('mime_type'))
       .send(data);
     if (saveOptions.onprogress) {
       req.on('progress', saveOptions.onprogress);