Merge pull request #13 from avoscloud/0.4.1

Removed decodeBase64

Author: killme2008

lib/av.js

@@ -3824,46 +3824,6 @@
     return chunks.join("");
   };
 
-  //https://raw.githubusercontent.com/kvz/phpjs/master/functions/url/base64_decode.js
-  var decodeBase64 = function(data) {
-    var b64 = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
-    var o1, o2, o3, h1, h2, h3, h4, bits, i = 0,
-        ac = 0,
-        dec = '',
-        tmp_arr = [];
-
-    if (!data) {
-        return data;
-    }
-
-    data += '';
-
-    do {
-        // unpack four hexets into three octets using index points in b64
-        h1 = b64.indexOf(data.charAt(i++));
-        h2 = b64.indexOf(data.charAt(i++));
-        h3 = b64.indexOf(data.charAt(i++));
-        h4 = b64.indexOf(data.charAt(i++));
-
-        bits = h1 << 18 | h2 << 12 | h3 << 6 | h4;
-
-        o1 = bits >> 16 & 0xff;
-        o2 = bits >> 8 & 0xff;
-        o3 = bits & 0xff;
-
-        if (h3 == 64) {
-            tmp_arr[ac++] = String.fromCharCode(o1);
-        } else if (h4 == 64) {
-            tmp_arr[ac++] = String.fromCharCode(o1, o2);
-        } else {
-            tmp_arr[ac++] = String.fromCharCode(o1, o2, o3);
-        }
-    } while (i < data.length);
-
-    dec = tmp_arr.join('');
-
-    return decodeURIComponent(escape(dec.replace(/\0+$/, '')));
-  };
   // A list of file extensions to mime types as found here:
   // http://stackoverflow.com/questions/58510/using-net-how-can-you-find-the-
   //     mime-type-of-a-file-based-on-the-file-signature
@@ -4147,7 +4107,6 @@
       this._metaData.size = data.length;
     } else if (data && data.base64) {
       this._source = AV.Promise.as(data.base64, guessedType);
-      this._metaData.size = decodeBase64(data.base64).length;
     } else if (typeof(File) !== "undefined" && data instanceof File) {
       this._source = readAsync(data, type);
     } else if(AV._isNode && Buffer.isBuffer(data)) {
@@ -4309,9 +4268,6 @@
               self._metaData.mime_type = type;
               self._qiniu_key = key;
               self._base64 = base64;
-              if(!self._metaData.size){
-                self._metaData.size = decodeBase64(base64).length;
-              }
               return AV._request("qiniu", null, null, 'POST', data);
             }).then(function(response) {
               self._url = response.url;
@@ -4346,9 +4302,6 @@
                 mime_type: type,
                 metaData: self._metaData,
               };
-              if(!self._metaData.size){
-                self._metaData.size = decodeBase64(base64).length;
-              }
               return AV._request("files", self._name, null, 'POST', data);
             }).then(function(response) {
               self._name = response.name;