diff --git a/Makefile b/Makefile
index b0350f15..3358325c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,5 @@
 install : all
 
 all :
+	grunt
 	node demo/server.js
diff --git a/README.md b/README.md
index 2bd88d6a..13928cc9 100644
--- a/README.md
+++ b/README.md
@@ -59,7 +59,9 @@ qiniu-js-sdk
     var uploader = Qiniu.uploader({
         runtimes: 'html5,flash,html4',    //上传模式,依次退化
         browse_button: 'pickfiles',       //上传选择的点选按钮，**必需**
-        uptoken_url: '/token',            //Ajax请求upToken的Url，**强烈建议设置**（服务端提供）
+        uptoken_url: '/uptoken',            //Ajax请求upToken的Url，**强烈建议设置**（服务端提供）
+        // downtoken_url: '/downtoken',
+        // Ajax请求downToken的Url，私有空间时使用,JS-SDK将向该地址POST文件的key和domain,服务端返回的JSON必须包含`url`字段，`url`值为该文件的下载地址
         // uptoken : '<Your upload token>', //若未指定uptoken_url,则必须指定 uptoken ,uptoken由其他程序生成
         // unique_names: true, // 默认 false，key为文件名。若开启该选项，SDK会为每个文件自动生成key（文件名）
         // save_key: true,   // 默认 false。若在服务端生成uptoken的上传策略中指定了 `sava_key`，则开启，SDK在前端将不对key进行任何处理
@@ -301,6 +303,8 @@ qiniu-js-sdk
 
 *  安装 [Nodejs](http://nodejs.org/download/)、[npm](https://www.npmjs.org/)
 
+*  `npm install -g grunt-cli`，安装 Grunt
+
 *  `npm install`，安装七牛 Node.js SDK、Express
 
 *  获取源代码：
@@ -316,12 +320,15 @@ qiniu-js-sdk
                 'ACCESS_KEY': '<Your Access Key>',
                 'SECRET_KEY': '<Your Secret Key>',
                 'Bucket_Name': '<Your Bucket Name>',
-                'Port': 18080
+                'Port': 18080,
+                'Uptoken_Url': '<Your Uptoken_Url>',
+                'Domain': '<Your Bucket Domain>'
             }
 
         ```
 
-*  在`demo`目录运行`node server.js` 或者 在根目录运行`make`启动
+*  在根目录运行`make`启动
+
 *  访问`http://127.0.0.1:18080/`或`http://localhost:18080/`
 
 ## 说明
diff --git a/demo/config.js b/demo/config.js
index d5baae05..3ce09cab 100644
--- a/demo/config.js
+++ b/demo/config.js
@@ -3,6 +3,6 @@ module.exports = {
     'SECRET_KEY': '<Your Secret Key>',
     'Bucket_Name': '<Your Bucket Name>',
     'Port': 18080,
-    'Uptoken_Url': '/token',
+    'Uptoken_Url': '/uptoken',
     'Domain': 'http://qiniu-plupload.qiniudn.com/'
-}
+};
diff --git a/demo/js/main.js b/demo/js/main.js
index 4f4eb6ea..67289d40 100644
--- a/demo/js/main.js
+++ b/demo/js/main.js
@@ -3,6 +3,7 @@
 /*global FileProgress */
 /*global hljs */
 
+
 $(function() {
     var uploader = Qiniu.uploader({
         runtimes: 'html5,flash,html4',
@@ -15,6 +16,7 @@ $(function() {
         chunk_size: '4mb',
         uptoken_url: $('#uptoken_url').val(),
         domain: $('#domain').val(),
+        // downtoken_url: '/downtoken',
         // unique_names: true,
         // save_key: true,
         // x_vars: {
diff --git a/demo/js/ui.js b/demo/js/ui.js
index dbc91990..e289dddf 100644
--- a/demo/js/ui.js
+++ b/demo/js/ui.js
@@ -190,11 +190,18 @@ FileProgress.prototype.setComplete = function(up, info) {
     var td = this.fileProgressWrapper.find('td:eq(2) .progress');
 
     var res = $.parseJSON(info);
-    var domain = up.getOption('domain');
-    var url = domain + encodeURI(res.key);
-    var link = domain + res.key;
-    var str = "<div><strong>Link:</strong><a href=" + url + " target='_blank' > " + link + "</a></div>" +
-        "<div class=hash><strong>Hash:</strong>" + res.hash + "</div>";
+    var url;
+    if (res.url) {
+        url = res.url;
+        str = "<div><strong>Link:</strong><a href=" + res.url + " target='_blank' > " + res.url + "</a></div>" +
+            "<div class=hash><strong>Hash:</strong>" + res.hash + "</div>";
+    } else {
+        var domain = up.getOption('domain');
+        url = domain + encodeURI(res.key);
+        var link = domain + res.key;
+        str = "<div><strong>Link:</strong><a href=" + url + " target='_blank' > " + link + "</a></div>" +
+            "<div class=hash><strong>Hash:</strong>" + res.hash + "</div>";
+    }
 
     td.html(str).removeClass().next().next('.status').hide();
 
@@ -240,12 +247,14 @@ FileProgress.prototype.setComplete = function(up, info) {
         Wrapper.append(imgWrapper);
 
         var img = new Image();
-        $(img).attr('src', url + imageView);
+        if (!/imageView/.test(url)) {
+            url += imageView
+        }
+        $(img).attr('src', url);
 
         var height_space = 340;
         $(img).on('load', function() {
-
-            showImg.attr('src', url + imageView);
+            showImg.attr('src', url);
 
             linkWrapper.attr('href', url).attr('title', '查看原图');
 
diff --git a/demo/server.js b/demo/server.js
index 8e953f38..49a899b9 100644
--- a/demo/server.js
+++ b/demo/server.js
@@ -7,16 +7,13 @@ app.configure(function() {
     app.use(express.static(__dirname + '/'));
 });
 
+
 app.set('views', __dirname + '/views');
 app.engine('html', require('ejs').renderFile);
 
+app.use(express.urlencoded());
 
-app.use(function(req, res, next) {
-    req.headers['if-none-match'] = 'no-match-for-this';
-    next();
-});
-
-app.get('/token', function(req, res, next) {
+app.get('/uptoken', function(req, res, next) {
     var token = uptoken.token();
     res.header("Cache-Control", "max-age=0, private, must-revalidate");
     res.header("Pragma", "no-cache");
@@ -28,6 +25,40 @@ app.get('/token', function(req, res, next) {
     }
 });
 
+app.post('/downtoken', function(req, res) {
+
+    var key = req.body.key,
+        domain = req.body.domain;
+
+    //trim 'http://'
+    if (domain.indexOf('http://') != -1) {
+        domain = domain.substr(7);
+    }
+    //trim 'https://'
+    if (domain.indexOf('https://') != -1) {
+        domain = domain.substr(8);
+    }
+    //trim '/' if the domain's last char is '/'
+    if (domain.lastIndexOf('/') === domain.length - 1) {
+        domain = domain.substr(0, domain.length - 1);
+    }
+
+    var baseUrl = qiniu.rs.makeBaseUrl(domain, key);
+    var deadline = 3600 + Math.floor(Date.now() / 1000);
+
+    baseUrl += '?e=' + deadline;
+    var signature = qiniu.util.hmacSha1(baseUrl, config.SECRET_KEY);
+    var encodedSign = qiniu.util.base64ToUrlSafe(signature);
+    var downloadToken = config.ACCESS_KEY + ':' + encodedSign;
+
+    if (downloadToken) {
+        res.json({
+            downtoken: downloadToken,
+            url: baseUrl + '&token=' + downloadToken
+        })
+    }
+});
+
 app.get('/', function(req, res) {
     res.render('index.html', {
         domain: config.Domain,
@@ -41,4 +72,6 @@ qiniu.conf.SECRET_KEY = config.SECRET_KEY;
 var uptoken = new qiniu.rs.PutPolicy(config.Bucket_Name);
 
 
-app.listen(config.Port);
+app.listen(config.Port, function() {
+    console.log('Listening on port %d', config.Port);
+});
diff --git a/demo/views/index.html b/demo/views/index.html
index 5d534128..5c7f6ad6 100644
--- a/demo/views/index.html
+++ b/demo/views/index.html
@@ -20,7 +20,7 @@ <h1 class="text-left col-md-12 ">
             <a class="btn btn-default view_code" id="show_code">
                 查看初始化代码
             </a>
-            <a class="btn btn-default view_github" href="https://github.com/sunln/qiniu-js-sdk" target="_blank">
+            <a class="btn btn-default view_github" href="https://github.com/qiniupd/qiniu-js-sdk" target="_blank">
 				<img src="http://qtestbucket.qiniudn.com/GitHub-Mark-32px.png">
 				View Source on Github
 			</a>
diff --git a/src/qiniu.js b/src/qiniu.js
index 0051c191..d79ac217 100644
--- a/src/qiniu.js
+++ b/src/qiniu.js
@@ -451,7 +451,7 @@ function QiniuJsSDK() {
                                         errorObj = that.parseJSON(errorObj.error);
                                         errorText = errorObj.error || 'file exists';
                                     } catch (e) {
-                                        // console.log(e);
+                                        throw ('invalid json format');
                                     }
                                     break;
                                 case 631:
@@ -493,6 +493,42 @@ function QiniuJsSDK() {
 
         uploader.bind('FileUploaded', (function(_FileUploaded_Handler) {
             return function(up, file, info) {
+
+                var last_step = function(up, file, info) {
+                    if (op.downtoken_url) {
+                        var ajax_downtoken = that.createAjax();
+                        ajax_downtoken.open('POST', op.downtoken_url, true);
+                        ajax_downtoken.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
+                        ajax_downtoken.onreadystatechange = function() {
+                            if (ajax_downtoken.readyState === 4) {
+                                if (ajax_downtoken.status === 200) {
+                                    var res_downtoken;
+                                    try {
+                                        res_downtoken = that.parseJSON(ajax_downtoken.responseText);
+                                    } catch (e) {
+                                        throw ('invalid json format');
+                                    }
+                                    var info_extended = {};
+                                    plupload.extend(info_extended, that.parseJSON(info), res_downtoken);
+                                    if (_FileUploaded_Handler) {
+                                        _FileUploaded_Handler(up, file, JSON.stringify(info_extended));
+                                    }
+                                } else {
+                                    uploader.trigger('Error', {
+                                        status: ajax_downtoken.status,
+                                        response: ajax_downtoken.responseText,
+                                        file: file,
+                                        code: plupload.HTTP_ERROR
+                                    });
+                                }
+                            }
+                        };
+                        ajax_downtoken.send('key=' + that.parseJSON(info).key + '&domain=' + op.domain);
+                    } else if (_FileUploaded_Handler) {
+                        _FileUploaded_Handler(up, file, info);
+                    }
+                };
+
                 var res = that.parseJSON(info.response);
                 ctx = ctx ? ctx : res.ctx;
                 if (ctx) {
@@ -523,15 +559,11 @@ function QiniuJsSDK() {
                     ajax.open('POST', url, true);
                     ajax.setRequestHeader('Content-Type', 'text/plain;charset=UTF-8');
                     ajax.setRequestHeader('Authorization', 'UpToken ' + that.token);
-                    ajax.send(ctx);
                     ajax.onreadystatechange = function() {
                         if (ajax.readyState === 4) {
                             if (ajax.status === 200) {
                                 var info = ajax.responseText;
-
-                                if (_FileUploaded_Handler) {
-                                    _FileUploaded_Handler(up, file, info);
-                                }
+                                last_step(up, file, info);
 
                             } else {
                                 uploader.trigger('Error', {
@@ -543,10 +575,9 @@ function QiniuJsSDK() {
                             }
                         }
                     };
+                    ajax.send(ctx);
                 } else {
-                    if (_FileUploaded_Handler) {
-                        _FileUploaded_Handler(up, file, info.response);
-                    }
+                    last_step(up, file, info.response);
                 }
 
             };
diff --git a/src/qiniu.min.js b/src/qiniu.min.js
index e1fd539a..5e66dfab 100644
--- a/src/qiniu.min.js
+++ b/src/qiniu.min.js
@@ -1 +1 @@
-function QiniuJsSDK(){this.detectIEVersion=function(){for(var a=4,b=document.createElement("div"),c=b.getElementsByTagName("i");b.innerHTML="<!--[if gt IE "+a+"]><i></i><![endif]-->",c[0];)a++;return a>4?a:!1},this.isImage=function(a){var b,c="",d=["png","jpg","jpeg","gif","bmp"],e=/\.([a-zA-Z0-9]+)(\?|\@|$)/;if(!a||!e.test(a))return!1;b=e.exec(a),c=b[1].toLowerCase();for(var f=0,g=d.length;g>f;f++)if(c===d[f])return!0;return!1},this.getFileExtension=function(a){var b,c=a.split(".");return b=1===c.length||""===c[0]&&2===c.length?"":c.pop().toLowerCase()},this.utf8_encode=function(a){if(null===a||"undefined"==typeof a)return"";var b,c,d=a+"",e="",f=0;b=c=0,f=d.length;for(var g=0;f>g;g++){var h=d.charCodeAt(g),i=null;if(128>h)c++;else if(h>127&&2048>h)i=String.fromCharCode(h>>6|192,63&h|128);else if(63488&h^!0)i=String.fromCharCode(h>>12|224,h>>6&63|128,63&h|128);else{if(64512&h^!0)throw new RangeError("Unmatched trail surrogate at "+g);var j=d.charCodeAt(++g);if(64512&j^!0)throw new RangeError("Unmatched lead surrogate at "+(g-1));h=((1023&h)<<10)+(1023&j)+65536,i=String.fromCharCode(h>>18|240,h>>12&63|128,h>>6&63|128,63&h|128)}null!==i&&(c>b&&(e+=d.slice(b,c)),e+=i,b=c=g+1)}return c>b&&(e+=d.slice(b,f)),e},this.base64_encode=function(a){var b,c,d,e,f,g,h,i,j="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",k=0,l=0,m="",n=[];if(!a)return a;a=this.utf8_encode(a+"");do b=a.charCodeAt(k++),c=a.charCodeAt(k++),d=a.charCodeAt(k++),i=b<<16|c<<8|d,e=i>>18&63,f=i>>12&63,g=i>>6&63,h=63&i,n[l++]=j.charAt(e)+j.charAt(f)+j.charAt(g)+j.charAt(h);while(k<a.length);switch(m=n.join(""),a.length%3){case 1:m=m.slice(0,-2)+"==";break;case 2:m=m.slice(0,-1)+"="}return m},this.URLSafeBase64Encode=function(a){return a=this.base64_encode(a),a.replace(/\//g,"_").replace(/\+/g,"-")},this.createAjax=function(){var a={};return a=window.XMLHttpRequest?new XMLHttpRequest:new ActiveXObject("Microsoft.XMLHTTP")},this.parseJSON=function(a){return window.JSON&&window.JSON.parse?window.JSON.parse(a):null===a?a:"string"==typeof a&&(a=this.trim(a),a&&/^[\],:{}\s]*$/.test(a.replace(/\\(?:["\\\/bfnrt]|u[\da-fA-F]{4})/g,"@").replace(/"[^"\\\r\n]*"|true|false|null|-?(?:\d+\.|)\d+(?:[eE][+-]?\d+|)/g,"]").replace(/(?:^|:|,)(?:\s*\[)+/g,"")))?function(){return a}():void 0},this.trim=function(a){return null===a?"":this.trim.call(a)};var a=this;this.uploader=function(b){if(!b.domain)throw"uptoken_url or domain is required!";if(!b.browse_button)throw"browse_button is required!";var c={},d=b.init&&b.init.Error,e=b.init&&b.init.FileUploaded;b.init.Error=function(){},b.init.FileUploaded=function(){},a.uptoken_url=b.uptoken_url,a.token="",a.key_handler="function"==typeof b.init.Key?b.init.Key:"",this.domain=b.domain;var f="",g=function(){var c,d,e,f=a.detectIEVersion();f&&9>=f&&b.chunk_size&&b.runtimes.indexOf("flash")>=0?b.chunk_size=0:(c=20,d=4<<c,e=plupload.parseSize(b.chunk_size),e>d&&(b.chunk_size=d))};g();var h=function(){if(b.uptoken)a.token=b.uptoken;else{var c=a.createAjax();c.open("GET",a.uptoken_url,!0),c.setRequestHeader("If-Modified-Since","0"),c.onreadystatechange=function(){if(4===c.readyState&&200===c.status){var b=a.parseJSON(c.responseText);a.token=b.uptoken}},c.send()}},i=function(c,d,e){var f="",g=!1;if(!b.save_key)if(g=c.getOption&&c.getOption("unique_names"),g=g||c.settings&&c.settings.unique_names){var h=a.getFileExtension(d.name);f=h?d.id+"."+h:d.id}else f="function"==typeof e?e(c,d):d.name;return f};plupload.extend(c,b,{url:"http://up.qiniu.com",multipart_params:{token:""}});var j=new plupload.Uploader(c);return j.bind("Init",function(){h()}),j.init(),j.bind("FilesAdded",function(a,b){var c=a.getOption&&a.getOption("auto_start");c=c||a.settings&&a.settings.auto_start,c&&$.each(b,function(){a.start()}),a.refresh()}),j.bind("BeforeUpload",function(c,d){f="";var e=function(c,d,e){var f;f=b.save_key?{token:a.token}:{key:i(c,d,e),token:a.token};var g=b.x_vars;if(void 0!==g&&"object"==typeof g)for(var h in g)g.hasOwnProperty(h)&&("function"==typeof g[h]?f["x:"+h]=g[h](c,d):"object"!=typeof g[h]&&(f["x:"+h]=g[h]));c.setOption({url:"http://up.qiniu.com/",multipart:!0,chunk_size:void 0,multipart_params:f})},g=c.getOption&&c.getOption("chunk_size");if(g=g||c.settings&&c.settings.chunk_size,"html5"===j.runtime&&g)if(d.size<g)e(c,d,a.key_handler);else{var h=g;f="",c.setOption({url:"http://up.qiniu.com/mkblk/"+h,multipart:!1,chunk_size:g,headers:{Authorization:"UpToken "+a.token},multipart_params:{}})}else e(c,d,a.key_handler)}),j.bind("ChunkUploaded",function(b,c,d){var e=a.parseJSON(d.response);f=f?f+","+e.ctx:e.ctx;var g=d.total-d.offset,h=b.getOption&&b.getOption("chunk_size");h=h||b.settings&&b.settings.chunk_size,h>g&&b.setOption({url:"http://up.qiniu.com/mkblk/"+g})}),j.bind("Error",function(b){return function(c,d){var e="",f=d.file;if(f){switch(d.code){case plupload.FAILED:e="上传失败。请稍后再试。";break;case plupload.FILE_SIZE_ERROR:var g=c.getOption&&c.getOption("max_file_size");g=g||c.settings&&c.settings.max_file_size,e="浏览器最大可上传"+g+"。更大文件请使用命令行工具。";break;case plupload.FILE_EXTENSION_ERROR:e="文件验证失败。请稍后重试。";break;case plupload.HTTP_ERROR:var h=a.parseJSON(d.response),i=h.error;switch(d.status){case 400:e="请求报文格式错误。";break;case 401:e="客户端认证授权失败。请重试或提交反馈。";break;case 405:e="客户端请求错误。请重试或提交反馈。";break;case 579:e="资源上传成功，但回调失败。";break;case 599:e="网络连接异常。请重试或提交反馈。";break;case 614:e="文件已存在。";try{h=a.parseJSON(h.error),i=h.error||"file exists"}catch(k){}break;case 631:e="指定空间不存在。";break;case 701:e="上传数据块校验出错。请重试或提交反馈。";break;default:e="未知错误。"}e=e+"("+d.status+"："+i+")";break;case plupload.SECURITY_ERROR:e="安全配置错误。请联系网站管理员。";break;case plupload.GENERIC_ERROR:e="上传失败。请稍后再试。";break;case plupload.IO_ERROR:e="上传失败。请稍后再试。";break;case plupload.INIT_ERROR:e="网站配置错误。请联系网站管理员。",j.destroy();break;default:e=d.message+d.details}b&&b(c,d,e)}c.refresh()}}(d)),j.bind("FileUploaded",function(c){return function(d,e,g){var h=a.parseJSON(g.response);if(f=f?f:h.ctx){var k="";b.save_key||(k=i(d,e,a.key_handler),k=k?"/key/"+a.URLSafeBase64Encode(k):"");var l=b.x_vars,m="",n="";if(void 0!==l&&"object"==typeof l)for(var o in l)l.hasOwnProperty(o)&&("function"==typeof l[o]?m=a.URLSafeBase64Encode(l[o](d,e)):"object"!=typeof l[o]&&(m=a.URLSafeBase64Encode(l[o])),n+="/x:"+o+"/"+m);var p="http://up.qiniu.com/mkfile/"+e.size+k+n,q=a.createAjax();q.open("POST",p,!0),q.setRequestHeader("Content-Type","text/plain;charset=UTF-8"),q.setRequestHeader("Authorization","UpToken "+a.token),q.send(f),q.onreadystatechange=function(){if(4===q.readyState)if(200===q.status){var a=q.responseText;c&&c(d,e,a)}else j.trigger("Error",{status:q.status,response:q.responseText,file:e,code:-200})}}else c&&c(d,e,g.response)}}(e)),j},this.getUrl=function(a){if(!a)return!1;a=encodeURI(a);var b=this.domain;return"/"!==b.slice(b.length-1)&&(b+="/"),b+a},this.imageView2=function(a,b){var c=a.mode||"",d=a.w||"",e=a.h||"",f=a.quality||"",g=a.format||"";if(!c)return!1;if(!d&&!e)return!1;var h="imageView2/"+c;return h+=d?"/w/"+d:"",h+=e?"/h/"+e:"",h+=f?"/q/"+f:"",h+=g?"/format/"+g:"",b&&(h=this.getUrl(b)+"?"+h),h},this.imageMogr2=function(a,b){var c=a["auto-orient"]||"",d=a.thumbnail||"",e=a.strip||"",f=a.gravity||"",g=a.crop||"",h=a.quality||"",i=a.rotate||"",j=a.format||"",k=a.blur||"",l="imageMogr2";return l+=c?"/auto-orient":"",l+=d?"/thumbnail/"+d:"",l+=e?"/strip":"",l+=f?"/gravity/"+f:"",l+=h?"/quality/"+h:"",l+=g?"/crop/"+g:"",l+=i?"/rotate/"+i:"",l+=j?"/format/"+j:"",l+=k?"/blur/"+k:"",b&&(l=this.getUrl(b)+"?"+l),l},this.watermark=function(a,b){var c=a.mode;if(!c)return!1;var d="watermark/"+c;if(1===c){var e=a.image||"";if(!e)return!1;d+=e?"/image/"+this.URLSafeBase64Encode(e):""}else{if(2!==c)return!1;var 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b&&a?"exif"===a?this.exif(b):"imageInfo"===a?this.imageInfo(b):!1:!1},this.pipeline=function(a,b){var c,d,e="[object Array]"===Object.prototype.toString.call(a),f="";if(e){for(var g=0,h=a.length;h>g;g++){if(c=a[g],!c.fop)return!1;switch(c.fop){case"watermark":f+=this.watermark(c)+"|";break;case"imageView2":f+=this.imageView2(c)+"|";break;case"imageMogr2":f+=this.imageMogr2(c)+"|";break;default:d=!0}if(d)return!1}if(b){f=this.getUrl(b)+"?"+f;var i=f.length;"|"===f.slice(i-1)&&(f=f.slice(0,i-1))}return f}return!1}}var Qiniu=new QiniuJsSDK;
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+function QiniuJsSDK(){this.detectIEVersion=function(){for(var a=4,b=document.createElement("div"),c=b.getElementsByTagName("i");b.innerHTML="<!--[if gt IE "+a+"]><i></i><![endif]-->",c[0];)a++;return a>4?a:!1},this.isImage=function(a){var b,c="",d=["png","jpg","jpeg","gif","bmp"],e=/\.([a-zA-Z0-9]+)(\?|\@|$)/;if(!a||!e.test(a))return!1;b=e.exec(a),c=b[1].toLowerCase();for(var f=0,g=d.length;g>f;f++)if(c===d[f])return!0;return!1},this.getFileExtension=function(a){var b,c=a.split(".");return b=1===c.length||""===c[0]&&2===c.length?"":c.pop().toLowerCase()},this.utf8_encode=function(a){if(null===a||"undefined"==typeof a)return"";var b,c,d=a+"",e="",f=0;b=c=0,f=d.length;for(var g=0;f>g;g++){var h=d.charCodeAt(g),i=null;if(128>h)c++;else if(h>127&&2048>h)i=String.fromCharCode(h>>6|192,63&h|128);else if(63488&h^!0)i=String.fromCharCode(h>>12|224,h>>6&63|128,63&h|128);else{if(64512&h^!0)throw new RangeError("Unmatched trail surrogate at "+g);var j=d.charCodeAt(++g);if(64512&j^!0)throw new 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window.JSON&&window.JSON.parse?window.JSON.parse(a):null===a?a:"string"==typeof a&&(a=this.trim(a),a&&/^[\],:{}\s]*$/.test(a.replace(/\\(?:["\\\/bfnrt]|u[\da-fA-F]{4})/g,"@").replace(/"[^"\\\r\n]*"|true|false|null|-?(?:\d+\.|)\d+(?:[eE][+-]?\d+|)/g,"]").replace(/(?:^|:|,)(?:\s*\[)+/g,"")))?function(){return a}():void 0},this.trim=function(a){return null===a?"":this.trim.call(a)};var a=this;this.uploader=function(b){if(!b.domain)throw"uptoken_url or domain is required!";if(!b.browse_button)throw"browse_button is required!";var c={},d=b.init&&b.init.Error,e=b.init&&b.init.FileUploaded;b.init.Error=function(){},b.init.FileUploaded=function(){},a.uptoken_url=b.uptoken_url,a.token="",a.key_handler="function"==typeof b.init.Key?b.init.Key:"",this.domain=b.domain;var f="",g=function(){var c,d,e,f=a.detectIEVersion();f&&9>=f&&b.chunk_size&&b.runtimes.indexOf("flash")>=0?b.chunk_size=0:(c=20,d=4<<c,e=plupload.parseSize(b.chunk_size),e>d&&(b.chunk_size=d))};g();var h=function(){if(b.uptoken)a.token=b.uptoken;else{var c=a.createAjax();c.open("GET",a.uptoken_url,!0),c.setRequestHeader("If-Modified-Since","0"),c.onreadystatechange=function(){if(4===c.readyState&&200===c.status){var b=a.parseJSON(c.responseText);a.token=b.uptoken}},c.send()}},i=function(c,d,e){var f="",g=!1;if(!b.save_key)if(g=c.getOption&&c.getOption("unique_names"),g=g||c.settings&&c.settings.unique_names){var h=a.getFileExtension(d.name);f=h?d.id+"."+h:d.id}else f="function"==typeof e?e(c,d):d.name;return f};plupload.extend(c,b,{url:"http://up.qiniu.com",multipart_params:{token:""}});var j=new plupload.Uploader(c);return j.bind("Init",function(){h()}),j.init(),j.bind("FilesAdded",function(a,b){var c=a.getOption&&a.getOption("auto_start");c=c||a.settings&&a.settings.auto_start,c&&$.each(b,function(){a.start()}),a.refresh()}),j.bind("BeforeUpload",function(c,d){f="";var e=function(c,d,e){var f;f=b.save_key?{token:a.token}:{key:i(c,d,e),token:a.token};var g=b.x_vars;if(void 0!==g&&"object"==typeof g)for(var h in g)g.hasOwnProperty(h)&&("function"==typeof g[h]?f["x:"+h]=g[h](c,d):"object"!=typeof g[h]&&(f["x:"+h]=g[h]));c.setOption({url:"http://up.qiniu.com/",multipart:!0,chunk_size:void 0,multipart_params:f})},g=c.getOption&&c.getOption("chunk_size");if(g=g||c.settings&&c.settings.chunk_size,"html5"===j.runtime&&g)if(d.size<g)e(c,d,a.key_handler);else{var h=g;f="",c.setOption({url:"http://up.qiniu.com/mkblk/"+h,multipart:!1,chunk_size:g,headers:{Authorization:"UpToken "+a.token},multipart_params:{}})}else e(c,d,a.key_handler)}),j.bind("ChunkUploaded",function(b,c,d){var e=a.parseJSON(d.response);f=f?f+","+e.ctx:e.ctx;var g=d.total-d.offset,h=b.getOption&&b.getOption("chunk_size");h=h||b.settings&&b.settings.chunk_size,h>g&&b.setOption({url:"http://up.qiniu.com/mkblk/"+g})}),j.bind("Error",function(b){return function(c,d){var e="",f=d.file;if(f){switch(d.code){case plupload.FAILED:e="上传失败。请稍后再试。";break;case plupload.FILE_SIZE_ERROR:var g=c.getOption&&c.getOption("max_file_size");g=g||c.settings&&c.settings.max_file_size,e="浏览器最大可上传"+g+"。更大文件请使用命令行工具。";break;case plupload.FILE_EXTENSION_ERROR:e="文件验证失败。请稍后重试。";break;case plupload.HTTP_ERROR:var h=a.parseJSON(d.response),i=h.error;switch(d.status){case 400:e="请求报文格式错误。";break;case 401:e="客户端认证授权失败。请重试或提交反馈。";break;case 405:e="客户端请求错误。请重试或提交反馈。";break;case 579:e="资源上传成功，但回调失败。";break;case 599:e="网络连接异常。请重试或提交反馈。";break;case 614:e="文件已存在。";try{h=a.parseJSON(h.error),i=h.error||"file exists"}catch(k){throw"invalid json format"}break;case 631:e="指定空间不存在。";break;case 701:e="上传数据块校验出错。请重试或提交反馈。";break;default:e="未知错误。"}e=e+"("+d.status+"："+i+")";break;case plupload.SECURITY_ERROR:e="安全配置错误。请联系网站管理员。";break;case plupload.GENERIC_ERROR:e="上传失败。请稍后再试。";break;case plupload.IO_ERROR:e="上传失败。请稍后再试。";break;case plupload.INIT_ERROR:e="网站配置错误。请联系网站管理员。",j.destroy();break;default:e=d.message+d.details}b&&b(c,d,e)}c.refresh()}}(d)),j.bind("FileUploaded",function(c){return function(d,e,g){var h=function(d,e,f){if(b.downtoken_url){var g=a.createAjax();g.open("POST",b.downtoken_url,!0),g.setRequestHeader("Content-type","application/x-www-form-urlencoded"),g.onreadystatechange=function(){if(4===g.readyState)if(200===g.status){var b;try{b=a.parseJSON(g.responseText)}catch(h){throw"invalid json format"}var i={};plupload.extend(i,a.parseJSON(f),b),c&&c(d,e,JSON.stringify(i))}else j.trigger("Error",{status:g.status,response:g.responseText,file:e,code:plupload.HTTP_ERROR})},g.send("key="+a.parseJSON(f).key+"&domain="+b.domain)}else c&&c(d,e,f)},k=a.parseJSON(g.response);if(f=f?f:k.ctx){var l="";b.save_key||(l=i(d,e,a.key_handler),l=l?"/key/"+a.URLSafeBase64Encode(l):"");var m=b.x_vars,n="",o="";if(void 0!==m&&"object"==typeof m)for(var p in m)m.hasOwnProperty(p)&&("function"==typeof m[p]?n=a.URLSafeBase64Encode(m[p](d,e)):"object"!=typeof m[p]&&(n=a.URLSafeBase64Encode(m[p])),o+="/x:"+p+"/"+n);var q="http://up.qiniu.com/mkfile/"+e.size+l+o,r=a.createAjax();r.open("POST",q,!0),r.setRequestHeader("Content-Type","text/plain;charset=UTF-8"),r.setRequestHeader("Authorization","UpToken "+a.token),r.onreadystatechange=function(){if(4===r.readyState)if(200===r.status){var a=r.responseText;h(d,e,a)}else j.trigger("Error",{status:r.status,response:r.responseText,file:e,code:-200})},r.send(f)}else h(d,e,g.response)}}(e)),j},this.getUrl=function(a){if(!a)return!1;a=encodeURI(a);var b=this.domain;return"/"!==b.slice(b.length-1)&&(b+="/"),b+a},this.imageView2=function(a,b){var c=a.mode||"",d=a.w||"",e=a.h||"",f=a.quality||"",g=a.format||"";if(!c)return!1;if(!d&&!e)return!1;var h="imageView2/"+c;return h+=d?"/w/"+d:"",h+=e?"/h/"+e:"",h+=f?"/q/"+f:"",h+=g?"/format/"+g:"",b&&(h=this.getUrl(b)+"?"+h),h},this.imageMogr2=function(a,b){var c=a["auto-orient"]||"",d=a.thumbnail||"",e=a.strip||"",f=a.gravity||"",g=a.crop||"",h=a.quality||"",i=a.rotate||"",j=a.format||"",k=a.blur||"",l="imageMogr2";return l+=c?"/auto-orient":"",l+=d?"/thumbnail/"+d:"",l+=e?"/strip":"",l+=f?"/gravity/"+f:"",l+=h?"/quality/"+h:"",l+=g?"/crop/"+g:"",l+=i?"/rotate/"+i:"",l+=j?"/format/"+j:"",l+=k?"/blur/"+k:"",b&&(l=this.getUrl(b)+"?"+l),l},this.watermark=function(a,b){var c=a.mode;if(!c)return!1;var d="watermark/"+c;if(1===c){var e=a.image||"";if(!e)return!1;d+=e?"/image/"+this.URLSafeBase64Encode(e):""}else{if(2!==c)return!1;var f=a.text?a.text:"",g=a.font?a.font:"",h=a.fontsize?a.fontsize:"",i=a.fill?a.fill:"";if(!f)return!1;d+=f?"/text/"+this.URLSafeBase64Encode(f):"",d+=g?"/font/"+this.URLSafeBase64Encode(g):"",d+=h?"/fontsize/"+h:"",d+=i?"/fill/"+this.URLSafeBase64Encode(i):""}var j=a.dissolve||"",k=a.gravity||"",l=a.dx||"",m=a.dy||"";return d+=j?"/dissolve/"+j:"",d+=k?"/gravity/"+k:"",d+=l?"/dx/"+l:"",d+=m?"/dy/"+m:"",b&&(d=this.getUrl(b)+"?"+d),d},this.imageInfo=function(a){if(!a)return!1;var b,c=this.getUrl(a)+"?imageInfo",d=this.createAjax(),e=this;return d.open("GET",c,!1),d.onreadystatechange=function(){4===d.readyState&&200===d.status&&(b=e.parseJSON(d.responseText))},d.send(),b},this.exif=function(a){if(!a)return!1;var b,c=this.getUrl(a)+"?exif",d=this.createAjax(),e=this;return d.open("GET",c,!1),d.onreadystatechange=function(){4===d.readyState&&200===d.status&&(b=e.parseJSON(d.responseText))},d.send(),b},this.get=function(a,b){return b&&a?"exif"===a?this.exif(b):"imageInfo"===a?this.imageInfo(b):!1:!1},this.pipeline=function(a,b){var c,d,e="[object Array]"===Object.prototype.toString.call(a),f="";if(e){for(var g=0,h=a.length;h>g;g++){if(c=a[g],!c.fop)return!1;switch(c.fop){case"watermark":f+=this.watermark(c)+"|";break;case"imageView2":f+=this.imageView2(c)+"|";break;case"imageMogr2":f+=this.imageMogr2(c)+"|";break;default:d=!0}if(d)return!1}if(b){f=this.getUrl(b)+"?"+f;var i=f.length;"|"===f.slice(i-1)&&(f=f.slice(0,i-1))}return f}return!1}}var Qiniu=new QiniuJsSDK;
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