replace upload with new chunkupload.js cooler, faster, better and hopefully fixes large file upload issues

edgware/static/js/upload/chunkupload.js

@@ -0,0 +1,201 @@
+// vi:si:et:sw=4:sts=4:ts=4
+// GPL2+/MIT 2012
+'use strict';
+/*
+ Usage:
+  ChunkUploader({
+      file: file,
+      url: '/add',
+      data: {'name': file.name},
+      progress: function(data) {
+        console.log(data.progress);
+      },
+      callback: function(result) {
+          if(result.progress == 1) {
+              var response = JSON.parse(result.responseText);
+              if(response.resultUrl) {
+                document.location.href = response.resultUrl;
+              } else {
+                alert(response.status;
+              }
+          } else {
+              alert('!!!');
+          }
+      }
+  });
+*/
+function ChunkUploader(options) {
+    var chunkSize = options.size || 1024*1024,
+        chunkUrl,
+        file = options.file,
+        maxRetry = -1,
+        retries = 0,
+        request,
+        that = {};
+
+    initUpload();
+
+    function done() {
+        options.callback({
+          status: that.status,
+          progress: that.progress,
+          responseText: that.responseText
+        });
+    }
+
+    function initUpload() {
+        //request upload slot from server
+        that.status = 'requesting chunk upload';
+        that.progress = 0;
+        request = new XMLHttpRequest();
+        request.addEventListener('load', function (evt) {
+            var response = {};
+            that.responseText = evt.target.responseText;
+            try {
+                response = JSON.parse(evt.target.responseText);
+            } catch(e) {
+                response = {};
+                that.status = 'failed to parse response';
+                that.progress = -1;
+                done();
+            }
+            if (response.maxRetry) {
+                maxRetry = response.maxRetry;
+            }
+            chunkUrl = response.uploadUrl;
+            if (document.location.protocol == 'https:') {
+                chunkUrl = chunkUrl.replace(/http:\/\//, 'https://');
+            }
+            if (chunkUrl) {
+                that.status = 'uploading';
+                that.progress = 0.0;
+                //start upload
+                uploadChunk(0);
+            } else {
+                that.status = 'upload failed, no upload url provided';
+                that.progress = -1;
+                done();
+            }
+        }, false);
+        request.addEventListener('error', function (evt) {
+            that.status = 'uplaod failed';
+            that.progress = -1;
+            that.responseText = evt.target.responseText;
+            done();
+        }, false);
+        request.addEventListener('abort', function (evt) {
+            that.status = 'aborted';
+            that.progress = -1;
+            done();
+        }, false);
+        var formData = new FormData();
+        
+        Object.keys(options.data).forEach(function(key) {
+            formData.append(key, options.data[key]);
+        });
+        request.open('POST', options.url);
+        request.send(formData);
+    }
+
+    function progress(p) {
+        that.progress = p;
+        options.progress({
+            progress: that.progress,
+            status: that.status
+        });
+    }
+
+    function uploadChunk(chunkId) {
+        var bytesAvailable = file.size,
+            chunk,
+            chunkOffset = chunkId * chunkSize;
+
+        if(file.mozSlice) {
+            chunk = file.mozSlice(chunkOffset, chunkOffset+chunkSize, file.type);
+        } else if(file.webkitSlice) {
+            chunk = file.webkitSlice(chunkOffset, chunkOffset+chunkSize, file.type);
+        } else if(file.slice) {
+            chunk = file.slice(chunkOffset, chunkOffset+chunkSize, file.type);
+        } else {
+            that.status = 'Sorry, your browser is currently not supported.';
+            done()
+        }
+
+        progress(parseFloat(chunkOffset)/bytesAvailable);
+
+        request = new XMLHttpRequest();
+        request.addEventListener('load', function (evt) {
+            var response;
+            that.responseText = evt.target.responseText;
+            try {
+                response = JSON.parse(evt.target.responseText);
+            } catch(e) {
+                response = {};
+            }
+            if (response.done == 1) {
+                //upload finished
+                that.resultUrl = response.resultUrl;
+                that.progress = 1;
+                that.status = 'done';
+                done();
+            } else if (response.result == 1) {
+                //reset retry counter
+                retries = 0;
+                //start uploading next chunk
+                uploadChunk(chunkId + 1);
+            } else {
+                //failed to upload, try again in 5 second
+                retries++;
+                if (maxRetry > 0 && retries > maxRetry) {
+                    that.status = 'uplaod failed';
+                    that.progress = -1;
+                    done();
+                } else {
+                    setTimeout(function() {
+                        uploadChunk(chunkId);
+                    }, 5000);
+                }
+            }
+        }, false);
+        request.addEventListener('error', function (evt) {
+            //failed to upload, try again in 3 second
+            retries++;
+            if (maxRetry > 0 && retries > maxRetry) {
+                that.status = 'uplaod failed';
+                that.progress = -1;
+                done();
+            } else {
+                setTimeout(function() {
+                    uploadChunk(chunkId);
+                }, 3000);
+            }
+        }, false);
+        request.upload.addEventListener('progress', function (evt) {
+            if (evt.lengthComputable) {
+                progress(parseFloat(chunkOffset + evt.loaded) / bytesAvailable);
+            }
+        }, false);
+        request.addEventListener('abort', function (evt) {
+            that.status = 'aborted';
+            that.progress = -1;
+            done();
+        }, false);
+
+        var formData = new FormData();
+        formData.append('chunkId', chunkId);
+        if (bytesAvailable <= chunkOffset + chunkSize) {
+            formData.append('done', 1);
+        }
+        formData.append('chunk', chunk);
+        request.open('POST', chunkUrl, true);
+        request.send(formData);
+    }
+
+    that.abort = function() {
+        if (request) {
+            request.abort();
+            request = null;
+        }
+    };
+    return that;
+}

edgware/static/js/upload/edgeUpload.js

@@ -1,12 +1,14 @@
-
+// vi:si:et:sw=2:sts=2:ts=2
 
 
 
 
 function doProgress(progress) {
+  var status = progress.status;
+  var progress = progress.progress;
     //do something with status and progress, i.e. set progressbar width:
   $('#progress').css('width', parseInt(progress*100, 10) +'%');
-  $('#progressstatus').html(parseInt(progress*100, 10) + '% - ' + ogg.status);
+  $('#progressstatus').html(parseInt(progress*100, 10) + '% - ' + status);
 }
 
 
@@ -92,6 +94,22 @@ UploadQueue.prototype.upload = function(no) {
   this.isUploading = true;
   $('#progressbar').show();
   $li.addClass("uploading");
+  ogg = ChunkUploader({
+    'file': fil,
+    'url': add_url,
+    'data': data,
+    'callback': function(response) {
+      var data = JSON.parse(response.responseText);
+      //console.log("data", data);
+      if (data.resultUrl) {
+        that.markDone(no, response);              
+      } else {
+        $('#progressbar').html(response.status);
+      }
+    },
+    'progress': doProgress
+  });
+  /*
   ogg = FirefoggUploader(fil, add_url, data, function(ogg) {
     if (ogg.resultUrl) {
       that.markDone(no, ogg);              
@@ -99,6 +117,7 @@ UploadQueue.prototype.upload = function(no) {
       $('#progressbar').html(ogg.status);
     }
   }, doProgress);
+  */  
 };
 
 function fileUploadedCallback(jq, data) {
@@ -106,6 +125,7 @@ function fileUploadedCallback(jq, data) {
 //  console.log(data);
 
   var d = JSON.parse(data.responseText);
+//  console.log("dd", d)
   var fileId = d.fileId;
   jq.data("fileId", fileId);
   if (d.hasOwnProperty("errors")) {

edgware/templates/upload_files.html

@@ -11,7 +11,8 @@
 {% block extra_head %}
   <script type="text/javascript" src="/static/js/upload/progressbar.js"></script>
 <!--  <script type="text/javascript" src="/static/js/upload/firefogg.js"></script> -->
-  <script type="text/javascript" src="/static/js/upload/upload.js"></script>
+<!--  <script type="text/javascript" src="/static/js/upload/upload.js"></script> -->
+  <script type="text/javascript" src="/static/js/upload/chunkupload.js"></script>
   <script type="text/javascript" src="/static/js/upload/edgeUpload.js"></script>
   
   <script type="text/javascript">