mirror of
https://github.com/onionshare/onionshare.git
synced 2024-12-29 01:06:16 -05:00
Don't use jQuery for the ajax request, instead manually use an XMLHttpRequest in order to more easily support multiple upload divs
This commit is contained in:
Micah Lee
parent
c349e6049c
commit
77aa909e35
@ -4,43 +4,6 @@ $(function(){
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$('#flashes').append($('<li>').addClass(category).text(message));
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};
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// Add an upload
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var new_upload_div = function(xhr, filenames) {
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/*
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The DOM for an upload looks something like this:
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<div class="upload">
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<div class="upload-meta">
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<input class="cancel" type="button" value="Cancel" />
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<div class="upload-filename">educational-video.mp4, secret-plans.pdf</div>
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<div class="upload-status">Sending to first Tor node ...</div>
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</div>
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<progress value="25" max="100"></progress>
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</div>
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*/
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var $progress = $('<progress>').attr({ value: '0', max: 100 });
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var $cancel_button = $('<input>').addClass('cancel').attr({ type: 'button', value: 'Cancel' });
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var $upload_filename = $('<div>').addClass('upload-filename').text(filenames.join(', '));
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var $upload_status = $('<div>').addClass('upload-status').text('Sending data to initial Tor node ...');
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var $upload_div = $('<div>').addClass('upload')
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.append(
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$('<div>').addClass('upload-meta')
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.append($cancel_button)
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.append($upload_filename)
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.append($upload_status)
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)
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.append($progress);
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$cancel_button.click(function(){
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// Abort the upload, and remove the upload div
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xhr.abort();
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$upload_div.remove()
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});
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return $upload_div;
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};
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// Intercept submitting the form
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$('#send').submit(function(event){
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event.preventDefault();
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@ -58,83 +21,112 @@ $(function(){
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// Reset the upload form
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$('#send').get(0).reset();
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// Start upload
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xhr = $.ajax({
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method: 'POST',
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url: window.location.pathname + '/upload-ajax',
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data: formData,
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// Tell jQuery not to process data or worry about content-type
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cache: false,
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contentType: false,
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processData: false,
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// Custom XMLHttpRequest
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xhr: function() {
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var xhr = $.ajaxSettings.xhr();
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if(xhr.upload) {
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xhr.upload.addEventListener('progress', function(event) {
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// Update progress bar for this specific upload
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if(event.lengthComputable) {
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console.log('upload progress', ''+event.loaded+' bytes / '+event.total+' bytes');
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$('progress', this.$upload_div).attr({
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value: event.loaded,
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max: event.total,
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});
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}
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// Don't use jQuery for ajax request, because the upload progress event doesn't
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// have access to the the XMLHttpRequest object
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var ajax = new XMLHttpRequest();
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// If it's finished sending all data to the first Tor node, remove cancel button
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// and update the status
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if(event.loaded == event.total) {
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console.log('upload progress', 'complete');
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$('.cancel', this.$upload_div).remove();
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$('.upload-status', this.$upload_div).html('<img src="/static/img/ajax.gif" alt="" /> Waiting for data to finish traversing Tor network ...');
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}
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}, false);
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}
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return xhr;
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},
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success: function(data, textStatus, xhr){
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console.log('upload finished', data);
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// Remove the upload div
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xhr.$upload_div.remove();
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// Parse response
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try {
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var response = JSON.parse(data);
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// The 'new_body' response replaces the whole HTML document and ends
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if('new_body' in response) {
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$('body').html(response['new_body']);
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return;
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}
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// Show error flashes
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if('error_flashes' in response) {
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for(var i=0; i<response['error_flashes'].length; i++) {
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flash('error', response['error_flashes'][i]);
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}
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}
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// Show info flashes
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if('info_flashes' in response) {
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for(var i=0; i<response['info_flashes'].length; i++) {
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flash('info', response['info_flashes'][i]);
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}
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}
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} catch(e) {
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console.log('invalid response');
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flash('error', 'Invalid response from server: '+data);
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}
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},
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error: function(xhr, textStatus, errorThrown){
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console.log('error', errorThrown);
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flash('error', 'Error uploading: ' + errorThrown);
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ajax.upload.addEventListener('progress', function(event){
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// Update progress bar for this specific upload
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if(event.lengthComputable) {
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console.log('upload progress', ''+event.loaded+' bytes / '+event.total+' bytes');
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$('progress', ajax.$upload_div).attr({
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value: event.loaded,
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max: event.total,
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});
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}
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});
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console.log('upload started', filenames);
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// If it's finished sending all data to the first Tor node, remove cancel button
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// and update the status
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if(event.loaded == event.total) {
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console.log('upload progress', 'complete');
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$('.cancel', ajax.$upload_div).remove();
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$('.upload-status', ajax.$upload_div).html('<img src="/static/img/ajax.gif" alt="" /> Waiting for data to finish traversing Tor network ...');
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}
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}, false);
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ajax.addEventListener('load', function(event){
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console.log('upload finished', ajax.response);
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// Remove the upload div
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ajax.$upload_div.remove();
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// Parse response
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try {
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var response = JSON.parse(ajax.response);
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// The 'new_body' response replaces the whole HTML document and ends
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if('new_body' in response) {
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$('body').html(response['new_body']);
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return;
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}
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// Show error flashes
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if('error_flashes' in response) {
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for(var i=0; i<response['error_flashes'].length; i++) {
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flash('error', response['error_flashes'][i]);
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}
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}
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// Show info flashes
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if('info_flashes' in response) {
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for(var i=0; i<response['info_flashes'].length; i++) {
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flash('info', response['info_flashes'][i]);
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}
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}
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} catch(e) {
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console.log('invalid response');
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flash('error', 'Invalid response from server: '+data);
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}
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}, false);
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ajax.addEventListener('error', function(event){
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console.log('error', event);
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flash('error', 'Error uploading');
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}, false);
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ajax.addEventListener('abort', function(event){
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console.log('abort', event);
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flash('error', 'Upload aborted: '+filenames.join(', '));
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}, false);
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// Make the upload div
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xhr.$upload_div = new_upload_div(xhr, filenames);
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$('#uploads').append(xhr.$upload_div);
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/* The DOM for an upload looks something like this:
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<div class="upload">
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<div class="upload-meta">
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<input class="cancel" type="button" value="Cancel" />
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<div class="upload-filename">educational-video.mp4, secret-plans.pdf</div>
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<div class="upload-status">Sending to first Tor node ...</div>
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</div>
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<progress value="25" max="100"></progress>
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</div> */
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var $progress = $('<progress>').attr({ value: '0', max: 100 });
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var $cancel_button = $('<input>').addClass('cancel').attr({ type: 'button', value: 'Cancel' });
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var $upload_filename = $('<div>').addClass('upload-filename').text(filenames.join(', '));
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var $upload_status = $('<div>').addClass('upload-status').text('Sending data to initial Tor node ...');
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var $upload_div = $('<div>')
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.addClass('upload')
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.append(
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$('<div>').addClass('upload-meta')
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.append($cancel_button)
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.append($upload_filename)
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.append($upload_status)
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)
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.append($progress);
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$cancel_button.click(function(){
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// Abort the upload, and remove the upload div
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ajax.abort();
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$upload_div.remove()
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});
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ajax.$upload_div = $upload_div;
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$('#uploads').append($upload_div);
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// Send the request
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ajax.open('POST', window.location.pathname + '/upload-ajax', true);
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ajax.send(formData);
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console.log('upload started');
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});
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});
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