/*
* Copyright (c) 2014
*
* This file is licensed under the Affero General Public License version 3
* or later.
*
* See the COPYING-README file.
*
*/
/**
* The file upload code uses several hooks to interact with blueimps jQuery file upload library:
* 1. the core upload handling hooks are added when initializing the plugin,
* 2. if the browser supports progress events they are added in a separate set after the initialization
* 3. every app can add it's own triggers for fileupload
* - files adds d'n'd handlers and also reacts to done events to add new rows to the filelist
* - TODO pictures upload button
* - TODO music upload button
*/
/* global Files, FileList, jQuery, oc_requesttoken, humanFileSize, getUniqueName */
/**
* Function that will allow us to know if Ajax uploads are supported
* @link https://github.com/New-Bamboo/example-ajax-upload/blob/master/public/index.html
* also see article @link http://blog.new-bamboo.co.uk/2012/01/10/ridiculously-simple-ajax-uploads-with-formdata
*/
function supportAjaxUploadWithProgress() {
return supportFileAPI() && supportAjaxUploadProgressEvents() && supportFormData();
// Is the File API supported?
function supportFileAPI() {
var fi = document.createElement('INPUT');
fi.type = 'file';
return 'files' in fi;
}
// Are progress events supported?
function supportAjaxUploadProgressEvents() {
var xhr = new XMLHttpRequest();
return !! (xhr && ('upload' in xhr) && ('onprogress' in xhr.upload));
}
// Is FormData supported?
function supportFormData() {
return !! window.FormData;
}
}
/**
* keeps track of uploads in progress and implements callbacks for the conflicts dialog
* @namespace
*/
OC.Upload = {
_uploads: [],
/**
* deletes the jqHXR object from a data selection
* @param {object} data
*/
deleteUpload:function(data) {
delete data.jqXHR;
},
/**
* cancels all uploads
*/
cancelUploads:function() {
this.log('canceling uploads');
jQuery.each(this._uploads, function(i, jqXHR) {
jqXHR.abort();
});
this._uploads = [];
},
rememberUpload:function(jqXHR) {
if (jqXHR) {
this._uploads.push(jqXHR);
}
},
/**
* Checks the currently known uploads.
* returns true if any hxr has the state 'pending'
* @returns {boolean}
*/
isProcessing:function() {
var count = 0;
jQuery.each(this._uploads, function(i, data) {
if (data.state() === 'pending') {
count++;
}
});
return count > 0;
},
/**
* callback for the conflicts dialog
* @param {object} data
*/
onCancel:function(data) {
this.cancelUploads();
},
/**
* callback for the conflicts dialog
* calls onSkip, onReplace or onAutorename for each conflict
* @param {object} conflicts - list of conflict elements
*/
onContinue:function(conflicts) {
var self = this;
//iterate over all conflicts
jQuery.each(conflicts, function (i, conflict) {
conflict = $(conflict);
var keepOriginal = conflict.find('.original input[type="checkbox"]:checked').length === 1;
var keepReplacement = conflict.find('.replacement input[type="checkbox"]:checked').length === 1;
if (keepOriginal && keepReplacement) {
// when both selected -> autorename
self.onAutorename(conflict.data('data'));
} else if (keepReplacement) {
// when only replacement selected -> overwrite
self.onReplace(conflict.data('data'));
} else {
// when only original seleted -> skip
// when none selected -> skip
self.onSkip(conflict.data('data'));
}
});
},
/**
* handle skipping an upload
* @param {object} data
*/
onSkip:function(data) {
this.log('skip', null, data);
this.deleteUpload(data);
},
/**
* handle replacing a file on the server with an uploaded file
* @param {object} data
*/
onReplace:function(data) {
this.log('replace', null, data);
if (data.data) {
data.data.append('resolution', 'replace');
} else {
data.formData.push({name:'resolution', value:'replace'}); //hack for ie8
}
data.submit();
},
/**
* handle uploading a file and letting the server decide a new name
* @param {object} data
*/
onAutorename:function(data) {
this.log('autorename', null, data);
if (data.data) {
data.data.append('resolution', 'autorename');
} else {
data.formData.push({name:'resolution', value:'autorename'}); //hack for ie8
}
data.submit();
},
_trace:false, //TODO implement log handler for JS per class?
log:function(caption, e, data) {
if (this._trace) {
console.log(caption);
console.log(data);
}
},
/**
* TODO checks the list of existing files prior to uploading and shows a simple dialog to choose
* skip all, replace all or choose which files to keep
* @param {array} selection of files to upload
* @param {object} callbacks - object with several callback methods
* @param {function} callbacks.onNoConflicts
* @param {function} callbacks.onSkipConflicts
* @param {function} callbacks.onReplaceConflicts
* @param {function} callbacks.onChooseConflicts
* @param {function} callbacks.onCancel
*/
checkExistingFiles: function (selection, callbacks) {
/*
$.each(selection.uploads, function(i, upload) {
var $row = OCA.Files.App.fileList.findFileEl(upload.files[0].name);
if ($row) {
// TODO check filelist before uploading and show dialog on conflicts, use callbacks
}
});
*/
callbacks.onNoConflicts(selection);
},
_hideProgressBar: function() {
$('#uploadprogresswrapper .stop').fadeOut();
$('#uploadprogressbar').fadeOut(function() {
$('#file_upload_start').trigger(new $.Event('resized'));
});
},
_showProgressBar: function() {
$('#uploadprogressbar').fadeIn();
$('#file_upload_start').trigger(new $.Event('resized'));
},
init: function() {
if ( $('#file_upload_start').exists() ) {
var file_upload_param = {
dropZone: $('#content'), // restrict dropZone to content div
autoUpload: false,
sequentialUploads: true,
//singleFileUploads is on by default, so the data.files array will always have length 1
/**
* on first add of every selection
* - check all files of originalFiles array with files in dir
* - on conflict show dialog
* - skip all -> remember as single skip action for all conflicting files
* - replace all -> remember as single replace action for all conflicting files
* - choose -> show choose dialog
* - mark files to keep
* - when only existing -> remember as single skip action
* - when only new -> remember as single replace action
* - when both -> remember as single autorename action
* - start uploading selection
* @param {object} e
* @param {object} data
* @returns {boolean}
*/
add: function(e, data) {
OC.Upload.log('add', e, data);
var that = $(this), freeSpace;
// we need to collect all data upload objects before
// starting the upload so we can check their existence
// and set individual conflict actions. Unfortunately,
// there is only one variable that we can use to identify
// the selection a data upload is part of, so we have to
// collect them in data.originalFiles turning
// singleFileUploads off is not an option because we want
// to gracefully handle server errors like 'already exists'
// create a container where we can store the data objects
if ( ! data.originalFiles.selection ) {
// initialize selection and remember number of files to upload
data.originalFiles.selection = {
uploads: [],
filesToUpload: data.originalFiles.length,
totalBytes: 0,
biggestFileBytes: 0
};
}
var selection = data.originalFiles.selection;
// add uploads
if ( selection.uploads.length < selection.filesToUpload ) {
// remember upload
selection.uploads.push(data);
}
//examine file
var file = data.files[0];
try {
// FIXME: not so elegant... need to refactor that method to return a value
Files.isFileNameValid(file.name);
}
catch (errorMessage) {
data.textStatus = 'invalidcharacters';
data.errorThrown = errorMessage;
}
// in case folder drag and drop is not supported file will point to a directory
// http://stackoverflow.com/a/20448357
if ( ! file.type && file.size%4096 === 0 && file.size <= 102400) {
var dirUploadFailure = false;
try {
var reader = new FileReader();
reader.readAsBinaryString(file);
} catch (NS_ERROR_FILE_ACCESS_DENIED) {
//file is a directory
dirUploadFailure = true;
}
if (file.size === 0) {
// file is empty or a directory
dirUploadFailure = true;
}
if (dirUploadFailure) {
data.textStatus = 'dirorzero';
data.errorThrown = t('files',
'Unable to upload {filename} as it is a directory or has 0 bytes',
{filename: file.name}
);
}
}
// add size
selection.totalBytes += file.size;
// update size of biggest file
selection.biggestFileBytes = Math.max(selection.biggestFileBytes, file.size);
// check PHP upload limit against biggest file
if (selection.biggestFileBytes > $('#upload_limit').val()) {
data.textStatus = 'sizeexceedlimit';
data.errorThrown = t('files',
'Total file size {size1} exceeds upload limit {size2}', {
'size1': humanFileSize(selection.biggestFileBytes),
'size2': humanFileSize($('#upload_limit').val())
});
}
// check free space
freeSpace = $('#free_space').val();
if (freeSpace >= 0 && selection.totalBytes > freeSpace) {
data.textStatus = 'notenoughspace';
data.errorThrown = t('files',
'Not enough free space, you are uploading {size1} but only {size2} is left', {
'size1': humanFileSize(selection.totalBytes),
'size2': humanFileSize($('#free_space').val())
});
}
// end upload for whole selection on error
if (data.errorThrown) {
// trigger fileupload fail
var fu = that.data('blueimp-fileupload') || that.data('fileupload');
fu._trigger('fail', e, data);
return false; //don't upload anything
}
// check existing files when all is collected
if ( selection.uploads.length >= selection.filesToUpload ) {
//remove our selection hack:
delete data.originalFiles.selection;
var callbacks = {
onNoConflicts: function (selection) {
$.each(selection.uploads, function(i, upload) {
upload.submit();
});
},
onSkipConflicts: function (selection) {
//TODO mark conflicting files as toskip
},
onReplaceConflicts: function (selection) {
//TODO mark conflicting files as toreplace
},
onChooseConflicts: function (selection) {
//TODO mark conflicting files as chosen
},
onCancel: function (selection) {
$.each(selection.uploads, function(i, upload) {
upload.abort();
});
}
};
OC.Upload.checkExistingFiles(selection, callbacks);
}
return true; // continue adding files
},
/**
* called after the first add, does NOT have the data param
* @param {object} e
*/
start: function(e) {
OC.Upload.log('start', e, null);
//hide the tooltip otherwise it covers the progress bar
$('#upload').tipsy('hide');
},
submit: function(e, data) {
OC.Upload.rememberUpload(data);
if ( ! data.formData ) {
var fileDirectory = '';
if(typeof data.files[0].relativePath !== 'undefined') {
fileDirectory = data.files[0].relativePath;
}
// noone set update parameters, we set the minimum
data.formData = {
requesttoken: oc_requesttoken,
dir: data.targetDir || FileList.getCurrentDirectory(),
file_directory: fileDirectory
};
}
},
fail: function(e, data) {
OC.Upload.log('fail', e, data);
if (typeof data.textStatus !== 'undefined' && data.textStatus !== 'success' ) {
if (data.textStatus === 'abort') {
OC.Notification.show(t('files', 'Upload cancelled.'));
} else {
// HTTP connection problem
OC.Notification.show(data.errorThrown);
if (data.result) {
var result = JSON.parse(data.result);
if (result && result[0] && result[0].data && result[0].data.code === 'targetnotfound') {
// abort upload of next files if any
OC.Upload.cancelUploads();
}
}
}
//hide notification after 10 sec
setTimeout(function() {
OC.Notification.hide();
}, 10000);
}
OC.Upload.deleteUpload(data);
},
/**
* called for every successful upload
* @param {object} e
* @param {object} data
*/
done:function(e, data) {
OC.Upload.log('done', e, data);
// handle different responses (json or body from iframe for ie)
var response;
if (typeof data.result === 'string') {
response = data.result;
} else {
//fetch response from iframe
response = data.result[0].body.innerText;
}
var result = $.parseJSON(response);
delete data.jqXHR;
var fu = $(this).data('blueimp-fileupload') || $(this).data('fileupload');
if (result.status === 'error' && result.data && result.data.message){
data.textStatus = 'servererror';
data.errorThrown = result.data.message;
fu._trigger('fail', e, data);
} else if (typeof result[0] === 'undefined') {
data.textStatus = 'servererror';
data.errorThrown = t('files', 'Could not get result from server.');
fu._trigger('fail', e, data);
} else if (result[0].status === 'readonly') {
var original = result[0];
var replacement = data.files[0];
OC.dialogs.fileexists(data, original, replacement, OC.Upload);
} else if (result[0].status === 'existserror') {
//show "file already exists" dialog
var original = result[0];
var replacement = data.files[0];
OC.dialogs.fileexists(data, original, replacement, OC.Upload);
} else if (result[0].status !== 'success') {
//delete data.jqXHR;
data.textStatus = 'servererror';
data.errorThrown = result[0].data.message; // error message has been translated on server
fu._trigger('fail', e, data);
} else { // Successful upload
// Checking that the uploaded file is the last one and contained in the current directory
if (data.files[0] === data.originalFiles[data.originalFiles.length - 1] &&
result[0].directory === FileList.getCurrentDirectory()) {
// Scroll to the last uploaded file and highlight all of them
var fileList = _.pluck(data.originalFiles, 'name');
FileList.highlightFiles(fileList);
}
}
},
/**
* called after last upload
* @param {object} e
* @param {object} data
*/
stop: function(e, data) {
OC.Upload.log('stop', e, data);
}
};
// initialize jquery fileupload (blueimp)
var fileupload = $('#file_upload_start').fileupload(file_upload_param);
window.file_upload_param = fileupload;
if (supportAjaxUploadWithProgress()) {
// add progress handlers
fileupload.on('fileuploadadd', function(e, data) {
OC.Upload.log('progress handle fileuploadadd', e, data);
//show cancel button
//if (data.dataType !== 'iframe') { //FIXME when is iframe used? only for ie?
// $('#uploadprogresswrapper .stop').show();
//}
});
// add progress handlers
fileupload.on('fileuploadstart', function(e, data) {
OC.Upload.log('progress handle fileuploadstart', e, data);
$('#uploadprogresswrapper .stop').show();
$('#uploadprogressbar').progressbar({value: 0});
OC.Upload._showProgressBar();
});
fileupload.on('fileuploadprogress', function(e, data) {
OC.Upload.log('progress handle fileuploadprogress', e, data);
//TODO progressbar in row
});
fileupload.on('fileuploadprogressall', function(e, data) {
OC.Upload.log('progress handle fileuploadprogressall', e, data);
var progress = (data.loaded / data.total) * 100;
$('#uploadprogressbar').progressbar('value', progress);
});
fileupload.on('fileuploadstop', function(e, data) {
OC.Upload.log('progress handle fileuploadstop', e, data);
OC.Upload._hideProgressBar();
});
fileupload.on('fileuploadfail', function(e, data) {
OC.Upload.log('progress handle fileuploadfail', e, data);
//if user pressed cancel hide upload progress bar and cancel button
if (data.errorThrown === 'abort') {
OC.Upload._hideProgressBar();
}
});
} else {
// for all browsers that don't support the progress bar
// IE 8 & 9
// show a spinner
fileupload.on('fileuploadstart', function() {
$('#upload').addClass('icon-loading');
$('#upload .icon-upload').hide();
});
// hide a spinner
fileupload.on('fileuploadstop fileuploadfail', function() {
$('#upload').removeClass('icon-loading');
$('#upload .icon-upload').show();
});
}
}
$.assocArraySize = function(obj) {
// http://stackoverflow.com/a/6700/11236
var size = 0, key;
for (key in obj) {
if (obj.hasOwnProperty(key)) {
size++;
}
}
return size;
};
// warn user not to leave the page while upload is in progress
$(window).on('beforeunload', function(e) {
if (OC.Upload.isProcessing()) {
return t('files', 'File upload is in progress. Leaving the page now will cancel the upload.');
}
});
//add multiply file upload attribute to all browsers except konqueror (which crashes when it's used)
if (navigator.userAgent.search(/konqueror/i) === -1) {
$('#file_upload_start').attr('multiple', 'multiple');
}
$(document).click(function(ev) {
// do not close when clicking in the dropdown
if ($(ev.target).closest('#new').length){
return;
}
$('#new>ul').hide();
$('#new').removeClass('active');
if ($('#new .error').length > 0) {
$('#new .error').tipsy('hide');
}
$('#new li').each(function(i,element) {
if ($(element).children('p').length === 0) {
$(element).children('form').remove();
$(element).append('