94a352e7f5
Note EcmaScript 2017 looks recent amd also is, e.g. we loose suport for IE and we loose support for some Android browsers, also Android <5 built-in browser.
4597 lines
140 KiB
JavaScript
4597 lines
140 KiB
JavaScript
/**
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* PrivateBin
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*
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* a zero-knowledge paste bin
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*
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* @see {@link https://github.com/PrivateBin/PrivateBin}
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* @copyright 2012 Sébastien SAUVAGE ({@link http://sebsauvage.net})
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* @license {@link https://www.opensource.org/licenses/zlib-license.php The zlib/libpng License}
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* @version 1.2.1
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* @name PrivateBin
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* @namespace
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*/
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/** global: Base64 */
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/** global: DOMPurify */
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/** global: FileReader */
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/** global: RawDeflate */
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/** global: history */
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/** global: navigator */
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/** global: prettyPrint */
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/** global: prettyPrintOne */
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/** global: showdown */
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/** global: sjcl */
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/** global: kjua */
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// main application start, called when DOM is fully loaded
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jQuery(document).ready(function() {
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'use strict';
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// run main controller
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$.PrivateBin.Controller.init();
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});
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jQuery.PrivateBin = (function($, sjcl, RawDeflate) {
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'use strict';
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/**
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* static Helper methods
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*
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* @name Helper
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* @class
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*/
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var Helper = (function () {
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var me = {};
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/**
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* blacklist of UserAgents (parts) known to belong to a bot
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*
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* @private
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* @enum {Object}
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* @readonly
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*/
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var BadBotUA = [
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'Bot',
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'bot'
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];
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/**
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* cache for script location
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*
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* @name Helper.baseUri
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* @private
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* @enum {string|null}
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*/
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var baseUri = null;
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/**
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* converts a duration (in seconds) into human friendly approximation
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*
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* @name Helper.secondsToHuman
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* @function
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* @param {number} seconds
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* @return {Array}
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*/
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me.secondsToHuman = function(seconds)
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{
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var v;
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if (seconds < 60)
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{
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v = Math.floor(seconds);
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return [v, 'second'];
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}
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if (seconds < 60 * 60)
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{
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v = Math.floor(seconds / 60);
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return [v, 'minute'];
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}
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if (seconds < 60 * 60 * 24)
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{
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v = Math.floor(seconds / (60 * 60));
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return [v, 'hour'];
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}
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// If less than 2 months, display in days:
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if (seconds < 60 * 60 * 24 * 60)
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{
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v = Math.floor(seconds / (60 * 60 * 24));
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return [v, 'day'];
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}
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v = Math.floor(seconds / (60 * 60 * 24 * 30));
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return [v, 'month'];
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};
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/**
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* text range selection
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*
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* @see {@link https://stackoverflow.com/questions/985272/jquery-selecting-text-in-an-element-akin-to-highlighting-with-your-mouse}
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* @name Helper.selectText
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* @function
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* @param {HTMLElement} element
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*/
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me.selectText = function(element)
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{
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var range, selection;
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// MS
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if (document.body.createTextRange) {
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range = document.body.createTextRange();
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range.moveToElementText(element);
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range.select();
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} else if (window.getSelection) {
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selection = window.getSelection();
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range = document.createRange();
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range.selectNodeContents(element);
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selection.removeAllRanges();
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selection.addRange(range);
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}
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};
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/**
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* convert URLs to clickable links.
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* URLs to handle:
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* <pre>
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* magnet:?xt.1=urn:sha1:YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5C&xt.2=urn:sha1:TXGCZQTH26NL6OUQAJJPFALHG2LTGBC7
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* https://example.com:8800/zero/?6f09182b8ea51997#WtLEUO5Epj9UHAV9JFs+6pUQZp13TuspAUjnF+iM+dM=
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* http://user:example.com@localhost:8800/zero/?6f09182b8ea51997#WtLEUO5Epj9UHAV9JFs+6pUQZp13TuspAUjnF+iM+dM=
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* </pre>
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*
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* @name Helper.urls2links
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* @function
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* @param {string} html
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* @return {string}
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*/
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me.urls2links = function(html)
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{
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return html.replace(
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/(((https?|ftp):\/\/[\w?!=&.\/-;#@~%+*-]+(?![\w\s?!&.\/;#~%"=-]*>))|((magnet):[\w?=&.\/-;#@~%+*-]+))/ig,
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'<a href="$1" rel="nofollow">$1</a>'
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);
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};
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/**
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* minimal sprintf emulation for %s and %d formats
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*
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* Note that this function needs the parameters in the same order as the
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* format strings appear in the string, contrary to the original.
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*
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* @see {@link https://stackoverflow.com/questions/610406/javascript-equivalent-to-printf-string-format#4795914}
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* @name Helper.sprintf
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* @function
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* @param {string} format
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* @param {...*} args - one or multiple parameters injected into format string
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* @return {string}
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*/
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me.sprintf = function()
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{
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var args = Array.prototype.slice.call(arguments);
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var format = args[0],
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i = 1;
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return format.replace(/%(s|d)/g, function (m) {
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// m is the matched format, e.g. %s, %d
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var val = args[i];
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// A switch statement so that the formatter can be extended.
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switch (m)
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{
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case '%d':
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val = parseFloat(val);
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if (isNaN(val)) {
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val = 0;
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}
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break;
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default:
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// Default is %s
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}
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++i;
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return val;
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});
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};
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/**
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* get value of cookie, if it was set, empty string otherwise
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*
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* @see {@link http://www.w3schools.com/js/js_cookies.asp}
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* @name Helper.getCookie
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* @function
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* @param {string} cname - may not be empty
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* @return {string}
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*/
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me.getCookie = function(cname) {
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var name = cname + '=',
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ca = document.cookie.split(';');
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for (var i = 0; i < ca.length; ++i) {
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var c = ca[i];
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while (c.charAt(0) === ' ')
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{
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c = c.substring(1);
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}
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if (c.indexOf(name) === 0)
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{
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return c.substring(name.length, c.length);
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}
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}
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return '';
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};
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/**
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* get the current location (without search or hash part of the URL),
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* eg. https://example.com/path/?aaaa#bbbb --> https://example.com/path/
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*
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* @name Helper.baseUri
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* @function
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* @return {string}
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*/
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me.baseUri = function()
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{
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// check for cached version
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if (baseUri !== null) {
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return baseUri;
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}
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baseUri = window.location.origin + window.location.pathname;
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return baseUri;
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};
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/**
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* resets state, used for unit testing
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*
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* @name Helper.reset
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* @function
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*/
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me.reset = function()
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{
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baseUri = null;
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};
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/**
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* checks whether this is a bot we dislike
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*
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* @name Helper.isBadBot
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* @function
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* @return {bool}
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*/
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me.isBadBot = function() {
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// check whether a bot user agent part can be found in the current
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// user agent
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var arrayLength = BadBotUA.length;
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for (var i = 0; i < arrayLength; ++i) {
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if (navigator.userAgent.indexOf(BadBotUA) >= 0) {
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return true;
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}
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}
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return false;
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}
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return me;
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})();
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/**
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* internationalization module
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*
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* @name I18n
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* @class
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*/
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var I18n = (function () {
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var me = {};
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/**
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* const for string of loaded language
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*
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* @name I18n.languageLoadedEvent
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* @private
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* @prop {string}
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* @readonly
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*/
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var languageLoadedEvent = 'languageLoaded';
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/**
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* supported languages, minus the built in 'en'
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*
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* @name I18n.supportedLanguages
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* @private
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* @prop {string[]}
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* @readonly
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*/
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var supportedLanguages = ['de', 'es', 'fr', 'it', 'hu', 'no', 'nl', 'pl', 'pt', 'oc', 'ru', 'sl', 'zh'];
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/**
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* built in language
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*
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* @name I18n.language
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* @private
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* @prop {string|null}
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*/
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var language = null;
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/**
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* translation cache
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*
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* @name I18n.translations
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* @private
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* @enum {Object}
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*/
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var translations = {};
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/**
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* translate a string, alias for I18n.translate
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*
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* @name I18n._
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* @function
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* @param {jQuery} $element - optional
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* @param {string} messageId
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* @param {...*} args - one or multiple parameters injected into placeholders
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* @return {string}
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*/
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me._ = function()
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{
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return me.translate.apply(this, arguments);
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};
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/**
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* translate a string
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*
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* Optionally pass a jQuery element as the first parameter, to automatically
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* let the text of this element be replaced. In case the (asynchronously
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* loaded) language is not downloadet yet, this will make sure the string
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* is replaced when it is actually loaded.
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* So for easy translations passing the jQuery object to apply it to is
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* more save, especially when they are loaded in the beginning.
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*
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* @name I18n.translate
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* @function
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* @param {jQuery} $element - optional
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* @param {string} messageId
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* @param {...*} args - one or multiple parameters injected into placeholders
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* @return {string}
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*/
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me.translate = function()
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{
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// convert parameters to array
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var args = Array.prototype.slice.call(arguments),
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messageId,
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$element = null;
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// parse arguments
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if (args[0] instanceof jQuery) {
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// optional jQuery element as first parameter
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$element = args[0];
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args.shift();
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}
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// extract messageId from arguments
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var usesPlurals = $.isArray(args[0]);
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if (usesPlurals) {
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// use the first plural form as messageId, otherwise the singular
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messageId = args[0].length > 1 ? args[0][1] : args[0][0];
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} else {
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messageId = args[0];
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}
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if (messageId.length === 0) {
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return messageId;
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}
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// if no translation string cannot be found (in translations object)
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if (!translations.hasOwnProperty(messageId) || language === null) {
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// if language is still loading and we have an elemt assigned
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if (language === null && $element !== null) {
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// handle the error by attaching the language loaded event
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var orgArguments = arguments;
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$(document).on(languageLoadedEvent, function () {
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// log to show that the previous error could be mitigated
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console.warn('Fix missing translation of \'' + messageId + '\' with now loaded language ' + language);
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// re-execute this function
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me.translate.apply(this, orgArguments);
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});
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// and fall back to English for now until the real language
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// file is loaded
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}
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// for all other languages than English for which this behaviour
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// is expected as it is built-in, log error
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if (language !== null && language !== 'en') {
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console.error('Missing translation for: \'' + messageId + '\' in language ' + language);
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// fallback to English
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}
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// save English translation (should be the same on both sides)
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translations[messageId] = args[0];
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}
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// lookup plural translation
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if (usesPlurals && $.isArray(translations[messageId])) {
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var n = parseInt(args[1] || 1, 10),
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key = me.getPluralForm(n),
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maxKey = translations[messageId].length - 1;
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if (key > maxKey) {
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key = maxKey;
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}
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args[0] = translations[messageId][key];
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args[1] = n;
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} else {
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// lookup singular translation
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args[0] = translations[messageId];
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}
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// format string
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var output = Helper.sprintf.apply(this, args);
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// if $element is given, apply text to element
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if ($element !== null) {
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// get last text node of element
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var content = $element.contents();
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if (content.length > 1) {
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content[content.length - 1].nodeValue = ' ' + output;
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} else {
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$element.text(output);
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}
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}
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return output;
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};
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/**
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* per language functions to use to determine the plural form
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*
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* @see {@link http://localization-guide.readthedocs.org/en/latest/l10n/pluralforms.html}
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* @name I18n.getPluralForm
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* @function
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* @param {int} n
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* @return {int} array key
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*/
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me.getPluralForm = function(n) {
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switch (language)
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{
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case 'fr':
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case 'oc':
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case 'zh':
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return n > 1 ? 1 : 0;
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case 'pl':
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return n === 1 ? 0 : (n % 10 >= 2 && n %10 <=4 && (n % 100 < 10 || n % 100 >= 20) ? 1 : 2);
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case 'ru':
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return n % 10 === 1 && n % 100 !== 11 ? 0 : (n % 10 >= 2 && n % 10 <= 4 && (n % 100 < 10 || n % 100 >= 20) ? 1 : 2);
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case 'sl':
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return n % 100 === 1 ? 1 : (n % 100 === 2 ? 2 : (n % 100 === 3 || n % 100 === 4 ? 3 : 0));
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// de, en, es, hu, it, nl, no, pt
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default:
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return n !== 1 ? 1 : 0;
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}
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};
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/**
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* load translations into cache
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*
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* @name I18n.loadTranslations
|
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* @function
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*/
|
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me.loadTranslations = function()
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{
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var newLanguage = Helper.getCookie('lang');
|
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// auto-select language based on browser settings
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if (newLanguage.length === 0) {
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newLanguage = (navigator.language || navigator.userLanguage || 'en').substring(0, 2);
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}
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// if language is already used skip update
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if (newLanguage === language) {
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return;
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}
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// if language is built-in (English) skip update
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if (newLanguage === 'en') {
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language = 'en';
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return;
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}
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|
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// if language is not supported, show error
|
|
if (supportedLanguages.indexOf(newLanguage) === -1) {
|
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console.error('Language \'%s\' is not supported. Translation failed, fallback to English.', newLanguage);
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language = 'en';
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return;
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}
|
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|
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// load strings from JSON
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$.getJSON('i18n/' + newLanguage + '.json', function(data) {
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language = newLanguage;
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translations = data;
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$(document).triggerHandler(languageLoadedEvent);
|
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}).fail(function (data, textStatus, errorMsg) {
|
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console.error('Language \'%s\' could not be loaded (%s: %s). Translation failed, fallback to English.', newLanguage, textStatus, errorMsg);
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language = 'en';
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});
|
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};
|
|
|
|
/**
|
|
* resets state, used for unit testing
|
|
*
|
|
* @name I18n.reset
|
|
* @function
|
|
*/
|
|
me.reset = function(mockLanguage, mockTranslations)
|
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{
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language = mockLanguage || null;
|
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translations = mockTranslations || {};
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};
|
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|
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return me;
|
|
})();
|
|
|
|
/**
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|
* handles everything related to en/decryption
|
|
*
|
|
* @name CryptTool
|
|
* @class
|
|
*/
|
|
var CryptTool = (function () {
|
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var me = {};
|
|
|
|
/**
|
|
* convert UTF-8 string stored in a DOMString to a standard UTF-16 DOMString
|
|
*
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* Iterates over the bytes of the message, converting them all hexadecimal
|
|
* percent encoded representations, then URI decodes them all
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*
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* @name CryptTool.btou
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* @function
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* @private
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* @param {string} message UTF-8 string
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* @return {string} UTF-16 string
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*/
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function btou(message)
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{
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return decodeURIComponent(
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message.split('').map(
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function(character)
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{
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return '%' + ('00' + character.charCodeAt(0).toString(16)).slice(-2);
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}
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).join('')
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);
|
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}
|
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|
|
/**
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|
* convert DOMString (UTF-16) to a UTF-8 string stored in a DOMString
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|
*
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* URI encodes the message, then finds the percent encoded characters
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* and transforms these hexadecimal representation back into bytes
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*
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* @name CryptTool.utob
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* @function
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* @private
|
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* @param {string} message UTF-16 string
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* @return {string} UTF-8 string
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*/
|
|
function utob(message)
|
|
{
|
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return encodeURIComponent(message).replace(
|
|
/%([0-9A-F]{2})/g,
|
|
function (match, hexCharacter)
|
|
{
|
|
return String.fromCharCode('0x' + hexCharacter);
|
|
}
|
|
);
|
|
}
|
|
|
|
/**
|
|
* convert ArrayBuffer into a UTF-8 string
|
|
*
|
|
* Iterates over the bytes of the array, catenating them into a string
|
|
*
|
|
* @name CryptTool.ArrToStr
|
|
* @function
|
|
* @private
|
|
* @param {ArrayBuffer} messageArray
|
|
* @return {string} message
|
|
*/
|
|
function ArrToStr(messageArray)
|
|
{
|
|
var array = new Uint8Array(messageArray),
|
|
len = array.length,
|
|
message = '',
|
|
i = 0;
|
|
while(i < len) {
|
|
var c = array[i++];
|
|
message += String.fromCharCode(c);
|
|
}
|
|
return message;
|
|
}
|
|
|
|
/**
|
|
* convert UTF-8 string into a Uint8Array
|
|
*
|
|
* Iterates over the bytes of the message, writing them to the array
|
|
*
|
|
* @name CryptTool.StrToArr
|
|
* @function
|
|
* @private
|
|
* @param {string} message UTF-8 string
|
|
* @return {Uint8Array} array
|
|
*/
|
|
function StrToArr(message)
|
|
{
|
|
var messageUtf8 = message,
|
|
messageLen = messageUtf8.length,
|
|
messageArray = new Uint8Array(messageLen);
|
|
for (var i = 0; i < messageLen; ++i) {
|
|
messageArray[i] = messageUtf8.charCodeAt(i);
|
|
}
|
|
return messageArray;
|
|
}
|
|
|
|
/**
|
|
* compress a string, returns base64 encoded data (deflate compression)
|
|
*
|
|
* @name CryptTool.compress
|
|
* @function
|
|
* @private
|
|
* @param {string} message
|
|
* @return {string} base64 data
|
|
*/
|
|
function compress(message)
|
|
{
|
|
// detect presence of Base64.js, indicating legacy ZeroBin paste
|
|
if (typeof Base64 === 'undefined') {
|
|
return btoa( utob( RawDeflate.deflate( utob( message ) ) ) );
|
|
} else {
|
|
return Base64.toBase64( RawDeflate.deflate( Base64.utob( message ) ) );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* decompress a base64 encoded data (deflate compression), returns string
|
|
*
|
|
* @name CryptTool.decompress
|
|
* @function
|
|
* @private
|
|
* @param {string} data base64 data
|
|
* @return {string} message
|
|
*/
|
|
function decompress(data)
|
|
{
|
|
// detect presence of Base64.js, indicating legacy ZeroBin paste
|
|
if (typeof Base64 === 'undefined') {
|
|
return btou( RawDeflate.inflate( btou( atob( data ) ) ) );
|
|
} else {
|
|
return Base64.btou( RawDeflate.inflate( Base64.fromBase64( data ) ) );
|
|
}
|
|
}
|
|
|
|
/**
|
|
* returns specified number of random bytes
|
|
*
|
|
* @name CryptTool.getRandomBytes
|
|
* @function
|
|
* @private
|
|
* @param {int} length number of random bytes to fetch
|
|
* @throws {string}
|
|
* @return {string} random bytes
|
|
*/
|
|
function getRandomBytes(length)
|
|
{
|
|
if (
|
|
typeof window !== 'undefined' &&
|
|
typeof Uint8Array !== 'undefined' &&
|
|
String.fromCodePoint &&
|
|
(
|
|
typeof window.crypto !== 'undefined' ||
|
|
typeof window.msCrypto !== 'undefined'
|
|
)
|
|
) {
|
|
// modern browser environment
|
|
var bytes = '',
|
|
byteArray = new Uint8Array(length),
|
|
crypto = window.crypto || window.msCrypto;
|
|
crypto.getRandomValues(byteArray);
|
|
for (var i = 0; i < length; ++i) {
|
|
bytes += String.fromCharCode(byteArray[i]);
|
|
}
|
|
return bytes;
|
|
} else {
|
|
// legacy browser or unsupported environment
|
|
throw 'No supported crypto API detected, you may read pastes and comments, but can\'t create pastes or add new comments.';
|
|
}
|
|
}
|
|
|
|
/**
|
|
* compress, then encrypt message with given key and password
|
|
*
|
|
* @name CryptTool.cipher
|
|
* @function
|
|
* @param {string} key
|
|
* @param {string} password
|
|
* @param {string} message
|
|
* @return {string} data - JSON with encrypted data
|
|
*/
|
|
me.cipher = async function(key, password, message)
|
|
{
|
|
// AES in Galois Counter Mode, keysize 256 bit, authentication tag 128 bit, 10000 iterations in key derivation
|
|
var iv = getRandomBytes(16),
|
|
salt = getRandomBytes(8),
|
|
object = {
|
|
iv: btoa(iv),
|
|
v: 1,
|
|
iter: 10000,
|
|
ks: 256,
|
|
ts: 128,
|
|
mode: 'gcm',
|
|
adata: '', // if used, base64 encode it with btoa()
|
|
cipher: 'aes',
|
|
salt: btoa(salt)
|
|
},
|
|
algo = 'AES-' + object.mode.toUpperCase();
|
|
|
|
if ((password || '').trim().length > 0) {
|
|
key += sjcl.codec.hex.fromBits(sjcl.hash.sha256.hash(password));
|
|
}
|
|
|
|
// import raw key
|
|
var importedKey = await window.crypto.subtle.importKey(
|
|
'raw', // only 'raw' is allowed
|
|
StrToArr(key),
|
|
{name: 'PBKDF2'}, // we use PBKDF2 for key derivation
|
|
false, // the key may not be exported
|
|
['deriveKey'] // we may only use it for key derivation
|
|
)
|
|
|
|
// derive a stronger key for use with AES
|
|
var derivedKey = await window.crypto.subtle.deriveKey(
|
|
{
|
|
name: 'PBKDF2', // we use PBKDF2 for key derivation
|
|
salt: StrToArr(atob(object.salt)), // salt used in HMAC
|
|
iterations: object.iter, // amount of iterations to apply
|
|
hash: {name: 'SHA-256'} // can be "SHA-1", "SHA-256", "SHA-384" or "SHA-512"
|
|
},
|
|
importedKey,
|
|
{
|
|
// can be any supported AES algorithm ("AES-CTR", "AES-CBC", "AES-CMAC", "AES-GCM", "AES-CFB", "AES-KW", "ECDH", "DH" or "HMAC")
|
|
name: algo,
|
|
length: object.ks // can be 128, 192 or 256
|
|
},
|
|
false, // the key may not be exported
|
|
['encrypt'] // we may only use it for decryption
|
|
)
|
|
|
|
// finally, encrypt message
|
|
var encrypted = await window.crypto.subtle.encrypt(
|
|
{
|
|
// can be any supported AES algorithm ("AES-CTR", "AES-CBC", "AES-CMAC", "AES-GCM", "AES-CFB", "AES-KW", "ECDH", "DH" or "HMAC")
|
|
name: algo,
|
|
iv: StrToArr(atob(object.iv)), // the initialization vector you used to encrypt
|
|
additionalData: StrToArr(atob(object.adata)), // the addtional data you used during encryption (if any)
|
|
tagLength: object.ts // the length of the tag you used to encrypt (if any)
|
|
},
|
|
derivedKey,
|
|
StrToArr(compress(message)) // compressed plain text to encrypt
|
|
)
|
|
object.ct = btoa(ArrToStr(encrypted));
|
|
return JSON.stringify(object);
|
|
};
|
|
|
|
/**
|
|
* decrypt message with key, then decompress
|
|
*
|
|
* @name CryptTool.decipher
|
|
* @function
|
|
* @param {string} key
|
|
* @param {string} password
|
|
* @param {string} data - JSON with encrypted data
|
|
* @return {string} decrypted message, empty if decryption failed
|
|
*/
|
|
me.decipher = async function(key, password, data)
|
|
{
|
|
try {
|
|
if ((password || '').trim().length > 0) {
|
|
key += sjcl.codec.hex.fromBits(sjcl.hash.sha256.hash(password));
|
|
}
|
|
var object = JSON.parse(data),
|
|
algo = 'AES-' + object.mode.toUpperCase();
|
|
|
|
// import raw key
|
|
var importedKey = await window.crypto.subtle.importKey(
|
|
'raw', // only 'raw' is allowed
|
|
StrToArr(key),
|
|
{name: 'PBKDF2'}, // we use PBKDF2 for key derivation
|
|
false, // the key may not be exported
|
|
['deriveKey'] // we may only use it for key derivation
|
|
)
|
|
|
|
// derive a stronger key for use with AES
|
|
var derivedKey = await window.crypto.subtle.deriveKey(
|
|
{
|
|
name: 'PBKDF2', // we use PBKDF2 for key derivation
|
|
salt: StrToArr(atob(object.salt)), // salt used in HMAC
|
|
iterations: object.iter, // amount of iterations to apply
|
|
hash: {name: 'SHA-256'} // can be "SHA-1", "SHA-256", "SHA-384" or "SHA-512"
|
|
},
|
|
importedKey,
|
|
{
|
|
// can be any supported AES algorithm ("AES-CTR", "AES-CBC", "AES-CMAC", "AES-GCM", "AES-CFB", "AES-KW", "ECDH", "DH" or "HMAC")
|
|
name: algo,
|
|
length: object.ks // can be 128, 192 or 256
|
|
},
|
|
false, // the key may not be exported
|
|
['decrypt'] // we may only use it for decryption
|
|
)
|
|
|
|
// finally, decrypt message
|
|
var decrypted = await window.crypto.subtle.decrypt(
|
|
{
|
|
// can be any supported AES algorithm ("AES-CTR", "AES-CBC", "AES-CMAC", "AES-GCM", "AES-CFB", "AES-KW", "ECDH", "DH" or "HMAC")
|
|
name: algo,
|
|
iv: StrToArr(atob(object.iv)), // the initialization vector you used to encrypt
|
|
additionalData: StrToArr(atob(object.adata)), // the addtional data you used during encryption (if any)
|
|
tagLength: object.ts // the length of the tag you used to encrypt (if any)
|
|
},
|
|
derivedKey,
|
|
StrToArr(atob(object.ct)) // cipher text to decrypt
|
|
)
|
|
return decompress(ArrToStr(decrypted));
|
|
} catch(err) {
|
|
return '';
|
|
}
|
|
};
|
|
|
|
/**
|
|
* returns a random symmetric key
|
|
*
|
|
* generates 256 bit long keys (8 Bits * 32) for AES with 256 bit long blocks
|
|
*
|
|
* @name CryptTool.getSymmetricKey
|
|
* @function
|
|
* @throws {string}
|
|
* @return {string} base64 encoded key
|
|
*/
|
|
me.getSymmetricKey = function()
|
|
{
|
|
return btoa(getRandomBytes(32));
|
|
};
|
|
|
|
return me;
|
|
})();
|
|
|
|
/**
|
|
* (Model) Data source (aka MVC)
|
|
*
|
|
* @name Model
|
|
* @class
|
|
*/
|
|
var Model = (function () {
|
|
var me = {};
|
|
|
|
var pasteData = null,
|
|
$templates;
|
|
|
|
var id = null, symmetricKey = null;
|
|
|
|
/**
|
|
* returns the expiration set in the HTML
|
|
*
|
|
* @name Model.getExpirationDefault
|
|
* @function
|
|
* @return string
|
|
*/
|
|
me.getExpirationDefault = function()
|
|
{
|
|
return $('#pasteExpiration').val();
|
|
};
|
|
|
|
/**
|
|
* returns the format set in the HTML
|
|
*
|
|
* @name Model.getFormatDefault
|
|
* @function
|
|
* @return string
|
|
*/
|
|
me.getFormatDefault = function()
|
|
{
|
|
return $('#pasteFormatter').val();
|
|
};
|
|
|
|
/**
|
|
* returns the paste data (including the cipher data)
|
|
*
|
|
* @name Model.getPasteData
|
|
* @function
|
|
* @param {function} callback (optional) Called when data is available
|
|
* @param {function} useCache (optional) Whether to use the cache or
|
|
* force a data reload. Default: true
|
|
* @return string
|
|
*/
|
|
me.getPasteData = function(callback, useCache)
|
|
{
|
|
// use cache if possible/allowed
|
|
if (useCache !== false && pasteData !== null) {
|
|
//execute callback
|
|
if (typeof callback === 'function') {
|
|
return callback(pasteData);
|
|
}
|
|
|
|
// alternatively just using inline
|
|
return pasteData;
|
|
}
|
|
|
|
// reload data
|
|
Uploader.prepare();
|
|
Uploader.setUrl(Helper.baseUri() + '?' + me.getPasteId());
|
|
|
|
Uploader.setFailure(function (status, data) {
|
|
// revert loading status…
|
|
Alert.hideLoading();
|
|
TopNav.showViewButtons();
|
|
|
|
// show error message
|
|
Alert.showError(Uploader.parseUploadError(status, data, 'get paste data'));
|
|
});
|
|
Uploader.setSuccess(function (status, data) {
|
|
pasteData = data;
|
|
|
|
if (typeof callback === 'function') {
|
|
return callback(data);
|
|
}
|
|
});
|
|
Uploader.run();
|
|
};
|
|
|
|
/**
|
|
* get the pastes unique identifier from the URL,
|
|
* eg. https://example.com/path/?c05354954c49a487#dfdsdgdgdfgdf returns c05354954c49a487
|
|
*
|
|
* @name Model.getPasteId
|
|
* @function
|
|
* @return {string} unique identifier
|
|
* @throws {string}
|
|
*/
|
|
me.getPasteId = function()
|
|
{
|
|
if (id === null) {
|
|
// Attention: This also returns the delete token inside of the ID, if it is specified
|
|
id = window.location.search.substring(1);
|
|
|
|
if (id === '') {
|
|
throw 'no paste id given';
|
|
}
|
|
}
|
|
|
|
return id;
|
|
}
|
|
|
|
/**
|
|
* Returns true, when the URL has a delete token and the current call was used for deleting a paste.
|
|
*
|
|
* @name Model.hasDeleteToken
|
|
* @function
|
|
* @return {bool}
|
|
*/
|
|
me.hasDeleteToken = function()
|
|
{
|
|
return window.location.search.indexOf('deletetoken') !== -1;
|
|
}
|
|
|
|
/**
|
|
* return the deciphering key stored in anchor part of the URL
|
|
*
|
|
* @name Model.getPasteKey
|
|
* @function
|
|
* @return {string|null} key
|
|
* @throws {string}
|
|
*/
|
|
me.getPasteKey = function()
|
|
{
|
|
if (symmetricKey === null) {
|
|
symmetricKey = window.location.hash.substring(1);
|
|
|
|
if (symmetricKey === '') {
|
|
throw 'no encryption key given';
|
|
}
|
|
|
|
// Some web 2.0 services and redirectors add data AFTER the anchor
|
|
// (such as &utm_source=...). We will strip any additional data.
|
|
var ampersandPos = symmetricKey.indexOf('&');
|
|
if (ampersandPos > -1)
|
|
{
|
|
symmetricKey = symmetricKey.substring(0, ampersandPos);
|
|
}
|
|
}
|
|
|
|
return symmetricKey;
|
|
};
|
|
|
|
/**
|
|
* returns a jQuery copy of the HTML template
|
|
*
|
|
* @name Model.getTemplate
|
|
* @function
|
|
* @param {string} name - the name of the template
|
|
* @return {jQuery}
|
|
*/
|
|
me.getTemplate = function(name)
|
|
{
|
|
// find template
|
|
var $element = $templates.find('#' + name + 'template').clone(true);
|
|
// change ID to avoid collisions (one ID should really be unique)
|
|
return $element.prop('id', name);
|
|
};
|
|
|
|
/**
|
|
* resets state, used for unit testing
|
|
*
|
|
* @name Model.reset
|
|
* @function
|
|
*/
|
|
me.reset = function()
|
|
{
|
|
pasteData = $templates = id = symmetricKey = null;
|
|
};
|
|
|
|
/**
|
|
* init navigation manager
|
|
*
|
|
* preloads jQuery elements
|
|
*
|
|
* @name Model.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
$templates = $('#templates');
|
|
};
|
|
|
|
return me;
|
|
})();
|
|
|
|
/**
|
|
* Helper functions for user interface
|
|
*
|
|
* everything directly UI-related, which fits nowhere else
|
|
*
|
|
* @name UiHelper
|
|
* @class
|
|
*/
|
|
var UiHelper = (function () {
|
|
var me = {};
|
|
|
|
/**
|
|
* handle history (pop) state changes
|
|
*
|
|
* currently this does only handle redirects to the home page.
|
|
*
|
|
* @name UiHelper.historyChange
|
|
* @private
|
|
* @function
|
|
* @param {Event} event
|
|
*/
|
|
function historyChange(event)
|
|
{
|
|
var currentLocation = Helper.baseUri();
|
|
if (event.originalEvent.state === null && // no state object passed
|
|
event.target.location.href === currentLocation && // target location is home page
|
|
window.location.href === currentLocation // and we are not already on the home page
|
|
) {
|
|
// redirect to home page
|
|
window.location.href = currentLocation;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* reload the page
|
|
*
|
|
* This takes the user to the PrivateBin homepage.
|
|
*
|
|
* @name UiHelper.reloadHome
|
|
* @function
|
|
*/
|
|
me.reloadHome = function()
|
|
{
|
|
window.location.href = Helper.baseUri();
|
|
};
|
|
|
|
/**
|
|
* checks whether the element is currently visible in the viewport (so
|
|
* the user can actually see it)
|
|
*
|
|
* @see {@link https://stackoverflow.com/a/40658647}
|
|
* @name UiHelper.isVisible
|
|
* @function
|
|
* @param {jQuery} $element The link hash to move to.
|
|
*/
|
|
me.isVisible = function($element)
|
|
{
|
|
var elementTop = $element.offset().top;
|
|
var viewportTop = $(window).scrollTop();
|
|
var viewportBottom = viewportTop + $(window).height();
|
|
|
|
return elementTop > viewportTop && elementTop < viewportBottom;
|
|
};
|
|
|
|
/**
|
|
* scrolls to a specific element
|
|
*
|
|
* @see {@link https://stackoverflow.com/questions/4198041/jquery-smooth-scroll-to-an-anchor#answer-12714767}
|
|
* @name UiHelper.scrollTo
|
|
* @function
|
|
* @param {jQuery} $element The link hash to move to.
|
|
* @param {(number|string)} animationDuration passed to jQuery .animate, when set to 0 the animation is skipped
|
|
* @param {string} animationEffect passed to jQuery .animate
|
|
* @param {function} finishedCallback function to call after animation finished
|
|
*/
|
|
me.scrollTo = function($element, animationDuration, animationEffect, finishedCallback)
|
|
{
|
|
var $body = $('html, body'),
|
|
margin = 50,
|
|
callbackCalled = false;
|
|
|
|
//calculate destination place
|
|
var dest = 0;
|
|
// if it would scroll out of the screen at the bottom only scroll it as
|
|
// far as the screen can go
|
|
if ($element.offset().top > $(document).height() - $(window).height()) {
|
|
dest = $(document).height() - $(window).height();
|
|
} else {
|
|
dest = $element.offset().top - margin;
|
|
}
|
|
// skip animation if duration is set to 0
|
|
if (animationDuration === 0) {
|
|
window.scrollTo(0, dest);
|
|
} else {
|
|
// stop previous animation
|
|
$body.stop();
|
|
// scroll to destination
|
|
$body.animate({
|
|
scrollTop: dest
|
|
}, animationDuration, animationEffect);
|
|
}
|
|
|
|
// as we have finished we can enable scrolling again
|
|
$body.queue(function (next) {
|
|
if (!callbackCalled) {
|
|
// call user function if needed
|
|
if (typeof finishedCallback !== 'undefined') {
|
|
finishedCallback();
|
|
}
|
|
|
|
// prevent calling this function twice
|
|
callbackCalled = true;
|
|
}
|
|
next();
|
|
});
|
|
};
|
|
|
|
/**
|
|
* trigger a history (pop) state change
|
|
*
|
|
* used to test the UiHelper.historyChange private function
|
|
*
|
|
* @name UiHelper.mockHistoryChange
|
|
* @function
|
|
* @param {string} state (optional) state to mock
|
|
*/
|
|
me.mockHistoryChange = function(state)
|
|
{
|
|
if (typeof state === 'undefined') {
|
|
state = null;
|
|
}
|
|
historyChange($.Event('popstate', {originalEvent: new PopStateEvent('popstate', {state: state}), target: window}));
|
|
};
|
|
|
|
/**
|
|
* initialize
|
|
*
|
|
* @name UiHelper.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
// update link to home page
|
|
$('.reloadlink').prop('href', Helper.baseUri());
|
|
|
|
$(window).on('popstate', historyChange);
|
|
};
|
|
|
|
return me;
|
|
})();
|
|
|
|
/**
|
|
* Alert/error manager
|
|
*
|
|
* @name Alert
|
|
* @class
|
|
*/
|
|
var Alert = (function () {
|
|
var me = {};
|
|
|
|
var $errorMessage,
|
|
$loadingIndicator,
|
|
$statusMessage,
|
|
$remainingTime;
|
|
|
|
var currentIcon;
|
|
|
|
var alertType = [
|
|
'loading', // not in bootstrap, but using a good value here
|
|
'info', // status icon
|
|
'warning', // not used yet
|
|
'danger' // error icon
|
|
];
|
|
|
|
var customHandler;
|
|
|
|
/**
|
|
* forwards a request to the i18n module and shows the element
|
|
*
|
|
* @name Alert.handleNotification
|
|
* @private
|
|
* @function
|
|
* @param {int} id - id of notification
|
|
* @param {jQuery} $element - jQuery object
|
|
* @param {string|array} args
|
|
* @param {string|null} icon - optional, icon
|
|
*/
|
|
function handleNotification(id, $element, args, icon)
|
|
{
|
|
// basic parsing/conversion of parameters
|
|
if (typeof icon === 'undefined') {
|
|
icon = null;
|
|
}
|
|
if (typeof args === 'undefined') {
|
|
args = null;
|
|
} else if (typeof args === 'string') {
|
|
// convert string to array if needed
|
|
args = [args];
|
|
}
|
|
|
|
// pass to custom handler if defined
|
|
if (typeof customHandler === 'function') {
|
|
var handlerResult = customHandler(alertType[id], $element, args, icon);
|
|
if (handlerResult === true) {
|
|
// if it returns true, skip own handler
|
|
return;
|
|
}
|
|
if (handlerResult instanceof jQuery) {
|
|
// continue processing with new element
|
|
$element = handlerResult;
|
|
icon = null; // icons not supported in this case
|
|
}
|
|
}
|
|
|
|
// handle icon
|
|
if (icon !== null && // icon was passed
|
|
icon !== currentIcon[id] // and it differs from current icon
|
|
) {
|
|
var $glyphIcon = $element.find(':first');
|
|
|
|
// remove (previous) icon
|
|
$glyphIcon.removeClass(currentIcon[id]);
|
|
|
|
// any other thing as a string (e.g. 'null') (only) removes the icon
|
|
if (typeof icon === 'string') {
|
|
// set new icon
|
|
currentIcon[id] = 'glyphicon-' + icon;
|
|
$glyphIcon.addClass(currentIcon[id]);
|
|
}
|
|
}
|
|
|
|
// show text
|
|
if (args !== null) {
|
|
// add jQuery object to it as first parameter
|
|
args.unshift($element);
|
|
// pass it to I18n
|
|
I18n._.apply(this, args);
|
|
}
|
|
|
|
// show notification
|
|
$element.removeClass('hidden');
|
|
}
|
|
|
|
/**
|
|
* display a status message
|
|
*
|
|
* This automatically passes the text to I18n for translation.
|
|
*
|
|
* @name Alert.showStatus
|
|
* @function
|
|
* @param {string|array} message string, use an array for %s/%d options
|
|
* @param {string|null} icon optional, the icon to show,
|
|
* default: leave previous icon
|
|
*/
|
|
me.showStatus = function(message, icon)
|
|
{
|
|
console.info('status shown: ', message);
|
|
handleNotification(1, $statusMessage, message, icon);
|
|
};
|
|
|
|
/**
|
|
* display an error message
|
|
*
|
|
* This automatically passes the text to I18n for translation.
|
|
*
|
|
* @name Alert.showError
|
|
* @function
|
|
* @param {string|array} message string, use an array for %s/%d options
|
|
* @param {string|null} icon optional, the icon to show, default:
|
|
* leave previous icon
|
|
*/
|
|
me.showError = function(message, icon)
|
|
{
|
|
console.error('error message shown: ', message);
|
|
handleNotification(3, $errorMessage, message, icon);
|
|
};
|
|
|
|
/**
|
|
* display remaining message
|
|
*
|
|
* This automatically passes the text to I18n for translation.
|
|
*
|
|
* @name Alert.showRemaining
|
|
* @function
|
|
* @param {string|array} message string, use an array for %s/%d options
|
|
*/
|
|
me.showRemaining = function(message)
|
|
{
|
|
console.info('remaining message shown: ', message);
|
|
handleNotification(1, $remainingTime, message);
|
|
};
|
|
|
|
/**
|
|
* shows a loading message, optionally with a percentage
|
|
*
|
|
* This automatically passes all texts to the i10s module.
|
|
*
|
|
* @name Alert.showLoading
|
|
* @function
|
|
* @param {string|array|null} message optional, use an array for %s/%d options, default: 'Loading…'
|
|
* @param {string|null} icon optional, the icon to show, default: leave previous icon
|
|
*/
|
|
me.showLoading = function(message, icon)
|
|
{
|
|
if (typeof message !== 'undefined' && message !== null) {
|
|
console.info('status changed: ', message);
|
|
}
|
|
|
|
// default message text
|
|
if (typeof message === 'undefined') {
|
|
message = 'Loading…';
|
|
}
|
|
|
|
handleNotification(0, $loadingIndicator, message, icon);
|
|
|
|
// show loading status (cursor)
|
|
$('body').addClass('loading');
|
|
};
|
|
|
|
/**
|
|
* hides the loading message
|
|
*
|
|
* @name Alert.hideLoading
|
|
* @function
|
|
*/
|
|
me.hideLoading = function()
|
|
{
|
|
$loadingIndicator.addClass('hidden');
|
|
|
|
// hide loading cursor
|
|
$('body').removeClass('loading');
|
|
};
|
|
|
|
/**
|
|
* hides any status/error messages
|
|
*
|
|
* This does not include the loading message.
|
|
*
|
|
* @name Alert.hideMessages
|
|
* @function
|
|
*/
|
|
me.hideMessages = function()
|
|
{
|
|
// also possible: $('.statusmessage').addClass('hidden');
|
|
$statusMessage.addClass('hidden');
|
|
$errorMessage.addClass('hidden');
|
|
};
|
|
|
|
/**
|
|
* set a custom handler, which gets all notifications.
|
|
*
|
|
* This handler gets the following arguments:
|
|
* alertType (see array), $element, args, icon
|
|
* If it returns true, the own processing will be stopped so the message
|
|
* will not be displayed. Otherwise it will continue.
|
|
* As an aditional feature it can return q jQuery element, which will
|
|
* then be used to add the message there. Icons are not supported in
|
|
* that case and will be ignored.
|
|
* Pass 'null' to reset/delete the custom handler.
|
|
* Note that there is no notification when a message is supposed to get
|
|
* hidden.
|
|
*
|
|
* @name Alert.setCustomHandler
|
|
* @function
|
|
* @param {function|null} newHandler
|
|
*/
|
|
me.setCustomHandler = function(newHandler)
|
|
{
|
|
customHandler = newHandler;
|
|
};
|
|
|
|
/**
|
|
* init status manager
|
|
*
|
|
* preloads jQuery elements
|
|
*
|
|
* @name Alert.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
// hide "no javascript" error message
|
|
$('#noscript').hide();
|
|
|
|
// not a reset, but first set of the elements
|
|
$errorMessage = $('#errormessage');
|
|
$loadingIndicator = $('#loadingindicator');
|
|
$statusMessage = $('#status');
|
|
$remainingTime = $('#remainingtime');
|
|
|
|
currentIcon = [
|
|
'glyphicon-time', // loading icon
|
|
'glyphicon-info-sign', // status icon
|
|
'', // reserved for warning, not used yet
|
|
'glyphicon-alert' // error icon
|
|
];
|
|
};
|
|
|
|
return me;
|
|
})();
|
|
|
|
/**
|
|
* handles paste status/result
|
|
*
|
|
* @name PasteStatus
|
|
* @class
|
|
*/
|
|
var PasteStatus = (function () {
|
|
var me = {};
|
|
|
|
var $pasteSuccess,
|
|
$pasteUrl,
|
|
$remainingTime,
|
|
$shortenButton;
|
|
|
|
/**
|
|
* forward to URL shortener
|
|
*
|
|
* @name PasteStatus.sendToShortener
|
|
* @private
|
|
* @function
|
|
*/
|
|
function sendToShortener()
|
|
{
|
|
window.location.href = $shortenButton.data('shortener') +
|
|
encodeURIComponent($pasteUrl.attr('href'));
|
|
}
|
|
|
|
/**
|
|
* Forces opening the paste if the link does not do this automatically.
|
|
*
|
|
* This is necessary as browsers will not reload the page when it is
|
|
* already loaded (which is fake as it is set via history.pushState()).
|
|
*
|
|
* @name PasteStatus.pasteLinkClick
|
|
* @function
|
|
*/
|
|
function pasteLinkClick()
|
|
{
|
|
// check if location is (already) shown in URL bar
|
|
if (window.location.href === $pasteUrl.attr('href')) {
|
|
// if so we need to load link by reloading the current site
|
|
window.location.reload(true);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* creates a notification after a successfull paste upload
|
|
*
|
|
* @name PasteStatus.createPasteNotification
|
|
* @function
|
|
* @param {string} url
|
|
* @param {string} deleteUrl
|
|
*/
|
|
me.createPasteNotification = function(url, deleteUrl)
|
|
{
|
|
$('#pastelink').html(
|
|
I18n._(
|
|
'Your paste is <a id="pasteurl" href="%s">%s</a> <span id="copyhint">(Hit [Ctrl]+[c] to copy)</span>',
|
|
url, url
|
|
)
|
|
);
|
|
// save newly created element
|
|
$pasteUrl = $('#pasteurl');
|
|
// and add click event
|
|
$pasteUrl.click(pasteLinkClick);
|
|
|
|
// shorten button
|
|
$('#deletelink').html('<a href="' + deleteUrl + '">' + I18n._('Delete data') + '</a>');
|
|
|
|
// show result
|
|
$pasteSuccess.removeClass('hidden');
|
|
// we pre-select the link so that the user only has to [Ctrl]+[c] the link
|
|
Helper.selectText($pasteUrl[0]);
|
|
};
|
|
|
|
/**
|
|
* shows the remaining time
|
|
*
|
|
* @name PasteStatus.showRemainingTime
|
|
* @function
|
|
* @param {object} pasteMetaData
|
|
*/
|
|
me.showRemainingTime = function(pasteMetaData)
|
|
{
|
|
if (pasteMetaData.burnafterreading) {
|
|
// display paste "for your eyes only" if it is deleted
|
|
|
|
// the paste has been deleted when the JSON with the ciphertext
|
|
// has been downloaded
|
|
|
|
Alert.showRemaining('FOR YOUR EYES ONLY. Don\'t close this window, this message can\'t be displayed again.');
|
|
$remainingTime.addClass('foryoureyesonly');
|
|
|
|
// discourage cloning (it cannot really be prevented)
|
|
TopNav.hideCloneButton();
|
|
|
|
} else if (pasteMetaData.expire_date) {
|
|
// display paste expiration
|
|
var expiration = Helper.secondsToHuman(pasteMetaData.remaining_time),
|
|
expirationLabel = [
|
|
'This document will expire in %d ' + expiration[1] + '.',
|
|
'This document will expire in %d ' + expiration[1] + 's.'
|
|
];
|
|
|
|
Alert.showRemaining([expirationLabel, expiration[0]]);
|
|
$remainingTime.removeClass('foryoureyesonly');
|
|
} else {
|
|
// never expires
|
|
return;
|
|
}
|
|
|
|
// in the end, display notification
|
|
$remainingTime.removeClass('hidden');
|
|
};
|
|
|
|
/**
|
|
* hides the remaining time and successful upload notification
|
|
*
|
|
* @name PasteStatus.hideMessages
|
|
* @function
|
|
*/
|
|
me.hideMessages = function()
|
|
{
|
|
$remainingTime.addClass('hidden');
|
|
$pasteSuccess.addClass('hidden');
|
|
};
|
|
|
|
/**
|
|
* init status manager
|
|
*
|
|
* preloads jQuery elements
|
|
*
|
|
* @name PasteStatus.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
$pasteSuccess = $('#pastesuccess');
|
|
// $pasteUrl is saved in me.createPasteNotification() after creation
|
|
$remainingTime = $('#remainingtime');
|
|
$shortenButton = $('#shortenbutton');
|
|
|
|
// bind elements
|
|
$shortenButton.click(sendToShortener);
|
|
};
|
|
|
|
return me;
|
|
})();
|
|
|
|
/**
|
|
* password prompt
|
|
*
|
|
* @name Prompt
|
|
* @class
|
|
*/
|
|
var Prompt = (function () {
|
|
var me = {};
|
|
|
|
var $passwordDecrypt,
|
|
$passwordForm,
|
|
$passwordModal;
|
|
|
|
var password = '';
|
|
|
|
/**
|
|
* submit a password in the modal dialog
|
|
*
|
|
* @name Prompt.submitPasswordModal
|
|
* @private
|
|
* @function
|
|
* @param {Event} event
|
|
*/
|
|
function submitPasswordModal(event)
|
|
{
|
|
event.preventDefault();
|
|
|
|
// get input
|
|
password = $passwordDecrypt.val();
|
|
|
|
// hide modal
|
|
$passwordModal.modal('hide');
|
|
|
|
PasteDecrypter.run();
|
|
}
|
|
|
|
/**
|
|
* ask the user for the password and set it
|
|
*
|
|
* @name Prompt.requestPassword
|
|
* @function
|
|
*/
|
|
me.requestPassword = function()
|
|
{
|
|
// show new bootstrap method (if available)
|
|
if ($passwordModal.length !== 0) {
|
|
$passwordModal.modal({
|
|
backdrop: 'static',
|
|
keyboard: false
|
|
});
|
|
return;
|
|
}
|
|
|
|
// fallback to old method for page template
|
|
password = prompt(I18n._('Please enter the password for this paste:'), '');
|
|
if (password === null) {
|
|
throw 'password prompt canceled';
|
|
}
|
|
if (password.length === 0) {
|
|
// recurse…
|
|
return me.requestPassword();
|
|
}
|
|
PasteDecrypter.run();
|
|
};
|
|
|
|
/**
|
|
* get the cached password
|
|
*
|
|
* If you do not get a password with this function
|
|
* (returns an empty string), use requestPassword.
|
|
*
|
|
* @name Prompt.getPassword
|
|
* @function
|
|
* @return {string}
|
|
*/
|
|
me.getPassword = function()
|
|
{
|
|
return password;
|
|
};
|
|
|
|
/**
|
|
* resets the password to an empty string
|
|
*
|
|
* @name Prompt.reset
|
|
* @function
|
|
*/
|
|
me.reset = function()
|
|
{
|
|
// reset internal
|
|
password = '';
|
|
|
|
// and also reset UI
|
|
$passwordDecrypt.val('');
|
|
}
|
|
|
|
/**
|
|
* init status manager
|
|
*
|
|
* preloads jQuery elements
|
|
*
|
|
* @name Prompt.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
$passwordDecrypt = $('#passworddecrypt');
|
|
$passwordForm = $('#passwordform');
|
|
$passwordModal = $('#passwordmodal');
|
|
|
|
// bind events
|
|
|
|
// focus password input when it is shown
|
|
$passwordModal.on('shown.bs.Model', function () {
|
|
$passwordDecrypt.focus();
|
|
});
|
|
// handle Model password submission
|
|
$passwordForm.submit(submitPasswordModal);
|
|
};
|
|
|
|
return me;
|
|
})();
|
|
|
|
/**
|
|
* Manage paste/message input, and preview tab
|
|
*
|
|
* Note that the actual preview is handled by PasteViewer.
|
|
*
|
|
* @name Editor
|
|
* @class
|
|
*/
|
|
var Editor = (function () {
|
|
var me = {};
|
|
|
|
var $editorTabs,
|
|
$messageEdit,
|
|
$messagePreview,
|
|
$message;
|
|
|
|
var isPreview = false;
|
|
|
|
/**
|
|
* support input of tab character
|
|
*
|
|
* @name Editor.supportTabs
|
|
* @function
|
|
* @param {Event} event
|
|
* @this $message (but not used, so it is jQuery-free, possibly faster)
|
|
*/
|
|
function supportTabs(event)
|
|
{
|
|
var keyCode = event.keyCode || event.which;
|
|
// tab was pressed
|
|
if (keyCode === 9) {
|
|
// get caret position & selection
|
|
var val = this.value,
|
|
start = this.selectionStart,
|
|
end = this.selectionEnd;
|
|
// set textarea value to: text before caret + tab + text after caret
|
|
this.value = val.substring(0, start) + '\t' + val.substring(end);
|
|
// put caret at right position again
|
|
this.selectionStart = this.selectionEnd = start + 1;
|
|
// prevent the textarea to lose focus
|
|
event.preventDefault();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* view the Editor tab
|
|
*
|
|
* @name Editor.viewEditor
|
|
* @function
|
|
* @param {Event} event - optional
|
|
*/
|
|
function viewEditor(event)
|
|
{
|
|
// toggle buttons
|
|
$messageEdit.addClass('active');
|
|
$messagePreview.removeClass('active');
|
|
|
|
PasteViewer.hide();
|
|
|
|
// reshow input
|
|
$message.removeClass('hidden');
|
|
|
|
me.focusInput();
|
|
|
|
// finish
|
|
isPreview = false;
|
|
|
|
// prevent jumping of page to top
|
|
if (typeof event !== 'undefined') {
|
|
event.preventDefault();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* view the preview tab
|
|
*
|
|
* @name Editor.viewPreview
|
|
* @function
|
|
* @param {Event} event
|
|
*/
|
|
function viewPreview(event)
|
|
{
|
|
// toggle buttons
|
|
$messageEdit.removeClass('active');
|
|
$messagePreview.addClass('active');
|
|
|
|
// hide input as now preview is shown
|
|
$message.addClass('hidden');
|
|
|
|
// show preview
|
|
PasteViewer.setText($message.val());
|
|
if (AttachmentViewer.hasAttachmentData()) {
|
|
var attachmentData = AttachmentViewer.getAttachmentData() || AttachmentViewer.getAttachmentLink().attr('href');
|
|
AttachmentViewer.handleAttachmentPreview(AttachmentViewer.getAttachmentPreview(), attachmentData);
|
|
}
|
|
PasteViewer.run();
|
|
|
|
// finish
|
|
isPreview = true;
|
|
|
|
// prevent jumping of page to top
|
|
if (typeof event !== 'undefined') {
|
|
event.preventDefault();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* get the state of the preview
|
|
*
|
|
* @name Editor.isPreview
|
|
* @function
|
|
*/
|
|
me.isPreview = function()
|
|
{
|
|
return isPreview;
|
|
};
|
|
|
|
/**
|
|
* reset the Editor view
|
|
*
|
|
* @name Editor.resetInput
|
|
* @function
|
|
*/
|
|
me.resetInput = function()
|
|
{
|
|
// go back to input
|
|
if (isPreview) {
|
|
viewEditor();
|
|
}
|
|
|
|
// clear content
|
|
$message.val('');
|
|
};
|
|
|
|
/**
|
|
* shows the Editor
|
|
*
|
|
* @name Editor.show
|
|
* @function
|
|
*/
|
|
me.show = function()
|
|
{
|
|
$message.removeClass('hidden');
|
|
$editorTabs.removeClass('hidden');
|
|
};
|
|
|
|
/**
|
|
* hides the Editor
|
|
*
|
|
* @name Editor.reset
|
|
* @function
|
|
*/
|
|
me.hide = function()
|
|
{
|
|
$message.addClass('hidden');
|
|
$editorTabs.addClass('hidden');
|
|
};
|
|
|
|
/**
|
|
* focuses the message input
|
|
*
|
|
* @name Editor.focusInput
|
|
* @function
|
|
*/
|
|
me.focusInput = function()
|
|
{
|
|
$message.focus();
|
|
};
|
|
|
|
/**
|
|
* sets a new text
|
|
*
|
|
* @name Editor.setText
|
|
* @function
|
|
* @param {string} newText
|
|
*/
|
|
me.setText = function(newText)
|
|
{
|
|
$message.val(newText);
|
|
};
|
|
|
|
/**
|
|
* returns the current text
|
|
*
|
|
* @name Editor.getText
|
|
* @function
|
|
* @return {string}
|
|
*/
|
|
me.getText = function()
|
|
{
|
|
return $message.val();
|
|
};
|
|
|
|
/**
|
|
* init status manager
|
|
*
|
|
* preloads jQuery elements
|
|
*
|
|
* @name Editor.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
$editorTabs = $('#editorTabs');
|
|
$message = $('#message');
|
|
|
|
// bind events
|
|
$message.keydown(supportTabs);
|
|
|
|
// bind click events to tab switchers (a), but save parent of them
|
|
// (li)
|
|
$messageEdit = $('#messageedit').click(viewEditor).parent();
|
|
$messagePreview = $('#messagepreview').click(viewPreview).parent();
|
|
};
|
|
|
|
return me;
|
|
})();
|
|
|
|
/**
|
|
* (view) Parse and show paste.
|
|
*
|
|
* @name PasteViewer
|
|
* @class
|
|
*/
|
|
var PasteViewer = (function () {
|
|
var me = {};
|
|
|
|
var $placeholder,
|
|
$prettyMessage,
|
|
$prettyPrint,
|
|
$plainText;
|
|
|
|
var text,
|
|
format = 'plaintext',
|
|
isDisplayed = false,
|
|
isChanged = true; // by default true as nothing was parsed yet
|
|
|
|
/**
|
|
* apply the set format on paste and displays it
|
|
*
|
|
* @name PasteViewer.parsePaste
|
|
* @private
|
|
* @function
|
|
*/
|
|
function parsePaste()
|
|
{
|
|
// skip parsing if no text is given
|
|
if (text === '') {
|
|
return;
|
|
}
|
|
|
|
// escape HTML entities, link URLs, sanitize
|
|
var escapedLinkedText = Helper.urls2links(
|
|
$('<div />').text(text).html()
|
|
),
|
|
sanitizedLinkedText = DOMPurify.sanitize(escapedLinkedText);
|
|
$plainText.html(sanitizedLinkedText);
|
|
$prettyPrint.html(sanitizedLinkedText);
|
|
|
|
switch (format) {
|
|
case 'markdown':
|
|
var converter = new showdown.Converter({
|
|
strikethrough: true,
|
|
tables: true,
|
|
tablesHeaderId: true,
|
|
simplifiedAutoLink: true,
|
|
excludeTrailingPunctuationFromURLs: true
|
|
});
|
|
// let showdown convert the HTML and sanitize HTML *afterwards*!
|
|
$plainText.html(
|
|
DOMPurify.sanitize(converter.makeHtml(text))
|
|
);
|
|
// add table classes from bootstrap css
|
|
$plainText.find('table').addClass('table-condensed table-bordered');
|
|
break;
|
|
case 'syntaxhighlighting':
|
|
// yes, this is really needed to initialize the environment
|
|
if (typeof prettyPrint === 'function')
|
|
{
|
|
prettyPrint();
|
|
}
|
|
|
|
$prettyPrint.html(
|
|
DOMPurify.sanitize(
|
|
prettyPrintOne(escapedLinkedText, null, true)
|
|
)
|
|
);
|
|
// fall through, as the rest is the same
|
|
default: // = 'plaintext'
|
|
$prettyPrint.css('white-space', 'pre-wrap');
|
|
$prettyPrint.css('word-break', 'normal');
|
|
$prettyPrint.removeClass('prettyprint');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* displays the paste
|
|
*
|
|
* @name PasteViewer.showPaste
|
|
* @private
|
|
* @function
|
|
*/
|
|
function showPaste()
|
|
{
|
|
// instead of "nothing" better display a placeholder
|
|
if (text === '') {
|
|
$placeholder.removeClass('hidden');
|
|
return;
|
|
}
|
|
// otherwise hide the placeholder
|
|
$placeholder.addClass('hidden');
|
|
|
|
switch (format) {
|
|
case 'markdown':
|
|
$plainText.removeClass('hidden');
|
|
$prettyMessage.addClass('hidden');
|
|
break;
|
|
default:
|
|
$plainText.addClass('hidden');
|
|
$prettyMessage.removeClass('hidden');
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* sets the format in which the text is shown
|
|
*
|
|
* @name PasteViewer.setFormat
|
|
* @function
|
|
* @param {string} newFormat the new format
|
|
*/
|
|
me.setFormat = function(newFormat)
|
|
{
|
|
// skip if there is no update
|
|
if (format === newFormat) {
|
|
return;
|
|
}
|
|
|
|
// needs to update display too, if we switch from or to Markdown
|
|
if (format === 'markdown' || newFormat === 'markdown') {
|
|
isDisplayed = false;
|
|
}
|
|
|
|
format = newFormat;
|
|
isChanged = true;
|
|
};
|
|
|
|
/**
|
|
* returns the current format
|
|
*
|
|
* @name PasteViewer.getFormat
|
|
* @function
|
|
* @return {string}
|
|
*/
|
|
me.getFormat = function()
|
|
{
|
|
return format;
|
|
};
|
|
|
|
/**
|
|
* returns whether the current view is pretty printed
|
|
*
|
|
* @name PasteViewer.isPrettyPrinted
|
|
* @function
|
|
* @return {bool}
|
|
*/
|
|
me.isPrettyPrinted = function()
|
|
{
|
|
return $prettyPrint.hasClass('prettyprinted');
|
|
};
|
|
|
|
/**
|
|
* sets the text to show
|
|
*
|
|
* @name PasteViewer.setText
|
|
* @function
|
|
* @param {string} newText the text to show
|
|
*/
|
|
me.setText = function(newText)
|
|
{
|
|
if (text !== newText) {
|
|
text = newText;
|
|
isChanged = true;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* gets the current cached text
|
|
*
|
|
* @name PasteViewer.getText
|
|
* @function
|
|
* @return {string}
|
|
*/
|
|
me.getText = function()
|
|
{
|
|
return text;
|
|
};
|
|
|
|
/**
|
|
* show/update the parsed text (preview)
|
|
*
|
|
* @name PasteViewer.run
|
|
* @function
|
|
*/
|
|
me.run = function()
|
|
{
|
|
if (isChanged) {
|
|
parsePaste();
|
|
isChanged = false;
|
|
}
|
|
|
|
if (!isDisplayed) {
|
|
showPaste();
|
|
isDisplayed = true;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* hide parsed text (preview)
|
|
*
|
|
* @name PasteViewer.hide
|
|
* @function
|
|
*/
|
|
me.hide = function()
|
|
{
|
|
if (!isDisplayed) {
|
|
console.warn('PasteViewer was called to hide the parsed view, but it is already hidden.');
|
|
}
|
|
|
|
$plainText.addClass('hidden');
|
|
$prettyMessage.addClass('hidden');
|
|
$placeholder.addClass('hidden');
|
|
AttachmentViewer.hideAttachmentPreview();
|
|
|
|
isDisplayed = false;
|
|
};
|
|
|
|
/**
|
|
* init status manager
|
|
*
|
|
* preloads jQuery elements
|
|
*
|
|
* @name PasteViewer.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
$placeholder = $('#placeholder');
|
|
$plainText = $('#plaintext');
|
|
$prettyMessage = $('#prettymessage');
|
|
$prettyPrint = $('#prettyprint');
|
|
|
|
// check requirements
|
|
if (typeof prettyPrintOne !== 'function') {
|
|
Alert.showError([
|
|
'The library %s is not available. This may cause display errors.',
|
|
'pretty print'
|
|
]);
|
|
}
|
|
if (typeof showdown !== 'object') {
|
|
Alert.showError([
|
|
'The library %s is not available. This may cause display errors.',
|
|
'showdown'
|
|
]);
|
|
}
|
|
|
|
// get default option from template/HTML or fall back to set value
|
|
format = Model.getFormatDefault() || format;
|
|
text = '';
|
|
isDisplayed = false;
|
|
isChanged = true;
|
|
};
|
|
|
|
return me;
|
|
})();
|
|
|
|
/**
|
|
* (view) Show attachment and preview if possible
|
|
*
|
|
* @name AttachmentViewer
|
|
* @class
|
|
*/
|
|
var AttachmentViewer = (function () {
|
|
var me = {};
|
|
|
|
var $attachmentLink;
|
|
var $attachmentPreview;
|
|
var $attachment;
|
|
var attachmentData;
|
|
var file;
|
|
var $fileInput;
|
|
var $dragAndDropFileName;
|
|
var attachmentHasPreview = false;
|
|
|
|
/**
|
|
* sets the attachment but does not yet show it
|
|
*
|
|
* @name AttachmentViewer.setAttachment
|
|
* @function
|
|
* @param {string} attachmentData - base64-encoded data of file
|
|
* @param {string} fileName - optional, file name
|
|
*/
|
|
me.setAttachment = function(attachmentData, fileName)
|
|
{
|
|
// IE does not support setting a data URI on an a element
|
|
// Convert dataURI to a Blob and use msSaveBlob to download
|
|
if (window.Blob && navigator.msSaveBlob) {
|
|
$attachmentLink.off('click').on('click', function () {
|
|
// data URI format: data:[<mediaType>][;base64],<data>
|
|
|
|
// position in data URI string of where data begins
|
|
var base64Start = attachmentData.indexOf(',') + 1;
|
|
// position in data URI string of where mediaType ends
|
|
var mediaTypeEnd = attachmentData.indexOf(';');
|
|
|
|
// extract mediaType
|
|
var mediaType = attachmentData.substring(5, mediaTypeEnd);
|
|
// extract data and convert to binary
|
|
var decodedData = atob(attachmentData.substring(base64Start));
|
|
|
|
// Transform into a Blob
|
|
var decodedDataLength = decodedData.length;
|
|
var buf = new Uint8Array(decodedDataLength);
|
|
|
|
for (var i = 0; i < decodedDataLength; ++i) {
|
|
buf[i] = decodedData.charCodeAt(i);
|
|
}
|
|
|
|
var blob = new window.Blob([ buf ], { type: mediaType });
|
|
navigator.msSaveBlob(blob, fileName);
|
|
});
|
|
} else {
|
|
$attachmentLink.attr('href', attachmentData);
|
|
}
|
|
|
|
if (typeof fileName !== 'undefined') {
|
|
$attachmentLink.attr('download', fileName);
|
|
}
|
|
|
|
me.handleAttachmentPreview($attachmentPreview, attachmentData);
|
|
};
|
|
|
|
/**
|
|
* displays the attachment
|
|
*
|
|
* @name AttachmentViewer.showAttachment
|
|
* @function
|
|
*/
|
|
me.showAttachment = function()
|
|
{
|
|
$attachment.removeClass('hidden');
|
|
|
|
if (attachmentHasPreview) {
|
|
$attachmentPreview.removeClass('hidden');
|
|
}
|
|
};
|
|
|
|
/**
|
|
* removes the attachment
|
|
*
|
|
* This automatically hides the attachment containers too, to
|
|
* prevent an inconsistent display.
|
|
*
|
|
* @name AttachmentViewer.removeAttachment
|
|
* @function
|
|
*/
|
|
me.removeAttachment = function()
|
|
{
|
|
if (!$attachment.length) {
|
|
return;
|
|
}
|
|
me.hideAttachment();
|
|
me.hideAttachmentPreview();
|
|
$attachmentLink.removeAttr('href');
|
|
$attachmentLink.removeAttr('download');
|
|
$attachmentLink.off('click');
|
|
$attachmentPreview.html('');
|
|
|
|
AttachmentViewer.removeAttachmentData();
|
|
};
|
|
|
|
/**
|
|
* removes the attachment data
|
|
*
|
|
* This removes the data, which would be uploaded otherwise.
|
|
*
|
|
* @name AttachmentViewer.removeAttachmentData
|
|
* @function
|
|
*/
|
|
me.removeAttachmentData = function()
|
|
{
|
|
file = undefined;
|
|
attachmentData = undefined;
|
|
};
|
|
|
|
/**
|
|
* Cleares the drag & drop data.
|
|
*
|
|
* @name AttachmentViewer.clearDragAndDrop
|
|
* @function
|
|
*/
|
|
me.clearDragAndDrop = function()
|
|
{
|
|
$dragAndDropFileName.text('');
|
|
};
|
|
|
|
/**
|
|
* hides the attachment
|
|
*
|
|
* This will not hide the preview (see AttachmentViewer.hideAttachmentPreview
|
|
* for that) nor will it hide the attachment link if it was moved somewhere
|
|
* else (see AttachmentViewer.moveAttachmentTo).
|
|
*
|
|
* @name AttachmentViewer.hideAttachment
|
|
* @function
|
|
*/
|
|
me.hideAttachment = function()
|
|
{
|
|
$attachment.addClass('hidden');
|
|
};
|
|
|
|
/**
|
|
* hides the attachment preview
|
|
*
|
|
* @name AttachmentViewer.hideAttachmentPreview
|
|
* @function
|
|
*/
|
|
me.hideAttachmentPreview = function()
|
|
{
|
|
if ($attachmentPreview) {
|
|
$attachmentPreview.addClass('hidden');
|
|
}
|
|
};
|
|
|
|
/**
|
|
* checks if there is an attachment displayed
|
|
*
|
|
* @name AttachmentViewer.hasAttachment
|
|
* @function
|
|
*/
|
|
me.hasAttachment = function()
|
|
{
|
|
if (!$attachment.length) {
|
|
return false;
|
|
}
|
|
var link = $attachmentLink.prop('href');
|
|
return (typeof link !== 'undefined' && link !== '');
|
|
};
|
|
|
|
/**
|
|
* checks if there is attachment data (for preview!) available
|
|
*
|
|
* It returns true, when there is data that needs to be encrypted.
|
|
*
|
|
* @name AttachmentViewer.hasAttachmentData
|
|
* @function
|
|
*/
|
|
me.hasAttachmentData = function()
|
|
{
|
|
if ($attachment.length) {
|
|
return true;
|
|
}
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* return the attachment
|
|
*
|
|
* @name AttachmentViewer.getAttachment
|
|
* @function
|
|
* @returns {array}
|
|
*/
|
|
me.getAttachment = function()
|
|
{
|
|
return [
|
|
$attachmentLink.prop('href'),
|
|
$attachmentLink.prop('download')
|
|
];
|
|
};
|
|
|
|
/**
|
|
* moves the attachment link to another element
|
|
*
|
|
* It is advisable to hide the attachment afterwards (AttachmentViewer.hideAttachment)
|
|
*
|
|
* @name AttachmentViewer.moveAttachmentTo
|
|
* @function
|
|
* @param {jQuery} $element - the wrapper/container element where this should be moved to
|
|
* @param {string} label - the text to show (%s will be replaced with the file name), will automatically be translated
|
|
*/
|
|
me.moveAttachmentTo = function($element, label)
|
|
{
|
|
// move elemement to new place
|
|
$attachmentLink.appendTo($element);
|
|
|
|
// update text
|
|
I18n._($attachmentLink, label, $attachmentLink.attr('download'));
|
|
};
|
|
|
|
/**
|
|
* read file data as data URL using the FileReader API
|
|
*
|
|
* @name AttachmentViewer.readFileData
|
|
* @private
|
|
* @function
|
|
* @param {object} loadedFile (optional) loaded file object
|
|
* @see {@link https://developer.mozilla.org/en-US/docs/Web/API/FileReader#readAsDataURL()}
|
|
*/
|
|
function readFileData(loadedFile) {
|
|
if (typeof FileReader === 'undefined') {
|
|
// revert loading status…
|
|
me.hideAttachment();
|
|
me.hideAttachmentPreview();
|
|
Alert.showError('Your browser does not support uploading encrypted files. Please use a newer browser.');
|
|
return;
|
|
}
|
|
|
|
var fileReader = new FileReader();
|
|
if (loadedFile === undefined) {
|
|
loadedFile = $fileInput[0].files[0];
|
|
$dragAndDropFileName.text('');
|
|
} else {
|
|
$dragAndDropFileName.text(loadedFile.name);
|
|
}
|
|
|
|
file = loadedFile;
|
|
|
|
fileReader.onload = function (event) {
|
|
var dataURL = event.target.result;
|
|
attachmentData = dataURL;
|
|
|
|
if (Editor.isPreview()) {
|
|
me.handleAttachmentPreview($attachmentPreview, dataURL);
|
|
$attachmentPreview.removeClass('hidden');
|
|
}
|
|
};
|
|
fileReader.readAsDataURL(loadedFile);
|
|
}
|
|
|
|
/**
|
|
* handle the preview of files that can either be an image, video, audio or pdf element
|
|
*
|
|
* @name AttachmentViewer.handleAttachmentPreview
|
|
* @function
|
|
* @argument {jQuery} $targetElement element where the preview should be appended
|
|
* @argument {string} file as a data URL
|
|
*/
|
|
me.handleAttachmentPreview = function ($targetElement, data) {
|
|
if (data) {
|
|
// source: https://developer.mozilla.org/en-US/docs/Web/API/FileReader#readAsDataURL()
|
|
var mimeType = data.slice(
|
|
data.indexOf('data:') + 5,
|
|
data.indexOf(';base64,')
|
|
);
|
|
|
|
attachmentHasPreview = true;
|
|
if (mimeType.match(/image\//i)) {
|
|
$targetElement.html(
|
|
$(document.createElement('img'))
|
|
.attr('src', data)
|
|
.attr('class', 'img-thumbnail')
|
|
);
|
|
} else if (mimeType.match(/video\//i)) {
|
|
$targetElement.html(
|
|
$(document.createElement('video'))
|
|
.attr('controls', 'true')
|
|
.attr('autoplay', 'true')
|
|
.attr('class', 'img-thumbnail')
|
|
|
|
.append($(document.createElement('source'))
|
|
.attr('type', mimeType)
|
|
.attr('src', data))
|
|
);
|
|
} else if (mimeType.match(/audio\//i)) {
|
|
$targetElement.html(
|
|
$(document.createElement('audio'))
|
|
.attr('controls', 'true')
|
|
.attr('autoplay', 'true')
|
|
|
|
.append($(document.createElement('source'))
|
|
.attr('type', mimeType)
|
|
.attr('src', data))
|
|
);
|
|
} else if (mimeType.match(/\/pdf/i)) {
|
|
// PDFs are only displayed if the filesize is smaller than about 1MB (after base64 encoding).
|
|
// Bigger filesizes currently cause crashes in various browsers.
|
|
// See also: https://code.google.com/p/chromium/issues/detail?id=69227
|
|
|
|
// Firefox crashes with files that are about 1.5MB
|
|
// The performance with 1MB files is bearable
|
|
if (data.length > 1398488) {
|
|
Alert.showError('File too large, to display a preview. Please download the attachment.'); //TODO: is this error really neccessary?
|
|
return;
|
|
}
|
|
|
|
// Fallback for browsers, that don't support the vh unit
|
|
var clientHeight = $(window).height();
|
|
|
|
$targetElement.html(
|
|
$(document.createElement('embed'))
|
|
.attr('src', data)
|
|
.attr('type', 'application/pdf')
|
|
.attr('class', 'pdfPreview')
|
|
.css('height', clientHeight)
|
|
);
|
|
} else {
|
|
attachmentHasPreview = false;
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* attaches the file attachment drag & drop handler to the page
|
|
*
|
|
* @name AttachmentViewer.addDragDropHandler
|
|
* @private
|
|
* @function
|
|
*/
|
|
function addDragDropHandler() {
|
|
if (typeof $fileInput === 'undefined' || $fileInput.length === 0) {
|
|
return;
|
|
}
|
|
|
|
var ignoreDragDrop = function(event) {
|
|
event.stopPropagation();
|
|
event.preventDefault();
|
|
};
|
|
|
|
var drop = function(event) {
|
|
var evt = event.originalEvent;
|
|
evt.stopPropagation();
|
|
evt.preventDefault();
|
|
|
|
if ($fileInput) {
|
|
var file = evt.dataTransfer.files[0];
|
|
//Clear the file input:
|
|
$fileInput.wrap('<form>').closest('form').get(0).reset();
|
|
$fileInput.unwrap();
|
|
//Only works in Chrome:
|
|
//fileInput[0].files = e.dataTransfer.files;
|
|
|
|
readFileData(file);
|
|
}
|
|
};
|
|
|
|
$(document).on('drop', drop);
|
|
$(document).on('dragenter', ignoreDragDrop);
|
|
$(document).on('dragover', ignoreDragDrop);
|
|
$fileInput.on('change', function () {
|
|
readFileData();
|
|
});
|
|
}
|
|
|
|
/**
|
|
* attaches the clipboard attachment handler to the page
|
|
*
|
|
* @name AttachmentViewer.addClipboardEventHandler
|
|
* @private
|
|
* @function
|
|
*/
|
|
function addClipboardEventHandler() {
|
|
$(document).on('paste', function (event) {
|
|
var items = (event.clipboardData || event.originalEvent.clipboardData).items;
|
|
for (var i = 0; i < items.length; ++i) {
|
|
if (items[i].kind === 'file') {
|
|
//Clear the file input:
|
|
$fileInput.wrap('<form>').closest('form').get(0).reset();
|
|
$fileInput.unwrap();
|
|
|
|
readFileData(items[i].getAsFile());
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
|
|
/**
|
|
* getter for attachment data
|
|
*
|
|
* @name AttachmentViewer.getAttachmentData
|
|
* @function
|
|
* @return {jQuery}
|
|
*/
|
|
me.getAttachmentData = function () {
|
|
return attachmentData;
|
|
};
|
|
|
|
/**
|
|
* getter for attachment link
|
|
*
|
|
* @name AttachmentViewer.getAttachmentLink
|
|
* @function
|
|
* @return {jQuery}
|
|
*/
|
|
me.getAttachmentLink = function () {
|
|
return $attachmentLink;
|
|
};
|
|
|
|
/**
|
|
* getter for attachment preview
|
|
*
|
|
* @name AttachmentViewer.getAttachmentPreview
|
|
* @function
|
|
* @return {jQuery}
|
|
*/
|
|
me.getAttachmentPreview = function () {
|
|
return $attachmentPreview;
|
|
};
|
|
|
|
/**
|
|
* getter for file data, returns the file contents
|
|
*
|
|
* @name AttachmentViewer.getFile
|
|
* @function
|
|
* @return {string}
|
|
*/
|
|
me.getFile = function () {
|
|
return file;
|
|
};
|
|
|
|
/**
|
|
* initiate
|
|
*
|
|
* preloads jQuery elements
|
|
*
|
|
* @name AttachmentViewer.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
$attachment = $('#attachment');
|
|
if($attachment.length){
|
|
$attachmentLink = $('#attachment a');
|
|
$attachmentPreview = $('#attachmentPreview');
|
|
$dragAndDropFileName = $('#dragAndDropFileName');
|
|
|
|
$fileInput = $('#file');
|
|
addDragDropHandler();
|
|
addClipboardEventHandler();
|
|
}
|
|
}
|
|
|
|
return me;
|
|
})();
|
|
|
|
/**
|
|
* (view) Shows discussion thread and handles replies
|
|
*
|
|
* @name DiscussionViewer
|
|
* @class
|
|
*/
|
|
var DiscussionViewer = (function () {
|
|
var me = {};
|
|
|
|
var $commentTail,
|
|
$discussion,
|
|
$reply,
|
|
$replyMessage,
|
|
$replyNickname,
|
|
$replyStatus,
|
|
$commentContainer;
|
|
|
|
var replyCommentId;
|
|
|
|
/**
|
|
* initializes the templates
|
|
*
|
|
* @name DiscussionViewer.initTemplates
|
|
* @private
|
|
* @function
|
|
*/
|
|
function initTemplates()
|
|
{
|
|
$reply = Model.getTemplate('reply');
|
|
$replyMessage = $reply.find('#replymessage');
|
|
$replyNickname = $reply.find('#nickname');
|
|
$replyStatus = $reply.find('#replystatus');
|
|
|
|
// cache jQuery elements
|
|
$commentTail = Model.getTemplate('commenttail');
|
|
}
|
|
|
|
/**
|
|
* open the comment entry when clicking the "Reply" button of a comment
|
|
*
|
|
* @name DiscussionViewer.openReply
|
|
* @private
|
|
* @function
|
|
* @param {Event} event
|
|
*/
|
|
function openReply(event)
|
|
{
|
|
var $source = $(event.target);
|
|
|
|
// clear input
|
|
$replyMessage.val('');
|
|
$replyNickname.val('');
|
|
|
|
// get comment id from source element
|
|
replyCommentId = $source.parent().prop('id').split('_')[1];
|
|
|
|
// move to correct position
|
|
$source.after($reply);
|
|
|
|
// show
|
|
$reply.removeClass('hidden');
|
|
$replyMessage.focus();
|
|
|
|
event.preventDefault();
|
|
}
|
|
|
|
/**
|
|
* custom handler for displaying notifications in own status message area
|
|
*
|
|
* @name DiscussionViewer.handleNotification
|
|
* @function
|
|
* @param {string} alertType
|
|
* @return {bool|jQuery}
|
|
*/
|
|
me.handleNotification = function(alertType)
|
|
{
|
|
// ignore loading messages
|
|
if (alertType === 'loading') {
|
|
return false;
|
|
}
|
|
|
|
if (alertType === 'danger') {
|
|
$replyStatus.removeClass('alert-info');
|
|
$replyStatus.addClass('alert-danger');
|
|
$replyStatus.find(':first').removeClass('glyphicon-alert');
|
|
$replyStatus.find(':first').addClass('glyphicon-info-sign');
|
|
} else {
|
|
$replyStatus.removeClass('alert-danger');
|
|
$replyStatus.addClass('alert-info');
|
|
$replyStatus.find(':first').removeClass('glyphicon-info-sign');
|
|
$replyStatus.find(':first').addClass('glyphicon-alert');
|
|
}
|
|
|
|
return $replyStatus;
|
|
};
|
|
|
|
/**
|
|
* adds another comment
|
|
*
|
|
* @name DiscussionViewer.addComment
|
|
* @function
|
|
* @param {object} comment
|
|
* @param {string} commentText
|
|
* @param {string} nickname
|
|
*/
|
|
me.addComment = function(comment, commentText, nickname)
|
|
{
|
|
if (commentText === '') {
|
|
commentText = 'comment decryption failed';
|
|
}
|
|
|
|
// create new comment based on template
|
|
var $commentEntry = Model.getTemplate('comment');
|
|
$commentEntry.prop('id', 'comment_' + comment.id);
|
|
var $commentEntryData = $commentEntry.find('div.commentdata');
|
|
|
|
// set & parse text
|
|
$commentEntryData.html(
|
|
DOMPurify.sanitize(
|
|
Helper.urls2links(commentText)
|
|
)
|
|
);
|
|
|
|
// set nickname
|
|
if (nickname.length > 0) {
|
|
$commentEntry.find('span.nickname').text(nickname);
|
|
} else {
|
|
$commentEntry.find('span.nickname').html('<i></i>');
|
|
I18n._($commentEntry.find('span.nickname i'), 'Anonymous');
|
|
}
|
|
|
|
// set date
|
|
$commentEntry.find('span.commentdate')
|
|
.text(' (' + (new Date(comment.meta.postdate * 1000).toLocaleString()) + ')')
|
|
.attr('title', 'CommentID: ' + comment.id);
|
|
|
|
// if an avatar is available, display it
|
|
if (comment.meta.vizhash) {
|
|
$commentEntry.find('span.nickname')
|
|
.before(
|
|
'<img src="' + comment.meta.vizhash + '" class="vizhash" /> '
|
|
);
|
|
$(document).on('languageLoaded', function () {
|
|
$commentEntry.find('img.vizhash')
|
|
.prop('title', I18n._('Avatar generated from IP address'));
|
|
});
|
|
}
|
|
|
|
// starting point (default value/fallback)
|
|
var $place = $commentContainer;
|
|
|
|
// if parent comment exists
|
|
var $parentComment = $('#comment_' + comment.parentid);
|
|
if ($parentComment.length) {
|
|
// use parent as position for new comment, so it is shifted
|
|
// to the right
|
|
$place = $parentComment;
|
|
}
|
|
|
|
// finally append comment
|
|
$place.append($commentEntry);
|
|
};
|
|
|
|
/**
|
|
* finishes the discussion area after last comment
|
|
*
|
|
* @name DiscussionViewer.finishDiscussion
|
|
* @function
|
|
*/
|
|
me.finishDiscussion = function()
|
|
{
|
|
// add 'add new comment' area
|
|
$commentContainer.append($commentTail);
|
|
|
|
// show discussions
|
|
$discussion.removeClass('hidden');
|
|
};
|
|
|
|
/**
|
|
* removes the old discussion and prepares everything for creating a new
|
|
* one.
|
|
*
|
|
* @name DiscussionViewer.prepareNewDiscussion
|
|
* @function
|
|
*/
|
|
me.prepareNewDiscussion = function()
|
|
{
|
|
$commentContainer.html('');
|
|
$discussion.addClass('hidden');
|
|
|
|
// (re-)init templates
|
|
initTemplates();
|
|
};
|
|
|
|
/**
|
|
* returns the users message from the reply form
|
|
*
|
|
* @name DiscussionViewer.getReplyMessage
|
|
* @function
|
|
* @return {String}
|
|
*/
|
|
me.getReplyMessage = function()
|
|
{
|
|
return $replyMessage.val();
|
|
};
|
|
|
|
/**
|
|
* returns the users nickname (if any) from the reply form
|
|
*
|
|
* @name DiscussionViewer.getReplyNickname
|
|
* @function
|
|
* @return {String}
|
|
*/
|
|
me.getReplyNickname = function()
|
|
{
|
|
return $replyNickname.val();
|
|
};
|
|
|
|
/**
|
|
* returns the id of the parent comment the user is replying to
|
|
*
|
|
* @name DiscussionViewer.getReplyCommentId
|
|
* @function
|
|
* @return {int|undefined}
|
|
*/
|
|
me.getReplyCommentId = function()
|
|
{
|
|
return replyCommentId;
|
|
};
|
|
|
|
/**
|
|
* highlights a specific comment and scrolls to it if necessary
|
|
*
|
|
* @name DiscussionViewer.highlightComment
|
|
* @function
|
|
* @param {string} commentId
|
|
* @param {bool} fadeOut - whether to fade out the comment
|
|
*/
|
|
me.highlightComment = function(commentId, fadeOut)
|
|
{
|
|
var $comment = $('#comment_' + commentId);
|
|
// in case comment does not exist, cancel
|
|
if ($comment.length === 0) {
|
|
return;
|
|
}
|
|
|
|
$comment.addClass('highlight');
|
|
var highlightComment = function () {
|
|
if (fadeOut === true) {
|
|
setTimeout(function () {
|
|
$comment.removeClass('highlight');
|
|
}, 300);
|
|
}
|
|
};
|
|
|
|
if (UiHelper.isVisible($comment)) {
|
|
return highlightComment();
|
|
}
|
|
|
|
UiHelper.scrollTo($comment, 100, 'swing', highlightComment);
|
|
};
|
|
|
|
/**
|
|
* initiate
|
|
*
|
|
* preloads jQuery elements
|
|
*
|
|
* @name DiscussionViewer.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
// bind events to templates (so they are later cloned)
|
|
$('#commenttailtemplate, #commenttemplate').find('button').on('click', openReply);
|
|
$('#replytemplate').find('button').on('click', PasteEncrypter.sendComment);
|
|
|
|
$commentContainer = $('#commentcontainer');
|
|
$discussion = $('#discussion');
|
|
};
|
|
|
|
return me;
|
|
})();
|
|
|
|
/**
|
|
* Manage top (navigation) bar
|
|
*
|
|
* @name TopNav
|
|
* @param {object} window
|
|
* @param {object} document
|
|
* @class
|
|
*/
|
|
var TopNav = (function (window, document) {
|
|
var me = {};
|
|
|
|
var createButtonsDisplayed = false;
|
|
var viewButtonsDisplayed = false;
|
|
|
|
var $attach,
|
|
$burnAfterReading,
|
|
$burnAfterReadingOption,
|
|
$cloneButton,
|
|
$customAttachment,
|
|
$expiration,
|
|
$fileRemoveButton,
|
|
$fileWrap,
|
|
$formatter,
|
|
$newButton,
|
|
$openDiscussion,
|
|
$openDiscussionOption,
|
|
$password,
|
|
$passwordInput,
|
|
$rawTextButton,
|
|
$qrCodeLink,
|
|
$sendButton,
|
|
$retryButton;
|
|
|
|
var pasteExpiration = '1week',
|
|
retryButtonCallback;
|
|
|
|
/**
|
|
* set the expiration on bootstrap templates in dropdown
|
|
*
|
|
* @name TopNav.updateExpiration
|
|
* @private
|
|
* @function
|
|
* @param {Event} event
|
|
*/
|
|
function updateExpiration(event)
|
|
{
|
|
// get selected option
|
|
var target = $(event.target);
|
|
|
|
// update dropdown display and save new expiration time
|
|
$('#pasteExpirationDisplay').text(target.text());
|
|
pasteExpiration = target.data('expiration');
|
|
|
|
event.preventDefault();
|
|
}
|
|
|
|
/**
|
|
* set the format on bootstrap templates in dropdown
|
|
*
|
|
* @name TopNav.updateFormat
|
|
* @private
|
|
* @function
|
|
* @param {Event} event
|
|
*/
|
|
function updateFormat(event)
|
|
{
|
|
// get selected option
|
|
var $target = $(event.target);
|
|
|
|
// update dropdown display and save new format
|
|
var newFormat = $target.data('format');
|
|
$('#pasteFormatterDisplay').text($target.text());
|
|
PasteViewer.setFormat(newFormat);
|
|
|
|
// update preview
|
|
if (Editor.isPreview()) {
|
|
PasteViewer.run();
|
|
}
|
|
|
|
event.preventDefault();
|
|
}
|
|
|
|
/**
|
|
* when "burn after reading" is checked, disable discussion
|
|
*
|
|
* @name TopNav.changeBurnAfterReading
|
|
* @private
|
|
* @function
|
|
*/
|
|
function changeBurnAfterReading()
|
|
{
|
|
if ($burnAfterReading.is(':checked')) {
|
|
$openDiscussionOption.addClass('buttondisabled');
|
|
$openDiscussion.prop('checked', false);
|
|
|
|
// if button is actually disabled, force-enable it and uncheck other button
|
|
$burnAfterReadingOption.removeClass('buttondisabled');
|
|
} else {
|
|
$openDiscussionOption.removeClass('buttondisabled');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* when discussion is checked, disable "burn after reading"
|
|
*
|
|
* @name TopNav.changeOpenDiscussion
|
|
* @private
|
|
* @function
|
|
*/
|
|
function changeOpenDiscussion()
|
|
{
|
|
if ($openDiscussion.is(':checked')) {
|
|
$burnAfterReadingOption.addClass('buttondisabled');
|
|
$burnAfterReading.prop('checked', false);
|
|
|
|
// if button is actually disabled, force-enable it and uncheck other button
|
|
$openDiscussionOption.removeClass('buttondisabled');
|
|
} else {
|
|
$burnAfterReadingOption.removeClass('buttondisabled');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* return raw text
|
|
*
|
|
* @name TopNav.rawText
|
|
* @private
|
|
* @function
|
|
*/
|
|
function rawText()
|
|
{
|
|
TopNav.hideAllButtons();
|
|
Alert.showLoading('Showing raw text…', 'time');
|
|
var paste = PasteViewer.getText();
|
|
|
|
// push a new state to allow back navigation with browser back button
|
|
history.pushState(
|
|
{type: 'raw'},
|
|
document.title,
|
|
// recreate paste URL
|
|
Helper.baseUri() + '?' + Model.getPasteId() + '#' +
|
|
Model.getPasteKey()
|
|
);
|
|
|
|
// we use text/html instead of text/plain to avoid a bug when
|
|
// reloading the raw text view (it reverts to type text/html)
|
|
var $head = $('head').children().not('noscript, script, link[type="text/css"]');
|
|
var newDoc = document.open('text/html', 'replace');
|
|
newDoc.write('<!DOCTYPE html><html><head>');
|
|
for (var i = 0; i < $head.length; ++i) {
|
|
newDoc.write($head[i].outerHTML);
|
|
}
|
|
newDoc.write('</head><body><pre>' + DOMPurify.sanitize($('<div />').text(paste).html()) + '</pre></body></html>');
|
|
newDoc.close();
|
|
}
|
|
|
|
/**
|
|
* saves the language in a cookie and reloads the page
|
|
*
|
|
* @name TopNav.setLanguage
|
|
* @private
|
|
* @function
|
|
* @param {Event} event
|
|
*/
|
|
function setLanguage(event)
|
|
{
|
|
document.cookie = 'lang=' + $(event.target).data('lang');
|
|
UiHelper.reloadHome();
|
|
}
|
|
|
|
/**
|
|
* hides all messages and creates a new paste
|
|
*
|
|
* @name TopNav.clickNewPaste
|
|
* @private
|
|
* @function
|
|
*/
|
|
function clickNewPaste()
|
|
{
|
|
Controller.hideStatusMessages();
|
|
Controller.newPaste();
|
|
}
|
|
|
|
/**
|
|
* retrys some callback registered before
|
|
*
|
|
* @name TopNav.clickRetryButton
|
|
* @private
|
|
* @function
|
|
* @param {Event} event
|
|
*/
|
|
function clickRetryButton(event)
|
|
{
|
|
retryButtonCallback(event);
|
|
}
|
|
|
|
/**
|
|
* removes the existing attachment
|
|
*
|
|
* @name TopNav.removeAttachment
|
|
* @private
|
|
* @function
|
|
* @param {Event} event
|
|
*/
|
|
function removeAttachment(event)
|
|
{
|
|
// if custom attachment is used, remove it first
|
|
if (!$customAttachment.hasClass('hidden')) {
|
|
AttachmentViewer.removeAttachment();
|
|
$customAttachment.addClass('hidden');
|
|
$fileWrap.removeClass('hidden');
|
|
}
|
|
|
|
// in any case, remove saved attachment data
|
|
AttachmentViewer.removeAttachmentData();
|
|
|
|
// hide UI for selected files
|
|
// our up-to-date jQuery can handle it :)
|
|
$fileWrap.find('input').val('');
|
|
AttachmentViewer.clearDragAndDrop();
|
|
|
|
// pevent '#' from appearing in the URL
|
|
event.preventDefault();
|
|
}
|
|
|
|
/**
|
|
* Shows the QR code of the current paste (URL).
|
|
*
|
|
* @name TopNav.displayQrCode
|
|
* @private
|
|
* @function
|
|
*/
|
|
function displayQrCode()
|
|
{
|
|
var qrCanvas = kjua({
|
|
render: 'canvas',
|
|
text: window.location.href
|
|
});
|
|
$('#qrcode-display').html(qrCanvas);
|
|
}
|
|
|
|
/**
|
|
* Shows all navigation elements for viewing an existing paste
|
|
*
|
|
* @name TopNav.showViewButtons
|
|
* @function
|
|
*/
|
|
me.showViewButtons = function()
|
|
{
|
|
if (viewButtonsDisplayed) {
|
|
console.warn('showViewButtons: view buttons are already displayed');
|
|
return;
|
|
}
|
|
|
|
$newButton.removeClass('hidden');
|
|
$cloneButton.removeClass('hidden');
|
|
$rawTextButton.removeClass('hidden');
|
|
$qrCodeLink.removeClass('hidden');
|
|
|
|
viewButtonsDisplayed = true;
|
|
};
|
|
|
|
/**
|
|
* Hides all navigation elements for viewing an existing paste
|
|
*
|
|
* @name TopNav.hideViewButtons
|
|
* @function
|
|
*/
|
|
me.hideViewButtons = function()
|
|
{
|
|
if (!viewButtonsDisplayed) {
|
|
console.warn('hideViewButtons: view buttons are already hidden');
|
|
return;
|
|
}
|
|
|
|
$cloneButton.addClass('hidden');
|
|
$newButton.addClass('hidden');
|
|
$rawTextButton.addClass('hidden');
|
|
$qrCodeLink.addClass('hidden');
|
|
|
|
viewButtonsDisplayed = false;
|
|
};
|
|
|
|
/**
|
|
* Hides all elements belonging to existing pastes
|
|
*
|
|
* @name TopNav.hideAllButtons
|
|
* @function
|
|
*/
|
|
me.hideAllButtons = function()
|
|
{
|
|
me.hideViewButtons();
|
|
me.hideCreateButtons();
|
|
};
|
|
|
|
/**
|
|
* shows all elements needed when creating a new paste
|
|
*
|
|
* @name TopNav.showCreateButtons
|
|
* @function
|
|
*/
|
|
me.showCreateButtons = function()
|
|
{
|
|
if (createButtonsDisplayed) {
|
|
console.warn('showCreateButtons: create buttons are already displayed');
|
|
return;
|
|
}
|
|
|
|
$attach.removeClass('hidden');
|
|
$burnAfterReadingOption.removeClass('hidden');
|
|
$expiration.removeClass('hidden');
|
|
$formatter.removeClass('hidden');
|
|
$newButton.removeClass('hidden');
|
|
$openDiscussionOption.removeClass('hidden');
|
|
$password.removeClass('hidden');
|
|
$sendButton.removeClass('hidden');
|
|
|
|
createButtonsDisplayed = true;
|
|
};
|
|
|
|
/**
|
|
* shows all elements needed when creating a new paste
|
|
*
|
|
* @name TopNav.hideCreateButtons
|
|
* @function
|
|
*/
|
|
me.hideCreateButtons = function()
|
|
{
|
|
if (!createButtonsDisplayed) {
|
|
console.warn('hideCreateButtons: create buttons are already hidden');
|
|
return;
|
|
}
|
|
|
|
$newButton.addClass('hidden');
|
|
$sendButton.addClass('hidden');
|
|
$expiration.addClass('hidden');
|
|
$formatter.addClass('hidden');
|
|
$burnAfterReadingOption.addClass('hidden');
|
|
$openDiscussionOption.addClass('hidden');
|
|
$password.addClass('hidden');
|
|
$attach.addClass('hidden');
|
|
|
|
createButtonsDisplayed = false;
|
|
};
|
|
|
|
/**
|
|
* only shows the "new paste" button
|
|
*
|
|
* @name TopNav.showNewPasteButton
|
|
* @function
|
|
*/
|
|
me.showNewPasteButton = function()
|
|
{
|
|
$newButton.removeClass('hidden');
|
|
};
|
|
|
|
/**
|
|
* only shows the "retry" button
|
|
*
|
|
* @name TopNav.showRetryButton
|
|
* @function
|
|
*/
|
|
me.showRetryButton = function()
|
|
{
|
|
$retryButton.removeClass('hidden');
|
|
}
|
|
|
|
/**
|
|
* hides the "retry" button
|
|
*
|
|
* @name TopNav.hideRetryButton
|
|
* @function
|
|
*/
|
|
me.hideRetryButton = function()
|
|
{
|
|
$retryButton.addClass('hidden');
|
|
}
|
|
|
|
/**
|
|
* only hides the clone button
|
|
*
|
|
* @name TopNav.hideCloneButton
|
|
* @function
|
|
*/
|
|
me.hideCloneButton = function()
|
|
{
|
|
$cloneButton.addClass('hidden');
|
|
};
|
|
|
|
/**
|
|
* only hides the raw text button
|
|
*
|
|
* @name TopNav.hideRawButton
|
|
* @function
|
|
*/
|
|
me.hideRawButton = function()
|
|
{
|
|
$rawTextButton.addClass('hidden');
|
|
};
|
|
|
|
/**
|
|
* hides the file selector in attachment
|
|
*
|
|
* @name TopNav.hideFileSelector
|
|
* @function
|
|
*/
|
|
me.hideFileSelector = function()
|
|
{
|
|
$fileWrap.addClass('hidden');
|
|
};
|
|
|
|
|
|
/**
|
|
* shows the custom attachment
|
|
*
|
|
* @name TopNav.showCustomAttachment
|
|
* @function
|
|
*/
|
|
me.showCustomAttachment = function()
|
|
{
|
|
$customAttachment.removeClass('hidden');
|
|
};
|
|
|
|
/**
|
|
* collapses the navigation bar, only if expanded
|
|
*
|
|
* @name TopNav.collapseBar
|
|
* @function
|
|
*/
|
|
me.collapseBar = function()
|
|
{
|
|
if ($('#navbar').attr('aria-expanded') === 'true') {
|
|
$('.navbar-toggle').click();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* returns the currently set expiration time
|
|
*
|
|
* @name TopNav.getExpiration
|
|
* @function
|
|
* @return {int}
|
|
*/
|
|
me.getExpiration = function()
|
|
{
|
|
return pasteExpiration;
|
|
};
|
|
|
|
/**
|
|
* returns the currently selected file(s)
|
|
*
|
|
* @name TopNav.getFileList
|
|
* @function
|
|
* @return {FileList|null}
|
|
*/
|
|
me.getFileList = function()
|
|
{
|
|
var $file = $('#file');
|
|
|
|
// if no file given, return null
|
|
if (!$file.length || !$file[0].files.length) {
|
|
return null;
|
|
}
|
|
|
|
// ensure the selected file is still accessible
|
|
if (!($file[0].files && $file[0].files[0])) {
|
|
return null;
|
|
}
|
|
|
|
return $file[0].files;
|
|
};
|
|
|
|
/**
|
|
* returns the state of the burn after reading checkbox
|
|
*
|
|
* @name TopNav.getExpiration
|
|
* @function
|
|
* @return {bool}
|
|
*/
|
|
me.getBurnAfterReading = function()
|
|
{
|
|
return $burnAfterReading.is(':checked');
|
|
};
|
|
|
|
/**
|
|
* returns the state of the discussion checkbox
|
|
*
|
|
* @name TopNav.getOpenDiscussion
|
|
* @function
|
|
* @return {bool}
|
|
*/
|
|
me.getOpenDiscussion = function()
|
|
{
|
|
return $openDiscussion.is(':checked');
|
|
};
|
|
|
|
/**
|
|
* returns the entered password
|
|
*
|
|
* @name TopNav.getPassword
|
|
* @function
|
|
* @return {string}
|
|
*/
|
|
me.getPassword = function()
|
|
{
|
|
return $passwordInput.val();
|
|
};
|
|
|
|
/**
|
|
* returns the element where custom attachments can be placed
|
|
*
|
|
* Used by AttachmentViewer when an attachment is cloned here.
|
|
*
|
|
* @name TopNav.getCustomAttachment
|
|
* @function
|
|
* @return {jQuery}
|
|
*/
|
|
me.getCustomAttachment = function()
|
|
{
|
|
return $customAttachment;
|
|
};
|
|
|
|
/**
|
|
* Set a function to call when the retry button is clicked.
|
|
*
|
|
* @name TopNav.setRetryCallback
|
|
* @function
|
|
* @param {function} callback
|
|
*/
|
|
me.setRetryCallback = function(callback)
|
|
{
|
|
retryButtonCallback = callback;
|
|
}
|
|
|
|
/**
|
|
* init navigation manager
|
|
*
|
|
* preloads jQuery elements
|
|
*
|
|
* @name TopNav.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
$attach = $('#attach');
|
|
$burnAfterReading = $('#burnafterreading');
|
|
$burnAfterReadingOption = $('#burnafterreadingoption');
|
|
$cloneButton = $('#clonebutton');
|
|
$customAttachment = $('#customattachment');
|
|
$expiration = $('#expiration');
|
|
$fileRemoveButton = $('#fileremovebutton');
|
|
$fileWrap = $('#filewrap');
|
|
$formatter = $('#formatter');
|
|
$newButton = $('#newbutton');
|
|
$openDiscussion = $('#opendiscussion');
|
|
$openDiscussionOption = $('#opendiscussionoption');
|
|
$password = $('#password');
|
|
$passwordInput = $('#passwordinput');
|
|
$rawTextButton = $('#rawtextbutton');
|
|
$retryButton = $('#retrybutton');
|
|
$sendButton = $('#sendbutton');
|
|
$qrCodeLink = $('#qrcodelink');
|
|
|
|
// bootstrap template drop down
|
|
$('#language ul.dropdown-menu li a').click(setLanguage);
|
|
// page template drop down
|
|
$('#language select option').click(setLanguage);
|
|
|
|
// bind events
|
|
$burnAfterReading.change(changeBurnAfterReading);
|
|
$openDiscussionOption.change(changeOpenDiscussion);
|
|
$newButton.click(clickNewPaste);
|
|
$sendButton.click(PasteEncrypter.sendPaste);
|
|
$cloneButton.click(Controller.clonePaste);
|
|
$rawTextButton.click(rawText);
|
|
$retryButton.click(clickRetryButton);
|
|
$fileRemoveButton.click(removeAttachment);
|
|
$qrCodeLink.click(displayQrCode);
|
|
|
|
// bootstrap template drop downs
|
|
$('ul.dropdown-menu li a', $('#expiration').parent()).click(updateExpiration);
|
|
$('ul.dropdown-menu li a', $('#formatter').parent()).click(updateFormat);
|
|
|
|
// initiate default state of checkboxes
|
|
changeBurnAfterReading();
|
|
changeOpenDiscussion();
|
|
|
|
// get default value from template or fall back to set value
|
|
pasteExpiration = Model.getExpirationDefault() || pasteExpiration;
|
|
|
|
createButtonsDisplayed = false;
|
|
viewButtonsDisplayed = false;
|
|
};
|
|
|
|
return me;
|
|
})(window, document);
|
|
|
|
/**
|
|
* Responsible for AJAX requests, transparently handles encryption…
|
|
*
|
|
* @name Uploader
|
|
* @class
|
|
*/
|
|
var Uploader = (function () {
|
|
var me = {};
|
|
|
|
var successFunc = null,
|
|
failureFunc = null,
|
|
url,
|
|
data,
|
|
symmetricKey,
|
|
password;
|
|
|
|
/**
|
|
* public variable ('constant') for errors to prevent magic numbers
|
|
*
|
|
* @name Uploader.error
|
|
* @readonly
|
|
* @enum {Object}
|
|
*/
|
|
me.error = {
|
|
okay: 0,
|
|
custom: 1,
|
|
unknown: 2,
|
|
serverError: 3
|
|
};
|
|
|
|
/**
|
|
* ajaxHeaders to send in AJAX requests
|
|
*
|
|
* @name Uploader.ajaxHeaders
|
|
* @private
|
|
* @readonly
|
|
* @enum {Object}
|
|
*/
|
|
var ajaxHeaders = {'X-Requested-With': 'JSONHttpRequest'};
|
|
|
|
/**
|
|
* called after successful upload
|
|
*
|
|
* @name Uploader.checkCryptParameters
|
|
* @private
|
|
* @function
|
|
* @throws {string}
|
|
*/
|
|
function checkCryptParameters()
|
|
{
|
|
// workaround for this nasty 'bug' in ECMAScript
|
|
// see https://stackoverflow.com/questions/18808226/why-is-typeof-null-object
|
|
var typeOfKey = typeof symmetricKey;
|
|
if (symmetricKey === null) {
|
|
typeOfKey = 'null';
|
|
}
|
|
|
|
// in case of missing preparation, throw error
|
|
switch (typeOfKey) {
|
|
case 'string':
|
|
// already set, all right
|
|
return;
|
|
case 'null':
|
|
// needs to be generated auto-generate
|
|
symmetricKey = CryptTool.getSymmetricKey();
|
|
break;
|
|
default:
|
|
console.error('current invalid symmetricKey: ', symmetricKey);
|
|
throw 'symmetricKey is invalid, probably the module was not prepared';
|
|
}
|
|
// password is optional
|
|
}
|
|
|
|
/**
|
|
* called after successful upload
|
|
*
|
|
* @name Uploader.success
|
|
* @private
|
|
* @function
|
|
* @param {int} status
|
|
* @param {int} result - optional
|
|
*/
|
|
function success(status, result)
|
|
{
|
|
// add useful data to result
|
|
result.encryptionKey = symmetricKey;
|
|
result.requestData = data;
|
|
|
|
if (successFunc !== null) {
|
|
successFunc(status, result);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* called after a upload failure
|
|
*
|
|
* @name Uploader.fail
|
|
* @private
|
|
* @function
|
|
* @param {int} status - internal code
|
|
* @param {int} result - original error code
|
|
*/
|
|
function fail(status, result)
|
|
{
|
|
if (failureFunc !== null) {
|
|
failureFunc(status, result);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* actually uploads the data
|
|
*
|
|
* @name Uploader.run
|
|
* @function
|
|
*/
|
|
me.run = function()
|
|
{
|
|
$.ajax({
|
|
type: 'POST',
|
|
url: url,
|
|
data: data,
|
|
dataType: 'json',
|
|
headers: ajaxHeaders,
|
|
success: function(result) {
|
|
if (result.status === 0) {
|
|
success(0, result);
|
|
} else if (result.status === 1) {
|
|
fail(1, result);
|
|
} else {
|
|
fail(2, result);
|
|
}
|
|
}
|
|
})
|
|
.fail(function(jqXHR, textStatus, errorThrown) {
|
|
console.error(textStatus, errorThrown);
|
|
fail(3, jqXHR);
|
|
});
|
|
};
|
|
|
|
/**
|
|
* set success function
|
|
*
|
|
* @name Uploader.setUrl
|
|
* @function
|
|
* @param {function} newUrl
|
|
*/
|
|
me.setUrl = function(newUrl)
|
|
{
|
|
url = newUrl;
|
|
};
|
|
|
|
/**
|
|
* sets the password to use (first value) and optionally also the
|
|
* encryption key (not recommend, it is automatically generated).
|
|
*
|
|
* Note: Call this after prepare() as prepare() resets these values.
|
|
*
|
|
* @name Uploader.setCryptValues
|
|
* @function
|
|
* @param {string} newPassword
|
|
* @param {string} newKey - optional
|
|
*/
|
|
me.setCryptParameters = function(newPassword, newKey)
|
|
{
|
|
password = newPassword;
|
|
|
|
if (typeof newKey !== 'undefined') {
|
|
symmetricKey = newKey;
|
|
}
|
|
};
|
|
|
|
/**
|
|
* set success function
|
|
*
|
|
* @name Uploader.setSuccess
|
|
* @function
|
|
* @param {function} func
|
|
*/
|
|
me.setSuccess = function(func)
|
|
{
|
|
successFunc = func;
|
|
};
|
|
|
|
/**
|
|
* set failure function
|
|
*
|
|
* @name Uploader.setFailure
|
|
* @function
|
|
* @param {function} func
|
|
*/
|
|
me.setFailure = function(func)
|
|
{
|
|
failureFunc = func;
|
|
};
|
|
|
|
/**
|
|
* prepares a new upload
|
|
*
|
|
* Call this when doing a new upload to reset any data from potential
|
|
* previous uploads. Must be called before any other method of this
|
|
* module.
|
|
*
|
|
* @name Uploader.prepare
|
|
* @function
|
|
* @return {object}
|
|
*/
|
|
me.prepare = function()
|
|
{
|
|
// entropy should already be checked!
|
|
|
|
// reset password
|
|
password = '';
|
|
|
|
// reset key, so it a new one is generated when it is used
|
|
symmetricKey = null;
|
|
|
|
// reset data
|
|
successFunc = null;
|
|
failureFunc = null;
|
|
url = Helper.baseUri();
|
|
data = {};
|
|
};
|
|
|
|
/**
|
|
* encrypts and sets the data
|
|
*
|
|
* @name Uploader.setData
|
|
* @function
|
|
* @param {string} index
|
|
* @param {mixed} element
|
|
*/
|
|
me.setData = function(index, element)
|
|
{
|
|
checkCryptParameters();
|
|
data[index] = CryptTool.cipher(symmetricKey, password, element);
|
|
};
|
|
|
|
/**
|
|
* set the additional metadata to send unencrypted
|
|
*
|
|
* @name Uploader.setUnencryptedData
|
|
* @function
|
|
* @param {string} index
|
|
* @param {mixed} element
|
|
*/
|
|
me.setUnencryptedData = function(index, element)
|
|
{
|
|
data[index] = element;
|
|
};
|
|
|
|
/**
|
|
* set the additional metadata to send unencrypted passed at once
|
|
*
|
|
* @name Uploader.setUnencryptedData
|
|
* @function
|
|
* @param {object} newData
|
|
*/
|
|
me.setUnencryptedBulkData = function(newData)
|
|
{
|
|
$.extend(data, newData);
|
|
};
|
|
|
|
/**
|
|
* Helper, which parses shows a general error message based on the result of the Uploader
|
|
*
|
|
* @name Uploader.parseUploadError
|
|
* @function
|
|
* @param {int} status
|
|
* @param {object} data
|
|
* @param {string} doThisThing - a human description of the action, which was tried
|
|
* @return {array}
|
|
*/
|
|
me.parseUploadError = function(status, data, doThisThing) {
|
|
var errorArray;
|
|
|
|
switch (status) {
|
|
case me.error.custom:
|
|
errorArray = ['Could not ' + doThisThing + ': %s', data.message];
|
|
break;
|
|
case me.error.unknown:
|
|
errorArray = ['Could not ' + doThisThing + ': %s', I18n._('unknown status')];
|
|
break;
|
|
case me.error.serverError:
|
|
errorArray = ['Could not ' + doThisThing + ': %s', I18n._('server error or not responding')];
|
|
break;
|
|
default:
|
|
errorArray = ['Could not ' + doThisThing + ': %s', I18n._('unknown error')];
|
|
break;
|
|
}
|
|
|
|
return errorArray;
|
|
};
|
|
|
|
/**
|
|
* init Uploader
|
|
*
|
|
* @name Uploader.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
// nothing yet
|
|
};
|
|
|
|
return me;
|
|
})();
|
|
|
|
/**
|
|
* (controller) Responsible for encrypting paste and sending it to server.
|
|
*
|
|
* Does upload, encryption is done transparently by Uploader.
|
|
*
|
|
* @name PasteEncrypter
|
|
* @class
|
|
*/
|
|
var PasteEncrypter = (function () {
|
|
var me = {};
|
|
|
|
var requirementsChecked = false;
|
|
|
|
/**
|
|
* called after successful paste upload
|
|
*
|
|
* @name PasteEncrypter.showCreatedPaste
|
|
* @private
|
|
* @function
|
|
* @param {int} status
|
|
* @param {object} data
|
|
*/
|
|
function showCreatedPaste(status, data) {
|
|
Alert.hideLoading();
|
|
|
|
var url = Helper.baseUri() + '?' + data.id + '#' + data.encryptionKey,
|
|
deleteUrl = Helper.baseUri() + '?pasteid=' + data.id + '&deletetoken=' + data.deletetoken;
|
|
|
|
Alert.hideMessages();
|
|
|
|
// show notification
|
|
PasteStatus.createPasteNotification(url, deleteUrl);
|
|
|
|
// show new URL in browser bar
|
|
history.pushState({type: 'newpaste'}, document.title, url);
|
|
|
|
TopNav.showViewButtons();
|
|
TopNav.hideRawButton();
|
|
Editor.hide();
|
|
|
|
// parse and show text
|
|
// (preparation already done in me.sendPaste())
|
|
PasteViewer.run();
|
|
}
|
|
|
|
/**
|
|
* called after successful comment upload
|
|
*
|
|
* @name PasteEncrypter.showUploadedComment
|
|
* @private
|
|
* @function
|
|
* @param {int} status
|
|
* @param {object} data
|
|
*/
|
|
function showUploadedComment(status, data) {
|
|
// show success message
|
|
Alert.showStatus('Comment posted.');
|
|
|
|
// reload paste
|
|
Controller.refreshPaste(function () {
|
|
// highlight sent comment
|
|
DiscussionViewer.highlightComment(data.id, true);
|
|
// reset error handler
|
|
Alert.setCustomHandler(null);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* adds attachments to the Uploader
|
|
*
|
|
* @name PasteEncrypter.encryptAttachments
|
|
* @private
|
|
* @function
|
|
* @param {function} callback - excuted when action is successful
|
|
*/
|
|
function encryptAttachments(callback) {
|
|
var file = AttachmentViewer.getAttachmentData();
|
|
|
|
if (typeof file !== 'undefined' && file !== null) {
|
|
var fileName = AttachmentViewer.getFile().name;
|
|
|
|
Uploader.setData('attachment', file);
|
|
Uploader.setData('attachmentname', fileName);
|
|
|
|
// run callback
|
|
return callback();
|
|
} else if (AttachmentViewer.hasAttachment()) {
|
|
// fall back to cloned part
|
|
var attachment = AttachmentViewer.getAttachment();
|
|
|
|
Uploader.setData('attachment', attachment[0]);
|
|
Uploader.setData('attachmentname', attachment[1]);
|
|
return callback();
|
|
} else {
|
|
// if there are no attachments, this is of course still successful
|
|
return callback();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* send a reply in a discussion
|
|
*
|
|
* @name PasteEncrypter.sendComment
|
|
* @function
|
|
*/
|
|
me.sendComment = function()
|
|
{
|
|
Alert.hideMessages();
|
|
Alert.setCustomHandler(DiscussionViewer.handleNotification);
|
|
|
|
// UI loading state
|
|
TopNav.hideAllButtons();
|
|
Alert.showLoading('Sending comment…', 'cloud-upload');
|
|
|
|
// get data
|
|
var plainText = DiscussionViewer.getReplyMessage(),
|
|
nickname = DiscussionViewer.getReplyNickname(),
|
|
parentid = DiscussionViewer.getReplyCommentId();
|
|
|
|
// do not send if there is no data
|
|
if (plainText.length === 0) {
|
|
// revert loading status…
|
|
Alert.hideLoading();
|
|
Alert.setCustomHandler(null);
|
|
TopNav.showViewButtons();
|
|
return;
|
|
}
|
|
|
|
// prepare Uploader
|
|
Uploader.prepare();
|
|
Uploader.setCryptParameters(Prompt.getPassword(), Model.getPasteKey());
|
|
|
|
// set success/fail functions
|
|
Uploader.setSuccess(showUploadedComment);
|
|
Uploader.setFailure(function (status, data) {
|
|
// revert loading status…
|
|
Alert.hideLoading();
|
|
TopNav.showViewButtons();
|
|
|
|
// show error message
|
|
Alert.showError(
|
|
Uploader.parseUploadError(status, data, 'post comment')
|
|
);
|
|
|
|
// reset error handler
|
|
Alert.setCustomHandler(null);
|
|
});
|
|
|
|
// fill it with unencrypted params
|
|
Uploader.setUnencryptedData('pasteid', Model.getPasteId());
|
|
if (typeof parentid === 'undefined') {
|
|
// if parent id is not set, this is the top-most comment, so use
|
|
// paste id as parent, as the root element of the discussion tree
|
|
Uploader.setUnencryptedData('parentid', Model.getPasteId());
|
|
} else {
|
|
Uploader.setUnencryptedData('parentid', parentid);
|
|
}
|
|
|
|
// encrypt data
|
|
try {
|
|
Uploader.setData('data', plainText);
|
|
} catch (e) {
|
|
Alert.showError(e);
|
|
}
|
|
|
|
if (nickname.length > 0) {
|
|
Uploader.setData('nickname', nickname);
|
|
}
|
|
|
|
Uploader.run();
|
|
};
|
|
|
|
/**
|
|
* sends a new paste to server
|
|
*
|
|
* @name PasteEncrypter.sendPaste
|
|
* @function
|
|
*/
|
|
me.sendPaste = function()
|
|
{
|
|
// hide previous (error) messages
|
|
Controller.hideStatusMessages();
|
|
|
|
// UI loading state
|
|
TopNav.hideAllButtons();
|
|
Alert.showLoading('Sending paste…', 'cloud-upload');
|
|
TopNav.collapseBar();
|
|
|
|
// get data
|
|
var plainText = Editor.getText(),
|
|
format = PasteViewer.getFormat(),
|
|
// the methods may return different values if no files are attached (null, undefined or false)
|
|
files = TopNav.getFileList() || AttachmentViewer.getFile() || AttachmentViewer.hasAttachment();
|
|
|
|
// do not send if there is no data
|
|
if (plainText.length === 0 && !files) {
|
|
// revert loading status…
|
|
Alert.hideLoading();
|
|
TopNav.showCreateButtons();
|
|
return;
|
|
}
|
|
|
|
// prepare Uploader
|
|
Uploader.prepare();
|
|
Uploader.setCryptParameters(TopNav.getPassword());
|
|
|
|
// set success/fail functions
|
|
Uploader.setSuccess(showCreatedPaste);
|
|
Uploader.setFailure(function (status, data) {
|
|
// revert loading status…
|
|
Alert.hideLoading();
|
|
TopNav.showCreateButtons();
|
|
|
|
// show error message
|
|
Alert.showError(
|
|
Uploader.parseUploadError(status, data, 'create paste')
|
|
);
|
|
});
|
|
|
|
// fill it with unencrypted submitted options
|
|
Uploader.setUnencryptedBulkData({
|
|
expire: TopNav.getExpiration(),
|
|
formatter: format,
|
|
burnafterreading: TopNav.getBurnAfterReading() ? 1 : 0,
|
|
opendiscussion: TopNav.getOpenDiscussion() ? 1 : 0
|
|
});
|
|
|
|
// prepare PasteViewer for later preview
|
|
PasteViewer.setText(plainText);
|
|
PasteViewer.setFormat(format);
|
|
|
|
// encrypt cipher data
|
|
try {
|
|
Uploader.setData('data', plainText);
|
|
} catch (e) {
|
|
Alert.showError(e);
|
|
}
|
|
|
|
// encrypt attachments
|
|
encryptAttachments(
|
|
function () {
|
|
// send data
|
|
Uploader.run();
|
|
}
|
|
);
|
|
};
|
|
|
|
/**
|
|
* initialize
|
|
*
|
|
* @name PasteEncrypter.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
// nothing yet
|
|
};
|
|
|
|
return me;
|
|
})();
|
|
|
|
/**
|
|
* (controller) Responsible for decrypting cipherdata and passing data to view.
|
|
*
|
|
* Only decryption, no download.
|
|
*
|
|
* @name PasteDecrypter
|
|
* @class
|
|
*/
|
|
var PasteDecrypter = (function () {
|
|
var me = {};
|
|
|
|
/**
|
|
* decrypt data or prompts for password in case of failure
|
|
*
|
|
* @name PasteDecrypter.decryptOrPromptPassword
|
|
* @private
|
|
* @function
|
|
* @param {string} key
|
|
* @param {string} password - optional, may be an empty string
|
|
* @param {string} cipherdata
|
|
* @throws {string}
|
|
* @return {false|string} false, when unsuccessful or string (decrypted data)
|
|
*/
|
|
function decryptOrPromptPassword(key, password, cipherdata)
|
|
{
|
|
// try decryption without password
|
|
var plaindata = CryptTool.decipher(key, password, cipherdata);
|
|
|
|
// if it fails, request password
|
|
if (plaindata.length === 0 && password.length === 0) {
|
|
// show prompt
|
|
Prompt.requestPassword();
|
|
|
|
// Thus, we cannot do anything yet, we need to wait for the user
|
|
// input.
|
|
return false;
|
|
}
|
|
|
|
// if all tries failed, we can only return an error
|
|
if (plaindata.length === 0) {
|
|
throw 'failed to decipher data';
|
|
}
|
|
|
|
return plaindata;
|
|
}
|
|
|
|
/**
|
|
* decrypt the actual paste text
|
|
*
|
|
* @name PasteDecrypter.decryptPaste
|
|
* @private
|
|
* @function
|
|
* @param {object} paste - paste data in object form
|
|
* @param {string} key
|
|
* @param {string} password
|
|
* @param {bool} ignoreError - ignore decryption errors iof set to true
|
|
* @return {bool} whether action was successful
|
|
* @throws {string}
|
|
*/
|
|
function decryptPaste(paste, key, password, ignoreError)
|
|
{
|
|
var plaintext;
|
|
if (ignoreError === true) {
|
|
plaintext = CryptTool.decipher(key, password, paste.data);
|
|
} else {
|
|
try {
|
|
plaintext = decryptOrPromptPassword(key, password, paste.data);
|
|
} catch (err) {
|
|
throw 'failed to decipher paste text: ' + err;
|
|
}
|
|
if (plaintext === false) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// on success show paste
|
|
PasteViewer.setFormat(paste.meta.formatter);
|
|
PasteViewer.setText(plaintext);
|
|
// trigger to show the text (attachment loaded afterwards)
|
|
PasteViewer.run();
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* decrypts any attachment
|
|
*
|
|
* @name PasteDecrypter.decryptAttachment
|
|
* @private
|
|
* @function
|
|
* @param {object} paste - paste data in object form
|
|
* @param {string} key
|
|
* @param {string} password
|
|
* @return {bool} whether action was successful
|
|
* @throws {string}
|
|
*/
|
|
function decryptAttachment(paste, key, password)
|
|
{
|
|
var attachment, attachmentName;
|
|
|
|
// decrypt attachment
|
|
try {
|
|
attachment = decryptOrPromptPassword(key, password, paste.attachment);
|
|
} catch (err) {
|
|
throw 'failed to decipher attachment: ' + err;
|
|
}
|
|
if (attachment === false) {
|
|
return false;
|
|
}
|
|
|
|
// decrypt attachment name
|
|
if (paste.attachmentname) {
|
|
try {
|
|
attachmentName = decryptOrPromptPassword(key, password, paste.attachmentname);
|
|
} catch (err) {
|
|
throw 'failed to decipher attachment name: ' + err;
|
|
}
|
|
if (attachmentName === false) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
AttachmentViewer.setAttachment(attachment, attachmentName);
|
|
AttachmentViewer.showAttachment();
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* decrypts all comments and shows them
|
|
*
|
|
* @name PasteDecrypter.decryptComments
|
|
* @private
|
|
* @function
|
|
* @param {object} paste - paste data in object form
|
|
* @param {string} key
|
|
* @param {string} password
|
|
* @return {bool} whether action was successful
|
|
*/
|
|
function decryptComments(paste, key, password)
|
|
{
|
|
// remove potentially previous discussion
|
|
DiscussionViewer.prepareNewDiscussion();
|
|
|
|
// iterate over comments
|
|
for (var i = 0; i < paste.comments.length; ++i) {
|
|
var comment = paste.comments[i];
|
|
|
|
DiscussionViewer.addComment(
|
|
comment,
|
|
CryptTool.decipher(key, password, comment.data),
|
|
comment.meta.nickname ? CryptTool.decipher(key, password, comment.meta.nickname) : ''
|
|
);
|
|
}
|
|
|
|
DiscussionViewer.finishDiscussion();
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* show decrypted text in the display area, including discussion (if open)
|
|
*
|
|
* @name PasteDecrypter.run
|
|
* @function
|
|
* @param {Object} [paste] - (optional) object including comments to display (items = array with keys ('data','meta'))
|
|
*/
|
|
me.run = function(paste)
|
|
{
|
|
Alert.hideMessages();
|
|
Alert.showLoading('Decrypting paste…', 'cloud-download');
|
|
|
|
if (typeof paste === 'undefined') {
|
|
// get cipher data and wait until it is available
|
|
Model.getPasteData(me.run);
|
|
return;
|
|
}
|
|
|
|
var key = Model.getPasteKey(),
|
|
password = Prompt.getPassword();
|
|
|
|
// try to decrypt the paste
|
|
try {
|
|
// decrypt attachments
|
|
if (paste.attachment) {
|
|
if (AttachmentViewer.hasAttachmentData()) {
|
|
// try to decrypt paste and if it fails (because the password is
|
|
// missing) return to let JS continue and wait for user
|
|
if (!decryptAttachment(paste, key, password)) {
|
|
return;
|
|
}
|
|
}
|
|
// ignore empty paste, as this is allowed when pasting attachments
|
|
decryptPaste(paste, key, password, true);
|
|
} else {
|
|
if (decryptPaste(paste, key, password) === false) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// shows the remaining time (until) deletion
|
|
PasteStatus.showRemainingTime(paste.meta);
|
|
|
|
// if the discussion is opened on this paste, display it
|
|
if (paste.meta.opendiscussion) {
|
|
decryptComments(paste, key, password);
|
|
}
|
|
|
|
Alert.hideLoading();
|
|
TopNav.showViewButtons();
|
|
} catch(err) {
|
|
Alert.hideLoading();
|
|
|
|
// log and show error
|
|
console.error(err);
|
|
Alert.showError('Could not decrypt data. Did you enter a wrong password? Retry with the button at the top.');
|
|
// reset password, so it can be re-entered and sow retry button
|
|
Prompt.reset();
|
|
TopNav.setRetryCallback(function () {
|
|
TopNav.hideRetryButton();
|
|
|
|
me.run(paste);
|
|
});
|
|
TopNav.showRetryButton();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* initialize
|
|
*
|
|
* @name PasteDecrypter.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
// nothing yet
|
|
};
|
|
|
|
return me;
|
|
})();
|
|
|
|
/**
|
|
* (controller) main PrivateBin logic
|
|
*
|
|
* @name Controller
|
|
* @param {object} window
|
|
* @param {object} document
|
|
* @class
|
|
*/
|
|
var Controller = (function (window, document) {
|
|
var me = {};
|
|
|
|
/**
|
|
* hides all status messages no matter which module showed them
|
|
*
|
|
* @name Controller.hideStatusMessages
|
|
* @function
|
|
*/
|
|
me.hideStatusMessages = function()
|
|
{
|
|
PasteStatus.hideMessages();
|
|
Alert.hideMessages();
|
|
};
|
|
|
|
/**
|
|
* creates a new paste
|
|
*
|
|
* @name Controller.newPaste
|
|
* @function
|
|
*/
|
|
me.newPaste = function()
|
|
{
|
|
// Important: This *must not* run Alert.hideMessages() as previous
|
|
// errors from viewing a paste should be shown.
|
|
TopNav.hideAllButtons();
|
|
Alert.showLoading('Preparing new paste…', 'time');
|
|
|
|
PasteStatus.hideMessages();
|
|
PasteViewer.hide();
|
|
Editor.resetInput();
|
|
Editor.show();
|
|
Editor.focusInput();
|
|
AttachmentViewer.removeAttachment();
|
|
|
|
TopNav.showCreateButtons();
|
|
Alert.hideLoading();
|
|
};
|
|
|
|
/**
|
|
* shows how we much we love bots that execute JS ;)
|
|
*
|
|
* @name Controller.showBadBotMessage
|
|
* @function
|
|
*/
|
|
me.showBadBotMessage = function()
|
|
{
|
|
TopNav.hideAllButtons();
|
|
Alert.showError('I love you too, bot…');
|
|
}
|
|
|
|
/**
|
|
* shows the loaded paste
|
|
*
|
|
* @name Controller.showPaste
|
|
* @function
|
|
*/
|
|
me.showPaste = function()
|
|
{
|
|
try {
|
|
Model.getPasteKey();
|
|
} catch (err) {
|
|
console.error(err);
|
|
|
|
// missing decryption key (or paste ID) in URL?
|
|
if (window.location.hash.length === 0) {
|
|
Alert.showError('Cannot decrypt paste: Decryption key missing in URL (Did you use a redirector or an URL shortener which strips part of the URL?)');
|
|
return;
|
|
}
|
|
}
|
|
|
|
// show proper elements on screen
|
|
PasteDecrypter.run();
|
|
};
|
|
|
|
/**
|
|
* refreshes the loaded paste to show potential new data
|
|
*
|
|
* @name Controller.refreshPaste
|
|
* @function
|
|
* @param {function} callback
|
|
*/
|
|
me.refreshPaste = function(callback)
|
|
{
|
|
// save window position to restore it later
|
|
var orgPosition = $(window).scrollTop();
|
|
|
|
Model.getPasteData(function (data) {
|
|
Uploader.prepare();
|
|
Uploader.setUrl(Helper.baseUri() + '?' + Model.getPasteId());
|
|
|
|
Uploader.setFailure(function (status, data) {
|
|
// revert loading status…
|
|
Alert.hideLoading();
|
|
TopNav.showViewButtons();
|
|
|
|
// show error message
|
|
Alert.showError(
|
|
Uploader.parseUploadError(status, data, 'refresh display')
|
|
);
|
|
});
|
|
Uploader.setSuccess(function (status, data) {
|
|
PasteDecrypter.run(data);
|
|
|
|
// restore position
|
|
window.scrollTo(0, orgPosition);
|
|
|
|
PasteDecrypter.run(data);
|
|
|
|
// NOTE: could create problems as callback may be called
|
|
// asyncronously if PasteDecrypter e.g. needs to wait for a
|
|
// password being entered
|
|
callback();
|
|
});
|
|
Uploader.run();
|
|
}, false); // this false is important as it circumvents the cache
|
|
}
|
|
|
|
/**
|
|
* clone the current paste
|
|
*
|
|
* @name Controller.clonePaste
|
|
* @function
|
|
*/
|
|
me.clonePaste = function()
|
|
{
|
|
TopNav.collapseBar();
|
|
TopNav.hideAllButtons();
|
|
|
|
// hide messages from previous paste
|
|
me.hideStatusMessages();
|
|
|
|
// erase the id and the key in url
|
|
history.pushState({type: 'clone'}, document.title, Helper.baseUri());
|
|
|
|
if (AttachmentViewer.hasAttachment()) {
|
|
AttachmentViewer.moveAttachmentTo(
|
|
TopNav.getCustomAttachment(),
|
|
'Cloned: \'%s\''
|
|
);
|
|
TopNav.hideFileSelector();
|
|
AttachmentViewer.hideAttachment();
|
|
// NOTE: it also looks nice without removing the attachment
|
|
// but for a consistent display we remove it…
|
|
AttachmentViewer.hideAttachmentPreview();
|
|
TopNav.showCustomAttachment();
|
|
|
|
// show another status message to make the user aware that the
|
|
// file was cloned too!
|
|
Alert.showStatus(
|
|
[
|
|
'The cloned file \'%s\' was attached to this paste.',
|
|
AttachmentViewer.getAttachment()[1]
|
|
],
|
|
'copy'
|
|
);
|
|
}
|
|
|
|
Editor.setText(PasteViewer.getText());
|
|
PasteViewer.hide();
|
|
Editor.show();
|
|
|
|
TopNav.showCreateButtons();
|
|
};
|
|
|
|
/**
|
|
* application start
|
|
*
|
|
* @name Controller.init
|
|
* @function
|
|
*/
|
|
me.init = function()
|
|
{
|
|
// first load translations
|
|
I18n.loadTranslations();
|
|
|
|
DOMPurify.setConfig({SAFE_FOR_JQUERY: true});
|
|
|
|
// initialize other modules/"classes"
|
|
Alert.init();
|
|
Model.init();
|
|
AttachmentViewer.init();
|
|
DiscussionViewer.init();
|
|
Editor.init();
|
|
PasteDecrypter.init();
|
|
PasteEncrypter.init();
|
|
PasteStatus.init();
|
|
PasteViewer.init();
|
|
Prompt.init();
|
|
TopNav.init();
|
|
UiHelper.init();
|
|
Uploader.init();
|
|
|
|
// check whether existing paste needs to be shown
|
|
try {
|
|
Model.getPasteId();
|
|
} catch (e) {
|
|
// otherwise create a new paste
|
|
return me.newPaste();
|
|
}
|
|
|
|
// if delete token is passed (i.e. paste has been deleted by this access)
|
|
// there is no more stuf we need to do
|
|
if (Model.hasDeleteToken()) {
|
|
return;
|
|
}
|
|
|
|
// prevent bots from viewing a paste and potentially deleting data
|
|
// when burn-after-reading is set
|
|
// see https://github.com/elrido/ZeroBin/issues/11
|
|
if (Helper.isBadBot()) {
|
|
return me.showBadBotMessage();
|
|
}
|
|
|
|
// display an existing paste
|
|
return me.showPaste();
|
|
}
|
|
|
|
return me;
|
|
})(window, document);
|
|
|
|
return {
|
|
Helper: Helper,
|
|
I18n: I18n,
|
|
CryptTool: CryptTool,
|
|
Model: Model,
|
|
UiHelper: UiHelper,
|
|
Alert: Alert,
|
|
PasteStatus: PasteStatus,
|
|
Prompt: Prompt,
|
|
Editor: Editor,
|
|
PasteViewer: PasteViewer,
|
|
AttachmentViewer: AttachmentViewer,
|
|
DiscussionViewer: DiscussionViewer,
|
|
TopNav: TopNav,
|
|
Uploader: Uploader,
|
|
PasteEncrypter: PasteEncrypter,
|
|
PasteDecrypter: PasteDecrypter,
|
|
Controller: Controller
|
|
};
|
|
})(jQuery, sjcl, RawDeflate);
|