mirror of
https://github.com/Tygs/0bin.git
synced 2023-08-10 21:13:00 +03:00
682 lines
20 KiB
JavaScript
682 lines
20 KiB
JavaScript
/*global sjcl:true, jQuery:true, $:true, lzw:true, zerobin:true, ZeroClipboard:true, vizhash:true, prettyPrint:true, confirm:true */
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;(function(){
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"use strict";
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/* Start random number generator seeding ASAP */
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sjcl.random.startCollectors();
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/* Ensure jquery use cache for ajax requests */
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$.ajaxSetup({ cache: true });
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/** Create a function that create inline callbacks.
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We use it to create callbacks for onliners with static arguments
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E.G:
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$('stuff').hide(function()(console.log(1, 2, 3)))
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Becomes:
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$('stuff').hide(mkcb(console.log, 1, 2, 3))
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*/
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function mkcb(func){
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var args = arguments;
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return function(){
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return func.apply(func, Array.prototype.slice.call(args, 1));
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};
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}
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/***************************
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**** 0bin utilities ***
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****************************/
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window.zerobin = {
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/** Base64 + compress + encrypt, with callbacks before each operation,
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and all of them are executed in a timed continuation to give
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a change to the UI to respond.
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*/
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version: '0.1',
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encrypt: function(key, content, toBase64Callback,
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compressCallback, encryptCallback, doneCallback) {
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setTimeout (function(){
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content = sjcl.codec.utf8String.toBits(content);
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if (toBase64Callback) {toBase64Callback();}
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setTimeout(function(){
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content = sjcl.codec.base64.fromBits(content);
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if (compressCallback) {compressCallback();}
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setTimeout(function(){
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content = lzw.compress(content);
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if (encryptCallback) {encryptCallback();}
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setTimeout(function(){
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content = sjcl.encrypt(key, content);
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if (doneCallback) {doneCallback(content);}
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}, 250);
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}, 250);
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}, 250);
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}, 250);
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},
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/** Base64 decoding + uncompress + decrypt, with callbacks before each operation,
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and all of them are executed in a timed continuation to give
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a change to the UI to respond.
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This is where using a library to fake synchronicity could start to be
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useful, this code is starting be difficult to read. If anyone read this
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and got a suggestion, by all means, speak your mind.
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*/
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decrypt: function(key, content, errorCallback, uncompressCallback,
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fromBase64Callback, toStringCallback, doneCallback) {
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/* Decrypt */
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setTimeout(function(){
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try {
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content = sjcl.decrypt(key, content);
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if (uncompressCallback) {uncompressCallback();}
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/* Decompress */
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setTimeout(function(){
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try {
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content = lzw.decompress(content);
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if (fromBase64Callback) {fromBase64Callback();}
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/* From base 64 to bits */
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setTimeout(function(){
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try {
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content = sjcl.codec.base64.toBits(content);
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if (toStringCallback) {toStringCallback();}
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/* From bits to string */
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setTimeout(function(){
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try {
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content = sjcl.codec.utf8String.fromBits(content);
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if (doneCallback) {doneCallback(content);}
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} catch (err) {
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errorCallback(err);
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}
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}, 250); /* "End of from bits to string" */
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} catch (err) {
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errorCallback(err);
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}
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}, 250); /* End of "from base 64 to bits" */
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} catch (err) {
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errorCallback(err);
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}
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}, 250); /* End of "decompress" */
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} catch (err) {
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errorCallback(err);
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}
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}, 250); /* End of "decrypt" */
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},
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/** Create a random base64 string long enought to be suitable as
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an encryption key */
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makeKey: function() {
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return sjcl.codec.base64.fromBits(sjcl.random.randomWords(8, 0), 0);
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},
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getFormatedDate: function(date){
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date = date || new Date();
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return ((date.getMonth() +1 ) + '-' +
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date.getDate() + '-' + date.getFullYear());
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},
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getFormatedTime: function(date){
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date = date || new Date();
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var h = date.getHours();
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var m = date.getMinutes();
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var s = date.getSeconds();
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if (h < 10) {h = "0" + h;}
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if (m < 10) {m = "0" + m;}
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if (s < 10) {s = "0" + s;}
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return h + ":" + m + ":" + s;
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},
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numOrdA: function(a, b){
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return (a-b);
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},
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/** Return a reverse sorted list of all the keys in local storage that
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are prefixed with with the passed version (default being this lib
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version) */
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getLocalStorageKeys: function(version){
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version = 'zerobinV' + (version || zerobin.version);
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var keys = [];
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for (var key in localStorage){
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if (key.indexOf(version) !== -1){
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keys.push(key);
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}
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}
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keys.sort();
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keys.reverse();
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return keys;
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},
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/** Get a tinyurl using JSONP */
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getTinyURL: function(longURL, success) {
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var api = 'http://json-tinyurl.appspot.com/?url=';
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$.getJSON(api + encodeURIComponent(longURL) + '&callback=?', function(data){
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success(data.tinyurl);
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});
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},
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/** Check for browser support of the named featured. Store the result
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and add a class to the html tag with the result */
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support: {
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localStorage: (function(){
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var val = !!(localStorage);
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$('html').addClass((val ? '' : 'no-') + 'local-storage');
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return val;
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})(),
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history: (function(){
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var val = !!(window.history && history.pushState);
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$('html').addClass((val ? '' : 'no-') + 'history');
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return val;
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})(),
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fileUpload: (function(){
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var w = window;
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var val = !!(w.File && w.FileReader && w.FileList && w.Blob);
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$('html').addClass((val ? '' : 'no-') + 'file-upload');
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return val;
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})()
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},
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/** Store the paste of a URL in local storate, with a storage format
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version prefix and the paste date as the key */
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storePaste: function(url, date){
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date = date || new Date();
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date = (date.getFullYear() + '-' + (date.getMonth() + 1) + '-' +
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date.getDate() + ' ' + zerobin.getFormatedTime(date));
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var keys = zerobin.getLocalStorageKeys();
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if (localStorage.length > 19) {
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void localStorage.removeItem(keys[19]);
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}
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localStorage.setItem('zerobinV' + zerobin.version + "#" + date, url);
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},
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/** Return a list of the previous paste url with the creation date
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If the paste is from today, date format should be "at hh:ss",
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else it should be "the mm-dd-yyy"
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*/
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getPreviousPastes: function(){
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var pastes = [],
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keys = zerobin.getLocalStorageKeys(),
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today = zerobin.getFormatedDate();
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$.each(keys, function(i, key){
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var pasteDateTime = key.replace(/^[^#]+#/, '');
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var displayDate = pasteDateTime.match(/^(\d+)-(\d+)-(\d+)\s/);
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displayDate = displayDate[2] + '-' + displayDate[3] + '-' + displayDate[1];
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var prefix = 'the ';
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if (displayDate === today){
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displayDate = pasteDateTime.split(' ')[1];
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prefix = 'at ';
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}
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pastes.push({displayDate: displayDate, prefix: prefix,
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link: localStorage.getItem(key)});
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});
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return pastes;
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},
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/** Return an link object with the URL as href so you can extract host,
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protocol, hash, etc.
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This function use a closure to store a <div> parent for the <a>
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because IE requires the link be processed by it's HTML parser
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for the URL to be parsed. */
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parseUrl: (function(){
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var div = document.createElement('div');
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div.innerHTML = "<a></a>";
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return function(url){
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div.firstChild.href = url;
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div.innerHTML = div.innerHTML;
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return div.firstChild;
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};
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})(),
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getPasteId: function(url){
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var loc = url ? zerobin.parseUrl(url) : window.location;
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return loc.pathname.replace(/\/|paste/g, '').replace(/\?.*$/, '');
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},
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getPasteKey: function(url){
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var loc = url ? zerobin.parseUrl(url) : window.location;
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return loc.hash.replace('#', '').replace(/\?.*$/, '');
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},
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/** Return the paste content stripted from any code coloration */
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getPasteContent: function(){
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var copy = '' ;
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$("#paste-content li").each(function(index) {
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copy = copy + $(this).text() + '\n';
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});
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return copy;
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},
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/** Return an approximate estimate the number of bytes in a text */
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count: function(text, options) {
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// Set option defaults
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var crlf = /(\r?\n|\r)/g;
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var whitespace = /(\r?\n|\r|\s+)/g;
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options = options || {};
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options.lineBreaks = options.lineBreaks || 1;
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var length = text.length,
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nonAscii = length - text.replace(/[\u0100-\uFFFF]/g, '').length,
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lineBreaks = length - text.replace(crlf, '').length;
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return length + nonAscii + Math.max(0, options.lineBreaks * (lineBreaks - 1));
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},
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/** Create a message, style it and insert it in the alert box */
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message: function(type, message, title, flush, callback) {
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$(window).scrollTop(0);
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if (flush) {$('.alert-'+type).remove();}
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var $message = $('#alert-template').clone().attr('id', null)
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.addClass('alert alert-' + type);
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$('.message', $message).html(message);
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if (title) {$('.title', $message).html(title);}
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else {$('.title', $message).remove();}
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$message.prependTo($('#main')).show('fadeUp', callback);
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},
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/** Return a progress bar object */
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progressBar: function(selector){
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var $container = $(selector);
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var bar = {container: $container, elem: $container.find('.bar')};
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bar.set = function(text, rate){bar.elem.text(text).css('width', rate);};
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return bar;
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}
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};
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/***************************
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**** On document ready ***
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****************************/
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$(function(){
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/**
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On the create paste page:
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On click on the send button, compress and encrypt data before
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posting it using ajax. Then redirect to the address of the
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newly created paste, adding the key in the hash.
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*/
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$('.btn-primary').live("click", function(e){
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e.preventDefault();
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var paste = $('textarea').val();
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var sizebytes = zerobin.count($('#content').val());
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var oversized = sizebytes > zerobin.max_size;
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var readableFsize = Math.round(sizebytes / 1024);
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var readableMaxsize = Math.round(zerobin.max_size / 1024);
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if (oversized){
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zerobin.message('error',
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('Your file is <strong class="file-size">' + readableFsize +
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'</strong>KB. You have reached the maximum size limit of ' +
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readableMaxsize + 'KB.'),
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'Warning!', true);
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}
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if (!oversized && paste.trim()) {
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var $form = $('input, textarea, select, button').prop('disabled', true);
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// set up progress bar
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var bar = zerobin.progressBar('form.well .progress');
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bar.container.show();
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bar.set('Converting paste to bits...', '25%');
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/* Encode, compress, encrypt and send the paste then redirect the user
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to the new paste. We ensure a loading animation is updated
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during the process by passing callbacks.
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*/
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try {
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var expiration = $('#expiration').val();
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var key = zerobin.makeKey();
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zerobin.encrypt(key, paste,
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mkcb(bar.set, 'Encoding to base64...', '45%'),
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mkcb(bar.set, 'Compressing...', '65%'),
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mkcb(bar.set, 'Encrypting...', '85%'),
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/* This block deal with sending the data, redirection or error handling */
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function(content){
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bar.set('Sending...', '95%');
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var data = {content: content, expiration: expiration};
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$.post('/paste/create', data)
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.error(function(error) {
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$form.prop('disabled', false);
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bar.container.hide();
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zerobin.message(
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'error',
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'Paste could not be saved. Please try again later.',
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'Error'
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);
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})
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.success(function(data) {
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bar.set('Redirecting to new paste...', '100%');
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if (data.status === 'error') {
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zerobin.message('error', data.message, 'Error');
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$form.prop('disabled', false);
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bar.container.hide();
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} else {
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var paste_url = '/paste/' + data.paste + '#' + key;
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if (zerobin.support.localStorage){
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zerobin.storePaste(paste_url);
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}
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window.location = (paste_url);
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}
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});
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}
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);
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} catch (err) {
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$form.prop('disabled', false);
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bar.container.hide();
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zerobin.message('error', 'Paste could not be encrypted. Aborting.',
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'Error');
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}
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}
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});
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/**
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DECRYPTION:
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On the display paste page, decrypt and decompress the paste content,
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add syntax coloration then setup the copy to clipboard button.
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Also calculate and set the paste visual hash.
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*/
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var content = $('#paste-content').text().trim();
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var key = zerobin.getPasteKey();
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var error = false;
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if (content && key) {
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/* Load the lib for visual canvas, create one from the paste id and
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insert it */
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$.getScript("/static/js/vizhash.min.js").done(function(script, textStatus) {
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if (vizhash.supportCanvas) {
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var vhash = vizhash.canvasHash(zerobin.getPasteId(), 24, 24);
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$('<a class="vhash" href="#"></a>').click(function(e){
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e.preventDefault();
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if(confirm("This picture is unique to your paste so you can identify" +
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" it quickly. \n\n Do you want to know more about this?")){
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window.open("http://is.gd/IJaMRG", "_blank");
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}
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}).prependTo('.lnk-option').append(vhash.canvas);
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}
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});
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var $form = $('input, textarea, select, button').prop('disabled', true);
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var bar = zerobin.progressBar('.well form .progress');
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bar.container.show();
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bar.set('Decrypting paste...', '25%');
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zerobin.decrypt(key, content,
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/* On error*/
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function(){
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bar.container.hide();
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zerobin.message('error', 'Could not decrypt data (Wrong key ?)', 'Error');
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},
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/* Update progress bar */
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mkcb(bar.set, 'Decompressing...', '45%'),
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mkcb(bar.set, 'Base64 decoding...', '65%'),
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mkcb(bar.set, 'From bits to string...', '85%'),
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/* When done */
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function(content){
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/* Decrypted content goes back to initial container*/
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$('#paste-content').text(content);
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content = '';
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bar.set('Code coloration...', '95%');
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/* Add a continuation to let the UI redraw */
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setTimeout(function(){
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/* Setup flash clipboard button */
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ZeroClipboard.setMoviePath('/static/js/ZeroClipboard.swf');
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var clip = new ZeroClipboard.Client();
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// Callback to reposition the clibpboad flash animation overlay
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var reposition = function(){clip.reposition();};
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clip.addEventListener('mouseup', function(){
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$('#clip-button').text('Copying paste...');
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clip.setText(zerobin.getPasteContent());
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});
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clip.addEventListener('complete', function(){
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$('#clip-button').text('Copy to clipboard');
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zerobin.message('info', 'The paste is now in your clipboard', '',
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true, reposition);
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});
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clip.glue('clip-button');
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window.onresize = reposition;
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/* Setup link to get the paste short url*/
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$('#short-url').click(function(e) {
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e.preventDefault();
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$('#short-url').text('Loading short url...');
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zerobin.getTinyURL(window.location.toString(), function(tinyurl){
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clip.setText(tinyurl);
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$('#copy-success').hide();
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zerobin.message('success',
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'<a href="' + tinyurl + '">' + tinyurl + '</a>',
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'Short url', true, reposition
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);
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$('#short-url').text('Get short url');
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});
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});
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/* Remap the message close handler to include the clipboard
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flash reposition */
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$(".close").off().live('click', function(e){
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e.preventDefault();
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$(this).parent().fadeOut(reposition);
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});
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/** Syntaxic coloration */
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prettyPrint();
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/* Class to switch to paste content style with coloration done */
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$('#paste-content').addClass('done');
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/* Display result */
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bar.set('Done', '100%');
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bar.container.hide();
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$form.prop('disabled', false);
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}, 250);
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}
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);
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} /* End of "DECRYPTION" */
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/* Synchronize expiration select boxes value */
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$('.paste-option select').live('change', function(){
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var $this = $(this);
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$this.val($this.val());
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});
|
|
|
|
|
|
/* Resize Textarea according to content */
|
|
$('#content').elastic();
|
|
|
|
|
|
/* Display bottom paste option buttons when needed */
|
|
$('#content').live('keyup change', function(){
|
|
if($('#content').height() < 400 ){
|
|
$('.paste-option.down').remove();
|
|
}
|
|
else {
|
|
|
|
if ($('.paste-option').length === 1) {
|
|
$('.paste-option').clone().addClass('down').appendTo('form.well');
|
|
}
|
|
}
|
|
|
|
});
|
|
|
|
|
|
/* Display previous pastes */
|
|
if (zerobin.support.localStorage){
|
|
|
|
var $container = $('.previous-pastes'),
|
|
pastes = zerobin.getPreviousPastes();
|
|
|
|
if (pastes.length){
|
|
|
|
$.getScript("/static/js/vizhash.min.js").done(function(script, textStatus) {
|
|
|
|
$container.find('.item').remove();
|
|
$.each(zerobin.getPreviousPastes(), function(i, paste){
|
|
|
|
var $li = $('<li class="item"></li>').appendTo($container);
|
|
var $link = $('<a></a>').attr('href', paste.link)
|
|
.text(paste.prefix + paste.displayDate)
|
|
.appendTo($li);
|
|
|
|
if (vizhash.supportCanvas) {
|
|
var pasteId = zerobin.getPasteId(paste.link);
|
|
var vhash = vizhash.canvasHash(pasteId, 24, 24).canvas;
|
|
$link.prepend($(vhash).addClass('vhash'));
|
|
}
|
|
|
|
// hightlite the current link and make sure clicking the link
|
|
// does redirect to the page
|
|
if (paste.link.replace(/#[^#]+/, '') === window.location.pathname){
|
|
$li.addClass('active');
|
|
$link.click(function(){window.location.reload();});
|
|
}
|
|
|
|
});
|
|
|
|
});
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/* Event handler for "clone paste" button */
|
|
$('.btn-clone').click(function(e){
|
|
e.preventDefault();
|
|
$('.submit-form').show();
|
|
$('.paste-form').hide();
|
|
$('#content').val(zerobin.getPasteContent()).trigger('change');
|
|
});
|
|
|
|
$('.clone .btn-danger').click(function(e){
|
|
e.preventDefault();
|
|
$('.submit-form').hide();
|
|
$('.paste-form').show();
|
|
});
|
|
|
|
|
|
/* Upload file using HTML5 File API */
|
|
if (zerobin.support.fileUpload) {
|
|
|
|
var upload = function(files) {
|
|
var reader = new FileReader();
|
|
reader.onload = function(event) {
|
|
$('#content').val(event.target.result).trigger('change');
|
|
};
|
|
reader.readAsText(files[0]);
|
|
};
|
|
|
|
var $buttonOverlay = $('#file-upload');
|
|
var $button = $('.btn-upload');
|
|
|
|
try {
|
|
$button.val('Uploading...');
|
|
$button.prop('disabled', true);
|
|
$buttonOverlay.change(function(){upload(this.files);});
|
|
}
|
|
catch (e) {
|
|
zerobin.message('error', 'Could no upload the file', 'Error');
|
|
$button.val('Upload File');
|
|
$button.prop('disabled', false);
|
|
}
|
|
|
|
$button.prop('disabled', false);
|
|
$button.val('Upload File');
|
|
$buttonOverlay.mouseover(mkcb($(this).css, 'cursor', 'pointer'));
|
|
}
|
|
|
|
/* Alerts */
|
|
|
|
$(".close").live('click', function(e){
|
|
e.preventDefault();
|
|
$(this).parent().fadeOut();
|
|
});
|
|
|
|
|
|
/* Parse obfuscaded emails and make them usable */
|
|
$('.email-link').each(function(i, elem){
|
|
var $obfuscatedEmail = $(this);
|
|
var address = $obfuscatedEmail.attr('title').replace('__AT__', '@');
|
|
var text = $obfuscatedEmail.text().replace('__AT__', '@');
|
|
var $plainTextEmail = $('<a href="mailto:' + address + '">'+ text +'</a>');
|
|
$obfuscatedEmail.replaceWith($plainTextEmail);
|
|
|
|
});
|
|
|
|
|
|
|
|
}); /* End of "document ready" jquery callback */
|
|
|
|
})(); /* End of self executing function */ |