mirror of
https://github.com/Tygs/0bin.git
synced 2023-08-10 21:13:00 +03:00
864 lines
25 KiB
JavaScript
864 lines
25 KiB
JavaScript
/*global sjcl:true, jQuery:true, lzw:true, zerobin:true, prettyPrint:true */
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/*
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This file has been migrated away from jQuery, to Vue. Because of the way
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the code base used to be, a lot of the operations are still using imperative
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DOM manipulation instead of the Vue declarative style. We haven't had the
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time to rewrite it completly and it's a bit of a mixed bag at the moment.
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*/
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/* Start random number generator seeding ASAP */
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sjcl.random.startCollectors();
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// Vue template syntax conflicts with bottle template syntax
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Vue.options.delimiters = ['{%', '%}'];
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// Force focus for textarea (firefox hack)
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setTimeout(function () {
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document.getElementById('content').focus()
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}, 100)
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// Parse obfuscaded emails and make them usable
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const menu = new Vue({
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el: "#menu-top",
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methods: {
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}
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})
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const app = new Vue({
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el: '#app',
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data: {
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previousPastes: [],
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downloadLink: {},
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displayBottomToolBar: false,
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openPreviousPastesMenu: false,
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isUploading: false,
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currentPaste: {
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ownerKey: '',
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id: '',
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type: '',
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},
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newPaste: {
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expiration: '1_day',
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content: '',
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},
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messages: [],
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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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clipboard: !!(isSecureContext && navigator.clipboard && navigator.clipboard.writeText),
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localStorage: (function () {
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var val = !!(localStorage);
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document.querySelector('html').classList.add((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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document.querySelector('html').classList.add((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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document.querySelector('html').classList.add((val ? '' : 'no-') + 'file-upload');
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return val;
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})()
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},
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isLoading: false
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},
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methods: {
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formatEmail: (email) => {
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return "mailto:" + email.replace('__AT__', '@');
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},
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forceLoad: (link) => {
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window.location = link;
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window.location.reload();
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},
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handleClone: () => {
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document.querySelector('.submit-form').style.display = "inherit";
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document.querySelector('.paste-form').style.display = "none";
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let content = document.getElementById('content');
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content.value = zerobin.getPasteContent();
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content.dispatchEvent(new Event('change'));
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},
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handleCancelClone: () => {
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document.querySelector('.submit-form').style.display = "none";
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document.querySelector('.paste-form').style.display = "inherit";
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},
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handleUpload: (files) => {
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try {
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app.isUploading = true;
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zerobin.upload(files);
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} catch (e) {
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zerobin.message('danger', 'Could no upload the file', 'Error');
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}
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app.isUploading = false;
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},
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handleForceColoration: (e) => {
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let content = document.getElementById('paste-content');
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content.classList.add('linenums');
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e.target.innerHTML = 'Applying coloration';
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prettyPrint();
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e.target.parentNode.remove()
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},
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handleSendByEmail: (e) => {
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window.location = 'mailto:friend@example.com?body=' + window.location.toString();
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},
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handleDeletePaste: () => {
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if (window.confirm("Delete this paste?")) {
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app.isLoading = true;
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bar.set('Deleting paste...', '50%');
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fetch('/paste/' + app.currentPaste.id, {
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method: "DELETE",
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body: new URLSearchParams({
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"owner_key": app.currentPaste.ownerKey
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})
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}).then(function (response) {
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if (response.ok) {
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app.forceLoad("/");
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} else {
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form.forEach((node) => node.disabled = false);
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app.isLoading = false
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zerobin.message(
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'danger',
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'Paste could not be deleted. Please try again later.',
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'Error');
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}
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app.isLoading = false;
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}).catch(function (error) {
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zerobin.message(
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'danger',
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'Paste could not be delete. Please try again later.',
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'Error');
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app.isLoading = false;
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});
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}
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},
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copyToClipboard: () => {
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var pasteContent = zerobin.getPasteContent();
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let promise = navigator.clipboard.writeText(pasteContent);
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promise.then(function () {
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zerobin.message('primary', 'The paste is now in your clipboard', '', true);
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}, function (err) {
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zerobin.message('danger', 'The paste could not be copied', '', true);
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});
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},
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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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encryptAndSendPaste: (e) => {
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var paste = document.querySelector('textarea').value;
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if (paste.trim()) {
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var form = document.querySelectorAll('input, textarea, select, button');
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form.forEach((node) => node.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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app.isLoading = true;
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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 key = zerobin.makeKey(256);
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zerobin.encrypt(key, paste,
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() => bar.set('Encoding to base64...', '45%'),
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() => bar.set('Compressing...', '65%'),
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() => bar.set('Encrypting...', '85%'),
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/* This block deals 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 = {
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content: content,
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expiration: app.newPaste.expiration
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};
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var sizebytes = zerobin.count(JSON.stringify(data));
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var oversized = sizebytes > zerobin.max_size; // 100kb - the others header information
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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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app.isLoading = false
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form.forEach((node) => node.disabled = false);
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zerobin.message('danger', ('The encrypted file was <strong class="file-size">' + readableFsize +
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'</strong>KB. You have reached the maximum size limit of ' + readableMaxsize + 'KB.'),
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'Warning!', true);
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return;
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}
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fetch('/paste/create', {
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method: "POST",
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body: new URLSearchParams(data)
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}).then(function (response) {
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if (response.ok) {
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bar.set('Redirecting to new paste...', '100%');
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response.json().then((data) => {
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if (data.status === 'error') {
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zerobin.message('danger', data.message, 'Error');
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form.forEach((node) => node.disabled = false);
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app.isLoading = false
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} else {
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if (app.support.localStorage) {
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zerobin.storePaste('/paste/' + data.paste + "?owner_key=" + data.owner_key + '#' + key);
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}
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window.location = ('/paste/' + data.paste + '#' + key);
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}
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})
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} else {
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form.forEach((node) => node.disabled = false);
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app.isLoading = false
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zerobin.message(
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'danger',
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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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}).catch(function (error) {
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form.forEach((node) => node.disabled = false);
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app.isLoading = false
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zerobin.message(
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'danger',
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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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} catch (err) {
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form.forEach((node) => node.disabled = false);
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app.isLoading = false
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zerobin.message('danger', '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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})
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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: '0.1.1',
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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) {
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toBase64Callback();
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}
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setTimeout(function () {
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content = sjcl.codec.base64.fromBits(content);
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if (compressCallback) {
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compressCallback();
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}
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setTimeout(function () {
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// content = lzw.compress(content); // Create a bug with JPG
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if (encryptCallback) {
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encryptCallback();
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}
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setTimeout(function () {
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try {
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content = sjcl.encrypt(key, content);
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} catch (e) {
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document.querySelectorAll('input, textarea, select, button').forEach((node) => node.disabled = true);
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app.isLoading = false;
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zerobin.message('danger', 'Paste could not be encrypted. Aborting.',
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'Error');
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}
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if (doneCallback) {
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doneCallback(content);
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}
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}, 50);
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}, 50);
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}, 50);
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}, 50);
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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) {
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uncompressCallback();
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}
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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) {
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fromBase64Callback();
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}
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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) {
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toStringCallback();
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}
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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) {
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doneCallback(content);
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}
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} catch (err) {
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errorCallback(err);
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}
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}, 50); /* "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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}, 50); /* 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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}, 50); /* End of "decompress" */
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} catch (err) {
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errorCallback(err);
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}
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}, 50); /* End of "decrypt" */
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},
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/** Create a random base64-like string long enought to be suitable as
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an encryption key */
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makeKey: function (entropy) {
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entropy = Math.ceil(entropy / 6) * 6; /* non-6-multiple produces same-length base64 */
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var key = sjcl.bitArray.clamp(
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sjcl.random.randomWords(Math.ceil(entropy / 32), 0), entropy);
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return sjcl.codec.base64.fromBits(key, 0).replace(/\=+$/, '').replace(/\//, '-');
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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) + '-' + 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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m = date.getMinutes(),
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s = date.getSeconds();
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if (h < 10) {
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h = "0" + h;
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}
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if (m < 10) {
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m = "0" + m;
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}
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if (s < 10) {
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s = "0" + s;
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}
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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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getLocalStorageURLKeys: function () {
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var version = 'zerobinV' + 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 && key.indexOf("owner_key") === -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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/** 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) + '-' + date.getDate() + ' ' + zerobin.getFormatedTime(date));
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var keys = zerobin.getLocalStorageURLKeys();
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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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localStorage.setItem('zerobinV' + zerobin.version + "#" + zerobin.getPasteId(url) + "#owner_key", zerobin.getPasteOwnerKey(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 keys = zerobin.getLocalStorageURLKeys(),
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today = zerobin.getFormatedDate();
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return keys.map(function (key, i) {
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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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let link = localStorage.getItem(key);
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return {
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displayDate: displayDate,
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prefix: prefix,
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// The owner key is stored in the URL, but we don't want the user
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// to see it
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link: link.replace(/\?[^#]+#/, '#'),
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isCurrent: link.replace(/\?[^?]+/, '') === window.location.pathname
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};
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});
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},
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/** Return a 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, '');
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},
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getPasteOwnerKey: function (url) {
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var loc = url ? zerobin.parseUrl(url) : window.location;
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return (new URLSearchParams(loc.search)).get("owner_key");
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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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document.querySelectorAll("#paste-content li").forEach((node) => {
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copy = copy + node.textContent.replace(/[\u00a0]+/g, ' ') + '\n';
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})
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if (copy === '') {
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copy = document.querySelector("#paste-content").textContent;
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}
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return copy;
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},
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/** Return an approximate estimate of 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,
|
|
lineBreaks = length - text.replace(crlf, '').length;
|
|
|
|
return length + nonAscii + Math.max(0, options.lineBreaks * (lineBreaks - 1));
|
|
},
|
|
/** Create a message, style it and insert it in the alert box */
|
|
message: function (type, message, title, flush, callback, action) {
|
|
window.scrollTo(0, 0);
|
|
if (flush) {
|
|
app.messages = app.messages.filter((msg) => {
|
|
msg.type !== type
|
|
});
|
|
}
|
|
app.messages.push({
|
|
title: title,
|
|
content: message,
|
|
type: type,
|
|
action: action || {},
|
|
});
|
|
callback && callback()
|
|
},
|
|
|
|
/** Return a progress bar object */
|
|
progressBar: function (selector) {
|
|
var container = document.querySelector(selector);
|
|
var bar = {
|
|
container: container,
|
|
elem: container.childNodes[0]
|
|
};
|
|
bar.set = function (text, rate) {
|
|
bar.elem.innerHTML = text;
|
|
bar.elem.style.width = rate;
|
|
};
|
|
return bar;
|
|
},
|
|
|
|
/** Return an integer ranking the probability this text is any kind of
|
|
source code. */
|
|
isCode: function (text) {
|
|
|
|
var code_chars = /[A-Z]{3}[A-Z]+|\.[a-z]|[=:<>{}\[\]$_'"&]| {2}|\t/g;
|
|
var comments = /(:?\/\*|<!--)(:?.|\n)*?(:?\*\/|-->)|(\/\/|#)(.*?)\n/g;
|
|
var formating = /[-*=_+]{4,}/;
|
|
|
|
var total = 0;
|
|
var size = 0;
|
|
var m = text.match(comments);
|
|
if (m) {
|
|
total += text.match(comments).length;
|
|
}
|
|
text = text.replace(comments, '');
|
|
text.replace(formating, '');
|
|
text = text.split('\n');
|
|
for (var i = 0; i < text.length; i++) {
|
|
var line = text[i];
|
|
size += line.length;
|
|
var match = line.replace(formating, '').match(code_chars);
|
|
if (match) {
|
|
total += match.length;
|
|
}
|
|
}
|
|
|
|
// return total * 250 / size;
|
|
return total * 1000 / size;
|
|
},
|
|
|
|
// prevent defaults
|
|
ignoreDrag: function (e) {
|
|
e.stopPropagation();
|
|
e.preventDefault();
|
|
},
|
|
|
|
// Handle Drop
|
|
handleDrop: function (e) {
|
|
e.preventDefault();
|
|
zerobin.upload(e.dataTransfer.files);
|
|
document.getElementById("content").classList.remove("hover");
|
|
},
|
|
|
|
handleDragOver: function (e) {
|
|
zerobin.ignoreDrag(e);
|
|
document.getElementById("content").classList.add('hover');
|
|
},
|
|
|
|
handleDragLeave: function (e) {
|
|
document.getElementById("content").classList.remove("hover");
|
|
},
|
|
|
|
upload: function (files) {
|
|
let content = document.getElementById('content');
|
|
var current_file = files[0];
|
|
var reader = new FileReader();
|
|
if (current_file.type.indexOf('image') == 0) {
|
|
reader.onload = function (event) {
|
|
var image = new Image();
|
|
image.src = event.target.result;
|
|
|
|
image.onload = function () {
|
|
var maxWidth = 1024,
|
|
maxHeight = 1024,
|
|
imageWidth = image.width,
|
|
imageHeight = image.height;
|
|
|
|
if (imageWidth > imageHeight) {
|
|
if (imageWidth > maxWidth) {
|
|
imageHeight *= maxWidth / imageWidth;
|
|
imageWidth = maxWidth;
|
|
}
|
|
} else {
|
|
if (imageHeight > maxHeight) {
|
|
imageWidth *= maxHeight / imageHeight;
|
|
imageHeight = maxHeight;
|
|
}
|
|
}
|
|
|
|
var canvas = document.createElement('canvas');
|
|
canvas.width = imageWidth;
|
|
canvas.height = imageHeight;
|
|
image.width = imageWidth;
|
|
image.height = imageHeight;
|
|
var ctx = canvas.getContext("2d");
|
|
ctx.drawImage(this, 0, 0, imageWidth, imageHeight);
|
|
|
|
var paste = canvas.toDataURL(current_file.type);
|
|
|
|
content.value = paste;
|
|
content.dispatchEvent(new Event('change'));
|
|
|
|
image.style.maxWidth = '742px';
|
|
|
|
content.style.display = "none";
|
|
content.after(image);
|
|
|
|
}
|
|
}
|
|
reader.readAsDataURL(current_file);
|
|
} else {
|
|
reader.onload = function (event) {
|
|
content.value = event.target.result
|
|
content.dispatchEvent(new Event('change'));
|
|
};
|
|
reader.readAsText(current_file);
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
DECRYPTION:
|
|
On the display paste page, decrypt and decompress the paste content,
|
|
add syntax coloration then setup the copy to clipboard button.
|
|
Also calculate and set the paste visual hash.
|
|
*/
|
|
|
|
let pasteContent = document.querySelector('#paste-content');
|
|
let content = '';
|
|
|
|
if (pasteContent) {
|
|
content = pasteContent.textContent.trim();
|
|
app.currentPaste.id = zerobin.getPasteId(window.location);
|
|
}
|
|
|
|
var key = zerobin.getPasteKey();
|
|
var error = false;
|
|
|
|
if (content && key) {
|
|
|
|
var form = document.querySelectorAll('input, textarea, select, button');
|
|
form.forEach((node) => node.disabled = true);
|
|
|
|
var bar = zerobin.progressBar('.well form .progress');
|
|
app.isLoading = true;
|
|
bar.set('Decrypting paste...', '25%');
|
|
|
|
zerobin.decrypt(key, content,
|
|
|
|
/* On error*/
|
|
function () {
|
|
app.isLoading = false;
|
|
zerobin.message('danger', 'Could not decrypt data (Wrong key ?)', 'Error');
|
|
},
|
|
|
|
/* Update progress bar */
|
|
() => bar.set('Decompressing...', '45%'),
|
|
() => bar.set('Base64 decoding...', '65%'),
|
|
() => bar.set('From bits to string...', '85%'),
|
|
|
|
/* When done */
|
|
function (content) {
|
|
|
|
/* Decrypted content goes back to initial container*/
|
|
document.querySelector('#paste-content').innerText = content;
|
|
|
|
if (content.indexOf('data:image') == 0) {
|
|
// Display Image
|
|
|
|
app.currentPaste.type = "image";
|
|
let pasteContent = document.querySelector('#paste-content');
|
|
pasteContent.style.display = "none";
|
|
|
|
var img = document.createElement('img')
|
|
img.src = content;
|
|
img.style.maxWidth = '742px';
|
|
|
|
pasteContent.after(img);
|
|
|
|
// Display Download button
|
|
document.querySelectorAll('.btn-clone').forEach((node) => node.style.display = "none")
|
|
|
|
app.downloadLink = {
|
|
name: '0bin_' + document.location.pathname.split('/').pop(),
|
|
url: content
|
|
}
|
|
|
|
} else {
|
|
app.currentPaste.type = "text"
|
|
}
|
|
bar.set('Code coloration...', '95%');
|
|
|
|
/* Add a continuation to let the UI redraw */
|
|
setTimeout(function () {
|
|
|
|
/** Syntaxic coloration */
|
|
|
|
if (zerobin.isCode(content) > 100) {
|
|
document.getElementById('paste-content').classList.add('linenums');
|
|
prettyPrint();
|
|
} else {
|
|
if (content.indexOf('data:image') != 0) {
|
|
zerobin.message('primary',
|
|
"The paste did not seem to be code, so it " +
|
|
"was not colorized. ",
|
|
'', false, undefined, {
|
|
message: "Force coloration",
|
|
callback: app.handleForceColoration
|
|
});
|
|
}
|
|
}
|
|
|
|
/* Class to switch to paste content style with coloration done */
|
|
document.getElementById('paste-content').classList.add('done');
|
|
|
|
/* Display result */
|
|
bar.set('Done', '100%');
|
|
app.isLoading = false;
|
|
|
|
form.forEach((node) => node.disabled = false);
|
|
content = '';
|
|
|
|
}, 100);
|
|
|
|
});
|
|
|
|
} /* End of "DECRYPTION" */
|
|
|
|
window.onload = function () {
|
|
|
|
/* Display bottom paste option buttons when needed */
|
|
["keyup", "change"].forEach((event) => {
|
|
let content = document.getElementById("content");
|
|
content.addEventListener(event, () => {
|
|
let height = parseFloat(getComputedStyle(content, null).height.replace("px", ""))
|
|
app.displayBottomToolBar = height > 400;
|
|
})
|
|
})
|
|
|
|
/* Remove expired pasted from history **/
|
|
if (app.support.history && app.currentPaste.type === 'not_found') {
|
|
|
|
var paste_id = zerobin.getPasteId();
|
|
var keys = zerobin.getLocalStorageURLKeys();
|
|
keys.forEach((key, i) => {
|
|
if (localStorage[key].indexOf(paste_id) !== -1) {
|
|
localStorage.removeItem(key);
|
|
return false;
|
|
}
|
|
})
|
|
}
|
|
|
|
|
|
}
|
|
|
|
/* Display previous pastes */
|
|
if (app.support.localStorage) {
|
|
app.previousPastes = zerobin.getPreviousPastes();
|
|
app.currentPaste.ownerKey = localStorage.getItem('zerobinV' + zerobin.version + "#" + zerobin.getPasteId(window.location) + "#owner_key");
|
|
}
|
|
|
|
/* Upload file using HTML5 File API */
|
|
if (app.support.fileUpload) {
|
|
|
|
// Implements drag & drop upload
|
|
let content = document.getElementById('content');
|
|
content.addEventListener('drop', zerobin.handleDrop);
|
|
content.addEventListener('dragover', zerobin.handleDragOver);
|
|
content.addEventListener('dragleave', zerobin.handleDragLeave);
|
|
|
|
}
|
|
|
|
|
|
/* Autofit text area height */
|
|
const tx = document.getElementsByTagName('textarea');
|
|
for (let i = 0; i < tx.length; i++) {
|
|
tx[i].setAttribute('style', 'height:' + (tx[i].scrollHeight) + 'px;overflow-y:hidden;');
|
|
tx[i].addEventListener("input", OnInput, false);
|
|
}
|
|
|
|
function OnInput() {
|
|
this.style.height = 'auto';
|
|
this.style.height = (this.scrollHeight) + 'px';
|
|
}
|