working on password function for #15:
- asking again if password is wrong - display error if user cancels dialog - use password to encrypt comments, too (password is "stored" in the password field) - store password in sessionStorage when posting a comment so, that it doesn't have to typed in again, but clear sessionStorage as soon as password is retrieved
This commit is contained in:
El RIDO
parent
d3c4600806
commit
9fdbba76ce
107
js/zerobin.js
107
js/zerobin.js
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@ -13,10 +13,10 @@
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sjcl.random.startCollectors();
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/**
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* Converts a duration (in seconds) into human readable format.
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* Converts a duration (in seconds) into human readable format.
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*
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* @param int seconds
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* @return string
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* @param int seconds
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* @return string
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*/
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function secondsToHuman(seconds)
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{
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@ -37,7 +37,7 @@ function secondsToHuman(seconds)
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*/
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function hashToParameterString(associativeArray)
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{
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var parameterString = ""
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var parameterString = "";
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for (key in associativeArray)
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{
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if( parameterString === "" )
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@ -80,7 +80,7 @@ function parameterStringToHash(parameterString)
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* Get an associative array of the parameters found in the anchor
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*
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* @return object
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**/
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*/
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function getParameterHash()
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{
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var hashIndex = window.location.href.indexOf("#");
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@ -116,58 +116,80 @@ function decompress(data) {
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* @return encrypted string data
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*/
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function zeroCipher(key, message) {
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if ($('input#passwordinput').val().length == 0) {
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if ($('#passwordinput').val().length == 0) {
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return sjcl.encrypt(key, compress(message));
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}
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return sjcl.encrypt(key + sjcl.codec.hex.fromBits(sjcl.hash.sha256.hash($("input#passwordinput").val())), compress(message));
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return sjcl.encrypt(key + sjcl.codec.hex.fromBits(sjcl.hash.sha256.hash($("#passwordinput").val())), compress(message));
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}
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/**
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* Decrypt message with key, then decompress.
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* Decrypt message with key, then decompress.
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*
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* @param key
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* @param encrypted string data
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* @return string readable message
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* @param string key
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* @param encrypted string data
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* @return string readable message
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*/
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function zeroDecipher(key, data) {
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if (data != undefined) {
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try {
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return decompress(sjcl.decrypt(key, data));
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} catch (err) {
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var password = prompt("Please enter the password for this paste:", "");
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return decompress(sjcl.decrypt(key + sjcl.codec.hex.fromBits(sjcl.hash.sha256.hash(password)), data));
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try {
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if ($('#passwordinput').val().length > 0) {
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password = $('#passwordinput').val();
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} else {
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password = prompt("Please enter the password for this paste:", "");
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if (password == null) return null;
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}
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data = decompress(sjcl.decrypt(key + sjcl.codec.hex.fromBits(sjcl.hash.sha256.hash(password)), data));
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$('#passwordinput').val(password);
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return data;
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} catch (err) {
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return zeroDecipher(key, data);
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}
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}
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}
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}
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/**
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* @return the current script location (without search or hash part of the URL).
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* eg. http://server.com/zero/?aaaa#bbbb --> http://server.com/zero/
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* Get the current script location (without search or hash part of the URL).
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* eg. http://server.com/zero/?aaaa#bbbb --> http://server.com/zero/
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*
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* @return string current script location
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*/
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function scriptLocation() {
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var scriptLocation = window.location.href.substring(0,window.location.href.length
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- window.location.search.length - window.location.hash.length);
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var hashIndex = scriptLocation.indexOf("#");
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if (hashIndex !== -1) {
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scriptLocation = scriptLocation.substring(0, hashIndex)
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scriptLocation = scriptLocation.substring(0, hashIndex);
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}
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return scriptLocation
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return scriptLocation;
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}
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/**
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* @return the paste unique identifier from the URL
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* eg. 'c05354954c49a487'
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* Get the pastes unique identifier from the URL
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* eg. http://server.com/zero/?c05354954c49a487#xxx --> c05354954c49a487
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*
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* @return string unique identifier
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*/
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function pasteID() {
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return window.location.search.substring(1);
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}
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/**
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* Convert all applicable characters to HTML entities
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*
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* @param string str
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* @returns string encoded string
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*/
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function htmlEntities(str) {
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return String(str).replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>').replace(/"/g, '"');
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}
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/**
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* Set text of a DOM element (required for IE)
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* This is equivalent to element.text(text)
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*
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* @param object element : a DOM element.
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* @param string text : the text to enter.
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*/
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@ -191,8 +213,14 @@ function setElementText(element, text) {
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* @param array comments : Array of messages to display (items = array with keys ('data','meta')
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*/
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function displayMessages(key, comments) {
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// restore password if set in previous visit, then clear the session
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if (window.sessionStorage && sessionStorage.getItem(pageKey())) {
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$('#passwordinput').val(sessionStorage.getItem(pageKey()));
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sessionStorage.clear();
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}
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try { // Try to decrypt the paste.
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var cleartext = zeroDecipher(key, comments[0].data);
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if (cleartext == null) throw "password prompt canceled";
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} catch(err) {
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$('#cleartext').addClass('hidden');
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$('#prettymessage').addClass('hidden');
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@ -217,7 +245,7 @@ function displayMessages(key, comments) {
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// If the discussion is opened on this paste, display it.
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if (comments[0].meta.opendiscussion) {
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$('#comments').html('');
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// For each comment.
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// iterate over comments
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for (var i = 1; i < comments.length; i++) {
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var comment=comments[i];
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var cleartext="[Could not decrypt comment ; Wrong key ?]";
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@ -226,7 +254,7 @@ function displayMessages(key, comments) {
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} catch(err) { }
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var place = $('#comments');
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// If parent comment exists, display below (CSS will automatically shift it right.)
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var cname = '#comment_'+comment.meta.parentid
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var cname = '#comment_'+comment.meta.parentid;
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// If the element exists in page
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if ($(cname).length) {
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@ -249,7 +277,7 @@ function displayMessages(key, comments) {
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// If an avatar is available, display it.
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if (comment.meta.vizhash) {
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divComment.find('span.nickname').before('<img src="' + comment.meta.vizhash + '" class="vizhash" title="Anonymous avatar (Vizhash of the IP address)" />');
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divComment.find('span.nickname').before('<img src="' + comment.meta.vizhash + '" class="vizhash" title="Anonymous avatar (Vizhash of the IP address)" /> ');
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}
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place.append(divComment);
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@ -261,6 +289,7 @@ function displayMessages(key, comments) {
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/**
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* Open the comment entry when clicking the "Reply" button of a comment.
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*
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* @param object source : element which emitted the event.
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* @param string commentid = identifier of the comment we want to reply to.
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*/
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@ -282,6 +311,7 @@ function open_reply(source, commentid) {
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/**
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* Send a reply in a discussion.
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*
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* @param string parentid : the comment identifier we want to send a reply to.
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*/
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function send_comment(parentid) {
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@ -310,6 +340,10 @@ function send_comment(parentid) {
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.success(function(data) {
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if (data.status == 0) {
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showStatus('Comment posted.');
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// store password temporarily between page loads
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if ($('#passwordinput').val().length > 0 && window.sessionStorage) {
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sessionStorage.setItem(pageKey(), $('#passwordinput').val());
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}
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location.reload();
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}
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else if (data.status==1) {
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@ -323,7 +357,7 @@ function send_comment(parentid) {
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/**
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* Send a new paste to server
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* Send a new paste to server
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*/
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function send_data() {
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// Do not send if no data.
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@ -381,20 +415,22 @@ function send_data() {
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});
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}
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/** Text range selection.
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* From: http://stackoverflow.com/questions/985272/jquery-selecting-text-in-an-element-akin-to-highlighting-with-your-mouse
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* @param string element : Indentifier of the element to select (id="").
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/**
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* Text range selection.
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* From: http://stackoverflow.com/questions/985272/jquery-selecting-text-in-an-element-akin-to-highlighting-with-your-mouse
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*
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* @param string element : Indentifier of the element to select (id="").
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*/
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function selectText(element) {
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var doc = document
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, text = doc.getElementById(element)
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, range, selection
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;
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if (doc.body.createTextRange) { //ms
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if (doc.body.createTextRange) { // MS
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range = doc.body.createTextRange();
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range.moveToElementText(text);
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range.select();
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} else if (window.getSelection) { //all others
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} else if (window.getSelection) { // all others
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selection = window.getSelection();
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range = doc.createRange();
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range.selectNodeContents(text);
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@ -451,8 +487,9 @@ function stateExistingPaste() {
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$('#prettymessage').removeClass('hidden');
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}
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/** Return raw text
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*/
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/**
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* Return raw text
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*/
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function rawText()
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{
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var paste = $('#cleartext').html();
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@ -488,7 +525,11 @@ function newPaste() {
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* (We use the same function for paste and reply to comments)
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*/
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function showError(message) {
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$('#status').addClass('errorMessage').text(message);
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if ($('#status').length) {
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$('#status').addClass('errorMessage').text(message);
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} else {
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$('#errormessage').removeClass('hidden').append(message);
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}
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$('#replystatus').addClass('errorMessage').text(message);
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}
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@ -529,7 +570,6 @@ function showStatus(message, spin) {
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* </code>
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*
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* @param object element : a jQuery DOM element.
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* @FIXME: add ppa & apt links.
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*/
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function urls2links(element) {
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var re = /((http|https|ftp):\/\/[\w?=&.\/-;#@~%+-]+(?![\w\s?&.\/;#~%"=-]*>))/ig;
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@ -560,6 +600,9 @@ function pageKey() {
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return key;
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}
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/**
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* main application start, called when DOM is fully loaded
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*/
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$(function() {
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// hide "no javascript" message
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$('#noscript').hide();
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