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Code Issues Releases Wiki Activity

fix and cleanup encrypted message parsing

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This commit is contained in:
Tankred Hase 2013-09-15 19:00:35 +02:00
parent a0ae4e6742
commit dc7feaa80a
2 changed files with 22 additions and 12 deletions
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7
src/js/app-config.js
View File

@ -34,7 +34,12 @@ define([], function() {
* Strings are maintained here
*/
app.string = {
signature: 'Sent securely from whiteout mail'
subject: '[whiteout] Encrypted message',
message: 'this is a private conversation. To read my encrypted message below, simply install Whiteout Mail for Chrome. The app is really easy to use and automatically encrypts sent emails, so that only the two of us can read them: https://chrome.google.com/webstore/detail/whiteout-mail/jjgghafhamholjigjoghcfcekhkonijg',
cryptPrefix: '-----BEGIN ENCRYPTED MESSAGE-----',
cryptSuffix: '-----END ENCRYPTED MESSAGE-----',
signature: 'Sent securely from whiteout mail',
webSite: 'http://whiteout.io'
};
return app;

27
src/js/dao/email-dao.js
View File

@ -5,13 +5,8 @@ define(function(require) {
util = require('cryptoLib/util'),
crypto = require('js/crypto/crypto'),
jsonDB = require('js/dao/lawnchair-dao'),
devicestorage = require('js/dao/devicestorage-dao');
var SUBJECT = '[whiteout] Encrypted message',
MESSAGE = 'this is a private conversation. To read my encrypted message below, simply install Whiteout Mail for Chrome. The app is really easy to use and automatically encrypts sent emails, so that only the two of us can read them: https://chrome.google.com/webstore/detail/whiteout-mail/jjgghafhamholjigjoghcfcekhkonijg\n\n\n',
PREFIX = '-----BEGIN ENCRYPTED MESSAGE-----\n',
SUFFIX = '\n-----END ENCRYPTED MESSAGE-----',
SIGNATURE = '\n\n\nSent securely from whiteout mail\nhttp://whiteout.io\n\n';
devicestorage = require('js/dao/devicestorage-dao'),
str = require('js/app-config').string;
/**
* A high-level Data-Access Api for handling Email synchronization
@ -256,6 +251,12 @@ define(function(require) {
function frameEncryptedMessage(email, ct) {
var to, greeting, ctBase64;
var SUBJECT = str.subject,
MESSAGE = str.message + '\n\n\n',
PREFIX = str.cryptPrefix + '\n',
SUFFIX = '\n' + str.cryptSuffix,
SIGNATURE = '\n\n\n' + str.signature + '\n' + str.webSite + '\n\n';
// get first name of recipient
to = (email.to[0].name || email.to[0].address).split('@')[0].split('.')[0].split(' ')[0];
greeting = 'Hi ' + to + ',\n\n';
@ -350,7 +351,7 @@ define(function(require) {
}
// decrypt Message body
if (message.body.indexOf(PREFIX) !== -1 && message.body.indexOf(SUFFIX) !== -1) {
if (message.body.indexOf(str.cryptPrefix) !== -1 && message.body.indexOf(str.cryptSuffix) !== -1) {
decryptBody(message, function(err, ptMessage) {
message = ptMessage;
// return decrypted message
@ -366,12 +367,16 @@ define(function(require) {
}
function decryptBody(email, callback) {
var ctMessageBase64, ctMessage, pubkeyIds;
var ctMessageBase64, ctMessageJson, ctMessage, pubkeyIds;
// parse email body for encrypted message block
try {
ctMessageBase64 = email.body.split(PREFIX)[1].split(SUFFIX)[0];
ctMessage = JSON.parse(atob(ctMessageBase64));
// get base64 encoded message block
ctMessageBase64 = email.body.split(str.cryptPrefix)[1].split(str.cryptSuffix)[0].trim();
// decode bae64
ctMessageJson = atob(ctMessageBase64);
// parse json string to get ciphertext object
ctMessage = JSON.parse(ctMessageJson);
} catch (e) {
callback({
errMsg: 'Error parsing encrypted message block!'