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Code Issues Releases Wiki Activity

delete old cloud storage code from email dao

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Tankred Hase 2013-09-24 13:02:22 +02:00
parent fbaa43aff6
commit 9767e3ace6
1 changed files with 0 additions and 241 deletions
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241
src/js/dao/email-dao.js
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@ -5,7 +5,6 @@ define(function(require) {
util = require('cryptoLib/util'),
crypto = require('js/crypto/crypto'),
jsonDB = require('js/dao/lawnchair-dao'),
devicestorage = require('js/dao/devicestorage-dao'),
str = require('js/app-config').string;
/**
@ -485,245 +484,5 @@ define(function(require) {
return self._account.folders[folderName][itemId];
};
//
// Cloud storage Apis
//
/**
* Fetch a list of emails from the device's local storage
* @param offset [Number] The offset of items to fetch (0 is the last stored item)
* @param num [Number] The number of items to fetch (null means fetch all)
*/
EmailDAO.prototype.listItems = function(folderName, offset, num, callback) {
var self = this,
collection, folder;
// check if items are in memory already (_account.folders model)
folder = self._account.get('folders').where({
name: folderName
})[0];
if (!folder) {
// get encrypted items from storage
devicestorage.listEncryptedItems('email_' + folderName, offset, num, function(err, encryptedList) {
if (err) {
callback(err);
return;
}
if (encryptedList.length === 0) {
callback(null, []);
return;
}
// decrypt list
crypto.decryptKeysAndList(encryptedList, function(err, decryptedList) {
if (err) {
callback(err);
return;
}
// cache collection in folder memory
if (decryptedList.length > 0) {
folder = {
name: folderName
};
folder.set('items', decryptedList);
self._account.get('folders').add(folder);
}
callback(null, decryptedList);
});
});
} else {
// read items from memory
collection = folder.get('items');
callback(null, collection);
}
};
/**
* Synchronize a folder's items from the cloud to the device-storage
* @param folderName [String] The name of the folder e.g. 'inbox'
*/
EmailDAO.prototype.syncFromCloud = function(folderName, callback) {
var self = this,
folder, already, pubkeyIds = [];
// fetch most recent date
this.listItems(folderName, 0, 1, function(err, localItems) {
if (err) {
callback(err); // error
return;
}
var filter = '';
if (localItems && localItems.length > 0) {
// get gmt date since that's what the storage service seems to use
var sentDate = localItems[localItems.length - 1].sentDate;
var date = util.parseDate(sentDate);
date.setHours(date.getHours() + (date.getTimezoneOffset() / 60));
var gmtDate = util.formatDate(date);
// sync delta of last item sent date
filter = '?date=' + gmtDate;
startSync(filter);
} else {
// do a full sync of all items on the cloud
startSync(filter);
}
});
function startSync(filter) {
// fetch items from the cloud
self._cloudstorage.listEncryptedItems('email', self._account.get('emailAddress'), folderName + filter, function(err, encryptedList) {
// return if an error occured
if (err) {
callback({
errMsg: 'Syncing encrypted items from cloud failed!',
err: err
}); // error
return;
}
if (encryptedList.length === 0) {
callback();
return;
}
// TODO: remove old folder items from devicestorage
reencryptItems(encryptedList);
});
}
function reencryptItems(encryptedList) {
// gather public key ids required to verify signatures
encryptedList.forEach(function(i) {
already = null;
already = _.findWhere(pubkeyIds, {
_id: i.senderPk
});
if (!already) {
pubkeyIds.push({
_id: i.senderPk
});
}
});
// fetch public keys from keychain
self._keychain.getPublicKeys(pubkeyIds, function(err, senderPubkeys) {
if (err) {
callback(err);
return;
}
// verfiy signatures and re-encrypt item keys
crypto.reencryptListKeysForUser(encryptedList, senderPubkeys, function(err, encryptedKeyList) {
if (err) {
callback(err);
return;
}
// persist encrypted list in device storage
devicestorage.storeEcryptedList(encryptedKeyList, 'email_' + folderName, function() {
// remove cached folder in _account model
folder = self._account.get('folders').where({
name: folderName
})[0];
if (folder) {
self._account.get('folders').remove(folder);
}
callback();
});
});
});
}
};
/**
* Send a plaintext Email to the user's outbox in the cloud
*/
EmailDAO.prototype.sendEmail = function(email, callback) {
var self = this,
userId = self._account.get('emailAddress');
// validate email addresses
var invalidRecipient;
_.each(email.to, function(i) {
if (!util.validateEmailAddress(i.address)) {
invalidRecipient = i.address;
}
});
if (invalidRecipient) {
callback({
errMsg: 'Invalid recipient: ' + invalidRecipient
});
return;
}
if (!util.validateEmailAddress(email.from[0].address)) {
callback({
errMsg: 'Invalid sender: ' + email.from
});
return;
}
// generate a new UUID for the new email
email.id = util.UUID();
// set sent date
email.sentDate = util.formatDate(new Date());
// only support single recipient for e-2-e encryption
var recipient = email.to[0].address;
// check if receiver has a public key
self._keychain.getReveiverPublicKey(recipient, function(err, receiverPubkey) {
if (err) {
callback(err);
return;
}
if (receiverPubkey) {
// public key found... encrypt and send
encrypt(email, receiverPubkey);
} else {
// no public key found... send plaintext mail via SMTP
send(email);
}
});
function encrypt(email, receiverPubkey) {
// encrypt the email
crypto.encryptListForUser([email], [receiverPubkey], function(err, encryptedList) {
if (err) {
callback(err);
return;
}
var ct = encryptedList[0];
var envelope = {
id: email.id,
crypto: 'rsa-1024-sha-256-aes-128-cbc',
sentDate: email.sentDate,
ciphertext: ct.ciphertext,
encryptedKey: ct.encryptedKey,
iv: ct.iv,
signature: ct.signature,
senderPk: ct.senderPk
};
send(envelope);
});
}
function send(email) {
// send email via cloud service
self._cloudstorage.deliverEmail(email, userId, recipient, function(err) {
callback(err);
});
}
};
return EmailDAO;
});