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mirror of http://git.whoc.org.uk/git/password-manager.git synced 2024-11-10 22:07:16 +01:00
password-manager-mirror/frontend/delta/js/Clipperz/PM/PIN.js
2013-08-30 23:23:42 +02:00

133 lines
3.6 KiB
JavaScript

/*
Copyright 2008-2013 Clipperz Srl
This file is part of Clipperz, the online password manager.
For further information about its features and functionalities please
refer to http://www.clipperz.com.
* Clipperz is free software: you can redistribute it and/or modify it
under the terms of the GNU Affero General Public License as published
by the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
* Clipperz is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU Affero General Public License for more details.
* You should have received a copy of the GNU Affero General Public
License along with Clipperz. If not, see http://www.gnu.org/licenses/.
*/
if (typeof(Clipperz) == 'undefined') { Clipperz = {}; }
if (typeof(Clipperz.PM) == 'undefined') { Clipperz.PM = {}; }
if (typeof(Clipperz.PM.PIN) == 'undefined') { Clipperz.PM.PIN = {}; }
MochiKit.Base.update(Clipperz.PM.PIN, {
//-------------------------------------------------------------------------
'__repr__': function () {
return "[" + this.NAME + " " + this.VERSION + "]";
},
//-------------------------------------------------------------------------
'toString': function () {
return this.__repr__();
},
'CREDENTIALS': 'CLIPPERZ.CREDENTIALS',
'FAILURE_COUNT': 'CLIPPERZ.FAILED_LOGIN_COUNT',
'ALLOWED_RETRY': 3,
//-------------------------------------------------------------------------
'isSet': function () {
return (this.storedCredentials() != null);
},
'storedCredentials': function () {
return localStorage[this.CREDENTIALS];
},
//-------------------------------------------------------------------------
'recordFailedAttempt': function () {
var failureCount;
var result;
failureCount = localStorage[this.FAILURE_COUNT];
if (failureCount == null) {
failureCount = 0
}
failureCount ++;
if (failureCount < this.ALLOWED_RETRY) {
localStorage[this.FAILURE_COUNT] = failureCount;
result = failureCount;
} else {
this.removeLocalCredentials();
result = -1;
}
return result;
},
'resetFailedAttemptCount': function () {
localStorage.removeItem(this.FAILURE_COUNT);
},
'failureCount': function () {
return localStorage[this.FAILURE_COUNT];
},
//-------------------------------------------------------------------------
'deriveKeyFromPin': function (aPIN) {
return Clipperz.Crypto.SHA.sha256(new Clipperz.ByteArray(aPIN));
},
'credentialsWithPIN': function (aPIN) {
var byteArrayValue;
var decryptedValue;
var result;
byteArrayValue = (new Clipperz.ByteArray()).appendBase64String(localStorage[this.CREDENTIALS]);
decryptedValue = Clipperz.Crypto.AES.decrypt(this.deriveKeyFromPin(aPIN), byteArrayValue).asString();
try {
result = Clipperz.Base.evalJSON(decryptedValue);
} catch (error) {
result = {'username':'fakeusername', 'passphrase':'fakepassphrase'};
}
return result;
},
'setCredentialsWithPIN': function (aPIN, someCredentials) {
var encodedValue;
var byteArrayValue;
var encryptedValue;
encodedValue = Clipperz.Base.serializeJSON(someCredentials);
byteArrayValue = new Clipperz.ByteArray(encodedValue);
encryptedValue = Clipperz.Crypto.AES.encrypt(this.deriveKeyFromPin(aPIN), byteArrayValue).toBase64String();
localStorage[this.CREDENTIALS] = encryptedValue;
},
'removeLocalCredentials': function () {
localStorage.removeItem(this.CREDENTIALS);
localStorage.removeItem(this.FAILURE_COUNT);
},
//-------------------------------------------------------------------------
__syntaxFix__: "syntax fix"
});