1 files changed, 132 insertions, 0 deletions

diff --git a/frontend/delta/js/Clipperz/PM/PIN.js b/frontend/delta/js/Clipperz/PM/PIN.js
new file mode 100644
index 0000000..a32889a
--- a/dev/null
+++ b/frontend/delta/js/Clipperz/PM/PIN.js
@@ -0,0 +1,132 @@
+/*
+
+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 () {
+                        varfailureCount;
+                        varresult;
+
+                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) {
+                        varbyteArrayValue;
+                var decryptedValue;
+                        varresult;
+
+                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) {
+                        varencodedValue;
+                        varbyteArrayValue;
+                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"
+
+});
+