Files
digiproof/js/apphelpers.js
2025-12-13 21:03:30 +01:00

123 lines
3.4 KiB
JavaScript

/*
*
* This file is part of the digital testament management program
* DigiProof.
*
* By accessing this software, DigiProof, you are duly informed
* of and agree to be bound by the conditions described below in this
* notice:
*
* This software product, DigiProof, is developed by T. Linden and
* copyrighted (C) 2013 by T. Linden, with all rights reserved.
*
* There is no charge for DigiProof software. You can redistribute
* it and/or modify it under the terms of the GNU General Public
* License, which is incorporated by reference herein.
*
* DigiProof is distributed WITHOUT ANY WARRANTY, IMPLIED OR EXPRESS,
* OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE or that
* the use of it will not infringe on any third party's intellectual
* property rights.
*
* You should have received a copy of the GNU General Public License
* along with DigiProof. Copies can also be obtained from:
*
* http://www.gnu.org/licenses/gpl-2.0.html
*
* or by writing to:
*
* Free Software Foundation, Inc.
* Inc., 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301
* USA
*
* Or contact:
*
* "T. Linden" <tlinden@cpan.org>
*
* The sourcecode can be found on:
*
* https://codeberg.org/scip/digiproof
*
*/
// tell if there have been anything done yet
function CheckForEmptyDB() {
var assets = App.Asset.find();
var notempty = true;
notempty = assets.forEach(function(asset) {
return false;
});
return notempty;
}
// Convert hex string to ASCII.
// See http://stackoverflow.com/questions/11889329/word-array-to-string
function hex2a(hex) {
var str = '';
for (var i = 0; i < hex.length; i += 2)
str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
return str;
}
// decrypt data
function decryptimport(hash, data) {
var clear = CryptoJS.AES.decrypt(data, hash);
return unescape(hex2a(clear.toString()));
}
// from:
// http://ntt.cc/2008/01/19/base64-encoder-decoder-with-javascript.html
function decode64(input) {
var output = "";
var chr1, chr2, chr3 = "";
var enc1, enc2, enc3, enc4 = "";
var i = 0;
var keyStr = "ABCDEFGHIJKLMNOP" +
"QRSTUVWXYZabcdef" +
"ghijklmnopqrstuv" +
"wxyz0123456789+/" +
"=";
// remove all characters that are not A-Z, a-z, 0-9, +, /, or =
var base64test = /[^A-Za-z0-9\+\/\=]/g; //
if (base64test.exec(input)) {
alert("There were invalid base64 characters in the input text.\n" +
"Valid base64 characters are A-Z, a-z, 0-9, '+', '/',and '='\n" +
"Expect errors in decoding.");
}
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
do {
enc1 = keyStr.indexOf(input.charAt(i++));
enc2 = keyStr.indexOf(input.charAt(i++));
enc3 = keyStr.indexOf(input.charAt(i++));
enc4 = keyStr.indexOf(input.charAt(i++));
chr1 = (enc1 << 2) | (enc2 >> 4);
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
chr3 = ((enc3 & 3) << 6) | enc4;
output = output + String.fromCharCode(chr1);
if (enc3 != 64) {
output = output + String.fromCharCode(chr2);
}
if (enc4 != 64) {
output = output + String.fromCharCode(chr3);
}
chr1 = chr2 = chr3 = "";
enc1 = enc2 = enc3 = enc4 = "";
} while (i < input.length);
return unescape(output);
}