2016-01-16 15:19:33 +01:00
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'use strict';
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var kdbxweb = require('kdbxweb');
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kdbxweb.ProtectedValue.prototype.isProtected = true;
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2016-01-17 12:36:52 +01:00
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kdbxweb.ProtectedValue.prototype.forEachChar = function(fn) {
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var value = this._value, salt = this._salt;
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var b, b1, b2, b3;
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for (var i = 0, len = value.length; i < len; i++) {
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b = value[i] ^ salt[i];
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if (b < 128) {
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fn(b);
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continue;
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}
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i++; b1 = value[i] ^ salt[i];
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if (i === len) { break; }
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if (b >= 192 && b < 224) {
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fn(((b & 0x1f) << 6) | (b1 & 0x3f));
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continue;
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}
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i++; b2 = value[i] ^ salt[i];
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if (i === len) { break; }
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if (b >= 224 && b < 240) {
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fn(((b & 0xf) << 12) | ((b1 & 0x3f) << 6) | (b2 & 0x3f));
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}
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i++; b3 = value[i] ^ salt[i];
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if (i === len) { break; }
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if (b >= 240 && b < 248) {
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var c = ((b & 7) << 18) | ((b1 & 0x3f) << 12) | ((b2 & 0x3f) << 6) | (b3 & 0x3f);
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if (c <= 0xffff) {
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fn(c);
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2016-01-16 15:19:33 +01:00
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} else {
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2016-01-17 12:36:52 +01:00
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c ^= 0x10000;
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fn(0xd800 | (c >> 10));
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fn(0xdc00 | (c & 0x3ff));
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2016-01-16 15:19:33 +01:00
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}
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}
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2016-01-17 12:36:52 +01:00
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// skip error
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}
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};
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Object.defineProperty(kdbxweb.ProtectedValue.prototype, 'textLength', {
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get: function() {
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var textLength = 0;
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this.forEachChar(function() { textLength++; });
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2016-01-16 15:19:33 +01:00
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return textLength;
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}
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});
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2016-01-17 12:36:52 +01:00
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kdbxweb.ProtectedValue.prototype.includesLower = function(findLower) {
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var matches = false;
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var foundSeqs = [];
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var ix = 0;
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var len = findLower.length;
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this.forEachChar(function(ch) {
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ch = String.fromCharCode(ch).toLowerCase();
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if (matches) {
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return;
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}
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for (var i = 0; i < foundSeqs.length; i++) {
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var seqIx = ++foundSeqs[i];
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if (findLower[seqIx] !== ch) {
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foundSeqs.splice(i, 1);
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i--;
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2016-01-17 13:44:37 +01:00
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continue;
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}
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if (seqIx === len - 1) {
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matches = true;
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return;
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2016-01-17 12:36:52 +01:00
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}
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}
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if (findLower[0] === ch) {
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foundSeqs.push(0);
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}
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ix++;
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});
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return matches;
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};
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2016-01-16 15:19:33 +01:00
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module.exports = kdbxweb.ProtectedValue;
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