js/src/devtools/jint/sunspider/string-base64.js@129ffea94266
js/src/devtools/jint/sunspider/string-base64.js
Sat, 03 Jan 2015 20:18:00 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Sat, 03 Jan 2015 20:18:00 +0100
- branch
- TOR_BUG_3246
- changeset 7
- 129ffea94266
- permissions
- -rw-r--r--
Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.
1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5 // From: http://lxr.mozilla.org/mozilla/source/extensions/xml-rpc/src/nsXmlRpcClient.js#956
7 /* Convert data (an array of integers) to a Base64 string. */
8 var toBase64Table = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/';
9 var base64Pad = '=';
11 function toBase64(data) {
12 var result = '';
13 var length = data.length;
14 var i;
15 // Convert every three bytes to 4 ascii characters.
16 /* BEGIN LOOP */
17 for (i = 0; i < (length - 2); i += 3) {
18 result += toBase64Table[data[i] >> 2];
19 result += toBase64Table[((data[i] & 0x03) << 4) + (data[i+1] >> 4)];
20 result += toBase64Table[((data[i+1] & 0x0f) << 2) + (data[i+2] >> 6)];
21 result += toBase64Table[data[i+2] & 0x3f];
22 }
23 /* END LOOP */
25 // Convert the remaining 1 or 2 bytes, pad out to 4 characters.
26 if (length%3) {
27 i = length - (length%3);
28 result += toBase64Table[data[i] >> 2];
29 if ((length%3) == 2) {
30 result += toBase64Table[((data[i] & 0x03) << 4) + (data[i+1] >> 4)];
31 result += toBase64Table[(data[i+1] & 0x0f) << 2];
32 result += base64Pad;
33 } else {
34 result += toBase64Table[(data[i] & 0x03) << 4];
35 result += base64Pad + base64Pad;
36 }
37 }
39 return result;
40 }
42 /* Convert Base64 data to a string */
43 var toBinaryTable = [
44 -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
45 -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1,
46 -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,62, -1,-1,-1,63,
47 52,53,54,55, 56,57,58,59, 60,61,-1,-1, -1, 0,-1,-1,
48 -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10, 11,12,13,14,
49 15,16,17,18, 19,20,21,22, 23,24,25,-1, -1,-1,-1,-1,
50 -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40,
51 41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1
52 ];
54 function base64ToString(data) {
55 var result = '';
56 var leftbits = 0; // number of bits decoded, but yet to be appended
57 var leftdata = 0; // bits decoded, but yet to be appended
59 // Convert one by one.
60 /* BEGIN LOOP */
61 for (var i = 0; i < data.length; i++) {
62 var c = toBinaryTable[data.charCodeAt(i) & 0x7f];
63 var padding = (data[i] == base64Pad);
64 // Skip illegal characters and whitespace
65 if (c == -1) continue;
67 // Collect data into leftdata, update bitcount
68 leftdata = (leftdata << 6) | c;
69 leftbits += 6;
71 // If we have 8 or more bits, append 8 bits to the result
72 if (leftbits >= 8) {
73 leftbits -= 8;
74 // Append if not padding.
75 if (!padding)
76 result += String.fromCharCode((leftdata >> leftbits) & 0xff);
77 leftdata &= (1 << leftbits) - 1;
78 }
79 }
80 /* END LOOP */
82 // If there are any bits left, the base64 string was corrupted
83 if (leftbits)
84 throw Components.Exception('Corrupted base64 string');
86 return result;
87 }
89 var str = "";
91 /* BEGIN LOOP */
92 for ( var i = 0; i < 8192; i++ )
93 str += String.fromCharCode( (25 * Math.random()) + 97 );
94 /* END LOOP */
96 /* BEGIN LOOP */
97 for ( var i = 8192; i <= 16384; i *= 2 ) {
99 var base64;
101 base64 = toBase64(str);
102 base64ToString(base64);
104 // Double the string
105 str += str;
106 }
107 /* END LOOP */
109 toBinaryTable = null;
