intl/uconv/src/nsReplacementToUnicode.cpp@97036ab72558
intl/uconv/src/nsReplacementToUnicode.cpp
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
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 #include "nsReplacementToUnicode.h"
7 nsReplacementToUnicode::nsReplacementToUnicode()
8 : mSeenByte(false)
9 {
10 }
12 NS_IMETHODIMP
13 nsReplacementToUnicode::Convert(const char* aSrc,
14 int32_t* aSrcLength,
15 char16_t* aDest,
16 int32_t* aDestLength)
17 {
18 if (mSeenByte || !(*aSrcLength)) {
19 *aDestLength = 0;
20 return NS_PARTIAL_MORE_INPUT;
21 }
22 if (mErrBehavior == kOnError_Signal) {
23 mSeenByte = true;
24 *aSrcLength = 0;
25 *aDestLength = 0;
26 return NS_ERROR_ILLEGAL_INPUT;
27 }
28 if (!(*aDestLength)) {
29 *aSrcLength = -1;
30 return NS_PARTIAL_MORE_OUTPUT;
31 }
32 mSeenByte = true;
33 *aDest = 0xFFFD;
34 *aDestLength = 1;
35 return NS_PARTIAL_MORE_INPUT;
36 }
38 NS_IMETHODIMP
39 nsReplacementToUnicode::GetMaxLength(const char* aSrc,
40 int32_t aSrcLength,
41 int32_t* aDestLength)
42 {
43 if (!mSeenByte && aSrcLength > 0) {
44 *aDestLength = 1;
45 } else {
46 *aDestLength = 0;
47 }
48 return NS_EXACT_LENGTH;
49 }
51 NS_IMETHODIMP
52 nsReplacementToUnicode::Reset()
53 {
54 mSeenByte = false;
55 return NS_OK;
56 }
