other-licenses/7zstub/src/7zip/Common/FilePathAutoRename.cpp@97036ab72558 (annotated)
other-licenses/7zstub/src/7zip/Common/FilePathAutoRename.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.
| michael@0 | 1 | // FilePathAutoRename.cpp |
| michael@0 | 2 | |
| michael@0 | 3 | #include "StdAfx.h" |
| michael@0 | 4 | #include "FilePathAutoRename.h" |
| michael@0 | 5 | |
| michael@0 | 6 | #include "Common/Defs.h" |
| michael@0 | 7 | #include "Common/IntToString.h" |
| michael@0 | 8 | |
| michael@0 | 9 | #include "Windows/FileName.h" |
| michael@0 | 10 | #include "Windows/FileFind.h" |
| michael@0 | 11 | |
| michael@0 | 12 | using namespace NWindows; |
| michael@0 | 13 | |
| michael@0 | 14 | static bool MakeAutoName(const UString &name, |
| michael@0 | 15 | const UString &extension, int value, UString &path) |
| michael@0 | 16 | { |
| michael@0 | 17 | wchar_t number[32]; |
| michael@0 | 18 | ConvertUInt64ToString(value, number); |
| michael@0 | 19 | path = name; |
| michael@0 | 20 | path += number; |
| michael@0 | 21 | path += extension; |
| michael@0 | 22 | return NFile::NFind::DoesFileExist(path); |
| michael@0 | 23 | } |
| michael@0 | 24 | |
| michael@0 | 25 | bool AutoRenamePath(UString &fullProcessedPath) |
| michael@0 | 26 | { |
| michael@0 | 27 | UString path; |
| michael@0 | 28 | int dotPos = fullProcessedPath.ReverseFind(L'.'); |
| michael@0 | 29 | |
| michael@0 | 30 | int slashPos = fullProcessedPath.ReverseFind(L'/'); |
| michael@0 | 31 | #ifdef _WIN32 |
| michael@0 | 32 | int slash1Pos = fullProcessedPath.ReverseFind(L'\\'); |
| michael@0 | 33 | slashPos = MyMax(slashPos, slash1Pos); |
| michael@0 | 34 | #endif |
| michael@0 | 35 | |
| michael@0 | 36 | UString name, extension; |
| michael@0 | 37 | if (dotPos > slashPos && dotPos > 0) |
| michael@0 | 38 | { |
| michael@0 | 39 | name = fullProcessedPath.Left(dotPos); |
| michael@0 | 40 | extension = fullProcessedPath.Mid(dotPos); |
| michael@0 | 41 | } |
| michael@0 | 42 | else |
| michael@0 | 43 | name = fullProcessedPath; |
| michael@0 | 44 | name += L'_'; |
| michael@0 | 45 | int indexLeft = 1, indexRight = (1 << 30); |
| michael@0 | 46 | while (indexLeft != indexRight) |
| michael@0 | 47 | { |
| michael@0 | 48 | int indexMid = (indexLeft + indexRight) / 2; |
| michael@0 | 49 | if (MakeAutoName(name, extension, indexMid, path)) |
| michael@0 | 50 | indexLeft = indexMid + 1; |
| michael@0 | 51 | else |
| michael@0 | 52 | indexRight = indexMid; |
| michael@0 | 53 | } |
| michael@0 | 54 | if (MakeAutoName(name, extension, indexRight, fullProcessedPath)) |
| michael@0 | 55 | return false; |
| michael@0 | 56 | return true; |
| michael@0 | 57 | } |
