The Tor Browser: other-licenses/7zstub/src/7zip/Archive/7z/7zProperties.cpp@97036ab72558

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 // 7zProperties.cpp

     3 #include "StdAfx.h"

     5 #include "7zProperties.h"

     6 #include "7zHeader.h"

     7 #include "7zHandler.h"

     9 // #define _MULTI_PACK

    11 namespace NArchive {

    12 namespace N7z {

    14 struct CPropMap

    15 {

    16   UInt64 FilePropID;

    17   STATPROPSTG StatPROPSTG;

    18 };

    20 CPropMap kPropMap[] =

    21 {

    22   { NID::kName, NULL, kpidPath, VT_BSTR},

    23   { NID::kSize, NULL, kpidSize, VT_UI8},

    24   { NID::kPackInfo, NULL, kpidPackedSize, VT_UI8},

    26   #ifdef _MULTI_PACK

    27   { 100, L"Pack0", kpidPackedSize0, VT_UI8},

    28   { 101, L"Pack1", kpidPackedSize1, VT_UI8},

    29   { 102, L"Pack2", kpidPackedSize2, VT_UI8},

    30   { 103, L"Pack3", kpidPackedSize3, VT_UI8},

    31   { 104, L"Pack4", kpidPackedSize4, VT_UI8},

    32   #endif

    34   { NID::kCreationTime, NULL, kpidCreationTime, VT_FILETIME},

    35   { NID::kLastWriteTime, NULL, kpidLastWriteTime, VT_FILETIME},

    36   { NID::kLastAccessTime, NULL, kpidLastAccessTime, VT_FILETIME},

    37   { NID::kWinAttributes, NULL, kpidAttributes, VT_UI4},

    38   { NID::kStartPos, NULL, kpidPosition, VT_UI4},

    41   { NID::kCRC, NULL, kpidCRC, VT_UI4},

    43   { NID::kAnti, L"Anti", kpidIsAnti, VT_BOOL},

    44   // { 97, NULL, kpidSolid, VT_BOOL},

    45   #ifndef _SFX

    46   { 98, NULL, kpidMethod, VT_BSTR},

    47   { 99, L"Block", kpidBlock, VT_UI4}

    48   #endif

    49   // { L"ID", kpidID, VT_BSTR},

    50   // { L"UnPack Version", kpidUnPackVersion, VT_UI1},

    51   // { L"Host OS", kpidHostOS, VT_BSTR}

    52 };

    54 static const int kPropMapSize = sizeof(kPropMap) / sizeof(kPropMap[0]);

    56 static int FindPropInMap(UInt64 filePropID)

    57 {

    58   for (int i = 0; i < kPropMapSize; i++)

    59     if (kPropMap[i].FilePropID == filePropID)

    60       return i;

    61   return -1;

    62 }

    64 static void CopyOneItem(CRecordVector<UInt64> &src,

    65     CRecordVector<UInt64> &dest, UInt32 item)

    66 {

    67   for (int i = 0; i < src.Size(); i++)

    68     if (src[i] == item)

    69     {

    70       dest.Add(item);

    71       src.Delete(i);

    72       return;

    73     }

    74 }

    76 static void RemoveOneItem(CRecordVector<UInt64> &src, UInt32 item)

    77 {

    78   for (int i = 0; i < src.Size(); i++)

    79     if (src[i] == item)

    80     {

    81       src.Delete(i);

    82       return;

    83     }

    84 }

    86 static void InsertToHead(CRecordVector<UInt64> &dest, UInt32 item)

    87 {

    88   for (int i = 0; i < dest.Size(); i++)

    89     if (dest[i] == item)

    90     {

    91       dest.Delete(i);

    92       break;

    93     }

    94   dest.Insert(0, item);

    95 }

    97 void CHandler::FillPopIDs()

    98 {

    99   _fileInfoPopIDs.Clear();

   101   #ifdef _7Z_VOL

   102   if(_volumes.Size() < 1)

   103     return;

   104   const CVolume &volume = _volumes.Front();

   105   const CArchiveDatabaseEx &_database = volume.Database;

   106   #endif

   108   CRecordVector<UInt64> fileInfoPopIDs = _database.ArchiveInfo.FileInfoPopIDs;

   110   RemoveOneItem(fileInfoPopIDs, NID::kEmptyStream);

   111   RemoveOneItem(fileInfoPopIDs, NID::kEmptyFile);

   113   CopyOneItem(fileInfoPopIDs, _fileInfoPopIDs, NID::kName);

   114   CopyOneItem(fileInfoPopIDs, _fileInfoPopIDs, NID::kAnti);

   115   CopyOneItem(fileInfoPopIDs, _fileInfoPopIDs, NID::kSize);

   116   CopyOneItem(fileInfoPopIDs, _fileInfoPopIDs, NID::kPackInfo);

   117   CopyOneItem(fileInfoPopIDs, _fileInfoPopIDs, NID::kCreationTime);

   118   CopyOneItem(fileInfoPopIDs, _fileInfoPopIDs, NID::kLastWriteTime);

   119   CopyOneItem(fileInfoPopIDs, _fileInfoPopIDs, NID::kLastAccessTime);

   120   CopyOneItem(fileInfoPopIDs, _fileInfoPopIDs, NID::kWinAttributes);

   121   CopyOneItem(fileInfoPopIDs, _fileInfoPopIDs, NID::kCRC);

   122   CopyOneItem(fileInfoPopIDs, _fileInfoPopIDs, NID::kComment);

   123   _fileInfoPopIDs += fileInfoPopIDs;

   125   #ifndef _SFX

   126   _fileInfoPopIDs.Add(98);

   127   _fileInfoPopIDs.Add(99);

   128   #endif

   129   #ifdef _MULTI_PACK

   130   _fileInfoPopIDs.Add(100);

   131   _fileInfoPopIDs.Add(101);

   132   _fileInfoPopIDs.Add(102);

   133   _fileInfoPopIDs.Add(103);

   134   _fileInfoPopIDs.Add(104);

   135   #endif

   137   #ifndef _SFX

   138   InsertToHead(_fileInfoPopIDs, NID::kLastWriteTime);

   139   InsertToHead(_fileInfoPopIDs, NID::kPackInfo);

   140   InsertToHead(_fileInfoPopIDs, NID::kSize);

   141   InsertToHead(_fileInfoPopIDs, NID::kName);

   142   #endif

   143 }

   145 STDMETHODIMP CHandler::GetNumberOfProperties(UInt32 *numProperties)

   146 {

   147   *numProperties = _fileInfoPopIDs.Size();

   148   return S_OK;

   149 }

   151 STDMETHODIMP CHandler::GetPropertyInfo(UInt32 index,

   152       BSTR *name, PROPID *propID, VARTYPE *varType)

   153 {

   154   if((int)index >= _fileInfoPopIDs.Size())

   155     return E_INVALIDARG;

   156   int indexInMap = FindPropInMap(_fileInfoPopIDs[index]);

   157   if (indexInMap == -1)

   158     return E_INVALIDARG;

   159   const STATPROPSTG &srcItem = kPropMap[indexInMap].StatPROPSTG;

   160   *propID = srcItem.propid;

   161   *varType = srcItem.vt;

   162   *name = 0;

   163   return S_OK;

   164 }

   166 }}

The Tor Browser / file revision

other-licenses/7zstub/src/7zip/Archive/7z/7zProperties.cpp@97036ab72558

other-licenses/7zstub/src/7zip/Archive/7z/7zProperties.cpp