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269 lines
7.6 KiB
269 lines
7.6 KiB
#include "rar.hpp"
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#ifdef RARDLL
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static bool DllVolChange(CommandData *Cmd,wchar *NextName,size_t NameSize);
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static bool DllVolNotify(CommandData *Cmd,wchar *NextName);
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#endif
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bool MergeArchive(Archive &Arc,ComprDataIO *DataIO,bool ShowFileName,wchar Command)
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{
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CommandData *Cmd=Arc.GetCommandData();
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HEADER_TYPE HeaderType=Arc.GetHeaderType();
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FileHeader *hd=HeaderType==HEAD_SERVICE ? &Arc.SubHead:&Arc.FileHead;
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bool SplitHeader=(HeaderType==HEAD_FILE || HeaderType==HEAD_SERVICE) &&
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hd->SplitAfter;
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if (DataIO!=NULL && SplitHeader)
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{
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bool PackedHashPresent=Arc.Format==RARFMT50 ||
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hd->UnpVer>=20 && hd->FileHash.CRC32!=0xffffffff;
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if (PackedHashPresent &&
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!DataIO->PackedDataHash.Cmp(&hd->FileHash,hd->UseHashKey ? hd->HashKey:NULL))
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uiMsg(UIERROR_CHECKSUMPACKED, Arc.FileName, hd->FileName);
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}
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bool PrevVolEncrypted=Arc.Encrypted;
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int64 PosBeforeClose=Arc.Tell();
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if (DataIO!=NULL)
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DataIO->ProcessedArcSize+=DataIO->LastArcSize;
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Arc.Close();
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wchar NextName[NM];
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wcsncpyz(NextName,Arc.FileName,ASIZE(NextName));
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NextVolumeName(NextName,ASIZE(NextName),!Arc.NewNumbering);
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#if !defined(SFX_MODULE) && !defined(RARDLL)
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bool RecoveryDone=false;
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#endif
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bool OldSchemeTested=false;
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bool FailedOpen=false; // No more next volume open attempts if true.
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#if !defined(SILENT)
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// In -vp mode we force the pause before next volume even if it is present
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// and even if we are on the hard disk. It is important when user does not
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// want to process partially downloaded volumes preliminary.
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// 2022.01.11: In WinRAR 6.10 beta versions we tried to ignore VolumePause
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// if we could open the next volume with FMF_OPENEXCLUSIVE. But another
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// developer asked us to return the previous behavior and always prompt
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// for confirmation. They want to control when unrar continues, because
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// the next file might not be fully decoded yet. They write chunks of data
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// and then close the file again until the next chunk comes in.
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if (Cmd->VolumePause && !uiAskNextVolume(NextName,ASIZE(NextName)))
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FailedOpen=true;
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#endif
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uint OpenMode = Cmd->OpenShared ? FMF_OPENSHARED : 0;
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if (!FailedOpen)
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while (!Arc.Open(NextName,OpenMode))
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{
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// We need to open a new volume which size was not calculated
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// in total size before, so we cannot calculate the total progress
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// anymore. Let's reset the total size to zero and stop
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// the total progress.
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if (DataIO!=NULL)
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DataIO->TotalArcSize=0;
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if (!OldSchemeTested)
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{
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// Checking for new style volumes renamed by user to old style
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// name format. Some users did it for unknown reason.
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wchar AltNextName[NM];
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wcsncpyz(AltNextName,Arc.FileName,ASIZE(AltNextName));
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NextVolumeName(AltNextName,ASIZE(AltNextName),true);
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OldSchemeTested=true;
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if (Arc.Open(AltNextName,OpenMode))
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{
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wcsncpyz(NextName,AltNextName,ASIZE(NextName));
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break;
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}
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}
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#ifdef RARDLL
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if (!DllVolChange(Cmd,NextName,ASIZE(NextName)))
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{
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FailedOpen=true;
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break;
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}
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#else // !RARDLL
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#ifndef SFX_MODULE
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if (!RecoveryDone)
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{
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RecVolumesRestore(Cmd,Arc.FileName,true);
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RecoveryDone=true;
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continue;
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}
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#endif
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if (!Cmd->VolumePause && !IsRemovable(NextName))
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{
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FailedOpen=true;
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break;
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}
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#ifndef SILENT
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if (Cmd->AllYes || !uiAskNextVolume(NextName,ASIZE(NextName)))
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#endif
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{
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FailedOpen=true;
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break;
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}
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#endif // RARDLL
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}
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if (FailedOpen)
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{
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uiMsg(UIERROR_MISSINGVOL,NextName);
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Arc.Open(Arc.FileName,OpenMode);
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Arc.Seek(PosBeforeClose,SEEK_SET);
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return false;
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}
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if (Command=='T' || Command=='X' || Command=='E')
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mprintf(St(Command=='T' ? MTestVol:MExtrVol),Arc.FileName);
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Arc.CheckArc(true);
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#ifdef RARDLL
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if (!DllVolNotify(Cmd,NextName))
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return false;
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#endif
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if (Arc.Encrypted!=PrevVolEncrypted)
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{
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// There is no legitimate reason for encrypted header state to be
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// changed in the middle of volume sequence. So we abort here to prevent
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// replacing an encrypted header volume to unencrypted and adding
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// unexpected files by third party to encrypted extraction.
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uiMsg(UIERROR_BADARCHIVE,Arc.FileName);
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ErrHandler.Exit(RARX_FATAL);
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}
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if (SplitHeader)
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Arc.SearchBlock(HeaderType);
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else
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Arc.ReadHeader();
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if (Arc.GetHeaderType()==HEAD_FILE)
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{
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Arc.ConvertAttributes();
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Arc.Seek(Arc.NextBlockPos-Arc.FileHead.PackSize,SEEK_SET);
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}
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if (ShowFileName && !Cmd->DisableNames)
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{
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mprintf(St(MExtrPoints),Arc.FileHead.FileName);
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if (!Cmd->DisablePercentage)
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mprintf(L" ");
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}
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if (DataIO!=NULL)
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{
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if (HeaderType==HEAD_ENDARC)
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DataIO->UnpVolume=false;
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else
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{
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DataIO->UnpVolume=hd->SplitAfter;
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DataIO->SetPackedSizeToRead(hd->PackSize);
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}
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DataIO->AdjustTotalArcSize(&Arc);
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// Reset the size of packed data read from current volume. It is used
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// to display the total progress and preceding volumes are already
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// compensated with ProcessedArcSize, so we need to reset this variable.
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DataIO->CurUnpRead=0;
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DataIO->PackedDataHash.Init(hd->FileHash.Type,Cmd->Threads);
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}
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return true;
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}
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#ifdef RARDLL
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bool DllVolChange(CommandData *Cmd,wchar *NextName,size_t NameSize)
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{
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bool DllVolChanged=false,DllVolAborted=false;
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if (Cmd->Callback!=NULL)
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{
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wchar OrgNextName[NM];
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wcsncpyz(OrgNextName,NextName,ASIZE(OrgNextName));
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if (Cmd->Callback(UCM_CHANGEVOLUMEW,Cmd->UserData,(LPARAM)NextName,RAR_VOL_ASK)==-1)
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DllVolAborted=true;
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else
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if (wcscmp(OrgNextName,NextName)!=0)
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DllVolChanged=true;
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else
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{
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char NextNameA[NM],OrgNextNameA[NM];
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WideToChar(NextName,NextNameA,ASIZE(NextNameA));
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strncpyz(OrgNextNameA,NextNameA,ASIZE(OrgNextNameA));
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if (Cmd->Callback(UCM_CHANGEVOLUME,Cmd->UserData,(LPARAM)NextNameA,RAR_VOL_ASK)==-1)
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DllVolAborted=true;
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else
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if (strcmp(OrgNextNameA,NextNameA)!=0)
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{
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// We can damage some Unicode characters by U->A->U conversion,
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// so set Unicode name only if we see that ANSI name is changed.
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CharToWide(NextNameA,NextName,NameSize);
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DllVolChanged=true;
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}
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}
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}
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if (!DllVolChanged && Cmd->ChangeVolProc!=NULL)
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{
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char NextNameA[NM];
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WideToChar(NextName,NextNameA,ASIZE(NextNameA));
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int RetCode=Cmd->ChangeVolProc(NextNameA,RAR_VOL_ASK);
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if (RetCode==0)
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DllVolAborted=true;
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else
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CharToWide(NextNameA,NextName,NameSize);
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}
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// We quit only on 'abort' condition, but not on 'name not changed'.
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// It is legitimate for program to return the same name when waiting
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// for currently non-existent volume.
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// Also we quit to prevent an infinite loop if no callback is defined.
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if (DllVolAborted || Cmd->Callback==NULL && Cmd->ChangeVolProc==NULL)
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{
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Cmd->DllError=ERAR_EOPEN;
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return false;
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}
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return true;
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}
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#endif
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#ifdef RARDLL
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bool DllVolNotify(CommandData *Cmd,wchar *NextName)
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{
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char NextNameA[NM];
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WideToChar(NextName,NextNameA,ASIZE(NextNameA));
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if (Cmd->Callback!=NULL)
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{
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if (Cmd->Callback(UCM_CHANGEVOLUMEW,Cmd->UserData,(LPARAM)NextName,RAR_VOL_NOTIFY)==-1)
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return false;
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if (Cmd->Callback(UCM_CHANGEVOLUME,Cmd->UserData,(LPARAM)NextNameA,RAR_VOL_NOTIFY)==-1)
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return false;
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}
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if (Cmd->ChangeVolProc!=NULL)
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{
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int RetCode=Cmd->ChangeVolProc(NextNameA,RAR_VOL_NOTIFY);
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if (RetCode==0)
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return false;
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}
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return true;
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}
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#endif
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