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ARCHIVER.PAS
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ARCHIVER.PAS
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{/////////////////////////////////////////////////////////////////////////
//
// Dos Navigator Version 1.51 Copyright (C) 1991-99 RIT Research Labs
//
// This programs is free for commercial and non-commercial use as long as
// the following conditions are aheared to.
//
// Copyright remains RIT Research Labs, and as such any Copyright notices
// in the code are not to be removed. If this package is used in a
// product, RIT Research Labs should be given attribution as the RIT Research
// Labs of the parts of the library used. This can be in the form of a textual
// message at program startup or in documentation (online or textual)
// provided with the package.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the copyright
// notice, this list of conditions and the following disclaimer.
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// 3. All advertising materials mentioning features or use of this software
// must display the following acknowledgement:
// "Based on Dos Navigator by RIT Research Labs."
//
// THIS SOFTWARE IS PROVIDED BY RIT RESEARCH LABS "AS IS" AND ANY EXPRESS
// OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
// IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
// OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The licence and distribution terms for any publically available
// version or derivative of this code cannot be changed. i.e. this code
// cannot simply be copied and put under another distribution licence
// (including the GNU Public Licence).
//
//////////////////////////////////////////////////////////////////////////}
unit Archiver;
interface uses Views, Objects, DOS, ObjType;
type
TStr4 = String[4];
PArcFile = ^TArcFile;
TArcFile = Record
FName : PString;
Select : boolean;
Attr : Byte;
USize,PSize,
Date : Longint;
end;
PFInfo = ^TFInfo;
TFInfo = Record
FName : PathStr;
USize : LongInt;
PSize : LongInt;
Date : LongInt;
Attr : Byte;
Last : Byte;
{ 0 - not last }
{ 1 - archive end }
{ 2 - broken arc }
end;
PARJArchive = ^TARJArchive;
TARJArchive = object(TObject)
Packer,
UnPacker,
Extract,
ExtractWP,
Add,Move,Garble,
Delete,
Test,
IncludePaths,
ExcludePaths,
ForceMode,
NormalCompression,
FastCompression,
UltraCompression: PString;
ListChar: Char;
Swap: Boolean;
PutTempBefore: Byte;
constructor Load(var S: TStream);
procedure Store(var S: TStream);
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PZIPArchive = ^TZIPArchive;
TZIPArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PLHAArchive = ^TLHAArchive;
TLHAArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PARCArchive = ^TARCArchive;
TARCArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PBSAArchive = ^TBSAArchive;
TBSAArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PBS2Archive = ^TBS2Archive;
TBS2Archive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PSQZArchive = ^TSQZArchive;
TSQZArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PLIMArchive = ^TLIMArchive;
TLIMArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PCHZArchive = ^TCHZArchive;
TCHZArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PHYPArchive = ^THYPArchive;
THYPArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PHAPArchive = ^THAPArchive;
THAPArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PHAArchive = ^THAArchive;
THAArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PUC2Archive = ^TUC2Archive;
TUC2Archive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PZOOArchive = ^TZOOArchive;
TZOOArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PHPKArchive = ^THPKArchive;
THPKArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PRARArchive = ^TRARArchive;
TRARArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PTARArchive = ^TTARArchive;
TTARArchive = object(TARJArchive)
constructor Init;
function Detect: Boolean; virtual;
procedure GetFile; virtual;
function GetID: Byte; virtual;
function GetSign: TStr4; virtual;
end;
PArchiveCollection = ^TArchiveCollection;
TArchiveCollection = object(TSortedCollection)
function Compare(P1, P2: Pointer): Integer; virtual;
end;
PFileInfo = ^TFileInfo;
TFileInfo = object(TSortedCollection)
function Compare(P1, P2: Pointer): Integer; virtual;
Procedure FreeItem(Item : Pointer); virtual;
Procedure PutItem(var S: TStream; Item: Pointer); virtual;
function GetItem(var S: TStream): Pointer; virtual;
end;
PUserSaver = ^TUserSaver;
TUserSaver = object(TView)
Screen: Pointer;
SSize, SWidth: Integer;
CShape, CPos: Word;
CheckIO: Boolean;
isValid: Boolean;
constructor Init(ACheck: Boolean);
destructor Done; virtual;
constructor Load(var S: TStream);
procedure Store(var S: TStream);
function Valid(Command: Word): Boolean; virtual;
end;
const
CurrentArchive: PARJArchive = nil;
Archives: PSortedCollection = nil;
arcARC = 0;
arcARJ = 1;
arcBSA = 2;
arcBS2 = 3;
arcCHZ = 4;
arcHA = 5;
arcHAP = 6;
arcHPK = 7;
arcHYP = 8;
arcLHA = 9;
arcLIM = 10;
arcRAR = 11;
arcSQZ = 12;
arcTAR = 13;
arcUC2 = 14;
arcZIP = 15;
arcZOO = 16;
DefaultArchiver: Word = arcARJ;
DefaultArcMode: Word = 256;
var ArcFile : TBufStream;
FileInfo : TFInfo;
ArcPos : LongInt;
const
ArcFileName: PathStr = '';
PReader: PView = nil;
RARJArchiver: TStreamRec = (
ObjType: otARJArchiver;
VmtLink: Ofs(TypeOf(TARJArchive)^);
Load: @TARJArchive.Load;
Store: @TARJArchive.Store);
RZIPArchiver: TStreamRec = (
ObjType: otZIPArchiver;
VmtLink: Ofs(TypeOf(TZIPArchive)^);
Load: @TZIPArchive.Load;
Store: @TZIPArchive.Store);
RARCArchiver: TStreamRec = (
ObjType: otARCArchiver;
VmtLink: Ofs(TypeOf(TARCArchive)^);
Load: @TARCArchive.Load;
Store: @TARCArchive.Store);
RHYPArchiver: TStreamRec = (
ObjType: otHYPArchiver;
VmtLink: Ofs(TypeOf(THYPArchive)^);
Load: @THYPArchive.Load;
Store: @THYPArchive.Store);
RRARArchiver: TStreamRec = (
ObjType: otRARArchiver;
VmtLink: Ofs(TypeOf(TRARArchive)^);
Load: @TRARArchive.Load;
Store: @TRARArchive.Store);
RHAPArchiver: TStreamRec = (
ObjType: otHAPArchiver;
VmtLink: Ofs(TypeOf(THAPArchive)^);
Load: @THAPArchive.Load;
Store: @THAPArchive.Store);
RHAArchiver: TStreamRec = (
ObjType: otHAArchiver;
VmtLink: Ofs(TypeOf(THAArchive)^);
Load: @THAArchive.Load;
Store: @THAArchive.Store);
RSQZArchiver: TStreamRec = (
ObjType: otSQZArchiver;
VmtLink: Ofs(TypeOf(TSQZArchive)^);
Load: @TSQZArchive.Load;
Store: @TSQZArchive.Store);
RBSAArchiver: TStreamRec = (
ObjType: otBSAArchiver;
VmtLink: Ofs(TypeOf(TBSAArchive)^);
Load: @TBSAArchive.Load;
Store: @TBSAArchive.Store);
RBS2Archiver: TStreamRec = (
ObjType: otBS2Archiver;
VmtLink: Ofs(TypeOf(TBS2Archive)^);
Load: @TBS2Archive.Load;
Store: @TBS2Archive.Store);
RCHZArchiver: TStreamRec = (
ObjType: otCHZArchiver;
VmtLink: Ofs(TypeOf(TCHZArchive)^);
Load: @TCHZArchive.Load;
Store: @TCHZArchive.Store);
RLHAArchiver: TStreamRec = (
ObjType: otLHAArchiver;
VmtLink: Ofs(TypeOf(TLHAArchive)^);
Load: @TLHAArchive.Load;
Store: @TLHAArchive.Store);
RZOOArchiver: TStreamRec = (
ObjType: otZOOArchiver;
VmtLink: Ofs(TypeOf(TZOOArchive)^);
Load: @TZOOArchive.Load;
Store: @TZOOArchive.Store);
RUC2Archiver: TStreamRec = (
ObjType: otUC2Archiver;
VmtLink: Ofs(TypeOf(TUC2Archive)^);
Load: @TUC2Archive.Load;
Store: @TUC2Archive.Store);
RLIMArchiver: TStreamRec = (
ObjType: otLIMArchiver;
VmtLink: Ofs(TypeOf(TLIMArchive)^);
Load: @TLIMArchive.Load;
Store: @TLIMArchive.Store);
RHPKArchiver: TStreamRec = (
ObjType: otHPKArchiver;
VmtLink: Ofs(TypeOf(THPKArchive)^);
Load: @THPKArchive.Load;
Store: @THPKArchive.Store);
RTARArchiver: TStreamRec = (
ObjType: otTARArchiver;
VmtLink: Ofs(TypeOf(TTARArchive)^);
Load: @TTARArchive.Load;
Store: @TTARArchive.Store);
RArchiveCollection: TStreamRec = (
ObjType: otArchiveCollection;
VmtLink: Ofs(TypeOf(TArchiveCollection)^);
Load: @TArchiveCollection.Load;
Store: @TArchiveCollection.Store);
procedure LoadArchiveSet;
Procedure ReadArcList;
Function DetectArchive: PArjArchive;
Procedure SetupArchive(ArchCommand: Word);
Function ArchiveFiles(const S: String; Files: PCollection; MoveMode: Boolean; Owner: Pointer): Boolean;
procedure MakeArchive(S: String; Files: PCollection; MoveMode: Boolean; Owner: Pointer);
procedure UnarchiveFiles(const FName: String);
procedure InsertUserSaver(ACheck: Boolean);
implementation
uses Advance, DNApp, Drivers, Commands, Dialogs, FilesCol, FViewer,
StartUp, RStrings, Memory, Messages, ArcView, FileCopy, HistList,
FStorage, Menus;
const CDir: String = '';
{ ------------------------------- Collections ----------------------------- }
function TArchiveCollection.Compare;
begin
if PARJArchive(P1)^.GetID < PARJArchive(P2)^.GetID then Compare := -1 else
if PARJArchive(P1)^.GetID > PARJArchive(P2)^.GetID then Compare := 1 else
Compare := 0;
end;
Procedure TFileInfo.FreeItem;
begin
if Item <> nil then
begin
DisposeStr(PArcFile(Item)^.FName);
Dispose(PArcFile(Item));
end;
end;
function TFileInfo.Compare;
var F1: PArcFile absolute P1;
F2: PArcFile absolute P2;
begin
if F1^.FName^ = F2^.FName^ then Compare := 0
else Compare := 1 - 2*Integer(F1^.FName^ > F2^.FName^);
end;
Procedure TFileInfo.PutItem;
begin
S.WriteStr(PArcFile(Item)^.FName);
S.Write(PArcFile(Item)^.Select, 1*2+3*4);
end;
function TFileInfo.GetItem;
var P: PArcFile;
PS: PString;
begin
New(P);
P^.FName := S.ReadStr;
S.Read(P^.Select, 1*2+3*4);
GetItem := P;
end;
{ --------------------------- All archives -------------------------------- }
constructor TARJArchive.Load;
begin
Packer := S.ReadStr;
UnPacker := S.ReadStr;
Extract := S.ReadStr;
ExtractWP := S.ReadStr;
Add := S.ReadStr;
Move := S.ReadStr;
Delete := S.ReadStr;
Garble := S.ReadStr;
Test := S.ReadStr;
IncludePaths := S.ReadStr;
ExcludePaths := S.ReadStr;
ForceMode := S.ReadStr;
NormalCompression := S.ReadStr;
FastCompression := S.ReadStr;
UltraCompression := S.ReadStr;
PutTempBefore := 3;
S.Read(ListChar, SizeOf(ListChar) +
SizeOf(Swap));
end;
procedure TARJArchive.Store;
begin
S.WriteStr(Packer);
S.WriteStr(UnPacker);
S.WriteStr(Extract);
S.WriteStr(ExtractWP);
S.WriteStr(Add);
S.WriteStr(Move);
S.WriteStr(Delete);
S.WriteStr(Garble);
S.WriteStr(Test);
S.WriteStr(IncludePaths);
S.WriteStr(ExcludePaths);
S.WriteStr(ForceMode);
S.WriteStr(NormalCompression);
S.WriteStr(FastCompression);
S.WriteStr(UltraCompression);
S.Write(ListChar, SizeOf(ListChar) +
SizeOf(Swap));
end;
{ ----------------------------- ARJ ------------------------------------}
constructor TARJArchive.Init;
begin
inherited Init;
Packer := NewStr('ARJ.EXE');
UnPacker := NewStr('ARJ.EXE');
Extract := NewStr('e');
ExtractWP := NewStr('x');
Add := NewStr('a');
Move := NewStr('m');
Delete := NewStr('d');
Garble := NewStr('-g');
Test := NewStr('t');
IncludePaths := NewStr('');
ExcludePaths := NewStr('-e');
ForceMode := NewStr('-y');
NormalCompression := NewStr('-m1');
FastCompression := NewStr('-m3');
UltraCompression := NewStr('-jm');
ListChar := '!';
PutTempBefore := 0;
Swap := True;
end;
function TARJArchive.GetID;
begin
GetID := arcARJ;
end;
function TARJArchive.GetSign;
begin
GetSign := 'ARJ:';
end;
function TARJArchive.Detect;
var I,J: Word;
L: LongInt;
S: String;
begin
ArcFile.Read(I, 2);
if (I <> 60000) and (ArcPos > 0) then ArcFile.Read(I, 2);
L := ArcFile.GetPos;
Detect:=(I=60000);
if i=60000
then begin
{** here must be comment reading **}
ArcFile.Read(I,2);
ArcFile.Seek(L + I + 8);
end
else
begin
ArcFile.Seek(ArcPos);
end;
end;
procedure TARJArchive.GetFile;
const
GARBLED_FLAG = $01;
OLD_SECURED_FLAG = $02;
VOLUME_FLAG = $04;
EXTFILE_FLAG = $08;
PATHSYM_FLAG = $10;
BACKUP_FLAG = $20;
SECURED_FLAG = $40;
var HS,i : Word;
FP : Longint;
s : PathStr;
C : Char;
Extr : LongInt;
h : record
First_Hdr_Size : Byte;
Version : Byte;
MinVer : Byte;
Host_OS : Byte;
ARJ_Flags : Byte;
Method : Byte;
File_Type : Byte;
Reserved : Byte;
Date_Time : LongInt;
Compressed_Size : LongInt;
Original_Size : LongInt;
Original_CRC : LongInt;
Filespec_Pos : Word;
File_Acs_Mode : Word;
Host_Data : Word;
end;
begin
ArcFile.Read(i,2);
if (i<>60000) or (ArcFile.Status <> 0) then begin FileInfo.Last:=2;Exit;end;
ArcFile.Read(HS,2);
if (HS=0) then begin FileInfo.Last:=1;Exit;end;
FP := ArcFile.GetPos;
ArcFile.Read(h, SizeOf(h));
with FileInfo do
begin
Date := h.Date_Time;
PSize := h.Compressed_Size;
USize := h.Original_Size;
if (h.ARJ_Flags and
((OLD_SECURED_FLAG or GARBLED_FLAG or SECURED_FLAG)))=0
then Attr := 0 else Attr := Hidden;
if h.File_Type = 3 then Attr := Attr or Directory;
end;
if h.ARJ_Flags and EXTFILE_FLAG<>0 then
begin
ArcFile.Read(Extr, 4);
if Extr<>0 then with FileInfo do Attr := Attr or SysFile;
end else Extr := 0;
S := '';
repeat ArcFile.Read(C,1); if C <> #0 then S := S + C else Break
until ArcFile.Status <> stOK;
While Pos('/', S) > 0 do S[Pos('/', S)] := '\';
if (ArcFile.Status <> stOK) then begin FileInfo.Last:=2;Exit;end;
FileInfo.FName := S; FileInfo.Last := 0;
ArcFile.Seek(FP+HS+4);
Repeat
ArcFile.Read(i,2);
if i>0 then ArcFile.Seek(ArcFile.GetPos+i+4);
Until (i=0) or (ArcFile.Status <> stOK);
ArcFile.Seek(ArcFile.GetPos+Fileinfo.PSize);
end;
{ ----------------------------- ZIP ------------------------------------}
constructor TZIPArchive.Init;
begin
TObject.Init;
Packer := NewStr('PKZIP.EXE');
UnPacker := NewStr('PKUNZIP.EXE');
Extract := NewStr(' ');
ExtractWP := NewStr('-d');
Add := NewStr('-r');
Move := NewStr('-mr');
Delete := NewStr('-d');
Garble := NewStr('-s');
Test := NewStr('-t');
IncludePaths := NewStr('-P');
ExcludePaths := NewStr('');
ForceMode := NewStr('');
NormalCompression := NewStr('-en');
FastCompression := NewStr('-ef');
UltraCompression := NewStr('-ex');
ListChar := '@';
PutTempBefore := 1;
Swap := False;
end;
function TZIPArchive.GetID;
begin
GetID := arcZIP;
end;
function TZIPArchive.GetSign;
begin
GetSign := 'ZIP:';
end;
function TZIPArchive.Detect;
var i: LongInt;
begin
ArcFile.Read(i,4);
Detect:=(i=$04034b50);
ArcFile.Seek(ArcPos);
end;
type
TZIPLocalHdr = record
ID: LongInt;
Extract: Word;
GeneralPurpose: Word;
Method: Word;
LastModDate: LongInt;
CRC32: LongInt;
CompressedSize: LongInt;
OriginalSize: LongInt;
FNameLength: Word;
ExtraField: Word;
end;
Procedure TZIPArchive.GetFile;
label 1;
var HS, I: Word;
FP,FPP: Longint;
P: TZIPLocalHdr;
s: String;
begin
FP := ArcFile.GetPos;
1:
ArcFile.Read(P.ID,4);
if (P.ID and $FFFF <> $4B50) or (ArcFile.Status <> stOK) then
begin
FPP := FP;
FP := SearchFileStr(@ArcFile, 'PK'#03#04, FP, On, Off, Off, Off);
if FP > 0 then begin ArcFile.Seek(FP); Goto 1 end;
FP := SearchFileStr(@ArcFile, 'PK'#01#02, FPP, On, Off, Off, Off);
if FP > 0 then begin ArcFile.Seek(FP); Goto 1 end;
FP := SearchFileStr(@ArcFile, 'PK'#05#06, FPP, On, Off, Off, Off);
FileInfo.Last:=2;Exit;
end;
if (P.ID = $06054B50) or (P.ID = $02014b50) then begin FileInfo.Last:=1;Exit;end;
ArcFile.Read(P.Extract,SizeOf(P)-4);
if (ArcFile.Status <> stOK) or (P.FNameLength > 255) then
begin FileInfo.Last:=2;Exit;end;
ArcFile.Read(S[1], P.FNameLength); S[0] := Char(P.FNameLength);
While Pos('/', S) > 0 do S[Pos('/', S)] := '\';
FileInfo.FName := S; FileInfo.Last := 0;
FileInfo.Attr := P.GeneralPurpose and 1;
FileInfo.USize := P.OriginalSize;
FileInfo.PSize := P.CompressedSize;
FileInfo.Date := P.LastModDate;
ArcFile.Seek(ArcFile.GetPos + P.ExtraField + P.CompressedSize);
end;
{ ----------------------------- LHA ------------------------------------}
constructor TLHAArchive.Init;
begin
TObject.Init;
Packer := NewStr('LHA.EXE');
UnPacker := NewStr('LHA.EXE');
Extract := NewStr('e');
ExtractWP := NewStr('x');
Add := NewStr('a -r -x');
Move := NewStr('m -r -x');
Delete := NewStr(' ');
Garble := NewStr('p');
Test := NewStr('t');
IncludePaths := NewStr('-x');
ExcludePaths := NewStr('');
ForceMode := NewStr('-m');
NormalCompression := NewStr('');
FastCompression := NewStr('-z');
UltraCompression := NewStr('');
ListChar := '@';
PutTempBefore := 0;
Swap := False;
end;
function TLHAArchive.GetID;
begin
GetID := arcLHA;
end;
function TLHAArchive.GetSign;
begin
GetSign := 'LHA:';
end;
type LHAHdr = record
Size: Byte;
SUM: Byte;
MethodID: Array[1..5] of Char;
PackedSize: LongInt;
OriginSize: LongInt;
Date: LongInt;
Attr: Byte;
Level: Byte;
Name: Array[0..255] of Char;
end;
function TLHAArchive.Detect;
var i: LongInt;
P: LHAHdr;
begin
ArcFile.Read(P,SizeOf(P)-256);
Detect:=False;
if (Pos(P.MethodID, '-lh1--lh0--lh2--lh3--lh4--lh5--lzs--lz4--lz5--lhd-')+4) mod 5 = 0
then begin
Detect:=True;
ArcFile.Seek(ArcPos);
end
else ArcFile.Seek(ArcPos);
end;
Procedure TLHAArchive.GetFile;
var HS,i : Word;
FP : Longint;
P : LHAHdr;
s : String;
begin
ArcFile.Read(P.Size,1);
if P.Size > 1 then ArcFile.Read(P.Sum,P.Size-1);
if (P.Size = 0) then begin FileInfo.Last:=1;Exit;end;
if (ArcFile.Status <> stOK) then begin FileInfo.Last:=2;Exit;end;
System.Move(P.Name, S, Byte(P.Name[0])+1);
Replace('/', '\', S);
FileInfo.FName := S; FileInfo.Last := 0;
FileInfo.Attr := P.Attr;
FileInfo.USize := P.OriginSize;
FileInfo.PSize := P.PackedSize;
FileInfo.Date := P.Date;
ArcFile.Read(HS, 2);
FP := ArcFile.GetPos;
if P.Level <> 0 then
begin
ArcFile.Read(P.Name, Min(255, HS));
if (P.Name[0] = #2) then
begin
I := 1; S := '';
while (I < Min(255,HS)) and (P.Name[I] > #31) do
begin AddStr(S, P.Name[I]); Inc(I) end;
Replace(#255, '\', S);
Replace('/', '\', S);
System.Insert(S, FileInfo.FName, 1);
end;
end;
ArcFile.Seek(FP + P.PackedSize);
end;
{ ----------------------------- ARC ------------------------------------}
constructor TARCArchive.Init;
begin
TObject.Init;
Packer := NewStr('PAK.EXE');
UnPacker := NewStr('PAK.EXE');
Extract := NewStr('E');
ExtractWP := NewStr('E /WA');
Add := NewStr('A');
Move := NewStr('A /M');
Delete := NewStr('D');
Garble := NewStr('/G');
Test := NewStr('T');
ListChar := '@';
PutTempBefore := 2;
Swap := True;
end;
function TARCArchive.GetID;
begin
GetID := arcARC;
end;
function TARCArchive.GetSign;
begin
GetSign := 'ARC:';
end;
type
ARCHdr = record
Mark: Char;
Version: Byte;
Name: Array[1..13] of Char;
PackedSize: LongInt;
Date: LongInt;
CRC: Word;
OriginSize: LongInt;
end;
function TARCArchive.Detect;
var P: ARCHdr;
procedure More;
var i: byte;
c: char;
begin
i := 0;
while i<13 do
begin
Inc(i);
c := P.Name[i];
if c = #0 then Break;
if c <#32 then Exit;
end;
if i <= 2 then Exit;
if P.PackedSize<0 then Exit;
if P.OriginSize<0 then Exit;
Detect := True;
end;
begin
ArcFile.Read(P,SizeOf(P));
Detect := False;
if (ArcFile.Status = stOK) and (P.Mark = ^Z) and (P.Version < 20) then More;
ArcFile.Seek(ArcPos);
end;
Procedure TARCArchive.GetFile;
var HS,i : Word;
FP : Longint;
P : ARCHdr;
s : String;
begin
ArcFile.Read(P,2);
if (P.Mark = ^Z) and (P.Version <> 0) and (ArcFile.Status = stOK) then ArcFile.Read(P.Name,SizeOf(P)-2);
if (P.Version = 0) then begin FileInfo.Last:=1;Exit;end;
if (ArcFile.Status <> stOK) then begin FileInfo.Last:=2;Exit;end;
i := 1; S := ' ';
While (I < 14) and (P.Name[I] <> #0) do
begin S := S + P.Name[I]; Inc(I); end;
While Pos('/', S) > 0 do S[Pos('/', S)] := '\';
FileInfo.FName := S;
FileInfo.Last := 0;
FileInfo.Attr := 0;
FileInfo.USize := P.OriginSize;
FileInfo.PSize := P.PackedSize;
FileInfo.Date := (P.Date shr 16) or (P.Date shl 16);
ArcFile.Seek(ArcFile.GetPos + P.PackedSize);
end;
{ ----------------------------- HA ------------------------------------}
constructor THAArchive.Init;
begin
TObject.Init;
Packer := NewStr('HA.EXE');
UnPacker := NewStr('HA.EXE');
Extract := NewStr('ey');
ExtractWP := NewStr('xy');
Add := NewStr('a');
Move := NewStr('am');
Delete := NewStr('d');
Garble := NewStr(' ');
Test := NewStr('t');
IncludePaths := NewStr('');
ExcludePaths := NewStr('+e');
ForceMode := NewStr('+y');
NormalCompression := NewStr('+1');
FastCompression := NewStr('+0');
UltraCompression := NewStr('+2');
ListChar := ' ';
PutTempBefore := 2;
Swap := True;
end;
function THAArchive.GetID;
begin
GetID := arcHA;
end;
function THAArchive.GetSign;
begin
GetSign := 'HA:';
end;
type
HAHdr = record
Method: Byte;
PackedSize: LongInt;
OriginSize: LongInt;
CRC: LongInt;
Date: LongInt;
end;
Function THAArchive.Detect;
var
S: Array[1..2] of Char;
P: HAHdr;
begin
ArcFile.Read(S, 2);
Detect:=False;
if (ArcFile.Status = stOK) and (S = 'HA')
then begin
Detect:=True;
ArcFile.Seek(ArcPos+4);
end
else ArcFile.Seek(ArcPos);
end;
Procedure THAArchive.GetFile;
var HS,i : Word;
FP : Longint;
P : HAHdr;
S : String;
C : Char;
DT : DateTime;
begin
ArcFile.Read(P,SizeOf(P));
if (ArcFile.Status <> stOK) then begin FileInfo.Last:=1;Exit;end;
{if (P.Method > 20) then begin FileInfo.Last:=2;Exit;end;}
FileInfo.Last := 0;