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HPAK.pas
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HPAK.pas
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unit HPAK;
{$I HLDS.inc}
interface
uses SysUtils, Default, SDK;
function HPAK_GetDataPointer(Name: PLChar; const Res: TResource; Buffer: PPointer; Size: PUInt32): Boolean;
function HPAK_FindResource(const DH: THPAKDirectoryHeader; Hash: Pointer; Res: PResource): Boolean;
procedure HPAK_AddLump(ToCache: Boolean; Name: PLChar; Res: PResource; DataPtr: Pointer; FilePtr: PFile);
procedure HPAK_CreatePak(Name: PLChar; Res: PResource; DataPtr: Pointer; FilePtr: PFile);
procedure HPAK_FlushHostQueue;
procedure HPAK_CheckSize(Name: PLChar);
function HPAK_ResourceForHash(Name: PLChar; Hash: PMD5Hash; Res: PResource): Boolean;
procedure HPAK_Init;
procedure HPAK_CheckIntegrity(Name: PLChar);
var
// max size of HPAK, in MB.
hpk_maxsize: TCVar = (Name: 'hpk_maxsize'; Data: '4'; Flags: [FCVAR_ARCHIVE]);
implementation
uses Common, Console, Encode, FileSys, Memory, SysMain;
var
HPAKQueue: PHPAKQueue;
function HPAK_GetResourceDesc(E: PHPAKDirectory): PLChar;
begin
case E.Resource.ResourceType of
RT_DECAL: Result := 'decal';
RT_SKIN: Result := 'skin';
RT_SOUND: Result := 'sound';
RT_MODEL: Result := 'model';
RT_GENERIC: Result := 'generic';
RT_EVENTSCRIPT: Result := 'event';
RT_WORLD: Result := 'world';
else Result := '?';
end;
end;
function HPAK_ParseHeaders(Name: PLChar; out F: TFile; out Header: THPAKHeader; out DH: THPAKDirectoryHeader; MinEntries: Int = 1; NeedOpen: Boolean = True): Boolean;
var
Size: UInt;
begin
if NeedOpen and not FS_Open(F, Name, 'r') then
Print(['Error: Couldn''t open "', Name, '".'])
else
begin
if (FS_Read(F, @Header, SizeOf(Header)) < SizeOf(Header)) or
(PUInt32(@Header.FileTag)^ <> HPAK_TAG) then
Print(['Error: "', Name, '" is not a HPAK file.'])
else
if Header.Version <> HPAK_VERSION then
Print('Error: HPAK version mismatch.')
else
if (Header.FileOffset < SizeOf(Header)) or (Header.FileOffset >= FS_Size(F)) then
Print('Error: Invalid HPAK file offset.')
else
begin
FS_Seek(F, Header.FileOffset, SEEK_SET);
if FS_Read(F, @DH.NumEntries, SizeOf(DH.NumEntries)) < SizeOf(DH.NumEntries) then
Print('Error while reading HPAK directory list.')
else
if (DH.NumEntries < MinEntries) or (DH.NumEntries > HPAK_MAX_ENTRIES) then
Print('Error: HPAK has invalid number of directory entries.')
else
begin
Size := DH.NumEntries * SizeOf(THPAKDirectory);
DH.Entries := Mem_Alloc(Size);
if DH.Entries = nil then
Print('Error: HPAK_ParseHeaders: Out of memory.')
else
begin
if FS_Read(F, DH.Entries, Size) < Size then
Print('Error while reading HPAK directory data.')
else
begin
Result := True;
Exit;
end;
Mem_Free(DH.Entries);
end;
end;
end;
if NeedOpen then
FS_Close(F);
end;
Result := False;
end;
function HPAK_GetDataPointer(Name: PLChar; const Res: TResource; Buffer: PPointer; Size: PUInt32): Boolean;
var
P: PHPAKQueue;
P2: Pointer;
Buf: array[1..MAX_PATH_W] of LChar;
F: TFile;
Header: THPAKHeader;
DH: THPAKDirectoryHeader;
I: Int;
E: PHPAKDirectory;
begin
P := HPAKQueue;
while P <> nil do
if (StrIComp(P.Name, Name) = 0) and CompareMem(@P.Resource.MD5Hash, @Res.MD5Hash, SizeOf(Res.MD5Hash)) then
begin
Result := True;
if (Buffer <> nil) and (P.Size > 0) then
begin
P2 := Mem_Alloc(P.Size);
Buffer^ := P2;
if P2 = nil then
begin
Print(['HPAK_GetDataPointer: Unable to allocate ', P.Size, ' bytes for HPAK entry.']);
Result := False;
end
else
Move(P.Buffer^, P2^, P.Size);
end;
if Size <> nil then
Size^ := P.Size;
Exit;
end
else
P := P.Prev;
if Buffer <> nil then
Buffer^ := nil;
if Size <> nil then
Size^ := 0;
Result := False;
if not COM_HasExtension(Name) then
begin
Name := StrLCopy(@Buf, Name, SizeOf(Buf) - 1);
COM_DefaultExtension(Name, '.hpk');
end;
if HPAK_ParseHeaders(Name, F, Header, DH) then
begin
for I := 0 to DH.NumEntries - 1 do
begin
E := @DH.Entries[I];
if CompareMem(@E.Resource.MD5Hash, @Res.MD5Hash, SizeOf(Res.MD5Hash)) then
begin
Result := True;
if (Buffer <> nil) and (E.Size > 0) then
begin
FS_Seek(F, E.FileOffset, SEEK_SET);
P2 := Mem_Alloc(E.Size);
Buffer^ := P2;
if P2 = nil then
begin
Print(['HPAK_GetDataPointer: Unable to allocate ', E.Size, ' bytes for HPAK entry.']);
Result := False;
end
else
FS_Read(F, P2, E.Size);
end;
if Size <> nil then
Size^ := E.Size;
Break;
end;
end;
Mem_Free(DH.Entries);
FS_Close(F);
end;
end;
function HPAK_FindResource(const DH: THPAKDirectoryHeader; Hash: Pointer; Res: PResource): Boolean;
var
I: Int;
begin
for I := 0 to DH.NumEntries - 1 do
if CompareMem(Hash, @DH.Entries[I].Resource.MD5Hash, SizeOf(TMD5Hash)) then
begin
if Res <> nil then
Move(DH.Entries[I].Resource, Res^, SizeOf(TResource));
Result := True;
Exit;
end;
Result := False;
end;
procedure HPAK_AddToQueue(Name: PLChar; Res: PResource; DataPtr: Pointer; FilePtr: PFile);
var
P: PHPAKQueue;
begin
P := Mem_Alloc(SizeOf(THPAKQueue));
if P = nil then
Sys_Error(['HPAK_AddToQueue: Unable to allocate ', SizeOf(THPAKQueue), ' bytes for HPAK entry.'])
else
begin
P.Name := Mem_StrDup(Name);
if P.Name = nil then
Sys_Error(['HPAK_AddToQueue: Unable to allocate ', StrLen(Name), ' bytes for HPAK name.'])
else
begin
Move(Res^, P.Resource, SizeOf(P.Resource));
P.Size := Res.DownloadSize;
P.Buffer := Mem_Alloc(P.Size);
if P.Buffer = nil then
Sys_Error(['HPAK_AddToQueue: Unable to allocate ', P.Size, ' bytes for HPAK data.'])
else
if not ((DataPtr = nil) xor (FilePtr = nil)) then
Sys_Error('HPAK_AddToQueue: Must specify either Data or File pointer.')
else
begin
if DataPtr <> nil then
Move(DataPtr^, P.Buffer^, P.Size)
else
FS_Read(FilePtr^, P.Buffer, P.Size);
P.Prev := HPAKQueue;
HPAKQueue := P;
end;
end;
end;
end;
procedure HPAK_FlushHostQueue;
var
P: PHPAKQueue;
begin
while HPAKQueue <> nil do
begin
P := HPAKQueue;
HPAKQueue := HPAKQueue.Prev;
HPAK_AddLump(False, P.Name, @P.Resource, P.Buffer, nil);
Mem_Free(P.Name);
Mem_Free(P.Buffer);
Mem_Free(P);
end;
end;
function HPAK_HashStream(DataPtr: Pointer; FilePtr: PFile; Size: UInt; out Hash: TMD5Hash): Boolean;
var
MD5C: TMD5Context;
FilePos: Int64;
P: Pointer;
begin
Result := False;
MD5Init(MD5C);
if DataPtr <> nil then
begin
MD5Update(MD5C, DataPtr, Size);
MD5Final(Hash, MD5C);
Result := True;
end
else
begin
FilePos := FS_Tell(FilePtr^);
P := Mem_Alloc(Size + 1);
if P = nil then
Print(['HPAK_HashStream: Unable to allocate ', Size + 1, ' bytes for HPAK data.'])
else
if FS_Read(FilePtr^, P, Size) < Size then
begin
Print('HPAK_HashStream: File read error.');
Mem_Free(P);
end
else
begin
FS_Seek(FilePtr^, FilePos, SEEK_SET);
MD5Update(MD5C, P, Size);
Mem_Free(P);
MD5Final(Hash, MD5C);
Result := True;
end;
end;
end;
procedure HPAK_AddLump(ToCache: Boolean; Name: PLChar; Res: PResource; DataPtr: Pointer; FilePtr: PFile);
var
Buf, Buf2: array[1..MAX_PATH_W] of LChar;
S: PLChar;
Hash: TMD5Hash;
MD5S: TMD5HashStr;
SrcFile, DstFile: TFile;
Header: THPAKHeader;
DH, DH2: THPAKDirectoryHeader;
NewDir: PHPAKDirectory;
I: UInt;
begin
if Name = nil then
Print('HPAK_AddLump: Bad file name.')
else
if Res = nil then
Print('HPAK_AddLump: Bad resource.')
else
if not ((DataPtr = nil) xor (FilePtr = nil)) then
Print('HPAK_AddLump: Must specify either Data or File pointer.')
else
if (Res.DownloadSize < HPAK_MIN_LUMP_SIZE) or (Res.DownloadSize > HPAK_MAX_LUMP_SIZE) then
Print(['HPAK_AddLump: Bad lump size (', Res.DownloadSize, ').'])
else
if HPAK_HashStream(DataPtr, FilePtr, Res.DownloadSize, Hash) then
if not CompareMem(@Res.MD5Hash, @Hash, SizeOf(Hash)) then
begin
Print('HPAK_AddLump called with invalid lump (MD5 mismatch).');
MD5_Print(Res.MD5Hash, MD5S);
Print(['Purported: ', PLChar(@MD5S)]);
MD5_Print(Hash, MD5S);
Print(['Actual: ', PLChar(@MD5S)]);
Print('Ignoring lump addition.');
end
else
if ToCache then
HPAK_AddToQueue(Name, Res, DataPtr, FilePtr)
else
begin
if not COM_HasExtension(Name) then
begin
Name := StrLCopy(@Buf, Name, SizeOf(Buf) - 1);
COM_DefaultExtension(Name, '.hpk');
end;
if not FS_Open(SrcFile, Name, 'r') then
begin
Print(['Creating HPAK "', Name, '".']);
HPAK_CreatePak(Name, Res, DataPtr, FilePtr);
end
else
begin
S := @Buf2;
COM_StripExtension(Name, S);
COM_DefaultExtension(S, '.hp2');
if not FS_Open(DstFile, S, 'wo') then
Print(['HPAK_AddLump: Couldn''t open "', S, '" for writing.'])
else
begin
if HPAK_ParseHeaders(@Buf, SrcFile, Header, DH, 1, False) then
begin
FS_Seek(SrcFile, 0, SEEK_SET);
COM_CopyFileChunk(DstFile, SrcFile, FS_Size(SrcFile));
if HPAK_FindResource(DH, @Res.MD5Hash, nil) then
Print('HPAK_AddLump: HPAK already has this resource.')
else
begin
DH2.NumEntries := DH.NumEntries + 1;
DH2.Entries := Mem_Alloc(SizeOf(THPAKDirectory) * DH2.NumEntries);
if DH2.Entries = nil then
Print('HPAK_AddLump: Out of memory.')
else
begin
Move(DH.Entries^, DH2.Entries^, SizeOf(THPAKDirectory) * DH.NumEntries);
NewDir := @DH2.Entries[DH2.NumEntries - 1];
MemSet(NewDir^, SizeOf(NewDir^), 0);
Move(Res^, NewDir.Resource, SizeOf(NewDir.Resource));
NewDir.FileOffset := Header.FileOffset;
NewDir.Size := Res.DownloadSize;
FS_Seek(DstFile, Header.FileOffset, SEEK_SET);
if DataPtr <> nil then
FS_Write(DstFile, DataPtr, Res.DownloadSize)
else
COM_CopyFileChunk(DstFile, FilePtr^, Res.DownloadSize);
Header.FileOffset := UInt32(FS_Tell(DstFile));
FS_Write(DstFile, @DH2.NumEntries, SizeOf(DH2.NumEntries));
for I := 0 to DH2.NumEntries - 1 do
FS_Write(DstFile, @DH2.Entries[I], SizeOf(THPAKDirectory));
FS_Seek(DstFile, 0, SEEK_SET);
FS_Write(DstFile, @Header, SizeOf(Header));
Mem_Free(DH2.Entries);
Mem_Free(DH.Entries);
FS_Close(DstFile);
FS_Close(SrcFile);
FS_Unlink(Name);
FS_Rename(S, Name);
Exit;
end;
end;
Mem_Free(DH.Entries);
end;
FS_Close(DstFile);
FS_Unlink(S);
end;
FS_Close(SrcFile);
end;
end;
end;
procedure HPAK_RemoveLump(Name: PLChar; Res: PResource);
var
Buf, Buf2: array[1..MAX_PATH_W] of LChar;
DstName: PLChar;
SrcFile, DstFile: TFile;
Header: THPAKHeader;
DH, DH2: THPAKDirectoryHeader;
I, J: Int;
begin
HPAK_FlushHostQueue;
if (Name = nil) or (Name^ = #0) then
Print('HPAK_RemoveLump: Bad file name.')
else
begin
if not COM_HasExtension(Name) then
begin
Name := StrLCopy(@Buf, Name, SizeOf(Buf) - 1);
COM_DefaultExtension(Name, '.hpk');
end;
if not FS_Open(SrcFile, Name, 'r') then
Print(['HPAK_RemoveLump: Couldn''t open HPAK file "', Name, '".'])
else
begin
DstName := @Buf2;
COM_StripExtension(Name, DstName);
COM_DefaultExtension(DstName, '.hp2');
if not FS_Open(DstFile, DstName, 'wo') then
Print(['HPAK_RemoveLump: Couldn''t create HPAK file "', DstName, '".'])
else
begin
if HPAK_ParseHeaders(Name, SrcFile, Header, DH, 1, False) then
begin
if not HPAK_FindResource(DH, @Res.MD5Hash, nil) then
Print(['HPAK_RemoveLump: HPAK doesn''t contain specified lump - "', PLChar(@Res.Name), '".'])
else
begin
if DH.NumEntries = 1 then
begin
Print(['HPAK_RemoveLump: Removing final lump from HPAK, deleting HPAK: "', Name, '".']);
Mem_Free(DH.Entries);
FS_Close(DstFile);
FS_Close(SrcFile);
FS_Unlink(DstName);
FS_Unlink(Name);
Exit;
end;
FS_Write(DstFile, @Header, SizeOf(Header));
DH2.NumEntries := DH.NumEntries - 1;
DH2.Entries := Mem_Alloc(SizeOf(THPAKDirectory) * DH2.NumEntries);
if DH2.Entries = nil then
Print('HPAK_RemoveLump: Out of memory.')
else
begin
Print(['Removing "', PLChar(@Res.Name), '" from HPAK "', Name, '".']);
J := 0;
for I := 0 to DH.NumEntries - 1 do
if not CompareMem(@DH.Entries[I].Resource.MD5Hash, @Res.MD5Hash, SizeOf(Res.MD5Hash)) then
begin
Move(DH.Entries[I], DH2.Entries[J], SizeOf(THPAKDirectory));
DH2.Entries[J].FileOffset := FS_Tell(DstFile);
FS_Seek(SrcFile, DH.Entries[I].FileOffset, SEEK_SET);
COM_CopyFileChunk(DstFile, SrcFile, DH2.Entries[J].Size);
Inc(J);
end;
Header.FileOffset := UInt32(FS_Tell(DstFile));
FS_Write(DstFile, @DH2.NumEntries, SizeOf(DH2.NumEntries));
for I := 0 to DH2.NumEntries - 1 do
FS_Write(DstFile, @DH2.Entries[I], SizeOf(THPAKDirectory));
FS_Seek(DstFile, 0, SEEK_SET);
FS_Write(DstFile, @Header, SizeOf(Header));
Mem_Free(DH2.Entries);
Mem_Free(DH.Entries);
FS_Close(DstFile);
FS_Close(SrcFile);
FS_Unlink(Name);
FS_Rename(DstName, Name);
Exit;
end;
end;
Mem_Free(DH.Entries);
end;
FS_Close(DstFile);
FS_Unlink(DstName);
end;
FS_Close(SrcFile);
end;
end;
end;
function HPAK_ResourceForIndex(Name: PLChar; Index: Int; Res: PResource): Boolean;
var
Buf: array[1..MAX_PATH_W] of LChar;
F: TFile;
Header: THPAKHeader;
DH: THPAKDirectoryHeader;
begin
Result := False;
if not COM_HasExtension(Name) then
begin
Name := StrLCopy(@Buf, Name, SizeOf(Buf) - 1);
COM_DefaultExtension(Name, '.hpk');
end;
if HPAK_ParseHeaders(Name, F, Header, DH) then
begin
if (Index < 0) or (Index >= DH.NumEntries) then
Print(['The lump index is out of bounds (', Index + 1, '/', DH.NumEntries, ').'])
else
begin
if Res <> nil then
Move(DH.Entries[Index].Resource, Res^, SizeOf(TResource));
Result := True;
end;
Mem_Free(DH.Entries);
FS_Close(F);
end;
end;
function HPAK_ResourceForHash(Name: PLChar; Hash: PMD5Hash; Res: PResource): Boolean;
var
Buf: array[1..MAX_PATH_W] of LChar;
P: PHPAKQueue;
F: TFile;
Header: THPAKHeader;
DH: THPAKDirectoryHeader;
begin
P := HPAKQueue;
while P <> nil do
if (StrIComp(P.Name, Name) = 0) and CompareMem(@P.Resource.MD5Hash, Hash, SizeOf(TMD5Hash)) then
begin
if Res <> nil then
Move(P.Resource, Res^, SizeOf(TResource));
Result := True;
Exit;
end
else
P := P.Prev;
if not COM_HasExtension(Name) then
begin
Name := StrLCopy(@Buf, Name, SizeOf(Buf) - 1);
COM_DefaultExtension(Name, '.hpk');
end;
if HPAK_ParseHeaders(Name, F, Header, DH) then
begin
Result := HPAK_FindResource(DH, Hash, Res);
Mem_Free(DH.Entries);
FS_Close(F);
end
else
Result := False;
end;
procedure HPAK_List_f; cdecl;
var
Buf: array[1..MAX_PATH_W] of LChar;
Name: PLChar;
F: TFile;
Header: THPAKHeader;
DH: THPAKDirectoryHeader;
I: Int;
E: PHPAKDirectory;
Size: Double;
MD5S: TMD5HashStr;
begin
if CmdSource <> csServer then
Exit;
if Cmd_Argc <> 2 then
Print('Usage: hpklist <hpkname> - List contents of HPAK file')
else
begin
HPAK_FlushHostQueue;
Name := Cmd_Argv(1);
if not COM_HasExtension(Name) then
begin
Name := StrLCopy(@Buf, Name, SizeOf(Buf) - 1);
COM_DefaultExtension(Name, '.hpk');
end;
Print(['Listing contents for "', Name, '".']);
if HPAK_ParseHeaders(Name, F, Header, DH) then
begin
Print(['| Number of entries: ', DH.NumEntries, '/', HPAK_MAX_ENTRIES, LineBreak +
'| Type Size FileName : MD5 Hash']);
for I := 0 to DH.NumEntries - 1 do
begin
E := @DH.Entries[I];
Size := RoundTo(E.Resource.DownloadSize / 1024, -2);
MD5_Print(E.Resource.MD5Hash, MD5S);
Print(['#', I, ': ', HPAK_GetResourceDesc(E), ', size = ', Size, 'K, name = "', COM_FileBase(@E.Resource.Name, @Buf), '" : ', PLChar(@MD5S)]);
end;
Mem_Free(DH.Entries);
FS_Close(F);
end;
end;
end;
procedure HPAK_CreatePak(Name: PLChar; Res: PResource; DataPtr: Pointer; FilePtr: PFile);
var
F: TFile;
Hash: TMD5Hash;
MD5S: TMD5HashStr;
I: Int;
Header: THPAKHeader;
DH: THPAKDirectoryHeader;
E: PHPAKDirectory;
begin
if not FS_Open(F, Name, 'wo') then
Print(['HPAK_CreatePak: Couldn''t open HPAK "', Name, '" for writing.'])
else
begin
if HPAK_HashStream(DataPtr, FilePtr, Res.DownloadSize, Hash) then
if not CompareMem(@Res.MD5Hash, @Hash, SizeOf(Hash)) then
begin
Print('HPAK_CreatePak called with invalid lump (MD5 mismatch).');
MD5_Print(Res.MD5Hash, MD5S);
Print(['Purported: ', PLChar(@MD5S)]);
MD5_Print(Hash, MD5S);
Print(['Actual: ', PLChar(@MD5S)]);
Print('Ignoring lump addition.');
end
else
begin
PUInt32(@Header.FileTag)^ := HPAK_TAG;
Header.Version := HPAK_VERSION;
Header.FileOffset := 0;
FS_Write(F, @Header, SizeOf(Header));
DH.NumEntries := 1;
DH.Entries := Mem_Alloc(SizeOf(THPAKDirectory));
if DH.Entries = nil then
Print('HPAK_CreatePak: Out of memory.')
else
begin
E := @DH.Entries[0];
Move(Res^, E.Resource, SizeOf(E.Resource));
E.FileOffset := UInt32(FS_Tell(F));
E.Size := Res.DownloadSize;
if DataPtr <> nil then
FS_Write(F, DataPtr, Res.DownloadSize)
else
COM_CopyFileChunk(F, FilePtr^, Res.DownloadSize);
Header.FileOffset := FS_Tell(F);
FS_Write(F, @DH.NumEntries, SizeOf(DH.NumEntries));
for I := 0 to DH.NumEntries - 1 do
FS_Write(F, @DH.Entries[I], SizeOf(THPAKDirectory));
FS_Seek(F, 0, SEEK_SET);
FS_Write(F, @Header, SizeOf(Header));
Mem_Free(DH.Entries);
end;
end;
FS_Close(F);
end;
end;
procedure HPAK_Remove_f; cdecl;
var
Res: TResource;
Index: Int;
Name: PLChar;
begin
if CmdSource <> csServer then
Exit;
HPAK_FlushHostQueue;
if Cmd_Argc <> 3 then
Print('Usage: hpkremove <hpkname> <lump index>')
else
begin
Name := Cmd_Argv(1);
Index := StrToIntDef(Cmd_Argv(2), -1);
if (Name^ = #0) or (Index < 0) then
Print('Invalid lump index.')
else
HPAK_RemoveLump(Name, @Res);
end;
end;
procedure HPAK_Validate_f; cdecl;
var
Buf: array[1..MAX_PATH_W] of LChar;
Name: PLChar;
F: TFile;
Header: THPAKHeader;
DH: THPAKDirectoryHeader;
I: Int;
E: PHPAKDirectory;
P: Pointer;
MD5C: TMD5Context;
Hash: TMD5Hash;
MD5S: TMD5HashStr;
Size: Double;
begin
if CmdSource <> csServer then
Exit;
HPAK_FlushHostQueue;
if Cmd_Argc <> 2 then
Print('Usage: hpkval <hpkname>')
else
begin
Name := Cmd_Argv(1);
if not COM_HasExtension(Name) then
begin
Name := StrLCopy(@Buf, Name, SizeOf(Buf) - 1);
COM_DefaultExtension(Name, '.hpk');
end;
Print(['Validating "', Name, '".']);
if HPAK_ParseHeaders(Name, F, Header, DH) then
begin
Print(['| Entries: ', DH.NumEntries, '/', HPAK_MAX_ENTRIES, LineBreak + '| Type Size FileName']);
for I := 0 to DH.NumEntries - 1 do
begin
E := @DH.Entries[I];
Size := RoundTo(E.Resource.DownloadSize / 1024, -2);
Print(['#', I, ': ', HPAK_GetResourceDesc(E), ', size = ', Size, 'K, name = "', COM_FileBase(@E.Resource.Name, @Buf), '", '], False);
if (E.Size < HPAK_MIN_LUMP_SIZE) or (E.Size > HPAK_MAX_LUMP_SIZE) then
Print(['lump size is invalid'])
else
begin
P := Mem_Alloc(E.Size + 1);
FS_Seek(F, E.FileOffset, SEEK_SET);
FS_Read(F, P, E.Size);
MD5Init(MD5C);
MD5Update(MD5C, P, E.Size);
MD5Final(Hash, MD5C);
if not CompareMem(@Hash, @E.Resource.MD5Hash, SizeOf(Hash)) then
begin
Print('MD5: Mismatched');
Print('---------------');
MD5_Print(E.Resource.MD5Hash, MD5S);
Print(['File: ', PLChar(@MD5S)]);
MD5_Print(Hash, MD5S);
Print(['Actual: ', PLChar(@MD5S)]);
Print('---------------');
end
else
Print(['MD5: OK']);
Mem_Free(P);
end;
end;
FS_Close(F);
Mem_Free(DH.Entries);
end;
end;
end;
procedure HPAK_Extract_f; cdecl;
var
Buf: array[1..MAX_PATH_W] of LChar;
IntBuf, ExpandBuf: array[1..32] of LChar;
S, Name: PLChar;
Index, I: Int;
F, F2: TFile;
Header: THPAKHeader;
DH: THPAKDirectoryHeader;
E: PHPAKDirectory;
P: Pointer;
Size: Double;
begin
if CmdSource <> csServer then
Exit;
HPAK_FlushHostQueue;
if Cmd_Argc <> 3 then
Print('Usage: hpkextract <hpkname> <"all" | lump index>')
else
begin
Name := Cmd_Argv(1);
if not COM_HasExtension(Name) then
begin
Name := StrLCopy(@Buf, Name, SizeOf(Buf) - 1);
COM_DefaultExtension(Name, '.hpk');
end;
if StrIComp(Cmd_Argv(2), 'all') = 0 then
begin
Index := -1;
Print(['Extracting all lumps from "', Name, '".']);
end
else
begin
Index := StrToIntDef(Cmd_Argv(2), -1);
if Index < 0 then
begin
Print('Bad lump index, must be an unsigned integer value or "all".');
Exit;
end;
Print(['Extracting lump #', Index, ' from "', Name, '".']);
end;
if HPAK_ParseHeaders(Name, F, Header, DH) then
begin
Print(['| Entries: ', DH.NumEntries, '/', HPAK_MAX_ENTRIES, LineBreak + '| Type Size FileName']);
for I := 0 to DH.NumEntries - 1 do
if (Index = -1) or (I = Index) then
begin
E := @DH.Entries[I];
Size := RoundTo(E.Resource.DownloadSize / 1024, -2);
Print(['Extracting lump #', I, ': ', HPAK_GetResourceDesc(E), ', size = ', Size, 'K, name = "', COM_FileBase(@E.Resource.Name, @Buf), '"']);
if (E.Size < HPAK_MIN_LUMP_SIZE) or (E.Size > HPAK_MAX_LUMP_SIZE) then
Print(['Unable to extract data, size is invalid: ', E.Size, '.'])
else
begin
P := Mem_Alloc(E.Size + 1);
FS_Seek(F, E.FileOffset, SEEK_SET);
FS_Read(F, P, E.Size);
S := StrECopy(@Buf, 'hpklmps' + CorrectSlash + 'lmp');
S := StrECopy(S, ExpandString(IntToStr(I, IntBuf, SizeOf(IntBuf)), @ExpandBuf, SizeOf(ExpandBuf), 4));
StrCopy(S, '.wad');
COM_FixSlashes(@Buf);
COM_CreatePath(@Buf);
if FS_Open(F2, @Buf, 'wo') then
begin
FS_Write(F2, P, E.Size);
FS_Close(F2);
end
else
Print(['Error creating WAD file "', PLChar(@Buf), '".']);
Mem_Free(P);
end;
end;
FS_Close(F);
Mem_Free(DH.Entries);
end;
end;
end;
procedure HPAK_GetItem(Index: Int; Buffer: PLChar; L: UInt);
var
F: TFile;
Header: THPAKHeader;
DH: THPAKDirectoryHeader;
MD5S: TMD5HashStr;
S: PLChar;
begin
HPAK_FlushHostQueue;
if HPAK_ParseHeaders('custom.hpk', F, Header, DH) then
begin
if Index > DH.NumEntries - 1 then
Index := DH.NumEntries - 1;
MD5_Print(DH.Entries[Index].Resource.MD5Hash, MD5S);
if L > 36 then
begin
S := StrECopy(Buffer, '!MD5');
StrCopy(S, @MD5S);
end;
Mem_Free(DH.Entries);
FS_Close(F);
end;
end;
procedure HPAK_CheckSize(Name: PLChar);
var
Buf: array[1..MAX_PATH_W] of LChar;
Size: Single;
begin
Size := hpk_maxsize.Value;
if (Name = nil) or (Size = 0) then
Exit;
if Size > 0 then
begin
Name := StrLCopy(@Buf, Name, SizeOf(Buf) - 1);
COM_FixSlashes(Name);
COM_DefaultExtension(Name, '.hpk');
if FS_SizeByName(Name) >= Size * (1024 * 1024) then
begin
DPrint(['Size of HPAK "', Name, '" is greater than ', Size, ' MB, deleting.']);
LPrint(['Server: Size of HPAK "', Name, '" > ', Size, ' MB, deleting.'#10]);
FS_RemoveFile(Name);
end;
end
else
begin
Print('hpk_maxsize < 0, setting to 0.');
CVar_DirectSet(hpk_maxsize, '0');
end;
end;
procedure HPAK_CheckIntegrity(Name: PLChar);
var
Buf: array[1..MAX_PATH_W] of LChar;
DataBuf: array[1..HPAK_MAX_LUMP_SIZE] of Byte;
F: TFile;
Header: THPAKHeader;
DH: THPAKDirectoryHeader;
I: Int;
B: Boolean;
E: PHPAKDirectory;
MD5C: TMD5Context;
Hash: TMD5Hash;
begin
HPAK_FlushHostQueue;
if not COM_HasExtension(Name) then
begin
Name := StrLCopy(@Buf, Name, SizeOf(Buf) - 1);
COM_DefaultExtension(Name, '.hpk');
end;
if HPAK_ParseHeaders(Name, F, Header, DH) then
begin
B := False;
for I := 0 to DH.NumEntries - 1 do
begin
E := @DH.Entries[I];
if (E.Size < HPAK_MIN_LUMP_SIZE) or (E.Size > HPAK_MAX_LUMP_SIZE) then
begin
B := True;
Print(['Invalid data lump size in HPAK "', Name, '" at #', I, ': ', E.Size, '.']);
Break;
end;
FS_Seek(F, E.FileOffset, SEEK_SET);
FS_Read(F, @DataBuf, E.Size);
DataBuf[E.Size + 1] := 0;
MD5Init(MD5C);
MD5Update(MD5C, @DataBuf, E.Size);
MD5Final(Hash, MD5C);
if not CompareMem(@E.Resource.MD5Hash, @Hash, SizeOf(Hash)) then
begin
B := True;
Print(['Invalid MD5 hash in HPAK "', Name, '" at #', I, '.']);
Break;
end;
end;
Mem_Free(DH.Entries);
FS_Close(F);
if not B then
begin
DPrint(['HPAK "', Name, '" validated, no errors.']);
Exit;
end;
end;
if FS_FileExists(Name) then
begin
Print(['Deleting HPAK "', Name, '".']);
FS_RemoveFile(Name);
end;
end;
procedure HPAK_Init;
begin
CVar_RegisterVariable(hpk_maxsize);
Cmd_AddCommand('hpklist', @HPAK_List_f);
Cmd_AddCommand('hpkremove', @HPAK_Remove_f);
Cmd_AddCommand('hpkval', @HPAK_Validate_f);
Cmd_AddCommand('hpkextract', @HPAK_Extract_f);
HPAKQueue := nil;
end;
end.