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Delphi 7zip API调用封装单元

作者:admin 来源: 日期:2011/8/19 20:52:04 人气: 标签:

delphi的示例程序从这里下载:http://www.progdigy.com/files/sevenzip.zip

This API use the 7-zip dll (7z.dll) to read and write all 7-zip supported archive formats.

- Autor: Henri Gourvest <hgourvest@progdigy.com>
- Licence: MPL1.1
- Date: 15/04/2009
- Version: 1.1

Reading archive:

Extract to path:

 with CreateInArchive(CLSID_CFormatZip) do
begin
OpenFile('c:\test.zip');
ExtractTo(
'c:\test');
end;

Get file list:

 with CreateInArchive(CLSID_CFormat7z) do
begin
OpenFile('c:\test.7z');
for i := 0 to NumberOfItems - 1 do
if not ItemIsFolder[i] then
Writeln(ItemPath[i]);
end;

Extract to stream

 with CreateInArchive(CLSID_CFormat7z) do
begin
OpenFile('c:\test.7z');
for i := 0 to NumberOfItems - 1 do
if not ItemIsFolder[i] then
ExtractItem(i, stream, false);
end;

Extract "n" Items

function GetStreamCallBack(sender: Pointer; index: Cardinal;
var outStream: ISequentialOutStream): HRESULT; stdcall;
begin
case index of ...
outStream := T7zStream.Create(aStream, soReference);
Result := S_OK;
end;

procedure TMainForm.ExtractClick(Sender: TObject);
var
i: integer;
items:
array[0..2] of Cardinal;
begin
with CreateInArchive(CLSID_CFormat7z) do
begin
OpenFile('c:\test.7z');
// items must be sorted by index!
items[0] := 0;
items[
1] := 1;
items[
2] := 2;
ExtractItems(@items, Length(items), false,
nil, GetStreamCallBack);
end;
end;

Open stream

 with CreateInArchive(CLSID_CFormatZip) do
begin
OpenStream(T7zStream.Create(TFileStream.Create('c:\test.zip', fmOpenRead), soOwned));
OpenStream(aStream, soReference);
...
end;

Progress bar

 function ProgressCallback(sender: Pointer; total: boolean; value: int64): HRESULT; stdcall;
begin
if total then
Mainform.ProgressBar.Max := value else
Mainform.ProgressBar.Position := value;
Result := S_OK;
end;

procedure TMainForm.ExtractClick(Sender: TObject);
begin
with CreateInArchive(CLSID_CFormatZip) do
begin
OpenFile('c:\test.zip');
SetProgressCallback(
nil, ProgressCallback);
...
end;
end;

Password

 function PasswordCallback(sender: Pointer; var password: WideString): HRESULT; stdcall;
begin
// call a dialog box ...
password := 'password';
Result := S_OK;
end;

procedure TMainForm.ExtractClick(Sender: TObject);
begin
with CreateInArchive(CLSID_CFormatZip) do
begin
// using callback
SetPasswordCallback(nil, PasswordCallback);
// or setting password directly
SetPassword('password');
OpenFile(
'c:\test.zip');
...
end;
end;

Writing archive

 procedure TMainForm.ExtractAllClick(Sender: TObject);
var
Arch: I7zOutArchive;
begin
Arch := CreateOutArchive(CLSID_CFormat7z);
// add a file
Arch.AddFile('c:\test.bin', 'folder\test.bin');
// add files using willcards and recursive search
Arch.AddFiles('c:\test', 'folder', '*.pas;*.dfm', true);
// add a stream
Arch.AddStream(aStream, soReference, faArchive, CurrentFileTime, CurrentFileTime, 'folder\test.bin', false, false);
// compression level
SetCompressionLevel(Arch, 5);
// compression method if <> LZMA
SevenZipSetCompressionMethod(Arch, m7BZip2);
// add a progress bar ...
Arch.SetProgressCallback(...);
// set a password if necessary
Arch.SetPassword('password');
// Save to file
Arch.SaveToFile('c:\test.zip');
// or a stream
Arch.SaveToStream(aStream);
end;

 

sevenzip.pas

(********************************************************************************)
(* 7-ZIP DELPHI API *)
(* *)
(* The contents of this file are subject to the Mozilla Public License Version *)
(* 1.1 (the "License"); you may not use this file except in compliance with the *)
(* License. You may obtain a copy of the License at http://www.mozilla.org/MPL/ *)
(* *)
(* Software distributed under the License is distributed on an "AS IS" basis, *)
(* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for *)
(* the specific language governing rights and limitations under the License. *)
(* *)
(* Unit owner : Henri Gourvest <<a href="mailto:hgourvest@gmail.com">hgourvest@gmail.com</a>> *)
(* V1.2 *)
(********************************************************************************)
unit sevenzip;
{$ALIGN ON}
{$MINENUMSIZE 4}
{$WARN SYMBOL_PLATFORM OFF}
interface
uses SysUtils, Windows, ActiveX, Classes, Contnrs;
type
PVarType = ^TVarType;
PCardArray = ^TCardArray;
TCardArray = array[0..MaxInt div SizeOf(Cardinal) - 1] of Cardinal;
{$IFNDEF UNICODE}
UnicodeString = WideString;
{$ENDIF}
//******************************************************************************
// PropID.h
//******************************************************************************
const
kpidNoProperty = 0;
kpidHandlerItemIndex = 2;
kpidPath = 3; // VT_BSTR
kpidName = 4; // VT_BSTR
kpidExtension = 5; // VT_BSTR
kpidIsFolder = 6; // VT_BOOL
kpidSize = 7; // VT_UI8
kpidPackedSize = 8; // VT_UI8
kpidAttributes = 9; // VT_UI4
kpidCreationTime = 10; // VT_FILETIME
kpidLastAccessTime = 11; // VT_FILETIME
kpidLastWriteTime = 12; // VT_FILETIME
kpidSolid = 13; // VT_BOOL
kpidCommented = 14; // VT_BOOL
kpidEncrypted = 15; // VT_BOOL
kpidSplitBefore = 16; // VT_BOOL
kpidSplitAfter = 17; // VT_BOOL
kpidDictionarySize = 18; // VT_UI4
kpidCRC = 19; // VT_UI4
kpidType = 20; // VT_BSTR
kpidIsAnti = 21; // VT_BOOL
kpidMethod = 22; // VT_BSTR
kpidHostOS = 23; // VT_BSTR
kpidFileSystem = 24; // VT_BSTR
kpidUser = 25; // VT_BSTR
kpidGroup = 26; // VT_BSTR
kpidBlock = 27; // VT_UI4
kpidComment = 28; // VT_BSTR
kpidPosition = 29; // VT_UI4
kpidPrefix = 30; // VT_BSTR
kpidNumSubDirs = 31; // VT_UI4
kpidNumSubFiles = 32; // VT_UI4
kpidUnpackVer = 33; // VT_UI1
kpidVolume = 34; // VT_UI4
kpidIsVolume = 35; // VT_BOOL
kpidOffset = 36; // VT_UI8
kpidLinks = 37; // VT_UI4
kpidNumBlocks = 38; // VT_UI4
kpidNumVolumes = 39; // VT_UI4
kpidTimeType = 40; // VT_UI4
kpidBit64 = 41; // VT_BOOL
kpidBigEndian = 42; // VT_BOOL
kpidCpu = 43; // VT_BSTR
kpidPhySize = 44; // VT_UI8
kpidHeadersSize = 45; // VT_UI8
kpidChecksum = 46; // VT_UI4
kpidCharacts = 47; // VT_BSTR
kpidVa = 48; // VT_UI8
kpidTotalSize = $1100; // VT_UI8
kpidFreeSpace = kpidTotalSize + 1; // VT_UI8
kpidClusterSize = kpidFreeSpace + 1; // VT_UI8
kpidVolumeName = kpidClusterSize + 1; // VT_BSTR
kpidLocalName = $1200; // VT_BSTR
kpidProvider = kpidLocalName + 1; // VT_BSTR
kpidUserDefined = $10000;
//******************************************************************************
// IProgress.h
//******************************************************************************
type
IProgress = interface(IUnknown)
['{23170F69-40C1-278A-0000-000000050000}']
function SetTotal(total: Int64): HRESULT; stdcall;
function SetCompleted(completeValue: PInt64): HRESULT; stdcall;
end;
//******************************************************************************
// IPassword.h
//******************************************************************************
ICryptoGetTextPassword = interface(IUnknown)
['{23170F69-40C1-278A-0000-000500100000}']
function CryptoGetTextPassword(var password: TBStr): HRESULT; stdcall;
end;
ICryptoGetTextPassword2 = interface(IUnknown)
['{23170F69-40C1-278A-0000-000500110000}']
function CryptoGetTextPassword2(passwordIsDefined: PInteger; var password: TBStr): HRESULT; stdcall;
end;
//******************************************************************************
// IStream.h
// "23170F69-40C1-278A-0000-000300xx0000"
//******************************************************************************
ISequentialInStream = interface(IUnknown)
['{23170F69-40C1-278A-0000-000300010000}']
function Read(data: Pointer; size: Cardinal; processedSize: PCardinal): HRESULT; stdcall;
(*
Out: if size != 0, return_value = S_OK and (*processedSize == 0),
then there are no more bytes in stream.
if (size > 0) && there are bytes in stream,
this function must read at least 1 byte.
This function is allowed to read less than number of remaining bytes in stream.
You must call Read function in loop, if you need exact amount of data
*)
end;
ISequentialOutStream = interface(IUnknown)
['{23170F69-40C1-278A-0000-000300020000}']
function Write(data: Pointer; size: Cardinal; processedSize: PCardinal): HRESULT; stdcall;
(*
if (size > 0) this function must write at least 1 byte.
This function is allowed to write less than "size".
You must call Write function in loop, if you need to write exact amount of data
*)
end;
IInStream = interface(ISequentialInStream)
['{23170F69-40C1-278A-0000-000300030000}']
function Seek(offset: Int64; seekOrigin: Cardinal; newPosition: PInt64): HRESULT; stdcall;
end;
IOutStream = interface(ISequentialOutStream)
['{23170F69-40C1-278A-0000-000300040000}']
function Seek(offset: Int64; seekOrigin: Cardinal; newPosition: PInt64): HRESULT; stdcall;
function SetSize(newSize: Int64): HRESULT; stdcall;
end;
IStreamGetSize = interface(IUnknown)
['{23170F69-40C1-278A-0000-000300060000}']
function GetSize(size: PInt64): HRESULT; stdcall;
end;
IOutStreamFlush = interface(IUnknown)
['{23170F69-40C1-278A-0000-000300070000}']
function Flush: HRESULT; stdcall;
end;
//******************************************************************************
// IArchive.h
//******************************************************************************
// MIDL_INTERFACE("23170F69-40C1-278A-0000-000600xx0000")
//#define ARCHIVE_INTERFACE_SUB(i, base, x) \
//DEFINE_GUID(IID_ ## i, \
//0x23170F69, 0x40C1, 0x278A, 0x00, 0x00, 0x00, 0x06, 0x00, x, 0x00, 0x00); \
//struct i: public base
//#define ARCHIVE_INTERFACE(i, x) ARCHIVE_INTERFACE_SUB(i, IUnknown, x)
type
// NFileTimeType
NFileTimeType = (
kWindows = 0,
kUnix,
kDOS
);
// NArchive::
NArchive = (
kName = 0, // string
kClassID, // GUID
kExtension, // string zip rar gz
kAddExtension, // sub archive: tar
kUpdate, // bool
kKeepName, // bool
kStartSignature, // string[4] ex: PK.. 7z.. Rar!
kFinishSignature,
kAssociate
);
// NArchive::NExtract::NAskMode
NAskMode = (
kExtract = 0,
kTest,
kSkip
);
// NArchive::NExtract::NOperationResult
NExtOperationResult = (
kOK = 0,
kUnSupportedMethod,
kDataError,
kCRCError
);
// NArchive::NUpdate::NOperationResult
NUpdOperationResult = (
kOK_ = 0,
kError
);
IArchiveOpenCallback = interface
['{23170F69-40C1-278A-0000-000600100000}']
function SetTotal(files, bytes: PInt64): HRESULT; stdcall;
function SetCompleted(files, bytes: PInt64): HRESULT; stdcall;
end;
IArchiveExtractCallback = interface(IProgress)
['{23170F69-40C1-278A-0000-000600200000}']
function GetStream(index: Cardinal; var outStream: ISequentialOutStream;
askExtractMode: NAskMode): HRESULT; stdcall;
// GetStream OUT: S_OK - OK, S_FALSE - skeep this file
function PrepareOperation(askExtractMode: NAskMode): HRESULT; stdcall;
function SetOperationResult(resultEOperationResult: NExtOperationResult): HRESULT; stdcall;
end;
IArchiveOpenVolumeCallback = interface
['{23170F69-40C1-278A-0000-000600300000}']
function GetProperty(propID: PROPID; var value: OleVariant): HRESULT; stdcall;
function GetStream(const name: PWideChar; var inStream: IInStream): HRESULT; stdcall;
end;
IInArchiveGetStream = interface
['{23170F69-40C1-278A-0000-000600400000}']
function GetStream(index: Cardinal; var stream: ISequentialInStream ): HRESULT; stdcall;
end;
IArchiveOpenSetSubArchiveName = interface
['{23170F69-40C1-278A-0000-000600500000}']
function SetSubArchiveName(name: PWideChar): HRESULT; stdcall;
end;
IInArchive = interface
['{23170F69-40C1-278A-0000-000600600000}']
function Open(stream: IInStream; const maxCheckStartPosition: PInt64;
openArchiveCallback: IArchiveOpenCallback): HRESULT; stdcall;
function Close: HRESULT; stdcall;
function GetNumberOfItems(var numItems: CArdinal): HRESULT; stdcall;
function GetProperty(index: Cardinal; propID: PROPID; var value: OleVariant): HRESULT; stdcall;
function Extract(indices: PCardArray; numItems: Cardinal;
testMode: Integer; extractCallback: IArchiveExtractCallback): HRESULT; stdcall;
// indices must be sorted
// numItems = 0xFFFFFFFF means all files
// testMode != 0 means "test files operation"
function GetArchiveProperty(propID: PROPID; var value: OleVariant): HRESULT; stdcall;
function GetNumberOfProperties(numProperties: PCardinal): HRESULT; stdcall;
function GetPropertyInfo(index: Cardinal;
name: PBSTR; propID: PPropID; varType: PVarType): HRESULT; stdcall;
function GetNumberOfArchiveProperties(var numProperties: Cardinal): HRESULT; stdcall;
function GetArchivePropertyInfo(index: Cardinal;
name: PBSTR; propID: PPropID; varType: PVARTYPE): HRESULT; stdcall;
end;
IArchiveUpdateCallback = interface(IProgress)
['{23170F69-40C1-278A-0000-000600800000}']
function GetUpdateItemInfo(index: Cardinal;
newData: PInteger; // 1 - new data, 0 - old data
newProperties: PInteger; // 1 - new properties, 0 - old properties
indexInArchive: PCardinal // -1 if there is no in archive, or if doesn't matter
): HRESULT; stdcall;
function GetProperty(index: Cardinal; propID: PROPID; var value: OleVariant): HRESULT; stdcall;
function GetStream(index: Cardinal; var inStream: ISequentialInStream): HRESULT; stdcall;
function SetOperationResult(operationResult: Integer): HRESULT; stdcall;
end;
IArchiveUpdateCallback2 = interface(IArchiveUpdateCallback)
['{23170F69-40C1-278A-0000-000600820000}']
function GetVolumeSize(index: Cardinal; size: PInt64): HRESULT; stdcall;
function GetVolumeStream(index: Cardinal; var volumeStream: ISequentialOutStream): HRESULT; stdcall;
end;
IOutArchive = interface
['{23170F69-40C1-278A-0000-000600A00000}']
function UpdateItems(outStream: ISequentialOutStream; numItems: Cardinal;
updateCallback: IArchiveUpdateCallback): HRESULT; stdcall;
function GetFileTimeType(type_: PCardinal): HRESULT; stdcall;
end;
ISetProperties = interface
['{23170F69-40C1-278A-0000-000600030000}']
function SetProperties(names: PPWideChar; values: PPROPVARIANT; numProperties: Integer): HRESULT; stdcall;
end;
//******************************************************************************
// ICoder.h
// "23170F69-40C1-278A-0000-000400xx0000"
//******************************************************************************
ICompressProgressInfo = interface
['{23170F69-40C1-278A-0000-000400040000}']
function SetRatioInfo(inSize, outSize: PInt64): HRESULT; stdcall;
end;
ICompressCoder = interface
['{23170F69-40C1-278A-0000-000400050000}']
function Code(inStream, outStream: ISequentialInStream;
inSize, outSize: PInt64;
progress: ICompressProgressInfo): HRESULT; stdcall;
end;
ICompressCoder2 = interface
['{23170F69-40C1-278A-0000-000400180000}']
function Code(var inStreams: ISequentialInStream;
var inSizes: PInt64;
numInStreams: Cardinal;
var outStreams: ISequentialOutStream;
var outSizes: PInt64;
numOutStreams: Cardinal;
progress: ICompressProgressInfo): HRESULT; stdcall;
end;
const
//NCoderPropID::
kDictionarySize = $400;
kUsedMemorySize = kDictionarySize + 1;
kOrder = kUsedMemorySize + 1;
kPosStateBits = $440;
kLitContextBits = kPosStateBits + 1;
kLitPosBits = kLitContextBits + 1;
kNumFastBytes = $450;
kMatchFinder = kNumFastBytes + 1;
kMatchFinderCycles = kMatchFinder + 1;
kNumPasses = $460;
kAlgorithm = $470;
kMultiThread = $480;
kNumThreads = kMultiThread + 1;
kEndMarker = $490;
type
ICompressSetCoderProperties = interface
['{23170F69-40C1-278A-0000-000400200000}']
function SetCoderProperties(propIDs: PPropID;
properties: PROPVARIANT; numProperties: Cardinal): HRESULT; stdcall;
end;
(*
CODER_INTERFACE(ICompressSetCoderProperties, 0x21)
{
STDMETHOD(SetDecoderProperties)(ISequentialInStream *inStream) PURE;
};
*)
ICompressSetDecoderProperties2 = interface
['{23170F69-40C1-278A-0000-000400220000}']
function SetDecoderProperties2(data: PByte; size: Cardinal): HRESULT; stdcall;
end;
ICompressWriteCoderProperties = interface
['{23170F69-40C1-278A-0000-000400230000}']
function WriteCoderProperties(outStreams: ISequentialOutStream): HRESULT; stdcall;
end;
ICompressGetInStreamProcessedSize = interface
['{23170F69-40C1-278A-0000-000400240000}']
function GetInStreamProcessedSize(value: PInt64): HRESULT; stdcall;
end;
ICompressSetCoderMt = interface
['{23170F69-40C1-278A-0000-000400250000}']
function SetNumberOfThreads(numThreads: Cardinal): HRESULT; stdcall;
end;
ICompressGetSubStreamSize = interface
['{23170F69-40C1-278A-0000-000400300000}']
function GetSubStreamSize(subStream: Int64; value: PInt64): HRESULT; stdcall;
end;
ICompressSetInStream = interface
['{23170F69-40C1-278A-0000-000400310000}']
function SetInStream(inStream: ISequentialInStream): HRESULT; stdcall;
function ReleaseInStream: HRESULT; stdcall;
end;
ICompressSetOutStream = interface
['{23170F69-40C1-278A-0000-000400320000}']
function SetOutStream(outStream: ISequentialOutStream): HRESULT; stdcall;
function ReleaseOutStream: HRESULT; stdcall;
end;
ICompressSetInStreamSize = interface
['{23170F69-40C1-278A-0000-000400330000}']
function SetInStreamSize(inSize: PInt64): HRESULT; stdcall;
end;
ICompressSetOutStreamSize = interface
['{23170F69-40C1-278A-0000-000400340000}']
function SetOutStreamSize(outSize: PInt64): HRESULT; stdcall;
end;
ICompressFilter = interface
['{23170F69-40C1-278A-0000-000400400000}']
function Init: HRESULT; stdcall;
function Filter(data: PByte; size: Cardinal): Cardinal; stdcall;
// Filter return outSize (Cardinal)
// if (outSize <= size): Filter have converted outSize bytes
// if (outSize > size): Filter have not converted anything.
// and it needs at least outSize bytes to convert one block
// (it's for crypto block algorithms).
end;
ICryptoProperties = interface
['{23170F69-40C1-278A-0000-000400800000}']
function SetKey(Data: PByte; size: Cardinal): HRESULT; stdcall;
function SetInitVector(data: PByte; size: Cardinal): HRESULT; stdcall;
end;
ICryptoSetPassword = interface
['{23170F69-40C1-278A-0000-000400900000}']
function CryptoSetPassword(data: PByte; size: Cardinal): HRESULT; stdcall;
end;
ICryptoSetCRC = interface
['{23170F69-40C1-278A-0000-000400A00000}']
function CryptoSetCRC(crc: Cardinal): HRESULT; stdcall;
end;
//////////////////////
// It's for DLL file
//NMethodPropID::
NMethodPropID = (
kID = 0,
kName_,
kDecoder,
kEncoder,
kInStreams,
kOutStreams,
kDescription,
kDecoderIsAssigned,
kEncoderIsAssigned
);
//******************************************************************************
// CLASSES
//******************************************************************************
T7zPasswordCallback = function(sender: Pointer; var password: UnicodeString): HRESULT; stdcall;
T7zGetStreamCallBack = function(sender: Pointer; index: Cardinal;
var outStream: ISequentialOutStream): HRESULT; stdcall;
T7zProgressCallback = function(sender: Pointer; total: boolean; value: int64): HRESULT; stdcall;
I7zInArchive = interface
['{022CF785-3ECE-46EF-9755-291FA84CC6C9}']
procedure OpenFile(const filename: string); stdcall;
procedure OpenStream(stream: IInStream); stdcall;
procedure Close; stdcall;
function GetNumberOfItems: Cardinal; stdcall;
function GetItemPath(const index: integer): UnicodeString; stdcall;
function GetItemName(const index: integer): UnicodeString; stdcall;
function GetItemSize(const index: integer): Cardinal; stdcall;
function GetItemIsFolder(const index: integer): boolean; stdcall;
function GetInArchive: IInArchive;
procedure ExtractItem(const item: Cardinal; Stream: TStream; test: longbool); stdcall;
procedure ExtractItems(items: PCardArray; count: cardinal; test: longbool;
sender: pointer; callback: T7zGetStreamCallBack); stdcall;
procedure ExtractAll(test: longbool; sender: pointer; callback: T7zGetStreamCallBack); stdcall;
procedure ExtractTo(const path: string); stdcall;
procedure SetPasswordCallback(sender: Pointer; callback: T7zPasswordCallback); stdcall;
procedure SetPassword(const password: UnicodeString); stdcall;
procedure SetProgressCallback(sender: Pointer; callback: T7zProgressCallback); stdcall;
procedure SetClassId(const classid: TGUID);
function GetClassId: TGUID;
property ClassId: TGUID read GetClassId write SetClassId;
property NumberOfItems: Cardinal read GetNumberOfItems;
property ItemPath[const index: integer]: UnicodeString read GetItemPath;
property ItemName[const index: integer]: UnicodeString read GetItemName;
property ItemSize[const index: integer]: Cardinal read GetItemSize;
property ItemIsFolder[const index: integer]: boolean read GetItemIsFolder;
property InArchive: IInArchive read GetInArchive;
end;
I7zOutArchive = interface
['{BAA9D5DC-9FF4-4382-9BFD-EC9065BD0125}']
procedure AddStream(Stream: TStream; Ownership: TStreamOwnership; Attributes: Cardinal;
CreationTime, LastWriteTime: TFileTime; const Path: UnicodeString;
IsFolder, IsAnti: boolean); stdcall;
procedure AddFile(const Filename: TFileName; const Path: UnicodeString); stdcall;
procedure AddFiles(const Dir, Path, Willcards: string; recurse: boolean); stdcall;
procedure SaveToFile(const FileName: TFileName); stdcall;
procedure SaveToStream(stream: TStream); stdcall;
procedure SetProgressCallback(sender: Pointer; callback: T7zProgressCallback); stdcall;
procedure CrearBatch; stdcall;
procedure SetPassword(const password: UnicodeString); stdcall;
procedure SetPropertie(name: UnicodeString; value: OleVariant); stdcall;
procedure SetClassId(const classid: TGUID);
function GetClassId: TGUID;
property ClassId: TGUID read GetClassId write SetClassId;
end;
I7zCodec = interface
['{AB48F772-F6B1-411E-907F-1567DB0E93B3}']
end;
T7zStream = class(TInterfacedObject, IInStream, IStreamGetSize,
ISequentialOutStream, ISequentialInStream, IOutStream, IOutStreamFlush)
private
FStream: TStream;
FOwnership: TStreamOwnership;
protected
function Read(data: Pointer; size: Cardinal; processedSize: PCardinal): HRESULT; stdcall;
function Seek(offset: Int64; seekOrigin: Cardinal; newPosition: Pint64): HRESULT; stdcall;
function GetSize(size: PInt64): HRESULT; stdcall;
function SetSize(newSize: Int64): HRESULT; stdcall;
function Write(data: Pointer; size: Cardinal; processedSize: PCardinal): HRESULT; stdcall;
function Flush: HRESULT; stdcall;
public
constructor Create(Stream: TStream; Ownership: TStreamOwnership = soReference);
destructor Destroy; override;
end;
// I7zOutArchive property setters
type
TZipCompressionMethod = (mzCopy, mzDeflate, mzDeflate64, mzBZip2);
T7zCompressionMethod = (m7Copy, m7LZMA, m7BZip2, m7PPMd, m7Deflate, m7Deflate64);
// ZIP 7z GZIP BZ2
procedure SetCompressionLevel(Arch: I7zOutArchive; level: Cardinal); // X X X X
procedure SetMultiThreading(Arch: I7zOutArchive; ThreadCount: Cardinal); // X X X
procedure SetCompressionMethod(Arch: I7zOutArchive; method: TZipCompressionMethod); // X
procedure SetDictionnarySize(Arch: I7zOutArchive; size: Cardinal); // < 32 // X X
procedure SetDeflateNumPasses(Arch: I7zOutArchive; pass: Cardinal); // X X X
procedure SetNumFastBytes(Arch: I7zOutArchive; fb: Cardinal); // X X
procedure SetNumMatchFinderCycles(Arch: I7zOutArchive; mc: Cardinal); // X X
procedure SevenZipSetCompressionMethod(Arch: I7zOutArchive; method: T7zCompressionMethod); // X
procedure SevenZipSetBindInfo(Arch: I7zOutArchive; const bind: UnicodeString); // X
procedure SevenZipSetSolidSettings(Arch: I7zOutArchive; solid: boolean); // X
procedure SevenZipRemoveSfxBlock(Arch: I7zOutArchive; remove: boolean); // X
procedure SevenZipAutoFilter(Arch: I7zOutArchive; auto: boolean); // X
procedure SevenZipCompressHeaders(Arch: I7zOutArchive; compress: boolean); // X
procedure SevenZipCompressHeadersFull(Arch: I7zOutArchive; compress: boolean); // X
procedure SevenZipEncryptHeaders(Arch: I7zOutArchive; Encrypt: boolean); // X
procedure SevenZipVolumeMode(Arch: I7zOutArchive; Mode: boolean); // X
// filetime util functions
function DateTimeToFileTime(dt: TDateTime): TFileTime;
function FileTimeToDateTime(ft: TFileTime): TDateTime;
function CurrentFileTime: TFileTime;
// constructors
function CreateInArchive(const classid: TGUID): I7zInArchive;
function CreateOutArchive(const classid: TGUID): I7zOutArchive;
const
CLSID_CFormatZip : TGUID = '{23170F69-40C1-278A-1000-000110010000}'; // zip jar xpi
CLSID_CFormatBZ2 : TGUID = '{23170F69-40C1-278A-1000-000110020000}'; // bz2 bzip2 tbz2 tbz
CLSID_CFormatRar : TGUID = '{23170F69-40C1-278A-1000-000110030000}'; // rar r00
CLSID_CFormatArj : TGUID = '{23170F69-40C1-278A-1000-000110040000}'; // arj
CLSID_CFormatZ : TGUID = '{23170F69-40C1-278A-1000-000110050000}'; // z taz
CLSID_CFormatLzh : TGUID = '{23170F69-40C1-278A-1000-000110060000}'; // lzh lha
CLSID_CFormat7z : TGUID = '{23170F69-40C1-278A-1000-000110070000}'; // 7z
CLSID_CFormatCab : TGUID = '{23170F69-40C1-278A-1000-000110080000}'; // cab
CLSID_CFormatNsis : TGUID = '{23170F69-40C1-278A-1000-000110090000}';
CLSID_CFormatLzma : TGUID = '{23170F69-40C1-278A-1000-0001100A0000}'; // lzma lzma86
CLSID_CFormatPe : TGUID = '{23170F69-40C1-278A-1000-000110DD0000}';
CLSID_CFormatElf : TGUID = '{23170F69-40C1-278A-1000-000110DE0000}';
CLSID_CFormatMacho : TGUID = '{23170F69-40C1-278A-1000-000110DF0000}';
CLSID_CFormatUdf : TGUID = '{23170F69-40C1-278A-1000-000110E00000}'; // iso
CLSID_CFormatXar : TGUID = '{23170F69-40C1-278A-1000-000110E10000}'; // xar
CLSID_CFormatMub : TGUID = '{23170F69-40C1-278A-1000-000110E20000}';
CLSID_CFormatHfs : TGUID = '{23170F69-40C1-278A-1000-000110E30000}';
CLSID_CFormatDmg : TGUID = '{23170F69-40C1-278A-1000-000110E40000}'; // dmg
CLSID_CFormatCompound : TGUID = '{23170F69-40C1-278A-1000-000110E50000}'; // msi doc xls ppt
CLSID_CFormatWim : TGUID = '{23170F69-40C1-278A-1000-000110E60000}'; // wim swm
CLSID_CFormatIso : TGUID = '{23170F69-40C1-278A-1000-000110E70000}'; // iso
CLSID_CFormatBkf : TGUID = '{23170F69-40C1-278A-1000-000110E80000}';
CLSID_CFormatChm : TGUID = '{23170F69-40C1-278A-1000-000110E90000}'; // chm chi chq chw hxs hxi hxr hxq hxw lit
CLSID_CFormatSplit : TGUID = '{23170F69-40C1-278A-1000-000110EA0000}'; // 001
CLSID_CFormatRpm : TGUID = '{23170F69-40C1-278A-1000-000110EB0000}'; // rpm
CLSID_CFormatDeb : TGUID = '{23170F69-40C1-278A-1000-000110EC0000}'; // deb
CLSID_CFormatCpio : TGUID = '{23170F69-40C1-278A-1000-000110ED0000}'; // cpio
CLSID_CFormatTar : TGUID = '{23170F69-40C1-278A-1000-000110EE0000}'; // tar
CLSID_CFormatGZip : TGUID = '{23170F69-40C1-278A-1000-000110EF0000}'; // gz gzip tgz tpz
implementation
const
MAXCHECK : int64 = (1 shl 20);
ZipCompressionMethod: array[TZipCompressionMethod] of UnicodeString = ('COPY', 'DEFLATE', 'DEFLATE64', 'BZIP2');
SevCompressionMethod: array[T7zCompressionMethod] of UnicodeString = ('COPY', 'LZMA', 'BZIP2', 'PPMD', 'DEFLATE', 'DEFLATE64');
function DateTimeToFileTime(dt: TDateTime): TFileTime;
var
st: TSystemTime;
begin
DateTimeToSystemTime(dt, st);
if not (SystemTimeToFileTime(st, Result) and LocalFileTimeToFileTime(Result, Result))
then RaiseLastOSError;
end;
function FileTimeToDateTime(ft: TFileTime): TDateTime;
var
st: TSystemTime;
begin
if not (FileTimeToLocalFileTime(ft, ft) and FileTimeToSystemTime(ft, st)) then
RaiseLastOSError;
Result := SystemTimeToDateTime(st);
end;
function CurrentFileTime: TFileTime;
begin
GetSystemTimeAsFileTime(Result);
end;
procedure RINOK(const hr: HRESULT);
begin
if hr <> S_OK then
raise Exception.Create(SysErrorMessage(hr));
end;
procedure SetCardinalProperty(arch: I7zOutArchive; const name: UnicodeString; card: Cardinal);
var
value: OleVariant;
begin
TPropVariant(value).vt := VT_UI4;
TPropVariant(value).ulVal := card;
arch.SetPropertie(name, value);
end;
procedure SetBooleanProperty(arch: I7zOutArchive; const name: UnicodeString; bool: boolean);
begin
case bool of
true: arch.SetPropertie(name, 'ON');
false: arch.SetPropertie(name, 'OFF');
end;
end;
procedure SetCompressionLevel(Arch: I7zOutArchive; level: Cardinal);
begin
SetCardinalProperty(arch, 'X', level);
end;
procedure SetMultiThreading(Arch: I7zOutArchive; ThreadCount: Cardinal);
begin
SetCardinalProperty(arch, 'MT', ThreadCount);
end;
procedure SetCompressionMethod(Arch: I7zOutArchive; method: TZipCompressionMethod);
begin
Arch.SetPropertie('M', ZipCompressionMethod[method]);
end;
procedure SetDictionnarySize(Arch: I7zOutArchive; size: Cardinal);
begin
SetCardinalProperty(arch, 'D', size);
end;
procedure SetDeflateNumPasses(Arch: I7zOutArchive; pass: Cardinal);
begin
SetCardinalProperty(arch, 'PASS', pass);
end;
procedure SetNumFastBytes(Arch: I7zOutArchive; fb: Cardinal);
begin
SetCardinalProperty(arch, 'FB', fb);
end;
procedure SetNumMatchFinderCycles(Arch: I7zOutArchive; mc: Cardinal);
begin
SetCardinalProperty(arch, 'MC', mc);
end;
procedure SevenZipSetCompressionMethod(Arch: I7zOutArchive; method: T7zCompressionMethod);
begin
Arch.SetPropertie('0', SevCompressionMethod[method]);
end;
procedure SevenZipSetBindInfo(Arch: I7zOutArchive; const bind: UnicodeString);
begin
arch.SetPropertie('B', bind);
end;
procedure SevenZipSetSolidSettings(Arch: I7zOutArchive; solid: boolean);
begin
SetBooleanProperty(Arch, 'S', solid);
end;
procedure SevenZipRemoveSfxBlock(Arch: I7zOutArchive; remove: boolean);
begin
SetBooleanProperty(arch, 'RSFX', remove);
end;
procedure SevenZipAutoFilter(Arch: I7zOutArchive; auto: boolean);
begin
SetBooleanProperty(arch, 'F', auto);
end;
procedure SevenZipCompressHeaders(Arch: I7zOutArchive; compress: boolean);
begin
SetBooleanProperty(arch, 'HC', compress);
end;
procedure SevenZipCompressHeadersFull(Arch: I7zOutArchive; compress: boolean);
begin
SetBooleanProperty(arch, 'HCF', compress);
end;
procedure SevenZipEncryptHeaders(Arch: I7zOutArchive; Encrypt: boolean);
begin
SetBooleanProperty(arch, 'HE', Encrypt);
end;
procedure SevenZipVolumeMode(Arch: I7zOutArchive; Mode: boolean);
begin
SetBooleanProperty(arch, 'V', Mode);
end;
type
T7zPlugin = class(TInterfacedObject)
private
FHandle: THandle;
FCreateObject: function(const clsid, iid :TGUID; var outObject): HRESULT; stdcall;
public
constructor Create(const lib: string); virtual;
destructor Destroy; override;
procedure CreateObject(const clsid, iid :TGUID; var obj);
end;
T7zCodec = class(T7zPlugin, I7zCodec, ICompressProgressInfo)
private
FGetMethodProperty: function(index: Cardinal; propID: NMethodPropID; var value: OleVariant): HRESULT; stdcall;
FGetNumberOfMethods: function(numMethods: PCardinal): HRESULT; stdcall;
function GetNumberOfMethods: Cardinal;
function GetMethodProperty(index: Cardinal; propID: NMethodPropID): OleVariant;
function GetName(const index: integer): string;
protected
function SetRatioInfo(inSize, outSize: PInt64): HRESULT; stdcall;
public
function GetDecoder(const index: integer): ICompressCoder;
function GetEncoder(const index: integer): ICompressCoder;
constructor Create(const lib: string); override;
property MethodProperty[index: Cardinal; propID: NMethodPropID]: OleVariant read GetMethodProperty;
property NumberOfMethods: Cardinal read GetNumberOfMethods;
property Name[const index: integer]: string read GetName;
end;
T7zArchive = class(T7zPlugin)
private
FGetHandlerProperty: function(propID: NArchive; var value: OleVariant): HRESULT; stdcall;
FClassId: TGUID;
procedure SetClassId(const classid: TGUID);
function GetClassId: TGUID;
public
function GetHandlerProperty(const propID: NArchive): OleVariant;
function GetLibStringProperty(const Index: NArchive): string;
function GetLibGUIDProperty(const Index: NArchive): TGUID;
constructor Create(const lib: string); override;
property HandlerProperty[const propID: NArchive]: OleVariant read GetHandlerProperty;
property Name: string index kName read GetLibStringProperty;
property ClassID: TGUID read GetClassId write SetClassId;
property Extension: string index kExtension read GetLibStringProperty;
end;
T7zInArchive = class(T7zArchive, I7zInArchive, IProgress, IArchiveOpenCallback,
IArchiveExtractCallback, ICryptoGetTextPassword, IArchiveOpenVolumeCallback,
IArchiveOpenSetSubArchiveName)
private
FInArchive: IInArchive;
FPasswordCallback: T7zPasswordCallback;
FPasswordSender: Pointer;
FProgressCallback: T7zProgressCallback;
FProgressSender: Pointer;
FStream: TStream;
FPasswordIsDefined: Boolean;
FPassword: UnicodeString;
FSubArchiveMode: Boolean;
FSubArchiveName: UnicodeString;
FExtractCallBack: T7zGetStreamCallBack;
FExtractSender: Pointer;
FExtractPath: string;
function GetInArchive: IInArchive;
function GetItemProp(const Item: Cardinal; prop: PROPID): OleVariant;
protected
// I7zInArchive
procedure OpenFile(const filename: string); stdcall;
procedure OpenStream(stream: IInStream); stdcall;
procedure Close; stdcall;
function GetNumberOfItems: Cardinal; stdcall;
function GetItemPath(const index: integer): UnicodeString; stdcall;
function GetItemName(const index: integer): UnicodeString; stdcall;
function GetItemSize(const index: integer): Cardinal; stdcall; stdcall;
function GetItemIsFolder(const index: integer): boolean; stdcall;
procedure ExtractItem(const item: Cardinal; Stream: TStream; test: longbool); stdcall;
procedure ExtractItems(items: PCardArray; count: cardinal; test: longbool; sender: pointer; callback: T7zGetStreamCallBack); stdcall;
procedure SetPasswordCallback(sender: Pointer; callback: T7zPasswordCallback); stdcall;
procedure SetProgressCallback(sender: Pointer; callback: T7zProgressCallback); stdcall;
procedure ExtractAll(test: longbool; sender: pointer; callback: T7zGetStreamCallBack); stdcall;
procedure ExtractTo(const path: string); stdcall;
procedure SetPassword(const password: UnicodeString); stdcall;
// IArchiveOpenCallback
function SetTotal(files, bytes: PInt64): HRESULT; overload; stdcall;
function SetCompleted(files, bytes: PInt64): HRESULT; overload; stdcall;
// IProgress
function SetTotal(total: Int64): HRESULT; overload; stdcall;
function SetCompleted(completeValue: PInt64): HRESULT; overload; stdcall;
// IArchiveExtractCallback
function GetStream(index: Cardinal; var outStream: ISequentialOutStream;
askExtractMode: NAskMode): HRESULT; overload; stdcall;
function PrepareOperation(askExtractMode: NAskMode): HRESULT; stdcall;
function SetOperationResult(resultEOperationResult: NExtOperationResult): HRESULT; overload; stdcall;
// ICryptoGetTextPassword
function CryptoGetTextPassword(var password: TBStr): HRESULT; stdcall;
// IArchiveOpenVolumeCallback
function GetProperty(propID: PROPID; var value: OleVariant): HRESULT; overload; stdcall;
function GetStream(const name: PWideChar; var inStream: IInStream): HRESULT; overload; stdcall;
// IArchiveOpenSetSubArchiveName
function SetSubArchiveName(name: PWideChar): HRESULT; stdcall;
public
constructor Create(const lib: string); override;
destructor Destroy; override;
property InArchive: IInArchive read GetInArchive;
end;
T7zOutArchive = class(T7zArchive, I7zOutArchive, IArchiveUpdateCallback, ICryptoGetTextPassword2)
private
FOutArchive: IOutArchive;
FBatchList: TObjectList;
FProgressCallback: T7zProgressCallback;
FProgressSender: Pointer;
FPassword: UnicodeString;
function GetOutArchive: IOutArchive;
protected
// I7zOutArchive
procedure AddStream(Stream: TStream; Ownership: TStreamOwnership;
Attributes: Cardinal; CreationTime, LastWriteTime: TFileTime;
const Path: UnicodeString; IsFolder, IsAnti: boolean); stdcall;
procedure AddFile(const Filename: TFileName; const Path: UnicodeString); stdcall;
procedure AddFiles(const Dir, Path, Willcards: string; recurse: boolean); stdcall;
procedure SaveToFile(const FileName: TFileName); stdcall;
procedure SaveToStream(stream: TStream); stdcall;
procedure SetProgressCallback(sender: Pointer; callback: T7zProgressCallback); stdcall;
procedure CrearBatch; stdcall;
procedure SetPassword(const password: UnicodeString); stdcall;
procedure SetPropertie(name: UnicodeString; value: OleVariant); stdcall;
// IProgress
function SetTotal(total: Int64): HRESULT; stdcall;
function SetCompleted(completeValue: PInt64): HRESULT; stdcall;
// IArchiveUpdateCallback
function GetUpdateItemInfo(index: Cardinal;
newData: PInteger; // 1 - new data, 0 - old data
newProperties: PInteger; // 1 - new properties, 0 - old properties
indexInArchive: PCardinal // -1 if there is no in archive, or if doesn't matter
): HRESULT; stdcall;
function GetProperty(index: Cardinal; propID: PROPID; var value: OleVariant): HRESULT; stdcall;
function GetStream(index: Cardinal; var inStream: ISequentialInStream): HRESULT; stdcall;
function SetOperationResult(operationResult: Integer): HRESULT; stdcall;
// ICryptoGetTextPassword2
function CryptoGetTextPassword2(passwordIsDefined: PInteger; var password: TBStr): HRESULT; stdcall;
public
constructor Create(const lib: string); override;
destructor Destroy; override;
property OutArchive: IOutArchive read GetOutArchive;
end;
function CreateInArchive(const classid: TGUID): I7zInArchive;
begin
Result := T7zInArchive.Create('7z.dll');
Result.ClassId := classid;
end;
function CreateOutArchive(const classid: TGUID): I7zOutArchive;
begin
Result := T7zOutArchive.Create('7z.dll');
Result.ClassId := classid;
end;
{ T7zPlugin }
constructor T7zPlugin.Create(const lib: string);
begin
FHandle := LoadLibrary(PChar(lib));
if FHandle = 0 then
raise exception.CreateFmt('Error loading library %s', [lib]);
FCreateObject := GetProcAddress(FHandle, 'CreateObject');
if not (Assigned(FCreateObject)) then
begin
FreeLibrary(FHandle);
raise Exception.CreateFmt('%s is not a 7z library', [lib]);
end;
end;
destructor T7zPlugin.Destroy;
begin
FreeLibrary(FHandle);
inherited;
end;
procedure T7zPlugin.CreateObject(const clsid, iid: TGUID; var obj);
var
hr: HRESULT;
begin
hr := FCreateObject(clsid, iid, obj);
if failed(hr) then
raise Exception.Create(SysErrorMessage(hr));
end;
{ T7zCodec }
constructor T7zCodec.Create(const lib: string);
begin
inherited;
FGetMethodProperty := GetProcAddress(FHandle, 'GetMethodProperty');
FGetNumberOfMethods := GetProcAddress(FHandle, 'GetNumberOfMethods');
if not (Assigned(FGetMethodProperty) and Assigned(FGetNumberOfMethods)) then
begin
FreeLibrary(FHandle);
raise Exception.CreateFmt('%s is not a codec library', [lib]);
end;
end;
function T7zCodec.GetDecoder(const index: integer): ICompressCoder;
var
v: OleVariant;
begin
v := MethodProperty[index, kDecoder];
CreateObject(TPropVariant(v).puuid^, ICompressCoder, Result);
end;
function T7zCodec.GetEncoder(const index: integer): ICompressCoder;
var
v: OleVariant;
begin
v := MethodProperty[index, kEncoder];
CreateObject(TPropVariant(v).puuid^, ICompressCoder, Result);
end;
function T7zCodec.GetMethodProperty(index: Cardinal;
propID: NMethodPropID): OleVariant;
var
hr: HRESULT;
begin
hr := FGetMethodProperty(index, propID, Result);
if Failed(hr) then
raise Exception.Create(SysErrorMessage(hr));
end;
function T7zCodec.GetName(const index: integer): string;
begin
Result := MethodProperty[index, kName_];
end;
function T7zCodec.GetNumberOfMethods: Cardinal;
var
hr: HRESULT;
begin
hr := FGetNumberOfMethods(@Result);
if Failed(hr) then
raise Exception.Create(SysErrorMessage(hr));
end;
function T7zCodec.SetRatioInfo(inSize, outSize: PInt64): HRESULT;
begin
Result := S_OK;
end;
{ T7zInArchive }
procedure T7zInArchive.Close; stdcall;
begin
FPasswordIsDefined := false;
FSubArchiveMode := false;
FInArchive.Close;
FInArchive := nil;
end;
constructor T7zInArchive.Create(const lib: string);
begin
inherited;
FPasswordCallback := nil;
FPasswordSender := nil;
FPasswordIsDefined := false;
FSubArchiveMode := false;
FExtractCallBack := nil;
FExtractSender := nil;
end;
destructor T7zInArchive.Destroy;
begin
FInArchive := nil;
inherited;
end;
function T7zInArchive.GetInArchive: IInArchive;
begin
if FInArchive = nil then
CreateObject(ClassID, IInArchive, FInArchive);
Result := FInArchive;
end;
function T7zInArchive.GetItemPath(const index: integer): UnicodeString; stdcall;
begin
Result := UnicodeString(GetItemProp(index, kpidPath));
end;
function T7zInArchive.GetNumberOfItems: Cardinal; stdcall;
begin
RINOK(FInArchive.GetNumberOfItems(Result));
end;
procedure T7zInArchive.OpenFile(const filename: string); stdcall;
var
strm: IInStream;
begin
strm := T7zStream.Create(TFileStream.Create(filename, fmOpenRead or fmShareDenyNone), soOwned);
try
RINOK(
InArchive.Open(
strm,
@MAXCHECK, self as IArchiveOpenCallBack
)
);
finally
strm := nil;
end;
end;
procedure T7zInArchive.OpenStream(stream: IInStream); stdcall;
begin
RINOK(InArchive.Open(stream, @MAXCHECK, self as IArchiveOpenCallBack));
end;
function T7zInArchive.GetItemIsFolder(const index: integer): boolean; stdcall;
begin
Result := Boolean(GetItemProp(index, kpidIsFolder));
end;
function T7zInArchive.GetItemProp(const Item: Cardinal;
prop: PROPID): OleVariant;
begin
FInArchive.GetProperty(Item, prop, Result);
end;
procedure T7zInArchive.ExtractItem(const item: Cardinal; Stream: TStream; test: longbool); stdcall;
begin
FStream := Stream;
try
if test then
RINOK(FInArchive.Extract(@item, 1, 1, self as IArchiveExtractCallback)) else
RINOK(FInArchive.Extract(@item, 1, 0, self as IArchiveExtractCallback));
finally
FStream := nil;
end;
end;
function T7zInArchive.GetStream(index: Cardinal;
var outStream: ISequentialOutStream; askExtractMode: NAskMode): HRESULT;
var
path: string;
begin
if askExtractMode = kExtract then
if FStream <> nil then
outStream := T7zStream.Create(FStream, soReference) as ISequentialOutStream else
if assigned(FExtractCallback) then
begin
Result := FExtractCallBack(FExtractSender, index, outStream);
Exit;
end else
if FExtractPath <> '' then
begin
if not GetItemIsFolder(index) then
begin
path := FExtractPath + GetItemPath(index);
ForceDirectories(ExtractFilePath(path));
outStream := T7zStream.Create(TFileStream.Create(path, fmCreate), soOwned);
end;
end;
Result := S_OK;
end;
function T7zInArchive.PrepareOperation(askExtractMode: NAskMode): HRESULT;
begin
Result := S_OK;
end;
function T7zInArchive.SetCompleted(completeValue: PInt64): HRESULT;
begin
if Assigned(FProgressCallback) and (completeValue <> nil) then
Result := FProgressCallback(FProgressSender, false, completeValue^) else
Result := S_OK;
end;
function T7zInArchive.SetCompleted(files, bytes: PInt64): HRESULT;
begin
Result := S_OK;
end;
function T7zInArchive.SetOperationResult(
resultEOperationResult: NExtOperationResult): HRESULT;
begin
Result := S_OK;
end;
function T7zInArchive.SetTotal(total: Int64): HRESULT;
begin
if Assigned(FProgressCallback) then
Result := FProgressCallback(FProgressSender, true, total) else
Result := S_OK;
end;
function T7zInArchive.SetTotal(files, bytes: PInt64): HRESULT;
begin
Result := S_OK;
end;
function T7zInArchive.CryptoGetTextPassword(var password: TBStr): HRESULT;
var
wpass: UnicodeString;
begin
if FPasswordIsDefined then
begin
password := SysAllocString(PWideChar(FPassword));
Result := S_OK;
end else
if Assigned(FPasswordCallback) then
begin
Result := FPasswordCallBack(FPasswordSender, wpass);
if Result = S_OK then
begin
password := SysAllocString(PWideChar(wpass));
FPasswordIsDefined := True;
FPassword := wpass;
end;
end else
Result := S_FALSE;
end;
function T7zInArchive.GetProperty(propID: PROPID;
var value: OleVariant): HRESULT;
begin
Result := S_OK;
end;
function T7zInArchive.GetStream(const name: PWideChar;
var inStream: IInStream): HRESULT;
begin
Result := S_OK;
end;
procedure T7zInArchive.SetPasswordCallback(sender: Pointer;
callback: T7zPasswordCallback); stdcall;
begin
FPasswordSender := sender;
FPasswordCallback := callback;
end;
function T7zInArchive.SetSubArchiveName(name: PWideChar): HRESULT;
begin
FSubArchiveMode := true;
FSubArchiveName := name;
Result := S_OK;
end;
function T7zInArchive.GetItemName(const index: integer): UnicodeString; stdcall;
begin
Result := UnicodeString(GetItemProp(index, kpidName));
end;
function T7zInArchive.GetItemSize(const index: integer): Cardinal; stdcall;
begin
Result := Cardinal(GetItemProp(index, kpidSize));
end;
procedure T7zInArchive.ExtractItems(items: PCardArray; count: cardinal; test: longbool;
sender: pointer; callback: T7zGetStreamCallBack); stdcall;
begin
FExtractCallBack := callback;
FExtractSender := sender;
try
if test then
RINOK(FInArchive.Extract(items, count, 1, self as IArchiveExtractCallback)) else
RINOK(FInArchive.Extract(items, count, 0, self as IArchiveExtractCallback));
finally
FExtractCallBack := nil;
FExtractSender := nil;
end;
end;
procedure T7zInArchive.SetProgressCallback(sender: Pointer;
callback: T7zProgressCallback); stdcall;
begin
FProgressSender := sender;
FProgressCallback := callback;
end;
procedure T7zInArchive.ExtractAll(test: longbool; sender: pointer;
callback: T7zGetStreamCallBack);
begin
FExtractCallBack := callback;
FExtractSender := sender;
try
if test then
RINOK(FInArchive.Extract(nil, $FFFFFFFF, 1, self as IArchiveExtractCallback)) else
RINOK(FInArchive.Extract(nil, $FFFFFFFF, 0, self as IArchiveExtractCallback));
finally
FExtractCallBack := nil;
FExtractSender := nil;
end;
end;
procedure T7zInArchive.ExtractTo(const path: string);
begin
FExtractPath := IncludeTrailingPathDelimiter(path);
try
RINOK(FInArchive.Extract(nil, $FFFFFFFF, 0, self as IArchiveExtractCallback));
finally
FExtractPath := '';
end;
end;
procedure T7zInArchive.SetPassword(const password: UnicodeString);
begin
FPassword := password;
FPasswordIsDefined := FPassword <> '';
end;
{ T7zArchive }
constructor T7zArchive.Create(const lib: string);
begin
inherited;
FGetHandlerProperty := GetProcAddress(FHandle, 'GetHandlerProperty');
if not Assigned(FGetHandlerProperty) then
begin
FreeLibrary(FHandle);
raise Exception.CreateFmt('%s is not a Format library', [lib]);
end;
FClassId := GUID_NULL;
end;
function T7zArchive.GetClassId: TGUID;
begin
Result := FClassId;
end;
function T7zArchive.GetHandlerProperty(const propID: NArchive): OleVariant;
var
hr: HRESULT;
begin
hr := FGetHandlerProperty(propID, Result);
if Failed(hr) then
raise Exception.Create(SysErrorMessage(hr));
end;
function T7zArchive.GetLibGUIDProperty(const Index: NArchive): TGUID;
var
v: OleVariant;
begin
v := HandlerProperty[index];
Result := TPropVariant(v).puuid^;
end;
function T7zArchive.GetLibStringProperty(const Index: NArchive): string;
begin
Result := HandlerProperty[Index];
end;
procedure T7zArchive.SetClassId(const classid: TGUID);
begin
FClassId := classid;
end;
{ T7zStream }
constructor T7zStream.Create(Stream: TStream; Ownership: TStreamOwnership);
begin
inherited Create;
FStream := Stream;
FOwnership := Ownership;
end;
destructor T7zStream.destroy;
begin
if FOwnership = soOwned then
begin
FStream.Free;
FStream := nil;
end;
inherited;
end;
function T7zStream.Flush: HRESULT;
begin
Result := S_OK;
end;
function T7zStream.GetSize(size: PInt64): HRESULT;
begin
if size <> nil then
size^ := FStream.Size;
Result := S_OK;
end;
function T7zStream.Read(data: Pointer; size: Cardinal;
processedSize: PCardinal): HRESULT;
var
len: integer;
begin
len := FStream.Read(data^, size);
if processedSize <> nil then
processedSize^ := len;
Result := S_OK;
end;
function T7zStream.Seek(offset: Int64; seekOrigin: Cardinal;
newPosition: PInt64): HRESULT;
begin
FStream.Seek(offset, TSeekOrigin(seekOrigin));
if newPosition <> nil then
newPosition^ := FStream.Position;
Result := S_OK;
end;
function T7zStream.SetSize(newSize: Int64): HRESULT;
begin
FStream.Size := newSize;
Result := S_OK;
end;
function T7zStream.Write(data: Pointer; size: Cardinal;
processedSize: PCardinal): HRESULT;
var
len: integer;
begin
len := FStream.Write(data^, size);
if processedSize <> nil then
processedSize^ := len;
Result := S_OK;
end;
type
TSourceMode = (smStream, smFile);
T7zBatchItem = class
SourceMode: TSourceMode;
Stream: TStream;
Attributes: Cardinal;
CreationTime, LastWriteTime: TFileTime;
Path: UnicodeString;
IsFolder, IsAnti: boolean;
FileName: TFileName;
Ownership: TStreamOwnership;
Size: Cardinal;
destructor Destroy; override;
end;
destructor T7zBatchItem.Destroy;
begin
if (Ownership = soOwned) and (Stream <> nil) then
Stream.Free;
inherited;
end;
{ T7zOutArchive }
procedure T7zOutArchive.AddFile(const Filename: TFileName; const Path: UnicodeString);
var
item: T7zBatchItem;
Handle: THandle;
begin
if not FileExists(Filename) then exit;
item := T7zBatchItem.Create;
Item.SourceMode := smFile;
item.Stream := nil;
item.FileName := Filename;
item.Path := Path;
Handle := FileOpen(Filename, fmOpenRead or fmShareDenyNone);
GetFileTime(Handle, @item.CreationTime, nil, @item.LastWriteTime);
item.Size := GetFileSize(Handle, nil);
CloseHandle(Handle);
item.Attributes := GetFileAttributes(PChar(Filename));
item.IsFolder := false;
item.IsAnti := False;
item.Ownership := soOwned;
FBatchList.Add(item);
end;
procedure T7zOutArchive.AddFiles(const Dir, Path, Willcards: string; recurse: boolean);
var
lencut: integer;
willlist: TStringList;
zedir: string;
procedure Traverse(p: string);
var
f: TSearchRec;
i: integer;
item: T7zBatchItem;
begin
if recurse then
begin
if FindFirst(p + '*.*', faDirectory, f) = 0 then
repeat
if (f.Name[1] <> '.') then
Traverse(IncludeTrailingPathDelimiter(p + f.Name));
until FindNext(f) <> 0;
SysUtils.FindClose(f);
end;
for i := 0 to willlist.Count - 1 do
begin
if FindFirst(p + willlist<i>, faReadOnly or faHidden or faSysFile or faArchive, f) = 0 then
repeat
item := T7zBatchItem.Create;
Item.SourceMode := smFile;
item.Stream := nil;
item.FileName := p + f.Name;
item.Path := copy(item.FileName, lencut, length(item.FileName) - lencut + 1);
if path <> '' then
item.Path := IncludeTrailingPathDelimiter(path) + item.Path;
item.CreationTime := f.FindData.ftCreationTime;
item.LastWriteTime := f.FindData.ftLastWriteTime;
item.Attributes := f.FindData.dwFileAttributes;
item.Size := f.Size;
item.IsFolder := false;
item.IsAnti := False;
item.Ownership := soOwned;
FBatchList.Add(item);
until FindNext(f) <> 0;
SysUtils.FindClose(f);
end;
end;
begin
willlist := TStringList.Create;
try
willlist.Delimiter := ';';
willlist.DelimitedText := Willcards;
zedir := IncludeTrailingPathDelimiter(Dir);
lencut := Length(zedir) + 1;
Traverse(zedir);
finally
willlist.Free;
end;
end;
procedure T7zOutArchive.AddStream(Stream: TStream; Ownership: TStreamOwnership;
Attributes: Cardinal; CreationTime, LastWriteTime: TFileTime;
const Path: UnicodeString; IsFolder, IsAnti: boolean); stdcall;
var
item: T7zBatchItem;
begin
item := T7zBatchItem.Create;
Item.SourceMode := smStream;
item.Attributes := Attributes;
item.CreationTime := CreationTime;
item.LastWriteTime := LastWriteTime;
item.Path := Path;
item.IsFolder := IsFolder;
item.IsAnti := IsAnti;
item.Stream := Stream;
item.Size := Stream.Size;
item.Ownership := Ownership;
FBatchList.Add(item);
end;
procedure T7zOutArchive.CrearBatch;
begin
FBatchList.Clear;
end;
constructor T7zOutArchive.Create(const lib: string);
begin
inherited;
FBatchList := TObjectList.Create;
FProgressCallback := nil;
FProgressSender := nil;
end;
function T7zOutArchive.CryptoGetTextPassword2(passwordIsDefined: PInteger;
var password: TBStr): HRESULT;
begin
if FPassword <> '' then
begin
passwordIsDefined^ := 1;
password := SysAllocString(PWideChar(FPassword));
end else
passwordIsDefined^ := 0;
Result := S_OK;
end;
destructor T7zOutArchive.Destroy;
begin
FOutArchive := nil;
FBatchList.Free;
inherited;
end;
function T7zOutArchive.GetOutArchive: IOutArchive;
begin
if FOutArchive = nil then
CreateObject(ClassID, IOutArchive, FOutArchive);
Result := FOutArchive;
end;
function T7zOutArchive.GetProperty(index: Cardinal; propID: PROPID;
var value: OleVariant): HRESULT;
var
item: T7zBatchItem;
begin
item := T7zBatchItem(FBatchList[index]);
case propID of
kpidAttributes:
begin
TPropVariant(Value).vt := VT_UI4;
TPropVariant(Value).ulVal := item.Attributes;
end;
kpidLastWriteTime:
begin
TPropVariant(value).vt := VT_FILETIME;
TPropVariant(value).filetime := item.LastWriteTime;
end;
kpidPath:
begin
if item.Path <> '' then
value := item.Path;
end;
kpidIsFolder: Value := item.IsFolder;
kpidSize:
begin
TPropVariant(Value).vt := VT_UI8;
TPropVariant(Value).uhVal.QuadPart := item.Size;
end;
kpidCreationTime:
begin
TPropVariant(value).vt := VT_FILETIME;
TPropVariant(value).filetime := item.CreationTime;
end;
kpidIsAnti: value := item.IsAnti;
else
// beep(0,0);
end;
Result := S_OK;
end;
function T7zOutArchive.GetStream(index: Cardinal;
var inStream: ISequentialInStream): HRESULT;
var
item: T7zBatchItem;
begin
item := T7zBatchItem(FBatchList[index]);
case item.SourceMode of
smFile: inStream := T7zStream.Create(TFileStream.Create(item.FileName, fmOpenRead or fmShareDenyNone), soOwned);
smStream:
begin
item.Stream.Seek(0, soFromBeginning);
inStream := T7zStream.Create(item.Stream);
end;
end;
Result := S_OK;
end;
function T7zOutArchive.GetUpdateItemInfo(index: Cardinal; newData,
newProperties: PInteger; indexInArchive: PCardinal): HRESULT;
begin
newData^ := 1;
newProperties^ := 1;
indexInArchive^ := CArdinal(-1);
Result := S_OK;
end;
procedure T7zOutArchive.SaveToFile(const FileName: TFileName);
var
f: TFileStream;
begin
f := TFileStream.Create(FileName, fmCreate);
try
SaveToStream(f);
finally
f.free;
end;
end;
procedure T7zOutArchive.SaveToStream(stream: TStream);
var
strm: ISequentialOutStream;
begin
strm := T7zStream.Create(stream);
try
RINOK(OutArchive.UpdateItems(strm, FBatchList.Count, self as IArchiveUpdateCallback));
finally
strm := nil;
end;
end;
function T7zOutArchive.SetCompleted(completeValue: PInt64): HRESULT;
begin
if Assigned(FProgressCallback) and (completeValue <> nil) then
Result := FProgressCallback(FProgressSender, false, completeValue^) else
Result := S_OK;
end;
function T7zOutArchive.SetOperationResult(
operationResult: Integer): HRESULT;
begin
Result := S_OK;
end;
procedure T7zOutArchive.SetPassword(const password: UnicodeString);
begin
FPassword := password;
end;
procedure T7zOutArchive.SetProgressCallback(sender: Pointer;
callback: T7zProgressCallback);
begin
FProgressCallback := callback;
FProgressSender := sender;
end;
procedure T7zOutArchive.SetPropertie(name: UnicodeString;
value: OleVariant);
var
intf: ISetProperties;
p: PWideChar;
begin
intf := OutArchive as ISetProperties;
p := PWideChar(name);
RINOK(intf.SetProperties(@p, @TPropVariant(value), 1));
end;
function T7zOutArchive.SetTotal(total: Int64): HRESULT;
begin
if Assigned(FProgressCallback) then
Result := FProgressCallback(FProgressSender, true, total) else
Result := S_OK;
end;
end.

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