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WinFileInfo.pas
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WinFileInfo.pas
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{-------------------------------------------------------------------------------
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
-------------------------------------------------------------------------------}
{===============================================================================
WinFileInfo
Main aim of this library is to provide a simple way of obtaining file
information such as size, attributes, time of creation and, in case of
binaries on Windows OS, a version information.
A complete parsing of raw version information data is implemented, so
it is possible to obtain information even from badly constructed version
info resource.
Although the library was intended only for Windows OS, it can now be
compiled for other systems too. But in such case, it provides only a
limited file information set.
Version 1.1.3 (2024-04-28)
Last change 2024-10-04
©2015-2024 František Milt
Contacts:
František Milt: frantisek.milt@gmail.com
Support:
If you find this code useful, please consider supporting its author(s) by
making a small donation using the following link(s):
https://www.paypal.me/FMilt
Changelog:
For detailed changelog and history please refer to this git repository:
github.com/TheLazyTomcat/Lib.WinFileInfo
Dependencies:
* AuxExceptions - github.com/TheLazyTomcat/Lib.AuxExceptions
AuxTypes - github.com/TheLazyTomcat/Lib.AuxTypes
* StrRect - github.com/TheLazyTomcat/Lib.StrRect
Library AuxExceptions is required only when rebasing local exception classes
(see symbol WinFileInfo_UseAuxExceptions for details).
StrRect is required only when compiling for Windows OS.
Library StrRect might also be required as an indirect dependency.
Indirect dependencies:
SimpleCPUID - github.com/TheLazyTomcat/Lib.SimpleCPUID
UInt64Utils - github.com/TheLazyTomcat/Lib.UInt64Utils
===============================================================================}
unit WinFileInfo;
{
WinFileInfo_UseAuxExceptions
If you want library-specific exceptions to be based on more advanced classes
provided by AuxExceptions library instead of basic Exception class, and don't
want to or cannot change code in this unit, you can define global symbol
WinFileInfo_UseAuxExceptions to achieve this.
}
{$IF Defined(WinFileInfo_UseAuxExceptions)}
{$DEFINE UseAuxExceptions}
{$IFEND}
//------------------------------------------------------------------------------
{$IF Defined(WINDOWS) or Defined(MSWINDOWS)}
{$DEFINE Windows}
{$ELSEIF Defined(LINUX) and Defined(FPC)}
{
There is FPC-specific code used in non-Windows systems, therefore compilation
for these systems has to be allowed only on FPC.
}
{$DEFINE Linux}
{$ELSE}
{$MESSAGE FATAL 'Unsupported OS-compiler combination.'}
{$IFEND}
{$IFDEF FPC}
{$MODE ObjFPC}
{$DEFINE FPC_DisableWarns}
{$MACRO ON}
{$ENDIF}
{$H+}
interface
uses
SysUtils, Classes, {$IFDEF Windows}Windows,{$ELSE}UnixType,{$ENDIF}
AuxTypes{$IFDEF UseAuxExceptions}, AuxExceptions{$ENDIF};
{===============================================================================
Library-specific exceptions
===============================================================================}
type
EWFIException = class({$IFDEF UseAuxExceptions}EAEGeneralException{$ELSE}Exception{$ENDIF});
EWFIFileError = class(EWFIException);
EWFIProcessingError = class(EWFIException);
EWFISystemError = class(EWFIException);
EWFIIndexOutOfBounds = class(EWFIException); // used only in windows
{===============================================================================
--------------------------------------------------------------------------------
Utility functions
--------------------------------------------------------------------------------
===============================================================================}
{===============================================================================
Utility functions - declaration
===============================================================================}
{
Returns size of the given file in bytes.
If the file does not exist, it will raise an EWFIFileError exception.
}
Function GetFileSize(const FileName: String): UInt64;
//------------------------------------------------------------------------------
{
FileSizeToStr expects passed number to be a file size and converts it to its
string representation (as a decimal number if needed), including proper unit
(KiB, MiB, ...).
NOTE - version without FormatSettings parameter is not thread safe, use
FileSizeToStrThr in non-main thread(s) if you cannot provide filled
format settings (it uses default settings provided by OS or RLT).
}
Function FileSizeToStr(FileSize: UInt64; FormatSettings: TFormatSettings; SpaceUnit: Boolean = True): String; overload;
Function FileSizeToStr(FileSize: UInt64; SpaceUnit: Boolean = True): String; overload;
Function FileSizeToStrThr(FileSize: UInt64; SpaceUnit: Boolean = True): String;
//------------------------------------------------------------------------------
{
Returns true when both paths (A and B) points to the same file, false
otherwise.
If either of the two paths points to a file that does not exist, the function
will raise an EWFIFileError exception.
}
Function SameFile(const A,B: String): Boolean;
{===============================================================================
--------------------------------------------------------------------------------
TWinFileInfo
--------------------------------------------------------------------------------
===============================================================================}
type
TWFIFileHandle = {$IFDEF Windows}THandle{$ELSE}cint{$ENDIF};
{===============================================================================
TWinFileInfo - constants
===============================================================================}
{$IFDEF Windows}
const
// File attributes flags
INVALID_FILE_ATTRIBUTES = DWORD(-1);
FILE_ATTRIBUTE_ARCHIVE = $20;
FILE_ATTRIBUTE_COMPRESSED = $800;
FILE_ATTRIBUTE_DEVICE = $40;
FILE_ATTRIBUTE_DIRECTORY = $10;
FILE_ATTRIBUTE_ENCRYPTED = $4000;
FILE_ATTRIBUTE_HIDDEN = $2;
FILE_ATTRIBUTE_INTEGRITY_STREAM = $8000;
FILE_ATTRIBUTE_NORMAL = $80;
FILE_ATTRIBUTE_NOT_CONTENT_INDEXED = $2000;
FILE_ATTRIBUTE_NO_SCRUB_DATA = $20000;
FILE_ATTRIBUTE_OFFLINE = $1000;
FILE_ATTRIBUTE_READONLY = $1;
FILE_ATTRIBUTE_REPARSE_POINT = $400;
FILE_ATTRIBUTE_SPARSE_FILE = $200;
FILE_ATTRIBUTE_SYSTEM = $4;
FILE_ATTRIBUTE_TEMPORARY = $100;
FILE_ATTRIBUTE_VIRTUAL = $10000;
// Flags for field TVSFixedFileInfo.dwFileFlags
VS_FF_DEBUG = $00000001;
VS_FF_INFOINFERRED = $00000010;
VS_FF_PATCHED = $00000004;
VS_FF_PRERELEASE = $00000002;
VS_FF_PRIVATEBUILD = $00000008;
VS_FF_SPECIALBUILD = $00000020;
// Flags for field TVSFixedFileInfo.dwFileOS
VOS_DOS = $00010000;
VOS_NT = $00040000;
VOS__WINDOWS16 = $00000001;
VOS__WINDOWS32 = $00000004;
VOS_OS216 = $00020000;
VOS_OS232 = $00030000;
VOS__PM16 = $00000002;
VOS__PM32 = $00000003;
VOS_UNKNOWN = $00000000;
VOS_DOS_WINDOWS16 = $00010001;
VOS_DOS_WINDOWS32 = $00010004;
VOS_NT_WINDOWS32 = $00040004;
VOS_OS216_PM16 = $00020002;
VOS_OS232_PM32 = $00030003;
// Flags for field TVSFixedFileInfo.dwFileType
VFT_APP = $00000001;
VFT_DLL = $00000002;
VFT_DRV = $00000003;
VFT_FONT = $00000004;
VFT_STATIC_LIB = $00000007;
VFT_UNKNOWN = $00000000;
VFT_VXD = $00000005;
// Flags for field TVSFixedFileInfo.dwFileSubtype when
// TVSFixedFileInfo.dwFileType is set to VFT_DRV
VFT2_DRV_COMM = $0000000A;
VFT2_DRV_DISPLAY = $00000004;
VFT2_DRV_INSTALLABLE = $00000008;
VFT2_DRV_KEYBOARD = $00000002;
VFT2_DRV_LANGUAGE = $00000003;
VFT2_DRV_MOUSE = $00000005;
VFT2_DRV_NETWORK = $00000006;
VFT2_DRV_PRINTER = $00000001;
VFT2_DRV_SOUND = $00000009;
VFT2_DRV_SYSTEM = $00000007;
VFT2_DRV_VERSIONED_PRINTER = $0000000C;
VFT2_UNKNOWN = $00000000;
// Flags for field TVSFixedFileInfo.dwFileSubtype when
// TVSFixedFileInfo.dwFileType is set to VFT_FONT
VFT2_FONT_RASTER = $00000001;
VFT2_FONT_TRUETYPE = $00000003;
VFT2_FONT_VECTOR = $00000002;
{$ENDIF}
{===============================================================================
TWinFileInfo - types
===============================================================================}
{$IFDEF Windows}
{
Following structures are used to store information about requested file in
a more user-friendly and better accessible way.
}
type
TWFIFileAttributesDecoded = record
Archive: Boolean;
Compressed: Boolean;
Device: Boolean;
Directory: Boolean;
Encrypted: Boolean;
Hidden: Boolean;
IntegrityStream: Boolean;
Normal: Boolean;
NotContentIndexed: Boolean;
NoScrubData: Boolean;
Offline: Boolean;
ReadOnly: Boolean;
ReparsePoint: Boolean;
SparseFile: Boolean;
System: Boolean;
Temporary: Boolean;
Virtual: Boolean;
end;
//------------------------------------------------------------------------------
{
Group of structures used to store decoded information from fixed file info
part of version information resource.
}
type
TWFIFixedFileInfo_VersionMembers = record
Major: UInt16;
Minor: UInt16;
Release: UInt16;
Build: UInt16;
end;
TWFIFixedFileInfo_FileFlags = record
Debug: Boolean;
InfoInferred: Boolean;
Patched: Boolean;
Prerelease: Boolean;
PrivateBuild: Boolean;
SpecialBuild: Boolean;
end;
TWFIFixedFileInfoDecoded = record
FileVersionFull: UInt64;
FileVersionMembers: TWFIFixedFileInfo_VersionMembers;
FileVersionStr: String;
ProductVersionFull: UInt64;
ProductVersionMembers: TWFIFixedFileInfo_VersionMembers;
ProductVersionStr: String;
FileFlags: TWFIFixedFileInfo_FileFlags;
FileOSStr: String;
FileTypeStr: String;
FileSubTypeStr: String;
FileDateFull: UInt64;
end;
//------------------------------------------------------------------------------
{
Following structures are used to hold partially parsed information from
version information structure.
}
type
TWFIVersionInfoStruct_String = record
Address: Pointer;
Size: TMemSize;
Key: WideString;
ValueType: Integer;
ValueSize: TMemSize;
Value: Pointer;
end;
TWFIVersionInfoStruct_StringTable = record
Address: Pointer;
Size: TMemSize;
Key: WideString;
ValueType: Integer;
ValueSize: TMemSize;
Strings: array of TWFIVersionInfoStruct_String;
end;
TWFIVersionInfoStruct_StringFileInfo = record
Address: Pointer;
Size: TMemSize;
Key: WideString;
ValueType: Integer;
ValueSize: TMemSize;
StringTables: array of TWFIVersionInfoStruct_StringTable;
end;
TWFIVersionInfoStruct_Var = record
Address: Pointer;
Size: TMemSize;
Key: WideString;
ValueType: Integer;
ValueSize: TMemSize;
Value: Pointer;
end;
TWFIVersionInfoStruct_VarFileInfo = record
Address: Pointer;
Size: TMemSize;
Key: WideString;
ValueType: Integer;
ValueSize: TMemSize;
Vars: array of TWFIVersionInfoStruct_Var;
end;
TWFIVersionInfoStruct = record
Address: Pointer;
Size: TMemSize;
Key: WideString;
ValueType: Integer;
ValueSize: TMemSize;
FixedFileInfo: Pointer;
FixedFileInfoSize: TMemSize;
StringFileInfos: array of TWFIVersionInfoStruct_StringFileInfo;
VarFileInfos: array of TWFIVersionInfoStruct_VarFileInfo;
end;
//------------------------------------------------------------------------------
{
Following structures are used to store fully parsed information from version
information structure.
}
type
TWFITranslationItem = record
LanguageName: String;
LanguageStr: String;
case Integer of
0: (Language: UInt16;
CodePage: UInt16);
1: (Translation: UInt32);
end;
TWFIStringTableItem = record
Key: String;
Value: String;
end;
TWFIStringTable = record
Translation: TWFITranslationItem;
Strings: array of TWFIStringTableItem;
end;
{$ELSE}//-----------------------------------------------------------------------
{
Types used for decoded file mode - stores information about file type and
permissions.
}
type
TWFIFileType = (ftUnknown,ftFIFO,ftCharacterDevice,ftDirectory,ftBlockDevice,
ftRegularFile,ftSymbolicLink,ftSocket);
TWFIFilePermission = (fpUserRead,fpUserWrite,fpUserExecute,
fpGroupRead,fpGroupWrite,fpGroupExecute,
fpOthersRead,fpOthersWrite,fpOthersExecute,
fpSetUserID,fpSetGroupID,fpSticky);
TWFIFilePermissions = set of TWFIFilePermission;
{$ENDIF}
{===============================================================================
TWinFileInfo - loading strategy
===============================================================================}
{
Loading strategy determines what file information will be loaded and decoded
or parsed and how.
Only one operation cannot be affected by loading strategy and is always
performed even when loading strategy indicates no operation - a check whether
the file actually exists.
If one strategy requires some other strategy to be active, it means this
strategy will not produce any result if the required one is not active, it
does NOT mean an error will occur.
lsaKeepOpen
the file is kept open until the TWinFileInfo object is destroyed, when not
present the file is closed as soon as possible
lsaLoadBasicInfo
load size, times, attributes and other basic info
lsaDecodeBasicInfo
decode attributes and fills size string, requires lsaLoadBasicInfo
lsaLoadVersionInfo (windows only)
load version info, also loads translations and strings
lsaParseVersionInfo (windows only)
do low-level parsing of version info data and enumerates keys, requires
lsaLoadVersionInfo
lsaLoadFixedFileInfo (windows only)
load fixed file info, requires lsaLoadVersionInfo
lsaDecodeFixedFileInfo (windows only)
decode fixed file info if present, has effect only if FFI is present
(indicated by (f)VersionInfoFixedFileInfoPresent), requires
lsaLoadFixedFileInfo
lsaVerInfoPredefinedKeys (windows only)
when no key is successfully enumerated (see lsaParseVersionInfo),
a predefined set of keys is used, requires lsaParseVersionInfo
lsaVerInfoExtractTranslations (windows only)
extract translations from parsed version info - might get some translation
that normal translation loading (see lsaLoadVersionInfo) missed, requires
lsaParseVersionInfo
}
type
TWFILoadingStrategyAction = (lsaKeepOpen,lsaLoadBasicInfo,lsaDecodeBasicInfo
{$IFDEF Windows},lsaLoadVersionInfo,lsaParseVersionInfo,lsaLoadFixedFileInfo,
lsaDecodeFixedFileInfo,lsaVerInfoPredefinedKeys,lsaVerInfoExtractTranslations{$ENDIF});
TWFILoadingStrategy = set of TWFILoadingStrategyAction;
// some predefined loading strategies (no need to define type of the set)
const
WFI_LS_LoadNone = [];
WFI_LS_BasicInfo = [lsaLoadBasicInfo,lsaDecodeBasicInfo];
{$IFDEF Windows}
WFI_LS_FullInfo = WFI_LS_BasicInfo + [lsaLoadVersionInfo,lsaParseVersionInfo,
lsaLoadFixedFileInfo,lsaDecodeFixedFileInfo];
WFI_LS_VersionInfo = [lsaLoadVersionInfo,lsaParseVersionInfo,lsaVerInfoExtractTranslations];
WFI_LS_VersionInfoAndFFI = WFI_LS_VersionInfo + [lsaLoadFixedFileInfo,lsaDecodeFixedFileInfo];
WFI_LS_All = WFI_LS_FullInfo + [lsaVerInfoPredefinedKeys,lsaVerInfoExtractTranslations];
{$ELSE}
WFI_LS_All = WFI_LS_BasicInfo;
{$ENDIF}
{===============================================================================
TWinFileInfo - class declaration
===============================================================================}
type
TWinFileInfo = class(TObject)
protected
// internals
fLoadingStrategy: TWFILoadingStrategy;
fFormatSettings: TFormatSettings;
// basic initial file info
fName: String;
fLongName: String;
{$IFDEF Windows}
fShortName: String;
{$ENDIF}
fExists: Boolean;
fFileHandle: TWFIFileHandle;
// basic loaded file info
fSize: UInt64;
fSizeStr: String;
{$IFDEF Windows}
fCreationTimeRaw: TDateTime; // time how it is actually stored for the file
fLastAccessTimeRaw: TDateTime;
fLastWriteTimeRaw: TDateTime;
fCreationTime: TDateTime; // stored time converted to local time
fLastAccessTime: TDateTime;
fLastWriteTime: TDateTime;
fNumberOfLinks: UInt32;
{
combination of volume serial and file id can be used to determine file
path equality (also for directories, but WFI does not support dirs)
}
fVolumeSerialNumber: UInt32;
fFileID: UInt64;
// file attributes (part of basic info)
fAttributesFlags: DWORD;
fAttributesStr: String;
fAttributesText: String;
fAttributesDecoded: TWFIFileAttributesDecoded;
{$ELSE}
fLastAccessTimeRaw: TDateTime;
fLastModificationTimeRaw: TDateTime;
fLastStatusChangeTimeRaw: TDateTime;
fLastAccessTime: TDateTime;
fLastModificationTime: TDateTime;
fLastStatusChangeTime: TDateTime;
fNumberOfHardLinks: PtrUInt;
// device ID and inode is used to determine file path equality
fDeviceID: UInt64;
fiNodeNumber: UInt64;
fBlockSize: PtrUInt;
fBlocks: UInt64;
fOwnerUserID: UInt32;
fOwnerGroupID: UInt32;
fMode: UInt32;
// decoded mode
fFileType: TWFIFileType;
fFileTypeStr: String;
fPermissions: TWFIFilePermissions;
fPermissionsStr: String;
{$ENDIF}
{$IFDEF Windows}
// version info unparsed data
fVerInfoSize: TMemSize;
fVerInfoData: Pointer;
// version info data
fVersionInfoPresent: Boolean;
// version info - fixed file info
fVersionInfoFFIPresent: Boolean;
fVersionInfoFFI: TVSFixedFileInfo;
fVersionInfoFFIDecoded: TWFIFixedFileInfoDecoded;
// version info partially parsed data
fVersionInfoStruct: TWFIVersionInfoStruct;
// version info fully parsed data
fVersionInfoParsed: Boolean;
fVersionInfoStringTables: array of TWFIStringTable;
// getters for fVersionInfoStruct fields
Function GetVersionInfoStringTableCount: Integer; virtual;
Function GetVersionInfoStringTable(Index: Integer): TWFIStringTable; virtual;
Function GetVersionInfoTranslationCount: Integer; virtual;
Function GetVersionInfoTranslation(Index: Integer): TWFITranslationItem; virtual;
Function GetVersionInfoStringCount(Table: Integer): Integer; virtual;
Function GetVersionInfoString(Table,Index: Integer): TWFIStringTableItem; virtual;
Function GetVersionInfoValue(const Language,Key: String): String; virtual;
// version info loading methods
procedure VersionInfo_LoadTranslations; virtual;
procedure VersionInfo_LoadStrings; virtual;
// version info parsing methods
procedure VersionInfo_Parse; virtual;
procedure VersionInfo_ExtractTranslations; virtual;
procedure VersionInfo_EnumerateKeys; virtual;
{$ENDIF}
// loading and decoding methods
procedure LoadBasicInfo; virtual;
procedure DecodeBasicInfo; virtual;
{$IFDEF Windows}
procedure LoadVersionInfo; virtual;
procedure LoadFixedFileInfo; virtual;
procedure DecodeFixedFileInfo; virtual;
{$ENDIF}
// other protected methods
procedure Clear; virtual;
procedure Initialize(const FileName: String); virtual;
procedure Finalize; virtual;
public
constructor Create(LoadingStrategy: TWFILoadingStrategy = WFI_LS_All); overload;
constructor Create(const FileName: String; LoadingStrategy: TWFILoadingStrategy = WFI_LS_All); overload;
destructor Destroy; override;
procedure Refresh; virtual;
procedure CreateReport(Strings: TStrings); overload; virtual;
Function CreateReport: String; overload; virtual;
{$IFDEF Windows}
Function IndexOfVersionInfoStringTable(Translation: DWORD): Integer; virtual;
Function IndexOfVersionInfoString(Table: Integer; const Key: String): Integer; virtual;
Function FindVersionInfoStringTable(Translation: DWORD; out Index: Integer): Boolean; virtual;
Function FindVersionInfoString(Table: Integer; const Key: String; out Index: Integer): Boolean; virtual;
{$ENDIF}
// internals
property LoadingStrategy: TWFILoadingStrategy read fLoadingStrategy write fLoadingStrategy;
property FormatSettings: TFormatSettings read fFormatSettings write fFormatSettings;
// basic initial file info
property Name: String read fName;
property LongName: String read fLongName;
{$IFDEF Windows}
property ShortName: String read fShortName;
{$ENDIF}
property Exists: Boolean read fExists;
property FileHandle: TWFIFileHandle read fFileHandle;
// basic loaded file info
property Size: UInt64 read fSize;
property SizeStr: String read fSizeStr;
{$IFDEF Windows}
property CreationTimeRaw: TDateTime read fCreationTime;
property LastAccessTimeRaw: TDateTime read fLastAccessTime;
property LastWriteTimeRaw: TDateTime read fLastWriteTime;
property CreationTime: TDateTime read fCreationTime;
property LastAccessTime: TDateTime read fLastAccessTime;
property LastWriteTime: TDateTime read fLastWriteTime;
property NumberOfLinks: UInt32 read fNumberOfLinks;
property VolumeSerialNumber: UInt32 read fVolumeSerialNumber;
property FileID: UInt64 read fFileID;
// file attributes (part of basic info)
property AttributesFlags: DWORD read fAttributesFlags;
property AttributesStr: String read fAttributesStr;
property AttributesText: String read fAttributesText;
property AttributesDecoded: TWFIFileAttributesDecoded read fAttributesDecoded;
{$ELSE}
property LastAccessTime: TDateTime read fLastAccessTime;
property LastModificationTime: TDateTime read fLastModificationTime;
property LastStatusChangeTime: TDateTime read fLastStatusChangeTime;
property NumberOfHardLinks: PtrUInt read fNumberOfHardLinks;
property DeviceID: UInt64 read fDeviceID;
property iNodeNumber: UInt64 read fiNodeNumber;
property BlockSize: PtrUInt read fBlockSize;
property Blocks: UInt64 read fBlocks;
property OwnerUserID: UInt32 read fOwnerUserID;
property OwnerGroupID: UInt32 read fOwnerGroupID;
property Mode: UInt32 read fMode;
// decoded mode
property FileType: TWFIFileType read fFileType;
property FileTypeStr: String read fFileTypeStr;
property Permissions: TWFIFilePermissions read fPermissions;
property PermissionsStr: String read fPermissionsStr;
{$ENDIF}
{$IFDEF Windows}
// version info unparsed data
property VerInfoSize: PtrUInt read fVerInfoSize;
property VerInfoData: Pointer read fVerInfoData;
// version info data
property VersionInfoPresent: Boolean read fVersionInfoPresent;
// version info - fixed file info
property VersionInfoFixedFileInfoPresent: Boolean read fVersionInfoFFIPresent;
property VersionInfoFixedFileInfo: TVSFixedFileInfo read fVersionInfoFFI;
property VersionInfoFixedFileInfoDecoded: TWFIFixedFileInfoDecoded read fVersionInfoFFIDecoded;
// version info partially parsed data
property VersionInfoStruct: TWFIVersionInfoStruct read fVersionInfoStruct;
// version info fully parsed data
property VersionInfoParsed: Boolean read fVersionInfoParsed;
property VersionInfoStringTableCount: Integer read GetVersionInfoStringTableCount;
property VersionInfoStringTables[Index: Integer]: TWFIStringTable read GetVersionInfoStringTable;
property VersionInfoTranslationCount: Integer read GetVersionInfoTranslationCount;
property VersionInfoTranslations[Index: Integer]: TWFITranslationItem read GetVersionInfoTranslation;
property VersionInfoStringCount[Table: Integer]: Integer read GetVersionInfoStringCount;
property VersionInfoStrings[Table,Index: Integer]: TWFIStringTableItem read GetVersionInfoString;
property VersionInfoValues[const Language,Key: String]: String read GetVersionInfoValue; default;
{$ENDIF}
end;
implementation
uses
{$IFDEF Windows}
{$IFDEF FPC} jwaPSApi{$ELSE} PSApi{$ENDIF}, StrRect
{$ELSE}
DateUtils, BaseUnix, DL
{$ENDIF};
{$IFDEF FPC_DisableWarns}
{$DEFINE FPCDWM}
{$DEFINE W4055:={$WARN 4055 OFF}} // Conversion between ordinals and pointers is not portable
{$DEFINE W5057:={$WARN 5057 OFF}} // Local variable "$1" does not seem to be initialized
{$PUSH}{$WARN 2005 OFF} // Comment level $1 found
{$IF Defined(FPC) and (FPC_FULLVERSION >= 30000)}
{$DEFINE W5058:=}
{$DEFINE W5092:={$WARN 5092 OFF}} // Variable "$1" of a managed type does not seem to be initialized
{$ELSE}
{$DEFINE W5058:={$WARN 5058 OFF}} // Variable "$1" does not seem to be initialized
{$DEFINE W5092:=}
{$IFEND}
{$IF Defined(FPC) and (FPC_FULLVERSION >= 30200)}
{$DEFINE W6058:={$WARN 6058 OFF}} // Call to subroutine "$1" marked as inline is not inlined
{$ELSE}
{$DEFINE W6058:=}
{$IFEND}
{$POP}
{$ENDIF}
{===============================================================================
--------------------------------------------------------------------------------
Utility functions
--------------------------------------------------------------------------------
===============================================================================}
{===============================================================================
Utility functions - implementation
===============================================================================}
{-------------------------------------------------------------------------------
Utility functions - internal functions
-------------------------------------------------------------------------------}
procedure ProcessFileSize(FileSize: UInt64; out Number: Double; out Decimals: Integer; out UnitPrefix: String);
{
This routine takes size of a file in bytes and produces floating-point number
that can be used in textual representation of this size. Depending on a
"magnitude" of the size, a unit prefix is selected and number of decimal
digits to show is calculated. Also, the number is properly divided for the
selected unit prefix.
}
const
BinaryPrefix: array[0..8] of String = ('','Ki','Mi','Gi','Ti','Pi','Ei','Zi','Yi');
PrefixShift = 10;
var
Magnitude: Integer;
begin
Magnitude := -1;
repeat
Inc(Magnitude);
until ((FileSize shr (PrefixShift * Succ(Magnitude))) = 0) or (Magnitude >= 8);
case FileSize shr (PrefixShift * Magnitude) of
1..9: Decimals := 2;
10..99: Decimals := 1;
else
Decimals := 0;
end;
Number := (FileSize shr (PrefixShift * Magnitude));
If Magnitude > 0 then
Number := Number + (((FileSize shr (PrefixShift * Pred(Magnitude))) and 1023) / 1024)
else
Decimals := 0;
UnitPrefix := BinaryPrefix[Magnitude];
end;
//------------------------------------------------------------------------------
{$IFDEF Windows}{$IFDEF FPCDWM}{$PUSH}W5058 W5092{$ENDIF}{$ENDIF}
procedure InitFormatSettings(out FormatSettings: TFormatSettings);
begin
{$WARN SYMBOL_PLATFORM OFF}
{$IF not Defined(FPC) and (CompilerVersion >= 18)} // Delphi 2006+
FormatSettings := TFormatSettings.Create(LOCALE_USER_DEFAULT);
{$ELSE}
{$IFDEF Windows}
GetLocaleFormatSettings(LOCALE_USER_DEFAULT,FormatSettings);
{$ELSE}
// non-windows
FormatSettings := DefaultFormatSettings;
{$ENDIF}
{$IFEND}
{$WARN SYMBOL_PLATFORM ON}
end;
{$IFDEF Windows}{$IFDEF FPCDWM}{$POP}{$ENDIF}{$ENDIF}
{$IFDEF Windows}
//------------------------------------------------------------------------------
{$IF not Declared(CP_THREAD_ACP)}
const
CP_THREAD_ACP = 3;
{$IFEND}
Function WideToString(const WStr: WideString; AnsiCodePage: UINT = CP_THREAD_ACP): String;
begin
{$IFDEF Unicode}
// unicode Delphi or FPC (String = UnicodeString)
Result := WStr;
{$ELSE}
// non-unicode...
If not UTF8AnsiDefaultStrings then
begin
// CP ansi strings - bare FPC or Delphi
Result := '';
SetLength(Result,WideCharToMultiByte(AnsiCodePage,0,PWideChar(WStr),Length(WStr),nil,0,nil,nil));
WideCharToMultiByte(AnsiCodePage,0,PWideChar(WStr),Length(WStr),PAnsiChar(Result),Length(Result) * SizeOf(AnsiChar),nil,nil);
// a wrong codepage might be stored, try translation with default cp
If (AnsiCodePage <> CP_THREAD_ACP) and (Length(Result) <= 0) and (Length(WStr) > 0) then
Result := WideToString(WStr);
end
// UTF8 ansi strings
else Result := StringToUTF8(WStr);
{$ENDIF}
end;
{$ENDIF}
{-------------------------------------------------------------------------------
Utility functions - public functions
-------------------------------------------------------------------------------}
Function GetFileSize(const FileName: String): UInt64;
begin
Result := 0;
with TWinFileInfo.Create(FileName,[lsaLoadBasicInfo]) do
try
If Exists then
Result := Size
else
raise EWFIFileError.CreateFmt('GetFileSize: File "%s" does not exist.',[FileName]);
finally
Free;
end;
end;
//------------------------------------------------------------------------------
Function FileSizeToStr(FileSize: UInt64; FormatSettings: TFormatSettings; SpaceUnit: Boolean = True): String;
var
Number: Double;
Decimals: Integer;
UnitPrefix: String;
begin
ProcessFileSize(FileSize,Number,Decimals,UnitPrefix);
If SpaceUnit then
Result := Format('%.*f %sB',[Decimals,Number,UnitPrefix],FormatSettings)
else
Result := Format('%.*f%sB',[Decimals,Number,UnitPrefix],FormatSettings);
end;
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Function FileSizeToStr(FileSize: UInt64; SpaceUnit: Boolean = True): String;
var
Number: Double;
Decimals: Integer;
UnitPrefix: String;
begin
ProcessFileSize(FileSize,Number,Decimals,UnitPrefix);
If SpaceUnit then
Result := Format('%.*f %sB',[Decimals,Number,UnitPrefix])
else
Result := Format('%.*f%sB',[Decimals,Number,UnitPrefix]);
end;
//------------------------------------------------------------------------------
Function FileSizeToStrThr(FileSize: UInt64; SpaceUnit: Boolean = True): String;
var
FormatSettings: TFormatSettings;
begin
InitFormatSettings(FormatSettings);
Result := FileSizeToStr(FileSize,FormatSettings,SpaceUnit);
end;
//------------------------------------------------------------------------------
Function SameFile(const A,B: String): Boolean;
var
AInfo,BInfo: TWinFileInfo;
begin
Result := False;
AInfo := TWinFileInfo.Create(A,[lsaLoadBasicInfo,lsaKeepOpen]);
try
If AInfo.Exists then
begin
BInfo := TWinFileInfo.Create(B,[lsaLoadBasicInfo,lsaKeepOpen]);
try
If BInfo.Exists then
{$IFDEF Windows}
Result := (AInfo.VolumeSerialNumber = BInfo.VolumeSerialNumber) and (AInfo.FileID = BInfo.FileID)
{$ELSE}
Result := (AInfo.DeviceID = BInfo.DeviceID) and (AInfo.iNodeNumber = BInfo.iNodeNumber)
{$ENDIF}
else
raise EWFIFileError.CreateFmt('SameFile: File "%s" does not exist.',[B]);
finally
BInfo.Free;
end;
end
else raise EWFIFileError.CreateFmt('SameFile: File "%s" does not exist.',[A]);
finally
AInfo.Free;
end;
end;
{===============================================================================
--------------------------------------------------------------------------------
TWinFileInfo
--------------------------------------------------------------------------------
===============================================================================}
{===============================================================================
TWinFileInfo - system constants
===============================================================================}
{$IFNDEF Windows}
const
O_NOATIME = $40000; // do not set atime
O_PATH = $200000; // resolve pathname but do not open file
S_ISUID = $800; // set-user-ID bit
S_ISGID = $400; // set-group-ID bit
S_ISVTX = $200; // sticky bit
{$ENDIF}
{===============================================================================
TWinFileInfo - conversion tables
===============================================================================}
{$IFDEF Windows}
// structures used in conversion tables as items
type
TWFIAttributeString = record
Flag: DWORD;
Text: String;
Str: String;
end;
TWFIFlagText = record
Flag: DWORD;
Text: String;
end;
//------------------------------------------------------------------------------
{
tables used to convert some binary information (mainly flags) to a textual
representation
}
const
WFI_FILE_ATTR_STRS: array[0..16] of TWFIAttributeString = (
(Flag: FILE_ATTRIBUTE_ARCHIVE; Text: 'Archive'; Str: 'A'),
(Flag: FILE_ATTRIBUTE_COMPRESSED; Text: 'Compressed'; Str: 'C'),
(Flag: FILE_ATTRIBUTE_DEVICE; Text: 'Device'; Str: ''),
(Flag: FILE_ATTRIBUTE_DIRECTORY; Text: 'Directory'; Str: 'D'),
(Flag: FILE_ATTRIBUTE_ENCRYPTED; Text: 'Encrypted'; Str: 'E'),
(Flag: FILE_ATTRIBUTE_HIDDEN; Text: 'Hidden'; Str: 'H'),
(Flag: FILE_ATTRIBUTE_INTEGRITY_STREAM; Text: 'Integrity stream'; Str: ''),
(Flag: FILE_ATTRIBUTE_NORMAL; Text: 'Normal'; Str: 'N'),
(Flag: FILE_ATTRIBUTE_NOT_CONTENT_INDEXED; Text: 'Not content indexed'; Str: 'I'),
(Flag: FILE_ATTRIBUTE_NO_SCRUB_DATA; Text: 'No scrub data'; Str: ''),
(Flag: FILE_ATTRIBUTE_OFFLINE; Text: 'Offline'; Str: 'O'),
(Flag: FILE_ATTRIBUTE_READONLY; Text: 'Read only'; Str: 'R'),
(Flag: FILE_ATTRIBUTE_REPARSE_POINT; Text: 'Reparse point'; Str: 'L'),
(Flag: FILE_ATTRIBUTE_SPARSE_FILE; Text: 'Sparse file'; Str: 'P'),
(Flag: FILE_ATTRIBUTE_SYSTEM; Text: 'System'; Str: 'S'),
(Flag: FILE_ATTRIBUTE_TEMPORARY; Text: 'Temporary'; Str: 'T'),
(Flag: FILE_ATTRIBUTE_VIRTUAL; Text: 'Virtual'; Str: ''));
//------------------------------------------------------------------------------
WFI_FFI_FILE_OS_STRS: array[0..13] of TWFIFlagText = (
(Flag: VOS_DOS; Text: 'MS-DOS'),
(Flag: VOS_NT; Text: 'Windows NT'),
(Flag: VOS__WINDOWS16; Text: '16-bit Windows'),
(Flag: VOS__WINDOWS32; Text: '32-bit Windows'),
(Flag: VOS_OS216; Text: '16-bit OS/2'),
(Flag: VOS_OS232; Text: '32-bit OS/2'),
(Flag: VOS__PM16; Text: '16-bit Presentation Manager'),
(Flag: VOS__PM32; Text: '32-bit Presentation Manager'),
(Flag: VOS_UNKNOWN; Text: 'Unknown'),
(Flag: VOS_DOS_WINDOWS16; Text: '16-bit Windows running on MS-DOS'),
(Flag: VOS_DOS_WINDOWS32; Text: '32-bit Windows running on MS-DOS'),
(Flag: VOS_NT_WINDOWS32; Text: 'Windows NT'),
(Flag: VOS_OS216_PM16; Text: '16-bit Presentation Manager running on 16-bit OS/2'),
(Flag: VOS_OS232_PM32; Text: '32-bit Presentation Manager running on 32-bit OS/2'));
//------------------------------------------------------------------------------
WFI_FFI_FILE_TYPE_STRS: array[0..6] of TWFIFlagText = (
(Flag: VFT_APP; Text: 'Application'),
(Flag: VFT_DLL; Text: 'DLL'),
(Flag: VFT_DRV; Text: 'Device driver'),
(Flag: VFT_FONT; Text: 'Font'),
(Flag: VFT_STATIC_LIB; Text: 'Static-link library'),
(Flag: VFT_UNKNOWN; Text: 'Unknown'),
(Flag: VFT_VXD; Text: 'Virtual device'));
//------------------------------------------------------------------------------
WFI_FFI_FILE_SUBTYPE_DRV_STRS: array[0..11] of TWFIFlagText = (
(Flag: VFT2_DRV_COMM; Text: 'Communications driver'),
(Flag: VFT2_DRV_DISPLAY; Text: 'Display driver'),
(Flag: VFT2_DRV_INSTALLABLE; Text: 'Installable driver'),
(Flag: VFT2_DRV_KEYBOARD; Text: 'Keyboard driver'),
(Flag: VFT2_DRV_LANGUAGE; Text: 'Language driver'),
(Flag: VFT2_DRV_MOUSE; Text: 'Mouse driver'),
(Flag: VFT2_DRV_NETWORK; Text: 'Network driver'),
(Flag: VFT2_DRV_PRINTER; Text: 'Printer driver'),
(Flag: VFT2_DRV_SOUND; Text: 'Sound driver'),
(Flag: VFT2_DRV_SYSTEM; Text: 'System driver'),
(Flag: VFT2_DRV_VERSIONED_PRINTER; Text: 'Versioned printer driver'),
(Flag: VFT2_UNKNOWN; Text: 'Unknown'));
//------------------------------------------------------------------------------
WFI_FFI_FILE_SUBTYPE_FONT_STRS: array[0..3] of TWFIFlagText = (
(Flag: VFT2_FONT_RASTER; Text: 'Raster font'),
(Flag: VFT2_FONT_TRUETYPE; Text: 'TrueType font'),