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|
unit ScanMiniDump_MainForm;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, System.Types,
Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Vcl.ExtCtrls;
type
TScanMiniDumpForm = class(TForm)
btnScanMiniDump: TButton;
lblScanMiniDump: TLabel;
MemoScanMiniDump: TMemo;
pnlScanMiniDumpActions: TPanel;
lblScanMiniDumpCount: TLabel;
procedure btnScanMiniDumpClick(Sender: TObject);
procedure FormCloseQuery(Sender: TObject; var CanClose: Boolean);
private
{ Déclarations privées }
FScanning: Boolean;
FScannedCount: Integer;
FScanAborted: Boolean;
FTickProcessMessages: DWORD;
procedure ScanMiniDumpProgress(const ADirectory: TFileName);
public
{ Déclarations publiques }
end;
var
ScanMiniDumpForm: TScanMiniDumpForm;
implementation
uses {$WARN UNIT_PLATFORM OFF}Vcl.FileCtrl{$WARN UNIT_PLATFORM ON};
{$R *.dfm}
type
TScanMiniDumpProgressEvent = procedure(const ADirectory: TFileName) of object;
procedure ScanMiniDump(const ADirectory: TFileName; AExeFileNames: TStrings; AProgressEvent: TScanMiniDumpProgressEvent = nil); forward;
procedure TScanMiniDumpForm.btnScanMiniDumpClick(Sender: TObject);
var
Dir: string;
begin
if FScanning then
begin
FScanAborted := MessageDlg('Arrêter le scan ?', mtConfirmation, mbYesNo, 0) = mrYes;
Exit;
end;
Dir := ExtractFileDir(Application.ExeName);
if Vcl.FileCtrl.SelectDirectory('Dossier des Mini Dump', '', Dir, [sdNewUI, sdShowShares, sdShowEdit]) then
begin
FScanning := True;
try
FScannedCount := 0;
FScanAborted := False;
MemoScanMiniDump.Lines.Clear();
ScanMiniDump(Dir, MemoScanMiniDump.Lines, ScanMiniDumpProgress);
finally
FScanning := False;
end;
end;
end;
procedure TScanMiniDumpForm.FormCloseQuery(Sender: TObject; var CanClose: Boolean);
begin
if FScanning then
begin
FScanAborted := MessageDlg('Arrêter le scan ?', mtConfirmation, mbYesNo, 0) = mrYes;
CanClose := FScanAborted;
Exit;
end;
end;
procedure TScanMiniDumpForm.ScanMiniDumpProgress(const ADirectory: TFileName);
begin
Inc(FScannedCount);
lblScanMiniDumpCount.Caption := IntToStr(FScannedCount) + ' dossiers/fichiers scannés';
lblScanMiniDump.Caption := ADirectory;
if FScanAborted then
Abort;
// Pour que l'on puisse voir la progression, on réagit de temps en temps !
if (GetTickCount() - FTickProcessMessages) > 1000 then
begin
Application.ProcessMessages();
FTickProcessMessages := GetTickCount();
end;
end;
procedure ScanMiniDump(const ADirectory: TFileName; AExeFileNames: TStrings; AProgressEvent: TScanMiniDumpProgressEvent = nil);
function SearchBinaryInFile(const FileName: string; const SearchBinary: TByteDynArray; out OffSets: TInt64DynArray; KeepOffSet: Boolean = False; Threshold: Integer = MaxInt; AcceptOverlap: Boolean = False): Integer;
const
BUF_SIZE: Integer = 1024;
ZERO: Int64 = 0;
FILE_BEGIN = 0;
FILE_CURRENT = 1;
FILE_END = 2;
var
FileToSearch: Integer;
FileLength, iReaded: Int64;
SearchBuf: array of Byte;
iSearchBufPos, iSearch, iMark, iCountFound, iRememberFound, iRememberOverlap: Integer;
SearchLen: Integer;
AmtTransferred: Integer;
LastFound: Boolean;
begin
SearchLen := Length(SearchBinary);
Result := 0;
if SearchLen <= 0 then
Exit;
SetLength(SearchBuf, BUF_SIZE);
iReaded := 0;
FileToSearch := FileOpen(FileName, fmOpenRead);
if FileToSearch < 0 then
Exit;
try
FileLength := FileSeek(FileToSearch, ZERO, FILE_END);
FileSeek(FileToSearch, ZERO, FILE_BEGIN);
iCountFound := 0;
while iReaded < FileLength do
begin
AmtTransferred := FileRead(FileToSearch, SearchBuf[0], BUF_SIZE); // [0] parce que c'est un tableau dynamique
iRememberFound := iCountFound;
iRememberOverlap := iRememberFound;
iSearchBufPos := 0;
iSearch := 0;
LastFound := False;
while iSearchBufPos < AmtTransferred do
begin
// Comparaison Octet par Octet du Tableau d'Octet recherché
for iMark := iCountFound to SearchLen - 1 do // -1 car type Dyn Array
begin
iSearch := iSearchBufPos + iMark - iRememberFound;
if iSearch >= AmtTransferred then
Break;
if SearchBuf[iSearch] = SearchBinary[iMark] then
begin
Inc(iCountFound);
LastFound := iCountFound >= SearchLen;
if LastFound then
begin
Inc(Result);
if KeepOffSet then
begin
SetLength(OffSets, Length(OffSets) + 1);
if AcceptOverlap then
OffSets[High(OffSets)] := iReaded + iSearchBufPos - iRememberOverlap
else
OffSets[High(OffSets)] := iReaded + iSearchBufPos - iRememberFound;
end;
if Result = Threshold then
Exit;
if AcceptOverlap then
begin
if iRememberOverlap = 0 then
Inc(iSearchBufPos, 1)
else
Dec(iRememberOverlap);
end
else
Inc(iSearchBufPos, SearchLen - iRememberFound);
iCountFound := 0;
iRememberFound := 0;
Break;
end;
end else begin
iCountFound := 0;
iRememberFound := 0;
Break;
end;
end;
if iSearch >= AmtTransferred then
Break;
if LastFound then
LastFound := False
else
Inc(iSearchBufPos, 1);
end;
Inc(iReaded, AmtTransferred);
end;
finally
FileClose(FileToSearch);
end;
end;
function SearchLastZero(P: PChar; Len: Integer): Integer;
begin
for Result := Len-1 downto 0 do
if P[Result] = #0 then
Exit;
Result := -1;
end;
procedure ScanMiniDumpExtractExeName(const AFileName: TFileName; AExeNames: TStrings);
const
PATTERN_EXE: string = '.exe'; // en UNICODE !!!
PATTERN_USER: string = 'HOMEPATH'; // en UNICODE !!!
PATTERN_HOST: string = 'COMPUTERNAME'; // en UNICODE !!!
var
SearchBinary: TByteDynArray;
FoundBinary: PChar;
OffSetsExe, OffSetsUser, OffSetsHost: TInt64DynArray;
I, LastZero: Integer;
FS: TFileStream;
S, Extraction: string;
SL: TStringList;
begin
// ---- Recherches ----
// ---- EXE ----
SetLength(SearchBinary, Length(PATTERN_EXE) * SizeOf(Char));
Move(PChar(PATTERN_EXE)^, SearchBinary[0], Length(SearchBinary));
SearchBinaryInFile(AFileName, SearchBinary, OffSetsExe, True);
// ---- USER ----
SetLength(SearchBinary, Length(PATTERN_USER) * SizeOf(Char));
Move(PChar(PATTERN_USER)^, SearchBinary[0], Length(SearchBinary));
SearchBinaryInFile(AFileName, SearchBinary, OffSetsUser, True);
// ---- HOST ----
SetLength(SearchBinary, Length(PATTERN_HOST) * SizeOf(Char));
Move(PChar(PATTERN_HOST)^, SearchBinary[0], Length(SearchBinary));
SearchBinaryInFile(AFileName, SearchBinary, OffSetsHost, True);
// ---- Lectures ----
FS := TFileStream.Create(AFileName, fmOpenReadWrite);
try
GetMem(FoundBinary, (MAX_PATH+1) * SizeOf(Char));
try
Extraction := '';
// ---- EXE ----
SL := TStringList.Create();
try
SL.Duplicates := dupIgnore;
SL.Sorted := True;
for I := Low(OffSetsExe) to High(OffSetsExe) do
begin
// blabla.exe
FS.Seek(OffSetsExe[I] - ((MAX_PATH - Length(PATTERN_EXE)) * SizeOf(Char)), soBeginning);
FS.Read(FoundBinary^, MAX_PATH * SizeOf(Char)); // en UNICODE !!!
FoundBinary[MAX_PATH] := #0;
LastZero := SearchLastZero(FoundBinary, MAX_PATH); // on exclue le dernier que l'on force !
if LastZero >= 0 then
begin
SetLength(S, MAX_PATH);
Move(FoundBinary[LastZero+1], S[1], (MAX_PATH-LastZero-1)* SizeOf(Char));
end
else
S := FoundBinary;
if Pos('ComSpec=', S) = 0 then
SL.Add(Trim(S));
end;
Extraction := SL.CommaText;
finally
SL.Free();
end;
// ---- USER ----
for I := Low(OffSetsUser) to High(OffSetsUser) do
begin
// USER=blabla
FS.Seek(OffSetsUser[I], soBeginning);
FS.Read(FoundBinary^, MAX_PATH * SizeOf(Char)); // en UNICODE !!!
FoundBinary[MAX_PATH] := #0;
S := FoundBinary;
Extraction := Extraction + Tabulator + Trim(S);
end;
// ---- HOST ----
for I := Low(OffSetsHost) to High(OffSetsHost) do
begin
// HOST=blabla
FS.Seek(OffSetsHost[I], soBeginning);
FS.Read(FoundBinary^, MAX_PATH * SizeOf(Char)); // en UNICODE !!!
FoundBinary[MAX_PATH] := #0;
S := FoundBinary;
Extraction := Extraction + Tabulator + Trim(S);
end;
AExeNames.Add(Trim(Extraction));
finally
FreeMem(FoundBinary);
end;
finally
FS.Free();
end;
end;
var
Results: TStringList;
Dir: TFileName;
Path, Filter: string;
sr: TSearchRec;
begin
if AExeFileNames is TStringList then
Results := TStringList(AExeFileNames)
else
Results := TStringList.Create();
try
Results.Duplicates := dupIgnore;
Results.Sorted := True;
Path := IncludeTrailingPathDelimiter(ADirectory);
Filter := Path + '*.dmp';
try
if Assigned(AProgressEvent) then
AProgressEvent(Path);
// Les Fichiers !
if FindFirst(Filter, faNormal, sr) = 0 then
begin
try
repeat
ScanMiniDumpExtractExeName(Path + sr.Name, Results);
if Assigned(AProgressEvent) then
AProgressEvent(Path + sr.Name);
DeleteFile(Path + sr.Name);
until FindNext(sr) <> 0;
finally
FindClose(sr);
end;
end;
// Les Dossiers !
Filter := Path + '*';
if FindFirst(Filter, faDirectory, sr) = 0 then
begin
try
repeat
if ((sr.Attr and faDirectory) = faDirectory) and (sr.Name <> '.') and (sr.Name <> '..') then
begin
Dir := Path + sr.Name;
ScanMiniDump(Dir, Results, AProgressEvent);
end;
until FindNext(sr) <> 0;
finally
FindClose(sr);
end;
end;
finally
if AExeFileNames <> Results then
AExeFileNames.Assign(Results);
end;
finally
if AExeFileNames <> Results then
Results.Free();
end;
end;
end. |
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