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|
{ TxxxSpareFTPServer }
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.AfterUserLoginEventHandler(ASender: TIdFTPServerContext);
begin
ASender.HomeDir := PATH_DELIMITER_FTP;
ASender.CurrentDir := PATH_DELIMITER_FTP;
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.ChangeDirectoryEventHandler(ASender: TIdFTPServerContext; var VDirectory: TIdFTPFileName);
var
WinCurrentDir, WinNewDir, WinNewCompleteDir: TFileName;
begin
try
if not StartsStr('..', VDirectory) then
begin
WinCurrentDir := ChangeToWindowsPathDelimiter(ASender.CurrentDir);
WinNewDir := ChangeToWindowsPathDelimiter(VDirectory);
WinNewCompleteDir := ExpandWindowsPath(FLocalRootDirectory, WinCurrentDir, WinNewDir);
if not DirectoryExists(WinNewCompleteDir) then
raise ExxxSpareFTPServerException.Create(Format('%s: Failed to change directory', [VDirectory]));
end
else
begin
WinCurrentDir := ChangeToWindowsPathDelimiter(ASender.CurrentDir);
WinCurrentDir := ExtractFileDir(WinCurrentDir);
ASender.CurrentDir := '';
VDirectory := ChangeToFTPPathDelimiter(WinCurrentDir);
WinNewCompleteDir := ExpandWindowsPath(FLocalRootDirectory, '', WinCurrentDir);
end;
if FileExists(IncludeTrailingPathDelimiter(WinNewCompleteDir) + ParamStr(0)) then
raise ExxxSpareFTPServerException.Create(Format('%s: Not allowed to change directory', [VDirectory]));
except
on E: Exception do
begin
DoError(VDirectory, E.Message);
raise;
end;
end;
end;
//------------------------------------------------------------------------------
class function TxxxSpareFTPServer.ChangeToFTPPathDelimiter(const ADirectory: TIdFTPFileName): TFileName;
begin
Result := TStringSLTHelper.CharReplace(ADirectory, PATH_DELIMITER_WIN, PATH_DELIMITER_FTP);
end;
//------------------------------------------------------------------------------
class function TxxxSpareFTPServer.ChangeToWindowsPathDelimiter(const ADirectory: TIdFTPFileName): TFileName;
begin
Result := TStringSLTHelper.CharReplace(ADirectory, PATH_DELIMITER_FTP, PATH_DELIMITER_WIN);
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.Close();
begin
try
// Fermeture
FFTPServer.Active := False;
except
on E: EIdConnClosedGracefully do
OutputDebugString(PChar('TxxxSpareFTPServer.Close: ' + E.Message));
on E: Exception do
raise ExxxSpareFTPServerException.CreateFmt('Impossible d''arrêter le serveur FTP : %s', [E.Message]);
end;
end;
//------------------------------------------------------------------------------
constructor TxxxSpareFTPServer.Create();
begin
inherited Create();
FFTPServer := TIdFTPServer.Create(nil);
FFTPServer.OnUserLogin := UserLoginEventHandler;
FFTPServer.OnAfterUserLogin := AfterUserLoginEventHandler;
FFTPServer.OnChangeDirectory := ChangeDirectoryEventHandler;
FFTPServer.OnListDirectory := ListDirectoryEventHandler;
FFTPServer.OnMakeDirectory := MakeDirectoryEventHandler;
FFTPServer.OnRemoveDirectory := RemoveDirectoryEventHandler;
FFTPServer.OnDeleteFile := DeleteFileEventHandler;
FFTPServer.OnGetFileSize := GetFileSizeEventHandler;
FFTPServer.OnRenameFile := RenameFileEventHandler;
FFTPServer.OnRetrieveFile := RetrieveFileEventHandler;
FFTPServer.OnStoreFile := StoreFileEventHandler;
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.DeleteFileEventHandler(ASender: TIdFTPServerContext; const APathName: TIdFTPFileName);
var
WinCurrentDir, WinPathName, WinCompleteFileName: TFileName;
begin
try
WinCurrentDir := ChangeToWindowsPathDelimiter(ASender.CurrentDir);
WinPathName := ChangeToWindowsPathDelimiter(APathName);
WinCompleteFileName := ExpandWindowsPath(FLocalRootDirectory, WinCurrentDir, WinPathName);
if not FileExists(WinCompleteFileName) or not DeleteFile(PChar(WinCompleteFileName)) then
raise ExxxSpareFTPServerException.CreateFmt('%s: Failed to delete', [APathName]);
except
on E: Exception do
begin
DoError(APathName, E.Message);
raise;
end;
end;
end;
//------------------------------------------------------------------------------
destructor TxxxSpareFTPServer.Destroy();
begin
FreeAndNil(FFTPServer);
inherited Destroy();
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.DoError(const AFileName: TFileName; const AErrorMsg: string);
begin
try
if Assigned(FOnError) then
FOnError(Self, AFileName, AErrorMsg);
except
on E: Exception do
OutputDebugString(PChar('TxxxSpareFTPServer.DoError: ' + E.Message));
end;
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.DoPotentiallyParsableFile(const AFileName: TFileName);
var
fn: TFileName;
begin
try
if Assigned(FOnPotentiallyParsableFile) then
begin
fn := ExtractFileName(AFileName);
if SameText(ExtractFileExt(fn), '.dat') then
if StartsText('ACK_', fn) or StartsText('Cnt_', fn) or StartsText('Mqt_', fn) then
FOnPotentiallyParsableFile(Self);
end;
except
on E: Exception do
OutputDebugString(PChar('TxxxSpareFTPServer.DoPotentiallyParsableFile: ' + E.Message));
end;
end;
//------------------------------------------------------------------------------
class function TxxxSpareFTPServer.ExpandWindowsPath(const ARootDirectory, ACurrentDirectory, ADirectoryOrFileName: TFileName): TFileName;
function ExcludeFirstPathDelimiter(const S: string): string;
begin
if not IsPathDelimiter(Result, 1) then
Result := Copy(S, 2, Length(S) - 1)
else
Result := S;
end;
begin
// Chemin complet commençant par \
if StartsStr(PATH_DELIMITER_WIN, ADirectoryOrFileName) then
begin
Result := ExcludeTrailingPathDelimiter(ARootDirectory) + ADirectoryOrFileName;
end
else
begin
// Répertoire Parent
if StartsStr('..', ADirectoryOrFileName) then
Result := IncludeTrailingPathDelimiter(IncludeTrailingPathDelimiter(ARootDirectory) + ExcludeFirstPathDelimiter(ACurrentDirectory)) + ADirectoryOrFileName
// Répertoire Courant
else if StartsStr('.', ADirectoryOrFileName) then
Result := IncludeTrailingPathDelimiter(ARootDirectory) + ExcludeFirstPathDelimiter(ACurrentDirectory)
// Un fichier avec une extension
else if ContainsStr(ADirectoryOrFileName, '.') then
Result := IncludeTrailingPathDelimiter(IncludeTrailingPathDelimiter(ARootDirectory) + ExcludeFirstPathDelimiter(ACurrentDirectory)) + ADirectoryOrFileName
else
raise ExxxSpareFTPServerException.CreateFmt('%s: Failed to expand invalid name', [ADirectoryOrFileName]);
end;
end;
//------------------------------------------------------------------------------
function TxxxSpareFTPServer.ForceDirectories(const ADirectory: TIdFTPFileName): Boolean;
var
WinNewPath: TFileName;
begin
WinNewPath := ChangeToWindowsPathDelimiter(ADirectory);
Result := System.IOUtils.TFile.ForceDirectories(IncludeTrailingPathDelimiter(FLocalRootDirectory) + WinNewPath);
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.GetFileSizeEventHandler(ASender: TIdFTPServerContext; const AFilename: TIdFTPFileName; var VFileSize: Int64);
var
WinCurrentDir, WinFilename, WinCompleteFileName: TFileName;
sr: TSearchRec;
begin
try
WinFilename := ChangeToWindowsPathDelimiter(ASender.CurrentDir);
WinFilename := ChangeToWindowsPathDelimiter(AFilename);
WinCompleteFileName := ExpandWindowsPath(FLocalRootDirectory, WinCurrentDir, WinFilename);
if System.SysUtils.FindFirst(WinCompleteFileName, faNormal, sr) = 0 then
begin
VFileSize := sr.Size;
System.SysUtils.FindClose(sr);
end
else
raise ExxxSpareFTPServerException.CreateFmt('%s: Failed to retrieve the size of file', [AFilename]);
except
on E: Exception do
begin
DoError(AFilename, E.Message);
raise;
end;
end;
end;
//------------------------------------------------------------------------------
class function TxxxSpareFTPServer.GetLocalRootDirectory(): TFileName;
begin
Result := ExtractFilePath(ParamStr(0)) + 'SpareFTPServer';
end;
//------------------------------------------------------------------------------
class function TxxxSpareFTPServer.IsSpareHost(const AHost: string): Boolean;
begin
Result := SameText(AHost, 'localhost') or SameText(AHost, TAutomateLogistique.ModuleTool.GetWindowsComputer());
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.ListDirectoryEventHandler(ASender: TIdFTPServerContext; const APath: TIdFTPFileName; ADirectoryListing: TIdFTPListOutput; const ACmd, ASwitches: string);
procedure AddItemToListOutput(const AItemName: TFileName; AItemType: TIdDirItemType; AItemSize: Int64; AItemDate: TDateTime);
begin
with ADirectoryListing.Add() do
begin
ItemType := AItemType;
FileName := AItemName;
Size := AItemSize;
ModifiedDate := AItemDate;
// Simule les même droits que sur "ftp.xxxxxxxxxxx.com" pour l'utilisateur "xxx" !
OwnerName := ASender.Username;
GroupName := 'all';
if ItemType = ditDirectory then
begin
UnixOwnerPermissions := 'rwx';
UnixGroupPermissions := 'r-x';
UnixOtherPermissions := 'r-x';
end
else
begin
UnixOwnerPermissions := 'rw-';
UnixGroupPermissions := 'r--';
UnixOtherPermissions := 'r--';
end;
end;
end;
procedure EnumFiles(const ALocalDir: TFileName; const AFilter: TFileName);
var
sr: TSearchRec;
begin
if System.SysUtils.FindFirst(IncludeTrailingPathDelimiter(ALocalDir) + AFilter, faNormal, sr) = 0 then
begin
try
repeat
AddItemToListOutput(sr.Name, ditFile, sr.Size, sr.TimeStamp);
until FindNext(sr) <> 0;
finally
System.SysUtils.FindClose(sr);
end;
end;
end;
procedure EnumDirectories(const ALocalDir: TFileName);
var
Filter: string;
sr: TSearchRec;
begin
Filter := IncludeTrailingPathDelimiter(ALocalDir) + '*';
if System.SysUtils.FindFirst(Filter, faDirectory, sr) = 0 then
begin
try
repeat
if ((sr.Attr and faDirectory) = faDirectory) and (sr.Name <> '.') and (sr.Name <> '..') then
begin
AddItemToListOutput(sr.Name, ditDirectory, sr.Size, sr.TimeStamp);
end;
until System.SysUtils.FindNext(sr) <> 0;
finally
System.SysUtils.FindClose(sr);
end;
end;
end;
var
WinCurrentDir, WinNewDir, WinNewCompleteDir: TFileName;
ld: Integer;
Filter: TFileName;
begin
try
WinCurrentDir := ChangeToWindowsPathDelimiter(ASender.CurrentDir);
if ContainsStr(APath, '*') then
begin
if APath[Length(APath)] = PATH_DELIMITER_FTP then
WinNewDir := Copy(APath, 1, Length(APath) - 1)
else
WinNewDir := APath;
ld := LastDelimiter(PATH_DELIMITER_FTP, WinNewDir);
Filter := Copy(WinNewDir, ld + 1, MaxInt);
WinNewDir := ChangeToWindowsPathDelimiter(Copy(WinNewDir, 1, ld));
end
else
WinNewDir := ChangeToWindowsPathDelimiter(APath);
WinNewCompleteDir := ExpandWindowsPath(FLocalRootDirectory, WinCurrentDir, WinNewDir);
if DirectoryExists(WinNewCompleteDir) then
begin
if Filter = '' then
begin
// Les Fichiers !
// Toutes les extensions pour les voir via FileZilla même ce n'est ni des .dat et ni des .tmp
EnumFiles(WinNewCompleteDir, '*.*');
// Les Dossiers !
EnumDirectories(WinNewCompleteDir);
end
else
EnumFiles(WinNewCompleteDir, Filter);
end
else
raise ExxxSpareFTPServerException.CreateFmt('%s: Failed to retrieve the contents of the folder', [APath]);
except
on E: Exception do
begin
DoError(APath, E.Message);
raise;
end;
end;
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.MakeDirectoryEventHandler(ASender: TIdFTPServerContext; var VDirectory: TIdFTPFileName);
var
WinCurrentDir, WinNewDir, WinNewCompleteDir: TFileName;
begin
try
WinCurrentDir := ChangeToWindowsPathDelimiter(ASender.CurrentDir);
WinNewDir := ChangeToWindowsPathDelimiter(VDirectory);
WinNewCompleteDir := ExpandWindowsPath(FLocalRootDirectory, WinCurrentDir, WinNewDir);
if not System.IOUtils.TFile.ForceDirectories(WinNewCompleteDir) then
raise ExxxSpareFTPServerException.Create(Format('%s: Failed to make directory', [VDirectory]));
except
on E: Exception do
begin
DoError(VDirectory, E.Message);
raise;
end;
end;
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.Open();
begin
try
// Création de l'emplacement de stockage des fichiers
FLocalRootDirectory := GetLocalRootDirectory();
if System.IOUtils.TFile.ForceDirectories(FLocalRootDirectory) then
begin
// Ouverture (Ecoute des connexions)
if FFTPServer.Bindings.Count = 0 then
begin
with FFTPServer.Bindings.Add() do
begin
// Ajouter le Bindings en 0.0.0.0 refuse la Connexion en "[::1]:21..."
// Cela provoque sous FileZilla : Échec de la tentative de connexion avec "ECONNREFUSED - Connection refused by server", essai de l'adresse suivante.
// Cela utilise ensuite l'IP réelle ou l'IP 127.0.0.1 ce qui évite une erreur sur la commande EPSV : "501 Impossible de lier le socket. L'adresse et le port sont déjà en cours d'utilisation."
// D'ailleurs, cela change le choix de FileZilla dans ces commandes car il execute plutôt un PASV (Passive Mode) et non un EPSV (Extended Passive Mode)
// Si le serveur et le client sont sur le même poste, sans le Bindings, je ne peux ouvrir qu'un client Indy mais pas client FileZilla
// Sur FileZilla, cela se produit lors de la commande EPSV ce qui impacte la commande EPRT
// Sur InternetExplorer, cela ne se connecte pas du tout
// Si les clients (même plusieurs) sont lancés depuis un autre poste, il n'y a pas de problème !
// Avec un client Delphi Indy, je peux sans problème me connecter et envoyer un fichier même sans Bindings !
// Par précaution, je force une IP explicite
IP := '0.0.0.0';
Port := 21;
end;
end;
FFTPServer.Active := True;
end
else
raise Exception.Create('Dossier racine inaccessible');
except
on E: Exception do
raise ExxxSpareFTPServerException.CreateFmt('Impossible de démarrer le serveur FTP : %s', [E.Message]);
end;
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.RemoveDirectoryEventHandler(ASender: TIdFTPServerContext; var VDirectory: TIdFTPFileName);
var
WinCurrentDir, WinNewDir, WinNewCompleteDir: TFileName;
begin
try
WinCurrentDir := ChangeToWindowsPathDelimiter(ASender.CurrentDir);
WinNewDir := ChangeToWindowsPathDelimiter(VDirectory);
WinNewCompleteDir := ExpandWindowsPath(FLocalRootDirectory, WinCurrentDir, WinNewDir);
if DirectoryExists(WinNewCompleteDir) then
begin
if not RemoveDirectory(PChar(WinNewCompleteDir)) then
raise ExxxSpareFTPServerException.Create(Format('%s: Failed to remove directory', [VDirectory]));
end
else
raise ExxxSpareFTPServerException.Create(Format('%s: Failed to remove inexisting directory', [VDirectory]));
except
on E: Exception do
begin
DoError(VDirectory, E.Message);
raise;
end;
end;
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.RenameFileEventHandler(ASender: TIdFTPServerContext; const ARenameFromFile, ARenameToFile: TIdFTPFileName);
var
WinCurrentPath, WinRenameFromFile, WinCompletePathFrom, WinRenameToFile, WinCompletePathTo: TFileName;
begin
try
WinCurrentPath := ChangeToWindowsPathDelimiter(ASender.CurrentDir);
WinRenameFromFile := ChangeToWindowsPathDelimiter(ARenameFromFile);
WinCompletePathFrom := ExpandWindowsPath(FLocalRootDirectory, WinCurrentPath, WinRenameFromFile);
WinRenameToFile := ChangeToWindowsPathDelimiter(ARenameToFile);
WinCompletePathTo := ExpandWindowsPath(FLocalRootDirectory, WinCurrentPath, WinRenameToFile);
if MoveFileEx(PChar(WinCompletePathFrom), PChar(WinCompletePathTo), MOVEFILE_COPY_ALLOWED or MOVEFILE_REPLACE_EXISTING) then
DoPotentiallyParsableFile(WinCompletePathTo)
else
raise ExxxSpareFTPServerException.CreateFmt('%s: Failed to rename file to %s', [ARenameFromFile, ARenameToFile]);
except
on E: Exception do
begin
DoError(ARenameFromFile + ' -> ' + ARenameToFile, E.Message);
raise;
end;
end;
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.RetrieveFileEventHandler(ASender: TIdFTPServerContext; const AFileName: TIdFTPFileName; var VStream: TStream);
var
WinCurrentDir, WinFileName, WinCompleteFileName: TFileName;
begin
try
WinCurrentDir := ChangeToWindowsPathDelimiter(ASender.CurrentDir);
WinFileName := ChangeToWindowsPathDelimiter(AFileName);
WinCompleteFileName := ExpandWindowsPath(FLocalRootDirectory, WinCurrentDir, WinFileName);
if FileExists(WinCompleteFileName) then
VStream := TFileStream.create(WinCompleteFileName, fmOpenRead or fmShareDenyWrite) // Libéré par Indy !
else
raise ExxxSpareFTPServerException.CreateFmt('%s: Failed to retrieve file', [AFilename]);
except
on E: Exception do
begin
DoError(AFileName, E.Message);
raise;
end;
end;
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.StoreFileEventHandler(ASender: TIdFTPServerContext; const AFileName: TIdFTPFileName; AAppend: Boolean; var VStream: TStream);
var
WinCurrentDir, WinFileName, WinCompleteFileName: TFileName;
begin
try
WinCurrentDir := ChangeToWindowsPathDelimiter(ASender.CurrentDir);
WinFileName := ChangeToWindowsPathDelimiter(AFileName);
WinCompleteFileName := ExpandWindowsPath(FLocalRootDirectory, WinCurrentDir, WinFileName);
if DirectoryExists(ExtractFilePath(WinCompleteFileName)) then
begin
if AAppend then
begin
VStream := TParsableFileStream.Create(Self, WinCompleteFileName, fmOpenWrite or fmShareExclusive);
VStream.Seek(0, soFromEnd);
end
else
VStream := TParsableFileStream.Create(Self, WinCompleteFileName, fmCreate or fmShareExclusive);
end
else
raise ExxxSpareFTPServerException.CreateFmt('%s: Failed to store file', [AFilename]);
except
on E: Exception do
begin
DoError(AFileName, E.Message);
raise;
end;
end;
end;
//------------------------------------------------------------------------------
procedure TxxxSpareFTPServer.UserLoginEventHandler(ASender: TIdFTPServerContext; const AUsername, APassword: string; var AAuthenticated: Boolean);
begin
AAuthenticated := SameText(AUsername, '???') and SameStr(APassword, '???'); // un petit travail ici
end; |
Tethering ou Client/Serveur
A priori c'est bon. Poste A envoi le répertoire de destination à B. Puis on transfère les fichiers binaires propriétaires dont je connais la structure. Je devrais pouvoir les passer en stream.
Répondre avec citation
Envoyé par SergioMaster
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