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Comparing ibx/trunk/fbintf/client/FBAttachment.pas (file contents):
Revision 109 by tony, Thu Jan 18 14:37:48 2018 UTC vs.
Revision 291 by tony, Fri Apr 17 10:26:08 2020 UTC

# Line 32 | Line 32 | unit FBAttachment;
32   {$IFDEF FPC}
33   {$mode delphi}
34   {$interfaces COM}
35 + {$define HASREQEX}
36   {$ENDIF}
37  
38   interface
39  
40   uses
41 <  Classes, SysUtils, {$IFDEF WINDOWS} windows, {$ENDIF} IB,  FBParamBlock, FBActivityMonitor;
41 >  Classes, SysUtils, {$IFDEF WINDOWS} windows, {$ENDIF} IB,  FBParamBlock,
42 >  FBActivityMonitor, FBClientAPI;
43  
44   type
45    TCharsetMap = record
# Line 54 | Line 56 | type
56    private
57      FDPB: IDPB;
58      FFirebirdAPI: IFirebirdAPI;
59 +    FODSMajorVersion: integer;
60 +    FODSMinorVersion: integer;
61      FUserCharSetMap: array of TCharSetMap;
62 +    FSecDatabase: AnsiString;
63    protected
64      FDatabaseName: AnsiString;
65      FRaiseExceptionOnConnectError: boolean;
# Line 62 | Line 67 | type
67      FHasDefaultCharSet: boolean;
68      FCharSetID: integer;
69      FCodePage: TSystemCodePage;
70 <    constructor Create(DatabaseName: AnsiString; DPB: IDPB;
70 >    FRemoteProtocol: AnsiString;
71 >    FAuthMethod: AnsiString;
72 >    constructor Create(api: TFBClientAPI; DatabaseName: AnsiString; DPB: IDPB;
73        RaiseExceptionOnConnectError: boolean);
74      procedure CheckHandle; virtual; abstract;
75      function GenerateCreateDatabaseSQL(DatabaseName: AnsiString; aDPB: IDPB): AnsiString;
76 +    procedure GetODSAndConnectionInfo;
77 +    function GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation; virtual; abstract;
78 +    function IsConnected: boolean; virtual; abstract;
79      procedure EndAllTransactions;
80 +    procedure DPBFromCreateSQL(CreateSQL: AnsiString);
81      procedure SetParameters(SQLParams: ISQLParams; params: array of const);
82    public
83      destructor Destroy; override;
84 +    function getFirebirdAPI: IFirebirdAPI;
85      function getDPB: IDPB;
86      function AllocateBPB: IBPB;
87 +    function AllocateDIRB: IDIRB;
88      function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction; overload; virtual; abstract;
89      function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction; overload; virtual; abstract;
90      procedure Disconnect(Force: boolean=false); virtual; abstract;
# Line 101 | Line 114 | type
114      function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IStatement; overload; virtual; abstract;
115      function Prepare(transaction: ITransaction; sql: AnsiString): IStatement; overload;
116      function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
117 <                       aSQLDialect: integer; GenerateParamNames: boolean=false): IStatement; overload; virtual; abstract;
117 >                       aSQLDialect: integer; GenerateParamNames: boolean=false;
118 >                       CaseSensitiveParams: boolean = false): IStatement; overload; virtual; abstract;
119      function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
120 <                       GenerateParamNames: boolean=false): IStatement; overload;
120 >                       GenerateParamNames: boolean=false;
121 >                       CaseSensitiveParams: boolean = false): IStatement; overload;
122      function GetEventHandler(Events: TStrings): IEvents; overload; virtual; abstract;
123      function GetEventHandler(Event: AnsiString): IEvents; overload;
124  
125      function GetSQLDialect: integer;
126 +    function CreateBlob(transaction: ITransaction; RelationName, ColumnName: AnsiString; BPB: IBPB=nil): IBlob; overload;
127 +    function CreateBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BPB: IBPB=nil): IBlob; overload; virtual; abstract;
128      function OpenBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload; virtual; abstract;
129 +    function OpenBlob(transaction: ITransaction; RelationName, ColumnName: AnsiString; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload;
130      function OpenBlob(transaction: ITransaction; Field: ISQLData; BPB: IBPB=nil): IBlob; overload;
131 +    function CreateArray(transaction: ITransaction; RelationName, ColumnName: AnsiString
132 +      ): IArray; overload;
133 +    function CreateArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData): IArray; overload; virtual; abstract;
134 +    function OpenArray(transaction: ITransaction; RelationName, ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray; overload;
135 +    function OpenArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData; ArrayID: TISC_QUAD): IArray; overload; virtual; abstract;
136      property SQLDialect: integer read FSQLDialect;
137      property DPB: IDPB read FDPB;
138   public
139 <    {Character Sets}
139 >  function GetDBInformation(Requests: array of byte): IDBInformation; overload;
140 >  function GetDBInformation(Request: byte): IDBInformation; overload;
141 >  function GetDBInformation(Requests: IDIRB): IDBInformation; overload;
142 >  function GetConnectString: AnsiString;
143 >  function GetRemoteProtocol: AnsiString;
144 >  function GetAuthenticationMethod: AnsiString;
145 >  function GetSecurityDatabase: AnsiString;
146 >  function GetODSMajorVersion: integer;
147 >  function GetODSMinorVersion: integer;
148 >  {Character Sets}
149    function HasDefaultCharSet: boolean;
150    function GetDefaultCharSetID: integer;
151    function GetCharsetName(CharSetID: integer): AnsiString;
# Line 123 | Line 155 | public
155    function CharSetWidth(CharSetID: integer; var Width: integer): boolean;
156    procedure RegisterCharSet(CharSetName: AnsiString; CodePage: TSystemCodePage;
157      AllowReverseLookup:boolean; out CharSetID: integer);
158 +  function GetBlobMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IBlobMetaData; virtual; abstract;
159 +  function GetArrayMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IArrayMetaData; virtual; abstract;
160    property CharSetID: integer read FCharSetID;
161    property CodePage: TSystemCodePage read FCodePage;
162    end;
163  
164   implementation
165  
166 < uses FBMessages, FBTransaction;
166 > uses FBMessages, IBUtils, FBTransaction {$IFDEF HASREQEX}, RegExpr{$ENDIF};
167  
168   const
169    CharSetMap: array [0..69] of TCharsetMap = (
# Line 210 | Line 244 | const
244  
245   { TFBAttachment }
246  
247 < constructor TFBAttachment.Create(DatabaseName: AnsiString; DPB: IDPB;
248 <  RaiseExceptionOnConnectError: boolean);
247 > procedure TFBAttachment.GetODSAndConnectionInfo;
248 > var DBInfo: IDBInformation;
249 >    i: integer;
250 >    Stmt: IStatement;
251 >    ResultSet: IResultSet;
252 >    Param: IDPBItem;
253 > begin
254 >  if not IsConnected then Exit;
255 >  DBInfo := GetDBInformation([isc_info_db_id,isc_info_ods_version,isc_info_ods_minor_version,
256 >                               isc_info_db_SQL_Dialect]);
257 >  for i := 0 to DBInfo.GetCount - 1 do
258 >    with DBInfo[i] do
259 >      case getItemType of
260 >      isc_info_ods_minor_version:
261 >        FODSMinorVersion := getAsInteger;
262 >      isc_info_ods_version:
263 >        FODSMajorVersion := getAsInteger;
264 >      isc_info_db_SQL_Dialect:
265 >        FSQLDialect := getAsInteger;
266 >      end;
267 >
268 >  FCharSetID := 0;
269 >  FRemoteProtocol := '';
270 >  FAuthMethod := 'Legacy_Auth';
271 >  FSecDatabase := 'Default';
272 >  if FODSMajorVersion > 11 then
273 >  begin
274 >    Stmt := Prepare(StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit),
275 >                    'Select MON$CHARACTER_SET_ID, MON$REMOTE_PROTOCOL, MON$AUTH_METHOD, MON$SEC_DATABASE From MON$ATTACHMENTS, MON$DATABASE '+
276 >                    'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION');
277 >    ResultSet := Stmt.OpenCursor;
278 >    if ResultSet.FetchNext then
279 >    begin
280 >      FCharSetID := ResultSet[0].AsInteger;
281 >      FRemoteProtocol := Trim(ResultSet[1].AsString);
282 >      FAuthMethod := Trim(ResultSet[2].AsString);
283 >      FSecDatabase := Trim(ResultSet[3].AsString);
284 >    end
285 >  end
286 >  else
287 >  if (FODSMajorVersion = 11) and (FODSMinorVersion >= 1) then
288 >  begin
289 >    Stmt := Prepare(StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit),
290 >                    'Select MON$CHARACTER_SET_ID, MON$REMOTE_PROTOCOL From MON$ATTACHMENTS '+
291 >                    'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION');
292 >    ResultSet := Stmt.OpenCursor;
293 >    if ResultSet.FetchNext then
294 >    begin
295 >      FCharSetID := ResultSet[0].AsInteger;
296 >      FRemoteProtocol := Trim(ResultSet[1].AsString);
297 >    end
298 >  end
299 >  else
300 >  if DPB <> nil then
301 >  begin
302 >    Param :=  DPB.Find(isc_dpb_lc_ctype);
303 >    if (Param = nil) or not CharSetName2CharSetID(Param.AsString,FCharSetID) then
304 >      FCharSetID := 0;
305 >    case GetProtocol(FDatabaseName) of
306 >    TCP:       FRemoteProtocol := 'TCPv4';
307 >    Local:     FRemoteProtocol := '';
308 >    NamedPipe: FRemoteProtocol := 'Netbui';
309 >    SPX:       FRemoteProtocol := 'SPX'
310 >    end;
311 >  end;
312 >  FHasDefaultCharSet := CharSetID2CodePage(FCharSetID,FCodePage) and (FCharSetID > 1);
313 > end;
314 >
315 > constructor TFBAttachment.Create(api: TFBClientAPI; DatabaseName: AnsiString;
316 >  DPB: IDPB; RaiseExceptionOnConnectError: boolean);
317   begin
318    inherited Create;
319 <  FFirebirdAPI := FirebirdAPI; {Keep reference to interface}
319 >  FFirebirdAPI := api.GetAPI; {Keep reference to interface}
320    FSQLDialect := 3;
321    FDatabaseName := DatabaseName;
322    FDPB := DPB;
323    SetLength(FUserCharSetMap,0);
324    FRaiseExceptionOnConnectError := RaiseExceptionOnConnectError;
325 +  FODSMajorVersion := 0;
326 +  FODSMinorVersion := 0;
327   end;
328  
329   function TFBAttachment.GenerateCreateDatabaseSQL(DatabaseName: AnsiString;  aDPB: IDPB): AnsiString;
# Line 266 | Line 370 | begin
370    end;
371   end;
372  
373 + {$IFDEF HASREQEX}
374 + procedure TFBAttachment.DPBFromCreateSQL(CreateSQL: AnsiString);
375 + var RegexObj: TRegExpr;
376 + begin
377 +  FDPB := FFirebirdAPI.AllocateDPB;
378 +  RegexObj := TRegExpr.Create;
379 +  try
380 +    {extact database file spec}
381 +    RegexObj.ModifierG := false; {turn off greedy matches}
382 +    RegexObj.ModifierI := true; {case insensitive match}
383 +    RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +''.*'' +USER +''(.+)'' PASSWORD +''(.+)''';
384 +    if RegexObj.Exec(CreateSQL) then
385 +    begin
386 +      DPB.Add(isc_dpb_user_name).AsString := system.copy(CreateSQL,RegexObj.MatchPos[2],RegexObj.MatchLen[2]);
387 +      DPB.Add(isc_dpb_password).AsString := system.copy(CreateSQL,RegexObj.MatchPos[3],RegexObj.MatchLen[3]);
388 +    end
389 +    else
390 +    begin
391 +      RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +(''.*'') +USER +''(.+)''';
392 +      if RegexObj.Exec(CreateSQL) then
393 +        DPB.Add(isc_dpb_user_name).AsString := system.copy(CreateSQL,RegexObj.MatchPos[2],RegexObj.MatchLen[2]);
394 +    end;
395 +  finally
396 +    RegexObj.Free;
397 +  end;
398 +  if FCharSetID > 0 then
399 +    DPB.Add(isc_dpb_lc_ctype).AsString := GetCharSetName(FCharSetID);
400 +  DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(FSQLDialect);
401 + end;
402 + {$ELSE}
403 + procedure TFBAttachment.DPBFromCreateSQL(CreateSQL: AnsiString);
404 + begin
405 +  FDPB := FFirebirdAPI.AllocateDPB;
406 +  if FCharSetID > 0 then
407 +    DPB.Add(isc_dpb_lc_ctype).AsString := GetCharSetName(FCharSetID);
408 +  DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(FSQLDialect);
409 + end;
410 + {$ENDIF}
411 +
412   procedure TFBAttachment.SetParameters(SQLParams: ISQLParams;
413    params: array of const);
414   var i: integer;
# Line 320 | Line 463 | begin
463    inherited Destroy;
464   end;
465  
466 + function TFBAttachment.getFirebirdAPI: IFirebirdAPI;
467 + begin
468 +  Result := FFirebirdAPI;
469 + end;
470 +
471   function TFBAttachment.getDPB: IDPB;
472   begin
473    Result := FDPB;
# Line 327 | Line 475 | end;
475  
476   function TFBAttachment.AllocateBPB: IBPB;
477   begin
478 <  Result := TBPB.Create;
478 >  Result := TBPB.Create(FFirebirdAPI as TFBClientAPI);
479 > end;
480 >
481 > function TFBAttachment.AllocateDIRB: IDIRB;
482 > begin
483 >  Result := TDIRB.Create(FFirebirdAPI as TFBClientAPI);
484   end;
485  
486   procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString;
# Line 349 | Line 502 | end;
502   function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString;
503    SQLDialect: integer; params: array of const): IResults;
504   begin
505 <  Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,FSQLDialect,params);
505 >  Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,SQLDialect,params);
506   end;
507  
508   function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString;
# Line 450 | Line 603 | begin
603   end;
604  
605   function TFBAttachment.PrepareWithNamedParameters(transaction: ITransaction;
606 <  sql: AnsiString; GenerateParamNames: boolean): IStatement;
606 >  sql: AnsiString; GenerateParamNames: boolean; CaseSensitiveParams: boolean): IStatement;
607   begin
608 <  Result := PrepareWithNamedParameters(transaction,sql,FSQLDialect,GenerateParamNames);
608 >  Result := PrepareWithNamedParameters(transaction,sql,FSQLDialect,GenerateParamNames,CaseSensitiveParams);
609   end;
610  
611   function TFBAttachment.GetEventHandler(Event: AnsiString): IEvents;
# Line 472 | Line 625 | begin
625    Result := FSQLDialect;
626   end;
627  
628 + function TFBAttachment.CreateBlob(transaction: ITransaction; RelationName,
629 +  ColumnName: AnsiString; BPB: IBPB): IBlob;
630 + begin
631 +  Result := CreateBlob(transaction,GetBlobMetaData(Transaction,RelationName,ColumnName),BPB);
632 + end;
633 +
634 + function TFBAttachment.OpenBlob(transaction: ITransaction; RelationName,
635 +  ColumnName: AnsiString; BlobID: TISC_QUAD; BPB: IBPB): IBlob;
636 + begin
637 +  Result := OpenBlob(Transaction,
638 +                GetBlobMetaData(Transaction,RelationName,ColumnName),
639 +                BlobID,BPB);
640 + end;
641 +
642   function TFBAttachment.OpenBlob(transaction: ITransaction; Field: ISQLData;
643    BPB: IBPB): IBlob;
644   begin
645    Result := OpenBlob(Transaction,Field.GetBlobMetadata, Field.AsQuad,BPB);
646   end;
647  
648 + function TFBAttachment.CreateArray(transaction: ITransaction; RelationName,
649 +  ColumnName: AnsiString): IArray;
650 + begin
651 +  Result := CreateArray(transaction,GetArrayMetaData(transaction,RelationName,ColumnName));
652 + end;
653 +
654 + function TFBAttachment.OpenArray(transaction: ITransaction; RelationName,
655 +  ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray;
656 + begin
657 +  Result := OpenArray(transaction,
658 +    GetArrayMetaData(transaction,RelationName,ColumnName),ArrayID);
659 + end;
660 +
661 + function TFBAttachment.GetDBInformation(Requests: array of byte
662 +  ): IDBInformation;
663 + var ReqBuffer: PByte;
664 +    i: integer;
665 + begin
666 +  CheckHandle;
667 +  if Length(Requests) = 1 then
668 +    Result := GetDBInformation(Requests[0])
669 +  else
670 +  begin
671 +    GetMem(ReqBuffer,Length(Requests));
672 +    try
673 +      for i := 0 to Length(Requests) - 1 do
674 +        ReqBuffer[i] := Requests[i];
675 +
676 +      Result := GetDBInfo(ReqBuffer,Length(Requests));
677 +
678 +    finally
679 +      FreeMem(ReqBuffer);
680 +    end;
681 +  end;
682 + end;
683 +
684 + function TFBAttachment.GetDBInformation(Request: byte): IDBInformation;
685 + begin
686 +  CheckHandle;
687 +  Result := GetDBInfo(@Request,1);
688 + end;
689 +
690 + function TFBAttachment.GetDBInformation(Requests: IDIRB): IDBInformation;
691 + begin
692 +  CheckHandle;
693 +  with Requests as TDIRB do
694 +    Result := GetDBInfo(getBuffer,getDataLength);
695 + end;
696 +
697 + function TFBAttachment.GetConnectString: AnsiString;
698 + begin
699 +  Result := FDatabaseName;
700 + end;
701 +
702 + function TFBAttachment.GetRemoteProtocol: AnsiString;
703 + begin
704 +  Result := FRemoteProtocol;
705 + end;
706 +
707 + function TFBAttachment.GetAuthenticationMethod: AnsiString;
708 + begin
709 +  Result := FAuthMethod;
710 + end;
711 +
712 + function TFBAttachment.GetSecurityDatabase: AnsiString;
713 + begin
714 +  Result := FSecDatabase;
715 + end;
716 +
717 + function TFBAttachment.GetODSMajorVersion: integer;
718 + begin
719 +  Result := FODSMajorVersion;
720 + end;
721 +
722 + function TFBAttachment.GetODSMinorVersion: integer;
723 + begin
724 +  Result := FODSMinorVersion;
725 + end;
726 +
727   function TFBAttachment.HasDefaultCharSet: boolean;
728   begin
729    Result := FHasDefaultCharSet
# Line 557 | Line 803 | var i: integer;
803   begin
804    Result := false;
805    for i := Low(CharSetMap) to High(CharSetMap) do
806 <    if AnsiCompareStr(CharSetMap[i].CharSetName, CharSetName) = 0 then
806 >    if AnsiCompareText(CharSetMap[i].CharSetName, CharSetName) = 0 then
807      begin
808        CharSetID := CharSetMap[i].CharSetID;
809        Result := true;
# Line 565 | Line 811 | begin
811      end;
812  
813      for i := 0 to Length(FUserCharSetMap) - 1 do
814 <      if AnsiCompareStr(FUserCharSetMap[i].CharSetName, CharSetName) = 0 then
814 >      if AnsiCompareText(FUserCharSetMap[i].CharSetName, CharSetName) = 0 then
815        begin
816          CharSetID := FUserCharSetMap[i].CharSetID;
817          Result := true;

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