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root/public/ibx/branches/journaling/fbintf/client/FBAttachment.pas
Revision: 263
Committed: Thu Dec 6 15:55:01 2018 UTC (6 years ago) by tony
Content type: text/x-pascal
Original Path: ibx/trunk/fbintf/client/FBAttachment.pas
File size: 32635 byte(s)
Log Message: 
Release 2.3.2 committed

File Contents

# User Rev Content
1 tony 45 (*
2     * Firebird Interface (fbintf). The fbintf components provide a set of
3     * Pascal language bindings for the Firebird API.
4     *
5     * The contents of this file are subject to the Initial Developer's
6     * Public License Version 1.0 (the "License"); you may not use this
7     * file except in compliance with the License. You may obtain a copy
8     * of the License here:
9     *
10     * http://www.firebirdsql.org/index.php?op=doc&id=idpl
11     *
12     * Software distributed under the License is distributed on an "AS
13     * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
14     * implied. See the License for the specific language governing rights
15     * and limitations under the License.
16     *
17     * The Initial Developer of the Original Code is Tony Whyman.
18     *
19     * The Original Code is (C) 2016 Tony Whyman, MWA Software
20     * (http://www.mwasoftware.co.uk).
21     *
22     * All Rights Reserved.
23     *
24     * Contributor(s): ______________________________________.
25     *
26     *)
27     unit FBAttachment;
28 tony 56 {$IFDEF MSWINDOWS}
29     {$DEFINE WINDOWS}
30     {$ENDIF}
31 tony 45
32     {$IFDEF FPC}
33 tony 56 {$mode delphi}
34 tony 45 {$interfaces COM}
35 tony 118 {$define HASREQEX}
36 tony 45 {$ENDIF}
37    
38     interface
39    
40     uses
41 tony 263 Classes, SysUtils, {$IFDEF WINDOWS} windows, {$ENDIF} IB, FBParamBlock,
42     FBActivityMonitor, FBClientAPI;
43 tony 45
44     type
45 tony 60 TCharsetMap = record
46     CharsetID: integer;
47     CharSetName: AnsiString;
48     CharSetWidth: integer;
49     CodePage: TSystemCodePage;
50     AllowReverseLookup: boolean; {used to ensure that lookup of CP_UTF* does not return UNICODE_FSS}
51     end;
52 tony 45
53     { TFBAttachment }
54    
55     TFBAttachment = class(TActivityHandler)
56     private
57     FDPB: IDPB;
58     FFirebirdAPI: IFirebirdAPI;
59 tony 117 FODSMajorVersion: integer;
60     FODSMinorVersion: integer;
61 tony 60 FUserCharSetMap: array of TCharSetMap;
62 tony 209 FSecDatabase: AnsiString;
63 tony 45 protected
64 tony 56 FDatabaseName: AnsiString;
65 tony 45 FRaiseExceptionOnConnectError: boolean;
66     FSQLDialect: integer;
67     FHasDefaultCharSet: boolean;
68     FCharSetID: integer;
69     FCodePage: TSystemCodePage;
70 tony 117 FRemoteProtocol: AnsiString;
71 tony 143 FAuthMethod: AnsiString;
72 tony 263 constructor Create(api: TFBClientAPI; DatabaseName: AnsiString; DPB: IDPB;
73 tony 45 RaiseExceptionOnConnectError: boolean);
74     procedure CheckHandle; virtual; abstract;
75 tony 56 function GenerateCreateDatabaseSQL(DatabaseName: AnsiString; aDPB: IDPB): AnsiString;
76 tony 117 procedure GetODSAndConnectionInfo;
77 tony 143 function GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation; virtual; abstract;
78 tony 117 function IsConnected: boolean; virtual; abstract;
79 tony 45 procedure EndAllTransactions;
80 tony 117 procedure DPBFromCreateSQL(CreateSQL: AnsiString);
81 tony 45 procedure SetParameters(SQLParams: ISQLParams; params: array of const);
82     public
83     destructor Destroy; override;
84 tony 263 function getFirebirdAPI: IFirebirdAPI;
85 tony 45 function getDPB: IDPB;
86     function AllocateBPB: IBPB;
87 tony 143 function AllocateDIRB: IDIRB;
88 tony 45 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;
91 tony 56 procedure ExecImmediate(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer); overload; virtual; abstract;
92     procedure ExecImmediate(TPB: array of byte; sql: AnsiString; aSQLDialect: integer); overload;
93     procedure ExecImmediate(transaction: ITransaction; sql: AnsiString); overload;
94     procedure ExecImmediate(TPB: array of byte; sql: AnsiString); overload;
95     function ExecuteSQL(TPB: array of byte; sql: AnsiString; SQLDialect: integer; params: array of const): IResults; overload;
96     function ExecuteSQL(transaction: ITransaction; sql: AnsiString; SQLDialect: integer; params: array of const): IResults; overload;
97     function ExecuteSQL(TPB: array of byte; sql: AnsiString; params: array of const): IResults; overload;
98     function ExecuteSQL(transaction: ITransaction; sql: AnsiString; params: array of const): IResults; overload;
99     function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IResultSet; overload;
100     function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
101 tony 45 params: array of const): IResultSet; overload;
102 tony 56 function OpenCursor(transaction: ITransaction; sql: AnsiString): IResultSet; overload;
103     function OpenCursor(transaction: ITransaction; sql: AnsiString;
104 tony 45 params: array of const): IResultSet; overload;
105 tony 56 function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IResultSet; overload;
106     function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
107 tony 45 params: array of const): IResultSet; overload;
108 tony 56 function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString): IResultSet; overload;
109     function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString;
110 tony 45 params: array of const): IResultSet; overload;
111 tony 56 function OpenCursorAtStart(sql: AnsiString): IResultSet; overload;
112     function OpenCursorAtStart(sql: AnsiString;
113 tony 45 params: array of const): IResultSet; overload;
114 tony 56 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 tony 45 aSQLDialect: integer; GenerateParamNames: boolean=false): IStatement; overload; virtual; abstract;
118 tony 56 function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
119 tony 45 GenerateParamNames: boolean=false): IStatement; overload;
120     function GetEventHandler(Events: TStrings): IEvents; overload; virtual; abstract;
121 tony 56 function GetEventHandler(Event: AnsiString): IEvents; overload;
122 tony 45
123     function GetSQLDialect: integer;
124 tony 56 function OpenBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload; virtual; abstract;
125 tony 45 function OpenBlob(transaction: ITransaction; Field: ISQLData; BPB: IBPB=nil): IBlob; overload;
126     property SQLDialect: integer read FSQLDialect;
127     property DPB: IDPB read FDPB;
128 tony 60 public
129 tony 143 function GetDBInformation(Requests: array of byte): IDBInformation; overload;
130     function GetDBInformation(Request: byte): IDBInformation; overload;
131     function GetDBInformation(Requests: IDIRB): IDBInformation; overload;
132 tony 117 function GetConnectString: AnsiString;
133     function GetRemoteProtocol: AnsiString;
134 tony 143 function GetAuthenticationMethod: AnsiString;
135 tony 209 function GetSecurityDatabase: AnsiString;
136 tony 117 function GetODSMajorVersion: integer;
137     function GetODSMinorVersion: integer;
138     {Character Sets}
139 tony 109 function HasDefaultCharSet: boolean;
140     function GetDefaultCharSetID: integer;
141 tony 60 function GetCharsetName(CharSetID: integer): AnsiString;
142     function CharSetID2CodePage(CharSetID: integer; var CodePage: TSystemCodePage): boolean;
143     function CodePage2CharSetID(CodePage: TSystemCodePage; var CharSetID: integer): boolean;
144     function CharSetName2CharSetID(CharSetName: AnsiString; var CharSetID: integer): boolean;
145     function CharSetWidth(CharSetID: integer; var Width: integer): boolean;
146     procedure RegisterCharSet(CharSetName: AnsiString; CodePage: TSystemCodePage;
147     AllowReverseLookup:boolean; out CharSetID: integer);
148     property CharSetID: integer read FCharSetID;
149     property CodePage: TSystemCodePage read FCodePage;
150 tony 45 end;
151    
152     implementation
153    
154 tony 143 uses FBMessages, IBUtils, FBTransaction {$IFDEF HASREQEX}, RegExpr{$ENDIF};
155 tony 45
156 tony 60 const
157     CharSetMap: array [0..69] of TCharsetMap = (
158     (CharsetID: 0; CharSetName: 'NONE'; CharSetWidth: 1; CodePage: CP_ACP; AllowReverseLookup: true),
159     (CharsetID: 1; CharSetName: 'OCTETS'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true),
160     (CharsetID: 2; CharSetName: 'ASCII'; CharSetWidth: 1; CodePage: CP_ASCII; AllowReverseLookup: true),
161     (CharsetID: 3; CharSetName: 'UNICODE_FSS'; CharSetWidth: 3; CodePage: CP_UTF8; AllowReverseLookup: false),
162     (CharsetID: 4; CharSetName: 'UTF8'; CharSetWidth: 4; CodePage: CP_UTF8; AllowReverseLookup: true),
163     (CharsetID: 5; CharSetName: 'SJIS_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true),
164     (CharsetID: 6; CharSetName: 'EUCJ_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true),
165     (CharsetID: 7; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
166     (CharsetID: 8; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
167     (CharsetID: 9; CharSetName: 'DOS737'; CharSetWidth: 1; CodePage: 737; AllowReverseLookup: true),
168     (CharsetID: 10; CharSetName: 'DOS437'; CharSetWidth: 1; CodePage: 437; AllowReverseLookup: true),
169     (CharsetID: 11; CharSetName: 'DOS850'; CharSetWidth: 1; CodePage: 850; AllowReverseLookup: true),
170     (CharsetID: 12; CharSetName: 'DOS865'; CharSetWidth: 1; CodePage: 865; AllowReverseLookup: true),
171     (CharsetID: 13; CharSetName: 'DOS860'; CharSetWidth: 1; CodePage: 860; AllowReverseLookup: true),
172     (CharsetID: 14; CharSetName: 'DOS863'; CharSetWidth: 1; CodePage: 863; AllowReverseLookup: true),
173     (CharsetID: 15; CharSetName: 'DOS775'; CharSetWidth: 1; CodePage: 775; AllowReverseLookup: true),
174     (CharsetID: 16; CharSetName: 'DOS858'; CharSetWidth: 1; CodePage: 858; AllowReverseLookup: true),
175     (CharsetID: 17; CharSetName: 'DOS862'; CharSetWidth: 1; CodePage: 862; AllowReverseLookup: true),
176     (CharsetID: 18; CharSetName: 'DOS864'; CharSetWidth: 1; CodePage: 864; AllowReverseLookup: true),
177     (CharsetID: 19; CharSetName: 'NEXT'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true),
178     (CharsetID: 20; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
179     (CharsetID: 21; CharSetName: 'ISO8859_1'; CharSetWidth: 1; CodePage: 28591; AllowReverseLookup: true),
180     (CharsetID: 22; CharSetName: 'ISO8859_2'; CharSetWidth: 1; CodePage: 28592; AllowReverseLookup: true),
181     (CharsetID: 23; CharSetName: 'ISO8859_3'; CharSetWidth: 1; CodePage: 28593; AllowReverseLookup: true),
182     (CharsetID: 24; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
183     (CharsetID: 25; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
184     (CharsetID: 26; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
185     (CharsetID: 27; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
186     (CharsetID: 28; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
187     (CharsetID: 29; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
188     (CharsetID: 30; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
189     (CharsetID: 31; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
190     (CharsetID: 32; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
191     (CharsetID: 33; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
192     (CharsetID: 34; CharSetName: 'ISO8859_4'; CharSetWidth: 1; CodePage: 28594; AllowReverseLookup: true),
193     (CharsetID: 35; CharSetName: 'ISO8859_5'; CharSetWidth: 1; CodePage: 28595; AllowReverseLookup: true),
194     (CharsetID: 36; CharSetName: 'ISO8859_6'; CharSetWidth: 1; CodePage: 28596; AllowReverseLookup: true),
195     (CharsetID: 37; CharSetName: 'ISO8859_7'; CharSetWidth: 1; CodePage: 28597; AllowReverseLookup: true),
196     (CharsetID: 38; CharSetName: 'ISO8859_8'; CharSetWidth: 1; CodePage: 28598; AllowReverseLookup: true),
197     (CharsetID: 39; CharSetName: 'ISO8859_9'; CharSetWidth: 1; CodePage: 28599; AllowReverseLookup: true),
198     (CharsetID: 40; CharSetName: 'ISO8859_13'; CharSetWidth: 1; CodePage: 28603; AllowReverseLookup: true),
199     (CharsetID: 41; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
200     (CharsetID: 42; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
201     (CharsetID: 43; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
202     (CharsetID: 44; CharSetName: 'KSC_5601'; CharSetWidth: 2; CodePage: 949; AllowReverseLookup: true),
203     (CharsetID: 45; CharSetName: 'DOS852'; CharSetWidth: 1; CodePage: 852; AllowReverseLookup: true),
204     (CharsetID: 46; CharSetName: 'DOS857'; CharSetWidth: 1; CodePage: 857; AllowReverseLookup: true),
205     (CharsetID: 47; CharSetName: 'DOS861'; CharSetWidth: 1; CodePage: 861; AllowReverseLookup: true),
206     (CharsetID: 48; CharSetName: 'DOS866'; CharSetWidth: 1; CodePage: 866; AllowReverseLookup: true),
207     (CharsetID: 49; CharSetName: 'DOS869'; CharSetWidth: 1; CodePage: 869; AllowReverseLookup: true),
208     (CharsetID: 50; CharSetName: 'CYRL'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true),
209     (CharsetID: 51; CharSetName: 'WIN1250'; CharSetWidth: 1; CodePage: 1250; AllowReverseLookup: true),
210     (CharsetID: 52; CharSetName: 'WIN1251'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true),
211     (CharsetID: 53; CharSetName: 'WIN1252'; CharSetWidth: 1; CodePage: 1252; AllowReverseLookup: true),
212     (CharsetID: 54; CharSetName: 'WIN1253'; CharSetWidth: 1; CodePage: 1253; AllowReverseLookup: true),
213     (CharsetID: 55; CharSetName: 'WIN1254'; CharSetWidth: 1; CodePage: 1254; AllowReverseLookup: true),
214     (CharsetID: 56; CharSetName: 'BIG_5'; CharSetWidth: 2; CodePage: 950; AllowReverseLookup: true),
215     (CharsetID: 57; CharSetName: 'GB_2312'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true),
216     (CharsetID: 58; CharSetName: 'WIN1255'; CharSetWidth: 1; CodePage: 1255; AllowReverseLookup: true),
217     (CharsetID: 59; CharSetName: 'WIN1256'; CharSetWidth: 1; CodePage: 1256; AllowReverseLookup: true),
218     (CharsetID: 60; CharSetName: 'WIN1257'; CharSetWidth: 1; CodePage: 1257; AllowReverseLookup: true),
219     (CharsetID: 61; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
220     (CharsetID: 62; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
221     (CharsetID: 63; CharSetName: 'KOI8R'; CharSetWidth: 1; CodePage: 20866; AllowReverseLookup: true),
222     (CharsetID: 64; CharSetName: 'KOI8U'; CharSetWidth: 1; CodePage: 21866; AllowReverseLookup: true),
223     (CharsetID: 65; CharSetName: 'WIN1258'; CharSetWidth: 1; CodePage: 1258; AllowReverseLookup: true),
224     (CharsetID: 66; CharSetName: 'TIS620'; CharSetWidth: 1; CodePage: 874; AllowReverseLookup: true),
225     (CharsetID: 67; CharSetName: 'GBK'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true),
226     (CharsetID: 68; CharSetName: 'CP943C'; CharSetWidth: 2; CodePage: 943; AllowReverseLookup: true),
227     (CharsetID: 69; CharSetName: 'GB18030'; CharSetWidth: 4; CodePage: 54936; AllowReverseLookup: true)
228     );
229    
230    
231    
232    
233 tony 45 { TFBAttachment }
234    
235 tony 117 procedure TFBAttachment.GetODSAndConnectionInfo;
236     var DBInfo: IDBInformation;
237     i: integer;
238     Stmt: IStatement;
239     ResultSet: IResultSet;
240     Param: IDPBItem;
241     begin
242     if not IsConnected then Exit;
243     DBInfo := GetDBInformation([isc_info_db_id,isc_info_ods_version,isc_info_ods_minor_version,
244     isc_info_db_SQL_Dialect]);
245     for i := 0 to DBInfo.GetCount - 1 do
246     with DBInfo[i] do
247     case getItemType of
248     isc_info_ods_minor_version:
249     FODSMinorVersion := getAsInteger;
250     isc_info_ods_version:
251     FODSMajorVersion := getAsInteger;
252     isc_info_db_SQL_Dialect:
253     FSQLDialect := getAsInteger;
254     end;
255    
256 tony 143 FCharSetID := 0;
257     FRemoteProtocol := '';
258     FAuthMethod := 'Legacy_Auth';
259 tony 209 FSecDatabase := 'Default';
260 tony 143 if FODSMajorVersion > 11 then
261 tony 117 begin
262     Stmt := Prepare(StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit),
263 tony 209 'Select MON$CHARACTER_SET_ID, MON$REMOTE_PROTOCOL, MON$AUTH_METHOD, MON$SEC_DATABASE From MON$ATTACHMENTS, MON$DATABASE '+
264 tony 143 'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION');
265     ResultSet := Stmt.OpenCursor;
266     if ResultSet.FetchNext then
267     begin
268     FCharSetID := ResultSet[0].AsInteger;
269 tony 209 FRemoteProtocol := Trim(ResultSet[1].AsString);
270     FAuthMethod := Trim(ResultSet[2].AsString);
271     FSecDatabase := Trim(ResultSet[3].AsString);
272 tony 143 end
273     end
274     else
275     if (FODSMajorVersion = 11) and (FODSMinorVersion >= 1) then
276     begin
277     Stmt := Prepare(StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit),
278 tony 117 'Select MON$CHARACTER_SET_ID, MON$REMOTE_PROTOCOL From MON$ATTACHMENTS '+
279     'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION');
280     ResultSet := Stmt.OpenCursor;
281     if ResultSet.FetchNext then
282     begin
283     FCharSetID := ResultSet[0].AsInteger;
284 tony 209 FRemoteProtocol := Trim(ResultSet[1].AsString);
285 tony 117 end
286     end
287     else
288     if DPB <> nil then
289     begin
290     Param := DPB.Find(isc_dpb_lc_ctype);
291     if (Param = nil) or not CharSetName2CharSetID(Param.AsString,FCharSetID) then
292     FCharSetID := 0;
293 tony 143 case GetProtocol(FDatabaseName) of
294     TCP: FRemoteProtocol := 'TCPv4';
295     Local: FRemoteProtocol := '';
296     NamedPipe: FRemoteProtocol := 'Netbui';
297     SPX: FRemoteProtocol := 'SPX'
298     end;
299 tony 117 end;
300     FHasDefaultCharSet := CharSetID2CodePage(FCharSetID,FCodePage) and (FCharSetID > 1);
301     end;
302    
303 tony 263 constructor TFBAttachment.Create(api: TFBClientAPI; DatabaseName: AnsiString;
304     DPB: IDPB; RaiseExceptionOnConnectError: boolean);
305 tony 45 begin
306     inherited Create;
307 tony 263 FFirebirdAPI := api.GetAPI; {Keep reference to interface}
308 tony 45 FSQLDialect := 3;
309     FDatabaseName := DatabaseName;
310     FDPB := DPB;
311 tony 60 SetLength(FUserCharSetMap,0);
312 tony 45 FRaiseExceptionOnConnectError := RaiseExceptionOnConnectError;
313 tony 117 FODSMajorVersion := 0;
314     FODSMinorVersion := 0;
315 tony 45 end;
316    
317 tony 56 function TFBAttachment.GenerateCreateDatabaseSQL(DatabaseName: AnsiString; aDPB: IDPB): AnsiString;
318     var CreateParams: AnsiString;
319 tony 45 DPBItem: IDPBItem;
320     begin
321     CreateParams := '';
322    
323     if aDPB <> nil then
324     begin
325     DPBItem := aDPB.Find(isc_dpb_user_name);
326     if DPBItem <> nil then
327 tony 56 CreateParams := CreateParams + ' USER ''' + DPBItem.AsString + '''';
328 tony 45
329     DPBItem := aDPB.Find(isc_dpb_password);
330     if DPBItem <> nil then
331 tony 56 CreateParams := CreateParams + ' Password ''' + DPBItem.AsString + '''';
332 tony 45
333     DPBItem := aDPB.Find(isc_dpb_page_size);
334     if DPBItem <> nil then
335 tony 56 CreateParams := CreateParams + ' PAGE_SIZE ' + DPBItem.AsString;
336 tony 45
337     DPBItem := aDPB.Find(isc_dpb_lc_ctype);
338     if DPBItem <> nil then
339 tony 56 CreateParams := CreateParams + ' DEFAULT CHARACTER SET ' + DPBItem.AsString;
340 tony 45
341     DPBItem := aDPB.Find(isc_dpb_sql_dialect);
342     if DPBItem <> nil then
343     FSQLDialect := DPBItem.AsInteger;
344     end;
345    
346     Result := 'CREATE DATABASE ''' + DatabaseName + ''' ' + CreateParams; {do not localize}
347     end;
348    
349     procedure TFBAttachment.EndAllTransactions;
350     var i: integer;
351     intf: TInterfacedObject;
352     begin
353     for i := 0 to InterfaceCount - 1 do
354     begin
355     intf := GetInterface(i);
356     if (intf <> nil) and (intf is TFBTransaction) then
357     TFBTransaction(intf).DoDefaultTransactionEnd(true);
358     end;
359     end;
360    
361 tony 118 {$IFDEF HASREQEX}
362 tony 117 procedure TFBAttachment.DPBFromCreateSQL(CreateSQL: AnsiString);
363     var RegexObj: TRegExpr;
364     begin
365     FDPB := FFirebirdAPI.AllocateDPB;
366     RegexObj := TRegExpr.Create;
367     try
368     {extact database file spec}
369     RegexObj.ModifierG := false; {turn off greedy matches}
370     RegexObj.ModifierI := true; {case insensitive match}
371     RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +''.*'' +USER +''(.+)'' PASSWORD +''(.+)''';
372     if RegexObj.Exec(CreateSQL) then
373     begin
374     DPB.Add(isc_dpb_user_name).AsString := system.copy(CreateSQL,RegexObj.MatchPos[2],RegexObj.MatchLen[2]);
375     DPB.Add(isc_dpb_password).AsString := system.copy(CreateSQL,RegexObj.MatchPos[3],RegexObj.MatchLen[3]);
376     end
377     else
378     begin
379     RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +(''.*'') +USER +''(.+)''';
380     if RegexObj.Exec(CreateSQL) then
381     DPB.Add(isc_dpb_user_name).AsString := system.copy(CreateSQL,RegexObj.MatchPos[2],RegexObj.MatchLen[2]);
382     end;
383     finally
384     RegexObj.Free;
385     end;
386     if FCharSetID > 0 then
387     DPB.Add(isc_dpb_lc_ctype).AsString := GetCharSetName(FCharSetID);
388     DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(FSQLDialect);
389     end;
390 tony 118 {$ELSE}
391     procedure TFBAttachment.DPBFromCreateSQL(CreateSQL: AnsiString);
392 tony 119 begin
393     FDPB := FFirebirdAPI.AllocateDPB;
394     if FCharSetID > 0 then
395     DPB.Add(isc_dpb_lc_ctype).AsString := GetCharSetName(FCharSetID);
396     DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(FSQLDialect);
397 tony 118 end;
398     {$ENDIF}
399 tony 117
400 tony 45 procedure TFBAttachment.SetParameters(SQLParams: ISQLParams;
401     params: array of const);
402     var i: integer;
403     begin
404     if SQLParams.Count <> Length(params) then
405     IBError(ibxeInvalidParamCount,[SQLParams.Count,Length(params)]);
406    
407     for i := 0 to High(params) do
408     begin
409     case params[i].vtype of
410     vtinteger :
411     SQLParams[i].AsInteger := params[i].vinteger;
412 tony 70 vtInt64:
413     SQLParams[i].AsInt64 := params[i].VInt64^;
414     {$IF declared (vtQWord)}
415     vtQWord:
416     SQLParams[i].AsInt64 := params[i].VQWord^;
417     {$IFEND}
418 tony 45 vtboolean :
419     SQLParams[i].AsBoolean := params[i].vboolean;
420     vtchar :
421     SQLParams[i].AsString := params[i].vchar;
422     vtextended :
423     SQLParams[i].AsDouble := params[i].VExtended^;
424     vtCurrency:
425     SQLParams[i].AsDouble := params[i].VCurrency^;
426     vtString :
427 tony 70 SQLParams[i].AsString := strpas(PChar(params[i].VString));
428 tony 45 vtPChar :
429     SQLParams[i].AsString := strpas(params[i].VPChar);
430     vtAnsiString :
431 tony 70 SQLParams[i].AsString := strpas(PAnsiChar(params[i].VAnsiString));
432 tony 45 vtVariant:
433     SQLParams[i].AsVariant := params[i].VVariant^;
434 tony 70 vtWideChar:
435     SQLParams[i].AsString := UTF8Encode(WideCharLenToString(@params[i].VWideChar,1));
436     vtPWideChar:
437     SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VPWideChar)));
438     vtWideString:
439     SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VWideString)));
440     vtUnicodeString:
441     SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VUnicodeString)));
442 tony 45 else
443     IBError(ibxeInvalidVariantType,[nil]);
444     end;
445     end;
446     end;
447    
448     destructor TFBAttachment.Destroy;
449     begin
450     Disconnect(true);
451     inherited Destroy;
452     end;
453    
454 tony 263 function TFBAttachment.getFirebirdAPI: IFirebirdAPI;
455     begin
456     Result := FFirebirdAPI;
457     end;
458    
459 tony 45 function TFBAttachment.getDPB: IDPB;
460     begin
461     Result := FDPB;
462     end;
463    
464     function TFBAttachment.AllocateBPB: IBPB;
465     begin
466 tony 263 Result := TBPB.Create(FFirebirdAPI as TFBClientAPI);
467 tony 45 end;
468    
469 tony 143 function TFBAttachment.AllocateDIRB: IDIRB;
470     begin
471 tony 263 Result := TDIRB.Create(FFirebirdAPI as TFBClientAPI);
472 tony 143 end;
473    
474 tony 56 procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString;
475 tony 45 aSQLDialect: integer);
476     begin
477     ExecImmediate(StartTransaction(TPB,taCommit),sql,aSQLDialect);
478     end;
479    
480 tony 56 procedure TFBAttachment.ExecImmediate(transaction: ITransaction; sql: AnsiString);
481 tony 45 begin
482     ExecImmediate(transaction,sql,FSQLDialect);
483     end;
484    
485 tony 56 procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString);
486 tony 45 begin
487     ExecImmediate(StartTransaction(TPB,taCommit),sql,FSQLDialect);
488     end;
489    
490 tony 56 function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString;
491 tony 45 SQLDialect: integer; params: array of const): IResults;
492     begin
493 tony 117 Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,SQLDialect,params);
494 tony 45 end;
495    
496 tony 56 function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString;
497 tony 45 SQLDialect: integer; params: array of const): IResults;
498     begin
499     with Prepare(transaction,sql,SQLDialect) do
500     begin
501     SetParameters(SQLParams,params);
502     Result := Execute;
503     end;
504     end;
505    
506 tony 56 function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString;
507 tony 45 params: array of const): IResults;
508     begin
509     Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,params);
510     end;
511    
512 tony 56 function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString;
513 tony 45 params: array of const): IResults;
514     begin
515     with Prepare(transaction,sql,FSQLDialect) do
516     begin
517     SetParameters(SQLParams,params);
518     Result := Execute;
519     end;
520     end;
521    
522 tony 56 function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
523 tony 45 aSQLDialect: integer): IResultSet;
524     begin
525     Result := OpenCursor(transaction,sql,aSQLDialect,[]);
526     end;
527    
528 tony 56 function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
529 tony 45 aSQLDialect: integer; params: array of const): IResultSet;
530     var Statement: IStatement;
531     begin
532     CheckHandle;
533     Statement := Prepare(transaction,sql,aSQLDialect);
534     SetParameters(Statement.SQLParams,params);
535     Result := Statement.OpenCursor;
536     end;
537    
538 tony 56 function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString
539 tony 45 ): IResultSet;
540     begin
541     Result := OpenCursor(transaction,sql,FSQLDialect,[]);
542     end;
543    
544 tony 56 function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
545 tony 45 params: array of const): IResultSet;
546     begin
547     Result := OpenCursor(transaction,sql,FSQLDialect,params);
548     end;
549    
550     function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
551 tony 56 sql: AnsiString; aSQLDialect: integer): IResultSet;
552 tony 45 begin
553     Result := OpenCursor(transaction,sql,aSQLDialect,[]);
554     Result.FetchNext;
555     end;
556    
557     function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
558 tony 56 sql: AnsiString; aSQLDialect: integer; params: array of const): IResultSet;
559 tony 45 begin
560     Result := OpenCursor(transaction,sql,aSQLDialect,params);
561     Result.FetchNext;
562     end;
563    
564 tony 56 function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; sql: AnsiString
565 tony 45 ): IResultSet;
566     begin
567     Result := OpenCursorAtStart(transaction,sql,FSQLDialect,[]);
568     end;
569    
570     function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
571 tony 56 sql: AnsiString; params: array of const): IResultSet;
572 tony 45 begin
573     Result := OpenCursorAtStart(transaction,sql,FSQLDialect,params);
574     end;
575    
576 tony 56 function TFBAttachment.OpenCursorAtStart(sql: AnsiString): IResultSet;
577 tony 45 begin
578     Result := OpenCursorAtStart(sql,[]);
579     end;
580    
581 tony 56 function TFBAttachment.OpenCursorAtStart(sql: AnsiString;
582 tony 45 params: array of const): IResultSet;
583     begin
584     Result := OpenCursorAtStart(StartTransaction([isc_tpb_read,isc_tpb_wait,isc_tpb_concurrency],taCommit),sql,FSQLDialect,params);
585     end;
586    
587 tony 56 function TFBAttachment.Prepare(transaction: ITransaction; sql: AnsiString
588 tony 45 ): IStatement;
589     begin
590     Result := Prepare(transaction,sql,FSQLDialect);
591     end;
592    
593     function TFBAttachment.PrepareWithNamedParameters(transaction: ITransaction;
594 tony 56 sql: AnsiString; GenerateParamNames: boolean): IStatement;
595 tony 45 begin
596     Result := PrepareWithNamedParameters(transaction,sql,FSQLDialect,GenerateParamNames);
597     end;
598    
599 tony 56 function TFBAttachment.GetEventHandler(Event: AnsiString): IEvents;
600 tony 45 var S: TStringList;
601     begin
602     S := TStringList.Create;
603     try
604     S.Add(Event);
605     Result := GetEventHandler(S);
606     finally
607     S.Free;
608     end;
609     end;
610    
611     function TFBAttachment.GetSQLDialect: integer;
612     begin
613     Result := FSQLDialect;
614     end;
615    
616     function TFBAttachment.OpenBlob(transaction: ITransaction; Field: ISQLData;
617     BPB: IBPB): IBlob;
618     begin
619     Result := OpenBlob(Transaction,Field.GetBlobMetadata, Field.AsQuad,BPB);
620     end;
621    
622 tony 143 function TFBAttachment.GetDBInformation(Requests: array of byte
623     ): IDBInformation;
624     var ReqBuffer: PByte;
625     i: integer;
626     begin
627     CheckHandle;
628     if Length(Requests) = 1 then
629     Result := GetDBInformation(Requests[0])
630     else
631     begin
632     GetMem(ReqBuffer,Length(Requests));
633     try
634     for i := 0 to Length(Requests) - 1 do
635     ReqBuffer[i] := Requests[i];
636    
637     Result := GetDBInfo(ReqBuffer,Length(Requests));
638    
639     finally
640     FreeMem(ReqBuffer);
641     end;
642     end;
643     end;
644    
645     function TFBAttachment.GetDBInformation(Request: byte): IDBInformation;
646     begin
647     CheckHandle;
648     Result := GetDBInfo(@Request,1);
649     end;
650    
651     function TFBAttachment.GetDBInformation(Requests: IDIRB): IDBInformation;
652     begin
653     CheckHandle;
654     with Requests as TDIRB do
655     Result := GetDBInfo(getBuffer,getDataLength);
656     end;
657    
658 tony 117 function TFBAttachment.GetConnectString: AnsiString;
659     begin
660     Result := FDatabaseName;
661     end;
662    
663     function TFBAttachment.GetRemoteProtocol: AnsiString;
664     begin
665     Result := FRemoteProtocol;
666     end;
667    
668 tony 143 function TFBAttachment.GetAuthenticationMethod: AnsiString;
669     begin
670     Result := FAuthMethod;
671     end;
672    
673 tony 209 function TFBAttachment.GetSecurityDatabase: AnsiString;
674     begin
675     Result := FSecDatabase;
676     end;
677    
678 tony 117 function TFBAttachment.GetODSMajorVersion: integer;
679     begin
680     Result := FODSMajorVersion;
681     end;
682    
683     function TFBAttachment.GetODSMinorVersion: integer;
684     begin
685     Result := FODSMinorVersion;
686     end;
687    
688 tony 109 function TFBAttachment.HasDefaultCharSet: boolean;
689     begin
690     Result := FHasDefaultCharSet
691     end;
692    
693     function TFBAttachment.GetDefaultCharSetID: integer;
694     begin
695     Result := FCharsetID;
696     end;
697    
698 tony 60 function TFBAttachment.GetCharsetName(CharSetID: integer): AnsiString;
699     var i: integer;
700     begin
701     Result := '';
702     if (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap)) and
703     (CharSetMap[CharSetID].CharSetID = CharSetID) then
704     begin
705     Result := CharSetMap[CharSetID].CharSetName;
706     Exit;
707     end;
708    
709     for i := 0 to Length(FUserCharSetMap) - 1 do
710     if FUserCharSetMap[i].CharSetID = CharSetID then
711     begin
712     Result := FUserCharSetMap[i].CharSetName;
713     Exit;
714     end;
715     end;
716    
717     function TFBAttachment.CharSetID2CodePage(CharSetID: integer;
718     var CodePage: TSystemCodePage): boolean;
719     var i: integer;
720     begin
721     Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap))
722     and (CharSetMap[CharSetID].CharSetID = CharSetID);
723     if Result then
724     begin
725     CodePage := CharSetMap[CharSetID].CodePage;
726     Result := true;
727     Exit;
728     end;
729    
730     for i := 0 to Length(FUserCharSetMap) - 1 do
731     if FUserCharSetMap[i].CharSetID = CharSetID then
732     begin
733     CodePage := FUserCharSetMap[i].CodePage;
734     Result := true;
735     Exit;
736     end;
737     end;
738    
739     function TFBAttachment.CodePage2CharSetID(CodePage: TSystemCodePage;
740     var CharSetID: integer): boolean;
741     var i: integer;
742     begin
743     Result := false;
744     for i := Low(CharSetMap) to High(CharSetMap) do
745     if (CharSetMap[i].AllowReverseLookup) and (CharSetMap[i].CodePage = CodePage) then
746     begin
747     CharSetID := CharSetMap[i].CharSetID;
748     Result := true;
749     Exit;
750     end;
751    
752     for i := 0 to Length(FUserCharSetMap) - 1 do
753     if (FUserCharSetMap[i].AllowReverseLookup) and (FUserCharSetMap[i].CodePage = CodePage) then
754     begin
755     CharSetID := FUserCharSetMap[i].CharSetID;
756     Result := true;
757     Exit;
758     end;
759     end;
760    
761     function TFBAttachment.CharSetName2CharSetID(CharSetName: AnsiString;
762     var CharSetID: integer): boolean;
763     var i: integer;
764     begin
765     Result := false;
766     for i := Low(CharSetMap) to High(CharSetMap) do
767 tony 233 if AnsiCompareText(CharSetMap[i].CharSetName, CharSetName) = 0 then
768 tony 60 begin
769     CharSetID := CharSetMap[i].CharSetID;
770     Result := true;
771     Exit;
772     end;
773    
774     for i := 0 to Length(FUserCharSetMap) - 1 do
775 tony 233 if AnsiCompareText(FUserCharSetMap[i].CharSetName, CharSetName) = 0 then
776 tony 60 begin
777     CharSetID := FUserCharSetMap[i].CharSetID;
778     Result := true;
779     Exit;
780     end;
781     end;
782    
783     function TFBAttachment.CharSetWidth(CharSetID: integer; var Width: integer
784     ): boolean;
785     var i: integer;
786     begin
787     Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap))
788     and (CharSetMap[CharSetID].CharSetID = CharSetID);
789     if Result then
790     begin
791     Width := CharSetMap[CharSetID].CharSetWidth;
792     Result := true;
793     Exit;
794     end;
795    
796     for i := 0 to Length(FUserCharSetMap) - 1 do
797     if FUserCharSetMap[i].CharSetID = CharSetID then
798     begin
799     Width := FUserCharSetMap[i].CharSetWidth;
800     Result := true;
801     Exit;
802     end;
803     end;
804    
805     const
806     sqlLookupCharSet = 'Select RDB$CHARACTER_SET_ID, RDB$BYTES_PER_CHARACTER From RDB$CHARACTER_SETS '+
807     'Where RDB$SYSTEM_FLAG = 0 and RDB$CHARACTER_SET_NAME = UPPER(?)';
808    
809     procedure TFBAttachment.RegisterCharSet(CharSetName: AnsiString;
810     CodePage: TSystemCodePage; AllowReverseLookup: boolean; out CharSetID: integer
811     );
812     var CharSets: IResultSet;
813     idx: integer;
814     begin
815     if CharSetName2CharSetID(CharSetName,CharSetID) then
816     IBError(ibxeCharacterSetExists,[CharSetName]);
817    
818     CharSets := OpenCursorAtStart(sqlLookupCharSet,[CharSetName]);
819     if CharSets.IsEof then
820     IBError(ibxeUnknownUserCharSet,[CharSetName]);
821    
822     idx := Length(FUserCharSetMap);
823     SetLength(FUserCharSetMap,idx+1);
824     FUserCharSetMap[idx].AllowReverseLookup := AllowReverseLookup;
825     FUserCharSetMap[idx].CharSetID := CharSets[0].AsInteger;
826     FUserCharSetMap[idx].CharSetName := AnsiUpperCase(CharSetName);
827     FUserCharSetMap[idx].CharSetWidth := CharSets[1].AsInteger;
828     FUserCharSetMap[idx].CodePage := CodePage;
829     CharSetID := CharSets[0].AsInteger;
830     end;
831    
832 tony 45 end.
833