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root/public/ibx/trunk/fbintf/client/FBAttachment.pas
Revision: 233
Committed: Mon Apr 16 09:24:40 2018 UTC (6 years, 7 months ago) by tony
Content type: text/x-pascal
File size: 32389 byte(s)
Log Message: 
Fixes merged

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