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root/public/ibx/trunk/fbintf/client/FBAttachment.pas
Revision: 270
Committed: Fri Jan 18 11:10:37 2019 UTC (5 years, 3 months ago) by tony
Content type: text/x-pascal
File size: 32807 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 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 270 aSQLDialect: integer; GenerateParamNames: boolean=false;
118     CaseSensitiveParams: boolean = false): IStatement; overload; virtual; abstract;
119 tony 56 function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString;
120 tony 270 GenerateParamNames: boolean=false;
121     CaseSensitiveParams: boolean = false): IStatement; overload;
122 tony 45 function GetEventHandler(Events: TStrings): IEvents; overload; virtual; abstract;
123 tony 56 function GetEventHandler(Event: AnsiString): IEvents; overload;
124 tony 45
125     function GetSQLDialect: integer;
126 tony 56 function OpenBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload; virtual; abstract;
127 tony 45 function OpenBlob(transaction: ITransaction; Field: ISQLData; BPB: IBPB=nil): IBlob; overload;
128     property SQLDialect: integer read FSQLDialect;
129     property DPB: IDPB read FDPB;
130 tony 60 public
131 tony 143 function GetDBInformation(Requests: array of byte): IDBInformation; overload;
132     function GetDBInformation(Request: byte): IDBInformation; overload;
133     function GetDBInformation(Requests: IDIRB): IDBInformation; overload;
134 tony 117 function GetConnectString: AnsiString;
135     function GetRemoteProtocol: AnsiString;
136 tony 143 function GetAuthenticationMethod: AnsiString;
137 tony 209 function GetSecurityDatabase: AnsiString;
138 tony 117 function GetODSMajorVersion: integer;
139     function GetODSMinorVersion: integer;
140     {Character Sets}
141 tony 109 function HasDefaultCharSet: boolean;
142     function GetDefaultCharSetID: integer;
143 tony 60 function GetCharsetName(CharSetID: integer): AnsiString;
144     function CharSetID2CodePage(CharSetID: integer; var CodePage: TSystemCodePage): boolean;
145     function CodePage2CharSetID(CodePage: TSystemCodePage; var CharSetID: integer): boolean;
146     function CharSetName2CharSetID(CharSetName: AnsiString; var CharSetID: integer): boolean;
147     function CharSetWidth(CharSetID: integer; var Width: integer): boolean;
148     procedure RegisterCharSet(CharSetName: AnsiString; CodePage: TSystemCodePage;
149     AllowReverseLookup:boolean; out CharSetID: integer);
150     property CharSetID: integer read FCharSetID;
151     property CodePage: TSystemCodePage read FCodePage;
152 tony 45 end;
153    
154     implementation
155    
156 tony 143 uses FBMessages, IBUtils, FBTransaction {$IFDEF HASREQEX}, RegExpr{$ENDIF};
157 tony 45
158 tony 60 const
159     CharSetMap: array [0..69] of TCharsetMap = (
160     (CharsetID: 0; CharSetName: 'NONE'; CharSetWidth: 1; CodePage: CP_ACP; AllowReverseLookup: true),
161     (CharsetID: 1; CharSetName: 'OCTETS'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true),
162     (CharsetID: 2; CharSetName: 'ASCII'; CharSetWidth: 1; CodePage: CP_ASCII; AllowReverseLookup: true),
163     (CharsetID: 3; CharSetName: 'UNICODE_FSS'; CharSetWidth: 3; CodePage: CP_UTF8; AllowReverseLookup: false),
164     (CharsetID: 4; CharSetName: 'UTF8'; CharSetWidth: 4; CodePage: CP_UTF8; AllowReverseLookup: true),
165     (CharsetID: 5; CharSetName: 'SJIS_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true),
166     (CharsetID: 6; CharSetName: 'EUCJ_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true),
167     (CharsetID: 7; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
168     (CharsetID: 8; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
169     (CharsetID: 9; CharSetName: 'DOS737'; CharSetWidth: 1; CodePage: 737; AllowReverseLookup: true),
170     (CharsetID: 10; CharSetName: 'DOS437'; CharSetWidth: 1; CodePage: 437; AllowReverseLookup: true),
171     (CharsetID: 11; CharSetName: 'DOS850'; CharSetWidth: 1; CodePage: 850; AllowReverseLookup: true),
172     (CharsetID: 12; CharSetName: 'DOS865'; CharSetWidth: 1; CodePage: 865; AllowReverseLookup: true),
173     (CharsetID: 13; CharSetName: 'DOS860'; CharSetWidth: 1; CodePage: 860; AllowReverseLookup: true),
174     (CharsetID: 14; CharSetName: 'DOS863'; CharSetWidth: 1; CodePage: 863; AllowReverseLookup: true),
175     (CharsetID: 15; CharSetName: 'DOS775'; CharSetWidth: 1; CodePage: 775; AllowReverseLookup: true),
176     (CharsetID: 16; CharSetName: 'DOS858'; CharSetWidth: 1; CodePage: 858; AllowReverseLookup: true),
177     (CharsetID: 17; CharSetName: 'DOS862'; CharSetWidth: 1; CodePage: 862; AllowReverseLookup: true),
178     (CharsetID: 18; CharSetName: 'DOS864'; CharSetWidth: 1; CodePage: 864; AllowReverseLookup: true),
179     (CharsetID: 19; CharSetName: 'NEXT'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true),
180     (CharsetID: 20; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
181     (CharsetID: 21; CharSetName: 'ISO8859_1'; CharSetWidth: 1; CodePage: 28591; AllowReverseLookup: true),
182     (CharsetID: 22; CharSetName: 'ISO8859_2'; CharSetWidth: 1; CodePage: 28592; AllowReverseLookup: true),
183     (CharsetID: 23; CharSetName: 'ISO8859_3'; CharSetWidth: 1; CodePage: 28593; AllowReverseLookup: true),
184     (CharsetID: 24; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
185     (CharsetID: 25; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
186     (CharsetID: 26; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
187     (CharsetID: 27; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
188     (CharsetID: 28; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
189     (CharsetID: 29; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
190     (CharsetID: 30; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
191     (CharsetID: 31; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
192     (CharsetID: 32; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
193     (CharsetID: 33; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
194     (CharsetID: 34; CharSetName: 'ISO8859_4'; CharSetWidth: 1; CodePage: 28594; AllowReverseLookup: true),
195     (CharsetID: 35; CharSetName: 'ISO8859_5'; CharSetWidth: 1; CodePage: 28595; AllowReverseLookup: true),
196     (CharsetID: 36; CharSetName: 'ISO8859_6'; CharSetWidth: 1; CodePage: 28596; AllowReverseLookup: true),
197     (CharsetID: 37; CharSetName: 'ISO8859_7'; CharSetWidth: 1; CodePage: 28597; AllowReverseLookup: true),
198     (CharsetID: 38; CharSetName: 'ISO8859_8'; CharSetWidth: 1; CodePage: 28598; AllowReverseLookup: true),
199     (CharsetID: 39; CharSetName: 'ISO8859_9'; CharSetWidth: 1; CodePage: 28599; AllowReverseLookup: true),
200     (CharsetID: 40; CharSetName: 'ISO8859_13'; CharSetWidth: 1; CodePage: 28603; AllowReverseLookup: true),
201     (CharsetID: 41; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
202     (CharsetID: 42; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
203     (CharsetID: 43; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
204     (CharsetID: 44; CharSetName: 'KSC_5601'; CharSetWidth: 2; CodePage: 949; AllowReverseLookup: true),
205     (CharsetID: 45; CharSetName: 'DOS852'; CharSetWidth: 1; CodePage: 852; AllowReverseLookup: true),
206     (CharsetID: 46; CharSetName: 'DOS857'; CharSetWidth: 1; CodePage: 857; AllowReverseLookup: true),
207     (CharsetID: 47; CharSetName: 'DOS861'; CharSetWidth: 1; CodePage: 861; AllowReverseLookup: true),
208     (CharsetID: 48; CharSetName: 'DOS866'; CharSetWidth: 1; CodePage: 866; AllowReverseLookup: true),
209     (CharsetID: 49; CharSetName: 'DOS869'; CharSetWidth: 1; CodePage: 869; AllowReverseLookup: true),
210     (CharsetID: 50; CharSetName: 'CYRL'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true),
211     (CharsetID: 51; CharSetName: 'WIN1250'; CharSetWidth: 1; CodePage: 1250; AllowReverseLookup: true),
212     (CharsetID: 52; CharSetName: 'WIN1251'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true),
213     (CharsetID: 53; CharSetName: 'WIN1252'; CharSetWidth: 1; CodePage: 1252; AllowReverseLookup: true),
214     (CharsetID: 54; CharSetName: 'WIN1253'; CharSetWidth: 1; CodePage: 1253; AllowReverseLookup: true),
215     (CharsetID: 55; CharSetName: 'WIN1254'; CharSetWidth: 1; CodePage: 1254; AllowReverseLookup: true),
216     (CharsetID: 56; CharSetName: 'BIG_5'; CharSetWidth: 2; CodePage: 950; AllowReverseLookup: true),
217     (CharsetID: 57; CharSetName: 'GB_2312'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true),
218     (CharsetID: 58; CharSetName: 'WIN1255'; CharSetWidth: 1; CodePage: 1255; AllowReverseLookup: true),
219     (CharsetID: 59; CharSetName: 'WIN1256'; CharSetWidth: 1; CodePage: 1256; AllowReverseLookup: true),
220     (CharsetID: 60; CharSetName: 'WIN1257'; CharSetWidth: 1; CodePage: 1257; AllowReverseLookup: true),
221     (CharsetID: 61; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
222     (CharsetID: 62; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
223     (CharsetID: 63; CharSetName: 'KOI8R'; CharSetWidth: 1; CodePage: 20866; AllowReverseLookup: true),
224     (CharsetID: 64; CharSetName: 'KOI8U'; CharSetWidth: 1; CodePage: 21866; AllowReverseLookup: true),
225     (CharsetID: 65; CharSetName: 'WIN1258'; CharSetWidth: 1; CodePage: 1258; AllowReverseLookup: true),
226     (CharsetID: 66; CharSetName: 'TIS620'; CharSetWidth: 1; CodePage: 874; AllowReverseLookup: true),
227     (CharsetID: 67; CharSetName: 'GBK'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true),
228     (CharsetID: 68; CharSetName: 'CP943C'; CharSetWidth: 2; CodePage: 943; AllowReverseLookup: true),
229     (CharsetID: 69; CharSetName: 'GB18030'; CharSetWidth: 4; CodePage: 54936; AllowReverseLookup: true)
230     );
231    
232    
233    
234    
235 tony 45 { TFBAttachment }
236    
237 tony 117 procedure TFBAttachment.GetODSAndConnectionInfo;
238     var DBInfo: IDBInformation;
239     i: integer;
240     Stmt: IStatement;
241     ResultSet: IResultSet;
242     Param: IDPBItem;
243     begin
244     if not IsConnected then Exit;
245     DBInfo := GetDBInformation([isc_info_db_id,isc_info_ods_version,isc_info_ods_minor_version,
246     isc_info_db_SQL_Dialect]);
247     for i := 0 to DBInfo.GetCount - 1 do
248     with DBInfo[i] do
249     case getItemType of
250     isc_info_ods_minor_version:
251     FODSMinorVersion := getAsInteger;
252     isc_info_ods_version:
253     FODSMajorVersion := getAsInteger;
254     isc_info_db_SQL_Dialect:
255     FSQLDialect := getAsInteger;
256     end;
257    
258 tony 143 FCharSetID := 0;
259     FRemoteProtocol := '';
260     FAuthMethod := 'Legacy_Auth';
261 tony 209 FSecDatabase := 'Default';
262 tony 143 if FODSMajorVersion > 11 then
263 tony 117 begin
264     Stmt := Prepare(StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit),
265 tony 209 'Select MON$CHARACTER_SET_ID, MON$REMOTE_PROTOCOL, MON$AUTH_METHOD, MON$SEC_DATABASE From MON$ATTACHMENTS, MON$DATABASE '+
266 tony 143 'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION');
267     ResultSet := Stmt.OpenCursor;
268     if ResultSet.FetchNext then
269     begin
270     FCharSetID := ResultSet[0].AsInteger;
271 tony 209 FRemoteProtocol := Trim(ResultSet[1].AsString);
272     FAuthMethod := Trim(ResultSet[2].AsString);
273     FSecDatabase := Trim(ResultSet[3].AsString);
274 tony 143 end
275     end
276     else
277     if (FODSMajorVersion = 11) and (FODSMinorVersion >= 1) then
278     begin
279     Stmt := Prepare(StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit),
280 tony 117 'Select MON$CHARACTER_SET_ID, MON$REMOTE_PROTOCOL From MON$ATTACHMENTS '+
281     'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION');
282     ResultSet := Stmt.OpenCursor;
283     if ResultSet.FetchNext then
284     begin
285     FCharSetID := ResultSet[0].AsInteger;
286 tony 209 FRemoteProtocol := Trim(ResultSet[1].AsString);
287 tony 117 end
288     end
289     else
290     if DPB <> nil then
291     begin
292     Param := DPB.Find(isc_dpb_lc_ctype);
293     if (Param = nil) or not CharSetName2CharSetID(Param.AsString,FCharSetID) then
294     FCharSetID := 0;
295 tony 143 case GetProtocol(FDatabaseName) of
296     TCP: FRemoteProtocol := 'TCPv4';
297     Local: FRemoteProtocol := '';
298     NamedPipe: FRemoteProtocol := 'Netbui';
299     SPX: FRemoteProtocol := 'SPX'
300     end;
301 tony 117 end;
302     FHasDefaultCharSet := CharSetID2CodePage(FCharSetID,FCodePage) and (FCharSetID > 1);
303     end;
304    
305 tony 263 constructor TFBAttachment.Create(api: TFBClientAPI; DatabaseName: AnsiString;
306     DPB: IDPB; RaiseExceptionOnConnectError: boolean);
307 tony 45 begin
308     inherited Create;
309 tony 263 FFirebirdAPI := api.GetAPI; {Keep reference to interface}
310 tony 45 FSQLDialect := 3;
311     FDatabaseName := DatabaseName;
312     FDPB := DPB;
313 tony 60 SetLength(FUserCharSetMap,0);
314 tony 45 FRaiseExceptionOnConnectError := RaiseExceptionOnConnectError;
315 tony 117 FODSMajorVersion := 0;
316     FODSMinorVersion := 0;
317 tony 45 end;
318    
319 tony 56 function TFBAttachment.GenerateCreateDatabaseSQL(DatabaseName: AnsiString; aDPB: IDPB): AnsiString;
320     var CreateParams: AnsiString;
321 tony 45 DPBItem: IDPBItem;
322     begin
323     CreateParams := '';
324    
325     if aDPB <> nil then
326     begin
327     DPBItem := aDPB.Find(isc_dpb_user_name);
328     if DPBItem <> nil then
329 tony 56 CreateParams := CreateParams + ' USER ''' + DPBItem.AsString + '''';
330 tony 45
331     DPBItem := aDPB.Find(isc_dpb_password);
332     if DPBItem <> nil then
333 tony 56 CreateParams := CreateParams + ' Password ''' + DPBItem.AsString + '''';
334 tony 45
335     DPBItem := aDPB.Find(isc_dpb_page_size);
336     if DPBItem <> nil then
337 tony 56 CreateParams := CreateParams + ' PAGE_SIZE ' + DPBItem.AsString;
338 tony 45
339     DPBItem := aDPB.Find(isc_dpb_lc_ctype);
340     if DPBItem <> nil then
341 tony 56 CreateParams := CreateParams + ' DEFAULT CHARACTER SET ' + DPBItem.AsString;
342 tony 45
343     DPBItem := aDPB.Find(isc_dpb_sql_dialect);
344     if DPBItem <> nil then
345     FSQLDialect := DPBItem.AsInteger;
346     end;
347    
348     Result := 'CREATE DATABASE ''' + DatabaseName + ''' ' + CreateParams; {do not localize}
349     end;
350    
351     procedure TFBAttachment.EndAllTransactions;
352     var i: integer;
353     intf: TInterfacedObject;
354     begin
355     for i := 0 to InterfaceCount - 1 do
356     begin
357     intf := GetInterface(i);
358     if (intf <> nil) and (intf is TFBTransaction) then
359     TFBTransaction(intf).DoDefaultTransactionEnd(true);
360     end;
361     end;
362    
363 tony 118 {$IFDEF HASREQEX}
364 tony 117 procedure TFBAttachment.DPBFromCreateSQL(CreateSQL: AnsiString);
365     var RegexObj: TRegExpr;
366     begin
367     FDPB := FFirebirdAPI.AllocateDPB;
368     RegexObj := TRegExpr.Create;
369     try
370     {extact database file spec}
371     RegexObj.ModifierG := false; {turn off greedy matches}
372     RegexObj.ModifierI := true; {case insensitive match}
373     RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +''.*'' +USER +''(.+)'' PASSWORD +''(.+)''';
374     if RegexObj.Exec(CreateSQL) then
375     begin
376     DPB.Add(isc_dpb_user_name).AsString := system.copy(CreateSQL,RegexObj.MatchPos[2],RegexObj.MatchLen[2]);
377     DPB.Add(isc_dpb_password).AsString := system.copy(CreateSQL,RegexObj.MatchPos[3],RegexObj.MatchLen[3]);
378     end
379     else
380     begin
381     RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +(''.*'') +USER +''(.+)''';
382     if RegexObj.Exec(CreateSQL) then
383     DPB.Add(isc_dpb_user_name).AsString := system.copy(CreateSQL,RegexObj.MatchPos[2],RegexObj.MatchLen[2]);
384     end;
385     finally
386     RegexObj.Free;
387     end;
388     if FCharSetID > 0 then
389     DPB.Add(isc_dpb_lc_ctype).AsString := GetCharSetName(FCharSetID);
390     DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(FSQLDialect);
391     end;
392 tony 118 {$ELSE}
393     procedure TFBAttachment.DPBFromCreateSQL(CreateSQL: AnsiString);
394 tony 119 begin
395     FDPB := FFirebirdAPI.AllocateDPB;
396     if FCharSetID > 0 then
397     DPB.Add(isc_dpb_lc_ctype).AsString := GetCharSetName(FCharSetID);
398     DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(FSQLDialect);
399 tony 118 end;
400     {$ENDIF}
401 tony 117
402 tony 45 procedure TFBAttachment.SetParameters(SQLParams: ISQLParams;
403     params: array of const);
404     var i: integer;
405     begin
406     if SQLParams.Count <> Length(params) then
407     IBError(ibxeInvalidParamCount,[SQLParams.Count,Length(params)]);
408    
409     for i := 0 to High(params) do
410     begin
411     case params[i].vtype of
412     vtinteger :
413     SQLParams[i].AsInteger := params[i].vinteger;
414 tony 70 vtInt64:
415     SQLParams[i].AsInt64 := params[i].VInt64^;
416     {$IF declared (vtQWord)}
417     vtQWord:
418     SQLParams[i].AsInt64 := params[i].VQWord^;
419     {$IFEND}
420 tony 45 vtboolean :
421     SQLParams[i].AsBoolean := params[i].vboolean;
422     vtchar :
423     SQLParams[i].AsString := params[i].vchar;
424     vtextended :
425     SQLParams[i].AsDouble := params[i].VExtended^;
426     vtCurrency:
427     SQLParams[i].AsDouble := params[i].VCurrency^;
428     vtString :
429 tony 70 SQLParams[i].AsString := strpas(PChar(params[i].VString));
430 tony 45 vtPChar :
431     SQLParams[i].AsString := strpas(params[i].VPChar);
432     vtAnsiString :
433 tony 70 SQLParams[i].AsString := strpas(PAnsiChar(params[i].VAnsiString));
434 tony 45 vtVariant:
435     SQLParams[i].AsVariant := params[i].VVariant^;
436 tony 70 vtWideChar:
437     SQLParams[i].AsString := UTF8Encode(WideCharLenToString(@params[i].VWideChar,1));
438     vtPWideChar:
439     SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VPWideChar)));
440     vtWideString:
441     SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VWideString)));
442     vtUnicodeString:
443     SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VUnicodeString)));
444 tony 45 else
445     IBError(ibxeInvalidVariantType,[nil]);
446     end;
447     end;
448     end;
449    
450     destructor TFBAttachment.Destroy;
451     begin
452     Disconnect(true);
453     inherited Destroy;
454     end;
455    
456 tony 263 function TFBAttachment.getFirebirdAPI: IFirebirdAPI;
457     begin
458     Result := FFirebirdAPI;
459     end;
460    
461 tony 45 function TFBAttachment.getDPB: IDPB;
462     begin
463     Result := FDPB;
464     end;
465    
466     function TFBAttachment.AllocateBPB: IBPB;
467     begin
468 tony 263 Result := TBPB.Create(FFirebirdAPI as TFBClientAPI);
469 tony 45 end;
470    
471 tony 143 function TFBAttachment.AllocateDIRB: IDIRB;
472     begin
473 tony 263 Result := TDIRB.Create(FFirebirdAPI as TFBClientAPI);
474 tony 143 end;
475    
476 tony 56 procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString;
477 tony 45 aSQLDialect: integer);
478     begin
479     ExecImmediate(StartTransaction(TPB,taCommit),sql,aSQLDialect);
480     end;
481    
482 tony 56 procedure TFBAttachment.ExecImmediate(transaction: ITransaction; sql: AnsiString);
483 tony 45 begin
484     ExecImmediate(transaction,sql,FSQLDialect);
485     end;
486    
487 tony 56 procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString);
488 tony 45 begin
489     ExecImmediate(StartTransaction(TPB,taCommit),sql,FSQLDialect);
490     end;
491    
492 tony 56 function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString;
493 tony 45 SQLDialect: integer; params: array of const): IResults;
494     begin
495 tony 117 Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,SQLDialect,params);
496 tony 45 end;
497    
498 tony 56 function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString;
499 tony 45 SQLDialect: integer; params: array of const): IResults;
500     begin
501     with Prepare(transaction,sql,SQLDialect) do
502     begin
503     SetParameters(SQLParams,params);
504     Result := Execute;
505     end;
506     end;
507    
508 tony 56 function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString;
509 tony 45 params: array of const): IResults;
510     begin
511     Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,params);
512     end;
513    
514 tony 56 function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString;
515 tony 45 params: array of const): IResults;
516     begin
517     with Prepare(transaction,sql,FSQLDialect) do
518     begin
519     SetParameters(SQLParams,params);
520     Result := Execute;
521     end;
522     end;
523    
524 tony 56 function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
525 tony 45 aSQLDialect: integer): IResultSet;
526     begin
527     Result := OpenCursor(transaction,sql,aSQLDialect,[]);
528     end;
529    
530 tony 56 function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
531 tony 45 aSQLDialect: integer; params: array of const): IResultSet;
532     var Statement: IStatement;
533     begin
534     CheckHandle;
535     Statement := Prepare(transaction,sql,aSQLDialect);
536     SetParameters(Statement.SQLParams,params);
537     Result := Statement.OpenCursor;
538     end;
539    
540 tony 56 function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString
541 tony 45 ): IResultSet;
542     begin
543     Result := OpenCursor(transaction,sql,FSQLDialect,[]);
544     end;
545    
546 tony 56 function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
547 tony 45 params: array of const): IResultSet;
548     begin
549     Result := OpenCursor(transaction,sql,FSQLDialect,params);
550     end;
551    
552     function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
553 tony 56 sql: AnsiString; aSQLDialect: integer): IResultSet;
554 tony 45 begin
555     Result := OpenCursor(transaction,sql,aSQLDialect,[]);
556     Result.FetchNext;
557     end;
558    
559     function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
560 tony 56 sql: AnsiString; aSQLDialect: integer; params: array of const): IResultSet;
561 tony 45 begin
562     Result := OpenCursor(transaction,sql,aSQLDialect,params);
563     Result.FetchNext;
564     end;
565    
566 tony 56 function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; sql: AnsiString
567 tony 45 ): IResultSet;
568     begin
569     Result := OpenCursorAtStart(transaction,sql,FSQLDialect,[]);
570     end;
571    
572     function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
573 tony 56 sql: AnsiString; params: array of const): IResultSet;
574 tony 45 begin
575     Result := OpenCursorAtStart(transaction,sql,FSQLDialect,params);
576     end;
577    
578 tony 56 function TFBAttachment.OpenCursorAtStart(sql: AnsiString): IResultSet;
579 tony 45 begin
580     Result := OpenCursorAtStart(sql,[]);
581     end;
582    
583 tony 56 function TFBAttachment.OpenCursorAtStart(sql: AnsiString;
584 tony 45 params: array of const): IResultSet;
585     begin
586     Result := OpenCursorAtStart(StartTransaction([isc_tpb_read,isc_tpb_wait,isc_tpb_concurrency],taCommit),sql,FSQLDialect,params);
587     end;
588    
589 tony 56 function TFBAttachment.Prepare(transaction: ITransaction; sql: AnsiString
590 tony 45 ): IStatement;
591     begin
592     Result := Prepare(transaction,sql,FSQLDialect);
593     end;
594    
595     function TFBAttachment.PrepareWithNamedParameters(transaction: ITransaction;
596 tony 270 sql: AnsiString; GenerateParamNames: boolean; CaseSensitiveParams: boolean): IStatement;
597 tony 45 begin
598 tony 270 Result := PrepareWithNamedParameters(transaction,sql,FSQLDialect,GenerateParamNames,CaseSensitiveParams);
599 tony 45 end;
600    
601 tony 56 function TFBAttachment.GetEventHandler(Event: AnsiString): IEvents;
602 tony 45 var S: TStringList;
603     begin
604     S := TStringList.Create;
605     try
606     S.Add(Event);
607     Result := GetEventHandler(S);
608     finally
609     S.Free;
610     end;
611     end;
612    
613     function TFBAttachment.GetSQLDialect: integer;
614     begin
615     Result := FSQLDialect;
616     end;
617    
618     function TFBAttachment.OpenBlob(transaction: ITransaction; Field: ISQLData;
619     BPB: IBPB): IBlob;
620     begin
621     Result := OpenBlob(Transaction,Field.GetBlobMetadata, Field.AsQuad,BPB);
622     end;
623    
624 tony 143 function TFBAttachment.GetDBInformation(Requests: array of byte
625     ): IDBInformation;
626     var ReqBuffer: PByte;
627     i: integer;
628     begin
629     CheckHandle;
630     if Length(Requests) = 1 then
631     Result := GetDBInformation(Requests[0])
632     else
633     begin
634     GetMem(ReqBuffer,Length(Requests));
635     try
636     for i := 0 to Length(Requests) - 1 do
637     ReqBuffer[i] := Requests[i];
638    
639     Result := GetDBInfo(ReqBuffer,Length(Requests));
640    
641     finally
642     FreeMem(ReqBuffer);
643     end;
644     end;
645     end;
646    
647     function TFBAttachment.GetDBInformation(Request: byte): IDBInformation;
648     begin
649     CheckHandle;
650     Result := GetDBInfo(@Request,1);
651     end;
652    
653     function TFBAttachment.GetDBInformation(Requests: IDIRB): IDBInformation;
654     begin
655     CheckHandle;
656     with Requests as TDIRB do
657     Result := GetDBInfo(getBuffer,getDataLength);
658     end;
659    
660 tony 117 function TFBAttachment.GetConnectString: AnsiString;
661     begin
662     Result := FDatabaseName;
663     end;
664    
665     function TFBAttachment.GetRemoteProtocol: AnsiString;
666     begin
667     Result := FRemoteProtocol;
668     end;
669    
670 tony 143 function TFBAttachment.GetAuthenticationMethod: AnsiString;
671     begin
672     Result := FAuthMethod;
673     end;
674    
675 tony 209 function TFBAttachment.GetSecurityDatabase: AnsiString;
676     begin
677     Result := FSecDatabase;
678     end;
679    
680 tony 117 function TFBAttachment.GetODSMajorVersion: integer;
681     begin
682     Result := FODSMajorVersion;
683     end;
684    
685     function TFBAttachment.GetODSMinorVersion: integer;
686     begin
687     Result := FODSMinorVersion;
688     end;
689    
690 tony 109 function TFBAttachment.HasDefaultCharSet: boolean;
691     begin
692     Result := FHasDefaultCharSet
693     end;
694    
695     function TFBAttachment.GetDefaultCharSetID: integer;
696     begin
697     Result := FCharsetID;
698     end;
699    
700 tony 60 function TFBAttachment.GetCharsetName(CharSetID: integer): AnsiString;
701     var i: integer;
702     begin
703     Result := '';
704     if (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap)) and
705     (CharSetMap[CharSetID].CharSetID = CharSetID) then
706     begin
707     Result := CharSetMap[CharSetID].CharSetName;
708     Exit;
709     end;
710    
711     for i := 0 to Length(FUserCharSetMap) - 1 do
712     if FUserCharSetMap[i].CharSetID = CharSetID then
713     begin
714     Result := FUserCharSetMap[i].CharSetName;
715     Exit;
716     end;
717     end;
718    
719     function TFBAttachment.CharSetID2CodePage(CharSetID: integer;
720     var CodePage: TSystemCodePage): boolean;
721     var i: integer;
722     begin
723     Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap))
724     and (CharSetMap[CharSetID].CharSetID = CharSetID);
725     if Result then
726     begin
727     CodePage := CharSetMap[CharSetID].CodePage;
728     Result := true;
729     Exit;
730     end;
731    
732     for i := 0 to Length(FUserCharSetMap) - 1 do
733     if FUserCharSetMap[i].CharSetID = CharSetID then
734     begin
735     CodePage := FUserCharSetMap[i].CodePage;
736     Result := true;
737     Exit;
738     end;
739     end;
740    
741     function TFBAttachment.CodePage2CharSetID(CodePage: TSystemCodePage;
742     var CharSetID: integer): boolean;
743     var i: integer;
744     begin
745     Result := false;
746     for i := Low(CharSetMap) to High(CharSetMap) do
747     if (CharSetMap[i].AllowReverseLookup) and (CharSetMap[i].CodePage = CodePage) then
748     begin
749     CharSetID := CharSetMap[i].CharSetID;
750     Result := true;
751     Exit;
752     end;
753    
754     for i := 0 to Length(FUserCharSetMap) - 1 do
755     if (FUserCharSetMap[i].AllowReverseLookup) and (FUserCharSetMap[i].CodePage = CodePage) then
756     begin
757     CharSetID := FUserCharSetMap[i].CharSetID;
758     Result := true;
759     Exit;
760     end;
761     end;
762    
763     function TFBAttachment.CharSetName2CharSetID(CharSetName: AnsiString;
764     var CharSetID: integer): boolean;
765     var i: integer;
766     begin
767     Result := false;
768     for i := Low(CharSetMap) to High(CharSetMap) do
769 tony 233 if AnsiCompareText(CharSetMap[i].CharSetName, CharSetName) = 0 then
770 tony 60 begin
771     CharSetID := CharSetMap[i].CharSetID;
772     Result := true;
773     Exit;
774     end;
775    
776     for i := 0 to Length(FUserCharSetMap) - 1 do
777 tony 233 if AnsiCompareText(FUserCharSetMap[i].CharSetName, CharSetName) = 0 then
778 tony 60 begin
779     CharSetID := FUserCharSetMap[i].CharSetID;
780     Result := true;
781     Exit;
782     end;
783     end;
784    
785     function TFBAttachment.CharSetWidth(CharSetID: integer; var Width: integer
786     ): boolean;
787     var i: integer;
788     begin
789     Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap))
790     and (CharSetMap[CharSetID].CharSetID = CharSetID);
791     if Result then
792     begin
793     Width := CharSetMap[CharSetID].CharSetWidth;
794     Result := true;
795     Exit;
796     end;
797    
798     for i := 0 to Length(FUserCharSetMap) - 1 do
799     if FUserCharSetMap[i].CharSetID = CharSetID then
800     begin
801     Width := FUserCharSetMap[i].CharSetWidth;
802     Result := true;
803     Exit;
804     end;
805     end;
806    
807     const
808     sqlLookupCharSet = 'Select RDB$CHARACTER_SET_ID, RDB$BYTES_PER_CHARACTER From RDB$CHARACTER_SETS '+
809     'Where RDB$SYSTEM_FLAG = 0 and RDB$CHARACTER_SET_NAME = UPPER(?)';
810    
811     procedure TFBAttachment.RegisterCharSet(CharSetName: AnsiString;
812     CodePage: TSystemCodePage; AllowReverseLookup: boolean; out CharSetID: integer
813     );
814     var CharSets: IResultSet;
815     idx: integer;
816     begin
817     if CharSetName2CharSetID(CharSetName,CharSetID) then
818     IBError(ibxeCharacterSetExists,[CharSetName]);
819    
820     CharSets := OpenCursorAtStart(sqlLookupCharSet,[CharSetName]);
821     if CharSets.IsEof then
822     IBError(ibxeUnknownUserCharSet,[CharSetName]);
823    
824     idx := Length(FUserCharSetMap);
825     SetLength(FUserCharSetMap,idx+1);
826     FUserCharSetMap[idx].AllowReverseLookup := AllowReverseLookup;
827     FUserCharSetMap[idx].CharSetID := CharSets[0].AsInteger;
828     FUserCharSetMap[idx].CharSetName := AnsiUpperCase(CharSetName);
829     FUserCharSetMap[idx].CharSetWidth := CharSets[1].AsInteger;
830     FUserCharSetMap[idx].CodePage := CodePage;
831     CharSetID := CharSets[0].AsInteger;
832     end;
833    
834 tony 45 end.
835