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(* |
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* Firebird Interface (fbintf). The fbintf components provide a set of |
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* Pascal language bindings for the Firebird API. |
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* |
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* The contents of this file are subject to the Initial Developer's |
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* Public License Version 1.0 (the "License"); you may not use this |
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* file except in compliance with the License. You may obtain a copy |
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* of the License here: |
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* |
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* http://www.firebirdsql.org/index.php?op=doc&id=idpl |
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* |
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* Software distributed under the License is distributed on an "AS |
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or |
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* implied. See the License for the specific language governing rights |
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* and limitations under the License. |
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* |
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* The Initial Developer of the Original Code is Tony Whyman. |
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* |
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* The Original Code is (C) 2016 Tony Whyman, MWA Software |
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* (http://www.mwasoftware.co.uk). |
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* |
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* All Rights Reserved. |
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* |
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* Contributor(s): ______________________________________. |
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* |
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*) |
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unit FBAttachment; |
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{$IFDEF MSWINDOWS} |
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{$DEFINE WINDOWS} |
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{$ENDIF} |
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|
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{$IFDEF FPC} |
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{$mode delphi} |
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{$interfaces COM} |
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{$define HASREQEX} |
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{$ENDIF} |
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|
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interface |
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|
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uses |
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Classes, SysUtils, {$IFDEF WINDOWS} windows, {$ENDIF} IB, FBParamBlock, |
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FBActivityMonitor, FBClientAPI; |
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|
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type |
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TCharsetMap = record |
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CharsetID: integer; |
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CharSetName: AnsiString; |
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CharSetWidth: integer; |
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CodePage: TSystemCodePage; |
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AllowReverseLookup: boolean; {used to ensure that lookup of CP_UTF* does not return UNICODE_FSS} |
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end; |
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|
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{ TFBAttachment } |
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|
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TFBAttachment = class(TActivityHandler) |
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private |
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FDPB: IDPB; |
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FFirebirdAPI: IFirebirdAPI; |
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FODSMajorVersion: integer; |
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FODSMinorVersion: integer; |
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FUserCharSetMap: array of TCharSetMap; |
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FSecDatabase: AnsiString; |
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protected |
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FDatabaseName: AnsiString; |
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FRaiseExceptionOnConnectError: boolean; |
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FSQLDialect: integer; |
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FHasDefaultCharSet: boolean; |
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FCharSetID: integer; |
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FCodePage: TSystemCodePage; |
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FRemoteProtocol: AnsiString; |
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FAuthMethod: AnsiString; |
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constructor Create(api: TFBClientAPI; DatabaseName: AnsiString; DPB: IDPB; |
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RaiseExceptionOnConnectError: boolean); |
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procedure CheckHandle; virtual; abstract; |
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function GenerateCreateDatabaseSQL(DatabaseName: AnsiString; aDPB: IDPB): AnsiString; |
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procedure GetODSAndConnectionInfo; |
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function GetDBInfo(ReqBuffer: PByte; ReqBufLen: integer): IDBInformation; virtual; abstract; |
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function IsConnected: boolean; virtual; abstract; |
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procedure EndAllTransactions; |
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procedure DPBFromCreateSQL(CreateSQL: AnsiString); |
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procedure SetParameters(SQLParams: ISQLParams; params: array of const); |
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procedure UseServerICUChanged; virtual; |
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public |
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destructor Destroy; override; |
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function getFirebirdAPI: IFirebirdAPI; |
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function getDPB: IDPB; |
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function AllocateBPB: IBPB; |
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function AllocateDIRB: IDIRB; |
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function StartTransaction(TPB: array of byte; DefaultCompletion: TTransactionCompletion): ITransaction; overload; virtual; abstract; |
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function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion): ITransaction; overload; virtual; abstract; |
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procedure Disconnect(Force: boolean=false); virtual; abstract; |
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procedure ExecImmediate(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer); overload; virtual; abstract; |
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procedure ExecImmediate(TPB: array of byte; sql: AnsiString; aSQLDialect: integer); overload; |
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procedure ExecImmediate(transaction: ITransaction; sql: AnsiString); overload; |
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procedure ExecImmediate(TPB: array of byte; sql: AnsiString); overload; |
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function ExecuteSQL(TPB: array of byte; sql: AnsiString; SQLDialect: integer; params: array of const): IResults; overload; |
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function ExecuteSQL(transaction: ITransaction; sql: AnsiString; SQLDialect: integer; params: array of const): IResults; overload; |
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function ExecuteSQL(TPB: array of byte; sql: AnsiString; params: array of const): IResults; overload; |
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function ExecuteSQL(transaction: ITransaction; sql: AnsiString; params: array of const): IResults; overload; |
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function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IResultSet; overload; |
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function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; |
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params: array of const): IResultSet; overload; |
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function OpenCursor(transaction: ITransaction; sql: AnsiString): IResultSet; overload; |
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function OpenCursor(transaction: ITransaction; sql: AnsiString; |
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params: array of const): IResultSet; overload; |
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function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IResultSet; overload; |
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function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; |
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params: array of const): IResultSet; overload; |
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function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString): IResultSet; overload; |
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function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; |
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params: array of const): IResultSet; overload; |
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function OpenCursorAtStart(sql: AnsiString): IResultSet; overload; |
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function OpenCursorAtStart(sql: AnsiString; |
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params: array of const): IResultSet; overload; |
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function Prepare(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer): IStatement; overload; virtual; abstract; |
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function Prepare(transaction: ITransaction; sql: AnsiString): IStatement; overload; |
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function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString; |
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aSQLDialect: integer; GenerateParamNames: boolean=false; |
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CaseSensitiveParams: boolean = false): IStatement; overload; virtual; abstract; |
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function PrepareWithNamedParameters(transaction: ITransaction; sql: AnsiString; |
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GenerateParamNames: boolean=false; |
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CaseSensitiveParams: boolean = false): IStatement; overload; |
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function GetEventHandler(Events: TStrings): IEvents; overload; virtual; abstract; |
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function GetEventHandler(Event: AnsiString): IEvents; overload; |
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|
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function GetSQLDialect: integer; |
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function CreateBlob(transaction: ITransaction; RelationName, ColumnName: AnsiString; BPB: IBPB=nil): IBlob; overload; |
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function CreateBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BPB: IBPB=nil): IBlob; overload; virtual; abstract; |
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function OpenBlob(transaction: ITransaction; BlobMetaData: IBlobMetaData; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload; virtual; abstract; |
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function OpenBlob(transaction: ITransaction; RelationName, ColumnName: AnsiString; BlobID: TISC_QUAD; BPB: IBPB=nil): IBlob; overload; |
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function OpenBlob(transaction: ITransaction; Field: ISQLData; BPB: IBPB=nil): IBlob; overload; |
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function CreateArray(transaction: ITransaction; RelationName, ColumnName: AnsiString |
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): IArray; overload; |
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function CreateArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData): IArray; overload; virtual; abstract; |
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function OpenArray(transaction: ITransaction; RelationName, ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray; overload; |
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function OpenArray(transaction: ITransaction; ArrayMetaData: IArrayMetaData; ArrayID: TISC_QUAD): IArray; overload; virtual; abstract; |
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property SQLDialect: integer read FSQLDialect; |
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property DPB: IDPB read FDPB; |
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public |
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function GetDBInformation(Requests: array of byte): IDBInformation; overload; |
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function GetDBInformation(Request: byte): IDBInformation; overload; |
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function GetDBInformation(Requests: IDIRB): IDBInformation; overload; |
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function GetConnectString: AnsiString; |
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function GetRemoteProtocol: AnsiString; |
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function GetAuthenticationMethod: AnsiString; |
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function GetSecurityDatabase: AnsiString; |
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function GetODSMajorVersion: integer; |
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function GetODSMinorVersion: integer; |
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function HasDecFloatSupport: boolean; virtual; |
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|
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public |
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{Character Sets} |
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function HasDefaultCharSet: boolean; |
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function GetDefaultCharSetID: integer; |
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function GetCharsetName(CharSetID: integer): AnsiString; |
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function CharSetID2CodePage(CharSetID: integer; var CodePage: TSystemCodePage): boolean; |
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function CodePage2CharSetID(CodePage: TSystemCodePage; var CharSetID: integer): boolean; |
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function CharSetName2CharSetID(CharSetName: AnsiString; var CharSetID: integer): boolean; |
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function CharSetWidth(CharSetID: integer; var Width: integer): boolean; |
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procedure RegisterCharSet(CharSetName: AnsiString; CodePage: TSystemCodePage; |
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AllowReverseLookup:boolean; out CharSetID: integer); |
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function GetBlobMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IBlobMetaData; virtual; abstract; |
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function GetArrayMetaData(Transaction: ITransaction; tableName, columnName: AnsiString): IArrayMetaData; virtual; abstract; |
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property CharSetID: integer read FCharSetID; |
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property CodePage: TSystemCodePage read FCodePage; |
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|
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public |
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{Time Zone Support} |
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function GetTimeZoneServices: ITimeZoneServices; virtual; |
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function HasTimeZoneSupport: boolean; virtual; |
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|
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end; |
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|
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{ TDPBItem } |
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|
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TDPBItem = class(TParamBlockItem,IDPBItem) |
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public |
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function getParamTypeName: AnsiString; override; |
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end; |
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|
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{ TDPB } |
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|
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TDPB = class (TCustomParamBlock<TDPBItem,IDPBItem>, IDPB) |
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protected |
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function LookupItemType(ParamTypeName: AnsiString): byte; override; |
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public |
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constructor Create(api: TFBClientAPI); |
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function GetDPBParamTypeName(ParamType: byte): Ansistring; |
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end; |
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|
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implementation |
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|
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uses FBMessages, IBUtils, FBTransaction {$IFDEF HASREQEX}, RegExpr{$ENDIF}; |
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|
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const |
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CharSetMap: array [0..69] of TCharsetMap = ( |
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(CharsetID: 0; CharSetName: 'NONE'; CharSetWidth: 1; CodePage: CP_ACP; AllowReverseLookup: true), |
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(CharsetID: 1; CharSetName: 'OCTETS'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true), |
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(CharsetID: 2; CharSetName: 'ASCII'; CharSetWidth: 1; CodePage: CP_ASCII; AllowReverseLookup: true), |
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(CharsetID: 3; CharSetName: 'UNICODE_FSS'; CharSetWidth: 3; CodePage: CP_UTF8; AllowReverseLookup: false), |
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(CharsetID: 4; CharSetName: 'UTF8'; CharSetWidth: 4; CodePage: CP_UTF8; AllowReverseLookup: true), |
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(CharsetID: 5; CharSetName: 'SJIS_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true), |
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(CharsetID: 6; CharSetName: 'EUCJ_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true), |
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(CharsetID: 7; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true), |
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(CharsetID: 8; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true), |
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(CharsetID: 9; CharSetName: 'DOS737'; CharSetWidth: 1; CodePage: 737; AllowReverseLookup: true), |
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(CharsetID: 10; CharSetName: 'DOS437'; CharSetWidth: 1; CodePage: 437; AllowReverseLookup: true), |
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(CharsetID: 11; CharSetName: 'DOS850'; CharSetWidth: 1; CodePage: 850; AllowReverseLookup: true), |
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(CharsetID: 12; CharSetName: 'DOS865'; CharSetWidth: 1; CodePage: 865; AllowReverseLookup: true), |
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(CharsetID: 13; CharSetName: 'DOS860'; CharSetWidth: 1; CodePage: 860; AllowReverseLookup: true), |
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(CharsetID: 14; CharSetName: 'DOS863'; CharSetWidth: 1; CodePage: 863; AllowReverseLookup: true), |
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(CharsetID: 15; CharSetName: 'DOS775'; CharSetWidth: 1; CodePage: 775; AllowReverseLookup: true), |
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(CharsetID: 16; CharSetName: 'DOS858'; CharSetWidth: 1; CodePage: 858; AllowReverseLookup: true), |
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(CharsetID: 17; CharSetName: 'DOS862'; CharSetWidth: 1; CodePage: 862; AllowReverseLookup: true), |
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(CharsetID: 18; CharSetName: 'DOS864'; CharSetWidth: 1; CodePage: 864; AllowReverseLookup: true), |
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(CharsetID: 19; CharSetName: 'NEXT'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true), |
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(CharsetID: 20; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true), |
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(CharsetID: 21; CharSetName: 'ISO8859_1'; CharSetWidth: 1; CodePage: 28591; AllowReverseLookup: true), |
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(CharsetID: 22; CharSetName: 'ISO8859_2'; CharSetWidth: 1; CodePage: 28592; AllowReverseLookup: true), |
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(CharsetID: 23; CharSetName: 'ISO8859_3'; CharSetWidth: 1; CodePage: 28593; AllowReverseLookup: true), |
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(CharsetID: 24; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
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(CharsetID: 25; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
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(CharsetID: 26; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
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(CharsetID: 27; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
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(CharsetID: 28; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
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(CharsetID: 29; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
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(CharsetID: 30; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
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(CharsetID: 31; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
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(CharsetID: 32; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
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(CharsetID: 33; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
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(CharsetID: 34; CharSetName: 'ISO8859_4'; CharSetWidth: 1; CodePage: 28594; AllowReverseLookup: true), |
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(CharsetID: 35; CharSetName: 'ISO8859_5'; CharSetWidth: 1; CodePage: 28595; AllowReverseLookup: true), |
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(CharsetID: 36; CharSetName: 'ISO8859_6'; CharSetWidth: 1; CodePage: 28596; AllowReverseLookup: true), |
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(CharsetID: 37; CharSetName: 'ISO8859_7'; CharSetWidth: 1; CodePage: 28597; AllowReverseLookup: true), |
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(CharsetID: 38; CharSetName: 'ISO8859_8'; CharSetWidth: 1; CodePage: 28598; AllowReverseLookup: true), |
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(CharsetID: 39; CharSetName: 'ISO8859_9'; CharSetWidth: 1; CodePage: 28599; AllowReverseLookup: true), |
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(CharsetID: 40; CharSetName: 'ISO8859_13'; CharSetWidth: 1; CodePage: 28603; AllowReverseLookup: true), |
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(CharsetID: 41; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
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(CharsetID: 42; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
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(CharsetID: 43; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
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(CharsetID: 44; CharSetName: 'KSC_5601'; CharSetWidth: 2; CodePage: 949; AllowReverseLookup: true), |
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(CharsetID: 45; CharSetName: 'DOS852'; CharSetWidth: 1; CodePage: 852; AllowReverseLookup: true), |
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(CharsetID: 46; CharSetName: 'DOS857'; CharSetWidth: 1; CodePage: 857; AllowReverseLookup: true), |
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(CharsetID: 47; CharSetName: 'DOS861'; CharSetWidth: 1; CodePage: 861; AllowReverseLookup: true), |
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(CharsetID: 48; CharSetName: 'DOS866'; CharSetWidth: 1; CodePage: 866; AllowReverseLookup: true), |
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(CharsetID: 49; CharSetName: 'DOS869'; CharSetWidth: 1; CodePage: 869; AllowReverseLookup: true), |
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(CharsetID: 50; CharSetName: 'CYRL'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true), |
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(CharsetID: 51; CharSetName: 'WIN1250'; CharSetWidth: 1; CodePage: 1250; AllowReverseLookup: true), |
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(CharsetID: 52; CharSetName: 'WIN1251'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true), |
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(CharsetID: 53; CharSetName: 'WIN1252'; CharSetWidth: 1; CodePage: 1252; AllowReverseLookup: true), |
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(CharsetID: 54; CharSetName: 'WIN1253'; CharSetWidth: 1; CodePage: 1253; AllowReverseLookup: true), |
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(CharsetID: 55; CharSetName: 'WIN1254'; CharSetWidth: 1; CodePage: 1254; AllowReverseLookup: true), |
| 253 |
(CharsetID: 56; CharSetName: 'BIG_5'; CharSetWidth: 2; CodePage: 950; AllowReverseLookup: true), |
| 254 |
(CharsetID: 57; CharSetName: 'GB_2312'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true), |
| 255 |
(CharsetID: 58; CharSetName: 'WIN1255'; CharSetWidth: 1; CodePage: 1255; AllowReverseLookup: true), |
| 256 |
(CharsetID: 59; CharSetName: 'WIN1256'; CharSetWidth: 1; CodePage: 1256; AllowReverseLookup: true), |
| 257 |
(CharsetID: 60; CharSetName: 'WIN1257'; CharSetWidth: 1; CodePage: 1257; AllowReverseLookup: true), |
| 258 |
(CharsetID: 61; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
| 259 |
(CharsetID: 62; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false), |
| 260 |
(CharsetID: 63; CharSetName: 'KOI8R'; CharSetWidth: 1; CodePage: 20866; AllowReverseLookup: true), |
| 261 |
(CharsetID: 64; CharSetName: 'KOI8U'; CharSetWidth: 1; CodePage: 21866; AllowReverseLookup: true), |
| 262 |
(CharsetID: 65; CharSetName: 'WIN1258'; CharSetWidth: 1; CodePage: 1258; AllowReverseLookup: true), |
| 263 |
(CharsetID: 66; CharSetName: 'TIS620'; CharSetWidth: 1; CodePage: 874; AllowReverseLookup: true), |
| 264 |
(CharsetID: 67; CharSetName: 'GBK'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true), |
| 265 |
(CharsetID: 68; CharSetName: 'CP943C'; CharSetWidth: 2; CodePage: 943; AllowReverseLookup: true), |
| 266 |
(CharsetID: 69; CharSetName: 'GB18030'; CharSetWidth: 4; CodePage: 54936; AllowReverseLookup: true) |
| 267 |
); |
| 268 |
|
| 269 |
const |
| 270 |
isc_dpb_last_dpb_constant = isc_dpb_decfloat_traps; |
| 271 |
|
| 272 |
DPBConstantNames: array[1..isc_dpb_last_dpb_constant] of string = ( |
| 273 |
'cdd_pathname', |
| 274 |
'allocation', |
| 275 |
'journal', |
| 276 |
'page_size', |
| 277 |
'num_buffers', |
| 278 |
'buffer_length', |
| 279 |
'debug', |
| 280 |
'garbage_collect', |
| 281 |
'verify', |
| 282 |
'sweep', |
| 283 |
'enable_journal', |
| 284 |
'disable_journal', |
| 285 |
'dbkey_scope', |
| 286 |
'number_of_users', |
| 287 |
'trace', |
| 288 |
'no_garbage_collect', |
| 289 |
'damaged', |
| 290 |
'license', |
| 291 |
'sys_user_name', |
| 292 |
'encrypt_key', |
| 293 |
'activate_shadow', |
| 294 |
'sweep_interval', |
| 295 |
'delete_shadow', |
| 296 |
'force_write', |
| 297 |
'begin_log', |
| 298 |
'quit_log', |
| 299 |
'no_reserve', |
| 300 |
'user_name', |
| 301 |
'password', |
| 302 |
'password_enc', |
| 303 |
'sys_user_name_enc', |
| 304 |
'interp', |
| 305 |
'online_dump', |
| 306 |
'old_file_size', |
| 307 |
'old_num_files', |
| 308 |
'old_file', |
| 309 |
'old_start_page', |
| 310 |
'old_start_seqno', |
| 311 |
'old_start_file', |
| 312 |
'drop_walfile', |
| 313 |
'old_dump_id', |
| 314 |
'wal_backup_dir', |
| 315 |
'wal_chkptlen', |
| 316 |
'wal_numbufs', |
| 317 |
'wal_bufsize', |
| 318 |
'wal_grp_cmt_wait', |
| 319 |
'lc_messages', |
| 320 |
'lc_ctype', |
| 321 |
'cache_manager', |
| 322 |
'shutdown', |
| 323 |
'online', |
| 324 |
'shutdown_delay', |
| 325 |
'reserved', |
| 326 |
'overwrite', |
| 327 |
'sec_attach', |
| 328 |
'disable_wal', |
| 329 |
'connect_timeout', |
| 330 |
'dummy_packet_interval', |
| 331 |
'gbak_attach', |
| 332 |
'sql_role_name', |
| 333 |
'set_page_buffers', |
| 334 |
'working_directory', |
| 335 |
'sql_dialect', |
| 336 |
'set_db_readonly', |
| 337 |
'set_db_sql_dialect', |
| 338 |
'gfix_attach', |
| 339 |
'gstat_attach', |
| 340 |
'set_db_charset', |
| 341 |
'gsec_attach', |
| 342 |
'address_path' , |
| 343 |
'process_id', |
| 344 |
'no_db_triggers', |
| 345 |
'trusted_auth', |
| 346 |
'process_name', |
| 347 |
'trusted_role', |
| 348 |
'org_filename', |
| 349 |
'utf8_ilename', |
| 350 |
'ext_call_depth', |
| 351 |
'auth_block', |
| 352 |
'client_version', |
| 353 |
'remote_protocol', |
| 354 |
'host_name', |
| 355 |
'os_user', |
| 356 |
'specific_auth_data', |
| 357 |
'auth_plugin_list', |
| 358 |
'auth_plugin_name', |
| 359 |
'config', |
| 360 |
'nolinger', |
| 361 |
'reset_icu', |
| 362 |
'map_attach', |
| 363 |
'session_time_zone', |
| 364 |
'set_db_replica', |
| 365 |
'set_bind', |
| 366 |
'decfloat_round', |
| 367 |
'decfloat_traps' |
| 368 |
); |
| 369 |
|
| 370 |
|
| 371 |
|
| 372 |
{ TFBAttachment } |
| 373 |
|
| 374 |
procedure TFBAttachment.GetODSAndConnectionInfo; |
| 375 |
var DBInfo: IDBInformation; |
| 376 |
i: integer; |
| 377 |
Stmt: IStatement; |
| 378 |
ResultSet: IResultSet; |
| 379 |
Param: IDPBItem; |
| 380 |
begin |
| 381 |
if not IsConnected then Exit; |
| 382 |
DBInfo := GetDBInformation([isc_info_db_id,isc_info_ods_version,isc_info_ods_minor_version, |
| 383 |
isc_info_db_SQL_Dialect]); |
| 384 |
for i := 0 to DBInfo.GetCount - 1 do |
| 385 |
with DBInfo[i] do |
| 386 |
case getItemType of |
| 387 |
isc_info_ods_minor_version: |
| 388 |
FODSMinorVersion := getAsInteger; |
| 389 |
isc_info_ods_version: |
| 390 |
FODSMajorVersion := getAsInteger; |
| 391 |
isc_info_db_SQL_Dialect: |
| 392 |
FSQLDialect := getAsInteger; |
| 393 |
end; |
| 394 |
|
| 395 |
FCharSetID := 0; |
| 396 |
FRemoteProtocol := ''; |
| 397 |
FAuthMethod := 'Legacy_Auth'; |
| 398 |
FSecDatabase := 'Default'; |
| 399 |
if FODSMajorVersion > 11 then |
| 400 |
begin |
| 401 |
Stmt := Prepare(StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit), |
| 402 |
'Select MON$CHARACTER_SET_ID, MON$REMOTE_PROTOCOL, MON$AUTH_METHOD, MON$SEC_DATABASE From MON$ATTACHMENTS, MON$DATABASE '+ |
| 403 |
'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION '); |
| 404 |
ResultSet := Stmt.OpenCursor; |
| 405 |
if ResultSet.FetchNext then |
| 406 |
begin |
| 407 |
FCharSetID := ResultSet[0].AsInteger; |
| 408 |
FRemoteProtocol := Trim(ResultSet[1].AsString); |
| 409 |
FAuthMethod := Trim(ResultSet[2].AsString); |
| 410 |
FSecDatabase := Trim(ResultSet[3].AsString); |
| 411 |
end |
| 412 |
end |
| 413 |
else |
| 414 |
if (FODSMajorVersion = 11) and (FODSMinorVersion >= 1) then |
| 415 |
begin |
| 416 |
Stmt := Prepare(StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit), |
| 417 |
'Select MON$CHARACTER_SET_ID, MON$REMOTE_PROTOCOL From MON$ATTACHMENTS '+ |
| 418 |
'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION'); |
| 419 |
ResultSet := Stmt.OpenCursor; |
| 420 |
if ResultSet.FetchNext then |
| 421 |
begin |
| 422 |
FCharSetID := ResultSet[0].AsInteger; |
| 423 |
FRemoteProtocol := Trim(ResultSet[1].AsString); |
| 424 |
end |
| 425 |
end |
| 426 |
else |
| 427 |
if DPB <> nil then |
| 428 |
begin |
| 429 |
Param := DPB.Find(isc_dpb_lc_ctype); |
| 430 |
if (Param = nil) or not CharSetName2CharSetID(Param.AsString,FCharSetID) then |
| 431 |
FCharSetID := 0; |
| 432 |
case GetProtocol(FDatabaseName) of |
| 433 |
TCP: FRemoteProtocol := 'TCPv4'; |
| 434 |
Local: FRemoteProtocol := ''; |
| 435 |
NamedPipe: FRemoteProtocol := 'Netbui'; |
| 436 |
SPX: FRemoteProtocol := 'SPX' |
| 437 |
end; |
| 438 |
end; |
| 439 |
FHasDefaultCharSet := CharSetID2CodePage(FCharSetID,FCodePage) and (FCharSetID > 1); |
| 440 |
end; |
| 441 |
|
| 442 |
constructor TFBAttachment.Create(api: TFBClientAPI; DatabaseName: AnsiString; |
| 443 |
DPB: IDPB; RaiseExceptionOnConnectError: boolean); |
| 444 |
begin |
| 445 |
inherited Create; |
| 446 |
FFirebirdAPI := api.GetAPI; {Keep reference to interface} |
| 447 |
FSQLDialect := 3; |
| 448 |
FDatabaseName := DatabaseName; |
| 449 |
FDPB := DPB; |
| 450 |
SetLength(FUserCharSetMap,0); |
| 451 |
FRaiseExceptionOnConnectError := RaiseExceptionOnConnectError; |
| 452 |
FODSMajorVersion := 0; |
| 453 |
FODSMinorVersion := 0; |
| 454 |
end; |
| 455 |
|
| 456 |
function TFBAttachment.GenerateCreateDatabaseSQL(DatabaseName: AnsiString; aDPB: IDPB): AnsiString; |
| 457 |
var CreateParams: AnsiString; |
| 458 |
DPBItem: IDPBItem; |
| 459 |
begin |
| 460 |
CreateParams := ''; |
| 461 |
|
| 462 |
if aDPB <> nil then |
| 463 |
begin |
| 464 |
DPBItem := aDPB.Find(isc_dpb_user_name); |
| 465 |
if DPBItem <> nil then |
| 466 |
CreateParams := CreateParams + ' USER ''' + DPBItem.AsString + ''''; |
| 467 |
|
| 468 |
DPBItem := aDPB.Find(isc_dpb_password); |
| 469 |
if DPBItem <> nil then |
| 470 |
CreateParams := CreateParams + ' Password ''' + DPBItem.AsString + ''''; |
| 471 |
|
| 472 |
DPBItem := aDPB.Find(isc_dpb_page_size); |
| 473 |
if DPBItem <> nil then |
| 474 |
CreateParams := CreateParams + ' PAGE_SIZE ' + DPBItem.AsString; |
| 475 |
|
| 476 |
DPBItem := aDPB.Find(isc_dpb_lc_ctype); |
| 477 |
if DPBItem <> nil then |
| 478 |
CreateParams := CreateParams + ' DEFAULT CHARACTER SET ' + DPBItem.AsString; |
| 479 |
|
| 480 |
DPBItem := aDPB.Find(isc_dpb_sql_dialect); |
| 481 |
if DPBItem <> nil then |
| 482 |
FSQLDialect := DPBItem.AsInteger; |
| 483 |
end; |
| 484 |
|
| 485 |
Result := 'CREATE DATABASE ''' + DatabaseName + ''' ' + CreateParams; {do not localize} |
| 486 |
end; |
| 487 |
|
| 488 |
procedure TFBAttachment.EndAllTransactions; |
| 489 |
var i: integer; |
| 490 |
intf: TInterfacedObject; |
| 491 |
begin |
| 492 |
for i := 0 to InterfaceCount - 1 do |
| 493 |
begin |
| 494 |
intf := GetInterface(i); |
| 495 |
if (intf <> nil) and (intf is TFBTransaction) then |
| 496 |
TFBTransaction(intf).DoDefaultTransactionEnd(true); |
| 497 |
end; |
| 498 |
end; |
| 499 |
|
| 500 |
{$IFDEF HASREQEX} |
| 501 |
procedure TFBAttachment.DPBFromCreateSQL(CreateSQL: AnsiString); |
| 502 |
var RegexObj: TRegExpr; |
| 503 |
begin |
| 504 |
FDPB := FFirebirdAPI.AllocateDPB; |
| 505 |
RegexObj := TRegExpr.Create; |
| 506 |
try |
| 507 |
{extact database file spec} |
| 508 |
RegexObj.ModifierG := false; {turn off greedy matches} |
| 509 |
RegexObj.ModifierI := true; {case insensitive match} |
| 510 |
RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +''.*'' +USER +''(.+)'' PASSWORD +''(.+)'''; |
| 511 |
if RegexObj.Exec(CreateSQL) then |
| 512 |
begin |
| 513 |
DPB.Add(isc_dpb_user_name).AsString := system.copy(CreateSQL,RegexObj.MatchPos[2],RegexObj.MatchLen[2]); |
| 514 |
DPB.Add(isc_dpb_password).AsString := system.copy(CreateSQL,RegexObj.MatchPos[3],RegexObj.MatchLen[3]); |
| 515 |
end |
| 516 |
else |
| 517 |
begin |
| 518 |
RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +(''.*'') +USER +''(.+)'''; |
| 519 |
if RegexObj.Exec(CreateSQL) then |
| 520 |
DPB.Add(isc_dpb_user_name).AsString := system.copy(CreateSQL,RegexObj.MatchPos[2],RegexObj.MatchLen[2]); |
| 521 |
end; |
| 522 |
finally |
| 523 |
RegexObj.Free; |
| 524 |
end; |
| 525 |
if FCharSetID > 0 then |
| 526 |
DPB.Add(isc_dpb_lc_ctype).AsString := GetCharSetName(FCharSetID); |
| 527 |
DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(FSQLDialect); |
| 528 |
end; |
| 529 |
{$ELSE} |
| 530 |
procedure TFBAttachment.DPBFromCreateSQL(CreateSQL: AnsiString); |
| 531 |
begin |
| 532 |
FDPB := FFirebirdAPI.AllocateDPB; |
| 533 |
if FCharSetID > 0 then |
| 534 |
DPB.Add(isc_dpb_lc_ctype).AsString := GetCharSetName(FCharSetID); |
| 535 |
DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(FSQLDialect); |
| 536 |
end; |
| 537 |
{$ENDIF} |
| 538 |
|
| 539 |
procedure TFBAttachment.SetParameters(SQLParams: ISQLParams; |
| 540 |
params: array of const); |
| 541 |
var i: integer; |
| 542 |
begin |
| 543 |
if SQLParams.Count <> Length(params) then |
| 544 |
IBError(ibxeInvalidParamCount,[SQLParams.Count,Length(params)]); |
| 545 |
|
| 546 |
for i := 0 to High(params) do |
| 547 |
begin |
| 548 |
case params[i].vtype of |
| 549 |
vtinteger : |
| 550 |
SQLParams[i].AsInteger := params[i].vinteger; |
| 551 |
vtInt64: |
| 552 |
SQLParams[i].AsInt64 := params[i].VInt64^; |
| 553 |
{$IF declared (vtQWord)} |
| 554 |
vtQWord: |
| 555 |
SQLParams[i].AsInt64 := params[i].VQWord^; |
| 556 |
{$IFEND} |
| 557 |
vtboolean : |
| 558 |
SQLParams[i].AsBoolean := params[i].vboolean; |
| 559 |
vtchar : |
| 560 |
SQLParams[i].AsString := params[i].vchar; |
| 561 |
vtextended : |
| 562 |
SQLParams[i].AsDouble := params[i].VExtended^; |
| 563 |
vtCurrency: |
| 564 |
SQLParams[i].AsDouble := params[i].VCurrency^; |
| 565 |
vtString : |
| 566 |
SQLParams[i].AsString := strpas(PChar(params[i].VString)); |
| 567 |
vtPChar : |
| 568 |
SQLParams[i].AsString := strpas(params[i].VPChar); |
| 569 |
vtAnsiString : |
| 570 |
SQLParams[i].AsString := strpas(PAnsiChar(params[i].VAnsiString)); |
| 571 |
vtVariant: |
| 572 |
SQLParams[i].AsVariant := params[i].VVariant^; |
| 573 |
vtWideChar: |
| 574 |
SQLParams[i].AsString := UTF8Encode(WideCharLenToString(@params[i].VWideChar,1)); |
| 575 |
vtPWideChar: |
| 576 |
SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VPWideChar))); |
| 577 |
vtWideString: |
| 578 |
SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VWideString))); |
| 579 |
vtUnicodeString: |
| 580 |
SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VUnicodeString))); |
| 581 |
else |
| 582 |
IBError(ibxeInvalidVariantType,[nil]); |
| 583 |
end; |
| 584 |
end; |
| 585 |
end; |
| 586 |
|
| 587 |
procedure TFBAttachment.UseServerICUChanged; |
| 588 |
begin |
| 589 |
// Do nothing by default |
| 590 |
end; |
| 591 |
|
| 592 |
destructor TFBAttachment.Destroy; |
| 593 |
begin |
| 594 |
Disconnect(true); |
| 595 |
inherited Destroy; |
| 596 |
end; |
| 597 |
|
| 598 |
function TFBAttachment.getFirebirdAPI: IFirebirdAPI; |
| 599 |
begin |
| 600 |
Result := FFirebirdAPI; |
| 601 |
end; |
| 602 |
|
| 603 |
function TFBAttachment.getDPB: IDPB; |
| 604 |
begin |
| 605 |
Result := FDPB; |
| 606 |
end; |
| 607 |
|
| 608 |
function TFBAttachment.AllocateBPB: IBPB; |
| 609 |
begin |
| 610 |
Result := TBPB.Create(FFirebirdAPI as TFBClientAPI); |
| 611 |
end; |
| 612 |
|
| 613 |
function TFBAttachment.AllocateDIRB: IDIRB; |
| 614 |
begin |
| 615 |
Result := TDIRB.Create(FFirebirdAPI as TFBClientAPI); |
| 616 |
end; |
| 617 |
|
| 618 |
procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString; |
| 619 |
aSQLDialect: integer); |
| 620 |
begin |
| 621 |
ExecImmediate(StartTransaction(TPB,taCommit),sql,aSQLDialect); |
| 622 |
end; |
| 623 |
|
| 624 |
procedure TFBAttachment.ExecImmediate(transaction: ITransaction; sql: AnsiString); |
| 625 |
begin |
| 626 |
ExecImmediate(transaction,sql,FSQLDialect); |
| 627 |
end; |
| 628 |
|
| 629 |
procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString); |
| 630 |
begin |
| 631 |
ExecImmediate(StartTransaction(TPB,taCommit),sql,FSQLDialect); |
| 632 |
end; |
| 633 |
|
| 634 |
function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString; |
| 635 |
SQLDialect: integer; params: array of const): IResults; |
| 636 |
begin |
| 637 |
Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,SQLDialect,params); |
| 638 |
end; |
| 639 |
|
| 640 |
function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString; |
| 641 |
SQLDialect: integer; params: array of const): IResults; |
| 642 |
begin |
| 643 |
with Prepare(transaction,sql,SQLDialect) do |
| 644 |
begin |
| 645 |
SetParameters(SQLParams,params); |
| 646 |
Result := Execute; |
| 647 |
end; |
| 648 |
end; |
| 649 |
|
| 650 |
function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString; |
| 651 |
params: array of const): IResults; |
| 652 |
begin |
| 653 |
Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,params); |
| 654 |
end; |
| 655 |
|
| 656 |
function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString; |
| 657 |
params: array of const): IResults; |
| 658 |
begin |
| 659 |
with Prepare(transaction,sql,FSQLDialect) do |
| 660 |
begin |
| 661 |
SetParameters(SQLParams,params); |
| 662 |
Result := Execute; |
| 663 |
end; |
| 664 |
end; |
| 665 |
|
| 666 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString; |
| 667 |
aSQLDialect: integer): IResultSet; |
| 668 |
begin |
| 669 |
Result := OpenCursor(transaction,sql,aSQLDialect,[]); |
| 670 |
end; |
| 671 |
|
| 672 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString; |
| 673 |
aSQLDialect: integer; params: array of const): IResultSet; |
| 674 |
var Statement: IStatement; |
| 675 |
begin |
| 676 |
CheckHandle; |
| 677 |
Statement := Prepare(transaction,sql,aSQLDialect); |
| 678 |
SetParameters(Statement.SQLParams,params); |
| 679 |
Result := Statement.OpenCursor; |
| 680 |
end; |
| 681 |
|
| 682 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString |
| 683 |
): IResultSet; |
| 684 |
begin |
| 685 |
Result := OpenCursor(transaction,sql,FSQLDialect,[]); |
| 686 |
end; |
| 687 |
|
| 688 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString; |
| 689 |
params: array of const): IResultSet; |
| 690 |
begin |
| 691 |
Result := OpenCursor(transaction,sql,FSQLDialect,params); |
| 692 |
end; |
| 693 |
|
| 694 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; |
| 695 |
sql: AnsiString; aSQLDialect: integer): IResultSet; |
| 696 |
begin |
| 697 |
Result := OpenCursor(transaction,sql,aSQLDialect,[]); |
| 698 |
Result.FetchNext; |
| 699 |
end; |
| 700 |
|
| 701 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; |
| 702 |
sql: AnsiString; aSQLDialect: integer; params: array of const): IResultSet; |
| 703 |
begin |
| 704 |
Result := OpenCursor(transaction,sql,aSQLDialect,params); |
| 705 |
Result.FetchNext; |
| 706 |
end; |
| 707 |
|
| 708 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; sql: AnsiString |
| 709 |
): IResultSet; |
| 710 |
begin |
| 711 |
Result := OpenCursorAtStart(transaction,sql,FSQLDialect,[]); |
| 712 |
end; |
| 713 |
|
| 714 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction; |
| 715 |
sql: AnsiString; params: array of const): IResultSet; |
| 716 |
begin |
| 717 |
Result := OpenCursorAtStart(transaction,sql,FSQLDialect,params); |
| 718 |
end; |
| 719 |
|
| 720 |
function TFBAttachment.OpenCursorAtStart(sql: AnsiString): IResultSet; |
| 721 |
begin |
| 722 |
Result := OpenCursorAtStart(sql,[]); |
| 723 |
end; |
| 724 |
|
| 725 |
function TFBAttachment.OpenCursorAtStart(sql: AnsiString; |
| 726 |
params: array of const): IResultSet; |
| 727 |
begin |
| 728 |
Result := OpenCursorAtStart(StartTransaction([isc_tpb_read,isc_tpb_wait,isc_tpb_concurrency],taCommit),sql,FSQLDialect,params); |
| 729 |
end; |
| 730 |
|
| 731 |
function TFBAttachment.Prepare(transaction: ITransaction; sql: AnsiString |
| 732 |
): IStatement; |
| 733 |
begin |
| 734 |
Result := Prepare(transaction,sql,FSQLDialect); |
| 735 |
end; |
| 736 |
|
| 737 |
function TFBAttachment.PrepareWithNamedParameters(transaction: ITransaction; |
| 738 |
sql: AnsiString; GenerateParamNames: boolean; CaseSensitiveParams: boolean): IStatement; |
| 739 |
begin |
| 740 |
Result := PrepareWithNamedParameters(transaction,sql,FSQLDialect,GenerateParamNames,CaseSensitiveParams); |
| 741 |
end; |
| 742 |
|
| 743 |
function TFBAttachment.GetEventHandler(Event: AnsiString): IEvents; |
| 744 |
var S: TStringList; |
| 745 |
begin |
| 746 |
S := TStringList.Create; |
| 747 |
try |
| 748 |
S.Add(Event); |
| 749 |
Result := GetEventHandler(S); |
| 750 |
finally |
| 751 |
S.Free; |
| 752 |
end; |
| 753 |
end; |
| 754 |
|
| 755 |
function TFBAttachment.GetSQLDialect: integer; |
| 756 |
begin |
| 757 |
Result := FSQLDialect; |
| 758 |
end; |
| 759 |
|
| 760 |
function TFBAttachment.CreateBlob(transaction: ITransaction; RelationName, |
| 761 |
ColumnName: AnsiString; BPB: IBPB): IBlob; |
| 762 |
begin |
| 763 |
Result := CreateBlob(transaction,GetBlobMetaData(Transaction,RelationName,ColumnName),BPB); |
| 764 |
end; |
| 765 |
|
| 766 |
function TFBAttachment.OpenBlob(transaction: ITransaction; RelationName, |
| 767 |
ColumnName: AnsiString; BlobID: TISC_QUAD; BPB: IBPB): IBlob; |
| 768 |
begin |
| 769 |
Result := OpenBlob(Transaction, |
| 770 |
GetBlobMetaData(Transaction,RelationName,ColumnName), |
| 771 |
BlobID,BPB); |
| 772 |
end; |
| 773 |
|
| 774 |
function TFBAttachment.OpenBlob(transaction: ITransaction; Field: ISQLData; |
| 775 |
BPB: IBPB): IBlob; |
| 776 |
begin |
| 777 |
Result := OpenBlob(Transaction,Field.GetBlobMetadata, Field.AsQuad,BPB); |
| 778 |
end; |
| 779 |
|
| 780 |
function TFBAttachment.CreateArray(transaction: ITransaction; RelationName, |
| 781 |
ColumnName: AnsiString): IArray; |
| 782 |
begin |
| 783 |
Result := CreateArray(transaction,GetArrayMetaData(transaction,RelationName,ColumnName)); |
| 784 |
end; |
| 785 |
|
| 786 |
function TFBAttachment.OpenArray(transaction: ITransaction; RelationName, |
| 787 |
ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray; |
| 788 |
begin |
| 789 |
Result := OpenArray(transaction, |
| 790 |
GetArrayMetaData(transaction,RelationName,ColumnName),ArrayID); |
| 791 |
end; |
| 792 |
|
| 793 |
function TFBAttachment.GetDBInformation(Requests: array of byte |
| 794 |
): IDBInformation; |
| 795 |
var ReqBuffer: PByte; |
| 796 |
i: integer; |
| 797 |
begin |
| 798 |
CheckHandle; |
| 799 |
if Length(Requests) = 1 then |
| 800 |
Result := GetDBInformation(Requests[0]) |
| 801 |
else |
| 802 |
begin |
| 803 |
GetMem(ReqBuffer,Length(Requests)); |
| 804 |
try |
| 805 |
for i := 0 to Length(Requests) - 1 do |
| 806 |
ReqBuffer[i] := Requests[i]; |
| 807 |
|
| 808 |
Result := GetDBInfo(ReqBuffer,Length(Requests)); |
| 809 |
|
| 810 |
finally |
| 811 |
FreeMem(ReqBuffer); |
| 812 |
end; |
| 813 |
end; |
| 814 |
end; |
| 815 |
|
| 816 |
function TFBAttachment.GetDBInformation(Request: byte): IDBInformation; |
| 817 |
begin |
| 818 |
CheckHandle; |
| 819 |
Result := GetDBInfo(@Request,1); |
| 820 |
end; |
| 821 |
|
| 822 |
function TFBAttachment.GetDBInformation(Requests: IDIRB): IDBInformation; |
| 823 |
begin |
| 824 |
CheckHandle; |
| 825 |
with Requests as TDIRB do |
| 826 |
Result := GetDBInfo(getBuffer,getDataLength); |
| 827 |
end; |
| 828 |
|
| 829 |
function TFBAttachment.GetConnectString: AnsiString; |
| 830 |
begin |
| 831 |
Result := FDatabaseName; |
| 832 |
end; |
| 833 |
|
| 834 |
function TFBAttachment.GetRemoteProtocol: AnsiString; |
| 835 |
begin |
| 836 |
Result := FRemoteProtocol; |
| 837 |
end; |
| 838 |
|
| 839 |
function TFBAttachment.GetAuthenticationMethod: AnsiString; |
| 840 |
begin |
| 841 |
Result := FAuthMethod; |
| 842 |
end; |
| 843 |
|
| 844 |
function TFBAttachment.GetSecurityDatabase: AnsiString; |
| 845 |
begin |
| 846 |
Result := FSecDatabase; |
| 847 |
end; |
| 848 |
|
| 849 |
function TFBAttachment.GetODSMajorVersion: integer; |
| 850 |
begin |
| 851 |
Result := FODSMajorVersion; |
| 852 |
end; |
| 853 |
|
| 854 |
function TFBAttachment.GetODSMinorVersion: integer; |
| 855 |
begin |
| 856 |
Result := FODSMinorVersion; |
| 857 |
end; |
| 858 |
|
| 859 |
function TFBAttachment.HasDecFloatSupport: boolean; |
| 860 |
begin |
| 861 |
Result := false; |
| 862 |
end; |
| 863 |
|
| 864 |
function TFBAttachment.HasDefaultCharSet: boolean; |
| 865 |
begin |
| 866 |
Result := FHasDefaultCharSet |
| 867 |
end; |
| 868 |
|
| 869 |
function TFBAttachment.GetDefaultCharSetID: integer; |
| 870 |
begin |
| 871 |
Result := FCharsetID; |
| 872 |
end; |
| 873 |
|
| 874 |
function TFBAttachment.GetCharsetName(CharSetID: integer): AnsiString; |
| 875 |
var i: integer; |
| 876 |
begin |
| 877 |
Result := ''; |
| 878 |
if (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap)) and |
| 879 |
(CharSetMap[CharSetID].CharSetID = CharSetID) then |
| 880 |
begin |
| 881 |
Result := CharSetMap[CharSetID].CharSetName; |
| 882 |
Exit; |
| 883 |
end; |
| 884 |
|
| 885 |
for i := 0 to Length(FUserCharSetMap) - 1 do |
| 886 |
if FUserCharSetMap[i].CharSetID = CharSetID then |
| 887 |
begin |
| 888 |
Result := FUserCharSetMap[i].CharSetName; |
| 889 |
Exit; |
| 890 |
end; |
| 891 |
end; |
| 892 |
|
| 893 |
function TFBAttachment.CharSetID2CodePage(CharSetID: integer; |
| 894 |
var CodePage: TSystemCodePage): boolean; |
| 895 |
var i: integer; |
| 896 |
begin |
| 897 |
Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap)) |
| 898 |
and (CharSetMap[CharSetID].CharSetID = CharSetID); |
| 899 |
if Result then |
| 900 |
begin |
| 901 |
CodePage := CharSetMap[CharSetID].CodePage; |
| 902 |
Result := true; |
| 903 |
Exit; |
| 904 |
end; |
| 905 |
|
| 906 |
for i := 0 to Length(FUserCharSetMap) - 1 do |
| 907 |
if FUserCharSetMap[i].CharSetID = CharSetID then |
| 908 |
begin |
| 909 |
CodePage := FUserCharSetMap[i].CodePage; |
| 910 |
Result := true; |
| 911 |
Exit; |
| 912 |
end; |
| 913 |
end; |
| 914 |
|
| 915 |
function TFBAttachment.CodePage2CharSetID(CodePage: TSystemCodePage; |
| 916 |
var CharSetID: integer): boolean; |
| 917 |
var i: integer; |
| 918 |
begin |
| 919 |
Result := false; |
| 920 |
for i := Low(CharSetMap) to High(CharSetMap) do |
| 921 |
if (CharSetMap[i].AllowReverseLookup) and (CharSetMap[i].CodePage = CodePage) then |
| 922 |
begin |
| 923 |
CharSetID := CharSetMap[i].CharSetID; |
| 924 |
Result := true; |
| 925 |
Exit; |
| 926 |
end; |
| 927 |
|
| 928 |
for i := 0 to Length(FUserCharSetMap) - 1 do |
| 929 |
if (FUserCharSetMap[i].AllowReverseLookup) and (FUserCharSetMap[i].CodePage = CodePage) then |
| 930 |
begin |
| 931 |
CharSetID := FUserCharSetMap[i].CharSetID; |
| 932 |
Result := true; |
| 933 |
Exit; |
| 934 |
end; |
| 935 |
end; |
| 936 |
|
| 937 |
function TFBAttachment.CharSetName2CharSetID(CharSetName: AnsiString; |
| 938 |
var CharSetID: integer): boolean; |
| 939 |
var i: integer; |
| 940 |
begin |
| 941 |
Result := false; |
| 942 |
for i := Low(CharSetMap) to High(CharSetMap) do |
| 943 |
if AnsiCompareText(CharSetMap[i].CharSetName, CharSetName) = 0 then |
| 944 |
begin |
| 945 |
CharSetID := CharSetMap[i].CharSetID; |
| 946 |
Result := true; |
| 947 |
Exit; |
| 948 |
end; |
| 949 |
|
| 950 |
for i := 0 to Length(FUserCharSetMap) - 1 do |
| 951 |
if AnsiCompareText(FUserCharSetMap[i].CharSetName, CharSetName) = 0 then |
| 952 |
begin |
| 953 |
CharSetID := FUserCharSetMap[i].CharSetID; |
| 954 |
Result := true; |
| 955 |
Exit; |
| 956 |
end; |
| 957 |
end; |
| 958 |
|
| 959 |
function TFBAttachment.CharSetWidth(CharSetID: integer; var Width: integer |
| 960 |
): boolean; |
| 961 |
var i: integer; |
| 962 |
begin |
| 963 |
Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap)) |
| 964 |
and (CharSetMap[CharSetID].CharSetID = CharSetID); |
| 965 |
if Result then |
| 966 |
begin |
| 967 |
Width := CharSetMap[CharSetID].CharSetWidth; |
| 968 |
Result := true; |
| 969 |
Exit; |
| 970 |
end; |
| 971 |
|
| 972 |
for i := 0 to Length(FUserCharSetMap) - 1 do |
| 973 |
if FUserCharSetMap[i].CharSetID = CharSetID then |
| 974 |
begin |
| 975 |
Width := FUserCharSetMap[i].CharSetWidth; |
| 976 |
Result := true; |
| 977 |
Exit; |
| 978 |
end; |
| 979 |
end; |
| 980 |
|
| 981 |
const |
| 982 |
sqlLookupCharSet = 'Select RDB$CHARACTER_SET_ID, RDB$BYTES_PER_CHARACTER From RDB$CHARACTER_SETS '+ |
| 983 |
'Where RDB$SYSTEM_FLAG = 0 and RDB$CHARACTER_SET_NAME = UPPER(?)'; |
| 984 |
|
| 985 |
procedure TFBAttachment.RegisterCharSet(CharSetName: AnsiString; |
| 986 |
CodePage: TSystemCodePage; AllowReverseLookup: boolean; out CharSetID: integer |
| 987 |
); |
| 988 |
var CharSets: IResultSet; |
| 989 |
idx: integer; |
| 990 |
begin |
| 991 |
if CharSetName2CharSetID(CharSetName,CharSetID) then |
| 992 |
IBError(ibxeCharacterSetExists,[CharSetName]); |
| 993 |
|
| 994 |
CharSets := OpenCursorAtStart(sqlLookupCharSet,[CharSetName]); |
| 995 |
if CharSets.IsEof then |
| 996 |
IBError(ibxeUnknownUserCharSet,[CharSetName]); |
| 997 |
|
| 998 |
idx := Length(FUserCharSetMap); |
| 999 |
SetLength(FUserCharSetMap,idx+1); |
| 1000 |
FUserCharSetMap[idx].AllowReverseLookup := AllowReverseLookup; |
| 1001 |
FUserCharSetMap[idx].CharSetID := CharSets[0].AsInteger; |
| 1002 |
FUserCharSetMap[idx].CharSetName := AnsiUpperCase(CharSetName); |
| 1003 |
FUserCharSetMap[idx].CharSetWidth := CharSets[1].AsInteger; |
| 1004 |
FUserCharSetMap[idx].CodePage := CodePage; |
| 1005 |
CharSetID := CharSets[0].AsInteger; |
| 1006 |
end; |
| 1007 |
|
| 1008 |
function TFBAttachment.GetTimeZoneServices: ITimeZoneServices; |
| 1009 |
begin |
| 1010 |
IBError(ibxeNotSupported,[]); |
| 1011 |
end; |
| 1012 |
|
| 1013 |
function TFBAttachment.HasTimeZoneSupport: boolean; |
| 1014 |
begin |
| 1015 |
Result := false; |
| 1016 |
end; |
| 1017 |
|
| 1018 |
{ TDPBItem } |
| 1019 |
|
| 1020 |
function TDPBItem.getParamTypeName: AnsiString; |
| 1021 |
begin |
| 1022 |
Result := DPBPrefix + DPBConstantNames[getParamType]; |
| 1023 |
end; |
| 1024 |
|
| 1025 |
{ TDPB } |
| 1026 |
|
| 1027 |
constructor TDPB.Create(api: TFBClientAPI); |
| 1028 |
begin |
| 1029 |
inherited Create(api); |
| 1030 |
FDataLength := 1; |
| 1031 |
FBuffer^ := isc_dpb_version1; |
| 1032 |
end; |
| 1033 |
|
| 1034 |
function TDPB.GetDPBParamTypeName(ParamType: byte): Ansistring; |
| 1035 |
begin |
| 1036 |
if ParamType <= isc_dpb_last_dpb_constant then |
| 1037 |
Result := DPBConstantNames[ParamType] |
| 1038 |
else |
| 1039 |
Result := ''; |
| 1040 |
end; |
| 1041 |
|
| 1042 |
function TDPB.LookupItemType(ParamTypeName: AnsiString): byte; |
| 1043 |
var i: byte; |
| 1044 |
begin |
| 1045 |
Result := 0; |
| 1046 |
ParamTypeName := LowerCase(ParamTypeName); |
| 1047 |
if (Pos(DPBPrefix, ParamTypeName) = 1) then |
| 1048 |
Delete(ParamTypeName, 1, Length(DPBPrefix)); |
| 1049 |
|
| 1050 |
for i := 1 to isc_dpb_last_dpb_constant do |
| 1051 |
if (ParamTypeName = DPBConstantNames[i]) then |
| 1052 |
begin |
| 1053 |
Result := i; |
| 1054 |
break; |
| 1055 |
end; |
| 1056 |
end; |
| 1057 |
|
| 1058 |
end. |
| 1059 |
|
