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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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{$ENDIF}
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{$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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interface
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uses
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Classes, SysUtils, {$IFDEF WINDOWS} windows, {$ENDIF} IB, FBParamBlock,
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FBActivityMonitor, FBClientAPI, IBUtils;
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const
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DefaultMaxInlineBlobLimit = 8192;
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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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{ Database Journalling.
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This class is intended to support a client side journal of all database
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updates, inserts and deletes made by the client during a session. It also records
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the transaction each update was made under.
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The database schema is required to include a control table "IBX$JOURNALS" and
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an SQL Sequence IBX$SESSIONS. These are created by the class when the
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database is opened, if they are not already present. However, it is recommended
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that they are created as an orginal part of the database schema in order to
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unnecessarily avoid each user being given sufficient priviledge to create tables
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and Sequences.
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Syntax:
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Transaction Start:
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*S:<date/time>,<session id>,<transaction no.>,<string length>:<transaction Name>,<string length>:<TPB>,<default Completion>
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Transaction Commit:
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*C:<date/time>,<session id>,<transaction no.>
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Transaction Commit retaining :
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*c:<date/time>,<session id>,<transaction no.><old transaction no.>
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Transaction Rollback:
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*R:<date/time>,<session id>,<transaction no.>
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Transaction Rollback retaining:
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*r:<date/time>,<session id>,<transaction no.><old transaction no.>
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Update/Insert/Delete
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*Q:<date/time>,<session id>,<transaction no.>,<length of query text in bytes>:<query text>
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}
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{ TFBJournaling }
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TFBJournaling = class(TActivityHandler, IJournallingHook)
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private
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{Logfile}
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const sQueryJournal = '*Q:''%s'',%d,%d,%d:%s' + LineEnding;
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const sTransStartJnl = '*S:''%s'',%d,%d,%d:%s,%d:%s,%d' + LineEnding;
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const sTransCommitJnl = '*C:''%s'',%d,%d' + LineEnding;
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const sTransCommitRetJnl = '*c:''%s'',%d,%d,%d' + LineEnding;
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const sTransRollBackJnl = '*R:''%s'',%d,%d' + LineEnding;
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const sTransRollBackRetJnl = '*r:''%s'',%d,%d,%d' + LineEnding;
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private
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FOptions: TJournalOptions;
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FJournalFilePath: string;
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FJournalFileStream: TStream;
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FSessionID: integer;
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FDoNotJournal: boolean;
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function GetDateTimeFmt: AnsiString;
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protected
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procedure EndSession(RetainJournal: boolean);
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function GetAttachment: IAttachment; virtual; abstract;
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public
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{IAttachment}
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procedure Disconnect(Force: boolean=false); virtual;
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public
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{IJournallingHook}
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procedure TransactionStart(Tr: ITransaction);
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function TransactionEnd( TransactionID: integer; Action: TTransactionAction): boolean;
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procedure TransactionRetained(Tr: ITransaction; OldTransactionID: integer;
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Action: TTransactionAction);
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procedure ExecQuery(Stmt: IStatement);
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public
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{Client side Journaling}
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function JournalingActive: boolean;
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function GetJournalOptions: TJournalOptions;
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function StartJournaling(aJournalLogFile: AnsiString): integer; overload;
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function StartJournaling(aJournalLogFile: AnsiString; Options: TJournalOptions): integer; overload;
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procedure StopJournaling(RetainJournal: boolean);
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end;
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{ TFBAttachment }
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TFBAttachment = class(TFBJournaling)
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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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FInlineBlobLimit: integer;
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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;
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DefaultCompletion: TTransactionCompletion;
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aName: AnsiString=''): ITransaction; overload; virtual; abstract;
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function StartTransaction(TPB: ITPB; DefaultCompletion: TTransactionCompletion;
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aName: AnsiString=''): ITransaction; overload; 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;
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Scrollable: boolean=false): 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; Scrollable: boolean=false): 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 OpenCursor(transaction: ITransaction; sql: AnsiString; Scrollable: boolean;
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params: array of const): IResultSet; overload;
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function OpenCursor(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
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params: array of const): IResultSet; overload;
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function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; aSQLDialect: integer;
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Scrollable: boolean=false): 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; aSQLDialect: integer; Scrollable: boolean;
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params: array of const): IResultSet; overload;
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function OpenCursorAtStart(transaction: ITransaction; sql: AnsiString; Scrollable: boolean=false): 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(transaction: ITransaction; sql: AnsiString; Scrollable: boolean;
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params: array of const): IResultSet; overload;
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function OpenCursorAtStart(sql: AnsiString;Scrollable: boolean=false): IResultSet; overload;
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function OpenCursorAtStart(sql: AnsiString; Scrollable: boolean;
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params: array of const): 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; CursorName: AnsiString=''): IStatement; overload; virtual; abstract;
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function Prepare(transaction: ITransaction; sql: AnsiString; CursorName: 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; CursorName: AnsiString=''): 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; CursorName: AnsiString=''): 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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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 GetAttachmentID: integer;
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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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function GetInlineBlobLimit: integer;
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procedure SetInlineBlobLimit(limit: integer);
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function HasBatchMode: boolean; virtual;
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function HasTable(aTableName: AnsiString): boolean;
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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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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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end;
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{ TDPBItem }
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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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{ TDPB }
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280 |
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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 GetParamTypeName(ParamType: byte): Ansistring;
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{$IFDEF FPC}
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function IDPB.GetDPBParamTypeName = GetParamTypeName;
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{$ELSE}
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function GetDPBParamTypeName(ParamType: byte): Ansistring;
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{$ENDIF}
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end;
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implementation
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295 |
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296 |
uses FBMessages, IBErrorCodes, FBTransaction {$IFDEF HASREQEX}, RegExpr{$ENDIF};
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|
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const
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299 |
{Journaling}
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sJournalTableName = 'IBX$JOURNALS';
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sSequenceName = 'IBX$SESSIONS';
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302 |
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sqlCreateJournalTable =
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'Create Table ' + sJournalTableName + '(' +
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' IBX$SessionID Integer not null, '+
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' IBX$TransactionID Integer not null, '+
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' IBX$OldTransactionID Integer, '+
|
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' IBX$USER VarChar(32) Default CURRENT_USER, '+
|
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' IBX$CREATED TIMESTAMP Default CURRENT_TIMESTAMP, '+
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' Primary Key(IBX$SessionID,IBX$TransactionID)' +
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')';
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312 |
|
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sqlCreateSequence = 'CREATE SEQUENCE ' + sSequenceName;
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314 |
|
315 |
sqlGetNextSessionID = 'Select Gen_ID(' + sSequenceName + ',1) as SessionID From RDB$DATABASE';
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316 |
|
317 |
sqlRecordJournalEntry = 'Insert into ' + sJournalTableName + '(IBX$SessionID,IBX$TransactionID,IBX$OldTransactionID) '+
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'Values(?,?,?)';
|
319 |
|
320 |
sqlCleanUpSession = 'Delete From ' + sJournalTableName + ' Where IBX$SessionID = ?';
|
321 |
|
322 |
const
|
323 |
CharSetMap: array [0..69] of TCharsetMap = (
|
324 |
(CharsetID: 0; CharSetName: 'NONE'; CharSetWidth: 1; CodePage: CP_ACP; AllowReverseLookup: true),
|
325 |
(CharsetID: 1; CharSetName: 'OCTETS'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true),
|
326 |
(CharsetID: 2; CharSetName: 'ASCII'; CharSetWidth: 1; CodePage: CP_ASCII; AllowReverseLookup: true),
|
327 |
(CharsetID: 3; CharSetName: 'UNICODE_FSS'; CharSetWidth: 3; CodePage: CP_UTF8; AllowReverseLookup: false),
|
328 |
(CharsetID: 4; CharSetName: 'UTF8'; CharSetWidth: 4; CodePage: CP_UTF8; AllowReverseLookup: true),
|
329 |
(CharsetID: 5; CharSetName: 'SJIS_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true),
|
330 |
(CharsetID: 6; CharSetName: 'EUCJ_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true),
|
331 |
(CharsetID: 7; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
|
332 |
(CharsetID: 8; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
|
333 |
(CharsetID: 9; CharSetName: 'DOS737'; CharSetWidth: 1; CodePage: 737; AllowReverseLookup: true),
|
334 |
(CharsetID: 10; CharSetName: 'DOS437'; CharSetWidth: 1; CodePage: 437; AllowReverseLookup: true),
|
335 |
(CharsetID: 11; CharSetName: 'DOS850'; CharSetWidth: 1; CodePage: 850; AllowReverseLookup: true),
|
336 |
(CharsetID: 12; CharSetName: 'DOS865'; CharSetWidth: 1; CodePage: 865; AllowReverseLookup: true),
|
337 |
(CharsetID: 13; CharSetName: 'DOS860'; CharSetWidth: 1; CodePage: 860; AllowReverseLookup: true),
|
338 |
(CharsetID: 14; CharSetName: 'DOS863'; CharSetWidth: 1; CodePage: 863; AllowReverseLookup: true),
|
339 |
(CharsetID: 15; CharSetName: 'DOS775'; CharSetWidth: 1; CodePage: 775; AllowReverseLookup: true),
|
340 |
(CharsetID: 16; CharSetName: 'DOS858'; CharSetWidth: 1; CodePage: 858; AllowReverseLookup: true),
|
341 |
(CharsetID: 17; CharSetName: 'DOS862'; CharSetWidth: 1; CodePage: 862; AllowReverseLookup: true),
|
342 |
(CharsetID: 18; CharSetName: 'DOS864'; CharSetWidth: 1; CodePage: 864; AllowReverseLookup: true),
|
343 |
(CharsetID: 19; CharSetName: 'NEXT'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true),
|
344 |
(CharsetID: 20; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
|
345 |
(CharsetID: 21; CharSetName: 'ISO8859_1'; CharSetWidth: 1; CodePage: 28591; AllowReverseLookup: true),
|
346 |
(CharsetID: 22; CharSetName: 'ISO8859_2'; CharSetWidth: 1; CodePage: 28592; AllowReverseLookup: true),
|
347 |
(CharsetID: 23; CharSetName: 'ISO8859_3'; CharSetWidth: 1; CodePage: 28593; AllowReverseLookup: true),
|
348 |
(CharsetID: 24; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
349 |
(CharsetID: 25; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
350 |
(CharsetID: 26; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
351 |
(CharsetID: 27; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
352 |
(CharsetID: 28; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
353 |
(CharsetID: 29; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
354 |
(CharsetID: 30; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
355 |
(CharsetID: 31; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
356 |
(CharsetID: 32; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
357 |
(CharsetID: 33; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
358 |
(CharsetID: 34; CharSetName: 'ISO8859_4'; CharSetWidth: 1; CodePage: 28594; AllowReverseLookup: true),
|
359 |
(CharsetID: 35; CharSetName: 'ISO8859_5'; CharSetWidth: 1; CodePage: 28595; AllowReverseLookup: true),
|
360 |
(CharsetID: 36; CharSetName: 'ISO8859_6'; CharSetWidth: 1; CodePage: 28596; AllowReverseLookup: true),
|
361 |
(CharsetID: 37; CharSetName: 'ISO8859_7'; CharSetWidth: 1; CodePage: 28597; AllowReverseLookup: true),
|
362 |
(CharsetID: 38; CharSetName: 'ISO8859_8'; CharSetWidth: 1; CodePage: 28598; AllowReverseLookup: true),
|
363 |
(CharsetID: 39; CharSetName: 'ISO8859_9'; CharSetWidth: 1; CodePage: 28599; AllowReverseLookup: true),
|
364 |
(CharsetID: 40; CharSetName: 'ISO8859_13'; CharSetWidth: 1; CodePage: 28603; AllowReverseLookup: true),
|
365 |
(CharsetID: 41; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
366 |
(CharsetID: 42; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
367 |
(CharsetID: 43; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
368 |
(CharsetID: 44; CharSetName: 'KSC_5601'; CharSetWidth: 2; CodePage: 949; AllowReverseLookup: true),
|
369 |
(CharsetID: 45; CharSetName: 'DOS852'; CharSetWidth: 1; CodePage: 852; AllowReverseLookup: true),
|
370 |
(CharsetID: 46; CharSetName: 'DOS857'; CharSetWidth: 1; CodePage: 857; AllowReverseLookup: true),
|
371 |
(CharsetID: 47; CharSetName: 'DOS861'; CharSetWidth: 1; CodePage: 861; AllowReverseLookup: true),
|
372 |
(CharsetID: 48; CharSetName: 'DOS866'; CharSetWidth: 1; CodePage: 866; AllowReverseLookup: true),
|
373 |
(CharsetID: 49; CharSetName: 'DOS869'; CharSetWidth: 1; CodePage: 869; AllowReverseLookup: true),
|
374 |
(CharsetID: 50; CharSetName: 'CYRL'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true),
|
375 |
(CharsetID: 51; CharSetName: 'WIN1250'; CharSetWidth: 1; CodePage: 1250; AllowReverseLookup: true),
|
376 |
(CharsetID: 52; CharSetName: 'WIN1251'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true),
|
377 |
(CharsetID: 53; CharSetName: 'WIN1252'; CharSetWidth: 1; CodePage: 1252; AllowReverseLookup: true),
|
378 |
(CharsetID: 54; CharSetName: 'WIN1253'; CharSetWidth: 1; CodePage: 1253; AllowReverseLookup: true),
|
379 |
(CharsetID: 55; CharSetName: 'WIN1254'; CharSetWidth: 1; CodePage: 1254; AllowReverseLookup: true),
|
380 |
(CharsetID: 56; CharSetName: 'BIG_5'; CharSetWidth: 2; CodePage: 950; AllowReverseLookup: true),
|
381 |
(CharsetID: 57; CharSetName: 'GB_2312'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true),
|
382 |
(CharsetID: 58; CharSetName: 'WIN1255'; CharSetWidth: 1; CodePage: 1255; AllowReverseLookup: true),
|
383 |
(CharsetID: 59; CharSetName: 'WIN1256'; CharSetWidth: 1; CodePage: 1256; AllowReverseLookup: true),
|
384 |
(CharsetID: 60; CharSetName: 'WIN1257'; CharSetWidth: 1; CodePage: 1257; AllowReverseLookup: true),
|
385 |
(CharsetID: 61; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
386 |
(CharsetID: 62; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
387 |
(CharsetID: 63; CharSetName: 'KOI8R'; CharSetWidth: 1; CodePage: 20866; AllowReverseLookup: true),
|
388 |
(CharsetID: 64; CharSetName: 'KOI8U'; CharSetWidth: 1; CodePage: 21866; AllowReverseLookup: true),
|
389 |
(CharsetID: 65; CharSetName: 'WIN1258'; CharSetWidth: 1; CodePage: 1258; AllowReverseLookup: true),
|
390 |
(CharsetID: 66; CharSetName: 'TIS620'; CharSetWidth: 1; CodePage: 874; AllowReverseLookup: true),
|
391 |
(CharsetID: 67; CharSetName: 'GBK'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true),
|
392 |
(CharsetID: 68; CharSetName: 'CP943C'; CharSetWidth: 2; CodePage: 943; AllowReverseLookup: true),
|
393 |
(CharsetID: 69; CharSetName: 'GB18030'; CharSetWidth: 4; CodePage: 54936; AllowReverseLookup: true)
|
394 |
);
|
395 |
|
396 |
const
|
397 |
isc_dpb_last_dpb_constant = isc_dpb_decfloat_traps;
|
398 |
|
399 |
DPBConstantNames: array[1..isc_dpb_last_dpb_constant] of string = (
|
400 |
'cdd_pathname',
|
401 |
'allocation',
|
402 |
'journal',
|
403 |
'page_size',
|
404 |
'num_buffers',
|
405 |
'buffer_length',
|
406 |
'debug',
|
407 |
'garbage_collect',
|
408 |
'verify',
|
409 |
'sweep',
|
410 |
'enable_journal',
|
411 |
'disable_journal',
|
412 |
'dbkey_scope',
|
413 |
'number_of_users',
|
414 |
'trace',
|
415 |
'no_garbage_collect',
|
416 |
'damaged',
|
417 |
'license',
|
418 |
'sys_user_name',
|
419 |
'encrypt_key',
|
420 |
'activate_shadow',
|
421 |
'sweep_interval',
|
422 |
'delete_shadow',
|
423 |
'force_write',
|
424 |
'begin_log',
|
425 |
'quit_log',
|
426 |
'no_reserve',
|
427 |
'user_name',
|
428 |
'password',
|
429 |
'password_enc',
|
430 |
'sys_user_name_enc',
|
431 |
'interp',
|
432 |
'online_dump',
|
433 |
'old_file_size',
|
434 |
'old_num_files',
|
435 |
'old_file',
|
436 |
'old_start_page',
|
437 |
'old_start_seqno',
|
438 |
'old_start_file',
|
439 |
'drop_walfile',
|
440 |
'old_dump_id',
|
441 |
'wal_backup_dir',
|
442 |
'wal_chkptlen',
|
443 |
'wal_numbufs',
|
444 |
'wal_bufsize',
|
445 |
'wal_grp_cmt_wait',
|
446 |
'lc_messages',
|
447 |
'lc_ctype',
|
448 |
'cache_manager',
|
449 |
'shutdown',
|
450 |
'online',
|
451 |
'shutdown_delay',
|
452 |
'reserved',
|
453 |
'overwrite',
|
454 |
'sec_attach',
|
455 |
'disable_wal',
|
456 |
'connect_timeout',
|
457 |
'dummy_packet_interval',
|
458 |
'gbak_attach',
|
459 |
'sql_role_name',
|
460 |
'set_page_buffers',
|
461 |
'working_directory',
|
462 |
'sql_dialect',
|
463 |
'set_db_readonly',
|
464 |
'set_db_sql_dialect',
|
465 |
'gfix_attach',
|
466 |
'gstat_attach',
|
467 |
'set_db_charset',
|
468 |
'gsec_attach',
|
469 |
'address_path' ,
|
470 |
'process_id',
|
471 |
'no_db_triggers',
|
472 |
'trusted_auth',
|
473 |
'process_name',
|
474 |
'trusted_role',
|
475 |
'org_filename',
|
476 |
'utf8_ilename',
|
477 |
'ext_call_depth',
|
478 |
'auth_block',
|
479 |
'client_version',
|
480 |
'remote_protocol',
|
481 |
'host_name',
|
482 |
'os_user',
|
483 |
'specific_auth_data',
|
484 |
'auth_plugin_list',
|
485 |
'auth_plugin_name',
|
486 |
'config',
|
487 |
'nolinger',
|
488 |
'reset_icu',
|
489 |
'map_attach',
|
490 |
'session_time_zone',
|
491 |
'set_db_replica',
|
492 |
'set_bind',
|
493 |
'decfloat_round',
|
494 |
'decfloat_traps'
|
495 |
);
|
496 |
|
497 |
type
|
498 |
|
499 |
{ TQueryProcessor }
|
500 |
|
501 |
TQueryProcessor=class(TSQLTokeniser)
|
502 |
private
|
503 |
FInString: AnsiString;
|
504 |
FIndex: integer;
|
505 |
FStmt: IStatement;
|
506 |
function DoExecute: AnsiString;
|
507 |
function GetParamValue(ParamIndex: integer): AnsiString;
|
508 |
protected
|
509 |
function GetChar: AnsiChar; override;
|
510 |
public
|
511 |
class function Execute(Stmt: IStatement): AnsiString;
|
512 |
end;
|
513 |
|
514 |
{ TQueryProcessor }
|
515 |
|
516 |
function TQueryProcessor.DoExecute: AnsiString;
|
517 |
var token: TSQLTokens;
|
518 |
ParamIndex: integer;
|
519 |
begin
|
520 |
Result := '';
|
521 |
ParamIndex := 0;
|
522 |
|
523 |
while not EOF do
|
524 |
begin
|
525 |
token := GetNextToken;
|
526 |
case token of
|
527 |
sqltPlaceHolder:
|
528 |
begin
|
529 |
Result := Result + GetParamValue(ParamIndex);
|
530 |
Inc(ParamIndex);
|
531 |
end;
|
532 |
else
|
533 |
Result := Result + TokenText;
|
534 |
end;
|
535 |
end;
|
536 |
end;
|
537 |
|
538 |
function TQueryProcessor.GetParamValue(ParamIndex: integer): AnsiString;
|
539 |
begin
|
540 |
with FStmt.SQLParams[ParamIndex] do
|
541 |
begin
|
542 |
if IsNull then
|
543 |
Result := 'NULL'
|
544 |
else
|
545 |
case GetSQLType of
|
546 |
SQL_BLOB:
|
547 |
if getSubType = 1 then {string}
|
548 |
Result := '''' + SQLSafeString(GetAsString) + ''''
|
549 |
else
|
550 |
Result := TSQLXMLReader.FormatBlob(GetAsString,getSubType);
|
551 |
|
552 |
SQL_ARRAY:
|
553 |
Result := TSQLXMLReader.FormatArray(getAsArray);
|
554 |
|
555 |
SQL_VARYING,
|
556 |
SQL_TEXT,
|
557 |
SQL_TIMESTAMP,
|
558 |
SQL_TYPE_DATE,
|
559 |
SQL_TYPE_TIME,
|
560 |
SQL_TIMESTAMP_TZ_EX,
|
561 |
SQL_TIME_TZ_EX,
|
562 |
SQL_TIMESTAMP_TZ,
|
563 |
SQL_TIME_TZ:
|
564 |
Result := '''' + SQLSafeString(GetAsString) + '''';
|
565 |
else
|
566 |
Result := GetAsString;
|
567 |
end;
|
568 |
end;
|
569 |
end;
|
570 |
|
571 |
function TQueryProcessor.GetChar: AnsiChar;
|
572 |
begin
|
573 |
if FIndex <= Length(FInString) then
|
574 |
begin
|
575 |
Result := FInString[FIndex];
|
576 |
Inc(FIndex);
|
577 |
end
|
578 |
else
|
579 |
Result := #0;
|
580 |
end;
|
581 |
|
582 |
class function TQueryProcessor.Execute(Stmt: IStatement): AnsiString;
|
583 |
begin
|
584 |
if not Stmt.IsPrepared then
|
585 |
IBError(ibxeSQLClosed,[]);
|
586 |
with self.Create do
|
587 |
try
|
588 |
FStmt := Stmt;
|
589 |
FInString := Stmt.GetProcessedSQLText;
|
590 |
FIndex := 1;
|
591 |
Result := Trim(DoExecute);
|
592 |
finally
|
593 |
Free;
|
594 |
end;
|
595 |
end;
|
596 |
|
597 |
{ TFBJournaling }
|
598 |
|
599 |
function TFBJournaling.GetDateTimeFmt: AnsiString;
|
600 |
begin
|
601 |
{$IF declared(DefaultFormatSettings)}
|
602 |
with DefaultFormatSettings do
|
603 |
{$ELSE}
|
604 |
{$IF declared(FormatSettings)}
|
605 |
with FormatSettings do
|
606 |
{$IFEND}
|
607 |
{$IFEND}
|
608 |
Result := ShortDateFormat + ' ' + LongTimeFormat + '.zzzz'
|
609 |
end;
|
610 |
|
611 |
procedure TFBJournaling.EndSession(RetainJournal: boolean);
|
612 |
begin
|
613 |
if JournalingActive then
|
614 |
begin
|
615 |
FreeAndNil(FJournalFileStream);
|
616 |
if not RetainJournal then
|
617 |
try
|
618 |
GetAttachment.ExecuteSQL([isc_tpb_write,isc_tpb_wait,isc_tpb_consistency],
|
619 |
sqlCleanUpSession,[FSessionID]);
|
620 |
sysutils.DeleteFile(FJournalFilePath);
|
621 |
except On E: EIBInterBaseError do
|
622 |
if E.IBErrorCode <> isc_lost_db_connection then
|
623 |
raise;
|
624 |
{ignore - do not delete journal if database gone away}
|
625 |
end;
|
626 |
FSessionID := -1;
|
627 |
end;
|
628 |
end;
|
629 |
|
630 |
procedure TFBJournaling.Disconnect(Force: boolean);
|
631 |
begin
|
632 |
if JournalingActive then
|
633 |
EndSession(Force);
|
634 |
end;
|
635 |
|
636 |
procedure TFBJournaling.TransactionStart(Tr: ITransaction);
|
637 |
var LogEntry: AnsiString;
|
638 |
TPBText: AnsiString;
|
639 |
begin
|
640 |
FDoNotJournal := true;
|
641 |
try
|
642 |
GetAttachment.ExecuteSQL(Tr,sqlRecordJournalEntry,[FSessionID,Tr.GetTransactionID,NULL]);
|
643 |
finally
|
644 |
FDoNotJournal := false;
|
645 |
end;
|
646 |
TPBText := Tr.getTPB.AsText;
|
647 |
LogEntry := Format(sTransStartJnl,[FBFormatDateTime(GetDateTimeFmt,Now),
|
648 |
FSessionID,
|
649 |
Tr.GetTransactionID,
|
650 |
Length(Tr.TransactionName),
|
651 |
Tr.TransactionName,
|
652 |
Length(TPBText),TPBText,
|
653 |
ord(tr.GetDefaultCompletion)]);
|
654 |
if assigned(FJournalFileStream) then
|
655 |
FJournalFileStream.Write(LogEntry[1],Length(LogEntry));
|
656 |
end;
|
657 |
|
658 |
function TFBJournaling.TransactionEnd(TransactionID: integer;
|
659 |
Action: TTransactionAction): boolean;
|
660 |
|
661 |
var LogEntry: AnsiString;
|
662 |
begin
|
663 |
Result := false;
|
664 |
case Action of
|
665 |
TARollback:
|
666 |
begin
|
667 |
LogEntry := Format(sTransRollbackJnl,[FBFormatDateTime(GetDateTimeFmt,Now),FSessionID,TransactionID]);
|
668 |
Result := true;
|
669 |
end;
|
670 |
TACommit:
|
671 |
begin
|
672 |
LogEntry := Format(sTransCommitJnl,[FBFormatDateTime(GetDateTimeFmt,Now),FSessionID,TransactionID]);
|
673 |
Result := true;
|
674 |
end;
|
675 |
end;
|
676 |
if assigned(FJournalFileStream) then
|
677 |
FJournalFileStream.Write(LogEntry[1],Length(LogEntry));
|
678 |
end;
|
679 |
|
680 |
procedure TFBJournaling.TransactionRetained(Tr: ITransaction;
|
681 |
OldTransactionID: integer; Action: TTransactionAction);
|
682 |
var LogEntry: AnsiString;
|
683 |
begin
|
684 |
case Action of
|
685 |
TACommitRetaining:
|
686 |
LogEntry := Format(sTransCommitRetJnl,[FBFormatDateTime(GetDateTimeFmt,Now),
|
687 |
FSessionID,Tr.GetTransactionID,OldTransactionID]);
|
688 |
TARollbackRetaining:
|
689 |
LogEntry := Format(sTransRollbackRetJnl,[FBFormatDateTime(GetDateTimeFmt,Now),
|
690 |
FSessionID,Tr.GetTransactionID,OldTransactionID]);
|
691 |
end;
|
692 |
if assigned(FJournalFileStream) then
|
693 |
FJournalFileStream.Write(LogEntry[1],Length(LogEntry));
|
694 |
|
695 |
FDoNotJournal := true;
|
696 |
try
|
697 |
GetAttachment.ExecuteSQL(Tr,sqlRecordJournalEntry,[FSessionID,Tr.GetTransactionID,OldTransactionID]);
|
698 |
finally
|
699 |
FDoNotJournal := false;
|
700 |
end;
|
701 |
end;
|
702 |
|
703 |
procedure TFBJournaling.ExecQuery(Stmt: IStatement);
|
704 |
var SQL: AnsiString;
|
705 |
LogEntry: AnsiString;
|
706 |
begin
|
707 |
SQL := TQueryProcessor.Execute(Stmt);
|
708 |
LogEntry := Format(sQueryJournal,[FBFormatDateTime(GetDateTimeFmt,Now),
|
709 |
FSessionID,
|
710 |
Stmt.GetTransaction.GetTransactionID,
|
711 |
Length(SQL),SQL]);
|
712 |
if assigned(FJournalFileStream) then
|
713 |
FJournalFileStream.Write(LogEntry[1],Length(LogEntry));
|
714 |
end;
|
715 |
|
716 |
function TFBJournaling.JournalingActive: boolean;
|
717 |
begin
|
718 |
Result := (FJournalFileStream <> nil) and not FDoNotJournal;
|
719 |
end;
|
720 |
|
721 |
function TFBJournaling.GetJournalOptions: TJournalOptions;
|
722 |
begin
|
723 |
Result := FOptions;
|
724 |
end;
|
725 |
|
726 |
function TFBJournaling.StartJournaling(aJournalLogFile: AnsiString): integer;
|
727 |
begin
|
728 |
Result := StartJournaling(aJournalLogFile,[joReadWriteTransactions,joModifyQueries]);
|
729 |
end;
|
730 |
|
731 |
function TFBJournaling.StartJournaling(aJournalLogFile: AnsiString;
|
732 |
Options: TJournalOptions): integer;
|
733 |
begin
|
734 |
FOptions := Options;
|
735 |
with GetAttachment do
|
736 |
begin
|
737 |
if not HasTable(sJournalTableName) then
|
738 |
begin
|
739 |
ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_consistency],sqlCreateJournalTable);
|
740 |
ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_consistency],sqlCreateSequence);
|
741 |
end;
|
742 |
FSessionID := OpenCursorAtStart(sqlGetNextSessionID)[0].AsInteger;
|
743 |
end;
|
744 |
FJournalFilePath := aJournalLogFile;
|
745 |
FJournalFileStream := TFileStream.Create(FJournalFilePath,fmCreate);
|
746 |
Result := FSessionID;
|
747 |
end;
|
748 |
|
749 |
procedure TFBJournaling.StopJournaling(RetainJournal: boolean);
|
750 |
begin
|
751 |
EndSession(RetainJournal);
|
752 |
end;
|
753 |
|
754 |
|
755 |
|
756 |
|
757 |
{ TFBAttachment }
|
758 |
|
759 |
procedure TFBAttachment.GetODSAndConnectionInfo;
|
760 |
var DBInfo: IDBInformation;
|
761 |
i: integer;
|
762 |
Stmt: IStatement;
|
763 |
ResultSet: IResultSet;
|
764 |
Param: IDPBItem;
|
765 |
begin
|
766 |
if not IsConnected then Exit;
|
767 |
DBInfo := GetDBInformation([isc_info_db_id,isc_info_ods_version,isc_info_ods_minor_version,
|
768 |
isc_info_db_SQL_Dialect]);
|
769 |
for i := 0 to DBInfo.GetCount - 1 do
|
770 |
with DBInfo[i] do
|
771 |
case getItemType of
|
772 |
isc_info_ods_minor_version:
|
773 |
FODSMinorVersion := getAsInteger;
|
774 |
isc_info_ods_version:
|
775 |
FODSMajorVersion := getAsInteger;
|
776 |
isc_info_db_SQL_Dialect:
|
777 |
FSQLDialect := getAsInteger;
|
778 |
end;
|
779 |
|
780 |
FCharSetID := 0;
|
781 |
FRemoteProtocol := '';
|
782 |
FAuthMethod := 'Legacy_Auth';
|
783 |
FSecDatabase := 'Default';
|
784 |
if FODSMajorVersion > 11 then
|
785 |
begin
|
786 |
Stmt := Prepare(StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit),
|
787 |
'Select MON$CHARACTER_SET_ID, MON$REMOTE_PROTOCOL, MON$AUTH_METHOD, MON$SEC_DATABASE From MON$ATTACHMENTS, MON$DATABASE '+
|
788 |
'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION ');
|
789 |
ResultSet := Stmt.OpenCursor;
|
790 |
if ResultSet.FetchNext then
|
791 |
begin
|
792 |
FCharSetID := ResultSet[0].AsInteger;
|
793 |
FRemoteProtocol := Trim(ResultSet[1].AsString);
|
794 |
FAuthMethod := Trim(ResultSet[2].AsString);
|
795 |
FSecDatabase := Trim(ResultSet[3].AsString);
|
796 |
end
|
797 |
end
|
798 |
else
|
799 |
if (FODSMajorVersion = 11) and (FODSMinorVersion >= 1) then
|
800 |
begin
|
801 |
Stmt := Prepare(StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit),
|
802 |
'Select MON$CHARACTER_SET_ID, MON$REMOTE_PROTOCOL From MON$ATTACHMENTS '+
|
803 |
'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION');
|
804 |
ResultSet := Stmt.OpenCursor;
|
805 |
if ResultSet.FetchNext then
|
806 |
begin
|
807 |
FCharSetID := ResultSet[0].AsInteger;
|
808 |
FRemoteProtocol := Trim(ResultSet[1].AsString);
|
809 |
end
|
810 |
end
|
811 |
else
|
812 |
if DPB <> nil then
|
813 |
begin
|
814 |
Param := DPB.Find(isc_dpb_lc_ctype);
|
815 |
if (Param = nil) or not CharSetName2CharSetID(Param.AsString,FCharSetID) then
|
816 |
FCharSetID := 0;
|
817 |
case GetProtocol(FDatabaseName) of
|
818 |
TCP: FRemoteProtocol := 'TCPv4';
|
819 |
Local: FRemoteProtocol := '';
|
820 |
NamedPipe: FRemoteProtocol := 'Netbui';
|
821 |
SPX: FRemoteProtocol := 'SPX'
|
822 |
end;
|
823 |
end;
|
824 |
FHasDefaultCharSet := CharSetID2CodePage(FCharSetID,FCodePage) and (FCharSetID > 1);
|
825 |
end;
|
826 |
|
827 |
constructor TFBAttachment.Create(api: TFBClientAPI; DatabaseName: AnsiString;
|
828 |
DPB: IDPB; RaiseExceptionOnConnectError: boolean);
|
829 |
begin
|
830 |
inherited Create;
|
831 |
FFirebirdAPI := api.GetAPI; {Keep reference to interface}
|
832 |
FSQLDialect := 3;
|
833 |
FDatabaseName := DatabaseName;
|
834 |
FDPB := DPB;
|
835 |
SetLength(FUserCharSetMap,0);
|
836 |
FRaiseExceptionOnConnectError := RaiseExceptionOnConnectError;
|
837 |
FODSMajorVersion := 0;
|
838 |
FODSMinorVersion := 0;
|
839 |
FInlineBlobLimit := DefaultMaxInlineBlobLimit;
|
840 |
end;
|
841 |
|
842 |
function TFBAttachment.GenerateCreateDatabaseSQL(DatabaseName: AnsiString; aDPB: IDPB): AnsiString;
|
843 |
var CreateParams: AnsiString;
|
844 |
DPBItem: IDPBItem;
|
845 |
begin
|
846 |
CreateParams := '';
|
847 |
|
848 |
if aDPB <> nil then
|
849 |
begin
|
850 |
DPBItem := aDPB.Find(isc_dpb_user_name);
|
851 |
if DPBItem <> nil then
|
852 |
CreateParams := CreateParams + ' USER ''' + DPBItem.AsString + '''';
|
853 |
|
854 |
DPBItem := aDPB.Find(isc_dpb_password);
|
855 |
if DPBItem <> nil then
|
856 |
CreateParams := CreateParams + ' Password ''' + DPBItem.AsString + '''';
|
857 |
|
858 |
DPBItem := aDPB.Find(isc_dpb_page_size);
|
859 |
if DPBItem <> nil then
|
860 |
CreateParams := CreateParams + ' PAGE_SIZE ' + DPBItem.AsString;
|
861 |
|
862 |
DPBItem := aDPB.Find(isc_dpb_lc_ctype);
|
863 |
if DPBItem <> nil then
|
864 |
CreateParams := CreateParams + ' DEFAULT CHARACTER SET ' + DPBItem.AsString;
|
865 |
|
866 |
DPBItem := aDPB.Find(isc_dpb_sql_dialect);
|
867 |
if DPBItem <> nil then
|
868 |
FSQLDialect := DPBItem.AsInteger;
|
869 |
end;
|
870 |
|
871 |
Result := 'CREATE DATABASE ''' + DatabaseName + ''' ' + CreateParams; {do not localize}
|
872 |
end;
|
873 |
|
874 |
procedure TFBAttachment.EndAllTransactions;
|
875 |
var i: integer;
|
876 |
intf: TInterfacedObject;
|
877 |
begin
|
878 |
for i := 0 to InterfaceCount - 1 do
|
879 |
begin
|
880 |
intf := GetInterface(i);
|
881 |
if (intf <> nil) and (intf is TFBTransaction) then
|
882 |
TFBTransaction(intf).DoDefaultTransactionEnd(true);
|
883 |
end;
|
884 |
end;
|
885 |
|
886 |
{$IFDEF HASREQEX}
|
887 |
procedure TFBAttachment.DPBFromCreateSQL(CreateSQL: AnsiString);
|
888 |
var RegexObj: TRegExpr;
|
889 |
begin
|
890 |
FDPB := FFirebirdAPI.AllocateDPB;
|
891 |
RegexObj := TRegExpr.Create;
|
892 |
try
|
893 |
{extact database file spec}
|
894 |
RegexObj.ModifierG := false; {turn off greedy matches}
|
895 |
RegexObj.ModifierI := true; {case insensitive match}
|
896 |
RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +''.*'' +USER +''(.+)'' PASSWORD +''(.+)''';
|
897 |
if RegexObj.Exec(CreateSQL) then
|
898 |
begin
|
899 |
DPB.Add(isc_dpb_user_name).AsString := system.copy(CreateSQL,RegexObj.MatchPos[2],RegexObj.MatchLen[2]);
|
900 |
DPB.Add(isc_dpb_password).AsString := system.copy(CreateSQL,RegexObj.MatchPos[3],RegexObj.MatchLen[3]);
|
901 |
end
|
902 |
else
|
903 |
begin
|
904 |
RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +(''.*'') +USER +''(.+)''';
|
905 |
if RegexObj.Exec(CreateSQL) then
|
906 |
DPB.Add(isc_dpb_user_name).AsString := system.copy(CreateSQL,RegexObj.MatchPos[2],RegexObj.MatchLen[2]);
|
907 |
end;
|
908 |
finally
|
909 |
RegexObj.Free;
|
910 |
end;
|
911 |
if FCharSetID > 0 then
|
912 |
DPB.Add(isc_dpb_lc_ctype).AsString := GetCharSetName(FCharSetID);
|
913 |
DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(FSQLDialect);
|
914 |
end;
|
915 |
{$ELSE}
|
916 |
procedure TFBAttachment.DPBFromCreateSQL(CreateSQL: AnsiString);
|
917 |
begin
|
918 |
FDPB := FFirebirdAPI.AllocateDPB;
|
919 |
if FCharSetID > 0 then
|
920 |
DPB.Add(isc_dpb_lc_ctype).AsString := GetCharSetName(FCharSetID);
|
921 |
DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(FSQLDialect);
|
922 |
end;
|
923 |
{$ENDIF}
|
924 |
|
925 |
procedure TFBAttachment.SetParameters(SQLParams: ISQLParams;
|
926 |
params: array of const);
|
927 |
var i: integer;
|
928 |
begin
|
929 |
if SQLParams.Count <> Length(params) then
|
930 |
IBError(ibxeInvalidParamCount,[SQLParams.Count,Length(params)]);
|
931 |
|
932 |
for i := 0 to High(params) do
|
933 |
begin
|
934 |
case params[i].vtype of
|
935 |
vtinteger :
|
936 |
SQLParams[i].AsInteger := params[i].vinteger;
|
937 |
vtInt64:
|
938 |
SQLParams[i].AsInt64 := params[i].VInt64^;
|
939 |
{$IF declared (vtQWord)}
|
940 |
vtQWord:
|
941 |
SQLParams[i].AsInt64 := params[i].VQWord^;
|
942 |
{$IFEND}
|
943 |
vtboolean :
|
944 |
SQLParams[i].AsBoolean := params[i].vboolean;
|
945 |
vtchar :
|
946 |
SQLParams[i].AsString := params[i].vchar;
|
947 |
vtextended :
|
948 |
SQLParams[i].AsDouble := params[i].VExtended^;
|
949 |
vtCurrency:
|
950 |
SQLParams[i].AsDouble := params[i].VCurrency^;
|
951 |
vtString :
|
952 |
SQLParams[i].AsString := strpas(PChar(params[i].VString));
|
953 |
vtPChar :
|
954 |
SQLParams[i].AsString := strpas(params[i].VPChar);
|
955 |
vtAnsiString :
|
956 |
SQLParams[i].AsString := strpas(PAnsiChar(params[i].VAnsiString));
|
957 |
vtVariant:
|
958 |
SQLParams[i].AsVariant := params[i].VVariant^;
|
959 |
vtWideChar:
|
960 |
SQLParams[i].AsString := UTF8Encode(WideCharLenToString(@params[i].VWideChar,1));
|
961 |
vtPWideChar:
|
962 |
SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VPWideChar)));
|
963 |
vtWideString:
|
964 |
SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VWideString)));
|
965 |
vtUnicodeString:
|
966 |
SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VUnicodeString)));
|
967 |
else
|
968 |
IBError(ibxeInvalidVariantType,[nil]);
|
969 |
end;
|
970 |
end;
|
971 |
end;
|
972 |
|
973 |
procedure TFBAttachment.UseServerICUChanged;
|
974 |
begin
|
975 |
// Do nothing by default
|
976 |
end;
|
977 |
|
978 |
destructor TFBAttachment.Destroy;
|
979 |
begin
|
980 |
Disconnect(true);
|
981 |
inherited Destroy;
|
982 |
end;
|
983 |
|
984 |
function TFBAttachment.getFirebirdAPI: IFirebirdAPI;
|
985 |
begin
|
986 |
Result := FFirebirdAPI;
|
987 |
end;
|
988 |
|
989 |
function TFBAttachment.getDPB: IDPB;
|
990 |
begin
|
991 |
Result := FDPB;
|
992 |
end;
|
993 |
|
994 |
function TFBAttachment.AllocateBPB: IBPB;
|
995 |
begin
|
996 |
Result := TBPB.Create(FFirebirdAPI as TFBClientAPI);
|
997 |
end;
|
998 |
|
999 |
function TFBAttachment.AllocateDIRB: IDIRB;
|
1000 |
begin
|
1001 |
Result := TDIRB.Create(FFirebirdAPI as TFBClientAPI);
|
1002 |
end;
|
1003 |
|
1004 |
procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString;
|
1005 |
aSQLDialect: integer);
|
1006 |
begin
|
1007 |
ExecImmediate(StartTransaction(TPB,taCommit),sql,aSQLDialect);
|
1008 |
end;
|
1009 |
|
1010 |
procedure TFBAttachment.ExecImmediate(transaction: ITransaction; sql: AnsiString);
|
1011 |
begin
|
1012 |
ExecImmediate(transaction,sql,FSQLDialect);
|
1013 |
end;
|
1014 |
|
1015 |
procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString);
|
1016 |
begin
|
1017 |
ExecImmediate(StartTransaction(TPB,taCommit),sql,FSQLDialect);
|
1018 |
end;
|
1019 |
|
1020 |
function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString;
|
1021 |
SQLDialect: integer; params: array of const): IResults;
|
1022 |
begin
|
1023 |
Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,SQLDialect,params);
|
1024 |
end;
|
1025 |
|
1026 |
function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString;
|
1027 |
SQLDialect: integer; params: array of const): IResults;
|
1028 |
begin
|
1029 |
with Prepare(transaction,sql,SQLDialect) do
|
1030 |
begin
|
1031 |
SetParameters(SQLParams,params);
|
1032 |
Result := Execute;
|
1033 |
end;
|
1034 |
end;
|
1035 |
|
1036 |
function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString;
|
1037 |
params: array of const): IResults;
|
1038 |
begin
|
1039 |
Result := ExecuteSQL(StartTransaction(TPB,taCommit),sql,params);
|
1040 |
end;
|
1041 |
|
1042 |
function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString;
|
1043 |
params: array of const): IResults;
|
1044 |
begin
|
1045 |
with Prepare(transaction,sql,FSQLDialect) do
|
1046 |
begin
|
1047 |
SetParameters(SQLParams,params);
|
1048 |
Result := Execute;
|
1049 |
end;
|
1050 |
end;
|
1051 |
|
1052 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
|
1053 |
aSQLDialect: integer; Scrollable: boolean): IResultSet;
|
1054 |
begin
|
1055 |
Result := OpenCursor(transaction,sql,aSQLDialect,Scrollable,[]);
|
1056 |
end;
|
1057 |
|
1058 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
|
1059 |
aSQLDialect: integer; params: array of const): IResultSet;
|
1060 |
|
1061 |
begin
|
1062 |
Result := OpenCursor(transaction,sql,FSQLDialect,false,params);
|
1063 |
end;
|
1064 |
|
1065 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
|
1066 |
Scrollable: boolean): IResultSet;
|
1067 |
begin
|
1068 |
Result := OpenCursor(transaction,sql,FSQLDialect,Scrollable,[]);
|
1069 |
end;
|
1070 |
|
1071 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
|
1072 |
params: array of const): IResultSet;
|
1073 |
begin
|
1074 |
Result := OpenCursor(transaction,sql,FSQLDialect,false,params);
|
1075 |
end;
|
1076 |
|
1077 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
|
1078 |
Scrollable: boolean; params: array of const): IResultSet;
|
1079 |
begin
|
1080 |
Result := OpenCursor(transaction,sql,FSQLDialect,Scrollable,params);
|
1081 |
end;
|
1082 |
|
1083 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
|
1084 |
aSQLDialect: integer; Scrollable: boolean;
|
1085 |
params: array of const): IResultSet;
|
1086 |
var Statement: IStatement;
|
1087 |
begin
|
1088 |
CheckHandle;
|
1089 |
Statement := Prepare(transaction,sql,aSQLDialect);
|
1090 |
SetParameters(Statement.SQLParams,params);
|
1091 |
Result := Statement.OpenCursor(Scrollable);
|
1092 |
end;
|
1093 |
|
1094 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
|
1095 |
sql: AnsiString; aSQLDialect: integer; Scrollable: boolean): IResultSet;
|
1096 |
begin
|
1097 |
Result := OpenCursor(transaction,sql,aSQLDialect,Scrollable,[]);
|
1098 |
Result.FetchNext;
|
1099 |
end;
|
1100 |
|
1101 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
|
1102 |
sql: AnsiString; aSQLDialect: integer; params: array of const): IResultSet;
|
1103 |
begin
|
1104 |
Result := OpenCursor(transaction,sql,aSQLDialect,params);
|
1105 |
Result.FetchNext;
|
1106 |
end;
|
1107 |
|
1108 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
|
1109 |
sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
|
1110 |
params: array of const): IResultSet;
|
1111 |
begin
|
1112 |
Result := OpenCursor(transaction,sql,aSQLDialect,Scrollable,params);
|
1113 |
Result.FetchNext;
|
1114 |
end;
|
1115 |
|
1116 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
|
1117 |
sql: AnsiString; Scrollable: boolean): IResultSet;
|
1118 |
begin
|
1119 |
Result := OpenCursorAtStart(transaction,sql,FSQLDialect,Scrollable,[]);
|
1120 |
end;
|
1121 |
|
1122 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
|
1123 |
sql: AnsiString; params: array of const): IResultSet;
|
1124 |
begin
|
1125 |
Result := OpenCursorAtStart(transaction,sql,FSQLDialect,params);
|
1126 |
end;
|
1127 |
|
1128 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
|
1129 |
sql: AnsiString; Scrollable: boolean; params: array of const): IResultSet;
|
1130 |
begin
|
1131 |
Result := OpenCursorAtStart(transaction,sql,FSQLDialect,Scrollable,params);
|
1132 |
end;
|
1133 |
|
1134 |
function TFBAttachment.OpenCursorAtStart(sql: AnsiString; Scrollable: boolean
|
1135 |
): IResultSet;
|
1136 |
begin
|
1137 |
Result := OpenCursorAtStart(sql,Scrollable,[]);
|
1138 |
end;
|
1139 |
|
1140 |
function TFBAttachment.OpenCursorAtStart(sql: AnsiString; Scrollable: boolean;
|
1141 |
params: array of const): IResultSet;
|
1142 |
begin
|
1143 |
Result := OpenCursorAtStart(StartTransaction([isc_tpb_read,isc_tpb_wait,isc_tpb_concurrency],taCommit),sql,FSQLDialect,
|
1144 |
Scrollable,params);
|
1145 |
end;
|
1146 |
|
1147 |
function TFBAttachment.OpenCursorAtStart(sql: AnsiString;
|
1148 |
params: array of const): IResultSet;
|
1149 |
begin
|
1150 |
Result := OpenCursorAtStart(StartTransaction([isc_tpb_read,isc_tpb_wait,isc_tpb_concurrency],taCommit),sql,FSQLDialect,
|
1151 |
false,params);
|
1152 |
end;
|
1153 |
|
1154 |
function TFBAttachment.Prepare(transaction: ITransaction; sql: AnsiString;
|
1155 |
CursorName: AnsiString): IStatement;
|
1156 |
begin
|
1157 |
Result := Prepare(transaction,sql,FSQLDialect,CursorName);
|
1158 |
end;
|
1159 |
|
1160 |
function TFBAttachment.PrepareWithNamedParameters(transaction: ITransaction;
|
1161 |
sql: AnsiString; GenerateParamNames: boolean; CaseSensitiveParams: boolean;
|
1162 |
CursorName: AnsiString): IStatement;
|
1163 |
begin
|
1164 |
Result := PrepareWithNamedParameters(transaction,sql,FSQLDialect,GenerateParamNames,CaseSensitiveParams,CursorName);
|
1165 |
end;
|
1166 |
|
1167 |
function TFBAttachment.GetEventHandler(Event: AnsiString): IEvents;
|
1168 |
var S: TStringList;
|
1169 |
begin
|
1170 |
S := TStringList.Create;
|
1171 |
try
|
1172 |
S.Add(Event);
|
1173 |
Result := GetEventHandler(S);
|
1174 |
finally
|
1175 |
S.Free;
|
1176 |
end;
|
1177 |
end;
|
1178 |
|
1179 |
function TFBAttachment.GetSQLDialect: integer;
|
1180 |
begin
|
1181 |
Result := FSQLDialect;
|
1182 |
end;
|
1183 |
|
1184 |
function TFBAttachment.CreateBlob(transaction: ITransaction; RelationName,
|
1185 |
ColumnName: AnsiString; BPB: IBPB): IBlob;
|
1186 |
begin
|
1187 |
Result := CreateBlob(transaction,GetBlobMetaData(Transaction,RelationName,ColumnName),BPB);
|
1188 |
end;
|
1189 |
|
1190 |
function TFBAttachment.OpenBlob(transaction: ITransaction; RelationName,
|
1191 |
ColumnName: AnsiString; BlobID: TISC_QUAD; BPB: IBPB): IBlob;
|
1192 |
begin
|
1193 |
Result := OpenBlob(Transaction,
|
1194 |
GetBlobMetaData(Transaction,RelationName,ColumnName),
|
1195 |
BlobID,BPB);
|
1196 |
end;
|
1197 |
|
1198 |
function TFBAttachment.OpenBlob(transaction: ITransaction; Field: ISQLData;
|
1199 |
BPB: IBPB): IBlob;
|
1200 |
begin
|
1201 |
Result := OpenBlob(Transaction,Field.GetBlobMetadata, Field.AsQuad,BPB);
|
1202 |
end;
|
1203 |
|
1204 |
function TFBAttachment.CreateArray(transaction: ITransaction; RelationName,
|
1205 |
ColumnName: AnsiString): IArray;
|
1206 |
begin
|
1207 |
Result := CreateArray(transaction,GetArrayMetaData(transaction,RelationName,ColumnName));
|
1208 |
end;
|
1209 |
|
1210 |
function TFBAttachment.OpenArray(transaction: ITransaction; RelationName,
|
1211 |
ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray;
|
1212 |
begin
|
1213 |
Result := OpenArray(transaction,
|
1214 |
GetArrayMetaData(transaction,RelationName,ColumnName),ArrayID);
|
1215 |
end;
|
1216 |
|
1217 |
function TFBAttachment.GetDBInformation(Requests: array of byte
|
1218 |
): IDBInformation;
|
1219 |
var ReqBuffer: PByte;
|
1220 |
i: integer;
|
1221 |
begin
|
1222 |
CheckHandle;
|
1223 |
if Length(Requests) = 1 then
|
1224 |
Result := GetDBInformation(Requests[0])
|
1225 |
else
|
1226 |
begin
|
1227 |
GetMem(ReqBuffer,Length(Requests));
|
1228 |
try
|
1229 |
for i := 0 to Length(Requests) - 1 do
|
1230 |
ReqBuffer[i] := Requests[i];
|
1231 |
|
1232 |
Result := GetDBInfo(ReqBuffer,Length(Requests));
|
1233 |
|
1234 |
finally
|
1235 |
FreeMem(ReqBuffer);
|
1236 |
end;
|
1237 |
end;
|
1238 |
end;
|
1239 |
|
1240 |
function TFBAttachment.GetDBInformation(Request: byte): IDBInformation;
|
1241 |
begin
|
1242 |
CheckHandle;
|
1243 |
Result := GetDBInfo(@Request,1);
|
1244 |
end;
|
1245 |
|
1246 |
function TFBAttachment.GetDBInformation(Requests: IDIRB): IDBInformation;
|
1247 |
begin
|
1248 |
CheckHandle;
|
1249 |
with Requests as TDIRB do
|
1250 |
Result := GetDBInfo(getBuffer,getDataLength);
|
1251 |
end;
|
1252 |
|
1253 |
function TFBAttachment.GetAttachmentID: integer;
|
1254 |
var Info: IDBInformation;
|
1255 |
begin
|
1256 |
Info := GetDBInformation(isc_info_attachment_id);
|
1257 |
if (Info.Count > 0) and (Info[0].getItemType = isc_info_attachment_id) then
|
1258 |
Result := Info[0].getAsInteger
|
1259 |
else
|
1260 |
Result := -1;
|
1261 |
end;
|
1262 |
|
1263 |
function TFBAttachment.GetConnectString: AnsiString;
|
1264 |
begin
|
1265 |
Result := FDatabaseName;
|
1266 |
end;
|
1267 |
|
1268 |
function TFBAttachment.GetRemoteProtocol: AnsiString;
|
1269 |
begin
|
1270 |
Result := FRemoteProtocol;
|
1271 |
end;
|
1272 |
|
1273 |
function TFBAttachment.GetAuthenticationMethod: AnsiString;
|
1274 |
begin
|
1275 |
Result := FAuthMethod;
|
1276 |
end;
|
1277 |
|
1278 |
function TFBAttachment.GetSecurityDatabase: AnsiString;
|
1279 |
begin
|
1280 |
Result := FSecDatabase;
|
1281 |
end;
|
1282 |
|
1283 |
function TFBAttachment.GetODSMajorVersion: integer;
|
1284 |
begin
|
1285 |
Result := FODSMajorVersion;
|
1286 |
end;
|
1287 |
|
1288 |
function TFBAttachment.GetODSMinorVersion: integer;
|
1289 |
begin
|
1290 |
Result := FODSMinorVersion;
|
1291 |
end;
|
1292 |
|
1293 |
function TFBAttachment.HasDecFloatSupport: boolean;
|
1294 |
begin
|
1295 |
Result := false;
|
1296 |
end;
|
1297 |
|
1298 |
function TFBAttachment.GetInlineBlobLimit: integer;
|
1299 |
begin
|
1300 |
Result := FInlineBlobLimit;
|
1301 |
end;
|
1302 |
|
1303 |
procedure TFBAttachment.SetInlineBlobLimit(limit: integer);
|
1304 |
begin
|
1305 |
if limit > 32*1024 then
|
1306 |
FInlineBlobLimit := 32*1024
|
1307 |
else
|
1308 |
FInlineBlobLimit := limit;
|
1309 |
end;
|
1310 |
|
1311 |
function TFBAttachment.HasBatchMode: boolean;
|
1312 |
begin
|
1313 |
Result := false;
|
1314 |
end;
|
1315 |
|
1316 |
function TFBAttachment.HasTable(aTableName: AnsiString): boolean;
|
1317 |
begin
|
1318 |
Result := OpenCursorAtStart(
|
1319 |
'Select count(*) From RDB$RELATIONS Where RDB$RELATION_NAME = ?',
|
1320 |
[aTableName])[0].AsInteger > 0;
|
1321 |
end;
|
1322 |
|
1323 |
function TFBAttachment.HasDefaultCharSet: boolean;
|
1324 |
begin
|
1325 |
Result := FHasDefaultCharSet
|
1326 |
end;
|
1327 |
|
1328 |
function TFBAttachment.GetDefaultCharSetID: integer;
|
1329 |
begin
|
1330 |
Result := FCharsetID;
|
1331 |
end;
|
1332 |
|
1333 |
function TFBAttachment.GetCharsetName(CharSetID: integer): AnsiString;
|
1334 |
var i: integer;
|
1335 |
begin
|
1336 |
Result := '';
|
1337 |
if (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap)) and
|
1338 |
(CharSetMap[CharSetID].CharSetID = CharSetID) then
|
1339 |
begin
|
1340 |
Result := CharSetMap[CharSetID].CharSetName;
|
1341 |
Exit;
|
1342 |
end;
|
1343 |
|
1344 |
for i := 0 to Length(FUserCharSetMap) - 1 do
|
1345 |
if FUserCharSetMap[i].CharSetID = CharSetID then
|
1346 |
begin
|
1347 |
Result := FUserCharSetMap[i].CharSetName;
|
1348 |
Exit;
|
1349 |
end;
|
1350 |
end;
|
1351 |
|
1352 |
function TFBAttachment.CharSetID2CodePage(CharSetID: integer;
|
1353 |
var CodePage: TSystemCodePage): boolean;
|
1354 |
var i: integer;
|
1355 |
begin
|
1356 |
Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap))
|
1357 |
and (CharSetMap[CharSetID].CharSetID = CharSetID);
|
1358 |
if Result then
|
1359 |
begin
|
1360 |
CodePage := CharSetMap[CharSetID].CodePage;
|
1361 |
Result := true;
|
1362 |
Exit;
|
1363 |
end;
|
1364 |
|
1365 |
for i := 0 to Length(FUserCharSetMap) - 1 do
|
1366 |
if FUserCharSetMap[i].CharSetID = CharSetID then
|
1367 |
begin
|
1368 |
CodePage := FUserCharSetMap[i].CodePage;
|
1369 |
Result := true;
|
1370 |
Exit;
|
1371 |
end;
|
1372 |
end;
|
1373 |
|
1374 |
function TFBAttachment.CodePage2CharSetID(CodePage: TSystemCodePage;
|
1375 |
var CharSetID: integer): boolean;
|
1376 |
var i: integer;
|
1377 |
begin
|
1378 |
Result := false;
|
1379 |
for i := Low(CharSetMap) to High(CharSetMap) do
|
1380 |
if (CharSetMap[i].AllowReverseLookup) and (CharSetMap[i].CodePage = CodePage) then
|
1381 |
begin
|
1382 |
CharSetID := CharSetMap[i].CharSetID;
|
1383 |
Result := true;
|
1384 |
Exit;
|
1385 |
end;
|
1386 |
|
1387 |
for i := 0 to Length(FUserCharSetMap) - 1 do
|
1388 |
if (FUserCharSetMap[i].AllowReverseLookup) and (FUserCharSetMap[i].CodePage = CodePage) then
|
1389 |
begin
|
1390 |
CharSetID := FUserCharSetMap[i].CharSetID;
|
1391 |
Result := true;
|
1392 |
Exit;
|
1393 |
end;
|
1394 |
end;
|
1395 |
|
1396 |
function TFBAttachment.CharSetName2CharSetID(CharSetName: AnsiString;
|
1397 |
var CharSetID: integer): boolean;
|
1398 |
var i: integer;
|
1399 |
begin
|
1400 |
Result := false;
|
1401 |
for i := Low(CharSetMap) to High(CharSetMap) do
|
1402 |
if AnsiCompareText(CharSetMap[i].CharSetName, CharSetName) = 0 then
|
1403 |
begin
|
1404 |
CharSetID := CharSetMap[i].CharSetID;
|
1405 |
Result := true;
|
1406 |
Exit;
|
1407 |
end;
|
1408 |
|
1409 |
for i := 0 to Length(FUserCharSetMap) - 1 do
|
1410 |
if AnsiCompareText(FUserCharSetMap[i].CharSetName, CharSetName) = 0 then
|
1411 |
begin
|
1412 |
CharSetID := FUserCharSetMap[i].CharSetID;
|
1413 |
Result := true;
|
1414 |
Exit;
|
1415 |
end;
|
1416 |
end;
|
1417 |
|
1418 |
function TFBAttachment.CharSetWidth(CharSetID: integer; var Width: integer
|
1419 |
): boolean;
|
1420 |
var i: integer;
|
1421 |
begin
|
1422 |
Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap))
|
1423 |
and (CharSetMap[CharSetID].CharSetID = CharSetID);
|
1424 |
if Result then
|
1425 |
begin
|
1426 |
Width := CharSetMap[CharSetID].CharSetWidth;
|
1427 |
Result := true;
|
1428 |
Exit;
|
1429 |
end;
|
1430 |
|
1431 |
for i := 0 to Length(FUserCharSetMap) - 1 do
|
1432 |
if FUserCharSetMap[i].CharSetID = CharSetID then
|
1433 |
begin
|
1434 |
Width := FUserCharSetMap[i].CharSetWidth;
|
1435 |
Result := true;
|
1436 |
Exit;
|
1437 |
end;
|
1438 |
end;
|
1439 |
|
1440 |
const
|
1441 |
sqlLookupCharSet = 'Select RDB$CHARACTER_SET_ID, RDB$BYTES_PER_CHARACTER From RDB$CHARACTER_SETS '+
|
1442 |
'Where RDB$SYSTEM_FLAG = 0 and RDB$CHARACTER_SET_NAME = UPPER(?)';
|
1443 |
|
1444 |
procedure TFBAttachment.RegisterCharSet(CharSetName: AnsiString;
|
1445 |
CodePage: TSystemCodePage; AllowReverseLookup: boolean; out CharSetID: integer
|
1446 |
);
|
1447 |
var CharSets: IResultSet;
|
1448 |
idx: integer;
|
1449 |
begin
|
1450 |
if CharSetName2CharSetID(CharSetName,CharSetID) then
|
1451 |
IBError(ibxeCharacterSetExists,[CharSetName]);
|
1452 |
|
1453 |
CharSets := OpenCursorAtStart(sqlLookupCharSet,[CharSetName]);
|
1454 |
if CharSets.IsEof then
|
1455 |
IBError(ibxeUnknownUserCharSet,[CharSetName]);
|
1456 |
|
1457 |
idx := Length(FUserCharSetMap);
|
1458 |
SetLength(FUserCharSetMap,idx+1);
|
1459 |
FUserCharSetMap[idx].AllowReverseLookup := AllowReverseLookup;
|
1460 |
FUserCharSetMap[idx].CharSetID := CharSets[0].AsInteger;
|
1461 |
FUserCharSetMap[idx].CharSetName := AnsiUpperCase(CharSetName);
|
1462 |
FUserCharSetMap[idx].CharSetWidth := CharSets[1].AsInteger;
|
1463 |
FUserCharSetMap[idx].CodePage := CodePage;
|
1464 |
CharSetID := CharSets[0].AsInteger;
|
1465 |
end;
|
1466 |
|
1467 |
function TFBAttachment.GetTimeZoneServices: ITimeZoneServices;
|
1468 |
begin
|
1469 |
IBError(ibxeNotSupported,[]);
|
1470 |
end;
|
1471 |
|
1472 |
function TFBAttachment.HasTimeZoneSupport: boolean;
|
1473 |
begin
|
1474 |
Result := false;
|
1475 |
end;
|
1476 |
|
1477 |
{ TDPBItem }
|
1478 |
|
1479 |
function TDPBItem.getParamTypeName: AnsiString;
|
1480 |
begin
|
1481 |
Result := DPBPrefix + DPBConstantNames[getParamType];
|
1482 |
end;
|
1483 |
|
1484 |
{ TDPB }
|
1485 |
|
1486 |
constructor TDPB.Create(api: TFBClientAPI);
|
1487 |
begin
|
1488 |
inherited Create(api);
|
1489 |
FDataLength := 1;
|
1490 |
FBuffer^ := isc_dpb_version1;
|
1491 |
end;
|
1492 |
|
1493 |
function TDPB.GetParamTypeName(ParamType: byte): Ansistring;
|
1494 |
begin
|
1495 |
if ParamType <= isc_dpb_last_dpb_constant then
|
1496 |
Result := DPBConstantNames[ParamType]
|
1497 |
else
|
1498 |
Result := '';
|
1499 |
end;
|
1500 |
|
1501 |
{$IFNDEF FPC}
|
1502 |
function TDPB.GetDPBParamTypeName(ParamType: byte): Ansistring;
|
1503 |
begin
|
1504 |
Result := GetParamTypeName(ParamType);
|
1505 |
end;
|
1506 |
{$ENDIF}
|
1507 |
|
1508 |
function TDPB.LookupItemType(ParamTypeName: AnsiString): byte;
|
1509 |
var i: byte;
|
1510 |
begin
|
1511 |
Result := 0;
|
1512 |
ParamTypeName := LowerCase(ParamTypeName);
|
1513 |
if (Pos(DPBPrefix, ParamTypeName) = 1) then
|
1514 |
Delete(ParamTypeName, 1, Length(DPBPrefix));
|
1515 |
|
1516 |
for i := 1 to isc_dpb_last_dpb_constant do
|
1517 |
if (ParamTypeName = DPBConstantNames[i]) then
|
1518 |
begin
|
1519 |
Result := i;
|
1520 |
break;
|
1521 |
end;
|
1522 |
end;
|
1523 |
|
1524 |
end.
|
1525 |
|