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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) 2016-2021 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, SyncObjs;
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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>,<attachmentid>,<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>,<attachmentid>,<session id>,<transaction no.>
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Transaction Commit retaining :
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*c:<date/time>,<attachmentid>,<session id>,<transaction no.><old transaction no.>
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Transaction Rollback:
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*R:<date/time>,<attachmentid>,<session id>,<transaction no.>
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Transaction Rollback retaining:
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*r:<date/time>,<attachmentid>,<session id>,<transaction no.><old transaction no.>
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Update/Insert/Delete
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*Q:<date/time>,<attachmentid>,<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,%d:%s' + LineEnding;
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const sTransStartJnl = '*S:''%s'',%d,%d,%d,%d:%s,%d:%s,%d' + LineEnding;
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const sTransCommitJnl = '*C:''%s'',%d,%d,%d' + LineEnding;
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const sTransCommitFailJnl = '*F:''%s'',%d,%d,%d' + LineEnding;
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const sTransCommitRetJnl = '*c:''%s'',%d,%d,%d,%d' + LineEnding;
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const sTransRollBackJnl = '*R:''%s'',%d,%d,%d' + LineEnding;
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const sTransRollBackFailJnl = '*f:''%s'',%d,%d,%d' + LineEnding;
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const sTransRollBackRetJnl = '*r:''%s'',%d,%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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FOwnsJournal: boolean;
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FCriticalSection: TCriticalSection;
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function GetDateTimeFmt: AnsiString;
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procedure WriteJnlEntry(LogEntry: 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; Completion: TTrCompletionState): 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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procedure ExecImmediateJnl(sql: AnsiString; tr: ITransaction);
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public
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constructor Create;
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destructor Destroy; override;
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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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function StartJournaling(S: TStream; 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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FAttachmentID: integer;
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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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FHasConnectionInfo: boolean;
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procedure NeedDBInfo;
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procedure NeedConnectionInfo;
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protected
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FDatabaseName: AnsiString;
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FRaiseExceptionOnConnectError: boolean;
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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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procedure ClearCachedInfo;
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function GenerateCreateDatabaseSQL(DatabaseName: AnsiString; aDPB: IDPB): AnsiString;
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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 SetSQLDialect(aValue: integer);
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procedure UseServerICUChanged; virtual;
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public
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destructor Destroy; override;
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procedure Disconnect(Force: boolean); 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 GetAttachmentID: 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 GetSQLDialect;
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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 GetCharSetID: 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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function HasFunction(aFunctionName: AnsiString): boolean;
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function HasProcedure(aProcName: 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 GetCharSetID;
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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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| 285 |
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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| 294 |
function getParamTypeName: AnsiString; override;
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end;
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| 297 |
{ TDPB }
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| 298 |
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| 299 |
TDPB = class (TCustomParamBlock<TDPBItem,IDPBItem>, IDPB)
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| 300 |
protected
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| 301 |
function LookupItemType(ParamTypeName: AnsiString): byte; override;
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| 302 |
public
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| 303 |
constructor Create(api: TFBClientAPI);
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| 304 |
function GetParamTypeName(ParamType: byte): Ansistring;
|
| 305 |
{$IFDEF FPC}
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| 306 |
function IDPB.GetDPBParamTypeName = GetParamTypeName;
|
| 307 |
{$ELSE}
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| 308 |
function GetDPBParamTypeName(ParamType: byte): Ansistring;
|
| 309 |
{$ENDIF}
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| 310 |
end;
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implementation
|
| 313 |
|
| 314 |
uses FBMessages, IBErrorCodes, FBTransaction {$IFDEF HASREQEX}, RegExpr{$ENDIF};
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| 315 |
|
| 316 |
const
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| 317 |
{Journaling}
|
| 318 |
sJournalTableName = 'IBX$JOURNALS';
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| 319 |
sSequenceName = 'IBX$SESSIONS';
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| 320 |
|
| 321 |
sqlCreateJournalTable =
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'Create Table ' + sJournalTableName + '(' +
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' IBX$SessionID Integer not null, '+
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' IBX$TransactionID Integer not null, '+
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| 325 |
' IBX$OldTransactionID Integer, '+
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| 326 |
' IBX$USER VarChar(32) Default CURRENT_USER, '+
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' IBX$CREATED TIMESTAMP Default CURRENT_TIMESTAMP, '+
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| 328 |
' Primary Key(IBX$SessionID,IBX$TransactionID)' +
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| 329 |
')';
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| 330 |
|
| 331 |
sqlCreateSequence = 'CREATE SEQUENCE ' + sSequenceName;
|
| 332 |
|
| 333 |
sqlGetNextSessionID = 'Select Gen_ID(' + sSequenceName + ',1) as SessionID From RDB$DATABASE';
|
| 334 |
|
| 335 |
sqlRecordJournalEntry = 'Insert into ' + sJournalTableName + '(IBX$SessionID,IBX$TransactionID,IBX$OldTransactionID) '+
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| 336 |
'Values(?,?,?)';
|
| 337 |
|
| 338 |
sqlCleanUpSession = 'Delete From ' + sJournalTableName + ' Where IBX$SessionID = ?';
|
| 339 |
|
| 340 |
const
|
| 341 |
CharSetMap: array [0..69] of TCharsetMap = (
|
| 342 |
(CharsetID: 0; CharSetName: 'NONE'; CharSetWidth: 1; CodePage: CP_ACP; AllowReverseLookup: true),
|
| 343 |
(CharsetID: 1; CharSetName: 'OCTETS'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true),
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| 344 |
(CharsetID: 2; CharSetName: 'ASCII'; CharSetWidth: 1; CodePage: CP_ASCII; AllowReverseLookup: true),
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| 345 |
(CharsetID: 3; CharSetName: 'UNICODE_FSS'; CharSetWidth: 3; CodePage: CP_UTF8; AllowReverseLookup: false),
|
| 346 |
(CharsetID: 4; CharSetName: 'UTF8'; CharSetWidth: 4; CodePage: CP_UTF8; AllowReverseLookup: true),
|
| 347 |
(CharsetID: 5; CharSetName: 'SJIS_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true),
|
| 348 |
(CharsetID: 6; CharSetName: 'EUCJ_0208'; CharSetWidth: 2; CodePage: 20932; AllowReverseLookup: true),
|
| 349 |
(CharsetID: 7; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
|
| 350 |
(CharsetID: 8; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
|
| 351 |
(CharsetID: 9; CharSetName: 'DOS737'; CharSetWidth: 1; CodePage: 737; AllowReverseLookup: true),
|
| 352 |
(CharsetID: 10; CharSetName: 'DOS437'; CharSetWidth: 1; CodePage: 437; AllowReverseLookup: true),
|
| 353 |
(CharsetID: 11; CharSetName: 'DOS850'; CharSetWidth: 1; CodePage: 850; AllowReverseLookup: true),
|
| 354 |
(CharsetID: 12; CharSetName: 'DOS865'; CharSetWidth: 1; CodePage: 865; AllowReverseLookup: true),
|
| 355 |
(CharsetID: 13; CharSetName: 'DOS860'; CharSetWidth: 1; CodePage: 860; AllowReverseLookup: true),
|
| 356 |
(CharsetID: 14; CharSetName: 'DOS863'; CharSetWidth: 1; CodePage: 863; AllowReverseLookup: true),
|
| 357 |
(CharsetID: 15; CharSetName: 'DOS775'; CharSetWidth: 1; CodePage: 775; AllowReverseLookup: true),
|
| 358 |
(CharsetID: 16; CharSetName: 'DOS858'; CharSetWidth: 1; CodePage: 858; AllowReverseLookup: true),
|
| 359 |
(CharsetID: 17; CharSetName: 'DOS862'; CharSetWidth: 1; CodePage: 862; AllowReverseLookup: true),
|
| 360 |
(CharsetID: 18; CharSetName: 'DOS864'; CharSetWidth: 1; CodePage: 864; AllowReverseLookup: true),
|
| 361 |
(CharsetID: 19; CharSetName: 'NEXT'; CharSetWidth: 1; CodePage: CP_NONE; AllowReverseLookup: true),
|
| 362 |
(CharsetID: 20; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: true),
|
| 363 |
(CharsetID: 21; CharSetName: 'ISO8859_1'; CharSetWidth: 1; CodePage: 28591; AllowReverseLookup: true),
|
| 364 |
(CharsetID: 22; CharSetName: 'ISO8859_2'; CharSetWidth: 1; CodePage: 28592; AllowReverseLookup: true),
|
| 365 |
(CharsetID: 23; CharSetName: 'ISO8859_3'; CharSetWidth: 1; CodePage: 28593; AllowReverseLookup: true),
|
| 366 |
(CharsetID: 24; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 367 |
(CharsetID: 25; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 368 |
(CharsetID: 26; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 369 |
(CharsetID: 27; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 370 |
(CharsetID: 28; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 371 |
(CharsetID: 29; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 372 |
(CharsetID: 30; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 373 |
(CharsetID: 31; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 374 |
(CharsetID: 32; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 375 |
(CharsetID: 33; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 376 |
(CharsetID: 34; CharSetName: 'ISO8859_4'; CharSetWidth: 1; CodePage: 28594; AllowReverseLookup: true),
|
| 377 |
(CharsetID: 35; CharSetName: 'ISO8859_5'; CharSetWidth: 1; CodePage: 28595; AllowReverseLookup: true),
|
| 378 |
(CharsetID: 36; CharSetName: 'ISO8859_6'; CharSetWidth: 1; CodePage: 28596; AllowReverseLookup: true),
|
| 379 |
(CharsetID: 37; CharSetName: 'ISO8859_7'; CharSetWidth: 1; CodePage: 28597; AllowReverseLookup: true),
|
| 380 |
(CharsetID: 38; CharSetName: 'ISO8859_8'; CharSetWidth: 1; CodePage: 28598; AllowReverseLookup: true),
|
| 381 |
(CharsetID: 39; CharSetName: 'ISO8859_9'; CharSetWidth: 1; CodePage: 28599; AllowReverseLookup: true),
|
| 382 |
(CharsetID: 40; CharSetName: 'ISO8859_13'; CharSetWidth: 1; CodePage: 28603; AllowReverseLookup: true),
|
| 383 |
(CharsetID: 41; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 384 |
(CharsetID: 42; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 385 |
(CharsetID: 43; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 386 |
(CharsetID: 44; CharSetName: 'KSC_5601'; CharSetWidth: 2; CodePage: 949; AllowReverseLookup: true),
|
| 387 |
(CharsetID: 45; CharSetName: 'DOS852'; CharSetWidth: 1; CodePage: 852; AllowReverseLookup: true),
|
| 388 |
(CharsetID: 46; CharSetName: 'DOS857'; CharSetWidth: 1; CodePage: 857; AllowReverseLookup: true),
|
| 389 |
(CharsetID: 47; CharSetName: 'DOS861'; CharSetWidth: 1; CodePage: 861; AllowReverseLookup: true),
|
| 390 |
(CharsetID: 48; CharSetName: 'DOS866'; CharSetWidth: 1; CodePage: 866; AllowReverseLookup: true),
|
| 391 |
(CharsetID: 49; CharSetName: 'DOS869'; CharSetWidth: 1; CodePage: 869; AllowReverseLookup: true),
|
| 392 |
(CharsetID: 50; CharSetName: 'CYRL'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true),
|
| 393 |
(CharsetID: 51; CharSetName: 'WIN1250'; CharSetWidth: 1; CodePage: 1250; AllowReverseLookup: true),
|
| 394 |
(CharsetID: 52; CharSetName: 'WIN1251'; CharSetWidth: 1; CodePage: 1251; AllowReverseLookup: true),
|
| 395 |
(CharsetID: 53; CharSetName: 'WIN1252'; CharSetWidth: 1; CodePage: 1252; AllowReverseLookup: true),
|
| 396 |
(CharsetID: 54; CharSetName: 'WIN1253'; CharSetWidth: 1; CodePage: 1253; AllowReverseLookup: true),
|
| 397 |
(CharsetID: 55; CharSetName: 'WIN1254'; CharSetWidth: 1; CodePage: 1254; AllowReverseLookup: true),
|
| 398 |
(CharsetID: 56; CharSetName: 'BIG_5'; CharSetWidth: 2; CodePage: 950; AllowReverseLookup: true),
|
| 399 |
(CharsetID: 57; CharSetName: 'GB_2312'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true),
|
| 400 |
(CharsetID: 58; CharSetName: 'WIN1255'; CharSetWidth: 1; CodePage: 1255; AllowReverseLookup: true),
|
| 401 |
(CharsetID: 59; CharSetName: 'WIN1256'; CharSetWidth: 1; CodePage: 1256; AllowReverseLookup: true),
|
| 402 |
(CharsetID: 60; CharSetName: 'WIN1257'; CharSetWidth: 1; CodePage: 1257; AllowReverseLookup: true),
|
| 403 |
(CharsetID: 61; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 404 |
(CharsetID: 62; CharSetName: 'Unknown'; CharSetWidth: 0; CodePage: CP_NONE; AllowReverseLookup: false),
|
| 405 |
(CharsetID: 63; CharSetName: 'KOI8R'; CharSetWidth: 1; CodePage: 20866; AllowReverseLookup: true),
|
| 406 |
(CharsetID: 64; CharSetName: 'KOI8U'; CharSetWidth: 1; CodePage: 21866; AllowReverseLookup: true),
|
| 407 |
(CharsetID: 65; CharSetName: 'WIN1258'; CharSetWidth: 1; CodePage: 1258; AllowReverseLookup: true),
|
| 408 |
(CharsetID: 66; CharSetName: 'TIS620'; CharSetWidth: 1; CodePage: 874; AllowReverseLookup: true),
|
| 409 |
(CharsetID: 67; CharSetName: 'GBK'; CharSetWidth: 2; CodePage: 936; AllowReverseLookup: true),
|
| 410 |
(CharsetID: 68; CharSetName: 'CP943C'; CharSetWidth: 2; CodePage: 943; AllowReverseLookup: true),
|
| 411 |
(CharsetID: 69; CharSetName: 'GB18030'; CharSetWidth: 4; CodePage: 54936; AllowReverseLookup: true)
|
| 412 |
);
|
| 413 |
|
| 414 |
const
|
| 415 |
isc_dpb_last_dpb_constant = isc_dpb_decfloat_traps;
|
| 416 |
|
| 417 |
DPBConstantNames: array[1..isc_dpb_last_dpb_constant] of string = (
|
| 418 |
'cdd_pathname',
|
| 419 |
'allocation',
|
| 420 |
'journal',
|
| 421 |
'page_size',
|
| 422 |
'num_buffers',
|
| 423 |
'buffer_length',
|
| 424 |
'debug',
|
| 425 |
'garbage_collect',
|
| 426 |
'verify',
|
| 427 |
'sweep',
|
| 428 |
'enable_journal',
|
| 429 |
'disable_journal',
|
| 430 |
'dbkey_scope',
|
| 431 |
'number_of_users',
|
| 432 |
'trace',
|
| 433 |
'no_garbage_collect',
|
| 434 |
'damaged',
|
| 435 |
'license',
|
| 436 |
'sys_user_name',
|
| 437 |
'encrypt_key',
|
| 438 |
'activate_shadow',
|
| 439 |
'sweep_interval',
|
| 440 |
'delete_shadow',
|
| 441 |
'force_write',
|
| 442 |
'begin_log',
|
| 443 |
'quit_log',
|
| 444 |
'no_reserve',
|
| 445 |
'user_name',
|
| 446 |
'password',
|
| 447 |
'password_enc',
|
| 448 |
'sys_user_name_enc',
|
| 449 |
'interp',
|
| 450 |
'online_dump',
|
| 451 |
'old_file_size',
|
| 452 |
'old_num_files',
|
| 453 |
'old_file',
|
| 454 |
'old_start_page',
|
| 455 |
'old_start_seqno',
|
| 456 |
'old_start_file',
|
| 457 |
'drop_walfile',
|
| 458 |
'old_dump_id',
|
| 459 |
'wal_backup_dir',
|
| 460 |
'wal_chkptlen',
|
| 461 |
'wal_numbufs',
|
| 462 |
'wal_bufsize',
|
| 463 |
'wal_grp_cmt_wait',
|
| 464 |
'lc_messages',
|
| 465 |
'lc_ctype',
|
| 466 |
'cache_manager',
|
| 467 |
'shutdown',
|
| 468 |
'online',
|
| 469 |
'shutdown_delay',
|
| 470 |
'reserved',
|
| 471 |
'overwrite',
|
| 472 |
'sec_attach',
|
| 473 |
'disable_wal',
|
| 474 |
'connect_timeout',
|
| 475 |
'dummy_packet_interval',
|
| 476 |
'gbak_attach',
|
| 477 |
'sql_role_name',
|
| 478 |
'set_page_buffers',
|
| 479 |
'working_directory',
|
| 480 |
'sql_dialect',
|
| 481 |
'set_db_readonly',
|
| 482 |
'set_db_sql_dialect',
|
| 483 |
'gfix_attach',
|
| 484 |
'gstat_attach',
|
| 485 |
'set_db_charset',
|
| 486 |
'gsec_attach',
|
| 487 |
'address_path' ,
|
| 488 |
'process_id',
|
| 489 |
'no_db_triggers',
|
| 490 |
'trusted_auth',
|
| 491 |
'process_name',
|
| 492 |
'trusted_role',
|
| 493 |
'org_filename',
|
| 494 |
'utf8_filename',
|
| 495 |
'ext_call_depth',
|
| 496 |
'auth_block',
|
| 497 |
'client_version',
|
| 498 |
'remote_protocol',
|
| 499 |
'host_name',
|
| 500 |
'os_user',
|
| 501 |
'specific_auth_data',
|
| 502 |
'auth_plugin_list',
|
| 503 |
'auth_plugin_name',
|
| 504 |
'config',
|
| 505 |
'nolinger',
|
| 506 |
'reset_icu',
|
| 507 |
'map_attach',
|
| 508 |
'session_time_zone',
|
| 509 |
'set_db_replica',
|
| 510 |
'set_bind',
|
| 511 |
'decfloat_round',
|
| 512 |
'decfloat_traps'
|
| 513 |
);
|
| 514 |
|
| 515 |
type
|
| 516 |
|
| 517 |
{ TQueryProcessor }
|
| 518 |
|
| 519 |
TQueryProcessor=class(TSQLTokeniser)
|
| 520 |
private
|
| 521 |
FInString: AnsiString;
|
| 522 |
FIndex: integer;
|
| 523 |
FStmt: IStatement;
|
| 524 |
function DoExecute: AnsiString;
|
| 525 |
function GetParamValue(ParamIndex: integer): AnsiString;
|
| 526 |
protected
|
| 527 |
function GetChar: AnsiChar; override;
|
| 528 |
public
|
| 529 |
class function Execute(Stmt: IStatement): AnsiString;
|
| 530 |
end;
|
| 531 |
|
| 532 |
{ TQueryProcessor }
|
| 533 |
|
| 534 |
function TQueryProcessor.DoExecute: AnsiString;
|
| 535 |
var token: TSQLTokens;
|
| 536 |
ParamIndex: integer;
|
| 537 |
begin
|
| 538 |
Result := '';
|
| 539 |
ParamIndex := 0;
|
| 540 |
|
| 541 |
while not EOF do
|
| 542 |
begin
|
| 543 |
token := GetNextToken;
|
| 544 |
case token of
|
| 545 |
sqltPlaceHolder:
|
| 546 |
begin
|
| 547 |
Result := Result + GetParamValue(ParamIndex);
|
| 548 |
Inc(ParamIndex);
|
| 549 |
end;
|
| 550 |
|
| 551 |
sqltIdentifierInDoubleQuotes:
|
| 552 |
Result := Result + '"' + TokenText + '"';
|
| 553 |
else
|
| 554 |
Result := Result + TokenText;
|
| 555 |
end;
|
| 556 |
end;
|
| 557 |
end;
|
| 558 |
|
| 559 |
function TQueryProcessor.GetParamValue(ParamIndex: integer): AnsiString;
|
| 560 |
|
| 561 |
function formatWithTZ(fmt: AnsiString): AnsiString;
|
| 562 |
var aDateTime: TDateTime;
|
| 563 |
aTimeZone: AnsiString;
|
| 564 |
dstOffset: smallint;
|
| 565 |
begin
|
| 566 |
with FStmt.GetAttachment.GetTimeZoneServices, FStmt.SQLParams[ParamIndex] do
|
| 567 |
begin
|
| 568 |
if GetTZTextOption = tzGMT then
|
| 569 |
Result := FBFormatDateTime(fmt,GetAsUTCDateTime)
|
| 570 |
else
|
| 571 |
begin
|
| 572 |
GetAsDateTime(aDateTime,dstOffset,aTimeZone);
|
| 573 |
if GetTZTextOption = tzOffset then
|
| 574 |
Result := FBFormatDateTime(fmt,aDateTime) + ' ' + FormatTimeZoneOffset(dstOffset)
|
| 575 |
else
|
| 576 |
Result := FBFormatDateTime(fmt,aDateTime) + ' ' + aTimeZone;
|
| 577 |
end;
|
| 578 |
end;
|
| 579 |
end;
|
| 580 |
|
| 581 |
begin
|
| 582 |
with FStmt.SQLParams[ParamIndex] do
|
| 583 |
begin
|
| 584 |
if IsNull then
|
| 585 |
Result := 'NULL'
|
| 586 |
else
|
| 587 |
case getColMetadata.GetSQLType of
|
| 588 |
SQL_BLOB:
|
| 589 |
if GetSQLType = SQL_BLOB then
|
| 590 |
begin
|
| 591 |
if getSubType = 1 then {string}
|
| 592 |
Result := '''' + SQLSafeString(GetAsString) + ''''
|
| 593 |
else
|
| 594 |
Result := TSQLXMLReader.FormatBlob(GetAsString,getSubType);
|
| 595 |
end
|
| 596 |
else
|
| 597 |
Result := '''' + SQLSafeString(GetAsString) + '''';
|
| 598 |
|
| 599 |
SQL_ARRAY:
|
| 600 |
Result := TSQLXMLReader.FormatArray(getAsArray);
|
| 601 |
|
| 602 |
SQL_VARYING,
|
| 603 |
SQL_TEXT:
|
| 604 |
Result := '''' + SQLSafeString(GetAsString) + '''';
|
| 605 |
|
| 606 |
SQL_TYPE_DATE:
|
| 607 |
Result := '''' + SQLSafeString(FormatDateTime('yyyy-mm-dd',GetAsDateTime)) + '''';
|
| 608 |
|
| 609 |
SQL_TIMESTAMP:
|
| 610 |
Result := '''' + SQLSafeString(FBFormatDateTime('yyyy-mm-dd hh:mm:ss.zzzz',GetAsDateTime)) + '''';
|
| 611 |
|
| 612 |
SQL_TYPE_TIME:
|
| 613 |
Result := '''' + SQLSafeString(FBFormatDateTime('hh:mm:ss.zzzz',GetAsDateTime)) + '''';
|
| 614 |
|
| 615 |
SQL_TIMESTAMP_TZ_EX,
|
| 616 |
SQL_TIMESTAMP_TZ:
|
| 617 |
Result := '''' + SQLSafeString(formatWithTZ('yyyy-mm-dd hh:mm:ss.zzzz')) + '''';
|
| 618 |
|
| 619 |
SQL_TIME_TZ_EX,
|
| 620 |
SQL_TIME_TZ:
|
| 621 |
Result := '''' + SQLSafeString(formatWithTZ('hh:mm:ss.zzzz')) + '''';
|
| 622 |
|
| 623 |
else
|
| 624 |
Result := GetAsString;
|
| 625 |
end;
|
| 626 |
end;
|
| 627 |
end;
|
| 628 |
|
| 629 |
function TQueryProcessor.GetChar: AnsiChar;
|
| 630 |
begin
|
| 631 |
if FIndex <= Length(FInString) then
|
| 632 |
begin
|
| 633 |
Result := FInString[FIndex];
|
| 634 |
Inc(FIndex);
|
| 635 |
end
|
| 636 |
else
|
| 637 |
Result := #0;
|
| 638 |
end;
|
| 639 |
|
| 640 |
class function TQueryProcessor.Execute(Stmt: IStatement): AnsiString;
|
| 641 |
begin
|
| 642 |
if not Stmt.IsPrepared then
|
| 643 |
IBError(ibxeSQLClosed,[]);
|
| 644 |
with self.Create do
|
| 645 |
try
|
| 646 |
FStmt := Stmt;
|
| 647 |
FInString := Stmt.GetProcessedSQLText;
|
| 648 |
FIndex := 1;
|
| 649 |
Result := Trim(DoExecute);
|
| 650 |
finally
|
| 651 |
Free;
|
| 652 |
end;
|
| 653 |
end;
|
| 654 |
|
| 655 |
{ TFBJournaling }
|
| 656 |
|
| 657 |
function TFBJournaling.GetDateTimeFmt: AnsiString;
|
| 658 |
begin
|
| 659 |
{$IF declared(DefaultFormatSettings)}
|
| 660 |
with DefaultFormatSettings do
|
| 661 |
{$ELSE}
|
| 662 |
{$IF declared(FormatSettings)}
|
| 663 |
with FormatSettings do
|
| 664 |
{$IFEND}
|
| 665 |
{$IFEND}
|
| 666 |
Result := ShortDateFormat + ' ' + LongTimeFormat + '.zzzz'
|
| 667 |
end;
|
| 668 |
|
| 669 |
procedure TFBJournaling.WriteJnlEntry(LogEntry: AnsiString);
|
| 670 |
begin
|
| 671 |
if assigned(FJournalFileStream) then
|
| 672 |
begin
|
| 673 |
FCriticalSection.Acquire;
|
| 674 |
try
|
| 675 |
FJournalFileStream.Write(LogEntry[1],Length(LogEntry));
|
| 676 |
finally
|
| 677 |
FCriticalSection.Release;
|
| 678 |
end;
|
| 679 |
end;
|
| 680 |
|
| 681 |
end;
|
| 682 |
|
| 683 |
procedure TFBJournaling.EndSession(RetainJournal: boolean);
|
| 684 |
begin
|
| 685 |
if JournalingActive and (FJournalFileStream <> nil) then
|
| 686 |
begin
|
| 687 |
if FOwnsJournal then
|
| 688 |
FJournalFileStream.Free;
|
| 689 |
FJournalFileStream := nil;
|
| 690 |
|
| 691 |
if not (joNoServerTable in FOptions) and not RetainJournal then
|
| 692 |
try
|
| 693 |
GetAttachment.ExecuteSQL([isc_tpb_write,isc_tpb_wait,isc_tpb_consistency],
|
| 694 |
sqlCleanUpSession,[FSessionID]);
|
| 695 |
if FileExists(FJournalFilePath) then
|
| 696 |
sysutils.DeleteFile(FJournalFilePath);
|
| 697 |
except On E: EIBInterBaseError do
|
| 698 |
if E.IBErrorCode <> isc_lost_db_connection then
|
| 699 |
raise;
|
| 700 |
{ignore - do not delete journal if database gone away}
|
| 701 |
end;
|
| 702 |
FSessionID := -1;
|
| 703 |
FJournalFilePath := '';
|
| 704 |
end;
|
| 705 |
end;
|
| 706 |
|
| 707 |
procedure TFBJournaling.Disconnect(Force: boolean);
|
| 708 |
begin
|
| 709 |
if JournalingActive then
|
| 710 |
EndSession(Force);
|
| 711 |
end;
|
| 712 |
|
| 713 |
procedure TFBJournaling.TransactionStart(Tr: ITransaction);
|
| 714 |
var LogEntry: AnsiString;
|
| 715 |
TPBText: AnsiString;
|
| 716 |
begin
|
| 717 |
if not (joNoServerTable in FOptions) then
|
| 718 |
try
|
| 719 |
FDoNotJournal := true;
|
| 720 |
GetAttachment.ExecuteSQL(Tr,sqlRecordJournalEntry,[FSessionID,Tr.GetTransactionID,NULL]);
|
| 721 |
finally
|
| 722 |
FDoNotJournal := false;
|
| 723 |
end;
|
| 724 |
TPBText := Tr.getTPB.AsText;
|
| 725 |
LogEntry := Format(sTransStartJnl,[FBFormatDateTime(GetDateTimeFmt,Now),
|
| 726 |
GetAttachment.GetAttachmentID,
|
| 727 |
FSessionID,
|
| 728 |
Tr.GetTransactionID,
|
| 729 |
Length(Tr.TransactionName),
|
| 730 |
Tr.TransactionName,
|
| 731 |
Length(TPBText),TPBText,
|
| 732 |
ord(tr.GetDefaultCompletion)]);
|
| 733 |
WriteJnlEntry(LogEntry);
|
| 734 |
end;
|
| 735 |
|
| 736 |
function TFBJournaling.TransactionEnd(TransactionID: integer;
|
| 737 |
Completion: TTrCompletionState): boolean;
|
| 738 |
|
| 739 |
var LogEntry: AnsiString;
|
| 740 |
begin
|
| 741 |
Result := false;
|
| 742 |
case Completion of
|
| 743 |
trRolledback:
|
| 744 |
begin
|
| 745 |
LogEntry := Format(sTransRollbackJnl,[FBFormatDateTime(GetDateTimeFmt,Now),
|
| 746 |
GetAttachment.GetAttachmentID,
|
| 747 |
FSessionID,TransactionID]);
|
| 748 |
Result := true;
|
| 749 |
end;
|
| 750 |
|
| 751 |
trRollbackFailed:
|
| 752 |
begin
|
| 753 |
LogEntry := Format(sTransRollbackFailJnl,[FBFormatDateTime(GetDateTimeFmt,Now),
|
| 754 |
GetAttachment.GetAttachmentID,
|
| 755 |
FSessionID,TransactionID]);
|
| 756 |
Result := true;
|
| 757 |
end;
|
| 758 |
|
| 759 |
trCommitted:
|
| 760 |
begin
|
| 761 |
LogEntry := Format(sTransCommitJnl,[FBFormatDateTime(GetDateTimeFmt,Now),
|
| 762 |
GetAttachment.GetAttachmentID,
|
| 763 |
FSessionID,TransactionID]);
|
| 764 |
Result := true;
|
| 765 |
end;
|
| 766 |
|
| 767 |
trCommitFailed:
|
| 768 |
begin
|
| 769 |
LogEntry := Format(sTransCommitFailJnl,[FBFormatDateTime(GetDateTimeFmt,Now),
|
| 770 |
GetAttachment.GetAttachmentID,
|
| 771 |
FSessionID,TransactionID]);
|
| 772 |
Result := true;
|
| 773 |
end;
|
| 774 |
end;
|
| 775 |
WriteJnlEntry(LogEntry);
|
| 776 |
end;
|
| 777 |
|
| 778 |
procedure TFBJournaling.TransactionRetained(Tr: ITransaction;
|
| 779 |
OldTransactionID: integer; Action: TTransactionAction);
|
| 780 |
var LogEntry: AnsiString;
|
| 781 |
begin
|
| 782 |
case Action of
|
| 783 |
TACommitRetaining:
|
| 784 |
LogEntry := Format(sTransCommitRetJnl,[FBFormatDateTime(GetDateTimeFmt,Now),
|
| 785 |
GetAttachment.GetAttachmentID,
|
| 786 |
FSessionID,Tr.GetTransactionID,OldTransactionID]);
|
| 787 |
TARollbackRetaining:
|
| 788 |
LogEntry := Format(sTransRollbackRetJnl,[FBFormatDateTime(GetDateTimeFmt,Now),
|
| 789 |
GetAttachment.GetAttachmentID,
|
| 790 |
FSessionID,Tr.GetTransactionID,OldTransactionID]);
|
| 791 |
end;
|
| 792 |
WriteJnlEntry(LogEntry);
|
| 793 |
|
| 794 |
if not (joNoServerTable in FOptions) then
|
| 795 |
try
|
| 796 |
FDoNotJournal := true;
|
| 797 |
GetAttachment.ExecuteSQL(Tr,sqlRecordJournalEntry,[FSessionID,Tr.GetTransactionID,OldTransactionID]);
|
| 798 |
finally
|
| 799 |
FDoNotJournal := false;
|
| 800 |
end;
|
| 801 |
end;
|
| 802 |
|
| 803 |
procedure TFBJournaling.ExecQuery(Stmt: IStatement);
|
| 804 |
var SQL: AnsiString;
|
| 805 |
LogEntry: AnsiString;
|
| 806 |
begin
|
| 807 |
SQL := TQueryProcessor.Execute(Stmt);
|
| 808 |
LogEntry := Format(sQueryJournal,[FBFormatDateTime(GetDateTimeFmt,Now),
|
| 809 |
GetAttachment.GetAttachmentID,
|
| 810 |
FSessionID,
|
| 811 |
Stmt.GetTransaction.GetTransactionID,
|
| 812 |
Length(SQL),SQL]);
|
| 813 |
WriteJnlEntry(LogEntry);
|
| 814 |
end;
|
| 815 |
|
| 816 |
procedure TFBJournaling.ExecImmediateJnl(sql: AnsiString; tr: ITransaction);
|
| 817 |
var LogEntry: AnsiString;
|
| 818 |
begin
|
| 819 |
LogEntry := Format(sQueryJournal,[FBFormatDateTime(GetDateTimeFmt,Now),
|
| 820 |
GetAttachment.GetAttachmentID,
|
| 821 |
FSessionID,
|
| 822 |
tr.GetTransactionID,
|
| 823 |
Length(sql),sql]);
|
| 824 |
WriteJnlEntry(LogEntry);
|
| 825 |
end;
|
| 826 |
|
| 827 |
constructor TFBJournaling.Create;
|
| 828 |
begin
|
| 829 |
inherited Create;
|
| 830 |
FCriticalSection := TCriticalSection.Create;
|
| 831 |
end;
|
| 832 |
|
| 833 |
destructor TFBJournaling.Destroy;
|
| 834 |
begin
|
| 835 |
if FCriticalSection <> nil then
|
| 836 |
FCriticalSection.Free;
|
| 837 |
inherited Destroy;
|
| 838 |
end;
|
| 839 |
|
| 840 |
function TFBJournaling.JournalingActive: boolean;
|
| 841 |
begin
|
| 842 |
Result := (FJournalFileStream <> nil) and not FDoNotJournal;
|
| 843 |
end;
|
| 844 |
|
| 845 |
function TFBJournaling.GetJournalOptions: TJournalOptions;
|
| 846 |
begin
|
| 847 |
Result := FOptions;
|
| 848 |
end;
|
| 849 |
|
| 850 |
function TFBJournaling.StartJournaling(aJournalLogFile: AnsiString): integer;
|
| 851 |
begin
|
| 852 |
Result := StartJournaling(aJournalLogFile,[joReadWriteTransactions,joModifyQueries]);
|
| 853 |
end;
|
| 854 |
|
| 855 |
function TFBJournaling.StartJournaling(aJournalLogFile: AnsiString;
|
| 856 |
Options: TJournalOptions): integer;
|
| 857 |
begin
|
| 858 |
try
|
| 859 |
StartJournaling(TFileStream.Create(aJournalLogFile,fmCreate),Options);
|
| 860 |
FOwnsJournal := true;
|
| 861 |
finally
|
| 862 |
FJournalFilePath := aJournalLogFile;
|
| 863 |
end;
|
| 864 |
end;
|
| 865 |
|
| 866 |
function TFBJournaling.StartJournaling(S: TStream; Options: TJournalOptions
|
| 867 |
): integer;
|
| 868 |
begin
|
| 869 |
FOptions := Options;
|
| 870 |
if not (joNoServerTable in FOptions) then
|
| 871 |
with GetAttachment do
|
| 872 |
begin
|
| 873 |
if not HasTable(sJournalTableName) then
|
| 874 |
begin
|
| 875 |
ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_consistency],sqlCreateJournalTable);
|
| 876 |
ExecImmediate([isc_tpb_write,isc_tpb_wait,isc_tpb_consistency],sqlCreateSequence);
|
| 877 |
end;
|
| 878 |
FSessionID := OpenCursorAtStart(sqlGetNextSessionID)[0].AsInteger;
|
| 879 |
end;
|
| 880 |
FJournalFileStream := S;
|
| 881 |
FOwnsJournal := false;
|
| 882 |
Result := FSessionID;
|
| 883 |
end;
|
| 884 |
|
| 885 |
procedure TFBJournaling.StopJournaling(RetainJournal: boolean);
|
| 886 |
begin
|
| 887 |
EndSession(RetainJournal);
|
| 888 |
end;
|
| 889 |
|
| 890 |
{ TFBAttachment }
|
| 891 |
|
| 892 |
procedure TFBAttachment.NeedConnectionInfo;
|
| 893 |
var Stmt: IStatement;
|
| 894 |
ResultSet: IResultSet;
|
| 895 |
Param: IDPBItem;
|
| 896 |
begin
|
| 897 |
if not IsConnected or FHasConnectionInfo then Exit;
|
| 898 |
NeedDBInfo;
|
| 899 |
FCharSetID := 0;
|
| 900 |
FRemoteProtocol := '';
|
| 901 |
FAuthMethod := 'Legacy_Auth';
|
| 902 |
FSecDatabase := 'Default';
|
| 903 |
if FODSMajorVersion > 11 then
|
| 904 |
begin
|
| 905 |
Stmt := Prepare(StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit),
|
| 906 |
'Select MON$CHARACTER_SET_ID, MON$REMOTE_PROTOCOL, MON$AUTH_METHOD, MON$SEC_DATABASE From MON$ATTACHMENTS, MON$DATABASE '+
|
| 907 |
'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION ');
|
| 908 |
ResultSet := Stmt.OpenCursor;
|
| 909 |
if ResultSet.FetchNext then
|
| 910 |
begin
|
| 911 |
FCharSetID := ResultSet[0].AsInteger;
|
| 912 |
FRemoteProtocol := Trim(ResultSet[1].AsString);
|
| 913 |
FAuthMethod := Trim(ResultSet[2].AsString);
|
| 914 |
FSecDatabase := Trim(ResultSet[3].AsString);
|
| 915 |
end
|
| 916 |
end
|
| 917 |
else
|
| 918 |
if (FODSMajorVersion = 11) and (FODSMinorVersion >= 1) then
|
| 919 |
begin
|
| 920 |
Stmt := Prepare(StartTransaction([isc_tpb_read,isc_tpb_nowait,isc_tpb_concurrency],taCommit),
|
| 921 |
'Select MON$CHARACTER_SET_ID, MON$REMOTE_PROTOCOL From MON$ATTACHMENTS '+
|
| 922 |
'Where MON$ATTACHMENT_ID = CURRENT_CONNECTION');
|
| 923 |
ResultSet := Stmt.OpenCursor;
|
| 924 |
if ResultSet.FetchNext then
|
| 925 |
begin
|
| 926 |
FCharSetID := ResultSet[0].AsInteger;
|
| 927 |
FRemoteProtocol := Trim(ResultSet[1].AsString);
|
| 928 |
end
|
| 929 |
end
|
| 930 |
else
|
| 931 |
if DPB <> nil then
|
| 932 |
begin
|
| 933 |
Param := DPB.Find(isc_dpb_lc_ctype);
|
| 934 |
if (Param = nil) or not CharSetName2CharSetID(Param.AsString,FCharSetID) then
|
| 935 |
FCharSetID := 0;
|
| 936 |
case GetProtocol(FDatabaseName) of
|
| 937 |
TCP: FRemoteProtocol := 'TCPv4';
|
| 938 |
Local: FRemoteProtocol := '';
|
| 939 |
NamedPipe: FRemoteProtocol := 'Netbui';
|
| 940 |
SPX: FRemoteProtocol := 'SPX'
|
| 941 |
end;
|
| 942 |
end;
|
| 943 |
FHasDefaultCharSet := CharSetID2CodePage(FCharSetID,FCodePage) and (FCharSetID > 1);
|
| 944 |
FHasConnectionInfo := true;
|
| 945 |
end;
|
| 946 |
|
| 947 |
procedure TFBAttachment.NeedDBInfo;
|
| 948 |
var DBInfo: IDBInformation;
|
| 949 |
i: integer;
|
| 950 |
begin
|
| 951 |
if not IsConnected or (FAttachmentID > 0) then Exit;
|
| 952 |
DBInfo := GetDBInformation([isc_info_db_id,isc_info_ods_version,isc_info_ods_minor_version,
|
| 953 |
isc_info_db_SQL_Dialect, isc_info_attachment_id]);
|
| 954 |
for i := 0 to DBInfo.GetCount - 1 do
|
| 955 |
with DBInfo[i] do
|
| 956 |
case getItemType of
|
| 957 |
isc_info_ods_minor_version:
|
| 958 |
FODSMinorVersion := getAsInteger;
|
| 959 |
isc_info_ods_version:
|
| 960 |
FODSMajorVersion := getAsInteger;
|
| 961 |
isc_info_db_SQL_Dialect:
|
| 962 |
FSQLDialect := getAsInteger;
|
| 963 |
isc_info_attachment_id:
|
| 964 |
FAttachmentID := getAsInteger;
|
| 965 |
end;
|
| 966 |
end;
|
| 967 |
|
| 968 |
constructor TFBAttachment.Create(api: TFBClientAPI; DatabaseName: AnsiString;
|
| 969 |
DPB: IDPB; RaiseExceptionOnConnectError: boolean);
|
| 970 |
begin
|
| 971 |
inherited Create;
|
| 972 |
FFirebirdAPI := api.GetAPI; {Keep reference to interface}
|
| 973 |
FSQLDialect := 3;
|
| 974 |
FDatabaseName := DatabaseName;
|
| 975 |
SetLength(FUserCharSetMap,0);
|
| 976 |
ClearCachedInfo;
|
| 977 |
FInlineBlobLimit := DefaultMaxInlineBlobLimit;
|
| 978 |
FDPB := DPB;
|
| 979 |
FRaiseExceptionOnConnectError := RaiseExceptionOnConnectError;
|
| 980 |
end;
|
| 981 |
|
| 982 |
procedure TFBAttachment.ClearCachedInfo;
|
| 983 |
begin
|
| 984 |
FHasDefaultCharSet := false;
|
| 985 |
FAttachmentID := 0;
|
| 986 |
FODSMajorVersion := 0;
|
| 987 |
FODSMinorVersion := 0;
|
| 988 |
FCodePage := CP_NONE;
|
| 989 |
FCharSetID := 0;
|
| 990 |
FRemoteProtocol := '';
|
| 991 |
FAuthMethod := '';
|
| 992 |
FSecDatabase := '';
|
| 993 |
FHasConnectionInfo := false;
|
| 994 |
end;
|
| 995 |
|
| 996 |
function TFBAttachment.GenerateCreateDatabaseSQL(DatabaseName: AnsiString; aDPB: IDPB): AnsiString;
|
| 997 |
var CreateParams: AnsiString;
|
| 998 |
DPBItem: IDPBItem;
|
| 999 |
begin
|
| 1000 |
CreateParams := '';
|
| 1001 |
|
| 1002 |
if aDPB <> nil then
|
| 1003 |
begin
|
| 1004 |
DPBItem := aDPB.Find(isc_dpb_user_name);
|
| 1005 |
if DPBItem <> nil then
|
| 1006 |
CreateParams := CreateParams + ' USER ''' + DPBItem.AsString + '''';
|
| 1007 |
|
| 1008 |
DPBItem := aDPB.Find(isc_dpb_password);
|
| 1009 |
if DPBItem <> nil then
|
| 1010 |
CreateParams := CreateParams + ' Password ''' + DPBItem.AsString + '''';
|
| 1011 |
|
| 1012 |
DPBItem := aDPB.Find(isc_dpb_page_size);
|
| 1013 |
if DPBItem <> nil then
|
| 1014 |
CreateParams := CreateParams + ' PAGE_SIZE ' + DPBItem.AsString;
|
| 1015 |
|
| 1016 |
DPBItem := aDPB.Find(isc_dpb_lc_ctype);
|
| 1017 |
if DPBItem <> nil then
|
| 1018 |
CreateParams := CreateParams + ' DEFAULT CHARACTER SET ' + DPBItem.AsString;
|
| 1019 |
|
| 1020 |
DPBItem := aDPB.Find(isc_dpb_sql_dialect);
|
| 1021 |
if DPBItem <> nil then
|
| 1022 |
FSQLDialect := DPBItem.AsInteger;
|
| 1023 |
end;
|
| 1024 |
|
| 1025 |
Result := 'CREATE DATABASE ''' + DatabaseName + ''' ' + CreateParams; {do not localize}
|
| 1026 |
end;
|
| 1027 |
|
| 1028 |
procedure TFBAttachment.EndAllTransactions;
|
| 1029 |
var i: integer;
|
| 1030 |
intf: TInterfacedObject;
|
| 1031 |
begin
|
| 1032 |
for i := 0 to InterfaceCount - 1 do
|
| 1033 |
begin
|
| 1034 |
intf := GetInterface(i);
|
| 1035 |
if (intf <> nil) and (intf is TFBTransaction) then
|
| 1036 |
TFBTransaction(intf).DoDefaultTransactionEnd(true);
|
| 1037 |
end;
|
| 1038 |
end;
|
| 1039 |
|
| 1040 |
{$IFDEF HASREQEX}
|
| 1041 |
procedure TFBAttachment.DPBFromCreateSQL(CreateSQL: AnsiString);
|
| 1042 |
var RegexObj: TRegExpr;
|
| 1043 |
begin
|
| 1044 |
FDPB := FFirebirdAPI.AllocateDPB;
|
| 1045 |
RegexObj := TRegExpr.Create;
|
| 1046 |
try
|
| 1047 |
{extact database file spec}
|
| 1048 |
RegexObj.ModifierG := false; {turn off greedy matches}
|
| 1049 |
RegexObj.ModifierI := true; {case insensitive match}
|
| 1050 |
RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +''.*'' +USER +''(.+)'' PASSWORD +''(.+)''';
|
| 1051 |
if RegexObj.Exec(CreateSQL) then
|
| 1052 |
begin
|
| 1053 |
DPB.Add(isc_dpb_user_name).AsString := system.copy(CreateSQL,RegexObj.MatchPos[2],RegexObj.MatchLen[2]);
|
| 1054 |
DPB.Add(isc_dpb_password).AsString := system.copy(CreateSQL,RegexObj.MatchPos[3],RegexObj.MatchLen[3]);
|
| 1055 |
end
|
| 1056 |
else
|
| 1057 |
begin
|
| 1058 |
RegexObj.Expression := '^ *CREATE +(DATABASE|SCHEMA) +(''.*'') +USER +''(.+)''';
|
| 1059 |
if RegexObj.Exec(CreateSQL) then
|
| 1060 |
DPB.Add(isc_dpb_user_name).AsString := system.copy(CreateSQL,RegexObj.MatchPos[2],RegexObj.MatchLen[2]);
|
| 1061 |
end;
|
| 1062 |
finally
|
| 1063 |
RegexObj.Free;
|
| 1064 |
end;
|
| 1065 |
if FCharSetID > 0 then
|
| 1066 |
DPB.Add(isc_dpb_lc_ctype).AsString := GetCharSetName(FCharSetID);
|
| 1067 |
DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(FSQLDialect);
|
| 1068 |
end;
|
| 1069 |
{$ELSE}
|
| 1070 |
procedure TFBAttachment.DPBFromCreateSQL(CreateSQL: AnsiString);
|
| 1071 |
begin
|
| 1072 |
FDPB := FFirebirdAPI.AllocateDPB;
|
| 1073 |
if FCharSetID > 0 then
|
| 1074 |
DPB.Add(isc_dpb_lc_ctype).AsString := GetCharSetName(FCharSetID);
|
| 1075 |
DPB.Add(isc_dpb_set_db_SQL_dialect).setAsByte(FSQLDialect);
|
| 1076 |
end;
|
| 1077 |
{$ENDIF}
|
| 1078 |
|
| 1079 |
procedure TFBAttachment.SetParameters(SQLParams: ISQLParams;
|
| 1080 |
params: array of const);
|
| 1081 |
var i: integer;
|
| 1082 |
begin
|
| 1083 |
if SQLParams.Count <> Length(params) then
|
| 1084 |
IBError(ibxeInvalidParamCount,[SQLParams.Count,Length(params)]);
|
| 1085 |
|
| 1086 |
for i := 0 to High(params) do
|
| 1087 |
begin
|
| 1088 |
case params[i].vtype of
|
| 1089 |
vtinteger :
|
| 1090 |
SQLParams[i].AsInteger := params[i].vinteger;
|
| 1091 |
vtInt64:
|
| 1092 |
SQLParams[i].AsInt64 := params[i].VInt64^;
|
| 1093 |
{$IF declared (vtQWord)}
|
| 1094 |
vtQWord:
|
| 1095 |
SQLParams[i].AsInt64 := params[i].VQWord^;
|
| 1096 |
{$IFEND}
|
| 1097 |
vtboolean :
|
| 1098 |
SQLParams[i].AsBoolean := params[i].vboolean;
|
| 1099 |
vtchar :
|
| 1100 |
SQLParams[i].AsString := params[i].vchar;
|
| 1101 |
vtextended :
|
| 1102 |
SQLParams[i].AsDouble := params[i].VExtended^;
|
| 1103 |
vtCurrency:
|
| 1104 |
SQLParams[i].AsDouble := params[i].VCurrency^;
|
| 1105 |
vtString :
|
| 1106 |
SQLParams[i].AsString := strpas(PChar(params[i].VString));
|
| 1107 |
vtPChar :
|
| 1108 |
SQLParams[i].AsString := strpas(params[i].VPChar);
|
| 1109 |
vtAnsiString :
|
| 1110 |
SQLParams[i].AsString := strpas(PAnsiChar(params[i].VAnsiString));
|
| 1111 |
vtVariant:
|
| 1112 |
SQLParams[i].AsVariant := params[i].VVariant^;
|
| 1113 |
vtWideChar:
|
| 1114 |
SQLParams[i].AsString := UTF8Encode(WideCharLenToString(@params[i].VWideChar,1));
|
| 1115 |
vtPWideChar:
|
| 1116 |
SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VPWideChar)));
|
| 1117 |
vtWideString:
|
| 1118 |
SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VWideString)));
|
| 1119 |
vtUnicodeString:
|
| 1120 |
SQLParams[i].AsString := UTF8Encode(strpas(PWideChar(params[i].VUnicodeString)));
|
| 1121 |
else
|
| 1122 |
IBError(ibxeInvalidVariantType,[nil]);
|
| 1123 |
end;
|
| 1124 |
end;
|
| 1125 |
end;
|
| 1126 |
|
| 1127 |
procedure TFBAttachment.SetSQLDialect(aValue: integer);
|
| 1128 |
begin
|
| 1129 |
FSQLDialect := aValue;
|
| 1130 |
end;
|
| 1131 |
|
| 1132 |
procedure TFBAttachment.UseServerICUChanged;
|
| 1133 |
begin
|
| 1134 |
// Do nothing by default
|
| 1135 |
end;
|
| 1136 |
|
| 1137 |
destructor TFBAttachment.Destroy;
|
| 1138 |
begin
|
| 1139 |
Disconnect(true);
|
| 1140 |
inherited Destroy;
|
| 1141 |
end;
|
| 1142 |
|
| 1143 |
procedure TFBAttachment.Disconnect(Force: boolean);
|
| 1144 |
begin
|
| 1145 |
inherited Disconnect(Force);
|
| 1146 |
ClearCachedInfo;
|
| 1147 |
end;
|
| 1148 |
|
| 1149 |
function TFBAttachment.getFirebirdAPI: IFirebirdAPI;
|
| 1150 |
begin
|
| 1151 |
Result := FFirebirdAPI;
|
| 1152 |
end;
|
| 1153 |
|
| 1154 |
function TFBAttachment.getDPB: IDPB;
|
| 1155 |
begin
|
| 1156 |
Result := FDPB;
|
| 1157 |
end;
|
| 1158 |
|
| 1159 |
function TFBAttachment.AllocateBPB: IBPB;
|
| 1160 |
begin
|
| 1161 |
Result := TBPB.Create(FFirebirdAPI as TFBClientAPI);
|
| 1162 |
end;
|
| 1163 |
|
| 1164 |
function TFBAttachment.AllocateDIRB: IDIRB;
|
| 1165 |
begin
|
| 1166 |
Result := TDIRB.Create(FFirebirdAPI as TFBClientAPI);
|
| 1167 |
end;
|
| 1168 |
|
| 1169 |
procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString;
|
| 1170 |
aSQLDialect: integer);
|
| 1171 |
var tr: ITransaction;
|
| 1172 |
begin
|
| 1173 |
tr := StartTransaction(TPB,taCommit);
|
| 1174 |
try
|
| 1175 |
ExecImmediate(tr,sql,aSQLDialect);
|
| 1176 |
tr.Commit;
|
| 1177 |
except
|
| 1178 |
tr.Rollback(true);
|
| 1179 |
raise;
|
| 1180 |
end;
|
| 1181 |
end;
|
| 1182 |
|
| 1183 |
procedure TFBAttachment.ExecImmediate(transaction: ITransaction; sql: AnsiString);
|
| 1184 |
begin
|
| 1185 |
ExecImmediate(transaction,sql,FSQLDialect);
|
| 1186 |
end;
|
| 1187 |
|
| 1188 |
procedure TFBAttachment.ExecImmediate(TPB: array of byte; sql: AnsiString);
|
| 1189 |
begin
|
| 1190 |
ExecImmediate(TPB,sql,FSQLDialect);
|
| 1191 |
end;
|
| 1192 |
|
| 1193 |
function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString;
|
| 1194 |
SQLDialect: integer; params: array of const): IResults;
|
| 1195 |
var tr: ITransaction;
|
| 1196 |
begin
|
| 1197 |
tr := StartTransaction(TPB,taCommit);
|
| 1198 |
try
|
| 1199 |
Result := ExecuteSQL(tr,sql,SQLDialect,params);
|
| 1200 |
tr.CommitRetaining;
|
| 1201 |
except
|
| 1202 |
tr.Rollback(true);
|
| 1203 |
raise;
|
| 1204 |
end;
|
| 1205 |
end;
|
| 1206 |
|
| 1207 |
function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString;
|
| 1208 |
SQLDialect: integer; params: array of const): IResults;
|
| 1209 |
begin
|
| 1210 |
with Prepare(transaction,sql,SQLDialect) do
|
| 1211 |
begin
|
| 1212 |
SetParameters(SQLParams,params);
|
| 1213 |
Result := Execute;
|
| 1214 |
end;
|
| 1215 |
end;
|
| 1216 |
|
| 1217 |
function TFBAttachment.ExecuteSQL(TPB: array of byte; sql: AnsiString;
|
| 1218 |
params: array of const): IResults;
|
| 1219 |
begin
|
| 1220 |
Result := ExecuteSQL(TPB,sql,FSQLDialect,params);
|
| 1221 |
end;
|
| 1222 |
|
| 1223 |
function TFBAttachment.ExecuteSQL(transaction: ITransaction; sql: AnsiString;
|
| 1224 |
params: array of const): IResults;
|
| 1225 |
begin
|
| 1226 |
Result := ExecuteSQL(transaction,sql,FSQLDialect,params);
|
| 1227 |
end;
|
| 1228 |
|
| 1229 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
|
| 1230 |
aSQLDialect: integer; Scrollable: boolean): IResultSet;
|
| 1231 |
begin
|
| 1232 |
Result := OpenCursor(transaction,sql,aSQLDialect,Scrollable,[]);
|
| 1233 |
end;
|
| 1234 |
|
| 1235 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
|
| 1236 |
aSQLDialect: integer; params: array of const): IResultSet;
|
| 1237 |
|
| 1238 |
begin
|
| 1239 |
Result := OpenCursor(transaction,sql,FSQLDialect,false,params);
|
| 1240 |
end;
|
| 1241 |
|
| 1242 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
|
| 1243 |
Scrollable: boolean): IResultSet;
|
| 1244 |
begin
|
| 1245 |
Result := OpenCursor(transaction,sql,FSQLDialect,Scrollable,[]);
|
| 1246 |
end;
|
| 1247 |
|
| 1248 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
|
| 1249 |
params: array of const): IResultSet;
|
| 1250 |
begin
|
| 1251 |
Result := OpenCursor(transaction,sql,FSQLDialect,false,params);
|
| 1252 |
end;
|
| 1253 |
|
| 1254 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
|
| 1255 |
Scrollable: boolean; params: array of const): IResultSet;
|
| 1256 |
begin
|
| 1257 |
Result := OpenCursor(transaction,sql,FSQLDialect,Scrollable,params);
|
| 1258 |
end;
|
| 1259 |
|
| 1260 |
function TFBAttachment.OpenCursor(transaction: ITransaction; sql: AnsiString;
|
| 1261 |
aSQLDialect: integer; Scrollable: boolean;
|
| 1262 |
params: array of const): IResultSet;
|
| 1263 |
var Statement: IStatement;
|
| 1264 |
begin
|
| 1265 |
CheckHandle;
|
| 1266 |
Statement := Prepare(transaction,sql,aSQLDialect);
|
| 1267 |
SetParameters(Statement.SQLParams,params);
|
| 1268 |
Result := Statement.OpenCursor(Scrollable);
|
| 1269 |
end;
|
| 1270 |
|
| 1271 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
|
| 1272 |
sql: AnsiString; aSQLDialect: integer; Scrollable: boolean): IResultSet;
|
| 1273 |
begin
|
| 1274 |
Result := OpenCursor(transaction,sql,aSQLDialect,Scrollable,[]);
|
| 1275 |
Result.FetchNext;
|
| 1276 |
end;
|
| 1277 |
|
| 1278 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
|
| 1279 |
sql: AnsiString; aSQLDialect: integer; params: array of const): IResultSet;
|
| 1280 |
begin
|
| 1281 |
Result := OpenCursor(transaction,sql,aSQLDialect,params);
|
| 1282 |
Result.FetchNext;
|
| 1283 |
end;
|
| 1284 |
|
| 1285 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
|
| 1286 |
sql: AnsiString; aSQLDialect: integer; Scrollable: boolean;
|
| 1287 |
params: array of const): IResultSet;
|
| 1288 |
begin
|
| 1289 |
Result := OpenCursor(transaction,sql,aSQLDialect,Scrollable,params);
|
| 1290 |
Result.FetchNext;
|
| 1291 |
end;
|
| 1292 |
|
| 1293 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
|
| 1294 |
sql: AnsiString; Scrollable: boolean): IResultSet;
|
| 1295 |
begin
|
| 1296 |
Result := OpenCursorAtStart(transaction,sql,FSQLDialect,Scrollable,[]);
|
| 1297 |
end;
|
| 1298 |
|
| 1299 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
|
| 1300 |
sql: AnsiString; params: array of const): IResultSet;
|
| 1301 |
begin
|
| 1302 |
Result := OpenCursorAtStart(transaction,sql,FSQLDialect,params);
|
| 1303 |
end;
|
| 1304 |
|
| 1305 |
function TFBAttachment.OpenCursorAtStart(transaction: ITransaction;
|
| 1306 |
sql: AnsiString; Scrollable: boolean; params: array of const): IResultSet;
|
| 1307 |
begin
|
| 1308 |
Result := OpenCursorAtStart(transaction,sql,FSQLDialect,Scrollable,params);
|
| 1309 |
end;
|
| 1310 |
|
| 1311 |
function TFBAttachment.OpenCursorAtStart(sql: AnsiString; Scrollable: boolean
|
| 1312 |
): IResultSet;
|
| 1313 |
begin
|
| 1314 |
Result := OpenCursorAtStart(sql,Scrollable,[]);
|
| 1315 |
end;
|
| 1316 |
|
| 1317 |
function TFBAttachment.OpenCursorAtStart(sql: AnsiString; Scrollable: boolean;
|
| 1318 |
params: array of const): IResultSet;
|
| 1319 |
var tr: ITransaction;
|
| 1320 |
begin
|
| 1321 |
tr := StartTransaction([isc_tpb_read,isc_tpb_wait,isc_tpb_concurrency],taCommit);
|
| 1322 |
try
|
| 1323 |
Result := OpenCursorAtStart(tr,sql,FSQLDialect,Scrollable,params);
|
| 1324 |
tr.CommitRetaining;
|
| 1325 |
except
|
| 1326 |
tr.Rollback(true);
|
| 1327 |
raise;
|
| 1328 |
end;
|
| 1329 |
end;
|
| 1330 |
|
| 1331 |
function TFBAttachment.OpenCursorAtStart(sql: AnsiString;
|
| 1332 |
params: array of const): IResultSet;
|
| 1333 |
begin
|
| 1334 |
Result := OpenCursorAtStart(sql,false,params);
|
| 1335 |
end;
|
| 1336 |
|
| 1337 |
function TFBAttachment.Prepare(transaction: ITransaction; sql: AnsiString;
|
| 1338 |
CursorName: AnsiString): IStatement;
|
| 1339 |
begin
|
| 1340 |
Result := Prepare(transaction,sql,FSQLDialect,CursorName);
|
| 1341 |
end;
|
| 1342 |
|
| 1343 |
function TFBAttachment.PrepareWithNamedParameters(transaction: ITransaction;
|
| 1344 |
sql: AnsiString; GenerateParamNames: boolean; CaseSensitiveParams: boolean;
|
| 1345 |
CursorName: AnsiString): IStatement;
|
| 1346 |
begin
|
| 1347 |
Result := PrepareWithNamedParameters(transaction,sql,FSQLDialect,GenerateParamNames,CaseSensitiveParams,CursorName);
|
| 1348 |
end;
|
| 1349 |
|
| 1350 |
function TFBAttachment.GetEventHandler(Event: AnsiString): IEvents;
|
| 1351 |
var S: TStringList;
|
| 1352 |
begin
|
| 1353 |
S := TStringList.Create;
|
| 1354 |
try
|
| 1355 |
S.Add(Event);
|
| 1356 |
Result := GetEventHandler(S);
|
| 1357 |
finally
|
| 1358 |
S.Free;
|
| 1359 |
end;
|
| 1360 |
end;
|
| 1361 |
|
| 1362 |
function TFBAttachment.GetSQLDialect: integer;
|
| 1363 |
begin
|
| 1364 |
NeedDBInfo;
|
| 1365 |
Result := FSQLDialect;
|
| 1366 |
end;
|
| 1367 |
|
| 1368 |
function TFBAttachment.GetAttachmentID: integer;
|
| 1369 |
begin
|
| 1370 |
NeedDBInfo;
|
| 1371 |
Result := FAttachmentID;
|
| 1372 |
end;
|
| 1373 |
|
| 1374 |
function TFBAttachment.CreateBlob(transaction: ITransaction; RelationName,
|
| 1375 |
ColumnName: AnsiString; BPB: IBPB): IBlob;
|
| 1376 |
begin
|
| 1377 |
Result := CreateBlob(transaction,GetBlobMetaData(Transaction,RelationName,ColumnName),BPB);
|
| 1378 |
end;
|
| 1379 |
|
| 1380 |
function TFBAttachment.OpenBlob(transaction: ITransaction; RelationName,
|
| 1381 |
ColumnName: AnsiString; BlobID: TISC_QUAD; BPB: IBPB): IBlob;
|
| 1382 |
begin
|
| 1383 |
Result := OpenBlob(Transaction,
|
| 1384 |
GetBlobMetaData(Transaction,RelationName,ColumnName),
|
| 1385 |
BlobID,BPB);
|
| 1386 |
end;
|
| 1387 |
|
| 1388 |
function TFBAttachment.OpenBlob(transaction: ITransaction; Field: ISQLData;
|
| 1389 |
BPB: IBPB): IBlob;
|
| 1390 |
begin
|
| 1391 |
Result := OpenBlob(Transaction,Field.GetBlobMetadata, Field.AsQuad,BPB);
|
| 1392 |
end;
|
| 1393 |
|
| 1394 |
function TFBAttachment.CreateArray(transaction: ITransaction; RelationName,
|
| 1395 |
ColumnName: AnsiString): IArray;
|
| 1396 |
begin
|
| 1397 |
Result := CreateArray(transaction,GetArrayMetaData(transaction,RelationName,ColumnName));
|
| 1398 |
end;
|
| 1399 |
|
| 1400 |
function TFBAttachment.OpenArray(transaction: ITransaction; RelationName,
|
| 1401 |
ColumnName: AnsiString; ArrayID: TISC_QUAD): IArray;
|
| 1402 |
begin
|
| 1403 |
Result := OpenArray(transaction,
|
| 1404 |
GetArrayMetaData(transaction,RelationName,ColumnName),ArrayID);
|
| 1405 |
end;
|
| 1406 |
|
| 1407 |
function TFBAttachment.GetDBInformation(Requests: array of byte
|
| 1408 |
): IDBInformation;
|
| 1409 |
var ReqBuffer: PByte;
|
| 1410 |
i: integer;
|
| 1411 |
begin
|
| 1412 |
CheckHandle;
|
| 1413 |
if Length(Requests) = 1 then
|
| 1414 |
Result := GetDBInformation(Requests[0])
|
| 1415 |
else
|
| 1416 |
begin
|
| 1417 |
GetMem(ReqBuffer,Length(Requests));
|
| 1418 |
try
|
| 1419 |
for i := 0 to Length(Requests) - 1 do
|
| 1420 |
ReqBuffer[i] := Requests[i];
|
| 1421 |
|
| 1422 |
Result := GetDBInfo(ReqBuffer,Length(Requests));
|
| 1423 |
|
| 1424 |
finally
|
| 1425 |
FreeMem(ReqBuffer);
|
| 1426 |
end;
|
| 1427 |
end;
|
| 1428 |
end;
|
| 1429 |
|
| 1430 |
function TFBAttachment.GetDBInformation(Request: byte): IDBInformation;
|
| 1431 |
begin
|
| 1432 |
CheckHandle;
|
| 1433 |
Result := GetDBInfo(@Request,1);
|
| 1434 |
end;
|
| 1435 |
|
| 1436 |
function TFBAttachment.GetDBInformation(Requests: IDIRB): IDBInformation;
|
| 1437 |
begin
|
| 1438 |
CheckHandle;
|
| 1439 |
with Requests as TDIRB do
|
| 1440 |
Result := GetDBInfo(getBuffer,getDataLength);
|
| 1441 |
end;
|
| 1442 |
|
| 1443 |
function TFBAttachment.GetConnectString: AnsiString;
|
| 1444 |
begin
|
| 1445 |
Result := FDatabaseName;
|
| 1446 |
end;
|
| 1447 |
|
| 1448 |
function TFBAttachment.GetRemoteProtocol: AnsiString;
|
| 1449 |
begin
|
| 1450 |
NeedConnectionInfo;
|
| 1451 |
Result := FRemoteProtocol;
|
| 1452 |
end;
|
| 1453 |
|
| 1454 |
function TFBAttachment.GetAuthenticationMethod: AnsiString;
|
| 1455 |
begin
|
| 1456 |
NeedConnectionInfo;
|
| 1457 |
Result := FAuthMethod;
|
| 1458 |
end;
|
| 1459 |
|
| 1460 |
function TFBAttachment.GetSecurityDatabase: AnsiString;
|
| 1461 |
begin
|
| 1462 |
NeedConnectionInfo;
|
| 1463 |
Result := FSecDatabase;
|
| 1464 |
end;
|
| 1465 |
|
| 1466 |
function TFBAttachment.GetODSMajorVersion: integer;
|
| 1467 |
begin
|
| 1468 |
NeedDBInfo;
|
| 1469 |
Result := FODSMajorVersion;
|
| 1470 |
end;
|
| 1471 |
|
| 1472 |
function TFBAttachment.GetODSMinorVersion: integer;
|
| 1473 |
begin
|
| 1474 |
NeedDBInfo;
|
| 1475 |
Result := FODSMinorVersion;
|
| 1476 |
end;
|
| 1477 |
|
| 1478 |
function TFBAttachment.GetCharSetID: integer;
|
| 1479 |
begin
|
| 1480 |
NeedConnectionInfo;
|
| 1481 |
Result := FCharSetID;
|
| 1482 |
end;
|
| 1483 |
|
| 1484 |
function TFBAttachment.HasDecFloatSupport: boolean;
|
| 1485 |
begin
|
| 1486 |
Result := false;
|
| 1487 |
end;
|
| 1488 |
|
| 1489 |
function TFBAttachment.GetInlineBlobLimit: integer;
|
| 1490 |
begin
|
| 1491 |
Result := FInlineBlobLimit;
|
| 1492 |
end;
|
| 1493 |
|
| 1494 |
procedure TFBAttachment.SetInlineBlobLimit(limit: integer);
|
| 1495 |
begin
|
| 1496 |
if limit > 32*1024 then
|
| 1497 |
FInlineBlobLimit := 32*1024
|
| 1498 |
else
|
| 1499 |
FInlineBlobLimit := limit;
|
| 1500 |
end;
|
| 1501 |
|
| 1502 |
function TFBAttachment.HasBatchMode: boolean;
|
| 1503 |
begin
|
| 1504 |
Result := false;
|
| 1505 |
end;
|
| 1506 |
|
| 1507 |
function TFBAttachment.HasTable(aTableName: AnsiString): boolean;
|
| 1508 |
begin
|
| 1509 |
Result := OpenCursorAtStart(
|
| 1510 |
'Select count(*) From RDB$RELATIONS Where RDB$RELATION_NAME = ?',
|
| 1511 |
[aTableName])[0].AsInteger > 0;
|
| 1512 |
end;
|
| 1513 |
|
| 1514 |
function TFBAttachment.HasFunction(aFunctionName: AnsiString): boolean;
|
| 1515 |
begin
|
| 1516 |
Result := OpenCursorAtStart(
|
| 1517 |
'Select count(*) From RDB$FUNCTIONS Where RDB$FUNCTION_NAME = ?',
|
| 1518 |
[aFunctionName])[0].AsInteger > 0;
|
| 1519 |
end;
|
| 1520 |
|
| 1521 |
function TFBAttachment.HasProcedure(aProcName: AnsiString): boolean;
|
| 1522 |
begin
|
| 1523 |
Result := OpenCursorAtStart(
|
| 1524 |
'Select count(*) From RDB$PROCEDURES Where RDB$PROCEDURE_NAME = ?',
|
| 1525 |
[aProcName])[0].AsInteger > 0;
|
| 1526 |
end;
|
| 1527 |
|
| 1528 |
function TFBAttachment.HasDefaultCharSet: boolean;
|
| 1529 |
begin
|
| 1530 |
NeedConnectionInfo;
|
| 1531 |
Result := FHasDefaultCharSet
|
| 1532 |
end;
|
| 1533 |
|
| 1534 |
function TFBAttachment.GetDefaultCharSetID: integer;
|
| 1535 |
begin
|
| 1536 |
NeedConnectionInfo;
|
| 1537 |
Result := FCharsetID;
|
| 1538 |
end;
|
| 1539 |
|
| 1540 |
function TFBAttachment.GetCharsetName(CharSetID: integer): AnsiString;
|
| 1541 |
var i: integer;
|
| 1542 |
begin
|
| 1543 |
Result := '';
|
| 1544 |
if (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap)) and
|
| 1545 |
(CharSetMap[CharSetID].CharSetID = CharSetID) then
|
| 1546 |
begin
|
| 1547 |
Result := CharSetMap[CharSetID].CharSetName;
|
| 1548 |
Exit;
|
| 1549 |
end;
|
| 1550 |
|
| 1551 |
for i := 0 to Length(FUserCharSetMap) - 1 do
|
| 1552 |
if FUserCharSetMap[i].CharSetID = CharSetID then
|
| 1553 |
begin
|
| 1554 |
Result := FUserCharSetMap[i].CharSetName;
|
| 1555 |
Exit;
|
| 1556 |
end;
|
| 1557 |
end;
|
| 1558 |
|
| 1559 |
function TFBAttachment.CharSetID2CodePage(CharSetID: integer;
|
| 1560 |
var CodePage: TSystemCodePage): boolean;
|
| 1561 |
var i: integer;
|
| 1562 |
begin
|
| 1563 |
Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap))
|
| 1564 |
and (CharSetMap[CharSetID].CharSetID = CharSetID);
|
| 1565 |
if Result then
|
| 1566 |
begin
|
| 1567 |
CodePage := CharSetMap[CharSetID].CodePage;
|
| 1568 |
Result := true;
|
| 1569 |
Exit;
|
| 1570 |
end;
|
| 1571 |
|
| 1572 |
for i := 0 to Length(FUserCharSetMap) - 1 do
|
| 1573 |
if FUserCharSetMap[i].CharSetID = CharSetID then
|
| 1574 |
begin
|
| 1575 |
CodePage := FUserCharSetMap[i].CodePage;
|
| 1576 |
Result := true;
|
| 1577 |
Exit;
|
| 1578 |
end;
|
| 1579 |
end;
|
| 1580 |
|
| 1581 |
function TFBAttachment.CodePage2CharSetID(CodePage: TSystemCodePage;
|
| 1582 |
var CharSetID: integer): boolean;
|
| 1583 |
var i: integer;
|
| 1584 |
begin
|
| 1585 |
Result := false;
|
| 1586 |
for i := Low(CharSetMap) to High(CharSetMap) do
|
| 1587 |
if (CharSetMap[i].AllowReverseLookup) and (CharSetMap[i].CodePage = CodePage) then
|
| 1588 |
begin
|
| 1589 |
CharSetID := CharSetMap[i].CharSetID;
|
| 1590 |
Result := true;
|
| 1591 |
Exit;
|
| 1592 |
end;
|
| 1593 |
|
| 1594 |
for i := 0 to Length(FUserCharSetMap) - 1 do
|
| 1595 |
if (FUserCharSetMap[i].AllowReverseLookup) and (FUserCharSetMap[i].CodePage = CodePage) then
|
| 1596 |
begin
|
| 1597 |
CharSetID := FUserCharSetMap[i].CharSetID;
|
| 1598 |
Result := true;
|
| 1599 |
Exit;
|
| 1600 |
end;
|
| 1601 |
end;
|
| 1602 |
|
| 1603 |
function TFBAttachment.CharSetName2CharSetID(CharSetName: AnsiString;
|
| 1604 |
var CharSetID: integer): boolean;
|
| 1605 |
var i: integer;
|
| 1606 |
begin
|
| 1607 |
Result := false;
|
| 1608 |
for i := Low(CharSetMap) to High(CharSetMap) do
|
| 1609 |
if AnsiCompareText(CharSetMap[i].CharSetName, CharSetName) = 0 then
|
| 1610 |
begin
|
| 1611 |
CharSetID := CharSetMap[i].CharSetID;
|
| 1612 |
Result := true;
|
| 1613 |
Exit;
|
| 1614 |
end;
|
| 1615 |
|
| 1616 |
for i := 0 to Length(FUserCharSetMap) - 1 do
|
| 1617 |
if AnsiCompareText(FUserCharSetMap[i].CharSetName, CharSetName) = 0 then
|
| 1618 |
begin
|
| 1619 |
CharSetID := FUserCharSetMap[i].CharSetID;
|
| 1620 |
Result := true;
|
| 1621 |
Exit;
|
| 1622 |
end;
|
| 1623 |
end;
|
| 1624 |
|
| 1625 |
function TFBAttachment.CharSetWidth(CharSetID: integer; var Width: integer
|
| 1626 |
): boolean;
|
| 1627 |
var i: integer;
|
| 1628 |
begin
|
| 1629 |
Result := (CharSetID >= Low(CharSetMap)) and (CharSetID <= High(CharSetMap))
|
| 1630 |
and (CharSetMap[CharSetID].CharSetID = CharSetID);
|
| 1631 |
if Result then
|
| 1632 |
begin
|
| 1633 |
Width := CharSetMap[CharSetID].CharSetWidth;
|
| 1634 |
Result := true;
|
| 1635 |
Exit;
|
| 1636 |
end;
|
| 1637 |
|
| 1638 |
for i := 0 to Length(FUserCharSetMap) - 1 do
|
| 1639 |
if FUserCharSetMap[i].CharSetID = CharSetID then
|
| 1640 |
begin
|
| 1641 |
Width := FUserCharSetMap[i].CharSetWidth;
|
| 1642 |
Result := true;
|
| 1643 |
Exit;
|
| 1644 |
end;
|
| 1645 |
end;
|
| 1646 |
|
| 1647 |
const
|
| 1648 |
sqlLookupCharSet = 'Select RDB$CHARACTER_SET_ID, RDB$BYTES_PER_CHARACTER From RDB$CHARACTER_SETS '+
|
| 1649 |
'Where RDB$SYSTEM_FLAG = 0 and RDB$CHARACTER_SET_NAME = UPPER(?)';
|
| 1650 |
|
| 1651 |
procedure TFBAttachment.RegisterCharSet(CharSetName: AnsiString;
|
| 1652 |
CodePage: TSystemCodePage; AllowReverseLookup: boolean; out CharSetID: integer
|
| 1653 |
);
|
| 1654 |
var CharSets: IResultSet;
|
| 1655 |
idx: integer;
|
| 1656 |
begin
|
| 1657 |
if CharSetName2CharSetID(CharSetName,CharSetID) then
|
| 1658 |
IBError(ibxeCharacterSetExists,[CharSetName]);
|
| 1659 |
|
| 1660 |
CharSets := OpenCursorAtStart(sqlLookupCharSet,[CharSetName]);
|
| 1661 |
if CharSets.IsEof then
|
| 1662 |
IBError(ibxeUnknownUserCharSet,[CharSetName]);
|
| 1663 |
|
| 1664 |
idx := Length(FUserCharSetMap);
|
| 1665 |
SetLength(FUserCharSetMap,idx+1);
|
| 1666 |
FUserCharSetMap[idx].AllowReverseLookup := AllowReverseLookup;
|
| 1667 |
FUserCharSetMap[idx].CharSetID := CharSets[0].AsInteger;
|
| 1668 |
FUserCharSetMap[idx].CharSetName := AnsiUpperCase(CharSetName);
|
| 1669 |
FUserCharSetMap[idx].CharSetWidth := CharSets[1].AsInteger;
|
| 1670 |
FUserCharSetMap[idx].CodePage := CodePage;
|
| 1671 |
CharSetID := CharSets[0].AsInteger;
|
| 1672 |
end;
|
| 1673 |
|
| 1674 |
function TFBAttachment.GetTimeZoneServices: ITimeZoneServices;
|
| 1675 |
begin
|
| 1676 |
IBError(ibxeNotSupported,[]);
|
| 1677 |
end;
|
| 1678 |
|
| 1679 |
function TFBAttachment.HasTimeZoneSupport: boolean;
|
| 1680 |
begin
|
| 1681 |
Result := false;
|
| 1682 |
end;
|
| 1683 |
|
| 1684 |
{ TDPBItem }
|
| 1685 |
|
| 1686 |
function TDPBItem.getParamTypeName: AnsiString;
|
| 1687 |
begin
|
| 1688 |
Result := DPBPrefix + DPBConstantNames[getParamType];
|
| 1689 |
end;
|
| 1690 |
|
| 1691 |
{ TDPB }
|
| 1692 |
|
| 1693 |
constructor TDPB.Create(api: TFBClientAPI);
|
| 1694 |
begin
|
| 1695 |
inherited Create(api);
|
| 1696 |
FDataLength := 1;
|
| 1697 |
FBuffer^ := isc_dpb_version1;
|
| 1698 |
end;
|
| 1699 |
|
| 1700 |
function TDPB.GetParamTypeName(ParamType: byte): Ansistring;
|
| 1701 |
begin
|
| 1702 |
if ParamType <= isc_dpb_last_dpb_constant then
|
| 1703 |
Result := DPBConstantNames[ParamType]
|
| 1704 |
else
|
| 1705 |
Result := '';
|
| 1706 |
end;
|
| 1707 |
|
| 1708 |
{$IFNDEF FPC}
|
| 1709 |
function TDPB.GetDPBParamTypeName(ParamType: byte): Ansistring;
|
| 1710 |
begin
|
| 1711 |
Result := GetParamTypeName(ParamType);
|
| 1712 |
end;
|
| 1713 |
{$ENDIF}
|
| 1714 |
|
| 1715 |
function TDPB.LookupItemType(ParamTypeName: AnsiString): byte;
|
| 1716 |
var i: byte;
|
| 1717 |
begin
|
| 1718 |
Result := 0;
|
| 1719 |
ParamTypeName := LowerCase(ParamTypeName);
|
| 1720 |
if (Pos(DPBPrefix, ParamTypeName) = 1) then
|
| 1721 |
Delete(ParamTypeName, 1, Length(DPBPrefix));
|
| 1722 |
|
| 1723 |
for i := 1 to isc_dpb_last_dpb_constant do
|
| 1724 |
if (ParamTypeName = DPBConstantNames[i]) then
|
| 1725 |
begin
|
| 1726 |
Result := i;
|
| 1727 |
break;
|
| 1728 |
end;
|
| 1729 |
end;
|
| 1730 |
|
| 1731 |
end.
|
| 1732 |
|
