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// Upgraded to Delphi 2009: Sebastian Zierer
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(* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is TurboPower SysTools
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*
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* The Initial Developer of the Original Code is
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* TurboPower Software
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*
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* Portions created by the Initial Developer are Copyright (C) 1996-2002
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* ***** END LICENSE BLOCK ***** *)
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{*********************************************************}
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{* SysTools: StMime.pas 4.04 *}
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{*********************************************************}
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{* SysTools: Internet Conversion unit for SysTools *}
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{*********************************************************}
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{$I StDefine.inc}
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{
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Note: Some Mime routines rely on overflows for their results,
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so these need to be off:
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}
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{$R-}
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{$Q-}
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unit StMime;
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interface
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uses
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Windows,
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SysUtils,
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Classes,
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StConst,
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StBase,
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StStrZ,
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StStrL,
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StOStr;
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const
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AttachmentFileMode = (fmOpenRead or fmShareDenyWrite);
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CRLFStr : array[0..1] of AnsiChar = #13#10;
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DefStContentDisposition : string[11] = 'attachment';
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DefStContentType : string[27] = 'application/octet-stream';
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DefStMimeEncoding : string[7] = 'base64';
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ExtractFileMode = (fmOpenReadWrite or fmShareExclusive);
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MaxMimeLine = 78;
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type
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TStConvertState = (csStarted, csProgressing, csFinished);
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TStProgressEvent =
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procedure(Sender : TObject; Status : TStConvertState; PercentDone : Byte) of object;
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TStSaveAsEvent = procedure(Sender : TObject; var FileName : string) of object;
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{.Z+}
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TStMimeConverter = class;
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{ Base conversion stream }
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TStConvertStream = class
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protected {private}
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FCurrentFile : string;
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FOwner : TStMimeConverter;
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FOnProgress : TStProgressEvent;
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public
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constructor Create(Owner : TStMimeConverter); virtual;
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procedure DecodeToStream(InStream, OutStream : TStream); virtual; abstract;
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procedure EncodeToStream(InStream, OutStream : TStream); virtual; abstract;
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procedure Progress(Status : TStConvertState; PercentDone : Byte); virtual;
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property CurrentFile : string
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read FCurrentFile write FCurrentFile;
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property OnProgress : TStProgressEvent
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read FOnProgress write FOnProgress;
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end;
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{ Conversion stream for raw copying }
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TStRawStream = class(TStConvertStream)
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public
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constructor Create(Owner : TStMimeConverter); override;
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procedure DecodeToStream(InStream, OutStream : TStream); override;
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procedure EncodeToStream(InStream, OutStream : TStream); override;
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end;
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{ Conversion stream for Quoted-Printable }
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TStQuotedStream = class(TStConvertStream)
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public
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constructor Create(Owner : TStMimeConverter); override;
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procedure DecodeToStream(InStream, OutStream : TStream); override;
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procedure EncodeToStream(InStream, OutStream : TStream); override;
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end;
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{ Conversion stream for UUEncoding }
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TStUUStream = class(TStConvertStream)
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public
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constructor Create(Owner : TStMimeConverter); override;
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procedure DecodeToStream(InStream, OutStream : TStream); override;
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procedure EncodeToStream(InStream, OutStream : TStream); override;
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end;
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{ Conversion stream for Base64 }
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TStBase64Stream = class(TStConvertStream)
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public
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constructor Create(Owner : TStMimeConverter); override;
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procedure DecodeToStream(InStream, OutStream : TStream); override;
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procedure EncodeToStream(InStream, OutStream : TStream); override;
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end;
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{.Z-}
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TStConverterClass = class of TStConvertStream;
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TStAttachment = class
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protected {private}
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FContentDescription : string;
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FContentDisposition : string;
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FContentType : string;
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FEncoding : string;
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FFileName : string;
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FOldStyle : Boolean;
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FSize : LongInt;
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FStreamOffset : LongInt;
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public
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{ Description of this attachment }
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property atContentDescription : string
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read FContentDescription write FContentDescription;
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{ Disposition of this attachment }
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property atContentDisposition : string
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read FContentDisposition write FContentDisposition;
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{ Content type of this attachment }
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property atContentType : string
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read FContentType write FContentType;
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{ Encoding used for this attachment }
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property atEncoding : string
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read FEncoding write FEncoding;
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{ Filename for this attachment }
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property atFilename : string
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read FFileName write FFileName;
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{ Old style (non-mime) attachment }
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property atOldStyle : Boolean
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read FOldStyle write FOldStyle;
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{ Size of attachment (in the unencoded state) }
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property atSize : LongInt
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read FSize write FSize;
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{ Offset of attachment in message }
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property atStreamOffset : LongInt
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read FStreamOffset write FStreamOffset;
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end;
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TStMimeConverter = class
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protected {private}
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{.Z+}
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FAttachments : TStringList;
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FBoundary : string;
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FBoundaryUsed : Boolean;
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FContentDescription : string;
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FContentDisposition : string;
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FContentType : string;
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FConverter : TStConvertStream;
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FDirectory : string;
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FEncoding : string;
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FEndBoundaryOffset : LongInt;
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FMimeHeaders : Boolean;
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FStream : TStream;
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FInternalStream : TMemoryStream;
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FOnProgress : TStProgressEvent;
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FOnSaveAs : TStSaveAsEvent;
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procedure AddMimeFooters;
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procedure AddMimeHeaders(const AFileName : string);
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procedure DeleteAttachments;
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procedure ForceType(ConverterType : TStConverterClass);
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function GetBoundary : string;
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function GetStream : TStream;
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procedure InitConverter;
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procedure SetBoundary(Value : string);
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procedure SetConverter(Value : TStConvertStream);
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procedure SetEncoding(Value : string);
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procedure SetStream(Value : TStream);
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{.Z-}
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protected
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procedure FindOldAttachment;
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function GenerateBoundary : string; dynamic;
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procedure PositionForExtract(Att : TStAttachment); dynamic;
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procedure Progress(Sender : TObject; Status : TStConvertState;
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PercentDone : Byte); dynamic;
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procedure SaveAs(var FileName : string);
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procedure ScanAttachments;
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public
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constructor Create;
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constructor CreateInit(AStream : TStream); virtual;
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destructor Destroy; override;
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procedure AddFileAttachment(const AFileName : string);
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procedure AddStreamAttachment(AStream : TStream; const AFileName : string); dynamic;
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procedure ExtractAttachment(const Attachment : string); dynamic;
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procedure ExtractAttachmentIndex(Index : Integer); dynamic;
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procedure ExtractToStream(Index : Integer; AStream : TStream); dynamic;
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procedure ExtractAttachments;
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procedure FillConverterList(List : TStrings);
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function GetTag(const Description : string): string;
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class procedure RegisterConverter(const ATag, ADesc : string;
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AClass : TStConverterClass);
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class procedure UnRegisterConverterClass(AClass : TStConverterClass);
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{ List of attachments in current stream }
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property Attachments : TStringList
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read FAttachments;
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{ Boundary being used for attachments }
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property Boundary : string
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read GetBoundary write SetBoundary;
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{ Default encoding to use for attachments }
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property Encoding : string
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read FEncoding write SetEncoding;
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{ Default Content Description to use for attachments }
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property ContentDescription : string
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read FContentDescription write FContentDescription;
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{ Default Content Disposition to use for attachments }
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property ContentDisposition : string
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read FContentDisposition write FContentDisposition;
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{ Default Content Type to use for attachments }
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property ContentType : string
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read FContentType write FContentType;
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{ Instance of converter to be used with current encoding method }
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property Converter : TStConvertStream
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read FConverter write SetConverter;
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{ Default directory used for ExtractAttachments }
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property Directory : string
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read FDirectory write FDirectory;
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{ Determines whether Mime boundaries/headers are added to attachments }
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property MimeHeaders : Boolean
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read FMimeHeaders write FMimeHeaders default True;
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{ Access to internal stream }
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property Stream : TStream
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read GetStream write SetStream;
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{ Progress event -- optional for converters to support this }
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property OnProgress : TStProgressEvent
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read FOnProgress write FOnProgress;
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{ SaveAs event -- fired when extracting an attachment }
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property OnSaveAs : TStSaveAsEvent
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read FOnSaveAs write FOnSaveAs;
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end;
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implementation
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const
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StUUTable : array[0..63] of AnsiChar = (#96, #33, #34, #35, #36, #37,
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#38, #39, #40, #41, #42, #43, #44, #45, #46, #47, #48, #49,
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#50, #51, #52, #53, #54, #55, #56, #57, #58, #59, #60, #61,
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#62, #63, #64, #65, #66, #67, #68, #69, #70, #71, #72, #73,
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#74, #75, #76, #77, #78, #79, #80, #81, #82, #83, #84, #85,
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#86, #87, #88, #89, #90, #91, #92, #93, #94, #95);
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const
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St64Table : array[0..63] of AnsiChar = ( #65, #66, #67, #68, #69,
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#70, #71, #72, #73, #74, #75, #76, #77, #78, #79,
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#80, #81, #82, #83, #84, #85, #86, #87, #88, #89,
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#90, #97, #98, #99, #100, #101, #102, #103, #104, #105,
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#106, #107, #108, #109, #110, #111, #112, #113, #114, #115,
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#116, #117, #118, #119, #120, #121, #122, #48, #49, #50,
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#51, #52, #53, #54, #55, #56, #57, #43, #47);
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const
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StD64Table : array[43..122] of Byte = ($3E, $7F, $7F, $7F, $3F, $34,
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$35, $36, $37, $38, $39, $3A, $3B, $3C, $3D, $7F, $7F, $7F, $7F,
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$7F, $7F, $7F, $00, $01, $02, $03, $04, $05, $06, $07, $08, $09,
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$0A, $0B, $0C, $0D, $0E, $0F, $10, $11, $12, $13, $14, $15, $16,
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$17, $18, $19, $7F, $7F, $7F, $7F, $7F, $7F, $1A, $1B, $1C, $1D,
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$1E, $1F, $20, $21, $22, $23, $24, $25, $26, $27, $28, $29, $2A,
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$2B, $2C, $2D, $2E, $2F, $30, $31, $32, $33);
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var
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CvtLock : TRTLCriticalSection;
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type
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TStContentTag = (ctType, ctEncoding, ctDescription, ctDisposition);
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PStTernaryNode = ^TStTernaryNode;
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TStTernaryNode = record
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SplitChar : AnsiChar;
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LoKid, EqKid, HiKid : PStTernaryNode;
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end;
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TStTernaryTree = class
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private
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Root : PStTernaryNode;
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pData : Pointer;
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function Insert(P : PStTernaryNode; C : PAnsiChar) : PStTernaryNode;
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class procedure DeleteSubTree(Root : PStTernaryNode);
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function NewNode : PStTernaryNode;
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public
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destructor Destroy; override;
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procedure InsertStr(C : PAnsiChar; Data : Pointer);
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function SearchUC(C : PAnsiChar; var Data : Pointer) : Boolean;
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end;
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{ TStTernaryTree }
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class procedure TStTernaryTree.DeleteSubTree(Root : PStTernaryNode);
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begin
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if Root <> nil then begin
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DeleteSubTree(Root^.LoKid);
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if Root^.SplitChar <> #0 then
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DeleteSubTree(Root^.EqKid);
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DeleteSubTree(Root^.HiKid);
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Dispose(Root);
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end;
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end;
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destructor TStTernaryTree.Destroy;
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begin
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DeleteSubTree(Root);
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inherited Destroy;
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end;
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function TStTernaryTree.NewNode : PStTernaryNode;
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begin
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Result := AllocMem(SizeOf(TStTernaryNode));
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end;
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function TStTernaryTree.Insert(P : PStTernaryNode; C : PAnsiChar) : PStTernaryNode;
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begin
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if P = nil then begin
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P := NewNode;
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P^.SplitChar := C^;
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if C^ <> #0 then begin
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Inc(C);
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P^.EqKid := Insert(P^.EqKid,C);
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end else
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P^.EqKid := pData;
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Result := P;
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Exit;
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end;
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if C^ < P^.SplitChar then
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P^.LoKid := Insert(P^.LoKid,C)
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else if C^ = P^.SplitChar then
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if C^ <> #0 then begin
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Inc(C);
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P^.EqKid := Insert(P^.EqKid,C);
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end else
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RaiseStError(EStMimeError, stscDupeString)
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else
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P^.HiKid := Insert(P^.HiKid,C);
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Result := P;
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end;
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procedure TStTernaryTree.InsertStr(C : PAnsiChar; Data : Pointer);
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begin
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pData := Data;
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Root := Insert(Root, C);
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end;
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function TStTernaryTree.SearchUC(C : PAnsiChar; var Data : Pointer) : Boolean;
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var
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P : PStTernaryNode;
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CU : AnsiChar;
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begin
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P := Root;
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while P <> nil do begin
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CU := System.UpCase(C^);
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if CU < P^.SplitChar then
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P := P^.LoKid
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else if CU = P^.SplitChar then begin
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Inc(C);
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if C^ = #0 then begin
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Data := P^.EqKid^.EqKid;
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Result := True;
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Exit;
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end;
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P := P^.EqKid;
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end else
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P := P^.HiKid;
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end;
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Result := False;
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end;
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{ TStConvertStream }
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constructor TStConvertStream.Create(Owner : TStMimeConverter);
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begin
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FOwner := Owner;
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inherited Create;
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end;
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417 |
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procedure TStConvertStream.Progress(Status : TStConvertState; PercentDone : Byte);
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begin
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if Assigned(FOnProgress) then
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OnProgress(Self, Status, PercentDone);
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end;
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423 |
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{ TStRawStream }
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constructor TStRawStream.Create(Owner : TStMimeConverter);
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begin
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inherited Create(Owner);
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end;
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429 |
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procedure TStRawStream.DecodeToStream(InStream, OutStream : TStream);
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begin
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Progress(csStarted, 0);
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try
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OutStream.CopyFrom(InStream, InStream.Size-InStream.Position);
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except
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Progress(csFinished, 0);
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raise;
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end;
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Progress(csFinished, 100);
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end;
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441 |
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procedure TStRawStream.EncodeToStream(InStream, OutStream : TStream);
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begin
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Progress(csStarted, 0);
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try
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OutStream.CopyFrom(InStream, InStream.Size);
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except
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Progress(csFinished, 0);
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raise;
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end;
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Progress(csFinished, 100);
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end;
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{ TStQuotedStream }
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constructor TStQuotedStream.Create(Owner : TStMimeConverter);
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begin
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inherited Create(Owner);
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end;
|
459 |
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procedure TStQuotedStream.DecodeToStream(InStream, OutStream : TStream);
|
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var
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I, O, Count, WS : Byte;
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InBuf : array[0..85] of Byte;
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OutBuf : array[0..85] of Byte;
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Decoding : Boolean;
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Keeper : Boolean;
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begin
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FillChar(InBuf, SizeOf(InBuf), #0);
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WS := $FF;
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Decoding := True;
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Keeper := False;
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472 |
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{ Skip any CR/LF's to get to the encoded stuff }
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while True do begin
|
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Count := InStream.Read(InBuf, 1);
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{ End of stream -- exit assuming we're done }
|
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if Count <> 1 then Exit;
|
478 |
if ((InBuf[0] <> $0D) and (InBuf[0] <> $0A)) then begin
|
479 |
Keeper := True;
|
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Break;
|
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end;
|
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end;
|
483 |
|
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while Decoding do begin
|
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{ Initialize }
|
486 |
if Keeper then begin
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I := 1;
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Keeper := False;
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end else begin
|
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I := 0;
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end;
|
492 |
O := 0;
|
493 |
|
494 |
{ Read in one line at a time - skipping over bad characters }
|
495 |
while True do begin
|
496 |
if InStream.Read(InBuf[I], 1) = 0 then Break;
|
497 |
case InBuf[I] of
|
498 |
$0A : Continue;
|
499 |
$0D : begin
|
500 |
Inc(I);
|
501 |
Break;
|
502 |
end;
|
503 |
{ Test for potential end of data }
|
504 |
{ '--' is probably the next Mime boundary }
|
505 |
$2D : if (I = 1) and (InBuf[0] = $2D) then Exit;
|
506 |
end;
|
507 |
Inc(I);
|
508 |
end;
|
509 |
|
510 |
if I = 0 then Exit;
|
511 |
Count := I;
|
512 |
I := 0;
|
513 |
|
514 |
{ Decode data to output stream }
|
515 |
while I < Count do begin
|
516 |
case InBuf[I] of
|
517 |
9 : begin
|
518 |
if WS = $FF then
|
519 |
WS := O;
|
520 |
OutBuf[O] := InBuf[I];
|
521 |
Inc(O);
|
522 |
Inc(I);
|
523 |
end;
|
524 |
13 : if WS = $FF then begin
|
525 |
OutBuf[O] := 13;
|
526 |
OutBuf[O+1] := 10;
|
527 |
Inc(O, 2);
|
528 |
Inc(I);
|
529 |
end else begin
|
530 |
OutBuf[WS] := 13;
|
531 |
OutBuf[WS+1] := 10;
|
532 |
O := WS+2;
|
533 |
Inc(I);
|
534 |
end;
|
535 |
32 : begin
|
536 |
if WS = $FF then
|
537 |
WS := O;
|
538 |
OutBuf[O] := InBuf[I];
|
539 |
Inc(O);
|
540 |
Inc(I);
|
541 |
end;
|
542 |
33..60 : begin
|
543 |
WS := $FF;
|
544 |
OutBuf[O] := InBuf[I];
|
545 |
Inc(O);
|
546 |
Inc(I);
|
547 |
end;
|
548 |
61 : begin
|
549 |
WS := $FF;
|
550 |
if I+2 >= Count then Break;
|
551 |
case InBuf[I+1] of
|
552 |
48 : OutBuf[O] := 0; {0}
|
553 |
49 : OutBuf[O] := 16; {1}
|
554 |
50 : OutBuf[O] := 32; {2}
|
555 |
51 : OutBuf[O] := 48; {3}
|
556 |
52 : OutBuf[O] := 64; {4}
|
557 |
53 : OutBuf[O] := 80; {5}
|
558 |
54 : OutBuf[O] := 96; {6}
|
559 |
55 : OutBuf[O] := 112; {7}
|
560 |
56 : OutBuf[O] := 128; {8}
|
561 |
57 : OutBuf[O] := 144; {9}
|
562 |
65 : OutBuf[O] := 160; {A}
|
563 |
66 : OutBuf[O] := 176; {B}
|
564 |
67 : OutBuf[O] := 192; {C}
|
565 |
68 : OutBuf[O] := 208; {D}
|
566 |
69 : OutBuf[O] := 224; {E}
|
567 |
70 : OutBuf[O] := 240; {F}
|
568 |
97 : OutBuf[O] := 160; {a}
|
569 |
98 : OutBuf[O] := 176; {b}
|
570 |
99 : OutBuf[O] := 192; {c}
|
571 |
100 : OutBuf[O] := 208; {d}
|
572 |
101 : OutBuf[O] := 224; {e}
|
573 |
102 : OutBuf[O] := 240; {f}
|
574 |
end;
|
575 |
case InBuf[I+2] of
|
576 |
48 : ; {0}
|
577 |
49 : OutBuf[O] := OutBuf[O] + 1; {1}
|
578 |
50 : OutBuf[O] := OutBuf[O] + 2; {2}
|
579 |
51 : OutBuf[O] := OutBuf[O] + 3; {3}
|
580 |
52 : OutBuf[O] := OutBuf[O] + 4; {4}
|
581 |
53 : OutBuf[O] := OutBuf[O] + 5; {5}
|
582 |
54 : OutBuf[O] := OutBuf[O] + 6; {6}
|
583 |
55 : OutBuf[O] := OutBuf[O] + 7; {7}
|
584 |
56 : OutBuf[O] := OutBuf[O] + 8; {8}
|
585 |
57 : OutBuf[O] := OutBuf[O] + 9; {9}
|
586 |
65 : OutBuf[O] := OutBuf[O] + 10; {A}
|
587 |
66 : OutBuf[O] := OutBuf[O] + 11; {B}
|
588 |
67 : OutBuf[O] := OutBuf[O] + 12; {C}
|
589 |
68 : OutBuf[O] := OutBuf[O] + 13; {D}
|
590 |
69 : OutBuf[O] := OutBuf[O] + 14; {E}
|
591 |
70 : OutBuf[O] := OutBuf[O] + 15; {F}
|
592 |
97 : OutBuf[O] := OutBuf[O] + 10; {a}
|
593 |
98 : OutBuf[O] := OutBuf[O] + 11; {b}
|
594 |
99 : OutBuf[O] := OutBuf[O] + 12; {c}
|
595 |
100 : OutBuf[O] := OutBuf[O] + 13; {d}
|
596 |
101 : OutBuf[O] := OutBuf[O] + 14; {e}
|
597 |
102 : OutBuf[O] := OutBuf[O] + 15; {f}
|
598 |
end;
|
599 |
Inc(I, 3);
|
600 |
Inc(O);
|
601 |
end;
|
602 |
62..126 : begin
|
603 |
WS := $FF;
|
604 |
OutBuf[O] := InBuf[I];
|
605 |
Inc(O);
|
606 |
Inc(I);
|
607 |
end;
|
608 |
else
|
609 |
Inc(I);
|
610 |
end;
|
611 |
end;
|
612 |
|
613 |
if O>0 then
|
614 |
OutStream.Write(OutBuf, O)
|
615 |
else
|
616 |
Break; { OutBuf is empty }
|
617 |
end;
|
618 |
end;
|
619 |
|
620 |
procedure TStQuotedStream.EncodeToStream(InStream, OutStream : TStream);
|
621 |
var
|
622 |
O, W : Integer;
|
623 |
WordBuf, OutBuf : array[0..80] of AnsiChar;
|
624 |
CurChar : AnsiChar;
|
625 |
|
626 |
procedure SendLine;
|
627 |
begin
|
628 |
if (OutBuf[O-1] = #9) or (OutBuf[O-1] = #32) then begin
|
629 |
OutBuf[O] := '=';
|
630 |
Inc(O);
|
631 |
end;
|
632 |
OutBuf[O] := #13;
|
633 |
OutBuf[O+1] := #10;
|
634 |
Inc(O, 2);
|
635 |
OutStream.Write(OutBuf, O);
|
636 |
O := 0;
|
637 |
end;
|
638 |
|
639 |
procedure AddWordToOutBuf;
|
640 |
var
|
641 |
J : Integer;
|
642 |
begin
|
643 |
if (O + W) > 74 then SendLine;
|
644 |
for J := 0 to (W - 1) do begin
|
645 |
OutBuf[O] := WordBuf[J];
|
646 |
Inc(O);
|
647 |
end;
|
648 |
W := 0;
|
649 |
end;
|
650 |
|
651 |
procedure AddHexToWord(B : Byte);
|
652 |
begin
|
653 |
if W > 73 then AddWordToOutBuf;
|
654 |
WordBuf[W] := '=';
|
655 |
WordBuf[W+1] := StHexDigits[B shr 4];
|
656 |
WordBuf[W+2] := StHexDigits[B and $F];
|
657 |
Inc(W, 3)
|
658 |
end;
|
659 |
|
660 |
begin
|
661 |
O := 0;
|
662 |
W := 0;
|
663 |
while InStream.Read(CurChar, 1) <> 0 do begin
|
664 |
if (Ord(CurChar) in [33..60, 62..126]) then begin
|
665 |
WordBuf[W] := CurChar;
|
666 |
Inc(W);
|
667 |
if W > 74 then AddWordToOutBuf;
|
668 |
end else if (CurChar = ' ') or (CurChar = #9) then begin
|
669 |
WordBuf[W] := CurChar;
|
670 |
Inc(W);
|
671 |
AddWordToOutBuf;
|
672 |
end else if (CurChar = #13) then begin
|
673 |
AddWordToOutBuf;
|
674 |
SendLine;
|
675 |
end else if (CurChar = #10) then begin
|
676 |
{ Do nothing }
|
677 |
end else begin
|
678 |
AddHexToWord(Byte(CurChar));
|
679 |
end;
|
680 |
end;
|
681 |
end;
|
682 |
|
683 |
{ TStUUStream }
|
684 |
constructor TStUUStream.Create(Owner : TStMimeConverter);
|
685 |
begin
|
686 |
inherited Create(Owner);
|
687 |
end;
|
688 |
|
689 |
procedure TStUUStream.DecodeToStream(InStream, OutStream : TStream);
|
690 |
var
|
691 |
I, O, Len, Count : Byte;
|
692 |
InBuf : array[0..85] of Byte;
|
693 |
OutBuf : array[0..65] of Byte;
|
694 |
FirstLine : Boolean;
|
695 |
begin
|
696 |
FirstLine := True;
|
697 |
|
698 |
while True do begin
|
699 |
{ Initialize }
|
700 |
I := 0;
|
701 |
O := 0;
|
702 |
|
703 |
{ Skip any CR/LF's to get to the encoded stuff }
|
704 |
while True do begin
|
705 |
Count := InStream.Read(InBuf, 1);
|
706 |
{ End of stream -- bail assuming we're done }
|
707 |
if Count <> 1 then Exit;
|
708 |
if FirstLine then begin
|
709 |
if ((InBuf[0] <> $0D) and (InBuf[0] <> $0A)) then begin
|
710 |
FirstLine := False;
|
711 |
Break;
|
712 |
end;
|
713 |
end else begin
|
714 |
if ((InBuf[0] = $0D) or (InBuf[0] = $0A)) then FirstLine := True;
|
715 |
end;
|
716 |
end;
|
717 |
|
718 |
{ We're done }
|
719 |
if AnsiChar(InBuf[0]) = '`' then Exit;
|
720 |
|
721 |
{ Get count for this line }
|
722 |
Len := (((InBuf[0] - $20) and $3F) * 4) div 3;
|
723 |
if (((InBuf[0] - $20) and $3F) * 4) mod 3 <> 0 then
|
724 |
Inc(Len);
|
725 |
|
726 |
Count := InStream.Read(InBuf, Len);
|
727 |
|
728 |
{ Unexpected situation }
|
729 |
if (Count <> Len) or (Count > 63) then
|
730 |
RaiseStError(EStMimeError, stscInStream);
|
731 |
{ Decode buffer }
|
732 |
while (I < Count) do begin
|
733 |
if ((Count - I) >= 4) then begin
|
734 |
{!!.01 -- Changed}
|
735 |
{Note: indexing inverted to avoid compiler problem with D6upd2 and BCB6}
|
736 |
OutBuf[O+2] := (((InBuf[I+2] - $20) and $3F) shl 6) or
|
737 |
(((InBuf[I+3] - $20) and $3F));
|
738 |
OutBuf[O+1] := (((InBuf[I+1] - $20) and $3F) shl 4) or
|
739 |
(((InBuf[I+2] - $20) and $3F) shr 2);
|
740 |
OutBuf[O] := (((InBuf[I] - $20) and $3F) shl 2) or
|
741 |
(((InBuf[I+1] - $20) and $3F) shr 4);
|
742 |
{!!.01 -- End Changed}
|
743 |
Inc(O, 3);
|
744 |
end else begin
|
745 |
if (Count >= 2) then begin
|
746 |
OutBuf[O] := (((InBuf[I] - $20) and $3F) shl 2) or
|
747 |
(((InBuf[I+1] - $20) and $3F) shr 4);
|
748 |
Inc(O);
|
749 |
end;
|
750 |
if (Count >= 3) then begin
|
751 |
OutBuf[O+1] := (((InBuf[I+1] - $20) and $3F) shl 4) or
|
752 |
(((InBuf[I+2] - $20) and $3F) shr 2);
|
753 |
Inc(O);
|
754 |
end;
|
755 |
end;
|
756 |
Inc(I, 4);
|
757 |
end;
|
758 |
OutStream.Write(OutBuf, O);
|
759 |
|
760 |
end;
|
761 |
end;
|
762 |
|
763 |
procedure TStUUStream.EncodeToStream(InStream, OutStream : TStream);
|
764 |
var
|
765 |
I, O, Count, Temp : Byte;
|
766 |
InBuf : array[1..45] of Byte;
|
767 |
OutBuf : array[0..63] of AnsiChar;
|
768 |
S : AnsiString;
|
769 |
begin
|
770 |
S := Format('begin 600 %s'#13#10, [FCurrentFile]);
|
771 |
OutStream.Write(S[1], Length(S));
|
772 |
|
773 |
{ Encode and stream the attachment }
|
774 |
repeat
|
775 |
Count := InStream.Read(InBuf, SizeOf(InBuf));
|
776 |
if Count <= 0 then Break;
|
777 |
I := 1;
|
778 |
O := 0;
|
779 |
OutBuf[O] := AnsiChar(StUUTable[Count and $3F]);
|
780 |
Inc(O);
|
781 |
while I+2 <= Count do begin
|
782 |
{ Encode 1st byte }
|
783 |
Temp := (InBuf[I] shr 2);
|
784 |
OutBuf[O] := AnsiChar(StUUTable[Temp and $3F]);
|
785 |
|
786 |
{ Encode 1st/2nd byte }
|
787 |
Temp := (InBuf[I] shl 4) or (InBuf[I+1] shr 4);
|
788 |
OutBuf[O+1] := AnsiChar(StUUTable[Temp and $3F]);
|
789 |
|
790 |
{ Encode 2nd/3rd byte }
|
791 |
Temp := (InBuf[I+1] shl 2) or (InBuf[I+2] shr 6);
|
792 |
OutBuf[O+2] := AnsiChar(StUUTable[Temp and $3F]);
|
793 |
|
794 |
{ Encode 3rd byte }
|
795 |
Temp := (InBuf[I+2] and $3F);
|
796 |
OutBuf[O+3] := AnsiChar(StUUTable[Temp]);
|
797 |
|
798 |
Inc(I, 3);
|
799 |
Inc(O, 4);
|
800 |
end;
|
801 |
|
802 |
{ Are there odd bytes to add? }
|
803 |
if (I <= Count) then begin
|
804 |
Temp := (InBuf[I] shr 2);
|
805 |
OutBuf[O] := AnsiChar(StUUTable[Temp and $3F]);
|
806 |
|
807 |
{ One odd byte }
|
808 |
if (I = Count) then begin
|
809 |
Temp := (InBuf[I] shl 4) and $30;
|
810 |
OutBuf[O+1] := AnsiChar(StUUTable[Temp and $3F]);
|
811 |
Inc(O, 2);
|
812 |
{ Two odd bytes }
|
813 |
end else begin
|
814 |
Temp := ((InBuf[I] shl 4) and $30) or ((InBuf[I+1] shr 4) and $0F);
|
815 |
OutBuf[O+1] := AnsiChar(StUUTable[Temp and $3F]);
|
816 |
Temp := (InBuf[I+1] shl 2) and $3C;
|
817 |
OutBuf[O+2] := AnsiChar(StUUTable[Temp and $3F]);
|
818 |
Inc(O, 3);
|
819 |
end;
|
820 |
end;
|
821 |
|
822 |
{ Add CR/LF }
|
823 |
OutBuf[O] := #13;
|
824 |
OutBuf[O+1] := #10;
|
825 |
|
826 |
{ Write line to stream }
|
827 |
OutStream.Write(OutBuf, (O + 2));
|
828 |
until Count < SizeOf(InBuf);
|
829 |
|
830 |
{ Add terminating end }
|
831 |
StrCopy(StrECopy(OutBuf, '`'#13#10), 'end'#13#10);
|
832 |
OutStream.Write(OutBuf, StrLen(OutBuf));
|
833 |
end;
|
834 |
|
835 |
{ TStBase64Stream }
|
836 |
constructor TStBase64Stream.Create(Owner : TStMimeConverter);
|
837 |
begin
|
838 |
inherited Create(Owner);
|
839 |
end;
|
840 |
|
841 |
procedure TStBase64Stream.DecodeToStream(InStream, OutStream : TStream);
|
842 |
var
|
843 |
I, O, Count, c1, c2, c3 : Byte;
|
844 |
InBuf : array[0..85] of Byte;
|
845 |
OutBuf : array[0..65] of Byte;
|
846 |
Decoding : Boolean;
|
847 |
begin
|
848 |
Decoding := True;
|
849 |
while Decoding do begin
|
850 |
{ Initialize }
|
851 |
O := 0;
|
852 |
I := 0;
|
853 |
|
854 |
{ Skip any CR/LF's to get to the encoded stuff }
|
855 |
while True do begin
|
856 |
Count := InStream.Read(InBuf, 1);
|
857 |
{ End of stream -- exit assuming we're done }
|
858 |
if Count <> 1 then Exit;
|
859 |
if ((InBuf[0] <> $0D) and (InBuf[0] <> $0A)) then begin
|
860 |
Inc(I);
|
861 |
Break;
|
862 |
end;
|
863 |
end;
|
864 |
|
865 |
{ Read in a line at a time - skipping over bad characters }
|
866 |
while True do begin
|
867 |
if InStream.Read(InBuf[I], 1) = 0 then Break;
|
868 |
case InBuf[I] of
|
869 |
$00..$09 : Continue;
|
870 |
$0A : Break;
|
871 |
$0B..$0C : Continue;
|
872 |
$0D : Break;
|
873 |
$0E..$2A : Continue;
|
874 |
{ Test for potential end of data }
|
875 |
{ '--' is probably the next Mime boundary }
|
876 |
$2D : begin
|
877 |
if I = 1 then
|
878 |
if (InBuf[0] = $2D) then
|
879 |
Exit;
|
880 |
Continue;
|
881 |
end;
|
882 |
$3D : begin
|
883 |
Inc(I);
|
884 |
Break;
|
885 |
end;
|
886 |
$7B..$FF : Continue;
|
887 |
end;
|
888 |
|
889 |
if (StD64Table[InBuf[I]] = $7F) then Continue;
|
890 |
Inc(I);
|
891 |
end;
|
892 |
|
893 |
{ 'end' can mean end of data for base64 }
|
894 |
if (InBuf[0] = $65) and (InBuf[1] = $6E) and
|
895 |
(InBuf[2] = $64) and (InBuf[3] = $0D) then Exit;
|
896 |
|
897 |
Count := I;
|
898 |
I := 0;
|
899 |
|
900 |
{ Decode data to output stream }
|
901 |
while I < Count do begin
|
902 |
c1 := StD64Table[InBuf[I]];
|
903 |
c2 := StD64Table[InBuf[I+1]];
|
904 |
c3 := StD64Table[InBuf[I+2]];
|
905 |
OutBuf[O] := ((c1 shl 2) or (c2 shr 4));
|
906 |
Inc(O);
|
907 |
if AnsiChar(InBuf[I+2]) <> '=' then begin
|
908 |
OutBuf[O] := ((c2 shl 4) or (c3 shr 2));
|
909 |
Inc(O);
|
910 |
if AnsiChar(InBuf[I+3]) <> '=' then begin
|
911 |
OutBuf[O] := ((c3 shl 6) or StD64Table[InBuf[I+3]]);
|
912 |
Inc(O);
|
913 |
end else
|
914 |
Decoding := False;
|
915 |
end else
|
916 |
Decoding := False;
|
917 |
Inc(I, 4);
|
918 |
end;
|
919 |
OutStream.Write(OutBuf, O);
|
920 |
end;
|
921 |
end;
|
922 |
|
923 |
procedure TStBase64Stream.EncodeToStream(InStream, OutStream : TStream);
|
924 |
var
|
925 |
I, O, Count : Integer;
|
926 |
InBuf : array[1..45] of Byte;
|
927 |
OutBuf : array[0..62] of AnsiChar;
|
928 |
Temp : Byte;
|
929 |
S : AnsiString;
|
930 |
begin
|
931 |
FillChar(OutBuf, Sizeof(OutBuf), #0);
|
932 |
|
933 |
if not FOwner.MimeHeaders then begin
|
934 |
S := Format('begin-base64 600 %s'#13#10, [FCurrentFile]);
|
935 |
OutStream.Write(S[1], Length(S));
|
936 |
end;
|
937 |
|
938 |
{ Encode and stream the attachment }
|
939 |
repeat
|
940 |
Count := InStream.Read(InBuf, SizeOf(InBuf));
|
941 |
if Count = 0 then Break;
|
942 |
I := 1;
|
943 |
O := 0;
|
944 |
while I <= (Count-2) do begin
|
945 |
{ Encode 1st byte }
|
946 |
Temp := (InBuf[I] shr 2);
|
947 |
OutBuf[O] := AnsiChar(St64Table[Temp and $3F]);
|
948 |
|
949 |
{ Encode 1st/2nd byte }
|
950 |
Temp := (InBuf[I] shl 4) or (InBuf[I+1] shr 4);
|
951 |
OutBuf[O+1] := AnsiChar(St64Table[Temp and $3F]);
|
952 |
|
953 |
{ Encode 2nd/3rd byte }
|
954 |
Temp := (InBuf[I+1] shl 2) or (InBuf[I+2] shr 6);
|
955 |
OutBuf[O+2] := AnsiChar(St64Table[Temp and $3F]);
|
956 |
|
957 |
{ Encode 3rd byte }
|
958 |
Temp := (InBuf[I+2] and $3F);
|
959 |
OutBuf[O+3] := AnsiChar(St64Table[Temp]);
|
960 |
|
961 |
Inc(I, 3);
|
962 |
Inc(O, 4);
|
963 |
end;
|
964 |
|
965 |
{ Are there odd bytes to add? }
|
966 |
if (I <= Count) then begin
|
967 |
Temp := (InBuf[I] shr 2);
|
968 |
OutBuf[O] := AnsiChar(St64Table[Temp and $3F]);
|
969 |
|
970 |
{ One odd byte }
|
971 |
if I = Count then begin
|
972 |
Temp := (InBuf[I] shl 4) and $30;
|
973 |
OutBuf[O+1] := AnsiChar(St64Table[Temp and $3F]);
|
974 |
OutBuf[O+2] := '=';
|
975 |
{ Two odd bytes }
|
976 |
end else begin
|
977 |
Temp := ((InBuf[I] shl 4) and $30) or ((InBuf[I+1] shr 4) and $0F);
|
978 |
OutBuf[O+1] := AnsiChar(St64Table[Temp and $3F]);
|
979 |
Temp := (InBuf[I+1] shl 2) and $3C;
|
980 |
OutBuf[O+2] := AnsiChar(St64Table[Temp and $3F]);
|
981 |
end;
|
982 |
{ Add padding }
|
983 |
OutBuf[O+3] := '=';
|
984 |
Inc(O, 4);
|
985 |
end;
|
986 |
|
987 |
{ Add CR/LF }
|
988 |
OutBuf[O] := #13;
|
989 |
OutBuf[O+1] := #10;
|
990 |
|
991 |
{ Write line to stream }
|
992 |
OutStream.Write(OutBuf, (O + 2));
|
993 |
until Count < SizeOf(InBuf);
|
994 |
|
995 |
{ Add terminating end if necessary }
|
996 |
if not FOwner.MimeHeaders then begin
|
997 |
StrCopy(OutBuf, 'end'#13#10);
|
998 |
OutStream.Write(OutBuf, StrLen(OutBuf));
|
999 |
end;
|
1000 |
end;
|
1001 |
|
1002 |
|
1003 |
{ TConverterList }
|
1004 |
|
1005 |
type
|
1006 |
TCvtFormat = class
|
1007 |
ConverterClass : TStConverterClass;
|
1008 |
Description : string;
|
1009 |
end;
|
1010 |
|
1011 |
TConverterList = class(TStringList)
|
1012 |
protected
|
1013 |
procedure LockList;
|
1014 |
procedure UnlockList;
|
1015 |
public
|
1016 |
constructor Create;
|
1017 |
destructor Destroy; override;
|
1018 |
procedure AddConverter(const ATag, ADesc : string; AClass : TStConverterClass);
|
1019 |
procedure Remove(AClass: TStConverterClass);
|
1020 |
end;
|
1021 |
|
1022 |
constructor TConverterList.Create;
|
1023 |
begin
|
1024 |
inherited Create;
|
1025 |
Sorted := True;
|
1026 |
Duplicates := dupError;
|
1027 |
AddConverter('raw', 'Raw Copy', TStRawStream);
|
1028 |
AddConverter('base64', 'Base64', TStBase64Stream);
|
1029 |
AddConverter('quoted-printable', 'Quoted-Printable', TStQuotedStream);
|
1030 |
AddConverter('uuencoded', 'UUEncoded', TStUUStream);
|
1031 |
end;
|
1032 |
|
1033 |
destructor TConverterList.Destroy;
|
1034 |
var
|
1035 |
I: Integer;
|
1036 |
begin
|
1037 |
LockList;
|
1038 |
try
|
1039 |
for I := 0 to Count-1 do
|
1040 |
TCvtFormat(Objects[I]).Free;
|
1041 |
inherited Destroy;
|
1042 |
finally
|
1043 |
UnlockList;
|
1044 |
end;
|
1045 |
end;
|
1046 |
|
1047 |
procedure TConverterList.LockList;
|
1048 |
begin
|
1049 |
EnterCriticalSection(CvtLock);
|
1050 |
end;
|
1051 |
|
1052 |
procedure TConverterList.UnlockList;
|
1053 |
begin
|
1054 |
LeaveCriticalSection(CvtLock);
|
1055 |
end;
|
1056 |
|
1057 |
procedure TConverterList.AddConverter(const ATag, ADesc : string; AClass : TStConverterClass);
|
1058 |
var
|
1059 |
Temp : TCvtFormat;
|
1060 |
begin
|
1061 |
LockList;
|
1062 |
try
|
1063 |
Temp := TCvtFormat.Create;
|
1064 |
with Temp do begin
|
1065 |
ConverterClass := AClass;
|
1066 |
Description := ADesc;
|
1067 |
end;
|
1068 |
AddObject(ATag, Temp);
|
1069 |
finally
|
1070 |
UnlockList;
|
1071 |
end;
|
1072 |
end;
|
1073 |
|
1074 |
procedure TConverterList.Remove(AClass: TStConverterClass);
|
1075 |
var
|
1076 |
I : Integer;
|
1077 |
Cvt : TCvtFormat;
|
1078 |
begin
|
1079 |
LockList;
|
1080 |
try
|
1081 |
for I := Count-1 downto 0 do begin
|
1082 |
Cvt := TCvtFormat(Objects[I]);
|
1083 |
if Cvt.ConverterClass.InheritsFrom(AClass) then begin
|
1084 |
Cvt.Free;
|
1085 |
Delete(I);
|
1086 |
end;
|
1087 |
end;
|
1088 |
finally
|
1089 |
UnlockList;
|
1090 |
end;
|
1091 |
end;
|
1092 |
|
1093 |
const
|
1094 |
Converters : TConverterList = nil;
|
1095 |
|
1096 |
function GetConverters : TConverterList;
|
1097 |
begin
|
1098 |
EnterCriticalSection(CvtLock);
|
1099 |
try
|
1100 |
if Converters = nil then
|
1101 |
Converters := TConverterList.Create;
|
1102 |
Result := Converters;
|
1103 |
finally
|
1104 |
LeaveCriticalSection(CvtLock);
|
1105 |
end;
|
1106 |
end;
|
1107 |
|
1108 |
{ TStMimeConverter }
|
1109 |
constructor TStMimeConverter.Create;
|
1110 |
begin
|
1111 |
inherited Create;
|
1112 |
InitConverter;
|
1113 |
end;
|
1114 |
|
1115 |
constructor TStMimeConverter.CreateInit(AStream : TStream);
|
1116 |
begin
|
1117 |
inherited Create;
|
1118 |
InitConverter;
|
1119 |
if Assigned(AStream) then
|
1120 |
Stream := AStream;
|
1121 |
end;
|
1122 |
|
1123 |
destructor TStMimeConverter.Destroy;
|
1124 |
begin
|
1125 |
DeleteAttachments;
|
1126 |
FAttachments.Free;
|
1127 |
FInternalStream.Free;
|
1128 |
FConverter.Free;
|
1129 |
inherited Destroy;
|
1130 |
end;
|
1131 |
|
1132 |
procedure TStMimeConverter.AddFileAttachment(const AFileName : string);
|
1133 |
var
|
1134 |
F : TFileStream;
|
1135 |
begin
|
1136 |
F := TFileStream.Create(AFileName, AttachmentFileMode);
|
1137 |
try
|
1138 |
AddStreamAttachment(F, AFileName);
|
1139 |
finally
|
1140 |
F.Free;
|
1141 |
end;
|
1142 |
end;
|
1143 |
|
1144 |
procedure TStMimeConverter.AddMimeFooters;
|
1145 |
var
|
1146 |
SavePos : LongInt;
|
1147 |
Temp : AnsiString;
|
1148 |
begin
|
1149 |
SavePos := Stream.Position;
|
1150 |
Stream.Write(CRLFStr, SizeOf(CRLFStr));
|
1151 |
Temp := '--' + Boundary + '--';
|
1152 |
Stream.Write(Temp[1], Length(Temp));
|
1153 |
Stream.Write(CRLFStr, SizeOf(CRLFStr));
|
1154 |
Stream.Position := SavePos;
|
1155 |
end;
|
1156 |
|
1157 |
procedure TStMimeConverter.AddMimeHeaders(const AFileName : string);
|
1158 |
var
|
1159 |
Temp, Descr : AnsiString;
|
1160 |
begin
|
1161 |
Stream.Write(CRLFStr, SizeOf(CRLFStr));
|
1162 |
Temp := '--' + Boundary;
|
1163 |
Stream.Write(Temp[1], Length(Temp));
|
1164 |
Stream.Write(CRLFStr, SizeOf(CRLFStr));
|
1165 |
|
1166 |
Temp := Format('Content-Type: %s; name="%s"'#13#10,
|
1167 |
[ContentType, ExtractFileName(AFileName)]);
|
1168 |
Stream.Write(Temp[1], Length(Temp));
|
1169 |
|
1170 |
Temp := Format('Content-Transfer-Encoding: %s'#13#10, [Encoding]);
|
1171 |
Stream.Write(Temp[1], Length(Temp));
|
1172 |
|
1173 |
if ContentDescription = '' then
|
1174 |
Descr := ExtractFileName(AFileName)
|
1175 |
else
|
1176 |
Descr := ContentDescription;
|
1177 |
Temp := Format('Content-Description: %s'#13#10, [Descr]);
|
1178 |
Stream.Write(Temp[1], Length(Temp));
|
1179 |
|
1180 |
Temp := Format('Content-Disposition: %s; filename="%s"'#13#10#13#10,
|
1181 |
[ContentDisposition, ExtractFileName(AFileName)]);
|
1182 |
Stream.Write(Temp[1], Length(Temp));
|
1183 |
end;
|
1184 |
|
1185 |
procedure TStMimeConverter.AddStreamAttachment(AStream : TStream; const AFileName : string);
|
1186 |
var
|
1187 |
I : Integer;
|
1188 |
AttObj : TStAttachment;
|
1189 |
SavePos : LongInt;
|
1190 |
begin
|
1191 |
if Converters.Find(FEncoding, I) then
|
1192 |
ForceType(TCvtFormat(Converters.Objects[I]).ConverterClass)
|
1193 |
else
|
1194 |
RaiseStError(EStMimeError, stscBadEncodeFmt);
|
1195 |
|
1196 |
SavePos := Stream.Position;
|
1197 |
|
1198 |
if FMimeHeaders then
|
1199 |
AddMimeHeaders(AFileName);
|
1200 |
|
1201 |
FConverter.CurrentFile := ExtractFilename(AFileName);
|
1202 |
FConverter.EncodeToStream(AStream, Stream);
|
1203 |
|
1204 |
if MimeHeaders then
|
1205 |
AddMimeFooters;
|
1206 |
|
1207 |
AttObj := TStAttachment.Create;
|
1208 |
with AttObj do begin
|
1209 |
atContentDescription := ContentDescription;
|
1210 |
atContentDisposition := ContentDisposition;
|
1211 |
atContentType := ContentType;
|
1212 |
atEncoding := Encoding;
|
1213 |
atSize := AStream.Size;
|
1214 |
atStreamOffset := SavePos;
|
1215 |
end;
|
1216 |
|
1217 |
FAttachments.AddObject(ExtractFilename(AFileName), AttObj);
|
1218 |
end;
|
1219 |
|
1220 |
procedure TStMimeConverter.DeleteAttachments;
|
1221 |
var
|
1222 |
I : Integer;
|
1223 |
begin
|
1224 |
if not Assigned(FAttachments) then Exit;
|
1225 |
for I := 0 to (FAttachments.Count - 1) do
|
1226 |
TStAttachment(FAttachments.Objects[I]).Free;
|
1227 |
FAttachments.Clear;
|
1228 |
end;
|
1229 |
|
1230 |
procedure TStMimeConverter.ExtractAttachment(const Attachment : string);
|
1231 |
var
|
1232 |
I : Integer;
|
1233 |
begin
|
1234 |
if FAttachments.Find(Attachment, I) then
|
1235 |
ExtractAttachmentIndex(I)
|
1236 |
else
|
1237 |
RaiseStError(EStMimeError, stscBadAttachment);
|
1238 |
end;
|
1239 |
|
1240 |
procedure TStMimeConverter.ExtractAttachmentIndex(Index : Integer);
|
1241 |
var
|
1242 |
F : TFileStream;
|
1243 |
S : string;
|
1244 |
begin
|
1245 |
if (Index < 0) or (Index > (FAttachments.Count - 1)) then
|
1246 |
RaiseStError(EStMimeError, stscBadAttachment);
|
1247 |
|
1248 |
if FDirectory <> '' then begin
|
1249 |
S := JustPathNameL(FDirectory);
|
1250 |
S := AddBackSlashL(S);
|
1251 |
S := S + TStAttachment(FAttachments.Objects[Index]).atFileName;
|
1252 |
end else begin
|
1253 |
S := TStAttachment(FAttachments.Objects[Index]).atFileName;
|
1254 |
end;
|
1255 |
|
1256 |
SaveAs(S);
|
1257 |
F := TFileStream.Create(S, fmCreate);
|
1258 |
try
|
1259 |
ExtractToStream(Index, F);
|
1260 |
finally
|
1261 |
F.Free;
|
1262 |
end;
|
1263 |
end;
|
1264 |
|
1265 |
procedure TStMimeConverter.ExtractToStream(Index : Integer; AStream : TStream);
|
1266 |
var
|
1267 |
I : Integer;
|
1268 |
SaveEncoding : string;
|
1269 |
begin
|
1270 |
SaveEncoding := FEncoding;
|
1271 |
try
|
1272 |
{ Position stream to beginning of data }
|
1273 |
if (Index < 0) or (Index > (FAttachments.Count - 1)) then
|
1274 |
RaiseStError(EStMimeError, stscBadAttachment);
|
1275 |
PositionForExtract(TStAttachment(FAttachments.Objects[Index]));
|
1276 |
|
1277 |
{ Find matching converter type and use it }
|
1278 |
if Converters.Find(TStAttachment(FAttachments.Objects[Index]).atEncoding, I) then
|
1279 |
ForceType(TCvtFormat(Converters.Objects[I]).ConverterClass)
|
1280 |
else
|
1281 |
{ If we don't have a matching converter, save as a raw stream }
|
1282 |
ForceType(TStRawStream);
|
1283 |
|
1284 |
FConverter.DecodeToStream(Stream, AStream);
|
1285 |
finally
|
1286 |
FEncoding := SaveEncoding;
|
1287 |
end;
|
1288 |
end;
|
1289 |
|
1290 |
procedure TStMimeConverter.ExtractAttachments;
|
1291 |
var
|
1292 |
I : Integer;
|
1293 |
begin
|
1294 |
for I := 0 to (FAttachments.Count - 1) do
|
1295 |
ExtractAttachmentIndex(I);
|
1296 |
end;
|
1297 |
|
1298 |
procedure TStMimeConverter.FillConverterList(List : TStrings);
|
1299 |
var
|
1300 |
I : Integer;
|
1301 |
begin
|
1302 |
List.Clear;
|
1303 |
for I := 0 to (Converters.Count - 1) do
|
1304 |
List.Add(TCvtFormat(Converters.Objects[I]).Description);
|
1305 |
end;
|
1306 |
|
1307 |
procedure TStMimeConverter.FindOldAttachment;
|
1308 |
const
|
1309 |
StmSize = 32*1024;
|
1310 |
type
|
1311 |
MemArray = array[0..(StmSize-1)] of AnsiChar;
|
1312 |
var
|
1313 |
I, Pos, ScanSize, StmOffset : LongInt;
|
1314 |
NewAtt : TStAttachment;
|
1315 |
ScanStream : TMemoryStream;
|
1316 |
FoundPos : Cardinal;
|
1317 |
SearchString : AnsiString;//array[0..80] of Char;
|
1318 |
TempBuf : AnsiString; //array[0..80] of Char;
|
1319 |
TokenBuf : AnsiString; //array[0..80] of Char;
|
1320 |
TempWord : Word;
|
1321 |
BMT : BTable;
|
1322 |
|
1323 |
function Min(A, B : LongInt) : LongInt;
|
1324 |
begin
|
1325 |
Result := A;
|
1326 |
if A > B then
|
1327 |
Result := B;
|
1328 |
end;
|
1329 |
|
1330 |
begin
|
1331 |
NewAtt := nil;
|
1332 |
|
1333 |
{ Position stream to beginning }
|
1334 |
Stream.Seek(0, soFromBeginning);
|
1335 |
|
1336 |
{ Create memory stream for search }
|
1337 |
ScanStream := TMemoryStream.Create;
|
1338 |
try
|
1339 |
ScanStream.SetSize(StmSize);
|
1340 |
StmOffset := Stream.Position;
|
1341 |
ScanSize := ScanStream.CopyFrom(Stream, Min(StmSize,
|
1342 |
(Stream.Size - Stream.Position)));
|
1343 |
|
1344 |
SearchString := #13#10'begin'; // StrPCopy(SearchString, #13#10'begin');
|
1345 |
BMMakeTableZ(PAnsiChar(SearchString), BMT);
|
1346 |
ScanStream.Position := 0;
|
1347 |
|
1348 |
while True do begin
|
1349 |
{ Look for an old style attachment -- process appropriately }
|
1350 |
if BMSearchZ(ScanStream.Memory^, ScanSize, BMT, PAnsiChar(SearchString), FoundPos) then begin
|
1351 |
|
1352 |
FillChar(TempBuf, SizeOf(TempBuf), #0);
|
1353 |
Pos := FoundPos + 2;
|
1354 |
|
1355 |
{ Collect line containing potential begin marker }
|
1356 |
for I := 0 to 79 do begin
|
1357 |
if MemArray(ScanStream.Memory^)[Pos+I] = #13 then Break;
|
1358 |
TempBuf[I] := MemArray(ScanStream.Memory^)[Pos+I];
|
1359 |
end;
|
1360 |
|
1361 |
{ Grab second word -- should be a number if this is an attachment }
|
1362 |
TokenBuf := ExtractWordL(2, TempBuf, ' ');
|
1363 |
if Str2WordL(TokenBuf, TempWord) then begin
|
1364 |
{ We've got an attachment }
|
1365 |
NewAtt := TStAttachment.Create;
|
1366 |
NewAtt.atStreamOffset := Pos;
|
1367 |
TokenBuf := ExtractWordL(1, TempBuf, ' ');
|
1368 |
if CompStringL(TokenBuf, 'begin') = 0 then
|
1369 |
NewAtt.atEncoding := 'uuencoded'
|
1370 |
else
|
1371 |
NewAtt.atEncoding := 'base64';
|
1372 |
TokenBuf := ExtractWordL(3, TempBuf, ' ');
|
1373 |
NewAtt.atFilename := TokenBuf;
|
1374 |
NewAtt.atOldStyle := True;
|
1375 |
Attachments.AddObject(NewAtt.atFileName, NewAtt);
|
1376 |
NewAtt := nil;
|
1377 |
Break;
|
1378 |
end else begin
|
1379 |
Stream.Position := (StmOffset + LongInt(FoundPos) + LongInt(Length(SearchString)));
|
1380 |
StmOffset := Stream.Position;
|
1381 |
ScanStream.Position := 0;
|
1382 |
ScanSize := ScanStream.CopyFrom(Stream,
|
1383 |
Min(StmSize, (Stream.Size - Stream.Position)));
|
1384 |
end;
|
1385 |
|
1386 |
end else begin
|
1387 |
if (ScanSize < StmSize) then Exit;
|
1388 |
Stream.Seek(-Length(SearchString), soFromCurrent);
|
1389 |
StmOffset := Stream.Position;
|
1390 |
ScanStream.Position := 0;
|
1391 |
ScanSize := ScanStream.CopyFrom(Stream,
|
1392 |
Min(StmSize, (Stream.Size - Stream.Position)));
|
1393 |
end;
|
1394 |
end;
|
1395 |
finally
|
1396 |
ScanStream.Free;
|
1397 |
NewAtt.Free;
|
1398 |
end;
|
1399 |
end;
|
1400 |
|
1401 |
procedure TStMimeConverter.ForceType(ConverterType : TStConverterClass);
|
1402 |
begin
|
1403 |
if not (Converter is ConverterType) then begin
|
1404 |
FConverter.Free;
|
1405 |
FConverter := nil;
|
1406 |
FConverter := ConverterType.Create(Self);
|
1407 |
FConverter.OnProgress := Progress;
|
1408 |
end;
|
1409 |
end;
|
1410 |
|
1411 |
function TStMimeConverter.GenerateBoundary : string;
|
1412 |
var
|
1413 |
Temp : TDateTime;
|
1414 |
begin
|
1415 |
Temp := Now;
|
1416 |
Randomize;
|
1417 |
Result := 'StMime-' + IntToHex(Trunc(Temp), 8) + '-' +
|
1418 |
IntToHex(Trunc(Frac(Temp) * 10000), 8) + '-' +
|
1419 |
IntToHex(GetTickCount, 8) + '-' + IntToHex(Random($FFFF), 4);
|
1420 |
end;
|
1421 |
|
1422 |
function TStMimeConverter.GetBoundary : string;
|
1423 |
begin
|
1424 |
if FBoundary = '' then
|
1425 |
FBoundary := GenerateBoundary;
|
1426 |
Result := FBoundary;
|
1427 |
end;
|
1428 |
|
1429 |
function TStMimeConverter.GetStream : TStream;
|
1430 |
begin
|
1431 |
if not Assigned(FStream) then begin
|
1432 |
if not Assigned(FInternalStream) then
|
1433 |
FInternalStream := TMemoryStream.Create;
|
1434 |
FStream := FInternalStream;
|
1435 |
end;
|
1436 |
Result := FStream;
|
1437 |
end;
|
1438 |
|
1439 |
function TStMimeConverter.GetTag(const Description : string): string;
|
1440 |
var
|
1441 |
I : Integer;
|
1442 |
begin
|
1443 |
for I := 0 to (Converters.Count - 1) do begin
|
1444 |
if CompareStr(Description,
|
1445 |
TCvtFormat(Converters.Objects[I]).Description) = 0 then begin
|
1446 |
Result := Converters[I];
|
1447 |
Exit;
|
1448 |
end;
|
1449 |
end;
|
1450 |
end;
|
1451 |
|
1452 |
procedure TStMimeConverter.InitConverter;
|
1453 |
begin
|
1454 |
FAttachments := TStringList.Create;
|
1455 |
FContentType := DefStContentType;
|
1456 |
FContentDisposition := DefStContentDisposition;
|
1457 |
FEncoding := DefStMimeEncoding;
|
1458 |
FMimeHeaders := True;
|
1459 |
GetConverters;
|
1460 |
end;
|
1461 |
|
1462 |
procedure TStMimeConverter.PositionForExtract(Att : TStAttachment);
|
1463 |
const
|
1464 |
BufSize = 1024;
|
1465 |
var
|
1466 |
I : Integer;
|
1467 |
Ptr : PAnsiChar;
|
1468 |
TempBuf : array[0..BufSize] of AnsiChar;
|
1469 |
begin
|
1470 |
FillChar(TempBuf, SizeOf(TempBuf), #0);
|
1471 |
Stream.Position := Att.atStreamOffset;
|
1472 |
Stream.Read(TempBuf, BufSize);
|
1473 |
if Att.atOldStyle then begin
|
1474 |
for I := 0 to BufSize do begin
|
1475 |
if TempBuf[I] = #13 then begin
|
1476 |
Stream.Position := (Att.atStreamOffset + I);
|
1477 |
Exit;
|
1478 |
end;
|
1479 |
end;
|
1480 |
end else begin
|
1481 |
Ptr := StrPos(TempBuf, #13#10#13#10'');
|
1482 |
Stream.Position := (Att.atStreamOffset + (Ptr - TempBuf));
|
1483 |
end;
|
1484 |
end;
|
1485 |
|
1486 |
procedure TStMimeConverter.Progress(Sender : TObject; Status : TStConvertState;
|
1487 |
PercentDone : Byte);
|
1488 |
begin
|
1489 |
if Assigned(FOnProgress) then
|
1490 |
FOnProgress(Sender, Status, PercentDone);
|
1491 |
end;
|
1492 |
|
1493 |
class procedure TStMimeConverter.RegisterConverter(const ATag, ADesc : string;
|
1494 |
AClass : TStConverterClass);
|
1495 |
begin
|
1496 |
GetConverters.AddConverter(ATag, ADesc, AClass);
|
1497 |
end;
|
1498 |
|
1499 |
procedure TStMimeConverter.SaveAs(var FileName : string);
|
1500 |
begin
|
1501 |
if Assigned(FOnSaveAs) then FOnSaveAs(Self, FileName);
|
1502 |
end;
|
1503 |
|
1504 |
procedure TStMimeConverter.ScanAttachments;
|
1505 |
const
|
1506 |
StmSize = 32*1024;
|
1507 |
type
|
1508 |
MemArray = array[0..(StmSize-1)] of AnsiChar;
|
1509 |
var
|
1510 |
I, Pos, ScanSize, StmOffset : LongInt;
|
1511 |
TTree : TStTernaryTree;
|
1512 |
TTag : Pointer;
|
1513 |
NewAtt : TStAttachment;
|
1514 |
ScanStream : TMemoryStream;
|
1515 |
OStr : TStString;
|
1516 |
FoundPos, BoundPos : Cardinal;
|
1517 |
SearchString : array[0..80] of AnsiChar;
|
1518 |
TempBuf : array[0..1024] of AnsiChar;
|
1519 |
AttToken : array[0..MaxMimeLine] of AnsiChar;
|
1520 |
BMT : BTable;
|
1521 |
|
1522 |
function Min(A, B : LongInt) : LongInt;
|
1523 |
begin
|
1524 |
Result := A;
|
1525 |
if A > B then
|
1526 |
Result := B;
|
1527 |
end;
|
1528 |
|
1529 |
procedure InitTree;
|
1530 |
begin
|
1531 |
TTree := TStTernaryTree.Create;
|
1532 |
with TTree do begin
|
1533 |
InsertStr('CONTENT-TYPE', Pointer(ctType));
|
1534 |
InsertStr('CONTENT-TRANSFER-ENCODING', Pointer(ctEncoding));
|
1535 |
InsertStr('CONTENT-DESCRIPTION', Pointer(ctDescription));
|
1536 |
InsertStr('CONTENT-DISPOSITION', Pointer(ctDisposition));
|
1537 |
end;
|
1538 |
end;
|
1539 |
|
1540 |
begin
|
1541 |
NewAtt := nil;
|
1542 |
TTree := nil;
|
1543 |
|
1544 |
DeleteAttachments;
|
1545 |
|
1546 |
{ Position stream to beginning }
|
1547 |
Stream.Seek(0, soFromBeginning);
|
1548 |
|
1549 |
{ Create memory stream for search }
|
1550 |
ScanStream := TMemoryStream.Create;
|
1551 |
try
|
1552 |
ScanStream.SetSize(StmSize);
|
1553 |
StmOffset := Stream.Position;
|
1554 |
ScanSize := ScanStream.CopyFrom(Stream, Min(StmSize,
|
1555 |
(Stream.Size - Stream.Position)));
|
1556 |
|
1557 |
{ If we have a boundary, use it -- if not, look for one }
|
1558 |
if FBoundary = '' then
|
1559 |
StrCopy(SearchString, #13#10'--')
|
1560 |
else begin
|
1561 |
FBoundaryUsed := True;
|
1562 |
StrPCopy(SearchString, '--' + Boundary);
|
1563 |
end;
|
1564 |
BMMakeTableZ(SearchString, BMT);
|
1565 |
ScanStream.Position := 0;
|
1566 |
|
1567 |
while True do begin
|
1568 |
{ Look for a Mime boundary -- process appropriately }
|
1569 |
if BMSearchZ(ScanStream.Memory^, ScanSize, BMT, SearchString, FoundPos) then begin
|
1570 |
|
1571 |
Pos := FoundPos + StrLen(SearchString);
|
1572 |
|
1573 |
{ Add add'l checks here -- look for the Boundary header entry first }
|
1574 |
{ if that method fails, beef up this method against false positives a bit }
|
1575 |
{ maybe checking for 'Content-' shortly following this potential boundary }
|
1576 |
|
1577 |
{ Do we have a boundary? If not, assume this might be it and collect }
|
1578 |
if FBoundary = '' then begin
|
1579 |
FillChar(TempBuf, SizeOf(TempBuf), #0);
|
1580 |
for I := 0 to (MaxMimeLine - 1) do begin
|
1581 |
if MemArray(ScanStream.Memory^)[Pos+I] = #13 then begin
|
1582 |
Pos := Pos+I;
|
1583 |
Break;
|
1584 |
end;
|
1585 |
TempBuf[I] := MemArray(ScanStream.Memory^)[Pos+I];
|
1586 |
end;
|
1587 |
Boundary := StrPas(TempBuf);
|
1588 |
StrCopy(StrECopy(SearchString, '--'), TempBuf);
|
1589 |
|
1590 |
{ Adjust to account for CR/LF searched on this go around }
|
1591 |
Inc(FoundPos, 2);
|
1592 |
|
1593 |
{ Get this out of the way for subsequent searches }
|
1594 |
BMMakeTableZ(SearchString, BMT);
|
1595 |
end;
|
1596 |
|
1597 |
if not Assigned(TTree) then InitTree;
|
1598 |
|
1599 |
{ Check to see if this was an 'ending' boundary }
|
1600 |
if (MemArray(ScanStream.Memory^)[Pos] = '-') and
|
1601 |
(MemArray(ScanStream.Memory^)[Pos+1] = '-') then begin
|
1602 |
{ Position the stream to the beginning of the end marker }
|
1603 |
FEndBoundaryOffset := (StmOffset + LongInt(FoundPos) - 2);
|
1604 |
Stream.Position := FEndBoundaryOffset;
|
1605 |
Exit;
|
1606 |
end else begin
|
1607 |
if not Assigned(NewAtt) then NewAtt := TStAttachment.Create;
|
1608 |
{ Go ahead and reposition here -- won't lose us much, and it }
|
1609 |
{ guarantees all tags for this attachment will be within the buffer }
|
1610 |
NewAtt.atStreamOffset := (StmOffset + LongInt(FoundPos));
|
1611 |
Stream.Position := (StmOffset + LongInt(FoundPos) + Length(FBoundary) + 2);
|
1612 |
StmOffset := Stream.Position;
|
1613 |
ScanStream.Position := 0;
|
1614 |
if Stream.Position >= Stream.Size then Exit;
|
1615 |
ScanSize := ScanStream.CopyFrom(Stream,
|
1616 |
Min(StmSize, (Stream.Size - Stream.Position)));
|
1617 |
end;
|
1618 |
|
1619 |
{ Init for token search }
|
1620 |
OStr := TStString.CreateZ(StrLCopy(TempBuf, ScanStream.Memory, SizeOf(TempBuf)-1));
|
1621 |
try
|
1622 |
with OStr do begin
|
1623 |
{ Check for another boundary in buffer }
|
1624 |
if not BMSearchUC(FBoundary, BoundPos) then
|
1625 |
BoundPos := SizeOf(TempBuf);
|
1626 |
Delimiters := ' :;='#13#10;
|
1627 |
Quote := '"';
|
1628 |
EnableCursor := True;
|
1629 |
RepeatValue := 10;
|
1630 |
BMSearchUC('Content-', FoundPos);
|
1631 |
RepeatValue := 1;
|
1632 |
end;
|
1633 |
|
1634 |
for I := 0 to OStr.Items.Count-1 do begin
|
1635 |
|
1636 |
OStr.CursorPos := Cardinal(OStr.Items.Objects[I]);
|
1637 |
|
1638 |
{ These tokens belong to the next section }
|
1639 |
if OStr.CursorPos > BoundPos then Break;
|
1640 |
|
1641 |
OStr.GetWordAtCursorZ(AttToken);
|
1642 |
|
1643 |
{ Process tag appropriately }
|
1644 |
if TTree.SearchUC(AttToken, TTag) then begin
|
1645 |
case TStContentTag(TTag) of
|
1646 |
ctType :
|
1647 |
begin
|
1648 |
OStr.CursorNextWord;
|
1649 |
NewAtt.atContentType := OStr.GetAsciiAtCursor;
|
1650 |
OStr.CursorNextWord;
|
1651 |
if CompareText(OStr.GetAsciiAtCursor, 'name') = 0 then begin
|
1652 |
OStr.Delimiters := ' :;="'#13#10;
|
1653 |
OStr.CursorNextWord;
|
1654 |
NewAtt.atFileName := OStr.GetWordAtCursor;
|
1655 |
OStr.Delimiters := ' :;='#13#10;
|
1656 |
end;
|
1657 |
end;
|
1658 |
ctEncoding :
|
1659 |
begin
|
1660 |
OStr.CursorNextWord;
|
1661 |
NewAtt.atEncoding := OStr.GetAsciiAtCursor;
|
1662 |
end;
|
1663 |
ctDescription :
|
1664 |
begin
|
1665 |
OStr.CursorNextWord;
|
1666 |
NewAtt.atContentDescription := OStr.GetAsciiAtCursor;
|
1667 |
end;
|
1668 |
ctDisposition :
|
1669 |
begin
|
1670 |
OStr.CursorNextWord;
|
1671 |
NewAtt.atContentDisposition := OStr.GetAsciiAtCursor;
|
1672 |
OStr.CursorNextWord;
|
1673 |
if CompareText(OStr.GetAsciiAtCursor, 'filename') = 0 then begin
|
1674 |
OStr.Delimiters := ' :;="'#13#10;
|
1675 |
OStr.CursorNextWord;
|
1676 |
NewAtt.atFileName := OStr.GetWordAtCursor;
|
1677 |
OStr.Delimiters := ' :;='#13#10;
|
1678 |
end;
|
1679 |
end;
|
1680 |
end;
|
1681 |
end;
|
1682 |
end;
|
1683 |
{ If it's an 'attachment' -- add it to the list }
|
1684 |
if CompareText(NewAtt.atContentDisposition, 'attachment') = 0 then begin
|
1685 |
if NewAtt.atFilename = '' then
|
1686 |
NewAtt.atFileName := 'attach' + IntToStr(FAttachments.Count) + '.att';
|
1687 |
Attachments.AddObject(NewAtt.atFileName, NewAtt);
|
1688 |
NewAtt := nil;
|
1689 |
end else if CompareText(NewAtt.atContentDisposition, 'inline') = 0 then begin
|
1690 |
if NewAtt.atFilename = '' then
|
1691 |
NewAtt.atFileName := 'attach' + IntToStr(FAttachments.Count) + '.att';
|
1692 |
Attachments.AddObject(NewAtt.atFileName, NewAtt);
|
1693 |
NewAtt := nil;
|
1694 |
end;
|
1695 |
finally
|
1696 |
OStr.Free;
|
1697 |
end;
|
1698 |
|
1699 |
end else begin
|
1700 |
if (ScanSize < StmSize) then Exit;
|
1701 |
Stream.Seek(-StrLen(SearchString), soFromCurrent);
|
1702 |
StmOffset := Stream.Position;
|
1703 |
ScanStream.Position := 0;
|
1704 |
ScanSize := ScanStream.CopyFrom(Stream,
|
1705 |
Min(StmSize, (Stream.Size - Stream.Position)));
|
1706 |
end;
|
1707 |
end;
|
1708 |
finally
|
1709 |
ScanStream.Free;
|
1710 |
NewAtt.Free;
|
1711 |
TTree.Free;
|
1712 |
if FAttachments.Count = 0 then FindOldAttachment;
|
1713 |
end;
|
1714 |
end;
|
1715 |
|
1716 |
procedure TStMimeConverter.SetBoundary(Value : string);
|
1717 |
begin
|
1718 |
if CompareStr(FBoundary, Value) <> 0 then begin
|
1719 |
FBoundary := Value;
|
1720 |
FBoundaryUsed := False;
|
1721 |
if Length(Value) > 74 then
|
1722 |
SetLength(FBoundary, 74);
|
1723 |
end;
|
1724 |
end;
|
1725 |
|
1726 |
procedure TStMimeConverter.SetConverter(Value : TStConvertStream);
|
1727 |
var
|
1728 |
NewConverter : TStConvertStream;
|
1729 |
begin
|
1730 |
NewConverter := nil;
|
1731 |
if Value <> nil then begin
|
1732 |
NewConverter := TStConverterClass(Value.ClassType).Create(Self);
|
1733 |
NewConverter.OnProgress := Progress;
|
1734 |
end;
|
1735 |
try
|
1736 |
FConverter.Free;
|
1737 |
FConverter := NewConverter;
|
1738 |
except
|
1739 |
NewConverter.Free;
|
1740 |
raise;
|
1741 |
end;
|
1742 |
end;
|
1743 |
|
1744 |
procedure TStMimeConverter.SetEncoding(Value : string);
|
1745 |
var
|
1746 |
I : Integer;
|
1747 |
begin
|
1748 |
if FEncoding <> Value then begin
|
1749 |
if Converters.Find(Value, I) then begin
|
1750 |
FEncoding := Value;
|
1751 |
ForceType(TCvtFormat(Converters.Objects[I]).ConverterClass);
|
1752 |
end else
|
1753 |
RaiseStError(EStMimeError, stscBadEncodeFmt);
|
1754 |
end;
|
1755 |
end;
|
1756 |
|
1757 |
procedure TStMimeConverter.SetStream(Value : TStream);
|
1758 |
begin
|
1759 |
{if FStream <> Value then begin}
|
1760 |
FStream := Value;
|
1761 |
if FBoundaryUsed then
|
1762 |
Boundary := '';
|
1763 |
ScanAttachments;
|
1764 |
{end;}
|
1765 |
end;
|
1766 |
|
1767 |
class procedure TStMimeConverter.UnRegisterConverterClass(AClass : TStConverterClass);
|
1768 |
begin
|
1769 |
if Assigned(Converters) then Converters.Remove(AClass);
|
1770 |
end;
|
1771 |
|
1772 |
initialization
|
1773 |
InitializeCriticalSection(CvtLock);
|
1774 |
|
1775 |
finalization
|
1776 |
Converters.Free;
|
1777 |
DeleteCriticalSection(CvtLock);
|
1778 |
end.
|