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lightning-sunbird  0.9+nobinonly
nsStreamConverter.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00004  *
00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *   Brodie Thiesfield <brofield@jellycan.com>
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either of the GNU General Public License Version 2 or later (the "GPL"),
00027  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
00029  * of those above. If you wish to allow use of your version of this file only
00030  * under the terms of either the GPL or the LGPL, and not to allow others to
00031  * use your version of this file under the terms of the MPL, indicate your
00032  * decision by deleting the provisions above and replace them with the notice
00033  * and other provisions required by the GPL or the LGPL. If you do not delete
00034  * the provisions above, a recipient may use your version of this file under
00035  * the terms of any one of the MPL, the GPL or the LGPL.
00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 #ifndef nsStreamConverter_h_
00039 #define nsStreamConverter_h_
00040 
00041 #include "nsIStreamConverter.h" 
00042 #include "nsIMimeStreamConverter.h"
00043 #include "nsIOutputStream.h"
00044 #include "nsIMimeEmitter.h" 
00045 #include "nsIURI.h"
00046 #include "nsIInputStream.h"
00047 #include "nsIOutputStream.h"
00048 #include "nsIChannel.h"
00049 #include "nsString.h"
00050 #include "nsCOMPtr.h"
00051 
00052 #define NS_STREAM_CONVERTER_SEGMENT_SIZE   (4*1024)
00053 #define NS_STREAM_CONVERTER_BUFFER_SIZE    (32*1024)
00054 
00055 class nsStreamConverter : public nsIStreamConverter, public nsIMimeStreamConverter { 
00056 public: 
00057   nsStreamConverter();
00058   virtual ~nsStreamConverter();
00059 
00060   NS_DECL_ISUPPORTS 
00061 
00062   // nsIMimeStreamConverter support
00063   NS_DECL_NSIMIMESTREAMCONVERTER
00064   // nsIStreamConverter methods
00065   NS_DECL_NSISTREAMCONVERTER
00066   // nsIStreamListener methods
00067   NS_DECL_NSISTREAMLISTENER
00068 
00069   // nsIRequestObserver methods
00070   NS_DECL_NSIREQUESTOBSERVER
00071 
00073   // nsStreamConverter specific methods:
00075   NS_IMETHOD Init(nsIURI *aURI, nsIStreamListener * aOutListener, nsIChannel *aChannel);
00076   NS_IMETHOD GetContentType(char **aOutputContentType);
00077   NS_IMETHOD InternalCleanup(void);
00078   NS_IMETHOD DetermineOutputFormat(const char *url, nsMimeOutputType *newType);
00079   NS_IMETHOD FirePendingStartRequest(void);
00080 
00081 private:
00082   nsresult Close();
00083 
00084   // the input and output streams form a pipe...they need to be passed around together..
00085   nsCOMPtr<nsIOutputStream>     mOutputStream;     // output stream
00086   nsCOMPtr<nsIInputStream>      mInputStream;
00087 
00088   nsCOMPtr<nsIStreamListener>   mOutListener;   // output stream listener
00089   nsCOMPtr<nsIChannel>          mOutgoingChannel;
00090 
00091   nsCOMPtr<nsIMimeEmitter>      mEmitter;         // emitter being used...
00092   nsCOMPtr<nsIURI>              mURI;             // URI being processed
00093   nsMimeOutputType              mOutputType;      // the output type we should use for the operation
00094   PRBool                        mAlreadyKnowOutputType;
00095 
00096   void                          *mBridgeStream;   // internal libmime data stream
00097 
00098   // Type of output, entire message, header only, body only
00099   nsCString                     mOutputFormat;
00100   nsCString                     mRealContentType; // if we know the content type for real, this will be set (used by attachments)
00101 
00102   nsCString                     mOverrideFormat;  // this is a possible override for emitter creation
00103   PRBool                        mWrapperOutput;   // Should we output the frame split message display 
00104 
00105   nsCOMPtr<nsIMimeStreamConverterListener>  mMimeStreamConverterListener;
00106   PRBool                        mForwardInline;
00107   nsCOMPtr<nsIMsgIdentity>      mIdentity;
00108   nsCString                     mOriginalMsgURI;
00109 
00110   nsCString                     mFromType;
00111   nsCString                     mToType;
00112 #ifdef DEBUG_mscott  
00113   PRTime mConvertContentTime;
00114 #endif
00115   nsIRequest *                  mPendingRequest;  // used when we need to delay to fire onStartRequest
00116   nsISupports *                 mPendingContext;  // used when we need to delay to fire onStartRequest
00117 }; 
00118 
00119 #endif /* nsStreamConverter_h_ */