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nsGopherDirListingConv.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*-
00002  *
00003  * ***** BEGIN LICENSE BLOCK *****
00004  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00005  *
00006  * The contents of this file are subject to the Mozilla Public License Version
00007  * 1.1 (the "License"); you may not use this file except in compliance with
00008  * the License. You may obtain a copy of the License at
00009  * http://www.mozilla.org/MPL/
00010  *
00011  * Software distributed under the License is distributed on an "AS IS" basis,
00012  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00013  * for the specific language governing rights and limitations under the
00014  * License.
00015  *
00016  * The Original Code is the gopher-directory to http-index code.
00017  *
00018  * The Initial Developer of the Original Code is
00019  * Bradley Baetz.
00020  * Portions created by the Initial Developer are Copyright (C) 2000
00021  * the Initial Developer. All Rights Reserved.
00022  *
00023  * Contributor(s):
00024  *   Bradley Baetz <bbaetz@student.usyd.edu.au>
00025  *
00026  * Alternatively, the contents of this file may be used under the terms of
00027  * either the GNU General Public License Version 2 or later (the "GPL"), or
00028  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00029  * in which case the provisions of the GPL or the LGPL are applicable instead
00030  * of those above. If you wish to allow use of your version of this file only
00031  * under the terms of either the GPL or the LGPL, and not to allow others to
00032  * use your version of this file under the terms of the MPL, indicate your
00033  * decision by deleting the provisions above and replace them with the notice
00034  * and other provisions required by the GPL or the LGPL. If you do not delete
00035  * the provisions above, a recipient may use your version of this file under
00036  * the terms of any one of the MPL, the GPL or the LGPL.
00037  *
00038  * ***** END LICENSE BLOCK ***** */
00039 
00040 /* This code is heavily based on nsFTPDirListingConv.{cpp,h} */
00041 
00042 #ifndef __nsgopherdirlistingconv__h__
00043 #define __nsgopherdirlistingconv__h__
00044 
00045 #include "nspr.h"
00046 #include "prtypes.h"
00047 #include "nsIStreamConverter.h"
00048 #include "nsIChannel.h"
00049 #include "nsString.h"
00050 #include "nsIChannel.h"
00051 #include "nsCOMPtr.h"
00052 #include "nsIURI.h"
00053 
00054 #include "nsIFactory.h"
00055 
00056 #define NS_GOPHERDIRLISTINGCONVERTER_CID \
00057  { /* ea617873-3b73-4efd-a2c4-fc39bfab809d */ \
00058     0xea617873, \
00059     0x3b73, \
00060     0x4efd, \
00061     { 0xa2, 0xc4, 0xfc, 0x39, 0xbf, 0xab, 0x80, 0x9d} \
00062 }
00063 
00064 #define GOPHER_PORT 70
00065  
00066 class nsGopherDirListingConv : public nsIStreamConverter {
00067 public:
00068     // nsISupports methods
00069     NS_DECL_ISUPPORTS
00070 
00071     // nsIStreamConverter methods
00072     NS_DECL_NSISTREAMCONVERTER
00073 
00074     // nsIStreamListener methods
00075     NS_DECL_NSISTREAMLISTENER
00076 
00077     // nsIRequestObserver methods
00078     NS_DECL_NSIREQUESTOBSERVER
00079 
00080     nsGopherDirListingConv();
00081     virtual ~nsGopherDirListingConv();
00082     nsresult Init();
00083 
00084     // For factory creation.
00085     static NS_METHOD
00086     Create(nsISupports *aOuter, REFNSIID aIID, void **aResult) {
00087         nsresult rv;
00088         if (aOuter)
00089             return NS_ERROR_NO_AGGREGATION;
00090 
00091         nsGopherDirListingConv* _s = new nsGopherDirListingConv();
00092         if (!_s)
00093             return NS_ERROR_OUT_OF_MEMORY;
00094         NS_ADDREF(_s);
00095         rv = _s->Init();
00096         if (NS_FAILED(rv)) {
00097             delete _s;
00098             return rv;
00099         }
00100         rv = _s->QueryInterface(aIID, aResult);
00101         NS_RELEASE(_s);
00102         return rv;
00103     }
00104 
00105 private:
00106     char* DigestBufferLines(char *aBuffer, nsCAutoString& aString);
00107 
00108     nsCOMPtr<nsIURI>    mUri;
00109 
00110     nsCAutoString       mBuffer;            // buffered data.
00111     PRBool              mSentHeading;
00112     nsIStreamListener   *mFinalListener; // this guy gets the converted data via his OnDataAvailable()
00113     nsIChannel          *mPartChannel;  // the channel for the given part we're processing.
00114 };  
00115 
00116 #endif /* __nsgopherdirlistingdconv__h__ */