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nsHTTPConn.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 Communicator client code, released
00016  * March 31, 1998.
00017  *
00018  * The Initial Developer of the Original Code is
00019  * Netscape Communications Corporation.
00020  * Portions created by the Initial Developer are Copyright (C) 1998
00021  * the Initial Developer. All Rights Reserved.
00022  *
00023  * Contributor(s):
00024  *   Samir Gehani <sgehani@netscape.com>
00025  *
00026  * Alternatively, the contents of this file may be used under the terms of
00027  * either of the GNU General Public License Version 2 or later (the "GPL"),
00028  * or 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 #ifndef _NS_HTTPCONN_H_
00041 #define _NS_HTTPCONN_H_
00042 
00043 class nsSocket;  
00044 
00045 typedef int (*HTTPGetCB)(int aBytesRd, int aTotal);
00046 
00047 class nsHTTPConn
00048 {
00049 public:
00050     nsHTTPConn(char *aHost, int aPort, char *aPath);
00051     nsHTTPConn(char *aURL);
00052     nsHTTPConn(char *aHost, int aPort, char *aPath, int (*aEventPumpCB)(void));
00053     nsHTTPConn(char *aURL, int (*aEventPumpCB)(void));
00054     ~nsHTTPConn();
00055 
00056     int Open();
00057     int ResumeOrGet(HTTPGetCB aCallback, char *aDestFile);
00058     int Get(HTTPGetCB aCallback, char *aDestFile);
00059     int Get(HTTPGetCB aCallback, char *aDestFile, int aResumePos);
00060     int GetResponseCode() { return mResponseCode; }
00061     int Close();
00062 
00063     void SetProxyInfo(char *aProxiedURL, char *aProxyUser, 
00064                                          char *aProxyPswd);
00065     static int ParseURL(const char *aProto, char *aURL, char **aHost, 
00066                         int *aPort, char **aPath);
00067 
00068     enum 
00069     {
00070         OK                  = 0,
00071         E_MEM               = -801,
00072         E_PARAM             = -802,
00073         E_MALFORMED_URL     = -803,
00074         E_REQ_INCOMPLETE    = -804,
00075         E_B64_ENCODE        = -805,
00076         E_OPEN_FILE         = -806,
00077         E_SEEK_FILE         = -807,
00078         E_HTTP_RESPONSE     = -808,
00079         E_USER_CANCEL       = -813
00080     };
00081 
00082 private:
00083     int Request(int aResumePos);
00084     int Response(HTTPGetCB aCallback, char *aDestFile, int aResumePos);
00085     void ParseContentLength(const char *aBuf, int *aLength);
00086     void ParseResponseCode(const char *aBuf, int *aCode);
00087     int Base64Encode(const unsigned char *in_str, int in_len,
00088                      char *out_str, int out_len);
00089 
00090     int (*mEventPumpCB)(void);
00091     char *mHost;
00092     char *mPath;
00093     int   mPort;
00094     char *mProxiedURL;
00095     char *mProxyUser;
00096     char *mProxyPswd;
00097     char *mDestFile;
00098     int   mHostPathAllocd;
00099     nsSocket *mSocket;
00100     int   mResponseCode;
00101 };
00102     
00103 #ifndef NULL
00104 #define NULL 0
00105 #endif
00106 
00107 #ifndef TRUE
00108 #define TRUE 1
00109 #endif
00110 
00111 #ifndef FALSE
00112 #define FALSE 0
00113 #endif
00114 
00115 #ifdef DUMP
00116 #undef DUMP
00117 #endif
00118 #if defined(DEBUG_sgehani) || defined(DEBUG)
00119 #define DUMP(_vargs)                        \
00120 do {                                        \
00121     printf("%s %d: ", __FILE__, __LINE__);  \
00122     printf _vargs;                          \
00123 } while(0);
00124 #else
00125 #define DUMP(_vargs) 
00126 #endif 
00127 
00128 #endif /* _NS_HTTPCONN_H_ */