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      1 /*
      2      This file is part of libmicrohttpd
      3      Copyright (C) 2008 Christian Grothoff (and other contributing authors)
      4 
      5      This library is free software; you can redistribute it and/or
      6      modify it under the terms of the GNU Lesser General Public
      7      License as published by the Free Software Foundation; either
      8      version 2.1 of the License, or (at your option) any later version.
      9 
     10      This library is distributed in the hope that it will be useful,
     11      but WITHOUT ANY WARRANTY; without even the implied warranty of
     12      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13      Lesser General Public License for more details.
     14 
     15      You should have received a copy of the GNU Lesser General Public
     16      License along with this library; if not, write to the Free Software
     17      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
     18 */
     19 
     20 /**
     21  * @file authorization_example.c
     22  * @brief example for how to use libmicrohttpd with HTTP authentication
     23  * @author Christian Grothoff
     24  */
     25 
     26 #include "platform.h"
     27 #include <microhttpd.h>
     28 #ifdef _WIN32
     29 #ifndef WIN32_LEAN_AND_MEAN
     30 #define WIN32_LEAN_AND_MEAN 1
     31 #endif /* !WIN32_LEAN_AND_MEAN */
     32 #include <windows.h>
     33 #endif
     34 
     35 #define PAGE "<html><head><title>libmicrohttpd demo</title></head><body>libmicrohttpd demo</body></html>"
     36 
     37 #define DENIED "<html><head><title>Access denied</title></head><body>Access denied</body></html>"
     38 
     39 
     40 
     41 static int
     42 ahc_echo (void *cls,
     43           struct MHD_Connection *connection,
     44           const char *url,
     45           const char *method,
     46           const char *version,
     47           const char *upload_data, size_t *upload_data_size, void **ptr)
     48 {
     49   static int aptr;
     50   const char *me = cls;
     51   struct MHD_Response *response;
     52   int ret;
     53   char *user;
     54   char *pass;
     55   int fail;
     56 
     57   if (0 != strcmp (method, "GET"))
     58     return MHD_NO;              /* unexpected method */
     59   if (&aptr != *ptr)
     60     {
     61       /* do never respond on first call */
     62       *ptr = &aptr;
     63       return MHD_YES;
     64     }
     65   *ptr = NULL;                  /* reset when done */
     66 
     67   /* require: "Aladdin" with password "open sesame" */
     68   pass = NULL;
     69   user = MHD_basic_auth_get_username_password (connection, &pass);
     70   fail = ( (user == NULL) || (0 != strcmp (user, "Aladdin")) || (0 != strcmp (pass, "open sesame") ) );
     71   if (fail)
     72   {
     73       response = MHD_create_response_from_buffer (strlen (DENIED),
     74 						  (void *) DENIED,
     75 						  MHD_RESPMEM_PERSISTENT);
     76       ret = MHD_queue_basic_auth_fail_response (connection,"TestRealm",response);
     77     }
     78   else
     79     {
     80       response = MHD_create_response_from_buffer (strlen (me),
     81 						  (void *) me,
     82 						  MHD_RESPMEM_PERSISTENT);
     83       ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
     84     }
     85 
     86   MHD_destroy_response (response);
     87   return ret;
     88 }
     89 
     90 int
     91 main (int argc, char *const *argv)
     92 {
     93   struct MHD_Daemon *d;
     94 
     95   if (argc != 3)
     96     {
     97       printf ("%s PORT SECONDS-TO-RUN\n", argv[0]);
     98       return 1;
     99     }
    100   d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION | MHD_USE_DEBUG,
    101                         atoi (argv[1]),
    102                         NULL, NULL, &ahc_echo, PAGE, MHD_OPTION_END);
    103   if (d == NULL)
    104     return 1;
    105   sleep (atoi (argv[2]));
    106   MHD_stop_daemon (d);
    107   return 0;
    108 }
    109