libmicrohttpd demo

/* This file is part of libmicrohttpd Copyright (C) 2010 Christian Grothoff (and other contributing authors) This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** * @file digest_auth_example.c * @brief minimal example for how to use digest auth with libmicrohttpd * @author Amr Ali */ #include "platform.h" #include #include #define PAGE "libmicrohttpd demoAccess granted" #define DENIED "libmicrohttpd demoAccess denied" #define MY_OPAQUE_STR "11733b200778ce33060f31c9af70a870ba96ddd4" static int ahc_echo (void *cls, struct MHD_Connection *connection, const char *url, const char *method, const char *version, const char *upload_data, size_t *upload_data_size, void **ptr) { struct MHD_Response *response; char *username; const char *password = "testpass"; const char *realm = "test@example.com"; int ret; (void)cls; /* Unused. Silent compiler warning. */ (void)url; /* Unused. Silent compiler warning. */ (void)method; /* Unused. Silent compiler warning. */ (void)version; /* Unused. Silent compiler warning. */ (void)upload_data; /* Unused. Silent compiler warning. */ (void)upload_data_size; /* Unused. Silent compiler warning. */ (void)ptr; /* Unused. Silent compiler warning. */ username = MHD_digest_auth_get_username(connection); if (NULL == username) { response = MHD_create_response_from_buffer(strlen (DENIED), DENIED, MHD_RESPMEM_PERSISTENT); ret = MHD_queue_auth_fail_response(connection, realm, MY_OPAQUE_STR, response, MHD_NO); MHD_destroy_response(response); return ret; } ret = MHD_digest_auth_check(connection, realm, username, password, 300); MHD_free (username); if ( (ret == MHD_INVALID_NONCE) || (ret == MHD_NO) ) { response = MHD_create_response_from_buffer(strlen (DENIED), DENIED, MHD_RESPMEM_PERSISTENT); if (NULL == response) return MHD_NO; ret = MHD_queue_auth_fail_response(connection, realm, MY_OPAQUE_STR, response, (ret == MHD_INVALID_NONCE) ? MHD_YES : MHD_NO); MHD_destroy_response(response); return ret; } response = MHD_create_response_from_buffer(strlen(PAGE), PAGE, MHD_RESPMEM_PERSISTENT); ret = MHD_queue_response(connection, MHD_HTTP_OK, response); MHD_destroy_response(response); return ret; } int main (int argc, char *const *argv) { int fd; char rnd[8]; ssize_t len; size_t off; struct MHD_Daemon *d; if (argc != 2) { printf ("%s PORT\n", argv[0]); return 1; } fd = open("/dev/urandom", O_RDONLY); if (-1 == fd) { fprintf (stderr, "Failed to open `%s': %s\n", "/dev/urandom", strerror (errno)); return 1; } off = 0; while (off < 8) { len = read(fd, rnd, 8); if (len == -1) { fprintf (stderr, "Failed to read `%s': %s\n", "/dev/urandom", strerror (errno)); (void) close (fd); return 1; } off += len; } (void) close(fd); d = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION | MHD_USE_INTERNAL_POLLING_THREAD | MHD_USE_ERROR_LOG, atoi (argv[1]), NULL, NULL, &ahc_echo, PAGE, MHD_OPTION_DIGEST_AUTH_RANDOM, sizeof(rnd), rnd, MHD_OPTION_NONCE_NC_SIZE, 300, MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 120, MHD_OPTION_END); if (d == NULL) return 1; (void) getc (stdin); MHD_stop_daemon (d); return 0; } /* end of digest_auth_example.c */