/*
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 <microhttpd.h>
#include <stdlib.h>
#define PAGE "<html><head><title>libmicrohttpd demo</title></head><body>Access granted</body></html>"
#define DENIED "<html><head><title>libmicrohttpd demo</title></head><body>Access denied</body></html>"
#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 */