libsagui-docs/example_httpauth_8c-example.html

/*                         _

 *   ___  __ _  __ _ _   _(_)

 *  / __|/ _` |/ _` | | | | |

 *  \__ \ (_| | (_| | |_| | |

 *  |___/\__,_|\__, |\__,_|_|

 *             |___/

 *

 * Cross-platform library which helps to develop web servers or frameworks.

 *

 * Copyright (C) 2016-2019 Silvio Clecio <silvioprog@gmail.com>

 *

 * Sagui 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.

 *

 * Sagui 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 Sagui library; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

 */


#include <stdio.h>

#include <stdlib.h>

#include <stdint.h>

#include <string.h>

#include <sagui.h>


/* NOTE: Error checking has been omitted to make it clear. */


static bool strmatch(const char *s1, const char *s2) {

  if (!s1 || !s2)

    return false;

  return strcmp(s1, s2) == 0;

}


static bool auth_cb(__SG_UNUSED void *cls, struct sg_httpauth *auth,

                    __SG_UNUSED struct sg_httpreq *req,

                    __SG_UNUSED struct sg_httpres *res) {

  bool pass;

  sg_httpauth_set_realm(auth, "My realm");

  pass = strmatch(sg_httpauth_usr(auth), "abc") &&

         strmatch(sg_httpauth_pwd(auth), "123");

  if (!pass)

    sg_httpauth_deny(auth,

                     "<html><head><title>Denied</title></head><body><font "

                     "color=\"red\">Go away</font></body></html>",

                     "text/html; charset=utf-8");

  return pass;

}


static void err_cb(__SG_UNUSED void *cls, const char *err) {

  fprintf(stderr, "%s", err);

  fflush(stderr);

}


static void req_cb(__SG_UNUSED void *cls, __SG_UNUSED struct sg_httpreq *req,

                   struct sg_httpres *res) {

  sg_httpres_send(res,

                  "<html><head><title>Secret</title></head><body><font "

                  "color=\"green\">Secret page</font></body></html>",

                  "text/html; charset=utf-8", 200);

}


int main(int argc, const char *argv[]) {

  struct sg_httpsrv *srv;

  uint16_t port;

  if (argc != 2) {

    printf("%s <PORT>\n", argv[0]);

    return EXIT_FAILURE;

  }

  port = strtol(argv[1], NULL, 10);

  srv = sg_httpsrv_new2(auth_cb, req_cb, err_cb, NULL);

  if (!sg_httpsrv_listen(srv, port, false)) {

    sg_httpsrv_free(srv);

    return EXIT_FAILURE;

  }

  fprintf(stdout, "Server running at http://localhost:%d\n",

          sg_httpsrv_port(srv));

  fflush(stdout);

  getchar();

  sg_httpsrv_free(srv);

  return EXIT_SUCCESS;

}

sg_httpsrv_new2
struct sg_httpsrv * sg_httpsrv_new2(sg_httpauth_cb auth_cb, sg_httpreq_cb req_cb, sg_err_cb err_cb, void *cls) __attribute__((malloc))

sg_httpauth_usr
const char * sg_httpauth_usr(struct sg_httpauth *auth)

sg_httpauth_deny
int sg_httpauth_deny(struct sg_httpauth *auth, const char *reason, const char *content_type)

sg_httpauth_set_realm
int sg_httpauth_set_realm(struct sg_httpauth *auth, const char *realm)

sg_httpauth_pwd
const char * sg_httpauth_pwd(struct sg_httpauth *auth)

sg_httpsrv_free
void sg_httpsrv_free(struct sg_httpsrv *srv)

sg_httpres_send
#define sg_httpres_send(res, val, content_type, status)
Definition sagui.h:1032

sg_httpsrv_listen
bool sg_httpsrv_listen(struct sg_httpsrv *srv, uint16_t port, bool threaded)

sg_httpsrv_port
uint16_t sg_httpsrv_port(struct sg_httpsrv *srv)

sagui.h

sg_httpauth

sg_httpreq

sg_httpres

sg_httpsrv