2 This file is part of GNUnet
3 (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file transport/plugin_transport_http.c
23 * @brief http transport service plugin
24 * @author Matthias Wachs
27 #include "plugin_transport_http.h"
29 #define HTTP_ERROR_RESPONSE "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\"><HTML><HEAD><TITLE>404 Not Found</TITLE></HEAD><BODY><H1>Not Found</H1>The requested URL was not found on this server.<P><HR><ADDRESS></ADDRESS></BODY></HTML>"
33 struct ServerConnection
38 /* should this connection get disconnected? GNUNET_YES/NO */
41 struct Session *session;
42 struct MHD_Connection * mhd_conn;
46 * Function that queries MHD's select sets and
47 * starts the task waiting for them.
48 * @param plugin plugin
49 * @param daemon_handle the MHD daemon handle
50 * @return gnunet task identifier
52 static GNUNET_SCHEDULER_TaskIdentifier
53 server_schedule (struct Plugin *plugin, struct MHD_Daemon *daemon_handle, int now);
56 server_log (void *arg, const char *fmt, va_list ap)
60 vsnprintf (text, sizeof (text), fmt, ap);
62 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Server: %s\n", text);
66 * Check if incoming connection is accepted.
67 * NOTE: Here every connection is accepted
68 * @param cls plugin as closure
69 * @param addr address of incoming connection
70 * @param addr_len address length of incoming connection
71 * @return MHD_YES if connection is accepted, MHD_NO if connection is rejected
75 server_accept_cb (void *cls, const struct sockaddr *addr, socklen_t addr_len)
77 struct Plugin * plugin = cls;
79 if (plugin->cur_connections <= plugin->max_connections)
83 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Server: Cannot accept new connections\n");
91 server_load_file (const char *file)
93 struct GNUNET_DISK_FileHandle *gn_file;
97 if (0 != STAT (file, &fstat))
99 text = GNUNET_malloc (fstat.st_size + 1);
101 GNUNET_DISK_file_open (file, GNUNET_DISK_OPEN_READ,
102 GNUNET_DISK_PERM_USER_READ);
108 if (GNUNET_SYSERR == GNUNET_DISK_file_read (gn_file, text, fstat.st_size))
111 GNUNET_DISK_file_close (gn_file);
114 text[fstat.st_size] = '\0';
115 GNUNET_DISK_file_close (gn_file);
124 server_load_certificate (struct Plugin *plugin)
131 /* Get crypto init string from config
132 * If not present just use default values */
133 GNUNET_CONFIGURATION_get_value_string (plugin->env->cfg, plugin->name,
134 "CRYPTO_INIT", &plugin->crypto_init);
137 GNUNET_CONFIGURATION_get_value_filename (plugin->env->cfg, plugin->name,
138 "KEY_FILE", &key_file))
140 key_file = "https_key.key";
144 GNUNET_CONFIGURATION_get_value_filename (plugin->env->cfg, plugin->name,
145 "CERT_FILE", &cert_file))
147 cert_file = "https_cert.crt";
150 /* read key & certificates from file */
152 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
153 "Loading TLS certificate from key-file `%s' cert-file`%s'\n",
154 key_file, cert_file);
157 plugin->key = server_load_file (key_file);
158 plugin->cert = server_load_file (cert_file);
160 if ((plugin->key == NULL) || (plugin->cert == NULL))
162 struct GNUNET_OS_Process *cert_creation;
164 GNUNET_free_non_null (plugin->key);
166 GNUNET_free_non_null (plugin->cert);
170 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
171 "No usable TLS certificate found, creating certificate\n");
175 GNUNET_OS_start_process (NULL, NULL,
176 "gnunet-transport-certificate-creation",
177 "gnunet-transport-certificate-creation",
178 key_file, cert_file, NULL);
179 if (cert_creation == NULL)
181 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
183 ("Could not create a new TLS certificate, program `gnunet-transport-certificate-creation' could not be started!\n"));
184 GNUNET_free (key_file);
185 GNUNET_free (cert_file);
187 GNUNET_free_non_null (plugin->key);
188 GNUNET_free_non_null (plugin->cert);
189 GNUNET_free_non_null (plugin->crypto_init);
191 return GNUNET_SYSERR;
193 GNUNET_assert (GNUNET_OK == GNUNET_OS_process_wait (cert_creation));
194 GNUNET_OS_process_close (cert_creation);
196 plugin->key = server_load_file (key_file);
197 plugin->cert = server_load_file (cert_file);
200 if ((plugin->key == NULL) || (plugin->cert == NULL))
202 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
204 ("No usable TLS certificate found and creating one failed!\n"),
206 GNUNET_free (key_file);
207 GNUNET_free (cert_file);
209 GNUNET_free_non_null (plugin->key);
210 GNUNET_free_non_null (plugin->cert);
211 GNUNET_free_non_null (plugin->crypto_init);
213 return GNUNET_SYSERR;
215 GNUNET_free (key_file);
216 GNUNET_free (cert_file);
218 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "TLS certificate loaded\n");
226 * Reschedule the execution of both IPv4 and IPv6 server
227 * @param plugin the plugin
228 * @param now GNUNET_YES to schedule execution immediately, GNUNET_NO to wait
233 server_reschedule (struct Plugin *plugin, int now)
235 if (plugin->server_v4 != NULL)
237 if (plugin->server_v4_task != GNUNET_SCHEDULER_NO_TASK)
239 GNUNET_SCHEDULER_cancel(plugin->server_v4_task);
240 plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK;
242 plugin->server_v4_task = server_schedule (plugin, plugin->server_v4, now);
245 if (plugin->server_v6 != NULL)
247 if (plugin->server_v6_task != GNUNET_SCHEDULER_NO_TASK)
249 GNUNET_SCHEDULER_cancel(plugin->server_v6_task);
250 plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK;
252 plugin->server_v6_task = server_schedule (plugin, plugin->server_v6, now);
257 * Callback called by MessageStreamTokenizer when a message has arrived
258 * @param cls current session as closure
259 * @param client clien
260 * @param message the message to be forwarded to transport service
263 server_receive_mst_cb (void *cls, void *client,
264 const struct GNUNET_MessageHeader *message)
266 struct Session *s = cls;
268 struct Plugin *plugin = s->plugin;
270 struct GNUNET_TIME_Relative delay;
272 delay = http_plugin_receive (s, &s->target, message, s, s->addr, s->addrlen);
274 s->next_receive = GNUNET_TIME_absolute_add(GNUNET_TIME_absolute_get(), delay);
276 if (delay.rel_value > 0)
279 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, "Server: peer `%s' address `%s' next read delayed for %llu ms\n",
280 GNUNET_i2s (&s->target), GNUNET_a2s (s->addr, s->addrlen), delay);
286 * Callback called by MHD when it needs data to send
287 * @param cls current session
288 * @param pos position in buffer
289 * @param buf the buffer to write data to
290 * @param max max number of bytes available in buffer
291 * @return bytes written to buffer
294 server_send_callback (void *cls, uint64_t pos, char *buf, size_t max)
296 struct Session *s = cls;
298 struct HTTP_Message *msg;
305 if ((msg->size - msg->pos) <= max)
307 memcpy (buf, &msg->buf[msg->pos], (msg->size - msg->pos));
308 bytes_read = msg->size - msg->pos;
309 msg->pos += (msg->size - msg->pos);
313 memcpy (buf, &msg->buf[msg->pos], max);
318 /* removing message */
319 if (msg->pos == msg->size)
321 if (NULL != msg->transmit_cont)
322 msg->transmit_cont (msg->transmit_cont_cls, &s->target, GNUNET_OK);
323 GNUNET_CONTAINER_DLL_remove(s->msg_head, s->msg_tail, msg);
329 struct Plugin *plugin = s->plugin;
330 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
331 "Server: %X: sent %u bytes\n",
337 static struct ServerConnection *
338 server_lookup_session (struct Plugin *plugin,
339 struct MHD_Connection *mhd_connection,
343 struct Session *s = NULL;
345 struct ServerConnection *sc = NULL;
346 const union MHD_ConnectionInfo *conn_info;
348 struct GNUNET_PeerIdentity target;
350 int check = GNUNET_NO;
354 conn_info = MHD_get_connection_info (mhd_connection, MHD_CONNECTION_INFO_CLIENT_ADDRESS);
355 if (conn_info->client_addr->sa_family == AF_INET)
356 addrlen = sizeof (struct sockaddr_in);
357 else if (conn_info->client_addr->sa_family == AF_INET6)
358 addrlen = sizeof (struct sockaddr_in6);
362 if ((strlen(&url[1]) >= 105) && (url[104] == ';'))
365 char * tagc = (char *) &url[105];
366 memcpy(&hash, &url[1], 103);
368 if (GNUNET_OK == GNUNET_CRYPTO_hash_from_string ((const char *) &hash,
369 &(target.hashPubKey)))
371 tag = strtoul (tagc, NULL, 10);
377 if (0 == strcmp (MHD_HTTP_METHOD_PUT, method))
378 direction = _RECEIVE;
379 if (0 == strcmp (MHD_HTTP_METHOD_GET, method))
382 if (check == GNUNET_NO)
385 plugin->cur_connections++;
388 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
389 "Server: New inbound connection from %s with tag %u\n", GNUNET_i2s(&target), tag);
391 /* find duplicate session */
397 if ((t->inbound) && (0 == memcmp (&t->target, &target, sizeof (struct GNUNET_PeerIdentity))) &&
398 /* FIXME add source address comparison */
406 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
407 "Server: Duplicate session, dismissing new connection from peer `%s'\n", GNUNET_i2s (&target));
412 /* find semi-session */
413 t = plugin->server_semi_head;
417 /* FIXME add source address comparison */
418 if ((0 == memcmp (&t->target, &target, sizeof (struct GNUNET_PeerIdentity))) &&
430 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
431 "Server: Found existing semi-session for `%s'\n", GNUNET_i2s (&target));
434 if ((direction == _SEND) && (t->server_send != NULL))
437 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
438 "Server: Duplicate GET session, dismissing new connection from peer `%s'\n", GNUNET_i2s (&target));
445 GNUNET_CONTAINER_DLL_remove(plugin->server_semi_head, plugin->server_semi_tail, s);
446 GNUNET_CONTAINER_DLL_insert(plugin->head, plugin->tail, s);
448 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
449 "Server: Found matching semi-session, merging session for peer `%s'\n", GNUNET_i2s (&target));
454 if ((direction == _RECEIVE) && (t->server_recv != NULL))
457 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
458 "Server: Duplicate PUT session, dismissing new connection from peer `%s'\n", GNUNET_i2s (&target));
465 GNUNET_CONTAINER_DLL_remove(plugin->server_semi_head, plugin->server_semi_tail, s);
466 GNUNET_CONTAINER_DLL_insert(plugin->head, plugin->tail, s);
468 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
469 "Server: Found matching semi-session, merging session for peer `%s'\n", GNUNET_i2s (&target));
475 /* create new session */
477 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
478 "Server: Creating new session for peer `%s' \n", GNUNET_i2s (&target));
481 s = create_session (plugin,
483 conn_info->client_addr,
488 s->inbound = GNUNET_YES;
489 s->next_receive = GNUNET_TIME_absolute_get_zero();
491 if (0 == strcmp (MHD_HTTP_METHOD_PUT, method))
493 if (0 == strcmp (MHD_HTTP_METHOD_GET, method))
495 GNUNET_CONTAINER_DLL_insert (plugin->server_semi_head, plugin->server_semi_tail, s);
500 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
501 "Server: Invalid connection request\n");
506 sc = GNUNET_malloc (sizeof (struct ServerConnection));
507 sc->mhd_conn = mhd_connection;
508 sc->direction = direction;
510 if (direction == _SEND)
512 if (direction == _RECEIVE)
515 #if MHD_VERSION >= 0x00090E00
516 int to = (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value / 1000);
519 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
520 "Server: Setting timeout for %X to %u sec.\n", sc, to);
522 MHD_set_connection_option (mhd_connection, MHD_CONNECTION_OPTION_TIMEOUT, to);
523 server_reschedule (plugin, GNUNET_NO);
531 * Process GET or PUT request received via MHD. For
532 * GET, queue response that will send back our pending
533 * messages. For PUT, process incoming data and send
534 * to GNUnet core. In either case, check if a session
535 * already exists and create a new one if not.
538 server_access_cb (void *cls, struct MHD_Connection *mhd_connection,
539 const char *url, const char *method, const char *version,
540 const char *upload_data, size_t * upload_data_size,
541 void **httpSessionCache)
544 struct Plugin *plugin = cls;
545 struct ServerConnection *sc = *httpSessionCache;
546 struct Session *s = NULL;
549 struct MHD_Response *response;
551 GNUNET_assert (cls != NULL);
555 sc = server_lookup_session(plugin, mhd_connection, url, method);
557 (*httpSessionCache) = sc;
560 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
561 res = MHD_queue_response (mhd_connection, MHD_HTTP_NOT_FOUND, response);
562 MHD_destroy_response (response);
568 /* existing connection */
569 sc = (*httpSessionCache);
572 /* connection is to be disconnected*/
573 if (sc->disconnect == GNUNET_YES)
575 response = MHD_create_response_from_data (strlen ("Thank you!"), "Thank you!", MHD_NO, MHD_NO);
576 res = MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
578 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
579 "Sent HTTP/1.1: 200 OK as PUT Response\n");
581 MHD_destroy_response (response);
585 GNUNET_assert (s != NULL);
586 if (sc->direction == _SEND)
588 response = MHD_create_response_from_callback (-1, 32 * 1024, &server_send_callback,
590 res = MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
591 MHD_destroy_response (response);
594 if (sc->direction == _RECEIVE)
596 if (*upload_data_size == 0)
599 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
600 "Server: Peer `%s' PUT on address `%s' connected\n",
601 GNUNET_i2s (&s->target), GNUNET_a2s (s->addr, s->addrlen));
607 if ((*upload_data_size > 0))
610 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
611 "Server: peer `%s' PUT on address `%s' received %Zu bytes\n",
612 GNUNET_i2s (&s->target), GNUNET_a2s (s->addr, s->addrlen), *upload_data_size);
614 struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get();
615 if (( s->next_receive.abs_value <= now.abs_value))
618 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
619 "Server: %X: PUT with %u bytes forwarded to MST\n", s,
622 if (s->msg_tk == NULL)
624 s->msg_tk = GNUNET_SERVER_mst_create (&server_receive_mst_cb, s);
626 res = GNUNET_SERVER_mst_receive (s->msg_tk, s, upload_data, *upload_data_size, GNUNET_NO, GNUNET_NO);
628 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
629 "Server: Received %Zu bytes\n", *upload_data_size);
631 (*upload_data_size) = 0;
636 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
637 "Server: %X no inbound bandwidth available! Next read was delayed by %llu ms\n", s, now.abs_value - s->next_receive.abs_value);
649 server_disconnect_cb (void *cls, struct MHD_Connection *connection,
650 void **httpSessionCache)
652 struct ServerConnection *sc = *httpSessionCache;
653 struct ServerConnection *tc = *httpSessionCache;
654 struct Session * s = NULL;
655 struct Session * t = NULL;
656 struct Plugin * plugin = NULL;
663 if (sc->direction == _SEND)
666 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
667 "Server: %X peer `%s' GET on address `%s' disconnected\n",
669 GNUNET_i2s (&s->target), GNUNET_a2s (s->addr, s->addrlen));
671 s->server_send = NULL;
673 if (s->server_recv != NULL)
676 tc->disconnect = GNUNET_YES;
677 #if MHD_VERSION >= 0x00090E00
678 MHD_set_connection_option (sc->mhd_conn, MHD_CONNECTION_OPTION_TIMEOUT, 1);
682 if (sc->direction == _RECEIVE)
685 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
686 "Server: %X peer `%s' PUT on address `%s' disconnected\n",
688 GNUNET_i2s (&s->target), GNUNET_a2s (s->addr, s->addrlen));
690 s->server_recv = NULL;
691 if (s->server_send != NULL)
694 tc->disconnect = GNUNET_YES;
695 #if MHD_VERSION >= 0x00090E00
696 MHD_set_connection_option (sc->mhd_conn, MHD_CONNECTION_OPTION_TIMEOUT, 1);
699 if (s->msg_tk != NULL)
701 GNUNET_SERVER_mst_destroy(s->msg_tk);
707 t = plugin->server_semi_head;
712 GNUNET_CONTAINER_DLL_remove(plugin->server_semi_head, plugin->server_semi_tail, s);
713 GNUNET_CONTAINER_DLL_insert(plugin->head, plugin->tail, s);
718 plugin->cur_connections--;
720 server_reschedule (plugin, GNUNET_NO);
722 if ((s->server_send == NULL) && (s->server_recv == NULL))
725 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
726 "Server: peer `%s' on address `%s' disconnected\n",
727 GNUNET_i2s (&s->target), GNUNET_a2s (s->addr, s->addrlen));
729 if (s->msg_tk != NULL)
731 GNUNET_SERVER_mst_destroy(s->msg_tk);
735 notify_session_end(s->plugin, &s->target, s);
740 server_disconnect (struct Session *s)
742 struct Plugin *plugin = s->plugin;
743 struct Session *t = plugin->head;
747 if (t->inbound == GNUNET_YES)
749 if (t->server_send != NULL)
751 ((struct ServerConnection *) t->server_send)->disconnect = GNUNET_YES;
753 if (t->server_send != NULL)
755 ((struct ServerConnection *) t->server_send)->disconnect = GNUNET_YES;
766 server_send (struct Session *s, struct HTTP_Message * msg)
768 GNUNET_CONTAINER_DLL_insert (s->msg_head, s->msg_tail, msg);
769 server_reschedule (s->plugin, GNUNET_YES);
776 * Call MHD IPv4 to process pending requests and then go back
777 * and schedule the next run.
778 * @param cls plugin as closure
779 * @param tc task context
782 server_v4_run (void *cls,
783 const struct GNUNET_SCHEDULER_TaskContext *tc)
785 struct Plugin *plugin = cls;
786 GNUNET_assert (cls != NULL);
788 plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK;
790 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
793 GNUNET_assert (MHD_YES == MHD_run (plugin->server_v4));
794 plugin->server_v4_task = server_schedule (plugin, plugin->server_v4, GNUNET_NO);
799 * Call MHD IPv6 to process pending requests and then go back
800 * and schedule the next run.
801 * @param cls plugin as closure
802 * @param tc task context
805 server_v6_run (void *cls,
806 const struct GNUNET_SCHEDULER_TaskContext *tc)
808 struct Plugin *plugin = cls;
809 GNUNET_assert (cls != NULL);
811 plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK;
813 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
816 GNUNET_assert (MHD_YES == MHD_run (plugin->server_v6));
817 plugin->server_v6_task = server_schedule (plugin, plugin->server_v6, GNUNET_NO);
821 * Function that queries MHD's select sets and
822 * starts the task waiting for them.
823 * @param plugin plugin
824 * @param daemon_handle the MHD daemon handle
825 * @return gnunet task identifier
827 static GNUNET_SCHEDULER_TaskIdentifier
828 server_schedule (struct Plugin *plugin, struct MHD_Daemon *daemon_handle, int now)
830 GNUNET_SCHEDULER_TaskIdentifier ret;
834 struct GNUNET_NETWORK_FDSet *wrs;
835 struct GNUNET_NETWORK_FDSet *wws;
836 struct GNUNET_NETWORK_FDSet *wes;
838 unsigned long long timeout;
839 static unsigned long long last_timeout = 0;
842 struct GNUNET_TIME_Relative tv;
844 ret = GNUNET_SCHEDULER_NO_TASK;
848 wrs = GNUNET_NETWORK_fdset_create ();
849 wes = GNUNET_NETWORK_fdset_create ();
850 wws = GNUNET_NETWORK_fdset_create ();
852 GNUNET_assert (MHD_YES == MHD_get_fdset (daemon_handle, &rs, &ws, &es, &max));
853 haveto = MHD_get_timeout (daemon_handle, &timeout);
854 if (haveto == MHD_YES)
856 if (timeout != last_timeout)
858 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
859 "SELECT Timeout changed from %llu to %llu\n",
860 last_timeout, timeout);
861 last_timeout = timeout;
863 tv.rel_value = (uint64_t) timeout;
866 tv = GNUNET_TIME_UNIT_SECONDS;
867 /* Force immediate run, since we have outbound data to send */
868 if (now == GNUNET_YES)
869 tv = GNUNET_TIME_UNIT_MILLISECONDS;
870 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max + 1);
871 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max + 1);
872 GNUNET_NETWORK_fdset_copy_native (wes, &es, max + 1);
873 if (daemon_handle == plugin->server_v4)
875 if (plugin->server_v4_task != GNUNET_SCHEDULER_NO_TASK)
877 GNUNET_SCHEDULER_cancel (plugin->server_v4_task);
878 plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK;
882 GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
883 GNUNET_SCHEDULER_NO_TASK, tv, wrs, wws,
884 &server_v4_run, plugin);
886 if (daemon_handle == plugin->server_v6)
888 if (plugin->server_v6_task != GNUNET_SCHEDULER_NO_TASK)
890 GNUNET_SCHEDULER_cancel (plugin->server_v6_task);
891 plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK;
895 GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
896 GNUNET_SCHEDULER_NO_TASK, tv, wrs, wws,
897 &server_v6_run, plugin);
899 GNUNET_NETWORK_fdset_destroy (wrs);
900 GNUNET_NETWORK_fdset_destroy (wws);
901 GNUNET_NETWORK_fdset_destroy (wes);
906 server_start (struct Plugin *plugin)
909 unsigned int timeout;
912 res = server_load_certificate (plugin);
913 if (res == GNUNET_SYSERR)
915 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
916 "Could not load or create server certificate! Loading plugin failed!\n");
922 #if MHD_VERSION >= 0x00090E00
923 timeout = GNUNET_CONSTANTS_DISCONNECT_SESSION_TIMEOUT.rel_value / 1000;
924 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
925 "MHD can set timeout per connection! Default time out %u sec.\n", timeout);
927 timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value / 1000;
928 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
929 "MHD cannot set timeout per connection! Default time out %u sec.\n", timeout);
931 plugin->server_v4 = NULL;
932 if (plugin->ipv4 == GNUNET_YES)
934 plugin->server_v4 = MHD_start_daemon (
941 MHD_NO_FLAG, plugin->port,
942 &server_accept_cb, plugin,
943 &server_access_cb, plugin,
944 MHD_OPTION_SOCK_ADDR,
945 (struct sockaddr_in *)
946 plugin->server_addr_v4,
947 MHD_OPTION_CONNECTION_LIMIT,
949 plugin->max_connections,
951 MHD_OPTION_HTTPS_PRIORITIES,
953 MHD_OPTION_HTTPS_MEM_KEY,
955 MHD_OPTION_HTTPS_MEM_CERT,
958 MHD_OPTION_CONNECTION_TIMEOUT,
960 MHD_OPTION_CONNECTION_MEMORY_LIMIT,
962 GNUNET_SERVER_MAX_MESSAGE_SIZE),
963 MHD_OPTION_NOTIFY_COMPLETED,
964 &server_disconnect_cb, plugin,
965 MHD_OPTION_EXTERNAL_LOGGER,
966 server_log, NULL, MHD_OPTION_END);
967 if (plugin->server_v4 == NULL)
970 plugin->server_v6 = NULL;
971 if (plugin->ipv6 == GNUNET_YES)
973 plugin->server_v6 = MHD_start_daemon (
980 MHD_USE_IPv6, plugin->port,
981 &server_accept_cb, plugin,
982 &server_access_cb, plugin,
983 MHD_OPTION_SOCK_ADDR,
984 (struct sockaddr_in6 *)
985 plugin->server_addr_v6,
986 MHD_OPTION_CONNECTION_LIMIT,
988 plugin->max_connections,
990 MHD_OPTION_HTTPS_PRIORITIES,
992 MHD_OPTION_HTTPS_MEM_KEY,
994 MHD_OPTION_HTTPS_MEM_CERT,
997 MHD_OPTION_CONNECTION_TIMEOUT,
999 MHD_OPTION_CONNECTION_MEMORY_LIMIT,
1001 GNUNET_SERVER_MAX_MESSAGE_SIZE),
1002 MHD_OPTION_NOTIFY_COMPLETED,
1003 &server_disconnect_cb, plugin,
1004 MHD_OPTION_EXTERNAL_LOGGER,
1005 server_log, NULL, MHD_OPTION_END);
1007 if (plugin->server_v6 == NULL)
1008 res = GNUNET_SYSERR;
1011 server_reschedule (plugin, GNUNET_NO);
1014 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
1015 "%s server component started on port %u\n", plugin->name,
1022 server_stop (struct Plugin *plugin)
1024 struct Session *s = NULL;
1025 struct Session *t = NULL;
1027 if (plugin->server_v4_task != GNUNET_SCHEDULER_NO_TASK)
1029 GNUNET_SCHEDULER_cancel (plugin->server_v4_task);
1030 plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK;
1033 if (plugin->server_v6_task != GNUNET_SCHEDULER_NO_TASK)
1035 GNUNET_SCHEDULER_cancel (plugin->server_v6_task);
1036 plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK;
1039 if (plugin->server_v4 != NULL)
1041 MHD_stop_daemon (plugin->server_v4);
1042 plugin->server_v4 = NULL;
1044 if (plugin->server_v6 != NULL)
1046 MHD_stop_daemon (plugin->server_v6);
1047 plugin->server_v6 = NULL;
1050 /* cleaning up semi-sessions never propagated */
1051 s = plugin->server_semi_head;
1055 if (s->msg_tk != NULL)
1056 GNUNET_SERVER_mst_destroy(s->msg_tk);
1062 GNUNET_free_non_null (plugin->crypto_init);
1063 GNUNET_free_non_null (plugin->cert);
1064 GNUNET_free_non_null (plugin->key);
1068 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
1069 "%s server component stopped\n", plugin->name);
1075 /* end of plugin_transport_http.c */