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);
189 GNUNET_free_non_null (plugin->cert);
191 GNUNET_free_non_null (plugin->crypto_init);
192 plugin->crypto_init = NULL;
194 return GNUNET_SYSERR;
196 GNUNET_assert (GNUNET_OK == GNUNET_OS_process_wait (cert_creation));
197 GNUNET_OS_process_close (cert_creation);
199 plugin->key = server_load_file (key_file);
200 plugin->cert = server_load_file (cert_file);
203 if ((plugin->key == NULL) || (plugin->cert == NULL))
205 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
207 ("No usable TLS certificate found and creating one failed!\n"),
209 GNUNET_free (key_file);
210 GNUNET_free (cert_file);
212 GNUNET_free_non_null (plugin->key);
214 GNUNET_free_non_null (plugin->cert);
216 GNUNET_free_non_null (plugin->crypto_init);
217 plugin->crypto_init = NULL;
219 return GNUNET_SYSERR;
221 GNUNET_free (key_file);
222 GNUNET_free (cert_file);
224 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "TLS certificate loaded\n");
233 * Reschedule the execution of both IPv4 and IPv6 server
234 * @param plugin the plugin
235 * @param now GNUNET_YES to schedule execution immediately, GNUNET_NO to wait
240 server_reschedule (struct Plugin *plugin, int now)
242 if (plugin->server_v4 != NULL)
244 if (plugin->server_v4_task != GNUNET_SCHEDULER_NO_TASK)
246 GNUNET_SCHEDULER_cancel(plugin->server_v4_task);
247 plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK;
249 plugin->server_v4_task = server_schedule (plugin, plugin->server_v4, now);
252 if (plugin->server_v6 != NULL)
254 if (plugin->server_v6_task != GNUNET_SCHEDULER_NO_TASK)
256 GNUNET_SCHEDULER_cancel(plugin->server_v6_task);
257 plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK;
259 plugin->server_v6_task = server_schedule (plugin, plugin->server_v6, now);
264 * Callback called by MessageStreamTokenizer when a message has arrived
265 * @param cls current session as closure
266 * @param client clien
267 * @param message the message to be forwarded to transport service
270 server_receive_mst_cb (void *cls, void *client,
271 const struct GNUNET_MessageHeader *message)
273 struct Session *s = cls;
275 struct Plugin *plugin = s->plugin;
277 struct GNUNET_TIME_Relative delay;
279 delay = http_plugin_receive (s, &s->target, message, s, s->addr, s->addrlen);
281 s->next_receive = GNUNET_TIME_absolute_add(GNUNET_TIME_absolute_get(), delay);
283 if (delay.rel_value > 0)
286 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name, "Server: peer `%s' address `%s' next read delayed for %llu ms\n",
287 GNUNET_i2s (&s->target), GNUNET_a2s (s->addr, s->addrlen), delay);
293 * Callback called by MHD when it needs data to send
294 * @param cls current session
295 * @param pos position in buffer
296 * @param buf the buffer to write data to
297 * @param max max number of bytes available in buffer
298 * @return bytes written to buffer
301 server_send_callback (void *cls, uint64_t pos, char *buf, size_t max)
303 struct Session *s = cls;
305 struct HTTP_Message *msg;
312 if ((msg->size - msg->pos) <= max)
314 memcpy (buf, &msg->buf[msg->pos], (msg->size - msg->pos));
315 bytes_read = msg->size - msg->pos;
316 msg->pos += (msg->size - msg->pos);
320 memcpy (buf, &msg->buf[msg->pos], max);
325 /* removing message */
326 if (msg->pos == msg->size)
328 if (NULL != msg->transmit_cont)
329 msg->transmit_cont (msg->transmit_cont_cls, &s->target, GNUNET_OK);
330 GNUNET_CONTAINER_DLL_remove(s->msg_head, s->msg_tail, msg);
336 struct Plugin *plugin = s->plugin;
337 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
338 "Server: %X: sent %u bytes\n",
344 static struct ServerConnection *
345 server_lookup_session (struct Plugin *plugin,
346 struct MHD_Connection *mhd_connection,
350 struct Session *s = NULL;
352 struct ServerConnection *sc = NULL;
353 const union MHD_ConnectionInfo *conn_info;
355 struct IPv4HttpAddress a4;
356 struct IPv6HttpAddress a6;
357 struct sockaddr_in * s4;
358 struct sockaddr_in6 * s6;
361 struct GNUNET_PeerIdentity target;
362 int check = GNUNET_NO;
366 conn_info = MHD_get_connection_info (mhd_connection, MHD_CONNECTION_INFO_CLIENT_ADDRESS);
367 if ((conn_info->client_addr->sa_family != AF_INET) && (conn_info->client_addr->sa_family != AF_INET6))
370 if ((strlen(&url[1]) >= 105) && (url[104] == ';'))
373 char * tagc = (char *) &url[105];
374 memcpy(&hash, &url[1], 103);
376 if (GNUNET_OK == GNUNET_CRYPTO_hash_from_string ((const char *) &hash,
377 &(target.hashPubKey)))
379 tag = strtoul (tagc, NULL, 10);
385 if (0 == strcmp (MHD_HTTP_METHOD_PUT, method))
386 direction = _RECEIVE;
387 if (0 == strcmp (MHD_HTTP_METHOD_GET, method))
390 if (check == GNUNET_NO)
393 plugin->cur_connections++;
396 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
397 "Server: New inbound connection from %s with tag %u\n", GNUNET_i2s(&target), tag);
399 /* find duplicate session */
405 if ((t->inbound) && (0 == memcmp (&t->target, &target, sizeof (struct GNUNET_PeerIdentity))) &&
406 /* FIXME add source address comparison */
414 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
415 "Server: Duplicate session, dismissing new connection from peer `%s'\n", GNUNET_i2s (&target));
420 /* find semi-session */
421 t = plugin->server_semi_head;
425 /* FIXME add source address comparison */
426 if ((0 == memcmp (&t->target, &target, sizeof (struct GNUNET_PeerIdentity))) &&
438 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
439 "Server: Found existing semi-session for `%s'\n", GNUNET_i2s (&target));
442 if ((direction == _SEND) && (t->server_send != NULL))
445 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
446 "Server: Duplicate GET session, dismissing new connection from peer `%s'\n", GNUNET_i2s (&target));
453 GNUNET_CONTAINER_DLL_remove(plugin->server_semi_head, plugin->server_semi_tail, s);
454 GNUNET_CONTAINER_DLL_insert(plugin->head, plugin->tail, s);
456 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
457 "Server: Found matching semi-session, merging session for peer `%s'\n", GNUNET_i2s (&target));
462 if ((direction == _RECEIVE) && (t->server_recv != NULL))
465 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
466 "Server: Duplicate PUT session, dismissing new connection from peer `%s'\n", GNUNET_i2s (&target));
473 GNUNET_CONTAINER_DLL_remove(plugin->server_semi_head, plugin->server_semi_tail, s);
474 GNUNET_CONTAINER_DLL_insert(plugin->head, plugin->tail, s);
476 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
477 "Server: Found matching semi-session, merging session for peer `%s'\n", GNUNET_i2s (&target));
483 /* create new session */
485 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
486 "Server: Creating new session for peer `%s' \n", GNUNET_i2s (&target));
489 switch (conn_info->client_addr->sa_family)
492 s4 = ((struct sockaddr_in * ) conn_info->client_addr);
493 a4.u4_port = s4->sin_port;
494 memcpy (&a4.ipv4_addr, &s4->sin_addr,
495 sizeof (struct in_addr));
497 a_len = sizeof (struct IPv4HttpAddress);
500 s6 = ((struct sockaddr_in6 * ) conn_info->client_addr);
501 a6.u6_port = s6->sin6_port;
502 memcpy (&a6.ipv6_addr, &s6->sin6_addr,
503 sizeof (struct in6_addr));
505 a_len = sizeof (struct IPv6HttpAddress);
511 s = create_session (plugin,
518 s->inbound = GNUNET_YES;
519 s->next_receive = GNUNET_TIME_absolute_get_zero();
521 if (0 == strcmp (MHD_HTTP_METHOD_PUT, method))
523 if (0 == strcmp (MHD_HTTP_METHOD_GET, method))
525 GNUNET_CONTAINER_DLL_insert (plugin->server_semi_head, plugin->server_semi_tail, s);
530 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
531 "Server: Invalid connection request\n");
536 sc = GNUNET_malloc (sizeof (struct ServerConnection));
537 sc->mhd_conn = mhd_connection;
538 sc->direction = direction;
540 if (direction == _SEND)
542 if (direction == _RECEIVE)
545 #if MHD_VERSION >= 0x00090E00
546 int to = (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value / 1000);
548 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
549 "Server: Setting timeout for %X to %u sec.\n", sc, to);
551 MHD_set_connection_option (mhd_connection, MHD_CONNECTION_OPTION_TIMEOUT, to);
552 server_reschedule (plugin, GNUNET_NO);
558 * Process GET or PUT request received via MHD. For
559 * GET, queue response that will send back our pending
560 * messages. For PUT, process incoming data and send
561 * to GNUnet core. In either case, check if a session
562 * already exists and create a new one if not.
565 server_access_cb (void *cls, struct MHD_Connection *mhd_connection,
566 const char *url, const char *method, const char *version,
567 const char *upload_data, size_t * upload_data_size,
568 void **httpSessionCache)
571 struct Plugin *plugin = cls;
572 struct ServerConnection *sc = *httpSessionCache;
573 struct Session *s = NULL;
576 struct MHD_Response *response;
578 GNUNET_assert (cls != NULL);
582 sc = server_lookup_session(plugin, mhd_connection, url, method);
584 (*httpSessionCache) = sc;
587 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
588 res = MHD_queue_response (mhd_connection, MHD_HTTP_NOT_FOUND, response);
589 MHD_destroy_response (response);
594 /* existing connection */
595 sc = (*httpSessionCache);
598 /* connection is to be disconnected*/
599 if (sc->disconnect == GNUNET_YES)
601 response = MHD_create_response_from_data (strlen ("Thank you!"), "Thank you!", MHD_NO, MHD_NO);
602 res = MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
604 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
605 "Sent HTTP/1.1: 200 OK as PUT Response\n");
607 MHD_destroy_response (response);
611 GNUNET_assert (s != NULL);
612 if (sc->direction == _SEND)
614 response = MHD_create_response_from_callback (-1, 32 * 1024, &server_send_callback,
616 res = MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
617 MHD_destroy_response (response);
620 if (sc->direction == _RECEIVE)
622 if (*upload_data_size == 0)
625 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
626 "Server: Peer `%s' PUT on address `%s' connected\n",
627 GNUNET_i2s (&s->target), GNUNET_a2s (s->addr, s->addrlen));
633 if ((*upload_data_size > 0))
636 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
637 "Server: peer `%s' PUT on address `%s' received %Zu bytes\n",
638 GNUNET_i2s (&s->target), GNUNET_a2s (s->addr, s->addrlen), *upload_data_size);
640 struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get();
641 if (( s->next_receive.abs_value <= now.abs_value))
644 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
645 "Server: %X: PUT with %u bytes forwarded to MST\n", s,
648 if (s->msg_tk == NULL)
650 s->msg_tk = GNUNET_SERVER_mst_create (&server_receive_mst_cb, s);
652 res = GNUNET_SERVER_mst_receive (s->msg_tk, s, upload_data, *upload_data_size, GNUNET_NO, GNUNET_NO);
654 #if MHD_VERSION >= 0x00090E00
655 int to = (GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value / 1000);
656 struct ServerConnection *t = NULL;
659 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
660 "Server: Received %Zu bytes\n", *upload_data_size);
663 /* Setting timeouts for other connections */
664 if (s->server_recv != NULL)
668 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
669 "Server: Setting timeout for %X to %u sec.\n", t, to);
671 MHD_set_connection_option (t->mhd_conn, MHD_CONNECTION_OPTION_TIMEOUT, to);
673 if (s->server_send != NULL)
677 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
678 "Server: Setting timeout for %X to %u sec.\n", t, to);
680 MHD_set_connection_option (t->mhd_conn, MHD_CONNECTION_OPTION_TIMEOUT, to);
682 server_reschedule (plugin, GNUNET_NO);
684 (*upload_data_size) = 0;
689 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
690 "Server: %X no inbound bandwidth available! Next read was delayed by %llu ms\n", s, now.abs_value - s->next_receive.abs_value);
702 server_disconnect_cb (void *cls, struct MHD_Connection *connection,
703 void **httpSessionCache)
705 struct ServerConnection *sc = *httpSessionCache;
706 struct ServerConnection *tc = *httpSessionCache;
707 struct Session * s = NULL;
708 struct Session * t = NULL;
709 struct Plugin * plugin = NULL;
716 if (sc->direction == _SEND)
719 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
720 "Server: %X peer `%s' GET on address `%s' disconnected\n",
722 GNUNET_i2s (&s->target), GNUNET_a2s (s->addr, s->addrlen));
724 s->server_send = NULL;
726 if (s->server_recv != NULL)
729 tc->disconnect = GNUNET_YES;
730 #if MHD_VERSION >= 0x00090E00
731 MHD_set_connection_option (sc->mhd_conn, MHD_CONNECTION_OPTION_TIMEOUT, 1);
735 if (sc->direction == _RECEIVE)
738 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
739 "Server: %X peer `%s' PUT on address `%s' disconnected\n",
741 GNUNET_i2s (&s->target), GNUNET_a2s (s->addr, s->addrlen));
743 s->server_recv = NULL;
744 if (s->server_send != NULL)
747 tc->disconnect = GNUNET_YES;
748 #if MHD_VERSION >= 0x00090E00
749 MHD_set_connection_option (sc->mhd_conn, MHD_CONNECTION_OPTION_TIMEOUT, 1);
752 if (s->msg_tk != NULL)
754 GNUNET_SERVER_mst_destroy(s->msg_tk);
760 t = plugin->server_semi_head;
765 GNUNET_CONTAINER_DLL_remove(plugin->server_semi_head, plugin->server_semi_tail, s);
766 GNUNET_CONTAINER_DLL_insert(plugin->head, plugin->tail, s);
771 plugin->cur_connections--;
773 server_reschedule (plugin, GNUNET_NO);
775 if ((s->server_send == NULL) && (s->server_recv == NULL))
778 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
779 "Server: peer `%s' on address `%s' disconnected\n",
780 GNUNET_i2s (&s->target), GNUNET_a2s (s->addr, s->addrlen));
782 if (s->msg_tk != NULL)
784 GNUNET_SERVER_mst_destroy(s->msg_tk);
788 notify_session_end(s->plugin, &s->target, s);
793 server_disconnect (struct Session *s)
795 struct Plugin *plugin = s->plugin;
796 struct Session *t = plugin->head;
800 if (t->inbound == GNUNET_YES)
802 if (t->server_send != NULL)
804 ((struct ServerConnection *) t->server_send)->disconnect = GNUNET_YES;
806 if (t->server_send != NULL)
808 ((struct ServerConnection *) t->server_send)->disconnect = GNUNET_YES;
819 server_send (struct Session *s, struct HTTP_Message * msg)
821 GNUNET_CONTAINER_DLL_insert (s->msg_head, s->msg_tail, msg);
822 server_reschedule (s->plugin, GNUNET_YES);
829 * Call MHD IPv4 to process pending requests and then go back
830 * and schedule the next run.
831 * @param cls plugin as closure
832 * @param tc task context
835 server_v4_run (void *cls,
836 const struct GNUNET_SCHEDULER_TaskContext *tc)
838 struct Plugin *plugin = cls;
839 GNUNET_assert (cls != NULL);
841 plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK;
843 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
846 GNUNET_assert (MHD_YES == MHD_run (plugin->server_v4));
847 if (plugin->server_v4 != NULL)
848 plugin->server_v4_task = server_schedule (plugin, plugin->server_v4, GNUNET_NO);
853 * Call MHD IPv6 to process pending requests and then go back
854 * and schedule the next run.
855 * @param cls plugin as closure
856 * @param tc task context
859 server_v6_run (void *cls,
860 const struct GNUNET_SCHEDULER_TaskContext *tc)
862 struct Plugin *plugin = cls;
863 GNUNET_assert (cls != NULL);
865 plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK;
867 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
870 GNUNET_assert (MHD_YES == MHD_run (plugin->server_v6));
871 if (plugin->server_v6 != NULL)
872 plugin->server_v6_task = server_schedule (plugin, plugin->server_v6, GNUNET_NO);
876 * Function that queries MHD's select sets and
877 * starts the task waiting for them.
878 * @param plugin plugin
879 * @param daemon_handle the MHD daemon handle
880 * @return gnunet task identifier
882 static GNUNET_SCHEDULER_TaskIdentifier
883 server_schedule (struct Plugin *plugin, struct MHD_Daemon *daemon_handle, int now)
885 GNUNET_SCHEDULER_TaskIdentifier ret;
889 struct GNUNET_NETWORK_FDSet *wrs;
890 struct GNUNET_NETWORK_FDSet *wws;
891 struct GNUNET_NETWORK_FDSet *wes;
893 unsigned long long timeout;
894 static unsigned long long last_timeout = 0;
897 struct GNUNET_TIME_Relative tv;
899 ret = GNUNET_SCHEDULER_NO_TASK;
903 wrs = GNUNET_NETWORK_fdset_create ();
904 wes = GNUNET_NETWORK_fdset_create ();
905 wws = GNUNET_NETWORK_fdset_create ();
907 GNUNET_assert (MHD_YES == MHD_get_fdset (daemon_handle, &rs, &ws, &es, &max));
908 haveto = MHD_get_timeout (daemon_handle, &timeout);
909 if (haveto == MHD_YES)
911 if (timeout != last_timeout)
914 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
915 "SELECT Timeout changed from %llu to %llu\n",
916 last_timeout, timeout);
918 last_timeout = timeout;
920 tv.rel_value = (uint64_t) timeout;
923 tv = GNUNET_TIME_UNIT_SECONDS;
924 /* Force immediate run, since we have outbound data to send */
925 if (now == GNUNET_YES)
926 tv = GNUNET_TIME_UNIT_MILLISECONDS;
927 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max + 1);
928 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max + 1);
929 GNUNET_NETWORK_fdset_copy_native (wes, &es, max + 1);
930 if (daemon_handle == plugin->server_v4)
932 if (plugin->server_v4_task != GNUNET_SCHEDULER_NO_TASK)
934 GNUNET_SCHEDULER_cancel (plugin->server_v4_task);
935 plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK;
939 GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
940 GNUNET_SCHEDULER_NO_TASK, tv, wrs, wws,
941 &server_v4_run, plugin);
943 if (daemon_handle == plugin->server_v6)
945 if (plugin->server_v6_task != GNUNET_SCHEDULER_NO_TASK)
947 GNUNET_SCHEDULER_cancel (plugin->server_v6_task);
948 plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK;
952 GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
953 GNUNET_SCHEDULER_NO_TASK, tv, wrs, wws,
954 &server_v6_run, plugin);
956 GNUNET_NETWORK_fdset_destroy (wrs);
957 GNUNET_NETWORK_fdset_destroy (wws);
958 GNUNET_NETWORK_fdset_destroy (wes);
963 server_start (struct Plugin *plugin)
966 unsigned int timeout;
969 res = server_load_certificate (plugin);
970 if (res == GNUNET_SYSERR)
972 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
973 "Could not load or create server certificate! Loading plugin failed!\n");
979 #if MHD_VERSION >= 0x00090E00
980 timeout = GNUNET_CONSTANTS_DISCONNECT_SESSION_TIMEOUT.rel_value / 1000;
981 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
982 "MHD can set timeout per connection! Default time out %u sec.\n", timeout);
984 timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value / 1000;
985 GNUNET_log_from (GNUNET_ERROR_TYPE_WARNING, plugin->name,
986 "MHD cannot set timeout per connection! Default time out %u sec.\n", timeout);
988 plugin->server_v4 = NULL;
989 if (plugin->ipv4 == GNUNET_YES)
991 plugin->server_v4 = MHD_start_daemon (
998 MHD_NO_FLAG, plugin->port,
999 &server_accept_cb, plugin,
1000 &server_access_cb, plugin,
1001 MHD_OPTION_SOCK_ADDR,
1002 (struct sockaddr_in *)
1003 plugin->server_addr_v4,
1004 MHD_OPTION_CONNECTION_LIMIT,
1006 plugin->max_connections,
1008 MHD_OPTION_HTTPS_PRIORITIES,
1009 plugin->crypto_init,
1010 MHD_OPTION_HTTPS_MEM_KEY,
1012 MHD_OPTION_HTTPS_MEM_CERT,
1015 MHD_OPTION_CONNECTION_TIMEOUT,
1017 MHD_OPTION_CONNECTION_MEMORY_LIMIT,
1019 GNUNET_SERVER_MAX_MESSAGE_SIZE),
1020 MHD_OPTION_NOTIFY_COMPLETED,
1021 &server_disconnect_cb, plugin,
1022 MHD_OPTION_EXTERNAL_LOGGER,
1023 server_log, NULL, MHD_OPTION_END);
1025 plugin->server_v6 = NULL;
1026 if (plugin->ipv6 == GNUNET_YES)
1028 plugin->server_v6 = MHD_start_daemon (
1035 MHD_USE_IPv6, plugin->port,
1036 &server_accept_cb, plugin,
1037 &server_access_cb, plugin,
1038 MHD_OPTION_SOCK_ADDR,
1039 (struct sockaddr_in6 *)
1040 plugin->server_addr_v6,
1041 MHD_OPTION_CONNECTION_LIMIT,
1043 plugin->max_connections,
1045 MHD_OPTION_HTTPS_PRIORITIES,
1046 plugin->crypto_init,
1047 MHD_OPTION_HTTPS_MEM_KEY,
1049 MHD_OPTION_HTTPS_MEM_CERT,
1052 MHD_OPTION_CONNECTION_TIMEOUT,
1054 MHD_OPTION_CONNECTION_MEMORY_LIMIT,
1056 GNUNET_SERVER_MAX_MESSAGE_SIZE),
1057 MHD_OPTION_NOTIFY_COMPLETED,
1058 &server_disconnect_cb, plugin,
1059 MHD_OPTION_EXTERNAL_LOGGER,
1060 server_log, NULL, MHD_OPTION_END);
1064 if ((plugin->ipv4 == GNUNET_YES) && (plugin->server_v4 == NULL))
1066 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
1067 "Failed to start %s IPv4 server component on port %u\n", plugin->name,
1069 return GNUNET_SYSERR;
1071 if ((plugin->ipv6 == GNUNET_YES) && (plugin->server_v6 == NULL))
1073 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
1074 "Failed to start %s IPv6 server component on port %u\n", plugin->name,
1076 return GNUNET_SYSERR;
1079 server_reschedule (plugin, GNUNET_NO);
1082 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
1083 "%s server component started on port %u\n", plugin->name,
1090 server_stop (struct Plugin *plugin)
1092 struct Session *s = NULL;
1093 struct Session *t = NULL;
1095 struct MHD_Daemon *server_v4_tmp = plugin->server_v4;
1096 plugin->server_v4 = NULL;
1097 struct MHD_Daemon *server_v6_tmp = plugin->server_v6;
1098 plugin->server_v6 = NULL;
1100 if (plugin->server_v4_task != GNUNET_SCHEDULER_NO_TASK)
1102 GNUNET_SCHEDULER_cancel (plugin->server_v4_task);
1103 plugin->server_v4_task = GNUNET_SCHEDULER_NO_TASK;
1106 if (plugin->server_v6_task != GNUNET_SCHEDULER_NO_TASK)
1108 GNUNET_SCHEDULER_cancel (plugin->server_v6_task);
1109 plugin->server_v6_task = GNUNET_SCHEDULER_NO_TASK;
1112 if (server_v6_tmp != NULL)
1114 MHD_stop_daemon (server_v4_tmp);
1116 if (server_v6_tmp != NULL)
1118 MHD_stop_daemon (server_v6_tmp);
1121 /* cleaning up semi-sessions never propagated */
1122 s = plugin->server_semi_head;
1131 GNUNET_free_non_null (plugin->crypto_init);
1132 GNUNET_free_non_null (plugin->cert);
1133 GNUNET_free_non_null (plugin->key);
1137 GNUNET_log_from (GNUNET_ERROR_TYPE_DEBUG, plugin->name,
1138 "%s server component stopped\n", plugin->name);
1144 /* end of plugin_transport_http.c */