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
28 #include "gnunet_common.h"
29 #include "gnunet_constants.h"
30 #include "gnunet_protocols.h"
31 #include "gnunet_connection_lib.h"
32 #include "gnunet_service_lib.h"
33 #include "gnunet_statistics_service.h"
34 #include "gnunet_transport_service.h"
35 #include "gnunet_resolver_service.h"
36 #include "gnunet_server_lib.h"
37 #include "gnunet_container_lib.h"
38 #include "plugin_transport.h"
39 #include "gnunet_os_lib.h"
40 #include "microhttpd.h"
41 #include <curl/curl.h>
44 #define LIBGNUNET_PLUGIN_TRANSPORT_INIT libgnunet_plugin_transport_https_init
45 #define LIBGNUNET_PLUGIN_TRANSPORT_DONE libgnunet_plugin_transport_https_done
46 #define LIBGNUNET_PLUGIN_TRANSPORT_COMPONENT transport_https
47 #define PROTOCOL_PREFIX "https"
49 #define LIBGNUNET_PLUGIN_TRANSPORT_INIT libgnunet_plugin_transport_http_init
50 #define LIBGNUNET_PLUGIN_TRANSPORT_DONE libgnunet_plugin_transport_http_done
51 #define LIBGNUNET_PLUGIN_TRANSPORT_COMPONENT transport_http
52 #define PROTOCOL_PREFIX "http"
55 #define DEBUG_HTTP GNUNET_NO
56 #define DEBUG_CURL GNUNET_NO
57 #define DEBUG_MHD GNUNET_NO
58 #define DEBUG_CONNECTIONS GNUNET_NO
59 #define DEBUG_SESSION_SELECTION GNUNET_NO
60 #define DEBUG_SCHEDULING GNUNET_NO
61 #define CURL_TCP_NODELAY GNUNET_YES
63 #define INBOUND GNUNET_NO
64 #define OUTBOUND GNUNET_YES
69 * Text of the response sent back after the last bytes of a PUT
70 * request have been received (just to formally obey the HTTP
73 #define HTTP_PUT_RESPONSE "Thank you!"
76 * After how long do we expire an address that we
77 * learned from another peer if it is not reconfirmed
80 #define LEARNED_ADDRESS_EXPIRATION GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 6)
83 * Page returned if request invalid
85 #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>"
88 * Timeout for a http connect
90 #define HTTP_CONNECT_TIMEOUT 30
94 * Network format for IPv4 addresses.
96 struct IPv4HttpAddress
101 struct IPv4HttpAddress * next;
104 * Linked list previous
106 struct IPv4HttpAddress * prev;
109 * IPv4 address, in network byte order.
111 uint32_t ipv4_addr GNUNET_PACKED;
114 * Port number, in network byte order.
116 uint16_t u_port GNUNET_PACKED;
122 * Network format for IPv6 addresses.
124 struct IPv6HttpAddress
129 struct IPv6HttpAddress * next;
132 * Linked list previous
134 struct IPv6HttpAddress * prev;
139 struct in6_addr ipv6_addr GNUNET_PACKED;
142 * Port number, in network byte order.
144 uint16_t u6_port GNUNET_PACKED;
150 * Message to send using http
155 * next pointer for double linked list
157 struct HTTP_Message * next;
160 * previous pointer for double linked list
162 struct HTTP_Message * prev;
165 * buffer containing data to send
170 * amount of data already sent
180 * Continuation function to call once the transmission buffer
181 * has again space available. NULL if there is no
182 * continuation to call.
184 GNUNET_TRANSPORT_TransmitContinuation transmit_cont;
187 * Closure for transmit_cont.
189 void *transmit_cont_cls;
193 struct HTTP_PeerContext
198 struct GNUNET_PeerIdentity identity;
201 * Pointer to the global plugin struct.
203 struct Plugin *plugin;
206 * Linked list of connections with this peer
209 struct Session * head;
212 * Linked list of connections with this peer
215 struct Session * tail;
218 * id for next session
220 size_t session_id_counter;
223 * Last session used to send data
225 struct Session * last_session;
228 * The task resetting inbound quota delay
230 GNUNET_SCHEDULER_TaskIdentifier reset_task;
233 * Delay from transport service inbound quota tracker when to receive data again
235 struct GNUNET_TIME_Relative delay;
244 struct SessionHeader header;
247 * next session in linked list
249 struct Session * next;
252 * previous session in linked list
254 struct Session * prev;
257 * address of this session
272 * Message queue for outbound messages
275 struct HTTP_Message * pending_msgs_head;
278 * Message queue for outbound messages
281 struct HTTP_Message * pending_msgs_tail;
284 * partner peer this connection belongs to
286 struct HTTP_PeerContext * peercontext;
289 * message stream tokenizer for incoming data
291 struct GNUNET_SERVER_MessageStreamTokenizer *msgtok;
295 * outbound: OUTBOUND (GNUNET_YES)
296 * inbound : INBOUND (GNUNET_NO)
298 unsigned int direction;
301 * is session connected to send data?
303 unsigned int send_connected;
306 * is send connection active?
308 unsigned int send_active;
311 * connection disconnect forced (e.g. from transport)
313 unsigned int send_force_disconnect;
316 * is session connected to receive data?
318 unsigned int recv_connected;
321 * is receive connection active?
323 unsigned int recv_active;
326 * connection disconnect forced (e.g. from transport)
328 unsigned int recv_force_disconnect;
332 * id for next session
333 * NOTE: 0 is not an ID, zero is not defined. A correct ID is always > 0
338 * entity managing sending data
339 * outbound session: CURL *
340 * inbound session: mhd_connection *
342 void * send_endpoint;
345 * entity managing recieving data
346 * outbound session: CURL *
347 * inbound session: mhd_connection *
349 void * recv_endpoint;
354 size_t queue_length_cur;
359 size_t queue_length_max;
364 * Encapsulation of all of the state of the plugin.
371 struct GNUNET_TRANSPORT_PluginEnvironment *env;
374 * Handle for reporting statistics.
376 struct GNUNET_STATISTICS_Handle *stats;
381 uint16_t port_inbound;
383 struct GNUNET_CONTAINER_MultiHashMap *peers;
386 * Daemon for listening for new IPv4 connections.
388 struct MHD_Daemon *http_server_daemon_v4;
391 * Daemon for listening for new IPv6connections.
393 struct MHD_Daemon *http_server_daemon_v6;
396 * Our primary task for http daemon handling IPv4 connections
398 GNUNET_SCHEDULER_TaskIdentifier http_server_task_v4;
401 * Our primary task for http daemon handling IPv6 connections
403 GNUNET_SCHEDULER_TaskIdentifier http_server_task_v6;
406 * The task sending data
408 GNUNET_SCHEDULER_TaskIdentifier http_curl_task;
413 CURLM * multi_handle;
418 struct IPv4HttpAddress * ipv4_addr_head;
423 struct IPv4HttpAddress * ipv4_addr_tail;
428 struct IPv6HttpAddress * ipv6_addr_head;
433 struct IPv6HttpAddress * ipv6_addr_tail;
436 * Our ASCII encoded, hashed peer identity
437 * This string is used to distinguish between connections and is added to the urls
439 struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
442 * IPv4 Address the plugin binds to
444 struct sockaddr_in * bind4_address;
447 * IPv6 Address the plugins binds to
449 struct sockaddr_in6 * bind6_address;
452 * Hostname to bind to
454 char * bind_hostname;
467 * Closure passed by MHD to the mhd_logger function
471 /* only needed for HTTPS plugin */
473 /* The certificate MHD uses as an \0 terminated string */
476 /* The private key MHD uses as an \0 terminated string */
479 /* crypto init string */
486 * Function called for a quick conversion of the binary address to
487 * a numeric address. Note that the caller must not free the
488 * address and that the next call to this function is allowed
489 * to override the address again.
492 * @param addr binary address
493 * @param addrlen length of the address
494 * @return string representing the same address
497 http_plugin_address_to_string (void *cls,
503 * Call MHD to process pending ipv4 requests and then go back
504 * and schedule the next run.
506 static void http_server_daemon_v4_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
508 * Call MHD to process pending ipv6 requests and then go back
509 * and schedule the next run.
511 static void http_server_daemon_v6_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
514 * Function setting up curl handle and selecting message to send
515 * @param plugin plugin
516 * @param ses session to send data to
517 * @param con connection
518 * @return bytes sent to peer
520 static int send_check_connections (struct Plugin *plugin, struct Session *ps);
523 * Function setting up file descriptors and scheduling task to run
525 * @param ses session to send data to
528 static int curl_schedule (struct Plugin *plugin);
531 * Task scheduled to reset the inbound quota delay for a specific peer
532 * @param cls plugin as closure
533 * @param tc task context
535 static void reset_inbound_quota_delay (void *cls,
536 const struct GNUNET_SCHEDULER_TaskContext *tc)
538 struct HTTP_PeerContext * pc;
540 GNUNET_assert(cls !=NULL);
542 pc = (struct HTTP_PeerContext *) cls;
543 pc->reset_task = GNUNET_SCHEDULER_NO_TASK;
545 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
548 pc->delay = GNUNET_TIME_relative_get_zero ();
553 * Creates a valid url from passed address and id
554 * @param plugin plugin
555 * @param addr address to create url from
556 * @param addrlen address lenth
557 * @param id session id
558 * @return the created url
560 static char * create_url(struct Plugin *plugin, const void * addr, size_t addrlen, size_t id)
563 char *addr_str = (char *) http_plugin_address_to_string(NULL, addr, addrlen);
565 GNUNET_assert ((addr!=NULL) && (addrlen != 0));
566 GNUNET_asprintf(&url,
567 "%s://%s/%s;%u", PROTOCOL_PREFIX, addr_str,
568 (char *) (&plugin->my_ascii_hash_ident),id);
569 GNUNET_free_non_null(addr_str);
574 * Removes a message from the linked list of messages
577 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
579 static int remove_http_message (struct Session * ps, struct HTTP_Message * msg)
581 GNUNET_CONTAINER_DLL_remove(ps->pending_msgs_head,ps->pending_msgs_tail,msg);
587 * Iterator to remove peer context
588 * @param cls the plugin
589 * @param key the peers public key hashcode
590 * @param value the peer context
591 * @return GNUNET_YES on success
593 int remove_peer_context_Iterator (void *cls, const GNUNET_HashCode *key, void *value)
595 struct Plugin *plugin = cls;
596 struct HTTP_PeerContext * pc = value;
597 struct Session * ps = pc->head;
598 struct Session * tmp = NULL;
599 struct HTTP_Message * msg = NULL;
600 struct HTTP_Message * msg_tmp = NULL;
602 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing context for peer `%s'\n",GNUNET_i2s(&pc->identity));
604 GNUNET_CONTAINER_multihashmap_remove (plugin->peers, &pc->identity.hashPubKey, pc);
607 plugin->env->session_end(plugin, &pc->identity, ps);
610 GNUNET_free_non_null (ps->addr);
611 GNUNET_free(ps->url);
612 if (ps->msgtok != NULL)
613 GNUNET_SERVER_mst_destroy (ps->msgtok);
615 msg = ps->pending_msgs_head;
622 if (ps->direction==OUTBOUND)
624 if (ps->send_endpoint!=NULL)
625 curl_easy_cleanup(ps->send_endpoint);
626 if (ps->recv_endpoint!=NULL)
627 curl_easy_cleanup(ps->recv_endpoint);
634 GNUNET_STATISTICS_update (plugin->env->stats,
635 gettext_noop ("# HTTP peers active"),
643 * Removes a session from the linked list of sessions
644 * @param pc peer context
646 * @param call_msg_cont GNUNET_YES to call pending message continuations, otherwise no
647 * @param call_msg_cont_result result to call message continuations with
648 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
650 static int remove_session (struct HTTP_PeerContext * pc, struct Session * ps, int call_msg_cont, int call_msg_cont_result)
652 struct HTTP_Message * msg;
653 struct Plugin * plugin = ps->peercontext->plugin;
655 #if DEBUG_CONNECTIONS
656 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: removing %s session %X with id %u\n", ps, (ps->direction == INBOUND) ? "inbound" : "outbound", ps, ps->session_id);
658 plugin->env->session_end(plugin, &pc->identity, ps);
660 GNUNET_free_non_null (ps->addr);
661 GNUNET_SERVER_mst_destroy (ps->msgtok);
662 GNUNET_free(ps->url);
664 if (ps->direction==INBOUND)
666 if (ps->recv_endpoint != NULL)
668 curl_easy_cleanup(ps->recv_endpoint);
669 ps->recv_endpoint = NULL;
671 if (ps->send_endpoint != NULL)
673 curl_easy_cleanup(ps->send_endpoint);
674 ps->send_endpoint = NULL;
678 msg = ps->pending_msgs_head;
681 if ((call_msg_cont == GNUNET_YES) && (msg->transmit_cont!=NULL))
683 msg->transmit_cont (msg->transmit_cont_cls,&pc->identity,call_msg_cont_result);
685 GNUNET_CONTAINER_DLL_remove(ps->pending_msgs_head,ps->pending_msgs_head,msg);
687 msg = ps->pending_msgs_head;
690 GNUNET_CONTAINER_DLL_remove(pc->head,pc->tail,ps);
694 /* no sessions left remove peer */
698 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No sessions left for peer `%s', removing context\n",GNUNET_i2s(&pc->identity));
700 remove_peer_context_Iterator(plugin, &pc->identity.hashPubKey, pc);
708 * Add the IP of our network interface to the list of
709 * our external IP addresses.
711 * @param cls the 'struct Plugin*'
712 * @param name name of the interface
713 * @param isDefault do we think this may be our default interface
714 * @param addr address of the interface
715 * @param addrlen number of bytes in addr
716 * @return GNUNET_OK to continue iterating
719 process_interfaces (void *cls,
722 const struct sockaddr *addr, socklen_t addrlen)
724 struct Plugin *plugin = cls;
725 struct IPv4HttpAddress * t4;
726 struct IPv6HttpAddress * t6;
730 GNUNET_assert(cls !=NULL);
731 af = addr->sa_family;
732 if ((af == AF_INET) && (plugin->use_ipv4 == GNUNET_YES) && (plugin->bind6_address == NULL))
734 struct in_addr bnd_cmp = ((struct sockaddr_in *) addr)->sin_addr;
735 t4 = GNUNET_malloc(sizeof(struct IPv4HttpAddress));
736 /* Not skipping loopback addresses
737 if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
743 t4->ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
744 t4->u_port = htons (plugin->port_inbound);
745 if (plugin->bind4_address != NULL)
747 if (0 == memcmp(&plugin->bind4_address->sin_addr, &bnd_cmp, sizeof (struct in_addr)))
749 GNUNET_CONTAINER_DLL_insert(plugin->ipv4_addr_head,plugin->ipv4_addr_tail,t4);
750 plugin->env->notify_address(plugin->env->cls,PROTOCOL_PREFIX,t4, sizeof (struct IPv4HttpAddress), GNUNET_TIME_UNIT_FOREVER_REL);
758 GNUNET_CONTAINER_DLL_insert(plugin->ipv4_addr_head,plugin->ipv4_addr_tail,t4);
759 plugin->env->notify_address(plugin->env->cls,PROTOCOL_PREFIX,t4, sizeof (struct IPv4HttpAddress), GNUNET_TIME_UNIT_FOREVER_REL);
763 else if ((af == AF_INET6) && (plugin->use_ipv6 == GNUNET_YES) && (plugin->bind4_address == NULL))
765 struct in6_addr bnd_cmp6 = ((struct sockaddr_in6 *) addr)->sin6_addr;
766 if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
770 t6 = GNUNET_malloc(sizeof(struct IPv6HttpAddress));
771 GNUNET_assert(t6 != NULL);
772 if (plugin->bind6_address != NULL)
774 if (0 == memcmp(&plugin->bind6_address->sin6_addr, &bnd_cmp6, sizeof (struct in6_addr)))
776 memcpy (&t6->ipv6_addr,
777 &((struct sockaddr_in6 *) addr)->sin6_addr,
778 sizeof (struct in6_addr));
779 t6->u6_port = htons (plugin->port_inbound);
780 plugin->env->notify_address(plugin->env->cls,PROTOCOL_PREFIX,t6,sizeof (struct IPv6HttpAddress) , GNUNET_TIME_UNIT_FOREVER_REL);
781 GNUNET_CONTAINER_DLL_insert(plugin->ipv6_addr_head,plugin->ipv6_addr_tail,t6);
787 memcpy (&t6->ipv6_addr,
788 &((struct sockaddr_in6 *) addr)->sin6_addr,
789 sizeof (struct in6_addr));
790 t6->u6_port = htons (plugin->port_inbound);
791 GNUNET_CONTAINER_DLL_insert(plugin->ipv6_addr_head,plugin->ipv6_addr_tail,t6);
792 plugin->env->notify_address(plugin->env->cls,PROTOCOL_PREFIX,t6,sizeof (struct IPv6HttpAddress) , GNUNET_TIME_UNIT_FOREVER_REL);
799 * External logging function for MHD
800 * @param arg arguments
801 * @param fmt format string
802 * @param ap list of arguments
804 void mhd_logger (void * arg, const char * fmt, va_list ap)
807 vsnprintf(text, 1024, fmt, ap);
809 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,"MHD: %s \n", text);
813 static void mhd_termination_cb (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
815 struct Session * ps = *httpSessionCache;
818 struct HTTP_PeerContext * pc = ps->peercontext;
820 if (connection==ps->recv_endpoint)
822 #if DEBUG_CONNECTIONS
823 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound connection from peer `%s' was terminated\n", ps, GNUNET_i2s(&pc->identity));
825 ps->recv_active = GNUNET_NO;
826 ps->recv_connected = GNUNET_NO;
827 ps->recv_endpoint = NULL;
829 if (connection==ps->send_endpoint)
832 ps->send_active = GNUNET_NO;
833 ps->send_connected = GNUNET_NO;
834 ps->send_endpoint = NULL;
835 #if DEBUG_CONNECTIONS
836 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound connection from peer `%s' was terminated\n", ps, GNUNET_i2s(&pc->identity));
840 /* if both connections disconnected, remove session */
841 if ((ps->send_connected == GNUNET_NO) && (ps->recv_connected == GNUNET_NO))
843 GNUNET_STATISTICS_update (pc->plugin->env->stats,
844 gettext_noop ("# HTTP inbound sessions for peers active"),
847 remove_session(pc,ps,GNUNET_YES,GNUNET_SYSERR);
852 * Callback called by MessageStreamTokenizer when a message has arrived
853 * @param cls current session as closure
854 * @param client clien
855 * @param message the message to be forwarded to transport service
858 static void mhd_write_mst_cb (void *cls,
860 const struct GNUNET_MessageHeader *message)
862 struct GNUNET_TIME_Relative delay;
863 struct Session *ps = cls;
864 GNUNET_assert(ps != NULL);
866 struct HTTP_PeerContext *pc = ps->peercontext;
867 GNUNET_assert(pc != NULL);
869 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
870 "Connection %X: Forwarding message to transport service, type %u and size %u from `%s' (`%s')\n",
872 ntohs(message->type),
873 ntohs(message->size),
874 GNUNET_i2s(&(ps->peercontext)->identity),http_plugin_address_to_string(NULL,ps->addr,ps->addrlen));
876 delay = pc->plugin->env->receive (ps->peercontext->plugin->env->cls,
882 if (pc->reset_task != GNUNET_SCHEDULER_NO_TASK)
883 GNUNET_SCHEDULER_cancel (pc->plugin->env->sched, pc->reset_task);
885 if (delay.rel_value > 0)
888 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Inbound quota management: delay next read for %llu ms \n", ps, delay.rel_value);
890 pc->reset_task = GNUNET_SCHEDULER_add_delayed (pc->plugin->env->sched, delay, &reset_inbound_quota_delay, pc);
895 * Check if incoming connection is accepted.
896 * NOTE: Here every connection is accepted
897 * @param cls plugin as closure
898 * @param addr address of incoming connection
899 * @param addr_len address length of incoming connection
900 * @return MHD_YES if connection is accepted, MHD_NO if connection is rejected
904 mhd_accept_cb (void *cls, const struct sockaddr *addr, socklen_t addr_len)
907 struct Plugin *plugin = cls;
909 /* Every connection is accepted, nothing more to do here */
915 * Callback called by MHD when it needs data to send
916 * @param cls current session
917 * @param pos position in buffer
918 * @param buf the buffer to write data to
919 * @param max max number of bytes available in buffer
920 * @return bytes written to buffer
923 mhd_send_callback (void *cls, uint64_t pos, char *buf, size_t max)
925 struct Session * ps = cls;
926 struct HTTP_PeerContext * pc;
927 struct HTTP_Message * msg;
930 GNUNET_assert (ps!=NULL);
932 pc = ps->peercontext;
933 msg = ps->pending_msgs_tail;
934 if (ps->send_force_disconnect==GNUNET_YES)
936 #if DEBUG_CONNECTIONS
937 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound forced to disconnect\n",ps);
944 if ((msg->size-msg->pos) <= max)
946 memcpy(buf,&msg->buf[msg->pos],(msg->size-msg->pos));
947 bytes_read = msg->size-msg->pos;
948 msg->pos+=(msg->size-msg->pos);
952 memcpy(buf,&msg->buf[msg->pos],max);
957 if (msg->pos==msg->size)
959 if (NULL!=msg->transmit_cont)
960 msg->transmit_cont (msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
961 ps->queue_length_cur -= msg->size;
962 remove_http_message(ps,msg);
965 #if DEBUG_CONNECTIONS
966 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: MHD has sent %u bytes\n", ps, bytes_read);
972 * Process GET or PUT request received via MHD. For
973 * GET, queue response that will send back our pending
974 * messages. For PUT, process incoming data and send
975 * to GNUnet core. In either case, check if a session
976 * already exists and create a new one if not.
979 mhd_access_cb (void *cls,
980 struct MHD_Connection *mhd_connection,
984 const char *upload_data,
985 size_t * upload_data_size, void **httpSessionCache)
987 struct Plugin *plugin = cls;
988 struct MHD_Response *response;
989 const union MHD_ConnectionInfo * conn_info;
991 struct sockaddr_in *addrin;
992 struct sockaddr_in6 *addrin6;
994 char address[INET6_ADDRSTRLEN+14];
995 struct GNUNET_PeerIdentity pi_in;
998 struct IPv4HttpAddress ipv4addr;
999 struct IPv6HttpAddress ipv6addr;
1001 struct HTTP_PeerContext *pc = NULL;
1002 struct Session *ps = NULL;
1003 struct Session *ps_tmp = NULL;
1005 int res = GNUNET_NO;
1006 int send_error_to_client;
1008 size_t addr_len = 0 ;
1010 GNUNET_assert(cls !=NULL);
1011 send_error_to_client = GNUNET_NO;
1013 if (NULL == *httpSessionCache)
1015 /* check url for peer identity , if invalid send HTTP 404*/
1016 size_t len = strlen(&url[1]);
1017 char * peer = GNUNET_malloc(104+1);
1019 if ((len>104) && (url[104]==';'))
1021 char * id = GNUNET_malloc((len-104)+1);
1022 strcpy(id,&url[105]);
1023 memcpy(peer,&url[1],103);
1025 id_num = strtoul ( id, NULL , 10);
1028 res = GNUNET_CRYPTO_hash_from_string (peer, &(pi_in.hashPubKey));
1030 if ( GNUNET_SYSERR == res )
1032 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
1033 res = MHD_queue_response (mhd_connection, MHD_HTTP_NOT_FOUND, response);
1034 MHD_destroy_response (response);
1035 #if DEBUG_CONNECTIONS
1037 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");
1039 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
1046 ps = *httpSessionCache;
1047 pc = ps->peercontext;
1050 if (NULL == *httpSessionCache)
1052 /* get peer context */
1053 pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &pi_in.hashPubKey);
1057 pc = GNUNET_malloc(sizeof (struct HTTP_PeerContext));
1058 pc->plugin = plugin;
1059 pc->session_id_counter=1;
1060 pc->last_session = NULL;
1061 memcpy(&pc->identity, &pi_in, sizeof(struct GNUNET_PeerIdentity));
1062 GNUNET_CONTAINER_multihashmap_put(plugin->peers, &pc->identity.hashPubKey, pc, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1063 GNUNET_STATISTICS_update (plugin->env->stats,
1064 gettext_noop ("# HTTP peers active"),
1069 conn_info = MHD_get_connection_info(mhd_connection, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
1070 /* Incoming IPv4 connection */
1071 if ( AF_INET == conn_info->client_addr->sin_family)
1073 addrin = conn_info->client_addr;
1074 inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
1075 memcpy(&ipv4addr.ipv4_addr,&(addrin->sin_addr),sizeof(struct in_addr));
1076 ipv4addr.u_port = addrin->sin_port;
1078 addr_len = sizeof(struct IPv4HttpAddress);
1080 /* Incoming IPv6 connection */
1081 if ( AF_INET6 == conn_info->client_addr->sin_family)
1083 addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
1084 inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
1085 memcpy(&ipv6addr.ipv6_addr,&(addrin6->sin6_addr),sizeof(struct in6_addr));
1086 ipv6addr.u6_port = addrin6->sin6_port;
1088 addr_len = sizeof(struct IPv6HttpAddress);
1091 GNUNET_assert (addr != NULL);
1092 GNUNET_assert (addr_len != 0);
1095 /* only inbound sessions here */
1098 while (ps_tmp!=NULL)
1100 if ((ps_tmp->direction==INBOUND) && (ps_tmp->session_id == id_num) && (id_num!=0))
1102 if ((ps_tmp->recv_force_disconnect!=GNUNET_YES) && (ps_tmp->send_force_disconnect!=GNUNET_YES))
1106 ps_tmp=ps_tmp->next;
1111 ps = GNUNET_malloc(sizeof (struct Session));
1112 ps->addr = GNUNET_malloc(addr_len);
1113 memcpy(ps->addr,addr,addr_len);
1114 ps->addrlen = addr_len;
1115 ps->direction=INBOUND;
1116 ps->pending_msgs_head = NULL;
1117 ps->pending_msgs_tail = NULL;
1118 ps->send_connected=GNUNET_NO;
1119 ps->send_active=GNUNET_NO;
1120 ps->recv_connected=GNUNET_NO;
1121 ps->recv_active=GNUNET_NO;
1123 ps->session_id =id_num;
1124 ps->queue_length_cur = 0;
1125 ps->queue_length_max = GNUNET_SERVER_MAX_MESSAGE_SIZE;
1126 ps->url = create_url (plugin, ps->addr, ps->addrlen, ps->session_id);
1127 GNUNET_CONTAINER_DLL_insert(pc->head,pc->tail,ps);
1128 GNUNET_STATISTICS_update (plugin->env->stats,
1129 gettext_noop ("# HTTP inbound sessions for peers active"),
1134 *httpSessionCache = ps;
1135 if (ps->msgtok==NULL)
1136 ps->msgtok = GNUNET_SERVER_mst_create (&mhd_write_mst_cb, ps);
1138 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: HTTP Daemon has new an incoming `%s' request from peer `%s' (`%s')\n",
1141 GNUNET_i2s(&pc->identity),
1142 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen));
1146 /* Is it a PUT or a GET request */
1147 if (0 == strcmp (MHD_HTTP_METHOD_PUT, method))
1149 if (ps->recv_force_disconnect == GNUNET_YES)
1151 #if DEBUG_CONNECTIONS
1152 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound connection was forced to disconnect\n",ps);
1154 ps->recv_active = GNUNET_NO;
1157 if ((*upload_data_size == 0) && (ps->recv_active==GNUNET_NO))
1159 ps->recv_endpoint = mhd_connection;
1160 ps->recv_connected = GNUNET_YES;
1161 ps->recv_active = GNUNET_YES;
1162 ps->recv_force_disconnect = GNUNET_NO;
1163 #if DEBUG_CONNECTIONS
1164 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound PUT connection connected\n",ps);
1169 /* Transmission of all data complete */
1170 if ((*upload_data_size == 0) && (ps->recv_active == GNUNET_YES))
1172 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
1173 res = MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
1174 #if DEBUG_CONNECTIONS
1175 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Sent HTTP/1.1: 200 OK as PUT Response\n",ps);
1177 MHD_destroy_response (response);
1178 ps->recv_active=GNUNET_NO;
1182 /* Recieving data */
1183 if ((*upload_data_size > 0) && (ps->recv_active == GNUNET_YES))
1185 if (pc->delay.rel_value == 0)
1188 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: PUT with %u bytes forwarded to MST\n", ps, *upload_data_size);
1190 res = GNUNET_SERVER_mst_receive(ps->msgtok, ps, upload_data, *upload_data_size, GNUNET_NO, GNUNET_NO);
1191 (*upload_data_size) = 0;
1196 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: no inbound bandwidth available! Next read was delayed for %llu ms\n", ps, ps->peercontext->delay.rel_value);
1204 if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
1206 if (ps->send_force_disconnect == GNUNET_YES)
1208 #if DEBUG_CONNECTIONS
1209 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound connection was forced to disconnect\n",ps);
1211 ps->send_active = GNUNET_NO;
1214 ps->send_connected = GNUNET_YES;
1215 ps->send_active = GNUNET_YES;
1216 ps->send_endpoint = mhd_connection;
1217 ps->send_force_disconnect = GNUNET_NO;
1218 #if DEBUG_CONNECTIONS
1219 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound GET connection connected\n",ps);
1221 response = MHD_create_response_from_callback(-1,32 * 1024, &mhd_send_callback, ps, NULL);
1222 res = MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
1223 MHD_destroy_response (response);
1230 * Function that queries MHD's select sets and
1231 * starts the task waiting for them.
1232 * @param plugin plugin
1233 * @param daemon_handle the MHD daemon handle
1234 * @return gnunet task identifier
1236 static GNUNET_SCHEDULER_TaskIdentifier
1237 http_server_daemon_prepare (struct Plugin *plugin , struct MHD_Daemon *daemon_handle)
1239 GNUNET_SCHEDULER_TaskIdentifier ret;
1243 struct GNUNET_NETWORK_FDSet *wrs;
1244 struct GNUNET_NETWORK_FDSet *wws;
1245 struct GNUNET_NETWORK_FDSet *wes;
1247 unsigned long long timeout;
1249 struct GNUNET_TIME_Relative tv;
1251 ret = GNUNET_SCHEDULER_NO_TASK;
1255 wrs = GNUNET_NETWORK_fdset_create ();
1256 wes = GNUNET_NETWORK_fdset_create ();
1257 wws = GNUNET_NETWORK_fdset_create ();
1259 GNUNET_assert (MHD_YES ==
1260 MHD_get_fdset (daemon_handle,
1265 haveto = MHD_get_timeout (daemon_handle, &timeout);
1266 if (haveto == MHD_YES)
1267 tv.rel_value = (uint64_t) timeout;
1269 tv = GNUNET_TIME_UNIT_SECONDS;
1270 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max + 1);
1271 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max + 1);
1272 GNUNET_NETWORK_fdset_copy_native (wes, &es, max + 1);
1273 if (daemon_handle == plugin->http_server_daemon_v4)
1275 if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1277 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v4);
1278 plugin->http_server_daemon_v4 = GNUNET_SCHEDULER_NO_TASK;
1281 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1282 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1283 GNUNET_SCHEDULER_NO_TASK,
1287 &http_server_daemon_v4_run,
1290 if (daemon_handle == plugin->http_server_daemon_v6)
1292 if (plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1294 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v6);
1295 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1298 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1299 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1300 GNUNET_SCHEDULER_NO_TASK,
1304 &http_server_daemon_v6_run,
1307 GNUNET_NETWORK_fdset_destroy (wrs);
1308 GNUNET_NETWORK_fdset_destroy (wws);
1309 GNUNET_NETWORK_fdset_destroy (wes);
1314 * Call MHD IPv4 to process pending requests and then go back
1315 * and schedule the next run.
1316 * @param cls plugin as closure
1317 * @param tc task context
1319 static void http_server_daemon_v4_run (void *cls,
1320 const struct GNUNET_SCHEDULER_TaskContext *tc)
1322 struct Plugin *plugin = cls;
1324 #if DEBUG_SCHEDULING
1325 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_READ_READY))
1326 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v4_run: GNUNET_SCHEDULER_REASON_READ_READY\n");
1327 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_WRITE_READY))
1328 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v4_run: GNUNET_SCHEDULER_REASON_WRITE_READY\n");
1329 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_TIMEOUT))
1330 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v4_run: GNUNET_SCHEDULER_REASON_TIMEOUT\n");
1331 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_STARTUP))
1332 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v4_run: GGNUNET_SCHEDULER_REASON_STARTUP\n");
1333 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1334 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v4_run: GGNUNET_SCHEDULER_REASON_SHUTDOWN\n");
1337 GNUNET_assert(cls !=NULL);
1338 plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;
1340 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1343 GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v4));
1344 plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
1349 * Call MHD IPv6 to process pending requests and then go back
1350 * and schedule the next run.
1351 * @param cls plugin as closure
1352 * @param tc task context
1354 static void http_server_daemon_v6_run (void *cls,
1355 const struct GNUNET_SCHEDULER_TaskContext *tc)
1357 struct Plugin *plugin = cls;
1359 #if DEBUG_SCHEDULING
1360 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_READ_READY))
1361 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v6_run: GNUNET_SCHEDULER_REASON_READ_READY\n");
1362 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_WRITE_READY))
1363 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v6_run: GNUNET_SCHEDULER_REASON_WRITE_READY\n");
1364 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_TIMEOUT))
1365 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v6_run: GNUNET_SCHEDULER_REASON_TIMEOUT\n");
1366 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_STARTUP))
1367 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v6_run: GGNUNET_SCHEDULER_REASON_STARTUP\n");
1368 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1369 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v6_run: GGNUNET_SCHEDULER_REASON_SHUTDOWN\n");
1372 GNUNET_assert(cls !=NULL);
1373 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1375 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1378 GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v6));
1379 plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
1382 static size_t curl_get_header_cb( void *ptr, size_t size, size_t nmemb, void *stream)
1384 struct Session * ps = stream;
1386 long http_result = 0;
1388 /* Getting last http result code */
1389 GNUNET_assert(NULL!=ps);
1390 if (ps->recv_connected==GNUNET_NO)
1392 res = curl_easy_getinfo(ps->recv_endpoint, CURLINFO_RESPONSE_CODE, &http_result);
1393 if (CURLE_OK == res)
1395 if (http_result == 200)
1397 ps->recv_connected = GNUNET_YES;
1398 ps->recv_active = GNUNET_YES;
1399 #if DEBUG_CONNECTIONS
1400 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: connected to recieve data\n",ps);
1402 // Calling send_check_connections again since receive is established
1403 send_check_connections (ps->peercontext->plugin, ps);
1410 size_t len = size * nmemb;
1412 if ((size * nmemb) < SIZE_MAX)
1413 tmp = GNUNET_malloc (len+1);
1415 if ((tmp != NULL) && (len > 0))
1417 memcpy(tmp,ptr,len);
1420 if (tmp[len-2] == 13)
1423 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Header: %s\n",ps,tmp);
1425 GNUNET_free_non_null (tmp);
1428 return size * nmemb;
1432 * Callback called by libcurl when new headers arrive
1433 * Used to get HTTP result for curl operations
1434 * @param ptr stream to read from
1435 * @param size size of one char element
1436 * @param nmemb number of char elements
1437 * @param stream closure set by user
1438 * @return bytes read by function
1441 static size_t curl_put_header_cb( void *ptr, size_t size, size_t nmemb, void *stream)
1443 struct Session * ps = stream;
1446 size_t len = size * nmemb;
1447 long http_result = 0;
1450 /* Getting last http result code */
1451 GNUNET_assert(NULL!=ps);
1452 res = curl_easy_getinfo(ps->send_endpoint, CURLINFO_RESPONSE_CODE, &http_result);
1453 if (CURLE_OK == res)
1455 if ((http_result == 100) && (ps->send_connected==GNUNET_NO))
1457 ps->send_connected = GNUNET_YES;
1458 ps->send_active = GNUNET_YES;
1459 #if DEBUG_CONNECTIONS
1460 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: connected to send data\n",ps);
1463 if ((http_result == 200) && (ps->send_connected==GNUNET_YES))
1465 ps->send_connected = GNUNET_NO;
1466 ps->send_active = GNUNET_NO;
1467 #if DEBUG_CONNECTIONS
1468 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: sending disconnected\n",ps);
1474 if ((size * nmemb) < SIZE_MAX)
1475 tmp = GNUNET_malloc (len+1);
1477 if ((tmp != NULL) && (len > 0))
1479 memcpy(tmp,ptr,len);
1482 if (tmp[len-2] == 13)
1487 GNUNET_free_non_null (tmp);
1489 return size * nmemb;
1493 * Callback method used with libcurl
1494 * Method is called when libcurl needs to read data during sending
1495 * @param stream pointer where to write data
1496 * @param size size of an individual element
1497 * @param nmemb count of elements that can be written to the buffer
1498 * @param ptr source pointer, passed to the libcurl handle
1499 * @return bytes written to stream
1501 static size_t curl_send_cb(void *stream, size_t size, size_t nmemb, void *ptr)
1503 struct Session * ps = ptr;
1504 struct HTTP_Message * msg = ps->pending_msgs_tail;
1508 if (ps->send_active == GNUNET_NO)
1510 return CURL_READFUNC_PAUSE;
1513 if ((ps->pending_msgs_tail == NULL) && (ps->send_active == GNUNET_YES))
1515 #if DEBUG_CONNECTIONS
1516 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: No Message to send, pausing connection\n",ps);
1518 ps->send_active = GNUNET_NO;
1519 return CURL_READFUNC_PAUSE;
1522 GNUNET_assert (msg!=NULL);
1525 if (msg->pos < msg->size)
1527 /* data fit in buffer */
1528 if ((msg->size - msg->pos) <= (size * nmemb))
1530 len = (msg->size - msg->pos);
1531 memcpy(stream, &msg->buf[msg->pos], len);
1538 memcpy(stream, &msg->buf[msg->pos], len);
1543 /* no data to send */
1549 if ( msg->pos == msg->size)
1551 #if DEBUG_CONNECTIONS
1552 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Message with %u bytes sent, removing message from queue \n",ps, msg->pos);
1554 /* Calling transmit continuation */
1555 if (NULL != ps->pending_msgs_tail->transmit_cont)
1556 msg->transmit_cont (ps->pending_msgs_tail->transmit_cont_cls,&(ps->peercontext)->identity,GNUNET_OK);
1557 ps->queue_length_cur -= msg->size;
1558 remove_http_message(ps, msg);
1563 static void curl_receive_mst_cb (void *cls,
1565 const struct GNUNET_MessageHeader *message)
1567 struct Session *ps = cls;
1568 struct GNUNET_TIME_Relative delay;
1569 GNUNET_assert(ps != NULL);
1571 struct HTTP_PeerContext *pc = ps->peercontext;
1572 GNUNET_assert(pc != NULL);
1574 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1575 "Connection %X: Forwarding message to transport service, type %u and size %u from `%s' (`%s')\n",
1577 ntohs(message->type),
1578 ntohs(message->size),
1579 GNUNET_i2s(&(pc->identity)),http_plugin_address_to_string(NULL,ps->addr,ps->addrlen));
1581 delay = pc->plugin->env->receive (pc->plugin->env->cls,
1588 if (pc->reset_task != GNUNET_SCHEDULER_NO_TASK)
1589 GNUNET_SCHEDULER_cancel (pc->plugin->env->sched, pc->reset_task);
1591 if (delay.rel_value > 0)
1594 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Inbound quota management: delay next read for %llu ms \n", ps, delay.abs_value);
1596 pc->reset_task = GNUNET_SCHEDULER_add_delayed (pc->plugin->env->sched, delay, &reset_inbound_quota_delay, pc);
1602 * Callback method used with libcurl
1603 * Method is called when libcurl needs to write data during sending
1604 * @param stream pointer where to write data
1605 * @param size size of an individual element
1606 * @param nmemb count of elements that can be written to the buffer
1607 * @param ptr destination pointer, passed to the libcurl handle
1608 * @return bytes read from stream
1610 static size_t curl_receive_cb( void *stream, size_t size, size_t nmemb, void *ptr)
1612 struct Session * ps = ptr;
1614 if (ps->peercontext->delay.rel_value > 0)
1617 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: no inbound bandwidth available! Next read was delayed for %llu ms\n", ps, ps->peercontext->delay.rel_value);
1622 #if DEBUG_CONNECTIONS
1623 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: %u bytes received\n",ps, size*nmemb);
1625 GNUNET_SERVER_mst_receive(ps->msgtok, ps, stream, size*nmemb, GNUNET_NO, GNUNET_NO);
1626 return (size * nmemb);
1630 static void curl_handle_finished (struct Plugin *plugin)
1632 struct Session *ps = NULL;
1633 struct HTTP_PeerContext *pc = NULL;
1634 struct CURLMsg *msg;
1635 struct HTTP_Message * cur_msg = NULL;
1643 msg = curl_multi_info_read (plugin->multi_handle, &msgs_in_queue);
1644 if ((msgs_in_queue == 0) || (msg == NULL))
1646 /* get session for affected curl handle */
1647 GNUNET_assert ( msg->easy_handle != NULL );
1648 curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &tmp);
1649 ps = (struct Session *) tmp;
1650 GNUNET_assert ( ps != NULL );
1651 pc = ps->peercontext;
1652 GNUNET_assert ( pc != NULL );
1657 if ( (msg->data.result != CURLE_OK) &&
1658 (msg->data.result != CURLE_GOT_NOTHING) )
1660 /* sending msg failed*/
1661 if (msg->easy_handle == ps->send_endpoint)
1663 #if DEBUG_CONNECTIONS
1664 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
1665 _("Connection %X: HTTP PUT to peer `%s' (`%s') failed: `%s' `%s'\n"),
1667 GNUNET_i2s(&pc->identity),
1668 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1669 "curl_multi_perform",
1670 curl_easy_strerror (msg->data.result));
1672 ps->send_connected = GNUNET_NO;
1673 ps->send_active = GNUNET_NO;
1674 curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint);
1675 //curl_easy_cleanup(ps->send_endpoint);
1676 //ps->send_endpoint=NULL;
1677 while (ps->pending_msgs_tail != NULL)
1679 cur_msg = ps->pending_msgs_tail;
1680 if ( NULL != cur_msg->transmit_cont)
1681 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
1682 ps->queue_length_cur -= cur_msg->size;
1683 remove_http_message(ps,cur_msg);
1686 /* GET connection failed */
1687 if (msg->easy_handle == ps->recv_endpoint)
1689 #if DEBUG_CONNECTIONS
1690 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
1691 _("Connection %X: HTTP GET to peer `%s' (`%s') failed: `%s' `%s'\n"),
1693 GNUNET_i2s(&pc->identity),
1694 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1695 "curl_multi_perform",
1696 curl_easy_strerror (msg->data.result));
1698 ps->recv_connected = GNUNET_NO;
1699 ps->recv_active = GNUNET_NO;
1700 curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint);
1701 //curl_easy_cleanup(ps->recv_endpoint);
1702 //ps->recv_endpoint=NULL;
1707 if (msg->easy_handle == ps->send_endpoint)
1709 GNUNET_assert (CURLE_OK == curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result));
1710 #if DEBUG_CONNECTIONS
1711 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1712 "Connection %X: HTTP PUT connection to peer `%s' (`%s') was closed with HTTP code %u\n",
1714 GNUNET_i2s(&pc->identity),
1715 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1718 /* Calling transmit continuation */
1719 while (ps->pending_msgs_tail != NULL)
1721 cur_msg = ps->pending_msgs_tail;
1722 if ( NULL != cur_msg->transmit_cont)
1724 /* HTTP 1xx : Last message before here was informational */
1725 if ((http_result >=100) && (http_result < 200))
1726 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
1727 /* HTTP 2xx: successful operations */
1728 if ((http_result >=200) && (http_result < 300))
1729 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
1730 /* HTTP 3xx..5xx: error */
1731 if ((http_result >=300) && (http_result < 600))
1732 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
1734 ps->queue_length_cur -= cur_msg->size;
1735 remove_http_message(ps,cur_msg);
1738 ps->send_connected = GNUNET_NO;
1739 ps->send_active = GNUNET_NO;
1740 curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint);
1741 //curl_easy_cleanup(ps->send_endpoint);
1742 //ps->send_endpoint =NULL;
1744 if (msg->easy_handle == ps->recv_endpoint)
1746 #if DEBUG_CONNECTIONS
1747 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1748 "Connection %X: HTTP GET connection to peer `%s' (`%s') was closed with HTTP code %u\n",
1750 GNUNET_i2s(&pc->identity),
1751 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1754 ps->recv_connected = GNUNET_NO;
1755 ps->recv_active = GNUNET_NO;
1756 curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint);
1757 //curl_easy_cleanup(ps->recv_endpoint);
1758 //ps->recv_endpoint=NULL;
1761 if ((ps->recv_connected == GNUNET_NO) && (ps->send_connected == GNUNET_NO))
1762 remove_session (pc, ps, GNUNET_YES, GNUNET_SYSERR);
1768 while ( (msgs_in_queue > 0) );
1773 * Task performing curl operations
1774 * @param cls plugin as closure
1775 * @param tc gnunet scheduler task context
1777 static void curl_perform (void *cls,
1778 const struct GNUNET_SCHEDULER_TaskContext *tc)
1780 struct Plugin *plugin = cls;
1781 static unsigned int handles_last_run;
1785 GNUNET_assert(cls !=NULL);
1787 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
1788 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1793 mret = curl_multi_perform (plugin->multi_handle, &running);
1794 if ((running < handles_last_run) && (running>0))
1795 curl_handle_finished(plugin);
1796 handles_last_run = running;
1798 while (mret == CURLM_CALL_MULTI_PERFORM);
1799 curl_schedule(plugin);
1804 * Function setting up file descriptors and scheduling task to run
1806 * @param plugin plugin as closure
1807 * @return GNUNET_SYSERR for hard failure, GNUNET_OK for ok
1809 static int curl_schedule(struct Plugin *plugin)
1815 struct GNUNET_NETWORK_FDSet *grs;
1816 struct GNUNET_NETWORK_FDSet *gws;
1820 /* Cancel previous scheduled task */
1821 if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
1823 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
1824 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
1831 mret = curl_multi_fdset (plugin->multi_handle, &rs, &ws, &es, &max);
1832 if (mret != CURLM_OK)
1834 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1835 _("%s failed at %s:%d: `%s'\n"),
1836 "curl_multi_fdset", __FILE__, __LINE__,
1837 curl_multi_strerror (mret));
1838 return GNUNET_SYSERR;
1840 mret = curl_multi_timeout (plugin->multi_handle, &to);
1841 if (mret != CURLM_OK)
1843 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1844 _("%s failed at %s:%d: `%s'\n"),
1845 "curl_multi_timeout", __FILE__, __LINE__,
1846 curl_multi_strerror (mret));
1847 return GNUNET_SYSERR;
1850 grs = GNUNET_NETWORK_fdset_create ();
1851 gws = GNUNET_NETWORK_fdset_create ();
1852 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
1853 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
1854 plugin->http_curl_task = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1855 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1856 GNUNET_SCHEDULER_NO_TASK,
1857 (to == -1) ? GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5) : GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, to),
1862 GNUNET_NETWORK_fdset_destroy (gws);
1863 GNUNET_NETWORK_fdset_destroy (grs);
1868 * Function to log curl debug messages with GNUNET_log
1869 * @param curl handle
1870 * @param type curl_infotype
1873 * @param cls closure
1876 int curl_logger (CURL * curl, curl_infotype type , char * data, size_t size , void * cls)
1879 if (type == CURLINFO_TEXT)
1882 memcpy(text,data,size);
1883 if (text[size-1] == '\n')
1888 text[size+1] = '\0';
1890 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"CURL: Connection %X - %s", cls, text);
1896 * Function setting up curl handle and selecting message to send
1898 * @param plugin plugin
1900 * @return GNUNET_SYSERR on failure, GNUNET_NO if connecting, GNUNET_YES if ok
1902 static int send_check_connections (struct Plugin *plugin, struct Session *ps)
1905 struct HTTP_Message * msg;
1907 struct GNUNET_TIME_Relative timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
1909 if (ps->direction == OUTBOUND)
1911 /* RECV DIRECTION */
1912 /* Check if session is connected to receive data, otherwise connect to peer */
1913 if (ps->recv_connected == GNUNET_NO)
1915 int fresh = GNUNET_NO;
1916 if (ps->recv_endpoint == NULL)
1919 ps->recv_endpoint = curl_easy_init();
1922 curl_easy_setopt(ps->recv_endpoint, CURLOPT_VERBOSE, 1L);
1923 curl_easy_setopt(ps->recv_endpoint, CURLOPT_DEBUGFUNCTION , &curl_logger);
1924 curl_easy_setopt(ps->recv_endpoint, CURLOPT_DEBUGDATA , ps->recv_endpoint);
1927 curl_easy_setopt (ps->recv_endpoint, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
1928 curl_easy_setopt(ps->recv_endpoint, CURLOPT_SSL_VERIFYPEER, 0);
1929 curl_easy_setopt(ps->recv_endpoint, CURLOPT_SSL_VERIFYHOST, 0);
1931 curl_easy_setopt(ps->recv_endpoint, CURLOPT_URL, ps->url);
1932 curl_easy_setopt(ps->recv_endpoint, CURLOPT_HEADERFUNCTION, &curl_get_header_cb);
1933 curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEHEADER, ps);
1934 curl_easy_setopt(ps->recv_endpoint, CURLOPT_READFUNCTION, curl_send_cb);
1935 curl_easy_setopt(ps->recv_endpoint, CURLOPT_READDATA, ps);
1936 curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEFUNCTION, curl_receive_cb);
1937 curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEDATA, ps);
1938 curl_easy_setopt(ps->recv_endpoint, CURLOPT_TIMEOUT, (long) timeout.rel_value);
1939 curl_easy_setopt(ps->recv_endpoint, CURLOPT_PRIVATE, ps);
1940 curl_easy_setopt(ps->recv_endpoint, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
1941 curl_easy_setopt(ps->recv_endpoint, CURLOPT_BUFFERSIZE, 2*GNUNET_SERVER_MAX_MESSAGE_SIZE);
1942 #if CURL_TCP_NODELAY
1943 curl_easy_setopt(ps->recv_endpoint, CURLOPT_TCP_NODELAY, 1);
1946 if (fresh==GNUNET_YES)
1948 mret = curl_multi_add_handle(plugin->multi_handle, ps->recv_endpoint);
1949 if (mret != CURLM_OK)
1951 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1952 _("Connection: %X: %s failed at %s:%d: `%s'\n"),
1954 "curl_multi_add_handle", __FILE__, __LINE__,
1955 curl_multi_strerror (mret));
1956 return GNUNET_SYSERR;
1959 if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
1961 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
1962 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
1964 plugin->http_curl_task = GNUNET_SCHEDULER_add_now (plugin->env->sched, &curl_perform, plugin);
1967 /* waiting for receive direction */
1968 if (ps->recv_connected==GNUNET_NO)
1971 /* SEND DIRECTION */
1972 /* Check if session is connected to send data, otherwise connect to peer */
1973 if ((ps->send_connected == GNUNET_YES) && (ps->send_endpoint!= NULL))
1975 if (ps->send_active == GNUNET_YES)
1977 #if DEBUG_CONNECTIONS
1978 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound active, enqueueing message\n",ps);
1982 if (ps->send_active == GNUNET_NO)
1984 #if DEBUG_CONNECTIONS
1985 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound paused, unpausing existing connection and enqueueing message\n",ps);
1987 if (CURLE_OK == curl_easy_pause(ps->send_endpoint,CURLPAUSE_CONT))
1989 ps->send_active=GNUNET_YES;
1990 if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
1992 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
1993 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
1995 plugin->http_curl_task = GNUNET_SCHEDULER_add_now (plugin->env->sched, &curl_perform, plugin);
1999 return GNUNET_SYSERR;
2002 /* not connected, initiate connection */
2003 if (ps->send_connected==GNUNET_NO)
2005 int fresh = GNUNET_NO;
2006 if (NULL == ps->send_endpoint)
2008 ps->send_endpoint = curl_easy_init();
2011 GNUNET_assert (ps->send_endpoint != NULL);
2012 GNUNET_assert (NULL != ps->pending_msgs_tail);
2013 #if DEBUG_CONNECTIONS
2014 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound not connected, initiating connection\n",ps);
2016 ps->send_active = GNUNET_NO;
2017 msg = ps->pending_msgs_tail;
2020 curl_easy_setopt(ps->send_endpoint, CURLOPT_VERBOSE, 1L);
2021 curl_easy_setopt(ps->send_endpoint, CURLOPT_DEBUGFUNCTION , &curl_logger);
2022 curl_easy_setopt(ps->send_endpoint, CURLOPT_DEBUGDATA , ps->send_endpoint);
2025 curl_easy_setopt (ps->send_endpoint, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
2026 curl_easy_setopt(ps->send_endpoint, CURLOPT_SSL_VERIFYPEER, 0);
2027 curl_easy_setopt(ps->send_endpoint, CURLOPT_SSL_VERIFYHOST, 0);
2029 curl_easy_setopt(ps->send_endpoint, CURLOPT_URL, ps->url);
2030 curl_easy_setopt(ps->send_endpoint, CURLOPT_PUT, 1L);
2031 curl_easy_setopt(ps->send_endpoint, CURLOPT_HEADERFUNCTION, &curl_put_header_cb);
2032 curl_easy_setopt(ps->send_endpoint, CURLOPT_WRITEHEADER, ps);
2033 curl_easy_setopt(ps->send_endpoint, CURLOPT_READFUNCTION, curl_send_cb);
2034 curl_easy_setopt(ps->send_endpoint, CURLOPT_READDATA, ps);
2035 curl_easy_setopt(ps->send_endpoint, CURLOPT_WRITEFUNCTION, curl_receive_cb);
2036 curl_easy_setopt(ps->send_endpoint, CURLOPT_READDATA, ps);
2037 curl_easy_setopt(ps->send_endpoint, CURLOPT_TIMEOUT, (long) timeout.rel_value);
2038 curl_easy_setopt(ps->send_endpoint, CURLOPT_PRIVATE, ps);
2039 curl_easy_setopt(ps->send_endpoint, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
2040 curl_easy_setopt(ps->send_endpoint, CURLOPT_BUFFERSIZE, 2 * GNUNET_SERVER_MAX_MESSAGE_SIZE);
2041 #if CURL_TCP_NODELAY
2042 curl_easy_setopt(ps->send_endpoint, CURLOPT_TCP_NODELAY, 1);
2045 if (fresh==GNUNET_YES)
2047 mret = curl_multi_add_handle(plugin->multi_handle, ps->send_endpoint);
2048 if (mret != CURLM_OK)
2050 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2051 _("Connection: %X: %s failed at %s:%d: `%s'\n"),
2053 "curl_multi_add_handle", __FILE__, __LINE__,
2054 curl_multi_strerror (mret));
2055 return GNUNET_SYSERR;
2059 if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
2061 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
2062 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
2064 plugin->http_curl_task = GNUNET_SCHEDULER_add_now (plugin->env->sched, &curl_perform, plugin);
2067 if (ps->direction == INBOUND)
2069 GNUNET_assert (NULL != ps->pending_msgs_tail);
2070 if ((ps->recv_connected==GNUNET_YES) && (ps->send_connected==GNUNET_YES) &&
2071 (ps->recv_force_disconnect==GNUNET_NO) && (ps->recv_force_disconnect==GNUNET_NO))
2074 return GNUNET_SYSERR;
2078 * select best session to transmit data to peer
2080 * @param pc peer context of target peer
2081 * @param addr address of target peer
2082 * @param addrlen address length
2083 * @param force_address does transport service enforce address?
2084 * @param session session passed by transport service
2085 * @return selected session
2088 static struct Session * send_select_session (struct HTTP_PeerContext *pc, const void * addr, size_t addrlen, int force_address, struct Session * session)
2090 struct Session * tmp = NULL;
2091 int addr_given = GNUNET_NO;
2093 if ((addr!=NULL) && (addrlen>0))
2094 addr_given = GNUNET_YES;
2096 if (force_address == GNUNET_YES)
2098 /* check session given as argument */
2099 if ((session != NULL) && (addr_given == GNUNET_YES))
2101 if (0 == memcmp(session->addr, addr, addrlen))
2103 /* connection can not be used, since it is disconnected */
2104 if ((session->recv_force_disconnect==GNUNET_NO) && (session->send_force_disconnect==GNUNET_NO))
2106 #if DEBUG_SESSION_SELECTION
2107 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using session passed by transport to send to forced address \n", session);
2113 /* check last session used */
2114 if ((pc->last_session != NULL)&& (addr_given == GNUNET_YES))
2116 if (0 == memcmp(pc->last_session->addr, addr, addrlen))
2118 /* connection can not be used, since it is disconnected */
2119 if ((pc->last_session->recv_force_disconnect==GNUNET_NO) && (pc->last_session->send_force_disconnect==GNUNET_NO))
2121 #if DEBUG_SESSION_SELECTION
2122 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using last session used to send to forced address \n", pc->last_session);
2124 return pc->last_session;
2128 /* find session in existing sessions */
2130 while ((tmp!=NULL) && (addr_given == GNUNET_YES))
2133 if (0 == memcmp(tmp->addr, addr, addrlen))
2135 /* connection can not be used, since it is disconnected */
2136 if ((tmp->recv_force_disconnect==GNUNET_NO) && (tmp->send_force_disconnect==GNUNET_NO))
2138 #if DEBUG_SESSION_SELECTION
2139 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using existing session to send to forced address \n", session);
2147 /* no session to use */
2150 if ((force_address == GNUNET_NO) || (force_address == GNUNET_SYSERR))
2152 /* check session given as argument */
2153 if (session != NULL)
2155 /* connection can not be used, since it is disconnected */
2156 if ((session->recv_force_disconnect==GNUNET_NO) && (session->send_force_disconnect==GNUNET_NO))
2158 #if DEBUG_SESSION_SELECTION
2159 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using session passed by transport to send not-forced address \n", session);
2165 /* check last session used */
2166 if (pc->last_session != NULL)
2168 /* connection can not be used, since it is disconnected */
2169 if ((pc->last_session->recv_force_disconnect==GNUNET_NO) && (pc->last_session->send_force_disconnect==GNUNET_NO))
2171 #if DEBUG_SESSION_SELECTION
2172 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using last session to send to not-forced address \n", pc->last_session);
2174 return pc->last_session;
2177 /* find session in existing sessions */
2181 /* connection can not be used, since it is disconnected */
2182 if ((tmp->recv_force_disconnect==GNUNET_NO) && (tmp->send_force_disconnect==GNUNET_NO))
2184 #if DEBUG_SESSION_SELECTION
2185 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using existing session to send to not-forced address \n", tmp);
2197 * Function that can be used by the transport service to transmit
2198 * a message using the plugin. Note that in the case of a
2199 * peer disconnecting, the continuation MUST be called
2200 * prior to the disconnect notification itself. This function
2201 * will be called with this peer's HELLO message to initiate
2202 * a fresh connection to another peer.
2204 * @param cls closure
2205 * @param target who should receive this message
2206 * @param msgbuf the message to transmit
2207 * @param msgbuf_size number of bytes in 'msgbuf'
2208 * @param priority how important is the message (most plugins will
2209 * ignore message priority and just FIFO)
2210 * @param to how long to wait at most for the transmission (does not
2211 * require plugins to discard the message after the timeout,
2212 * just advisory for the desired delay; most plugins will ignore
2214 * @param session which session must be used (or NULL for "any")
2215 * @param addr the address to use (can be NULL if the plugin
2216 * is "on its own" (i.e. re-use existing TCP connection))
2217 * @param addrlen length of the address in bytes
2218 * @param force_address GNUNET_YES if the plugin MUST use the given address,
2219 * GNUNET_NO means the plugin may use any other address and
2220 * GNUNET_SYSERR means that only reliable existing
2221 * bi-directional connections should be used (regardless
2223 * @param cont continuation to call once the message has
2224 * been transmitted (or if the transport is ready
2225 * for the next transmission call; or if the
2226 * peer disconnected...); can be NULL
2227 * @param cont_cls closure for cont
2228 * @return number of bytes used (on the physical network, with overheads);
2229 * -1 on hard errors (i.e. address invalid); 0 is a legal value
2230 * and does NOT mean that the message was not transmitted (DV)
2233 http_plugin_send (void *cls,
2234 const struct GNUNET_PeerIdentity *target,
2237 unsigned int priority,
2238 struct GNUNET_TIME_Relative to,
2239 struct Session *session,
2243 GNUNET_TRANSPORT_TransmitContinuation cont,
2246 struct Plugin *plugin = cls;
2247 struct HTTP_Message *msg;
2248 struct HTTP_PeerContext * pc;
2249 struct Session * ps = NULL;
2251 GNUNET_assert(cls !=NULL);
2255 if (force_address == GNUNET_YES)
2256 GNUNET_asprintf(&force, "forced addr.");
2257 if (force_address == GNUNET_NO)
2258 GNUNET_asprintf(&force, "any addr.");
2259 if (force_address == GNUNET_SYSERR)
2260 GNUNET_asprintf(&force,"reliable bi-direc. address addr.");
2262 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Transport tells me to send %u bytes to `%s' using %s (%s) and session: %X\n",
2266 http_plugin_address_to_string(NULL, addr, addrlen),
2272 pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &target->hashPubKey);
2276 pc = GNUNET_malloc(sizeof (struct HTTP_PeerContext));
2277 pc->plugin = plugin;
2278 pc->session_id_counter=1;
2279 pc->last_session = NULL;
2280 memcpy(&pc->identity, target, sizeof(struct GNUNET_PeerIdentity));
2281 GNUNET_CONTAINER_multihashmap_put(plugin->peers, &pc->identity.hashPubKey, pc, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
2282 GNUNET_STATISTICS_update (plugin->env->stats,
2283 gettext_noop ("# HTTP peers active"),
2288 ps = send_select_session (pc, addr, addrlen, force_address, session);
2290 /* session not existing, but address forced -> creating new session */
2293 if ((addr!=NULL) && (addrlen!=0))
2295 ps = GNUNET_malloc(sizeof (struct Session));
2296 #if DEBUG_SESSION_SELECTION
2297 if (force_address == GNUNET_YES)
2298 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection & forced address: creating new session %X to peer %s\n", ps, GNUNET_i2s(target));
2299 if (force_address != GNUNET_YES)
2300 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection: creating new session %X to peer %s\n", ps, GNUNET_i2s(target));
2302 if ((addrlen!=0) && (addr!=NULL))
2304 ps->addr = GNUNET_malloc(addrlen);
2305 memcpy(ps->addr,addr,addrlen);
2306 ps->addrlen = addrlen;
2313 ps->direction=OUTBOUND;
2314 ps->recv_connected = GNUNET_NO;
2315 ps->recv_force_disconnect = GNUNET_NO;
2316 ps->send_connected = GNUNET_NO;
2317 ps->send_force_disconnect = GNUNET_NO;
2318 ps->pending_msgs_head = NULL;
2319 ps->pending_msgs_tail = NULL;
2321 ps->session_id = pc->session_id_counter;
2322 ps->queue_length_cur = 0;
2323 ps->queue_length_max = GNUNET_SERVER_MAX_MESSAGE_SIZE;
2324 pc->session_id_counter++;
2325 ps->url = create_url (plugin, ps->addr, ps->addrlen, ps->session_id);
2326 if (ps->msgtok == NULL)
2327 ps->msgtok = GNUNET_SERVER_mst_create (&curl_receive_mst_cb, ps);
2328 GNUNET_CONTAINER_DLL_insert(pc->head,pc->tail,ps);
2329 GNUNET_STATISTICS_update (plugin->env->stats,
2330 gettext_noop ("# HTTP outbound sessions for peers active"),
2337 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing session found & and no address given: no way to send this message to peer `%s'!\n", GNUNET_i2s(target));
2339 return GNUNET_SYSERR;
2343 if (msgbuf_size >= (ps->queue_length_max - ps->queue_length_cur))
2345 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Queue %X full: %u bytes in queue available, message with %u is too big\n", ps, (ps->queue_length_max - ps->queue_length_cur), msgbuf_size);
2346 //return GNUNET_SYSERR;
2350 msg = GNUNET_malloc (sizeof (struct HTTP_Message) + msgbuf_size);
2352 msg->size = msgbuf_size;
2354 msg->buf = (char *) &msg[1];
2355 msg->transmit_cont = cont;
2356 msg->transmit_cont_cls = cont_cls;
2357 memcpy (msg->buf,msgbuf, msgbuf_size);
2359 GNUNET_CONTAINER_DLL_insert(ps->pending_msgs_head,ps->pending_msgs_tail,msg);
2360 ps->queue_length_cur += msgbuf_size;
2362 if (send_check_connections (plugin, ps) == GNUNET_SYSERR)
2363 return GNUNET_SYSERR;
2364 if (force_address != GNUNET_YES)
2365 pc->last_session = ps;
2367 if (pc->last_session==NULL)
2368 pc->last_session = ps;
2375 * Function that can be used to force the plugin to disconnect
2376 * from the given peer and cancel all previous transmissions
2377 * (and their continuationc).
2379 * @param cls closure
2380 * @param target peer from which to disconnect
2383 http_plugin_disconnect (void *cls,
2384 const struct GNUNET_PeerIdentity *target)
2388 struct Plugin *plugin = cls;
2389 struct HTTP_PeerContext *pc = NULL;
2390 struct Session *ps = NULL;
2391 //struct Session *tmp = NULL;
2393 pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &target->hashPubKey);
2400 /* Telling transport that session is getting disconnected */
2401 plugin->env->session_end(plugin, target, ps);
2402 if (ps->direction==OUTBOUND)
2404 if (ps->send_endpoint!=NULL)
2406 //GNUNET_assert(CURLM_OK == curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint));
2407 //curl_easy_cleanup(ps->send_endpoint);
2408 //ps->send_endpoint=NULL;
2409 ps->send_force_disconnect = GNUNET_YES;
2411 if (ps->recv_endpoint!=NULL)
2413 //GNUNET_assert(CURLM_OK == curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint));
2414 //curl_easy_cleanup(ps->recv_endpoint);
2415 //ps->recv_endpoint=NULL;
2416 ps->recv_force_disconnect = GNUNET_YES;
2420 if (ps->direction==INBOUND)
2422 ps->recv_force_disconnect = GNUNET_YES;
2423 ps->send_force_disconnect = GNUNET_YES;
2426 while (ps->pending_msgs_head!=NULL)
2428 remove_http_message(ps, ps->pending_msgs_head);
2430 ps->recv_active = GNUNET_NO;
2431 ps->send_active = GNUNET_NO;
2438 * Convert the transports address to a nice, human-readable
2441 * @param cls closure
2442 * @param type name of the transport that generated the address
2443 * @param addr one of the addresses of the host, NULL for the last address
2444 * the specific address format depends on the transport
2445 * @param addrlen length of the address
2446 * @param numeric should (IP) addresses be displayed in numeric form?
2447 * @param timeout after how long should we give up?
2448 * @param asc function to call on each string
2449 * @param asc_cls closure for asc
2452 http_plugin_address_pretty_printer (void *cls,
2457 struct GNUNET_TIME_Relative timeout,
2458 GNUNET_TRANSPORT_AddressStringCallback
2461 const struct IPv4HttpAddress *t4;
2462 const struct IPv6HttpAddress *t6;
2463 struct sockaddr_in a4;
2464 struct sockaddr_in6 a6;
2470 GNUNET_assert(cls !=NULL);
2471 if (addrlen == sizeof (struct IPv6HttpAddress))
2473 address = GNUNET_malloc (INET6_ADDRSTRLEN);
2475 a6.sin6_addr = t6->ipv6_addr;
2476 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
2477 port = ntohs(t6->u6_port);
2479 else if (addrlen == sizeof (struct IPv4HttpAddress))
2481 address = GNUNET_malloc (INET_ADDRSTRLEN);
2483 a4.sin_addr.s_addr = t4->ipv4_addr;
2484 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
2485 port = ntohs(t4->u_port);
2489 /* invalid address */
2490 GNUNET_break_op (0);
2491 asc (asc_cls, NULL);
2494 res = GNUNET_asprintf(&ret,"%s://%s:%u/", PROTOCOL_PREFIX, address, port);
2495 GNUNET_free (address);
2496 GNUNET_assert(res != 0);
2498 GNUNET_free_non_null (ret);
2504 * Another peer has suggested an address for this
2505 * peer and transport plugin. Check that this could be a valid
2506 * address. If so, consider adding it to the list
2509 * @param cls closure
2510 * @param addr pointer to the address
2511 * @param addrlen length of addr
2512 * @return GNUNET_OK if this is a plausible address for this peer
2516 http_plugin_address_suggested (void *cls,
2517 const void *addr, size_t addrlen)
2519 struct Plugin *plugin = cls;
2520 struct IPv4HttpAddress *v4;
2521 struct IPv6HttpAddress *v6;
2523 struct IPv4HttpAddress *tv4 = plugin->ipv4_addr_head;
2524 struct IPv6HttpAddress *tv6 = plugin->ipv6_addr_head;
2526 GNUNET_assert(cls !=NULL);
2527 if ((addrlen != sizeof (struct IPv4HttpAddress)) &&
2528 (addrlen != sizeof (struct IPv6HttpAddress)))
2530 return GNUNET_SYSERR;
2532 if (addrlen == sizeof (struct IPv4HttpAddress))
2534 v4 = (struct IPv4HttpAddress *) addr;
2536 if (plugin->bind4_address!=NULL)
2538 if (0 == memcmp (&plugin->bind4_address->sin_addr, &v4->ipv4_addr, sizeof(uint32_t)))
2541 return GNUNET_SYSERR;
2545 if (0==memcmp (&tv4->ipv4_addr, &v4->ipv4_addr, sizeof(uint32_t)))
2552 return GNUNET_SYSERR;
2554 if (addrlen == sizeof (struct IPv6HttpAddress))
2556 v6 = (struct IPv6HttpAddress *) addr;
2558 if (plugin->bind6_address!=NULL)
2560 if (0 == memcmp (&plugin->bind6_address->sin6_addr, &v6->ipv6_addr, sizeof(struct in6_addr)))
2563 return GNUNET_SYSERR;
2568 if (0 == memcmp (&tv6->ipv6_addr, &v6->ipv6_addr, sizeof(struct in6_addr)))
2575 return GNUNET_SYSERR;
2578 return GNUNET_SYSERR;
2583 * Function called for a quick conversion of the binary address to
2584 * a numeric address. Note that the caller must not free the
2585 * address and that the next call to this function is allowed
2586 * to override the address again.
2588 * @param cls closure
2589 * @param addr binary address
2590 * @param addrlen length of the address
2591 * @return string representing the same address
2594 http_plugin_address_to_string (void *cls,
2598 const struct IPv4HttpAddress *t4;
2599 const struct IPv6HttpAddress *t6;
2600 struct sockaddr_in a4;
2601 struct sockaddr_in6 a6;
2607 if (addrlen == sizeof (struct IPv6HttpAddress))
2609 address = GNUNET_malloc (INET6_ADDRSTRLEN);
2611 a6.sin6_addr = t6->ipv6_addr;
2612 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
2613 port = ntohs(t6->u6_port);
2615 else if (addrlen == sizeof (struct IPv4HttpAddress))
2617 address = GNUNET_malloc (INET_ADDRSTRLEN);
2619 a4.sin_addr.s_addr = t4->ipv4_addr;
2620 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
2621 port = ntohs(t4->u_port);
2625 /* invalid address */
2628 res = GNUNET_asprintf(&ret,"%s:%u",address,port);
2629 GNUNET_free (address);
2630 GNUNET_assert(res != 0);
2636 * Exit point from the plugin.
2639 LIBGNUNET_PLUGIN_TRANSPORT_DONE (void *cls)
2641 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
2642 struct Plugin *plugin = api->cls;
2644 struct IPv4HttpAddress * ipv4addr;
2645 struct IPv6HttpAddress * ipv6addr;
2646 GNUNET_assert(cls !=NULL);
2648 if (plugin->http_server_daemon_v4 != NULL)
2650 MHD_stop_daemon (plugin->http_server_daemon_v4);
2651 plugin->http_server_daemon_v4 = NULL;
2653 if (plugin->http_server_daemon_v6 != NULL)
2655 MHD_stop_daemon (plugin->http_server_daemon_v6);
2656 plugin->http_server_daemon_v6 = NULL;
2659 if ( plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
2661 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v4);
2662 plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;
2665 if ( plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
2667 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v6);
2668 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
2671 while (plugin->ipv4_addr_head!=NULL)
2673 ipv4addr = plugin->ipv4_addr_head;
2674 GNUNET_CONTAINER_DLL_remove(plugin->ipv4_addr_head,plugin->ipv4_addr_tail,ipv4addr);
2675 GNUNET_free(ipv4addr);
2678 while (plugin->ipv6_addr_head!=NULL)
2680 ipv6addr = plugin->ipv6_addr_head;
2681 GNUNET_CONTAINER_DLL_remove(plugin->ipv6_addr_head,plugin->ipv6_addr_tail,ipv6addr);
2682 GNUNET_free(ipv6addr);
2685 /* free all peer information */
2686 if (plugin->peers!=NULL)
2688 GNUNET_CONTAINER_multihashmap_iterate (plugin->peers,
2689 &remove_peer_context_Iterator,
2691 GNUNET_CONTAINER_multihashmap_destroy (plugin->peers);
2693 if (plugin->multi_handle!=NULL)
2695 mret = curl_multi_cleanup(plugin->multi_handle);
2697 if ( CURLM_OK != mret)
2698 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed\n");
2700 plugin->multi_handle = NULL;
2702 curl_global_cleanup();
2704 if ( plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
2706 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
2707 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
2710 GNUNET_free_non_null (plugin->bind4_address);
2711 GNUNET_free_non_null (plugin->bind6_address);
2712 GNUNET_free_non_null(plugin->bind_hostname);
2714 GNUNET_free_non_null (plugin->crypto_init);
2715 GNUNET_free_non_null (plugin->cert);
2716 GNUNET_free_non_null (plugin->key);
2718 GNUNET_free (plugin);
2721 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unload %s plugin complete...\n", PROTOCOL_PREFIX);
2728 load_certificate( const char * file )
2730 struct GNUNET_DISK_FileHandle * gn_file;
2735 if (0!=STAT(file, &fstat))
2737 text = GNUNET_malloc (fstat.st_size+1);
2738 gn_file = GNUNET_DISK_file_open(file,GNUNET_DISK_OPEN_READ, GNUNET_DISK_PERM_USER_READ);
2744 if (GNUNET_SYSERR == GNUNET_DISK_file_read(gn_file, text, fstat.st_size))
2747 GNUNET_DISK_file_close(gn_file);
2750 text[fstat.st_size] = '\0';
2751 GNUNET_DISK_file_close(gn_file);
2759 * Entry point for the plugin.
2762 LIBGNUNET_PLUGIN_TRANSPORT_INIT (void *cls)
2764 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
2765 struct Plugin *plugin;
2766 struct GNUNET_TRANSPORT_PluginFunctions *api;
2767 struct GNUNET_TIME_Relative gn_timeout;
2768 long long unsigned int port;
2769 char * component_name;
2771 char * key_file = NULL;
2772 char * cert_file = NULL;
2775 GNUNET_assert(cls !=NULL);
2777 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting %s plugin...\n", PROTOCOL_PREFIX);
2779 GNUNET_asprintf(&component_name,"transport-%s",PROTOCOL_PREFIX);
2781 plugin = GNUNET_malloc (sizeof (struct Plugin));
2782 plugin->stats = env->stats;
2784 plugin->peers = NULL;
2785 plugin->bind4_address = NULL;
2786 plugin->use_ipv6 = GNUNET_YES;
2787 plugin->use_ipv4 = GNUNET_YES;
2789 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
2791 api->send = &http_plugin_send;
2792 api->disconnect = &http_plugin_disconnect;
2793 api->address_pretty_printer = &http_plugin_address_pretty_printer;
2794 api->check_address = &http_plugin_address_suggested;
2795 api->address_to_string = &http_plugin_address_to_string;
2797 /* Hashing our identity to use it in URLs */
2798 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &plugin->my_ascii_hash_ident);
2801 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2802 component_name, "USE_IPv6"))
2804 plugin->use_ipv6 = GNUNET_CONFIGURATION_get_value_yesno (env->cfg,
2809 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2810 component_name, "USE_IPv4"))
2812 plugin->use_ipv4 = GNUNET_CONFIGURATION_get_value_yesno (env->cfg,
2813 component_name,"USE_IPv4");
2815 /* Reading port number from config file */
2817 GNUNET_CONFIGURATION_get_value_number (env->cfg,
2823 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2825 _("Require valid port number for transport plugin `%s' in configuration!\n"),
2827 GNUNET_free(component_name);
2828 LIBGNUNET_PLUGIN_TRANSPORT_DONE (api);
2832 /* Reading ipv4 addresse to bind to from config file */
2833 if ((plugin->use_ipv4==GNUNET_YES) && (GNUNET_CONFIGURATION_have_value (env->cfg,
2834 component_name, "BINDTO4")))
2836 GNUNET_break (GNUNET_OK ==
2837 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2840 &plugin->bind_hostname));
2841 plugin->bind4_address = GNUNET_malloc(sizeof(struct sockaddr_in));
2842 plugin->bind4_address->sin_family = AF_INET;
2843 plugin->bind4_address->sin_port = htons (port);
2845 if (plugin->bind_hostname!=NULL)
2847 if (inet_pton(AF_INET,plugin->bind_hostname, &plugin->bind4_address->sin_addr)<=0)
2849 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2851 _("Misconfigured address to bind to in configuration!\n"));
2852 GNUNET_free(plugin->bind4_address);
2853 GNUNET_free(plugin->bind_hostname);
2854 plugin->bind_hostname = NULL;
2855 plugin->bind4_address = NULL;
2860 /* Reading ipv4 addresse to bind to from config file */
2861 if ((plugin->use_ipv6==GNUNET_YES) && (GNUNET_CONFIGURATION_have_value (env->cfg,
2862 component_name, "BINDTO6")))
2864 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (env->cfg,
2867 &plugin->bind_hostname))
2869 plugin->bind6_address = GNUNET_malloc(sizeof(struct sockaddr_in6));
2870 plugin->bind6_address->sin6_family = AF_INET6;
2871 plugin->bind6_address->sin6_port = htons (port);
2872 if (plugin->bind_hostname!=NULL)
2874 if (inet_pton(AF_INET6,plugin->bind_hostname, &plugin->bind6_address->sin6_addr)<=0)
2876 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2878 _("Misconfigured address to bind to in configuration!\n"));
2879 GNUNET_free(plugin->bind6_address);
2880 GNUNET_free(plugin->bind_hostname);
2881 plugin->bind_hostname = NULL;
2882 plugin->bind6_address = NULL;
2889 /* Reading HTTPS crypto related configuration */
2890 /* Get crypto init string from config */
2891 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2892 "transport-https", "CRYPTO_INIT"))
2894 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2897 &plugin->crypto_init);
2901 GNUNET_asprintf(&plugin->crypto_init,"NORMAL");
2904 /* Get private key file from config */
2905 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2906 "transport-https", "KEY_FILE"))
2908 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2914 GNUNET_asprintf(&key_file,"https.key");
2916 /* Get private key file from config */
2917 if (GNUNET_CONFIGURATION_have_value (env->cfg,"transport-https", "CERT_FILE"))
2919 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2924 if (cert_file==NULL)
2925 GNUNET_asprintf(&cert_file,"https.cert");
2927 /* read key & certificates from file */
2928 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Loading TLS certificate `%s' `%s'\n", key_file, cert_file);
2930 plugin->key = load_certificate( key_file );
2931 plugin->cert = load_certificate( cert_file );
2933 if ((plugin->key==NULL) || (plugin->cert==NULL))
2937 GNUNET_asprintf(&cmd,"gnunet-transport-certificate-creation %s %s", key_file, cert_file);
2938 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No usable TLS certificate found, creating certificate \n");
2943 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2945 _("Could not create a new TLS certificate, shell script `%s' failed!\n"),cmd,
2947 GNUNET_free (key_file);
2948 GNUNET_free (cert_file);
2949 GNUNET_free (component_name);
2951 LIBGNUNET_PLUGIN_TRANSPORT_DONE(api);
2958 plugin->key = load_certificate( key_file );
2959 plugin->cert = load_certificate( cert_file );
2961 if ((plugin->key==NULL) || (plugin->cert==NULL))
2963 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2965 _("No usable TLS certificate found and creating one failed! \n"),
2967 GNUNET_free (key_file);
2968 GNUNET_free (cert_file);
2969 GNUNET_free (component_name);
2971 LIBGNUNET_PLUGIN_TRANSPORT_DONE(api);
2975 GNUNET_free (key_file);
2976 GNUNET_free (cert_file);
2978 GNUNET_assert((plugin->key!=NULL) && (plugin->cert!=NULL));
2979 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "TLS certificate loaded\n");
2982 GNUNET_assert ((port > 0) && (port <= 65535));
2983 plugin->port_inbound = port;
2984 gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
2985 unsigned int timeout = (gn_timeout.rel_value) / 1000;
2986 if ((plugin->http_server_daemon_v6 == NULL) && (plugin->use_ipv6 == GNUNET_YES) && (port != 0))
2988 struct sockaddr * tmp = (struct sockaddr *) plugin->bind6_address;
2989 plugin->http_server_daemon_v6 = MHD_start_daemon (
2999 plugin , &mhd_access_cb, plugin,
3000 MHD_OPTION_SOCK_ADDR, tmp,
3001 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 32,
3002 //MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 6,
3004 MHD_OPTION_HTTPS_PRIORITIES, plugin->crypto_init,
3005 MHD_OPTION_HTTPS_MEM_KEY, plugin->key,
3006 MHD_OPTION_HTTPS_MEM_CERT, plugin->cert,
3008 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) timeout,
3009 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (2 * GNUNET_SERVER_MAX_MESSAGE_SIZE),
3010 MHD_OPTION_NOTIFY_COMPLETED, &mhd_termination_cb, NULL,
3011 MHD_OPTION_EXTERNAL_LOGGER, mhd_logger, plugin->mhd_log,
3014 if ((plugin->http_server_daemon_v4 == NULL) && (plugin->use_ipv4 == GNUNET_YES) && (port != 0))
3016 plugin->http_server_daemon_v4 = MHD_start_daemon (
3026 plugin , &mhd_access_cb, plugin,
3027 MHD_OPTION_SOCK_ADDR, (struct sockaddr_in *)plugin->bind4_address,
3028 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 32,
3029 //MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 6,
3031 MHD_OPTION_HTTPS_PRIORITIES, plugin->crypto_init,
3032 MHD_OPTION_HTTPS_MEM_KEY, plugin->key,
3033 MHD_OPTION_HTTPS_MEM_CERT, plugin->cert,
3035 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) timeout,
3036 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (2 * GNUNET_SERVER_MAX_MESSAGE_SIZE),
3037 MHD_OPTION_NOTIFY_COMPLETED, &mhd_termination_cb, NULL,
3038 MHD_OPTION_EXTERNAL_LOGGER, mhd_logger, plugin->mhd_log,
3041 if (plugin->http_server_daemon_v4 != NULL)
3042 plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
3043 if (plugin->http_server_daemon_v6 != NULL)
3044 plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
3047 if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
3050 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 bound to %s with port %u\n",(plugin->bind_hostname!=NULL) ? plugin->bind_hostname : "every address",port);
3053 else if ((plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK) && (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK))
3056 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv6 bound to %s with port %u\n",(plugin->bind_hostname!=NULL) ? plugin->bind_hostname : "every address", port);
3059 else if ((plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK) && (plugin->http_server_task_v4 == GNUNET_SCHEDULER_NO_TASK))
3062 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 bound to %s with port %u\n",(plugin->bind_hostname!=NULL) ? plugin->bind_hostname : "every address", port);
3068 if ((plugin->use_ipv6 == GNUNET_YES) && (plugin->use_ipv4 == GNUNET_YES))
3069 GNUNET_asprintf(&tmp,"with IPv4 and IPv6 enabled");
3070 if ((plugin->use_ipv6 == GNUNET_NO) && (plugin->use_ipv4 == GNUNET_YES))
3071 GNUNET_asprintf(&tmp,"with IPv4 enabled");
3072 if ((plugin->use_ipv6 == GNUNET_YES) && (plugin->use_ipv4 == GNUNET_NO))
3073 GNUNET_asprintf(&tmp,"with IPv6 enabled");
3074 if ((plugin->use_ipv6 == GNUNET_NO) && (plugin->use_ipv4 == GNUNET_NO))
3075 GNUNET_asprintf(&tmp,"with NO IP PROTOCOL enabled");
3076 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,_("HTTP Server with %s could not be started on port %u! %s plugin failed!\n"),tmp, port, PROTOCOL_PREFIX);
3078 GNUNET_free (component_name);
3079 LIBGNUNET_PLUGIN_TRANSPORT_DONE (api);
3083 /* Initializing cURL */
3084 curl_global_init(CURL_GLOBAL_ALL);
3085 plugin->multi_handle = curl_multi_init();
3087 if ( NULL == plugin->multi_handle )
3089 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
3091 _("Could not initialize curl multi handle, failed to start %s plugin!\n"),
3093 GNUNET_free(component_name);
3094 LIBGNUNET_PLUGIN_TRANSPORT_DONE (api);
3098 plugin->peers = GNUNET_CONTAINER_multihashmap_create (10);
3099 GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
3101 GNUNET_free(component_name);
3105 /* end of plugin_transport_http.c */