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/gnunet_transport_plugin.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 "gnunet_transport_plugin.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->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 (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->http_server_task_v4);
1278 plugin->http_server_daemon_v4 = GNUNET_SCHEDULER_NO_TASK;
1281 ret = GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1282 GNUNET_SCHEDULER_NO_TASK,
1286 &http_server_daemon_v4_run,
1289 if (daemon_handle == plugin->http_server_daemon_v6)
1291 if (plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1293 GNUNET_SCHEDULER_cancel(plugin->http_server_task_v6);
1294 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1297 ret = GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1298 GNUNET_SCHEDULER_NO_TASK,
1302 &http_server_daemon_v6_run,
1305 GNUNET_NETWORK_fdset_destroy (wrs);
1306 GNUNET_NETWORK_fdset_destroy (wws);
1307 GNUNET_NETWORK_fdset_destroy (wes);
1312 * Call MHD IPv4 to process pending requests and then go back
1313 * and schedule the next run.
1314 * @param cls plugin as closure
1315 * @param tc task context
1317 static void http_server_daemon_v4_run (void *cls,
1318 const struct GNUNET_SCHEDULER_TaskContext *tc)
1320 struct Plugin *plugin = cls;
1322 #if DEBUG_SCHEDULING
1323 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_READ_READY))
1324 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v4_run: GNUNET_SCHEDULER_REASON_READ_READY\n");
1325 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_WRITE_READY))
1326 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v4_run: GNUNET_SCHEDULER_REASON_WRITE_READY\n");
1327 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_TIMEOUT))
1328 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v4_run: GNUNET_SCHEDULER_REASON_TIMEOUT\n");
1329 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_STARTUP))
1330 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v4_run: GGNUNET_SCHEDULER_REASON_STARTUP\n");
1331 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1332 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v4_run: GGNUNET_SCHEDULER_REASON_SHUTDOWN\n");
1335 GNUNET_assert(cls !=NULL);
1336 plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;
1338 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1341 GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v4));
1342 plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
1347 * Call MHD IPv6 to process pending requests and then go back
1348 * and schedule the next run.
1349 * @param cls plugin as closure
1350 * @param tc task context
1352 static void http_server_daemon_v6_run (void *cls,
1353 const struct GNUNET_SCHEDULER_TaskContext *tc)
1355 struct Plugin *plugin = cls;
1357 #if DEBUG_SCHEDULING
1358 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_READ_READY))
1359 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v6_run: GNUNET_SCHEDULER_REASON_READ_READY\n");
1360 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_WRITE_READY))
1361 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v6_run: GNUNET_SCHEDULER_REASON_WRITE_READY\n");
1362 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_TIMEOUT))
1363 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v6_run: GNUNET_SCHEDULER_REASON_TIMEOUT\n");
1364 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_STARTUP))
1365 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v6_run: GGNUNET_SCHEDULER_REASON_STARTUP\n");
1366 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1367 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"http_server_daemon_v6_run: GGNUNET_SCHEDULER_REASON_SHUTDOWN\n");
1370 GNUNET_assert(cls !=NULL);
1371 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1373 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1376 GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v6));
1377 plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
1380 static size_t curl_get_header_cb( void *ptr, size_t size, size_t nmemb, void *stream)
1382 struct Session * ps = stream;
1384 long http_result = 0;
1386 /* Getting last http result code */
1387 GNUNET_assert(NULL!=ps);
1388 if (ps->recv_connected==GNUNET_NO)
1390 res = curl_easy_getinfo(ps->recv_endpoint, CURLINFO_RESPONSE_CODE, &http_result);
1391 if (CURLE_OK == res)
1393 if (http_result == 200)
1395 ps->recv_connected = GNUNET_YES;
1396 ps->recv_active = GNUNET_YES;
1397 #if DEBUG_CONNECTIONS
1398 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: connected to recieve data\n",ps);
1400 // Calling send_check_connections again since receive is established
1401 send_check_connections (ps->peercontext->plugin, ps);
1408 size_t len = size * nmemb;
1410 if ((size * nmemb) < SIZE_MAX)
1411 tmp = GNUNET_malloc (len+1);
1413 if ((tmp != NULL) && (len > 0))
1415 memcpy(tmp,ptr,len);
1418 if (tmp[len-2] == 13)
1421 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Header: %s\n",ps,tmp);
1423 GNUNET_free_non_null (tmp);
1426 return size * nmemb;
1430 * Callback called by libcurl when new headers arrive
1431 * Used to get HTTP result for curl operations
1432 * @param ptr stream to read from
1433 * @param size size of one char element
1434 * @param nmemb number of char elements
1435 * @param stream closure set by user
1436 * @return bytes read by function
1439 static size_t curl_put_header_cb( void *ptr, size_t size, size_t nmemb, void *stream)
1441 struct Session * ps = stream;
1444 size_t len = size * nmemb;
1445 long http_result = 0;
1448 /* Getting last http result code */
1449 GNUNET_assert(NULL!=ps);
1450 res = curl_easy_getinfo(ps->send_endpoint, CURLINFO_RESPONSE_CODE, &http_result);
1451 if (CURLE_OK == res)
1453 if ((http_result == 100) && (ps->send_connected==GNUNET_NO))
1455 ps->send_connected = GNUNET_YES;
1456 ps->send_active = GNUNET_YES;
1457 #if DEBUG_CONNECTIONS
1458 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: connected to send data\n",ps);
1461 if ((http_result == 200) && (ps->send_connected==GNUNET_YES))
1463 ps->send_connected = GNUNET_NO;
1464 ps->send_active = GNUNET_NO;
1465 #if DEBUG_CONNECTIONS
1466 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: sending disconnected\n",ps);
1472 if ((size * nmemb) < SIZE_MAX)
1473 tmp = GNUNET_malloc (len+1);
1475 if ((tmp != NULL) && (len > 0))
1477 memcpy(tmp,ptr,len);
1480 if (tmp[len-2] == 13)
1485 GNUNET_free_non_null (tmp);
1487 return size * nmemb;
1491 * Callback method used with libcurl
1492 * Method is called when libcurl needs to read data during sending
1493 * @param stream pointer where to write data
1494 * @param size size of an individual element
1495 * @param nmemb count of elements that can be written to the buffer
1496 * @param ptr source pointer, passed to the libcurl handle
1497 * @return bytes written to stream
1499 static size_t curl_send_cb(void *stream, size_t size, size_t nmemb, void *ptr)
1501 struct Session * ps = ptr;
1502 struct HTTP_Message * msg = ps->pending_msgs_tail;
1506 if (ps->send_active == GNUNET_NO)
1508 return CURL_READFUNC_PAUSE;
1511 if ((ps->pending_msgs_tail == NULL) && (ps->send_active == GNUNET_YES))
1513 #if DEBUG_CONNECTIONS
1514 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: No Message to send, pausing connection\n",ps);
1516 ps->send_active = GNUNET_NO;
1517 return CURL_READFUNC_PAUSE;
1520 GNUNET_assert (msg!=NULL);
1523 if (msg->pos < msg->size)
1525 /* data fit in buffer */
1526 if ((msg->size - msg->pos) <= (size * nmemb))
1528 len = (msg->size - msg->pos);
1529 memcpy(stream, &msg->buf[msg->pos], len);
1536 memcpy(stream, &msg->buf[msg->pos], len);
1541 /* no data to send */
1547 if ( msg->pos == msg->size)
1549 #if DEBUG_CONNECTIONS
1550 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Message with %u bytes sent, removing message from queue \n",ps, msg->pos);
1552 /* Calling transmit continuation */
1553 if (NULL != ps->pending_msgs_tail->transmit_cont)
1554 msg->transmit_cont (ps->pending_msgs_tail->transmit_cont_cls,&(ps->peercontext)->identity,GNUNET_OK);
1555 ps->queue_length_cur -= msg->size;
1556 remove_http_message(ps, msg);
1561 static void curl_receive_mst_cb (void *cls,
1563 const struct GNUNET_MessageHeader *message)
1565 struct Session *ps = cls;
1566 struct GNUNET_TIME_Relative delay;
1567 GNUNET_assert(ps != NULL);
1569 struct HTTP_PeerContext *pc = ps->peercontext;
1570 GNUNET_assert(pc != NULL);
1572 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1573 "Connection %X: Forwarding message to transport service, type %u and size %u from `%s' (`%s')\n",
1575 ntohs(message->type),
1576 ntohs(message->size),
1577 GNUNET_i2s(&(pc->identity)),http_plugin_address_to_string(NULL,ps->addr,ps->addrlen));
1579 delay = pc->plugin->env->receive (pc->plugin->env->cls,
1586 if (pc->reset_task != GNUNET_SCHEDULER_NO_TASK)
1587 GNUNET_SCHEDULER_cancel (pc->reset_task);
1589 if (delay.rel_value > 0)
1592 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Inbound quota management: delay next read for %llu ms \n", ps, delay.rel_value);
1594 pc->reset_task = GNUNET_SCHEDULER_add_delayed (delay, &reset_inbound_quota_delay, pc);
1600 * Callback method used with libcurl
1601 * Method is called when libcurl needs to write data during sending
1602 * @param stream pointer where to write data
1603 * @param size size of an individual element
1604 * @param nmemb count of elements that can be written to the buffer
1605 * @param ptr destination pointer, passed to the libcurl handle
1606 * @return bytes read from stream
1608 static size_t curl_receive_cb( void *stream, size_t size, size_t nmemb, void *ptr)
1610 struct Session * ps = ptr;
1612 if (ps->peercontext->delay.rel_value > 0)
1615 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);
1620 #if DEBUG_CONNECTIONS
1621 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: %u bytes received\n",ps, size*nmemb);
1623 GNUNET_SERVER_mst_receive(ps->msgtok, ps, stream, size*nmemb, GNUNET_NO, GNUNET_NO);
1624 return (size * nmemb);
1628 static void curl_handle_finished (struct Plugin *plugin)
1630 struct Session *ps = NULL;
1631 struct HTTP_PeerContext *pc = NULL;
1632 struct CURLMsg *msg;
1633 struct HTTP_Message * cur_msg = NULL;
1641 msg = curl_multi_info_read (plugin->multi_handle, &msgs_in_queue);
1642 if ((msgs_in_queue == 0) || (msg == NULL))
1644 /* get session for affected curl handle */
1645 GNUNET_assert ( msg->easy_handle != NULL );
1646 curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &tmp);
1647 ps = (struct Session *) tmp;
1648 GNUNET_assert ( ps != NULL );
1649 pc = ps->peercontext;
1650 GNUNET_assert ( pc != NULL );
1655 if ( (msg->data.result != CURLE_OK) &&
1656 (msg->data.result != CURLE_GOT_NOTHING) )
1658 /* sending msg failed*/
1659 if (msg->easy_handle == ps->send_endpoint)
1661 #if DEBUG_CONNECTIONS
1662 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
1663 _("Connection %X: HTTP PUT to peer `%s' (`%s') failed: `%s' `%s'\n"),
1665 GNUNET_i2s(&pc->identity),
1666 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1667 "curl_multi_perform",
1668 curl_easy_strerror (msg->data.result));
1670 ps->send_connected = GNUNET_NO;
1671 ps->send_active = GNUNET_NO;
1672 curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint);
1673 //curl_easy_cleanup(ps->send_endpoint);
1674 //ps->send_endpoint=NULL;
1675 while (ps->pending_msgs_tail != NULL)
1677 cur_msg = ps->pending_msgs_tail;
1678 if ( NULL != cur_msg->transmit_cont)
1679 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
1680 ps->queue_length_cur -= cur_msg->size;
1681 remove_http_message(ps,cur_msg);
1684 /* GET connection failed */
1685 if (msg->easy_handle == ps->recv_endpoint)
1687 #if DEBUG_CONNECTIONS
1688 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
1689 _("Connection %X: HTTP GET to peer `%s' (`%s') failed: `%s' `%s'\n"),
1691 GNUNET_i2s(&pc->identity),
1692 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1693 "curl_multi_perform",
1694 curl_easy_strerror (msg->data.result));
1696 ps->recv_connected = GNUNET_NO;
1697 ps->recv_active = GNUNET_NO;
1698 curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint);
1699 //curl_easy_cleanup(ps->recv_endpoint);
1700 //ps->recv_endpoint=NULL;
1705 if (msg->easy_handle == ps->send_endpoint)
1707 GNUNET_assert (CURLE_OK == curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result));
1708 #if DEBUG_CONNECTIONS
1709 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1710 "Connection %X: HTTP PUT connection to peer `%s' (`%s') was closed with HTTP code %u\n",
1712 GNUNET_i2s(&pc->identity),
1713 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1716 /* Calling transmit continuation */
1717 while (ps->pending_msgs_tail != NULL)
1719 cur_msg = ps->pending_msgs_tail;
1720 if ( NULL != cur_msg->transmit_cont)
1722 /* HTTP 1xx : Last message before here was informational */
1723 if ((http_result >=100) && (http_result < 200))
1724 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
1725 /* HTTP 2xx: successful operations */
1726 if ((http_result >=200) && (http_result < 300))
1727 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
1728 /* HTTP 3xx..5xx: error */
1729 if ((http_result >=300) && (http_result < 600))
1730 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
1732 ps->queue_length_cur -= cur_msg->size;
1733 remove_http_message(ps,cur_msg);
1736 ps->send_connected = GNUNET_NO;
1737 ps->send_active = GNUNET_NO;
1738 curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint);
1739 //curl_easy_cleanup(ps->send_endpoint);
1740 //ps->send_endpoint =NULL;
1742 if (msg->easy_handle == ps->recv_endpoint)
1744 #if DEBUG_CONNECTIONS
1745 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1746 "Connection %X: HTTP GET connection to peer `%s' (`%s') was closed with HTTP code %u\n",
1748 GNUNET_i2s(&pc->identity),
1749 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1752 ps->recv_connected = GNUNET_NO;
1753 ps->recv_active = GNUNET_NO;
1754 curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint);
1755 //curl_easy_cleanup(ps->recv_endpoint);
1756 //ps->recv_endpoint=NULL;
1759 if ((ps->recv_connected == GNUNET_NO) && (ps->send_connected == GNUNET_NO))
1760 remove_session (pc, ps, GNUNET_YES, GNUNET_SYSERR);
1766 while ( (msgs_in_queue > 0) );
1771 * Task performing curl operations
1772 * @param cls plugin as closure
1773 * @param tc gnunet scheduler task context
1775 static void curl_perform (void *cls,
1776 const struct GNUNET_SCHEDULER_TaskContext *tc)
1778 struct Plugin *plugin = cls;
1779 static unsigned int handles_last_run;
1783 GNUNET_assert(cls !=NULL);
1785 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
1786 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1791 mret = curl_multi_perform (plugin->multi_handle, &running);
1792 if ((running < handles_last_run) && (running>0))
1793 curl_handle_finished(plugin);
1794 handles_last_run = running;
1796 while (mret == CURLM_CALL_MULTI_PERFORM);
1797 curl_schedule(plugin);
1802 * Function setting up file descriptors and scheduling task to run
1804 * @param plugin plugin as closure
1805 * @return GNUNET_SYSERR for hard failure, GNUNET_OK for ok
1807 static int curl_schedule(struct Plugin *plugin)
1813 struct GNUNET_NETWORK_FDSet *grs;
1814 struct GNUNET_NETWORK_FDSet *gws;
1818 /* Cancel previous scheduled task */
1819 if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
1821 GNUNET_SCHEDULER_cancel(plugin->http_curl_task);
1822 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
1829 mret = curl_multi_fdset (plugin->multi_handle, &rs, &ws, &es, &max);
1830 if (mret != CURLM_OK)
1832 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1833 _("%s failed at %s:%d: `%s'\n"),
1834 "curl_multi_fdset", __FILE__, __LINE__,
1835 curl_multi_strerror (mret));
1836 return GNUNET_SYSERR;
1838 mret = curl_multi_timeout (plugin->multi_handle, &to);
1839 if (mret != CURLM_OK)
1841 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1842 _("%s failed at %s:%d: `%s'\n"),
1843 "curl_multi_timeout", __FILE__, __LINE__,
1844 curl_multi_strerror (mret));
1845 return GNUNET_SYSERR;
1848 grs = GNUNET_NETWORK_fdset_create ();
1849 gws = GNUNET_NETWORK_fdset_create ();
1850 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
1851 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
1852 plugin->http_curl_task = GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1853 GNUNET_SCHEDULER_NO_TASK,
1854 (to == -1) ? GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5) : GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, to),
1859 GNUNET_NETWORK_fdset_destroy (gws);
1860 GNUNET_NETWORK_fdset_destroy (grs);
1865 * Function to log curl debug messages with GNUNET_log
1866 * @param curl handle
1867 * @param type curl_infotype
1870 * @param cls closure
1873 int curl_logger (CURL * curl, curl_infotype type , char * data, size_t size , void * cls)
1876 if (type == CURLINFO_TEXT)
1879 memcpy(text,data,size);
1880 if (text[size-1] == '\n')
1885 text[size+1] = '\0';
1887 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"CURL: Connection %X - %s", cls, text);
1893 * Function setting up curl handle and selecting message to send
1895 * @param plugin plugin
1897 * @return GNUNET_SYSERR on failure, GNUNET_NO if connecting, GNUNET_YES if ok
1899 static int send_check_connections (struct Plugin *plugin, struct Session *ps)
1902 struct HTTP_Message * msg;
1904 struct GNUNET_TIME_Relative timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
1906 if (ps->direction == OUTBOUND)
1908 /* RECV DIRECTION */
1909 /* Check if session is connected to receive data, otherwise connect to peer */
1910 if (ps->recv_connected == GNUNET_NO)
1912 int fresh = GNUNET_NO;
1913 if (ps->recv_endpoint == NULL)
1916 ps->recv_endpoint = curl_easy_init();
1919 curl_easy_setopt(ps->recv_endpoint, CURLOPT_VERBOSE, 1L);
1920 curl_easy_setopt(ps->recv_endpoint, CURLOPT_DEBUGFUNCTION , &curl_logger);
1921 curl_easy_setopt(ps->recv_endpoint, CURLOPT_DEBUGDATA , ps->recv_endpoint);
1924 curl_easy_setopt (ps->recv_endpoint, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
1925 curl_easy_setopt(ps->recv_endpoint, CURLOPT_SSL_VERIFYPEER, 0);
1926 curl_easy_setopt(ps->recv_endpoint, CURLOPT_SSL_VERIFYHOST, 0);
1928 curl_easy_setopt(ps->recv_endpoint, CURLOPT_URL, ps->url);
1929 curl_easy_setopt(ps->recv_endpoint, CURLOPT_HEADERFUNCTION, &curl_get_header_cb);
1930 curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEHEADER, ps);
1931 curl_easy_setopt(ps->recv_endpoint, CURLOPT_READFUNCTION, curl_send_cb);
1932 curl_easy_setopt(ps->recv_endpoint, CURLOPT_READDATA, ps);
1933 curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEFUNCTION, curl_receive_cb);
1934 curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEDATA, ps);
1935 curl_easy_setopt(ps->recv_endpoint, CURLOPT_TIMEOUT, (long) timeout.rel_value);
1936 curl_easy_setopt(ps->recv_endpoint, CURLOPT_PRIVATE, ps);
1937 curl_easy_setopt(ps->recv_endpoint, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
1938 curl_easy_setopt(ps->recv_endpoint, CURLOPT_BUFFERSIZE, 2*GNUNET_SERVER_MAX_MESSAGE_SIZE);
1939 #if CURL_TCP_NODELAY
1940 curl_easy_setopt(ps->recv_endpoint, CURLOPT_TCP_NODELAY, 1);
1943 if (fresh==GNUNET_YES)
1945 mret = curl_multi_add_handle(plugin->multi_handle, ps->recv_endpoint);
1946 if (mret != CURLM_OK)
1948 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1949 _("Connection: %X: %s failed at %s:%d: `%s'\n"),
1951 "curl_multi_add_handle", __FILE__, __LINE__,
1952 curl_multi_strerror (mret));
1953 return GNUNET_SYSERR;
1956 if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
1958 GNUNET_SCHEDULER_cancel(plugin->http_curl_task);
1959 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
1961 plugin->http_curl_task = GNUNET_SCHEDULER_add_now (&curl_perform, plugin);
1964 /* waiting for receive direction */
1965 if (ps->recv_connected==GNUNET_NO)
1968 /* SEND DIRECTION */
1969 /* Check if session is connected to send data, otherwise connect to peer */
1970 if ((ps->send_connected == GNUNET_YES) && (ps->send_endpoint!= NULL))
1972 if (ps->send_active == GNUNET_YES)
1974 #if DEBUG_CONNECTIONS
1975 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound active, enqueueing message\n",ps);
1979 if (ps->send_active == GNUNET_NO)
1981 #if DEBUG_CONNECTIONS
1982 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound paused, unpausing existing connection and enqueueing message\n",ps);
1984 if (CURLE_OK == curl_easy_pause(ps->send_endpoint,CURLPAUSE_CONT))
1986 ps->send_active=GNUNET_YES;
1987 if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
1989 GNUNET_SCHEDULER_cancel(plugin->http_curl_task);
1990 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
1992 plugin->http_curl_task = GNUNET_SCHEDULER_add_now (&curl_perform, plugin);
1996 return GNUNET_SYSERR;
1999 /* not connected, initiate connection */
2000 if (ps->send_connected==GNUNET_NO)
2002 int fresh = GNUNET_NO;
2003 if (NULL == ps->send_endpoint)
2005 ps->send_endpoint = curl_easy_init();
2008 GNUNET_assert (ps->send_endpoint != NULL);
2009 GNUNET_assert (NULL != ps->pending_msgs_tail);
2010 #if DEBUG_CONNECTIONS
2011 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound not connected, initiating connection\n",ps);
2013 ps->send_active = GNUNET_NO;
2014 msg = ps->pending_msgs_tail;
2017 curl_easy_setopt(ps->send_endpoint, CURLOPT_VERBOSE, 1L);
2018 curl_easy_setopt(ps->send_endpoint, CURLOPT_DEBUGFUNCTION , &curl_logger);
2019 curl_easy_setopt(ps->send_endpoint, CURLOPT_DEBUGDATA , ps->send_endpoint);
2022 curl_easy_setopt (ps->send_endpoint, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
2023 curl_easy_setopt(ps->send_endpoint, CURLOPT_SSL_VERIFYPEER, 0);
2024 curl_easy_setopt(ps->send_endpoint, CURLOPT_SSL_VERIFYHOST, 0);
2026 curl_easy_setopt(ps->send_endpoint, CURLOPT_URL, ps->url);
2027 curl_easy_setopt(ps->send_endpoint, CURLOPT_PUT, 1L);
2028 curl_easy_setopt(ps->send_endpoint, CURLOPT_HEADERFUNCTION, &curl_put_header_cb);
2029 curl_easy_setopt(ps->send_endpoint, CURLOPT_WRITEHEADER, ps);
2030 curl_easy_setopt(ps->send_endpoint, CURLOPT_READFUNCTION, curl_send_cb);
2031 curl_easy_setopt(ps->send_endpoint, CURLOPT_READDATA, ps);
2032 curl_easy_setopt(ps->send_endpoint, CURLOPT_WRITEFUNCTION, curl_receive_cb);
2033 curl_easy_setopt(ps->send_endpoint, CURLOPT_READDATA, ps);
2034 curl_easy_setopt(ps->send_endpoint, CURLOPT_TIMEOUT, (long) timeout.rel_value);
2035 curl_easy_setopt(ps->send_endpoint, CURLOPT_PRIVATE, ps);
2036 curl_easy_setopt(ps->send_endpoint, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
2037 curl_easy_setopt(ps->send_endpoint, CURLOPT_BUFFERSIZE, 2 * GNUNET_SERVER_MAX_MESSAGE_SIZE);
2038 #if CURL_TCP_NODELAY
2039 curl_easy_setopt(ps->send_endpoint, CURLOPT_TCP_NODELAY, 1);
2042 if (fresh==GNUNET_YES)
2044 mret = curl_multi_add_handle(plugin->multi_handle, ps->send_endpoint);
2045 if (mret != CURLM_OK)
2047 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2048 _("Connection: %X: %s failed at %s:%d: `%s'\n"),
2050 "curl_multi_add_handle", __FILE__, __LINE__,
2051 curl_multi_strerror (mret));
2052 return GNUNET_SYSERR;
2056 if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
2058 GNUNET_SCHEDULER_cancel(plugin->http_curl_task);
2059 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
2061 plugin->http_curl_task = GNUNET_SCHEDULER_add_now (&curl_perform, plugin);
2064 if (ps->direction == INBOUND)
2066 GNUNET_assert (NULL != ps->pending_msgs_tail);
2067 if ((ps->recv_connected==GNUNET_YES) && (ps->send_connected==GNUNET_YES) &&
2068 (ps->recv_force_disconnect==GNUNET_NO) && (ps->recv_force_disconnect==GNUNET_NO))
2071 return GNUNET_SYSERR;
2075 * select best session to transmit data to peer
2077 * @param pc peer context of target peer
2078 * @param addr address of target peer
2079 * @param addrlen address length
2080 * @param force_address does transport service enforce address?
2081 * @param session session passed by transport service
2082 * @return selected session
2085 static struct Session * send_select_session (struct HTTP_PeerContext *pc, const void * addr, size_t addrlen, int force_address, struct Session * session)
2087 struct Session * tmp = NULL;
2088 int addr_given = GNUNET_NO;
2090 if ((addr!=NULL) && (addrlen>0))
2091 addr_given = GNUNET_YES;
2093 if (force_address == GNUNET_YES)
2095 /* check session given as argument */
2096 if ((session != NULL) && (addr_given == GNUNET_YES))
2098 if (0 == memcmp(session->addr, addr, addrlen))
2100 /* connection can not be used, since it is disconnected */
2101 if ((session->recv_force_disconnect==GNUNET_NO) && (session->send_force_disconnect==GNUNET_NO))
2103 #if DEBUG_SESSION_SELECTION
2104 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using session passed by transport to send to forced address \n", session);
2110 /* check last session used */
2111 if ((pc->last_session != NULL)&& (addr_given == GNUNET_YES))
2113 if (0 == memcmp(pc->last_session->addr, addr, addrlen))
2115 /* connection can not be used, since it is disconnected */
2116 if ((pc->last_session->recv_force_disconnect==GNUNET_NO) && (pc->last_session->send_force_disconnect==GNUNET_NO))
2118 #if DEBUG_SESSION_SELECTION
2119 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using last session used to send to forced address \n", pc->last_session);
2121 return pc->last_session;
2125 /* find session in existing sessions */
2127 while ((tmp!=NULL) && (addr_given == GNUNET_YES))
2130 if (0 == memcmp(tmp->addr, addr, addrlen))
2132 /* connection can not be used, since it is disconnected */
2133 if ((tmp->recv_force_disconnect==GNUNET_NO) && (tmp->send_force_disconnect==GNUNET_NO))
2135 #if DEBUG_SESSION_SELECTION
2136 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using existing session to send to forced address \n", session);
2144 /* no session to use */
2147 if ((force_address == GNUNET_NO) || (force_address == GNUNET_SYSERR))
2149 /* check session given as argument */
2150 if (session != NULL)
2152 /* connection can not be used, since it is disconnected */
2153 if ((session->recv_force_disconnect==GNUNET_NO) && (session->send_force_disconnect==GNUNET_NO))
2155 #if DEBUG_SESSION_SELECTION
2156 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using session passed by transport to send not-forced address \n", session);
2162 /* check last session used */
2163 if (pc->last_session != NULL)
2165 /* connection can not be used, since it is disconnected */
2166 if ((pc->last_session->recv_force_disconnect==GNUNET_NO) && (pc->last_session->send_force_disconnect==GNUNET_NO))
2168 #if DEBUG_SESSION_SELECTION
2169 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using last session to send to not-forced address \n", pc->last_session);
2171 return pc->last_session;
2174 /* find session in existing sessions */
2178 /* connection can not be used, since it is disconnected */
2179 if ((tmp->recv_force_disconnect==GNUNET_NO) && (tmp->send_force_disconnect==GNUNET_NO))
2181 #if DEBUG_SESSION_SELECTION
2182 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using existing session to send to not-forced address \n", tmp);
2194 * Function that can be used by the transport service to transmit
2195 * a message using the plugin. Note that in the case of a
2196 * peer disconnecting, the continuation MUST be called
2197 * prior to the disconnect notification itself. This function
2198 * will be called with this peer's HELLO message to initiate
2199 * a fresh connection to another peer.
2201 * @param cls closure
2202 * @param target who should receive this message
2203 * @param msgbuf the message to transmit
2204 * @param msgbuf_size number of bytes in 'msgbuf'
2205 * @param priority how important is the message (most plugins will
2206 * ignore message priority and just FIFO)
2207 * @param to how long to wait at most for the transmission (does not
2208 * require plugins to discard the message after the timeout,
2209 * just advisory for the desired delay; most plugins will ignore
2211 * @param session which session must be used (or NULL for "any")
2212 * @param addr the address to use (can be NULL if the plugin
2213 * is "on its own" (i.e. re-use existing TCP connection))
2214 * @param addrlen length of the address in bytes
2215 * @param force_address GNUNET_YES if the plugin MUST use the given address,
2216 * GNUNET_NO means the plugin may use any other address and
2217 * GNUNET_SYSERR means that only reliable existing
2218 * bi-directional connections should be used (regardless
2220 * @param cont continuation to call once the message has
2221 * been transmitted (or if the transport is ready
2222 * for the next transmission call; or if the
2223 * peer disconnected...); can be NULL
2224 * @param cont_cls closure for cont
2225 * @return number of bytes used (on the physical network, with overheads);
2226 * -1 on hard errors (i.e. address invalid); 0 is a legal value
2227 * and does NOT mean that the message was not transmitted (DV)
2230 http_plugin_send (void *cls,
2231 const struct GNUNET_PeerIdentity *target,
2234 unsigned int priority,
2235 struct GNUNET_TIME_Relative to,
2236 struct Session *session,
2240 GNUNET_TRANSPORT_TransmitContinuation cont,
2243 struct Plugin *plugin = cls;
2244 struct HTTP_Message *msg;
2245 struct HTTP_PeerContext * pc;
2246 struct Session * ps = NULL;
2248 GNUNET_assert(cls !=NULL);
2252 if (force_address == GNUNET_YES)
2253 GNUNET_asprintf(&force, "forced addr.");
2254 if (force_address == GNUNET_NO)
2255 GNUNET_asprintf(&force, "any addr.");
2256 if (force_address == GNUNET_SYSERR)
2257 GNUNET_asprintf(&force,"reliable bi-direc. address addr.");
2259 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Transport tells me to send %u bytes to `%s' using %s (%s) and session: %X\n",
2263 http_plugin_address_to_string(NULL, addr, addrlen),
2269 pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &target->hashPubKey);
2273 pc = GNUNET_malloc(sizeof (struct HTTP_PeerContext));
2274 pc->plugin = plugin;
2275 pc->session_id_counter=1;
2276 pc->last_session = NULL;
2277 memcpy(&pc->identity, target, sizeof(struct GNUNET_PeerIdentity));
2278 GNUNET_CONTAINER_multihashmap_put(plugin->peers, &pc->identity.hashPubKey, pc, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
2279 GNUNET_STATISTICS_update (plugin->env->stats,
2280 gettext_noop ("# HTTP peers active"),
2285 ps = send_select_session (pc, addr, addrlen, force_address, session);
2287 /* session not existing, but address forced -> creating new session */
2290 if ((addr!=NULL) && (addrlen!=0))
2292 ps = GNUNET_malloc(sizeof (struct Session));
2293 #if DEBUG_SESSION_SELECTION
2294 if (force_address == GNUNET_YES)
2295 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection & forced address: creating new session %X to peer %s\n", ps, GNUNET_i2s(target));
2296 if (force_address != GNUNET_YES)
2297 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection: creating new session %X to peer %s\n", ps, GNUNET_i2s(target));
2299 if ((addrlen!=0) && (addr!=NULL))
2301 ps->addr = GNUNET_malloc(addrlen);
2302 memcpy(ps->addr,addr,addrlen);
2303 ps->addrlen = addrlen;
2310 ps->direction=OUTBOUND;
2311 ps->recv_connected = GNUNET_NO;
2312 ps->recv_force_disconnect = GNUNET_NO;
2313 ps->send_connected = GNUNET_NO;
2314 ps->send_force_disconnect = GNUNET_NO;
2315 ps->pending_msgs_head = NULL;
2316 ps->pending_msgs_tail = NULL;
2318 ps->session_id = pc->session_id_counter;
2319 ps->queue_length_cur = 0;
2320 ps->queue_length_max = GNUNET_SERVER_MAX_MESSAGE_SIZE;
2321 pc->session_id_counter++;
2322 ps->url = create_url (plugin, ps->addr, ps->addrlen, ps->session_id);
2323 if (ps->msgtok == NULL)
2324 ps->msgtok = GNUNET_SERVER_mst_create (&curl_receive_mst_cb, ps);
2325 GNUNET_CONTAINER_DLL_insert(pc->head,pc->tail,ps);
2326 GNUNET_STATISTICS_update (plugin->env->stats,
2327 gettext_noop ("# HTTP outbound sessions for peers active"),
2334 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));
2336 return GNUNET_SYSERR;
2340 if (msgbuf_size >= (ps->queue_length_max - ps->queue_length_cur))
2342 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);
2343 //return GNUNET_SYSERR;
2347 msg = GNUNET_malloc (sizeof (struct HTTP_Message) + msgbuf_size);
2349 msg->size = msgbuf_size;
2351 msg->buf = (char *) &msg[1];
2352 msg->transmit_cont = cont;
2353 msg->transmit_cont_cls = cont_cls;
2354 memcpy (msg->buf,msgbuf, msgbuf_size);
2356 GNUNET_CONTAINER_DLL_insert(ps->pending_msgs_head,ps->pending_msgs_tail,msg);
2357 ps->queue_length_cur += msgbuf_size;
2359 if (send_check_connections (plugin, ps) == GNUNET_SYSERR)
2360 return GNUNET_SYSERR;
2361 if (force_address != GNUNET_YES)
2362 pc->last_session = ps;
2364 if (pc->last_session==NULL)
2365 pc->last_session = ps;
2372 * Function that can be used to force the plugin to disconnect
2373 * from the given peer and cancel all previous transmissions
2374 * (and their continuationc).
2376 * @param cls closure
2377 * @param target peer from which to disconnect
2380 http_plugin_disconnect (void *cls,
2381 const struct GNUNET_PeerIdentity *target)
2385 struct Plugin *plugin = cls;
2386 struct HTTP_PeerContext *pc = NULL;
2387 struct Session *ps = NULL;
2388 //struct Session *tmp = NULL;
2390 pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &target->hashPubKey);
2397 /* Telling transport that session is getting disconnected */
2398 plugin->env->session_end(plugin, target, ps);
2399 if (ps->direction==OUTBOUND)
2401 if (ps->send_endpoint!=NULL)
2403 //GNUNET_assert(CURLM_OK == curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint));
2404 //curl_easy_cleanup(ps->send_endpoint);
2405 //ps->send_endpoint=NULL;
2406 ps->send_force_disconnect = GNUNET_YES;
2408 if (ps->recv_endpoint!=NULL)
2410 //GNUNET_assert(CURLM_OK == curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint));
2411 //curl_easy_cleanup(ps->recv_endpoint);
2412 //ps->recv_endpoint=NULL;
2413 ps->recv_force_disconnect = GNUNET_YES;
2417 if (ps->direction==INBOUND)
2419 ps->recv_force_disconnect = GNUNET_YES;
2420 ps->send_force_disconnect = GNUNET_YES;
2423 while (ps->pending_msgs_head!=NULL)
2425 remove_http_message(ps, ps->pending_msgs_head);
2427 ps->recv_active = GNUNET_NO;
2428 ps->send_active = GNUNET_NO;
2435 * Convert the transports address to a nice, human-readable
2438 * @param cls closure
2439 * @param type name of the transport that generated the address
2440 * @param addr one of the addresses of the host, NULL for the last address
2441 * the specific address format depends on the transport
2442 * @param addrlen length of the address
2443 * @param numeric should (IP) addresses be displayed in numeric form?
2444 * @param timeout after how long should we give up?
2445 * @param asc function to call on each string
2446 * @param asc_cls closure for asc
2449 http_plugin_address_pretty_printer (void *cls,
2454 struct GNUNET_TIME_Relative timeout,
2455 GNUNET_TRANSPORT_AddressStringCallback
2458 const struct IPv4HttpAddress *t4;
2459 const struct IPv6HttpAddress *t6;
2460 struct sockaddr_in a4;
2461 struct sockaddr_in6 a6;
2467 GNUNET_assert(cls !=NULL);
2468 if (addrlen == sizeof (struct IPv6HttpAddress))
2470 address = GNUNET_malloc (INET6_ADDRSTRLEN);
2472 a6.sin6_addr = t6->ipv6_addr;
2473 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
2474 port = ntohs(t6->u6_port);
2476 else if (addrlen == sizeof (struct IPv4HttpAddress))
2478 address = GNUNET_malloc (INET_ADDRSTRLEN);
2480 a4.sin_addr.s_addr = t4->ipv4_addr;
2481 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
2482 port = ntohs(t4->u_port);
2486 /* invalid address */
2487 GNUNET_break_op (0);
2488 asc (asc_cls, NULL);
2491 res = GNUNET_asprintf(&ret,"%s://%s:%u/", PROTOCOL_PREFIX, address, port);
2492 GNUNET_free (address);
2493 GNUNET_assert(res != 0);
2495 GNUNET_free_non_null (ret);
2501 * Another peer has suggested an address for this
2502 * peer and transport plugin. Check that this could be a valid
2503 * address. If so, consider adding it to the list
2506 * @param cls closure
2507 * @param addr pointer to the address
2508 * @param addrlen length of addr
2509 * @return GNUNET_OK if this is a plausible address for this peer
2513 http_plugin_address_suggested (void *cls,
2514 const void *addr, size_t addrlen)
2516 struct Plugin *plugin = cls;
2517 struct IPv4HttpAddress *v4;
2518 struct IPv6HttpAddress *v6;
2520 struct IPv4HttpAddress *tv4 = plugin->ipv4_addr_head;
2521 struct IPv6HttpAddress *tv6 = plugin->ipv6_addr_head;
2523 GNUNET_assert(cls !=NULL);
2524 if ((addrlen != sizeof (struct IPv4HttpAddress)) &&
2525 (addrlen != sizeof (struct IPv6HttpAddress)))
2527 return GNUNET_SYSERR;
2529 if (addrlen == sizeof (struct IPv4HttpAddress))
2531 v4 = (struct IPv4HttpAddress *) addr;
2533 if (plugin->bind4_address!=NULL)
2535 if (0 == memcmp (&plugin->bind4_address->sin_addr, &v4->ipv4_addr, sizeof(uint32_t)))
2538 return GNUNET_SYSERR;
2542 if (0==memcmp (&tv4->ipv4_addr, &v4->ipv4_addr, sizeof(uint32_t)))
2549 return GNUNET_SYSERR;
2551 if (addrlen == sizeof (struct IPv6HttpAddress))
2553 v6 = (struct IPv6HttpAddress *) addr;
2555 if (plugin->bind6_address!=NULL)
2557 if (0 == memcmp (&plugin->bind6_address->sin6_addr, &v6->ipv6_addr, sizeof(struct in6_addr)))
2560 return GNUNET_SYSERR;
2565 if (0 == memcmp (&tv6->ipv6_addr, &v6->ipv6_addr, sizeof(struct in6_addr)))
2572 return GNUNET_SYSERR;
2575 return GNUNET_SYSERR;
2580 * Function called for a quick conversion of the binary address to
2581 * a numeric address. Note that the caller must not free the
2582 * address and that the next call to this function is allowed
2583 * to override the address again.
2585 * @param cls closure
2586 * @param addr binary address
2587 * @param addrlen length of the address
2588 * @return string representing the same address
2591 http_plugin_address_to_string (void *cls,
2595 const struct IPv4HttpAddress *t4;
2596 const struct IPv6HttpAddress *t6;
2597 struct sockaddr_in a4;
2598 struct sockaddr_in6 a6;
2604 if (addrlen == sizeof (struct IPv6HttpAddress))
2606 address = GNUNET_malloc (INET6_ADDRSTRLEN);
2608 a6.sin6_addr = t6->ipv6_addr;
2609 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
2610 port = ntohs(t6->u6_port);
2612 else if (addrlen == sizeof (struct IPv4HttpAddress))
2614 address = GNUNET_malloc (INET_ADDRSTRLEN);
2616 a4.sin_addr.s_addr = t4->ipv4_addr;
2617 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
2618 port = ntohs(t4->u_port);
2622 /* invalid address */
2625 res = GNUNET_asprintf(&ret,"%s:%u",address,port);
2626 GNUNET_free (address);
2627 GNUNET_assert(res != 0);
2633 * Exit point from the plugin.
2636 LIBGNUNET_PLUGIN_TRANSPORT_DONE (void *cls)
2638 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
2639 struct Plugin *plugin = api->cls;
2641 struct IPv4HttpAddress * ipv4addr;
2642 struct IPv6HttpAddress * ipv6addr;
2643 GNUNET_assert(cls !=NULL);
2645 if (plugin->http_server_daemon_v4 != NULL)
2647 MHD_stop_daemon (plugin->http_server_daemon_v4);
2648 plugin->http_server_daemon_v4 = NULL;
2650 if (plugin->http_server_daemon_v6 != NULL)
2652 MHD_stop_daemon (plugin->http_server_daemon_v6);
2653 plugin->http_server_daemon_v6 = NULL;
2656 if ( plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
2658 GNUNET_SCHEDULER_cancel(plugin->http_server_task_v4);
2659 plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;
2662 if ( plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
2664 GNUNET_SCHEDULER_cancel(plugin->http_server_task_v6);
2665 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
2668 while (plugin->ipv4_addr_head!=NULL)
2670 ipv4addr = plugin->ipv4_addr_head;
2671 GNUNET_CONTAINER_DLL_remove(plugin->ipv4_addr_head,plugin->ipv4_addr_tail,ipv4addr);
2672 GNUNET_free(ipv4addr);
2675 while (plugin->ipv6_addr_head!=NULL)
2677 ipv6addr = plugin->ipv6_addr_head;
2678 GNUNET_CONTAINER_DLL_remove(plugin->ipv6_addr_head,plugin->ipv6_addr_tail,ipv6addr);
2679 GNUNET_free(ipv6addr);
2682 /* free all peer information */
2683 if (plugin->peers!=NULL)
2685 GNUNET_CONTAINER_multihashmap_iterate (plugin->peers,
2686 &remove_peer_context_Iterator,
2688 GNUNET_CONTAINER_multihashmap_destroy (plugin->peers);
2690 if (plugin->multi_handle!=NULL)
2692 mret = curl_multi_cleanup(plugin->multi_handle);
2694 if ( CURLM_OK != mret)
2695 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed\n");
2697 plugin->multi_handle = NULL;
2699 curl_global_cleanup();
2701 if ( plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
2703 GNUNET_SCHEDULER_cancel(plugin->http_curl_task);
2704 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
2707 GNUNET_free_non_null (plugin->bind4_address);
2708 GNUNET_free_non_null (plugin->bind6_address);
2709 GNUNET_free_non_null(plugin->bind_hostname);
2711 GNUNET_free_non_null (plugin->crypto_init);
2712 GNUNET_free_non_null (plugin->cert);
2713 GNUNET_free_non_null (plugin->key);
2715 GNUNET_free (plugin);
2718 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unload %s plugin complete...\n", PROTOCOL_PREFIX);
2725 load_certificate( const char * file )
2727 struct GNUNET_DISK_FileHandle * gn_file;
2732 if (0!=STAT(file, &fstat))
2734 text = GNUNET_malloc (fstat.st_size+1);
2735 gn_file = GNUNET_DISK_file_open(file,GNUNET_DISK_OPEN_READ, GNUNET_DISK_PERM_USER_READ);
2741 if (GNUNET_SYSERR == GNUNET_DISK_file_read(gn_file, text, fstat.st_size))
2744 GNUNET_DISK_file_close(gn_file);
2747 text[fstat.st_size] = '\0';
2748 GNUNET_DISK_file_close(gn_file);
2756 * Entry point for the plugin.
2759 LIBGNUNET_PLUGIN_TRANSPORT_INIT (void *cls)
2761 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
2762 struct Plugin *plugin;
2763 struct GNUNET_TRANSPORT_PluginFunctions *api;
2764 struct GNUNET_TIME_Relative gn_timeout;
2765 long long unsigned int port;
2766 char * component_name;
2768 char * key_file = NULL;
2769 char * cert_file = NULL;
2772 GNUNET_assert(cls !=NULL);
2774 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting %s plugin...\n", PROTOCOL_PREFIX);
2776 GNUNET_asprintf(&component_name,"transport-%s",PROTOCOL_PREFIX);
2778 plugin = GNUNET_malloc (sizeof (struct Plugin));
2779 plugin->stats = env->stats;
2781 plugin->peers = NULL;
2782 plugin->bind4_address = NULL;
2783 plugin->use_ipv6 = GNUNET_YES;
2784 plugin->use_ipv4 = GNUNET_YES;
2786 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
2788 api->send = &http_plugin_send;
2789 api->disconnect = &http_plugin_disconnect;
2790 api->address_pretty_printer = &http_plugin_address_pretty_printer;
2791 api->check_address = &http_plugin_address_suggested;
2792 api->address_to_string = &http_plugin_address_to_string;
2794 /* Hashing our identity to use it in URLs */
2795 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &plugin->my_ascii_hash_ident);
2798 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2799 component_name, "USE_IPv6"))
2801 plugin->use_ipv6 = GNUNET_CONFIGURATION_get_value_yesno (env->cfg,
2806 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2807 component_name, "USE_IPv4"))
2809 plugin->use_ipv4 = GNUNET_CONFIGURATION_get_value_yesno (env->cfg,
2810 component_name,"USE_IPv4");
2812 /* Reading port number from config file */
2814 GNUNET_CONFIGURATION_get_value_number (env->cfg,
2820 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2822 _("Require valid port number for transport plugin `%s' in configuration!\n"),
2824 GNUNET_free(component_name);
2825 LIBGNUNET_PLUGIN_TRANSPORT_DONE (api);
2829 /* Reading ipv4 addresse to bind to from config file */
2830 if ((plugin->use_ipv4==GNUNET_YES) && (GNUNET_CONFIGURATION_have_value (env->cfg,
2831 component_name, "BINDTO4")))
2833 GNUNET_break (GNUNET_OK ==
2834 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2837 &plugin->bind_hostname));
2838 plugin->bind4_address = GNUNET_malloc(sizeof(struct sockaddr_in));
2839 plugin->bind4_address->sin_family = AF_INET;
2840 plugin->bind4_address->sin_port = htons (port);
2842 if (plugin->bind_hostname!=NULL)
2844 if (inet_pton(AF_INET,plugin->bind_hostname, &plugin->bind4_address->sin_addr)<=0)
2846 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2848 _("Misconfigured address to bind to in configuration!\n"));
2849 GNUNET_free(plugin->bind4_address);
2850 GNUNET_free(plugin->bind_hostname);
2851 plugin->bind_hostname = NULL;
2852 plugin->bind4_address = NULL;
2857 /* Reading ipv4 addresse to bind to from config file */
2858 if ((plugin->use_ipv6==GNUNET_YES) && (GNUNET_CONFIGURATION_have_value (env->cfg,
2859 component_name, "BINDTO6")))
2861 if (GNUNET_OK == GNUNET_CONFIGURATION_get_value_string (env->cfg,
2864 &plugin->bind_hostname))
2866 plugin->bind6_address = GNUNET_malloc(sizeof(struct sockaddr_in6));
2867 plugin->bind6_address->sin6_family = AF_INET6;
2868 plugin->bind6_address->sin6_port = htons (port);
2869 if (plugin->bind_hostname!=NULL)
2871 if (inet_pton(AF_INET6,plugin->bind_hostname, &plugin->bind6_address->sin6_addr)<=0)
2873 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2875 _("Misconfigured address to bind to in configuration!\n"));
2876 GNUNET_free(plugin->bind6_address);
2877 GNUNET_free(plugin->bind_hostname);
2878 plugin->bind_hostname = NULL;
2879 plugin->bind6_address = NULL;
2886 /* Reading HTTPS crypto related configuration */
2887 /* Get crypto init string from config */
2888 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2889 "transport-https", "CRYPTO_INIT"))
2891 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2894 &plugin->crypto_init);
2898 GNUNET_asprintf(&plugin->crypto_init,"NORMAL");
2901 /* Get private key file from config */
2902 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2903 "transport-https", "KEY_FILE"))
2905 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2911 GNUNET_asprintf(&key_file,"https.key");
2913 /* Get private key file from config */
2914 if (GNUNET_CONFIGURATION_have_value (env->cfg,"transport-https", "CERT_FILE"))
2916 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2921 if (cert_file==NULL)
2922 GNUNET_asprintf(&cert_file,"https.cert");
2924 /* read key & certificates from file */
2925 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Loading TLS certificate `%s' `%s'\n", key_file, cert_file);
2927 plugin->key = load_certificate( key_file );
2928 plugin->cert = load_certificate( cert_file );
2930 if ((plugin->key==NULL) || (plugin->cert==NULL))
2934 GNUNET_asprintf(&cmd,"gnunet-transport-certificate-creation %s %s", key_file, cert_file);
2935 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No usable TLS certificate found, creating certificate \n");
2940 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2942 _("Could not create a new TLS certificate, shell script `%s' failed!\n"),cmd,
2944 GNUNET_free (key_file);
2945 GNUNET_free (cert_file);
2946 GNUNET_free (component_name);
2948 LIBGNUNET_PLUGIN_TRANSPORT_DONE(api);
2955 plugin->key = load_certificate( key_file );
2956 plugin->cert = load_certificate( cert_file );
2958 if ((plugin->key==NULL) || (plugin->cert==NULL))
2960 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2962 _("No usable TLS certificate found and creating one failed! \n"),
2964 GNUNET_free (key_file);
2965 GNUNET_free (cert_file);
2966 GNUNET_free (component_name);
2968 LIBGNUNET_PLUGIN_TRANSPORT_DONE(api);
2972 GNUNET_free (key_file);
2973 GNUNET_free (cert_file);
2975 GNUNET_assert((plugin->key!=NULL) && (plugin->cert!=NULL));
2976 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "TLS certificate loaded\n");
2979 GNUNET_assert ((port > 0) && (port <= 65535));
2980 plugin->port_inbound = port;
2981 gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
2982 unsigned int timeout = (gn_timeout.rel_value) / 1000;
2983 if ((plugin->http_server_daemon_v6 == NULL) && (plugin->use_ipv6 == GNUNET_YES) && (port != 0))
2985 struct sockaddr * tmp = (struct sockaddr *) plugin->bind6_address;
2986 plugin->http_server_daemon_v6 = MHD_start_daemon (
2996 plugin , &mhd_access_cb, plugin,
2997 MHD_OPTION_SOCK_ADDR, tmp,
2998 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 32,
2999 //MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 6,
3001 MHD_OPTION_HTTPS_PRIORITIES, plugin->crypto_init,
3002 MHD_OPTION_HTTPS_MEM_KEY, plugin->key,
3003 MHD_OPTION_HTTPS_MEM_CERT, plugin->cert,
3005 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) timeout,
3006 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (2 * GNUNET_SERVER_MAX_MESSAGE_SIZE),
3007 MHD_OPTION_NOTIFY_COMPLETED, &mhd_termination_cb, NULL,
3008 MHD_OPTION_EXTERNAL_LOGGER, mhd_logger, plugin->mhd_log,
3011 if ((plugin->http_server_daemon_v4 == NULL) && (plugin->use_ipv4 == GNUNET_YES) && (port != 0))
3013 plugin->http_server_daemon_v4 = MHD_start_daemon (
3023 plugin , &mhd_access_cb, plugin,
3024 MHD_OPTION_SOCK_ADDR, (struct sockaddr_in *)plugin->bind4_address,
3025 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 32,
3026 //MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 6,
3028 MHD_OPTION_HTTPS_PRIORITIES, plugin->crypto_init,
3029 MHD_OPTION_HTTPS_MEM_KEY, plugin->key,
3030 MHD_OPTION_HTTPS_MEM_CERT, plugin->cert,
3032 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) timeout,
3033 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (2 * GNUNET_SERVER_MAX_MESSAGE_SIZE),
3034 MHD_OPTION_NOTIFY_COMPLETED, &mhd_termination_cb, NULL,
3035 MHD_OPTION_EXTERNAL_LOGGER, mhd_logger, plugin->mhd_log,
3038 if (plugin->http_server_daemon_v4 != NULL)
3039 plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
3040 if (plugin->http_server_daemon_v6 != NULL)
3041 plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
3044 if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
3047 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);
3050 else if ((plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK) && (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK))
3053 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);
3056 else if ((plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK) && (plugin->http_server_task_v4 == GNUNET_SCHEDULER_NO_TASK))
3059 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);
3065 if ((plugin->use_ipv6 == GNUNET_YES) && (plugin->use_ipv4 == GNUNET_YES))
3066 GNUNET_asprintf(&tmp,"with IPv4 and IPv6 enabled");
3067 if ((plugin->use_ipv6 == GNUNET_NO) && (plugin->use_ipv4 == GNUNET_YES))
3068 GNUNET_asprintf(&tmp,"with IPv4 enabled");
3069 if ((plugin->use_ipv6 == GNUNET_YES) && (plugin->use_ipv4 == GNUNET_NO))
3070 GNUNET_asprintf(&tmp,"with IPv6 enabled");
3071 if ((plugin->use_ipv6 == GNUNET_NO) && (plugin->use_ipv4 == GNUNET_NO))
3072 GNUNET_asprintf(&tmp,"with NO IP PROTOCOL enabled");
3073 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);
3075 GNUNET_free (component_name);
3076 LIBGNUNET_PLUGIN_TRANSPORT_DONE (api);
3080 /* Initializing cURL */
3081 curl_global_init(CURL_GLOBAL_ALL);
3082 plugin->multi_handle = curl_multi_init();
3084 if ( NULL == plugin->multi_handle )
3086 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
3088 _("Could not initialize curl multi handle, failed to start %s plugin!\n"),
3090 GNUNET_free(component_name);
3091 LIBGNUNET_PLUGIN_TRANSPORT_DONE (api);
3095 plugin->peers = GNUNET_CONTAINER_multihashmap_create (10);
3096 GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
3098 GNUNET_free(component_name);
3102 /* end of gnunet_transport_plugin.http.c */