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_https.c
23 * @brief https 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 "gnunet_disk_lib.h"
41 #include "microhttpd.h"
42 #include <curl/curl.h>
44 #define DEBUG_HTTPS GNUNET_YES
45 #define VERBOSE GNUNET_YES
46 #define DEBUG_CURL GNUNET_YES
47 #define DEBUG_CONNECTIONS GNUNET_YES
48 #define DEBUG_SESSION_SELECTION GNUNET_YES
50 #define INBOUND GNUNET_NO
51 #define OUTBOUND GNUNET_YES
53 #define PROTOCOL_PREFIX "https"
56 * Text of the response sent back after the last bytes of a PUT
57 * request have been received (just to formally obey the HTTP
60 #define HTTP_PUT_RESPONSE "Thank you!"
63 * After how long do we expire an address that we
64 * learned from another peer if it is not reconfirmed
67 #define LEARNED_ADDRESS_EXPIRATION GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 6)
70 * Page returned if request invalid
72 #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>"
75 * Timeout for a http connect
77 #define HTTP_CONNECT_TIMEOUT 30
80 * Network format for IPv4 addresses.
82 struct IPv4HttpAddress
85 * IPv4 address, in network byte order.
87 uint32_t ipv4_addr GNUNET_PACKED;
90 * Port number, in network byte order.
92 uint16_t u_port GNUNET_PACKED;
98 * Network format for IPv6 addresses.
100 struct IPv6HttpAddress
105 struct in6_addr ipv6_addr GNUNET_PACKED;
108 * Port number, in network byte order.
110 uint16_t u6_port GNUNET_PACKED;
116 * Message to send using http
121 * next pointer for double linked list
123 struct HTTP_Message * next;
126 * previous pointer for double linked list
128 struct HTTP_Message * prev;
131 * buffer containing data to send
136 * amount of data already sent
146 * Continuation function to call once the transmission buffer
147 * has again space available. NULL if there is no
148 * continuation to call.
150 GNUNET_TRANSPORT_TransmitContinuation transmit_cont;
153 * Closure for transmit_cont.
155 void *transmit_cont_cls;
159 struct HTTP_PeerContext
164 struct GNUNET_PeerIdentity identity;
167 * Pointer to the global plugin struct.
169 struct Plugin *plugin;
172 * Linked list of connections with this peer
175 struct Session * head;
178 * Linked list of connections with this peer
181 struct Session * tail;
184 * id for next session
186 size_t session_id_counter;
189 * Last session used to send data
191 struct Session * last_session;
200 struct SessionHeader header;
203 * next session in linked list
205 struct Session * next;
208 * previous session in linked list
210 struct Session * prev;
213 * address of this session
228 * Message queue for outbound messages
231 struct HTTP_Message * pending_msgs_head;
234 * Message queue for outbound messages
237 struct HTTP_Message * pending_msgs_tail;
240 * partner peer this connection belongs to
242 struct HTTP_PeerContext * peercontext;
245 * message stream tokenizer for incoming data
247 struct GNUNET_SERVER_MessageStreamTokenizer *msgtok;
251 * outbound: OUTBOUND (GNUNET_YES)
252 * inbound : INBOUND (GNUNET_NO)
254 unsigned int direction;
257 * is session connected to send data?
259 unsigned int send_connected;
262 * is send connection active?
264 unsigned int send_active;
267 * connection disconnect forced (e.g. from transport)
269 unsigned int send_force_disconnect;
272 * is session connected to receive data?
274 unsigned int recv_connected;
277 * is receive connection active?
279 unsigned int recv_active;
282 * connection disconnect forced (e.g. from transport)
284 unsigned int recv_force_disconnect;
287 * id for next session
288 * NOTE: 0 is not an ID, zero is not defined. A correct ID is always > 0
293 * entity managing sending data
294 * outbound session: CURL *
295 * inbound session: mhd_connection *
297 void * send_endpoint;
300 * entity managing recieving data
301 * outbound session: CURL *
302 * inbound session: mhd_connection *
304 void * recv_endpoint;
308 * Encapsulation of all of the state of the plugin.
315 struct GNUNET_TRANSPORT_PluginEnvironment *env;
318 * Handle for reporting statistics.
320 struct GNUNET_STATISTICS_Handle *stats;
322 unsigned int port_inbound;
324 struct GNUNET_CONTAINER_MultiHashMap *peers;
327 * Daemon for listening for new IPv4 connections.
329 struct MHD_Daemon *http_server_daemon_v4;
332 * Daemon for listening for new IPv6connections.
334 struct MHD_Daemon *http_server_daemon_v6;
337 * Our primary task for http daemon handling IPv4 connections
339 GNUNET_SCHEDULER_TaskIdentifier http_server_task_v4;
342 * Our primary task for http daemon handling IPv6 connections
344 GNUNET_SCHEDULER_TaskIdentifier http_server_task_v6;
347 * The task sending data
349 GNUNET_SCHEDULER_TaskIdentifier http_curl_task;
354 CURLM * multi_handle;
357 * Our ASCII encoded, hashed peer identity
358 * This string is used to distinguish between connections and is added to the urls
360 struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
362 struct sockaddr_in * bind4_address;
363 struct sockaddr_in6 * bind6_address;
364 char * bind_hostname;
368 /* The certificate MHD uses as an \0 terminated string */
371 /* The private key MHD uses as an \0 terminated string */
377 * Function called for a quick conversion of the binary address to
378 * a numeric address. Note that the caller must not free the
379 * address and that the next call to this function is allowed
380 * to override the address again.
383 * @param addr binary address
384 * @param addrlen length of the address
385 * @return string representing the same address
388 http_plugin_address_to_string (void *cls,
394 * Call MHD to process pending ipv4 requests and then go back
395 * and schedule the next run.
397 static void http_server_daemon_v4_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
399 * Call MHD to process pending ipv6 requests and then go back
400 * and schedule the next run.
402 static void http_server_daemon_v6_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
405 * Function setting up curl handle and selecting message to send
407 * @param ses session to send data to
408 * @param con connection
409 * @return bytes sent to peer
411 static ssize_t send_check_connections (void *cls, struct Session *ps);
414 * Function setting up file descriptors and scheduling task to run
416 * @param ses session to send data to
419 static int curl_schedule(void *cls );
423 static char * create_url(void * cls, const void * addr, size_t addrlen, size_t id)
425 struct Plugin *plugin = cls;
428 GNUNET_assert ((addr!=NULL) && (addrlen != 0));
429 GNUNET_asprintf(&url,
430 "%s://%s/%s;%u", PROTOCOL_PREFIX,
431 http_plugin_address_to_string(NULL, addr, addrlen),
432 (char *) (&plugin->my_ascii_hash_ident),id);
438 * Removes a message from the linked list of messages
439 * @param con connection to remove message from
440 * @param msg message to remove
441 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
443 static int remove_http_message (struct Session * ps, struct HTTP_Message * msg)
445 GNUNET_CONTAINER_DLL_remove(ps->pending_msgs_head,ps->pending_msgs_tail,msg);
450 int remove_peer_context_Iterator (void *cls, const GNUNET_HashCode *key, void *value);
453 * Removes a session from the linked list of sessions
454 * @param pc peer context
456 * @param call_msg_cont GNUNET_YES to call pending message continuations, otherwise no
457 * @param call_msg_cont_result, result to call message continuations with
458 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
460 static int remove_session (struct HTTP_PeerContext * pc, struct Session * ps, int call_msg_cont, int call_msg_cont_result)
462 struct HTTP_Message * msg;
463 struct Plugin * plugin = ps->peercontext->plugin;
465 #if DEBUG_CONNECTIONS
466 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);
468 plugin->env->session_end(plugin, &pc->identity, ps);
470 GNUNET_free_non_null (ps->addr);
471 GNUNET_SERVER_mst_destroy (ps->msgtok);
472 GNUNET_free(ps->url);
474 if (ps->direction==INBOUND)
476 if (ps->recv_endpoint != NULL)
478 curl_easy_cleanup(ps->recv_endpoint);
479 ps->recv_endpoint = NULL;
481 if (ps->send_endpoint != NULL)
483 curl_easy_cleanup(ps->send_endpoint);
484 ps->send_endpoint = NULL;
488 msg = ps->pending_msgs_head;
491 if ((call_msg_cont == GNUNET_YES) && (msg->transmit_cont!=NULL))
493 msg->transmit_cont (msg->transmit_cont_cls,&pc->identity,call_msg_cont_result);
496 GNUNET_CONTAINER_DLL_remove(ps->pending_msgs_head,ps->pending_msgs_head,msg);
497 msg = ps->pending_msgs_head;
500 GNUNET_CONTAINER_DLL_remove(pc->head,pc->tail,ps);
504 /* no sessions left remove peer */
508 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No sessions left for peer `%s', removing context\n",GNUNET_i2s(&pc->identity));
510 remove_peer_context_Iterator(plugin, &pc->identity.hashPubKey, pc);
516 int remove_peer_context_Iterator (void *cls, const GNUNET_HashCode *key, void *value)
518 struct Plugin *plugin = cls;
519 struct HTTP_PeerContext * pc = value;
520 struct Session * ps = pc->head;
521 struct Session * tmp = NULL;
522 struct HTTP_Message * msg = NULL;
523 struct HTTP_Message * msg_tmp = NULL;
525 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing context for peer `%s'\n",GNUNET_i2s(&pc->identity));
527 GNUNET_CONTAINER_multihashmap_remove (plugin->peers, &pc->identity.hashPubKey, pc);
530 plugin->env->session_end(plugin, &pc->identity, ps);
533 GNUNET_free_non_null (ps->addr);
534 GNUNET_free(ps->url);
535 if (ps->msgtok != NULL)
536 GNUNET_SERVER_mst_destroy (ps->msgtok);
538 msg = ps->pending_msgs_head;
545 if (ps->direction==OUTBOUND)
547 if (ps->send_endpoint!=NULL)
548 curl_easy_cleanup(ps->send_endpoint);
549 if (ps->recv_endpoint!=NULL)
550 curl_easy_cleanup(ps->recv_endpoint);
557 GNUNET_STATISTICS_update (plugin->env->stats,
558 gettext_noop ("# HTTP peers active"),
565 * Add the IP of our network interface to the list of
566 * our external IP addresses.
568 * @param cls the 'struct Plugin*'
569 * @param name name of the interface
570 * @param isDefault do we think this may be our default interface
571 * @param addr address of the interface
572 * @param addrlen number of bytes in addr
573 * @return GNUNET_OK to continue iterating
576 process_interfaces (void *cls,
579 const struct sockaddr *addr, socklen_t addrlen)
581 struct Plugin *plugin = cls;
582 struct IPv4HttpAddress * t4;
583 struct IPv6HttpAddress * t6;
587 GNUNET_assert(cls !=NULL);
588 af = addr->sa_family;
589 if ((af == AF_INET) && (plugin->use_ipv4 == GNUNET_YES) && (plugin->bind6_address == NULL))
591 struct in_addr bnd_cmp = ((struct sockaddr_in *) addr)->sin_addr;
592 t4 = GNUNET_malloc(sizeof(struct IPv4HttpAddress));
593 /* Not skipping loopback addresses
594 if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
600 t4->ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
601 t4->u_port = htons (plugin->port_inbound);
602 if (plugin->bind4_address != NULL)
604 if (0 == memcmp(&plugin->bind4_address->sin_addr, &bnd_cmp, sizeof (struct in_addr)))
606 plugin->env->notify_address(plugin->env->cls,"https",t4, sizeof (struct IPv4HttpAddress), GNUNET_TIME_UNIT_FOREVER_REL);
611 plugin->env->notify_address(plugin->env->cls,"https",t4, sizeof (struct IPv4HttpAddress), GNUNET_TIME_UNIT_FOREVER_REL);
615 else if ((af == AF_INET6) && (plugin->use_ipv6 == GNUNET_YES) && (plugin->bind4_address == NULL))
617 struct in6_addr bnd_cmp6 = ((struct sockaddr_in6 *) addr)->sin6_addr;
618 t6 = GNUNET_malloc(sizeof(struct IPv6HttpAddress));
619 if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
624 if (plugin->bind6_address != NULL)
626 if (0 == memcmp(&plugin->bind6_address->sin6_addr, &bnd_cmp6, sizeof (struct in6_addr)))
628 memcpy (&t6->ipv6_addr,
629 &((struct sockaddr_in6 *) addr)->sin6_addr,
630 sizeof (struct in6_addr));
631 t6->u6_port = htons (plugin->port_inbound);
632 plugin->env->notify_address(plugin->env->cls,"https",t6,sizeof (struct IPv6HttpAddress) , GNUNET_TIME_UNIT_FOREVER_REL);
637 memcpy (&t6->ipv6_addr,
638 &((struct sockaddr_in6 *) addr)->sin6_addr,
639 sizeof (struct in6_addr));
640 t6->u6_port = htons (plugin->port_inbound);
641 plugin->env->notify_address(plugin->env->cls,"https",t6,sizeof (struct IPv6HttpAddress) , GNUNET_TIME_UNIT_FOREVER_REL);
650 * Callback called by MHD when a connection is terminated
652 static void mhd_termination_cb (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
654 struct Session * ps = *httpSessionCache;
657 struct HTTP_PeerContext * pc = ps->peercontext;
659 if (connection==ps->recv_endpoint)
661 #if DEBUG_CONNECTIONS
662 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound connection from peer `%s' was terminated\n", ps, GNUNET_i2s(&pc->identity));
664 ps->recv_active = GNUNET_NO;
665 ps->recv_connected = GNUNET_NO;
666 ps->recv_endpoint = NULL;
668 if (connection==ps->send_endpoint)
671 ps->send_active = GNUNET_NO;
672 ps->send_connected = GNUNET_NO;
673 ps->send_endpoint = NULL;
674 #if DEBUG_CONNECTIONS
675 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound connection from peer `%s' was terminated\n", ps, GNUNET_i2s(&pc->identity));
679 /* if both connections disconnected, remove session */
680 if ((ps->send_connected == GNUNET_NO) && (ps->recv_connected == GNUNET_NO))
682 GNUNET_STATISTICS_update (pc->plugin->env->stats,
683 gettext_noop ("# HTTPS inbound sessions for peers active"),
686 remove_session(pc,ps,GNUNET_YES,GNUNET_SYSERR);
690 static void mhd_write_mst_cb (void *cls,
692 const struct GNUNET_MessageHeader *message)
695 struct Session *ps = cls;
696 struct HTTP_PeerContext *pc = ps->peercontext;
697 GNUNET_assert(ps != NULL);
698 GNUNET_assert(pc != NULL);
700 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
701 "Connection %X: Forwarding message to transport service, type %u and size %u from `%s' (`%s')\n",
703 ntohs(message->type),
704 ntohs(message->size),
705 GNUNET_i2s(&(ps->peercontext)->identity),http_plugin_address_to_string(NULL,ps->addr,ps->addrlen));
707 pc->plugin->env->receive (ps->peercontext->plugin->env->cls,
715 * Check if ip is allowed to connect.
718 mhd_accept_cb (void *cls,
719 const struct sockaddr *addr, socklen_t addr_len)
722 struct Plugin *plugin = cls;
724 /* Every connection is accepted, nothing more to do here */
728 int mhd_send_callback (void *cls, uint64_t pos, char *buf, int max)
732 struct Session * ps = cls;
733 struct HTTP_PeerContext * pc;
734 struct HTTP_Message * msg;
736 GNUNET_assert (ps!=NULL);
737 pc = ps->peercontext;
738 msg = ps->pending_msgs_tail;
739 if (ps->send_force_disconnect==GNUNET_YES)
741 #if DEBUG_CONNECTIONS
742 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound forced to disconnect\n",ps);
749 if ((msg->size-msg->pos) <= max)
751 memcpy(buf,&msg->buf[msg->pos],(msg->size-msg->pos));
752 bytes_read = msg->size-msg->pos;
753 msg->pos+=(msg->size-msg->pos);
757 memcpy(buf,&msg->buf[msg->pos],max);
762 if (msg->pos==msg->size)
764 if (NULL!=msg->transmit_cont)
765 msg->transmit_cont (msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
766 remove_http_message(ps,msg);
773 * Process GET or PUT request received via MHD. For
774 * GET, queue response that will send back our pending
775 * messages. For PUT, process incoming data and send
776 * to GNUnet core. In either case, check if a session
777 * already exists and create a new one if not.
780 mdh_access_cb (void *cls,
781 struct MHD_Connection *mhd_connection,
785 const char *upload_data,
786 size_t * upload_data_size, void **httpSessionCache)
788 struct Plugin *plugin = cls;
789 struct MHD_Response *response;
790 const union MHD_ConnectionInfo * conn_info;
792 struct sockaddr_in *addrin;
793 struct sockaddr_in6 *addrin6;
795 char address[INET6_ADDRSTRLEN+14];
796 struct GNUNET_PeerIdentity pi_in;
799 struct IPv4HttpAddress ipv4addr;
800 struct IPv6HttpAddress ipv6addr;
802 struct HTTP_PeerContext *pc;
803 struct Session *ps = NULL;
804 struct Session *ps_tmp = NULL;
807 int send_error_to_client;
811 GNUNET_assert(cls !=NULL);
812 send_error_to_client = GNUNET_NO;
814 if (NULL == *httpSessionCache)
816 /* check url for peer identity , if invalid send HTTP 404*/
817 size_t len = strlen(&url[1]);
818 char * peer = GNUNET_malloc(104+1);
820 if ((len>104) && (url[104]==';'))
822 char * id = GNUNET_malloc((len-104)+1);
823 strcpy(id,&url[105]);
824 memcpy(peer,&url[1],103);
826 id_num = strtoul ( id, NULL , 10);
829 res = GNUNET_CRYPTO_hash_from_string (peer, &(pi_in.hashPubKey));
831 if ( GNUNET_SYSERR == res )
833 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
834 res = MHD_queue_response (mhd_connection, MHD_HTTP_NOT_FOUND, response);
835 MHD_destroy_response (response);
836 #if DEBUG_CONNECTIONS
838 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");
840 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
847 ps = *httpSessionCache;
848 pc = ps->peercontext;
851 if (NULL == *httpSessionCache)
853 /* get peer context */
854 pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &pi_in.hashPubKey);
858 pc = GNUNET_malloc(sizeof (struct HTTP_PeerContext));
860 pc->session_id_counter=1;
861 pc->last_session = NULL;
862 memcpy(&pc->identity, &pi_in, sizeof(struct GNUNET_PeerIdentity));
863 GNUNET_CONTAINER_multihashmap_put(plugin->peers, &pc->identity.hashPubKey, pc, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
864 GNUNET_STATISTICS_update (plugin->env->stats,
865 gettext_noop ("# HTTP peers active"),
870 conn_info = MHD_get_connection_info(mhd_connection, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
871 /* Incoming IPv4 connection */
872 if ( AF_INET == conn_info->client_addr->sin_family)
874 addrin = conn_info->client_addr;
875 inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
876 memcpy(&ipv4addr.ipv4_addr,&(addrin->sin_addr),sizeof(struct in_addr));
877 ipv4addr.u_port = addrin->sin_port;
879 addr_len = sizeof(struct IPv4HttpAddress);
881 /* Incoming IPv6 connection */
882 if ( AF_INET6 == conn_info->client_addr->sin_family)
884 addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
885 inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
886 memcpy(&ipv6addr.ipv6_addr,&(addrin6->sin6_addr),sizeof(struct in6_addr));
887 ipv6addr.u6_port = addrin6->sin6_port;
889 addr_len = sizeof(struct IPv6HttpAddress);
893 /* only inbound sessions here */
898 if ((ps_tmp->direction==INBOUND) && (ps_tmp->session_id == id_num) && (id_num!=0))
900 if ((ps_tmp->recv_force_disconnect!=GNUNET_YES) && (ps_tmp->send_force_disconnect!=GNUNET_YES))
909 ps = GNUNET_malloc(sizeof (struct Session));
910 ps->addr = GNUNET_malloc(addr_len);
911 memcpy(ps->addr,addr,addr_len);
912 ps->addrlen = addr_len;
913 ps->direction=INBOUND;
914 ps->pending_msgs_head = NULL;
915 ps->pending_msgs_tail = NULL;
916 ps->send_connected=GNUNET_NO;
917 ps->send_active=GNUNET_NO;
918 ps->recv_connected=GNUNET_NO;
919 ps->recv_active=GNUNET_NO;
921 ps->session_id =id_num;
922 ps->url = create_url (plugin, ps->addr, ps->addrlen, ps->session_id);
923 GNUNET_CONTAINER_DLL_insert(pc->head,pc->tail,ps);
924 GNUNET_STATISTICS_update (plugin->env->stats,
925 gettext_noop ("# HTTPS inbound sessions for peers active"),
930 *httpSessionCache = ps;
931 if (ps->msgtok==NULL)
932 ps->msgtok = GNUNET_SERVER_mst_create (&mhd_write_mst_cb, ps);
934 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: HTTPS Daemon has new an incoming `%s' request from peer `%s' (`%s')\n",
937 GNUNET_i2s(&pc->identity),
938 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen));
942 /* Is it a PUT or a GET request */
943 if (0 == strcmp (MHD_HTTP_METHOD_PUT, method))
945 if (ps->recv_force_disconnect == GNUNET_YES)
947 #if DEBUG_CONNECTIONS
948 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound connection was forced to disconnect\n",ps);
950 ps->recv_active = GNUNET_NO;
953 if ((*upload_data_size == 0) && (ps->recv_active==GNUNET_NO))
955 ps->recv_endpoint = mhd_connection;
956 ps->recv_connected = GNUNET_YES;
957 ps->recv_active = GNUNET_YES;
958 ps->recv_force_disconnect = GNUNET_NO;
959 #if DEBUG_CONNECTIONS
960 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound PUT connection connected\n",ps);
965 /* Transmission of all data complete */
966 if ((*upload_data_size == 0) && (ps->recv_active == GNUNET_YES))
968 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
969 res = MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
970 #if DEBUG_CONNECTIONS
971 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Sent HTTP/1.1: 200 OK as PUT Response\n",ps);
973 MHD_destroy_response (response);
974 ps->recv_active=GNUNET_NO;
979 if ((*upload_data_size > 0) && (ps->recv_active == GNUNET_YES))
981 res = GNUNET_SERVER_mst_receive(ps->msgtok, ps, upload_data,*upload_data_size, GNUNET_NO, GNUNET_NO);
982 (*upload_data_size) = 0;
988 if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
990 if (ps->send_force_disconnect == GNUNET_YES)
992 #if DEBUG_CONNECTIONS
993 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound connection was forced to disconnect\n",ps);
995 ps->send_active = GNUNET_NO;
998 ps->send_connected = GNUNET_YES;
999 ps->send_active = GNUNET_YES;
1000 ps->send_endpoint = mhd_connection;
1001 ps->send_force_disconnect = GNUNET_NO;
1002 #if DEBUG_CONNECTIONS
1003 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound GET connection connected\n",ps);
1005 response = MHD_create_response_from_callback(-1,32 * 1024, &mhd_send_callback, ps, NULL);
1006 res = MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
1007 MHD_destroy_response (response);
1014 * Function that queries MHD's select sets and
1015 * starts the task waiting for them.
1017 static GNUNET_SCHEDULER_TaskIdentifier
1018 http_server_daemon_prepare (void * cls, struct MHD_Daemon *daemon_handle)
1020 struct Plugin *plugin = cls;
1021 GNUNET_SCHEDULER_TaskIdentifier ret;
1025 struct GNUNET_NETWORK_FDSet *wrs;
1026 struct GNUNET_NETWORK_FDSet *wws;
1027 struct GNUNET_NETWORK_FDSet *wes;
1029 unsigned long long timeout;
1031 struct GNUNET_TIME_Relative tv;
1033 GNUNET_assert(cls !=NULL);
1034 ret = GNUNET_SCHEDULER_NO_TASK;
1038 wrs = GNUNET_NETWORK_fdset_create ();
1039 wes = GNUNET_NETWORK_fdset_create ();
1040 wws = GNUNET_NETWORK_fdset_create ();
1042 GNUNET_assert (MHD_YES ==
1043 MHD_get_fdset (daemon_handle,
1048 haveto = MHD_get_timeout (daemon_handle, &timeout);
1049 if (haveto == MHD_YES)
1050 tv.value = (uint64_t) timeout;
1052 tv = GNUNET_TIME_UNIT_FOREVER_REL;
1053 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
1054 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
1055 GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
1056 if (daemon_handle == plugin->http_server_daemon_v4)
1058 if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1060 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v4);
1061 plugin->http_server_daemon_v4 = GNUNET_SCHEDULER_NO_TASK;
1064 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1065 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1066 GNUNET_SCHEDULER_NO_TASK,
1070 &http_server_daemon_v4_run,
1073 if (daemon_handle == plugin->http_server_daemon_v6)
1075 if (plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1077 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v6);
1078 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1081 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1082 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1083 GNUNET_SCHEDULER_NO_TASK,
1087 &http_server_daemon_v6_run,
1090 GNUNET_NETWORK_fdset_destroy (wrs);
1091 GNUNET_NETWORK_fdset_destroy (wws);
1092 GNUNET_NETWORK_fdset_destroy (wes);
1097 * Call MHD to process pending requests and then go back
1098 * and schedule the next run.
1100 static void http_server_daemon_v4_run (void *cls,
1101 const struct GNUNET_SCHEDULER_TaskContext *tc)
1103 struct Plugin *plugin = cls;
1105 GNUNET_assert(cls !=NULL);
1106 plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;
1108 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1111 GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v4));
1112 plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
1118 * Call MHD to process pending requests and then go back
1119 * and schedule the next run.
1121 static void http_server_daemon_v6_run (void *cls,
1122 const struct GNUNET_SCHEDULER_TaskContext *tc)
1124 struct Plugin *plugin = cls;
1126 GNUNET_assert(cls !=NULL);
1127 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1129 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1132 GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v6));
1133 plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
1137 static size_t curl_get_header_cb( void *ptr, size_t size, size_t nmemb, void *stream)
1139 struct Session * ps = stream;
1141 long http_result = 0;
1143 /* Getting last http result code */
1144 if (ps->recv_connected==GNUNET_NO)
1146 GNUNET_assert(NULL!=ps);
1147 res = curl_easy_getinfo(ps->recv_endpoint, CURLINFO_RESPONSE_CODE, &http_result);
1148 if (CURLE_OK == res)
1150 if (http_result == 200)
1152 ps->recv_connected = GNUNET_YES;
1153 ps->recv_active = GNUNET_YES;
1154 #if DEBUG_CONNECTIONS
1155 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: connected to recieve data\n",ps);
1157 // Calling send_check_connections again since receive is established
1158 send_check_connections (ps->peercontext->plugin, ps);
1165 size_t len = size * nmemb;
1168 if ((size * nmemb) < SIZE_MAX)
1169 tmp = GNUNET_malloc (len+1);
1171 if ((tmp != NULL) && (len > 0))
1173 memcpy(tmp,ptr,len);
1176 if (tmp[len-2] == 13)
1180 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Header: %s\n",ps,tmp);
1187 return size * nmemb;
1190 static size_t curl_put_header_cb( void *ptr, size_t size, size_t nmemb, void *stream)
1192 struct Session * ps = stream;
1195 size_t len = size * nmemb;
1196 long http_result = 0;
1199 /* Getting last http result code */
1200 GNUNET_assert(NULL!=ps);
1201 res = curl_easy_getinfo(ps->send_endpoint, CURLINFO_RESPONSE_CODE, &http_result);
1202 if (CURLE_OK == res)
1204 if ((http_result == 100) && (ps->send_connected==GNUNET_NO))
1206 ps->send_connected = GNUNET_YES;
1207 ps->send_active = GNUNET_YES;
1208 #if DEBUG_CONNECTIONS
1209 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: connected to send data\n",ps);
1212 if ((http_result == 200) && (ps->send_connected==GNUNET_YES))
1214 ps->send_connected = GNUNET_NO;
1215 ps->send_active = GNUNET_NO;
1216 #if DEBUG_CONNECTIONS
1217 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: sending disconnected\n",ps);
1223 if ((size * nmemb) < SIZE_MAX)
1224 tmp = GNUNET_malloc (len+1);
1226 if ((tmp != NULL) && (len > 0))
1228 memcpy(tmp,ptr,len);
1231 if (tmp[len-2] == 13)
1238 return size * nmemb;
1242 * Callback method used with libcurl
1243 * Method is called when libcurl needs to read data during sending
1244 * @param stream pointer where to write data
1245 * @param size size of an individual element
1246 * @param nmemb count of elements that can be written to the buffer
1247 * @param ptr source pointer, passed to the libcurl handle
1248 * @return bytes written to stream
1250 static size_t curl_send_cb(void *stream, size_t size, size_t nmemb, void *ptr)
1252 struct Session * ps = ptr;
1253 struct HTTP_Message * msg = ps->pending_msgs_tail;
1257 if (ps->send_active == GNUNET_NO)
1258 return CURL_READFUNC_PAUSE;
1261 if ((ps->pending_msgs_tail == NULL) && (ps->send_active == GNUNET_YES))
1263 #if DEBUG_CONNECTIONS
1264 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: No Message to send, pausing connection\n",ps);
1266 ps->send_active = GNUNET_NO;
1267 return CURL_READFUNC_PAUSE;
1270 msg = ps->pending_msgs_tail;
1272 if (msg->pos < msg->size)
1274 /* data fit in buffer */
1275 if ((msg->size - msg->pos) <= (size * nmemb))
1277 len = (msg->size - msg->pos);
1278 memcpy(stream, &msg->buf[msg->pos], len);
1285 memcpy(stream, &msg->buf[msg->pos], len);
1290 /* no data to send */
1296 if ( msg->pos == msg->size)
1298 #if DEBUG_CONNECTIONS
1299 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Message with %u bytes sent, removing message from queue \n",ps, msg->pos);
1301 /* Calling transmit continuation */
1302 if (( NULL != ps->pending_msgs_tail) && (NULL != ps->pending_msgs_tail->transmit_cont))
1303 msg->transmit_cont (ps->pending_msgs_tail->transmit_cont_cls,&(ps->peercontext)->identity,GNUNET_OK);
1304 remove_http_message(ps, msg);
1309 static void curl_receive_mst_cb (void *cls,
1311 const struct GNUNET_MessageHeader *message)
1313 struct Session *ps = cls;
1314 struct HTTP_PeerContext *pc = ps->peercontext;
1315 GNUNET_assert(ps != NULL);
1316 GNUNET_assert(pc != NULL);
1318 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1319 "Connection %X: Forwarding message to transport service, type %u and size %u from `%s' (`%s')\n",
1321 ntohs(message->type),
1322 ntohs(message->size),
1323 GNUNET_i2s(&(pc->identity)),http_plugin_address_to_string(NULL,ps->addr,ps->addrlen));
1325 pc->plugin->env->receive (pc->plugin->env->cls,
1334 * Callback method used with libcurl
1335 * Method is called when libcurl needs to write data during sending
1336 * @param stream pointer where to write data
1337 * @param size size of an individual element
1338 * @param nmemb count of elements that can be written to the buffer
1339 * @param ptr destination pointer, passed to the libcurl handle
1340 * @return bytes read from stream
1342 static size_t curl_receive_cb( void *stream, size_t size, size_t nmemb, void *ptr)
1344 struct Session * ps = ptr;
1345 #if DEBUG_CONNECTIONS
1346 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: %u bytes received\n",ps, size*nmemb);
1348 GNUNET_SERVER_mst_receive(ps->msgtok, ps, stream, size*nmemb, GNUNET_NO, GNUNET_NO);
1349 return (size * nmemb);
1353 static void curl_perform (void *cls,
1354 const struct GNUNET_SCHEDULER_TaskContext *tc)
1356 struct Plugin *plugin = cls;
1357 static unsigned int handles_last_run;
1359 struct CURLMsg *msg;
1361 struct Session *ps = NULL;
1362 struct HTTP_PeerContext *pc = NULL;
1363 struct HTTP_Message * cur_msg = NULL;
1367 GNUNET_assert(cls !=NULL);
1369 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
1370 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1376 mret = curl_multi_perform (plugin->multi_handle, &running);
1377 if ((running < handles_last_run) && (running>0))
1382 msg = curl_multi_info_read (plugin->multi_handle, &running);
1385 /* get session for affected curl handle */
1386 GNUNET_assert ( msg->easy_handle != NULL );
1387 curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &tmp);
1388 ps = (struct Session *) tmp;
1389 GNUNET_assert ( ps != NULL );
1390 pc = ps->peercontext;
1391 GNUNET_assert ( pc != NULL );
1396 if ( (msg->data.result != CURLE_OK) &&
1397 (msg->data.result != CURLE_GOT_NOTHING) )
1399 /* sending msg failed*/
1400 if (msg->easy_handle == ps->send_endpoint)
1402 #if DEBUG_CONNECTIONS
1403 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
1404 _("Connection %X: HTTPS PUT to peer `%s' (`%s') failed: `%s' `%s'\n"),
1406 GNUNET_i2s(&pc->identity),
1407 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1408 "curl_multi_perform",
1409 curl_easy_strerror (msg->data.result));
1411 ps->send_connected = GNUNET_NO;
1412 ps->send_active = GNUNET_NO;
1413 curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint);
1414 //curl_easy_cleanup(ps->send_endpoint);
1415 //ps->send_endpoint=NULL;
1416 cur_msg = ps->pending_msgs_tail;
1417 if (( NULL != cur_msg) && ( NULL != cur_msg->transmit_cont))
1418 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
1420 /* GET connection failed */
1421 if (msg->easy_handle == ps->recv_endpoint)
1423 #if DEBUG_CONNECTIONS
1424 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
1425 _("Connection %X: HTTPS GET to peer `%s' (`%s') failed: `%s' `%s'\n"),
1427 GNUNET_i2s(&pc->identity),
1428 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1429 "curl_multi_perform",
1430 curl_easy_strerror (msg->data.result));
1432 ps->recv_connected = GNUNET_NO;
1433 ps->recv_active = GNUNET_NO;
1434 curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint);
1435 //curl_easy_cleanup(ps->recv_endpoint);
1436 //ps->recv_endpoint=NULL;
1441 if (msg->easy_handle == ps->send_endpoint)
1443 GNUNET_assert (CURLE_OK == curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result));
1444 #if DEBUG_CONNECTIONS
1445 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1446 "Connection %X: HTTPS PUT connection to peer `%s' (`%s') was closed with HTTP code %u\n",
1448 GNUNET_i2s(&pc->identity),
1449 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1452 /* Calling transmit continuation */
1453 cur_msg = ps->pending_msgs_tail;
1454 if (( NULL != cur_msg) && (NULL != cur_msg->transmit_cont))
1456 /* HTTP 1xx : Last message before here was informational */
1457 if ((http_result >=100) && (http_result < 200))
1458 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
1459 /* HTTP 2xx: successful operations */
1460 if ((http_result >=200) && (http_result < 300))
1461 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
1462 /* HTTP 3xx..5xx: error */
1463 if ((http_result >=300) && (http_result < 600))
1464 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
1466 ps->send_connected = GNUNET_NO;
1467 ps->send_active = GNUNET_NO;
1468 curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint);
1469 //curl_easy_cleanup(ps->send_endpoint);
1470 //ps->send_endpoint =NULL;
1472 if (msg->easy_handle == ps->recv_endpoint)
1474 #if DEBUG_CONNECTIONS
1475 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1476 "Connection %X: HTTP GET connection to peer `%s' (`%s') was closed with HTTP code %u\n",
1478 GNUNET_i2s(&pc->identity),
1479 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1482 ps->recv_connected = GNUNET_NO;
1483 ps->recv_active = GNUNET_NO;
1484 curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint);
1485 //curl_easy_cleanup(ps->recv_endpoint);
1486 //ps->recv_endpoint=NULL;
1489 if ((ps->recv_connected == GNUNET_NO) && (ps->send_connected == GNUNET_NO))
1490 remove_session (pc, ps, GNUNET_YES, GNUNET_SYSERR);
1497 while ( (running > 0) );
1499 handles_last_run = running;
1501 while (mret == CURLM_CALL_MULTI_PERFORM);
1502 curl_schedule(plugin);
1507 * Function setting up file descriptors and scheduling task to run
1508 * @param ses session to send data to
1509 * @return GNUNET_SYSERR for hard failure, GNUNET_OK for ok
1512 http_plugin_disconnect (void *cls,
1513 const struct GNUNET_PeerIdentity *target)
1517 struct Plugin *plugin = cls;
1518 struct HTTP_PeerContext *pc = NULL;
1519 struct Session *ps = NULL;
1520 //struct Session *tmp = NULL;
1522 pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &target->hashPubKey);
1529 /* Telling transport that session is getting disconnected */
1530 plugin->env->session_end(plugin, target, ps);
1531 if (ps->direction==OUTBOUND)
1533 if (ps->send_endpoint!=NULL)
1535 //GNUNET_assert(CURLM_OK == curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint));
1536 //curl_easy_cleanup(ps->send_endpoint);
1537 //ps->send_endpoint=NULL;
1538 ps->send_force_disconnect = GNUNET_YES;
1540 if (ps->recv_endpoint!=NULL)
1542 //GNUNET_assert(CURLM_OK == curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint));
1543 //curl_easy_cleanup(ps->recv_endpoint);
1544 //ps->recv_endpoint=NULL;
1545 ps->recv_force_disconnect = GNUNET_YES;
1549 if (ps->direction==INBOUND)
1551 ps->recv_force_disconnect = GNUNET_YES;
1552 ps->send_force_disconnect = GNUNET_YES;
1555 while (ps->pending_msgs_head!=NULL)
1557 remove_http_message(ps, ps->pending_msgs_head);
1559 ps->recv_active = GNUNET_NO;
1560 ps->send_active = GNUNET_NO;
1566 static int curl_schedule(void *cls)
1568 struct Plugin *plugin = cls;
1573 struct GNUNET_NETWORK_FDSet *grs;
1574 struct GNUNET_NETWORK_FDSet *gws;
1578 GNUNET_assert(cls !=NULL);
1580 /* Cancel previous scheduled task */
1581 if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
1583 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
1584 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
1590 mret = curl_multi_fdset (plugin->multi_handle, &rs, &ws, &es, &max);
1591 if (mret != CURLM_OK)
1593 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1594 _("%s failed at %s:%d: `%s'\n"),
1595 "curl_multi_fdset", __FILE__, __LINE__,
1596 curl_multi_strerror (mret));
1597 return GNUNET_SYSERR;
1599 mret = curl_multi_timeout (plugin->multi_handle, &to);
1600 if (mret != CURLM_OK)
1602 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1603 _("%s failed at %s:%d: `%s'\n"),
1604 "curl_multi_timeout", __FILE__, __LINE__,
1605 curl_multi_strerror (mret));
1606 return GNUNET_SYSERR;
1609 grs = GNUNET_NETWORK_fdset_create ();
1610 gws = GNUNET_NETWORK_fdset_create ();
1611 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
1612 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
1613 plugin->http_curl_task = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1614 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1615 GNUNET_SCHEDULER_NO_TASK,
1616 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),
1621 GNUNET_NETWORK_fdset_destroy (gws);
1622 GNUNET_NETWORK_fdset_destroy (grs);
1627 * Function setting up curl handle and selecting message to send
1629 * @param ses session to send data to
1630 * @param con connection
1631 * @return GNUNET_SYSERR on failure, GNUNET_NO if connecting, GNUNET_YES if ok
1633 static ssize_t send_check_connections (void *cls, struct Session *ps)
1635 struct Plugin *plugin = cls;
1637 struct HTTP_Message * msg;
1639 struct GNUNET_TIME_Relative timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
1641 GNUNET_assert(cls !=NULL);
1643 if (ps->direction == OUTBOUND)
1645 /* RECV DIRECTION */
1646 /* Check if session is connected to receive data, otherwise connect to peer */
1647 if (ps->recv_connected == GNUNET_NO)
1649 int fresh = GNUNET_NO;
1650 if (ps->recv_endpoint == NULL)
1653 ps->recv_endpoint = curl_easy_init();
1656 curl_easy_setopt(ps->recv_endpoint, CURLOPT_VERBOSE, 1L);
1658 curl_easy_setopt(ps->recv_endpoint, CURLOPT_URL, ps->url);
1659 curl_easy_setopt (ps->recv_endpoint, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
1660 //curl_easy_setopt (ps->recv_endpoint, CURLOPT_SSL_CIPHER_LIST, cipher_suite);
1661 curl_easy_setopt(ps->recv_endpoint, CURLOPT_SSL_VERIFYPEER, 0);
1662 curl_easy_setopt(ps->recv_endpoint, CURLOPT_SSL_VERIFYHOST, 0);
1663 curl_easy_setopt(ps->recv_endpoint, CURLOPT_HEADERFUNCTION, &curl_get_header_cb);
1664 curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEHEADER, ps);
1665 curl_easy_setopt(ps->recv_endpoint, CURLOPT_READFUNCTION, curl_send_cb);
1666 curl_easy_setopt(ps->recv_endpoint, CURLOPT_READDATA, ps);
1667 curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEFUNCTION, curl_receive_cb);
1668 curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEDATA, ps);
1669 curl_easy_setopt(ps->recv_endpoint, CURLOPT_TIMEOUT, (long) timeout.value);
1670 curl_easy_setopt(ps->recv_endpoint, CURLOPT_PRIVATE, ps);
1671 curl_easy_setopt(ps->recv_endpoint, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
1672 curl_easy_setopt(ps->recv_endpoint, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
1674 if (fresh==GNUNET_YES)
1676 mret = curl_multi_add_handle(plugin->multi_handle, ps->recv_endpoint);
1677 if (mret != CURLM_OK)
1679 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1680 _("Connection: %X: %s failed at %s:%d: `%s'\n"),
1682 "curl_multi_add_handle", __FILE__, __LINE__,
1683 curl_multi_strerror (mret));
1684 return GNUNET_SYSERR;
1687 if (curl_schedule (plugin) == GNUNET_SYSERR)
1689 #if DEBUG_CONNECTIONS
1690 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: could not schedule curl task\n",ps);
1692 return GNUNET_SYSERR;
1694 #if DEBUG_CONNECTIONS
1695 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound not connected, initiating connection\n",ps);
1699 /* waiting for receive direction */
1700 if (ps->recv_connected==GNUNET_NO)
1703 /* SEND DIRECTION */
1704 /* Check if session is connected to send data, otherwise connect to peer */
1705 if ((ps->send_connected == GNUNET_YES) && (ps->send_endpoint!= NULL))
1707 if (ps->send_active == GNUNET_YES)
1709 #if DEBUG_CONNECTIONS
1710 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound active, enqueueing message\n",ps);
1714 if (ps->send_active == GNUNET_NO)
1716 #if DEBUG_CONNECTIONS
1717 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound paused, unpausing existing connection and enqueueing message\n",ps);
1719 if (CURLE_OK == curl_easy_pause(ps->send_endpoint,CURLPAUSE_CONT))
1721 ps->send_active=GNUNET_YES;
1725 return GNUNET_SYSERR;
1728 /* not connected, initiate connection */
1729 if (ps->send_connected==GNUNET_NO)
1731 int fresh = GNUNET_NO;
1732 if (NULL == ps->send_endpoint)
1734 ps->send_endpoint = curl_easy_init();
1737 GNUNET_assert (ps->send_endpoint != NULL);
1738 GNUNET_assert (NULL != ps->pending_msgs_tail);
1739 #if DEBUG_CONNECTIONS
1740 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound not connected, initiating connection\n",ps);
1742 ps->send_active = GNUNET_NO;
1743 msg = ps->pending_msgs_tail;
1746 curl_easy_setopt(ps->send_endpoint, CURLOPT_VERBOSE, 1L);
1748 curl_easy_setopt(ps->send_endpoint, CURLOPT_URL, ps->url);
1749 curl_easy_setopt(ps->send_endpoint, CURLOPT_PUT, 1L);
1750 curl_easy_setopt(ps->send_endpoint, CURLOPT_HEADERFUNCTION, &curl_put_header_cb);
1751 curl_easy_setopt(ps->send_endpoint, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
1752 curl_easy_setopt(ps->send_endpoint, CURLOPT_SSL_VERIFYPEER, 0);
1753 curl_easy_setopt(ps->send_endpoint, CURLOPT_SSL_VERIFYHOST, 0);
1755 curl_easy_setopt(ps->send_endpoint, CURLOPT_WRITEHEADER, ps);
1756 curl_easy_setopt(ps->send_endpoint, CURLOPT_READFUNCTION, curl_send_cb);
1757 curl_easy_setopt(ps->send_endpoint, CURLOPT_READDATA, ps);
1758 curl_easy_setopt(ps->send_endpoint, CURLOPT_WRITEFUNCTION, curl_receive_cb);
1759 curl_easy_setopt(ps->send_endpoint, CURLOPT_READDATA, ps);
1760 curl_easy_setopt(ps->send_endpoint, CURLOPT_TIMEOUT, (long) timeout.value);
1761 curl_easy_setopt(ps->send_endpoint, CURLOPT_PRIVATE, ps);
1762 curl_easy_setopt(ps->send_endpoint, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
1763 curl_easy_setopt(ps->send_endpoint, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
1765 if (fresh==GNUNET_YES)
1767 mret = curl_multi_add_handle(plugin->multi_handle, ps->send_endpoint);
1768 if (mret != CURLM_OK)
1770 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1771 _("Connection: %X: %s failed at %s:%d: `%s'\n"),
1773 "curl_multi_add_handle", __FILE__, __LINE__,
1774 curl_multi_strerror (mret));
1775 return GNUNET_SYSERR;
1779 if (curl_schedule (plugin) == GNUNET_SYSERR)
1780 return GNUNET_SYSERR;
1783 if (ps->direction == INBOUND)
1785 GNUNET_assert (NULL != ps->pending_msgs_tail);
1786 if ((ps->recv_connected==GNUNET_YES) && (ps->send_connected==GNUNET_YES) &&
1787 (ps->recv_force_disconnect==GNUNET_NO) && (ps->recv_force_disconnect==GNUNET_NO))
1790 return GNUNET_SYSERR;
1793 static struct Session * send_select_session (void * cls, struct HTTP_PeerContext *pc, const void * addr, size_t addrlen, int force_address, struct Session * session)
1795 struct Session * tmp = NULL;
1796 int addr_given = GNUNET_NO;
1798 if ((addr!=NULL) && (addrlen>0))
1799 addr_given = GNUNET_YES;
1801 if (force_address == GNUNET_YES)
1803 /* check session given as argument */
1804 if ((session != NULL) && (addr_given == GNUNET_YES))
1806 if (0 == memcmp(session->addr, addr, addrlen))
1808 /* connection can not be used, since it is disconnected */
1809 if ((session->recv_force_disconnect==GNUNET_NO) && (session->send_force_disconnect==GNUNET_NO))
1811 #if DEBUG_SESSION_SELECTION
1812 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using session passed by transport to send to forced address \n", session);
1818 /* check last session used */
1819 if ((pc->last_session != NULL)&& (addr_given == GNUNET_YES))
1821 if (0 == memcmp(pc->last_session->addr, addr, addrlen))
1823 /* connection can not be used, since it is disconnected */
1824 if ((pc->last_session->recv_force_disconnect==GNUNET_NO) && (pc->last_session->send_force_disconnect==GNUNET_NO))
1826 #if DEBUG_SESSION_SELECTION
1827 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using last session used to send to forced address \n", pc->last_session);
1829 return pc->last_session;
1833 /* find session in existing sessions */
1835 while ((tmp!=NULL) && (addr_given == GNUNET_YES))
1838 if (0 == memcmp(tmp->addr, addr, addrlen))
1840 /* connection can not be used, since it is disconnected */
1841 if ((tmp->recv_force_disconnect==GNUNET_NO) && (tmp->send_force_disconnect==GNUNET_NO))
1843 #if DEBUG_SESSION_SELECTION
1844 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using existing session to send to forced address \n", session);
1852 /* no session to use */
1855 if ((force_address == GNUNET_NO) || (force_address == GNUNET_SYSERR))
1857 /* check session given as argument */
1858 if (session != NULL)
1860 /* connection can not be used, since it is disconnected */
1861 if ((session->recv_force_disconnect==GNUNET_NO) && (session->send_force_disconnect==GNUNET_NO))
1863 #if DEBUG_SESSION_SELECTION
1864 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using session passed by transport to send not-forced address \n", session);
1870 /* check last session used */
1871 if (pc->last_session != NULL)
1873 /* connection can not be used, since it is disconnected */
1874 if ((pc->last_session->recv_force_disconnect==GNUNET_NO) && (pc->last_session->send_force_disconnect==GNUNET_NO))
1876 #if DEBUG_SESSION_SELECTION
1877 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using last session to send to not-forced address \n", pc->last_session);
1879 return pc->last_session;
1882 /* find session in existing sessions */
1886 /* connection can not be used, since it is disconnected */
1887 if ((tmp->recv_force_disconnect==GNUNET_NO) && (tmp->send_force_disconnect==GNUNET_NO))
1889 #if DEBUG_SESSION_SELECTION
1890 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using existing session to send to not-forced address \n", tmp);
1902 * Function that can be used by the transport service to transmit
1903 * a message using the plugin. Note that in the case of a
1904 * peer disconnecting, the continuation MUST be called
1905 * prior to the disconnect notification itself. This function
1906 * will be called with this peer's HELLO message to initiate
1907 * a fresh connection to another peer.
1909 * @param cls closure
1910 * @param target who should receive this message
1911 * @param msgbuf the message to transmit
1912 * @param msgbuf_size number of bytes in 'msgbuf'
1913 * @param priority how important is the message (most plugins will
1914 * ignore message priority and just FIFO)
1915 * @param timeout how long to wait at most for the transmission (does not
1916 * require plugins to discard the message after the timeout,
1917 * just advisory for the desired delay; most plugins will ignore
1919 * @param session which session must be used (or NULL for "any")
1920 * @param addr the address to use (can be NULL if the plugin
1921 * is "on its own" (i.e. re-use existing TCP connection))
1922 * @param addrlen length of the address in bytes
1923 * @param force_address GNUNET_YES if the plugin MUST use the given address,
1924 * GNUNET_NO means the plugin may use any other address and
1925 * GNUNET_SYSERR means that only reliable existing
1926 * bi-directional connections should be used (regardless
1928 * @param cont continuation to call once the message has
1929 * been transmitted (or if the transport is ready
1930 * for the next transmission call; or if the
1931 * peer disconnected...); can be NULL
1932 * @param cont_cls closure for cont
1933 * @return number of bytes used (on the physical network, with overheads);
1934 * -1 on hard errors (i.e. address invalid); 0 is a legal value
1935 * and does NOT mean that the message was not transmitted (DV)
1938 http_plugin_send (void *cls,
1939 const struct GNUNET_PeerIdentity *target,
1942 unsigned int priority,
1943 struct GNUNET_TIME_Relative to,
1944 struct Session *session,
1948 GNUNET_TRANSPORT_TransmitContinuation cont,
1951 struct Plugin *plugin = cls;
1952 struct HTTP_Message *msg;
1953 struct HTTP_PeerContext * pc;
1954 struct Session * ps = NULL;
1956 GNUNET_assert(cls !=NULL);
1959 char * force = GNUNET_malloc(40);
1960 if (force_address == GNUNET_YES)
1961 strcpy(force,"forced addr.");
1962 if (force_address == GNUNET_NO)
1963 strcpy(force,"any addr.");
1964 if (force_address == GNUNET_SYSERR)
1965 strcpy(force,"reliable bi-direc. address addr.");
1967 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Transport tells me to send %u bytes to `%s' using %s (%s) and session: %X\n",
1971 http_plugin_address_to_string(NULL, addr, addrlen),
1977 pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &target->hashPubKey);
1981 pc = GNUNET_malloc(sizeof (struct HTTP_PeerContext));
1982 pc->plugin = plugin;
1983 pc->session_id_counter=1;
1984 pc->last_session = NULL;
1985 memcpy(&pc->identity, target, sizeof(struct GNUNET_PeerIdentity));
1986 GNUNET_CONTAINER_multihashmap_put(plugin->peers, &pc->identity.hashPubKey, pc, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1987 GNUNET_STATISTICS_update (plugin->env->stats,
1988 gettext_noop ("# HTTP peers active"),
1993 ps = send_select_session (plugin, pc, addr, addrlen, force_address, session);
1995 /* session not existing, but address forced -> creating new session */
1998 if ((addr!=NULL) && (addrlen!=0))
2000 ps = GNUNET_malloc(sizeof (struct Session));
2001 #if DEBUG_SESSION_SELECTION
2002 if (force_address == GNUNET_YES)
2003 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection & forced address: creating new session %X to peer %s\n", ps, GNUNET_i2s(target));
2004 if (force_address != GNUNET_YES)
2005 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection: creating new session %X to peer %s\n", ps, GNUNET_i2s(target));
2007 if ((addrlen!=0) && (addr!=NULL))
2009 ps->addr = GNUNET_malloc(addrlen);
2010 memcpy(ps->addr,addr,addrlen);
2011 ps->addrlen = addrlen;
2018 ps->direction=OUTBOUND;
2019 ps->recv_connected = GNUNET_NO;
2020 ps->recv_force_disconnect = GNUNET_NO;
2021 ps->send_connected = GNUNET_NO;
2022 ps->send_force_disconnect = GNUNET_NO;
2023 ps->pending_msgs_head = NULL;
2024 ps->pending_msgs_tail = NULL;
2026 ps->session_id = pc->session_id_counter;
2027 pc->session_id_counter++;
2028 ps->url = create_url (plugin, ps->addr, ps->addrlen, ps->session_id);
2029 if (ps->msgtok == NULL)
2030 ps->msgtok = GNUNET_SERVER_mst_create (&curl_receive_mst_cb, ps);
2031 GNUNET_CONTAINER_DLL_insert(pc->head,pc->tail,ps);
2034 GNUNET_STATISTICS_update (plugin->env->stats,
2035 gettext_noop ("# HTTP outbound sessions for peers active"),
2042 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));
2044 return GNUNET_SYSERR;
2049 msg = GNUNET_malloc (sizeof (struct HTTP_Message) + msgbuf_size);
2051 msg->size = msgbuf_size;
2053 msg->buf = (char *) &msg[1];
2054 msg->transmit_cont = cont;
2055 msg->transmit_cont_cls = cont_cls;
2056 memcpy (msg->buf,msgbuf, msgbuf_size);
2057 GNUNET_CONTAINER_DLL_insert(ps->pending_msgs_head,ps->pending_msgs_tail,msg);
2059 if (send_check_connections (plugin, ps) != GNUNET_SYSERR)
2061 if (force_address != GNUNET_YES)
2062 pc->last_session = ps;
2064 if (pc->last_session==NULL)
2065 pc->last_session = ps;
2069 return GNUNET_SYSERR;
2075 * Function that can be used to force the plugin to disconnect
2076 * from the given peer and cancel all previous transmissions
2077 * (and their continuationc).
2079 * @param cls closure
2080 * @param target peer from which to disconnect
2083 * Convert the transports address to a nice, human-readable
2086 * @param cls closure
2087 * @param type name of the transport that generated the address
2088 * @param addr one of the addresses of the host, NULL for the last address
2089 * the specific address format depends on the transport
2090 * @param addrlen length of the address
2091 * @param numeric should (IP) addresses be displayed in numeric form?
2092 * @param timeout after how long should we give up?
2093 * @param asc function to call on each string
2094 * @param asc_cls closure for asc
2097 http_plugin_address_pretty_printer (void *cls,
2102 struct GNUNET_TIME_Relative timeout,
2103 GNUNET_TRANSPORT_AddressStringCallback
2106 const struct IPv4HttpAddress *t4;
2107 const struct IPv6HttpAddress *t6;
2108 struct sockaddr_in a4;
2109 struct sockaddr_in6 a6;
2115 GNUNET_assert(cls !=NULL);
2116 if (addrlen == sizeof (struct IPv6HttpAddress))
2118 address = GNUNET_malloc (INET6_ADDRSTRLEN);
2120 a6.sin6_addr = t6->ipv6_addr;
2121 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
2122 port = ntohs(t6->u6_port);
2124 else if (addrlen == sizeof (struct IPv4HttpAddress))
2126 address = GNUNET_malloc (INET_ADDRSTRLEN);
2128 a4.sin_addr.s_addr = t4->ipv4_addr;
2129 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
2130 port = ntohs(t4->u_port);
2134 /* invalid address */
2135 GNUNET_break_op (0);
2136 asc (asc_cls, NULL);
2139 res = GNUNET_asprintf(&ret,"%s://%s:%u/", PROTOCOL_PREFIX, address,port);
2140 GNUNET_free (address);
2141 GNUNET_assert(res != 0);
2143 GNUNET_free_non_null (ret);
2149 * Another peer has suggested an address for this
2150 * peer and transport plugin. Check that this could be a valid
2151 * address. If so, consider adding it to the list
2154 * @param cls closure
2155 * @param addr pointer to the address
2156 * @param addrlen length of addr
2157 * @return GNUNET_OK if this is a plausible address for this peer
2161 http_plugin_address_suggested (void *cls,
2162 const void *addr, size_t addrlen)
2164 struct Plugin *plugin = cls;
2165 struct IPv4HttpAddress *v4;
2166 struct IPv6HttpAddress *v6;
2169 GNUNET_assert(cls !=NULL);
2170 if ((addrlen != sizeof (struct IPv4HttpAddress)) &&
2171 (addrlen != sizeof (struct IPv6HttpAddress)))
2173 return GNUNET_SYSERR;
2175 if (addrlen == sizeof (struct IPv4HttpAddress))
2177 v4 = (struct IPv4HttpAddress *) addr;
2178 /* Not skipping loopback
2179 if (INADDR_LOOPBACK == ntohl(v4->ipv4_addr))
2181 return GNUNET_SYSERR;
2183 port = ntohs (v4->u_port);
2184 if (port != plugin->port_inbound)
2186 return GNUNET_SYSERR;
2189 if (addrlen == sizeof (struct IPv6HttpAddress))
2191 v6 = (struct IPv6HttpAddress *) addr;
2192 if (IN6_IS_ADDR_LINKLOCAL (&v6->ipv6_addr))
2194 return GNUNET_SYSERR;
2196 port = ntohs (v6->u6_port);
2197 if (port != plugin->port_inbound)
2199 return GNUNET_SYSERR;
2208 * Function called for a quick conversion of the binary address to
2209 * a numeric address. Note that the caller must not free the
2210 * address and that the next call to this function is allowed
2211 * to override the address again.
2213 * @param cls closure
2214 * @param addr binary address
2215 * @param addrlen length of the address
2216 * @return string representing the same address
2219 http_plugin_address_to_string (void *cls,
2223 const struct IPv4HttpAddress *t4;
2224 const struct IPv6HttpAddress *t6;
2225 struct sockaddr_in a4;
2226 struct sockaddr_in6 a6;
2232 if (addrlen == sizeof (struct IPv6HttpAddress))
2234 address = GNUNET_malloc (INET6_ADDRSTRLEN);
2236 a6.sin6_addr = t6->ipv6_addr;
2237 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
2238 port = ntohs(t6->u6_port);
2240 else if (addrlen == sizeof (struct IPv4HttpAddress))
2242 address = GNUNET_malloc (INET_ADDRSTRLEN);
2244 a4.sin_addr.s_addr = t4->ipv4_addr;
2245 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
2246 port = ntohs(t4->u_port);
2250 /* invalid address */
2253 res = GNUNET_asprintf(&ret,"%s:%u",address,port);
2254 GNUNET_free (address);
2255 GNUNET_assert(res != 0);
2260 load_certificate( const char * file )
2262 struct GNUNET_DISK_FileHandle * gn_file;
2267 if (0!=STAT(file, &fstat))
2269 text = GNUNET_malloc (fstat.st_size);
2270 gn_file = GNUNET_DISK_file_open(file,GNUNET_DISK_OPEN_READ, GNUNET_DISK_PERM_USER_READ);
2276 if (GNUNET_SYSERR == GNUNET_DISK_file_read(gn_file, text, fstat.st_size))
2281 text[fstat.st_size] = '\0';
2282 GNUNET_DISK_file_close(gn_file);
2289 * Exit point from the plugin.
2292 libgnunet_plugin_transport_https_done (void *cls)
2294 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
2295 struct Plugin *plugin = api->cls;
2297 GNUNET_assert(cls !=NULL);
2299 if (plugin->http_server_daemon_v4 != NULL)
2301 MHD_stop_daemon (plugin->http_server_daemon_v4);
2302 plugin->http_server_daemon_v4 = NULL;
2304 if (plugin->http_server_daemon_v6 != NULL)
2306 MHD_stop_daemon (plugin->http_server_daemon_v6);
2307 plugin->http_server_daemon_v6 = NULL;
2310 if ( plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
2312 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v4);
2313 plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;
2316 if ( plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
2318 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v6);
2319 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
2323 /* free all peer information */
2324 if (plugin->peers!=NULL)
2326 GNUNET_CONTAINER_multihashmap_iterate (plugin->peers,
2327 &remove_peer_context_Iterator,
2329 GNUNET_CONTAINER_multihashmap_destroy (plugin->peers);
2331 if (plugin->multi_handle!=NULL)
2333 mret = curl_multi_cleanup(plugin->multi_handle);
2335 if ( CURLM_OK != mret)
2336 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed\n");
2338 plugin->multi_handle = NULL;
2340 curl_global_cleanup();
2342 if ( plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
2344 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
2345 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
2348 GNUNET_free_non_null (plugin->bind4_address);
2349 GNUNET_free_non_null (plugin->bind6_address);
2350 GNUNET_free_non_null(plugin->bind_hostname);
2351 GNUNET_free (plugin);
2354 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unload http plugin complete...\n");
2361 * Entry point for the plugin.
2364 libgnunet_plugin_transport_https_init (void *cls)
2366 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
2367 struct Plugin *plugin;
2368 struct GNUNET_TRANSPORT_PluginFunctions *api;
2369 struct GNUNET_TIME_Relative gn_timeout;
2370 long long unsigned int port;
2375 GNUNET_assert(cls !=NULL);
2377 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting https plugin...\n");
2380 plugin = GNUNET_malloc (sizeof (struct Plugin));
2381 plugin->stats = env->stats;
2383 plugin->peers = NULL;
2384 plugin->bind4_address = NULL;
2385 plugin->use_ipv6 = GNUNET_YES;
2386 plugin->use_ipv4 = GNUNET_YES;
2388 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
2390 api->send = &http_plugin_send;
2391 api->disconnect = &http_plugin_disconnect;
2392 api->address_pretty_printer = &http_plugin_address_pretty_printer;
2393 api->check_address = &http_plugin_address_suggested;
2394 api->address_to_string = &http_plugin_address_to_string;
2396 /* Hashing our identity to use it in URLs */
2397 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &plugin->my_ascii_hash_ident);
2399 /* Use IPv6 yes/no */
2400 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2401 "transport-https", "USE_IPv6"))
2403 plugin->use_ipv6 = GNUNET_CONFIGURATION_get_value_yesno (env->cfg,
2407 /* Use IPv4 yes/no */
2408 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2409 "transport-https", "USE_IPv4"))
2411 plugin->use_ipv4 = GNUNET_CONFIGURATION_get_value_yesno (env->cfg,
2415 /* Reading port number from config file */
2417 GNUNET_CONFIGURATION_get_value_number (env->cfg,
2423 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2425 _("Require valid port number for transport plugin `%s' in configuration!\n"),
2427 libgnunet_plugin_transport_https_done (api);
2431 /* Reading ipv4 addresse to bind to from config file */
2432 if ((plugin->use_ipv4==GNUNET_YES) && (GNUNET_CONFIGURATION_have_value (env->cfg,
2433 "transport-https", "BINDTO4")))
2435 GNUNET_break (GNUNET_OK ==
2436 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2439 &plugin->bind_hostname));
2440 plugin->bind4_address = GNUNET_malloc(sizeof(struct sockaddr_in));
2441 plugin->bind4_address->sin_family = AF_INET;
2442 plugin->bind4_address->sin_port = htons (port);
2444 if (inet_pton(AF_INET,plugin->bind_hostname, &plugin->bind4_address->sin_addr)<=0)
2446 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2448 _("Misconfigured address to bind to in configuration!\n"),
2450 GNUNET_free(plugin->bind4_address);
2451 GNUNET_free(plugin->bind_hostname);
2452 plugin->bind_hostname = NULL;
2453 plugin->bind4_address = NULL;
2457 /* Get private key file from config */
2458 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2459 "transport-https", "KEY_FILE"))
2461 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2468 GNUNET_asprintf(&key_file,"https.key");
2471 /* Get private key file from config */
2472 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2473 "transport-https", "CERT_FILE"))
2475 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2482 GNUNET_asprintf(&cert_file,"https.cert");
2485 /* Reading ipv4 addresse to bind to from config file */
2486 if ((plugin->use_ipv6==GNUNET_YES) && (GNUNET_CONFIGURATION_have_value (env->cfg,
2487 "transport-https", "BINDTO6")))
2489 GNUNET_break (GNUNET_OK ==
2490 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2493 &plugin->bind_hostname));
2495 plugin->bind6_address = GNUNET_malloc(sizeof(struct sockaddr_in6));
2496 plugin->bind6_address->sin6_family = AF_INET6;
2497 plugin->bind6_address->sin6_port = htons (port);
2499 if (inet_pton(AF_INET6,plugin->bind_hostname, &plugin->bind6_address->sin6_addr)<=0)
2501 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2503 _("Misconfigured address to bind to in configuration!\n"),
2505 GNUNET_free(plugin->bind6_address);
2506 GNUNET_free(plugin->bind_hostname);
2507 plugin->bind_hostname = NULL;
2508 plugin->bind6_address = NULL;
2512 /* read key & certificates from file */
2513 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Loading TLS certificate `%s' `%s'\n", key_file, cert_file);
2515 plugin->key = load_certificate( key_file );
2516 plugin->cert = load_certificate( cert_file );
2518 if ((plugin->key==NULL) || (plugin->cert==NULL))
2522 GNUNET_asprintf(&cmd,"gnunet-transport-certificate-creation %s %s", key_file, cert_file);
2523 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No usable TLS certificate found, creating certificate \n");
2528 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2530 _("Could not create a new TLS certificate, shell script `%s' failed!\n"),cmd,
2532 GNUNET_free (key_file);
2533 GNUNET_free (cert_file);
2534 libgnunet_plugin_transport_https_done(api);
2541 plugin->key = load_certificate( key_file );
2542 plugin->cert = load_certificate( cert_file );
2544 if ((plugin->key==NULL) || (plugin->cert==NULL))
2546 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2548 _("No usable TLS certificate found and creating one failed! \n"),
2550 GNUNET_free (key_file);
2551 GNUNET_free (cert_file);
2552 libgnunet_plugin_transport_https_done(api);
2557 GNUNET_free (key_file);
2558 GNUNET_free (cert_file);
2561 GNUNET_assert((plugin->key!=NULL) && (plugin->cert!=NULL));
2562 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "TLS certificate loaded\n", key_file, cert_file);
2564 GNUNET_assert ((port > 0) && (port <= 65535));
2565 plugin->port_inbound = port;
2566 gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
2567 unsigned int timeout = (gn_timeout.value) / 1000;
2568 if ((plugin->http_server_daemon_v6 == NULL) && (plugin->use_ipv6 == GNUNET_YES) && (port != 0))
2570 struct sockaddr * tmp = (struct sockaddr *) plugin->bind6_address;
2571 plugin->http_server_daemon_v6 = MHD_start_daemon (
2572 #if DEBUG_CONNECTIONS
2575 MHD_USE_IPv6 | MHD_USE_SSL,
2578 plugin , &mdh_access_cb, plugin,
2579 MHD_OPTION_HTTPS_MEM_KEY, plugin->key,
2580 MHD_OPTION_HTTPS_MEM_CERT, plugin->cert,
2581 MHD_OPTION_SOCK_ADDR, tmp,
2582 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 32,
2583 //MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 6,
2584 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) timeout,
2585 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
2586 MHD_OPTION_NOTIFY_COMPLETED, &mhd_termination_cb, NULL,
2589 if ((plugin->http_server_daemon_v4 == NULL) && (plugin->use_ipv4 == GNUNET_YES) && (port != 0))
2591 plugin->http_server_daemon_v4 = MHD_start_daemon (
2592 #if DEBUG_CONNECTIONS
2595 MHD_NO_FLAG | MHD_USE_SSL,
2598 plugin , &mdh_access_cb, plugin,
2599 MHD_OPTION_HTTPS_MEM_KEY, plugin->key,
2600 MHD_OPTION_HTTPS_MEM_CERT, plugin->cert,
2601 MHD_OPTION_SOCK_ADDR, (struct sockaddr_in *)plugin->bind4_address,
2602 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 32,
2603 //MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 6,
2604 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) timeout,
2605 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
2606 MHD_OPTION_NOTIFY_COMPLETED, &mhd_termination_cb, NULL,
2609 if (plugin->http_server_daemon_v4 != NULL)
2610 plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
2611 if (plugin->http_server_daemon_v6 != NULL)
2612 plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
2615 if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
2618 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting HTTPS Server with IPv4 bound to %s with port %u\n",(plugin->bind_hostname!=NULL) ? plugin->bind_hostname : "every address",port);
2621 else if ((plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK) && (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK))
2624 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting HTTPS Server with IPv6 bound to %s with port %u\n",(plugin->bind_hostname!=NULL) ? plugin->bind_hostname : "every address", port);
2627 else if ((plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK) && (plugin->http_server_task_v4 == GNUNET_SCHEDULER_NO_TASK))
2630 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting HTTPS Server with IPv4 and IPv6 bound to %s with port %u\n",(plugin->bind_hostname!=NULL) ? plugin->bind_hostname : "every address", port);
2636 if ((plugin->use_ipv6 == GNUNET_YES) && (plugin->use_ipv4 == GNUNET_YES))
2637 GNUNET_asprintf(&tmp,"with IPv4 and IPv6 enabled");
2638 if ((plugin->use_ipv6 == GNUNET_NO) && (plugin->use_ipv4 == GNUNET_YES))
2639 GNUNET_asprintf(&tmp,"with IPv4 enabled");
2640 if ((plugin->use_ipv6 == GNUNET_YES) && (plugin->use_ipv4 == GNUNET_NO))
2641 GNUNET_asprintf(&tmp,"with IPv6 enabled");
2642 if ((plugin->use_ipv6 == GNUNET_NO) && (plugin->use_ipv4 == GNUNET_NO))
2643 GNUNET_asprintf(&tmp,"with NO IP PROTOCOL enabled");
2644 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,"HTTPS Server with %s could not be started on port %u! https plugin failed!\n",tmp, port);
2646 libgnunet_plugin_transport_https_done (api);
2650 /* Initializing cURL */
2651 curl_global_init(CURL_GLOBAL_ALL);
2652 plugin->multi_handle = curl_multi_init();
2654 if ( NULL == plugin->multi_handle )
2656 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2658 _("Could not initialize curl multi handle, failed to start http plugin!\n"),
2660 libgnunet_plugin_transport_https_done (api);
2664 plugin->peers = GNUNET_CONTAINER_multihashmap_create (10);
2665 GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
2670 /* end of plugin_transport_https.c */