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_NO
45 #define VERBOSE GNUNET_NO
46 #define DEBUG_CURL GNUNET_NO
47 #define DEBUG_CONNECTIONS GNUNET_NO
48 #define DEBUG_SESSION_SELECTION GNUNET_NO
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 */
379 * Function called for a quick conversion of the binary address to
380 * a numeric address. Note that the caller must not free the
381 * address and that the next call to this function is allowed
382 * to override the address again.
385 * @param addr binary address
386 * @param addrlen length of the address
387 * @return string representing the same address
390 http_plugin_address_to_string (void *cls,
396 * Call MHD to process pending ipv4 requests and then go back
397 * and schedule the next run.
399 static void http_server_daemon_v4_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
401 * Call MHD to process pending ipv6 requests and then go back
402 * and schedule the next run.
404 static void http_server_daemon_v6_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
407 * Function setting up curl handle and selecting message to send
409 * @param ses session to send data to
410 * @param con connection
411 * @return bytes sent to peer
413 static ssize_t send_check_connections (void *cls, struct Session *ps);
416 * Function setting up file descriptors and scheduling task to run
418 * @param ses session to send data to
421 static int curl_schedule(void *cls );
425 static char * create_url(void * cls, const void * addr, size_t addrlen, size_t id)
427 struct Plugin *plugin = cls;
430 GNUNET_assert ((addr!=NULL) && (addrlen != 0));
431 GNUNET_asprintf(&url,
432 "%s://%s/%s;%u", PROTOCOL_PREFIX,
433 http_plugin_address_to_string(NULL, addr, addrlen),
434 (char *) (&plugin->my_ascii_hash_ident),id);
440 * Removes a message from the linked list of messages
441 * @param con connection to remove message from
442 * @param msg message to remove
443 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
445 static int remove_http_message (struct Session * ps, struct HTTP_Message * msg)
447 GNUNET_CONTAINER_DLL_remove(ps->pending_msgs_head,ps->pending_msgs_tail,msg);
452 int remove_peer_context_Iterator (void *cls, const GNUNET_HashCode *key, void *value);
455 * Removes a session from the linked list of sessions
456 * @param pc peer context
458 * @param call_msg_cont GNUNET_YES to call pending message continuations, otherwise no
459 * @param call_msg_cont_result, result to call message continuations with
460 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
462 static int remove_session (struct HTTP_PeerContext * pc, struct Session * ps, int call_msg_cont, int call_msg_cont_result)
464 struct HTTP_Message * msg;
465 struct Plugin * plugin = ps->peercontext->plugin;
467 #if DEBUG_CONNECTIONS
468 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);
470 plugin->env->session_end(plugin, &pc->identity, ps);
472 GNUNET_free_non_null (ps->addr);
473 GNUNET_SERVER_mst_destroy (ps->msgtok);
474 GNUNET_free(ps->url);
476 if (ps->direction==INBOUND)
478 if (ps->recv_endpoint != NULL)
480 curl_easy_cleanup(ps->recv_endpoint);
481 ps->recv_endpoint = NULL;
483 if (ps->send_endpoint != NULL)
485 curl_easy_cleanup(ps->send_endpoint);
486 ps->send_endpoint = NULL;
490 msg = ps->pending_msgs_head;
493 if ((call_msg_cont == GNUNET_YES) && (msg->transmit_cont!=NULL))
495 msg->transmit_cont (msg->transmit_cont_cls,&pc->identity,call_msg_cont_result);
498 GNUNET_CONTAINER_DLL_remove(ps->pending_msgs_head,ps->pending_msgs_head,msg);
499 msg = ps->pending_msgs_head;
502 GNUNET_CONTAINER_DLL_remove(pc->head,pc->tail,ps);
506 /* no sessions left remove peer */
510 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No sessions left for peer `%s', removing context\n",GNUNET_i2s(&pc->identity));
512 remove_peer_context_Iterator(plugin, &pc->identity.hashPubKey, pc);
518 int remove_peer_context_Iterator (void *cls, const GNUNET_HashCode *key, void *value)
520 struct Plugin *plugin = cls;
521 struct HTTP_PeerContext * pc = value;
522 struct Session * ps = pc->head;
523 struct Session * tmp = NULL;
524 struct HTTP_Message * msg = NULL;
525 struct HTTP_Message * msg_tmp = NULL;
527 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing context for peer `%s'\n",GNUNET_i2s(&pc->identity));
529 GNUNET_CONTAINER_multihashmap_remove (plugin->peers, &pc->identity.hashPubKey, pc);
532 plugin->env->session_end(plugin, &pc->identity, ps);
535 GNUNET_free_non_null (ps->addr);
536 GNUNET_free(ps->url);
537 if (ps->msgtok != NULL)
538 GNUNET_SERVER_mst_destroy (ps->msgtok);
540 msg = ps->pending_msgs_head;
547 if (ps->direction==OUTBOUND)
549 if (ps->send_endpoint!=NULL)
550 curl_easy_cleanup(ps->send_endpoint);
551 if (ps->recv_endpoint!=NULL)
552 curl_easy_cleanup(ps->recv_endpoint);
559 GNUNET_STATISTICS_update (plugin->env->stats,
560 gettext_noop ("# HTTP peers active"),
567 * Add the IP of our network interface to the list of
568 * our external IP addresses.
570 * @param cls the 'struct Plugin*'
571 * @param name name of the interface
572 * @param isDefault do we think this may be our default interface
573 * @param addr address of the interface
574 * @param addrlen number of bytes in addr
575 * @return GNUNET_OK to continue iterating
578 process_interfaces (void *cls,
581 const struct sockaddr *addr, socklen_t addrlen)
583 struct Plugin *plugin = cls;
584 struct IPv4HttpAddress * t4;
585 struct IPv6HttpAddress * t6;
589 GNUNET_assert(cls !=NULL);
590 af = addr->sa_family;
591 if ((af == AF_INET) && (plugin->use_ipv4 == GNUNET_YES) && (plugin->bind6_address == NULL))
593 struct in_addr bnd_cmp = ((struct sockaddr_in *) addr)->sin_addr;
594 t4 = GNUNET_malloc(sizeof(struct IPv4HttpAddress));
595 /* Not skipping loopback addresses
596 if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
602 t4->ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
603 t4->u_port = htons (plugin->port_inbound);
604 if (plugin->bind4_address != NULL)
606 if (0 == memcmp(&plugin->bind4_address->sin_addr, &bnd_cmp, sizeof (struct in_addr)))
608 plugin->env->notify_address(plugin->env->cls,"https",t4, sizeof (struct IPv4HttpAddress), GNUNET_TIME_UNIT_FOREVER_REL);
613 plugin->env->notify_address(plugin->env->cls,"https",t4, sizeof (struct IPv4HttpAddress), GNUNET_TIME_UNIT_FOREVER_REL);
617 else if ((af == AF_INET6) && (plugin->use_ipv6 == GNUNET_YES) && (plugin->bind4_address == NULL))
619 struct in6_addr bnd_cmp6 = ((struct sockaddr_in6 *) addr)->sin6_addr;
620 t6 = GNUNET_malloc(sizeof(struct IPv6HttpAddress));
621 if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
626 if (plugin->bind6_address != NULL)
628 if (0 == memcmp(&plugin->bind6_address->sin6_addr, &bnd_cmp6, sizeof (struct in6_addr)))
630 memcpy (&t6->ipv6_addr,
631 &((struct sockaddr_in6 *) addr)->sin6_addr,
632 sizeof (struct in6_addr));
633 t6->u6_port = htons (plugin->port_inbound);
634 plugin->env->notify_address(plugin->env->cls,"https",t6,sizeof (struct IPv6HttpAddress) , GNUNET_TIME_UNIT_FOREVER_REL);
639 memcpy (&t6->ipv6_addr,
640 &((struct sockaddr_in6 *) addr)->sin6_addr,
641 sizeof (struct in6_addr));
642 t6->u6_port = htons (plugin->port_inbound);
643 plugin->env->notify_address(plugin->env->cls,"https",t6,sizeof (struct IPv6HttpAddress) , GNUNET_TIME_UNIT_FOREVER_REL);
652 * Callback called by MHD when a connection is terminated
654 static void mhd_termination_cb (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
656 struct Session * ps = *httpSessionCache;
659 struct HTTP_PeerContext * pc = ps->peercontext;
661 if (connection==ps->recv_endpoint)
663 #if DEBUG_CONNECTIONS
664 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound connection from peer `%s' was terminated\n", ps, GNUNET_i2s(&pc->identity));
666 ps->recv_active = GNUNET_NO;
667 ps->recv_connected = GNUNET_NO;
668 ps->recv_endpoint = NULL;
670 if (connection==ps->send_endpoint)
673 ps->send_active = GNUNET_NO;
674 ps->send_connected = GNUNET_NO;
675 ps->send_endpoint = NULL;
676 #if DEBUG_CONNECTIONS
677 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound connection from peer `%s' was terminated\n", ps, GNUNET_i2s(&pc->identity));
681 /* if both connections disconnected, remove session */
682 if ((ps->send_connected == GNUNET_NO) && (ps->recv_connected == GNUNET_NO))
684 GNUNET_STATISTICS_update (pc->plugin->env->stats,
685 gettext_noop ("# HTTPS inbound sessions for peers active"),
688 remove_session(pc,ps,GNUNET_YES,GNUNET_SYSERR);
692 static void mhd_write_mst_cb (void *cls,
694 const struct GNUNET_MessageHeader *message)
697 struct Session *ps = cls;
698 struct HTTP_PeerContext *pc = ps->peercontext;
699 GNUNET_assert(ps != NULL);
700 GNUNET_assert(pc != NULL);
702 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
703 "Connection %X: Forwarding message to transport service, type %u and size %u from `%s' (`%s')\n",
705 ntohs(message->type),
706 ntohs(message->size),
707 GNUNET_i2s(&(ps->peercontext)->identity),http_plugin_address_to_string(NULL,ps->addr,ps->addrlen));
709 pc->plugin->env->receive (ps->peercontext->plugin->env->cls,
717 * Check if ip is allowed to connect.
720 mhd_accept_cb (void *cls,
721 const struct sockaddr *addr, socklen_t addr_len)
724 struct Plugin *plugin = cls;
726 /* Every connection is accepted, nothing more to do here */
730 int mhd_send_callback (void *cls, uint64_t pos, char *buf, int max)
734 struct Session * ps = cls;
735 struct HTTP_PeerContext * pc;
736 struct HTTP_Message * msg;
738 GNUNET_assert (ps!=NULL);
739 pc = ps->peercontext;
740 msg = ps->pending_msgs_tail;
741 if (ps->send_force_disconnect==GNUNET_YES)
743 #if DEBUG_CONNECTIONS
744 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound forced to disconnect\n",ps);
751 if ((msg->size-msg->pos) <= max)
753 memcpy(buf,&msg->buf[msg->pos],(msg->size-msg->pos));
754 bytes_read = msg->size-msg->pos;
755 msg->pos+=(msg->size-msg->pos);
759 memcpy(buf,&msg->buf[msg->pos],max);
764 if (msg->pos==msg->size)
766 if (NULL!=msg->transmit_cont)
767 msg->transmit_cont (msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
768 remove_http_message(ps,msg);
775 * Process GET or PUT request received via MHD. For
776 * GET, queue response that will send back our pending
777 * messages. For PUT, process incoming data and send
778 * to GNUnet core. In either case, check if a session
779 * already exists and create a new one if not.
782 mdh_access_cb (void *cls,
783 struct MHD_Connection *mhd_connection,
787 const char *upload_data,
788 size_t * upload_data_size, void **httpSessionCache)
790 struct Plugin *plugin = cls;
791 struct MHD_Response *response;
792 const union MHD_ConnectionInfo * conn_info;
794 struct sockaddr_in *addrin;
795 struct sockaddr_in6 *addrin6;
797 char address[INET6_ADDRSTRLEN+14];
798 struct GNUNET_PeerIdentity pi_in;
801 struct IPv4HttpAddress ipv4addr;
802 struct IPv6HttpAddress ipv6addr;
804 struct HTTP_PeerContext *pc;
805 struct Session *ps = NULL;
806 struct Session *ps_tmp = NULL;
809 int send_error_to_client;
813 GNUNET_assert(cls !=NULL);
814 send_error_to_client = GNUNET_NO;
816 if (NULL == *httpSessionCache)
818 /* check url for peer identity , if invalid send HTTP 404*/
819 size_t len = strlen(&url[1]);
820 char * peer = GNUNET_malloc(104+1);
822 if ((len>104) && (url[104]==';'))
824 char * id = GNUNET_malloc((len-104)+1);
825 strcpy(id,&url[105]);
826 memcpy(peer,&url[1],103);
828 id_num = strtoul ( id, NULL , 10);
831 res = GNUNET_CRYPTO_hash_from_string (peer, &(pi_in.hashPubKey));
833 if ( GNUNET_SYSERR == res )
835 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
836 res = MHD_queue_response (mhd_connection, MHD_HTTP_NOT_FOUND, response);
837 MHD_destroy_response (response);
838 #if DEBUG_CONNECTIONS
840 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");
842 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
849 ps = *httpSessionCache;
850 pc = ps->peercontext;
853 if (NULL == *httpSessionCache)
855 /* get peer context */
856 pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &pi_in.hashPubKey);
860 pc = GNUNET_malloc(sizeof (struct HTTP_PeerContext));
862 pc->session_id_counter=1;
863 pc->last_session = NULL;
864 memcpy(&pc->identity, &pi_in, sizeof(struct GNUNET_PeerIdentity));
865 GNUNET_CONTAINER_multihashmap_put(plugin->peers, &pc->identity.hashPubKey, pc, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
866 GNUNET_STATISTICS_update (plugin->env->stats,
867 gettext_noop ("# HTTP peers active"),
872 conn_info = MHD_get_connection_info(mhd_connection, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
873 /* Incoming IPv4 connection */
874 if ( AF_INET == conn_info->client_addr->sin_family)
876 addrin = conn_info->client_addr;
877 inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
878 memcpy(&ipv4addr.ipv4_addr,&(addrin->sin_addr),sizeof(struct in_addr));
879 ipv4addr.u_port = addrin->sin_port;
881 addr_len = sizeof(struct IPv4HttpAddress);
883 /* Incoming IPv6 connection */
884 if ( AF_INET6 == conn_info->client_addr->sin_family)
886 addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
887 inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
888 memcpy(&ipv6addr.ipv6_addr,&(addrin6->sin6_addr),sizeof(struct in6_addr));
889 ipv6addr.u6_port = addrin6->sin6_port;
891 addr_len = sizeof(struct IPv6HttpAddress);
895 /* only inbound sessions here */
900 if ((ps_tmp->direction==INBOUND) && (ps_tmp->session_id == id_num) && (id_num!=0))
902 if ((ps_tmp->recv_force_disconnect!=GNUNET_YES) && (ps_tmp->send_force_disconnect!=GNUNET_YES))
911 ps = GNUNET_malloc(sizeof (struct Session));
912 ps->addr = GNUNET_malloc(addr_len);
913 memcpy(ps->addr,addr,addr_len);
914 ps->addrlen = addr_len;
915 ps->direction=INBOUND;
916 ps->pending_msgs_head = NULL;
917 ps->pending_msgs_tail = NULL;
918 ps->send_connected=GNUNET_NO;
919 ps->send_active=GNUNET_NO;
920 ps->recv_connected=GNUNET_NO;
921 ps->recv_active=GNUNET_NO;
923 ps->session_id =id_num;
924 ps->url = create_url (plugin, ps->addr, ps->addrlen, ps->session_id);
925 GNUNET_CONTAINER_DLL_insert(pc->head,pc->tail,ps);
926 GNUNET_STATISTICS_update (plugin->env->stats,
927 gettext_noop ("# HTTPS inbound sessions for peers active"),
932 *httpSessionCache = ps;
933 if (ps->msgtok==NULL)
934 ps->msgtok = GNUNET_SERVER_mst_create (&mhd_write_mst_cb, ps);
936 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: HTTPS Daemon has new an incoming `%s' request from peer `%s' (`%s')\n",
939 GNUNET_i2s(&pc->identity),
940 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen));
944 /* Is it a PUT or a GET request */
945 if (0 == strcmp (MHD_HTTP_METHOD_PUT, method))
947 if (ps->recv_force_disconnect == GNUNET_YES)
949 #if DEBUG_CONNECTIONS
950 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound connection was forced to disconnect\n",ps);
952 ps->recv_active = GNUNET_NO;
955 if ((*upload_data_size == 0) && (ps->recv_active==GNUNET_NO))
957 ps->recv_endpoint = mhd_connection;
958 ps->recv_connected = GNUNET_YES;
959 ps->recv_active = GNUNET_YES;
960 ps->recv_force_disconnect = GNUNET_NO;
961 #if DEBUG_CONNECTIONS
962 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound PUT connection connected\n",ps);
967 /* Transmission of all data complete */
968 if ((*upload_data_size == 0) && (ps->recv_active == GNUNET_YES))
970 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
971 res = MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
972 #if DEBUG_CONNECTIONS
973 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Sent HTTP/1.1: 200 OK as PUT Response\n",ps);
975 MHD_destroy_response (response);
976 ps->recv_active=GNUNET_NO;
981 if ((*upload_data_size > 0) && (ps->recv_active == GNUNET_YES))
983 res = GNUNET_SERVER_mst_receive(ps->msgtok, ps, upload_data,*upload_data_size, GNUNET_NO, GNUNET_NO);
984 (*upload_data_size) = 0;
990 if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
992 if (ps->send_force_disconnect == GNUNET_YES)
994 #if DEBUG_CONNECTIONS
995 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound connection was forced to disconnect\n",ps);
997 ps->send_active = GNUNET_NO;
1000 ps->send_connected = GNUNET_YES;
1001 ps->send_active = GNUNET_YES;
1002 ps->send_endpoint = mhd_connection;
1003 ps->send_force_disconnect = GNUNET_NO;
1004 #if DEBUG_CONNECTIONS
1005 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound GET connection connected\n",ps);
1007 response = MHD_create_response_from_callback(-1,32 * 1024, &mhd_send_callback, ps, NULL);
1008 res = MHD_queue_response (mhd_connection, MHD_HTTP_OK, response);
1009 MHD_destroy_response (response);
1016 * Function that queries MHD's select sets and
1017 * starts the task waiting for them.
1019 static GNUNET_SCHEDULER_TaskIdentifier
1020 http_server_daemon_prepare (void * cls, struct MHD_Daemon *daemon_handle)
1022 struct Plugin *plugin = cls;
1023 GNUNET_SCHEDULER_TaskIdentifier ret;
1027 struct GNUNET_NETWORK_FDSet *wrs;
1028 struct GNUNET_NETWORK_FDSet *wws;
1029 struct GNUNET_NETWORK_FDSet *wes;
1031 unsigned long long timeout;
1033 struct GNUNET_TIME_Relative tv;
1035 GNUNET_assert(cls !=NULL);
1036 ret = GNUNET_SCHEDULER_NO_TASK;
1040 wrs = GNUNET_NETWORK_fdset_create ();
1041 wes = GNUNET_NETWORK_fdset_create ();
1042 wws = GNUNET_NETWORK_fdset_create ();
1044 GNUNET_assert (MHD_YES ==
1045 MHD_get_fdset (daemon_handle,
1050 haveto = MHD_get_timeout (daemon_handle, &timeout);
1051 if (haveto == MHD_YES)
1052 tv.value = (uint64_t) timeout;
1054 tv = GNUNET_TIME_UNIT_FOREVER_REL;
1055 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
1056 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
1057 GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
1058 if (daemon_handle == plugin->http_server_daemon_v4)
1060 if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1062 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v4);
1063 plugin->http_server_daemon_v4 = GNUNET_SCHEDULER_NO_TASK;
1066 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1067 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1068 GNUNET_SCHEDULER_NO_TASK,
1072 &http_server_daemon_v4_run,
1075 if (daemon_handle == plugin->http_server_daemon_v6)
1077 if (plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1079 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v6);
1080 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1083 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1084 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1085 GNUNET_SCHEDULER_NO_TASK,
1089 &http_server_daemon_v6_run,
1092 GNUNET_NETWORK_fdset_destroy (wrs);
1093 GNUNET_NETWORK_fdset_destroy (wws);
1094 GNUNET_NETWORK_fdset_destroy (wes);
1099 * Call MHD to process pending requests and then go back
1100 * and schedule the next run.
1102 static void http_server_daemon_v4_run (void *cls,
1103 const struct GNUNET_SCHEDULER_TaskContext *tc)
1105 struct Plugin *plugin = cls;
1107 GNUNET_assert(cls !=NULL);
1108 plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;
1110 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1113 GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v4));
1114 plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
1120 * Call MHD to process pending requests and then go back
1121 * and schedule the next run.
1123 static void http_server_daemon_v6_run (void *cls,
1124 const struct GNUNET_SCHEDULER_TaskContext *tc)
1126 struct Plugin *plugin = cls;
1128 GNUNET_assert(cls !=NULL);
1129 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1131 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1134 GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v6));
1135 plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
1139 static size_t curl_get_header_cb( void *ptr, size_t size, size_t nmemb, void *stream)
1141 struct Session * ps = stream;
1143 long http_result = 0;
1145 /* Getting last http result code */
1146 if (ps->recv_connected==GNUNET_NO)
1148 GNUNET_assert(NULL!=ps);
1149 res = curl_easy_getinfo(ps->recv_endpoint, CURLINFO_RESPONSE_CODE, &http_result);
1150 if (CURLE_OK == res)
1152 if (http_result == 200)
1154 ps->recv_connected = GNUNET_YES;
1155 ps->recv_active = GNUNET_YES;
1156 #if DEBUG_CONNECTIONS
1157 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: connected to recieve data\n",ps);
1159 // Calling send_check_connections again since receive is established
1160 send_check_connections (ps->peercontext->plugin, ps);
1167 size_t len = size * nmemb;
1170 if ((size * nmemb) < SIZE_MAX)
1171 tmp = GNUNET_malloc (len+1);
1173 if ((tmp != NULL) && (len > 0))
1175 memcpy(tmp,ptr,len);
1178 if (tmp[len-2] == 13)
1182 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Header: %s\n",ps,tmp);
1189 return size * nmemb;
1192 static size_t curl_put_header_cb( void *ptr, size_t size, size_t nmemb, void *stream)
1194 struct Session * ps = stream;
1197 size_t len = size * nmemb;
1198 long http_result = 0;
1201 /* Getting last http result code */
1202 GNUNET_assert(NULL!=ps);
1203 res = curl_easy_getinfo(ps->send_endpoint, CURLINFO_RESPONSE_CODE, &http_result);
1204 if (CURLE_OK == res)
1206 if ((http_result == 100) && (ps->send_connected==GNUNET_NO))
1208 ps->send_connected = GNUNET_YES;
1209 ps->send_active = GNUNET_YES;
1210 #if DEBUG_CONNECTIONS
1211 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: connected to send data\n",ps);
1214 if ((http_result == 200) && (ps->send_connected==GNUNET_YES))
1216 ps->send_connected = GNUNET_NO;
1217 ps->send_active = GNUNET_NO;
1218 #if DEBUG_CONNECTIONS
1219 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: sending disconnected\n",ps);
1225 if ((size * nmemb) < SIZE_MAX)
1226 tmp = GNUNET_malloc (len+1);
1228 if ((tmp != NULL) && (len > 0))
1230 memcpy(tmp,ptr,len);
1233 if (tmp[len-2] == 13)
1240 return size * nmemb;
1244 * Callback method used with libcurl
1245 * Method is called when libcurl needs to read data during sending
1246 * @param stream pointer where to write data
1247 * @param size size of an individual element
1248 * @param nmemb count of elements that can be written to the buffer
1249 * @param ptr source pointer, passed to the libcurl handle
1250 * @return bytes written to stream
1252 static size_t curl_send_cb(void *stream, size_t size, size_t nmemb, void *ptr)
1254 struct Session * ps = ptr;
1255 struct HTTP_Message * msg = ps->pending_msgs_tail;
1259 if (ps->send_active == GNUNET_NO)
1260 return CURL_READFUNC_PAUSE;
1263 if ((ps->pending_msgs_tail == NULL) && (ps->send_active == GNUNET_YES))
1265 #if DEBUG_CONNECTIONS
1266 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: No Message to send, pausing connection\n",ps);
1268 ps->send_active = GNUNET_NO;
1269 return CURL_READFUNC_PAUSE;
1272 msg = ps->pending_msgs_tail;
1274 if (msg->pos < msg->size)
1276 /* data fit in buffer */
1277 if ((msg->size - msg->pos) <= (size * nmemb))
1279 len = (msg->size - msg->pos);
1280 memcpy(stream, &msg->buf[msg->pos], len);
1287 memcpy(stream, &msg->buf[msg->pos], len);
1292 /* no data to send */
1298 if ( msg->pos == msg->size)
1300 #if DEBUG_CONNECTIONS
1301 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: Message with %u bytes sent, removing message from queue \n",ps, msg->pos);
1303 /* Calling transmit continuation */
1304 if (( NULL != ps->pending_msgs_tail) && (NULL != ps->pending_msgs_tail->transmit_cont))
1305 msg->transmit_cont (ps->pending_msgs_tail->transmit_cont_cls,&(ps->peercontext)->identity,GNUNET_OK);
1306 remove_http_message(ps, msg);
1311 static void curl_receive_mst_cb (void *cls,
1313 const struct GNUNET_MessageHeader *message)
1315 struct Session *ps = cls;
1316 struct HTTP_PeerContext *pc = ps->peercontext;
1317 GNUNET_assert(ps != NULL);
1318 GNUNET_assert(pc != NULL);
1320 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1321 "Connection %X: Forwarding message to transport service, type %u and size %u from `%s' (`%s')\n",
1323 ntohs(message->type),
1324 ntohs(message->size),
1325 GNUNET_i2s(&(pc->identity)),http_plugin_address_to_string(NULL,ps->addr,ps->addrlen));
1327 pc->plugin->env->receive (pc->plugin->env->cls,
1336 * Callback method used with libcurl
1337 * Method is called when libcurl needs to write data during sending
1338 * @param stream pointer where to write data
1339 * @param size size of an individual element
1340 * @param nmemb count of elements that can be written to the buffer
1341 * @param ptr destination pointer, passed to the libcurl handle
1342 * @return bytes read from stream
1344 static size_t curl_receive_cb( void *stream, size_t size, size_t nmemb, void *ptr)
1346 struct Session * ps = ptr;
1347 #if DEBUG_CONNECTIONS
1348 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: %u bytes received\n",ps, size*nmemb);
1350 GNUNET_SERVER_mst_receive(ps->msgtok, ps, stream, size*nmemb, GNUNET_NO, GNUNET_NO);
1351 return (size * nmemb);
1355 static void curl_perform (void *cls,
1356 const struct GNUNET_SCHEDULER_TaskContext *tc)
1358 struct Plugin *plugin = cls;
1359 static unsigned int handles_last_run;
1361 struct CURLMsg *msg;
1363 struct Session *ps = NULL;
1364 struct HTTP_PeerContext *pc = NULL;
1365 struct HTTP_Message * cur_msg = NULL;
1369 GNUNET_assert(cls !=NULL);
1371 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
1372 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
1378 mret = curl_multi_perform (plugin->multi_handle, &running);
1379 if ((running < handles_last_run) && (running>0))
1384 msg = curl_multi_info_read (plugin->multi_handle, &running);
1387 /* get session for affected curl handle */
1388 GNUNET_assert ( msg->easy_handle != NULL );
1389 curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &tmp);
1390 ps = (struct Session *) tmp;
1391 GNUNET_assert ( ps != NULL );
1392 pc = ps->peercontext;
1393 GNUNET_assert ( pc != NULL );
1398 if ( (msg->data.result != CURLE_OK) &&
1399 (msg->data.result != CURLE_GOT_NOTHING) )
1401 /* sending msg failed*/
1402 if (msg->easy_handle == ps->send_endpoint)
1404 #if DEBUG_CONNECTIONS
1405 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
1406 _("Connection %X: HTTPS PUT to peer `%s' (`%s') failed: `%s' `%s'\n"),
1408 GNUNET_i2s(&pc->identity),
1409 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1410 "curl_multi_perform",
1411 curl_easy_strerror (msg->data.result));
1413 ps->send_connected = GNUNET_NO;
1414 ps->send_active = GNUNET_NO;
1415 curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint);
1416 //curl_easy_cleanup(ps->send_endpoint);
1417 //ps->send_endpoint=NULL;
1418 cur_msg = ps->pending_msgs_tail;
1419 if (( NULL != cur_msg) && ( NULL != cur_msg->transmit_cont))
1420 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
1422 /* GET connection failed */
1423 if (msg->easy_handle == ps->recv_endpoint)
1425 #if DEBUG_CONNECTIONS
1426 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
1427 _("Connection %X: HTTPS GET to peer `%s' (`%s') failed: `%s' `%s'\n"),
1429 GNUNET_i2s(&pc->identity),
1430 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1431 "curl_multi_perform",
1432 curl_easy_strerror (msg->data.result));
1434 ps->recv_connected = GNUNET_NO;
1435 ps->recv_active = GNUNET_NO;
1436 curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint);
1437 //curl_easy_cleanup(ps->recv_endpoint);
1438 //ps->recv_endpoint=NULL;
1443 if (msg->easy_handle == ps->send_endpoint)
1445 GNUNET_assert (CURLE_OK == curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result));
1446 #if DEBUG_CONNECTIONS
1447 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1448 "Connection %X: HTTPS PUT connection to peer `%s' (`%s') was closed with HTTP code %u\n",
1450 GNUNET_i2s(&pc->identity),
1451 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1454 /* Calling transmit continuation */
1455 cur_msg = ps->pending_msgs_tail;
1456 if (( NULL != cur_msg) && (NULL != cur_msg->transmit_cont))
1458 /* HTTP 1xx : Last message before here was informational */
1459 if ((http_result >=100) && (http_result < 200))
1460 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
1461 /* HTTP 2xx: successful operations */
1462 if ((http_result >=200) && (http_result < 300))
1463 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_OK);
1464 /* HTTP 3xx..5xx: error */
1465 if ((http_result >=300) && (http_result < 600))
1466 cur_msg->transmit_cont (cur_msg->transmit_cont_cls,&pc->identity,GNUNET_SYSERR);
1468 ps->send_connected = GNUNET_NO;
1469 ps->send_active = GNUNET_NO;
1470 curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint);
1471 //curl_easy_cleanup(ps->send_endpoint);
1472 //ps->send_endpoint =NULL;
1474 if (msg->easy_handle == ps->recv_endpoint)
1476 #if DEBUG_CONNECTIONS
1477 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1478 "Connection %X: HTTP GET connection to peer `%s' (`%s') was closed with HTTP code %u\n",
1480 GNUNET_i2s(&pc->identity),
1481 http_plugin_address_to_string(NULL, ps->addr, ps->addrlen),
1484 ps->recv_connected = GNUNET_NO;
1485 ps->recv_active = GNUNET_NO;
1486 curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint);
1487 //curl_easy_cleanup(ps->recv_endpoint);
1488 //ps->recv_endpoint=NULL;
1491 if ((ps->recv_connected == GNUNET_NO) && (ps->send_connected == GNUNET_NO))
1492 remove_session (pc, ps, GNUNET_YES, GNUNET_SYSERR);
1499 while ( (running > 0) );
1501 handles_last_run = running;
1503 while (mret == CURLM_CALL_MULTI_PERFORM);
1504 curl_schedule(plugin);
1509 * Function setting up file descriptors and scheduling task to run
1510 * @param ses session to send data to
1511 * @return GNUNET_SYSERR for hard failure, GNUNET_OK for ok
1514 http_plugin_disconnect (void *cls,
1515 const struct GNUNET_PeerIdentity *target)
1519 struct Plugin *plugin = cls;
1520 struct HTTP_PeerContext *pc = NULL;
1521 struct Session *ps = NULL;
1522 //struct Session *tmp = NULL;
1524 pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &target->hashPubKey);
1531 /* Telling transport that session is getting disconnected */
1532 plugin->env->session_end(plugin, target, ps);
1533 if (ps->direction==OUTBOUND)
1535 if (ps->send_endpoint!=NULL)
1537 //GNUNET_assert(CURLM_OK == curl_multi_remove_handle(plugin->multi_handle,ps->send_endpoint));
1538 //curl_easy_cleanup(ps->send_endpoint);
1539 //ps->send_endpoint=NULL;
1540 ps->send_force_disconnect = GNUNET_YES;
1542 if (ps->recv_endpoint!=NULL)
1544 //GNUNET_assert(CURLM_OK == curl_multi_remove_handle(plugin->multi_handle,ps->recv_endpoint));
1545 //curl_easy_cleanup(ps->recv_endpoint);
1546 //ps->recv_endpoint=NULL;
1547 ps->recv_force_disconnect = GNUNET_YES;
1551 if (ps->direction==INBOUND)
1553 ps->recv_force_disconnect = GNUNET_YES;
1554 ps->send_force_disconnect = GNUNET_YES;
1557 while (ps->pending_msgs_head!=NULL)
1559 remove_http_message(ps, ps->pending_msgs_head);
1561 ps->recv_active = GNUNET_NO;
1562 ps->send_active = GNUNET_NO;
1568 static int curl_schedule(void *cls)
1570 struct Plugin *plugin = cls;
1575 struct GNUNET_NETWORK_FDSet *grs;
1576 struct GNUNET_NETWORK_FDSet *gws;
1580 GNUNET_assert(cls !=NULL);
1582 /* Cancel previous scheduled task */
1583 if (plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
1585 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
1586 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
1592 mret = curl_multi_fdset (plugin->multi_handle, &rs, &ws, &es, &max);
1593 if (mret != CURLM_OK)
1595 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1596 _("%s failed at %s:%d: `%s'\n"),
1597 "curl_multi_fdset", __FILE__, __LINE__,
1598 curl_multi_strerror (mret));
1599 return GNUNET_SYSERR;
1601 mret = curl_multi_timeout (plugin->multi_handle, &to);
1602 if (mret != CURLM_OK)
1604 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1605 _("%s failed at %s:%d: `%s'\n"),
1606 "curl_multi_timeout", __FILE__, __LINE__,
1607 curl_multi_strerror (mret));
1608 return GNUNET_SYSERR;
1611 grs = GNUNET_NETWORK_fdset_create ();
1612 gws = GNUNET_NETWORK_fdset_create ();
1613 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
1614 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
1615 plugin->http_curl_task = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1616 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1617 GNUNET_SCHEDULER_NO_TASK,
1618 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),
1623 GNUNET_NETWORK_fdset_destroy (gws);
1624 GNUNET_NETWORK_fdset_destroy (grs);
1629 * Function setting up curl handle and selecting message to send
1631 * @param ses session to send data to
1632 * @param con connection
1633 * @return GNUNET_SYSERR on failure, GNUNET_NO if connecting, GNUNET_YES if ok
1635 static ssize_t send_check_connections (void *cls, struct Session *ps)
1637 struct Plugin *plugin = cls;
1639 struct HTTP_Message * msg;
1641 struct GNUNET_TIME_Relative timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
1643 GNUNET_assert(cls !=NULL);
1645 if (ps->direction == OUTBOUND)
1647 /* RECV DIRECTION */
1648 /* Check if session is connected to receive data, otherwise connect to peer */
1649 if (ps->recv_connected == GNUNET_NO)
1651 int fresh = GNUNET_NO;
1652 if (ps->recv_endpoint == NULL)
1655 ps->recv_endpoint = curl_easy_init();
1658 curl_easy_setopt(ps->recv_endpoint, CURLOPT_VERBOSE, 1L);
1660 curl_easy_setopt(ps->recv_endpoint, CURLOPT_URL, ps->url);
1661 curl_easy_setopt (ps->recv_endpoint, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
1662 //curl_easy_setopt (ps->recv_endpoint, CURLOPT_SSL_CIPHER_LIST, cipher_suite);
1663 curl_easy_setopt(ps->recv_endpoint, CURLOPT_SSL_VERIFYPEER, 0);
1664 curl_easy_setopt(ps->recv_endpoint, CURLOPT_SSL_VERIFYHOST, 0);
1665 curl_easy_setopt(ps->recv_endpoint, CURLOPT_HEADERFUNCTION, &curl_get_header_cb);
1666 curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEHEADER, ps);
1667 curl_easy_setopt(ps->recv_endpoint, CURLOPT_READFUNCTION, curl_send_cb);
1668 curl_easy_setopt(ps->recv_endpoint, CURLOPT_READDATA, ps);
1669 curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEFUNCTION, curl_receive_cb);
1670 curl_easy_setopt(ps->recv_endpoint, CURLOPT_WRITEDATA, ps);
1671 curl_easy_setopt(ps->recv_endpoint, CURLOPT_TIMEOUT, (long) timeout.value);
1672 curl_easy_setopt(ps->recv_endpoint, CURLOPT_PRIVATE, ps);
1673 curl_easy_setopt(ps->recv_endpoint, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
1674 curl_easy_setopt(ps->recv_endpoint, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
1676 if (fresh==GNUNET_YES)
1678 mret = curl_multi_add_handle(plugin->multi_handle, ps->recv_endpoint);
1679 if (mret != CURLM_OK)
1681 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1682 _("Connection: %X: %s failed at %s:%d: `%s'\n"),
1684 "curl_multi_add_handle", __FILE__, __LINE__,
1685 curl_multi_strerror (mret));
1686 return GNUNET_SYSERR;
1689 if (curl_schedule (plugin) == GNUNET_SYSERR)
1691 #if DEBUG_CONNECTIONS
1692 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: could not schedule curl task\n",ps);
1694 return GNUNET_SYSERR;
1696 #if DEBUG_CONNECTIONS
1697 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: inbound not connected, initiating connection\n",ps);
1701 /* waiting for receive direction */
1702 if (ps->recv_connected==GNUNET_NO)
1705 /* SEND DIRECTION */
1706 /* Check if session is connected to send data, otherwise connect to peer */
1707 if ((ps->send_connected == GNUNET_YES) && (ps->send_endpoint!= NULL))
1709 if (ps->send_active == GNUNET_YES)
1711 #if DEBUG_CONNECTIONS
1712 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound active, enqueueing message\n",ps);
1716 if (ps->send_active == GNUNET_NO)
1718 #if DEBUG_CONNECTIONS
1719 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound paused, unpausing existing connection and enqueueing message\n",ps);
1721 if (CURLE_OK == curl_easy_pause(ps->send_endpoint,CURLPAUSE_CONT))
1723 ps->send_active=GNUNET_YES;
1727 return GNUNET_SYSERR;
1730 /* not connected, initiate connection */
1731 if (ps->send_connected==GNUNET_NO)
1733 int fresh = GNUNET_NO;
1734 if (NULL == ps->send_endpoint)
1736 ps->send_endpoint = curl_easy_init();
1739 GNUNET_assert (ps->send_endpoint != NULL);
1740 GNUNET_assert (NULL != ps->pending_msgs_tail);
1741 #if DEBUG_CONNECTIONS
1742 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection %X: outbound not connected, initiating connection\n",ps);
1744 ps->send_active = GNUNET_NO;
1745 msg = ps->pending_msgs_tail;
1748 curl_easy_setopt(ps->send_endpoint, CURLOPT_VERBOSE, 1L);
1750 curl_easy_setopt(ps->send_endpoint, CURLOPT_URL, ps->url);
1751 curl_easy_setopt(ps->send_endpoint, CURLOPT_PUT, 1L);
1752 curl_easy_setopt(ps->send_endpoint, CURLOPT_HEADERFUNCTION, &curl_put_header_cb);
1753 curl_easy_setopt(ps->send_endpoint, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
1754 curl_easy_setopt(ps->send_endpoint, CURLOPT_SSL_VERIFYPEER, 0);
1755 curl_easy_setopt(ps->send_endpoint, CURLOPT_SSL_VERIFYHOST, 0);
1757 curl_easy_setopt(ps->send_endpoint, CURLOPT_WRITEHEADER, ps);
1758 curl_easy_setopt(ps->send_endpoint, CURLOPT_READFUNCTION, curl_send_cb);
1759 curl_easy_setopt(ps->send_endpoint, CURLOPT_READDATA, ps);
1760 curl_easy_setopt(ps->send_endpoint, CURLOPT_WRITEFUNCTION, curl_receive_cb);
1761 curl_easy_setopt(ps->send_endpoint, CURLOPT_READDATA, ps);
1762 curl_easy_setopt(ps->send_endpoint, CURLOPT_TIMEOUT, (long) timeout.value);
1763 curl_easy_setopt(ps->send_endpoint, CURLOPT_PRIVATE, ps);
1764 curl_easy_setopt(ps->send_endpoint, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
1765 curl_easy_setopt(ps->send_endpoint, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
1767 if (fresh==GNUNET_YES)
1769 mret = curl_multi_add_handle(plugin->multi_handle, ps->send_endpoint);
1770 if (mret != CURLM_OK)
1772 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1773 _("Connection: %X: %s failed at %s:%d: `%s'\n"),
1775 "curl_multi_add_handle", __FILE__, __LINE__,
1776 curl_multi_strerror (mret));
1777 return GNUNET_SYSERR;
1781 if (curl_schedule (plugin) == GNUNET_SYSERR)
1782 return GNUNET_SYSERR;
1785 if (ps->direction == INBOUND)
1787 GNUNET_assert (NULL != ps->pending_msgs_tail);
1788 if ((ps->recv_connected==GNUNET_YES) && (ps->send_connected==GNUNET_YES) &&
1789 (ps->recv_force_disconnect==GNUNET_NO) && (ps->recv_force_disconnect==GNUNET_NO))
1792 return GNUNET_SYSERR;
1795 static struct Session * send_select_session (void * cls, struct HTTP_PeerContext *pc, const void * addr, size_t addrlen, int force_address, struct Session * session)
1797 struct Session * tmp = NULL;
1798 int addr_given = GNUNET_NO;
1800 if ((addr!=NULL) && (addrlen>0))
1801 addr_given = GNUNET_YES;
1803 if (force_address == GNUNET_YES)
1805 /* check session given as argument */
1806 if ((session != NULL) && (addr_given == GNUNET_YES))
1808 if (0 == memcmp(session->addr, addr, addrlen))
1810 /* connection can not be used, since it is disconnected */
1811 if ((session->recv_force_disconnect==GNUNET_NO) && (session->send_force_disconnect==GNUNET_NO))
1813 #if DEBUG_SESSION_SELECTION
1814 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using session passed by transport to send to forced address \n", session);
1820 /* check last session used */
1821 if ((pc->last_session != NULL)&& (addr_given == GNUNET_YES))
1823 if (0 == memcmp(pc->last_session->addr, addr, addrlen))
1825 /* connection can not be used, since it is disconnected */
1826 if ((pc->last_session->recv_force_disconnect==GNUNET_NO) && (pc->last_session->send_force_disconnect==GNUNET_NO))
1828 #if DEBUG_SESSION_SELECTION
1829 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using last session used to send to forced address \n", pc->last_session);
1831 return pc->last_session;
1835 /* find session in existing sessions */
1837 while ((tmp!=NULL) && (addr_given == GNUNET_YES))
1840 if (0 == memcmp(tmp->addr, addr, addrlen))
1842 /* connection can not be used, since it is disconnected */
1843 if ((tmp->recv_force_disconnect==GNUNET_NO) && (tmp->send_force_disconnect==GNUNET_NO))
1845 #if DEBUG_SESSION_SELECTION
1846 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using existing session to send to forced address \n", session);
1854 /* no session to use */
1857 if ((force_address == GNUNET_NO) || (force_address == GNUNET_SYSERR))
1859 /* check session given as argument */
1860 if (session != NULL)
1862 /* connection can not be used, since it is disconnected */
1863 if ((session->recv_force_disconnect==GNUNET_NO) && (session->send_force_disconnect==GNUNET_NO))
1865 #if DEBUG_SESSION_SELECTION
1866 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using session passed by transport to send not-forced address \n", session);
1872 /* check last session used */
1873 if (pc->last_session != NULL)
1875 /* connection can not be used, since it is disconnected */
1876 if ((pc->last_session->recv_force_disconnect==GNUNET_NO) && (pc->last_session->send_force_disconnect==GNUNET_NO))
1878 #if DEBUG_SESSION_SELECTION
1879 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using last session to send to not-forced address \n", pc->last_session);
1881 return pc->last_session;
1884 /* find session in existing sessions */
1888 /* connection can not be used, since it is disconnected */
1889 if ((tmp->recv_force_disconnect==GNUNET_NO) && (tmp->send_force_disconnect==GNUNET_NO))
1891 #if DEBUG_SESSION_SELECTION
1892 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session %X selected: Using existing session to send to not-forced address \n", tmp);
1904 * Function that can be used by the transport service to transmit
1905 * a message using the plugin. Note that in the case of a
1906 * peer disconnecting, the continuation MUST be called
1907 * prior to the disconnect notification itself. This function
1908 * will be called with this peer's HELLO message to initiate
1909 * a fresh connection to another peer.
1911 * @param cls closure
1912 * @param target who should receive this message
1913 * @param msgbuf the message to transmit
1914 * @param msgbuf_size number of bytes in 'msgbuf'
1915 * @param priority how important is the message (most plugins will
1916 * ignore message priority and just FIFO)
1917 * @param timeout how long to wait at most for the transmission (does not
1918 * require plugins to discard the message after the timeout,
1919 * just advisory for the desired delay; most plugins will ignore
1921 * @param session which session must be used (or NULL for "any")
1922 * @param addr the address to use (can be NULL if the plugin
1923 * is "on its own" (i.e. re-use existing TCP connection))
1924 * @param addrlen length of the address in bytes
1925 * @param force_address GNUNET_YES if the plugin MUST use the given address,
1926 * GNUNET_NO means the plugin may use any other address and
1927 * GNUNET_SYSERR means that only reliable existing
1928 * bi-directional connections should be used (regardless
1930 * @param cont continuation to call once the message has
1931 * been transmitted (or if the transport is ready
1932 * for the next transmission call; or if the
1933 * peer disconnected...); can be NULL
1934 * @param cont_cls closure for cont
1935 * @return number of bytes used (on the physical network, with overheads);
1936 * -1 on hard errors (i.e. address invalid); 0 is a legal value
1937 * and does NOT mean that the message was not transmitted (DV)
1940 http_plugin_send (void *cls,
1941 const struct GNUNET_PeerIdentity *target,
1944 unsigned int priority,
1945 struct GNUNET_TIME_Relative to,
1946 struct Session *session,
1950 GNUNET_TRANSPORT_TransmitContinuation cont,
1953 struct Plugin *plugin = cls;
1954 struct HTTP_Message *msg;
1955 struct HTTP_PeerContext * pc;
1956 struct Session * ps = NULL;
1958 GNUNET_assert(cls !=NULL);
1961 char * force = GNUNET_malloc(40);
1962 if (force_address == GNUNET_YES)
1963 strcpy(force,"forced addr.");
1964 if (force_address == GNUNET_NO)
1965 strcpy(force,"any addr.");
1966 if (force_address == GNUNET_SYSERR)
1967 strcpy(force,"reliable bi-direc. address addr.");
1969 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Transport tells me to send %u bytes to `%s' using %s (%s) and session: %X\n",
1973 http_plugin_address_to_string(NULL, addr, addrlen),
1979 pc = GNUNET_CONTAINER_multihashmap_get (plugin->peers, &target->hashPubKey);
1983 pc = GNUNET_malloc(sizeof (struct HTTP_PeerContext));
1984 pc->plugin = plugin;
1985 pc->session_id_counter=1;
1986 pc->last_session = NULL;
1987 memcpy(&pc->identity, target, sizeof(struct GNUNET_PeerIdentity));
1988 GNUNET_CONTAINER_multihashmap_put(plugin->peers, &pc->identity.hashPubKey, pc, GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1989 GNUNET_STATISTICS_update (plugin->env->stats,
1990 gettext_noop ("# HTTP peers active"),
1995 ps = send_select_session (plugin, pc, addr, addrlen, force_address, session);
1997 /* session not existing, but address forced -> creating new session */
2000 if ((addr!=NULL) && (addrlen!=0))
2002 ps = GNUNET_malloc(sizeof (struct Session));
2003 #if DEBUG_SESSION_SELECTION
2004 if (force_address == GNUNET_YES)
2005 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection & forced address: creating new session %X to peer %s\n", ps, GNUNET_i2s(target));
2006 if (force_address != GNUNET_YES)
2007 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No existing connection: creating new session %X to peer %s\n", ps, GNUNET_i2s(target));
2009 if ((addrlen!=0) && (addr!=NULL))
2011 ps->addr = GNUNET_malloc(addrlen);
2012 memcpy(ps->addr,addr,addrlen);
2013 ps->addrlen = addrlen;
2020 ps->direction=OUTBOUND;
2021 ps->recv_connected = GNUNET_NO;
2022 ps->recv_force_disconnect = GNUNET_NO;
2023 ps->send_connected = GNUNET_NO;
2024 ps->send_force_disconnect = GNUNET_NO;
2025 ps->pending_msgs_head = NULL;
2026 ps->pending_msgs_tail = NULL;
2028 ps->session_id = pc->session_id_counter;
2029 pc->session_id_counter++;
2030 ps->url = create_url (plugin, ps->addr, ps->addrlen, ps->session_id);
2031 if (ps->msgtok == NULL)
2032 ps->msgtok = GNUNET_SERVER_mst_create (&curl_receive_mst_cb, ps);
2033 GNUNET_CONTAINER_DLL_insert(pc->head,pc->tail,ps);
2036 GNUNET_STATISTICS_update (plugin->env->stats,
2037 gettext_noop ("# HTTP outbound sessions for peers active"),
2044 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));
2046 return GNUNET_SYSERR;
2051 msg = GNUNET_malloc (sizeof (struct HTTP_Message) + msgbuf_size);
2053 msg->size = msgbuf_size;
2055 msg->buf = (char *) &msg[1];
2056 msg->transmit_cont = cont;
2057 msg->transmit_cont_cls = cont_cls;
2058 memcpy (msg->buf,msgbuf, msgbuf_size);
2059 GNUNET_CONTAINER_DLL_insert(ps->pending_msgs_head,ps->pending_msgs_tail,msg);
2061 if (send_check_connections (plugin, ps) != GNUNET_SYSERR)
2063 if (force_address != GNUNET_YES)
2064 pc->last_session = ps;
2066 if (pc->last_session==NULL)
2067 pc->last_session = ps;
2071 return GNUNET_SYSERR;
2077 * Function that can be used to force the plugin to disconnect
2078 * from the given peer and cancel all previous transmissions
2079 * (and their continuationc).
2081 * @param cls closure
2082 * @param target peer from which to disconnect
2085 * Convert the transports address to a nice, human-readable
2088 * @param cls closure
2089 * @param type name of the transport that generated the address
2090 * @param addr one of the addresses of the host, NULL for the last address
2091 * the specific address format depends on the transport
2092 * @param addrlen length of the address
2093 * @param numeric should (IP) addresses be displayed in numeric form?
2094 * @param timeout after how long should we give up?
2095 * @param asc function to call on each string
2096 * @param asc_cls closure for asc
2099 http_plugin_address_pretty_printer (void *cls,
2104 struct GNUNET_TIME_Relative timeout,
2105 GNUNET_TRANSPORT_AddressStringCallback
2108 const struct IPv4HttpAddress *t4;
2109 const struct IPv6HttpAddress *t6;
2110 struct sockaddr_in a4;
2111 struct sockaddr_in6 a6;
2117 GNUNET_assert(cls !=NULL);
2118 if (addrlen == sizeof (struct IPv6HttpAddress))
2120 address = GNUNET_malloc (INET6_ADDRSTRLEN);
2122 a6.sin6_addr = t6->ipv6_addr;
2123 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
2124 port = ntohs(t6->u6_port);
2126 else if (addrlen == sizeof (struct IPv4HttpAddress))
2128 address = GNUNET_malloc (INET_ADDRSTRLEN);
2130 a4.sin_addr.s_addr = t4->ipv4_addr;
2131 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
2132 port = ntohs(t4->u_port);
2136 /* invalid address */
2137 GNUNET_break_op (0);
2138 asc (asc_cls, NULL);
2141 res = GNUNET_asprintf(&ret,"%s://%s:%u/", PROTOCOL_PREFIX, address,port);
2142 GNUNET_free (address);
2143 GNUNET_assert(res != 0);
2145 GNUNET_free_non_null (ret);
2151 * Another peer has suggested an address for this
2152 * peer and transport plugin. Check that this could be a valid
2153 * address. If so, consider adding it to the list
2156 * @param cls closure
2157 * @param addr pointer to the address
2158 * @param addrlen length of addr
2159 * @return GNUNET_OK if this is a plausible address for this peer
2163 http_plugin_address_suggested (void *cls,
2164 const void *addr, size_t addrlen)
2166 struct Plugin *plugin = cls;
2167 struct IPv4HttpAddress *v4;
2168 struct IPv6HttpAddress *v6;
2171 GNUNET_assert(cls !=NULL);
2172 if ((addrlen != sizeof (struct IPv4HttpAddress)) &&
2173 (addrlen != sizeof (struct IPv6HttpAddress)))
2175 return GNUNET_SYSERR;
2177 if (addrlen == sizeof (struct IPv4HttpAddress))
2179 v4 = (struct IPv4HttpAddress *) addr;
2180 /* Not skipping loopback
2181 if (INADDR_LOOPBACK == ntohl(v4->ipv4_addr))
2183 return GNUNET_SYSERR;
2185 port = ntohs (v4->u_port);
2186 if (port != plugin->port_inbound)
2188 return GNUNET_SYSERR;
2191 if (addrlen == sizeof (struct IPv6HttpAddress))
2193 v6 = (struct IPv6HttpAddress *) addr;
2194 if (IN6_IS_ADDR_LINKLOCAL (&v6->ipv6_addr))
2196 return GNUNET_SYSERR;
2198 port = ntohs (v6->u6_port);
2199 if (port != plugin->port_inbound)
2201 return GNUNET_SYSERR;
2210 * Function called for a quick conversion of the binary address to
2211 * a numeric address. Note that the caller must not free the
2212 * address and that the next call to this function is allowed
2213 * to override the address again.
2215 * @param cls closure
2216 * @param addr binary address
2217 * @param addrlen length of the address
2218 * @return string representing the same address
2221 http_plugin_address_to_string (void *cls,
2225 const struct IPv4HttpAddress *t4;
2226 const struct IPv6HttpAddress *t6;
2227 struct sockaddr_in a4;
2228 struct sockaddr_in6 a6;
2234 if (addrlen == sizeof (struct IPv6HttpAddress))
2236 address = GNUNET_malloc (INET6_ADDRSTRLEN);
2238 a6.sin6_addr = t6->ipv6_addr;
2239 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
2240 port = ntohs(t6->u6_port);
2242 else if (addrlen == sizeof (struct IPv4HttpAddress))
2244 address = GNUNET_malloc (INET_ADDRSTRLEN);
2246 a4.sin_addr.s_addr = t4->ipv4_addr;
2247 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
2248 port = ntohs(t4->u_port);
2252 /* invalid address */
2255 res = GNUNET_asprintf(&ret,"%s:%u",address,port);
2256 GNUNET_free (address);
2257 GNUNET_assert(res != 0);
2262 load_certificate( const char * file )
2264 struct GNUNET_DISK_FileHandle * gn_file;
2269 if (0!=STAT(file, &fstat))
2271 text = GNUNET_malloc (fstat.st_size);
2272 gn_file = GNUNET_DISK_file_open(file,GNUNET_DISK_OPEN_READ, GNUNET_DISK_PERM_USER_READ);
2278 if (GNUNET_SYSERR == GNUNET_DISK_file_read(gn_file, text, fstat.st_size))
2283 text[fstat.st_size] = '\0';
2284 GNUNET_DISK_file_close(gn_file);
2291 * Exit point from the plugin.
2294 libgnunet_plugin_transport_https_done (void *cls)
2296 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
2297 struct Plugin *plugin = api->cls;
2299 GNUNET_assert(cls !=NULL);
2301 if (plugin->http_server_daemon_v4 != NULL)
2303 MHD_stop_daemon (plugin->http_server_daemon_v4);
2304 plugin->http_server_daemon_v4 = NULL;
2306 if (plugin->http_server_daemon_v6 != NULL)
2308 MHD_stop_daemon (plugin->http_server_daemon_v6);
2309 plugin->http_server_daemon_v6 = NULL;
2312 if ( plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
2314 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v4);
2315 plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;
2318 if ( plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
2320 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v6);
2321 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
2325 /* free all peer information */
2326 if (plugin->peers!=NULL)
2328 GNUNET_CONTAINER_multihashmap_iterate (plugin->peers,
2329 &remove_peer_context_Iterator,
2331 GNUNET_CONTAINER_multihashmap_destroy (plugin->peers);
2333 if (plugin->multi_handle!=NULL)
2335 mret = curl_multi_cleanup(plugin->multi_handle);
2337 if ( CURLM_OK != mret)
2338 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed\n");
2340 plugin->multi_handle = NULL;
2342 curl_global_cleanup();
2344 if ( plugin->http_curl_task != GNUNET_SCHEDULER_NO_TASK)
2346 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_curl_task);
2347 plugin->http_curl_task = GNUNET_SCHEDULER_NO_TASK;
2350 GNUNET_free_non_null (plugin->bind4_address);
2351 GNUNET_free_non_null (plugin->bind6_address);
2352 GNUNET_free_non_null (plugin->bind_hostname);
2353 GNUNET_free_non_null (plugin->crypto_init);
2354 GNUNET_free (plugin);
2357 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unload http plugin complete...\n");
2364 * Entry point for the plugin.
2367 libgnunet_plugin_transport_https_init (void *cls)
2369 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
2370 struct Plugin *plugin;
2371 struct GNUNET_TRANSPORT_PluginFunctions *api;
2372 struct GNUNET_TIME_Relative gn_timeout;
2373 long long unsigned int port;
2378 GNUNET_assert(cls !=NULL);
2380 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting https plugin...\n");
2383 plugin = GNUNET_malloc (sizeof (struct Plugin));
2384 plugin->stats = env->stats;
2386 plugin->peers = NULL;
2387 plugin->bind4_address = NULL;
2388 plugin->use_ipv6 = GNUNET_YES;
2389 plugin->use_ipv4 = GNUNET_YES;
2391 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
2393 api->send = &http_plugin_send;
2394 api->disconnect = &http_plugin_disconnect;
2395 api->address_pretty_printer = &http_plugin_address_pretty_printer;
2396 api->check_address = &http_plugin_address_suggested;
2397 api->address_to_string = &http_plugin_address_to_string;
2399 /* Hashing our identity to use it in URLs */
2400 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &plugin->my_ascii_hash_ident);
2402 /* Use IPv6 yes/no */
2403 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2404 "transport-https", "USE_IPv6"))
2406 plugin->use_ipv6 = GNUNET_CONFIGURATION_get_value_yesno (env->cfg,
2410 /* Use IPv4 yes/no */
2411 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2412 "transport-https", "USE_IPv4"))
2414 plugin->use_ipv4 = GNUNET_CONFIGURATION_get_value_yesno (env->cfg,
2418 /* Reading port number from config file */
2420 GNUNET_CONFIGURATION_get_value_number (env->cfg,
2426 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2428 _("Require valid port number for transport plugin `%s' in configuration!\n"),
2430 libgnunet_plugin_transport_https_done (api);
2434 /* Reading ipv4 addresse to bind to from config file */
2435 if ((plugin->use_ipv4==GNUNET_YES) && (GNUNET_CONFIGURATION_have_value (env->cfg,
2436 "transport-https", "BINDTO4")))
2438 GNUNET_break (GNUNET_OK ==
2439 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2442 &plugin->bind_hostname));
2443 plugin->bind4_address = GNUNET_malloc(sizeof(struct sockaddr_in));
2444 plugin->bind4_address->sin_family = AF_INET;
2445 plugin->bind4_address->sin_port = htons (port);
2447 if (inet_pton(AF_INET,plugin->bind_hostname, &plugin->bind4_address->sin_addr)<=0)
2449 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2451 _("Misconfigured address to bind to in configuration!\n"),
2453 GNUNET_free(plugin->bind4_address);
2454 GNUNET_free(plugin->bind_hostname);
2455 plugin->bind_hostname = NULL;
2456 plugin->bind4_address = NULL;
2460 /* Get crypto init string from config */
2461 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2462 "transport-https", "CRYPTO_INIT"))
2464 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2467 &plugin->crypto_init);
2471 GNUNET_asprintf(&plugin->crypto_init,"NORMAL");
2474 /* Get private key file from config */
2475 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2476 "transport-https", "CERT_FILE"))
2478 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2485 GNUNET_asprintf(&cert_file,"https.cert");
2488 /* Get private key file from config */
2489 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2490 "transport-https", "KEY_FILE"))
2492 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2499 GNUNET_asprintf(&key_file,"https.key");
2502 /* Get private key file from config */
2503 if (GNUNET_CONFIGURATION_have_value (env->cfg,
2504 "transport-https", "CERT_FILE"))
2506 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2513 GNUNET_asprintf(&cert_file,"https.cert");
2516 /* Reading ipv4 addresse to bind to from config file */
2517 if ((plugin->use_ipv6==GNUNET_YES) && (GNUNET_CONFIGURATION_have_value (env->cfg,
2518 "transport-https", "BINDTO6")))
2520 GNUNET_break (GNUNET_OK ==
2521 GNUNET_CONFIGURATION_get_value_string (env->cfg,
2524 &plugin->bind_hostname));
2526 plugin->bind6_address = GNUNET_malloc(sizeof(struct sockaddr_in6));
2527 plugin->bind6_address->sin6_family = AF_INET6;
2528 plugin->bind6_address->sin6_port = htons (port);
2530 if (inet_pton(AF_INET6,plugin->bind_hostname, &plugin->bind6_address->sin6_addr)<=0)
2532 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2534 _("Misconfigured address to bind to in configuration!\n"),
2536 GNUNET_free(plugin->bind6_address);
2537 GNUNET_free(plugin->bind_hostname);
2538 plugin->bind_hostname = NULL;
2539 plugin->bind6_address = NULL;
2543 /* read key & certificates from file */
2544 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Loading TLS certificate `%s' `%s'\n", key_file, cert_file);
2546 plugin->key = load_certificate( key_file );
2547 plugin->cert = load_certificate( cert_file );
2549 if ((plugin->key==NULL) || (plugin->cert==NULL))
2553 GNUNET_asprintf(&cmd,"gnunet-transport-certificate-creation %s %s", key_file, cert_file);
2554 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "No usable TLS certificate found, creating certificate \n");
2559 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2561 _("Could not create a new TLS certificate, shell script `%s' failed!\n"),cmd,
2563 GNUNET_free (key_file);
2564 GNUNET_free (cert_file);
2565 libgnunet_plugin_transport_https_done(api);
2572 plugin->key = load_certificate( key_file );
2573 plugin->cert = load_certificate( cert_file );
2575 if ((plugin->key==NULL) || (plugin->cert==NULL))
2577 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2579 _("No usable TLS certificate found and creating one failed! \n"),
2581 GNUNET_free (key_file);
2582 GNUNET_free (cert_file);
2583 libgnunet_plugin_transport_https_done(api);
2588 GNUNET_free (key_file);
2589 GNUNET_free (cert_file);
2592 GNUNET_assert((plugin->key!=NULL) && (plugin->cert!=NULL));
2593 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "TLS certificate loaded\n", key_file, cert_file);
2595 GNUNET_assert ((port > 0) && (port <= 65535));
2596 plugin->port_inbound = port;
2597 gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
2598 unsigned int timeout = (gn_timeout.value) / 1000;
2599 if ((plugin->http_server_daemon_v6 == NULL) && (plugin->use_ipv6 == GNUNET_YES) && (port != 0))
2601 struct sockaddr * tmp = (struct sockaddr *) plugin->bind6_address;
2602 plugin->http_server_daemon_v6 = MHD_start_daemon (
2603 #if DEBUG_CONNECTIONS
2606 MHD_USE_IPv6 | MHD_USE_SSL,
2609 plugin , &mdh_access_cb, plugin,
2610 /*MHD_OPTION_HTTPS_PRIORITIES, "NORMAL:",*/
2611 /*MHD_OPTION_HTTPS_PRIORITIES, "PERFORMANCE:",*/
2612 /* MHD_OPTION_HTTPS_PRIORITIES, "NONE:+VERS-TLS1.0:+ARCFOUR-128:+SHA1:+RSA:+COMP-NULL", */
2613 /*MHD_OPTION_HTTPS_PRIORITIES, "NONE:+VERS-TLS1.0:+ARCFOUR-128:+MD5:+RSA:+COMP-NULL",*/
2614 MHD_OPTION_HTTPS_PRIORITIES, plugin->crypto_init,
2615 MHD_OPTION_HTTPS_MEM_KEY, plugin->key,
2616 MHD_OPTION_HTTPS_MEM_CERT, plugin->cert,
2617 MHD_OPTION_SOCK_ADDR, tmp,
2618 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 32,
2619 //MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 6,
2620 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) timeout,
2621 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
2622 MHD_OPTION_NOTIFY_COMPLETED, &mhd_termination_cb, NULL,
2625 if ((plugin->http_server_daemon_v4 == NULL) && (plugin->use_ipv4 == GNUNET_YES) && (port != 0))
2627 plugin->http_server_daemon_v4 = MHD_start_daemon (
2628 #if DEBUG_CONNECTIONS
2631 MHD_NO_FLAG | MHD_USE_SSL,
2634 plugin , &mdh_access_cb, plugin,
2635 /*MHD_OPTION_HTTPS_PRIORITIES, "NORMAL:",*/
2636 /*MHD_OPTION_HTTPS_PRIORITIES, "PERFORMANCE:",*/
2637 /* MHD_OPTION_HTTPS_PRIORITIES, "NONE:+VERS-TLS1.0:+ARCFOUR-128:+SHA1:+RSA:+COMP-NULL", */
2638 /*MHD_OPTION_HTTPS_PRIORITIES, "NONE:+VERS-TLS1.0:+ARCFOUR-128:+MD5:+RSA:+COMP-NULL",*/
2639 MHD_OPTION_HTTPS_PRIORITIES, plugin->crypto_init,
2640 MHD_OPTION_HTTPS_MEM_KEY, plugin->key,
2641 MHD_OPTION_HTTPS_MEM_CERT, plugin->cert,
2642 MHD_OPTION_SOCK_ADDR, (struct sockaddr_in *)plugin->bind4_address,
2643 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 32,
2644 //MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 6,
2645 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) timeout,
2646 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
2647 MHD_OPTION_NOTIFY_COMPLETED, &mhd_termination_cb, NULL,
2650 if (plugin->http_server_daemon_v4 != NULL)
2651 plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
2652 if (plugin->http_server_daemon_v6 != NULL)
2653 plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
2656 if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
2659 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);
2662 else if ((plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK) && (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK))
2665 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);
2668 else if ((plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK) && (plugin->http_server_task_v4 == GNUNET_SCHEDULER_NO_TASK))
2671 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);
2677 if ((plugin->use_ipv6 == GNUNET_YES) && (plugin->use_ipv4 == GNUNET_YES))
2678 GNUNET_asprintf(&tmp,"with IPv4 and IPv6 enabled");
2679 if ((plugin->use_ipv6 == GNUNET_NO) && (plugin->use_ipv4 == GNUNET_YES))
2680 GNUNET_asprintf(&tmp,"with IPv4 enabled");
2681 if ((plugin->use_ipv6 == GNUNET_YES) && (plugin->use_ipv4 == GNUNET_NO))
2682 GNUNET_asprintf(&tmp,"with IPv6 enabled");
2683 if ((plugin->use_ipv6 == GNUNET_NO) && (plugin->use_ipv4 == GNUNET_NO))
2684 GNUNET_asprintf(&tmp,"with NO IP PROTOCOL enabled");
2685 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,"HTTPS Server with %s could not be started on port %u! https plugin failed!\n",tmp, port);
2687 libgnunet_plugin_transport_https_done (api);
2691 /* Initializing cURL */
2692 curl_global_init(CURL_GLOBAL_ALL);
2693 plugin->multi_handle = curl_multi_init();
2695 if ( NULL == plugin->multi_handle )
2697 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
2699 _("Could not initialize curl multi handle, failed to start http plugin!\n"),
2701 libgnunet_plugin_transport_https_done (api);
2705 plugin->peers = GNUNET_CONTAINER_multihashmap_create (10);
2706 GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
2711 /* end of plugin_transport_https.c */