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 2, 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_template.c
23 * @brief template for a new transport service
24 * @author Christian Grothoff
28 #include "gnunet_constants.h"
29 #include "gnunet_protocols.h"
30 #include "gnunet_connection_lib.h"
31 #include "gnunet_server_lib.h"
32 #include "gnunet_service_lib.h"
33 #include "gnunet_statistics_service.h"
34 #include "gnunet_transport_service.h"
35 #include "gnunet_resolver_service.h"
36 #include "gnunet_server_lib.h"
37 #include "gnunet_container_lib.h"
38 #include "plugin_transport.h"
39 #include "gnunet_os_lib.h"
40 #include "microhttpd.h"
41 #include <curl/curl.h>
44 #define DEBUG_CURL GNUNET_YES
45 #define DEBUG_HTTP GNUNET_NO
48 * Text of the response sent back after the last bytes of a PUT
49 * request have been received (just to formally obey the HTTP
52 #define HTTP_PUT_RESPONSE "Thank you!"
55 * After how long do we expire an address that we
56 * learned from another peer if it is not reconfirmed
59 #define LEARNED_ADDRESS_EXPIRATION GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 6)
62 * Page returned if request invalid
64 #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>"
67 * Timeout for a http connect
69 #define HTTP_CONNECT_TIMEOUT 30
72 * Timeout for a http connect
74 #define HTTP_MESSAGE_INITIAL_BUFFERSIZE GNUNET_SERVER_MAX_MESSAGE_SIZE
78 * Network format for IPv4 addresses.
80 struct IPv4HttpAddress
83 * IPv4 address, in network byte order.
88 * Port number, in network byte order.
96 * Network format for IPv6 addresses.
98 struct IPv6HttpAddress
103 struct in6_addr ipv6_addr;
106 * Port number, in network byte order.
115 * Message to send using http
120 * Next field for linked list
122 struct HTTP_Message * next;
125 * buffer containing data to send
130 * amount of data already sent
142 * Continuation function to call once the transmission buffer
143 * has again space available. NULL if there is no
144 * continuation to call.
146 GNUNET_TRANSPORT_TransmitContinuation transmit_cont;
149 * Closure for transmit_cont.
151 void *transmit_cont_cls;
153 unsigned int http_result_code;
158 * Session handle for connections.
164 * Stored in a linked list.
166 struct Session *next;
169 * Pointer to the global plugin struct.
171 struct Plugin *plugin;
174 * To whom are we talking to (set to our identity
175 * if we are still waiting for the welcome message)
177 struct GNUNET_PeerIdentity partner;
180 * Sender's ip address to distinguish between incoming connections
182 //struct sockaddr_in * addr_inbound;
185 * Sender's ip address to distinguish between incoming connections
196 * Sender's ip address to distinguish between incoming connections
198 //char * addr_inbound_str;
202 * Sender's ip address specified by transport
204 //struct sockaddr_in * addr_outbound;
207 * Did we initiate the connection (GNUNET_YES) or the other peer (GNUNET_NO)?
212 * Is the connection active (GNUNET_YES) or terminated (GNUNET_NO)?
217 * At what time did we reset last_received last?
219 struct GNUNET_TIME_Absolute last_quota_update;
222 * How many bytes have we received since the "last_quota_update"
225 uint64_t last_received;
228 * Number of bytes per ms that this peer is allowed
234 * Is there a HTTP/PUT in progress?
236 int is_put_in_progress;
239 * Is the http request invalid?
246 struct GNUNET_CRYPTO_HashAsciiEncoded hash;
248 struct HTTP_Message * pending_outbound_msg;
250 struct HTTP_Message * pending_inbound_msg;
254 struct GNUNET_SERVER_MessageStreamTokenizer * msgtok;
258 * Encapsulation of all of the state of the plugin.
265 struct GNUNET_TRANSPORT_PluginEnvironment *env;
267 unsigned int port_inbound;
270 * Hashmap for all existing sessions.
272 struct GNUNET_CONTAINER_MultiHashMap *sessions;
276 * Daemon for listening for new IPv4 connections.
278 static struct MHD_Daemon *http_daemon_v4;
281 * Daemon for listening for new IPv6connections.
283 static struct MHD_Daemon *http_daemon_v6;
286 * Our primary task for http daemon handling IPv4 connections
288 static GNUNET_SCHEDULER_TaskIdentifier http_task_v4;
291 * Our primary task for http daemon handling IPv6 connections
293 static GNUNET_SCHEDULER_TaskIdentifier http_task_v6;
297 * The task sending data
299 static GNUNET_SCHEDULER_TaskIdentifier http_task_send;
303 * Information about this plugin
305 static struct Plugin *plugin;
310 static CURLM *multi_handle;
313 * Our ASCII encoded, hashed peer identity
314 * This string is used to distinguish between connections and is added to the urls
316 static struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
318 // MW: please document (which timeout is this!?)
319 static struct GNUNET_TIME_Relative timeout;
323 * Create a new session
325 * @param addr_in address the peer is using inbound
326 * @param addr_out address the peer is using outbound
327 * @param peer identity
328 * @return created session object
330 static struct Session * create_session (char * addr_in, size_t addrlen_in, char * addr_out, size_t addrlen_out, const struct GNUNET_PeerIdentity *peer)
332 struct Session * ses = GNUNET_malloc ( sizeof( struct Session) );
336 ses->addr_in = GNUNET_malloc (addrlen_in);
337 ses->addr_in_len = addrlen_in;
338 memcpy(ses->addr_in,addr_in,addrlen_in);
341 if (addrlen_out != 0)
343 ses->addr_out = GNUNET_malloc (addrlen_out);
344 ses->addr_out_len = addrlen_out;
345 memcpy(ses->addr_out,addr_out,addrlen_out);
347 ses->plugin = plugin;
348 memcpy(&ses->partner, peer, sizeof (struct GNUNET_PeerIdentity));
349 GNUNET_CRYPTO_hash_to_enc(&ses->partner.hashPubKey,&(ses->hash));
350 ses->is_active = GNUNET_NO;
351 ses->pending_inbound_msg = GNUNET_malloc( sizeof (struct HTTP_Message));
352 ses->pending_inbound_msg->buf = GNUNET_malloc(GNUNET_SERVER_MAX_MESSAGE_SIZE);
353 ses->pending_inbound_msg->len = GNUNET_SERVER_MAX_MESSAGE_SIZE;
354 ses->pending_inbound_msg->pos = 0;
360 * Callback called by MHD when a connection is terminated
362 static void requestCompletedCallback (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
366 cs = *httpSessionCache;
369 /*GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection from peer `%s' was terminated\n",GNUNET_i2s(&cs->partner));*/
370 /* session set to inactive */
371 cs->is_active = GNUNET_NO;
372 cs->is_put_in_progress = GNUNET_NO;
376 static void messageTokenizerCallback (void *cls,
379 GNUNET_MessageHeader *
382 struct Session * cs = cls;
383 GNUNET_assert(cs != NULL);
385 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
386 "Received message with type %u and size %u from `%s'\n",
387 ntohs(message->type),
388 ntohs(message->size),
389 GNUNET_i2s(&(cs->partner)));
390 plugin->env->receive(plugin->env->cls,
395 /*(char *)cs->addr_in,
400 * Check if ip is allowed to connect.
403 acceptPolicyCallback (void *cls,
404 const struct sockaddr *addr, socklen_t addr_len)
406 /* Every connection is accepted, nothing more to do here */
411 * Process GET or PUT request received via MHD. For
412 * GET, queue response that will send back our pending
413 * messages. For PUT, process incoming data and send
414 * to GNUnet core. In either case, check if a session
415 * already exists and create a new one if not.
418 accessHandlerCallback (void *cls,
419 struct MHD_Connection *session,
423 const char *upload_data,
424 size_t * upload_data_size, void **httpSessionCache)
426 struct MHD_Response *response;
428 const union MHD_ConnectionInfo * conn_info;
429 struct sockaddr_in *addrin;
430 struct sockaddr_in6 *addrin6;
431 char address[INET6_ADDRSTRLEN+14];
432 struct GNUNET_PeerIdentity pi_in;
434 struct GNUNET_MessageHeader *cur_msg;
435 int send_error_to_client;
436 struct IPv4HttpAddress ipv4addr;
437 struct IPv6HttpAddress ipv6addr;
440 send_error_to_client = GNUNET_NO;
442 if ( NULL == *httpSessionCache)
444 /* check url for peer identity */
445 res = GNUNET_CRYPTO_hash_from_string ( &url[1], &(pi_in.hashPubKey));
446 if ( GNUNET_SYSERR == res )
448 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
449 res = MHD_queue_response (session, MHD_HTTP_NOT_FOUND, response);
450 MHD_destroy_response (response);
452 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");
454 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
458 conn_info = MHD_get_connection_info(session, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
459 /* Incoming IPv4 connection */
460 if ( AF_INET == conn_info->client_addr->sin_family)
462 addrin = conn_info->client_addr;
463 inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
464 memcpy(&ipv4addr.ipv4_addr,&(addrin->sin_addr),sizeof(struct in_addr));
465 ipv4addr.u_port = addrin->sin_port;
467 /* Incoming IPv6 connection */
468 if ( AF_INET6 == conn_info->client_addr->sin_family)
470 addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
471 inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
472 memcpy(&ipv6addr.ipv6_addr,&(addrin6->sin6_addr),sizeof(struct in_addr));
473 ipv6addr.u6_port = addrin6->sin6_port;
475 /* find existing session for address */
476 cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &pi_in.hashPubKey);
477 /* no existing session, create a new one*/
480 /* create new session object */
481 if ( AF_INET6 == conn_info->client_addr->sin_family)
482 cs = create_session((char *) &ipv6addr, sizeof(struct IPv6HttpAddress),NULL, 0, &pi_in);
483 if ( AF_INET == conn_info->client_addr->sin_family)
484 cs = create_session((char *) &ipv4addr, sizeof(struct IPv4HttpAddress),NULL, 0, &pi_in);
486 /* Insert session into hashmap */
487 GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
488 &cs->partner.hashPubKey,
490 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
492 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"New Session for peer `%s' inserted\n", GNUNET_i2s(&cs->partner));
495 /* Set closure and update current session*/
496 if (*httpSessionCache == NULL)
498 *httpSessionCache = cs;
499 /* Updating session */
501 memcpy(cs->addr_inbound,conn_info->client_addr, sizeof(struct sockaddr_in));
502 if ( AF_INET == cs->addr_inbound->sin_family)
504 GNUNET_asprintf(&cs->addr_inbound_str,"%s:%u",address,ntohs(cs->addr_inbound->sin_port));
507 if ( AF_INET6 == cs->addr_inbound->sin_family)
509 GNUNET_asprintf(&cs->addr_inbound_str,"[%s]:%u",address,ntohs(cs->addr_inbound->sin_port));
513 if (cs->msgtok==NULL)
514 cs->msgtok = GNUNET_SERVER_mst_create (GNUNET_SERVER_MAX_MESSAGE_SIZE, cs, &messageTokenizerCallback, cs);
516 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Daemon has new an incoming `%s' request from peer `%s'\n",method, GNUNET_i2s(&cs->partner));
520 cs = *httpSessionCache;
522 /* Is it a PUT or a GET request */
523 if ( 0 == strcmp (MHD_HTTP_METHOD_PUT, method) )
526 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_NO))
528 if (cs->pending_inbound_msg->pos !=0 )
530 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
531 _("Incoming message from peer `%s', while existing message with %u bytes was not forwarded to transport'\n"),
532 GNUNET_i2s(&cs->partner), cs->pending_inbound_msg->pos);
533 cs->pending_inbound_msg->pos = 0;
536 cs->is_put_in_progress = GNUNET_YES;
537 cs->is_bad_request = GNUNET_NO;
538 cs->is_active = GNUNET_YES;
542 if ((*upload_data_size > 0) && (cs->is_bad_request != GNUNET_YES))
544 if ((*upload_data_size + cs->pending_inbound_msg->pos < cs->pending_inbound_msg->len) && (*upload_data_size + cs->pending_inbound_msg->pos <= GNUNET_SERVER_MAX_MESSAGE_SIZE))
546 /* copy uploaded data to buffer */
547 memcpy(&cs->pending_inbound_msg->buf[cs->pending_inbound_msg->pos],upload_data,*upload_data_size);
548 cs->pending_inbound_msg->pos += *upload_data_size;
549 *upload_data_size = 0;
554 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"%u bytes not added to message of %u bytes, message to big\n",*upload_data_size, cs->pending_inbound_msg->pos);
555 cs->is_bad_request = GNUNET_YES;
556 /* (*upload_data_size) bytes not processed */
561 if ((cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_YES))
563 *upload_data_size = 0;
564 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
565 res = MHD_queue_response (session, MHD_HTTP_REQUEST_ENTITY_TOO_LARGE, response);
568 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 413 Request Entity Too Large as PUT Response\n");
569 cs->is_bad_request = GNUNET_NO;
570 cs->is_put_in_progress =GNUNET_NO;
571 cs->pending_inbound_msg->pos = 0;
573 MHD_destroy_response (response);
577 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_NO))
579 send_error_to_client = GNUNET_YES;
581 if (cs->pending_inbound_msg->pos >= sizeof (struct GNUNET_MessageHeader))
583 cur_msg = (struct GNUNET_MessageHeader *) cs->pending_inbound_msg->buf;
584 res = GNUNET_SERVER_mst_receive(cs->msgtok,cs->pending_inbound_msg->buf,cs->pending_inbound_msg->pos, GNUNET_YES, GNUNET_NO);
585 if ((res != GNUNET_SYSERR) && (res != GNUNET_NO))
586 send_error_to_client = GNUNET_NO;
588 if (send_error_to_client == GNUNET_NO)
590 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
591 res = MHD_queue_response (session, MHD_HTTP_OK, response);
592 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 200 OK as PUT Response\n",HTTP_PUT_RESPONSE, strlen (HTTP_PUT_RESPONSE), res );
593 MHD_destroy_response (response);
597 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
598 res = MHD_queue_response (session, MHD_HTTP_BAD_REQUEST, response);
599 MHD_destroy_response (response);
600 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 400 BAD REQUEST as PUT Response\n");
602 cs->is_put_in_progress = GNUNET_NO;
603 cs->is_bad_request = GNUNET_NO;
604 cs->pending_inbound_msg->pos = 0;
608 if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
610 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Got GET Request\n");
611 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"URL: `%s'\n",url);
612 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
613 res = MHD_queue_response (session, MHD_HTTP_OK, response);
614 MHD_destroy_response (response);
622 * Call MHD to process pending requests and then go back
623 * and schedule the next run.
625 static void http_daemon_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
628 * Function that queries MHD's select sets and
629 * starts the task waiting for them.
631 static GNUNET_SCHEDULER_TaskIdentifier
632 http_daemon_prepare (struct MHD_Daemon *daemon_handle)
634 GNUNET_SCHEDULER_TaskIdentifier ret;
638 struct GNUNET_NETWORK_FDSet *wrs;
639 struct GNUNET_NETWORK_FDSet *wws;
640 struct GNUNET_NETWORK_FDSet *wes;
642 unsigned long long timeout;
644 struct GNUNET_TIME_Relative tv;
649 wrs = GNUNET_NETWORK_fdset_create ();
650 wes = GNUNET_NETWORK_fdset_create ();
651 wws = GNUNET_NETWORK_fdset_create ();
653 GNUNET_assert (MHD_YES ==
654 MHD_get_fdset (daemon_handle,
659 haveto = MHD_get_timeout (daemon_handle, &timeout);
660 if (haveto == MHD_YES)
661 tv.value = (uint64_t) timeout;
663 tv = GNUNET_TIME_UNIT_FOREVER_REL;
664 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
665 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
666 GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
667 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
668 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
669 GNUNET_SCHEDULER_NO_TASK,
675 GNUNET_NETWORK_fdset_destroy (wrs);
676 GNUNET_NETWORK_fdset_destroy (wws);
677 GNUNET_NETWORK_fdset_destroy (wes);
682 * Call MHD to process pending requests and then go back
683 * and schedule the next run.
685 static void http_daemon_run (void *cls,
686 const struct GNUNET_SCHEDULER_TaskContext *tc)
688 struct MHD_Daemon *daemon_handle = cls;
690 if (daemon_handle == http_daemon_v4)
691 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
693 if (daemon_handle == http_daemon_v6)
694 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
696 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
699 GNUNET_assert (MHD_YES == MHD_run (daemon_handle));
700 if (daemon_handle == http_daemon_v4)
701 http_task_v4 = http_daemon_prepare (daemon_handle);
702 if (daemon_handle == http_daemon_v6)
703 http_task_v6 = http_daemon_prepare (daemon_handle);
708 * Removes a message from the linked list of messages
709 * @param ses session to remove message from
710 * @param msg message to remove
711 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
714 static int remove_http_message(struct Session * ses, struct HTTP_Message * msg)
716 struct HTTP_Message * cur;
717 struct HTTP_Message * next;
719 cur = ses->pending_outbound_msg;
723 return GNUNET_SYSERR;
727 ses->pending_outbound_msg = cur->next;
728 GNUNET_free (cur->buf);
729 GNUNET_free (cur->dest_url);
735 while (cur->next!=msg)
737 if (cur->next != NULL)
740 return GNUNET_SYSERR;
743 cur->next = cur->next->next;
744 GNUNET_free (cur->next->buf);
745 GNUNET_free (cur->next->dest_url);
746 GNUNET_free (cur->next);
752 static size_t header_function( void *ptr, size_t size, size_t nmemb, void *stream)
755 size_t len = size * nmemb;
756 struct Session * ses = stream;
759 if ((size * nmemb) < SIZE_MAX)
760 tmp = GNUNET_malloc (len+1);
762 if ((tmp != NULL) && (len > 0))
767 if (tmp[len-2] == 13)
771 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s'\n",tmp);
773 if (0==strcmp (tmp,"HTTP/1.1 100 Continue"))
775 ses->pending_outbound_msg->http_result_code=100;
777 if (0==strcmp (tmp,"HTTP/1.1 200 OK"))
779 ses->pending_outbound_msg->http_result_code=200;
781 if (0==strcmp (tmp,"HTTP/1.1 400 Bad Request"))
783 ses->pending_outbound_msg->http_result_code=400;
785 if (0==strcmp (tmp,"HTTP/1.1 404 Not Found"))
787 ses->pending_outbound_msg->http_result_code=404;
789 if (0==strcmp (tmp,"HTTP/1.1 413 Request Entity Too Large"))
791 ses->pending_outbound_msg->http_result_code=413;
801 * Callback method used with libcurl
802 * Method is called when libcurl needs to read data during sending
803 * @param stream pointer where to write data
804 * @param size size of an individual element
805 * @param nmemb count of elements that can be written to the buffer
806 * @param ptr source pointer, passed to the libcurl handle
807 * @return bytes written to stream
809 static size_t send_read_callback(void *stream, size_t size, size_t nmemb, void *ptr)
811 struct Session * ses = ptr;
812 struct HTTP_Message * msg = ses->pending_outbound_msg;
817 if (( msg->pos < msg->len))
819 /* data fit in buffer */
820 if ((msg->len - msg->pos) <= (size * nmemb))
822 len = (msg->len - msg->pos);
823 memcpy(stream, &msg->buf[msg->pos], len);
830 memcpy(stream, &msg->buf[msg->pos], len);
835 /* no data to send */
844 * Callback method used with libcurl
845 * Method is called when libcurl needs to write data during sending
846 * @param stream pointer where to write data
847 * @param size size of an individual element
848 * @param nmemb count of elements that can be written to the buffer
849 * @param ptr destination pointer, passed to the libcurl handle
850 * @return bytes read from stream
852 static size_t send_write_callback( void *stream, size_t size, size_t nmemb, void *ptr)
856 if ((size * nmemb) < SIZE_MAX)
857 data = GNUNET_malloc(size*nmemb +1);
860 memcpy( data, stream, size*nmemb);
861 data[size*nmemb] = '\0';
864 return (size * nmemb);
869 * Function setting up file descriptors and scheduling task to run
870 * @param ses session to send data to
871 * @return bytes sent to peer
873 static size_t send_prepare(struct Session* ses );
876 * Function setting up curl handle and selecting message to send
877 * @param ses session to send data to
878 * @return bytes sent to peer
880 static ssize_t send_select_init (struct Session* ses )
884 struct HTTP_Message * msg;
886 if ( NULL == ses->curl_handle)
887 ses->curl_handle = curl_easy_init();
888 if( NULL == ses->curl_handle)
890 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Getting cURL handle failed\n");
893 msg = ses->pending_outbound_msg;
898 curl_easy_setopt(ses->curl_handle, CURLOPT_VERBOSE, 1L);
900 curl_easy_setopt(ses->curl_handle, CURLOPT_URL, msg->dest_url);
901 curl_easy_setopt(ses->curl_handle, CURLOPT_PUT, 1L);
902 curl_easy_setopt(ses->curl_handle, CURLOPT_HEADERFUNCTION, &header_function);
903 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEHEADER, ses);
904 curl_easy_setopt(ses->curl_handle, CURLOPT_READFUNCTION, send_read_callback);
905 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
906 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEFUNCTION, send_write_callback);
907 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
908 curl_easy_setopt(ses->curl_handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t) msg->len);
909 curl_easy_setopt(ses->curl_handle, CURLOPT_TIMEOUT, (long) (timeout.value / 1000 ));
910 GNUNET_assert (CURLE_OK == curl_easy_setopt(ses->curl_handle, CURLOPT_PRIVATE, ses));
911 curl_easy_setopt(ses->curl_handle, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
912 curl_easy_setopt(ses->curl_handle, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
914 mret = curl_multi_add_handle(multi_handle, ses->curl_handle);
915 if (mret != CURLM_OK)
917 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
918 _("%s failed at %s:%d: `%s'\n"),
919 "curl_multi_add_handle", __FILE__, __LINE__,
920 curl_multi_strerror (mret));
923 bytes_sent = send_prepare (ses );
927 static void send_execute (void *cls,
928 const struct GNUNET_SCHEDULER_TaskContext *tc)
930 static unsigned int handles_last_run;
935 struct Session * cs = NULL;
938 http_task_send = GNUNET_SCHEDULER_NO_TASK;
939 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
945 mret = curl_multi_perform (multi_handle, &running);
946 if (running < handles_last_run)
951 msg = curl_multi_info_read (multi_handle, &running);
952 GNUNET_break (msg != NULL);
955 /* get session for affected curl handle */
956 GNUNET_assert ( msg->easy_handle != NULL );
957 curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &cs);
959 //cs = find_session_by_curlhandle (msg->easy_handle);
960 GNUNET_assert ( cs != NULL );
961 GNUNET_assert ( cs->pending_outbound_msg != NULL );
966 if ( (msg->data.result != CURLE_OK) &&
967 (msg->data.result != CURLE_GOT_NOTHING) )
969 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
970 _("%s failed for `%s' at %s:%d: `%s'\n"),
971 "curl_multi_perform",
972 GNUNET_i2s(&cs->partner),
975 curl_easy_strerror (msg->data.result));
976 /* sending msg failed*/
977 if (( NULL != cs->pending_outbound_msg) && ( NULL != cs->pending_outbound_msg->transmit_cont))
978 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
982 info_res = curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result);
983 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
984 "Send to peer `%s' completed with code %u %u\n", GNUNET_i2s(&cs->partner), http_result, cs->pending_outbound_msg->http_result_code);
986 curl_easy_cleanup(cs->curl_handle);
987 cs->curl_handle=NULL;
989 /* Calling transmit continuation */
990 if (( NULL != cs->pending_outbound_msg) && (NULL != cs->pending_outbound_msg->transmit_cont))
992 /* HTTP 1xx : Last message before here was informational */
993 if ((cs->pending_outbound_msg->http_result_code >=100) && (cs->pending_outbound_msg->http_result_code < 200))
994 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->partner,GNUNET_OK);
995 /* HTTP 2xx: successful operations */
996 if ((cs->pending_outbound_msg->http_result_code >=200) && (cs->pending_outbound_msg->http_result_code < 300))
997 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->partner,GNUNET_OK);
998 /* HTTP 3xx..5xx: error */
999 if ((cs->pending_outbound_msg->http_result_code >=300) && (cs->pending_outbound_msg->http_result_code < 600))
1000 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
1003 if (GNUNET_OK != remove_http_message(cs, cs->pending_outbound_msg))
1004 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Message could not be removed from session `%s'", GNUNET_i2s(&cs->partner));
1005 /* send pending messages */
1006 if (cs->pending_outbound_msg != NULL)
1008 send_select_init (cs);
1016 while ( (running > 0) );
1018 handles_last_run = running;
1020 while (mret == CURLM_CALL_MULTI_PERFORM);
1026 * Function setting up file descriptors and scheduling task to run
1027 * @param ses session to send data to
1028 * @return bytes sent to peer
1030 static size_t send_prepare(struct Session* ses )
1036 struct GNUNET_NETWORK_FDSet *grs;
1037 struct GNUNET_NETWORK_FDSet *gws;
1045 mret = curl_multi_fdset (multi_handle, &rs, &ws, &es, &max);
1046 if (mret != CURLM_OK)
1048 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1049 _("%s failed at %s:%d: `%s'\n"),
1050 "curl_multi_fdset", __FILE__, __LINE__,
1051 curl_multi_strerror (mret));
1054 mret = curl_multi_timeout (multi_handle, &to);
1055 if (mret != CURLM_OK)
1057 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1058 _("%s failed at %s:%d: `%s'\n"),
1059 "curl_multi_timeout", __FILE__, __LINE__,
1060 curl_multi_strerror (mret));
1064 grs = GNUNET_NETWORK_fdset_create ();
1065 gws = GNUNET_NETWORK_fdset_create ();
1066 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
1067 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
1068 http_task_send = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1069 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1070 GNUNET_SCHEDULER_NO_TASK,
1071 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),
1076 GNUNET_NETWORK_fdset_destroy (gws);
1077 GNUNET_NETWORK_fdset_destroy (grs);
1079 /* FIXME: return bytes REALLY sent */
1084 * Function that can be used by the transport service to transmit
1085 * a message using the plugin.
1087 * @param cls closure
1088 * @param target who should receive this message
1089 * @param priority how important is the message
1090 * @param msgbuf the message to transmit
1091 * @param msgbuf_size number of bytes in 'msgbuf'
1092 * @param to when should we time out
1093 * @param session which session must be used (or NULL for "any")
1094 * @param addr the address to use (can be NULL if the plugin
1095 * is "on its own" (i.e. re-use existing TCP connection))
1096 * @param addrlen length of the address in bytes
1097 * @param force_address GNUNET_YES if the plugin MUST use the given address,
1098 * otherwise the plugin may use other addresses or
1099 * existing connections (if available)
1100 * @param cont continuation to call once the message has
1101 * been transmitted (or if the transport is ready
1102 * for the next transmission call; or if the
1103 * peer disconnected...)
1104 * @param cont_cls closure for cont
1105 * @return number of bytes used (on the physical network, with overheads);
1106 * -1 on hard errors (i.e. address invalid); 0 is a legal value
1107 * and does NOT mean that the message was not transmitted (DV)
1110 http_plugin_send (void *cls,
1111 const struct GNUNET_PeerIdentity *target,
1114 unsigned int priority,
1115 struct GNUNET_TIME_Relative to,
1116 struct Session *session,
1120 GNUNET_TRANSPORT_TransmitContinuation cont,
1126 struct HTTP_Message * msg;
1127 struct HTTP_Message * tmp;
1133 /* find session for peer */
1134 cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &target->hashPubKey);
1135 /* if (NULL != ses ) GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Existing session for peer `%s' found\n", GNUNET_i2s(target));*/
1138 /* create new session object */
1140 cs = create_session((char *) addr, addrlen, NULL, 0, target);
1141 cs->is_active = GNUNET_YES;
1143 /* Insert session into linked list */
1144 res = GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
1145 &cs->partner.hashPubKey,
1147 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1149 if (res == GNUNET_OK)
1150 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1151 "New Session `%s' inserted\n", GNUNET_i2s(target));
1154 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1155 "Session `%s' found\n", GNUNET_i2s(target));
1157 GNUNET_assert (addr!=NULL);
1159 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: len `%u'\n",addrlen);
1160 if (cs->addr_out != NULL) GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"have addr out!!!!'\n");
1161 if (addrlen == (sizeof (struct IPv4HttpAddress)))
1163 address = GNUNET_malloc(INET_ADDRSTRLEN + 1);
1164 inet_ntop(AF_INET, &((struct IPv4HttpAddress *) addr)->ipv4_addr,address,INET_ADDRSTRLEN);
1165 port = ntohs(((struct IPv4HttpAddress *) addr)->u_port);
1166 GNUNET_asprintf (&url,
1170 (char *) (&my_ascii_hash_ident));
1171 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: address `%s'\n",address);
1172 GNUNET_free(address);
1174 else if (addrlen == (sizeof (struct IPv6HttpAddress)))
1176 address = GNUNET_malloc(INET6_ADDRSTRLEN + 1);
1177 inet_ntop(AF_INET6, &((struct IPv6HttpAddress *) addr)->ipv6_addr,address,INET6_ADDRSTRLEN);
1178 port = ntohs(((struct IPv6HttpAddress *) addr)->u6_port);
1179 GNUNET_asprintf(&url,
1181 address,port,(char *) (&my_ascii_hash_ident));
1182 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: address `%s'\n",address);
1183 GNUNET_free(address);
1186 /* setting up message */
1187 msg = GNUNET_malloc (sizeof (struct HTTP_Message));
1189 msg->len = msgbuf_size;
1191 msg->buf = GNUNET_malloc (msgbuf_size);
1192 msg->dest_url = url;
1193 msg->transmit_cont = cont;
1194 msg->transmit_cont_cls = cont_cls;
1195 memcpy (msg->buf,msgbuf, msgbuf_size);
1196 /* insert created message in list of pending messages */
1197 if (cs->pending_outbound_msg == NULL)
1199 cs->pending_outbound_msg = msg;
1201 tmp = cs->pending_outbound_msg;
1202 while ( NULL != tmp->next)
1210 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: sending %u bytes of data from peer `%4.4s' to peer `%s'\n",msgbuf_size,(char *) &my_ascii_hash_ident,GNUNET_i2s(target));
1211 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: url `%s'\n",url);
1212 if (msg == cs->pending_outbound_msg)
1214 bytes_sent = send_select_init (cs);
1223 * Function that can be used to force the plugin to disconnect
1224 * from the given peer and cancel all previous transmissions
1225 * (and their continuationc).
1227 * @param cls closure
1228 * @param target peer from which to disconnect
1231 http_plugin_disconnect (void *cls,
1232 const struct GNUNET_PeerIdentity *target)
1234 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: http_plugin_disconnect\n");
1235 // struct Plugin *plugin = cls;
1241 * Convert the transports address to a nice, human-readable
1244 * @param cls closure
1245 * @param type name of the transport that generated the address
1246 * @param addr one of the addresses of the host, NULL for the last address
1247 * the specific address format depends on the transport
1248 * @param addrlen length of the address
1249 * @param numeric should (IP) addresses be displayed in numeric form?
1250 * @param timeout after how long should we give up?
1251 * @param asc function to call on each string
1252 * @param asc_cls closure for asc
1255 http_plugin_address_pretty_printer (void *cls,
1260 struct GNUNET_TIME_Relative timeout,
1261 GNUNET_TRANSPORT_AddressStringCallback
1264 const struct IPv4HttpAddress *t4;
1265 const struct IPv6HttpAddress *t6;
1266 struct sockaddr_in a4;
1267 struct sockaddr_in6 a6;
1273 if (addrlen == sizeof (struct IPv6HttpAddress))
1275 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1277 a6.sin6_addr = t6->ipv6_addr;
1278 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1279 port = ntohs(t6->u6_port);
1281 else if (addrlen == sizeof (struct IPv4HttpAddress))
1283 address = GNUNET_malloc (INET_ADDRSTRLEN);
1285 a4.sin_addr.s_addr = t4->ipv4_addr;
1286 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1287 port = ntohs(t4->u_port);
1291 /* invalid address */
1292 GNUNET_break_op (0);
1293 asc (asc_cls, NULL);
1296 res = GNUNET_asprintf(&ret,"http://%s:%u/",address,port);
1297 GNUNET_free (address);
1298 GNUNET_assert(res != 0);
1306 * Another peer has suggested an address for this
1307 * peer and transport plugin. Check that this could be a valid
1308 * address. If so, consider adding it to the list
1311 * @param cls closure
1312 * @param addr pointer to the address
1313 * @param addrlen length of addr
1314 * @return GNUNET_OK if this is a plausible address for this peer
1318 http_plugin_address_suggested (void *cls,
1319 void *addr, size_t addrlen)
1321 struct IPv4HttpAddress *v4;
1322 struct IPv6HttpAddress *v6;
1325 if ((addrlen != sizeof (struct IPv4HttpAddress)) &&
1326 (addrlen != sizeof (struct IPv6HttpAddress)))
1328 return GNUNET_SYSERR;
1330 if (addrlen == sizeof (struct IPv4HttpAddress))
1332 v4 = (struct IPv4HttpAddress *) addr;
1333 if (INADDR_LOOPBACK == ntohl(v4->ipv4_addr))
1335 return GNUNET_SYSERR;
1337 port = ntohs (v4->u_port);
1338 if (port != plugin->port_inbound)
1340 return GNUNET_SYSERR;
1345 v6 = (struct IPv6HttpAddress *) addr;
1346 if (IN6_IS_ADDR_LINKLOCAL (&v6->ipv6_addr))
1348 return GNUNET_SYSERR;
1350 port = ntohs (v6->u6_port);
1351 if (port != plugin->port_inbound)
1353 return GNUNET_SYSERR;
1363 * Function called for a quick conversion of the binary address to
1364 * a numeric address. Note that the caller must not free the
1365 * address and that the next call to this function is allowed
1366 * to override the address again.
1368 * @param cls closure
1369 * @param addr binary address
1370 * @param addrlen length of the address
1371 * @return string representing the same address
1374 http_plugin_address_to_string (void *cls,
1378 const struct IPv4HttpAddress *t4;
1379 const struct IPv6HttpAddress *t6;
1380 struct sockaddr_in a4;
1381 struct sockaddr_in6 a6;
1387 if (addrlen == sizeof (struct IPv6HttpAddress))
1389 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1391 a6.sin6_addr = t6->ipv6_addr;
1392 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1393 port = ntohs(t6->u6_port);
1395 else if (addrlen == sizeof (struct IPv4HttpAddress))
1397 address = GNUNET_malloc (INET_ADDRSTRLEN);
1399 a4.sin_addr.s_addr = t4->ipv4_addr;
1400 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1401 port = ntohs(t4->u_port);
1405 /* invalid address */
1408 res = GNUNET_asprintf(&ret,"%s:%u",address,port);
1409 GNUNET_free (address);
1410 GNUNET_assert(res != 0);
1415 * Add the IP of our network interface to the list of
1416 * our external IP addresses.
1418 * @param cls the 'struct Plugin*'
1419 * @param name name of the interface
1420 * @param isDefault do we think this may be our default interface
1421 * @param addr address of the interface
1422 * @param addrlen number of bytes in addr
1423 * @return GNUNET_OK to continue iterating
1426 process_interfaces (void *cls,
1429 const struct sockaddr *addr, socklen_t addrlen)
1431 struct IPv4HttpAddress t4;
1432 struct IPv6HttpAddress t6;
1437 af = addr->sa_family;
1440 if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
1442 /* skip loopback addresses */
1445 t4.ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
1446 t4.u_port = htons (plugin->port_inbound);
1450 else if (af == AF_INET6)
1452 if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
1454 /* skip link local addresses */
1457 if (IN6_IS_ADDR_LOOPBACK (&((struct sockaddr_in6 *) addr)->sin6_addr))
1459 /* skip loopback addresses */
1462 memcpy (&t6.ipv6_addr,
1463 &((struct sockaddr_in6 *) addr)->sin6_addr,
1464 sizeof (struct in6_addr));
1465 t6.u6_port = htons (plugin->port_inbound);
1474 plugin->env->notify_address(plugin->env->cls,"http",arg, args, GNUNET_TIME_UNIT_FOREVER_REL);
1478 int hashMapFreeIterator (void *cls, const GNUNET_HashCode *key, void *value)
1480 struct Session * cs = value;
1482 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing session for peer `%s'\n",GNUNET_i2s(&cs->partner));
1484 /* freeing messages */
1485 struct HTTP_Message *cur;
1486 struct HTTP_Message *tmp;
1487 cur = cs->pending_outbound_msg;
1492 GNUNET_free_non_null(cur->dest_url);
1493 GNUNET_free_non_null (cur->buf);
1497 GNUNET_SERVER_mst_destroy (cs->msgtok);
1498 GNUNET_free (cs->pending_inbound_msg->buf);
1499 GNUNET_free (cs->pending_inbound_msg);
1500 GNUNET_free_non_null (cs->addr_in);
1501 GNUNET_free_non_null (cs->addr_out);
1508 * Exit point from the plugin.
1511 libgnunet_plugin_transport_http_done (void *cls)
1513 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
1514 struct Plugin *plugin = api->cls;
1517 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unloading http plugin...\n");
1519 if ( http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1521 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v4);
1522 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
1525 if ( http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1527 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v6);
1528 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1531 if ( http_task_send != GNUNET_SCHEDULER_NO_TASK)
1533 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_send);
1534 http_task_send = GNUNET_SCHEDULER_NO_TASK;
1537 if (http_daemon_v4 != NULL)
1539 MHD_stop_daemon (http_daemon_v4);
1540 http_daemon_v4 = NULL;
1542 if (http_daemon_v6 != NULL)
1544 MHD_stop_daemon (http_daemon_v6);
1545 http_daemon_v6 = NULL;
1548 /* free all sessions */
1549 GNUNET_CONTAINER_multihashmap_iterate (plugin->sessions,
1550 &hashMapFreeIterator,
1553 GNUNET_CONTAINER_multihashmap_destroy (plugin->sessions);
1555 mret = curl_multi_cleanup(multi_handle);
1556 if ( CURLM_OK != mret)
1557 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed");
1559 GNUNET_free (plugin);
1566 * Entry point for the plugin.
1569 libgnunet_plugin_transport_http_init (void *cls)
1571 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
1572 struct GNUNET_TRANSPORT_PluginFunctions *api;
1573 unsigned int timeout;
1574 struct GNUNET_TIME_Relative gn_timeout;
1575 long long unsigned int port;
1577 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting http plugin...\n");
1579 plugin = GNUNET_malloc (sizeof (struct Plugin));
1581 plugin->sessions = NULL;
1582 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
1584 api->send = &http_plugin_send;
1585 api->disconnect = &http_plugin_disconnect;
1586 api->address_pretty_printer = &http_plugin_address_pretty_printer;
1587 api->check_address = &http_plugin_address_suggested;
1588 api->address_to_string = &http_plugin_address_to_string;
1590 /* Hashing our identity to use it in URLs */
1591 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &my_ascii_hash_ident);
1593 /* Reading port number from config file */
1595 GNUNET_CONFIGURATION_get_value_number (env->cfg,
1601 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1604 ("Require valid port number for transport plugin `%s' in configuration!\n"),
1606 libgnunet_plugin_transport_http_done (api);
1609 GNUNET_assert ((port > 0) && (port <= 65535));
1610 plugin->port_inbound = port;
1611 gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
1612 timeout = ( gn_timeout.value / 1000);
1613 if ((http_daemon_v4 == NULL) && (http_daemon_v6 == NULL) && (port != 0))
1615 http_daemon_v6 = MHD_start_daemon (MHD_USE_IPv6,
1617 &acceptPolicyCallback,
1618 NULL , &accessHandlerCallback, NULL,
1619 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1620 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1621 MHD_OPTION_CONNECTION_TIMEOUT, timeout,
1622 /* FIXME: set correct limit */
1623 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1624 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1626 http_daemon_v4 = MHD_start_daemon (MHD_NO_FLAG,
1628 &acceptPolicyCallback,
1629 NULL , &accessHandlerCallback, NULL,
1630 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1631 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1632 MHD_OPTION_CONNECTION_TIMEOUT, timeout,
1633 /* FIXME: set correct limit */
1634 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1635 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1638 if (http_daemon_v4 != NULL)
1639 http_task_v4 = http_daemon_prepare (http_daemon_v4);
1640 if (http_daemon_v6 != NULL)
1641 http_task_v6 = http_daemon_prepare (http_daemon_v6);
1643 if (http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1644 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 on port %u\n",port);
1645 else if (http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1646 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 on port %u\n",port);
1649 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No MHD was started, transport plugin not functional!\n");
1650 libgnunet_plugin_transport_http_done (api);
1654 /* Initializing cURL */
1655 multi_handle = curl_multi_init();
1656 if ( NULL == multi_handle )
1658 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1660 _("Could not initialize curl multi handle, failed to start http plugin!\n"),
1662 libgnunet_plugin_transport_http_done (api);
1666 plugin->sessions = GNUNET_CONTAINER_multihashmap_create (10);
1667 GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
1672 /* end of plugin_transport_template.c */