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 "plugin_transport.h"
38 #include "gnunet_os_lib.h"
39 #include "microhttpd.h"
40 #include <curl/curl.h>
43 #define DEBUG_CURL GNUNET_YES
44 #define DEBUG_HTTP GNUNET_NO
47 * Text of the response sent back after the last bytes of a PUT
48 * request have been received (just to formally obey the HTTP
51 #define HTTP_PUT_RESPONSE "Thank you!"
54 * After how long do we expire an address that we
55 * learned from another peer if it is not reconfirmed
58 #define LEARNED_ADDRESS_EXPIRATION GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 6)
61 * Page returned if request invalid
63 #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>"
66 * Timeout for a http connect
68 #define HTTP_CONNECT_TIMEOUT 30
71 * Timeout for a http connect
73 #define HTTP_MESSAGE_INITIAL_BUFFERSIZE GNUNET_SERVER_MAX_MESSAGE_SIZE
77 * Encapsulation of all of the state of the plugin.
82 * Network format for IPv4 addresses.
84 struct IPv4HttpAddress
87 * IPv4 address, in network byte order.
92 * Port number, in network byte order.
100 * Network format for IPv6 addresses.
102 struct IPv6HttpAddress
107 struct in6_addr ipv6_addr;
110 * Port number, in network byte order.
119 * Message to send using http
124 * Next field for linked list
126 struct HTTP_Message * next;
129 * buffer containing data to send
134 * amount of data already sent
139 * amount of data to 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;
157 unsigned int http_result_code;
162 * Session handle for connections.
168 * Stored in a linked list.
170 struct Session *next;
173 * Pointer to the global plugin struct.
175 struct Plugin *plugin;
178 * To whom are we talking to (set to our identity
179 * if we are still waiting for the welcome message)
181 struct GNUNET_PeerIdentity partner;
184 * Sender's ip address to distinguish between incoming connections
186 struct sockaddr_in * addr_inbound;
189 * Sender's ip address to distinguish between incoming connections
191 char * addr_inbound_str;
195 * Sender's ip address recieved by transport
197 struct sockaddr_in * addr_outbound;
200 * Did we initiate the connection (GNUNET_YES) or the other peer (GNUNET_NO)?
202 unsigned int is_client;
205 * Is the connection active (GNUNET_YES) or terminated (GNUNET_NO)?
207 unsigned int is_active;
210 * At what time did we reset last_received last?
212 struct GNUNET_TIME_Absolute last_quota_update;
215 * How many bytes have we received since the "last_quota_update"
218 uint64_t last_received;
221 * Number of bytes per ms that this peer is allowed
227 * Is there a HTTP/PUT in progress?
229 unsigned int is_put_in_progress;
232 * Is there a HTTP/PUT in progress?
234 unsigned int is_bad_request;
239 struct GNUNET_CRYPTO_HashAsciiEncoded hash;
241 struct HTTP_Message * pending_outbound_msg;;
243 struct HTTP_Message * pending_inbound_msg;
247 struct GNUNET_SERVER_MessageStreamTokenizer * msgtok;
251 * Encapsulation of all of the state of the plugin.
258 struct GNUNET_TRANSPORT_PluginEnvironment *env;
260 unsigned int port_inbound;
263 * List of open sessions.
265 struct Session *sessions;
268 * Number of active sessions
271 unsigned int session_count;
275 * Daemon for listening for new IPv4 connections.
277 static struct MHD_Daemon *http_daemon_v4;
280 * Daemon for listening for new IPv6connections.
282 static struct MHD_Daemon *http_daemon_v6;
285 * Our primary task for http daemon handling IPv4 connections
287 static GNUNET_SCHEDULER_TaskIdentifier http_task_v4;
290 * Our primary task for http daemon handling IPv6 connections
292 static GNUNET_SCHEDULER_TaskIdentifier http_task_v6;
296 * The task sending data
298 static GNUNET_SCHEDULER_TaskIdentifier http_task_send;
302 * Information about this plugin
304 static struct Plugin *plugin;
309 static CURLM *multi_handle;
312 * Our ASCII encoded, hashed peer identity
313 * This string is used to distinguish between connections and is added to the urls
315 static struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
317 // MW: please document (which timeout is this!?)
318 static struct GNUNET_TIME_Relative timeout;
321 * Finds a http session in our linked list using peer identity as a key
322 * @param peer peeridentity
323 * @return http session corresponding to peer identity
325 static struct Session * find_session_by_pi( const struct GNUNET_PeerIdentity *peer )
327 struct Session * cur;
328 GNUNET_HashCode hc_peer;
329 GNUNET_HashCode hc_current;
331 cur = plugin->sessions;
332 hc_peer = peer->hashPubKey;
335 hc_current = cur->partner.hashPubKey;
336 if ( 0 == GNUNET_CRYPTO_hash_cmp( &hc_peer, &hc_current))
338 cur = plugin->sessions->next;
344 * Finds a http session in our linked list using libcurl handle as a key
345 * Needed when sending data with libcurl to differentiate between sessions
346 * @param handle peeridentity
347 * @return http session corresponding to peer identity
349 static struct Session * find_session_by_curlhandle( CURL* handle )
351 struct Session * cur;
353 cur = plugin->sessions;
356 if ( handle == cur->curl_handle )
358 cur = plugin->sessions->next;
364 * Create a new session
366 * @param addr_in address the peer is using inbound
367 * @param addr_out address the peer is using outbound
368 * @param peer identity
369 * @return created session object
371 static struct Session * create_session (struct sockaddr_in *addr_in, struct sockaddr_in *addr_out, const struct GNUNET_PeerIdentity *peer)
373 struct Session * ses = GNUNET_malloc ( sizeof( struct Session) );
375 ses->addr_inbound = GNUNET_malloc ( sizeof (struct sockaddr_in) );
376 ses->addr_outbound = GNUNET_malloc ( sizeof (struct sockaddr_in) );
377 ses->plugin = plugin;
378 if ((NULL != addr_in) && (( AF_INET == addr_in->sin_family) || ( AF_INET6 == addr_in->sin_family)))
380 memcpy(ses->addr_inbound, addr_in, sizeof (struct sockaddr_in));
382 if ((NULL != addr_out) && (( AF_INET == addr_out->sin_family) || ( AF_INET6 == addr_out->sin_family)))
384 memcpy(ses->addr_outbound, addr_out, sizeof (struct sockaddr_in));
386 memcpy(&ses->partner, peer, sizeof (struct GNUNET_PeerIdentity));
387 GNUNET_CRYPTO_hash_to_enc(&ses->partner.hashPubKey,&(ses->hash));
388 ses->is_active = GNUNET_NO;
389 ses->addr_inbound_str = NULL;
390 ses->pending_inbound_msg = GNUNET_malloc( sizeof (struct HTTP_Message));
391 ses->pending_inbound_msg->buf = GNUNET_malloc(GNUNET_SERVER_MAX_MESSAGE_SIZE);
392 ses->pending_inbound_msg->len = GNUNET_SERVER_MAX_MESSAGE_SIZE;
393 ses->pending_inbound_msg->pos = 0;
399 * Callback called by MHD when a connection is terminated
401 static void requestCompletedCallback (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
405 cs = *httpSessionCache;
408 /*GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection from peer `%s' was terminated\n",GNUNET_i2s(&cs->partner));*/
409 /* session set to inactive */
410 cs->is_active = GNUNET_NO;
411 cs->is_put_in_progress = GNUNET_NO;
417 static void messageTokenizerCallback (void *cls,
420 GNUNET_MessageHeader *
424 GNUNET_assert(cls != NULL);
425 cs = (struct Session *) cls;
426 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Recieved message with type %u and size %u from `%s'\n",message->size,message->type, GNUNET_i2s(&(cs->partner)));
427 plugin->env->receive(plugin->env->cls, &(cs->partner), message, 1, NULL , cs->addr_inbound_str, strlen(cs->addr_inbound_str));
431 * Check if we are allowed to connect to the given IP.
434 acceptPolicyCallback (void *cls,
435 const struct sockaddr *addr, socklen_t addr_len)
437 /* Every connection is accepted, nothing more to do here */
442 * Process GET or PUT request received via MHD. For
443 * GET, queue response that will send back our pending
444 * messages. For PUT, process incoming data and send
445 * to GNUnet core. In either case, check if a session
446 * already exists and create a new one if not.
449 accessHandlerCallback (void *cls,
450 struct MHD_Connection *session,
454 const char *upload_data,
455 size_t * upload_data_size, void **httpSessionCache)
457 struct MHD_Response *response;
459 struct Session * cs_temp;
460 const union MHD_ConnectionInfo * conn_info;
461 struct sockaddr_in *addrin;
462 struct sockaddr_in6 *addrin6;
463 char address[INET6_ADDRSTRLEN+14];
464 struct GNUNET_PeerIdentity pi_in;
466 struct GNUNET_MessageHeader *cur_msg;
467 int send_error_to_client;
471 send_error_to_client = GNUNET_NO;
473 if ( NULL == *httpSessionCache)
475 /* check url for peer identity */
476 res = GNUNET_CRYPTO_hash_from_string ( &url[1], &(pi_in.hashPubKey));
477 if ( GNUNET_SYSERR == res )
479 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
480 res = MHD_queue_response (session, MHD_HTTP_NOT_FOUND, response);
481 MHD_destroy_response (response);
483 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");
485 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
489 conn_info = MHD_get_connection_info(session, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
490 /* Incoming IPv4 connection */
491 if ( AF_INET == conn_info->client_addr->sin_family)
493 addrin = conn_info->client_addr;
494 inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
496 /* Incoming IPv6 connection */
497 if ( AF_INET6 == conn_info->client_addr->sin_family)
499 addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
500 inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
502 /* find existing session for address */
504 if (plugin->session_count > 0)
506 cs = plugin->sessions;
509 res = (0 == memcmp(&pi_in,&(cs->partner), sizeof (struct GNUNET_PeerIdentity))) ? GNUNET_YES : GNUNET_NO;
510 if ( GNUNET_YES == res)
515 /* no existing session, create a new one*/
518 /* create new session object */
519 cs = create_session(conn_info->client_addr, NULL, &pi_in);
521 /* Insert session into linked list */
522 if ( plugin->sessions == NULL)
524 plugin->sessions = cs;
525 plugin->session_count = 1;
527 cs_temp = plugin->sessions;
528 while ( cs_temp->next != NULL )
530 cs_temp = cs_temp->next;
535 plugin->session_count++;
537 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"New Session for peer `%s' inserted, count %u \n", GNUNET_i2s(&cs->partner), plugin->session_count);
540 /* Set closure and update current session*/
541 if (*httpSessionCache == NULL)
543 *httpSessionCache = cs;
544 /* Updating session */
545 memcpy(cs->addr_inbound,conn_info->client_addr, sizeof(struct sockaddr_in));
546 if (cs->addr_inbound_str != NULL)
547 GNUNET_free (cs->addr_inbound_str);
548 if ( AF_INET == cs->addr_inbound->sin_family)
550 GNUNET_asprintf(&cs->addr_inbound_str,"%s:%u",address,ntohs(cs->addr_inbound->sin_port));
553 if ( AF_INET6 == cs->addr_inbound->sin_family)
555 GNUNET_asprintf(&cs->addr_inbound_str,"[%s]:%u",address,ntohs(cs->addr_inbound->sin_port));
558 if (cs->msgtok==NULL)
559 cs->msgtok = GNUNET_SERVER_mst_create (GNUNET_SERVER_MAX_MESSAGE_SIZE, cs, &messageTokenizerCallback, cs);
561 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Daemon has new an incoming `%s' request from peer `%s' (`%s')\n",method, GNUNET_i2s(&cs->partner),cs->addr_inbound_str);
565 cs = *httpSessionCache;
567 /* Is it a PUT or a GET request */
568 if ( 0 == strcmp (MHD_HTTP_METHOD_PUT, method) )
571 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_NO))
573 if (cs->pending_inbound_msg->pos !=0 )
575 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
576 _("Incoming message from peer `%s', while existing message with %u bytes was not forwarded to transport'\n"),
577 GNUNET_i2s(&cs->partner), cs->pending_inbound_msg->pos);
578 cs->pending_inbound_msg->pos = 0;
581 cs->is_put_in_progress = GNUNET_YES;
582 cs->is_bad_request = GNUNET_NO;
583 cs->is_active = GNUNET_YES;
587 if ((*upload_data_size > 0) && (cs->is_bad_request != GNUNET_YES))
589 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))
591 /* copy uploaded data to buffer */
592 memcpy(&cs->pending_inbound_msg->buf[cs->pending_inbound_msg->pos],upload_data,*upload_data_size);
593 cs->pending_inbound_msg->pos += *upload_data_size;
594 *upload_data_size = 0;
599 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);
600 cs->is_bad_request = GNUNET_YES;
601 /* (*upload_data_size) bytes not processed */
606 if ((cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_YES))
608 *upload_data_size = 0;
609 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
610 res = MHD_queue_response (session, MHD_HTTP_REQUEST_ENTITY_TOO_LARGE, response);
613 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 413 Request Entity Too Large as PUT Response\n");
614 cs->is_bad_request = GNUNET_NO;
615 cs->is_put_in_progress =GNUNET_NO;
616 cs->pending_inbound_msg->pos = 0;
618 MHD_destroy_response (response);
622 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_NO))
624 send_error_to_client = GNUNET_YES;
626 if (cs->pending_inbound_msg->pos >= sizeof (struct GNUNET_MessageHeader))
628 cur_msg = (struct GNUNET_MessageHeader *) cs->pending_inbound_msg->buf;
629 res = GNUNET_SERVER_mst_receive(cs->msgtok,cs->pending_inbound_msg->buf,cs->pending_inbound_msg->pos, GNUNET_NO, GNUNET_NO);
630 if ((res != GNUNET_SYSERR) && (res != GNUNET_NO))
631 send_error_to_client = GNUNET_NO;
633 if (send_error_to_client == GNUNET_NO)
635 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
636 res = MHD_queue_response (session, MHD_HTTP_OK, response);
637 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 200 OK as PUT Response\n",HTTP_PUT_RESPONSE, strlen (HTTP_PUT_RESPONSE), res );
638 MHD_destroy_response (response);
642 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
643 res = MHD_queue_response (session, MHD_HTTP_BAD_REQUEST, response);
644 MHD_destroy_response (response);
645 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 400 BAD REQUEST as PUT Response\n");
647 cs->is_put_in_progress = GNUNET_NO;
648 cs->is_bad_request = GNUNET_NO;
649 cs->pending_inbound_msg->pos = 0;
653 if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
655 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Got GET Request\n");
656 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"URL: `%s'\n",url);
657 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
658 res = MHD_queue_response (session, MHD_HTTP_OK, response);
659 MHD_destroy_response (response);
667 * Call MHD to process pending requests and then go back
668 * and schedule the next run.
670 static void http_daemon_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
673 * Function that queries MHD's select sets and
674 * starts the task waiting for them.
676 static GNUNET_SCHEDULER_TaskIdentifier
677 http_daemon_prepare (struct MHD_Daemon *daemon_handle)
679 GNUNET_SCHEDULER_TaskIdentifier ret;
683 struct GNUNET_NETWORK_FDSet *wrs;
684 struct GNUNET_NETWORK_FDSet *wws;
685 struct GNUNET_NETWORK_FDSet *wes;
687 unsigned long long timeout;
689 struct GNUNET_TIME_Relative tv;
694 wrs = GNUNET_NETWORK_fdset_create ();
695 wes = GNUNET_NETWORK_fdset_create ();
696 wws = GNUNET_NETWORK_fdset_create ();
698 GNUNET_assert (MHD_YES ==
699 MHD_get_fdset (daemon_handle,
704 haveto = MHD_get_timeout (daemon_handle, &timeout);
705 if (haveto == MHD_YES)
706 tv.value = (uint64_t) timeout;
708 tv = GNUNET_TIME_UNIT_FOREVER_REL;
709 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
710 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
711 GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
712 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
713 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
714 GNUNET_SCHEDULER_NO_TASK,
720 GNUNET_NETWORK_fdset_destroy (wrs);
721 GNUNET_NETWORK_fdset_destroy (wws);
722 GNUNET_NETWORK_fdset_destroy (wes);
727 * Call MHD to process pending requests and then go back
728 * and schedule the next run.
730 static void http_daemon_run (void *cls,
731 const struct GNUNET_SCHEDULER_TaskContext *tc)
733 struct MHD_Daemon *daemon_handle = cls;
735 if (daemon_handle == http_daemon_v4)
736 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
738 if (daemon_handle == http_daemon_v6)
739 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
741 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
744 GNUNET_assert (MHD_YES == MHD_run (daemon_handle));
745 if (daemon_handle == http_daemon_v4)
746 http_task_v4 = http_daemon_prepare (daemon_handle);
747 if (daemon_handle == http_daemon_v6)
748 http_task_v6 = http_daemon_prepare (daemon_handle);
753 * Removes a message from the linked list of messages
754 * @param ses session to remove message from
755 * @param msg message to remove
756 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
759 static int remove_http_message(struct Session * ses, struct HTTP_Message * msg)
761 struct HTTP_Message * cur;
762 struct HTTP_Message * next;
764 cur = ses->pending_outbound_msg;
768 return GNUNET_SYSERR;
772 ses->pending_outbound_msg = cur->next;
773 GNUNET_free (cur->buf);
774 GNUNET_free (cur->dest_url);
780 while (cur->next!=msg)
782 if (cur->next != NULL)
785 return GNUNET_SYSERR;
788 cur->next = cur->next->next;
789 GNUNET_free (cur->next->buf);
790 GNUNET_free (cur->next->dest_url);
791 GNUNET_free (cur->next);
797 static size_t header_function( void *ptr, size_t size, size_t nmemb, void *stream)
800 size_t len = size * nmemb;
801 struct Session * ses = stream;
804 if ((size * nmemb) < SIZE_MAX)
805 tmp = GNUNET_malloc (len+1);
807 if ((tmp != NULL) && (len > 0))
812 if (tmp[len-2] == 13)
816 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s'\n",tmp);
818 if (0==strcmp (tmp,"HTTP/1.1 100 Continue"))
820 ses->pending_outbound_msg->http_result_code=100;
822 if (0==strcmp (tmp,"HTTP/1.1 200 OK"))
824 ses->pending_outbound_msg->http_result_code=200;
826 if (0==strcmp (tmp,"HTTP/1.1 400 Bad Request"))
828 ses->pending_outbound_msg->http_result_code=400;
830 if (0==strcmp (tmp,"HTTP/1.1 404 Not Found"))
832 ses->pending_outbound_msg->http_result_code=404;
834 if (0==strcmp (tmp,"HTTP/1.1 413 Request Entity Too Large"))
836 ses->pending_outbound_msg->http_result_code=413;
846 * Callback method used with libcurl
847 * Method is called when libcurl needs to read data during sending
848 * @param stream pointer where to write data
849 * @param size size of an individual element
850 * @param nmemb count of elements that can be written to the buffer
851 * @param ptr source pointer, passed to the libcurl handle
852 * @return bytes written to stream
854 static size_t send_read_callback(void *stream, size_t size, size_t nmemb, void *ptr)
856 struct Session * ses = ptr;
857 struct HTTP_Message * msg = ses->pending_outbound_msg;
862 if (( msg->pos < msg->len))
864 /* data fit in buffer */
865 if ((msg->len - msg->pos) <= (size * nmemb))
867 len = (msg->len - msg->pos);
868 memcpy(stream, &msg->buf[msg->pos], len);
875 memcpy(stream, &msg->buf[msg->pos], len);
880 /* no data to send */
889 * Callback method used with libcurl
890 * Method is called when libcurl needs to write data during sending
891 * @param stream pointer where to write data
892 * @param size size of an individual element
893 * @param nmemb count of elements that can be written to the buffer
894 * @param ptr destination pointer, passed to the libcurl handle
895 * @return bytes read from stream
897 static size_t send_write_callback( void *stream, size_t size, size_t nmemb, void *ptr)
901 if ((size * nmemb) < SIZE_MAX)
902 data = GNUNET_malloc(size*nmemb +1);
905 memcpy( data, stream, size*nmemb);
906 data[size*nmemb] = '\0';
909 return (size * nmemb);
914 * Function setting up file descriptors and scheduling task to run
915 * @param ses session to send data to
916 * @return bytes sent to peer
918 static size_t send_prepare(struct Session* ses );
921 * Function setting up curl handle and selecting message to send
922 * @param ses session to send data to
923 * @return bytes sent to peer
925 static ssize_t send_select_init (struct Session* ses )
929 struct HTTP_Message * msg;
931 if ( NULL == ses->curl_handle)
932 ses->curl_handle = curl_easy_init();
933 if( NULL == ses->curl_handle)
935 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Getting cURL handle failed\n");
938 msg = ses->pending_outbound_msg;
943 curl_easy_setopt(ses->curl_handle, CURLOPT_VERBOSE, 1L);
945 curl_easy_setopt(ses->curl_handle, CURLOPT_URL, msg->dest_url);
946 curl_easy_setopt(ses->curl_handle, CURLOPT_PUT, 1L);
947 curl_easy_setopt(ses->curl_handle, CURLOPT_HEADERFUNCTION, &header_function);
948 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEHEADER, ses);
949 curl_easy_setopt(ses->curl_handle, CURLOPT_READFUNCTION, send_read_callback);
950 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
951 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEFUNCTION, send_write_callback);
952 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
953 curl_easy_setopt(ses->curl_handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t) msg->len);
954 curl_easy_setopt(ses->curl_handle, CURLOPT_TIMEOUT, (long) (timeout.value / 1000 ));
955 curl_easy_setopt(ses->curl_handle, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
956 curl_easy_setopt(ses->curl_handle, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
958 mret = curl_multi_add_handle(multi_handle, ses->curl_handle);
959 if (mret != CURLM_OK)
961 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
962 _("%s failed at %s:%d: `%s'\n"),
963 "curl_multi_add_handle", __FILE__, __LINE__,
964 curl_multi_strerror (mret));
967 bytes_sent = send_prepare (ses );
971 static void send_execute (void *cls,
972 const struct GNUNET_SCHEDULER_TaskContext *tc)
974 static unsigned int handles_last_run;
978 struct Session * cs = NULL;
980 http_task_send = GNUNET_SCHEDULER_NO_TASK;
981 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
987 mret = curl_multi_perform (multi_handle, &running);
988 if (running < handles_last_run)
993 msg = curl_multi_info_read (multi_handle, &running);
994 GNUNET_break (msg != NULL);
997 /* get session for affected curl handle */
998 GNUNET_assert ( msg->easy_handle != NULL );
999 cs = find_session_by_curlhandle (msg->easy_handle);
1000 GNUNET_assert ( cs != NULL );
1001 GNUNET_assert ( cs->pending_outbound_msg != NULL );
1006 if ( (msg->data.result != CURLE_OK) &&
1007 (msg->data.result != CURLE_GOT_NOTHING) )
1009 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
1010 _("%s failed for `%s' at %s:%d: `%s'\n"),
1011 "curl_multi_perform",
1012 GNUNET_i2s(&cs->partner),
1015 curl_easy_strerror (msg->data.result));
1016 /* sending msg failed*/
1017 if (( NULL != cs->pending_outbound_msg) && ( NULL != cs->pending_outbound_msg->transmit_cont))
1018 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
1023 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1024 "Send to peer `%s' completed with code %u\n", GNUNET_i2s(&cs->partner),cs->pending_outbound_msg->http_result_code);
1026 curl_easy_cleanup(cs->curl_handle);
1027 cs->curl_handle=NULL;
1029 /* Calling transmit continuation */
1030 if (( NULL != cs->pending_outbound_msg) && (NULL != cs->pending_outbound_msg->transmit_cont))
1032 /* HTTP 1xx : Last message before here was informational */
1033 if ((cs->pending_outbound_msg->http_result_code >=100) && (cs->pending_outbound_msg->http_result_code < 200))
1034 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->partner,GNUNET_OK);
1035 /* HTTP 2xx: successful operations */
1036 if ((cs->pending_outbound_msg->http_result_code >=200) && (cs->pending_outbound_msg->http_result_code < 300))
1037 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->partner,GNUNET_OK);
1038 /* HTTP 3xx..5xx: error */
1039 if ((cs->pending_outbound_msg->http_result_code >=300) && (cs->pending_outbound_msg->http_result_code < 600))
1040 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
1043 if (GNUNET_OK != remove_http_message(cs, cs->pending_outbound_msg))
1044 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Message could not be removed from session `%s'", GNUNET_i2s(&cs->partner));
1045 /* send pending messages */
1046 if (cs->pending_outbound_msg != NULL)
1048 send_select_init (cs);
1056 while ( (running > 0) );
1058 handles_last_run = running;
1060 while (mret == CURLM_CALL_MULTI_PERFORM);
1066 * Function setting up file descriptors and scheduling task to run
1067 * @param ses session to send data to
1068 * @return bytes sent to peer
1070 static size_t send_prepare(struct Session* ses )
1076 struct GNUNET_NETWORK_FDSet *grs;
1077 struct GNUNET_NETWORK_FDSet *gws;
1085 mret = curl_multi_fdset (multi_handle, &rs, &ws, &es, &max);
1086 if (mret != CURLM_OK)
1088 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1089 _("%s failed at %s:%d: `%s'\n"),
1090 "curl_multi_fdset", __FILE__, __LINE__,
1091 curl_multi_strerror (mret));
1094 mret = curl_multi_timeout (multi_handle, &to);
1095 if (mret != CURLM_OK)
1097 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1098 _("%s failed at %s:%d: `%s'\n"),
1099 "curl_multi_timeout", __FILE__, __LINE__,
1100 curl_multi_strerror (mret));
1104 grs = GNUNET_NETWORK_fdset_create ();
1105 gws = GNUNET_NETWORK_fdset_create ();
1106 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
1107 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
1108 http_task_send = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1109 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1110 GNUNET_SCHEDULER_NO_TASK,
1111 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),
1116 GNUNET_NETWORK_fdset_destroy (gws);
1117 GNUNET_NETWORK_fdset_destroy (grs);
1119 /* FIXME: return bytes REALLY sent */
1124 * Function that can be used by the transport service to transmit
1125 * a message using the plugin.
1127 * @param cls closure
1128 * @param target who should receive this message
1129 * @param priority how important is the message
1130 * @param msgbuf the message to transmit
1131 * @param msgbuf_size number of bytes in 'msgbuf'
1132 * @param to when should we time out
1133 * @param session which session must be used (or NULL for "any")
1134 * @param addr the address to use (can be NULL if the plugin
1135 * is "on its own" (i.e. re-use existing TCP connection))
1136 * @param addrlen length of the address in bytes
1137 * @param force_address GNUNET_YES if the plugin MUST use the given address,
1138 * otherwise the plugin may use other addresses or
1139 * existing connections (if available)
1140 * @param cont continuation to call once the message has
1141 * been transmitted (or if the transport is ready
1142 * for the next transmission call; or if the
1143 * peer disconnected...)
1144 * @param cont_cls closure for cont
1145 * @return number of bytes used (on the physical network, with overheads);
1146 * -1 on hard errors (i.e. address invalid); 0 is a legal value
1147 * and does NOT mean that the message was not transmitted (DV)
1150 http_plugin_send (void *cls,
1151 const struct GNUNET_PeerIdentity *target,
1154 unsigned int priority,
1155 struct GNUNET_TIME_Relative to,
1156 struct Session *session,
1160 GNUNET_TRANSPORT_TransmitContinuation cont,
1165 struct Session* ses;
1166 struct Session* ses_temp;
1167 struct HTTP_Message * msg;
1168 struct HTTP_Message * tmp;
1173 /* find session for peer */
1174 ses = find_session_by_pi (target);
1175 /* if (NULL != ses ) GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Existing session for peer `%s' found\n", GNUNET_i2s(target));*/
1178 /* create new session object */
1180 ses = create_session(NULL, (struct sockaddr_in *) addr, target);
1181 ses->is_active = GNUNET_YES;
1183 /* Insert session into linked list */
1184 if ( plugin->sessions == NULL)
1186 plugin->sessions = ses;
1187 plugin->session_count = 1;
1189 ses_temp = plugin->sessions;
1190 while ( ses_temp->next != NULL )
1192 ses_temp = ses_temp->next;
1194 if (ses_temp != ses )
1196 ses_temp->next = ses;
1197 plugin->session_count++;
1199 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1200 "New Session `%s' inserted, count %u\n", GNUNET_i2s(target), plugin->session_count);
1203 GNUNET_assert (addr!=NULL);
1206 /* setting url to send to */
1207 if (force_address == GNUNET_YES)
1209 if (addrlen == (sizeof (struct IPv4HttpAddress)))
1211 address = GNUNET_malloc(INET_ADDRSTRLEN + 1);
1212 inet_ntop(AF_INET, &((struct IPv4HttpAddress *) addr)->ipv4_addr,address,INET_ADDRSTRLEN);
1213 port = ntohs(((struct IPv4HttpAddress *) addr)->u_port);
1214 GNUNET_asprintf (&url,
1218 (char *) (&my_ascii_hash_ident));
1219 GNUNET_free(address);
1221 else if (addrlen == (sizeof (struct IPv6HttpAddress)))
1223 address = GNUNET_malloc(INET6_ADDRSTRLEN + 1);
1224 inet_ntop(AF_INET6, &((struct IPv6HttpAddress *) addr)->ipv6_addr,address,INET6_ADDRSTRLEN);
1225 port = ntohs(((struct IPv6HttpAddress *) addr)->u6_port);
1226 GNUNET_asprintf(&url,
1228 address,port,(char *) (&my_ascii_hash_ident));
1229 GNUNET_free(address);
1233 /* setting up message */
1234 msg = GNUNET_malloc (sizeof (struct HTTP_Message));
1236 msg->len = msgbuf_size;
1238 msg->buf = GNUNET_malloc (msgbuf_size);
1239 msg->dest_url = url;
1240 msg->transmit_cont = cont;
1241 msg->transmit_cont_cls = cont_cls;
1242 memcpy (msg->buf,msgbuf, msgbuf_size);
1243 /* insert created message in list of pending messages */
1244 if (ses->pending_outbound_msg == NULL)
1246 ses->pending_outbound_msg = msg;
1248 tmp = ses->pending_outbound_msg;
1249 while ( NULL != tmp->next)
1257 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));
1258 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: url `%s'\n",url);
1259 if (msg == ses->pending_outbound_msg)
1261 bytes_sent = send_select_init (ses);
1270 * Function that can be used to force the plugin to disconnect
1271 * from the given peer and cancel all previous transmissions
1272 * (and their continuationc).
1274 * @param cls closure
1275 * @param target peer from which to disconnect
1278 http_plugin_disconnect (void *cls,
1279 const struct GNUNET_PeerIdentity *target)
1281 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: http_plugin_disconnect\n");
1282 // struct Plugin *plugin = cls;
1288 * Convert the transports address to a nice, human-readable
1291 * @param cls closure
1292 * @param type name of the transport that generated the address
1293 * @param addr one of the addresses of the host, NULL for the last address
1294 * the specific address format depends on the transport
1295 * @param addrlen length of the address
1296 * @param numeric should (IP) addresses be displayed in numeric form?
1297 * @param timeout after how long should we give up?
1298 * @param asc function to call on each string
1299 * @param asc_cls closure for asc
1302 http_plugin_address_pretty_printer (void *cls,
1307 struct GNUNET_TIME_Relative timeout,
1308 GNUNET_TRANSPORT_AddressStringCallback
1311 const struct IPv4HttpAddress *t4;
1312 const struct IPv6HttpAddress *t6;
1313 struct sockaddr_in a4;
1314 struct sockaddr_in6 a6;
1320 if (addrlen == sizeof (struct IPv6HttpAddress))
1322 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1324 a6.sin6_addr = t6->ipv6_addr;
1325 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1326 port = ntohs(t6->u6_port);
1328 else if (addrlen == sizeof (struct IPv4HttpAddress))
1330 address = GNUNET_malloc (INET_ADDRSTRLEN);
1332 a4.sin_addr.s_addr = t4->ipv4_addr;
1333 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1334 port = ntohs(t4->u_port);
1338 /* invalid address */
1339 GNUNET_break_op (0);
1340 asc (asc_cls, NULL);
1343 res = GNUNET_asprintf(&ret,"http://%s:%u/",address,port);
1344 GNUNET_free (address);
1345 GNUNET_assert(res != 0);
1353 * Another peer has suggested an address for this
1354 * peer and transport plugin. Check that this could be a valid
1355 * address. If so, consider adding it to the list
1358 * @param cls closure
1359 * @param addr pointer to the address
1360 * @param addrlen length of addr
1361 * @return GNUNET_OK if this is a plausible address for this peer
1365 http_plugin_address_suggested (void *cls,
1366 void *addr, size_t addrlen)
1368 struct IPv4HttpAddress *v4;
1369 struct IPv6HttpAddress *v6;
1372 if ((addrlen != sizeof (struct IPv4HttpAddress)) &&
1373 (addrlen != sizeof (struct IPv6HttpAddress)))
1375 return GNUNET_SYSERR;
1377 if (addrlen == sizeof (struct IPv4HttpAddress))
1379 v4 = (struct IPv4HttpAddress *) addr;
1380 if (INADDR_LOOPBACK == ntohl(v4->ipv4_addr))
1382 return GNUNET_SYSERR;
1384 port = ntohs (v4->u_port);
1385 if (port != plugin->port_inbound)
1387 return GNUNET_SYSERR;
1392 v6 = (struct IPv6HttpAddress *) addr;
1393 if (IN6_IS_ADDR_LINKLOCAL (&v6->ipv6_addr))
1395 return GNUNET_SYSERR;
1397 port = ntohs (v6->u6_port);
1398 if (port != plugin->port_inbound)
1400 return GNUNET_SYSERR;
1410 * Function called for a quick conversion of the binary address to
1411 * a numeric address. Note that the caller must not free the
1412 * address and that the next call to this function is allowed
1413 * to override the address again.
1415 * @param cls closure
1416 * @param addr binary address
1417 * @param addrlen length of the address
1418 * @return string representing the same address
1421 http_plugin_address_to_string (void *cls,
1425 const struct IPv4HttpAddress *t4;
1426 const struct IPv6HttpAddress *t6;
1427 struct sockaddr_in a4;
1428 struct sockaddr_in6 a6;
1434 if (addrlen == sizeof (struct IPv6HttpAddress))
1436 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1438 a6.sin6_addr = t6->ipv6_addr;
1439 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1440 port = ntohs(t6->u6_port);
1442 else if (addrlen == sizeof (struct IPv4HttpAddress))
1444 address = GNUNET_malloc (INET_ADDRSTRLEN);
1446 a4.sin_addr.s_addr = t4->ipv4_addr;
1447 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1448 port = ntohs(t4->u_port);
1452 /* invalid address */
1455 res = GNUNET_asprintf(&ret,"%s:%u",address,port);
1456 GNUNET_free (address);
1457 GNUNET_assert(res != 0);
1462 * Add the IP of our network interface to the list of
1463 * our external IP addresses.
1465 * @param cls the 'struct Plugin*'
1466 * @param name name of the interface
1467 * @param isDefault do we think this may be our default interface
1468 * @param addr address of the interface
1469 * @param addrlen number of bytes in addr
1470 * @return GNUNET_OK to continue iterating
1473 process_interfaces (void *cls,
1476 const struct sockaddr *addr, socklen_t addrlen)
1478 struct IPv4HttpAddress t4;
1479 struct IPv6HttpAddress t6;
1484 af = addr->sa_family;
1487 if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
1489 /* skip loopback addresses */
1492 t4.ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
1493 t4.u_port = htons (plugin->port_inbound);
1497 else if (af == AF_INET6)
1499 if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
1501 /* skip link local addresses */
1504 if (IN6_IS_ADDR_LOOPBACK (&((struct sockaddr_in6 *) addr)->sin6_addr))
1506 /* skip loopback addresses */
1509 memcpy (&t6.ipv6_addr,
1510 &((struct sockaddr_in6 *) addr)->sin6_addr,
1511 sizeof (struct in6_addr));
1512 t6.u6_port = htons (plugin->port_inbound);
1521 plugin->env->notify_address(plugin->env->cls,"http",arg, args, GNUNET_TIME_UNIT_FOREVER_REL);
1526 * Exit point from the plugin.
1529 libgnunet_plugin_transport_http_done (void *cls)
1531 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
1532 struct Plugin *plugin = api->cls;
1533 struct Session * cs;
1534 struct Session * cs_next;
1537 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unloading http plugin...\n");
1539 if ( http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1541 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v4);
1542 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
1545 if ( http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1547 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v6);
1548 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1551 if ( http_task_send != GNUNET_SCHEDULER_NO_TASK)
1553 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_send);
1554 http_task_send = GNUNET_SCHEDULER_NO_TASK;
1557 if (http_daemon_v4 != NULL)
1559 MHD_stop_daemon (http_daemon_v4);
1560 http_daemon_v4 = NULL;
1562 if (http_daemon_v6 != NULL)
1564 MHD_stop_daemon (http_daemon_v6);
1565 http_daemon_v6 = NULL;
1568 /* free all sessions */
1569 cs = plugin->sessions;
1573 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing session for peer `%s'\n",GNUNET_i2s(&cs->partner));
1577 /* freeing messages */
1578 struct HTTP_Message *cur;
1579 struct HTTP_Message *tmp;
1580 cur = cs->pending_outbound_msg;
1585 GNUNET_free_non_null(cur->dest_url);
1586 GNUNET_free_non_null (cur->buf);
1590 GNUNET_SERVER_mst_destroy (cs->msgtok);
1591 GNUNET_free (cs->pending_inbound_msg->buf);
1592 GNUNET_free (cs->pending_inbound_msg);
1593 GNUNET_free_non_null (cs->addr_inbound);
1594 GNUNET_free_non_null (cs->addr_inbound_str);
1595 GNUNET_free_non_null (cs->addr_outbound);
1598 plugin->session_count--;
1602 mret = curl_multi_cleanup(multi_handle);
1603 if ( CURLM_OK != mret)
1604 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed");
1606 GNUNET_free (plugin);
1613 * Entry point for the plugin.
1616 libgnunet_plugin_transport_http_init (void *cls)
1618 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
1619 struct GNUNET_TRANSPORT_PluginFunctions *api;
1620 unsigned int timeout;
1621 struct GNUNET_TIME_Relative gn_timeout;
1622 long long unsigned int port;
1624 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting http plugin...\n");
1626 plugin = GNUNET_malloc (sizeof (struct Plugin));
1628 plugin->sessions = NULL;
1629 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
1631 api->send = &http_plugin_send;
1632 api->disconnect = &http_plugin_disconnect;
1633 api->address_pretty_printer = &http_plugin_address_pretty_printer;
1634 api->check_address = &http_plugin_address_suggested;
1635 api->address_to_string = &http_plugin_address_to_string;
1637 /* Hashing our identity to use it in URLs */
1638 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &my_ascii_hash_ident);
1640 /* Reading port number from config file */
1642 GNUNET_CONFIGURATION_get_value_number (env->cfg,
1648 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1651 ("Require valid port number for transport plugin `%s' in configuration!\n"),
1653 libgnunet_plugin_transport_http_done (api);
1656 GNUNET_assert ((port > 0) && (port <= 65535));
1657 plugin->port_inbound = port;
1658 gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
1659 timeout = ( gn_timeout.value / 1000);
1660 if ((http_daemon_v4 == NULL) && (http_daemon_v6 == NULL) && (port != 0))
1662 http_daemon_v6 = MHD_start_daemon (MHD_USE_IPv6,
1664 &acceptPolicyCallback,
1665 NULL , &accessHandlerCallback, NULL,
1666 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1667 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1668 MHD_OPTION_CONNECTION_TIMEOUT, timeout,
1669 /* FIXME: set correct limit */
1670 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1671 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1673 http_daemon_v4 = MHD_start_daemon (MHD_NO_FLAG,
1675 &acceptPolicyCallback,
1676 NULL , &accessHandlerCallback, NULL,
1677 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1678 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1679 MHD_OPTION_CONNECTION_TIMEOUT, timeout,
1680 /* FIXME: set correct limit */
1681 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1682 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1685 if (http_daemon_v4 != NULL)
1686 http_task_v4 = http_daemon_prepare (http_daemon_v4);
1687 if (http_daemon_v6 != NULL)
1688 http_task_v6 = http_daemon_prepare (http_daemon_v6);
1690 if (http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1691 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 on port %u\n",port);
1692 else if (http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1693 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 on port %u\n",port);
1696 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No MHD was started, transport plugin not functional!\n");
1697 libgnunet_plugin_transport_http_done (api);
1701 /* Initializing cURL */
1702 multi_handle = curl_multi_init();
1703 if ( NULL == multi_handle )
1705 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1707 _("Could not initialize curl multi handle, failed to start http plugin!\n"),
1709 libgnunet_plugin_transport_http_done (api);
1713 GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
1718 /* end of plugin_transport_template.c */