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_http.c
23 * @brief http transport service plugin
24 * @author Matthias Wachs
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_NO
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 * Network format for IPv4 addresses.
74 struct IPv4HttpAddress
77 * IPv4 address, in network byte order.
82 * Port number, in network byte order.
90 * Network format for IPv6 addresses.
92 struct IPv6HttpAddress
97 struct in6_addr ipv6_addr;
100 * Port number, in network byte order.
106 struct HTTP_inbound_transmission
115 * Message to send using http
120 * next pointer for double linked list
122 struct HTTP_Message * next;
125 * previous pointer for double linked list
127 struct HTTP_Message * prev;
130 * buffer containing data to send
135 * amount of data already sent
147 * Continuation function to call once the transmission buffer
148 * has again space available. NULL if there is no
149 * continuation to call.
151 GNUNET_TRANSPORT_TransmitContinuation transmit_cont;
154 * Closure for transmit_cont.
156 void *transmit_cont_cls;
161 * Session handle for connections.
167 * Stored in a linked list.
169 struct Session *next;
172 * Pointer to the global plugin struct.
174 struct Plugin *plugin;
177 * To whom are we talking to (set to our identity
178 * if we are still waiting for the welcome message)
180 struct GNUNET_PeerIdentity partner;
183 * Sender's ip address to distinguish between incoming connections
185 //struct sockaddr_in * addr_inbound;
188 * Sender's ip address to distinguish between incoming connections
199 * Did we initiate the connection (GNUNET_YES) or the other peer (GNUNET_NO)?
204 * Is the connection active (GNUNET_YES) or terminated (GNUNET_NO)?
209 * At what time did we reset last_received last?
211 struct GNUNET_TIME_Absolute last_quota_update;
214 * How many bytes have we received since the "last_quota_update"
217 uint64_t last_received;
220 * Number of bytes per ms that this peer is allowed
226 * Is there a HTTP/PUT in progress?
228 int is_put_in_progress;
231 * Is the http request invalid?
238 struct GNUNET_CRYPTO_HashAsciiEncoded hash;
241 * Head of dll used to store outbound messages
243 struct HTTP_Message * pending_outbound_msg_head;
246 * Tail of dll used to store outbound messages
248 struct HTTP_Message * pending_outbound_msg_tail;
253 struct HTTP_inbound_transmission pending_inbound_msg;
256 * curl handle for outbound transmissions
261 * Message tokenizer for incoming data
263 struct GNUNET_SERVER_MessageStreamTokenizer * msgtok;
267 * Encapsulation of all of the state of the plugin.
274 struct GNUNET_TRANSPORT_PluginEnvironment *env;
276 unsigned int port_inbound;
279 * Hashmap for all existing sessions.
281 struct GNUNET_CONTAINER_MultiHashMap *sessions;
284 * Daemon for listening for new IPv4 connections.
286 struct MHD_Daemon *http_server_daemon_v4;
289 * Daemon for listening for new IPv6connections.
291 struct MHD_Daemon *http_server_daemon_v6;
294 * Our primary task for http daemon handling IPv4 connections
296 GNUNET_SCHEDULER_TaskIdentifier http_server_task_v4;
299 * Our primary task for http daemon handling IPv6 connections
301 GNUNET_SCHEDULER_TaskIdentifier http_server_task_v6;
304 * The task sending data
306 GNUNET_SCHEDULER_TaskIdentifier http_server_task_send;
311 CURLM * multi_handle;
314 * Our ASCII encoded, hashed peer identity
315 * This string is used to distinguish between connections and is added to the urls
317 struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
321 * Create a new session
323 * @param addr_in address the peer is using inbound
324 * @param addr_out address the peer is using outbound
325 * @param peer identity
326 * @return created session object
328 static struct Session * create_session (void * cls, char * addr_in, size_t addrlen_in, char * addr_out, size_t addrlen_out, const struct GNUNET_PeerIdentity *peer)
330 struct Plugin *plugin = cls;
331 struct Session * ses = GNUNET_malloc ( sizeof( struct Session) );
333 GNUNET_assert(cls !=NULL);
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.bytes_recv = 0;
357 * Callback called by MHD when a connection is terminated
359 static void requestCompletedCallback (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
363 cs = *httpSessionCache;
366 /*GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection from peer `%s' was terminated\n",GNUNET_i2s(&cs->partner));*/
367 /* session set to inactive */
368 cs->is_active = GNUNET_NO;
369 cs->is_put_in_progress = GNUNET_NO;
373 static void messageTokenizerCallback (void *cls,
375 const struct GNUNET_MessageHeader *message)
377 struct Session * cs = cls;
378 GNUNET_assert(cs != NULL);
380 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
381 "Received message with type %u and size %u from `%s'\n",
382 ntohs(message->type),
383 ntohs(message->size),
384 GNUNET_i2s(&(cs->partner)));
385 cs->plugin->env->receive(cs->plugin->env->cls,
392 * Check if ip is allowed to connect.
395 acceptPolicyCallback (void *cls,
396 const struct sockaddr *addr, socklen_t addr_len)
399 struct Plugin *plugin = cls;
401 /* Every connection is accepted, nothing more to do here */
406 * Process GET or PUT request received via MHD. For
407 * GET, queue response that will send back our pending
408 * messages. For PUT, process incoming data and send
409 * to GNUnet core. In either case, check if a session
410 * already exists and create a new one if not.
413 accessHandlerCallback (void *cls,
414 struct MHD_Connection *session,
418 const char *upload_data,
419 size_t * upload_data_size, void **httpSessionCache)
421 struct Plugin *plugin = cls;
422 struct MHD_Response *response;
424 const union MHD_ConnectionInfo * conn_info;
425 struct sockaddr_in *addrin;
426 struct sockaddr_in6 *addrin6;
427 char address[INET6_ADDRSTRLEN+14];
428 struct GNUNET_PeerIdentity pi_in;
430 int send_error_to_client;
431 struct IPv4HttpAddress ipv4addr;
432 struct IPv6HttpAddress ipv6addr;
434 GNUNET_assert(cls !=NULL);
435 send_error_to_client = GNUNET_NO;
437 if ( NULL == *httpSessionCache)
439 /* check url for peer identity */
440 res = GNUNET_CRYPTO_hash_from_string ( &url[1], &(pi_in.hashPubKey));
441 if ( GNUNET_SYSERR == res )
443 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
444 res = MHD_queue_response (session, MHD_HTTP_NOT_FOUND, response);
445 MHD_destroy_response (response);
447 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");
449 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
453 conn_info = MHD_get_connection_info(session, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
454 /* Incoming IPv4 connection */
455 if ( AF_INET == conn_info->client_addr->sin_family)
457 addrin = conn_info->client_addr;
458 inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
459 memcpy(&ipv4addr.ipv4_addr,&(addrin->sin_addr),sizeof(struct in_addr));
460 ipv4addr.u_port = addrin->sin_port;
462 /* Incoming IPv6 connection */
463 if ( AF_INET6 == conn_info->client_addr->sin_family)
465 addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
466 inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
467 memcpy(&ipv6addr.ipv6_addr,&(addrin6->sin6_addr),sizeof(struct in_addr));
468 ipv6addr.u6_port = addrin6->sin6_port;
470 /* find existing session for address */
471 cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &pi_in.hashPubKey);
472 /* no existing session, create a new one*/
475 /* create new session object */
476 if ( AF_INET6 == conn_info->client_addr->sin_family)
477 cs = create_session(plugin, (char *) &ipv6addr, sizeof(struct IPv6HttpAddress),NULL, 0, &pi_in);
478 if ( AF_INET == conn_info->client_addr->sin_family)
479 cs = create_session(plugin, (char *) &ipv4addr, sizeof(struct IPv4HttpAddress),NULL, 0, &pi_in);
481 /* Insert session into hashmap */
482 GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
483 &cs->partner.hashPubKey,
485 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
487 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"New Session for peer `%s' inserted\n", GNUNET_i2s(&cs->partner));
490 /* Set closure and update current session*/
491 if (*httpSessionCache == NULL)
493 *httpSessionCache = cs;
494 /* Updating session */
496 memcpy(cs->addr_inbound,conn_info->client_addr, sizeof(struct sockaddr_in));
497 if ( AF_INET == cs->addr_inbound->sin_family)
499 GNUNET_asprintf(&cs->addr_inbound_str,"%s:%u",address,ntohs(cs->addr_inbound->sin_port));
502 if ( AF_INET6 == cs->addr_inbound->sin_family)
504 GNUNET_asprintf(&cs->addr_inbound_str,"[%s]:%u",address,ntohs(cs->addr_inbound->sin_port));
508 if (cs->msgtok==NULL)
509 cs->msgtok = GNUNET_SERVER_mst_create (GNUNET_SERVER_MAX_MESSAGE_SIZE, &messageTokenizerCallback, cs);
511 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Daemon has new an incoming `%s' request from peer `%s'\n",method, GNUNET_i2s(&cs->partner));
515 cs = *httpSessionCache;
517 /* Is it a PUT or a GET request */
518 if ( 0 == strcmp (MHD_HTTP_METHOD_PUT, method) )
521 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_NO))
523 if (cs->pending_inbound_msg.bytes_recv !=0 )
525 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
526 _("Incoming message from peer `%s', while existing message with %u bytes was not forwarded to transport'\n"),
527 GNUNET_i2s(&cs->partner), cs->pending_inbound_msg.bytes_recv);
528 cs->pending_inbound_msg.bytes_recv = 0;
531 cs->is_put_in_progress = GNUNET_YES;
532 cs->is_bad_request = GNUNET_NO;
533 cs->is_active = GNUNET_YES;
537 if ((*upload_data_size > 0) && (cs->is_bad_request != GNUNET_YES))
539 if (*upload_data_size + cs->pending_inbound_msg.bytes_recv <= GNUNET_SERVER_MAX_MESSAGE_SIZE)
541 /* copy uploaded data to buffer */
543 res = GNUNET_SERVER_mst_receive(cs->msgtok, cs, upload_data,*upload_data_size, GNUNET_YES, GNUNET_NO);
544 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"%u bytes forwarded to MST: result: %u\n",*upload_data_size, res);
545 cs->pending_inbound_msg.bytes_recv += *upload_data_size;
546 *upload_data_size = 0;
551 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.bytes_recv);
552 cs->is_bad_request = GNUNET_YES;
553 /* (*upload_data_size) bytes not processed */
558 if ((cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_YES))
560 *upload_data_size = 0;
561 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
562 res = MHD_queue_response (session, MHD_HTTP_REQUEST_ENTITY_TOO_LARGE, response);
565 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 413 Request Entity Too Large as PUT Response\n");
566 cs->is_bad_request = GNUNET_NO;
567 cs->is_put_in_progress =GNUNET_NO;
568 cs->pending_inbound_msg.bytes_recv = 0;
570 MHD_destroy_response (response);
574 /* Transmission of all data complete */
575 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_NO))
577 send_error_to_client = GNUNET_YES;
578 if (cs->pending_inbound_msg.bytes_recv >= sizeof (struct GNUNET_MessageHeader))
580 //res = GNUNET_SERVER_mst_receive(cs->msgtok, cs, cs->pending_inbound_msg->buf,cs->pending_inbound_msg.bytes_recv, GNUNET_YES, GNUNET_NO);
582 if ((res != GNUNET_SYSERR) && (res != GNUNET_NO))
583 send_error_to_client = GNUNET_NO;
585 if (send_error_to_client == GNUNET_NO)
587 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
588 res = MHD_queue_response (session, MHD_HTTP_OK, response);
589 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 200 OK as PUT Response\n",HTTP_PUT_RESPONSE, strlen (HTTP_PUT_RESPONSE), res );
590 MHD_destroy_response (response);
594 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
595 res = MHD_queue_response (session, MHD_HTTP_BAD_REQUEST, response);
596 MHD_destroy_response (response);
597 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 400 BAD REQUEST as PUT Response\n");
599 cs->is_put_in_progress = GNUNET_NO;
600 cs->is_bad_request = GNUNET_NO;
601 cs->pending_inbound_msg.bytes_recv = 0;
605 if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
607 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Got GET Request\n");
608 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"URL: `%s'\n",url);
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_OK, response);
611 MHD_destroy_response (response);
619 * Call MHD to process pending ipv4 requests and then go back
620 * and schedule the next run.
622 static void http_server_daemon_v4_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
624 * Call MHD to process pending ipv6 requests and then go back
625 * and schedule the next run.
627 static void http_server_daemon_v6_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
630 * Function that queries MHD's select sets and
631 * starts the task waiting for them.
633 static GNUNET_SCHEDULER_TaskIdentifier
634 http_server_daemon_prepare (void * cls, struct MHD_Daemon *daemon_handle)
636 struct Plugin *plugin = cls;
637 GNUNET_SCHEDULER_TaskIdentifier ret;
641 struct GNUNET_NETWORK_FDSet *wrs;
642 struct GNUNET_NETWORK_FDSet *wws;
643 struct GNUNET_NETWORK_FDSet *wes;
645 unsigned long long timeout;
647 struct GNUNET_TIME_Relative tv;
649 GNUNET_assert(cls !=NULL);
653 wrs = GNUNET_NETWORK_fdset_create ();
654 wes = GNUNET_NETWORK_fdset_create ();
655 wws = GNUNET_NETWORK_fdset_create ();
657 GNUNET_assert (MHD_YES ==
658 MHD_get_fdset (daemon_handle,
663 haveto = MHD_get_timeout (daemon_handle, &timeout);
664 if (haveto == MHD_YES)
665 tv.value = (uint64_t) timeout;
667 tv = GNUNET_TIME_UNIT_FOREVER_REL;
668 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
669 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
670 GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
671 if (daemon_handle == plugin->http_server_daemon_v4)
673 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
674 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
675 GNUNET_SCHEDULER_NO_TASK,
679 &http_server_daemon_v4_run,
682 if (daemon_handle == plugin->http_server_daemon_v6)
684 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
685 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
686 GNUNET_SCHEDULER_NO_TASK,
690 &http_server_daemon_v6_run,
693 GNUNET_NETWORK_fdset_destroy (wrs);
694 GNUNET_NETWORK_fdset_destroy (wws);
695 GNUNET_NETWORK_fdset_destroy (wes);
700 * Call MHD to process pending requests and then go back
701 * and schedule the next run.
703 static void http_server_daemon_v4_run (void *cls,
704 const struct GNUNET_SCHEDULER_TaskContext *tc)
706 struct Plugin *plugin = cls;
708 GNUNET_assert(cls !=NULL);
709 if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
710 plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;
712 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
715 GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v4));
716 plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
722 * Call MHD to process pending requests and then go back
723 * and schedule the next run.
725 static void http_server_daemon_v6_run (void *cls,
726 const struct GNUNET_SCHEDULER_TaskContext *tc)
728 struct Plugin *plugin = cls;
730 GNUNET_assert(cls !=NULL);
731 if (plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
732 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
734 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
737 GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v6));
738 plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
743 * Removes a message from the linked list of messages
744 * @param ses session to remove message from
745 * @param msg message to remove
746 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
749 static int remove_http_message(struct Session * ses, struct HTTP_Message * msg)
751 GNUNET_CONTAINER_DLL_remove(ses->pending_outbound_msg_head,ses->pending_outbound_msg_tail,msg);
752 GNUNET_free (msg->dest_url);
758 static size_t header_function( void *ptr, size_t size, size_t nmemb, void *stream)
761 size_t len = size * nmemb;
764 if ((size * nmemb) < SIZE_MAX)
765 tmp = GNUNET_malloc (len+1);
767 if ((tmp != NULL) && (len > 0))
772 if (tmp[len-2] == 13)
776 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s'\n",tmp);
786 * Callback method used with libcurl
787 * Method is called when libcurl needs to read data during sending
788 * @param stream pointer where to write data
789 * @param size size of an individual element
790 * @param nmemb count of elements that can be written to the buffer
791 * @param ptr source pointer, passed to the libcurl handle
792 * @return bytes written to stream
794 static size_t send_read_callback(void *stream, size_t size, size_t nmemb, void *ptr)
796 struct Session * ses = ptr;
797 struct HTTP_Message * msg = ses->pending_outbound_msg_tail;
802 if (( msg->pos < msg->size))
804 /* data fit in buffer */
805 if ((msg->size - msg->pos) <= (size * nmemb))
807 len = (msg->size - msg->pos);
808 memcpy(stream, &msg->buf[msg->pos], len);
815 memcpy(stream, &msg->buf[msg->pos], len);
820 /* no data to send */
829 * Callback method used with libcurl
830 * Method is called when libcurl needs to write data during sending
831 * @param stream pointer where to write data
832 * @param size size of an individual element
833 * @param nmemb count of elements that can be written to the buffer
834 * @param ptr destination pointer, passed to the libcurl handle
835 * @return bytes read from stream
837 static size_t send_write_callback( void *stream, size_t size, size_t nmemb, void *ptr)
841 if ((size * nmemb) < SIZE_MAX)
842 data = GNUNET_malloc(size*nmemb +1);
845 memcpy( data, stream, size*nmemb);
846 data[size*nmemb] = '\0';
849 return (size * nmemb);
854 * Function setting up file descriptors and scheduling task to run
855 * @param ses session to send data to
856 * @return bytes sent to peer
858 static size_t send_prepare(void *cls, struct Session* ses );
861 * Function setting up curl handle and selecting message to send
862 * @param ses session to send data to
863 * @return bytes sent to peer
865 static ssize_t send_select_init (void *cls, struct Session* ses )
867 struct Plugin *plugin = cls;
870 struct HTTP_Message * msg;
872 GNUNET_assert(cls !=NULL);
873 if ( NULL == ses->curl_handle)
874 ses->curl_handle = curl_easy_init();
875 if( NULL == ses->curl_handle)
877 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Getting cURL handle failed\n");
880 GNUNET_assert (NULL != ses->pending_outbound_msg_tail);
881 msg = ses->pending_outbound_msg_tail;
884 curl_easy_setopt(ses->curl_handle, CURLOPT_VERBOSE, 1L);
886 curl_easy_setopt(ses->curl_handle, CURLOPT_URL, msg->dest_url);
887 curl_easy_setopt(ses->curl_handle, CURLOPT_PUT, 1L);
888 curl_easy_setopt(ses->curl_handle, CURLOPT_HEADERFUNCTION, &header_function);
889 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEHEADER, ses);
890 curl_easy_setopt(ses->curl_handle, CURLOPT_READFUNCTION, send_read_callback);
891 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
892 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEFUNCTION, send_write_callback);
893 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
894 curl_easy_setopt(ses->curl_handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t) msg->size);
895 curl_easy_setopt(ses->curl_handle, CURLOPT_TIMEOUT, GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT);
896 GNUNET_assert (CURLE_OK == curl_easy_setopt(ses->curl_handle, CURLOPT_PRIVATE, ses));
897 curl_easy_setopt(ses->curl_handle, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
898 curl_easy_setopt(ses->curl_handle, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
900 mret = curl_multi_add_handle(plugin->multi_handle, ses->curl_handle);
901 if (mret != CURLM_OK)
903 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
904 _("%s failed at %s:%d: `%s'\n"),
905 "curl_multi_add_handle", __FILE__, __LINE__,
906 curl_multi_strerror (mret));
909 bytes_sent = send_prepare (plugin, ses );
913 static void send_execute (void *cls,
914 const struct GNUNET_SCHEDULER_TaskContext *tc)
916 struct Plugin *plugin = cls;
917 static unsigned int handles_last_run;
921 struct Session * cs = NULL;
924 GNUNET_assert(cls !=NULL);
925 plugin->http_server_task_send = GNUNET_SCHEDULER_NO_TASK;
926 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
932 mret = curl_multi_perform (plugin->multi_handle, &running);
933 if (running < handles_last_run)
938 msg = curl_multi_info_read (plugin->multi_handle, &running);
939 GNUNET_break (msg != NULL);
942 /* get session for affected curl handle */
943 GNUNET_assert ( msg->easy_handle != NULL );
944 curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &cs);
945 GNUNET_assert ( cs != NULL );
946 GNUNET_assert ( cs->pending_outbound_msg_tail != NULL );
951 if ( (msg->data.result != CURLE_OK) &&
952 (msg->data.result != CURLE_GOT_NOTHING) )
954 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
955 _("%s failed for `%s' at %s:%d: `%s'\n"),
956 "curl_multi_perform",
957 GNUNET_i2s(&cs->partner),
960 curl_easy_strerror (msg->data.result));
961 /* sending msg failed*/
962 if (( NULL != cs->pending_outbound_msg_tail) && ( NULL != cs->pending_outbound_msg_tail->transmit_cont))
963 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
967 GNUNET_assert (CURLE_OK == curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result));
968 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
969 "Send to peer `%s' completed with code %u\n", GNUNET_i2s(&cs->partner), http_result );
971 curl_easy_cleanup(cs->curl_handle);
972 cs->curl_handle=NULL;
974 /* Calling transmit continuation */
975 if (( NULL != cs->pending_outbound_msg_tail) && (NULL != cs->pending_outbound_msg_tail->transmit_cont))
977 /* HTTP 1xx : Last message before here was informational */
978 if ((http_result >=100) && (http_result < 200))
979 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_OK);
980 /* HTTP 2xx: successful operations */
981 if ((http_result >=200) && (http_result < 300))
982 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_OK);
983 /* HTTP 3xx..5xx: error */
984 if ((http_result >=300) && (http_result < 600))
985 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
989 if (GNUNET_OK != remove_http_message(cs, cs->pending_outbound_msg_tail))
990 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Message could not be removed from session `%s'", GNUNET_i2s(&cs->partner));
991 /* send pending messages */
992 if (cs->pending_outbound_msg_tail!= NULL)
994 send_select_init (plugin, cs);
1002 while ( (running > 0) );
1004 handles_last_run = running;
1006 while (mret == CURLM_CALL_MULTI_PERFORM);
1007 send_prepare(plugin, cls);
1012 * Function setting up file descriptors and scheduling task to run
1013 * @param ses session to send data to
1014 * @return bytes sent to peer
1016 static size_t send_prepare(void *cls, struct Session* ses )
1018 struct Plugin *plugin = cls;
1023 struct GNUNET_NETWORK_FDSet *grs;
1024 struct GNUNET_NETWORK_FDSet *gws;
1028 GNUNET_assert(cls !=NULL);
1033 mret = curl_multi_fdset (plugin->multi_handle, &rs, &ws, &es, &max);
1034 if (mret != CURLM_OK)
1036 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1037 _("%s failed at %s:%d: `%s'\n"),
1038 "curl_multi_fdset", __FILE__, __LINE__,
1039 curl_multi_strerror (mret));
1042 mret = curl_multi_timeout (plugin->multi_handle, &to);
1043 if (mret != CURLM_OK)
1045 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1046 _("%s failed at %s:%d: `%s'\n"),
1047 "curl_multi_timeout", __FILE__, __LINE__,
1048 curl_multi_strerror (mret));
1052 grs = GNUNET_NETWORK_fdset_create ();
1053 gws = GNUNET_NETWORK_fdset_create ();
1054 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
1055 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
1056 plugin->http_server_task_send = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1057 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1058 GNUNET_SCHEDULER_NO_TASK,
1059 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),
1064 GNUNET_NETWORK_fdset_destroy (gws);
1065 GNUNET_NETWORK_fdset_destroy (grs);
1067 /* FIXME: return bytes REALLY sent */
1072 * Function that can be used by the transport service to transmit
1073 * a message using the plugin.
1075 * @param cls closure
1076 * @param target who should receive this message
1077 * @param priority how important is the message
1078 * @param msgbuf the message to transmit
1079 * @param msgbuf_size number of bytes in 'msgbuf'
1080 * @param to when should we time out
1081 * @param session which session must be used (or NULL for "any")
1082 * @param addr the address to use (can be NULL if the plugin
1083 * is "on its own" (i.e. re-use existing TCP connection))
1084 * @param addrlen length of the address in bytes
1085 * @param force_address GNUNET_YES if the plugin MUST use the given address,
1086 * otherwise the plugin may use other addresses or
1087 * existing connections (if available)
1088 * @param cont continuation to call once the message has
1089 * been transmitted (or if the transport is ready
1090 * for the next transmission call; or if the
1091 * peer disconnected...)
1092 * @param cont_cls closure for cont
1093 * @return number of bytes used (on the physical network, with overheads);
1094 * -1 on hard errors (i.e. address invalid); 0 is a legal value
1095 * and does NOT mean that the message was not transmitted (DV)
1098 http_plugin_send (void *cls,
1099 const struct GNUNET_PeerIdentity *target,
1102 unsigned int priority,
1103 struct GNUNET_TIME_Relative to,
1104 struct Session *session,
1108 GNUNET_TRANSPORT_TransmitContinuation cont,
1111 struct Plugin *plugin = cls;
1115 struct HTTP_Message *msg;
1118 GNUNET_assert(cls !=NULL);
1122 cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &target->hashPubKey);
1125 cs = create_session(plugin, (char *) addr, addrlen, NULL, 0, target);
1126 cs->is_active = GNUNET_YES;
1127 res = GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
1128 &cs->partner.hashPubKey,
1130 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1131 if (res == GNUNET_OK)
1132 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1133 "New Session `%s' inserted\n", GNUNET_i2s(target));
1136 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1137 "Session `%s' found\n", GNUNET_i2s(target));
1139 GNUNET_assert ((addr!=NULL) && (addrlen != 0));
1140 if (addrlen == (sizeof (struct IPv4HttpAddress)))
1142 address = GNUNET_malloc(INET_ADDRSTRLEN + 1);
1143 inet_ntop(AF_INET, &((struct IPv4HttpAddress *) addr)->ipv4_addr,address,INET_ADDRSTRLEN);
1144 GNUNET_asprintf (&url,
1147 ntohs(((struct IPv4HttpAddress *) addr)->u_port),
1148 (char *) (&plugin->my_ascii_hash_ident));
1149 GNUNET_free(address);
1151 else if (addrlen == (sizeof (struct IPv6HttpAddress)))
1153 address = GNUNET_malloc(INET6_ADDRSTRLEN + 1);
1154 inet_ntop(AF_INET6, &((struct IPv6HttpAddress *) addr)->ipv6_addr,address,INET6_ADDRSTRLEN);
1155 GNUNET_asprintf(&url,
1158 ntohs(((struct IPv6HttpAddress *) addr)->u6_port),
1159 (char *) (&plugin->my_ascii_hash_ident));
1160 GNUNET_free(address);
1163 /* setting up message */
1164 msg = GNUNET_malloc (sizeof (struct HTTP_Message) + msgbuf_size);
1166 msg->size = msgbuf_size;
1168 msg->buf = (char *) &msg[1];
1169 msg->dest_url = url;
1170 msg->transmit_cont = cont;
1171 msg->transmit_cont_cls = cont_cls;
1172 memcpy (msg->buf,msgbuf, msgbuf_size);
1173 /* insert created message in double linked list of pending messages */
1174 GNUNET_CONTAINER_DLL_insert (cs->pending_outbound_msg_head, cs->pending_outbound_msg_tail, msg);
1176 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: sending %u bytes of data from peer `%4.4s' to peer `%s'\n",msgbuf_size,(char *) &plugin->my_ascii_hash_ident,GNUNET_i2s(target));
1177 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: url `%s'\n",url);
1178 if (msg == cs->pending_outbound_msg_tail)
1180 return send_select_init (plugin, cs);
1188 * Function that can be used to force the plugin to disconnect
1189 * from the given peer and cancel all previous transmissions
1190 * (and their continuationc).
1192 * @param cls closure
1193 * @param target peer from which to disconnect
1196 http_plugin_disconnect (void *cls,
1197 const struct GNUNET_PeerIdentity *target)
1199 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: http_plugin_disconnect\n");
1200 // struct Plugin *plugin = cls;
1206 * Convert the transports address to a nice, human-readable
1209 * @param cls closure
1210 * @param type name of the transport that generated the address
1211 * @param addr one of the addresses of the host, NULL for the last address
1212 * the specific address format depends on the transport
1213 * @param addrlen length of the address
1214 * @param numeric should (IP) addresses be displayed in numeric form?
1215 * @param timeout after how long should we give up?
1216 * @param asc function to call on each string
1217 * @param asc_cls closure for asc
1220 http_plugin_address_pretty_printer (void *cls,
1225 struct GNUNET_TIME_Relative timeout,
1226 GNUNET_TRANSPORT_AddressStringCallback
1229 const struct IPv4HttpAddress *t4;
1230 const struct IPv6HttpAddress *t6;
1231 struct sockaddr_in a4;
1232 struct sockaddr_in6 a6;
1238 GNUNET_assert(cls !=NULL);
1239 if (addrlen == sizeof (struct IPv6HttpAddress))
1241 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1243 a6.sin6_addr = t6->ipv6_addr;
1244 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1245 port = ntohs(t6->u6_port);
1247 else if (addrlen == sizeof (struct IPv4HttpAddress))
1249 address = GNUNET_malloc (INET_ADDRSTRLEN);
1251 a4.sin_addr.s_addr = t4->ipv4_addr;
1252 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1253 port = ntohs(t4->u_port);
1257 /* invalid address */
1258 GNUNET_break_op (0);
1259 asc (asc_cls, NULL);
1262 res = GNUNET_asprintf(&ret,"http://%s:%u/",address,port);
1263 GNUNET_free (address);
1264 GNUNET_assert(res != 0);
1272 * Another peer has suggested an address for this
1273 * peer and transport plugin. Check that this could be a valid
1274 * address. If so, consider adding it to the list
1277 * @param cls closure
1278 * @param addr pointer to the address
1279 * @param addrlen length of addr
1280 * @return GNUNET_OK if this is a plausible address for this peer
1284 http_plugin_address_suggested (void *cls,
1285 void *addr, size_t addrlen)
1287 struct Plugin *plugin = cls;
1288 struct IPv4HttpAddress *v4;
1289 struct IPv6HttpAddress *v6;
1292 GNUNET_assert(cls !=NULL);
1293 if ((addrlen != sizeof (struct IPv4HttpAddress)) &&
1294 (addrlen != sizeof (struct IPv6HttpAddress)))
1296 return GNUNET_SYSERR;
1298 if (addrlen == sizeof (struct IPv4HttpAddress))
1300 v4 = (struct IPv4HttpAddress *) addr;
1301 if (INADDR_LOOPBACK == ntohl(v4->ipv4_addr))
1303 return GNUNET_SYSERR;
1305 port = ntohs (v4->u_port);
1306 if (port != plugin->port_inbound)
1308 return GNUNET_SYSERR;
1313 v6 = (struct IPv6HttpAddress *) addr;
1314 if (IN6_IS_ADDR_LINKLOCAL (&v6->ipv6_addr))
1316 return GNUNET_SYSERR;
1318 port = ntohs (v6->u6_port);
1319 if (port != plugin->port_inbound)
1321 return GNUNET_SYSERR;
1331 * Function called for a quick conversion of the binary address to
1332 * a numeric address. Note that the caller must not free the
1333 * address and that the next call to this function is allowed
1334 * to override the address again.
1336 * @param cls closure
1337 * @param addr binary address
1338 * @param addrlen length of the address
1339 * @return string representing the same address
1342 http_plugin_address_to_string (void *cls,
1346 const struct IPv4HttpAddress *t4;
1347 const struct IPv6HttpAddress *t6;
1348 struct sockaddr_in a4;
1349 struct sockaddr_in6 a6;
1355 GNUNET_assert(cls !=NULL);
1356 if (addrlen == sizeof (struct IPv6HttpAddress))
1358 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1360 a6.sin6_addr = t6->ipv6_addr;
1361 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1362 port = ntohs(t6->u6_port);
1364 else if (addrlen == sizeof (struct IPv4HttpAddress))
1366 address = GNUNET_malloc (INET_ADDRSTRLEN);
1368 a4.sin_addr.s_addr = t4->ipv4_addr;
1369 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1370 port = ntohs(t4->u_port);
1374 /* invalid address */
1377 res = GNUNET_asprintf(&ret,"%s:%u",address,port);
1378 GNUNET_free (address);
1379 GNUNET_assert(res != 0);
1384 * Add the IP of our network interface to the list of
1385 * our external IP addresses.
1387 * @param cls the 'struct Plugin*'
1388 * @param name name of the interface
1389 * @param isDefault do we think this may be our default interface
1390 * @param addr address of the interface
1391 * @param addrlen number of bytes in addr
1392 * @return GNUNET_OK to continue iterating
1395 process_interfaces (void *cls,
1398 const struct sockaddr *addr, socklen_t addrlen)
1400 struct Plugin *plugin = cls;
1401 struct IPv4HttpAddress t4;
1402 struct IPv6HttpAddress t6;
1407 GNUNET_assert(cls !=NULL);
1408 af = addr->sa_family;
1411 if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
1413 /* skip loopback addresses */
1416 t4.ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
1417 t4.u_port = htons (plugin->port_inbound);
1421 else if (af == AF_INET6)
1423 if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
1425 /* skip link local addresses */
1428 if (IN6_IS_ADDR_LOOPBACK (&((struct sockaddr_in6 *) addr)->sin6_addr))
1430 /* skip loopback addresses */
1433 memcpy (&t6.ipv6_addr,
1434 &((struct sockaddr_in6 *) addr)->sin6_addr,
1435 sizeof (struct in6_addr));
1436 t6.u6_port = htons (plugin->port_inbound);
1445 plugin->env->notify_address(plugin->env->cls,"http",arg, args, GNUNET_TIME_UNIT_FOREVER_REL);
1449 int hashMapFreeIterator (void *cls, const GNUNET_HashCode *key, void *value)
1451 struct Session * cs = value;
1453 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing session for peer `%s'\n",GNUNET_i2s(&cs->partner));
1455 /* freeing messages */
1456 struct HTTP_Message *cur;
1457 struct HTTP_Message *tmp;
1458 cur = cs->pending_outbound_msg_head;
1463 GNUNET_free_non_null(cur->dest_url);
1467 GNUNET_SERVER_mst_destroy (cs->msgtok);
1468 GNUNET_free_non_null (cs->addr_in);
1469 GNUNET_free_non_null (cs->addr_out);
1475 * Exit point from the plugin.
1478 libgnunet_plugin_transport_http_done (void *cls)
1480 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
1481 struct Plugin *plugin = api->cls;
1484 GNUNET_assert(cls !=NULL);
1485 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unloading http plugin...\n");
1487 if ( plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1489 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v4);
1490 plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;
1493 if ( plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1495 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v6);
1496 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1499 if ( plugin->http_server_task_send != GNUNET_SCHEDULER_NO_TASK)
1501 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_send);
1502 plugin->http_server_task_send = GNUNET_SCHEDULER_NO_TASK;
1505 if (plugin->http_server_daemon_v4 != NULL)
1507 MHD_stop_daemon (plugin->http_server_daemon_v4);
1508 plugin->http_server_daemon_v4 = NULL;
1510 if (plugin->http_server_daemon_v6 != NULL)
1512 MHD_stop_daemon (plugin->http_server_daemon_v6);
1513 plugin->http_server_daemon_v6 = NULL;
1516 /* free all sessions */
1517 GNUNET_CONTAINER_multihashmap_iterate (plugin->sessions,
1518 &hashMapFreeIterator,
1521 GNUNET_CONTAINER_multihashmap_destroy (plugin->sessions);
1523 mret = curl_multi_cleanup(plugin->multi_handle);
1524 if ( CURLM_OK != mret)
1525 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed");
1527 GNUNET_free (plugin);
1534 * Entry point for the plugin.
1537 libgnunet_plugin_transport_http_init (void *cls)
1539 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
1540 struct Plugin *plugin;
1541 struct GNUNET_TRANSPORT_PluginFunctions *api;
1542 struct GNUNET_TIME_Relative gn_timeout;
1543 long long unsigned int port;
1545 GNUNET_assert(cls !=NULL);
1546 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting http plugin...\n");
1548 plugin = GNUNET_malloc (sizeof (struct Plugin));
1550 plugin->sessions = NULL;
1551 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
1553 api->send = &http_plugin_send;
1554 api->disconnect = &http_plugin_disconnect;
1555 api->address_pretty_printer = &http_plugin_address_pretty_printer;
1556 api->check_address = &http_plugin_address_suggested;
1557 api->address_to_string = &http_plugin_address_to_string;
1559 /* Hashing our identity to use it in URLs */
1560 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &plugin->my_ascii_hash_ident);
1562 /* Reading port number from config file */
1564 GNUNET_CONFIGURATION_get_value_number (env->cfg,
1570 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1573 ("Require valid port number for transport plugin `%s' in configuration!\n"),
1575 libgnunet_plugin_transport_http_done (api);
1578 GNUNET_assert ((port > 0) && (port <= 65535));
1579 plugin->port_inbound = port;
1580 gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
1581 if ((plugin->http_server_daemon_v4 == NULL) && (plugin->http_server_daemon_v6 == NULL) && (port != 0))
1583 plugin->http_server_daemon_v6 = MHD_start_daemon (MHD_USE_IPv6,
1585 &acceptPolicyCallback,
1586 plugin , &accessHandlerCallback, plugin,
1587 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1588 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1589 MHD_OPTION_CONNECTION_TIMEOUT, (gn_timeout.value / 1000),
1590 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1591 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1593 plugin->http_server_daemon_v4 = MHD_start_daemon (MHD_NO_FLAG,
1595 &acceptPolicyCallback,
1596 plugin , &accessHandlerCallback, plugin,
1597 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1598 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1599 MHD_OPTION_CONNECTION_TIMEOUT, (gn_timeout.value / 1000),
1600 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1601 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1604 if (plugin->http_server_daemon_v4 != NULL)
1605 plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
1606 if (plugin->http_server_daemon_v6 != NULL)
1607 plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
1609 if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1610 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 on port %u\n",port);
1611 else if (plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1612 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 on port %u\n",port);
1615 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No MHD was started, transport plugin not functional!\n");
1616 libgnunet_plugin_transport_http_done (api);
1620 /* Initializing cURL */
1621 plugin->multi_handle = curl_multi_init();
1622 if ( NULL == plugin->multi_handle )
1624 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1626 _("Could not initialize curl multi handle, failed to start http plugin!\n"),
1628 libgnunet_plugin_transport_http_done (api);
1632 plugin->sessions = GNUNET_CONTAINER_multihashmap_create (10);
1633 GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
1638 /* end of plugin_transport_http.c */