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 * At what time did we reset last_received last?
206 struct GNUNET_TIME_Absolute last_quota_update;
209 * How many bytes have we received since the "last_quota_update"
212 uint64_t last_received;
215 * Number of bytes per ms that this peer is allowed
221 * Is there a HTTP/PUT in progress?
223 int is_put_in_progress;
226 * Is the http request invalid?
233 struct GNUNET_CRYPTO_HashAsciiEncoded hash;
236 * Head of dll used to store outbound messages
238 struct HTTP_Message * pending_outbound_msg_head;
241 * Tail of dll used to store outbound messages
243 struct HTTP_Message * pending_outbound_msg_tail;
248 struct HTTP_inbound_transmission pending_inbound_msg;
251 * curl handle for outbound transmissions
256 * Message tokenizer for incoming data
258 struct GNUNET_SERVER_MessageStreamTokenizer * msgtok;
262 * Encapsulation of all of the state of the plugin.
269 struct GNUNET_TRANSPORT_PluginEnvironment *env;
271 unsigned int port_inbound;
274 * Hashmap for all existing sessions.
276 struct GNUNET_CONTAINER_MultiHashMap *sessions;
279 * Daemon for listening for new IPv4 connections.
281 struct MHD_Daemon *http_server_daemon_v4;
284 * Daemon for listening for new IPv6connections.
286 struct MHD_Daemon *http_server_daemon_v6;
289 * Our primary task for http daemon handling IPv4 connections
291 GNUNET_SCHEDULER_TaskIdentifier http_server_task_v4;
294 * Our primary task for http daemon handling IPv6 connections
296 GNUNET_SCHEDULER_TaskIdentifier http_server_task_v6;
299 * The task sending data
301 GNUNET_SCHEDULER_TaskIdentifier http_server_task_send;
306 CURLM * multi_handle;
309 * Our ASCII encoded, hashed peer identity
310 * This string is used to distinguish between connections and is added to the urls
312 struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
316 * Create a new session
318 * @param addr_in address the peer is using inbound
319 * @param addr_out address the peer is using outbound
320 * @param peer identity
321 * @return created session object
323 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)
325 struct Plugin *plugin = cls;
326 struct Session * ses = GNUNET_malloc ( sizeof( struct Session) );
328 GNUNET_assert(cls !=NULL);
331 ses->addr_in = GNUNET_malloc (addrlen_in);
332 ses->addr_in_len = addrlen_in;
333 memcpy(ses->addr_in,addr_in,addrlen_in);
336 if (addrlen_out != 0)
338 ses->addr_out = GNUNET_malloc (addrlen_out);
339 ses->addr_out_len = addrlen_out;
340 memcpy(ses->addr_out,addr_out,addrlen_out);
342 ses->plugin = plugin;
343 memcpy(&ses->partner, peer, sizeof (struct GNUNET_PeerIdentity));
344 GNUNET_CRYPTO_hash_to_enc(&ses->partner.hashPubKey,&(ses->hash));
345 ses->pending_inbound_msg.bytes_recv = 0;
351 * Callback called by MHD when a connection is terminated
353 static void requestCompletedCallback (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
357 cs = *httpSessionCache;
360 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection from peer `%s' was terminated\n",GNUNET_i2s(&cs->partner));
361 /* session set to inactive */
362 cs->is_put_in_progress = GNUNET_NO;
363 cs->is_bad_request = GNUNET_NO;
367 static void messageTokenizerCallback (void *cls,
369 const struct GNUNET_MessageHeader *message)
371 struct Session * cs = cls;
372 GNUNET_assert(cs != NULL);
374 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
375 "Received message with type %u and size %u from `%s'\n",
376 ntohs(message->type),
377 ntohs(message->size),
378 GNUNET_i2s(&(cs->partner)));
379 cs->plugin->env->receive(cs->plugin->env->cls,
386 * Check if ip is allowed to connect.
389 acceptPolicyCallback (void *cls,
390 const struct sockaddr *addr, socklen_t addr_len)
393 struct Plugin *plugin = cls;
395 /* Every connection is accepted, nothing more to do here */
400 * Process GET or PUT request received via MHD. For
401 * GET, queue response that will send back our pending
402 * messages. For PUT, process incoming data and send
403 * to GNUnet core. In either case, check if a session
404 * already exists and create a new one if not.
407 accessHandlerCallback (void *cls,
408 struct MHD_Connection *session,
412 const char *upload_data,
413 size_t * upload_data_size, void **httpSessionCache)
415 struct Plugin *plugin = cls;
416 struct MHD_Response *response;
418 const union MHD_ConnectionInfo * conn_info;
419 struct sockaddr_in *addrin;
420 struct sockaddr_in6 *addrin6;
421 char address[INET6_ADDRSTRLEN+14];
422 struct GNUNET_PeerIdentity pi_in;
424 int send_error_to_client;
425 struct IPv4HttpAddress ipv4addr;
426 struct IPv6HttpAddress ipv6addr;
428 GNUNET_assert(cls !=NULL);
429 send_error_to_client = GNUNET_NO;
431 if ( NULL == *httpSessionCache)
433 /* check url for peer identity */
434 res = GNUNET_CRYPTO_hash_from_string ( &url[1], &(pi_in.hashPubKey));
435 if ( GNUNET_SYSERR == res )
437 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
438 res = MHD_queue_response (session, MHD_HTTP_NOT_FOUND, response);
439 MHD_destroy_response (response);
441 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");
443 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
447 conn_info = MHD_get_connection_info(session, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
448 /* Incoming IPv4 connection */
449 if ( AF_INET == conn_info->client_addr->sin_family)
451 addrin = conn_info->client_addr;
452 inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
453 memcpy(&ipv4addr.ipv4_addr,&(addrin->sin_addr),sizeof(struct in_addr));
454 ipv4addr.u_port = addrin->sin_port;
456 /* Incoming IPv6 connection */
457 if ( AF_INET6 == conn_info->client_addr->sin_family)
459 addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
460 inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
461 memcpy(&ipv6addr.ipv6_addr,&(addrin6->sin6_addr),sizeof(struct in_addr));
462 ipv6addr.u6_port = addrin6->sin6_port;
464 /* find existing session for address */
465 cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &pi_in.hashPubKey);
466 /* no existing session, create a new one*/
469 /* create new session object */
470 if ( AF_INET6 == conn_info->client_addr->sin_family)
471 cs = create_session(plugin, (char *) &ipv6addr, sizeof(struct IPv6HttpAddress),NULL, 0, &pi_in);
472 if ( AF_INET == conn_info->client_addr->sin_family)
473 cs = create_session(plugin, (char *) &ipv4addr, sizeof(struct IPv4HttpAddress),NULL, 0, &pi_in);
475 /* Insert session into hashmap */
476 GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
477 &cs->partner.hashPubKey,
479 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
481 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"New Session for peer `%s' inserted\n", GNUNET_i2s(&cs->partner));
484 /* Set closure and update current session*/
485 if (*httpSessionCache == NULL)
487 *httpSessionCache = cs;
488 /* Updating session */
490 memcpy(cs->addr_inbound,conn_info->client_addr, sizeof(struct sockaddr_in));
491 if ( AF_INET == cs->addr_inbound->sin_family)
493 GNUNET_asprintf(&cs->addr_inbound_str,"%s:%u",address,ntohs(cs->addr_inbound->sin_port));
496 if ( AF_INET6 == cs->addr_inbound->sin_family)
498 GNUNET_asprintf(&cs->addr_inbound_str,"[%s]:%u",address,ntohs(cs->addr_inbound->sin_port));
502 if (cs->msgtok==NULL)
503 cs->msgtok = GNUNET_SERVER_mst_create (GNUNET_SERVER_MAX_MESSAGE_SIZE, &messageTokenizerCallback, cs);
505 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Daemon has new an incoming `%s' request from peer `%s'\n",method, GNUNET_i2s(&cs->partner));
509 cs = *httpSessionCache;
511 /* Is it a PUT or a GET request */
512 if (0 == strcmp (MHD_HTTP_METHOD_PUT, method))
515 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_NO))
517 if (cs->pending_inbound_msg.bytes_recv !=0 )
519 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
520 _("Incoming message from peer `%s', while existing message with %u bytes was not forwarded to transport'\n"),
521 GNUNET_i2s(&cs->partner), cs->pending_inbound_msg.bytes_recv);
522 cs->pending_inbound_msg.bytes_recv = 0;
525 cs->is_put_in_progress = GNUNET_YES;
526 cs->is_bad_request = GNUNET_NO;
530 if ((*upload_data_size > 0) && (cs->is_bad_request != GNUNET_YES))
532 if (*upload_data_size + cs->pending_inbound_msg.bytes_recv <= GNUNET_SERVER_MAX_MESSAGE_SIZE)
534 /* copy uploaded data to buffer */
536 res = GNUNET_SERVER_mst_receive(cs->msgtok, cs, upload_data,*upload_data_size, GNUNET_YES, GNUNET_NO);
537 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"%u bytes forwarded to MST: result: %u\n",*upload_data_size, res);
538 cs->pending_inbound_msg.bytes_recv += *upload_data_size;
539 *upload_data_size = 0;
544 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);
545 cs->is_bad_request = GNUNET_YES;
546 /* (*upload_data_size) bytes not processed */
551 if ((cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_YES))
553 *upload_data_size = 0;
554 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
555 res = MHD_queue_response (session, MHD_HTTP_REQUEST_ENTITY_TOO_LARGE, response);
558 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 413 Request Entity Too Large as PUT Response\n");
559 cs->is_bad_request = GNUNET_NO;
560 cs->is_put_in_progress =GNUNET_NO;
561 cs->pending_inbound_msg.bytes_recv = 0;
563 MHD_destroy_response (response);
567 /* Transmission of all data complete */
568 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_NO))
570 send_error_to_client = GNUNET_YES;
571 if (cs->pending_inbound_msg.bytes_recv >= sizeof (struct GNUNET_MessageHeader))
572 send_error_to_client = GNUNET_NO;
574 if (send_error_to_client == GNUNET_NO)
576 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
577 res = MHD_queue_response (session, MHD_HTTP_OK, response);
578 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 200 OK as PUT Response\n",HTTP_PUT_RESPONSE, strlen (HTTP_PUT_RESPONSE), res );
579 MHD_destroy_response (response);
583 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
584 res = MHD_queue_response (session, MHD_HTTP_BAD_REQUEST, response);
585 MHD_destroy_response (response);
586 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 400 BAD REQUEST as PUT Response\n");
588 cs->is_put_in_progress = GNUNET_NO;
589 cs->is_bad_request = GNUNET_NO;
590 cs->pending_inbound_msg.bytes_recv = 0;
594 if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
596 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Got GET Request\n");
597 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"URL: `%s'\n",url);
598 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
599 res = MHD_queue_response (session, MHD_HTTP_OK, response);
600 MHD_destroy_response (response);
608 * Call MHD to process pending ipv4 requests and then go back
609 * and schedule the next run.
611 static void http_server_daemon_v4_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
613 * Call MHD to process pending ipv6 requests and then go back
614 * and schedule the next run.
616 static void http_server_daemon_v6_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
619 * Function that queries MHD's select sets and
620 * starts the task waiting for them.
622 static GNUNET_SCHEDULER_TaskIdentifier
623 http_server_daemon_prepare (void * cls, struct MHD_Daemon *daemon_handle)
625 struct Plugin *plugin = cls;
626 GNUNET_SCHEDULER_TaskIdentifier ret;
630 struct GNUNET_NETWORK_FDSet *wrs;
631 struct GNUNET_NETWORK_FDSet *wws;
632 struct GNUNET_NETWORK_FDSet *wes;
634 unsigned long long timeout;
636 struct GNUNET_TIME_Relative tv;
638 GNUNET_assert(cls !=NULL);
639 ret = GNUNET_SCHEDULER_NO_TASK;
643 wrs = GNUNET_NETWORK_fdset_create ();
644 wes = GNUNET_NETWORK_fdset_create ();
645 wws = GNUNET_NETWORK_fdset_create ();
647 GNUNET_assert (MHD_YES ==
648 MHD_get_fdset (daemon_handle,
653 haveto = MHD_get_timeout (daemon_handle, &timeout);
654 if (haveto == MHD_YES)
655 tv.value = (uint64_t) timeout;
657 tv = GNUNET_TIME_UNIT_FOREVER_REL;
658 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
659 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
660 GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
661 if (daemon_handle == plugin->http_server_daemon_v4)
663 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
664 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
665 GNUNET_SCHEDULER_NO_TASK,
669 &http_server_daemon_v4_run,
672 if (daemon_handle == plugin->http_server_daemon_v6)
674 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
675 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
676 GNUNET_SCHEDULER_NO_TASK,
680 &http_server_daemon_v6_run,
683 GNUNET_NETWORK_fdset_destroy (wrs);
684 GNUNET_NETWORK_fdset_destroy (wws);
685 GNUNET_NETWORK_fdset_destroy (wes);
690 * Call MHD to process pending requests and then go back
691 * and schedule the next run.
693 static void http_server_daemon_v4_run (void *cls,
694 const struct GNUNET_SCHEDULER_TaskContext *tc)
696 struct Plugin *plugin = cls;
698 GNUNET_assert(cls !=NULL);
699 if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
700 plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;
702 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
705 GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v4));
706 plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
712 * Call MHD to process pending requests and then go back
713 * and schedule the next run.
715 static void http_server_daemon_v6_run (void *cls,
716 const struct GNUNET_SCHEDULER_TaskContext *tc)
718 struct Plugin *plugin = cls;
720 GNUNET_assert(cls !=NULL);
721 if (plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
722 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
724 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
727 GNUNET_assert (MHD_YES == MHD_run (plugin->http_server_daemon_v6));
728 plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
733 * Removes a message from the linked list of messages
734 * @param ses session to remove message from
735 * @param msg message to remove
736 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
739 static int remove_http_message(struct Session * ses, struct HTTP_Message * msg)
741 GNUNET_CONTAINER_DLL_remove(ses->pending_outbound_msg_head,ses->pending_outbound_msg_tail,msg);
742 GNUNET_free (msg->dest_url);
748 static size_t header_function( void *ptr, size_t size, size_t nmemb, void *stream)
751 size_t len = size * nmemb;
754 if ((size * nmemb) < SIZE_MAX)
755 tmp = GNUNET_malloc (len+1);
757 if ((tmp != NULL) && (len > 0))
762 if (tmp[len-2] == 13)
766 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s'\n",tmp);
776 * Callback method used with libcurl
777 * Method is called when libcurl needs to read data during sending
778 * @param stream pointer where to write data
779 * @param size size of an individual element
780 * @param nmemb count of elements that can be written to the buffer
781 * @param ptr source pointer, passed to the libcurl handle
782 * @return bytes written to stream
784 static size_t send_read_callback(void *stream, size_t size, size_t nmemb, void *ptr)
786 struct Session * ses = ptr;
787 struct HTTP_Message * msg = ses->pending_outbound_msg_tail;
792 if (( msg->pos < msg->size))
794 /* data fit in buffer */
795 if ((msg->size - msg->pos) <= (size * nmemb))
797 len = (msg->size - msg->pos);
798 memcpy(stream, &msg->buf[msg->pos], len);
805 memcpy(stream, &msg->buf[msg->pos], len);
810 /* no data to send */
819 * Callback method used with libcurl
820 * Method is called when libcurl needs to write data during sending
821 * @param stream pointer where to write data
822 * @param size size of an individual element
823 * @param nmemb count of elements that can be written to the buffer
824 * @param ptr destination pointer, passed to the libcurl handle
825 * @return bytes read from stream
827 static size_t send_write_callback( void *stream, size_t size, size_t nmemb, void *ptr)
831 if ((size * nmemb) < SIZE_MAX)
832 data = GNUNET_malloc(size*nmemb +1);
835 memcpy( data, stream, size*nmemb);
836 data[size*nmemb] = '\0';
839 return (size * nmemb);
844 * Function setting up file descriptors and scheduling task to run
845 * @param ses session to send data to
846 * @return bytes sent to peer
848 static size_t send_prepare(void *cls, struct Session* ses );
851 * Function setting up curl handle and selecting message to send
852 * @param ses session to send data to
853 * @return bytes sent to peer
855 static ssize_t send_select_init (void *cls, struct Session* ses )
857 struct Plugin *plugin = cls;
860 struct HTTP_Message * msg;
862 GNUNET_assert(cls !=NULL);
863 if ( NULL == ses->curl_handle)
864 ses->curl_handle = curl_easy_init();
865 if( NULL == ses->curl_handle)
867 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Getting cURL handle failed\n");
870 GNUNET_assert (NULL != ses->pending_outbound_msg_tail);
871 msg = ses->pending_outbound_msg_tail;
874 curl_easy_setopt(ses->curl_handle, CURLOPT_VERBOSE, 1L);
876 curl_easy_setopt(ses->curl_handle, CURLOPT_URL, msg->dest_url);
877 curl_easy_setopt(ses->curl_handle, CURLOPT_PUT, 1L);
878 curl_easy_setopt(ses->curl_handle, CURLOPT_HEADERFUNCTION, &header_function);
879 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEHEADER, ses);
880 curl_easy_setopt(ses->curl_handle, CURLOPT_READFUNCTION, send_read_callback);
881 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
882 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEFUNCTION, send_write_callback);
883 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
884 curl_easy_setopt(ses->curl_handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t) msg->size);
885 curl_easy_setopt(ses->curl_handle, CURLOPT_TIMEOUT, GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT);
886 GNUNET_assert (CURLE_OK == curl_easy_setopt(ses->curl_handle, CURLOPT_PRIVATE, ses));
887 curl_easy_setopt(ses->curl_handle, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
888 curl_easy_setopt(ses->curl_handle, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
890 mret = curl_multi_add_handle(plugin->multi_handle, ses->curl_handle);
891 if (mret != CURLM_OK)
893 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
894 _("%s failed at %s:%d: `%s'\n"),
895 "curl_multi_add_handle", __FILE__, __LINE__,
896 curl_multi_strerror (mret));
899 bytes_sent = send_prepare (plugin, ses );
903 static void send_execute (void *cls,
904 const struct GNUNET_SCHEDULER_TaskContext *tc)
906 struct Plugin *plugin = cls;
907 static unsigned int handles_last_run;
911 struct Session * cs = NULL;
914 GNUNET_assert(cls !=NULL);
915 plugin->http_server_task_send = GNUNET_SCHEDULER_NO_TASK;
916 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
922 mret = curl_multi_perform (plugin->multi_handle, &running);
923 if (running < handles_last_run)
928 msg = curl_multi_info_read (plugin->multi_handle, &running);
929 GNUNET_break (msg != NULL);
932 /* get session for affected curl handle */
933 GNUNET_assert ( msg->easy_handle != NULL );
934 curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &cs);
935 GNUNET_assert ( cs != NULL );
936 GNUNET_assert ( cs->pending_outbound_msg_tail != NULL );
941 if ( (msg->data.result != CURLE_OK) &&
942 (msg->data.result != CURLE_GOT_NOTHING) )
944 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
945 _("%s failed for `%s' at %s:%d: `%s'\n"),
946 "curl_multi_perform",
947 GNUNET_i2s(&cs->partner),
950 curl_easy_strerror (msg->data.result));
951 /* sending msg failed*/
952 if (( NULL != cs->pending_outbound_msg_tail) && ( NULL != cs->pending_outbound_msg_tail->transmit_cont))
953 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
957 GNUNET_assert (CURLE_OK == curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result));
958 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
959 "Send to peer `%s' completed with code %u\n", GNUNET_i2s(&cs->partner), http_result );
961 curl_easy_cleanup(cs->curl_handle);
962 cs->curl_handle=NULL;
964 /* Calling transmit continuation */
965 if (( NULL != cs->pending_outbound_msg_tail) && (NULL != cs->pending_outbound_msg_tail->transmit_cont))
967 /* HTTP 1xx : Last message before here was informational */
968 if ((http_result >=100) && (http_result < 200))
969 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_OK);
970 /* HTTP 2xx: successful operations */
971 if ((http_result >=200) && (http_result < 300))
972 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_OK);
973 /* HTTP 3xx..5xx: error */
974 if ((http_result >=300) && (http_result < 600))
975 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
979 if (GNUNET_OK != remove_http_message(cs, cs->pending_outbound_msg_tail))
980 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Message could not be removed from session `%s'", GNUNET_i2s(&cs->partner));
981 /* send pending messages */
982 if (cs->pending_outbound_msg_tail!= NULL)
984 send_select_init (plugin, cs);
992 while ( (running > 0) );
994 handles_last_run = running;
996 while (mret == CURLM_CALL_MULTI_PERFORM);
997 send_prepare(plugin, cls);
1002 * Function setting up file descriptors and scheduling task to run
1003 * @param ses session to send data to
1004 * @return bytes sent to peer
1006 static size_t send_prepare(void *cls, struct Session* ses )
1008 struct Plugin *plugin = cls;
1013 struct GNUNET_NETWORK_FDSet *grs;
1014 struct GNUNET_NETWORK_FDSet *gws;
1018 GNUNET_assert(cls !=NULL);
1023 mret = curl_multi_fdset (plugin->multi_handle, &rs, &ws, &es, &max);
1024 if (mret != CURLM_OK)
1026 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1027 _("%s failed at %s:%d: `%s'\n"),
1028 "curl_multi_fdset", __FILE__, __LINE__,
1029 curl_multi_strerror (mret));
1032 mret = curl_multi_timeout (plugin->multi_handle, &to);
1033 if (mret != CURLM_OK)
1035 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1036 _("%s failed at %s:%d: `%s'\n"),
1037 "curl_multi_timeout", __FILE__, __LINE__,
1038 curl_multi_strerror (mret));
1042 grs = GNUNET_NETWORK_fdset_create ();
1043 gws = GNUNET_NETWORK_fdset_create ();
1044 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
1045 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
1046 plugin->http_server_task_send = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1047 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1048 GNUNET_SCHEDULER_NO_TASK,
1049 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),
1054 GNUNET_NETWORK_fdset_destroy (gws);
1055 GNUNET_NETWORK_fdset_destroy (grs);
1057 /* FIXME: return bytes REALLY sent */
1062 * Function that can be used by the transport service to transmit
1063 * a message using the plugin.
1065 * @param cls closure
1066 * @param target who should receive this message
1067 * @param priority how important is the message
1068 * @param msgbuf the message to transmit
1069 * @param msgbuf_size number of bytes in 'msgbuf'
1070 * @param to when should we time out
1071 * @param session which session must be used (or NULL for "any")
1072 * @param addr the address to use (can be NULL if the plugin
1073 * is "on its own" (i.e. re-use existing TCP connection))
1074 * @param addrlen length of the address in bytes
1075 * @param force_address GNUNET_YES if the plugin MUST use the given address,
1076 * otherwise the plugin may use other addresses or
1077 * existing connections (if available)
1078 * @param cont continuation to call once the message has
1079 * been transmitted (or if the transport is ready
1080 * for the next transmission call; or if the
1081 * peer disconnected...)
1082 * @param cont_cls closure for cont
1083 * @return number of bytes used (on the physical network, with overheads);
1084 * -1 on hard errors (i.e. address invalid); 0 is a legal value
1085 * and does NOT mean that the message was not transmitted (DV)
1088 http_plugin_send (void *cls,
1089 const struct GNUNET_PeerIdentity *target,
1092 unsigned int priority,
1093 struct GNUNET_TIME_Relative to,
1094 struct Session *session,
1098 GNUNET_TRANSPORT_TransmitContinuation cont,
1101 struct Plugin *plugin = cls;
1105 struct HTTP_Message *msg;
1108 GNUNET_assert(cls !=NULL);
1112 cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &target->hashPubKey);
1114 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1115 "Session `%s' found\n", GNUNET_i2s(target));
1119 cs = create_session(plugin, (char *) addr, addrlen, NULL, 0, target);
1120 res = GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
1121 &cs->partner.hashPubKey,
1123 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1124 if (res == GNUNET_OK)
1125 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1126 "New Session `%s' inserted\n", GNUNET_i2s(target));
1129 GNUNET_assert ((addr!=NULL) && (addrlen != 0));
1130 if (addrlen == (sizeof (struct IPv4HttpAddress)))
1132 address = GNUNET_malloc(INET_ADDRSTRLEN + 1);
1133 inet_ntop(AF_INET, &((struct IPv4HttpAddress *) addr)->ipv4_addr,address,INET_ADDRSTRLEN);
1134 GNUNET_asprintf (&url,
1137 ntohs(((struct IPv4HttpAddress *) addr)->u_port),
1138 (char *) (&plugin->my_ascii_hash_ident));
1139 GNUNET_free(address);
1141 else if (addrlen == (sizeof (struct IPv6HttpAddress)))
1143 address = GNUNET_malloc(INET6_ADDRSTRLEN + 1);
1144 inet_ntop(AF_INET6, &((struct IPv6HttpAddress *) addr)->ipv6_addr,address,INET6_ADDRSTRLEN);
1145 GNUNET_asprintf(&url,
1148 ntohs(((struct IPv6HttpAddress *) addr)->u6_port),
1149 (char *) (&plugin->my_ascii_hash_ident));
1150 GNUNET_free(address);
1153 /* setting up message */
1154 msg = GNUNET_malloc (sizeof (struct HTTP_Message) + msgbuf_size);
1156 msg->size = msgbuf_size;
1158 msg->buf = (char *) &msg[1];
1159 msg->dest_url = url;
1160 msg->transmit_cont = cont;
1161 msg->transmit_cont_cls = cont_cls;
1162 memcpy (msg->buf,msgbuf, msgbuf_size);
1163 /* insert created message in double linked list of pending messages */
1164 GNUNET_CONTAINER_DLL_insert (cs->pending_outbound_msg_head, cs->pending_outbound_msg_tail, msg);
1166 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));
1167 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: url `%s'\n",url);
1168 if (msg == cs->pending_outbound_msg_tail)
1170 return send_select_init (plugin, cs);
1178 * Function that can be used to force the plugin to disconnect
1179 * from the given peer and cancel all previous transmissions
1180 * (and their continuationc).
1182 * @param cls closure
1183 * @param target peer from which to disconnect
1186 http_plugin_disconnect (void *cls,
1187 const struct GNUNET_PeerIdentity *target)
1189 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: http_plugin_disconnect\n");
1190 // struct Plugin *plugin = cls;
1196 * Convert the transports address to a nice, human-readable
1199 * @param cls closure
1200 * @param type name of the transport that generated the address
1201 * @param addr one of the addresses of the host, NULL for the last address
1202 * the specific address format depends on the transport
1203 * @param addrlen length of the address
1204 * @param numeric should (IP) addresses be displayed in numeric form?
1205 * @param timeout after how long should we give up?
1206 * @param asc function to call on each string
1207 * @param asc_cls closure for asc
1210 http_plugin_address_pretty_printer (void *cls,
1215 struct GNUNET_TIME_Relative timeout,
1216 GNUNET_TRANSPORT_AddressStringCallback
1219 const struct IPv4HttpAddress *t4;
1220 const struct IPv6HttpAddress *t6;
1221 struct sockaddr_in a4;
1222 struct sockaddr_in6 a6;
1228 GNUNET_assert(cls !=NULL);
1229 if (addrlen == sizeof (struct IPv6HttpAddress))
1231 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1233 a6.sin6_addr = t6->ipv6_addr;
1234 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1235 port = ntohs(t6->u6_port);
1237 else if (addrlen == sizeof (struct IPv4HttpAddress))
1239 address = GNUNET_malloc (INET_ADDRSTRLEN);
1241 a4.sin_addr.s_addr = t4->ipv4_addr;
1242 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1243 port = ntohs(t4->u_port);
1247 /* invalid address */
1248 GNUNET_break_op (0);
1249 asc (asc_cls, NULL);
1252 res = GNUNET_asprintf(&ret,"http://%s:%u/",address,port);
1253 GNUNET_free (address);
1254 GNUNET_assert(res != 0);
1262 * Another peer has suggested an address for this
1263 * peer and transport plugin. Check that this could be a valid
1264 * address. If so, consider adding it to the list
1267 * @param cls closure
1268 * @param addr pointer to the address
1269 * @param addrlen length of addr
1270 * @return GNUNET_OK if this is a plausible address for this peer
1274 http_plugin_address_suggested (void *cls,
1275 void *addr, size_t addrlen)
1277 struct Plugin *plugin = cls;
1278 struct IPv4HttpAddress *v4;
1279 struct IPv6HttpAddress *v6;
1282 GNUNET_assert(cls !=NULL);
1283 if ((addrlen != sizeof (struct IPv4HttpAddress)) &&
1284 (addrlen != sizeof (struct IPv6HttpAddress)))
1286 return GNUNET_SYSERR;
1288 if (addrlen == sizeof (struct IPv4HttpAddress))
1290 v4 = (struct IPv4HttpAddress *) addr;
1291 if (INADDR_LOOPBACK == ntohl(v4->ipv4_addr))
1293 return GNUNET_SYSERR;
1295 port = ntohs (v4->u_port);
1296 if (port != plugin->port_inbound)
1298 return GNUNET_SYSERR;
1303 v6 = (struct IPv6HttpAddress *) addr;
1304 if (IN6_IS_ADDR_LINKLOCAL (&v6->ipv6_addr))
1306 return GNUNET_SYSERR;
1308 port = ntohs (v6->u6_port);
1309 if (port != plugin->port_inbound)
1311 return GNUNET_SYSERR;
1321 * Function called for a quick conversion of the binary address to
1322 * a numeric address. Note that the caller must not free the
1323 * address and that the next call to this function is allowed
1324 * to override the address again.
1326 * @param cls closure
1327 * @param addr binary address
1328 * @param addrlen length of the address
1329 * @return string representing the same address
1332 http_plugin_address_to_string (void *cls,
1336 const struct IPv4HttpAddress *t4;
1337 const struct IPv6HttpAddress *t6;
1338 struct sockaddr_in a4;
1339 struct sockaddr_in6 a6;
1345 GNUNET_assert(cls !=NULL);
1346 if (addrlen == sizeof (struct IPv6HttpAddress))
1348 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1350 a6.sin6_addr = t6->ipv6_addr;
1351 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1352 port = ntohs(t6->u6_port);
1354 else if (addrlen == sizeof (struct IPv4HttpAddress))
1356 address = GNUNET_malloc (INET_ADDRSTRLEN);
1358 a4.sin_addr.s_addr = t4->ipv4_addr;
1359 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1360 port = ntohs(t4->u_port);
1364 /* invalid address */
1367 res = GNUNET_asprintf(&ret,"%s:%u",address,port);
1368 GNUNET_free (address);
1369 GNUNET_assert(res != 0);
1374 * Add the IP of our network interface to the list of
1375 * our external IP addresses.
1377 * @param cls the 'struct Plugin*'
1378 * @param name name of the interface
1379 * @param isDefault do we think this may be our default interface
1380 * @param addr address of the interface
1381 * @param addrlen number of bytes in addr
1382 * @return GNUNET_OK to continue iterating
1385 process_interfaces (void *cls,
1388 const struct sockaddr *addr, socklen_t addrlen)
1390 struct Plugin *plugin = cls;
1391 struct IPv4HttpAddress t4;
1392 struct IPv6HttpAddress t6;
1397 GNUNET_assert(cls !=NULL);
1398 af = addr->sa_family;
1401 if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
1403 /* skip loopback addresses */
1406 t4.ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
1407 t4.u_port = htons (plugin->port_inbound);
1411 else if (af == AF_INET6)
1413 if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
1415 /* skip link local addresses */
1418 if (IN6_IS_ADDR_LOOPBACK (&((struct sockaddr_in6 *) addr)->sin6_addr))
1420 /* skip loopback addresses */
1423 memcpy (&t6.ipv6_addr,
1424 &((struct sockaddr_in6 *) addr)->sin6_addr,
1425 sizeof (struct in6_addr));
1426 t6.u6_port = htons (plugin->port_inbound);
1435 plugin->env->notify_address(plugin->env->cls,"http",arg, args, GNUNET_TIME_UNIT_FOREVER_REL);
1439 int hashMapFreeIterator (void *cls, const GNUNET_HashCode *key, void *value)
1441 struct Session * cs = value;
1443 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing session for peer `%s'\n",GNUNET_i2s(&cs->partner));
1445 /* freeing messages */
1446 struct HTTP_Message *cur;
1447 struct HTTP_Message *tmp;
1448 cur = cs->pending_outbound_msg_head;
1453 GNUNET_free_non_null(cur->dest_url);
1457 GNUNET_SERVER_mst_destroy (cs->msgtok);
1458 GNUNET_free_non_null (cs->addr_in);
1459 GNUNET_free_non_null (cs->addr_out);
1465 * Exit point from the plugin.
1468 libgnunet_plugin_transport_http_done (void *cls)
1470 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
1471 struct Plugin *plugin = api->cls;
1474 GNUNET_assert(cls !=NULL);
1475 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unloading http plugin...\n");
1477 if ( plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1479 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v4);
1480 plugin->http_server_task_v4 = GNUNET_SCHEDULER_NO_TASK;
1483 if ( plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1485 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_v6);
1486 plugin->http_server_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1489 if ( plugin->http_server_task_send != GNUNET_SCHEDULER_NO_TASK)
1491 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_server_task_send);
1492 plugin->http_server_task_send = GNUNET_SCHEDULER_NO_TASK;
1495 if (plugin->http_server_daemon_v4 != NULL)
1497 MHD_stop_daemon (plugin->http_server_daemon_v4);
1498 plugin->http_server_daemon_v4 = NULL;
1500 if (plugin->http_server_daemon_v6 != NULL)
1502 MHD_stop_daemon (plugin->http_server_daemon_v6);
1503 plugin->http_server_daemon_v6 = NULL;
1506 /* free all sessions */
1507 GNUNET_CONTAINER_multihashmap_iterate (plugin->sessions,
1508 &hashMapFreeIterator,
1511 GNUNET_CONTAINER_multihashmap_destroy (plugin->sessions);
1513 mret = curl_multi_cleanup(plugin->multi_handle);
1514 if ( CURLM_OK != mret)
1515 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed");
1517 GNUNET_free (plugin);
1524 * Entry point for the plugin.
1527 libgnunet_plugin_transport_http_init (void *cls)
1529 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
1530 struct Plugin *plugin;
1531 struct GNUNET_TRANSPORT_PluginFunctions *api;
1532 struct GNUNET_TIME_Relative gn_timeout;
1533 long long unsigned int port;
1535 GNUNET_assert(cls !=NULL);
1536 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting http plugin...\n");
1538 plugin = GNUNET_malloc (sizeof (struct Plugin));
1540 plugin->sessions = NULL;
1541 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
1543 api->send = &http_plugin_send;
1544 api->disconnect = &http_plugin_disconnect;
1545 api->address_pretty_printer = &http_plugin_address_pretty_printer;
1546 api->check_address = &http_plugin_address_suggested;
1547 api->address_to_string = &http_plugin_address_to_string;
1549 /* Hashing our identity to use it in URLs */
1550 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &plugin->my_ascii_hash_ident);
1552 /* Reading port number from config file */
1554 GNUNET_CONFIGURATION_get_value_number (env->cfg,
1560 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1563 ("Require valid port number for transport plugin `%s' in configuration!\n"),
1565 libgnunet_plugin_transport_http_done (api);
1568 GNUNET_assert ((port > 0) && (port <= 65535));
1569 plugin->port_inbound = port;
1570 gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
1571 if ((plugin->http_server_daemon_v4 == NULL) && (plugin->http_server_daemon_v6 == NULL) && (port != 0))
1573 plugin->http_server_daemon_v6 = MHD_start_daemon (MHD_USE_IPv6,
1575 &acceptPolicyCallback,
1576 plugin , &accessHandlerCallback, plugin,
1577 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1578 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1579 MHD_OPTION_CONNECTION_TIMEOUT, (gn_timeout.value / 1000),
1580 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1581 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1583 plugin->http_server_daemon_v4 = MHD_start_daemon (MHD_NO_FLAG,
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,
1594 if (plugin->http_server_daemon_v4 != NULL)
1595 plugin->http_server_task_v4 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v4);
1596 if (plugin->http_server_daemon_v6 != NULL)
1597 plugin->http_server_task_v6 = http_server_daemon_prepare (plugin, plugin->http_server_daemon_v6);
1599 if (plugin->http_server_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1600 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 on port %u\n",port);
1601 else if (plugin->http_server_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1602 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 on port %u\n",port);
1605 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No MHD was started, transport plugin not functional!\n");
1606 libgnunet_plugin_transport_http_done (api);
1610 /* Initializing cURL */
1611 plugin->multi_handle = curl_multi_init();
1612 if ( NULL == plugin->multi_handle )
1614 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1616 _("Could not initialize curl multi handle, failed to start http plugin!\n"),
1618 libgnunet_plugin_transport_http_done (api);
1622 plugin->sessions = GNUNET_CONTAINER_multihashmap_create (10);
1623 GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
1628 /* end of plugin_transport_http.c */