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.
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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 * Timeout for a http connect
74 #define HTTP_MESSAGE_INITIAL_BUFFERSIZE GNUNET_SERVER_MAX_MESSAGE_SIZE
78 * Network format for IPv4 addresses.
80 struct IPv4HttpAddress
83 * IPv4 address, in network byte order.
88 * Port number, in network byte order.
96 * Network format for IPv6 addresses.
98 struct IPv6HttpAddress
103 struct in6_addr ipv6_addr;
106 * Port number, in network byte order.
115 * Message to send using http
120 * next 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 * Sender's ip address to distinguish between incoming connections
201 //char * addr_inbound_str;
205 * Sender's ip address specified by transport
207 //struct sockaddr_in * addr_outbound;
210 * Did we initiate the connection (GNUNET_YES) or the other peer (GNUNET_NO)?
215 * Is the connection active (GNUNET_YES) or terminated (GNUNET_NO)?
220 * At what time did we reset last_received last?
222 struct GNUNET_TIME_Absolute last_quota_update;
225 * How many bytes have we received since the "last_quota_update"
228 uint64_t last_received;
231 * Number of bytes per ms that this peer is allowed
237 * Is there a HTTP/PUT in progress?
239 int is_put_in_progress;
242 * Is the http request invalid?
249 struct GNUNET_CRYPTO_HashAsciiEncoded hash;
251 //struct HTTP_Message * pending_outbound_msg;
252 struct HTTP_Message * pending_outbound_msg_head;
253 struct HTTP_Message * pending_outbound_msg_tail;
255 struct HTTP_Message * pending_inbound_msg;
259 struct GNUNET_SERVER_MessageStreamTokenizer * msgtok;
263 * Encapsulation of all of the state of the plugin.
270 struct GNUNET_TRANSPORT_PluginEnvironment *env;
272 unsigned int port_inbound;
275 * Hashmap for all existing sessions.
277 struct GNUNET_CONTAINER_MultiHashMap *sessions;
281 * Daemon for listening for new IPv4 connections.
283 static struct MHD_Daemon *http_daemon_v4;
286 * Daemon for listening for new IPv6connections.
288 static struct MHD_Daemon *http_daemon_v6;
291 * Our primary task for http daemon handling IPv4 connections
293 static GNUNET_SCHEDULER_TaskIdentifier http_task_v4;
296 * Our primary task for http daemon handling IPv6 connections
298 static GNUNET_SCHEDULER_TaskIdentifier http_task_v6;
302 * The task sending data
304 static GNUNET_SCHEDULER_TaskIdentifier http_task_send;
308 * Information about this plugin
310 static struct Plugin *plugin;
315 static CURLM *multi_handle;
318 * Our ASCII encoded, hashed peer identity
319 * This string is used to distinguish between connections and is added to the urls
321 static struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
323 // MW: please document (which timeout is this!?)
324 static struct GNUNET_TIME_Relative timeout;
328 * Create a new session
330 * @param addr_in address the peer is using inbound
331 * @param addr_out address the peer is using outbound
332 * @param peer identity
333 * @return created session object
335 static struct Session * create_session (char * addr_in, size_t addrlen_in, char * addr_out, size_t addrlen_out, const struct GNUNET_PeerIdentity *peer)
337 struct Session * ses = GNUNET_malloc ( sizeof( struct Session) );
341 ses->addr_in = GNUNET_malloc (addrlen_in);
342 ses->addr_in_len = addrlen_in;
343 memcpy(ses->addr_in,addr_in,addrlen_in);
346 if (addrlen_out != 0)
348 ses->addr_out = GNUNET_malloc (addrlen_out);
349 ses->addr_out_len = addrlen_out;
350 memcpy(ses->addr_out,addr_out,addrlen_out);
352 ses->plugin = plugin;
353 memcpy(&ses->partner, peer, sizeof (struct GNUNET_PeerIdentity));
354 GNUNET_CRYPTO_hash_to_enc(&ses->partner.hashPubKey,&(ses->hash));
355 ses->is_active = GNUNET_NO;
356 ses->pending_inbound_msg = GNUNET_malloc( sizeof (struct HTTP_Message));
357 ses->pending_inbound_msg->buf = GNUNET_malloc(GNUNET_SERVER_MAX_MESSAGE_SIZE);
358 ses->pending_inbound_msg->len = GNUNET_SERVER_MAX_MESSAGE_SIZE;
359 ses->pending_inbound_msg->pos = 0;
365 * Callback called by MHD when a connection is terminated
367 static void requestCompletedCallback (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
371 cs = *httpSessionCache;
374 /*GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection from peer `%s' was terminated\n",GNUNET_i2s(&cs->partner));*/
375 /* session set to inactive */
376 cs->is_active = GNUNET_NO;
377 cs->is_put_in_progress = GNUNET_NO;
381 static void messageTokenizerCallback (void *cls,
384 GNUNET_MessageHeader *
387 struct Session * cs = cls;
388 GNUNET_assert(cs != NULL);
390 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
391 "Received message with type %u and size %u from `%s'\n",
392 ntohs(message->type),
393 ntohs(message->size),
394 GNUNET_i2s(&(cs->partner)));
395 plugin->env->receive(plugin->env->cls,
400 /*(char *)cs->addr_in,
405 * Check if ip is allowed to connect.
408 acceptPolicyCallback (void *cls,
409 const struct sockaddr *addr, socklen_t addr_len)
411 /* Every connection is accepted, nothing more to do here */
416 * Process GET or PUT request received via MHD. For
417 * GET, queue response that will send back our pending
418 * messages. For PUT, process incoming data and send
419 * to GNUnet core. In either case, check if a session
420 * already exists and create a new one if not.
423 accessHandlerCallback (void *cls,
424 struct MHD_Connection *session,
428 const char *upload_data,
429 size_t * upload_data_size, void **httpSessionCache)
431 struct MHD_Response *response;
433 const union MHD_ConnectionInfo * conn_info;
434 struct sockaddr_in *addrin;
435 struct sockaddr_in6 *addrin6;
436 char address[INET6_ADDRSTRLEN+14];
437 struct GNUNET_PeerIdentity pi_in;
439 struct GNUNET_MessageHeader *cur_msg;
440 int send_error_to_client;
441 struct IPv4HttpAddress ipv4addr;
442 struct IPv6HttpAddress ipv6addr;
445 send_error_to_client = GNUNET_NO;
447 if ( NULL == *httpSessionCache)
449 /* check url for peer identity */
450 res = GNUNET_CRYPTO_hash_from_string ( &url[1], &(pi_in.hashPubKey));
451 if ( GNUNET_SYSERR == res )
453 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
454 res = MHD_queue_response (session, MHD_HTTP_NOT_FOUND, response);
455 MHD_destroy_response (response);
457 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");
459 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
463 conn_info = MHD_get_connection_info(session, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
464 /* Incoming IPv4 connection */
465 if ( AF_INET == conn_info->client_addr->sin_family)
467 addrin = conn_info->client_addr;
468 inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
469 memcpy(&ipv4addr.ipv4_addr,&(addrin->sin_addr),sizeof(struct in_addr));
470 ipv4addr.u_port = addrin->sin_port;
472 /* Incoming IPv6 connection */
473 if ( AF_INET6 == conn_info->client_addr->sin_family)
475 addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
476 inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
477 memcpy(&ipv6addr.ipv6_addr,&(addrin6->sin6_addr),sizeof(struct in_addr));
478 ipv6addr.u6_port = addrin6->sin6_port;
480 /* find existing session for address */
481 cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &pi_in.hashPubKey);
482 /* no existing session, create a new one*/
485 /* create new session object */
486 if ( AF_INET6 == conn_info->client_addr->sin_family)
487 cs = create_session((char *) &ipv6addr, sizeof(struct IPv6HttpAddress),NULL, 0, &pi_in);
488 if ( AF_INET == conn_info->client_addr->sin_family)
489 cs = create_session((char *) &ipv4addr, sizeof(struct IPv4HttpAddress),NULL, 0, &pi_in);
491 /* Insert session into hashmap */
492 GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
493 &cs->partner.hashPubKey,
495 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
497 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"New Session for peer `%s' inserted\n", GNUNET_i2s(&cs->partner));
500 /* Set closure and update current session*/
501 if (*httpSessionCache == NULL)
503 *httpSessionCache = cs;
504 /* Updating session */
506 memcpy(cs->addr_inbound,conn_info->client_addr, sizeof(struct sockaddr_in));
507 if ( AF_INET == cs->addr_inbound->sin_family)
509 GNUNET_asprintf(&cs->addr_inbound_str,"%s:%u",address,ntohs(cs->addr_inbound->sin_port));
512 if ( AF_INET6 == cs->addr_inbound->sin_family)
514 GNUNET_asprintf(&cs->addr_inbound_str,"[%s]:%u",address,ntohs(cs->addr_inbound->sin_port));
518 if (cs->msgtok==NULL)
519 cs->msgtok = GNUNET_SERVER_mst_create (GNUNET_SERVER_MAX_MESSAGE_SIZE, &messageTokenizerCallback, cs);
521 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Daemon has new an incoming `%s' request from peer `%s'\n",method, GNUNET_i2s(&cs->partner));
525 cs = *httpSessionCache;
527 /* Is it a PUT or a GET request */
528 if ( 0 == strcmp (MHD_HTTP_METHOD_PUT, method) )
531 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_NO))
533 if (cs->pending_inbound_msg->pos !=0 )
535 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
536 _("Incoming message from peer `%s', while existing message with %u bytes was not forwarded to transport'\n"),
537 GNUNET_i2s(&cs->partner), cs->pending_inbound_msg->pos);
538 cs->pending_inbound_msg->pos = 0;
541 cs->is_put_in_progress = GNUNET_YES;
542 cs->is_bad_request = GNUNET_NO;
543 cs->is_active = GNUNET_YES;
547 if ((*upload_data_size > 0) && (cs->is_bad_request != GNUNET_YES))
549 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))
551 /* copy uploaded data to buffer */
552 memcpy(&cs->pending_inbound_msg->buf[cs->pending_inbound_msg->pos],upload_data,*upload_data_size);
553 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"%u bytes forwarded to MST \n",*upload_data_size);
554 res = GNUNET_SERVER_mst_receive(cs->msgtok, cs, upload_data,*upload_data_size, GNUNET_YES, GNUNET_NO);
555 cs->pending_inbound_msg->pos += *upload_data_size;
556 *upload_data_size = 0;
561 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);
562 cs->is_bad_request = GNUNET_YES;
563 /* (*upload_data_size) bytes not processed */
568 if ((cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_YES))
570 *upload_data_size = 0;
571 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
572 res = MHD_queue_response (session, MHD_HTTP_REQUEST_ENTITY_TOO_LARGE, response);
575 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 413 Request Entity Too Large as PUT Response\n");
576 cs->is_bad_request = GNUNET_NO;
577 cs->is_put_in_progress =GNUNET_NO;
578 cs->pending_inbound_msg->pos = 0;
580 MHD_destroy_response (response);
584 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_NO))
586 send_error_to_client = GNUNET_YES;
588 if (cs->pending_inbound_msg->pos >= sizeof (struct GNUNET_MessageHeader))
590 cur_msg = (struct GNUNET_MessageHeader *) cs->pending_inbound_msg->buf;
591 //res = GNUNET_SERVER_mst_receive(cs->msgtok, cs, cs->pending_inbound_msg->buf,cs->pending_inbound_msg->pos, GNUNET_YES, GNUNET_NO);
593 if ((res != GNUNET_SYSERR) && (res != GNUNET_NO))
594 send_error_to_client = GNUNET_NO;
596 if (send_error_to_client == GNUNET_NO)
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 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 200 OK as PUT Response\n",HTTP_PUT_RESPONSE, strlen (HTTP_PUT_RESPONSE), res );
601 MHD_destroy_response (response);
605 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
606 res = MHD_queue_response (session, MHD_HTTP_BAD_REQUEST, response);
607 MHD_destroy_response (response);
608 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 400 BAD REQUEST as PUT Response\n");
610 cs->is_put_in_progress = GNUNET_NO;
611 cs->is_bad_request = GNUNET_NO;
612 cs->pending_inbound_msg->pos = 0;
616 if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
618 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Got GET Request\n");
619 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"URL: `%s'\n",url);
620 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
621 res = MHD_queue_response (session, MHD_HTTP_OK, response);
622 MHD_destroy_response (response);
630 * Call MHD to process pending requests and then go back
631 * and schedule the next run.
633 static void http_daemon_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
636 * Function that queries MHD's select sets and
637 * starts the task waiting for them.
639 static GNUNET_SCHEDULER_TaskIdentifier
640 http_daemon_prepare (struct MHD_Daemon *daemon_handle)
642 GNUNET_SCHEDULER_TaskIdentifier ret;
646 struct GNUNET_NETWORK_FDSet *wrs;
647 struct GNUNET_NETWORK_FDSet *wws;
648 struct GNUNET_NETWORK_FDSet *wes;
650 unsigned long long timeout;
652 struct GNUNET_TIME_Relative tv;
657 wrs = GNUNET_NETWORK_fdset_create ();
658 wes = GNUNET_NETWORK_fdset_create ();
659 wws = GNUNET_NETWORK_fdset_create ();
661 GNUNET_assert (MHD_YES ==
662 MHD_get_fdset (daemon_handle,
667 haveto = MHD_get_timeout (daemon_handle, &timeout);
668 if (haveto == MHD_YES)
669 tv.value = (uint64_t) timeout;
671 tv = GNUNET_TIME_UNIT_FOREVER_REL;
672 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
673 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
674 GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
675 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
676 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
677 GNUNET_SCHEDULER_NO_TASK,
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_daemon_run (void *cls,
694 const struct GNUNET_SCHEDULER_TaskContext *tc)
696 struct MHD_Daemon *daemon_handle = cls;
698 if (daemon_handle == http_daemon_v4)
699 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
701 if (daemon_handle == http_daemon_v6)
702 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
704 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
707 GNUNET_assert (MHD_YES == MHD_run (daemon_handle));
708 if (daemon_handle == http_daemon_v4)
709 http_task_v4 = http_daemon_prepare (daemon_handle);
710 if (daemon_handle == http_daemon_v6)
711 http_task_v6 = http_daemon_prepare (daemon_handle);
716 * Removes a message from the linked list of messages
717 * @param ses session to remove message from
718 * @param msg message to remove
719 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
722 static int remove_http_message(struct Session * ses, struct HTTP_Message * msg)
724 GNUNET_free (msg->buf);
725 GNUNET_free (msg->dest_url);
727 GNUNET_CONTAINER_DLL_remove(ses->pending_outbound_msg_head,ses->pending_outbound_msg_tail,msg);
732 static size_t header_function( void *ptr, size_t size, size_t nmemb, void *stream)
735 size_t len = size * nmemb;
738 if ((size * nmemb) < SIZE_MAX)
739 tmp = GNUNET_malloc (len+1);
741 if ((tmp != NULL) && (len > 0))
746 if (tmp[len-2] == 13)
750 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s'\n",tmp);
760 * Callback method used with libcurl
761 * Method is called when libcurl needs to read data during sending
762 * @param stream pointer where to write data
763 * @param size size of an individual element
764 * @param nmemb count of elements that can be written to the buffer
765 * @param ptr source pointer, passed to the libcurl handle
766 * @return bytes written to stream
768 static size_t send_read_callback(void *stream, size_t size, size_t nmemb, void *ptr)
770 struct Session * ses = ptr;
771 struct HTTP_Message * msg = ses->pending_outbound_msg_tail;
776 if (( msg->pos < msg->len))
778 /* data fit in buffer */
779 if ((msg->len - msg->pos) <= (size * nmemb))
781 len = (msg->len - msg->pos);
782 memcpy(stream, &msg->buf[msg->pos], len);
789 memcpy(stream, &msg->buf[msg->pos], len);
794 /* no data to send */
803 * Callback method used with libcurl
804 * Method is called when libcurl needs to write data during sending
805 * @param stream pointer where to write data
806 * @param size size of an individual element
807 * @param nmemb count of elements that can be written to the buffer
808 * @param ptr destination pointer, passed to the libcurl handle
809 * @return bytes read from stream
811 static size_t send_write_callback( void *stream, size_t size, size_t nmemb, void *ptr)
815 if ((size * nmemb) < SIZE_MAX)
816 data = GNUNET_malloc(size*nmemb +1);
819 memcpy( data, stream, size*nmemb);
820 data[size*nmemb] = '\0';
823 return (size * nmemb);
828 * Function setting up file descriptors and scheduling task to run
829 * @param ses session to send data to
830 * @return bytes sent to peer
832 static size_t send_prepare(struct Session* ses );
835 * Function setting up curl handle and selecting message to send
836 * @param ses session to send data to
837 * @return bytes sent to peer
839 static ssize_t send_select_init (struct Session* ses )
843 struct HTTP_Message * msg;
845 if ( NULL == ses->curl_handle)
846 ses->curl_handle = curl_easy_init();
847 if( NULL == ses->curl_handle)
849 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Getting cURL handle failed\n");
852 GNUNET_assert (NULL != ses->pending_outbound_msg_tail);
853 msg = ses->pending_outbound_msg_tail;
856 curl_easy_setopt(ses->curl_handle, CURLOPT_VERBOSE, 1L);
858 curl_easy_setopt(ses->curl_handle, CURLOPT_URL, msg->dest_url);
859 curl_easy_setopt(ses->curl_handle, CURLOPT_PUT, 1L);
860 curl_easy_setopt(ses->curl_handle, CURLOPT_HEADERFUNCTION, &header_function);
861 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEHEADER, ses);
862 curl_easy_setopt(ses->curl_handle, CURLOPT_READFUNCTION, send_read_callback);
863 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
864 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEFUNCTION, send_write_callback);
865 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
866 curl_easy_setopt(ses->curl_handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t) msg->len);
867 curl_easy_setopt(ses->curl_handle, CURLOPT_TIMEOUT, (long) (timeout.value / 1000 ));
868 GNUNET_assert (CURLE_OK == curl_easy_setopt(ses->curl_handle, CURLOPT_PRIVATE, ses));
869 curl_easy_setopt(ses->curl_handle, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
870 curl_easy_setopt(ses->curl_handle, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
872 mret = curl_multi_add_handle(multi_handle, ses->curl_handle);
873 if (mret != CURLM_OK)
875 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
876 _("%s failed at %s:%d: `%s'\n"),
877 "curl_multi_add_handle", __FILE__, __LINE__,
878 curl_multi_strerror (mret));
881 bytes_sent = send_prepare (ses );
885 static void send_execute (void *cls,
886 const struct GNUNET_SCHEDULER_TaskContext *tc)
888 static unsigned int handles_last_run;
892 struct Session * cs = NULL;
895 http_task_send = GNUNET_SCHEDULER_NO_TASK;
896 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
902 mret = curl_multi_perform (multi_handle, &running);
903 if (running < handles_last_run)
908 msg = curl_multi_info_read (multi_handle, &running);
909 GNUNET_break (msg != NULL);
912 /* get session for affected curl handle */
913 GNUNET_assert ( msg->easy_handle != NULL );
914 curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &cs);
915 GNUNET_assert ( cs != NULL );
916 GNUNET_assert ( cs->pending_outbound_msg_tail != NULL );
921 if ( (msg->data.result != CURLE_OK) &&
922 (msg->data.result != CURLE_GOT_NOTHING) )
924 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
925 _("%s failed for `%s' at %s:%d: `%s'\n"),
926 "curl_multi_perform",
927 GNUNET_i2s(&cs->partner),
930 curl_easy_strerror (msg->data.result));
931 /* sending msg failed*/
932 if (( NULL != cs->pending_outbound_msg_tail) && ( NULL != cs->pending_outbound_msg_tail->transmit_cont))
933 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
937 GNUNET_assert (CURLE_OK == curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result));
938 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
939 "Send to peer `%s' completed with code %u\n", GNUNET_i2s(&cs->partner), http_result );
941 curl_easy_cleanup(cs->curl_handle);
942 cs->curl_handle=NULL;
944 /* Calling transmit continuation */
945 if (( NULL != cs->pending_outbound_msg_tail) && (NULL != cs->pending_outbound_msg_tail->transmit_cont))
947 /* HTTP 1xx : Last message before here was informational */
948 if ((http_result >=100) && (http_result < 200))
949 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_OK);
950 /* HTTP 2xx: successful operations */
951 if ((http_result >=200) && (http_result < 300))
952 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_OK);
953 /* HTTP 3xx..5xx: error */
954 if ((http_result >=300) && (http_result < 600))
955 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
959 if (GNUNET_OK != remove_http_message(cs, cs->pending_outbound_msg_tail))
960 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Message could not be removed from session `%s'", GNUNET_i2s(&cs->partner));
961 /* send pending messages */
962 if (cs->pending_outbound_msg_tail!= NULL)
964 send_select_init (cs);
972 while ( (running > 0) );
974 handles_last_run = running;
976 while (mret == CURLM_CALL_MULTI_PERFORM);
982 * Function setting up file descriptors and scheduling task to run
983 * @param ses session to send data to
984 * @return bytes sent to peer
986 static size_t send_prepare(struct Session* ses )
992 struct GNUNET_NETWORK_FDSet *grs;
993 struct GNUNET_NETWORK_FDSet *gws;
1001 mret = curl_multi_fdset (multi_handle, &rs, &ws, &es, &max);
1002 if (mret != CURLM_OK)
1004 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1005 _("%s failed at %s:%d: `%s'\n"),
1006 "curl_multi_fdset", __FILE__, __LINE__,
1007 curl_multi_strerror (mret));
1010 mret = curl_multi_timeout (multi_handle, &to);
1011 if (mret != CURLM_OK)
1013 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1014 _("%s failed at %s:%d: `%s'\n"),
1015 "curl_multi_timeout", __FILE__, __LINE__,
1016 curl_multi_strerror (mret));
1020 grs = GNUNET_NETWORK_fdset_create ();
1021 gws = GNUNET_NETWORK_fdset_create ();
1022 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
1023 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
1024 http_task_send = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1025 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1026 GNUNET_SCHEDULER_NO_TASK,
1027 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),
1032 GNUNET_NETWORK_fdset_destroy (gws);
1033 GNUNET_NETWORK_fdset_destroy (grs);
1035 /* FIXME: return bytes REALLY sent */
1040 * Function that can be used by the transport service to transmit
1041 * a message using the plugin.
1043 * @param cls closure
1044 * @param target who should receive this message
1045 * @param priority how important is the message
1046 * @param msgbuf the message to transmit
1047 * @param msgbuf_size number of bytes in 'msgbuf'
1048 * @param to when should we time out
1049 * @param session which session must be used (or NULL for "any")
1050 * @param addr the address to use (can be NULL if the plugin
1051 * is "on its own" (i.e. re-use existing TCP connection))
1052 * @param addrlen length of the address in bytes
1053 * @param force_address GNUNET_YES if the plugin MUST use the given address,
1054 * otherwise the plugin may use other addresses or
1055 * existing connections (if available)
1056 * @param cont continuation to call once the message has
1057 * been transmitted (or if the transport is ready
1058 * for the next transmission call; or if the
1059 * peer disconnected...)
1060 * @param cont_cls closure for cont
1061 * @return number of bytes used (on the physical network, with overheads);
1062 * -1 on hard errors (i.e. address invalid); 0 is a legal value
1063 * and does NOT mean that the message was not transmitted (DV)
1066 http_plugin_send (void *cls,
1067 const struct GNUNET_PeerIdentity *target,
1070 unsigned int priority,
1071 struct GNUNET_TIME_Relative to,
1072 struct Session *session,
1076 GNUNET_TRANSPORT_TransmitContinuation cont,
1082 struct HTTP_Message * msg;
1088 cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &target->hashPubKey);
1091 cs = create_session((char *) addr, addrlen, NULL, 0, target);
1092 cs->is_active = GNUNET_YES;
1093 res = GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
1094 &cs->partner.hashPubKey,
1096 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1097 if (res == GNUNET_OK)
1098 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1099 "New Session `%s' inserted\n", GNUNET_i2s(target));
1102 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1103 "Session `%s' found\n", GNUNET_i2s(target));
1105 GNUNET_assert ((addr!=NULL) && (addrlen != 0));
1106 if (addrlen == (sizeof (struct IPv4HttpAddress)))
1108 address = GNUNET_malloc(INET_ADDRSTRLEN + 1);
1109 inet_ntop(AF_INET, &((struct IPv4HttpAddress *) addr)->ipv4_addr,address,INET_ADDRSTRLEN);
1110 GNUNET_asprintf (&url,
1113 ntohs(((struct IPv4HttpAddress *) addr)->u_port),
1114 (char *) (&my_ascii_hash_ident));
1115 GNUNET_free(address);
1117 else if (addrlen == (sizeof (struct IPv6HttpAddress)))
1119 address = GNUNET_malloc(INET6_ADDRSTRLEN + 1);
1120 inet_ntop(AF_INET6, &((struct IPv6HttpAddress *) addr)->ipv6_addr,address,INET6_ADDRSTRLEN);
1121 GNUNET_asprintf(&url,
1124 ntohs(((struct IPv6HttpAddress *) addr)->u6_port),
1125 (char *) (&my_ascii_hash_ident));
1126 GNUNET_free(address);
1129 /* setting up message */
1130 msg = GNUNET_malloc (sizeof (struct HTTP_Message));
1132 msg->len = msgbuf_size;
1134 msg->buf = GNUNET_malloc (msgbuf_size);
1135 msg->dest_url = url;
1136 msg->transmit_cont = cont;
1137 msg->transmit_cont_cls = cont_cls;
1138 memcpy (msg->buf,msgbuf, msgbuf_size);
1139 /* insert created message in double linked list of pending messages */
1140 GNUNET_CONTAINER_DLL_insert (cs->pending_outbound_msg_head, cs->pending_outbound_msg_tail, msg);
1142 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));
1143 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: url `%s'\n",url);
1144 if (msg == cs->pending_outbound_msg_tail)
1146 return send_select_init (cs);
1154 * Function that can be used to force the plugin to disconnect
1155 * from the given peer and cancel all previous transmissions
1156 * (and their continuationc).
1158 * @param cls closure
1159 * @param target peer from which to disconnect
1162 http_plugin_disconnect (void *cls,
1163 const struct GNUNET_PeerIdentity *target)
1165 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: http_plugin_disconnect\n");
1166 // struct Plugin *plugin = cls;
1172 * Convert the transports address to a nice, human-readable
1175 * @param cls closure
1176 * @param type name of the transport that generated the address
1177 * @param addr one of the addresses of the host, NULL for the last address
1178 * the specific address format depends on the transport
1179 * @param addrlen length of the address
1180 * @param numeric should (IP) addresses be displayed in numeric form?
1181 * @param timeout after how long should we give up?
1182 * @param asc function to call on each string
1183 * @param asc_cls closure for asc
1186 http_plugin_address_pretty_printer (void *cls,
1191 struct GNUNET_TIME_Relative timeout,
1192 GNUNET_TRANSPORT_AddressStringCallback
1195 const struct IPv4HttpAddress *t4;
1196 const struct IPv6HttpAddress *t6;
1197 struct sockaddr_in a4;
1198 struct sockaddr_in6 a6;
1204 if (addrlen == sizeof (struct IPv6HttpAddress))
1206 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1208 a6.sin6_addr = t6->ipv6_addr;
1209 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1210 port = ntohs(t6->u6_port);
1212 else if (addrlen == sizeof (struct IPv4HttpAddress))
1214 address = GNUNET_malloc (INET_ADDRSTRLEN);
1216 a4.sin_addr.s_addr = t4->ipv4_addr;
1217 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1218 port = ntohs(t4->u_port);
1222 /* invalid address */
1223 GNUNET_break_op (0);
1224 asc (asc_cls, NULL);
1227 res = GNUNET_asprintf(&ret,"http://%s:%u/",address,port);
1228 GNUNET_free (address);
1229 GNUNET_assert(res != 0);
1237 * Another peer has suggested an address for this
1238 * peer and transport plugin. Check that this could be a valid
1239 * address. If so, consider adding it to the list
1242 * @param cls closure
1243 * @param addr pointer to the address
1244 * @param addrlen length of addr
1245 * @return GNUNET_OK if this is a plausible address for this peer
1249 http_plugin_address_suggested (void *cls,
1250 void *addr, size_t addrlen)
1252 struct IPv4HttpAddress *v4;
1253 struct IPv6HttpAddress *v6;
1256 if ((addrlen != sizeof (struct IPv4HttpAddress)) &&
1257 (addrlen != sizeof (struct IPv6HttpAddress)))
1259 return GNUNET_SYSERR;
1261 if (addrlen == sizeof (struct IPv4HttpAddress))
1263 v4 = (struct IPv4HttpAddress *) addr;
1264 if (INADDR_LOOPBACK == ntohl(v4->ipv4_addr))
1266 return GNUNET_SYSERR;
1268 port = ntohs (v4->u_port);
1269 if (port != plugin->port_inbound)
1271 return GNUNET_SYSERR;
1276 v6 = (struct IPv6HttpAddress *) addr;
1277 if (IN6_IS_ADDR_LINKLOCAL (&v6->ipv6_addr))
1279 return GNUNET_SYSERR;
1281 port = ntohs (v6->u6_port);
1282 if (port != plugin->port_inbound)
1284 return GNUNET_SYSERR;
1294 * Function called for a quick conversion of the binary address to
1295 * a numeric address. Note that the caller must not free the
1296 * address and that the next call to this function is allowed
1297 * to override the address again.
1299 * @param cls closure
1300 * @param addr binary address
1301 * @param addrlen length of the address
1302 * @return string representing the same address
1305 http_plugin_address_to_string (void *cls,
1309 const struct IPv4HttpAddress *t4;
1310 const struct IPv6HttpAddress *t6;
1311 struct sockaddr_in a4;
1312 struct sockaddr_in6 a6;
1318 if (addrlen == sizeof (struct IPv6HttpAddress))
1320 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1322 a6.sin6_addr = t6->ipv6_addr;
1323 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1324 port = ntohs(t6->u6_port);
1326 else if (addrlen == sizeof (struct IPv4HttpAddress))
1328 address = GNUNET_malloc (INET_ADDRSTRLEN);
1330 a4.sin_addr.s_addr = t4->ipv4_addr;
1331 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1332 port = ntohs(t4->u_port);
1336 /* invalid address */
1339 res = GNUNET_asprintf(&ret,"%s:%u",address,port);
1340 GNUNET_free (address);
1341 GNUNET_assert(res != 0);
1346 * Add the IP of our network interface to the list of
1347 * our external IP addresses.
1349 * @param cls the 'struct Plugin*'
1350 * @param name name of the interface
1351 * @param isDefault do we think this may be our default interface
1352 * @param addr address of the interface
1353 * @param addrlen number of bytes in addr
1354 * @return GNUNET_OK to continue iterating
1357 process_interfaces (void *cls,
1360 const struct sockaddr *addr, socklen_t addrlen)
1362 struct IPv4HttpAddress t4;
1363 struct IPv6HttpAddress t6;
1368 af = addr->sa_family;
1371 if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
1373 /* skip loopback addresses */
1376 t4.ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
1377 t4.u_port = htons (plugin->port_inbound);
1381 else if (af == AF_INET6)
1383 if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
1385 /* skip link local addresses */
1388 if (IN6_IS_ADDR_LOOPBACK (&((struct sockaddr_in6 *) addr)->sin6_addr))
1390 /* skip loopback addresses */
1393 memcpy (&t6.ipv6_addr,
1394 &((struct sockaddr_in6 *) addr)->sin6_addr,
1395 sizeof (struct in6_addr));
1396 t6.u6_port = htons (plugin->port_inbound);
1405 plugin->env->notify_address(plugin->env->cls,"http",arg, args, GNUNET_TIME_UNIT_FOREVER_REL);
1409 int hashMapFreeIterator (void *cls, const GNUNET_HashCode *key, void *value)
1411 struct Session * cs = value;
1413 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing session for peer `%s'\n",GNUNET_i2s(&cs->partner));
1415 /* freeing messages */
1416 struct HTTP_Message *cur;
1417 struct HTTP_Message *tmp;
1418 cur = cs->pending_outbound_msg_head;
1423 GNUNET_free_non_null(cur->dest_url);
1424 GNUNET_free_non_null (cur->buf);
1428 GNUNET_SERVER_mst_destroy (cs->msgtok);
1429 GNUNET_free (cs->pending_inbound_msg->buf);
1430 GNUNET_free (cs->pending_inbound_msg);
1431 GNUNET_free_non_null (cs->addr_in);
1432 GNUNET_free_non_null (cs->addr_out);
1439 * Exit point from the plugin.
1442 libgnunet_plugin_transport_http_done (void *cls)
1444 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
1445 struct Plugin *plugin = api->cls;
1448 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unloading http plugin...\n");
1450 if ( http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1452 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v4);
1453 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
1456 if ( http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1458 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v6);
1459 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1462 if ( http_task_send != GNUNET_SCHEDULER_NO_TASK)
1464 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_send);
1465 http_task_send = GNUNET_SCHEDULER_NO_TASK;
1468 if (http_daemon_v4 != NULL)
1470 MHD_stop_daemon (http_daemon_v4);
1471 http_daemon_v4 = NULL;
1473 if (http_daemon_v6 != NULL)
1475 MHD_stop_daemon (http_daemon_v6);
1476 http_daemon_v6 = NULL;
1479 /* free all sessions */
1480 GNUNET_CONTAINER_multihashmap_iterate (plugin->sessions,
1481 &hashMapFreeIterator,
1484 GNUNET_CONTAINER_multihashmap_destroy (plugin->sessions);
1486 mret = curl_multi_cleanup(multi_handle);
1487 if ( CURLM_OK != mret)
1488 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed");
1490 GNUNET_free (plugin);
1497 * Entry point for the plugin.
1500 libgnunet_plugin_transport_http_init (void *cls)
1502 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
1503 struct GNUNET_TRANSPORT_PluginFunctions *api;
1504 unsigned int timeout;
1505 struct GNUNET_TIME_Relative gn_timeout;
1506 long long unsigned int port;
1508 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting http plugin...\n");
1510 plugin = GNUNET_malloc (sizeof (struct Plugin));
1512 plugin->sessions = NULL;
1513 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
1515 api->send = &http_plugin_send;
1516 api->disconnect = &http_plugin_disconnect;
1517 api->address_pretty_printer = &http_plugin_address_pretty_printer;
1518 api->check_address = &http_plugin_address_suggested;
1519 api->address_to_string = &http_plugin_address_to_string;
1521 /* Hashing our identity to use it in URLs */
1522 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &my_ascii_hash_ident);
1524 /* Reading port number from config file */
1526 GNUNET_CONFIGURATION_get_value_number (env->cfg,
1532 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1535 ("Require valid port number for transport plugin `%s' in configuration!\n"),
1537 libgnunet_plugin_transport_http_done (api);
1540 GNUNET_assert ((port > 0) && (port <= 65535));
1541 plugin->port_inbound = port;
1542 gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
1543 timeout = ( gn_timeout.value / 1000);
1544 if ((http_daemon_v4 == NULL) && (http_daemon_v6 == NULL) && (port != 0))
1546 http_daemon_v6 = MHD_start_daemon (MHD_USE_IPv6,
1548 &acceptPolicyCallback,
1549 NULL , &accessHandlerCallback, NULL,
1550 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1551 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1552 MHD_OPTION_CONNECTION_TIMEOUT, timeout,
1553 /* FIXME: set correct limit */
1554 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1555 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1557 http_daemon_v4 = MHD_start_daemon (MHD_NO_FLAG,
1559 &acceptPolicyCallback,
1560 NULL , &accessHandlerCallback, NULL,
1561 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1562 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1563 MHD_OPTION_CONNECTION_TIMEOUT, timeout,
1564 /* FIXME: set correct limit */
1565 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1566 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1569 if (http_daemon_v4 != NULL)
1570 http_task_v4 = http_daemon_prepare (http_daemon_v4);
1571 if (http_daemon_v6 != NULL)
1572 http_task_v6 = http_daemon_prepare (http_daemon_v6);
1574 if (http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1575 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 on port %u\n",port);
1576 else if (http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1577 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 on port %u\n",port);
1580 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No MHD was started, transport plugin not functional!\n");
1581 libgnunet_plugin_transport_http_done (api);
1585 /* Initializing cURL */
1586 multi_handle = curl_multi_init();
1587 if ( NULL == multi_handle )
1589 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1591 _("Could not initialize curl multi handle, failed to start http plugin!\n"),
1593 libgnunet_plugin_transport_http_done (api);
1597 plugin->sessions = GNUNET_CONTAINER_multihashmap_create (10);
1598 GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
1603 /* end of plugin_transport_http.c */