2 This file is part of GNUnet
3 (C) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 2, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file transport/plugin_transport_template.c
23 * @brief template for a new transport service
24 * @author Christian Grothoff
28 #include "gnunet_constants.h"
29 #include "gnunet_protocols.h"
30 #include "gnunet_connection_lib.h"
31 #include "gnunet_server_lib.h"
32 #include "gnunet_service_lib.h"
33 #include "gnunet_statistics_service.h"
34 #include "gnunet_transport_service.h"
35 #include "gnunet_resolver_service.h"
36 #include "plugin_transport.h"
37 #include "gnunet_os_lib.h"
38 #include "microhttpd.h"
39 #include <curl/curl.h>
42 #define DEBUG_CURL GNUNET_NO
43 #define DEBUG_HTTP GNUNET_NO
46 * Text of the response sent back after the last bytes of a PUT
47 * request have been received (just to formally obey the HTTP
50 #define HTTP_PUT_RESPONSE "Thank you!"
53 * After how long do we expire an address that we
54 * learned from another peer if it is not reconfirmed
57 #define LEARNED_ADDRESS_EXPIRATION GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 6)
60 * Page returned if request invalid
62 #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>"
65 * Timeout for a http connect
67 #define HTTP_CONNECT_TIMEOUT 30
70 * Timeout for a http connect
72 #define HTTP_MESSAGE_INITIAL_BUFFERSIZE GNUNET_SERVER_MAX_MESSAGE_SIZE
76 * Encapsulation of all of the state of the plugin.
81 * Network format for IPv4 addresses.
83 struct IPv4HttpAddress
86 * IPv4 address, in network byte order.
91 * Port number, in network byte order.
99 * Network format for IPv6 addresses.
101 struct IPv6HttpAddress
106 struct in6_addr ipv6_addr;
109 * Port number, in network byte order.
118 * Message to send using http
123 * Next field for linked list
125 struct HTTP_Message * next;
128 * buffer containing data to send
133 * amount of data already sent
138 * amount of data to sent
145 * Continuation function to call once the transmission buffer
146 * has again space available. NULL if there is no
147 * continuation to call.
149 GNUNET_TRANSPORT_TransmitContinuation transmit_cont;
152 * Closure for transmit_cont.
154 void *transmit_cont_cls;
156 unsigned int http_result_code;
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 sender;
183 * Sender's ip address to distinguish between incoming connections
185 struct sockaddr_in * addr_inbound;
188 * Sender's ip address recieved by transport
190 struct sockaddr_in * addr_outbound;
193 * Did we initiate the connection (GNUNET_YES) or the other peer (GNUNET_NO)?
195 unsigned int is_client;
198 * Is the connection active (GNUNET_YES) or terminated (GNUNET_NO)?
200 unsigned int is_active;
203 * At what time did we reset last_received last?
205 struct GNUNET_TIME_Absolute last_quota_update;
208 * How many bytes have we received since the "last_quota_update"
211 uint64_t last_received;
214 * Number of bytes per ms that this peer is allowed
220 * Is there a HTTP/PUT in progress?
222 unsigned int is_put_in_progress;
225 * Is there a HTTP/PUT in progress?
227 unsigned int is_bad_request;
232 struct GNUNET_CRYPTO_HashAsciiEncoded hash;
234 struct HTTP_Message * pending_outbound_msg;;
236 struct HTTP_Message * pending_inbound_msg;
242 * Encapsulation of all of the state of the plugin.
249 struct GNUNET_TRANSPORT_PluginEnvironment *env;
251 unsigned int port_inbound;
254 * List of open sessions.
256 struct Session *sessions;
259 * Number of active sessions
262 unsigned int session_count;
266 * Daemon for listening for new IPv4 connections.
268 static struct MHD_Daemon *http_daemon_v4;
271 * Daemon for listening for new IPv6connections.
273 static struct MHD_Daemon *http_daemon_v6;
276 * Our primary task for http daemon handling IPv4 connections
278 static GNUNET_SCHEDULER_TaskIdentifier http_task_v4;
281 * Our primary task for http daemon handling IPv6 connections
283 static GNUNET_SCHEDULER_TaskIdentifier http_task_v6;
287 * The task sending data
289 static GNUNET_SCHEDULER_TaskIdentifier http_task_send;
293 * Information about this plugin
295 static struct Plugin *plugin;
300 static CURLM *multi_handle;
303 * Our ASCII encoded, hashed peer identity
304 * This string is used to distinguish between connections and is added to the urls
306 static struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
308 struct GNUNET_TIME_Relative timeout;
311 * Finds a http session in our linked list using peer identity as a key
312 * @param peer peeridentity
313 * @return http session corresponding to peer identity
315 static struct Session * find_session_by_pi( const struct GNUNET_PeerIdentity *peer )
317 struct Session * cur;
318 GNUNET_HashCode hc_peer;
319 GNUNET_HashCode hc_current;
321 cur = plugin->sessions;
322 hc_peer = peer->hashPubKey;
325 hc_current = cur->sender.hashPubKey;
326 if ( 0 == GNUNET_CRYPTO_hash_cmp( &hc_peer, &hc_current))
328 cur = plugin->sessions->next;
334 * Finds a http session in our linked list using libcurl handle as a key
335 * Needed when sending data with libcurl to differentiate between sessions
336 * @param handle peeridentity
337 * @return http session corresponding to peer identity
339 static struct Session * find_session_by_curlhandle( CURL* handle )
341 struct Session * cur;
343 cur = plugin->sessions;
346 if ( handle == cur->curl_handle )
348 cur = plugin->sessions->next;
354 * Create a new session
356 * @param addr_in address the peer is using inbound
357 * @param addr_out address the peer is using outbound
358 * @param peer identity
359 * @return created session object
361 static struct Session * create_session (struct sockaddr_in *addr_in, struct sockaddr_in *addr_out, const struct GNUNET_PeerIdentity *peer)
363 struct Session * ses = GNUNET_malloc ( sizeof( struct Session) );
365 ses->addr_inbound = GNUNET_malloc ( sizeof (struct sockaddr_in) );
366 ses->addr_outbound = GNUNET_malloc ( sizeof (struct sockaddr_in) );
368 ses->plugin = plugin;
369 if ((NULL != addr_in) && (( AF_INET == addr_in->sin_family) || ( AF_INET6 == addr_in->sin_family)))
371 memcpy(ses->addr_inbound, addr_in, sizeof (struct sockaddr_in));
373 if ((NULL != addr_out) && (( AF_INET == addr_out->sin_family) || ( AF_INET6 == addr_out->sin_family)))
375 memcpy(ses->addr_outbound, addr_out, sizeof (struct sockaddr_in));
377 memcpy(&ses->sender, peer, sizeof (struct GNUNET_PeerIdentity));
378 GNUNET_CRYPTO_hash_to_enc(&ses->sender.hashPubKey,&(ses->hash));
379 ses->is_active = GNUNET_NO;
380 ses->pending_inbound_msg = GNUNET_malloc( sizeof (struct HTTP_Message));
381 ses->pending_inbound_msg->buf = GNUNET_malloc(GNUNET_SERVER_MAX_MESSAGE_SIZE);
382 ses->pending_inbound_msg->len = GNUNET_SERVER_MAX_MESSAGE_SIZE;
383 ses->pending_inbound_msg->pos = 0;
388 * Callback called by MHD when a connection is terminated
390 static void requestCompletedCallback (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
394 cs = *httpSessionCache;
397 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection from peer `%s' was terminated\n",GNUNET_i2s(&cs->sender));
398 /* session set to inactive */
399 cs->is_active = GNUNET_NO;
400 cs->is_put_in_progress = GNUNET_NO;
406 * Check if we are allowed to connect to the given IP.
409 acceptPolicyCallback (void *cls,
410 const struct sockaddr *addr, socklen_t addr_len)
412 /* Every connection is accepted, nothing more to do here */
417 * Process GET or PUT request received via MHD. For
418 * GET, queue response that will send back our pending
419 * messages. For PUT, process incoming data and send
420 * to GNUnet core. In either case, check if a session
421 * already exists and create a new one if not.
424 accessHandlerCallback (void *cls,
425 struct MHD_Connection *session,
429 const char *upload_data,
430 size_t * upload_data_size, void **httpSessionCache)
432 struct MHD_Response *response;
434 struct Session * cs_temp;
435 const union MHD_ConnectionInfo * conn_info;
436 struct sockaddr_in *addrin;
437 struct sockaddr_in6 *addrin6;
438 char address[INET6_ADDRSTRLEN+14];
439 struct GNUNET_PeerIdentity pi_in;
441 struct GNUNET_MessageHeader *gn_msg;
442 int send_error_to_client;
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);
470 /* Incoming IPv6 connection */
471 if ( AF_INET6 == conn_info->client_addr->sin_family)
473 addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
474 inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
476 /* find existing session for address */
478 if (plugin->session_count > 0)
480 cs = plugin->sessions;
484 /* Comparison based on ip address */
485 // res = (0 == memcmp(&(conn_info->client_addr->sin_addr),&(cs->addr->sin_addr), sizeof (struct in_addr))) ? GNUNET_YES : GNUNET_NO;
487 /* Comparison based on ip address, port number and address family */
488 // res = (0 == memcmp((conn_info->client_addr),(cs->addr), sizeof (struct sockaddr_in))) ? GNUNET_YES : GNUNET_NO;
490 /* Comparison based on PeerIdentity */
491 res = (0 == memcmp(&pi_in,&(cs->sender), sizeof (struct GNUNET_PeerIdentity))) ? GNUNET_YES : GNUNET_NO;
493 if ( GNUNET_YES == res)
495 /* existing session for this address found */
496 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session for peer `%s' found\n",GNUNET_i2s(&cs->sender));
502 /* no existing session, create a new one*/
505 /* create new session object */
506 cs = create_session(conn_info->client_addr, NULL, &pi_in);
508 /* Insert session into linked list */
509 if ( plugin->sessions == NULL)
511 plugin->sessions = cs;
512 plugin->session_count = 1;
514 cs_temp = plugin->sessions;
515 while ( cs_temp->next != NULL )
517 cs_temp = cs_temp->next;
522 plugin->session_count++;
524 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"New Session `%s' inserted, count %u \n", GNUNET_i2s(&cs->sender), plugin->session_count);
528 if (*httpSessionCache == NULL)
530 *httpSessionCache = cs;
531 /* Updating session */
532 memcpy(cs->addr_inbound,conn_info->client_addr, sizeof(struct sockaddr_in));
534 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Daemon has new an incoming `%s' request from peer `%s' (`[%s]:%u')\n",method, GNUNET_i2s(&cs->sender),address,ntohs(cs->addr_inbound->sin_port));
538 cs = *httpSessionCache;
540 /* Is it a PUT or a GET request */
541 if ( 0 == strcmp (MHD_HTTP_METHOD_PUT, method) )
544 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_NO))
546 if (cs->pending_inbound_msg->pos !=0 )
548 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
549 _("Incoming message from peer `%s', while existing message with %u bytes was not forwarded to transport'\n"),
550 GNUNET_i2s(&cs->sender), cs->pending_inbound_msg->pos);
551 cs->pending_inbound_msg->pos = 0;
554 cs->is_put_in_progress = GNUNET_YES;
555 cs->is_bad_request = GNUNET_NO;
556 cs->is_active = GNUNET_YES;
560 if ((*upload_data_size > 0) && (cs->is_bad_request != GNUNET_YES))
562 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))
564 /* copy uploaded data to buffer */
565 memcpy(&cs->pending_inbound_msg->buf[cs->pending_inbound_msg->pos],upload_data,*upload_data_size);
566 cs->pending_inbound_msg->pos += *upload_data_size;
567 *upload_data_size = 0;
572 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);
573 cs->is_bad_request = GNUNET_YES;
574 /* (*upload_data_size) bytes not processed */
579 if ((cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_YES))
581 *upload_data_size = 0;
582 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
583 res = MHD_queue_response (session, MHD_HTTP_REQUEST_ENTITY_TOO_LARGE, response);
586 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 413 Request Entity Too Large as PUT Response\n");
587 cs->is_bad_request = GNUNET_NO;
588 cs->is_put_in_progress =GNUNET_NO;
589 cs->pending_inbound_msg->pos = 0;
591 MHD_destroy_response (response);
595 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_NO))
597 send_error_to_client = GNUNET_YES;
598 struct GNUNET_MessageHeader * gn_msg = NULL;
599 /*check message and forward here */
601 if (cs->pending_inbound_msg->pos >= sizeof (struct GNUNET_MessageHeader))
603 gn_msg = GNUNET_malloc (cs->pending_inbound_msg->pos);
604 memcpy (gn_msg,cs->pending_inbound_msg->buf,cs->pending_inbound_msg->pos);
606 if ((ntohs(gn_msg->size) == cs->pending_inbound_msg->pos))
608 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Recieved GNUnet message type %u size %u and payload %u \n",ntohs (gn_msg->type), ntohs (gn_msg->size), ntohs (gn_msg->size)-sizeof(struct GNUNET_MessageHeader));
609 /* forwarding message to transport */
612 if ( AF_INET == cs->addr_inbound->sin_family)
614 tmp = GNUNET_malloc (INET_ADDRSTRLEN + 14);
615 inet_ntop(AF_INET, &(cs->addr_inbound)->sin_addr,address,INET_ADDRSTRLEN);
616 GNUNET_asprintf(&tmp,"%s:%u",address,ntohs(cs->addr_inbound->sin_port));
618 /* Incoming IPv6 connection */
619 if ( AF_INET6 == cs->addr_inbound->sin_family)
621 tmp = GNUNET_malloc (INET6_ADDRSTRLEN + 14);
622 inet_ntop(AF_INET6, &((struct sockaddr_in6 *) cs->addr_inbound)->sin6_addr,address,INET6_ADDRSTRLEN);
623 GNUNET_asprintf(&tmp,"[%s]:%u",address,ntohs(cs->addr_inbound->sin_port));
628 plugin->env->receive(plugin->env, &(cs->sender), gn_msg, 1, cs , tmp, strlen(tmp));
629 GNUNET_free_non_null(tmp);
631 send_error_to_client = GNUNET_NO;
635 if (send_error_to_client == GNUNET_NO)
637 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
638 res = MHD_queue_response (session, MHD_HTTP_OK, response);
639 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 200 OK as PUT Response\n",HTTP_PUT_RESPONSE, strlen (HTTP_PUT_RESPONSE), res );
640 MHD_destroy_response (response);
644 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Recieved malformed message with %u bytes\n", cs->pending_inbound_msg->pos);
645 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
646 res = MHD_queue_response (session, MHD_HTTP_BAD_REQUEST, response);
647 MHD_destroy_response (response);
648 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 400 BAD REQUEST as PUT Response\n");
651 GNUNET_free_non_null (gn_msg);
652 cs->is_put_in_progress = GNUNET_NO;
653 cs->is_bad_request = GNUNET_NO;
654 cs->pending_inbound_msg->pos = 0;
658 if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
660 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Got GET Request\n");
661 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"URL: `%s'\n",url);
662 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
663 res = MHD_queue_response (session, MHD_HTTP_OK, response);
664 MHD_destroy_response (response);
672 * Call MHD to process pending requests and then go back
673 * and schedule the next run.
675 static void http_daemon_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
678 * Function that queries MHD's select sets and
679 * starts the task waiting for them.
681 static GNUNET_SCHEDULER_TaskIdentifier
682 http_daemon_prepare (struct MHD_Daemon *daemon_handle)
684 GNUNET_SCHEDULER_TaskIdentifier ret;
688 struct GNUNET_NETWORK_FDSet *wrs;
689 struct GNUNET_NETWORK_FDSet *wws;
690 struct GNUNET_NETWORK_FDSet *wes;
692 unsigned long long timeout;
694 struct GNUNET_TIME_Relative tv;
699 wrs = GNUNET_NETWORK_fdset_create ();
700 wes = GNUNET_NETWORK_fdset_create ();
701 wws = GNUNET_NETWORK_fdset_create ();
703 GNUNET_assert (MHD_YES ==
704 MHD_get_fdset (daemon_handle,
709 haveto = MHD_get_timeout (daemon_handle, &timeout);
710 if (haveto == MHD_YES)
711 tv.value = (uint64_t) timeout;
713 tv = GNUNET_TIME_UNIT_FOREVER_REL;
714 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
715 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
716 GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
717 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
718 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
719 GNUNET_SCHEDULER_NO_TASK,
725 GNUNET_NETWORK_fdset_destroy (wrs);
726 GNUNET_NETWORK_fdset_destroy (wws);
727 GNUNET_NETWORK_fdset_destroy (wes);
732 * Call MHD to process pending requests and then go back
733 * and schedule the next run.
735 static void http_daemon_run (void *cls,
736 const struct GNUNET_SCHEDULER_TaskContext *tc)
738 struct MHD_Daemon *daemon_handle = cls;
740 if (daemon_handle == http_daemon_v4)
741 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
743 if (daemon_handle == http_daemon_v6)
744 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
746 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
749 GNUNET_assert (MHD_YES == MHD_run (daemon_handle));
750 if (daemon_handle == http_daemon_v4)
751 http_task_v4 = http_daemon_prepare (daemon_handle);
752 if (daemon_handle == http_daemon_v6)
753 http_task_v6 = http_daemon_prepare (daemon_handle);
758 * Removes a message from the linked list of messages
759 * @param ses session to remove message from
760 * @param msg message to remove
761 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
764 static int remove_http_message(struct Session * ses, struct HTTP_Message * msg)
766 struct HTTP_Message * cur;
767 struct HTTP_Message * next;
769 cur = ses->pending_outbound_msg;
773 return GNUNET_SYSERR;
777 ses->pending_outbound_msg = cur->next;
778 GNUNET_free (cur->buf);
779 GNUNET_free (cur->dest_url);
785 while (cur->next!=msg)
787 if (cur->next != NULL)
790 return GNUNET_SYSERR;
793 cur->next = cur->next->next;
794 GNUNET_free (cur->next->buf);
795 GNUNET_free (cur->next->dest_url);
796 GNUNET_free (cur->next);
802 static size_t header_function( void *ptr, size_t size, size_t nmemb, void *stream)
805 unsigned int len = size * nmemb;
806 struct Session * ses = stream;
808 tmp = GNUNET_malloc ( len+1 );
810 if (tmp[len-2] == 13)
813 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s'\n",tmp);
815 if (0==strcmp (tmp,"HTTP/1.1 100 Continue"))
817 ses->pending_outbound_msg->http_result_code=100;
819 if (0==strcmp (tmp,"HTTP/1.1 200 OK"))
821 ses->pending_outbound_msg->http_result_code=200;
823 if (0==strcmp (tmp,"HTTP/1.1 400 Bad Request"))
825 ses->pending_outbound_msg->http_result_code=400;
827 if (0==strcmp (tmp,"HTTP/1.1 404 Not Found"))
829 ses->pending_outbound_msg->http_result_code=404;
831 if (0==strcmp (tmp,"HTTP/1.1 413 Request Entity Too Large"))
833 ses->pending_outbound_msg->http_result_code=413;
840 * Callback method used with libcurl
841 * Method is called when libcurl needs to read data during sending
842 * @param stream pointer where to write data
843 * @param size size of an individual element
844 * @param nmemb count of elements that can be written to the buffer
845 * @param ptr source pointer, passed to the libcurl handle
846 * @return bytes written to stream
848 static size_t send_read_callback(void *stream, size_t size, size_t nmemb, void *ptr)
850 struct Session * ses = ptr;
851 struct HTTP_Message * msg = ses->pending_outbound_msg;
852 unsigned int bytes_sent;
857 if (( msg->pos < msg->len))
859 /* data fit in buffer */
860 if ((msg->len - msg->pos) <= (size * nmemb))
862 len = (msg->len - msg->pos);
863 memcpy(stream, &msg->buf[msg->pos], len);
870 memcpy(stream, &msg->buf[msg->pos], len);
875 /* no data to send */
884 * Callback method used with libcurl
885 * Method is called when libcurl needs to write data during sending
886 * @param stream pointer where to write data
887 * @param size size of an individual element
888 * @param nmemb count of elements that can be written to the buffer
889 * @param ptr destination pointer, passed to the libcurl handle
890 * @return bytes read from stream
892 static size_t send_write_callback( void *stream, size_t size, size_t nmemb, void *ptr)
894 char * data = malloc(size*nmemb +1);
896 memcpy( data, stream, size*nmemb);
897 data[size*nmemb] = '\0';
898 /* Just a dummy print for the response recieved for the PUT message */
899 /* GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Recieved %u bytes: `%s' \n", size * nmemb, data); */
901 return (size * nmemb);
906 * Function setting up file descriptors and scheduling task to run
907 * @param ses session to send data to
908 * @return bytes sent to peer
910 static size_t send_prepare(struct Session* ses );
913 * Function setting up curl handle and selecting message to send
914 * @param ses session to send data to
915 * @return bytes sent to peer
917 static ssize_t send_select_init (struct Session* ses )
921 struct HTTP_Message * msg;
923 if ( NULL == ses->curl_handle)
924 ses->curl_handle = curl_easy_init();
925 if( NULL == ses->curl_handle)
927 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Getting cURL handle failed\n");
930 msg = ses->pending_outbound_msg;
935 curl_easy_setopt(ses->curl_handle, CURLOPT_VERBOSE, 1L);
937 curl_easy_setopt(ses->curl_handle, CURLOPT_URL, msg->dest_url);
938 curl_easy_setopt(ses->curl_handle, CURLOPT_PUT, 1L);
939 curl_easy_setopt(ses->curl_handle, CURLOPT_HEADERFUNCTION, &header_function);
940 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEHEADER, ses);
941 curl_easy_setopt(ses->curl_handle, CURLOPT_READFUNCTION, send_read_callback);
942 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
943 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEFUNCTION, send_write_callback);
944 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
945 curl_easy_setopt(ses->curl_handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t) msg->len);
946 curl_easy_setopt(ses->curl_handle, CURLOPT_TIMEOUT, (long) (timeout.value / 1000 ));
947 curl_easy_setopt(ses->curl_handle, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
948 curl_easy_setopt(ses->curl_handle, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
950 mret = curl_multi_add_handle(multi_handle, ses->curl_handle);
951 if (mret != CURLM_OK)
953 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
954 _("%s failed at %s:%d: `%s'\n"),
955 "curl_multi_add_handle", __FILE__, __LINE__,
956 curl_multi_strerror (mret));
959 bytes_sent = send_prepare (ses );
963 static void send_execute (void *cls,
964 const struct GNUNET_SCHEDULER_TaskContext *tc)
966 static unsigned int handles_last_run;
970 struct Session * cs = NULL;
972 http_task_send = GNUNET_SCHEDULER_NO_TASK;
973 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
979 mret = curl_multi_perform (multi_handle, &running);
980 if (running < handles_last_run)
985 msg = curl_multi_info_read (multi_handle, &running);
986 GNUNET_break (msg != NULL);
989 /* get session for affected curl handle */
990 GNUNET_assert ( msg->easy_handle != NULL );
991 cs = find_session_by_curlhandle (msg->easy_handle);
992 GNUNET_assert ( cs != NULL );
993 GNUNET_assert ( cs->pending_outbound_msg != NULL );
998 if ( (msg->data.result != CURLE_OK) &&
999 (msg->data.result != CURLE_GOT_NOTHING) )
1002 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
1003 _("%s failed for `%s' at %s:%d: `%s'\n"),
1004 "curl_multi_perform",
1005 GNUNET_i2s(&cs->sender),
1008 curl_easy_strerror (msg->data.result));
1009 /* sending msg failed*/
1010 if (( NULL != cs->pending_outbound_msg) && ( NULL != cs->pending_outbound_msg->transmit_cont))
1011 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->sender,GNUNET_SYSERR);
1016 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1017 "Send to peer `%s' completed with code %u\n", GNUNET_i2s(&cs->sender),cs->pending_outbound_msg->http_result_code);
1019 curl_easy_cleanup(cs->curl_handle);
1020 cs->curl_handle=NULL;
1022 /* Calling transmit continuation */
1023 if (( NULL != cs->pending_outbound_msg) && (NULL != cs->pending_outbound_msg->transmit_cont))
1025 /* HTTP 1xx : Last message before here was informational */
1026 if ((cs->pending_outbound_msg->http_result_code >=100) && (cs->pending_outbound_msg->http_result_code < 200))
1027 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->sender,GNUNET_OK);
1028 /* HTTP 2xx: successful operations */
1029 if ((cs->pending_outbound_msg->http_result_code >=200) && (cs->pending_outbound_msg->http_result_code < 300))
1030 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->sender,GNUNET_OK);
1031 /* HTTP 3xx..5xx: error */
1032 if ((cs->pending_outbound_msg->http_result_code >=300) && (cs->pending_outbound_msg->http_result_code < 600))
1033 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->sender,GNUNET_SYSERR);
1035 if (GNUNET_OK != remove_http_message(cs, cs->pending_outbound_msg))
1036 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Message could not be removed from session `%s'", GNUNET_i2s(&cs->sender));
1038 /* send pending messages */
1039 if (cs->pending_outbound_msg != NULL)
1041 send_select_init (cs);
1050 while ( (running > 0) );
1052 handles_last_run = running;
1054 while (mret == CURLM_CALL_MULTI_PERFORM);
1060 * Function setting up file descriptors and scheduling task to run
1061 * @param ses session to send data to
1062 * @return bytes sent to peer
1064 static size_t send_prepare(struct Session* ses )
1070 struct GNUNET_NETWORK_FDSet *grs;
1071 struct GNUNET_NETWORK_FDSet *gws;
1079 mret = curl_multi_fdset (multi_handle, &rs, &ws, &es, &max);
1080 if (mret != CURLM_OK)
1082 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1083 _("%s failed at %s:%d: `%s'\n"),
1084 "curl_multi_fdset", __FILE__, __LINE__,
1085 curl_multi_strerror (mret));
1088 mret = curl_multi_timeout (multi_handle, &to);
1089 if (mret != CURLM_OK)
1091 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1092 _("%s failed at %s:%d: `%s'\n"),
1093 "curl_multi_timeout", __FILE__, __LINE__,
1094 curl_multi_strerror (mret));
1098 grs = GNUNET_NETWORK_fdset_create ();
1099 gws = GNUNET_NETWORK_fdset_create ();
1100 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
1101 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
1102 http_task_send = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1103 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1104 GNUNET_SCHEDULER_NO_TASK,
1105 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),
1110 GNUNET_NETWORK_fdset_destroy (gws);
1111 GNUNET_NETWORK_fdset_destroy (grs);
1113 /* FIXME: return bytes REALLY sent */
1118 * Function that can be used by the transport service to transmit
1119 * a message using the plugin.
1121 * @param cls closure
1122 * @param target who should receive this message
1123 * @param priority how important is the message
1124 * @param msgbuf the message to transmit
1125 * @param msgbuf_size number of bytes in 'msgbuf'
1126 * @param to when should we time out
1127 * @param session which session must be used (or NULL for "any")
1128 * @param addr the address to use (can be NULL if the plugin
1129 * is "on its own" (i.e. re-use existing TCP connection))
1130 * @param addrlen length of the address in bytes
1131 * @param force_address GNUNET_YES if the plugin MUST use the given address,
1132 * otherwise the plugin may use other addresses or
1133 * existing connections (if available)
1134 * @param cont continuation to call once the message has
1135 * been transmitted (or if the transport is ready
1136 * for the next transmission call; or if the
1137 * peer disconnected...)
1138 * @param cont_cls closure for cont
1139 * @return number of bytes used (on the physical network, with overheads);
1140 * -1 on hard errors (i.e. address invalid); 0 is a legal value
1141 * and does NOT mean that the message was not transmitted (DV)
1144 http_plugin_send (void *cls,
1145 const struct GNUNET_PeerIdentity *target,
1148 unsigned int priority,
1149 struct GNUNET_TIME_Relative to,
1150 struct Session *session,
1154 GNUNET_TRANSPORT_TransmitContinuation cont,
1158 struct Session* ses;
1159 struct Session* ses_temp;
1160 struct HTTP_Message * msg;
1161 struct HTTP_Message * tmp;
1166 /* find session for peer */
1167 ses = find_session_by_pi (target);
1169 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Existing session for peer `%s' found\n", GNUNET_i2s(target));
1172 /* create new session object */
1174 ses = create_session(NULL, (struct sockaddr_in *) addr, target);
1175 ses->is_active = GNUNET_YES;
1177 /* Insert session into linked list */
1178 if ( plugin->sessions == NULL)
1180 plugin->sessions = ses;
1181 plugin->session_count = 1;
1183 ses_temp = plugin->sessions;
1184 while ( ses_temp->next != NULL )
1186 ses_temp = ses_temp->next;
1188 if (ses_temp != ses )
1190 ses_temp->next = ses;
1191 plugin->session_count++;
1193 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"New Session `%s' inserted, count %u \n", GNUNET_i2s(target), plugin->session_count);
1196 GNUNET_assert (addr!=NULL);
1199 /* setting url to send to */
1200 if (force_address == GNUNET_YES)
1202 if (addrlen == (sizeof (struct IPv4HttpAddress)))
1204 address = GNUNET_malloc(INET_ADDRSTRLEN + 14 + strlen ((const char *) (&ses->hash)));
1205 inet_ntop(AF_INET,&((struct IPv4HttpAddress *) addr)->ipv4_addr,address,INET_ADDRSTRLEN);
1206 port = ntohs(((struct IPv4HttpAddress *) addr)->u_port);
1207 GNUNET_asprintf(&address,"http://%s:%u/%s",address,port, (char *) (&ses->hash));
1209 else if (addrlen == (sizeof (struct IPv6HttpAddress)))
1211 address = GNUNET_malloc(INET6_ADDRSTRLEN + 14 + strlen ((const char *) (&ses->hash)));
1212 inet_ntop(AF_INET6, &((struct IPv6HttpAddress *) addr)->ipv6_addr,address,INET6_ADDRSTRLEN);
1213 port = ntohs(((struct IPv6HttpAddress *) addr)->u6_port);
1214 GNUNET_asprintf(&address,"http://%s:%u/%s",address,port,(char *) (&ses->hash));
1223 GNUNET_assert (address != NULL);
1226 /* setting up message */
1227 msg = GNUNET_malloc (sizeof (struct HTTP_Message));
1229 msg->len = msgbuf_size;
1231 msg->buf = GNUNET_malloc (msgbuf_size);
1232 msg->dest_url = address;
1233 msg->transmit_cont = cont;
1234 msg->transmit_cont_cls = cont_cls;
1235 memcpy (msg->buf,msgbuf, msgbuf_size);
1237 /* insert created message in list of pending messages */
1238 if (ses->pending_outbound_msg == NULL)
1240 ses->pending_outbound_msg = msg;
1242 tmp = ses->pending_outbound_msg;
1243 while ( NULL != tmp->next)
1252 if (msg == ses->pending_outbound_msg)
1254 bytes_sent = send_select_init (ses);
1263 * Function that can be used to force the plugin to disconnect
1264 * from the given peer and cancel all previous transmissions
1265 * (and their continuationc).
1267 * @param cls closure
1268 * @param target peer from which to disconnect
1271 http_plugin_disconnect (void *cls,
1272 const struct GNUNET_PeerIdentity *target)
1274 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: http_plugin_disconnect\n");
1275 // struct Plugin *plugin = cls;
1281 * Convert the transports address to a nice, human-readable
1284 * @param cls closure
1285 * @param type name of the transport that generated the address
1286 * @param addr one of the addresses of the host, NULL for the last address
1287 * the specific address format depends on the transport
1288 * @param addrlen length of the address
1289 * @param numeric should (IP) addresses be displayed in numeric form?
1290 * @param timeout after how long should we give up?
1291 * @param asc function to call on each string
1292 * @param asc_cls closure for asc
1295 http_plugin_address_pretty_printer (void *cls,
1300 struct GNUNET_TIME_Relative timeout,
1301 GNUNET_TRANSPORT_AddressStringCallback
1304 const struct IPv4HttpAddress *t4;
1305 const struct IPv6HttpAddress *t6;
1306 struct sockaddr_in a4;
1307 struct sockaddr_in6 a6;
1312 if (addrlen == sizeof (struct IPv6HttpAddress))
1314 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1316 a6.sin6_addr = t6->ipv6_addr;
1317 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1318 port = ntohs(t6->u6_port);
1320 else if (addrlen == sizeof (struct IPv4HttpAddress))
1322 address = GNUNET_malloc (INET_ADDRSTRLEN);
1324 a4.sin_addr.s_addr = t4->ipv4_addr;
1325 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1326 port = ntohs(t4->u_port);
1330 /* invalid address */
1331 GNUNET_break_op (0);
1332 asc (asc_cls, NULL);
1336 ret = GNUNET_malloc(strlen(address) +14);
1337 GNUNET_asprintf(&ret,"http://%s:%u/",address,port);
1338 GNUNET_free (address);
1345 * Another peer has suggested an address for this
1346 * peer and transport plugin. Check that this could be a valid
1347 * address. If so, consider adding it to the list
1350 * @param cls closure
1351 * @param addr pointer to the address
1352 * @param addrlen length of addr
1353 * @return GNUNET_OK if this is a plausible address for this peer
1357 http_plugin_address_suggested (void *cls,
1358 void *addr, size_t addrlen)
1360 struct IPv4HttpAddress *v4;
1361 struct IPv6HttpAddress *v6;
1364 if ((addrlen != sizeof (struct IPv4HttpAddress)) &&
1365 (addrlen != sizeof (struct IPv6HttpAddress)))
1367 return GNUNET_SYSERR;
1369 if (addrlen == sizeof (struct IPv4HttpAddress))
1371 v4 = (struct IPv4HttpAddress *) addr;
1372 if (INADDR_LOOPBACK == ntohl(v4->ipv4_addr))
1374 return GNUNET_SYSERR;
1376 port = ntohs (v4->u_port);
1377 if (port != plugin->port_inbound)
1379 return GNUNET_SYSERR;
1384 v6 = (struct IPv6HttpAddress *) addr;
1385 if (IN6_IS_ADDR_LINKLOCAL (&v6->ipv6_addr))
1387 return GNUNET_SYSERR;
1389 port = ntohs (v6->u6_port);
1390 if (port != plugin->port_inbound)
1392 return GNUNET_SYSERR;
1402 * Function called for a quick conversion of the binary address to
1403 * a numeric address. Note that the caller must not free the
1404 * address and that the next call to this function is allowed
1405 * to override the address again.
1407 * @param cls closure
1408 * @param addr binary address
1409 * @param addrlen length of the address
1410 * @return string representing the same address
1413 http_plugin_address_to_string (void *cls,
1417 const struct IPv4HttpAddress *t4;
1418 const struct IPv6HttpAddress *t6;
1419 struct sockaddr_in a4;
1420 struct sockaddr_in6 a6;
1425 if (addrlen == sizeof (struct IPv6HttpAddress))
1427 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1429 a6.sin6_addr = t6->ipv6_addr;
1430 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1431 port = ntohs(t6->u6_port);
1433 else if (addrlen == sizeof (struct IPv4HttpAddress))
1435 address = GNUNET_malloc (INET_ADDRSTRLEN);
1437 a4.sin_addr.s_addr = t4->ipv4_addr;
1438 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1439 port = ntohs(t4->u_port);
1443 /* invalid address */
1447 ret = GNUNET_malloc(strlen(address) +6);
1448 GNUNET_asprintf(&ret,"%s:%u",address,port);
1449 GNUNET_free (address);
1454 * Add the IP of our network interface to the list of
1455 * our external IP addresses.
1457 * @param cls the 'struct Plugin*'
1458 * @param name name of the interface
1459 * @param isDefault do we think this may be our default interface
1460 * @param addr address of the interface
1461 * @param addrlen number of bytes in addr
1462 * @return GNUNET_OK to continue iterating
1465 process_interfaces (void *cls,
1468 const struct sockaddr *addr, socklen_t addrlen)
1470 struct IPv4HttpAddress t4;
1471 struct IPv6HttpAddress t6;
1476 af = addr->sa_family;
1479 if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
1481 /* skip loopback addresses */
1484 t4.ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
1485 t4.u_port = htons (plugin->port_inbound);
1489 else if (af == AF_INET6)
1491 if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
1493 /* skip link local addresses */
1496 if (IN6_IS_ADDR_LOOPBACK (&((struct sockaddr_in6 *) addr)->sin6_addr))
1498 /* skip loopback addresses */
1501 memcpy (&t6.ipv6_addr,
1502 &((struct sockaddr_in6 *) addr)->sin6_addr,
1503 sizeof (struct in6_addr));
1504 t6.u6_port = htons (plugin->port_inbound);
1513 plugin->env->notify_address(plugin->env->cls,"http",arg, args, GNUNET_TIME_UNIT_FOREVER_REL);
1518 * Exit point from the plugin.
1521 libgnunet_plugin_transport_http_done (void *cls)
1523 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
1524 struct Plugin *plugin = api->cls;
1525 struct Session * cs;
1526 struct Session * cs_next;
1529 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unloading http plugin...\n");
1531 if ( http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1533 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v4);
1534 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
1537 if ( http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1539 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v6);
1540 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1543 if ( http_task_send != GNUNET_SCHEDULER_NO_TASK)
1545 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_send);
1546 http_task_send = GNUNET_SCHEDULER_NO_TASK;
1549 if (http_daemon_v4 != NULL)
1551 MHD_stop_daemon (http_daemon_v4);
1552 http_daemon_v4 = NULL;
1554 if (http_daemon_v6 != NULL)
1556 MHD_stop_daemon (http_daemon_v6);
1557 http_daemon_v6 = NULL;
1560 /* free all sessions */
1561 cs = plugin->sessions;
1565 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing session for peer `%s'\n",GNUNET_i2s(&cs->sender));
1569 /* freeing messages */
1570 struct HTTP_Message *cur;
1571 struct HTTP_Message *tmp;
1572 cur = cs->pending_outbound_msg;
1577 if (NULL != cur->buf)
1578 GNUNET_free (cur->buf);
1582 GNUNET_free (cs->pending_inbound_msg->buf);
1583 GNUNET_free (cs->pending_inbound_msg);
1584 GNUNET_free_non_null (cs->addr_inbound);
1585 GNUNET_free_non_null (cs->addr_outbound);
1588 plugin->session_count--;
1592 mret = curl_multi_cleanup(multi_handle);
1593 if ( CURLM_OK != mret)
1594 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed");
1596 GNUNET_free (plugin);
1603 * Entry point for the plugin.
1606 libgnunet_plugin_transport_http_init (void *cls)
1608 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
1609 struct GNUNET_TRANSPORT_PluginFunctions *api;
1610 unsigned int timeout;
1611 struct GNUNET_TIME_Relative gn_timeout;
1612 long long unsigned int port;
1614 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting http plugin...\n");
1616 plugin = GNUNET_malloc (sizeof (struct Plugin));
1618 plugin->sessions = NULL;
1619 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
1621 api->send = &http_plugin_send;
1622 api->disconnect = &http_plugin_disconnect;
1623 api->address_pretty_printer = &http_plugin_address_pretty_printer;
1624 api->check_address = &http_plugin_address_suggested;
1625 api->address_to_string = &http_plugin_address_to_string;
1627 /* Hashing our identity to use it in URLs */
1628 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &my_ascii_hash_ident);
1630 /* Reading port number from config file */
1632 GNUNET_CONFIGURATION_get_value_number (env->cfg,
1638 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1641 ("Require valid port number for transport plugin `%s' in configuration!\n"),
1643 libgnunet_plugin_transport_http_done (api);
1647 GNUNET_assert ((port > 0) && (port <= 65535));
1648 GNUNET_assert (&my_ascii_hash_ident != NULL);
1650 plugin->port_inbound = port;
1651 gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
1652 timeout = ( gn_timeout.value / 1000);
1653 if ((http_daemon_v4 == NULL) && (http_daemon_v6 == NULL) && (port != 0))
1655 http_daemon_v6 = MHD_start_daemon (MHD_USE_IPv6,
1657 &acceptPolicyCallback,
1658 NULL , &accessHandlerCallback, NULL,
1659 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1660 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1661 MHD_OPTION_CONNECTION_TIMEOUT, timeout,
1662 /* FIXME: set correct limit */
1663 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1664 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1666 http_daemon_v4 = MHD_start_daemon (MHD_NO_FLAG,
1668 &acceptPolicyCallback,
1669 NULL , &accessHandlerCallback, NULL,
1670 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1671 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1672 MHD_OPTION_CONNECTION_TIMEOUT, timeout,
1673 /* FIXME: set correct limit */
1674 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1675 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1678 if (http_daemon_v4 != NULL)
1679 http_task_v4 = http_daemon_prepare (http_daemon_v4);
1680 if (http_daemon_v6 != NULL)
1681 http_task_v6 = http_daemon_prepare (http_daemon_v6);
1683 if (http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1684 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 on port %u\n",port);
1685 else if (http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1686 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 on port %u\n",port);
1689 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No MHD was started, transport plugin not functional!\n");
1690 libgnunet_plugin_transport_http_done (api);
1694 /* Initializing cURL */
1695 multi_handle = curl_multi_init();
1696 if ( NULL == multi_handle )
1698 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1700 _("Could not initialize curl multi handle, failed to start http plugin!\n"),
1702 libgnunet_plugin_transport_http_done (api);
1706 GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
1711 /* end of plugin_transport_template.c */