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;
390 * Callback called by MHD when a connection is terminated
392 static void requestCompletedCallback (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
396 cs = *httpSessionCache;
399 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection from peer `%s' was terminated\n",GNUNET_i2s(&cs->sender));
400 /* session set to inactive */
401 cs->is_active = GNUNET_NO;
402 cs->is_put_in_progress = GNUNET_NO;
408 * Check if we are allowed to connect to the given IP.
411 acceptPolicyCallback (void *cls,
412 const struct sockaddr *addr, socklen_t addr_len)
414 /* Every connection is accepted, nothing more to do here */
422 * Process GET or PUT request received via MHD. For
423 * GET, queue response that will send back our pending
424 * messages. For PUT, process incoming data and send
425 * to GNUnet core. In either case, check if a session
426 * already exists and create a new one if not.
429 accessHandlerCallback (void *cls,
430 struct MHD_Connection *session,
434 const char *upload_data,
435 size_t * upload_data_size, void **httpSessionCache)
437 struct MHD_Response *response;
439 struct Session * cs_temp;
440 const union MHD_ConnectionInfo * conn_info;
441 struct sockaddr_in *addrin;
442 struct sockaddr_in6 *addrin6;
443 char address[INET6_ADDRSTRLEN+14];
444 struct GNUNET_PeerIdentity pi_in;
446 struct GNUNET_MessageHeader *gn_msg;
447 int send_error_to_client;
450 send_error_to_client = GNUNET_NO;
452 if ( NULL == *httpSessionCache)
454 /* check url for peer identity */
455 res = GNUNET_CRYPTO_hash_from_string ( &url[1], &(pi_in.hashPubKey));
456 if ( GNUNET_SYSERR == res )
458 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
459 res = MHD_queue_response (session, MHD_HTTP_NOT_FOUND, response);
460 MHD_destroy_response (response);
462 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");
464 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
468 conn_info = MHD_get_connection_info(session, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
469 /* Incoming IPv4 connection */
470 if ( AF_INET == conn_info->client_addr->sin_family)
472 addrin = conn_info->client_addr;
473 inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
475 /* Incoming IPv6 connection */
476 if ( AF_INET6 == conn_info->client_addr->sin_family)
478 addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
479 inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
481 /* find existing session for address */
483 if (plugin->session_count > 0)
485 cs = plugin->sessions;
489 /* Comparison based on ip address */
490 // res = (0 == memcmp(&(conn_info->client_addr->sin_addr),&(cs->addr->sin_addr), sizeof (struct in_addr))) ? GNUNET_YES : GNUNET_NO;
492 /* Comparison based on ip address, port number and address family */
493 // res = (0 == memcmp((conn_info->client_addr),(cs->addr), sizeof (struct sockaddr_in))) ? GNUNET_YES : GNUNET_NO;
495 /* Comparison based on PeerIdentity */
496 res = (0 == memcmp(&pi_in,&(cs->sender), sizeof (struct GNUNET_PeerIdentity))) ? GNUNET_YES : GNUNET_NO;
498 if ( GNUNET_YES == res)
500 /* existing session for this address found */
501 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Session for peer `%s' found\n",GNUNET_i2s(&cs->sender));
507 /* no existing session, create a new one*/
510 /* create new session object */
511 cs = create_session(conn_info->client_addr, NULL, &pi_in);
513 /* Insert session into linked list */
514 if ( plugin->sessions == NULL)
516 plugin->sessions = cs;
517 plugin->session_count = 1;
519 cs_temp = plugin->sessions;
520 while ( cs_temp->next != NULL )
522 cs_temp = cs_temp->next;
527 plugin->session_count++;
529 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"New Session `%s' inserted, count %u \n", GNUNET_i2s(&cs->sender), plugin->session_count);
533 if (*httpSessionCache == NULL)
535 *httpSessionCache = cs;
536 /* Updating session */
537 memcpy(cs->addr_inbound,conn_info->client_addr, sizeof(struct sockaddr_in));
539 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));
543 cs = *httpSessionCache;
545 /* Is it a PUT or a GET request */
546 if ( 0 == strcmp (MHD_HTTP_METHOD_PUT, method) )
549 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_NO))
551 if (cs->pending_inbound_msg->pos !=0 )
553 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
554 _("Incoming message from peer `%s', while existing message with %u bytes was not forwarded to transport'\n"),
555 GNUNET_i2s(&cs->sender), cs->pending_inbound_msg->pos);
556 cs->pending_inbound_msg->pos = 0;
559 cs->is_put_in_progress = GNUNET_YES;
560 cs->is_bad_request = GNUNET_NO;
561 cs->is_active = GNUNET_YES;
565 if ((*upload_data_size > 0) && (cs->is_bad_request != GNUNET_YES))
567 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))
569 /* copy uploaded data to buffer */
570 memcpy(&cs->pending_inbound_msg->buf[cs->pending_inbound_msg->pos],upload_data,*upload_data_size);
571 cs->pending_inbound_msg->pos += *upload_data_size;
572 *upload_data_size = 0;
577 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);
578 cs->is_bad_request = GNUNET_YES;
579 /* (*upload_data_size) bytes not processed */
584 if ((cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_YES))
586 *upload_data_size = 0;
587 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
588 res = MHD_queue_response (session, MHD_HTTP_REQUEST_ENTITY_TOO_LARGE, response);
591 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 413 Request Entity Too Large as PUT Response\n");
592 cs->is_bad_request = GNUNET_NO;
593 cs->is_put_in_progress =GNUNET_NO;
594 cs->pending_inbound_msg->pos = 0;
596 MHD_destroy_response (response);
600 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_NO))
602 send_error_to_client = GNUNET_YES;
603 struct GNUNET_MessageHeader * gn_msg = NULL;
604 /*check message and forward here */
606 if (cs->pending_inbound_msg->pos >= sizeof (struct GNUNET_MessageHeader))
608 gn_msg = GNUNET_malloc (cs->pending_inbound_msg->pos);
609 memcpy (gn_msg,cs->pending_inbound_msg->buf,cs->pending_inbound_msg->pos);
611 if ((ntohs(gn_msg->size) == cs->pending_inbound_msg->pos))
613 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));
614 /* forwarding message to transport */
617 if ( AF_INET == cs->addr_inbound->sin_family)
619 tmp = GNUNET_malloc (INET_ADDRSTRLEN + 14);
620 inet_ntop(AF_INET, &(cs->addr_inbound)->sin_addr,address,INET_ADDRSTRLEN);
621 GNUNET_asprintf(&tmp,"%s:%u",address,ntohs(cs->addr_inbound->sin_port));
623 /* Incoming IPv6 connection */
624 if ( AF_INET6 == cs->addr_inbound->sin_family)
626 tmp = GNUNET_malloc (INET6_ADDRSTRLEN + 14);
627 inet_ntop(AF_INET6, &((struct sockaddr_in6 *) cs->addr_inbound)->sin6_addr,address,INET6_ADDRSTRLEN);
628 GNUNET_asprintf(&tmp,"[%s]:%u",address,ntohs(cs->addr_inbound->sin_port));
633 plugin->env->receive(plugin->env, &(cs->sender), gn_msg, 1, cs , tmp, strlen(tmp));
634 GNUNET_free_non_null(tmp);
636 send_error_to_client = GNUNET_NO;
640 if (send_error_to_client == GNUNET_NO)
642 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
643 res = MHD_queue_response (session, MHD_HTTP_OK, response);
644 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 200 OK as PUT Response\n",HTTP_PUT_RESPONSE, strlen (HTTP_PUT_RESPONSE), res );
645 MHD_destroy_response (response);
649 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Recieved malformed message with %u bytes\n", cs->pending_inbound_msg->pos);
650 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
651 res = MHD_queue_response (session, MHD_HTTP_BAD_REQUEST, response);
652 MHD_destroy_response (response);
653 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 400 BAD REQUEST as PUT Response\n");
656 GNUNET_free_non_null (gn_msg);
657 cs->is_put_in_progress = GNUNET_NO;
658 cs->is_bad_request = GNUNET_NO;
659 cs->pending_inbound_msg->pos = 0;
663 if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
665 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Got GET Request\n");
666 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"URL: `%s'\n",url);
667 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
668 res = MHD_queue_response (session, MHD_HTTP_OK, response);
669 MHD_destroy_response (response);
677 * Call MHD to process pending requests and then go back
678 * and schedule the next run.
680 static void http_daemon_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
683 * Function that queries MHD's select sets and
684 * starts the task waiting for them.
686 static GNUNET_SCHEDULER_TaskIdentifier
687 http_daemon_prepare (struct MHD_Daemon *daemon_handle)
689 GNUNET_SCHEDULER_TaskIdentifier ret;
693 struct GNUNET_NETWORK_FDSet *wrs;
694 struct GNUNET_NETWORK_FDSet *wws;
695 struct GNUNET_NETWORK_FDSet *wes;
697 unsigned long long timeout;
699 struct GNUNET_TIME_Relative tv;
704 wrs = GNUNET_NETWORK_fdset_create ();
705 wes = GNUNET_NETWORK_fdset_create ();
706 wws = GNUNET_NETWORK_fdset_create ();
708 GNUNET_assert (MHD_YES ==
709 MHD_get_fdset (daemon_handle,
714 haveto = MHD_get_timeout (daemon_handle, &timeout);
715 if (haveto == MHD_YES)
716 tv.value = (uint64_t) timeout;
718 tv = GNUNET_TIME_UNIT_FOREVER_REL;
719 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
720 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
721 GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
722 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
723 GNUNET_SCHEDULER_PRIORITY_HIGH,
724 GNUNET_SCHEDULER_NO_TASK,
730 GNUNET_NETWORK_fdset_destroy (wrs);
731 GNUNET_NETWORK_fdset_destroy (wws);
732 GNUNET_NETWORK_fdset_destroy (wes);
737 * Call MHD to process pending requests and then go back
738 * and schedule the next run.
740 static void http_daemon_run (void *cls,
741 const struct GNUNET_SCHEDULER_TaskContext *tc)
743 struct MHD_Daemon *daemon_handle = cls;
745 if (daemon_handle == http_daemon_v4)
746 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
748 if (daemon_handle == http_daemon_v6)
749 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
751 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
754 GNUNET_assert (MHD_YES == MHD_run (daemon_handle));
755 if (daemon_handle == http_daemon_v4)
756 http_task_v4 = http_daemon_prepare (daemon_handle);
757 if (daemon_handle == http_daemon_v6)
758 http_task_v6 = http_daemon_prepare (daemon_handle);
763 * Removes a message from the linked list of messages
764 * @param ses session to remove message from
765 * @param msg message to remove
766 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
769 static int remove_http_message(struct Session * ses, struct HTTP_Message * msg)
771 struct HTTP_Message * cur;
772 struct HTTP_Message * next;
774 cur = ses->pending_outbound_msg;
778 return GNUNET_SYSERR;
782 ses->pending_outbound_msg = cur->next;
783 GNUNET_free (cur->buf);
784 GNUNET_free (cur->dest_url);
790 while (cur->next!=msg)
792 if (cur->next != NULL)
795 return GNUNET_SYSERR;
798 cur->next = cur->next->next;
799 GNUNET_free (cur->next->buf);
800 GNUNET_free (cur->next->dest_url);
801 GNUNET_free (cur->next);
807 static size_t header_function( void *ptr, size_t size, size_t nmemb, void *stream)
810 unsigned int len = size * nmemb;
811 struct Session * ses = stream;
813 tmp = GNUNET_malloc ( len+1 );
815 if (tmp[len-2] == 13)
818 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s'\n",tmp);
820 if (0==strcmp (tmp,"HTTP/1.1 100 Continue"))
822 ses->pending_outbound_msg->http_result_code=100;
824 if (0==strcmp (tmp,"HTTP/1.1 200 OK"))
826 ses->pending_outbound_msg->http_result_code=200;
828 if (0==strcmp (tmp,"HTTP/1.1 400 Bad Request"))
830 ses->pending_outbound_msg->http_result_code=400;
832 if (0==strcmp (tmp,"HTTP/1.1 404 Not Found"))
834 ses->pending_outbound_msg->http_result_code=404;
836 if (0==strcmp (tmp,"HTTP/1.1 413 Request Entity Too Large"))
838 ses->pending_outbound_msg->http_result_code=413;
845 * Callback method used with libcurl
846 * Method is called when libcurl needs to read data during sending
847 * @param stream pointer where to write data
848 * @param size size of an individual element
849 * @param nmemb count of elements that can be written to the buffer
850 * @param ptr source pointer, passed to the libcurl handle
851 * @return bytes written to stream
853 static size_t send_read_callback(void *stream, size_t size, size_t nmemb, void *ptr)
855 struct Session * ses = ptr;
856 struct HTTP_Message * msg = ses->pending_outbound_msg;
857 unsigned int bytes_sent;
862 if (( msg->pos < msg->len))
864 /* data fit in buffer */
865 if ((msg->len - msg->pos) <= (size * nmemb))
867 len = (msg->len - msg->pos);
868 memcpy(stream, &msg->buf[msg->pos], len);
875 memcpy(stream, &msg->buf[msg->pos], len);
880 /* no data to send */
889 * Callback method used with libcurl
890 * Method is called when libcurl needs to write data during sending
891 * @param stream pointer where to write data
892 * @param size size of an individual element
893 * @param nmemb count of elements that can be written to the buffer
894 * @param ptr destination pointer, passed to the libcurl handle
895 * @return bytes read from stream
897 static size_t send_write_callback( void *stream, size_t size, size_t nmemb, void *ptr)
899 char * data = malloc(size*nmemb +1);
901 memcpy( data, stream, size*nmemb);
902 data[size*nmemb] = '\0';
903 /* Just a dummy print for the response recieved for the PUT message */
904 /* GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Recieved %u bytes: `%s' \n", size * nmemb, data); */
906 return (size * nmemb);
911 * Function setting up file descriptors and scheduling task to run
912 * @param session session to send data to
913 * @return bytes sent to peer
915 static size_t send_prepare(struct Session* ses );
918 * Function setting up curl handle and selecting message to send
919 * @param ses session to send data to
920 * @return bytes sent to peer
922 static ssize_t send_select_init (struct Session* ses )
926 struct HTTP_Message * msg;
928 if ( NULL == ses->curl_handle)
929 ses->curl_handle = curl_easy_init();
930 if( NULL == ses->curl_handle)
932 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Getting cURL handle failed\n");
935 msg = ses->pending_outbound_msg;
940 curl_easy_setopt(ses->curl_handle, CURLOPT_VERBOSE, 1L);
942 curl_easy_setopt(ses->curl_handle, CURLOPT_URL, msg->dest_url);
943 curl_easy_setopt(ses->curl_handle, CURLOPT_PUT, 1L);
944 curl_easy_setopt(ses->curl_handle, CURLOPT_HEADERFUNCTION, &header_function);
945 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEHEADER, ses);
946 curl_easy_setopt(ses->curl_handle, CURLOPT_READFUNCTION, send_read_callback);
947 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
948 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEFUNCTION, send_write_callback);
949 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
950 curl_easy_setopt(ses->curl_handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t) msg->len);
951 curl_easy_setopt(ses->curl_handle, CURLOPT_TIMEOUT, (long) (timeout.value / 1000 ));
952 curl_easy_setopt(ses->curl_handle, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
953 curl_easy_setopt(ses->curl_handle, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
955 mret = curl_multi_add_handle(multi_handle, ses->curl_handle);
956 if (mret != CURLM_OK)
958 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
959 _("%s failed at %s:%d: `%s'\n"),
960 "curl_multi_add_handle", __FILE__, __LINE__,
961 curl_multi_strerror (mret));
964 bytes_sent = send_prepare (ses );
968 static void send_execute (void *cls,
969 const struct GNUNET_SCHEDULER_TaskContext *tc)
975 struct Session * cs = NULL;
977 http_task_send = GNUNET_SCHEDULER_NO_TASK;
978 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
984 mret = curl_multi_perform (multi_handle, &running);
990 msg = curl_multi_info_read (multi_handle, &running);
991 GNUNET_break (msg != NULL);
994 /* get session for affected curl handle */
995 GNUNET_assert ( msg->easy_handle != NULL );
996 cs = find_session_by_curlhandle (msg->easy_handle);
997 GNUNET_assert ( cs != NULL );
998 GNUNET_assert ( cs->pending_outbound_msg != NULL );
1003 if ( (msg->data.result != CURLE_OK) &&
1004 (msg->data.result != CURLE_GOT_NOTHING) )
1007 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
1008 _("%s failed for `%s' at %s:%d: `%s'\n"),
1009 "curl_multi_perform",
1010 GNUNET_i2s(&cs->sender),
1013 curl_easy_strerror (msg->data.result));
1014 /* sending msg failed*/
1015 if (( NULL != cs->pending_outbound_msg) && ( NULL != cs->pending_outbound_msg->transmit_cont))
1016 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->sender,GNUNET_SYSERR);
1021 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1022 "Send to peer `%s' completed with code %u\n", GNUNET_i2s(&cs->sender),cs->pending_outbound_msg->http_result_code);
1024 curl_easy_cleanup(cs->curl_handle);
1025 cs->curl_handle=NULL;
1027 /* Calling transmit continuation */
1028 if (( NULL != cs->pending_outbound_msg) && (NULL != cs->pending_outbound_msg->transmit_cont))
1030 /* HTTP 1xx : Last message before here was informational */
1031 if ((cs->pending_outbound_msg->http_result_code >=100) && (cs->pending_outbound_msg->http_result_code < 200))
1032 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->sender,GNUNET_OK);
1033 /* HTTP 2xx: successful operations */
1034 if ((cs->pending_outbound_msg->http_result_code >=200) && (cs->pending_outbound_msg->http_result_code < 300))
1035 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->sender,GNUNET_OK);
1036 /* HTTP 3xx..5xx: error */
1037 if ((cs->pending_outbound_msg->http_result_code >=300) && (cs->pending_outbound_msg->http_result_code < 600))
1038 cs->pending_outbound_msg->transmit_cont (cs->pending_outbound_msg->transmit_cont_cls,&cs->sender,GNUNET_SYSERR);
1040 if (GNUNET_OK != remove_http_message(cs, cs->pending_outbound_msg))
1041 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Message could not be removed from session `%s'", GNUNET_i2s(&cs->sender));
1043 /* send pending messages */
1044 if (cs->pending_outbound_msg != NULL)
1046 send_select_init (cs);
1055 while ( (running > 0) );
1058 while (mret == CURLM_CALL_MULTI_PERFORM);
1064 * Function setting up file descriptors and scheduling task to run
1065 * @param ses session to send data to
1066 * @return bytes sent to peer
1068 static size_t send_prepare(struct Session* ses )
1074 struct GNUNET_NETWORK_FDSet *grs;
1075 struct GNUNET_NETWORK_FDSet *gws;
1083 mret = curl_multi_fdset (multi_handle, &rs, &ws, &es, &max);
1084 if (mret != CURLM_OK)
1086 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1087 _("%s failed at %s:%d: `%s'\n"),
1088 "curl_multi_fdset", __FILE__, __LINE__,
1089 curl_multi_strerror (mret));
1092 mret = curl_multi_timeout (multi_handle, &to);
1093 if (mret != CURLM_OK)
1095 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1096 _("%s failed at %s:%d: `%s'\n"),
1097 "curl_multi_timeout", __FILE__, __LINE__,
1098 curl_multi_strerror (mret));
1102 grs = GNUNET_NETWORK_fdset_create ();
1103 gws = GNUNET_NETWORK_fdset_create ();
1104 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
1105 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
1106 http_task_send = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1107 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1108 GNUNET_SCHEDULER_NO_TASK,
1109 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),
1114 GNUNET_NETWORK_fdset_destroy (gws);
1115 GNUNET_NETWORK_fdset_destroy (grs);
1117 /* FIXME: return bytes REALLY sent */
1122 * Function that can be used by the transport service to transmit
1123 * a message using the plugin.
1125 * @param cls closure
1126 * @param target who should receive this message
1127 * @param priority how important is the message
1128 * @param msgbuf the message to transmit
1129 * @param msgbuf_size number of bytes in 'msgbuf'
1130 * @param to when should we time out
1131 * @param session which session must be used (or NULL for "any")
1132 * @param addr the address to use (can be NULL if the plugin
1133 * is "on its own" (i.e. re-use existing TCP connection))
1134 * @param addrlen length of the address in bytes
1135 * @param force_address GNUNET_YES if the plugin MUST use the given address,
1136 * otherwise the plugin may use other addresses or
1137 * existing connections (if available)
1138 * @param cont continuation to call once the message has
1139 * been transmitted (or if the transport is ready
1140 * for the next transmission call; or if the
1141 * peer disconnected...)
1142 * @param cont_cls closure for cont
1143 * @return number of bytes used (on the physical network, with overheads);
1144 * -1 on hard errors (i.e. address invalid); 0 is a legal value
1145 * and does NOT mean that the message was not transmitted (DV)
1148 http_plugin_send (void *cls,
1149 const struct GNUNET_PeerIdentity *target,
1152 unsigned int priority,
1153 struct GNUNET_TIME_Relative to,
1154 struct Session *session,
1158 GNUNET_TRANSPORT_TransmitContinuation cont,
1162 struct Session* ses;
1163 struct Session* ses_temp;
1164 struct HTTP_Message * msg;
1165 struct HTTP_Message * tmp;
1170 /* find session for peer */
1171 ses = find_session_by_pi (target);
1173 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Existing session for peer `%s' found\n", GNUNET_i2s(target));
1176 /* create new session object */
1178 ses = create_session(NULL, (struct sockaddr_in *) addr, target);
1179 ses->is_active = GNUNET_YES;
1181 /* Insert session into linked list */
1182 if ( plugin->sessions == NULL)
1184 plugin->sessions = ses;
1185 plugin->session_count = 1;
1187 ses_temp = plugin->sessions;
1188 while ( ses_temp->next != NULL )
1190 ses_temp = ses_temp->next;
1192 if (ses_temp != ses )
1194 ses_temp->next = ses;
1195 plugin->session_count++;
1197 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"New Session `%s' inserted, count %u \n", GNUNET_i2s(target), plugin->session_count);
1200 GNUNET_assert (addr!=NULL);
1203 /* setting url to send to */
1204 if (force_address == GNUNET_YES)
1206 if (addrlen == (sizeof (struct IPv4HttpAddress)))
1208 address = GNUNET_malloc(INET_ADDRSTRLEN + 14 + strlen ((const char *) (&ses->hash)));
1209 inet_ntop(AF_INET,&((struct IPv4HttpAddress *) addr)->ipv4_addr,address,INET_ADDRSTRLEN);
1210 port = ntohs(((struct IPv4HttpAddress *) addr)->u_port);
1211 GNUNET_asprintf(&address,"http://%s:%u/%s",address,port, (char *) (&ses->hash));
1213 else if (addrlen == (sizeof (struct IPv6HttpAddress)))
1215 address = GNUNET_malloc(INET6_ADDRSTRLEN + 14 + strlen ((const char *) (&ses->hash)));
1216 inet_ntop(AF_INET6, &((struct IPv6HttpAddress *) addr)->ipv6_addr,address,INET6_ADDRSTRLEN);
1217 port = ntohs(((struct IPv6HttpAddress *) addr)->u6_port);
1218 GNUNET_asprintf(&address,"http://%s:%u/%s",address,port,(char *) (&ses->hash));
1227 GNUNET_assert (address != NULL);
1230 /* setting up message */
1231 msg = GNUNET_malloc (sizeof (struct HTTP_Message));
1233 msg->len = msgbuf_size;
1235 msg->buf = GNUNET_malloc (msgbuf_size);
1236 msg->dest_url = address;
1237 msg->transmit_cont = cont;
1238 msg->transmit_cont_cls = cont_cls;
1239 memcpy (msg->buf,msgbuf, msgbuf_size);
1241 /* insert created message in list of pending messages */
1242 if (ses->pending_outbound_msg == NULL)
1244 ses->pending_outbound_msg = msg;
1246 tmp = ses->pending_outbound_msg;
1247 while ( NULL != tmp->next)
1256 if (msg == ses->pending_outbound_msg)
1258 bytes_sent = send_select_init (ses);
1267 * Function that can be used to force the plugin to disconnect
1268 * from the given peer and cancel all previous transmissions
1269 * (and their continuationc).
1271 * @param cls closure
1272 * @param target peer from which to disconnect
1275 http_plugin_disconnect (void *cls,
1276 const struct GNUNET_PeerIdentity *target)
1278 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: http_plugin_disconnect\n");
1279 // struct Plugin *plugin = cls;
1285 * Convert the transports address to a nice, human-readable
1288 * @param cls closure
1289 * @param type name of the transport that generated the address
1290 * @param addr one of the addresses of the host, NULL for the last address
1291 * the specific address format depends on the transport
1292 * @param addrlen length of the address
1293 * @param numeric should (IP) addresses be displayed in numeric form?
1294 * @param timeout after how long should we give up?
1295 * @param asc function to call on each string
1296 * @param asc_cls closure for asc
1299 http_plugin_address_pretty_printer (void *cls,
1304 struct GNUNET_TIME_Relative timeout,
1305 GNUNET_TRANSPORT_AddressStringCallback
1308 const struct IPv4HttpAddress *t4;
1309 const struct IPv6HttpAddress *t6;
1310 struct sockaddr_in a4;
1311 struct sockaddr_in6 a6;
1316 if (addrlen == sizeof (struct IPv6HttpAddress))
1318 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1320 a6.sin6_addr = t6->ipv6_addr;
1321 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1322 port = ntohs(t6->u6_port);
1324 else if (addrlen == sizeof (struct IPv4HttpAddress))
1326 address = GNUNET_malloc (INET_ADDRSTRLEN);
1328 a4.sin_addr.s_addr = t4->ipv4_addr;
1329 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1330 port = ntohs(t4->u_port);
1334 /* invalid address */
1335 GNUNET_break_op (0);
1336 asc (asc_cls, NULL);
1340 ret = GNUNET_malloc(strlen(address) +14);
1341 GNUNET_asprintf(&ret,"http://%s:%u/",address,port);
1342 GNUNET_free (address);
1349 * Another peer has suggested an address for this
1350 * peer and transport plugin. Check that this could be a valid
1351 * address. If so, consider adding it to the list
1354 * @param cls closure
1355 * @param addr pointer to the address
1356 * @param addrlen length of addr
1357 * @return GNUNET_OK if this is a plausible address for this peer
1361 http_plugin_address_suggested (void *cls,
1362 void *addr, size_t addrlen)
1364 struct IPv4HttpAddress *v4;
1365 struct IPv6HttpAddress *v6;
1368 if ((addrlen != sizeof (struct IPv4HttpAddress)) &&
1369 (addrlen != sizeof (struct IPv6HttpAddress)))
1371 return GNUNET_SYSERR;
1373 if (addrlen == sizeof (struct IPv4HttpAddress))
1375 v4 = (struct IPv4HttpAddress *) addr;
1376 if (INADDR_LOOPBACK == ntohl(v4->ipv4_addr))
1378 return GNUNET_SYSERR;
1380 port = ntohs (v4->u_port);
1381 if (port != plugin->port_inbound)
1383 return GNUNET_SYSERR;
1388 v6 = (struct IPv6HttpAddress *) addr;
1389 if (IN6_IS_ADDR_LINKLOCAL (&v6->ipv6_addr))
1391 return GNUNET_SYSERR;
1393 port = ntohs (v6->u6_port);
1394 if (port != plugin->port_inbound)
1396 return GNUNET_SYSERR;
1406 * Function called for a quick conversion of the binary address to
1407 * a numeric address. Note that the caller must not free the
1408 * address and that the next call to this function is allowed
1409 * to override the address again.
1411 * @param cls closure
1412 * @param addr binary address
1413 * @param addrlen length of the address
1414 * @return string representing the same address
1417 http_plugin_address_to_string (void *cls,
1421 const struct IPv4HttpAddress *t4;
1422 const struct IPv6HttpAddress *t6;
1423 struct sockaddr_in a4;
1424 struct sockaddr_in6 a6;
1429 if (addrlen == sizeof (struct IPv6HttpAddress))
1431 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1433 a6.sin6_addr = t6->ipv6_addr;
1434 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1435 port = ntohs(t6->u6_port);
1437 else if (addrlen == sizeof (struct IPv4HttpAddress))
1439 address = GNUNET_malloc (INET_ADDRSTRLEN);
1441 a4.sin_addr.s_addr = t4->ipv4_addr;
1442 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1443 port = ntohs(t4->u_port);
1447 /* invalid address */
1451 ret = GNUNET_malloc(strlen(address) +6);
1452 GNUNET_asprintf(&ret,"%s:%u",address,port);
1453 GNUNET_free (address);
1458 * Add the IP of our network interface to the list of
1459 * our external IP addresses.
1461 * @param cls the 'struct Plugin*'
1462 * @param name name of the interface
1463 * @param isDefault do we think this may be our default interface
1464 * @param addr address of the interface
1465 * @param addrlen number of bytes in addr
1466 * @return GNUNET_OK to continue iterating
1469 process_interfaces (void *cls,
1472 const struct sockaddr *addr, socklen_t addrlen)
1474 struct IPv4HttpAddress t4;
1475 struct IPv6HttpAddress t6;
1480 af = addr->sa_family;
1483 if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
1485 /* skip loopback addresses */
1488 t4.ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
1489 t4.u_port = htons (plugin->port_inbound);
1493 else if (af == AF_INET6)
1495 if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
1497 /* skip link local addresses */
1500 if (IN6_IS_ADDR_LOOPBACK (&((struct sockaddr_in6 *) addr)->sin6_addr))
1502 /* skip loopback addresses */
1505 memcpy (&t6.ipv6_addr,
1506 &((struct sockaddr_in6 *) addr)->sin6_addr,
1507 sizeof (struct in6_addr));
1508 t6.u6_port = htons (plugin->port_inbound);
1517 plugin->env->notify_address(plugin->env->cls,"http",arg, args, GNUNET_TIME_UNIT_FOREVER_REL);
1522 * Exit point from the plugin.
1525 libgnunet_plugin_transport_http_done (void *cls)
1527 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
1528 struct Plugin *plugin = api->cls;
1529 struct Session * cs;
1530 struct Session * cs_next;
1533 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unloading http plugin...\n");
1535 if ( http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1537 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v4);
1538 http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
1541 if ( http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1543 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_v6);
1544 http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1547 if ( http_task_send != GNUNET_SCHEDULER_NO_TASK)
1549 GNUNET_SCHEDULER_cancel(plugin->env->sched, http_task_send);
1550 http_task_send = GNUNET_SCHEDULER_NO_TASK;
1553 if (http_daemon_v4 != NULL)
1555 MHD_stop_daemon (http_daemon_v4);
1556 http_daemon_v4 = NULL;
1558 if (http_daemon_v6 != NULL)
1560 MHD_stop_daemon (http_daemon_v6);
1561 http_daemon_v6 = NULL;
1564 mret = curl_multi_cleanup(multi_handle);
1565 if ( CURLM_OK != mret)
1566 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed");
1568 /* free all sessions */
1569 cs = plugin->sessions;
1573 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing session for peer `%s'\n",GNUNET_i2s(&cs->sender));
1577 /* freeing messages */
1578 struct HTTP_Message *cur;
1579 struct HTTP_Message *tmp;
1580 cur = cs->pending_outbound_msg;
1585 if (NULL != cur->buf)
1586 GNUNET_free (cur->buf);
1590 GNUNET_free (cs->pending_inbound_msg->buf);
1591 GNUNET_free (cs->pending_inbound_msg);
1592 GNUNET_free_non_null (cs->addr_inbound);
1593 GNUNET_free_non_null (cs->addr_outbound);
1596 plugin->session_count--;
1600 GNUNET_free (plugin);
1607 * Entry point for the plugin.
1610 libgnunet_plugin_transport_http_init (void *cls)
1612 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
1613 struct GNUNET_TRANSPORT_PluginFunctions *api;
1614 unsigned int timeout;
1615 struct GNUNET_TIME_Relative gn_timeout;
1616 long long unsigned int port;
1618 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting http plugin...\n");
1620 plugin = GNUNET_malloc (sizeof (struct Plugin));
1622 plugin->sessions = NULL;
1623 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
1625 api->send = &http_plugin_send;
1626 api->disconnect = &http_plugin_disconnect;
1627 api->address_pretty_printer = &http_plugin_address_pretty_printer;
1628 api->check_address = &http_plugin_address_suggested;
1629 api->address_to_string = &http_plugin_address_to_string;
1631 /* Hashing our identity to use it in URLs */
1632 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &my_ascii_hash_ident);
1634 /* Reading port number from config file */
1636 GNUNET_CONFIGURATION_get_value_number (env->cfg,
1642 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1645 ("Require valid port number for transport plugin `%s' in configuration!\n"),
1647 libgnunet_plugin_transport_http_done (api);
1651 GNUNET_assert ((port > 0) && (port <= 65535));
1652 GNUNET_assert (&my_ascii_hash_ident != NULL);
1654 plugin->port_inbound = port;
1655 gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
1656 timeout = ( gn_timeout.value / 1000);
1657 if ((http_daemon_v4 == NULL) && (http_daemon_v6 == NULL) && (port != 0))
1659 http_daemon_v6 = MHD_start_daemon (MHD_USE_IPv6,
1661 &acceptPolicyCallback,
1662 NULL , &accessHandlerCallback, NULL,
1663 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1664 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1665 MHD_OPTION_CONNECTION_TIMEOUT, timeout,
1666 /* FIXME: set correct limit */
1667 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1668 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1670 http_daemon_v4 = MHD_start_daemon (MHD_NO_FLAG,
1672 &acceptPolicyCallback,
1673 NULL , &accessHandlerCallback, NULL,
1674 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1675 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1676 MHD_OPTION_CONNECTION_TIMEOUT, timeout,
1677 /* FIXME: set correct limit */
1678 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1679 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1682 if (http_daemon_v4 != NULL)
1683 http_task_v4 = http_daemon_prepare (http_daemon_v4);
1684 if (http_daemon_v6 != NULL)
1685 http_task_v6 = http_daemon_prepare (http_daemon_v6);
1687 if (http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1688 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 on port %u\n",port);
1689 else if (http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1690 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 on port %u\n",port);
1693 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No MHD was started, transport plugin not functional!\n");
1694 libgnunet_plugin_transport_http_done (api);
1698 /* Initializing cURL */
1699 multi_handle = curl_multi_init();
1700 if ( NULL == multi_handle )
1702 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1704 _("Could not initialize curl multi handle, failed to start http plugin!\n"),
1706 libgnunet_plugin_transport_http_done (api);
1710 GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
1715 /* end of plugin_transport_template.c */