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 * Did we initiate the connection (GNUNET_YES) or the other peer (GNUNET_NO)?
204 * Is the connection active (GNUNET_YES) or terminated (GNUNET_NO)?
209 * At what time did we reset last_received last?
211 struct GNUNET_TIME_Absolute last_quota_update;
214 * How many bytes have we received since the "last_quota_update"
217 uint64_t last_received;
220 * Number of bytes per ms that this peer is allowed
226 * Is there a HTTP/PUT in progress?
228 int is_put_in_progress;
231 * Is the http request invalid?
238 struct GNUNET_CRYPTO_HashAsciiEncoded hash;
241 * Head of dll used to store outbound messages
243 struct HTTP_Message * pending_outbound_msg_head;
246 * Tail of dll used to store outbound messages
248 struct HTTP_Message * pending_outbound_msg_tail;
253 struct HTTP_Message * pending_inbound_msg;
256 * curl handle for outbound transmissions
261 * Message tokenizer for incoming data
263 struct GNUNET_SERVER_MessageStreamTokenizer * msgtok;
267 * Encapsulation of all of the state of the plugin.
274 struct GNUNET_TRANSPORT_PluginEnvironment *env;
276 unsigned int port_inbound;
279 * Hashmap for all existing sessions.
281 struct GNUNET_CONTAINER_MultiHashMap *sessions;
284 * Daemon for listening for new IPv4 connections.
286 struct MHD_Daemon *http_daemon_v4;
289 * Daemon for listening for new IPv6connections.
291 struct MHD_Daemon *http_daemon_v6;
294 * Our primary task for http daemon handling IPv4 connections
296 GNUNET_SCHEDULER_TaskIdentifier http_task_v4;
299 * Our primary task for http daemon handling IPv6 connections
301 GNUNET_SCHEDULER_TaskIdentifier http_task_v6;
304 * The task sending data
306 GNUNET_SCHEDULER_TaskIdentifier http_task_send;
311 CURLM * multi_handle;
314 * Our ASCII encoded, hashed peer identity
315 * This string is used to distinguish between connections and is added to the urls
317 struct GNUNET_CRYPTO_HashAsciiEncoded my_ascii_hash_ident;
321 * Create a new session
323 * @param addr_in address the peer is using inbound
324 * @param addr_out address the peer is using outbound
325 * @param peer identity
326 * @return created session object
328 static struct Session * create_session (void * cls, char * addr_in, size_t addrlen_in, char * addr_out, size_t addrlen_out, const struct GNUNET_PeerIdentity *peer)
330 struct Plugin *plugin = cls;
331 struct Session * ses = GNUNET_malloc ( sizeof( struct Session) );
333 GNUNET_assert(cls !=NULL);
336 ses->addr_in = GNUNET_malloc (addrlen_in);
337 ses->addr_in_len = addrlen_in;
338 memcpy(ses->addr_in,addr_in,addrlen_in);
341 if (addrlen_out != 0)
343 ses->addr_out = GNUNET_malloc (addrlen_out);
344 ses->addr_out_len = addrlen_out;
345 memcpy(ses->addr_out,addr_out,addrlen_out);
347 ses->plugin = plugin;
348 memcpy(&ses->partner, peer, sizeof (struct GNUNET_PeerIdentity));
349 GNUNET_CRYPTO_hash_to_enc(&ses->partner.hashPubKey,&(ses->hash));
350 ses->is_active = GNUNET_NO;
351 ses->pending_inbound_msg = GNUNET_malloc( sizeof (struct HTTP_Message));
352 ses->pending_inbound_msg->buf = GNUNET_malloc(GNUNET_SERVER_MAX_MESSAGE_SIZE);
353 ses->pending_inbound_msg->len = GNUNET_SERVER_MAX_MESSAGE_SIZE;
354 ses->pending_inbound_msg->pos = 0;
360 * Callback called by MHD when a connection is terminated
362 static void requestCompletedCallback (void *cls, struct MHD_Connection * connection, void **httpSessionCache)
366 cs = *httpSessionCache;
369 /*GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Connection from peer `%s' was terminated\n",GNUNET_i2s(&cs->partner));*/
370 /* session set to inactive */
371 cs->is_active = GNUNET_NO;
372 cs->is_put_in_progress = GNUNET_NO;
376 static void messageTokenizerCallback (void *cls,
378 const struct GNUNET_MessageHeader *message)
380 struct Session * cs = cls;
381 GNUNET_assert(cs != NULL);
383 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
384 "Received message with type %u and size %u from `%s'\n",
385 ntohs(message->type),
386 ntohs(message->size),
387 GNUNET_i2s(&(cs->partner)));
388 cs->plugin->env->receive(cs->plugin->env->cls,
395 * Check if ip is allowed to connect.
398 acceptPolicyCallback (void *cls,
399 const struct sockaddr *addr, socklen_t addr_len)
402 struct Plugin *plugin = cls;
404 /* Every connection is accepted, nothing more to do here */
409 * Process GET or PUT request received via MHD. For
410 * GET, queue response that will send back our pending
411 * messages. For PUT, process incoming data and send
412 * to GNUnet core. In either case, check if a session
413 * already exists and create a new one if not.
416 accessHandlerCallback (void *cls,
417 struct MHD_Connection *session,
421 const char *upload_data,
422 size_t * upload_data_size, void **httpSessionCache)
424 struct Plugin *plugin = cls;
425 struct MHD_Response *response;
427 const union MHD_ConnectionInfo * conn_info;
428 struct sockaddr_in *addrin;
429 struct sockaddr_in6 *addrin6;
430 char address[INET6_ADDRSTRLEN+14];
431 struct GNUNET_PeerIdentity pi_in;
433 struct GNUNET_MessageHeader *cur_msg;
434 int send_error_to_client;
435 struct IPv4HttpAddress ipv4addr;
436 struct IPv6HttpAddress ipv6addr;
438 GNUNET_assert(cls !=NULL);
440 send_error_to_client = GNUNET_NO;
442 if ( NULL == *httpSessionCache)
444 /* check url for peer identity */
445 res = GNUNET_CRYPTO_hash_from_string ( &url[1], &(pi_in.hashPubKey));
446 if ( GNUNET_SYSERR == res )
448 response = MHD_create_response_from_data (strlen (HTTP_ERROR_RESPONSE),HTTP_ERROR_RESPONSE, MHD_NO, MHD_NO);
449 res = MHD_queue_response (session, MHD_HTTP_NOT_FOUND, response);
450 MHD_destroy_response (response);
452 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, sent HTTP 1.1/404\n");
454 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Peer has no valid ident, could not send error\n");
458 conn_info = MHD_get_connection_info(session, MHD_CONNECTION_INFO_CLIENT_ADDRESS );
459 /* Incoming IPv4 connection */
460 if ( AF_INET == conn_info->client_addr->sin_family)
462 addrin = conn_info->client_addr;
463 inet_ntop(addrin->sin_family, &(addrin->sin_addr),address,INET_ADDRSTRLEN);
464 memcpy(&ipv4addr.ipv4_addr,&(addrin->sin_addr),sizeof(struct in_addr));
465 ipv4addr.u_port = addrin->sin_port;
467 /* Incoming IPv6 connection */
468 if ( AF_INET6 == conn_info->client_addr->sin_family)
470 addrin6 = (struct sockaddr_in6 *) conn_info->client_addr;
471 inet_ntop(addrin6->sin6_family, &(addrin6->sin6_addr),address,INET6_ADDRSTRLEN);
472 memcpy(&ipv6addr.ipv6_addr,&(addrin6->sin6_addr),sizeof(struct in_addr));
473 ipv6addr.u6_port = addrin6->sin6_port;
475 /* find existing session for address */
476 cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &pi_in.hashPubKey);
477 /* no existing session, create a new one*/
480 /* create new session object */
481 if ( AF_INET6 == conn_info->client_addr->sin_family)
482 cs = create_session(plugin, (char *) &ipv6addr, sizeof(struct IPv6HttpAddress),NULL, 0, &pi_in);
483 if ( AF_INET == conn_info->client_addr->sin_family)
484 cs = create_session(plugin, (char *) &ipv4addr, sizeof(struct IPv4HttpAddress),NULL, 0, &pi_in);
486 /* Insert session into hashmap */
487 GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
488 &cs->partner.hashPubKey,
490 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
492 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"New Session for peer `%s' inserted\n", GNUNET_i2s(&cs->partner));
495 /* Set closure and update current session*/
496 if (*httpSessionCache == NULL)
498 *httpSessionCache = cs;
499 /* Updating session */
501 memcpy(cs->addr_inbound,conn_info->client_addr, sizeof(struct sockaddr_in));
502 if ( AF_INET == cs->addr_inbound->sin_family)
504 GNUNET_asprintf(&cs->addr_inbound_str,"%s:%u",address,ntohs(cs->addr_inbound->sin_port));
507 if ( AF_INET6 == cs->addr_inbound->sin_family)
509 GNUNET_asprintf(&cs->addr_inbound_str,"[%s]:%u",address,ntohs(cs->addr_inbound->sin_port));
513 if (cs->msgtok==NULL)
514 cs->msgtok = GNUNET_SERVER_mst_create (GNUNET_SERVER_MAX_MESSAGE_SIZE, &messageTokenizerCallback, cs);
516 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Daemon has new an incoming `%s' request from peer `%s'\n",method, GNUNET_i2s(&cs->partner));
520 cs = *httpSessionCache;
522 /* Is it a PUT or a GET request */
523 if ( 0 == strcmp (MHD_HTTP_METHOD_PUT, method) )
526 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_NO))
528 if (cs->pending_inbound_msg->pos !=0 )
530 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
531 _("Incoming message from peer `%s', while existing message with %u bytes was not forwarded to transport'\n"),
532 GNUNET_i2s(&cs->partner), cs->pending_inbound_msg->pos);
533 cs->pending_inbound_msg->pos = 0;
536 cs->is_put_in_progress = GNUNET_YES;
537 cs->is_bad_request = GNUNET_NO;
538 cs->is_active = GNUNET_YES;
542 if ((*upload_data_size > 0) && (cs->is_bad_request != GNUNET_YES))
544 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))
546 /* copy uploaded data to buffer */
548 res = GNUNET_SERVER_mst_receive(cs->msgtok, cs, upload_data,*upload_data_size, GNUNET_YES, GNUNET_NO);
549 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"%u bytes forwarded to MST: result: %u\n",*upload_data_size, res);
550 cs->pending_inbound_msg->pos += *upload_data_size;
551 *upload_data_size = 0;
556 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);
557 cs->is_bad_request = GNUNET_YES;
558 /* (*upload_data_size) bytes not processed */
563 if ((cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_YES))
565 *upload_data_size = 0;
566 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
567 res = MHD_queue_response (session, MHD_HTTP_REQUEST_ENTITY_TOO_LARGE, response);
570 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 413 Request Entity Too Large as PUT Response\n");
571 cs->is_bad_request = GNUNET_NO;
572 cs->is_put_in_progress =GNUNET_NO;
573 cs->pending_inbound_msg->pos = 0;
575 MHD_destroy_response (response);
579 /* Transmission of all data complete */
580 if ((*upload_data_size == 0) && (cs->is_put_in_progress == GNUNET_YES) && (cs->is_bad_request == GNUNET_NO))
582 send_error_to_client = GNUNET_YES;
584 if (cs->pending_inbound_msg->pos >= sizeof (struct GNUNET_MessageHeader))
586 cur_msg = (struct GNUNET_MessageHeader *) cs->pending_inbound_msg->buf;
587 //res = GNUNET_SERVER_mst_receive(cs->msgtok, cs, cs->pending_inbound_msg->buf,cs->pending_inbound_msg->pos, GNUNET_YES, GNUNET_NO);
589 if ((res != GNUNET_SYSERR) && (res != GNUNET_NO))
590 send_error_to_client = GNUNET_NO;
592 if (send_error_to_client == GNUNET_NO)
594 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
595 res = MHD_queue_response (session, MHD_HTTP_OK, response);
596 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 200 OK as PUT Response\n",HTTP_PUT_RESPONSE, strlen (HTTP_PUT_RESPONSE), res );
597 MHD_destroy_response (response);
601 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
602 res = MHD_queue_response (session, MHD_HTTP_BAD_REQUEST, response);
603 MHD_destroy_response (response);
604 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Sent HTTP/1.1: 400 BAD REQUEST as PUT Response\n");
606 cs->is_put_in_progress = GNUNET_NO;
607 cs->is_bad_request = GNUNET_NO;
608 cs->pending_inbound_msg->pos = 0;
612 if ( 0 == strcmp (MHD_HTTP_METHOD_GET, method) )
614 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Got GET Request\n");
615 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"URL: `%s'\n",url);
616 response = MHD_create_response_from_data (strlen (HTTP_PUT_RESPONSE),HTTP_PUT_RESPONSE, MHD_NO, MHD_NO);
617 res = MHD_queue_response (session, MHD_HTTP_OK, response);
618 MHD_destroy_response (response);
626 * Call MHD to process pending ipv4 requests and then go back
627 * and schedule the next run.
629 static void http_daemon_v4_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
631 * Call MHD to process pending ipv6 requests and then go back
632 * and schedule the next run.
634 static void http_daemon_v6_run (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
637 * Function that queries MHD's select sets and
638 * starts the task waiting for them.
640 static GNUNET_SCHEDULER_TaskIdentifier
641 http_daemon_prepare (void * cls, struct MHD_Daemon *daemon_handle)
643 struct Plugin *plugin = cls;
644 GNUNET_SCHEDULER_TaskIdentifier ret;
648 struct GNUNET_NETWORK_FDSet *wrs;
649 struct GNUNET_NETWORK_FDSet *wws;
650 struct GNUNET_NETWORK_FDSet *wes;
652 unsigned long long timeout;
654 struct GNUNET_TIME_Relative tv;
656 GNUNET_assert(cls !=NULL);
660 wrs = GNUNET_NETWORK_fdset_create ();
661 wes = GNUNET_NETWORK_fdset_create ();
662 wws = GNUNET_NETWORK_fdset_create ();
664 GNUNET_assert (MHD_YES ==
665 MHD_get_fdset (daemon_handle,
670 haveto = MHD_get_timeout (daemon_handle, &timeout);
671 if (haveto == MHD_YES)
672 tv.value = (uint64_t) timeout;
674 tv = GNUNET_TIME_UNIT_FOREVER_REL;
675 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max);
676 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max);
677 GNUNET_NETWORK_fdset_copy_native (wes, &es, max);
678 if (daemon_handle == plugin->http_daemon_v4)
680 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
681 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
682 GNUNET_SCHEDULER_NO_TASK,
689 if (daemon_handle == plugin->http_daemon_v6)
691 ret = GNUNET_SCHEDULER_add_select (plugin->env->sched,
692 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
693 GNUNET_SCHEDULER_NO_TASK,
700 GNUNET_NETWORK_fdset_destroy (wrs);
701 GNUNET_NETWORK_fdset_destroy (wws);
702 GNUNET_NETWORK_fdset_destroy (wes);
707 * Call MHD to process pending requests and then go back
708 * and schedule the next run.
710 static void http_daemon_v4_run (void *cls,
711 const struct GNUNET_SCHEDULER_TaskContext *tc)
713 struct Plugin *plugin = cls;
715 GNUNET_assert(cls !=NULL);
716 if (plugin->http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
717 plugin->http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
719 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
722 GNUNET_assert (MHD_YES == MHD_run (plugin->http_daemon_v4));
723 plugin->http_task_v4 = http_daemon_prepare (plugin, plugin->http_daemon_v4);
729 * Call MHD to process pending requests and then go back
730 * and schedule the next run.
732 static void http_daemon_v6_run (void *cls,
733 const struct GNUNET_SCHEDULER_TaskContext *tc)
735 struct Plugin *plugin = cls;
737 GNUNET_assert(cls !=NULL);
738 if (plugin->http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
739 plugin->http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
741 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
744 GNUNET_assert (MHD_YES == MHD_run (plugin->http_daemon_v6));
745 plugin->http_task_v6 = http_daemon_prepare (plugin, plugin->http_daemon_v6);
750 * Removes a message from the linked list of messages
751 * @param ses session to remove message from
752 * @param msg message to remove
753 * @return GNUNET_SYSERR if msg not found, GNUNET_OK on success
756 static int remove_http_message(struct Session * ses, struct HTTP_Message * msg)
758 GNUNET_free (msg->buf);
759 GNUNET_free (msg->dest_url);
761 GNUNET_CONTAINER_DLL_remove(ses->pending_outbound_msg_head,ses->pending_outbound_msg_tail,msg);
766 static size_t header_function( void *ptr, size_t size, size_t nmemb, void *stream)
769 size_t len = size * nmemb;
772 if ((size * nmemb) < SIZE_MAX)
773 tmp = GNUNET_malloc (len+1);
775 if ((tmp != NULL) && (len > 0))
780 if (tmp[len-2] == 13)
784 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Header: `%s'\n",tmp);
794 * Callback method used with libcurl
795 * Method is called when libcurl needs to read data during sending
796 * @param stream pointer where to write data
797 * @param size size of an individual element
798 * @param nmemb count of elements that can be written to the buffer
799 * @param ptr source pointer, passed to the libcurl handle
800 * @return bytes written to stream
802 static size_t send_read_callback(void *stream, size_t size, size_t nmemb, void *ptr)
804 struct Session * ses = ptr;
805 struct HTTP_Message * msg = ses->pending_outbound_msg_tail;
810 if (( msg->pos < msg->len))
812 /* data fit in buffer */
813 if ((msg->len - msg->pos) <= (size * nmemb))
815 len = (msg->len - msg->pos);
816 memcpy(stream, &msg->buf[msg->pos], len);
823 memcpy(stream, &msg->buf[msg->pos], len);
828 /* no data to send */
837 * Callback method used with libcurl
838 * Method is called when libcurl needs to write data during sending
839 * @param stream pointer where to write data
840 * @param size size of an individual element
841 * @param nmemb count of elements that can be written to the buffer
842 * @param ptr destination pointer, passed to the libcurl handle
843 * @return bytes read from stream
845 static size_t send_write_callback( void *stream, size_t size, size_t nmemb, void *ptr)
849 if ((size * nmemb) < SIZE_MAX)
850 data = GNUNET_malloc(size*nmemb +1);
853 memcpy( data, stream, size*nmemb);
854 data[size*nmemb] = '\0';
857 return (size * nmemb);
862 * Function setting up file descriptors and scheduling task to run
863 * @param ses session to send data to
864 * @return bytes sent to peer
866 static size_t send_prepare(void *cls, struct Session* ses );
869 * Function setting up curl handle and selecting message to send
870 * @param ses session to send data to
871 * @return bytes sent to peer
873 static ssize_t send_select_init (void *cls, struct Session* ses )
875 struct Plugin *plugin = cls;
878 struct HTTP_Message * msg;
880 GNUNET_assert(cls !=NULL);
881 if ( NULL == ses->curl_handle)
882 ses->curl_handle = curl_easy_init();
883 if( NULL == ses->curl_handle)
885 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Getting cURL handle failed\n");
888 GNUNET_assert (NULL != ses->pending_outbound_msg_tail);
889 msg = ses->pending_outbound_msg_tail;
892 curl_easy_setopt(ses->curl_handle, CURLOPT_VERBOSE, 1L);
894 curl_easy_setopt(ses->curl_handle, CURLOPT_URL, msg->dest_url);
895 curl_easy_setopt(ses->curl_handle, CURLOPT_PUT, 1L);
896 curl_easy_setopt(ses->curl_handle, CURLOPT_HEADERFUNCTION, &header_function);
897 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEHEADER, ses);
898 curl_easy_setopt(ses->curl_handle, CURLOPT_READFUNCTION, send_read_callback);
899 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
900 curl_easy_setopt(ses->curl_handle, CURLOPT_WRITEFUNCTION, send_write_callback);
901 curl_easy_setopt(ses->curl_handle, CURLOPT_READDATA, ses);
902 curl_easy_setopt(ses->curl_handle, CURLOPT_INFILESIZE_LARGE, (curl_off_t) msg->len);
903 curl_easy_setopt(ses->curl_handle, CURLOPT_TIMEOUT, GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT);
904 GNUNET_assert (CURLE_OK == curl_easy_setopt(ses->curl_handle, CURLOPT_PRIVATE, ses));
905 curl_easy_setopt(ses->curl_handle, CURLOPT_CONNECTTIMEOUT, HTTP_CONNECT_TIMEOUT);
906 curl_easy_setopt(ses->curl_handle, CURLOPT_BUFFERSIZE, GNUNET_SERVER_MAX_MESSAGE_SIZE);
908 mret = curl_multi_add_handle(plugin->multi_handle, ses->curl_handle);
909 if (mret != CURLM_OK)
911 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
912 _("%s failed at %s:%d: `%s'\n"),
913 "curl_multi_add_handle", __FILE__, __LINE__,
914 curl_multi_strerror (mret));
917 bytes_sent = send_prepare (plugin, ses );
921 static void send_execute (void *cls,
922 const struct GNUNET_SCHEDULER_TaskContext *tc)
924 struct Plugin *plugin = cls;
925 static unsigned int handles_last_run;
929 struct Session * cs = NULL;
932 GNUNET_assert(cls !=NULL);
933 plugin->http_task_send = GNUNET_SCHEDULER_NO_TASK;
934 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
940 mret = curl_multi_perform (plugin->multi_handle, &running);
941 if (running < handles_last_run)
946 msg = curl_multi_info_read (plugin->multi_handle, &running);
947 GNUNET_break (msg != NULL);
950 /* get session for affected curl handle */
951 GNUNET_assert ( msg->easy_handle != NULL );
952 curl_easy_getinfo(msg->easy_handle, CURLINFO_PRIVATE, &cs);
953 GNUNET_assert ( cs != NULL );
954 GNUNET_assert ( cs->pending_outbound_msg_tail != NULL );
959 if ( (msg->data.result != CURLE_OK) &&
960 (msg->data.result != CURLE_GOT_NOTHING) )
962 GNUNET_log(GNUNET_ERROR_TYPE_INFO,
963 _("%s failed for `%s' at %s:%d: `%s'\n"),
964 "curl_multi_perform",
965 GNUNET_i2s(&cs->partner),
968 curl_easy_strerror (msg->data.result));
969 /* sending msg failed*/
970 if (( NULL != cs->pending_outbound_msg_tail) && ( NULL != cs->pending_outbound_msg_tail->transmit_cont))
971 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
975 GNUNET_assert (CURLE_OK == curl_easy_getinfo(msg->easy_handle, CURLINFO_RESPONSE_CODE, &http_result));
976 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
977 "Send to peer `%s' completed with code %u\n", GNUNET_i2s(&cs->partner), http_result );
979 curl_easy_cleanup(cs->curl_handle);
980 cs->curl_handle=NULL;
982 /* Calling transmit continuation */
983 if (( NULL != cs->pending_outbound_msg_tail) && (NULL != cs->pending_outbound_msg_tail->transmit_cont))
985 /* HTTP 1xx : Last message before here was informational */
986 if ((http_result >=100) && (http_result < 200))
987 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_OK);
988 /* HTTP 2xx: successful operations */
989 if ((http_result >=200) && (http_result < 300))
990 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_OK);
991 /* HTTP 3xx..5xx: error */
992 if ((http_result >=300) && (http_result < 600))
993 cs->pending_outbound_msg_tail->transmit_cont (cs->pending_outbound_msg_tail->transmit_cont_cls,&cs->partner,GNUNET_SYSERR);
997 if (GNUNET_OK != remove_http_message(cs, cs->pending_outbound_msg_tail))
998 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Message could not be removed from session `%s'", GNUNET_i2s(&cs->partner));
999 /* send pending messages */
1000 if (cs->pending_outbound_msg_tail!= NULL)
1002 send_select_init (plugin, cs);
1010 while ( (running > 0) );
1012 handles_last_run = running;
1014 while (mret == CURLM_CALL_MULTI_PERFORM);
1015 send_prepare(plugin, cls);
1020 * Function setting up file descriptors and scheduling task to run
1021 * @param ses session to send data to
1022 * @return bytes sent to peer
1024 static size_t send_prepare(void *cls, struct Session* ses )
1026 struct Plugin *plugin = cls;
1031 struct GNUNET_NETWORK_FDSet *grs;
1032 struct GNUNET_NETWORK_FDSet *gws;
1036 GNUNET_assert(cls !=NULL);
1041 mret = curl_multi_fdset (plugin->multi_handle, &rs, &ws, &es, &max);
1042 if (mret != CURLM_OK)
1044 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1045 _("%s failed at %s:%d: `%s'\n"),
1046 "curl_multi_fdset", __FILE__, __LINE__,
1047 curl_multi_strerror (mret));
1050 mret = curl_multi_timeout (plugin->multi_handle, &to);
1051 if (mret != CURLM_OK)
1053 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1054 _("%s failed at %s:%d: `%s'\n"),
1055 "curl_multi_timeout", __FILE__, __LINE__,
1056 curl_multi_strerror (mret));
1060 grs = GNUNET_NETWORK_fdset_create ();
1061 gws = GNUNET_NETWORK_fdset_create ();
1062 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
1063 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
1064 plugin->http_task_send = GNUNET_SCHEDULER_add_select (plugin->env->sched,
1065 GNUNET_SCHEDULER_PRIORITY_DEFAULT,
1066 GNUNET_SCHEDULER_NO_TASK,
1067 GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 0),
1072 GNUNET_NETWORK_fdset_destroy (gws);
1073 GNUNET_NETWORK_fdset_destroy (grs);
1075 /* FIXME: return bytes REALLY sent */
1080 * Function that can be used by the transport service to transmit
1081 * a message using the plugin.
1083 * @param cls closure
1084 * @param target who should receive this message
1085 * @param priority how important is the message
1086 * @param msgbuf the message to transmit
1087 * @param msgbuf_size number of bytes in 'msgbuf'
1088 * @param to when should we time out
1089 * @param session which session must be used (or NULL for "any")
1090 * @param addr the address to use (can be NULL if the plugin
1091 * is "on its own" (i.e. re-use existing TCP connection))
1092 * @param addrlen length of the address in bytes
1093 * @param force_address GNUNET_YES if the plugin MUST use the given address,
1094 * otherwise the plugin may use other addresses or
1095 * existing connections (if available)
1096 * @param cont continuation to call once the message has
1097 * been transmitted (or if the transport is ready
1098 * for the next transmission call; or if the
1099 * peer disconnected...)
1100 * @param cont_cls closure for cont
1101 * @return number of bytes used (on the physical network, with overheads);
1102 * -1 on hard errors (i.e. address invalid); 0 is a legal value
1103 * and does NOT mean that the message was not transmitted (DV)
1106 http_plugin_send (void *cls,
1107 const struct GNUNET_PeerIdentity *target,
1110 unsigned int priority,
1111 struct GNUNET_TIME_Relative to,
1112 struct Session *session,
1116 GNUNET_TRANSPORT_TransmitContinuation cont,
1119 struct Plugin *plugin = cls;
1123 struct HTTP_Message *msg;
1126 GNUNET_assert(cls !=NULL);
1130 cs = GNUNET_CONTAINER_multihashmap_get (plugin->sessions, &target->hashPubKey);
1133 cs = create_session(plugin, (char *) addr, addrlen, NULL, 0, target);
1134 cs->is_active = GNUNET_YES;
1135 res = GNUNET_CONTAINER_multihashmap_put ( plugin->sessions,
1136 &cs->partner.hashPubKey,
1138 GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
1139 if (res == GNUNET_OK)
1140 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1141 "New Session `%s' inserted\n", GNUNET_i2s(target));
1144 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1145 "Session `%s' found\n", GNUNET_i2s(target));
1147 GNUNET_assert ((addr!=NULL) && (addrlen != 0));
1148 if (addrlen == (sizeof (struct IPv4HttpAddress)))
1150 address = GNUNET_malloc(INET_ADDRSTRLEN + 1);
1151 inet_ntop(AF_INET, &((struct IPv4HttpAddress *) addr)->ipv4_addr,address,INET_ADDRSTRLEN);
1152 GNUNET_asprintf (&url,
1155 ntohs(((struct IPv4HttpAddress *) addr)->u_port),
1156 (char *) (&plugin->my_ascii_hash_ident));
1157 GNUNET_free(address);
1159 else if (addrlen == (sizeof (struct IPv6HttpAddress)))
1161 address = GNUNET_malloc(INET6_ADDRSTRLEN + 1);
1162 inet_ntop(AF_INET6, &((struct IPv6HttpAddress *) addr)->ipv6_addr,address,INET6_ADDRSTRLEN);
1163 GNUNET_asprintf(&url,
1166 ntohs(((struct IPv6HttpAddress *) addr)->u6_port),
1167 (char *) (&plugin->my_ascii_hash_ident));
1168 GNUNET_free(address);
1171 /* setting up message */
1172 msg = GNUNET_malloc (sizeof (struct HTTP_Message));
1174 msg->len = msgbuf_size;
1176 msg->buf = GNUNET_malloc (msgbuf_size);
1177 msg->dest_url = url;
1178 msg->transmit_cont = cont;
1179 msg->transmit_cont_cls = cont_cls;
1180 memcpy (msg->buf,msgbuf, msgbuf_size);
1181 /* insert created message in double linked list of pending messages */
1182 GNUNET_CONTAINER_DLL_insert (cs->pending_outbound_msg_head, cs->pending_outbound_msg_tail, msg);
1184 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: sending %u bytes of data from peer `%4.4s' to peer `%s'\n",msgbuf_size,(char *) &plugin->my_ascii_hash_ident,GNUNET_i2s(target));
1185 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: url `%s'\n",url);
1186 if (msg == cs->pending_outbound_msg_tail)
1188 return send_select_init (plugin, cs);
1196 * Function that can be used to force the plugin to disconnect
1197 * from the given peer and cancel all previous transmissions
1198 * (and their continuationc).
1200 * @param cls closure
1201 * @param target peer from which to disconnect
1204 http_plugin_disconnect (void *cls,
1205 const struct GNUNET_PeerIdentity *target)
1207 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"HTTP Plugin: http_plugin_disconnect\n");
1208 // struct Plugin *plugin = cls;
1214 * Convert the transports address to a nice, human-readable
1217 * @param cls closure
1218 * @param type name of the transport that generated the address
1219 * @param addr one of the addresses of the host, NULL for the last address
1220 * the specific address format depends on the transport
1221 * @param addrlen length of the address
1222 * @param numeric should (IP) addresses be displayed in numeric form?
1223 * @param timeout after how long should we give up?
1224 * @param asc function to call on each string
1225 * @param asc_cls closure for asc
1228 http_plugin_address_pretty_printer (void *cls,
1233 struct GNUNET_TIME_Relative timeout,
1234 GNUNET_TRANSPORT_AddressStringCallback
1237 const struct IPv4HttpAddress *t4;
1238 const struct IPv6HttpAddress *t6;
1239 struct sockaddr_in a4;
1240 struct sockaddr_in6 a6;
1246 GNUNET_assert(cls !=NULL);
1247 if (addrlen == sizeof (struct IPv6HttpAddress))
1249 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1251 a6.sin6_addr = t6->ipv6_addr;
1252 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1253 port = ntohs(t6->u6_port);
1255 else if (addrlen == sizeof (struct IPv4HttpAddress))
1257 address = GNUNET_malloc (INET_ADDRSTRLEN);
1259 a4.sin_addr.s_addr = t4->ipv4_addr;
1260 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1261 port = ntohs(t4->u_port);
1265 /* invalid address */
1266 GNUNET_break_op (0);
1267 asc (asc_cls, NULL);
1270 res = GNUNET_asprintf(&ret,"http://%s:%u/",address,port);
1271 GNUNET_free (address);
1272 GNUNET_assert(res != 0);
1280 * Another peer has suggested an address for this
1281 * peer and transport plugin. Check that this could be a valid
1282 * address. If so, consider adding it to the list
1285 * @param cls closure
1286 * @param addr pointer to the address
1287 * @param addrlen length of addr
1288 * @return GNUNET_OK if this is a plausible address for this peer
1292 http_plugin_address_suggested (void *cls,
1293 void *addr, size_t addrlen)
1295 struct Plugin *plugin = cls;
1296 struct IPv4HttpAddress *v4;
1297 struct IPv6HttpAddress *v6;
1300 GNUNET_assert(cls !=NULL);
1301 if ((addrlen != sizeof (struct IPv4HttpAddress)) &&
1302 (addrlen != sizeof (struct IPv6HttpAddress)))
1304 return GNUNET_SYSERR;
1306 if (addrlen == sizeof (struct IPv4HttpAddress))
1308 v4 = (struct IPv4HttpAddress *) addr;
1309 if (INADDR_LOOPBACK == ntohl(v4->ipv4_addr))
1311 return GNUNET_SYSERR;
1313 port = ntohs (v4->u_port);
1314 if (port != plugin->port_inbound)
1316 return GNUNET_SYSERR;
1321 v6 = (struct IPv6HttpAddress *) addr;
1322 if (IN6_IS_ADDR_LINKLOCAL (&v6->ipv6_addr))
1324 return GNUNET_SYSERR;
1326 port = ntohs (v6->u6_port);
1327 if (port != plugin->port_inbound)
1329 return GNUNET_SYSERR;
1339 * Function called for a quick conversion of the binary address to
1340 * a numeric address. Note that the caller must not free the
1341 * address and that the next call to this function is allowed
1342 * to override the address again.
1344 * @param cls closure
1345 * @param addr binary address
1346 * @param addrlen length of the address
1347 * @return string representing the same address
1350 http_plugin_address_to_string (void *cls,
1354 const struct IPv4HttpAddress *t4;
1355 const struct IPv6HttpAddress *t6;
1356 struct sockaddr_in a4;
1357 struct sockaddr_in6 a6;
1363 GNUNET_assert(cls !=NULL);
1364 if (addrlen == sizeof (struct IPv6HttpAddress))
1366 address = GNUNET_malloc (INET6_ADDRSTRLEN);
1368 a6.sin6_addr = t6->ipv6_addr;
1369 inet_ntop(AF_INET6, &(a6.sin6_addr),address,INET6_ADDRSTRLEN);
1370 port = ntohs(t6->u6_port);
1372 else if (addrlen == sizeof (struct IPv4HttpAddress))
1374 address = GNUNET_malloc (INET_ADDRSTRLEN);
1376 a4.sin_addr.s_addr = t4->ipv4_addr;
1377 inet_ntop(AF_INET, &(a4.sin_addr),address,INET_ADDRSTRLEN);
1378 port = ntohs(t4->u_port);
1382 /* invalid address */
1385 res = GNUNET_asprintf(&ret,"%s:%u",address,port);
1386 GNUNET_free (address);
1387 GNUNET_assert(res != 0);
1392 * Add the IP of our network interface to the list of
1393 * our external IP addresses.
1395 * @param cls the 'struct Plugin*'
1396 * @param name name of the interface
1397 * @param isDefault do we think this may be our default interface
1398 * @param addr address of the interface
1399 * @param addrlen number of bytes in addr
1400 * @return GNUNET_OK to continue iterating
1403 process_interfaces (void *cls,
1406 const struct sockaddr *addr, socklen_t addrlen)
1408 struct Plugin *plugin = cls;
1409 struct IPv4HttpAddress t4;
1410 struct IPv6HttpAddress t6;
1415 GNUNET_assert(cls !=NULL);
1416 af = addr->sa_family;
1419 if (INADDR_LOOPBACK == ntohl(((struct sockaddr_in *) addr)->sin_addr.s_addr))
1421 /* skip loopback addresses */
1424 t4.ipv4_addr = ((struct sockaddr_in *) addr)->sin_addr.s_addr;
1425 t4.u_port = htons (plugin->port_inbound);
1429 else if (af == AF_INET6)
1431 if (IN6_IS_ADDR_LINKLOCAL (&((struct sockaddr_in6 *) addr)->sin6_addr))
1433 /* skip link local addresses */
1436 if (IN6_IS_ADDR_LOOPBACK (&((struct sockaddr_in6 *) addr)->sin6_addr))
1438 /* skip loopback addresses */
1441 memcpy (&t6.ipv6_addr,
1442 &((struct sockaddr_in6 *) addr)->sin6_addr,
1443 sizeof (struct in6_addr));
1444 t6.u6_port = htons (plugin->port_inbound);
1453 plugin->env->notify_address(plugin->env->cls,"http",arg, args, GNUNET_TIME_UNIT_FOREVER_REL);
1457 int hashMapFreeIterator (void *cls, const GNUNET_HashCode *key, void *value)
1459 struct Session * cs = value;
1461 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Freeing session for peer `%s'\n",GNUNET_i2s(&cs->partner));
1463 /* freeing messages */
1464 struct HTTP_Message *cur;
1465 struct HTTP_Message *tmp;
1466 cur = cs->pending_outbound_msg_head;
1471 GNUNET_free_non_null(cur->dest_url);
1472 GNUNET_free_non_null (cur->buf);
1476 GNUNET_SERVER_mst_destroy (cs->msgtok);
1477 GNUNET_free (cs->pending_inbound_msg->buf);
1478 GNUNET_free (cs->pending_inbound_msg);
1479 GNUNET_free_non_null (cs->addr_in);
1480 GNUNET_free_non_null (cs->addr_out);
1487 * Exit point from the plugin.
1490 libgnunet_plugin_transport_http_done (void *cls)
1492 struct GNUNET_TRANSPORT_PluginFunctions *api = cls;
1493 struct Plugin *plugin = api->cls;
1496 GNUNET_assert(cls !=NULL);
1497 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Unloading http plugin...\n");
1499 if ( plugin->http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1501 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_task_v4);
1502 plugin->http_task_v4 = GNUNET_SCHEDULER_NO_TASK;
1505 if ( plugin->http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1507 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_task_v6);
1508 plugin->http_task_v6 = GNUNET_SCHEDULER_NO_TASK;
1511 if ( plugin->http_task_send != GNUNET_SCHEDULER_NO_TASK)
1513 GNUNET_SCHEDULER_cancel(plugin->env->sched, plugin->http_task_send);
1514 plugin->http_task_send = GNUNET_SCHEDULER_NO_TASK;
1517 if (plugin->http_daemon_v4 != NULL)
1519 MHD_stop_daemon (plugin->http_daemon_v4);
1520 plugin->http_daemon_v4 = NULL;
1522 if (plugin->http_daemon_v6 != NULL)
1524 MHD_stop_daemon (plugin->http_daemon_v6);
1525 plugin->http_daemon_v6 = NULL;
1528 /* free all sessions */
1529 GNUNET_CONTAINER_multihashmap_iterate (plugin->sessions,
1530 &hashMapFreeIterator,
1533 GNUNET_CONTAINER_multihashmap_destroy (plugin->sessions);
1535 mret = curl_multi_cleanup(plugin->multi_handle);
1536 if ( CURLM_OK != mret)
1537 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"curl multihandle clean up failed");
1539 GNUNET_free (plugin);
1546 * Entry point for the plugin.
1549 libgnunet_plugin_transport_http_init (void *cls)
1551 struct GNUNET_TRANSPORT_PluginEnvironment *env = cls;
1552 struct Plugin *plugin;
1553 struct GNUNET_TRANSPORT_PluginFunctions *api;
1554 struct GNUNET_TIME_Relative gn_timeout;
1555 long long unsigned int port;
1557 GNUNET_assert(cls !=NULL);
1558 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting http plugin...\n");
1560 plugin = GNUNET_malloc (sizeof (struct Plugin));
1562 plugin->sessions = NULL;
1563 api = GNUNET_malloc (sizeof (struct GNUNET_TRANSPORT_PluginFunctions));
1565 api->send = &http_plugin_send;
1566 api->disconnect = &http_plugin_disconnect;
1567 api->address_pretty_printer = &http_plugin_address_pretty_printer;
1568 api->check_address = &http_plugin_address_suggested;
1569 api->address_to_string = &http_plugin_address_to_string;
1571 /* Hashing our identity to use it in URLs */
1572 GNUNET_CRYPTO_hash_to_enc ( &(plugin->env->my_identity->hashPubKey), &plugin->my_ascii_hash_ident);
1574 /* Reading port number from config file */
1576 GNUNET_CONFIGURATION_get_value_number (env->cfg,
1582 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1585 ("Require valid port number for transport plugin `%s' in configuration!\n"),
1587 libgnunet_plugin_transport_http_done (api);
1590 GNUNET_assert ((port > 0) && (port <= 65535));
1591 plugin->port_inbound = port;
1592 gn_timeout = GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT;
1593 if ((plugin->http_daemon_v4 == NULL) && (plugin->http_daemon_v6 == NULL) && (port != 0))
1595 plugin->http_daemon_v6 = MHD_start_daemon (MHD_USE_IPv6,
1597 &acceptPolicyCallback,
1598 plugin , &accessHandlerCallback, plugin,
1599 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1600 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1601 MHD_OPTION_CONNECTION_TIMEOUT, (gn_timeout.value / 1000),
1602 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1603 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1605 plugin->http_daemon_v4 = MHD_start_daemon (MHD_NO_FLAG,
1607 &acceptPolicyCallback,
1608 plugin , &accessHandlerCallback, plugin,
1609 MHD_OPTION_CONNECTION_LIMIT, (unsigned int) 16,
1610 MHD_OPTION_PER_IP_CONNECTION_LIMIT, (unsigned int) 1,
1611 MHD_OPTION_CONNECTION_TIMEOUT, (gn_timeout.value / 1000),
1612 MHD_OPTION_CONNECTION_MEMORY_LIMIT, (size_t) (16 * 1024),
1613 MHD_OPTION_NOTIFY_COMPLETED, &requestCompletedCallback, NULL,
1616 if (plugin->http_daemon_v4 != NULL)
1617 plugin->http_task_v4 = http_daemon_prepare (plugin, plugin->http_daemon_v4);
1618 if (plugin->http_daemon_v6 != NULL)
1619 plugin->http_task_v6 = http_daemon_prepare (plugin, plugin->http_daemon_v6);
1621 if (plugin->http_task_v4 != GNUNET_SCHEDULER_NO_TASK)
1622 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 on port %u\n",port);
1623 else if (plugin->http_task_v6 != GNUNET_SCHEDULER_NO_TASK)
1624 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"Starting MHD with IPv4 and IPv6 on port %u\n",port);
1627 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,"No MHD was started, transport plugin not functional!\n");
1628 libgnunet_plugin_transport_http_done (api);
1632 /* Initializing cURL */
1633 plugin->multi_handle = curl_multi_init();
1634 if ( NULL == plugin->multi_handle )
1636 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR,
1638 _("Could not initialize curl multi handle, failed to start http plugin!\n"),
1640 libgnunet_plugin_transport_http_done (api);
1644 plugin->sessions = GNUNET_CONTAINER_multihashmap_create (10);
1645 GNUNET_OS_network_interfaces_list (&process_interfaces, plugin);
1650 /* end of plugin_transport_http.c */