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 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file transport/plugin_transport_http_client.c
23 * @brief http transport service plugin
24 * @author Matthias Wachs
27 #include "plugin_transport_http.h"
31 * Function to log curl debug messages with GNUNET_log
33 * @param type curl_infotype
40 client_log (CURL * curl, curl_infotype type, char *data, size_t size, void *cls)
42 if (type == CURLINFO_TEXT)
46 memcpy (text, data, size);
47 if (text[size - 1] == '\n')
52 text[size + 1] = '\0';
54 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Client: %X - %s", cls, text);
61 client_disconnect (struct Session *s)
67 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, s->plugin->name,
68 "Deleting outbound session peer `%s'\n",
69 GNUNET_i2s (&s->target));
72 mret = curl_multi_remove_handle (s->plugin->client_mh, s->client_put);
75 curl_easy_cleanup (s->client_put);
79 curl_easy_cleanup (s->client_put);
81 mret = curl_multi_remove_handle (s->plugin->client_mh, s->client_get);
84 curl_easy_cleanup (s->client_get);
88 curl_easy_cleanup (s->client_get);
94 client_send (struct Session *s, const char *msgbuf, size_t msgbuf_size)
100 * Task performing curl operations
101 * @param cls plugin as closure
102 * @param tc gnunet scheduler task context
105 client_perform (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
108 * Function setting up file descriptors and scheduling task to run
110 * @param plugin plugin as closure
111 * @return GNUNET_SYSERR for hard failure, GNUNET_OK for ok
114 client_schedule_next_perform (struct Plugin *plugin)
120 struct GNUNET_NETWORK_FDSet *grs;
121 struct GNUNET_NETWORK_FDSet *gws;
124 struct GNUNET_TIME_Relative timeout;
126 /* Cancel previous scheduled task */
127 if (plugin->client_perform_task!= GNUNET_SCHEDULER_NO_TASK)
129 GNUNET_SCHEDULER_cancel (plugin->client_perform_task);
130 plugin->client_perform_task = GNUNET_SCHEDULER_NO_TASK;
137 mret = curl_multi_fdset (plugin->client_mh, &rs, &ws, &es, &max);
138 if (mret != CURLM_OK)
140 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("%s failed at %s:%d: `%s'\n"),
141 "curl_multi_fdset", __FILE__, __LINE__,
142 curl_multi_strerror (mret));
143 return GNUNET_SYSERR;
145 mret = curl_multi_timeout (plugin->client_mh, &to);
147 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5);
149 timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, to);
150 if (mret != CURLM_OK)
152 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("%s failed at %s:%d: `%s'\n"),
153 "curl_multi_timeout", __FILE__, __LINE__,
154 curl_multi_strerror (mret));
155 return GNUNET_SYSERR;
158 grs = GNUNET_NETWORK_fdset_create ();
159 gws = GNUNET_NETWORK_fdset_create ();
160 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
161 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
162 plugin->client_perform_task =
163 GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
164 GNUNET_SCHEDULER_NO_TASK,
170 GNUNET_NETWORK_fdset_destroy (gws);
171 GNUNET_NETWORK_fdset_destroy (grs);
177 * Task performing curl operations
178 * @param cls plugin as closure
179 * @param tc gnunet scheduler task context
182 client_perform (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
184 struct Plugin *plugin = cls;
185 static unsigned int handles_last_run;
189 GNUNET_assert (cls != NULL);
191 plugin->client_perform_task = GNUNET_SCHEDULER_NO_TASK;
192 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
197 mret = curl_multi_perform (plugin->client_mh, &running);
198 if ((running < handles_last_run) && (running > 0))
202 //curl_handle_finished (plugin);
203 handles_last_run = running;
205 while (mret == CURLM_CALL_MULTI_PERFORM);
206 client_schedule_next_perform (plugin);
210 client_connect (struct Session *s)
217 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, s->plugin->name,
218 "Initiating outbound session peer `%s'\n",
219 GNUNET_i2s (&s->target));
222 s->inbound = GNUNET_NO;
225 GNUNET_asprintf (&url, "%s://%s/", s->plugin->protocol,
226 http_plugin_address_to_string (NULL, s->addr, s->addrlen));
229 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, s->plugin->name, "URL `%s'\n", url);
232 /* create get connection */
233 s->client_get = curl_easy_init ();
235 curl_easy_setopt (s->client_get, CURLOPT_VERBOSE, 1L);
236 curl_easy_setopt (s->client_get, CURLOPT_DEBUGFUNCTION, &client_log);
237 curl_easy_setopt (s->client_get, CURLOPT_DEBUGDATA, s->client_get);
240 curl_easy_setopt (s->client_get, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
241 curl_easy_setopt (s->client_get, CURLOPT_SSL_VERIFYPEER, 0);
242 curl_easy_setopt (s->client_get, CURLOPT_SSL_VERIFYHOST, 0);
244 curl_easy_setopt (s->client_get, CURLOPT_URL, url);
245 //curl_easy_setopt (s->client_get, CURLOPT_HEADERFUNCTION, &curl_get_header_cb);
246 //curl_easy_setopt (s->client_get, CURLOPT_WRITEHEADER, ps);
247 //curl_easy_setopt (s->client_get, CURLOPT_READFUNCTION, curl_send_cb);
248 //curl_easy_setopt (s->client_get, CURLOPT_READDATA, ps);
249 //curl_easy_setopt (s->client_get, CURLOPT_WRITEFUNCTION, curl_receive_cb);
250 //curl_easy_setopt (s->client_get, CURLOPT_WRITEDATA, ps);
251 curl_easy_setopt (s->client_get, CURLOPT_TIMEOUT_MS,
252 (long) GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value);
253 //curl_easy_setopt (s->client_get, CURLOPT_PRIVATE, ps);
254 curl_easy_setopt (s->client_get, CURLOPT_CONNECTTIMEOUT_MS,
255 (long) HTTP_NOT_VALIDATED_TIMEOUT.rel_value);
256 curl_easy_setopt (s->client_get, CURLOPT_BUFFERSIZE,
257 2 * GNUNET_SERVER_MAX_MESSAGE_SIZE);
259 curl_easy_setopt (ps->recv_endpoint, CURLOPT_TCP_NODELAY, 1);
262 /* create put connection */
263 s->client_put = curl_easy_init ();
265 curl_easy_setopt (s->client_put, CURLOPT_VERBOSE, 1L);
266 curl_easy_setopt (s->client_put, CURLOPT_DEBUGFUNCTION, &client_log);
267 curl_easy_setopt (s->client_put, CURLOPT_DEBUGDATA, s->client_put);
270 curl_easy_setopt (s->client_put, CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
271 curl_easy_setopt (s->client_put, CURLOPT_SSL_VERIFYPEER, 0);
272 curl_easy_setopt (s->client_put, CURLOPT_SSL_VERIFYHOST, 0);
274 curl_easy_setopt (s->client_put, CURLOPT_URL, url);
275 curl_easy_setopt (s->client_put, CURLOPT_PUT, 1L);
276 //curl_easy_setopt (s->client_put, CURLOPT_HEADERFUNCTION, &curl_put_header_cb);
277 //curl_easy_setopt (s->client_put, CURLOPT_WRITEHEADER, ps);
278 //curl_easy_setopt (s->client_put, CURLOPT_READFUNCTION, curl_send_cb);
279 //curl_easy_setopt (s->client_put, CURLOPT_READDATA, ps);
280 //curl_easy_setopt (s->client_put, CURLOPT_WRITEFUNCTION, curl_receive_cb);
281 //curl_easy_setopt (s->client_put, CURLOPT_WRITEDATA, ps);
282 curl_easy_setopt (s->client_put, CURLOPT_TIMEOUT_MS,
283 (long) GNUNET_CONSTANTS_IDLE_CONNECTION_TIMEOUT.rel_value);
284 //curl_easy_setopt (s->client_put, CURLOPT_PRIVATE, ps);
285 curl_easy_setopt (s->client_put, CURLOPT_CONNECTTIMEOUT_MS,
286 (long) HTTP_NOT_VALIDATED_TIMEOUT.rel_value);
287 curl_easy_setopt (s->client_put, CURLOPT_BUFFERSIZE,
288 2 * GNUNET_SERVER_MAX_MESSAGE_SIZE);
290 curl_easy_setopt (s->client_put, CURLOPT_TCP_NODELAY, 1);
295 mret = curl_multi_add_handle (s->plugin->client_mh, s->client_get);
296 if (mret != CURLM_OK)
298 curl_easy_cleanup (s->client_get);
303 mret = curl_multi_add_handle (s->plugin->client_mh, s->client_put);
304 if (mret != CURLM_OK)
306 curl_multi_remove_handle (s->plugin->client_mh, s->client_get);
307 curl_easy_cleanup (s->client_get);
308 curl_easy_cleanup (s->client_put);
313 /* Perform connect */
314 s->plugin->client_perform_task = GNUNET_SCHEDULER_add_now (client_perform, s->plugin);
320 client_start (struct Plugin *plugin)
324 curl_global_init (CURL_GLOBAL_ALL);
325 plugin->client_mh = curl_multi_init ();
327 if (NULL == plugin->client_mh)
329 GNUNET_log_from (GNUNET_ERROR_TYPE_ERROR, plugin->name,
331 ("Could not initialize curl multi handle, failed to start %s plugin!\n"),
339 client_stop (struct Plugin *plugin)
341 if (plugin->client_perform_task != GNUNET_SCHEDULER_NO_TASK)
343 GNUNET_SCHEDULER_cancel (plugin->client_perform_task);
344 plugin->client_perform_task = GNUNET_SCHEDULER_NO_TASK;
347 curl_multi_cleanup (plugin->client_mh);
348 curl_global_cleanup ();
353 /* end of plugin_transport_http_client.c */