2 This file is part of GNUnet.
3 (C) 2012 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 #include <gnunet_util_lib.h>
23 #include <gnunet_gns_service.h>
24 #include <microhttpd.h>
25 #include <curl/curl.h>
27 #include "gns_proxy_proto.h"
31 #include <gnutls/gnutls.h>
32 #include <gnutls/x509.h>
33 #include <gnutls/abstract.h>
34 #include <gnutls/crypto.h>
37 #define GNUNET_GNS_PROXY_PORT 7777
38 #define MHD_MAX_CONNECTIONS 300
40 /* MHD/cURL defines */
41 #define BUF_WAIT_FOR_CURL 0
42 #define BUF_WAIT_FOR_MHD 1
43 #define HTML_HDR_CONTENT "Content-Type: text/html"
46 //#define RE_DOTPLUS "<a href=\"http://(([A-Za-z]+[.])+)([+])"
47 #define RE_A_HREF "<a href=\"https?://(([A-Za-z0-9]+[.])+)([+]|zkey)"
48 #define RE_N_MATCHES 4
50 /* The usual suspects */
52 #define HTTPS_PORT 443
56 * A structure for CA cert/key
61 gnutls_x509_crt_t cert;
64 gnutls_x509_privkey_t key;
69 * Structure for GNS certificates
71 struct ProxyGNSCertificate
73 /* The certificate as PEM */
76 /* The private key as PEM */
82 * A structure for socks requests
86 /* The client socket */
87 struct GNUNET_NETWORK_Handle *sock;
89 /* The server socket */
90 struct GNUNET_NETWORK_Handle *remote_sock;
95 /* Client socket read task */
96 GNUNET_SCHEDULER_TaskIdentifier rtask;
98 /* Server socket read task */
99 GNUNET_SCHEDULER_TaskIdentifier fwdrtask;
101 /* Client socket write task */
102 GNUNET_SCHEDULER_TaskIdentifier wtask;
104 /* Server socket write task */
105 GNUNET_SCHEDULER_TaskIdentifier fwdwtask;
113 /* Length of data in read buffer */
114 unsigned int rbuf_len;
116 /* Length of data in write buffer */
117 unsigned int wbuf_len;
119 /* This handle is scheduled for cleanup? */
122 /* Shall we close the client socket on cleanup? */
127 * DLL for Network Handles
129 struct NetworkHandleList
132 struct NetworkHandleList *next;
135 struct NetworkHandleList *prev;
138 struct GNUNET_NETWORK_Handle *h;
142 * A structure for all running Httpds
147 struct MhdHttpList *prev;
150 struct MhdHttpList *next;
152 /* is this an ssl daemon? */
155 /* the domain name to server (only important for SSL) */
158 /* The daemon handle */
159 struct MHD_Daemon *daemon;
161 /* Optional proxy certificate used */
162 struct ProxyGNSCertificate *proxy_cert;
165 GNUNET_SCHEDULER_TaskIdentifier httpd_task;
167 /* Handles associated with this daemon */
168 struct NetworkHandleList *socket_handles_head;
170 /* Handles associated with this daemon */
171 struct NetworkHandleList *socket_handles_tail;
175 * A structure for MHD<->cURL streams
180 struct ProxyCurlTask *prev;
183 struct ProxyCurlTask *next;
188 /* Optional header replacements for curl (LEHO) */
189 struct curl_slist *headers;
191 /* Optional resolver replacements for curl (LEHO) */
192 struct curl_slist *resolver;
194 /* The URL to fetch */
197 /* The cURL write buffer / MHD read buffer */
198 char buffer[CURL_MAX_WRITE_SIZE];
200 /* The pointer to the data in the buffer */
203 /* The buffer status (BUF_WAIT_FOR_CURL or BUF_WAIT_FOR_MHD) */
206 /* Number of bytes in buffer */
207 unsigned int bytes_in_buffer;
209 /* Indicates wheather the download is in progress */
210 int download_in_progress;
212 /* Indicates wheather the download was successful */
213 int download_successful;
215 /* Indicates wheather the download failed */
218 /* Indicates wheather we need to parse HTML */
221 /* Indicates wheather we are postprocessing the HTML right now */
222 int is_postprocessing;
224 /* Indicates wheather postprocessing has finished */
227 /* Task ID of the postprocessing task */
228 GNUNET_SCHEDULER_TaskIdentifier pp_task;
230 /* The postprocessing buffer TODO length? */
233 /* The authority of the corresponding host (site of origin) */
236 /* The hostname (Host header field) */
239 /* The LEgacy HOstname (can be empty) */
242 /* The associated daemon list entry */
243 struct MhdHttpList *mhd;
245 /* The associated response */
246 struct MHD_Response *response;
250 /* The port the proxy is running on (default 7777) */
251 static unsigned long port = GNUNET_GNS_PROXY_PORT;
253 /* The CA file (pem) to use for the proxy CA */
254 static char* cafile_opt;
256 /* The listen socket of the proxy */
257 static struct GNUNET_NETWORK_Handle *lsock;
259 /* The listen task ID */
260 GNUNET_SCHEDULER_TaskIdentifier ltask;
262 /* The cURL download task */
263 GNUNET_SCHEDULER_TaskIdentifier curl_download_task;
265 /* The non SSL httpd daemon handle */
266 static struct MHD_Daemon *httpd;
268 /* Number of current mhd connections */
269 static unsigned int total_mhd_connections;
271 /* The cURL multi handle */
272 static CURLM *curl_multi;
274 /* Handle to the GNS service */
275 static struct GNUNET_GNS_Handle *gns_handle;
277 /* DLL for ProxyCurlTasks */
278 static struct ProxyCurlTask *ctasks_head;
280 /* DLL for ProxyCurlTasks */
281 static struct ProxyCurlTask *ctasks_tail;
283 /* DLL for http daemons */
284 static struct MhdHttpList *mhd_httpd_head;
286 /* DLL for http daemons */
287 static struct MhdHttpList *mhd_httpd_tail;
289 /* Handle to the regex for dotplus (.+) replacement in HTML */
290 static regex_t re_dotplus;
292 /* The users local GNS zone hash */
293 static struct GNUNET_CRYPTO_ShortHashCode local_gns_zone;
295 /* The users local shorten zone hash */
296 static struct GNUNET_CRYPTO_ShortHashCode local_shorten_zone;
298 /* The CA for SSL certificate generation */
299 static struct ProxyCA proxy_ca;
301 /* UNIX domain socket for mhd */
302 struct GNUNET_NETWORK_Handle *mhd_unix_socket;
308 * Checks if name is in tld
310 * @param name the name to check
311 * @param tld the TLD to check for
312 * @return GNUNET_YES or GNUNET_NO
315 is_tld(const char* name, const char* tld)
319 if (strlen(name) <= strlen(tld))
324 offset = strlen(name)-strlen(tld);
325 if (strcmp (name+offset, tld) != 0)
327 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
328 "%s is not in .%s TLD\n", name, tld);
337 * Read HTTP request header field 'Host'
339 * @param cls buffer to write to
340 * @param kind value kind
341 * @param key field key
342 * @param value field value
343 * @return MHD_NO when Host found
346 con_val_iter (void *cls,
347 enum MHD_ValueKind kind,
351 char* buf = (char*)cls;
353 if (0 == strcmp ("Host", key))
363 * Check HTTP response header for mime
365 * @param buffer curl buffer
366 * @param size curl blocksize
367 * @param nmemb curl blocknumber
369 * @return size of read bytes
372 curl_check_hdr (void *buffer, size_t size, size_t nmemb, void *cls)
374 size_t bytes = size * nmemb;
375 struct ProxyCurlTask *ctask = cls;
376 int len = strlen (HTML_HDR_CONTENT);
379 if ( (len+1) > bytes)
382 memcpy (hdr, buffer, len);
385 if (0 == strcmp (hdr, HTML_HDR_CONTENT))
387 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
388 "Got HTML HTTP response header\n");
389 ctask->parse_content = GNUNET_YES;
398 * @param hd a http daemon list entry
401 run_httpd (struct MhdHttpList *hd);
413 * Task that simply runs MHD main loop
416 * @param tc task context
419 run_mhd (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
422 struct MhdHttpList *hd = cls;
424 //for (hd=mhd_httpd_head; hd != NULL; hd = hd->next)
425 MHD_run (hd->daemon);
430 * Process cURL download bits
432 * @param ptr buffer with data
433 * @param size size of a record
434 * @param nmemb number of records downloaded
436 * @return number of processed bytes
439 callback_download (void *ptr, size_t size, size_t nmemb, void *ctx)
441 const char *cbuf = ptr;
443 struct ProxyCurlTask *ctask = ctx;
454 if (total > sizeof (ctask->buffer))
456 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
457 "CURL gave us too much data to handle (%d)!\n",
462 if (ctask->buf_status == BUF_WAIT_FOR_MHD)
464 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
465 "CURL: Waiting for MHD (%s)\n", ctask->url);
466 return CURL_WRITEFUNC_PAUSE;
470 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
471 "CURL: Copying to MHD (%s, %d)\n", ctask->url, total);
472 memcpy (ctask->buffer, cbuf, total);
473 ctask->bytes_in_buffer = total;
474 ctask->buffer_ptr = ctask->buffer;
476 ctask->buf_status = BUF_WAIT_FOR_MHD;
478 //GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
479 // "cURL chunk:\n%s\n", (char*)ctask->buffer);
480 //run_mhd (NULL, NULL);
481 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
486 * Ask cURL for the select sets and schedule download
489 curl_download_prepare ();
492 * Callback to free content
494 * @param cls content to free
495 * @param tc task context
498 mhd_content_free (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
500 struct ProxyCurlTask *ctask = cls;
502 if (NULL != ctask->headers)
503 curl_slist_free_all (ctask->headers);
505 if (NULL != ctask->headers)
506 curl_slist_free_all (ctask->resolver);
508 if (NULL != ctask->response)
509 MHD_destroy_response (ctask->response);
517 * Shorten result callback
519 * @param cls the proxycurltask
520 * @param short_name the shortened name (NULL on error)
523 process_shorten (void* cls, const char* short_name)
525 struct ProxyCurlTask *ctask = cls;
527 char tmp[strlen(ctask->pp_buf)]; //TODO length
529 if (NULL == short_name)
531 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
532 "MHD PP: Unable to shorten %s\n",
537 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
538 "MHD PP: Shorten %s -> %s\n",
542 sprintf (tmp, "<a href=\"http://%s", short_name);
543 strcpy (ctask->pp_buf, tmp);
545 ctask->pp_finished = GNUNET_YES;
547 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
552 * Callback for MHD response
555 * @param pos in buffer
557 * @param max space in buffer
558 * @return number of bytes written
561 mhd_content_cb (void *cls,
566 struct ProxyCurlTask *ctask = cls;
568 size_t bytes_to_copy;
571 regmatch_t m[RE_N_MATCHES];
573 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
574 "MHD: content cb %s\n", ctask->url);
576 if (ctask->download_successful &&
577 (ctask->buf_status == BUF_WAIT_FOR_CURL))
579 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
580 "MHD: sending response for %s\n", ctask->url);
581 ctask->download_in_progress = GNUNET_NO;
582 GNUNET_SCHEDULER_add_now (&mhd_content_free, ctask);
583 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
584 total_mhd_connections--;
585 return MHD_CONTENT_READER_END_OF_STREAM;
588 if (ctask->download_error &&
589 (ctask->buf_status == BUF_WAIT_FOR_CURL))
591 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
592 "MHD: sending error response\n");
593 ctask->download_in_progress = GNUNET_NO;
594 GNUNET_SCHEDULER_add_now (&mhd_content_free, ctask);
595 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
596 total_mhd_connections--;
597 return MHD_CONTENT_READER_END_WITH_ERROR;
600 if ( ctask->buf_status == BUF_WAIT_FOR_CURL )
603 bytes_to_copy = ctask->bytes_in_buffer;
605 if (ctask->parse_content == GNUNET_YES)
608 GNUNET_log ( GNUNET_ERROR_TYPE_DEBUG,
609 "MHD: We need to parse the HTML %s\n", ctask->buffer_ptr);
611 nomatch = regexec ( &re_dotplus, ctask->buffer_ptr, RE_N_MATCHES, m, 0);
615 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
616 "MHD RE: No match\n");
620 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
623 GNUNET_assert (m[1].rm_so != -1);
625 hostptr = ctask->buffer_ptr+m[1].rm_so;
629 bytes_to_copy = m[0].rm_so;
630 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
631 "Copying %d bytes.\n", m[0].rm_so);
637 if (ctask->is_postprocessing == GNUNET_YES)
641 if ( ctask->pp_finished == GNUNET_NO )
643 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
644 "MHD PP: Waiting for PP of %s\n", ctask->pp_buf);
648 ctask->is_postprocessing = GNUNET_NO;
650 ctask->bytes_in_buffer -= m[0].rm_eo;//(m[1].rm_eo-m[1].rm_so);
651 ctask->buffer_ptr += m[0].rm_eo;//(m[1].rm_eo-m[1].rm_so);
652 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
653 "Skipping next %d bytes in buffer\n", m[0].rm_eo);
655 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
657 if ( strlen (ctask->pp_buf) <= max )
659 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
660 "Copying postprocessed %s.\n", ctask->pp_buf);
661 memcpy ( buf, ctask->pp_buf, strlen (ctask->pp_buf) );
662 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
664 ctask->is_postprocessing = GNUNET_NO;
665 return strlen (ctask->pp_buf);
671 memset (ctask->pp_buf, 0, sizeof(ctask->pp_buf));
673 /* If .+ extend with authority */
674 if (*(ctask->buffer_ptr+m[1].rm_eo) == '+')
676 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
678 memcpy (ctask->pp_buf, hostptr, (m[1].rm_eo-m[1].rm_so));
679 strcpy ( ctask->pp_buf+strlen(ctask->pp_buf),
682 /* If .zkey simply copy the name */
685 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
687 memcpy (ctask->pp_buf, hostptr, (m[1].rm_eo-m[1].rm_so + strlen (GNUNET_GNS_TLD_ZKEY)));
690 ctask->is_postprocessing = GNUNET_YES;
691 ctask->pp_finished = GNUNET_NO;
693 GNUNET_GNS_shorten (gns_handle,
703 if ( bytes_to_copy > max )
705 GNUNET_log ( GNUNET_ERROR_TYPE_DEBUG,
706 "MHD: buffer in response too small! (%s)\n",
708 memcpy ( buf, ctask->buffer_ptr, max);
709 ctask->bytes_in_buffer -= max;
710 ctask->buffer_ptr += max;
715 GNUNET_log ( GNUNET_ERROR_TYPE_DEBUG,
716 "MHD: copying %d bytes to mhd response at offset %d\n",
719 memcpy ( buf, ctask->buffer_ptr, bytes_to_copy );
720 copied = bytes_to_copy;
721 if (bytes_to_copy < ctask->bytes_in_buffer)
723 ctask->bytes_in_buffer -= bytes_to_copy;
724 ctask->buffer_ptr += bytes_to_copy;
728 ctask->bytes_in_buffer = 0;
729 ctask->buf_status = BUF_WAIT_FOR_CURL;
730 ctask->buffer_ptr = ctask->buffer;
731 if (NULL != ctask->curl)
732 curl_easy_pause (ctask->curl, CURLPAUSE_CONT);
733 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
737 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
745 * Task that is run when we are ready to receive more data
749 * @param tc task context
752 curl_task_download (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
755 * Ask cURL for the select sets and schedule download
758 curl_download_prepare ()
765 struct GNUNET_NETWORK_FDSet *grs;
766 struct GNUNET_NETWORK_FDSet *gws;
768 struct GNUNET_TIME_Relative rtime;
774 mret = curl_multi_fdset (curl_multi, &rs, &ws, &es, &max);
776 if (mret != CURLM_OK)
778 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
779 "%s failed at %s:%d: `%s'\n",
780 "curl_multi_fdset", __FILE__, __LINE__,
781 curl_multi_strerror (mret));
786 mret = curl_multi_timeout (curl_multi, &to);
787 rtime = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, to);
789 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
790 "cURL multi fds: max=%d timeout=%llu\n", max, to);
792 grs = GNUNET_NETWORK_fdset_create ();
793 gws = GNUNET_NETWORK_fdset_create ();
794 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
795 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
796 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
797 "Scheduling task cURL\n");
799 if (curl_download_task != GNUNET_SCHEDULER_NO_TASK)
800 GNUNET_SCHEDULER_cancel (curl_download_task);
803 GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
806 &curl_task_download, curl_multi);
807 GNUNET_NETWORK_fdset_destroy (gws);
808 GNUNET_NETWORK_fdset_destroy (grs);
814 * Task that is run when we are ready to receive more data
818 * @param tc task context
821 curl_task_download (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
827 struct ProxyCurlTask *ctask;
830 struct ProxyCurlTask *clean_head = NULL;
831 struct ProxyCurlTask *clean_tail = NULL;
833 curl_download_task = GNUNET_SCHEDULER_NO_TASK;
835 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
837 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
838 "Shutdown requested while trying to download\n");
842 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
850 mret = curl_multi_perform (curl_multi, &running);
852 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
853 "Running curl tasks: %d\n", running);
856 for (; ctask != NULL; ctask = ctask->next)
858 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
859 "CTask: %s\n", ctask->url);
863 if (num_ctasks != running)
865 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
866 "%d ctasks, %d curl running\n", num_ctasks, running);
872 msg = curl_multi_info_read (curl_multi, &msgnum);
873 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
874 "Messages left: %d\n", msgnum);
881 if ((msg->data.result != CURLE_OK) &&
882 (msg->data.result != CURLE_GOT_NOTHING))
884 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
885 "Download curl failed");
887 for (; ctask != NULL; ctask = ctask->next)
889 if (NULL == ctask->curl)
892 if (memcmp (msg->easy_handle, ctask->curl, sizeof (CURL)) != 0)
895 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
896 "Download curl failed for task %s: %s.\n",
898 curl_easy_strerror (msg->data.result));
899 ctask->download_successful = GNUNET_NO;
900 ctask->download_error = GNUNET_YES;
901 //curl_multi_remove_handle (curl_multi, ctask->curl);
902 //curl_easy_cleanup (ctask->curl);
903 //ctask->curl = NULL;
904 GNUNET_CONTAINER_DLL_remove (ctasks_head, ctasks_tail,
906 GNUNET_CONTAINER_DLL_insert (clean_head, clean_tail, ctask);
909 GNUNET_assert (ctask != NULL);
913 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
914 "cURL download completed.\n");
916 for (; ctask != NULL; ctask = ctask->next)
918 if (NULL == ctask->curl)
921 if (memcmp (msg->easy_handle, ctask->curl, sizeof (CURL)) != 0)
924 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
925 "cURL task %s found.\n", ctask->url);
926 ctask->download_successful = GNUNET_YES;
927 //curl_multi_remove_handle (curl_multi, ctask->curl);
928 //curl_easy_cleanup (ctask->curl);
929 //ctask->curl = NULL;
930 GNUNET_CONTAINER_DLL_remove (ctasks_head, ctasks_tail,
932 GNUNET_CONTAINER_DLL_insert (clean_head, clean_tail, ctask);
936 GNUNET_assert (ctask != NULL);
938 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
939 "curl end %s\n", curl_easy_strerror(msg->data.result));
945 } while (msgnum > 0);
947 for (ctask=clean_head; ctask != NULL; ctask = ctask->next)
949 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
950 "Removing cURL task %s.\n", ctask->url);
951 curl_multi_remove_handle (curl_multi, ctask->curl);
952 curl_easy_cleanup (ctask->curl);
957 for (ctask=ctasks_head; ctask != NULL; ctask = ctask->next)
962 if (num_ctasks != running)
964 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
965 "%d ctasks, %d curl running\n", num_ctasks, running);
968 GNUNET_assert ( num_ctasks == running );
972 } while (mret == CURLM_CALL_MULTI_PERFORM);
975 if (mret != CURLM_OK)
977 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "%s failed at %s:%d: `%s'\n",
978 "curl_multi_perform", __FILE__, __LINE__,
979 curl_multi_strerror (mret));
981 curl_download_prepare();
985 * Process LEHO lookup
987 * @param cls the ctask
988 * @param rd_count number of records returned
989 * @param rd record data
992 process_leho_lookup (void *cls,
994 const struct GNUNET_NAMESTORE_RecordData *rd)
996 struct ProxyCurlTask *ctask = cls;
997 char hosthdr[262]; //256 + "Host: "
1001 struct hostent *phost;
1003 char resolvename[512];
1006 ctask->headers = NULL;
1008 strcpy (ctask->leho, "");
1011 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1012 "No LEHO present!\n");
1014 for (i=0; i<rd_count; i++)
1016 if (rd[i].record_type != GNUNET_GNS_RECORD_LEHO)
1019 memcpy (ctask->leho, rd[i].data, rd[i].data_size);
1021 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1022 "Found LEHO %s for %s\n", ctask->leho, ctask->url);
1025 if (0 != strcmp (ctask->leho, ""))
1027 sprintf (hosthdr, "%s%s", "Host: ", ctask->leho);
1028 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1029 "New HTTP header value: %s\n", hosthdr);
1030 ctask->headers = curl_slist_append (ctask->headers, hosthdr);
1031 GNUNET_assert (NULL != ctask->headers);
1032 ret = curl_easy_setopt (ctask->curl, CURLOPT_HTTPHEADER, ctask->headers);
1033 if (CURLE_OK != ret)
1035 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "%s failed at %s:%d: `%s'\n",
1036 "curl_easy_setopt", __FILE__, __LINE__, curl_easy_strerror(ret));
1041 if (ctask->mhd->is_ssl)
1043 phost = (struct hostent*)gethostbyname (ctask->host);
1047 ssl_ip = inet_ntoa(*((struct in_addr*)(phost->h_addr)));
1048 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1049 "SSL target server: %s\n", ssl_ip);
1050 sprintf (resolvename, "%s:%d:%s", ctask->leho, HTTPS_PORT, ssl_ip);
1051 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1052 "Curl resolve: %s\n", resolvename);
1053 ctask->resolver = curl_slist_append ( ctask->resolver, resolvename);
1054 curl_easy_setopt (ctask->curl, CURLOPT_RESOLVE, ctask->resolver);
1055 sprintf (curlurl, "https://%s%s", ctask->leho, ctask->url);
1056 curl_easy_setopt (ctask->curl, CURLOPT_URL, curlurl);
1060 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1061 "gethostbyname failed for %s!\n", ctask->host);
1062 ctask->download_successful = GNUNET_NO;
1063 ctask->download_error = GNUNET_YES;
1068 if (CURLM_OK != (mret=curl_multi_add_handle (curl_multi, ctask->curl)))
1070 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1071 "%s failed at %s:%d: `%s'\n",
1072 "curl_multi_add_handle", __FILE__, __LINE__,
1073 curl_multi_strerror (mret));
1074 ctask->download_successful = GNUNET_NO;
1075 ctask->download_error = GNUNET_YES;
1078 GNUNET_CONTAINER_DLL_insert (ctasks_head, ctasks_tail, ctask);
1080 curl_download_prepare ();
1085 * Initialize download and trigger curl
1087 * @param cls the proxycurltask
1088 * @param auth_name the name of the authority (site of origin) of ctask->host
1092 process_get_authority (void *cls,
1093 const char* auth_name)
1095 struct ProxyCurlTask *ctask = cls;
1097 if (NULL == auth_name)
1099 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1100 "Get authority failed!\n");
1101 strcpy (ctask->authority, "");
1105 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1106 "Get authority yielded %s\n", auth_name);
1107 strcpy (ctask->authority, auth_name);
1110 GNUNET_GNS_lookup_zone (gns_handle,
1113 &local_shorten_zone,
1114 GNUNET_GNS_RECORD_LEHO,
1115 GNUNET_YES, //Only cached for performance
1116 &process_leho_lookup,
1121 * Main MHD callback for handling requests.
1124 * @param con MHD connection handle
1125 * @param url the url in the request
1126 * @param meth the HTTP method used ("GET", "PUT", etc.)
1127 * @param ver the HTTP version string (i.e. "HTTP/1.1")
1128 * @param upload_data the data being uploaded (excluding HEADERS,
1129 * for a POST that fits into memory and that is encoded
1130 * with a supported encoding, the POST data will NOT be
1131 * given in upload_data and is instead available as
1132 * part of MHD_get_connection_values; very large POST
1133 * data *will* be made available incrementally in
1135 * @param upload_data_size set initially to the size of the
1136 * upload_data provided; the method must update this
1137 * value to the number of bytes NOT processed;
1138 * @param con_cls pointer to location where we store the 'struct Request'
1139 * @return MHD_YES if the connection was handled successfully,
1140 * MHD_NO if the socket must be closed due to a serious
1141 * error while handling the request
1144 create_response (void *cls,
1145 struct MHD_Connection *con,
1149 const char *upload_data,
1150 size_t *upload_data_size,
1154 struct MhdHttpList* hd = cls;
1155 const char* page = "<html><head><title>gnoxy</title>"\
1156 "</head><body>cURL fail</body></html>";
1162 struct ProxyCurlTask *ctask;
1164 if (0 != strcmp (meth, "GET"))
1166 if (&dummy != *con_cls)
1172 if (0 != *upload_data_size)
1177 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1180 MHD_get_connection_values (con,
1182 &con_val_iter, host);
1186 ctask = GNUNET_malloc (sizeof (struct ProxyCurlTask));
1189 if (curl_multi == NULL)
1190 curl_multi = curl_multi_init ();
1192 ctask->curl = curl_easy_init();
1194 if ((ctask->curl == NULL) || (curl_multi == NULL))
1196 ctask->response = MHD_create_response_from_buffer (strlen (page),
1198 MHD_RESPMEM_PERSISTENT);
1199 ret = MHD_queue_response (con,
1202 MHD_destroy_response (ctask->response);
1203 GNUNET_free (ctask);
1209 ctask->headers = NULL;
1210 ctask->resolver = NULL;
1211 ctask->buffer_ptr = NULL;
1212 ctask->download_in_progress = GNUNET_YES;
1213 ctask->download_successful = GNUNET_NO;
1214 ctask->buf_status = BUF_WAIT_FOR_CURL;
1215 ctask->bytes_in_buffer = 0;
1216 ctask->parse_content = GNUNET_NO;
1218 curl_easy_setopt (ctask->curl, CURLOPT_HEADERFUNCTION, &curl_check_hdr);
1219 curl_easy_setopt (ctask->curl, CURLOPT_HEADERDATA, ctask);
1220 curl_easy_setopt (ctask->curl, CURLOPT_WRITEFUNCTION, &callback_download);
1221 curl_easy_setopt (ctask->curl, CURLOPT_WRITEDATA, ctask);
1222 curl_easy_setopt (ctask->curl, CURLOPT_FOLLOWLOCATION, 1);
1223 curl_easy_setopt (ctask->curl, CURLOPT_MAXREDIRS, 4);
1224 /* no need to abort if the above failed */
1225 if (GNUNET_NO == ctask->mhd->is_ssl)
1227 sprintf (curlurl, "http://%s%s", host, url);
1228 curl_easy_setopt (ctask->curl, CURLOPT_URL, curlurl);
1229 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1230 "Adding new curl task for %s\n", curlurl);
1232 strcpy (ctask->host, host);
1233 strcpy (ctask->url, url);
1235 //curl_easy_setopt (ctask->curl, CURLOPT_URL, curlurl);
1236 curl_easy_setopt (ctask->curl, CURLOPT_FAILONERROR, 1);
1237 curl_easy_setopt (ctask->curl, CURLOPT_CONNECTTIMEOUT, 600L);
1238 curl_easy_setopt (ctask->curl, CURLOPT_TIMEOUT, 600L);
1240 GNUNET_GNS_get_authority (gns_handle,
1242 &process_get_authority,
1244 //download_prepare (ctask);
1245 //curl_download_prepare ();
1247 ctask->response = MHD_create_response_from_callback (MHD_SIZE_UNKNOWN,
1253 ret = MHD_queue_response (con, MHD_HTTP_OK, ctask->response);
1255 //MHD_destroy_response (response);
1261 * Task run whenever HTTP server operations are pending.
1264 * @param tc sched context
1267 do_httpd (void *cls,
1268 const struct GNUNET_SCHEDULER_TaskContext *tc);
1277 struct MhdHttpList *hd;
1279 for (hd=mhd_httpd_head; hd != NULL; hd = hd->next)
1287 * @param hd the daemon to run
1290 run_httpd (struct MhdHttpList *hd)
1295 struct GNUNET_NETWORK_FDSet *wrs;
1296 struct GNUNET_NETWORK_FDSet *wws;
1297 struct GNUNET_NETWORK_FDSet *wes;
1300 unsigned MHD_LONG_LONG timeout;
1301 struct GNUNET_TIME_Relative tv;
1306 wrs = GNUNET_NETWORK_fdset_create ();
1307 wes = GNUNET_NETWORK_fdset_create ();
1308 wws = GNUNET_NETWORK_fdset_create ();
1310 GNUNET_assert (MHD_YES == MHD_get_fdset (hd->daemon, &rs, &ws, &es, &max));
1313 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1314 "MHD fds: max=%d\n", max);
1316 haveto = MHD_get_timeout (hd->daemon, &timeout);
1318 if (haveto == MHD_YES)
1319 tv.rel_value = (uint64_t) timeout;
1321 tv = GNUNET_TIME_UNIT_FOREVER_REL;
1322 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max + 1);
1323 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max + 1);
1324 GNUNET_NETWORK_fdset_copy_native (wes, &es, max + 1);
1326 if (hd->httpd_task != GNUNET_SCHEDULER_NO_TASK)
1327 GNUNET_SCHEDULER_cancel (hd->httpd_task);
1329 GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_HIGH,
1332 GNUNET_NETWORK_fdset_destroy (wrs);
1333 GNUNET_NETWORK_fdset_destroy (wws);
1334 GNUNET_NETWORK_fdset_destroy (wes);
1339 * Task run whenever HTTP server operations are pending.
1342 * @param tc sched context
1345 do_httpd (void *cls,
1346 const struct GNUNET_SCHEDULER_TaskContext *tc)
1348 struct MhdHttpList *hd = cls;
1350 hd->httpd_task = GNUNET_SCHEDULER_NO_TASK;
1352 MHD_run (hd->daemon);
1358 * Read data from socket
1360 * @param cls the closure
1361 * @param tc scheduler context
1364 do_read (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
1367 * Read from remote end
1369 * @param cls closure
1370 * @param tc scheduler context
1373 do_read_remote (void* cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
1376 * Write data to remote socket
1378 * @param cls the closure
1379 * @param tc scheduler context
1382 do_write_remote (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1384 struct Socks5Request *s5r = cls;
1387 s5r->fwdwtask = GNUNET_SCHEDULER_NO_TASK;
1389 if ((NULL != tc->read_ready) &&
1390 (GNUNET_NETWORK_fdset_isset (tc->write_ready, s5r->remote_sock)) &&
1391 ((len = GNUNET_NETWORK_socket_send (s5r->remote_sock, s5r->rbuf,
1394 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1395 "Successfully sent %d bytes to remote socket\n",
1400 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "write remote");
1402 if (s5r->rtask != GNUNET_SCHEDULER_NO_TASK)
1403 GNUNET_SCHEDULER_cancel (s5r->rtask);
1404 if (s5r->wtask != GNUNET_SCHEDULER_NO_TASK)
1405 GNUNET_SCHEDULER_cancel (s5r->wtask);
1406 if (s5r->fwdrtask != GNUNET_SCHEDULER_NO_TASK)
1407 GNUNET_SCHEDULER_cancel (s5r->fwdrtask);
1408 GNUNET_NETWORK_socket_close (s5r->remote_sock);
1409 GNUNET_NETWORK_socket_close (s5r->sock);
1415 GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
1422 * Clean up s5r handles
1424 * @param s5r the handle to destroy
1427 cleanup_s5r (struct Socks5Request *s5r)
1429 if (s5r->rtask != GNUNET_SCHEDULER_NO_TASK)
1430 GNUNET_SCHEDULER_cancel (s5r->rtask);
1431 if (s5r->fwdwtask != GNUNET_SCHEDULER_NO_TASK)
1432 GNUNET_SCHEDULER_cancel (s5r->fwdwtask);
1433 if (s5r->fwdrtask != GNUNET_SCHEDULER_NO_TASK)
1434 GNUNET_SCHEDULER_cancel (s5r->fwdrtask);
1436 if (NULL != s5r->remote_sock)
1437 GNUNET_NETWORK_socket_close (s5r->remote_sock);
1438 if ((NULL != s5r->sock) && (s5r->cleanup_sock == GNUNET_YES))
1439 GNUNET_NETWORK_socket_close (s5r->sock);
1445 * Write data to socket
1447 * @param cls the closure
1448 * @param tc scheduler context
1451 do_write (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1453 struct Socks5Request *s5r = cls;
1456 s5r->wtask = GNUNET_SCHEDULER_NO_TASK;
1458 if ((NULL != tc->read_ready) &&
1459 (GNUNET_NETWORK_fdset_isset (tc->write_ready, s5r->sock)) &&
1460 ((len = GNUNET_NETWORK_socket_send (s5r->sock, s5r->wbuf,
1463 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1464 "Successfully sent %d bytes to socket\n",
1470 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "write");
1471 s5r->cleanup = GNUNET_YES;
1472 s5r->cleanup_sock = GNUNET_YES;
1478 if (GNUNET_YES == s5r->cleanup)
1484 if ((s5r->state == SOCKS5_DATA_TRANSFER) &&
1485 (s5r->fwdrtask == GNUNET_SCHEDULER_NO_TASK))
1487 GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
1489 &do_read_remote, s5r);
1493 * Read from remote end
1495 * @param cls closure
1496 * @param tc scheduler context
1499 do_read_remote (void* cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1501 struct Socks5Request *s5r = cls;
1503 s5r->fwdrtask = GNUNET_SCHEDULER_NO_TASK;
1506 if ((NULL != tc->write_ready) &&
1507 (GNUNET_NETWORK_fdset_isset (tc->read_ready, s5r->remote_sock)) &&
1508 (s5r->wbuf_len = GNUNET_NETWORK_socket_recv (s5r->remote_sock, s5r->wbuf,
1509 sizeof (s5r->wbuf))))
1511 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1512 "Successfully read %d bytes from remote socket\n",
1517 if (s5r->wbuf_len == 0)
1518 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1519 "0 bytes received from remote... graceful shutdown!\n");
1520 if (s5r->fwdwtask != GNUNET_SCHEDULER_NO_TASK)
1521 GNUNET_SCHEDULER_cancel (s5r->fwdwtask);
1522 if (s5r->rtask != GNUNET_SCHEDULER_NO_TASK)
1523 GNUNET_SCHEDULER_cancel (s5r->rtask);
1525 GNUNET_NETWORK_socket_close (s5r->remote_sock);
1526 s5r->remote_sock = NULL;
1527 GNUNET_NETWORK_socket_close (s5r->sock);
1533 s5r->wtask = GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
1541 * Adds a socket to MHD
1543 * @param h the handle to the socket to add
1544 * @param daemon the daemon to add the fd to
1545 * @return whatever MHD_add_connection returns
1548 add_handle_to_mhd (struct GNUNET_NETWORK_Handle *h, struct MHD_Daemon *daemon)
1551 struct sockaddr *addr;
1554 fd = dup (GNUNET_NETWORK_get_fd (h));
1555 addr = GNUNET_NETWORK_get_addr (h);
1556 len = GNUNET_NETWORK_get_addrlen (h);
1558 return MHD_add_connection (daemon, fd, addr, len);
1562 * Calculate size of file
1564 * @param filename name of file
1565 * @return filesize or 0 on error
1568 get_file_size (const char* filename)
1572 fp = fopen (filename, "rb");
1577 if ((0 != fseek (fp, 0, SEEK_END)) || (-1 == (size = ftell (fp))))
1589 * Read file in filename
1591 * @param filename file to read
1592 * @param size pointer where filesize is stored
1596 load_file (const char* filename, unsigned int* size)
1601 *size = get_file_size (filename);
1605 fp = fopen (filename, "rb");
1609 buffer = GNUNET_malloc (*size);
1616 if (*size != fread (buffer, 1, *size, fp))
1618 GNUNET_free (buffer);
1627 * Load PEM key from file
1629 * @param key where to store the data
1630 * @param keyfile path to the PEM file
1633 load_key_from_file (gnutls_x509_privkey_t key, char* keyfile)
1635 gnutls_datum_t key_data;
1636 key_data.data = NULL;
1639 key_data.data = (unsigned char*)load_file (keyfile, &key_data.size);
1641 ret = gnutls_x509_privkey_import (key, &key_data,
1642 GNUTLS_X509_FMT_PEM);
1644 if (GNUTLS_E_SUCCESS != ret)
1646 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1647 "Unable to import private key %s(ret=%d)\n", key_data.data, ret);
1651 GNUNET_free (key_data.data);
1655 * Load cert from file
1657 * @param crt struct to store data in
1658 * @param certfile path to pem file
1661 load_cert_from_file (gnutls_x509_crt_t crt, char* certfile)
1663 gnutls_datum_t cert_data;
1664 cert_data.data = NULL;
1667 cert_data.data = (unsigned char*)load_file (certfile, &cert_data.size);
1669 ret = gnutls_x509_crt_import (crt, &cert_data,
1670 GNUTLS_X509_FMT_PEM);
1671 if (GNUTLS_E_SUCCESS != ret)
1673 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1674 "Unable to import certificate %s(ret=%d)\n", certfile, ret);
1678 GNUNET_free (cert_data.data);
1684 * Generate new certificate for specific name
1686 * @param name the subject name to generate a cert for
1687 * @return a struct holding the PEM data
1689 static struct ProxyGNSCertificate *
1690 generate_gns_certificate (const char *name)
1694 unsigned int serial;
1695 size_t key_buf_size;
1696 size_t cert_buf_size;
1697 gnutls_x509_crt_t request;
1701 ret = gnutls_x509_crt_init (&request);
1703 if (GNUTLS_E_SUCCESS != ret)
1708 ret = gnutls_x509_crt_set_key (request, proxy_ca.key);
1710 if (GNUTLS_E_SUCCESS != ret)
1715 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Generating cert\n");
1717 struct ProxyGNSCertificate *pgc =
1718 GNUNET_malloc (sizeof (struct ProxyGNSCertificate));
1720 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Adding DNs\n");
1722 gnutls_x509_crt_set_dn_by_oid (request, GNUTLS_OID_X520_COUNTRY_NAME,
1725 gnutls_x509_crt_set_dn_by_oid (request, GNUTLS_OID_X520_ORGANIZATION_NAME,
1728 gnutls_x509_crt_set_dn_by_oid (request, GNUTLS_OID_X520_COMMON_NAME,
1729 0, name, strlen (name));
1731 ret = gnutls_x509_crt_set_version (request, 3);
1733 ret = gnutls_rnd (GNUTLS_RND_NONCE, &serial, sizeof (serial));
1735 etime = time (NULL);
1736 tm_data = localtime (&etime);
1739 ret = gnutls_x509_crt_set_serial (request,
1743 ret = gnutls_x509_crt_set_activation_time (request,
1746 etime = mktime (tm_data);
1753 ret = gnutls_x509_crt_set_expiration_time (request,
1755 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Signing...\n");
1757 ret = gnutls_x509_crt_sign (request, proxy_ca.cert, proxy_ca.key);
1759 key_buf_size = sizeof (pgc->key);
1760 cert_buf_size = sizeof (pgc->cert);
1762 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Exporting certificate...\n");
1764 gnutls_x509_crt_export (request, GNUTLS_X509_FMT_PEM,
1765 pgc->cert, &cert_buf_size);
1767 gnutls_x509_privkey_export (proxy_ca.key, GNUTLS_X509_FMT_PEM,
1768 pgc->key, &key_buf_size);
1771 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Cleaning up\n");
1772 gnutls_x509_crt_deinit (request);
1780 * Accept policy for mhdaemons
1783 * @param addr the sockaddr
1784 * @param addrlen the sockaddr length
1785 * @return MHD_NO if sockaddr is wrong or #conns too high
1788 accept_cb (void* cls, const struct sockaddr *addr, socklen_t addrlen)
1790 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1791 "In MHD accept policy cb\n");
1795 if (addr->sa_family == AF_UNIX)
1799 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1800 "Connection accepted\n");
1807 * Adds a socket to an SSL MHD instance
1808 * It is important the the domain name is
1809 * correct. In most cases we need to start a new daemon
1811 * @param h the handle to add to a daemon
1812 * @praram domain the domain the ssl daemon has to serve
1813 * @return MHD_YES on success
1816 add_handle_to_ssl_mhd (struct GNUNET_NETWORK_Handle *h, char* domain)
1818 struct MhdHttpList *hd = NULL;
1819 struct ProxyGNSCertificate *pgc;
1820 struct NetworkHandleList *nh;
1822 for (hd = mhd_httpd_head; hd != NULL; hd = hd->next)
1824 if (0 == strcmp (hd->domain, domain))
1831 pgc = generate_gns_certificate (domain);
1833 hd = GNUNET_malloc (sizeof (struct MhdHttpList));
1834 hd->is_ssl = GNUNET_YES;
1835 strcpy (hd->domain, domain);
1836 hd->proxy_cert = pgc;
1839 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1840 "No previous SSL instance found... starting new one for %s\n",
1843 hd->daemon = MHD_start_daemon (MHD_USE_DEBUG | MHD_USE_SSL, 4444,
1845 &create_response, hd,
1846 MHD_OPTION_LISTEN_SOCKET, GNUNET_NETWORK_get_fd (mhd_unix_socket),
1847 MHD_OPTION_CONNECTION_LIMIT, MHD_MAX_CONNECTIONS,
1848 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 16,
1849 MHD_OPTION_NOTIFY_COMPLETED,
1851 MHD_OPTION_HTTPS_MEM_KEY, pgc->key,
1852 MHD_OPTION_HTTPS_MEM_CERT, pgc->cert,
1855 GNUNET_assert (hd->daemon != NULL);
1856 hd->httpd_task = GNUNET_SCHEDULER_NO_TASK;
1858 GNUNET_CONTAINER_DLL_insert (mhd_httpd_head, mhd_httpd_tail, hd);
1861 nh = GNUNET_malloc (sizeof (struct NetworkHandleList));
1864 GNUNET_CONTAINER_DLL_insert (hd->socket_handles_head,
1865 hd->socket_handles_tail,
1868 return add_handle_to_mhd (h, hd->daemon);
1874 * Read data from incoming connection
1876 * @param cls the closure
1877 * @param tc the scheduler context
1880 do_read (void* cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1882 struct Socks5Request *s5r = cls;
1883 struct socks5_client_hello *c_hello;
1884 struct socks5_server_hello *s_hello;
1885 struct socks5_client_request *c_req;
1886 struct socks5_server_response *s_resp;
1892 struct hostent *phost;
1894 struct sockaddr_in remote_addr;
1895 struct in_addr *r_sin_addr;
1897 struct NetworkHandleList *nh;
1899 s5r->rtask = GNUNET_SCHEDULER_NO_TASK;
1901 if ((NULL != tc->write_ready) &&
1902 (GNUNET_NETWORK_fdset_isset (tc->read_ready, s5r->sock)) &&
1903 (s5r->rbuf_len = GNUNET_NETWORK_socket_recv (s5r->sock, s5r->rbuf,
1904 sizeof (s5r->rbuf))))
1906 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1907 "Successfully read %d bytes from socket\n",
1912 if (s5r->rbuf_len != 0)
1913 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "read");
1915 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "client disco!\n");
1917 if (s5r->fwdrtask != GNUNET_SCHEDULER_NO_TASK)
1918 GNUNET_SCHEDULER_cancel (s5r->fwdrtask);
1919 if (s5r->wtask != GNUNET_SCHEDULER_NO_TASK)
1920 GNUNET_SCHEDULER_cancel (s5r->wtask);
1921 if (s5r->fwdwtask != GNUNET_SCHEDULER_NO_TASK)
1922 GNUNET_SCHEDULER_cancel (s5r->fwdwtask);
1923 GNUNET_NETWORK_socket_close (s5r->remote_sock);
1924 GNUNET_NETWORK_socket_close (s5r->sock);
1929 if (s5r->state == SOCKS5_INIT)
1931 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1933 c_hello = (struct socks5_client_hello*)&s5r->rbuf;
1935 GNUNET_assert (c_hello->version == SOCKS_VERSION_5);
1937 s_hello = (struct socks5_server_hello*)&s5r->wbuf;
1938 s5r->wbuf_len = sizeof( struct socks5_server_hello );
1940 s_hello->version = c_hello->version;
1941 s_hello->auth_method = SOCKS_AUTH_NONE;
1943 /* Write response to client */
1944 s5r->wtask = GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
1948 s5r->rtask = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
1952 s5r->state = SOCKS5_REQUEST;
1956 if (s5r->state == SOCKS5_REQUEST)
1958 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1959 "Processing SOCKS5 request\n");
1960 c_req = (struct socks5_client_request*)&s5r->rbuf;
1961 s_resp = (struct socks5_server_response*)&s5r->wbuf;
1962 //Only 10byte for ipv4 response!
1963 s5r->wbuf_len = 10;//sizeof (struct socks5_server_response);
1965 GNUNET_assert (c_req->addr_type == 3);
1967 dom_len = *((uint8_t*)(&(c_req->addr_type) + 1));
1968 memset(domain, 0, sizeof(domain));
1969 strncpy(domain, (char*)(&(c_req->addr_type) + 2), dom_len);
1970 req_port = *((uint16_t*)(&(c_req->addr_type) + 2 + dom_len));
1972 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1973 "Requested connection is %s:%d\n",
1977 if (is_tld (domain, GNUNET_GNS_TLD) ||
1978 is_tld (domain, GNUNET_GNS_TLD_ZKEY))
1980 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1981 "Requested connection is gnunet tld\n",
1985 if (ntohs(req_port) == HTTPS_PORT)
1987 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1988 "Requested connection is HTTPS\n");
1989 ret = add_handle_to_ssl_mhd ( s5r->sock, domain );
1991 else if (NULL != httpd)
1993 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1994 "Requested connection is HTTP\n");
1995 nh = GNUNET_malloc (sizeof (struct NetworkHandleList));
1998 GNUNET_CONTAINER_DLL_insert (mhd_httpd_head->socket_handles_head,
1999 mhd_httpd_head->socket_handles_tail,
2002 ret = add_handle_to_mhd ( s5r->sock, httpd );
2007 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2008 _("Failed to start HTTP server\n"));
2009 s_resp->version = 0x05;
2010 s_resp->reply = 0x01;
2011 s5r->cleanup = GNUNET_YES;
2012 s5r->cleanup_sock = GNUNET_YES;
2014 GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
2020 /* Signal success */
2021 s_resp->version = 0x05;
2022 s_resp->reply = 0x00;
2023 s_resp->reserved = 0x00;
2024 s_resp->addr_type = 0x01;
2026 s5r->cleanup = GNUNET_YES;
2027 s5r->cleanup_sock = GNUNET_NO;
2029 GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
2037 phost = (struct hostent*)gethostbyname (domain);
2040 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2041 "Resolve %s error!\n", domain );
2042 s_resp->version = 0x05;
2043 s_resp->reply = 0x01;
2044 s5r->cleanup = GNUNET_YES;
2045 s5r->cleanup_sock = GNUNET_YES;
2047 GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
2053 s5r->remote_sock = GNUNET_NETWORK_socket_create (AF_INET,
2056 r_sin_addr = (struct in_addr*)(phost->h_addr);
2057 remote_ip = r_sin_addr->s_addr;
2058 memset(&remote_addr, 0, sizeof(remote_addr));
2059 remote_addr.sin_family = AF_INET;
2060 #if HAVE_SOCKADDR_IN_SIN_LEN
2061 remote_addr.sin_len = sizeof (remote_addr);
2063 remote_addr.sin_addr.s_addr = remote_ip;
2064 remote_addr.sin_port = req_port;
2066 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2067 "target server: %s:%u\n", inet_ntoa(remote_addr.sin_addr),
2071 GNUNET_NETWORK_socket_connect ( s5r->remote_sock,
2072 (const struct sockaddr*)&remote_addr,
2073 sizeof (remote_addr)))
2074 && (errno != EINPROGRESS))
2076 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "connect");
2077 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2078 "socket request error...\n");
2079 s_resp->version = 0x05;
2080 s_resp->reply = 0x01;
2082 GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
2089 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2090 "new remote connection\n");
2092 s_resp->version = 0x05;
2093 s_resp->reply = 0x00;
2094 s_resp->reserved = 0x00;
2095 s_resp->addr_type = 0x01;
2097 s5r->state = SOCKS5_DATA_TRANSFER;
2100 GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
2104 GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
2112 if (s5r->state == SOCKS5_DATA_TRANSFER)
2114 if ((s5r->remote_sock == NULL) || (s5r->rbuf_len == 0))
2116 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2117 "Closing connection to client\n");
2118 if (s5r->rtask != GNUNET_SCHEDULER_NO_TASK)
2119 GNUNET_SCHEDULER_cancel (s5r->rtask);
2120 if (s5r->fwdwtask != GNUNET_SCHEDULER_NO_TASK)
2121 GNUNET_SCHEDULER_cancel (s5r->fwdwtask);
2122 if (s5r->fwdrtask != GNUNET_SCHEDULER_NO_TASK)
2123 GNUNET_SCHEDULER_cancel (s5r->fwdrtask);
2124 if (s5r->fwdrtask != GNUNET_SCHEDULER_NO_TASK)
2125 GNUNET_SCHEDULER_cancel (s5r->fwdrtask);
2127 if (s5r->remote_sock != NULL)
2128 GNUNET_NETWORK_socket_close (s5r->remote_sock);
2129 GNUNET_NETWORK_socket_close (s5r->sock);
2134 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2135 "forwarding %d bytes from client\n", s5r->rbuf_len);
2138 GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
2140 &do_write_remote, s5r);
2142 if (s5r->fwdrtask == GNUNET_SCHEDULER_NO_TASK)
2145 GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
2147 &do_read_remote, s5r);
2153 //GNUNET_CONTAINER_DLL_remove (s5conns.head, s5conns.tail, s5r);
2159 * Accept new incoming connections
2161 * @param cls the closure
2162 * @param tc the scheduler context
2165 do_accept (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
2167 struct GNUNET_NETWORK_Handle *s;
2168 struct Socks5Request *s5r;
2170 ltask = GNUNET_SCHEDULER_NO_TASK;
2171 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
2174 ltask = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
2178 s = GNUNET_NETWORK_socket_accept (lsock, NULL, NULL);
2182 GNUNET_log_strerror (GNUNET_ERROR_TYPE_INFO, "accept");
2186 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2187 "Got an inbound connection, waiting for data\n");
2189 s5r = GNUNET_malloc (sizeof (struct Socks5Request));
2191 s5r->state = SOCKS5_INIT;
2192 s5r->wtask = GNUNET_SCHEDULER_NO_TASK;
2193 s5r->fwdwtask = GNUNET_SCHEDULER_NO_TASK;
2194 s5r->fwdrtask = GNUNET_SCHEDULER_NO_TASK;
2195 s5r->rtask = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
2198 //GNUNET_CONTAINER_DLL_insert (s5conns.head, s5conns.tail, s5r);
2203 * Task run on shutdown
2205 * @param cls closure
2206 * @param tc task context
2209 do_shutdown (void *cls,
2210 const struct GNUNET_SCHEDULER_TaskContext *tc)
2213 struct MhdHttpList *hd;
2214 struct MhdHttpList *tmp_hd;
2215 struct NetworkHandleList *nh;
2216 struct NetworkHandleList *tmp_nh;
2217 struct ProxyCurlTask *ctask;
2218 struct ProxyCurlTask *ctask_tmp;
2220 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
2221 "Shutting down...\n");
2223 gnutls_global_deinit ();
2225 if (GNUNET_SCHEDULER_NO_TASK != curl_download_task)
2227 GNUNET_SCHEDULER_cancel (curl_download_task);
2228 curl_download_task = GNUNET_SCHEDULER_NO_TASK;
2231 for (hd = mhd_httpd_head; hd != NULL; hd = tmp_hd)
2235 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2236 "Stopping daemon\n");
2238 if (GNUNET_SCHEDULER_NO_TASK != hd->httpd_task)
2240 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2241 "Stopping select task %d\n",
2243 GNUNET_SCHEDULER_cancel (hd->httpd_task);
2244 hd->httpd_task = GNUNET_SCHEDULER_NO_TASK;
2247 if (NULL != hd->daemon)
2249 MHD_stop_daemon (hd->daemon);
2253 for (nh = hd->socket_handles_head; nh != NULL; nh = tmp_nh)
2257 GNUNET_NETWORK_socket_close (nh->h);
2262 if (NULL != hd->proxy_cert)
2264 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2265 "Free certificate\n");
2266 GNUNET_free (hd->proxy_cert);
2272 for (ctask=ctasks_head; ctask != NULL; ctask=ctask_tmp)
2274 ctask_tmp = ctask->next;
2276 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2277 "Cleaning up cURL task\n");
2279 if (ctask->curl != NULL)
2280 curl_easy_cleanup (ctask->curl);
2282 if (NULL != ctask->headers)
2283 curl_slist_free_all (ctask->headers);
2284 if (NULL != ctask->resolver)
2285 curl_slist_free_all (ctask->resolver);
2287 if (NULL != ctask->response)
2288 MHD_destroy_response (ctask->response);
2291 GNUNET_free (ctask);
2294 GNUNET_GNS_disconnect (gns_handle);
2299 * Compiles a regex for us
2301 * @param re ptr to re struct
2302 * @param rt the expression to compile
2303 * @return 0 on success
2306 compile_regex (regex_t *re, const char* rt)
2311 status = regcomp (re, rt, REG_EXTENDED|REG_NEWLINE);
2314 regerror (status, re, err, 1024);
2315 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2316 "Regex error compiling '%s': %s\n", rt, err);
2324 * Loads the users local zone key
2326 * @return GNUNET_YES on success
2329 load_local_zone_key (const struct GNUNET_CONFIGURATION_Handle *cfg)
2332 struct GNUNET_CRYPTO_RsaPrivateKey *key = NULL;
2333 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pkey;
2334 struct GNUNET_CRYPTO_ShortHashCode *zone = NULL;
2335 struct GNUNET_CRYPTO_ShortHashAsciiEncoded zonename;
2337 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
2338 "ZONEKEY", &keyfile))
2340 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2341 "Unable to load zone key config value!\n");
2345 if (GNUNET_NO == GNUNET_DISK_file_test (keyfile))
2347 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2348 "Unable to load zone key %s!\n", keyfile);
2349 GNUNET_free(keyfile);
2353 key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
2354 GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
2355 GNUNET_CRYPTO_short_hash(&pkey,
2356 sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
2358 zone = &local_gns_zone;
2359 GNUNET_CRYPTO_short_hash_to_enc (zone, &zonename);
2360 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2361 "Using zone: %s!\n", &zonename);
2362 GNUNET_CRYPTO_rsa_key_free(key);
2363 GNUNET_free(keyfile);
2369 * Loads the users local shorten zone key
2371 * @return GNUNET_YES on success
2374 load_local_shorten_key (const struct GNUNET_CONFIGURATION_Handle *cfg)
2377 struct GNUNET_CRYPTO_RsaPrivateKey *key = NULL;
2378 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pkey;
2379 struct GNUNET_CRYPTO_ShortHashCode *zone = NULL;
2380 struct GNUNET_CRYPTO_ShortHashAsciiEncoded zonename;
2382 if (GNUNET_NO == GNUNET_CONFIGURATION_get_value_yesno (cfg, "gns",
2383 "AUTO_IMPORT_PKEY"))
2388 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
2389 "AUTO_IMPORT_ZONEKEY",
2392 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2393 "Unable to load shorten key config value! (not fatal)\n");
2397 if (GNUNET_NO == GNUNET_DISK_file_test (keyfile))
2399 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2400 "Unable to load shorten key %s! (not fatal)\n", keyfile);
2401 GNUNET_free(keyfile);
2405 key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
2406 GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
2407 GNUNET_CRYPTO_short_hash(&pkey,
2408 sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
2409 &local_shorten_zone);
2410 zone = &local_gns_zone;
2411 GNUNET_CRYPTO_short_hash_to_enc (zone, &zonename);
2412 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2413 "Using shorten zone: %s!\n", &zonename);
2414 GNUNET_CRYPTO_rsa_key_free(key);
2415 GNUNET_free(keyfile);
2421 * Main function that will be run
2423 * @param cls closure
2424 * @param args remaining command-line arguments
2425 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
2426 * @param cfg configuration
2429 run (void *cls, char *const *args, const char *cfgfile,
2430 const struct GNUNET_CONFIGURATION_Handle *cfg)
2432 struct sockaddr_in sa;
2433 struct MhdHttpList *hd;
2434 struct sockaddr_un mhd_unix_sock_addr;
2436 char* proxy_sockfile;
2437 char* cafile_cfg = NULL;
2442 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
2445 cafile = cafile_opt;
2449 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns-proxy",
2453 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2454 "Unable to load proxy CA config value!\n");
2455 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2456 "No proxy CA provided!\n");
2459 cafile = cafile_cfg;
2462 gnutls_global_init ();
2464 gnutls_x509_crt_init (&proxy_ca.cert);
2465 gnutls_x509_privkey_init (&proxy_ca.key);
2467 load_cert_from_file (proxy_ca.cert, cafile);
2468 load_key_from_file (proxy_ca.key, cafile);
2470 GNUNET_free_non_null (cafile_cfg);
2472 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2473 "Loading Template\n");
2475 compile_regex (&re_dotplus, (char*) RE_A_HREF);
2477 gns_handle = GNUNET_GNS_connect (cfg);
2479 if (GNUNET_NO == load_local_zone_key (cfg))
2481 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2482 "Unable to load zone!\n");
2486 use_shorten = load_local_shorten_key (cfg);
2488 if (NULL == gns_handle)
2490 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2491 "Unable to connect to GNS!\n");
2495 memset (&sa, 0, sizeof (sa));
2496 sa.sin_family = AF_INET;
2497 sa.sin_port = htons (port);
2498 #if HAVE_SOCKADDR_IN_SIN_LEN
2499 sa.sin_len = sizeof (sa);
2502 lsock = GNUNET_NETWORK_socket_create (AF_INET,
2506 if ((NULL == lsock) ||
2508 GNUNET_NETWORK_socket_bind (lsock, (const struct sockaddr *) &sa,
2511 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2512 "Failed to create listen socket bound to `%s'",
2513 GNUNET_a2s ((const struct sockaddr *) &sa, sizeof (sa)));
2515 GNUNET_NETWORK_socket_close (lsock);
2519 if (GNUNET_OK != GNUNET_NETWORK_socket_listen (lsock, 5))
2521 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2522 "Failed to listen on socket bound to `%s'",
2523 GNUNET_a2s ((const struct sockaddr *) &sa, sizeof (sa)));
2527 ltask = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
2528 lsock, &do_accept, NULL);
2533 if (0 != curl_global_init (CURL_GLOBAL_WIN32))
2535 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2536 "cURL global init failed!\n");
2540 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2541 "Proxy listens on port %u\n",
2544 mhd_httpd_head = NULL;
2545 mhd_httpd_tail = NULL;
2546 total_mhd_connections = 0;
2548 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns-proxy",
2552 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2553 "Specify PROXY_UNIXPATH in gns-proxy config section!\n");
2557 mhd_unix_socket = GNUNET_NETWORK_socket_create (AF_UNIX,
2561 if (NULL == mhd_unix_socket)
2563 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2564 "Unable to create unix domain socket!\n");
2568 mhd_unix_sock_addr.sun_family = AF_UNIX;
2569 strcpy (mhd_unix_sock_addr.sun_path, proxy_sockfile);
2570 unlink (proxy_sockfile);
2571 len = strlen (proxy_sockfile) + sizeof(AF_UNIX);
2573 GNUNET_free (proxy_sockfile);
2575 if (GNUNET_OK != GNUNET_NETWORK_socket_bind (mhd_unix_socket,
2576 (struct sockaddr*)&mhd_unix_sock_addr,
2579 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2580 "Unable to bind unix domain socket!\n");
2584 if (GNUNET_OK != GNUNET_NETWORK_socket_listen (mhd_unix_socket,
2587 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2588 "Unable to listen on unix domain socket!\n");
2592 hd = GNUNET_malloc (sizeof (struct MhdHttpList));
2593 hd->is_ssl = GNUNET_NO;
2594 strcpy (hd->domain, "");
2595 httpd = MHD_start_daemon (MHD_USE_DEBUG, 4444, //Dummy port
2597 &create_response, hd,
2598 MHD_OPTION_LISTEN_SOCKET, GNUNET_NETWORK_get_fd (mhd_unix_socket),
2599 MHD_OPTION_CONNECTION_LIMIT, MHD_MAX_CONNECTIONS,
2600 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 16,
2601 MHD_OPTION_NOTIFY_COMPLETED,
2605 GNUNET_assert (httpd != NULL);
2607 hd->httpd_task = GNUNET_SCHEDULER_NO_TASK;
2609 GNUNET_CONTAINER_DLL_insert (mhd_httpd_head, mhd_httpd_tail, hd);
2613 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
2614 &do_shutdown, NULL);
2620 * The main function for gnunet-gns-proxy.
2622 * @param argc number of arguments from the command line
2623 * @param argv command line arguments
2624 * @return 0 ok, 1 on error
2627 main (int argc, char *const *argv)
2629 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
2631 gettext_noop ("listen on specified port"), 1,
2632 &GNUNET_GETOPT_set_string, &port},
2633 {'a', "authority", NULL,
2634 gettext_noop ("pem file to use as CA"), 1,
2635 &GNUNET_GETOPT_set_string, &cafile_opt},
2636 GNUNET_GETOPT_OPTION_END
2641 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
2645 GNUNET_log_setup ("gnunet-gns-proxy", "WARNING", NULL);
2648 GNUNET_PROGRAM_run (argc, argv, "gnunet-gns-proxy",
2649 _("GNUnet GNS proxy"),
2651 &run, NULL)) ? 0 : 1;
2652 GNUNET_free_non_null ((char*)argv);