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;
249 struct ProxySetCookieHeader *set_cookies_head;
252 struct ProxySetCookieHeader *set_cookies_tail;
254 /* connection status */
258 struct MHD_Connection *connection;
263 * Struct for set-cookies
265 struct ProxySetCookieHeader
268 struct ProxySetCookieHeader *next;
271 struct ProxySetCookieHeader *prev;
277 /* The port the proxy is running on (default 7777) */
278 static unsigned long port = GNUNET_GNS_PROXY_PORT;
280 /* The CA file (pem) to use for the proxy CA */
281 static char* cafile_opt;
283 /* The listen socket of the proxy */
284 static struct GNUNET_NETWORK_Handle *lsock;
286 /* The listen task ID */
287 GNUNET_SCHEDULER_TaskIdentifier ltask;
289 /* The cURL download task */
290 GNUNET_SCHEDULER_TaskIdentifier curl_download_task;
292 /* The non SSL httpd daemon handle */
293 static struct MHD_Daemon *httpd;
295 /* Number of current mhd connections */
296 static unsigned int total_mhd_connections;
298 /* The cURL multi handle */
299 static CURLM *curl_multi;
301 /* Handle to the GNS service */
302 static struct GNUNET_GNS_Handle *gns_handle;
304 /* DLL for ProxyCurlTasks */
305 static struct ProxyCurlTask *ctasks_head;
307 /* DLL for ProxyCurlTasks */
308 static struct ProxyCurlTask *ctasks_tail;
310 /* DLL for http daemons */
311 static struct MhdHttpList *mhd_httpd_head;
313 /* DLL for http daemons */
314 static struct MhdHttpList *mhd_httpd_tail;
316 /* Handle to the regex for dotplus (.+) replacement in HTML */
317 static regex_t re_dotplus;
319 /* The users local GNS zone hash */
320 static struct GNUNET_CRYPTO_ShortHashCode local_gns_zone;
322 /* The users local private zone */
323 static struct GNUNET_CRYPTO_ShortHashCode local_private_zone;
325 /* The users local shorten zone */
326 static struct GNUNET_CRYPTO_ShortHashCode local_shorten_zone;
328 /* The CA for SSL certificate generation */
329 static struct ProxyCA proxy_ca;
331 /* UNIX domain socket for mhd */
332 struct GNUNET_NETWORK_Handle *mhd_unix_socket;
334 /* Shorten zone private key */
335 struct GNUNET_CRYPTO_RsaPrivateKey *shorten_zonekey;
338 * Checks if name is in tld
340 * @param name the name to check
341 * @param tld the TLD to check for
342 * @return GNUNET_YES or GNUNET_NO
345 is_tld(const char* name, const char* tld)
349 if (strlen(name) <= strlen(tld))
354 offset = strlen(name)-strlen(tld);
355 if (strcmp (name+offset, tld) != 0)
357 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
358 "%s is not in .%s TLD\n", name, tld);
367 * Read HTTP request header field 'Host'
369 * @param cls buffer to write to
370 * @param kind value kind
371 * @param key field key
372 * @param value field value
373 * @return MHD_NO when Host found
376 con_val_iter (void *cls,
377 enum MHD_ValueKind kind,
381 char* buf = (char*)cls;
383 if (0 == strcmp ("Host", key))
393 * Check HTTP response header for mime
395 * @param buffer curl buffer
396 * @param size curl blocksize
397 * @param nmemb curl blocknumber
399 * @return size of read bytes
402 curl_check_hdr (void *buffer, size_t size, size_t nmemb, void *cls)
404 size_t bytes = size * nmemb;
405 struct ProxyCurlTask *ctask = cls;
406 int html_mime_len = strlen (HTML_HDR_CONTENT);
407 int cookie_hdr_len = strlen (MHD_HTTP_HEADER_SET_COOKIE);
408 char hdr_mime[html_mime_len+1];
409 char hdr_cookie[bytes+1];
410 //char hdr_cookie_gns[bytes+strlen (ctask->leho)+1];
413 if (html_mime_len <= bytes)
415 memcpy (hdr_mime, buffer, html_mime_len);
416 hdr_mime[html_mime_len] = '\0';
418 if (0 == strcmp (hdr_mime, HTML_HDR_CONTENT))
420 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
421 "Got HTML HTTP response header\n");
422 ctask->parse_content = GNUNET_YES;
426 if (cookie_hdr_len > bytes)
429 memcpy (hdr_cookie, buffer, bytes);
430 hdr_cookie[bytes] = '\0';
432 if (hdr_cookie[bytes-1] == '\n')
433 hdr_cookie[bytes-1] = '\0';
435 if (hdr_cookie[bytes-2] == '\r')
436 hdr_cookie[bytes-2] = '\0';
438 if (0 == memcmp (hdr_cookie,
439 MHD_HTTP_HEADER_SET_COOKIE,
442 //ndup = GNUNET_strdup (hdr_cookie);
443 //tok = strtok (ndup, ";");
445 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
446 "Got Set-Cookie HTTP header %s\n", hdr_cookie);
447 //pch = GNUNET_malloc (sizeof (struct ProxySetCookieHeader));
448 //len = strlen (hdr_cookie) - cookie_hdr_len - 1;
449 //pch->cookie = GNUNET_malloc (len + 1);
450 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
451 "Copying Set-Cookie data %s:\n", hdr_cookie+cookie_hdr_len+1);
452 //memset (pch->cookie, 0, len + 1);
453 //memcpy (pch->cookie, hdr_cookie+cookie_hdr_len+1, len);
454 //GNUNET_CONTAINER_DLL_insert (ctask->set_cookies_head,
455 // ctask->set_cookies_tail,
457 //pch = ctask->set_cookies_head;
458 //while (pch != NULL)
460 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
461 "MHD: adding cookie: %s\n",
462 hdr_cookie+cookie_hdr_len+1);
464 if (GNUNET_NO == MHD_add_response_header (ctask->response,
465 MHD_HTTP_HEADER_SET_COOKIE,
466 hdr_cookie+cookie_hdr_len+1))
468 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
469 "MHD: Error adding set-cookie header field %s\n",
470 hdr_cookie+cookie_hdr_len+1);
472 MHD_add_response_header (ctask->response,
473 MHD_HTTP_HEADER_SET_COOKIE,
474 "test=test; domain=homepage.gnunet; secure");
475 //GNUNET_free (pch->cookie);
476 //GNUNET_CONTAINER_DLL_remove (ctask->set_cookies_head,
477 // ctask->set_cookies_tail,
480 //pch = ctask->set_cookies_head;
490 * @param hd a http daemon list entry
493 run_httpd (struct MhdHttpList *hd);
505 * Task that simply runs MHD main loop
508 * @param tc task context
511 run_mhd (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
514 struct MhdHttpList *hd = cls;
516 //for (hd=mhd_httpd_head; hd != NULL; hd = hd->next)
517 MHD_run (hd->daemon);
522 * Process cURL download bits
524 * @param ptr buffer with data
525 * @param size size of a record
526 * @param nmemb number of records downloaded
528 * @return number of processed bytes
531 callback_download (void *ptr, size_t size, size_t nmemb, void *ctx)
533 const char *cbuf = ptr;
535 struct ProxyCurlTask *ctask = ctx;
538 if (ctask->con_status == MHD_NO)
540 MHD_queue_response (ctask->connection,
543 ctask->con_status = MHD_YES;
552 if (total > sizeof (ctask->buffer))
554 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
555 "CURL gave us too much data to handle (%d)!\n",
560 if (ctask->buf_status == BUF_WAIT_FOR_MHD)
562 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
563 "CURL: Waiting for MHD (%s)\n", ctask->url);
564 return CURL_WRITEFUNC_PAUSE;
568 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
569 "CURL: Copying to MHD (%s, %d)\n", ctask->url, total);
570 memcpy (ctask->buffer, cbuf, total);
571 ctask->bytes_in_buffer = total;
572 ctask->buffer_ptr = ctask->buffer;
574 ctask->buf_status = BUF_WAIT_FOR_MHD;
576 //GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
577 // "cURL chunk:\n%s\n", (char*)ctask->buffer);
578 //run_mhd (NULL, NULL);
579 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
584 * Ask cURL for the select sets and schedule download
587 curl_download_prepare ();
590 * Callback to free content
592 * @param cls content to free
593 * @param tc task context
596 mhd_content_free (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
598 struct ProxyCurlTask *ctask = cls;
600 if (NULL != ctask->headers)
601 curl_slist_free_all (ctask->headers);
603 if (NULL != ctask->headers)
604 curl_slist_free_all (ctask->resolver);
606 if (NULL != ctask->response)
607 MHD_destroy_response (ctask->response);
615 * Shorten result callback
617 * @param cls the proxycurltask
618 * @param short_name the shortened name (NULL on error)
621 process_shorten (void* cls, const char* short_name)
623 struct ProxyCurlTask *ctask = cls;
625 char tmp[strlen(ctask->pp_buf)]; //TODO length
627 if (NULL == short_name)
629 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
630 "MHD PP: Unable to shorten %s\n",
635 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
636 "MHD PP: Shorten %s -> %s\n",
640 sprintf (tmp, "<a href=\"http://%s", short_name);
641 strcpy (ctask->pp_buf, tmp);
643 ctask->pp_finished = GNUNET_YES;
645 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
650 * Callback for MHD response
653 * @param pos in buffer
655 * @param max space in buffer
656 * @return number of bytes written
659 mhd_content_cb (void *cls,
664 struct ProxyCurlTask *ctask = cls;
666 size_t bytes_to_copy;
669 regmatch_t m[RE_N_MATCHES];
671 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
672 "MHD: content cb %s\n", ctask->url);
674 if (ctask->download_successful &&
675 (ctask->buf_status == BUF_WAIT_FOR_CURL))
677 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
678 "MHD: sending response for %s\n", ctask->url);
679 ctask->download_in_progress = GNUNET_NO;
680 GNUNET_SCHEDULER_add_now (&mhd_content_free, ctask);
681 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
682 total_mhd_connections--;
683 return MHD_CONTENT_READER_END_OF_STREAM;
686 if (ctask->download_error &&
687 (ctask->buf_status == BUF_WAIT_FOR_CURL))
689 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
690 "MHD: sending error response\n");
691 ctask->download_in_progress = GNUNET_NO;
692 GNUNET_SCHEDULER_add_now (&mhd_content_free, ctask);
693 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
694 total_mhd_connections--;
695 return MHD_CONTENT_READER_END_WITH_ERROR;
698 if ( ctask->buf_status == BUF_WAIT_FOR_CURL )
701 bytes_to_copy = ctask->bytes_in_buffer;
703 if (ctask->parse_content == GNUNET_YES)
706 GNUNET_log ( GNUNET_ERROR_TYPE_DEBUG,
707 "MHD: We need to parse the HTML %s\n", ctask->buffer_ptr);
709 nomatch = regexec ( &re_dotplus, ctask->buffer_ptr, RE_N_MATCHES, m, 0);
713 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
714 "MHD RE: No match\n");
718 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
721 GNUNET_assert (m[1].rm_so != -1);
723 hostptr = ctask->buffer_ptr+m[1].rm_so;
727 bytes_to_copy = m[0].rm_so;
728 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
729 "Copying %d bytes.\n", m[0].rm_so);
735 if (ctask->is_postprocessing == GNUNET_YES)
739 if ( ctask->pp_finished == GNUNET_NO )
741 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
742 "MHD PP: Waiting for PP of %s\n", ctask->pp_buf);
746 ctask->is_postprocessing = GNUNET_NO;
748 ctask->bytes_in_buffer -= m[0].rm_eo;//(m[1].rm_eo-m[1].rm_so);
749 ctask->buffer_ptr += m[0].rm_eo;//(m[1].rm_eo-m[1].rm_so);
750 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
751 "Skipping next %d bytes in buffer\n", m[0].rm_eo);
753 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
755 if ( strlen (ctask->pp_buf) <= max )
757 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
758 "Copying postprocessed %s.\n", ctask->pp_buf);
759 memcpy ( buf, ctask->pp_buf, strlen (ctask->pp_buf) );
760 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
762 ctask->is_postprocessing = GNUNET_NO;
763 return strlen (ctask->pp_buf);
769 memset (ctask->pp_buf, 0, sizeof(ctask->pp_buf));
771 /* If .+ extend with authority */
772 if (*(ctask->buffer_ptr+m[1].rm_eo) == '+')
774 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
776 memcpy (ctask->pp_buf, hostptr, (m[1].rm_eo-m[1].rm_so));
777 strcpy ( ctask->pp_buf+strlen(ctask->pp_buf),
780 /* If .zkey simply copy the name */
783 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
785 memcpy (ctask->pp_buf, hostptr, (m[1].rm_eo-m[1].rm_so + strlen (GNUNET_GNS_TLD_ZKEY)));
788 ctask->is_postprocessing = GNUNET_YES;
789 ctask->pp_finished = GNUNET_NO;
791 GNUNET_GNS_shorten_zone (gns_handle,
804 if ( bytes_to_copy > max )
806 GNUNET_log ( GNUNET_ERROR_TYPE_DEBUG,
807 "MHD: buffer in response too small! (%s)\n",
809 memcpy ( buf, ctask->buffer_ptr, max);
810 ctask->bytes_in_buffer -= max;
811 ctask->buffer_ptr += max;
816 GNUNET_log ( GNUNET_ERROR_TYPE_DEBUG,
817 "MHD: copying %d bytes to mhd response at offset %d\n",
820 memcpy ( buf, ctask->buffer_ptr, bytes_to_copy );
821 copied = bytes_to_copy;
822 if (bytes_to_copy < ctask->bytes_in_buffer)
824 ctask->bytes_in_buffer -= bytes_to_copy;
825 ctask->buffer_ptr += bytes_to_copy;
829 ctask->bytes_in_buffer = 0;
830 ctask->buf_status = BUF_WAIT_FOR_CURL;
831 ctask->buffer_ptr = ctask->buffer;
832 if (NULL != ctask->curl)
833 curl_easy_pause (ctask->curl, CURLPAUSE_CONT);
834 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
838 GNUNET_SCHEDULER_add_now (&run_mhd, ctask->mhd);
846 * Task that is run when we are ready to receive more data
850 * @param tc task context
853 curl_task_download (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
856 * Ask cURL for the select sets and schedule download
859 curl_download_prepare ()
866 struct GNUNET_NETWORK_FDSet *grs;
867 struct GNUNET_NETWORK_FDSet *gws;
869 struct GNUNET_TIME_Relative rtime;
875 mret = curl_multi_fdset (curl_multi, &rs, &ws, &es, &max);
877 if (mret != CURLM_OK)
879 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
880 "%s failed at %s:%d: `%s'\n",
881 "curl_multi_fdset", __FILE__, __LINE__,
882 curl_multi_strerror (mret));
887 mret = curl_multi_timeout (curl_multi, &to);
888 rtime = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, to);
890 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
891 "cURL multi fds: max=%d timeout=%llu\n", max, to);
893 grs = GNUNET_NETWORK_fdset_create ();
894 gws = GNUNET_NETWORK_fdset_create ();
895 GNUNET_NETWORK_fdset_copy_native (grs, &rs, max + 1);
896 GNUNET_NETWORK_fdset_copy_native (gws, &ws, max + 1);
897 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
898 "Scheduling task cURL\n");
900 if (curl_download_task != GNUNET_SCHEDULER_NO_TASK)
901 GNUNET_SCHEDULER_cancel (curl_download_task);
904 GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
907 &curl_task_download, curl_multi);
908 GNUNET_NETWORK_fdset_destroy (gws);
909 GNUNET_NETWORK_fdset_destroy (grs);
915 * Task that is run when we are ready to receive more data
919 * @param tc task context
922 curl_task_download (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
928 struct ProxyCurlTask *ctask;
931 struct ProxyCurlTask *clean_head = NULL;
932 struct ProxyCurlTask *clean_tail = NULL;
934 curl_download_task = GNUNET_SCHEDULER_NO_TASK;
936 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
938 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
939 "Shutdown requested while trying to download\n");
943 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
951 mret = curl_multi_perform (curl_multi, &running);
953 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
954 "Running curl tasks: %d\n", running);
957 for (; ctask != NULL; ctask = ctask->next)
959 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
960 "CTask: %s\n", ctask->url);
964 if (num_ctasks != running)
966 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
967 "%d ctasks, %d curl running\n", num_ctasks, running);
973 msg = curl_multi_info_read (curl_multi, &msgnum);
974 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
975 "Messages left: %d\n", msgnum);
982 if ((msg->data.result != CURLE_OK) &&
983 (msg->data.result != CURLE_GOT_NOTHING))
985 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
986 "Download curl failed");
988 for (; ctask != NULL; ctask = ctask->next)
990 if (NULL == ctask->curl)
993 if (memcmp (msg->easy_handle, ctask->curl, sizeof (CURL)) != 0)
996 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
997 "Download curl failed for task %s: %s.\n",
999 curl_easy_strerror (msg->data.result));
1000 ctask->download_successful = GNUNET_NO;
1001 ctask->download_error = GNUNET_YES;
1002 //curl_multi_remove_handle (curl_multi, ctask->curl);
1003 //curl_easy_cleanup (ctask->curl);
1004 //ctask->curl = NULL;
1005 GNUNET_CONTAINER_DLL_remove (ctasks_head, ctasks_tail,
1007 GNUNET_CONTAINER_DLL_insert (clean_head, clean_tail, ctask);
1010 GNUNET_assert (ctask != NULL);
1014 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1015 "cURL download completed.\n");
1017 for (; ctask != NULL; ctask = ctask->next)
1019 if (NULL == ctask->curl)
1022 if (memcmp (msg->easy_handle, ctask->curl, sizeof (CURL)) != 0)
1025 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1026 "cURL task %s found.\n", ctask->url);
1027 ctask->download_successful = GNUNET_YES;
1028 //curl_multi_remove_handle (curl_multi, ctask->curl);
1029 //curl_easy_cleanup (ctask->curl);
1030 //ctask->curl = NULL;
1031 GNUNET_CONTAINER_DLL_remove (ctasks_head, ctasks_tail,
1033 GNUNET_CONTAINER_DLL_insert (clean_head, clean_tail, ctask);
1037 GNUNET_assert (ctask != NULL);
1039 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1040 "curl end %s\n", curl_easy_strerror(msg->data.result));
1046 } while (msgnum > 0);
1048 for (ctask=clean_head; ctask != NULL; ctask = ctask->next)
1050 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1051 "Removing cURL task %s.\n", ctask->url);
1052 curl_multi_remove_handle (curl_multi, ctask->curl);
1053 curl_easy_cleanup (ctask->curl);
1058 for (ctask=ctasks_head; ctask != NULL; ctask = ctask->next)
1063 if (num_ctasks != running)
1065 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1066 "%d ctasks, %d curl running\n", num_ctasks, running);
1069 GNUNET_assert ( num_ctasks == running );
1073 } while (mret == CURLM_CALL_MULTI_PERFORM);
1076 if (mret != CURLM_OK)
1078 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "%s failed at %s:%d: `%s'\n",
1079 "curl_multi_perform", __FILE__, __LINE__,
1080 curl_multi_strerror (mret));
1082 curl_download_prepare();
1086 * Process LEHO lookup
1088 * @param cls the ctask
1089 * @param rd_count number of records returned
1090 * @param rd record data
1093 process_leho_lookup (void *cls,
1095 const struct GNUNET_NAMESTORE_RecordData *rd)
1097 struct ProxyCurlTask *ctask = cls;
1098 char hosthdr[262]; //256 + "Host: "
1102 struct hostent *phost;
1104 char resolvename[512];
1107 ctask->headers = NULL;
1109 strcpy (ctask->leho, "");
1112 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1113 "No LEHO present!\n");
1115 for (i=0; i<rd_count; i++)
1117 if (rd[i].record_type != GNUNET_GNS_RECORD_LEHO)
1120 memcpy (ctask->leho, rd[i].data, rd[i].data_size);
1122 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1123 "Found LEHO %s for %s\n", ctask->leho, ctask->url);
1126 if (0 != strcmp (ctask->leho, ""))
1128 sprintf (hosthdr, "%s%s", "Host: ", ctask->leho);
1129 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1130 "New HTTP header value: %s\n", hosthdr);
1131 ctask->headers = curl_slist_append (ctask->headers, hosthdr);
1132 GNUNET_assert (NULL != ctask->headers);
1133 ret = curl_easy_setopt (ctask->curl, CURLOPT_HTTPHEADER, ctask->headers);
1134 if (CURLE_OK != ret)
1136 GNUNET_log(GNUNET_ERROR_TYPE_WARNING, "%s failed at %s:%d: `%s'\n",
1137 "curl_easy_setopt", __FILE__, __LINE__, curl_easy_strerror(ret));
1142 if (ctask->mhd->is_ssl)
1144 phost = (struct hostent*)gethostbyname (ctask->host);
1148 ssl_ip = inet_ntoa(*((struct in_addr*)(phost->h_addr)));
1149 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1150 "SSL target server: %s\n", ssl_ip);
1151 sprintf (resolvename, "%s:%d:%s", ctask->leho, HTTPS_PORT, ssl_ip);
1152 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1153 "Curl resolve: %s\n", resolvename);
1154 ctask->resolver = curl_slist_append ( ctask->resolver, resolvename);
1155 curl_easy_setopt (ctask->curl, CURLOPT_RESOLVE, ctask->resolver);
1156 sprintf (curlurl, "https://%s%s", ctask->leho, ctask->url);
1157 curl_easy_setopt (ctask->curl, CURLOPT_URL, curlurl);
1161 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1162 "gethostbyname failed for %s!\n", ctask->host);
1163 ctask->download_successful = GNUNET_NO;
1164 ctask->download_error = GNUNET_YES;
1169 if (CURLM_OK != (mret=curl_multi_add_handle (curl_multi, ctask->curl)))
1171 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1172 "%s failed at %s:%d: `%s'\n",
1173 "curl_multi_add_handle", __FILE__, __LINE__,
1174 curl_multi_strerror (mret));
1175 ctask->download_successful = GNUNET_NO;
1176 ctask->download_error = GNUNET_YES;
1179 GNUNET_CONTAINER_DLL_insert (ctasks_head, ctasks_tail, ctask);
1181 curl_download_prepare ();
1186 * Initialize download and trigger curl
1188 * @param cls the proxycurltask
1189 * @param auth_name the name of the authority (site of origin) of ctask->host
1193 process_get_authority (void *cls,
1194 const char* auth_name)
1196 struct ProxyCurlTask *ctask = cls;
1198 if (NULL == auth_name)
1200 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1201 "Get authority failed!\n");
1202 strcpy (ctask->authority, "");
1206 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1207 "Get authority yielded %s\n", auth_name);
1208 strcpy (ctask->authority, auth_name);
1211 GNUNET_GNS_lookup_zone (gns_handle,
1214 GNUNET_GNS_RECORD_LEHO,
1215 GNUNET_YES, //Only cached for performance
1217 &process_leho_lookup,
1222 * Main MHD callback for handling requests.
1225 * @param con MHD connection handle
1226 * @param url the url in the request
1227 * @param meth the HTTP method used ("GET", "PUT", etc.)
1228 * @param ver the HTTP version string (i.e. "HTTP/1.1")
1229 * @param upload_data the data being uploaded (excluding HEADERS,
1230 * for a POST that fits into memory and that is encoded
1231 * with a supported encoding, the POST data will NOT be
1232 * given in upload_data and is instead available as
1233 * part of MHD_get_connection_values; very large POST
1234 * data *will* be made available incrementally in
1236 * @param upload_data_size set initially to the size of the
1237 * upload_data provided; the method must update this
1238 * value to the number of bytes NOT processed;
1239 * @param con_cls pointer to location where we store the 'struct Request'
1240 * @return MHD_YES if the connection was handled successfully,
1241 * MHD_NO if the socket must be closed due to a serious
1242 * error while handling the request
1245 create_response (void *cls,
1246 struct MHD_Connection *con,
1250 const char *upload_data,
1251 size_t *upload_data_size,
1255 struct MhdHttpList* hd = cls;
1256 const char* page = "<html><head><title>gnoxy</title>"\
1257 "</head><body>cURL fail</body></html>";
1263 struct ProxyCurlTask *ctask;
1265 if (0 != strcmp (meth, "GET"))
1267 if (&dummy != *con_cls)
1273 if (0 != *upload_data_size)
1278 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1281 MHD_get_connection_values (con,
1283 &con_val_iter, host);
1287 ctask = GNUNET_malloc (sizeof (struct ProxyCurlTask));
1290 if (curl_multi == NULL)
1291 curl_multi = curl_multi_init ();
1293 ctask->curl = curl_easy_init();
1295 if ((ctask->curl == NULL) || (curl_multi == NULL))
1297 ctask->response = MHD_create_response_from_buffer (strlen (page),
1299 MHD_RESPMEM_PERSISTENT);
1300 ret = MHD_queue_response (con,
1303 MHD_destroy_response (ctask->response);
1304 GNUNET_free (ctask);
1310 ctask->headers = NULL;
1311 ctask->resolver = NULL;
1312 ctask->buffer_ptr = NULL;
1313 ctask->download_in_progress = GNUNET_YES;
1314 ctask->download_successful = GNUNET_NO;
1315 ctask->buf_status = BUF_WAIT_FOR_CURL;
1316 ctask->bytes_in_buffer = 0;
1317 ctask->parse_content = GNUNET_NO;
1318 ctask->connection = con;
1319 ctask->con_status = MHD_NO;
1321 curl_easy_setopt (ctask->curl, CURLOPT_HEADERFUNCTION, &curl_check_hdr);
1322 curl_easy_setopt (ctask->curl, CURLOPT_HEADERDATA, ctask);
1323 curl_easy_setopt (ctask->curl, CURLOPT_WRITEFUNCTION, &callback_download);
1324 curl_easy_setopt (ctask->curl, CURLOPT_WRITEDATA, ctask);
1325 curl_easy_setopt (ctask->curl, CURLOPT_FOLLOWLOCATION, 1);
1326 curl_easy_setopt (ctask->curl, CURLOPT_MAXREDIRS, 4);
1327 /* no need to abort if the above failed */
1328 if (GNUNET_NO == ctask->mhd->is_ssl)
1330 sprintf (curlurl, "http://%s%s", host, url);
1331 curl_easy_setopt (ctask->curl, CURLOPT_URL, curlurl);
1332 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1333 "Adding new curl task for %s\n", curlurl);
1335 strcpy (ctask->host, host);
1336 strcpy (ctask->url, url);
1338 //curl_easy_setopt (ctask->curl, CURLOPT_URL, curlurl);
1339 curl_easy_setopt (ctask->curl, CURLOPT_FAILONERROR, 1);
1340 curl_easy_setopt (ctask->curl, CURLOPT_CONNECTTIMEOUT, 600L);
1341 curl_easy_setopt (ctask->curl, CURLOPT_TIMEOUT, 600L);
1343 GNUNET_GNS_get_authority (gns_handle,
1345 &process_get_authority,
1347 //download_prepare (ctask);
1348 //curl_download_prepare ();
1350 ctask->response = MHD_create_response_from_callback (MHD_SIZE_UNKNOWN,
1355 //ret = MHD_queue_response (con, MHD_HTTP_OK, ctask->response);
1357 //MHD_destroy_response (response);
1364 * Task run whenever HTTP server operations are pending.
1367 * @param tc sched context
1370 do_httpd (void *cls,
1371 const struct GNUNET_SCHEDULER_TaskContext *tc);
1380 struct MhdHttpList *hd;
1382 for (hd=mhd_httpd_head; hd != NULL; hd = hd->next)
1390 * @param hd the daemon to run
1393 run_httpd (struct MhdHttpList *hd)
1398 struct GNUNET_NETWORK_FDSet *wrs;
1399 struct GNUNET_NETWORK_FDSet *wws;
1400 struct GNUNET_NETWORK_FDSet *wes;
1403 unsigned MHD_LONG_LONG timeout;
1404 struct GNUNET_TIME_Relative tv;
1409 wrs = GNUNET_NETWORK_fdset_create ();
1410 wes = GNUNET_NETWORK_fdset_create ();
1411 wws = GNUNET_NETWORK_fdset_create ();
1413 GNUNET_assert (MHD_YES == MHD_get_fdset (hd->daemon, &rs, &ws, &es, &max));
1416 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1417 "MHD fds: max=%d\n", max);
1419 haveto = MHD_get_timeout (hd->daemon, &timeout);
1421 if (haveto == MHD_YES)
1422 tv.rel_value = (uint64_t) timeout;
1424 tv = GNUNET_TIME_UNIT_FOREVER_REL;
1425 GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max + 1);
1426 GNUNET_NETWORK_fdset_copy_native (wws, &ws, max + 1);
1427 GNUNET_NETWORK_fdset_copy_native (wes, &es, max + 1);
1429 if (hd->httpd_task != GNUNET_SCHEDULER_NO_TASK)
1430 GNUNET_SCHEDULER_cancel (hd->httpd_task);
1432 GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_HIGH,
1435 GNUNET_NETWORK_fdset_destroy (wrs);
1436 GNUNET_NETWORK_fdset_destroy (wws);
1437 GNUNET_NETWORK_fdset_destroy (wes);
1442 * Task run whenever HTTP server operations are pending.
1445 * @param tc sched context
1448 do_httpd (void *cls,
1449 const struct GNUNET_SCHEDULER_TaskContext *tc)
1451 struct MhdHttpList *hd = cls;
1453 hd->httpd_task = GNUNET_SCHEDULER_NO_TASK;
1455 MHD_run (hd->daemon);
1461 * Read data from socket
1463 * @param cls the closure
1464 * @param tc scheduler context
1467 do_read (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
1470 * Read from remote end
1472 * @param cls closure
1473 * @param tc scheduler context
1476 do_read_remote (void* cls, const struct GNUNET_SCHEDULER_TaskContext *tc);
1479 * Write data to remote socket
1481 * @param cls the closure
1482 * @param tc scheduler context
1485 do_write_remote (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1487 struct Socks5Request *s5r = cls;
1490 s5r->fwdwtask = GNUNET_SCHEDULER_NO_TASK;
1492 if ((NULL != tc->read_ready) &&
1493 (GNUNET_NETWORK_fdset_isset (tc->write_ready, s5r->remote_sock)) &&
1494 ((len = GNUNET_NETWORK_socket_send (s5r->remote_sock, s5r->rbuf,
1497 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1498 "Successfully sent %d bytes to remote socket\n",
1503 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "write remote");
1505 if (s5r->rtask != GNUNET_SCHEDULER_NO_TASK)
1506 GNUNET_SCHEDULER_cancel (s5r->rtask);
1507 if (s5r->wtask != GNUNET_SCHEDULER_NO_TASK)
1508 GNUNET_SCHEDULER_cancel (s5r->wtask);
1509 if (s5r->fwdrtask != GNUNET_SCHEDULER_NO_TASK)
1510 GNUNET_SCHEDULER_cancel (s5r->fwdrtask);
1511 GNUNET_NETWORK_socket_close (s5r->remote_sock);
1512 GNUNET_NETWORK_socket_close (s5r->sock);
1518 GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
1525 * Clean up s5r handles
1527 * @param s5r the handle to destroy
1530 cleanup_s5r (struct Socks5Request *s5r)
1532 if (s5r->rtask != GNUNET_SCHEDULER_NO_TASK)
1533 GNUNET_SCHEDULER_cancel (s5r->rtask);
1534 if (s5r->fwdwtask != GNUNET_SCHEDULER_NO_TASK)
1535 GNUNET_SCHEDULER_cancel (s5r->fwdwtask);
1536 if (s5r->fwdrtask != GNUNET_SCHEDULER_NO_TASK)
1537 GNUNET_SCHEDULER_cancel (s5r->fwdrtask);
1539 if (NULL != s5r->remote_sock)
1540 GNUNET_NETWORK_socket_close (s5r->remote_sock);
1541 if ((NULL != s5r->sock) && (s5r->cleanup_sock == GNUNET_YES))
1542 GNUNET_NETWORK_socket_close (s5r->sock);
1548 * Write data to socket
1550 * @param cls the closure
1551 * @param tc scheduler context
1554 do_write (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1556 struct Socks5Request *s5r = cls;
1559 s5r->wtask = GNUNET_SCHEDULER_NO_TASK;
1561 if ((NULL != tc->read_ready) &&
1562 (GNUNET_NETWORK_fdset_isset (tc->write_ready, s5r->sock)) &&
1563 ((len = GNUNET_NETWORK_socket_send (s5r->sock, s5r->wbuf,
1566 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1567 "Successfully sent %d bytes to socket\n",
1573 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "write");
1574 s5r->cleanup = GNUNET_YES;
1575 s5r->cleanup_sock = GNUNET_YES;
1581 if (GNUNET_YES == s5r->cleanup)
1587 if ((s5r->state == SOCKS5_DATA_TRANSFER) &&
1588 (s5r->fwdrtask == GNUNET_SCHEDULER_NO_TASK))
1590 GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
1592 &do_read_remote, s5r);
1596 * Read from remote end
1598 * @param cls closure
1599 * @param tc scheduler context
1602 do_read_remote (void* cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1604 struct Socks5Request *s5r = cls;
1606 s5r->fwdrtask = GNUNET_SCHEDULER_NO_TASK;
1609 if ((NULL != tc->write_ready) &&
1610 (GNUNET_NETWORK_fdset_isset (tc->read_ready, s5r->remote_sock)) &&
1611 (s5r->wbuf_len = GNUNET_NETWORK_socket_recv (s5r->remote_sock, s5r->wbuf,
1612 sizeof (s5r->wbuf))))
1614 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1615 "Successfully read %d bytes from remote socket\n",
1620 if (s5r->wbuf_len == 0)
1621 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1622 "0 bytes received from remote... graceful shutdown!\n");
1623 if (s5r->fwdwtask != GNUNET_SCHEDULER_NO_TASK)
1624 GNUNET_SCHEDULER_cancel (s5r->fwdwtask);
1625 if (s5r->rtask != GNUNET_SCHEDULER_NO_TASK)
1626 GNUNET_SCHEDULER_cancel (s5r->rtask);
1628 GNUNET_NETWORK_socket_close (s5r->remote_sock);
1629 s5r->remote_sock = NULL;
1630 GNUNET_NETWORK_socket_close (s5r->sock);
1636 s5r->wtask = GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
1644 * Adds a socket to MHD
1646 * @param h the handle to the socket to add
1647 * @param daemon the daemon to add the fd to
1648 * @return whatever MHD_add_connection returns
1651 add_handle_to_mhd (struct GNUNET_NETWORK_Handle *h, struct MHD_Daemon *daemon)
1654 struct sockaddr *addr;
1657 fd = dup (GNUNET_NETWORK_get_fd (h));
1658 addr = GNUNET_NETWORK_get_addr (h);
1659 len = GNUNET_NETWORK_get_addrlen (h);
1661 return MHD_add_connection (daemon, fd, addr, len);
1665 * Calculate size of file
1667 * @param filename name of file
1668 * @return filesize or 0 on error
1671 get_file_size (const char* filename)
1675 fp = fopen (filename, "rb");
1680 if ((0 != fseek (fp, 0, SEEK_END)) || (-1 == (size = ftell (fp))))
1692 * Read file in filename
1694 * @param filename file to read
1695 * @param size pointer where filesize is stored
1699 load_file (const char* filename, unsigned int* size)
1704 *size = get_file_size (filename);
1708 fp = fopen (filename, "rb");
1712 buffer = GNUNET_malloc (*size);
1719 if (*size != fread (buffer, 1, *size, fp))
1721 GNUNET_free (buffer);
1730 * Load PEM key from file
1732 * @param key where to store the data
1733 * @param keyfile path to the PEM file
1736 load_key_from_file (gnutls_x509_privkey_t key, char* keyfile)
1738 gnutls_datum_t key_data;
1739 key_data.data = NULL;
1742 key_data.data = (unsigned char*)load_file (keyfile, &key_data.size);
1744 ret = gnutls_x509_privkey_import (key, &key_data,
1745 GNUTLS_X509_FMT_PEM);
1747 if (GNUTLS_E_SUCCESS != ret)
1749 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1750 "Unable to import private key %s(ret=%d)\n", key_data.data, ret);
1754 GNUNET_free (key_data.data);
1758 * Load cert from file
1760 * @param crt struct to store data in
1761 * @param certfile path to pem file
1764 load_cert_from_file (gnutls_x509_crt_t crt, char* certfile)
1766 gnutls_datum_t cert_data;
1767 cert_data.data = NULL;
1770 cert_data.data = (unsigned char*)load_file (certfile, &cert_data.size);
1772 ret = gnutls_x509_crt_import (crt, &cert_data,
1773 GNUTLS_X509_FMT_PEM);
1774 if (GNUTLS_E_SUCCESS != ret)
1776 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1777 "Unable to import certificate %s(ret=%d)\n", certfile, ret);
1781 GNUNET_free (cert_data.data);
1787 * Generate new certificate for specific name
1789 * @param name the subject name to generate a cert for
1790 * @return a struct holding the PEM data
1792 static struct ProxyGNSCertificate *
1793 generate_gns_certificate (const char *name)
1797 unsigned int serial;
1798 size_t key_buf_size;
1799 size_t cert_buf_size;
1800 gnutls_x509_crt_t request;
1804 ret = gnutls_x509_crt_init (&request);
1806 if (GNUTLS_E_SUCCESS != ret)
1811 ret = gnutls_x509_crt_set_key (request, proxy_ca.key);
1813 if (GNUTLS_E_SUCCESS != ret)
1818 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Generating cert\n");
1820 struct ProxyGNSCertificate *pgc =
1821 GNUNET_malloc (sizeof (struct ProxyGNSCertificate));
1823 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Adding DNs\n");
1825 gnutls_x509_crt_set_dn_by_oid (request, GNUTLS_OID_X520_COUNTRY_NAME,
1828 gnutls_x509_crt_set_dn_by_oid (request, GNUTLS_OID_X520_ORGANIZATION_NAME,
1831 gnutls_x509_crt_set_dn_by_oid (request, GNUTLS_OID_X520_COMMON_NAME,
1832 0, name, strlen (name));
1834 ret = gnutls_x509_crt_set_version (request, 3);
1836 ret = gnutls_rnd (GNUTLS_RND_NONCE, &serial, sizeof (serial));
1838 etime = time (NULL);
1839 tm_data = localtime (&etime);
1842 ret = gnutls_x509_crt_set_serial (request,
1846 ret = gnutls_x509_crt_set_activation_time (request,
1849 etime = mktime (tm_data);
1856 ret = gnutls_x509_crt_set_expiration_time (request,
1858 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Signing...\n");
1860 ret = gnutls_x509_crt_sign (request, proxy_ca.cert, proxy_ca.key);
1862 key_buf_size = sizeof (pgc->key);
1863 cert_buf_size = sizeof (pgc->cert);
1865 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Exporting certificate...\n");
1867 gnutls_x509_crt_export (request, GNUTLS_X509_FMT_PEM,
1868 pgc->cert, &cert_buf_size);
1870 gnutls_x509_privkey_export (proxy_ca.key, GNUTLS_X509_FMT_PEM,
1871 pgc->key, &key_buf_size);
1874 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Cleaning up\n");
1875 gnutls_x509_crt_deinit (request);
1883 * Accept policy for mhdaemons
1886 * @param addr the sockaddr
1887 * @param addrlen the sockaddr length
1888 * @return MHD_NO if sockaddr is wrong or #conns too high
1891 accept_cb (void* cls, const struct sockaddr *addr, socklen_t addrlen)
1893 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1894 "In MHD accept policy cb\n");
1898 if (addr->sa_family == AF_UNIX)
1902 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1903 "Connection accepted\n");
1910 * Adds a socket to an SSL MHD instance
1911 * It is important the the domain name is
1912 * correct. In most cases we need to start a new daemon
1914 * @param h the handle to add to a daemon
1915 * @param domain the domain the ssl daemon has to serve
1916 * @return MHD_YES on success
1919 add_handle_to_ssl_mhd (struct GNUNET_NETWORK_Handle *h, char* domain)
1921 struct MhdHttpList *hd = NULL;
1922 struct ProxyGNSCertificate *pgc;
1923 struct NetworkHandleList *nh;
1925 for (hd = mhd_httpd_head; hd != NULL; hd = hd->next)
1927 if (0 == strcmp (hd->domain, domain))
1934 pgc = generate_gns_certificate (domain);
1936 hd = GNUNET_malloc (sizeof (struct MhdHttpList));
1937 hd->is_ssl = GNUNET_YES;
1938 strcpy (hd->domain, domain);
1939 hd->proxy_cert = pgc;
1942 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1943 "No previous SSL instance found... starting new one for %s\n",
1946 hd->daemon = MHD_start_daemon (MHD_USE_DEBUG | MHD_USE_SSL, 4444,
1948 &create_response, hd,
1949 MHD_OPTION_LISTEN_SOCKET, GNUNET_NETWORK_get_fd (mhd_unix_socket),
1950 MHD_OPTION_CONNECTION_LIMIT, MHD_MAX_CONNECTIONS,
1951 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 16,
1952 MHD_OPTION_NOTIFY_COMPLETED,
1954 MHD_OPTION_HTTPS_MEM_KEY, pgc->key,
1955 MHD_OPTION_HTTPS_MEM_CERT, pgc->cert,
1958 GNUNET_assert (hd->daemon != NULL);
1959 hd->httpd_task = GNUNET_SCHEDULER_NO_TASK;
1961 GNUNET_CONTAINER_DLL_insert (mhd_httpd_head, mhd_httpd_tail, hd);
1964 nh = GNUNET_malloc (sizeof (struct NetworkHandleList));
1967 GNUNET_CONTAINER_DLL_insert (hd->socket_handles_head,
1968 hd->socket_handles_tail,
1971 return add_handle_to_mhd (h, hd->daemon);
1977 * Read data from incoming connection
1979 * @param cls the closure
1980 * @param tc the scheduler context
1983 do_read (void* cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
1985 struct Socks5Request *s5r = cls;
1986 struct socks5_client_hello *c_hello;
1987 struct socks5_server_hello *s_hello;
1988 struct socks5_client_request *c_req;
1989 struct socks5_server_response *s_resp;
1995 struct hostent *phost;
1997 struct sockaddr_in remote_addr;
1998 struct in_addr *r_sin_addr;
2000 struct NetworkHandleList *nh;
2002 s5r->rtask = GNUNET_SCHEDULER_NO_TASK;
2004 if ((NULL != tc->write_ready) &&
2005 (GNUNET_NETWORK_fdset_isset (tc->read_ready, s5r->sock)) &&
2006 (s5r->rbuf_len = GNUNET_NETWORK_socket_recv (s5r->sock, s5r->rbuf,
2007 sizeof (s5r->rbuf))))
2009 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2010 "Successfully read %d bytes from socket\n",
2015 if (s5r->rbuf_len != 0)
2016 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "read");
2018 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "client disco!\n");
2020 if (s5r->fwdrtask != GNUNET_SCHEDULER_NO_TASK)
2021 GNUNET_SCHEDULER_cancel (s5r->fwdrtask);
2022 if (s5r->wtask != GNUNET_SCHEDULER_NO_TASK)
2023 GNUNET_SCHEDULER_cancel (s5r->wtask);
2024 if (s5r->fwdwtask != GNUNET_SCHEDULER_NO_TASK)
2025 GNUNET_SCHEDULER_cancel (s5r->fwdwtask);
2026 GNUNET_NETWORK_socket_close (s5r->remote_sock);
2027 GNUNET_NETWORK_socket_close (s5r->sock);
2032 if (s5r->state == SOCKS5_INIT)
2034 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2036 c_hello = (struct socks5_client_hello*)&s5r->rbuf;
2038 GNUNET_assert (c_hello->version == SOCKS_VERSION_5);
2040 s_hello = (struct socks5_server_hello*)&s5r->wbuf;
2041 s5r->wbuf_len = sizeof( struct socks5_server_hello );
2043 s_hello->version = c_hello->version;
2044 s_hello->auth_method = SOCKS_AUTH_NONE;
2046 /* Write response to client */
2047 s5r->wtask = GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
2051 s5r->rtask = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
2055 s5r->state = SOCKS5_REQUEST;
2059 if (s5r->state == SOCKS5_REQUEST)
2061 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2062 "Processing SOCKS5 request\n");
2063 c_req = (struct socks5_client_request*)&s5r->rbuf;
2064 s_resp = (struct socks5_server_response*)&s5r->wbuf;
2065 //Only 10byte for ipv4 response!
2066 s5r->wbuf_len = 10;//sizeof (struct socks5_server_response);
2068 GNUNET_assert (c_req->addr_type == 3);
2070 dom_len = *((uint8_t*)(&(c_req->addr_type) + 1));
2071 memset(domain, 0, sizeof(domain));
2072 strncpy(domain, (char*)(&(c_req->addr_type) + 2), dom_len);
2073 req_port = *((uint16_t*)(&(c_req->addr_type) + 2 + dom_len));
2075 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2076 "Requested connection is %s:%d\n",
2080 if (is_tld (domain, GNUNET_GNS_TLD) ||
2081 is_tld (domain, GNUNET_GNS_TLD_ZKEY))
2083 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2084 "Requested connection is gnunet tld\n",
2088 if (ntohs(req_port) == HTTPS_PORT)
2090 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2091 "Requested connection is HTTPS\n");
2092 ret = add_handle_to_ssl_mhd ( s5r->sock, domain );
2094 else if (NULL != httpd)
2096 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2097 "Requested connection is HTTP\n");
2098 nh = GNUNET_malloc (sizeof (struct NetworkHandleList));
2101 GNUNET_CONTAINER_DLL_insert (mhd_httpd_head->socket_handles_head,
2102 mhd_httpd_head->socket_handles_tail,
2105 ret = add_handle_to_mhd ( s5r->sock, httpd );
2110 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2111 _("Failed to start HTTP server\n"));
2112 s_resp->version = 0x05;
2113 s_resp->reply = 0x01;
2114 s5r->cleanup = GNUNET_YES;
2115 s5r->cleanup_sock = GNUNET_YES;
2117 GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
2123 /* Signal success */
2124 s_resp->version = 0x05;
2125 s_resp->reply = 0x00;
2126 s_resp->reserved = 0x00;
2127 s_resp->addr_type = 0x01;
2129 s5r->cleanup = GNUNET_YES;
2130 s5r->cleanup_sock = GNUNET_NO;
2132 GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
2140 phost = (struct hostent*)gethostbyname (domain);
2143 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2144 "Resolve %s error!\n", domain );
2145 s_resp->version = 0x05;
2146 s_resp->reply = 0x01;
2147 s5r->cleanup = GNUNET_YES;
2148 s5r->cleanup_sock = GNUNET_YES;
2150 GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
2156 s5r->remote_sock = GNUNET_NETWORK_socket_create (AF_INET,
2159 r_sin_addr = (struct in_addr*)(phost->h_addr);
2160 remote_ip = r_sin_addr->s_addr;
2161 memset(&remote_addr, 0, sizeof(remote_addr));
2162 remote_addr.sin_family = AF_INET;
2163 #if HAVE_SOCKADDR_IN_SIN_LEN
2164 remote_addr.sin_len = sizeof (remote_addr);
2166 remote_addr.sin_addr.s_addr = remote_ip;
2167 remote_addr.sin_port = req_port;
2169 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2170 "target server: %s:%u\n", inet_ntoa(remote_addr.sin_addr),
2174 GNUNET_NETWORK_socket_connect ( s5r->remote_sock,
2175 (const struct sockaddr*)&remote_addr,
2176 sizeof (remote_addr)))
2177 && (errno != EINPROGRESS))
2179 GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING, "connect");
2180 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2181 "socket request error...\n");
2182 s_resp->version = 0x05;
2183 s_resp->reply = 0x01;
2185 GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
2192 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2193 "new remote connection\n");
2195 s_resp->version = 0x05;
2196 s_resp->reply = 0x00;
2197 s_resp->reserved = 0x00;
2198 s_resp->addr_type = 0x01;
2200 s5r->state = SOCKS5_DATA_TRANSFER;
2203 GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
2207 GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
2215 if (s5r->state == SOCKS5_DATA_TRANSFER)
2217 if ((s5r->remote_sock == NULL) || (s5r->rbuf_len == 0))
2219 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2220 "Closing connection to client\n");
2221 if (s5r->rtask != GNUNET_SCHEDULER_NO_TASK)
2222 GNUNET_SCHEDULER_cancel (s5r->rtask);
2223 if (s5r->fwdwtask != GNUNET_SCHEDULER_NO_TASK)
2224 GNUNET_SCHEDULER_cancel (s5r->fwdwtask);
2225 if (s5r->fwdrtask != GNUNET_SCHEDULER_NO_TASK)
2226 GNUNET_SCHEDULER_cancel (s5r->fwdrtask);
2227 if (s5r->fwdrtask != GNUNET_SCHEDULER_NO_TASK)
2228 GNUNET_SCHEDULER_cancel (s5r->fwdrtask);
2230 if (s5r->remote_sock != NULL)
2231 GNUNET_NETWORK_socket_close (s5r->remote_sock);
2232 GNUNET_NETWORK_socket_close (s5r->sock);
2237 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2238 "forwarding %d bytes from client\n", s5r->rbuf_len);
2241 GNUNET_SCHEDULER_add_write_net (GNUNET_TIME_UNIT_FOREVER_REL,
2243 &do_write_remote, s5r);
2245 if (s5r->fwdrtask == GNUNET_SCHEDULER_NO_TASK)
2248 GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
2250 &do_read_remote, s5r);
2256 //GNUNET_CONTAINER_DLL_remove (s5conns.head, s5conns.tail, s5r);
2262 * Accept new incoming connections
2264 * @param cls the closure
2265 * @param tc the scheduler context
2268 do_accept (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
2270 struct GNUNET_NETWORK_Handle *s;
2271 struct Socks5Request *s5r;
2273 ltask = GNUNET_SCHEDULER_NO_TASK;
2274 if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
2277 ltask = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
2281 s = GNUNET_NETWORK_socket_accept (lsock, NULL, NULL);
2285 GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR, "accept");
2289 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2290 "Got an inbound connection, waiting for data\n");
2292 s5r = GNUNET_malloc (sizeof (struct Socks5Request));
2294 s5r->state = SOCKS5_INIT;
2295 s5r->wtask = GNUNET_SCHEDULER_NO_TASK;
2296 s5r->fwdwtask = GNUNET_SCHEDULER_NO_TASK;
2297 s5r->fwdrtask = GNUNET_SCHEDULER_NO_TASK;
2298 s5r->rtask = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
2301 //GNUNET_CONTAINER_DLL_insert (s5conns.head, s5conns.tail, s5r);
2306 * Task run on shutdown
2308 * @param cls closure
2309 * @param tc task context
2312 do_shutdown (void *cls,
2313 const struct GNUNET_SCHEDULER_TaskContext *tc)
2316 struct MhdHttpList *hd;
2317 struct MhdHttpList *tmp_hd;
2318 struct NetworkHandleList *nh;
2319 struct NetworkHandleList *tmp_nh;
2320 struct ProxyCurlTask *ctask;
2321 struct ProxyCurlTask *ctask_tmp;
2323 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
2324 "Shutting down...\n");
2326 gnutls_global_deinit ();
2328 if (GNUNET_SCHEDULER_NO_TASK != curl_download_task)
2330 GNUNET_SCHEDULER_cancel (curl_download_task);
2331 curl_download_task = GNUNET_SCHEDULER_NO_TASK;
2334 for (hd = mhd_httpd_head; hd != NULL; hd = tmp_hd)
2338 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2339 "Stopping daemon\n");
2341 if (GNUNET_SCHEDULER_NO_TASK != hd->httpd_task)
2343 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2344 "Stopping select task %d\n",
2346 GNUNET_SCHEDULER_cancel (hd->httpd_task);
2347 hd->httpd_task = GNUNET_SCHEDULER_NO_TASK;
2350 if (NULL != hd->daemon)
2352 MHD_stop_daemon (hd->daemon);
2356 for (nh = hd->socket_handles_head; nh != NULL; nh = tmp_nh)
2360 GNUNET_NETWORK_socket_close (nh->h);
2365 if (NULL != hd->proxy_cert)
2367 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2368 "Free certificate\n");
2369 GNUNET_free (hd->proxy_cert);
2375 for (ctask=ctasks_head; ctask != NULL; ctask=ctask_tmp)
2377 ctask_tmp = ctask->next;
2379 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2380 "Cleaning up cURL task\n");
2382 if (ctask->curl != NULL)
2383 curl_easy_cleanup (ctask->curl);
2385 if (NULL != ctask->headers)
2386 curl_slist_free_all (ctask->headers);
2387 if (NULL != ctask->resolver)
2388 curl_slist_free_all (ctask->resolver);
2390 if (NULL != ctask->response)
2391 MHD_destroy_response (ctask->response);
2394 GNUNET_free (ctask);
2397 GNUNET_GNS_disconnect (gns_handle);
2402 * Compiles a regex for us
2404 * @param re ptr to re struct
2405 * @param rt the expression to compile
2406 * @return 0 on success
2409 compile_regex (regex_t *re, const char* rt)
2414 status = regcomp (re, rt, REG_EXTENDED|REG_NEWLINE);
2417 regerror (status, re, err, 1024);
2418 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2419 "Regex error compiling '%s': %s\n", rt, err);
2427 * Loads the users local zone key
2429 * @return GNUNET_YES on success
2432 load_local_zone_key (const struct GNUNET_CONFIGURATION_Handle *cfg)
2435 struct GNUNET_CRYPTO_RsaPrivateKey *key = NULL;
2436 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pkey;
2437 struct GNUNET_CRYPTO_ShortHashCode *zone = NULL;
2438 struct GNUNET_CRYPTO_ShortHashAsciiEncoded zonename;
2440 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
2441 "ZONEKEY", &keyfile))
2443 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2444 "Unable to load zone key config value!\n");
2448 if (GNUNET_NO == GNUNET_DISK_file_test (keyfile))
2450 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2451 "Unable to load zone key %s!\n", keyfile);
2452 GNUNET_free(keyfile);
2456 key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
2457 GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
2458 GNUNET_CRYPTO_short_hash(&pkey,
2459 sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
2461 zone = &local_gns_zone;
2462 GNUNET_CRYPTO_short_hash_to_enc (zone, &zonename);
2463 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2464 "Using zone: %s!\n", &zonename);
2465 GNUNET_CRYPTO_rsa_key_free(key);
2466 GNUNET_free(keyfile);
2468 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
2469 "PRIVATE_ZONEKEY", &keyfile))
2471 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2472 "Unable to load private zone key config value!\n");
2476 if (GNUNET_NO == GNUNET_DISK_file_test (keyfile))
2478 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2479 "Unable to load private zone key %s!\n", keyfile);
2480 GNUNET_free(keyfile);
2484 key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
2485 GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
2486 GNUNET_CRYPTO_short_hash(&pkey,
2487 sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
2488 &local_private_zone);
2489 GNUNET_CRYPTO_short_hash_to_enc (zone, &zonename);
2490 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2491 "Using private zone: %s!\n", &zonename);
2492 GNUNET_CRYPTO_rsa_key_free(key);
2493 GNUNET_free(keyfile);
2495 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
2496 "SHORTEN_ZONEKEY", &keyfile))
2498 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2499 "Unable to load shorten zone key config value!\n");
2503 if (GNUNET_NO == GNUNET_DISK_file_test (keyfile))
2505 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2506 "Unable to load shorten zone key %s!\n", keyfile);
2507 GNUNET_free(keyfile);
2511 key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
2512 GNUNET_CRYPTO_rsa_key_get_public (key, &pkey);
2513 GNUNET_CRYPTO_short_hash(&pkey,
2514 sizeof(struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded),
2515 &local_shorten_zone);
2516 GNUNET_CRYPTO_short_hash_to_enc (zone, &zonename);
2517 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2518 "Using shorten zone: %s!\n", &zonename);
2519 GNUNET_CRYPTO_rsa_key_free(key);
2520 GNUNET_free(keyfile);
2526 * Main function that will be run
2528 * @param cls closure
2529 * @param args remaining command-line arguments
2530 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
2531 * @param cfg configuration
2534 run (void *cls, char *const *args, const char *cfgfile,
2535 const struct GNUNET_CONFIGURATION_Handle *cfg)
2537 struct sockaddr_in sa;
2538 struct MhdHttpList *hd;
2539 struct sockaddr_un mhd_unix_sock_addr;
2541 char* proxy_sockfile;
2542 char* cafile_cfg = NULL;
2547 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
2550 cafile = cafile_opt;
2554 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns-proxy",
2558 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2559 "Unable to load proxy CA config value!\n");
2560 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2561 "No proxy CA provided!\n");
2564 cafile = cafile_cfg;
2567 gnutls_global_init ();
2569 gnutls_x509_crt_init (&proxy_ca.cert);
2570 gnutls_x509_privkey_init (&proxy_ca.key);
2572 load_cert_from_file (proxy_ca.cert, cafile);
2573 load_key_from_file (proxy_ca.key, cafile);
2575 GNUNET_free_non_null (cafile_cfg);
2577 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2578 "Loading Template\n");
2580 compile_regex (&re_dotplus, (char*) RE_A_HREF);
2582 gns_handle = GNUNET_GNS_connect (cfg);
2584 if (GNUNET_NO == load_local_zone_key (cfg))
2586 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2587 "Unable to load zone!\n");
2591 if (NULL == gns_handle)
2593 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2594 "Unable to connect to GNS!\n");
2598 memset (&sa, 0, sizeof (sa));
2599 sa.sin_family = AF_INET;
2600 sa.sin_port = htons (port);
2601 #if HAVE_SOCKADDR_IN_SIN_LEN
2602 sa.sin_len = sizeof (sa);
2605 lsock = GNUNET_NETWORK_socket_create (AF_INET,
2609 if ((NULL == lsock) ||
2611 GNUNET_NETWORK_socket_bind (lsock, (const struct sockaddr *) &sa,
2614 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2615 "Failed to create listen socket bound to `%s'",
2616 GNUNET_a2s ((const struct sockaddr *) &sa, sizeof (sa)));
2618 GNUNET_NETWORK_socket_close (lsock);
2622 if (GNUNET_OK != GNUNET_NETWORK_socket_listen (lsock, 5))
2624 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2625 "Failed to listen on socket bound to `%s'",
2626 GNUNET_a2s ((const struct sockaddr *) &sa, sizeof (sa)));
2630 ltask = GNUNET_SCHEDULER_add_read_net (GNUNET_TIME_UNIT_FOREVER_REL,
2631 lsock, &do_accept, NULL);
2636 if (0 != curl_global_init (CURL_GLOBAL_WIN32))
2638 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2639 "cURL global init failed!\n");
2643 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
2644 "Proxy listens on port %u\n",
2647 mhd_httpd_head = NULL;
2648 mhd_httpd_tail = NULL;
2649 total_mhd_connections = 0;
2651 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns-proxy",
2655 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2656 "Specify PROXY_UNIXPATH in gns-proxy config section!\n");
2660 mhd_unix_socket = GNUNET_NETWORK_socket_create (AF_UNIX,
2664 if (NULL == mhd_unix_socket)
2666 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2667 "Unable to create unix domain socket!\n");
2671 mhd_unix_sock_addr.sun_family = AF_UNIX;
2672 strcpy (mhd_unix_sock_addr.sun_path, proxy_sockfile);
2675 mhd_unix_sock_addr.sun_path[0] = '\0';
2677 #if HAVE_SOCKADDR_IN_SIN_LEN
2678 mhd_unix_sock_addr.sun_len = (u_char) sizeof (struct sockaddr_un);
2681 len = strlen (proxy_sockfile) + sizeof(AF_UNIX);
2683 GNUNET_free (proxy_sockfile);
2685 if (GNUNET_OK != GNUNET_NETWORK_socket_bind (mhd_unix_socket,
2686 (struct sockaddr*)&mhd_unix_sock_addr,
2689 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2690 "Unable to bind unix domain socket!\n");
2694 if (GNUNET_OK != GNUNET_NETWORK_socket_listen (mhd_unix_socket,
2697 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
2698 "Unable to listen on unix domain socket!\n");
2702 hd = GNUNET_malloc (sizeof (struct MhdHttpList));
2703 hd->is_ssl = GNUNET_NO;
2704 strcpy (hd->domain, "");
2705 httpd = MHD_start_daemon (MHD_USE_DEBUG, 4444, //Dummy port
2707 &create_response, hd,
2708 MHD_OPTION_LISTEN_SOCKET, GNUNET_NETWORK_get_fd (mhd_unix_socket),
2709 MHD_OPTION_CONNECTION_LIMIT, MHD_MAX_CONNECTIONS,
2710 MHD_OPTION_CONNECTION_TIMEOUT, (unsigned int) 16,
2711 MHD_OPTION_NOTIFY_COMPLETED,
2715 GNUNET_assert (httpd != NULL);
2717 hd->httpd_task = GNUNET_SCHEDULER_NO_TASK;
2719 GNUNET_CONTAINER_DLL_insert (mhd_httpd_head, mhd_httpd_tail, hd);
2723 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
2724 &do_shutdown, NULL);
2730 * The main function for gnunet-gns-proxy.
2732 * @param argc number of arguments from the command line
2733 * @param argv command line arguments
2734 * @return 0 ok, 1 on error
2737 main (int argc, char *const *argv)
2739 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
2741 gettext_noop ("listen on specified port"), 1,
2742 &GNUNET_GETOPT_set_string, &port},
2743 {'a', "authority", NULL,
2744 gettext_noop ("pem file to use as CA"), 1,
2745 &GNUNET_GETOPT_set_string, &cafile_opt},
2746 GNUNET_GETOPT_OPTION_END
2751 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
2755 GNUNET_log_setup ("gnunet-gns-proxy", "WARNING", NULL);
2758 GNUNET_PROGRAM_run (argc, argv, "gnunet-gns-proxy",
2759 _("GNUnet GNS proxy"),
2761 &run, NULL)) ? 0 : 1;
2762 GNUNET_free_non_null ((char*)argv);