diff options
Diffstat (limited to 'src/gns/gnunet-bcd.c')
-rw-r--r-- | src/gns/gnunet-bcd.c | 533 |
1 files changed, 0 insertions, 533 deletions
diff --git a/src/gns/gnunet-bcd.c b/src/gns/gnunet-bcd.c deleted file mode 100644 index a2e94089c..000000000 --- a/src/gns/gnunet-bcd.c +++ /dev/null | |||
@@ -1,533 +0,0 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2013 GNUnet e.V. | ||
4 | |||
5 | GNUnet is free software: you can redistribute it and/or modify it | ||
6 | under the terms of the GNU Affero General Public License as published | ||
7 | by the Free Software Foundation, either version 3 of the License, | ||
8 | or (at your option) any later version. | ||
9 | |||
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 | Affero General Public License for more details. | ||
14 | |||
15 | You should have received a copy of the GNU Affero General Public License | ||
16 | along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
17 | |||
18 | SPDX-License-Identifier: AGPL3.0-or-later | ||
19 | */ | ||
20 | |||
21 | /** | ||
22 | * @file gns/gnunet-bcd.c | ||
23 | * @author Christian Grothoff | ||
24 | * @brief HTTP server to create GNS business cards | ||
25 | */ | ||
26 | |||
27 | #include "platform.h" | ||
28 | #include <microhttpd.h> | ||
29 | #include "gnunet_util_lib.h" | ||
30 | #include "gnunet_identity_service.h" | ||
31 | #include "gnunet_mhd_compat.h" | ||
32 | |||
33 | /** | ||
34 | * Error page to display if submitted GNS key is invalid. | ||
35 | */ | ||
36 | #define INVALID_GNSKEY \ | ||
37 | "<html><head><title>Error</title><body>Invalid GNS public key given.</body></html>" | ||
38 | |||
39 | /** | ||
40 | * Error page to display on 404. | ||
41 | */ | ||
42 | #define NOT_FOUND \ | ||
43 | "<html><head><title>Error</title><body>404 not found</body></html>" | ||
44 | |||
45 | /** | ||
46 | * Handle to the HTTP server as provided by libmicrohttpd | ||
47 | */ | ||
48 | static struct MHD_Daemon *daemon_handle; | ||
49 | |||
50 | /** | ||
51 | * Our configuration. | ||
52 | */ | ||
53 | static const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
54 | |||
55 | /** | ||
56 | * Our primary task for the HTTPD. | ||
57 | */ | ||
58 | static struct GNUNET_SCHEDULER_Task *http_task; | ||
59 | |||
60 | /** | ||
61 | * Our main website. | ||
62 | */ | ||
63 | static struct MHD_Response *main_response; | ||
64 | |||
65 | /** | ||
66 | * Error: invalid gns key. | ||
67 | */ | ||
68 | static struct MHD_Response *invalid_gnskey_response; | ||
69 | |||
70 | /** | ||
71 | * Error: 404 | ||
72 | */ | ||
73 | static struct MHD_Response *not_found_response; | ||
74 | |||
75 | /** | ||
76 | * Absolute name of the 'gns-bcd.tex' file. | ||
77 | */ | ||
78 | static char *resfile; | ||
79 | |||
80 | /** | ||
81 | * Port number. | ||
82 | */ | ||
83 | static uint16_t port = 8888; | ||
84 | |||
85 | |||
86 | struct Entry | ||
87 | { | ||
88 | const char *formname; | ||
89 | const char *texname; | ||
90 | }; | ||
91 | |||
92 | |||
93 | /** | ||
94 | * Main request handler. | ||
95 | */ | ||
96 | static MHD_RESULT | ||
97 | access_handler_callback (void *cls, | ||
98 | struct MHD_Connection *connection, | ||
99 | const char *url, | ||
100 | const char *method, | ||
101 | const char *version, | ||
102 | const char *upload_data, | ||
103 | size_t *upload_data_size, | ||
104 | void **con_cls) | ||
105 | { | ||
106 | static int dummy; | ||
107 | static const struct Entry map[] = { { "prefix", "prefix" }, | ||
108 | { "name", "name" }, | ||
109 | { "suffix", "suffix" }, | ||
110 | { "street", "street" }, | ||
111 | { "city", "city" }, | ||
112 | { "phone", "phone" }, | ||
113 | { "fax", "fax" }, | ||
114 | { "email", "email" }, | ||
115 | { "homepage", "homepage" }, | ||
116 | { "orga", "orga" }, | ||
117 | { "departmenti18n", "departmentde" }, | ||
118 | { "departmenten", "departmenten" }, | ||
119 | { "subdepartmenti18n", | ||
120 | "subdepartmentde" }, | ||
121 | { "subdepartmenten", "subdepartmenten" }, | ||
122 | { "jobtitlei18n", "jobtitlegerman" }, | ||
123 | { "jobtitleen", "jobtitleenglish" }, | ||
124 | { "subdepartmenten", "subdepartmenten" }, | ||
125 | { NULL, NULL } }; | ||
126 | |||
127 | (void) cls; | ||
128 | (void) version; | ||
129 | (void) upload_data; | ||
130 | (void) upload_data_size; | ||
131 | if (0 != strcmp (method, MHD_HTTP_METHOD_GET)) | ||
132 | { | ||
133 | GNUNET_log (GNUNET_ERROR_TYPE_WARNING, | ||
134 | _ ("Refusing `%s' request to HTTP server\n"), | ||
135 | method); | ||
136 | return MHD_NO; | ||
137 | } | ||
138 | if (NULL == *con_cls) | ||
139 | { | ||
140 | (*con_cls) = &dummy; | ||
141 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Sending 100 CONTINUE reply\n"); | ||
142 | return MHD_YES; /* send 100 continue */ | ||
143 | } | ||
144 | if (0 == strcasecmp (url, "/")) | ||
145 | return MHD_queue_response (connection, MHD_HTTP_OK, main_response); | ||
146 | if (0 == strcasecmp (url, "/submit.pdf")) | ||
147 | { | ||
148 | unsigned int i; | ||
149 | char *p; | ||
150 | char *tmp; | ||
151 | char *deffile; | ||
152 | struct GNUNET_IDENTITY_PublicKey pub; | ||
153 | size_t slen; | ||
154 | FILE *f; | ||
155 | struct stat st; | ||
156 | struct MHD_Response *response; | ||
157 | int fd; | ||
158 | MHD_RESULT ret; | ||
159 | |||
160 | const char *gpg_fp = MHD_lookup_connection_value (connection, | ||
161 | MHD_GET_ARGUMENT_KIND, | ||
162 | "gpgfingerprint"); | ||
163 | const char *gns_nick = MHD_lookup_connection_value (connection, | ||
164 | MHD_GET_ARGUMENT_KIND, | ||
165 | "gnsnick"); | ||
166 | const char *gnskey = | ||
167 | MHD_lookup_connection_value (connection, MHD_GET_ARGUMENT_KIND, "gnskey"); | ||
168 | if ((NULL == gnskey) || | ||
169 | (GNUNET_OK != | ||
170 | GNUNET_IDENTITY_public_key_from_string (gnskey, | ||
171 | &pub))) | ||
172 | { | ||
173 | return MHD_queue_response (connection, | ||
174 | MHD_HTTP_OK, | ||
175 | invalid_gnskey_response); | ||
176 | } | ||
177 | tmp = GNUNET_DISK_mkdtemp (gnskey); | ||
178 | if (NULL == tmp) | ||
179 | { | ||
180 | GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "mktemp", gnskey); | ||
181 | return MHD_NO; | ||
182 | } | ||
183 | GNUNET_asprintf (&deffile, "%s%s%s", tmp, DIR_SEPARATOR_STR, "def.tex"); | ||
184 | f = fopen (deffile, "w"); | ||
185 | if (NULL == f) | ||
186 | { | ||
187 | GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open", deffile); | ||
188 | GNUNET_free (deffile); | ||
189 | GNUNET_DISK_directory_remove (tmp); | ||
190 | GNUNET_free (tmp); | ||
191 | return MHD_NO; | ||
192 | } | ||
193 | for (i = 0; NULL != map[i].formname; i++) | ||
194 | { | ||
195 | const char *val = MHD_lookup_connection_value (connection, | ||
196 | MHD_GET_ARGUMENT_KIND, | ||
197 | map[i].formname); | ||
198 | if (NULL != val) | ||
199 | fprintf (f, "\\def\\%s{%s}\n", map[i].texname, val); | ||
200 | else | ||
201 | fprintf (f, "\\def\\%s{}\n", map[i].texname); | ||
202 | } | ||
203 | if (NULL != gpg_fp) | ||
204 | { | ||
205 | char *gpg1; | ||
206 | char *gpg2; | ||
207 | |||
208 | slen = strlen (gpg_fp); | ||
209 | gpg1 = GNUNET_strndup (gpg_fp, slen / 2); | ||
210 | gpg2 = GNUNET_strdup (&gpg_fp[slen / 2]); | ||
211 | fprintf (f, "\\def\\gpglineone{%s}\n\\def\\gpglinetwo{%s}\n", gpg1, gpg2); | ||
212 | GNUNET_free (gpg2); | ||
213 | GNUNET_free (gpg1); | ||
214 | } | ||
215 | fprintf (f, | ||
216 | "\\def\\gns{%s/%s}\n", | ||
217 | gnskey, | ||
218 | (NULL == gns_nick) ? "" : gns_nick); | ||
219 | fclose (f); | ||
220 | GNUNET_asprintf ( | ||
221 | &p, | ||
222 | "cd %s; cp %s gns-bcd.tex | pdflatex --enable-write18 gns-bcd.tex > /dev/null 2> /dev/null", | ||
223 | tmp, | ||
224 | resfile); | ||
225 | GNUNET_free (deffile); | ||
226 | ret = system (p); | ||
227 | if (WIFSIGNALED (ret) || (0 != WEXITSTATUS (ret))) | ||
228 | GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "system", p); | ||
229 | GNUNET_asprintf (&deffile, "%s%s%s", tmp, DIR_SEPARATOR_STR, "gns-bcd.pdf"); | ||
230 | fd = open (deffile, O_RDONLY); | ||
231 | if (-1 == fd) | ||
232 | { | ||
233 | GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open", deffile); | ||
234 | GNUNET_free (deffile); | ||
235 | GNUNET_free (p); | ||
236 | GNUNET_DISK_directory_remove (tmp); | ||
237 | GNUNET_free (tmp); | ||
238 | return MHD_NO; | ||
239 | } | ||
240 | GNUNET_break (0 == stat (deffile, &st)); | ||
241 | if (NULL == | ||
242 | (response = MHD_create_response_from_fd ((size_t) st.st_size, fd))) | ||
243 | { | ||
244 | GNUNET_break (0); | ||
245 | GNUNET_break (0 == close (fd)); | ||
246 | GNUNET_free (deffile); | ||
247 | GNUNET_free (p); | ||
248 | GNUNET_DISK_directory_remove (tmp); | ||
249 | GNUNET_free (tmp); | ||
250 | return MHD_NO; | ||
251 | } | ||
252 | (void) MHD_add_response_header (response, | ||
253 | MHD_HTTP_HEADER_CONTENT_TYPE, | ||
254 | "application/pdf"); | ||
255 | ret = MHD_queue_response (connection, MHD_HTTP_OK, response); | ||
256 | MHD_destroy_response (response); | ||
257 | GNUNET_free (deffile); | ||
258 | GNUNET_free (p); | ||
259 | GNUNET_DISK_directory_remove (tmp); | ||
260 | GNUNET_free (tmp); | ||
261 | return ret; | ||
262 | } | ||
263 | return MHD_queue_response (connection, | ||
264 | MHD_HTTP_NOT_FOUND, | ||
265 | not_found_response); | ||
266 | } | ||
267 | |||
268 | |||
269 | /** | ||
270 | * Function that queries MHD's select sets and | ||
271 | * starts the task waiting for them. | ||
272 | */ | ||
273 | static struct GNUNET_SCHEDULER_Task * | ||
274 | prepare_daemon (struct MHD_Daemon *daemon_handle); | ||
275 | |||
276 | |||
277 | /** | ||
278 | * Call MHD to process pending requests and then go back | ||
279 | * and schedule the next run. | ||
280 | */ | ||
281 | static void | ||
282 | run_daemon (void *cls) | ||
283 | { | ||
284 | struct MHD_Daemon *daemon_handle = cls; | ||
285 | |||
286 | http_task = NULL; | ||
287 | GNUNET_assert (MHD_YES == MHD_run (daemon_handle)); | ||
288 | http_task = prepare_daemon (daemon_handle); | ||
289 | } | ||
290 | |||
291 | |||
292 | /** | ||
293 | * Function that queries MHD's select sets and | ||
294 | * starts the task waiting for them. | ||
295 | */ | ||
296 | static struct GNUNET_SCHEDULER_Task * | ||
297 | prepare_daemon (struct MHD_Daemon *daemon_handle) | ||
298 | { | ||
299 | struct GNUNET_SCHEDULER_Task *ret; | ||
300 | fd_set rs; | ||
301 | fd_set ws; | ||
302 | fd_set es; | ||
303 | struct GNUNET_NETWORK_FDSet *wrs; | ||
304 | struct GNUNET_NETWORK_FDSet *wws; | ||
305 | int max; | ||
306 | MHD_UNSIGNED_LONG_LONG timeout; | ||
307 | int haveto; | ||
308 | struct GNUNET_TIME_Relative tv; | ||
309 | |||
310 | FD_ZERO (&rs); | ||
311 | FD_ZERO (&ws); | ||
312 | FD_ZERO (&es); | ||
313 | wrs = GNUNET_NETWORK_fdset_create (); | ||
314 | wws = GNUNET_NETWORK_fdset_create (); | ||
315 | max = -1; | ||
316 | GNUNET_assert (MHD_YES == MHD_get_fdset (daemon_handle, &rs, &ws, &es, &max)); | ||
317 | haveto = MHD_get_timeout (daemon_handle, &timeout); | ||
318 | if (haveto == MHD_YES) | ||
319 | tv.rel_value_us = (uint64_t) timeout * 1000LL; | ||
320 | else | ||
321 | tv = GNUNET_TIME_UNIT_FOREVER_REL; | ||
322 | GNUNET_NETWORK_fdset_copy_native (wrs, &rs, max + 1); | ||
323 | GNUNET_NETWORK_fdset_copy_native (wws, &ws, max + 1); | ||
324 | ret = GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_HIGH, | ||
325 | tv, | ||
326 | wrs, | ||
327 | wws, | ||
328 | &run_daemon, | ||
329 | daemon_handle); | ||
330 | GNUNET_NETWORK_fdset_destroy (wrs); | ||
331 | GNUNET_NETWORK_fdset_destroy (wws); | ||
332 | return ret; | ||
333 | } | ||
334 | |||
335 | |||
336 | /** | ||
337 | * Start server offering our hostlist. | ||
338 | * | ||
339 | * @return #GNUNET_OK on success | ||
340 | */ | ||
341 | static int | ||
342 | server_start () | ||
343 | { | ||
344 | if (0 == port) | ||
345 | { | ||
346 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
347 | _ ("Invalid port number %u. Exiting.\n"), | ||
348 | port); | ||
349 | return GNUNET_SYSERR; | ||
350 | } | ||
351 | GNUNET_log (GNUNET_ERROR_TYPE_INFO, | ||
352 | _ ("Businesscard HTTP server starts on %u\n"), | ||
353 | port); | ||
354 | daemon_handle = MHD_start_daemon (MHD_USE_DUAL_STACK | MHD_USE_DEBUG, | ||
355 | port, | ||
356 | NULL /* accept_policy_callback */, | ||
357 | NULL, | ||
358 | &access_handler_callback, | ||
359 | NULL, | ||
360 | MHD_OPTION_CONNECTION_LIMIT, | ||
361 | (unsigned int) 512, | ||
362 | MHD_OPTION_PER_IP_CONNECTION_LIMIT, | ||
363 | (unsigned int) 2, | ||
364 | MHD_OPTION_CONNECTION_TIMEOUT, | ||
365 | (unsigned int) 60, | ||
366 | MHD_OPTION_CONNECTION_MEMORY_LIMIT, | ||
367 | (size_t) (16 * 1024), | ||
368 | MHD_OPTION_END); | ||
369 | if (NULL == daemon_handle) | ||
370 | { | ||
371 | GNUNET_log (GNUNET_ERROR_TYPE_ERROR, | ||
372 | _ ("Could not start businesscard HTTP server on port %u\n"), | ||
373 | (unsigned int) port); | ||
374 | return GNUNET_SYSERR; | ||
375 | } | ||
376 | http_task = prepare_daemon (daemon_handle); | ||
377 | return GNUNET_OK; | ||
378 | } | ||
379 | |||
380 | |||
381 | /** | ||
382 | * Stop HTTP server. | ||
383 | */ | ||
384 | static void | ||
385 | server_stop (void *cls) | ||
386 | { | ||
387 | (void) cls; | ||
388 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "HTTP server shutdown\n"); | ||
389 | if (NULL != http_task) | ||
390 | { | ||
391 | GNUNET_SCHEDULER_cancel (http_task); | ||
392 | http_task = NULL; | ||
393 | } | ||
394 | if (NULL != daemon_handle) | ||
395 | { | ||
396 | MHD_stop_daemon (daemon_handle); | ||
397 | daemon_handle = NULL; | ||
398 | } | ||
399 | if (NULL != main_response) | ||
400 | { | ||
401 | MHD_destroy_response (main_response); | ||
402 | main_response = NULL; | ||
403 | } | ||
404 | if (NULL != invalid_gnskey_response) | ||
405 | { | ||
406 | MHD_destroy_response (invalid_gnskey_response); | ||
407 | invalid_gnskey_response = NULL; | ||
408 | } | ||
409 | if (NULL != not_found_response) | ||
410 | { | ||
411 | MHD_destroy_response (not_found_response); | ||
412 | not_found_response = NULL; | ||
413 | } | ||
414 | if (NULL != resfile) | ||
415 | { | ||
416 | GNUNET_free (resfile); | ||
417 | resfile = NULL; | ||
418 | } | ||
419 | } | ||
420 | |||
421 | |||
422 | /** | ||
423 | * Main function that will be run. | ||
424 | * | ||
425 | * @param cls closure | ||
426 | * @param args remaining command-line arguments | ||
427 | * @param cfgfile name of the configuration file used (for saving, can be NULL!) | ||
428 | * @param c configuration | ||
429 | */ | ||
430 | static void | ||
431 | run (void *cls, | ||
432 | char *const *args, | ||
433 | const char *cfgfile, | ||
434 | const struct GNUNET_CONFIGURATION_Handle *c) | ||
435 | { | ||
436 | struct stat st; | ||
437 | char *dir; | ||
438 | char *fn; | ||
439 | int fd; | ||
440 | |||
441 | (void) cls; | ||
442 | (void) args; | ||
443 | (void) cfgfile; | ||
444 | cfg = c; | ||
445 | dir = GNUNET_OS_installation_get_path (GNUNET_OS_IPK_DATADIR); | ||
446 | GNUNET_assert (NULL != dir); | ||
447 | GNUNET_asprintf (&fn, "%s%s%s", dir, DIR_SEPARATOR_STR, "gns-bcd.html"); | ||
448 | GNUNET_asprintf (&resfile, "%s%s%s", dir, DIR_SEPARATOR_STR, "gns-bcd.tex"); | ||
449 | GNUNET_free (dir); | ||
450 | fd = open (fn, O_RDONLY); | ||
451 | if (-1 == fd) | ||
452 | { | ||
453 | GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open", fn); | ||
454 | GNUNET_free (fn); | ||
455 | return; | ||
456 | } | ||
457 | if (0 != stat (fn, &st)) | ||
458 | { | ||
459 | GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR, "open", fn); | ||
460 | GNUNET_free (fn); | ||
461 | GNUNET_break (0 == close (fd)); | ||
462 | return; | ||
463 | } | ||
464 | GNUNET_free (fn); | ||
465 | if (NULL == | ||
466 | (main_response = MHD_create_response_from_fd ((size_t) st.st_size, fd))) | ||
467 | { | ||
468 | GNUNET_break (0); | ||
469 | GNUNET_break (0 == close (fd)); | ||
470 | return; | ||
471 | } | ||
472 | (void) MHD_add_response_header (main_response, | ||
473 | MHD_HTTP_HEADER_CONTENT_TYPE, | ||
474 | "text/html"); | ||
475 | invalid_gnskey_response = | ||
476 | MHD_create_response_from_buffer (strlen (INVALID_GNSKEY), | ||
477 | INVALID_GNSKEY, | ||
478 | MHD_RESPMEM_PERSISTENT); | ||
479 | (void) MHD_add_response_header (invalid_gnskey_response, | ||
480 | MHD_HTTP_HEADER_CONTENT_TYPE, | ||
481 | "text/html"); | ||
482 | not_found_response = MHD_create_response_from_buffer (strlen (NOT_FOUND), | ||
483 | NOT_FOUND, | ||
484 | MHD_RESPMEM_PERSISTENT); | ||
485 | (void) MHD_add_response_header (not_found_response, | ||
486 | MHD_HTTP_HEADER_CONTENT_TYPE, | ||
487 | "text/html"); | ||
488 | if (GNUNET_OK != server_start ()) | ||
489 | return; | ||
490 | GNUNET_SCHEDULER_add_shutdown (&server_stop, NULL); | ||
491 | } | ||
492 | |||
493 | |||
494 | /** | ||
495 | * The main function for gnunet-gns. | ||
496 | * | ||
497 | * @param argc number of arguments from the command line | ||
498 | * @param argv command line arguments | ||
499 | * @return 0 ok, 1 on error | ||
500 | */ | ||
501 | int | ||
502 | main (int argc, char *const *argv) | ||
503 | { | ||
504 | struct GNUNET_GETOPT_CommandLineOption options[] = { | ||
505 | GNUNET_GETOPT_option_uint16 ('p', | ||
506 | "port", | ||
507 | "PORT", | ||
508 | gettext_noop ( | ||
509 | "Run HTTP serve on port PORT (default is 8888)"), | ||
510 | &port), | ||
511 | GNUNET_GETOPT_OPTION_END | ||
512 | }; | ||
513 | int ret; | ||
514 | |||
515 | if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv)) | ||
516 | return 2; | ||
517 | GNUNET_log_setup ("gnunet-bcd", "WARNING", NULL); | ||
518 | ret = (GNUNET_OK == | ||
519 | GNUNET_PROGRAM_run (argc, | ||
520 | argv, | ||
521 | "gnunet-bcd", | ||
522 | _ ("GNUnet HTTP server to create business cards"), | ||
523 | options, | ||
524 | &run, | ||
525 | NULL)) | ||
526 | ? 0 | ||
527 | : 1; | ||
528 | GNUNET_free_nz ((void *) argv); | ||
529 | return ret; | ||
530 | } | ||
531 | |||
532 | |||
533 | /* end of gnunet-bcd.c */ | ||