diff options
author | Schanzenbach, Martin <mschanzenbach@posteo.de> | 2019-03-12 09:36:17 +0100 |
---|---|---|
committer | Schanzenbach, Martin <mschanzenbach@posteo.de> | 2019-03-12 09:36:17 +0100 |
commit | 919bb8c92fa1b7cda53401ff2286b980ca0b12d8 (patch) | |
tree | b0ab4ebf063c0ccb2a4b8095463d1e7a6884bf2e /src/gns | |
parent | 76c6ccfdfe09891db424ead5209f041f0e71dc63 (diff) | |
download | gnunet-919bb8c92fa1b7cda53401ff2286b980ca0b12d8.tar.gz gnunet-919bb8c92fa1b7cda53401ff2286b980ca0b12d8.zip |
move reclaim and gns back into subdirs
Diffstat (limited to 'src/gns')
-rw-r--r-- | src/gns/Makefile.am | 24 | ||||
-rw-r--r-- | src/gns/plugin_rest_gns.c | 478 |
2 files changed, 501 insertions, 1 deletions
diff --git a/src/gns/Makefile.am b/src/gns/Makefile.am index 434d50f34..6ebbbcaff 100644 --- a/src/gns/Makefile.am +++ b/src/gns/Makefile.am | |||
@@ -89,9 +89,16 @@ bin_PROGRAMS += gnunet-bcd | |||
89 | endif | 89 | endif |
90 | endif | 90 | endif |
91 | 91 | ||
92 | if HAVE_MHD | ||
93 | if HAVE_JSON | ||
94 | REST_PLUGIN = libgnunet_plugin_rest_gns.la | ||
95 | endif | ||
96 | endif | ||
97 | |||
92 | plugin_LTLIBRARIES = \ | 98 | plugin_LTLIBRARIES = \ |
93 | libgnunet_plugin_block_gns.la \ | 99 | libgnunet_plugin_block_gns.la \ |
94 | libgnunet_plugin_gnsrecord_gns.la | 100 | libgnunet_plugin_gnsrecord_gns.la \ |
101 | $(REST_PLUGIN) | ||
95 | 102 | ||
96 | 103 | ||
97 | bin_SCRIPTS = \ | 104 | bin_SCRIPTS = \ |
@@ -104,6 +111,21 @@ gnunet-gns-proxy-setup-ca: gnunet-gns-proxy-setup-ca.in Makefile | |||
104 | $(do_subst) < $(srcdir)/gnunet-gns-proxy-setup-ca.in > gnunet-gns-proxy-setup-ca | 111 | $(do_subst) < $(srcdir)/gnunet-gns-proxy-setup-ca.in > gnunet-gns-proxy-setup-ca |
105 | chmod +x gnunet-gns-proxy-setup-ca | 112 | chmod +x gnunet-gns-proxy-setup-ca |
106 | 113 | ||
114 | |||
115 | libgnunet_plugin_rest_gns_la_SOURCES = \ | ||
116 | plugin_rest_gns.c | ||
117 | libgnunet_plugin_rest_gns_la_LIBADD = \ | ||
118 | $(top_builddir)/src/gnsrecord/libgnunetgnsrecord.la \ | ||
119 | libgnunetgns.la \ | ||
120 | $(top_builddir)/src/rest/libgnunetrest.la \ | ||
121 | $(top_builddir)/src/identity/libgnunetidentity.la \ | ||
122 | $(top_builddir)/src/json/libgnunetjson.la \ | ||
123 | $(top_builddir)/src/util/libgnunetutil.la $(XLIBS) \ | ||
124 | $(LTLIBINTL) -ljansson -lmicrohttpd | ||
125 | libgnunet_plugin_rest_gns_la_LDFLAGS = \ | ||
126 | $(GN_PLUGIN_LDFLAGS) | ||
127 | |||
128 | |||
107 | libgnunet_plugin_gnsrecord_gns_la_SOURCES = \ | 129 | libgnunet_plugin_gnsrecord_gns_la_SOURCES = \ |
108 | plugin_gnsrecord_gns.c | 130 | plugin_gnsrecord_gns.c |
109 | libgnunet_plugin_gnsrecord_gns_la_LIBADD = \ | 131 | libgnunet_plugin_gnsrecord_gns_la_LIBADD = \ |
diff --git a/src/gns/plugin_rest_gns.c b/src/gns/plugin_rest_gns.c new file mode 100644 index 000000000..e41df4085 --- /dev/null +++ b/src/gns/plugin_rest_gns.c | |||
@@ -0,0 +1,478 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2012-2015 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 | * @author Philippe Buschmann | ||
22 | * @file gns/plugin_rest_gns.c | ||
23 | * @brief GNUnet Gns REST plugin | ||
24 | */ | ||
25 | |||
26 | #include "platform.h" | ||
27 | #include "gnunet_rest_plugin.h" | ||
28 | #include "gnunet_rest_lib.h" | ||
29 | #include "gnunet_json_lib.h" | ||
30 | #include "gnunet_gnsrecord_lib.h" | ||
31 | #include "gnunet_gns_service.h" | ||
32 | #include "microhttpd.h" | ||
33 | #include <jansson.h> | ||
34 | |||
35 | /** | ||
36 | * Rest API GNS Namespace | ||
37 | */ | ||
38 | #define GNUNET_REST_API_NS_GNS "/gns" | ||
39 | |||
40 | /** | ||
41 | * Rest API GNS Parameter record_type | ||
42 | */ | ||
43 | #define GNUNET_REST_GNS_PARAM_RECORD_TYPE "record_type" | ||
44 | |||
45 | /** | ||
46 | * Rest API GNS ERROR Unknown Error | ||
47 | */ | ||
48 | #define GNUNET_REST_GNS_ERROR_UNKNOWN "Unknown Error" | ||
49 | |||
50 | /** | ||
51 | * Rest API GNS ERROR Record not found | ||
52 | */ | ||
53 | #define GNUNET_REST_GNS_NOT_FOUND "Record not found" | ||
54 | |||
55 | /** | ||
56 | * The configuration handle | ||
57 | */ | ||
58 | const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
59 | |||
60 | /** | ||
61 | * HTTP methods allows for this plugin | ||
62 | */ | ||
63 | static char* allow_methods; | ||
64 | |||
65 | /** | ||
66 | * @brief struct returned by the initialization function of the plugin | ||
67 | */ | ||
68 | struct Plugin | ||
69 | { | ||
70 | const struct GNUNET_CONFIGURATION_Handle *cfg; | ||
71 | }; | ||
72 | |||
73 | /** | ||
74 | * The request handle | ||
75 | */ | ||
76 | struct RequestHandle | ||
77 | { | ||
78 | |||
79 | /** | ||
80 | * Connection to GNS | ||
81 | */ | ||
82 | struct GNUNET_GNS_Handle *gns; | ||
83 | |||
84 | /** | ||
85 | * Active GNS lookup | ||
86 | */ | ||
87 | struct GNUNET_GNS_LookupWithTldRequest *gns_lookup; | ||
88 | |||
89 | /** | ||
90 | * Name to look up | ||
91 | */ | ||
92 | char *name; | ||
93 | |||
94 | /** | ||
95 | * Record type to look up | ||
96 | */ | ||
97 | int record_type; | ||
98 | |||
99 | /** | ||
100 | * Rest connection | ||
101 | */ | ||
102 | struct GNUNET_REST_RequestHandle *rest_handle; | ||
103 | |||
104 | /** | ||
105 | * Desired timeout for the lookup (default is no timeout). | ||
106 | */ | ||
107 | struct GNUNET_TIME_Relative timeout; | ||
108 | |||
109 | /** | ||
110 | * ID of a task associated with the resolution process. | ||
111 | */ | ||
112 | struct GNUNET_SCHEDULER_Task *timeout_task; | ||
113 | |||
114 | /** | ||
115 | * The plugin result processor | ||
116 | */ | ||
117 | GNUNET_REST_ResultProcessor proc; | ||
118 | |||
119 | /** | ||
120 | * The closure of the result processor | ||
121 | */ | ||
122 | void *proc_cls; | ||
123 | |||
124 | /** | ||
125 | * The url | ||
126 | */ | ||
127 | char *url; | ||
128 | |||
129 | /** | ||
130 | * Error response message | ||
131 | */ | ||
132 | char *emsg; | ||
133 | |||
134 | /** | ||
135 | * Response code | ||
136 | */ | ||
137 | int response_code; | ||
138 | |||
139 | }; | ||
140 | |||
141 | |||
142 | /** | ||
143 | * Cleanup lookup handle | ||
144 | * @param handle Handle to clean up | ||
145 | */ | ||
146 | static void | ||
147 | cleanup_handle (void *cls) | ||
148 | { | ||
149 | struct RequestHandle *handle = cls; | ||
150 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
151 | "Cleaning up\n"); | ||
152 | |||
153 | if (NULL != handle->gns_lookup) | ||
154 | { | ||
155 | GNUNET_GNS_lookup_with_tld_cancel (handle->gns_lookup); | ||
156 | handle->gns_lookup = NULL; | ||
157 | } | ||
158 | if (NULL != handle->gns) | ||
159 | { | ||
160 | GNUNET_GNS_disconnect (handle->gns); | ||
161 | handle->gns = NULL; | ||
162 | } | ||
163 | |||
164 | if (NULL != handle->timeout_task) | ||
165 | { | ||
166 | GNUNET_SCHEDULER_cancel (handle->timeout_task); | ||
167 | handle->timeout_task = NULL; | ||
168 | } | ||
169 | if (NULL != handle->url) | ||
170 | GNUNET_free (handle->url); | ||
171 | if (NULL != handle->name) | ||
172 | GNUNET_free (handle->name); | ||
173 | if (NULL != handle->emsg) | ||
174 | GNUNET_free (handle->emsg); | ||
175 | |||
176 | GNUNET_free (handle); | ||
177 | } | ||
178 | |||
179 | |||
180 | /** | ||
181 | * Task run on errors. Reports an error and cleans up everything. | ||
182 | * | ||
183 | * @param cls the `struct RequestHandle` | ||
184 | */ | ||
185 | static void | ||
186 | do_error (void *cls) | ||
187 | { | ||
188 | struct RequestHandle *handle = cls; | ||
189 | struct MHD_Response *resp; | ||
190 | json_t *json_error = json_object(); | ||
191 | char *response; | ||
192 | |||
193 | if (NULL == handle->emsg) | ||
194 | handle->emsg = GNUNET_strdup(GNUNET_REST_GNS_ERROR_UNKNOWN); | ||
195 | |||
196 | json_object_set_new(json_error,"error", json_string(handle->emsg)); | ||
197 | |||
198 | if (0 == handle->response_code) | ||
199 | handle->response_code = MHD_HTTP_OK; | ||
200 | response = json_dumps (json_error, 0); | ||
201 | resp = GNUNET_REST_create_response (response); | ||
202 | handle->proc (handle->proc_cls, resp, handle->response_code); | ||
203 | json_decref(json_error); | ||
204 | GNUNET_free(response); | ||
205 | GNUNET_SCHEDULER_add_now (&cleanup_handle, handle); | ||
206 | } | ||
207 | |||
208 | |||
209 | /** | ||
210 | * Iterator called on obtained result for a GNS lookup. | ||
211 | * | ||
212 | * @param cls closure with the object | ||
213 | * @param was_gns #GNUNET_NO if name was not a GNS name | ||
214 | * @param rd_count number of records in @a rd | ||
215 | * @param rd the records in reply | ||
216 | */ | ||
217 | static void | ||
218 | handle_gns_response (void *cls, | ||
219 | int was_gns, | ||
220 | uint32_t rd_count, | ||
221 | const struct GNUNET_GNSRECORD_Data *rd) | ||
222 | { | ||
223 | struct RequestHandle *handle = cls; | ||
224 | struct MHD_Response *resp; | ||
225 | json_t *result_array; | ||
226 | json_t *record_obj; | ||
227 | char *result; | ||
228 | |||
229 | handle->gns_lookup = NULL; | ||
230 | |||
231 | if (GNUNET_NO == was_gns) | ||
232 | { | ||
233 | handle->response_code = MHD_HTTP_NOT_FOUND; | ||
234 | handle->emsg = GNUNET_strdup(GNUNET_REST_GNS_NOT_FOUND); | ||
235 | GNUNET_SCHEDULER_add_now (&do_error, handle); | ||
236 | return; | ||
237 | } | ||
238 | |||
239 | result_array = json_array(); | ||
240 | for (uint32_t i=0;i<rd_count;i++) | ||
241 | { | ||
242 | if ((rd[i].record_type != handle->record_type) && | ||
243 | (GNUNET_GNSRECORD_TYPE_ANY != handle->record_type) ) | ||
244 | { | ||
245 | continue; | ||
246 | } | ||
247 | |||
248 | record_obj = GNUNET_JSON_from_gns_record(NULL,&rd[i]); | ||
249 | json_array_append (result_array, record_obj); | ||
250 | json_decref (record_obj); | ||
251 | } | ||
252 | |||
253 | result = json_dumps(result_array, 0); | ||
254 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Result %s\n", result); | ||
255 | resp = GNUNET_REST_create_response (result); | ||
256 | handle->proc (handle->proc_cls, resp, MHD_HTTP_OK); | ||
257 | GNUNET_free (result); | ||
258 | json_decref (result_array); | ||
259 | GNUNET_SCHEDULER_add_now(&cleanup_handle, handle); | ||
260 | } | ||
261 | |||
262 | |||
263 | /** | ||
264 | * Handle gns GET request | ||
265 | * | ||
266 | * @param con_handle the connection handle | ||
267 | * @param url the url | ||
268 | * @param cls the RequestHandle | ||
269 | */ | ||
270 | void | ||
271 | get_gns_cont (struct GNUNET_REST_RequestHandle *con_handle, | ||
272 | const char* url, | ||
273 | void *cls) | ||
274 | { | ||
275 | struct RequestHandle *handle = cls; | ||
276 | struct GNUNET_HashCode key; | ||
277 | char *record_type; | ||
278 | char *name; | ||
279 | |||
280 | name = NULL; | ||
281 | handle->name = NULL; | ||
282 | if (strlen (GNUNET_REST_API_NS_GNS) < strlen (handle->url)) | ||
283 | { | ||
284 | name = &handle->url[strlen (GNUNET_REST_API_NS_GNS) + 1]; | ||
285 | } | ||
286 | |||
287 | if (NULL == name) | ||
288 | { | ||
289 | handle->response_code = MHD_HTTP_NOT_FOUND; | ||
290 | handle->emsg = GNUNET_strdup(GNUNET_REST_GNS_NOT_FOUND); | ||
291 | GNUNET_SCHEDULER_add_now (&do_error, handle); | ||
292 | return; | ||
293 | } | ||
294 | if (0 >= strlen (name)) | ||
295 | { | ||
296 | handle->response_code = MHD_HTTP_NOT_FOUND; | ||
297 | handle->emsg = GNUNET_strdup(GNUNET_REST_GNS_NOT_FOUND); | ||
298 | GNUNET_SCHEDULER_add_now (&do_error, handle); | ||
299 | return; | ||
300 | } | ||
301 | handle->name = GNUNET_strdup(name); | ||
302 | |||
303 | handle->record_type = UINT32_MAX; | ||
304 | GNUNET_CRYPTO_hash (GNUNET_REST_GNS_PARAM_RECORD_TYPE, | ||
305 | strlen (GNUNET_REST_GNS_PARAM_RECORD_TYPE), | ||
306 | &key); | ||
307 | if ( GNUNET_YES | ||
308 | == GNUNET_CONTAINER_multihashmap_contains (con_handle->url_param_map, | ||
309 | &key)) | ||
310 | { | ||
311 | record_type = GNUNET_CONTAINER_multihashmap_get (con_handle->url_param_map, &key); | ||
312 | handle->record_type = GNUNET_GNSRECORD_typename_to_number(record_type); | ||
313 | } | ||
314 | |||
315 | if(UINT32_MAX == handle->record_type) | ||
316 | { | ||
317 | handle->record_type = GNUNET_GNSRECORD_TYPE_ANY; | ||
318 | } | ||
319 | |||
320 | handle->gns_lookup = GNUNET_GNS_lookup_with_tld (handle->gns, | ||
321 | handle->name, | ||
322 | handle->record_type, | ||
323 | GNUNET_NO, | ||
324 | &handle_gns_response, | ||
325 | handle); | ||
326 | } | ||
327 | |||
328 | |||
329 | |||
330 | /** | ||
331 | * Respond to OPTIONS request | ||
332 | * | ||
333 | * @param con_handle the connection handle | ||
334 | * @param url the url | ||
335 | * @param cls the RequestHandle | ||
336 | */ | ||
337 | static void | ||
338 | options_cont (struct GNUNET_REST_RequestHandle *con_handle, | ||
339 | const char* url, | ||
340 | void *cls) | ||
341 | { | ||
342 | struct MHD_Response *resp; | ||
343 | struct RequestHandle *handle = cls; | ||
344 | |||
345 | //independent of path return all options | ||
346 | resp = GNUNET_REST_create_response (NULL); | ||
347 | MHD_add_response_header (resp, | ||
348 | "Access-Control-Allow-Methods", | ||
349 | allow_methods); | ||
350 | handle->proc (handle->proc_cls, resp, MHD_HTTP_OK); | ||
351 | GNUNET_SCHEDULER_add_now(&cleanup_handle, handle); | ||
352 | return; | ||
353 | } | ||
354 | |||
355 | |||
356 | /** | ||
357 | * Handle rest request | ||
358 | * | ||
359 | * @param handle the request handle | ||
360 | */ | ||
361 | static void | ||
362 | init_cont (struct RequestHandle *handle) | ||
363 | { | ||
364 | struct GNUNET_REST_RequestHandlerError err; | ||
365 | static const struct GNUNET_REST_RequestHandler handlers[] = { | ||
366 | {MHD_HTTP_METHOD_GET, GNUNET_REST_API_NS_GNS, &get_gns_cont}, | ||
367 | {MHD_HTTP_METHOD_OPTIONS, GNUNET_REST_API_NS_GNS, &options_cont}, | ||
368 | GNUNET_REST_HANDLER_END | ||
369 | }; | ||
370 | |||
371 | if (GNUNET_NO == GNUNET_REST_handle_request (handle->rest_handle, | ||
372 | handlers, | ||
373 | &err, | ||
374 | handle)) | ||
375 | { | ||
376 | handle->response_code = err.error_code; | ||
377 | GNUNET_SCHEDULER_add_now (&do_error, handle); | ||
378 | } | ||
379 | } | ||
380 | |||
381 | |||
382 | /** | ||
383 | * Function processing the REST call | ||
384 | * | ||
385 | * @param method HTTP method | ||
386 | * @param url URL of the HTTP request | ||
387 | * @param data body of the HTTP request (optional) | ||
388 | * @param data_size length of the body | ||
389 | * @param proc callback function for the result | ||
390 | * @param proc_cls closure for callback function | ||
391 | * @return GNUNET_OK if request accepted | ||
392 | */ | ||
393 | static void | ||
394 | rest_process_request(struct GNUNET_REST_RequestHandle *rest_handle, | ||
395 | GNUNET_REST_ResultProcessor proc, | ||
396 | void *proc_cls) | ||
397 | { | ||
398 | struct RequestHandle *handle = GNUNET_new (struct RequestHandle); | ||
399 | |||
400 | handle->response_code = 0; | ||
401 | handle->timeout = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 60); | ||
402 | handle->proc_cls = proc_cls; | ||
403 | handle->proc = proc; | ||
404 | handle->rest_handle = rest_handle; | ||
405 | |||
406 | handle->url = GNUNET_strdup (rest_handle->url); | ||
407 | if (handle->url[strlen (handle->url)-1] == '/') | ||
408 | handle->url[strlen (handle->url)-1] = '\0'; | ||
409 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting...\n"); | ||
410 | handle->gns = GNUNET_GNS_connect (cfg); | ||
411 | init_cont(handle); | ||
412 | |||
413 | handle->timeout_task = | ||
414 | GNUNET_SCHEDULER_add_delayed (handle->timeout, | ||
415 | &do_error, | ||
416 | handle); | ||
417 | |||
418 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connected\n"); | ||
419 | } | ||
420 | |||
421 | |||
422 | /** | ||
423 | * Entry point for the plugin. | ||
424 | * | ||
425 | * @param cls Config info | ||
426 | * @return NULL on error, otherwise the plugin context | ||
427 | */ | ||
428 | void * | ||
429 | libgnunet_plugin_rest_gns_init (void *cls) | ||
430 | { | ||
431 | static struct Plugin plugin; | ||
432 | struct GNUNET_REST_Plugin *api; | ||
433 | |||
434 | cfg = cls; | ||
435 | if (NULL != plugin.cfg) | ||
436 | return NULL; /* can only initialize once! */ | ||
437 | memset (&plugin, 0, sizeof (struct Plugin)); | ||
438 | plugin.cfg = cfg; | ||
439 | api = GNUNET_new (struct GNUNET_REST_Plugin); | ||
440 | api->cls = &plugin; | ||
441 | api->name = GNUNET_REST_API_NS_GNS; | ||
442 | api->process_request = &rest_process_request; | ||
443 | GNUNET_asprintf (&allow_methods, | ||
444 | "%s, %s, %s, %s, %s", | ||
445 | MHD_HTTP_METHOD_GET, | ||
446 | MHD_HTTP_METHOD_POST, | ||
447 | MHD_HTTP_METHOD_PUT, | ||
448 | MHD_HTTP_METHOD_DELETE, | ||
449 | MHD_HTTP_METHOD_OPTIONS); | ||
450 | |||
451 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
452 | _("Gns REST API initialized\n")); | ||
453 | return api; | ||
454 | } | ||
455 | |||
456 | |||
457 | /** | ||
458 | * Exit point from the plugin. | ||
459 | * | ||
460 | * @param cls the plugin context (as returned by "init") | ||
461 | * @return always NULL | ||
462 | */ | ||
463 | void * | ||
464 | libgnunet_plugin_rest_gns_done (void *cls) | ||
465 | { | ||
466 | struct GNUNET_REST_Plugin *api = cls; | ||
467 | struct Plugin *plugin = api->cls; | ||
468 | plugin->cfg = NULL; | ||
469 | |||
470 | GNUNET_free_non_null (allow_methods); | ||
471 | GNUNET_free (api); | ||
472 | GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, | ||
473 | "Gns REST plugin is finished\n"); | ||
474 | return NULL; | ||
475 | } | ||
476 | |||
477 | /* end of plugin_rest_gns.c */ | ||
478 | |||