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-rw-r--r--src/identity/identity_api_suffix_lookup.c229
1 files changed, 0 insertions, 229 deletions
diff --git a/src/identity/identity_api_suffix_lookup.c b/src/identity/identity_api_suffix_lookup.c
deleted file mode 100644
index 2667ddbc8..000000000
--- a/src/identity/identity_api_suffix_lookup.c
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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 identity/identity_api_suffix_lookup.c
23 * @brief api to lookup an ego
24 * @author Christian Grothoff
25 */
26#include "platform.h"
27#include "gnunet_util_lib.h"
28#include "gnunet_identity_service.h"
29#include "identity.h"
30
31#define LOG(kind, ...) GNUNET_log_from (kind, "identity-api", __VA_ARGS__)
32
33
34/**
35 * Handle for ego lookup.
36 */
37struct GNUNET_IDENTITY_EgoSuffixLookup
38{
39 /**
40 * Connection to service.
41 */
42 struct GNUNET_MQ_Handle *mq;
43
44 /**
45 * Suffix we are looking up.
46 */
47 char *suffix;
48
49 /**
50 * Function to call with the result.
51 */
52 GNUNET_IDENTITY_EgoSuffixCallback cb;
53
54 /**
55 * Closure for @e cb
56 */
57 void *cb_cls;
58};
59
60
61/**
62 * We received a result code from the service. Check the message
63 * is well-formed.
64 *
65 * @param cls closure
66 * @param rcm result message received
67 * @return #GNUNET_OK if the message is well-formed
68 */
69static int
70check_identity_result_code (void *cls, const struct ResultCodeMessage *rcm)
71{
72 (void) cls;
73 if (sizeof(*rcm) != htons (rcm->header.size))
74 GNUNET_MQ_check_zero_termination (rcm);
75 return GNUNET_OK;
76}
77
78
79/**
80 * We received a result code from the service.
81 *
82 * @param cls closure
83 * @param rcm result message received
84 */
85static void
86handle_identity_result_code (void *cls, const struct ResultCodeMessage *rcm)
87{
88 struct GNUNET_IDENTITY_EgoSuffixLookup *el = cls;
89
90 (void) rcm;
91 el->cb (el->cb_cls, NULL, NULL);
92 GNUNET_IDENTITY_ego_lookup_by_suffix_cancel (el);
93}
94
95
96/**
97 * Check validity of identity update message.
98 *
99 * @param cls closure
100 * @param um message received
101 * @return #GNUNET_OK if the message is well-formed
102 */
103static int
104check_identity_update (void *cls, const struct UpdateMessage *um)
105{
106 uint16_t size = ntohs (um->header.size);
107 uint16_t name_len = ntohs (um->name_len);
108 const char *str = (const char *) &um[1];
109
110 (void) cls;
111 if ((size != name_len + sizeof(struct UpdateMessage)) ||
112 ((0 != name_len) && ('\0' != str[name_len - 1])))
113 {
114 GNUNET_break (0);
115 return GNUNET_SYSERR;
116 }
117 return GNUNET_OK;
118}
119
120
121/**
122 * Handle identity update message.
123 *
124 * @param cls closure
125 * @param um message received
126 */
127static void
128handle_identity_update (void *cls, const struct UpdateMessage *um)
129{
130 struct GNUNET_IDENTITY_EgoSuffixLookup *el = cls;
131 uint16_t name_len = ntohs (um->name_len);
132 const char *str = (0 == name_len) ? NULL : (const char *) &um[1];
133
134 el->cb (el->cb_cls, &um->private_key, str);
135 GNUNET_IDENTITY_ego_lookup_by_suffix_cancel (el);
136}
137
138
139/**
140 * Generic error handler, called with the appropriate error code and
141 * the same closure specified at the creation of the message queue.
142 * Not every message queue implementation supports an error handler.
143 *
144 * @param cls closure with the `struct GNUNET_IDENTITY_EgoSuffixLookup *`
145 * @param error error code
146 */
147static void
148mq_error_handler (void *cls, enum GNUNET_MQ_Error error)
149{
150 struct GNUNET_IDENTITY_EgoSuffixLookup *el = cls;
151
152 (void) error;
153 el->cb (el->cb_cls, NULL, NULL);
154 GNUNET_IDENTITY_ego_lookup_by_suffix_cancel (el);
155}
156
157
158/**
159 * Lookup an ego by name.
160 *
161 * @param cfg configuration to use
162 * @param name name to look up
163 * @param cb callback to invoke with the result
164 * @param cb_cls closure for @a cb
165 * @return NULL on error
166 */
167struct GNUNET_IDENTITY_EgoSuffixLookup *
168GNUNET_IDENTITY_ego_lookup_by_suffix (const struct
169 GNUNET_CONFIGURATION_Handle *cfg,
170 const char *suffix,
171 GNUNET_IDENTITY_EgoSuffixCallback cb,
172 void *cb_cls)
173{
174 struct GNUNET_IDENTITY_EgoSuffixLookup *el;
175 struct GNUNET_MQ_Envelope *env;
176 struct GNUNET_MessageHeader *req;
177 size_t nlen;
178
179 GNUNET_assert (NULL != cb);
180 el = GNUNET_new (struct GNUNET_IDENTITY_EgoSuffixLookup);
181 el->cb = cb;
182 el->cb_cls = cb_cls;
183 {
184 struct GNUNET_MQ_MessageHandler handlers[] =
185 { GNUNET_MQ_hd_var_size (identity_result_code,
186 GNUNET_MESSAGE_TYPE_IDENTITY_RESULT_CODE,
187 struct ResultCodeMessage,
188 el),
189 GNUNET_MQ_hd_var_size (identity_update,
190 GNUNET_MESSAGE_TYPE_IDENTITY_UPDATE,
191 struct UpdateMessage,
192 el),
193 GNUNET_MQ_handler_end () };
194
195 el->mq =
196 GNUNET_CLIENT_connect (cfg, "identity", handlers, &mq_error_handler, el);
197 }
198 if (NULL == el->mq)
199 {
200 GNUNET_break (0);
201 GNUNET_free (el);
202 return NULL;
203 }
204 el->suffix = GNUNET_strdup (suffix);
205 nlen = strlen (suffix) + 1;
206 env = GNUNET_MQ_msg_extra (req, nlen,
207 GNUNET_MESSAGE_TYPE_IDENTITY_LOOKUP_BY_SUFFIX);
208 memcpy (&req[1], suffix, nlen);
209 GNUNET_MQ_send (el->mq, env);
210 return el;
211}
212
213
214/**
215 * Abort ego lookup attempt.
216 *
217 * @param el handle for lookup to abort
218 */
219void
220GNUNET_IDENTITY_ego_lookup_by_suffix_cancel (struct
221 GNUNET_IDENTITY_EgoSuffixLookup *el)
222{
223 GNUNET_MQ_destroy (el->mq);
224 GNUNET_free (el->suffix);
225 GNUNET_free (el);
226}
227
228
229/* end of identity_api_suffix_lookup.c */
generated by cgit v1.2.3 (git 2.39.1) at 2024-04-19 15:34:09 +0000