diff options
Diffstat (limited to 'src/service/messenger/gnunet-service-messenger_member_store.c')
-rw-r--r-- | src/service/messenger/gnunet-service-messenger_member_store.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/src/service/messenger/gnunet-service-messenger_member_store.c b/src/service/messenger/gnunet-service-messenger_member_store.c new file mode 100644 index 000000000..fc28babc4 --- /dev/null +++ b/src/service/messenger/gnunet-service-messenger_member_store.c | |||
@@ -0,0 +1,269 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2020--2022 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 Tobias Frisch | ||
22 | * @file src/messenger/gnunet-service-messenger_member_store.c | ||
23 | * @brief GNUnet MESSENGER service | ||
24 | */ | ||
25 | |||
26 | #include "platform.h" | ||
27 | #include "gnunet-service-messenger_member_store.h" | ||
28 | |||
29 | #include "gnunet-service-messenger_member.h" | ||
30 | #include "gnunet-service-messenger_service.h" | ||
31 | #include "gnunet-service-messenger_room.h" | ||
32 | |||
33 | void | ||
34 | init_member_store (struct GNUNET_MESSENGER_MemberStore *store, | ||
35 | struct GNUNET_MESSENGER_SrvRoom *room) | ||
36 | { | ||
37 | GNUNET_assert ((store) && (room)); | ||
38 | |||
39 | store->room = room; | ||
40 | store->members = GNUNET_CONTAINER_multishortmap_create(8, GNUNET_NO); | ||
41 | } | ||
42 | |||
43 | static int | ||
44 | iterate_destroy_members (void *cls, | ||
45 | const struct GNUNET_ShortHashCode *key, | ||
46 | void *value) | ||
47 | { | ||
48 | struct GNUNET_MESSENGER_Member *member = value; | ||
49 | destroy_member(member); | ||
50 | return GNUNET_YES; | ||
51 | } | ||
52 | |||
53 | void | ||
54 | clear_member_store (struct GNUNET_MESSENGER_MemberStore *store) | ||
55 | { | ||
56 | GNUNET_assert ((store) && (store->members)); | ||
57 | |||
58 | GNUNET_CONTAINER_multishortmap_iterate (store->members, iterate_destroy_members, NULL); | ||
59 | GNUNET_CONTAINER_multishortmap_destroy (store->members); | ||
60 | } | ||
61 | |||
62 | |||
63 | struct GNUNET_MESSENGER_ContactStore* | ||
64 | get_member_contact_store (struct GNUNET_MESSENGER_MemberStore *store) | ||
65 | { | ||
66 | GNUNET_assert ((store) && (store->room)); | ||
67 | |||
68 | struct GNUNET_MESSENGER_SrvRoom *room = store->room; | ||
69 | |||
70 | return get_service_contact_store(room->service); | ||
71 | } | ||
72 | |||
73 | const struct GNUNET_HashCode* | ||
74 | get_member_store_key (const struct GNUNET_MESSENGER_MemberStore *store) | ||
75 | { | ||
76 | GNUNET_assert (store); | ||
77 | |||
78 | return get_srv_room_key((const struct GNUNET_MESSENGER_SrvRoom*) store->room); | ||
79 | } | ||
80 | |||
81 | static int | ||
82 | callback_scan_for_members (void *cls, | ||
83 | const char *filename) | ||
84 | { | ||
85 | struct GNUNET_MESSENGER_MemberStore *store = cls; | ||
86 | |||
87 | if (GNUNET_YES == GNUNET_DISK_directory_test (filename, GNUNET_YES)) | ||
88 | { | ||
89 | char *directory; | ||
90 | |||
91 | GNUNET_asprintf (&directory, "%s%c", filename, DIR_SEPARATOR); | ||
92 | |||
93 | load_member(store, directory); | ||
94 | |||
95 | GNUNET_free(directory); | ||
96 | } | ||
97 | |||
98 | return GNUNET_OK; | ||
99 | } | ||
100 | |||
101 | static int | ||
102 | iterate_load_next_member_sessions (void *cls, | ||
103 | const struct GNUNET_ShortHashCode *id, | ||
104 | void *value) | ||
105 | { | ||
106 | const char *sync_dir = cls; | ||
107 | |||
108 | struct GNUNET_MESSENGER_Member *member = value; | ||
109 | |||
110 | if (!member) | ||
111 | return GNUNET_YES; | ||
112 | |||
113 | char *member_dir; | ||
114 | GNUNET_asprintf (&member_dir, "%s%s%c", sync_dir, GNUNET_sh2s(id), DIR_SEPARATOR); | ||
115 | |||
116 | if (GNUNET_YES == GNUNET_DISK_directory_test (member_dir, GNUNET_YES)) | ||
117 | load_member_next_sessions (member, member_dir); | ||
118 | |||
119 | GNUNET_free(member_dir); | ||
120 | return GNUNET_YES; | ||
121 | } | ||
122 | |||
123 | static int | ||
124 | iterate_sync_member_contacts (void *cls, | ||
125 | const struct GNUNET_ShortHashCode *id, | ||
126 | void *value) | ||
127 | { | ||
128 | struct GNUNET_MESSENGER_Member *member = value; | ||
129 | |||
130 | if (!member) | ||
131 | return GNUNET_YES; | ||
132 | |||
133 | sync_member_contacts (member); | ||
134 | return GNUNET_YES; | ||
135 | } | ||
136 | |||
137 | void | ||
138 | load_member_store (struct GNUNET_MESSENGER_MemberStore *store, | ||
139 | const char *directory) | ||
140 | { | ||
141 | GNUNET_assert ((store) && (directory)); | ||
142 | |||
143 | char *scan_dir; | ||
144 | GNUNET_asprintf (&scan_dir, "%s%s%c", directory, "members", DIR_SEPARATOR); | ||
145 | |||
146 | if (GNUNET_OK == GNUNET_DISK_directory_test (scan_dir, GNUNET_YES)) | ||
147 | GNUNET_DISK_directory_scan (scan_dir, callback_scan_for_members, store); | ||
148 | |||
149 | GNUNET_CONTAINER_multishortmap_iterate(store->members, iterate_load_next_member_sessions, scan_dir); | ||
150 | GNUNET_CONTAINER_multishortmap_iterate(store->members, iterate_sync_member_contacts, NULL); | ||
151 | |||
152 | GNUNET_free(scan_dir); | ||
153 | } | ||
154 | |||
155 | static int | ||
156 | iterate_save_members (void *cls, | ||
157 | const struct GNUNET_ShortHashCode *id, | ||
158 | void *value) | ||
159 | { | ||
160 | const char *save_dir = cls; | ||
161 | |||
162 | struct GNUNET_MESSENGER_Member *member = value; | ||
163 | |||
164 | if (!member) | ||
165 | return GNUNET_YES; | ||
166 | |||
167 | char *member_dir; | ||
168 | GNUNET_asprintf (&member_dir, "%s%s%c", save_dir, GNUNET_sh2s(id), DIR_SEPARATOR); | ||
169 | |||
170 | if ((GNUNET_YES == GNUNET_DISK_directory_test (member_dir, GNUNET_NO)) || | ||
171 | (GNUNET_OK == GNUNET_DISK_directory_create (member_dir))) | ||
172 | save_member(member, member_dir); | ||
173 | |||
174 | GNUNET_free(member_dir); | ||
175 | return GNUNET_YES; | ||
176 | } | ||
177 | |||
178 | void | ||
179 | save_member_store (struct GNUNET_MESSENGER_MemberStore *store, | ||
180 | const char *directory) | ||
181 | { | ||
182 | GNUNET_assert ((store) && (directory)); | ||
183 | |||
184 | char* save_dir; | ||
185 | GNUNET_asprintf (&save_dir, "%s%s%c", directory, "members", DIR_SEPARATOR); | ||
186 | |||
187 | if ((GNUNET_YES == GNUNET_DISK_directory_test (save_dir, GNUNET_NO)) || | ||
188 | (GNUNET_OK == GNUNET_DISK_directory_create (save_dir))) | ||
189 | GNUNET_CONTAINER_multishortmap_iterate(store->members, iterate_save_members, save_dir); | ||
190 | |||
191 | GNUNET_free(save_dir); | ||
192 | } | ||
193 | |||
194 | struct GNUNET_MESSENGER_Member* | ||
195 | get_store_member (const struct GNUNET_MESSENGER_MemberStore *store, | ||
196 | const struct GNUNET_ShortHashCode *id) | ||
197 | { | ||
198 | GNUNET_assert ((store) && (store->members) && (id)); | ||
199 | |||
200 | return GNUNET_CONTAINER_multishortmap_get (store->members, id); | ||
201 | } | ||
202 | |||
203 | struct GNUNET_MESSENGER_Member* | ||
204 | get_store_member_of (struct GNUNET_MESSENGER_MemberStore *store, | ||
205 | const struct GNUNET_MESSENGER_Message *message) | ||
206 | { | ||
207 | if ((GNUNET_MESSENGER_KIND_INFO == message->header.kind) || | ||
208 | (GNUNET_MESSENGER_KIND_JOIN == message->header.kind)) | ||
209 | return add_store_member(store, &(message->header.sender_id)); | ||
210 | else | ||
211 | return get_store_member(store, &(message->header.sender_id)); | ||
212 | } | ||
213 | |||
214 | struct GNUNET_MESSENGER_Member* | ||
215 | add_store_member (struct GNUNET_MESSENGER_MemberStore *store, | ||
216 | const struct GNUNET_ShortHashCode *id) | ||
217 | { | ||
218 | GNUNET_assert ((store) && (store->members)); | ||
219 | |||
220 | struct GNUNET_MESSENGER_Member *member = id? get_store_member(store, id) : NULL; | ||
221 | |||
222 | if (member) | ||
223 | return member; | ||
224 | |||
225 | member = create_member(store, id); | ||
226 | |||
227 | if (!member) | ||
228 | return NULL; | ||
229 | |||
230 | if (GNUNET_OK != GNUNET_CONTAINER_multishortmap_put (store->members, get_member_id(member), member, | ||
231 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST)) | ||
232 | { | ||
233 | destroy_member(member); | ||
234 | return NULL; | ||
235 | } | ||
236 | |||
237 | return member; | ||
238 | } | ||
239 | |||
240 | struct GNUNET_MESSENGER_ClosureIterateMembers { | ||
241 | GNUNET_MESSENGER_MemberIteratorCallback it; | ||
242 | void *cls; | ||
243 | }; | ||
244 | |||
245 | static int | ||
246 | iterate_store_members_it (void *cls, | ||
247 | const struct GNUNET_ShortHashCode *key, | ||
248 | void *value) | ||
249 | { | ||
250 | struct GNUNET_MESSENGER_ClosureIterateMembers *iterate = cls; | ||
251 | struct GNUNET_MESSENGER_Member *member = value; | ||
252 | |||
253 | return iterate_member_sessions(member, iterate->it, iterate->cls); | ||
254 | } | ||
255 | |||
256 | int | ||
257 | iterate_store_members (struct GNUNET_MESSENGER_MemberStore *store, | ||
258 | GNUNET_MESSENGER_MemberIteratorCallback it, | ||
259 | void* cls) | ||
260 | { | ||
261 | GNUNET_assert ((store) && (store->members) && (it)); | ||
262 | |||
263 | struct GNUNET_MESSENGER_ClosureIterateMembers iterate; | ||
264 | |||
265 | iterate.it = it; | ||
266 | iterate.cls = cls; | ||
267 | |||
268 | return GNUNET_CONTAINER_multishortmap_iterate(store->members, iterate_store_members_it, &iterate); | ||
269 | } | ||