diff options
Diffstat (limited to 'src/messenger/gnunet-service-messenger_member_store.c')
-rw-r--r-- | src/messenger/gnunet-service-messenger_member_store.c | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/src/messenger/gnunet-service-messenger_member_store.c b/src/messenger/gnunet-service-messenger_member_store.c new file mode 100644 index 000000000..2925965d4 --- /dev/null +++ b/src/messenger/gnunet-service-messenger_member_store.c | |||
@@ -0,0 +1,250 @@ | |||
1 | /* | ||
2 | This file is part of GNUnet. | ||
3 | Copyright (C) 2020--2021 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 "gnunet-service-messenger_member_store.h" | ||
27 | |||
28 | #include "gnunet-service-messenger_member.h" | ||
29 | #include "gnunet-service-messenger_service.h" | ||
30 | #include "gnunet-service-messenger_room.h" | ||
31 | |||
32 | void | ||
33 | init_member_store (struct GNUNET_MESSENGER_MemberStore *store, struct GNUNET_MESSENGER_SrvRoom *room) | ||
34 | { | ||
35 | GNUNET_assert ((store) && (room)); | ||
36 | |||
37 | store->room = room; | ||
38 | store->members = GNUNET_CONTAINER_multishortmap_create(8, GNUNET_NO); | ||
39 | } | ||
40 | |||
41 | static int | ||
42 | iterate_destroy_members (void *cls, const struct GNUNET_ShortHashCode *key, void *value) | ||
43 | { | ||
44 | struct GNUNET_MESSENGER_Member *member = value; | ||
45 | destroy_member(member); | ||
46 | return GNUNET_YES; | ||
47 | } | ||
48 | |||
49 | void | ||
50 | clear_member_store (struct GNUNET_MESSENGER_MemberStore *store) | ||
51 | { | ||
52 | GNUNET_assert ((store) && (store->members)); | ||
53 | |||
54 | GNUNET_CONTAINER_multishortmap_iterate (store->members, iterate_destroy_members, NULL); | ||
55 | GNUNET_CONTAINER_multishortmap_destroy (store->members); | ||
56 | } | ||
57 | |||
58 | |||
59 | struct GNUNET_MESSENGER_ContactStore* | ||
60 | get_member_contact_store (struct GNUNET_MESSENGER_MemberStore *store) | ||
61 | { | ||
62 | GNUNET_assert ((store) && (store->room)); | ||
63 | |||
64 | struct GNUNET_MESSENGER_SrvRoom *room = store->room; | ||
65 | |||
66 | return get_service_contact_store(room->service); | ||
67 | } | ||
68 | |||
69 | const struct GNUNET_HashCode* | ||
70 | get_member_store_key (const struct GNUNET_MESSENGER_MemberStore *store) | ||
71 | { | ||
72 | GNUNET_assert (store); | ||
73 | |||
74 | return get_room_key((const struct GNUNET_MESSENGER_SrvRoom*) store->room); | ||
75 | } | ||
76 | |||
77 | static int | ||
78 | callback_scan_for_members (void *cls, const char *filename) | ||
79 | { | ||
80 | struct GNUNET_MESSENGER_MemberStore *store = cls; | ||
81 | |||
82 | if (GNUNET_YES == GNUNET_DISK_directory_test (filename, GNUNET_YES)) | ||
83 | { | ||
84 | char *directory; | ||
85 | |||
86 | GNUNET_asprintf (&directory, "%s%c", filename, DIR_SEPARATOR); | ||
87 | |||
88 | load_member(store, directory); | ||
89 | |||
90 | GNUNET_free(directory); | ||
91 | } | ||
92 | |||
93 | return GNUNET_OK; | ||
94 | } | ||
95 | |||
96 | static int | ||
97 | iterate_load_next_member_sessions (void *cls, const struct GNUNET_ShortHashCode *id, void *value) | ||
98 | { | ||
99 | const char *sync_dir = cls; | ||
100 | |||
101 | struct GNUNET_MESSENGER_Member *member = value; | ||
102 | |||
103 | if (!member) | ||
104 | return GNUNET_YES; | ||
105 | |||
106 | char *member_dir; | ||
107 | GNUNET_asprintf (&member_dir, "%s%s%c", sync_dir, GNUNET_sh2s(id), DIR_SEPARATOR); | ||
108 | |||
109 | if (GNUNET_YES == GNUNET_DISK_directory_test (member_dir, GNUNET_YES)) | ||
110 | load_member_next_sessions (member, member_dir); | ||
111 | |||
112 | GNUNET_free(member_dir); | ||
113 | return GNUNET_YES; | ||
114 | } | ||
115 | |||
116 | static int | ||
117 | iterate_sync_member_contacts (void *cls, const struct GNUNET_ShortHashCode *id, void *value) | ||
118 | { | ||
119 | struct GNUNET_MESSENGER_Member *member = value; | ||
120 | |||
121 | if (!member) | ||
122 | return GNUNET_YES; | ||
123 | |||
124 | sync_member_contacts (member); | ||
125 | return GNUNET_YES; | ||
126 | } | ||
127 | |||
128 | void | ||
129 | load_member_store (struct GNUNET_MESSENGER_MemberStore *store, const char *directory) | ||
130 | { | ||
131 | GNUNET_assert ((store) && (directory)); | ||
132 | |||
133 | char *scan_dir; | ||
134 | GNUNET_asprintf (&scan_dir, "%s%s%c", directory, "members", DIR_SEPARATOR); | ||
135 | |||
136 | if (GNUNET_OK == GNUNET_DISK_directory_test (scan_dir, GNUNET_YES)) | ||
137 | GNUNET_DISK_directory_scan (scan_dir, callback_scan_for_members, store); | ||
138 | |||
139 | GNUNET_CONTAINER_multishortmap_iterate(store->members, iterate_load_next_member_sessions, scan_dir); | ||
140 | GNUNET_CONTAINER_multishortmap_iterate(store->members, iterate_sync_member_contacts, NULL); | ||
141 | |||
142 | GNUNET_free(scan_dir); | ||
143 | } | ||
144 | |||
145 | static int | ||
146 | iterate_save_members (void *cls, const struct GNUNET_ShortHashCode *id, void *value) | ||
147 | { | ||
148 | const char *save_dir = cls; | ||
149 | |||
150 | struct GNUNET_MESSENGER_Member *member = value; | ||
151 | |||
152 | if (!member) | ||
153 | return GNUNET_YES; | ||
154 | |||
155 | char *member_dir; | ||
156 | GNUNET_asprintf (&member_dir, "%s%s%c", save_dir, GNUNET_sh2s(id), DIR_SEPARATOR); | ||
157 | |||
158 | if ((GNUNET_YES == GNUNET_DISK_directory_test (member_dir, GNUNET_NO)) || | ||
159 | (GNUNET_OK == GNUNET_DISK_directory_create (member_dir))) | ||
160 | save_member(member, member_dir); | ||
161 | |||
162 | GNUNET_free(member_dir); | ||
163 | return GNUNET_YES; | ||
164 | } | ||
165 | |||
166 | void | ||
167 | save_member_store (struct GNUNET_MESSENGER_MemberStore *store, const char *directory) | ||
168 | { | ||
169 | GNUNET_assert ((store) && (directory)); | ||
170 | |||
171 | char* save_dir; | ||
172 | GNUNET_asprintf (&save_dir, "%s%s%c", directory, "members", DIR_SEPARATOR); | ||
173 | |||
174 | if ((GNUNET_YES == GNUNET_DISK_directory_test (save_dir, GNUNET_NO)) || | ||
175 | (GNUNET_OK == GNUNET_DISK_directory_create (save_dir))) | ||
176 | GNUNET_CONTAINER_multishortmap_iterate(store->members, iterate_save_members, save_dir); | ||
177 | |||
178 | GNUNET_free(save_dir); | ||
179 | } | ||
180 | |||
181 | struct GNUNET_MESSENGER_Member* | ||
182 | get_store_member (const struct GNUNET_MESSENGER_MemberStore *store, const struct GNUNET_ShortHashCode *id) | ||
183 | { | ||
184 | GNUNET_assert ((store) && (store->members) && (id)); | ||
185 | |||
186 | return GNUNET_CONTAINER_multishortmap_get (store->members, id); | ||
187 | } | ||
188 | |||
189 | struct GNUNET_MESSENGER_Member* | ||
190 | get_store_member_of (struct GNUNET_MESSENGER_MemberStore *store, const struct GNUNET_MESSENGER_Message *message) | ||
191 | { | ||
192 | if ((GNUNET_MESSENGER_KIND_INFO == message->header.kind) || | ||
193 | (GNUNET_MESSENGER_KIND_JOIN == message->header.kind)) | ||
194 | return add_store_member(store, &(message->header.sender_id)); | ||
195 | else | ||
196 | return get_store_member(store, &(message->header.sender_id)); | ||
197 | } | ||
198 | |||
199 | struct GNUNET_MESSENGER_Member* | ||
200 | add_store_member (struct GNUNET_MESSENGER_MemberStore *store, const struct GNUNET_ShortHashCode *id) | ||
201 | { | ||
202 | GNUNET_assert ((store) && (store->members)); | ||
203 | |||
204 | struct GNUNET_MESSENGER_Member *member = id? get_store_member(store, id) : NULL; | ||
205 | |||
206 | if (member) | ||
207 | return member; | ||
208 | |||
209 | member = create_member(store, id); | ||
210 | |||
211 | if (!member) | ||
212 | return NULL; | ||
213 | |||
214 | if (GNUNET_OK != GNUNET_CONTAINER_multishortmap_put (store->members, get_member_id(member), member, | ||
215 | GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_FAST)) | ||
216 | { | ||
217 | destroy_member(member); | ||
218 | return NULL; | ||
219 | } | ||
220 | |||
221 | return member; | ||
222 | } | ||
223 | |||
224 | struct GNUNET_MESSENGER_ClosureIterateMembers { | ||
225 | GNUNET_MESSENGER_MemberIteratorCallback it; | ||
226 | void *cls; | ||
227 | }; | ||
228 | |||
229 | static int | ||
230 | iterate_store_members_it (void *cls, const struct GNUNET_ShortHashCode *key, void *value) | ||
231 | { | ||
232 | struct GNUNET_MESSENGER_ClosureIterateMembers *iterate = cls; | ||
233 | struct GNUNET_MESSENGER_Member *member = value; | ||
234 | |||
235 | return iterate_member_sessions(member, iterate->it, iterate->cls); | ||
236 | } | ||
237 | |||
238 | int | ||
239 | iterate_store_members (struct GNUNET_MESSENGER_MemberStore *store, GNUNET_MESSENGER_MemberIteratorCallback it, | ||
240 | void* cls) | ||
241 | { | ||
242 | GNUNET_assert ((store) && (store->members) && (it)); | ||
243 | |||
244 | struct GNUNET_MESSENGER_ClosureIterateMembers iterate; | ||
245 | |||
246 | iterate.it = it; | ||
247 | iterate.cls = cls; | ||
248 | |||
249 | return GNUNET_CONTAINER_multishortmap_iterate(store->members, iterate_store_members_it, &iterate); | ||
250 | } | ||