res_pjsip: Use reasonable buffer lengths for endpoint identification
[asterisk/asterisk.git] / res / res_stasis_mailbox.c
1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 2014, Digium, Inc.
5  *
6  * Jonathan Rose <jrose@digium.com>
7  *
8  * See http://www.asterisk.org for more information about
9  * the Asterisk project. Please do not directly contact
10  * any of the maintainers of this project for assistance;
11  * the project provides a web site, mailing lists and IRC
12  * channels for your use.
13  *
14  * This program is free software, distributed under the terms of
15  * the GNU General Public License Version 2. See the LICENSE file
16  * at the top of the source tree.
17  */
18
19 /*** MODULEINFO
20         <depend type="module">res_stasis</depend>
21         <depend type="module">res_mwi_external</depend>
22         <support_level>core</support_level>
23  ***/
24
25 #include "asterisk.h"
26
27 #include "asterisk/astdb.h"
28 #include "asterisk/astobj2.h"
29 #include "asterisk/module.h"
30 #include "asterisk/stasis_app_impl.h"
31 #include "asterisk/stasis_app_mailbox.h"
32 #include "asterisk/res_mwi_external.h"
33
34 /*! Number of hash buckets for mailboxes */
35 #define MAILBOX_BUCKETS 37
36
37 static struct ast_json *mailbox_to_json(
38         const struct ast_mwi_mailbox_object *mailbox)
39 {
40         return ast_json_pack("{s: s, s: i, s: i}",
41                 "name", ast_mwi_mailbox_get_id(mailbox),
42                 "old_messages", ast_mwi_mailbox_get_msgs_old(mailbox),
43                 "new_messages", ast_mwi_mailbox_get_msgs_new(mailbox));
44 }
45
46 enum stasis_mailbox_result stasis_app_mailbox_to_json(
47         const char *name, struct ast_json **json)
48 {
49         struct ast_json *mailbox_json;
50         const struct ast_mwi_mailbox_object *mailbox;
51
52         mailbox = ast_mwi_mailbox_get(name);
53         if (!mailbox) {
54                 return STASIS_MAILBOX_MISSING;
55         }
56
57         mailbox_json = mailbox_to_json(mailbox);
58         if (!mailbox_json) {
59                 ast_mwi_mailbox_unref(mailbox);
60                 return STASIS_MAILBOX_ERROR;
61         }
62
63         *json = mailbox_json;
64
65         return STASIS_MAILBOX_OK;
66 }
67
68 struct ast_json *stasis_app_mailboxes_to_json()
69 {
70         struct ast_json *array = ast_json_array_create();
71         struct ao2_container *mailboxes;
72         struct ao2_iterator iter;
73         const struct ast_mwi_mailbox_object *mailbox;
74
75         if (!array) {
76                 return NULL;
77         }
78
79         mailboxes = ast_mwi_mailbox_get_all();
80         if (!mailboxes) {
81                 ast_json_unref(array);
82                 return NULL;
83         }
84
85         iter = ao2_iterator_init(mailboxes, 0);
86         for (; (mailbox = ao2_iterator_next(&iter)); ast_mwi_mailbox_unref(mailbox)) {
87                 struct ast_json *appending = mailbox_to_json(mailbox);
88                 if (!appending || ast_json_array_append(array, appending)) {
89                         /* Failed to append individual mailbox to the array. Abort. */
90                         ast_json_unref(array);
91                         array = NULL;
92                         break;
93                 }
94         }
95         ao2_iterator_destroy(&iter);
96         ao2_ref(mailboxes, -1);
97
98         return array;
99 }
100
101 int stasis_app_mailbox_update(
102         const char *name, int old_messages, int new_messages)
103 {
104         struct ast_mwi_mailbox_object *mailbox;
105         int res = 0;
106
107         mailbox = ast_mwi_mailbox_alloc(name);
108         if (!mailbox) {
109                 return -1;
110         }
111         ast_mwi_mailbox_set_msgs_new(mailbox, new_messages);
112         ast_mwi_mailbox_set_msgs_old(mailbox, old_messages);
113         if (ast_mwi_mailbox_update(mailbox)) {
114                 res = -1;
115         }
116
117         ast_mwi_mailbox_unref(mailbox);
118
119         return res;
120 }
121
122 enum stasis_mailbox_result stasis_app_mailbox_delete(
123         const char *name)
124 {
125         const struct ast_mwi_mailbox_object *mailbox;
126
127         /* Make sure the mailbox actually exists before we delete it */
128         mailbox = ast_mwi_mailbox_get(name);
129         if (!mailbox) {
130                 return STASIS_MAILBOX_MISSING;
131         }
132
133         ast_mwi_mailbox_unref(mailbox);
134         mailbox = NULL;
135
136         /* Now delete the mailbox */
137         if (ast_mwi_mailbox_delete(name)) {
138                 return STASIS_MAILBOX_ERROR;
139         }
140
141         return STASIS_MAILBOX_OK;
142 }
143
144 static int load_module(void)
145 {
146         /* Must be done first */
147         ast_mwi_external_ref();
148
149         return AST_MODULE_LOAD_SUCCESS;
150 }
151
152 static int unload_module(void)
153 {
154         /* Must be done last */
155         ast_mwi_external_unref();
156
157         return 0;
158 }
159
160 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_GLOBAL_SYMBOLS, "Stasis application mailbox support",
161         .support_level = AST_MODULE_SUPPORT_CORE,
162         .load = load_module,
163         .unload = unload_module,
164         .nonoptreq = "res_stasis,res_mwi_external"
165 );