1 /**
2 * collectd - src/notify_desktop.c
3 * Copyright (C) 2008 Sebastian Harl
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 * DEALINGS IN THE SOFTWARE.
22 *
23 * Authors:
24 * Sebastian Harl <sh at tokkee.org>
25 **/
27 /*
28 * This plugin sends desktop notifications to a notification daemon.
29 */
31 #include "collectd.h"
32 #include "common.h"
33 #include "plugin.h"
34 #include "configfile.h"
36 #include <glib.h>
37 #include <libnotify/notify.h>
39 #ifndef NOTIFY_CHECK_VERSION
40 # define NOTIFY_CHECK_VERSION(x,y,z) 0
41 #endif
43 #define log_info(...) INFO ("notify_desktop: " __VA_ARGS__)
44 #define log_warn(...) WARNING ("notify_desktop: " __VA_ARGS__)
45 #define log_err(...) ERROR ("notify_desktop: " __VA_ARGS__)
47 #define DEFAULT_TIMEOUT 5000
49 static int okay_timeout = DEFAULT_TIMEOUT;
50 static int warn_timeout = DEFAULT_TIMEOUT;
51 static int fail_timeout = DEFAULT_TIMEOUT;
53 static int set_timeout (oconfig_item_t *ci, int *timeout)
54 {
55 if ((0 != ci->children_num) || (1 != ci->values_num)
56 || (OCONFIG_TYPE_NUMBER != ci->values[0].type)) {
57 log_err ("%s expects a single number argument.", ci->key);
58 return 1;
59 }
61 *timeout = (int)ci->values[0].value.number;
62 if (0 > *timeout)
63 *timeout = DEFAULT_TIMEOUT;
64 return 0;
65 } /* set_timeout */
67 static int c_notify_config (oconfig_item_t *ci)
68 {
69 int i = 0;
71 for (i = 0; i < ci->children_num; ++i) {
72 oconfig_item_t *c = ci->children + i;
74 if (0 == strcasecmp (c->key, "OkayTimeout"))
75 set_timeout (c, &okay_timeout);
76 else if (0 == strcasecmp (c->key, "WarningTimeout"))
77 set_timeout (c, &warn_timeout);
78 else if (0 == strcasecmp (c->key, "FailureTimeout"))
79 set_timeout (c, &fail_timeout);
80 }
81 return 0;
82 } /* c_notify_config */
84 static int c_notify (const notification_t *n,
85 user_data_t __attribute__((unused)) *user_data)
86 {
87 NotifyNotification *notification = NULL;
88 NotifyUrgency urgency = NOTIFY_URGENCY_LOW;
89 int timeout = okay_timeout;
91 char summary[1024];
93 if (NOTIF_WARNING == n->severity) {
94 urgency = NOTIFY_URGENCY_NORMAL;
95 timeout = warn_timeout;
96 }
97 else if (NOTIF_FAILURE == n->severity) {
98 urgency = NOTIFY_URGENCY_CRITICAL;
99 timeout = fail_timeout;
100 }
102 ssnprintf (summary, sizeof (summary), "collectd %s notification",
103 (NOTIF_FAILURE == n->severity) ? "FAILURE"
104 : (NOTIF_WARNING == n->severity) ? "WARNING"
105 : (NOTIF_OKAY == n->severity) ? "OKAY" : "UNKNOWN");
107 notification = notify_notification_new (summary, n->message, NULL
108 #if NOTIFY_CHECK_VERSION (0, 7, 0)
109 );
110 #else
111 , NULL);
112 #endif
113 if (NULL == notification) {
114 log_err ("Failed to create a new notification.");
115 return -1;
116 }
118 notify_notification_set_urgency (notification, urgency);
119 notify_notification_set_timeout (notification, timeout);
121 if (! notify_notification_show (notification, NULL))
122 log_err ("Failed to display notification.");
124 g_object_unref (G_OBJECT (notification));
125 return 0;
126 } /* c_notify */
128 static int c_notify_shutdown (void)
129 {
130 plugin_unregister_init ("notify_desktop");
131 plugin_unregister_notification ("notify_desktop");
132 plugin_unregister_shutdown ("notify_desktop");
134 if (notify_is_initted ())
135 notify_uninit ();
136 return 0;
137 } /* c_notify_shutdown */
139 static int c_notify_init (void)
140 {
141 char *name = NULL;
142 char *vendor = NULL;
143 char *version = NULL;
144 char *spec_version = NULL;
146 if (! notify_init (PACKAGE_STRING)) {
147 log_err ("Failed to initialize libnotify.");
148 return -1;
149 }
151 if (! notify_get_server_info (&name, &vendor, &version, &spec_version))
152 log_warn ("Failed to get the notification server info. "
153 "Check if you have a notification daemon running.");
154 else {
155 log_info ("Found notification daemon: %s (%s) %s (spec version %s)",
156 name, vendor, version, spec_version);
157 free (name);
158 free (vendor);
159 free (version);
160 free (spec_version);
161 }
163 plugin_register_notification ("notify_desktop", c_notify,
164 /* user_data = */ NULL);
165 plugin_register_shutdown ("notify_desktop", c_notify_shutdown);
166 return 0;
167 } /* c_notify_init */
169 void module_register (void)
170 {
171 plugin_register_complex_config ("notify_desktop", c_notify_config);
172 plugin_register_init ("notify_desktop", c_notify_init);
173 return;
174 } /* module_register */
176 /* vim: set sw=4 ts=4 tw=78 noexpandtab : */