1 /**
2 * collectd - src/utils_cmd_putnotif.c
3 * Copyright (C) 2008 Florian octo Forster
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 * Florian octo Forster <octo at collectd.org>
25 **/
27 #include "collectd.h"
28 #include "common.h"
29 #include "plugin.h"
31 #include "utils_parse_option.h"
32 #include "utils_cmd_putnotif.h"
34 #define print_to_socket(fh, ...) \
35 do { \
36 if (fprintf (fh, __VA_ARGS__) < 0) { \
37 char errbuf[1024]; \
38 WARNING ("handle_putnotif: failed to write to socket #%i: %s", \
39 fileno (fh), sstrerror (errno, errbuf, sizeof (errbuf))); \
40 return -1; \
41 } \
42 fflush(fh); \
43 } while (0)
45 static int set_option_severity (notification_t *n, const char *value)
46 {
47 if (strcasecmp (value, "Failure") == 0)
48 n->severity = NOTIF_FAILURE;
49 else if (strcasecmp (value, "Warning") == 0)
50 n->severity = NOTIF_WARNING;
51 else if (strcasecmp (value, "Okay") == 0)
52 n->severity = NOTIF_OKAY;
53 else
54 return (-1);
56 return (0);
57 } /* int set_option_severity */
59 static int set_option_time (notification_t *n, const char *value)
60 {
61 char *endptr = NULL;
62 double tmp;
64 errno = 0;
65 tmp = strtod (value, &endptr);
66 if ((errno != 0) /* Overflow */
67 || (endptr == value) /* Invalid string */
68 || (endptr == NULL) /* This should not happen */
69 || (*endptr != 0)) /* Trailing chars */
70 return (-1);
72 n->time = DOUBLE_TO_CDTIME_T (tmp);
74 return (0);
75 } /* int set_option_time */
77 static int set_option (notification_t *n, const char *option, const char *value)
78 {
79 if ((n == NULL) || (option == NULL) || (value == NULL))
80 return (-1);
82 DEBUG ("utils_cmd_putnotif: set_option (option = %s, value = %s);",
83 option, value);
85 /* Add a meta option in the form: <type>:<key> */
86 if (option[0] != '\0' && option[1] == ':') {
87 /* Refuse empty key */
88 if (option[2] == '\0')
89 return (1);
91 if (option[0] == 's')
92 return plugin_notification_meta_add_string (n, option + 2, value);
93 else
94 return (1);
95 }
97 if (strcasecmp ("severity", option) == 0)
98 return (set_option_severity (n, value));
99 else if (strcasecmp ("time", option) == 0)
100 return (set_option_time (n, value));
101 else if (strcasecmp ("message", option) == 0)
102 sstrncpy (n->message, value, sizeof (n->message));
103 else if (strcasecmp ("host", option) == 0)
104 sstrncpy (n->host, value, sizeof (n->host));
105 else if (strcasecmp ("plugin", option) == 0)
106 sstrncpy (n->plugin, value, sizeof (n->plugin));
107 else if (strcasecmp ("plugin_instance", option) == 0)
108 sstrncpy (n->plugin_instance, value, sizeof (n->plugin_instance));
109 else if (strcasecmp ("type", option) == 0)
110 sstrncpy (n->type, value, sizeof (n->type));
111 else if (strcasecmp ("type_instance", option) == 0)
112 sstrncpy (n->type_instance, value, sizeof (n->type_instance));
113 else
114 return (1);
116 return (0);
117 } /* int set_option */
119 int handle_putnotif (FILE *fh, char *buffer)
120 {
121 char *command;
122 notification_t n;
123 int status;
125 if ((fh == NULL) || (buffer == NULL))
126 return (-1);
128 DEBUG ("utils_cmd_putnotif: handle_putnotif (fh = %p, buffer = %s);",
129 (void *) fh, buffer);
131 command = NULL;
132 status = parse_string (&buffer, &command);
133 if (status != 0)
134 {
135 print_to_socket (fh, "-1 Cannot parse command.\n");
136 return (-1);
137 }
138 assert (command != NULL);
140 if (strcasecmp ("PUTNOTIF", command) != 0)
141 {
142 print_to_socket (fh, "-1 Unexpected command: `%s'.\n", command);
143 return (-1);
144 }
146 memset (&n, '\0', sizeof (n));
148 status = 0;
149 while (*buffer != 0)
150 {
151 char *key;
152 char *value;
154 status = parse_option (&buffer, &key, &value);
155 if (status != 0)
156 {
157 print_to_socket (fh, "-1 Malformed option.\n");
158 break;
159 }
161 status = set_option (&n, key, value);
162 if (status != 0)
163 {
164 print_to_socket (fh, "-1 Error parsing option `%s'\n", key);
165 break;
166 }
167 } /* for (i) */
169 /* Check for required fields and complain if anything is missing. */
170 if ((status == 0) && (n.severity == 0))
171 {
172 print_to_socket (fh, "-1 Option `severity' missing.\n");
173 status = -1;
174 }
175 if ((status == 0) && (n.time == 0))
176 {
177 print_to_socket (fh, "-1 Option `time' missing.\n");
178 status = -1;
179 }
180 if ((status == 0) && (strlen (n.message) == 0))
181 {
182 print_to_socket (fh, "-1 No message or message of length 0 given.\n");
183 status = -1;
184 }
186 /* If status is still zero the notification is fine and we can finally
187 * dispatch it. */
188 if (status == 0)
189 {
190 plugin_dispatch_notification (&n);
191 print_to_socket (fh, "0 Success\n");
192 }
194 return (0);
195 } /* int handle_putnotif */
197 /* vim: set shiftwidth=2 softtabstop=2 tabstop=8 : */