1 /**
2 * collection4 - main.c
3 * Copyright (C) 2010 Florian octo Forster
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301 USA
19 *
20 * Authors:
21 * Florian octo Forster <ff at octo.it>
22 **/
24 #include <stdlib.h>
25 #include <stdio.h>
26 #include <string.h>
27 #include <strings.h>
28 #include <errno.h>
30 #include <sys/types.h>
31 #include <sys/stat.h>
32 #include <unistd.h>
33 #include <dirent.h>
35 #include "common.h"
36 #include "graph_list.h"
37 #include "utils_cgi.h"
39 #include "action_graph.h"
40 #include "action_instance_data_json.h"
41 #include "action_graph_def_json.h"
42 #include "action_list_graphs.h"
43 #include "action_list_graphs_json.h"
44 #include "action_list_hosts.h"
45 #include "action_list_hosts_json.h"
46 #include "action_search.h"
47 #include "action_search_json.h"
48 #include "action_show_graph.h"
49 #include "action_show_graph_json.h"
50 #include "action_show_instance.h"
52 /* Include this last, so the macro magic of <fcgi_stdio.h> doesn't interfere
53 * with our own header files. */
54 #include <fcgiapp.h>
55 #include <fcgi_stdio.h>
57 struct action_s
58 {
59 const char *name;
60 int (*callback) (void);
61 };
62 typedef struct action_s action_t;
64 static int action_usage (void);
66 static const action_t actions[] =
67 {
68 { "graph", action_graph },
69 { "instance_data_json", action_instance_data_json },
70 { "graph_def_json", action_graph_def_json },
71 { "list_graphs", action_list_graphs },
72 { "list_graphs_json", action_list_graphs_json },
73 { "list_hosts", action_list_hosts },
74 { "list_hosts_json", action_list_hosts_json },
75 { "search", action_search },
76 { "search_json", action_search_json },
77 { "show_graph", action_show_graph },
78 { "show_graph_json", action_show_graph_json },
79 { "show_instance", action_show_instance },
80 { "usage", action_usage }
81 };
82 static const size_t actions_num = sizeof (actions) / sizeof (actions[0]);
85 static int action_usage (void) /* {{{ */
86 {
87 size_t i;
89 printf ("Content-Type: text/plain\n\n");
91 printf ("Usage:\n"
92 "\n"
93 " Available actions:\n"
94 "\n");
96 for (i = 0; i < actions_num; i++)
97 printf (" * %s\n", actions[i].name);
99 printf ("\n");
101 return (0);
102 } /* }}} int action_usage */
104 static int handle_request (void) /* {{{ */
105 {
106 const char *action;
108 param_init ();
110 action = param ("action");
111 if (action == NULL)
112 {
113 return (action_list_graphs ());
114 }
115 else
116 {
117 size_t i;
118 int status = ENOENT;
120 gl_update (/* request_served = */ 0);
122 for (i = 0; i < actions_num; i++)
123 {
124 if (strcmp (action, actions[i].name) == 0)
125 {
126 status = (*actions[i].callback) ();
127 break;
128 }
129 }
131 if (i >= actions_num)
132 status = action_usage ();
134 /* Call finish before updating the graph list, so clients don't wait for
135 * the update to finish. */
136 FCGI_Finish ();
138 gl_update (/* request_served = */ 1);
140 return (status);
141 }
142 } /* }}} int handle_request */
144 static int run (void) /* {{{ */
145 {
146 while (FCGI_Accept() >= 0)
147 {
148 handle_request ();
149 param_finish ();
150 }
152 return (0);
153 } /* }}} int run */
155 int main (int argc, char **argv) /* {{{ */
156 {
157 int status;
159 argc = 0;
160 argv = NULL;
162 if (FCGX_IsCGI ())
163 status = handle_request ();
164 else
165 status = run ();
167 exit ((status == 0) ? EXIT_SUCCESS : EXIT_FAILURE);
168 } /* }}} int main */
170 /* vim: set sw=2 sts=2 et fdm=marker : */