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_search.h"
46 #include "action_search_json.h"
47 #include "action_show_graph.h"
48 #include "action_show_graph_json.h"
49 #include "action_show_instance.h"
51 /* Include this last, so the macro magic of <fcgi_stdio.h> doesn't interfere
52 * with our own header files. */
53 #include <fcgiapp.h>
54 #include <fcgi_stdio.h>
56 struct action_s
57 {
58 const char *name;
59 int (*callback) (void);
60 };
61 typedef struct action_s action_t;
63 static int action_usage (void);
65 static const action_t actions[] =
66 {
67 { "graph", action_graph },
68 { "instance_data_json", action_instance_data_json },
69 { "graph_def_json", action_graph_def_json },
70 { "list_graphs", action_list_graphs },
71 { "list_graphs_json", action_list_graphs_json },
72 { "list_hosts", action_list_hosts },
73 { "search", action_search },
74 { "search_json", action_search_json },
75 { "show_graph", action_show_graph },
76 { "show_graph_json", action_show_graph_json },
77 { "show_instance", action_show_instance },
78 { "usage", action_usage }
79 };
80 static const size_t actions_num = sizeof (actions) / sizeof (actions[0]);
83 static int action_usage (void) /* {{{ */
84 {
85 size_t i;
87 printf ("Content-Type: text/plain\n\n");
89 printf ("Usage:\n"
90 "\n"
91 " Available actions:\n"
92 "\n");
94 for (i = 0; i < actions_num; i++)
95 printf (" * %s\n", actions[i].name);
97 printf ("\n");
99 return (0);
100 } /* }}} int action_usage */
102 static int handle_request (void) /* {{{ */
103 {
104 const char *action;
106 param_init ();
108 action = param ("action");
109 if (action == NULL)
110 {
111 return (action_list_graphs ());
112 }
113 else
114 {
115 size_t i;
116 int status = ENOENT;
118 gl_update (/* request_served = */ 0);
120 for (i = 0; i < actions_num; i++)
121 {
122 if (strcmp (action, actions[i].name) == 0)
123 {
124 status = (*actions[i].callback) ();
125 break;
126 }
127 }
129 if (i >= actions_num)
130 status = action_usage ();
132 /* Call finish before updating the graph list, so clients don't wait for
133 * the update to finish. */
134 FCGI_Finish ();
136 gl_update (/* request_served = */ 1);
138 return (status);
139 }
140 } /* }}} int handle_request */
142 static int run (void) /* {{{ */
143 {
144 while (FCGI_Accept() >= 0)
145 {
146 handle_request ();
147 param_finish ();
148 }
150 return (0);
151 } /* }}} int run */
153 int main (int argc, char **argv) /* {{{ */
154 {
155 int status;
157 argc = 0;
158 argv = NULL;
160 if (FCGX_IsCGI ())
161 status = handle_request ();
162 else
163 status = run ();
165 exit ((status == 0) ? EXIT_SUCCESS : EXIT_FAILURE);
166 } /* }}} int main */
168 /* vim: set sw=2 sts=2 et fdm=marker : */