1 /**
2 * collection4 - action_show_instance.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 <errno.h>
28 #include <stdint.h>
29 #include <inttypes.h>
30 #include <assert.h>
32 #include "action_show_instance.h"
33 #include "common.h"
34 #include "graph.h"
35 #include "graph_ident.h"
36 #include "graph_instance.h"
37 #include "graph_list.h"
38 #include "utils_cgi.h"
40 #include <fcgiapp.h>
41 #include <fcgi_stdio.h>
43 #define OUTPUT_ERROR(...) do { \
44 printf ("Content-Type: text/plain\n\n"); \
45 printf (__VA_ARGS__); \
46 return (0); \
47 } while (0)
49 #define MAX_SHOW_GRAPHS 10
51 struct show_graph_data_s
52 {
53 graph_config_t *cfg;
54 graph_instance_t *inst;
55 int graph_count;
56 };
57 typedef struct show_graph_data_s show_graph_data_t;
59 static void show_breadcrump_field (const char *str, /* {{{ */
60 const char *field_name)
61 {
62 if ((str == NULL) || (str[0] == 0))
63 printf ("<em>none</em>");
64 else if (IS_ANY (str))
65 printf ("<em>any</em>");
66 else if (IS_ALL (str))
67 printf ("<em>all</em>");
68 else
69 {
70 char *str_html = html_escape (str);
72 if (field_name != NULL)
73 printf ("<a href=\"%s?action=search;q=%s:%s\">%s</a>",
74 script_name (), field_name, str_html, str_html);
75 else
76 printf ("<a href=\"%s?action=search;q=%s\">%s</a>",
77 script_name (), str_html, str_html);
79 free (str_html);
80 }
81 } /* }}} void show_breadcrump_field */
83 static int show_breadcrump (graph_config_t *cfg, /* {{{ */
84 graph_instance_t *inst)
85 {
86 graph_ident_t *ident;
87 char *prefix;
89 if (inst != NULL)
90 {
91 prefix = "Instance";
92 ident = inst_get_selector (inst);
93 }
94 else
95 {
96 prefix = "Graph";
97 ident = graph_get_selector (cfg);
98 }
100 printf ("<div class=\"breadcrump\">%s: "", prefix);
101 show_breadcrump_field (ident_get_host (ident), "host");
102 printf (" / ");
103 show_breadcrump_field (ident_get_plugin (ident), "plugin");
104 printf (" – ");
105 show_breadcrump_field (ident_get_plugin_instance (ident), "plugin_instance");
106 printf (" / ");
107 show_breadcrump_field (ident_get_type (ident), "type");
108 printf (" – ");
109 show_breadcrump_field (ident_get_type_instance (ident), "type_instance");
110 printf (""</div>\n");
112 ident_destroy (ident);
113 return (0);
114 } /* }}} int show_breadcrump */
116 static int show_time_selector (__attribute__((unused)) void *user_data) /* {{{ */
117 {
118 param_list_t *pl;
120 pl = param_create (/* query string = */ NULL);
121 param_set (pl, "begin", NULL);
122 param_set (pl, "end", NULL);
123 param_set (pl, "button", NULL);
125 printf ("<form action=\"%s\" method=\"get\">\n", script_name ());
127 param_print_hidden (pl);
129 printf (" <select name=\"begin\">\n"
130 " <option value=\"-3600\">Hour</option>\n"
131 " <option value=\"-86400\">Day</option>\n"
132 " <option value=\"-604800\">Week</option>\n"
133 " <option value=\"-2678400\">Month</option>\n"
134 " <option value=\"-31622400\">Year</option>\n"
135 " </select>\n"
136 " <input type=\"submit\" name=\"button\" value=\"Go\" />\n");
138 printf ("</form>\n");
140 param_destroy (pl);
142 return (0);
143 } /* }}} int show_time_selector */
145 static int left_menu (void *user_data) /* {{{ */
146 {
147 show_graph_data_t *data = user_data;
148 char params[1024];
149 graph_instance_t *inst;
150 graph_ident_t *ident;
151 const char *host;
153 memset (params, 0, sizeof (params));
154 graph_get_params (data->cfg, params, sizeof (params));
155 html_escape_buffer (params, sizeof (params));
157 inst = inst_get_selected (data->cfg);
158 ident = inst_get_selector (inst);
159 host = ident_get_host (ident);
160 if (IS_ANY (host))
161 host = NULL;
163 printf ("\n<ul class=\"menu left\">\n"
164 " <li><a href=\"%s?action=show_graph;%s\">All instances</a></li>\n"
165 " <li><a href=\"%s?action=list_graphs\">All graphs</a></li>\n",
166 script_name (), params,
167 script_name ());
168 if (host != NULL)
169 {
170 char host_html[1024];
171 char host_uri[1024];
173 html_escape_copy (host_html, host, sizeof (host_html));
174 uri_escape_copy (host_uri, host, sizeof (host_uri));
176 printf (" <li><a href=\"%s?action=search;q=host:%s\">Host "%s"</a></li>\n",
177 script_name (), host_uri, host_html);
178 }
179 printf ("</ul>\n");
181 host = NULL;
182 ident_destroy (ident);
184 return (0);
185 } /* }}} int left_menu */
187 static int show_instance_json (graph_config_t *cfg, /* {{{ */
188 graph_instance_t *inst,
189 time_t begin, time_t end, int index)
190 {
191 yajl_gen_config handler_config;
192 yajl_gen handler;
193 const unsigned char *json_buffer;
194 unsigned int json_buffer_length;
196 graph_ident_t *graph_selector;
197 graph_ident_t *inst_selector;
199 graph_selector = graph_get_selector (cfg);
200 if (graph_selector == NULL)
201 return (ENOMEM);
203 inst_selector = inst_get_selector (inst);
204 if (inst_selector == NULL)
205 {
206 ident_destroy (inst_selector);
207 return (ENOMEM);
208 }
210 memset (&handler_config, 0, sizeof (handler_config));
211 handler_config.beautify = 1;
212 handler_config.indentString = " ";
214 handler = yajl_gen_alloc2 (/* callback = */ NULL,
215 &handler_config,
216 /* alloc functions = */ NULL,
217 /* context = */ NULL);
218 if (handler == NULL)
219 {
220 ident_destroy (inst_selector);
221 ident_destroy (graph_selector);
222 return (-1);
223 }
225 yajl_gen_map_open (handler);
227 yajl_gen_string (handler,
228 (unsigned char *) "graph_selector",
229 (unsigned int) strlen ("graph_selector"));
230 ident_to_json (graph_selector, handler);
231 ident_destroy (graph_selector);
233 yajl_gen_string (handler,
234 (unsigned char *) "instance_selector",
235 (unsigned int) strlen ("instance_selector"));
236 ident_to_json (inst_selector, handler);
237 ident_destroy (inst_selector);
239 yajl_gen_string (handler,
240 (unsigned char *) "begin",
241 (unsigned int) strlen ("begin"));
242 yajl_gen_integer (handler, (long int) begin);
244 yajl_gen_string (handler,
245 (unsigned char *) "end",
246 (unsigned int) strlen ("end"));
247 yajl_gen_integer (handler, (long int) end);
249 yajl_gen_map_close (handler);
251 json_buffer = NULL;
252 json_buffer_length = 0;
253 yajl_gen_get_buf (handler, &json_buffer, &json_buffer_length);
255 if (json_buffer == NULL)
256 {
257 yajl_gen_free (handler);
258 return (EINVAL);
259 }
261 printf ("<div id=\"c4-graph%i\" class=\"graph-json\"></div>\n", index);
262 printf ("<script type=\"text/javascript\">c4.instances[%i] = %s;</script>\n",
263 index, (const char *) json_buffer);
265 yajl_gen_free (handler);
266 return (0);
267 } /* }}} int show_instance_json */
269 static int show_instance_cb (graph_config_t *cfg, /* {{{ */
270 graph_instance_t *inst,
271 void *user_data)
272 {
273 show_graph_data_t *data = user_data;
274 char title[128];
275 char descr[128];
276 char params[1024];
278 long begin;
279 long end;
280 char time_params[128];
281 int status;
283 memset (title, 0, sizeof (title));
284 graph_get_title (cfg, title, sizeof (title));
285 html_escape_buffer (title, sizeof (title));
287 memset (descr, 0, sizeof (descr));
288 inst_describe (cfg, inst, descr, sizeof (descr));
289 html_escape_buffer (descr, sizeof (descr));
291 memset (params, 0, sizeof (params));
292 inst_get_params (cfg, inst, params, sizeof (params));
293 html_escape_buffer (params, sizeof (params));
295 time_params[0] = 0;
296 begin = 0;
297 end = 0;
299 status = get_time_args (&begin, &end, /* now = */ NULL);
300 if (status == 0)
301 {
302 snprintf (time_params, sizeof (time_params), ";begin=%li;end=%li",
303 begin, end);
304 time_params[sizeof (time_params) - 1] = 0;
305 }
307 printf ("<h2>Instance "%s"</h2>\n", descr);
309 show_breadcrump (cfg, inst);
311 if (data->graph_count < MAX_SHOW_GRAPHS)
312 printf ("<div class=\"graph-img\"><img src=\"%s?action=graph;%s%s\" "
313 "title=\"%s / %s\" /></div>\n",
314 script_name (), params, time_params, title, descr);
315 else
316 printf ("<a href=\"%s?action=show_instance;%s\">Show graph "
317 ""%s / %s"</a>\n",
318 script_name (), params, title, descr);
320 show_instance_json (cfg, inst, begin, end, data->graph_count);
322 printf ("<div style=\"clear: both;\"><a href=\"%s?action=graph_data_json;%s%s\">"
323 "Get graph data as JSON</a></div>\n",
324 script_name (), params, time_params);
326 data->graph_count++;
328 return (0);
329 } /* }}} int show_instance_cb */
331 static int show_instance (void *user_data) /* {{{ */
332 {
333 show_graph_data_t *data = user_data;
334 char params[1024];
335 int status;
337 status = inst_get_all_selected (data->cfg,
338 /* callback = */ show_instance_cb, /* user data = */ data);
339 if (status != 0)
340 fprintf (stderr, "show_instance: inst_get_all_selected failed "
341 "with status %i\n", status);
343 memset (params, 0, sizeof (params));
344 graph_get_params (data->cfg, params, sizeof (params));
345 html_escape_buffer (params, sizeof (params));
347 printf ("<div style=\"clear: both;\"><a href=\"%s?action=graph_def_json;%s\">"
348 "Get graph definition as JSON</a></div>\n",
349 script_name (), params);
351 return (0);
352 } /* }}} int show_instance */
354 int action_show_instance (void) /* {{{ */
355 {
356 page_callbacks_t pg_callbacks = PAGE_CALLBACKS_INIT;
357 show_graph_data_t pg_data;
359 char tmp[128];
360 char title[128];
362 memset (&pg_data, 0, sizeof (pg_data));
363 pg_data.cfg = gl_graph_get_selected ();
364 if (pg_data.cfg == NULL)
365 OUTPUT_ERROR ("gl_graph_get_selected () failed.\n");
367 memset (tmp, 0, sizeof (tmp));
368 graph_get_title (pg_data.cfg, tmp, sizeof (tmp));
369 snprintf (title, sizeof (title), "Graph \"%s\"", tmp);
370 title[sizeof (title) - 1] = 0;
372 pg_callbacks.top_right = html_print_search_box;
373 pg_callbacks.middle_center = show_instance;
374 pg_callbacks.middle_left = left_menu;
375 pg_callbacks.middle_right = show_time_selector;
377 html_print_page (title, &pg_callbacks, &pg_data);
379 return (0);
380 } /* }}} int action_show_instance */
382 /* vim: set sw=2 sts=2 et fdm=marker : */