1fdef2f844e9f4d71f409c3a29b2f2e7bc017d20
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 #define SGD_FORMAT_JSON 0
52 #define SGD_FORMAT_RRD 1
54 struct show_graph_data_s
55 {
56 graph_config_t *cfg;
57 graph_instance_t *inst;
58 int graph_count;
59 int format;
60 };
61 typedef struct show_graph_data_s show_graph_data_t;
63 static void show_breadcrump_field (const char *str, /* {{{ */
64 const char *field_name)
65 {
66 if ((str == NULL) || (str[0] == 0))
67 printf ("<em>none</em>");
68 else if (IS_ANY (str))
69 printf ("<em>any</em>");
70 else if (IS_ALL (str))
71 printf ("<em>all</em>");
72 else
73 {
74 char *str_html = html_escape (str);
76 if (field_name != NULL)
77 printf ("<a href=\"%s?action=search;q=%s:%s\">%s</a>",
78 script_name (), field_name, str_html, str_html);
79 else
80 printf ("<a href=\"%s?action=search;q=%s\">%s</a>",
81 script_name (), str_html, str_html);
83 free (str_html);
84 }
85 } /* }}} void show_breadcrump_field */
87 static int show_breadcrump (graph_config_t *cfg, /* {{{ */
88 graph_instance_t *inst)
89 {
90 graph_ident_t *ident;
91 char *prefix;
93 if (inst != NULL)
94 {
95 prefix = "Instance";
96 ident = inst_get_selector (inst);
97 }
98 else
99 {
100 prefix = "Graph";
101 ident = graph_get_selector (cfg);
102 }
104 printf ("<div class=\"breadcrump\">%s: "", prefix);
105 show_breadcrump_field (ident_get_host (ident), "host");
106 printf (" / ");
107 show_breadcrump_field (ident_get_plugin (ident), "plugin");
108 printf (" – ");
109 show_breadcrump_field (ident_get_plugin_instance (ident), "plugin_instance");
110 printf (" / ");
111 show_breadcrump_field (ident_get_type (ident), "type");
112 printf (" – ");
113 show_breadcrump_field (ident_get_type_instance (ident), "type_instance");
114 printf (""</div>\n");
116 ident_destroy (ident);
117 return (0);
118 } /* }}} int show_breadcrump */
120 static int show_time_selector (__attribute__((unused)) void *user_data) /* {{{ */
121 {
122 param_list_t *pl;
124 pl = param_create (/* query string = */ NULL);
125 param_set (pl, "begin", NULL);
126 param_set (pl, "end", NULL);
127 param_set (pl, "button", NULL);
129 printf ("<form action=\"%s\" method=\"get\">\n", script_name ());
131 param_print_hidden (pl);
133 printf (" <select name=\"begin\">\n"
134 " <option value=\"-3600\">Hour</option>\n"
135 " <option value=\"-86400\">Day</option>\n"
136 " <option value=\"-604800\">Week</option>\n"
137 " <option value=\"-2678400\">Month</option>\n"
138 " <option value=\"-31622400\">Year</option>\n"
139 " </select>\n"
140 " <input type=\"submit\" name=\"button\" value=\"Go\" />\n");
142 printf ("</form>\n");
144 param_destroy (pl);
146 return (0);
147 } /* }}} int show_time_selector */
149 static int left_menu (void *user_data) /* {{{ */
150 {
151 show_graph_data_t *data = user_data;
152 char params[1024];
153 graph_instance_t *inst;
154 graph_ident_t *ident;
155 const char *host;
157 memset (params, 0, sizeof (params));
158 graph_get_params (data->cfg, params, sizeof (params));
159 html_escape_buffer (params, sizeof (params));
161 inst = inst_get_selected (data->cfg);
162 ident = inst_get_selector (inst);
163 host = ident_get_host (ident);
164 if (IS_ANY (host))
165 host = NULL;
167 printf ("\n<ul class=\"menu left\">\n"
168 " <li><a href=\"%s?action=show_graph;%s\">All instances</a></li>\n"
169 " <li><a href=\"%s?action=list_graphs\">All graphs</a></li>\n",
170 script_name (), params,
171 script_name ());
172 if (host != NULL)
173 {
174 char host_html[1024];
175 char host_uri[1024];
177 html_escape_copy (host_html, host, sizeof (host_html));
178 uri_escape_copy (host_uri, host, sizeof (host_uri));
180 printf (" <li><a href=\"%s?action=search;q=host:%s\">Host "%s"</a></li>\n",
181 script_name (), host_uri, host_html);
182 }
183 printf ("</ul>\n");
185 host = NULL;
186 ident_destroy (ident);
188 return (0);
189 } /* }}} int left_menu */
191 static int show_instance_json (graph_config_t *cfg, /* {{{ */
192 graph_instance_t *inst,
193 long begin, long end, int index)
194 {
195 yajl_gen_config handler_config;
196 yajl_gen handler;
197 const unsigned char *json_buffer;
198 unsigned int json_buffer_length;
200 graph_ident_t *graph_selector;
201 graph_ident_t *inst_selector;
203 graph_selector = graph_get_selector (cfg);
204 if (graph_selector == NULL)
205 return (ENOMEM);
207 inst_selector = inst_get_selector (inst);
208 if (inst_selector == NULL)
209 {
210 ident_destroy (inst_selector);
211 return (ENOMEM);
212 }
214 memset (&handler_config, 0, sizeof (handler_config));
215 handler_config.beautify = 1;
216 handler_config.indentString = " ";
218 handler = yajl_gen_alloc2 (/* callback = */ NULL,
219 &handler_config,
220 /* alloc functions = */ NULL,
221 /* context = */ NULL);
222 if (handler == NULL)
223 {
224 ident_destroy (inst_selector);
225 ident_destroy (graph_selector);
226 return (-1);
227 }
229 yajl_gen_map_open (handler);
231 yajl_gen_string (handler,
232 (unsigned char *) "graph_selector",
233 (unsigned int) strlen ("graph_selector"));
234 ident_to_json (graph_selector, handler);
235 ident_destroy (graph_selector);
237 yajl_gen_string (handler,
238 (unsigned char *) "instance_selector",
239 (unsigned int) strlen ("instance_selector"));
240 ident_to_json (inst_selector, handler);
241 ident_destroy (inst_selector);
243 yajl_gen_string (handler,
244 (unsigned char *) "begin",
245 (unsigned int) strlen ("begin"));
246 yajl_gen_integer (handler, begin);
248 yajl_gen_string (handler,
249 (unsigned char *) "end",
250 (unsigned int) strlen ("end"));
251 yajl_gen_integer (handler, end);
253 yajl_gen_map_close (handler);
255 json_buffer = NULL;
256 json_buffer_length = 0;
257 yajl_gen_get_buf (handler, &json_buffer, &json_buffer_length);
259 if (json_buffer == NULL)
260 {
261 yajl_gen_free (handler);
262 return (EINVAL);
263 }
265 printf ("<div id=\"c4-graph%i\" class=\"graph-json\"></div>\n", index);
266 printf ("<script type=\"text/javascript\">c4.instances[%i] = %s;</script>\n",
267 index, (const char *) json_buffer);
269 yajl_gen_free (handler);
270 return (0);
271 } /* }}} int show_instance_json */
273 static int show_instance_rrdtool (graph_config_t *cfg, /* {{{ */
274 graph_instance_t *inst,
275 long begin, long end, int index)
276 {
277 char title[128];
278 char descr[128];
279 char params[1024];
280 char time_params[128];
282 memset (title, 0, sizeof (title));
283 graph_get_title (cfg, title, sizeof (title));
284 html_escape_buffer (title, sizeof (title));
286 memset (descr, 0, sizeof (descr));
287 inst_describe (cfg, inst, descr, sizeof (descr));
288 html_escape_buffer (descr, sizeof (descr));
290 memset (params, 0, sizeof (params));
291 inst_get_params (cfg, inst, params, sizeof (params));
292 html_escape_buffer (params, sizeof (params));
294 snprintf (time_params, sizeof (time_params), ";begin=%li;end=%li",
295 begin, end);
296 time_params[sizeof (time_params) - 1] = 0;
298 if (index < MAX_SHOW_GRAPHS)
299 printf ("<div class=\"graph-img\"><img src=\"%s?action=graph;%s%s\" "
300 "title=\"%s / %s\" /></div>\n",
301 script_name (), params, time_params, title, descr);
302 else
303 printf ("<a href=\"%s?action=show_instance;%s\">Show graph "
304 ""%s / %s"</a>\n",
305 script_name (), params, title, descr);
307 #if 0
308 printf ("<div><a href=\"%s?action=graph_data_json;%s%s\">"
309 "Get graph data as JSON</a></div>\n",
310 script_name (), params, time_params);
311 #endif
313 return (0);
314 } /* }}} int show_instance_rrdtool */
316 static int show_instance_cb (graph_config_t *cfg, /* {{{ */
317 graph_instance_t *inst,
318 void *user_data)
319 {
320 show_graph_data_t *data = user_data;
321 char descr[128];
323 long begin;
324 long end;
325 int status;
327 memset (descr, 0, sizeof (descr));
328 inst_describe (cfg, inst, descr, sizeof (descr));
329 html_escape_buffer (descr, sizeof (descr));
331 begin = 0;
332 end = 0;
334 status = get_time_args (&begin, &end, /* now = */ NULL);
335 if (status != 0)
336 return (status);
338 printf ("<h2>Instance "%s"</h2>\n", descr);
340 show_breadcrump (cfg, inst);
342 if (data->format == SGD_FORMAT_RRD)
343 show_instance_rrdtool (cfg, inst, begin, end, data->graph_count);
344 else
345 show_instance_json (cfg, inst, begin, end, data->graph_count);
347 data->graph_count++;
349 return (0);
350 } /* }}} int show_instance_cb */
352 static int show_instance (void *user_data) /* {{{ */
353 {
354 show_graph_data_t *data = user_data;
355 /* char params[1024]; */
356 int status;
358 status = inst_get_all_selected (data->cfg,
359 /* callback = */ show_instance_cb, /* user data = */ data);
360 if (status != 0)
361 fprintf (stderr, "show_instance: inst_get_all_selected failed "
362 "with status %i\n", status);
364 #if 0
365 memset (params, 0, sizeof (params));
366 graph_get_params (data->cfg, params, sizeof (params));
367 html_escape_buffer (params, sizeof (params));
369 printf ("<div style=\"clear: both;\"><a href=\"%s?action=graph_def_json;%s\">"
370 "Get graph definition as JSON</a></div>\n",
371 script_name (), params);
372 #endif
374 return (0);
375 } /* }}} int show_instance */
377 int action_show_instance (void) /* {{{ */
378 {
379 page_callbacks_t pg_callbacks = PAGE_CALLBACKS_INIT;
380 show_graph_data_t pg_data;
382 char tmp[128];
383 char title[128];
384 char *format;
386 memset (&pg_data, 0, sizeof (pg_data));
387 pg_data.cfg = gl_graph_get_selected ();
388 if (pg_data.cfg == NULL)
389 OUTPUT_ERROR ("gl_graph_get_selected () failed.\n");
391 memset (tmp, 0, sizeof (tmp));
392 graph_get_title (pg_data.cfg, tmp, sizeof (tmp));
393 snprintf (title, sizeof (title), "Graph \"%s\"", tmp);
394 title[sizeof (title) - 1] = 0;
396 format = param ("format");
397 if ((format != NULL) && (strcasecmp ("RRD", format) == 0))
398 pg_data.format = SGD_FORMAT_RRD;
399 else
400 pg_data.format = SGD_FORMAT_JSON;
402 pg_callbacks.top_right = html_print_search_box;
403 pg_callbacks.middle_center = show_instance;
404 pg_callbacks.middle_left = left_menu;
405 pg_callbacks.middle_right = show_time_selector;
407 html_print_page (title, &pg_callbacks, &pg_data);
409 return (0);
410 } /* }}} int action_show_instance */
412 /* vim: set sw=2 sts=2 et fdm=marker : */