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weathermap

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[/] [lib/] [poller-common.php] - Blame information for rev 126

 

Line No. Rev Author Line
113simandl<?php
21simandl// common code used by the poller, the manual-run from the Cacti UI, and from the command-line manual-run.
3// this is the easiest way to keep it all consistent!
4 
513simandlfunction weathermap_memory_check($note="MEM")
6{
7 if(function_exists("memory_get_usage"))
8 {
9 $mem_used = nice_bandwidth(memory_get_usage());
10 $mem_allowed = ini_get("memory_limit");
11 debug("$note: memory_get_usage() says ".$mem_used."Bytes used. Limit is ".$mem_allowed."\n");
12 }
13}
14 
1585simandlfunction weathermap_cron_part($value,$checkstring)
16{
17 // XXX - this should really handle a few more crontab niceties like */5 or 3,5-9 but this will do for now
18 if($checkstring == '*') return(true);
19 if($checkstring == sprintf("%s",$value) ) return(true);
20 
21 if( preg_match("/\*\/(\d+)/",$checkstring, $matches))
22 {
23 $mod = $matches[1];
24 if( ($value % $mod ) == 0) return true;
25 }
26 
27 return (false);
28}
29 
30function weathermap_check_cron($time,$string)
31{
32 if($string == '') return(true);
33 if($string == '*') return(true);
34 
35 $lt = localtime($time, true);
36 list($minute,$hour,$wday,$day,$month) = preg_split('/\s+/',$string);
37 
38 $matched = true;
39 
40 $matched = $matched && weathermap_cron_part($lt['tm_min'],$minute);
41 $matched = $matched && weathermap_cron_part($lt['tm_hour'],$hour);
42 $matched = $matched && weathermap_cron_part($lt['tm_wday'],$wday);
43 $matched = $matched && weathermap_cron_part($lt['tm_mday'],$day);
44 $matched = $matched && weathermap_cron_part($lt['tm_mon']+1,$month);
45 
46 return($matched);
47}
48 
491simandlfunction weathermap_run_maps($mydir) {
50 global $config;
51 global $weathermap_debugging, $WEATHERMAP_VERSION;
5285simandl global $weathermap_map;
53 global $weathermap_warncount;
54 global $weathermap_poller_start_time;
551simandl 
56 include_once($mydir.DIRECTORY_SEPARATOR."HTML_ImageMap.class.php");
57 include_once($mydir.DIRECTORY_SEPARATOR."Weathermap.class.php");
58 
5985simandl $total_warnings = 0;
60 
61 $start_time = time();
62 if($weathermap_poller_start_time==0) $weathermap_poller_start_time = $start_time;
63 
641simandl $outdir = $mydir.DIRECTORY_SEPARATOR.'output';
65 $confdir = $mydir.DIRECTORY_SEPARATOR.'configs';
66 
67 $mapcount = 0;
68 
69 // take our debugging cue from the poller - turn on Poller debugging to get weathermap debugging
70 if (read_config_option("log_verbosity") >= POLLER_VERBOSITY_DEBUG)
71 {
72 $weathermap_debugging = TRUE;
73 $mode_message = "DEBUG mode is on";
74 }
75 else
76 {
77 $mode_message = "Normal logging mode. Turn on DEBUG in Cacti for more information";
78 }
79 $quietlogging = read_config_option("weathermap_quiet_logging");
80 // moved this outside the module_checks, so there should always be something in the logs!
8185simandl if($quietlogging==0) cacti_log("Weathermap $WEATHERMAP_VERSION starting - $mode_message\n",true,"WEATHERMAP");
821simandl 
83 if(module_checks())
84 {
8513simandl weathermap_memory_check("MEM Initial");
861simandl // move to the weathermap folder so all those relatives paths don't *have* to be absolute
87 $orig_cwd = getcwd();
88 chdir($mydir);
89 
9085simandl db_execute("replace into settings values('weathermap_last_start_time','".mysql_escape_string(time())."')");
91 
921simandl // first, see if the output directory even exists
93 if(is_dir($outdir))
94 {
95 // next, make sure that we stand a chance of writing files
96 //// $testfile = realpath($outdir."weathermap.permissions.test");
97 $testfile = $outdir.DIRECTORY_SEPARATOR."weathermap.permissions.test";
98 $testfd = fopen($testfile, 'w');
99 if($testfd)
100 {
101 fclose($testfd);
102 unlink($testfile);
103 
10485simandl $queryrows = db_fetch_assoc("select m.*, g.name as groupname from weathermap_maps m,weathermap_groups g where m.group_id=g.id and active='on' order by sortorder,id");
1051simandl 
106 if( is_array($queryrows) )
107 {
108 debug("Iterating all maps.");
109 
110 $imageformat = strtolower(read_config_option("weathermap_output_format"));
11185simandl $rrdtool_path = read_config_option("path_rrdtool");
1121simandl 
113 foreach ($queryrows as $map) {
11485simandl // reset the warning counter
115 $weathermap_warncount=0;
116 // this is what will prefix log entries for this map
117 $weathermap_map = "[Map ".$map['id']."] ".$map['configfile'];
118 
119 debug("FIRST TOUCH\n");
120 
121 if(weathermap_check_cron($weathermap_poller_start_time,$map['schedule']))
1221simandl {
12385simandl $mapfile = $confdir.DIRECTORY_SEPARATOR.$map['configfile'];
124 $htmlfile = $outdir.DIRECTORY_SEPARATOR.$map['filehash'].".html";
125 $imagefile = $outdir.DIRECTORY_SEPARATOR.$map['filehash'].".".$imageformat;
126 $thumbimagefile = $outdir.DIRECTORY_SEPARATOR.$map['filehash'].".thumb.".$imageformat;
1271simandl 
12885simandl if(file_exists($mapfile))
129 {
130 if($quietlogging==0) warn("Map: $mapfile -> $htmlfile & $imagefile\n",TRUE);
131 db_execute("replace into settings values('weathermap_last_started_file','".mysql_escape_string($weathermap_map)."')");
132 $map_start = time();
133 weathermap_memory_check("MEM starting $mapcount");
134 $wmap = new Weathermap;
135 $wmap->context = "cacti";
1361simandl 
13785simandl // we can grab the rrdtool path from Cacti's config, in this case
138 $wmap->rrdtool = $rrdtool_path;
1391simandl 
14085simandl $wmap->ReadConfig($mapfile);
1411simandl 
14285simandl $wmap->add_hint("mapgroup",$map['groupname']);
143 $wmap->add_hint("mapgroupextra",($map['group_id'] ==1 ? "" : $map['groupname'] ));
1441simandl 
14585simandl # in the order of precedence - global extras, group extras, and finally map extras
146 $queries = array();
147 $queries[] = "select * from weathermap_settings where mapid=0 and groupid=0";
148 $queries[] = "select * from weathermap_settings where mapid=0 and groupid=".intval($map['group_id']);
149 $queries[] = "select * from weathermap_settings where mapid=".intval($map['id']);
150 
151 foreach ($queries as $sql)
1521simandl {
15385simandl $settingrows = db_fetch_assoc($sql);
154 if( is_array($settingrows) && count($settingrows) > 0 )
155 {
156 
157 foreach ($settingrows as $setting)
158 {
159 if($setting['mapid']==0 && $setting['groupid']==0)
160 {
161 debug("Setting additional (all maps) option: ".$setting['optname']." to '".$setting['optvalue']."'\n");
162 $wmap->add_hint($setting['optname'],$setting['optvalue']);
163 }
164 elseif($setting['groupid']!=0)
165 {
166 debug("Setting additional (all maps in group) option: ".$setting['optname']." to '".$setting['optvalue']."'\n");
167 $wmap->add_hint($setting['optname'],$setting['optvalue']);
168 }
169 else
170 { debug("Setting additional map-global option: ".$setting['optname']." to '".$setting['optvalue']."'\n");
171 $wmap->add_hint($setting['optname'],$setting['optvalue']);
172 }
173 }
174 }
175 }
176 
177 weathermap_memory_check("MEM postread $mapcount");
178 $wmap->ReadData();
179 weathermap_memory_check("MEM postdata $mapcount");
180 
181 // why did I change this before? It's useful...
182 // $wmap->imageuri = $config['url_path'].'/plugins/weathermap/output/weathermap_'.$map['id'].".".$imageformat;
183 $wmap->imageuri = 'weathermap-cacti-plugin.php?action=viewimage&id='.$map['filehash']."&time=".time();
184 
185 if($quietlogging==0) warn("About to write image file. If this is the last message in your log, increase memory_limit in php.ini [WMPOLL01]\n",TRUE);
186 weathermap_memory_check("MEM pre-render $mapcount");
187 
188 $wmap->DrawMap($imagefile,$thumbimagefile,read_config_option("weathermap_thumbsize"));
189 
190 if($quietlogging==0) warn("Wrote map to $imagefile and $thumbimagefile\n",TRUE);
191 $fd = @fopen($htmlfile, 'w');
192 if($fd != FALSE)
193 {
194 fwrite($fd, $wmap->MakeHTML('weathermap_'.$map['filehash'].'_imap'));
195 fclose($fd);
196 debug("Wrote HTML to $htmlfile");
1971simandl }
198 else
199 {
20085simandl if(file_exists($htmlfile))
201 {
202 warn("Failed to overwrite $htmlfile - permissions of existing file are wrong? [WMPOLL02]\n");
203 }
204 else
205 {
206 warn("Failed to create $htmlfile - permissions of output directory are wrong? [WMPOLL03]\n");
207 }
2081simandl }
20985simandl 
210 $processed_title = $wmap->ProcessString($wmap->title,$wmap);
211 
212 db_execute("update weathermap_maps set titlecache='".mysql_real_escape_string($processed_title)."' where id=".intval($map['id']));
213 if(intval($wmap->thumb_width) > 0)
214 {
215 db_execute("update weathermap_maps set thumb_width=".intval($wmap->thumb_width).", thumb_height=".intval($wmap->thumb_height)." where id=".intval($map['id']));
216 }
217 
218 unset($wmap);
219 $map_duration = time() - $map_start;
220 debug("TIME: $mapfile took $map_duration seconds.\n");
221 weathermap_memory_check("MEM after $mapcount");
222 $mapcount++;
223 db_execute("replace into settings values('weathermap_last_finished_file','".mysql_escape_string($weathermap_map)."')");
2241simandl }
22585simandl else
226 {
227 warn("Mapfile $mapfile is not readable or doesn't exist [WMPOLL04]\n");
228 }
229 db_execute("update weathermap_maps set warncount=".intval($weathermap_warncount)." where id=".intval($map['id']));
230 $total_warnings += $weathermap_warncount;
231 $weathermap_warncount = 0;
232 $weathermap_map="";
2331simandl }
234 else
235 {
23685simandl debug("Skipping ".$map['id']." (".$map['configfile'].") due to schedule.\n");
2371simandl }
238 }
23985simandl debug("Iterated all $mapcount maps.\n");
2401simandl }
241 else
242 {
24385simandl if($quietlogging==0) warn("No activated maps found. [WMPOLL05]\n");
2441simandl }
245 }
246 else
247 {
24885simandl warn("Output directory ($outdir) isn't writable (tried to create '$testfile'). No maps created. You probably need to make it writable by the poller process (like you did with the RRA directory) [WMPOLL06]\n");
2491simandl }
250 }
251 else
252 {
25385simandl warn("Output directory ($outdir) doesn't exist!. No maps created. You probably need to create that directory, and make it writable by the poller process (like you did with the RRA directory) [WMPOLL07]\n");
2541simandl }
25513simandl weathermap_memory_check("MEM Final");
2561simandl chdir($orig_cwd);
25785simandl $duration = time() - $start_time;
258 
259 $stats_string = date(DATE_RFC822) . ": $mapcount maps were run in $duration seconds with $total_warnings warnings.";
260 if($quietlogging==0) warn("STATS: Weathermap $WEATHERMAP_VERSION run complete - $stats_string\n", TRUE);
261 db_execute("replace into settings values('weathermap_last_stats','".mysql_escape_string($stats_string)."')");
262 db_execute("replace into settings values('weathermap_last_finish_time','".mysql_escape_string(time())."')");
2631simandl }
264 else
265 {
26685simandl warn("Required modules for PHP Weathermap $WEATHERMAP_VERSION were not present. Not running. [WMPOLL08]\n");
2671simandl }
268}
269 
270// vim:ts=4:sw=4:
271?>

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