| 1 | 1 | simandl | <?php |
| 2 | | | // Run an external 'MRTG-compatible' script, and return it's values |
| 3 | | | // TARGET !/usr/local/bin/qmailmrtg7 t /var/log/qmail |
| 4 | | | |
| 5 | | | // MRTG Target scripts return 4 lines of text as output: |
| 6 | | | // 'Input' value - interpreted as a byte count (so multiplied by 8) |
| 7 | | | // 'Output' value - interpreted as a byte count (so multiplied by 8) |
| 8 | | | // 'uptime' as a string |
| 9 | | | // 'name of targer' as a string |
| 10 | | | // we ignore the last two |
| 11 | | | |
| 12 | | | // NOTE: Obviously, if you allow anyone to create maps, you are |
| 13 | | | // allowing them to run ANY COMMAND as the user that runs |
| 14 | | | // weathermap, by using this plugin. This might not be a |
| 15 | | | // good thing. |
| 16 | | | |
| 17 | | | // If you want to allow only one command, consider making |
| 18 | | | // your own datasource plugin which only runs that one command. |
| 19 | | | |
| 20 | | | |
| 21 | | | class WeatherMapDataSource_external extends WeatherMapDataSource { |
| 22 | | | |
| 23 | | | function Recognise($targetstring) |
| 24 | | | { |
| 25 | | | if(preg_match("/^!(.*)$/",$targetstring,$matches)) |
| 26 | | | { |
| 27 | | | return TRUE; |
| 28 | | | } |
| 29 | | | else |
| 30 | | | { |
| 31 | | | return FALSE; |
| 32 | | | } |
| 33 | | | } |
| 34 | | | |
| 35 | | | function ReadData($targetstring, &$map, &$item) |
| 36 | | | { |
| 37 | 85 | simandl | $data[IN] = NULL; |
| 38 | | | $data[OUT] = NULL; |
| 39 | 1 | simandl | $data_time = 0; |
| 40 | | | |
| 41 | | | if(preg_match("/^!(.*)$/",$targetstring,$matches)) |
| 42 | | | { |
| 43 | | | $command = $matches[1]; |
| 44 | | | |
| 45 | | | debug("ExternalScript ReadData: Running $command\n"); |
| 46 | | | // run the command here |
| 47 | | | if( ($pipe = popen($command,"r")) === false) |
| 48 | | | { |
| 49 | 85 | simandl | warn("ExternalScript ReadData: Failed to run external script. [WMEXT01]\n"); |
| 50 | 1 | simandl | } |
| 51 | | | else |
| 52 | | | { |
| 53 | | | $i=0; |
| 54 | | | while( ($i <5) && ! feof($pipe) ) |
| 55 | | | { |
| 56 | | | $lines[$i++] = fgets($pipe,1024); |
| 57 | | | } |
| 58 | | | pclose($pipe); |
| 59 | | | |
| 60 | | | if($i==5) |
| 61 | | | { |
| 62 | 85 | simandl | $data[IN] = floatval($lines[0]); |
| 63 | | | $data[OUT] = floatval($lines[1]); |
| 64 | | | |
| 65 | | | $item->add_hint("external_line1",$lines[0]); |
| 66 | | | $item->add_hint("external_line2",$lines[1]); |
| 67 | | | $item->add_hint("external_line3",$lines[2]); |
| 68 | | | $item->add_hint("external_line4",$lines[3]); |
| 69 | 1 | simandl | $data_time = time(); |
| 70 | | | } |
| 71 | | | else |
| 72 | | | { |
| 73 | 85 | simandl | warn("ExternalScript ReadData: Not enough lines read from external script ($i read, 4 expected) [WMEXT02]\n"); |
| 74 | 1 | simandl | } |
| 75 | | | } |
| 76 | | | } |
| 77 | | | |
| 78 | 85 | simandl | debug ("ExternalScript ReadData: Returning (".($data[IN]===NULL?'NULL':$data[IN]).",".($data[OUT]===NULL?'NULL':$data[OUT]).",$data_time)\n"); |
| 79 | | | |
| 80 | | | return( array($data[IN], $data[OUT], $data_time) ); |
| 81 | 1 | simandl | } |
| 82 | | | } |
| 83 | | | |
| 84 | | | // vim:ts=4:sw=4: |
| 85 | | | |
| 86 | | | ?> |
