include/class_ppdManager.inc

   1 <?php
   2
   3 class ppdManager
   4 {
   5         var $path= "";
   6         var $cachedList= array();
   7
   8         function ppdManager($path)
   9         {
  10                 $this->path= $path;
  11                 echo "Path set to $path<br>";
  12         }
  13
  14
  15         function findPPD($path)
  16         {
  17                 $list= array();
  18                 $currentDir= getcwd();
  19
  20                 $dh = opendir($path);
  21                 while(false !== ($file = readdir($dh))){
  22
  23                         /* Skip well known files */
  24                         if( $file == '.' || $file == '..'){
  25                                 continue;
  26                         }
  27
  28                         /* Recurse through all "common" directories */
  29                         if(is_dir($path.'/'.$file)){
  30                                 $list= array_merge($list, $this->findPPD($path.'/'.$file));
  31                                 continue;
  32                         }
  33
  34                         /* Check for PPD extension */
  35                         if (preg_match('/\.ppd$/i', $file)){
  36                                 $list[]= $path.'/'.$file;
  37                         }
  38                 }
  39
  40                 closedir($dh);
  41                 chdir ($currentDir);
  42                 return ($list);
  43         }
  44
  45
  46         function loadDescription($ppdFile)
  47         {
  48                 $model= "";
  49                 $manufacturer= "";
  50
  51                 $fh= fopen ($ppdFile, 'r');
  52                 while (!feof($fh)) {
  53
  54                         /* Read line */
  55                         $line= fgets($fh, 4096);
  56                         if (strlen($line) >= 4095){
  57                                 trigger_error(_('Parsing PPD file %s faild - line too long. Trailing characters have been ignored'), E_USER_WARNING);
  58                         }
  59
  60                         /* Extract interesting informations */
  61                         if (preg_match('/^\*Manufacturer:/i', $line)){
  62                                 $manufacturer= preg_replace('/^\*Manufacturer:\s+"([^"]+)".*$/i', '\1', $line);
  63                         }
  64                         if (preg_match('/^\*ModelName:/i', $line)){
  65                                 $model= preg_replace('/^\*ModelName:\s+"([^"]+)".*$/i', '\1', $line);
  66                         }
  67
  68                         /* Got everything we need? Skip rest for speed reasons... */
  69                         if ($model != '' && $manufacturer != ''){
  70                                 break;
  71                         }
  72                 }
  73                 fclose ($fh);
  74
  75                 /* Write out a notice that the PPD file seems to be broken if we can't
  76                    extract any usefull informations */
  77                 if ($model == '' || $manufacturer == ''){
  78                         trigger_error(sprintf(_('Parsing PPD file %s failed - no information found.'), $ppdFile), E_USER_WARNING);
  79                 }
  80
  81                 return ($manufacturer.' - '.$model);
  82         }
  83
  84
  85         function getPrinterList($reload= false)
  86         {
  87                 /* Load list of PPD files */
  88                 if (count($this->cachedList) == 0 || $reload){
  89                         $list= $this->findPPD($this->path);
  90
  91                         /* Load descriptive informations to build final printer list */
  92                         $this->cachedList= array();
  93                         foreach ($list as $ppdFile){
  94                                 $this->cachedList[$ppdFile]= $this->loadDescription($ppdFile);
  95                         }
  96
  97                 }
  98
  99                 return ($this->cachedList);
 100         }
 101
 102 }
 103
 104 ?>