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                 if(is_dir($path)){
  11                 $this->path= $path;
  12                 }else{
  13                         print_red(sprintf(_("PPD manager : The specified path '%s' doesn't exists."),$path));
  14                         return (false);
  15                 }
  16         }
  17
  18
  19         function findPPD($path)
  20         {
  21                 $list= array();
  22                 $currentDir= getcwd();
  23
  24                 $dh = opendir($path);
  25                 while(false !== ($file = readdir($dh))){
  26
  27                         /* Skip well known files */
  28                         if( $file == '.' || $file == '..'){
  29                                 continue;
  30                         }
  31
  32                         /* Recurse through all "common" directories */
  33                         if(is_dir($path.'/'.$file)){
  34                                 $list= array_merge($list, $this->findPPD($path.'/'.$file));
  35                                 continue;
  36                         }
  37
  38                         /* Check for PPD extension */
  39                         if (preg_match('/\.ppd$/i', $file)){
  40                                 $list[]= $path.'/'.$file;
  41                         }
  42                 }
  43
  44                 closedir($dh);
  45                 chdir ($currentDir);
  46                 return ($list);
  47         }
  48
  49
  50         function updateAttribute($file, $section, $attribute, $value)
  51         {
  52                 $fsection= false;
  53                 $fattribute= false;
  54                 $section= preg_replace('/^\*/', '', $section);
  55                 $attribute= preg_replace('/^\*/', '', $attribute);
  56
  57                 $rp= fopen($file, "r");
  58                 $wp= fopen("$file.tmp", "w");
  59
  60                 while (!feof($rp)){
  61                         $line= fgets($rp, 1024);
  62
  63                         if (preg_match("/\*OpenGroup:*\s+\**$section\/*/", $line)){
  64                                 $fsection= true;
  65                                 fwrite ($wp, $line);
  66                                 continue;
  67                         }
  68
  69                         if ($fsection){
  70                                 if (preg_match("/^\*CloseGroup:*\s+\**$section\/*/", $line)){
  71                                         $fsection= false;
  72                                         fwrite ($wp, $line);
  73                                         continue;
  74                                 }
  75
  76                                 if (preg_match("/^\*OpenUI:*\s+\**$attribute\/*/", $line)){
  77                                         $fattribute= true;
  78                                         fwrite ($wp, $line);
  79                                         continue;
  80                                 }
  81
  82                                 if ($fattribute){
  83                                         if (preg_match("/^\*CloseUI:*\s+\**$attribute\/*/", $line)){
  84                                                 $fattribute= false;
  85                                                 fwrite ($wp, $line);
  86                                                 continue;
  87                                         }
  88
  89                                         if (preg_match("/^\*Default$attribute:*\s+/", $line)){
  90                                                 $line= "*Default$attribute: $value\n";
  91                                         }
  92                                 }
  93                         }
  94                         fwrite ($wp, $line);
  95                 }
  96
  97                 fclose($wp);
  98                 fclose($rp);
  99
 100                 copy("$file.tmp", "$file");
 101                 unlink("$file.tmp");
 102         }
 103
 104
 105         function saveProperties($ppdFile, $properties)
 106         {
 107                 foreach ($properties as $name => $section){
 108                         foreach ($section as $attribute => $value){
 109                                 if (is_array($value)){
 110                                         $this->updateAttribute($ppdFile, $name, $attribute, $value['_default']);
 111                                 }
 112                         }
 113                 }
 114         }
 115
 116
 117         function loadProperties($ppdFile)
 118         {
 119                 $group= "";
 120                 $option= "";
 121                 $properties= array();
 122
 123                 $fh= fopen ($ppdFile, 'r');
 124                 while (!feof($fh)) {
 125
 126                         /* Read line */
 127                         $line= fgets($fh, 256);
 128                         if (strlen($line) >= 256){
 129                                 trigger_error(_('Parsing PPD file %s failed - line too long. Trailing characters have been ignored'), E_USER_WARNING);
 130                         }
 131
 132                         /* Trigger for option groups */
 133                         if (preg_match('/^\*OpenGroup:/i', $line)){
 134
 135                                 /* Sanity checks */
 136                                 if ($group != ""){
 137                                         trigger_error(_('Nested groups are not supported!'), E_USER_WARNING);
 138                                         continue;
 139                                 }
 140                                 if (in_array($group, $properties)){
 141                                         trigger_error(_('Group name not unique!'), E_USER_WARNING);
 142                                         continue;
 143                                 }
 144
 145                                 // TODO: Symbol values are not supported yet!
 146                                 if (preg_match('/\^/', $line)){
 147                                         trigger_error(_('Symbol values are not supported yet!'), E_USER_WARNING);
 148                                 }
 149                                 $complete= preg_replace('@^\*OpenGroup:\s+(.*)$@i', '\1', $line);
 150                                 $complete= trim($complete, '"');
 151                                 if (preg_match('@/@', $complete)){
 152                                         $group= trim(preg_replace('@^\*OpenGroup:\s+"?([^/]+)/.*$@i', '\1', $line));
 153                                         $name = preg_replace('@^\*OpenGroup:\s+"?[^/]+/([^/]+).*$@i', '\1', $line);
 154                                 } else {
 155                                         $group= $complete;
 156                                         $name = $complete;
 157                                 }
 158                                 $properties[$group]= array('_name' => $name);
 159                                 continue;
 160                         }
 161                         if (preg_match("/^\*CloseGroup:\s+\"?$group\"?/i", $line)){
 162                                 $group= "";
 163                                 continue;
 164                         }
 165
 166                         /* Trigger for options */
 167                         if (preg_match('/^\*OpenUI\s+/i', $line)){
 168
 169                                 /* Sanity check */
 170                                 if ($option != ""){
 171                                         trigger_error(_('Nested options are not supported!'), E_USER_WARNING);
 172                                         continue;
 173                                 }
 174
 175                                 // TODO: Symbol values are not supported yet!
 176                                 if (preg_match('/\^/', $line)){
 177                                         trigger_error(_('Symbol values are not supported yet!'), E_USER_WARNING);
 178                                 }
 179                                 $complete= preg_replace('@^\*OpenUI\s+(.*)$@i', '\1', $line);
 180                                 $complete= trim($complete, '"');
 181                                 if (preg_match('@/@', $complete)){
 182                                         $option= trim(preg_replace('@^\*OpenUI\s+([^/]+)/.*$@i', '\1', $line));
 183                                         $name = trim(preg_replace('@^\*OpenUI\s+[^/]+/([^/]+).*$@i', '\1', $line));
 184                                 } else {
 185                                         $option= trim($complete);
 186                                         $name  = trim($complete);
 187                                 }
 188
 189                                 /* Extract option type */
 190                                 $type= trim(preg_replace('/^[^:]+:\s+/', '', $line));
 191                                 $name= preg_replace('/:.*$/', '', $name);
 192                                 $option= preg_replace('/:.*$/', '', $option);
 193
 194                                 // TODO: PickMany is not supported yet!
 195                                 if (preg_match('/PickMany/i', $type)){
 196                                         trigger_error(_('PickMany is not supported yet!'), E_USER_WARNING);
 197                                 }
 198
 199                                 $properties[$group][$option]= array('_name' => $name, '_type' => $type);
 200                                 continue;
 201                         }
 202                         /* Show interest for option parsing */
 203                         if ($option != ""){
 204
 205                                 $eoption= preg_replace('@\*@', '', $option);
 206
 207                                 /* Close section? */
 208                                 if (preg_match("@^\*CloseUI:\s+\*$eoption@i", $line)){
 209                                         $option= "";
 210                                         continue;
 211                                 }
 212
 213                                 /* Default value? */
 214                                 if (preg_match("@^\*Default$eoption:@", $line)){
 215                                         $c= preg_replace("@^\*Default$eoption:\s+@", "", $line);
 216                                         $properties[$group][$option]['_default']= trim(trim($c, '"'));
 217                                         continue;
 218                                 }
 219
 220                                 /* Possible value? */
 221                                 if (preg_match("@^\*$eoption\s+@", $line)){
 222                                 #*PageSize Letter/US Letter: "<>setpagedevice"
 223                                         $c= preg_replace("@^\*$eoption\s+([^/]+).*$@", "$1", $line);
 224                                         $d= preg_replace("@^\*$eoption\s+[^/]+/([^:]+).*$@", "$1", $line);
 225                                         $properties[$group][$option][trim($c)]= trim($d);
 226                                         continue;
 227                                 }
 228                         }
 229
 230                 }
 231                 fclose ($fh);
 232
 233                 return ($properties);
 234         }
 235
 236         function loadDescription($ppdFile)
 237         {
 238                 $model= "";
 239                 $manufacturer= "";
 240
 241                 $fh= fopen ($ppdFile, 'r');
 242                 while ((!feof($fh))&&($fh)) {
 243
 244                         /* Read line */
 245                         $line= fgets($fh, 256);
 246                         if (strlen($line) >= 256){
 247                                 trigger_error(_('Parsing PPD file %s failed - line too long. Trailing characters have been ignored'), E_USER_WARNING);
 248                         }
 249
 250                         /* Extract interesting informations */
 251                         if (preg_match('/^\*Manufacturer:/i', $line)){
 252                                 $manufacturer= preg_replace('/^\*Manufacturer:\s+"?([^"]+)"?.*$/i', '\1', $line);
 253                         }
 254                         if (preg_match('/^\*ModelName:/i', $line)){
 255                                 $model= preg_replace('/^\*ModelName:\s+"?([^"]+)"?.*$/i', '\1', $line);
 256                         }
 257
 258                         /* Got everything we need? Skip rest for speed reasons... */
 259                         if ($model != '' && $manufacturer != ''){
 260                                 break;
 261                         }
 262                 }
 263                 fclose ($fh);
 264
 265                 /* Write out a notice that the PPD file seems to be broken if we can't
 266                    extract any usefull informations */
 267                 if ($model == '' || $manufacturer == ''){
 268                         trigger_error(sprintf(_('Parsing PPD file %s failed - no information found.'), $ppdFile), E_USER_WARNING);
 269                 }
 270
 271                 return ($manufacturer.' - '.$model);
 272         }
 273
 274
 275         function getPrinterList($reload= false)
 276         {
 277                 /* Load list of PPD files */
 278                 if (count($this->cachedList) == 0 || $reload){
 279                         $list= $this->findPPD($this->path);
 280
 281                         /* Load descriptive informations to build final printer list */
 282                         $this->cachedList= array();
 283                         foreach ($list as $ppdFile){
 284                                 $this->cachedList[$ppdFile]= $this->loadDescription($ppdFile);
 285                         }
 286
 287                 }
 288
 289                 return ($this->cachedList);
 290         }
 291
 292 }
 293
 294 ?>