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