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                 echo "Move $file.tmp to $file<br>";
  95         }
  96
  97
  98         function saveProperties($ppdFile, $properties)
  99         {
 100                 foreach ($properties as $name => $section){
 101                         foreach ($section as $attribute => $value){
 102                                 if (is_array($value)){
 103                                         $this->updateAttribute($ppdFile, $name, $attribute, $value['_default']);
 104                                 }
 105                         }
 106                 }
 107         }
 108
 109
 110         function loadProperties($ppdFile)
 111         {
 112                 $group= "";
 113                 $option= "";
 114                 $properties= array();
 115
 116                 $fh= fopen ($ppdFile, 'r');
 117                 while (!feof($fh)) {
 118
 119                         /* Read line */
 120                         $line= fgets($fh, 256);
 121                         if (strlen($line) >= 256){
 122                                 trigger_error(_('Parsing PPD file %s failed - line too long. Trailing characters have been ignored'), E_USER_WARNING);
 123                         }
 124
 125                         /* Trigger for option groups */
 126                         if (preg_match('/^\*OpenGroup:/i', $line)){
 127
 128                                 /* Sanity checks */
 129                                 if ($group != ""){
 130                                         trigger_error(_('Nested groups are not supported!'), E_USER_WARNING);
 131                                         continue;
 132                                 }
 133                                 if (in_array($group, $properties)){
 134                                         trigger_error(_('Group name not unique!'), E_USER_WARNING);
 135                                         continue;
 136                                 }
 137
 138                                 // TODO: Symbol values are not supported yet!
 139                                 if (preg_match('/\^/', $line)){
 140                                         trigger_error(_('Symbol values are not supported yet!'), E_USER_WARNING);
 141                                 }
 142                                 $complete= preg_replace('@^\*OpenGroup:\s+(.*)$@i', '\1', $line);
 143                                 $complete= trim($complete, '"');
 144                                 if (preg_match('@/@', $complete)){
 145                                         $group= trim(preg_replace('@^\*OpenGroup:\s+"?([^/]+)/.*$@i', '\1', $line));
 146                                         $name = preg_replace('@^\*OpenGroup:\s+"?[^/]+/([^/]+).*$@i', '\1', $line);
 147                                 } else {
 148                                         $group= $complete;
 149                                         $name = $complete;
 150                                 }
 151                                 $properties[$group]= array('_name' => $name);
 152                                 continue;
 153                         }
 154                         if (preg_match("/^\*CloseGroup:\s+\"?$group\"?/i", $line)){
 155                                 $group= "";
 156                                 continue;
 157                         }
 158
 159                         /* Trigger for options */
 160                         if (preg_match('/^\*OpenUI\s+/i', $line)){
 161
 162                                 /* Sanity check */
 163                                 if ($option != ""){
 164                                         trigger_error(_('Nested options are not supported!'), E_USER_WARNING);
 165                                         continue;
 166                                 }
 167
 168                                 // TODO: Symbol values are not supported yet!
 169                                 if (preg_match('/\^/', $line)){
 170                                         trigger_error(_('Symbol values are not supported yet!'), E_USER_WARNING);
 171                                 }
 172                                 $complete= preg_replace('@^\*OpenUI\s+(.*)$@i', '\1', $line);
 173                                 $complete= trim($complete, '"');
 174                                 if (preg_match('@/@', $complete)){
 175                                         $option= trim(preg_replace('@^\*OpenUI\s+([^/]+)/.*$@i', '\1', $line));
 176                                         $name = trim(preg_replace('@^\*OpenUI\s+[^/]+/([^/]+).*$@i', '\1', $line));
 177                                 } else {
 178                                         $option= trim($complete);
 179                                         $name  = trim($complete);
 180                                 }
 181
 182                                 /* Extract option type */
 183                                 $type= trim(preg_replace('/^[^:]+:\s+/', '', $line));
 184                                 $name= preg_replace('/:.*$/', '', $name);
 185                                 $option= preg_replace('/:.*$/', '', $option);
 186
 187                                 // TODO: PickMany is not supported yet!
 188                                 if (preg_match('/PickMany/i', $type)){
 189                                         trigger_error(_('PickMany is not supported yet!'), E_USER_WARNING);
 190                                 }
 191
 192                                 $properties[$group][$option]= array('_name' => $name, '_type' => $type);
 193                                 continue;
 194                         }
 195                         /* Show interest for option parsing */
 196                         if ($option != ""){
 197
 198                                 $eoption= preg_replace('@\*@', '', $option);
 199
 200                                 /* Close section? */
 201                                 if (preg_match("@^\*CloseUI:\s+\*$eoption@i", $line)){
 202                                         $option= "";
 203                                         continue;
 204                                 }
 205
 206                                 /* Default value? */
 207                                 if (preg_match("@^\*Default$eoption:@", $line)){
 208                                         $c= preg_replace("@^\*Default$eoption:\s+@", "", $line);
 209                                         $properties[$group][$option]['_default']= trim(trim($c, '"'));
 210                                         continue;
 211                                 }
 212
 213                                 /* Possible value? */
 214                                 if (preg_match("@^\*$eoption\s+@", $line)){
 215                                 #*PageSize Letter/US Letter: "<>setpagedevice"
 216                                         $c= preg_replace("@^\*$eoption\s+([^/]+).*$@", "$1", $line);
 217                                         $d= preg_replace("@^\*$eoption\s+[^/]+/([^:]+).*$@", "$1", $line);
 218                                         $properties[$group][$option][trim($c)]= trim($d);
 219                                         continue;
 220                                 }
 221                         }
 222
 223                 }
 224                 fclose ($fh);
 225
 226                 return ($properties);
 227         }
 228
 229         function loadDescription($ppdFile)
 230         {
 231                 $model= "";
 232                 $manufacturer= "";
 233
 234                 $fh= fopen ($ppdFile, 'r');
 235                 while (!feof($fh)) {
 236
 237                         /* Read line */
 238                         $line= fgets($fh, 256);
 239                         if (strlen($line) >= 256){
 240                                 trigger_error(_('Parsing PPD file %s failed - line too long. Trailing characters have been ignored'), E_USER_WARNING);
 241                         }
 242
 243                         /* Extract interesting informations */
 244                         if (preg_match('/^\*Manufacturer:/i', $line)){
 245                                 $manufacturer= preg_replace('/^\*Manufacturer:\s+"?([^"]+)"?.*$/i', '\1', $line);
 246                         }
 247                         if (preg_match('/^\*ModelName:/i', $line)){
 248                                 $model= preg_replace('/^\*ModelName:\s+"?([^"]+)"?.*$/i', '\1', $line);
 249                         }
 250
 251                         /* Got everything we need? Skip rest for speed reasons... */
 252                         if ($model != '' && $manufacturer != ''){
 253                                 break;
 254                         }
 255                 }
 256                 fclose ($fh);
 257
 258                 /* Write out a notice that the PPD file seems to be broken if we can't
 259                    extract any usefull informations */
 260                 if ($model == '' || $manufacturer == ''){
 261                         trigger_error(sprintf(_('Parsing PPD file %s failed - no information found.'), $ppdFile), E_USER_WARNING);
 262                 }
 263
 264                 return ($manufacturer.' - '.$model);
 265         }
 266
 267
 268         function getPrinterList($reload= false)
 269         {
 270                 /* Load list of PPD files */
 271                 if (count($this->cachedList) == 0 || $reload){
 272                         $list= $this->findPPD($this->path);
 273
 274                         /* Load descriptive informations to build final printer list */
 275                         $this->cachedList= array();
 276                         foreach ($list as $ppdFile){
 277                                 $this->cachedList[$ppdFile]= $this->loadDescription($ppdFile);
 278                         }
 279
 280                 }
 281
 282                 return ($this->cachedList);
 283         }
 284
 285 }
 286
 287 ?>