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                         $lines[]= fgets($rp, 1024);
  62                 }
  63
  64                 $ret = "";
  65                 $done =false;
  66                 foreach($lines as $nr => $line){
  67
  68                         if (preg_match("/\*OpenGroup:*\s+\**$section\/*/", $line)){
  69                 $fsection= true;
  70                                 $ret .=$line;
  71                 continue;
  72             }
  73
  74                         if (($fsection) && ($section != "NO_SECTION")){
  75                                 if (preg_match("/^\*CloseGroup:*\s+\**$section\/*/", $line)){
  76                                         $fsection= false;
  77                                         $ret .=$line;
  78                                         continue;
  79                                 }
  80
  81
  82                                 if (preg_match("/^\*OpenUI:*\s+\**$attribute\/*/", $line)){
  83                                         $fattribute= true;
  84                                         $ret .= $line;
  85                                         continue;
  86                                 }
  87
  88                                 if ($fattribute){
  89                                         if (preg_match("/^\*CloseUI:*\s+\**$attribute\/*/", $line)){
  90                                                 $fattribute= false;
  91                                                 $ret .= $line;
  92                                                 continue;
  93                                         }
  94
  95                                         if (preg_match("/^\*Default$attribute:*\s+/", $line)){
  96                                                 $line= "*Default$attribute: $value\n";
  97                                                 $done =true;
  98                                         }
  99                                 }
 100                         }else{
 101                                 if (preg_match("/^\*OpenUI:*\s+\**$attribute\/*/", $line)){
 102                                         $fattribute= true;
 103                                         $ret .= $line;
 104                                         continue;
 105                                 }
 106
 107                                 if ($fattribute){
 108                                         if (preg_match("/^\*CloseUI:*\s+\**$attribute\/*/", $line)){
 109                                                 $fattribute= false;
 110                                                 $ret .= $line;
 111                                                 continue;
 112                                         }
 113
 114                                         if (preg_match("/^\*Default$attribute:*\s+/", $line)){
 115                                                 $line= "*Default$attribute: $value\n";
 116                                                 $done =true;
 117                                         }
 118                                 }
 119                         }
 120                         $ret .=$line;
 121                 }
 122
 123                 fwrite($wp,$ret);
 124
 125                 fclose($wp);
 126                 fclose($rp);
 127
 128                 copy("$file.tmp", "$file");
 129                 unlink("$file.tmp");
 130         }
 131
 132
 133         function saveProperties($ppdFile, $properties)
 134         {
 135                 foreach ($properties as $name => $section){
 136                         foreach ($section as $attribute => $value){
 137                                 if (is_array($value)){
 138                                         $this->updateAttribute($ppdFile, $name, $attribute, $value['_default']);
 139                                 }
 140                         }
 141                 }
 142         }
 143
 144         function loadProperties($ppdFile)
 145         {
 146                 $group= "";
 147                 $option= "";
 148                 $properties= array();
 149
 150                 $fh= fopen ($ppdFile, 'r');
 151                 while (!feof($fh)) {
 152
 153                         /* Read line */
 154                         $line= fgets($fh, 256);
 155                         if (strlen($line) >= 256){
 156                                 trigger_error(_('Parsing PPD file %s failed - line too long. Trailing characters have been ignored'), E_USER_WARNING);
 157                         }
 158
 159                         /* Trigger for option groups */
 160                         if (preg_match('/^\*OpenGroup:/i', $line)){
 161
 162                                 /* Sanity checks */
 163                                 if ($group != ""){
 164                                         trigger_error(_('Nested groups are not supported!'), E_USER_WARNING);
 165                                         continue;
 166                                 }
 167                                 if (in_array($group, $properties)){
 168                                         trigger_error(_('Group name not unique!'), E_USER_WARNING);
 169                                         continue;
 170                                 }
 171
 172                                 // TODO: Symbol values are not supported yet!
 173                                 if (preg_match('/\^/', $line)){
 174                                         trigger_error(_('Symbol values are not supported yet!'), E_USER_WARNING);
 175                                 }
 176                                 $complete= preg_replace('@^\*OpenGroup:\s+(.*)$@i', '\1', $line);
 177                                 $complete= trim($complete, '"');
 178                                 if (preg_match('@/@', $complete)){
 179                                         $group= trim(preg_replace('@^\*OpenGroup:\s+"?([^/]+)/.*$@i', '\1', $line));
 180                                         $name = preg_replace('@^\*OpenGroup:\s+"?[^/]+/([^/]+).*$@i', '\1', $line);
 181                                 } else {
 182                                         $group= $complete;
 183                                         $name = $complete;
 184                                 }
 185                                 $properties[$group]= array('_name' => $name);
 186                                 continue;
 187                         }
 188                         if (preg_match("/^\*CloseGroup:\s+\"?$group\"?/i", $line)){
 189                                 $group= "";
 190                                 continue;
 191                         }
 192
 193                         /* Trigger for options */
 194                         if (preg_match('/^\*OpenUI\s+/i', $line)){
 195
 196                                 /* Sanity check */
 197                                 if ($option != ""){
 198                                         trigger_error(_('Nested options are not supported!'), E_USER_WARNING);
 199                                         continue;
 200                                 }
 201
 202                                 // TODO: Symbol values are not supported yet!
 203                                 if (preg_match('/\^/', $line)){
 204                                         trigger_error(_('Symbol values are not supported yet!'), E_USER_WARNING);
 205                                 }
 206                                 $complete= preg_replace('@^\*OpenUI\s+(.*)$@i', '\1', $line);
 207                                 $complete= trim($complete, '"');
 208                                 if (preg_match('@/@', $complete)){
 209                                         $option= trim(preg_replace('@^\*OpenUI\s+([^/]+)/.*$@i', '\1', $line));
 210                                         $name = trim(preg_replace('@^\*OpenUI\s+[^/]+/([^/]+).*$@i', '\1', $line));
 211                                 } else {
 212                                         $option= trim($complete);
 213                                         $name  = trim($complete);
 214                                 }
 215
 216                                 /* Extract option type */
 217                                 $type= trim(preg_replace('/^[^:]+:\s+/', '', $line));
 218                                 $name= preg_replace('/:.*$/', '', $name);
 219                                 $option= preg_replace('/:.*$/', '', $option);
 220
 221                                 // TODO: PickMany is not supported yet!
 222                                 if (preg_match('/PickMany/i', $type)){
 223                                         trigger_error(_('PickMany is not supported yet!'), E_USER_WARNING);
 224                                 }
 225                                 if(empty($group)){
 226                                         $properties["NO_SECTION"][$option]= array('_name' => $name, '_type' => $type);
 227                                 }else{
 228                                         $properties[$group][$option]= array('_name' => $name, '_type' => $type);
 229                                 }
 230                                 continue;
 231                         }
 232                         /* Show interest for option parsing */
 233                         if ($option != ""){
 234
 235                                 $eoption= preg_replace('@\*@', '', $option);
 236
 237                                 /* Close section? */
 238                                 if (preg_match("@^\*CloseUI:\s+\*$eoption@i", $line)){
 239                                         $option= "";
 240                                         continue;
 241                                 }
 242
 243                                 /* Default value? */
 244                                 if (preg_match("@^\*Default$eoption:@", $line)){
 245                                         $c= preg_replace("@^\*Default$eoption:\s+@", "", $line);
 246                                         if(empty($group)){
 247                                                 $properties["NO_SECTION"][$option]['_default']= trim(trim($c, '"'));
 248                                         }else{
 249                                                 $properties[$group][$option]['_default']= trim(trim($c, '"'));
 250                                         }
 251                                         continue;
 252                                 }
 253
 254                                 /* Possible value? */
 255                                 if (preg_match("@^\*$eoption\s+@", $line)){
 256 #*PageSize Letter/US Letter: "<>setpagedevice"
 257                                         $c= preg_replace("@^\*$eoption\s+([^/]+).*$@", "$1", $line);
 258                                         $d= preg_replace("@^\*$eoption\s+[^/]+/([^:]+).*$@", "$1", $line);
 259                                         if(empty($group)){
 260                                                 $properties["NO_SECTION"][$option][trim($c)]= trim($d);
 261                                         }else{
 262                                                 $properties[$group][$option][trim($c)]= trim($d);
 263                                         }
 264                                         continue;
 265                                 }
 266                         }
 267                 }
 268                 fclose ($fh);
 269                 return ($properties);
 270         }
 271
 272         function loadDescription($ppdFile)
 273         {
 274                 $model= "";
 275                 $manufacturer= "";
 276
 277                 $fh= fopen ($ppdFile, 'r');
 278                 while ((!feof($fh))&&($fh)) {
 279
 280                         /* Read line */
 281                         $line= fgets($fh, 256);
 282                         if (strlen($line) >= 256){
 283                                 trigger_error(_('Parsing PPD file %s failed - line too long. Trailing characters have been ignored'), E_USER_WARNING);
 284                         }
 285
 286                         /* Extract interesting informations */
 287                         if (preg_match('/^\*Manufacturer:/i', $line)){
 288                                 $manufacturer= preg_replace('/^\*Manufacturer:\s+"?([^"]+)"?.*$/i', '\1', $line);
 289                         }
 290                         if (preg_match('/^\*ModelName:/i', $line)){
 291                                 $model= preg_replace('/^\*ModelName:\s+"?([^"]+)"?.*$/i', '\1', $line);
 292                         }
 293
 294                         /* Got everything we need? Skip rest for speed reasons... */
 295                         if ($model != '' && $manufacturer != ''){
 296                                 break;
 297                         }
 298                 }
 299                 fclose ($fh);
 300
 301                 /* Write out a notice that the PPD file seems to be broken if we can't
 302                    extract any usefull informations */
 303                 if ($model == '' || $manufacturer == ''){
 304                         trigger_error(sprintf(_('Parsing PPD file %s failed - no information found.'), $ppdFile), E_USER_WARNING);
 305                 }
 306
 307                 return ($manufacturer.' - '.$model);
 308         }
 309
 310
 311         function getPrinterList($reload= false)
 312         {
 313                 /* Load list of PPD files */
 314                 if (count($this->cachedList) == 0 || $reload){
 315                         $list= $this->findPPD($this->path);
 316
 317                         /* Load descriptive informations to build final printer list */
 318                         $this->cachedList= array();
 319                         foreach ($list as $ppdFile){
 320                                 $this->cachedList[$ppdFile]= $this->loadDescription($ppdFile);
 321                         }
 322
 323                 }
 324
 325                 return ($this->cachedList);
 326         }
 327
 328 }
 329
 330 ?>