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
  61
  62                 while (!feof($rp)){
  63                         $lines[]= fgets($rp, 1024);
  64                 }
  65
  66                 $ret = "";
  67                 $done =false;
  68                 foreach($lines as $nr => $line){
  69
  70                         if (preg_match("/\*OpenGroup:*\s+\**$section\/*/", $line)){
  71                 $fsection= true;
  72                                 $ret .=$line;
  73                 continue;
  74             }
  75
  76                         if (($fsection) && ($section != "NO_SECTION")){
  77                                 if (preg_match("/^\*CloseGroup:*\s+\**$section\/*/", $line)){
  78                                         $fsection= false;
  79                                         $ret .=$line;
  80                                         continue;
  81                                 }
  82
  83
  84                                 if (preg_match("/^\*OpenUI:*\s+\**$attribute\/*/", $line)){
  85                                         $fattribute= true;
  86                                         $ret .= $line;
  87                                         continue;
  88                                 }
  89
  90                                 if ($fattribute){
  91                                         if (preg_match("/^\*CloseUI:*\s+\**$attribute\/*/", $line)){
  92                                                 $fattribute= false;
  93                                                 $ret .= $line;
  94                                                 continue;
  95                                         }
  96
  97                                         if (preg_match("/^\*Default$attribute:*\s+/", $line)){
  98                                                 $line= "*Default$attribute: $value\n";
  99                                                 $done =true;
 100                                         }
 101                                 }
 102                         }else{
 103                                 if (preg_match("/^\*OpenUI:*\s+\**$attribute\/*/", $line)){
 104                                         $fattribute= true;
 105                                         $ret .= $line;
 106                                         continue;
 107                                 }
 108
 109                                 if ($fattribute){
 110                                         if (preg_match("/^\*CloseUI:*\s+\**$attribute\/*/", $line)){
 111                                                 $fattribute= false;
 112                                                 $ret .= $line;
 113                                                 continue;
 114                                         }
 115
 116                                         if (preg_match("/^\*Default$attribute:*\s+/", $line)){
 117                                                 $line= "*Default$attribute: $value\n";
 118                                                 $done =true;
 119                                         }
 120                                 }
 121                         }
 122                         $ret .=$line;
 123                 }
 124
 125                 fwrite($wp,$ret);
 126
 127                 fclose($wp);
 128                 fclose($rp);
 129
 130                 copy("$file.tmp", "$file");
 131                 unlink("$file.tmp");
 132         }
 133
 134
 135         function saveProperties($ppdFile, $properties)
 136         {
 137                 if(!is_readable($ppdFile)){
 138                         print_red(sprintf(_("Specified ppd file '%s' can't be opened for reading."),$ppdFile));
 139                 }elseif(!is_writeable($ppdFile.".tmp")){
 140                         print_red(sprintf(_("The required tmp file file '%s' can't be opened for writing."),$ppdFile.".tmp"));
 141                 }else{
 142                         foreach ($properties as $name => $section){
 143                                 foreach ($section as $attribute => $value){
 144                                         if (is_array($value)){
 145                                                 $this->updateAttribute($ppdFile, $name, $attribute, $value['_default']);
 146                                         }
 147                                 }
 148                         }
 149                 }
 150         }
 151
 152         function loadProperties($ppdFile)
 153         {
 154                 $group= "";
 155                 $option= "";
 156                 $properties= array();
 157
 158                 $fh= fopen ($ppdFile, 'r');
 159                 while (!feof($fh)) {
 160
 161                         /* Read line */
 162                         $line= fgets($fh, 256);
 163                         if (strlen($line) >= 256){
 164                                 trigger_error(_('Parsing PPD file %s failed - line too long. Trailing characters have been ignored'), E_USER_WARNING);
 165                         }
 166
 167                         /* Trigger for option groups */
 168                         if (preg_match('/^\*OpenGroup:/i', $line)){
 169
 170                                 /* Sanity checks */
 171                                 if ($group != ""){
 172                                         trigger_error(_('Nested groups are not supported!'), E_USER_WARNING);
 173                                         continue;
 174                                 }
 175                                 if (in_array($group, $properties)){
 176                                         trigger_error(_('Group name not unique!'), E_USER_WARNING);
 177                                         continue;
 178                                 }
 179
 180                                 // TODO: Symbol values are not supported yet!
 181                                 if (preg_match('/\^/', $line)){
 182                                         trigger_error(_('Symbol values are not supported yet!'), E_USER_WARNING);
 183                                 }
 184                                 $complete= preg_replace('@^\*OpenGroup:\s+(.*)$@i', '\1', $line);
 185                                 $complete= trim($complete, '"');
 186                                 if (preg_match('@/@', $complete)){
 187                                         $group= trim(preg_replace('@^\*OpenGroup:\s+"?([^/]+)/.*$@i', '\1', $line));
 188                                         $name = preg_replace('@^\*OpenGroup:\s+"?[^/]+/([^/]+).*$@i', '\1', $line);
 189                                 } else {
 190                                         $group= $complete;
 191                                         $name = $complete;
 192                                 }
 193                                 $properties[$group]= array('_name' => $name);
 194                                 continue;
 195                         }
 196                         if (preg_match("/^\*CloseGroup:\s+\"?$group\"?/i", $line)){
 197                                 $group= "";
 198                                 continue;
 199                         }
 200
 201                         /* Trigger for options */
 202                         if (preg_match('/^\*OpenUI\s+/i', $line)){
 203
 204                                 /* Sanity check */
 205                                 if ($option != ""){
 206                                         trigger_error(_('Nested options are not supported!'), E_USER_WARNING);
 207                                         continue;
 208                                 }
 209
 210                                 // TODO: Symbol values are not supported yet!
 211                                 if (preg_match('/\^/', $line)){
 212                                         trigger_error(_('Symbol values are not supported yet!'), E_USER_WARNING);
 213                                 }
 214                                 $complete= preg_replace('@^\*OpenUI\s+(.*)$@i', '\1', $line);
 215                                 $complete= trim($complete, '"');
 216                                 if (preg_match('@/@', $complete)){
 217                                         $option= trim(preg_replace('@^\*OpenUI\s+([^/]+)/.*$@i', '\1', $line));
 218                                         $name = trim(preg_replace('@^\*OpenUI\s+[^/]+/([^/]+).*$@i', '\1', $line));
 219                                 } else {
 220                                         $option= trim($complete);
 221                                         $name  = trim($complete);
 222                                 }
 223
 224                                 /* Extract option type */
 225                                 $type= trim(preg_replace('/^[^:]+:\s+/', '', $line));
 226                                 $name= preg_replace('/:.*$/', '', $name);
 227                                 $option= preg_replace('/:.*$/', '', $option);
 228
 229                                 // TODO: PickMany is not supported yet!
 230                                 if (preg_match('/PickMany/i', $type)){
 231                                         trigger_error(_('PickMany is not supported yet!'), E_USER_WARNING);
 232                                 }
 233                                 if(empty($group)){
 234                                         $properties["NO_SECTION"][$option]= array('_name' => $name, '_type' => $type);
 235                                 }else{
 236                                         $properties[$group][$option]= array('_name' => $name, '_type' => $type);
 237                                 }
 238                                 continue;
 239                         }
 240                         /* Show interest for option parsing */
 241                         if ($option != ""){
 242
 243                                 $eoption= preg_replace('@\*@', '', $option);
 244
 245                                 /* Close section? */
 246                                 if (preg_match("@^\*CloseUI:\s+\*$eoption@i", $line)){
 247                                         $option= "";
 248                                         continue;
 249                                 }
 250
 251                                 /* Default value? */
 252                                 if (preg_match("@^\*Default$eoption:@", $line)){
 253                                         $c= preg_replace("@^\*Default$eoption:\s+@", "", $line);
 254                                         if(empty($group)){
 255                                                 $properties["NO_SECTION"][$option]['_default']= trim(trim($c, '"'));
 256                                         }else{
 257                                                 $properties[$group][$option]['_default']= trim(trim($c, '"'));
 258                                         }
 259                                         continue;
 260                                 }
 261
 262                                 /* Possible value? */
 263                                 if (preg_match("@^\*$eoption\s+@", $line)){
 264 #*PageSize Letter/US Letter: "<>setpagedevice"
 265                                         $c= preg_replace("@^\*$eoption\s+([^/]+).*$@", "$1", $line);
 266                                         $d= preg_replace("@^\*$eoption\s+[^/]+/([^:]+).*$@", "$1", $line);
 267                                         if(empty($group)){
 268                                                 $properties["NO_SECTION"][$option][trim($c)]= trim($d);
 269                                         }else{
 270                                                 $properties[$group][$option][trim($c)]= trim($d);
 271                                         }
 272                                         continue;
 273                                 }
 274                         }
 275                 }
 276                 fclose ($fh);
 277                 return ($properties);
 278         }
 279
 280         function loadDescription($ppdFile)
 281         {
 282                 $model= "";
 283                 $manufacturer= "";
 284
 285                 $fh= fopen ($ppdFile, 'r');
 286                 while ((!feof($fh))&&($fh)) {
 287
 288                         /* Read line */
 289                         $line= fgets($fh, 256);
 290                         if (strlen($line) >= 256){
 291                                 trigger_error(_('Parsing PPD file %s failed - line too long. Trailing characters have been ignored'), E_USER_WARNING);
 292                         }
 293
 294                         /* Extract interesting informations */
 295                         if (preg_match('/^\*Manufacturer:/i', $line)){
 296                                 $manufacturer= preg_replace('/^\*Manufacturer:\s+"?([^"]+)"?.*$/i', '\1', $line);
 297                         }
 298                         if (preg_match('/^\*ModelName:/i', $line)){
 299                                 $model= preg_replace('/^\*ModelName:\s+"?([^"]+)"?.*$/i', '\1', $line);
 300                         }
 301
 302                         /* Got everything we need? Skip rest for speed reasons... */
 303                         if ($model != '' && $manufacturer != ''){
 304                                 break;
 305                         }
 306                 }
 307                 fclose ($fh);
 308
 309                 /* Write out a notice that the PPD file seems to be broken if we can't
 310                    extract any usefull informations */
 311                 if ($model == '' || $manufacturer == ''){
 312                         trigger_error(sprintf(_('Parsing PPD file %s failed - no information found.'), $ppdFile), E_USER_WARNING);
 313                 }
 314
 315                 return ($manufacturer.' - '.$model);
 316         }
 317
 318
 319         function getPrinterList($reload= false)
 320         {
 321                 /* Load list of PPD files */
 322                 if (count($this->cachedList) == 0 || $reload){
 323                         $list= $this->findPPD($this->path);
 324
 325                         /* Load descriptive informations to build final printer list */
 326                         $this->cachedList= array();
 327                         foreach ($list as $ppdFile){
 328                                 $this->cachedList[$ppdFile]= $this->loadDescription($ppdFile);
 329                         }
 330
 331                 }
 332
 333                 return ($this->cachedList);
 334         }
 335
 336 }
 337
 338 ?>