trunk/gosa-plugins/goto/admin/systems/ppd/class_ppdManager.inc

   1 <?php
   2
   3 class ppdManager
   4 {
   5         var $path= "";
   6         var $cachedList= array();
   7         var $timestamps = array();
   8
   9         function ppdManager($path)
  10         {
  11                 if(is_dir($path)){
  12                         $this->path= $path;
  13                 }elseif(is_link($path) && (is_dir(readlink($path)))) {
  14                     $this->path= $path;
  15                 } else {
  16                         msg_dialog::display(_("PPD manager error"), sprintf(_("The specified path '%s' does not exist."),$path), ERROR_DIALOG);
  17                         return (false);
  18                 }
  19         }
  20
  21
  22         function findPPD($path)
  23         {
  24                 $list= array();
  25                 $currentDir= getcwd();
  26
  27                 $dh = opendir($path);
  28                 while(false !== ($file = readdir($dh))){
  29
  30                         /* Skip well known files */
  31                         if( $file == '.' || $file == '..'){
  32                                 continue;
  33                         }
  34
  35                         /* Recurse through all "common" directories */
  36                         $check_path= $path.'/'.$file;
  37                         if(is_dir($check_path) || (is_link($check_path) && (is_dir(readlink($check_path))))){
  38                                 $list= array_merge($list, $this->findPPD($check_path));
  39                                 continue;
  40                         }
  41
  42                         /* Check for PPD extension */
  43                         if (preg_match('/\.ppd(.gz)?$/i', $file)){
  44                                 $list[]= $path.'/'.$file;
  45                         }
  46                 }
  47
  48                 closedir($dh);
  49                 chdir ($currentDir);
  50                 return ($list);
  51         }
  52
  53
  54         function updateAttribute($file, $section, $attribute, $value)
  55         {
  56                 $fsection= false;
  57                 $fattribute= false;
  58                 $section= preg_replace('/^\*/', '', $section);
  59                 $attribute= preg_replace('/^\*/', '', $attribute);
  60
  61                 $rp= @gzopen($file, "r");
  62                 $wp= @gzopen("$file.tmp", "w");
  63
  64
  65
  66                 while (!gzeof($rp)){
  67                         $lines[]= gzgets($rp, 1024);
  68                 }
  69
  70                 $ret = "";
  71                 $done =false;
  72                 foreach($lines as $nr => $line){
  73
  74                         if (preg_match("/\*OpenGroup:*\s+\**$section\/*/", $line)){
  75                 $fsection= true;
  76                                 $ret .=$line;
  77                 continue;
  78             }
  79
  80                         /* Change model name .. */
  81                         if ((preg_match("/^\*".$attribute.":*\s+/",$line)) && ($attribute == "ModelName")){
  82                                 $line= "*$attribute: \"$value\"\n";
  83                                 $done =true;
  84                         }
  85
  86                         if (($fsection) && ($section != "NO_SECTION")){
  87                                 if (preg_match("/^\*CloseGroup:*\s+\**$section\/*/", $line)){
  88                                         $fsection= false;
  89                                         $ret .=$line;
  90                                         continue;
  91                                 }
  92
  93
  94                                 if (preg_match("/^\*OpenUI:*\s+\**$attribute\/*/", $line)){
  95                                         $fattribute= true;
  96                                         $ret .= $line;
  97                                         continue;
  98                                 }
  99
 100                                 if ($fattribute){
 101                                         if (preg_match("/^\*CloseUI:*\s+\**$attribute\/*/", $line)){
 102                                                 $fattribute= false;
 103                                                 $ret .= $line;
 104                                                 continue;
 105                                         }
 106
 107                                         if (preg_match("/^\*Default$attribute:*\s+/", $line)){
 108                                                 $line= "*Default$attribute: $value\n";
 109                                                 $done =true;
 110                                         }
 111                                 }
 112                         }else{
 113                                 if (preg_match("/^\*OpenUI:*\s+\**$attribute\/*/", $line)){
 114                                         $fattribute= true;
 115                                         $ret .= $line;
 116                                         continue;
 117                                 }
 118
 119                                 if ($fattribute){
 120                                         if (preg_match("/^\*CloseUI:*\s+\**$attribute\/*/", $line)){
 121                                                 $fattribute= false;
 122                                                 $ret .= $line;
 123                                                 continue;
 124                                         }
 125
 126                                         if (preg_match("/^\*Default$attribute:*\s+/", $line)){
 127                                                 $line= "*Default$attribute: $value\n";
 128                                                 $done =true;
 129                                         }
 130                                 }
 131                         }
 132                         $ret .=$line;
 133                 }
 134
 135                 gzwrite($wp,$ret);
 136
 137                 gzclose($wp);
 138                 gzclose($rp);
 139
 140                 copy("$file.tmp", "$file");
 141                 unlink("$file.tmp");
 142         }
 143
 144
 145         function saveProperties($ppdFile, $properties)
 146         {
 147                 if(!is_readable($ppdFile)){
 148                         msg_dialog::display(_("PPD manager error"), sprintf(_("Specified PPD file '%s' cannot be opened for reading."),$ppdFile), ERROR_DIALOG);
 149                 }elseif(!is_writeable(preg_replace("#(^.*/).*$#","\\1",$ppdFile.".tmp"))){
 150                         msg_dialog::display(_("PPD manager error"), sprintf(_("The temporary file '%s' cannot be opened for writing."),$ppdFile.".tmp"), ERROR_DIALOG);
 151                 }else{
 152                         if(is_array($properties)){
 153                                 foreach ($properties as $name => $section){
 154                                         foreach ($section as $attribute => $value){
 155                                                 if (is_array($value)){
 156                                                         $this->updateAttribute($ppdFile, $name, $attribute, $value['_default']);
 157                                                 }
 158                                         }
 159                                 }
 160                         }
 161                 }
 162         }
 163
 164         function loadProperties($ppdFile)
 165         {
 166                 $group= "";
 167                 $option= "";
 168                 $properties= array();
 169
 170                 $fh= gzopen ($ppdFile, 'r');
 171                 while (!gzeof($fh)) {
 172
 173                         /* Read line */
 174                         $line= gzgets($fh, 256);
 175                         if (strlen($line) >= 256){
 176                                 trigger_error(_('Parsing PPD file %s failed - line too long. Trailing characters have been ignored'), E_USER_WARNING);
 177                         }
 178
 179                         /* Trigger for option groups */
 180                         if (preg_match('/^\*OpenGroup:/i', $line)){
 181
 182                                 /* Sanity checks */
 183                                 if ($group != ""){
 184                                         trigger_error(_('Nested groups are not supported!'), E_USER_WARNING);
 185                                         continue;
 186                                 }
 187                                 if (in_array($group, $properties)){
 188                                         trigger_error(_('Group name not unique!'), E_USER_WARNING);
 189                                         continue;
 190                                 }
 191
 192                                 // TODO: Symbol values are not supported yet!
 193                                 if (preg_match('/\^/', $line)){
 194                                         trigger_error(_('Symbol values are not supported yet!'), E_USER_WARNING);
 195                                 }
 196                                 $complete= preg_replace('@^\*OpenGroup:\s+(.*)$@i', '\1', $line);
 197                                 $complete= trim($complete, '"');
 198                                 if (preg_match('@/@', $complete)){
 199                                         $group= trim(preg_replace('@^\*OpenGroup:\s+"?([^/]+)/.*$@i', '\1', $line));
 200                                         $name = preg_replace('@^\*OpenGroup:\s+"?[^/]+/([^/]+).*$@i', '\1', $line);
 201                                 } else {
 202                                         $group= $complete;
 203                                         $name = $complete;
 204                                 }
 205                                 $properties[$group]= array('_name' => $name);
 206                                 continue;
 207                         }
 208                         if (preg_match("/^\*CloseGroup:\s+\"?$group\"?/i", $line)){
 209                                 $group= "";
 210                                 continue;
 211                         }
 212
 213                         /* Trigger for options */
 214                         if (preg_match('/^\*OpenUI\s+/i', $line)){
 215
 216                                 /* Sanity check */
 217                                 if ($option != ""){
 218                                         trigger_error(_('Nested options are not supported!'), E_USER_WARNING);
 219                                         continue;
 220                                 }
 221
 222                                 // TODO: Symbol values are not supported yet!
 223                                 if (preg_match('/\^/', $line)){
 224                                         trigger_error(_('Symbol values are not supported yet!'), E_USER_WARNING);
 225                                 }
 226                                 $complete= preg_replace('@^\*OpenUI\s+(.*)$@i', '\1', $line);
 227                                 $complete= trim($complete, '"');
 228                                 if (preg_match('@/@', $complete)){
 229                                         $option= trim(preg_replace('@^\*OpenUI\s+([^/]+)/.*$@i', '\1', $line));
 230                                         $name = trim(preg_replace('@^\*OpenUI\s+[^/]+/([^/]+).*$@i', '\1', $line));
 231                                 } else {
 232                                         $option= trim($complete);
 233                                         $name  = trim($complete);
 234                                 }
 235
 236                                 /* Extract option type */
 237                                 $type= trim(preg_replace('/^[^:]+:\s+/', '', $line));
 238                                 $name= preg_replace('/:.*$/', '', $name);
 239                                 $option= preg_replace('/:.*$/', '', $option);
 240
 241                                 // TODO: PickMany is not supported yet!
 242                                 if (preg_match('/PickMany/i', $type)){
 243                                         trigger_error(_('PickMany is not supported yet!'), E_USER_WARNING);
 244                                 }
 245                                 if(empty($group)){
 246                                         $properties["NO_SECTION"][$option]= array('_name' => $name, '_type' => $type);
 247                                 }else{
 248                                         $properties[$group][$option]= array('_name' => $name, '_type' => $type);
 249                                 }
 250                                 continue;
 251                         }
 252                         /* Show interest for option parsing */
 253                         if ($option != ""){
 254
 255                                 $eoption= preg_replace('@\*@', '', $option);
 256
 257                                 /* Close section? */
 258                                 if (preg_match("@^\*CloseUI:\s+\*$eoption@i", $line)){
 259                                         $option= "";
 260                                         continue;
 261                                 }
 262
 263                                 /* Default value? */
 264                                 if (preg_match("@^\*Default$eoption:@", $line)){
 265                                         $c= preg_replace("@^\*Default$eoption:\s+@", "", $line);
 266                                         if(empty($group)){
 267                                                 $properties["NO_SECTION"][$option]['_default']= trim(trim($c, '"'));
 268                                         }else{
 269                                                 $properties[$group][$option]['_default']= trim(trim($c, '"'));
 270                                         }
 271                                         continue;
 272                                 }
 273
 274                                 /* Possible value? */
 275                                 if (preg_match("@^\*$eoption\s+@", $line)){
 276 #*PageSize Letter/US Letter: "<>setpagedevice"
 277                                         $c= preg_replace("@^\*$eoption\s+([^/]+).*$@", "$1", $line);
 278                                         $d= preg_replace("@^\*$eoption\s+[^/]+/([^:]+).*$@", "$1", $line);
 279                                         if(empty($group)){
 280                                                 $properties["NO_SECTION"][$option][trim($c)]= trim($d);
 281                                         }else{
 282                                                 $properties[$group][$option][trim($c)]= trim($d);
 283                                         }
 284                                         continue;
 285                                 }
 286                         }
 287                 }
 288                 gzclose ($fh);
 289                 return ($properties);
 290         }
 291
 292         function loadDescription($ppdFile)
 293         {
 294                 $ppdDesc = array();
 295
 296                 /* Only parse complete PPD file again, if it was changed */
 297                 $modified = filemtime($ppdFile);
 298                 if(isset($this->cachedList[$ppdFile]) && isset($this->timestamps[$ppdFile]) && $modified == $this->timestamps[$ppdFile]){
 299                         return($this->cachedList[$ppdFile]);
 300                 }
 301
 302                 /* Remember modified timestamp, to speed up next request */
 303                 $this->timestamps[$ppdFile] = filemtime($ppdFile);
 304
 305                 $fh= gzopen ($ppdFile, 'r');
 306                 while ((!gzeof($fh))&&($fh)) {
 307
 308                         /* Read line */
 309                         $line= gzgets($fh, 256);
 310                         if (strlen($line) >= 256){
 311                                 trigger_error(_('Parsing PPD file %s failed - line too long. Trailing characters have been ignored'), E_USER_WARNING);
 312                         }
 313
 314                         /* Extract interesting informations */
 315                         if (preg_match('/^\*Manufacturer:/i', $line)){
 316                                 $ppdDesc['manufacturer'] = trim(preg_replace('/^\*Manufacturer:\s+"?([^"]+)"?.*$/i', '\1', $line));
 317                         }
 318                         if (preg_match('/^\*ModelName:/i', $line)){
 319                                 $ppdDesc['model'] = trim(preg_replace('/^\*ModelName:\s+"?([^"]+)"?.*$/i', '\1', $line));
 320                         }
 321
 322                         /* Got everything we need? Skip rest for speed reasons... */
 323                         if (isset($ppdDesc['manufacturer'])  && isset($ppdDesc['model'])){
 324                                 break;
 325                         }
 326                 }
 327                 gzclose ($fh);
 328
 329                 /* If model contains manufacturer strip it */
 330                 $ppdDesc['model'] = str_replace($ppdDesc['manufacturer']." ", '', $ppdDesc['model']);
 331
 332                 /* Write out a notice that the PPD file seems to be broken if we can't
 333                    extract any usefull informations */
 334                 if ($ppdDesc['manufacturer'] == '' || $ppdDesc['model'] == ''){
 335                         trigger_error(sprintf(_('Parsing PPD file %s failed - no information found.'), $ppdFile), E_USER_WARNING);
 336                 }
 337
 338                 $ppdDesc['name'] = $ppdDesc['manufacturer'] . " - " . $ppdDesc['model'];
 339
 340                 return $ppdDesc;
 341         }
 342
 343
 344         function getPrinterList($reload= false)
 345         {
 346                 /* Load list of PPD files */
 347                 if (count($this->cachedList) == 0 || $reload){
 348                         $list= $this->findPPD($this->path);
 349
 350                         /* Load descriptive informations to build final printer list */
 351                         $new = array();
 352                         foreach ($list as $ppdFile){
 353                                 $new[$ppdFile] = $this->loadDescription($ppdFile);
 354                         }
 355                         $this->cachedList= $new ;
 356
 357                 }
 358
 359                 return ($this->cachedList);
 360         }
 361
 362 }
 363 // vim:tabstop=2:expandtab:shiftwidth=2:filetype=php:syntax:ruler:
 364 ?>