lib/iconslib.php

   1 <?php
   2 //
   3 // icon functions - just phpthumb handlers for now
   4 //
   5
   6 require_once($CFG->dirroot . 'lib/filelib.php');
   7 require_once($CFG->dirroot . 'lib/phpthumb/phpthumb.class.php');
   8 require_once($CFG->dirroot . 'lib/phpthumb/phpThumb.config.php');
   9
  10
  11 // a cut-down functionised version of the standard phpThumb.php
  12 // outputs an image to the browser and exits
  13 function spit_phpthumb_image($filepath, $configarray = array()) {
  14
  15     // set up class
  16     global $CFG, $PHPTHUMB_CONFIG;
  17     $phpThumb = new phpThumb();
  18
  19     // import default config
  20     if (!empty($PHPTHUMB_CONFIG)) {
  21         foreach ($PHPTHUMB_CONFIG as $key => $value) {
  22             $keyname = 'config_'.$key;
  23             $phpThumb->setParameter($keyname, $value);
  24         }
  25     }
  26
  27     // import passed params
  28     if (!empty($configarray)) {
  29         foreach ($configarray as $key => $value) {
  30             $keyname = $key;
  31             $phpThumb->setParameter($keyname, $value);
  32         }
  33     }
  34
  35     $phpThumb->setSourceFilename($filepath);
  36
  37     if (!is_file($phpThumb->sourceFilename) && !phpthumb_functions::gd_version()) {
  38         if (!headers_sent()) {
  39             // base64-encoded error image in GIF format
  40             $ERROR_NOGD = 'R0lGODlhIAAgALMAAAAAABQUFCQkJDY2NkZGRldXV2ZmZnJycoaGhpSUlKWlpbe3t8XFxdXV1eTk5P7+/iwAAAAAIAAgAAAE/vDJSau9WILtTAACUinDNijZtAHfCojS4W5H+qxD8xibIDE9h0OwWaRWDIljJSkUJYsN4bihMB8th3IToAKs1VtYM75cyV8sZ8vygtOE5yMKmGbO4jRdICQCjHdlZzwzNW4qZSQmKDaNjhUMBX4BBAlmMywFSRWEmAI6b5gAlhNxokGhooAIK5o/pi9vEw4Lfj4OLTAUpj6IabMtCwlSFw0DCKBoFqwAB04AjI54PyZ+yY3TD0ss2YcVmN/gvpcu4TOyFivWqYJlbAHPpOntvxNAACcmGHjZzAZqzSzcq5fNjxFmAFw9iFRunD1epU6tsIPmFCAJnWYE0FURk7wJDA0MTKpEzoWAAskiAAA7';
  41             header('Content-Type: image/gif');
  42             echo base64_decode($ERROR_NOGD);
  43         } else {
  44             echo '*** ERROR: No PHP-GD support available ***';
  45         }
  46         exit;
  47     }
  48
  49     $phpThumb->SetCacheFilename();
  50
  51     if (!file_exists($phpThumb->cache_filename) && is_writable(dirname($phpThumb->cache_filename))) {
  52 //         error_log("generating to cache: " . $phpThumb->cache_filename);
  53         $phpThumb->CleanUpCacheDirectory();
  54         $phpThumb->GenerateThumbnail();
  55         $phpThumb->RenderToFile($phpThumb->cache_filename);
  56     }
  57
  58     if (is_file($phpThumb->cache_filename)) {
  59 //         error_log("sending from cache: " . $phpThumb->cache_filename);
  60         if ($getimagesize = @GetImageSize($phpThumb->cache_filename)) {
  61             $mimetype = phpthumb_functions::ImageTypeToMIMEtype($getimagesize[2]);
  62         }
  63         spitfile_with_mtime_check ($phpThumb->cache_filename, $mimetype);
  64     } else {
  65 //         error_log("phpthumb cache file doesn't exist: " . $phpThumb->cache_filename);
  66         $phpThumb->GenerateThumbnail();
  67         $phpThumb->OutputThumbnail();
  68         exit;
  69     }
  70
  71 }
  72
  73
  74
  75 ?>