Documentation TYPO3 par Ameos

transformations.lib.php

00001 <?php
00002 /* $Id: transformations.lib.php,v 2.3 2003/11/26 22:52:23 rabus Exp $ */
00003 // vim: expandtab sw=4 ts=4 sts=4:
00004 
00009 function PMA_transformation_getOptions($string) {
00010     $transform_options = array();
00011 
00012     if ($string != '') {
00013         if ($string{0} == "'" && $string{strlen($string)-1} == "'") {
00014             $transform_options = explode('\',\'', substr($string, 1, strlen($string)-2));
00015         } else {
00016             $transform_options = array(0 => $string);
00017         }
00018     }
00019 
00020     return $transform_options;
00021 }
00022 
00032 function PMA_getAvailableMIMEtypes() {
00033     $handle = opendir('./libraries/transformations');
00034 
00035     $stack = array();
00036     $filestack = array();
00037 
00038     while (($file = readdir($handle)) != false) {
00039         $filestack[$file] = $file;
00040     }
00041 
00042     closedir($handle);
00043 
00044     if (is_array($filestack)) {
00045         @ksort($filestack);
00046         foreach($filestack AS $key => $file) {
00047 
00048             if (preg_match('|^.*__.*\.inc\.php(3?)$|', trim($file), $match)) {
00049                 // File contains transformation functions.
00050                 $base = explode('__', str_replace('.inc.php' . $match[1], '', $file));
00051 
00052                 $mimetype = str_replace('_', '/', $base[0]);
00053                 $stack['mimetype'][$mimetype] = $mimetype;
00054 
00055                 $stack['transformation'][] = $mimetype . ': ' . $base[1];
00056                 $stack['transformation_file'][] = $file;
00057 
00058             } else if (preg_match('|^.*\.inc\.php(3?)$|', trim($file), $match)) {
00059                 // File is a plain mimetype, no functions.
00060                 $base = str_replace('.inc.php' . $match[1], '', $file);
00061 
00062                 if ($base != 'global') {
00063                     $mimetype = str_replace('_', '/', $base);
00064                     $stack['mimetype'][$mimetype] = $mimetype;
00065                     $stack['empty_mimetype'][$mimetype] = $mimetype;
00066                 }
00067             }
00068 
00069         }
00070     }
00071 
00072     return $stack;
00073 }
00074 
00090 function PMA_getMIME($db, $table, $strict = false) {
00091     global $cfgRelation;
00092 
00093     $com_qry  = 'SELECT column_name, mimetype, transformation, transformation_options FROM ' . PMA_backquote($cfgRelation['column_info'])
00094               . ' WHERE db_name = \'' . PMA_sqlAddslashes($db) . '\''
00095               . ' AND table_name = \'' . PMA_sqlAddslashes($table) . '\''
00096               . ' AND (mimetype != \'\'' . (!$strict ? ' OR transformation != \'\' OR transformation_options != \'\'' : '') . ')';
00097     $com_rs   = PMA_query_as_cu($com_qry);
00098 
00099     while ($row = @PMA_mysql_fetch_array($com_rs)) {
00100         $col                                    = $row['column_name'];
00101         $mime[$col]['mimetype']                 = $row['mimetype'];
00102         $mime[$col]['transformation']           = $row['transformation'];
00103         $mime[$col]['transformation_options']   = $row['transformation_options'];
00104     } // end while
00105 
00106     if (isset($mime) && is_array($mime)) {
00107         return $mime;
00108      } else {
00109         return FALSE;
00110      }
00111  } // end of the 'PMA_getMIME()' function
00112 
00130 function PMA_setMIME($db, $table, $key, $mimetype, $transformation, $transformation_options, $forcedelete = false) {
00131     global $cfgRelation;
00132 
00133     $test_qry  = 'SELECT mimetype, ' . PMA_backquote('comment') . ' FROM ' . PMA_backquote($cfgRelation['column_info'])
00134                 . ' WHERE db_name = \'' . PMA_sqlAddslashes($db) . '\''
00135                 . ' AND table_name = \'' . PMA_sqlAddslashes($table) . '\''
00136                 . ' AND column_name = \'' . PMA_sqlAddslashes($key) . '\'';
00137     $test_rs   = PMA_query_as_cu($test_qry);
00138 
00139     if ($test_rs && mysql_num_rows($test_rs) > 0) {
00140         $row = @PMA_mysql_fetch_array($test_rs);
00141 
00142         if (!$forcedelete && (strlen($mimetype) > 0 || strlen($transformation) > 0 || strlen($transformation_options) > 0 || strlen($row['comment']) > 0)) {
00143             $upd_query = 'UPDATE ' . PMA_backquote($cfgRelation['column_info'])
00144                    . ' SET mimetype = \'' . PMA_sqlAddslashes($mimetype) . '\','
00145                    . '     transformation = \'' . PMA_sqlAddslashes($transformation) . '\','
00146                    . '     transformation_options = \'' . PMA_sqlAddslashes($transformation_options) . '\''
00147                    . ' WHERE db_name  = \'' . PMA_sqlAddslashes($db) . '\''
00148                    . ' AND table_name = \'' . PMA_sqlAddslashes($table) . '\''
00149                    . ' AND column_name = \'' . PMA_sqlAddslashes($key) . '\'';
00150         } else {
00151             $upd_query = 'DELETE FROM ' . PMA_backquote($cfgRelation['column_info'])
00152                    . ' WHERE db_name  = \'' . PMA_sqlAddslashes($db) . '\''
00153                    . ' AND table_name = \'' . PMA_sqlAddslashes($table) . '\''
00154                    . ' AND column_name = \'' . PMA_sqlAddslashes($key) . '\'';
00155         }
00156     } else if (strlen($mimetype) > 0 || strlen($transformation) > 0 || strlen($transformation_options) > 0) {
00157         $upd_query = 'INSERT INTO ' . PMA_backquote($cfgRelation['column_info'])
00158                    . ' (db_name, table_name, column_name, mimetype, transformation, transformation_options) '
00159                    . ' VALUES('
00160                    . '\'' . PMA_sqlAddslashes($db) . '\','
00161                    . '\'' . PMA_sqlAddslashes($table) . '\','
00162                    . '\'' . PMA_sqlAddslashes($key) . '\','
00163                    . '\'' . PMA_sqlAddslashes($mimetype) . '\','
00164                    . '\'' . PMA_sqlAddslashes($transformation) . '\','
00165                    . '\'' . PMA_sqlAddslashes($transformation_options) . '\')';
00166     }
00167 
00168     if (isset($upd_query)){
00169         $upd_rs    = PMA_query_as_cu($upd_query);
00170         unset($upd_query);
00171         return true;
00172     } else {
00173         return false;
00174     }
00175 } // end of 'PMA_setMIME()' function
00176 
00186 function PMA_sanitizeTransformationFile(&$filename) {
00187     // garvin: for security, never allow to break out from transformations directory
00188 
00189     $include_file = preg_replace('@\.\.*@', '.', $filename);
00190 
00191     // This value can also contain a 'php3' value, in which case we map this filename to our new 'php' variant
00192     $testfile = preg_replace('@\.inc\.php3$@', '.inc.php', $include_file);
00193     if ($include_file{strlen($include_file)-1} == '3' && file_exists('./libraries/transformations/' . $testfile)) {
00194         $include_file = $testfile;
00195         $filename     = $testfile; // Corrects the referenced variable for further actions on the filename;
00196     }
00197 
00198     return $include_file;
00199 } // end of 'PMA_sanitizeTransformationFile()' function
00200 ?>


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