Documentation TYPO3 par Ameos

class.t3lib_extmgm.php

00001 <?php
00002 /***************************************************************
00003 *  Copyright notice
00004 *
00005 *  (c) 1999-2006 Kasper Skaarhoj (kasperYYYY@typo3.com)
00006 *  All rights reserved
00007 *
00008 *  This script is part of the TYPO3 project. The TYPO3 project is
00009 *  free software; you can redistribute it and/or modify
00010 *  it under the terms of the GNU General Public License as published by
00011 *  the Free Software Foundation; either version 2 of the License, or
00012 *  (at your option) any later version.
00013 *
00014 *  The GNU General Public License can be found at
00015 *  http://www.gnu.org/copyleft/gpl.html.
00016 *  A copy is found in the textfile GPL.txt and important notices to the license
00017 *  from the author is found in LICENSE.txt distributed with these scripts.
00018 *
00019 *
00020 *  This script is distributed in the hope that it will be useful,
00021 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00022 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00023 *  GNU General Public License for more details.
00024 *
00025 *  This copyright notice MUST APPEAR in all copies of the script!
00026 ***************************************************************/
00114 class t3lib_extMgm {
00115 
00116 
00117         /**************************************
00118          *
00119          * PATHS and other evaluation
00120          *
00121          ***************************************/
00122 
00131         function isLoaded($key,$exitOnError=0)  {
00132                 global $TYPO3_LOADED_EXT;
00133                 if ($exitOnError && !isset($TYPO3_LOADED_EXT[$key]))    die('Fatal Error: Extension "'.$key.'" was not loaded.');
00134                 return isset($TYPO3_LOADED_EXT[$key]);
00135         }
00136 
00147         function extPath($key,$script='')       {
00148                 global $TYPO3_LOADED_EXT;
00149                 if (!isset($TYPO3_LOADED_EXT[$key]))    {
00150                         #debug(array(debug_backtrace()));
00151                         die('TYPO3 Fatal Error: Extension key "'.$key.'" was NOT loaded! (t3lib_extMgm::extPath)');
00152                 }
00153                 return PATH_site.$TYPO3_LOADED_EXT[$key]['siteRelPath'].$script;
00154         }
00155 
00165         function extRelPath($key)       {
00166                 global $TYPO3_LOADED_EXT;
00167                 if (!isset($TYPO3_LOADED_EXT[$key]))    {
00168                         die('TYPO3 Fatal Error: Extension key "'.$key.'" was NOT loaded! (t3lib_extMgm::extRelPath)');
00169                 }
00170                 return $TYPO3_LOADED_EXT[$key]['typo3RelPath'];
00171         }
00172 
00182         function siteRelPath($key)      {
00183                 return substr(t3lib_extMgm::extPath($key),strlen(PATH_site));
00184         }
00185 
00194         function getCN($key)    {
00195                 return substr($key,0,5)=='user_' ? 'user_'.str_replace('_','',substr($key,5)) : 'tx_'.str_replace('_','',$key);
00196         }
00197 
00198 
00199 
00200 
00201 
00202 
00203 
00204 
00205 
00206 
00207         /**************************************
00208          *
00209          *       Adding BACKEND features
00210          *       (related to core features)
00211          *
00212          ***************************************/
00213 
00227         function addTCAcolumns($table,$columnArray,$addTofeInterface=0) {
00228                 global $TCA;
00229                 t3lib_div::loadTCA($table);
00230                 if (is_array($columnArray) && is_array($TCA[$table]) && is_array($TCA[$table]['columns']))      {
00231                         $TCA[$table]['columns'] = array_merge($TCA[$table]['columns'],$columnArray);    // Candidate for t3lib_div::array_merge() if integer-keys will some day make trouble...
00232                         if ($addTofeInterface)  $TCA[$table]['feInterface']['fe_admin_fieldList'].=','.implode(',',array_keys($columnArray));
00233                 }
00234         }
00235 
00251         function addToAllTCAtypes($table,$str,$specificTypesList='',$position='')       {
00252                 global $TCA;
00253 
00254                 $positionArr=t3lib_div::trimExplode(',',$position,1);
00255                 $insert=count($position);
00256 
00257                 t3lib_div::loadTCA($table);
00258                 if (trim($str) && is_array($TCA[$table]) && is_array($TCA[$table]['types']))    {
00259                         foreach($TCA[$table]['types'] as $k => $v)      {
00260                                 if (!$specificTypesList || t3lib_div::inList($specificTypesList,$k))    {
00261                                         if ($insert)    {
00262                                                 $append=true;
00263                                                 $showItem = t3lib_div::trimExplode(',',$TCA[$table]['types'][$k]['showitem'],1);
00264                                                 foreach($showItem as $key => $fieldInfo)        {
00265 
00266                                                         $parts = explode(';',$fieldInfo);
00267                                                         $theField = trim($parts[0]);
00268                                                         $palette = trim($parts[0]).';;'.trim($parts[2]);
00269 
00270                                                                 // insert before: find exact field name or palette with number
00271                                                         if (in_array($theField, $positionArr) || in_array($palette, $positionArr) || in_array('before:'.$theField, $positionArr) || in_array('before:'.$palette, $positionArr)) {
00272                                                                 $showItem[$key]=trim($str).', '.$fieldInfo;
00273                                                                 $append=false;
00274                                                                 break;
00275                                                         }
00276                                                                 // insert after
00277                                                         if (in_array('after:'.$theField, $positionArr) || in_array('after:'.$palette, $positionArr))    {
00278                                                                 $showItem[$key]=$fieldInfo.', '.trim($str);
00279                                                                 $append=false;
00280                                                                 break;
00281                                                         }
00282                                                 }
00283 
00284                                                         // Not found? Then append.
00285                                                 if($append) {
00286                                                         $showItem[]=trim($str);
00287                                                 }
00288 
00289                                                 $TCA[$table]['types'][$k]['showitem']=implode(', ', $showItem);
00290 
00291                                         } else {
00292                                                 $TCA[$table]['types'][$k]['showitem'].=', '.trim($str);
00293                                         }
00294                                 }
00295                         }
00296                 }
00297         }
00298 
00299 
00309         function allowTableOnStandardPages($table)      {
00310                 global $PAGES_TYPES;
00311 
00312                 $PAGES_TYPES['default']['allowedTables'].=','.$table;
00313         }
00314 
00326         function addModule($main,$sub='',$position='',$path='') {
00327                 global $TBE_MODULES;
00328 
00329                 if (isset($TBE_MODULES[$main]) && $sub) {       // If there is already a main module by this name:
00330 
00331                                 // Adding the submodule to the correct position:
00332                         list($place,$modRef)=t3lib_div::trimExplode(':',$position,1);
00333                         $mods = t3lib_div::trimExplode(',',$TBE_MODULES[$main],1);
00334                         if (!in_array($sub,$mods))      {
00335                                 switch(strtolower($place))      {
00336                                         case 'after':
00337                                         case 'before':
00338                                                 $pointer=0;
00339                                                 reset($mods);
00340                                                 while(list($k,$m)=each($mods))  {
00341                                                         if (!strcmp($m,$modRef))        {
00342                                                                 $pointer=strtolower($place)=='after'?$k+1:$k;
00343                                                         }
00344                                                 }
00345                                                 array_splice(
00346                                                         $mods,  // The modules array
00347                                                         $pointer,               // To insert one position from the end of the list
00348                                                         0,              // Don't remove any items, just insert
00349                                                         $sub    // Module to insert
00350                                                 );
00351                                         break;
00352                                         default:
00353                                                 if (strtolower($place)=='top')  {
00354                                                         array_unshift($mods,$sub);
00355                                                 } else {
00356                                                         array_push($mods,$sub);
00357                                                 }
00358                                         break;
00359                                 }
00360                         }
00361                                 // Re-inserting the submodule list:
00362                         $TBE_MODULES[$main]=implode(',',$mods);
00363                 } else {        // Create new main modules with only one submodule, $sub (or none if $sub is blank)
00364                         $TBE_MODULES[$main]=$sub;
00365                 }
00366 
00367                         // Adding path:
00368                 if ($path)      {
00369                         $TBE_MODULES['_PATHS'][$main.($sub?'_'.$sub:'')]=$path;
00370                 }
00371         }
00372 
00389         function insertModuleFunction($modname,$className,$classPath,$title,$MM_key='function',$WS='')  {
00390                 global $TBE_MODULES_EXT;
00391                 $TBE_MODULES_EXT[$modname]['MOD_MENU'][$MM_key][$className]=array(
00392                         'name' => $className,
00393                         'path' => $classPath,
00394                         'title' => $title,
00395                         'ws' => $WS
00396                 );
00397         }
00398 
00408         function addPageTSConfig($content)      {
00409                 global $TYPO3_CONF_VARS;
00410                 $TYPO3_CONF_VARS['BE']['defaultPageTSconfig'].="\n[GLOBAL]\n".$content;
00411         }
00412 
00422         function addUserTSConfig($content)      {
00423                 global $TYPO3_CONF_VARS;
00424                 $TYPO3_CONF_VARS['BE']['defaultUserTSconfig'].="\n[GLOBAL]\n".$content;
00425         }
00426 
00437         function addLLrefForTCAdescr($tca_descr_key,$file_ref)  {
00438                 global $TCA_DESCR;
00439                 if ($tca_descr_key)     {
00440                         if (!is_array($TCA_DESCR[$tca_descr_key]))      {
00441                                 $TCA_DESCR[$tca_descr_key]=array();
00442                         }
00443                         if (!is_array($TCA_DESCR[$tca_descr_key]['refs']))      {
00444                                 $TCA_DESCR[$tca_descr_key]['refs']=array();
00445                         }
00446                         $TCA_DESCR[$tca_descr_key]['refs'][]=$file_ref;
00447                 }
00448         }
00449 
00450 
00451 
00452 
00453 
00454 
00455 
00456 
00457 
00458 
00459 
00460 
00461         /**************************************
00462          *
00463          *       Adding SERVICES features
00464          *
00465          *   @author    René Fritz <r.fritz@colorcube.de>
00466          *
00467          ***************************************/
00468 
00479         function addService($extKey, $serviceType, $serviceKey, $info)  {
00480                 global $T3_SERVICES,$TYPO3_CONF_VARS;
00481 
00482                 // even not available services will be included to make it possible to give the admin a feedback of non-available services.
00483                 // but maybe it's better to move non-available services to a different array??
00484 
00485                 if ($serviceType AND
00486                         !t3lib_div::isFirstPartOfStr($serviceType, 'tx_') AND
00487                         (t3lib_div::isFirstPartOfStr($serviceKey, 'tx_') OR t3lib_div::isFirstPartOfStr($serviceKey, 'user_')) AND
00488                         is_array($info))        {
00489 
00490                         $info['priority'] = max(0,min(100,$info['priority']));
00491 
00492                         $T3_SERVICES[$serviceType][$serviceKey]=$info;
00493 
00494                         $T3_SERVICES[$serviceType][$serviceKey]['extKey'] = $extKey;
00495                         $T3_SERVICES[$serviceType][$serviceKey]['serviceKey'] = $serviceKey;
00496                         $T3_SERVICES[$serviceType][$serviceKey]['serviceType'] = $serviceType;
00497 
00498 
00499                                 // mapping a service key to a service type
00500                                 // all service keys begin with tx_ - service types don't
00501                                 // this way a selection of a special service key as service type is easy
00502                         $T3_SERVICES[$serviceKey][$serviceKey] = &$T3_SERVICES[$serviceType][$serviceKey];
00503 
00504 
00505                                 // change the priority (and other values) from TYPO3_CONF_VARS
00506                                 // $TYPO3_CONF_VARS['T3_SERVICES'][$serviceType][$serviceKey]['priority']
00507                                 // even the activation is possible (a unix service might be possible on windows for some reasons)
00508                         if (is_array($TYPO3_CONF_VARS['T3_SERVICES'][$serviceType][$serviceKey])) {
00509 
00510                                         // no check is done here - there might be configuration values only the service type knows about, so we pass everything
00511                                 $T3_SERVICES[$serviceType][$serviceKey] = array_merge ($T3_SERVICES[$serviceType][$serviceKey],$TYPO3_CONF_VARS['T3_SERVICES'][$serviceType][$serviceKey]);
00512                         }
00513 
00514 
00515                                 // OS check
00516                                 // empty $os means 'not limited to one OS', therefore a check is not needed
00517                         if ($T3_SERVICES[$serviceType][$serviceKey]['available'] AND $T3_SERVICES[$serviceType][$serviceKey]['os']!='') {
00518 
00519                                         // TYPO3_OS is not yet defined
00520                                 $os_type = stristr(PHP_OS,'win')&&!stristr(PHP_OS,'darwin')?'WIN':'UNIX';
00521 
00522                                 $os = t3lib_div::trimExplode(',',strtoupper($T3_SERVICES[$serviceType][$serviceKey]['os']));
00523 
00524                                 if (!in_array($os_type,$os)) {
00525                                         t3lib_extMgm::deactivateService($serviceType, $serviceKey);
00526                                 }
00527                         }
00528 
00529                                 // convert subtype list to array for quicker access
00530                         $T3_SERVICES[$serviceType][$serviceKey]['serviceSubTypes'] = array();
00531                         $serviceSubTypes = t3lib_div::trimExplode(',',$info['subtype']);
00532                         foreach ($serviceSubTypes as $subtype) {
00533                                 $T3_SERVICES[$serviceType][$serviceKey]['serviceSubTypes'][$subtype] = $subtype;
00534                         }
00535                 }
00536         }
00537 
00547         function findService($serviceType, $serviceSubType='', $excludeServiceKeys=array()) {
00548                 global $T3_SERVICES, $T3_VAR, $TYPO3_CONF_VARS;
00549 
00550                 $serviceKey = FALSE;
00551                 $serviceInfo = FALSE;
00552                 $priority = 0;
00553                 $quality = 0;
00554 
00555                 if (!is_array($excludeServiceKeys) ) {
00556                         $excludeServiceKeys = t3lib_div::trimExplode(',', $excludeServiceKeys, 1);
00557                 }
00558 
00559                 if (is_array($T3_SERVICES[$serviceType]))       {
00560                         foreach($T3_SERVICES[$serviceType] as $key => $info)    {
00561 
00562                                 if (in_array($key, $excludeServiceKeys)) {
00563                                         continue;
00564                                 }
00565 
00566                                         // select a subtype randomly
00567                                         // usefull to start a service by service key without knowing his subtypes - for testing purposes
00568                                 if ($serviceSubType=='*') {
00569                                         $serviceSubType = key($info['serviceSubTypes']);
00570                                 }
00571 
00572                                         // this matches empty subtype too
00573                                 if( $info['available'] AND ($info['subtype']==$serviceSubType OR $info['serviceSubTypes'][$serviceSubType]) AND $info['priority']>=$priority ) {
00574 
00575                                                 // has a lower quality than the already found, therefore we skip this service
00576                                         if($info['priority']==$priority AND $info['quality']<$quality) {
00577                                                 continue;
00578                                         }
00579 
00580                                                 // service depends on external programs - check if they exists
00581                                         if(trim($info['exec'])) {
00582                                                 require_once(PATH_t3lib.'class.t3lib_exec.php');
00583 
00584                                                 $executables = t3lib_div::trimExplode(',', $info['exec'],1);
00585                                                 foreach($executables as $executable)    {
00586                                                         if(!t3lib_exec::checkCommand($executable)) {
00587                                                                 t3lib_extMgm::deactivateService($serviceType, $key);
00588                                                                 $info['available']=FALSE;
00589                                                                 break;
00590                                                         }
00591                                                 }
00592                                         }
00593 
00594                                                 // still available after exec check?
00595                                         if($info['available']) {
00596                                                 $serviceKey = $key;
00597                                                 $priority = $info['priority'];
00598                                                 $quality = $info['quality'];
00599                                         }
00600                                 }
00601                         }
00602                 }
00603 
00604                 if ($serviceKey) {
00605                         $serviceInfo = $T3_SERVICES[$serviceType][$serviceKey];
00606                 }
00607                 return $serviceInfo;
00608         }
00609 
00618         function deactivateService($serviceType, $serviceKey) {
00619                 global $T3_SERVICES;
00620 
00621                         // ... maybe it's better to move non-available services to a different array??
00622                 $T3_SERVICES[$serviceType][$serviceKey]['available'] = FALSE;
00623         }
00624 
00625 
00626 
00627 
00628 
00629 
00630 
00631 
00632 
00633 
00634 
00635 
00636 
00637 
00638         /**************************************
00639          *
00640          *       Adding FRONTEND features
00641          *       (related specifically to "cms" extension)
00642          *
00643          ***************************************/
00644 
00657         function addPlugin($itemArray,$type='list_type')        {
00658                 global $TCA;
00659                 t3lib_div::loadTCA('tt_content');
00660                 if (is_array($TCA['tt_content']['columns']) && is_array($TCA['tt_content']['columns'][$type]['config']['items']))       {
00661                         reset($TCA['tt_content']['columns'][$type]['config']['items']);
00662                         while(list($k,$v)=each($TCA['tt_content']['columns'][$type]['config']['items']))        {
00663                                 if (!strcmp($v[1],$itemArray[1]))       {
00664                                         $TCA['tt_content']['columns'][$type]['config']['items'][$k]=$itemArray;
00665                                         return;
00666                                 }
00667                         }
00668                         $TCA['tt_content']['columns'][$type]['config']['items'][]=$itemArray;
00669                 }
00670         }
00671 
00682         function addPiFlexFormValue($piKeyToMatch,$value)       {
00683                 global $TCA;
00684                 t3lib_div::loadTCA('tt_content');
00685 
00686                 if (is_array($TCA['tt_content']['columns']) && is_array($TCA['tt_content']['columns']['pi_flexform']['config']['ds']))  {
00687                         $TCA['tt_content']['columns']['pi_flexform']['config']['ds'][$piKeyToMatch] = $value;
00688                 }
00689         }
00690 
00702         function addToInsertRecords($table,$content_table='tt_content',$content_field='records')        {
00703                 global $TCA;
00704                 t3lib_div::loadTCA($content_table);
00705                 if (is_array($TCA[$content_table]['columns']) && isset($TCA[$content_table]['columns'][$content_field]['config']['allowed']))   {
00706                         $TCA[$content_table]['columns'][$content_field]['config']['allowed'].=','.$table;
00707                 }
00708         }
00709 
00733         function addPItoST43($key,$classFile='',$prefix='',$type='list_type',$cached=0) {
00734                 global $TYPO3_LOADED_EXT;
00735                 $classFile = $classFile ? $classFile : 'pi/class.tx_'.str_replace('_','',$key).$prefix.'.php';
00736                 $cN = t3lib_extMgm::getCN($key);
00737 
00738                         // General plugin:
00739                 if ($cached)    {
00740                         $pluginContent = trim('
00741 includeLibs.'.$cN.$prefix.' = '.$TYPO3_LOADED_EXT[$key]['siteRelPath'].$classFile.'
00742 plugin.'.$cN.$prefix.' = USER
00743 plugin.'.$cN.$prefix.' {
00744   userFunc = '.$cN.$prefix.'->main
00745 }');
00746                 } else {
00747                         $pluginContent = trim('
00748 plugin.'.$cN.$prefix.' = USER_INT
00749 plugin.'.$cN.$prefix.' {
00750   includeLibs = '.$TYPO3_LOADED_EXT[$key]['siteRelPath'].$classFile.'
00751   userFunc = '.$cN.$prefix.'->main
00752 }');
00753                 }
00754                 t3lib_extMgm::addTypoScript($key,'setup','
00755 # Setting '.$key.' plugin TypoScript
00756 '.$pluginContent);
00757 
00758                         // After ST43:
00759                 switch($type)   {
00760                         case 'list_type':
00761                                 $addLine = 'tt_content.list.20.'.$key.$prefix.' = < plugin.'.$cN.$prefix;
00762                         break;
00763                         case 'menu_type':
00764                                 $addLine = 'tt_content.menu.20.'.$key.$prefix.' = < plugin.'.$cN.$prefix;
00765                         break;
00766                         case 'splash_layout':
00767                                 $addLine = 'tt_content.splash.'.$key.$prefix.' = < plugin.'.$cN.$prefix;
00768                         break;
00769                         case 'CType':
00770                                 $addLine = trim('
00771 tt_content.'.$key.$prefix.' = COA
00772 tt_content.'.$key.$prefix.' {
00773         10 = < lib.stdheader
00774         20 = < plugin.'.$cN.$prefix.'
00775 }
00776                                 ');
00777                         break;
00778                         case 'header_layout':
00779                                 $addLine = 'lib.stdheader.10.'.$key.$prefix.' = < plugin.'.$cN.$prefix;
00780                         break;
00781                         case 'includeLib':
00782                                 $addLine = 'page.1000 = < plugin.'.$cN.$prefix;
00783                         break;
00784                         default:
00785                                 $addLine = '';
00786                         break;
00787                 }
00788                 if ($addLine)   {
00789                         t3lib_extMgm::addTypoScript($key,'setup','
00790 # Setting '.$key.' plugin TypoScript
00791 '.$addLine.'
00792 ',43);
00793                 }
00794         }
00795 
00808         function addStaticFile($extKey,$path,$title)    {
00809                 global $TCA;
00810                 t3lib_div::loadTCA('sys_template');
00811                 if ($extKey && $path && is_array($TCA['sys_template']['columns']))      {
00812                         $value = str_replace(',','','EXT:'.$extKey.'/'.$path);
00813                         $itemArray=array(trim($title.' ('.$extKey.')'),$value);
00814                         $TCA['sys_template']['columns']['include_static_file']['config']['items'][]=$itemArray;
00815                 }
00816         }
00817 
00827         function addTypoScriptSetup($content)   {
00828                 global $TYPO3_CONF_VARS;
00829                 $TYPO3_CONF_VARS['FE']['defaultTypoScript_setup'].="\n[GLOBAL]\n".$content;
00830         }
00831 
00841         function addTypoScriptConstants($content)       {
00842                 global $TYPO3_CONF_VARS;
00843                 $TYPO3_CONF_VARS['FE']['defaultTypoScript_constants'].="\n[GLOBAL]\n".$content;
00844         }
00845 
00858         function addTypoScript($key,$type,$content,$afterStaticUid=0)   {
00859                 global $TYPO3_CONF_VARS;
00860 
00861                 if ($type=='setup' || $type=='editorcfg' || $type=='constants')         {
00862                         $content = '
00863 
00864 [GLOBAL]
00865 #############################################
00866 ## TypoScript added by extension "'.$key.'"
00867 #############################################
00868 
00869 '.$content;
00870                         if ($afterStaticUid)    {
00871                                 $TYPO3_CONF_VARS['FE']['defaultTypoScript_'.$type.'.'][$afterStaticUid].=$content;
00872                                 if ($afterStaticUid==43)        {       // If 'content (default)' is targeted, also add to other 'content rendering templates', eg. css_styled_content
00873                                         $TYPO3_CONF_VARS['FE']['defaultTypoScript_'.$type.'.']['cssstyledcontent/static/'].=$content;
00874                                 }
00875                         } else {
00876                                 $TYPO3_CONF_VARS['FE']['defaultTypoScript_'.$type].=$content;
00877                         }
00878                 }
00879         }
00880 
00881 
00882 
00883 
00884 
00885 
00886 
00887 
00888 
00889 
00890 
00891 
00892 
00893 
00894 
00895 
00896 
00897 
00898         /**************************************
00899          *
00900          *       INTERNAL EXTENSION MANAGEMENT:
00901          *
00902          ***************************************/
00903 
00921         function typo3_loadExtensions() {
00922                 global $TYPO3_CONF_VARS;
00923 
00924                         // Full list of extensions includes both required and extList:
00925                 $rawExtList = $TYPO3_CONF_VARS['EXT']['requiredExt'].','.$TYPO3_CONF_VARS['EXT']['extList'];
00926 
00927                         // Empty array as a start.
00928                 $extensions = array();
00929 
00930                         //
00931                 if ($rawExtList)        {
00932                                 // The cached File prefix.
00933                         $cacheFilePrefix = 'temp_CACHED';
00934                                 // Setting the name for the cache files:
00935                         if (intval($TYPO3_CONF_VARS['EXT']['extCache'])==1)     $cacheFilePrefix.= '_ps'.substr(t3lib_div::shortMD5(PATH_site.'|'.$GLOBALS['TYPO_VERSION']),0,4);
00936                         if (intval($TYPO3_CONF_VARS['EXT']['extCache'])==2)     $cacheFilePrefix.= '_'.t3lib_div::shortMD5($rawExtList);
00937 
00938                                 // If cache files available, set cache file prefix and return:
00939                         if ($TYPO3_CONF_VARS['EXT']['extCache'] && t3lib_extMgm::isCacheFilesAvailable($cacheFilePrefix))       {
00940                                         // Return cache file prefix:
00941                                 $extensions['_CACHEFILE'] = $cacheFilePrefix;
00942                         } else {        // ... but if not, configure...
00943 
00944                                         // Prepare reserved filenames:
00945                                 $files = t3lib_div::trimExplode(',','ext_localconf.php,ext_tables.php,ext_tables.sql,ext_tables_static+adt.sql,ext_typoscript_constants.txt,ext_typoscript_editorcfg.txt,ext_typoscript_setup.txt',1);
00946 
00947                                         // Traverse extensions and check their existence:
00948                                 clearstatcache();       // Clear file state cache to make sure we get good results from is_dir()
00949                                 $temp_extensions = array_unique(t3lib_div::trimExplode(',',$rawExtList,1));
00950                                 foreach($temp_extensions as $temp_extKey)       {
00951                                                 // Check local, global and system locations:
00952                                         if (@is_dir(PATH_site.'typo3conf/ext/'.$temp_extKey.'/'))       {
00953                                                 $extensions[$temp_extKey] = array('type'=>'L', 'siteRelPath'=>'typo3conf/ext/'.$temp_extKey.'/', 'typo3RelPath'=>'../typo3conf/ext/'.$temp_extKey.'/');
00954                                         } elseif (@is_dir(PATH_site.TYPO3_mainDir.'ext/'.$temp_extKey.'/'))     {
00955                                                 $extensions[$temp_extKey] = array('type'=>'G', 'siteRelPath'=>TYPO3_mainDir.'ext/'.$temp_extKey.'/', 'typo3RelPath'=>'ext/'.$temp_extKey.'/');
00956                                         } elseif (@is_dir(PATH_site.TYPO3_mainDir.'sysext/'.$temp_extKey.'/'))  {
00957                                                 $extensions[$temp_extKey] = array('type'=>'S', 'siteRelPath'=>TYPO3_mainDir.'sysext/'.$temp_extKey.'/', 'typo3RelPath'=>'sysext/'.$temp_extKey.'/');
00958                                         }
00959 
00960                                                 // If extension was found, check for reserved filenames:
00961                                         if (isset($extensions[$temp_extKey]))   {
00962                                                 foreach($files as $fName)       {
00963                                                         $temp_filename = PATH_site.$extensions[$temp_extKey]['siteRelPath'].trim($fName);
00964                                                         if (is_array($extensions[$temp_extKey]) && @is_file($temp_filename))    {
00965                                                                 $extensions[$temp_extKey][$fName] = $temp_filename;
00966                                                         }
00967                                                 }
00968                                         }
00969                                 }
00970                                 unset($extensions['_CACHEFILE']);
00971 
00972                                         // write cache?
00973                                 if ($TYPO3_CONF_VARS['EXT']['extCache'] &&
00974                                                 @is_dir(PATH_site.TYPO3_mainDir.'sysext/') &&
00975                                                 @is_dir(PATH_site.TYPO3_mainDir.'ext/'))        {       // Must also find global and system extension directories to exist, otherwise caching cannot be allowed (since it is most likely a temporary server problem). This might fix a rare, unrepeatable bug where global/system extensions are not loaded resulting in fatal errors if that is cached!
00976                                         $wrError = t3lib_extMgm::cannotCacheFilesWritable($cacheFilePrefix);
00977                                         if ($wrError)   {
00978                                                 $TYPO3_CONF_VARS['EXT']['extCache']=0;
00979                                         } else {
00980                                                         // Write cache files:
00981                                                 $extensions = t3lib_extMgm::writeCacheFiles($extensions,$cacheFilePrefix);
00982                                         }
00983                                 }
00984                         }
00985                 }
00986 
00987                 return $extensions;
00988         }
00989 
00998         function _makeIncludeHeader($key,$file) {
00999                 return '<?php
01000 ###########################
01001 ## EXTENSION: '.$key.'
01002 ## FILE:      '.$file.'
01003 ###########################
01004 
01005 $_EXTKEY = \''.$key.'\';
01006 $_EXTCONF = $TYPO3_CONF_VARS[\'EXT\'][\'extConf\'][$_EXTKEY];
01007 
01008 ?>';
01009         }
01010 
01019         function isCacheFilesAvailable($cacheFilePrefix)        {
01020                 return
01021                         @is_file(PATH_typo3conf.$cacheFilePrefix.'_ext_localconf.php') &&
01022                         @is_file(PATH_typo3conf.$cacheFilePrefix.'_ext_tables.php');
01023         }
01024 
01032         function isLocalconfWritable()  {
01033                 return @is_writable(PATH_typo3conf) && @is_writable(PATH_typo3conf.'localconf.php');
01034         }
01035 
01045         function cannotCacheFilesWritable($cacheFilePrefix)     {
01046                 $error=array();
01047                 if (!@is_writable(PATH_typo3conf))      {
01048                         $error[]=PATH_typo3conf;
01049                 }
01050                 if (@is_file(PATH_typo3conf.$cacheFilePrefix.'_ext_localconf.php') &&
01051                         !@is_writable(PATH_typo3conf.$cacheFilePrefix.'_ext_localconf.php'))    {
01052                                 $error[]=PATH_typo3conf.$cacheFilePrefix.'_ext_localconf.php';
01053                 }
01054                 if (@is_file(PATH_typo3conf.$cacheFilePrefix.'_ext_tables.php') &&
01055                         !@is_writable(PATH_typo3conf.$cacheFilePrefix.'_ext_tables.php'))       {
01056                                 $error[]=PATH_typo3conf.$cacheFilePrefix.'_ext_tables.php';
01057                 }
01058                 return implode(', ',$error);
01059         }
01060 
01069         function currentCacheFiles()    {
01070                 global $TYPO3_LOADED_EXT;
01071 
01072                 if ($TYPO3_LOADED_EXT['_CACHEFILE'])    {
01073                         if (t3lib_extMgm::isCacheFilesAvailable($TYPO3_LOADED_EXT['_CACHEFILE']))       {
01074                                 return array(
01075                                         PATH_typo3conf.$TYPO3_LOADED_EXT['_CACHEFILE'].'_ext_localconf.php',
01076                                         PATH_typo3conf.$TYPO3_LOADED_EXT['_CACHEFILE'].'_ext_tables.php'
01077                                 );
01078                         }
01079                 }
01080         }
01081 
01092         function writeCacheFiles($extensions,$cacheFilePrefix)  {
01093                         // Making cache files:
01094                 $extensions['_CACHEFILE'] = $cacheFilePrefix;
01095                 $cFiles=array();
01096                 $cFiles['ext_localconf'].='<?php
01097 
01098 $TYPO3_LOADED_EXT = unserialize(stripslashes(\''.addslashes(serialize($extensions)).'\'));
01099 
01100 ?>';
01101 
01102                 reset($extensions);
01103                 while(list($key,$conf)=each($extensions))       {
01104                         if (is_array($conf))    {
01105                                 if ($conf['ext_localconf.php']) {
01106                                         $cFiles['ext_localconf'].=t3lib_extMgm::_makeIncludeHeader($key,$conf['ext_localconf.php']);
01107                                         $cFiles['ext_localconf'].=trim(t3lib_div::getUrl($conf['ext_localconf.php']));
01108                                 }
01109                                 if ($conf['ext_tables.php'])    {
01110                                         $cFiles['ext_tables'].=t3lib_extMgm::_makeIncludeHeader($key,$conf['ext_tables.php']);
01111                                         $cFiles['ext_tables'].=trim(t3lib_div::getUrl($conf['ext_tables.php']));
01112                                 }
01113                         }
01114                 }
01115 
01116                 t3lib_div::writeFile(PATH_typo3conf.$cacheFilePrefix.'_ext_localconf.php',$cFiles['ext_localconf']);
01117                 t3lib_div::writeFile(PATH_typo3conf.$cacheFilePrefix.'_ext_tables.php',$cFiles['ext_tables']);
01118 
01119                 $extensions=array();
01120                 $extensions['_CACHEFILE'] = $cacheFilePrefix;
01121 
01122                 return $extensions;
01123         }
01124 
01130         function removeCacheFiles()     {
01131                 $cacheFiles = t3lib_extMgm::currentCacheFiles();
01132                 $out = 0;
01133                 if (is_array($cacheFiles))      {
01134                         reset($cacheFiles);
01135                         foreach($cacheFiles as $cfile)  {
01136                                 @unlink($cfile);
01137                                 clearstatcache();
01138                                 $out++;
01139                         }
01140                 }
01141                 return $out;
01142         }
01143 }
01144 
01145 ?>


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