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							| @@ -0,0 +1,527 @@ | ||||
| <?php | ||||
| /** | ||||
|  * Information and debugging functions | ||||
|  * | ||||
|  * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html) | ||||
|  * @author     Andreas Gohr <andi@splitbrain.org> | ||||
|  */ | ||||
|  | ||||
| use dokuwiki\HTTP\DokuHTTPClient; | ||||
|  | ||||
| if(!defined('DOKU_MESSAGEURL')){ | ||||
|     if(in_array('ssl', stream_get_transports())) { | ||||
|         define('DOKU_MESSAGEURL','https://update.dokuwiki.org/check/'); | ||||
|     }else{ | ||||
|         define('DOKU_MESSAGEURL','http://update.dokuwiki.org/check/'); | ||||
|     } | ||||
| } | ||||
|  | ||||
| /** | ||||
|  * Check for new messages from upstream | ||||
|  * | ||||
|  * @author Andreas Gohr <andi@splitbrain.org> | ||||
|  */ | ||||
| function checkUpdateMessages(){ | ||||
|     global $conf; | ||||
|     global $INFO; | ||||
|     global $updateVersion; | ||||
|     if(!$conf['updatecheck']) return; | ||||
|     if($conf['useacl'] && !$INFO['ismanager']) return; | ||||
|  | ||||
|     $cf = getCacheName($updateVersion, '.updmsg'); | ||||
|     $lm = @filemtime($cf); | ||||
|     $is_http = substr(DOKU_MESSAGEURL, 0, 5) != 'https'; | ||||
|  | ||||
|     // check if new messages needs to be fetched | ||||
|     if($lm < time()-(60*60*24) || $lm < @filemtime(DOKU_INC.DOKU_SCRIPT)){ | ||||
|         @touch($cf); | ||||
|         dbglog("checkUpdateMessages(): downloading messages to ".$cf.($is_http?' (without SSL)':' (with SSL)')); | ||||
|         $http = new DokuHTTPClient(); | ||||
|         $http->timeout = 12; | ||||
|         $resp = $http->get(DOKU_MESSAGEURL.$updateVersion); | ||||
|         if(is_string($resp) && ($resp == "" || substr(trim($resp), -1) == '%')) { | ||||
|             // basic sanity check that this is either an empty string response (ie "no messages") | ||||
|             // or it looks like one of our messages, not WiFi login or other interposed response | ||||
|             io_saveFile($cf,$resp); | ||||
|         } else { | ||||
|             dbglog("checkUpdateMessages(): unexpected HTTP response received"); | ||||
|         } | ||||
|     }else{ | ||||
|         dbglog("checkUpdateMessages(): messages up to date"); | ||||
|     } | ||||
|  | ||||
|     $data = io_readFile($cf); | ||||
|     // show messages through the usual message mechanism | ||||
|     $msgs = explode("\n%\n",$data); | ||||
|     foreach($msgs as $msg){ | ||||
|         if($msg) msg($msg,2); | ||||
|     } | ||||
| } | ||||
|  | ||||
|  | ||||
| /** | ||||
|  * Return DokuWiki's version (split up in date and type) | ||||
|  * | ||||
|  * @author Andreas Gohr <andi@splitbrain.org> | ||||
|  */ | ||||
| function getVersionData(){ | ||||
|     $version = array(); | ||||
|     //import version string | ||||
|     if(file_exists(DOKU_INC.'VERSION')){ | ||||
|         //official release | ||||
|         $version['date'] = trim(io_readFile(DOKU_INC.'VERSION')); | ||||
|         $version['type'] = 'Release'; | ||||
|     }elseif(is_dir(DOKU_INC.'.git')){ | ||||
|         $version['type'] = 'Git'; | ||||
|         $version['date'] = 'unknown'; | ||||
|  | ||||
|         $inventory = DOKU_INC.'.git/logs/HEAD'; | ||||
|         if(is_file($inventory)){ | ||||
|             $sz   = filesize($inventory); | ||||
|             $seek = max(0,$sz-2000); // read from back of the file | ||||
|             $fh   = fopen($inventory,'rb'); | ||||
|             fseek($fh,$seek); | ||||
|             $chunk = fread($fh,2000); | ||||
|             fclose($fh); | ||||
|             $chunk = trim($chunk); | ||||
|             $chunk = @array_pop(explode("\n",$chunk));   //last log line | ||||
|             $chunk = @array_shift(explode("\t",$chunk)); //strip commit msg | ||||
|             $chunk = explode(" ",$chunk); | ||||
|             array_pop($chunk); //strip timezone | ||||
|             $date = date('Y-m-d',array_pop($chunk)); | ||||
|             if($date) $version['date'] = $date; | ||||
|         } | ||||
|     }else{ | ||||
|         global $updateVersion; | ||||
|         $version['date'] = 'update version '.$updateVersion; | ||||
|         $version['type'] = 'snapshot?'; | ||||
|     } | ||||
|     return $version; | ||||
| } | ||||
|  | ||||
| /** | ||||
|  * Return DokuWiki's version (as a string) | ||||
|  * | ||||
|  * @author Anika Henke <anika@selfthinker.org> | ||||
|  */ | ||||
| function getVersion(){ | ||||
|     $version = getVersionData(); | ||||
|     return $version['type'].' '.$version['date']; | ||||
| } | ||||
|  | ||||
| /** | ||||
|  * Run a few sanity checks | ||||
|  * | ||||
|  * @author Andreas Gohr <andi@splitbrain.org> | ||||
|  */ | ||||
| function check(){ | ||||
|     global $conf; | ||||
|     global $INFO; | ||||
|     /* @var Input $INPUT */ | ||||
|     global $INPUT; | ||||
|  | ||||
|     if ($INFO['isadmin'] || $INFO['ismanager']){ | ||||
|         msg('DokuWiki version: '.getVersion(),1); | ||||
|  | ||||
|         if(version_compare(phpversion(),'5.6.0','<')){ | ||||
|             msg('Your PHP version is too old ('.phpversion().' vs. 5.6.0+ needed)',-1); | ||||
|         }else{ | ||||
|             msg('PHP version '.phpversion(),1); | ||||
|         } | ||||
|     } else { | ||||
|         if(version_compare(phpversion(),'5.6.0','<')){ | ||||
|             msg('Your PHP version is too old',-1); | ||||
|         } | ||||
|     } | ||||
|  | ||||
|     $mem = (int) php_to_byte(ini_get('memory_limit')); | ||||
|     if($mem){ | ||||
|         if ($mem === -1) { | ||||
|             msg('PHP memory is unlimited', 1); | ||||
|         } else if ($mem < 16777216) { | ||||
|             msg('PHP is limited to less than 16MB RAM (' . filesize_h($mem) . '). | ||||
|             Increase memory_limit in php.ini', -1); | ||||
|         } else if ($mem < 20971520) { | ||||
|             msg('PHP is limited to less than 20MB RAM (' . filesize_h($mem) . '), | ||||
|                 you might encounter problems with bigger pages. Increase memory_limit in php.ini', -1); | ||||
|         } else if ($mem < 33554432) { | ||||
|             msg('PHP is limited to less than 32MB RAM (' . filesize_h($mem) . '), | ||||
|                 but that should be enough in most cases. If not, increase memory_limit in php.ini', 0); | ||||
|         } else { | ||||
|             msg('More than 32MB RAM (' . filesize_h($mem) . ') available.', 1); | ||||
|         } | ||||
|     } | ||||
|  | ||||
|     if(is_writable($conf['changelog'])){ | ||||
|         msg('Changelog is writable',1); | ||||
|     }else{ | ||||
|         if (file_exists($conf['changelog'])) { | ||||
|             msg('Changelog is not writable',-1); | ||||
|         } | ||||
|     } | ||||
|  | ||||
|     if (isset($conf['changelog_old']) && file_exists($conf['changelog_old'])) { | ||||
|         msg('Old changelog exists', 0); | ||||
|     } | ||||
|  | ||||
|     if (file_exists($conf['changelog'].'_failed')) { | ||||
|         msg('Importing old changelog failed', -1); | ||||
|     } else if (file_exists($conf['changelog'].'_importing')) { | ||||
|         msg('Importing old changelog now.', 0); | ||||
|     } else if (file_exists($conf['changelog'].'_import_ok')) { | ||||
|         msg('Old changelog imported', 1); | ||||
|         if (!plugin_isdisabled('importoldchangelog')) { | ||||
|             msg('Importoldchangelog plugin not disabled after import', -1); | ||||
|         } | ||||
|     } | ||||
|  | ||||
|     if(is_writable(DOKU_CONF)){ | ||||
|         msg('conf directory is writable',1); | ||||
|     }else{ | ||||
|         msg('conf directory is not writable',-1); | ||||
|     } | ||||
|  | ||||
|     if($conf['authtype'] == 'plain'){ | ||||
|         global $config_cascade; | ||||
|         if(is_writable($config_cascade['plainauth.users']['default'])){ | ||||
|             msg('conf/users.auth.php is writable',1); | ||||
|         }else{ | ||||
|             msg('conf/users.auth.php is not writable',0); | ||||
|         } | ||||
|     } | ||||
|  | ||||
|     if(function_exists('mb_strpos')){ | ||||
|         if(defined('UTF8_NOMBSTRING')){ | ||||
|             msg('mb_string extension is available but will not be used',0); | ||||
|         }else{ | ||||
|             msg('mb_string extension is available and will be used',1); | ||||
|             if(ini_get('mbstring.func_overload') != 0){ | ||||
|                 msg('mb_string function overloading is enabled, this will cause problems and should be disabled',-1); | ||||
|             } | ||||
|         } | ||||
|     }else{ | ||||
|         msg('mb_string extension not available - PHP only replacements will be used',0); | ||||
|     } | ||||
|  | ||||
|     if (!UTF8_PREGSUPPORT) { | ||||
|         msg('PHP is missing UTF-8 support in Perl-Compatible Regular Expressions (PCRE)', -1); | ||||
|     } | ||||
|     if (!UTF8_PROPERTYSUPPORT) { | ||||
|         msg('PHP is missing Unicode properties support in Perl-Compatible Regular Expressions (PCRE)', -1); | ||||
|     } | ||||
|  | ||||
|     $loc = setlocale(LC_ALL, 0); | ||||
|     if(!$loc){ | ||||
|         msg('No valid locale is set for your PHP setup. You should fix this',-1); | ||||
|     }elseif(stripos($loc,'utf') === false){ | ||||
|         msg('Your locale <code>'.hsc($loc).'</code> seems not to be a UTF-8 locale, | ||||
|              you should fix this if you encounter problems.',0); | ||||
|     }else{ | ||||
|         msg('Valid locale '.hsc($loc).' found.', 1); | ||||
|     } | ||||
|  | ||||
|     if($conf['allowdebug']){ | ||||
|         msg('Debugging support is enabled. If you don\'t need it you should set $conf[\'allowdebug\'] = 0',-1); | ||||
|     }else{ | ||||
|         msg('Debugging support is disabled',1); | ||||
|     } | ||||
|  | ||||
|     if($INFO['userinfo']['name']){ | ||||
|         msg('You are currently logged in as '.$INPUT->server->str('REMOTE_USER').' ('.$INFO['userinfo']['name'].')',0); | ||||
|         msg('You are part of the groups '.join($INFO['userinfo']['grps'],', '),0); | ||||
|     }else{ | ||||
|         msg('You are currently not logged in',0); | ||||
|     } | ||||
|  | ||||
|     msg('Your current permission for this page is '.$INFO['perm'],0); | ||||
|  | ||||
|     if (file_exists($INFO['filepath']) && is_writable($INFO['filepath'])) { | ||||
|         msg('The current page is writable by the webserver', 1); | ||||
|     } elseif (!file_exists($INFO['filepath']) && is_writable(dirname($INFO['filepath']))) { | ||||
|         msg('The current page can be created by the webserver', 1); | ||||
|     } else { | ||||
|         msg('The current page is not writable by the webserver', -1); | ||||
|     } | ||||
|  | ||||
|     if ($INFO['writable']) { | ||||
|         msg('The current page is writable by you', 1); | ||||
|     } else { | ||||
|         msg('The current page is not writable by you', -1); | ||||
|     } | ||||
|  | ||||
|     // Check for corrupted search index | ||||
|     $lengths = idx_listIndexLengths(); | ||||
|     $index_corrupted = false; | ||||
|     foreach ($lengths as $length) { | ||||
|         if (count(idx_getIndex('w', $length)) != count(idx_getIndex('i', $length))) { | ||||
|             $index_corrupted = true; | ||||
|             break; | ||||
|         } | ||||
|     } | ||||
|  | ||||
|     foreach (idx_getIndex('metadata', '') as $index) { | ||||
|         if (count(idx_getIndex($index.'_w', '')) != count(idx_getIndex($index.'_i', ''))) { | ||||
|             $index_corrupted = true; | ||||
|             break; | ||||
|         } | ||||
|     } | ||||
|  | ||||
|     if($index_corrupted) { | ||||
|         msg( | ||||
|             'The search index is corrupted. It might produce wrong results and most | ||||
|                 probably needs to be rebuilt. See | ||||
|                 <a href="http://www.dokuwiki.org/faq:searchindex">faq:searchindex</a> | ||||
|                 for ways to rebuild the search index.', -1 | ||||
|         ); | ||||
|     } elseif(!empty($lengths)) { | ||||
|         msg('The search index seems to be working', 1); | ||||
|     } else { | ||||
|         msg( | ||||
|             'The search index is empty. See | ||||
|                 <a href="http://www.dokuwiki.org/faq:searchindex">faq:searchindex</a> | ||||
|                 for help on how to fix the search index. If the default indexer | ||||
|                 isn\'t used or the wiki is actually empty this is normal.' | ||||
|         ); | ||||
|     } | ||||
|  | ||||
|     // rough time check | ||||
|     $http = new DokuHTTPClient(); | ||||
|     $http->max_redirect = 0; | ||||
|     $http->timeout = 3; | ||||
|     $http->sendRequest('http://www.dokuwiki.org', '', 'HEAD'); | ||||
|     $now = time(); | ||||
|     if(isset($http->resp_headers['date'])) { | ||||
|         $time = strtotime($http->resp_headers['date']); | ||||
|         $diff = $time - $now; | ||||
|  | ||||
|         if(abs($diff) < 4) { | ||||
|             msg("Server time seems to be okay. Diff: {$diff}s", 1); | ||||
|         } else { | ||||
|             msg("Your server's clock seems to be out of sync! | ||||
|                  Consider configuring a sync with a NTP server.  Diff: {$diff}s"); | ||||
|         } | ||||
|     } | ||||
|  | ||||
| } | ||||
|  | ||||
| /** | ||||
|  * Display a message to the user | ||||
|  * | ||||
|  * If HTTP headers were not sent yet the message is added | ||||
|  * to the global message array else it's printed directly | ||||
|  * using html_msgarea() | ||||
|  * | ||||
|  * Triggers INFOUTIL_MSG_SHOW | ||||
|  * | ||||
|  * @see    html_msgarea() | ||||
|  * @param string $message | ||||
|  * @param int    $lvl   -1 = error, 0 = info, 1 = success, 2 = notify | ||||
|  * @param string $line  line number | ||||
|  * @param string $file  file number | ||||
|  * @param int    $allow who's allowed to see the message, see MSG_* constants | ||||
|  */ | ||||
| function msg($message,$lvl=0,$line='',$file='',$allow=MSG_PUBLIC){ | ||||
|     global $MSG, $MSG_shown; | ||||
|     static $errors = [ | ||||
|         -1 => 'error', | ||||
|         0 => 'info', | ||||
|         1 => 'success', | ||||
|         2 => 'notify', | ||||
|     ]; | ||||
|  | ||||
|     $msgdata = [ | ||||
|         'msg' => $message, | ||||
|         'lvl' => $errors[$lvl], | ||||
|         'allow' => $allow, | ||||
|         'line' => $line, | ||||
|         'file' => $file, | ||||
|     ]; | ||||
|  | ||||
|     $evt = new \dokuwiki\Extension\Event('INFOUTIL_MSG_SHOW', $msgdata); | ||||
|     if ($evt->advise_before()) { | ||||
|         /* Show msg normally - event could suppress message show */ | ||||
|         if($msgdata['line'] || $msgdata['file']) { | ||||
|             $basename = \dokuwiki\Utf8\PhpString::basename($msgdata['file']); | ||||
|             $msgdata['msg'] .=' ['.$basename.':'.$msgdata['line'].']'; | ||||
|         } | ||||
|  | ||||
|         if(!isset($MSG)) $MSG = array(); | ||||
|         $MSG[] = $msgdata; | ||||
|         if(isset($MSG_shown) || headers_sent()){ | ||||
|             if(function_exists('html_msgarea')){ | ||||
|                 html_msgarea(); | ||||
|             }else{ | ||||
|                 print "ERROR(".$msgdata['lvl'].") ".$msgdata['msg']."\n"; | ||||
|             } | ||||
|             unset($GLOBALS['MSG']); | ||||
|         } | ||||
|     } | ||||
|     $evt->advise_after(); | ||||
|     unset($evt); | ||||
| } | ||||
| /** | ||||
|  * Determine whether the current user is allowed to view the message | ||||
|  * in the $msg data structure | ||||
|  * | ||||
|  * @param  $msg   array    dokuwiki msg structure | ||||
|  *                         msg   => string, the message | ||||
|  *                         lvl   => int, level of the message (see msg() function) | ||||
|  *                         allow => int, flag used to determine who is allowed to see the message | ||||
|  *                                       see MSG_* constants | ||||
|  * @return bool | ||||
|  */ | ||||
| function info_msg_allowed($msg){ | ||||
|     global $INFO, $auth; | ||||
|  | ||||
|     // is the message public? - everyone and anyone can see it | ||||
|     if (empty($msg['allow']) || ($msg['allow'] == MSG_PUBLIC)) return true; | ||||
|  | ||||
|     // restricted msg, but no authentication | ||||
|     if (empty($auth)) return false; | ||||
|  | ||||
|     switch ($msg['allow']){ | ||||
|         case MSG_USERS_ONLY: | ||||
|             return !empty($INFO['userinfo']); | ||||
|  | ||||
|         case MSG_MANAGERS_ONLY: | ||||
|             return $INFO['ismanager']; | ||||
|  | ||||
|         case MSG_ADMINS_ONLY: | ||||
|             return $INFO['isadmin']; | ||||
|  | ||||
|         default: | ||||
|             trigger_error('invalid msg allow restriction.  msg="'.$msg['msg'].'" allow='.$msg['allow'].'"', | ||||
|                           E_USER_WARNING); | ||||
|             return $INFO['isadmin']; | ||||
|     } | ||||
|  | ||||
|     return false; | ||||
| } | ||||
|  | ||||
| /** | ||||
|  * print debug messages | ||||
|  * | ||||
|  * little function to print the content of a var | ||||
|  * | ||||
|  * @author Andreas Gohr <andi@splitbrain.org> | ||||
|  * | ||||
|  * @param string $msg | ||||
|  * @param bool $hidden | ||||
|  */ | ||||
| function dbg($msg,$hidden=false){ | ||||
|     if($hidden){ | ||||
|         echo "<!--\n"; | ||||
|         print_r($msg); | ||||
|         echo "\n-->"; | ||||
|     }else{ | ||||
|         echo '<pre class="dbg">'; | ||||
|         echo hsc(print_r($msg,true)); | ||||
|         echo '</pre>'; | ||||
|     } | ||||
| } | ||||
|  | ||||
| /** | ||||
|  * Print info to a log file | ||||
|  * | ||||
|  * @author Andreas Gohr <andi@splitbrain.org> | ||||
|  * | ||||
|  * @param string $msg | ||||
|  * @param string $header | ||||
|  */ | ||||
| function dbglog($msg,$header=''){ | ||||
|     global $conf; | ||||
|     /* @var Input $INPUT */ | ||||
|     global $INPUT; | ||||
|  | ||||
|     // The debug log isn't automatically cleaned thus only write it when | ||||
|     // debugging has been enabled by the user. | ||||
|     if($conf['allowdebug'] !== 1) return; | ||||
|     if(is_object($msg) || is_array($msg)){ | ||||
|         $msg = print_r($msg,true); | ||||
|     } | ||||
|  | ||||
|     if($header) $msg = "$header\n$msg"; | ||||
|  | ||||
|     $file = $conf['cachedir'].'/debug.log'; | ||||
|     $fh = fopen($file,'a'); | ||||
|     if($fh){ | ||||
|         fwrite($fh,date('H:i:s ').$INPUT->server->str('REMOTE_ADDR').': '.$msg."\n"); | ||||
|         fclose($fh); | ||||
|     } | ||||
| } | ||||
|  | ||||
| /** | ||||
|  * Log accesses to deprecated fucntions to the debug log | ||||
|  * | ||||
|  * @param string $alternative The function or method that should be used instead | ||||
|  * @triggers INFO_DEPRECATION_LOG | ||||
|  */ | ||||
| function dbg_deprecated($alternative = '') { | ||||
|     \dokuwiki\Debug\DebugHelper::dbgDeprecatedFunction($alternative, 2); | ||||
| } | ||||
|  | ||||
| /** | ||||
|  * Print a reversed, prettyprinted backtrace | ||||
|  * | ||||
|  * @author Gary Owen <gary_owen@bigfoot.com> | ||||
|  */ | ||||
| function dbg_backtrace(){ | ||||
|     // Get backtrace | ||||
|     $backtrace = debug_backtrace(); | ||||
|  | ||||
|     // Unset call to debug_print_backtrace | ||||
|     array_shift($backtrace); | ||||
|  | ||||
|     // Iterate backtrace | ||||
|     $calls = array(); | ||||
|     $depth = count($backtrace) - 1; | ||||
|     foreach ($backtrace as $i => $call) { | ||||
|         $location = $call['file'] . ':' . $call['line']; | ||||
|         $function = (isset($call['class'])) ? | ||||
|             $call['class'] . $call['type'] . $call['function'] : $call['function']; | ||||
|  | ||||
|         $params = array(); | ||||
|         if (isset($call['args'])){ | ||||
|             foreach($call['args'] as $arg){ | ||||
|                 if(is_object($arg)){ | ||||
|                     $params[] = '[Object '.get_class($arg).']'; | ||||
|                 }elseif(is_array($arg)){ | ||||
|                     $params[] = '[Array]'; | ||||
|                 }elseif(is_null($arg)){ | ||||
|                     $params[] = '[NULL]'; | ||||
|                 }else{ | ||||
|                     $params[] = (string) '"'.$arg.'"'; | ||||
|                 } | ||||
|             } | ||||
|         } | ||||
|         $params = implode(', ',$params); | ||||
|  | ||||
|         $calls[$depth - $i] = sprintf('%s(%s) called at %s', | ||||
|                 $function, | ||||
|                 str_replace("\n", '\n', $params), | ||||
|                 $location); | ||||
|     } | ||||
|     ksort($calls); | ||||
|  | ||||
|     return implode("\n", $calls); | ||||
| } | ||||
|  | ||||
| /** | ||||
|  * Remove all data from an array where the key seems to point to sensitive data | ||||
|  * | ||||
|  * This is used to remove passwords, mail addresses and similar data from the | ||||
|  * debug output | ||||
|  * | ||||
|  * @author Andreas Gohr <andi@splitbrain.org> | ||||
|  * | ||||
|  * @param array $data | ||||
|  */ | ||||
| function debug_guard(&$data){ | ||||
|     foreach($data as $key => $value){ | ||||
|         if(preg_match('/(notify|pass|auth|secret|ftp|userinfo|token|buid|mail|proxy)/i',$key)){ | ||||
|             $data[$key] = '***'; | ||||
|             continue; | ||||
|         } | ||||
|         if(is_array($value)) debug_guard($data[$key]); | ||||
|     } | ||||
| } | ||||
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