installed dokuwiki, added to navbar, updated news

1 files changed, 530 insertions, 0 deletions

diff --git a/wiki/inc/infoutils.php b/wiki/inc/infoutils.php
new file mode 100644
index 0000000..57f89e5
--- /dev/null
+++ b/wiki/inc/infoutils.php
@@ -0,0 +1,530 @@
+<?php
+/**
+ * Information and debugging functions
+ *
+ * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
+ * @author     Andreas Gohr <andi@splitbrain.org>
+ */
+if(!defined('DOKU_INC')) die('meh.');
+
+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($mem < 16777216){
+            msg('PHP is limited to less than 16MB RAM ('.$mem.' bytes). Increase memory_limit in php.ini',-1);
+        }elseif($mem < 20971520){
+            msg('PHP is limited to less than 20MB RAM ('.$mem.' bytes), you might encounter problems with bigger pages. Increase memory_limit in php.ini',-1);
+        }elseif($mem < 33554432){
+            msg('PHP is limited to less than 32MB RAM ('.$mem.' bytes), but that should be enough in most cases. If not, increase memory_limit in php.ini',0);
+        }else{
+            msg('More than 32MB RAM ('.$mem.' bytes) available.',1);
+        }
+    }
+
+    if(is_writable($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(is_writable($INFO['filepath'])){
+        msg('The current page is writable by the webserver',0);
+    }else{
+        msg('The current page is not writable by the webserver',0);
+    }
+
+    if($INFO['writable']){
+        msg('The current page is writable by you',0);
+    }else{
+        msg('The current page is not writable by you',0);
+    }
+
+    // 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");
+        }
+    }
+
+}
+
+/**
+ * print a message
+ *
+ * If HTTP headers were not sent yet the message is added
+ * to the global message array else it's printed directly
+ * using html_msgarea()
+ *
+ *
+ * Levels can be:
+ *
+ * -1 error
+ *  0 info
+ *  1 success
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @see    html_msgarea
+ */
+
+define('MSG_PUBLIC', 0);
+define('MSG_USERS_ONLY', 1);
+define('MSG_MANAGERS_ONLY',2);
+define('MSG_ADMINS_ONLY',4);
+
+/**
+ * Display a message to the user
+ *
+ * @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;
+    $errors = array();
+    $errors[-1] = 'error';
+    $errors[0]  = 'info';
+    $errors[1]  = 'success';
+    $errors[2]  = 'notify';
+
+    if($line || $file) $message.=' ['.utf8_basename($file).':'.$line.']';
+
+    if(!isset($MSG)) $MSG = array();
+    $MSG[]=array('lvl' => $errors[$lvl], 'msg' => $message, 'allow' => $allow);
+    if(isset($MSG_shown) || headers_sent()){
+        if(function_exists('html_msgarea')){
+            html_msgarea();
+        }else{
+            print "ERROR($lvl) $message";
+        }
+        unset($GLOBALS['MSG']);
+    }
+}
+/**
+ * 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 $alternative The function or method that should be used instead
+ */
+function dbg_deprecated($alternative = '') {
+    global $conf;
+    if(!$conf['allowdebug']) return;
+
+    $backtrace = debug_backtrace();
+    array_shift($backtrace);
+    $self = array_shift($backtrace);
+    $call = array_shift($backtrace);
+
+    $called = trim($self['class'].'::'.$self['function'].'()', ':');
+    $caller = trim($call['class'].'::'.$call['function'].'()', ':');
+
+    $msg = $called.' is deprecated. It was called from ';
+    $msg .= $caller.' in '.$call['file'].':'.$call['line'];
+    if($alternative) {
+        $msg .= ' '.$alternative.' should be used instead!';
+    }
+
+    dbglog($msg);
+}
+
+/**
+ * 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]);
+    }
+}