1 files changed, 639 insertions, 0 deletions
diff --git a/mod/dokuwiki/vendors/dokuwiki/inc/actions.php b/mod/dokuwiki/vendors/dokuwiki/inc/actions.php
new file mode 100644
index 000000000..ed3c12666
--- /dev/null
+++ b/mod/dokuwiki/vendors/dokuwiki/inc/actions.php
@@ -0,0 +1,639 @@
+<?php
+/**
+ * DokuWiki Actions
+ *
+ * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
+ * @author     Andreas Gohr <andi@splitbrain.org>
+ */
+
+if(!defined('DOKU_INC')) die('meh.');
+require_once(DOKU_INC.'inc/template.php');
+
+
+/**
+ * Call the needed action handlers
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @triggers ACTION_ACT_PREPROCESS
+ * @triggers ACTION_HEADERS_SEND
+ */
+function act_dispatch(){
+  global $INFO;
+  global $ACT;
+  global $ID;
+  global $QUERY;
+  global $lang;
+  global $conf;
+  global $license;
+
+  $preact = $ACT;
+
+  //error_log("dokuact:".$ACT);
+  // give plugins an opportunity to process the action
+  $evt = new Doku_Event('ACTION_ACT_PREPROCESS',$ACT);
+  if ($evt->advise_before()) {
+
+    //sanitize $ACT
+    $ACT = act_clean($ACT);
+
+    //check if searchword was given - else just show
+    $s = cleanID($QUERY);
+    if($ACT == 'search' && empty($s)){
+      $ACT = 'show';
+    }
+
+    //login stuff
+    if(in_array($ACT,array('login','logout'))){
+        $ACT = act_auth($ACT);
+    }
+
+    //check if user is asking to (un)subscribe a page
+    if($ACT == 'subscribe' || $ACT == 'unsubscribe')
+      $ACT = act_subscription($ACT);
+
+    //check if user is asking to (un)subscribe a namespace
+    if($ACT == 'subscribens' || $ACT == 'unsubscribens')
+      $ACT = act_subscriptionns($ACT);
+
+    //check permissions
+    $ACT = act_permcheck($ACT);
+
+    //register
+    $nil = array();
+    if($ACT == 'register' && $_POST['save'] && register()){
+      $ACT = 'login';
+    }
+
+    if ($ACT == 'resendpwd' && act_resendpwd()) {
+      $ACT = 'login';
+    }
+
+    //update user profile
+    if ($ACT == 'profile') {
+      if(!$_SERVER['REMOTE_USER']) {
+        $ACT = 'login';
+      } else {
+        if(updateprofile()) {
+          msg($lang['profchanged'],1);
+          $ACT = 'show';
+        }
+      }
+    }
+
+    //revert
+    if($ACT == 'revert'){
+      if(checkSecurityToken()){
+        $ACT = act_revert($ACT);
+      }else{
+        $ACT = 'show';
+      }
+    }
+
+    //save
+    if($ACT == 'save'){
+      if(checkSecurityToken()){
+        $ACT = act_save($ACT);
+      }else{
+        $ACT = 'show';
+      }
+    }
+
+    //cancel conflicting edit
+    if($ACT == 'cancel')
+      $ACT = 'show';
+
+    //draft deletion
+    if($ACT == 'draftdel')
+      $ACT = act_draftdel($ACT);
+
+    //draft saving on preview
+    if($ACT == 'preview')
+      $ACT = act_draftsave($ACT);
+
+    //edit
+    if(($ACT == 'edit' || $ACT == 'preview') && $INFO['editable']){
+      $ACT = act_edit($ACT);
+    }else{
+      unlock($ID); //try to unlock
+    }
+
+    //handle export
+    if(substr($ACT,0,7) == 'export_')
+      $ACT = act_export($ACT);
+
+    //display some infos
+    if($ACT == 'check'){
+      check();
+      $ACT = 'show';
+    }
+
+    //handle admin tasks
+    if($ACT == 'admin'){
+      // retrieve admin plugin name from $_REQUEST['page']
+      $page = get_input('dokupage');
+      if (!empty($page)) {
+          $pluginlist = plugin_list('admin');
+          if (in_array($page, $pluginlist)) {
+            // attempt to load the plugin
+            if ($plugin =& plugin_load('admin',$page) !== NULL)
+                $plugin->handle();
+          }
+      }
+    }
+
+    // check permissions again - the action may have changed
+    $ACT = act_permcheck($ACT);
+  }  // end event ACTION_ACT_PREPROCESS default action
+  $evt->advise_after();
+  unset($evt);
+  if ($ACT == 'save') {
+    $user = elgg_get_logged_in_user_entity();
+    $doku = current_dokuwiki_entity();
+    $group = get_entity($doku->container_guid);
+    add_to_river('river/dokuwiki', 'wiki/'.$ACT.'/'.$QUERY, $user->getGUID(), $doku->getGUID(), $group->access_id);
+  }
+  // when action 'show', the intial not 'show' and POST, do a redirect
+  if($ACT == 'show' && $preact != 'show' && strtolower($_SERVER['REQUEST_METHOD']) == 'post'){
+    act_redirect($ID,$preact);
+  }
+
+  //call template FIXME: all needed vars available?
+  $headers[] = 'Content-Type: text/html; charset=utf-8';
+  trigger_event('ACTION_HEADERS_SEND',$headers,'act_sendheaders');
+
+  include(template('main.php'));
+  // output for the commands is now handled in inc/templates.php
+  // in function tpl_content()
+}
+
+function act_sendheaders($headers) {
+  foreach ($headers as $hdr) header($hdr);
+}
+
+/**
+ * Sanitize the action command
+ *
+ * Add all allowed commands here.
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function act_clean($act){
+  global $lang;
+  global $conf;
+
+  // check if the action was given as array key
+  if(is_array($act)){
+    list($act) = array_keys($act);
+  }
+
+  //remove all bad chars
+  $act = strtolower($act);
+  $act = preg_replace('/[^1-9a-z_]+/','',$act);
+
+  if($act == 'export_html') $act = 'export_xhtml';
+  if($act == 'export_htmlbody') $act = 'export_xhtmlbody';
+
+  // check if action is disabled
+  if(!actionOK($act)){
+    msg('Command disabled: '.htmlspecialchars($act),-1);
+    return 'show';
+  }
+
+  //disable all acl related commands if ACL is disabled
+  if(!$conf['useacl'] && in_array($act,array('login','logout','register','admin',
+                                             'subscribe','unsubscribe','profile','revert',
+                                             'resendpwd','subscribens','unsubscribens',))){
+    msg('Command unavailable: '.htmlspecialchars($act),-1);
+    return 'show';
+  }
+
+  if(!in_array($act,array('login','logout','register','save','cancel','edit','draft',
+                          'preview','search','show','check','index','revisions',
+                          'diff','recent','backlink','admin','subscribe','revert',
+                          'unsubscribe','profile','resendpwd','recover','wordblock',
+                          'draftdel','subscribens','unsubscribens',)) && substr($act,0,7) != 'export_' ) {
+    msg('Command unknown: '.htmlspecialchars($act),-1);
+    return 'show';
+  }
+  return $act;
+}
+
+/**
+ * Run permissionchecks
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function act_permcheck($act){
+  global $INFO;
+  global $conf;
+//error_log("dokuwiki act:".$act.$INFO['perm']);
+  if(in_array($act,array('save','preview','edit','recover'))){
+    if($INFO['exists']){
+      if($act == 'edit'){
+        //the edit function will check again and do a source show
+        //when no AUTH_EDIT available
+        $permneed = AUTH_READ;
+      }else{
+        $permneed = AUTH_EDIT;
+      }
+    }else{
+      $permneed = AUTH_CREATE;
+    }
+  }elseif(in_array($act,array('login','search','recent','profile'))){
+    $permneed = AUTH_NONE;
+  }elseif($act == 'revert'){
+    $permneed = AUTH_ADMIN;
+    if($INFO['ismanager']) $permneed = AUTH_EDIT;
+  }elseif($act == 'register'){
+    $permneed = AUTH_NONE;
+  }elseif($act == 'resendpwd'){
+    $permneed = AUTH_NONE;
+  }elseif($act == 'admin'){
+    if($INFO['ismanager']){
+	//error_log("is manager");
+      // if the manager has the needed permissions for a certain admin
+      // action is checked later
+      $permneed = AUTH_READ;
+    }else{
+	//error_log("is admin");
+      $permneed = AUTH_ADMIN;
+    }
+  }else{
+    $permneed = AUTH_READ;
+  }
+  if($INFO['perm'] >= $permneed) return $act;
+
+  return 'denied';
+}
+
+/**
+ * Handle 'draftdel'
+ *
+ * Deletes the draft for the current page and user
+ */
+function act_draftdel($act){
+  global $INFO;
+  @unlink($INFO['draft']);
+  $INFO['draft'] = null;
+  return 'show';
+}
+
+/**
+ * Saves a draft on preview
+ *
+ * @todo this currently duplicates code from ajax.php :-/
+ */
+function act_draftsave($act){
+  global $INFO;
+  global $ID;
+  global $conf;
+  if($conf['usedraft'] && $_POST['wikitext']){
+    $draft = array('id'     => $ID,
+                   'prefix' => $_POST['prefix'],
+                   'text'   => $_POST['wikitext'],
+                   'suffix' => $_POST['suffix'],
+                   'date'   => $_POST['date'],
+                   'client' => $INFO['client'],
+                  );
+    $cname = getCacheName($draft['client'].$ID,'.draft');
+    if(io_saveFile($cname,serialize($draft))){
+      $INFO['draft'] = $cname;
+    }
+  }
+  return $act;
+}
+
+/**
+ * Handle 'save'
+ *
+ * Checks for spam and conflicts and saves the page.
+ * Does a redirect to show the page afterwards or
+ * returns a new action.
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function act_save($act){
+  global $ID;
+  global $DATE;
+  global $PRE;
+  global $TEXT;
+  global $SUF;
+  global $SUM;
+
+  //spam check
+  if(checkwordblock())
+    return 'wordblock';
+  //conflict check //FIXME use INFO
+  if($DATE != 0 && @filemtime(wikiFN($ID)) > $DATE )
+    return 'conflict';
+
+  //save it
+  saveWikiText($ID,con($PRE,$TEXT,$SUF,1),$SUM,get_input('minor')); //use pretty mode for con
+  //unlock it
+  unlock($ID);
+
+  //delete draft
+  act_draftdel($act);
+  session_write_close();
+
+  // when done, show page
+  return 'show';
+}
+
+/**
+ * Revert to a certain revision
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function act_revert($act){
+    global $ID;
+    global $REV;
+    global $lang;
+
+    // when no revision is given, delete current one
+    // FIXME this feature is not exposed in the GUI currently
+    $text = '';
+    $sum  = $lang['deleted'];
+    if($REV){
+        $text = rawWiki($ID,$REV);
+        if(!$text) return 'show'; //something went wrong
+        $sum  = $lang['restored'];
+    }
+
+    // spam check
+    if(checkwordblock($Text))
+        return 'wordblock';
+
+    saveWikiText($ID,$text,$sum,false);
+    msg($sum,1);
+
+    //delete any draft
+    act_draftdel($act);
+    session_write_close();
+
+    // when done, show current page
+    $_SERVER['REQUEST_METHOD'] = 'post'; //should force a redirect
+    $REV = '';
+    return 'show';
+}
+
+/**
+ * Do a redirect after receiving post data
+ *
+ * Tries to add the section id as hash mark after section editing
+ */
+function act_redirect($id,$preact){
+  global $PRE;
+  global $TEXT;
+  global $MSG;
+
+  //are there any undisplayed messages? keep them in session for display
+  //on the next page
+  if(isset($MSG) && count($MSG)){
+    //reopen session, store data and close session again
+    @session_start();
+    $_SESSION[DOKU_COOKIE]['msg'] = $MSG;
+    session_write_close();
+  }
+
+  $opts = array(
+    'id'       => $id,
+    'preact'   => $preact
+  );
+  //get section name when coming from section edit
+  if($PRE && preg_match('/^\s*==+([^=\n]+)/',$TEXT,$match)){
+    $check = false; //Byref
+    $opts['fragment'] = sectionID($match[0], $check);
+  }
+
+  trigger_event('ACTION_SHOW_REDIRECT',$opts,'act_redirect_execute');
+}
+
+function act_redirect_execute($opts){
+  $go = wl($opts['id'],'',true);
+  if(isset($opts['fragment'])) $go .= '#'.$opts['fragment'];
+
+  //show it
+  send_redirect($go);
+}
+
+/**
+ * Handle 'login', 'logout'
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function act_auth($act){
+  global $ID;
+  global $INFO;
+
+  //already logged in?
+  if(isset($_SERVER['REMOTE_USER']) && $act=='login'){
+    return 'show';
+  }
+
+  //handle logout
+  if($act=='logout'){
+    $lockedby = checklock($ID); //page still locked?
+    if($lockedby == $_SERVER['REMOTE_USER'])
+      unlock($ID); //try to unlock
+
+    // do the logout stuff
+    auth_logoff();
+
+    // rebuild info array
+    $INFO = pageinfo();
+
+    act_redirect($ID,'login');
+  }
+
+  return $act;
+}
+
+/**
+ * Handle 'edit', 'preview'
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ */
+function act_edit($act){
+  global $ID;
+  global $INFO;
+
+  //check if locked by anyone - if not lock for my self
+  $lockedby = checklock($ID);
+  if($lockedby) return 'locked';
+
+  lock($ID);
+  return $act;
+}
+
+/**
+ * Export a wiki page for various formats
+ *
+ * Triggers ACTION_EXPORT_POSTPROCESS
+ *
+ *  Event data:
+ *    data['id']      -- page id
+ *    data['mode']    -- requested export mode
+ *    data['headers'] -- export headers
+ *    data['output']  -- export output
+ *
+ * @author Andreas Gohr <andi@splitbrain.org>
+ * @author Michael Klier <chi@chimeric.de>
+ */
+function act_export($act){
+  global $ID;
+  global $REV;
+  global $conf;
+  global $lang;
+
+  $pre = '';
+  $post = '';
+  $output = '';
+  $headers = array();
+
+  // search engines: never cache exported docs! (Google only currently)
+  $headers['X-Robots-Tag'] = 'noindex';
+
+  $mode = substr($act,7);
+  switch($mode) {
+    case 'raw':
+      $headers['Content-Type'] = 'text/plain; charset=utf-8';
+      $headers['Content-Disposition'] = 'attachment; filename='.noNS($ID).'.txt';
+      $output = rawWiki($ID,$REV);
+      break;
+    case 'xhtml':
+      $pre .= '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"' . DOKU_LF;
+      $pre .= ' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">' . DOKU_LF;
+      $pre .= '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="'.$conf['lang'].'"' . DOKU_LF;
+      $pre .= ' lang="'.$conf['lang'].'" dir="'.$lang['direction'].'">' . DOKU_LF;
+      $pre .= '<head>' . DOKU_LF;
+      $pre .= '  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />' . DOKU_LF;
+      $pre .= '  <title>'.$ID.'</title>' . DOKU_LF;
+
+      // get metaheaders
+      ob_start();
+      tpl_metaheaders();
+      $pre .= ob_get_clean();
+
+      $pre .= '</head>' . DOKU_LF;
+      $pre .= '<body>' . DOKU_LF;
+      $pre .= '<div class="dokuwiki export">' . DOKU_LF;
+
+      // get toc
+      $pre .= tpl_toc(true);
+
+      $headers['Content-Type'] = 'text/html; charset=utf-8';
+      $output = p_wiki_xhtml($ID,$REV,false);
+
+      $post .= '</div>' . DOKU_LF;
+      $post .= '</body>' . DOKU_LF;
+      $post .= '</html>' . DOKU_LF;
+      break;
+    case 'xhtmlbody':
+      $headers['Content-Type'] = 'text/html; charset=utf-8';
+      $output = p_wiki_xhtml($ID,$REV,false);
+      break;
+    default:
+      $output = p_cached_output(wikiFN($ID,$REV), $mode);
+      $headers = p_get_metadata($ID,"format $mode");
+      break;
+  }
+
+  // prepare event data
+  $data = array();
+  $data['id'] = $ID;
+  $data['mode'] = $mode;
+  $data['headers'] = $headers;
+  $data['output'] =& $output;
+
+  trigger_event('ACTION_EXPORT_POSTPROCESS', $data);
+
+  if(!empty($data['output'])){
+    if(is_array($data['headers'])) foreach($data['headers'] as $key => $val){
+      header("$key: $val");
+    }
+    print $pre.$data['output'].$post;
+    exit;
+  }
+  return 'show';
+}
+
+/**
+ * Handle page 'subscribe', 'unsubscribe'
+ *
+ * @author Steven Danz <steven-danz@kc.rr.com>
+ * @todo   localize
+ */
+function act_subscription($act){
+  global $ID;
+  global $INFO;
+  global $lang;
+
+  $file=metaFN($ID,'.mlist');
+  if ($act=='subscribe' && !$INFO['subscribed']){
+    if ($INFO['userinfo']['mail']){
+      if (io_saveFile($file,$_SERVER['REMOTE_USER']."\n",true)) {
+        $INFO['subscribed'] = true;
+        msg(sprintf($lang[$act.'_success'], $INFO['userinfo']['name'], $ID),1);
+      } else {
+        msg(sprintf($lang[$act.'_error'], $INFO['userinfo']['name'], $ID),1);
+      }
+    } else {
+      msg($lang['subscribe_noaddress']);
+    }
+  } elseif ($act=='unsubscribe' && $INFO['subscribed']){
+    if (io_deleteFromFile($file,$_SERVER['REMOTE_USER']."\n")) {
+      $INFO['subscribed'] = false;
+      msg(sprintf($lang[$act.'_success'], $INFO['userinfo']['name'], $ID),1);
+    } else {
+      msg(sprintf($lang[$act.'_error'], $INFO['userinfo']['name'], $ID),1);
+    }
+  }
+
+  return 'show';
+}
+
+/**
+ * Handle namespace 'subscribe', 'unsubscribe'
+ *
+ */
+function act_subscriptionns($act){
+  global $ID;
+  global $INFO;
+  global $lang;
+
+  if(!getNS($ID)) {
+    $file = metaFN(getNS($ID),'.mlist');
+    $ns = "root";
+  } else {
+    $file = metaFN(getNS($ID),'/.mlist');
+    $ns = getNS($ID);
+  }
+
+  // reuse strings used to display the status of the subscribe action
+  $act_msg = rtrim($act, 'ns');
+
+  if ($act=='subscribens' && !$INFO['subscribedns']){
+    if ($INFO['userinfo']['mail']){
+      if (io_saveFile($file,$_SERVER['REMOTE_USER']."\n",true)) {
+        $INFO['subscribedns'] = true;
+        msg(sprintf($lang[$act_msg.'_success'], $INFO['userinfo']['name'], $ns),1);
+      } else {
+        msg(sprintf($lang[$act_msg.'_error'], $INFO['userinfo']['name'], $ns),1);
+      }
+    } else {
+      msg($lang['subscribe_noaddress']);
+    }
+  } elseif ($act=='unsubscribens' && $INFO['subscribedns']){
+    if (io_deleteFromFile($file,$_SERVER['REMOTE_USER']."\n")) {
+      $INFO['subscribedns'] = false;
+      msg(sprintf($lang[$act_msg.'_success'], $INFO['userinfo']['name'], $ns),1);
+    } else {
+      msg(sprintf($lang[$act_msg.'_error'], $INFO['userinfo']['name'], $ns),1);
+    }
+  }
+
+  return 'show';
+}
+
+//Setup VIM: ex: et ts=2 enc=utf-8 :