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path: root/lib/dokuwiki/inc/template.php
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<?php
/**
 * DokuWiki template functions
 *
 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author     Andreas Gohr <andi@splitbrain.org>
 */

if(!defined('DOKU_INC')) die('meh.');

/**
 * Returns the path to the given template, uses
 * default one if the custom version doesn't exist.
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function template($tpl){
  global $conf;

  if(@is_readable(DOKU_INC.'lib/tpl/'.$conf['template'].'/'.$tpl))
    return DOKU_INC.'lib/tpl/'.$conf['template'].'/'.$tpl;

  return DOKU_INC.'lib/tpl/default/'.$tpl;
}

/**
 * Print the content
 *
 * This function is used for printing all the usual content
 * (defined by the global $ACT var) by calling the appropriate
 * outputfunction(s) from html.php
 *
 * Everything that doesn't use the main template file isn't
 * handled by this function. ACL stuff is not done here either.
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */

function tpl_content($prependTOC=true) {
    global $ACT;
    global $INFO;
    $INFO['prependTOC'] = $prependTOC;

    ob_start();
    trigger_event('TPL_ACT_RENDER',$ACT,'tpl_content_core');
    $html_output = ob_get_clean();
    trigger_event('TPL_CONTENT_DISPLAY',$html_output,'ptln');

    return !empty($html_output);
}

function tpl_content_core(){
  global $ACT;
  global $TEXT;
  global $PRE;
  global $SUF;
  global $SUM;
  global $IDX;

  switch($ACT){
    case 'show':
      html_show();
      break;
    case 'preview':
      html_edit($TEXT);
      html_show($TEXT);
      break;
    case 'recover':
      html_edit($TEXT);
      break;
    case 'edit':
      html_edit();
      break;
    case 'draft':
      html_draft();
      break;
    case 'wordblock':
      html_edit($TEXT,'wordblock');
      break;
    case 'search':
      html_search();
      break;
    case 'revisions':
      $first = isset($_REQUEST['first']) ? intval($_REQUEST['first']) : 0;
      html_revisions($first);
      break;
    case 'diff':
      html_diff();
      break;
    case 'recent':
      if (is_array($_REQUEST['first'])) {
        $_REQUEST['first'] = array_keys($_REQUEST['first']);
        $_REQUEST['first'] = $_REQUEST['first'][0];
      }
      $first = is_numeric($_REQUEST['first']) ? intval($_REQUEST['first']) : 0;
      html_recent($first);
      break;
    case 'index':
      html_index($IDX); #FIXME can this be pulled from globals? is it sanitized correctly?
      break;
    case 'backlink':
      html_backlinks();
      break;
    case 'conflict':
      html_conflict(con($PRE,$TEXT,$SUF),$SUM);
      html_diff(con($PRE,$TEXT,$SUF),false);
      break;
    case 'locked':
      html_locked();
      html_edit();
      break;
    case 'login':
      html_login();
      break;
    case 'register':
      html_register();
      break;
    case 'resendpwd':
      html_resendpwd();
      break;
    case 'denied':
      print p_locale_xhtml('denied');
      break;
    case 'profile' :
      html_updateprofile();
      break;
    case 'admin':
      tpl_admin();
      break;
    default:
      $evt = new Doku_Event('TPL_ACT_UNKNOWN',$ACT);
      if ($evt->advise_before())
        msg("Failed to handle command: ".hsc($ACT),-1);
      $evt->advise_after();
      unset($evt);
      return false;
  }
  return true;
}

/**
 * Places the TOC where the function is called
 *
 * If you use this you most probably want to call tpl_content with
 * a false argument
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_toc($return=false){
    global $TOC;
    global $ACT;
    global $ID;
    global $REV;
    global $INFO;
    global $conf;
    $toc = array();

    if(is_array($TOC)){
        // if a TOC was prepared in global scope, always use it
        $toc = $TOC;
    }elseif(($ACT == 'show' || substr($ACT,0,6) == 'export') && !$REV && $INFO['exists']){
        // get TOC from metadata, render if neccessary
        $meta = p_get_metadata($ID, false, true);
        if(isset($meta['internal']['toc'])){
            $tocok = $meta['internal']['toc'];
        }else{
            $tocok = true;
        }
        $toc   = $meta['description']['tableofcontents'];
        if(!$tocok || !is_array($toc) || !$conf['tocminheads'] || count($toc) < $conf['tocminheads']){
            $toc = array();
        }
    }elseif($ACT == 'admin'){
        // try to load admin plugin TOC FIXME: duplicates code from tpl_admin
        $plugin = null;
	$page = get_input('dokupage');
        if (!empty($page)) {
            $pluginlist = plugin_list('admin');
            if (in_array($page, $pluginlist)) {
                // attempt to load the plugin
                $plugin =& plugin_load('admin',$page);
            }
        }
        if ( ($plugin !== null) &&
             (!$plugin->forAdminOnly() || $INFO['isadmin']) ){
            $toc = $plugin->getTOC();
            $TOC = $toc; // avoid later rebuild
        }
    }

    trigger_event('TPL_TOC_RENDER', $toc, NULL, false);
    $html = html_TOC($toc);
    if($return) return $html;
    echo $html;
}

/**
 * Handle the admin page contents
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_admin(){
    global $INFO;
    global $TOC;

    $plugin = null;
    $page = get_input('dokupage');
    if (!empty($page)) {
        $pluginlist = plugin_list('admin');

        if (in_array($page, $pluginlist)) {

          // attempt to load the plugin
          $plugin =& plugin_load('admin',$page);
        }
    }

    if ($plugin !== null){
        if($plugin->forAdminOnly() && !$INFO['isadmin']){
            msg('For admins only',-1);
            html_admin();
        }else{
            if(!is_array($TOC)) $TOC = $plugin->getTOC(); //if TOC wasn't requested yet
            if($INFO['prependTOC']) tpl_toc();
            $plugin->html();
        }
    }else{
        html_admin();
    }
    return true;
}

/**
 * Print the correct HTML meta headers
 *
 * This has to go into the head section of your template.
 *
 * @triggers TPL_METAHEADER_OUTPUT
 * @param  boolean $alt Should feeds and alternative format links be added?
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_metaheaders($alt=true){
  global $ID;
  global $REV;
  global $INFO;
  global $JSINFO;
  global $ACT;
  global $QUERY;
  global $lang;
  global $conf;
  $it=2;

  // prepare the head array
  $head = array();

  // prepare seed for js and css 
  $tseed = 0;
  $depends = getConfigFiles('main');
  foreach($depends as $f) {
      $time = @filemtime($f);
      if($time > $tseed) $tseed = $time;
  }

  // the usual stuff
  $head['meta'][] = array( 'name'=>'generator', 'content'=>'DokuWiki '.getVersion() );
  $head['link'][] = array( 'rel'=>'search', 'type'=>'application/opensearchdescription+xml',
                           'href'=>DOKU_BASE.'lib/exe/opensearch.php', 'title'=>$conf['title'] );
  $head['link'][] = array( 'rel'=>'start', 'href'=>DOKU_BASE );
  if(actionOK('index')){
    $head['link'][] = array( 'rel'=>'contents', 'href'=> wl($ID,'do=index',false,'&'),
                           'title'=>$lang['btn_index'] );
  }

  if($alt){
    $head['link'][] = array( 'rel'=>'alternate', 'type'=>'application/rss+xml',
                             'title'=>'Recent Changes', 'href'=>DOKU_BASE.'feed.php');
    $head['link'][] = array( 'rel'=>'alternate', 'type'=>'application/rss+xml',
                             'title'=>'Current Namespace',
                             'href'=>DOKU_BASE.'feed.php?mode=list&ns='.$INFO['namespace']);
    if(($ACT == 'show' || $ACT == 'search') && $INFO['writable']){
        $head['link'][] = array( 'rel'=>'edit',
                                 'title'=>$lang['btn_edit'],
                                 'href'=> wl($ID,'do=edit',false,'&'));
    }

    if($ACT == 'search'){
      $head['link'][] = array( 'rel'=>'alternate', 'type'=>'application/rss+xml',
                               'title'=>'Search Result',
                               'href'=>DOKU_BASE.'feed.php?mode=search&q='.$QUERY);
    }

    if(actionOK('export_xhtml')){
      $head['link'][] = array( 'rel'=>'alternate', 'type'=>'text/html', 'title'=>'Plain HTML',
                               'href'=>exportlink($ID, 'xhtml', '', false, '&'));
    }

    if(actionOK('export_raw')){
      $head['link'][] = array( 'rel'=>'alternate', 'type'=>'text/plain', 'title'=>'Wiki Markup',
                               'href'=>exportlink($ID, 'raw', '', false, '&'));
    }
  }

  // setup robot tags apropriate for different modes
  if( ($ACT=='show' || $ACT=='export_xhtml') && !$REV){
    if($INFO['exists']){
      //delay indexing:
      if((time() - $INFO['lastmod']) >= $conf['indexdelay']){
        $head['meta'][] = array( 'name'=>'robots', 'content'=>'index,follow');
      }else{
        $head['meta'][] = array( 'name'=>'robots', 'content'=>'noindex,nofollow');
      }
      $head['link'][] = array( 'rel'=>'canonical', 'href'=>wl($ID,'',true,'&') );
    }else{
      $head['meta'][] = array( 'name'=>'robots', 'content'=>'noindex,follow');
    }
  }elseif(defined('DOKU_MEDIADETAIL')){
    $head['meta'][] = array( 'name'=>'robots', 'content'=>'index,follow');
  }else{
    $head['meta'][] = array( 'name'=>'robots', 'content'=>'noindex,nofollow');
  }

  // set metadata
  if($ACT == 'show' || $ACT=='export_xhtml'){
    // date of modification
    if($REV){
      $head['meta'][] = array( 'name'=>'date', 'content'=>date('Y-m-d\TH:i:sO',$REV));
    }else{
      $head['meta'][] = array( 'name'=>'date', 'content'=>date('Y-m-d\TH:i:sO',$INFO['lastmod']));
    }

    // keywords (explicit or implicit)
    if(!empty($INFO['meta']['subject'])){
      $head['meta'][] = array( 'name'=>'keywords', 'content'=>join(',',$INFO['meta']['subject']));
    }else{
      $head['meta'][] = array( 'name'=>'keywords', 'content'=>str_replace(':',',',$ID));
    }
  }

  // load stylesheets
  $head['link'][] = array('rel'=>'stylesheet', 'media'=>'all', 'type'=>'text/css',
                          'href'=>DOKU_BASE.'lib/exe/css.php?s=all&t='.$conf['template'].'&tseed='.$tseed);
  $head['link'][] = array('rel'=>'stylesheet', 'media'=>'screen', 'type'=>'text/css',
                          'href'=>DOKU_BASE.'lib/exe/css.php?t='.$conf['template'].'&tseed='.$tseed);
  $head['link'][] = array('rel'=>'stylesheet', 'media'=>'print', 'type'=>'text/css',
                          'href'=>DOKU_BASE.'lib/exe/css.php?s=print&t='.$conf['template'].'&tseed='.$tseed);

  // make $INFO and other vars available to JavaScripts
  require_once(DOKU_INC.'inc/JSON.php');
  $json = new JSON();
  $script = "var NS='".$INFO['namespace']."';";
  if($conf['useacl'] && $_SERVER['REMOTE_USER']){
      require_once(DOKU_INC.'inc/toolbar.php');
      $script .= "var SIG='".toolbar_signature()."';";
  }
  $script .= 'var JSINFO = '.$json->encode($JSINFO).';';
  $head['script'][] = array( 'type'=>'text/javascript', 'charset'=>'utf-8',
                               '_data'=> $script);

  // load external javascript
  $head['script'][] = array( 'type'=>'text/javascript', 'charset'=>'utf-8', '_data'=>'',
                             'src'=>DOKU_BASE.'lib/exe/js.php'.'?tseed='.$tseed);


  // trigger event here
  trigger_event('TPL_METAHEADER_OUTPUT',$head,'_tpl_metaheaders_action',true);
  return true;
}

/**
 * prints the array build by tpl_metaheaders
 *
 * $data is an array of different header tags. Each tag can have multiple
 * instances. Attributes are given as key value pairs. Values will be HTML
 * encoded automatically so they should be provided as is in the $data array.
 *
 * For tags having a body attribute specify the the body data in the special
 * attribute '_data'. This field will NOT BE ESCAPED automatically.
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function _tpl_metaheaders_action($data){
  foreach($data as $tag => $inst){
    foreach($inst as $attr){
      echo '<',$tag,' ',buildAttributes($attr);
      if(isset($attr['_data']) || $tag == 'script'){
          if($tag == 'script' && $attr['_data'])
            $attr['_data'] = "<!--//--><![CDATA[//><!--\n".
                             $attr['_data'].
                             "\n//--><!]]>";

          echo '>',$attr['_data'],'</',$tag,'>';
      }else{
        echo '/>';
      }
      echo "\n";
    }
  }
}

/**
 * Print a link
 *
 * Just builds a link.
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_link($url,$name,$more='',$return=false){
  $out = '<a href="'.$url.'" ';
  if ($more) $out .= ' '.$more;
  $out .= ">$name</a>";
  if ($return) return $out;
  print $out;
  return true;
}

/**
 * Prints a link to a WikiPage
 *
 * Wrapper around html_wikilink
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_pagelink($id,$name=NULL){
  print html_wikilink($id,$name);
  return true;
}

/**
 * get the parent page
 *
 * Tries to find out which page is parent.
 * returns false if none is available
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_getparent($id){
  global $conf;
  $parent = getNS($id).':';
  resolve_pageid('',$parent,$exists);
  if($parent == $id) {
    $pos = strrpos (getNS($id),':');
    $parent = substr($parent,0,$pos).':';
    resolve_pageid('',$parent,$exists);
    if($parent == $id) return false;
  }
  return $parent;
}

/**
 * Print one of the buttons
 *
 * Available Buttons are
 *
 *  edit        - edit/create/show/draft button
 *  history     - old revisions
 *  recent      - recent changes
 *  login       - login/logout button - if ACL enabled
 *  profile     - user profile button (if logged in)
 *  index       - The index
 *  admin       - admin page - if enough rights
 *  top         - a back to top button
 *  back        - a back to parent button - if available
 *  backlink    - links to the list of backlinks
 *  subscription- subscribe/unsubscribe button
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 * @author Matthias Grimm <matthiasgrimm@users.sourceforge.net>
 */
function tpl_button($type,$return=false){
  global $ACT;
  global $ID;
  global $REV;
  global $NS;
  global $INFO;
  global $conf;
  global $auth;

  // check disabled actions and fix the badly named ones
  $ctype = $type;
  if($type == 'history') $ctype='revisions';
  if(!actionOK($ctype)) return false;

  $out = '';
  switch($type){
    case 'edit':
      #most complicated type - we need to decide on current action
      if($ACT == 'show' || $ACT == 'search'){
        if($INFO['writable']){
          if(!empty($INFO['draft'])){
            $out .= html_btn('draft',$ID,'e',array('do' => 'draft'),'post');
          }else{
            if($INFO['exists']){
              $out .= html_btn('edit',$ID,'e',array('do' => 'edit','rev' => $REV),'post');
            }else{
              $out .= html_btn('create',$ID,'e',array('do' => 'edit','rev' => $REV),'post');
            }
          }
        }else{
          if(!actionOK('source')) return false; //pseudo action
          $out .= html_btn('source',$ID,'v',array('do' => 'edit','rev' => $REV),'post');
        }
      }else{
          $out .= html_btn('show',$ID,'v',array('do' => 'show'));
      }
      break;
    case 'history':
      if(actionOK('revisions'))
        $out .= html_btn('revs',$ID,'o',array('do' => 'revisions'));
      break;
    case 'recent':
      if(actionOK('recent'))
        $out .= html_btn('recent',$ID,'r',array('do' => 'recent'));
      break;
    case 'index':
      if(actionOK('index'))
        $out .= html_btn('index',$ID,'x',array('do' => 'index'));
      break;
    case 'back':
      if ($parent = tpl_getparent($ID)) {
        $out .= html_btn('back',$parent,'b',array('do' => 'show'));
      }
      break;
    case 'top':
      $out .= html_topbtn();
      break;
    case 'login':
      if($conf['useacl'] && $auth){
        if(isset($_SERVER['REMOTE_USER'])){
          $out .= html_btn('logout',$ID,'',array('do' => 'logout', 'sectok' => getSecurityToken()));
        }else{
          $out .= html_btn('login',$ID,'',array('do' => 'login', 'sectok' => getSecurityToken()));
        }
      }
      break;
    case 'admin':
      if($INFO['ismanager']){
        $out .= html_btn('admin',$ID,'',array('do' => 'admin'));
      }
      break;
    case 'revert':
      if($INFO['ismanager'] && $REV && $INFO['writable'] && actionOK('revert')){
        $out .= html_btn('revert',$ID,'',array('do' => 'revert', 'rev' => $REV, 'sectok' => getSecurityToken()));
      }
      break;
    case 'subscribe':
    case 'subscription':
      if($conf['useacl'] && $auth && $ACT == 'show' && $conf['subscribers'] == 1){
        if($_SERVER['REMOTE_USER']){
          if($INFO['subscribed']){
            if(actionOK('unsubscribe'))
              $out .= html_btn('unsubscribe',$ID,'',array('do' => 'unsubscribe',));
          } else {
            if(actionOK('subscribe'))
              $out .= html_btn('subscribe',$ID,'',array('do' => 'subscribe',));
          }
        }
      }
      if($type == 'subscribe') break;
      // else: fall through for backward compatibility
    case 'subscribens':
      if($conf['useacl'] && $auth && $ACT == 'show' && $conf['subscribers'] == 1){
        if($_SERVER['REMOTE_USER']){
          if($INFO['subscribedns']){
            if(actionOK('unsubscribens'))
              $out .= html_btn('unsubscribens',$ID,'',array('do' => 'unsubscribens',));
          } else {
            if(actionOK('subscribens'))
              $out .= html_btn('subscribens',$ID,'',array('do' => 'subscribens',));
          }
        }
      }
      break;
    case 'backlink':
      if(actionOK('backlink'))
        $out .= html_btn('backlink',$ID,'',array('do' => 'backlink'));
      break;
    case 'profile':
      if($conf['useacl'] && isset($_SERVER['REMOTE_USER']) && $auth &&
          $auth->canDo('Profile') && ($ACT!='profile')){
        $out .= html_btn('profile',$ID,'',array('do' => 'profile'));
      }
      break;
    default:
      $out .= '[unknown button type]';
      break;
  }
  if ($return) return $out;
  print $out;
  return $out ? true : false;
}

/**
 * Like the action buttons but links
 *
 * Available links are
 *
 *  edit    - edit/create/show link
 *  history - old revisions
 *  recent  - recent changes
 *  login   - login/logout link - if ACL enabled
 *  profile - user profile link (if logged in)
 *  index   - The index
 *  admin   - admin page - if enough rights
 *  top     - a back to top link
 *  back    - a back to parent link - if available
 *  backlink - links to the list of backlinks
 *  subscribe/subscription - subscribe/unsubscribe link
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 * @author Matthias Grimm <matthiasgrimm@users.sourceforge.net>
 * @see    tpl_button
 */
function tpl_actionlink($type,$pre='',$suf='',$inner='',$return=false){
  global $ID;
  global $INFO;
  global $REV;
  global $ACT;
  global $conf;
  global $lang;
  global $auth;

  // check disabled actions and fix the badly named ones
  $ctype = $type;
  if($type == 'history') $ctype='revisions';
  if(!actionOK($ctype)) return false;

  $out = '';
  switch($type){
    case 'edit':
      #most complicated type - we need to decide on current action
      if($ACT == 'show' || $ACT == 'search'){
        if($INFO['writable']){
          if(!empty($INFO['draft'])) {
            $out .= tpl_link(wl($ID,'do=draft'),
                       $pre.(($inner)?$inner:$lang['btn_draft']).$suf,
                       'class="action edit" accesskey="e" rel="nofollow"',1);
          } else {
            if($INFO['exists']){
              $out .= tpl_link(wl($ID,'do=edit&amp;rev='.$REV),
                       $pre.(($inner)?$inner:$lang['btn_edit']).$suf,
                       'class="action edit" accesskey="e" rel="nofollow"',1);
            }else{
              $out .= tpl_link(wl($ID,'do=edit&amp;rev='.$REV),
                       $pre.(($inner)?$inner:$lang['btn_create']).$suf,
                       'class="action create" accesskey="e" rel="nofollow"',1);
            }
          }
        }else{
          if(actionOK('source')) //pseudo action
            $out .= tpl_link(wl($ID,'do=edit&amp;rev='.$REV),
                   $pre.(($inner)?$inner:$lang['btn_source']).$suf,
                   'class="action source" accesskey="v" rel="nofollow"',1);
        }
      }else{
          $out .= tpl_link(wl($ID,'do=show'),
                   $pre.(($inner)?$inner:$lang['btn_show']).$suf,
                   'class="action show" accesskey="v" rel="nofollow"',1);
      }
      break;
    case 'history':
      if(actionOK('revisions'))
        $out .= tpl_link(wl($ID,'do=revisions'),
               $pre.(($inner)?$inner:$lang['btn_revs']).$suf,
               'class="action revisions" accesskey="o" rel="nofollow"',1);
      break;
    case 'recent':
      if(actionOK('recent'))
        $out .= tpl_link(wl($ID,'do=recent'),
               $pre.(($inner)?$inner:$lang['btn_recent']).$suf,
              'class="action recent" accesskey="r" rel="nofollow"',1);
      break;
    case 'index':
      if(actionOK('index'))
        $out .= tpl_link(wl($ID,'do=index'),
               $pre.(($inner)?$inner:$lang['btn_index']).$suf,
              'class="action index" accesskey="x" rel="nofollow"',1);
      break;
    case 'top':
      $out .= '<a href="#dokuwiki__top" class="action top" accesskey="x">'.
            $pre.(($inner)?$inner:$lang['btn_top']).$suf.'</a>';
      break;
    case 'back':
      if ($parent = tpl_getparent($ID)) {
        $out .= tpl_link(wl($parent,'do=show'),
        $pre.(($inner)?$inner:$lang['btn_back']).$suf,
        'class="action back" accesskey="b" rel="nofollow"',1);
      }
      break;
    case 'login':
      if($conf['useacl'] && $auth){
        if($_SERVER['REMOTE_USER']){
          $out .= tpl_link(wl($ID,'do=logout&amp;sectok='.getSecurityToken()),
                   $pre.(($inner)?$inner:$lang['btn_logout']).$suf,
                   'class="action logout" rel="nofollow"',1);
        }else{
          $out .= tpl_link(wl($ID,'do=login&amp;sectok='.getSecurityToken()),
                   $pre.(($inner)?$inner:$lang['btn_login']).$suf,
                   'class="action login" rel="nofollow"',1);
        }
      }
      break;
    case 'admin':
      if($INFO['ismanager']){
        $out .= tpl_link(wl($ID,'do=admin'),
                 $pre.(($inner)?$inner:$lang['btn_admin']).$suf,
                 'class="action admin" rel="nofollow"',1);
      }
      break;
    case 'revert':
      if($INFO['ismanager'] && $REV && $INFO['writable'] && actionOK('revert')){
        $out .= tpl_link(wl($ID,array('do' => 'revert', 'rev' => $REV, 'sectok' => getSecurityToken())),
                 $pre.(($inner)?$inner:$lang['btn_revert']).$suf,
                 'class="action revert" rel="nofollow"',1);
      }
      break;
   case 'subscribe':
   case 'subscription':
      if($conf['useacl'] && $auth && $ACT == 'show' && $conf['subscribers'] == 1){
        if($_SERVER['REMOTE_USER']){
          if($INFO['subscribed']) {
            if(actionOK('unsubscribe'))
              $out .= tpl_link(wl($ID,'do=unsubscribe'),
                     $pre.(($inner)?$inner:$lang['btn_unsubscribe']).$suf,
                     'class="action unsubscribe" rel="nofollow"',1);
          } else {
            if(actionOK('subscribe'))
              $out .= tpl_link(wl($ID,'do=subscribe'),
                     $pre.(($inner)?$inner:$lang['btn_subscribe']).$suf,
                     'class="action subscribe" rel="nofollow"',1);
          }
        }
      }
      if($type == 'subscribe') break;
      // else: fall through for backward compatibility
    case 'subscribens':
      if($conf['useacl'] && $auth && $ACT == 'show' && $conf['subscribers'] == 1){
        if($_SERVER['REMOTE_USER']){
          if($INFO['subscribedns']) {
            if(actionOK('unsubscribens'))
              $out .= tpl_link(wl($ID,'do=unsubscribens'),
                     $pre.(($inner)?$inner:$lang['btn_unsubscribens']).$suf,
                     'class="action unsubscribens" rel="nofollow"',1);
          } else {
            if(actionOK('subscribens'))
              $out .= tpl_link(wl($ID,'do=subscribens'),
                     $pre.(($inner)?$inner:$lang['btn_subscribens']).$suf,
                     'class="action subscribens" rel="nofollow"',1);
          }
        }
      }
      break;
    case 'backlink':
      if(actionOK('backlink'))
        $out .= tpl_link(wl($ID,'do=backlink'),
               $pre.(($inner)?$inner:$lang['btn_backlink']).$suf,
               'class="action backlink" rel="nofollow"',1);
      break;
    case 'profile':
      if($conf['useacl'] && $auth && $_SERVER['REMOTE_USER'] &&
         $auth->canDo('Profile') && ($ACT!='profile')){
        $out .= tpl_link(wl($ID,'do=profile'),
                 $pre.(($inner)?$inner:$lang['btn_profile']).$suf,
                 'class="action profile" rel="nofollow"',1);
      }
      break;
    default:
      $out .= '[unknown link type]';
      break;
  }
  if ($return) return $out;
  print $out;
  return $out ? true : false;
}

/**
 * Wrapper around tpl_button() and tpl_actionlink()
 *
 * @author Anika Henke <anika@selfthinker.org>
 */
function tpl_action($type,$link=0,$wrapper=false,$return=false,$pre='',$suf='',$inner='') {
    $out = '';
    if ($link) $out .= tpl_actionlink($type,$pre,$suf,$inner,1);
    else $out .= tpl_button($type,1);
    if ($out && $wrapper) $out = "<$wrapper>$out</$wrapper>";

    if ($return) return $out;
    print $out;
    return $out ? true : false;
}

/**
 * Print the search form
 *
 * If the first parameter is given a div with the ID 'qsearch_out' will
 * be added which instructs the ajax pagequicksearch to kick in and place
 * its output into this div. The second parameter controls the propritary
 * attribute autocomplete. If set to false this attribute will be set with an
 * value of "off" to instruct the browser to disable it's own built in
 * autocompletion feature (MSIE and Firefox)
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_searchform($ajax=true,$autocomplete=true){
  global $lang;
  global $ACT;
  global $QUERY;

  // don't print the search form if search action has been disabled
  if (!actionOk('search')) return false;

  print '<form action="'.wl().'" accept-charset="utf-8" class="search" id="dw__search"><div class="no">';
  print '<input type="hidden" name="do" value="search" />';
  print '<input type="text" ';
  if($ACT == 'search') print 'value="'.htmlspecialchars($QUERY).'" ';
  if(!$autocomplete) print 'autocomplete="off" ';
  print 'id="qsearch__in" accesskey="f" name="id" class="edit" title="[F]" />';
  print '<input type="submit" value="'.$lang['btn_search'].'" class="button" title="'.$lang['btn_search'].'" />';
  if($ajax) print '<div id="qsearch__out" class="ajax_qsearch JSpopup"></div>';
  print '</div></form>';
  return true;
}

/**
 * Print the breadcrumbs trace
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_breadcrumbs($sep='&raquo;'){
  global $lang;
  global $conf;

  //check if enabled
  if(!$conf['breadcrumbs']) return false;

  $crumbs = breadcrumbs(); //setup crumb trace

  //reverse crumborder in right-to-left mode, add RLM character to fix heb/eng display mixups
  if($lang['direction'] == 'rtl') {
    $crumbs = array_reverse($crumbs,true);
    $crumbs_sep = ' &#8207;<span class="bcsep">'.$sep.'</span>&#8207; ';
  } else {
    $crumbs_sep = ' <span class="bcsep">'.$sep.'</span> ';
  }

  //render crumbs, highlight the last one
  print '<span class="bchead">'.$lang['breadcrumb'].':</span>';
  $last = count($crumbs);
  $i = 0;
  foreach ($crumbs as $id => $name){
    $i++;
    echo $crumbs_sep;
    if ($i == $last) print '<span class="curid">';
    tpl_link(wl($id),hsc($name),'class="breadcrumbs" title="'.$id.'"');
    if ($i == $last) print '</span>';
  }
  return true;
}

/**
 * Hierarchical breadcrumbs
 *
 * This code was suggested as replacement for the usual breadcrumbs.
 * It only makes sense with a deep site structure.
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 * @author Nigel McNie <oracle.shinoda@gmail.com>
 * @author Sean Coates <sean@caedmon.net>
 * @author <fredrik@averpil.com>
 * @todo   May behave strangely in RTL languages
 */
function tpl_youarehere($sep=' &raquo; '){
  global $conf;
  global $ID;
  global $lang;

  // check if enabled
  if(!$conf['youarehere']) return false;

  $parts = explode(':', $ID);
  $count = count($parts);

  if($GLOBALS['ACT'] == 'search')
  {
    $parts = array($conf['start']);
    $count = 1;
  }

  echo '<span class="bchead">'.$lang['youarehere'].': </span>';

  // always print the startpage
  $title = useHeading('navigation') ? p_get_first_heading($conf['start']) : $conf['start'];
  if(!$title) $title = $conf['start'];
  tpl_link(wl($conf['start']),hsc($title),'title="'.$conf['start'].'"');

  // print intermediate namespace links
  $part = '';
  for($i=0; $i<$count - 1; $i++){
    $part .= $parts[$i].':';
    $page = $part;
    resolve_pageid('',$page,$exists);
    if ($page == $conf['start']) continue; // Skip startpage

    // output
    echo $sep;
    if($exists){
      $title = useHeading('navigation') ? p_get_first_heading($page) : $parts[$i];
      tpl_link(wl($page),hsc($title),'title="'.$page.'"');
    }else{
      tpl_link(wl($page),$parts[$i],'title="'.$page.'" class="wikilink2" rel="nofollow"');
    }
  }

  // print current page, skipping start page, skipping for namespace index
  if(isset($page) && $page==$part.$parts[$i]) return;
  $page = $part.$parts[$i];
  if($page == $conf['start']) return;
  echo $sep;
  if(page_exists($page)){
    $title = useHeading('navigation') ? p_get_first_heading($page) : $parts[$i];
    tpl_link(wl($page),hsc($title),'title="'.$page.'"');
  }else{
    tpl_link(wl($page),$parts[$i],'title="'.$page.'" class="wikilink2" rel="nofollow"');
  }
  return true;
}

/**
 * Print info if the user is logged in
 * and show full name in that case
 *
 * Could be enhanced with a profile link in future?
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_userinfo(){
  global $lang;
  global $INFO;
  if(isset($_SERVER['REMOTE_USER'])){
    print $lang['loggedinas'].': '.$INFO['userinfo']['name'].' ('.$_SERVER['REMOTE_USER'].')';
    return true;
  }
  return false;
}

/**
 * Print some info about the current page
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_pageinfo($ret=false){
  global $conf;
  global $lang;
  global $INFO;
  global $ID;

  // return if we are not allowed to view the page
  if (!auth_quickaclcheck($ID)) { return false; }

  // prepare date and path
  $fn = $INFO['filepath'];
  if(!$conf['fullpath']){
    if($INFO['rev']){
      $fn = str_replace(fullpath($conf['olddir']).'/','',$fn);
    }else{
      $fn = str_replace(fullpath($conf['datadir']).'/','',$fn);
    }
  }
  $fn = utf8_decodeFN($fn);
  $date = dformat($INFO['lastmod']);

  // print it
  if($INFO['exists']){
    $out = '';
    $out .= $fn;
    $out .= ' &middot; ';
    $out .= $lang['lastmod'];
    $out .= ': ';
    $out .= $date;
    if($INFO['editor']){
      $out .= ' '.$lang['by'].' ';
      $out .= editorinfo($INFO['editor']);
    }else{
      $out .= ' ('.$lang['external_edit'].')';
    }
    if($INFO['locked']){
      $out .= ' &middot; ';
      $out .= $lang['lockedby'];
      $out .= ': ';
      $out .= editorinfo($INFO['locked']);
    }
    if($ret){
        return $out;
    }else{
        echo $out;
        return true;
    }
  }
  return false;
}

/**
 * Prints or returns the name of the given page (current one if none given).
 *
 * If useheading is enabled this will use the first headline else
 * the given ID is used.
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_pagetitle($id=null, $ret=false){
  global $conf;
  if(is_null($id)){
    global $ID;
    $id = $ID;
  }

  $name = $id;
  if (useHeading('navigation')) {
    $title = p_get_first_heading($id);
    if ($title) $name = $title;
  }

  if ($ret) {
      return hsc($name);
  } else {
      print hsc($name);
      return true;
  }
}

/**
 * Returns the requested EXIF/IPTC tag from the current image
 *
 * If $tags is an array all given tags are tried until a
 * value is found. If no value is found $alt is returned.
 *
 * Which texts are known is defined in the functions _exifTagNames
 * and _iptcTagNames() in inc/jpeg.php (You need to prepend IPTC
 * to the names of the latter one)
 *
 * Only allowed in: detail.php
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_img_getTag($tags,$alt='',$src=null){
  // Init Exif Reader
  global $SRC;

  if(is_null($src)) $src = $SRC;

  static $meta = null;
  if(is_null($meta)) $meta = new JpegMeta($src);
  if($meta === false) return $alt;
  $info = $meta->getField($tags);
  if($info == false) return $alt;
  return $info;
}

/**
 * Prints the image with a link to the full sized version
 *
 * Only allowed in: detail.php
 */
function tpl_img($maxwidth=0,$maxheight=0){
  global $IMG;
  $w = tpl_img_getTag('File.Width');
  $h = tpl_img_getTag('File.Height');

  //resize to given max values
  $ratio = 1;
  if($w >= $h){
    if($maxwidth && $w >= $maxwidth){
      $ratio = $maxwidth/$w;
    }elseif($maxheight && $h > $maxheight){
      $ratio = $maxheight/$h;
    }
  }else{
    if($maxheight && $h >= $maxheight){
      $ratio = $maxheight/$h;
    }elseif($maxwidth && $w > $maxwidth){
      $ratio = $maxwidth/$w;
    }
  }
  if($ratio){
    $w = floor($ratio*$w);
    $h = floor($ratio*$h);
  }

  //prepare URLs
  $url=ml($IMG,array('cache'=>$_REQUEST['cache']));
  $src=ml($IMG,array('cache'=>$_REQUEST['cache'],'w'=>$w,'h'=>$h));

  //prepare attributes
  $alt=tpl_img_getTag('Simple.Title');
  $p = array();
  if($w) $p['width']  = $w;
  if($h) $p['height'] = $h;
         $p['class']  = 'img_detail';
  if($alt){
    $p['alt']   = $alt;
    $p['title'] = $alt;
  }else{
    $p['alt'] = '';
  }
  $p = buildAttributes($p);

  print '<a href="'.$url.'">';
  print '<img src="'.$src.'" '.$p.'/>';
  print '</a>';
  return true;
}

/**
 * This function inserts a 1x1 pixel gif which in reality
 * is the indexer function.
 *
 * Should be called somewhere at the very end of the main.php
 * template
 */
function tpl_indexerWebBug(){
  global $ID;
  global $INFO;
  if(!$INFO['exists']) return false;

  if(isHiddenPage($ID)) return false; //no need to index hidden pages

  $p = array();
  $p['src']    = DOKU_BASE.'lib/exe/indexer.php?id='.rawurlencode($ID).
                 '&'.time();
  $p['width']  = 1;
  $p['height'] = 1;
  $p['alt']    = '';
  $att = buildAttributes($p);
  print "<img $att />";
  return true;
}

// configuration methods
/**
 * tpl_getConf($id)
 *
 * use this function to access template configuration variables
 */
function tpl_getConf($id){
  global $conf;
  global $tpl_configloaded;

  $tpl = $conf['template'];

  if (!$tpl_configloaded){
    $tconf = tpl_loadConfig();
    if ($tconf !== false){
      foreach ($tconf as $key => $value){
        if (isset($conf['tpl'][$tpl][$key])) continue;
        $conf['tpl'][$tpl][$key] = $value;
      }
      $tpl_configloaded = true;
    }
  }

  return $conf['tpl'][$tpl][$id];
}

/**
 * tpl_loadConfig()
 * reads all template configuration variables
 * this function is automatically called by tpl_getConf()
 */
function tpl_loadConfig(){

  $file = DOKU_TPLINC.'/conf/default.php';
  $conf = array();

  if (!@file_exists($file)) return false;

  // load default config file
  include($file);

  return $conf;
}

/**
 * prints the "main content" in the mediamanger popup
 *
 * Depending on the user's actions this may be a list of
 * files in a namespace, the meta editing dialog or
 * a message of referencing pages
 *
 * Only allowed in mediamanager.php
 *
 * @triggers MEDIAMANAGER_CONTENT_OUTPUT
 * @param bool $fromajax - set true when calling this function via ajax
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_mediaContent($fromajax=false){
  global $IMG;
  global $AUTH;
  global $INUSE;
  global $NS;
  global $JUMPTO;

  if(is_array($_REQUEST['do'])){
    $do = array_shift(array_keys($_REQUEST['do']));
  }else{
    $do = $_REQUEST['do'];
  }
  if(in_array($do,array('save','cancel'))) $do = '';

  if(!$do){
      if($_REQUEST['edit']){
        $do = 'metaform';
      }elseif(is_array($INUSE)){
        $do = 'filesinuse';
      }else{
        $do = 'filelist';
      }
  }

  // output the content pane, wrapped in an event.
  if(!$fromajax) ptln('<div id="media__content">');
  $data = array( 'do' => $do);
  $evt = new Doku_Event('MEDIAMANAGER_CONTENT_OUTPUT', $data);
  if ($evt->advise_before()) {
    $do = $data['do'];
    if($do == 'metaform'){
      media_metaform($IMG,$AUTH);
    }elseif($do == 'filesinuse'){
      media_filesinuse($INUSE,$IMG);
    }elseif($do == 'filelist'){
      media_filelist($NS,$AUTH,$JUMPTO);
    }elseif($do == 'searchlist'){
      media_searchlist($_REQUEST['q'],$NS,$AUTH);
    }else{
      msg('Unknown action '.hsc($do),-1);
    }
  }
  $evt->advise_after();
  unset($evt);
  if(!$fromajax) ptln('</div>');

}

/**
 * prints the namespace tree in the mediamanger popup
 *
 * Only allowed in mediamanager.php
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_mediaTree(){
  global $NS;

  ptln('<div id="media__tree">');
  media_nstree($NS);
  ptln('</div>');
}


/**
 * Print a dropdown menu with all DokuWiki actions
 *
 * Note: this will not use any pretty URLs
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 */
function tpl_actiondropdown($empty='',$button='&gt;'){
    global $ID;
    global $INFO;
    global $REV;
    global $ACT;
    global $conf;
    global $lang;
    global $auth;


    echo '<form method="post" accept-charset="utf-8">'; #FIXME action
    echo '<input type="hidden" name="id" value="'.$ID.'" />';
    if($REV) echo '<input type="hidden" name="rev" value="'.$REV.'" />';
    echo '<input type="hidden" name="sectok" value="'.getSecurityToken().'" />';

    echo '<select name="do" id="action__selector" class="edit">';
    echo '<option value="">'.$empty.'</option>';

    echo '<optgroup label=" &mdash; ">';
        // 'edit' - most complicated type, we need to decide on current action
        if($ACT == 'show' || $ACT == 'search'){
            if($INFO['writable']){
                if(!empty($INFO['draft'])) {
                    echo '<option value="edit">'.$lang['btn_draft'].'</option>';
                } else {
                    if($INFO['exists']){
                        echo '<option value="edit">'.$lang['btn_edit'].'</option>';
                    }else{
                        echo '<option value="edit">'.$lang['btn_create'].'</option>';
                    }
                }
            }else if(actionOK('source')) { //pseudo action
                echo '<option value="edit">'.$lang['btn_source'].'</option>';
            }
        }else{
            echo '<option value="show">'.$lang['btn_show'].'</option>';
        }

        echo '<option value="revisions">'.$lang['btn_revs'].'</option>';
        if($INFO['ismanager'] && $REV && $INFO['writable'] && actionOK('revert')){
            echo '<option value="revert">'.$lang['btn_revert'].'</option>';
        }
        echo '<option value="backlink">'.$lang['btn_backlink'].'</option>';
    echo '</optgroup>';

    echo '<optgroup label=" &mdash; ">';
        echo '<option value="recent">'.$lang['btn_recent'].'</option>';
        echo '<option value="index">'.$lang['btn_index'].'</option>';
    echo '</optgroup>';

    echo '<optgroup label=" &mdash; ">';
        if($conf['useacl'] && $auth){
            if($_SERVER['REMOTE_USER']){
                echo '<option value="logout">'.$lang['btn_logout'].'</option>';
            }else{
                echo '<option value="login">'.$lang['btn_login'].'</option>';
            }
        }

        if($conf['useacl'] && $auth && $_SERVER['REMOTE_USER'] &&
             $auth->canDo('Profile') && ($ACT!='profile')){
            echo '<option value="profile">'.$lang['btn_profile'].'</option>';
        }

        if($conf['useacl'] && $auth && $ACT == 'show' && $conf['subscribers'] == 1){
            if($_SERVER['REMOTE_USER']){
                if($INFO['subscribed']) {
                    echo '<option value="unsubscribe">'.$lang['btn_unsubscribe'].'</option>';
                } else {
                    echo '<option value="subscribe">'.$lang['btn_subscribe'].'</option>';
                }
            }
        }

        if($conf['useacl'] && $auth && $ACT == 'show' && $conf['subscribers'] == 1){
            if($_SERVER['REMOTE_USER']){
                if($INFO['subscribedns']) {
                    echo '<option value="unsubscribens">'.$lang['btn_unsubscribens'].'</option>';
                } else {
                    echo '<option value="subscribens">'.$lang['btn_subscribens'].'</option>';
                }
            }
        }

        if($INFO['ismanager']){
            echo '<option value="admin">'.$lang['btn_admin'].'</option>';
        }
    echo '</optgroup>';

    echo '</select>';
    echo '<input type="submit" value="'.$button.'" id="action__selectorbtn" />';
    echo '</form>';
}

/**
 * Print a informational line about the used license
 *
 * @author Andreas Gohr <andi@splitbrain.org>
 * @param  string $img    - print image? (|button|badge)
 * @param  bool   $return - when true don't print, but return HTML
 */
function tpl_license($img='badge',$imgonly=false,$return=false){
    global $license;
    global $conf;
    global $lang;
    if(!$conf['license']) return '';
    if(!is_array($license[$conf['license']])) return '';
    $lic = $license[$conf['license']];

    $out  = '<div class="license">';
    if($img){
        $src = license_img($img);
        if($src){
            $out .= '<a href="'.$lic['url'].'" rel="license"';
            if($conf['target']['external']) $out .= ' target="'.$conf['target']['external'].'"';
            $out .= '><img src="'.DOKU_BASE.$src.'" class="medialeft lic'.$img.'" alt="'.$lic['name'].'" /></a> ';
        }
    }
    if(!$imgonly) {
        $out .= $lang['license'];
        $out .= '<a href="'.$lic['url'].'" rel="license" class="urlextern"';
        if(isset($conf['target']['external'])) $out .= ' target="'.$conf['target']['external'].'"';
        $out .= '>'.$lic['name'].'</a>';
    }
    $out .= '</div>';

    if($return) return $out;
    echo $out;
}


/**
 * Includes the rendered XHTML of a given page
 *
 * This function is useful to populate sidebars or similar features in a
 * template
 */
function tpl_include_page($pageid,$print=true){
    global $ID;
    $oldid = $ID;
    $html = p_wiki_xhtml($pageid,'',false);
    $ID = $oldid;

    if(!$print) return $html;
    echo $html;
}

//Setup VIM: ex: et ts=4 enc=utf-8 :