lib/display.php

   1 <?php
   2 // display.php: fetch page or get default content
   3 rcs_id('$Id: display.php,v 1.48 2003-11-04 18:20:20 carstenklapp Exp $');
   4
   5 require_once('lib/Template.php');
   6
   7 /**
   8  * Extract keywords from Category* links on page.
   9  */
  10 function GleanKeywords ($page) {
  11     global $KeywordLinkRegexp;
  12
  13     $links = $page->getLinks(false);
  14
  15     $keywords[] = split_pagename($page->getName());
  16
  17     while ($link = $links->next())
  18         if (preg_match("/${KeywordLinkRegexp}/x", $link->getName(), $m))
  19             $keywords[] = split_pagename($m[0]);
  20
  21     $keywords[] = WIKI_NAME;
  22
  23     return join(', ', $keywords);
  24 }
  25
  26 /** Make a link back to redirecting page.
  27  *
  28  * @param $pagename string  Name of redirecting page.
  29  * @return XmlContent Link to the redirecting page.
  30  */
  31 function RedirectorLink($pagename) {
  32     $url = WikiURL($pagename, array('redirectfrom' => ''));
  33     return HTML::a(array('class' => 'redirectfrom wiki',
  34                          'href' => $url),
  35                    $pagename);
  36 }
  37
  38
  39 function actionPage(&$request, $action) {
  40     global $Theme;
  41
  42     $pagename = $request->getArg('pagename');
  43     $version = $request->getArg('version');
  44
  45     $page = $request->getPage();
  46     $revision = $page->getCurrentRevision();
  47
  48     $dbi = $request->getDbh();
  49     $actionpage = $dbi->getPage($action);
  50     $actionrev = $actionpage->getCurrentRevision();
  51
  52     // $splitname = split_pagename($pagename);
  53
  54     $pagetitle = HTML(fmt("%s: %s", $actionpage->getName(),
  55                           $Theme->linkExistingWikiWord($pagename, false, $version)));
  56
  57     $validators = new HTTP_ValidatorSet(array('pageversion' => $revision->getVersion(),
  58                                               '%mtime' => $revision->get('mtime')));
  59
  60     $request->appendValidators(array('pagerev' => $revision->getVersion(),
  61                                      '%mtime' => $revision->get('mtime')));
  62     $request->appendValidators(array('actionpagerev' => $actionrev->getVersion(),
  63                                      '%mtime' => $actionrev->get('mtime')));
  64
  65     $transformedContent = $actionrev->getTransformedContent();
  66     $template = Template('browse', array('CONTENT' => $transformedContent));
  67
  68     header("Content-Type: text/html; charset=" . CHARSET);
  69     GeneratePage($template, $pagetitle, $revision);
  70     $request->checkValidators();
  71     flush();
  72 }
  73
  74 function displayPage(&$request, $template=false) {
  75     $pagename = $request->getArg('pagename');
  76     $version = $request->getArg('version');
  77     $page = $request->getPage();
  78     if ($version) {
  79         $revision = $page->getRevision($version);
  80         if (!$revision)
  81             NoSuchRevision($request, $page, $version);
  82     }
  83     else {
  84         $revision = $page->getCurrentRevision();
  85     }
  86
  87     $splitname = split_pagename($pagename);
  88     if (isSubPage($pagename)) {
  89         $pages = explode(SUBPAGE_SEPARATOR,$pagename);
  90         $last_page = array_pop($pages); // deletes last element from array as side-effect
  91         $pagetitle = HTML::span(HTML::a(array('href' => WikiURL($pages[0]),
  92                                               'class' => 'pagetitle'
  93                                               ),
  94                                         split_pagename($pages[0] . SUBPAGE_SEPARATOR)));
  95         $first_pages = $pages[0] . SUBPAGE_SEPARATOR;
  96         array_shift($pages);
  97         foreach ($pages as $p)  {
  98             $pagetitle->pushContent(HTML::a(array('href' => WikiURL($first_pages . $p),
  99                                                   'class' => 'backlinks'),
 100                                        split_pagename($p . SUBPAGE_SEPARATOR)));
 101             $first_pages .= $p . SUBPAGE_SEPARATOR;
 102         }
 103         $backlink = HTML::a(array('href' => WikiURL($pagename,
 104                                                     array('action' => _("BackLinks"))),
 105                                   'class' => 'backlinks'),
 106                             split_pagename($last_page));
 107         $backlink->addTooltip(sprintf(_("BackLinks for %s"), $pagename));
 108         $pagetitle->pushContent($backlink);
 109     } else {
 110         $pagetitle = HTML::a(array('href' => WikiURL($pagename,
 111                                                      array('action' => _("BackLinks"))),
 112                                    'class' => 'backlinks'),
 113                              $splitname);
 114         $pagetitle->addTooltip(sprintf(_("BackLinks for %s"), $pagename));
 115         if ($request->getArg('frame'))
 116             $pagetitle->setAttr('target', '_top');
 117     }
 118
 119     $pageheader = $pagetitle;
 120     if (($redirect_from = $request->getArg('redirectfrom'))) {
 121         $redirect_message = HTML::span(array('class' => 'redirectfrom'),
 122                                        fmt("(Redirected from %s)",
 123                                            RedirectorLink($redirect_from)));
 124     }
 125
 126     $request->appendValidators(array('pagerev' => $revision->getVersion(),
 127                                      '%mtime' => $revision->get('mtime')));
 128
 129     // FIXME: should probably be in a template...
 130     header("Content-Type: text/html; charset=" . CHARSET); // FIXME: this gets done twice?
 131
 132     $page_content = $revision->getTransformedContent();
 133
 134     $toks['CONTENT'] = new Template('browse', $request, $page_content);
 135
 136     $toks['TITLE'] = $pagetitle;
 137     $toks['HEADER'] = $pageheader;
 138     $toks['revision'] = $revision;
 139     if (!empty($redirect_message))
 140         $toks['redirected'] = $redirect_message;
 141     $toks['ROBOTS_META'] = 'index,follow';
 142     $toks['PAGE_DESCRIPTION'] = $page_content->getDescription();
 143     $toks['PAGE_KEYWORDS'] = GleanKeywords($page);
 144
 145     if (!$template)
 146         $template = new Template('html', $request);
 147
 148     $template->printExpansion($toks);
 149     $page->increaseHitCount();
 150
 151     $request->checkValidators();
 152     flush();
 153 }
 154
 155 // For emacs users
 156 // Local Variables:
 157 // mode: php
 158 // tab-width: 8
 159 // c-basic-offset: 4
 160 // c-hanging-comment-ender-p: nil
 161 // indent-tabs-mode: nil
 162 // End:
 163 ?>