includes/wikiengine/Render/Xhtml/Wikilink.php
author Dan
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<?php
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// vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4:
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/**
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 * Wikilink rule end renderer for Xhtml
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 *
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 * PHP versions 4 and 5
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 *
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 * @category   Text
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 * @package    Text_Wiki
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 * @author     Paul M. Jones <pmjones@php.net>
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 * @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1
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 * @version    CVS: $Id: Wikilink.php,v 1.17 2006/02/28 03:15:09 justinpatrin Exp $
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 * @link       http://pear.php.net/package/Text_Wiki
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 */
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/**
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 * This class renders wiki links in XHTML.
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 *
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 * @category   Text
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 * @package    Text_Wiki
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 * @author     Paul M. Jones <pmjones@php.net>
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 * @license    http://www.gnu.org/copyleft/lesser.html  LGPL License 2.1
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 * @version    Release: @package_version@
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 * @link       http://pear.php.net/package/Text_Wiki
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 */
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class Text_Wiki_Render_Xhtml_Wikilink extends Text_Wiki_Render {
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  var $conf;
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  function Text_Wiki_Render_Xhtml_Wikilink() {
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    $_utemp = contentPath.'%s';
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    $this->conf = array(
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        'pages' => array(), // set to null or false to turn off page checks
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        'view_url' => $_utemp,
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        'new_url'  => $_utemp,
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        'new_text' => ' [x]',
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        'new_text_pos' => false, // 'before', 'after', or null/false
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        'css' => null,
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        'css_new' => null,
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        'exists_callback' => 'isPage' // call_user_func() callback
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    );
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  }
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    /**
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    *
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    * Renders a token into XHTML.
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    *
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    * @access public
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    *
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    * @param array $options The "options" portion of the token (second
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    * element).
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    *
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    * @return string The text rendered from the token options.
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    *
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    */
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    function token($options)
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    {
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        global $session;
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        if ( $session->sid_super )
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        {
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          $as = htmlspecialchars(urlSeparator) . 'auth='.$session->sid_super;
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        }
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        else
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        {
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          $as = '';
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        }
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        // make nice variable names (page, anchor, text)
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        extract($options);
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        // is there a "page existence" callback?
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        // we need to access it directly instead of through
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        // getConf() because we'll need a reference (for
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        // object instance method callbacks).
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        if (isset($this->conf['exists_callback'])) {
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            $callback =& $this->conf['exists_callback'];
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        } else {
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        	$callback = false;
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        }
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        $page = sanitize_page_id( $page );
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        if ($callback) {
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            // use the callback function
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            $exists = call_user_func($callback, $page);
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        } else {
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            // no callback, go to the naive page array.
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            $list = $this->getConf('pages');
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            if (is_array($list)) {
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                // yes, check against the page list
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                $exists = in_array($page, $list);
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            } else {
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                // no, assume it exists
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                $exists = true;
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            }
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        }
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        // convert *after* checking against page names so as not to mess
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        // up what the user typed and what we're checking.
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        //$page = $this->urlEncode($page);
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        $anchor = $this->urlEncode($anchor);
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        // $text = $this->textEncode($text);
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        // hackish fix for the "external" image in Oxygen [added for Enano]
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        if ( preg_match('/<(.+?)>/is', $text) )
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        {
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          $nobg = ' style="background-image: none; padding-right: 0;"';
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        }
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        else
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        {
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          $nobg = '';
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        }
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        // does the page exist?
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        if ($exists) {
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            // PAGE EXISTS.
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            // link to the page view, but we have to build
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            // the HREF.  we support both the old form where
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            // the page always comes at the end, and the new
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            // form that uses %s for sprintf()
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            $href = $this->getConf('view_url');
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            if (strpos($href, '%s') === false) {
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                // use the old form (page-at-end)
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                $href = $href . $page . $anchor;
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            } else {
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                // use the new form (sprintf format string)
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                $href = sprintf($href, $page . $anchor);
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            }
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            // get the CSS class and generate output
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            $css = $this->formatConf(' class="%s"', 'css');
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            $start = '<a'.$css.' href="'.$href.$as.'"'.$nobg.'>';
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            $end = '</a>';
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        } else {
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            // PAGE DOES NOT EXIST.
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            // link to the page view, but we have to build
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            // the HREF.  we support both the old form where
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            // the page always comes at the end, and the new
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            // form that uses %s for sprintf()
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            $href = $this->getConf('view_url');
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            if (strpos($href, '%s') === false) {
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                // use the old form (page-at-end)
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                $href = $href . $page . $anchor;
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            } else {
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                // use the new form (sprintf format string)
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                $href = sprintf($href, $page . $anchor);
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            }
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            // get the CSS class and generate output
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            $css = $this->formatConf(' class="%s"', 'css');
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            $start = '<a'.$css.' href="'.$href.$as.'"'.$nobg.' class="wikilink-nonexistent">';
1
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            $end = '</a>';
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        }
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        if (!strlen($text)) {
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            $start .= $this->textEncode($options['page']);
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        }
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        if (isset($type)) {
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            switch ($type) {
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            case 'start':
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                $output = $start;
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                break;
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            case 'end':
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                $output = $end;
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                break;
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            }
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        } else {
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            $output = $start.$text.$end;
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        }
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        return $output;
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    }
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}
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?>