<?php
/*
Plugin Name: wp-xbel v2
Plugin URI: http://blog.stefan-macke.de/2006/07/18/firefox-bookmarks-mit-wordpress-anzeigen/
Description: Display XBEL XML Bookmarks files.
Author: Stefan Macke (original version by crea-doo)
Version: 2.0
Author URI: http://blog.stefan-macke.de
*/

/*
Please notice that I have only added some minor features. The 
original version of the plugin can be downloaded here:
http://development.crea-doo.at/wordpress/plugins/wp-xbel/
Thanks to crea-doo for developing this great plugin!
Stefan

New features in v2.0:
  * valid and indented XHTML
  * possibility to exclude folders from being shown    
*/

//---------------------------\\
// configuration
//---------------------------\\

// Filepath Options
$rootpath = get_bloginfo('siteurl') . '/wp-content/plugins/wp-xbel/';

$xbel_options['path_to_xml']         = $rootpath . 'xbel.xml';
$xbel_options['path_to_css']         = $rootpath . 'wp-xbel.css';
$xbel_options['path_to_script']     = $rootpath . 'wp-xbel.js';

// Folder Display Options
$xbel_options['folder_display']     = 'collapsable';            // option values: 'collapsable' or 'flat'
$xbel_options['folder_collapse']      = 'each';                    // option values: 'each' or 'root'
$xbel_options['folder_open']         = $rootpath . 'img/folder_open.gif';
$xbel_options['folder_closed']         = $rootpath . 'img/folder_closed.gif';

// Fave Icon Options
$xbel_options['display_icon']         = TRUE;
$xbel_options['display_default']     = TRUE;
$xbel_options['default_icon']         = $rootpath . 'img/bookmark.gif';

// Description Options
$xbel_options['display_desc']         = 'none';                    // none, folder, bookmark, all
$xbel_options['desc_as_title']         = TRUE;

// Link Options
$xbel_options['link_nofollow']         = TRUE;
$xbel_options['submit_icon']         = FALSE;                    // Give WP User submitted links a WP favicon
$xbel_options['submit_owner']         = 'WP User';                // Define owner of submitted links
$xbel_options['submit_desc']         = 'Submitted by Test';        // Define description of submitted links

// Root Folder List Options
$xbel_options['list_start']         = '<div class="xbel_folder_title_down">';
$xbel_options['list_tween']         = '</div><div class="xbel_folder_title_down">';
$xbel_options['list_end']           = '</div>';

// this is a list of folders, you don't want to be shown on the website
$xbel_options['exclude_folders']    = array("Toolbar");

/*
    DO NOT EDIT BELOW UNLESS YOU KNOW WHAT YOU'RE DOING!
    IF YOU KNOW WHAT YOU'RE DOING: HAVE FUN
*/

extract($xbel_options);

if(IsSet($_POST['xbel_form']) && $_POST['xbel_form']) {
      if(IsSet($_POST['xbel_url'])) {
        if(substr($_POST['xbel_url'], 0, 7) != 'http://') {
            $xbel_url = 'http://' . $_POST['xbel_url'];
        } else {
            $xbel_url = $_POST['xbel_url'];
        }
        
        if(!IsSet($_POST['xbel_title'])) {
            $xbel_title = $xbel_url;
        } else {
            $xbel_title = $_POST['xbel_title'];
        }
        
        $xml = str_replace('</xbel>', '', file_get_contents($path_to_xml));
        
        $fp = fopen($path_to_xml, "w");
        $xml .= '<bookmark href="' . str_replace('&', '&amp;', $xbel_url) . '">';
        $xml .= '<title>' . $xbel_title . '</title>';
        $xml .= '<info><metadata owner="' . $submit_owner . '"';
        if($submit_icon) $xml .= ' Icon="data:image/x-icon;base64,AAABAAEAEBAAAAAAAABoBQAAFgAAACgAAAAQAAAAIAAAAAEACAAAAAAAQAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAA////AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAQABAAAAAQAAAAAAAAAAAQABAAEAAAEAAAAAAAAAAAEAAQABAAABAQEAAAAAAAABAAEAAQAAAQAAAQAAAAAAAQAAAAEAAAEBAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="';
        $xml .= '/></info>';
        $xml .= '<desc>' . $submit_desc . '</desc>';
        $xml .= '</bookmark>';
        $xml .= '</xbel>';
        fwrite ($fp,$xml);
        fclose($fp);
      }
}

function wp_xbel() {
    global $xbel_options;
    extract($xbel_options);
    
    if($folder_display != 'collapsable' && $folder_display != 'flat') $folder_display = 'collapsable';
    if($folder_collapse != 'each' && $folder_collapse != 'root') $folder_collapse = 'each';
    
      if($folder_display == 'collapsable') {
    ?>
    
    <?php
      }
    
      $xml = file_get_contents($path_to_xml);
      
      //echo $xml;
      
    $values = '';
    $index = '';
    $parser = xml_parser_create();
    xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
    xml_parse_into_struct($parser,$xml,$values,$index);
    xml_parser_free($parser);
    
    $exclusion = false;
    $exclusion_level = 0;
    
      #print_r($values);
    for($x = 0; $x < sizeof($values); $x++) {
        switch($values[$x]['tag']) {
        case 'xbel':
            switch($values[$x]['type']) {
            case 'open':
                echo '<div class="xbel_xbel">' . "\n";
                
                // Process rest of xbel information
                $x++;
                while($values[$x]['tag'] != 'bookmark' && $values[$x]['tag'] != 'folder' && $values[$x]['tag'] != 'xbel') {
                    if($values[$x]['tag'] == 'title') {
                        $xbel_title = $values[$x]['value'];
                    }
                    $x++;
                }
                $x--;
                
                // Format and print xbel information
                #echo '<h1 class="xbel_xbel_title">'.$xbel_title.'</h1>';
                
                // clear out variables
                if(IsSet($xbel_title)) unset($xbel_title);
                
                break;
            case 'close':
                echo '</div>' . "\n";
                break;
            }
            break;
                
        case 'folder':
            switch($values[$x]['type']) {
            case 'open':
                $fldr_id = str_replace('rdf%3A#$', 'a', $values[$x]['attributes']['id']);
                
                // Process rest of folder information
                $x++;
                while($values[$x]['tag'] != 'bookmark' && $values[$x]['tag'] != 'folder') {
                      if($values[$x]['tag'] == 'title') {
                            $fldr_title = $values[$x]['value'];
                            $fldr_level = $values[$x]['level'] - 1;
                      } else if($values[$x]['tag'] == 'desc') {
                            $fldr_desc = $values[$x]['value'];
                      }
                      $x++;
                }
                $x--;

                // exclude folders
                if (in_array($fldr_title, $xbel_options['exclude_folders']))
                {
                    $exclusion = true;
                    $exclusion_level = $fldr_level;
                }

                if (!$exclusion)
                {
                    echo "\t" . '<div class="xbel_folder">' . "\n"; 

                    // Format and print folder information
                       if ($folder_display == 'collapsable' && ($folder_collapse == 'each' || ($folder_collapse == 'root' && $values[$x]['level'] == 3))) {
                            echo "\t\t" . '<div class="xbel_folder_title_closed" id="' . $fldr_id . '_title"><a href="JavaScript:toggleFolderView(' . "'" . $fldr_id . "'" . ')">' . $fldr_title . '</a></div>' . "\n";
                           echo "\t\t" . '<div class="xbel_folder_contents" id="' . $fldr_id . '" style="DISPLAY: none">' . "\n";
                    } else {
                              echo "\t\t" . '<div class="xbel_folder_title_open">' . $fldr_title . '</div>' . "\n";
                              echo "\t\t" . '<div class="xbel_folder_contents">' . "\n";
                       }
                       if(($display_desc == 'folder' || $display_desc == 'all') && strlen($fldr_desc) > 0) echo "\t" . '<div class="xbel_folder_desc">' . $fldr_desc . '</div>' . "\n";
                }
                // clear out variables
                if(IsSet($fldr_id)) unset($fldr_id);
                if(IsSet($fldr_title)) unset($fldr_title);
                if(IsSet($fldr_desc)) unset($fldr_desc);
                
                break;
            case 'close':
                if (!$exclusion)
                {
                    echo "\t\t</div>\n\t</div>\n";
                }
                // reset exclusion
                if ($values[$x]['level'] == $exclusion_level)
                {
                    $exclusion = false;
                }
                break;
            }
            break;
                
        case 'bookmark':
            switch($values[$x]['type']) {
            case 'open':
                $last_obj = $values[$x]['tag'];
                $bkmk_url = $values[$x]['attributes']['href'];
                
                // Process rest of bookmark information
                $x++;
                while($values[$x]['tag'] != 'bookmark') {
                      if($values[$x]['tag'] == 'title') {
                            $bkmk_title = $values[$x]['value'];
                      } else if($values[$x]['tag'] == 'desc') {
                            $bkmk_desc = $values[$x]['value'];
                      } else if($values[$x]['tag'] == 'metadata' && IsSet($values[$x]['attributes']['Icon'])) {
                            $bkmk_icon = $values[$x]['attributes']['Icon'];
                      }
                      $x++;
                }
                
                if (!$exclusion)
                {
                    // Format and print bookmark information
                    echo "\t\t\t" . '<div class="xbel_bookmark_title">' . "\n";
                    if(strstr($_SERVER['HTTP_USER_AGENT'], 'MSIE')) {
                        if($display_default) echo "\t\t\t\t" . '<img alt="Default Icon" src="' . $default_icon . '" width="16" height="16" align="middle" />' . "\n";
                    } else {
                        if(IsSet($bkmk_icon) && $display_icon) echo "\t\t\t\t" . '<img alt="Bookmark Icon" src="' . $bkmk_icon.'" width="16" height="16" align="middle" />' . "\n";
                        if((!IsSet($bkmk_icon) && $display_default) || (!$display_icon && $display_default)) echo "\t\t\t\t" . '<img alt="Default Icon" src="' . $default_icon . '" width="16" height="16" align="middle" />' . "\n";
                    }
                    echo "\t\t\t\t" . '<a href="' . htmlspecialchars($bkmk_url) . '"';
                    if($link_nofollow) echo ' rel="nofollow"';
                    if($desc_as_title) echo ' title="' . preg_replace("/ {2,}|\t|\n|\r/", ' ', htmlentities($bkmk_desc)) . '"';
                    echo '>' . htmlspecialchars($bkmk_title) . "</a>\n\t\t\t</div>" . "\n";
                    if($display_desc == 'bookmark' || $display_desc == 'all') echo "\t\t\t" . '<div class="xbel_bookmark_desc">' . $bkmk_desc . '</div>' . "\n";
                }
                            
                // clear out variables
                if(IsSet($bkmk_title)) unset($bkmk_title);
                if(IsSet($bkmk_url)) unset($bkmk_url);
                if(IsSet($bkmk_desc)) unset($bkmk_desc);
                if(IsSet($bkmk_icon)) unset($bkmk_icon);
                
                break;
            }
            break;
                
        case 'separator':
            if (!$exclusion)
            {
                echo "\t" . '<div class="xbel_separator"></div>' . "\n";
            }
            break;
        }
    }
}

function wp_xbel_root_list() {
    global $xbel_options;
    extract($xbel_options);
    
    $xml = file_get_contents($path_to_xml);
    
    $values = '';
    $index = '';
    $list = array();
    $started = FALSE;
    
    $parser = xml_parser_create();
    xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
    xml_parse_into_struct($parser, $xml, $values, $index);
    xml_parser_free($parser);
    
    for($x = 0; $x < sizeof($values); $x++) {
        if($values[$x]['tag'] == 'folder' &&
               $values[$x]['type'] == 'open' &&
               $values[$x]['level'] == 2) {
            
              if($started) {
                echo $list_tween;
              } else {
                echo $list_start;
                $started = TRUE;
              }
            
              echo '<a href="#' . str_replace('rdf%3A#$', '', $values[$x]['attributes']['id']) . '">' . $values[$x+1]['value'] . '</a>';
        }
    }
    if($started) {
        echo $list_end;
    }
}

function wp_xbel_form() {
?>
    <form method="POST">
        <input type="hidden" name="xbel_form" value="TRUE" />
        <table border="0" style="margin-top: 20px">
            <tr>
                <td colspan="2"><span style="font-size: larger; font-weight: bold">Submit Link</span></td>
            </tr>
            <tr>
                <td valign="center"><span style="font-weight: bold">Title:</span></td>
                <td><input type="text" name="xbel_title" /></td>
            </tr>
            <tr>
                <td valign="center"><span style="font-weight: bold">Link:</span></td>
                <td><input type="text" name="xbel_url" /></td>
            </tr>
            <tr>
                <td colspan="2"><input type="submit" value="Submit Link" />
            </tr>
        </table>
    </form>
<?php
}

function wp_xbel_add_header($post_ID) {
    global $xbel_options;
    extract($xbel_options);
?>
    <link rel="stylesheet" href="<?= $path_to_css ?>" type="text/css" />
    <script type='text/javascript' language='javascript'>
    function toggleFolderView (szDivID) {
        var obj = document.layers ? document.layers[szDivID] : document.getElementById ?  document.getElementById(szDivID).style : document.all[szDivID].style; 
        obj.display = (obj.display == 'none' ? 'block' : 'none'); 
        var obj_title = document.layers ? document.layers[szDivID+'_title'] : document.getElementById ?  document.getElementById(szDivID+'_title').style : document.all[szDivID+'_title'].style;
        obj_title.backgroundImage = (obj_title.backgroundImage == "url(<?= $xbel_options['folder_open'] ?>)" ? "url(<?= $xbel_options['folder_closed'] ?>)" : "url(<?= $xbel_options['folder_open'] ?>)");
    }
    </script>    
<?php
    return $post_ID;
}

add_action('wp_head', 'wp_xbel_add_header');
?>