<?php
/*
Plugin Name: Advanced XML Reader
Plugin URI: http://dev.raymonddesign.nl/wordpress-plugins/advanced-xml-reader/
Description: Use the content of every XML file in your posts.
Version: 0.3
Author: RaymondDesign
Author URI: http://www.raymonddesign.nl/
License: GPL2
*/

/*  Copyright 2010  RaymondDesign  (email : webmaster@raymonddesign.nl)

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License, version 2, as 
    published by the Free Software Foundation.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/


// Include a curl library, this lib caches the data, so it's much faster
// Author: Mike Purvis, http://uwmike.com/maps/curl.php.source
    require_once('curl.php');

// Define some plugin variables
    $plugindata['dir']          = basename(dirname(__FILE__));
    $plugindata['fullname']     = 'Advanced XML Reader';
    $plugindata['nicename']     = 'advanced-xml-reader';
    $plugindata['shortname']    = 'Advanced XML';
    $plugindata['shortnicename']= 'advanced-xml';

// Load/enable some hooks/functions
    load_plugin_textdomain( 'advanced-xml-reader', 'wp-content/plugins/'.$plugindata['dir']);
    add_action('admin_menu', 'aXMLreader_AdminMenu');
    add_action('the_content', 'aXMLreader_ParseTags',0);
    add_filter('widget_title', 'aXMLreader_ParseTags');
    add_filter('widget_text', 'aXMLreader_ParseTags');

// Define some usefull functions
    /**
     * Cuts a string after $number characters and puts ... after it
     * Return: string
     */
        function aXMLreader_cutstr($string, $number){
            if(strlen($string) > $number){
                $string = substr($string,0,$number).'...';
            }
            return $string;
        }
        
    /**
     * Transforms the raw SimpleXMLElement array into a 3 dimensional array
     * Return: Array
     */
        function aXMLreader_show_data($array,$return=array(),$parent=''){
            global $list_count;
            $children = $array->children();
            foreach($children as $child){
                $strchild = trim(strval($child));
                if(!empty($strchild)){
                    if(empty($parent)){
                        $return[strtolower($child->getName())][0] = $strchild;
                    }else{
                        if(!isset($list_count[$parent])){ $list_count[$parent] = 1; }
                        $return[$parent][$list_count[$parent]][] = $strchild;
                    }
                }
                if(false !== $child->children()){
                    $return = aXMLreader_show_data($child,$return,strtolower($child->getName()));
                }
            }
            if(count($children) != 0){
                $list_count[$parent]++;
            }
            return $return;
        }

    /**
     * Transforms the array from aXMLreader_show_data into two arrays, which can be used in str_replace
     * Return: A array containing two arrays: patterns & replacements
     */
        function aXMLreader_create_replace_arrays($array, $row_delimiter, $item_delimiter){
            global $plugindata;
            $pattern = $replace = array();
            foreach($array as $key => $value){
                foreach($value as $key2 => $value2){
                    if(is_array($value2)){
                        $array[$key][$key2] = implode($item_delimiter,$array[$key][$key2]);
                    }
                }
                $pattern[] = '['.$plugindata['shortnicename'].':'.$key.']';
                $replace[] = implode($row_delimiter,$array[$key]);
            }
            return array('pattern' => $pattern, 'replace' => $replace);
        }

//
// Back end plugin code
//
    /**
     * Write the admin link in the Settings menu
     * Return: -
     */
        function aXMLreader_AdminMenu(){
            global $plugindata;
        	add_options_page($plugindata['fullname'], $plugindata['shortname'], 9, $plugindata['nicename'], 'aXMLreader_AdminPage');
            add_action('admin_init', 'register_aXMLreader_settings');        
        }
        
    /**
     * Register allowed settings fields
     */
        function register_aXMLreader_settings() {
            global $plugindata;
        	register_setting($plugindata['nicename'], $plugindata['nicename'].'_feed');
            register_setting($plugindata['nicename'], $plugindata['nicename'].'_itemdel');
            register_setting($plugindata['nicename'], $plugindata['nicename'].'_rowdel');
        }
        
    /**
     * Show the admin page to manage feeds
     * Return: - (echo is used)
     */
    
        function aXMLreader_AdminPage(){
            global $plugindata;
            echo '<div class="wrap">
                    <h2>'.$plugindata['fullname'].' '.__('Options', 'advanced-xml-reader').'</h2>
                    <form method="post" action="options.php">';
                        settings_fields($plugindata['nicename']);
            echo '      <table class="form-table">
                            <tr valign="top">
                            <th scope="row">'.__('XML file', 'advanced-xml-reader').'</th>
                            <td><input type="text" name="'.$plugindata['nicename'].'_feed" value="'.get_option($plugindata['nicename'].'_feed').'" /></td>
                            </tr>
                            <tr valign="top">
                            <th scope="row">'.__('Item delimiter', 'advanced-xml-reader').'</th>
                            <td><input type="text" name="'.$plugindata['nicename'].'_itemdel" value="'.get_option($plugindata['nicename'].'_itemdel').'" /><br />
                                <small>'.__('Eg', 'advanced-xml-reader').': <pre style="display: inline;">-</pre>, <pre style="display: inline;">/</pre>, <pre style="display: inline;">&lt;/td&gt;&lt;td&gt;</pre>', 'advanced-xml-reader</small></td>
                            </tr>
                            <tr valign="top">
                            <th scope="row">'.__('Row delimiter', 'advanced-xml-reader').'</th>
                            <td><input type="text" name="'.$plugindata['nicename'].'_rowdel" value="'.get_option($plugindata['nicename'].'_rowdel').'" /><br />
                                <small>'.__('Eg', 'advanced-xml-reader').': <pre style="display: inline;">&lt;br /&gt;</pre>, <pre style="display: inline;">&lt;/li&gt;&lt;li&gt;</pre>, <pre style="display: inline;">&lt;/tr&gt;&lt;tr&gt;</pre>', 'advanced-xml-reader</small></td>
                            </tr>
                        </table>
                        <p class="submit">
                        <input type="submit" class="button-primary" value="'.__('Save Changes', 'advanced-xml-reader').'" />
                        </p>
                    </form>
                </div>';
            if($feed = get_option($plugindata['nicename'].'_feed')){
                $curl = new CURL();
                //$curl->enableCache();
                $data = $curl->get($feed);
                $xml = new SimpleXmlElement($data, LIBXML_NOCDATA);
                $taglist = aXMLreader_show_data($xml);
                echo '<table>
                        <tr><td><strong>'.__('XML tag', 'advanced-xml-reader').'</strong></td><td><strong>'.__('Value', 'advanced-xml-reader').'</strong></td><td><strong>'.__('How to use in a post', 'advanced-xml-reader').'</strong></td></tr>';
                    foreach($taglist as $key => $value){
                        $tmpvalue = '<em>This is a list containing multiple values.</em>';
                        if(isset($value[0])){
                            $tmpvalue = aXMLreader_cutstr($value[0],30);
                        }
                        echo '<tr><td>'.$key.'</td><td>'.$tmpvalue.'</td><td>['.$plugindata['shortnicename'].':'.$key.']</td></tr>';
                    }  
                echo '</table>
                    <div style="border: 1px solid #ccc; background-color: #EEEEEE; padding: 5px;padding-bottom:13px; width: 700px;margin-top:30px;">
                        <form action="https://www.paypal.com/cgi-bin/webscr" method="post">
                            <input type="hidden" name="cmd" value="_s-xclick">
                            <input type="hidden" name="encrypted" value="-----BEGIN PKCS7-----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-----END PKCS7-----
                            ">
                            <input style="float: left;" type="image" src="https://www.paypal.com/en_GB/i/btn/btn_donate_LG.gif" border="0" name="submit" alt="PayPal - The safer, easier way to pay online.">
                            <img alt="" border="0" src="https://www.paypal.com/nl_NL/i/scr/pixel.gif" width="1" height="1">
                        </form>
                        <div style="margin-top: 7px; padding-left: 110px;">'.__('If you like this plugin you can contribute by making a small donation to the author.', 'advanced-xml-reader').'</div>
                    </div>';
            }
        }
        
//      
//Front end plugin code
//
    /**
     * Replaces the tags used in posts in real values
     * Return: $text (string)
     */
     function aXMLreader_ParseTags($text){
        global $plugindata, $patterns, $replacements;
        if($feed = get_option($plugindata['nicename'].'_feed')){
            $curl = new CURL();
            //$curl->enableCache();
            $data = $curl->get($feed);
            $xml = new SimpleXmlElement($data, LIBXML_NOCDATA);
            $taglist = aXMLreader_create_replace_arrays(aXMLreader_show_data($xml),get_option($plugindata['nicename'].'_rowdel'),get_option($plugindata['nicename'].'_itemdel'));
            //aXMLreader_multiarray_walk($xml,'aXMLreader_fill_replace_arrays');
            $text = str_replace($taglist['pattern'], $taglist['replace'], $text);
        }
        return $text;
     }
?>