root/wordpress-mobile-edition/trunk/wp-mobile.php

<?php

// WordPress Mobile Edition
//
// Copyright (c) 2002-2008 Alex King
// http://alexking.org/projects/wordpress
//
// Released under the GPL license
// http://www.opensource.org/licenses/gpl-license.php
//
// **********************************************************************
// 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. 
// *****************************************************************

/*
Plugin Name: WordPress Mobile Edition
Plugin URI: http://alexking.org/projects/wordpress
Description: Show a mobile view of the post/page if the visitor is on a known mobile device. Questions on configuration, etc.? Make sure to read the README.
Author: Alex King
Author URI: http://alexking.org
Version: 2.1a
*/ 

if (!function_exists('is_admin_page')) {
    function is_admin_page() {
        if (function_exists('is_admin')) {
            return is_admin();
        }
        if (function_exists('check_admin_referer')) {
            return true;
        }
        else {
            return false;
        }
    }
}

$_SERVER['REQUEST_URI'] = ( isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : $_SERVER['SCRIPT_NAME'] . (( isset($_SERVER['QUERY_STRING']) ? '?' . $_SERVER['QUERY_STRING'] : '')));

function akm_check_mobile() {
    if (!isset($_SERVER["HTTP_USER_AGENT"]) || (isset($_COOKIE['akm_mobile']) && $_COOKIE['akm_mobile'] == 'false')) {
        return false;
    }
    if (akm_mobile_exclude()) {
        return false;
    }
    if (isset($_COOKIE['akm_mobile']) && $_COOKIE['akm_mobile'] == 'true') {
        return true;
    }
    $whitelist = array(
        'Stand Alone/QNws'
    );
    foreach ($whitelist as $browser) {
        if (strstr($_SERVER["HTTP_USER_AGENT"], $browser)) {
            return false;
        }
    }
    $small_browsers = array(
        '2.0 MMP'
        ,'240x320'
        ,'AvantGo'
        ,'BlackBerry'
        ,'Blazer'
        ,'Cellphone'
        ,'Danger'
        ,'DoCoMo'
        ,'Elaine/3.0'
        ,'EudoraWeb'
        ,'hiptop'
        ,'IEMobile'
        ,'KYOCERA/WX310K'
        ,'LG/U990'
        ,'MIDP-2.'
        ,'MMEF20'
        ,'MOT-V'
        ,'NetFront'
        ,'Newt'
        ,'Nintendo Wii'
        ,'Nitro' // Nintendo DS
        ,'Nokia'
        ,'Opera Mini'
        ,'Palm'
        ,'PlayStation Portable'
        ,'portalmmm'
        ,'Proxinet'
        ,'ProxiNet'
        ,'SHARP-TQ-GX10'
        ,'Small'
        ,'SonyEricsson'
        ,'Symbian OS'
        ,'SymbianOS'
        ,'TS21i-10'
        ,'UP.Browser'
        ,'UP.Link'
        ,'Windows CE'
        ,'WinWAP'
    );

    foreach ($small_browsers as $browser) {
        if (strstr($_SERVER["HTTP_USER_AGENT"], $browser)) {
            return true;
        }
    }
    return false;
}

function akm_mobile_exclude() {
    $exclude = false;
    $pages_to_exclude = array(
        'wp-admin'
        ,'wp-comments-post.php'
        ,'wp-mail.php'
        ,'wp-login.php'
    );
    foreach ($pages_to_exclude as $exclude_page) {
        if (strstr(strtolower($_SERVER['REQUEST_URI']), $exclude_page)) {
            $exclude = true;
        }
    }
    return $exclude;
}

function akm_template($theme) {
    if (akm_installed()) {
        return apply_filters('akm_template', 'wp-mobile');
    }
    else {
        return $theme;
    }
}

function akm_installed() {
    return is_dir(ABSPATH.'/wp-content/themes/wp-mobile');
}

if (is_admin_page() && !akm_installed()) {
    global $wp_version;
    if (isset($wp_version) && version_compare($wp_version, '2.5', '>=')) {
        add_action('admin_notices', create_function( '', "echo '<div class=\"error\">WP Mobile is incorrectly installed. Please check the <a href=\"http://alexking.org/projects/wordpress/readme?project=wordpress-mobile-edition\">README</a>.</div>';" ) );
    }
}

function akm_mobile_available($content) {
    return $content.'<p><a href="'.get_bloginfo('wpurl').'/index.php?ak_action=accept_mobile">Return to the Mobile Edition</a>.</p>';
}

function akm_mobile_link() {
    echo '<a href="'.get_bloginfo('wpurl').'/index.php?ak_action=force_mobile">Mobile Edition</a>';
}

if (!function_exists('ak_recent_posts')) {
// this is based almost entirely on:
/*
Plugin Name: Recent Posts
Plugin URI: http://mtdewvirus.com/code/wordpress-plugins/
Description: Returns a list of the most recent posts.
Version: 1.07
Author: Nick Momrik
Author URI: http://mtdewvirus.com/
*/
    function ak_recent_posts($count = 5, $before = '<li>', $after = '</li>', $hide_pass_post = true, $skip_posts = 0, $show_excerpts = false, $where = '', $join = '', $groupby = '') {
        global $wpdb;
        $time_difference = get_settings('gmt_offset');
        $now = gmdate("Y-m-d H:i:s",time());
    
        $join = apply_filters('posts_join', $join);
        $where = apply_filters('posts_where', $where);
        $groupby = apply_filters('posts_groupby', $groupby);
        if (!empty($groupby)) { $groupby = ' GROUP BY '.$groupby; }
    
        $request = "SELECT ID, post_title, post_excerpt FROM $wpdb->posts $join WHERE post_status = 'publish' AND post_type != 'page' ";
        if ($hide_pass_post) $request .= "AND post_password ='' ";
        $request .= "AND post_date_gmt < '$now' $where $groupby ORDER BY post_date DESC LIMIT $skip_posts, $count";
        $posts = $wpdb->get_results($request);
        $output = '';
        if ($posts) {
            foreach ($posts as $post) {
                $post_title = stripslashes($post->post_title);
                $permalink = get_permalink($post->ID);
                $output .= $before . '<a href="' . $permalink . '" rel="bookmark" title="Permanent Link: ' . htmlspecialchars($post_title, ENT_COMPAT) . '">' . htmlspecialchars($post_title) . '</a>';
                if($show_excerpts) {
                    $post_excerpt = stripslashes($post->post_excerpt);
                    $output.= '<br />' . $post_excerpt;
                }
                $output .= $after;
            }
        } else {
            $output .= $before . "None found" . $after;
        }
        echo $output;
    }
}

function akm_request_handler() {
    if (isset($_GET['ak_action'])) {
        $url = parse_url(get_bloginfo('home'));
        $domain = $url['host'];
        if (!empty($url['path'])) {
            $path = $url['path'];
        }
        else {
            $path = '/';
        }
        $redirect = false;
        switch ($_GET['ak_action']) {
            case 'reject_mobile':
                setcookie(
                    'akm_mobile'
                    , 'false'
                    , time() + 300000
                    , $path
                    , $domain
                );
                $redirect = true;
                break;
            case 'force_mobile':
            case 'accept_mobile':
                setcookie(
                    'akm_mobile'
                    , 'true'
                    , time() + 300000
                    , $path
                    , $domain
                );
                $redirect = true;
                break;
        }
        if ($redirect) {
            if (!empty($_SERVER['HTTP_REFERER'])) {
                $go = $_SERVER['HTTP_REFERER'];
            }
            else {
                $go = get_bloginfo('home');
            }
            header('Location: '.$go);
            die();
        }
    }
}
add_action('init', 'akm_request_handler');

if (akm_check_mobile()) {
    add_action('template', 'akm_template');
    add_action('option_template', 'akm_template');
    add_action('option_stylesheet', 'akm_template');
}

if (isset($_COOKIE['akm_mobile']) && $_COOKIE['akm_mobile'] == 'false') {
    add_action('the_content', 'akm_mobile_available');
}

?>