root/wp-stats/trunk/wp-stats.php

<?php
/*
Plugin Name: WP-Stats
Plugin URI: http://lesterchan.net/portfolio/programming/php/
Description: Display your WordPress blog statistics. Ranging from general total statistics, some of my plugins statistics and top 10 statistics.
Version: 2.31
Author: Lester 'GaMerZ' Chan
Author URI: http://lesterchan.net
*/


/*  
    Copyright 2008  Lester Chan  (email : lesterchan@gmail.com)

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/


### Use WordPress 2.6 Constants
if (!defined('WP_CONTENT_DIR')) {
    define( 'WP_CONTENT_DIR', ABSPATH.'wp-content');
}
if (!defined('WP_CONTENT_URL')) {
    define('WP_CONTENT_URL', get_option('siteurl').'/wp-content');
}
if (!defined('WP_PLUGIN_DIR')) {
    define('WP_PLUGIN_DIR', WP_CONTENT_DIR.'/plugins');
}
if (!defined('WP_PLUGIN_URL')) {
    define('WP_PLUGIN_URL', WP_CONTENT_URL.'/plugins');
}


### Create Text Domain For Translations
add_action('init', 'stats_textdomain');
function stats_textdomain() {
    if (!function_exists('wp_print_styles')) {
        load_plugin_textdomain('wp-stats', 'wp-content/plugins/wp-stats');
    } else {
        load_plugin_textdomain('wp-stats', false, 'wp-stats');
    }
}


### Function: WP-Stats Menu
add_action('admin_menu', 'stats_menu');
function stats_menu() {
    if (function_exists('add_submenu_page')) {
        add_submenu_page('index.php',  __('WP-Stats', 'wp-stats'),  __('WP-Stats', 'wp-stats'), 1, 'wp-stats/wp-stats.php', 'display_stats');
    }
    if (function_exists('add_options_page')) {
        add_options_page(__('Stats', 'wp-stats'), __('Stats', 'wp-stats'), 'manage_options', 'wp-stats/stats-options.php');
    }
}


### Function: WP-Stats Manager CSS
add_action('wp_head', 'stats_css');
function stats_css() {    
    if(!function_exists('pagenavi_css')) {
        echo "\n".'<!-- Start Of Script Generated By WP-Stats 2.31 -->'."\n";
        if(@file_exists(TEMPLATEPATH.'/stats-css.css')) {
            echo '<link rel="stylesheet" href="'.get_stylesheet_directory_uri().'/stats-css.css" type="text/css" media="screen" />'."\n";    
        } else {
            echo '<link rel="stylesheet" href="'.WP_PLUGIN_URL.'/wp-stats/stats-css.css" type="text/css" media="screen" />'."\n";
        }    
        echo '<!-- End Of Script Generated By WP-Stats 2.31 -->'."\n";
    }
}


### Display WP-Stats Admin Page
function display_stats() {
    $stats_page = stats_page();
    echo "<div class=\"wrap\">\n$stats_page</div>\n";
}


### Function: Get Total Authors
function get_totalauthors($display = true) {
    global $wpdb;
    $totalauthors = $wpdb->get_var("SELECT COUNT(ID) FROM $wpdb->users LEFT JOIN $wpdb->usermeta ON $wpdb->usermeta.user_id = $wpdb->users.ID WHERE $wpdb->users.user_activation_key = '' AND $wpdb->usermeta.meta_key = '".$wpdb->prefix."user_level' AND (meta_value+0.00) > 1");
    if($display) {
        echo number_format($totalauthors);
    } else {
        return number_format($totalauthors);
    }
}


### Function: Get Total Posts
function get_totalposts($display = true) {
    global $wpdb;
    $totalposts = $wpdb->get_var("SELECT COUNT(ID) FROM $wpdb->posts WHERE post_type = 'post' AND post_status = 'publish'");
    if($display) {
        echo number_format($totalposts);
    } else {
        return number_format($totalposts);
    }
}


### Function: Get Total Pages
function get_totalpages($display = true) {
    global $wpdb;
    $totalpages = $wpdb->get_var("SELECT COUNT(ID) FROM $wpdb->posts WHERE post_type = 'page' AND post_status = 'publish'");
    if($display) {
        echo number_format($totalpages);
    } else {
        return number_format($totalpages);
    }
}


### Function: Get Total Comments
function get_totalcomments($display = true) {
    global $wpdb;
    $totalcomments = $wpdb->get_var("SELECT COUNT(comment_ID) FROM $wpdb->comments WHERE comment_approved = '1'");
    if($display) {
        echo number_format($totalcomments);
    } else {
        return number_format($totalcomments);
    }
}


### Function: Get Total Comments Poster
function get_totalcommentposters($display = true) {
    global $wpdb;
    $totalcommentposters = $wpdb->get_var("SELECT COUNT(DISTINCT comment_author) FROM $wpdb->comments WHERE comment_approved = '1' AND comment_type = ''");
    if($display) {
        echo number_format($totalcommentposters);
    } else {
        return number_format($totalcommentposters);
    }
}


### Function: Get Total Links
function get_totallinks($display = true) {
    global $wpdb;
    $totallinks = $wpdb->get_var("SELECT COUNT(link_id) FROM $wpdb->links");
    if($display) {
        echo number_format($totallinks);
    } else {
        return number_format($totallinks);
    }
}


### Function: Get Recent Posts
function get_recentposts($mode = '', $limit = 10, $display = true) {
    global $wpdb, $post;
    $where = '';
    $temp = '';
    if(!empty($mode) && $mode != 'both') {
        $where = "post_type = '$mode'";
    } else {
        $where = '1=1';
    }
    $recentposts = $wpdb->get_results("SELECT $wpdb->posts.*, $wpdb->users.* FROM $wpdb->posts LEFT JOIN $wpdb->users ON $wpdb->users.ID = $wpdb->posts.post_author WHERE user_activation_key = '' AND post_date < '".current_time('mysql')."' AND $where AND post_status = 'publish' AND post_password = '' ORDER  BY post_date DESC LIMIT $limit");
    if($recentposts) {
        foreach ($recentposts as $post) {
            $post_title = get_the_title();
            $post_date = get_the_time(get_option('date_format').' @ '.get_option('time_format'));
            $display_name = stripslashes($post->display_name);
            $temp .= "<li>$post_date - <a href=\"".get_permalink()."\" title=\"".sprintf(__('View post %s', 'wp-stats'), $post_title)."\">$post_title</a> ($display_name)</li>\n";
        }
    } else {
        $temp = '<li>'.__('N/A', 'wp-stats').'</li>';
    }
    if($display) {
        echo $temp;
    } else {
        return $temp;
    }
}


### Function: Get Recent Comments
function get_recentcomments($mode = '', $limit = 10, $display = true) {
    global $wpdb, $post;
    $where = '';
    $temp = '';
    if(!empty($mode) && $mode != 'both') {
        $where = "post_type = '$mode'";
    } else {
        $where = '1=1';
    }
    $recentcomments = $wpdb->get_results("SELECT * FROM $wpdb->posts INNER JOIN $wpdb->comments ON $wpdb->posts.ID = $wpdb->comments.comment_post_ID WHERE comment_approved = '1' AND comment_type = '' AND post_date < '".current_time('mysql')."' AND $where AND post_status = 'publish' AND post_password = '' ORDER  BY comment_date DESC LIMIT $limit");
    if($recentcomments) {
        foreach ($recentcomments as $post) {
            $post_title = get_the_title();
            $comment_author = htmlspecialchars(stripslashes($post->comment_author));
            $comment_date = mysql2date(get_option('date_format').' @ '.get_option('time_format'), $post->comment_date);
            $temp .= "<li>$comment_date - $comment_author (<a href=\"".get_permalink()."#comment-".$post->comment_ID."\" title=\"".sprintf(__('View comments in post %s', 'wp-stats'), $post_title)."\">$post_title</a>)</li>\n";
        }
    } else {
        $temp = '<li>'.__('N/A', 'wp-stats').'</li>';
    }
    if($display) {
        echo $temp;
    } else {
        return $temp;
    }
}


### Function: Get Top Commented Posts
function get_mostcommented($mode = '', $limit = 10, $chars = 0, $display = true) {
    global $wpdb, $post;
    $where = '';
    $temp = '';
    if(!empty($mode) && $mode != 'both') {
        $where = "post_type = '$mode'";
    } else {
        $where = '1=1';
    }
    $mostcommenteds = $wpdb->get_results("SELECT $wpdb->posts.*, COUNT($wpdb->comments.comment_post_ID) AS 'comment_total' FROM $wpdb->posts LEFT JOIN $wpdb->comments ON $wpdb->posts.ID = $wpdb->comments.comment_post_ID WHERE comment_approved = '1' AND post_date < '".current_time('mysql')."' AND $where AND post_status = 'publish' AND post_password = '' GROUP BY $wpdb->comments.comment_post_ID ORDER  BY comment_total DESC LIMIT $limit");
    if($mostcommenteds) {
        if($chars > 0) {
            foreach ($mostcommenteds as $post) {
                $post_title = get_the_title();
                $comment_total = number_format_i18n($post->comment_total);
                $temp .= "<li><a href=\"".get_permalink()."\" title=\"".sprintf(__('View comments in post %s', 'wp-stats'), $post_title)."\">".snippet_text($post_title, $chars)."</a> - $comment_total ".__('comments', 'wp-stats')."</li>";
            }
        } else {
            foreach ($mostcommenteds as $post) {
                $post_title = get_the_title();
                $comment_total = number_format_i18n($post->comment_total);
                $temp .= "<li><a href=\"".get_permalink()."\" title=\"".sprintf(__('View comments in post %s', 'wp-stats'), $post_title)."\">$post_title</a> - $comment_total ".__('comments', 'wp-stats')."</li>";
            }
        }
    } else {
        $temp = '<li>'.__('N/A', 'wp-stats').'</li>';
    }
    if($display) {
        echo $temp;
    } else {
        return $temp;
    }
}


### Function: Get Author Stats
function get_authorsstats($mode = '', $display = true) {
    global $wpdb, $wp_rewrite;
    $where = '';
    $temp = '';
    if(!empty($mode) && $mode != 'both') {
        $where = "post_type = '$mode'";
    } else {
        $where = '1=1';
    }
    $posts = $wpdb->get_results("SELECT COUNT($wpdb->posts.ID) AS 'posts_total', $wpdb->users.display_name, $wpdb->users.user_nicename FROM $wpdb->posts LEFT JOIN $wpdb->users ON $wpdb->users.ID = $wpdb->posts.post_author WHERE user_activation_key = '' AND $where AND post_status = 'publish' GROUP BY $wpdb->posts.post_author");
    if($posts) {
        $using_permalink = get_option('permalink_structure');
        $permalink = $wp_rewrite->get_author_permastruct();
        foreach ($posts as $post) {
                $post_author = strip_tags(stripslashes($post->user_nicename));
                $author_link = str_replace('%author%', $post_author, $permalink);
                $display_name = strip_tags(stripslashes($post->display_name));
                $posts_total = number_format_i18n($post->posts_total);                
                if($using_permalink) {
                    $temp .= "<li><a href=\"".get_option('home').$author_link."\" title=\"".sprintf(__('View posts posted by %s', 'wp-stats'), $display_name)."\">$display_name</a> ($posts_total)</li>\n";
                } else {
                    $temp .= "<li><a href=\"".get_option('siteurl')."/?author_name=$post_author\" title=\"".sprintf(__('View posts posted by %s', 'wp-stats'), $display_name)."\">$display_name</a> ($posts_total)</li>\n";
                }
        }
    } else {
        $temp = '<li>'.__('N/A', 'wp-stats').'</li>';
    }
    if($display) {
        echo $temp;
    } else {
        return $temp;
    }
}


### Function: Get Comments' Members Stats
// Treshhold = Number Of Posts User Must Have Before It Will Display His Name Out
// 5 = Default Treshhold; -1 = Disable Treshhold
function get_commentmembersstats($threshhold = -1, $limit = 0, $display = true) {
    global $wpdb;
    $temp = '';
    $limit_sql = '';
    if($limit > 0) {
        $limit_sql = "LIMIT $limit";
    }
    $comments = $wpdb->get_results("SELECT comment_author, COUNT(comment_ID) AS 'comment_total' FROM $wpdb->comments INNER  JOIN $wpdb->posts ON $wpdb->comments.comment_post_ID = $wpdb->posts.ID WHERE comment_approved = '1' AND comment_type = '' AND post_date < '".current_time('mysql')."' AND post_status = 'publish' AND post_password = '' GROUP BY comment_author ORDER BY comment_total DESC $limit_sql");
    if($comments) {
        foreach ($comments as $comment) {
                $comment_total = intval($comment->comment_total);
                // If Total Comments Is Below Threshold
                if($comment_total >= $threshhold) {
                    $comment_author = strip_tags(stripslashes($comment->comment_author));
                    $comment_author_link = urlencode($comment_author);
                    $temp .= "<li><a href=\"".stats_page_link($comment_author_link)."\" title=\"".sprintf(__('View all comments posted by %s', 'wp-stats'), $comment_author)."\">$comment_author</a> (".number_format_i18n($comment_total).")</li>\n";
                }
        }
    } else {
        $temp = '<li>'.__('N/A', 'wp-stats').'</li>';
    }
    if($display) {
        echo $temp;
    } else {
        return $temp;
    }
}


### Function: Get Post Categories Stats
function get_postcats($display = true) {
    global $wpdb;
    $temp = '';
    $defaults = array('type' => 'post', 'style' => 'list', 'show_count' => 1);
    $categories = get_categories($defaults);
    if (empty($categories)){
        $temp .= '<li>'.__('No categories', 'wp-stats').'</li>';
    } else {
        $temp .= walk_category_tree($categories, 0, $defaults);
    }
    if($display) {
        echo $temp;
    } else {
        return $temp;
    }
}


### Function: Get Links Categories Stats
function get_linkcats($display = true) {
    global $wpdb;
    $temp = '';
    $cats = get_categories('type=link');
    if ($cats) {
        foreach ($cats as $cat) {
            $temp .= '<li>'.$cat->cat_name.' ('.number_format_i18n($cat->count).")</li>\n";
        }
    }
    if($display) {
        echo $temp;
    } else {
        return $temp;
    }
}


### Function: Get Tags List
function get_tags_list($display = true) {
    global $wpdb;
    $temp = '';
    $tags = get_tags('orderby=count&order=DESC');
    if ($tags) {
        foreach ($tags as $tag) {
            $temp .= '<li><a href="'.clean_url(get_tag_link($tag->term_id)).'" title="'.sprintf(__('%s topics', 'wp-stats'), number_format_i18n($tag->count)).'">'.$tag->name.'</a> ('.number_format_i18n($tag->count).")</li>\n";
        }
    }
    if($display) {
        echo $temp;
    } else {
        return $temp;
    }
}


### Function: Snippet Text
if(!function_exists('snippet_text')) {
    function snippet_text($text, $length = 0) {
        $text = html_entity_decode($text, ENT_QUOTES, get_option('blog_charset'));
         if (strlen($text) > $length) {
            return htmlentities(substr($text,0,$length), ENT_COMPAT, get_option('blog_charset')).'...';
         } else {
            return htmlentities($text, ENT_COMPAT, get_option('blog_charset'));
         }
    }
}


### Function: Short Code For Inserting Stats Into Page
add_shortcode('page_stats', 'stats_page_shortcode');
function stats_page_shortcode($atts) {
    return stats_page();
}


### Function: Stats Page
function stats_page_link($author, $page = 0) {
    $stats_url = get_option('stats_url');
    if($page > 1) {
        $page = "&amp;stats_page=$page";
    } else {
        $page = '';
    }
    if(strpos($stats_url, '?') !== false) {
        $stats_url = "$stats_url&amp;stats_author=$author$page";
    } else {
        $stats_url = "$stats_url?stats_author=$author$page";
    }
    return $stats_url;
}


### Function: Statistics Page
function stats_page() {
    global $wpdb, $post;    
    // Variables Variables Variables
    $comment_author = urldecode(strip_tags(stripslashes(trim($_GET['stats_author']))));
    $page = intval($_GET['stats_page']);
    $temp_stats = '';
    $temp_post = $post;
    $stats_mostlimit = intval(get_option('stats_mostlimit'));
    $stats_display = get_option('stats_display');

    // Default wp-stats.php Page
    if(empty($comment_author)) {
        // General Stats
        if($stats_display['total_stats'] == 1) {
            $temp_stats .= '<h2 id="GeneralStats">'.__('General Stats', 'wp-stats').'</h2>'."\n";
            $temp_stats .= '<p><strong>'.__('Total Stats', 'wp-stats').'</strong></p>'."\n";
            $temp_stats .= '<ul>'."\n";
            $temp_stats .= '<li><strong>'.get_totalauthors(false).'</strong> '.__('authors to this blog.', 'wp-stats').'</li>'."\n";
            $temp_stats .= '<li><strong>'.get_totalposts(false).'</strong> '.__('posts were posted.', 'wp-stats').'</li>'."\n";
            $temp_stats .= '<li><strong>'.get_totalpages(false).'</strong> '.__('pages were created.', 'wp-stats').'</li>'."\n";
            $temp_stats .= '<li><strong>'.wp_count_terms('post_tag').'</strong> '.__('tags were created.', 'wp-stats').'</li>'."\n";        
            $temp_stats .= '<li><strong>'.get_totalcomments(false).'</strong> '.__('comments were posted.', 'wp-stats').'</li>'."\n";
            $temp_stats .= '<li><strong>'.get_totalcommentposters(false).'</strong> '.__('different nicknames were represented in the comments.', 'wp-stats').'</li>'."\n";
            $temp_stats .= '<li><strong>'.get_totallinks(false).'</strong> '.__('links were added.', 'wp-stats').'</li>'."\n";
            $temp_stats .= '<li><strong>'.wp_count_terms('category').'</strong> '.__('post categories were needed.', 'wp-stats').'</li>'."\n";
            $temp_stats .= '<li><strong>'.wp_count_terms('link_category').'</strong> '.__('link categories were needed.', 'wp-stats').'</li>'."\n";
            if(function_exists('akismet_spam_count')) {
                $temp_stats .= '<li><strong>'.number_format(get_option('akismet_spam_count')).'</strong> '.__('spam blocked.', 'wp-stats').'</li>'."\n";
            }
            // WP-Stats: General Stats Filter
            $temp_stats = apply_filters('wp_stats_page_general', $temp_stats);
            $temp_stats .= '</ul>'."\n";
        }

        // Plugin Stats
        $temp_stats .= '<h2 id="PluginsStats">'.__('Plugins Stats', 'wp-stats').'</h2>'."\n";
                
        // WP-Stats: Plugins Stats Filter
        $temp_stats = apply_filters('wp_stats_page_plugins', $temp_stats);

        // Top Recent Stats
        $temp_stats .= '<h2 id="TopRecentStats">'.sprintf(__('Top %s Recent Stats', 'wp-stats'), $stats_mostlimit).'</h2>'."\n";

        // Recent Posts
        if($stats_display['recent_posts'] == 1) {
            $temp_stats .= '<p><strong>'.$stats_mostlimit.' '.__('Recent Posts', 'wp-stats').'</strong></p>'."\n";
            $temp_stats .= '<ul>'."\n";
            $temp_stats .=