<?php

class All_in_One_SEO_Pack {

 	var $version = "1.6.8.2";

 	/** Max numbers of chars in auto-generated description */

 	var $maximum_description_length = 160;

 	/** Minimum number of chars an excerpt should be so that it can be used

 	 * as description. Touch only if you know what you're doing

 	 */

 	var $minimum_description_length = 1;

 	var $ob_start_detected = false;

 	var $title_start = -1;

 	var $title_end = -1;

 	/** The title before rewriting */

 	var $orig_title = '';

 	/** Temp filename for the latest version. */

// 	var $upgrade_filename = 'temp.zip';

 	/** Where to extract the downloaded newest version. */

// 	var $upgrade_folder;

 	/** Any error in upgrading. */

// 	var $upgrade_error;

 	/** Which zip to download in order to upgrade .*/

// 	var $upgrade_url = 'http://downloads.wordpress.org/plugin/all-in-one-seo-pack.zip';

 	/** Filename of log file. */

 	var $log_file;

 	/** Flag whether there should be logging. */

 	var $do_log;

 	var $wp_version;

	var $aioseop_op;

 	//var $aioseop_options = get_option('aioseop_options');

	function All_in_One_SEO_Pack() {

		global $wp_version;

		global $aioseop_options;

		$this->wp_version = $wp_version;

		$this->log_file = dirname(__FILE__) . '/all_in_one_seo_pack.log';

		if ($aioseop_options['aiosp_do_log']) {

			$this->do_log = true;

		} else {

			$this->do_log = false;

		}

//		$this->upgrade_filename = dirname(__FILE__) . '/' . $this->upgrade_filename;

//		$this->upgrade_folder = dirname(__FILE__);

	}

	/**      

	 * Convert a string to lower case

	 * Compatible with mb_strtolower(), an UTF-8 friendly replacement for strtolower()

	 */

	function strtolower($str) {

		global $UTF8_TABLES;

		return strtr($str, $UTF8_TABLES['strtolower']);

	}

	/**      

	 * Convert a string to upper case

	 * Compatible with mb_strtoupper(), an UTF-8 friendly replacement for strtoupper()

	 */

	function strtoupper($str) {

		global $UTF8_TABLES;

		return strtr($str, $UTF8_TABLES['strtoupper']);

	}	

	function template_redirect() {

		global $wp_query;

		global $aioseop_options;

		$post = $wp_query->get_queried_object();

		if( $this->aioseop_mrt_exclude_this_page()){

			return;

		}

		if (is_feed()) {

			return;

		}

		if (is_single() || is_page()) {

		    $aiosp_disable = htmlspecialchars(stripcslashes(get_post_meta($post->ID, '_aioseop_disable', true)));

		    if ($aiosp_disable) {

		    	return;

		    }

		}

		if ($aioseop_options['aiosp_rewrite_titles']) {

			ob_start(array($this, 'output_callback_for_title'));

		}

	}

	function aioseop_mrt_exclude_this_page(){

			global $aioseop_options;

			$currenturl = trim($_SERVER['REQUEST_URI'],'/');

	/*		echo "<br /><br />";

			echo $aioseop_options['aiosp_ex_pages'];

			echo "<br /><br />";

*/

			$excludedstuff = explode(',',$aioseop_options['aiosp_ex_pages']);

			foreach($excludedstuff as $exedd){

				//echo $exedd;

			    $exedd = trim($exedd);

			            if($exedd){

			                if(stristr($currenturl, $exedd)){

			                    return true;

				}

			}

		}

		return false;

	}

	function output_callback_for_title($content) {

		return $this->rewrite_title($content);

	}

//

//CHECK IF ARRAY EXISTS IN DB, IF SO, GET ARRAY, ADD EVERYTHING, CHECK FOR ISSET?

//

	function init() {

if (function_exists('load_plugin_textdomain')) {

	if ( !defined('WP_PLUGIN_DIR') ) {

		load_plugin_textdomain('all_in_one_seo_pack', str_replace( ABSPATH, '', dirname(__FILE__)));

	} else {

		load_plugin_textdomain('all_in_one_seo_pack', false, dirname(plugin_basename(__FILE__)));

	}

}

/*

		if (function_exists('load_plugin_textdomain')) {

			load_plugin_textdomain('all_in_one_seo_pack', WP_PLUGIN_DIR . '/all-in-one-seo-pack');

		}

*/

	}

	function is_static_front_page() {

		global $wp_query;

		global $aioseop_options;

		$post = $wp_query->get_queried_object();

		return get_option('show_on_front') == 'page' && is_page() && $post->ID == get_option('page_on_front');

	}

	function is_static_posts_page() {

		global $wp_query;

		$post = $wp_query->get_queried_object();

		return get_option('show_on_front') == 'page' && is_home() && $post->ID == get_option('page_for_posts');

	}

	function get_base() {

   		 return '/'.end(explode('/', str_replace(array('\\','/all_in_one_seo_pack.php'),array('/',''),__FILE__)));

	}

	function seo_mrt_admin_head() {

		$home = get_settings('siteurl');

		$stylesheet = WP_PLUGIN_URL . '/all-in-one-seo-pack/style.css';

		echo '<link rel="stylesheet" href="' . $stylesheet . '" type="text/css" media="screen" />';

	}

	function wp_head() {

		if (is_feed()) {

			return;

		}

		global $wp_query;

		global $aioseop_options;

		$post = $wp_query->get_queried_object();

		$meta_string = null;

		if($this->is_static_posts_page()){

					$title = strip_tags( apply_filters( 'single_post_title', $post->post_title ) );

				}

		//echo("wp_head() " . wp_title('', false) . " is_home() => " . is_home() . ", is_page() => " . is_page() . ", is_single() => " . is_single() . ", is_static_front_page() => " . $this->is_static_front_page() . ", is_static_posts_page() => " . $this->is_static_posts_page());

		if (is_single() || is_page()) {

		    $aiosp_disable = htmlspecialchars(stripcslashes(get_post_meta($post->ID, '_aioseop_disable', true)));

		    if ($aiosp_disable) {

		    	return;

		    }

		}

			if( $this->aioseop_mrt_exclude_this_page()==TRUE ){

				return;

			}

		if ($aioseop_options['aiosp_rewrite_titles']) {

			// make the title rewrite as short as possible

			if (function_exists('ob_list_handlers')) {

				$active_handlers = ob_list_handlers();

			} else {

				$active_handlers = array();

			}

			if (sizeof($active_handlers) > 0 &&

				strtolower($active_handlers[sizeof($active_handlers) - 1]) ==

				strtolower('All_in_One_SEO_Pack::output_callback_for_title')) {

				ob_end_flush();

			} else {

				$this->log("another plugin interfering?");

				// if we get here there *could* be trouble with another plugin :(

				$this->ob_start_detected = true;

				if (function_exists('ob_list_handlers')) {

					foreach (ob_list_handlers() as $handler) {

						$this->log("detected output handler $handler");

					}

				}

			}

		}

		/*

		echo trim($_SERVER['REQUEST_URI'],'/');

		$currenturl = trim($_SERVER['REQUEST_URI'],'/');

		echo "<br /><br />";

		echo $aioseop_options['aiosp_ex_pages'];

		echo "<br /><br />";

		$excludedstuff = explode(',',$aioseop_options['aiosp_ex_pages']);

		foreach($excludedstuff as $exedd){

			echo $exedd;

			//echo "<br /><br />substring: ". stristr($currenturl,trim($exedd)) . "<br />";

			if(stristr($currenturl, trim($exedd))){

				echo "<br />match, should not display<br /><br />";

			}else{

				echo "<br />( " . $exedd . " was not found in " . $currenturl . " ) - no match<br /><br />";

			}

		}

		//print_r($excludedstuff);

		*/

		echo "\n<!-- All in One SEO Pack $this->version by Michael Torbert of Semper Fi Web Design";

		if ($this->ob_start_detected) {

			echo "ob_start_detected ";

		}

		echo "[$this->title_start,$this->title_end] ";

		echo "-->\n";

		if ((is_home() && $aioseop_options['aiosp_home_keywords'] && !$this->is_static_posts_page()) || $this->is_static_front_page()) {

			$keywords = trim($this->internationalize($aioseop_options['aiosp_home_keywords']));

		} elseif($this->is_static_posts_page() && !$aioseop_options['aiosp_dynamic_postspage_keywords']){  // and if option = use page set keywords instead of keywords from recent posts

				//$keywords = "posts keyyysss" . stripcslashes(get_post_meta($post->ID,'keywords',true));

				$keywords = stripcslashes($this->internationalize(get_post_meta($post->ID, "_aioseop_keywords", true)));

//			$keywords =	$this->get_unique_keywords($keywords);

			}else {

				$keywords = $this->get_all_keywords();

			}

		if (is_single() || is_page() || $this->is_static_posts_page()) {

            if ($this->is_static_front_page()) {

				$description = trim(stripcslashes($this->internationalize($aioseop_options['aiosp_home_description'])));

            } else {

            	$description = $this->get_post_description($post);

				$description = apply_filters('aioseop_description',$description);

            }

		} else if (is_home()) {

			$description = trim(stripcslashes($this->internationalize($aioseop_options['aiosp_home_description'])));

		} else if (is_category()) {

			$description = $this->internationalize(category_description());

		}

		if (isset($description) && (strlen($description) > $this->minimum_description_length) && !(is_home() && is_paged())) {

			$description = trim(strip_tags($description));

			$description = str_replace('"', '', $description);

			// replace newlines on mac / windows?

			$description = str_replace("\r\n", ' ', $description);

			// maybe linux uses this alone

			$description = str_replace("\n", ' ', $description);

			if (isset($meta_string)) {

				//$meta_string .= "\n";

			} else {

				$meta_string = '';

			}

			// description format

            $description_format = $aioseop_options['aiosp_description_format'];

            if (!isset($description_format) || empty($description_format)) {

            	$description_format = "%description%";

            }

            $description = str_replace('%description%', $description, $description_format);

            $description = str_replace('%blog_title%', get_bloginfo('name'), $description);

            $description = str_replace('%blog_description%', get_bloginfo('description'), $description);

            $description = str_replace('%wp_title%', $this->get_original_title(), $description);

            //$description = html_entity_decode($description, ENT_COMPAT, get_bloginfo('charset')); 

            if($aioseop_options['aiosp_can'] && is_attachment()){

                    $url = $this->aiosp_mrt_get_url($wp_query);

                            if ($url) {

                            preg_match_all('/(\d+)/', $url, $matches);

                                    if (is_array($matches)){

                                            $uniqueDesc = join('',$matches[0]);

                                    }

                    }

            $description .= ' ' . $uniqueDesc;

            }

            $meta_string .= sprintf("<meta name=\"description\" content=\"%s\" />", $description);

		}

		$keywords = apply_filters('aioseop_keywords',$keywords);		

		if (isset ($keywords) && !empty($keywords) && !(is_home() && is_paged())) {

			if (isset($meta_string)) {

				$meta_string .= "\n";

			}

			$meta_string .= sprintf("<meta name=\"keywords\" content=\"%s\" />", $keywords);

		}

		if (function_exists('is_tag')) {

			$is_tag = is_tag();

		}

		if ((is_category() && $aioseop_options['aiosp_category_noindex']) ||

			(!is_category() && is_archive() &&!$is_tag && $aioseop_options['aiosp_archive_noindex']) ||

			($aioseop_options['aiosp_tags_noindex'] && $is_tag)) {

			if (isset($meta_string)) {

				$meta_string .= "\n";

			}

			$meta_string .= '<meta name="robots" content="noindex,follow" />';

		}

		$page_meta = stripcslashes($aioseop_options['aiosp_page_meta_tags']);

		$post_meta = stripcslashes($aioseop_options['aiosp_post_meta_tags']);

		$home_meta = stripcslashes($aioseop_options['aiosp_home_meta_tags']);

		if (is_page() && isset($page_meta) && !empty($page_meta) || $this->is_static_posts_page()) {

			if (isset($meta_string)) {

				$meta_string .= "\n";

			}

			echo "\n$page_meta";

		}

		if (is_single() && isset($post_meta) && !empty($post_meta)) {

			if (isset($meta_string)) {

				$meta_string .= "\n";

			}

			$meta_string .= "$post_meta";

		}

		if (is_home() && !empty($home_meta)) {

			if (isset($meta_string)) {

				$meta_string .= "\n";

			}

			$meta_string .= "$home_meta";

		}

		if ($meta_string != null) {

			echo "$meta_string\n";

		}

		if($aioseop_options['aiosp_can']){

			$url = $this->aiosp_mrt_get_url($wp_query);

				if ($url) {

					$url = apply_filters('aioseop_canonical_url',$url);

			echo "".'<link rel="canonical" href="'.$url.'" />'."\n";

			}

		}

		echo "<!-- /all in one seo pack -->\n";

	}

// Thank you, Yoast de Valk, for much of this code.	

	function aiosp_mrt_get_url($query) {

		global $aioseop_options;

		if ($query->is_404 || $query->is_search) {

			return false;

		}

		$haspost = count($query->posts) > 0;

	    $has_ut = function_exists('user_trailingslashit');

		if (get_query_var('m')) {

	        $m = preg_replace('/[^0-9]/', '', get_query_var('m'));

	        switch (strlen($m)) {

	            case 4: 

	                $link = get_year_link($m);

	                break;

	            case 6: 

	                $link = get_month_link(substr($m, 0, 4), substr($m, 4, 2));

	                break;

	            case 8: 

	                $link = get_day_link(substr($m, 0, 4), substr($m, 4, 2),

	                                     substr($m, 6, 2));

	                break;

	            default:

	                return false;

	        }

	    } elseif (($query->is_single || $query->is_page) && $haspost) {

	        $post = $query->posts[0];

	        $link = get_permalink($post->ID);

	        $link = $this->yoast_get_paged($link); 

/*	        if ($page && $page > 1) {

	            $link = trailingslashit($link) . "page/". "$page";

	            if ($has_ut) {

	                $link = user_trailingslashit($link, 'paged');