yoast-glotpress-seo.php

<?php

class Yoast_GlotPress_SEO {
	
	function __construct() {
		add_filter( 'gp_title', array( $this, 'modify_title' ) );
		add_action( 'gp_head', array( $this, 'meta_desc' ), 9 );
		add_filter( 'gp_redirect_status', array( $this, 'modify_redirect_status' ), 10, 2 );
	}
	
	private function get_path() {
		$url = gp_url_current();
		$path = gp_url_path( $url );
		return $path;
	}

	public function modify_title( $title ) {
		if ( '/projects' == $this->get_path() ) {
			return 'Translate Yoast Plugins to your language! • Yoast';
		}
	
		$title = preg_replace( '/&lt; GlotPress$/', '• Yoast Translate', $title );
		return $title;
	}

	public function meta_desc() {
		$path 	 = $this->get_path();
		$project = GP::$project->by_path( str_replace( '/projects/', '', $path ) );

		$metadesc = '';
	
		switch( $path ) {
			case '/projects':
				$metadesc = 'This the home of the Yoast Translate project, where all Yoast WordPress Plugins and Themes are being translated. Join today!';
				break;
			default:
				if ( isset( $project ) && $project ) {
					$metadesc = strip_tags( $project->description );
					$metadesc = explode( "\n", $metadesc );
					$metadesc = $metadesc[0];
				}
				break;
		}
		if ( $metadesc != '' ) {
			echo '<meta name="description" content="'. esc_attr( $metadesc ) . '"/>'."\n\n";
		}
	}
	
	public function modify_redirect_status( $status, $location ) {
		if ( 302 == $status && '/projects' == $location ) {
			return 301;
		}

		return $status;
	}
	
}

$yoast_glotpress_seo = new Yoast_GlotPress_SEO();