<?php

add_action( 'admin_menu', 'akismet_admin_menu' );

akismet_admin_warnings();

function akismet_admin_init() {

    global $wp_version;

    // all admin functions are disabled in old versions

    if ( !function_exists('is_multisite') && version_compare( $wp_version, '3.0', '<' ) ) {

        function akismet_version_warning() {

            echo "

            <div id='akismet-warning' class='updated fade'><p><strong>".sprintf(__('Akismet %s requires WordPress 3.0 or higher.'), AKISMET_VERSION) ."</strong> ".sprintf(__('Please <a href="%s">upgrade WordPress</a> to a current version, or <a href="%s">downgrade to version 2.4 of the Akismet plugin</a>.'), 'http://codex.wordpress.org/Upgrading_WordPress', 'http://wordpress.org/extend/plugins/akismet/download/'). "</p></div>

            ";

        }

        add_action('admin_notices', 'akismet_version_warning'); 

        return; 

    }

    if ( function_exists( 'get_plugin_page_hook' ) )

        $hook = get_plugin_page_hook( 'akismet-stats-display', 'index.php' );

    else

        $hook = 'dashboard_page_akismet-stats-display';

    add_meta_box('akismet-status', __('Comment History'), 'akismet_comment_status_meta_box', 'comment', 'normal');

}

add_action('admin_init', 'akismet_admin_init');

add_action( 'admin_enqueue_scripts', 'akismet_load_js_and_css' );

function akismet_load_js_and_css() {

	global $hook_suffix;

	if (

		$hook_suffix == 'index.php'	# dashboard

		|| $hook_suffix == 'edit-comments.php' 

		|| $hook_suffix == 'comment.php' 

		|| $hook_suffix == 'post.php' 

		|| $hook_suffix == 'plugins_page_akismet-key-config'

	) {

		wp_register_style( 'akismet.css', AKISMET_PLUGIN_URL . 'akismet.css', array(), '2.5.4.4' );

		wp_enqueue_style( 'akismet.css');

		wp_register_script( 'akismet.js', AKISMET_PLUGIN_URL . 'akismet.js', array('jquery'), '2.5.4.6' );

		wp_enqueue_script( 'akismet.js' );

		wp_localize_script( 'akismet.js', 'WPAkismet', array(

			'comment_author_url_nonce' => wp_create_nonce( 'comment_author_url_nonce' )

		) );

	}

}

function akismet_nonce_field($action = -1) { return wp_nonce_field($action); }

$akismet_nonce = 'akismet-update-key';

function akismet_plugin_action_links( $links, $file ) {

	if ( $file == plugin_basename( dirname(__FILE__).'/akismet.php' ) ) {

		$links[] = '<a href="' . admin_url( 'admin.php?page=akismet-key-config' ) . '">'.__( 'Settings' ).'</a>';

	}

	return $links;

}

add_filter( 'plugin_action_links', 'akismet_plugin_action_links', 10, 2 );

function akismet_conf() {

	global $akismet_nonce, $wpcom_api_key;

	if ( isset($_POST['submit']) ) {

		if ( function_exists('current_user_can') && !current_user_can('manage_options') )

			die(__('Cheatin’ uh?'));

		check_admin_referer( $akismet_nonce );

		$key = preg_replace( '/[^a-h0-9]/i', '', $_POST['key'] );

		$home_url = parse_url( get_bloginfo('url') );

		if ( empty($key) ) {

			$key_status = 'empty';

			$ms[] = 'new_key_empty';

			delete_option('wordpress_api_key');

		} elseif ( empty($home_url['host']) ) {

			$key_status = 'empty';

			$ms[] = 'bad_home_url';

		} else {

			$key_status = akismet_verify_key( $key );

		}

		if ( $key_status == 'valid' ) {

			update_option('wordpress_api_key', $key);

			$ms[] = 'new_key_valid';

		} else if ( $key_status == 'invalid' ) {

			$ms[] = 'new_key_invalid';

		} else if ( $key_status == 'failed' ) {

			$ms[] = 'new_key_failed';

		}

		if ( isset( $_POST['akismet_discard_month'] ) )

			update_option( 'akismet_discard_month', 'true' );

		else

			update_option( 'akismet_discard_month', 'false' );

		if ( isset( $_POST['akismet_show_user_comments_approved'] ) )

			update_option( 'akismet_show_user_comments_approved', 'true' );

		else

			update_option( 'akismet_show_user_comments_approved', 'false' );

	} elseif ( isset($_POST['check']) ) {

		akismet_get_server_connectivity(0);

	}

	if ( empty( $key_status) ||  $key_status != 'valid' ) {

		$key = get_option('wordpress_api_key');

		if ( empty( $key ) ) {

			if ( empty( $key_status ) || $key_status != 'failed' ) {

				if ( akismet_verify_key( '1234567890ab' ) == 'failed' )

					$ms[] = 'no_connection';

				else

					$ms[] = 'key_empty';

			}

			$key_status = 'empty';

		} else {

			$key_status = akismet_verify_key( $key );

		}

		if ( $key_status == 'valid' ) {

			$ms[] = 'key_valid';

		} else if ( $key_status == 'invalid' ) {

			$ms[] = 'key_invalid';

		} else if ( !empty($key) && $key_status == 'failed' ) {

			$ms[] = 'key_failed';

		}

	}

	$messages = array(

		'new_key_empty' => array('color' => 'aa0', 'text' => __('Your key has been cleared.')),

		'new_key_valid' => array('color' => '4AB915', 'text' => __('Your key has been verified. Happy blogging!')),

		'new_key_invalid' => array('color' => '888', 'text' => __('The key you entered is invalid. Please double-check it.')),

		'new_key_failed' => array('color' => '888', 'text' => __('The key you entered could not be verified because a connection to akismet.com could not be established. Please check your server configuration.')),

		'no_connection' => array('color' => '888', 'text' => __('There was a problem connecting to the Akismet server. Please check your server configuration.')),

		'key_empty' => array('color' => 'aa0', 'text' => sprintf(__('Please enter an API key. (<a href="%s" style="color:#fff">Get your key.</a>)'), 'http://akismet.com/get/?return=true')),

		'key_valid' => array('color' => '4AB915', 'text' => __('This key is valid.')),

		'key_invalid' => array('color' => '888', 'text' => __('This key is invalid.')),

		'key_failed' => array('color' => 'aa0', 'text' => __('The key below was previously validated but a connection to akismet.com can not be established at this time. Please check your server configuration.')),

		'bad_home_url' => array('color' => '888', 'text' => sprintf( __('Your WordPress home URL %s is invalid.  Please fix the <a href="%s">home option</a>.'), esc_html( get_bloginfo('url') ), admin_url('options.php#home') ) ),

	);

?>

<?php if ( !empty($_POST['submit'] ) ) : ?>

<div id="message" class="updated fade"><p><strong><?php _e('Options saved.') ?></strong></p></div>

<?php endif; ?>

<div class="wrap">

<h2><?php _e('Akismet Configuration'); ?></h2>

<?php if (isset($_GET['message']) && $_GET['message'] == 'success') { ?>

	<div class="updated below-h2" id="message"><p><?php _e( '<strong>Sign up success!</strong> Please check your email for your Akismet API Key and enter it below.' ); ?></p></div>

<?php } ?>

<div class="narrow">

<form action="" method="post" id="akismet-conf" style="margin: auto; width: 400px; ">

<?php if ( !$wpcom_api_key ) { ?>

	<p><?php printf(__('For many people, <a href="%1$s">Akismet</a> will greatly reduce or even completely eliminate the comment and trackback spam you get on your site. If one does happen to get through, simply mark it as "spam" on the moderation screen and Akismet will learn from the mistakes. If you don\'t have an API key yet, you can get one at <a href="%2$s">Akismet.com</a>.'), 'http://akismet.com/?return=true', 'http://akismet.com/get/?return=true'); ?></p>

<h3><label for="key"><?php _e('Akismet API Key'); ?></label></h3>

<?php foreach ( $ms as $m ) : ?>

	<p style="padding: .5em; background-color: #<?php echo $messages[$m]['color']; ?>; color: #fff; font-weight: bold;"><?php echo $messages[$m]['text']; ?></p>

<?php endforeach; ?>

<p><input id="key" name="key" type="text" size="15" maxlength="12" value="<?php echo get_option('wordpress_api_key'); ?>" style="font-family: 'Courier New', Courier, mono; font-size: 1.5em;" /> (<?php _e('<a href="http://akismet.com/get/?return=true">What is this?</a>'); ?>)</p>

<?php if ( isset( $invalid_key) && $invalid_key ) { ?>

<h3><?php _e('Why might my key be invalid?'); ?></h3>

<p><?php _e('This can mean one of two things, either you copied the key wrong or that the plugin is unable to reach the Akismet servers, which is most often caused by an issue with your web host around firewalls or similar.'); ?></p>

<?php } ?>

<?php } ?>

<?php akismet_nonce_field($akismet_nonce) ?>

<p><label><input name="akismet_discard_month" id="akismet_discard_month" value="true" type="checkbox" <?php if ( get_option('akismet_discard_month') == 'true' ) echo ' checked="checked" '; ?> /> <?php _e('Auto-delete spam submitted on posts more than a month old.'); ?></label></p>

<p><label><input name="akismet_show_user_comments_approved" id="akismet_show_user_comments_approved" value="true" type="checkbox" <?php if ( get_option('akismet_show_user_comments_approved') == 'true' ) echo ' checked="checked" '; ?> /> <?php _e('Show the number of comments you\'ve approved beside each comment author.'); ?></label></p>

	<p class="submit"><input type="submit" name="submit" value="<?php _e('Update options &raquo;'); ?>" /></p>

</form>

<form action="" method="post" id="akismet-connectivity" style="margin: auto; width: 400px; ">

<h3><?php _e('Server Connectivity'); ?></h3>

<?php

	if ( !function_exists('fsockopen') || !function_exists('gethostbynamel') ) {

		?>

			<p style="padding: .5em; background-color: #888; color: #fff; font-weight:bold;"><?php _e('Network functions are disabled.'); ?></p>

			<p><?php echo sprintf( __('Your web host or server administrator has disabled PHP\'s <code>fsockopen</code> or <code>gethostbynamel</code> functions.  <strong>Akismet cannot work correctly until this is fixed.</strong>  Please contact your web host or firewall administrator and give them <a href="%s" target="_blank">this information about Akismet\'s system requirements</a>.'), 'http://blog.akismet.com/akismet-hosting-faq/'); ?></p>

		<?php

	} else {

		$servers = akismet_get_server_connectivity();

		$fail_count = count($servers) - count( array_filter($servers) );

		if ( is_array($servers) && count($servers) > 0 ) {

			// some connections work, some fail

			if ( $fail_count > 0 && $fail_count < count($servers) ) { ?>

				<p style="padding: .5em; background-color: #aa0; color: #fff; font-weight:bold;"><?php _e('Unable to reach some Akismet servers.'); ?></p>

				<p><?php echo sprintf( __('A network problem or firewall is blocking some connections from your web server to Akismet.com.  Akismet is working but this may cause problems during times of network congestion.  Please contact your web host or firewall administrator and give them <a href="%s" target="_blank">this information about Akismet and firewalls</a>.'), 'http://blog.akismet.com/akismet-hosting-faq/'); ?></p>

			<?php

			// all connections fail

			} elseif ( $fail_count > 0 ) { ?>

				<p style="padding: .5em; background-color: #888; color: #fff; font-weight:bold;"><?php _e('Unable to reach any Akismet servers.'); ?></p>

				<p><?php echo sprintf( __('A network problem or firewall is blocking all connections from your web server to Akismet.com.  <strong>Akismet cannot work correctly until this is fixed.</strong>  Please contact your web host or firewall administrator and give them <a href="%s" target="_blank">this information about Akismet and firewalls</a>.'), 'http://blog.akismet.com/akismet-hosting-faq/'); ?></p>

			<?php

			// all connections work

			} else { ?>

				<p style="padding: .5em; background-color: #4AB915; color: #fff; font-weight:bold;"><?php  _e('All Akismet servers are available.'); ?></p>

				<p><?php _e('Akismet is working correctly.  All servers are accessible.'); ?></p>

			<?php

			}

		} else {

			?>

				<p style="padding: .5em; background-color: #888; color: #fff; font-weight:bold;"><?php _e('Unable to find Akismet servers.'); ?></p>

				<p><?php echo sprintf( __('A DNS problem or firewall is preventing all access from your web server to Akismet.com.  <strong>Akismet cannot work correctly until this is fixed.</strong>  Please contact your web host or firewall administrator and give them <a href="%s" target="_blank">this information about Akismet and firewalls</a>.'), 'http://blog.akismet.com/akismet-hosting-faq/'); ?></p>

			<?php

		}

	}

	if ( !empty($servers) ) {

?>

<table style="width: 100%;">

<thead><th><?php _e('Akismet server'); ?></th><th><?php _e('Network Status'); ?></th></thead>

<tbody>

<?php

		asort($servers);

		foreach ( $servers as $ip => $status ) {

			$color = ( $status ? '#4AB915' : '#888');

	?>

		<tr>

		<td><?php echo htmlspecialchars($ip); ?></td>

		<td style="padding: 0 .5em; font-weight:bold; color: #fff; background-color: <?php echo $color; ?>"><?php echo ($status ? __('Accessible') : __('Re-trying') ); ?></td>

	<?php

		}

	}

?>

</tbody>

</table>

	<p><?php if ( get_option('akismet_connectivity_time') ) echo sprintf( __('Last checked %s ago.'), human_time_diff( get_option('akismet_connectivity_time') ) ); ?></p>

	<p class="submit"><input type="submit" name="check" value="<?php _e('Check network status &raquo;'); ?>" /></p>

	<p><?php printf( __('<a href="%s" target="_blank">Click here</a> to confirm that <a href="%s" target="_blank">Akismet.com is up</a>.'), 'http://status.automattic.com/9931/136079/Akismet-API', 'http://status.automattic.com/9931/136079/Akismet-API' ); ?></p>

</form>

</div>

</div>

<?php

}

function akismet_stats_display() {

	global $akismet_api_host, $akismet_api_port, $wpcom_api_key;

	$blog = urlencode( get_bloginfo('url') );

	$url = 'http://';

	if ( is_ssl() )

		$url = 'https://';

	$url .= 'akismet.com/web/1.0/user-stats.php';

	$url .= "?blog={$blog}&api_key=" . akismet_get_key();

	?>

	<div class="wrap">

	<iframe src="<?php echo $url; ?>" width="100%" height="2500px" frameborder="0" id="akismet-stats-frame"></iframe>

	</div>

	<?php

}

function akismet_stats() {

	if ( !function_exists('did_action') || did_action( 'rightnow_end' ) ) // We already displayed this info in the "Right Now" section

		return;

	if ( !$count = get_option('akismet_spam_count') )

		return;

	$path = plugin_basename(__FILE__);

	echo '<h3>' . _x( 'Spam', 'comments' ) . '</h3>';

	global $submenu;

	if ( isset( $submenu['edit-comments.php'] ) )

		$link = 'edit-comments.php';

	else

		$link = 'edit.php';

	echo '<p>'.sprintf( _n( '<a href="%1$s">Akismet</a> has protected your site from <a href="%2$s">%3$s spam comments</a>.', '<a href="%1$s">Akismet</a> has protected your site from <a href="%2$s">%3$s spam comments</a>.', $count ), 'http://akismet.com/?return=true', clean_url("$link?page=akismet-admin"), number_format_i18n($count) ).'</p>';

}

add_action('activity_box_end', 'akismet_stats');

function akismet_admin_warnings() {

	global $wpcom_api_key, $pagenow;

	if (

		$pagenow == 'edit-comments.php'

		|| ( !empty( $_GET['page'] ) && $_GET['page'] == 'akismet-key-config' )

		|| ( !empty( $_GET['page'] ) && $_GET['page'] == 'akismet-stats-display' )

	) {

		if ( get_option( 'akismet_alert_code' ) ) {

			function akismet_alert() {

				$alert = array(

					'code' => (int) get_option( 'akismet_alert_code' ),

					'msg' => get_option( 'akismet_alert_msg' )

				);

			?>

				<div class='error'>

					<p><strong>Akismet Error Code: <?php echo $alert['code']; ?></strong></p>

					<p><?php esc_html_e( $alert['msg'] ); ?></p>

					<p>More information is available at <a href="https://akismet.com/errors/<?php echo $alert['code']; ?>">https://akismet.com/errors/<?php echo $alert['code']; ?></a></p>

				</div>

			<?php

			}

			add_action( 'admin_notices', 'akismet_alert' );

		}

	}

	if ( !get_option('wordpress_api_key') && !$wpcom_api_key && !isset($_POST['submit']) ) {

		function akismet_warning() {

			echo "

			<div id='akismet-warning' class='updated fade'><p><strong>".__('Akismet is almost ready.')."</strong> ".sprintf(__('You must <a href="%1$s">enter your Akismet API key</a> for it to work.'), "admin.php?page=akismet-key-config")."</p></div>

			";

		}

		add_action('admin_notices', 'akismet_warning');

		return;

	} elseif ( ( empty($_SERVER['SCRIPT_FILENAME']) || basename($_SERVER['SCRIPT_FILENAME']) == 'edit-comments.php' ) &&  wp_next_scheduled('akismet_schedule_cron_recheck') ) {

		function akismet_warning() {

			global $wpdb;

				akismet_fix_scheduled_recheck();

				$waiting = $wpdb->get_var( "SELECT COUNT(*) FROM $wpdb->commentmeta WHERE meta_key = 'akismet_error'" );

				$next_check = wp_next_scheduled('akismet_schedule_cron_recheck');

				if ( $waiting > 0 && $next_check > time() )

					echo "

			<div id='akismet-warning' class='updated fade'><p><strong>".__('Akismet has detected a problem.')."</strong> ".sprintf(__('Some comments have not yet been checked for spam by Akismet. They have been temporarily held for moderation. Please check your <a href="%s">Akismet configuration</a> and contact your web host if problems persist.'), 'admin.php?page=akismet-key-config')."</p></div>

			";

		}

		add_action('admin_notices', 'akismet_warning');

		return;

	}

}

// FIXME placeholder

function akismet_comment_row_action( $a, $comment ) {

	// failsafe for old WP versions

	if ( !function_exists('add_comment_meta') )

		return $a;

	$akismet_result = get_comment_meta( $comment->comment_ID, 'akismet_result', true );

	$akismet_error = get_comment_meta( $comment->comment_ID, 'akismet_error', true );

	$user_result = get_comment_meta( $comment->comment_ID, 'akismet_user_result', true);

	$comment_status = wp_get_comment_status( $comment->comment_ID );

	$desc = null;

	if ( $akismet_error ) {

		$desc = __( 'Awaiting spam check' );

	} elseif ( !$user_result || $user_result == $akismet_result ) {

		// Show the original Akismet result if the user hasn't overridden it, or if their decision was the same

		if ( $akismet_result == 'true' && $comment_status != 'spam' && $comment_status != 'trash' )

			$desc = __( 'Flagged as spam by Akismet' );

		elseif ( $akismet_result == 'false' && $comment_status == 'spam' )

			$desc = __( 'Cleared by Akismet' );

	} else {

		$who = get_comment_meta( $comment->comment_ID, 'akismet_user', true );

		if ( $user_result == 'true' )

			$desc = sprintf( __('Flagged as spam by %s'), $who );

		else

			$desc = sprintf( __('Un-spammed by %s'), $who );

	}

	// add a History item to the hover links, just after Edit

	if ( $akismet_result ) {

		$b = array();

		foreach ( $a as $k => $item ) {

			$b[ $k ] = $item;

			if (

				$k == 'edit'

				|| ( $k == 'unspam' && $GLOBALS['wp_version'] >= 3.4 )

			) {

				$b['history'] = '<a href="comment.php?action=editcomment&amp;c='.$comment->comment_ID.'#akismet-status" title="'. esc_attr__( 'View comment history' ) . '"> '. __('History') . '</a>';

			}

		}

		$a = $b;

	}

	if ( $desc )

		echo '<span class="akismet-status" commentid="'.$comment->comment_ID.'"><a href="comment.php?action=editcomment&amp;c='.$comment->comment_ID.'#akismet-status" title="' . esc_attr__( 'View comment history' ) . '">'.htmlspecialchars($desc).'</a></span>';