<?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 ( in_array( $hook_suffix, array( 

		'index.php', # dashboard

		'edit-comments.php',

		'comment.php',

		'post.php',

		'plugins_page_akismet-key-config', 

		'jetpack_page_akismet-key-config',

	) ) ) {

		wp_register_style( 'akismet.css', AKISMET_PLUGIN_URL . 'akismet.css', array(), '2.5.9' );

		wp_enqueue_style( 'akismet.css');

		wp_register_script( 'akismet.js', AKISMET_PLUGIN_URL . 'akismet.js', array('jquery'), '2.5.9' );

		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, $current_user;

	$new_key_link    = 'https://akismet.com/get/';

	$config_link     = esc_url( add_query_arg( array( 'page' => 'akismet-key-config', 'show' => 'enter-api-key' ), class_exists( 'Jetpack' ) ? admin_url( 'admin.php' ) : admin_url( 'plugins.php' ) ) );

	$stats_link      = esc_url( add_query_arg( array( 'page' => 'akismet-stats-display' ), class_exists( 'Jetpack' ) ? admin_url( 'admin.php' ) : admin_url( 'index.php' ) ) );

	$api_key         = akismet_get_key();

	$show_key_form   = $api_key;

	$key_status      = 'empty';

	$saved_ok        = false;

	$key_status_text = '';

	$ms = array();

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

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

			die(__('Cheatin’ uh?'));

		$show_key_form = true;

		check_admin_referer( $akismet_nonce );

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

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

		if ( empty( $home_url['host'] ) )

			$ms[] = 'bad_home_url';

		if ( empty( $key ) ) {

			if ( $api_key ) {

				delete_option('wordpress_api_key');

				$saved_ok = true;			

				$ms[] = 'new_key_empty';

			}

			else

				$ms[] = 'key_empty';

		}  

		else

			$key_status = akismet_verify_key( $key );		

		if ( $key != $api_key && $key_status == 'valid' ) {

			$ms[] = 'new_key_valid';

			update_option('wordpress_api_key', $key);

		}

		elseif ( $key_status == 'invalid' )

			$ms[] = 'new_key_invalid';

		elseif ( $key_status == 'failed' )

			$ms[] = 'new_key_failed';

		$api_key = $key_status == 'valid' ? $key : false;

		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' );

		if ( empty( $ms ) )

			$saved_ok = true;

	} 

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

		$show_key_form = true;

		check_admin_referer( $akismet_nonce );

		akismet_get_server_connectivity(0);

	}

	elseif ( isset( $_GET['show'] ) && $_GET['show'] == 'enter-api-key' ) {

		$show_key_form = true;

	}

	if ( $show_key_form ) {

		//check current key status

		//only get this if showing the key form otherwise takes longer for page to load for new user

		//no need to get it if we already know it and its valid

		if ( in_array( $key_status, array( 'invalid', 'failed', 'empty' ) ) ) {

			$key = get_option('wordpress_api_key');

			if ( empty( $key ) ) {

				//no key saved yet - maybe connection to Akismet down?

				if ( in_array( $key_status, array( 'invalid', 'empty' ) ) ) {

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

						$ms[] = 'no_connection';

				}

			} 

			else

				$key_status = akismet_verify_key( $key );			

		}

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

			if ( $key_status == 'invalid' )

				$ms[] = 'key_invalid';

			elseif ( !empty( $key ) && $key_status == 'failed' )

				$ms[] = 'key_failed';

		}

	}	

	$key_status_strings = array( 

	 	'empty'   => __( 'Empty' ), 

		'valid'   => __( 'Valid' ), 

		'invalid' => __( 'Invalid' ), 

		'failed'  => __( 'Failed' ), 

 	);

	$messages = array(

		'new_key_empty'   => array( 'class' => 'updated fade', 'text' => __('Your key has been cleared.' ) ),

		'new_key_valid'   => array( 'class' => 'updated fade', 'text' => __('Your Akismet account has been successfully set up and activated. Happy blogging!' ) ),

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

		'new_key_failed'  => array( 'class' => 'error',        '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( 'class' => 'error',        'text' => __('There was a problem connecting to the Akismet server. Please check your server configuration.' ) ),

		'key_empty'       => array( 'class' => 'updated fade', 'text' => __('Please enter an API key' ) ),

		'key_invalid'     => array( 'class' => 'error',        'text' => __('This key is invalid.' ) ),

		'key_failed'      => array( 'class' => 'error',        '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( 'class' => 'error',        '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') ) )

	);

?>

<div class="wrap">

	<?php if ( !$api_key ) : ?>

	<h2 class="ak-header"><?php _e('Akismet'); ?></h2>

	<?php else: ?>

	<h2 class="ak-header"><?php printf( __( 'Akismet <a href="%s" class="add-new-h2">Stats</a>' ), $stats_link ); ?></h2>

	<?php endif; ?>

	<div class="no-key <?php echo $show_key_form ? 'hidden' : '';?>">

		<p><?php _e('Akismet eliminates the comment and trackback spam you get on your site. To use Akismet you may need to sign up for an API key. Click the button below to get started.'); ?></p>

		<form name="akismet_activate" action="https://akismet.com/get/" method="POST"> 

			<input type="hidden" name="return" value="1"/> 

			<input type="hidden" name="jetpack" value="<?php echo (string) class_exists( 'Jetpack' );?>"/>

			<input type="hidden" name="user" value="<?php echo esc_attr( $current_user->user_login );?>"/>

			<input type="submit" class="button button-primary" value="<?php esc_attr_e( 'Create a new Akismet Key' ); ?>"/>

		</form>

		<br/>

		<a href="<?php echo $config_link;?>"><?php _e('I already have a key'); ?></a>

	</div>

	<div class="have-key <?php echo $show_key_form ? '' : 'hidden';?>">

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

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

		<?php endif; ?>

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

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

		<?php endif; ?>

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

		<div class="<?php echo $messages[$m]['class']; ?>"><p><strong><?php echo $messages[$m]['text']; ?></strong></p></div>

		<?php endforeach; ?>		

		<form action="" method="post" id="akismet-conf">

			<table class="form-table">

				<tbody>

					<tr>

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

						<td>

							<input id="key" name="key" type="text" size="15" maxlength="12" value="<?php echo esc_attr( get_option('wordpress_api_key') ); ?>" class="regular-text code <?php echo $key_status;?>"><div class="under-input key-status <?php echo $key_status;?>"><?php echo isset( $key_status_strings[ $key_status ] ) ? $key_status_strings[ $key_status ] : '';?></div>

							<p class="need-key description"><?php printf( __('You must enter a valid Akismet API key here. If you need an API key, you can <a href="%s">create one here</a>'), '#' );?></p>

						</td>

					</tr>

					<?php if ( $api_key ):?>

					<tr valign="top">

						<th scope="row"><?php _e('Settings');?></th>

						<td>

							<fieldset><legend class="screen-reader-text"><span><?php _e('Settings');?></span></legend>

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

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

							</fieldset>

						</td>

					</tr>

					<?php endif; ?>

				</tbody>

			</table>

			<?php akismet_nonce_field($akismet_nonce) ?>

			<p class="submit">

				<input type="submit" name="submit" id="submit" class="button button-primary" value="<?php _e('Save Changes');?>">

			</p>

		</form>	

		<?php if ( $api_key ) : ?>

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

		<form action="" method="post" id="akismet-connectivity">

			<table class="form-table">

				<tbody>

					<tr>

						<th><label for="key"><?php _e('Server Status');?></label></th>

						<td>

						<?php if ( !function_exists('fsockopen') || !function_exists('gethostbynamel') ) : ?>

							<p class="key-status failed"><?php _e('Network functions are disabled.'); ?></p>

							<p class="description"><?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 ) { 

										if ( $fail_count > 0 && $fail_count < count( $servers ) ) { // some connections work, some fail ?>

							<p class="key-status some"><?php _e('Unable to reach some Akismet servers.'); ?></p>

							<p class="description"><?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 } elseif ( $fail_count > 0 ) { // all connections fail ?>

							<p class="key-status failed"><?php _e('Unable to reach any Akismet servers.'); ?></p>

							<p class="description"><?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 } else { // all connections work ?>

							<p class="key-status valid"><?php  _e('All Akismet servers are available.'); ?></p>

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

									<?php }

									} else { //can't connect to any server ?>

							<p class="key-status failed"><?php _e('Unable to find Akismet servers.'); ?></p>

							<p class="description"><?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 }

							endif; ?>							

						</td>

					</tr>

					<?php if ( !empty( $servers ) ) : ?>

					<tr valign="top">

						<th scope="row"><?php _e('Network Status');?></th>

						<td>

							<table class="network-status">

								<thead>

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

								</thead>

								<tbody>

								<?php

										asort($servers);

										foreach ( $servers as $ip => $status ) : ?>

										<tr>

											<td align="center"><?php echo esc_html( $ip ); ?></td>

											<td class="key-status <?php echo $status ? 'valid' : 'failed'; ?>"><?php echo $status ? __('Accessible') : __('Re-trying'); ?></td>

										</tr>										

									<?php endforeach; ?>

								</tbody>

							</table>

							<br/>

							<input type="submit" name="check" id="submit" class="button" style="margin-left: 13.3em;" value="<?php _e('Check Network Status');?>">

						</td>

					</tr>

					<?php endif; ?>

					<tr valign="top">

						<th scope="row"><?php _e('Last Checked');?></th>

						<td>

							<p><strong><?php echo get_option('akismet_connectivity_time') ? sprintf( __('%s Ago'), ucwords( human_time_diff( get_option('akismet_connectivity_time') ) ) ) : __( 'Not yet' ); ?></strong></p>

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

						</td>

				</tbody>

			</table>

			<?php akismet_nonce_field($akismet_nonce) ?>

		</form>

		<?php endif;?>

	</div>

</div>

<?php

}

function akismet_stats_display() {

	global $akismet_api_host, $akismet_api_port;

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

	$api_key     = akismet_get_key();

	$config_link = esc_url( add_query_arg( array( 'page' => 'akismet-key-config' ), class_exists( 'Jetpack' ) ? admin_url( 'admin.php' ) : admin_url( 'plugins.php' ) ) );?>

<div class="wrap"><?php	

	if ( !$api_key ) :?>

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

	else :?>

	<iframe src="<?php echo esc_url( sprintf( '%s://akismet.com/web/1.0/user-stats.php?blog=%s&api_key=%s', is_ssl()?'https':'http', $blog, $api_key ) ); ?>" width="100%" height="2500px" frameborder="0" id="akismet-stats-frame"></iframe><?php

	endif;?>

</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' )

				);