Example #1
0
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', '', $_POST['key']);
        if (empty($key)) {
            $key_status = 'empty';
            $ms[] = 'new_key_empty';
            delete_option('wordpress_api_key');
        } 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');
        }
    } 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') {
                delete_option('wordpress_api_key');
                $ms[] = 'key_empty';
            } else {
                if (!empty($key) && $key_status == 'failed') {
                    $ms[] = 'key_failed';
                }
            }
        }
    }
    $messages = array('new_key_empty' => array('color' => 'aa0', 'text' => __('Your key has been cleared.')), 'new_key_valid' => array('color' => '2d2', 'text' => __('Your key has been verified. Happy blogging!')), 'new_key_invalid' => array('color' => 'd22', 'text' => __('The key you entered is invalid. Please double-check it.')), 'new_key_failed' => array('color' => 'd22', 'text' => __('The key you entered could not be verified because a connection to akismet.com could not be established. Please check your server configuration.')), 'no_connection' => array('color' => 'd22', 'text' => __('There was a problem connecting to the Akismet server. Please check your server configuration.')), 'key_empty' => array('color' => 'aa0', 'text' => sprintf(__('Please enter an API key. (<a href="%s" style="color:#fff">Get your key.</a>)'), 'http://akismet.com/get/')), 'key_valid' => array('color' => '2d2', 'text' => __('This key is valid.')), 'key_failed' => array('color' => 'aa0', 'text' => __('The key below was previously validated but a connection to akismet.com can not be established at this time. Please check your server configuration.')));
    if (!empty($_POST['submit'])) {
        ?>
<div id="message" class="updated fade"><p><strong><?php 
        _e('Options saved.');
        ?>
</strong></p></div>
<?php 
    }
    ?>
<div class="wrap">
<h2><?php 
    _e('Akismet Configuration');
    ?>
</h2>
<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/', 'http://akismet.com/get/');
        ?>
</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 
        }
        ?>
<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/">What is this?</a>');
        ?>
)</p>
<?php 
        if (isset($invalid_key) && $invalid_key) {
            ?>
<h3><?php 
            _e('Why might my key be invalid?');
            ?>
</h3>
<p><?php 
            _e('This can mean one of two things, either you copied the key wrong or that the plugin is unable to reach the Akismet servers, which is most often caused by an issue with your web host around firewalls or similar.');
            ?>
</p>
<?php 
        }
    }
    akismet_nonce_field($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('Automatically discard spam comments on posts older than a month.');
    ?>
</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: #d22; 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 ($fail_count > 0) {
                ?>
				<p style="padding: .5em; background-color: #d22; color: #fff; font-weight:bold;"><?php 
                _e('Unable to reach any Akismet servers.');
                ?>
</p>
				<p><?php 
                echo sprintf(__('A network problem or firewall is blocking all connections from your web server to Akismet.com.  <strong>Akismet cannot work correctly until this is fixed.</strong>  Please contact your web host or firewall administrator and give them <a href="%s" target="_blank">this information about Akismet and firewalls</a>.'), 'http://blog.akismet.com/akismet-hosting-faq/');
                ?>
</p>
			<?php 
                // all connections work
            } else {
                ?>
				<p style="padding: .5em; background-color: #2d2; color: #fff; font-weight:bold;"><?php 
                _e('All Akismet servers are available.');
                ?>
</p>
				<p><?php 
                _e('Akismet is working correctly.  All servers are accessible.');
                ?>
</p>
			<?php 
            }
        } else {
            ?>
				<p style="padding: .5em; background-color: #d22; color: #fff; font-weight:bold;"><?php 
            _e('Unable to find Akismet servers.');
            ?>
</p>
				<p><?php 
            echo sprintf(__('A DNS problem or firewall is preventing all access from your web server to Akismet.com.  <strong>Akismet cannot work correctly until this is fixed.</strong>  Please contact your web host or firewall administrator and give them <a href="%s" target="_blank">this information about Akismet and firewalls</a>.'), 'http://blog.akismet.com/akismet-hosting-faq/');
            ?>
</p>
			<?php 
        }
    }
    if (!empty($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 = $status ? '#2d2' : '#d22';
            ?>
		<tr>
		<td><?php 
            echo htmlspecialchars($ip);
            ?>
</td>
		<td style="padding: 0 .5em; font-weight:bold; color: #fff; background-color: <?php 
            echo $color;
            ?>
"><?php 
            echo $status ? __('No problems') : __('Obstructed');
            ?>
</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>
</form>

</div>
</div>
<?php 
}
function akismet_get_host($host)
{
    // if all servers are accessible, just return the host name.
    // if not, return an IP that was known to be accessible at the last check.
    if (akismet_server_connectivity_ok()) {
        return $host;
    } else {
        $ips = akismet_get_server_connectivity();
        // a firewall may be blocking access to some Akismet IPs
        if (count($ips) > 0 && count(array_filter($ips)) < count($ips)) {
            // use DNS to get current IPs, but exclude any known to be unreachable
            $dns = (array) gethostbynamel(rtrim($host, '.') . '.');
            $dns = array_filter($dns);
            foreach ($dns as $ip) {
                if (array_key_exists($ip, $ips) && empty($ips[$ip])) {
                    unset($dns[$ip]);
                }
            }
            // return a random IP from those available
            if (count($dns)) {
                return $dns[array_rand($dns)];
            }
        }
    }
    // if all else fails try the host name
    return $host;
}
Example #3
0
function akismet_server_connectivity_ok()
{
    // skip the check on WPMU because the status page is hidden
    global $wpcom_api_key;
    if ($wpcom_api_key) {
        return true;
    }
    $servers = akismet_get_server_connectivity();
    return !(empty($servers) || !count($servers) || count(array_filter($servers)) < count($servers));
}