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 »'); ?> " /></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 $status ? __('No problems') : __('Obstructed'); ?> </td> <?php } } ?> </tbody> </table> <p><?php if (get_option('akismet_connectivity_time')) { echo sprintf(__('Last checked %s ago.'), human_time_diff(get_option('akismet_connectivity_time'))); } ?> </p> <p class="submit"><input type="submit" name="check" value="<?php _e('Check network status »'); ?> " /></p> </form> </div> </div> <?php }
function akismet_get_host($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; }
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)); }