Viewing file:  CloudFlareAPI.php (12.97 KB) -rw-rw-rw-
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
<?php
/**
* W3 CloudFlare Class
*/
define('W3TC_CLOUDFLARE_API_URL', 'https://www.cloudflare.com/api_json.html');
define('W3TC_CLOUDFLARE_EXTERNAL_EVENT_URL', 'https://www.cloudflare.com/ajax/external-event.html');
define('W3TC_CLOUDFLARE_IP4_URL', 'https://www.cloudflare.com/ips-v4');
define('W3TC_CLOUDFLARE_IP6_URL', "https://www.cloudflare.com/ips-v6");
/**
* Class CloudFlareAPI
*/
class CloudFlareAPI {
/**
* Config array
*
* @var array
*/
var $_cf_config = array();
/**
* @var W3_Config
*/
var $_config;
/**
* Checks if cloudflare error pushed to output
*
* @var boolean
*/
var $_fault_signaled = false;
/**
* PHP5-style constructor
*
* @param array $config
*/
function __construct($config = array()) {
$this->_config = w3_instance('W3_Config');
if (empty($config)) {
$this->_cf_config = array(
'email' => w3tc_get_extension_config('cloudflare','email'),
'key' => w3tc_get_extension_config('cloudflare','key'),
'zone' => w3tc_get_extension_config('cloudflare','zone'));
} else {
$this->_cf_config = array_merge(array(
'email' => '',
'key' => '',
'zone' => ''
), $config);
}
}
/**
* Makes API request
*
* @param string $action
* @param string $value
* @return object
*/
function api_request($action, $value = null) {
w3_require_once(W3TC_INC_DIR . '/functions/http.php');
if (empty($this->_cf_config['email']) || !filter_var($this->_cf_config['email'], FILTER_VALIDATE_EMAIL)) {
$this->_set_last_error(__('CloudFlare requires "email" to be set.','w3-total-cache'));
return false;
}
if (empty($this->_cf_config['key']) || !is_string($this->_cf_config['key'])) {
$this->_set_last_error(__('CloudFlare requires "API key" to be set.','w3-total-cache'));
return false;
}
if (empty($this->_cf_config['zone']) || !is_string($this->_cf_config['zone']) || strpos($this->_cf_config['zone'], '.') === false){
$this->_set_last_error(__('CloudFlare requires "domain" to be set.','w3-total-cache'));
return false;
}
$url = sprintf('%s?email=%s&tkn=%s&z=%s&a=%s', W3TC_CLOUDFLARE_API_URL, urlencode($this->_cf_config['email']), urlencode($this->_cf_config['key']), urlencode($this->_cf_config['zone']), urlencode($action));
if ($value !== null) {
$url .= sprintf('&v=%s', urlencode($value));
}
$response = w3_http_get($url);
if (!is_wp_error($response)) {
$response = json_decode($response['body']);
if (isset($response->result) && $response->result == 'error') {
$this->_set_last_error('Setting: ' . $action . ' ' . (isset($response->msg) ? $response->msg : 'Unknown error'));
} else {
$this->clear_last_error();
}
return $response;
} else {
$this->_set_last_error('Setting: ' . $action. ' ' . $response->get_error_message());
}
return false;
}
/**
* Makes external event request
*
* @param string $type
* @param string $value
* @return array
*/
function external_event($type, $value) {
w3_require_once(W3TC_INC_DIR . '/functions/http.php');
if (empty($this->_cf_config['email']) || !filter_var($this->_cf_config['email'], FILTER_VALIDATE_EMAIL))
return false;
if (empty($this->_cf_config['key']) || !is_string($this->_cf_config['key']))
return false;
if ($this->get_last_error())
return false;
$url = sprintf('%s?u=%s&tkn=%s&evnt_t=%s&evnt_v=%s', W3TC_CLOUDFLARE_EXTERNAL_EVENT_URL, urlencode($this->_cf_config['email']), urlencode($this->_cf_config['key']), urlencode($type), urlencode($value));
$response = w3_http_get($url);
if (!is_wp_error($response)) {
return json_decode($response['body']);
}
return false;
}
/**
* Fix client's IP-address
*
* @return void
*/
function fix_remote_addr() {
if (isset($_SERVER['HTTP_CF_CONNECTING_IP']) && !empty($_SERVER['HTTP_CF_CONNECTING_IP'])) {
w3_require_once(W3TC_INC_DIR . '/functions/ip_in_range.php');
if (strpos($_SERVER["REMOTE_ADDR"], ":") === FALSE) {
$ip4_ranges = w3tc_get_extension_config('cloudflare','ips.ip4', $this->_config, array());
foreach ($ip4_ranges as $range) {
if (w3_ipv4_in_range($_SERVER['REMOTE_ADDR'], $range)) {
$_SERVER['REMOTE_ADDR'] = $_SERVER['HTTP_CF_CONNECTING_IP'];
break;
}
}
} else {
$ip6_ranges = w3tc_get_extension_config('cloudflare','ips.ip6', $this->_config, array());
$ip6 = w3_get_ipv6_full($_SERVER["REMOTE_ADDR"]);
foreach ($ip6_ranges as $range) {
if (w3_ipv6_in_range($ip6, $range)) {
$_SERVER['REMOTE_ADDR'] = $_SERVER['HTTP_CF_CONNECTING_IP'];
break;
}
}
}
}
}
static function get_last_error() {
return get_option('w3tc_clourflare_last_error');
}
static function clear_last_error() {
update_option('w3tc_clourflare_last_error', false);
}
private function _set_last_error($message) {
update_option('w3tc_clourflare_last_error', $message);
}
/**
* Check
* @throws FilesystemOperationException
* @throws FileOperationException
*/
public function update_ip_ranges() {
w3_require_once(W3TC_INC_DIR . '/functions/http.php');
$ip4_diff = $ip6_diff = false;
$response =w3_http_get(W3TC_CLOUDFLARE_IP4_URL);
$extensions_settings = $this->_config->get_array('extensions.settings', array());
if (!is_wp_error($response)) {
$ip4_data = $response['body'];
$ip4_data = explode("\n", $ip4_data);
$ip4_data_old = w3tc_get_extension_config('cloudflare','ips.ip4', $this->_config, array());
if ($ip4_diff = array_diff($ip4_data, $ip4_data_old)) {
$extensions_settings['cloudflare']['ips.ip4'] = $ip4_data;
$this->_config->set('extensions.settings', $extensions_settings);
}
}
$response =w3_http_get(W3TC_CLOUDFLARE_IP6_URL);
if (!is_wp_error($response)) {
$ip6_data = $response['body'];
$ip6_data = explode("\n", $ip6_data);
$ip6_data_old = w3tc_get_extension_config('cloudflare','ips.ip6', $this->_config, array());
if ($ip6_diff = array_diff($ip6_data, $ip6_data_old)) {
$extensions_settings['cloudflare']['ips.ip6'] = $ip6_data;
$this->_config->set('extensions.settings', $extensions_settings);
}
}
if ($ip4_diff || $ip6_diff)
try {
$this->_config->save();
$this->_config->refresh_cache();
} catch(Exception $ex){}
}
// Report spam.
function report_if_spam($id, $status) {
// If spam, send this info over to CloudFlare.
if ($status == "spam") {
$comment = get_comment($id);
$value = array("a" => $comment->comment_author,
"am" => $comment->comment_author_email,
"ip" => $comment->comment_author_IP,
"con" => substr($comment->comment_content, 0, 100));
$this->external_event('WP_SPAM', json_encode($value));
}
}
/**
* @return array
*/
function get_settings() {
$settings = get_transient('w3tc_cloudflare_settings');
if (false === $settings) {
$settings = array('sec_lvl' => 'eoff', 'devmode' => 0, 'async' => 0, 'minify' => 0);
$response = $this->api_request('zone_settings');
if ($response && $response->result == 'success' && isset($response->response->result->objs[0])) {
switch ($response->response->result->objs[0]->sec_lvl) {
case 'I\'m under attack!':
$seclvl = 'help';
break;
case 'Essentially Off':
$seclvl = 'eoff';
break;
case 'High';
$seclvl = 'high';
break;
case 'Medium';
$seclvl = 'med';
break;
case 'Low';
$seclvl = 'low';
break;
default:
$seclvl = $response->response->result->objs[0]->sec_lvl;
}
$settings['sec_lvl'] = $seclvl;
$devmode = ($response->response->result->objs[0]->dev_mode >= time() ? $response->response->result->objs[0]->dev_mode : 0);
$settings['devmode'] = $devmode;
$settings['async'] = $response->response->result->objs[0]->async;
$settings['minify'] = $response->response->result->objs[0]->minify;
set_transient('w3tc_cloudflare_settings', $settings, 3600);
}
}
return $settings;
}
function check_lasterror() {
if (w3tc_get_extension_config('cloudflare','enabled') && self::get_last_error()) {
if (!$this->_fault_signaled) {
$this->_fault_signaled = true;
return sprintf('Unable to communicate with CloudFlare API: %s.', self::get_last_error());
}
}
return false;
}
/**
* If error has been reported
* @return bool
*/
function get_fault_signaled() {
return $this->_fault_signaled;
}
public function get_options() {
return array(
'sec_lvl' => array(
'help' => 'I\'m under attack!',
'high' => 'High',
'med' => 'Medium',
'low' => 'Low',
'eoff' => 'Essentially Off'
),
'devmode' => array(
1 => 'On',
0 => 'Off'
),
'dev_mode' => array(
1 => 'On',
0 => 'Off'
),
'async'=> array(
0 => 'Off',
'a' => 'Automatic',
'm' => 'Manual'
),
'minify' => array(
0 => 'Off',
1 => 'JavaScript only',
2 => 'CSS only',
3 => 'JavaScript and CSS',
4 => 'HTML only',
5 => 'JavaScript and HTML',
6 => 'CSS and HTML',
7 => 'CSS, JavaScript, and HTML'
)
);
}
/**
* @return mixed
*/
public function purge() {
@set_time_limit(w3tc_get_extension_config('cloudflare','timelimit.api_request', null, 180));
delete_transient('w3tc_cloudflare_settings');
return $this->api_request('fpurge_ts', 1);
}
/**
* If minify is enabled at all
* @return bool
*/
public function minify_enabled() {
$settings = $this->get_settings();
return $settings['minify'] > 0;
}
/**
* @param $cf_values
* @return bool
*/
public function save_settings($cf_values) {
@set_time_limit(w3tc_get_extension_config('cloudflare','timelimit.api_request', null, 180));
ksort($cf_values);
$cf_values = $this->_cleanup_settings($cf_values);
foreach ($cf_values as $key => $settings) {
if ($settings['old'] != $settings['new']) {
$response = $this->api_request($key, $settings['new']);
if (!$response || ($response && $response->result != 'success')) {
return false;
}
}
}
delete_transient('w3tc_cloudflare_settings');
return true;
}
/**
* Takes an array with posted CF settings and reformat it.
* @param $settings
* @return array
*/
private function _cleanup_settings($settings) {
$keys = array_keys($this->get_options());
$clean_settings = array();
foreach ($settings as $key => $value) {
$setting = substr($key, 0, strlen($key)-4);
if (in_array($setting, $keys)) {
if (strpos($key, '_old') !== false) {
$clean_settings[$setting]['old'] = $value;
} elseif (strpos($key, '_new') !== false) {
$clean_settings[$setting]['new'] = $value;
}
}
}
return $clean_settings;
}
/*
* Resets settings cache
*/
public function reset_settings_cache() {
return delete_transient('w3tc_cloudflare_settings');
}
}
|