110 lines
2.7 KiB
PHP
110 lines
2.7 KiB
PHP
<?php
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/**
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* Class CRM_Cxn_CiviCxnHttp
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*
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* This extends the PhpHttp client used by CiviConnect and adds:
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* - Force-cache support for GET requests
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* - Compliance with SSL policy
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*/
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class CRM_Cxn_CiviCxnHttp extends \Civi\Cxn\Rpc\Http\PhpHttp {
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protected static $singleton = NULL;
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/**
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* @var CRM_Utils_Cache_Interface|null
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*/
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protected $cache;
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/**
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* @param bool $fresh
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* @return CRM_Cxn_CiviCxnHttp
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*/
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public static function singleton($fresh = FALSE) {
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if (self::$singleton === NULL || $fresh) {
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$cache = CRM_Utils_Cache::create(array(
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'name' => 'CiviCxnHttp',
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'type' => Civi::settings()->get('debug_enabled') ? 'ArrayCache' : array('SqlGroup', 'ArrayCache'),
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'prefetch' => FALSE,
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));
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self::$singleton = new CRM_Cxn_CiviCxnHttp($cache);
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}
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return self::$singleton;
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}
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/**
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* @param CRM_Utils_Cache_Interface|NULL $cache
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* The cache data store.
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*/
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public function __construct($cache) {
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$this->cache = $cache;
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}
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/**
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* @param string $verb
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* @param string $url
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* @param string $blob
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* @param array $headers
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* Array of headers (e.g. "Content-type" => "text/plain").
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* @return array
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* array($headers, $blob, $code)
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*/
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public function send($verb, $url, $blob, $headers = array()) {
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$lowVerb = strtolower($verb);
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if ($lowVerb === 'get' && $this->cache) {
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$cachePath = 'get/' . md5($url);
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$cacheLine = $this->cache->get($cachePath);
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if ($cacheLine && $cacheLine['expires'] > CRM_Utils_Time::getTimeRaw()) {
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return $cacheLine['data'];
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}
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}
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$result = parent::send($verb, $url, $blob, $headers);
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if ($lowVerb === 'get' && $this->cache) {
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$expires = CRM_Utils_Http::parseExpiration($result[0]);
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if ($expires !== NULL) {
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$cachePath = 'get/' . md5($url);
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$cacheLine = array(
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'url' => $url,
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'expires' => $expires,
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'data' => $result,
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);
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$this->cache->set($cachePath, $cacheLine);
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}
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}
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return $result;
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}
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/**
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* Create stream options.
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*
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* @param string $verb
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* @param string $url
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* @param string $blob
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* @param array $headers
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*
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* @return array
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* @throws \Exception
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*/
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protected function createStreamOpts($verb, $url, $blob, $headers) {
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$result = parent::createStreamOpts($verb, $url, $blob, $headers);
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$caConfig = CA_Config_Stream::probe(array(
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'verify_peer' => (bool) Civi::settings()->get('verifySSL'),
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));
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if ($caConfig->isEnableSSL()) {
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$result['ssl'] = $caConfig->toStreamOptions();
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}
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if (!$caConfig->isEnableSSL() && preg_match('/^https:/', $url)) {
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CRM_Core_Error::fatal('Cannot fetch document - system does not support SSL');
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}
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return $result;
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}
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}
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