/**
* newSessionAfterValidation - Returns a FacebookSession for a
* validated & parsed signed request.
*
* @param array $parsedSignedRequest
*
* @return FacebookSession
*
* @throws FacebookRequestException
*/
private static function newSessionAfterValidation($parsedSignedRequest)
{
$params = array('client_id' => self::$defaultAppId, 'redirect_uri' => '', 'client_secret' => self::$defaultAppSecret, 'code' => $parsedSignedRequest['code']);
$response = (new FacebookRequest(self::newAppSession(self::$defaultAppId, self::$defaultAppSecret), 'GET', '/oauth/access_token', $params))->execute()->getResponse();
if (isset($response['access_token'])) {
return new FacebookSession($response['access_token'], $parsedSignedRequest);
}
throw FacebookRequestException::create(json_encode($parsedSignedRequest), $parsedSignedRequest, 401);
}
/**
* execute - Makes the request to Facebook and returns the result.
*
* @return FacebookResponse
*
* @throws FacebookSDKException
* @throws FacebookRequestException
*/
public function execute()
{
$url = $this->getRequestURL();
$params = $this->getParameters();
if ($this->method === "GET") {
$url = self::appendParamsToUrl($url, $params);
$params = array();
}
$connection = self::getHttpClientHandler();
$connection->addRequestHeader('User-Agent', 'fb-php-' . self::VERSION);
$connection->addRequestHeader('Accept-Encoding', '*');
// Support all available encodings.
// ETag
if (isset($this->etag)) {
$connection->addRequestHeader('If-None-Match', $this->etag);
}
$result = $connection->send($url, $this->method, $params);
// Client error
if ($result === false) {
throw new FacebookSDKException($connection->getErrorMessage(), $connection->getErrorCode());
}
$etagHit = 304 == $connection->getResponseHttpStatusCode();
$headers = $connection->getResponseHeaders();
$etagReceived = isset($headers['ETag']) ? $headers['ETag'] : null;
$decodedResult = json_decode($result);
if ($decodedResult === null) {
$out = array();
parse_str($result, $out);
return new FacebookResponse($this, $out, $result, $etagHit, $etagReceived);
}
if (isset($decodedResult->error)) {
throw FacebookRequestException::create($result, $decodedResult->error, $connection->getResponseHttpStatusCode());
}
return new FacebookResponse($this, $decodedResult, $result, $etagHit, $etagReceived);
}
/**
* execute - Makes the request to Facebook and returns the result.
*
* @return FacebookResponse
*/
public function execute()
{
$url = $this->getRequestURL();
$params = $this->getParameters();
$curl = curl_init();
$options = array(CURLOPT_CONNECTTIMEOUT => 10, CURLOPT_RETURNTRANSFER => true, CURLOPT_TIMEOUT => 60, CURLOPT_ENCODING => '', CURLOPT_USERAGENT => 'fb-php-' . self::VERSION);
if ($this->method === "GET") {
$url = $url . "?" . http_build_query($params);
} else {
$options[CURLOPT_POSTFIELDS] = $params;
}
$options[CURLOPT_URL] = $url;
curl_setopt_array($curl, $options);
$result = curl_exec($curl);
$error = curl_errno($curl);
if ($error == 60 || $error == 77) {
curl_setopt($curl, CURLOPT_CAINFO, dirname(__FILE__) . DIRECTORY_SEPARATOR . 'fb_ca_chain_bundle.crt');
$result = curl_exec($curl);
$error = curl_errno($curl);
}
// With dual stacked DNS responses, it's possible for a server to
// have IPv6 enabled but not have IPv6 connectivity. If this is
// the case, curl will try IPv4 first and if that fails, then it will
// fall back to IPv6 and the error EHOSTUNREACH is returned by the
// operating system.
if ($result === false && empty($opts[CURLOPT_IPRESOLVE])) {
$matches = array();
$regex = '/Failed to connect to ([^:].*): Network is unreachable/';
if (preg_match($regex, curl_error($curl), $matches)) {
if (strlen(@inet_pton($matches[1])) === 16) {
error_log('Invalid IPv6 configuration on server, ' . 'Please disable or get native IPv6 on your server.');
curl_setopt($curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
$result = curl_exec($curl);
$error = curl_errno($curl);
}
}
}
$errorMessage = curl_error($curl);
$httpStatus = curl_getinfo($curl, CURLINFO_HTTP_CODE);
curl_close($curl);
if ($result === false) {
throw new FacebookSDKException($errorMessage, $error);
}
$decodedResult = json_decode($result);
if ($decodedResult === null) {
$out = array();
parse_str($result, $out);
return new FacebookResponse($this, $out, $result);
}
if (isset($decodedResult->error)) {
throw FacebookRequestException::create($result, $decodedResult->error, $httpStatus);
}
return new FacebookResponse($this, $decodedResult, $result);
}
/**
* execute - Makes the request to Facebook and returns the result.
*
* @return FacebookResponse
*
* @throws FacebookSDKException
* @throws FacebookRequestException
*/
public function execute()
{
$url = $this->getRequestURL();
$params = $this->getParameters();
$curl = curl_init();
$options = array(CURLOPT_CONNECTTIMEOUT => 10, CURLOPT_RETURNTRANSFER => true, CURLOPT_TIMEOUT => 60, CURLOPT_ENCODING => '', CURLOPT_USERAGENT => 'fb-php-' . self::VERSION, CURLOPT_HEADER => true);
if ($this->method === "GET") {
$url = self::appendParamsToUrl($url, $params);
} else {
$options[CURLOPT_POSTFIELDS] = $params;
}
if ($this->method === 'DELETE' || $this->method === 'PUT') {
$options[CURLOPT_CUSTOMREQUEST] = $this->method;
}
$options[CURLOPT_URL] = $url;
// ETag
if ($this->etag != null) {
$options[CURLOPT_HTTPHEADER] = array('If-None-Match: ' . $this->etag);
}
curl_setopt_array($curl, $options);
$result = curl_exec($curl);
$error = curl_errno($curl);
if ($error == 60 || $error == 77) {
curl_setopt($curl, CURLOPT_CAINFO, dirname(__FILE__) . DIRECTORY_SEPARATOR . 'fb_ca_chain_bundle.crt');
$result = curl_exec($curl);
$error = curl_errno($curl);
}
// With dual stacked DNS responses, it's possible for a server to
// have IPv6 enabled but not have IPv6 connectivity. If this is
// the case, curl will try IPv4 first and if that fails, then it will
// fall back to IPv6 and the error EHOSTUNREACH is returned by the
// operating system.
if ($result === false && empty($opts[CURLOPT_IPRESOLVE])) {
$matches = array();
$regex = '/Failed to connect to ([^:].*): Network is unreachable/';
if (preg_match($regex, curl_error($curl), $matches)) {
if (strlen(@inet_pton($matches[1])) === 16) {
error_log('Invalid IPv6 configuration on server, ' . 'Please disable or get native IPv6 on your server.');
curl_setopt($curl, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4);
$result = curl_exec($curl);
$error = curl_errno($curl);
}
}
} else {
$info = curl_getinfo($curl);
if ($info['http_code'] == 304) {
$etagHit = true;
} else {
$etagHit = false;
}
$headers = mb_substr($result, 0, $info['header_size']);
$result = mb_substr($result, $info['header_size']);
if (($etagPos = strpos($headers, 'ETag: ')) !== FALSE) {
$etagPos += strlen('ETag: ');
$etagReceived = substr($headers, $etagPos, strpos($headers, chr(10), $etagPos) - $etagPos - 1);
} else {
$etagReceived = null;
}
}
$errorMessage = curl_error($curl);
$httpStatus = curl_getinfo($curl, CURLINFO_HTTP_CODE);
curl_close($curl);
if ($result === false) {
throw new FacebookSDKException($errorMessage, $error);
}
$decodedResult = json_decode($result);
if ($decodedResult === null) {
$out = array();
parse_str($result, $out);
return new FacebookResponse($this, $out, $result, $etagHit, $etagReceived);
}
if (isset($decodedResult->error)) {
throw FacebookRequestException::create($result, $decodedResult->error, $httpStatus);
}
return new FacebookResponse($this, $decodedResult, $result, $etagHit, $etagReceived);
}
