CVKontakteOAuthInterface::GetAccessToken

public function GetAccessToken($redirect_uri)
{
	$token = $this->getStorageTokens();
	if (is_array($token))
	{
		$this->access_token = $token["OATOKEN"];

		return true;
	}

	if ($this->code === false)
	{
		return false;
	}

	$query = array(
		"client_id" => $this->appID,
		"client_secret" => $this->appSecret,
		"code" => $this->code,
		"redirect_uri" => $redirect_uri,
	);

	$h = new BitrixMainWebHttpClient(array(
		"socketTimeout" => $this->httpTimeout,
		"streamTimeout" => $this->httpTimeout,
	));

	$result = $h->post(self::TOKEN_URL, $query);

	try
	{
		$arResult = BitrixMainWebJson::decode($result);
	} catch (BitrixMainArgumentException $e)
	{
		$arResult = array();
	}

	foreach ($arResult as $key => $value)
	{
		if (mb_strpos($key, 'access_token_') === 0)
		{
			$this->access_token = $value;
			$this->userID = null;
			$this->userEmail = null;

			$_SESSION["OAUTH_DATA"] = array("OATOKEN" => $this->access_token);
			return true;
		}
	}

	if ((isset($arResult["access_token"]) && $arResult["access_token"] <> '') && isset($arResult["user_id"]) && $arResult["user_id"] <> '')
	{
		$this->access_token = $arResult["access_token"];
		$this->userID = $arResult["user_id"];
		$this->userEmail = $arResult["email"];

		$_SESSION["OAUTH_DATA"] = array("OATOKEN" => $this->access_token);

		return true;
	}

	return false;
}