public function sign()

in src/OSS/Signer/SignerV4.php [13:58]
42 lines of code
7 McCabe index (conditional complexity)

    public function sign(RequestCore $request, Credentials $credentials, array &$options)
    {
        // Date
        if (!isset($request->request_headers['Date'])) {
            $request->add_header('Date', gmdate('D, d M Y H:i:s \G\M\T'));
        }
        $timestamp = strtotime($request->request_headers['Date']);
        if ($timestamp === false) {
            $timestamp = time();
        }
        $datetime = gmdate('Ymd\THis\Z', $timestamp);
        $date = substr($datetime, 0, 8);
        $request->add_header("x-oss-date", $datetime);
        if (!isset($request->request_headers['x-oss-content-sha256'])) {
            $request->add_header("x-oss-content-sha256", 'UNSIGNED-PAYLOAD');
        }
        // Credentials information
        if (!empty($credentials->getSecurityToken())) {
            $request->add_header("x-oss-security-token", $credentials->getSecurityToken());
        }
        $headers = $request->request_headers;
        $method = strtoupper($request->method);
        $region = $options['region'];
        $product = $options['product'];
        $scope = $this->buildScope($date, $region, $product);
        $resourcePath = $this->getResourcePath($options);
        $additionalHeaders = $this->getCommonAdditionalHeaders($request, $options);
        $queryString = parse_url($request->request_url, PHP_URL_QUERY);
        $query = array();
        if ($queryString !== null) {
            parse_str($queryString, $query);
        }
        $canonicalRequest = $this->calcCanonicalRequest($method, $resourcePath, $query, $headers, $additionalHeaders);
        $stringToSign = $this->calcStringToSign($datetime, $scope, $canonicalRequest);
//        printf('canonical request:%s' . PHP_EOL, $canonicalRequest);
//        printf('sign str:%s' . PHP_EOL, $stringToSign);
        $options['string_to_sign'] = $stringToSign;
        $signature = $this->calcSignature($credentials->getAccessKeySecret(), $date, $region, $product, $stringToSign);
        $authorization = 'OSS4-HMAC-SHA256 Credential=' . $credentials->getAccessKeyId() . '/' . $scope;
        $additionalHeadersString = implode(';', $additionalHeaders);
        if ($additionalHeadersString !== '') {
            $authorization .= ',AdditionalHeaders=' . $additionalHeadersString;
        }
        $authorization .= ',Signature=' . $signature;
        $request->add_header('Authorization', $authorization);
    }