private function discoverHttpRequestData()

in agent/php/ElasticApm/Impl/AutoInstrument/TransactionForExtensionRequest.php [166:233]
55 lines of code
14 McCabe index (conditional complexity)

    private function discoverHttpRequestData(): bool
    {
        /** @phpstan-ignore-next-line */
        if (!self::isGlobalServerVarSet()) {
            ($loggerProxy = $this->logger->ifDebugLevelEnabled(__LINE__, __FUNCTION__))
            && $loggerProxy->log('$_SERVER variable is not populated - forcing PHP engine to populate it...');

            /** @phpstan-ignore-next-line */
            if (!self::isGlobalServerVarSet()) {
                ($loggerProxy = $this->logger->ifErrorLevelEnabled(__LINE__, __FUNCTION__))
                && $loggerProxy->log(
                    '$_SERVER variable is not populated even after forcing PHP engine to populate it'
                    . ' - agent will have to fallback on defaults'
                );
                return true;
            }
        }

        /** @var ?string $urlPath */
        $urlPath = null;
        /** @var ?string $urlQuery */
        $urlQuery = null;

        $pathQuery = $this->getMandatoryServerVarStringElement('REQUEST_URI');
        if (is_string($pathQuery)) {
            UrlUtil::splitPathQuery($pathQuery, /* ref */ $urlPath, /* ref */ $urlQuery);
            if ($urlPath === null) {
                ($loggerProxy = $this->logger->ifErrorLevelEnabled(__LINE__, __FUNCTION__))
                && $loggerProxy->log(
                    'Failed to extract path part from $_SERVER["REQUEST_URI"]',
                    ['$_SERVER["REQUEST_URI"]' => $pathQuery]
                );
            } else {
                if ($this->shouldHttpTransactionBeIgnored($urlPath)) {
                    return false;
                }
            }
        }

        $this->httpMethod = $this->getMandatoryServerVarStringElement('REQUEST_METHOD');

        $this->urlParts = new UrlParts();
        $this->urlParts->path = $urlPath;
        $this->urlParts->query = $urlQuery;

        $serverHttps = self::getOptionalServerVarElement('HTTPS');
        $this->urlParts->scheme = !empty($serverHttps) ? 'https' : 'http';

        $hostPort = $this->getMandatoryServerVarStringElement('HTTP_HOST');
        if ($hostPort !== null) {
            UrlUtil::splitHostPort($hostPort, /* ref */ $this->urlParts->host, /* ref */ $this->urlParts->port);
            if ($this->urlParts->host === null) {
                ($loggerProxy = $this->logger->ifErrorLevelEnabled(__LINE__, __FUNCTION__))
                && $loggerProxy->log(
                    'Failed to extract host part from $_SERVER["HTTP_HOST"]',
                    ['$_SERVER["HTTP_HOST"]' => $hostPort]
                );
            }
        }

        $queryString = self::getOptionalServerVarElement('QUERY_STRING');
        if (is_string($queryString)) {
            $this->urlParts->query = $queryString;
        }

        $this->fullUrl = self::buildFullUrl($this->urlParts->scheme, $hostPort, $pathQuery);
        return true;
    }