<?php

/*
 * This file is part of the Symfony package.
 *
 * (c) Fabien Potencier <fabien@symfony.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Component\HttpKernel\Profiler;

use Psr\Log\LoggerInterface;
use Symfony\Component\HttpFoundation\Exception\ConflictingHeadersException;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\DataCollector\DataCollectorInterface;
use Symfony\Component\HttpKernel\DataCollector\LateDataCollectorInterface;
use Symfony\Contracts\Service\ResetInterface;

/**
 * Profiler.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 */
class Profiler implements ResetInterface
{
    private $storage;

    /**
     * @var DataCollectorInterface[]
     */
    private array $collectors = [];

    private $logger;
    private bool $initiallyEnabled = true;
    private bool $enabled = true;

    public function __construct(ProfilerStorageInterface $storage, LoggerInterface $logger = null, bool $enable = true)
    {
        $this->storage = $storage;
        $this->logger = $logger;
        $this->initiallyEnabled = $this->enabled = $enable;
    }

    /**
     * Disables the profiler.
     */
    public function disable()
    {
        $this->enabled = false;
    }

    /**
     * Enables the profiler.
     */
    public function enable()
    {
        $this->enabled = true;
    }

    /**
     * Loads the Profile for the given Response.
     */
    public function loadProfileFromResponse(Response $response): ?Profile
    {
        if (!$token = $response->headers->get('X-Debug-Token')) {
            return null;
        }

        return $this->loadProfile($token);
    }

    /**
     * Loads the Profile for the given token.
     */
    public function loadProfile(string $token): ?Profile
    {
        return $this->storage->read($token);
    }

    /**
     * Saves a Profile.
     */
    public function saveProfile(Profile $profile): bool
    {
        // late collect
        foreach ($profile->getCollectors() as $collector) {
            if ($collector instanceof LateDataCollectorInterface) {
                $collector->lateCollect();
            }
        }

        if (!($ret = $this->storage->write($profile)) && null !== $this->logger) {
            $this->logger->warning('Unable to store the profiler information.', ['configured_storage' => \get_class($this->storage)]);
        }

        return $ret;
    }

    /**
     * Purges all data from the storage.
     */
    public function purge()
    {
        $this->storage->purge();
    }

    /**
     * Finds profiler tokens for the given criteria.
     *
     * @param string|null $limit The maximum number of tokens to return
     * @param string|null $start The start date to search from
     * @param string|null $end   The end date to search to
     *
     * @see https://php.net/datetime.formats for the supported date/time formats
     */
    public function find(?string $ip, ?string $url, ?string $limit, ?string $method, ?string $start, ?string $end, string $statusCode = null): array
    {
        return $this->storage->find($ip, $url, $limit, $method, $this->getTimestamp($start), $this->getTimestamp($end), $statusCode);
    }

    /**
     * Collects data for the given Response.
     */
    public function collect(Request $request, Response $response, \Throwable $exception = null): ?Profile
    {
        if (false === $this->enabled) {
            return null;
        }

        $profile = new Profile(substr(hash('sha256', uniqid(mt_rand(), true)), 0, 6));
        $profile->setTime(time());
        $profile->setUrl($request->getUri());
        $profile->setMethod($request->getMethod());
        $profile->setStatusCode($response->getStatusCode());
        try {
            $profile->setIp($request->getClientIp());
        } catch (ConflictingHeadersException $e) {
            $profile->setIp('Unknown');
        }

        if ($prevToken = $response->headers->get('X-Debug-Token')) {
            $response->headers->set('X-Previous-Debug-Token', $prevToken);
        }

        $response->headers->set('X-Debug-Token', $profile->getToken());

        foreach ($this->collectors as $collector) {
            $collector->collect($request, $response, $exception);

            // we need to clone for sub-requests
            $profile->addCollector(clone $collector);
        }

        return $profile;
    }

    public function reset()
    {
        foreach ($this->collectors as $collector) {
            $collector->reset();
        }
        $this->enabled = $this->initiallyEnabled;
    }

    /**
     * Gets the Collectors associated with this profiler.
     */
    public function all(): array
    {
        return $this->collectors;
    }

    /**
     * Sets the Collectors associated with this profiler.
     *
     * @param DataCollectorInterface[] $collectors An array of collectors
     */
    public function set(array $collectors = [])
    {
        $this->collectors = [];
        foreach ($collectors as $collector) {
            $this->add($collector);
        }
    }

    /**
     * Adds a Collector.
     */
    public function add(DataCollectorInterface $collector)
    {
        $this->collectors[$collector->getName()] = $collector;
    }

    /**
     * Returns true if a Collector for the given name exists.
     *
     * @param string $name A collector name
     */
    public function has(string $name): bool
    {
        return isset($this->collectors[$name]);
    }

    /**
     * Gets a Collector by name.
     *
     * @param string $name A collector name
     *
     * @throws \InvalidArgumentException if the collector does not exist
     */
    public function get(string $name): DataCollectorInterface
    {
        if (!isset($this->collectors[$name])) {
            throw new \InvalidArgumentException(sprintf('Collector "%s" does not exist.', $name));
        }

        return $this->collectors[$name];
    }

    private function getTimestamp(?string $value): ?int
    {
        if (null === $value || '' === $value) {
            return null;
        }

        try {
            $value = new \DateTime(is_numeric($value) ? '@'.$value : $value);
        } catch (\Exception $e) {
            return null;
        }

        return $value->getTimestamp();
    }
}

• [F] FileProfilerStorage.php
  Delete
• [F] Profile.php
  Delete
• [F] Profiler.php
  Delete
• [F] ProfilerStorageInterface.php
  Delete

Blog Section

Discover the Latest in Digital Payments and NFC Technology

Dive into our blog to explore the cutting-edge trends in digital payments and NFC technology. Stay updated on the innovations that are revolutionizing transactions, boosting security, and making payments quicker and more convenient. Learn how these advancements are shaping the future of financial interactions and driving the global transition towards a cashless world.

The Rise of Contactless Payments:...

In recent years, contactless payments have surged in popularity, driven...

Visit Blog

March 27, 2024

Enhancing Payment Security: The Role...

As digital transactions proliferate, ensuring robust payment security is more critical than ever. Two foundational...

Visit Blog

March 27, 2024

The Future of Digital Wallets:...

Digital wallets have fundamentally transformed how we manage money, offering a streamlined, secure, and highly...

Visit Blog

March 27, 2024