<?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;

/**
 * Storage for profiler using files.
 *
 * @author Alexandre Salomé <alexandre.salome@gmail.com>
 */
class FileProfilerStorage implements ProfilerStorageInterface
{
    /**
     * Folder where profiler data are stored.
     */
    private string $folder;

    /**
     * Constructs the file storage using a "dsn-like" path.
     *
     * Example : "file:/path/to/the/storage/folder"
     *
     * @throws \RuntimeException
     */
    public function __construct(string $dsn)
    {
        if (!str_starts_with($dsn, 'file:')) {
            throw new \RuntimeException(sprintf('Please check your configuration. You are trying to use FileStorage with an invalid dsn "%s". The expected format is "file:/path/to/the/storage/folder".', $dsn));
        }
        $this->folder = substr($dsn, 5);

        if (!is_dir($this->folder) && false === @mkdir($this->folder, 0777, true) && !is_dir($this->folder)) {
            throw new \RuntimeException(sprintf('Unable to create the storage directory (%s).', $this->folder));
        }
    }

    /**
     * {@inheritdoc}
     */
    public function find(?string $ip, ?string $url, ?int $limit, ?string $method, int $start = null, int $end = null, string $statusCode = null): array
    {
        $file = $this->getIndexFilename();

        if (!file_exists($file)) {
            return [];
        }

        $file = fopen($file, 'r');
        fseek($file, 0, \SEEK_END);

        $result = [];
        while (\count($result) < $limit && $line = $this->readLineFromFile($file)) {
            $values = str_getcsv($line);
            [$csvToken, $csvIp, $csvMethod, $csvUrl, $csvTime, $csvParent, $csvStatusCode] = $values;
            $csvTime = (int) $csvTime;

            if ($ip && !str_contains($csvIp, $ip) || $url && !str_contains($csvUrl, $url) || $method && !str_contains($csvMethod, $method) || $statusCode && !str_contains($csvStatusCode, $statusCode)) {
                continue;
            }

            if (!empty($start) && $csvTime < $start) {
                continue;
            }

            if (!empty($end) && $csvTime > $end) {
                continue;
            }

            $result[$csvToken] = [
                'token' => $csvToken,
                'ip' => $csvIp,
                'method' => $csvMethod,
                'url' => $csvUrl,
                'time' => $csvTime,
                'parent' => $csvParent,
                'status_code' => $csvStatusCode,
            ];
        }

        fclose($file);

        return array_values($result);
    }

    /**
     * {@inheritdoc}
     */
    public function purge()
    {
        $flags = \FilesystemIterator::SKIP_DOTS;
        $iterator = new \RecursiveDirectoryIterator($this->folder, $flags);
        $iterator = new \RecursiveIteratorIterator($iterator, \RecursiveIteratorIterator::CHILD_FIRST);

        foreach ($iterator as $file) {
            if (is_file($file)) {
                unlink($file);
            } else {
                rmdir($file);
            }
        }
    }

    /**
     * {@inheritdoc}
     */
    public function read(string $token): ?Profile
    {
        return $this->doRead($token);
    }

    /**
     * {@inheritdoc}
     *
     * @throws \RuntimeException
     */
    public function write(Profile $profile): bool
    {
        $file = $this->getFilename($profile->getToken());

        $profileIndexed = is_file($file);
        if (!$profileIndexed) {
            // Create directory
            $dir = \dirname($file);
            if (!is_dir($dir) && false === @mkdir($dir, 0777, true) && !is_dir($dir)) {
                throw new \RuntimeException(sprintf('Unable to create the storage directory (%s).', $dir));
            }
        }

        $profileToken = $profile->getToken();
        // when there are errors in sub-requests, the parent and/or children tokens
        // may equal the profile token, resulting in infinite loops
        $parentToken = $profile->getParentToken() !== $profileToken ? $profile->getParentToken() : null;
        $childrenToken = array_filter(array_map(function (Profile $p) use ($profileToken) {
            return $profileToken !== $p->getToken() ? $p->getToken() : null;
        }, $profile->getChildren()));

        // Store profile
        $data = [
            'token' => $profileToken,
            'parent' => $parentToken,
            'children' => $childrenToken,
            'data' => $profile->getCollectors(),
            'ip' => $profile->getIp(),
            'method' => $profile->getMethod(),
            'url' => $profile->getUrl(),
            'time' => $profile->getTime(),
            'status_code' => $profile->getStatusCode(),
        ];

        $data = serialize($data);

        if (\function_exists('gzencode')) {
            $data = gzencode($data, 3);
        }

        if (false === file_put_contents($file, $data, \LOCK_EX)) {
            return false;
        }

        if (!$profileIndexed) {
            // Add to index
            if (false === $file = fopen($this->getIndexFilename(), 'a')) {
                return false;
            }

            fputcsv($file, [
                $profile->getToken(),
                $profile->getIp(),
                $profile->getMethod(),
                $profile->getUrl(),
                $profile->getTime(),
                $profile->getParentToken(),
                $profile->getStatusCode(),
            ]);
            fclose($file);
        }

        return true;
    }

    /**
     * Gets filename to store data, associated to the token.
     */
    protected function getFilename(string $token): string
    {
        // Uses 4 last characters, because first are mostly the same.
        $folderA = substr($token, -2, 2);
        $folderB = substr($token, -4, 2);

        return $this->folder.'/'.$folderA.'/'.$folderB.'/'.$token;
    }

    /**
     * Gets the index filename.
     */
    protected function getIndexFilename(): string
    {
        return $this->folder.'/index.csv';
    }

    /**
     * Reads a line in the file, backward.
     *
     * This function automatically skips the empty lines and do not include the line return in result value.
     *
     * @param resource $file The file resource, with the pointer placed at the end of the line to read
     */
    protected function readLineFromFile($file): mixed
    {
        $line = '';
        $position = ftell($file);

        if (0 === $position) {
            return null;
        }

        while (true) {
            $chunkSize = min($position, 1024);
            $position -= $chunkSize;
            fseek($file, $position);

            if (0 === $chunkSize) {
                // bof reached
                break;
            }

            $buffer = fread($file, $chunkSize);

            if (false === ($upTo = strrpos($buffer, "\n"))) {
                $line = $buffer.$line;
                continue;
            }

            $position += $upTo;
            $line = substr($buffer, $upTo + 1).$line;
            fseek($file, max(0, $position), \SEEK_SET);

            if ('' !== $line) {
                break;
            }
        }

        return '' === $line ? null : $line;
    }

    protected function createProfileFromData(string $token, array $data, Profile $parent = null)
    {
        $profile = new Profile($token);
        $profile->setIp($data['ip']);
        $profile->setMethod($data['method']);
        $profile->setUrl($data['url']);
        $profile->setTime($data['time']);
        $profile->setStatusCode($data['status_code']);
        $profile->setCollectors($data['data']);

        if (!$parent && $data['parent']) {
            $parent = $this->read($data['parent']);
        }

        if ($parent) {
            $profile->setParent($parent);
        }

        foreach ($data['children'] as $token) {
            if (null !== $childProfile = $this->doRead($token, $profile)) {
                $profile->addChild($childProfile);
            }
        }

        return $profile;
    }

    private function doRead($token, Profile $profile = null): ?Profile
    {
        if (!$token || !file_exists($file = $this->getFilename($token))) {
            return null;
        }

        $h = fopen($file, 'r');
        flock($h, \LOCK_SH);
        $data = stream_get_contents($h);
        flock($h, \LOCK_UN);
        fclose($h);

        if (\function_exists('gzdecode')) {
            $data = @gzdecode($data) ?: $data;
        }

        if (!$data = unserialize($data)) {
            return null;
        }

        return $this->createProfileFromData($token, $data, $profile);
    }
}

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

How To Payment

Simple Steps to Complete Your Payment Securely and Efficiently

Making a payment on our website is quick and secure. Start by logging in or creating an account. Select your preferred payment method, input the required details, and review the information. Once you confirm everything is correct, click on the "Submit Payment" button. You’ll receive instant confirmation and can track your payment status through your account dashboard. It’s an easy and secure process.

• Go to the Payment Section: Access the payment area on our website or app.
• Choose Your Payment Method: Select your preferred payment option.
• Enter Payment Details: Provide the necessary payment information.
• Verify Your Information: Check that all details are correct.
• Confirm Your Payment: Click "Submit Payment" to complete the transaction.