<?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\Routing;

/**
 * A Route describes a route and its parameters.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Tobias Schultze <http://tobion.de>
 */
class Route implements \Serializable
{
    private string $path = '/';
    private string $host = '';
    private array $schemes = [];
    private array $methods = [];
    private array $defaults = [];
    private array $requirements = [];
    private array $options = [];
    private string $condition = '';
    private $compiled = null;

    /**
     * Constructor.
     *
     * Available options:
     *
     *  * compiler_class: A class name able to compile this route instance (RouteCompiler by default)
     *  * utf8:           Whether UTF-8 matching is enforced ot not
     *
     * @param string          $path         The path pattern to match
     * @param array           $defaults     An array of default parameter values
     * @param array           $requirements An array of requirements for parameters (regexes)
     * @param array           $options      An array of options
     * @param string|null     $host         The host pattern to match
     * @param string|string[] $schemes      A required URI scheme or an array of restricted schemes
     * @param string|string[] $methods      A required HTTP method or an array of restricted methods
     * @param string|null     $condition    A condition that should evaluate to true for the route to match
     */
    public function __construct(string $path, array $defaults = [], array $requirements = [], array $options = [], ?string $host = '', string|array $schemes = [], string|array $methods = [], ?string $condition = '')
    {
        $this->setPath($path);
        $this->addDefaults($defaults);
        $this->addRequirements($requirements);
        $this->setOptions($options);
        $this->setHost($host);
        $this->setSchemes($schemes);
        $this->setMethods($methods);
        $this->setCondition($condition);
    }

    public function __serialize(): array
    {
        return [
            'path' => $this->path,
            'host' => $this->host,
            'defaults' => $this->defaults,
            'requirements' => $this->requirements,
            'options' => $this->options,
            'schemes' => $this->schemes,
            'methods' => $this->methods,
            'condition' => $this->condition,
            'compiled' => $this->compiled,
        ];
    }

    /**
     * @internal
     */
    final public function serialize(): string
    {
        throw new \BadMethodCallException('Cannot serialize '.__CLASS__);
    }

    public function __unserialize(array $data): void
    {
        $this->path = $data['path'];
        $this->host = $data['host'];
        $this->defaults = $data['defaults'];
        $this->requirements = $data['requirements'];
        $this->options = $data['options'];
        $this->schemes = $data['schemes'];
        $this->methods = $data['methods'];

        if (isset($data['condition'])) {
            $this->condition = $data['condition'];
        }
        if (isset($data['compiled'])) {
            $this->compiled = $data['compiled'];
        }
    }

    /**
     * @internal
     */
    final public function unserialize(string $serialized)
    {
        $this->__unserialize(unserialize($serialized));
    }

    public function getPath(): string
    {
        return $this->path;
    }

    /**
     * @return $this
     */
    public function setPath(string $pattern): static
    {
        $pattern = $this->extractInlineDefaultsAndRequirements($pattern);

        // A pattern must start with a slash and must not have multiple slashes at the beginning because the
        // generated path for this route would be confused with a network path, e.g. '//domain.com/path'.
        $this->path = '/'.ltrim(trim($pattern), '/');
        $this->compiled = null;

        return $this;
    }

    public function getHost(): string
    {
        return $this->host;
    }

    /**
     * @return $this
     */
    public function setHost(?string $pattern): static
    {
        $this->host = $this->extractInlineDefaultsAndRequirements((string) $pattern);
        $this->compiled = null;

        return $this;
    }

    /**
     * Returns the lowercased schemes this route is restricted to.
     * So an empty array means that any scheme is allowed.
     *
     * @return string[]
     */
    public function getSchemes(): array
    {
        return $this->schemes;
    }

    /**
     * Sets the schemes (e.g. 'https') this route is restricted to.
     * So an empty array means that any scheme is allowed.
     *
     * @param string|string[] $schemes The scheme or an array of schemes
     *
     * @return $this
     */
    public function setSchemes(string|array $schemes): static
    {
        $this->schemes = array_map('strtolower', (array) $schemes);
        $this->compiled = null;

        return $this;
    }

    /**
     * Checks if a scheme requirement has been set.
     */
    public function hasScheme(string $scheme): bool
    {
        return \in_array(strtolower($scheme), $this->schemes, true);
    }

    /**
     * Returns the uppercased HTTP methods this route is restricted to.
     * So an empty array means that any method is allowed.
     *
     * @return string[]
     */
    public function getMethods(): array
    {
        return $this->methods;
    }

    /**
     * Sets the HTTP methods (e.g. 'POST') this route is restricted to.
     * So an empty array means that any method is allowed.
     *
     * @param string|string[] $methods The method or an array of methods
     *
     * @return $this
     */
    public function setMethods(string|array $methods): static
    {
        $this->methods = array_map('strtoupper', (array) $methods);
        $this->compiled = null;

        return $this;
    }

    public function getOptions(): array
    {
        return $this->options;
    }

    /**
     * @return $this
     */
    public function setOptions(array $options): static
    {
        $this->options = [
            'compiler_class' => 'Symfony\\Component\\Routing\\RouteCompiler',
        ];

        return $this->addOptions($options);
    }

    /**
     * @return $this
     */
    public function addOptions(array $options): static
    {
        foreach ($options as $name => $option) {
            $this->options[$name] = $option;
        }
        $this->compiled = null;

        return $this;
    }

    /**
     * Sets an option value.
     *
     * @return $this
     */
    public function setOption(string $name, mixed $value): static
    {
        $this->options[$name] = $value;
        $this->compiled = null;

        return $this;
    }

    /**
     * Returns the option value or null when not found.
     */
    public function getOption(string $name): mixed
    {
        return $this->options[$name] ?? null;
    }

    public function hasOption(string $name): bool
    {
        return \array_key_exists($name, $this->options);
    }

    public function getDefaults(): array
    {
        return $this->defaults;
    }

    /**
     * @return $this
     */
    public function setDefaults(array $defaults): static
    {
        $this->defaults = [];

        return $this->addDefaults($defaults);
    }

    /**
     * @return $this
     */
    public function addDefaults(array $defaults): static
    {
        if (isset($defaults['_locale']) && $this->isLocalized()) {
            unset($defaults['_locale']);
        }

        foreach ($defaults as $name => $default) {
            $this->defaults[$name] = $default;
        }
        $this->compiled = null;

        return $this;
    }

    public function getDefault(string $name): mixed
    {
        return $this->defaults[$name] ?? null;
    }

    public function hasDefault(string $name): bool
    {
        return \array_key_exists($name, $this->defaults);
    }

    /**
     * @return $this
     */
    public function setDefault(string $name, mixed $default): static
    {
        if ('_locale' === $name && $this->isLocalized()) {
            return $this;
        }

        $this->defaults[$name] = $default;
        $this->compiled = null;

        return $this;
    }

    public function getRequirements(): array
    {
        return $this->requirements;
    }

    /**
     * @return $this
     */
    public function setRequirements(array $requirements): static
    {
        $this->requirements = [];

        return $this->addRequirements($requirements);
    }

    /**
     * @return $this
     */
    public function addRequirements(array $requirements): static
    {
        if (isset($requirements['_locale']) && $this->isLocalized()) {
            unset($requirements['_locale']);
        }

        foreach ($requirements as $key => $regex) {
            $this->requirements[$key] = $this->sanitizeRequirement($key, $regex);
        }
        $this->compiled = null;

        return $this;
    }

    public function getRequirement(string $key): ?string
    {
        return $this->requirements[$key] ?? null;
    }

    public function hasRequirement(string $key): bool
    {
        return \array_key_exists($key, $this->requirements);
    }

    /**
     * @return $this
     */
    public function setRequirement(string $key, string $regex): static
    {
        if ('_locale' === $key && $this->isLocalized()) {
            return $this;
        }

        $this->requirements[$key] = $this->sanitizeRequirement($key, $regex);
        $this->compiled = null;

        return $this;
    }

    public function getCondition(): string
    {
        return $this->condition;
    }

    /**
     * @return $this
     */
    public function setCondition(?string $condition): static
    {
        $this->condition = (string) $condition;
        $this->compiled = null;

        return $this;
    }

    /**
     * Compiles the route.
     *
     * @throws \LogicException If the Route cannot be compiled because the
     *                         path or host pattern is invalid
     *
     * @see RouteCompiler which is responsible for the compilation process
     */
    public function compile(): CompiledRoute
    {
        if (null !== $this->compiled) {
            return $this->compiled;
        }

        $class = $this->getOption('compiler_class');

        return $this->compiled = $class::compile($this);
    }

    private function extractInlineDefaultsAndRequirements(string $pattern): string
    {
        if (false === strpbrk($pattern, '?<')) {
            return $pattern;
        }

        return preg_replace_callback('#\{(!?)(\w++)(<.*?>)?(\?[^\}]*+)?\}#', function ($m) {
            if (isset($m[4][0])) {
                $this->setDefault($m[2], '?' !== $m[4] ? substr($m[4], 1) : null);
            }
            if (isset($m[3][0])) {
                $this->setRequirement($m[2], substr($m[3], 1, -1));
            }

            return '{'.$m[1].$m[2].'}';
        }, $pattern);
    }

    private function sanitizeRequirement(string $key, string $regex)
    {
        if ('' !== $regex) {
            if ('^' === $regex[0]) {
                $regex = substr($regex, 1);
            } elseif (0 === strpos($regex, '\\A')) {
                $regex = substr($regex, 2);
            }
        }

        if (str_ends_with($regex, '$')) {
            $regex = substr($regex, 0, -1);
        } elseif (\strlen($regex) - 2 === strpos($regex, '\\z')) {
            $regex = substr($regex, 0, -2);
        }

        if ('' === $regex) {
            throw new \InvalidArgumentException(sprintf('Routing requirement for "%s" cannot be empty.', $key));
        }

        return $regex;
    }

    private function isLocalized(): bool
    {
        return isset($this->defaults['_locale']) && isset($this->defaults['_canonical_route']) && ($this->requirements['_locale'] ?? null) === preg_quote($this->defaults['_locale']);
    }
}

• [D] Annotation
• [D] DependencyInjection
• [D] Exception
• [D] Generator
• [D] Loader
• [D] Matcher
• [F] Alias.php
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• [F] CHANGELOG.md
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• [F] CompiledRoute.php
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• [F] composer.json
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• [F] LICENSE
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• [F] README.md
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• [F] RequestContext.php
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• [F] RequestContextAwareInterface.php
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• [F] Route.php
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• [F] RouteCollection.php
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• [F] RouteCompiler.php
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• [F] RouteCompilerInterface.php
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• [F] Router.php
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• [F] RouterInterface.php
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As digital transactions proliferate, ensuring robust payment security is more critical than ever. Two foundational technologies that are pivotal in this effort are encryption and tokenization.
Encryption is a process that transforms data into a secure format, known as ciphertext, which can only be deciphered using a specific decryption key. This means that even if data is intercepted during transmission, it remains unreadable and protected from unauthorized access. Encryption is essential in safeguarding sensitive payment information, such as credit card details and personal data, during online transactions.
Tokenization, on the other hand, involves substituting sensitive data with unique identifiers or "tokens." These tokens serve as placeholders and have no value outside of the specific transaction context. If intercepted, tokens are meaningless and cannot be used to access the original sensitive data. This method significantly reduces the risk of fraud and data breaches, as the actual payment information is not stored or transmitted.
Together, encryption and tokenization form a powerful security framework. Encryption ensures that data is protected during transmission, while tokenization minimizes the risk of exposing sensitive information by replacing it with secure, non-sensitive tokens.
These technologies are integral to modern payment platforms, providing a robust defense against cyber threats. By implementing advanced encryption and tokenization techniques, businesses can enhance the security of digital transactions, ensuring that users' financial and personal information remains safe. This comprehensive approach not only builds user trust but also fortifies the overall security infrastructure of digital payment systems. As cyber threats evolve, the continued advancement of encryption and tokenization will be crucial in maintaining secure and reliable payment processes.

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