FM / Dumper

/var/www/flurhymez/vendor/symfony/routing/Matcher/Dumper/

/var/www/flurhymez/vendor/symfony/routing/Matcher/Dumper

Name	Size	Mode	Actions
CompiledUrlMatcherDumper.php	19019	0644	edit dl rm
CompiledUrlMatcherTrait.php	7614	0644	edit dl rm
MatcherDumper.php	775	0644	edit dl rm
MatcherDumperInterface.php	884	0644	edit dl rm
StaticPrefixCollection.php	7042	0644	edit dl rm

Edit: /var/www/flurhymez/vendor/symfony/routing/Matcher/Dumper/CompiledUrlMatcherDumper.php (19019B)

<?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\Matcher\Dumper;

use Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface;
use Symfony\Component\ExpressionLanguage\ExpressionLanguage;
use Symfony\Component\Routing\Route;
use Symfony\Component\Routing\RouteCollection;

/**
 * CompiledUrlMatcherDumper creates PHP arrays to be used with CompiledUrlMatcher.
 *
 * @author Fabien Potencier <fabien@symfony.com>
 * @author Tobias Schultze <http://tobion.de>
 * @author Arnaud Le Blanc <arnaud.lb@gmail.com>
 * @author Nicolas Grekas <p@tchwork.com>
 */
class CompiledUrlMatcherDumper extends MatcherDumper
{
    private $expressionLanguage;
    private $signalingException;

/**
     * @var ExpressionFunctionProviderInterface[]
     */
    private $expressionLanguageProviders = [];

/**
     * {@inheritdoc}
     */
    public function dump(array $options = [])
    {
        return <<<EOF
<?php

/**
 * This file has been auto-generated
 * by the Symfony Routing Component.
 */

return [
{$this->generateCompiledRoutes()}];

EOF;
    }

public function addExpressionLanguageProvider(ExpressionFunctionProviderInterface $provider)
    {
        $this->expressionLanguageProviders[] = $provider;
    }

/**
     * Generates the arrays for CompiledUrlMatcher's constructor.
     */
    public function getCompiledRoutes(bool $forDump = false): array
    {
        // Group hosts by same-suffix, re-order when possible
        $matchHost = false;
        $routes = new StaticPrefixCollection();
        foreach ($this->getRoutes()->all() as $name => $route) {
            if ($host = $route->getHost()) {
                $matchHost = true;
                $host = '/'.strtr(strrev($host), '}.{', '(/)');
            }

$routes->addRoute($host ?: '/(.*)', [$name, $route]);
        }

if ($matchHost) {
            $compiledRoutes = [true];
            $routes = $routes->populateCollection(new RouteCollection());
        } else {
            $compiledRoutes = [false];
            $routes = $this->getRoutes();
        }

[$staticRoutes, $dynamicRoutes] = $this->groupStaticRoutes($routes);

$conditions = [null];
        $compiledRoutes[] = $this->compileStaticRoutes($staticRoutes, $conditions);
        $chunkLimit = \count($dynamicRoutes);

while (true) {
            try {
                $this->signalingException = new \RuntimeException('Compilation failed: regular expression is too large');
                $compiledRoutes = array_merge($compiledRoutes, $this->compileDynamicRoutes($dynamicRoutes, $matchHost, $chunkLimit, $conditions));

break;
            } catch (\Exception $e) {
                if (1 < $chunkLimit && $this->signalingException === $e) {
                    $chunkLimit = 1 + ($chunkLimit >> 1);
                    continue;
                }
                throw $e;
            }
        }

if ($forDump) {
            $compiledRoutes[2] = $compiledRoutes[4];
        }
        unset($conditions[0]);

if ($conditions) {
            foreach ($conditions as $expression => $condition) {
                $conditions[$expression] = "case {$condition}: return {$expression};";
            }

$checkConditionCode = <<<EOF
    static function (\$condition, \$context, \$request) { // \$checkCondition
        switch (\$condition) {
{$this->indent(implode("\n", $conditions), 3)}
        }
    }
EOF;
            $compiledRoutes[4] = $forDump ? $checkConditionCode.",\n" : eval('return '.$checkConditionCode.';');
        } else {
            $compiledRoutes[4] = $forDump ? "    null, // \$checkCondition\n" : null;
        }

return $compiledRoutes;
    }

private function generateCompiledRoutes(): string
    {
        [$matchHost, $staticRoutes, $regexpCode, $dynamicRoutes, $checkConditionCode] = $this->getCompiledRoutes(true);

$code = self::export($matchHost).', // $matchHost'."\n";

$code .= '[ // $staticRoutes'."\n";
        foreach ($staticRoutes as $path => $routes) {
            $code .= sprintf("    %s => [\n", self::export($path));
            foreach ($routes as $route) {
                $code .= sprintf("        [%s, %s, %s, %s, %s, %s, %s],\n", ...array_map([__CLASS__, 'export'], $route));
            }
            $code .= "    ],\n";
        }
        $code .= "],\n";

$code .= sprintf("[ // \$regexpList%s\n],\n", $regexpCode);

$code .= '[ // $dynamicRoutes'."\n";
        foreach ($dynamicRoutes as $path => $routes) {
            $code .= sprintf("    %s => [\n", self::export($path));
            foreach ($routes as $route) {
                $code .= sprintf("        [%s, %s, %s, %s, %s, %s, %s],\n", ...array_map([__CLASS__, 'export'], $route));
            }
            $code .= "    ],\n";
        }
        $code .= "],\n";
        $code = preg_replace('/ => \[\n        (\[.+?),\n    \],/', ' => [$1],', $code);

return $this->indent($code, 1).$checkConditionCode;
    }

/**
     * Splits static routes from dynamic routes, so that they can be matched first, using a simple switch.
     */
    private function groupStaticRoutes(RouteCollection $collection): array
    {
        $staticRoutes = $dynamicRegex = [];
        $dynamicRoutes = new RouteCollection();

foreach ($collection->all() as $name => $route) {
            $compiledRoute = $route->compile();
            $staticPrefix = rtrim($compiledRoute->getStaticPrefix(), '/');
            $hostRegex = $compiledRoute->getHostRegex();
            $regex = $compiledRoute->getRegex();
            if ($hasTrailingSlash = '/' !== $route->getPath()) {
                $pos = strrpos($regex, '$');
                $hasTrailingSlash = '/' === $regex[$pos - 1];
                $regex = substr_replace($regex, '/?$', $pos - $hasTrailingSlash, 1 + $hasTrailingSlash);
            }

if (!$compiledRoute->getPathVariables()) {
                $host = !$compiledRoute->getHostVariables() ? $route->getHost() : '';
                $url = $route->getPath();
                if ($hasTrailingSlash) {
                    $url = substr($url, 0, -1);
                }
                foreach ($dynamicRegex as [$hostRx, $rx, $prefix]) {
                    if (('' === $prefix || str_starts_with($url, $prefix)) && (preg_match($rx, $url) || preg_match($rx, $url.'/')) && (!$host || !$hostRx || preg_match($hostRx, $host))) {
                        $dynamicRegex[] = [$hostRegex, $regex, $staticPrefix];
                        $dynamicRoutes->add($name, $route);
                        continue 2;
                    }
                }

$staticRoutes[$url][$name] = [$route, $hasTrailingSlash];
            } else {
                $dynamicRegex[] = [$hostRegex, $regex, $staticPrefix];
                $dynamicRoutes->add($name, $route);
            }
        }

return [$staticRoutes, $dynamicRoutes];
    }

/**
     * Compiles static routes in a switch statement.
     *
     * Condition-less paths are put in a static array in the switch's default, with generic matching logic.
     * Paths that can match two or more routes, or have user-specified conditions are put in separate switch's cases.
     *
     * @throws \LogicException
     */
    private function compileStaticRoutes(array $staticRoutes, array &$conditions): array
    {
        if (!$staticRoutes) {
            return [];
        }
        $compiledRoutes = [];

foreach ($staticRoutes as $url => $routes) {
            $compiledRoutes[$url] = [];
            foreach ($routes as $name => [$route, $hasTrailingSlash]) {
                $compiledRoutes[$url][] = $this->compileRoute($route, $name, (!$route->compile()->getHostVariables() ? $route->getHost() : $route->compile()->getHostRegex()) ?: null, $hasTrailingSlash, false, $conditions);
            }
        }

return $compiledRoutes;
    }

/**
     * Compiles a regular expression followed by a switch statement to match dynamic routes.
     *
     * The regular expression matches both the host and the pathinfo at the same time. For stellar performance,
     * it is built as a tree of patterns, with re-ordering logic to group same-prefix routes together when possible.
     *
     * Patterns are named so that we know which one matched (https://pcre.org/current/doc/html/pcre2syntax.html#SEC23).
     * This name is used to "switch" to the additional logic required to match the final route.
     *
     * Condition-less paths are put in a static array in the switch's default, with generic matching logic.
     * Paths that can match two or more routes, or have user-specified conditions are put in separate switch's cases.
     *
     * Last but not least:
     *  - Because it is not possible to mix unicode/non-unicode patterns in a single regexp, several of them can be generated.
     *  - The same regexp can be used several times when the logic in the switch rejects the match. When this happens, the
     *    matching-but-failing subpattern is excluded by replacing its name by "(*F)", which forces a failure-to-match.
     *    To ease this backlisting operation, the name of subpatterns is also the string offset where the replacement should occur.
     */
    private function compileDynamicRoutes(RouteCollection $collection, bool $matchHost, int $chunkLimit, array &$conditions): array
    {
        if (!$collection->all()) {
            return [[], [], ''];
        }
        $regexpList = [];
        $code = '';
        $state = (object) [
            'regexMark' => 0,
            'regex' => [],
            'routes' => [],
            'mark' => 0,
            'markTail' => 0,
            'hostVars' => [],
            'vars' => [],
        ];
        $state->getVars = static function ($m) use ($state) {
            if ('_route' === $m[1]) {
                return '?:';
            }

$state->vars[] = $m[1];

return '';
        };

$chunkSize = 0;
        $prev = null;
        $perModifiers = [];
        foreach ($collection->all() as $name => $route) {
            preg_match('#[a-zA-Z]*$#', $route->compile()->getRegex(), $rx);
            if ($chunkLimit < ++$chunkSize || $prev !== $rx[0] && $route->compile()->getPathVariables()) {
                $chunkSize = 1;
                $routes = new RouteCollection();
                $perModifiers[] = [$rx[0], $routes];
                $prev = $rx[0];
            }
            $routes->add($name, $route);
        }

foreach ($perModifiers as [$modifiers, $routes]) {
            $prev = false;
            $perHost = [];
            foreach ($routes->all() as $name => $route) {
                $regex = $route->compile()->getHostRegex();
                if ($prev !== $regex) {
                    $routes = new RouteCollection();
                    $perHost[] = [$regex, $routes];
                    $prev = $regex;
                }
                $routes->add($name, $route);
            }
            $prev = false;
            $rx = '{^(?';
            $code .= "\n    {$state->mark} => ".self::export($rx);
            $startingMark = $state->mark;
            $state->mark += \strlen($rx);
            $state->regex = $rx;

foreach ($perHost as [$hostRegex, $routes]) {
                if ($matchHost) {
                    if ($hostRegex) {
                        preg_match('#^.\^(.*)\$.[a-zA-Z]*$#', $hostRegex, $rx);
                        $state->vars = [];
                        $hostRegex = '(?i:'.preg_replace_callback('#\?P<([^>]++)>#', $state->getVars, $rx[1]).')\.';
                        $state->hostVars = $state->vars;
                    } else {
                        $hostRegex = '(?:(?:[^./]*+\.)++)';
                        $state->hostVars = [];
                    }
                    $state->mark += \strlen($rx = ($prev ? ')' : '')."|{$hostRegex}(?");
                    $code .= "\n        .".self::export($rx);
                    $state->regex .= $rx;
                    $prev = true;
                }

$tree = new StaticPrefixCollection();
                foreach ($routes->all() as $name => $route) {
                    preg_match('#^.\^(.*)\$.[a-zA-Z]*$#', $route->compile()->getRegex(), $rx);

$state->vars = [];
                    $regex = preg_replace_callback('#\?P<([^>]++)>#', $state->getVars, $rx[1]);
                    if ($hasTrailingSlash = '/' !== $regex && '/' === $regex[-1]) {
                        $regex = substr($regex, 0, -1);
                    }
                    $hasTrailingVar = (bool) preg_match('#\{\w+\}/?$#', $route->getPath());

$tree->addRoute($regex, [$name, $regex, $state->vars, $route, $hasTrailingSlash, $hasTrailingVar]);
                }

$code .= $this->compileStaticPrefixCollection($tree, $state, 0, $conditions);
            }
            if ($matchHost) {
                $code .= "\n        .')'";
                $state->regex .= ')';
            }
            $rx = ")/?$}{$modifiers}";
            $code .= "\n        .'{$rx}',";
            $state->regex .= $rx;
            $state->markTail = 0;

// if the regex is too large, throw a signaling exception to recompute with smaller chunk size
            set_error_handler(function ($type, $message) { throw str_contains($message, $this->signalingException->getMessage()) ? $this->signalingException : new \ErrorException($message); });
            try {
                preg_match($state->regex, '');
            } finally {
                restore_error_handler();
            }

$regexpList[$startingMark] = $state->regex;
        }

$state->routes[$state->mark][] = [null, null, null, null, false, false, 0];
        unset($state->getVars);

return [$regexpList, $state->routes, $code];
    }

/**
     * Compiles a regexp tree of subpatterns that matches nested same-prefix routes.
     *
     * @param \stdClass $state A simple state object that keeps track of the progress of the compilation,
     *                         and gathers the generated switch's "case" and "default" statements
     */
    private function compileStaticPrefixCollection(StaticPrefixCollection $tree, \stdClass $state, int $prefixLen, array &$conditions): string
    {
        $code = '';
        $prevRegex = null;
        $routes = $tree->getRoutes();

foreach ($routes as $i => $route) {
            if ($route instanceof StaticPrefixCollection) {
                $prevRegex = null;
                $prefix = substr($route->getPrefix(), $prefixLen);
                $state->mark += \strlen($rx = "|{$prefix}(?");
                $code .= "\n            .".self::export($rx);
                $state->regex .= $rx;
                $code .= $this->indent($this->compileStaticPrefixCollection($route, $state, $prefixLen + \strlen($prefix), $conditions));
                $code .= "\n            .')'";
                $state->regex .= ')';
                ++$state->markTail;
                continue;
            }

[$name, $regex, $vars, $route, $hasTrailingSlash, $hasTrailingVar] = $route;
            $compiledRoute = $route->compile();
            $vars = array_merge($state->hostVars, $vars);

if ($compiledRoute->getRegex() === $prevRegex) {
                $state->routes[$state->mark][] = $this->compileRoute($route, $name, $vars, $hasTrailingSlash, $hasTrailingVar, $conditions);
                continue;
            }

$state->mark += 3 + $state->markTail + \strlen($regex) - $prefixLen;
            $state->markTail = 2 + \strlen($state->mark);
            $rx = sprintf('|%s(*:%s)', substr($regex, $prefixLen), $state->mark);
            $code .= "\n            .".self::export($rx);
            $state->regex .= $rx;

$prevRegex = $compiledRoute->getRegex();
            $state->routes[$state->mark] = [$this->compileRoute($route, $name, $vars, $hasTrailingSlash, $hasTrailingVar, $conditions)];
        }

return $code;
    }

/**
     * Compiles a single Route to PHP code used to match it against the path info.
     */
    private function compileRoute(Route $route, string $name, $vars, bool $hasTrailingSlash, bool $hasTrailingVar, array &$conditions): array
    {
        $defaults = $route->getDefaults();

if (isset($defaults['_canonical_route'])) {
            $name = $defaults['_canonical_route'];
            unset($defaults['_canonical_route']);
        }

if ($condition = $route->getCondition()) {
            $condition = $this->getExpressionLanguage()->compile($condition, ['context', 'request']);
            $condition = $conditions[$condition] ?? $conditions[$condition] = (str_contains($condition, '$request') ? 1 : -1) * \count($conditions);
        } else {
            $condition = null;
        }

return [
            ['_route' => $name] + $defaults,
            $vars,
            array_flip($route->getMethods()) ?: null,
            array_flip($route->getSchemes()) ?: null,
            $hasTrailingSlash,
            $hasTrailingVar,
            $condition,
        ];
    }

private function getExpressionLanguage(): ExpressionLanguage
    {
        if (null === $this->expressionLanguage) {
            if (!class_exists(ExpressionLanguage::class)) {
                throw new \LogicException('Unable to use expressions as the Symfony ExpressionLanguage component is not installed.');
            }
            $this->expressionLanguage = new ExpressionLanguage(null, $this->expressionLanguageProviders);
        }

return $this->expressionLanguage;
    }

private function indent(string $code, int $level = 1): string
    {
        return preg_replace('/^./m', str_repeat('    ', $level).'$0', $code);
    }

/**
     * @internal
     */
    public static function export($value): string
    {
        if (null === $value) {
            return 'null';
        }
        if (!\is_array($value)) {
            if (\is_object($value)) {
                throw new \InvalidArgumentException('Symfony\Component\Routing\Route cannot contain objects.');
            }

return str_replace("\n", '\'."\n".\'', var_export($value, true));
        }
        if (!$value) {
            return '[]';
        }

$i = 0;
        $export = '[';

foreach ($value as $k => $v) {
            if ($i === $k) {
                ++$i;
            } else {
                $export .= self::export($k).' => ';

if (\is_int($k) && $i < $k) {
                    $i = 1 + $k;
                }
            }

$export .= self::export($v).', ';
        }

return substr_replace($export, ']', -2);
    }
}

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