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<?php |
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|
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namespace FastRoute\Dispatcher; |
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|
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use FastRoute\Dispatcher; |
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|
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abstract class RegexBasedAbstract implements Dispatcher |
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{ |
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/** @var mixed[][] */ |
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protected $staticRouteMap = []; |
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|
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/** @var mixed[] */ |
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protected $variableRouteData = []; |
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|
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/** |
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* @return mixed[] |
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*/ |
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abstract protected function dispatchVariableRoute($routeData, $uri); |
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|
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public function dispatch($httpMethod, $uri) |
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{ |
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if (isset($this->staticRouteMap[$httpMethod][$uri])) { |
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$handler = $this->staticRouteMap[$httpMethod][$uri]; |
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return [self::FOUND, $handler, []]; |
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} |
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|
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$varRouteData = $this->variableRouteData; |
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if (isset($varRouteData[$httpMethod])) { |
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$result = $this->dispatchVariableRoute($varRouteData[$httpMethod], $uri); |
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if ($result[0] === self::FOUND) { |
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return $result; |
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} |
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} |
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|
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// For HEAD requests, attempt fallback to GET |
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if ($httpMethod === 'HEAD') { |
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if (isset($this->staticRouteMap['GET'][$uri])) { |
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$handler = $this->staticRouteMap['GET'][$uri]; |
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return [self::FOUND, $handler, []]; |
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} |
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if (isset($varRouteData['GET'])) { |
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$result = $this->dispatchVariableRoute($varRouteData['GET'], $uri); |
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if ($result[0] === self::FOUND) { |
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return $result; |
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} |
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} |
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} |
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|
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// If nothing else matches, try fallback routes |
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if (isset($this->staticRouteMap['*'][$uri])) { |
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$handler = $this->staticRouteMap['*'][$uri]; |
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return [self::FOUND, $handler, []]; |
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} |
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if (isset($varRouteData['*'])) { |
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$result = $this->dispatchVariableRoute($varRouteData['*'], $uri); |
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if ($result[0] === self::FOUND) { |
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return $result; |
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} |
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} |
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|
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// Find allowed methods for this URI by matching against all other HTTP methods as well |
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$allowedMethods = []; |
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|
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foreach ($this->staticRouteMap as $method => $uriMap) { |
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if ($method !== $httpMethod && isset($uriMap[$uri])) { |
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$allowedMethods[] = $method; |
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} |
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} |
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|
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foreach ($varRouteData as $method => $routeData) { |
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if ($method === $httpMethod) { |
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continue; |
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} |
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|
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$result = $this->dispatchVariableRoute($routeData, $uri); |
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if ($result[0] === self::FOUND) { |
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$allowedMethods[] = $method; |
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} |
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} |
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|
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// If there are no allowed methods the route simply does not exist |
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if ($allowedMethods) { |
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return [self::METHOD_NOT_ALLOWED, $allowedMethods]; |
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} |
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|
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return [self::NOT_FOUND]; |
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} |
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} |
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|
