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<?php |
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/** |
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* Phoole (PHP7.2+) |
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* |
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* @category Library |
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* @package Phoole\Route |
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* @copyright Copyright (c) 2019 Hong Zhang |
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*/ |
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declare(strict_types=1); |
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namespace Phoole\Route\Util; |
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/** |
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* Route |
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* |
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* @package Phoole\Route |
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*/ |
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class Route |
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{ |
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/** |
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* @var string[] |
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*/ |
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protected $methods; |
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/** |
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* @var string |
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*/ |
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protected $pattern; |
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/** |
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* @param string|string[] $method HTTP method[s] |
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* @param string $pattern URI pattern to match |
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* @param mixed $handler request handler |
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* @param array $defaults default parameters |
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* @throws \LogicException if pattern not right |
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*/ |
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public function __construct( |
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$method, |
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string $pattern, |
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$handler, |
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array $defaults = [] |
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) { |
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$this |
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->setPattern($pattern, $defaults) |
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->setMethods($method, $handler, $defaults); |
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} |
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/** |
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* Set route pattern |
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* |
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* @param string $pattern |
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* @param array &$defaults |
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* @return Route $this |
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* @throws \LogicException if pattern not right |
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*/ |
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public function setPattern(string $pattern, &$defaults): Route |
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{ |
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if ($this->validatePattern($pattern)) { |
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list($pattern, $params) = $this->extractDefaults($pattern); |
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$this->pattern = $pattern; |
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if (!empty($params)) { |
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$defaults = array_merge($params, $defaults); |
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} |
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} |
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return $this; |
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} |
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/** |
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* @return string |
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*/ |
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public function getPattern(): string |
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{ |
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return $this->pattern; |
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} |
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/** |
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* Set methods(with related handler/defaults) |
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* |
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* @param string|string[] $method |
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* @param mixed $handler |
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* @param array $defaults |
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* @return Route $this |
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*/ |
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public function setMethods($method, $handler, array $defaults): Route |
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{ |
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$methods = is_string($method) ? |
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preg_split('~[^A-Z]+~', strtoupper($method), -1, PREG_SPLIT_NO_EMPTY) : |
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array_map('strtoupper', $method); |
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foreach ($methods as $mth) { |
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$this->methods[$mth] = [$handler, $defaults]; |
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} |
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return $this; |
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} |
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/** |
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* Add new methods from another route |
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* |
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* @param Route $route another route |
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* @return Route $this |
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*/ |
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public function addMethods(Route $route): Route |
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{ |
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$this->methods = array_merge($this->methods, $route->getMethods()); |
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return $this; |
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} |
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/** |
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* @param array |
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*/ |
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public function getMethods(): array |
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{ |
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return $this->methods; |
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} |
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/** |
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* Validate the pattern |
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* |
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* @param string $pattern |
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* @return bool |
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* @throws \LogicException if not valid pattern |
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*/ |
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protected function validatePattern(string $pattern): bool |
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{ |
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if ( |
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!is_string($pattern) || |
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substr_count($pattern, '[') !== substr_count($pattern, ']') || |
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substr_count($pattern, '{') !== substr_count($pattern, '}') |
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) { |
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throw new \LogicException("Invalid route pattern '$pattern'"); |
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} |
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return true; |
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} |
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/** |
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* Extract default values from the pattern |
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* |
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* @param string $pattern |
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* @return array |
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*/ |
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protected function extractDefaults(string $pattern): array |
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{ |
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$vals = []; |
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$regex = '~\{([a-zA-Z][a-zA-Z0-9_]*+)[^\}]*(=[a-zA-Z0-9._]++)\}~'; |
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if (preg_match_all($regex, $pattern, $matches, \PREG_SET_ORDER)) { |
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$srch = $repl = []; |
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foreach ($matches as $m) { |
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$srch[] = $m[0]; |
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$repl[] = str_replace($m[2], '', $m[0]); |
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$vals[$m[1]] = substr($m[2], 1); |
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} |
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$pattern = str_replace($srch, $repl, $pattern); |
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} |
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return [$pattern, $vals]; |
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} |
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} |
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