1: <?php
  2: 
  3: /**
  4:  * This file is part of the Nette Framework (https://nette.org)
  5:  * Copyright (c) 2004 David Grudl (https://davidgrudl.com)
  6:  */
  7: 
  8: namespace Nette\Application\Routers;
  9: 
 10: use Nette;
 11: use Nette\Application;
 12: 
 13: 
 14: /**
 15:  * The bidirectional route for trivial routing via query parameters.
 16:  */
 17: class SimpleRouter implements Application\IRouter
 18: {
 19:     use Nette\SmartObject;
 20: 
 21:     const PRESENTER_KEY = 'presenter';
 22: 
 23:     const MODULE_KEY = 'module';
 24: 
 25:     /** @var string */
 26:     private $module = '';
 27: 
 28:     /** @var array */
 29:     private $defaults;
 30: 
 31:     /** @var int */
 32:     private $flags;
 33: 
 34: 
 35:     /**
 36:      * @param  array   default values
 37:      * @param  int     flags
 38:      */
 39:     public function __construct($defaults = [], $flags = 0)
 40:     {
 41:         if (is_string($defaults)) {
 42:             list($presenter, $action) = Nette\Application\Helpers::splitName($defaults);
 43:             if (!$presenter) {
 44:                 throw new Nette\InvalidArgumentException("Argument must be array or string in format Presenter:action, '$defaults' given.");
 45:             }
 46:             $defaults = [
 47:                 self::PRESENTER_KEY => $presenter,
 48:                 'action' => $action === '' ? Application\UI\Presenter::DEFAULT_ACTION : $action,
 49:             ];
 50:         }
 51: 
 52:         if (isset($defaults[self::MODULE_KEY])) {
 53:             $this->module = $defaults[self::MODULE_KEY] . ':';
 54:             unset($defaults[self::MODULE_KEY]);
 55:         }
 56: 
 57:         $this->defaults = $defaults;
 58:         $this->flags = $flags;
 59:         if ($flags & self::SECURED) {
 60:             trigger_error('IRouter::SECURED is deprecated, router by default keeps the used protocol.', E_USER_DEPRECATED);
 61:         }
 62:     }
 63: 
 64: 
 65:     /**
 66:      * Maps HTTP request to a Request object.
 67:      * @return Nette\Application\Request|null
 68:      */
 69:     public function match(Nette\Http\IRequest $httpRequest)
 70:     {
 71:         if ($httpRequest->getUrl()->getPathInfo() !== '') {
 72:             return null;
 73:         }
 74:         // combine with precedence: get, (post,) defaults
 75:         $params = $httpRequest->getQuery();
 76:         $params += $this->defaults;
 77: 
 78:         if (!isset($params[self::PRESENTER_KEY]) || !is_string($params[self::PRESENTER_KEY])) {
 79:             return null;
 80:         }
 81: 
 82:         $presenter = $this->module . $params[self::PRESENTER_KEY];
 83:         unset($params[self::PRESENTER_KEY]);
 84: 
 85:         return new Application\Request(
 86:             $presenter,
 87:             $httpRequest->getMethod(),
 88:             $params,
 89:             $httpRequest->getPost(),
 90:             $httpRequest->getFiles(),
 91:             [Application\Request::SECURED => $httpRequest->isSecured()]
 92:         );
 93:     }
 94: 
 95: 
 96:     /**
 97:      * Constructs absolute URL from Request object.
 98:      * @return string|null
 99:      */
100:     public function constructUrl(Application\Request $appRequest, Nette\Http\Url $refUrl)
101:     {
102:         if ($this->flags & self::ONE_WAY) {
103:             return null;
104:         }
105:         $params = $appRequest->getParameters();
106: 
107:         // presenter name
108:         $presenter = $appRequest->getPresenterName();
109:         if (strncmp($presenter, $this->module, strlen($this->module)) === 0) {
110:             $params[self::PRESENTER_KEY] = substr($presenter, strlen($this->module));
111:         } else {
112:             return null;
113:         }
114: 
115:         // remove default values; null values are retain
116:         foreach ($this->defaults as $key => $value) {
117:             if (isset($params[$key]) && $params[$key] == $value) { // intentionally ==
118:                 unset($params[$key]);
119:             }
120:         }
121: 
122:         $url = ($this->flags & self::SECURED ? 'https://' : $refUrl->getScheme() . '://') . $refUrl->getAuthority() . $refUrl->getPath();
123:         $sep = ini_get('arg_separator.input');
124:         $query = http_build_query($params, '', $sep ? $sep[0] : '&');
125:         if ($query != '') { // intentionally ==
126:             $url .= '?' . $query;
127:         }
128:         return $url;
129:     }
130: 
131: 
132:     /**
133:      * Returns default values.
134:      * @return array
135:      */
136:     public function getDefaults()
137:     {
138:         return $this->defaults;
139:     }
140: 
141: 
142:     /**
143:      * Returns flags.
144:      * @return int
145:      */
146:     public function getFlags()
147:     {
148:         return $this->flags;
149:     }
150: }
151: