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  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: use Nette\Utils\Strings;
 13: 
 14: 
 15: /**
 16:  * The bidirectional route is responsible for mapping
 17:  * HTTP request to a Request object for dispatch and vice-versa.
 18:  */
 19: class Route extends Nette\Object implements Application\IRouter
 20: {
 21:     const PRESENTER_KEY = 'presenter';
 22:     const MODULE_KEY = 'module';
 23: 
 24:     /** @deprecated */
 25:     const CASE_SENSITIVE = 256;
 26: 
 27:     /** @internal url type */
 28:     const HOST = 1,
 29:         PATH = 2,
 30:         RELATIVE = 3;
 31: 
 32:     /** key used in {@link Route::$styles} or metadata {@link Route::__construct} */
 33:     const VALUE = 'value';
 34:     const PATTERN = 'pattern';
 35:     const FILTER_IN = 'filterIn';
 36:     const FILTER_OUT = 'filterOut';
 37:     const FILTER_TABLE = 'filterTable';
 38:     const FILTER_STRICT = 'filterStrict';
 39: 
 40:     /** @internal fixity types - how to handle default value? {@link Route::$metadata} */
 41:     const OPTIONAL = 0,
 42:         PATH_OPTIONAL = 1,
 43:         CONSTANT = 2;
 44: 
 45:     /** @var int */
 46:     public static $defaultFlags = 0;
 47: 
 48:     /** @var array */
 49:     public static $styles = array(
 50:         '#' => array( // default style for path parameters
 51:             self::PATTERN => '[^/]+',
 52:             self::FILTER_OUT => array(__CLASS__, 'param2path'),
 53:         ),
 54:         '?#' => array( // default style for query parameters
 55:         ),
 56:         'module' => array(
 57:             self::PATTERN => '[a-z][a-z0-9.-]*',
 58:             self::FILTER_IN => array(__CLASS__, 'path2presenter'),
 59:             self::FILTER_OUT => array(__CLASS__, 'presenter2path'),
 60:         ),
 61:         'presenter' => array(
 62:             self::PATTERN => '[a-z][a-z0-9.-]*',
 63:             self::FILTER_IN => array(__CLASS__, 'path2presenter'),
 64:             self::FILTER_OUT => array(__CLASS__, 'presenter2path'),
 65:         ),
 66:         'action' => array(
 67:             self::PATTERN => '[a-z][a-z0-9-]*',
 68:             self::FILTER_IN => array(__CLASS__, 'path2action'),
 69:             self::FILTER_OUT => array(__CLASS__, 'action2path'),
 70:         ),
 71:         '?module' => array(
 72:         ),
 73:         '?presenter' => array(
 74:         ),
 75:         '?action' => array(
 76:         ),
 77:     );
 78: 
 79:     /** @var string */
 80:     private $mask;
 81: 
 82:     /** @var array */
 83:     private $sequence;
 84: 
 85:     /** @var string  regular expression pattern */
 86:     private $re;
 87: 
 88:     /** @var string[]  parameter aliases in regular expression */
 89:     private $aliases;
 90: 
 91:     /** @var array of [value & fixity, filterIn, filterOut] */
 92:     private $metadata = array();
 93: 
 94:     /** @var array  */
 95:     private $xlat;
 96: 
 97:     /** @var int HOST, PATH, RELATIVE */
 98:     private $type;
 99: 
100:     /** @var int */
101:     private $flags;
102: 
103:     /** @var Nette\Http\Url */
104:     private $lastRefUrl;
105: 
106:     /** @var string */
107:     private $lastBaseUrl;
108: 
109: 
110:     /**
111:      * @param  string  URL mask, e.g. '<presenter>/<action>/<id \d{1,3}>'
112:      * @param  array|string|\Closure  default values or metadata or callback for NetteModule\MicroPresenter
113:      * @param  int     flags
114:      */
115:     public function __construct($mask, $metadata = array(), $flags = 0)
116:     {
117:         if (is_string($metadata)) {
118:             $a = strrpos($tmp = $metadata, ':');
119:             if (!$a) {
120:                 throw new Nette\InvalidArgumentException("Second argument must be array or string in format Presenter:action, '$metadata' given.");
121:             }
122:             $metadata = array(self::PRESENTER_KEY => substr($tmp, 0, $a));
123:             if ($a < strlen($tmp) - 1) {
124:                 $metadata['action'] = substr($tmp, $a + 1);
125:             }
126:         } elseif ($metadata instanceof \Closure || $metadata instanceof Nette\Callback) {
127:             $metadata = array(
128:                 self::PRESENTER_KEY => 'Nette:Micro',
129:                 'callback' => $metadata,
130:             );
131:         }
132: 
133:         $this->flags = $flags | static::$defaultFlags;
134:         $this->setMask($mask, $metadata);
135:     }
136: 
137: 
138:     /**
139:      * Maps HTTP request to a Request object.
140:      * @return Nette\Application\Request|NULL
141:      */
142:     public function match(Nette\Http\IRequest $httpRequest)
143:     {
144:         // combine with precedence: mask (params in URL-path), fixity, query, (post,) defaults
145: 
146:         // 1) URL MASK
147:         $url = $httpRequest->getUrl();
148:         $re = $this->re;
149: 
150:         if ($this->type === self::HOST) {
151:             $host = $url->getHost();
152:             $path = '//' . $host . $url->getPath();
153:             $host = ip2long($host) ? array($host) : array_reverse(explode('.', $host));
154:             $re = strtr($re, array(
155:                 '/%basePath%/' => preg_quote($url->getBasePath(), '#'),
156:                 '%tld%' => preg_quote($host[0], '#'),
157:                 '%domain%' => preg_quote(isset($host[1]) ? "$host[1].$host[0]" : $host[0], '#'),
158:             ));
159: 
160:         } elseif ($this->type === self::RELATIVE) {
161:             $basePath = $url->getBasePath();
162:             if (strncmp($url->getPath(), $basePath, strlen($basePath)) !== 0) {
163:                 return NULL;
164:             }
165:             $path = (string) substr($url->getPath(), strlen($basePath));
166: 
167:         } else {
168:             $path = $url->getPath();
169:         }
170: 
171:         if ($path !== '') {
172:             $path = rtrim(rawurldecode($path), '/') . '/';
173:         }
174: 
175:         if (!$matches = Strings::match($path, $re)) {
176:             // stop, not matched
177:             return NULL;
178:         }
179: 
180:         // assigns matched values to parameters
181:         $params = array();
182:         foreach ($matches as $k => $v) {
183:             if (is_string($k) && $v !== '') {
184:                 $params[$this->aliases[$k]] = $v;
185:             }
186:         }
187: 
188: 
189:         // 2) CONSTANT FIXITY
190:         foreach ($this->metadata as $name => $meta) {
191:             if (!isset($params[$name]) && isset($meta['fixity']) && $meta['fixity'] !== self::OPTIONAL) {
192:                 $params[$name] = NULL; // cannot be overwriten in 3) and detected by isset() in 4)
193:             }
194:         }
195: 
196: 
197:         // 3) QUERY
198:         if ($this->xlat) {
199:             $params += self::renameKeys($httpRequest->getQuery(), array_flip($this->xlat));
200:         } else {
201:             $params += $httpRequest->getQuery();
202:         }
203: 
204: 
205:         // 4) APPLY FILTERS & FIXITY
206:         foreach ($this->metadata as $name => $meta) {
207:             if (isset($params[$name])) {
208:                 if (!is_scalar($params[$name])) {
209: 
210:                 } elseif (isset($meta[self::FILTER_TABLE][$params[$name]])) { // applies filterTable only to scalar parameters
211:                     $params[$name] = $meta[self::FILTER_TABLE][$params[$name]];
212: 
213:                 } elseif (isset($meta[self::FILTER_TABLE]) && !empty($meta[self::FILTER_STRICT])) {
214:                     return NULL; // rejected by filterTable
215: 
216:                 } elseif (isset($meta[self::FILTER_IN])) { // applies filterIn only to scalar parameters
217:                     $params[$name] = call_user_func($meta[self::FILTER_IN], (string) $params[$name]);
218:                     if ($params[$name] === NULL && !isset($meta['fixity'])) {
219:                         return NULL; // rejected by filter
220:                     }
221:                 }
222: 
223:             } elseif (isset($meta['fixity'])) {
224:                 $params[$name] = $meta[self::VALUE];
225:             }
226:         }
227: 
228:         if (isset($this->metadata[NULL][self::FILTER_IN])) {
229:             $params = call_user_func($this->metadata[NULL][self::FILTER_IN], $params);
230:             if ($params === NULL) {
231:                 return NULL;
232:             }
233:         }
234: 
235:         // 5) BUILD Request
236:         if (!isset($params[self::PRESENTER_KEY])) {
237:             throw new Nette\InvalidStateException('Missing presenter in route definition.');
238:         } elseif (!is_string($params[self::PRESENTER_KEY])) {
239:             return NULL;
240:         }
241:         if (isset($this->metadata[self::MODULE_KEY])) {
242:             if (!isset($params[self::MODULE_KEY])) {
243:                 throw new Nette\InvalidStateException('Missing module in route definition.');
244:             }
245:             $presenter = $params[self::MODULE_KEY] . ':' . $params[self::PRESENTER_KEY];
246:             unset($params[self::MODULE_KEY], $params[self::PRESENTER_KEY]);
247: 
248:         } else {
249:             $presenter = $params[self::PRESENTER_KEY];
250:             unset($params[self::PRESENTER_KEY]);
251:         }
252: 
253:         return new Application\Request(
254:             $presenter,
255:             $httpRequest->getMethod(),
256:             $params,
257:             $httpRequest->getPost(),
258:             $httpRequest->getFiles(),
259:             array(Application\Request::SECURED => $httpRequest->isSecured())
260:         );
261:     }
262: 
263: 
264:     /**
265:      * Constructs absolute URL from Request object.
266:      * @return string|NULL
267:      */
268:     public function constructUrl(Application\Request $appRequest, Nette\Http\Url $refUrl)
269:     {
270:         if ($this->flags & self::ONE_WAY) {
271:             return NULL;
272:         }
273: 
274:         $params = $appRequest->getParameters();
275:         $metadata = $this->metadata;
276: 
277:         $presenter = $appRequest->getPresenterName();
278:         $params[self::PRESENTER_KEY] = $presenter;
279: 
280:         if (isset($metadata[NULL][self::FILTER_OUT])) {
281:             $params = call_user_func($metadata[NULL][self::FILTER_OUT], $params);
282:             if ($params === NULL) {
283:                 return NULL;
284:             }
285:         }
286: 
287:         if (isset($metadata[self::MODULE_KEY])) { // try split into module and [submodule:]presenter parts
288:             $module = $metadata[self::MODULE_KEY];
289:             if (isset($module['fixity']) && strncmp($presenter, $module[self::VALUE] . ':', strlen($module[self::VALUE]) + 1) === 0) {
290:                 $a = strlen($module[self::VALUE]);
291:             } else {
292:                 $a = strrpos($presenter, ':');
293:             }
294:             if ($a === FALSE) {
295:                 $params[self::MODULE_KEY] = '';
296:             } else {
297:                 $params[self::MODULE_KEY] = substr($presenter, 0, $a);
298:                 $params[self::PRESENTER_KEY] = substr($presenter, $a + 1);
299:             }
300:         }
301: 
302:         foreach ($metadata as $name => $meta) {
303:             if (!isset($params[$name])) {
304:                 continue; // retains NULL values
305:             }
306: 
307:             if (isset($meta['fixity'])) {
308:                 if ($params[$name] === FALSE) {
309:                     $params[$name] = '0';
310:                 } elseif (is_scalar($params[$name])) {
311:                     $params[$name] = (string) $params[$name];
312:                 }
313: 
314:                 if ($params[$name] === $meta[self::VALUE]) { // remove default values; NULL values are retain
315:                     unset($params[$name]);
316:                     continue;
317: 
318:                 } elseif ($meta['fixity'] === self::CONSTANT) {
319:                     return NULL; // missing or wrong parameter '$name'
320:                 }
321:             }
322: 
323:             if (is_scalar($params[$name]) && isset($meta['filterTable2'][$params[$name]])) {
324:                 $params[$name] = $meta['filterTable2'][$params[$name]];
325: 
326:             } elseif (isset($meta['filterTable2']) && !empty($meta[self::FILTER_STRICT])) {
327:                 return NULL;
328: 
329:             } elseif (isset($meta[self::FILTER_OUT])) {
330:                 $params[$name] = call_user_func($meta[self::FILTER_OUT], $params[$name]);
331:             }
332: 
333:             if (isset($meta[self::PATTERN]) && !preg_match($meta[self::PATTERN], rawurldecode($params[$name]))) {
334:                 return NULL; // pattern not match
335:             }
336:         }
337: 
338:         // compositing path
339:         $sequence = $this->sequence;
340:         $brackets = array();
341:         $required = NULL; // NULL for auto-optional
342:         $url = '';
343:         $i = count($sequence) - 1;
344:         do {
345:             $url = $sequence[$i] . $url;
346:             if ($i === 0) {
347:                 break;
348:             }
349:             $i--;
350: 
351:             $name = $sequence[$i]; $i--; // parameter name
352: 
353:             if ($name === ']') { // opening optional part
354:                 $brackets[] = $url;
355: 
356:             } elseif ($name[0] === '[') { // closing optional part
357:                 $tmp = array_pop($brackets);
358:                 if ($required < count($brackets) + 1) { // is this level optional?
359:                     if ($name !== '[!') { // and not "required"-optional
360:                         $url = $tmp;
361:                     }
362:                 } else {
363:                     $required = count($brackets);
364:                 }
365: 
366:             } elseif ($name[0] === '?') { // "foo" parameter
367:                 continue;
368: 
369:             } elseif (isset($params[$name]) && $params[$name] != '') { // intentionally ==
370:                 $required = count($brackets); // make this level required
371:                 $url = $params[$name] . $url;
372:                 unset($params[$name]);
373: 
374:             } elseif (isset($metadata[$name]['fixity'])) { // has default value?
375:                 if ($required === NULL && !$brackets) { // auto-optional
376:                     $url = '';
377:                 } else {
378:                     $url = $metadata[$name]['defOut'] . $url;
379:                 }
380: 
381:             } else {
382:                 return NULL; // missing parameter '$name'
383:             }
384:         } while (TRUE);
385: 
386: 
387:         if ($this->type !== self::HOST) {
388:             if ($this->lastRefUrl !== $refUrl) {
389:                 $scheme = ($this->flags & self::SECURED ? 'https://' : 'http://');
390:                 $basePath = ($this->type === self::RELATIVE ? $refUrl->getBasePath() : '');
391:                 $this->lastBaseUrl = $scheme . $refUrl->getAuthority() . $basePath;
392:                 $this->lastRefUrl = $refUrl;
393:             }
394:             $url = $this->lastBaseUrl . $url;
395: 
396:         } else {
397:             $host = $refUrl->getHost();
398:             $host = ip2long($host) ? array($host) : array_reverse(explode('.', $host));
399:             $url = strtr($url, array(
400:                 '/%basePath%/' => $refUrl->getBasePath(),
401:                 '%tld%' => $host[0],
402:                 '%domain%' => isset($host[1]) ? "$host[1].$host[0]" : $host[0],
403:             ));
404:             $url = ($this->flags & self::SECURED ? 'https:' : 'http:') . $url;
405:         }
406: 
407:         if (strpos($url, '//', 7) !== FALSE) {
408:             return NULL;
409:         }
410: 
411:         // build query string
412:         if ($this->xlat) {
413:             $params = self::renameKeys($params, $this->xlat);
414:         }
415: 
416:         $sep = ini_get('arg_separator.input');
417:         $query = http_build_query($params, '', $sep ? $sep[0] : '&');
418:         if ($query != '') { // intentionally ==
419:             $url .= '?' . $query;
420:         }
421: 
422:         return $url;
423:     }
424: 
425: 
426:     /**
427:      * Parse mask and array of default values; initializes object.
428:      * @param  string
429:      * @param  array
430:      * @return void
431:      */
432:     private function setMask($mask, array $metadata)
433:     {
434:         $this->mask = $mask;
435: 
436:         // detect '//host/path' vs. '/abs. path' vs. 'relative path'
437:         if (substr($mask, 0, 2) === '//') {
438:             $this->type = self::HOST;
439: 
440:         } elseif (substr($mask, 0, 1) === '/') {
441:             $this->type = self::PATH;
442: 
443:         } else {
444:             $this->type = self::RELATIVE;
445:         }
446: 
447:         foreach ($metadata as $name => $meta) {
448:             if (!is_array($meta)) {
449:                 $metadata[$name] = $meta = array(self::VALUE => $meta);
450:             }
451: 
452:             if (array_key_exists(self::VALUE, $meta)) {
453:                 if (is_scalar($meta[self::VALUE])) {
454:                     $metadata[$name][self::VALUE] = (string) $meta[self::VALUE];
455:                 }
456:                 $metadata[$name]['fixity'] = self::CONSTANT;
457:             }
458:         }
459: 
460:         if (strpbrk($mask, '?<[') === FALSE) {
461:             $this->re = '#' . preg_quote($mask, '#') . '/?\z#A';
462:             $this->sequence = array($mask);
463:             $this->metadata = $metadata;
464:             return;
465:         }
466: 
467:         // PARSE MASK
468:         // <parameter-name[=default] [pattern] [#class]> or [ or ] or ?...
469:         $parts = Strings::split($mask, '/<([^>#= ]+)(=[^># ]*)? *([^>#]*)(#?[^>\[\]]*)>|(\[!?|\]|\s*\?.*)/');
470: 
471:         $this->xlat = array();
472:         $i = count($parts) - 1;
473: 
474:         // PARSE QUERY PART OF MASK
475:         if (isset($parts[$i - 1]) && substr(ltrim($parts[$i - 1]), 0, 1) === '?') {
476:             // name=<parameter-name [pattern][#class]>
477:             $matches = Strings::matchAll($parts[$i - 1], '/(?:([a-zA-Z0-9_.-]+)=)?<([^># ]+) *([^>#]*)(#?[^>]*)>/');
478: 
479:             foreach ($matches as $match) {
480:                 list(, $param, $name, $pattern, $class) = $match;  // $pattern is not used
481: 
482:                 if ($class !== '') {
483:                     if (!isset(static::$styles[$class])) {
484:                         throw new Nette\InvalidStateException("Parameter '$name' has '$class' flag, but Route::\$styles['$class'] is not set.");
485:                     }
486:                     $meta = static::$styles[$class];
487: 
488:                 } elseif (isset(static::$styles['?' . $name])) {
489:                     $meta = static::$styles['?' . $name];
490: 
491:                 } else {
492:                     $meta = static::$styles['?#'];
493:                 }
494: 
495:                 if (isset($metadata[$name])) {
496:                     $meta = $metadata[$name] + $meta;
497:                 }
498: 
499:                 if (array_key_exists(self::VALUE, $meta)) {
500:                     $meta['fixity'] = self::OPTIONAL;
501:                 }
502: 
503:                 unset($meta['pattern']);
504:                 $meta['filterTable2'] = empty($meta[self::FILTER_TABLE]) ? NULL : array_flip($meta[self::FILTER_TABLE]);
505: 
506:                 $metadata[$name] = $meta;
507:                 if ($param !== '') {
508:                     $this->xlat[$name] = $param;
509:                 }
510:             }
511:             $i -= 6;
512:         }
513: 
514:         // PARSE PATH PART OF MASK
515:         $brackets = 0; // optional level
516:         $re = '';
517:         $sequence = array();
518:         $autoOptional = TRUE;
519:         $aliases = array();
520:         do {
521:             array_unshift($sequence, $parts[$i]);
522:             $re = preg_quote($parts[$i], '#') . $re;
523:             if ($i === 0) {
524:                 break;
525:             }
526:             $i--;
527: 
528:             $part = $parts[$i]; // [ or ]
529:             if ($part === '[' || $part === ']' || $part === '[!') {
530:                 $brackets += $part[0] === '[' ? -1 : 1;
531:                 if ($brackets < 0) {
532:                     throw new Nette\InvalidArgumentException("Unexpected '$part' in mask '$mask'.");
533:                 }
534:                 array_unshift($sequence, $part);
535:                 $re = ($part[0] === '[' ? '(?:' : ')?') . $re;
536:                 $i -= 5;
537:                 continue;
538:             }
539: 
540:             $class = $parts[$i]; $i--; // validation class
541:             $pattern = trim($parts[$i]); $i--; // validation condition (as regexp)
542:             $default = $parts[$i]; $i--; // default value
543:             $name = $parts[$i]; $i--; // parameter name
544:             array_unshift($sequence, $name);
545: 
546:             if ($name[0] === '?') { // "foo" parameter
547:                 $name = substr($name, 1);
548:                 $re = $pattern ? '(?:' . preg_quote($name, '#') . "|$pattern)$re" : preg_quote($name, '#') . $re;
549:                 $sequence[1] = $name . $sequence[1];
550:                 continue;
551:             }
552: 
553:             // pattern, condition & metadata
554:             if ($class !== '') {
555:                 if (!isset(static::$styles[$class])) {
556:                     throw new Nette\InvalidStateException("Parameter '$name' has '$class' flag, but Route::\$styles['$class'] is not set.");
557:                 }
558:                 $meta = static::$styles[$class];
559: 
560:             } elseif (isset(static::$styles[$name])) {
561:                 $meta = static::$styles[$name];
562: 
563:             } else {
564:                 $meta = static::$styles['#'];
565:             }
566: 
567:             if (isset($metadata[$name])) {
568:                 $meta = $metadata[$name] + $meta;
569:             }
570: 
571:             if ($pattern == '' && isset($meta[self::PATTERN])) {
572:                 $pattern = $meta[self::PATTERN];
573:             }
574: 
575:             if ($default !== '') {
576:                 $meta[self::VALUE] = (string) substr($default, 1);
577:                 $meta['fixity'] = self::PATH_OPTIONAL;
578:             }
579: 
580:             $meta['filterTable2'] = empty($meta[self::FILTER_TABLE]) ? NULL : array_flip($meta[self::FILTER_TABLE]);
581:             if (array_key_exists(self::VALUE, $meta)) {
582:                 if (isset($meta['filterTable2'][$meta[self::VALUE]])) {
583:                     $meta['defOut'] = $meta['filterTable2'][$meta[self::VALUE]];
584: 
585:                 } elseif (isset($meta[self::FILTER_OUT])) {
586:                     $meta['defOut'] = call_user_func($meta[self::FILTER_OUT], $meta[self::VALUE]);
587: 
588:                 } else {
589:                     $meta['defOut'] = $meta[self::VALUE];
590:                 }
591:             }
592:             $meta[self::PATTERN] = "#(?:$pattern)\\z#A";
593: 
594:             // include in expression
595:             $aliases['p' . $i] = $name;
596:             $re = '(?P<p' . $i . '>(?U)' . $pattern . ')' . $re;
597:             if ($brackets) { // is in brackets?
598:                 if (!isset($meta[self::VALUE])) {
599:                     $meta[self::VALUE] = $meta['defOut'] = NULL;
600:                 }
601:                 $meta['fixity'] = self::PATH_OPTIONAL;
602: 
603:             } elseif (!$autoOptional) {
604:                 unset($meta['fixity']);
605: 
606:             } elseif (isset($meta['fixity'])) { // auto-optional
607:                 $re = '(?:' . $re . ')?';
608:                 $meta['fixity'] = self::PATH_OPTIONAL;
609: 
610:             } else {
611:                 $autoOptional = FALSE;
612:             }
613: 
614:             $metadata[$name] = $meta;
615:         } while (TRUE);
616: 
617:         if ($brackets) {
618:             throw new Nette\InvalidArgumentException("Missing closing ']' in mask '$mask'.");
619:         }
620: 
621:         $this->aliases = $aliases;
622:         $this->re = '#' . $re . '/?\z#A';
623:         $this->metadata = $metadata;
624:         $this->sequence = $sequence;
625:     }
626: 
627: 
628:     /**
629:      * Returns mask.
630:      * @return string
631:      */
632:     public function getMask()
633:     {
634:         return $this->mask;
635:     }
636: 
637: 
638:     /**
639:      * Returns default values.
640:      * @return array
641:      */
642:     public function getDefaults()
643:     {
644:         $defaults = array();
645:         foreach ($this->metadata as $name => $meta) {
646:             if (isset($meta['fixity'])) {
647:                 $defaults[$name] = $meta[self::VALUE];
648:             }
649:         }
650:         return $defaults;
651:     }
652: 
653: 
654:     /**
655:      * Returns flags.
656:      * @return int
657:      */
658:     public function getFlags()
659:     {
660:         return $this->flags;
661:     }
662: 
663: 
664:     /********************* Utilities ****************d*g**/
665: 
666: 
667:     /**
668:      * Proprietary cache aim.
669:      * @internal
670:      * @return string[]|NULL
671:      */
672:     public function getTargetPresenters()
673:     {
674:         if ($this->flags & self::ONE_WAY) {
675:             return array();
676:         }
677: 
678:         $m = $this->metadata;
679:         $module = '';
680: 
681:         if (isset($m[self::MODULE_KEY])) {
682:             if (isset($m[self::MODULE_KEY]['fixity']) && $m[self::MODULE_KEY]['fixity'] === self::CONSTANT) {
683:                 $module = $m[self::MODULE_KEY][self::VALUE] . ':';
684:             } else {
685:                 return NULL;
686:             }
687:         }
688: 
689:         if (isset($m[self::PRESENTER_KEY]['fixity']) && $m[self::PRESENTER_KEY]['fixity'] === self::CONSTANT) {
690:             return array($module . $m[self::PRESENTER_KEY][self::VALUE]);
691:         }
692:         return NULL;
693:     }
694: 
695: 
696:     /**
697:      * Rename keys in array.
698:      * @param  array
699:      * @param  array
700:      * @return array
701:      */
702:     private static function renameKeys($arr, $xlat)
703:     {
704:         if (empty($xlat)) {
705:             return $arr;
706:         }
707: 
708:         $res = array();
709:         $occupied = array_flip($xlat);
710:         foreach ($arr as $k => $v) {
711:             if (isset($xlat[$k])) {
712:                 $res[$xlat[$k]] = $v;
713: 
714:             } elseif (!isset($occupied[$k])) {
715:                 $res[$k] = $v;
716:             }
717:         }
718:         return $res;
719:     }
720: 
721: 
722:     /********************* Inflectors ****************d*g**/
723: 
724: 
725:     /**
726:      * camelCaseAction name -> dash-separated.
727:      * @param  string
728:      * @return string
729:      */
730:     private static function action2path($s)
731:     {
732:         $s = preg_replace('#(.)(?=[A-Z])#', '$1-', $s);
733:         $s = strtolower($s);
734:         $s = rawurlencode($s);
735:         return $s;
736:     }
737: 
738: 
739:     /**
740:      * dash-separated -> camelCaseAction name.
741:      * @param  string
742:      * @return string
743:      */
744:     private static function path2action($s)
745:     {
746:         $s = preg_replace('#-(?=[a-z])#', ' ', $s);
747:         $s = lcfirst(ucwords($s));
748:         $s = str_replace(' ', '', $s);
749:         return $s;
750:     }
751: 
752: 
753:     /**
754:      * PascalCase:Presenter name -> dash-and-dot-separated.
755:      * @param  string
756:      * @return string
757:      */
758:     private static function presenter2path($s)
759:     {
760:         $s = strtr($s, ':', '.');
761:         $s = preg_replace('#([^.])(?=[A-Z])#', '$1-', $s);
762:         $s = strtolower($s);
763:         $s = rawurlencode($s);
764:         return $s;
765:     }
766: 
767: 
768:     /**
769:      * dash-and-dot-separated -> PascalCase:Presenter name.
770:      * @param  string
771:      * @return string
772:      */
773:     private static function path2presenter($s)
774:     {
775:         $s = preg_replace('#([.-])(?=[a-z])#', '$1 ', $s);
776:         $s = ucwords($s);
777:         $s = str_replace('. ', ':', $s);
778:         $s = str_replace('- ', '', $s);
779:         return $s;
780:     }
781: 
782: 
783:     /**
784:      * Url encode.
785:      * @param  string
786:      * @return string
787:      */
788:     private static function param2path($s)
789:     {
790:         return str_replace('%2F', '/', rawurlencode($s));
791:     }
792: 
793: 
794:     /********************* Route::$styles manipulator ****************d*g**/
795: 
796: 
797:     /**
798:      * @deprecated
799:      */
800:     public static function addStyle($style, $parent = '#')
801:     {
802:         trigger_error(__METHOD__ . '() is deprecated.', E_USER_DEPRECATED);
803:         if (isset(static::$styles[$style])) {
804:             throw new Nette\InvalidArgumentException("Style '$style' already exists.");
805:         }
806: 
807:         if ($parent !== NULL) {
808:             if (!isset(static::$styles[$parent])) {
809:                 throw new Nette\InvalidArgumentException("Parent style '$parent' doesn't exist.");
810:             }
811:             static::$styles[$style] = static::$styles[$parent];
812: 
813:         } else {
814:             static::$styles[$style] = array();
815:         }
816:     }
817: 
818: 
819:     /**
820:      * @deprecated
821:      */
822:     public static function setStyleProperty($style, $key, $value)
823:     {
824:         trigger_error(__METHOD__ . '() is deprecated.', E_USER_DEPRECATED);
825:         if (!isset(static::$styles[$style])) {
826:             throw new Nette\InvalidArgumentException("Style '$style' doesn't exist.");
827:         }
828:         static::$styles[$style][$key] = $value;
829:     }
830: 
831: }
832: 
Nette 2.3.8 API API documentation generated by ApiGen 2.8.0