fake_twitter /lib/Cake/Routing/Route/CakeRoute.php

Language PHP Lines 514
MD5 Hash 6177b011000cbfb9117053b5954d556d Estimated Cost $8,167 (why?)
Repository https://bitbucket.org/udeshika/fake_twitter View Raw File View Project SPDX
  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
<?php
/**
 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
 * Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
 *
 * Licensed under The MIT License
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright 2005-2011, Cake Software Foundation, Inc. (http://cakefoundation.org)
 * @link          http://cakephp.org CakePHP(tm) Project
 * @since         CakePHP(tm) v 1.3
 * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
 */

App::uses('Set', 'Utility');

/**
 * A single Route used by the Router to connect requests to
 * parameter maps.
 *
 * Not normally created as a standalone.  Use Router::connect() to create
 * Routes for your application.
 *
 * @package Cake.Routing.Route
 */
class CakeRoute {

/**
 * An array of named segments in a Route.
 * `/:controller/:action/:id` has 3 key elements
 *
 * @var array
 */
	public $keys = array();

/**
 * An array of additional parameters for the Route.
 *
 * @var array
 */
	public $options = array();

/**
 * Default parameters for a Route
 *
 * @var array
 */
	public $defaults = array();

/**
 * The routes template string.
 *
 * @var string
 */
	public $template = null;

/**
 * Is this route a greedy route?  Greedy routes have a `/*` in their
 * template
 *
 * @var string
 */
	protected $_greedy = false;

/**
 * The compiled route regular expression
 *
 * @var string
 */
	protected $_compiledRoute = null;

/**
 * HTTP header shortcut map.  Used for evaluating header-based route expressions.
 *
 * @var array
 */
	protected $_headerMap = array(
		'type' => 'content_type',
		'method' => 'request_method',
		'server' => 'server_name'
	);

/**
 * Constructor for a Route
 *
 * @param string $template Template string with parameter placeholders
 * @param array $defaults Array of defaults for the route.
 * @param array $options Array of additional options for the Route
 */
	public function __construct($template, $defaults = array(), $options = array()) {
		$this->template = $template;
		$this->defaults = (array)$defaults;
		$this->options = (array)$options;
	}

/**
 * Check if a Route has been compiled into a regular expression.
 *
 * @return boolean
 */
	public function compiled() {
		return !empty($this->_compiledRoute);
	}

/**
 * Compiles the route's regular expression.  Modifies defaults property so all necessary keys are set
 * and populates $this->names with the named routing elements.
 *
 * @return array Returns a string regular expression of the compiled route.
 */
	public function compile() {
		if ($this->compiled()) {
			return $this->_compiledRoute;
		}
		$this->_writeRoute();
		return $this->_compiledRoute;
	}

/**
 * Builds a route regular expression.  Uses the template, defaults and options
 * properties to compile a regular expression that can be used to parse request strings.
 *
 * @return void
 */
	protected function _writeRoute() {
		if (empty($this->template) || ($this->template === '/')) {
			$this->_compiledRoute = '#^/*$#';
			$this->keys = array();
			return;
		}
		$route = $this->template;
		$names = $routeParams = array();
		$parsed = preg_quote($this->template, '#');

		preg_match_all('#:([A-Za-z0-9_-]+[A-Z0-9a-z])#', $route, $namedElements);
		foreach ($namedElements[1] as $i => $name) {
			$search = '\\' . $namedElements[0][$i];
			if (isset($this->options[$name])) {
				$option = null;
				if ($name !== 'plugin' && array_key_exists($name, $this->defaults)) {
					$option = '?';
				}
				$slashParam = '/\\' . $namedElements[0][$i];
				if (strpos($parsed, $slashParam) !== false) {
					$routeParams[$slashParam] = '(?:/(?P<' . $name . '>' . $this->options[$name] . ')' . $option . ')' . $option;
				} else {
					$routeParams[$search] = '(?:(?P<' . $name . '>' . $this->options[$name] . ')' . $option . ')' . $option;
				}
			} else {
				$routeParams[$search] = '(?:(?P<' . $name . '>[^/]+))';
			}
			$names[] = $name;
		}
		if (preg_match('#\/\*$#', $route)) {
			$parsed = preg_replace('#/\\\\\*$#', '(?:/(?P<_args_>.*))?', $parsed);
			$this->_greedy = true;
		}
		krsort($routeParams);
		$parsed = str_replace(array_keys($routeParams), array_values($routeParams), $parsed);
		$this->_compiledRoute = '#^' . $parsed . '[/]*$#';
		$this->keys = $names;

		//remove defaults that are also keys. They can cause match failures
		foreach ($this->keys as $key) {
			unset($this->defaults[$key]);
		}
	}

/**
 * Checks to see if the given URL can be parsed by this route.
 * If the route can be parsed an array of parameters will be returned; if not
 * false will be returned. String urls are parsed if they match a routes regular expression.
 *
 * @param string $url The url to attempt to parse.
 * @return mixed Boolean false on failure, otherwise an array or parameters
 */
	public function parse($url) {
		if (!$this->compiled()) {
			$this->compile();
		}
		if (!preg_match($this->_compiledRoute, $url, $route)) {
			return false;
		}
		foreach ($this->defaults as $key => $val) {
			if ($key[0] === '[' && preg_match('/^\[(\w+)\]$/', $key, $header)) {
				if (isset($this->_headerMap[$header[1]])) {
					$header = $this->_headerMap[$header[1]];
				} else {
					$header = 'http_' . $header[1];
				}
				$header = strtoupper($header);

				$val = (array)$val;
				$h = false;

				foreach ($val as $v) {
					if (env($header) === $v) {
						$h = true;
					}
				}
				if (!$h) {
					return false;
				}
			}
		}
		array_shift($route);
		$count = count($this->keys);
		for ($i = 0; $i <= $count; $i++) {
			unset($route[$i]);
		}
		$route['pass'] = $route['named'] = array();

		// Assign defaults, set passed args to pass
		foreach ($this->defaults as $key => $value) {
			if (isset($route[$key])) {
				continue;
			}
			if (is_integer($key)) {
				$route['pass'][] = $value;
				continue;
			}
			$route[$key] = $value;
		}

		if (isset($route['_args_'])) {
			list($pass, $named) = $this->_parseArgs($route['_args_'], $route);
			$route['pass'] = array_merge($route['pass'], $pass);
			$route['named'] = $named;
			unset($route['_args_']);
		}

		// restructure 'pass' key route params
		if (isset($this->options['pass'])) {
			$j = count($this->options['pass']);
			while ($j--) {
				if (isset($route[$this->options['pass'][$j]])) {
					array_unshift($route['pass'], $route[$this->options['pass'][$j]]);
				}
			}
		}
		return $route;
	}

/**
 * Parse passed and Named parameters into a list of passed args, and a hash of named parameters.
 * The local and global configuration for named parameters will be used.
 *
 * @param string $args A string with the passed & named params.  eg. /1/page:2
 * @param string $context The current route context, which should contain controller/action keys.
 * @return array Array of ($pass, $named)
 */
	protected function _parseArgs($args, $context) {
		$pass = $named = array();
		$args = explode('/', $args);

		$namedConfig = Router::namedConfig();
		$greedy = $namedConfig['greedyNamed'];
		$rules = $namedConfig['rules'];
		if (!empty($this->options['named'])) {
			$greedy = isset($this->options['greedyNamed']) && $this->options['greedyNamed'] === true;
			foreach ((array)$this->options['named'] as $key => $val) {
				if (is_numeric($key)) {
					$rules[$val] = true;
					continue;
				}
				$rules[$key] = $val;
			}
		}

		foreach ($args as $param) {
			if (empty($param) && $param !== '0' && $param !== 0) {
				continue;
			}

			$separatorIsPresent = strpos($param, $namedConfig['separator']) !== false;
			if ((!isset($this->options['named']) || !empty($this->options['named'])) && $separatorIsPresent) {
				list($key, $val) = explode($namedConfig['separator'], $param, 2);
				$val = rawurldecode($val);
				$hasRule = isset($rules[$key]);
				$passIt = (!$hasRule && !$greedy) || ($hasRule && !$this->_matchNamed($val, $rules[$key], $context));
				if ($passIt) {
					$pass[] = rawurldecode($param);
				} else {
					if (preg_match_all('/\[([A-Za-z0-9_-]+)?\]/', $key, $matches, PREG_SET_ORDER)) {
						$matches = array_reverse($matches);
						$parts = explode('[', $key);
						$key = array_shift($parts);
						$arr = $val;
						foreach ($matches as $match) {
							if (empty($match[1])) {
								$arr = array($arr);
							} else {
								$arr = array(
									$match[1] => $arr
								);
							}
						}
						$val = $arr;
					}
					$named = array_merge_recursive($named, array($key => $val));
				}
			} else {
				$pass[] = rawurldecode($param);
			}
		}
		return array($pass, $named);
	}

/**
 * Return true if a given named $param's $val matches a given $rule depending on $context. Currently implemented
 * rule types are controller, action and match that can be combined with each other.
 *
 * @param string $val The value of the named parameter
 * @param array $rule The rule(s) to apply, can also be a match string
 * @param string $context An array with additional context information (controller / action)
 * @return boolean
 */
	protected function _matchNamed($val, $rule, $context) {
		if ($rule === true || $rule === false) {
			return $rule;
		}
		if (is_string($rule)) {
			$rule = array('match' => $rule);
		}
		if (!is_array($rule)) {
			return false;
		}

		$controllerMatches = (
			!isset($rule['controller'], $context['controller']) ||
			in_array($context['controller'], (array)$rule['controller'])
		);
		if (!$controllerMatches) {
			return false;
		}
		$actionMatches = (
			!isset($rule['action'], $context['action']) ||
			in_array($context['action'], (array)$rule['action'])
		);
		if (!$actionMatches) {
			return false;
		}
		return (!isset($rule['match']) || preg_match('/' . $rule['match'] . '/', $val));
	}

/**
 * Apply persistent parameters to a url array. Persistent parameters are a special
 * key used during route creation to force route parameters to persist when omitted from
 * a url array.
 *
 * @param array $url The array to apply persistent parameters to.
 * @param array $params An array of persistent values to replace persistent ones.
 * @return array An array with persistent parameters applied.
 */
	public function persistParams($url, $params) {
		foreach ($this->options['persist'] as $persistKey) {
			if (array_key_exists($persistKey, $params) && !isset($url[$persistKey])) {
				$url[$persistKey] = $params[$persistKey];
			}
		}
		return $url;
	}

/**
 * Attempt to match a url array.  If the url matches the route parameters and settings, then
 * return a generated string url.  If the url doesn't match the route parameters, false will be returned.
 * This method handles the reverse routing or conversion of url arrays into string urls.
 *
 * @param array $url An array of parameters to check matching with.
 * @return mixed Either a string url for the parameters if they match or false.
 */
	public function match($url) {
		if (!$this->compiled()) {
			$this->compile();
		}
		$defaults = $this->defaults;

		if (isset($defaults['prefix'])) {
			$url['prefix'] = $defaults['prefix'];
		}

		//check that all the key names are in the url
		$keyNames = array_flip($this->keys);
		if (array_intersect_key($keyNames, $url) !== $keyNames) {
			return false;
		}

		// Missing defaults is a fail.
		if (array_diff_key($defaults, $url) !== array()) {
			return false;
		}

		$namedConfig = Router::namedConfig();
		$prefixes = Router::prefixes();
		$greedyNamed = $namedConfig['greedyNamed'];
		$allowedNamedParams = $namedConfig['rules'];

		$named = $pass = array();

		foreach ($url as $key => $value) {

			// keys that exist in the defaults and have different values is a match failure.
			$defaultExists = array_key_exists($key, $defaults);
			if ($defaultExists && $defaults[$key] != $value) {
				return false;
			} elseif ($defaultExists) {
				continue;
			}

			// If the key is a routed key, its not different yet.
			if (array_key_exists($key, $keyNames)) {
				continue;
			}

			// pull out passed args
			$numeric = is_numeric($key);
			if ($numeric && isset($defaults[$key]) && $defaults[$key] == $value) {
				continue;
			} elseif ($numeric) {
				$pass[] = $value;
				unset($url[$key]);
				continue;
			}

			// pull out named params if named params are greedy or a rule exists.
			if (
				($greedyNamed || isset($allowedNamedParams[$key])) &&
				($value !== false && $value !== null) &&
				(!in_array($key, $prefixes))
			) {
				$named[$key] = $value;
				continue;
			}

			// keys that don't exist are different.
			if (!$defaultExists && !empty($value)) {
				return false;
			}
		}

		//if a not a greedy route, no extra params are allowed.
		if (!$this->_greedy && (!empty($pass) || !empty($named))) {
			return false;
		}

		//check patterns for routed params
		if (!empty($this->options)) {
			foreach ($this->options as $key => $pattern) {
				if (array_key_exists($key, $url) && !preg_match('#^' . $pattern . '$#', $url[$key])) {
					return false;
				}
			}
		}
		return $this->_writeUrl(array_merge($url, compact('pass', 'named')));
	}

/**
 * Converts a matching route array into a url string. Composes the string url using the template
 * used to create the route.
 *
 * @param array $params The params to convert to a string url.
 * @return string Composed route string.
 */
	protected function _writeUrl($params) {
		if (isset($params['prefix'], $params['action'])) {
			$params['action'] = str_replace($params['prefix'] . '_', '', $params['action']);
			unset($params['prefix']);
		}

		if (is_array($params['pass'])) {
			$params['pass'] = implode('/', array_map('rawurlencode', $params['pass']));
		}

		$namedConfig = Router::namedConfig();
		$separator = $namedConfig['separator'];

		if (!empty($params['named']) && is_array($params['named'])) {
			$named = array();
			foreach ($params['named'] as $key => $value) {
				if (is_array($value)) {
					$flat = Set::flatten($value, '][');
					foreach ($flat as $namedKey => $namedValue) {
						$named[] = $key . "[$namedKey]" . $separator . rawurlencode($namedValue);
					}
				} else {
					$named[] = $key . $separator . rawurlencode($value);
				}
			}
			$params['pass'] = $params['pass'] . '/' . implode('/', $named);
		}
		$out = $this->template;

		$search = $replace = array();
		foreach ($this->keys as $key) {
			$string = null;
			if (isset($params[$key])) {
				$string = $params[$key];
			} elseif (strpos($out, $key) != strlen($out) - strlen($key)) {
				$key .= '/';
			}
			$search[] = ':' . $key;
			$replace[] = $string;
		}
		$out = str_replace($search, $replace, $out);

		if (strpos($this->template, '*')) {
			$out = str_replace('*', $params['pass'], $out);
		}
		$out = str_replace('//', '/', $out);
		return $out;
	}

}
Back to Top