1: <?php
2: /**
3: * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
4: * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
5: *
6: * Licensed under The MIT License
7: * For full copyright and license information, please see the LICENSE.txt
8: * Redistributions of files must retain the above copyright notice.
9: *
10: * @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
11: * @link http://cakephp.org CakePHP(tm) Project
12: * @package Cake.Utility
13: * @since CakePHP(tm) v 0.2.9
14: * @license http://www.opensource.org/licenses/mit-license.php MIT License
15: */
16:
17: /**
18: * Folder structure browser, lists folders and files.
19: * Provides an Object interface for Common directory related tasks.
20: *
21: * @package Cake.Utility
22: */
23: class Folder {
24:
25: /**
26: * Default scheme for Folder::copy
27: * Recursively merges subfolders with the same name
28: *
29: * @var string
30: */
31: const MERGE = 'merge';
32:
33: /**
34: * Overwrite scheme for Folder::copy
35: * subfolders with the same name will be replaced
36: *
37: * @var string
38: */
39: const OVERWRITE = 'overwrite';
40:
41: /**
42: * Skip scheme for Folder::copy
43: * if a subfolder with the same name exists it will be skipped
44: *
45: * @var string
46: */
47: const SKIP = 'skip';
48:
49: /**
50: * Path to Folder.
51: *
52: * @var string
53: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::$path
54: */
55: public $path = null;
56:
57: /**
58: * Sortedness. Whether or not list results
59: * should be sorted by name.
60: *
61: * @var boolean
62: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::$sort
63: */
64: public $sort = false;
65:
66: /**
67: * Mode to be used on create. Does nothing on windows platforms.
68: *
69: * @var integer
70: * http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::$mode
71: */
72: public $mode = 0755;
73:
74: /**
75: * Holds messages from last method.
76: *
77: * @var array
78: */
79: protected $_messages = array();
80:
81: /**
82: * Holds errors from last method.
83: *
84: * @var array
85: */
86: protected $_errors = array();
87:
88: /**
89: * Holds array of complete directory paths.
90: *
91: * @var array
92: */
93: protected $_directories;
94:
95: /**
96: * Holds array of complete file paths.
97: *
98: * @var array
99: */
100: protected $_files;
101:
102: /**
103: * Constructor.
104: *
105: * @param string $path Path to folder
106: * @param boolean $create Create folder if not found
107: * @param string|boolean $mode Mode (CHMOD) to apply to created folder, false to ignore
108: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder
109: */
110: public function __construct($path = false, $create = false, $mode = false) {
111: if (empty($path)) {
112: $path = TMP;
113: }
114: if ($mode) {
115: $this->mode = $mode;
116: }
117:
118: if (!file_exists($path) && $create === true) {
119: $this->create($path, $this->mode);
120: }
121: if (!Folder::isAbsolute($path)) {
122: $path = realpath($path);
123: }
124: if (!empty($path)) {
125: $this->cd($path);
126: }
127: }
128:
129: /**
130: * Return current path.
131: *
132: * @return string Current path
133: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::pwd
134: */
135: public function pwd() {
136: return $this->path;
137: }
138:
139: /**
140: * Change directory to $path.
141: *
142: * @param string $path Path to the directory to change to
143: * @return string The new path. Returns false on failure
144: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::cd
145: */
146: public function cd($path) {
147: $path = $this->realpath($path);
148: if (is_dir($path)) {
149: return $this->path = $path;
150: }
151: return false;
152: }
153:
154: /**
155: * Returns an array of the contents of the current directory.
156: * The returned array holds two arrays: One of directories and one of files.
157: *
158: * @param boolean $sort Whether you want the results sorted, set this and the sort property
159: * to false to get unsorted results.
160: * @param array|boolean $exceptions Either an array or boolean true will not grab dot files
161: * @param boolean $fullPath True returns the full path
162: * @return mixed Contents of current directory as an array, an empty array on failure
163: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::read
164: */
165: public function read($sort = true, $exceptions = false, $fullPath = false) {
166: $dirs = $files = array();
167:
168: if (!$this->pwd()) {
169: return array($dirs, $files);
170: }
171: if (is_array($exceptions)) {
172: $exceptions = array_flip($exceptions);
173: }
174: $skipHidden = isset($exceptions['.']) || $exceptions === true;
175:
176: try {
177: $iterator = new DirectoryIterator($this->path);
178: } catch (Exception $e) {
179: return array($dirs, $files);
180: }
181:
182: foreach ($iterator as $item) {
183: if ($item->isDot()) {
184: continue;
185: }
186: $name = $item->getFileName();
187: if ($skipHidden && $name[0] === '.' || isset($exceptions[$name])) {
188: continue;
189: }
190: if ($fullPath) {
191: $name = $item->getPathName();
192: }
193: if ($item->isDir()) {
194: $dirs[] = $name;
195: } else {
196: $files[] = $name;
197: }
198: }
199: if ($sort || $this->sort) {
200: sort($dirs);
201: sort($files);
202: }
203: return array($dirs, $files);
204: }
205:
206: /**
207: * Returns an array of all matching files in current directory.
208: *
209: * @param string $regexpPattern Preg_match pattern (Defaults to: .*)
210: * @param boolean $sort Whether results should be sorted.
211: * @return array Files that match given pattern
212: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::find
213: */
214: public function find($regexpPattern = '.*', $sort = false) {
215: list(, $files) = $this->read($sort);
216: return array_values(preg_grep('/^' . $regexpPattern . '$/i', $files));
217: }
218:
219: /**
220: * Returns an array of all matching files in and below current directory.
221: *
222: * @param string $pattern Preg_match pattern (Defaults to: .*)
223: * @param boolean $sort Whether results should be sorted.
224: * @return array Files matching $pattern
225: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::findRecursive
226: */
227: public function findRecursive($pattern = '.*', $sort = false) {
228: if (!$this->pwd()) {
229: return array();
230: }
231: $startsOn = $this->path;
232: $out = $this->_findRecursive($pattern, $sort);
233: $this->cd($startsOn);
234: return $out;
235: }
236:
237: /**
238: * Private helper function for findRecursive.
239: *
240: * @param string $pattern Pattern to match against
241: * @param boolean $sort Whether results should be sorted.
242: * @return array Files matching pattern
243: */
244: protected function _findRecursive($pattern, $sort = false) {
245: list($dirs, $files) = $this->read($sort);
246: $found = array();
247:
248: foreach ($files as $file) {
249: if (preg_match('/^' . $pattern . '$/i', $file)) {
250: $found[] = Folder::addPathElement($this->path, $file);
251: }
252: }
253: $start = $this->path;
254:
255: foreach ($dirs as $dir) {
256: $this->cd(Folder::addPathElement($start, $dir));
257: $found = array_merge($found, $this->findRecursive($pattern, $sort));
258: }
259: return $found;
260: }
261:
262: /**
263: * Returns true if given $path is a Windows path.
264: *
265: * @param string $path Path to check
266: * @return boolean true if windows path, false otherwise
267: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::isWindowsPath
268: */
269: public static function isWindowsPath($path) {
270: return (preg_match('/^[A-Z]:\\\\/i', $path) || substr($path, 0, 2) === '\\\\');
271: }
272:
273: /**
274: * Returns true if given $path is an absolute path.
275: *
276: * @param string $path Path to check
277: * @return boolean true if path is absolute.
278: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::isAbsolute
279: */
280: public static function isAbsolute($path) {
281: return !empty($path) && ($path[0] === '/' || preg_match('/^[A-Z]:\\\\/i', $path) || substr($path, 0, 2) === '\\\\');
282: }
283:
284: /**
285: * Returns a correct set of slashes for given $path. (\\ for Windows paths and / for other paths.)
286: *
287: * @param string $path Path to check
288: * @return string Set of slashes ("\\" or "/")
289: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::normalizePath
290: */
291: public static function normalizePath($path) {
292: return Folder::correctSlashFor($path);
293: }
294:
295: /**
296: * Returns a correct set of slashes for given $path. (\\ for Windows paths and / for other paths.)
297: *
298: * @param string $path Path to check
299: * @return string Set of slashes ("\\" or "/")
300: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::correctSlashFor
301: */
302: public static function correctSlashFor($path) {
303: return (Folder::isWindowsPath($path)) ? '\\' : '/';
304: }
305:
306: /**
307: * Returns $path with added terminating slash (corrected for Windows or other OS).
308: *
309: * @param string $path Path to check
310: * @return string Path with ending slash
311: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::slashTerm
312: */
313: public static function slashTerm($path) {
314: if (Folder::isSlashTerm($path)) {
315: return $path;
316: }
317: return $path . Folder::correctSlashFor($path);
318: }
319:
320: /**
321: * Returns $path with $element added, with correct slash in-between.
322: *
323: * @param string $path Path
324: * @param string $element Element to and at end of path
325: * @return string Combined path
326: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::addPathElement
327: */
328: public static function addPathElement($path, $element) {
329: return rtrim($path, DS) . DS . $element;
330: }
331:
332: /**
333: * Returns true if the File is in a given CakePath.
334: *
335: * @param string $path The path to check.
336: * @return boolean
337: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::inCakePath
338: */
339: public function inCakePath($path = '') {
340: $dir = substr(Folder::slashTerm(ROOT), 0, -1);
341: $newdir = $dir . $path;
342:
343: return $this->inPath($newdir);
344: }
345:
346: /**
347: * Returns true if the File is in given path.
348: *
349: * @param string $path The path to check that the current pwd() resides with in.
350: * @param boolean $reverse Reverse the search, check that pwd() resides within $path.
351: * @return boolean
352: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::inPath
353: */
354: public function inPath($path = '', $reverse = false) {
355: $dir = Folder::slashTerm($path);
356: $current = Folder::slashTerm($this->pwd());
357:
358: if (!$reverse) {
359: $return = preg_match('/^(.*)' . preg_quote($dir, '/') . '(.*)/', $current);
360: } else {
361: $return = preg_match('/^(.*)' . preg_quote($current, '/') . '(.*)/', $dir);
362: }
363: return (bool)$return;
364: }
365:
366: /**
367: * Change the mode on a directory structure recursively. This includes changing the mode on files as well.
368: *
369: * @param string $path The path to chmod
370: * @param integer $mode octal value 0755
371: * @param boolean $recursive chmod recursively, set to false to only change the current directory.
372: * @param array $exceptions array of files, directories to skip
373: * @return boolean Returns TRUE on success, FALSE on failure
374: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::chmod
375: */
376: public function chmod($path, $mode = false, $recursive = true, $exceptions = array()) {
377: if (!$mode) {
378: $mode = $this->mode;
379: }
380:
381: if ($recursive === false && is_dir($path)) {
382: //@codingStandardsIgnoreStart
383: if (@chmod($path, intval($mode, 8))) {
384: //@codingStandardsIgnoreEnd
385: $this->_messages[] = __d('cake_dev', '%s changed to %s', $path, $mode);
386: return true;
387: }
388:
389: $this->_errors[] = __d('cake_dev', '%s NOT changed to %s', $path, $mode);
390: return false;
391: }
392:
393: if (is_dir($path)) {
394: $paths = $this->tree($path);
395:
396: foreach ($paths as $type) {
397: foreach ($type as $fullpath) {
398: $check = explode(DS, $fullpath);
399: $count = count($check);
400:
401: if (in_array($check[$count - 1], $exceptions)) {
402: continue;
403: }
404:
405: //@codingStandardsIgnoreStart
406: if (@chmod($fullpath, intval($mode, 8))) {
407: //@codingStandardsIgnoreEnd
408: $this->_messages[] = __d('cake_dev', '%s changed to %s', $fullpath, $mode);
409: } else {
410: $this->_errors[] = __d('cake_dev', '%s NOT changed to %s', $fullpath, $mode);
411: }
412: }
413: }
414:
415: if (empty($this->_errors)) {
416: return true;
417: }
418: }
419: return false;
420: }
421:
422: /**
423: * Returns an array of nested directories and files in each directory
424: *
425: * @param string $path the directory path to build the tree from
426: * @param array|boolean $exceptions Either an array of files/folder to exclude
427: * or boolean true to not grab dot files/folders
428: * @param string $type either 'file' or 'dir'. null returns both files and directories
429: * @return mixed array of nested directories and files in each directory
430: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::tree
431: */
432: public function tree($path = null, $exceptions = false, $type = null) {
433: if (!$path) {
434: $path = $this->path;
435: }
436: $files = array();
437: $directories = array($path);
438:
439: if (is_array($exceptions)) {
440: $exceptions = array_flip($exceptions);
441: }
442: $skipHidden = false;
443: if ($exceptions === true) {
444: $skipHidden = true;
445: } elseif (isset($exceptions['.'])) {
446: $skipHidden = true;
447: unset($exceptions['.']);
448: }
449:
450: try {
451: $directory = new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::KEY_AS_PATHNAME | RecursiveDirectoryIterator::CURRENT_AS_SELF);
452: $iterator = new RecursiveIteratorIterator($directory, RecursiveIteratorIterator::SELF_FIRST);
453: } catch (Exception $e) {
454: if ($type === null) {
455: return array(array(), array());
456: }
457: return array();
458: }
459:
460: foreach ($iterator as $itemPath => $fsIterator) {
461: if ($skipHidden) {
462: $subPathName = $fsIterator->getSubPathname();
463: if ($subPathName{0} === '.' || strpos($subPathName, DS . '.') !== false) {
464: continue;
465: }
466: }
467: $item = $fsIterator->current();
468: if (!empty($exceptions) && isset($exceptions[$item->getFilename()])) {
469: continue;
470: }
471:
472: if ($item->isFile()) {
473: $files[] = $itemPath;
474: } elseif ($item->isDir() && !$item->isDot()) {
475: $directories[] = $itemPath;
476: }
477: }
478: if ($type === null) {
479: return array($directories, $files);
480: }
481: if ($type === 'dir') {
482: return $directories;
483: }
484: return $files;
485: }
486:
487: /**
488: * Create a directory structure recursively. Can be used to create
489: * deep path structures like `/foo/bar/baz/shoe/horn`
490: *
491: * @param string $pathname The directory structure to create
492: * @param integer $mode octal value 0755
493: * @return boolean Returns TRUE on success, FALSE on failure
494: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::create
495: */
496: public function create($pathname, $mode = false) {
497: if (is_dir($pathname) || empty($pathname)) {
498: return true;
499: }
500:
501: if (!$mode) {
502: $mode = $this->mode;
503: }
504:
505: if (is_file($pathname)) {
506: $this->_errors[] = __d('cake_dev', '%s is a file', $pathname);
507: return false;
508: }
509: $pathname = rtrim($pathname, DS);
510: $nextPathname = substr($pathname, 0, strrpos($pathname, DS));
511:
512: if ($this->create($nextPathname, $mode)) {
513: if (!file_exists($pathname)) {
514: $old = umask(0);
515: if (mkdir($pathname, $mode)) {
516: umask($old);
517: $this->_messages[] = __d('cake_dev', '%s created', $pathname);
518: return true;
519: }
520: umask($old);
521: $this->_errors[] = __d('cake_dev', '%s NOT created', $pathname);
522: return false;
523: }
524: }
525: return false;
526: }
527:
528: /**
529: * Returns the size in bytes of this Folder and its contents.
530: *
531: * @return integer size in bytes of current folder
532: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::dirsize
533: */
534: public function dirsize() {
535: $size = 0;
536: $directory = Folder::slashTerm($this->path);
537: $stack = array($directory);
538: $count = count($stack);
539: for ($i = 0, $j = $count; $i < $j; ++$i) {
540: if (is_file($stack[$i])) {
541: $size += filesize($stack[$i]);
542: } elseif (is_dir($stack[$i])) {
543: $dir = dir($stack[$i]);
544: if ($dir) {
545: while (false !== ($entry = $dir->read())) {
546: if ($entry === '.' || $entry === '..') {
547: continue;
548: }
549: $add = $stack[$i] . $entry;
550:
551: if (is_dir($stack[$i] . $entry)) {
552: $add = Folder::slashTerm($add);
553: }
554: $stack[] = $add;
555: }
556: $dir->close();
557: }
558: }
559: $j = count($stack);
560: }
561: return $size;
562: }
563:
564: /**
565: * Recursively Remove directories if the system allows.
566: *
567: * @param string $path Path of directory to delete
568: * @return boolean Success
569: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::delete
570: */
571: public function delete($path = null) {
572: if (!$path) {
573: $path = $this->pwd();
574: }
575: if (!$path) {
576: return null;
577: }
578: $path = Folder::slashTerm($path);
579: if (is_dir($path)) {
580: try {
581: $directory = new RecursiveDirectoryIterator($path, RecursiveDirectoryIterator::CURRENT_AS_SELF);
582: $iterator = new RecursiveIteratorIterator($directory, RecursiveIteratorIterator::CHILD_FIRST);
583: } catch (Exception $e) {
584: return false;
585: }
586:
587: foreach ($iterator as $item) {
588: $filePath = $item->getPathname();
589: if ($item->isFile() || $item->isLink()) {
590: //@codingStandardsIgnoreStart
591: if (@unlink($filePath)) {
592: //@codingStandardsIgnoreEnd
593: $this->_messages[] = __d('cake_dev', '%s removed', $filePath);
594: } else {
595: $this->_errors[] = __d('cake_dev', '%s NOT removed', $filePath);
596: }
597: } elseif ($item->isDir() && !$item->isDot()) {
598: //@codingStandardsIgnoreStart
599: if (@rmdir($filePath)) {
600: //@codingStandardsIgnoreEnd
601: $this->_messages[] = __d('cake_dev', '%s removed', $filePath);
602: } else {
603: $this->_errors[] = __d('cake_dev', '%s NOT removed', $filePath);
604: return false;
605: }
606: }
607: }
608:
609: $path = rtrim($path, DS);
610: //@codingStandardsIgnoreStart
611: if (@rmdir($path)) {
612: //@codingStandardsIgnoreEnd
613: $this->_messages[] = __d('cake_dev', '%s removed', $path);
614: } else {
615: $this->_errors[] = __d('cake_dev', '%s NOT removed', $path);
616: return false;
617: }
618: }
619: return true;
620: }
621:
622: /**
623: * Recursive directory copy.
624: *
625: * ### Options
626: *
627: * - `to` The directory to copy to.
628: * - `from` The directory to copy from, this will cause a cd() to occur, changing the results of pwd().
629: * - `mode` The mode to copy the files/directories with.
630: * - `skip` Files/directories to skip.
631: * - `scheme` Folder::MERGE, Folder::OVERWRITE, Folder::SKIP
632: *
633: * @param array|string $options Either an array of options (see above) or a string of the destination directory.
634: * @return boolean Success
635: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::copy
636: */
637: public function copy($options) {
638: if (!$this->pwd()) {
639: return false;
640: }
641: $to = null;
642: if (is_string($options)) {
643: $to = $options;
644: $options = array();
645: }
646: $options = array_merge(array('to' => $to, 'from' => $this->path, 'mode' => $this->mode, 'skip' => array(), 'scheme' => Folder::MERGE), $options);
647:
648: $fromDir = $options['from'];
649: $toDir = $options['to'];
650: $mode = $options['mode'];
651:
652: if (!$this->cd($fromDir)) {
653: $this->_errors[] = __d('cake_dev', '%s not found', $fromDir);
654: return false;
655: }
656:
657: if (!is_dir($toDir)) {
658: $this->create($toDir, $mode);
659: }
660:
661: if (!is_writable($toDir)) {
662: $this->_errors[] = __d('cake_dev', '%s not writable', $toDir);
663: return false;
664: }
665:
666: $exceptions = array_merge(array('.', '..', '.svn'), $options['skip']);
667: //@codingStandardsIgnoreStart
668: if ($handle = @opendir($fromDir)) {
669: //@codingStandardsIgnoreEnd
670: while (($item = readdir($handle)) !== false) {
671: $to = Folder::addPathElement($toDir, $item);
672: if (($options['scheme'] != Folder::SKIP || !is_dir($to)) && !in_array($item, $exceptions)) {
673: $from = Folder::addPathElement($fromDir, $item);
674: if (is_file($from)) {
675: if (copy($from, $to)) {
676: chmod($to, intval($mode, 8));
677: touch($to, filemtime($from));
678: $this->_messages[] = __d('cake_dev', '%s copied to %s', $from, $to);
679: } else {
680: $this->_errors[] = __d('cake_dev', '%s NOT copied to %s', $from, $to);
681: }
682: }
683:
684: if (is_dir($from) && file_exists($to) && $options['scheme'] === Folder::OVERWRITE) {
685: $this->delete($to);
686: }
687:
688: if (is_dir($from) && !file_exists($to)) {
689: $old = umask(0);
690: if (mkdir($to, $mode)) {
691: umask($old);
692: $old = umask(0);
693: chmod($to, $mode);
694: umask($old);
695: $this->_messages[] = __d('cake_dev', '%s created', $to);
696: $options = array_merge($options, array('to' => $to, 'from' => $from));
697: $this->copy($options);
698: } else {
699: $this->_errors[] = __d('cake_dev', '%s not created', $to);
700: }
701: } elseif (is_dir($from) && $options['scheme'] === Folder::MERGE) {
702: $options = array_merge($options, array('to' => $to, 'from' => $from));
703: $this->copy($options);
704: }
705: }
706: }
707: closedir($handle);
708: } else {
709: return false;
710: }
711:
712: if (!empty($this->_errors)) {
713: return false;
714: }
715: return true;
716: }
717:
718: /**
719: * Recursive directory move.
720: *
721: * ### Options
722: *
723: * - `to` The directory to copy to.
724: * - `from` The directory to copy from, this will cause a cd() to occur, changing the results of pwd().
725: * - `chmod` The mode to copy the files/directories with.
726: * - `skip` Files/directories to skip.
727: * - `scheme` Folder::MERGE, Folder::OVERWRITE, Folder::SKIP
728: *
729: * @param array $options (to, from, chmod, skip, scheme)
730: * @return boolean Success
731: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::move
732: */
733: public function move($options) {
734: $to = null;
735: if (is_string($options)) {
736: $to = $options;
737: $options = (array)$options;
738: }
739: $options = array_merge(
740: array('to' => $to, 'from' => $this->path, 'mode' => $this->mode, 'skip' => array()),
741: $options
742: );
743:
744: if ($this->copy($options)) {
745: if ($this->delete($options['from'])) {
746: return (bool)$this->cd($options['to']);
747: }
748: }
749: return false;
750: }
751:
752: /**
753: * get messages from latest method
754: *
755: * @param boolean $reset Reset message stack after reading
756: * @return array
757: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::messages
758: */
759: public function messages($reset = true) {
760: $messages = $this->_messages;
761: if ($reset) {
762: $this->_messages = array();
763: }
764: return $messages;
765: }
766:
767: /**
768: * get error from latest method
769: *
770: * @param boolean $reset Reset error stack after reading
771: * @return array
772: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::errors
773: */
774: public function errors($reset = true) {
775: $errors = $this->_errors;
776: if ($reset) {
777: $this->_errors = array();
778: }
779: return $errors;
780: }
781:
782: /**
783: * Get the real path (taking ".." and such into account)
784: *
785: * @param string $path Path to resolve
786: * @return string The resolved path
787: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::realpath
788: */
789: public function realpath($path) {
790: $path = str_replace('/', DS, trim($path));
791: if (strpos($path, '..') === false) {
792: if (!Folder::isAbsolute($path)) {
793: $path = Folder::addPathElement($this->path, $path);
794: }
795: return $path;
796: }
797: $parts = explode(DS, $path);
798: $newparts = array();
799: $newpath = '';
800: if ($path[0] === DS) {
801: $newpath = DS;
802: }
803:
804: while (($part = array_shift($parts)) !== null) {
805: if ($part === '.' || $part === '') {
806: continue;
807: }
808: if ($part === '..') {
809: if (!empty($newparts)) {
810: array_pop($newparts);
811: continue;
812: }
813: return false;
814: }
815: $newparts[] = $part;
816: }
817: $newpath .= implode(DS, $newparts);
818:
819: return Folder::slashTerm($newpath);
820: }
821:
822: /**
823: * Returns true if given $path ends in a slash (i.e. is slash-terminated).
824: *
825: * @param string $path Path to check
826: * @return boolean true if path ends with slash, false otherwise
827: * @link http://book.cakephp.org/2.0/en/core-utility-libraries/file-folder.html#Folder::isSlashTerm
828: */
829: public static function isSlashTerm($path) {
830: $lastChar = $path[strlen($path) - 1];
831: return $lastChar === '/' || $lastChar === '\\';
832: }
833:
834: }
835: