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authorfriendica <info@friendica.com>2012-05-12 17:57:41 -0700
committerfriendica <info@friendica.com>2012-07-18 20:40:31 +1000
commit7a40f4354b32809af3d0cfd6e3af0eda02ab0e0a (patch)
treea9c3d91209cff770bb4b613b1b95e61a7bbc5a2b /lib/htmlpurifier/extras/FSTools.php
parentcd727cb26b78a1dade09d510b071446898477356 (diff)
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some important stuff we'll need
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+<?php
+
+/**
+ * Filesystem tools not provided by default; can recursively create, copy
+ * and delete folders. Some template methods are provided for extensibility.
+ *
+ * @note This class must be instantiated to be used, although it does
+ * not maintain state.
+ */
+class FSTools
+{
+
+ private static $singleton;
+
+ /**
+ * Returns a global instance of FSTools
+ */
+ static public function singleton() {
+ if (empty(FSTools::$singleton)) FSTools::$singleton = new FSTools();
+ return FSTools::$singleton;
+ }
+
+ /**
+ * Sets our global singleton to something else; useful for overloading
+ * functions.
+ */
+ static public function setSingleton($singleton) {
+ FSTools::$singleton = $singleton;
+ }
+
+ /**
+ * Recursively creates a directory
+ * @param string $folder Name of folder to create
+ * @note Adapted from the PHP manual comment 76612
+ */
+ public function mkdirr($folder) {
+ $folders = preg_split("#[\\\\/]#", $folder);
+ $base = '';
+ for($i = 0, $c = count($folders); $i < $c; $i++) {
+ if(empty($folders[$i])) {
+ if (!$i) {
+ // special case for root level
+ $base .= DIRECTORY_SEPARATOR;
+ }
+ continue;
+ }
+ $base .= $folders[$i];
+ if(!is_dir($base)){
+ $this->mkdir($base);
+ }
+ $base .= DIRECTORY_SEPARATOR;
+ }
+ }
+
+ /**
+ * Copy a file, or recursively copy a folder and its contents; modified
+ * so that copied files, if PHP, have includes removed
+ * @note Adapted from http://aidanlister.com/repos/v/function.copyr.php
+ */
+ public function copyr($source, $dest) {
+ // Simple copy for a file
+ if (is_file($source)) {
+ return $this->copy($source, $dest);
+ }
+ // Make destination directory
+ if (!is_dir($dest)) {
+ $this->mkdir($dest);
+ }
+ // Loop through the folder
+ $dir = $this->dir($source);
+ while ( false !== ($entry = $dir->read()) ) {
+ // Skip pointers
+ if ($entry == '.' || $entry == '..') {
+ continue;
+ }
+ if (!$this->copyable($entry)) {
+ continue;
+ }
+ // Deep copy directories
+ if ($dest !== "$source/$entry") {
+ $this->copyr("$source/$entry", "$dest/$entry");
+ }
+ }
+ // Clean up
+ $dir->close();
+ return true;
+ }
+
+ /**
+ * Overloadable function that tests a filename for copyability. By
+ * default, everything should be copied; you can restrict things to
+ * ignore hidden files, unreadable files, etc. This function
+ * applies to copyr().
+ */
+ public function copyable($file) {
+ return true;
+ }
+
+ /**
+ * Delete a file, or a folder and its contents
+ * @note Adapted from http://aidanlister.com/repos/v/function.rmdirr.php
+ */
+ public function rmdirr($dirname)
+ {
+ // Sanity check
+ if (!$this->file_exists($dirname)) {
+ return false;
+ }
+
+ // Simple delete for a file
+ if ($this->is_file($dirname) || $this->is_link($dirname)) {
+ return $this->unlink($dirname);
+ }
+
+ // Loop through the folder
+ $dir = $this->dir($dirname);
+ while (false !== $entry = $dir->read()) {
+ // Skip pointers
+ if ($entry == '.' || $entry == '..') {
+ continue;
+ }
+ // Recurse
+ $this->rmdirr($dirname . DIRECTORY_SEPARATOR . $entry);
+ }
+
+ // Clean up
+ $dir->close();
+ return $this->rmdir($dirname);
+ }
+
+ /**
+ * Recursively globs a directory.
+ */
+ public function globr($dir, $pattern, $flags = NULL) {
+ $files = $this->glob("$dir/$pattern", $flags);
+ if ($files === false) $files = array();
+ $sub_dirs = $this->glob("$dir/*", GLOB_ONLYDIR);
+ if ($sub_dirs === false) $sub_dirs = array();
+ foreach ($sub_dirs as $sub_dir) {
+ $sub_files = $this->globr($sub_dir, $pattern, $flags);
+ $files = array_merge($files, $sub_files);
+ }
+ return $files;
+ }
+
+ /**
+ * Allows for PHP functions to be called and be stubbed.
+ * @warning This function will not work for functions that need
+ * to pass references; manually define a stub function for those.
+ */
+ public function __call($name, $args) {
+ return call_user_func_array($name, $args);
+ }
+
+}
+
+// vim: et sw=4 sts=4