mirror of https://github.com/friendica/friendica
142 lines
3.6 KiB
PHP
142 lines
3.6 KiB
PHP
<?php
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/**
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* Represents a file in the filesystem
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*
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* @warning Be sure to distinguish between get() and write() versus
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* read() and put(), the former operates on the entire file, while
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* the latter operates on a handle.
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*/
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class FSTools_File
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{
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/** Filename of file this object represents */
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protected $name;
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/** Handle for the file */
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protected $handle = false;
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/** Instance of FSTools for interfacing with filesystem */
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protected $fs;
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/**
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* Filename of file you wish to instantiate.
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* @note This file need not exist
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*/
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public function __construct($name, $fs = false)
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{
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$this->name = $name;
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$this->fs = $fs ? $fs : FSTools::singleton();
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}
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/** Returns the filename of the file. */
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public function getName() {return $this->name;}
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/** Returns directory of the file without trailing slash */
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public function getDirectory() {return $this->fs->dirname($this->name);}
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/**
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* Retrieves the contents of a file
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* @todo Throw an exception if file doesn't exist
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*/
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public function get()
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{
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return $this->fs->file_get_contents($this->name);
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}
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/** Writes contents to a file, creates new file if necessary */
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public function write($contents)
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{
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return $this->fs->file_put_contents($this->name, $contents);
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}
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/** Deletes the file */
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public function delete()
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{
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return $this->fs->unlink($this->name);
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}
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/** Returns true if file exists and is a file. */
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public function exists()
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{
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return $this->fs->is_file($this->name);
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}
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/** Returns last file modification time */
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public function getMTime()
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{
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return $this->fs->filemtime($this->name);
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}
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/**
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* Chmod a file
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* @note We ignore errors because of some weird owner trickery due
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* to SVN duality
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*/
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public function chmod($octal_code)
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{
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return @$this->fs->chmod($this->name, $octal_code);
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}
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/** Opens file's handle */
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public function open($mode)
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{
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if ($this->handle) $this->close();
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$this->handle = $this->fs->fopen($this->name, $mode);
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return true;
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}
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/** Closes file's handle */
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public function close()
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{
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if (!$this->handle) return false;
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$status = $this->fs->fclose($this->handle);
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$this->handle = false;
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return $status;
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}
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/** Retrieves a line from an open file, with optional max length $length */
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public function getLine($length = null)
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{
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if (!$this->handle) $this->open('r');
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if ($length === null) return $this->fs->fgets($this->handle);
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else return $this->fs->fgets($this->handle, $length);
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}
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/** Retrieves a character from an open file */
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public function getChar()
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{
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if (!$this->handle) $this->open('r');
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return $this->fs->fgetc($this->handle);
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}
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/** Retrieves an $length bytes of data from an open data */
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public function read($length)
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{
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if (!$this->handle) $this->open('r');
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return $this->fs->fread($this->handle, $length);
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}
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/** Writes to an open file */
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public function put($string)
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{
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if (!$this->handle) $this->open('a');
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return $this->fs->fwrite($this->handle, $string);
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}
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/** Returns TRUE if the end of the file has been reached */
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public function eof()
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{
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if (!$this->handle) return true;
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return $this->fs->feof($this->handle);
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}
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public function __destruct()
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{
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if ($this->handle) $this->close();
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}
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}
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// vim: et sw=4 sts=4
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