rhymix/classes/file/FileHandler.class.php

1045 lines
23 KiB
PHP

<?php
/* Copyright (C) NAVER <http://www.navercorp.com> */
/**
* Contains methods for accessing file system
*
* @author NAVER (developers@xpressengine.com)
*/
class FileHandler
{
/**
* Changes path of target file, directory into absolute path
*
* @param string $source path to change into absolute path
* @return string Absolute path
*/
function getRealPath($source)
{
if(strlen($source) >= 2 && substr_compare($source, './', 0, 2) === 0)
{
return _XE_PATH_ . substr($source, 2);
}
return $source;
}
/**
* Copy a directory to target
*
* If target directory does not exist, this function creates it
*
* @param string $source_dir Path of source directory
* @param string $target_dir Path of target dir
* @param string $filter Regex to filter files. If file matches this regex, the file is not copied.
* @param string $type If set as 'force'. Even if the file exists in target, the file is copied.
* @return void
*/
function copyDir($source_dir, $target_dir, $filter = null, $type = null)
{
$source_dir = self::getRealPath($source_dir);
$target_dir = self::getRealPath($target_dir);
if(!is_dir($source_dir))
{
return FALSE;
}
// generate when no target exists
self::makeDir($target_dir);
if(substr($source_dir, -1) != DIRECTORY_SEPARATOR)
{
$source_dir .= DIRECTORY_SEPARATOR;
}
if(substr($target_dir, -1) != DIRECTORY_SEPARATOR)
{
$target_dir .= DIRECTORY_SEPARATOR;
}
$oDir = dir($source_dir);
while($file = $oDir->read())
{
if($file{0} == '.')
{
continue;
}
if($filter && preg_match($filter, $file))
{
continue;
}
if(is_dir($source_dir . $file))
{
self::copyDir($source_dir . $file, $target_dir . $file, $type);
}
else
{
if($type == 'force')
{
@unlink($target_dir . $file);
}
else
{
if(!file_exists($target_dir . $file))
{
@copy($source_dir . $file, $target_dir . $file);
}
}
}
}
$oDir->close();
}
/**
* Copy a file to target
*
* @param string $source Path of source file
* @param string $target Path of target file
* @param string $force Y: overwrite
* @return void
*/
function copyFile($source, $target, $force = 'Y')
{
setlocale(LC_CTYPE, 'en_US.UTF8', 'ko_KR.UTF8');
$source = self::getRealPath($source);
$target_dir = self::getRealPath(dirname($target));
$target = basename($target);
self::makeDir($target_dir);
if($force == 'Y')
{
@unlink($target_dir . DIRECTORY_SEPARATOR . $target);
}
@copy($source, $target_dir . DIRECTORY_SEPARATOR . $target);
}
/**
* Returns the content of the file
*
* @param string $filename Path of target file
* @return string The content of the file. If target file does not exist, this function returns nothing.
*/
function readFile($filename)
{
if(($filename = self::exists($filename)) === FALSE || filesize($filename) < 1)
{
return;
}
return @file_get_contents($filename);
}
/**
* Write $buff into the specified file
*
* @param string $filename Path of target file
* @param string $buff Content to be written
* @param string $mode a(append) / w(write)
* @return void
*/
function writeFile($filename, $buff, $mode = "w")
{
$filename = self::getRealPath($filename);
$pathinfo = pathinfo($filename);
self::makeDir($pathinfo['dirname']);
$flags = 0;
if(strtolower($mode) == 'a')
{
$flags = FILE_APPEND;
}
@file_put_contents($filename, $buff, $flags|LOCK_EX);
@chmod($filename, 0644);
}
/**
* Remove a file
*
* @param string $filename path of target file
* @return bool Returns TRUE on success or FALSE on failure.
*/
function removeFile($filename)
{
return (($filename = self::exists($filename)) !== FALSE) && @unlink($filename);
}
/**
* Rename a file
*
* In order to move a file, use this function.
*
* @param string $source Path of source file
* @param string $target Path of target file
* @return bool Returns TRUE on success or FALSE on failure.
*/
function rename($source, $target)
{
return @rename(self::getRealPath($source), self::getRealPath($target));
}
/**
* Move a file
*
* @param string $source Path of source file
* @param string $target Path of target file
* @return bool Returns TRUE on success or FALSE on failure.
*/
function moveFile($source, $target)
{
if(($source = self::exists($source)) !== FALSE)
{
self::removeFile($target);
return self::rename($source, $target);
}
return FALSE;
}
/**
* Move a directory
*
* This function just wraps rename function.
*
* @param string $source_dir Path of source directory
* @param string $target_dir Path of target directory
* @return void
*/
function moveDir($source_dir, $target_dir)
{
self::rename($source_dir, $target_dir);
}
/**
* Return list of the files in the path
*
* The array does not contain files, such as '.', '..', and files starting with '.'
*
* @param string $path Path of target directory
* @param string $filter If specified, return only files matching with the filter
* @param bool $to_lower If TRUE, file names will be changed into lower case.
* @param bool $concat_prefix If TRUE, return file name as absolute path
* @return string[] Array of the filenames in the path
*/
function readDir($path, $filter = '', $to_lower = FALSE, $concat_prefix = FALSE)
{
$path = self::getRealPath($path);
$output = array();
if(substr($path, -1) != '/')
{
$path .= '/';
}
if(!is_dir($path))
{
return $output;
}
$files = scandir($path);
foreach($files as $file)
{
if($file{0} == '.' || ($filter && !preg_match($filter, $file)))
{
continue;
}
if($to_lower)
{
$file = strtolower($file);
}
if($filter)
{
$file = preg_replace($filter, '$1', $file);
}
if($concat_prefix)
{
$file = sprintf('%s%s', str_replace(_XE_PATH_, '', $path), $file);
}
$output[] = str_replace(array('/\\', '//'), '/', $file);
}
return $output;
}
/**
* Creates a directory
*
* This function creates directories recursively, which means that if ancestors of the target directory does not exist, they will be created too.
*
* @param string $path_string Path of target directory
* @return bool TRUE if success. It might return nothing when ftp is used and connection to the ftp address failed.
*/
function makeDir($path_string)
{
if(self::exists($path_string) !== FALSE)
{
return TRUE;
}
if(!ini_get('safe_mode'))
{
@mkdir($path_string, 0755, TRUE);
@chmod($path_string, 0755);
}
// if safe_mode is on, use FTP
else
{
static $oFtp = NULL;
$ftp_info = Context::getFTPInfo();
if($oFtp == NULL)
{
if(!Context::isFTPRegisted())
{
return;
}
require_once(_XE_PATH_ . 'libs/ftp.class.php');
$oFtp = new ftp();
if(!$ftp_info->ftp_host)
{
$ftp_info->ftp_host = "127.0.0.1";
}
if(!$ftp_info->ftp_port)
{
$ftp_info->ftp_port = 21;
}
if(!$oFtp->ftp_connect($ftp_info->ftp_host, $ftp_info->ftp_port))
{
return;
}
if(!$oFtp->ftp_login($ftp_info->ftp_user, $ftp_info->ftp_password))
{
$oFtp->ftp_quit();
return;
}
}
if(!($ftp_path = $ftp_info->ftp_root_path))
{
$ftp_path = DIRECTORY_SEPARATOR;
}
$path_string = str_replace(_XE_PATH_, '', $path_string);
$path_list = explode(DIRECTORY_SEPARATOR, $path_string);
$path = _XE_PATH_;
for($i = 0, $c = count($path_list); $i < $c; $i++)
{
if(!$path_list[$i])
{
continue;
}
$path .= $path_list[$i] . DIRECTORY_SEPARATOR;
$ftp_path .= $path_list[$i] . DIRECTORY_SEPARATOR;
if(!is_dir($path))
{
$oFtp->ftp_mkdir($ftp_path);
$oFtp->ftp_site("CHMOD 777 " . $ftp_path);
}
}
}
return is_dir($path_string);
}
/**
* Remove all files under the path
*
* @param string $path Path of the target directory
* @return void
*/
function removeDir($path)
{
if(($path = self::isDir($path)) === FALSE)
{
return;
}
if(self::isDir($path))
{
$files = array_diff(scandir($path), array('..', '.'));
foreach($files as $file)
{
if(($target = self::getRealPath($path . DIRECTORY_SEPARATOR . $file)) === FALSE)
{
continue;
}
if(is_dir($target))
{
self::removeDir($target);
}
else
{
unlink($target);
}
}
rmdir($path);
}
else
{
unlink($path);
}
}
/**
* Remove a directory only if it is empty
*
* @param string $path Path of the target directory
* @return void
*/
function removeBlankDir($path)
{
if(($path = self::isDir($path)) === FALSE)
{
return;
}
$files = array_diff(scandir($path), array('..', '.'));
if(count($files) < 1)
{
rmdir($path);
return;
}
foreach($files as $file)
{
if(($target = self::isDir($path . DIRECTORY_SEPARATOR . $file)) === FALSE)
{
continue;
}
self::removeBlankDir($target);
}
}
/**
* Remove files in the target directory
*
* This function keeps the directory structure.
*
* @param string $path Path of the target directory
* @return void
*/
function removeFilesInDir($path)
{
if(($path = self::getRealPath($path)) === FALSE)
{
return;
}
if(is_dir($path))
{
$files = array_diff(scandir($path), array('..', '.'));
foreach($files as $file)
{
if(($target = self::getRealPath($path . DIRECTORY_SEPARATOR . $file)) === FALSE)
{
continue;
}
if(is_dir($target))
{
self::removeFilesInDir($target);
}
else
{
unlink($target);
}
}
}
else
{
if(self::exists($path)) unlink($path);
}
}
/**
* Makes file size byte into KB, MB according to the size
*
* @see self::returnBytes()
* @param int $size Number of the size
* @return string File size string
*/
function filesize($size)
{
if(!$size)
{
return '0Byte';
}
if($size === 1)
{
return '1Byte';
}
if($size < 1024)
{
return $size . 'Bytes';
}
if($size >= 1024 && $size < 1024 * 1024)
{
return sprintf("%0.1fKB", $size / 1024);
}
return sprintf("%0.2fMB", $size / (1024 * 1024));
}
/**
* Return remote file's content via HTTP
*
* If the target is moved (when return code is 300~399), this function follows the location specified response header.
*
* @param string $url The address of the target file
* @param string $body HTTP request body
* @param int $timeout Connection timeout
* @param string $method GET/POST
* @param string $content_type Content type header of HTTP request
* @param string[] $headers Headers key value array.
* @param string[] $cookies Cookies key value array.
* @param string $post_data Request arguments array for POST method
* @return string If success, the content of the target file. Otherwise: none
*/
function getRemoteResource($url, $body = null, $timeout = 3, $method = 'GET', $content_type = null, $headers = array(), $cookies = array(), $post_data = array(), $request_config = array())
{
try
{
requirePear();
require_once('HTTP/Request.php');
$parsed_url = parse_url(__PROXY_SERVER__);
if($parsed_url["host"])
{
$oRequest = new HTTP_Request(__PROXY_SERVER__);
$oRequest->setMethod('POST');
$oRequest->_timeout = $timeout;
$oRequest->addPostData('arg', serialize(array('Destination' => $url, 'method' => $method, 'body' => $body, 'content_type' => $content_type, "headers" => $headers, "post_data" => $post_data)));
}
else
{
$oRequest = new HTTP_Request($url);
if(count($request_config) && method_exists($oRequest, 'setConfig'))
{
foreach($request_config as $key=>$val)
{
$oRequest->setConfig($key, $val);
}
}
if(count($headers) > 0)
{
foreach($headers as $key => $val)
{
$oRequest->addHeader($key, $val);
}
}
if($cookies[$host])
{
foreach($cookies[$host] as $key => $val)
{
$oRequest->addCookie($key, $val);
}
}
if(count($post_data) > 0)
{
foreach($post_data as $key => $val)
{
$oRequest->addPostData($key, $val);
}
}
if(!$content_type)
$oRequest->addHeader('Content-Type', 'text/html');
else
$oRequest->addHeader('Content-Type', $content_type);
$oRequest->setMethod($method);
if($body)
$oRequest->setBody($body);
}
$oRequest->setConfig('timeout', $timeout);
$oResponse = $oRequest->sendRequest();
$code = $oRequest->getResponseCode();
$header = $oRequest->getResponseHeader();
$response = $oRequest->getResponseBody();
if($c = $oRequest->getResponseCookies())
{
foreach($c as $k => $v)
{
$cookies[$host][$v['name']] = $v['value'];
}
}
if($code > 300 && $code < 399 && $header['location'])
{
return self::getRemoteResource($header['location'], $body, $timeout, $method, $content_type, $headers, $cookies, $post_data);
}
if($code != 200)
return;
return $response;
}
catch(Exception $e)
{
return NULL;
}
}
/**
* Retrieves remote file, then stores it into target path.
*
* @param string $url The address of the target file
* @param string $target_filename The location to store
* @param string $body HTTP request body
* @param string $timeout Connection timeout
* @param string $method GET/POST
* @param string $content_type Content type header of HTTP request
* @param string[] $headers Headers key value array.
* @return bool TRUE: success, FALSE: failed
*/
function getRemoteFile($url, $target_filename, $body = null, $timeout = 3, $method = 'GET', $content_type = null, $headers = array(), $cookies = array(), $post_data = array(), $request_config = array())
{
if(!($body = self::getRemoteResource($url, $body, $timeout, $method, $content_type, $headers,$cookies,$post_data,$request_config)))
{
return FALSE;
}
self::writeFile($target_filename, $body);
return TRUE;
}
/**
* Convert size in string into numeric value
*
* @see self::filesize()
* @param $val Size in string (ex., 10, 10K, 10M, 10G )
* @return int converted size
*/
function returnBytes($val)
{
$unit = strtoupper(substr($val, -1));
$val = (float)$val;
switch ($unit)
{
case 'G': $val *= 1024;
case 'M': $val *= 1024;
case 'K': $val *= 1024;
}
return round($val);
}
/**
* Check available memory to load image file
*
* @param array $imageInfo Image info retrieved by getimagesize function
* @return bool TRUE: it's ok, FALSE: otherwise
*/
function checkMemoryLoadImage(&$imageInfo)
{
$K64 = 65536;
$TWEAKFACTOR = 2.0;
$channels = $imageInfo['channels'];
if(!$channels)
{
$channels = 6; //for png
}
$memoryNeeded = round(($imageInfo[0] * $imageInfo[1] * $imageInfo['bits'] * $channels / 8 + $K64 ) * $TWEAKFACTOR);
$availableMemory = self::returnBytes(ini_get('memory_limit')) - memory_get_usage();
if($availableMemory < $memoryNeeded)
{
return FALSE;
}
return TRUE;
}
/**
* Moves an image file (resizing is possible)
*
* @param string $source_file Path of the source file
* @param string $target_file Path of the target file
* @param int $resize_width Width to resize
* @param int $resize_height Height to resize
* @param string $target_type If $target_type is set (gif, jpg, png, bmp), result image will be saved as target type
* @param string $thumbnail_type Thumbnail type(crop, ratio)
* @return bool TRUE: success, FALSE: failed
*/
function createImageFile($source_file, $target_file, $resize_width = 0, $resize_height = 0, $target_type = '', $thumbnail_type = 'crop')
{
// check params
if (($source_file = self::exists($source_file)) === FALSE)
{
return;
}
$target_file = self::getRealPath($target_file);
if(!$resize_width)
{
$resize_width = 100;
}
if(!$resize_height)
{
$resize_height = $resize_width;
}
// retrieve source image's information
$imageInfo = getimagesize($source_file);
if(!self::checkMemoryLoadImage($imageInfo))
{
return FALSE;
}
list($width, $height, $type, $attrs) = $imageInfo;
if($width < 1 || $height < 1)
{
return;
}
switch($type)
{
case '1' :
$type = 'gif';
break;
case '2' :
$type = 'jpg';
break;
case '3' :
$type = 'png';
break;
case '6' :
$type = 'bmp';
break;
default :
return;
}
if(!$target_type)
{
$target_type = $type;
}
$target_type = strtolower($target_type);
// if original image is larger than specified size to resize, calculate the ratio
$width_per = ($resize_width > 0 && $width >= $resize_width) ? $resize_width / $width : 1;
$height_per = ($resize_height > 0 && $height >= $resize_height) ? $resize_height / $height : 1;
$per = NULL;
if($thumbnail_type == 'ratio')
{
$per = ($width_per > $height_per) ? $height_per : $width_per;
$resize_width = $width * $per;
$resize_height = $height * $per;
}
else
{
$per = ($width_per < $height_per) ? $height_per : $width_per;
}
// create temporary image with target size
$thumb = NULL;
if(function_exists('imagecreateTRUEcolor'))
{
$thumb = imagecreateTRUEcolor($resize_width, $resize_height);
}
else if(function_exists('imagecreate'))
{
$thumb = imagecreate($resize_width, $resize_height);
}
if(!$thumb)
{
return FALSE;
}
imagefilledrectangle($thumb, 0, 0, $resize_width - 1, $resize_height - 1, imagecolorallocate($thumb, 255, 255, 255));
// create temporary image having original type
$source = NULL;
switch($type)
{
case 'gif' :
if(function_exists('imagecreatefromgif'))
{
$source = @imagecreatefromgif($source_file);
}
break;
case 'jpeg' :
case 'jpg' :
if(function_exists('imagecreatefromjpeg'))
{
$source = @imagecreatefromjpeg($source_file);
}
break;
case 'png' :
if(function_exists('imagecreatefrompng'))
{
$source = @imagecreatefrompng($source_file);
}
break;
case 'wbmp' :
case 'bmp' :
if(function_exists('imagecreatefromwbmp'))
{
$source = @imagecreatefromwbmp($source_file);
}
break;
}
if(!$source)
{
imagedestroy($thumb);
return FALSE;
}
// resize original image and put it into temporary image
$new_width = (int) ($width * $per);
$new_height = (int) ($height * $per);
$x = 0;
$y = 0;
if($thumbnail_type == 'crop')
{
$x = (int) ($resize_width / 2 - $new_width / 2);
$y = (int) ($resize_height / 2 - $new_height / 2);
}
if(function_exists('imagecopyresampled'))
{
imagecopyresampled($thumb, $source, $x, $y, 0, 0, $new_width, $new_height, $width, $height);
}
else
{
imagecopyresized($thumb, $source, $x, $y, 0, 0, $new_width, $new_height, $width, $height);
}
// create directory
self::makeDir(dirname($target_file));
// write into the file
$output = NULL;
switch($target_type)
{
case 'gif' :
if(function_exists('imagegif'))
{
$output = imagegif($thumb, $target_file);
}
break;
case 'jpeg' :
case 'jpg' :
if(function_exists('imagejpeg'))
{
$output = imagejpeg($thumb, $target_file, 100);
}
break;
case 'png' :
if(function_exists('imagepng'))
{
$output = imagepng($thumb, $target_file, 9);
}
break;
case 'wbmp' :
case 'bmp' :
if(function_exists('imagewbmp'))
{
$output = imagewbmp($thumb, $target_file, 100);
}
break;
}
imagedestroy($thumb);
imagedestroy($source);
if(!$output)
{
return FALSE;
}
@chmod($target_file, 0644);
return TRUE;
}
/**
* Reads ini file, and puts result into array
*
* @see self::writeIniFile()
* @param string $filename Path of the ini file
* @return array ini array (if the target file does not exist, it returns FALSE)
*/
function readIniFile($filename)
{
if(($filename = self::exists($filename)) === FALSE)
{
return FALSE;
}
$arr = parse_ini_file($filename, TRUE);
if(is_array($arr) && count($arr) > 0)
{
return $arr;
}
else
{
return array();
}
}
/**
* Write array into ini file
*
* $ini['key1'] = 'value1';<br/>
* $ini['key2'] = 'value2';<br/>
* $ini['section']['key1_in_section'] = 'value1_in_section';<br/>
* $ini['section']['key2_in_section'] = 'value2_in_section';<br/>
* self::writeIniFile('exmple.ini', $ini);
*
* @see self::readIniFile()
* @param string $filename Target ini file name
* @param array $arr Array
* @return bool if array contains nothing it returns FALSE, otherwise TRUE
*/
function writeIniFile($filename, $arr)
{
if(!is_array($arr) || count($arr) == 0)
{
return FALSE;
}
self::writeFile($filename, self::_makeIniBuff($arr));
return TRUE;
}
/**
* Make array to ini string
*
* @param array $arr Array
* @return string
*/
function _makeIniBuff($arr)
{
$return = array();
foreach($arr as $key => $val)
{
// section
if(is_array($val))
{
$return[] = sprintf("[%s]", $key);
foreach($val as $k => $v)
{
$return[] = sprintf("%s=\"%s\"", $k, $v);
}
// value
}
else if(is_object($val))
{
continue;
}
else
{
$return[] = sprintf("%s=\"%s\"", $key, $val);
}
}
return join("\n", $return);
}
/**
* Returns a file object
*
* If the directory of the file does not exist, create it.
*
* @param string $filename Target file name
* @param string $mode File mode for fopen
* @return FileObject File object
*/
function openFile($filename, $mode)
{
$pathinfo = pathinfo($filename);
self::makeDir($pathinfo['dirname']);
require_once("FileObject.class.php");
return new FileObject($filename, $mode);
}
/**
* Check whether the given file has the content.
*
* @param string $filename Target file name
* @return bool Returns TRUE if the file exists and contains something.
*/
function hasContent($filename)
{
return (is_readable($filename) && (filesize($filename) > 0));
}
/**
* Check file exists.
*
* @param string $filename Target file name
* @return bool Returns FALSE if the file does not exists, or Returns full path file(string).
*/
function exists($filename)
{
$filename = self::getRealPath($filename);
return file_exists($filename) ? $filename : FALSE;
}
/**
* Check it is dir
*
* @param string $dir Target dir path
* @return bool Returns FALSE if the dir is not dir, or Returns full path of dir(string).
*/
function isDir($path)
{
$path = self::getRealPath($path);
return is_dir($path) ? $path : FALSE;
}
/**
* Check is writable dir
*
* @param string $path Target dir path
* @return bool
*/
function isWritableDir($path)
{
$path = self::getRealPath($path);
if(is_dir($path)==FALSE)
{
return FALSE;
}
$checkFile = $path . '/_CheckWritableDir';
$fp = fopen($checkFile, 'w');
if(!is_resource($fp))
{
return FALSE;
}
fclose($fp);
self::removeFile($checkFile);
return TRUE;
}
}
/* End of file FileHandler.class.php */
/* Location: ./classes/file/FileHandler.class.php */