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mirror of https://github.com/vichan-devel/vichan.git synced 2024-12-11 07:16:10 +01:00
vichan/inc/functions/fs.php
2024-02-03 17:17:14 +01:00

189 lines
4.1 KiB
PHP

<?php
defined('TINYBOARD') or exit;
function file_write($path, $data, $simple = false, $skip_purge = false) {
global $config, $debug;
if (preg_match('/^remote:\/\/(.+)\:(.+)$/', $path, $m)) {
if (isset($config['remote'][$m[1]])) {
require_once 'inc/remote.php';
$remote = new Remote($config['remote'][$m[1]]);
$remote->write($data, $m[2]);
return;
} else {
error('Invalid remote server: ' . $m[1]);
}
}
if (!$fp = fopen($path, $simple ? 'w' : 'c')) {
error('Unable to open file for writing: ' . $path);
}
// File locking
if (!$simple && !flock($fp, LOCK_EX)) {
error('Unable to lock file: ' . $path);
}
// Truncate file
if (!$simple && !ftruncate($fp, 0)) {
error('Unable to truncate file: ' . $path);
}
// Write data
if (($bytes = fwrite($fp, $data)) === false) {
error('Unable to write to file: ' . $path);
}
// Unlock
if (!$simple) {
flock($fp, LOCK_UN);
}
// Close
if (!fclose($fp)) {
error('Unable to close file: ' . $path);
}
/**
* Create gzipped file.
*
* When writing into a file foo.bar and the size is larger or equal to 1
* KiB, this also produces the gzipped version foo.bar.gz
*
* This is useful with nginx with gzip_static on.
*/
if ($config['gzip_static']) {
$gzpath = "$path.gz";
// if ($bytes >= 1024)
if ($bytes & ~0x3ff) {
if (file_put_contents($gzpath, gzencode($data), $simple ? 0 : LOCK_EX) === false) {
error("Unable to write to file: $gzpath");
}
}
else {
@unlink($gzpath);
}
}
if (!$skip_purge && isset($config['purge'])) {
// Purge cache
if (basename($path) == $config['file_index']) {
// Index file (/index.html); purge "/" as well
$uri = dirname($path);
// root
if ($uri == '.') {
$uri = '';
} else {
$uri .= '/';
}
purge($uri);
}
purge($path);
}
if ($config['debug']) {
$debug['write'][] = $path . ': ' . $bytes . ' bytes';
}
event('write', $path);
}
function file_unlink($path) {
global $config, $debug;
if ($config['debug']) {
if (!isset($debug['unlink'])) {
$debug['unlink'] = array();
}
$debug['unlink'][] = $path;
}
$ret = @unlink($path);
if ($config['gzip_static']) {
$gzpath = "$path.gz";
@unlink($gzpath);
}
if (isset($config['purge']) && $path[0] != '/' && isset($_SERVER['HTTP_HOST'])) {
// Purge cache
if (basename($path) == $config['file_index']) {
// Index file (/index.html); purge "/" as well
$uri = dirname($path);
// root
if ($uri == '.') {
$uri = '';
} else {
$uri .= '/';
}
purge($uri);
}
purge($path);
}
event('unlink', $path);
return $ret;
}
function purge($uri) {
global $config, $debug;
// Fix for Unicode
$uri = rawurlencode($uri);
$noescape = "/!~*()+:";
$noescape = preg_split('//', $noescape);
$noescape_url = array_map("rawurlencode", $noescape);
$uri = str_replace($noescape_url, $noescape, $uri);
if (preg_match($config['referer_match'], $config['root']) && isset($_SERVER['REQUEST_URI'])) {
$uri = (str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) == '/' ? '/' : str_replace('\\', '/', dirname($_SERVER['REQUEST_URI'])) . '/') . $uri;
} else {
$uri = $config['root'] . $uri;
}
if ($config['debug']) {
$debug['purge'][] = $uri;
}
foreach ($config['purge'] as &$purge) {
$host = &$purge[0];
$port = &$purge[1];
$http_host = isset($purge[2]) ? $purge[2] : (isset($_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : 'localhost');
$request = "PURGE {$uri} HTTP/1.1\r\nHost: {$http_host}\r\nUser-Agent: Tinyboard\r\nConnection: Close\r\n\r\n";
if ($fp = fsockopen($host, $port, $errno, $errstr, $config['purge_timeout'])) {
fwrite($fp, $request);
fclose($fp);
} else {
// Cannot connect?
error('Could not PURGE for ' . $host);
}
}
}
/**
* Recursively delete a directory with it's content.
*/
function rrmdir($dir) {
if (is_dir($dir)) {
$objects = scandir($dir);
foreach ($objects as $object) {
if ($object != "." && $object != "..") {
if (filetype($dir."/".$object) == "dir") {
rrmdir($dir."/".$object);
} else {
file_unlink($dir."/".$object);
}
}
}
reset($objects);
rmdir($dir);
}
}