function pieTempName($file)
{
$path = $GLOBALS['pie']['run_path'] . "/temp/" . pieEncodeName($file);
if (@$GLOBALS['pie']['user']) {
$path .= "." . $GLOBALS['pie']['user'];
}
return $path;
}
function unlock($user)
{
// Expire existing locks:
$file = $GLOBALS['pie']['run_path'] . '/lock';
if (!is_dir($file)) {
return false;
}
if (!is_writable($file)) {
return false;
}
if ($GLOBALS['pie']['edit_timeout']) {
pieExpireDirectory($file, $GLOBALS['pie']['edit_timeout']);
}
// Remove lock file, if owner matches:
$file = "{$file}/" . pieEncodeName($this->name);
if (file_exists($file)) {
list($current) = file($file);
if (trim($current) != $user) {
return false;
}
return unlink($file);
}
return false;
}
// The upload is an update by the same user.
// Delete the previous version before saving the new one.
if (!$file->replace($name)) {
pieError("FileWriteError");
}
}
}
// Check for cached thumbnail images of former versions.
if ($GLOBALS['pie']['image_caching']) {
$cache = new Cache();
$cid = $cache->key('image', array('file' => $name));
if ($cache->exists($cid)) {
$cache->delete($cid);
}
} else {
$thumbnail = $GLOBALS['pie']['run_path'] . "/temp/_thumbnail_" . pieEncodeName($name);
if (file_exists($thumbnail)) {
unlink($thumbnail);
}
}
// Prepare meta data of the file:
$file->name = $name;
$file->meta = array('stamp' => time(), 'author' => $GLOBALS['pie']['user']);
// .. file size
if ($_FILES['upload']['size']) {
$file->meta['size'] = $_FILES['upload']['size'];
} else {
$file->meta['size'] = filesize(pieTempName("_upload"));
}
// .. file type
if (preg_match('/^[a-z]+\\/[a-z]+[\\w\\-\\+\\.]*\\w+$/', $_FILES['upload']['type'])) {
function isValidName($name)
{
if (strlen(pieEncodeName($name)) > 253) {
return false;
}
if ($GLOBALS['pie']['file_pattern']) {
if (!pieCheckPattern($GLOBALS['pie']['file_pattern'], $name)) {
return false;
}
}
return true;
}