function FileTransfer::findChroot

Returns the chroot property for this connection.

It does this by moving up the tree until it finds itself

Return value

string|bool If successful, the chroot path for this connection, otherwise FALSE.

File

core/lib/Drupal/Core/FileTransfer/FileTransfer.php, line 411

Class

FileTransfer

Defines the base FileTransfer class.

Namespace

Code

public function findChroot() {
    // If the file exists as is, there is no chroot.
    $path = __FILE__;
    $path = $this->fixRemotePath($path, FALSE);
    if ($this->isFile($path)) {
        return FALSE;
    }
    $path = __DIR__;
    $path = $this->fixRemotePath($path, FALSE);
    $parts = explode('/', $path);
    $chroot = '';
    while (count($parts)) {
        $check = implode('/', $parts);
        if ($this->isFile($check . '/' . \Drupal::service('file_system')->basename(__FILE__))) {
            // Remove the trailing slash.
            return substr($chroot, 0, -1);
        }
        $chroot .= array_shift($parts) . '/';
    }
    return FALSE;
}