Defines the base FileTransfer class.
Classes extending this class perform file operations on directories not writable by the webserver. To achieve this, the class should connect back to the server using some backend (for example FTP or SSH). To keep security, the password should always be asked from the user and never stored. For safety, all methods operate only inside a "jail", by default the Drupal root.
Hierarchy
class \Drupal\Core\FileTransfer\FileTransfer
File
core/lib/Drupal/Core/FileT