python based ftp server

third_party/pyftpdlib/demo/basic_ftpd.py

Index: third_party/pyftpdlib/demo/basic_ftpd.py
===================================================================
--- third_party/pyftpdlib/demo/basic_ftpd.py	(revision 0)
+++ third_party/pyftpdlib/demo/basic_ftpd.py	(revision 0)
@@ -0,0 +1,44 @@
+#!/usr/bin/env python
+# basic_ftpd.py
+
+"""A basic FTP server which uses a DummyAuthorizer for managing 'virtual
+users', setting a limit for incoming connections.
+"""
+
+import os
+
+from pyftpdlib import ftpserver
+
+
+if __name__ == "__main__":
+
+    # Instantiate a dummy authorizer for managing 'virtual' users
+    authorizer = ftpserver.DummyAuthorizer()
+
+    # Define a new user having full r/w permissions and a read-only
+    # anonymous user
+    authorizer.add_user('user', '12345', os.getcwd(), perm='elradfmw')
+    authorizer.add_anonymous(os.getcwd())
+
+    # Instantiate FTP handler class
+    ftp_handler = ftpserver.FTPHandler
+    ftp_handler.authorizer = authorizer
+
+    # Define a customized banner (string returned when client connects)
+    ftp_handler.banner = "pyftpdlib %s based ftpd ready." %ftpserver.__ver__
+
+    # Specify a masquerade address and the range of ports to use for
+    # passive connections.  Decomment in case you're behind a NAT.
+    #ftp_handler.masquerade_address = '151.25.42.11'
+    #ftp_handler.passive_ports = range(60000, 65535)
+
+    # Instantiate FTP server class and listen to 0.0.0.0:21
+    address = ('', 21)
+    ftpd = ftpserver.FTPServer(address, ftp_handler)
+
+    # set a limit for connections
+    ftpd.max_cons = 256
+    ftpd.max_cons_per_ip = 5
+
+    # start ftp server
+    ftpd.serve_forever()