Add basic interface

server.py

@@ -0,0 +1,47 @@
+#!/usr/bin/env python3
+"""HKP server
+
+Uses the python http.server module to create an HKP keyserver (pykeyserver)
+
+Functions:
+
+    port(number or string or bytes or bytearray) -> 16 bit integer"""
+
+import ipaddress
+import argparse
+
+
+def port(val):
+    """Restrict port values to the TCP range.
+
+    Receives a number or a string, bytes, or bytearray instance representing an
+    integer literal.
+    Raises ValueError if it's not a number or if the number falls outside TCP
+    port range."""
+    num = int(val)
+    if num < 1:
+        raise ValueError
+    if num.bit_length() > 16:
+        raise ValueError
+    return num
+
+
+def main():
+    """HKP server main function"""
+    parser = argparse.ArgumentParser(description='Basic HKP keyserver')
+    parser.add_argument('--address',
+                        type=ipaddress.ip_address,
+                        help='IP for server interface',
+                        default=ipaddress.ip_address('127.0.0.1'))
+    parser.add_argument('--port',
+                        type=port,
+                        help='TCP Port for server interface',
+                        default=port(11371))
+
+    args = parser.parse_args()
+
+    print(f'Server address parsed as {args.address}, port as {args.port}')
+
+
+if __name__ == '__main__':
+    main()