Allow setting inet_exposure from command line

Closes #1872

SABnzbd.py

@@ -206,6 +206,7 @@ def print_help():
     print("                              with full data reconstruction")
     print("      --https <port>          Port to use for HTTPS server")
     print("      --ipv6_hosting <0|1>    Listen on IPv6 address [::1] [*]")
+    print("      --inet_exposure <0..5>  Set external internet access [*]")
     print("      --no-login              Start with username and password reset")
     print("      --log-all               Log all article handling (for developers)")
     print("      --disable-file-log      Logging is only written to console")
@@ -778,10 +779,9 @@ def commandline_handler():
                 "server=",
                 "templates",
                 "ipv6_hosting=",
-                "template2",
+                "inet_exposure=",
                 "browser=",
                 "config-file=",
-                "force",
                 "disable-file-log",
                 "version",
                 "https=",
@@ -872,6 +872,7 @@ def main():
     pid_file = None
     new_instance = False
     ipv6_hosting = None
+    inet_exposure = None
 
     _service, sab_opts, _serv_opts, upload_nzbs = commandline_handler()
 
@@ -951,6 +952,8 @@ def main():
             new_instance = True
         elif opt == "--ipv6_hosting":
             ipv6_hosting = arg
+        elif opt == "--inet_exposure":
+            inet_exposure = arg
 
     sabnzbd.MY_FULLNAME = os.path.normpath(os.path.abspath(sabnzbd.MY_FULLNAME))
     sabnzbd.MY_NAME = os.path.basename(sabnzbd.MY_FULLNAME)
@@ -1362,6 +1365,10 @@ def main():
         sabnzbd.cfg.username.set("")
         sabnzbd.cfg.password.set("")
 
+    # Overwrite inet_exposure from command-line for VPS-setups
+    if inet_exposure:
+        sabnzbd.cfg.inet_exposure.set(inet_exposure)
+
     mime_gzip = (
         "text/*",
         "application/javascript",