Select Code to Download

1 map http://www.digitalcity.com http://origin-www.digitalcity.com
2 map tunnel://www.digitalcity.com tunnel://origin-www.digitalcity.com
...
4 map tunnel://10.0.2.1 tunnel://origin-www.digitalcity.com
5 reverse_map http://origin-www.digitalcity.com http://www.digitalcity
+.com
6 reverse_map tunnel://origin-www.digitalcity.com tunnel://www.digital
+city.com

# pseudo-code

...
populate template 
if the completed template is seen in the file, we're ok,
if not, die, and take action.

#!/usr/bin/perl -w

...
{$d} map {$proto}://{$uri1} {$proto}://{$uri2}
{$d} reverse_map {$proto}://{$uri2}://{$proto}://{$uri1}
{$d} reverse_map {$proto}://{$uri2} {$proto}://{$uri1}