* plugin/rewrite: streamline the ResponseRule handling.
The functionality of a response rule is now completely encapsulated behind
a `ResponseRule` interface. This significantly simplifies the complete
processing flow, it enables more flexible response handling and it is possible
to eliminate lots of state flags, ifs and switches.
Based on the new flexibility the pull request also enables to support a
response name rewrite for all name rewrite types.
To be compatible, an explicit `answer auto` option is added to support
a best effort response rewrite (name and value).
Additionally now all name rewrite rules support additional name and value
reponse rewrite options.
Using this feature it is also possible now to rewrite a complete sub domain
hierarchy to a single domain name combined with a correct rewrite (#2389).
Signed-off-by: Uwe Krueger <uwe.krueger@sap.com>
* revert policy
Signed-off-by: Uwe Krueger <uwe.krueger@sap.com>
Co-authored-by: Miek Gieben <miek@miek.nl>
* Rewrite plugin - rewrite SRV targets and names in response answer and additional records
Signed-off-by: Nic Colledge <nic@njcolledge.net>
* Added README content to describe new behaviour
Signed-off-by: Nic Colledge <nic@njcolledge.net>
* Added more record types to rewrite handling based on PR/Issue feedback
Signed-off-by: Nic Colledge <nic@njcolledge.net>
* Updated README.md for plugin
Signed-off-by: Nic Colledge <nic@njcolledge.net>
* Updated unit tests.
Small refactor of getTarget... function.
Signed-off-by: Nic Colledge <nic@njcolledge.net>
* Refactor to add response value rewrite as answer value option
Signed-off-by: Nic Colledge <nic@njcolledge.net>
* Removed TODO comment, added test for NAPTR record.
Signed-off-by: Nic Colledge <nic@njcolledge.net>
* global: move to context
Move from golang.org/x/net/context to std lib's context.
Change done with:
for i in $(grep -l '/context' **/*.go); do sed -e 's|golang.org/x/net/context|context|' -i $i; echo $i; done
for i in **/*.go; do goimports -w $i; done
* drop from dns.pb.go as well
