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[rewrite] Introduce cname target rewrite rule to rewrite plugin (#6004)

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* cname target rewrite part in answer sec
tion

Signed-off-by: amila <amila.15@cse.mrt.ac.lk>

* upstream request

Signed-off-by: amila <amila.15@cse.mrt.ac.lk>

* fix looping issue

Signed-off-by: amila <amila.15@cse.mrt.ac.lk>

* support exact, prefix, suffix, substring, and regex types for cname rewrite

Signed-off-by: amila <amila.15@cse.mrt.ac.lk>

* support any qtype, corrected prefix, suffix, substring types behavior

Signed-off-by: amila <amila.15@cse.mrt.ac.lk>

* unit tests added, mocked the upstream call

Signed-off-by: amila <amila.15@cse.mrt.ac.lk>

* fix lint errors

Signed-off-by: amila <amila.15@cse.mrt.ac.lk>

* add newline to fix test issue

Signed-off-by: amila <amila.15@cse.mrt.ac.lk>

* add default rewrite type, add readme

Signed-off-by: amila <amila.15@cse.mrt.ac.lk>

* readme grammar fix

Signed-off-by: amila <amila.15@cse.mrt.ac.lk>

* reuse rewrite types

Signed-off-by: amila <amila.15@cse.mrt.ac.lk>

* comment fixed

Signed-off-by: amila <amila.15@cse.mrt.ac.lk>

---------

Signed-off-by: amila <amila.15@cse.mrt.ac.lk>
This commit is contained in:
Amila Senadheera
2023-04-13 17:49:36 +05:30
committed by GitHub
parent 0063d7a80c
commit 8e8231d627
7 changed files with 362 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
plugin/rewrite/name.go
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@@ -92,7 +92,7 @@ type nameRewriterResponseRule struct {
stringRewriter
}
func (r *nameRewriterResponseRule) RewriteResponse(rr dns.RR) {
func (r *nameRewriterResponseRule) RewriteResponse(res *dns.Msg, rr dns.RR) {
rr.Header().Name = r.rewriteString(rr.Header().Name)
}
@@ -101,7 +101,7 @@ type valueRewriterResponseRule struct {
stringRewriter
}
func (r *valueRewriterResponseRule) RewriteResponse(rr dns.RR) {
func (r *valueRewriterResponseRule) RewriteResponse(res *dns.Msg, rr dns.RR) {
value := getRecordValueForRewrite(rr)
if value != "" {
new := r.rewriteString(value)