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plugin/view: Advanced routing interface and new 'view' plugin (#5538)

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* introduce new interface "dnsserver.Viewer", that allows a plugin implementing it to decide if a query should be routed into its server block.
* add new plugin "view", that uses the new interface to enable a user to define expression based conditions that must be met for a query to be routed to its server block.

Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
This commit is contained in:
Chris O'Haver
2022-09-08 14:56:27 -04:00
committed by GitHub
parent 1f0a41a665
commit b56b080a7c
36 changed files with 880 additions and 114 deletions
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14
core/dnsserver/server_https.go
View File

@@ -50,9 +50,11 @@ func NewServerHTTPS(addr string, group []*Config) (*ServerHTTPS, error) {
// The *tls* plugin must make sure that multiple conflicting
// TLS configuration returns an error: it can only be specified once.
var tlsConfig *tls.Config
for _, conf := range s.zones {
// Should we error if some configs *don't* have TLS?
tlsConfig = conf.TLSConfig
for _, z := range s.zones {
for _, conf := range z {
// Should we error if some configs *don't* have TLS?
tlsConfig = conf.TLSConfig
}
}
// http/2 is recommended when using DoH. We need to specify it in next protos
@@ -63,8 +65,10 @@ func NewServerHTTPS(addr string, group []*Config) (*ServerHTTPS, error) {
// Use a custom request validation func or use the standard DoH path check.
var validator func(*http.Request) bool
for _, conf := range s.zones {
validator = conf.HTTPRequestValidateFunc
for _, z := range s.zones {
for _, conf := range z {
validator = conf.HTTPRequestValidateFunc
}
}
if validator == nil {
validator = func(r *http.Request) bool { return r.URL.Path == doh.Path }