mirror of
https://github.com/caddyserver/caddy.git
synced 2024-12-26 21:53:48 +03:00
caddytls: Support wildcard matching in ServerName conn policy matcher
This commit is contained in:
parent
b583007c49
commit
3c1def2430
3 changed files with 105 additions and 2 deletions
|
@ -76,6 +76,7 @@ func (cp ConnectionPolicies) TLSConfig(ctx caddy.Context) *tls.Config {
|
|||
// using ServerName to match policies is extremely common, especially in configs
|
||||
// with lots and lots of different policies; we can fast-track those by indexing
|
||||
// them by SNI, so we don't have to iterate potentially thousands of policies
|
||||
// (TODO: this map does not account for wildcards, see if this is a problem in practice?)
|
||||
indexedBySNI := make(map[string]ConnectionPolicies)
|
||||
if len(cp) > 30 {
|
||||
for _, p := range cp {
|
||||
|
|
|
@ -16,6 +16,7 @@ package caddytls
|
|||
|
||||
import (
|
||||
"crypto/tls"
|
||||
"strings"
|
||||
|
||||
"github.com/caddyserver/caddy/v2"
|
||||
)
|
||||
|
@ -24,7 +25,9 @@ func init() {
|
|||
caddy.RegisterModule(MatchServerName{})
|
||||
}
|
||||
|
||||
// MatchServerName matches based on SNI.
|
||||
// MatchServerName matches based on SNI. Names in
|
||||
// this list may use left-most-label wildcards,
|
||||
// similar to wildcard certificates.
|
||||
type MatchServerName []string
|
||||
|
||||
// CaddyModule returns the Caddy module information.
|
||||
|
@ -38,10 +41,23 @@ func (MatchServerName) CaddyModule() caddy.ModuleInfo {
|
|||
// Match matches hello based on SNI.
|
||||
func (m MatchServerName) Match(hello *tls.ClientHelloInfo) bool {
|
||||
for _, name := range m {
|
||||
// TODO: support wildcards (and regex?)
|
||||
if hello.ServerName == name {
|
||||
return true
|
||||
}
|
||||
|
||||
// check for wildcard match on this name, but only
|
||||
// bother if there is even a wildcard character
|
||||
if !strings.Contains(name, "*") {
|
||||
continue
|
||||
}
|
||||
labels := strings.Split(hello.ServerName, ".")
|
||||
for i := range labels {
|
||||
labels[i] = "*"
|
||||
candidate := strings.Join(labels, ".")
|
||||
if candidate == name {
|
||||
return true
|
||||
}
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
|
86
modules/caddytls/matchers_test.go
Normal file
86
modules/caddytls/matchers_test.go
Normal file
|
@ -0,0 +1,86 @@
|
|||
// Copyright 2015 Matthew Holt and The Caddy Authors
|
||||
//
|
||||
// Licensed under the Apache License, Version 2.0 (the "License");
|
||||
// you may not use this file except in compliance with the License.
|
||||
// You may obtain a copy of the License at
|
||||
//
|
||||
// http://www.apache.org/licenses/LICENSE-2.0
|
||||
//
|
||||
// Unless required by applicable law or agreed to in writing, software
|
||||
// distributed under the License is distributed on an "AS IS" BASIS,
|
||||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
// See the License for the specific language governing permissions and
|
||||
// limitations under the License.
|
||||
|
||||
package caddytls
|
||||
|
||||
import (
|
||||
"crypto/tls"
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestServerNameMatcher(t *testing.T) {
|
||||
for i, tc := range []struct {
|
||||
names []string
|
||||
input string
|
||||
expect bool
|
||||
}{
|
||||
{
|
||||
names: []string{"example.com"},
|
||||
input: "example.com",
|
||||
expect: true,
|
||||
},
|
||||
{
|
||||
names: []string{"example.com"},
|
||||
input: "foo.com",
|
||||
expect: false,
|
||||
},
|
||||
{
|
||||
names: []string{"example.com"},
|
||||
input: "",
|
||||
expect: false,
|
||||
},
|
||||
{
|
||||
names: []string{},
|
||||
input: "",
|
||||
expect: false,
|
||||
},
|
||||
{
|
||||
names: []string{"foo", "example.com"},
|
||||
input: "example.com",
|
||||
expect: true,
|
||||
},
|
||||
{
|
||||
names: []string{"foo", "example.com"},
|
||||
input: "sub.example.com",
|
||||
expect: false,
|
||||
},
|
||||
{
|
||||
names: []string{"foo", "example.com"},
|
||||
input: "foo.com",
|
||||
expect: false,
|
||||
},
|
||||
{
|
||||
names: []string{"*.example.com"},
|
||||
input: "example.com",
|
||||
expect: false,
|
||||
},
|
||||
{
|
||||
names: []string{"*.example.com"},
|
||||
input: "sub.example.com",
|
||||
expect: true,
|
||||
},
|
||||
{
|
||||
names: []string{"*.example.com", "*.sub.example.com"},
|
||||
input: "sub2.sub.example.com",
|
||||
expect: true,
|
||||
},
|
||||
} {
|
||||
chi := &tls.ClientHelloInfo{ServerName: tc.input}
|
||||
actual := MatchServerName(tc.names).Match(chi)
|
||||
if actual != tc.expect {
|
||||
t.Errorf("Test %d: Expected %t but got %t (input=%s match=%v)",
|
||||
i, tc.expect, actual, tc.input, tc.names)
|
||||
}
|
||||
}
|
||||
}
|
Loading…
Reference in a new issue