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https://github.com/caddyserver/caddy.git
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6e2de19d9f
* tls: Fall back to certificate keyed by empty name (fixes #2035) This should only happen for sites defined with an empty hostname (like ":8080") and which are using self-signed certificates or some other funky self-managed certificate. But that certificate should arguably be used for all incoming SNI names. * tls: Revert to serving any certificate if no match, regardless of SNI Also fix self-signed certs to include IP addresses in their name if they are configured to serve an IP address * Remove tests which are now irrelevant (behavior reverted) It would be good to revisit this in the future.
78 lines
3.2 KiB
Go
78 lines
3.2 KiB
Go
// Copyright 2015 Light Code Labs, LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package caddytls
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import (
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"crypto/tls"
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"crypto/x509"
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"testing"
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)
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func TestGetCertificate(t *testing.T) {
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certCache := &certificateCache{cache: make(map[string]Certificate)}
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cfg := &Config{Certificates: make(map[string]string), certCache: certCache}
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hello := &tls.ClientHelloInfo{ServerName: "example.com"}
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helloSub := &tls.ClientHelloInfo{ServerName: "sub.example.com"}
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helloNoSNI := &tls.ClientHelloInfo{}
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// helloNoMatch := &tls.ClientHelloInfo{ServerName: "nomatch"} // TODO (see below)
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// When cache is empty
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if cert, err := cfg.GetCertificate(hello); err == nil {
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t.Errorf("GetCertificate should return error when cache is empty, got: %v", cert)
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}
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if cert, err := cfg.GetCertificate(helloNoSNI); err == nil {
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t.Errorf("GetCertificate should return error when cache is empty even if server name is blank, got: %v", cert)
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}
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// When cache has one certificate in it
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firstCert := Certificate{Names: []string{"example.com"}, Certificate: tls.Certificate{Leaf: &x509.Certificate{DNSNames: []string{"example.com"}}}}
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cfg.cacheCertificate(firstCert)
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if cert, err := cfg.GetCertificate(hello); err != nil {
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t.Errorf("Got an error but shouldn't have, when cert exists in cache: %v", err)
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} else if cert.Leaf.DNSNames[0] != "example.com" {
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t.Errorf("Got wrong certificate with exact match; expected 'example.com', got: %v", cert)
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}
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if _, err := cfg.GetCertificate(helloNoSNI); err != nil {
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t.Errorf("Got an error with no SNI but shouldn't have, when cert exists in cache: %v", err)
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}
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// When retrieving wildcard certificate
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wildcardCert := Certificate{
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Names: []string{"*.example.com"},
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Certificate: tls.Certificate{Leaf: &x509.Certificate{DNSNames: []string{"*.example.com"}}},
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Hash: "(don't overwrite the first one)",
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}
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cfg.cacheCertificate(wildcardCert)
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if cert, err := cfg.GetCertificate(helloSub); err != nil {
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t.Errorf("Didn't get wildcard cert, got: cert=%v, err=%v ", cert, err)
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} else if cert.Leaf.DNSNames[0] != "*.example.com" {
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t.Errorf("Got wrong certificate, expected wildcard: %v", cert)
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}
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// When cache is NOT empty but there's no SNI
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if cert, err := cfg.GetCertificate(helloNoSNI); err != nil {
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t.Errorf("Expected random certificate with no error when no SNI, got err: %v", err)
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} else if cert == nil || len(cert.Leaf.DNSNames) == 0 {
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t.Errorf("Expected random cert with no matches, got: %v", cert)
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}
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// TODO: Re-implement this behavior (it was reverted in #2037)
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// When no certificate matches, raise an alert
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// if _, err := cfg.GetCertificate(helloNoMatch); err == nil {
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// t.Errorf("Expected an error when no certificate matched the SNI, got: %v", err)
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// }
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}
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