forked from prometheus/common
/
tls_config_test.go
134 lines (124 loc) · 3.72 KB
/
tls_config_test.go
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// Copyright 2016 The Prometheus 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 config
import (
"bytes"
"crypto/tls"
"fmt"
"os"
"path/filepath"
"reflect"
"strings"
"testing"
"encoding/json"
"gopkg.in/yaml.v2"
)
// LoadTLSConfig parses the given file into a tls.Config.
func LoadTLSConfig(filename string) (*tls.Config, error) {
content, err := os.ReadFile(filename)
if err != nil {
return nil, err
}
cfg := TLSConfig{}
switch filepath.Ext(filename) {
case ".yml":
if err = yaml.UnmarshalStrict(content, &cfg); err != nil {
return nil, err
}
case ".json":
decoder := json.NewDecoder(bytes.NewReader(content))
decoder.DisallowUnknownFields()
if err = decoder.Decode(&cfg); err != nil {
return nil, err
}
default:
return nil, fmt.Errorf("Unknown extension: %s", filepath.Ext(filename))
}
return NewTLSConfig(&cfg)
}
var expectedTLSConfigs = []struct {
filename string
config *tls.Config
}{
{
filename: "tls_config.empty.good.json",
config: &tls.Config{},
}, {
filename: "tls_config.insecure.good.json",
config: &tls.Config{InsecureSkipVerify: true},
}, {
filename: "tls_config.tlsversion.good.json",
config: &tls.Config{MinVersion: tls.VersionTLS11},
}, {
filename: "tls_config.max_version.good.json",
config: &tls.Config{MaxVersion: tls.VersionTLS12},
},
{
filename: "tls_config.empty.good.yml",
config: &tls.Config{},
}, {
filename: "tls_config.insecure.good.yml",
config: &tls.Config{InsecureSkipVerify: true},
}, {
filename: "tls_config.tlsversion.good.yml",
config: &tls.Config{MinVersion: tls.VersionTLS11},
}, {
filename: "tls_config.max_version.good.yml",
config: &tls.Config{MaxVersion: tls.VersionTLS12},
}, {
filename: "tls_config.max_and_min_version.good.yml",
config: &tls.Config{MaxVersion: tls.VersionTLS12, MinVersion: tls.VersionTLS11},
}, {
filename: "tls_config.max_and_min_version_same.good.yml",
config: &tls.Config{MaxVersion: tls.VersionTLS12, MinVersion: tls.VersionTLS12},
},
}
func TestValidTLSConfig(t *testing.T) {
for _, cfg := range expectedTLSConfigs {
got, err := LoadTLSConfig("testdata/" + cfg.filename)
if err != nil {
t.Fatalf("Error parsing %s: %s", cfg.filename, err)
}
// non-nil functions are never equal.
got.GetClientCertificate = nil
if !reflect.DeepEqual(got, cfg.config) {
t.Fatalf("%v: unexpected config result: \n\n%v\n expected\n\n%v", cfg.filename, got, cfg.config)
}
}
}
var invalidTLSConfigs = []struct {
filename string
errMsg string
}{
{
filename: "tls_config.max_and_min_version.bad.yml",
errMsg: "tls_config.max_version must be greater than or equal to tls_config.min_version if both are specified",
},
}
func TestInvalidTLSConfig(t *testing.T) {
for _, ee := range invalidTLSConfigs {
_, err := LoadTLSConfig("testdata/" + ee.filename)
if err == nil {
t.Error("Expected error with config but got none")
continue
}
if !strings.Contains(err.Error(), ee.errMsg) {
t.Errorf("Expected error for invalid HTTP client configuration to contain %q but got: %s", ee.errMsg, err)
}
}
}
func TestStringer(t *testing.T) {
if s := (TLSVersion)(tls.VersionTLS13); s.String() != "TLS13" {
t.Fatalf("tls.VersionTLS13 string should be TLS13, got %s", s.String())
}
}