mirror of
https://github.com/harness/drone.git
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85 lines
2.6 KiB
Go
85 lines
2.6 KiB
Go
// Source: https://github.com/goharbor/harbor
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// Copyright 2016 Project Harbor Authors
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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 http
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import (
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"crypto/tls"
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"fmt"
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"os"
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"strings"
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)
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const (
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// Internal TLS ENV.
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internalTLSEnable = "GITNESS_INTERNAL_TLS_ENABLED"
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internalVerifyClientCert = "GITNESS_INTERNAL_VERIFY_CLIENT_CERT"
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internalTLSKeyPath = "GITNESS_INTERNAL_TLS_KEY_PATH"
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internalTLSCertPath = "GITNESS_INTERNAL_TLS_CERT_PATH"
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)
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// InternalTLSEnabled returns true if internal TLS enabled.
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func InternalTLSEnabled() bool {
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return strings.ToLower(os.Getenv(internalTLSEnable)) == "true"
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}
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// InternalEnableVerifyClientCert returns true if mTLS enabled.
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func InternalEnableVerifyClientCert() bool {
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return strings.ToLower(os.Getenv(internalVerifyClientCert)) == "true"
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}
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// GetInternalCertPair used to get internal cert and key pair from environment.
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func GetInternalCertPair() (tls.Certificate, error) {
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crtPath := os.Getenv(internalTLSCertPath)
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keyPath := os.Getenv(internalTLSKeyPath)
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return tls.LoadX509KeyPair(crtPath, keyPath)
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}
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// GetInternalTLSConfig return a tls.Config for internal https communicate.
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func GetInternalTLSConfig() (*tls.Config, error) {
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// genrate key pair
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cert, err := GetInternalCertPair()
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if err != nil {
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return nil, fmt.Errorf("internal TLS enabled but can't get cert file %w", err)
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}
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return &tls.Config{
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Certificates: []tls.Certificate{cert},
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MinVersion: tls.VersionTLS12,
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}, nil
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}
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// NewServerTLSConfig returns a modern tls config,
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// refer to https://blog.cloudflare.com/exposing-go-on-the-internet/
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func NewServerTLSConfig() *tls.Config {
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return &tls.Config{
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PreferServerCipherSuites: true,
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CurvePreferences: []tls.CurveID{
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tls.CurveP256,
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tls.X25519,
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},
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MinVersion: tls.VersionTLS12,
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CipherSuites: []uint16{
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tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
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tls.TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,
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tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
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tls.TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,
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tls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
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tls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
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},
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}
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}
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