/
http.go
132 lines (123 loc) · 3.68 KB
/
http.go
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// Copyright 2023 Nautes 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 server
import (
"context"
"crypto/tls"
"crypto/x509"
"os"
"regexp"
v1 "github.com/nautes-labs/vault-proxy/api/vaultproxy/v1"
"github.com/nautes-labs/vault-proxy/internal/biz/auth"
"github.com/nautes-labs/vault-proxy/internal/conf"
"github.com/nautes-labs/vault-proxy/internal/service"
"github.com/go-kratos/kratos/v2/log"
"github.com/go-kratos/kratos/v2/middleware/recovery"
"github.com/go-kratos/kratos/v2/middleware/selector"
"github.com/go-kratos/kratos/v2/middleware/validate"
"github.com/go-kratos/kratos/v2/transport/http"
"github.com/go-kratos/swagger-api/openapiv2"
)
var (
BasicAPIList = []string{
`\/api\.vaultproxy\.v1\.Secret\/.*`,
`\/api\.vaultproxy\.v1\.Auth\/.*`,
}
GrantAPIList = []string{
`\/api\.vaultproxy\.v1\.AuthGrant\/.*`,
}
)
func getCheckList(checkType int) selector.MatchFunc {
var checkList []string
switch checkType {
case auth.BASIC:
checkList = BasicAPIList
case auth.GRANT:
checkList = GrantAPIList
}
return func(ctx context.Context, operation string) bool {
for _, v := range checkList {
ok, err := regexp.MatchString(v, operation)
if err != nil {
return false
}
if ok {
return true
}
}
return false
}
}
// Start a new http server, it has following step
//
// 1. Add several middleware(authentication , authorization, tracing)
// 2. Read http basic setting from configmap, and append http server options list
// 3. Make a http instance
// 4. Regist api to it
func NewHTTPServer(c *conf.Server,
secretService *service.SecretService,
authService *service.AuthService,
authGrantService *service.AuthGrantService,
healthService *service.HealthService,
_ log.Logger) *http.Server {
var opts = []http.ServerOption{
http.Middleware(
validate.Validator(),
recovery.Recovery(),
selector.Server(
auth.Authenticate(),
auth.Authorize(c, auth.BASIC),
).Match(getCheckList(auth.BASIC)).Build(),
selector.Server(
auth.Authenticate(),
auth.Authorize(c, auth.GRANT),
).Match(getCheckList(auth.GRANT)).Build(),
),
}
if c.Http.Network != "" {
opts = append(opts, http.Network(c.Http.Network))
}
if c.Http.Addr != "" {
opts = append(opts, http.Address(c.Http.Addr))
}
if c.Http.Timeout != nil {
opts = append(opts, http.Timeout(c.Http.Timeout.AsDuration()))
}
if c.Http.Cert != nil {
cert, err := tls.LoadX509KeyPair(c.Http.Cert.CertFile, c.Http.Cert.KeyFile)
if err != nil {
log.Fatal(err) //nolint:revive
}
caCert, err := os.ReadFile(c.Http.Cert.CaCert)
if err != nil {
log.Fatal(err) //nolint:revive
}
caCertPool := x509.NewCertPool()
caCertPool.AppendCertsFromPEM(caCert)
tlsConfig := &tls.Config{
ClientCAs: caCertPool,
ClientAuth: tls.VerifyClientCertIfGiven,
Certificates: []tls.Certificate{cert},
}
opts = append(opts, http.TLSConfig(tlsConfig))
}
srv := http.NewServer(opts...)
openAPIhandler := openapiv2.NewHandler()
srv.HandlePrefix("/q/", openAPIhandler)
v1.RegisterSecretHTTPServer(srv, secretService)
v1.RegisterAuthHTTPServer(srv, authService)
v1.RegisterAuthGrantHTTPServer(srv, authGrantService)
v1.RegisterHealthHTTPServer(srv, healthService)
return srv
}