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minio/pkg/http/server.go

134 lines
3.1 KiB

/*
/*
* Mini Object Storage, (C) 2014 Minio, Inc.
*
* 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 http implements a wrapper around golang's own http.Server
package http
import (
"crypto/rand"
"crypto/tls"
"fmt"
"io/ioutil"
"log"
"net"
"net/http"
"sync"
"time"
)
type Server struct {
mux *http.ServeMux
listener net.Listener
enableTLS bool
tlsCertFile string
tlsKeyFile string
mu sync.Mutex
}
// Enable tls
func (s *Server) EnableTLS(certFile, keyFile string) {
s.enableTLS = true
s.tlsCertFile = certFile
s.tlsKeyFile = keyFile
}
// Get Listen URL
func (s *Server) GetlistenURL() string {
scheme := "http"
if s.enableTLS {
scheme = "https"
}
if s.listener != nil {
if taddr, ok := s.listener.Addr().(*net.TCPAddr); ok {
if taddr.IP.IsUnspecified() {
return fmt.Sprintf("%s://localhost:%d", scheme, taddr.Port)
}
return fmt.Sprintf("%s://%s", scheme, s.listener.Addr())
}
}
return ""
}
func (s *Server) HandleFunc(pattern string, fn func(http.ResponseWriter, *http.Request)) {
s.mux.HandleFunc(pattern, fn)
}
func (s *Server) Handle(pattern string, handler http.Handler) {
s.mux.Handle(pattern, handler)
}
func (s *Server) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
s.mux.ServeHTTP(rw, req)
}
// Listen starts listening on the given host:port addr.
func (s *Server) Listen(addr string) error {
if s.listener != nil {
return nil
}
if addr == "" {
return fmt.Errorf("<host>:<port> needs to be provided to start listening")
}
var err error
_, _, err = net.SplitHostPort(addr)
if err != nil {
return fmt.Errorf("Failed to split %s: %v", addr, err)
}
s.listener, err = net.Listen("tcp", addr)
if err != nil {
return fmt.Errorf("Failed to listen on %s: %v", addr, err)
}
log.Printf("Starting to listen on %s\n", s.GetlistenURL())
if s.enableTLS {
config := &tls.Config{
Rand: rand.Reader,
Time: time.Now,
NextProtos: []string{"http/1.1"},
}
config.Certificates = make([]tls.Certificate, 1)
config.Certificates[0], err = loadX509KeyPair(s.tlsCertFile, s.tlsKeyFile)
if err != nil {
return fmt.Errorf("Failed to load TLS cert: %v", err)
}
s.listener = tls.NewListener(s.listener, config)
}
return nil
}
func NewServer() *Server {
return &Server{
mux: http.NewServeMux(),
}
}
func loadX509KeyPair(certFile, keyFile string) (cert tls.Certificate, err error) {
certPEMBlock, err := ioutil.ReadFile(certFile)
if err != nil {
return
}
keyPEMBlock, err := ioutil.ReadFile(keyFile)
if err != nil {
return
}
return tls.X509KeyPair(certPEMBlock, keyPEMBlock)
}