harness-drone/server/server_oss.go
2019-04-25 18:07:28 -07:00

90 lines
1.8 KiB
Go

// Copyright 2019 Drone IO, 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.
// +build oss
package server
import (
"context"
"net/http"
"golang.org/x/sync/errgroup"
)
// A Server defines parameters for running an HTTP server.
type Server struct {
Acme bool
Addr string
Cert string
Key string
Host string
Handler http.Handler
}
// ListenAndServe initializes a server to respond to HTTP network requests.
func (s Server) ListenAndServe(ctx context.Context) error {
if s.Key != "" {
return s.listenAndServeTLS(ctx)
}
return s.listenAndServe(ctx)
}
func (s Server) listenAndServe(ctx context.Context) error {
var g errgroup.Group
s1 := &http.Server{
Addr: s.Addr,
Handler: s.Handler,
}
g.Go(func() error {
select {
case <-ctx.Done():
return s1.Shutdown(ctx)
}
})
g.Go(func() error {
return s1.ListenAndServe()
})
return g.Wait()
}
func (s Server) listenAndServeTLS(ctx context.Context) error {
var g errgroup.Group
s1 := &http.Server{
Addr: ":http",
Handler: s.Handler,
}
s2 := &http.Server{
Addr: ":https",
Handler: s.Handler,
}
g.Go(func() error {
return s1.ListenAndServe()
})
g.Go(func() error {
return s2.ListenAndServeTLS(
s.Cert,
s.Key,
)
})
g.Go(func() error {
select {
case <-ctx.Done():
s1.Shutdown(ctx)
s2.Shutdown(ctx)
return nil
}
})
return g.Wait()
}