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http.go
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http.go
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// Package http provides a http server with features; acme, cors, etc
package http
import (
"crypto/tls"
"net"
"net/http"
"os"
"sync"
"github.com/gorilla/handlers"
"github.com/macheal/go-micro/v2/api/server"
"github.com/macheal/go-micro/v2/api/server/cors"
"github.com/macheal/go-micro/v2/logger"
)
type httpServer struct {
mux *http.ServeMux
opts server.Options
mtx sync.RWMutex
address string
exit chan chan error
}
func NewServer(address string, opts ...server.Option) server.Server {
var options server.Options
for _, o := range opts {
o(&options)
}
return &httpServer{
opts: options,
mux: http.NewServeMux(),
address: address,
exit: make(chan chan error),
}
}
func (s *httpServer) Address() string {
s.mtx.RLock()
defer s.mtx.RUnlock()
return s.address
}
func (s *httpServer) Init(opts ...server.Option) error {
for _, o := range opts {
o(&s.opts)
}
return nil
}
func (s *httpServer) Handle(path string, handler http.Handler) {
// TODO: move this stuff out to one place with ServeHTTP
// apply the wrappers, e.g. auth
for _, wrapper := range s.opts.Wrappers {
handler = wrapper(handler)
}
// wrap with cors
if s.opts.EnableCORS {
handler = cors.CombinedCORSHandler(handler)
}
// wrap with logger
handler = handlers.CombinedLoggingHandler(os.Stdout, handler)
s.mux.Handle(path, handler)
}
func (s *httpServer) Start() error {
var l net.Listener
var err error
if s.opts.EnableACME && s.opts.ACMEProvider != nil {
// should we check the address to make sure its using :443?
l, err = s.opts.ACMEProvider.Listen(s.opts.ACMEHosts...)
} else if s.opts.EnableTLS && s.opts.TLSConfig != nil {
l, err = tls.Listen("tcp", s.address, s.opts.TLSConfig)
} else {
// otherwise plain listen
l, err = net.Listen("tcp", s.address)
}
if err != nil {
return err
}
if logger.V(logger.InfoLevel, logger.DefaultLogger) {
logger.Infof("HTTP API Listening on %s", l.Addr().String())
}
s.mtx.Lock()
s.address = l.Addr().String()
s.mtx.Unlock()
go func() {
if err := http.Serve(l, s.mux); err != nil {
// temporary fix
//logger.Fatal(err)
}
}()
go func() {
ch := <-s.exit
ch <- l.Close()
}()
return nil
}
func (s *httpServer) Stop() error {
ch := make(chan error)
s.exit <- ch
return <-ch
}
func (s *httpServer) String() string {
return "http"
}