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http.go
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http.go
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package http_transport
import (
"context"
"fmt"
"net"
"net/http"
"time"
"github.com/tkcrm/mx/logger"
)
type HttpServer struct {
Config
name string
handle http.Handler
server *http.Server
logger logger.ExtendedLogger
}
const defaultHTTPName = "http-server"
// NewServer creates http server.
func NewServer(opts ...Option) *HttpServer {
serve := &HttpServer{
name: defaultHTTPName,
logger: logger.DefaultExtended(),
Config: Config{Enabled: true},
}
for _, o := range opts {
o(serve)
}
return serve
}
// Name returns name of http server.
func (s HttpServer) Name() string { return s.name }
// Enabled returns is service enabled.
func (s HttpServer) Enabled() bool { return s.Config.Enabled }
// Start allows starting http server.
func (s *HttpServer) Start(ctx context.Context) error {
log := logger.WithExtended(
s.logger,
"name", s.name,
"address", s.Address,
"network", s.Network,
)
log.Infof("prepare listener %s on %s / %s",
s.name, s.Address, s.Network,
)
lis, err := new(net.ListenConfig).Listen(ctx, s.Network, s.Address)
if err != nil {
return err
}
handler := s.handle
if !s.NoTrace {
handler = TracingMiddleware(s.handle)
}
s.server = &http.Server{
// to prevent default std logger output
Handler: handler,
ErrorLog: log.Std(),
// G112: Potential Slowloris Attack because ReadHeaderTimeout is not configured in the http.Server
ReadHeaderTimeout: time.Second * 10,
ReadTimeout: 5 * time.Second,
WriteTimeout: 10 * time.Second,
IdleTimeout: 60 * time.Second,
}
errChan := make(chan error, 1)
go func() {
if err := s.server.Serve(lis); err != nil {
errChan <- err
}
}()
select {
case err := <-errChan:
return err
case <-ctx.Done():
}
return nil
}
// Stop allows stop http server.
func (s *HttpServer) Stop(ctx context.Context) error {
if s.server == nil {
return nil
}
if err := s.server.Shutdown(ctx); err != nil {
return fmt.Errorf("failed to stop server: %w", err)
}
return nil
}