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|
package server
import (
"context"
"fmt"
"net"
"net/http"
"strings"
"time"
)
const (
EndpointAddChain = "/add-chain"
EndpointGetStatus = "/get-status"
DefaultAddress = "localhost:2009"
DefaultConfigFile = "/home/rgdd/.config/silent-ct/config.json" // FIXME
)
type Nodes []Node
type Node struct {
Name string `json:"name"`
Secret string `json:"secret"`
Domains []string `json:"issues"`
}
type Config struct {
Address string // hostname[:port] or unix:///path/to/file.sock
Nodes Nodes // Which nodes are trusted to issue what certificates
}
type Server struct {
Config
http.Server
unixSocket bool // true if listening with a unix socket
eventCh chan MessageNodeSubmission
errorCh chan error
}
func New(cfg Config) (Server, error) {
mux := http.NewServeMux()
srv := Server{Config: cfg, Server: http.Server{Handler: mux}}
mux.HandleFunc(EndpointAddChain, func(w http.ResponseWriter, r *http.Request) { srv.addChain(w, r) })
mux.HandleFunc(EndpointGetStatus, func(w http.ResponseWriter, r *http.Request) { srv.getStatus(w, r) })
if len(srv.Address) == 0 {
srv.Config.Address = DefaultAddress
}
if strings.HasPrefix(srv.Config.Address, "unix://") {
srv.Config.Address = srv.Config.Address[7:]
srv.unixSocket = true
}
return srv, nil
}
func (srv *Server) Run(ctx context.Context, submitCh chan MessageNodeSubmission, errorCh chan error) error {
srv.eventCh = submitCh
srv.errorCh = errorCh
network := "unix"
if !srv.unixSocket {
network = "tcp"
}
listener, err := net.Listen(network, srv.Address)
if err != nil {
return fmt.Errorf("listen: %v", err)
}
defer listener.Close()
exitErr := make(chan error, 1)
defer close(exitErr)
go func() {
exitErr <- srv.Serve(listener)
}()
select {
case err := <-exitErr:
if err != nil && err != http.ErrServerClosed {
return fmt.Errorf("serve: %v", err)
}
case <-ctx.Done():
tctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
if err := srv.Shutdown(tctx); err != nil {
return fmt.Errorf("shutdown: %v", err)
}
}
return nil
}
func (srv *Server) getStatus(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodGet {
http.Error(w, "Only HTTP GET method is allowed", http.StatusMethodNotAllowed)
return
}
fmt.Fprintf(w, "OK\n")
}
func (srv *Server) addChain(w http.ResponseWriter, r *http.Request) {
if r.Method != http.MethodGet {
http.Error(w, "Only HTTP POST method is allowed", http.StatusMethodNotAllowed)
return
}
fmt.Fprintf(w, "TODO: HTTP POST /add-chain\n")
}
|
