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package caddyhttp
import (
"context"
"fmt"
"log"
"net"
"net/http"
"strconv"
"strings"
"time"
"bitbucket.org/lightcodelabs/caddy2"
)
func init() {
err := caddy2.RegisterModule(caddy2.Module{
Name: "http",
New: func() (interface{}, error) { return new(httpModuleConfig), nil },
})
if err != nil {
log.Fatal(err)
}
}
type httpModuleConfig struct {
Servers map[string]httpServerConfig `json:"servers"`
servers []*http.Server
}
func (hc *httpModuleConfig) Run() error {
// fmt.Printf("RUNNING: %#v\n", hc)
for _, srv := range hc.Servers {
s := &http.Server{
ReadTimeout: time.Duration(srv.ReadTimeout),
ReadHeaderTimeout: time.Duration(srv.ReadHeaderTimeout),
}
for _, lnAddr := range srv.Listen {
proto, addrs, err := parseListenAddr(lnAddr)
if err != nil {
return fmt.Errorf("parsing listen address '%s': %v", lnAddr, err)
}
for _, addr := range addrs {
ln, err := caddy2.Listen(proto, addr)
if err != nil {
return fmt.Errorf("%s: listening on %s: %v", proto, addr, err)
}
go s.Serve(ln)
}
}
}
return nil
}
func (hc *httpModuleConfig) Cancel() error {
for _, s := range hc.servers {
err := s.Shutdown(context.Background()) // TODO
if err != nil {
return err
}
}
return nil
}
func parseListenAddr(a string) (proto string, addrs []string, err error) {
proto = "tcp"
if idx := strings.Index(a, "/"); idx >= 0 {
proto = strings.ToLower(strings.TrimSpace(a[:idx]))
a = a[idx+1:]
}
var host, port string
host, port, err = net.SplitHostPort(a)
if err != nil {
return
}
ports := strings.SplitN(port, "-", 2)
if len(ports) == 1 {
ports = append(ports, ports[0])
}
var start, end int
start, err = strconv.Atoi(ports[0])
if err != nil {
return
}
end, err = strconv.Atoi(ports[1])
if err != nil {
return
}
if end < start {
err = fmt.Errorf("end port must be greater than start port")
return
}
for p := start; p <= end; p++ {
addrs = append(addrs, net.JoinHostPort(host, fmt.Sprintf("%d", p)))
}
return
}
type httpServerConfig struct {
Listen []string `json:"listen"`
ReadTimeout caddy2.Duration `json:"read_timeout"`
ReadHeaderTimeout caddy2.Duration `json:"read_header_timeout"`
}
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