// Router constructs the main Devd router that serves all requests
func (dd *Devd) Router(logger termlog.TermLog, templates *template.Template) (http.Handler, error) {
mux := http.NewServeMux()
hasGlobal := false
ci := inject.CopyInject{}
if dd.HasLivereload() {
ci = livereload.Injector
}
for match, route := range dd.Routes {
if match == "/" {
hasGlobal = true
}
handler := dd.WrapHandler(
logger,
route.Endpoint.Handler(templates, ci),
)
handler = http.StripPrefix(route.Path, handler)
mux.Handle(match, handler)
}
if dd.HasLivereload() {
lr := livereload.NewServer("livereload", logger)
mux.Handle(livereload.EndpointPath, lr)
mux.Handle(livereload.ScriptPath, http.HandlerFunc(lr.ServeScript))
if dd.LivereloadRoutes {
err := WatchRoutes(dd.Routes, lr, dd.Excludes, logger)
if err != nil {
return nil, fmt.Errorf("Could not watch routes for livereload: %s", err)
}
}
if len(dd.WatchPaths) > 0 {
err := WatchPaths(dd.WatchPaths, dd.Excludes, lr, logger)
if err != nil {
return nil, fmt.Errorf("Could not watch path for livereload: %s", err)
}
}
dd.lrserver = lr
}
if !hasGlobal {
mux.Handle(
"/",
dd.WrapHandler(logger, HandleNotFound(templates)),
)
}
var h = http.Handler(mux)
if dd.Credentials != nil {
h = httpauth.SimpleBasicAuth(
dd.Credentials.username, dd.Credentials.password,
)(h)
}
return hostPortStrip(h), nil
}
// Handler construc5ts the Devd handler
func (dd *Devd) Handler(logger termlog.Logger, templates *template.Template) (http.Handler, error) {
mux := http.NewServeMux()
for match, route := range dd.Routes {
mux.Handle(match, dd.RouteHandler(logger, route, templates))
}
if dd.HasLivereload() {
lr := livereload.NewServer("livereload", logger)
mux.Handle(livereload.EndpointPath, lr)
mux.Handle(livereload.ScriptPath, http.HandlerFunc(lr.ServeScript))
if dd.LivereloadRoutes {
err := WatchRoutes(dd.Routes, lr, dd.Excludes, logger)
if err != nil {
return nil, fmt.Errorf("Could not watch routes for livereload: %s", err)
}
}
if len(dd.WatchPaths) > 0 {
err := WatchPaths(dd.WatchPaths, dd.Excludes, lr, logger)
if err != nil {
return nil, fmt.Errorf("Could not watch path for livereload: %s", err)
}
}
}
return hostPortStrip(mux), nil
}
func main() {
httpIP := kingpin.Flag("address", "Address to listen on").
Short('A').
Default("127.0.0.1").
String()
allInterfaces := kingpin.Flag("a", "Listen on all addresses").
Short('a').
Bool()
certFile := kingpin.Flag("cert", "Certificate bundle file - enables TLS").
Short('c').
PlaceHolder("PATH").
Default("").
ExistingFile()
throttleDownKbps := kingpin.Flag(
"down",
"Throttle downstream from the client to N kilobytes per second",
).
PlaceHolder("N").
Short('d').
Default("0").
Int()
logHeaders := kingpin.Flag("logheaders", "Log headers").
Short('H').
Default("false").
Bool()
ignoreHeaders := kingpin.Flag(
"ignore",
"Disable logging matching requests. Regexes are matched over 'host/path'",
).
Short('I').
PlaceHolder("REGEX").
Strings()
livereloadRoutes := kingpin.Flag("livereload", "Enable livereload for static files").
Short('l').
Default("false").
Bool()
latency := kingpin.Flag("latency", "Add N milliseconds of round-trip latency").
PlaceHolder("N").
Short('n').
Default("0").
Int()
openBrowser := kingpin.Flag("open", "Open browser window on startup").
Short('o').
Default("false").
Bool()
httpPort := kingpin.Flag(
"port",
"Port to listen on - if not specified, devd will auto-pick a sensible port",
).
Short('p').
Int()
enableTimer := kingpin.Flag("logtime", "Log timing").
Short('T').
Default("false").
Bool()
throttleUpKbps := kingpin.Flag(
"up",
"Throttle upstream from the client to N kilobytes per second",
).
PlaceHolder("N").
Short('u').
Default("0").
Int()
watch := kingpin.Flag("watch", "Watch path to trigger livereload").
PlaceHolder("PATH").
Short('w').
Strings()
debug := kingpin.Flag("debug", "Debugging for devd development").
Default("false").
Bool()
excludes := kingpin.Flag("exclude", "Glob pattern for files to exclude from livereload.").
PlaceHolder("PATTERN").
Short('x').
Strings()
routes := kingpin.Arg(
"route",
`Routes have the following forms:
[SUBDOMAIN]/<PATH>=<DIR>
[SUBDOMAIN]/<PATH>=<URL>
<DIR>
<URL>
`,
).Required().Strings()
kingpin.Version(version)
kingpin.Parse()
logger := termlog.NewLog()
if *debug {
logger.Enable("debug")
}
if *enableTimer {
logger.Enable("timer")
}
if *throttleDownKbps == 0 {
*throttleDownKbps = slowdown.MaxRate
}
if *throttleUpKbps == 0 {
*throttleUpKbps = slowdown.MaxRate
}
if *allInterfaces {
*httpIP = "0.0.0.0"
}
tlsEnabled := false
if *certFile != "" {
tlsEnabled = true
}
var hl net.Listener
var err error
if *httpPort > 0 {
hl, err = net.Listen("tcp", fmt.Sprintf("%v:%d", *httpIP, *httpPort))
} else {
hl, err = pickPort(*httpIP, portLow, portHigh, tlsEnabled)
}
if err != nil {
kingpin.Fatalf("Could not bind to port: %s", err)
return
}
templates := ricetemp.MustMakeTemplates(rice.MustFindBox("templates"))
if err != nil {
kingpin.Fatalf("Error loading templates: %s", err)
return
}
ignores := make([]*regexp.Regexp, 0, 0)
for _, expr := range *ignoreHeaders {
v, err := regexp.Compile(expr)
if err != nil {
kingpin.Fatalf("%s", err)
}
ignores = append(ignores, v)
}
routeColl := make(routeCollection)
for _, s := range *routes {
err := routeColl.Set(s)
if err != nil {
kingpin.FatalUsage("Invalid route specification: %s", err)
}
}
mux := http.NewServeMux()
var livereloadEnabled = false
if *livereloadRoutes || len(*watch) > 0 {
livereloadEnabled = true
}
for match, route := range routeColl {
handler := devdHandler(
logger,
route,
templates,
*logHeaders,
ignores,
livereloadEnabled,
*latency,
)
mux.Handle(match, http.StripPrefix(route.Path, handler))
}
lr := livereload.NewServer("livereload", logger)
if livereloadEnabled {
mux.Handle("/livereload", lr)
mux.Handle("/livereload.js", http.HandlerFunc(lr.ServeScript))
}
if *livereloadRoutes {
err = WatchRoutes(routeColl, lr)
if err != nil {
kingpin.Fatalf("Could not watch routes for livereload: %s", err)
}
}
if len(*watch) > 0 {
err = WatchPaths(*watch, *excludes, lr, logger)
if err != nil {
kingpin.Fatalf("Could not watch path for livereload: %s", err)
}
}
var tlsConfig *tls.Config
if *certFile != "" {
tlsConfig, err = getTLSConfig(*certFile)
if err != nil {
kingpin.Fatalf("Could not load certs: %s", err)
return
}
hl = tls.NewListener(hl, tlsConfig)
}
hl = slowdown.NewSlowListener(
hl,
float64(*throttleUpKbps)*1024,
float64(*throttleDownKbps)*1024,
)
url := formatURL(tlsEnabled, *httpIP, hl.Addr().(*net.TCPAddr).Port)
logger.Say("Listening on %s (%s)", url, hl.Addr().String())
if *openBrowser {
go func() {
webbrowser.Open(url)
}()
}
server := &http.Server{
Addr: hl.Addr().String(),
Handler: hostPortStrip(mux),
}
err = server.Serve(hl)
logger.Shout("Server stopped: %v", err)
}
// Serve starts the devd server
func (dd *Devd) Serve(logger termlog.Logger) error {
templates, err := ricetemp.MakeTemplates(rice.MustFindBox("templates"))
if err != nil {
return fmt.Errorf("Error loading templates: %s", err)
}
ignores := make([]*regexp.Regexp, 0, 0)
for _, expr := range dd.IgnoreLogs {
v, err := regexp.Compile(expr)
if err != nil {
return fmt.Errorf("%s", err)
}
ignores = append(ignores, v)
}
routeColl := make(RouteCollection)
for _, s := range dd.Routes {
err := routeColl.Set(s)
if err != nil {
return fmt.Errorf("Invalid route specification: %s", err)
}
}
mux := http.NewServeMux()
for match, route := range routeColl {
handler := dd.RouteHandler(logger, route, templates, ignores)
mux.Handle(match, http.StripPrefix(route.Path, handler))
}
lr := livereload.NewServer("livereload", logger)
if dd.LivereloadEnabled() {
mux.Handle("/livereload", lr)
mux.Handle("/livereload.js", http.HandlerFunc(lr.ServeScript))
}
if dd.LivereloadRoutes {
err = WatchRoutes(routeColl, lr, dd.Excludes, logger)
if err != nil {
return fmt.Errorf("Could not watch routes for livereload: %s", err)
}
}
if len(dd.Watch) > 0 {
err = WatchPaths(dd.Watch, dd.Excludes, lr, logger)
if err != nil {
return fmt.Errorf("Could not watch path for livereload: %s", err)
}
}
var hl net.Listener
tlsEnabled := false
if dd.CertFile != "" {
tlsEnabled = true
}
if dd.Port > 0 {
hl, err = net.Listen("tcp", fmt.Sprintf("%v:%d", dd.Address, dd.Port))
} else {
hl, err = pickPort(dd.Address, portLow, portHigh, tlsEnabled)
}
if err != nil {
return fmt.Errorf("Could not bind to port: %s", err)
}
var tlsConfig *tls.Config
if dd.CertFile != "" {
tlsConfig, err = getTLSConfig(dd.CertFile)
if err != nil {
return fmt.Errorf("Could not load certs: %s", err)
}
hl = tls.NewListener(hl, tlsConfig)
}
hl = slowdown.NewSlowListener(hl, dd.UpKbps*1024, dd.DownKbps*1024)
url := formatURL(tlsEnabled, dd.Address, hl.Addr().(*net.TCPAddr).Port)
logger.Say("Listening on %s (%s)", url, hl.Addr().String())
if dd.OpenBrowser {
go func() {
webbrowser.Open(url)
}()
}
server := &http.Server{
Addr: hl.Addr().String(),
Handler: hostPortStrip(mux),
}
err = server.Serve(hl)
logger.Shout("Server stopped: %v", err)
return nil
}