func (app *App) errorPage(ctx *Context, elapsed time.Duration, skip int, stackSkip int, req string, err interface{}) {
t := newInternalTemplate(app)
if terr := t.parse("panic.html", devserver.TemplateVars(&Context{})); terr != nil {
panic(terr)
}
if devserver.IsActive() {
t.tmpl.AddPlugin(devserver.ReloadPlugin())
}
if terr := t.prepare(); terr != nil {
panic(terr)
}
stack := runtimeutil.FormatStackHTML(stackSkip + 1)
location, code := runtimeutil.FormatCallerHTML(skip+1, 5, true, true)
ctx.statusCode = -http.StatusInternalServerError
data := map[string]interface{}{
"Error": fmt.Sprintf("%v", err),
"Subtitle": fmt.Sprintf("(after %s)", elapsed),
"Location": location,
"Code": code,
"Stack": stack,
"Request": req,
"Name": filepath.Base(os.Args[0]),
"IsDevServer": devserver.IsDevServer(app),
}
if err := t.Execute(ctx, data); err != nil {
var msg string
if file, line, ok := runtimeutil.PanicLocation(); ok {
msg = fmt.Sprintf("error rendering error page: %v @ %s:%d)", err, file, line)
} else {
msg = fmt.Sprintf("error rendering error page: %v", err)
}
ctx.WriteString(msg)
}
}
// Prepare is automatically called for you. This function is
// only exposed because the gnd.la/app/tester package needs
// to call it to set the App up without making it listen on
// a port.
func (app *App) Prepare() error {
// Make Prepare() idempotent. Otherwise the tester package
// would need a lot of extra logic to deal with GAE vs
// non-GAE environments.
if app.prepared {
return nil
}
// Initialize the ORM first, so admin commands
// run with the ORM ready to be used.
if app.parent == nil {
err := app.prepareOrm()
if err != nil && err != errNoDefaultDatabase && err != errNoAppOrm {
return err
}
}
Signals.WillPrepare.emit(app)
if s := app.cfg.Secret; s != "" && len(s) < 32 &&
os.Getenv("GONDOLA_ALLOW_SHORT_SECRET") == "" && !devserver.IsDevServer(app) {
return fmt.Errorf("secret %q is too short, must be at least 32 characters - use gondola random-string to generate one", s)
}
for _, v := range app.included {
child := v.app
child.cfg = app.cfg
child.CookieOptions = app.CookieOptions
child.CookieCodec = app.CookieCodec
child.Hasher = app.Hasher
child.Cipherer = app.Cipherer
child.languageHandler = app.languageHandler
child.userFunc = app.userFunc
child.Logger = app.Logger
}
// Add template plugins from each included app to all the other apps
for _, h := range app.templatePlugins {
if h.Position == assets.None {
continue
}
for _, v := range app.included {
child := v.app
has := false
for _, ch := range child.templatePlugins {
if ch == h {
has = true
break
}
}
if !has {
child.templatePlugins = append(child.templatePlugins, h)
}
}
}
app.prepared = true
Signals.DidPrepare.emit(app)
return nil
}