authelia/internal/middlewares/errors.go

54 lines
1.7 KiB
Go

package middlewares
import (
"errors"
"fmt"
"github.com/valyala/fasthttp"
)
var (
// ErrMissingXForwardedProto is returned on methods which require an X-Forwarded-Proto header.
ErrMissingXForwardedProto = errors.New("missing required X-Forwarded-Proto header")
// ErrMissingXForwardedHost is returned on methods which require an X-Forwarded-Host header.
ErrMissingXForwardedHost = errors.New("missing required X-Forwarded-Host header")
// ErrMissingHeaderHost is returned on methods which require an Host header.
ErrMissingHeaderHost = errors.New("missing required Host header")
// ErrMissingXOriginalURL is returned on methods which require an X-Original-URL header.
ErrMissingXOriginalURL = errors.New("missing required X-Original-URL header")
)
// RecoverPanic recovers from panics and logs the error.
func RecoverPanic(next fasthttp.RequestHandler) fasthttp.RequestHandler {
return func(ctx *fasthttp.RequestCtx) {
defer func() {
if r := recover(); r != nil {
NewRequestLogger(ctx).WithError(recoverErr(r)).Error("Panic (recovered) occurred while handling requests, please report this error")
ctx.Response.Reset()
ctx.SetStatusCode(fasthttp.StatusInternalServerError)
ctx.SetContentTypeBytes(contentTypeTextPlain)
ctx.SetBodyString(fmt.Sprintf("%d %s", fasthttp.StatusInternalServerError, fasthttp.StatusMessage(fasthttp.StatusInternalServerError)))
}
}()
next(ctx)
}
}
func recoverErr(i any) error {
switch v := i.(type) {
case nil:
return nil
case string:
return fmt.Errorf("recovered panic: %s", v)
case error:
return fmt.Errorf("recovered panic: %w", v)
default:
return fmt.Errorf("recovered panic with unknown type: %v", v)
}
}