If rendering has failed due to a net.OpError stop rendering (#18642) (#18645)

Backport #18642

When a net.OpError occurs during rendering the underlying connection is essentially
dead and therefore attempting to render further data will only cause further errors.

Therefore in serverErrorInternal detect if the passed in error is an OpError and
if so do not attempt any further rendering.

Fix #18629

Signed-off-by: Andrew Thornton <art27@cantab.net>
This commit is contained in:
zeripath 2022-02-07 01:25:05 +00:00 committed by GitHub
parent bb77e6c12d
commit d4a075d738
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@ -9,9 +9,11 @@ import (
"context"
"crypto/sha256"
"encoding/hex"
"errors"
"html"
"html/template"
"io"
"net"
"net/http"
"net/url"
"path"
@ -264,6 +266,12 @@ func (ctx *Context) ServerError(logMsg string, logErr error) {
func (ctx *Context) serverErrorInternal(logMsg string, logErr error) {
if logErr != nil {
log.ErrorWithSkip(2, "%s: %v", logMsg, logErr)
if errors.Is(logErr, &net.OpError{}) {
// This is an error within the underlying connection
// and further rendering will not work so just return
return
}
if !setting.IsProd {
ctx.Data["ErrorMsg"] = logErr
}