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refactor: factorize 500 errors

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This just factorizes the handling of 500 Internal Server Errors.
This commit is contained in:
James Elliott
2025-06-15 12:14:14 +10:00
parent 26d03f9ad4
commit eb540b774d
1 changed files with 20 additions and 30 deletions
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50
src/mod/auth/sso/forward/forward.go
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@@ -87,7 +87,7 @@ func (ar *AuthRouter) HandleAPIOptions(w http.ResponseWriter, r *http.Request) {
}
func (ar *AuthRouter) handleOptionsGET(w http.ResponseWriter, r *http.Request) {
js, _ := json.Marshal(map[string]interface{}{
js, _ := json.Marshal(map[string]any{
DatabaseKeyAddress: ar.options.Address,
DatabaseKeyResponseHeaders: ar.options.ResponseHeaders,
DatabaseKeyResponseClientHeaders: ar.options.ResponseClientHeaders,
@@ -145,11 +145,7 @@ func (ar *AuthRouter) handleOptionsMethodNotAllowed(w http.ResponseWriter, r *ht
// HandleAuthProviderRouting is the internal handler for Forward Auth authentication.
func (ar *AuthRouter) HandleAuthProviderRouting(w http.ResponseWriter, r *http.Request) error {
if ar.options.Address == "" {
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
ar.options.Logger.PrintAndLog(LogTitle, "Address not set", nil)
return ErrInternalServerError
return ar.handle500Error(w, nil, "Address not set")
}
// Make a request to Authz Server to verify the request
@@ -158,11 +154,7 @@ func (ar *AuthRouter) HandleAuthProviderRouting(w http.ResponseWriter, r *http.R
// as I'm unaware of any specific forward auth implementation that needs it.
req, err := http.NewRequest(http.MethodGet, ar.options.Address, nil)
if err != nil {
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
ar.options.Logger.PrintAndLog(LogTitle, "Unable to create request", err)
return ErrInternalServerError
return ar.handle500Error(w, err, "Unable to create request")
}
headerCopyIncluded(r.Header, req.Header, ar.options.RequestHeaders, true)
@@ -175,24 +167,11 @@ func (ar *AuthRouter) HandleAuthProviderRouting(w http.ResponseWriter, r *http.R
// Make the Authz Request.
respForwarded, err := ar.client.Do(req)
if err != nil {
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
ar.options.Logger.PrintAndLog(LogTitle, "Unable to perform forwarded auth due to a request error", err)
return ErrInternalServerError
return ar.handle500Error(w, err, "Unable to perform forwarded auth due to a request error")
}
defer respForwarded.Body.Close()
body, err := io.ReadAll(respForwarded.Body)
if err != nil {
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
ar.options.Logger.PrintAndLog(LogTitle, "Unable to read response to forward auth request", err)
return ErrInternalServerError
}
// Responses within the 200-299 range are considered successful and allow the proxy to handle the request.
if respForwarded.StatusCode >= http.StatusOK && respForwarded.StatusCode < http.StatusMultipleChoices {
if len(ar.options.ResponseClientHeaders) != 0 {
@@ -215,13 +194,24 @@ func (ar *AuthRouter) HandleAuthProviderRouting(w http.ResponseWriter, r *http.R
headerCopyExcluded(respForwarded.Header, w.Header(), nil)
w.WriteHeader(respForwarded.StatusCode)
body, err := io.ReadAll(respForwarded.Body)
if err != nil {
return ar.handle500Error(w, err, "Unable to read response to forward auth request")
}
if _, err = w.Write(body); err != nil {
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
ar.options.Logger.PrintAndLog(LogTitle, "Unable to write response", err)
return ErrInternalServerError
return ar.handle500Error(w, err, "Unable to write response")
}
return ErrUnauthorized
}
// handle500Error is func intended on factorizing a commonly repeated functional flow within this provider.
func (ar *AuthRouter) handle500Error(w http.ResponseWriter, err error, message string) error {
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
ar.options.Logger.PrintAndLog(LogTitle, message, err)
return ErrInternalServerError
}