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-rw-r--r--modules/caddyhttp/templates/templates.go7
-rw-r--r--modules/caddyhttp/templates/tplcontext.go5
2 files changed, 9 insertions, 3 deletions
diff --git a/modules/caddyhttp/templates/templates.go b/modules/caddyhttp/templates/templates.go
index 33e5a70..6fed8c8 100644
--- a/modules/caddyhttp/templates/templates.go
+++ b/modules/caddyhttp/templates/templates.go
@@ -16,6 +16,7 @@ package templates
import (
"bytes"
+ "errors"
"fmt"
"net/http"
"strconv"
@@ -312,6 +313,12 @@ func (t *Templates) executeTemplate(rr caddyhttp.ResponseRecorder, r *http.Reque
err := ctx.executeTemplateInBuffer(r.URL.Path, rr.Buffer())
if err != nil {
+ // templates may return a custom HTTP error to be propagated to the client,
+ // otherwise for any other error we assume the template is broken
+ var handlerErr caddyhttp.HandlerError
+ if errors.As(err, &handlerErr) {
+ return handlerErr
+ }
return caddyhttp.Error(http.StatusInternalServerError, err)
}
diff --git a/modules/caddyhttp/templates/tplcontext.go b/modules/caddyhttp/templates/tplcontext.go
index 1a145a2..14ac31b 100644
--- a/modules/caddyhttp/templates/tplcontext.go
+++ b/modules/caddyhttp/templates/tplcontext.go
@@ -350,9 +350,8 @@ func (c TemplateContext) funcFileExists(filename string) (bool, error) {
return false, nil
}
-// funcHTTPError returns a structured HTTP handler error. EXPERIMENTAL.
-// TODO: Requires https://github.com/golang/go/issues/34201 to be fixed (Go 1.17).
-// Example usage might be: `{{if not (fileExists $includeFile)}}{{httpError 404}}{{end}}`
+// funcHTTPError returns a structured HTTP handler error. EXPERIMENTAL; SUBJECT TO CHANGE.
+// Example usage: `{{if not (fileExists $includeFile)}}{{httpError 404}}{{end}}`
func (c TemplateContext) funcHTTPError(statusCode int) (bool, error) {
return false, caddyhttp.Error(statusCode, nil)
}