feat: middleware to return error as html

2025-12-14 20:43:38 +00:00 · 2023-10-09 07:45:29 +00:00
parent ec47c9d610
commit 8842235372
8 changed files with 202 additions and 73 deletions
--- a/middleware/httpErrors.go
+++ b/middleware/httpErrors.go
@@ -0,0 +1,54 @@
+package middleware
+
+import (
+	"bytes"
+	"html/template"
+	"log"
+
+	"github.com/pocketbase/pocketbase"
+	"github.com/pocketbase/pocketbase/core"
+)
+
+func AddErrorsMiddleware(app *pocketbase.PocketBase) {
+	app.OnBeforeApiError().Add(func(e *core.ApiErrorEvent) error {
+		log.Printf("in before api error with %+v with response %v and error %+v", e, e.HttpContext.Response(), e.Error)
+		// oh, i guess i could do redirect?
+		return renderErrorPage(e)
+	})
+}
+
+var redirectTemplate = `
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta http-equiv="refresh" content="0; url='/error/{{ . }}'" />
+  </head>
+  <body>
+    <p>Redirecting to error page</p>
+  </body>
+</html>
+`
+var tmpl = template.Must( template.New("redirect-to-error").Parse(redirectTemplate) )
+
+func renderErrorPage(e *core.ApiErrorEvent) error {
+	errorMessage := e.Error.Error()
+	log.Printf("in error to html middleware for %s with status %+v", errorMessage, e)
+
+	errorCode := 500
+	switch errorMessage {
+	case "Not Found.":
+		// not authorized
+		errorCode = 404
+	case "The request requires admin or record authorization token to be set.":
+		// not found
+		errorCode = 401
+	}
+
+	var instantiatedTemplate bytes.Buffer
+	if err := tmpl.Execute(&instantiatedTemplate, errorCode); err != nil {
+		// couldn't execute the template
+		return e.HttpContext.HTML(200, "Error 500")
+	}
+
+	return e.HttpContext.HTML(200, instantiatedTemplate.String())
+}