better error pages

routes/errors/errors.go

@@ -0,0 +1,51 @@
+package errors
+
+import (
+	"net/http"
+	"strconv"
+	"text/template"
+
+	"github.com/hacdias/caddy-hugo/tools/server"
+	"github.com/hacdias/caddy-hugo/tools/templates"
+	"github.com/hacdias/caddy-hugo/tools/variables"
+)
+
+type errorInformation struct {
+	Title   string `json:"title"`
+	Message string `json:"message"`
+	err     error
+}
+
+// ServeHTTP is used to serve the content of GIT API.
+func ServeHTTP(w http.ResponseWriter, r *http.Request, code int, err error) (int, error) {
+	page := new(errorInformation)
+	page.Title = strconv.Itoa(code) + " " + http.StatusText(code)
+	page.err = err
+
+	if err != nil {
+		page.Message = err.Error()
+	}
+
+	switch r.Method {
+	case "GET":
+		functions := template.FuncMap{
+			"Defined": variables.Defined,
+		}
+
+		tpl, err := templates.Get(r, functions, "error")
+
+		if err != nil {
+			return http.StatusInternalServerError, err
+		}
+
+		err = tpl.Execute(w, page)
+
+		if err != nil {
+			return http.StatusInternalServerError, err
+		}
+
+		return 0, page.err
+	default:
+		return server.RespondJSON(w, page, code, err)
+	}
+}