91 lines
1.8 KiB
Go
91 lines
1.8 KiB
Go
package main
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import (
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"database/sql"
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"errors"
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"net/http"
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"github.com/uptrace/bunrouter"
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"go.elara.ws/logger/log"
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"go.elara.ws/salix"
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)
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type HTTPError struct {
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StatusCode int `json:"status_code"`
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Msg string `json:"error"`
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}
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func (he HTTPError) Error() string {
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return he.Msg
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}
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func (he HTTPError) StatusText() string {
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return http.StatusText(he.StatusCode)
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}
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func httpError(err error) *HTTPError {
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switch err := err.(type) {
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case nil:
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return nil
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case HTTPError:
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return &err
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case *HTTPError:
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return err
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default:
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switch {
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case errors.Is(err, sql.ErrNoRows):
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return &HTTPError{404, err.Error()}
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default:
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return &HTTPError{500, err.Error()}
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}
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}
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}
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func siteErrorHandler(ns *salix.Namespace) bunrouter.MiddlewareFunc {
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return func(next bunrouter.HandlerFunc) bunrouter.HandlerFunc {
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tmpl, ok := ns.GetTemplate("error.html")
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if !ok {
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return basicErrorHandler(next)
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}
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return func(w http.ResponseWriter, req bunrouter.Request) error {
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err := next(w, req)
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if err != nil {
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he := httpError(err)
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w.WriteHeader(he.StatusCode)
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err := tmpl.
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WithVarMap(map[string]any{"error": he}).
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Execute(w)
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if err != nil {
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log.Error("Error while executing error template").Err(err).Send()
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}
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}
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return err
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}
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}
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}
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func apiErrorHandler(next bunrouter.HandlerFunc) bunrouter.HandlerFunc {
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return func(w http.ResponseWriter, req bunrouter.Request) error {
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err := next(w, req)
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if err != nil {
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he := httpError(err)
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w.WriteHeader(he.StatusCode)
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_ = bunrouter.JSON(w, map[string]string{"error": he.Msg})
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}
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return err
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}
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}
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func basicErrorHandler(next bunrouter.HandlerFunc) bunrouter.HandlerFunc {
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return func(w http.ResponseWriter, req bunrouter.Request) error {
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err := next(w, req)
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if err != nil {
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he := httpError(err)
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http.Error(w, he.Msg, he.StatusCode)
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}
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return err
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}
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}
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