package server import ( "fmt" "github.com/emersion/go-smtp" "net/http" "strings" ) func readBoolParam(r *http.Request, defaultValue bool, names ...string) bool { value := strings.ToLower(readParam(r, names...)) if value == "" { return defaultValue } return value == "1" || value == "yes" || value == "true" } func readParam(r *http.Request, names ...string) string { value := readHeaderParam(r, names...) if value != "" { return value } return readQueryParam(r, names...) } func readHeaderParam(r *http.Request, names ...string) string { for _, name := range names { value := r.Header.Get(name) if value != "" { return strings.TrimSpace(value) } } return "" } func readQueryParam(r *http.Request, names ...string) string { for _, name := range names { value := r.URL.Query().Get(strings.ToLower(name)) if value != "" { return strings.TrimSpace(value) } } return "" } func logMessagePrefix(v *visitor, m *message) string { return fmt.Sprintf("%s/%s/%s", v.ip, m.Topic, m.ID) } func logHTTPPrefix(v *visitor, r *http.Request) string { requestURI := r.RequestURI if requestURI == "" { requestURI = r.URL.Path } return fmt.Sprintf("%s HTTP %s %s", v.ip, r.Method, requestURI) } func logSMTPPrefix(state *smtp.ConnectionState) string { return fmt.Sprintf("%s/%s SMTP", state.Hostname, state.RemoteAddr.String()) }