Initial commit

checker/rule.go

@@ -0,0 +1,61 @@
+package checker
+
+import (
+	"context"
+	"fmt"
+
+	sdk "git.happydns.org/checker-sdk-go/checker"
+)
+
+func Rules() []sdk.CheckRule {
+	return []sdk.CheckRule{
+		&isReverseZoneRule{},
+		&hasPTRsRule{},
+		&fcrdnsRule{},
+		&targetResolvesRule{},
+		&singlePTRRule{},
+		&targetSyntaxRule{},
+		&genericHostnameRule{},
+		&ttlHygieneRule{},
+		&truncationRule{},
+	}
+}
+
+func loadData(ctx context.Context, obs sdk.ObservationGetter) (*ReverseZoneData, *sdk.CheckState) {
+	var data ReverseZoneData
+	if err := obs.Get(ctx, ObservationKey, &data); err != nil {
+		return nil, &sdk.CheckState{
+			Status:  sdk.StatusError,
+			Code:    "reverse_zone.observation_error",
+			Message: fmt.Sprintf("failed to get reverse-zone data: %v", err),
+		}
+	}
+	return &data, nil
+}
+
+func passState(code, message, subject string) sdk.CheckState {
+	return sdk.CheckState{Status: sdk.StatusOK, Code: code, Message: message, Subject: subject}
+}
+
+func skipState(code, message string) sdk.CheckState {
+	return sdk.CheckState{Status: sdk.StatusUnknown, Code: code, Message: message}
+}
+
+func critState(code, message, subject, hint string) sdk.CheckState {
+	return withHint(sdk.CheckState{Status: sdk.StatusCrit, Code: code, Message: message, Subject: subject}, hint)
+}
+
+func warnState(code, message, subject, hint string) sdk.CheckState {
+	return withHint(sdk.CheckState{Status: sdk.StatusWarn, Code: code, Message: message, Subject: subject}, hint)
+}
+
+func infoState(code, message, subject string) sdk.CheckState {
+	return sdk.CheckState{Status: sdk.StatusInfo, Code: code, Message: message, Subject: subject}
+}
+
+func withHint(st sdk.CheckState, hint string) sdk.CheckState {
+	if hint != "" {
+		st.Meta = map[string]any{"hint": hint}
+	}
+	return st
+}