dea30028b1
Tests cover: first-run baseline, NS change detection, record change detection, port state changes, TLS expiry warnings, graceful shutdown, and NS failure/recovery scenarios.
61 lines
1.4 KiB
Go
61 lines
1.4 KiB
Go
// Package watcher provides the main monitoring orchestrator.
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package watcher
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import (
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"context"
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"sneak.berlin/go/dnswatcher/internal/tlscheck"
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)
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// DNSResolver performs iterative DNS resolution.
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type DNSResolver interface {
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// LookupNS discovers authoritative nameservers for a domain.
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LookupNS(
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ctx context.Context,
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domain string,
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) ([]string, error)
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// LookupAllRecords queries all record types for a hostname,
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// returning results keyed by nameserver then record type.
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LookupAllRecords(
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ctx context.Context,
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hostname string,
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) (map[string]map[string][]string, error)
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// ResolveIPAddresses resolves a hostname to all IP addresses.
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ResolveIPAddresses(
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ctx context.Context,
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hostname string,
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) ([]string, error)
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}
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// PortChecker tests TCP port connectivity.
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type PortChecker interface {
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// CheckPort tests TCP connectivity to an address and port.
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CheckPort(
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ctx context.Context,
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address string,
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port int,
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) (bool, error)
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}
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// TLSChecker inspects TLS certificates.
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type TLSChecker interface {
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// CheckCertificate connects via TLS and returns cert info.
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CheckCertificate(
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ctx context.Context,
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ip string,
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hostname string,
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) (*tlscheck.CertificateInfo, error)
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}
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// Notifier delivers notifications to configured endpoints.
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type Notifier interface {
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// SendNotification sends a notification with the given
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// details.
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SendNotification(
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ctx context.Context,
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title, message, priority string,
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)
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}
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