eduard256
4d6c2fd878
Fast (~1-3s) endpoint that gathers network info about a device before full stream discovery. Runs ping first, then parallel probes. Features: - Ping with ICMP + TCP fallback (works without root) - Reverse DNS hostname lookup - ARP table MAC address + OUI vendor identification (2403 entries, 51 camera vendors) - mDNS HomeKit detection (camera/doorbell, paired status) - Extensible Prober interface for adding new probe types - 3-second overall timeout, parallel execution Response includes "type" field: - "unreachable" - device not responding - "standard" - normal IP camera (RTSP/HTTP/ONVIF flow) - "homekit" - Apple HomeKit camera (PIN pairing flow)
37 lines
829 B
Go
37 lines
829 B
Go
package discovery
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import (
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"context"
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"net"
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"strings"
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"github.com/eduard256/Strix/internal/models"
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)
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// DNSProber performs reverse DNS lookup to find the hostname of a device.
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type DNSProber struct{}
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func (p *DNSProber) Name() string { return "dns" }
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// Probe performs a reverse DNS lookup on the given IP.
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// Returns nil if no hostname is found (not an error).
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func (p *DNSProber) Probe(ctx context.Context, ip string) (any, error) {
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resolver := net.DefaultResolver
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names, err := resolver.LookupAddr(ctx, ip)
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if err != nil || len(names) == 0 {
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return nil, nil // No hostname found is not an error
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}
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// LookupAddr returns FQDNs with trailing dot, remove it
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hostname := strings.TrimSuffix(names[0], ".")
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if hostname == "" {
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return nil, nil
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}
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return &models.DNSProbeResult{
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Hostname: hostname,
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}, nil
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}
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