mirror of
https://github.com/AdguardTeam/AdGuardHome.git
synced 2024-11-22 21:15:35 +03:00
132 lines
3.2 KiB
Go
132 lines
3.2 KiB
Go
package dnsforward
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import (
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"net"
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"strings"
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"time"
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"github.com/AdguardTeam/AdGuardHome/internal/filtering"
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"github.com/AdguardTeam/AdGuardHome/internal/querylog"
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"github.com/AdguardTeam/AdGuardHome/internal/stats"
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"github.com/AdguardTeam/dnsproxy/proxy"
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"github.com/AdguardTeam/golibs/log"
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"github.com/AdguardTeam/golibs/netutil"
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"github.com/miekg/dns"
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"golang.org/x/exp/slices"
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)
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// Write Stats data and logs
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func (s *Server) processQueryLogsAndStats(dctx *dnsContext) (rc resultCode) {
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elapsed := time.Since(dctx.startTime)
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pctx := dctx.proxyCtx
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shouldLog := true
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msg := pctx.Req
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// don't log ANY request if refuseAny is enabled
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if len(msg.Question) >= 1 && msg.Question[0].Qtype == dns.TypeANY && s.conf.RefuseAny {
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shouldLog = false
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}
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ip, _ := netutil.IPAndPortFromAddr(pctx.Addr)
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ip = slices.Clone(ip)
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s.serverLock.RLock()
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defer s.serverLock.RUnlock()
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s.anonymizer.Load()(ip)
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log.Debug("client ip: %s", ip)
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// Synchronize access to s.queryLog and s.stats so they won't be suddenly
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// uninitialized while in use. This can happen after proxy server has been
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// stopped, but its workers haven't yet exited.
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if shouldLog && s.queryLog != nil {
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s.logQuery(dctx, pctx, elapsed, ip)
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}
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if s.stats != nil {
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s.updateStats(dctx, elapsed, *dctx.result, ip)
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}
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return resultCodeSuccess
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}
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// logQuery pushes the request details into the query log.
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func (s *Server) logQuery(
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dctx *dnsContext,
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pctx *proxy.DNSContext,
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elapsed time.Duration,
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ip net.IP,
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) {
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p := &querylog.AddParams{
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Question: pctx.Req,
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ReqECS: pctx.ReqECS,
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Answer: pctx.Res,
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OrigAnswer: dctx.origResp,
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Result: dctx.result,
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ClientID: dctx.clientID,
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ClientIP: ip,
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Elapsed: elapsed,
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AuthenticatedData: dctx.responseAD,
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}
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switch pctx.Proto {
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case proxy.ProtoHTTPS:
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p.ClientProto = querylog.ClientProtoDoH
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case proxy.ProtoQUIC:
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p.ClientProto = querylog.ClientProtoDoQ
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case proxy.ProtoTLS:
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p.ClientProto = querylog.ClientProtoDoT
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case proxy.ProtoDNSCrypt:
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p.ClientProto = querylog.ClientProtoDNSCrypt
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default:
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// Consider this a plain DNS-over-UDP or DNS-over-TCP request.
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}
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if pctx.Upstream != nil {
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p.Upstream = pctx.Upstream.Address()
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} else if cachedUps := pctx.CachedUpstreamAddr; cachedUps != "" {
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p.Upstream = pctx.CachedUpstreamAddr
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p.Cached = true
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}
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s.queryLog.Add(p)
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}
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// updatesStats writes the request into statistics.
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func (s *Server) updateStats(
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ctx *dnsContext,
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elapsed time.Duration,
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res filtering.Result,
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clientIP net.IP,
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) {
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pctx := ctx.proxyCtx
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e := stats.Entry{}
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e.Domain = strings.ToLower(pctx.Req.Question[0].Name)
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e.Domain = e.Domain[:len(e.Domain)-1] // remove last "."
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if clientID := ctx.clientID; clientID != "" {
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e.Client = clientID
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} else if clientIP != nil {
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e.Client = clientIP.String()
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}
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e.Time = uint32(elapsed / 1000)
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e.Result = stats.RNotFiltered
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switch res.Reason {
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case filtering.FilteredSafeBrowsing:
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e.Result = stats.RSafeBrowsing
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case filtering.FilteredParental:
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e.Result = stats.RParental
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case filtering.FilteredSafeSearch:
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e.Result = stats.RSafeSearch
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case filtering.FilteredBlockList,
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filtering.FilteredInvalid,
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filtering.FilteredBlockedService:
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e.Result = stats.RFiltered
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}
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s.stats.Update(e)
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}
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