mirror of
https://github.com/AdguardTeam/AdGuardHome.git
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7c6557b05e
Updates 1273.
Squashed commit of the following:
commit 167c0b5acaab8a2676de2cea556c861dc0efbc72
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date: Mon Apr 12 18:12:43 2021 +0300
querylog: imp naming
commit 5010ad113e46335011a721cbcc9fc9b1fc623722
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date: Mon Apr 12 17:53:41 2021 +0300
querylog: more opt
375 lines
9.6 KiB
Go
375 lines
9.6 KiB
Go
package querylog
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import (
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"fmt"
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"math/rand"
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"net"
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"sort"
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"testing"
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"time"
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"github.com/AdguardTeam/AdGuardHome/internal/aghtest"
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"github.com/AdguardTeam/AdGuardHome/internal/dnsfilter"
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"github.com/AdguardTeam/dnsproxy/proxyutil"
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"github.com/miekg/dns"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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)
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func TestMain(m *testing.M) {
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aghtest.DiscardLogOutput(m)
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}
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// TestQueryLog tests adding and loading (with filtering) entries from disk and
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// memory.
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func TestQueryLog(t *testing.T) {
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l := newQueryLog(Config{
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Enabled: true,
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FileEnabled: true,
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RotationIvl: 1,
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MemSize: 100,
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BaseDir: t.TempDir(),
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})
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// Add disk entries.
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addEntry(l, "example.org", net.IPv4(1, 1, 1, 1), net.IPv4(2, 2, 2, 1))
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// Write to disk (first file).
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require.Nil(t, l.flushLogBuffer(true))
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// Start writing to the second file.
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require.Nil(t, l.rotate())
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// Add disk entries.
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addEntry(l, "example.org", net.IPv4(1, 1, 1, 2), net.IPv4(2, 2, 2, 2))
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// Write to disk.
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require.Nil(t, l.flushLogBuffer(true))
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// Add memory entries.
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addEntry(l, "test.example.org", net.IPv4(1, 1, 1, 3), net.IPv4(2, 2, 2, 3))
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addEntry(l, "example.com", net.IPv4(1, 1, 1, 4), net.IPv4(2, 2, 2, 4))
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type tcAssertion struct {
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num int
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host string
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answer, client net.IP
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}
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testCases := []struct {
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name string
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sCr []searchCriterion
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want []tcAssertion
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}{{
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name: "all",
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sCr: []searchCriterion{},
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want: []tcAssertion{
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{num: 0, host: "example.com", answer: net.IPv4(1, 1, 1, 4), client: net.IPv4(2, 2, 2, 4)},
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{num: 1, host: "test.example.org", answer: net.IPv4(1, 1, 1, 3), client: net.IPv4(2, 2, 2, 3)},
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{num: 2, host: "example.org", answer: net.IPv4(1, 1, 1, 2), client: net.IPv4(2, 2, 2, 2)},
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{num: 3, host: "example.org", answer: net.IPv4(1, 1, 1, 1), client: net.IPv4(2, 2, 2, 1)},
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},
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}, {
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name: "by_domain_strict",
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sCr: []searchCriterion{{
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criterionType: ctDomainOrClient,
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strict: true,
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value: "TEST.example.org",
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}},
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want: []tcAssertion{{
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num: 0, host: "test.example.org", answer: net.IPv4(1, 1, 1, 3), client: net.IPv4(2, 2, 2, 3),
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}},
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}, {
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name: "by_domain_non-strict",
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sCr: []searchCriterion{{
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criterionType: ctDomainOrClient,
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strict: false,
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value: "example.ORG",
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}},
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want: []tcAssertion{
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{num: 0, host: "test.example.org", answer: net.IPv4(1, 1, 1, 3), client: net.IPv4(2, 2, 2, 3)},
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{num: 1, host: "example.org", answer: net.IPv4(1, 1, 1, 2), client: net.IPv4(2, 2, 2, 2)},
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{num: 2, host: "example.org", answer: net.IPv4(1, 1, 1, 1), client: net.IPv4(2, 2, 2, 1)},
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},
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}, {
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name: "by_client_ip_strict",
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sCr: []searchCriterion{{
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criterionType: ctDomainOrClient,
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strict: true,
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value: "2.2.2.2",
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}},
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want: []tcAssertion{{
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num: 0, host: "example.org", answer: net.IPv4(1, 1, 1, 2), client: net.IPv4(2, 2, 2, 2),
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}},
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}, {
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name: "by_client_ip_non-strict",
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sCr: []searchCriterion{{
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criterionType: ctDomainOrClient,
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strict: false,
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value: "2.2.2",
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}},
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want: []tcAssertion{
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{num: 0, host: "example.com", answer: net.IPv4(1, 1, 1, 4), client: net.IPv4(2, 2, 2, 4)},
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{num: 1, host: "test.example.org", answer: net.IPv4(1, 1, 1, 3), client: net.IPv4(2, 2, 2, 3)},
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{num: 2, host: "example.org", answer: net.IPv4(1, 1, 1, 2), client: net.IPv4(2, 2, 2, 2)},
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{num: 3, host: "example.org", answer: net.IPv4(1, 1, 1, 1), client: net.IPv4(2, 2, 2, 1)},
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},
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}}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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params := newSearchParams()
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params.searchCriteria = tc.sCr
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entries, _ := l.search(params)
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require.Len(t, entries, len(tc.want))
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for _, want := range tc.want {
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assertLogEntry(t, entries[want.num], want.host, want.answer, want.client)
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}
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})
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}
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}
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func TestQueryLogOffsetLimit(t *testing.T) {
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l := newQueryLog(Config{
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Enabled: true,
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RotationIvl: 1,
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MemSize: 100,
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BaseDir: t.TempDir(),
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})
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const (
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entNum = 10
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firstPageDomain = "first.example.org"
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secondPageDomain = "second.example.org"
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)
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// Add entries to the log.
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for i := 0; i < entNum; i++ {
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addEntry(l, secondPageDomain, net.IPv4(1, 1, 1, 1), net.IPv4(2, 2, 2, 1))
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}
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// Write them to the first file.
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require.Nil(t, l.flushLogBuffer(true))
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// Add more to the in-memory part of log.
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for i := 0; i < entNum; i++ {
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addEntry(l, firstPageDomain, net.IPv4(1, 1, 1, 1), net.IPv4(2, 2, 2, 1))
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}
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params := newSearchParams()
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testCases := []struct {
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name string
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offset int
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limit int
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wantLen int
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want string
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}{{
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name: "page_1",
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offset: 0,
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limit: 10,
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wantLen: 10,
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want: firstPageDomain,
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}, {
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name: "page_2",
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offset: 10,
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limit: 10,
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wantLen: 10,
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want: secondPageDomain,
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}, {
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name: "page_2.5",
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offset: 15,
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limit: 10,
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wantLen: 5,
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want: secondPageDomain,
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}, {
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name: "page_3",
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offset: 20,
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limit: 10,
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wantLen: 0,
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}}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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params.offset = tc.offset
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params.limit = tc.limit
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entries, _ := l.search(params)
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require.Len(t, entries, tc.wantLen)
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if tc.wantLen > 0 {
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assert.Equal(t, entries[0].QHost, tc.want)
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assert.Equal(t, entries[tc.wantLen-1].QHost, tc.want)
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}
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})
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}
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}
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func TestQueryLogMaxFileScanEntries(t *testing.T) {
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l := newQueryLog(Config{
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Enabled: true,
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FileEnabled: true,
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RotationIvl: 1,
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MemSize: 100,
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BaseDir: t.TempDir(),
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})
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const entNum = 10
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// Add entries to the log.
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for i := 0; i < entNum; i++ {
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addEntry(l, "example.org", net.IPv4(1, 1, 1, 1), net.IPv4(2, 2, 2, 1))
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}
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// Write them to disk.
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require.Nil(t, l.flushLogBuffer(true))
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params := newSearchParams()
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for _, maxFileScanEntries := range []int{5, 0} {
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t.Run(fmt.Sprintf("limit_%d", maxFileScanEntries), func(t *testing.T) {
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params.maxFileScanEntries = maxFileScanEntries
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entries, _ := l.search(params)
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assert.Len(t, entries, entNum-maxFileScanEntries)
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})
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}
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}
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func TestQueryLogFileDisabled(t *testing.T) {
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l := newQueryLog(Config{
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Enabled: true,
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FileEnabled: false,
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RotationIvl: 1,
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MemSize: 2,
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BaseDir: t.TempDir(),
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})
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addEntry(l, "example1.org", net.IPv4(1, 1, 1, 1), net.IPv4(2, 2, 2, 1))
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addEntry(l, "example2.org", net.IPv4(1, 1, 1, 1), net.IPv4(2, 2, 2, 1))
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// The oldest entry is going to be removed from memory buffer.
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addEntry(l, "example3.org", net.IPv4(1, 1, 1, 1), net.IPv4(2, 2, 2, 1))
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params := newSearchParams()
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ll, _ := l.search(params)
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require.Len(t, ll, 2)
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assert.Equal(t, "example3.org", ll[0].QHost)
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assert.Equal(t, "example2.org", ll[1].QHost)
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}
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func addEntry(l *queryLog, host string, answerStr, client net.IP) {
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q := dns.Msg{
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Question: []dns.Question{{
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Name: host + ".",
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Qtype: dns.TypeA,
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Qclass: dns.ClassINET,
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}},
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}
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a := dns.Msg{
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Question: q.Question,
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Answer: []dns.RR{&dns.A{
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Hdr: dns.RR_Header{
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Name: q.Question[0].Name,
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Rrtype: dns.TypeA,
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Class: dns.ClassINET,
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},
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A: answerStr,
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}},
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}
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res := dnsfilter.Result{
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IsFiltered: true,
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Reason: dnsfilter.Rewritten,
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ServiceName: "SomeService",
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Rules: []*dnsfilter.ResultRule{{
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FilterListID: 1,
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Text: "SomeRule",
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}},
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}
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params := AddParams{
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Question: &q,
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Answer: &a,
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OrigAnswer: &a,
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Result: &res,
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ClientIP: client,
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Upstream: "upstream",
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}
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l.Add(params)
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}
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func assertLogEntry(t *testing.T, entry *logEntry, host string, answer, client net.IP) {
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t.Helper()
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require.NotNil(t, entry)
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assert.Equal(t, host, entry.QHost)
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assert.Equal(t, client, entry.IP)
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assert.Equal(t, "A", entry.QType)
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assert.Equal(t, "IN", entry.QClass)
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msg := &dns.Msg{}
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require.Nil(t, msg.Unpack(entry.Answer))
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require.Len(t, msg.Answer, 1)
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ip := proxyutil.GetIPFromDNSRecord(msg.Answer[0]).To16()
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assert.Equal(t, answer, ip)
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}
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func testEntries() (entries []*logEntry) {
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rsrc := rand.NewSource(time.Now().UnixNano())
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rgen := rand.New(rsrc)
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entries = make([]*logEntry, 1000)
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for i := range entries {
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min := rgen.Intn(60)
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sec := rgen.Intn(60)
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entries[i] = &logEntry{
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Time: time.Date(2020, 1, 1, 0, min, sec, 0, time.UTC),
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}
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}
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return entries
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}
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// logEntriesByTimeDesc is a wrapper over []*logEntry for sorting.
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//
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// NOTE(a.garipov): Weirdly enough, on my machine this gets consistently
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// outperformed by sort.Slice, see the benchmark below. I'm leaving this
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// implementation here, in tests, in case we want to make sure it outperforms on
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// most machines, but for now this is unused in the actual code.
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type logEntriesByTimeDesc []*logEntry
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// Len implements the sort.Interface interface for logEntriesByTimeDesc.
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func (les logEntriesByTimeDesc) Len() (n int) { return len(les) }
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// Less implements the sort.Interface interface for logEntriesByTimeDesc.
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func (les logEntriesByTimeDesc) Less(i, j int) (less bool) {
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return les[i].Time.After(les[j].Time)
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}
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// Swap implements the sort.Interface interface for logEntriesByTimeDesc.
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func (les logEntriesByTimeDesc) Swap(i, j int) { les[i], les[j] = les[j], les[i] }
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func BenchmarkLogEntry_sort(b *testing.B) {
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b.Run("methods", func(b *testing.B) {
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for i := 0; i < b.N; i++ {
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b.StopTimer()
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entries := testEntries()
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b.StartTimer()
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sort.Stable(logEntriesByTimeDesc(entries))
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}
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})
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b.Run("reflect", func(b *testing.B) {
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for i := 0; i < b.N; i++ {
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b.StopTimer()
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entries := testEntries()
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b.StartTimer()
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sort.SliceStable(entries, func(i, j int) (less bool) {
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return entries[i].Time.After(entries[j].Time)
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})
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}
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})
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}
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func TestLogEntriesByTime_sort(t *testing.T) {
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entries := testEntries()
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sort.Sort(logEntriesByTimeDesc(entries))
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for i := range entries[1:] {
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assert.False(t, entries[i+1].Time.After(entries[i].Time),
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"%s %s", entries[i+1].Time, entries[i].Time)
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}
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}
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