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c9d2436d77
Merge in DNS/adguard-home from 2574-external-tests-3 to master Updates #2574. Squashed commit of the following: commit 29d429c65dee2621ca503710a7ba9522f14f55f9 Author: Eugene Burkov <e.burkov@adguard.com> Date: Thu Feb 4 20:06:57 2021 +0300 all: finally fix spacing commit 9e3a3be63b74852a7802e3f1832648444b58e4d0 Author: Eugene Burkov <e.burkov@adguard.com> Date: Thu Feb 4 19:59:09 2021 +0300 aghtest: polish spacing commit 8a984159fe813b95b989803f5b8b78d01a41bd39 Author: Eugene Burkov <e.burkov@adguard.com> Date: Thu Feb 4 18:44:47 2021 +0300 all: fix linux tests, imp code quality commit 0c1b42bacba1b23fa847e1fa032579c525b3eaa1 Author: Eugene Burkov <e.burkov@adguard.com> Date: Thu Feb 4 17:33:12 2021 +0300 all: mv testutil to aghtest package, imp tests
340 lines
9.6 KiB
Go
340 lines
9.6 KiB
Go
package querylog
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import (
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"math/rand"
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"net"
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"os"
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"sort"
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"testing"
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"time"
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"github.com/AdguardTeam/dnsproxy/proxyutil"
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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/miekg/dns"
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"github.com/stretchr/testify/assert"
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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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func prepareTestDir() string {
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const dir = "./agh-test"
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_ = os.RemoveAll(dir)
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_ = os.MkdirAll(dir, 0o755)
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return dir
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}
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// Check adding and loading (with filtering) entries from disk and memory
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func TestQueryLog(t *testing.T) {
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conf := Config{
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Enabled: true,
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FileEnabled: true,
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Interval: 1,
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MemSize: 100,
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}
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conf.BaseDir = prepareTestDir()
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defer func() { _ = os.RemoveAll(conf.BaseDir) }()
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l := newQueryLog(conf)
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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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_ = l.flushLogBuffer(true)
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// start writing to the second file
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_ = 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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_ = 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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// get all entries
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params := newSearchParams()
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entries, _ := l.search(params)
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assert.Len(t, entries, 4)
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assertLogEntry(t, entries[0], "example.com", net.IPv4(1, 1, 1, 4), net.IPv4(2, 2, 2, 4))
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assertLogEntry(t, entries[1], "test.example.org", net.IPv4(1, 1, 1, 3), net.IPv4(2, 2, 2, 3))
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assertLogEntry(t, entries[2], "example.org", net.IPv4(1, 1, 1, 2), net.IPv4(2, 2, 2, 2))
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assertLogEntry(t, entries[3], "example.org", net.IPv4(1, 1, 1, 1), net.IPv4(2, 2, 2, 1))
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// search by domain (strict)
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params = newSearchParams()
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params.searchCriteria = append(params.searchCriteria, searchCriteria{
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criteriaType: ctDomainOrClient,
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strict: true,
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value: "TEST.example.org",
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})
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entries, _ = l.search(params)
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assert.Len(t, entries, 1)
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assertLogEntry(t, entries[0], "test.example.org", net.IPv4(1, 1, 1, 3), net.IPv4(2, 2, 2, 3))
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// search by domain (not strict)
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params = newSearchParams()
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params.searchCriteria = append(params.searchCriteria, searchCriteria{
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criteriaType: ctDomainOrClient,
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strict: false,
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value: "example.ORG",
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})
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entries, _ = l.search(params)
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assert.Len(t, entries, 3)
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assertLogEntry(t, entries[0], "test.example.org", net.IPv4(1, 1, 1, 3), net.IPv4(2, 2, 2, 3))
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assertLogEntry(t, entries[1], "example.org", net.IPv4(1, 1, 1, 2), net.IPv4(2, 2, 2, 2))
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assertLogEntry(t, entries[2], "example.org", net.IPv4(1, 1, 1, 1), net.IPv4(2, 2, 2, 1))
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// search by client IP (strict)
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params = newSearchParams()
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params.searchCriteria = append(params.searchCriteria, searchCriteria{
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criteriaType: ctDomainOrClient,
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strict: true,
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value: "2.2.2.2",
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})
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entries, _ = l.search(params)
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assert.Len(t, entries, 1)
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assertLogEntry(t, entries[0], "example.org", net.IPv4(1, 1, 1, 2), net.IPv4(2, 2, 2, 2))
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// search by client IP (part of)
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params = newSearchParams()
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params.searchCriteria = append(params.searchCriteria, searchCriteria{
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criteriaType: ctDomainOrClient,
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strict: false,
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value: "2.2.2",
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})
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entries, _ = l.search(params)
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assert.Len(t, entries, 4)
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assertLogEntry(t, entries[0], "example.com", net.IPv4(1, 1, 1, 4), net.IPv4(2, 2, 2, 4))
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assertLogEntry(t, entries[1], "test.example.org", net.IPv4(1, 1, 1, 3), net.IPv4(2, 2, 2, 3))
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assertLogEntry(t, entries[2], "example.org", net.IPv4(1, 1, 1, 2), net.IPv4(2, 2, 2, 2))
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assertLogEntry(t, entries[3], "example.org", net.IPv4(1, 1, 1, 1), net.IPv4(2, 2, 2, 1))
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}
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func TestQueryLogOffsetLimit(t *testing.T) {
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conf := Config{
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Enabled: true,
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Interval: 1,
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MemSize: 100,
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}
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conf.BaseDir = prepareTestDir()
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defer func() { _ = os.RemoveAll(conf.BaseDir) }()
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l := newQueryLog(conf)
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// add 10 entries to the log
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for i := 0; i < 10; i++ {
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addEntry(l, "second.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 (first file)
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_ = l.flushLogBuffer(true)
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// add 10 more entries to the log (memory)
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for i := 0; i < 10; i++ {
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addEntry(l, "first.example.org", net.IPv4(1, 1, 1, 1), net.IPv4(2, 2, 2, 1))
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}
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// First page
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params := newSearchParams()
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params.offset = 0
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params.limit = 10
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entries, _ := l.search(params)
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assert.Len(t, entries, 10)
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assert.Equal(t, entries[0].QHost, "first.example.org")
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assert.Equal(t, entries[9].QHost, "first.example.org")
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// Second page
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params.offset = 10
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params.limit = 10
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entries, _ = l.search(params)
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assert.Len(t, entries, 10)
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assert.Equal(t, entries[0].QHost, "second.example.org")
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assert.Equal(t, entries[9].QHost, "second.example.org")
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// Second and a half page
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params.offset = 15
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params.limit = 10
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entries, _ = l.search(params)
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assert.Len(t, entries, 5)
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assert.Equal(t, entries[0].QHost, "second.example.org")
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assert.Equal(t, entries[4].QHost, "second.example.org")
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// Third page
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params.offset = 20
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params.limit = 10
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entries, _ = l.search(params)
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assert.Empty(t, entries)
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}
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func TestQueryLogMaxFileScanEntries(t *testing.T) {
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conf := Config{
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Enabled: true,
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FileEnabled: true,
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Interval: 1,
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MemSize: 100,
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}
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conf.BaseDir = prepareTestDir()
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defer func() { _ = os.RemoveAll(conf.BaseDir) }()
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l := newQueryLog(conf)
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// add 10 entries to the log
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for i := 0; i < 10; 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 (first file)
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_ = l.flushLogBuffer(true)
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params := newSearchParams()
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params.maxFileScanEntries = 5 // do not scan more than 5 records
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entries, _ := l.search(params)
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assert.Len(t, entries, 5)
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params.maxFileScanEntries = 0 // disable the limit
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entries, _ = l.search(params)
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assert.Len(t, entries, 10)
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}
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func TestQueryLogFileDisabled(t *testing.T) {
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conf := Config{
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Enabled: true,
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FileEnabled: false,
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Interval: 1,
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MemSize: 2,
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}
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conf.BaseDir = prepareTestDir()
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defer func() { _ = os.RemoveAll(conf.BaseDir) }()
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l := newQueryLog(conf)
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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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addEntry(l, "example3.org", net.IPv4(1, 1, 1, 1), net.IPv4(2, 2, 2, 1))
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// the oldest entry is now removed from mem buffer
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params := newSearchParams()
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ll, _ := l.search(params)
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assert.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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q.Question = append(q.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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a := dns.Msg{}
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a.Question = append(a.Question, q.Question[0])
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answer := new(dns.A)
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answer.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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answer.A = answerStr
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a.Answer = append(a.Answer, answer)
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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) bool {
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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 := new(dns.Msg)
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assert.Nil(t, msg.Unpack(entry.Answer))
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assert.Len(t, msg.Answer, 1)
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ip := proxyutil.GetIPFromDNSRecord(msg.Answer[0]).To16()
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assert.NotNil(t, ip)
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assert.Equal(t, answer, ip)
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return true
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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 := 1; i < len(entries); i++ {
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assert.False(t, entries[i].Time.After(entries[i-1].Time),
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"%s %s", entries[i].Time, entries[i-1].Time)
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}
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}
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