49a92605b8
Close #1682
Squashed commit of the following:
commit 2fad3544bf8853b1f8f19ad8b7bc8a490c96e533
Author: Simon Zolin <s.zolin@adguard.com>
Date: Mon Jun 22 17:32:45 2020 +0300
minor
commit 7c17992424702d95e6de91f30e8ae2dfcd8de257
Author: Simon Zolin <s.zolin@adguard.com>
Date: Mon Jun 22 16:09:34 2020 +0300
build
commit 16a52e11a015a97d3cbf30362482a4abd052192b
Merge: 7b6a73c8 2c47053c
Author: Simon Zolin <s.zolin@adguard.com>
Date: Mon Jun 22 16:08:32 2020 +0300
Merge remote-tracking branch 'origin/master' into 1682-dhcp-resolve
commit 7b6a73c84b5cb9a073a9dfb7d7bdecd22e1e1318
Author: Simon Zolin <s.zolin@adguard.com>
Date: Mon Jun 22 16:01:34 2020 +0300
tests
commit c2654abb2e5e7b7e3a04e4ddb8e1064b37613929
Author: Simon Zolin <s.zolin@adguard.com>
Date: Mon Jun 1 15:15:13 2020 +0300
+ dnsforward: respond to PTR requests for internal IP addresses
{[IP] => "host"} <- DNSforward <-(leases)-- DHCP
117 lines
3.0 KiB
Go
117 lines
3.0 KiB
Go
package util
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import (
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"io/ioutil"
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"net"
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"os"
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"strings"
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"testing"
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"time"
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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 prepareTestDir() string {
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const dir = "./agh-test"
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_ = os.RemoveAll(dir)
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_ = os.MkdirAll(dir, 0755)
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return dir
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}
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func TestAutoHostsResolution(t *testing.T) {
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ah := AutoHosts{}
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dir := prepareTestDir()
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defer func() { _ = os.RemoveAll(dir) }()
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f, _ := ioutil.TempFile(dir, "")
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defer func() { _ = os.Remove(f.Name()) }()
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defer f.Close()
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_, _ = f.WriteString(" 127.0.0.1 host localhost # comment \n")
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_, _ = f.WriteString(" ::1 localhost#comment \n")
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ah.Init(f.Name())
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// Update from the hosts file
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ah.updateHosts()
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// Existing host
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ips := ah.Process("localhost", dns.TypeA)
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assert.NotNil(t, ips)
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assert.Equal(t, 1, len(ips))
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assert.Equal(t, net.ParseIP("127.0.0.1"), ips[0])
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// Unknown host
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ips = ah.Process("newhost", dns.TypeA)
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assert.Nil(t, ips)
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// Unknown host (comment)
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ips = ah.Process("comment", dns.TypeA)
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assert.Nil(t, ips)
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// Test hosts file
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table := ah.List()
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name, ok := table["127.0.0.1"]
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assert.True(t, ok)
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assert.Equal(t, "host", name)
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// Test PTR
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a, _ := dns.ReverseAddr("127.0.0.1")
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a = strings.TrimSuffix(a, ".")
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assert.True(t, ah.ProcessReverse(a, dns.TypePTR) == "host")
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a, _ = dns.ReverseAddr("::1")
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a = strings.TrimSuffix(a, ".")
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assert.True(t, ah.ProcessReverse(a, dns.TypePTR) == "localhost")
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}
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func TestAutoHostsFSNotify(t *testing.T) {
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ah := AutoHosts{}
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dir := prepareTestDir()
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defer func() { _ = os.RemoveAll(dir) }()
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f, _ := ioutil.TempFile(dir, "")
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defer func() { _ = os.Remove(f.Name()) }()
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defer f.Close()
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// Init
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_, _ = f.WriteString(" 127.0.0.1 host localhost \n")
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ah.Init(f.Name())
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ah.updateHosts()
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// Unknown host
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ips := ah.Process("newhost", dns.TypeA)
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assert.Nil(t, ips)
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// Stat monitoring for changes
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ah.Start()
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defer ah.Close()
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// Update file
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_, _ = f.WriteString("127.0.0.2 newhost\n")
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_ = f.Sync()
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// wait until fsnotify has triggerred and processed the file-modification event
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time.Sleep(50 * time.Millisecond)
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// Check if we are notified about changes
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ips = ah.Process("newhost", dns.TypeA)
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assert.NotNil(t, ips)
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assert.Equal(t, 1, len(ips))
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assert.Equal(t, "127.0.0.2", ips[0].String())
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}
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func TestIP(t *testing.T) {
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assert.Equal(t, "127.0.0.1", DNSUnreverseAddr("1.0.0.127.in-addr.arpa").String())
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assert.Equal(t, "::abcd:1234", DNSUnreverseAddr("4.3.2.1.d.c.b.a.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa").String())
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assert.Equal(t, "::abcd:1234", DNSUnreverseAddr("4.3.2.1.d.c.B.A.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa").String())
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assert.Nil(t, DNSUnreverseAddr("1.0.0.127.in-addr.arpa."))
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assert.Nil(t, DNSUnreverseAddr(".0.0.127.in-addr.arpa"))
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assert.Nil(t, DNSUnreverseAddr(".3.2.1.d.c.b.a.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa"))
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assert.Nil(t, DNSUnreverseAddr("4.3.2.1.d.c.b.a.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0..ip6.arpa"))
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assert.Nil(t, DNSUnreverseAddr("4.3.2.1.d.c.b. .0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa"))
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}
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