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Pull request: dnsfilter: improve cname rewrite validation

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Merge in DNS/adguard-home from 2492-dnsrw-host to master

Closes #2492.

Squashed commit of the following:

commit 7128ed15de86c926ea4cff9fd8d3d3821657254f
Merge: e678c64e6 338209f32
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Dec 28 18:42:25 2020 +0300

    Merge branch 'master' into 2492-dnsrw-host

commit e678c64e656ccf69c6818e9165ff1451f7c8fde6
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Mon Dec 28 18:04:52 2020 +0300

    dnsfilter: improve cname rewrite validation
This commit is contained in:
Ainar Garipov 2020-12-28 18:49:36 +03:00
parent 338209f32b
commit 93ffed7809
3 changed files with 37 additions and 36 deletions
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2
go.mod
View file

@ -5,7 +5,7 @@ go 1.14
require ( require (
github.com/AdguardTeam/dnsproxy v0.33.7 github.com/AdguardTeam/dnsproxy v0.33.7
github.com/AdguardTeam/golibs v0.4.4 github.com/AdguardTeam/golibs v0.4.4
github.com/AdguardTeam/urlfilter v0.14.1 github.com/AdguardTeam/urlfilter v0.14.2
github.com/NYTimes/gziphandler v1.1.1 github.com/NYTimes/gziphandler v1.1.1
github.com/ameshkov/dnscrypt/v2 v2.0.1 github.com/ameshkov/dnscrypt/v2 v2.0.1
github.com/fsnotify/fsnotify v1.4.9 github.com/fsnotify/fsnotify v1.4.9

4
go.sum
View file

@ -26,8 +26,8 @@ github.com/AdguardTeam/golibs v0.4.2/go.mod h1:skKsDKIBB7kkFflLJBpfGX+G8QFTx0WKU
github.com/AdguardTeam/golibs v0.4.4 h1:cM9UySQiYFW79zo5XRwnaIWVzfW4eNXmZktMrWbthpw= github.com/AdguardTeam/golibs v0.4.4 h1:cM9UySQiYFW79zo5XRwnaIWVzfW4eNXmZktMrWbthpw=
github.com/AdguardTeam/golibs v0.4.4/go.mod h1:skKsDKIBB7kkFflLJBpfGX+G8QFTx0WKUzB6TIgtUj4= github.com/AdguardTeam/golibs v0.4.4/go.mod h1:skKsDKIBB7kkFflLJBpfGX+G8QFTx0WKUzB6TIgtUj4=
github.com/AdguardTeam/gomitmproxy v0.2.0/go.mod h1:Qdv0Mktnzer5zpdpi5rAwixNJzW2FN91LjKJCkVbYGU= github.com/AdguardTeam/gomitmproxy v0.2.0/go.mod h1:Qdv0Mktnzer5zpdpi5rAwixNJzW2FN91LjKJCkVbYGU=
github.com/AdguardTeam/urlfilter v0.14.1 h1:imYls0fit9ojA6pP1hWFUEIjyoXbDF85ZM+G67bI48c= github.com/AdguardTeam/urlfilter v0.14.2 h1:k26vEYz0mT/liDGZ0JGIBLYLMHaisIGX1UR0qaVnO4k=
github.com/AdguardTeam/urlfilter v0.14.1/go.mod h1:klx4JbOfc4EaNb5lWLqOwfg+pVcyRukmoJRvO55lL5U= github.com/AdguardTeam/urlfilter v0.14.2/go.mod h1:klx4JbOfc4EaNb5lWLqOwfg+pVcyRukmoJRvO55lL5U=
github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ= github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo= github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=

67
internal/dnsfilter/dnsrewrite_test.go
View file

@ -11,39 +11,40 @@ import (
func TestDNSFilter_CheckHostRules_dnsrewrite(t *testing.T) { func TestDNSFilter_CheckHostRules_dnsrewrite(t *testing.T) {
const text = ` const text = `
|cname^$dnsrewrite=new_cname |cname^$dnsrewrite=new-cname
|a_record^$dnsrewrite=127.0.0.1 |a-record^$dnsrewrite=127.0.0.1
|aaaa_record^$dnsrewrite=::1 |aaaa-record^$dnsrewrite=::1
|txt_record^$dnsrewrite=NOERROR;TXT;hello_world |txt-record^$dnsrewrite=NOERROR;TXT;hello-world
|refused^$dnsrewrite=REFUSED |refused^$dnsrewrite=REFUSED
|a_records^$dnsrewrite=127.0.0.1 |a-records^$dnsrewrite=127.0.0.1
|a_records^$dnsrewrite=127.0.0.2 |a-records^$dnsrewrite=127.0.0.2
|aaaa_records^$dnsrewrite=::1 |aaaa-records^$dnsrewrite=::1
|aaaa_records^$dnsrewrite=::2 |aaaa-records^$dnsrewrite=::2
|disable_one^$dnsrewrite=127.0.0.1 |disable-one^$dnsrewrite=127.0.0.1
|disable_one^$dnsrewrite=127.0.0.2 |disable-one^$dnsrewrite=127.0.0.2
@@||disable_one^$dnsrewrite=127.0.0.1 @@||disable-one^$dnsrewrite=127.0.0.1
|disable_cname^$dnsrewrite=127.0.0.1 |disable-cname^$dnsrewrite=127.0.0.1
|disable_cname^$dnsrewrite=new_cname |disable-cname^$dnsrewrite=new-cname
@@||disable_cname^$dnsrewrite=new_cname @@||disable-cname^$dnsrewrite=new-cname
|disable_cname_many^$dnsrewrite=127.0.0.1 |disable-cname-many^$dnsrewrite=127.0.0.1
|disable_cname_many^$dnsrewrite=new_cname_1 |disable-cname-many^$dnsrewrite=new-cname-1
|disable_cname_many^$dnsrewrite=new_cname_2 |disable-cname-many^$dnsrewrite=new-cname-2
@@||disable_cname_many^$dnsrewrite=new_cname_1 @@||disable-cname-many^$dnsrewrite=new-cname-1
|disable_all^$dnsrewrite=127.0.0.1 |disable-all^$dnsrewrite=127.0.0.1
|disable_all^$dnsrewrite=127.0.0.2 |disable-all^$dnsrewrite=127.0.0.2
@@||disable_all^$dnsrewrite @@||disable-all^$dnsrewrite
` `
f := NewForTest(nil, []Filter{{ID: 0, Data: []byte(text)}}) f := NewForTest(nil, []Filter{{ID: 0, Data: []byte(text)}})
setts := &RequestFilteringSettings{ setts := &RequestFilteringSettings{
FilteringEnabled: true, FilteringEnabled: true,
@ -60,10 +61,10 @@ func TestDNSFilter_CheckHostRules_dnsrewrite(t *testing.T) {
res, err := f.CheckHostRules(host, dtyp, setts) res, err := f.CheckHostRules(host, dtyp, setts)
assert.Nil(t, err) assert.Nil(t, err)
assert.Equal(t, "new_cname", res.CanonName) assert.Equal(t, "new-cname", res.CanonName)
}) })
t.Run("a_record", func(t *testing.T) { t.Run("a-record", func(t *testing.T) {
dtyp := dns.TypeA dtyp := dns.TypeA
host := path.Base(t.Name()) host := path.Base(t.Name())
@ -78,7 +79,7 @@ func TestDNSFilter_CheckHostRules_dnsrewrite(t *testing.T) {
} }
}) })
t.Run("aaaa_record", func(t *testing.T) { t.Run("aaaa-record", func(t *testing.T) {
dtyp := dns.TypeAAAA dtyp := dns.TypeAAAA
host := path.Base(t.Name()) host := path.Base(t.Name())
@ -93,7 +94,7 @@ func TestDNSFilter_CheckHostRules_dnsrewrite(t *testing.T) {
} }
}) })
t.Run("txt_record", func(t *testing.T) { t.Run("txt-record", func(t *testing.T) {
dtyp := dns.TypeTXT dtyp := dns.TypeTXT
host := path.Base(t.Name()) host := path.Base(t.Name())
res, err := f.CheckHostRules(host, dtyp, setts) res, err := f.CheckHostRules(host, dtyp, setts)
@ -102,7 +103,7 @@ func TestDNSFilter_CheckHostRules_dnsrewrite(t *testing.T) {
if dnsrr := res.DNSRewriteResult; assert.NotNil(t, dnsrr) { if dnsrr := res.DNSRewriteResult; assert.NotNil(t, dnsrr) {
assert.Equal(t, dns.RcodeSuccess, dnsrr.RCode) assert.Equal(t, dns.RcodeSuccess, dnsrr.RCode)
if strVals := dnsrr.Response[dtyp]; assert.Len(t, strVals, 1) { if strVals := dnsrr.Response[dtyp]; assert.Len(t, strVals, 1) {
assert.Equal(t, "hello_world", strVals[0]) assert.Equal(t, "hello-world", strVals[0])
} }
} }
}) })
@ -117,7 +118,7 @@ func TestDNSFilter_CheckHostRules_dnsrewrite(t *testing.T) {
} }
}) })
t.Run("a_records", func(t *testing.T) { t.Run("a-records", func(t *testing.T) {
dtyp := dns.TypeA dtyp := dns.TypeA
host := path.Base(t.Name()) host := path.Base(t.Name())
@ -133,7 +134,7 @@ func TestDNSFilter_CheckHostRules_dnsrewrite(t *testing.T) {
} }
}) })
t.Run("aaaa_records", func(t *testing.T) { t.Run("aaaa-records", func(t *testing.T) {
dtyp := dns.TypeAAAA dtyp := dns.TypeAAAA
host := path.Base(t.Name()) host := path.Base(t.Name())
@ -149,7 +150,7 @@ func TestDNSFilter_CheckHostRules_dnsrewrite(t *testing.T) {
} }
}) })
t.Run("disable_one", func(t *testing.T) { t.Run("disable-one", func(t *testing.T) {
dtyp := dns.TypeA dtyp := dns.TypeA
host := path.Base(t.Name()) host := path.Base(t.Name())
@ -164,7 +165,7 @@ func TestDNSFilter_CheckHostRules_dnsrewrite(t *testing.T) {
} }
}) })
t.Run("disable_cname", func(t *testing.T) { t.Run("disable-cname", func(t *testing.T) {
dtyp := dns.TypeA dtyp := dns.TypeA
host := path.Base(t.Name()) host := path.Base(t.Name())
@ -180,17 +181,17 @@ func TestDNSFilter_CheckHostRules_dnsrewrite(t *testing.T) {
} }
}) })
t.Run("disable_cname_many", func(t *testing.T) { t.Run("disable-cname-many", func(t *testing.T) {
dtyp := dns.TypeA dtyp := dns.TypeA
host := path.Base(t.Name()) host := path.Base(t.Name())
res, err := f.CheckHostRules(host, dtyp, setts) res, err := f.CheckHostRules(host, dtyp, setts)
assert.Nil(t, err) assert.Nil(t, err)
assert.Equal(t, "new_cname_2", res.CanonName) assert.Equal(t, "new-cname-2", res.CanonName)
assert.Nil(t, res.DNSRewriteResult) assert.Nil(t, res.DNSRewriteResult)
}) })
t.Run("disable_all", func(t *testing.T) { t.Run("disable-all", func(t *testing.T) {
dtyp := dns.TypeA dtyp := dns.TypeA
host := path.Base(t.Name()) host := path.Base(t.Name())