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Pull request: home: provide correct server addrs in mobileconfig

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Updates #3607.
Updates #3568.

Squashed commit of the following:

commit a02f9788f88b3a9339a0900baa02881a77f1fb9b
Author: Ainar Garipov <A.Garipov@AdGuard.COM>
Date:   Fri Sep 17 18:18:31 2021 +0300

    home: provide correct server addrs in mobileconfig
This commit is contained in:
Ainar Garipov 2021-09-17 18:31:07 +03:00
parent 6ac28ee8ee
commit 1714a986e3
9 changed files with 79 additions and 48 deletions
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4
CHANGELOG.md
View file

@ -15,7 +15,8 @@ and this project adheres to
### Added
- Bootstrap DNS server IPs to the `mobileconfig` API responses ([#3568]).
- DNS server IP addresses to the `mobileconfig` API responses ([#3568],
[#3607]).
- Setting the timeout for IP address pinging in the "Fastest IP address" mode
through the new `fastest_timeout` field in the configuration file ([#1992]).
- Static IP address detection on FreeBSD ([#3289]).
@ -199,6 +200,7 @@ In this release, the schema version has changed from 10 to 12.
[#3567]: https://github.com/AdguardTeam/AdGuardHome/issues/3567
[#3568]: https://github.com/AdguardTeam/AdGuardHome/issues/3568
[#3579]: https://github.com/AdguardTeam/AdGuardHome/issues/3579
[#3607]: https://github.com/AdguardTeam/AdGuardHome/issues/3607

2
go.mod
View file

@ -4,7 +4,7 @@ go 1.16
require (
github.com/AdguardTeam/dnsproxy v0.39.5
github.com/AdguardTeam/golibs v0.9.2
github.com/AdguardTeam/golibs v0.9.3
github.com/AdguardTeam/urlfilter v0.14.6
github.com/NYTimes/gziphandler v1.1.1
github.com/ameshkov/dnscrypt/v2 v2.2.2

3
go.sum
View file

@ -13,8 +13,9 @@ github.com/AdguardTeam/dnsproxy v0.39.5 h1:SQorhRLR1241t6hy9CiAGZUjRULhsDJlPJTl0
github.com/AdguardTeam/dnsproxy v0.39.5/go.mod h1:eDpJKAdkHORRwAedjuERv+7SWlcz4cn+5uwrbUAWHRY=
github.com/AdguardTeam/golibs v0.4.0/go.mod h1:skKsDKIBB7kkFflLJBpfGX+G8QFTx0WKUzB6TIgtUj4=
github.com/AdguardTeam/golibs v0.4.2/go.mod h1:skKsDKIBB7kkFflLJBpfGX+G8QFTx0WKUzB6TIgtUj4=
github.com/AdguardTeam/golibs v0.9.2 h1:H3BDFkaosxvb+UgFlNVyN66GZ+JglcZULnJ7z7PukyQ=
github.com/AdguardTeam/golibs v0.9.2/go.mod h1:fCAMwPBJ8S7YMYbTWvYS+eeTLblP5E04IDtNAo7y7IY=
github.com/AdguardTeam/golibs v0.9.3 h1:noeKHJEzrSwxzX0Zi3USM3cXf1qQV99SO772jet/uEY=
github.com/AdguardTeam/golibs v0.9.3/go.mod h1:fCAMwPBJ8S7YMYbTWvYS+eeTLblP5E04IDtNAo7y7IY=
github.com/AdguardTeam/gomitmproxy v0.2.0/go.mod h1:Qdv0Mktnzer5zpdpi5rAwixNJzW2FN91LjKJCkVbYGU=
github.com/AdguardTeam/urlfilter v0.14.6 h1:emqoKZElooHACYehRBYENeKVN1a/rspxiqTIMYLuoIo=
github.com/AdguardTeam/urlfilter v0.14.6/go.mod h1:klx4JbOfc4EaNb5lWLqOwfg+pVcyRukmoJRvO55lL5U=

8
internal/home/config.go
View file

@ -173,7 +173,7 @@ var config = &configuration{
AuthBlockMin: 15,
DNS: dnsConfig{
BindHosts: []net.IP{{0, 0, 0, 0}},
Port: 53,
Port: defaultPortDNS,
StatsInterval: 1,
FilteringConfig: dnsforward.FilteringConfig{
ProtectionEnabled: true, // whether or not use any of filtering features
@ -202,9 +202,9 @@ var config = &configuration{
UsePrivateRDNS: true,
},
TLS: tlsConfigSettings{
PortHTTPS: 443,
PortDNSOverTLS: 853, // needs to be passed through to dnsproxy
PortDNSOverQUIC: 784,
PortHTTPS: defaultPortHTTPS,
PortDNSOverTLS: defaultPortTLS, // needs to be passed through to dnsproxy
PortDNSOverQUIC: defaultPortQUIC,
},
logSettings: logSettings{
LogCompress: false,

6
internal/home/control.go
View file

@ -39,7 +39,7 @@ func httpError(w http.ResponseWriter, code int, format string, args ...interface
func appendDNSAddrs(dst []string, addrs ...net.IP) (res []string) {
for _, addr := range addrs {
var hostport string
if config.DNS.Port != 53 {
if config.DNS.Port != defaultPortDNS {
hostport = netutil.JoinHostPort(addr.String(), config.DNS.Port)
} else {
hostport = addr.String()
@ -285,8 +285,6 @@ func preInstallHandler(handler http.Handler) http.Handler {
return &preInstallHandlerStruct{handler}
}
const defaultHTTPSPort = 443
// handleHTTPSRedirect redirects the request to HTTPS, if needed. If ok is
// true, the middleware must continue handling the request.
func handleHTTPSRedirect(w http.ResponseWriter, r *http.Request) (ok bool) {
@ -304,7 +302,7 @@ func handleHTTPSRedirect(w http.ResponseWriter, r *http.Request) (ok bool) {
if r.TLS == nil && web.forceHTTPS {
hostPort := host
if port := web.conf.PortHTTPS; port != defaultHTTPSPort {
if port := web.conf.PortHTTPS; port != defaultPortHTTPS {
hostPort = netutil.JoinHostPort(host, port)
}

8
internal/home/controlinstall.go
View file

@ -29,8 +29,8 @@ type getAddrsResponse struct {
// handleInstallGetAddresses is the handler for /install/get_addresses endpoint.
func (web *Web) handleInstallGetAddresses(w http.ResponseWriter, r *http.Request) {
data := getAddrsResponse{}
data.WebPort = 80
data.DNSPort = 53
data.WebPort = defaultPortHTTP
data.DNSPort = defaultPortDNS
ifaces, err := aghnet.GetValidNetInterfacesForWeb()
if err != nil {
@ -553,8 +553,8 @@ type getAddrsResponseBeta struct {
// functionality will appear in default handleInstallGetAddresses.
func (web *Web) handleInstallGetAddressesBeta(w http.ResponseWriter, r *http.Request) {
data := getAddrsResponseBeta{}
data.WebPort = 80
data.DNSPort = 53
data.WebPort = defaultPortHTTP
data.DNSPort = defaultPortDNS
ifaces, err := aghnet.GetValidNetInterfacesForWeb()
if err != nil {

11
internal/home/dns.go
View file

@ -19,6 +19,15 @@ import (
yaml "gopkg.in/yaml.v2"
)
// Default ports.
const (
defaultPortDNS = 53
defaultPortHTTP = 80
defaultPortHTTPS = 443
defaultPortQUIC = 784
defaultPortTLS = 853
)
// Called by other modules when configuration is changed
func onConfigModified() {
_ = config.write()
@ -253,7 +262,7 @@ func getDNSEncryption() (de dnsEncryption) {
hostname := tlsConf.ServerName
if tlsConf.PortHTTPS != 0 {
addr := hostname
if tlsConf.PortHTTPS != 443 {
if tlsConf.PortHTTPS != defaultPortHTTPS {
addr = netutil.JoinHostPort(addr, tlsConf.PortHTTPS)
}

48
internal/home/mobileconfig.go
View file

@ -3,6 +3,7 @@ package home
import (
"encoding/json"
"fmt"
"net"
"net/http"
"net/url"
"path"
@ -10,7 +11,6 @@ import (
"github.com/AdguardTeam/AdGuardHome/internal/dnsforward"
"github.com/AdguardTeam/golibs/errors"
"github.com/AdguardTeam/golibs/log"
"github.com/AdguardTeam/golibs/stringutil"
uuid "github.com/satori/go.uuid"
"howett.net/plist"
)
@ -31,9 +31,8 @@ type dnsSettings struct {
// DNSProtocol is not "TLS".
ServerName string `plist:",omitempty"`
// ServerAddresses is a list of plain DNS server IP addresses used to
// resolve the hostname in ServerURL or ServerName.
ServerAddresses []string `plist:",omitempty"`
// ServerAddresses is a list IP addresses of the server.
ServerAddresses []net.IP `plist:",omitempty"`
}
// payloadContent is a Device Management Profile payload.
@ -158,10 +157,19 @@ func handleMobileConfig(w http.ResponseWriter, r *http.Request, dnsp string) {
}
}
dnsIPs, err := collectDNSIPs()
if err != nil {
// Don't add a lot of formatting, since the error is already
// wrapped by collectDNSIPs.
respondJSONError(w, http.StatusInternalServerError, err.Error())
return
}
d := &dnsSettings{
DNSProtocol: dnsp,
ServerName: host,
ServerAddresses: cloneBootstrap(),
ServerAddresses: dnsIPs,
}
mobileconfig, err := encodeMobileConfig(d, clientID)
@ -188,14 +196,6 @@ func handleMobileConfig(w http.ResponseWriter, r *http.Request, dnsp string) {
_, _ = w.Write(mobileconfig)
}
// cloneBootstrap returns a clone of the current bootstrap DNS servers.
func cloneBootstrap() (bootstrap []string) {
config.RLock()
defer config.RUnlock()
return stringutil.CloneSlice(config.DNS.BootstrapDNS)
}
func handleMobileConfigDoH(w http.ResponseWriter, r *http.Request) {
handleMobileConfig(w, r, dnsProtoHTTPS)
}
@ -203,3 +203,25 @@ func handleMobileConfigDoH(w http.ResponseWriter, r *http.Request) {
func handleMobileConfigDoT(w http.ResponseWriter, r *http.Request) {
handleMobileConfig(w, r, dnsProtoTLS)
}
// collectDNSIPs returns a slice of IP addresses the server is listening
// on, including the addresses on all interfaces in cases of unspecified IPs but
// excluding loopback addresses.
func collectDNSIPs() (ips []net.IP, err error) {
// TODO(a.garipov): This really shouldn't be a function that parses
// a list of strings. Instead, we need a function that returns this
// data as []net.IP or []*netutil.IPPort. Maybe someday.
addrs, err := collectDNSAddresses()
if err != nil {
return nil, err
}
for _, addr := range addrs {
ip := net.ParseIP(addr)
if ip != nil && !ip.IsLoopback() {
ips = append(ips, ip)
}
}
return ips, nil
}

37
internal/home/mobileconfig_test.go
View file

@ -3,42 +3,41 @@ package home
import (
"bytes"
"encoding/json"
"net"
"net/http"
"net/http/httptest"
"testing"
"github.com/AdguardTeam/AdGuardHome/internal/dnsforward"
"github.com/AdguardTeam/golibs/netutil"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"howett.net/plist"
)
// testBootstrapDNS are the bootstrap plain DNS server addresses for tests.
var testBootstrapDNS = []string{
"94.140.14.14",
"94.140.15.15",
}
// setupBootstraps is a helper that sets up the bootstrap plain DNS server
// configuration for tests and also tears it down in a cleanup function.
func setupBootstraps(t testing.TB) {
// setupDNSIPs is a helper that sets up the server IP address configuration for
// tests and also tears it down in a cleanup function.
func setupDNSIPs(t testing.TB) {
t.Helper()
prevConfig := config
prevTLS := Context.tls
t.Cleanup(func() {
config = prevConfig
Context.tls = prevTLS
})
config = &configuration{
DNS: dnsConfig{
FilteringConfig: dnsforward.FilteringConfig{
BootstrapDNS: testBootstrapDNS,
},
BindHosts: []net.IP{netutil.IPv4Zero()},
Port: defaultPortDNS,
},
}
Context.tls = &TLSMod{}
}
func TestHandleMobileConfigDoH(t *testing.T) {
setupBootstraps(t)
setupDNSIPs(t)
t.Run("success", func(t *testing.T) {
r, err := http.NewRequest(http.MethodGet, "https://example.com:12345/apple/doh.mobileconfig?host=example.org", nil)
@ -59,7 +58,7 @@ func TestHandleMobileConfigDoH(t *testing.T) {
s := mc.PayloadContent[0].DNSSettings
require.NotNil(t, s)
assert.Equal(t, testBootstrapDNS, s.ServerAddresses)
assert.NotEmpty(t, s.ServerAddresses)
assert.Empty(t, s.ServerName)
assert.Equal(t, "https://example.org/dns-query", s.ServerURL)
})
@ -105,14 +104,14 @@ func TestHandleMobileConfigDoH(t *testing.T) {
s := mc.PayloadContent[0].DNSSettings
require.NotNil(t, s)
assert.Equal(t, testBootstrapDNS, s.ServerAddresses)
assert.NotEmpty(t, s.ServerAddresses)
assert.Empty(t, s.ServerName)
assert.Equal(t, "https://example.org/dns-query/cli42", s.ServerURL)
})
}
func TestHandleMobileConfigDoT(t *testing.T) {
setupBootstraps(t)
setupDNSIPs(t)
t.Run("success", func(t *testing.T) {
r, err := http.NewRequest(http.MethodGet, "https://example.com:12345/apple/dot.mobileconfig?host=example.org", nil)
@ -133,7 +132,7 @@ func TestHandleMobileConfigDoT(t *testing.T) {
s := mc.PayloadContent[0].DNSSettings
require.NotNil(t, s)
assert.Equal(t, testBootstrapDNS, s.ServerAddresses)
assert.NotEmpty(t, s.ServerAddresses)
assert.Equal(t, "example.org", s.ServerName)
assert.Empty(t, s.ServerURL)
})
@ -180,7 +179,7 @@ func TestHandleMobileConfigDoT(t *testing.T) {
s := mc.PayloadContent[0].DNSSettings
require.NotNil(t, s)
assert.Equal(t, testBootstrapDNS, s.ServerAddresses)
assert.NotEmpty(t, s.ServerAddresses)
assert.Equal(t, "cli42.example.org", s.ServerName)
assert.Empty(t, s.ServerURL)
})