2020-11-16 16:45:31 +00:00
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package dnsforward
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import (
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2021-04-07 18:16:06 +01:00
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"bytes"
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"encoding/json"
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2021-05-21 12:55:42 +01:00
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"io"
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2021-02-04 17:35:13 +00:00
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"net"
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"net/http"
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"net/http/httptest"
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"os"
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"path/filepath"
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"strings"
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"testing"
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2021-06-01 12:28:34 +01:00
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"github.com/AdguardTeam/AdGuardHome/internal/aghnet"
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"github.com/AdguardTeam/AdGuardHome/internal/filtering"
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"github.com/AdguardTeam/golibs/testutil"
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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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2021-06-15 15:36:49 +01:00
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// fakeSystemResolvers is a mock aghnet.SystemResolvers implementation for
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// tests.
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type fakeSystemResolvers struct {
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// SystemResolvers is embedded here simply to make *fakeSystemResolvers
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// an aghnet.SystemResolvers without actually implementing all methods.
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aghnet.SystemResolvers
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}
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// Get implements the aghnet.SystemResolvers interface for *fakeSystemResolvers.
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// It always returns nil.
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func (fsr *fakeSystemResolvers) Get() (rs []string) {
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return nil
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}
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2021-04-07 18:16:06 +01:00
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func loadTestData(t *testing.T, casesFileName string, cases interface{}) {
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t.Helper()
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var f *os.File
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f, err := os.Open(filepath.Join("testdata", casesFileName))
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require.NoError(t, err)
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testutil.CleanupAndRequireSuccess(t, f.Close)
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err = json.NewDecoder(f).Decode(cases)
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require.NoError(t, err)
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}
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const jsonExt = ".json"
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2021-07-14 19:03:56 +01:00
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func TestDNSForwardHTTP_handleGetConfig(t *testing.T) {
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filterConf := &filtering.Config{
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SafeBrowsingEnabled: true,
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SafeBrowsingCacheSize: 1000,
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SafeSearchEnabled: true,
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SafeSearchCacheSize: 1000,
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ParentalCacheSize: 1000,
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CacheTime: 30,
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}
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forwardConf := ServerConfig{
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UDPListenAddrs: []*net.UDPAddr{},
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TCPListenAddrs: []*net.TCPAddr{},
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FilteringConfig: FilteringConfig{
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ProtectionEnabled: true,
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UpstreamDNS: []string{"8.8.8.8:53", "8.8.4.4:53"},
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},
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ConfigModified: func() {},
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}
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s := createTestServer(t, filterConf, forwardConf, nil)
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s.sysResolvers = &fakeSystemResolvers{}
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2021-10-22 09:58:18 +01:00
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require.NoError(t, s.Start())
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testutil.CleanupAndRequireSuccess(t, s.Stop)
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defaultConf := s.conf
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w := httptest.NewRecorder()
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testCases := []struct {
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conf func() ServerConfig
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name string
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}{{
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conf: func() ServerConfig {
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return defaultConf
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},
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name: "all_right",
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}, {
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conf: func() ServerConfig {
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conf := defaultConf
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conf.FastestAddr = true
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return conf
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},
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name: "fastest_addr",
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}, {
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conf: func() ServerConfig {
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conf := defaultConf
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conf.AllServers = true
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return conf
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},
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name: "parallel",
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}}
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var data map[string]json.RawMessage
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loadTestData(t, t.Name()+jsonExt, &data)
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for _, tc := range testCases {
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caseWant, ok := data[tc.name]
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require.True(t, ok)
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t.Run(tc.name, func(t *testing.T) {
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t.Cleanup(w.Body.Reset)
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s.conf = tc.conf()
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s.handleGetConfig(w, nil)
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assert.Equal(t, "application/json", w.Header().Get("Content-Type"))
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assert.JSONEq(t, string(caseWant), w.Body.String())
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})
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}
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}
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2021-07-14 19:03:56 +01:00
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func TestDNSForwardHTTP_handleSetConfig(t *testing.T) {
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filterConf := &filtering.Config{
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SafeBrowsingEnabled: true,
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SafeBrowsingCacheSize: 1000,
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SafeSearchEnabled: true,
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SafeSearchCacheSize: 1000,
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ParentalCacheSize: 1000,
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CacheTime: 30,
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}
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forwardConf := ServerConfig{
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UDPListenAddrs: []*net.UDPAddr{},
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TCPListenAddrs: []*net.TCPAddr{},
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FilteringConfig: FilteringConfig{
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ProtectionEnabled: true,
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UpstreamDNS: []string{"8.8.8.8:53", "8.8.4.4:53"},
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},
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ConfigModified: func() {},
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}
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s := createTestServer(t, filterConf, forwardConf, nil)
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s.sysResolvers = &fakeSystemResolvers{}
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defaultConf := s.conf
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err := s.Start()
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assert.NoError(t, err)
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testutil.CleanupAndRequireSuccess(t, s.Stop)
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w := httptest.NewRecorder()
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testCases := []struct {
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name string
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wantSet string
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}{{
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name: "upstream_dns",
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wantSet: "",
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}, {
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name: "bootstraps",
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wantSet: "",
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}, {
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name: "blocking_mode_good",
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wantSet: "",
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}, {
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name: "blocking_mode_bad",
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wantSet: "blocking_mode: incorrect value",
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}, {
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name: "ratelimit",
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wantSet: "",
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}, {
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name: "edns_cs_enabled",
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wantSet: "",
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}, {
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name: "dnssec_enabled",
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wantSet: "",
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}, {
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name: "cache_size",
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wantSet: "",
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}, {
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name: "upstream_mode_parallel",
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wantSet: "",
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}, {
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name: "upstream_mode_fastest_addr",
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wantSet: "",
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}, {
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name: "upstream_dns_bad",
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wantSet: `wrong upstreams specification: bad ipport address "!!!": address !!!: ` +
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`missing port in address`,
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}, {
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name: "bootstraps_bad",
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wantSet: `a can not be used as bootstrap dns cause: ` +
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`invalid bootstrap server address: ` +
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`Resolver a is not eligible to be a bootstrap DNS server`,
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}, {
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name: "cache_bad_ttl",
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wantSet: `cache_ttl_min must be less or equal than cache_ttl_max`,
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}, {
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name: "upstream_mode_bad",
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wantSet: `upstream_mode: incorrect value`,
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}, {
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name: "local_ptr_upstreams_good",
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wantSet: "",
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}, {
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name: "local_ptr_upstreams_null",
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wantSet: "",
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}}
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var data map[string]struct {
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Req json.RawMessage `json:"req"`
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Want json.RawMessage `json:"want"`
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}
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loadTestData(t, t.Name()+jsonExt, &data)
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for _, tc := range testCases {
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caseData, ok := data[tc.name]
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require.True(t, ok)
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2020-11-16 16:45:31 +00:00
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t.Run(tc.name, func(t *testing.T) {
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t.Cleanup(func() { s.conf = defaultConf })
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2021-05-21 12:55:42 +01:00
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rBody := io.NopCloser(bytes.NewReader(caseData.Req))
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2021-03-11 18:30:52 +00:00
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var r *http.Request
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r, err = http.NewRequest(http.MethodPost, "http://example.com", rBody)
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require.NoError(t, err)
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s.handleSetConfig(w, r)
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assert.Equal(t, tc.wantSet, strings.TrimSuffix(w.Body.String(), "\n"))
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w.Body.Reset()
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s.handleGetConfig(w, nil)
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assert.JSONEq(t, string(caseData.Want), w.Body.String())
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w.Body.Reset()
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})
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}
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}
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2021-04-07 14:36:38 +01:00
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2021-07-29 15:40:31 +01:00
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func TestIsCommentOrEmpty(t *testing.T) {
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for _, tc := range []struct {
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want assert.BoolAssertionFunc
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str string
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}{{
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want: assert.True,
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str: "",
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}, {
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want: assert.True,
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str: "# comment",
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}, {
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want: assert.False,
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str: "1.2.3.4",
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}} {
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tc.want(t, IsCommentOrEmpty(tc.str))
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}
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}
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2021-04-07 14:36:38 +01:00
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func TestValidateUpstream(t *testing.T) {
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testCases := []struct {
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wantDef assert.BoolAssertionFunc
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name string
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upstream string
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wantErr string
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}{{
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wantDef: assert.True,
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name: "invalid",
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upstream: "1.2.3.4.5",
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wantErr: `bad ipport address "1.2.3.4.5": address 1.2.3.4.5: missing port in address`,
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}, {
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wantDef: assert.True,
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name: "invalid",
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upstream: "123.3.7m",
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wantErr: `bad ipport address "123.3.7m": address 123.3.7m: missing port in address`,
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}, {
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wantDef: assert.True,
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name: "invalid",
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upstream: "htttps://google.com/dns-query",
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wantErr: `wrong protocol`,
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}, {
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wantDef: assert.True,
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name: "invalid",
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upstream: "[/host.com]tls://dns.adguard.com",
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wantErr: `bad upstream for domain "[/host.com]tls://dns.adguard.com": missing separator`,
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}, {
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wantDef: assert.True,
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name: "invalid",
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upstream: "[host.ru]#",
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wantErr: `bad ipport address "[host.ru]#": address [host.ru]#: missing port in address`,
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}, {
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wantDef: assert.True,
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name: "valid_default",
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upstream: "1.1.1.1",
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wantErr: ``,
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}, {
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wantDef: assert.True,
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name: "valid_default",
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upstream: "tls://1.1.1.1",
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2022-01-13 12:05:44 +00:00
|
|
|
wantErr: ``,
|
2021-04-07 14:36:38 +01:00
|
|
|
}, {
|
2022-01-13 12:05:44 +00:00
|
|
|
wantDef: assert.True,
|
2021-04-07 14:36:38 +01:00
|
|
|
name: "valid_default",
|
|
|
|
upstream: "https://dns.adguard.com/dns-query",
|
2022-01-13 12:05:44 +00:00
|
|
|
wantErr: ``,
|
2021-04-07 14:36:38 +01:00
|
|
|
}, {
|
2022-01-13 12:05:44 +00:00
|
|
|
wantDef: assert.True,
|
2021-04-07 14:36:38 +01:00
|
|
|
name: "valid_default",
|
|
|
|
upstream: "sdns://AQMAAAAAAAAAFDE3Ni4xMDMuMTMwLjEzMDo1NDQzINErR_JS3PLCu_iZEIbq95zkSV2LFsigxDIuUso_OQhzIjIuZG5zY3J5cHQuZGVmYXVsdC5uczEuYWRndWFyZC5jb20",
|
2022-01-13 12:05:44 +00:00
|
|
|
wantErr: ``,
|
2021-04-07 14:36:38 +01:00
|
|
|
}, {
|
2022-01-13 12:05:44 +00:00
|
|
|
wantDef: assert.False,
|
2021-04-07 14:36:38 +01:00
|
|
|
name: "valid",
|
|
|
|
upstream: "[/host.com/]1.1.1.1",
|
2022-01-13 12:05:44 +00:00
|
|
|
wantErr: ``,
|
2021-04-07 14:36:38 +01:00
|
|
|
}, {
|
2022-01-13 12:05:44 +00:00
|
|
|
wantDef: assert.False,
|
2021-04-07 14:36:38 +01:00
|
|
|
name: "valid",
|
|
|
|
upstream: "[//]tls://1.1.1.1",
|
2022-01-13 12:05:44 +00:00
|
|
|
wantErr: ``,
|
2021-04-07 14:36:38 +01:00
|
|
|
}, {
|
2022-01-13 12:05:44 +00:00
|
|
|
wantDef: assert.False,
|
2021-04-07 14:36:38 +01:00
|
|
|
name: "valid",
|
|
|
|
upstream: "[/www.host.com/]#",
|
2022-01-13 12:05:44 +00:00
|
|
|
wantErr: ``,
|
2021-04-07 14:36:38 +01:00
|
|
|
}, {
|
2022-01-13 12:05:44 +00:00
|
|
|
wantDef: assert.False,
|
2021-04-07 14:36:38 +01:00
|
|
|
name: "valid",
|
|
|
|
upstream: "[/host.com/google.com/]8.8.8.8",
|
2022-01-13 12:05:44 +00:00
|
|
|
wantErr: ``,
|
2021-04-07 14:36:38 +01:00
|
|
|
}, {
|
2022-01-13 12:05:44 +00:00
|
|
|
wantDef: assert.False,
|
2021-04-07 14:36:38 +01:00
|
|
|
name: "valid",
|
|
|
|
upstream: "[/host/]sdns://AQMAAAAAAAAAFDE3Ni4xMDMuMTMwLjEzMDo1NDQzINErR_JS3PLCu_iZEIbq95zkSV2LFsigxDIuUso_OQhzIjIuZG5zY3J5cHQuZGVmYXVsdC5uczEuYWRndWFyZC5jb20",
|
2022-01-13 12:05:44 +00:00
|
|
|
wantErr: ``,
|
2021-04-07 14:36:38 +01:00
|
|
|
}, {
|
2022-01-13 12:05:44 +00:00
|
|
|
wantDef: assert.False,
|
2021-04-07 14:36:38 +01:00
|
|
|
name: "idna",
|
|
|
|
upstream: "[/пример.рф/]8.8.8.8",
|
2022-01-13 12:05:44 +00:00
|
|
|
wantErr: ``,
|
2021-04-07 14:36:38 +01:00
|
|
|
}, {
|
2022-01-13 12:05:44 +00:00
|
|
|
wantDef: assert.False,
|
2021-04-07 14:36:38 +01:00
|
|
|
name: "bad_domain",
|
|
|
|
upstream: "[/!/]8.8.8.8",
|
2022-01-13 12:05:44 +00:00
|
|
|
wantErr: `bad upstream for domain "[/!/]8.8.8.8": domain at index 0: ` +
|
|
|
|
`bad domain name "!": bad domain name label "!": bad domain name label rune '!'`,
|
2021-04-07 14:36:38 +01:00
|
|
|
}}
|
|
|
|
|
|
|
|
for _, tc := range testCases {
|
|
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
|
|
defaultUpstream, err := validateUpstream(tc.upstream)
|
2022-01-13 12:05:44 +00:00
|
|
|
testutil.AssertErrorMsg(t, tc.wantErr, err)
|
|
|
|
tc.wantDef(t, defaultUpstream)
|
2021-04-07 14:36:38 +01:00
|
|
|
})
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
func TestValidateUpstreamsSet(t *testing.T) {
|
|
|
|
testCases := []struct {
|
|
|
|
name string
|
2022-01-13 12:05:44 +00:00
|
|
|
wantErr string
|
2021-04-07 14:36:38 +01:00
|
|
|
set []string
|
|
|
|
}{{
|
|
|
|
name: "empty",
|
2022-01-13 12:05:44 +00:00
|
|
|
wantErr: ``,
|
2021-04-07 14:36:38 +01:00
|
|
|
set: nil,
|
|
|
|
}, {
|
|
|
|
name: "comment",
|
2022-01-13 12:05:44 +00:00
|
|
|
wantErr: ``,
|
2021-04-07 14:36:38 +01:00
|
|
|
set: []string{"# comment"},
|
|
|
|
}, {
|
2022-01-13 12:05:44 +00:00
|
|
|
name: "valid_no_default",
|
|
|
|
wantErr: `no default upstreams specified`,
|
2021-04-07 14:36:38 +01:00
|
|
|
set: []string{
|
|
|
|
"[/host.com/]1.1.1.1",
|
|
|
|
"[//]tls://1.1.1.1",
|
|
|
|
"[/www.host.com/]#",
|
|
|
|
"[/host.com/google.com/]8.8.8.8",
|
|
|
|
"[/host/]sdns://AQMAAAAAAAAAFDE3Ni4xMDMuMTMwLjEzMDo1NDQzINErR_JS3PLCu_iZEIbq95zkSV2LFsigxDIuUso_OQhzIjIuZG5zY3J5cHQuZGVmYXVsdC5uczEuYWRndWFyZC5jb20",
|
|
|
|
},
|
|
|
|
}, {
|
2022-01-13 12:05:44 +00:00
|
|
|
name: "valid_with_default",
|
|
|
|
wantErr: ``,
|
2021-04-07 14:36:38 +01:00
|
|
|
set: []string{
|
|
|
|
"[/host.com/]1.1.1.1",
|
|
|
|
"[//]tls://1.1.1.1",
|
|
|
|
"[/www.host.com/]#",
|
|
|
|
"[/host.com/google.com/]8.8.8.8",
|
|
|
|
"[/host/]sdns://AQMAAAAAAAAAFDE3Ni4xMDMuMTMwLjEzMDo1NDQzINErR_JS3PLCu_iZEIbq95zkSV2LFsigxDIuUso_OQhzIjIuZG5zY3J5cHQuZGVmYXVsdC5uczEuYWRndWFyZC5jb20",
|
|
|
|
"8.8.8.8",
|
|
|
|
},
|
|
|
|
}, {
|
|
|
|
name: "invalid",
|
2022-01-13 12:05:44 +00:00
|
|
|
wantErr: `cannot prepare the upstream dhcp://fake.dns ([]): unsupported URL scheme: dhcp`,
|
2021-04-07 14:36:38 +01:00
|
|
|
set: []string{"dhcp://fake.dns"},
|
|
|
|
}}
|
|
|
|
|
|
|
|
for _, tc := range testCases {
|
|
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
|
|
err := ValidateUpstreams(tc.set)
|
2022-01-13 12:05:44 +00:00
|
|
|
testutil.AssertErrorMsg(t, tc.wantErr, err)
|
2021-04-07 14:36:38 +01:00
|
|
|
})
|
|
|
|
}
|
|
|
|
}
|