613 lines
19 KiB
Go
613 lines
19 KiB
Go
package itest
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import (
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"bytes"
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"context"
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"encoding/hex"
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"os"
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"sort"
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"strconv"
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"strings"
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"testing"
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"github.com/lightningnetwork/lnd/lnrpc"
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"github.com/lightningnetwork/lnd/lntest"
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"github.com/lightningnetwork/lnd/macaroons"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"gopkg.in/macaroon.v2"
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)
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// testMacaroonAuthentication makes sure that if macaroon authentication is
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// enabled on the gRPC interface, no requests with missing or invalid
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// macaroons are allowed. Further, the specific access rights (read/write,
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// entity based) and first-party caveats are tested as well.
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func testMacaroonAuthentication(net *lntest.NetworkHarness, ht *harnessTest) {
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var (
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infoReq = &lnrpc.GetInfoRequest{}
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newAddrReq = &lnrpc.NewAddressRequest{
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Type: AddrTypeWitnessPubkeyHash,
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}
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testNode = net.Alice
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)
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testCases := []struct {
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name string
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run func(ctxt context.Context, t *testing.T)
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}{{
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// First test: Make sure we get an error if we use no macaroons
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// but try to connect to a node that has macaroon authentication
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// enabled.
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name: "no macaroon",
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run: func(ctxt context.Context, t *testing.T) {
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conn, err := testNode.ConnectRPC(false)
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require.NoError(t, err)
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defer func() { _ = conn.Close() }()
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client := lnrpc.NewLightningClient(conn)
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_, err = client.GetInfo(ctxt, infoReq)
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require.Error(t, err)
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require.Contains(t, err.Error(), "expected 1 macaroon")
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},
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}, {
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// Second test: Ensure that an invalid macaroon also triggers an
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// error.
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name: "invalid macaroon",
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run: func(ctxt context.Context, t *testing.T) {
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invalidMac, _ := macaroon.New(
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[]byte("dummy_root_key"), []byte("0"), "itest",
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macaroon.LatestVersion,
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)
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cleanup, client := macaroonClient(
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t, testNode, invalidMac,
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)
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defer cleanup()
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_, err := client.GetInfo(ctxt, infoReq)
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require.Error(t, err)
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require.Contains(t, err.Error(), "cannot get macaroon")
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},
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}, {
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// Third test: Try to access a write method with read-only
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// macaroon.
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name: "read only macaroon",
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run: func(ctxt context.Context, t *testing.T) {
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readonlyMac, err := testNode.ReadMacaroon(
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testNode.ReadMacPath(), defaultTimeout,
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)
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require.NoError(t, err)
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cleanup, client := macaroonClient(
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t, testNode, readonlyMac,
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)
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defer cleanup()
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_, err = client.NewAddress(ctxt, newAddrReq)
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require.Error(t, err)
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require.Contains(t, err.Error(), "permission denied")
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},
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}, {
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// Fourth test: Check first-party caveat with timeout that
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// expired 30 seconds ago.
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name: "expired macaroon",
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run: func(ctxt context.Context, t *testing.T) {
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readonlyMac, err := testNode.ReadMacaroon(
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testNode.ReadMacPath(), defaultTimeout,
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)
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require.NoError(t, err)
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timeoutMac, err := macaroons.AddConstraints(
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readonlyMac, macaroons.TimeoutConstraint(-30),
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)
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require.NoError(t, err)
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cleanup, client := macaroonClient(
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t, testNode, timeoutMac,
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)
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defer cleanup()
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_, err = client.GetInfo(ctxt, infoReq)
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require.Error(t, err)
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require.Contains(t, err.Error(), "macaroon has expired")
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},
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}, {
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// Fifth test: Check first-party caveat with invalid IP address.
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name: "invalid IP macaroon",
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run: func(ctxt context.Context, t *testing.T) {
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readonlyMac, err := testNode.ReadMacaroon(
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testNode.ReadMacPath(), defaultTimeout,
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)
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require.NoError(t, err)
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invalidIPAddrMac, err := macaroons.AddConstraints(
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readonlyMac, macaroons.IPLockConstraint(
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"1.1.1.1",
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),
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)
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require.NoError(t, err)
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cleanup, client := macaroonClient(
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t, testNode, invalidIPAddrMac,
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)
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defer cleanup()
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_, err = client.GetInfo(ctxt, infoReq)
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require.Error(t, err)
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require.Contains(t, err.Error(), "different IP address")
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},
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}, {
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// Sixth test: Make sure that if we do everything correct and
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// send the admin macaroon with first-party caveats that we can
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// satisfy, we get a correct answer.
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name: "correct macaroon",
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run: func(ctxt context.Context, t *testing.T) {
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adminMac, err := testNode.ReadMacaroon(
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testNode.AdminMacPath(), defaultTimeout,
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)
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require.NoError(t, err)
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adminMac, err = macaroons.AddConstraints(
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adminMac, macaroons.TimeoutConstraint(30),
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macaroons.IPLockConstraint("127.0.0.1"),
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)
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require.NoError(t, err)
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cleanup, client := macaroonClient(t, testNode, adminMac)
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defer cleanup()
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res, err := client.NewAddress(ctxt, newAddrReq)
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require.NoError(t, err, "get new address")
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assert.Contains(t, res.Address, "bcrt1")
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},
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}, {
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// Seventh test: Bake a macaroon that can only access exactly
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// two RPCs and make sure it works as expected.
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name: "custom URI permissions",
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run: func(ctxt context.Context, t *testing.T) {
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entity := macaroons.PermissionEntityCustomURI
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req := &lnrpc.BakeMacaroonRequest{
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Permissions: []*lnrpc.MacaroonPermission{{
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Entity: entity,
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Action: "/lnrpc.Lightning/GetInfo",
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}, {
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Entity: entity,
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Action: "/lnrpc.Lightning/List" +
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"Permissions",
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}},
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}
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bakeRes, err := testNode.BakeMacaroon(ctxt, req)
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require.NoError(t, err)
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// Create a connection that uses the custom macaroon.
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customMacBytes, err := hex.DecodeString(
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bakeRes.Macaroon,
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)
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require.NoError(t, err)
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customMac := &macaroon.Macaroon{}
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err = customMac.UnmarshalBinary(customMacBytes)
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require.NoError(t, err)
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cleanup, client := macaroonClient(
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t, testNode, customMac,
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)
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defer cleanup()
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// Call GetInfo which should succeed.
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_, err = client.GetInfo(ctxt, infoReq)
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require.NoError(t, err)
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// Call ListPermissions which should also succeed.
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permReq := &lnrpc.ListPermissionsRequest{}
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permRes, err := client.ListPermissions(ctxt, permReq)
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require.NoError(t, err)
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require.Greater(
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t, len(permRes.MethodPermissions), 10,
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"permissions",
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)
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// Try NewAddress which should be denied.
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_, err = client.NewAddress(ctxt, newAddrReq)
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require.Error(t, err)
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require.Contains(t, err.Error(), "permission denied")
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},
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}}
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for _, tc := range testCases {
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tc := tc
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ht.t.Run(tc.name, func(tt *testing.T) {
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ctxt, cancel := context.WithTimeout(
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context.Background(), defaultTimeout,
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)
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defer cancel()
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tc.run(ctxt, tt)
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})
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}
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}
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// testBakeMacaroon checks that when creating macaroons, the permissions param
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// in the request must be set correctly, and the baked macaroon has the intended
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// permissions.
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func testBakeMacaroon(net *lntest.NetworkHarness, t *harnessTest) {
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var testNode = net.Alice
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testCases := []struct {
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name string
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run func(ctxt context.Context, t *testing.T,
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adminClient lnrpc.LightningClient)
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}{{
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// First test: when the permission list is empty in the request,
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// an error should be returned.
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name: "no permission list",
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run: func(ctxt context.Context, t *testing.T,
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adminClient lnrpc.LightningClient) {
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req := &lnrpc.BakeMacaroonRequest{}
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_, err := adminClient.BakeMacaroon(ctxt, req)
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require.Error(t, err)
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assert.Contains(
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t, err.Error(), "permission list cannot be "+
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"empty",
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)
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},
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}, {
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// Second test: when the action in the permission list is not
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// valid, an error should be returned.
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name: "invalid permission list",
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run: func(ctxt context.Context, t *testing.T,
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adminClient lnrpc.LightningClient) {
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req := &lnrpc.BakeMacaroonRequest{
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Permissions: []*lnrpc.MacaroonPermission{{
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Entity: "macaroon",
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Action: "invalid123",
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}},
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}
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_, err := adminClient.BakeMacaroon(ctxt, req)
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require.Error(t, err)
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assert.Contains(
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t, err.Error(), "invalid permission action",
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)
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},
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}, {
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// Third test: when the entity in the permission list is not
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// valid, an error should be returned.
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name: "invalid permission entity",
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run: func(ctxt context.Context, t *testing.T,
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adminClient lnrpc.LightningClient) {
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req := &lnrpc.BakeMacaroonRequest{
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Permissions: []*lnrpc.MacaroonPermission{{
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Entity: "invalid123",
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Action: "read",
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}},
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}
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_, err := adminClient.BakeMacaroon(ctxt, req)
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require.Error(t, err)
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assert.Contains(
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t, err.Error(), "invalid permission entity",
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)
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},
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}, {
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// Fourth test: check that when no root key ID is specified, the
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// default root keyID is used.
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name: "default root key ID",
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run: func(ctxt context.Context, t *testing.T,
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adminClient lnrpc.LightningClient) {
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req := &lnrpc.BakeMacaroonRequest{
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Permissions: []*lnrpc.MacaroonPermission{{
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Entity: "macaroon",
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Action: "read",
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}},
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}
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_, err := adminClient.BakeMacaroon(ctxt, req)
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require.NoError(t, err)
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listReq := &lnrpc.ListMacaroonIDsRequest{}
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resp, err := adminClient.ListMacaroonIDs(ctxt, listReq)
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require.NoError(t, err)
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require.Equal(t, resp.RootKeyIds[0], uint64(0))
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},
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}, {
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// Fifth test: create a macaroon use a non-default root key ID.
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name: "custom root key ID",
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run: func(ctxt context.Context, t *testing.T,
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adminClient lnrpc.LightningClient) {
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rootKeyID := uint64(4200)
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req := &lnrpc.BakeMacaroonRequest{
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RootKeyId: rootKeyID,
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Permissions: []*lnrpc.MacaroonPermission{{
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Entity: "macaroon",
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Action: "read",
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}},
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}
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_, err := adminClient.BakeMacaroon(ctxt, req)
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require.NoError(t, err)
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listReq := &lnrpc.ListMacaroonIDsRequest{}
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resp, err := adminClient.ListMacaroonIDs(ctxt, listReq)
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require.NoError(t, err)
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// the ListMacaroonIDs should give a list of two IDs,
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// the default ID 0, and the newly created ID. The
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// returned response is sorted to guarantee the order so
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// that we can compare them one by one.
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sort.Slice(resp.RootKeyIds, func(i, j int) bool {
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return resp.RootKeyIds[i] < resp.RootKeyIds[j]
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})
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require.Equal(t, resp.RootKeyIds[0], uint64(0))
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require.Equal(t, resp.RootKeyIds[1], rootKeyID)
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},
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}, {
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// Sixth test: check the baked macaroon has the intended
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// permissions. It should succeed in reading, and fail to write
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// a macaroon.
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name: "custom macaroon permissions",
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run: func(ctxt context.Context, t *testing.T,
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adminClient lnrpc.LightningClient) {
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rootKeyID := uint64(4200)
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req := &lnrpc.BakeMacaroonRequest{
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RootKeyId: rootKeyID,
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Permissions: []*lnrpc.MacaroonPermission{{
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Entity: "macaroon",
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Action: "read",
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}},
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}
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bakeResp, err := adminClient.BakeMacaroon(ctxt, req)
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require.NoError(t, err)
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newMac, err := readMacaroonFromHex(bakeResp.Macaroon)
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require.NoError(t, err)
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cleanup, readOnlyClient := macaroonClient(
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t, testNode, newMac,
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)
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defer cleanup()
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// BakeMacaroon requires a write permission, so this
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// call should return an error.
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_, err = readOnlyClient.BakeMacaroon(ctxt, req)
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require.Error(t, err)
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require.Contains(t, err.Error(), "permission denied")
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// ListMacaroon requires a read permission, so this call
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// should succeed.
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listReq := &lnrpc.ListMacaroonIDsRequest{}
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_, err = readOnlyClient.ListMacaroonIDs(ctxt, listReq)
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require.NoError(t, err)
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// Current macaroon can only work on entity macaroon, so
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// a GetInfo request will fail.
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infoReq := &lnrpc.GetInfoRequest{}
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_, err = readOnlyClient.GetInfo(ctxt, infoReq)
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require.Error(t, err)
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require.Contains(t, err.Error(), "permission denied")
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},
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}}
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for _, tc := range testCases {
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tc := tc
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t.t.Run(tc.name, func(tt *testing.T) {
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ctxt, cancel := context.WithTimeout(
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context.Background(), defaultTimeout,
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)
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defer cancel()
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adminMac, err := testNode.ReadMacaroon(
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testNode.AdminMacPath(), defaultTimeout,
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)
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require.NoError(tt, err)
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cleanup, client := macaroonClient(tt, testNode, adminMac)
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defer cleanup()
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tc.run(ctxt, tt, client)
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})
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}
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}
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// testDeleteMacaroonID checks that when deleting a macaroon ID, it removes the
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// specified ID and invalidates all macaroons derived from the key with that ID.
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// Also, it checks deleting the reserved marcaroon ID, DefaultRootKeyID or is
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// forbidden.
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func testDeleteMacaroonID(net *lntest.NetworkHarness, t *harnessTest) {
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var (
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ctxb = context.Background()
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testNode = net.Alice
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)
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ctxt, cancel := context.WithTimeout(ctxb, defaultTimeout)
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defer cancel()
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// Use admin macaroon to create a connection.
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adminMac, err := testNode.ReadMacaroon(
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testNode.AdminMacPath(), defaultTimeout,
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)
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require.NoError(t.t, err)
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cleanup, client := macaroonClient(t.t, testNode, adminMac)
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defer cleanup()
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// Record the number of macaroon IDs before creation.
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listReq := &lnrpc.ListMacaroonIDsRequest{}
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listResp, err := client.ListMacaroonIDs(ctxt, listReq)
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require.NoError(t.t, err)
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numMacIDs := len(listResp.RootKeyIds)
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// Create macaroons for testing.
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rootKeyIDs := []uint64{1, 2, 3}
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macList := make([]string, 0, len(rootKeyIDs))
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for _, id := range rootKeyIDs {
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req := &lnrpc.BakeMacaroonRequest{
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RootKeyId: id,
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Permissions: []*lnrpc.MacaroonPermission{{
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Entity: "macaroon",
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Action: "read",
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}},
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}
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resp, err := client.BakeMacaroon(ctxt, req)
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require.NoError(t.t, err)
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macList = append(macList, resp.Macaroon)
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}
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// Check that the creation is successful.
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listReq = &lnrpc.ListMacaroonIDsRequest{}
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listResp, err = client.ListMacaroonIDs(ctxt, listReq)
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require.NoError(t.t, err)
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// The number of macaroon IDs should be increased by len(rootKeyIDs).
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require.Equal(t.t, numMacIDs+len(rootKeyIDs), len(listResp.RootKeyIds))
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// First test: check deleting the DefaultRootKeyID returns an error.
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defaultID, _ := strconv.ParseUint(
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string(macaroons.DefaultRootKeyID), 10, 64,
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)
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req := &lnrpc.DeleteMacaroonIDRequest{
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RootKeyId: defaultID,
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}
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_, err = client.DeleteMacaroonID(ctxt, req)
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require.Error(t.t, err)
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require.Contains(
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t.t, err.Error(), macaroons.ErrDeletionForbidden.Error(),
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)
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// Second test: check deleting the customized ID returns success.
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req = &lnrpc.DeleteMacaroonIDRequest{
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RootKeyId: rootKeyIDs[0],
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}
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resp, err := client.DeleteMacaroonID(ctxt, req)
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require.NoError(t.t, err)
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require.True(t.t, resp.Deleted)
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// Check that the deletion is successful.
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listReq = &lnrpc.ListMacaroonIDsRequest{}
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listResp, err = client.ListMacaroonIDs(ctxt, listReq)
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require.NoError(t.t, err)
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// The number of macaroon IDs should be decreased by 1.
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require.Equal(t.t, numMacIDs+len(rootKeyIDs)-1, len(listResp.RootKeyIds))
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// Check that the deleted macaroon can no longer access macaroon:read.
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deletedMac, err := readMacaroonFromHex(macList[0])
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require.NoError(t.t, err)
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cleanup, client = macaroonClient(t.t, testNode, deletedMac)
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defer cleanup()
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// Because the macaroon is deleted, it will be treated as an invalid one.
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listReq = &lnrpc.ListMacaroonIDsRequest{}
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_, err = client.ListMacaroonIDs(ctxt, listReq)
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require.Error(t.t, err)
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require.Contains(t.t, err.Error(), "cannot get macaroon")
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}
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// testStatelessInit checks that the stateless initialization of the daemon
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// does not write any macaroon files to the daemon's file system and returns
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// the admin macaroon in the response. It then checks that the password
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// change of the wallet can also happen stateless.
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func testStatelessInit(net *lntest.NetworkHarness, t *harnessTest) {
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var (
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initPw = []byte("stateless")
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newPw = []byte("stateless-new")
|
|
newAddrReq = &lnrpc.NewAddressRequest{
|
|
Type: AddrTypeWitnessPubkeyHash,
|
|
}
|
|
)
|
|
|
|
// First, create a new node and request it to initialize stateless.
|
|
// This should return us the binary serialized admin macaroon that we
|
|
// can then use for further calls.
|
|
carol, _, macBytes, err := net.NewNodeWithSeed(
|
|
"Carol", nil, initPw, true,
|
|
)
|
|
require.NoError(t.t, err)
|
|
if len(macBytes) == 0 {
|
|
t.Fatalf("invalid macaroon returned in stateless init")
|
|
}
|
|
|
|
// Now make sure no macaroon files have been created by the node Carol.
|
|
_, err = os.Stat(carol.AdminMacPath())
|
|
require.Error(t.t, err)
|
|
_, err = os.Stat(carol.ReadMacPath())
|
|
require.Error(t.t, err)
|
|
_, err = os.Stat(carol.InvoiceMacPath())
|
|
require.Error(t.t, err)
|
|
|
|
// Then check that we can unmarshal the binary serialized macaroon.
|
|
adminMac := &macaroon.Macaroon{}
|
|
err = adminMac.UnmarshalBinary(macBytes)
|
|
require.NoError(t.t, err)
|
|
|
|
// Find out if we can actually use the macaroon that has been returned
|
|
// to us for a RPC call.
|
|
conn, err := carol.ConnectRPCWithMacaroon(adminMac)
|
|
require.NoError(t.t, err)
|
|
defer conn.Close()
|
|
adminMacClient := lnrpc.NewLightningClient(conn)
|
|
ctxt, _ := context.WithTimeout(context.Background(), defaultTimeout)
|
|
res, err := adminMacClient.NewAddress(ctxt, newAddrReq)
|
|
require.NoError(t.t, err)
|
|
if !strings.HasPrefix(res.Address, harnessNetParams.Bech32HRPSegwit) {
|
|
t.Fatalf("returned address was not a regtest address")
|
|
}
|
|
|
|
// As a second part, shut down the node and then try to change the
|
|
// password when we start it up again.
|
|
if err := net.RestartNodeNoUnlock(carol, nil); err != nil {
|
|
t.Fatalf("Node restart failed: %v", err)
|
|
}
|
|
changePwReq := &lnrpc.ChangePasswordRequest{
|
|
CurrentPassword: initPw,
|
|
NewPassword: newPw,
|
|
StatelessInit: true,
|
|
}
|
|
ctxb := context.Background()
|
|
response, err := carol.InitChangePassword(ctxb, changePwReq)
|
|
require.NoError(t.t, err)
|
|
|
|
// Again, make sure no macaroon files have been created by the node
|
|
// Carol.
|
|
_, err = os.Stat(carol.AdminMacPath())
|
|
require.Error(t.t, err)
|
|
_, err = os.Stat(carol.ReadMacPath())
|
|
require.Error(t.t, err)
|
|
_, err = os.Stat(carol.InvoiceMacPath())
|
|
require.Error(t.t, err)
|
|
|
|
// Then check that we can unmarshal the new binary serialized macaroon
|
|
// and that it really is a new macaroon.
|
|
if err = adminMac.UnmarshalBinary(response.AdminMacaroon); err != nil {
|
|
t.Fatalf("unable to unmarshal macaroon: %v", err)
|
|
}
|
|
if bytes.Equal(response.AdminMacaroon, macBytes) {
|
|
t.Fatalf("expected new macaroon to be different")
|
|
}
|
|
|
|
// Finally, find out if we can actually use the new macaroon that has
|
|
// been returned to us for a RPC call.
|
|
conn2, err := carol.ConnectRPCWithMacaroon(adminMac)
|
|
require.NoError(t.t, err)
|
|
defer conn2.Close()
|
|
adminMacClient = lnrpc.NewLightningClient(conn2)
|
|
|
|
// Changing the password takes a while, so we use the default timeout
|
|
// of 30 seconds to wait for the connection to be ready.
|
|
ctxt, _ = context.WithTimeout(context.Background(), defaultTimeout)
|
|
res, err = adminMacClient.NewAddress(ctxt, newAddrReq)
|
|
require.NoError(t.t, err)
|
|
if !strings.HasPrefix(res.Address, harnessNetParams.Bech32HRPSegwit) {
|
|
t.Fatalf("returned address was not a regtest address")
|
|
}
|
|
}
|
|
|
|
// readMacaroonFromHex loads a macaroon from a hex string.
|
|
func readMacaroonFromHex(macHex string) (*macaroon.Macaroon, error) {
|
|
macBytes, err := hex.DecodeString(macHex)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
mac := &macaroon.Macaroon{}
|
|
if err := mac.UnmarshalBinary(macBytes); err != nil {
|
|
return nil, err
|
|
}
|
|
return mac, nil
|
|
}
|
|
|
|
func macaroonClient(t *testing.T, testNode *lntest.HarnessNode,
|
|
mac *macaroon.Macaroon) (func(), lnrpc.LightningClient) {
|
|
|
|
conn, err := testNode.ConnectRPCWithMacaroon(mac)
|
|
require.NoError(t, err, "connect to alice")
|
|
|
|
cleanup := func() {
|
|
err := conn.Close()
|
|
require.NoError(t, err, "close")
|
|
}
|
|
return cleanup, lnrpc.NewLightningClient(conn)
|
|
}
|