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package cluster_test
import (
"context"
"crypto/tls"
"crypto/x509"
"fmt"
"net/http"
"net/http/httptest"
"os"
"path/filepath"
"testing"
"github.com/cowsql/go-cowsql/driver"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/lxc/incus/v6/internal/server/certificate"
"github.com/lxc/incus/v6/internal/server/cluster"
"github.com/lxc/incus/v6/internal/server/db"
"github.com/lxc/incus/v6/internal/server/state"
localtls "github.com/lxc/incus/v6/shared/tls"
"github.com/lxc/incus/v6/shared/tls/tlstest"
)
func trustedCerts() (map[certificate.Type]map[string]x509.Certificate, error) {
return nil, nil
}
// Basic creation and shutdown. By default, the gateway runs an in-memory gRPC
// server.
func TestGateway_Single(t *testing.T) {
node, cleanup := db.NewTestNode(t)
defer cleanup()
cert := tlstest.TestingKeyPair(t)
s := &state.State{
ServerCert: func() *localtls.CertInfo { return cert },
}
gateway := newGateway(t, node, cert, s)
defer func() { _ = gateway.Shutdown() }()
handlerFuncs := gateway.HandlerFuncs(nil, trustedCerts)
assert.Len(t, handlerFuncs, 1)
for endpoint, f := range handlerFuncs {
c, err := x509.ParseCertificate(cert.KeyPair().Certificate[0])
require.NoError(t, err)
w := httptest.NewRecorder()
r := &http.Request{}
r.Header = http.Header{}
r.Header.Set("X-Dqlite-Version", "1")
r.TLS = &tls.ConnectionState{
PeerCertificates: []*x509.Certificate{c},
}
f(w, r)
assert.Equal(t, 404, w.Code, endpoint)
}
dial := gateway.DialFunc()
netConn, err := dial(context.Background(), "")
assert.NoError(t, err)
assert.NotNil(t, netConn)
require.NoError(t, netConn.Close())
leader, err := gateway.LeaderAddress()
assert.Equal(t, "", leader)
assert.EqualError(t, err, cluster.ErrNodeIsNotClustered.Error())
driver, err := driver.New(
gateway.NodeStore(),
driver.WithDialFunc(gateway.DialFunc()),
)
require.NoError(t, err)
conn, err := driver.Open("test.db")
require.NoError(t, err)
require.NoError(t, conn.Close())
}
// If there's a network address configured, we expose the dqlite endpoint with
// an HTTP handler.
func TestGateway_SingleWithNetworkAddress(t *testing.T) {
node, cleanup := db.NewTestNode(t)
defer cleanup()
cert := tlstest.TestingKeyPair(t)
mux := http.NewServeMux()
server := newServer(cert, mux)
defer server.Close()
address := server.Listener.Addr().String()
setRaftRole(t, node, address)
s := &state.State{
ServerCert: func() *localtls.CertInfo { return cert },
}
gateway := newGateway(t, node, cert, s)
defer func() { _ = gateway.Shutdown() }()
for path, handler := range gateway.HandlerFuncs(nil, trustedCerts) {
mux.HandleFunc(path, handler)
}
driver, err := driver.New(
gateway.NodeStore(),
driver.WithDialFunc(gateway.DialFunc()),
)
require.NoError(t, err)
conn, err := driver.Open("test.db")
require.NoError(t, err)
require.NoError(t, conn.Close())
leader, err := gateway.LeaderAddress()
require.NoError(t, err)
assert.Equal(t, address, leader)
}
// When networked, the grpc and raft endpoints requires the cluster
// certificate.
func TestGateway_NetworkAuth(t *testing.T) {
node, cleanup := db.NewTestNode(t)
defer cleanup()
cert := tlstest.TestingKeyPair(t)
mux := http.NewServeMux()
server := newServer(cert, mux)
defer server.Close()
address := server.Listener.Addr().String()
setRaftRole(t, node, address)
s := &state.State{
ServerCert: func() *localtls.CertInfo { return cert },
}
gateway := newGateway(t, node, cert, s)
defer func() { _ = gateway.Shutdown() }()
for path, handler := range gateway.HandlerFuncs(nil, trustedCerts) {
mux.HandleFunc(path, handler)
}
// Make a request using a certificate different than the cluster one.
certAlt := tlstest.TestingAltKeyPair(t)
config, err := cluster.TLSClientConfig(certAlt, certAlt)
config.InsecureSkipVerify = true // Skip client-side verification
require.NoError(t, err)
client := &http.Client{Transport: &http.Transport{TLSClientConfig: config}}
for path := range gateway.HandlerFuncs(nil, trustedCerts) {
url := fmt.Sprintf("https://%s%s", address, path)
response, err := client.Head(url)
require.NoError(t, err)
assert.Equal(t, http.StatusForbidden, response.StatusCode)
}
}
// RaftNodes returns all nodes of the cluster.
func TestGateway_RaftNodesNotLeader(t *testing.T) {
node, cleanup := db.NewTestNode(t)
defer cleanup()
cert := tlstest.TestingKeyPair(t)
mux := http.NewServeMux()
server := newServer(cert, mux)
defer server.Close()
address := server.Listener.Addr().String()
setRaftRole(t, node, address)
s := &state.State{
ServerCert: func() *localtls.CertInfo { return cert },
}
gateway := newGateway(t, node, cert, s)
defer func() { _ = gateway.Shutdown() }()
nodes, err := gateway.RaftNodes()
require.NoError(t, err)
assert.Len(t, nodes, 1)
assert.Equal(t, nodes[0].ID, uint64(1))
assert.Equal(t, nodes[0].Address, address)
}
// Create a new test Gateway with the given parameters, and ensure no error happens.
func newGateway(t *testing.T, node *db.Node, networkCert *localtls.CertInfo, s *state.State) *cluster.Gateway {
require.NoError(t, os.Mkdir(filepath.Join(node.Dir(), "global"), 0o755))
stateFunc := func() *state.State { return s }
gateway, err := cluster.NewGateway(context.Background(), node, networkCert, stateFunc, cluster.Latency(0.2), cluster.LogLevel("TRACE"))
require.NoError(t, err)
return gateway
}
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