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TUN-3019: Remove declarative tunnel entry code

This commit is contained in:
cthuang 2020-05-29 17:21:03 +08:00
parent be0514c5c9
commit fb82b2ced5
36 changed files with 643 additions and 3955 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

139
cmd/cloudflared/tunnel/cmd.go
View File

@ -21,7 +21,6 @@ import (
"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
"github.com/cloudflare/cloudflared/cmd/cloudflared/updater"
"github.com/cloudflare/cloudflared/connection"
"github.com/cloudflare/cloudflared/dbconnect"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/cloudflare/cloudflared/hello"
@ -32,10 +31,8 @@ import (
"github.com/cloudflare/cloudflared/socks"
"github.com/cloudflare/cloudflared/sshlog"
"github.com/cloudflare/cloudflared/sshserver"
"github.com/cloudflare/cloudflared/supervisor"
"github.com/cloudflare/cloudflared/tlsconfig"
"github.com/cloudflare/cloudflared/tunneldns"
"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
"github.com/cloudflare/cloudflared/websocket"
"github.com/coreos/go-systemd/daemon"
@ -93,8 +90,6 @@ const (
// bastionFlag is to enable bastion, or jump host, operation
bastionFlag = "bastion"
noIntentMsg = "The --intent argument is required. Cloudflared looks up an Intent to determine what configuration to use (i.e. which tunnels to start). If you don't have any Intents yet, you can use a placeholder Intent Label for now. Then, when you make an Intent with that label, cloudflared will get notified and open the tunnels you specified in that Intent."
debugLevelWarning = "At debug level, request URL, method, protocol, content legnth and header will be logged. " +
"Response status, content length and header will also be logged in debug level."
)
@ -322,10 +317,6 @@ func StartServer(c *cli.Context, version string, shutdownC, graceShutdownC chan
cancel()
}()
if c.IsSet("use-declarative-tunnels") {
return startDeclarativeTunnel(ctx, c, cloudflaredID, buildInfo, &listeners, logger)
}
// update needs to be after DNS proxy is up to resolve equinox server address
if updater.IsAutoupdateEnabled(c, logger) {
logger.Infof("Autoupdate frequency is set to %v", c.Duration("autoupdate-freq"))
@ -500,124 +491,6 @@ func isProxyDestinationConfigured(staticHost string, c *cli.Context) bool {
return staticHost != "" || c.IsSet(bastionFlag)
}
func startDeclarativeTunnel(ctx context.Context,
c *cli.Context,
cloudflaredID uuid.UUID,
buildInfo *buildinfo.BuildInfo,
listeners *gracenet.Net,
logger logger.Service,
) error {
reverseProxyOrigin, err := defaultOriginConfig(c)
if err != nil {
logger.Errorf("%s", err)
return err
}
reverseProxyConfig, err := pogs.NewReverseProxyConfig(
c.String("hostname"),
reverseProxyOrigin,
c.Uint64("retries"),
c.Duration("proxy-connection-timeout"),
c.Uint64("compression-quality"),
)
if err != nil {
logger.Errorf("Cannot initialize default client config because reverse proxy config is invalid: %s", err)
return err
}
defaultClientConfig := &pogs.ClientConfig{
Version: pogs.InitVersion(),
SupervisorConfig: &pogs.SupervisorConfig{
AutoUpdateFrequency: c.Duration("autoupdate-freq"),
MetricsUpdateFrequency: c.Duration("metrics-update-freq"),
GracePeriod: c.Duration("grace-period"),
},
EdgeConnectionConfig: &pogs.EdgeConnectionConfig{
NumHAConnections: uint8(c.Int("ha-connections")),
HeartbeatInterval: c.Duration("heartbeat-interval"),
Timeout: c.Duration("dial-edge-timeout"),
MaxFailedHeartbeats: c.Uint64("heartbeat-count"),
},
DoHProxyConfigs: []*pogs.DoHProxyConfig{},
ReverseProxyConfigs: []*pogs.ReverseProxyConfig{reverseProxyConfig},
}
autoupdater := updater.NewAutoUpdater(defaultClientConfig.SupervisorConfig.AutoUpdateFrequency, listeners, logger)
originCert, err := getOriginCert(c, logger)
if err != nil {
logger.Errorf("error getting origin cert: %s", err)
return err
}
toEdgeTLSConfig, err := tlsconfig.CreateTunnelConfig(c)
if err != nil {
logger.Errorf("unable to create TLS config to connect with edge: %s", err)
return err
}
tags, err := NewTagSliceFromCLI(c.StringSlice("tag"))
if err != nil {
logger.Errorf("unable to parse tag: %s", err)
return err
}
intentLabel := c.String("intent")
if intentLabel == "" {
logger.Error("--intent was empty")
return fmt.Errorf(noIntentMsg)
}
cloudflaredConfig := &connection.CloudflaredConfig{
BuildInfo: buildInfo,
CloudflaredID: cloudflaredID,
IntentLabel: intentLabel,
Tags: tags,
}
serviceDiscoverer, err := serviceDiscoverer(c, logger)
if err != nil {
logger.Errorf("unable to create service discoverer: %s", err)
return err
}
supervisor, err := supervisor.NewSupervisor(defaultClientConfig, originCert, toEdgeTLSConfig,
serviceDiscoverer, cloudflaredConfig, autoupdater, updater.SupportAutoUpdate(logger), logger)
if err != nil {
logger.Errorf("unable to create Supervisor: %s", err)
return err
}
return supervisor.Run(ctx)
}
func defaultOriginConfig(c *cli.Context) (pogs.OriginConfig, error) {
if c.IsSet("hello-world") {
return &pogs.HelloWorldOriginConfig{}, nil
}
originConfig := &pogs.HTTPOriginConfig{
TCPKeepAlive: c.Duration("proxy-tcp-keepalive"),
DialDualStack: !c.Bool("proxy-no-happy-eyeballs"),
TLSHandshakeTimeout: c.Duration("proxy-tls-timeout"),
TLSVerify: !c.Bool("no-tls-verify"),
OriginCAPool: c.String("origin-ca-pool"),
OriginServerName: c.String("origin-server-name"),
MaxIdleConnections: c.Uint64("proxy-keepalive-connections"),
IdleConnectionTimeout: c.Duration("proxy-keepalive-timeout"),
ProxyConnectionTimeout: c.Duration("proxy-connection-timeout"),
ExpectContinueTimeout: c.Duration("proxy-expect-continue-timeout"),
ChunkedEncoding: c.Bool("no-chunked-encoding"),
}
if c.IsSet("unix-socket") {
unixSocket, err := config.ValidateUnixSocket(c)
if err != nil {
return nil, errors.Wrap(err, "error validating --unix-socket")
}
originConfig.URLString = unixSocket
}
originAddr, err := config.ValidateUrl(c)
if err != nil {
return nil, errors.Wrap(err, "error validating origin URL")
}
originConfig.URLString = originAddr
return originConfig, nil
}
func waitToShutdown(wg *sync.WaitGroup,
errC chan error,
shutdownC, graceShutdownC chan struct{},
@ -1064,18 +937,6 @@ func tunnelFlags(shouldHide bool) []cli.Flag {
EnvVars: []string{"TUNNEL_TRACE_OUTPUT"},
Hidden: shouldHide,
}),
altsrc.NewBoolFlag(&cli.BoolFlag{
Name: "use-declarative-tunnels",
Usage: "Test establishing connections with declarative tunnel methods.",
EnvVars: []string{"TUNNEL_USE_DECLARATIVE"},
Hidden: true,
}),
altsrc.NewStringFlag(&cli.StringFlag{
Name: "intent",
Usage: "The label of an Intent from which `cloudflared` should gets its tunnels from. Intents can be created in the Origin Registry UI.",
EnvVars: []string{"TUNNEL_INTENT"},
Hidden: true,
}),
altsrc.NewBoolFlag(&cli.BoolFlag{
Name: "use-reconnect-token",
Usage: "Test reestablishing connections with the new 'reconnect token' flow.",

10
cmd/cloudflared/tunnel/configuration.go
View File

@ -14,7 +14,6 @@ import (
"github.com/cloudflare/cloudflared/cmd/cloudflared/buildinfo"
"github.com/cloudflare/cloudflared/cmd/cloudflared/config"
"github.com/cloudflare/cloudflared/edgediscovery"
"github.com/cloudflare/cloudflared/logger"
"github.com/cloudflare/cloudflared/origin"
"github.com/cloudflare/cloudflared/tlsconfig"
@ -290,15 +289,6 @@ func prepareTunnelConfig(
}, nil
}
func serviceDiscoverer(c *cli.Context, logger logger.Service) (*edgediscovery.Edge, error) {
// If --edge is specfied, resolve edge server addresses
if len(c.StringSlice("edge")) > 0 {
return edgediscovery.StaticEdge(logger, c.StringSlice("edge"))
}
// Otherwise lookup edge server addresses through service discovery
return edgediscovery.ResolveEdge(logger)
}
func isRunningFromTerminal() bool {
return terminal.IsTerminal(int(os.Stdout.Fd()))
}

57
connection/connection.go
View File

@ -1,57 +0,0 @@
package connection
import (
"context"
"net"
"time"
"github.com/google/uuid"
"github.com/pkg/errors"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/cloudflare/cloudflared/logger"
tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
)
const (
openStreamTimeout = 30 * time.Second
)
type Connection struct {
id uuid.UUID
muxer *h2mux.Muxer
addr *net.TCPAddr
isLongLived bool
longLivedID int
}
func newConnection(muxer *h2mux.Muxer, addr *net.TCPAddr) (*Connection, error) {
id, err := uuid.NewRandom()
if err != nil {
return nil, err
}
return &Connection{
id: id,
muxer: muxer,
addr: addr,
}, nil
}
func (c *Connection) Serve(ctx context.Context) error {
// Serve doesn't return until h2mux is shutdown
return c.muxer.Serve(ctx)
}
// Connect is used to establish connections with cloudflare's edge network
func (c *Connection) Connect(ctx context.Context, parameters *tunnelpogs.ConnectParameters, logger logger.Service) (tunnelpogs.ConnectResult, error) {
tsClient, err := NewRPCClient(ctx, c.muxer, logger, openStreamTimeout)
if err != nil {
return nil, errors.Wrap(err, "cannot create new RPC connection")
}
defer tsClient.Close()
return tsClient.Connect(ctx, parameters)
}
func (c *Connection) Shutdown() {
c.muxer.Shutdown()
}

302
connection/manager.go
View File

@ -1,302 +0,0 @@
package connection
import (
"context"
"crypto/tls"
"fmt"
"sync"
"time"
"github.com/google/uuid"
"github.com/pkg/errors"
"github.com/prometheus/client_golang/prometheus"
"github.com/cloudflare/cloudflared/cmd/cloudflared/buildinfo"
"github.com/cloudflare/cloudflared/edgediscovery"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/cloudflare/cloudflared/logger"
"github.com/cloudflare/cloudflared/streamhandler"
tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
)
const (
quickStartLink = "https://developers.cloudflare.com/argo-tunnel/quickstart/"
faqLink = "https://developers.cloudflare.com/argo-tunnel/faq/"
defaultRetryAfter = time.Second * 5
packageNamespace = "connection"
edgeManagerSubsystem = "edgemanager"
)
// EdgeManager manages connections with the edge
type EdgeManager struct {
// streamHandler handles stream opened by the edge
streamHandler *streamhandler.StreamHandler
// TLSConfig is the TLS configuration to connect with edge
tlsConfig *tls.Config
// cloudflaredConfig is the cloudflared configuration that is determined when the process first starts
cloudflaredConfig *CloudflaredConfig
// serviceDiscoverer returns the next edge addr to connect to
serviceDiscoverer *edgediscovery.Edge
// state is attributes of ConnectionManager that can change during runtime.
state *edgeManagerState
logger logger.Service
metrics *metrics
}
type metrics struct {
// activeStreams is a gauge shared by all muxers of this process to expose the total number of active streams
activeStreams prometheus.Gauge
}
func newMetrics(namespace, subsystem string) *metrics {
return &metrics{
activeStreams: h2mux.NewActiveStreamsMetrics(namespace, subsystem),
}
}
// EdgeManagerConfigurable is the configurable attributes of a EdgeConnectionManager
type EdgeManagerConfigurable struct {
TunnelHostnames []h2mux.TunnelHostname
*tunnelpogs.EdgeConnectionConfig
}
type CloudflaredConfig struct {
CloudflaredID uuid.UUID
Tags []tunnelpogs.Tag
BuildInfo *buildinfo.BuildInfo
IntentLabel string
}
func NewEdgeManager(
streamHandler *streamhandler.StreamHandler,
edgeConnMgrConfigurable *EdgeManagerConfigurable,
userCredential []byte,
tlsConfig *tls.Config,
serviceDiscoverer *edgediscovery.Edge,
cloudflaredConfig *CloudflaredConfig,
logger logger.Service,
) *EdgeManager {
return &EdgeManager{
streamHandler: streamHandler,
tlsConfig: tlsConfig,
cloudflaredConfig: cloudflaredConfig,
serviceDiscoverer: serviceDiscoverer,
state: newEdgeConnectionManagerState(edgeConnMgrConfigurable, userCredential),
logger: logger,
metrics: newMetrics(packageNamespace, edgeManagerSubsystem),
}
}
func (em *EdgeManager) Run(ctx context.Context) error {
defer em.shutdown()
// Currently, declarative tunnels don't have any concept of a stable connection
// Each edge connection is transient and when it dies, it is replaced by a different one,
// not restarted.
// So in the future we should really change this so that n connections are stored individually
connIndex := 0
for {
select {
case <-ctx.Done():
return errors.Wrap(ctx.Err(), "EdgeConnectionManager terminated")
default:
time.Sleep(1 * time.Second)
}
// Create/delete connection one at a time, so we don't need to adjust for connections that are being created/deleted
// in shouldCreateConnection or shouldReduceConnection calculation
if em.state.shouldCreateConnection(em.serviceDiscoverer.AvailableAddrs()) {
if connErr := em.newConnection(ctx, connIndex); connErr != nil {
if !connErr.ShouldRetry {
em.logger.Errorf("connectionManager: %s with error: %s", em.noRetryMessage(), connErr)
return connErr
}
em.logger.Errorf("connectionManager: cannot create new connection: %s", connErr)
} else {
connIndex++
}
} else if em.state.shouldReduceConnection() {
if err := em.closeConnection(ctx); err != nil {
em.logger.Errorf("connectionManager: cannot close connection: %s", err)
}
}
}
}
func (em *EdgeManager) UpdateConfigurable(newConfigurable *EdgeManagerConfigurable) {
em.logger.Infof("New edge connection manager configuration %+v", newConfigurable)
em.state.updateConfigurable(newConfigurable)
}
func (em *EdgeManager) newConnection(ctx context.Context, index int) *tunnelpogs.ConnectError {
edgeTCPAddr, err := em.serviceDiscoverer.GetAddr(index)
if err != nil {
return retryConnection(fmt.Sprintf("edge address discovery error: %v", err))
}
configurable := em.state.getConfigurable()
edgeConn, err := DialEdge(ctx, configurable.Timeout, em.tlsConfig, edgeTCPAddr)
if err != nil {
return retryConnection(fmt.Sprintf("dial edge error: %v", err))
}
// Establish a muxed connection with the edge
// Client mux handshake with agent server
muxer, err := h2mux.Handshake(edgeConn, edgeConn, h2mux.MuxerConfig{
Timeout: configurable.Timeout,
Handler: em.streamHandler,
IsClient: true,
HeartbeatInterval: configurable.HeartbeatInterval,
MaxHeartbeats: configurable.MaxFailedHeartbeats,
Logger: em.logger,
}, em.metrics.activeStreams)
if err != nil {
retryConnection(fmt.Sprintf("couldn't perform handshake with edge: %v", err))
}
h2muxConn, err := newConnection(muxer, edgeTCPAddr)
if err != nil {
return retryConnection(fmt.Sprintf("couldn't create h2mux connection: %v", err))
}
go em.serveConn(ctx, h2muxConn)
connResult, err := h2muxConn.Connect(ctx, &tunnelpogs.ConnectParameters{
CloudflaredID: em.cloudflaredConfig.CloudflaredID,
CloudflaredVersion: em.cloudflaredConfig.BuildInfo.CloudflaredVersion,
NumPreviousAttempts: 0,
OriginCert: em.state.getUserCredential(),
IntentLabel: em.cloudflaredConfig.IntentLabel,
Tags: em.cloudflaredConfig.Tags,
}, em.logger)
if err != nil {
h2muxConn.Shutdown()
return retryConnection(fmt.Sprintf("couldn't connect to edge: %v", err))
}
if connErr := connResult.ConnectError(); connErr != nil {
return connErr
}
em.state.newConnection(h2muxConn)
em.logger.Infof("connectionManager: connected to %s", connResult.ConnectedTo())
if connResult.ClientConfig() != nil {
em.streamHandler.UseConfiguration(ctx, connResult.ClientConfig())
}
return nil
}
func (em *EdgeManager) closeConnection(ctx context.Context) error {
conn := em.state.getFirstConnection()
if conn == nil {
return fmt.Errorf("no connection to close")
}
conn.Shutdown()
// teardown will be handled by EdgeManager.serveConn in another goroutine
return nil
}
func (em *EdgeManager) serveConn(ctx context.Context, conn *Connection) {
err := conn.Serve(ctx)
em.logger.Errorf("connectionManager: Connection closed: %s", err)
em.state.closeConnection(conn)
em.serviceDiscoverer.GiveBack(conn.addr)
}
func (em *EdgeManager) noRetryMessage() string {
messageTemplate := "cloudflared could not register an Argo Tunnel on your account. Please confirm the following before trying again:" +
"1. You have Argo Smart Routing enabled in your account, See Enable Argo section of %s." +
"2. Your credential at %s is still valid. See %s."
return fmt.Sprintf(messageTemplate, quickStartLink, em.state.getConfigurable().UserCredentialPath, faqLink)
}
func (em *EdgeManager) shutdown() {
em.state.shutdown()
}
type edgeManagerState struct {
sync.RWMutex
configurable *EdgeManagerConfigurable
userCredential []byte
conns map[uuid.UUID]*Connection
}
func newEdgeConnectionManagerState(configurable *EdgeManagerConfigurable, userCredential []byte) *edgeManagerState {
return &edgeManagerState{
configurable: configurable,
userCredential: userCredential,
conns: make(map[uuid.UUID]*Connection),
}
}
func (ems *edgeManagerState) shouldCreateConnection(availableEdgeAddrs int) bool {
ems.RLock()
defer ems.RUnlock()
expectedHAConns := int(ems.configurable.NumHAConnections)
if availableEdgeAddrs < expectedHAConns {
expectedHAConns = availableEdgeAddrs
}
return len(ems.conns) < expectedHAConns
}
func (ems *edgeManagerState) shouldReduceConnection() bool {
ems.RLock()
defer ems.RUnlock()
return uint8(len(ems.conns)) > ems.configurable.NumHAConnections
}
func (ems *edgeManagerState) newConnection(conn *Connection) {
ems.Lock()
defer ems.Unlock()
ems.conns[conn.id] = conn
}
func (ems *edgeManagerState) closeConnection(conn *Connection) {
ems.Lock()
defer ems.Unlock()
delete(ems.conns, conn.id)
}
func (ems *edgeManagerState) getFirstConnection() *Connection {
ems.RLock()
defer ems.RUnlock()
for _, conn := range ems.conns {
return conn
}
return nil
}
func (ems *edgeManagerState) shutdown() {
ems.Lock()
defer ems.Unlock()
for _, conn := range ems.conns {
conn.Shutdown()
}
}
func (ems *edgeManagerState) getConfigurable() *EdgeManagerConfigurable {
ems.Lock()
defer ems.Unlock()
return ems.configurable
}
func (ems *edgeManagerState) updateConfigurable(newConfigurable *EdgeManagerConfigurable) {
ems.Lock()
defer ems.Unlock()
ems.configurable = newConfigurable
}
func (ems *edgeManagerState) getUserCredential() []byte {
ems.RLock()
defer ems.RUnlock()
return ems.userCredential
}
func retryConnection(cause string) *tunnelpogs.ConnectError {
return &tunnelpogs.ConnectError{
Cause: cause,
RetryAfter: defaultRetryAfter,
ShouldRetry: true,
}
}

77
connection/manager_test.go
View File

@ -1,77 +0,0 @@
package connection
import (
"net"
"testing"
"time"
"github.com/google/uuid"
"github.com/stretchr/testify/assert"
"github.com/cloudflare/cloudflared/cmd/cloudflared/buildinfo"
"github.com/cloudflare/cloudflared/edgediscovery"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/cloudflare/cloudflared/logger"
"github.com/cloudflare/cloudflared/streamhandler"
"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
)
var (
configurable = &EdgeManagerConfigurable{
[]h2mux.TunnelHostname{
"http.example.com",
"ws.example.com",
"hello.example.com",
},
&pogs.EdgeConnectionConfig{
NumHAConnections: 1,
HeartbeatInterval: 1 * time.Second,
Timeout: 5 * time.Second,
MaxFailedHeartbeats: 3,
UserCredentialPath: "/etc/cloudflared/cert.pem",
},
}
cloudflaredConfig = &CloudflaredConfig{
CloudflaredID: uuid.New(),
Tags: []pogs.Tag{
{Name: "pool", Value: "east-6"},
},
BuildInfo: &buildinfo.BuildInfo{
GoOS: "linux",
GoVersion: "1.12",
GoArch: "amd64",
CloudflaredVersion: "2019.6.0",
},
}
)
func mockEdgeManager() *EdgeManager {
newConfigChan := make(chan<- *pogs.ClientConfig)
useConfigResultChan := make(<-chan *pogs.UseConfigurationResult)
logger := logger.NewOutputWriter(logger.NewMockWriteManager())
edge := edgediscovery.MockEdge(logger, []*net.TCPAddr{})
return NewEdgeManager(
streamhandler.NewStreamHandler(newConfigChan, useConfigResultChan, logger),
configurable,
[]byte{},
nil,
edge,
cloudflaredConfig,
logger,
)
}
func TestUpdateConfigurable(t *testing.T) {
m := mockEdgeManager()
newConfigurable := &EdgeManagerConfigurable{
[]h2mux.TunnelHostname{
"second.example.com",
},
&pogs.EdgeConnectionConfig{
NumHAConnections: 2,
},
}
m.UpdateConfigurable(newConfigurable)
assert.Equal(t, newConfigurable, m.state.getConfigurable())
}

2
go.mod
View File

@ -70,7 +70,7 @@ require (
gopkg.in/square/go-jose.v2 v2.4.0 // indirect
gopkg.in/urfave/cli.v2 v2.0.0-20180128181224-d604b6ffeee8
gopkg.in/yaml.v2 v2.2.4
zombiezen.com/go/capnproto2 v0.0.0-20180616160808-7cfd211c19c7
zombiezen.com/go/capnproto2 v2.18.0+incompatible
)
// ../../go/pkg/mod/github.com/coredns/coredns@v1.2.0/plugin/metrics/metrics.go:40:49: too many arguments in call to prometheus.NewProcessCollector

4
go.sum
View File

@ -9,9 +9,9 @@ github.com/DATA-DOG/go-sqlmock v1.3.3 h1:CWUqKXe0s8A2z6qCgkP4Kru7wC11YoAnoupUKFD
github.com/DATA-DOG/go-sqlmock v1.3.3/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
github.com/GeertJohan/go.incremental v1.0.0/go.mod h1:6fAjUhbVuX1KcMD3c8TEgVUqmo4seqhv0i0kdATSkM0=
github.com/GeertJohan/go.rice v1.0.0/go.mod h1:eH6gbSOAUv07dQuZVnBmoDP8mgsM1rtixis4Tib9if0=
github.com/akavel/rsrc v0.8.0/go.mod h1:uLoCtb9J+EyAqh+26kdrTgmzRBFPGOolLWKpdxkKq+c=
github.com/acmacalister/skittles v0.0.0-20160609003031-7423546701e1 h1:RKnVV4C7qoN/sToLX2y1dqH7T6kKLMHcwRJlgwb9Ggk=
github.com/acmacalister/skittles v0.0.0-20160609003031-7423546701e1/go.mod h1:gI5CyA/CEnS6eqNV22rqs4dG3aGfaSbXgPORIlwr2r0=
github.com/akavel/rsrc v0.8.0/go.mod h1:uLoCtb9J+EyAqh+26kdrTgmzRBFPGOolLWKpdxkKq+c=
github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4 h1:Hs82Z41s6SdL1CELW+XaDYmOH4hkBN4/N9og/AsOv7E=
github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
@ -285,3 +285,5 @@ honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWh
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
zombiezen.com/go/capnproto2 v0.0.0-20180616160808-7cfd211c19c7 h1:CZoOFlTPbKfAShKYrMuUfYbnXexFT1rYRUX1SPnrdE4=
zombiezen.com/go/capnproto2 v0.0.0-20180616160808-7cfd211c19c7/go.mod h1:TMGa8HWGJkXiq4nHe9Zu/JgRF5oUtg4XizFC+Vexbec=
zombiezen.com/go/capnproto2 v2.18.0+incompatible h1:mwfXZniffG5mXokQGHUJWGnqIBggoPfT/CEwon9Yess=
zombiezen.com/go/capnproto2 v2.18.0+incompatible/go.mod h1:XO5Pr2SbXgqZwn0m0Ru54QBqpOf4K5AYBO+8LAOBQEQ=

13
origin/tunnel.go
View File

@ -25,7 +25,6 @@ import (
"github.com/cloudflare/cloudflared/h2mux"
"github.com/cloudflare/cloudflared/logger"
"github.com/cloudflare/cloudflared/signal"
"github.com/cloudflare/cloudflared/streamhandler"
"github.com/cloudflare/cloudflared/tunnelrpc"
tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs"
"github.com/cloudflare/cloudflared/validation"
@ -618,8 +617,8 @@ func (h *TunnelHandler) ServeStream(stream *h2mux.MuxedStream) error {
return reqErr
}
cfRay := streamhandler.FindCfRayHeader(req)
lbProbe := streamhandler.IsLBProbeRequest(req)
cfRay := findCfRayHeader(req)
lbProbe := isLBProbeRequest(req)
h.logRequest(req, cfRay, lbProbe)
var resp *http.Response
@ -833,3 +832,11 @@ func activeIncidentsMsg(incidents []Incident) string {
return preamble + " " + strings.Join(incidentStrings, "; ")
}
func findCfRayHeader(h1 *http.Request) string {
return h1.Header.Get("Cf-Ray")
}
func isLBProbeRequest(req *http.Request) bool {
return strings.HasPrefix(req.UserAgent(), lbProbeUserAgentPrefix)
}

247
originservice/originservice.go
View File

@ -1,247 +0,0 @@
// Package client defines and implements interface to proxy to HTTP, websocket and hello world origins
package originservice
import (
"bufio"
"crypto/tls"
"fmt"
"io"
"net"
"net/http"
"net/url"
"strconv"
"strings"
"github.com/cloudflare/cloudflared/buffer"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/cloudflare/cloudflared/hello"
"github.com/cloudflare/cloudflared/logger"
"github.com/cloudflare/cloudflared/websocket"
"github.com/pkg/errors"
)
// OriginService is an interface to proxy requests to different type of origins
type OriginService interface {
Proxy(stream *h2mux.MuxedStream, req *http.Request) (resp *http.Response, err error)
URL() *url.URL
Summary() string
Shutdown()
}
// HTTPService talks to origin using HTTP/HTTPS
type HTTPService struct {
client http.RoundTripper
originURL *url.URL
chunkedEncoding bool
bufferPool *buffer.Pool
}
func NewHTTPService(transport http.RoundTripper, url *url.URL, chunkedEncoding bool) OriginService {
return &HTTPService{
client: transport,
originURL: url,
chunkedEncoding: chunkedEncoding,
bufferPool: buffer.NewPool(512 * 1024),
}
}
func (hc *HTTPService) Proxy(stream *h2mux.MuxedStream, req *http.Request) (*http.Response, error) {
const responseSourceOrigin = "origin"
// Support for WSGI Servers by switching transfer encoding from chunked to gzip/deflate
if !hc.chunkedEncoding {
req.TransferEncoding = []string{"gzip", "deflate"}
cLength, err := strconv.Atoi(req.Header.Get("Content-Length"))
if err == nil {
req.ContentLength = int64(cLength)
}
}
// Request origin to keep connection alive to improve performance
req.Header.Set("Connection", "keep-alive")
resp, err := hc.client.RoundTrip(req)
if err != nil {
return nil, errors.Wrap(err, "error proxying request to HTTP origin")
}
defer resp.Body.Close()
responseHeaders := h1ResponseToH2Response(resp)
responseHeaders = append(responseHeaders, h2mux.CreateResponseMetaHeader(h2mux.ResponseMetaHeaderField, responseSourceOrigin))
err = stream.WriteHeaders(responseHeaders)
if err != nil {
return nil, errors.Wrap(err, "error writing response header to HTTP origin")
}
if isEventStream(resp) {
writeEventStream(stream, resp.Body)
} else {
// Use CopyBuffer, because Copy only allocates a 32KiB buffer, and cross-stream
// compression generates dictionary on first write
buf := hc.bufferPool.Get()
defer hc.bufferPool.Put(buf)
io.CopyBuffer(stream, resp.Body, buf)
}
return resp, nil
}
func (hc *HTTPService) URL() *url.URL {
return hc.originURL
}
func (hc *HTTPService) Summary() string {
return fmt.Sprintf("HTTP service listening on %s", hc.originURL)
}
func (hc *HTTPService) Shutdown() {}
// WebsocketService talks to origin using WS/WSS
type WebsocketService struct {
tlsConfig *tls.Config
originURL *url.URL
shutdownC chan struct{}
}
func NewWebSocketService(tlsConfig *tls.Config, url *url.URL, logger logger.Service) (OriginService, error) {
listener, err := net.Listen("tcp", "127.0.0.1:")
if err != nil {
return nil, errors.Wrap(err, "cannot start Websocket Proxy Server")
}
shutdownC := make(chan struct{})
go func() {
websocket.StartProxyServer(logger, listener, url.String(), shutdownC, websocket.DefaultStreamHandler)
}()
return &WebsocketService{
tlsConfig: tlsConfig,
originURL: url,
shutdownC: shutdownC,
}, nil
}
func (wsc *WebsocketService) Proxy(stream *h2mux.MuxedStream, req *http.Request) (*http.Response, error) {
if !websocket.IsWebSocketUpgrade(req) {
return nil, fmt.Errorf("request is not a websocket connection")
}
conn, response, err := websocket.ClientConnect(req, wsc.tlsConfig)
if err != nil {
return nil, err
}
defer conn.Close()
err = stream.WriteHeaders(h1ResponseToH2Response(response))
if err != nil {
return nil, errors.Wrap(err, "error writing response header to websocket origin")
}
// Copy to/from stream to the undelying connection. Use the underlying
// connection because cloudflared doesn't operate on the message themselves
websocket.Stream(conn.UnderlyingConn(), stream)
return response, nil
}
func (wsc *WebsocketService) URL() *url.URL {
return wsc.originURL
}
func (wsc *WebsocketService) Summary() string {
return fmt.Sprintf("Websocket listening on %s", wsc.originURL)
}
func (wsc *WebsocketService) Shutdown() {
close(wsc.shutdownC)
}
// HelloWorldService talks to the hello world example origin
type HelloWorldService struct {
client http.RoundTripper
listener net.Listener
originURL *url.URL
shutdownC chan struct{}
bufferPool *buffer.Pool
}
func NewHelloWorldService(transport http.RoundTripper, logger logger.Service) (OriginService, error) {
listener, err := hello.CreateTLSListener("127.0.0.1:")
if err != nil {
return nil, errors.Wrap(err, "cannot start Hello World Server")
}
shutdownC := make(chan struct{})
go func() {
hello.StartHelloWorldServer(logger, listener, shutdownC)
}()
return &HelloWorldService{
client: transport,
listener: listener,
originURL: &url.URL{
Scheme: "https",
Host: listener.Addr().String(),
},
shutdownC: shutdownC,
bufferPool: buffer.NewPool(512 * 1024),
}, nil
}
func (hwc *HelloWorldService) Proxy(stream *h2mux.MuxedStream, req *http.Request) (*http.Response, error) {
// Request origin to keep connection alive to improve performance
req.Header.Set("Connection", "keep-alive")
resp, err := hwc.client.RoundTrip(req)
if err != nil {
return nil, errors.Wrap(err, "error proxying request to Hello World origin")
}
defer resp.Body.Close()
err = stream.WriteHeaders(h1ResponseToH2Response(resp))
if err != nil {
return nil, errors.Wrap(err, "error writing response header to Hello World origin")
}
// Use CopyBuffer, because Copy only allocates a 32KiB buffer, and cross-stream
// compression generates dictionary on first write
buf := hwc.bufferPool.Get()
defer hwc.bufferPool.Put(buf)
io.CopyBuffer(stream, resp.Body, buf)
return resp, nil
}
func (hwc *HelloWorldService) URL() *url.URL {
return hwc.originURL
}
func (hwc *HelloWorldService) Summary() string {
return fmt.Sprintf("Hello World service listening on %s", hwc.originURL)
}
func (hwc *HelloWorldService) Shutdown() {
hwc.listener.Close()
}
func isEventStream(resp *http.Response) bool {
// Check if content-type is text/event-stream. We need to check if the header value starts with text/event-stream
// because text/event-stream; charset=UTF-8 is also valid
// Ref: https://tools.ietf.org/html/rfc7231#section-3.1.1.1
for _, contentType := range resp.Header["content-type"] {
if strings.HasPrefix(strings.ToLower(contentType), "text/event-stream") {
return true
}
}
return false
}
func writeEventStream(stream *h2mux.MuxedStream, respBody io.ReadCloser) {
reader := bufio.NewReader(respBody)
for {
line, err := reader.ReadBytes('\n')
if err != nil {
break
}
stream.Write(line)
}
}
func h1ResponseToH2Response(h1 *http.Response) (h2 []h2mux.Header) {
h2 = []h2mux.Header{{Name: ":status", Value: fmt.Sprintf("%d", h1.StatusCode)}}
for headerName, headerValues := range h1.Header {
for _, headerValue := range headerValues {
h2 = append(h2, h2mux.Header{Name: strings.ToLower(headerName), Value: headerValue})
}
}
return
}

60
originservice/originservice_test.go
View File

@ -1,60 +0,0 @@
package originservice
import (
"net/http"
"testing"
"github.com/stretchr/testify/assert"
)
func TestIsEventStream(t *testing.T) {
tests := []struct {
resp *http.Response
isEventStream bool
}{
{
resp: &http.Response{},
isEventStream: false,
},
{
// isEventStream checks all headers
resp: &http.Response{
Header: http.Header{
"accept": []string{"text/html"},
"content-type": []string{"text/event-stream"},
},
},
isEventStream: true,
},
{
// Content-Type and text/event-stream are case-insensitive. text/event-stream can be followed by OWS parameter
resp: &http.Response{
Header: http.Header{
"content-type": []string{"Text/event-stream;charset=utf-8"},
},
},
isEventStream: true,
},
{
// Content-Type and text/event-stream are case-insensitive. text/event-stream can be followed by OWS parameter
resp: &http.Response{
Header: http.Header{
"content-type": []string{"appication/json", "text/html", "Text/event-stream;charset=utf-8"},
},
},
isEventStream: true,
},
{
// Not an event stream because the content-type value doesn't start with text/event-stream
resp: &http.Response{
Header: http.Header{
"content-type": []string{" text/event-stream"},
},
},
isEventStream: false,
},
}
for _, test := range tests {
assert.Equal(t, test.isEventStream, isEventStream(test.resp), "Header: %v", test.resp.Header)
}
}

34
streamhandler/request.go
View File

@ -1,34 +0,0 @@
package streamhandler
import (
"net/http"
"net/url"
"strings"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/pkg/errors"
)
const (
lbProbeUserAgentPrefix = "Mozilla/5.0 (compatible; Cloudflare-Traffic-Manager/1.0; +https://www.cloudflare.com/traffic-manager/;"
)
func FindCfRayHeader(h1 *http.Request) string {
return h1.Header.Get("Cf-Ray")
}
func IsLBProbeRequest(req *http.Request) bool {
return strings.HasPrefix(req.UserAgent(), lbProbeUserAgentPrefix)
}
func createRequest(stream *h2mux.MuxedStream, url *url.URL) (*http.Request, error) {
req, err := http.NewRequest(http.MethodGet, url.String(), h2mux.MuxedStreamReader{MuxedStream: stream})
if err != nil {
return nil, errors.Wrap(err, "unexpected error from http.NewRequest")
}
err = h2mux.H2RequestHeadersToH1Request(stream.Headers, req)
if err != nil {
return nil, errors.Wrap(err, "invalid request received")
}
return req, nil
}

189
streamhandler/stream_handler.go
View File

@ -1,189 +0,0 @@
package streamhandler
import (
"context"
"fmt"
"net/http"
"strconv"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/cloudflare/cloudflared/logger"
"github.com/cloudflare/cloudflared/tunnelhostnamemapper"
"github.com/cloudflare/cloudflared/tunnelrpc"
"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
"github.com/pkg/errors"
"zombiezen.com/go/capnproto2/rpc"
)
const (
statusPseudoHeader = ":status"
)
type httpErrorStatus struct {
status string
text []byte
}
var (
statusBadRequest = newHTTPErrorStatus(http.StatusBadRequest)
statusNotFound = newHTTPErrorStatus(http.StatusNotFound)
statusBadGateway = newHTTPErrorStatus(http.StatusBadGateway)
)
func newHTTPErrorStatus(status int) *httpErrorStatus {
return &httpErrorStatus{
status: strconv.Itoa(status),
text: []byte(http.StatusText(status)),
}
}
// StreamHandler handles new stream opened by the edge. The streams can be used to proxy requests or make RPC.
type StreamHandler struct {
// newConfigChan is a send-only channel to notify Supervisor of a new ClientConfig
newConfigChan chan<- *pogs.ClientConfig
// useConfigResultChan is a receive-only channel for Supervisor to communicate the result of applying a new ClientConfig
useConfigResultChan <-chan *pogs.UseConfigurationResult
// originMapper maps tunnel hostname to origin service
tunnelHostnameMapper *tunnelhostnamemapper.TunnelHostnameMapper
logger logger.Service
}
// NewStreamHandler creates a new StreamHandler
func NewStreamHandler(newConfigChan chan<- *pogs.ClientConfig,
useConfigResultChan <-chan *pogs.UseConfigurationResult,
logger logger.Service,
) *StreamHandler {
return &StreamHandler{
newConfigChan: newConfigChan,
useConfigResultChan: useConfigResultChan,
tunnelHostnameMapper: tunnelhostnamemapper.NewTunnelHostnameMapper(),
logger: logger,
}
}
// UseConfiguration implements ClientService
func (s *StreamHandler) UseConfiguration(ctx context.Context, config *pogs.ClientConfig) (*pogs.UseConfigurationResult, error) {
select {
case <-ctx.Done():
err := fmt.Errorf("Timeout while sending new config to Supervisor")
s.logger.Errorf("streamHandler: %s", err)
return nil, err
case s.newConfigChan <- config:
}
select {
case <-ctx.Done():
err := fmt.Errorf("Timeout applying new configuration")
s.logger.Errorf("streamHandler: %s", err)
return nil, err
case result := <-s.useConfigResultChan:
return result, nil
}
}
// UpdateConfig replaces current originmapper mapping with mappings from newConfig
func (s *StreamHandler) UpdateConfig(newConfig []*pogs.ReverseProxyConfig) (failedConfigs []*pogs.FailedConfig) {
// Delete old configs that aren't in the `newConfig`
toRemove := s.tunnelHostnameMapper.ToRemove(newConfig)
for _, hostnameToRemove := range toRemove {
s.tunnelHostnameMapper.Delete(hostnameToRemove)
}
// Add new configs that weren't in the old mapper
toAdd := s.tunnelHostnameMapper.ToAdd(newConfig)
for _, tunnelConfig := range toAdd {
tunnelHostname := tunnelConfig.TunnelHostname
originSerice, err := tunnelConfig.OriginConfig.Service(s.logger)
if err != nil {
s.logger.Errorf("streamHandler: tunnelHostname: %s Invalid origin service config: %s", tunnelHostname, err)
failedConfigs = append(failedConfigs, &pogs.FailedConfig{
Config: tunnelConfig,
Reason: tunnelConfig.FailReason(err),
})
continue
}
s.tunnelHostnameMapper.Add(tunnelConfig.TunnelHostname, originSerice)
s.logger.Infof("streamHandler: tunnelHostname: %s New origin service config: %v", tunnelHostname, originSerice.Summary())
}
return
}
// ServeStream implements MuxedStreamHandler interface
func (s *StreamHandler) ServeStream(stream *h2mux.MuxedStream) error {
if stream.IsRPCStream() {
return s.serveRPC(stream)
}
if err := s.serveRequest(stream); err != nil {
s.logger.Errorf("streamHandler: %s", err)
return err
}
return nil
}
func (s *StreamHandler) serveRPC(stream *h2mux.MuxedStream) error {
stream.WriteHeaders([]h2mux.Header{{Name: ":status", Value: "200"}})
main := pogs.ClientService_ServerToClient(s)
rpcConn := rpc.NewConn(
tunnelrpc.NewTransportLogger(s.logger, rpc.StreamTransport(stream)),
rpc.MainInterface(main.Client),
tunnelrpc.ConnLog(s.logger),
)
return rpcConn.Wait()
}
func (s *StreamHandler) serveRequest(stream *h2mux.MuxedStream) error {
tunnelHostname := stream.TunnelHostname()
if !tunnelHostname.IsSet() {
s.writeErrorStatus(stream, statusBadRequest)
return fmt.Errorf("stream doesn't have tunnelHostname")
}
originService, ok := s.tunnelHostnameMapper.Get(tunnelHostname)
if !ok {
s.writeErrorStatus(stream, statusNotFound)
return fmt.Errorf("cannot map tunnel hostname %s to origin", tunnelHostname)
}
req, err := createRequest(stream, originService.URL())
if err != nil {
s.writeErrorStatus(stream, statusBadRequest)
return errors.Wrap(err, "cannot create request")
}
cfRay := s.logRequest(req, tunnelHostname)
s.logger.Debugf("streamHandler: tunnelHostname: %s CF-RAY: %s Request Headers %+v", tunnelHostname, cfRay, req.Header)
resp, err := originService.Proxy(stream, req)
if err != nil {
s.writeErrorStatus(stream, statusBadGateway)
return errors.Wrap(err, "cannot proxy request")
}
s.logger.Debugf("streamHandler: tunnelHostname: %s CF-RAY: %s status: %s Response Headers %+v", tunnelHostname, cfRay, resp.Status, resp.Header)
return nil
}
func (s *StreamHandler) logRequest(req *http.Request, tunnelHostname h2mux.TunnelHostname) string {
cfRay := FindCfRayHeader(req)
lbProbe := IsLBProbeRequest(req)
logger := s.logger
if cfRay != "" {
logger.Debugf("streamHandler: tunnelHostname: %s CF-RAY: %s %s %s %s", tunnelHostname, cfRay, req.Method, req.URL, req.Proto)
} else if lbProbe {
logger.Debugf("streamHandler: tunnelHostname: %s CF-RAY: %s Load Balancer health check %s %s %s", tunnelHostname, cfRay, req.Method, req.URL, req.Proto)
} else {
logger.Infof("streamHandler: tunnelHostname: %s CF-RAY: %s Requests %v does not have CF-RAY header. Please open a support ticket with Cloudflare.", tunnelHostname, cfRay, req)
}
return cfRay
}
func (s *StreamHandler) writeErrorStatus(stream *h2mux.MuxedStream, status *httpErrorStatus) {
_ = stream.WriteHeaders([]h2mux.Header{
{
Name: statusPseudoHeader,
Value: status.status,
},
h2mux.CreateResponseMetaHeader(h2mux.ResponseMetaHeaderField, h2mux.ResponseSourceCloudflared),
})
_, _ = stream.Write(status.text)
}

261
streamhandler/stream_handler_test.go
View File

@ -1,261 +0,0 @@
package streamhandler
import (
"context"
"io"
"net"
"net/http"
"net/http/httptest"
"strconv"
"sync"
"testing"
"time"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/cloudflare/cloudflared/logger"
"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
"github.com/pkg/errors"
"github.com/stretchr/testify/assert"
"golang.org/x/sync/errgroup"
)
const (
testOpenStreamTimeout = time.Millisecond * 5000
testHandshakeTimeout = time.Millisecond * 1000
)
var (
testTunnelHostname = h2mux.TunnelHostname("123.cftunnel.com")
baseHeaders = []h2mux.Header{
{Name: ":method", Value: "GET"},
{Name: ":scheme", Value: "http"},
{Name: ":authority", Value: "example.com"},
{Name: ":path", Value: "/"},
// Regular headers must always come after the pseudoheaders
{Name: h2mux.RequestUserHeadersField, Value: ""},
}
tunnelHostnameHeader = h2mux.Header{Name: h2mux.CloudflaredProxyTunnelHostnameHeader, Value: testTunnelHostname.String()}
)
func TestServeRequest(t *testing.T) {
l := logger.NewOutputWriter(logger.NewMockWriteManager())
configChan := make(chan *pogs.ClientConfig)
useConfigResultChan := make(chan *pogs.UseConfigurationResult)
streamHandler := NewStreamHandler(configChan, useConfigResultChan, l)
message := []byte("Hello cloudflared")
httpServer := httptest.NewServer(&mockHTTPHandler{message})
reverseProxyConfigs := []*pogs.ReverseProxyConfig{
{
TunnelHostname: testTunnelHostname,
OriginConfig: &pogs.HTTPOriginConfig{
URLString: httpServer.URL,
},
},
}
streamHandler.UpdateConfig(reverseProxyConfigs)
muxPair := NewDefaultMuxerPair(t, streamHandler)
muxPair.Serve(t)
ctx, cancel := context.WithTimeout(context.Background(), testOpenStreamTimeout)
defer cancel()
headers := append(baseHeaders, tunnelHostnameHeader)
stream, err := muxPair.EdgeMux.OpenStream(ctx, headers, nil)
assert.NoError(t, err)
assertStatusHeader(t, http.StatusOK, stream.Headers)
assertRespBody(t, message, stream)
}
func createStreamHandler() *StreamHandler {
configChan := make(chan *pogs.ClientConfig)
useConfigResultChan := make(chan *pogs.UseConfigurationResult)
l := logger.NewOutputWriter(logger.NewMockWriteManager())
return NewStreamHandler(configChan, useConfigResultChan, l)
}
func createRequestMuxPair(t *testing.T, streamHandler *StreamHandler) *DefaultMuxerPair {
muxPair := NewDefaultMuxerPair(t, streamHandler)
muxPair.Serve(t)
return muxPair
}
func TestServeStatusBadRequest(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), testOpenStreamTimeout)
defer cancel()
// No tunnel hostname header, expect to get 400 Bad Request
stream, err := createRequestMuxPair(t, createStreamHandler()).EdgeMux.OpenStream(ctx, baseHeaders, nil)
assert.NoError(t, err)
assertStatusHeader(t, http.StatusBadRequest, stream.Headers)
assertRespBody(t, statusBadRequest.text, stream)
}
func TestServeInvalidContentLength(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), testOpenStreamTimeout)
defer cancel()
// Invalid content-length, wouldn't be able to create a request
// Expect to get 400 Bad Request
headers := append(baseHeaders, tunnelHostnameHeader)
headers = append(headers, h2mux.Header{
Name: "content-length",
Value: "x",
})
streamHandler := createStreamHandler()
streamHandler.UpdateConfig([]*pogs.ReverseProxyConfig{
{
TunnelHostname: testTunnelHostname,
OriginConfig: &pogs.HTTPOriginConfig{
URLString: "",
},
},
})
mux := createRequestMuxPair(t, streamHandler).EdgeMux
stream, err := mux.OpenStream(ctx, headers, nil)
assert.NoError(t, err)
assertStatusHeader(t, http.StatusBadRequest, stream.Headers)
assertRespBody(t, statusBadRequest.text, stream)
}
func TestServeStatusNotFound(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), testOpenStreamTimeout)
defer cancel()
// No mapping for the tunnel hostname, expect to get 404 Not Found
headers := append(baseHeaders, tunnelHostnameHeader)
stream, err := createRequestMuxPair(t, createStreamHandler()).EdgeMux.OpenStream(ctx, headers, nil)
assert.NoError(t, err)
assertStatusHeader(t, http.StatusNotFound, stream.Headers)
assertRespBody(t, statusNotFound.text, stream)
}
func TestServeStatusBadGateway(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), testOpenStreamTimeout)
defer cancel()
// Nothing listening on empty url, so proxy would fail. Expect to get 502 Bad Gateway
reverseProxyConfigs := []*pogs.ReverseProxyConfig{
{
TunnelHostname: testTunnelHostname,
OriginConfig: &pogs.HTTPOriginConfig{
URLString: "",
},
},
}
streamHandler := createStreamHandler()
streamHandler.UpdateConfig(reverseProxyConfigs)
headers := append(baseHeaders, tunnelHostnameHeader)
stream, err := createRequestMuxPair(t, streamHandler).EdgeMux.OpenStream(ctx, headers, nil)
assert.NoError(t, err)
assertStatusHeader(t, http.StatusBadGateway, stream.Headers)
assertRespBody(t, statusBadGateway.text, stream)
}
func assertStatusHeader(t *testing.T, expectedStatus int, headers []h2mux.Header) {
assert.Equal(t, statusPseudoHeader, headers[0].Name)
assert.Equal(t, strconv.Itoa(expectedStatus), headers[0].Value)
}
func assertRespBody(t *testing.T, expectedRespBody []byte, stream *h2mux.MuxedStream) {
respBody := make([]byte, len(expectedRespBody))
_, err := stream.Read(respBody)
assert.NoError(t, err)
assert.Equal(t, expectedRespBody, respBody)
}
type DefaultMuxerPair struct {
OriginMuxConfig h2mux.MuxerConfig
OriginMux *h2mux.Muxer
OriginConn net.Conn
EdgeMuxConfig h2mux.MuxerConfig
EdgeMux *h2mux.Muxer
EdgeConn net.Conn
doneC chan struct{}
}
func NewDefaultMuxerPair(t *testing.T, h h2mux.MuxedStreamHandler) *DefaultMuxerPair {
origin, edge := net.Pipe()
p := &DefaultMuxerPair{
OriginMuxConfig: h2mux.MuxerConfig{
Timeout: testHandshakeTimeout,
Handler: h,
IsClient: true,
Name: "origin",
Logger: logger.NewOutputWriter(logger.NewMockWriteManager()),
DefaultWindowSize: (1 << 8) - 1,
MaxWindowSize: (1 << 15) - 1,
StreamWriteBufferMaxLen: 1024,
},
OriginConn: origin,
EdgeMuxConfig: h2mux.MuxerConfig{
Timeout: testHandshakeTimeout,
IsClient: false,
Name: "edge",
Logger: logger.NewOutputWriter(logger.NewMockWriteManager()),
DefaultWindowSize: (1 << 8) - 1,
MaxWindowSize: (1 << 15) - 1,
StreamWriteBufferMaxLen: 1024,
},
EdgeConn: edge,
doneC: make(chan struct{}),
}
assert.NoError(t, p.Handshake(t.Name()))
return p
}
func (p *DefaultMuxerPair) Handshake(testName string) error {
ctx, cancel := context.WithTimeout(context.Background(), testHandshakeTimeout)
defer cancel()
errGroup, _ := errgroup.WithContext(ctx)
errGroup.Go(func() (err error) {
p.EdgeMux, err = h2mux.Handshake(p.EdgeConn, p.EdgeConn, p.EdgeMuxConfig, h2mux.NewActiveStreamsMetrics(testName, "edge"))
return errors.Wrap(err, "edge handshake failure")
})
errGroup.Go(func() (err error) {
p.OriginMux, err = h2mux.Handshake(p.OriginConn, p.OriginConn, p.OriginMuxConfig, h2mux.NewActiveStreamsMetrics(testName, "origin"))
return errors.Wrap(err, "origin handshake failure")
})
return errGroup.Wait()
}
func (p *DefaultMuxerPair) Serve(t assert.TestingT) {
ctx := context.Background()
var wg sync.WaitGroup
wg.Add(2)
go func() {
err := p.EdgeMux.Serve(ctx)
if err != nil && err != io.EOF && err != io.ErrClosedPipe {
t.Errorf("error in edge muxer Serve(): %s", err)
}
p.OriginMux.Shutdown()
wg.Done()
}()
go func() {
err := p.OriginMux.Serve(ctx)
if err != nil && err != io.EOF && err != io.ErrClosedPipe {
t.Errorf("error in origin muxer Serve(): %s", err)
}
p.EdgeMux.Shutdown()
wg.Done()
}()
go func() {
// notify when both muxes have stopped serving
wg.Wait()
close(p.doneC)
}()
}
type mockHTTPHandler struct {
message []byte
}
func (mth *mockHTTPHandler) ServeHTTP(w http.ResponseWriter, _ *http.Request) {
_, _ = w.Write(mth.message)
}

205
supervisor/supervisor.go
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@ -1,205 +0,0 @@
// Package supervisor is used by declarative tunnels to get/apply new config from the edge.
package supervisor
import (
"context"
"crypto/tls"
"fmt"
"os"
"os/signal"
"sync"
"syscall"
"golang.org/x/sync/errgroup"
"github.com/cloudflare/cloudflared/cmd/cloudflared/updater"
"github.com/cloudflare/cloudflared/connection"
"github.com/cloudflare/cloudflared/edgediscovery"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/cloudflare/cloudflared/logger"
"github.com/cloudflare/cloudflared/streamhandler"
"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
"github.com/prometheus/client_golang/prometheus"
)
type Supervisor struct {
connManager *connection.EdgeManager
streamHandler *streamhandler.StreamHandler
autoupdater *updater.AutoUpdater
supportAutoupdate bool
newConfigChan <-chan *pogs.ClientConfig
useConfigResultChan chan<- *pogs.UseConfigurationResult
state *state
logger logger.Service
metrics metrics
}
type metrics struct {
configVersion prometheus.Gauge
}
func newMetrics() metrics {
configVersion := prometheus.NewGauge(prometheus.GaugeOpts{
Namespace: "supervisor",
Subsystem: "supervisor",
Name: "config_version",
Help: "Latest configuration version received from Cloudflare",
},
)
prometheus.MustRegister(
configVersion,
)
return metrics{
configVersion: configVersion,
}
}
func NewSupervisor(
defaultClientConfig *pogs.ClientConfig,
userCredential []byte,
tlsConfig *tls.Config,
serviceDiscoverer *edgediscovery.Edge,
cloudflaredConfig *connection.CloudflaredConfig,
autoupdater *updater.AutoUpdater,
supportAutoupdate bool,
logger logger.Service,
) (*Supervisor, error) {
newConfigChan := make(chan *pogs.ClientConfig)
useConfigResultChan := make(chan *pogs.UseConfigurationResult)
streamHandler := streamhandler.NewStreamHandler(newConfigChan, useConfigResultChan, logger)
invalidConfigs := streamHandler.UpdateConfig(defaultClientConfig.ReverseProxyConfigs)
if len(invalidConfigs) > 0 {
for _, invalidConfig := range invalidConfigs {
logger.Errorf("Tunnel %+v is invalid, reason: %s", invalidConfig.Config, invalidConfig.Reason)
}
return nil, fmt.Errorf("At least 1 Tunnel config is invalid")
}
tunnelHostnames := make([]h2mux.TunnelHostname, len(defaultClientConfig.ReverseProxyConfigs))
for i, reverseProxyConfig := range defaultClientConfig.ReverseProxyConfigs {
tunnelHostnames[i] = reverseProxyConfig.TunnelHostname
}
defaultEdgeMgrConfigurable := &connection.EdgeManagerConfigurable{
TunnelHostnames: tunnelHostnames,
EdgeConnectionConfig: defaultClientConfig.EdgeConnectionConfig,
}
return &Supervisor{
connManager: connection.NewEdgeManager(streamHandler, defaultEdgeMgrConfigurable, userCredential, tlsConfig,
serviceDiscoverer, cloudflaredConfig, logger),
streamHandler: streamHandler,
autoupdater: autoupdater,
supportAutoupdate: supportAutoupdate,
newConfigChan: newConfigChan,
useConfigResultChan: useConfigResultChan,
state: newState(defaultClientConfig),
logger: logger,
metrics: newMetrics(),
}, nil
}
func (s *Supervisor) Run(ctx context.Context) error {
errGroup, groupCtx := errgroup.WithContext(ctx)
errGroup.Go(func() error {
return s.connManager.Run(groupCtx)
})
errGroup.Go(func() error {
return s.listenToNewConfig(groupCtx)
})
errGroup.Go(func() error {
return s.listenToShutdownSignal(groupCtx)
})
if s.supportAutoupdate {
errGroup.Go(func() error {
return s.autoupdater.Run(groupCtx)
})
}
err := errGroup.Wait()
s.logger.Errorf("Supervisor terminated, reason: %v", err)
return err
}
func (s *Supervisor) listenToShutdownSignal(serveCtx context.Context) error {
signals := make(chan os.Signal, 10)
signal.Notify(signals, syscall.SIGTERM, syscall.SIGINT)
defer signal.Stop(signals)
select {
case <-serveCtx.Done():
return serveCtx.Err()
case sig := <-signals:
return fmt.Errorf("received %v signal", sig)
}
}
func (s *Supervisor) listenToNewConfig(ctx context.Context) error {
for {
select {
case <-ctx.Done():
return ctx.Err()
case newConfig := <-s.newConfigChan:
s.useConfigResultChan <- s.notifySubsystemsNewConfig(newConfig)
}
}
}
func (s *Supervisor) notifySubsystemsNewConfig(newConfig *pogs.ClientConfig) *pogs.UseConfigurationResult {
s.logger.Infof("Received configuration %v", newConfig.Version)
if s.state.hasAppliedVersion(newConfig.Version) {
s.logger.Infof("%v has been applied", newConfig.Version)
return &pogs.UseConfigurationResult{
Success: true,
}
}
s.metrics.configVersion.Set(float64(newConfig.Version))
s.state.updateConfig(newConfig)
var tunnelHostnames []h2mux.TunnelHostname
for _, tunnelConfig := range newConfig.ReverseProxyConfigs {
tunnelHostnames = append(tunnelHostnames, tunnelConfig.TunnelHostname)
}
// Update connManager configurable
s.connManager.UpdateConfigurable(&connection.EdgeManagerConfigurable{
TunnelHostnames: tunnelHostnames,
EdgeConnectionConfig: newConfig.EdgeConnectionConfig,
})
// Update streamHandler tunnelHostnameMapper mapping
failedConfigs := s.streamHandler.UpdateConfig(newConfig.ReverseProxyConfigs)
if s.supportAutoupdate {
s.autoupdater.Update(newConfig.SupervisorConfig.AutoUpdateFrequency)
}
return &pogs.UseConfigurationResult{
Success: len(failedConfigs) == 0,
FailedConfigs: failedConfigs,
}
}
type state struct {
sync.RWMutex
currentConfig *pogs.ClientConfig
}
func newState(currentConfig *pogs.ClientConfig) *state {
return &state{
currentConfig: currentConfig,
}
}
func (s *state) hasAppliedVersion(incomingVersion pogs.Version) bool {
s.RLock()
defer s.RUnlock()
return s.currentConfig.Version.IsNewerOrEqual(incomingVersion)
}
func (s *state) updateConfig(newConfig *pogs.ClientConfig) {
s.Lock()
defer s.Unlock()
s.currentConfig = newConfig
}

93
tunnelhostnamemapper/tunnelhostnamemapper.go
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@ -1,93 +0,0 @@
package tunnelhostnamemapper
import (
"sync"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/cloudflare/cloudflared/originservice"
"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
)
// TunnelHostnameMapper maps TunnelHostname to an OriginService
type TunnelHostnameMapper struct {
sync.RWMutex
tunnelHostnameToOrigin map[h2mux.TunnelHostname]originservice.OriginService
}
func NewTunnelHostnameMapper() *TunnelHostnameMapper {
return &TunnelHostnameMapper{
tunnelHostnameToOrigin: make(map[h2mux.TunnelHostname]originservice.OriginService),
}
}
// Get an OriginService given a TunnelHostname
func (om *TunnelHostnameMapper) Get(key h2mux.TunnelHostname) (originservice.OriginService, bool) {
om.RLock()
defer om.RUnlock()
originService, ok := om.tunnelHostnameToOrigin[key]
return originService, ok
}
// Add a mapping. If there is already an OriginService with this key, shutdown the old origin service and replace it
// with the new one
func (om *TunnelHostnameMapper) Add(key h2mux.TunnelHostname, os originservice.OriginService) {
om.Lock()
defer om.Unlock()
if oldOS, ok := om.tunnelHostnameToOrigin[key]; ok {
oldOS.Shutdown()
}
om.tunnelHostnameToOrigin[key] = os
}
// Delete a mapping, and shutdown its OriginService
func (om *TunnelHostnameMapper) Delete(key h2mux.TunnelHostname) (keyFound bool) {
om.Lock()
defer om.Unlock()
if os, ok := om.tunnelHostnameToOrigin[key]; ok {
os.Shutdown()
delete(om.tunnelHostnameToOrigin, key)
return true
}
return false
}
// ToRemove finds all keys that should be removed from the TunnelHostnameMapper.
func (om *TunnelHostnameMapper) ToRemove(newConfigs []*pogs.ReverseProxyConfig) (toRemove []h2mux.TunnelHostname) {
om.Lock()
defer om.Unlock()
// Convert into a set, for O(1) lookups instead of O(n)
newConfigSet := toSet(newConfigs)
// If a config in `om` isn't in `newConfigs`, it must be removed.
for hostname := range om.tunnelHostnameToOrigin {
if _, ok := newConfigSet[hostname]; !ok {
toRemove = append(toRemove, hostname)
}
}
return
}
// ToAdd filters the given configs, keeping those that should be added to the TunnelHostnameMapper.
func (om *TunnelHostnameMapper) ToAdd(newConfigs []*pogs.ReverseProxyConfig) (toAdd []*pogs.ReverseProxyConfig) {
om.Lock()
defer om.Unlock()
// If a config in `newConfigs` isn't in `om`, it must be added.
for _, config := range newConfigs {
if _, ok := om.tunnelHostnameToOrigin[config.TunnelHostname]; !ok {
toAdd = append(toAdd, config)
}
}
return
}
func toSet(configs []*pogs.ReverseProxyConfig) map[h2mux.TunnelHostname]*pogs.ReverseProxyConfig {
m := make(map[h2mux.TunnelHostname]*pogs.ReverseProxyConfig)
for _, config := range configs {
m[config.TunnelHostname] = config
}
return m
}

212
tunnelhostnamemapper/tunnelhostnamemapper_test.go
View File

@ -1,212 +0,0 @@
package tunnelhostnamemapper
import (
"fmt"
"net/http"
"net/url"
"reflect"
"sync"
"testing"
"time"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/cloudflare/cloudflared/originservice"
"github.com/cloudflare/cloudflared/tunnelrpc/pogs"
"github.com/stretchr/testify/assert"
)
const (
routines = 1000
)
func TestTunnelHostnameMapperConcurrentAccess(t *testing.T) {
thm := NewTunnelHostnameMapper()
concurrentOps(t, func(i int) {
// om is empty
os, ok := thm.Get(tunnelHostname(i))
assert.False(t, ok)
assert.Nil(t, os)
})
firstURL, err := url.Parse("https://127.0.0.1:8080")
assert.NoError(t, err)
httpOS := originservice.NewHTTPService(http.DefaultTransport, firstURL, false)
concurrentOps(t, func(i int) {
thm.Add(tunnelHostname(i), httpOS)
})
concurrentOps(t, func(i int) {
os, ok := thm.Get(tunnelHostname(i))
assert.True(t, ok)
assert.Equal(t, httpOS, os)
})
secondURL, err := url.Parse("https://127.0.0.1:8080")
assert.NoError(t, err)
secondHTTPOS := originservice.NewHTTPService(http.DefaultTransport, secondURL, true)
concurrentOps(t, func(i int) {
// Add should httpOS with secondHTTPOS
thm.Add(tunnelHostname(i), secondHTTPOS)
})
concurrentOps(t, func(i int) {
os, ok := thm.Get(tunnelHostname(i))
assert.True(t, ok)
assert.Equal(t, secondHTTPOS, os)
})
}
func concurrentOps(t *testing.T, f func(i int)) {
var wg sync.WaitGroup
wg.Add(routines)
for i := 0; i < routines; i++ {
go func(i int) {
f(i)
wg.Done()
}(i)
}
wg.Wait()
}
func tunnelHostname(i int) h2mux.TunnelHostname {
return h2mux.TunnelHostname(fmt.Sprintf("%d.cftunnel.com", i))
}
func Test_toSet(t *testing.T) {
type args struct {
configs []*pogs.ReverseProxyConfig
}
tests := []struct {
name string
args args
want map[h2mux.TunnelHostname]*pogs.ReverseProxyConfig
}{
{
name: "empty slice should yield empty map",
args: args{},
want: map[h2mux.TunnelHostname]*pogs.ReverseProxyConfig{},
},
{
name: "multiple elements",
args: args{[]*pogs.ReverseProxyConfig{sampleConfig1(), sampleConfig2()}},
want: map[h2mux.TunnelHostname]*pogs.ReverseProxyConfig{
"mock.example.com": sampleConfig1(),
"mock2.example.com": sampleConfig2(),
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := toSet(tt.args.configs); !reflect.DeepEqual(got, tt.want) {
t.Errorf("toSet() = %v, want %v", got, tt.want)
}
})
}
}
func TestTunnelHostnameMapper_ToAdd(t *testing.T) {
type fields struct {
tunnelHostnameToOrigin map[h2mux.TunnelHostname]originservice.OriginService
}
type args struct {
newConfigs []*pogs.ReverseProxyConfig
}
tests := []struct {
name string
fields fields
args args
wantToAdd []*pogs.ReverseProxyConfig
}{
{
name: "Mapper={}, NewConfig={}, toAdd={}",
},
{
name: "Mapper={}, NewConfig={x}, toAdd={x}",
args: args{newConfigs: []*pogs.ReverseProxyConfig{sampleConfig1()}},
wantToAdd: []*pogs.ReverseProxyConfig{sampleConfig1()},
},
{
name: "Mapper={x}, NewConfig={x,y}, toAdd={y}",
args: args{newConfigs: []*pogs.ReverseProxyConfig{sampleConfig2()}},
wantToAdd: []*pogs.ReverseProxyConfig{sampleConfig2()},
fields: fields{tunnelHostnameToOrigin: map[h2mux.TunnelHostname]originservice.OriginService{
h2mux.TunnelHostname(sampleConfig1().TunnelHostname): &originservice.HelloWorldService{},
}},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
om := &TunnelHostnameMapper{
tunnelHostnameToOrigin: tt.fields.tunnelHostnameToOrigin,
}
if gotToAdd := om.ToAdd(tt.args.newConfigs); !reflect.DeepEqual(gotToAdd, tt.wantToAdd) {
t.Errorf("TunnelHostnameMapper.ToAdd() = %v, want %v", gotToAdd, tt.wantToAdd)
}
})
}
}
func TestTunnelHostnameMapper_ToRemove(t *testing.T) {
type fields struct {
tunnelHostnameToOrigin map[h2mux.TunnelHostname]originservice.OriginService
}
type args struct {
newConfigs []*pogs.ReverseProxyConfig
}
tests := []struct {
name string
fields fields
args args
wantToRemove []h2mux.TunnelHostname
}{
{
name: "Mapper={}, NewConfig={}, toRemove={}",
},
{
name: "Mapper={x}, NewConfig={}, toRemove={x}",
wantToRemove: []h2mux.TunnelHostname{sampleConfig1().TunnelHostname},
fields: fields{tunnelHostnameToOrigin: map[h2mux.TunnelHostname]originservice.OriginService{
h2mux.TunnelHostname(sampleConfig1().TunnelHostname): &originservice.HelloWorldService{},
}},
},
{
name: "Mapper={x}, NewConfig={x}, toRemove={}",
args: args{newConfigs: []*pogs.ReverseProxyConfig{sampleConfig1()}},
fields: fields{tunnelHostnameToOrigin: map[h2mux.TunnelHostname]originservice.OriginService{
h2mux.TunnelHostname(sampleConfig1().TunnelHostname): &originservice.HelloWorldService{},
}},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
om := &TunnelHostnameMapper{
tunnelHostnameToOrigin: tt.fields.tunnelHostnameToOrigin,
}
if gotToRemove := om.ToRemove(tt.args.newConfigs); !reflect.DeepEqual(gotToRemove, tt.wantToRemove) {
t.Errorf("TunnelHostnameMapper.ToRemove() = %v, want %v", gotToRemove, tt.wantToRemove)
}
})
}
}
func sampleConfig1() *pogs.ReverseProxyConfig {
return &pogs.ReverseProxyConfig{
TunnelHostname: "mock.example.com",
OriginConfig: &pogs.HelloWorldOriginConfig{},
Retries: 18,
ConnectionTimeout: 5 * time.Second,
CompressionQuality: 3,
}
}
func sampleConfig2() *pogs.ReverseProxyConfig {
return &pogs.ReverseProxyConfig{
TunnelHostname: "mock2.example.com",
OriginConfig: &pogs.HelloWorldOriginConfig{},
Retries: 18,
ConnectionTimeout: 5 * time.Second,
CompressionQuality: 3,
}
}

775
tunnelrpc/pogs/config.go
View File

@ -1,775 +0,0 @@
package pogs
import (
"context"
"crypto/tls"
"crypto/x509"
"fmt"
"net"
"net/http"
"net/url"
"time"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/cloudflare/cloudflared/logger"
"github.com/cloudflare/cloudflared/originservice"
"github.com/cloudflare/cloudflared/tlsconfig"
"github.com/cloudflare/cloudflared/tunnelrpc"
"github.com/pkg/errors"
capnp "zombiezen.com/go/capnproto2"
"zombiezen.com/go/capnproto2/pogs"
"zombiezen.com/go/capnproto2/rpc"
"zombiezen.com/go/capnproto2/server"
)
///
/// Structs
///
// ClientConfig is a collection of FallibleConfig that determines how cloudflared should function
type ClientConfig struct {
Version Version
SupervisorConfig *SupervisorConfig
EdgeConnectionConfig *EdgeConnectionConfig
DoHProxyConfigs []*DoHProxyConfig `capnp:"dohProxyConfigs"`
ReverseProxyConfigs []*ReverseProxyConfig
}
func (c *ClientConfig) MarshalBytes() ([]byte, error) {
msg, firstSeg, err := capnp.NewMessage(capnp.SingleSegment(nil))
if err != nil {
return nil, err
}
capnpEntity, err := tunnelrpc.NewRootClientConfig(firstSeg)
if err != nil {
return nil, err
}
err = MarshalClientConfig(capnpEntity, c)
if err != nil {
return nil, err
}
return msg.Marshal()
}
func UnmarshalClientConfigFromBytes(clientConfigBytes []byte) (*ClientConfig, error) {
msg, err := capnp.Unmarshal(clientConfigBytes)
if err != nil {
return nil, err
}
capnpClientConfig, err := tunnelrpc.ReadRootClientConfig(msg)
if err != nil {
return nil, err
}
pogsClientConfig, err := UnmarshalClientConfig(capnpClientConfig)
if err != nil {
return nil, err
}
return pogsClientConfig, nil
}
// Version type models the version of a ClientConfig
type Version uint64
func InitVersion() Version {
return Version(0)
}
func (v Version) IsNewerOrEqual(comparedVersion Version) bool {
return v >= comparedVersion
}
func (v Version) String() string {
return fmt.Sprintf("Version: %d", v)
}
// FallibleConfig is an interface implemented by configs that cloudflared might not be able to apply
//go-sumtype:decl FallibleConfig
type FallibleConfig interface {
FailReason(err error) string
isFallibleConfig()
}
// SupervisorConfig specifies config of components managed by Supervisor other than ConnectionManager
type SupervisorConfig struct {
AutoUpdateFrequency time.Duration
MetricsUpdateFrequency time.Duration
GracePeriod time.Duration
}
// FailReason impelents FallibleConfig interface for SupervisorConfig
func (sc *SupervisorConfig) FailReason(err error) string {
return fmt.Sprintf("Cannot apply SupervisorConfig, err: %v", err)
}
func (_ *SupervisorConfig) isFallibleConfig() {}
// EdgeConnectionConfig specifies what parameters and how may connections should ConnectionManager establish with edge
type EdgeConnectionConfig struct {
NumHAConnections uint8
HeartbeatInterval time.Duration
Timeout time.Duration
MaxFailedHeartbeats uint64
UserCredentialPath string
}
// FailReason impelents FallibleConfig interface for EdgeConnectionConfig
func (cmc *EdgeConnectionConfig) FailReason(err error) string {
return fmt.Sprintf("Cannot apply EdgeConnectionConfig, err: %v", err)
}
func (_ *EdgeConnectionConfig) isFallibleConfig() {}
// DoHProxyConfig is configuration for DNS over HTTPS service
type DoHProxyConfig struct {
ListenHost string
ListenPort uint16
Upstreams []string
}
// FailReason impelents FallibleConfig interface for DoHProxyConfig
func (dpc *DoHProxyConfig) FailReason(err error) string {
return fmt.Sprintf("Cannot apply DoHProxyConfig, err: %v", err)
}
func (_ *DoHProxyConfig) isFallibleConfig() {}
// ReverseProxyConfig how and for what hostnames can this cloudflared proxy
type ReverseProxyConfig struct {
TunnelHostname h2mux.TunnelHostname
OriginConfig OriginConfig
Retries uint64
ConnectionTimeout time.Duration
CompressionQuality uint64
}
func NewReverseProxyConfig(
tunnelHostname string,
originConfig OriginConfig,
retries uint64,
connectionTimeout time.Duration,
compressionQuality uint64,
) (*ReverseProxyConfig, error) {
if originConfig == nil {
return nil, fmt.Errorf("NewReverseProxyConfig: originConfigUnmarshaler was null")
}
return &ReverseProxyConfig{
TunnelHostname: h2mux.TunnelHostname(tunnelHostname),
OriginConfig: originConfig,
Retries: retries,
ConnectionTimeout: connectionTimeout,
CompressionQuality: compressionQuality,
}, nil
}
// FailReason impelents FallibleConfig interface for ReverseProxyConfig
func (rpc *ReverseProxyConfig) FailReason(err error) string {
return fmt.Sprintf("Cannot apply ReverseProxyConfig, err: %v", err)
}
func (_ *ReverseProxyConfig) isFallibleConfig() {}
//go-sumtype:decl OriginConfig
type OriginConfig interface {
// Service returns a OriginService used to proxy to the origin
Service(logger.Service) (originservice.OriginService, error)
// go-sumtype requires at least one unexported method, otherwise it will complain that interface is not sealed
isOriginConfig()
}
type HTTPOriginConfig struct {
URLString string `capnp:"urlString"`
TCPKeepAlive time.Duration `capnp:"tcpKeepAlive"`
DialDualStack bool
TLSHandshakeTimeout time.Duration `capnp:"tlsHandshakeTimeout"`
TLSVerify bool `capnp:"tlsVerify"`
OriginCAPool string
OriginServerName string
MaxIdleConnections uint64
IdleConnectionTimeout time.Duration
ProxyConnectionTimeout time.Duration
ExpectContinueTimeout time.Duration
ChunkedEncoding bool
}
func (hc *HTTPOriginConfig) Service(logger logger.Service) (originservice.OriginService, error) {
rootCAs, err := tlsconfig.LoadCustomOriginCA(hc.OriginCAPool)
if err != nil {
return nil, err
}
dialer := &net.Dialer{
Timeout: hc.ProxyConnectionTimeout,
KeepAlive: hc.TCPKeepAlive,
}
if !hc.DialDualStack {
dialer.FallbackDelay = -1
}
dialContext := dialer.DialContext
transport := &http.Transport{
Proxy: http.ProxyFromEnvironment,
DialContext: dialContext,
TLSClientConfig: &tls.Config{
RootCAs: rootCAs,
ServerName: hc.OriginServerName,
InsecureSkipVerify: hc.TLSVerify,
},
TLSHandshakeTimeout: hc.TLSHandshakeTimeout,
MaxIdleConns: int(hc.MaxIdleConnections),
IdleConnTimeout: hc.IdleConnectionTimeout,
ExpectContinueTimeout: hc.ExpectContinueTimeout,
}
url, err := url.Parse(hc.URLString)
if err != nil {
return nil, errors.Wrapf(err, "%s is not a valid URL", hc.URLString)
}
if url.Scheme == "unix" {
transport.DialContext = func(ctx context.Context, _, _ string) (net.Conn, error) {
return dialContext(ctx, "unix", url.Host)
}
}
return originservice.NewHTTPService(transport, url, hc.ChunkedEncoding), nil
}
func (*HTTPOriginConfig) isOriginConfig() {}
type WebSocketOriginConfig struct {
URLString string `capnp:"urlString"`
TLSVerify bool `capnp:"tlsVerify"`
OriginCAPool string
OriginServerName string
}
func (wsc *WebSocketOriginConfig) Service(logger logger.Service) (originservice.OriginService, error) {
rootCAs, err := tlsconfig.LoadCustomOriginCA(wsc.OriginCAPool)
if err != nil {
return nil, err
}
tlsConfig := &tls.Config{
RootCAs: rootCAs,
ServerName: wsc.OriginServerName,
InsecureSkipVerify: wsc.TLSVerify,
}
url, err := url.Parse(wsc.URLString)
if err != nil {
return nil, errors.Wrapf(err, "%s is not a valid URL", wsc.URLString)
}
return originservice.NewWebSocketService(tlsConfig, url, logger)
}
func (*WebSocketOriginConfig) isOriginConfig() {}
type HelloWorldOriginConfig struct{}
func (*HelloWorldOriginConfig) Service(logger logger.Service) (originservice.OriginService, error) {
helloCert, err := tlsconfig.GetHelloCertificateX509()
if err != nil {
return nil, errors.Wrap(err, "Cannot get Hello World server certificate")
}
rootCAs := x509.NewCertPool()
rootCAs.AddCert(helloCert)
transport := &http.Transport{
Proxy: http.ProxyFromEnvironment,
DialContext: (&net.Dialer{
Timeout: 30 * time.Second,
KeepAlive: 30 * time.Second,
}).DialContext,
TLSClientConfig: &tls.Config{
RootCAs: rootCAs,
},
MaxIdleConns: 100,
IdleConnTimeout: 90 * time.Second,
TLSHandshakeTimeout: 10 * time.Second,
ExpectContinueTimeout: 1 * time.Second,
}
return originservice.NewHelloWorldService(transport, logger)
}
func (*HelloWorldOriginConfig) isOriginConfig() {}
/*
* Boilerplate to convert between these structs and the primitive structs
* generated by capnp-go.
* Mnemonics for variable names in this section:
* - `p` is for POGS (plain old Go struct)
* - `s` (and `ss`) is for "capnp.Struct", which is the fundamental type
* underlying the capnp-go data structures.
*/
func MarshalClientConfig(s tunnelrpc.ClientConfig, p *ClientConfig) error {
s.SetVersion(uint64(p.Version))
supervisorConfig, err := s.NewSupervisorConfig()
if err != nil {
return errors.Wrap(err, "failed to get SupervisorConfig")
}
if err = MarshalSupervisorConfig(supervisorConfig, p.SupervisorConfig); err != nil {
return errors.Wrap(err, "MarshalSupervisorConfig error")
}
edgeConnectionConfig, err := s.NewEdgeConnectionConfig()
if err != nil {
return errors.Wrap(err, "failed to get EdgeConnectionConfig")
}
if err := MarshalEdgeConnectionConfig(edgeConnectionConfig, p.EdgeConnectionConfig); err != nil {
return errors.Wrap(err, "MarshalEdgeConnectionConfig error")
}
if err := marshalDoHProxyConfigs(s, p.DoHProxyConfigs); err != nil {
return errors.Wrap(err, "marshalDoHProxyConfigs error")
}
if err := marshalReverseProxyConfigs(s, p.ReverseProxyConfigs); err != nil {
return errors.Wrap(err, "marshalReverseProxyConfigs error")
}
return nil
}
func MarshalSupervisorConfig(s tunnelrpc.SupervisorConfig, p *SupervisorConfig) error {
if err := pogs.Insert(tunnelrpc.SupervisorConfig_TypeID, s.Struct, p); err != nil {
return errors.Wrap(err, "failed to insert SupervisorConfig")
}
return nil
}
func MarshalEdgeConnectionConfig(s tunnelrpc.EdgeConnectionConfig, p *EdgeConnectionConfig) error {
if err := pogs.Insert(tunnelrpc.EdgeConnectionConfig_TypeID, s.Struct, p); err != nil {
return errors.Wrap(err, "failed to insert EdgeConnectionConfig")
}
return nil
}
func marshalDoHProxyConfigs(s tunnelrpc.ClientConfig, dohProxyConfigs []*DoHProxyConfig) error {
capnpList, err := s.NewDohProxyConfigs(int32(len(dohProxyConfigs)))
if err != nil {
return err
}
for i, unmarshalledConfig := range dohProxyConfigs {
err := MarshalDoHProxyConfig(capnpList.At(i), unmarshalledConfig)
if err != nil {
return err
}
}
return nil
}
func marshalReverseProxyConfigs(s tunnelrpc.ClientConfig, reverseProxyConfigs []*ReverseProxyConfig) error {
capnpList, err := s.NewReverseProxyConfigs(int32(len(reverseProxyConfigs)))
if err != nil {
return err
}
for i, unmarshalledConfig := range reverseProxyConfigs {
err := MarshalReverseProxyConfig(capnpList.At(i), unmarshalledConfig)
if err != nil {
return err
}
}
return nil
}
func UnmarshalClientConfig(s tunnelrpc.ClientConfig) (*ClientConfig, error) {
p := new(ClientConfig)
p.Version = Version(s.Version())
supervisorConfig, err := s.SupervisorConfig()
if err != nil {
return nil, errors.Wrap(err, "failed to get SupervisorConfig")
}
p.SupervisorConfig, err = UnmarshalSupervisorConfig(supervisorConfig)
if err != nil {
return nil, errors.Wrap(err, "UnmarshalSupervisorConfig error")
}
edgeConnectionConfig, err := s.EdgeConnectionConfig()
if err != nil {
return nil, errors.Wrap(err, "failed to get ConnectionManagerConfig")
}
p.EdgeConnectionConfig, err = UnmarshalEdgeConnectionConfig(edgeConnectionConfig)
if err != nil {
return nil, errors.Wrap(err, "UnmarshalConnectionManagerConfig error")
}
p.DoHProxyConfigs, err = unmarshalDoHProxyConfigs(s)
if err != nil {
return nil, errors.Wrap(err, "unmarshalDoHProxyConfigs error")
}
p.ReverseProxyConfigs, err = unmarshalReverseProxyConfigs(s)
if err != nil {
return nil, errors.Wrap(err, "unmarshalReverseProxyConfigs error")
}
return p, nil
}
func UnmarshalSupervisorConfig(s tunnelrpc.SupervisorConfig) (*SupervisorConfig, error) {
p := new(SupervisorConfig)
err := pogs.Extract(p, tunnelrpc.SupervisorConfig_TypeID, s.Struct)
return p, err
}
func UnmarshalEdgeConnectionConfig(s tunnelrpc.EdgeConnectionConfig) (*EdgeConnectionConfig, error) {
p := new(EdgeConnectionConfig)
err := pogs.Extract(p, tunnelrpc.EdgeConnectionConfig_TypeID, s.Struct)
return p, err
}
func unmarshalDoHProxyConfigs(s tunnelrpc.ClientConfig) ([]*DoHProxyConfig, error) {
var result []*DoHProxyConfig
marshalledDoHProxyConfigs, err := s.DohProxyConfigs()
if err != nil {
return nil, err
}
for i := 0; i < marshalledDoHProxyConfigs.Len(); i++ {
ss := marshalledDoHProxyConfigs.At(i)
dohProxyConfig, err := UnmarshalDoHProxyConfig(ss)
if err != nil {
return nil, err
}
result = append(result, dohProxyConfig)
}
return result, nil
}
func unmarshalReverseProxyConfigs(s tunnelrpc.ClientConfig) ([]*ReverseProxyConfig, error) {
var result []*ReverseProxyConfig
marshalledReverseProxyConfigs, err := s.ReverseProxyConfigs()
if err != nil {
return nil, err
}
for i := 0; i < marshalledReverseProxyConfigs.Len(); i++ {
ss := marshalledReverseProxyConfigs.At(i)
reverseProxyConfig, err := UnmarshalReverseProxyConfig(ss)
if err != nil {
return nil, err
}
result = append(result, reverseProxyConfig)
}
return result, nil
}
func MarshalUseConfigurationResult(s tunnelrpc.UseConfigurationResult, p *UseConfigurationResult) error {
capnpList, err := s.NewFailedConfigs(int32(len(p.FailedConfigs)))
if err != nil {
return errors.Wrap(err, "Cannot create new FailedConfigs")
}
for i, unmarshalledFailedConfig := range p.FailedConfigs {
err := MarshalFailedConfig(capnpList.At(i), unmarshalledFailedConfig)
if err != nil {
return errors.Wrapf(err, "Cannot MarshalFailedConfig at index %d", i)
}
}
s.SetSuccess(p.Success)
return nil
}
func UnmarshalUseConfigurationResult(s tunnelrpc.UseConfigurationResult) (*UseConfigurationResult, error) {
p := new(UseConfigurationResult)
var failedConfigs []*FailedConfig
marshalledFailedConfigs, err := s.FailedConfigs()
if err != nil {
return nil, errors.Wrap(err, "Cannot get FailedConfigs")
}
for i := 0; i < marshalledFailedConfigs.Len(); i++ {
ss := marshalledFailedConfigs.At(i)
failedConfig, err := UnmarshalFailedConfig(ss)
if err != nil {
return nil, errors.Wrapf(err, "Cannot UnmarshalFailedConfig at index %d", i)
}
failedConfigs = append(failedConfigs, failedConfig)
}
p.FailedConfigs = failedConfigs
p.Success = s.Success()
return p, nil
}
func MarshalDoHProxyConfig(s tunnelrpc.DoHProxyConfig, p *DoHProxyConfig) error {
return pogs.Insert(tunnelrpc.DoHProxyConfig_TypeID, s.Struct, p)
}
func UnmarshalDoHProxyConfig(s tunnelrpc.DoHProxyConfig) (*DoHProxyConfig, error) {
p := new(DoHProxyConfig)
err := pogs.Extract(p, tunnelrpc.DoHProxyConfig_TypeID, s.Struct)
return p, err
}
func MarshalReverseProxyConfig(s tunnelrpc.ReverseProxyConfig, p *ReverseProxyConfig) error {
s.SetTunnelHostname(p.TunnelHostname.String())
switch config := p.OriginConfig.(type) {
case *HTTPOriginConfig:
ss, err := s.OriginConfig().NewHttp()
if err != nil {
return err
}
if err := MarshalHTTPOriginConfig(ss, config); err != nil {
return err
}
case *WebSocketOriginConfig:
ss, err := s.OriginConfig().NewWebsocket()
if err != nil {
return err
}
if err := MarshalWebSocketOriginConfig(ss, config); err != nil {
return err
}
case *HelloWorldOriginConfig:
ss, err := s.OriginConfig().NewHelloWorld()
if err != nil {
return err
}
if err := MarshalHelloWorldOriginConfig(ss, config); err != nil {
return err
}
default:
return fmt.Errorf("Unknown type for config: %T", config)
}
s.SetRetries(p.Retries)
s.SetConnectionTimeout(p.ConnectionTimeout.Nanoseconds())
s.SetCompressionQuality(p.CompressionQuality)
return nil
}
func UnmarshalReverseProxyConfig(s tunnelrpc.ReverseProxyConfig) (*ReverseProxyConfig, error) {
p := new(ReverseProxyConfig)
tunnelHostname, err := s.TunnelHostname()
if err != nil {
return nil, err
}
p.TunnelHostname = h2mux.TunnelHostname(tunnelHostname)
switch s.OriginConfig().Which() {
case tunnelrpc.ReverseProxyConfig_originConfig_Which_http:
ss, err := s.OriginConfig().Http()
if err != nil {
return nil, err
}
config, err := UnmarshalHTTPOriginConfig(ss)
if err != nil {
return nil, err
}
p.OriginConfig = config
case tunnelrpc.ReverseProxyConfig_originConfig_Which_websocket:
ss, err := s.OriginConfig().Websocket()
if err != nil {
return nil, err
}
config, err := UnmarshalWebSocketOriginConfig(ss)
if err != nil {
return nil, err
}
p.OriginConfig = config
case tunnelrpc.ReverseProxyConfig_originConfig_Which_helloWorld:
ss, err := s.OriginConfig().HelloWorld()
if err != nil {
return nil, err
}
config, err := UnmarshalHelloWorldOriginConfig(ss)
if err != nil {
return nil, err
}
p.OriginConfig = config
}
p.Retries = s.Retries()
p.ConnectionTimeout = time.Duration(s.ConnectionTimeout())
p.CompressionQuality = s.CompressionQuality()
return p, nil
}
func MarshalHTTPOriginConfig(s tunnelrpc.HTTPOriginConfig, p *HTTPOriginConfig) error {
return pogs.Insert(tunnelrpc.HTTPOriginConfig_TypeID, s.Struct, p)
}
func UnmarshalHTTPOriginConfig(s tunnelrpc.HTTPOriginConfig) (*HTTPOriginConfig, error) {
p := new(HTTPOriginConfig)
err := pogs.Extract(p, tunnelrpc.HTTPOriginConfig_TypeID, s.Struct)
return p, err
}
func MarshalWebSocketOriginConfig(s tunnelrpc.WebSocketOriginConfig, p *WebSocketOriginConfig) error {
return pogs.Insert(tunnelrpc.WebSocketOriginConfig_TypeID, s.Struct, p)
}
func UnmarshalWebSocketOriginConfig(s tunnelrpc.WebSocketOriginConfig) (*WebSocketOriginConfig, error) {
p := new(WebSocketOriginConfig)
err := pogs.Extract(p, tunnelrpc.WebSocketOriginConfig_TypeID, s.Struct)
return p, err
}
func MarshalHelloWorldOriginConfig(s tunnelrpc.HelloWorldOriginConfig, p *HelloWorldOriginConfig) error {
return pogs.Insert(tunnelrpc.HelloWorldOriginConfig_TypeID, s.Struct, p)
}
func UnmarshalHelloWorldOriginConfig(s tunnelrpc.HelloWorldOriginConfig) (*HelloWorldOriginConfig, error) {
p := new(HelloWorldOriginConfig)
err := pogs.Extract(p, tunnelrpc.HelloWorldOriginConfig_TypeID, s.Struct)
return p, err
}
type ClientService interface {
UseConfiguration(ctx context.Context, config *ClientConfig) (*UseConfigurationResult, error)
}
type ClientService_PogsClient struct {
Client capnp.Client
Conn *rpc.Conn
}
func (c *ClientService_PogsClient) Close() error {
return c.Conn.Close()
}
func (c *ClientService_PogsClient) UseConfiguration(
ctx context.Context,
config *ClientConfig,
) (*UseConfigurationResult, error) {
client := tunnelrpc.ClientService{Client: c.Client}
promise := client.UseConfiguration(ctx, func(p tunnelrpc.ClientService_useConfiguration_Params) error {
clientServiceConfig, err := p.NewClientServiceConfig()
if err != nil {
return err
}
return MarshalClientConfig(clientServiceConfig, config)
})
retval, err := promise.Result().Struct()
if err != nil {
return nil, err
}
return UnmarshalUseConfigurationResult(retval)
}
func ClientService_ServerToClient(s ClientService) tunnelrpc.ClientService {
return tunnelrpc.ClientService_ServerToClient(ClientService_PogsImpl{s})
}
type ClientService_PogsImpl struct {
impl ClientService
}
func (i ClientService_PogsImpl) UseConfiguration(p tunnelrpc.ClientService_useConfiguration) error {
config, err := p.Params.ClientServiceConfig()
if err != nil {
return errors.Wrap(err, "Cannot get CloudflaredConfig parameter")
}
pogsConfig, err := UnmarshalClientConfig(config)
if err != nil {
return errors.Wrap(err, "Cannot unmarshal tunnelrpc.CloudflaredConfig to *CloudflaredConfig")
}
server.Ack(p.Options)
userConfigResult, err := i.impl.UseConfiguration(p.Ctx, pogsConfig)
if err != nil {
return err
}
result, err := p.Results.NewResult()
if err != nil {
return err
}
return MarshalUseConfigurationResult(result, userConfigResult)
}
type UseConfigurationResult struct {
Success bool
FailedConfigs []*FailedConfig
}
type FailedConfig struct {
Config FallibleConfig
Reason string
}
func MarshalFailedConfig(s tunnelrpc.FailedConfig, p *FailedConfig) error {
switch config := p.Config.(type) {
case *SupervisorConfig:
ss, err := s.Config().NewSupervisor()
if err != nil {
return err
}
err = MarshalSupervisorConfig(ss, config)
if err != nil {
return err
}
case *EdgeConnectionConfig:
ss, err := s.Config().NewEdgeConnection()
if err != nil {
return err
}
err = MarshalEdgeConnectionConfig(ss, config)
if err != nil {
return err
}
case *DoHProxyConfig:
ss, err := s.Config().NewDoh()
if err != nil {
return err
}
err = MarshalDoHProxyConfig(ss, config)
if err != nil {
return err
}
case *ReverseProxyConfig:
ss, err := s.Config().NewReverseProxy()
if err != nil {
return err
}
err = MarshalReverseProxyConfig(ss, config)
if err != nil {
return err
}
default:
return fmt.Errorf("Unknown type for Config: %T", config)
}
s.SetReason(p.Reason)
return nil
}
func UnmarshalFailedConfig(s tunnelrpc.FailedConfig) (*FailedConfig, error) {
p := new(FailedConfig)
switch s.Config().Which() {
case tunnelrpc.FailedConfig_config_Which_supervisor:
ss, err := s.Config().Supervisor()
if err != nil {
return nil, errors.Wrap(err, "Cannot get SupervisorConfig from Config")
}
config, err := UnmarshalSupervisorConfig(ss)
if err != nil {
return nil, errors.Wrap(err, "Cannot UnmarshalSupervisorConfig")
}
p.Config = config
case tunnelrpc.FailedConfig_config_Which_edgeConnection:
ss, err := s.Config().EdgeConnection()
if err != nil {
return nil, errors.Wrap(err, "Cannot get ConnectionManager from Config")
}
config, err := UnmarshalEdgeConnectionConfig(ss)
if err != nil {
return nil, errors.Wrap(err, "Cannot UnmarshalConnectionManagerConfig")
}
p.Config = config
case tunnelrpc.FailedConfig_config_Which_doh:
ss, err := s.Config().Doh()
if err != nil {
return nil, errors.Wrap(err, "Cannot get Doh from Config")
}
config, err := UnmarshalDoHProxyConfig(ss)
if err != nil {
return nil, errors.Wrap(err, "Cannot UnmarshalDoHProxyConfig")
}
p.Config = config
case tunnelrpc.FailedConfig_config_Which_reverseProxy:
ss, err := s.Config().ReverseProxy()
if err != nil {
return nil, errors.Wrap(err, "Cannot get ReverseProxy from Config")
}
config, err := UnmarshalReverseProxyConfig(ss)
if err != nil {
return nil, errors.Wrap(err, "Cannot UnmarshalReverseProxyConfig")
}
p.Config = config
default:
return nil, fmt.Errorf("Unknown type for FailedConfig: %v", s.Config().Which())
}
reason, err := s.Reason()
if err != nil {
return nil, errors.Wrap(err, "Cannot get Reason")
}
p.Reason = reason
return p, nil
}

455
tunnelrpc/pogs/config_test.go
View File

@ -1,455 +0,0 @@
package pogs
import (
"fmt"
"reflect"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/cloudflare/cloudflared/logger"
"github.com/cloudflare/cloudflared/tunnelrpc"
capnp "zombiezen.com/go/capnproto2"
)
// Assert *HTTPOriginConfig implements OriginConfig
var _ OriginConfig = (*HTTPOriginConfig)(nil)
// Assert *WebSocketOriginConfig implements OriginConfig
var _ OriginConfig = (*WebSocketOriginConfig)(nil)
// Assert *HelloWorldOriginConfig implements OriginConfig
var _ OriginConfig = (*HelloWorldOriginConfig)(nil)
func TestVersion(t *testing.T) {
firstVersion := InitVersion()
secondVersion := Version(1)
assert.False(t, firstVersion.IsNewerOrEqual(secondVersion))
assert.True(t, secondVersion.IsNewerOrEqual(firstVersion))
assert.True(t, secondVersion.IsNewerOrEqual(secondVersion))
}
func TestClientConfigCapnp(t *testing.T) {
for i, testCase := range ClientConfigTestCases() {
_, seg, err := capnp.NewMessage(capnp.SingleSegment(nil))
capnpEntity, err := tunnelrpc.NewClientConfig(seg)
if !assert.NoError(t, err) {
t.Fatal("Couldn't initialize a new message")
}
err = MarshalClientConfig(capnpEntity, testCase)
if !assert.NoError(t, err, "testCase index %v failed to marshal", i) {
continue
}
result, err := UnmarshalClientConfig(capnpEntity)
if !assert.NoError(t, err, "testCase index %v failed to unmarshal", i) {
continue
}
assert.Equal(t, testCase, result, "testCase index %v didn't preserve struct through marshalling and unmarshalling", i)
}
}
func ClientConfigTestCases() []*ClientConfig {
addDoHProxyConfigs := func(c *ClientConfig) {
c.DoHProxyConfigs = []*DoHProxyConfig{
sampleDoHProxyConfig(),
}
}
addReverseProxyConfigs := func(c *ClientConfig) {
c.ReverseProxyConfigs = []*ReverseProxyConfig{
sampleReverseProxyConfig(),
sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
}),
sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
c.OriginConfig = sampleHTTPOriginConfig()
}),
sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
c.OriginConfig = sampleHTTPOriginConfigUnixPath()
}),
sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
c.OriginConfig = sampleWebSocketOriginConfig()
}),
}
}
testCases := []*ClientConfig{
sampleClientConfig(),
sampleClientConfig(addDoHProxyConfigs),
sampleClientConfig(addReverseProxyConfigs),
sampleClientConfig(addDoHProxyConfigs, addReverseProxyConfigs),
}
return testCases
}
func TestClientConfig(t *testing.T) {
for _, testCase := range ClientConfigTestCases() {
b, err := testCase.MarshalBytes()
assert.NoError(t, err)
clientConfig, err := UnmarshalClientConfigFromBytes(b)
assert.NoError(t, err)
assert.Equal(t, testCase, clientConfig)
}
}
func TestUseConfigurationResult(t *testing.T) {
testCases := []*UseConfigurationResult{
&UseConfigurationResult{
Success: true,
},
&UseConfigurationResult{
Success: false,
FailedConfigs: []*FailedConfig{
{
Config: sampleReverseProxyConfig(),
Reason: "Invalid certificate",
},
{
Config: sampleDoHProxyConfig(),
Reason: "Cannot listen on port 53",
},
},
},
}
for i, testCase := range testCases {
_, seg, err := capnp.NewMessage(capnp.SingleSegment(nil))
capnpEntity, err := tunnelrpc.NewUseConfigurationResult(seg)
if !assert.NoError(t, err) {
t.Fatal("Couldn't initialize a new message")
}
err = MarshalUseConfigurationResult(capnpEntity, testCase)
if !assert.NoError(t, err, "testCase index %v failed to marshal", i) {
continue
}
result, err := UnmarshalUseConfigurationResult(capnpEntity)
if !assert.NoError(t, err, "testCase index %v failed to unmarshal", i) {
continue
}
assert.Equal(t, testCase, result, "testCase index %v didn't preserve struct through marshalling and unmarshalling", i)
}
}
func TestDoHProxyConfig(t *testing.T) {
testCases := []*DoHProxyConfig{
sampleDoHProxyConfig(),
sampleDoHProxyConfig(func(c *DoHProxyConfig) {
c.Upstreams = nil
}),
}
for i, testCase := range testCases {
_, seg, err := capnp.NewMessage(capnp.SingleSegment(nil))
capnpEntity, err := tunnelrpc.NewDoHProxyConfig(seg)
if !assert.NoError(t, err) {
t.Fatal("Couldn't initialize a new message")
}
err = MarshalDoHProxyConfig(capnpEntity, testCase)
if !assert.NoError(t, err, "testCase index %v failed to marshal", i) {
continue
}
result, err := UnmarshalDoHProxyConfig(capnpEntity)
if !assert.NoError(t, err, "testCase index %v failed to unmarshal", i) {
continue
}
assert.Equal(t, testCase, result, "testCase index %v didn't preserve struct through marshalling and unmarshalling", i)
}
}
func TestReverseProxyConfig(t *testing.T) {
testCases := []*ReverseProxyConfig{
sampleReverseProxyConfig(),
sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
c.OriginConfig = sampleHTTPOriginConfig()
}),
sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
c.OriginConfig = sampleHTTPOriginConfigUnixPath()
}),
sampleReverseProxyConfig(func(c *ReverseProxyConfig) {
c.OriginConfig = sampleWebSocketOriginConfig()
}),
}
for i, testCase := range testCases {
_, seg, err := capnp.NewMessage(capnp.SingleSegment(nil))
capnpEntity, err := tunnelrpc.NewReverseProxyConfig(seg)
if !assert.NoError(t, err) {
t.Fatal("Couldn't initialize a new message")
}
err = MarshalReverseProxyConfig(capnpEntity, testCase)
if !assert.NoError(t, err, "testCase index %v failed to marshal", i) {
continue
}
result, err := UnmarshalReverseProxyConfig(capnpEntity)
if !assert.NoError(t, err, "testCase index %v failed to unmarshal", i) {
continue
}
assert.Equal(t, testCase, result, "testCase index %v didn't preserve struct through marshalling and unmarshalling", i)
}
}
func TestHTTPOriginConfig(t *testing.T) {
testCases := []*HTTPOriginConfig{
sampleHTTPOriginConfig(),
}
for i, testCase := range testCases {
_, seg, err := capnp.NewMessage(capnp.SingleSegment(nil))
capnpEntity, err := tunnelrpc.NewHTTPOriginConfig(seg)
if !assert.NoError(t, err) {
t.Fatal("Couldn't initialize a new message")
}
err = MarshalHTTPOriginConfig(capnpEntity, testCase)
if !assert.NoError(t, err, "testCase index %v failed to marshal", i) {
continue
}
result, err := UnmarshalHTTPOriginConfig(capnpEntity)
if !assert.NoError(t, err, "testCase index %v failed to unmarshal", i) {
continue
}
assert.Equal(t, testCase, result, "testCase index %v didn't preserve struct through marshalling and unmarshalling", i)
}
}
func TestWebSocketOriginConfig(t *testing.T) {
testCases := []*WebSocketOriginConfig{
sampleWebSocketOriginConfig(),
}
for i, testCase := range testCases {
_, seg, err := capnp.NewMessage(capnp.SingleSegment(nil))
capnpEntity, err := tunnelrpc.NewWebSocketOriginConfig(seg)
if !assert.NoError(t, err) {
t.Fatal("Couldn't initialize a new message")
}
err = MarshalWebSocketOriginConfig(capnpEntity, testCase)
if !assert.NoError(t, err, "testCase index %v failed to marshal", i) {
continue
}
result, err := UnmarshalWebSocketOriginConfig(capnpEntity)
if !assert.NoError(t, err, "testCase index %v failed to unmarshal", i) {
continue
}
assert.Equal(t, testCase, result, "testCase index %v didn't preserve struct through marshalling and unmarshalling", i)
}
}
func TestOriginConfigInvalidURL(t *testing.T) {
invalidConfigs := []OriginConfig{
&HTTPOriginConfig{
// this url doesn't have a scheme
URLString: "127.0.0.1:36192",
},
&WebSocketOriginConfig{
URLString: "127.0.0.1:36192",
},
}
logger := logger.NewOutputWriter(logger.NewMockWriteManager())
for _, config := range invalidConfigs {
service, err := config.Service(logger)
assert.Error(t, err)
assert.Nil(t, service)
}
}
//////////////////////////////////////////////////////////////////////////////
// Functions to generate sample data for ease of testing
//
// There's one "sample" function per struct type. Each goes like this:
// 1. Initialize an instance of the relevant struct.
// 2. Ensure the instance has no zero-valued fields. (This catches the
// error-case where a field was added, but we forgot to add code to
// marshal/unmarshal this field in CapnProto.)
// 3. Apply one or more "override" functions (which accept a
// pointer-to-struct, so they can mutate the instance).
// sampleClientConfig initializes a new ClientConfig literal,
// applies any number of overrides to it, and returns it.
func sampleClientConfig(overrides ...func(*ClientConfig)) *ClientConfig {
sample := &ClientConfig{
Version: Version(1337),
SupervisorConfig: sampleSupervisorConfig(),
EdgeConnectionConfig: sampleEdgeConnectionConfig(),
}
sample.ensureNoZeroFields()
for _, f := range overrides {
f(sample)
}
return sample
}
func sampleSupervisorConfig() *SupervisorConfig {
sample := &SupervisorConfig{
AutoUpdateFrequency: 21 * time.Hour,
MetricsUpdateFrequency: 11 * time.Minute,
GracePeriod: 31 * time.Second,
}
sample.ensureNoZeroFields()
return sample
}
func sampleEdgeConnectionConfig() *EdgeConnectionConfig {
sample := &EdgeConnectionConfig{
NumHAConnections: 49,
HeartbeatInterval: 5 * time.Second,
Timeout: 9 * time.Second,
MaxFailedHeartbeats: 9001,
UserCredentialPath: "/Users/example/.cloudflared/cert.pem",
}
sample.ensureNoZeroFields()
return sample
}
// sampleDoHProxyConfig initializes a new DoHProxyConfig struct,
// applies any number of overrides to it, and returns it.
func sampleDoHProxyConfig(overrides ...func(*DoHProxyConfig)) *DoHProxyConfig {
sample := &DoHProxyConfig{
ListenHost: "127.0.0.1",
ListenPort: 53,
Upstreams: []string{"1.1.1.1", "1.0.0.1"},
}
sample.ensureNoZeroFields()
for _, f := range overrides {
f(sample)
}
return sample
}
// sampleReverseProxyConfig initializes a new ReverseProxyConfig struct,
// applies any number of overrides to it, and returns it.
func sampleReverseProxyConfig(overrides ...func(*ReverseProxyConfig)) *ReverseProxyConfig {
sample := &ReverseProxyConfig{
TunnelHostname: "mock-non-lb-tunnel.example.com",
OriginConfig: &HelloWorldOriginConfig{},
Retries: 18,
ConnectionTimeout: 5 * time.Second,
CompressionQuality: 3,
}
sample.ensureNoZeroFields()
for _, f := range overrides {
f(sample)
}
return sample
}
func sampleHTTPOriginConfig(overrides ...func(*HTTPOriginConfig)) *HTTPOriginConfig {
sample := &HTTPOriginConfig{
URLString: "https.example.com",
TCPKeepAlive: 7 * time.Second,
DialDualStack: true,
TLSHandshakeTimeout: 11 * time.Second,
TLSVerify: true,
OriginCAPool: "/etc/cert.pem",
OriginServerName: "secure.example.com",
MaxIdleConnections: 19,
IdleConnectionTimeout: 17 * time.Second,
ProxyConnectionTimeout: 15 * time.Second,
ExpectContinueTimeout: 21 * time.Second,
ChunkedEncoding: true,
}
sample.ensureNoZeroFields()
for _, f := range overrides {
f(sample)
}
return sample
}
func sampleHTTPOriginConfigUnixPath(overrides ...func(*HTTPOriginConfig)) *HTTPOriginConfig {
sample := &HTTPOriginConfig{
URLString: "unix:/var/lib/file.sock",
TCPKeepAlive: 7 * time.Second,
DialDualStack: true,
TLSHandshakeTimeout: 11 * time.Second,
TLSVerify: true,
OriginCAPool: "/etc/cert.pem",
OriginServerName: "secure.example.com",
MaxIdleConnections: 19,
IdleConnectionTimeout: 17 * time.Second,
ProxyConnectionTimeout: 15 * time.Second,
ExpectContinueTimeout: 21 * time.Second,
ChunkedEncoding: true,
}
sample.ensureNoZeroFields()
for _, f := range overrides {
f(sample)
}
return sample
}
func sampleWebSocketOriginConfig(overrides ...func(*WebSocketOriginConfig)) *WebSocketOriginConfig {
sample := &WebSocketOriginConfig{
URLString: "ssh://example.com",
TLSVerify: true,
OriginCAPool: "/etc/cert.pem",
OriginServerName: "secure.example.com",
}
sample.ensureNoZeroFields()
for _, f := range overrides {
f(sample)
}
return sample
}
func (c *ClientConfig) ensureNoZeroFields() {
ensureNoZeroFieldsInSample(reflect.ValueOf(c), []string{"DoHProxyConfigs", "ReverseProxyConfigs"})
}
func (c *SupervisorConfig) ensureNoZeroFields() {
ensureNoZeroFieldsInSample(reflect.ValueOf(c), []string{})
}
func (c *EdgeConnectionConfig) ensureNoZeroFields() {
ensureNoZeroFieldsInSample(reflect.ValueOf(c), []string{})
}
func (c *DoHProxyConfig) ensureNoZeroFields() {
ensureNoZeroFieldsInSample(reflect.ValueOf(c), []string{})
}
func (c *ReverseProxyConfig) ensureNoZeroFields() {
ensureNoZeroFieldsInSample(reflect.ValueOf(c), []string{})
}
func (c *HTTPOriginConfig) ensureNoZeroFields() {
ensureNoZeroFieldsInSample(reflect.ValueOf(c), []string{})
}
func (c *WebSocketOriginConfig) ensureNoZeroFields() {
ensureNoZeroFieldsInSample(reflect.ValueOf(c), []string{})
}
// ensureNoZeroFieldsInSample checks that all fields in the sample struct,
// except those listed in `allowedZeroFieldNames`, are initialized to nonzero
// values. Note that the value has to be a pointer for reflection to work
// correctly:
// e := &ExampleStruct{ ... }
// ensureNoZeroFieldsInSample(reflect.ValueOf(e), []string{})
//
// Context:
// Our tests work by taking a sample struct and marshalling/unmarshalling it.
// This makes them easy to write, but introduces some risk: if we don't
// include a field in the sample value, it won't be covered under tests.
// This check reduces that risk by requiring fields to be either initialized
// or explicitly uninitialized.
func ensureNoZeroFieldsInSample(ptrToSampleValue reflect.Value, allowedZeroFieldNames []string) {
sampleValue := ptrToSampleValue.Elem()
structType := ptrToSampleValue.Type().Elem()
allowedZeroFieldSet := make(map[string]bool)
for _, name := range allowedZeroFieldNames {
if _, ok := structType.FieldByName(name); !ok {
panic(fmt.Sprintf("struct %v has no field %v", structType.Name(), name))
}
allowedZeroFieldSet[name] = true
}
for i := 0; i < structType.NumField(); i++ {
if allowedZeroFieldSet[structType.Field(i).Name] {
continue
}
zeroValue := reflect.Zero(structType.Field(i).Type)
if reflect.DeepEqual(zeroValue.Interface(), sampleValue.Field(i).Interface()) {
panic(fmt.Sprintf("In the sample value for struct %v, field %v was not initialized", structType.Name(), structType.Field(i).Name))
}
}
}

275
tunnelrpc/pogs/tunnelrpc.go
View File

@ -3,11 +3,8 @@ package pogs
import (
"context"
"fmt"
"time"
"github.com/cloudflare/cloudflared/tunnelrpc"
"github.com/google/uuid"
"github.com/pkg/errors"
capnp "zombiezen.com/go/capnproto2"
"zombiezen.com/go/capnproto2/pogs"
@ -184,143 +181,6 @@ func UnmarshalRegistrationOptions(s tunnelrpc.RegistrationOptions) (*Registratio
return p, err
}
// ConnectResult models the result of Connect RPC, implemented by ConnectError and ConnectSuccess.
type ConnectResult interface {
ConnectError() *ConnectError
ConnectedTo() string
ClientConfig() *ClientConfig
Marshal(s tunnelrpc.ConnectResult) error
}
func MarshalConnectResult(s tunnelrpc.ConnectResult, p ConnectResult) error {
return p.Marshal(s)
}
func UnmarshalConnectResult(s tunnelrpc.ConnectResult) (ConnectResult, error) {
switch s.Result().Which() {
case tunnelrpc.ConnectResult_result_Which_err:
capnpConnectError, err := s.Result().Err()
if err != nil {
return nil, err
}
return UnmarshalConnectError(capnpConnectError)
case tunnelrpc.ConnectResult_result_Which_success:
capnpConnectSuccess, err := s.Result().Success()
if err != nil {
return nil, err
}
return UnmarshalConnectSuccess(capnpConnectSuccess)
default:
return nil, fmt.Errorf("Unmarshal %v not implemented yet", s.Result().Which().String())
}
}
// ConnectSuccess is the concrete returned type when Connect RPC succeed
type ConnectSuccess struct {
ServerLocationName string
Config *ClientConfig
}
func (*ConnectSuccess) ConnectError() *ConnectError {
return nil
}
func (cs *ConnectSuccess) ConnectedTo() string {
return cs.ServerLocationName
}
func (cs *ConnectSuccess) ClientConfig() *ClientConfig {
return cs.Config
}
func (cs *ConnectSuccess) Marshal(s tunnelrpc.ConnectResult) error {
capnpConnectSuccess, err := s.Result().NewSuccess()
if err != nil {
return err
}
err = capnpConnectSuccess.SetServerLocationName(cs.ServerLocationName)
if err != nil {
return errors.Wrap(err, "failed to set ConnectSuccess.ServerLocationName")
}
if cs.Config != nil {
capnpClientConfig, err := capnpConnectSuccess.NewClientConfig()
if err != nil {
return errors.Wrap(err, "failed to initialize ConnectSuccess.ClientConfig")
}
if err := MarshalClientConfig(capnpClientConfig, cs.Config); err != nil {
return errors.Wrap(err, "failed to marshal ClientConfig")
}
}
return nil
}
func UnmarshalConnectSuccess(s tunnelrpc.ConnectSuccess) (*ConnectSuccess, error) {
p := new(ConnectSuccess)
serverLocationName, err := s.ServerLocationName()
if err != nil {
return nil, errors.Wrap(err, "failed to get tunnelrpc.ConnectSuccess.ServerLocationName")
}
p.ServerLocationName = serverLocationName
if s.HasClientConfig() {
capnpClientConfig, err := s.ClientConfig()
if err != nil {
return nil, errors.Wrap(err, "failed to get tunnelrpc.ConnectSuccess.ClientConfig")
}
p.Config, err = UnmarshalClientConfig(capnpClientConfig)
if err != nil {
return nil, errors.Wrap(err, "failed to get unmarshal ClientConfig")
}
}
return p, nil
}
// ConnectError is the concrete returned type when Connect RPC encounters some error
type ConnectError struct {
Cause string
RetryAfter time.Duration
ShouldRetry bool
}
func (ce *ConnectError) ConnectError() *ConnectError {
return ce
}
func (*ConnectError) ConnectedTo() string {
return ""
}
func (*ConnectError) ClientConfig() *ClientConfig {
return nil
}
func (ce *ConnectError) Marshal(s tunnelrpc.ConnectResult) error {
capnpConnectError, err := s.Result().NewErr()
if err != nil {
return err
}
return MarshalConnectError(capnpConnectError, ce)
}
func MarshalConnectError(s tunnelrpc.ConnectError, p *ConnectError) error {
return pogs.Insert(tunnelrpc.ConnectError_TypeID, s.Struct, p)
}
func UnmarshalConnectError(s tunnelrpc.ConnectError) (*ConnectError, error) {
p := new(ConnectError)
err := pogs.Extract(p, tunnelrpc.ConnectError_TypeID, s.Struct)
return p, err
}
func (e *ConnectError) Error() string {
return e.Cause
}
type Tag struct {
Name string `json:"name"`
Value string `json:"value"`
@ -340,102 +200,10 @@ func UnmarshalServerInfo(s tunnelrpc.ServerInfo) (*ServerInfo, error) {
return p, err
}
type ConnectParameters struct {
OriginCert []byte
CloudflaredID uuid.UUID
NumPreviousAttempts uint8
Tags []Tag
CloudflaredVersion string
IntentLabel string
}
func MarshalConnectParameters(s tunnelrpc.CapnpConnectParameters, p *ConnectParameters) error {
if err := s.SetOriginCert(p.OriginCert); err != nil {
return err
}
cloudflaredIDBytes, err := p.CloudflaredID.MarshalBinary()
if err != nil {
return err
}
if err := s.SetCloudflaredID(cloudflaredIDBytes); err != nil {
return err
}
s.SetNumPreviousAttempts(p.NumPreviousAttempts)
if len(p.Tags) > 0 {
tagsCapnpList, err := s.NewTags(int32(len(p.Tags)))
if err != nil {
return err
}
for i, tag := range p.Tags {
tagCapnp := tagsCapnpList.At(i)
if err := tagCapnp.SetName(tag.Name); err != nil {
return err
}
if err := tagCapnp.SetValue(tag.Value); err != nil {
return err
}
}
}
if err := s.SetCloudflaredVersion(p.CloudflaredVersion); err != nil {
return err
}
return s.SetIntentLabel(p.IntentLabel)
}
func UnmarshalConnectParameters(s tunnelrpc.CapnpConnectParameters) (*ConnectParameters, error) {
originCert, err := s.OriginCert()
if err != nil {
return nil, err
}
cloudflaredIDBytes, err := s.CloudflaredID()
if err != nil {
return nil, err
}
cloudflaredID, err := uuid.FromBytes(cloudflaredIDBytes)
if err != nil {
return nil, err
}
tagsCapnpList, err := s.Tags()
if err != nil {
return nil, err
}
var tags []Tag
for i := 0; i < tagsCapnpList.Len(); i++ {
tagCapnp := tagsCapnpList.At(i)
name, err := tagCapnp.Name()
if err != nil {
return nil, err
}
value, err := tagCapnp.Value()
if err != nil {
return nil, err
}
tags = append(tags, Tag{Name: name, Value: value})
}
cloudflaredVersion, err := s.CloudflaredVersion()
if err != nil {
return nil, err
}
intentLabel, err := s.IntentLabel()
return &ConnectParameters{
OriginCert: originCert,
CloudflaredID: cloudflaredID,
NumPreviousAttempts: s.NumPreviousAttempts(),
Tags: tags,
CloudflaredVersion: cloudflaredVersion,
IntentLabel: intentLabel,
}, nil
}
type TunnelServer interface {
RegisterTunnel(ctx context.Context, originCert []byte, hostname string, options *RegistrationOptions) *TunnelRegistration
GetServerInfo(ctx context.Context) (*ServerInfo, error)
UnregisterTunnel(ctx context.Context, gracePeriodNanoSec int64) error
Connect(ctx context.Context, parameters *ConnectParameters) (ConnectResult, error)
Authenticate(ctx context.Context, originCert []byte, hostname string, options *RegistrationOptions) (*AuthenticateResponse, error)
ReconnectTunnel(ctx context.Context, jwt, eventDigest, connDigest []byte, hostname string, options *RegistrationOptions) (*TunnelRegistration, error)
}
@ -494,25 +262,8 @@ func (i TunnelServer_PogsImpl) UnregisterTunnel(p tunnelrpc.TunnelServer_unregis
return i.impl.UnregisterTunnel(p.Ctx, gracePeriodNanoSec)
}
func (i TunnelServer_PogsImpl) Connect(p tunnelrpc.TunnelServer_connect) error {
parameters, err := p.Params.Parameters()
if err != nil {
return err
}
pogsParameters, err := UnmarshalConnectParameters(parameters)
if err != nil {
return err
}
server.Ack(p.Options)
connectResult, err := i.impl.Connect(p.Ctx, pogsParameters)
if err != nil {
return err
}
result, err := p.Results.NewResult()
if err != nil {
return err
}
return connectResult.Marshal(result)
func (i TunnelServer_PogsImpl) ObsoleteDeclarativeTunnelConnect(p tunnelrpc.TunnelServer_obsoleteDeclarativeTunnelConnect) error {
return fmt.Errorf("RPC to create declarative tunnel connection has been deprecated")
}
type TunnelServer_PogsClient struct {
@ -578,25 +329,3 @@ func (c TunnelServer_PogsClient) UnregisterTunnel(ctx context.Context, gracePeri
_, err := promise.Struct()
return err
}
func (c TunnelServer_PogsClient) Connect(ctx context.Context,
parameters *ConnectParameters,
) (ConnectResult, error) {
client := tunnelrpc.TunnelServer{Client: c.Client}
promise := client.Connect(ctx, func(p tunnelrpc.TunnelServer_connect_Params) error {
connectParameters, err := p.NewParameters()
if err != nil {
return err
}
err = MarshalConnectParameters(connectParameters, parameters)
if err != nil {
return err
}
return nil
})
retval, err := promise.Result().Struct()
if err != nil {
return nil, err
}
return UnmarshalConnectResult(retval)
}

94
tunnelrpc/pogs/tunnelrpc_test.go
View File

@ -2,12 +2,9 @@ package pogs
import (
"fmt"
"reflect"
"testing"
"time"
"github.com/cloudflare/cloudflared/tunnelrpc"
"github.com/google/uuid"
"github.com/stretchr/testify/assert"
capnp "zombiezen.com/go/capnproto2"
)
@ -56,94 +53,3 @@ func TestTunnelRegistration(t *testing.T) {
}
}
func TestConnectResult(t *testing.T) {
testCases := []ConnectResult{
&ConnectError{
Cause: "it broke",
ShouldRetry: false,
RetryAfter: 2 * time.Second,
},
&ConnectSuccess{
ServerLocationName: "SFO",
Config: sampleClientConfig(),
},
&ConnectSuccess{
ServerLocationName: "",
Config: nil,
},
}
for i, testCase := range testCases {
_, seg, err := capnp.NewMessage(capnp.SingleSegment(nil))
capnpEntity, err := tunnelrpc.NewConnectResult(seg)
if !assert.NoError(t, err) {
t.Fatal("Couldn't initialize a new message")
}
err = MarshalConnectResult(capnpEntity, testCase)
if !assert.NoError(t, err, "testCase #%v failed to marshal", i) {
continue
}
result, err := UnmarshalConnectResult(capnpEntity)
if !assert.NoError(t, err, "testCase #%v failed to unmarshal", i) {
continue
}
assert.Equal(t, testCase, result, "testCase index %v didn't preserve struct through marshalling and unmarshalling", i)
}
}
func TestConnectParameters(t *testing.T) {
testCases := []*ConnectParameters{
sampleConnectParameters(),
sampleConnectParameters(func(c *ConnectParameters) {
c.IntentLabel = "my_intent"
}),
sampleConnectParameters(func(c *ConnectParameters) {
c.Tags = nil
}),
}
for i, testCase := range testCases {
_, seg, err := capnp.NewMessage(capnp.SingleSegment(nil))
capnpEntity, err := tunnelrpc.NewCapnpConnectParameters(seg)
if !assert.NoError(t, err) {
t.Fatal("Couldn't initialize a new message")
}
err = MarshalConnectParameters(capnpEntity, testCase)
if !assert.NoError(t, err, "testCase index %v failed to marshal", i) {
continue
}
result, err := UnmarshalConnectParameters(capnpEntity)
if !assert.NoError(t, err, "testCase index %v failed to unmarshal", i) {
continue
}
assert.Equal(t, testCase, result, "testCase index %v didn't preserve struct through marshalling and unmarshalling", i)
}
}
func sampleConnectParameters(overrides ...func(*ConnectParameters)) *ConnectParameters {
cloudflaredID, err := uuid.Parse("ED7BA470-8E54-465E-825C-99712043E01C")
if err != nil {
panic(err)
}
sample := &ConnectParameters{
OriginCert: []byte("my-origin-cert"),
CloudflaredID: cloudflaredID,
NumPreviousAttempts: 19,
Tags: []Tag{
Tag{
Name: "provision-method",
Value: "new",
},
},
CloudflaredVersion: "7.0",
IntentLabel: "my_intent",
}
sample.ensureNoZeroFields()
for _, f := range overrides {
f(sample)
}
return sample
}
func (c *ConnectParameters) ensureNoZeroFields() {
ensureNoZeroFieldsInSample(reflect.ValueOf(c), []string{})
}

3
tunnelrpc/tunnelrpc.capnp
View File

@ -295,7 +295,8 @@ interface TunnelServer {
registerTunnel @0 (originCert :Data, hostname :Text, options :RegistrationOptions) -> (result :TunnelRegistration);
getServerInfo @1 () -> (result :ServerInfo);
unregisterTunnel @2 (gracePeriodNanoSec :Int64) -> ();
connect @3 (parameters :CapnpConnectParameters) -> (result :ConnectResult);
# obsoleteDeclarativeTunnelConnect RPC deprecated in TUN-3019
obsoleteDeclarativeTunnelConnect @3 (parameters :CapnpConnectParameters) -> (result :ConnectResult);
authenticate @4 (originCert :Data, hostname :Text, options :RegistrationOptions) -> (result :AuthenticateResponse);
reconnectTunnel @5 (jwt :Data, eventDigest :Data, connDigest :Data, hostname :Text, options :RegistrationOptions) -> (result :TunnelRegistration);
}

644
tunnelrpc/tunnelrpc.capnp.go
View File

@ -2874,9 +2874,9 @@ func (c TunnelServer) UnregisterTunnel(ctx context.Context, params func(TunnelSe
}
return TunnelServer_unregisterTunnel_Results_Promise{Pipeline: capnp.NewPipeline(c.Client.Call(call))}
}
func (c TunnelServer) Connect(ctx context.Context, params func(TunnelServer_connect_Params) error, opts ...capnp.CallOption) TunnelServer_connect_Results_Promise {
func (c TunnelServer) ObsoleteDeclarativeTunnelConnect(ctx context.Context, params func(TunnelServer_obsoleteDeclarativeTunnelConnect_Params) error, opts ...capnp.CallOption) TunnelServer_obsoleteDeclarativeTunnelConnect_Results_Promise {
if c.Client == nil {
return TunnelServer_connect_Results_Promise{Pipeline: capnp.NewPipeline(capnp.ErrorAnswer(capnp.ErrNullClient))}
return TunnelServer_obsoleteDeclarativeTunnelConnect_Results_Promise{Pipeline: capnp.NewPipeline(capnp.ErrorAnswer(capnp.ErrNullClient))}
}
call := &capnp.Call{
Ctx: ctx,
@ -2884,15 +2884,17 @@ func (c TunnelServer) Connect(ctx context.Context, params func(TunnelServer_conn
InterfaceID: 0xea58385c65416035,
MethodID: 3,
InterfaceName: "tunnelrpc/tunnelrpc.capnp:TunnelServer",
MethodName: "connect",
MethodName: "obsoleteDeclarativeTunnelConnect",
},
Options: capnp.NewCallOptions(opts),
}
if params != nil {
call.ParamsSize = capnp.ObjectSize{DataSize: 0, PointerCount: 1}
call.ParamsFunc = func(s capnp.Struct) error { return params(TunnelServer_connect_Params{Struct: s}) }
call.ParamsFunc = func(s capnp.Struct) error {
return params(TunnelServer_obsoleteDeclarativeTunnelConnect_Params{Struct: s})
}
return TunnelServer_connect_Results_Promise{Pipeline: capnp.NewPipeline(c.Client.Call(call))}
}
return TunnelServer_obsoleteDeclarativeTunnelConnect_Results_Promise{Pipeline: capnp.NewPipeline(c.Client.Call(call))}
}
func (c TunnelServer) Authenticate(ctx context.Context, params func(TunnelServer_authenticate_Params) error, opts ...capnp.CallOption) TunnelServer_authenticate_Results_Promise {
if c.Client == nil {
@ -2942,7 +2944,7 @@ type TunnelServer_Server interface {
UnregisterTunnel(TunnelServer_unregisterTunnel) error
Connect(TunnelServer_connect) error
ObsoleteDeclarativeTunnelConnect(TunnelServer_obsoleteDeclarativeTunnelConnect) error
Authenticate(TunnelServer_authenticate) error
@ -3006,11 +3008,11 @@ func TunnelServer_Methods(methods []server.Method, s TunnelServer_Server) []serv
InterfaceID: 0xea58385c65416035,
MethodID: 3,
InterfaceName: "tunnelrpc/tunnelrpc.capnp:TunnelServer",
MethodName: "connect",
MethodName: "obsoleteDeclarativeTunnelConnect",
},
Impl: func(c context.Context, opts capnp.CallOptions, p, r capnp.Struct) error {
call := TunnelServer_connect{c, opts, TunnelServer_connect_Params{Struct: p}, TunnelServer_connect_Results{Struct: r}}
return s.Connect(call)
call := TunnelServer_obsoleteDeclarativeTunnelConnect{c, opts, TunnelServer_obsoleteDeclarativeTunnelConnect_Params{Struct: p}, TunnelServer_obsoleteDeclarativeTunnelConnect_Results{Struct: r}}
return s.ObsoleteDeclarativeTunnelConnect(call)
},
ResultsSize: capnp.ObjectSize{DataSize: 0, PointerCount: 1},
})
@ -3070,12 +3072,12 @@ type TunnelServer_unregisterTunnel struct {
Results TunnelServer_unregisterTunnel_Results
}
// TunnelServer_connect holds the arguments for a server call to TunnelServer.connect.
type TunnelServer_connect struct {
// TunnelServer_obsoleteDeclarativeTunnelConnect holds the arguments for a server call to TunnelServer.obsoleteDeclarativeTunnelConnect.
type TunnelServer_obsoleteDeclarativeTunnelConnect struct {
Ctx context.Context
Options capnp.CallOptions
Params TunnelServer_connect_Params
Results TunnelServer_connect_Results
Params TunnelServer_obsoleteDeclarativeTunnelConnect_Params
Results TunnelServer_obsoleteDeclarativeTunnelConnect_Results
}
// TunnelServer_authenticate holds the arguments for a server call to TunnelServer.authenticate.
@ -3552,48 +3554,48 @@ func (p TunnelServer_unregisterTunnel_Results_Promise) Struct() (TunnelServer_un
return TunnelServer_unregisterTunnel_Results{s}, err
}
type TunnelServer_connect_Params struct{ capnp.Struct }
type TunnelServer_obsoleteDeclarativeTunnelConnect_Params struct{ capnp.Struct }
// TunnelServer_connect_Params_TypeID is the unique identifier for the type TunnelServer_connect_Params.
const TunnelServer_connect_Params_TypeID = 0xa766b24d4fe5da35
// TunnelServer_obsoleteDeclarativeTunnelConnect_Params_TypeID is the unique identifier for the type TunnelServer_obsoleteDeclarativeTunnelConnect_Params.
const TunnelServer_obsoleteDeclarativeTunnelConnect_Params_TypeID = 0xa766b24d4fe5da35
func NewTunnelServer_connect_Params(s *capnp.Segment) (TunnelServer_connect_Params, error) {
func NewTunnelServer_obsoleteDeclarativeTunnelConnect_Params(s *capnp.Segment) (TunnelServer_obsoleteDeclarativeTunnelConnect_Params, error) {
st, err := capnp.NewStruct(s, capnp.ObjectSize{DataSize: 0, PointerCount: 1})
return TunnelServer_connect_Params{st}, err
return TunnelServer_obsoleteDeclarativeTunnelConnect_Params{st}, err
}
func NewRootTunnelServer_connect_Params(s *capnp.Segment) (TunnelServer_connect_Params, error) {
func NewRootTunnelServer_obsoleteDeclarativeTunnelConnect_Params(s *capnp.Segment) (TunnelServer_obsoleteDeclarativeTunnelConnect_Params, error) {
st, err := capnp.NewRootStruct(s, capnp.ObjectSize{DataSize: 0, PointerCount: 1})
return TunnelServer_connect_Params{st}, err
return TunnelServer_obsoleteDeclarativeTunnelConnect_Params{st}, err
}
func ReadRootTunnelServer_connect_Params(msg *capnp.Message) (TunnelServer_connect_Params, error) {
func ReadRootTunnelServer_obsoleteDeclarativeTunnelConnect_Params(msg *capnp.Message) (TunnelServer_obsoleteDeclarativeTunnelConnect_Params, error) {
root, err := msg.RootPtr()
return TunnelServer_connect_Params{root.Struct()}, err
return TunnelServer_obsoleteDeclarativeTunnelConnect_Params{root.Struct()}, err
}
func (s TunnelServer_connect_Params) String() string {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Params) String() string {
str, _ := text.Marshal(0xa766b24d4fe5da35, s.Struct)
return str
}
func (s TunnelServer_connect_Params) Parameters() (CapnpConnectParameters, error) {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Params) Parameters() (CapnpConnectParameters, error) {
p, err := s.Struct.Ptr(0)
return CapnpConnectParameters{Struct: p.Struct()}, err
}
func (s TunnelServer_connect_Params) HasParameters() bool {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Params) HasParameters() bool {
p, err := s.Struct.Ptr(0)
return p.IsValid() || err != nil
}
func (s TunnelServer_connect_Params) SetParameters(v CapnpConnectParameters) error {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Params) SetParameters(v CapnpConnectParameters) error {
return s.Struct.SetPtr(0, v.Struct.ToPtr())
}
// NewParameters sets the parameters field to a newly
// allocated CapnpConnectParameters struct, preferring placement in s's segment.
func (s TunnelServer_connect_Params) NewParameters() (CapnpConnectParameters, error) {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Params) NewParameters() (CapnpConnectParameters, error) {
ss, err := NewCapnpConnectParameters(s.Struct.Segment())
if err != nil {
return CapnpConnectParameters{}, err
@ -3602,82 +3604,82 @@ func (s TunnelServer_connect_Params) NewParameters() (CapnpConnectParameters, er
return ss, err
}
// TunnelServer_connect_Params_List is a list of TunnelServer_connect_Params.
type TunnelServer_connect_Params_List struct{ capnp.List }
// TunnelServer_obsoleteDeclarativeTunnelConnect_Params_List is a list of TunnelServer_obsoleteDeclarativeTunnelConnect_Params.
type TunnelServer_obsoleteDeclarativeTunnelConnect_Params_List struct{ capnp.List }
// NewTunnelServer_connect_Params creates a new list of TunnelServer_connect_Params.
func NewTunnelServer_connect_Params_List(s *capnp.Segment, sz int32) (TunnelServer_connect_Params_List, error) {
// NewTunnelServer_obsoleteDeclarativeTunnelConnect_Params creates a new list of TunnelServer_obsoleteDeclarativeTunnelConnect_Params.
func NewTunnelServer_obsoleteDeclarativeTunnelConnect_Params_List(s *capnp.Segment, sz int32) (TunnelServer_obsoleteDeclarativeTunnelConnect_Params_List, error) {
l, err := capnp.NewCompositeList(s, capnp.ObjectSize{DataSize: 0, PointerCount: 1}, sz)
return TunnelServer_connect_Params_List{l}, err
return TunnelServer_obsoleteDeclarativeTunnelConnect_Params_List{l}, err
}
func (s TunnelServer_connect_Params_List) At(i int) TunnelServer_connect_Params {
return TunnelServer_connect_Params{s.List.Struct(i)}
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Params_List) At(i int) TunnelServer_obsoleteDeclarativeTunnelConnect_Params {
return TunnelServer_obsoleteDeclarativeTunnelConnect_Params{s.List.Struct(i)}
}
func (s TunnelServer_connect_Params_List) Set(i int, v TunnelServer_connect_Params) error {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Params_List) Set(i int, v TunnelServer_obsoleteDeclarativeTunnelConnect_Params) error {
return s.List.SetStruct(i, v.Struct)
}
func (s TunnelServer_connect_Params_List) String() string {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Params_List) String() string {
str, _ := text.MarshalList(0xa766b24d4fe5da35, s.List)
return str
}
// TunnelServer_connect_Params_Promise is a wrapper for a TunnelServer_connect_Params promised by a client call.
type TunnelServer_connect_Params_Promise struct{ *capnp.Pipeline }
// TunnelServer_obsoleteDeclarativeTunnelConnect_Params_Promise is a wrapper for a TunnelServer_obsoleteDeclarativeTunnelConnect_Params promised by a client call.
type TunnelServer_obsoleteDeclarativeTunnelConnect_Params_Promise struct{ *capnp.Pipeline }
func (p TunnelServer_connect_Params_Promise) Struct() (TunnelServer_connect_Params, error) {
func (p TunnelServer_obsoleteDeclarativeTunnelConnect_Params_Promise) Struct() (TunnelServer_obsoleteDeclarativeTunnelConnect_Params, error) {
s, err := p.Pipeline.Struct()
return TunnelServer_connect_Params{s}, err
return TunnelServer_obsoleteDeclarativeTunnelConnect_Params{s}, err
}
func (p TunnelServer_connect_Params_Promise) Parameters() CapnpConnectParameters_Promise {
func (p TunnelServer_obsoleteDeclarativeTunnelConnect_Params_Promise) Parameters() CapnpConnectParameters_Promise {
return CapnpConnectParameters_Promise{Pipeline: p.Pipeline.GetPipeline(0)}
}
type TunnelServer_connect_Results struct{ capnp.Struct }
type TunnelServer_obsoleteDeclarativeTunnelConnect_Results struct{ capnp.Struct }
// TunnelServer_connect_Results_TypeID is the unique identifier for the type TunnelServer_connect_Results.
const TunnelServer_connect_Results_TypeID = 0xfeac5c8f4899ef7c
// TunnelServer_obsoleteDeclarativeTunnelConnect_Results_TypeID is the unique identifier for the type TunnelServer_obsoleteDeclarativeTunnelConnect_Results.
const TunnelServer_obsoleteDeclarativeTunnelConnect_Results_TypeID = 0xfeac5c8f4899ef7c
func NewTunnelServer_connect_Results(s *capnp.Segment) (TunnelServer_connect_Results, error) {
func NewTunnelServer_obsoleteDeclarativeTunnelConnect_Results(s *capnp.Segment) (TunnelServer_obsoleteDeclarativeTunnelConnect_Results, error) {
st, err := capnp.NewStruct(s, capnp.ObjectSize{DataSize: 0, PointerCount: 1})
return TunnelServer_connect_Results{st}, err
return TunnelServer_obsoleteDeclarativeTunnelConnect_Results{st}, err
}
func NewRootTunnelServer_connect_Results(s *capnp.Segment) (TunnelServer_connect_Results, error) {
func NewRootTunnelServer_obsoleteDeclarativeTunnelConnect_Results(s *capnp.Segment) (TunnelServer_obsoleteDeclarativeTunnelConnect_Results, error) {
st, err := capnp.NewRootStruct(s, capnp.ObjectSize{DataSize: 0, PointerCount: 1})
return TunnelServer_connect_Results{st}, err
return TunnelServer_obsoleteDeclarativeTunnelConnect_Results{st}, err
}
func ReadRootTunnelServer_connect_Results(msg *capnp.Message) (TunnelServer_connect_Results, error) {
func ReadRootTunnelServer_obsoleteDeclarativeTunnelConnect_Results(msg *capnp.Message) (TunnelServer_obsoleteDeclarativeTunnelConnect_Results, error) {
root, err := msg.RootPtr()
return TunnelServer_connect_Results{root.Struct()}, err
return TunnelServer_obsoleteDeclarativeTunnelConnect_Results{root.Struct()}, err
}
func (s TunnelServer_connect_Results) String() string {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Results) String() string {
str, _ := text.Marshal(0xfeac5c8f4899ef7c, s.Struct)
return str
}
func (s TunnelServer_connect_Results) Result() (ConnectResult, error) {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Results) Result() (ConnectResult, error) {
p, err := s.Struct.Ptr(0)
return ConnectResult{Struct: p.Struct()}, err
}
func (s TunnelServer_connect_Results) HasResult() bool {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Results) HasResult() bool {
p, err := s.Struct.Ptr(0)
return p.IsValid() || err != nil
}
func (s TunnelServer_connect_Results) SetResult(v ConnectResult) error {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Results) SetResult(v ConnectResult) error {
return s.Struct.SetPtr(0, v.Struct.ToPtr())
}
// NewResult sets the result field to a newly
// allocated ConnectResult struct, preferring placement in s's segment.
func (s TunnelServer_connect_Results) NewResult() (ConnectResult, error) {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Results) NewResult() (ConnectResult, error) {
ss, err := NewConnectResult(s.Struct.Segment())
if err != nil {
return ConnectResult{}, err
@ -3686,37 +3688,37 @@ func (s TunnelServer_connect_Results) NewResult() (ConnectResult, error) {
return ss, err
}
// TunnelServer_connect_Results_List is a list of TunnelServer_connect_Results.
type TunnelServer_connect_Results_List struct{ capnp.List }
// TunnelServer_obsoleteDeclarativeTunnelConnect_Results_List is a list of TunnelServer_obsoleteDeclarativeTunnelConnect_Results.
type TunnelServer_obsoleteDeclarativeTunnelConnect_Results_List struct{ capnp.List }
// NewTunnelServer_connect_Results creates a new list of TunnelServer_connect_Results.
func NewTunnelServer_connect_Results_List(s *capnp.Segment, sz int32) (TunnelServer_connect_Results_List, error) {
// NewTunnelServer_obsoleteDeclarativeTunnelConnect_Results creates a new list of TunnelServer_obsoleteDeclarativeTunnelConnect_Results.
func NewTunnelServer_obsoleteDeclarativeTunnelConnect_Results_List(s *capnp.Segment, sz int32) (TunnelServer_obsoleteDeclarativeTunnelConnect_Results_List, error) {
l, err := capnp.NewCompositeList(s, capnp.ObjectSize{DataSize: 0, PointerCount: 1}, sz)
return TunnelServer_connect_Results_List{l}, err
return TunnelServer_obsoleteDeclarativeTunnelConnect_Results_List{l}, err
}
func (s TunnelServer_connect_Results_List) At(i int) TunnelServer_connect_Results {
return TunnelServer_connect_Results{s.List.Struct(i)}
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Results_List) At(i int) TunnelServer_obsoleteDeclarativeTunnelConnect_Results {
return TunnelServer_obsoleteDeclarativeTunnelConnect_Results{s.List.Struct(i)}
}
func (s TunnelServer_connect_Results_List) Set(i int, v TunnelServer_connect_Results) error {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Results_List) Set(i int, v TunnelServer_obsoleteDeclarativeTunnelConnect_Results) error {
return s.List.SetStruct(i, v.Struct)
}
func (s TunnelServer_connect_Results_List) String() string {
func (s TunnelServer_obsoleteDeclarativeTunnelConnect_Results_List) String() string {
str, _ := text.MarshalList(0xfeac5c8f4899ef7c, s.List)
return str
}
// TunnelServer_connect_Results_Promise is a wrapper for a TunnelServer_connect_Results promised by a client call.
type TunnelServer_connect_Results_Promise struct{ *capnp.Pipeline }
// TunnelServer_obsoleteDeclarativeTunnelConnect_Results_Promise is a wrapper for a TunnelServer_obsoleteDeclarativeTunnelConnect_Results promised by a client call.
type TunnelServer_obsoleteDeclarativeTunnelConnect_Results_Promise struct{ *capnp.Pipeline }
func (p TunnelServer_connect_Results_Promise) Struct() (TunnelServer_connect_Results, error) {
func (p TunnelServer_obsoleteDeclarativeTunnelConnect_Results_Promise) Struct() (TunnelServer_obsoleteDeclarativeTunnelConnect_Results, error) {
s, err := p.Pipeline.Struct()
return TunnelServer_connect_Results{s}, err
return TunnelServer_obsoleteDeclarativeTunnelConnect_Results{s}, err
}
func (p TunnelServer_connect_Results_Promise) Result() ConnectResult_Promise {
func (p TunnelServer_obsoleteDeclarativeTunnelConnect_Results_Promise) Result() ConnectResult_Promise {
return ConnectResult_Promise{Pipeline: p.Pipeline.GetPipeline(0)}
}
@ -4383,257 +4385,259 @@ func (p ClientService_useConfiguration_Results_Promise) Result() UseConfiguratio
return UseConfigurationResult_Promise{Pipeline: p.Pipeline.GetPipeline(0)}
}
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"\xf1\xe48\xea\xa1\x02n\xb3\x88\xea}\x04%\x18\x9b;" +
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"\x94\xc6\x06\x00\xe5\x03.\xd7\xaf\x89^+\x848\xd8\x9d" +
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">\x8cK\xcf\xf9\x96\x9b\x90\xc9i\xc5\xeerT#\xd9" +
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"\xac\xb0+)\x06'lnz[\xbd\xe6\xe8r=p" +
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"\xd5\"\xaa\xc3\x02\x07(\xb3\xbf\x9c\xd7\xd0aK-\xb6" +
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":r\xf0\xb2\x88\xea\xe6\x18\xac\x8d\x8cF\x1d\xf5\xf8\xa5" +
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"k0\xf6'&t\x88\xe0o\xfe_\x01\x00\x00\xff\xff" +
"\x86\xbe\xf5t"
const schema_db8274f9144abc7e = "x\xda\xccZ{\x90\x15ev?\xa7\xfb\xde\xe9\x19`" +
"\xb8\xb7\xed\xb1\x18X`\x041+\xac\x10u\xd6\xc4\x9d" +
"$;O\xd8\x19\x16az\xee\x0c\xba#\xa6\xec\xb9\xf7" +
"\x9b\x99\x86\xbe\xdd\x97~\x00CpA\x0a\xa2L`\x05" +
"\x17R\xe0\xe2\x16\xe0\x12\x1fq\xb3\xe2be5jI" +
"\xb2\x1b$\xabQ6\x98\x92\x8dVT\xb0Rk\xad\xe5" +
"\xa2\xa6,Sj\xa7N\xbf\xe7\xce0\x03k\xfe\xc8?" +
":u\xee\xe9\xefq\x1e\xbf\xf3;\xe7\xe3\xfa\x9d\x93\x9a" +
"\xb8\x1b\xd2'\xab\x01\xe4C\xe9\x0a\x97-\xf8\xd5\xc6C" +
"\xd7\xfc\xd3V\x90g \xba\xdf}vi\xcd\xa7\xf6\xd6" +
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"}\x0f\xb5^\x18\xb5\xba:\xbb\x05\xa5\xa1\xd9t\x0eg" +
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"s\x08\xae\xfeZ8xn\xcb\x7f\xfe\xf9g\xc9[=" +
":\xf7\x1d\xba\xd5ss\xe9V\x9b>8\xd0~\xdf\xaa" +
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func init() {
schemas.Register(schema_db8274f9144abc7e,

2
vendor/modules.txt vendored
View File

@ -299,7 +299,7 @@ gopkg.in/urfave/cli.v2
gopkg.in/urfave/cli.v2/altsrc
# gopkg.in/yaml.v2 v2.2.4
gopkg.in/yaml.v2
# zombiezen.com/go/capnproto2 v0.0.0-20180616160808-7cfd211c19c7
# zombiezen.com/go/capnproto2 v2.18.0+incompatible
zombiezen.com/go/capnproto2
zombiezen.com/go/capnproto2/encoding/text
zombiezen.com/go/capnproto2/internal/fulfiller

5
vendor/zombiezen.com/go/capnproto2/AUTHORS generated vendored
View File

@ -10,8 +10,10 @@
# Please keep the list sorted.
Anapaya Systems AG
CloudFlare Inc.
Daniel Darabos <darabos.daniel@gmail.com>
Dominik Roos <domi.roos@gmail.com>
Eran Duchan <pavius@gmail.com>
Evan Shaw <edsrzf@gmail.com>
Google Inc.
@ -20,8 +22,11 @@ James McKaskill <james@foobar.co.nz>
Jason E. Aten <j.e.aten@gmail.com>
Johan Hernandez <im@bithavoc.io>
Joonsung Lee <joonsung@devsisters.com>
Kiwi.com s.r.o.
Lev Radomislensky <lev.radomislensky@gmail.com>
Peter Waldschmidt <peterw@gnoso.com>
Tiit Pikma <pikma@hot.ee>
Tom Thorogood <me+github@tomthorogood.co.uk>
TJ Holowaychuk <tj@apex.sh>
William Laffin <william.laffin@gmail.com>
Colin Arnott <colin@urandom.co.uk>

5
vendor/zombiezen.com/go/capnproto2/CHANGELOG.md generated vendored
View File

@ -1,5 +1,10 @@
# Go Cap'n Proto Release Notes
## 2.17.3
- Clear read limits for `const` messages in schemas.
([#131](https://github.com/capnproto/go-capnproto2/pull/131))
## 2.17.0
- Add `capnp.Canonicalize` function that implements the

6
vendor/zombiezen.com/go/capnproto2/CONTRIBUTORS generated vendored
View File

@ -18,6 +18,7 @@
Alan Braithwaite <alan@cloudflare.com>
Albert Strasheim <albert@cloudflare.com>
Daniel Darabos <darabos.daniel@gmail.com>
Dominik Roos <domi.roos@gmail.com>
Eran Duchan <pavius@gmail.com>
Evan Shaw <edsrzf@gmail.com>
Ian Denhardt <ian@zenhack.net>
@ -26,8 +27,13 @@ Jason E. Aten <j.e.aten@gmail.com>
Johan Hernandez <im@bithavoc.io>
Joonsung Lee <joonsung@devsisters.com>
Lev Radomislensky <lev.radomislensky@gmail.com>
Lukas Vogel <vogel@anapaya.net> <lukedirtwalker@gmail.com>
Martin Sucha <martin.sucha@kiwi.com>
Peter Waldschmidt <peterw@gnoso.com>
Ross Light <light@google.com> <ross@zombiezen.com>
Stephen Shirley <kormat@anapaya.net> <kormat@gmail.com>
Tiit Pikma <pikma@hot.ee>
Tom Thorogood <me+github@tomthorogood.co.uk>
TJ Holowaychuk <tj@apex.sh>
William Laffin <william.laffin@gmail.com>
Colin Arnott <colin@urandom.co.uk>

10
vendor/zombiezen.com/go/capnproto2/WORKSPACE generated vendored
View File

@ -4,17 +4,17 @@ load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
http_archive(
name = "io_bazel_rules_go",
sha256 = "8b68d0630d63d95dacc0016c3bb4b76154fe34fca93efd65d1c366de3fcb4294",
urls = ["https://github.com/bazelbuild/rules_go/releases/download/0.12.1/rules_go-0.12.1.tar.gz"],
sha256 = "86ae934bd4c43b99893fc64be9d9fc684b81461581df7ea8fc291c816f5ee8c5",
urls = ["https://github.com/bazelbuild/rules_go/releases/download/0.18.3/rules_go-0.18.3.tar.gz"],
)
http_archive(
name = "bazel_gazelle",
sha256 = "ddedc7aaeb61f2654d7d7d4fd7940052ea992ccdb031b8f9797ed143ac7e8d43",
urls = ["https://github.com/bazelbuild/bazel-gazelle/releases/download/0.12.0/bazel-gazelle-0.12.0.tar.gz"],
sha256 = "3c681998538231a2d24d0c07ed5a7658cb72bfb5fd4bf9911157c0e9ac6a2687",
urls = ["https://github.com/bazelbuild/bazel-gazelle/releases/download/0.17.0/bazel-gazelle-0.17.0.tar.gz"],
)
load("@io_bazel_rules_go//go:def.bzl", "go_register_toolchains", "go_rules_dependencies")
load("@io_bazel_rules_go//go:deps.bzl", "go_register_toolchains", "go_rules_dependencies")
go_rules_dependencies()

11
vendor/zombiezen.com/go/capnproto2/capn.go generated vendored
View File

@ -200,6 +200,9 @@ func (s *Segment) readListPtr(base Address, val rawPointer) (List, error) {
}
sz := hdr.structSize()
n := int32(hdr.offset())
if n < 0 {
return List{}, errListSize
}
// TODO(light): check that this has the same end address
if tsize, ok := sz.totalSize().times(n); !ok {
return List{}, errOverflow
@ -214,11 +217,15 @@ func (s *Segment) readListPtr(base Address, val rawPointer) (List, error) {
flags: isCompositeList,
}, nil
}
n := val.numListElements()
if n < 0 {
return List{}, errListSize
}
if lt == bit1List {
return List{
seg: s,
off: addr,
length: val.numListElements(),
length: n,
flags: isBitList,
}, nil
}
@ -226,7 +233,7 @@ func (s *Segment) readListPtr(base Address, val rawPointer) (List, error) {
seg: s,
size: val.elementSize(),
off: addr,
length: val.numListElements(),
length: n,
}, nil
}

313
vendor/zombiezen.com/go/capnproto2/encoding/text/marshal.go generated vendored
View File

@ -42,14 +42,14 @@ func MarshalList(typeID uint64, l capnp.List) (string, error) {
// An Encoder writes the text format of Cap'n Proto messages to an output stream.
type Encoder struct {
w errWriter
w indentWriter
tmp []byte
nodes nodemap.Map
}
// NewEncoder returns a new encoder that writes to w.
func NewEncoder(w io.Writer) *Encoder {
return &Encoder{w: errWriter{w: w}}
return &Encoder{w: indentWriter{w: w}}
}
// UseRegistry changes the registry that the encoder consults for
@ -58,6 +58,12 @@ func (enc *Encoder) UseRegistry(reg *schemas.Registry) {
enc.nodes.UseRegistry(reg)
}
// SetIndent sets string to indent each level with.
// An empty string disables indentation.
func (enc *Encoder) SetIndent(indent string) {
enc.w.indentPerLevel = indent
}
// Encode writes the text representation of s to the stream.
func (enc *Encoder) Encode(typeID uint64, s capnp.Struct) error {
if enc.w.err != nil {
@ -133,8 +139,14 @@ func (enc *Encoder) marshalStruct(typeID uint64, s capnp.Struct) error {
if n.StructNode().DiscriminantCount() > 0 {
discriminant = s.Uint16(capnp.DataOffset(n.StructNode().DiscriminantOffset() * 2))
}
enc.w.WriteByte('(')
fields := codeOrderFields(n.StructNode())
if len(fields) == 0 {
enc.w.WriteString("()")
return nil
}
enc.w.WriteByte('(')
enc.w.Indent()
enc.w.NewLine()
first := true
for _, f := range fields {
if !(f.Which() == schema.Field_Which_slot || f.Which() == schema.Field_Which_group) {
@ -144,7 +156,8 @@ func (enc *Encoder) marshalStruct(typeID uint64, s capnp.Struct) error {
continue
}
if !first {
enc.w.WriteString(", ")
enc.w.WriteByte(',')
enc.w.NewLineOrSpace()
}
first = false
name, err := f.NameBytes()
@ -164,6 +177,8 @@ func (enc *Encoder) marshalStruct(typeID uint64, s capnp.Struct) error {
}
}
}
enc.w.NewLine()
enc.w.Unindent()
enc.w.WriteByte(')')
return nil
}
@ -298,101 +313,154 @@ func codeOrderFields(s schema.Node_structNode) []schema.Field {
}
func (enc *Encoder) marshalList(elem schema.Type, l capnp.List) error {
switch elem.Which() {
case schema.Type_Which_void:
enc.w.WriteString(capnp.VoidList{List: l}.String())
case schema.Type_Which_bool:
enc.w.WriteString(capnp.BitList{List: l}.String())
case schema.Type_Which_int8:
enc.w.WriteString(capnp.Int8List{List: l}.String())
case schema.Type_Which_int16:
enc.w.WriteString(capnp.Int16List{List: l}.String())
case schema.Type_Which_int32:
enc.w.WriteString(capnp.Int32List{List: l}.String())
case schema.Type_Which_int64:
enc.w.WriteString(capnp.Int64List{List: l}.String())
case schema.Type_Which_uint8:
enc.w.WriteString(capnp.UInt8List{List: l}.String())
case schema.Type_Which_uint16:
enc.w.WriteString(capnp.UInt16List{List: l}.String())
case schema.Type_Which_uint32:
enc.w.WriteString(capnp.UInt32List{List: l}.String())
case schema.Type_Which_uint64:
enc.w.WriteString(capnp.UInt64List{List: l}.String())
case schema.Type_Which_float32:
enc.w.WriteString(capnp.Float32List{List: l}.String())
case schema.Type_Which_float64:
enc.w.WriteString(capnp.Float64List{List: l}.String())
case schema.Type_Which_data:
enc.w.WriteString(capnp.DataList{List: l}.String())
case schema.Type_Which_text:
enc.w.WriteString(capnp.TextList{List: l}.String())
case schema.Type_Which_structType:
enc.w.WriteByte('[')
for i := 0; i < l.Len(); i++ {
if i > 0 {
enc.w.WriteString(", ")
writeListItems := func(writeItem func(i int) error) error {
if l.Len() == 0 {
_, err := enc.w.WriteString("[]")
return err
}
err := enc.marshalStruct(elem.StructType().TypeId(), l.Struct(i))
enc.w.WriteByte('[')
enc.w.Indent()
enc.w.NewLine()
for i := 0; i < l.Len(); i++ {
err := writeItem(i)
if err != nil {
return err
}
if i == l.Len()-1 {
enc.w.NewLine()
} else {
enc.w.WriteByte(',')
enc.w.NewLineOrSpace()
}
}
enc.w.Unindent()
enc.w.WriteByte(']')
return nil
}
writeListItemsN := func(writeItem func(i int) (int, error)) error {
return writeListItems(func(i int) error {
_, err := writeItem(i)
return err
})
}
switch elem.Which() {
case schema.Type_Which_void:
return writeListItemsN(func(_ int) (int, error) {
return enc.w.WriteString("void")
})
case schema.Type_Which_bool:
p := capnp.BitList{List: l}
return writeListItemsN(func(i int) (int, error) {
if p.At(i) {
return enc.w.WriteString("true")
} else {
return enc.w.WriteString("false")
}
})
case schema.Type_Which_int8:
p := capnp.Int8List{List: l}
return writeListItemsN(func(i int) (int, error) {
return enc.w.WriteString(strconv.FormatInt(int64(p.At(i)), 10))
})
case schema.Type_Which_int16:
p := capnp.Int16List{List: l}
return writeListItemsN(func(i int) (int, error) {
return enc.w.WriteString(strconv.FormatInt(int64(p.At(i)), 10))
})
case schema.Type_Which_int32:
p := capnp.Int32List{List: l}
return writeListItemsN(func(i int) (int, error) {
return enc.w.WriteString(strconv.FormatInt(int64(p.At(i)), 10))
})
case schema.Type_Which_int64:
p := capnp.Int64List{List: l}
return writeListItemsN(func(i int) (int, error) {
return enc.w.WriteString(strconv.FormatInt(p.At(i), 10))
})
case schema.Type_Which_uint8:
p := capnp.UInt8List{List: l}
return writeListItemsN(func(i int) (int, error) {
return enc.w.WriteString(strconv.FormatUint(uint64(p.At(i)), 10))
})
case schema.Type_Which_uint16:
p := capnp.UInt16List{List: l}
return writeListItemsN(func(i int) (int, error) {
return enc.w.WriteString(strconv.FormatUint(uint64(p.At(i)), 10))
})
case schema.Type_Which_uint32:
p := capnp.UInt32List{List: l}
return writeListItemsN(func(i int) (int, error) {
return enc.w.WriteString(strconv.FormatUint(uint64(p.At(i)), 10))
})
case schema.Type_Which_uint64:
p := capnp.UInt64List{List: l}
return writeListItemsN(func(i int) (int, error) {
return enc.w.WriteString(strconv.FormatUint(p.At(i), 10))
})
case schema.Type_Which_float32:
p := capnp.Float32List{List: l}
return writeListItemsN(func(i int) (int, error) {
return enc.w.WriteString(strconv.FormatFloat(float64(p.At(i)), 'g', -1, 32))
})
case schema.Type_Which_float64:
p := capnp.Float64List{List: l}
return writeListItemsN(func(i int) (int, error) {
return enc.w.WriteString(strconv.FormatFloat(p.At(i), 'g', -1, 64))
})
case schema.Type_Which_data:
p := capnp.DataList{List: l}
return writeListItemsN(func(i int) (int, error) {
s, err := p.At(i)
if err != nil {
return enc.w.WriteString("<error>")
}
buf := strquote.Append(nil, s)
return enc.w.Write(buf)
})
case schema.Type_Which_text:
p := capnp.TextList{List: l}
return writeListItemsN(func(i int) (int, error) {
s, err := p.BytesAt(i)
if err != nil {
return enc.w.WriteString("<error>")
}
buf := strquote.Append(nil, s)
return enc.w.Write(buf)
})
case schema.Type_Which_structType:
return writeListItems(func(i int) error {
return enc.marshalStruct(elem.StructType().TypeId(), l.Struct(i))
})
case schema.Type_Which_list:
enc.w.WriteByte('[')
ee, err := elem.List().ElementType()
if err != nil {
return err
}
for i := 0; i < l.Len(); i++ {
if i > 0 {
enc.w.WriteString(", ")
}
return writeListItems(func(i int) error {
p, err := capnp.PointerList{List: l}.PtrAt(i)
if err != nil {
return err
}
err = enc.marshalList(ee, p.List())
if err != nil {
return err
}
}
enc.w.WriteByte(']')
return enc.marshalList(ee, p.List())
})
case schema.Type_Which_enum:
enc.w.WriteByte('[')
il := capnp.UInt16List{List: l}
typ := elem.Enum().TypeId()
// TODO(light): only search for node once
for i := 0; i < il.Len(); i++ {
if i > 0 {
enc.w.WriteString(", ")
}
enc.marshalEnum(typ, il.At(i))
}
enc.w.WriteByte(']')
return writeListItems(func(i int) error {
return enc.marshalEnum(typ, il.At(i))
})
case schema.Type_Which_interface:
enc.w.WriteByte('[')
for i := 0; i < l.Len(); i++ {
if i > 0 {
enc.w.WriteString(", ")
}
enc.w.WriteString(interfaceMarker)
}
enc.w.WriteByte(']')
return writeListItemsN(func(_ int) (int, error) {
return enc.w.WriteString(interfaceMarker)
})
case schema.Type_Which_anyPointer:
enc.w.WriteByte('[')
for i := 0; i < l.Len(); i++ {
if i > 0 {
enc.w.WriteString(", ")
}
enc.w.WriteString(anyPointerMarker)
}
enc.w.WriteByte(']')
return writeListItemsN(func(_ int) (int, error) {
return enc.w.WriteString(anyPointerMarker)
})
default:
return fmt.Errorf("unknown list type %v", elem.Which())
}
return nil
}
func (enc *Encoder) marshalEnum(typ uint64, val uint16) error {
@ -419,37 +487,96 @@ func (enc *Encoder) marshalEnum(typ uint64, val uint16) error {
return nil
}
type errWriter struct {
// indentWriter is helper for writing indented text
type indentWriter struct {
w io.Writer
err error
// indentPerLevel is a string to prepend to a line for every level of indentation.
indentPerLevel string
// current indent level
currentIndent int
// hasLineContent is true when we have written something on the current line.
hasLineContent bool
}
func (ew *errWriter) Write(p []byte) (int, error) {
if ew.err != nil {
return 0, ew.err
func (iw *indentWriter) beforeWrite() {
if iw.err != nil {
return
}
if len(iw.indentPerLevel) > 0 && !iw.hasLineContent {
iw.hasLineContent = true
for i := 0; i < iw.currentIndent; i++ {
_, err := iw.w.Write([]byte(iw.indentPerLevel))
if err != nil {
iw.err = err
return
}
}
}
}
func (iw *indentWriter) Write(p []byte) (int, error) {
iw.beforeWrite()
if iw.err != nil {
return 0, iw.err
}
var n int
n, ew.err = ew.w.Write(p)
return n, ew.err
n, iw.err = iw.w.Write(p)
return n, iw.err
}
func (ew *errWriter) WriteString(s string) (int, error) {
if ew.err != nil {
return 0, ew.err
func (iw *indentWriter) WriteString(s string) (int, error) {
iw.beforeWrite()
if iw.err != nil {
return 0, iw.err
}
var n int
n, ew.err = io.WriteString(ew.w, s)
return n, ew.err
n, iw.err = io.WriteString(iw.w, s)
return n, iw.err
}
func (ew *errWriter) WriteByte(b byte) error {
if ew.err != nil {
return ew.err
func (iw *indentWriter) WriteByte(b byte) error {
iw.beforeWrite()
if iw.err != nil {
return iw.err
}
if bw, ok := ew.w.(io.ByteWriter); ok {
ew.err = bw.WriteByte(b)
if bw, ok := iw.w.(io.ByteWriter); ok {
iw.err = bw.WriteByte(b)
} else {
_, ew.err = ew.w.Write([]byte{b})
_, iw.err = iw.w.Write([]byte{b})
}
return iw.err
}
func (iw *indentWriter) Indent() {
iw.currentIndent++
}
func (iw *indentWriter) Unindent() {
iw.currentIndent--
}
func (iw *indentWriter) NewLine() {
if len(iw.indentPerLevel) > 0 && iw.hasLineContent {
if iw.err != nil {
return
}
if bw, ok := iw.w.(io.ByteWriter); ok {
iw.err = bw.WriteByte('\n')
} else {
_, iw.err = iw.w.Write([]byte{'\n'})
}
iw.hasLineContent = false
}
}
func (iw *indentWriter) NewLineOrSpace() {
if len(iw.indentPerLevel) > 0 {
iw.NewLine()
} else {
iw.WriteByte(' ')
}
return ew.err
}

6
vendor/zombiezen.com/go/capnproto2/go.mod generated vendored
View File

@ -1,6 +0,0 @@
module "zombiezen.com/go/capnproto2"
require (
"github.com/kylelemons/godebug" v0.0.0-20170820004349-d65d576e9348
"golang.org/x/net" v0.0.0-20180218175443-cbe0f9307d01
)

8
vendor/zombiezen.com/go/capnproto2/go.sum generated vendored Normal file
View File

@ -0,0 +1,8 @@
github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0SNc=
github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
github.com/philhofer/fwd v1.0.0 h1:UbZqGr5Y38ApvM/V/jEljVxwocdweyH+vmYvRPBnbqQ=
github.com/philhofer/fwd v1.0.0/go.mod h1:gk3iGcWd9+svBvR0sR+KPcfE+RNWozjowpeBVG3ZVNU=
github.com/tinylib/msgp v1.1.0 h1:9fQd+ICuRIu/ue4vxJZu6/LzxN0HwMds2nq/0cFvxHU=
github.com/tinylib/msgp v1.1.0/go.mod h1:+d+yLhGm8mzTaHzB+wgMYrodPfmZrzkirds8fDWklFE=
golang.org/x/net v0.0.0-20180218175443-cbe0f9307d01 h1:po1f06KS05FvIQQA2pMuOWZAUXiy1KYdIf0ElUU2Hhc=
golang.org/x/net v0.0.0-20180218175443-cbe0f9307d01/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=

19
vendor/zombiezen.com/go/capnproto2/internal/packed/packed.go generated vendored
View File

@ -142,6 +142,9 @@ func Unpack(dst, src []byte) ([]byte, error) {
dst = allocWords(dst, int(src[0]))
src = src[1:]
n := copy(dst[start:], src)
if n < len(dst)-start {
return dst, io.ErrUnexpectedEOF
}
src = src[n:]
}
}
@ -281,22 +284,22 @@ func (r *Reader) ReadWord(p []byte) error {
switch tag {
case zeroTag:
z, err := r.rd.ReadByte()
if err != nil {
if err == io.EOF {
r.err = io.ErrUnexpectedEOF
return nil
} else if err != nil {
err = io.ErrUnexpectedEOF
}
r.err = err
return nil
return err
}
r.zeroes = int(z)
case unpackedTag:
l, err := r.rd.ReadByte()
if err != nil {
if err == io.EOF {
r.err = io.ErrUnexpectedEOF
return nil
} else if err != nil {
err = io.ErrUnexpectedEOF
}
r.err = err
return nil
return err
}
r.literal = int(l)
}

2
vendor/zombiezen.com/go/capnproto2/mem.go generated vendored
View File

@ -360,7 +360,7 @@ func (ssa *singleSegmentArena) Allocate(sz Size, segs map[SegmentID]*Segment) (S
if hasCapacity(data, sz) {
return 0, data, nil
}
inc, err := nextAlloc(int64(len(data)), int64(maxSegmentSize()), sz)
inc, err := nextAlloc(int64(cap(data)), int64(maxSegmentSize()), sz)
if err != nil {
return 0, nil, fmt.Errorf("capnp: alloc %d bytes: %v", sz, err)
}

2
vendor/zombiezen.com/go/capnproto2/schemas/schemas.go generated vendored
View File

@ -112,7 +112,7 @@ func (r *record) read() ([]byte, error) {
}
p := packed.NewReader(bufio.NewReader(z))
r.data, r.err = ioutil.ReadAll(p)
if err != nil {
if r.err != nil {
r.data = nil
return
}