coder/cli/ssh_test.go

1612 lines
49 KiB
Go

package cli_test
import (
"bufio"
"bytes"
"context"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"errors"
"fmt"
"io"
"net"
"net/http"
"net/http/httptest"
"os"
"os/exec"
"path"
"path/filepath"
"runtime"
"strings"
"testing"
"time"
"github.com/google/uuid"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"golang.org/x/crypto/ssh"
gosshagent "golang.org/x/crypto/ssh/agent"
"golang.org/x/sync/errgroup"
"golang.org/x/xerrors"
"cdr.dev/slog"
"cdr.dev/slog/sloggers/slogtest"
"github.com/coder/coder/v2/agent"
"github.com/coder/coder/v2/agent/agentssh"
"github.com/coder/coder/v2/agent/agenttest"
"github.com/coder/coder/v2/cli/clitest"
"github.com/coder/coder/v2/cli/cliui"
"github.com/coder/coder/v2/coderd/coderdtest"
"github.com/coder/coder/v2/coderd/database"
"github.com/coder/coder/v2/coderd/database/dbfake"
"github.com/coder/coder/v2/coderd/database/dbtestutil"
"github.com/coder/coder/v2/coderd/rbac"
"github.com/coder/coder/v2/codersdk"
"github.com/coder/coder/v2/provisioner/echo"
"github.com/coder/coder/v2/provisionersdk/proto"
"github.com/coder/coder/v2/pty"
"github.com/coder/coder/v2/pty/ptytest"
"github.com/coder/coder/v2/testutil"
)
func setupWorkspaceForAgent(t *testing.T, mutations ...func([]*proto.Agent) []*proto.Agent) (*codersdk.Client, database.Workspace, string) {
t.Helper()
client, store := coderdtest.NewWithDatabase(t, nil)
client.SetLogger(slogtest.Make(t, nil).Named("client").Leveled(slog.LevelDebug))
first := coderdtest.CreateFirstUser(t, client)
userClient, user := coderdtest.CreateAnotherUser(t, client, first.OrganizationID)
r := dbfake.WorkspaceBuild(t, store, database.Workspace{
OrganizationID: first.OrganizationID,
OwnerID: user.ID,
}).WithAgent(mutations...).Do()
return userClient, r.Workspace, r.AgentToken
}
func TestSSH(t *testing.T) {
t.Parallel()
t.Run("ImmediateExit", func(t *testing.T) {
t.Parallel()
client, workspace, agentToken := setupWorkspaceForAgent(t)
inv, root := clitest.New(t, "ssh", workspace.Name)
clitest.SetupConfig(t, client, root)
pty := ptytest.New(t).Attach(inv)
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
defer cancel()
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.NoError(t, err)
})
pty.ExpectMatch("Waiting")
_ = agenttest.New(t, client.URL, agentToken)
coderdtest.AwaitWorkspaceAgents(t, client, workspace.ID)
// Shells on Mac, Windows, and Linux all exit shells with the "exit" command.
pty.WriteLine("exit")
<-cmdDone
})
t.Run("StartStoppedWorkspace", func(t *testing.T) {
t.Parallel()
authToken := uuid.NewString()
ownerClient := coderdtest.New(t, &coderdtest.Options{IncludeProvisionerDaemon: true})
owner := coderdtest.CreateFirstUser(t, ownerClient)
client, _ := coderdtest.CreateAnotherUser(t, ownerClient, owner.OrganizationID, rbac.RoleTemplateAdmin())
version := coderdtest.CreateTemplateVersion(t, client, owner.OrganizationID, &echo.Responses{
Parse: echo.ParseComplete,
ProvisionPlan: echo.PlanComplete,
ProvisionApply: echo.ProvisionApplyWithAgent(authToken),
})
coderdtest.AwaitTemplateVersionJobCompleted(t, client, version.ID)
template := coderdtest.CreateTemplate(t, client, owner.OrganizationID, version.ID)
workspace := coderdtest.CreateWorkspace(t, client, owner.OrganizationID, template.ID)
coderdtest.AwaitWorkspaceBuildJobCompleted(t, client, workspace.LatestBuild.ID)
// Stop the workspace
workspaceBuild := coderdtest.CreateWorkspaceBuild(t, client, workspace, database.WorkspaceTransitionStop)
coderdtest.AwaitWorkspaceBuildJobCompleted(t, client, workspaceBuild.ID)
// SSH to the workspace which should autostart it
inv, root := clitest.New(t, "ssh", workspace.Name)
clitest.SetupConfig(t, client, root)
pty := ptytest.New(t).Attach(inv)
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitSuperLong)
defer cancel()
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.NoError(t, err)
})
// Delay until workspace is starting, otherwise the agent may be
// booted due to outdated build.
var err error
for {
workspace, err = client.Workspace(ctx, workspace.ID)
require.NoError(t, err)
if workspace.LatestBuild.Transition == codersdk.WorkspaceTransitionStart {
break
}
time.Sleep(testutil.IntervalFast)
}
// When the agent connects, the workspace was started, and we should
// have access to the shell.
_ = agenttest.New(t, client.URL, authToken)
coderdtest.AwaitWorkspaceAgents(t, client, workspace.ID)
// Shells on Mac, Windows, and Linux all exit shells with the "exit" command.
pty.WriteLine("exit")
<-cmdDone
})
t.Run("RequireActiveVersion", func(t *testing.T) {
t.Parallel()
authToken := uuid.NewString()
ownerClient := coderdtest.New(t, &coderdtest.Options{IncludeProvisionerDaemon: true})
owner := coderdtest.CreateFirstUser(t, ownerClient)
client, _ := coderdtest.CreateAnotherUser(t, ownerClient, owner.OrganizationID, rbac.RoleMember())
echoResponses := &echo.Responses{
Parse: echo.ParseComplete,
ProvisionPlan: echo.PlanComplete,
ProvisionApply: echo.ProvisionApplyWithAgent(authToken),
}
version := coderdtest.CreateTemplateVersion(t, ownerClient, owner.OrganizationID, echoResponses)
coderdtest.AwaitTemplateVersionJobCompleted(t, ownerClient, version.ID)
template := coderdtest.CreateTemplate(t, ownerClient, owner.OrganizationID, version.ID)
workspace := coderdtest.CreateWorkspace(t, client, owner.OrganizationID, template.ID, func(cwr *codersdk.CreateWorkspaceRequest) {
cwr.AutomaticUpdates = codersdk.AutomaticUpdatesAlways
})
coderdtest.AwaitWorkspaceBuildJobCompleted(t, client, workspace.LatestBuild.ID)
// Stop the workspace
workspaceBuild := coderdtest.CreateWorkspaceBuild(t, client, workspace, database.WorkspaceTransitionStop)
coderdtest.AwaitWorkspaceBuildJobCompleted(t, client, workspaceBuild.ID)
// Update template version
authToken2 := uuid.NewString()
echoResponses2 := &echo.Responses{
Parse: echo.ParseComplete,
ProvisionPlan: echo.PlanComplete,
ProvisionApply: echo.ProvisionApplyWithAgent(authToken2),
}
version = coderdtest.UpdateTemplateVersion(t, ownerClient, owner.OrganizationID, echoResponses2, template.ID)
coderdtest.AwaitTemplateVersionJobCompleted(t, ownerClient, version.ID)
err := ownerClient.UpdateActiveTemplateVersion(context.Background(), template.ID, codersdk.UpdateActiveTemplateVersion{
ID: version.ID,
})
require.NoError(t, err)
// SSH to the workspace which should auto-update and autostart it
inv, root := clitest.New(t, "ssh", workspace.Name)
clitest.SetupConfig(t, client, root)
pty := ptytest.New(t).Attach(inv)
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
defer cancel()
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.NoError(t, err)
})
// When the agent connects, the workspace was started, and we should
// have access to the shell.
_ = agenttest.New(t, client.URL, authToken2)
coderdtest.AwaitWorkspaceAgents(t, client, workspace.ID)
// Shells on Mac, Windows, and Linux all exit shells with the "exit" command.
pty.WriteLine("exit")
<-cmdDone
// Double-check if workspace's template version is up-to-date
workspace, err = client.Workspace(context.Background(), workspace.ID)
require.NoError(t, err)
assert.Equal(t, version.ID, workspace.TemplateActiveVersionID)
assert.Equal(t, workspace.TemplateActiveVersionID, workspace.LatestBuild.TemplateVersionID)
assert.False(t, workspace.Outdated)
})
t.Run("ShowTroubleshootingURLAfterTimeout", func(t *testing.T) {
t.Parallel()
wantURL := "https://example.com/troubleshoot"
client, workspace, _ := setupWorkspaceForAgent(t, func(a []*proto.Agent) []*proto.Agent {
// Unfortunately, one second is the lowest
// we can go because 0 disables the feature.
a[0].ConnectionTimeoutSeconds = 1
a[0].TroubleshootingUrl = wantURL
return a
})
inv, root := clitest.New(t, "ssh", workspace.Name)
clitest.SetupConfig(t, client, root)
pty := ptytest.New(t)
inv.Stdin = pty.Input()
inv.Stderr = pty.Output()
inv.Stdout = pty.Output()
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
defer cancel()
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.ErrorIs(t, err, cliui.Canceled)
})
pty.ExpectMatch(wantURL)
cancel()
<-cmdDone
})
t.Run("ExitOnStop", func(t *testing.T) {
t.Parallel()
if runtime.GOOS == "windows" {
t.Skip("Windows doesn't seem to clean up the process, maybe #7100 will fix it")
}
store, ps := dbtestutil.NewDB(t)
client := coderdtest.New(t, &coderdtest.Options{Pubsub: ps, Database: store})
client.SetLogger(slogtest.Make(t, nil).Named("client").Leveled(slog.LevelDebug))
first := coderdtest.CreateFirstUser(t, client)
userClient, user := coderdtest.CreateAnotherUser(t, client, first.OrganizationID)
r := dbfake.WorkspaceBuild(t, store, database.Workspace{
OrganizationID: first.OrganizationID,
OwnerID: user.ID,
}).WithAgent().Do()
inv, root := clitest.New(t, "ssh", r.Workspace.Name)
clitest.SetupConfig(t, userClient, root)
pty := ptytest.New(t).Attach(inv)
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
defer cancel()
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.Error(t, err)
})
pty.ExpectMatch("Waiting")
_ = agenttest.New(t, client.URL, r.AgentToken)
coderdtest.AwaitWorkspaceAgents(t, client, r.Workspace.ID)
// Ensure the agent is connected.
pty.WriteLine("echo hell'o'")
pty.ExpectMatchContext(ctx, "hello")
_ = dbfake.WorkspaceBuild(t, store, r.Workspace).
Seed(database.WorkspaceBuild{
Transition: database.WorkspaceTransitionStop,
BuildNumber: 2,
}).
Pubsub(ps).Do()
t.Log("stopped workspace")
select {
case <-cmdDone:
case <-ctx.Done():
require.Fail(t, "command did not exit in time")
}
})
t.Run("Stdio", func(t *testing.T) {
t.Parallel()
client, workspace, agentToken := setupWorkspaceForAgent(t)
_, _ = tGoContext(t, func(ctx context.Context) {
// Run this async so the SSH command has to wait for
// the build and agent to connect!
_ = agenttest.New(t, client.URL, agentToken)
<-ctx.Done()
})
clientOutput, clientInput := io.Pipe()
serverOutput, serverInput := io.Pipe()
defer func() {
for _, c := range []io.Closer{clientOutput, clientInput, serverOutput, serverInput} {
_ = c.Close()
}
}()
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
defer cancel()
inv, root := clitest.New(t, "ssh", "--stdio", workspace.Name)
clitest.SetupConfig(t, client, root)
inv.Stdin = clientOutput
inv.Stdout = serverInput
inv.Stderr = io.Discard
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.NoError(t, err)
})
conn, channels, requests, err := ssh.NewClientConn(&stdioConn{
Reader: serverOutput,
Writer: clientInput,
}, "", &ssh.ClientConfig{
// #nosec
HostKeyCallback: ssh.InsecureIgnoreHostKey(),
})
require.NoError(t, err)
defer conn.Close()
sshClient := ssh.NewClient(conn, channels, requests)
session, err := sshClient.NewSession()
require.NoError(t, err)
defer session.Close()
command := "sh -c exit"
if runtime.GOOS == "windows" {
command = "cmd.exe /c exit"
}
err = session.Run(command)
require.NoError(t, err)
err = sshClient.Close()
require.NoError(t, err)
_ = clientOutput.Close()
<-cmdDone
})
t.Run("Stdio_StartStoppedWorkspace_CleanStdout", func(t *testing.T) {
t.Parallel()
authToken := uuid.NewString()
ownerClient := coderdtest.New(t, &coderdtest.Options{IncludeProvisionerDaemon: true})
owner := coderdtest.CreateFirstUser(t, ownerClient)
client, _ := coderdtest.CreateAnotherUser(t, ownerClient, owner.OrganizationID, rbac.RoleTemplateAdmin())
version := coderdtest.CreateTemplateVersion(t, client, owner.OrganizationID, &echo.Responses{
Parse: echo.ParseComplete,
ProvisionPlan: echo.PlanComplete,
ProvisionApply: echo.ProvisionApplyWithAgent(authToken),
})
coderdtest.AwaitTemplateVersionJobCompleted(t, client, version.ID)
template := coderdtest.CreateTemplate(t, client, owner.OrganizationID, version.ID)
workspace := coderdtest.CreateWorkspace(t, client, owner.OrganizationID, template.ID)
coderdtest.AwaitWorkspaceBuildJobCompleted(t, client, workspace.LatestBuild.ID)
// Stop the workspace
workspaceBuild := coderdtest.CreateWorkspaceBuild(t, client, workspace, database.WorkspaceTransitionStop)
coderdtest.AwaitWorkspaceBuildJobCompleted(t, client, workspaceBuild.ID)
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitSuperLong)
defer cancel()
clientStdinR, clientStdinW := io.Pipe()
// Here's a simple flowchart for how these pipes are used:
//
// flowchart LR
// A[ProxyCommand] --> B[captureProxyCommandStdoutW]
// B --> C[captureProxyCommandStdoutR]
// C --> VA[Validate output]
// C --> D[proxyCommandStdoutW]
// D --> E[proxyCommandStdoutR]
// E --> F[SSH Client]
proxyCommandStdoutR, proxyCommandStdoutW := io.Pipe()
captureProxyCommandStdoutR, captureProxyCommandStdoutW := io.Pipe()
closePipes := func() {
for _, c := range []io.Closer{clientStdinR, clientStdinW, proxyCommandStdoutR, proxyCommandStdoutW, captureProxyCommandStdoutR, captureProxyCommandStdoutW} {
_ = c.Close()
}
}
defer closePipes()
tGo(t, func() {
<-ctx.Done()
closePipes()
})
// Here we start a monitor for the output produced by the proxy command,
// which is read by the SSH client. This is done to validate that the
// output is clean.
proxyCommandOutputBuf := make(chan byte, 4096)
tGo(t, func() {
defer close(proxyCommandOutputBuf)
gotHeader := false
buf := bytes.Buffer{}
r := bufio.NewReader(captureProxyCommandStdoutR)
for {
b, err := r.ReadByte()
if err != nil {
if errors.Is(err, io.ErrClosedPipe) {
return
}
assert.NoError(t, err, "read byte failed")
return
}
if b == '\n' || b == '\r' {
out := buf.Bytes()
t.Logf("monitorServerOutput: %q (%#x)", out, out)
buf.Reset()
// Ideally we would do further verification, but that would
// involve parsing the SSH protocol to look for output that
// doesn't belong. This at least ensures that no garbage is
// being sent to the SSH client before trying to connect.
if !gotHeader {
gotHeader = true
assert.Equal(t, "SSH-2.0-Go", string(out), "invalid header")
}
} else {
_ = buf.WriteByte(b)
}
select {
case proxyCommandOutputBuf <- b:
case <-ctx.Done():
return
}
}
})
tGo(t, func() {
defer proxyCommandStdoutW.Close()
// Range closed by above goroutine.
for b := range proxyCommandOutputBuf {
_, err := proxyCommandStdoutW.Write([]byte{b})
if err != nil {
if errors.Is(err, io.ErrClosedPipe) {
return
}
assert.NoError(t, err, "write byte failed")
return
}
}
})
// Start the SSH stdio command.
inv, root := clitest.New(t, "ssh", "--stdio", workspace.Name)
clitest.SetupConfig(t, client, root)
inv.Stdin = clientStdinR
inv.Stdout = captureProxyCommandStdoutW
inv.Stderr = io.Discard
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.NoError(t, err)
})
// Delay until workspace is starting, otherwise the agent may be
// booted due to outdated build.
var err error
for {
workspace, err = client.Workspace(ctx, workspace.ID)
require.NoError(t, err)
if workspace.LatestBuild.Transition == codersdk.WorkspaceTransitionStart {
break
}
time.Sleep(testutil.IntervalFast)
}
// When the agent connects, the workspace was started, and we should
// have access to the shell.
_ = agenttest.New(t, client.URL, authToken)
conn, channels, requests, err := ssh.NewClientConn(&stdioConn{
Reader: proxyCommandStdoutR,
Writer: clientStdinW,
}, "", &ssh.ClientConfig{
// #nosec
HostKeyCallback: ssh.InsecureIgnoreHostKey(),
})
require.NoError(t, err)
defer conn.Close()
sshClient := ssh.NewClient(conn, channels, requests)
session, err := sshClient.NewSession()
require.NoError(t, err)
defer session.Close()
command := "sh -c exit"
if runtime.GOOS == "windows" {
command = "cmd.exe /c exit"
}
err = session.Run(command)
require.NoError(t, err)
err = sshClient.Close()
require.NoError(t, err)
_ = clientStdinR.Close()
<-cmdDone
})
t.Run("Stdio_RemoteForward_Signal", func(t *testing.T) {
t.Parallel()
client, workspace, agentToken := setupWorkspaceForAgent(t)
_, _ = tGoContext(t, func(ctx context.Context) {
// Run this async so the SSH command has to wait for
// the build and agent to connect!
_ = agenttest.New(t, client.URL, agentToken)
<-ctx.Done()
})
clientOutput, clientInput := io.Pipe()
serverOutput, serverInput := io.Pipe()
defer func() {
for _, c := range []io.Closer{clientOutput, clientInput, serverOutput, serverInput} {
_ = c.Close()
}
}()
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
defer cancel()
inv, root := clitest.New(t, "ssh", "--stdio", workspace.Name)
fsn := clitest.NewFakeSignalNotifier(t)
inv = inv.WithTestSignalNotifyContext(t, fsn.NotifyContext)
clitest.SetupConfig(t, client, root)
inv.Stdin = clientOutput
inv.Stdout = serverInput
inv.Stderr = io.Discard
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.NoError(t, err)
})
conn, channels, requests, err := ssh.NewClientConn(&stdioConn{
Reader: serverOutput,
Writer: clientInput,
}, "", &ssh.ClientConfig{
// #nosec
HostKeyCallback: ssh.InsecureIgnoreHostKey(),
})
require.NoError(t, err)
defer conn.Close()
sshClient := ssh.NewClient(conn, channels, requests)
tmpdir := tempDirUnixSocket(t)
remoteSock := path.Join(tmpdir, "remote.sock")
_, err = sshClient.ListenUnix(remoteSock)
require.NoError(t, err)
fsn.Notify()
<-cmdDone
fsn.AssertStopped()
require.Eventually(t, func() bool {
_, err = os.Stat(remoteSock)
return xerrors.Is(err, os.ErrNotExist)
}, testutil.WaitShort, testutil.IntervalFast)
})
t.Run("Stdio_BrokenConn", func(t *testing.T) {
t.Parallel()
client, workspace, agentToken := setupWorkspaceForAgent(t)
_, _ = tGoContext(t, func(ctx context.Context) {
// Run this async so the SSH command has to wait for
// the build and agent to connect!
_ = agenttest.New(t, client.URL, agentToken)
<-ctx.Done()
})
clientOutput, clientInput := io.Pipe()
serverOutput, serverInput := io.Pipe()
defer func() {
for _, c := range []io.Closer{clientOutput, clientInput, serverOutput, serverInput} {
_ = c.Close()
}
}()
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
defer cancel()
inv, root := clitest.New(t, "ssh", "--stdio", workspace.Name)
clitest.SetupConfig(t, client, root)
inv.Stdin = clientOutput
inv.Stdout = serverInput
inv.Stderr = io.Discard
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.NoError(t, err)
})
conn, channels, requests, err := ssh.NewClientConn(&stdioConn{
Reader: serverOutput,
Writer: clientInput,
}, "", &ssh.ClientConfig{
// #nosec
HostKeyCallback: ssh.InsecureIgnoreHostKey(),
})
require.NoError(t, err)
defer conn.Close()
sshClient := ssh.NewClient(conn, channels, requests)
_ = serverOutput.Close()
_ = clientInput.Close()
select {
case <-cmdDone:
// OK
case <-time.After(testutil.WaitShort):
t.Error("timeout waiting for command to exit")
}
_ = sshClient.Close()
})
// Test that we handle OS signals properly while remote forwarding, and don't just leave the TCP
// socket hanging.
t.Run("RemoteForward_Unix_Signal", func(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip("No unix sockets on windows")
}
t.Parallel()
ctx := testutil.Context(t, testutil.WaitSuperLong)
client, workspace, agentToken := setupWorkspaceForAgent(t)
_, _ = tGoContext(t, func(ctx context.Context) {
// Run this async so the SSH command has to wait for
// the build and agent to connect!
_ = agenttest.New(t, client.URL, agentToken)
<-ctx.Done()
})
tmpdir := tempDirUnixSocket(t)
localSock := filepath.Join(tmpdir, "local.sock")
l, err := net.Listen("unix", localSock)
require.NoError(t, err)
defer l.Close()
remoteSock := path.Join(tmpdir, "remote.sock")
for i := 0; i < 2; i++ {
t.Logf("connect %d of 2", i+1)
inv, root := clitest.New(t,
"ssh",
workspace.Name,
"--remote-forward",
remoteSock+":"+localSock,
)
fsn := clitest.NewFakeSignalNotifier(t)
inv = inv.WithTestSignalNotifyContext(t, fsn.NotifyContext)
inv.Stdout = io.Discard
inv.Stderr = io.Discard
clitest.SetupConfig(t, client, root)
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.Error(t, err)
})
// accept a single connection
msgs := make(chan string, 1)
go func() {
conn, err := l.Accept()
if !assert.NoError(t, err) {
return
}
msg, err := io.ReadAll(conn)
if !assert.NoError(t, err) {
return
}
msgs <- string(msg)
}()
// Unfortunately, there is a race in crypto/ssh where it sends the request to forward
// unix sockets before it is prepared to receive the response, meaning that even after
// the socket exists on the file system, the client might not be ready to accept the
// channel.
//
// https://cs.opensource.google/go/x/crypto/+/master:ssh/streamlocal.go;drc=2fc4c88bf43f0ea5ea305eae2b7af24b2cc93287;l=33
//
// To work around this, we attempt to send messages in a loop until one succeeds
success := make(chan struct{})
done := make(chan struct{})
go func() {
defer close(done)
var (
conn net.Conn
err error
)
for {
time.Sleep(testutil.IntervalMedium)
select {
case <-ctx.Done():
t.Error("timeout")
return
case <-success:
return
default:
// Ok
}
conn, err = net.Dial("unix", remoteSock)
if err != nil {
t.Logf("dial error: %s", err)
continue
}
_, err = conn.Write([]byte("test"))
if err != nil {
t.Logf("write error: %s", err)
}
err = conn.Close()
if err != nil {
t.Logf("close error: %s", err)
}
}
}()
msg := testutil.RequireRecvCtx(ctx, t, msgs)
require.Equal(t, "test", msg)
close(success)
fsn.Notify()
<-cmdDone
fsn.AssertStopped()
// wait for dial goroutine to complete
_ = testutil.RequireRecvCtx(ctx, t, done)
// wait for the remote socket to get cleaned up before retrying,
// because cleaning up the socket happens asynchronously, and we
// might connect to an old listener on the agent side.
require.Eventually(t, func() bool {
_, err = os.Stat(remoteSock)
return xerrors.Is(err, os.ErrNotExist)
}, testutil.WaitShort, testutil.IntervalFast)
}
})
t.Run("StdioExitOnStop", func(t *testing.T) {
t.Parallel()
if runtime.GOOS == "windows" {
t.Skip("Windows doesn't seem to clean up the process, maybe #7100 will fix it")
}
store, ps := dbtestutil.NewDB(t)
client := coderdtest.New(t, &coderdtest.Options{Pubsub: ps, Database: store})
client.SetLogger(slogtest.Make(t, nil).Named("client").Leveled(slog.LevelDebug))
first := coderdtest.CreateFirstUser(t, client)
userClient, user := coderdtest.CreateAnotherUser(t, client, first.OrganizationID)
r := dbfake.WorkspaceBuild(t, store, database.Workspace{
OrganizationID: first.OrganizationID,
OwnerID: user.ID,
}).WithAgent().Do()
_, _ = tGoContext(t, func(ctx context.Context) {
// Run this async so the SSH command has to wait for
// the build and agent to connect.
_ = agenttest.New(t, client.URL, r.AgentToken)
<-ctx.Done()
})
clientOutput, clientInput := io.Pipe()
serverOutput, serverInput := io.Pipe()
defer func() {
for _, c := range []io.Closer{clientOutput, clientInput, serverOutput, serverInput} {
_ = c.Close()
}
}()
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
defer cancel()
inv, root := clitest.New(t, "ssh", "--stdio", r.Workspace.Name)
clitest.SetupConfig(t, userClient, root)
inv.Stdin = clientOutput
inv.Stdout = serverInput
inv.Stderr = io.Discard
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.NoError(t, err)
})
conn, channels, requests, err := ssh.NewClientConn(&stdioConn{
Reader: serverOutput,
Writer: clientInput,
}, "", &ssh.ClientConfig{
// #nosec
HostKeyCallback: ssh.InsecureIgnoreHostKey(),
})
require.NoError(t, err)
defer conn.Close()
sshClient := ssh.NewClient(conn, channels, requests)
defer sshClient.Close()
session, err := sshClient.NewSession()
require.NoError(t, err)
defer session.Close()
err = session.Shell()
require.NoError(t, err)
_ = dbfake.WorkspaceBuild(t, store, r.Workspace).
Seed(database.WorkspaceBuild{
Transition: database.WorkspaceTransitionStop,
BuildNumber: 2,
}).
Pubsub(ps).
Do()
t.Log("stopped workspace")
select {
case <-cmdDone:
case <-ctx.Done():
require.Fail(t, "command did not exit in time")
}
})
t.Run("ForwardAgent", func(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip("Test not supported on windows")
}
t.Parallel()
client, workspace, agentToken := setupWorkspaceForAgent(t)
_ = agenttest.New(t, client.URL, agentToken)
coderdtest.AwaitWorkspaceAgents(t, client, workspace.ID)
// Generate private key.
privateKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
require.NoError(t, err)
kr := gosshagent.NewKeyring()
kr.Add(gosshagent.AddedKey{
PrivateKey: privateKey,
})
// Start up ssh agent listening on unix socket.
tmpdir := tempDirUnixSocket(t)
agentSock := filepath.Join(tmpdir, "agent.sock")
l, err := net.Listen("unix", agentSock)
require.NoError(t, err)
defer l.Close()
_ = tGo(t, func() {
for {
fd, err := l.Accept()
if err != nil {
if !errors.Is(err, net.ErrClosed) {
assert.NoError(t, err, "listener accept failed")
}
return
}
err = gosshagent.ServeAgent(kr, fd)
if !errors.Is(err, io.EOF) {
assert.NoError(t, err, "serve agent failed")
}
_ = fd.Close()
}
})
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
defer cancel()
inv, root := clitest.New(t,
"ssh",
workspace.Name,
"--forward-agent",
"--identity-agent", agentSock, // Overrides $SSH_AUTH_SOCK.
)
clitest.SetupConfig(t, client, root)
pty := ptytest.New(t).Attach(inv)
inv.Stderr = pty.Output()
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.NoError(t, err, "ssh command failed")
})
// Wait for the prompt or any output really to indicate the command has
// started and accepting input on stdin.
_ = pty.Peek(ctx, 1)
// Ensure that SSH_AUTH_SOCK is set.
// Linux: /tmp/auth-agent3167016167/listener.sock
// macOS: /var/folders/ng/m1q0wft14hj0t3rtjxrdnzsr0000gn/T/auth-agent3245553419/listener.sock
pty.WriteLine(`env | grep SSH_AUTH_SOCK=`)
pty.ExpectMatch("SSH_AUTH_SOCK=")
// Ensure that ssh-add lists our key.
pty.WriteLine("ssh-add -L")
keys, err := kr.List()
require.NoError(t, err, "list keys failed")
pty.ExpectMatch(keys[0].String())
// And we're done.
pty.WriteLine("exit")
<-cmdDone
})
t.Run("RemoteForward", func(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip("Test not supported on windows")
}
t.Parallel()
httpServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Write([]byte("hello world"))
}))
defer httpServer.Close()
client, workspace, agentToken := setupWorkspaceForAgent(t)
_ = agenttest.New(t, client.URL, agentToken)
coderdtest.AwaitWorkspaceAgents(t, client, workspace.ID)
inv, root := clitest.New(t,
"ssh",
workspace.Name,
"--remote-forward",
"8222:"+httpServer.Listener.Addr().String(),
)
clitest.SetupConfig(t, client, root)
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
defer cancel()
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
// fails because we cancel context to close
assert.Error(t, err, "ssh command should fail")
})
require.Eventually(t, func() bool {
req, err := http.NewRequestWithContext(ctx, http.MethodGet, "http://localhost:8222/", nil)
if !assert.NoError(t, err) {
// true exits the loop.
return true
}
resp, err := http.DefaultClient.Do(req)
if err != nil {
t.Logf("HTTP GET http://localhost:8222/ %s", err)
return false
}
defer resp.Body.Close()
body, err := io.ReadAll(resp.Body)
assert.NoError(t, err)
assert.EqualValues(t, "hello world", body)
return true
}, testutil.WaitLong, testutil.IntervalFast)
// And we're done.
cancel()
<-cmdDone
})
t.Run("Env", func(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip("Test not supported on windows")
}
t.Parallel()
client, workspace, agentToken := setupWorkspaceForAgent(t)
_ = agenttest.New(t, client.URL, agentToken)
coderdtest.AwaitWorkspaceAgents(t, client, workspace.ID)
inv, root := clitest.New(t,
"ssh",
workspace.Name,
"--env",
"foo=bar,baz=qux",
)
clitest.SetupConfig(t, client, root)
pty := ptytest.New(t).Attach(inv)
inv.Stderr = pty.Output()
// Wait super long so this doesn't flake on -race test.
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitSuperLong)
defer cancel()
w := clitest.StartWithWaiter(t, inv.WithContext(ctx))
defer w.Wait() // We don't care about any exit error (exit code 255: SSH connection ended unexpectedly).
// Since something was output, it should be safe to write input.
// This could show a prompt or "running startup scripts", so it's
// not indicative of the SSH connection being ready.
_ = pty.Peek(ctx, 1)
// Ensure the SSH connection is ready by testing the shell
// input/output.
pty.WriteLine("echo $foo $baz")
pty.ExpectMatchContext(ctx, "bar qux")
// And we're done.
pty.WriteLine("exit")
})
t.Run("RemoteForwardUnixSocket", func(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip("Test not supported on windows")
}
t.Parallel()
client, workspace, agentToken := setupWorkspaceForAgent(t)
_ = agenttest.New(t, client.URL, agentToken)
coderdtest.AwaitWorkspaceAgents(t, client, workspace.ID)
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
defer cancel()
tmpdir := tempDirUnixSocket(t)
localSock := filepath.Join(tmpdir, "local.sock")
l, err := net.Listen("unix", localSock)
require.NoError(t, err)
defer l.Close()
remoteSock := filepath.Join(tmpdir, "remote.sock")
inv, root := clitest.New(t,
"ssh",
workspace.Name,
"--remote-forward",
fmt.Sprintf("%s:%s", remoteSock, localSock),
)
clitest.SetupConfig(t, client, root)
pty := ptytest.New(t).Attach(inv)
inv.Stderr = pty.Output()
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.NoError(t, err, "ssh command failed")
})
// Wait for the prompt or any output really to indicate the command has
// started and accepting input on stdin.
_ = pty.Peek(ctx, 1)
// Download the test page
pty.WriteLine(fmt.Sprintf("ss -xl state listening src %s | wc -l", remoteSock))
pty.ExpectMatch("2")
// And we're done.
pty.WriteLine("exit")
<-cmdDone
})
// Test that we can forward a local unix socket to a remote unix socket and
// that new SSH sessions take over the socket without closing active socket
// connections.
t.Run("RemoteForwardUnixSocketMultipleSessionsOverwrite", func(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip("Test not supported on windows")
}
t.Parallel()
client, workspace, agentToken := setupWorkspaceForAgent(t)
_ = agenttest.New(t, client.URL, agentToken)
coderdtest.AwaitWorkspaceAgents(t, client, workspace.ID)
// Wait super super long so this doesn't flake on -race test.
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitSuperLong*2)
defer cancel()
tmpdir := tempDirUnixSocket(t)
localSock := filepath.Join(tmpdir, "local.sock")
l, err := net.Listen("unix", localSock)
require.NoError(t, err)
defer l.Close()
testutil.Go(t, func() {
for {
fd, err := l.Accept()
if err != nil {
if !errors.Is(err, net.ErrClosed) {
assert.NoError(t, err, "listener accept failed")
}
return
}
testutil.Go(t, func() {
defer fd.Close()
agentssh.Bicopy(ctx, fd, fd)
})
}
})
remoteSock := filepath.Join(tmpdir, "remote.sock")
var done []func() error
for i := 0; i < 2; i++ {
id := fmt.Sprintf("ssh-%d", i)
inv, root := clitest.New(t,
"ssh",
workspace.Name,
"--remote-forward",
fmt.Sprintf("%s:%s", remoteSock, localSock),
)
inv.Logger = inv.Logger.Named(id)
clitest.SetupConfig(t, client, root)
pty := ptytest.New(t).Attach(inv)
inv.Stderr = pty.Output()
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.NoError(t, err, "ssh command failed: %s", id)
})
// Since something was output, it should be safe to write input.
// This could show a prompt or "running startup scripts", so it's
// not indicative of the SSH connection being ready.
_ = pty.Peek(ctx, 1)
// Ensure the SSH connection is ready by testing the shell
// input/output.
pty.WriteLine("echo ping' 'pong")
pty.ExpectMatchContext(ctx, "ping pong")
d := &net.Dialer{}
fd, err := d.DialContext(ctx, "unix", remoteSock)
require.NoError(t, err, id)
// Ping / pong to ensure the socket is working.
_, err = fd.Write([]byte("hello world"))
require.NoError(t, err, id)
buf := make([]byte, 11)
_, err = fd.Read(buf)
require.NoError(t, err, id)
require.Equal(t, "hello world", string(buf), id)
done = append(done, func() error {
// Redo ping / pong to ensure that the socket
// connections still work.
_, err := fd.Write([]byte("hello world"))
assert.NoError(t, err, id)
buf := make([]byte, 11)
_, err = fd.Read(buf)
assert.NoError(t, err, id)
assert.Equal(t, "hello world", string(buf), id)
pty.WriteLine("exit")
<-cmdDone
return nil
})
}
var eg errgroup.Group
for _, d := range done {
eg.Go(d)
}
err = eg.Wait()
require.NoError(t, err)
})
// Test that we can remote forward multiple sockets, whether or not the
// local sockets exists at the time of establishing xthe SSH connection.
t.Run("RemoteForwardMultipleUnixSockets", func(t *testing.T) {
if runtime.GOOS == "windows" {
t.Skip("Test not supported on windows")
}
t.Parallel()
client, workspace, agentToken := setupWorkspaceForAgent(t)
_ = agenttest.New(t, client.URL, agentToken)
coderdtest.AwaitWorkspaceAgents(t, client, workspace.ID)
// Wait super long so this doesn't flake on -race test.
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitSuperLong)
defer cancel()
tmpdir := tempDirUnixSocket(t)
type testSocket struct {
local string
remote string
}
args := []string{"ssh", workspace.Name}
var sockets []testSocket
for i := 0; i < 2; i++ {
localSock := filepath.Join(tmpdir, fmt.Sprintf("local-%d.sock", i))
remoteSock := filepath.Join(tmpdir, fmt.Sprintf("remote-%d.sock", i))
sockets = append(sockets, testSocket{
local: localSock,
remote: remoteSock,
})
args = append(args, "--remote-forward", fmt.Sprintf("%s:%s", remoteSock, localSock))
}
inv, root := clitest.New(t, args...)
clitest.SetupConfig(t, client, root)
pty := ptytest.New(t).Attach(inv)
inv.Stderr = pty.Output()
w := clitest.StartWithWaiter(t, inv.WithContext(ctx))
defer w.Wait() // We don't care about any exit error (exit code 255: SSH connection ended unexpectedly).
// Since something was output, it should be safe to write input.
// This could show a prompt or "running startup scripts", so it's
// not indicative of the SSH connection being ready.
_ = pty.Peek(ctx, 1)
// Ensure the SSH connection is ready by testing the shell
// input/output.
pty.WriteLine("echo ping' 'pong")
pty.ExpectMatchContext(ctx, "ping pong")
for i, sock := range sockets {
i := i
// Start the listener on the "local machine".
l, err := net.Listen("unix", sock.local)
require.NoError(t, err)
defer l.Close() //nolint:revive // Defer is fine in this loop, we only run it twice.
testutil.Go(t, func() {
for {
fd, err := l.Accept()
if err != nil {
if !errors.Is(err, net.ErrClosed) {
assert.NoError(t, err, "listener accept failed", i)
}
return
}
testutil.Go(t, func() {
defer fd.Close()
agentssh.Bicopy(ctx, fd, fd)
})
}
})
// Dial the forwarded socket on the "remote machine".
d := &net.Dialer{}
fd, err := d.DialContext(ctx, "unix", sock.remote)
require.NoError(t, err, i)
defer fd.Close() //nolint:revive // Defer is fine in this loop, we only run it twice.
// Ping / pong to ensure the socket is working.
_, err = fd.Write([]byte("hello world"))
require.NoError(t, err, i)
buf := make([]byte, 11)
_, err = fd.Read(buf)
require.NoError(t, err, i)
require.Equal(t, "hello world", string(buf), i)
}
// And we're done.
pty.WriteLine("exit")
})
t.Run("FileLogging", func(t *testing.T) {
t.Parallel()
logDir := t.TempDir()
client, workspace, agentToken := setupWorkspaceForAgent(t)
inv, root := clitest.New(t, "ssh", "-l", logDir, workspace.Name)
clitest.SetupConfig(t, client, root)
pty := ptytest.New(t).Attach(inv)
w := clitest.StartWithWaiter(t, inv)
pty.ExpectMatch("Waiting")
agenttest.New(t, client.URL, agentToken)
coderdtest.AwaitWorkspaceAgents(t, client, workspace.ID)
// Shells on Mac, Windows, and Linux all exit shells with the "exit" command.
pty.WriteLine("exit")
w.RequireSuccess()
ents, err := os.ReadDir(logDir)
require.NoError(t, err)
require.Len(t, ents, 1, "expected one file in logdir %s", logDir)
})
}
//nolint:paralleltest // This test uses t.Setenv, parent test MUST NOT be parallel.
func TestSSH_ForwardGPG(t *testing.T) {
if runtime.GOOS == "windows" {
// While GPG forwarding from a Windows client works, we currently do
// not support forwarding to a Windows workspace. Our tests use the
// same platform for the "client" and "workspace" as they run in the
// same process.
t.Skip("Test not supported on windows")
}
if testing.Short() {
t.SkipNow()
}
// This key is for dean@coder.com.
const randPublicKeyFingerprint = "7BDFBA0CC7F5A96537C806C427BC6335EB5117F1"
const randPublicKey = `-----BEGIN PGP PUBLIC KEY BLOCK-----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=OxHv
-----END PGP PUBLIC KEY BLOCK-----`
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitLong)
defer cancel()
gpgPath, err := exec.LookPath("gpg")
if err != nil {
t.Skip("gpg not found")
}
gpgConfPath, err := exec.LookPath("gpgconf")
if err != nil {
t.Skip("gpgconf not found")
}
gpgAgentPath, err := exec.LookPath("gpg-agent")
if err != nil {
t.Skip("gpg-agent not found")
}
// Setup GPG home directory on the "client".
gnupgHomeClient := tempDirUnixSocket(t)
t.Setenv("GNUPGHOME", gnupgHomeClient)
// Get the agent extra socket path.
var (
stdout = bytes.NewBuffer(nil)
stderr = bytes.NewBuffer(nil)
)
c := exec.CommandContext(ctx, gpgConfPath, "--list-dir", "agent-extra-socket")
c.Stdout = stdout
c.Stderr = stderr
err = c.Run()
require.NoError(t, err, "get extra socket path failed: %s", stderr.String())
extraSocketPath := strings.TrimSpace(stdout.String())
// Generate private key non-interactively.
genKeyScript := `
Key-Type: 1
Key-Length: 2048
Subkey-Type: 1
Subkey-Length: 2048
Name-Real: Coder Test
Name-Email: test@coder.com
Expire-Date: 0
%no-protection
`
c = exec.CommandContext(ctx, gpgPath, "--batch", "--gen-key")
c.Stdin = strings.NewReader(genKeyScript)
out, err := c.CombinedOutput()
require.NoError(t, err, "generate key failed: %s", out)
// Import a random public key.
stdin := strings.NewReader(randPublicKey + "\n")
c = exec.CommandContext(ctx, gpgPath, "--import", "-")
c.Stdin = stdin
out, err = c.CombinedOutput()
require.NoError(t, err, "import key failed: %s", out)
// Set ultimate trust on imported key.
stdin = strings.NewReader(randPublicKeyFingerprint + ":6:\n")
c = exec.CommandContext(ctx, gpgPath, "--import-ownertrust")
c.Stdin = stdin
out, err = c.CombinedOutput()
require.NoError(t, err, "import ownertrust failed: %s", out)
// Start the GPG agent.
agentCmd := pty.CommandContext(ctx, gpgAgentPath, "--no-detach", "--extra-socket", extraSocketPath)
agentCmd.Env = append(agentCmd.Env, "GNUPGHOME="+gnupgHomeClient)
agentPTY, agentProc, err := pty.Start(agentCmd, pty.WithPTYOption(pty.WithGPGTTY()))
require.NoError(t, err, "launch agent failed")
defer func() {
_ = agentProc.Kill()
_ = agentPTY.Close()
}()
// Get the agent socket path in the "workspace".
gnupgHomeWorkspace := tempDirUnixSocket(t)
stdout = bytes.NewBuffer(nil)
stderr = bytes.NewBuffer(nil)
c = exec.CommandContext(ctx, gpgConfPath, "--list-dir", "agent-socket")
c.Env = append(c.Env, "GNUPGHOME="+gnupgHomeWorkspace)
c.Stdout = stdout
c.Stderr = stderr
err = c.Run()
require.NoError(t, err, "get agent socket path in workspace failed: %s", stderr.String())
workspaceAgentSocketPath := strings.TrimSpace(stdout.String())
require.NotEqual(t, extraSocketPath, workspaceAgentSocketPath, "socket path should be different")
client, workspace, agentToken := setupWorkspaceForAgent(t)
_ = agenttest.New(t, client.URL, agentToken, func(o *agent.Options) {
o.EnvironmentVariables = map[string]string{
"GNUPGHOME": gnupgHomeWorkspace,
}
})
coderdtest.AwaitWorkspaceAgents(t, client, workspace.ID)
inv, root := clitest.New(t,
"ssh",
workspace.Name,
"--forward-gpg",
)
clitest.SetupConfig(t, client, root)
tpty := ptytest.New(t)
inv.Stdin = tpty.Input()
inv.Stdout = tpty.Output()
inv.Stderr = tpty.Output()
cmdDone := tGo(t, func() {
err := inv.WithContext(ctx).Run()
assert.NoError(t, err, "ssh command failed")
})
// Prevent the test from hanging if the asserts below kill the test
// early. This will cause the command to exit with an error, which will
// let the t.Cleanup'd `<-done` inside of `tGo` exit and not hang.
// Without this, the test will hang forever on failure, preventing the
// real error from being printed.
t.Cleanup(cancel)
// Wait for the prompt or any output really to indicate the command has
// started and accepting input on stdin.
_ = tpty.Peek(ctx, 1)
tpty.WriteLine("echo hello 'world'")
tpty.ExpectMatch("hello world")
// Check the GNUPGHOME was correctly inherited via shell.
tpty.WriteLine("env && echo env-''-command-done")
match := tpty.ExpectMatch("env--command-done")
require.Contains(t, match, "GNUPGHOME="+gnupgHomeWorkspace, match)
// Get the agent extra socket path in the "workspace" via shell.
tpty.WriteLine("gpgconf --list-dir agent-socket && echo gpgconf-''-agentsocket-command-done")
tpty.ExpectMatch(workspaceAgentSocketPath)
tpty.ExpectMatch("gpgconf--agentsocket-command-done")
// List the keys in the "workspace".
tpty.WriteLine("gpg --list-keys && echo gpg-''-listkeys-command-done")
listKeysOutput := tpty.ExpectMatch("gpg--listkeys-command-done")
require.Contains(t, listKeysOutput, "[ultimate] Coder Test <test@coder.com>")
require.Contains(t, listKeysOutput, "[ultimate] Dean Sheather (work key) <dean@coder.com>")
// Try to sign something. This demonstrates that the forwarding is
// working as expected, since the workspace doesn't have access to the
// private key directly and must use the forwarded agent.
tpty.WriteLine("echo 'hello world' | gpg --clearsign && echo gpg-''-sign-command-done")
tpty.ExpectMatch("BEGIN PGP SIGNED MESSAGE")
tpty.ExpectMatch("Hash:")
tpty.ExpectMatch("hello world")
tpty.ExpectMatch("gpg--sign-command-done")
// And we're done.
tpty.WriteLine("exit")
<-cmdDone
}
// tGoContext runs fn in a goroutine passing a context that will be
// canceled on test completion and wait until fn has finished executing.
// Done and cancel are returned for optionally waiting until completion
// or early cancellation.
//
// NOTE(mafredri): This could be moved to a helper library.
func tGoContext(t *testing.T, fn func(context.Context)) (done <-chan struct{}, cancel context.CancelFunc) {
t.Helper()
ctx, cancel := context.WithCancel(context.Background())
doneC := make(chan struct{})
t.Cleanup(func() {
cancel()
<-done
})
go func() {
fn(ctx)
close(doneC)
}()
return doneC, cancel
}
// tGo runs fn in a goroutine and waits until fn has completed before
// test completion. Done is returned for optionally waiting for fn to
// exit.
//
// NOTE(mafredri): This could be moved to a helper library.
func tGo(t *testing.T, fn func()) (done <-chan struct{}) {
t.Helper()
doneC := make(chan struct{})
t.Cleanup(func() {
<-doneC
})
go func() {
fn()
close(doneC)
}()
return doneC
}
type stdioConn struct {
io.Reader
io.Writer
}
func (*stdioConn) Close() (err error) {
return nil
}
func (*stdioConn) LocalAddr() net.Addr {
return nil
}
func (*stdioConn) RemoteAddr() net.Addr {
return nil
}
func (*stdioConn) SetDeadline(_ time.Time) error {
return nil
}
func (*stdioConn) SetReadDeadline(_ time.Time) error {
return nil
}
func (*stdioConn) SetWriteDeadline(_ time.Time) error {
return nil
}
// tempDirUnixSocket returns a temporary directory that can safely hold unix
// sockets (probably).
//
// During tests on darwin we hit the max path length limit for unix sockets
// pretty easily in the default location, so this function uses /tmp instead to
// get shorter paths.
func tempDirUnixSocket(t *testing.T) string {
t.Helper()
if runtime.GOOS == "darwin" {
testName := strings.ReplaceAll(t.Name(), "/", "_")
dir, err := os.MkdirTemp("/tmp", fmt.Sprintf("coder-test-%s-", testName))
require.NoError(t, err, "create temp dir for gpg test")
t.Cleanup(func() {
err := os.RemoveAll(dir)
assert.NoError(t, err, "remove temp dir", dir)
})
return dir
}
return t.TempDir()
}