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feat: add feature to show warning to user if they are already logged in #14219

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9 changes: 6 additions & 3 deletions cli/login.go
Original file line number Diff line number Diff line change
Expand Up @@ -151,9 +151,12 @@ func (r *RootCmd) login() *serpent.Command {
useTokenForSession bool
)
cmd := &serpent.Command{
Use: "login [<url>]",
Short: "Authenticate with Coder deployment",
Middleware: serpent.RequireRangeArgs(0, 1),
Use: "login [<url>]",
Short: "Authenticate with Coder deployment",
Middleware: serpent.Chain(
serpent.RequireRangeArgs(0, 1),
r.CheckExistingUserSession(),
),
Handler: func(inv *serpent.Invocation) error {
ctx := inv.Context()
rawURL := ""
Expand Down
44 changes: 44 additions & 0 deletions cli/login_test.go
Original file line number Diff line number Diff line change
Expand Up @@ -442,4 +442,48 @@ func TestLogin(t *testing.T) {
require.NoError(t, err)
require.Equal(t, selected, first.OrganizationID.String())
})

t.Run("ExistingUserValidTokenTTYWarnReloggin", func(t *testing.T) {
t.Parallel()
client := coderdtest.New(t, nil)
coderdtest.CreateFirstUser(t, client)

doneChan := make(chan struct{})
root, _ := clitest.New(t, "login", "--force-tty", client.URL.String(), "--no-open")
pty := ptytest.New(t).Attach(root)
go func() {
defer close(doneChan)
err := root.Run()
assert.NoError(t, err)
}()

pty.ExpectMatch(fmt.Sprintf("Attempting to authenticate with argument URL: '%s'", client.URL.String()))
pty.ExpectMatch("Paste your token here:")
pty.WriteLine(client.SessionToken())
if runtime.GOOS != "windows" {
// For some reason, the match does not show up on Windows.
pty.ExpectMatch(client.SessionToken())
}
pty.ExpectMatch("Welcome to Coder")
<-doneChan

doneChan = make(chan struct{})
root, _ = clitest.New(t, "login", "--force-tty", client.URL.String(), "--no-open")
pty = ptytest.New(t).Attach(root)
go func() {
defer close(doneChan)
err := root.Run()
assert.NoError(t, err)
}()
pty.ExpectMatch(fmt.Sprintf("You are already logged in to '%s'!", client.URL.String()))
pty.ExpectMatch(fmt.Sprintf("Attempting to authenticate with argument URL: '%s'", client.URL.String()))
pty.ExpectMatch("Paste your token here:")
pty.WriteLine(client.SessionToken())
if runtime.GOOS != "windows" {
// For some reason, the match does not show up on Windows.
pty.ExpectMatch(client.SessionToken())
}
pty.ExpectMatch("Welcome to Coder")
<-doneChan
})
}
44 changes: 44 additions & 0 deletions cli/root.go
Original file line number Diff line number Diff line change
Expand Up @@ -546,6 +546,50 @@ func (r *RootCmd) InitClient(client *codersdk.Client) serpent.MiddlewareFunc {
}
}

func (r *RootCmd) CheckExistingUserSession() serpent.MiddlewareFunc {
return func(next serpent.HandlerFunc) serpent.HandlerFunc {
return func(inv *serpent.Invocation) error {
conf := r.createConfig()
var err error
// Read the client URL stored on disk.
if r.clientURL == nil || r.clientURL.String() == "" {
rawURL, err := conf.URL().Read()
// If the configuration files are absent, the user is logged out
if os.IsNotExist(err) {
return next(inv)
}
if err != nil {
return err
}

r.clientURL, err = url.Parse(strings.TrimSpace(rawURL))
if err != nil {
return err
}
}
// Read the token stored on disk.
if r.token == "" {
r.token, err = conf.Session().Read()
// Even if there isn't a token, we don't care.
if err != nil && !os.IsNotExist(err) {
return next(inv)
}
}

// IF r.token and r.clientUR, exists then print warning "You are already logged in to $"
if r.token != "" && r.clientURL.String() != "" {
_, _ = fmt.Fprintf(inv.Stdout, Caret+"%s!\n", pretty.Sprint(cliui.DefaultStyles.Warn, "You are already logged in to "+r.clientURL.String()))
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I'm thinking about what we want to achieve with this warning. As it stands I imagine it will be slightly annoying to see the warning but not be able to do an action based on it.

Also, the token could be expired so then we're kind of lying to the user as they're not really logged in.

Should we move this from middleware and prompt the user for what to do instead (+ verify token is valid)? WDYT @matifali?

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Yes I agree 💯. Checking token for validity should be a must and if expired should instruct the user to relogin.

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Guys, give me a final rundown about what should I implement?

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I think for merge this should call the coder API to see what the current user is and print the username as well. If the request fails, any message should be suppressed.

This should also print to stderr rather than stdout.

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Noted

}

// We remove the token and clientURL from the RootCmd, so the user can still go ahead and login
r.clientURL = nil
r.token = ""

return next(inv)
}
}
}

// HeaderTransport creates a new transport that executes `--header-command`
// if it is set to add headers for all outbound requests.
func (r *RootCmd) HeaderTransport(ctx context.Context, serverURL *url.URL) (*codersdk.HeaderTransport, error) {
Expand Down
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