cmd/tailscale: add licenses link to web UI

The `tailscale web` UI is the primary interface for Synology and Home
Assistant users (and perhaps others), so is the logical place to put our
open source license notices.  I don't love adding things to what is
currently a very minimal UI, but I'm not sure of a better option.

Updates tailscale/corp#5780

Signed-off-by: Will Norris <will@tailscale.com>
pull/5605/head
Will Norris 2 years ago committed by Will Norris
parent 024257ef5a
commit f03a63910d

@ -19,24 +19,27 @@ var licensesCmd = &ffcli.Command{
Exec: runLicenses,
}
func runLicenses(ctx context.Context, args []string) error {
var licenseURL string
// licensesURL returns the absolute URL containing open source license information for the current platform.
func licensesURL() string {
switch runtime.GOOS {
case "android":
licenseURL = "https://tailscale.com/licenses/android"
return "https://tailscale.com/licenses/android"
case "darwin", "ios":
licenseURL = "https://tailscale.com/licenses/apple"
return "https://tailscale.com/licenses/apple"
case "windows":
licenseURL = "https://tailscale.com/licenses/windows"
return "https://tailscale.com/licenses/windows"
default:
licenseURL = "https://tailscale.com/licenses/tailscale"
return "https://tailscale.com/licenses/tailscale"
}
}
func runLicenses(ctx context.Context, args []string) error {
licenses := licensesURL()
outln(`
Tailscale wouldn't be possible without the contributions of thousands of open
source developers. To see the open source packages included in Tailscale and
their respective license information, visit:
` + licenseURL)
` + licenses)
return nil
}

@ -59,6 +59,7 @@ type tmplData struct {
IP string
AdvertiseExitNode bool
AdvertiseRoutes string
LicensesURL string
}
var webCmd = &ffcli.Command{
@ -392,6 +393,7 @@ func webHandler(w http.ResponseWriter, r *http.Request) {
Profile: profile,
Status: st.BackendState,
DeviceName: deviceName,
LicensesURL: licensesURL(),
}
exitNodeRouteV4 := netip.MustParsePrefix("0.0.0.0/0")
exitNodeRouteV6 := netip.MustParsePrefix("::/0")

@ -11,7 +11,7 @@
</head>
<body class="py-14">
<main class="container max-w-lg mx-auto py-6 px-8 bg-white rounded-md shadow-2xl" style="width: 95%">
<main class="container max-w-lg mx-auto mb-8 py-6 px-8 bg-white rounded-md shadow-2xl" style="width: 95%">
<header class="flex justify-between items-center min-width-0 py-2 mb-8">
<svg width="26" height="26" viewBox="0 0 23 23" title="Tailscale" fill="none" xmlns="http://www.w3.org/2000/svg"
class="flex-shrink-0 mr-4">
@ -100,6 +100,9 @@
</div>
{{ end }}
</main>
<footer class="container max-w-lg mx-auto text-center">
<a class="text-xs text-gray-500 hover:text-gray-600" href="{{ .LicensesURL }}">Open Source Licenses</a>
</footer>
<script>(function () {
const advertiseExitNode = {{.AdvertiseExitNode}};
let fetchingUrl = false;

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