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>
(cherry picked from commit f03a63910d)
This commit is contained in:
Will Norris 2022-09-09 12:14:08 -07:00 committed by Brad Fitzpatrick
parent a9818915a8
commit 22d5a8fda5
3 changed files with 16 additions and 8 deletions

View File

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

View File

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

View File

@ -11,7 +11,7 @@
</head> </head>
<body class="py-14"> <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"> <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" <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"> class="flex-shrink-0 mr-4">
@ -100,6 +100,9 @@
</div> </div>
{{ end }} {{ end }}
</main> </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 () { <script>(function () {
const advertiseExitNode = {{.AdvertiseExitNode}}; const advertiseExitNode = {{.AdvertiseExitNode}};
let fetchingUrl = false; let fetchingUrl = false;