headscale/apple_mobileconfig.go
Kristoffer Dalby 40c5263927
Add initial code for generating Apple profiles
This code adds new http handlers that will generate iOS and macOS
configuration profiles allowing us to override the Control server of the
official Tailscale.app.

Currently, macOS is working, as I have not found the correct "key" to
inject for iOS.

This means that a profile will allow users to no longer log in via the
command line, but they can use the app.
2021-09-19 17:54:41 +01:00

179 lines
4.4 KiB
Go

package headscale
import (
"bytes"
"net/http"
"text/template"
"github.com/gin-gonic/gin"
"github.com/gofrs/uuid"
)
// AppleMobileConfig shows a simple message in the browser to point to the CLI
// Listens in /register
func (h *Headscale) AppleMobileConfig(c *gin.Context) {
t := template.Must(template.New("apple").Parse(`
<html>
<body>
<h1>Apple configuration profiles</h1>
<p>
This page provides <a href="https://support.apple.com/guide/mdm/mdm-overview-mdmbf9e668/web">configuration profiles</a> for the official Tailscale clients for <a href="https://apps.apple.com/us/app/tailscale/id1470499037?ls=1">iOS</a> and <a href="https://apps.apple.com/ca/app/tailscale/id1475387142?mt=12">macOS</a>.
</p>
<p>
The profiles will configure Tailscale.app to use {{.Url}} as its control server.
</p>
<h3>Caution</h3>
<p>You should always inspect the profile before installing it:</p>
<p><code>curl {{.Url}}/apple/ios</code></p>
<p><code>curl {{.Url}}/apple/macos</code></p>
<h3>Profiles</h3>
<p>
<a href="/apple/ios" download="headscale_ios.mobileconfig">iOS</a>
</p>
<p>
<a href="/apple/macos" download="headscale_macos.mobileconfig">macOS</a>
</p>
</body>
</html>`))
config := map[string]interface{}{
"Url": h.cfg.ServerURL,
}
var payload bytes.Buffer
if err := t.Execute(&payload, config); err != nil {
c.Error(err)
return
}
c.Data(http.StatusOK, "text/html; charset=utf-8", payload.Bytes())
}
func (h *Headscale) ApplePlatformConfig(c *gin.Context) {
platform := c.Param("platform")
id, err := uuid.NewV4()
if err != nil {
c.Error(err)
return
}
contentId, err := uuid.NewV4()
if err != nil {
c.Error(err)
return
}
platformConfig := AppleMobilePlatformConfig{
UUID: contentId,
Url: h.cfg.ServerURL,
}
var payload bytes.Buffer
switch platform {
case "macos":
if err := macosTemplate.Execute(&payload, platformConfig); err != nil {
c.Error(err)
return
}
case "ios":
if err := iosTemplate.Execute(&payload, platformConfig); err != nil {
c.Error(err)
return
}
default:
c.Data(http.StatusOK, "text/html; charset=utf-8", []byte("Invalid platform, only ios and macos is supported"))
return
}
config := AppleMobileConfig{
UUID: id,
Url: h.cfg.ServerURL,
Payload: payload.String(),
}
var content bytes.Buffer
if err := commonTemplate.Execute(&content, config); err != nil {
c.Error(err)
return
}
c.Data(http.StatusOK, "application/x-apple-aspen-config; charset=utf-8", content.Bytes())
}
type AppleMobileConfig struct {
UUID uuid.UUID
Url string
Payload string
}
type AppleMobilePlatformConfig struct {
UUID uuid.UUID
Url string
}
var commonTemplate = template.Must(template.New("mobileconfig").Parse(`<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>PayloadUUID</key>
<string>{{.UUID}}</string>
<key>PayloadDisplayName</key>
<string>Headscale</string>
<key>PayloadDescription</key>
<string>Configure Tailscale login server to: {{.Url}}</string>
<key>PayloadIdentifier</key>
<string>com.github.juanfont.headscale</string>
<key>PayloadRemovalDisallowed</key>
<false/>
<key>PayloadType</key>
<string>Configuration</string>
<key>PayloadVersion</key>
<integer>1</integer>
<key>PayloadContent</key>
<array>
{{.Payload}}
</array>
</dict>
</plist>`))
var iosTemplate = template.Must(template.New("iosTemplate").Parse(`
<dict>
<key>PayloadType</key>
<string>io.tailscale.ipn.ios</string>
<key>PayloadUUID</key>
<string>{{.UUID}}</string>
<key>PayloadIdentifier</key>
<string>com.github.juanfont.headscale</string>
<key>PayloadVersion</key>
<integer>1</integer>
<key>PayloadEnabled</key>
<true/>
<key>ControlURL</key>
<string>{{.Url}}</string>
</dict>
`))
var macosTemplate = template.Must(template.New("macosTemplate").Parse(`
<dict>
<key>PayloadType</key>
<string>io.tailscale.ipn.macos</string>
<key>PayloadUUID</key>
<string>{{.UUID}}</string>
<key>PayloadIdentifier</key>
<string>com.github.juanfont.headscale</string>
<key>PayloadVersion</key>
<integer>1</integer>
<key>PayloadEnabled</key>
<true/>
<key>ControlURL</key>
<string>{{.Url}}</string>
</dict>
`))