Use tailscale key types instead of strings (#1609)

* upgrade tailscale

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* make Node object use actualy tailscale key types

This commit changes the Node struct to have both a field for strings
to store the keys in the database and a dedicated Key for each type
of key.

The keys are populated and stored with Gorm hooks to ensure the data
is stored in the db.

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* use key types throughout the code

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* make sure machinekey is concistently used

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* use machine key in auth url

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* fix web register

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* use key type in notifier

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

* fix relogin with webauth

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

---------

Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>

hscontrol/mapper/tail_test.go

@@ -58,16 +58,36 @@ func TestTailNode(t *testing.T) {
 			pol:        &policy.ACLPolicy{},
 			dnsConfig:  &tailcfg.DNSConfig{},
 			baseDomain: "",
-			want:       nil,
-			wantErr:    true,
+			want: &tailcfg.Node{
+				StableID:          "0",
+				Addresses:         []netip.Prefix{},
+				AllowedIPs:        []netip.Prefix{},
+				DERP:              "127.3.3.40:0",
+				Hostinfo:          hiview(tailcfg.Hostinfo{}),
+				Tags:              []string{},
+				PrimaryRoutes:     []netip.Prefix{},
+				Online:            new(bool),
+				MachineAuthorized: true,
+				Capabilities: []tailcfg.NodeCapability{
+					"https://tailscale.com/cap/file-sharing", "https://tailscale.com/cap/is-admin",
+					"https://tailscale.com/cap/ssh", "debug-disable-upnp",
+				},
+			},
+			wantErr: false,
 		},
 		{
 			name: "minimal-node",
 			node: &types.Node{
-				ID:         0,
-				MachineKey: "mkey:f08305b4ee4250b95a70f3b7504d048d75d899993c624a26d422c67af0422507",
-				NodeKey:    "nodekey:9b2ffa7e08cc421a3d2cca9012280f6a236fd0de0b4ce005b30a98ad930306fe",
-				DiscoKey:   "discokey:cf7b0fd05da556fdc3bab365787b506fd82d64a70745db70e00e86c1b1c03084",
+				ID: 0,
+				MachineKey: mustMK(
+					"mkey:f08305b4ee4250b95a70f3b7504d048d75d899993c624a26d422c67af0422507",
+				),
+				NodeKey: mustNK(
+					"nodekey:9b2ffa7e08cc421a3d2cca9012280f6a236fd0de0b4ce005b30a98ad930306fe",
+				),
+				DiscoKey: mustDK(
+					"discokey:cf7b0fd05da556fdc3bab365787b506fd82d64a70745db70e00e86c1b1c03084",
+				),
 				IPAddresses: []netip.Addr{
 					netip.MustParseAddr("100.64.0.1"),
 				},
@@ -133,10 +153,9 @@ func TestTailNode(t *testing.T) {
 					netip.MustParsePrefix("0.0.0.0/0"),
 					netip.MustParsePrefix("192.168.0.0/24"),
 				},
-				Endpoints: []string{},
-				DERP:      "127.3.3.40:0",
-				Hostinfo:  hiview(tailcfg.Hostinfo{}),
-				Created:   created,
+				DERP:     "127.3.3.40:0",
+				Hostinfo: hiview(tailcfg.Hostinfo{}),
+				Created:  created,
 
 				Tags: []string{},