Add new editor token generator

in order not to throw around Twitch tokens and have tokens expire

Signed-off-by: Knut Ahlers <knut@ahlers.me>

authBackends.go

@@ -13,7 +13,7 @@ import (
 
 const internalTokenAuthCacheExpiry = 5 * time.Minute
 
-func authBackendInternalToken(token string) (modules []string, expiresAt time.Time, err error) {
+func authBackendInternalAppToken(token string) (modules []string, expiresAt time.Time, err error) {
 	for _, auth := range config.AuthTokens {
 		if auth.validate(token) != nil {
 			continue
@@ -26,6 +26,22 @@ func authBackendInternalToken(token string) (modules []string, expiresAt time.Ti
 	return nil, time.Time{}, authcache.ErrUnauthorized
 }
 
+func authBackendInternalEditorToken(token string) ([]string, time.Time, error) {
+	id, user, expiresAt, err := editorTokenService.ValidateLoginToken(token)
+	if err != nil {
+		// None of our tokens: Nay.
+		return nil, time.Time{}, authcache.ErrUnauthorized
+	}
+
+	if !str.StringInSlice(user, config.BotEditors) && !str.StringInSlice(id, config.BotEditors) {
+		// That user is none of our editors: Deny access
+		return nil, time.Time{}, authcache.ErrUnauthorized
+	}
+
+	// Editors have full access: Return module "*"
+	return []string{"*"}, expiresAt, nil
+}
+
 func authBackendTwitchToken(token string) (modules []string, expiresAt time.Time, err error) {
 	tc := twitch.New(cfg.TwitchClient, cfg.TwitchClientSecret, token, "")
 

authMiddleware.go

@@ -66,8 +66,11 @@ func writeAuthMiddleware(h http.Handler, module string) http.Handler {
 			case strings.EqualFold(tokenType, "token"):
 				// This is perfect: `Authorization: Token tokenhere`
 
+			case strings.EqualFold(tokenType, "bearer"):
+				// This is perfect: `Authorization: Bearer tokenhere`
+
 			default:
-				// That was unexpected: `Authorization: Bearer tokenhere` or similar
+				// That was unexpected
 				http.Error(w, "invalid token type", http.StatusForbidden)
 				return
 			}

configEditor_global.go

@@ -8,6 +8,7 @@ import (
 
 	log "github.com/sirupsen/logrus"
 
+	"github.com/Luzifer/twitch-bot/v3/pkg/twitch"
 	"github.com/Luzifer/twitch-bot/v3/plugins"
 )
 
@@ -27,6 +28,15 @@ func registerEditorGlobalMethods() {
 			Path:         "/actions",
 			ResponseType: plugins.HTTPRouteResponseTypeJSON,
 		},
+		{
+			Description:  "Exchanges the Twitch token against an internal Bearer token",
+			HandlerFunc:  configEditorGlobalLogin,
+			Method:       http.MethodPost,
+			Module:       moduleConfigEditor,
+			Name:         "Authorize on Config-Editor",
+			Path:         "/login",
+			ResponseType: plugins.HTTPRouteResponseTypeJSON,
+		},
 		{
 			Description:  "Returns all available modules for auth",
 			HandlerFunc:  configEditorGlobalGetModules,
@@ -154,6 +164,37 @@ func configEditorGlobalGetUser(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+func configEditorGlobalLogin(w http.ResponseWriter, r *http.Request) {
+	var payload struct {
+		Token string `json:"token"`
+	}
+
+	if err := json.NewDecoder(r.Body).Decode(&payload); err != nil {
+		http.Error(w, err.Error(), http.StatusBadRequest)
+		return
+	}
+
+	tc := twitch.New(cfg.TwitchClient, cfg.TwitchClientSecret, payload.Token, "")
+	id, user, err := tc.GetAuthorizedUser(r.Context())
+	if err != nil {
+		http.Error(w, "access denied", http.StatusUnauthorized)
+		return
+	}
+
+	tok, expiresAt, err := editorTokenService.CreateLoginToken(id, user)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	if err := json.NewEncoder(w).Encode(map[string]any{
+		"expiresAt": expiresAt,
+		"token":     tok,
+	}); err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+	}
+}
+
 func configEditorGlobalSubscribe(w http.ResponseWriter, r *http.Request) {
 	conn, err := upgrader.Upgrade(w, r, nil)
 	if err != nil {

go.mod

@@ -15,6 +15,7 @@ require (
 	github.com/go-sql-driver/mysql v1.8.1
 	github.com/gofrs/uuid v4.4.0+incompatible
 	github.com/gofrs/uuid/v3 v3.1.2
+	github.com/golang-jwt/jwt/v5 v5.2.1
 	github.com/gorilla/mux v1.8.1
 	github.com/gorilla/websocket v1.5.1
 	github.com/itchyny/gojq v0.12.15

go.sum

@@ -4,8 +4,6 @@ filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
 filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
 github.com/Luzifer/go-openssl/v4 v4.2.2 h1:wKF/GhSKGJtHFQYTkN61wXig7mPvDj/oPpW6MmnBpjc=
 github.com/Luzifer/go-openssl/v4 v4.2.2/go.mod h1:+kAwI4NpyYXoWil85gKSCEJNoCQlMeFikEMn2f+5ffc=
-github.com/Luzifer/go_helpers/v2 v2.24.0 h1:abACOhsn6a6c6X22jq42mZM1wuOM0Ihfa6yzssrjrOg=
-github.com/Luzifer/go_helpers/v2 v2.24.0/go.mod h1:KSVUdAJAav5cWGyB5oKGxmC27HrKULVTOxwPS/Kr+pc=
 github.com/Luzifer/go_helpers/v2 v2.25.0 h1:k1J4gd1+BfuokTDoWgcgib9P5mdadjzKEgbtKSVe46k=
 github.com/Luzifer/go_helpers/v2 v2.25.0/go.mod h1:KSVUdAJAav5cWGyB5oKGxmC27HrKULVTOxwPS/Kr+pc=
 github.com/Luzifer/korvike/functions v1.0.1 h1:9O9PQL7O8J3nBwR4XLyx4COC430QbnvueM+itA2HEto=
@@ -34,8 +32,6 @@ github.com/cenkalti/backoff/v3 v3.2.2/go.mod h1:cIeZDE3IrqwwJl6VUwCN6trj1oXrTS4r
 github.com/cloudflare/circl v1.3.3/go.mod h1:5XYMA4rFBvNIrhs50XuiBJ15vF2pZn4nnUKZrLbUZFA=
 github.com/cloudflare/circl v1.3.8 h1:j+V8jJt09PoeMFIu2uh5JUyEaIHTXVOHslFoLNAKqwI=
 github.com/cloudflare/circl v1.3.8/go.mod h1:PDRU+oXvdD7KCtgKxW95M5Z8BpSCJXQORiZFnBQS5QU=
-github.com/cyphar/filepath-securejoin v0.2.4 h1:Ugdm7cg7i6ZK6x3xDF1oEu1nfkyfH53EtKeQYTC3kyg=
-github.com/cyphar/filepath-securejoin v0.2.4/go.mod h1:aPGpWjXOXUn2NCNjFvBE6aRxGGx79pTxQpKOJNYHHl4=
 github.com/cyphar/filepath-securejoin v0.2.5 h1:6iR5tXJ/e6tJZzzdMc1km3Sa7RRIVBKAK32O2s7AYfo=
 github.com/cyphar/filepath-securejoin v0.2.5/go.mod h1:aPGpWjXOXUn2NCNjFvBE6aRxGGx79pTxQpKOJNYHHl4=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
@@ -70,8 +66,6 @@ github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399 h1:eMj
 github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399/go.mod h1:1OCfN199q1Jm3HZlxleg+Dw/mwps2Wbk9frAWm+4FII=
 github.com/go-git/go-git/v5 v5.12.0 h1:7Md+ndsjrzZxbddRDZjF14qK+NN56sy6wkqaVrjZtys=
 github.com/go-git/go-git/v5 v5.12.0/go.mod h1:FTM9VKtnI2m65hNI/TenDDDnUf2Q9FHnXYjuz9i5OEY=
-github.com/go-jose/go-jose/v4 v4.0.1 h1:QVEPDE3OluqXBQZDcnNvQrInro2h0e4eqNbnZSWqS6U=
-github.com/go-jose/go-jose/v4 v4.0.1/go.mod h1:WVf9LFMHh/QVrmqrOfqun0C45tMe3RoiKJMPvgWwLfY=
 github.com/go-jose/go-jose/v4 v4.0.2 h1:R3l3kkBds16bO7ZFAEEcofK0MkrAJt3jlJznWZG0nvk=
 github.com/go-jose/go-jose/v4 v4.0.2/go.mod h1:WVf9LFMHh/QVrmqrOfqun0C45tMe3RoiKJMPvgWwLfY=
 github.com/go-sql-driver/mysql v1.7.0/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
@@ -83,6 +77,8 @@ github.com/gofrs/uuid v4.4.0+incompatible h1:3qXRTX8/NbyulANqlc0lchS1gqAVxRgsuW1
 github.com/gofrs/uuid v4.4.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/gofrs/uuid/v3 v3.1.2 h1:V3IBv1oU82x6YIr5txe3azVHgmOKYdyKQTowm9moBlY=
 github.com/gofrs/uuid/v3 v3.1.2/go.mod h1:xPwMqoocQ1L5G6pXX5BcE7N5jlzn2o19oqAKxwZW/kI=
+github.com/golang-jwt/jwt/v5 v5.2.1 h1:OuVbFODueb089Lh128TAcimifWaLhJwVflnrgM17wHk=
+github.com/golang-jwt/jwt/v5 v5.2.1/go.mod h1:pqrtFR0X4osieyHYxtmOUWsAWrfe1Q5UVIyoH402zdk=
 github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da h1:oI5xCqsCo564l8iNU+DwB5epxmsaqB+rhGL0m5jtYqE=
 github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
@@ -101,13 +97,10 @@ github.com/hashicorp/errwrap v1.1.0 h1:OxrOeh75EUXMY8TBjag2fzXGZ40LB6IKw45YeGUDY
 github.com/hashicorp/errwrap v1.1.0/go.mod h1:YH+1FKiLXxHSkmPseP+kNlulaMuP3n2brvKWEqk/Jc4=
 github.com/hashicorp/go-cleanhttp v0.5.2 h1:035FKYIWjmULyFRBKPs8TBQoi0x6d9G4xc9neXJWAZQ=
 github.com/hashicorp/go-cleanhttp v0.5.2/go.mod h1:kO/YDlP8L1346E6Sodw+PrpBSV4/SoxCXGY6BqNFT48=
-github.com/hashicorp/go-hclog v0.9.2/go.mod h1:5CU+agLiy3J7N7QjHK5d05KxGsuXiQLrjA0H7acj2lQ=
+github.com/hashicorp/go-hclog v1.6.3 h1:Qr2kF+eVWjTiYmU7Y31tYlP1h0q/X3Nl3tPGdaB11/k=
-github.com/hashicorp/go-hclog v1.6.2 h1:NOtoftovWkDheyUM/8JW3QMiXyxJK3uHRK7wV04nD2I=
+github.com/hashicorp/go-hclog v1.6.3/go.mod h1:W4Qnvbt70Wk/zYJryRzDRU/4r0kIg0PVHBcfoyhpF5M=
-github.com/hashicorp/go-hclog v1.6.2/go.mod h1:W4Qnvbt70Wk/zYJryRzDRU/4r0kIg0PVHBcfoyhpF5M=
 github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+lD48awMYo=
 github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
-github.com/hashicorp/go-retryablehttp v0.7.5 h1:bJj+Pj19UZMIweq/iie+1u5YCdGrnxCT9yvm0e+Nd5M=
-github.com/hashicorp/go-retryablehttp v0.7.5/go.mod h1:Jy/gPYAdjqffZ/yFGCFV2doI5wjtH1ewM9u8iYVjtX8=
 github.com/hashicorp/go-retryablehttp v0.7.6 h1:TwRYfx2z2C4cLbXmT8I5PgP/xmuqASDyiVuGYfs9GZM=
 github.com/hashicorp/go-retryablehttp v0.7.6/go.mod h1:pkQpWZeYWskR+D1tR2O5OcBFOxfA7DoAO6xtkuQnHTk=
 github.com/hashicorp/go-rootcerts v1.0.2 h1:jzhAVGtqPKbwpyCPELlgNWhE1znq+qwJtW5Oi2viEzc=
@@ -233,8 +226,6 @@ golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d/go.mod h1:IxCIyHEi3zRg3s0
 golang.org/x/crypto v0.3.0/go.mod h1:hebNnKkNXi2UzZN1eVRvBB7co0a+JxK6XbPiWVs/3J4=
 golang.org/x/crypto v0.3.1-0.20221117191849-2c476679df9a/go.mod h1:hebNnKkNXi2UzZN1eVRvBB7co0a+JxK6XbPiWVs/3J4=
 golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=
-golang.org/x/crypto v0.22.0 h1:g1v0xeRhjcugydODzvb3mEM9SQ0HGp9s/nh3COQ/C30=
-golang.org/x/crypto v0.22.0/go.mod h1:vr6Su+7cTlO45qkww3VDJlzDn0ctJvRgYbC2NvXHt+M=
 golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
 golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
@@ -248,12 +239,8 @@ golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug
 golang.org/x/net v0.2.0/go.mod h1:KqCZLdyyvdV855qA2rE3GC2aiw5xGR5TEjj8smXukLY=
 golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
-golang.org/x/net v0.24.0 h1:1PcaxkF854Fu3+lvBIx5SYn9wRlBzzcnHZSiaFFAb0w=
-golang.org/x/net v0.24.0/go.mod h1:2Q7sJY5mzlzWjKtYUEXSlBWCdyaioyXzRB2RtU8KVE8=
 golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac=
 golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
-golang.org/x/oauth2 v0.19.0 h1:9+E/EZBCbTLNrbN35fHv/a/d/mOBatymz1zbtQrXpIg=
-golang.org/x/oauth2 v0.19.0/go.mod h1:vYi7skDa1x015PmRRYZ7+s1cWyPgrPiSYRe4rnsexc8=
 golang.org/x/oauth2 v0.20.0 h1:4mQdhULixXKP1rwYBW0vAijoXnkTG0BLCDRzfe1idMo=
 golang.org/x/oauth2 v0.20.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -274,8 +261,6 @@ golang.org/x/sys v0.2.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.3.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
-golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
 golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
@@ -283,9 +268,8 @@ golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuX
 golang.org/x/term v0.2.0/go.mod h1:TVmDHMZPmdnySmBfhjOoOdhjzdE1h4u1VwSiw2l1Nuc=
 golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
 golang.org/x/term v0.6.0/go.mod h1:m6U89DPEgQRMq3DNkDClhWw02AUbt2daBVO4cn4Hv9U=
-golang.org/x/term v0.19.0 h1:+ThwsDv+tYfnJFhF4L8jITxu1tdTWRTZpdsWgEgjL6Q=
-golang.org/x/term v0.19.0/go.mod h1:2CuTdWZ7KHSQwUzKva0cbMg6q2DMI3Mmxp+gKJbskEk=
 golang.org/x/term v0.20.0 h1:VnkxpohqXaOBYJtBmEppKUG6mXpi+4O6purfc2+sMhw=
+golang.org/x/term v0.20.0/go.mod h1:8UkIAJTvZgivsXaD6/pH6U9ecQzZ45awqEOzuCvwpFY=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
@@ -293,8 +277,6 @@ golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
-golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
-golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
 golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/time v0.0.0-20220722155302-e5dcc9cfc0b9/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -333,15 +315,12 @@ gorm.io/gorm v1.25.10 h1:dQpO+33KalOA+aFYGlK+EfxcI5MbO7EP2yYygwh9h+s=
 gorm.io/gorm v1.25.10/go.mod h1:hbnx/Oo0ChWMn1BIhpy1oYozzpM15i4YPuHDmfYtwg8=
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 modernc.org/cc/v4 v4.21.0/go.mod h1:HM7VJTZbUCR3rV8EYBi9wxnJ0ZBRiGE5OeGXNA0IsLQ=
-modernc.org/ccgo/v4 v4.17.2 h1:rg8qg9Rxq7AtL29N0Ar5LyNmH/fQGV0LhphfcTJ5zRQ=
-modernc.org/ccgo/v4 v4.17.2/go.mod h1:1FCbAtWYJoKuc+AviS+dH+vGNtYmFJqBeRWjmnDWsIg=
 modernc.org/ccgo/v4 v4.17.3 h1:t2CQci84jnxKw3GGnHvjGKjiNZeZqyQx/023spkk4hU=
+modernc.org/ccgo/v4 v4.17.3/go.mod h1:1FCbAtWYJoKuc+AviS+dH+vGNtYmFJqBeRWjmnDWsIg=
 modernc.org/fileutil v1.3.0 h1:gQ5SIzK3H9kdfai/5x41oQiKValumqNTDXMvKo62HvE=
 modernc.org/fileutil v1.3.0/go.mod h1:XatxS8fZi3pS8/hKG2GH/ArUogfxjpEKs3Ku3aK4JyQ=
 modernc.org/gc/v2 v2.4.1 h1:9cNzOqPyMJBvrUipmynX0ZohMhcxPtMccYgGOJdOiBw=
 modernc.org/gc/v2 v2.4.1/go.mod h1:wzN5dK1AzVGoH6XOzc3YZ+ey/jPgYHLuVckd62P0GYU=
-modernc.org/libc v1.50.3 h1:rxS4sOeGFzwiuDShZh0agxIRJnan/8vLsBomE50+OT4=
-modernc.org/libc v1.50.3/go.mod h1:ZkNjeLQOsIbpUQhrp7H6dQVuxXPsCZKjTb0/nE/jQjU=
 modernc.org/libc v1.50.5 h1:ZzeUd0dIc/sUtoPTCYIrgypkuzoGzNu6kbEWj2VuEmk=
 modernc.org/libc v1.50.5/go.mod h1:rhzrUx5oePTSTIzBgM0mTftwWHK8tiT9aNFUt1mldl0=
 modernc.org/mathutil v1.6.0 h1:fRe9+AmYlaej+64JsEEhoWuAYBkOtQiMEU7n/XgfYi4=
@@ -352,8 +331,6 @@ modernc.org/opt v0.1.3 h1:3XOZf2yznlhC+ibLltsDGzABUGVx8J6pnFMS3E4dcq4=
 modernc.org/opt v0.1.3/go.mod h1:WdSiB5evDcignE70guQKxYUl14mgWtbClRi5wmkkTX0=
 modernc.org/sortutil v1.2.0 h1:jQiD3PfS2REGJNzNCMMaLSp/wdMNieTbKX920Cqdgqc=
 modernc.org/sortutil v1.2.0/go.mod h1:TKU2s7kJMf1AE84OoiGppNHJwvB753OYfNl2WRb++Ss=
-modernc.org/sqlite v1.29.8 h1:nGKglNx9K5v0As+zF0/Gcl1kMkmaU1XynYyq92PbsC8=
-modernc.org/sqlite v1.29.8/go.mod h1:lQPm27iqa4UNZpmr4Aor0MH0HkCLbt1huYDfWylLZFk=
 modernc.org/sqlite v1.29.9 h1:9RhNMklxJs+1596GNuAX+O/6040bvOwacTxuFcRuQow=
 modernc.org/sqlite v1.29.9/go.mod h1:ItX2a1OVGgNsFh6Dv60JQvGfJfTPHPVpV6DF59akYOA=
 modernc.org/strutil v1.2.0 h1:agBi9dp1I+eOnxXeiZawM8F4LawKv4NzGWSaLfyeNZA=

internal/service/editortoken/editortoken.go

@@ -0,0 +1,135 @@
+// Package editortoken utilizes JWT to create / validate a token for
+// the frontend
+package editortoken
+
+import (
+	"crypto/ed25519"
+	"crypto/rand"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/Luzifer/twitch-bot/v3/pkg/database"
+	"github.com/golang-jwt/jwt/v5"
+)
+
+const (
+	coreMetaSigningKey = "editortoken:signing-key"
+	tokenValidity      = 24 * time.Hour
+)
+
+type (
+	claims struct {
+		TwitchUser twitchUser `json:"twitchUser"`
+
+		jwt.RegisteredClaims
+	}
+
+	twitchUser struct {
+		ID   string `json:"id"`
+		Name string `json:"name"`
+	}
+
+	// Service manages the permission database
+	Service struct{ db database.Connector }
+)
+
+// New creates a new Service on the given database
+func New(db database.Connector) *Service {
+	return &Service{db}
+}
+
+// CreateLoginToken packs user-id and user name into a JWT, signs it
+// and returns the signed token
+func (s Service) CreateLoginToken(id, user string) (token string, expiresAt time.Time, err error) {
+	cl := claims{
+		TwitchUser: twitchUser{
+			ID:   id,
+			Name: user,
+		},
+		RegisteredClaims: jwt.RegisteredClaims{
+			Issuer:    "Twitch-Bot",
+			Subject:   id,
+			Audience:  []string{},
+			ExpiresAt: jwt.NewNumericDate(time.Now().Add(tokenValidity)),
+			NotBefore: jwt.NewNumericDate(time.Now()),
+			IssuedAt:  jwt.NewNumericDate(time.Now()),
+		},
+	}
+
+	tok := jwt.NewWithClaims(&jwt.SigningMethodEd25519{}, cl)
+
+	priv, err := s.getSigningKey()
+	if err != nil {
+		return "", expiresAt, fmt.Errorf("getting signing key: %w", err)
+	}
+
+	if token, err = tok.SignedString(priv); err != nil {
+		return "", expiresAt, fmt.Errorf("signing token: %w", err)
+	}
+
+	return token, cl.ExpiresAt.Time, nil
+}
+
+// ValidateLoginToken takes a token, validates it with the stored
+// key and returns the twitch-id and the user-name from the token
+func (s Service) ValidateLoginToken(token string) (id, user string, expiresAt time.Time, err error) {
+	var cl claims
+
+	tok, err := jwt.ParseWithClaims(token, &cl, func(*jwt.Token) (any, error) {
+		priv, err := s.getSigningKey()
+		if err != nil {
+			return nil, fmt.Errorf("getting private key: %w", err)
+		}
+
+		return priv.Public(), nil
+	})
+	if err != nil {
+		// Something went wrong when parsing & validating
+		return "", "", expiresAt, fmt.Errorf("validating token: %w", err)
+	}
+
+	if claims, ok := tok.Claims.(*claims); ok {
+		// We had no error and the claims are our claims
+		return claims.TwitchUser.ID, claims.TwitchUser.Name, claims.ExpiresAt.Time, nil
+	}
+
+	// We had no error but were not able to convert the claims
+	return "", "", expiresAt, fmt.Errorf("unknown claims type")
+}
+
+func (s Service) getSigningKey() (priv ed25519.PrivateKey, err error) {
+	err = s.db.ReadEncryptedCoreMeta(coreMetaSigningKey, &priv)
+	switch {
+	case err == nil:
+		// We read the previously generated key
+		return priv, nil
+
+	case errors.Is(err, database.ErrCoreMetaNotFound):
+		// We don't have a key yet or the key was wiped for some reason,
+		// we generate a new one which automatically is stored for later
+		// retrieval.
+		if priv, err = s.generateSigningKey(); err != nil {
+			return nil, fmt.Errorf("creating signing key: %w", err)
+		}
+
+		return priv, nil
+
+	default:
+		// Something went wrong, bail.
+		return nil, fmt.Errorf("reading signing key: %w", err)
+	}
+}
+
+func (s Service) generateSigningKey() (ed25519.PrivateKey, error) {
+	_, priv, err := ed25519.GenerateKey(rand.Reader)
+	if err != nil {
+		return nil, fmt.Errorf("generating key: %w", err)
+	}
+
+	if err = s.db.StoreEncryptedCoreMeta(coreMetaSigningKey, priv); err != nil {
+		return nil, fmt.Errorf("storing signing key: %w", err)
+	}
+
+	return priv, nil
+}

internal/service/editortoken/editortoken_test.go

@@ -0,0 +1,55 @@
+package editortoken
+
+import (
+	"crypto/ed25519"
+	"testing"
+	"time"
+
+	"github.com/Luzifer/twitch-bot/v3/pkg/database"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestCreateToken(t *testing.T) {
+	dbc := database.GetTestDatabase(t)
+	s := New(dbc)
+
+	// Fresh database, no key stored, the key should be generated and
+	// stored
+	pk1, err := s.getSigningKey()
+	require.NoError(t, err)
+	assert.IsType(t, ed25519.PrivateKey{}, pk1)
+
+	// Now database should contain key
+	var dbpk ed25519.PrivateKey
+	err = dbc.ReadCoreMeta(coreMetaSigningKey, &dbpk)
+	require.Error(t, err, "Key must not be readable with plain func")
+	err = dbc.ReadEncryptedCoreMeta(coreMetaSigningKey, &dbpk)
+	require.NoError(t, err)
+
+	// When fetching the key again it should be the same as before
+	pk2, err := s.getSigningKey()
+	require.NoError(t, err)
+	assert.Equal(t, pk1, pk2)
+	assert.Equal(t, dbpk, pk2)
+}
+
+func TestTokenFlow(t *testing.T) {
+	dbc := database.GetTestDatabase(t)
+	s := New(dbc)
+
+	var (
+		id   = "123456"
+		user = "example"
+	)
+
+	tok, expiresAt, err := s.CreateLoginToken(id, user)
+	require.NoError(t, err)
+	assert.True(t, expiresAt.After(time.Now().Add(tokenValidity-time.Minute)))
+
+	tid, tuser, texpiresAt, err := s.ValidateLoginToken(tok)
+	require.NoError(t, err)
+	assert.Equal(t, id, tid)
+	assert.Equal(t, user, tuser)
+	assert.Equal(t, expiresAt, texpiresAt)
+}

main.go

@@ -24,6 +24,7 @@ import (
 	"github.com/Luzifer/twitch-bot/v3/internal/helpers"
 	"github.com/Luzifer/twitch-bot/v3/internal/service/access"
 	"github.com/Luzifer/twitch-bot/v3/internal/service/authcache"
+	"github.com/Luzifer/twitch-bot/v3/internal/service/editortoken"
 	"github.com/Luzifer/twitch-bot/v3/internal/service/timer"
 	"github.com/Luzifer/twitch-bot/v3/pkg/database"
 	"github.com/Luzifer/twitch-bot/v3/pkg/twitch"
@@ -68,10 +69,11 @@ var (
 
 	runID = uuid.Must(uuid.NewV4()).String()
 
-	db            database.Connector
+	db                 database.Connector
-	accessService *access.Service
+	accessService      *access.Service
-	authService   *authcache.Service
+	authService        *authcache.Service
-	timerService  *timer.Service
+	editorTokenService *editortoken.Service
+	timerService       *timer.Service
 
 	twitchClient *twitch.Client
 
@@ -136,11 +138,13 @@ func main() {
 	}
 
 	authService = authcache.New(
-		authBackendInternalToken,
+		authBackendInternalAppToken,
+		authBackendInternalEditorToken,
 		authBackendTwitchToken,
 	)
 
 	cronService = cron.New(cron.WithSeconds())
+	editorTokenService = editortoken.New(db)
 
 	if timerService, err = timer.New(db, cronService); err != nil {
 		log.WithError(err).Fatal("applying timer migration")