[feature] Enforce OAuth token scopes (#3835)

* move tokenauth to apiutil

* enforce scopes

* docs

* update test models, remove deprecated "follow"

* file header

* tests

* tweak scope matcher

* simplify...

* fix tests

* log user out of settings panel in case of oauth error

3 files changed, 20 insertions, 12 deletions

diff --git a/internal/api/client/media/mediacreate.go b/internal/api/client/media/mediacreate.go
index efe567f13..0f9de7b56 100644
--- a/internal/api/client/media/mediacreate.go
+++ b/internal/api/client/media/mediacreate.go
@@ -27,7 +27,6 @@ import (
 	apiutil "github.com/superseriousbusiness/gotosocial/internal/api/util"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
-	"github.com/superseriousbusiness/gotosocial/internal/oauth"
 )
 
 // MediaCreatePOSTHandler swagger:operation POST /api/{api_version}/media mediaCreate
@@ -102,9 +101,12 @@ func (m *Module) MediaCreatePOSTHandler(c *gin.Context) {
 		return
 	}
 
-	authed, err := oauth.Authed(c, true, true, true, true)
-	if err != nil {
-		apiutil.ErrorHandler(c, gtserror.NewErrorUnauthorized(err, err.Error()), m.processor.InstanceGetV1)
+	authed, errWithCode := apiutil.TokenAuth(c,
+		true, true, true, true,
+		apiutil.ScopeWriteMedia,
+	)
+	if errWithCode != nil {
+		apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
 		return
 	}
 
diff --git a/internal/api/client/media/mediaget.go b/internal/api/client/media/mediaget.go
index 8456f85d8..8428e202f 100644
--- a/internal/api/client/media/mediaget.go
+++ b/internal/api/client/media/mediaget.go
@@ -24,7 +24,6 @@ import (
 	"github.com/gin-gonic/gin"
 	apiutil "github.com/superseriousbusiness/gotosocial/internal/api/util"
 	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
-	"github.com/superseriousbusiness/gotosocial/internal/oauth"
 )
 
 // MediaGETHandler swagger:operation GET /api/v1/media/{id} mediaGet
@@ -74,9 +73,14 @@ func (m *Module) MediaGETHandler(c *gin.Context) {
 		return
 	}
 
-	authed, err := oauth.Authed(c, true, true, true, true)
-	if err != nil {
-		apiutil.ErrorHandler(c, gtserror.NewErrorUnauthorized(err, err.Error()), m.processor.InstanceGetV1)
+	authed, errWithCode := apiutil.TokenAuth(c,
+		true, true, true, true,
+		// This takes write even
+		// though it's a read.
+		apiutil.ScopeWriteMedia,
+	)
+	if errWithCode != nil {
+		apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
 		return
 	}
 
diff --git a/internal/api/client/media/mediaupdate.go b/internal/api/client/media/mediaupdate.go
index 0a9ce4eb8..b71b0c5f1 100644
--- a/internal/api/client/media/mediaupdate.go
+++ b/internal/api/client/media/mediaupdate.go
@@ -27,7 +27,6 @@ import (
 	apiutil "github.com/superseriousbusiness/gotosocial/internal/api/util"
 	"github.com/superseriousbusiness/gotosocial/internal/config"
 	"github.com/superseriousbusiness/gotosocial/internal/gtserror"
-	"github.com/superseriousbusiness/gotosocial/internal/oauth"
 )
 
 // MediaPUTHandler swagger:operation PUT /api/v1/media/{id} mediaUpdate
@@ -106,9 +105,12 @@ func (m *Module) MediaPUTHandler(c *gin.Context) {
 		return
 	}
 
-	authed, err := oauth.Authed(c, true, true, true, true)
-	if err != nil {
-		apiutil.ErrorHandler(c, gtserror.NewErrorUnauthorized(err, err.Error()), m.processor.InstanceGetV1)
+	authed, errWithCode := apiutil.TokenAuth(c,
+		true, true, true, true,
+		apiutil.ScopeWriteMedia,
+	)
+	if errWithCode != nil {
+		apiutil.ErrorHandler(c, errWithCode, m.processor.InstanceGetV1)
 		return
 	}