[feature] Refactor tokens, allow multiple app redirect_uris (#3849)

* [feature] Refactor tokens, allow multiple app redirect_uris

* move + tweak handlers a bit

* return error for unset oauth2.ClientStore funcs

* wrap UpdateToken with cache

* panic handling

* cheeky little time optimization

* unlock on error

4 files changed, 10 insertions, 60 deletions

diff --git a/internal/cache/cache.go b/internal/cache/cache.go
index 5771b4e95..e57fbb569 100644
--- a/internal/cache/cache.go
+++ b/internal/cache/cache.go
@@ -69,7 +69,6 @@ func (c *Caches) Init() {
 	c.initBlock()
 	c.initBlockIDs()
 	c.initBoostOfIDs()
-	c.initClient()
 	c.initConversation()
 	c.initConversationLastStatusIDs()
 	c.initDomainAllow()
@@ -161,7 +160,6 @@ func (c *Caches) Sweep(threshold float64) {
 	c.DB.Block.Trim(threshold)
 	c.DB.BlockIDs.Trim(threshold)
 	c.DB.BoostOfIDs.Trim(threshold)
-	c.DB.Client.Trim(threshold)
 	c.DB.Conversation.Trim(threshold)
 	c.DB.ConversationLastStatusIDs.Trim(threshold)
 	c.DB.Emoji.Trim(threshold)
diff --git a/internal/cache/db.go b/internal/cache/db.go
index 180d81907..695b19b8f 100644
--- a/internal/cache/db.go
+++ b/internal/cache/db.go
@@ -52,9 +52,6 @@ type DBCaches struct {
 	// BoostOfIDs provides access to the boost of IDs list database cache.
 	BoostOfIDs SliceCache[string]
 
-	// Client provides access to the gtsmodel Client database cache.
-	Client StructCache[*gtsmodel.Client]
-
 	// Conversation provides access to the gtsmodel Conversation database cache.
 	Conversation StructCache[*gtsmodel.Conversation]
 
@@ -489,32 +486,6 @@ func (c *Caches) initBoostOfIDs() {
 	c.DB.BoostOfIDs.Init(0, cap)
 }
 
-func (c *Caches) initClient() {
-	// Calculate maximum cache size.
-	cap := calculateResultCacheMax(
-		sizeofClient(), // model in-mem size.
-		config.GetCacheClientMemRatio(),
-	)
-
-	log.Infof(nil, "cache size = %d", cap)
-
-	copyF := func(c1 *gtsmodel.Client) *gtsmodel.Client {
-		c2 := new(gtsmodel.Client)
-		*c2 = *c1
-		return c2
-	}
-
-	c.DB.Client.Init(structr.CacheConfig[*gtsmodel.Client]{
-		Indices: []structr.IndexConfig{
-			{Fields: "ID"},
-		},
-		MaxSize:    cap,
-		IgnoreErr:  ignoreErrors,
-		Copy:       copyF,
-		Invalidate: c.OnInvalidateClient,
-	})
-}
-
 func (c *Caches) initConversation() {
 	cap := calculateResultCacheMax(
 		sizeofConversation(), // model in-mem size.
diff --git a/internal/cache/invalidate.go b/internal/cache/invalidate.go
index 555c73cd7..949238ec6 100644
--- a/internal/cache/invalidate.go
+++ b/internal/cache/invalidate.go
@@ -62,8 +62,7 @@ func (c *Caches) OnInvalidateAccount(account *gtsmodel.Account) {
 }
 
 func (c *Caches) OnInvalidateApplication(app *gtsmodel.Application) {
-	// Invalidate cached client of this application.
-	c.DB.Client.Invalidate("ID", app.ClientID)
+	// TODO: invalidate tokens?
 }
 
 func (c *Caches) OnInvalidateBlock(block *gtsmodel.Block) {
@@ -79,11 +78,6 @@ func (c *Caches) OnInvalidateBlock(block *gtsmodel.Block) {
 	c.DB.BlockIDs.Invalidate(block.AccountID)
 }
 
-func (c *Caches) OnInvalidateClient(client *gtsmodel.Client) {
-	// Invalidate any tokens under this client.
-	c.DB.Token.Invalidate("ClientID", client.ID)
-}
-
 func (c *Caches) OnInvalidateConversation(conversation *gtsmodel.Conversation) {
 	// Invalidate owning account's conversation list.
 	c.DB.ConversationLastStatusIDs.Invalidate(conversation.AccountID)
diff --git a/internal/cache/size.go b/internal/cache/size.go
index c96a3cd2e..1c8c5fe2e 100644
--- a/internal/cache/size.go
+++ b/internal/cache/size.go
@@ -302,15 +302,14 @@ func sizeofAccountStats() uintptr {
 
 func sizeofApplication() uintptr {
 	return uintptr(size.Of(&gtsmodel.Application{
-		ID:           exampleID,
-		CreatedAt:    exampleTime,
-		UpdatedAt:    exampleTime,
-		Name:         exampleUsername,
-		Website:      exampleURI,
-		RedirectURI:  exampleURI,
-		ClientID:     exampleID,
-		ClientSecret: exampleID,
-		Scopes:       exampleTextSmall,
+		ID:              exampleID,
+		Name:            exampleUsername,
+		Website:         exampleURI,
+		RedirectURIs:    []string{exampleURI},
+		ClientID:        exampleID,
+		ClientSecret:    exampleID,
+		Scopes:          exampleTextSmall,
+		ManagedByUserID: exampleID,
 	}))
 }
 
@@ -325,17 +324,6 @@ func sizeofBlock() uintptr {
 	}))
 }
 
-func sizeofClient() uintptr {
-	return uintptr(size.Of(&gtsmodel.Client{
-		ID:        exampleID,
-		CreatedAt: exampleTime,
-		UpdatedAt: exampleTime,
-		Secret:    exampleID,
-		Domain:    exampleURI,
-		UserID:    exampleID,
-	}))
-}
-
 func sizeofConversation() uintptr {
 	return uintptr(size.Of(&gtsmodel.Conversation{
 		ID:               exampleID,
@@ -752,8 +740,7 @@ func sizeofThreadMute() uintptr {
 func sizeofToken() uintptr {
 	return uintptr(size.Of(&gtsmodel.Token{
 		ID:                  exampleID,
-		CreatedAt:           exampleTime,
-		UpdatedAt:           exampleTime,
+		LastUsed:            exampleTime,
 		ClientID:            exampleID,
 		UserID:              exampleID,
 		RedirectURI:         exampleURI,