PLT-3745 - Deauthorize OAuth Apps (#3852)

* Deauthorize OAuth APIs

* Deautorize OAuth Apps Account Settings

* Fix typo in client method

* Fix issues found by PM

* Show help text only when there is at least one authorized app

store/sql_oauth_store.go

@@ -211,6 +211,29 @@ func (as SqlOAuthStore) GetApps() StoreChannel {
 	return storeChannel
 }
 
+func (as SqlOAuthStore) GetAuthorizedApps(userId string) StoreChannel {
+	storeChannel := make(StoreChannel)
+
+	go func() {
+		result := StoreResult{}
+
+		var apps []*model.OAuthApp
+
+		if _, err := as.GetReplica().Select(&apps,
+			`SELECT o.* FROM OAuthApps AS o INNER JOIN
+			Preferences AS p ON p.Name=o.Id AND p.UserId=:UserId`, map[string]interface{}{"UserId": userId}); err != nil {
+			result.Err = model.NewLocAppError("SqlOAuthStore.GetAuthorizedApps", "store.sql_oauth.get_apps.find.app_error", nil, "err="+err.Error())
+		}
+
+		result.Data = apps
+
+		storeChannel <- result
+		close(storeChannel)
+	}()
+
+	return storeChannel
+}
+
 func (as SqlOAuthStore) DeleteApp(id string) StoreChannel {
 	storeChannel := make(StoreChannel)
 
@@ -294,6 +317,33 @@ func (as SqlOAuthStore) GetAccessData(token string) StoreChannel {
 	return storeChannel
 }
 
+func (as SqlOAuthStore) GetAccessDataByUserForApp(userId, clientId string) StoreChannel {
+
+	storeChannel := make(StoreChannel)
+
+	go func() {
+		result := StoreResult{}
+
+		var accessData []*model.AccessData
+
+		if _, err := as.GetReplica().Select(&accessData,
+			"SELECT * FROM OAuthAccessData WHERE UserId = :UserId AND ClientId = :ClientId",
+			map[string]interface{}{"UserId": userId, "ClientId": clientId}); err != nil {
+			result.Err = model.NewLocAppError("SqlOAuthStore.GetAccessDataByUserForApp",
+				"store.sql_oauth.get_access_data_by_user_for_app.app_error", nil,
+				"user_id="+userId+" client_id="+clientId)
+		} else {
+			result.Data = accessData
+		}
+
+		storeChannel <- result
+		close(storeChannel)
+
+	}()
+
+	return storeChannel
+}
+
 func (as SqlOAuthStore) GetAccessDataByRefreshToken(token string) StoreChannel {
 
 	storeChannel := make(StoreChannel)