package deletion import ( "fmt" "code.nonshy.com/nonshy/website/pkg/chat" "code.nonshy.com/nonshy/website/pkg/log" "code.nonshy.com/nonshy/website/pkg/models" "code.nonshy.com/nonshy/website/pkg/photo" ) // DeleteUser wipes a user and all associated data from the database. func DeleteUser(user *models.User) error { log.Error("BEGIN DeleteUser(%d, %s)", user.ID, user.Username) // Clear their history on the chat room. go func() { i, err := chat.EraseChatHistory(user.Username) if err != nil { log.Error("EraseChatHistory(%s): %s", user.Username, err) return } log.Error("DeleteUser(%s): Cleared chat DMs history for user (%d messages erased)", user.Username, i) }() // Remove all linked tables and assets. type remover struct { Step string Fn func(uint64) error } // Blank out the user's profile photo ID to avoid conflict removing their picture. user.RemoveProfilePhoto() // Tables to remove. In case of any unexpected DB errors, these tables are ordered // to remove the "safest" fields first. var todo = []remover{ {"Admin group memberships", DeleteAdminGroupUsers}, {"Disown User Forums", DisownForums}, {"Notifications", DeleteNotifications}, {"Likes", DeleteLikes}, {"Threads", DeleteForumThreads}, {"Comments", DeleteComments}, {"Subscriptions", DeleteSubscriptions}, {"Photos", DeleteUserPhotos}, {"Private Photo Grants", DeletePrivateGrants}, {"Certification Photo", DeleteCertification}, {"Who's Nearby Locations", DeleteUserLocation}, {"Comment Photos", DeleteUserCommentPhotos}, {"Messages", DeleteUserMessages}, {"Friends", DeleteFriends}, {"Blocks", DeleteBlocks}, {"Feedbacks", DeleteFeedbacks}, {"Two Factor", DeleteTwoFactor}, {"Profile Fields", DeleteProfile}, {"User Notes", DeleteUserNotes}, {"Change Logs", DeleteChangeLogs}, {"IP Addresses", DeleteIPAddresses}, {"Push Notifications", DeletePushNotifications}, {"Forum Memberships", DeleteForumMemberships}, {"Usage Statistics", DeleteUsageStatistics}, } for _, item := range todo { if err := item.Fn(user.ID); err != nil { return fmt.Errorf("%s: %s", item.Step, err) } } // Remove the user itself. return user.Delete() } // DeleteAdminGroupUsers scrubs data for deleting a user. func DeleteAdminGroupUsers(userID uint64) error { log.Error("DeleteUser: DeleteAdminGroupUsers(%d)", userID) result := models.DB.Exec( "DELETE FROM admin_group_users WHERE user_id = ?", userID, ) return result.Error } // DeleteUserPhotos scrubs data for deleting a user. func DeleteUserPhotos(userID uint64) error { log.Error("DeleteUser: BEGIN DeleteUserPhotos(%d)", userID) // Deeply scrub all user photos. pager := &models.Pagination{ Page: 1, PerPage: 20, Sort: "photos.id", } for { photos, err := models.PaginateUserPhotos( userID, models.UserGallery{ Visibility: models.PhotoVisibilityAll, }, pager, ) if err != nil { return err } if len(photos) == 0 { break } for _, item := range photos { log.Warn("DeleteUserPhotos(%d): remove file %s", userID, item.Filename) photo.Delete(item.Filename) if item.CroppedFilename != "" { log.Warn("DeleteUserPhotos(%d): remove file %s", userID, item.CroppedFilename) photo.Delete(item.CroppedFilename) } if err := item.Delete(); err != nil { return err } } } log.Error("DeleteUser: END DeleteUserPhotos(%d)", userID) return nil } // DeleteUserCommentPhotos scrubs data for deleting a user. func DeleteUserCommentPhotos(userID uint64) error { log.Error("DeleteUser: BEGIN DeleteUserCommentPhotos(%d)", userID) // Deeply scrub all user photos. pager := &models.Pagination{ Page: 1, PerPage: 20, Sort: "comment_photos.id", } for { photos, err := models.PaginateUserCommentPhotos( userID, pager, ) if err != nil { return err } if len(photos) == 0 { break } for _, item := range photos { log.Warn("DeleteUserCommentPhotos(%d): remove file %s", userID, item.Filename) photo.Delete(item.Filename) if err := item.Delete(); err != nil { return err } } } log.Error("DeleteUser: END DeleteUserPhotos(%d)", userID) return nil } // DeleteCertification scrubs data for deleting a user. func DeleteCertification(userID uint64) error { log.Error("DeleteUser: DeleteCertification(%d)", userID) if cert, err := models.GetCertificationPhoto(userID); err == nil { if cert.Filename != "" { log.Warn("DeleteCertification(%d): remove file %s", userID, cert.Filename) photo.Delete(cert.Filename) } return cert.Delete() } return nil } // DeleteTwoFactor scrubs data for deleting a user. func DeleteTwoFactor(userID uint64) error { log.Error("DeleteUser: DeleteTwoFactor(%d)", userID) result := models.DB.Where( "user_id = ?", userID, ).Delete(&models.TwoFactor{}) return result.Error } // DeleteUserLocation scrubs data for deleting a user. func DeleteUserLocation(userID uint64) error { log.Error("DeleteUser: DeleteUserLocation(%d)", userID) result := models.DB.Where( "user_id = ?", userID, ).Delete(&models.UserLocation{}) return result.Error } // DeleteUserMessages scrubs data for deleting a user. func DeleteUserMessages(userID uint64) error { log.Error("DeleteUser: DeleteUserMessages(%d)", userID) result := models.DB.Where( "source_user_id = ? OR target_user_id = ?", userID, userID, ).Delete(&models.Message{}) return result.Error } // DeleteFriends scrubs data for deleting a user. func DeleteFriends(userID uint64) error { log.Error("DeleteUser: DeleteUserFriends(%d)", userID) result := models.DB.Where( "source_user_id = ? OR target_user_id = ?", userID, userID, ).Delete(&models.Friend{}) return result.Error } // DeleteBlocks scrubs data for deleting a user. func DeleteBlocks(userID uint64) error { log.Error("DeleteUser: DeleteBlocks(%d)", userID) result := models.DB.Where( "source_user_id = ? OR target_user_id = ?", userID, userID, ).Delete(&models.Block{}) return result.Error } // DeleteFeedbacks scrubs data for deleting a user. func DeleteFeedbacks(userID uint64) error { log.Error("DeleteUser: DeleteFeedbacks(%d)", userID) result := models.DB.Where( "user_id = ? OR (table_name='users' AND table_id=?)", userID, userID, ).Delete(&models.Feedback{}) return result.Error } // DeletePrivateGrants scrubs data for deleting a user. func DeletePrivateGrants(userID uint64) error { log.Error("DeleteUser: DeletePrivateGrants(%d)", userID) result := models.DB.Where( "source_user_id = ? OR target_user_id = ?", userID, userID, ).Delete(&models.PrivatePhoto{}) return result.Error } // DeleteNotifications scrubs all notifications about a user. func DeleteNotifications(userID uint64) error { log.Error("DeleteUser: DeleteNotifications(%d)", userID) result := models.DB.Where( "user_id = ? OR about_user_id = ?", userID, userID, ).Delete(&models.Notification{}) return result.Error } // DeleteSubscriptions scrubs all notification subscriptions about a user. func DeleteSubscriptions(userID uint64) error { log.Error("DeleteUser: DeleteSubscriptions(%d)", userID) result := models.DB.Where( "user_id = ?", userID, ).Delete(&models.Subscription{}) return result.Error } // DeleteLikes scrubs all Likes about a user. func DeleteLikes(userID uint64) error { log.Error("DeleteUser: DeleteLikes(%d)", userID) result := models.DB.Where( "user_id = ? OR (table_name='users' AND table_id=?)", userID, userID, ).Delete(&models.Like{}) return result.Error } // DeleteProfile scrubs data for deleting a user. func DeleteProfile(userID uint64) error { log.Error("DeleteUser: DeleteProfile(%d)", userID) result := models.DB.Where( "user_id = ?", userID, ).Delete(&models.ProfileField{}) return result.Error } // DeleteForumThreads scrubs all forum threads started by the user. func DeleteForumThreads(userID uint64) error { log.Error("DeleteUser: DeleteForumThreads(%d)", userID) var threadIDs = []uint64{} result := models.DB.Table( "threads", ).Joins( "JOIN comments ON (threads.comment_id = comments.id)", ).Select( "distinct(threads.id) as id", ).Where( "comments.user_id = ?", userID, ).Scan(&threadIDs) if result.Error != nil { return fmt.Errorf("Couldn't list thread IDs created by user: %s", result.Error) } log.Warn("thread IDs to wipe: %+v", threadIDs) // Wipe all these threads and their comments. if len(threadIDs) > 0 { // First, delete the threads - so they won't be referring to comment_ids that we // delete next and causing errors to arise. result = models.DB.Where( "id IN ?", threadIDs, ).Delete(&models.Thread{}) if result.Error != nil { return fmt.Errorf("Couldn't delete your forum threads: %s", result.Error) } // Remove the comments. result = models.DB.Where( "table_name = ? AND table_id IN ?", "threads", threadIDs, ).Delete(&models.Comment{}) if result.Error != nil { return fmt.Errorf("Couldn't wipe threads of comments: %s", result.Error) } return result.Error } return nil } // DeleteComments deletes all comments by the user. func DeleteComments(userID uint64) error { log.Error("DeleteUser: DeleteComments(%d)", userID) result := models.DB.Where( "user_id = ?", userID, ).Delete(&models.Comment{}) return result.Error } // DeleteUserNotes scrubs data for deleting a user. func DeleteUserNotes(userID uint64) error { log.Error("DeleteUser: DeleteUserNotes(%d)", userID) result := models.DB.Where( "user_id = ? OR about_user_id = ?", userID, userID, ).Delete(&models.UserNote{}) return result.Error } // DeleteChangeLogs scrubs data for deleting a user. func DeleteChangeLogs(userID uint64) error { log.Error("DeleteUser: DeleteChangeLogs(%d)", userID) result := models.DB.Where( "about_user_id = ?", userID, ).Delete(&models.ChangeLog{}) return result.Error } // DeleteIPAddresses scrubs data for deleting a user. func DeleteIPAddresses(userID uint64) error { log.Error("DeleteUser: DeleteIPAddresses(%d)", userID) result := models.DB.Where( "user_id = ?", userID, ).Delete(&models.IPAddress{}) return result.Error } // DeletePushNotifications scrubs data for deleting a user. func DeletePushNotifications(userID uint64) error { log.Error("DeleteUser: DeletePushNotifications(%d)", userID) result := models.DB.Where( "user_id = ?", userID, ).Delete(&models.PushNotification{}) return result.Error } // DisownForums unlinks the user from their owned forums. func DisownForums(userID uint64) error { log.Error("DeleteUser: DisownForums(%d)", userID) result := models.DB.Exec(` UPDATE forums SET owner_id = NULL WHERE owner_id = ? `, userID) return result.Error } // DeleteForumMemberships scrubs data for deleting a user. func DeleteForumMemberships(userID uint64) error { log.Error("DeleteUser: DeleteForumMemberships(%d)", userID) result := models.DB.Where( "user_id = ?", userID, ).Delete(&models.ForumMembership{}) return result.Error } // DeleteUsageStatistics scrubs data for deleting a user. func DeleteUsageStatistics(userID uint64) error { log.Error("DeleteUser: DeleteUsageStatistics(%d)", userID) result := models.DB.Where( "user_id = ?", userID, ).Delete(&models.UsageStatistic{}) return result.Error }