github.com/xzl8028/xenia-server@v0.0.0-20190809101854-18450a97da63/store/sqlstore/file_info_store.go

// Copyright (c) 2015-present Xenia, Inc. All Rights Reserved.
// See License.txt for license information.

package sqlstore

import (
	"database/sql"
	"net/http"

	"github.com/xzl8028/xenia-server/einterfaces"
	"github.com/xzl8028/xenia-server/model"
	"github.com/xzl8028/xenia-server/store"
	"github.com/xzl8028/xenia-server/utils"
)

type SqlFileInfoStore struct {
	SqlStore
	metrics einterfaces.MetricsInterface
}

const (
	FILE_INFO_CACHE_SIZE = 25000
	FILE_INFO_CACHE_SEC  = 1800 // 30 minutes
)

var fileInfoCache *utils.Cache = utils.NewLru(FILE_INFO_CACHE_SIZE)

func (fs SqlFileInfoStore) ClearCaches() {
	fileInfoCache.Purge()
	if fs.metrics != nil {
		fs.metrics.IncrementMemCacheInvalidationCounter("File Info Cache - Purge")
	}
}

func NewSqlFileInfoStore(sqlStore SqlStore, metrics einterfaces.MetricsInterface) store.FileInfoStore {
	s := &SqlFileInfoStore{
		SqlStore: sqlStore,
		metrics:  metrics,
	}

	for _, db := range sqlStore.GetAllConns() {
		table := db.AddTableWithName(model.FileInfo{}, "FileInfo").SetKeys(false, "Id")
		table.ColMap("Id").SetMaxSize(26)
		table.ColMap("CreatorId").SetMaxSize(26)
		table.ColMap("PostId").SetMaxSize(26)
		table.ColMap("Path").SetMaxSize(512)
		table.ColMap("ThumbnailPath").SetMaxSize(512)
		table.ColMap("PreviewPath").SetMaxSize(512)
		table.ColMap("Name").SetMaxSize(256)
		table.ColMap("Extension").SetMaxSize(64)
		table.ColMap("MimeType").SetMaxSize(256)
	}

	return s
}

func (fs SqlFileInfoStore) CreateIndexesIfNotExists() {
	fs.CreateIndexIfNotExists("idx_fileinfo_update_at", "FileInfo", "UpdateAt")
	fs.CreateIndexIfNotExists("idx_fileinfo_create_at", "FileInfo", "CreateAt")
	fs.CreateIndexIfNotExists("idx_fileinfo_delete_at", "FileInfo", "DeleteAt")
	fs.CreateIndexIfNotExists("idx_fileinfo_postid_at", "FileInfo", "PostId")
}

func (fs SqlFileInfoStore) Save(info *model.FileInfo) (*model.FileInfo, *model.AppError) {
	info.PreSave()
	if err := info.IsValid(); err != nil {
		return nil, err
	}

	if err := fs.GetMaster().Insert(info); err != nil {
		return nil, model.NewAppError("SqlFileInfoStore.Save", "store.sql_file_info.save.app_error", nil, err.Error(), http.StatusInternalServerError)
	}
	return info, nil
}

func (fs SqlFileInfoStore) Get(id string) (*model.FileInfo, *model.AppError) {
	info := &model.FileInfo{}

	if err := fs.GetReplica().SelectOne(info,
		`SELECT
			*
		FROM
			FileInfo
		WHERE
			Id = :Id
			AND DeleteAt = 0`, map[string]interface{}{"Id": id}); err != nil {
		if err == sql.ErrNoRows {
			return nil, model.NewAppError("SqlFileInfoStore.Get", "store.sql_file_info.get.app_error", nil, "id="+id+", "+err.Error(), http.StatusNotFound)
		}
		return nil, model.NewAppError("SqlFileInfoStore.Get", "store.sql_file_info.get.app_error", nil, "id="+id+", "+err.Error(), http.StatusInternalServerError)
	}
	return info, nil
}

func (fs SqlFileInfoStore) GetByPath(path string) (*model.FileInfo, *model.AppError) {
	info := &model.FileInfo{}

	if err := fs.GetReplica().SelectOne(info,
		`SELECT
				*
			FROM
				FileInfo
			WHERE
				Path = :Path
				AND DeleteAt = 0
			LIMIT 1`, map[string]interface{}{"Path": path}); err != nil {
		return nil, model.NewAppError("SqlFileInfoStore.GetByPath", "store.sql_file_info.get_by_path.app_error", nil, "path="+path+", "+err.Error(), http.StatusInternalServerError)
	}
	return info, nil
}

func (fs SqlFileInfoStore) InvalidateFileInfosForPostCache(postId string) {
	fileInfoCache.Remove(postId)
	if fs.metrics != nil {
		fs.metrics.IncrementMemCacheInvalidationCounter("File Info Cache - Remove by PostId")
	}
}

func (fs SqlFileInfoStore) GetForPost(postId string, readFromMaster bool, allowFromCache bool) ([]*model.FileInfo, *model.AppError) {
	if allowFromCache {
		if cacheItem, ok := fileInfoCache.Get(postId); ok {
			if fs.metrics != nil {
				fs.metrics.IncrementMemCacheHitCounter("File Info Cache")
			}

			return cacheItem.([]*model.FileInfo), nil
		}
		if fs.metrics != nil {
			fs.metrics.IncrementMemCacheMissCounter("File Info Cache")
		}
	} else {
		if fs.metrics != nil {
			fs.metrics.IncrementMemCacheMissCounter("File Info Cache")
		}
	}

	var infos []*model.FileInfo

	dbmap := fs.GetReplica()

	if readFromMaster {
		dbmap = fs.GetMaster()
	}

	if _, err := dbmap.Select(&infos,
		`SELECT
				*
			FROM
				FileInfo
			WHERE
				PostId = :PostId
				AND DeleteAt = 0
			ORDER BY
				CreateAt`, map[string]interface{}{"PostId": postId}); err != nil {
		return nil, model.NewAppError("SqlFileInfoStore.GetForPost",
			"store.sql_file_info.get_for_post.app_error", nil, "post_id="+postId+", "+err.Error(), http.StatusInternalServerError)
	}
	if len(infos) > 0 {
		fileInfoCache.AddWithExpiresInSecs(postId, infos, FILE_INFO_CACHE_SEC)
	}

	return infos, nil
}

func (fs SqlFileInfoStore) GetForUser(userId string) ([]*model.FileInfo, *model.AppError) {
	var infos []*model.FileInfo

	dbmap := fs.GetReplica()

	if _, err := dbmap.Select(&infos,
		`SELECT
				*
			FROM
				FileInfo
			WHERE
				CreatorId = :CreatorId
				AND DeleteAt = 0
			ORDER BY
				CreateAt`, map[string]interface{}{"CreatorId": userId}); err != nil {
		return nil, model.NewAppError("SqlFileInfoStore.GetForPost",
			"store.sql_file_info.get_for_user_id.app_error", nil, "creator_id="+userId+", "+err.Error(), http.StatusInternalServerError)
	}
	return infos, nil
}

func (fs SqlFileInfoStore) AttachToPost(fileId, postId, creatorId string) *model.AppError {
	sqlResult, err := fs.GetMaster().Exec(
		`UPDATE
					FileInfo
				SET
					PostId = :PostId
				WHERE
					Id = :Id
					AND PostId = ''
					AND CreatorId = :CreatorId`, map[string]interface{}{"PostId": postId, "Id": fileId, "CreatorId": creatorId})
	if err != nil {
		return model.NewAppError("SqlFileInfoStore.AttachToPost",
			"store.sql_file_info.attach_to_post.app_error", nil, "post_id="+postId+", file_id="+fileId+", err="+err.Error(), http.StatusInternalServerError)
	}

	count, err := sqlResult.RowsAffected()
	if err != nil {
		// RowsAffected should never fail with the MySQL or Postgres drivers
		return model.NewAppError("SqlFileInfoStore.AttachToPost",
			"store.sql_file_info.attach_to_post.app_error", nil, "post_id="+postId+", file_id="+fileId+", err="+err.Error(), http.StatusInternalServerError)
	} else if count == 0 {
		// Could not attach the file to the post
		return model.NewAppError("SqlFileInfoStore.AttachToPost",
			"store.sql_file_info.attach_to_post.app_error", nil, "post_id="+postId+", file_id="+fileId, http.StatusBadRequest)
	}
	return nil
}

func (fs SqlFileInfoStore) DeleteForPost(postId string) (string, *model.AppError) {
	if _, err := fs.GetMaster().Exec(
		`UPDATE
				FileInfo
			SET
				DeleteAt = :DeleteAt
			WHERE
				PostId = :PostId`, map[string]interface{}{"DeleteAt": model.GetMillis(), "PostId": postId}); err != nil {
		return "", model.NewAppError("SqlFileInfoStore.DeleteForPost",
			"store.sql_file_info.delete_for_post.app_error", nil, "post_id="+postId+", err="+err.Error(), http.StatusInternalServerError)
	}
	return postId, nil
}

func (fs SqlFileInfoStore) PermanentDelete(fileId string) *model.AppError {
	if _, err := fs.GetMaster().Exec(
		`DELETE FROM
				FileInfo
			WHERE
				Id = :FileId`, map[string]interface{}{"FileId": fileId}); err != nil {
		return model.NewAppError("SqlFileInfoStore.PermanentDelete",
			"store.sql_file_info.permanent_delete.app_error", nil, "file_id="+fileId+", err="+err.Error(), http.StatusInternalServerError)
	}
	return nil
}

func (s SqlFileInfoStore) PermanentDeleteBatch(endTime int64, limit int64) (int64, *model.AppError) {
	var query string
	if s.DriverName() == "postgres" {
		query = "DELETE from FileInfo WHERE Id = any (array (SELECT Id FROM FileInfo WHERE CreateAt < :EndTime LIMIT :Limit))"
	} else {
		query = "DELETE from FileInfo WHERE CreateAt < :EndTime LIMIT :Limit"
	}

	sqlResult, err := s.GetMaster().Exec(query, map[string]interface{}{"EndTime": endTime, "Limit": limit})
	if err != nil {
		return 0, model.NewAppError("SqlFileInfoStore.PermanentDeleteBatch", "store.sql_file_info.permanent_delete_batch.app_error", nil, ""+err.Error(), http.StatusInternalServerError)
	}
	rowsAffected, err1 := sqlResult.RowsAffected()
	if err1 != nil {
		return 0, model.NewAppError("SqlFileInfoStore.PermanentDeleteBatch", "store.sql_file_info.permanent_delete_batch.app_error", nil, ""+err.Error(), http.StatusInternalServerError)
	}
	return rowsAffected, nil
}

func (s SqlFileInfoStore) PermanentDeleteByUser(userId string) (int64, *model.AppError) {
	query := "DELETE from FileInfo WHERE CreatorId = :CreatorId"

	sqlResult, err := s.GetMaster().Exec(query, map[string]interface{}{"CreatorId": userId})
	if err != nil {
		return 0, model.NewAppError("SqlFileInfoStore.PermanentDeleteByUser", "store.sql_file_info.PermanentDeleteByUser.app_error", nil, ""+err.Error(), http.StatusInternalServerError)
	}

	rowsAffected, err1 := sqlResult.RowsAffected()
	if err1 != nil {
		return 0, model.NewAppError("SqlFileInfoStore.PermanentDeleteByUser", "store.sql_file_info.PermanentDeleteByUser.app_error", nil, ""+err.Error(), http.StatusInternalServerError)
	}
	return rowsAffected, nil
}