memos/store/db/sqlite/attachment.go

302 lines
9.5 KiB
Go

package sqlite
import (
"context"
"database/sql"
"fmt"
"strings"
"github.com/pkg/errors"
"google.golang.org/protobuf/encoding/protojson"
"github.com/usememos/memos/internal/filter"
storepb "github.com/usememos/memos/proto/gen/store"
"github.com/usememos/memos/store"
)
func (d *DB) CreateAttachment(ctx context.Context, create *store.Attachment) (*store.Attachment, error) {
if create.Policy == nil {
return insertSQLiteAttachment(ctx, d.db, create)
}
if create.MemoID == nil || create.CreatorID != create.Policy.ActorUserID {
return nil, store.ErrMemoPermissionDenied
}
tx, err := d.db.BeginTx(ctx, nil)
if err != nil {
return nil, err
}
defer func() { _ = tx.Rollback() }()
if err := validateSQLiteMemoWritePolicy(ctx, tx, *create.MemoID, create.Policy, nil); err != nil {
return nil, err
}
attachment, err := insertSQLiteAttachment(ctx, tx, create)
if err != nil {
return nil, err
}
if err := tx.Commit(); err != nil {
return nil, err
}
return attachment, nil
}
func insertSQLiteAttachment(ctx context.Context, executor dbExecutor, create *store.Attachment) (*store.Attachment, error) {
fields := []string{"`uid`", "`filename`", "`blob`", "`type`", "`size`", "`creator_id`", "`memo_id`", "`storage_type`", "`reference`", "`payload`"}
placeholder := []string{"?", "?", "?", "?", "?", "?", "?", "?", "?", "?"}
storageType := ""
if create.StorageType != storepb.AttachmentStorageType_ATTACHMENT_STORAGE_TYPE_UNSPECIFIED {
storageType = create.StorageType.String()
}
payloadString := "{}"
if create.Payload != nil {
bytes, err := protojson.Marshal(create.Payload)
if err != nil {
return nil, errors.Wrap(err, "failed to marshal attachment payload")
}
payloadString = string(bytes)
}
args := []any{create.UID, create.Filename, create.Blob, create.Type, create.Size, create.CreatorID, create.MemoID, storageType, create.Reference, payloadString}
stmt := "INSERT INTO `attachment` (" + strings.Join(fields, ", ") + ") VALUES (" + strings.Join(placeholder, ", ") + ") RETURNING `id`, `created_ts`, `updated_ts`"
if err := executor.QueryRowContext(ctx, stmt, args...).Scan(&create.ID, &create.CreatedTs, &create.UpdatedTs); err != nil {
return nil, err
}
return create, nil
}
func (d *DB) ListAttachments(ctx context.Context, find *store.FindAttachment) ([]*store.Attachment, error) {
where, args := []string{"1 = 1"}, []any{}
if v := find.ID; v != nil {
where, args = append(where, "`attachment`.`id` = ?"), append(args, *v)
}
if v := find.UID; v != nil {
where, args = append(where, "`attachment`.`uid` = ?"), append(args, *v)
}
if v := find.CreatorID; v != nil {
where, args = append(where, "`attachment`.`creator_id` = ?"), append(args, *v)
}
if v := find.Filename; v != nil {
where, args = append(where, "`attachment`.`filename` = ?"), append(args, *v)
}
if v := find.FilenameSearch; v != nil {
where, args = append(where, "`attachment`.`filename` LIKE ?"), append(args, fmt.Sprintf("%%%s%%", *v))
}
if v := find.MemoID; v != nil {
where, args = append(where, "`attachment`.`memo_id` = ?"), append(args, *v)
}
if len(find.MemoIDList) > 0 {
placeholders := make([]string, 0, len(find.MemoIDList))
for range find.MemoIDList {
placeholders = append(placeholders, "?")
}
where = append(where, "`attachment`.`memo_id` IN ("+strings.Join(placeholders, ",")+")")
for _, id := range find.MemoIDList {
args = append(args, id)
}
}
if find.HasRelatedMemo {
where = append(where, "`attachment`.`memo_id` IS NOT NULL")
}
if len(find.Filters) > 0 {
engine, err := filter.DefaultAttachmentEngine()
if err != nil {
return nil, errors.Wrap(err, "failed to get filter engine")
}
if err := filter.AppendConditions(ctx, engine, find.Filters, filter.DialectSQLite, &where, &args); err != nil {
return nil, errors.Wrap(err, "failed to append filter conditions")
}
}
if access := find.Access; access != nil {
scopeClauses := []string{}
if access.UserID != nil {
scopeClauses = append(scopeClauses, "(`attachment`.`memo_id` IS NULL AND EXISTS (SELECT 1 FROM `user` AS `attachment_user` WHERE `attachment_user`.`id` = ? AND `attachment_user`.`row_status` = 'NORMAL') AND `attachment`.`creator_id` = ?)")
args = append(args, *access.UserID, *access.UserID)
}
scopeClauses = append(scopeClauses, "(`attachment`.`memo_id` IS NOT NULL AND "+sqliteMemoAccessPredicate(access, "`memo`", "`attachment_member`", &args)+")")
if len(scopeClauses) == 0 {
where = append(where, "1 = 0")
} else {
where = append(where, "("+strings.Join(scopeClauses, " OR ")+")")
}
}
fields := []string{
"`attachment`.`id` AS `id`",
"`attachment`.`uid` AS `uid`",
"`attachment`.`filename` AS `filename`",
"`attachment`.`type` AS `type`",
"`attachment`.`size` AS `size`",
"`attachment`.`creator_id` AS `creator_id`",
"`attachment`.`created_ts` AS `created_ts`",
"`attachment`.`updated_ts` AS `updated_ts`",
"`attachment`.`memo_id` AS `memo_id`",
"`attachment`.`storage_type` AS `storage_type`",
"`attachment`.`reference` AS `reference`",
"`attachment`.`payload` AS `payload`",
"CASE WHEN `memo`.`uid` IS NOT NULL THEN `memo`.`uid` ELSE NULL END AS `memo_uid`",
}
if find.GetBlob {
fields = append(fields, "`attachment`.`blob` AS `blob`")
}
query := "SELECT " + strings.Join(fields, ", ") + " FROM `attachment`" + " " +
"LEFT JOIN `memo` ON `attachment`.`memo_id` = `memo`.`id`" + " " +
"LEFT JOIN `space` AS `attachment_space` ON `memo`.`space_id` = `attachment_space`.`id`" + " " +
"WHERE " + strings.Join(where, " AND ") + " " +
"ORDER BY `attachment`.`updated_ts` DESC"
if find.Limit != nil {
query = fmt.Sprintf("%s LIMIT %d", query, *find.Limit)
if find.Offset != nil {
query = fmt.Sprintf("%s OFFSET %d", query, *find.Offset)
}
}
rows, err := d.db.QueryContext(ctx, query, args...)
if err != nil {
return nil, err
}
defer rows.Close()
list := make([]*store.Attachment, 0)
for rows.Next() {
attachment := store.Attachment{}
var memoID sql.NullInt32
var storageType string
var payloadBytes []byte
dests := []any{
&attachment.ID,
&attachment.UID,
&attachment.Filename,
&attachment.Type,
&attachment.Size,
&attachment.CreatorID,
&attachment.CreatedTs,
&attachment.UpdatedTs,
&memoID,
&storageType,
&attachment.Reference,
&payloadBytes,
&attachment.MemoUID,
}
if find.GetBlob {
dests = append(dests, &attachment.Blob)
}
if err := rows.Scan(dests...); err != nil {
return nil, err
}
if memoID.Valid {
attachment.MemoID = &memoID.Int32
}
attachment.StorageType = storepb.AttachmentStorageType(storepb.AttachmentStorageType_value[storageType])
payload := &storepb.AttachmentPayload{}
if err := protojsonUnmarshaler.Unmarshal(payloadBytes, payload); err != nil {
return nil, err
}
attachment.Payload = payload
list = append(list, &attachment)
}
if err := rows.Err(); err != nil {
return nil, err
}
return list, nil
}
func (d *DB) UpdateAttachment(ctx context.Context, update *store.UpdateAttachment) error {
if update.Policy == nil {
return applySQLiteAttachmentUpdate(ctx, d.db, update)
}
if update.MemoID != nil {
return store.ErrMemoMutationConflict
}
attachmentIDs := []int32{update.ID}
tx, err := d.db.BeginTx(ctx, nil)
if err != nil {
return err
}
defer func() { _ = tx.Rollback() }()
attachments, err := listSQLiteAttachmentSnapshots(ctx, tx, attachmentIDs)
if err != nil {
return err
}
memoIDs, err := store.ValidateAttachmentMutationTargets(update.Policy.ActorUserID, attachmentIDs, attachments)
if err != nil {
return err
}
if err := authorizeSQLiteAttachmentMutation(ctx, tx, update.Policy.ActorUserID, memoIDs, nil); err != nil {
return err
}
if err := applySQLiteAttachmentUpdate(ctx, tx, update); err != nil {
return err
}
return tx.Commit()
}
func applySQLiteAttachmentUpdate(ctx context.Context, executor dbExecutor, update *store.UpdateAttachment) error {
set, args := []string{}, []any{}
if v := update.UID; v != nil {
set, args = append(set, "`uid` = ?"), append(args, *v)
}
if v := update.UpdatedTs; v != nil {
set, args = append(set, "`updated_ts` = ?"), append(args, *v)
}
if v := update.Filename; v != nil {
set, args = append(set, "`filename` = ?"), append(args, *v)
}
if v := update.MemoID; v != nil {
set, args = append(set, "`memo_id` = ?"), append(args, *v)
}
if v := update.Payload; v != nil {
bytes, err := protojson.Marshal(v)
if err != nil {
return errors.Wrap(err, "failed to marshal attachment payload")
}
set, args = append(set, "`payload` = ?"), append(args, string(bytes))
}
args = append(args, update.ID)
stmt := "UPDATE `attachment` SET " + strings.Join(set, ", ") + " WHERE `id` = ?"
if len(set) == 0 {
return nil
}
result, err := executor.ExecContext(ctx, stmt, args...)
if err != nil {
return errors.Wrap(err, "failed to update attachment")
}
if _, err := result.RowsAffected(); err != nil {
return err
}
return nil
}
func (d *DB) DeleteAttachment(ctx context.Context, delete *store.DeleteAttachment) error {
return d.DeleteAttachments(ctx, []*store.DeleteAttachment{delete})
}
func (d *DB) DeleteAttachments(ctx context.Context, deletes []*store.DeleteAttachment) error {
if len(deletes) == 0 {
return nil
}
tx, err := d.db.BeginTx(ctx, nil)
if err != nil {
return errors.Wrap(err, "failed to start attachment delete transaction")
}
defer func() { _ = tx.Rollback() }()
stmt := "DELETE FROM `attachment` WHERE `id` = ?"
for _, delete := range deletes {
result, err := tx.ExecContext(ctx, stmt, delete.ID)
if err != nil {
return err
}
if _, err := result.RowsAffected(); err != nil {
return err
}
}
return tx.Commit()
}