GoToSocial/internal/db/bundb/relationship_block.go
kim 5f3e095717
[performance] retry db queries on busy errors (#2025)
* catch SQLITE_BUSY errors, wrap bun.DB to use our own busy retrier, remove unnecessary db.Error type

Signed-off-by: kim <grufwub@gmail.com>

* remove dead code

Signed-off-by: kim <grufwub@gmail.com>

* remove more dead code, add missing error arguments

Signed-off-by: kim <grufwub@gmail.com>

* update sqlite to use maxOpenConns()

Signed-off-by: kim <grufwub@gmail.com>

* add uncommitted changes

Signed-off-by: kim <grufwub@gmail.com>

* use direct calls-through for the ConnIface to make sure we don't double query hook

Signed-off-by: kim <grufwub@gmail.com>

* expose underlying bun.DB better

Signed-off-by: kim <grufwub@gmail.com>

* retry on the correct busy error

Signed-off-by: kim <grufwub@gmail.com>

* use longer possible maxRetries for db retry-backoff

Signed-off-by: kim <grufwub@gmail.com>

* remove the note regarding max-open-conns only applying to postgres

Signed-off-by: kim <grufwub@gmail.com>

* improved code commenting

Signed-off-by: kim <grufwub@gmail.com>

* remove unnecessary infof call (just use info)

Signed-off-by: kim <grufwub@gmail.com>

* rename DBConn to WrappedDB to better follow sql package name conventions

Signed-off-by: kim <grufwub@gmail.com>

* update test error string checks

Signed-off-by: kim <grufwub@gmail.com>

* shush linter

Signed-off-by: kim <grufwub@gmail.com>

* update backoff logic to be more transparent

Signed-off-by: kim <grufwub@gmail.com>

---------

Signed-off-by: kim <grufwub@gmail.com>
2023-07-25 10:34:05 +02:00

237 lines
6.4 KiB
Go

// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package bundb
import (
"context"
"errors"
"fmt"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/uptrace/bun"
)
func (r *relationshipDB) IsBlocked(ctx context.Context, sourceAccountID string, targetAccountID string) (bool, error) {
block, err := r.GetBlock(
gtscontext.SetBarebones(ctx),
sourceAccountID,
targetAccountID,
)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
return false, err
}
return (block != nil), nil
}
func (r *relationshipDB) IsEitherBlocked(ctx context.Context, accountID1 string, accountID2 string) (bool, error) {
// Look for a block in direction of account1->account2
b1, err := r.IsBlocked(ctx, accountID1, accountID2)
if err != nil || b1 {
return true, err
}
// Look for a block in direction of account2->account1
b2, err := r.IsBlocked(ctx, accountID2, accountID1)
if err != nil || b2 {
return true, err
}
return false, nil
}
func (r *relationshipDB) GetBlockByID(ctx context.Context, id string) (*gtsmodel.Block, error) {
return r.getBlock(
ctx,
"ID",
func(block *gtsmodel.Block) error {
return r.db.NewSelect().Model(block).
Where("? = ?", bun.Ident("block.id"), id).
Scan(ctx)
},
id,
)
}
func (r *relationshipDB) GetBlockByURI(ctx context.Context, uri string) (*gtsmodel.Block, error) {
return r.getBlock(
ctx,
"URI",
func(block *gtsmodel.Block) error {
return r.db.NewSelect().Model(block).
Where("? = ?", bun.Ident("block.uri"), uri).
Scan(ctx)
},
uri,
)
}
func (r *relationshipDB) GetBlock(ctx context.Context, sourceAccountID string, targetAccountID string) (*gtsmodel.Block, error) {
return r.getBlock(
ctx,
"AccountID.TargetAccountID",
func(block *gtsmodel.Block) error {
return r.db.NewSelect().Model(block).
Where("? = ?", bun.Ident("block.account_id"), sourceAccountID).
Where("? = ?", bun.Ident("block.target_account_id"), targetAccountID).
Scan(ctx)
},
sourceAccountID,
targetAccountID,
)
}
func (r *relationshipDB) getBlock(ctx context.Context, lookup string, dbQuery func(*gtsmodel.Block) error, keyParts ...any) (*gtsmodel.Block, error) {
// Fetch block from cache with loader callback
block, err := r.state.Caches.GTS.Block().Load(lookup, func() (*gtsmodel.Block, error) {
var block gtsmodel.Block
// Not cached! Perform database query
if err := dbQuery(&block); err != nil {
return nil, r.db.ProcessError(err)
}
return &block, nil
}, keyParts...)
if err != nil {
// already processe
return nil, err
}
if gtscontext.Barebones(ctx) {
// Only a barebones model was requested.
return block, nil
}
// Set the block source account
block.Account, err = r.state.DB.GetAccountByID(
gtscontext.SetBarebones(ctx),
block.AccountID,
)
if err != nil {
return nil, fmt.Errorf("error getting block source account: %w", err)
}
// Set the block target account
block.TargetAccount, err = r.state.DB.GetAccountByID(
gtscontext.SetBarebones(ctx),
block.TargetAccountID,
)
if err != nil {
return nil, fmt.Errorf("error getting block target account: %w", err)
}
return block, nil
}
func (r *relationshipDB) PutBlock(ctx context.Context, block *gtsmodel.Block) error {
return r.state.Caches.GTS.Block().Store(block, func() error {
_, err := r.db.NewInsert().Model(block).Exec(ctx)
return r.db.ProcessError(err)
})
}
func (r *relationshipDB) DeleteBlockByID(ctx context.Context, id string) error {
defer r.state.Caches.GTS.Block().Invalidate("ID", id)
// Load block into cache before attempting a delete,
// as we need it cached in order to trigger the invalidate
// callback. This in turn invalidates others.
_, err := r.GetBlockByID(gtscontext.SetBarebones(ctx), id)
if err != nil {
if errors.Is(err, db.ErrNoEntries) {
// not an issue.
err = nil
}
return err
}
// Finally delete block from DB.
_, err = r.db.NewDelete().
Table("blocks").
Where("? = ?", bun.Ident("id"), id).
Exec(ctx)
return r.db.ProcessError(err)
}
func (r *relationshipDB) DeleteBlockByURI(ctx context.Context, uri string) error {
defer r.state.Caches.GTS.Block().Invalidate("URI", uri)
// Load block into cache before attempting a delete,
// as we need it cached in order to trigger the invalidate
// callback. This in turn invalidates others.
_, err := r.GetBlockByURI(gtscontext.SetBarebones(ctx), uri)
if err != nil {
if errors.Is(err, db.ErrNoEntries) {
// not an issue.
err = nil
}
return err
}
// Finally delete block from DB.
_, err = r.db.NewDelete().
Table("blocks").
Where("? = ?", bun.Ident("uri"), uri).
Exec(ctx)
return r.db.ProcessError(err)
}
func (r *relationshipDB) DeleteAccountBlocks(ctx context.Context, accountID string) error {
var blockIDs []string
// Get full list of IDs.
if err := r.db.NewSelect().
Column("id").
Table("blocks").
WhereOr("? = ? OR ? = ?",
bun.Ident("account_id"),
accountID,
bun.Ident("target_account_id"),
accountID,
).
Scan(ctx, &blockIDs); err != nil {
return r.db.ProcessError(err)
}
defer func() {
// Invalidate all IDs on return.
for _, id := range blockIDs {
r.state.Caches.GTS.Block().Invalidate("ID", id)
}
}()
// Load all blocks into cache, this *really* isn't great
// but it is the only way we can ensure we invalidate all
// related caches correctly (e.g. visibility).
for _, id := range blockIDs {
_, err := r.GetBlockByID(ctx, id)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
return err
}
}
// Finally delete all from DB.
_, err := r.db.NewDelete().
Table("blocks").
Where("? IN (?)", bun.Ident("id"), bun.In(blockIDs)).
Exec(ctx)
return r.db.ProcessError(err)
}