gotosocial/internal/db/bundb/relationship_block.go
kim 7ec1e1332e
[performance] overhaul struct (+ result) caching library for simplicity, performance and multiple-result lookups (#2535)
* rewrite cache library as codeberg.org/gruf/go-structr, implement in gotosocial

* use actual go-structr release version (not just commit hash)

* revert go toolchain changes (damn you go for auto changing this)

* fix go mod woes

* ensure %w is used in calls to errs.Appendf()

* fix error checking

* fix possible panic

* remove unnecessary start/stop functions, move to main Cache{} struct, add note regarding which caches require start/stop

* fix copy-paste artifact... 😇

* fix all comment copy-paste artifacts

* remove dropID() function, now we can just use slices.DeleteFunc()

* use util.Deduplicate() instead of collate(), move collate to util

* move orderByIDs() to util package and "generify"

* add a util.DeleteIf() function, use this to delete entries on failed population

* use slices.DeleteFunc() instead of util.DeleteIf() (i had the logic mixed up in my head somehow lol)

* add note about how collate differs from deduplicate
2024-01-19 12:57:29 +00:00

315 lines
8.5 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"
"slices"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/util"
"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) GetBlocksByIDs(ctx context.Context, ids []string) ([]*gtsmodel.Block, error) {
// Preallocate at-worst possible length.
uncached := make([]string, 0, len(ids))
// Load all blocks IDs via cache loader callbacks.
blocks, err := r.state.Caches.GTS.Block.Load("ID",
// Load cached + check for uncached.
func(load func(keyParts ...any) bool) {
for _, id := range ids {
if !load(id) {
uncached = append(uncached, id)
}
}
},
// Uncached block loader function.
func() ([]*gtsmodel.Block, error) {
// Preallocate expected length of uncached blocks.
blocks := make([]*gtsmodel.Block, 0, len(uncached))
// Perform database query scanning
// the remaining (uncached) IDs.
if err := r.db.NewSelect().
Model(&blocks).
Where("? IN (?)", bun.Ident("id"), bun.In(uncached)).
Scan(ctx); err != nil {
return nil, err
}
return blocks, nil
},
)
if err != nil {
return nil, err
}
// Reorder the blocks by their
// IDs to ensure in correct order.
getID := func(b *gtsmodel.Block) string { return b.ID }
util.OrderBy(blocks, ids, getID)
if gtscontext.Barebones(ctx) {
// no need to fully populate.
return blocks, nil
}
// Populate all loaded blocks, removing those we fail to
// populate (removes needing so many nil checks everywhere).
blocks = slices.DeleteFunc(blocks, func(block *gtsmodel.Block) bool {
if err := r.PopulateBlock(ctx, block); err != nil {
log.Errorf(ctx, "error populating block %s: %v", block.ID, err)
return true
}
return false
})
return blocks, nil
}
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.LoadOne(lookup, func() (*gtsmodel.Block, error) {
var block gtsmodel.Block
// Not cached! Perform database query
if err := dbQuery(&block); err != nil {
return nil, 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
}
if err := r.state.DB.PopulateBlock(ctx, block); err != nil {
return nil, err
}
return block, nil
}
func (r *relationshipDB) PopulateBlock(ctx context.Context, block *gtsmodel.Block) error {
var (
errs gtserror.MultiError
err error
)
if block.Account == nil {
// Block origin account is not set, fetch from database.
block.Account, err = r.state.DB.GetAccountByID(
gtscontext.SetBarebones(ctx),
block.AccountID,
)
if err != nil {
errs.Appendf("error populating block account: %w", err)
}
}
if block.TargetAccount == nil {
// Block target account is not set, fetch from database.
block.TargetAccount, err = r.state.DB.GetAccountByID(
gtscontext.SetBarebones(ctx),
block.TargetAccountID,
)
if err != nil {
errs.Appendf("error populating block target account: %w", err)
}
}
return errs.Combine()
}
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 err
})
}
func (r *relationshipDB) DeleteBlockByID(ctx context.Context, id string) error {
// 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
}
// Drop this now-cached block on return after delete.
defer r.state.Caches.GTS.Block.Invalidate("ID", id)
// Finally delete block from DB.
_, err = r.db.NewDelete().
Table("blocks").
Where("? = ?", bun.Ident("id"), id).
Exec(ctx)
return err
}
func (r *relationshipDB) DeleteBlockByURI(ctx context.Context, uri string) error {
// 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
}
// Drop this now-cached block on return after delete.
defer r.state.Caches.GTS.Block.Invalidate("URI", uri)
// Finally delete block from DB.
_, err = r.db.NewDelete().
Table("blocks").
Where("? = ?", bun.Ident("uri"), uri).
Exec(ctx)
return 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 err
}
defer func() {
// Invalidate all account's incoming / outoing blocks on return.
r.state.Caches.GTS.Block.Invalidate("AccountID", accountID)
r.state.Caches.GTS.Block.Invalidate("TargetAccountID", accountID)
}()
// 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).
_, err := r.GetAccountBlocks(ctx, accountID, nil)
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 err
}