gotosocial/internal/federation/federatingdb/owns.go
tobi 8d2a76c58c
[bugfix] Add proper constraints on status faves, dedupe (#1674)
* [bugfix] Start working on multiple like issue

* finish up
2023-04-05 20:10:05 +02:00

192 lines
6.3 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 federatingdb
import (
"context"
"errors"
"fmt"
"net/url"
"codeberg.org/gruf/go-kv"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/uris"
)
// Owns returns true if the IRI belongs to this instance, and if
// the database has an entry for the IRI.
// The library makes this call only after acquiring a lock first.
func (f *federatingDB) Owns(ctx context.Context, id *url.URL) (bool, error) {
l := log.WithContext(ctx).
WithFields(kv.Fields{
{"id", id},
}...)
l.Debug("entering Owns")
// if the id host isn't this instance host, we don't own this IRI
if host := config.GetHost(); id.Host != host {
l.Tracef("we DO NOT own activity because the host is %s not %s", id.Host, host)
return false, nil
}
// todo: refactor the below; make sure we use
// proper db functions for everything, and
// preferably clean up by calling subfuncs
// (like we now do for ownsLike).
// apparently it belongs to this host, so what *is* it?
// check if it's a status, eg /users/example_username/statuses/SOME_UUID_OF_A_STATUS
if uris.IsStatusesPath(id) {
_, uid, err := uris.ParseStatusesPath(id)
if err != nil {
return false, fmt.Errorf("error parsing statuses path for url %s: %s", id.String(), err)
}
status, err := f.state.DB.GetStatusByURI(ctx, uid)
if err != nil {
if err == db.ErrNoEntries {
// there are no entries for this status
return false, nil
}
// an actual error happened
return false, fmt.Errorf("database error fetching status with id %s: %s", uid, err)
}
return *status.Local, nil
}
if uris.IsUserPath(id) {
username, err := uris.ParseUserPath(id)
if err != nil {
return false, fmt.Errorf("error parsing statuses path for url %s: %s", id.String(), err)
}
if _, err := f.state.DB.GetAccountByUsernameDomain(ctx, username, ""); err != nil {
if err == db.ErrNoEntries {
// there are no entries for this username
return false, nil
}
// an actual error happened
return false, fmt.Errorf("database error fetching account with username %s: %s", username, err)
}
l.Debugf("we own url %s", id.String())
return true, nil
}
if uris.IsFollowersPath(id) {
username, err := uris.ParseFollowersPath(id)
if err != nil {
return false, fmt.Errorf("error parsing statuses path for url %s: %s", id.String(), err)
}
if _, err := f.state.DB.GetAccountByUsernameDomain(ctx, username, ""); err != nil {
if err == db.ErrNoEntries {
// there are no entries for this username
return false, nil
}
// an actual error happened
return false, fmt.Errorf("database error fetching account with username %s: %s", username, err)
}
l.Debugf("we own url %s", id.String())
return true, nil
}
if uris.IsFollowingPath(id) {
username, err := uris.ParseFollowingPath(id)
if err != nil {
return false, fmt.Errorf("error parsing statuses path for url %s: %s", id.String(), err)
}
if _, err := f.state.DB.GetAccountByUsernameDomain(ctx, username, ""); err != nil {
if err == db.ErrNoEntries {
// there are no entries for this username
return false, nil
}
// an actual error happened
return false, fmt.Errorf("database error fetching account with username %s: %s", username, err)
}
l.Debugf("we own url %s", id.String())
return true, nil
}
if uris.IsLikePath(id) {
return f.ownsLike(ctx, id)
}
if uris.IsBlockPath(id) {
username, blockID, err := uris.ParseBlockPath(id)
if err != nil {
return false, fmt.Errorf("error parsing block path for url %s: %s", id.String(), err)
}
if _, err := f.state.DB.GetAccountByUsernameDomain(ctx, username, ""); err != nil {
if err == db.ErrNoEntries {
// there are no entries for this username
return false, nil
}
// an actual error happened
return false, fmt.Errorf("database error fetching account with username %s: %s", username, err)
}
if err := f.state.DB.GetByID(ctx, blockID, &gtsmodel.Block{}); err != nil {
if err == db.ErrNoEntries {
// there are no entries
return false, nil
}
// an actual error happened
return false, fmt.Errorf("database error fetching block with id %s: %s", blockID, err)
}
l.Debugf("we own url %s", id.String())
return true, nil
}
return false, fmt.Errorf("could not match activityID: %s", id.String())
}
func (f *federatingDB) ownsLike(ctx context.Context, uri *url.URL) (bool, error) {
username, id, err := uris.ParseLikedPath(uri)
if err != nil {
return false, fmt.Errorf("error parsing Like path for url %s: %w", uri.String(), err)
}
// We're only checking for existence,
// so use barebones context.
bbCtx := gtscontext.SetBarebones(ctx)
if _, err := f.state.DB.GetAccountByUsernameDomain(bbCtx, username, ""); err != nil {
if errors.Is(err, db.ErrNoEntries) {
// No entries for this acct,
// we don't own this item.
return false, nil
}
// Actual error.
return false, fmt.Errorf("database error fetching account with username %s: %w", username, err)
}
if _, err := f.state.DB.GetStatusFaveByID(bbCtx, id); err != nil {
if errors.Is(err, db.ErrNoEntries) {
// No entries for this ID,
// we don't own this item.
return false, nil
}
// Actual error.
return false, fmt.Errorf("database error fetching status fave with id %s: %w", id, err)
}
log.Tracef(ctx, "we own Like %s", uri.String())
return true, nil
}