mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-05 01:52:46 +00:00
8effc77788
* improved federatingdb logging in cases of unknown iri / types, add new log methods * whoops; forgot to wrap log argument in serialize{} ! * use debug instead of warn level * switch last entry to Debug
326 lines
8.3 KiB
Go
326 lines
8.3 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package federatingdb
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import (
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"context"
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"errors"
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"fmt"
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"github.com/superseriousbusiness/activity/streams/vocab"
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"github.com/superseriousbusiness/gotosocial/internal/ap"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/gtscontext"
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"github.com/superseriousbusiness/gotosocial/internal/gtserror"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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"github.com/superseriousbusiness/gotosocial/internal/log"
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)
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func (f *federatingDB) Undo(ctx context.Context, undo vocab.ActivityStreamsUndo) error {
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log.DebugKV(ctx, "undo", serialize{undo})
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activityContext := getActivityContext(ctx)
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if activityContext.internal {
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return nil // Already processed.
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}
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requestingAcct := activityContext.requestingAcct
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receivingAcct := activityContext.receivingAcct
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for _, object := range ap.ExtractObjects(undo) {
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// Try to get object as vocab.Type,
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// else skip handling (likely) IRI.
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asType := object.GetType()
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if asType == nil {
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continue
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}
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// Check and handle any vocab.Type objects.
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switch name := asType.GetTypeName(); name {
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// UNDO FOLLOW
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case ap.ActivityFollow:
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if err := f.undoFollow(
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ctx,
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receivingAcct,
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requestingAcct,
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undo,
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asType,
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); err != nil {
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return err
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}
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// UNDO LIKE
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case ap.ActivityLike:
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if err := f.undoLike(
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ctx,
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receivingAcct,
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requestingAcct,
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undo,
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asType,
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); err != nil {
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return err
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}
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// UNDO BLOCK
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case ap.ActivityBlock:
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if err := f.undoBlock(
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ctx,
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receivingAcct,
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requestingAcct,
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undo,
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asType,
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); err != nil {
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return err
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}
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// UNHANDLED
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default:
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log.Debugf(ctx, "unhandled object type: %s", name)
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}
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}
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return nil
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}
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func (f *federatingDB) undoFollow(
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ctx context.Context,
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receivingAcct *gtsmodel.Account,
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requestingAcct *gtsmodel.Account,
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undo vocab.ActivityStreamsUndo,
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t vocab.Type,
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) error {
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asFollow, ok := t.(vocab.ActivityStreamsFollow)
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if !ok {
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err := fmt.Errorf("%T not parseable as vocab.ActivityStreamsFollow", t)
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return gtserror.SetMalformed(err)
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}
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// Make sure the Undo
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// actor owns the target.
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if !sameActor(
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undo.GetActivityStreamsActor(),
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asFollow.GetActivityStreamsActor(),
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) {
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// Ignore this Activity.
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return nil
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}
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// Convert AS Follow to barebones *gtsmodel.Follow,
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// retrieving origin + target accts from the db.
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follow, err := f.converter.ASFollowToFollow(
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gtscontext.SetBarebones(ctx),
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asFollow,
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)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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err := gtserror.Newf("error converting AS Follow to follow: %w", err)
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return err
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}
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// We were missing origin or
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// target for this Follow, so
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// we cannot Undo anything.
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if follow == nil {
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return nil
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}
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// Ensure addressee is follow target.
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if follow.TargetAccountID != receivingAcct.ID {
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const text = "receivingAcct was not Follow target"
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return gtserror.NewErrorForbidden(errors.New(text), text)
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}
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// Ensure requester is follow origin.
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if follow.AccountID != requestingAcct.ID {
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const text = "requestingAcct was not Follow origin"
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return gtserror.NewErrorForbidden(errors.New(text), text)
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}
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// Delete any existing follow with this URI.
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err = f.state.DB.DeleteFollowByURI(ctx, follow.URI)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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err := gtserror.Newf("db error deleting follow: %w", err)
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return err
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}
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// Delete any existing follow request with this URI.
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err = f.state.DB.DeleteFollowRequestByURI(ctx, follow.URI)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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err := gtserror.Newf("db error deleting follow request: %w", err)
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return err
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}
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log.Debug(ctx, "Follow undone")
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return nil
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}
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func (f *federatingDB) undoLike(
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ctx context.Context,
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receivingAcct *gtsmodel.Account,
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requestingAcct *gtsmodel.Account,
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undo vocab.ActivityStreamsUndo,
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t vocab.Type,
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) error {
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asLike, ok := t.(vocab.ActivityStreamsLike)
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if !ok {
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err := fmt.Errorf("%T not parseable as vocab.ActivityStreamsLike", t)
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return gtserror.SetMalformed(err)
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}
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// Make sure the Undo
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// actor owns the target.
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if !sameActor(
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undo.GetActivityStreamsActor(),
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asLike.GetActivityStreamsActor(),
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) {
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// Ignore this Activity.
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return nil
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}
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// Convert AS Like to barebones *gtsmodel.StatusFave,
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// retrieving liking acct and target status from the DB.
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fave, err := f.converter.ASLikeToFave(
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gtscontext.SetBarebones(ctx),
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asLike,
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)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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err := gtserror.Newf("error converting AS Like to fave: %w", err)
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return err
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}
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// We were missing status, account,
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// or other for this Like, so we
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// cannot Undo anything.
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if fave == nil {
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return nil
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}
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// Ensure addressee is fave target.
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if fave.TargetAccountID != receivingAcct.ID {
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const text = "receivingAcct was not Fave target"
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return gtserror.NewErrorForbidden(errors.New(text), text)
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}
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// Ensure requester is fave origin.
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if fave.AccountID != requestingAcct.ID {
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const text = "requestingAcct was not Fave origin"
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return gtserror.NewErrorForbidden(errors.New(text), text)
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}
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// Fetch fave from the DB so we know the ID to delete it.
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//
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// Ignore URI on Likes, since we often get multiple Likes
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// with the same target and account ID, but differing URIs.
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// Instead, we'll select using account and target status.
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//
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// Regardless of the URI, we can read an Undo Like to mean
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// "I don't want to fave this post anymore".
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fave, err = f.state.DB.GetStatusFave(
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gtscontext.SetBarebones(ctx),
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fave.AccountID,
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fave.StatusID,
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)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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err := gtserror.Newf(
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"db error getting fave from %s targeting %s: %w",
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fave.AccountID, fave.StatusID, err,
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)
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return err
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}
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if fave == nil {
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// We didn't have this fave
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// stored anyway, so we can't
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// Undo it, just ignore.
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return nil
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}
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// Delete the fave.
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if err := f.state.DB.DeleteStatusFaveByID(ctx, fave.ID); err != nil {
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err := gtserror.Newf("db error deleting fave %s: %w", fave.ID, err)
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return err
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}
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log.Debug(ctx, "Like undone")
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return nil
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}
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func (f *federatingDB) undoBlock(
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ctx context.Context,
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receivingAcct *gtsmodel.Account,
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requestingAcct *gtsmodel.Account,
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undo vocab.ActivityStreamsUndo,
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t vocab.Type,
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) error {
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asBlock, ok := t.(vocab.ActivityStreamsBlock)
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if !ok {
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err := fmt.Errorf("%T not parseable as vocab.ActivityStreamsBlock", t)
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return gtserror.SetMalformed(err)
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}
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// Make sure the Undo
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// actor owns the target.
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if !sameActor(
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undo.GetActivityStreamsActor(),
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asBlock.GetActivityStreamsActor(),
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) {
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// Ignore this Activity.
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return nil
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}
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// Convert AS Block to barebones *gtsmodel.Block,
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// retrieving origin + target accts from the DB.
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block, err := f.converter.ASBlockToBlock(
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gtscontext.SetBarebones(ctx),
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asBlock,
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)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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err := gtserror.Newf("error converting AS Block to block: %w", err)
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return err
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}
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// We were missing origin or
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// target for this Block, so
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// we cannot Undo anything.
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if block == nil {
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return nil
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}
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// Ensure addressee is block target.
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if block.TargetAccountID != receivingAcct.ID {
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const text = "receivingAcct was not Block target"
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return gtserror.NewErrorForbidden(errors.New(text), text)
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}
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// Ensure requester is block origin.
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if block.AccountID != requestingAcct.ID {
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const text = "requestingAcct was not Block origin"
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return gtserror.NewErrorForbidden(errors.New(text), text)
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}
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// Delete any existing block.
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err = f.state.DB.DeleteBlockByURI(ctx, block.URI)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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err := gtserror.Newf("db error deleting block: %w", err)
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return err
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}
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log.Debug(ctx, "Block undone")
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return nil
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}
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