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// 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 gtsmodel contains types used *internally* by GoToSocial and added/removed/selected from the database.
// These types should never be serialized and/or sent out via public APIs, as they contain sensitive information.
// The annotation used on these structs is for handling them via the bun-db ORM.
// See here for more info on bun model annotations: https://bun.uptrace.dev/guide/models.html
package federatingdb
import (
"context"
"errors"
"fmt"
"github.com/superseriousbusiness/activity/streams/vocab"
"github.com/superseriousbusiness/gotosocial/internal/ap"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/messages"
)
func (f *federatingDB) Move(ctx context.Context, move vocab.ActivityStreamsMove) error {
log.DebugKV(ctx, "move", serialize{move})
activityContext := getActivityContext(ctx)
if activityContext.internal {
// Already processed.
return nil
}
requestingAcct := activityContext.requestingAcct
receivingAcct := activityContext.receivingAcct
if requestingAcct.IsLocal() {
// We should not be processing
// a Move sent from our own
// instance in the federatingDB.
return nil
}
// Basic Move requirements we can
// check at this point already:
//
// - Move must have ID/URI set.
// - Move `object` and `actor` must
// be set, and must be the same
// as requesting account.
// - Move `target` must be set, and
// must *not* be the same as
// requesting account.
// - Move `target` and `object` must
// not have been involved in a
// successful Move within the
// last 7 days.
//
// If the Move looks OK at this point,
// additional requirements and checks
// will be processed in FromFediAPI.
// Ensure ID/URI set.
moveURI := ap.GetJSONLDId(move)
if moveURI == nil {
err := errors.New("Move ID/URI was nil")
return gtserror.SetMalformed(err)
}
moveURIStr := moveURI.String()
// Check `object` property.
objects := ap.GetObjectIRIs(move)
if l := len(objects); l != 1 {
err := fmt.Errorf("Move requires exactly 1 object, had %d", l)
return gtserror.SetMalformed(err)
}
object := objects[0]
objectStr := object.String()
if objectStr != requestingAcct.URI {
err := fmt.Errorf(
"Move was signed by %s but object was %s",
requestingAcct.URI, objectStr,
)
return gtserror.SetMalformed(err)
}
// Check `actor` property.
actors := ap.GetActorIRIs(move)
if l := len(actors); l != 1 {
err := fmt.Errorf("Move requires exactly 1 actor, had %d", l)
return gtserror.SetMalformed(err)
}
actor := actors[0]
actorStr := actor.String()
if actorStr != requestingAcct.URI {
err := fmt.Errorf(
"Move was signed by %s but actor was %s",
requestingAcct.URI, actorStr,
)
return gtserror.SetMalformed(err)
}
// Check `target` property.
targets := ap.GetTargetIRIs(move)
if l := len(targets); l != 1 {
err := fmt.Errorf("Move requires exactly 1 target, had %d", l)
return gtserror.SetMalformed(err)
}
target := targets[0]
targetStr := target.String()
if targetStr == requestingAcct.URI {
err := fmt.Errorf(
"Move target and origin were the same (%s)",
targetStr,
)
return gtserror.SetMalformed(err)
}
// If movedToURI is set on requestingAcct,
// make sure it points to the intended target.
//
// If it's not set, that's fine, we don't
// need it right now. We know by now that the
// Move was really sent to us by requestingAcct.
movedToURI := receivingAcct.MovedToURI
if movedToURI != "" &&
movedToURI != targetStr {
err := fmt.Errorf(
"origin account movedTo is set to %s, which differs from Move target; will not process Move",
movedToURI,
)
return gtserror.SetMalformed(err)
}
// Create a stub *gtsmodel.Move with relevant
// values. This will be updated / stored by the
// fedi api worker as necessary.
stubMove := >smodel.Move{
OriginURI: objectStr,
Origin: object,
TargetURI: targetStr,
Target: target,
URI: moveURIStr,
}
// We had a Move already or stored a new Move.
// Pass back to a worker for async processing.
f.state.Workers.Federator.Queue.Push(&messages.FromFediAPI{
APObjectType: ap.ActorPerson,
APActivityType: ap.ActivityMove,
GTSModel: stubMove,
Requesting: requestingAcct,
Receiving: receivingAcct,
})
return nil
}
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