gotosocial/internal/federation/federatingdb/update.go

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/*
GoToSocial
Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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"
"encoding/json"
"errors"
"fmt"
"github.com/go-fed/activity/streams"
"github.com/go-fed/activity/streams/vocab"
"github.com/sirupsen/logrus"
"github.com/superseriousbusiness/gotosocial/internal/ap"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/util"
)
// Update sets an existing entry to the database based on the value's
// id.
//
// Note that Activity values received from federated peers may also be
// updated in the database this way if the Federating Protocol is
// enabled. The client may freely decide to store only the id instead of
// the entire value.
//
// The library makes this call only after acquiring a lock first.
func (f *federatingDB) Update(ctx context.Context, asType vocab.Type) error {
l := f.log.WithFields(
logrus.Fields{
"func": "Update",
"asType": asType.GetTypeName(),
},
)
m, err := streams.Serialize(asType)
if err != nil {
return err
}
b, err := json.Marshal(m)
if err != nil {
return err
}
l.Debugf("received UPDATE asType %s", string(b))
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targetAcctI := ctx.Value(util.APAccount)
if targetAcctI == nil {
// If the target account wasn't set on the context, that means this request didn't pass through the
// API, but came from inside GtS as the result of another activity on this instance. That being so,
// we can safely just ignore this activity, since we know we've already processed it elsewhere.
return nil
}
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targetAcct, ok := targetAcctI.(*gtsmodel.Account)
if !ok {
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l.Error("UPDATE: target account was set on context but couldn't be parsed")
}
requestingAcctI := ctx.Value(util.APRequestingAccount)
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if targetAcctI == nil {
l.Error("UPDATE: requesting account wasn't set on context")
}
requestingAcct, ok := requestingAcctI.(*gtsmodel.Account)
if !ok {
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l.Error("UPDATE: requesting account was set on context but couldn't be parsed")
}
fromFederatorChanI := ctx.Value(util.APFromFederatorChanKey)
if fromFederatorChanI == nil {
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l.Error("UPDATE: from federator channel wasn't set on context")
}
fromFederatorChan, ok := fromFederatorChanI.(chan gtsmodel.FromFederator)
if !ok {
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l.Error("UPDATE: from federator channel was set on context but couldn't be parsed")
}
typeName := asType.GetTypeName()
if typeName == gtsmodel.ActivityStreamsApplication ||
typeName == gtsmodel.ActivityStreamsGroup ||
typeName == gtsmodel.ActivityStreamsOrganization ||
typeName == gtsmodel.ActivityStreamsPerson ||
typeName == gtsmodel.ActivityStreamsService {
// it's an UPDATE to some kind of account
var accountable ap.Accountable
switch asType.GetTypeName() {
case gtsmodel.ActivityStreamsApplication:
l.Debug("got update for APPLICATION")
i, ok := asType.(vocab.ActivityStreamsApplication)
if !ok {
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return errors.New("UPDATE: could not convert type to application")
}
accountable = i
case gtsmodel.ActivityStreamsGroup:
l.Debug("got update for GROUP")
i, ok := asType.(vocab.ActivityStreamsGroup)
if !ok {
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return errors.New("UPDATE: could not convert type to group")
}
accountable = i
case gtsmodel.ActivityStreamsOrganization:
l.Debug("got update for ORGANIZATION")
i, ok := asType.(vocab.ActivityStreamsOrganization)
if !ok {
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return errors.New("UPDATE: could not convert type to organization")
}
accountable = i
case gtsmodel.ActivityStreamsPerson:
l.Debug("got update for PERSON")
i, ok := asType.(vocab.ActivityStreamsPerson)
if !ok {
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return errors.New("UPDATE: could not convert type to person")
}
accountable = i
case gtsmodel.ActivityStreamsService:
l.Debug("got update for SERVICE")
i, ok := asType.(vocab.ActivityStreamsService)
if !ok {
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return errors.New("UPDATE: could not convert type to service")
}
accountable = i
}
updatedAcct, err := f.typeConverter.ASRepresentationToAccount(ctx, accountable, true)
if err != nil {
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return fmt.Errorf("UPDATE: error converting to account: %s", err)
}
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if updatedAcct.Domain == f.config.Host {
// no need to update local accounts
// in fact, if we do this will break the shit out of things so do NOT
return nil
}
if requestingAcct.URI != updatedAcct.URI {
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return fmt.Errorf("UPDATE: update for account %s was requested by account %s, this is not valid", updatedAcct.URI, requestingAcct.URI)
}
updatedAcct.ID = requestingAcct.ID // set this here so the db will update properly instead of trying to PUT this and getting constraint issues
updatedAcct, err = f.db.UpdateAccount(ctx, updatedAcct)
if err != nil {
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return fmt.Errorf("UPDATE: database error inserting updated account: %s", err)
}
fromFederatorChan <- gtsmodel.FromFederator{
APObjectType: gtsmodel.ActivityStreamsProfile,
APActivityType: gtsmodel.ActivityStreamsUpdate,
GTSModel: updatedAcct,
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ReceivingAccount: targetAcct,
}
}
return nil
}