222 lines
7.4 KiB
Go
222 lines
7.4 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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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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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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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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*/
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package federatingdb
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"net/url"
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"github.com/go-fed/activity/streams"
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"github.com/go-fed/activity/streams/vocab"
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"github.com/sirupsen/logrus"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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"github.com/superseriousbusiness/gotosocial/internal/id"
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"github.com/superseriousbusiness/gotosocial/internal/util"
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)
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func sameActor(activityActor vocab.ActivityStreamsActorProperty, followActor vocab.ActivityStreamsActorProperty) bool {
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if activityActor == nil || followActor == nil {
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return false
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}
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for aIter := activityActor.Begin(); aIter != activityActor.End(); aIter = aIter.Next() {
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for fIter := followActor.Begin(); fIter != followActor.End(); fIter = fIter.Next() {
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if aIter.GetIRI() == nil {
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return false
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}
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if fIter.GetIRI() == nil {
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return false
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}
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if aIter.GetIRI().String() == fIter.GetIRI().String() {
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return true
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}
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}
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}
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return false
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}
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// NewID creates a new IRI id for the provided activity or object. The
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// implementation does not need to set the 'id' property and simply
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// needs to determine the value.
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//
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// The go-fed library will handle setting the 'id' property on the
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// activity or object provided with the value returned.
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func (f *federatingDB) NewID(c context.Context, t vocab.Type) (idURL *url.URL, err error) {
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l := f.log.WithFields(
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logrus.Fields{
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"func": "NewID",
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"asType": t.GetTypeName(),
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},
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)
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m, err := streams.Serialize(t)
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if err != nil {
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return nil, err
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}
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b, err := json.Marshal(m)
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if err != nil {
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return nil, err
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}
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l.Debugf("received NEWID request for asType %s", string(b))
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switch t.GetTypeName() {
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case gtsmodel.ActivityStreamsFollow:
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// FOLLOW
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// ID might already be set on a follow we've created, so check it here and return it if it is
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follow, ok := t.(vocab.ActivityStreamsFollow)
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if !ok {
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return nil, errors.New("newid: follow couldn't be parsed into vocab.ActivityStreamsFollow")
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}
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idProp := follow.GetJSONLDId()
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if idProp != nil {
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if idProp.IsIRI() {
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return idProp.GetIRI(), nil
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}
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}
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// it's not set so create one based on the actor set on the follow (ie., the followER not the followEE)
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actorProp := follow.GetActivityStreamsActor()
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if actorProp != nil {
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for iter := actorProp.Begin(); iter != actorProp.End(); iter = iter.Next() {
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// take the IRI of the first actor we can find (there should only be one)
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if iter.IsIRI() {
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actorAccount := >smodel.Account{}
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if err := f.db.GetWhere([]db.Where{{Key: "uri", Value: iter.GetIRI().String()}}, actorAccount); err == nil { // if there's an error here, just use the fallback behavior -- we don't need to return an error here
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newID, err := id.NewRandomULID()
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if err != nil {
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return nil, err
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}
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return url.Parse(util.GenerateURIForFollow(actorAccount.Username, f.config.Protocol, f.config.Host, newID))
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}
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}
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}
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}
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case gtsmodel.ActivityStreamsNote:
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// NOTE aka STATUS
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// ID might already be set on a note we've created, so check it here and return it if it is
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note, ok := t.(vocab.ActivityStreamsNote)
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if !ok {
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return nil, errors.New("newid: note couldn't be parsed into vocab.ActivityStreamsNote")
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}
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idProp := note.GetJSONLDId()
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if idProp != nil {
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if idProp.IsIRI() {
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return idProp.GetIRI(), nil
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}
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}
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case gtsmodel.ActivityStreamsLike:
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// LIKE aka FAVE
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// ID might already be set on a fave we've created, so check it here and return it if it is
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fave, ok := t.(vocab.ActivityStreamsLike)
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if !ok {
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return nil, errors.New("newid: fave couldn't be parsed into vocab.ActivityStreamsLike")
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}
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idProp := fave.GetJSONLDId()
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if idProp != nil {
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if idProp.IsIRI() {
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return idProp.GetIRI(), nil
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}
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}
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case gtsmodel.ActivityStreamsAnnounce:
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// ANNOUNCE aka BOOST
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// ID might already be set on an announce we've created, so check it here and return it if it is
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announce, ok := t.(vocab.ActivityStreamsAnnounce)
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if !ok {
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return nil, errors.New("newid: fave couldn't be parsed into vocab.ActivityStreamsAnnounce")
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}
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idProp := announce.GetJSONLDId()
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if idProp != nil {
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if idProp.IsIRI() {
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return idProp.GetIRI(), nil
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}
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}
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case gtsmodel.ActivityStreamsUpdate:
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// UPDATE
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// ID might already be set on an update we've created, so check it here and return it if it is
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update, ok := t.(vocab.ActivityStreamsUpdate)
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if !ok {
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return nil, errors.New("newid: fave couldn't be parsed into vocab.ActivityStreamsUpdate")
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}
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idProp := update.GetJSONLDId()
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if idProp != nil {
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if idProp.IsIRI() {
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return idProp.GetIRI(), nil
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}
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}
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}
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// fallback default behavior: just return a random ULID after our protocol and host
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newID, err := id.NewRandomULID()
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if err != nil {
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return nil, err
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}
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return url.Parse(fmt.Sprintf("%s://%s/%s", f.config.Protocol, f.config.Host, newID))
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}
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// ActorForOutbox fetches the actor's IRI for the given outbox IRI.
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//
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// The library makes this call only after acquiring a lock first.
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func (f *federatingDB) ActorForOutbox(c context.Context, outboxIRI *url.URL) (actorIRI *url.URL, err error) {
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l := f.log.WithFields(
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logrus.Fields{
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"func": "ActorForOutbox",
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"inboxIRI": outboxIRI.String(),
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},
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)
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l.Debugf("entering ACTORFOROUTBOX function with outboxIRI %s", outboxIRI.String())
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if !util.IsOutboxPath(outboxIRI) {
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return nil, fmt.Errorf("%s is not an outbox URI", outboxIRI.String())
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}
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acct := >smodel.Account{}
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if err := f.db.GetWhere([]db.Where{{Key: "outbox_uri", Value: outboxIRI.String()}}, acct); err != nil {
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if _, ok := err.(db.ErrNoEntries); ok {
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return nil, fmt.Errorf("no actor found that corresponds to outbox %s", outboxIRI.String())
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}
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return nil, fmt.Errorf("db error searching for actor with outbox %s", outboxIRI.String())
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}
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return url.Parse(acct.URI)
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}
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// ActorForInbox fetches the actor's IRI for the given outbox IRI.
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//
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// The library makes this call only after acquiring a lock first.
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func (f *federatingDB) ActorForInbox(c context.Context, inboxIRI *url.URL) (actorIRI *url.URL, err error) {
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l := f.log.WithFields(
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logrus.Fields{
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"func": "ActorForInbox",
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"inboxIRI": inboxIRI.String(),
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},
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)
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l.Debugf("entering ACTORFORINBOX function with inboxIRI %s", inboxIRI.String())
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if !util.IsInboxPath(inboxIRI) {
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return nil, fmt.Errorf("%s is not an inbox URI", inboxIRI.String())
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}
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acct := >smodel.Account{}
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if err := f.db.GetWhere([]db.Where{{Key: "inbox_uri", Value: inboxIRI.String()}}, acct); err != nil {
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if _, ok := err.(db.ErrNoEntries); ok {
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return nil, fmt.Errorf("no actor found that corresponds to inbox %s", inboxIRI.String())
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}
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return nil, fmt.Errorf("db error searching for actor with inbox %s", inboxIRI.String())
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}
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return url.Parse(acct.URI)
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}
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