forgejo/services/federation/person_inbox_undo.go
Michael Jerger 7566ebfba7 Add ActivityPub Person follow from distant (#8720)
This PR is part of #4767. It

1. adds the ability to follow a local person from a distant federation server (see tests/integration/api_activitypub_person_inbox_follow_test.go)
2. streamlines the router code (refactor the person conversion & handling of inbox requests in service direction, unifies service call signature & error handling)
3. introduces queues for decoupling outgoing communication (delivery retry to cope network issues or distant service downtimes) and
4. adds minor fixes to integration tests (test timeout & invalid inbox activities)

Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/8720
Reviewed-by: Earl Warren <earl-warren@noreply.codeberg.org>
Co-authored-by: Michael Jerger <michael.jerger@meissa-gmbh.de>
Co-committed-by: Michael Jerger <michael.jerger@meissa-gmbh.de>
2025-08-03 11:55:01 +02:00

47 lines
1.6 KiB
Go

// Copyright 2024 The Forgejo Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package federation
import (
"context"
"net/http"
"forgejo.org/models/user"
"forgejo.org/modules/log"
ap "github.com/go-ap/activitypub"
)
func processPersonInboxUndo(ctx context.Context, ctxUser *user.User, activity *ap.Activity) (ServiceResult, error) {
if activity.Object.GetType() != ap.FollowType {
log.Error("Invalid object type for Undo activity: %v", activity.Object.GetType())
return ServiceResult{}, NewErrNotAcceptablef("Invalid object type for Undo activity: %v", activity.Object.GetType())
}
actorURI := activity.Actor.GetLink().String()
_, federatedUser, _, err := findFederatedUser(ctx, actorURI)
if err != nil {
log.Error("User not found: %v", err)
return ServiceResult{}, NewErrInternalf("User not found: %v", err)
}
if federatedUser != nil {
following, err := user.IsFollowingAp(ctx, ctxUser, federatedUser)
if err != nil {
log.Error("forgefed.IsFollowing: %v", err)
return ServiceResult{}, NewErrInternalf("forgefed.IsFollowing: %v", err)
}
if !following {
// The local user is not following the federated one, nothing to do.
log.Trace("Local user[%d] is not following federated user[%d]", ctxUser.ID, federatedUser.ID)
return NewServiceResultStatusOnly(http.StatusNoContent), nil
}
if err := user.RemoveFollower(ctx, ctxUser, federatedUser); err != nil {
log.Error("Unable to remove follower", err)
return ServiceResult{}, NewErrInternalf("Unable to remove follower: %v", err)
}
}
return NewServiceResultStatusOnly(http.StatusNoContent), nil
}