start messing about with worker functions etc

internal/federation/federatingdb/interactionreqs.go

@@ -0,0 +1,152 @@
+// 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 federatingdb
+
+import (
+	"context"
+	"net/http"
+	"time"
+
+	"code.superseriousbusiness.org/activity/streams/vocab"
+	"code.superseriousbusiness.org/gotosocial/internal/ap"
+	"code.superseriousbusiness.org/gotosocial/internal/gtserror"
+	"code.superseriousbusiness.org/gotosocial/internal/gtsmodel"
+	"code.superseriousbusiness.org/gotosocial/internal/id"
+	"code.superseriousbusiness.org/gotosocial/internal/log"
+	"code.superseriousbusiness.org/gotosocial/internal/messages"
+)
+
+func (f *DB) LikeRequest(
+	ctx context.Context,
+	likeReq vocab.GoToSocialLikeRequest,
+) error {
+	log.DebugKV(ctx, "LikeRequest", serialize{likeReq})
+
+	// Mark activity as handled.
+	f.storeActivityID(likeReq)
+
+	// Extract relevant values from passed ctx.
+	activityContext := getActivityContext(ctx)
+	if activityContext.internal {
+		return nil // Already processed.
+	}
+
+	requesting := activityContext.requestingAcct
+	receiving := activityContext.receivingAcct
+
+	if receiving.IsMoving() {
+		// A Moving account
+		// can't accept a Like.
+		return nil
+	}
+
+	// Convert received LikeRequest type to dummy
+	// fave, so that we can check against policies.
+	// This dummy won't be stored in the database,
+	// it's used purely for doing permission checks.
+	dummyFave, err := f.converter.ASLikeToFave(ctx, likeReq)
+	if err != nil {
+		err := gtserror.Newf("error converting from AS type: %w", err)
+		return gtserror.WrapWithCode(http.StatusBadRequest, err)
+	}
+
+	if !*dummyFave.Status.Local {
+		// Only process like requests for local statuses.
+		//
+		// If the remote has sent us a like request for a
+		// status that's not ours, we should ignore it.
+		return nil
+	}
+
+	// Ensure fave would be enacted by correct account.
+	if dummyFave.AccountID != requesting.ID {
+		return gtserror.NewfWithCode(http.StatusForbidden, "requester %s is not expected actor %s",
+			requesting.URI, dummyFave.Account.URI)
+	}
+
+	// Ensure fave would be received by correct account.
+	if dummyFave.TargetAccountID != receiving.ID {
+		return gtserror.NewfWithCode(http.StatusForbidden, "receiver %s is not expected object %s",
+			receiving.URI, dummyFave.TargetAccount.URI)
+	}
+
+	// Check how we should handle this request.
+	policyResult, err := f.intFilter.StatusLikeable(ctx,
+		requesting,
+		dummyFave.Status,
+	)
+	if err != nil {
+		return gtserror.Newf("error seeing if status %s is likeable: %w", dummyFave.Status.URI, err)
+	}
+
+	// Determine whether to automatically accept,
+	// automatically reject, or pend approval.
+	var (
+		acceptedAt time.Time
+		rejectedAt time.Time
+	)
+	if policyResult.AutomaticApproval() {
+		acceptedAt = time.Now()
+	} else if policyResult.Forbidden() {
+		rejectedAt = time.Now()
+	}
+
+	interactionReq := &gtsmodel.InteractionRequest{
+		ID:                   id.NewULID(),
+		StatusID:             dummyFave.Status.ID,
+		Status:               dummyFave.Status,
+		TargetAccountID:      receiving.ID,
+		TargetAccount:        receiving,
+		InteractingAccountID: requesting.ID,
+		InteractingAccount:   requesting,
+		InteractionURI:       dummyFave.URI,
+		InteractionType:      gtsmodel.InteractionLikeRequest,
+		AcceptedAt:           acceptedAt,
+		RejectedAt:           rejectedAt,
+
+		// Empty as reject/accept
+		// response not yet sent.
+		URI: "",
+	}
+
+	// Send the interactionReq through to
+	// the processor to handle side effects.
+	f.state.Workers.Federator.Queue.Push(&messages.FromFediAPI{
+		APObjectType:   ap.ActivityLikeRequest,
+		APActivityType: ap.ActivityCreate,
+		GTSModel:       interactionReq,
+		Receiving:      receiving,
+		Requesting:     requesting,
+	})
+
+	return nil
+}
+
+func (f *DB) ReplyRequest(
+	ctx context.Context,
+	replyReq vocab.GoToSocialReplyRequest,
+) error {
+	return nil
+}
+
+func (f *DB) AnnounceRequest(
+	ctx context.Context,
+	announceReq vocab.GoToSocialAnnounceRequest,
+) error {
+	return nil
+}