mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-15 19:56:38 +00:00
291 lines
8.8 KiB
Go
291 lines
8.8 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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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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//
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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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//
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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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package status
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import (
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"context"
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"errors"
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"fmt"
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"github.com/superseriousbusiness/gotosocial/internal/ap"
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apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/gtserror"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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"github.com/superseriousbusiness/gotosocial/internal/messages"
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"github.com/superseriousbusiness/gotosocial/internal/util"
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)
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// BoostCreate processes the boost/reblog of target
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// status, returning the newly-created boost.
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func (p *Processor) BoostCreate(
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ctx context.Context,
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requester *gtsmodel.Account,
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application *gtsmodel.Application,
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targetID string,
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) (*apimodel.Status, gtserror.WithCode) {
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// Get target status and ensure it's not a boost.
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target, errWithCode := p.c.GetVisibleTargetStatus(
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ctx,
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requester,
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targetID,
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nil, // default freshness
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)
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if errWithCode != nil {
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return nil, errWithCode
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}
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// Unwrap target in case it is a boost.
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target, errWithCode = p.c.UnwrapIfBoost(
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ctx,
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requester,
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target,
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)
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if errWithCode != nil {
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return nil, errWithCode
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}
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// Check is viable target.
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if target.BoostOfID != "" {
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err := gtserror.Newf("target status %s is boost wrapper", target.URI)
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return nil, gtserror.NewErrorUnprocessableEntity(err)
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}
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// Ensure valid boost target for requester.
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policyResult, err := p.intFilter.StatusBoostable(ctx,
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requester,
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target,
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)
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if err != nil {
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err := gtserror.Newf("error seeing if status %s is boostable: %w", target.ID, err)
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return nil, gtserror.NewErrorInternalError(err)
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}
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if policyResult.Forbidden() {
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const errText = "you do not have permission to boost this status"
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err := gtserror.New(errText)
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return nil, gtserror.NewErrorForbidden(err, errText)
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}
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// Status is visible and boostable
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// (though maybe pending approval).
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boost, err := p.converter.StatusToBoost(ctx,
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target,
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requester,
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application.ID,
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)
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if err != nil {
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return nil, gtserror.NewErrorInternalError(err)
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}
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// Derive pendingApproval status.
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var pendingApproval bool
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switch {
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case policyResult.WithApproval():
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// We're allowed to do
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// this pending approval.
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pendingApproval = true
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case policyResult.MatchedOnCollection():
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// We're permitted to do this, but since
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// we matched due to presence in a followers
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// or following collection, we should mark
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// as pending approval and wait until we can
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// prove it's been Accepted by the target.
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pendingApproval = true
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if *target.Local {
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// If the target is local we don't need
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// to wait for an Accept from remote,
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// we can just preapprove it and have
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// the processor create the Accept.
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boost.PreApproved = true
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}
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case policyResult.Permitted():
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// We're permitted to do this
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// based on another kind of match.
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pendingApproval = false
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}
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boost.PendingApproval = &pendingApproval
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// Store the new boost.
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if err := p.state.DB.PutStatus(ctx, boost); err != nil {
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return nil, gtserror.NewErrorInternalError(err)
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}
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// Process side effects asynchronously.
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p.state.Workers.Client.Queue.Push(&messages.FromClientAPI{
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APObjectType: ap.ActivityAnnounce,
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APActivityType: ap.ActivityCreate,
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GTSModel: boost,
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Origin: requester,
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Target: target.Account,
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})
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// If the boost target status replies to a status
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// that we own, and has a pending interaction
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// request, use the boost as an implicit accept.
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implicitlyAccepted, errWithCode := p.implicitlyAccept(ctx,
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requester, target,
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)
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if errWithCode != nil {
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return nil, errWithCode
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}
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// If we ended up implicitly accepting, mark the
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// target status as no longer pending approval so
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// it's serialized properly via the API.
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if implicitlyAccepted {
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target.PendingApproval = util.Ptr(false)
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}
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return p.c.GetAPIStatus(ctx, requester, boost)
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}
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// BoostRemove processes the unboost/unreblog of
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// target status, returning the target status.
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func (p *Processor) BoostRemove(
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ctx context.Context,
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requester *gtsmodel.Account,
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application *gtsmodel.Application,
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targetID string,
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) (*apimodel.Status, gtserror.WithCode) {
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// Get target status and ensure it's not a boost.
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target, errWithCode := p.c.GetVisibleTargetStatus(
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ctx,
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requester,
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targetID,
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nil, // default freshness
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)
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if errWithCode != nil {
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return nil, errWithCode
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}
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target, errWithCode = p.c.UnwrapIfBoost(
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ctx,
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requester,
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target,
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)
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if errWithCode != nil {
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return nil, errWithCode
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}
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// Check whether requester has actually
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// boosted target, by trying to get the boost.
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boost, err := p.state.DB.GetStatusBoost(ctx,
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target.ID,
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requester.ID,
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)
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if err != nil && !errors.Is(err, db.ErrNoEntries) {
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err = gtserror.Newf("db error getting boost of %s: %w", target.ID, err)
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return nil, gtserror.NewErrorInternalError(err)
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}
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if boost != nil {
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// Status was boosted. Process unboost side effects asynchronously.
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p.state.Workers.Client.Queue.Push(&messages.FromClientAPI{
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APObjectType: ap.ActivityAnnounce,
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APActivityType: ap.ActivityUndo,
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GTSModel: boost,
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Origin: requester,
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Target: target.Account,
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})
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}
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return p.c.GetAPIStatus(ctx, requester, target)
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}
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// StatusBoostedBy returns a slice of accounts that have boosted the given status, filtered according to privacy settings.
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func (p *Processor) StatusBoostedBy(ctx context.Context, requestingAccount *gtsmodel.Account, targetStatusID string) ([]*apimodel.Account, gtserror.WithCode) {
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targetStatus, err := p.state.DB.GetStatusByID(ctx, targetStatusID)
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if err != nil {
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wrapped := fmt.Errorf("BoostedBy: error fetching status %s: %s", targetStatusID, err)
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if !errors.Is(err, db.ErrNoEntries) {
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return nil, gtserror.NewErrorInternalError(wrapped)
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}
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return nil, gtserror.NewErrorNotFound(wrapped)
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}
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if boostOfID := targetStatus.BoostOfID; boostOfID != "" {
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// the target status is a boost wrapper, redirect this request to the status it boosts
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boostedStatus, err := p.state.DB.GetStatusByID(ctx, boostOfID)
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if err != nil {
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wrapped := fmt.Errorf("BoostedBy: error fetching status %s: %s", boostOfID, err)
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if !errors.Is(err, db.ErrNoEntries) {
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return nil, gtserror.NewErrorInternalError(wrapped)
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}
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return nil, gtserror.NewErrorNotFound(wrapped)
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}
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targetStatus = boostedStatus
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}
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visible, err := p.visFilter.StatusVisible(ctx, requestingAccount, targetStatus)
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if err != nil {
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err = fmt.Errorf("BoostedBy: error seeing if status %s is visible: %s", targetStatus.ID, err)
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return nil, gtserror.NewErrorNotFound(err)
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}
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if !visible {
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err = errors.New("BoostedBy: status is not visible")
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return nil, gtserror.NewErrorNotFound(err)
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}
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statusBoosts, err := p.state.DB.GetStatusBoosts(ctx, targetStatus.ID)
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if err != nil {
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err = fmt.Errorf("BoostedBy: error seeing who boosted status: %s", err)
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return nil, gtserror.NewErrorNotFound(err)
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}
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// filter account IDs so the user doesn't see accounts they blocked or which blocked them
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accountIDs := make([]string, 0, len(statusBoosts))
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for _, s := range statusBoosts {
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blocked, err := p.state.DB.IsEitherBlocked(ctx, requestingAccount.ID, s.AccountID)
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if err != nil {
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err = fmt.Errorf("BoostedBy: error checking blocks: %s", err)
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return nil, gtserror.NewErrorNotFound(err)
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}
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if !blocked {
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accountIDs = append(accountIDs, s.AccountID)
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}
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}
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// TODO: filter other things here? suspended? muted? silenced?
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// fetch accounts + create their API representations
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apiAccounts := make([]*apimodel.Account, 0, len(accountIDs))
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for _, accountID := range accountIDs {
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account, err := p.state.DB.GetAccountByID(ctx, accountID)
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if err != nil {
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wrapped := fmt.Errorf("BoostedBy: error fetching account %s: %s", accountID, err)
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if !errors.Is(err, db.ErrNoEntries) {
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return nil, gtserror.NewErrorInternalError(wrapped)
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}
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return nil, gtserror.NewErrorNotFound(wrapped)
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}
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apiAccount, err := p.converter.AccountToAPIAccountPublic(ctx, account)
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if err != nil {
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err = fmt.Errorf("BoostedBy: error converting account to api model: %s", err)
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return nil, gtserror.NewErrorInternalError(err)
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}
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apiAccounts = append(apiAccounts, apiAccount)
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}
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return apiAccounts, nil
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}
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