gotosocial/internal/visibility/filter.go

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/*
GoToSocial
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Copyright (C) 2021-2022 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 visibility
import (
"context"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
)
// Filter packages up a bunch of logic for checking whether given statuses or accounts are visible to a requester.
type Filter interface {
// StatusVisible returns true if targetStatus is visible to requestingAccount, based on the
// privacy settings of the status, and any blocks/mutes that might exist between the two accounts
// or account domains, and other relevant accounts mentioned in or replied to by the status.
StatusVisible(ctx context.Context, targetStatus *gtsmodel.Status, requestingAccount *gtsmodel.Account) (bool, error)
// StatusesVisible calls StatusVisible for each status in the statuses slice, and returns a slice of only
// statuses which are visible to the requestingAccount.
StatusesVisible(ctx context.Context, statuses []*gtsmodel.Status, requestingAccount *gtsmodel.Account) ([]*gtsmodel.Status, error)
// StatusHometimelineable returns true if targetStatus should be in the home timeline of the requesting account.
//
// This function will call StatusVisible internally, so it's not necessary to call it beforehand.
StatusHometimelineable(ctx context.Context, targetStatus *gtsmodel.Status, requestingAccount *gtsmodel.Account) (bool, error)
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// StatusPublictimelineable returns true if targetStatus should be in the public timeline of the requesting account.
//
// This function will call StatusVisible internally, so it's not necessary to call it beforehand.
StatusPublictimelineable(ctx context.Context, targetStatus *gtsmodel.Status, timelineOwnerAccount *gtsmodel.Account) (bool, error)
}
type filter struct {
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db db.DB
}
// NewFilter returns a new Filter interface that will use the provided database.
func NewFilter(db db.DB) Filter {
return &filter{
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db: db,
}
}