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/*
GoToSocial
Copyright (C) 2021 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 typeutils
import (
"github.com/go-fed/activity/streams/vocab"
"github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
)
// TypeConverter is an interface for the common action of converting between apimodule (frontend, serializable) models,
// internal gts models used in the database, and activitypub models used in federation.
//
// It requires access to the database because many of the conversions require pulling out database entries and counting them etc.
// That said, it *absolutely should not* manipulate database entries in any way, only examine them.
type TypeConverter interface {
/*
INTERNAL (gts) MODEL TO FRONTEND (mastodon) MODEL
*/
// AccountToMastoSensitive takes a db model account as a param, and returns a populated mastotype account, or an error
// if something goes wrong. The returned account should be ready to serialize on an API level, and may have sensitive fields,
// so serve it only to an authorized user who should have permission to see it.
AccountToMastoSensitive(account *gtsmodel.Account) (*model.Account, error)
// AccountToMastoPublic takes a db model account as a param, and returns a populated mastotype account, or an error
// if something goes wrong. The returned account should be ready to serialize on an API level, and may NOT have sensitive fields.
// In other words, this is the public record that the server has of an account.
AccountToMastoPublic(account *gtsmodel.Account) (*model.Account, error)
// AppToMastoSensitive takes a db model application as a param, and returns a populated mastotype application, or an error
// if something goes wrong. The returned application should be ready to serialize on an API level, and may have sensitive fields
// (such as client id and client secret), so serve it only to an authorized user who should have permission to see it.
AppToMastoSensitive(application *gtsmodel.Application) (*model.Application, error)
// AppToMastoPublic takes a db model application as a param, and returns a populated mastotype application, or an error
// if something goes wrong. The returned application should be ready to serialize on an API level, and has sensitive
// fields sanitized so that it can be served to non-authorized accounts without revealing any private information.
AppToMastoPublic(application *gtsmodel.Application) (*model.Application, error)
// AttachmentToMasto converts a gts model media attacahment into its mastodon representation for serialization on the API.
AttachmentToMasto(attachment *gtsmodel.MediaAttachment) (model.Attachment, error)
// MentionToMasto converts a gts model mention into its mastodon (frontend) representation for serialization on the API.
MentionToMasto(m *gtsmodel.Mention) (model.Mention, error)
// EmojiToMasto converts a gts model emoji into its mastodon (frontend) representation for serialization on the API.
EmojiToMasto(e *gtsmodel.Emoji) (model.Emoji, error)
// TagToMasto converts a gts model tag into its mastodon (frontend) representation for serialization on the API.
TagToMasto(t *gtsmodel.Tag) (model.Tag, error)
// StatusToMasto converts a gts model status into its mastodon (frontend) representation for serialization on the API.
StatusToMasto(s *gtsmodel.Status, targetAccount *gtsmodel.Account, requestingAccount *gtsmodel.Account, boostOfAccount *gtsmodel.Account, replyToAccount *gtsmodel.Account, reblogOfStatus *gtsmodel.Status) (*model.Status, error)
// VisToMasto converts a gts visibility into its mastodon equivalent
VisToMasto(m gtsmodel.Visibility) model.Visibility
/*
FRONTEND (mastodon) MODEL TO INTERNAL (gts) MODEL
*/
// MastoVisToVis converts a mastodon visibility into its gts equivalent.
MastoVisToVis(m model.Visibility) gtsmodel.Visibility
/*
ACTIVITYSTREAMS MODEL TO INTERNAL (gts) MODEL
*/
// ASPersonToAccount converts a remote account/person/application representation into a gts model account
ASRepresentationToAccount(accountable Accountable) (*gtsmodel.Account, error)
/*
INTERNAL (gts) MODEL TO ACTIVITYSTREAMS MODEL
*/
// AccountToAS converts a gts model account into an activity streams person, suitable for federation
AccountToAS(a *gtsmodel.Account) (vocab.ActivityStreamsPerson, error)
// StatusToAS converts a gts model status into an activity streams note, suitable for federation
StatusToAS(s *gtsmodel.Status) (vocab.ActivityStreamsNote, error)
}
type converter struct {
config *config.Config
db db.DB
}
// NewConverter returns a new Converter
func NewConverter(config *config.Config, db db.DB) TypeConverter {
return &converter{
config: config,
db: db,
}
}
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