143 lines
7.4 KiB
Go
143 lines
7.4 KiB
Go
/*
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GoToSocial
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Copyright (C) 2021 GoToSocial Authors admin@gotosocial.org
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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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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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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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*/
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package typeutils
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import (
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"github.com/go-fed/activity/streams/vocab"
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"github.com/superseriousbusiness/gotosocial/internal/api/model"
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"github.com/superseriousbusiness/gotosocial/internal/config"
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"github.com/superseriousbusiness/gotosocial/internal/db"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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)
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const (
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asPublicURI = "https://www.w3.org/ns/activitystreams#Public"
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)
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// TypeConverter is an interface for the common action of converting between apimodule (frontend, serializable) models,
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// internal gts models used in the database, and activitypub models used in federation.
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//
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// It requires access to the database because many of the conversions require pulling out database entries and counting them etc.
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// That said, it *absolutely should not* manipulate database entries in any way, only examine them.
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type TypeConverter interface {
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/*
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INTERNAL (gts) MODEL TO FRONTEND (mastodon) MODEL
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*/
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// AccountToMastoSensitive takes a db model account as a param, and returns a populated mastotype account, or an error
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// if something goes wrong. The returned account should be ready to serialize on an API level, and may have sensitive fields,
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// so serve it only to an authorized user who should have permission to see it.
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AccountToMastoSensitive(account *gtsmodel.Account) (*model.Account, error)
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// AccountToMastoPublic takes a db model account as a param, and returns a populated mastotype account, or an error
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// if something goes wrong. The returned account should be ready to serialize on an API level, and may NOT have sensitive fields.
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// In other words, this is the public record that the server has of an account.
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AccountToMastoPublic(account *gtsmodel.Account) (*model.Account, error)
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// AppToMastoSensitive takes a db model application as a param, and returns a populated mastotype application, or an error
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// if something goes wrong. The returned application should be ready to serialize on an API level, and may have sensitive fields
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// (such as client id and client secret), so serve it only to an authorized user who should have permission to see it.
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AppToMastoSensitive(application *gtsmodel.Application) (*model.Application, error)
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// AppToMastoPublic takes a db model application as a param, and returns a populated mastotype application, or an error
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// if something goes wrong. The returned application should be ready to serialize on an API level, and has sensitive
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// fields sanitized so that it can be served to non-authorized accounts without revealing any private information.
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AppToMastoPublic(application *gtsmodel.Application) (*model.Application, error)
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// AttachmentToMasto converts a gts model media attacahment into its mastodon representation for serialization on the API.
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AttachmentToMasto(attachment *gtsmodel.MediaAttachment) (model.Attachment, error)
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// MentionToMasto converts a gts model mention into its mastodon (frontend) representation for serialization on the API.
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MentionToMasto(m *gtsmodel.Mention) (model.Mention, error)
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// EmojiToMasto converts a gts model emoji into its mastodon (frontend) representation for serialization on the API.
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EmojiToMasto(e *gtsmodel.Emoji) (model.Emoji, error)
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// TagToMasto converts a gts model tag into its mastodon (frontend) representation for serialization on the API.
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TagToMasto(t *gtsmodel.Tag) (model.Tag, error)
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// StatusToMasto converts a gts model status into its mastodon (frontend) representation for serialization on the API.
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StatusToMasto(s *gtsmodel.Status, targetAccount *gtsmodel.Account, requestingAccount *gtsmodel.Account, boostOfAccount *gtsmodel.Account, replyToAccount *gtsmodel.Account, reblogOfStatus *gtsmodel.Status) (*model.Status, error)
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// VisToMasto converts a gts visibility into its mastodon equivalent
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VisToMasto(m gtsmodel.Visibility) model.Visibility
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// InstanceToMasto converts a gts instance into its mastodon equivalent for serving at /api/v1/instance
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InstanceToMasto(i *gtsmodel.Instance) (*model.Instance, error)
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// RelationshipToMasto converts a gts relationship into its mastodon equivalent for serving in various places
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RelationshipToMasto(r *gtsmodel.Relationship) (*model.Relationship, error)
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/*
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FRONTEND (mastodon) MODEL TO INTERNAL (gts) MODEL
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*/
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// MastoVisToVis converts a mastodon visibility into its gts equivalent.
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MastoVisToVis(m model.Visibility) gtsmodel.Visibility
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/*
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ACTIVITYSTREAMS MODEL TO INTERNAL (gts) MODEL
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*/
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// ASPersonToAccount converts a remote account/person/application representation into a gts model account.
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//
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// If update is false, and the account is already known in the database, then the existing account entry will be returned.
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// If update is true, then even if the account is already known, all fields in the accountable will be parsed and a new *gtsmodel.Account
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// will be generated. This is useful when one needs to force refresh of an account, eg., during an Update of a Profile.
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ASRepresentationToAccount(accountable Accountable, update bool) (*gtsmodel.Account, error)
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// ASStatus converts a remote activitystreams 'status' representation into a gts model status.
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ASStatusToStatus(statusable Statusable) (*gtsmodel.Status, error)
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// ASFollowToFollowRequest converts a remote activitystreams `follow` representation into gts model follow request.
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ASFollowToFollowRequest(followable Followable) (*gtsmodel.FollowRequest, error)
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// ASFollowToFollowRequest converts a remote activitystreams `follow` representation into gts model follow.
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ASFollowToFollow(followable Followable) (*gtsmodel.Follow, error)
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/*
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INTERNAL (gts) MODEL TO ACTIVITYSTREAMS MODEL
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*/
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// AccountToAS converts a gts model account into an activity streams person, suitable for federation
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AccountToAS(a *gtsmodel.Account) (vocab.ActivityStreamsPerson, error)
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// StatusToAS converts a gts model status into an activity streams note, suitable for federation
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StatusToAS(s *gtsmodel.Status) (vocab.ActivityStreamsNote, error)
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// FollowToASFollow converts a gts model Follow into an activity streams Follow, suitable for federation
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FollowToAS(f *gtsmodel.Follow, originAccount *gtsmodel.Account, targetAccount *gtsmodel.Account) (vocab.ActivityStreamsFollow, error)
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// MentionToAS converts a gts model mention into an activity streams Mention, suitable for federation
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MentionToAS(m *gtsmodel.Mention) (vocab.ActivityStreamsMention, error)
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// AttachmentToAS converts a gts model media attachment into an activity streams Attachment, suitable for federation
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AttachmentToAS(a *gtsmodel.MediaAttachment) (vocab.ActivityStreamsDocument, error)
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}
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type converter struct {
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config *config.Config
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db db.DB
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}
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// NewConverter returns a new Converter
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func NewConverter(config *config.Config, db db.DB) TypeConverter {
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return &converter{
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config: config,
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db: db,
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}
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}
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