typeutils

package
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Published: Sep 29, 2022 License: AGPL-3.0 Imports: 27 Imported by: 0

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Types

type TypeConverter

type TypeConverter interface {

	// AccountToAPIAccountSensitive takes a db model account as a param, and returns a populated apitype 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.
	AccountToAPIAccountSensitive(ctx context.Context, account *gtsmodel.Account) (*model.Account, error)
	// AccountToAPIAccountPublic takes a db model account as a param, and returns a populated apitype 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.
	AccountToAPIAccountPublic(ctx context.Context, account *gtsmodel.Account) (*model.Account, error)
	// AccountToAPIAccountBlocked takes a db model account as a param, and returns a apitype account, or an error if
	// something goes wrong. The returned account will be a bare minimum representation of the account. This function should be used
	// when someone wants to view an account they've blocked.
	AccountToAPIAccountBlocked(ctx context.Context, account *gtsmodel.Account) (*model.Account, error)
	// AppToAPIAppSensitive takes a db model application as a param, and returns a populated apitype 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.
	AppToAPIAppSensitive(ctx context.Context, application *gtsmodel.Application) (*model.Application, error)
	// AppToAPIAppPublic takes a db model application as a param, and returns a populated apitype 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.
	AppToAPIAppPublic(ctx context.Context, application *gtsmodel.Application) (*model.Application, error)
	// AttachmentToAPIAttachment converts a gts model media attacahment into its api representation for serialization on the API.
	AttachmentToAPIAttachment(ctx context.Context, attachment *gtsmodel.MediaAttachment) (model.Attachment, error)
	// MentionToAPIMention converts a gts model mention into its api (frontend) representation for serialization on the API.
	MentionToAPIMention(ctx context.Context, m *gtsmodel.Mention) (model.Mention, error)
	// EmojiToAPIEmoji converts a gts model emoji into its api (frontend) representation for serialization on the API.
	EmojiToAPIEmoji(ctx context.Context, e *gtsmodel.Emoji) (model.Emoji, error)
	// TagToAPITag converts a gts model tag into its api (frontend) representation for serialization on the API.
	TagToAPITag(ctx context.Context, t *gtsmodel.Tag) (model.Tag, error)
	// StatusToAPIStatus converts a gts model status into its api (frontend) representation for serialization on the API.
	//
	// Requesting account can be nil.
	StatusToAPIStatus(ctx context.Context, s *gtsmodel.Status, requestingAccount *gtsmodel.Account) (*model.Status, error)
	// VisToAPIVis converts a gts visibility into its api equivalent
	VisToAPIVis(ctx context.Context, m gtsmodel.Visibility) model.Visibility
	// InstanceToAPIInstance converts a gts instance into its api equivalent for serving at /api/v1/instance
	InstanceToAPIInstance(ctx context.Context, i *gtsmodel.Instance) (*model.Instance, error)
	// RelationshipToAPIRelationship converts a gts relationship into its api equivalent for serving in various places
	RelationshipToAPIRelationship(ctx context.Context, r *gtsmodel.Relationship) (*model.Relationship, error)
	// NotificationToAPINotification converts a gts notification into a api notification
	NotificationToAPINotification(ctx context.Context, n *gtsmodel.Notification) (*model.Notification, error)
	// DomainBlockToAPIDomainBlock converts a gts model domin block into a api domain block, for serving at /api/v1/admin/domain_blocks
	DomainBlockToAPIDomainBlock(ctx context.Context, b *gtsmodel.DomainBlock, export bool) (*model.DomainBlock, error)

	// APIVisToVis converts an API model visibility into its internal gts equivalent.
	APIVisToVis(m model.Visibility) gtsmodel.Visibility

	// ASPersonToAccount converts a remote account/person/application representation into a gts model account.
	//
	// If update is false, and the account is already known in the database, then the existing account entry will be returned.
	// 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
	// will be generated. This is useful when one needs to force refresh of an account, eg., during an Update of a Profile.
	//
	// If accountDomain is set (not an empty string) then this value will be used as the account's Domain. If not set,
	// then the Host of the accountable's AP ID will be used instead.
	ASRepresentationToAccount(ctx context.Context, accountable ap.Accountable, accountDomain string, update bool) (*gtsmodel.Account, error)
	// ASStatus converts a remote activitystreams 'status' representation into a gts model status.
	ASStatusToStatus(ctx context.Context, statusable ap.Statusable) (*gtsmodel.Status, error)
	// ASFollowToFollowRequest converts a remote activitystreams `follow` representation into gts model follow request.
	ASFollowToFollowRequest(ctx context.Context, followable ap.Followable) (*gtsmodel.FollowRequest, error)
	// ASFollowToFollowRequest converts a remote activitystreams `follow` representation into gts model follow.
	ASFollowToFollow(ctx context.Context, followable ap.Followable) (*gtsmodel.Follow, error)
	// ASLikeToFave converts a remote activitystreams 'like' representation into a gts model status fave.
	ASLikeToFave(ctx context.Context, likeable ap.Likeable) (*gtsmodel.StatusFave, error)
	// ASBlockToBlock converts a remote activity streams 'block' representation into a gts model block.
	ASBlockToBlock(ctx context.Context, blockable ap.Blockable) (*gtsmodel.Block, error)
	// ASAnnounceToStatus converts an activitystreams 'announce' into a status.
	//
	// The returned bool indicates whether this status is new (true) or not new (false).
	//
	// In other words, if the status is already in the database with the ID set on the announceable, then that will be returned,
	// the returned bool will be false, and no further processing is necessary. If the returned bool is true, indicating
	// that this is a new announce, then further processing will be necessary, because the returned status will be bareboned and
	// require further dereferencing.
	//
	// This is useful when multiple users on an instance might receive the same boost, and we only want to process the boost once.
	//
	// NOTE -- this is different from one status being boosted multiple times! In this case, new boosts should indeed be created.
	ASAnnounceToStatus(ctx context.Context, announceable ap.Announceable) (status *gtsmodel.Status, new bool, err error)

	// AccountToAS converts a gts model account into an activity streams person, suitable for federation
	AccountToAS(ctx context.Context, a *gtsmodel.Account) (vocab.ActivityStreamsPerson, error)
	// AccountToASMinimal converts a gts model account into an activity streams person, suitable for federation.
	//
	// The returned account will just have the Type, Username, PublicKey, and ID properties set. This is
	// suitable for serving to requesters to whom we want to give as little information as possible because
	// we don't trust them (yet).
	AccountToASMinimal(ctx context.Context, a *gtsmodel.Account) (vocab.ActivityStreamsPerson, error)
	// StatusToAS converts a gts model status into an activity streams note, suitable for federation
	StatusToAS(ctx context.Context, s *gtsmodel.Status) (vocab.ActivityStreamsNote, error)
	// FollowToASFollow converts a gts model Follow into an activity streams Follow, suitable for federation
	FollowToAS(ctx context.Context, f *gtsmodel.Follow, originAccount *gtsmodel.Account, targetAccount *gtsmodel.Account) (vocab.ActivityStreamsFollow, error)
	// MentionToAS converts a gts model mention into an activity streams Mention, suitable for federation
	MentionToAS(ctx context.Context, m *gtsmodel.Mention) (vocab.ActivityStreamsMention, error)
	// EmojiToAS converts a gts emoji into a mastodon ns Emoji, suitable for federation
	EmojiToAS(ctx context.Context, e *gtsmodel.Emoji) (vocab.TootEmoji, error)
	// AttachmentToAS converts a gts model media attachment into an activity streams Attachment, suitable for federation
	AttachmentToAS(ctx context.Context, a *gtsmodel.MediaAttachment) (vocab.ActivityStreamsDocument, error)
	// FaveToAS converts a gts model status fave into an activityStreams LIKE, suitable for federation.
	FaveToAS(ctx context.Context, f *gtsmodel.StatusFave) (vocab.ActivityStreamsLike, error)
	// BoostToAS converts a gts model boost into an activityStreams ANNOUNCE, suitable for federation
	BoostToAS(ctx context.Context, boostWrapperStatus *gtsmodel.Status, boostingAccount *gtsmodel.Account, boostedAccount *gtsmodel.Account) (vocab.ActivityStreamsAnnounce, error)
	// BlockToAS converts a gts model block into an activityStreams BLOCK, suitable for federation.
	BlockToAS(ctx context.Context, block *gtsmodel.Block) (vocab.ActivityStreamsBlock, error)
	// StatusToASRepliesCollection converts a gts model status into an activityStreams REPLIES collection.
	StatusToASRepliesCollection(ctx context.Context, status *gtsmodel.Status, onlyOtherAccounts bool) (vocab.ActivityStreamsCollection, error)
	// StatusURIsToASRepliesPage returns a collection page with appropriate next/part of pagination.
	StatusURIsToASRepliesPage(ctx context.Context, status *gtsmodel.Status, onlyOtherAccounts bool, minID string, replies map[string]*url.URL) (vocab.ActivityStreamsCollectionPage, error)
	// OutboxToASCollection returns an ordered collection with appropriate id, next, and last fields.
	// The returned collection won't have any actual entries; just links to where entries can be obtained.
	OutboxToASCollection(ctx context.Context, outboxID string) (vocab.ActivityStreamsOrderedCollection, error)
	// StatusesToASOutboxPage returns an ordered collection page using the given statuses and parameters as contents.
	//
	// The maxID and minID should be the parameters that were passed to the database to obtain the given statuses.
	// These will be used to create the 'id' field of the collection.
	//
	// OutboxID is used to create the 'partOf' field in the collection.
	//
	// Appropriate 'next' and 'prev' fields will be created based on the highest and lowest IDs present in the statuses slice.
	StatusesToASOutboxPage(ctx context.Context, outboxID string, maxID string, minID string, statuses []*gtsmodel.Status) (vocab.ActivityStreamsOrderedCollectionPage, error)

	// FollowRequestToFollow just converts a follow request into a follow, that's it! No bells and whistles.
	FollowRequestToFollow(ctx context.Context, f *gtsmodel.FollowRequest) *gtsmodel.Follow
	// StatusToBoost wraps the given status into a boosting status.
	StatusToBoost(ctx context.Context, s *gtsmodel.Status, boostingAccount *gtsmodel.Account) (*gtsmodel.Status, error)

	// WrapPersonInUpdate
	WrapPersonInUpdate(person vocab.ActivityStreamsPerson, originAccount *gtsmodel.Account) (vocab.ActivityStreamsUpdate, error)
	// WrapNoteInCreate wraps a Note with a Create activity.
	//
	// If objectIRIOnly is set to true, then the function won't put the *entire* note in the Object field of the Create,
	// but just the AP URI of the note. This is useful in cases where you want to give a remote server something to dereference,
	// and still have control over whether or not they're allowed to actually see the contents.
	WrapNoteInCreate(note vocab.ActivityStreamsNote, objectIRIOnly bool) (vocab.ActivityStreamsCreate, error)
}

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.

func NewConverter

func NewConverter(db db.DB) TypeConverter

NewConverter returns a new Converter

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