6f5c045284
Big restructuring and initial work on activitypub
261 lines
7.9 KiB
Go
261 lines
7.9 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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"crypto/x509"
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"encoding/pem"
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"net/url"
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"github.com/go-fed/activity/streams"
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"github.com/go-fed/activity/streams/vocab"
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"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
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)
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// Converts a gts model account into an Activity Streams person type, following
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// the spec laid out for mastodon here: https://docs.joinmastodon.org/spec/activitypub/
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func (c *converter) AccountToAS(a *gtsmodel.Account) (vocab.ActivityStreamsPerson, error) {
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person := streams.NewActivityStreamsPerson()
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// id should be the activitypub URI of this user
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// something like https://example.org/users/example_user
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profileIDURI, err := url.Parse(a.URI)
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if err != nil {
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return nil, err
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}
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idProp := streams.NewJSONLDIdProperty()
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idProp.SetIRI(profileIDURI)
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person.SetJSONLDId(idProp)
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// following
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// The URI for retrieving a list of accounts this user is following
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followingURI, err := url.Parse(a.FollowingURI)
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if err != nil {
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return nil, err
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}
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followingProp := streams.NewActivityStreamsFollowingProperty()
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followingProp.SetIRI(followingURI)
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person.SetActivityStreamsFollowing(followingProp)
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// followers
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// The URI for retrieving a list of this user's followers
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followersURI, err := url.Parse(a.FollowersURI)
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if err != nil {
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return nil, err
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}
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followersProp := streams.NewActivityStreamsFollowersProperty()
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followersProp.SetIRI(followersURI)
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person.SetActivityStreamsFollowers(followersProp)
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// inbox
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// the activitypub inbox of this user for accepting messages
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inboxURI, err := url.Parse(a.InboxURI)
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if err != nil {
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return nil, err
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}
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inboxProp := streams.NewActivityStreamsInboxProperty()
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inboxProp.SetIRI(inboxURI)
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person.SetActivityStreamsInbox(inboxProp)
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// outbox
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// the activitypub outbox of this user for serving messages
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outboxURI, err := url.Parse(a.OutboxURI)
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if err != nil {
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return nil, err
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}
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outboxProp := streams.NewActivityStreamsOutboxProperty()
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outboxProp.SetIRI(outboxURI)
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person.SetActivityStreamsOutbox(outboxProp)
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// featured posts
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// Pinned posts.
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featuredURI, err := url.Parse(a.FeaturedCollectionURI)
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if err != nil {
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return nil, err
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}
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featuredProp := streams.NewTootFeaturedProperty()
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featuredProp.SetIRI(featuredURI)
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person.SetTootFeatured(featuredProp)
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// featuredTags
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// NOT IMPLEMENTED
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// preferredUsername
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// Used for Webfinger lookup. Must be unique on the domain, and must correspond to a Webfinger acct: URI.
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preferredUsernameProp := streams.NewActivityStreamsPreferredUsernameProperty()
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preferredUsernameProp.SetXMLSchemaString(a.Username)
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person.SetActivityStreamsPreferredUsername(preferredUsernameProp)
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// name
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// Used as profile display name.
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nameProp := streams.NewActivityStreamsNameProperty()
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if a.Username != "" {
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nameProp.AppendXMLSchemaString(a.DisplayName)
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} else {
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nameProp.AppendXMLSchemaString(a.Username)
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}
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person.SetActivityStreamsName(nameProp)
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// summary
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// Used as profile bio.
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if a.Note != "" {
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summaryProp := streams.NewActivityStreamsSummaryProperty()
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summaryProp.AppendXMLSchemaString(a.Note)
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person.SetActivityStreamsSummary(summaryProp)
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}
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// url
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// Used as profile link.
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profileURL, err := url.Parse(a.URL)
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if err != nil {
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return nil, err
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}
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urlProp := streams.NewActivityStreamsUrlProperty()
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urlProp.AppendIRI(profileURL)
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person.SetActivityStreamsUrl(urlProp)
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// manuallyApprovesFollowers
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// Will be shown as a locked account.
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// TODO: NOT IMPLEMENTED **YET** -- this needs to be added as an activitypub extension to https://github.com/go-fed/activity, see https://github.com/go-fed/activity/tree/master/astool
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// discoverable
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// Will be shown in the profile directory.
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discoverableProp := streams.NewTootDiscoverableProperty()
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discoverableProp.Set(a.Discoverable)
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person.SetTootDiscoverable(discoverableProp)
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// devices
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// NOT IMPLEMENTED, probably won't implement
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// alsoKnownAs
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// Required for Move activity.
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// TODO: NOT IMPLEMENTED **YET** -- this needs to be added as an activitypub extension to https://github.com/go-fed/activity, see https://github.com/go-fed/activity/tree/master/astool
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// publicKey
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// Required for signatures.
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publicKeyProp := streams.NewW3IDSecurityV1PublicKeyProperty()
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// create the public key
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publicKey := streams.NewW3IDSecurityV1PublicKey()
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// set ID for the public key
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publicKeyIDProp := streams.NewJSONLDIdProperty()
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publicKeyURI, err := url.Parse(a.PublicKeyURI)
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if err != nil {
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return nil, err
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}
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publicKeyIDProp.SetIRI(publicKeyURI)
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publicKey.SetJSONLDId(publicKeyIDProp)
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// set owner for the public key
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publicKeyOwnerProp := streams.NewW3IDSecurityV1OwnerProperty()
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publicKeyOwnerProp.SetIRI(profileIDURI)
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publicKey.SetW3IDSecurityV1Owner(publicKeyOwnerProp)
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// set the pem key itself
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encodedPublicKey, err := x509.MarshalPKIXPublicKey(a.PublicKey)
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if err != nil {
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return nil, err
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}
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publicKeyBytes := pem.EncodeToMemory(&pem.Block{
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Type: "PUBLIC KEY",
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Bytes: encodedPublicKey,
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})
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publicKeyPEMProp := streams.NewW3IDSecurityV1PublicKeyPemProperty()
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publicKeyPEMProp.Set(string(publicKeyBytes))
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publicKey.SetW3IDSecurityV1PublicKeyPem(publicKeyPEMProp)
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// append the public key to the public key property
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publicKeyProp.AppendW3IDSecurityV1PublicKey(publicKey)
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// set the public key property on the Person
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person.SetW3IDSecurityV1PublicKey(publicKeyProp)
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// tag
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// TODO: Any tags used in the summary of this profile
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// attachment
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// Used for profile fields.
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// TODO: The PropertyValue type has to be added: https://schema.org/PropertyValue
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// endpoints
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// NOT IMPLEMENTED -- this is for shared inbox which we don't use
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// icon
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// Used as profile avatar.
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if a.AvatarMediaAttachmentID != "" {
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iconProperty := streams.NewActivityStreamsIconProperty()
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iconImage := streams.NewActivityStreamsImage()
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avatar := >smodel.MediaAttachment{}
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if err := c.db.GetByID(a.AvatarMediaAttachmentID, avatar); err != nil {
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return nil, err
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}
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mediaType := streams.NewActivityStreamsMediaTypeProperty()
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mediaType.Set(avatar.File.ContentType)
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iconImage.SetActivityStreamsMediaType(mediaType)
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avatarURLProperty := streams.NewActivityStreamsUrlProperty()
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avatarURL, err := url.Parse(avatar.URL)
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if err != nil {
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return nil, err
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}
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avatarURLProperty.AppendIRI(avatarURL)
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iconImage.SetActivityStreamsUrl(avatarURLProperty)
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iconProperty.AppendActivityStreamsImage(iconImage)
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person.SetActivityStreamsIcon(iconProperty)
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}
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// image
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// Used as profile header.
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if a.HeaderMediaAttachmentID != "" {
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headerProperty := streams.NewActivityStreamsImageProperty()
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headerImage := streams.NewActivityStreamsImage()
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header := >smodel.MediaAttachment{}
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if err := c.db.GetByID(a.HeaderMediaAttachmentID, header); err != nil {
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return nil, err
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}
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mediaType := streams.NewActivityStreamsMediaTypeProperty()
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mediaType.Set(header.File.ContentType)
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headerImage.SetActivityStreamsMediaType(mediaType)
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headerURLProperty := streams.NewActivityStreamsUrlProperty()
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headerURL, err := url.Parse(header.URL)
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if err != nil {
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return nil, err
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}
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headerURLProperty.AppendIRI(headerURL)
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headerImage.SetActivityStreamsUrl(headerURLProperty)
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headerProperty.AppendActivityStreamsImage(headerImage)
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}
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return person, nil
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}
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func (c *converter) StatusToAS(s *gtsmodel.Status) (vocab.ActivityStreamsNote, error) {
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return nil, nil
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}
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