GoToSocial/internal/typeutils/internaltoas.go

1168 lines
37 KiB
Go

/*
GoToSocial
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 typeutils
import (
"context"
"crypto/x509"
"encoding/pem"
"fmt"
"net/url"
"github.com/superseriousbusiness/activity/pub"
"github.com/superseriousbusiness/activity/streams"
"github.com/superseriousbusiness/activity/streams/vocab"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
)
// const (
// // highestID is the highest possible ULID
// highestID = "ZZZZZZZZZZZZZZZZZZZZZZZZZZ"
// // lowestID is the lowest possible ULID
// lowestID = "00000000000000000000000000"
// )
// Converts a gts model account into an Activity Streams person type.
func (c *converter) AccountToAS(ctx context.Context, a *gtsmodel.Account) (vocab.ActivityStreamsPerson, error) {
person := streams.NewActivityStreamsPerson()
// id should be the activitypub URI of this user
// something like https://example.org/users/example_user
profileIDURI, err := url.Parse(a.URI)
if err != nil {
return nil, err
}
idProp := streams.NewJSONLDIdProperty()
idProp.SetIRI(profileIDURI)
person.SetJSONLDId(idProp)
// following
// The URI for retrieving a list of accounts this user is following
followingURI, err := url.Parse(a.FollowingURI)
if err != nil {
return nil, err
}
followingProp := streams.NewActivityStreamsFollowingProperty()
followingProp.SetIRI(followingURI)
person.SetActivityStreamsFollowing(followingProp)
// followers
// The URI for retrieving a list of this user's followers
followersURI, err := url.Parse(a.FollowersURI)
if err != nil {
return nil, err
}
followersProp := streams.NewActivityStreamsFollowersProperty()
followersProp.SetIRI(followersURI)
person.SetActivityStreamsFollowers(followersProp)
// inbox
// the activitypub inbox of this user for accepting messages
inboxURI, err := url.Parse(a.InboxURI)
if err != nil {
return nil, err
}
inboxProp := streams.NewActivityStreamsInboxProperty()
inboxProp.SetIRI(inboxURI)
person.SetActivityStreamsInbox(inboxProp)
// outbox
// the activitypub outbox of this user for serving messages
outboxURI, err := url.Parse(a.OutboxURI)
if err != nil {
return nil, err
}
outboxProp := streams.NewActivityStreamsOutboxProperty()
outboxProp.SetIRI(outboxURI)
person.SetActivityStreamsOutbox(outboxProp)
// featured posts
// Pinned posts.
featuredURI, err := url.Parse(a.FeaturedCollectionURI)
if err != nil {
return nil, err
}
featuredProp := streams.NewTootFeaturedProperty()
featuredProp.SetIRI(featuredURI)
person.SetTootFeatured(featuredProp)
// featuredTags
// NOT IMPLEMENTED
// preferredUsername
// Used for Webfinger lookup. Must be unique on the domain, and must correspond to a Webfinger acct: URI.
preferredUsernameProp := streams.NewActivityStreamsPreferredUsernameProperty()
preferredUsernameProp.SetXMLSchemaString(a.Username)
person.SetActivityStreamsPreferredUsername(preferredUsernameProp)
// name
// Used as profile display name.
nameProp := streams.NewActivityStreamsNameProperty()
if a.Username != "" {
nameProp.AppendXMLSchemaString(a.DisplayName)
} else {
nameProp.AppendXMLSchemaString(a.Username)
}
person.SetActivityStreamsName(nameProp)
// summary
// Used as profile bio.
if a.Note != "" {
summaryProp := streams.NewActivityStreamsSummaryProperty()
summaryProp.AppendXMLSchemaString(a.Note)
person.SetActivityStreamsSummary(summaryProp)
}
// url
// Used as profile link.
profileURL, err := url.Parse(a.URL)
if err != nil {
return nil, err
}
urlProp := streams.NewActivityStreamsUrlProperty()
urlProp.AppendIRI(profileURL)
person.SetActivityStreamsUrl(urlProp)
// manuallyApprovesFollowers
// Will be shown as a locked account.
manuallyApprovesFollowersProp := streams.NewActivityStreamsManuallyApprovesFollowersProperty()
manuallyApprovesFollowersProp.Set(*a.Locked)
person.SetActivityStreamsManuallyApprovesFollowers(manuallyApprovesFollowersProp)
// discoverable
// Will be shown in the profile directory.
discoverableProp := streams.NewTootDiscoverableProperty()
discoverableProp.Set(*a.Discoverable)
person.SetTootDiscoverable(discoverableProp)
// devices
// NOT IMPLEMENTED, probably won't implement
// alsoKnownAs
// Required for Move activity.
// 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
// publicKey
// Required for signatures.
publicKeyProp := streams.NewW3IDSecurityV1PublicKeyProperty()
// create the public key
publicKey := streams.NewW3IDSecurityV1PublicKey()
// set ID for the public key
publicKeyIDProp := streams.NewJSONLDIdProperty()
publicKeyURI, err := url.Parse(a.PublicKeyURI)
if err != nil {
return nil, err
}
publicKeyIDProp.SetIRI(publicKeyURI)
publicKey.SetJSONLDId(publicKeyIDProp)
// set owner for the public key
publicKeyOwnerProp := streams.NewW3IDSecurityV1OwnerProperty()
publicKeyOwnerProp.SetIRI(profileIDURI)
publicKey.SetW3IDSecurityV1Owner(publicKeyOwnerProp)
// set the pem key itself
encodedPublicKey, err := x509.MarshalPKIXPublicKey(a.PublicKey)
if err != nil {
return nil, err
}
publicKeyBytes := pem.EncodeToMemory(&pem.Block{
Type: "PUBLIC KEY",
Bytes: encodedPublicKey,
})
publicKeyPEMProp := streams.NewW3IDSecurityV1PublicKeyPemProperty()
publicKeyPEMProp.Set(string(publicKeyBytes))
publicKey.SetW3IDSecurityV1PublicKeyPem(publicKeyPEMProp)
// append the public key to the public key property
publicKeyProp.AppendW3IDSecurityV1PublicKey(publicKey)
// set the public key property on the Person
person.SetW3IDSecurityV1PublicKey(publicKeyProp)
// tag
// TODO: Any tags used in the summary of this profile
// attachment
// Used for profile fields.
// TODO: The PropertyValue type has to be added: https://schema.org/PropertyValue
// endpoints
// NOT IMPLEMENTED -- this is for shared inbox which we don't use
// icon
// Used as profile avatar.
if a.AvatarMediaAttachmentID != "" {
if a.AvatarMediaAttachment == nil {
avatar, err := c.db.GetAttachmentByID(ctx, a.AvatarMediaAttachmentID)
if err == nil {
a.AvatarMediaAttachment = avatar
} else {
log.Errorf("AccountToAS: error getting Avatar with id %s: %s", a.AvatarMediaAttachmentID, err)
}
}
if a.AvatarMediaAttachment != nil {
iconProperty := streams.NewActivityStreamsIconProperty()
iconImage := streams.NewActivityStreamsImage()
mediaType := streams.NewActivityStreamsMediaTypeProperty()
mediaType.Set(a.AvatarMediaAttachment.File.ContentType)
iconImage.SetActivityStreamsMediaType(mediaType)
avatarURLProperty := streams.NewActivityStreamsUrlProperty()
avatarURL, err := url.Parse(a.AvatarMediaAttachment.URL)
if err != nil {
return nil, err
}
avatarURLProperty.AppendIRI(avatarURL)
iconImage.SetActivityStreamsUrl(avatarURLProperty)
iconProperty.AppendActivityStreamsImage(iconImage)
person.SetActivityStreamsIcon(iconProperty)
}
}
// image
// Used as profile header.
if a.HeaderMediaAttachmentID != "" {
if a.HeaderMediaAttachment == nil {
header, err := c.db.GetAttachmentByID(ctx, a.HeaderMediaAttachmentID)
if err == nil {
a.HeaderMediaAttachment = header
} else {
log.Errorf("AccountToAS: error getting Header with id %s: %s", a.HeaderMediaAttachmentID, err)
}
}
if a.HeaderMediaAttachment != nil {
headerProperty := streams.NewActivityStreamsImageProperty()
headerImage := streams.NewActivityStreamsImage()
mediaType := streams.NewActivityStreamsMediaTypeProperty()
mediaType.Set(a.HeaderMediaAttachment.File.ContentType)
headerImage.SetActivityStreamsMediaType(mediaType)
headerURLProperty := streams.NewActivityStreamsUrlProperty()
headerURL, err := url.Parse(a.HeaderMediaAttachment.URL)
if err != nil {
return nil, err
}
headerURLProperty.AppendIRI(headerURL)
headerImage.SetActivityStreamsUrl(headerURLProperty)
headerProperty.AppendActivityStreamsImage(headerImage)
person.SetActivityStreamsImage(headerProperty)
}
}
return person, nil
}
// Converts a gts model account into a VERY MINIMAL Activity Streams person type.
//
// The returned account will just have the Type, Username, PublicKey, and ID properties set.
func (c *converter) AccountToASMinimal(ctx context.Context, a *gtsmodel.Account) (vocab.ActivityStreamsPerson, error) {
person := streams.NewActivityStreamsPerson()
// id should be the activitypub URI of this user
// something like https://example.org/users/example_user
profileIDURI, err := url.Parse(a.URI)
if err != nil {
return nil, err
}
idProp := streams.NewJSONLDIdProperty()
idProp.SetIRI(profileIDURI)
person.SetJSONLDId(idProp)
// preferredUsername
// Used for Webfinger lookup. Must be unique on the domain, and must correspond to a Webfinger acct: URI.
preferredUsernameProp := streams.NewActivityStreamsPreferredUsernameProperty()
preferredUsernameProp.SetXMLSchemaString(a.Username)
person.SetActivityStreamsPreferredUsername(preferredUsernameProp)
// publicKey
// Required for signatures.
publicKeyProp := streams.NewW3IDSecurityV1PublicKeyProperty()
// create the public key
publicKey := streams.NewW3IDSecurityV1PublicKey()
// set ID for the public key
publicKeyIDProp := streams.NewJSONLDIdProperty()
publicKeyURI, err := url.Parse(a.PublicKeyURI)
if err != nil {
return nil, err
}
publicKeyIDProp.SetIRI(publicKeyURI)
publicKey.SetJSONLDId(publicKeyIDProp)
// set owner for the public key
publicKeyOwnerProp := streams.NewW3IDSecurityV1OwnerProperty()
publicKeyOwnerProp.SetIRI(profileIDURI)
publicKey.SetW3IDSecurityV1Owner(publicKeyOwnerProp)
// set the pem key itself
encodedPublicKey, err := x509.MarshalPKIXPublicKey(a.PublicKey)
if err != nil {
return nil, err
}
publicKeyBytes := pem.EncodeToMemory(&pem.Block{
Type: "PUBLIC KEY",
Bytes: encodedPublicKey,
})
publicKeyPEMProp := streams.NewW3IDSecurityV1PublicKeyPemProperty()
publicKeyPEMProp.Set(string(publicKeyBytes))
publicKey.SetW3IDSecurityV1PublicKeyPem(publicKeyPEMProp)
// append the public key to the public key property
publicKeyProp.AppendW3IDSecurityV1PublicKey(publicKey)
// set the public key property on the Person
person.SetW3IDSecurityV1PublicKey(publicKeyProp)
return person, nil
}
func (c *converter) StatusToAS(ctx context.Context, s *gtsmodel.Status) (vocab.ActivityStreamsNote, error) {
// ensure prerequisites here before we get stuck in
// check if author account is already attached to status and attach it if not
// if we can't retrieve this, bail here already because we can't attribute the status to anyone
if s.Account == nil {
a, err := c.db.GetAccountByID(ctx, s.AccountID)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error retrieving author account from db: %s", err)
}
s.Account = a
}
// create the Note!
status := streams.NewActivityStreamsNote()
// id
statusURI, err := url.Parse(s.URI)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error parsing url %s: %s", s.URI, err)
}
statusIDProp := streams.NewJSONLDIdProperty()
statusIDProp.SetIRI(statusURI)
status.SetJSONLDId(statusIDProp)
// type
// will be set automatically by go-fed
// summary aka cw
statusSummaryProp := streams.NewActivityStreamsSummaryProperty()
statusSummaryProp.AppendXMLSchemaString(s.ContentWarning)
status.SetActivityStreamsSummary(statusSummaryProp)
// inReplyTo
if s.InReplyToID != "" {
// fetch the replied status if we don't have it on hand already
if s.InReplyTo == nil {
rs, err := c.db.GetStatusByID(ctx, s.InReplyToID)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error getting replied to status %s: %s", s.InReplyToID, err)
}
s.InReplyTo = rs
}
rURI, err := url.Parse(s.InReplyTo.URI)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error parsing url %s: %s", s.InReplyTo.URI, err)
}
inReplyToProp := streams.NewActivityStreamsInReplyToProperty()
inReplyToProp.AppendIRI(rURI)
status.SetActivityStreamsInReplyTo(inReplyToProp)
}
// published
publishedProp := streams.NewActivityStreamsPublishedProperty()
publishedProp.Set(s.CreatedAt)
status.SetActivityStreamsPublished(publishedProp)
// url
if s.URL != "" {
sURL, err := url.Parse(s.URL)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error parsing url %s: %s", s.URL, err)
}
urlProp := streams.NewActivityStreamsUrlProperty()
urlProp.AppendIRI(sURL)
status.SetActivityStreamsUrl(urlProp)
}
// attributedTo
authorAccountURI, err := url.Parse(s.Account.URI)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error parsing url %s: %s", s.Account.URI, err)
}
attributedToProp := streams.NewActivityStreamsAttributedToProperty()
attributedToProp.AppendIRI(authorAccountURI)
status.SetActivityStreamsAttributedTo(attributedToProp)
// tags
tagProp := streams.NewActivityStreamsTagProperty()
// tag -- mentions
for _, m := range s.Mentions {
asMention, err := c.MentionToAS(ctx, m)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error converting mention to AS mention: %s", err)
}
tagProp.AppendActivityStreamsMention(asMention)
}
// tag -- emojis
// TODO
// tag -- hashtags
// TODO
status.SetActivityStreamsTag(tagProp)
// parse out some URIs we need here
authorFollowersURI, err := url.Parse(s.Account.FollowersURI)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error parsing url %s: %s", s.Account.FollowersURI, err)
}
publicURI, err := url.Parse(pub.PublicActivityPubIRI)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error parsing url %s: %s", pub.PublicActivityPubIRI, err)
}
// to and cc
toProp := streams.NewActivityStreamsToProperty()
ccProp := streams.NewActivityStreamsCcProperty()
switch s.Visibility {
case gtsmodel.VisibilityDirect:
// if DIRECT, then only mentioned users should be added to TO, and nothing to CC
for _, m := range s.Mentions {
iri, err := url.Parse(m.TargetAccount.URI)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error parsing uri %s: %s", m.TargetAccount.URI, err)
}
toProp.AppendIRI(iri)
}
case gtsmodel.VisibilityMutualsOnly:
// TODO
case gtsmodel.VisibilityFollowersOnly:
// if FOLLOWERS ONLY then we want to add followers to TO, and mentions to CC
toProp.AppendIRI(authorFollowersURI)
for _, m := range s.Mentions {
iri, err := url.Parse(m.TargetAccount.URI)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error parsing uri %s: %s", m.TargetAccount.URI, err)
}
ccProp.AppendIRI(iri)
}
case gtsmodel.VisibilityUnlocked:
// if UNLOCKED, we want to add followers to TO, and public and mentions to CC
toProp.AppendIRI(authorFollowersURI)
ccProp.AppendIRI(publicURI)
for _, m := range s.Mentions {
iri, err := url.Parse(m.TargetAccount.URI)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error parsing uri %s: %s", m.TargetAccount.URI, err)
}
ccProp.AppendIRI(iri)
}
case gtsmodel.VisibilityPublic:
// if PUBLIC, we want to add public to TO, and followers and mentions to CC
toProp.AppendIRI(publicURI)
ccProp.AppendIRI(authorFollowersURI)
for _, m := range s.Mentions {
iri, err := url.Parse(m.TargetAccount.URI)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error parsing uri %s: %s", m.TargetAccount.URI, err)
}
ccProp.AppendIRI(iri)
}
}
status.SetActivityStreamsTo(toProp)
status.SetActivityStreamsCc(ccProp)
// conversation
// TODO
// content -- the actual post itself
contentProp := streams.NewActivityStreamsContentProperty()
contentProp.AppendXMLSchemaString(s.Content)
status.SetActivityStreamsContent(contentProp)
// attachment
attachmentProp := streams.NewActivityStreamsAttachmentProperty()
for _, a := range s.Attachments {
doc, err := c.AttachmentToAS(ctx, a)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error converting attachment: %s", err)
}
attachmentProp.AppendActivityStreamsDocument(doc)
}
status.SetActivityStreamsAttachment(attachmentProp)
// replies
repliesCollection, err := c.StatusToASRepliesCollection(ctx, s, false)
if err != nil {
return nil, fmt.Errorf("error creating repliesCollection: %s", err)
}
repliesProp := streams.NewActivityStreamsRepliesProperty()
repliesProp.SetActivityStreamsCollection(repliesCollection)
status.SetActivityStreamsReplies(repliesProp)
// sensitive
sensitiveProp := streams.NewActivityStreamsSensitiveProperty()
sensitiveProp.AppendXMLSchemaBoolean(*s.Sensitive)
status.SetActivityStreamsSensitive(sensitiveProp)
return status, nil
}
func (c *converter) FollowToAS(ctx context.Context, f *gtsmodel.Follow, originAccount *gtsmodel.Account, targetAccount *gtsmodel.Account) (vocab.ActivityStreamsFollow, error) {
// parse out the various URIs we need for this
// origin account (who's doing the follow)
originAccountURI, err := url.Parse(originAccount.URI)
if err != nil {
return nil, fmt.Errorf("followtoasfollow: error parsing origin account uri: %s", err)
}
originActor := streams.NewActivityStreamsActorProperty()
originActor.AppendIRI(originAccountURI)
// target account (who's being followed)
targetAccountURI, err := url.Parse(targetAccount.URI)
if err != nil {
return nil, fmt.Errorf("followtoasfollow: error parsing target account uri: %s", err)
}
// uri of the follow activity itself
followURI, err := url.Parse(f.URI)
if err != nil {
return nil, fmt.Errorf("followtoasfollow: error parsing follow uri: %s", err)
}
// start preparing the follow activity
follow := streams.NewActivityStreamsFollow()
// set the actor
follow.SetActivityStreamsActor(originActor)
// set the id
followIDProp := streams.NewJSONLDIdProperty()
followIDProp.SetIRI(followURI)
follow.SetJSONLDId(followIDProp)
// set the object
followObjectProp := streams.NewActivityStreamsObjectProperty()
followObjectProp.AppendIRI(targetAccountURI)
follow.SetActivityStreamsObject(followObjectProp)
// set the To property
followToProp := streams.NewActivityStreamsToProperty()
followToProp.AppendIRI(targetAccountURI)
follow.SetActivityStreamsTo(followToProp)
return follow, nil
}
func (c *converter) MentionToAS(ctx context.Context, m *gtsmodel.Mention) (vocab.ActivityStreamsMention, error) {
if m.TargetAccount == nil {
a, err := c.db.GetAccountByID(ctx, m.TargetAccountID)
if err != nil {
return nil, fmt.Errorf("MentionToAS: error getting target account from db: %s", err)
}
m.TargetAccount = a
}
// create the mention
mention := streams.NewActivityStreamsMention()
// href -- this should be the URI of the mentioned user
hrefProp := streams.NewActivityStreamsHrefProperty()
hrefURI, err := url.Parse(m.TargetAccount.URI)
if err != nil {
return nil, fmt.Errorf("MentionToAS: error parsing uri %s: %s", m.TargetAccount.URI, err)
}
hrefProp.SetIRI(hrefURI)
mention.SetActivityStreamsHref(hrefProp)
// name -- this should be the namestring of the mentioned user, something like @whatever@example.org
var domain string
if m.TargetAccount.Domain == "" {
accountDomain := config.GetAccountDomain()
if accountDomain == "" {
accountDomain = config.GetHost()
}
domain = accountDomain
} else {
domain = m.TargetAccount.Domain
}
username := m.TargetAccount.Username
nameString := fmt.Sprintf("@%s@%s", username, domain)
nameProp := streams.NewActivityStreamsNameProperty()
nameProp.AppendXMLSchemaString(nameString)
mention.SetActivityStreamsName(nameProp)
return mention, nil
}
func (c *converter) AttachmentToAS(ctx context.Context, a *gtsmodel.MediaAttachment) (vocab.ActivityStreamsDocument, error) {
// type -- Document
doc := streams.NewActivityStreamsDocument()
// mediaType aka mime content type
mediaTypeProp := streams.NewActivityStreamsMediaTypeProperty()
mediaTypeProp.Set(a.File.ContentType)
doc.SetActivityStreamsMediaType(mediaTypeProp)
// url -- for the original image not the thumbnail
urlProp := streams.NewActivityStreamsUrlProperty()
imageURL, err := url.Parse(a.URL)
if err != nil {
return nil, fmt.Errorf("AttachmentToAS: error parsing uri %s: %s", a.URL, err)
}
urlProp.AppendIRI(imageURL)
doc.SetActivityStreamsUrl(urlProp)
// name -- aka image description
nameProp := streams.NewActivityStreamsNameProperty()
nameProp.AppendXMLSchemaString(a.Description)
doc.SetActivityStreamsName(nameProp)
// blurhash
blurProp := streams.NewTootBlurhashProperty()
blurProp.Set(a.Blurhash)
doc.SetTootBlurhash(blurProp)
// focalpoint
// TODO
return doc, nil
}
/*
We want to end up with something like this:
{
"@context": "https://www.w3.org/ns/activitystreams",
"actor": "https://ondergrond.org/users/dumpsterqueer",
"id": "https://ondergrond.org/users/dumpsterqueer#likes/44584",
"object": "https://testingtesting123.xyz/users/gotosocial_test_account/statuses/771aea80-a33d-4d6d-8dfd-57d4d2bfcbd4",
"type": "Like"
}
*/
func (c *converter) FaveToAS(ctx context.Context, f *gtsmodel.StatusFave) (vocab.ActivityStreamsLike, error) {
// check if targetStatus is already pinned to this fave, and fetch it if not
if f.Status == nil {
s, err := c.db.GetStatusByID(ctx, f.StatusID)
if err != nil {
return nil, fmt.Errorf("FaveToAS: error fetching target status from database: %s", err)
}
f.Status = s
}
// check if the targetAccount is already pinned to this fave, and fetch it if not
if f.TargetAccount == nil {
a, err := c.db.GetAccountByID(ctx, f.TargetAccountID)
if err != nil {
return nil, fmt.Errorf("FaveToAS: error fetching target account from database: %s", err)
}
f.TargetAccount = a
}
// check if the faving account is already pinned to this fave, and fetch it if not
if f.Account == nil {
a, err := c.db.GetAccountByID(ctx, f.AccountID)
if err != nil {
return nil, fmt.Errorf("FaveToAS: error fetching faving account from database: %s", err)
}
f.Account = a
}
// create the like
like := streams.NewActivityStreamsLike()
// set the actor property to the fave-ing account's URI
actorProp := streams.NewActivityStreamsActorProperty()
actorIRI, err := url.Parse(f.Account.URI)
if err != nil {
return nil, fmt.Errorf("FaveToAS: error parsing uri %s: %s", f.Account.URI, err)
}
actorProp.AppendIRI(actorIRI)
like.SetActivityStreamsActor(actorProp)
// set the ID property to the fave's URI
idProp := streams.NewJSONLDIdProperty()
idIRI, err := url.Parse(f.URI)
if err != nil {
return nil, fmt.Errorf("FaveToAS: error parsing uri %s: %s", f.URI, err)
}
idProp.Set(idIRI)
like.SetJSONLDId(idProp)
// set the object property to the target status's URI
objectProp := streams.NewActivityStreamsObjectProperty()
statusIRI, err := url.Parse(f.Status.URI)
if err != nil {
return nil, fmt.Errorf("FaveToAS: error parsing uri %s: %s", f.Status.URI, err)
}
objectProp.AppendIRI(statusIRI)
like.SetActivityStreamsObject(objectProp)
// set the TO property to the target account's IRI
toProp := streams.NewActivityStreamsToProperty()
toIRI, err := url.Parse(f.TargetAccount.URI)
if err != nil {
return nil, fmt.Errorf("FaveToAS: error parsing uri %s: %s", f.TargetAccount.URI, err)
}
toProp.AppendIRI(toIRI)
like.SetActivityStreamsTo(toProp)
return like, nil
}
func (c *converter) BoostToAS(ctx context.Context, boostWrapperStatus *gtsmodel.Status, boostingAccount *gtsmodel.Account, boostedAccount *gtsmodel.Account) (vocab.ActivityStreamsAnnounce, error) {
// the boosted status is probably pinned to the boostWrapperStatus but double check to make sure
if boostWrapperStatus.BoostOf == nil {
b, err := c.db.GetStatusByID(ctx, boostWrapperStatus.BoostOfID)
if err != nil {
return nil, fmt.Errorf("BoostToAS: error getting status with ID %s from the db: %s", boostWrapperStatus.BoostOfID, err)
}
boostWrapperStatus.BoostOf = b
}
// create the announce
announce := streams.NewActivityStreamsAnnounce()
// set the actor
boosterURI, err := url.Parse(boostingAccount.URI)
if err != nil {
return nil, fmt.Errorf("BoostToAS: error parsing uri %s: %s", boostingAccount.URI, err)
}
actorProp := streams.NewActivityStreamsActorProperty()
actorProp.AppendIRI(boosterURI)
announce.SetActivityStreamsActor(actorProp)
// set the ID
boostIDURI, err := url.Parse(boostWrapperStatus.URI)
if err != nil {
return nil, fmt.Errorf("BoostToAS: error parsing uri %s: %s", boostWrapperStatus.URI, err)
}
idProp := streams.NewJSONLDIdProperty()
idProp.SetIRI(boostIDURI)
announce.SetJSONLDId(idProp)
// set the object
boostedStatusURI, err := url.Parse(boostWrapperStatus.BoostOf.URI)
if err != nil {
return nil, fmt.Errorf("BoostToAS: error parsing uri %s: %s", boostWrapperStatus.BoostOf.URI, err)
}
objectProp := streams.NewActivityStreamsObjectProperty()
objectProp.AppendIRI(boostedStatusURI)
announce.SetActivityStreamsObject(objectProp)
// set the published time
publishedProp := streams.NewActivityStreamsPublishedProperty()
publishedProp.Set(boostWrapperStatus.CreatedAt)
announce.SetActivityStreamsPublished(publishedProp)
// set the to
followersURI, err := url.Parse(boostingAccount.FollowersURI)
if err != nil {
return nil, fmt.Errorf("BoostToAS: error parsing uri %s: %s", boostingAccount.FollowersURI, err)
}
toProp := streams.NewActivityStreamsToProperty()
toProp.AppendIRI(followersURI)
announce.SetActivityStreamsTo(toProp)
// set the cc
ccProp := streams.NewActivityStreamsCcProperty()
boostedAccountURI, err := url.Parse(boostedAccount.URI)
if err != nil {
return nil, fmt.Errorf("BoostToAS: error parsing uri %s: %s", boostedAccount.URI, err)
}
ccProp.AppendIRI(boostedAccountURI)
// maybe CC it to public depending on the boosted status visibility
switch boostWrapperStatus.BoostOf.Visibility {
case gtsmodel.VisibilityPublic, gtsmodel.VisibilityUnlocked:
publicURI, err := url.Parse(pub.PublicActivityPubIRI)
if err != nil {
return nil, fmt.Errorf("BoostToAS: error parsing uri %s: %s", pub.PublicActivityPubIRI, err)
}
ccProp.AppendIRI(publicURI)
}
announce.SetActivityStreamsCc(ccProp)
return announce, nil
}
/*
we want to end up with something like this:
{
"@context": "https://www.w3.org/ns/activitystreams",
"actor": "https://example.org/users/some_user",
"id":"https://example.org/users/some_user/blocks/SOME_ULID_OF_A_BLOCK",
"object":"https://some_other.instance/users/some_other_user",
"type":"Block"
}
*/
func (c *converter) BlockToAS(ctx context.Context, b *gtsmodel.Block) (vocab.ActivityStreamsBlock, error) {
if b.Account == nil {
a, err := c.db.GetAccountByID(ctx, b.AccountID)
if err != nil {
return nil, fmt.Errorf("BlockToAS: error getting block owner account from database: %s", err)
}
b.Account = a
}
if b.TargetAccount == nil {
a, err := c.db.GetAccountByID(ctx, b.TargetAccountID)
if err != nil {
return nil, fmt.Errorf("BlockToAS: error getting block target account from database: %s", err)
}
b.TargetAccount = a
}
// create the block
block := streams.NewActivityStreamsBlock()
// set the actor property to the block-ing account's URI
actorProp := streams.NewActivityStreamsActorProperty()
actorIRI, err := url.Parse(b.Account.URI)
if err != nil {
return nil, fmt.Errorf("BlockToAS: error parsing uri %s: %s", b.Account.URI, err)
}
actorProp.AppendIRI(actorIRI)
block.SetActivityStreamsActor(actorProp)
// set the ID property to the blocks's URI
idProp := streams.NewJSONLDIdProperty()
idIRI, err := url.Parse(b.URI)
if err != nil {
return nil, fmt.Errorf("BlockToAS: error parsing uri %s: %s", b.URI, err)
}
idProp.Set(idIRI)
block.SetJSONLDId(idProp)
// set the object property to the target account's URI
objectProp := streams.NewActivityStreamsObjectProperty()
targetIRI, err := url.Parse(b.TargetAccount.URI)
if err != nil {
return nil, fmt.Errorf("BlockToAS: error parsing uri %s: %s", b.TargetAccount.URI, err)
}
objectProp.AppendIRI(targetIRI)
block.SetActivityStreamsObject(objectProp)
// set the TO property to the target account's IRI
toProp := streams.NewActivityStreamsToProperty()
toIRI, err := url.Parse(b.TargetAccount.URI)
if err != nil {
return nil, fmt.Errorf("BlockToAS: error parsing uri %s: %s", b.TargetAccount.URI, err)
}
toProp.AppendIRI(toIRI)
block.SetActivityStreamsTo(toProp)
return block, nil
}
/*
the goal is to end up with something like this:
{
"@context": "https://www.w3.org/ns/activitystreams",
"id": "https://example.org/users/whatever/statuses/01FCNEXAGAKPEX1J7VJRPJP490/replies",
"type": "Collection",
"first": {
"id": "https://example.org/users/whatever/statuses/01FCNEXAGAKPEX1J7VJRPJP490/replies?page=true",
"type": "CollectionPage",
"next": "https://example.org/users/whatever/statuses/01FCNEXAGAKPEX1J7VJRPJP490/replies?only_other_accounts=true&page=true",
"partOf": "https://example.org/users/whatever/statuses/01FCNEXAGAKPEX1J7VJRPJP490/replies",
"items": []
}
}
*/
func (c *converter) StatusToASRepliesCollection(ctx context.Context, status *gtsmodel.Status, onlyOtherAccounts bool) (vocab.ActivityStreamsCollection, error) {
collectionID := fmt.Sprintf("%s/replies", status.URI)
collectionIDURI, err := url.Parse(collectionID)
if err != nil {
return nil, err
}
collection := streams.NewActivityStreamsCollection()
// collection.id
collectionIDProp := streams.NewJSONLDIdProperty()
collectionIDProp.SetIRI(collectionIDURI)
collection.SetJSONLDId(collectionIDProp)
// first
first := streams.NewActivityStreamsFirstProperty()
firstPage := streams.NewActivityStreamsCollectionPage()
// first.id
firstPageIDProp := streams.NewJSONLDIdProperty()
firstPageID, err := url.Parse(fmt.Sprintf("%s?page=true", collectionID))
if err != nil {
return nil, gtserror.NewErrorInternalError(err)
}
firstPageIDProp.SetIRI(firstPageID)
firstPage.SetJSONLDId(firstPageIDProp)
// first.next
nextProp := streams.NewActivityStreamsNextProperty()
nextPropID, err := url.Parse(fmt.Sprintf("%s?only_other_accounts=%t&page=true", collectionID, onlyOtherAccounts))
if err != nil {
return nil, gtserror.NewErrorInternalError(err)
}
nextProp.SetIRI(nextPropID)
firstPage.SetActivityStreamsNext(nextProp)
// first.partOf
partOfProp := streams.NewActivityStreamsPartOfProperty()
partOfProp.SetIRI(collectionIDURI)
firstPage.SetActivityStreamsPartOf(partOfProp)
first.SetActivityStreamsCollectionPage(firstPage)
// collection.first
collection.SetActivityStreamsFirst(first)
return collection, nil
}
/*
the goal is to end up with something like this:
{
"@context": "https://www.w3.org/ns/activitystreams",
"id": "https://example.org/users/whatever/statuses/01FCNEXAGAKPEX1J7VJRPJP490/replies?only_other_accounts=true&page=true",
"type": "CollectionPage",
"next": "https://example.org/users/whatever/statuses/01FCNEXAGAKPEX1J7VJRPJP490/replies?min_id=106720870266901180&only_other_accounts=true&page=true",
"partOf": "https://example.org/users/whatever/statuses/01FCNEXAGAKPEX1J7VJRPJP490/replies",
"items": [
"https://example.com/users/someone/statuses/106720752853216226",
"https://somewhere.online/users/eeeeeeeeeep/statuses/106720870163727231"
]
}
*/
func (c *converter) StatusURIsToASRepliesPage(ctx context.Context, status *gtsmodel.Status, onlyOtherAccounts bool, minID string, replies map[string]*url.URL) (vocab.ActivityStreamsCollectionPage, error) {
collectionID := fmt.Sprintf("%s/replies", status.URI)
page := streams.NewActivityStreamsCollectionPage()
// .id
pageIDProp := streams.NewJSONLDIdProperty()
pageIDString := fmt.Sprintf("%s?page=true&only_other_accounts=%t", collectionID, onlyOtherAccounts)
if minID != "" {
pageIDString = fmt.Sprintf("%s&min_id=%s", pageIDString, minID)
}
pageID, err := url.Parse(pageIDString)
if err != nil {
return nil, gtserror.NewErrorInternalError(err)
}
pageIDProp.SetIRI(pageID)
page.SetJSONLDId(pageIDProp)
// .partOf
collectionIDURI, err := url.Parse(collectionID)
if err != nil {
return nil, err
}
partOfProp := streams.NewActivityStreamsPartOfProperty()
partOfProp.SetIRI(collectionIDURI)
page.SetActivityStreamsPartOf(partOfProp)
// .items
items := streams.NewActivityStreamsItemsProperty()
var highestID string
for k, v := range replies {
items.AppendIRI(v)
if k > highestID {
highestID = k
}
}
page.SetActivityStreamsItems(items)
// .next
nextProp := streams.NewActivityStreamsNextProperty()
nextPropIDString := fmt.Sprintf("%s?only_other_accounts=%t&page=true", collectionID, onlyOtherAccounts)
if highestID != "" {
nextPropIDString = fmt.Sprintf("%s&min_id=%s", nextPropIDString, highestID)
}
nextPropID, err := url.Parse(nextPropIDString)
if err != nil {
return nil, gtserror.NewErrorInternalError(err)
}
nextProp.SetIRI(nextPropID)
page.SetActivityStreamsNext(nextProp)
return page, nil
}
/*
the goal is to end up with something like this:
{
"id": "https://example.org/users/whatever/outbox?page=true",
"type": "OrderedCollectionPage",
"next": "https://example.org/users/whatever/outbox?max_id=01FJC1Q0E3SSQR59TD2M1KP4V8&page=true",
"prev": "https://example.org/users/whatever/outbox?min_id=01FJC1Q0E3SSQR59TD2M1KP4V8&page=true",
"partOf": "https://example.org/users/whatever/outbox",
"orderedItems": [
"id": "https://example.org/users/whatever/statuses/01FJC1MKPVX2VMWP2ST93Q90K7/activity",
"type": "Create",
"actor": "https://example.org/users/whatever",
"published": "2021-10-18T20:06:18Z",
"to": [
"https://www.w3.org/ns/activitystreams#Public"
],
"cc": [
"https://example.org/users/whatever/followers"
],
"object": "https://example.org/users/whatever/statuses/01FJC1MKPVX2VMWP2ST93Q90K7"
]
}
*/
func (c *converter) StatusesToASOutboxPage(ctx context.Context, outboxID string, maxID string, minID string, statuses []*gtsmodel.Status) (vocab.ActivityStreamsOrderedCollectionPage, error) {
page := streams.NewActivityStreamsOrderedCollectionPage()
// .id
pageIDProp := streams.NewJSONLDIdProperty()
pageID := fmt.Sprintf("%s?page=true", outboxID)
if minID != "" {
pageID = fmt.Sprintf("%s&minID=%s", pageID, minID)
}
if maxID != "" {
pageID = fmt.Sprintf("%s&maxID=%s", pageID, maxID)
}
pageIDURI, err := url.Parse(pageID)
if err != nil {
return nil, err
}
pageIDProp.SetIRI(pageIDURI)
page.SetJSONLDId(pageIDProp)
// .partOf
collectionIDURI, err := url.Parse(outboxID)
if err != nil {
return nil, err
}
partOfProp := streams.NewActivityStreamsPartOfProperty()
partOfProp.SetIRI(collectionIDURI)
page.SetActivityStreamsPartOf(partOfProp)
// .orderedItems
itemsProp := streams.NewActivityStreamsOrderedItemsProperty()
var highest string
var lowest string
for _, s := range statuses {
note, err := c.StatusToAS(ctx, s)
if err != nil {
return nil, err
}
create, err := c.WrapNoteInCreate(note, true)
if err != nil {
return nil, err
}
itemsProp.AppendActivityStreamsCreate(create)
if highest == "" || s.ID > highest {
highest = s.ID
}
if lowest == "" || s.ID < lowest {
lowest = s.ID
}
}
page.SetActivityStreamsOrderedItems(itemsProp)
// .next
if lowest != "" {
nextProp := streams.NewActivityStreamsNextProperty()
nextPropIDString := fmt.Sprintf("%s?page=true&max_id=%s", outboxID, lowest)
nextPropIDURI, err := url.Parse(nextPropIDString)
if err != nil {
return nil, err
}
nextProp.SetIRI(nextPropIDURI)
page.SetActivityStreamsNext(nextProp)
}
// .prev
if highest != "" {
prevProp := streams.NewActivityStreamsPrevProperty()
prevPropIDString := fmt.Sprintf("%s?page=true&min_id=%s", outboxID, highest)
prevPropIDURI, err := url.Parse(prevPropIDString)
if err != nil {
return nil, err
}
prevProp.SetIRI(prevPropIDURI)
page.SetActivityStreamsPrev(prevProp)
}
return page, nil
}
/*
we want something that looks like this:
{
"@context": "https://www.w3.org/ns/activitystreams",
"id": "https://example.org/users/whatever/outbox",
"type": "OrderedCollection",
"first": "https://example.org/users/whatever/outbox?page=true"
}
*/
func (c *converter) OutboxToASCollection(ctx context.Context, outboxID string) (vocab.ActivityStreamsOrderedCollection, error) {
collection := streams.NewActivityStreamsOrderedCollection()
collectionIDProp := streams.NewJSONLDIdProperty()
outboxIDURI, err := url.Parse(outboxID)
if err != nil {
return nil, fmt.Errorf("error parsing url %s", outboxID)
}
collectionIDProp.SetIRI(outboxIDURI)
collection.SetJSONLDId(collectionIDProp)
collectionFirstProp := streams.NewActivityStreamsFirstProperty()
collectionFirstPropID := fmt.Sprintf("%s?page=true", outboxID)
collectionFirstPropIDURI, err := url.Parse(collectionFirstPropID)
if err != nil {
return nil, fmt.Errorf("error parsing url %s", collectionFirstPropID)
}
collectionFirstProp.SetIRI(collectionFirstPropIDURI)
collection.SetActivityStreamsFirst(collectionFirstProp)
return collection, nil
}