gotosocial/internal/typeutils/internaltoas.go

1572 lines
52 KiB
Go

// GoToSocial
// Copyright (C) GoToSocial Authors admin@gotosocial.org
// SPDX-License-Identifier: AGPL-3.0-or-later
//
// 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"
"errors"
"fmt"
"net/url"
"strings"
"github.com/superseriousbusiness/activity/pub"
"github.com/superseriousbusiness/activity/streams"
"github.com/superseriousbusiness/activity/streams/vocab"
"github.com/superseriousbusiness/gotosocial/internal/ap"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/uris"
)
// AccountToAS converts a gts model account into an activity streams person, suitable for federation
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)
// shared inbox -- only add this if we know for sure it has one
if a.SharedInboxURI != nil && *a.SharedInboxURI != "" {
sharedInboxURI, err := url.Parse(*a.SharedInboxURI)
if err != nil {
return nil, err
}
endpointsProp := streams.NewActivityStreamsEndpointsProperty()
endpoints := streams.NewActivityStreamsEndpoints()
sharedInboxProp := streams.NewActivityStreamsSharedInboxProperty()
sharedInboxProp.SetIRI(sharedInboxURI)
endpoints.SetActivityStreamsSharedInbox(sharedInboxProp)
endpointsProp.AppendActivityStreamsEndpoints(endpoints)
person.SetActivityStreamsEndpoints(endpointsProp)
}
// 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)
// tags
tagProp := streams.NewActivityStreamsTagProperty()
// tag -- emojis
emojis := a.Emojis
if len(a.EmojiIDs) > len(emojis) {
emojis = []*gtsmodel.Emoji{}
for _, emojiID := range a.EmojiIDs {
emoji, err := c.state.DB.GetEmojiByID(ctx, emojiID)
if err != nil {
return nil, fmt.Errorf("AccountToAS: error getting emoji %s from database: %s", emojiID, err)
}
emojis = append(emojis, emoji)
}
}
for _, emoji := range emojis {
asEmoji, err := c.EmojiToAS(ctx, emoji)
if err != nil {
return nil, fmt.Errorf("AccountToAS: error converting emoji to AS emoji: %s", err)
}
tagProp.AppendTootEmoji(asEmoji)
}
// tag -- hashtags
// TODO
person.SetActivityStreamsTag(tagProp)
// attachment
// Used for profile fields.
if len(a.Fields) != 0 {
attachmentProp := streams.NewActivityStreamsAttachmentProperty()
for _, field := range a.Fields {
propertyValue := streams.NewSchemaPropertyValue()
nameProp := streams.NewActivityStreamsNameProperty()
nameProp.AppendXMLSchemaString(field.Name)
propertyValue.SetActivityStreamsName(nameProp)
valueProp := streams.NewSchemaValueProperty()
valueProp.Set(field.Value)
propertyValue.SetSchemaValue(valueProp)
attachmentProp.AppendSchemaPropertyValue(propertyValue)
}
person.SetActivityStreamsAttachment(attachmentProp)
}
// 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.state.DB.GetAttachmentByID(ctx, a.AvatarMediaAttachmentID)
if err == nil {
a.AvatarMediaAttachment = avatar
} else {
log.Errorf(ctx, "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.state.DB.GetAttachmentByID(ctx, a.HeaderMediaAttachmentID)
if err == nil {
a.HeaderMediaAttachment = header
} else {
log.Errorf(ctx, "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
}
// 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).
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
}
// StatusToAS converts a gts model status into an ActivityStreams Statusable implementation, suitable for federation
func (c *Converter) StatusToAS(ctx context.Context, s *gtsmodel.Status) (ap.Statusable, error) {
// Ensure the status model is fully populated.
// The status and poll models are REQUIRED so nothing to do if this fails.
if err := c.state.DB.PopulateStatus(ctx, s); err != nil {
return nil, gtserror.Newf("error populating status: %w", err)
}
// We convert it as an AS Note.
status := streams.NewActivityStreamsNote()
// id
statusURI, err := url.Parse(s.URI)
if err != nil {
return nil, gtserror.Newf("error parsing url %s: %w", 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.InReplyToURI != "" {
rURI, err := url.Parse(s.InReplyToURI)
if err != nil {
return nil, gtserror.Newf("error parsing url %s: %w", s.InReplyToURI, 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, gtserror.Newf("error parsing url %s: %w", 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, gtserror.Newf("error parsing url %s: %w", s.Account.URI, err)
}
attributedToProp := streams.NewActivityStreamsAttributedToProperty()
attributedToProp.AppendIRI(authorAccountURI)
status.SetActivityStreamsAttributedTo(attributedToProp)
// tags
tagProp := streams.NewActivityStreamsTagProperty()
// tag -- mentions
mentions := s.Mentions
if len(s.MentionIDs) > len(mentions) {
mentions, err = c.state.DB.GetMentions(ctx, s.MentionIDs)
if err != nil {
return nil, gtserror.Newf("error getting mentions: %w", err)
}
}
for _, m := range mentions {
asMention, err := c.MentionToAS(ctx, m)
if err != nil {
return nil, gtserror.Newf("error converting mention to AS mention: %w", err)
}
tagProp.AppendActivityStreamsMention(asMention)
}
// tag -- emojis
emojis := s.Emojis
if len(s.EmojiIDs) > len(emojis) {
emojis = []*gtsmodel.Emoji{}
for _, emojiID := range s.EmojiIDs {
emoji, err := c.state.DB.GetEmojiByID(ctx, emojiID)
if err != nil {
return nil, gtserror.Newf("error getting emoji %s from database: %w", emojiID, err)
}
emojis = append(emojis, emoji)
}
}
for _, emoji := range emojis {
asEmoji, err := c.EmojiToAS(ctx, emoji)
if err != nil {
return nil, gtserror.Newf("error converting emoji to AS emoji: %w", err)
}
tagProp.AppendTootEmoji(asEmoji)
}
// tag -- hashtags
hashtags := s.Tags
if len(s.TagIDs) > len(hashtags) {
hashtags, err = c.state.DB.GetTags(ctx, s.TagIDs)
if err != nil {
return nil, gtserror.Newf("error getting tags: %w", err)
}
}
for _, ht := range hashtags {
asHashtag, err := c.TagToAS(ctx, ht)
if err != nil {
return nil, gtserror.Newf("error converting tag to AS tag: %w", err)
}
tagProp.AppendTootHashtag(asHashtag)
}
status.SetActivityStreamsTag(tagProp)
// parse out some URIs we need here
authorFollowersURI, err := url.Parse(s.Account.FollowersURI)
if err != nil {
return nil, gtserror.Newf("error parsing url %s: %w", s.Account.FollowersURI, err)
}
publicURI, err := url.Parse(pub.PublicActivityPubIRI)
if err != nil {
return nil, gtserror.Newf("error parsing url %s: %w", 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 mentions {
iri, err := url.Parse(m.TargetAccount.URI)
if err != nil {
return nil, gtserror.Newf("error parsing uri %s: %w", 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 mentions {
iri, err := url.Parse(m.TargetAccount.URI)
if err != nil {
return nil, gtserror.Newf("error parsing uri %s: %w", 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 mentions {
iri, err := url.Parse(m.TargetAccount.URI)
if err != nil {
return nil, gtserror.Newf("error parsing uri %s: %w", 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 mentions {
iri, err := url.Parse(m.TargetAccount.URI)
if err != nil {
return nil, gtserror.Newf("error parsing uri %s: %w", 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)
// attachments
attachmentProp := streams.NewActivityStreamsAttachmentProperty()
attachments := s.Attachments
if len(s.AttachmentIDs) > len(attachments) {
attachments = []*gtsmodel.MediaAttachment{}
for _, attachmentID := range s.AttachmentIDs {
attachment, err := c.state.DB.GetAttachmentByID(ctx, attachmentID)
if err != nil {
return nil, gtserror.Newf("error getting attachment %s from database: %w", attachmentID, err)
}
attachments = append(attachments, attachment)
}
}
for _, a := range attachments {
doc, err := c.AttachmentToAS(ctx, a)
if err != nil {
return nil, gtserror.Newf("error converting attachment: %w", 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: %w", err)
}
repliesProp := streams.NewActivityStreamsRepliesProperty()
repliesProp.SetActivityStreamsCollection(repliesCollection)
status.SetActivityStreamsReplies(repliesProp)
// sensitive
sensitiveProp := streams.NewActivityStreamsSensitiveProperty()
sensitiveProp.AppendXMLSchemaBoolean(*s.Sensitive)
status.SetActivityStreamsSensitive(sensitiveProp)
return status, nil
}
// StatusToASDelete converts a gts model status into a Delete of that status, using just the
// URI of the status as object, and addressing the Delete appropriately.
func (c *Converter) StatusToASDelete(ctx context.Context, s *gtsmodel.Status) (vocab.ActivityStreamsDelete, error) {
// Parse / fetch some information
// we need to create the Delete.
if s.Account == nil {
var err error
s.Account, err = c.state.DB.GetAccountByID(ctx, s.AccountID)
if err != nil {
return nil, fmt.Errorf("StatusToASDelete: error retrieving author account from db: %w", err)
}
}
actorIRI, err := url.Parse(s.AccountURI)
if err != nil {
return nil, fmt.Errorf("StatusToASDelete: error parsing actorIRI %s: %w", s.AccountURI, err)
}
statusIRI, err := url.Parse(s.URI)
if err != nil {
return nil, fmt.Errorf("StatusToASDelete: error parsing statusIRI %s: %w", s.URI, err)
}
// Create a Delete.
delete := streams.NewActivityStreamsDelete()
// Set appropriate actor for the Delete.
deleteActor := streams.NewActivityStreamsActorProperty()
deleteActor.AppendIRI(actorIRI)
delete.SetActivityStreamsActor(deleteActor)
// Set the status IRI as the 'object' property.
// We should avoid serializing the whole status
// when doing a delete because it's wasteful and
// could accidentally leak the now-deleted status.
deleteObject := streams.NewActivityStreamsObjectProperty()
deleteObject.AppendIRI(statusIRI)
delete.SetActivityStreamsObject(deleteObject)
// Address the Delete appropriately.
toProp := streams.NewActivityStreamsToProperty()
ccProp := streams.NewActivityStreamsCcProperty()
// Unless the status was a direct message, we can
// address the Delete To the ActivityPub Public URI.
// This ensures that the Delete will have as wide an
// audience as possible.
//
// Because we're using just the status URI, not the
// whole status, it won't leak any sensitive info.
// At worst, a remote instance becomes aware of the
// URI for a status which is now deleted anyway.
if s.Visibility != gtsmodel.VisibilityDirect {
publicURI, err := url.Parse(pub.PublicActivityPubIRI)
if err != nil {
return nil, fmt.Errorf("StatusToASDelete: error parsing url %s: %w", pub.PublicActivityPubIRI, err)
}
toProp.AppendIRI(publicURI)
actorFollowersURI, err := url.Parse(s.Account.FollowersURI)
if err != nil {
return nil, fmt.Errorf("StatusToASDelete: error parsing url %s: %w", s.Account.FollowersURI, err)
}
ccProp.AppendIRI(actorFollowersURI)
}
// Always include the replied-to account and any
// mentioned accounts as addressees as well.
//
// Worst case scenario here is that a replied account
// who wasn't mentioned (and perhaps didn't see the
// message), sees that someone has now deleted a status
// in which they were replied to but not mentioned. In
// other words, they *might* see that someone subtooted
// about them, but they won't know what was said.
// Ensure mentions are populated.
mentions := s.Mentions
if len(s.MentionIDs) > len(mentions) {
mentions, err = c.state.DB.GetMentions(ctx, s.MentionIDs)
if err != nil {
return nil, fmt.Errorf("StatusToASDelete: error getting mentions: %w", err)
}
}
// Remember which accounts were mentioned
// here to avoid duplicating them later.
mentionedAccountIDs := make(map[string]interface{}, len(mentions))
// For direct messages, add URI
// to To, else just add to CC.
var f func(*url.URL)
if s.Visibility == gtsmodel.VisibilityDirect {
f = toProp.AppendIRI
} else {
f = ccProp.AppendIRI
}
for _, m := range mentions {
mentionedAccountIDs[m.TargetAccountID] = nil // Remember this ID.
iri, err := url.Parse(m.TargetAccount.URI)
if err != nil {
return nil, fmt.Errorf("StatusToAS: error parsing uri %s: %s", m.TargetAccount.URI, err)
}
f(iri)
}
if s.InReplyToAccountID != "" {
if _, ok := mentionedAccountIDs[s.InReplyToAccountID]; !ok {
// Only address to this account if it
// wasn't already included as a mention.
if s.InReplyToAccount == nil {
s.InReplyToAccount, err = c.state.DB.GetAccountByID(ctx, s.InReplyToAccountID)
if err != nil && !errors.Is(err, db.ErrNoEntries) {
return nil, fmt.Errorf("StatusToASDelete: db error getting account %s: %w", s.InReplyToAccountID, err)
}
}
if s.InReplyToAccount != nil {
inReplyToAccountURI, err := url.Parse(s.InReplyToAccount.URI)
if err != nil {
return nil, fmt.Errorf("StatusToASDelete: error parsing url %s: %w", s.InReplyToAccount.URI, err)
}
ccProp.AppendIRI(inReplyToAccountURI)
}
}
}
delete.SetActivityStreamsTo(toProp)
delete.SetActivityStreamsCc(ccProp)
return delete, nil
}
// FollowToASFollow converts a gts model Follow into an activity streams Follow, suitable for federation
func (c *Converter) FollowToAS(ctx context.Context, f *gtsmodel.Follow) (vocab.ActivityStreamsFollow, error) {
if err := c.state.DB.PopulateFollow(ctx, f); err != nil {
return nil, gtserror.Newf("error populating follow: %w", err)
}
// Parse out the various URIs we need for this
// origin account (who's doing the follow).
originAccountURI, err := url.Parse(f.Account.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(f.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
}
// MentionToAS converts a gts model mention into an activity streams Mention, suitable for federation
func (c *Converter) MentionToAS(ctx context.Context, m *gtsmodel.Mention) (vocab.ActivityStreamsMention, error) {
if m.TargetAccount == nil {
a, err := c.state.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
}
// TagToAS converts a gts model tag into a toot Hashtag, suitable for federation.
func (c *Converter) TagToAS(ctx context.Context, t *gtsmodel.Tag) (vocab.TootHashtag, error) {
// This is probably already lowercase,
// but let's err on the safe side.
nameLower := strings.ToLower(t.Name)
tagURLString := uris.GenerateURIForTag(nameLower)
// Create the tag.
tag := streams.NewTootHashtag()
// `href` should be the URL of the tag.
hrefProp := streams.NewActivityStreamsHrefProperty()
tagURL, err := url.Parse(tagURLString)
if err != nil {
return nil, gtserror.Newf("error parsing url %s: %w", tagURLString, err)
}
hrefProp.SetIRI(tagURL)
tag.SetActivityStreamsHref(hrefProp)
// `name` should be the name of the tag with the # prefix.
nameProp := streams.NewActivityStreamsNameProperty()
nameProp.AppendXMLSchemaString("#" + nameLower)
tag.SetActivityStreamsName(nameProp)
return tag, nil
}
// EmojiToAS converts a gts emoji into a mastodon ns Emoji, suitable for federation.
// we're making something like this:
//
// {
// "id": "https://example.com/emoji/123",
// "type": "Emoji",
// "name": ":kappa:",
// "icon": {
// "type": "Image",
// "mediaType": "image/png",
// "url": "https://example.com/files/kappa.png"
// }
// }
func (c *Converter) EmojiToAS(ctx context.Context, e *gtsmodel.Emoji) (vocab.TootEmoji, error) {
// create the emoji
emoji := streams.NewTootEmoji()
// set the ID property to the blocks's URI
idProp := streams.NewJSONLDIdProperty()
idIRI, err := url.Parse(e.URI)
if err != nil {
return nil, fmt.Errorf("EmojiToAS: error parsing uri %s: %s", e.URI, err)
}
idProp.Set(idIRI)
emoji.SetJSONLDId(idProp)
nameProp := streams.NewActivityStreamsNameProperty()
nameString := fmt.Sprintf(":%s:", e.Shortcode)
nameProp.AppendXMLSchemaString(nameString)
emoji.SetActivityStreamsName(nameProp)
iconProperty := streams.NewActivityStreamsIconProperty()
iconImage := streams.NewActivityStreamsImage()
mediaType := streams.NewActivityStreamsMediaTypeProperty()
mediaType.Set(e.ImageContentType)
iconImage.SetActivityStreamsMediaType(mediaType)
emojiURLProperty := streams.NewActivityStreamsUrlProperty()
emojiURL, err := url.Parse(e.ImageURL)
if err != nil {
return nil, fmt.Errorf("EmojiToAS: error parsing url %s: %s", e.ImageURL, err)
}
emojiURLProperty.AppendIRI(emojiURL)
iconImage.SetActivityStreamsUrl(emojiURLProperty)
iconProperty.AppendActivityStreamsImage(iconImage)
emoji.SetActivityStreamsIcon(iconProperty)
updatedProp := streams.NewActivityStreamsUpdatedProperty()
updatedProp.Set(e.ImageUpdatedAt)
emoji.SetActivityStreamsUpdated(updatedProp)
return emoji, nil
}
// AttachmentToAS converts a gts model media attachment into an activity streams Attachment, suitable for federation
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
}
// FaveToAS converts a gts model status fave into an activityStreams LIKE, suitable for federation.
// 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.state.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.state.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.state.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
}
// BoostToAS converts a gts model boost into an activityStreams ANNOUNCE, suitable for federation
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.state.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
}
// BlockToAS converts a gts model block into an activityStreams BLOCK, suitable for federation.
// 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.state.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.state.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
}
// StatusToASRepliesCollection converts a gts model status into an activityStreams REPLIES collection.
// 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
}
// StatusURIsToASRepliesPage returns a collection page with appropriate next/part of pagination.
// 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
}
// 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.
// 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.WrapStatusableInCreate(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
}
// 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.
// 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
}
// StatusesToASFeaturedCollection converts a slice of statuses into an ordered collection
// of URIs, suitable for serializing and serving via the activitypub API.
func (c *Converter) StatusesToASFeaturedCollection(ctx context.Context, featuredCollectionID string, statuses []*gtsmodel.Status) (vocab.ActivityStreamsOrderedCollection, error) {
collection := streams.NewActivityStreamsOrderedCollection()
collectionIDProp := streams.NewJSONLDIdProperty()
featuredCollectionIDURI, err := url.Parse(featuredCollectionID)
if err != nil {
return nil, fmt.Errorf("error parsing url %s", featuredCollectionID)
}
collectionIDProp.SetIRI(featuredCollectionIDURI)
collection.SetJSONLDId(collectionIDProp)
itemsProp := streams.NewActivityStreamsOrderedItemsProperty()
for _, s := range statuses {
uri, err := url.Parse(s.URI)
if err != nil {
return nil, fmt.Errorf("error parsing url %s", s.URI)
}
itemsProp.AppendIRI(uri)
}
collection.SetActivityStreamsOrderedItems(itemsProp)
totalItemsProp := streams.NewActivityStreamsTotalItemsProperty()
totalItemsProp.Set(len(statuses))
collection.SetActivityStreamsTotalItems(totalItemsProp)
return collection, nil
}
// ReportToASFlag converts a gts model report into an activitystreams FLAG, suitable for federation.
func (c *Converter) ReportToASFlag(ctx context.Context, r *gtsmodel.Report) (vocab.ActivityStreamsFlag, error) {
flag := streams.NewActivityStreamsFlag()
flagIDProp := streams.NewJSONLDIdProperty()
idURI, err := url.Parse(r.URI)
if err != nil {
return nil, fmt.Errorf("error parsing url %s: %w", r.URI, err)
}
flagIDProp.SetIRI(idURI)
flag.SetJSONLDId(flagIDProp)
// for privacy, set the actor as the INSTANCE ACTOR,
// not as the actor who created the report
instanceAccount, err := c.state.DB.GetInstanceAccount(ctx, "")
if err != nil {
return nil, fmt.Errorf("error getting instance account: %w", err)
}
instanceAccountIRI, err := url.Parse(instanceAccount.URI)
if err != nil {
return nil, fmt.Errorf("error parsing url %s: %w", instanceAccount.URI, err)
}
flagActorProp := streams.NewActivityStreamsActorProperty()
flagActorProp.AppendIRI(instanceAccountIRI)
flag.SetActivityStreamsActor(flagActorProp)
// content should be the comment submitted when the report was created
contentProp := streams.NewActivityStreamsContentProperty()
contentProp.AppendXMLSchemaString(r.Comment)
flag.SetActivityStreamsContent(contentProp)
// set at least the target account uri as the object of the flag
objectProp := streams.NewActivityStreamsObjectProperty()
targetAccountURI, err := url.Parse(r.TargetAccount.URI)
if err != nil {
return nil, fmt.Errorf("error parsing url %s: %w", r.TargetAccount.URI, err)
}
objectProp.AppendIRI(targetAccountURI)
// also set status URIs if they were provided with the report
for _, s := range r.Statuses {
statusURI, err := url.Parse(s.URI)
if err != nil {
return nil, fmt.Errorf("error parsing url %s: %w", s.URI, err)
}
objectProp.AppendIRI(statusURI)
}
flag.SetActivityStreamsObject(objectProp)
return flag, nil
}