GoToSocial/internal/typeutils/astointernal.go

713 lines
23 KiB
Go

/*
GoToSocial
Copyright (C) 2021-2023 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"
"errors"
"fmt"
"net/url"
"github.com/miekg/dns"
"github.com/superseriousbusiness/gotosocial/internal/ap"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/log"
"github.com/superseriousbusiness/gotosocial/internal/uris"
)
func (c *converter) ASRepresentationToAccount(ctx context.Context, accountable ap.Accountable, accountDomain string) (*gtsmodel.Account, error) {
// first check if we actually already know this account
uriProp := accountable.GetJSONLDId()
if uriProp == nil || !uriProp.IsIRI() {
return nil, errors.New("no id property found on person, or id was not an iri")
}
uri := uriProp.GetIRI()
// we don't know the account, or we're being told to update it, so we need to generate it from the person -- at least we already have the URI!
acct := &gtsmodel.Account{}
acct.URI = uri.String()
// Username aka preferredUsername
// We need this one so bail if it's not set.
username, err := ap.ExtractPreferredUsername(accountable)
if err != nil {
return nil, fmt.Errorf("couldn't extract username: %s", err)
}
acct.Username = username
// Domain
if accountDomain != "" {
acct.Domain = accountDomain
} else {
acct.Domain = uri.Host
}
// avatar aka icon
// if this one isn't extractable in a format we recognise we'll just skip it
if avatarURL, err := ap.ExtractIconURL(accountable); err == nil {
acct.AvatarRemoteURL = avatarURL.String()
}
// header aka image
// if this one isn't extractable in a format we recognise we'll just skip it
if headerURL, err := ap.ExtractImageURL(accountable); err == nil {
acct.HeaderRemoteURL = headerURL.String()
}
// display name aka name
// we default to the username, but take the more nuanced name property if it exists
if displayName := ap.ExtractName(accountable); displayName != "" {
acct.DisplayName = displayName
} else {
acct.DisplayName = username
}
// account emojis (used in bio, display name, fields)
if emojis, err := ap.ExtractEmojis(accountable); err != nil {
log.Infof(nil, "error extracting account emojis: %s", err)
} else {
acct.Emojis = emojis
}
// TODO: fields aka attachment array
// note aka summary
acct.Note = ap.ExtractSummary(accountable)
// check for bot and actor type
switch accountable.GetTypeName() {
case ap.ActorPerson, ap.ActorGroup, ap.ActorOrganization:
// people, groups, and organizations aren't bots
bot := false
acct.Bot = &bot
// apps and services are
case ap.ActorApplication, ap.ActorService:
bot := true
acct.Bot = &bot
default:
// we don't know what this is!
return nil, fmt.Errorf("type name %s not recognised or not convertible to ap.ActivityStreamsActor", accountable.GetTypeName())
}
acct.ActorType = accountable.GetTypeName()
// assume not memorial (todo)
memorial := false
acct.Memorial = &memorial
// assume not sensitive (todo)
sensitive := false
acct.Sensitive = &sensitive
// assume not hide collections (todo)
hideCollections := false
acct.HideCollections = &hideCollections
// locked aka manuallyApprovesFollowers
locked := true
acct.Locked = &locked // assume locked by default
maf := accountable.GetActivityStreamsManuallyApprovesFollowers()
if maf != nil && maf.IsXMLSchemaBoolean() {
locked = maf.Get()
acct.Locked = &locked
}
// discoverable
// default to false -- take custom value if it's set though
discoverable := false
acct.Discoverable = &discoverable
d, err := ap.ExtractDiscoverable(accountable)
if err == nil {
acct.Discoverable = &d
}
// assume not rss feed
enableRSS := false
acct.EnableRSS = &enableRSS
// url property
url, err := ap.ExtractURL(accountable)
if err == nil {
// take the URL if we can find it
acct.URL = url.String()
} else {
// otherwise just take the account URI as the URL
acct.URL = uri.String()
}
// InboxURI
if accountable.GetActivityStreamsInbox() != nil && accountable.GetActivityStreamsInbox().GetIRI() != nil {
acct.InboxURI = accountable.GetActivityStreamsInbox().GetIRI().String()
}
// SharedInboxURI:
// only trust shared inbox if it has at least two domains,
// from the right, in common with the domain of the account
if sharedInboxURI := ap.ExtractSharedInbox(accountable); // nocollapse
sharedInboxURI != nil && dns.CompareDomainName(acct.Domain, sharedInboxURI.Host) >= 2 {
sharedInbox := sharedInboxURI.String()
acct.SharedInboxURI = &sharedInbox
}
// OutboxURI
if accountable.GetActivityStreamsOutbox() != nil && accountable.GetActivityStreamsOutbox().GetIRI() != nil {
acct.OutboxURI = accountable.GetActivityStreamsOutbox().GetIRI().String()
}
// FollowingURI
if accountable.GetActivityStreamsFollowing() != nil && accountable.GetActivityStreamsFollowing().GetIRI() != nil {
acct.FollowingURI = accountable.GetActivityStreamsFollowing().GetIRI().String()
}
// FollowersURI
if accountable.GetActivityStreamsFollowers() != nil && accountable.GetActivityStreamsFollowers().GetIRI() != nil {
acct.FollowersURI = accountable.GetActivityStreamsFollowers().GetIRI().String()
}
// FeaturedURI
if accountable.GetTootFeatured() != nil && accountable.GetTootFeatured().GetIRI() != nil {
acct.FeaturedCollectionURI = accountable.GetTootFeatured().GetIRI().String()
}
// TODO: FeaturedTagsURI
// TODO: alsoKnownAs
// publicKey
pkey, pkeyURL, err := ap.ExtractPublicKeyForOwner(accountable, uri)
if err != nil {
return nil, fmt.Errorf("couldn't get public key for person %s: %s", uri.String(), err)
}
acct.PublicKey = pkey
acct.PublicKeyURI = pkeyURL.String()
return acct, nil
}
func (c *converter) extractAttachments(i ap.WithAttachment) []*gtsmodel.MediaAttachment {
attachmentProp := i.GetActivityStreamsAttachment()
if attachmentProp == nil {
return nil
}
attachments := make([]*gtsmodel.MediaAttachment, 0, attachmentProp.Len())
for iter := attachmentProp.Begin(); iter != attachmentProp.End(); iter = iter.Next() {
t := iter.GetType()
if t == nil {
continue
}
attachmentable, ok := t.(ap.Attachmentable)
if !ok {
log.Error(nil, "ap attachment was not attachmentable")
continue
}
attachment, err := ap.ExtractAttachment(attachmentable)
if err != nil {
log.Errorf(nil, "error extracting attachment: %s", err)
continue
}
attachments = append(attachments, attachment)
}
return attachments
}
func (c *converter) ASStatusToStatus(ctx context.Context, statusable ap.Statusable) (*gtsmodel.Status, error) {
status := &gtsmodel.Status{}
// uri at which this status is reachable
uriProp := statusable.GetJSONLDId()
if uriProp == nil || !uriProp.IsIRI() {
return nil, errors.New("no id property found, or id was not an iri")
}
status.URI = uriProp.GetIRI().String()
l := log.WithContext(ctx).
WithField("statusURI", status.URI)
// web url for viewing this status
if statusURL, err := ap.ExtractURL(statusable); err == nil {
status.URL = statusURL.String()
} else {
// if no URL was set, just take the URI
status.URL = status.URI
}
// the html-formatted content of this status
status.Content = ap.ExtractContent(statusable)
// attachments to dereference and fetch later on (we don't do that here)
status.Attachments = c.extractAttachments(statusable)
// hashtags to dereference later on
if hashtags, err := ap.ExtractHashtags(statusable); err != nil {
l.Infof("ASStatusToStatus: error extracting status hashtags: %s", err)
} else {
status.Tags = hashtags
}
// emojis to dereference and fetch later on
if emojis, err := ap.ExtractEmojis(statusable); err != nil {
l.Infof("ASStatusToStatus: error extracting status emojis: %s", err)
} else {
status.Emojis = emojis
}
// mentions to dereference later on
if mentions, err := ap.ExtractMentions(statusable); err != nil {
l.Infof("ASStatusToStatus: error extracting status mentions: %s", err)
} else {
status.Mentions = mentions
}
// cw string for this status
// prefer Summary, fall back to Name
if summary := ap.ExtractSummary(statusable); summary != "" {
status.ContentWarning = summary
} else {
status.ContentWarning = ap.ExtractName(statusable)
}
// when was this status created?
published, err := ap.ExtractPublished(statusable)
if err != nil {
l.Infof("ASStatusToStatus: error extracting status published: %s", err)
} else {
status.CreatedAt = published
status.UpdatedAt = published
}
// which account posted this status?
// if we don't know the account yet we can dereference it later
attributedTo, err := ap.ExtractAttributedTo(statusable)
if err != nil {
return nil, errors.New("ASStatusToStatus: attributedTo was empty")
}
status.AccountURI = attributedTo.String()
statusOwner, err := c.db.GetAccountByURI(ctx, attributedTo.String())
if err != nil {
return nil, fmt.Errorf("ASStatusToStatus: couldn't get status owner from db: %s", err)
}
status.AccountID = statusOwner.ID
status.AccountURI = statusOwner.URI
status.Account = statusOwner
// check if there's a post that this is a reply to
inReplyToURI := ap.ExtractInReplyToURI(statusable)
if inReplyToURI != nil {
// something is set so we can at least set this field on the
// status and dereference using this later if we need to
status.InReplyToURI = inReplyToURI.String()
// now we can check if we have the replied-to status in our db already
if inReplyToStatus, err := c.db.GetStatusByURI(ctx, inReplyToURI.String()); err == nil {
// we have the status in our database already
// so we can set these fields here and now...
status.InReplyToID = inReplyToStatus.ID
status.InReplyToAccountID = inReplyToStatus.AccountID
status.InReplyTo = inReplyToStatus
if status.InReplyToAccount == nil {
if inReplyToAccount, err := c.db.GetAccountByID(ctx, inReplyToStatus.AccountID); err == nil {
status.InReplyToAccount = inReplyToAccount
}
}
}
}
// visibility entry for this status
visibility, err := ap.ExtractVisibility(statusable, status.Account.FollowersURI)
if err != nil {
return nil, fmt.Errorf("ASStatusToStatus: error extracting visibility: %s", err)
}
status.Visibility = visibility
// advanced visibility for this status
// TODO: a lot of work to be done here -- a new type needs to be created for this in go-fed/activity using ASTOOL
// for now we just set everything to true
federated := true
boostable := true
replyable := true
likeable := true
status.Federated = &federated
status.Boostable = &boostable
status.Replyable = &replyable
status.Likeable = &likeable
// sensitive
sensitive := ap.ExtractSensitive(statusable)
status.Sensitive = &sensitive
// language
// we might be able to extract this from the contentMap field
// ActivityStreamsType
status.ActivityStreamsType = statusable.GetTypeName()
return status, nil
}
func (c *converter) ASFollowToFollowRequest(ctx context.Context, followable ap.Followable) (*gtsmodel.FollowRequest, error) {
idProp := followable.GetJSONLDId()
if idProp == nil || !idProp.IsIRI() {
return nil, errors.New("no id property set on follow, or was not an iri")
}
uri := idProp.GetIRI().String()
origin, err := ap.ExtractActor(followable)
if err != nil {
return nil, errors.New("error extracting actor property from follow")
}
originAccount, err := c.db.GetAccountByURI(ctx, origin.String())
if err != nil {
return nil, fmt.Errorf("error extracting account with uri %s from the database: %s", origin.String(), err)
}
target, err := ap.ExtractObject(followable)
if err != nil {
return nil, errors.New("error extracting object property from follow")
}
targetAccount, err := c.db.GetAccountByURI(ctx, target.String())
if err != nil {
return nil, fmt.Errorf("error extracting account with uri %s from the database: %s", origin.String(), err)
}
followRequest := &gtsmodel.FollowRequest{
URI: uri,
AccountID: originAccount.ID,
TargetAccountID: targetAccount.ID,
}
return followRequest, nil
}
func (c *converter) ASFollowToFollow(ctx context.Context, followable ap.Followable) (*gtsmodel.Follow, error) {
idProp := followable.GetJSONLDId()
if idProp == nil || !idProp.IsIRI() {
return nil, errors.New("no id property set on follow, or was not an iri")
}
uri := idProp.GetIRI().String()
origin, err := ap.ExtractActor(followable)
if err != nil {
return nil, errors.New("error extracting actor property from follow")
}
originAccount, err := c.db.GetAccountByURI(ctx, origin.String())
if err != nil {
return nil, fmt.Errorf("error extracting account with uri %s from the database: %s", origin.String(), err)
}
target, err := ap.ExtractObject(followable)
if err != nil {
return nil, errors.New("error extracting object property from follow")
}
targetAccount, err := c.db.GetAccountByURI(ctx, target.String())
if err != nil {
return nil, fmt.Errorf("error extracting account with uri %s from the database: %s", origin.String(), err)
}
follow := &gtsmodel.Follow{
URI: uri,
AccountID: originAccount.ID,
TargetAccountID: targetAccount.ID,
}
return follow, nil
}
func (c *converter) ASLikeToFave(ctx context.Context, likeable ap.Likeable) (*gtsmodel.StatusFave, error) {
idProp := likeable.GetJSONLDId()
if idProp == nil || !idProp.IsIRI() {
return nil, errors.New("no id property set on like, or was not an iri")
}
uri := idProp.GetIRI().String()
origin, err := ap.ExtractActor(likeable)
if err != nil {
return nil, errors.New("error extracting actor property from like")
}
originAccount, err := c.db.GetAccountByURI(ctx, origin.String())
if err != nil {
return nil, fmt.Errorf("error extracting account with uri %s from the database: %s", origin.String(), err)
}
target, err := ap.ExtractObject(likeable)
if err != nil {
return nil, errors.New("error extracting object property from like")
}
targetStatus, err := c.db.GetStatusByURI(ctx, target.String())
if err != nil {
return nil, fmt.Errorf("error extracting status with uri %s from the database: %s", target.String(), err)
}
var targetAccount *gtsmodel.Account
if targetStatus.Account != nil {
targetAccount = targetStatus.Account
} else {
a, err := c.db.GetAccountByID(ctx, targetStatus.AccountID)
if err != nil {
return nil, fmt.Errorf("error extracting account with id %s from the database: %s", targetStatus.AccountID, err)
}
targetAccount = a
}
return &gtsmodel.StatusFave{
AccountID: originAccount.ID,
Account: originAccount,
TargetAccountID: targetAccount.ID,
TargetAccount: targetAccount,
StatusID: targetStatus.ID,
Status: targetStatus,
URI: uri,
}, nil
}
func (c *converter) ASBlockToBlock(ctx context.Context, blockable ap.Blockable) (*gtsmodel.Block, error) {
idProp := blockable.GetJSONLDId()
if idProp == nil || !idProp.IsIRI() {
return nil, errors.New("ASBlockToBlock: no id property set on block, or was not an iri")
}
uri := idProp.GetIRI().String()
origin, err := ap.ExtractActor(blockable)
if err != nil {
return nil, errors.New("ASBlockToBlock: error extracting actor property from block")
}
originAccount, err := c.db.GetAccountByURI(ctx, origin.String())
if err != nil {
return nil, fmt.Errorf("error extracting account with uri %s from the database: %s", origin.String(), err)
}
target, err := ap.ExtractObject(blockable)
if err != nil {
return nil, errors.New("ASBlockToBlock: error extracting object property from block")
}
targetAccount, err := c.db.GetAccountByURI(ctx, target.String())
if err != nil {
return nil, fmt.Errorf("error extracting account with uri %s from the database: %s", origin.String(), err)
}
return &gtsmodel.Block{
AccountID: originAccount.ID,
Account: originAccount,
TargetAccountID: targetAccount.ID,
TargetAccount: targetAccount,
URI: uri,
}, nil
}
func (c *converter) ASAnnounceToStatus(ctx context.Context, announceable ap.Announceable) (*gtsmodel.Status, bool, error) {
status := &gtsmodel.Status{}
isNew := true
// check if we already have the boost in the database
idProp := announceable.GetJSONLDId()
if idProp == nil || !idProp.IsIRI() {
return nil, isNew, errors.New("no id property set on announce, or was not an iri")
}
uri := idProp.GetIRI().String()
if status, err := c.db.GetStatusByURI(ctx, uri); err == nil {
// we already have it, great, just return it as-is :)
isNew = false
return status, isNew, nil
}
status.URI = uri
// get the URI of the announced/boosted status
boostedStatusURI, err := ap.ExtractObject(announceable)
if err != nil {
return nil, isNew, fmt.Errorf("ASAnnounceToStatus: error getting object from announce: %s", err)
}
// set the URI on the new status for dereferencing later
status.BoostOf = &gtsmodel.Status{
URI: boostedStatusURI.String(),
}
// get the published time for the announce
published, err := ap.ExtractPublished(announceable)
if err != nil {
return nil, isNew, fmt.Errorf("ASAnnounceToStatus: error extracting published time: %s", err)
}
status.CreatedAt = published
status.UpdatedAt = published
// get the actor's IRI (ie., the person who boosted the status)
actor, err := ap.ExtractActor(announceable)
if err != nil {
return nil, isNew, fmt.Errorf("ASAnnounceToStatus: error extracting actor: %s", err)
}
// get the boosting account based on the URI
// this should have been dereferenced already before we hit this point so we can confidently error out if we don't have it
boostingAccount, err := c.db.GetAccountByURI(ctx, actor.String())
if err != nil {
return nil, isNew, fmt.Errorf("ASAnnounceToStatus: error in db fetching account with uri %s: %s", actor.String(), err)
}
status.AccountID = boostingAccount.ID
status.AccountURI = boostingAccount.URI
status.Account = boostingAccount
// these will all be wrapped in the boosted status so set them empty here
status.AttachmentIDs = []string{}
status.TagIDs = []string{}
status.MentionIDs = []string{}
status.EmojiIDs = []string{}
visibility, err := ap.ExtractVisibility(announceable, boostingAccount.FollowersURI)
if err != nil {
return nil, isNew, fmt.Errorf("ASAnnounceToStatus: error extracting visibility: %s", err)
}
status.Visibility = visibility
// the rest of the fields will be taken from the target status, but it's not our job to do the dereferencing here
return status, isNew, nil
}
func (c *converter) ASFlagToReport(ctx context.Context, flaggable ap.Flaggable) (*gtsmodel.Report, error) {
// Extract flag uri.
idProp := flaggable.GetJSONLDId()
if idProp == nil || !idProp.IsIRI() {
return nil, errors.New("ASFlagToReport: no id property set on flaggable, or was not an iri")
}
uri := idProp.GetIRI().String()
// Extract account that created the flag / report.
// This will usually be an instance actor.
actor, err := ap.ExtractActor(flaggable)
if err != nil {
return nil, fmt.Errorf("ASFlagToReport: error extracting actor: %w", err)
}
account, err := c.db.GetAccountByURI(ctx, actor.String())
if err != nil {
return nil, fmt.Errorf("ASFlagToReport: error in db fetching account with uri %s: %w", actor.String(), err)
}
// Get the content of the report.
// For Mastodon, this will just be a string, or nothing.
// In Misskey's case, it may also contain the URLs of
// one or more reported statuses, so extract these too.
content := ap.ExtractContent(flaggable)
statusURIs := []*url.URL{}
inlineURLs := misskeyReportInlineURLs(content)
statusURIs = append(statusURIs, inlineURLs...)
// Extract account and statuses targeted by the flag / report.
//
// Incoming flags from mastodon usually have a target account uri as
// first entry in objects, followed by URIs of one or more statuses.
// Misskey on the other hand will just contain the target account uri.
// We shouldn't assume the order of the objects will correspond to this,
// but we can check that he objects slice contains just one account, and
// maybe some statuses.
//
// Throw away anything that's not relevant to us.
objects, err := ap.ExtractObjects(flaggable)
if err != nil {
return nil, fmt.Errorf("ASFlagToReport: error extracting objects: %w", err)
}
if len(objects) == 0 {
return nil, errors.New("ASFlagToReport: flaggable objects empty, can't create report")
}
var targetAccountURI *url.URL
for _, object := range objects {
switch {
case object.Host != config.GetHost():
// object doesn't belong to us, just ignore it
continue
case uris.IsUserPath(object):
if targetAccountURI != nil {
return nil, errors.New("ASFlagToReport: flaggable objects contained more than one target account uri")
}
targetAccountURI = object
case uris.IsStatusesPath(object):
statusURIs = append(statusURIs, object)
}
}
// Make sure we actually have a target account now.
if targetAccountURI == nil {
return nil, errors.New("ASFlagToReport: flaggable objects contained no recognizable target account uri")
}
targetAccount, err := c.db.GetAccountByURI(ctx, targetAccountURI.String())
if err != nil {
if errors.Is(err, db.ErrNoEntries) {
return nil, fmt.Errorf("ASFlagToReport: account with uri %s could not be found in the db", targetAccountURI.String())
}
return nil, fmt.Errorf("ASFlagToReport: db error getting account with uri %s: %w", targetAccountURI.String(), err)
}
// If we got some status URIs, try to get them from the db now
var (
statusIDs = make([]string, 0, len(statusURIs))
statuses = make([]*gtsmodel.Status, 0, len(statusURIs))
)
for _, statusURI := range statusURIs {
statusURIString := statusURI.String()
// try getting this status by URI first, then URL
status, err := c.db.GetStatusByURI(ctx, statusURIString)
if err != nil {
if !errors.Is(err, db.ErrNoEntries) {
return nil, fmt.Errorf("ASFlagToReport: db error getting status with uri %s: %w", statusURIString, err)
}
status, err = c.db.GetStatusByURL(ctx, statusURIString)
if err != nil {
if !errors.Is(err, db.ErrNoEntries) {
return nil, fmt.Errorf("ASFlagToReport: db error getting status with url %s: %w", statusURIString, err)
}
log.Warnf(nil, "reported status %s could not be found in the db, skipping it", statusURIString)
continue
}
}
if status.AccountID != targetAccount.ID {
// status doesn't belong to this account, ignore it
continue
}
statusIDs = append(statusIDs, status.ID)
statuses = append(statuses, status)
}
// id etc should be handled the caller, so just return what we got
return &gtsmodel.Report{
URI: uri,
AccountID: account.ID,
Account: account,
TargetAccountID: targetAccount.ID,
TargetAccount: targetAccount,
Comment: content,
StatusIDs: statusIDs,
Statuses: statuses,
}, nil
}