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import { publishNoteStream } from '../stream';
import renderDelete from '../../remote/activitypub/renderer/delete';
import renderAnnounce from '../../remote/activitypub/renderer/announce';
import renderUndo from '../../remote/activitypub/renderer/undo';
import { renderActivity } from '../../remote/activitypub/renderer';
import renderTombstone from '../../remote/activitypub/renderer/tombstone';
import config from '@/config';
import { registerOrFetchInstanceDoc } from '../register-or-fetch-instance-doc';
import { User, ILocalUser, IRemoteUser } from '../../models/entities/user';
import { Note, IMentionedRemoteUsers } from '../../models/entities/note';
import { Notes, Users, Instances } from '../../models';
import { notesChart, perUserNotesChart, instanceChart } from '../chart';
import { deliverToFollowers, deliverToUser } from '../../remote/activitypub/deliver-manager';
import { countSameRenotes } from '@/misc/count-same-renotes';
import { deliverToRelays } from '../relay';
import { Brackets, In } from 'typeorm';
/**
* 投稿を削除します。
* @param user 投稿者
* @param note 投稿
*/
export default async function(user: User, note: Note, quiet = false) {
const deletedAt = new Date();
// この投稿を除く指定したユーザーによる指定したノートのリノートが存在しないとき
if (note.renoteId && (await countSameRenotes(user.id, note.renoteId, note.id)) === 0) {
Notes.decrement({ id: note.renoteId }, 'renoteCount', 1);
Notes.decrement({ id: note.renoteId }, 'score', 1);
}
if (!quiet) {
publishNoteStream(note.id, 'deleted', {
deletedAt: deletedAt
});
//#region ローカルの投稿なら削除アクティビティを配送
if (Users.isLocalUser(user) && !note.localOnly) {
let renote: Note | undefined;
// if deletd note is renote
if (note.renoteId && note.text == null && !note.hasPoll && (note.fileIds == null || note.fileIds.length == 0)) {
renote = await Notes.findOne({
id: note.renoteId
});
}
const content = renderActivity(renote
? renderUndo(renderAnnounce(renote.uri || `${config.url}/notes/${renote.id}`, note), user)
: renderDelete(renderTombstone(`${config.url}/notes/${note.id}`), user));
deliverToConcerned(user, note, content);
}
// also deliever delete activity to cascaded notes
const cascadingNotes = (await findCascadingNotes(note)).filter(note => !note.localOnly); // filter out local-only notes
for (const cascadingNote of cascadingNotes) {
if (!cascadingNote.user) continue;
if (!Users.isLocalUser(cascadingNote.user)) continue;
const content = renderActivity(renderDelete(renderTombstone(`${config.url}/notes/${cascadingNote.id}`), cascadingNote.user));
deliverToConcerned(cascadingNote.user, cascadingNote, content);
}
//#endregion
// 統計を更新
notesChart.update(note, false);
perUserNotesChart.update(user, note, false);
if (Users.isRemoteUser(user)) {
registerOrFetchInstanceDoc(user.host).then(i => {
Instances.decrement({ id: i.id }, 'notesCount', 1);
instanceChart.updateNote(i.host, note, false);
});
}
}
await Notes.delete({
id: note.id,
userId: user.id
});
}
async function findCascadingNotes(note: Note) {
const cascadingNotes: Note[] = [];
const recursive = async (noteId: string) => {
const query = Notes.createQueryBuilder('note')
.where('note.replyId = :noteId', { noteId })
.orWhere(new Brackets(q => {
q.where('note.renoteId = :noteId', { noteId })
.andWhere('note.text IS NOT NULL');
}))
.leftJoinAndSelect('note.user', 'user');
const replies = await query.getMany();
for (const reply of replies) {
cascadingNotes.push(reply);
await recursive(reply.id);
}
};
await recursive(note.id);
return cascadingNotes.filter(note => note.userHost === null); // filter out non-local users
}
async function getMentionedRemoteUsers(note: Note) {
const where = [] as any[];
// mention / reply / dm
const uris = (JSON.parse(note.mentionedRemoteUsers) as IMentionedRemoteUsers).map(x => x.uri);
if (uris.length > 0) {
where.push(
{ uri: In(uris) }
);
}
// renote / quote
if (note.renoteUserId) {
where.push({
id: note.renoteUserId
});
}
if (where.length === 0) return [];
return await Users.find({
where
}) as IRemoteUser[];
}
async function deliverToConcerned(user: ILocalUser, note: Note, content: any) {
deliverToFollowers(user, content);
deliverToRelays(user, content);
const remoteUsers = await getMentionedRemoteUsers(note);
for (const remoteUser of remoteUsers) {
deliverToUser(user, content, remoteUser);
}
}
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