jormungandr-bite/src/server/api/endpoints/posts/create.ts

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/**
* Module dependencies
*/
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import $ from 'cafy';
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import deepEqual = require('deep-equal');
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import parse from '../../common/text';
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import { default as Post, IPost, isValidText } from '../../models/post';
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import { default as User, ILocalAccount, IUser } from '../../models/user';
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import { default as Channel, IChannel } from '../../models/channel';
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import Following from '../../models/following';
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import Mute from '../../models/mute';
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import DriveFile from '../../models/drive-file';
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import Watching from '../../models/post-watching';
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import ChannelWatching from '../../models/channel-watching';
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import { pack } from '../../models/post';
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import notify from '../../common/notify';
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import watch from '../../common/watch-post';
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import event, { pushSw, publishChannelStream } from '../../event';
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import getAcct from '../../../common/user/get-acct';
import parseAcct from '../../../common/user/parse-acct';
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import config from '../../../../conf';
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/**
* Create a post
*
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* @param {any} params
* @param {any} user
* @param {any} app
* @return {Promise<any>}
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*/
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module.exports = (params, user: IUser, app) => new Promise(async (res, rej) => {
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// Get 'text' parameter
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const [text, textErr] = $(params.text).optional.string().pipe(isValidText).$;
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if (textErr) return rej('invalid text');
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// Get 'viaMobile' parameter
const [viaMobile = false, viaMobileErr] = $(params.viaMobile).optional.boolean().$;
if (viaMobileErr) return rej('invalid viaMobile');
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// Get 'tags' parameter
const [tags = [], tagsErr] = $(params.tags).optional.array('string').unique().eachQ(t => t.range(1, 32)).$;
if (tagsErr) return rej('invalid tags');
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// Get 'geo' parameter
const [geo, geoErr] = $(params.geo).optional.nullable.strict.object()
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.have('coordinates', $().array().length(2)
.item(0, $().number().range(-180, 180))
.item(1, $().number().range(-90, 90)))
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.have('altitude', $().nullable.number())
.have('accuracy', $().nullable.number())
.have('altitudeAccuracy', $().nullable.number())
.have('heading', $().nullable.number().range(0, 360))
.have('speed', $().nullable.number())
.$;
if (geoErr) return rej('invalid geo');
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// Get 'mediaIds' parameter
const [mediaIds, mediaIdsErr] = $(params.mediaIds).optional.array('id').unique().range(1, 4).$;
if (mediaIdsErr) return rej('invalid mediaIds');
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let files = [];
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if (mediaIds !== undefined) {
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// Fetch files
// forEach だと途中でエラーなどがあっても return できないので
// 敢えて for を使っています。
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for (const mediaId of mediaIds) {
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// Fetch file
// SELECT _id
const entity = await DriveFile.findOne({
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_id: mediaId,
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'metadata.userId': user._id
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});
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if (entity === null) {
return rej('file not found');
} else {
files.push(entity);
}
}
} else {
files = null;
}
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// Get 'repostId' parameter
const [repostId, repostIdErr] = $(params.repostId).optional.id().$;
if (repostIdErr) return rej('invalid repostId');
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let repost: IPost = null;
let isQuote = false;
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if (repostId !== undefined) {
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// Fetch repost to post
repost = await Post.findOne({
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_id: repostId
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});
if (repost == null) {
return rej('repostee is not found');
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} else if (repost.repostId && !repost.text && !repost.mediaIds) {
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return rej('cannot repost to repost');
}
// Fetch recently post
const latestPost = await Post.findOne({
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userId: user._id
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}, {
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sort: {
_id: -1
}
});
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isQuote = text != null || files != null;
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// 直近と同じRepost対象かつ引用じゃなかったらエラー
if (latestPost &&
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latestPost.repostId &&
latestPost.repostId.equals(repost._id) &&
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!isQuote) {
return rej('cannot repost same post that already reposted in your latest post');
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}
// 直近がRepost対象かつ引用じゃなかったらエラー
if (latestPost &&
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latestPost._id.equals(repost._id) &&
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!isQuote) {
return rej('cannot repost your latest post');
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}
}
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// Get 'replyId' parameter
const [replyId, replyIdErr] = $(params.replyId).optional.id().$;
if (replyIdErr) return rej('invalid replyId');
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let reply: IPost = null;
if (replyId !== undefined) {
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// Fetch reply
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reply = await Post.findOne({
_id: replyId
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});
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if (reply === null) {
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return rej('in reply to post is not found');
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}
// 返信対象が引用でないRepostだったらエラー
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if (reply.repostId && !reply.text && !reply.mediaIds) {
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return rej('cannot reply to repost');
}
}
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// Get 'channelId' parameter
const [channelId, channelIdErr] = $(params.channelId).optional.id().$;
if (channelIdErr) return rej('invalid channelId');
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let channel: IChannel = null;
if (channelId !== undefined) {
// Fetch channel
channel = await Channel.findOne({
_id: channelId
});
if (channel === null) {
return rej('channel not found');
}
// 返信対象の投稿がこのチャンネルじゃなかったらダメ
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if (reply && !channelId.equals(reply.channelId)) {
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return rej('チャンネル内部からチャンネル外部の投稿に返信することはできません');
}
// Repost対象の投稿がこのチャンネルじゃなかったらダメ
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if (repost && !channelId.equals(repost.channelId)) {
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return rej('チャンネル内部からチャンネル外部の投稿をRepostすることはできません');
}
// 引用ではないRepostはダメ
if (repost && !isQuote) {
return rej('チャンネル内部では引用ではないRepostをすることはできません');
}
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} else {
// 返信対象の投稿がチャンネルへの投稿だったらダメ
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if (reply && reply.channelId != null) {
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return rej('チャンネル外部からチャンネル内部の投稿に返信することはできません');
}
// Repost対象の投稿がチャンネルへの投稿だったらダメ
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if (repost && repost.channelId != null) {
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return rej('チャンネル外部からチャンネル内部の投稿をRepostすることはできません');
}
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}
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// Get 'poll' parameter
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const [poll, pollErr] = $(params.poll).optional.strict.object()
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.have('choices', $().array('string')
.unique()
.range(2, 10)
.each(c => c.length > 0 && c.length < 50))
.$;
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if (pollErr) return rej('invalid poll');
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if (poll) {
(poll as any).choices = (poll as any).choices.map((choice, i) => ({
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id: i, // IDを付与
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text: choice.trim(),
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votes: 0
}));
}
// テキストが無いかつ添付ファイルが無いかつRepostも無いかつ投票も無かったらエラー
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if (text === undefined && files === null && repost === null && poll === undefined) {
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return rej('text, mediaIds, repostId or poll is required');
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}
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// 直近の投稿と重複してたらエラー
// TODO: 直近の投稿が一日前くらいなら重複とは見なさない
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if (user.latestPost) {
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if (deepEqual({
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text: user.latestPost.text,
reply: user.latestPost.replyId ? user.latestPost.replyId.toString() : null,
repost: user.latestPost.repostId ? user.latestPost.repostId.toString() : null,
mediaIds: (user.latestPost.mediaIds || []).map(id => id.toString())
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}, {
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text: text,
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reply: reply ? reply._id.toString() : null,
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repost: repost ? repost._id.toString() : null,
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mediaIds: (files || []).map(file => file._id.toString())
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})) {
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return rej('duplicate');
}
}
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let tokens = null;
if (text) {
// Analyze
tokens = parse(text);
// Extract hashtags
const hashtags = tokens
.filter(t => t.type == 'hashtag')
.map(t => t.hashtag);
hashtags.forEach(tag => {
if (tags.indexOf(tag) == -1) {
tags.push(tag);
}
});
}
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// 投稿を作成
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const post = await Post.insert({
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createdAt: new Date(),
channelId: channel ? channel._id : undefined,
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index: channel ? channel.index + 1 : undefined,
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mediaIds: files ? files.map(file => file._id) : undefined,
replyId: reply ? reply._id : undefined,
repostId: repost ? repost._id : undefined,
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poll: poll,
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text: text,
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tags: tags,
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userId: user._id,
appId: app ? app._id : null,
viaMobile: viaMobile,
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geo,
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// 以下非正規化データ
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_reply: reply ? { userId: reply.userId } : undefined,
_repost: repost ? { userId: repost.userId } : undefined,
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});
// Serialize
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const postObj = await pack(post);
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// Reponse
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res({
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createdPost: postObj
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});
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//#region Post processes
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User.update({ _id: user._id }, {
$set: {
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latestPost: post
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}
});
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const mentions = [];
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async function addMention(mentionee, reason) {
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// Reject if already added
if (mentions.some(x => x.equals(mentionee))) return;
// Add mention
mentions.push(mentionee);
// Publish event
if (!user._id.equals(mentionee)) {
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const mentioneeMutes = await Mute.find({
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muterId: mentionee,
deletedAt: { $exists: false }
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});
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const mentioneesMutedUserIds = mentioneeMutes.map(m => m.muteeId.toString());
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if (mentioneesMutedUserIds.indexOf(user._id.toString()) == -1) {
event(mentionee, reason, postObj);
pushSw(mentionee, reason, postObj);
}
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}
}
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// タイムラインへの投稿
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if (!channel) {
// Publish event to myself's stream
event(user._id, 'post', postObj);
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// Fetch all followers
const followers = await Following
.find({
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followeeId: user._id,
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// 削除されたドキュメントは除く
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deletedAt: { $exists: false }
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}, {
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followerId: true,
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_id: false
});
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// Publish event to followers stream
followers.forEach(following =>
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event(following.followerId, 'post', postObj));
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}
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// チャンネルへの投稿
if (channel) {
// Increment channel index(posts count)
Channel.update({ _id: channel._id }, {
$inc: {
index: 1
}
});
// Publish event to channel
publishChannelStream(channel._id, 'post', postObj);
// Get channel watchers
const watches = await ChannelWatching.find({
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channelId: channel._id,
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// 削除されたドキュメントは除く
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deletedAt: { $exists: false }
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});
// チャンネルの視聴者(のタイムライン)に配信
watches.forEach(w => {
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event(w.userId, 'post', postObj);
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});
}
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// Increment my posts count
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User.update({ _id: user._id }, {
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$inc: {
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postsCount: 1
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}
});
// If has in reply to post
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if (reply) {
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// Increment replies count
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Post.update({ _id: reply._id }, {
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$inc: {
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repliesCount: 1
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}
});
// 自分自身へのリプライでない限りは通知を作成
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notify(reply.userId, user._id, 'reply', {
postId: post._id
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});
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// Fetch watchers
Watching
.find({
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postId: reply._id,
userId: { $ne: user._id },
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// 削除されたドキュメントは除く
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deletedAt: { $exists: false }
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}, {
fields: {
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userId: true
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}
})
.then(watchers => {
watchers.forEach(watcher => {
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notify(watcher.userId, user._id, 'reply', {
postId: post._id
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});
});
});
// この投稿をWatchする
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if ((user.account as ILocalAccount).settings.autoWatch !== false) {
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watch(user._id, reply);
}
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// Add mention
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addMention(reply.userId, 'reply');
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}
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// If it is repost
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if (repost) {
// Notify
const type = text ? 'quote' : 'repost';
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notify(repost.userId, user._id, type, {
postId: post._id
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});
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// Fetch watchers
Watching
.find({
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postId: repost._id,
userId: { $ne: user._id },
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// 削除されたドキュメントは除く
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deletedAt: { $exists: false }
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}, {
fields: {
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userId: true
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}
})
.then(watchers => {
watchers.forEach(watcher => {
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notify(watcher.userId, user._id, type, {
postId: post._id
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});
});
});
// この投稿をWatchする
// TODO: ユーザーが「Repostしたときに自動でWatchする」設定を
// オフにしていた場合はしない
watch(user._id, repost);
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// If it is quote repost
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if (text) {
// Add mention
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addMention(repost.userId, 'quote');
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} else {
// Publish event
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if (!user._id.equals(repost.userId)) {
event(repost.userId, 'repost', postObj);
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}
}
// 今までで同じ投稿をRepostしているか
const existRepost = await Post.findOne({
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userId: user._id,
repostId: repost._id,
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_id: {
$ne: post._id
}
});
if (!existRepost) {
// Update repostee status
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Post.update({ _id: repost._id }, {
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$inc: {
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repostCount: 1
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}
});
}
}
// If has text content
if (text) {
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/*
// Extract a hashtags
const hashtags = tokens
.filter(t => t.type == 'hashtag')
.map(t => t.hashtag)
// Drop dupulicates
.filter((v, i, s) => s.indexOf(v) == i);
// ハッシュタグをデータベースに登録
registerHashtags(user, hashtags);
*/
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// Extract an '@' mentions
const atMentions = tokens
.filter(t => t.type == 'mention')
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.map(getAcct)
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// Drop dupulicates
.filter((v, i, s) => s.indexOf(v) == i);
// Resolve all mentions
await Promise.all(atMentions.map(async (mention) => {
// Fetch mentioned user
// SELECT _id
const mentionee = await User
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.findOne(parseAcct(mention), { _id: true });
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// When mentioned user not found
if (mentionee == null) return;
// 既に言及されたユーザーに対する返信や引用repostの場合も無視
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if (reply && reply.userId.equals(mentionee._id)) return;
if (repost && repost.userId.equals(mentionee._id)) return;
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// Add mention
addMention(mentionee._id, 'mention');
// Create notification
notify(mentionee._id, user._id, 'mention', {
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postId: post._id
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});
return;
}));
}
// Register to search database
if (text && config.elasticsearch.enable) {
const es = require('../../../db/elasticsearch');
es.index({
index: 'misskey',
type: 'post',
id: post._id.toString(),
body: {
text: post.text
}
});
}
// Append mentions data
if (mentions.length > 0) {
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Post.update({ _id: post._id }, {
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$set: {
mentions: mentions
}
});
}
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//#endregion
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});