Sharkey/src/server/api/endpoints/notes/timeline.ts

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/**
* Module dependencies
*/
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import $ from 'cafy'; import ID from '../../../../cafy-id';
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import Note from '../../../../models/note';
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import Mute from '../../../../models/mute';
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import { getFriends } from '../../common/get-friends';
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import { pack } from '../../../../models/note';
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/**
* Get timeline of myself
*/
module.exports = async (params, user, app) => {
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// Get 'limit' parameter
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const [limit = 10, limitErr] = $.num.optional().range(1, 100).get(params.limit);
if (limitErr) throw 'invalid limit param';
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// Get 'sinceId' parameter
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const [sinceId, sinceIdErr] = $.type(ID).optional().get(params.sinceId);
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if (sinceIdErr) throw 'invalid sinceId param';
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// Get 'untilId' parameter
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const [untilId, untilIdErr] = $.type(ID).optional().get(params.untilId);
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if (untilIdErr) throw 'invalid untilId param';
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// Get 'sinceDate' parameter
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const [sinceDate, sinceDateErr] = $.num.optional().get(params.sinceDate);
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if (sinceDateErr) throw 'invalid sinceDate param';
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// Get 'untilDate' parameter
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const [untilDate, untilDateErr] = $.num.optional().get(params.untilDate);
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if (untilDateErr) throw 'invalid untilDate param';
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// Check if only one of sinceId, untilId, sinceDate, untilDate specified
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if ([sinceId, untilId, sinceDate, untilDate].filter(x => x != null).length > 1) {
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throw 'only one of sinceId, untilId, sinceDate, untilDate can be specified';
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}
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// Get 'includeMyRenotes' parameter
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const [includeMyRenotes = true, includeMyRenotesErr] = $.bool.optional().get(params.includeMyRenotes);
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if (includeMyRenotesErr) throw 'invalid includeMyRenotes param';
// Get 'includeRenotedMyNotes' parameter
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const [includeRenotedMyNotes = true, includeRenotedMyNotesErr] = $.bool.optional().get(params.includeRenotedMyNotes);
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if (includeRenotedMyNotesErr) throw 'invalid includeRenotedMyNotes param';
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// Get 'mediaOnly' parameter
const [mediaOnly, mediaOnlyErr] = $.bool.optional().get(params.mediaOnly);
if (mediaOnlyErr) throw 'invalid mediaOnly param';
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const [followings, mutedUserIds] = await Promise.all([
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// フォローを取得
// Fetch following
getFriends(user._id),
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// ミュートしているユーザーを取得
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Mute.find({
muterId: user._id
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}).then(ms => ms.map(m => m.muteeId))
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]);
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//#region Construct query
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const sort = {
_id: -1
};
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const followQuery = followings.map(f => f.stalk ? {
userId: f.id
} : {
userId: f.id,
// ストーキングしてないならリプライは含めない(ただし投稿者自身の投稿へのリプライ、自分の投稿へのリプライ、自分のリプライは含める)
$or: [{
// リプライでない
replyId: null
}, { // または
// リプライだが返信先が投稿者自身の投稿
$expr: {
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$eq: ['$_reply.userId', '$userId']
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}
}, { // または
// リプライだが返信先が自分(フォロワー)の投稿
'_reply.userId': user._id
}, { // または
// 自分(フォロワー)が送信したリプライ
userId: user._id
}]
});
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const query = {
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$and: [{
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// フォローしている人の投稿
$or: followQuery,
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// mute
userId: {
$nin: mutedUserIds
},
'_reply.userId': {
$nin: mutedUserIds
},
'_renote.userId': {
$nin: mutedUserIds
},
}]
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} as any;
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// MongoDBではトップレベルで否定ができないため、De Morganの法則を利用してクエリします。
// つまり、「『自分の投稿かつRenote』ではない」を「『自分の投稿ではない』または『Renoteではない』」と表現します。
// for details: https://en.wikipedia.org/wiki/De_Morgan%27s_laws
if (includeMyRenotes === false) {
query.$and.push({
$or: [{
userId: { $ne: user._id }
}, {
renoteId: null
}, {
text: { $ne: null }
}, {
mediaIds: { $ne: [] }
}, {
poll: { $ne: null }
}]
});
}
if (includeRenotedMyNotes === false) {
query.$and.push({
$or: [{
'_renote.userId': { $ne: user._id }
}, {
renoteId: null
}, {
text: { $ne: null }
}, {
mediaIds: { $ne: [] }
}, {
poll: { $ne: null }
}]
});
}
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if (mediaOnly) {
query.$and.push({
mediaIds: { $exists: true, $ne: [] }
});
}
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if (sinceId) {
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sort._id = 1;
query._id = {
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$gt: sinceId
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};
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} else if (untilId) {
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query._id = {
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$lt: untilId
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};
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} else if (sinceDate) {
sort._id = 1;
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query.createdAt = {
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$gt: new Date(sinceDate)
};
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} else if (untilDate) {
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query.createdAt = {
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$lt: new Date(untilDate)
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};
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}
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//#endregion
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// Issue query
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const timeline = await Note
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.find(query, {
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limit: limit,
sort: sort
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});
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// Serialize
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return await Promise.all(timeline.map(note => pack(note, user)));
};