mirror of
https://github.com/nodemailer/wildduck.git
synced 2024-09-20 23:36:15 +08:00
454 lines
19 KiB
JavaScript
454 lines
19 KiB
JavaScript
'use strict';
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const config = require('wild-config');
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const imapTools = require('../../imap-core/lib/imap-tools');
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const db = require('../db');
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const tools = require('../tools');
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const consts = require('../consts');
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const base32 = require('base32.js');
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const crypto = require('crypto');
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// STORE / UID STORE, updates flags for selected UIDs
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module.exports = server => (mailbox, update, session, callback) => {
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server.logger.debug(
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{
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tnx: 'store',
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cid: session.id
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},
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'[%s] Updating messages in "%s"',
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session.id,
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mailbox
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);
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db.database.collection('mailboxes').findOne(
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{
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_id: mailbox
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},
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(err, mailboxData) => {
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if (err) {
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return callback(err);
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}
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if (!mailboxData) {
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return callback(null, 'NONEXISTENT');
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}
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let unseenChange = update.value.includes('\\Seen');
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let modified = [];
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let newModseq = false;
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let getModseq = next => {
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if (newModseq) {
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return next(null, newModseq);
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}
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db.database.collection('mailboxes').findOneAndUpdate(
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{ _id: mailboxData._id },
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{
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$inc: {
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modifyIndex: 1
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}
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},
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{
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returnOriginal: false
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},
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(err, item) => {
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if (err) {
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return next(err);
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}
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newModseq = item && item.value && item.value.modifyIndex;
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next(null, newModseq);
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}
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);
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};
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let query = {
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mailbox
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};
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let queryAll = false;
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if (update.messages.length !== session.selected.uidList.length) {
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// do not use uid selector for 1:*
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query.uid = tools.checkRangeQuery(update.messages);
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} else {
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// 1:*
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queryAll = true;
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// uid is part of the sharding key so we need it somehow represented in the query
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query.uid = {
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$gt: 0,
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$lt: mailboxData.uidNext
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};
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}
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let condstoreEnabled = !!session.selected.condstoreEnabled;
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let cursor = db.database
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.collection('messages')
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.find(query)
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.project({
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_id: true,
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uid: true,
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flags: true,
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modseq: true
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})
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.sort([['uid', 1]]);
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let shouldExpunge = false;
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let updateEntries = [];
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let notifyEntries = [];
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let done = (...args) => {
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if (updateEntries.length) {
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return db.database.collection('messages').bulkWrite(
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updateEntries,
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{
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ordered: false,
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w: 1
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},
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() => {
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updateEntries = [];
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server.notifier.addEntries(mailboxData, notifyEntries, () => {
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notifyEntries = [];
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server.notifier.fire(session.user.id);
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if (args[0]) {
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// first argument is an error
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return callback(...args);
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} else {
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if (config.imap.autoExpunge && shouldExpunge) {
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// shcedule EXPUNGE command for current folder
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let expungeOptions = {
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// create new temporary session so it would not mix with the active one
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id: 'auto.' + base32.encode(crypto.randomBytes(10)).toLowerCase(),
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user: {
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id: session.user.id,
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username: session.user.username
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}
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};
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setImmediate(() => {
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server.onExpunge(mailbox, { silent: true }, expungeOptions, () => false);
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});
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}
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updateMailboxFlags(mailboxData, update, () => callback(...args));
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}
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});
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}
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);
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}
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server.notifier.fire(session.user.id);
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if (args[0]) {
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// first argument is an error
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return callback(...args);
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} else {
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updateMailboxFlags(mailboxData, update, () => callback(...args));
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}
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};
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// We have to process all messages one by one instead of just calling an update
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// for all messages as we need to know which messages were exactly modified,
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// otherwise we can't send flag update notifications and modify modseq values
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let processNext = () => {
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cursor.next((err, message) => {
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if (err) {
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return done(err);
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}
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if (!message) {
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return cursor.close(() => done(null, true, modified));
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}
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if (queryAll && !session.selected.uidList.includes(message.uid)) {
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// skip processing messages that we do not know about yet
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return setImmediate(processNext);
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}
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if (update.unchangedSince && message.modseq > update.unchangedSince) {
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modified.push(message.uid);
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return setImmediate(processNext);
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}
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let flagsupdate = false; // query object for updates
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let updated = false;
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let existingFlags = message.flags.map(flag => flag.toLowerCase().trim());
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switch (update.action) {
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case 'set':
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// check if update set matches current or is different
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if (
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// if length does not match
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existingFlags.length !== update.value.length ||
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// or a new flag was found
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update.value.filter(flag => !existingFlags.includes(flag.toLowerCase().trim())).length
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) {
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updated = true;
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}
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message.flags = [].concat(update.value);
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// set flags
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if (updated) {
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flagsupdate = {
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$set: {
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flags: message.flags,
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unseen: !message.flags.includes('\\Seen'),
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flagged: message.flags.includes('\\Flagged'),
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undeleted: !message.flags.includes('\\Deleted'),
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draft: message.flags.includes('\\Draft')
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}
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};
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if (message.flags.includes('\\Deleted')) {
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shouldExpunge = true;
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}
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if (!['\\Junk', '\\Trash'].includes(mailboxData.specialUse) && !message.flags.includes('\\Deleted')) {
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flagsupdate.$set.searchable = true;
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} else {
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flagsupdate.$unset = {
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searchable: ''
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};
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}
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}
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break;
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case 'add': {
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let newFlags = [];
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message.flags = message.flags.concat(
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update.value.filter(flag => {
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if (!existingFlags.includes(flag.toLowerCase().trim())) {
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updated = true;
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newFlags.push(flag);
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return true;
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}
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return false;
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})
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);
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// add flags
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if (updated) {
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flagsupdate = {
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$addToSet: {
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flags: {
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$each: newFlags
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}
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}
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};
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if (
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newFlags.includes('\\Seen') ||
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newFlags.includes('\\Flagged') ||
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newFlags.includes('\\Deleted') ||
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newFlags.includes('\\Draft')
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) {
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flagsupdate.$set = {};
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if (newFlags.includes('\\Seen')) {
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flagsupdate.$set = {
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unseen: false
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};
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}
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if (newFlags.includes('\\Flagged')) {
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flagsupdate.$set = {
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flagged: true
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};
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}
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if (newFlags.includes('\\Deleted')) {
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shouldExpunge = true;
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flagsupdate.$set = {
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undeleted: false
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};
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flagsupdate.$unset = {
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searchable: ''
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};
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}
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if (newFlags.includes('\\Draft')) {
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flagsupdate.$set = {
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draft: true
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};
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}
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}
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}
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break;
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}
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case 'remove': {
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// We need to use the case of existing flags when removing
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let oldFlags = [];
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let flagsUpdates = update.value.map(flag => flag.toLowerCase().trim());
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message.flags = message.flags.filter(flag => {
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if (!flagsUpdates.includes(flag.toLowerCase().trim())) {
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return true;
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}
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oldFlags.push(flag);
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updated = true;
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return false;
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});
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// remove flags
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if (updated) {
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flagsupdate = {
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$pull: {
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flags: {
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$in: oldFlags
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}
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}
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};
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if (
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oldFlags.includes('\\Seen') ||
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oldFlags.includes('\\Flagged') ||
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oldFlags.includes('\\Deleted') ||
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oldFlags.includes('\\Draft')
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) {
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flagsupdate.$set = {};
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if (oldFlags.includes('\\Seen')) {
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flagsupdate.$set = {
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unseen: true
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};
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}
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if (oldFlags.includes('\\Flagged')) {
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flagsupdate.$set = {
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flagged: false
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};
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}
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if (oldFlags.includes('\\Deleted')) {
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flagsupdate.$set = {
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undeleted: true
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};
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if (!['\\Junk', '\\Trash'].includes(mailboxData.specialUse)) {
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flagsupdate.$set.searchable = true;
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}
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}
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if (oldFlags.includes('\\Draft')) {
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flagsupdate.$set = {
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draft: false
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};
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}
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}
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}
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break;
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}
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}
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if (updated) {
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getModseq((err, modseq) => {
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if (err) {
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return cursor.close(() => done(err));
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}
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if (!update.silent || condstoreEnabled) {
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// print updated state of the message
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session.writeStream.write(
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session.formatResponse('FETCH', message.uid, {
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uid: update.isUid ? message.uid : false,
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flags: message.flags,
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modseq: condstoreEnabled ? modseq : false
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})
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);
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}
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if (!flagsupdate.$set) {
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flagsupdate.$set = {};
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}
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flagsupdate.$set.modseq = modseq;
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updateEntries.push({
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updateOne: {
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filter: {
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_id: message._id,
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// include shard key data as well
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mailbox: mailboxData._id,
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uid: message.uid,
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modseq: {
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$lt: modseq
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}
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},
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update: flagsupdate
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}
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});
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notifyEntries.push({
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command: 'FETCH',
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ignore: session.id,
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uid: message.uid,
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flags: message.flags,
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message: message._id,
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modseq,
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unseenChange
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});
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if (updateEntries.length >= consts.BULK_BATCH_SIZE) {
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return db.database.collection('messages').bulkWrite(
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updateEntries,
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{
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ordered: false,
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w: 1
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},
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err => {
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updateEntries = [];
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if (err) {
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return cursor.close(() => done(err));
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}
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server.notifier.addEntries(mailboxData, notifyEntries, () => {
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notifyEntries = [];
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server.notifier.fire(session.user.id);
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return setImmediate(processNext);
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});
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}
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);
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} else {
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return setImmediate(processNext);
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}
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});
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} else {
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return setImmediate(processNext);
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}
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});
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};
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return setImmediate(processNext);
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}
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);
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};
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function updateMailboxFlags(mailbox, update, callback) {
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if (update.action === 'remove') {
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// we didn't add any new flags, so there's nothing to update
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return callback();
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}
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let mailboxFlags = imapTools.systemFlags.concat(mailbox.flags || []).map(flag => flag.trim().toLowerCase());
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let newFlags = [];
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// find flags that are not listed with mailbox
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update.value.forEach(flag => {
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// limit mailbox flags by 100
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if (mailboxFlags.length + newFlags.length >= 100) {
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return;
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}
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// if mailbox does not have such flag, then add it
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if (!mailboxFlags.includes(flag.toLowerCase().trim())) {
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newFlags.push(flag);
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}
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});
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// nothing new found
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if (!newFlags.length) {
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return callback();
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}
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// found some new flags not yet set for mailbox
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// FIXME: Should we send unsolicited FLAGS and PERMANENTFLAGS notifications? Probably not
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return db.database.collection('mailboxes').findOneAndUpdate(
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{
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_id: mailbox._id
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},
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{
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$addToSet: {
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flags: {
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$each: newFlags
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}
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}
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},
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{},
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callback
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);
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}
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