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577 lines
21 KiB
577 lines
21 KiB
'use strict';
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const path = require('path')
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, { countryNamesMap } = require('../../helpers/countries.js')
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, { createHash, randomBytes } = require('crypto')
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, randomBytesAsync = require('util').promisify(randomBytes)
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, { remove, pathExists } = require('fs-extra')
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, uploadDirectory = require(__dirname+'/../../helpers/files/uploadDirectory.js')
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, Mongo = require(__dirname+'/../../db/db.js')
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, Socketio = require(__dirname+'/../../socketio.js')
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, { Stats, Posts, Boards, Files, Bans } = require(__dirname+'/../../db/')
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, cache = require(__dirname+'/../../redis.js')
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, nameHandler = require(__dirname+'/../../helpers/posting/name.js')
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, messageHandler = require(__dirname+'/../../helpers/posting/message.js')
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, moveUpload = require(__dirname+'/../../helpers/files/moveupload.js')
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, mimeTypes = require(__dirname+'/../../helpers/files/mimetypes.js')
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, imageThumbnail = require(__dirname+'/../../helpers/files/imagethumbnail.js')
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, imageIdentify = require(__dirname+'/../../helpers/files/imageidentify.js')
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, videoThumbnail = require(__dirname+'/../../helpers/files/videothumbnail.js')
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, ffprobe = require(__dirname+'/../../helpers/files/ffprobe.js')
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, formatSize = require(__dirname+'/../../helpers/files/formatsize.js')
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, deleteTempFiles = require(__dirname+'/../../helpers/files/deletetempfiles.js')
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, fixGifs = require(__dirname+'/../../helpers/files/fixgifs.js')
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, timeUtils = require(__dirname+'/../../helpers/timeutils.js')
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, deletePosts = require(__dirname+'/deletepost.js')
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, spamCheck = require(__dirname+'/../../helpers/checks/spamcheck.js')
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, { countryCodeHeader, thumbSize, thumbExtension, postPasswordSecret, strictFiltering } = require(__dirname+'/../../configs/main.js')
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, buildQueue = require(__dirname+'/../../queue.js')
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, dynamicResponse = require(__dirname+'/../../helpers/dynamic.js')
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, { buildThread } = require(__dirname+'/../../helpers/tasks.js');
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module.exports = async (req, res, next) => {
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//spam/flood check
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const flood = await spamCheck(req, res);
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if (flood) {
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deleteTempFiles(req).catch(e => console.error);
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return dynamicResponse(req, res, 429, 'message', {
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'title': 'Flood detected',
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'message': 'Please wait before making another post, or a post similar to another user',
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'redirect': `/${req.params.board}${req.body.thread ? '/thread/' + req.body.thread + '.html' : ''}`
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});
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}
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// check if this is responding to an existing thread
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let redirect = `/${req.params.board}/`
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let salt = null;
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let thread = null;
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const { filterBanDuration, filterMode, filters, blockedCountries, resetTrigger,
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maxFiles, sageOnlyEmail, forceAnon, replyLimit, disableReplySubject,
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threadLimit, ids, userPostSpoiler, pphTrigger, tphTrigger, triggerAction,
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captchaMode, lockMode, allowedFileTypes, flags } = res.locals.board.settings;
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if (flags === true
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&& res.locals.permLevel >= 4
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&& req.headers[countryCodeHeader]
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&& blockedCountries.includes(req.headers[countryCodeHeader])) {
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return dynamicResponse(req, res, 403, 'message', {
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'title': 'Forbidden',
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'message': `Your country code ${req.headers[countryCodeHeader]} is not allowed to post on this board`,
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'redirect': redirect
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});
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}
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if ((lockMode === 2 || (lockMode === 1 && !req.body.thread)) //if board lock, or thread lock and its a new thread
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&& res.locals.permLevel >= 4) { //and not staff
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await deleteTempFiles(req).catch(e => console.error);
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return dynamicResponse(req, res, 400, 'message', {
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'title': 'Bad request',
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'message': lockMode === 1 ? 'Thread creation locked' : 'Board locked',
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'redirect': redirect
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});
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}
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if (req.body.thread) {
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thread = await Posts.getPost(req.params.board, req.body.thread, true);
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if (!thread || thread.thread != null) {
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await deleteTempFiles(req).catch(e => console.error);
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return dynamicResponse(req, res, 400, 'message', {
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'title': 'Bad request',
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'message': 'Thread does not exist',
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'redirect': redirect
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});
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}
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salt = thread.salt;
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redirect += `thread/${req.body.thread}.html`
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if (thread.locked && res.locals.permLevel >= 4) {
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await deleteTempFiles(req).catch(e => console.error);
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return dynamicResponse(req, res, 400, 'message', {
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'title': 'Bad request',
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'message': 'Thread Locked',
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'redirect': redirect
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});
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}
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if (thread.replyposts >= replyLimit && !thread.cyclic) { //reply limit
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await deleteTempFiles(req).catch(e => console.error);
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return dynamicResponse(req, res, 400, 'message', {
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'title': 'Bad request',
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'message': 'Thread reached reply limit',
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'redirect': redirect
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});
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}
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}
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//filters
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if (res.locals.permLevel > 1) { //global staff bypass filters
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const globalSettings = await cache.get('globalsettings');
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let hitGlobalFilter = false
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, hitLocalFilter = false
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, ban;
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let concatContents = `|${req.body.name}|${req.body.message}|${req.body.subject}|${req.body.email}|${res.locals.numFiles > 0 ? req.files.file.map(f => f.name).join('|') : ''}`.toLowerCase();
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let allContents = concatContents;
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if (strictFiltering || res.locals.board.settings.strictFiltering) { //strict filtering adds a few transformations of the text to try and match filters when sers use techniques like zalgo, ZWS, markdown, multi-line, etc.
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allContents += concatContents.normalize('NFD').replace(/[\u0300-\u036f]/g, ''); //removing diacritics
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allContents += concatContents.replace(/[\u200B-\u200D\uFEFF]/g, ''); //removing ZWS
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allContents += concatContents.replace(/[^a-zA-Z0-9.-]+/gm, ''); //removing anything thats not alphamnumeric or . and -
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}
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//global filters
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if (globalSettings && globalSettings.filters.length > 0 && globalSettings.filterMode > 0) {
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hitGlobalFilter = globalSettings.filters.some(filter => { return allContents.includes(filter.toLowerCase()) });
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}
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//board-specific filters (doesnt use strict filtering)
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if (!hitGlobalFilter && res.locals.permLevel >= 4 && filterMode > 0 && filters && filters.length > 0) {
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const localFilterContents = res.locals.board.settings.strictFiltering ? allContents : concatContents;
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hitLocalFilter = filters.some(filter => { return localFilterContents.includes(filter.toLowerCase()) });
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}
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if (hitGlobalFilter || hitLocalFilter) {
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await deleteTempFiles(req).catch(e => console.error);
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const useFilterMode = hitGlobalFilter ? globalSettings.filterMode : filterMode; //global override local filter
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if (useFilterMode === 1) {
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return dynamicResponse(req, res, 400, 'message', {
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'title': 'Bad request',
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'message': 'Your post was blocked by a word filter',
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'redirect': redirect
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});
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} else { //otherwise filter mode must be 2
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const useFilterBanDuration = hitGlobalFilter ? globalSettings.filterBanDuration : filterBanDuration;
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const banBoard = hitGlobalFilter ? null : res.locals.board._id;
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const banDate = new Date();
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const banExpiry = new Date(useFilterBanDuration + banDate.getTime());
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const ban = {
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'ip': {
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'single': res.locals.ip.single,
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'raw': res.locals.ip.raw,
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},
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'type': 'single',
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'reason': `${hitGlobalFilter ? 'global ' :''}word filter auto ban`,
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'board': banBoard,
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'posts': null,
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'issuer': 'system', //what should i call this
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'date': banDate,
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'expireAt': banExpiry,
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'allowAppeal': true, //should i make this configurable if appealable?
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'seen': false
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};
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const insertedResult = await Bans.insertOne(ban);
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ban._id = insertedResult.insertedId;
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return res.status(403).render('ban', {
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bans: [ban]
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});
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}
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}
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}
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let files = [];
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// if we got a file
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if (res.locals.numFiles > 0) {
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// check all mime types befoer we try saving anything
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for (let i = 0; i < res.locals.numFiles; i++) {
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if (!mimeTypes.allowed(req.files.file[i].mimetype, allowedFileTypes)) {
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await deleteTempFiles(req).catch(e => console.error);
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return dynamicResponse(req, res, 400, 'message', {
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'title': 'Bad request',
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'message': `Mime type "${req.files.file[i].mimetype}" for "${req.files.file[i].name}" not allowed`,
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'redirect': redirect
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});
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}
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}
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// then upload, thumb, get metadata, etc.
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for (let i = 0; i < res.locals.numFiles; i++) {
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const file = req.files.file[i];
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let extension = path.extname(file.name) || file.name.substring(file.name.indexOf('.'));
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file.filename = file.sha256 + extension;
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//get metadata
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let processedFile = {
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spoiler: (res.locals.permLevel >= 4 || userPostSpoiler) && req.body.spoiler && req.body.spoiler.includes(file.name),
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hash: file.sha256,
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filename: file.filename, //could probably remove since we have hash and extension
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originalFilename: req.body.strip_filename && req.body.strip_filename.includes(file.name) ? file.filename : file.name,
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mimetype: file.mimetype,
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size: file.size,
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extension,
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};
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//type and subtype
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const [type, subtype] = processedFile.mimetype.split('/');
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if (type !== 'audio') { //audio doesnt need thumb
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processedFile.thumbextension = thumbExtension;
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}
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let imageData;
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if (type === 'image') {
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///detect images with opacity for PNG thumbnails, set thumbextension before increment
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imageData = await imageIdentify(req.files.file[i].tempFilePath, null, true);
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if (imageData['Channel Statistics'] && imageData['Channel Statistics']['Opacity']) {//does this depend on GM version or anything?
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const opacityMaximum = imageData['Channel Statistics']['Opacity']['Maximum'];
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if (opacityMaximum !== '0.00 (0.0000)') {
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processedFile.thumbextension = '.png';
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}
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}
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}
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//increment file count
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await Files.increment(processedFile);
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req.files.file[i].inced = true;
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//check if already exists
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const existsFull = await pathExists(`${uploadDirectory}/file/${processedFile.filename}`);
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processedFile.sizeString = formatSize(processedFile.size)
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if (mimeTypes.other.has(processedFile.mimetype)) {
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//"other" mimes from config, overrides main type to avoid codec issues in browser or ffmpeg for unsupported filetypes
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processedFile.hasThumb = false;
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processedFile.attachment = true;
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if (!existsFull) {
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await moveUpload(file, processedFile.filename, 'file');
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}
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} else {
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switch (type) {
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case 'image': {
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const existsThumb = await pathExists(`${uploadDirectory}/file/thumb-${processedFile.hash}${processedFile.thumbextension}`);
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processedFile.geometry = imageData.size ;
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processedFile.geometryString = imageData.Geometry;
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processedFile.hasThumb = !(mimeTypes.allowed(file.mimetype, {image: true})
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&& subtype !== 'png'
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&& processedFile.geometry.height <= thumbSize
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&& processedFile.geometry.width <= thumbSize);
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if (!existsFull) {
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await moveUpload(file, processedFile.filename, 'file');
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}
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if (!existsThumb && processedFile.hasThumb) {
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await imageThumbnail(processedFile);
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}
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processedFile = fixGifs(processedFile);
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break;
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}
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case 'video': {
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const existsThumb = await pathExists(`${uploadDirectory}/file/thumb-${processedFile.hash}${processedFile.thumbextension}`);
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//video metadata
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const videoData = await ffprobe(req.files.file[i].tempFilePath, null, true);
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videoData.streams = videoData.streams.filter(stream => stream.width != null); //filter to only video streams or something with a resolution
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if (videoData.streams.length <= 0) {
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//corrupt, or audio only?
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await deleteTempFiles(req).catch(e => console.error);
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return dynamicResponse(req, res, 400, 'message', {
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'title': 'Bad request',
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'message': 'Audio only video file not supported',
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'redirect': redirect
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});
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}
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processedFile.duration = videoData.format.duration;
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processedFile.durationString = timeUtils.durationString(videoData.format.duration*1000);
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processedFile.geometry = {width: videoData.streams[0].coded_width, height: videoData.streams[0].coded_height};
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processedFile.geometryString = `${processedFile.geometry.width}x${processedFile.geometry.height}`
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processedFile.hasThumb = true;
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if (!existsFull) {
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await moveUpload(file, processedFile.filename, 'file');
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}
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if (!existsThumb) {
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await videoThumbnail(processedFile, processedFile.geometry, videoData.streams[0].nb_frames);
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}
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break;
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}
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case 'audio': {
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//audio metadata
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const audioData = await ffprobe(req.files.file[i].tempFilePath, null, true);
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processedFile.duration = audioData.format.duration;
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processedFile.durationString = timeUtils.durationString(audioData.format.duration*1000);
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processedFile.hasThumb = false;
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if (!existsFull) {
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await moveUpload(file, processedFile.filename, 'file');
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}
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break;
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}
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default:
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throw new Error(`invalid file mime type: ${processedFile}`);
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}
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}
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if (processedFile.hasThumb === true) {
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if (processedFile.geometry.width < thumbSize && processedFile.geometry.height < thumbSize) {
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//dont scale up thumbnail for smaller images
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processedFile.geometry.thumbwidth = processedFile.geometry.width;
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processedFile.geometry.thumbheight = processedFile.geometry.height;
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} else {
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const ratio = Math.min(thumbSize/processedFile.geometry.width, thumbSize/processedFile.geometry.height);
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processedFile.geometry.thumbwidth = Math.floor(Math.min(processedFile.geometry.width*ratio, thumbSize));
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processedFile.geometry.thumbheight = Math.floor(Math.min(processedFile.geometry.height*ratio, thumbSize));
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}
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}
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//delete the temp file
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await remove(file.tempFilePath);
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files.push(processedFile);
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}
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}
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// because express middleware is autistic i need to do this
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deleteTempFiles(req).catch(e => console.error);
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let userId = null;
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if (!salt) {
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//thread salt for IDs
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salt = (await randomBytesAsync(128)).toString('base64');
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}
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if (ids === true) {
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const fullUserIdHash = createHash('sha256').update(salt + res.locals.ip.raw).digest('hex');
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userId = fullUserIdHash.substring(fullUserIdHash.length-6);
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}
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let country = null;
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if (flags === true) {
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const code = req.headers[countryCodeHeader];
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country = {
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code,
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'name': countryNamesMap[code]
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}
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}
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let password = null;
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if (req.body.postpassword) {
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password = createHash('sha256').update(postPasswordSecret + req.body.postpassword).digest('base64');
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}
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//spoiler files only if board settings allow
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const spoiler = (res.locals.permLevel >= 4 || userPostSpoiler) && req.body.spoiler_all ? true : false;
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//forceanon hide reply subjects so cant be used as name for replies
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//forceanon and sageonlyemail only allow sage email
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let subject = (res.locals.permLevel >= 4 && req.body.thread && (disableReplySubject || forceAnon)) ? null : req.body.subject;
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let email = (res.locals.permLevel < 4 || (!forceAnon && !sageOnlyEmail) || req.body.email === 'sage') ? req.body.email : null;
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//get name, trip and cap
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const { name, tripcode, capcode } = await nameHandler(req.body.name, res.locals.permLevel, res.locals.board.settings);
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//get message, quotes and crossquote array
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const { message, quotes, crossquotes } = await messageHandler(req.body.message, req.params.board, req.body.thread);
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//build post data for db
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const data = {
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'date': new Date(),
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name,
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country,
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'board': req.params.board,
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tripcode,
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capcode,
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subject,
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'message': message || null,
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'nomarkup': req.body.message || null,
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'thread': req.body.thread || null,
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password,
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email,
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spoiler,
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'banmessage': null,
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userId,
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'ip': res.locals.ip,
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files,
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'reports': [],
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'globalreports': [],
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quotes, //posts this post replies to
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crossquotes, //quotes to other threads in same board
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'backlinks': [], //posts replying to this post
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}
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if (!req.body.thread) {
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//if this is a thread, add thread specific properties
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Object.assign(data, {
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'replyposts': 0,
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'replyfiles': 0,
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//NOTE: these are numbers because we XOR them for toggling in action handler
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'sticky': Mongo.NumberInt(0),
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'locked': Mongo.NumberInt(0),
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'bumplocked': Mongo.NumberInt(0),
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'cyclic': Mongo.NumberInt(0),
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'salt': salt
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});
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}
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const postId = await Posts.insertOne(res.locals.board, data, thread);
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let enableCaptcha = false;
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if (triggerAction > 0 //if trigger is enabled
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&& (tphTrigger > 0 || pphTrigger > 0) //and has a threshold > 0
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&& ((triggerAction < 3 && captchaMode < triggerAction) //and its triggering captcha and captcha isnt on
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|| (triggerAction === 3 && lockMode < 1) //or triggering locking and board isnt locked
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|| (triggerAction === 4 && lockMode < 2))) {
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//read stats to check number threads in past hour
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const hourPosts = await Stats.getHourPosts(res.locals.board._id);
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if (hourPosts //if stats exist for this hour and its above either trigger
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&& (tphTrigger > 0 && hourPosts.tph >= tphTrigger)
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|| (pphTrigger > 0 && hourPosts.pph > pphTrigger)) {
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//update in memory for other stuff done e.g. rebuilds
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const update = {
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'$set': {
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'preTriggerMode': {
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lockMode,
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captchaMode
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}
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}
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};
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if (triggerAction < 3) {
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res.locals.board.settings.captchaMode = triggerAction;
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update['$set']['settings.captchaMode'] = triggerAction;
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enableCaptcha = true;
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} else if (triggerAction === 3) {
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res.locals.board.settings.lockMode = 1;
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update['$set']['settings.lockMode'] = 1;
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} else if (triggerAction === 4) {
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res.locals.board.settings.lockMode = 2;
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update['$set']['settings.lockMode'] = 2;
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}
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//set it in the db
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await Boards.updateOne(res.locals.board._id, update);
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if (resetTrigger) {
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//mark the board as being triggered so we can return it to old mode after on schedule
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await cache.sadd('triggered', res.locals.board._id);
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}
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}
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}
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//for cyclic threads, delete posts beyond bump limit
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if (thread && thread.cyclic && thread.replyposts > replyLimit) {
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const cyclicOverflowPosts = await Posts.db.find({
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'thread': data.thread,
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'board': req.params.board
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}).sort({
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'postId': -1,
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}).skip(replyLimit).toArray();
|
|
if (cyclicOverflowPosts.length > 0) {
|
|
await deletePosts(cyclicOverflowPosts, req.params.board);
|
|
const fileCount = cyclicOverflowPosts.reduce((acc, post) => {
|
|
return acc + (post.files ? post.files.length : 0);
|
|
}, 0);
|
|
//reduce amount counted in post by number of posts deleted
|
|
await Posts.db.updateOne({
|
|
'postId': thread.postId,
|
|
'board': res.locals.board._id
|
|
}, {
|
|
'$inc': { //negative increment
|
|
'replyposts': -cyclicOverflowPosts.length,
|
|
'replyfiles': -fileCount
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
const successRedirect = `/${req.params.board}/${req.path.endsWith('/modpost') ? 'manage/' : ''}thread/${req.body.thread || postId}.html#${postId}`;
|
|
|
|
const buildOptions = {
|
|
'threadId': data.thread || postId,
|
|
'board': res.locals.board
|
|
};
|
|
|
|
if (req.headers['x-using-live'] != null && data.thread) {
|
|
//defer build and post will come live
|
|
res.json({
|
|
'postId': postId,
|
|
'redirect': successRedirect
|
|
});
|
|
buildQueue.push({
|
|
'task': 'buildThread',
|
|
'options': buildOptions
|
|
});
|
|
} else {
|
|
//build immediately and refresh when built
|
|
await buildThread(buildOptions);
|
|
if (req.headers['x-using-xhr'] != null) {
|
|
res.json({
|
|
'postId': postId,
|
|
'redirect': successRedirect
|
|
});
|
|
} else {
|
|
res.redirect(successRedirect);
|
|
}
|
|
}
|
|
|
|
if (data.thread) {
|
|
//only emit for replies and with some omissions
|
|
const projectedPost = {
|
|
'date': data.date,
|
|
'name': data.name,
|
|
'country': data.country,
|
|
'board': req.params.board,
|
|
'tripcode': data.tripcode,
|
|
'capcode': data.capcode,
|
|
'subject': data.subject,
|
|
'message': data.message,
|
|
'nomarkup': data.nomarkup,
|
|
'thread': data.thread,
|
|
'postId': postId,
|
|
'email': data.email,
|
|
'spoiler': data.spoiler,
|
|
'banmessage': null,
|
|
'userId': data.userId,
|
|
'files': data.files,
|
|
'reports': [],
|
|
'globalreports': [],
|
|
'quotes': data.quotes,
|
|
'backlinks': [],
|
|
'replyposts': 0,
|
|
'replyfiles': 0,
|
|
'sticky': data.sticky,
|
|
'locked': data.locked,
|
|
'bumplocked': data.bumplocked,
|
|
'cyclic': data.cyclic,
|
|
}
|
|
Socketio.emitRoom(`${res.locals.board._id}-${data.thread}`, 'newPost', projectedPost);
|
|
}
|
|
|
|
//now add other pages to be built in background
|
|
if (enableCaptcha) {
|
|
if (res.locals.board.settings.captchaMode == 2) {
|
|
//only delete threads if all posts require threads, otherwise just build board pages for thread captcha
|
|
await remove(`${uploadDirectory}/html/${req.params.board}/thread/`); //not deleting json cos it doesnt need to be
|
|
}
|
|
const endPage = Math.ceil(threadLimit/10);
|
|
buildQueue.push({
|
|
'task': 'buildBoardMultiple',
|
|
'options': {
|
|
'board': res.locals.board,
|
|
'startpage': 1,
|
|
'endpage': endPage
|
|
}
|
|
});
|
|
} else if (data.thread) {
|
|
//refersh pages
|
|
const threadPage = await Posts.getThreadPage(req.params.board, thread);
|
|
if (data.email === 'sage' || thread.bumplocked) {
|
|
//refresh the page that the thread is on
|
|
buildQueue.push({
|
|
'task': 'buildBoard',
|
|
'options': {
|
|
'board': res.locals.board,
|
|
'page': threadPage
|
|
}
|
|
});
|
|
} else {
|
|
//if not saged, it will bump so we should refresh any pages above it as well
|
|
buildQueue.push({
|
|
'task': 'buildBoardMultiple',
|
|
'options': {
|
|
'board': res.locals.board,
|
|
'startpage': 1,
|
|
'endpage': threadPage
|
|
}
|
|
});
|
|
}
|
|
} else if (!data.thread) {
|
|
//new thread, prunes any old threads before rebuilds
|
|
const prunedThreads = await Posts.pruneThreads(res.locals.board);
|
|
if (prunedThreads.length > 0) {
|
|
await deletePosts(prunedThreads, req.params.board);
|
|
}
|
|
if (!enableCaptcha) {
|
|
const endPage = Math.ceil(threadLimit/10);
|
|
buildQueue.push({
|
|
'task': 'buildBoardMultiple',
|
|
'options': {
|
|
'board': res.locals.board,
|
|
'startpage': 1,
|
|
'endpage': endPage
|
|
}
|
|
});
|
|
}
|
|
}
|
|
|
|
//always rebuild catalog for post counts and ordering
|
|
buildQueue.push({
|
|
'task': 'buildCatalog',
|
|
'options': {
|
|
'board': res.locals.board,
|
|
}
|
|
});
|
|
|
|
}
|
|
|