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110 lines
3.7 KiB
110 lines
3.7 KiB
'use strict';
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const { ObjectId } = require(__dirname+'/../db/db.js')
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, allowedArrays = new Set(['checkednews', 'checkedposts', 'globalcheckedposts', 'checkedbans', 'checkedbanners']) //only these can be arrays, since express bodyparser will output arrays
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, trimFields = ['tags', 'uri', 'moderators', 'filters', 'announcement', 'description', 'message',
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'name', 'subject', 'email', 'password', 'default_name', 'report_reason', 'ban_reason'] //trim if we dont want filed with whitespace
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, numberFields = ['filter_mode', 'captcha_mode', 'tph_trigger', 'tph_trigger_action', 'reply_limit',
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'max_files', 'thread_limit', 'thread', 'min_thread_message_length', 'min_reply_message_length'] //convert these to numbers before they hit our routes
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, banDurationRegex = /^(?<year>[\d]+y)?(?<month>[\d]+m)?(?<week>[\d]+w)?(?<day>[\d]+d)?(?<hour>[\d]+h)?$/
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, msTime = require(__dirname+'/mstime.js')
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module.exports = (req, res, next) => {
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const bodyfields = Object.keys(req.body);
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for (let i = 0; i < bodyfields.length; i++) {
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const key = bodyfields[i];
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const val = req.body[key];
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/*
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bodyparser can form arrays e.g. for multiple files, but we only want arrays in fields we
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expect, to prevent issues when validating/using them later on.
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*/
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if (!allowedArrays.has(key) && Array.isArray(val)) {
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return res.status(400).render('message', {
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'title': 'Bad request',
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'message': 'Malformed input'
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});
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}
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}
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for (let i = 0; i < trimFields.length; i++) {
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const field = trimFields[i];
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if (req.body[field]) {
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//trimEnd() because trailing whitespace doesnt affect how a post appear and if it is all whitespace, trimEnd will get it all anyway
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req.body[field] = req.body[field].trimEnd();
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}
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}
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for (let i = 0; i < numberFields.length; i++) {
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const field = numberFields[i];
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if (req.body[field]) {
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const num = parseInt(req.body[field]);
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if (Number.isSafeInteger(num)) {
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req.body[field] = num;
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} else {
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req.body[field] = null;
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}
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}
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}
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//convert checked reports to number
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if (req.body.checkedposts) {
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req.body.checkedposts = req.body.checkedposts.map(Number);
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}
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//convert checked global reports to mongoid
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if (req.body.globalcheckedposts) {
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req.body.globalcheckedposts = req.body.globalcheckedposts.map(ObjectId)
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}
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if (req.body.checkednews) {
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req.body.checkednews = req.body.checkednews.map(ObjectId)
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}
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//convert checked bans to mongoid
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if (req.body.checkedbans) {
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req.body.checkedbans = req.body.checkedbans.map(ObjectId)
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}
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//ban duration convert to ban time in ms
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if (req.body.ban_duration) {
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const matches = req.body.ban_duration.match(banDurationRegex);
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if (matches && matches.groups) {
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const groups = matches.groups;
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let banDuration = 0;
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const groupKeys = Object.keys(groups);
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for (let i = 0; i < groupKeys.length; i++) {
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const key = groupKeys[i];
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if (!groups[key]) {
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continue;
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}
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const mult = +groups[key].substring(0,groups[key].length-1); //remove the d, m, y, etc from end of the value
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if (Number.isSafeInteger(mult) //if the multiplier is safe int
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&& Number.isSafeInteger(mult*msTime[key]) //and multiplying it is safe int
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&& Number.isSafeInteger((mult*msTime[key])+banDuration)) { //and adding it to the total is safe
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banDuration += mult*msTime[key];
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}
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}
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req.body.ban_duration = banDuration;
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} else {
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req.body.ban_duration = null;
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}
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}
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//thread id
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if (req.params.id) {
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req.params.id = +req.params.id;
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}
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//moglog date
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if (req.params.date) {
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const dateString = req.params.date.replace(/-/g, '/');
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const date = new Date(dateString);
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if (date !== 'Invalid Date') {
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res.locals.date = date;
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}
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}
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//board page
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if (req.params.page) {
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req.params.page = req.params.page === 'index' ? 'index' : +req.params.page;
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}
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next();
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}
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