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100 lines
3.1 KiB
JavaScript
100 lines
3.1 KiB
JavaScript
'use strict';
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const nconf = require('nconf');
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const db = require('../../database');
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const user = require('../../user');
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const topics = require('../../topics');
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const privileges = require('../../privileges');
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const { notes } = require('../../activitypub');
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// const helpers = require('../helpers');
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const pagination = require('../../pagination');
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const helpers = require('../helpers');
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const controller = module.exports;
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controller.get = async function (req, res, next) {
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const pid = await notes.resolveId(req.uid, req.query.resource);
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if (pid !== req.query.resource) {
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return helpers.redirect(res, `/topic/remote?resource=${pid}`, true);
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}
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const tid = await notes.assertTopic(req.uid, req.query.resource);
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let postIndex = await db.sortedSetRank(`tidRemote:${tid}:posts`, req.query.resource);
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const [
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userPrivileges,
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settings,
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// topicData,
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] = await Promise.all([
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privileges.topics.get(tid, req.uid),
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user.getSettings(req.uid),
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// topics.getTopicData(tid),
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]);
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const topicData = await topics.getTopicData(tid);
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topicData.category = {}; // todo
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let currentPage = parseInt(req.query.page, 10) || 1;
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const pageCount = Math.max(1, Math.ceil((topicData && topicData.postcount) / settings.postsPerPage));
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const invalidPagination = (settings.usePagination && (currentPage < 1 || currentPage > pageCount));
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if (
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!topicData ||
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userPrivileges.disabled ||
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invalidPagination// ||
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// (topicData.scheduled && !userPrivileges.view_scheduled)
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) {
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return next();
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}
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if (!req.query.page) {
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currentPage = calculatePageFromIndex(postIndex, settings);
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}
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if (settings.usePagination && req.query.page) {
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const top = ((currentPage - 1) * settings.postsPerPage) + 1;
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const bottom = top + settings.postsPerPage;
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if (!req.params.post_index || (postIndex < top || postIndex > bottom)) {
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postIndex = top;
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}
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}
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const { start, stop } = calculateStartStop(currentPage, postIndex, settings);
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topicData.posts = await notes.getTopicPosts(tid, req.uid, start, stop);
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await topics.calculatePostIndices(topicData.posts, start - 1);
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topicData.posts = await topics.addPostData(topicData.posts, req.uid);
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topicData.privileges = userPrivileges;
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await topics.increaseViewCount(req, tid);
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topicData.postIndex = postIndex;
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topicData.pagination = pagination.create(currentPage, pageCount, req.query);
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topicData.pagination.rel.forEach((rel) => {
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rel.href = `${nconf.get('url')}/topic/${topicData.slug}${rel.href}`;
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res.locals.linkTags.push(rel);
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});
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res.render('topic', topicData);
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};
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// todo: expose from topic controller?
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function calculatePageFromIndex(postIndex, settings) {
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return 1 + Math.floor((postIndex - 1) / settings.postsPerPage);
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}
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// todo: expose from topic controller?
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function calculateStartStop(page, postIndex, settings) {
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let startSkip = 0;
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if (!settings.usePagination) {
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if (postIndex > 1) {
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page = 1;
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}
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startSkip = Math.max(0, postIndex - Math.ceil(settings.postsPerPage / 2));
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}
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const start = ((page - 1) * settings.postsPerPage) + startSkip;
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const stop = start + settings.postsPerPage - 1;
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return { start: Math.max(0, start), stop: Math.max(0, stop) };
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}
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