算法评测平台前端。
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/*
* This file is part of SYZOJ.
*
* Copyright (c) 2016 Menci <huanghaorui301@gmail.com>
*
* SYZOJ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* SYZOJ is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with SYZOJ. If not, see <http://www.gnu.org/licenses/>.
*/
'use strict';
let Article = syzoj.model('article');
let ArticleComment = syzoj.model('article-comment');
let User = syzoj.model('user');
app.get('/discussion', async (req, res) => {
try {
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let paginate = syzoj.utils.paginate(await Article.count(), req.query.page, syzoj.config.page.discussion);
let articles = await Article.query(paginate, null, [['public_time', 'desc']]);
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for (let article of articles) await article.loadRelationships();
res.render('discussion', {
articles: articles,
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paginate: paginate
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});
} catch (e) {
syzoj.log(e);
res.render('error', {
err: e
});
}
});
app.get('/article/:id', async (req, res) => {
try {
let id = parseInt(req.params.id);
let article = await Article.fromID(id);
if (!article) throw new ErrorMessage('无此帖子。');
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await article.loadRelationships();
article.allowedEdit = await article.isAllowedEditBy(res.locals.user);
article.allowedComment = await article.isAllowedCommentBy(res.locals.user);
article.content = await syzoj.utils.markdown(article.content);
let where = { article_id: id };
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let paginate = syzoj.utils.paginate(await ArticleComment.count(where), req.query.page, syzoj.config.page.article_comment);
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let comments = await ArticleComment.query(paginate, where, [['public_time', 'asc']]);
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for (let comment of comments) {
comment.content = await syzoj.utils.markdown(comment.content);
comment.allowedEdit = await comment.isAllowedEditBy(res.locals.user);
await comment.loadRelationships();
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}
res.render('article', {
article: article,
comments: comments,
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paginate: paginate
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});
} catch (e) {
syzoj.log(e);
res.render('error', {
err: e
});
}
});
app.get('/article/:id/edit', async (req, res) => {
try {
if (!res.locals.user) throw new ErrorMessage('请登录后继续。', { '登录': syzoj.utils.makeUrl(['login'], { 'url': req.originalUrl }) });
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let id = parseInt(req.params.id);
let article = await Article.fromID(id);
if (!article) {
article = await Article.create();
article.id = 0;
article.allowedEdit = true;
} else {
article.allowedEdit = await article.isAllowedEditBy(res.locals.user);
}
res.render('article_edit', {
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article: article
});
} catch (e) {
syzoj.log(e);
res.render('error', {
err: e
});
}
});
app.post('/article/:id/edit', async (req, res) => {
try {
if (!res.locals.user) throw new ErrorMessage('请登录后继续。', { '登录': syzoj.utils.makeUrl(['login'], { 'url': req.originalUrl }) });
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let id = parseInt(req.params.id);
let article = await Article.fromID(id);
let time = syzoj.utils.getCurrentDate();
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if (!article) {
article = await Article.create();
article.user_id = res.locals.user.id;
article.public_time = article.sort_time = time;
} else {
if (!await article.isAllowedEditBy(res.locals.user)) throw new ErrorMessage('您没有权限进行此操作。');
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}
if (!req.body.title.trim()) throw new ErrorMessage('标题不能为空。');
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article.title = req.body.title;
article.content = req.body.content;
article.update_time = time;
await article.save();
res.redirect(syzoj.utils.makeUrl(['article', article.id]));
} catch (e) {
syzoj.log(e);
res.render('error', {
err: e
});
}
});
app.get('/article/:id/delete', async (req, res) => {
try {
if (!res.locals.user) throw new ErrorMessage('请登录后继续。', { '登录': syzoj.utils.makeUrl(['login'], { 'url': req.originalUrl }) });
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let id = parseInt(req.params.id);
let article = await Article.fromID(id);
if (!article) {
throw new ErrorMessage('无此帖子。');
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} else {
if (!await article.isAllowedEditBy(res.locals.user)) throw new ErrorMessage('您没有权限进行此操作。');
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}
await article.destroy();
res.redirect(syzoj.utils.makeUrl(['discussion']));
} catch (e) {
syzoj.log(e);
res.render('error', {
err: e
});
}
});
app.post('/article/:id/comment', async (req, res) => {
try {
if (!res.locals.user) throw new ErrorMessage('请登录后继续。', { '登录': syzoj.utils.makeUrl(['login'], { 'url': req.originalUrl }) });
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let id = parseInt(req.params.id);
let article = await Article.fromID(id);
if (!article) {
throw new ErrorMessage('无此帖子。');
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} else {
if (!await article.isAllowedCommentBy(res.locals.user)) throw new ErrorMessage('您没有权限进行此操作。');
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}
let comment = await ArticleComment.create({
content: req.body.comment,
article_id: id,
user_id: res.locals.user.id,
public_time: syzoj.utils.getCurrentDate()
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});
await comment.save();
res.redirect(syzoj.utils.makeUrl(['article', article.id]));
} catch (e) {
syzoj.log(e);
res.render('error', {
err: e
});
}
});
app.get('/article/:article_id/comment/:id/delete', async (req, res) => {
try {
if (!res.locals.user) throw new ErrorMessage('请登录后继续。', { '登录': syzoj.utils.makeUrl(['login'], { 'url': req.originalUrl }) });
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let id = parseInt(req.params.id);
let comment = await ArticleComment.fromID(id);
if (!comment) {
throw new ErrorMessage('无此评论。');
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} else {
if (!await comment.isAllowedEditBy(res.locals.user)) throw new ErrorMessage('您没有权限进行此操作。');
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}
await comment.destroy();
res.redirect(syzoj.utils.makeUrl(['article', comment.article_id]));
} catch (e) {
syzoj.log(e);
res.render('error', {
err: e
});
}
});