算法评测平台前端。
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const jwt = require('jsonwebtoken');
const url = require('url');
app.get('/api/v2/search/users/:keyword*?', async (req, res) => {
try {
let User = syzoj.model('user');
let keyword = req.params.keyword || '';
let conditions = [];
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const uid = parseInt(keyword) || 0;
if (uid != null && !isNaN(uid)) {
conditions.push({ id: uid });
}
if (keyword != null && String(keyword).length >= 2) {
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conditions.push({ username: TypeORM.Like(`%${req.params.keyword}%`) });
}
if (conditions.length === 0) {
res.send({ success: true, results: [] });
} else {
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let users = await User.find({
where: conditions,
order: {
username: 'ASC'
}
});
let result = [];
result = users.map(x => ({ name: `${x.username}`, value: x.id, url: syzoj.utils.makeUrl(['user', x.id]) }));
res.send({ success: true, results: result });
}
} catch (e) {
syzoj.log(e);
res.send({ success: false });
}
});
app.get('/api/v2/search/problems/:keyword*?', async (req, res) => {
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try {
let Problem = syzoj.model('problem');
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let keyword = req.params.keyword || '';
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let problems = await Problem.find({
where: {
title: TypeORM.Like(`%${req.params.keyword}%`)
},
order: {
id: 'ASC'
}
});
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let result = [];
let id = parseInt(keyword);
if (id) {
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let problemById = await Problem.findById(parseInt(keyword));
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if (problemById && await problemById.isAllowedUseBy(res.locals.user)) {
result.push(problemById);
}
}
await problems.forEachAsync(async problem => {
if (await problem.isAllowedUseBy(res.locals.user) && result.length < syzoj.config.page.edit_contest_problem_list && problem.id !== id) {
result.push(problem);
}
});
result = result.map(x => ({ name: `#${x.id}. ${x.title}`, value: x.id, url: syzoj.utils.makeUrl(['problem', x.id]) }));
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res.send({ success: true, results: result });
} catch (e) {
syzoj.log(e);
res.send({ success: false });
}
});
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app.get('/api/v2/search/tags/:keyword*?', async (req, res) => {
try {
let Problem = syzoj.model('problem');
let ProblemTag = syzoj.model('problem_tag');
let keyword = req.params.keyword || '';
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let tags = await ProblemTag.find({
where: {
name: TypeORM.Like(`%${req.params.keyword}%`)
},
order: {
name: 'ASC'
}
});
let result = tags.slice(0, syzoj.config.page.edit_problem_tag_list);
result = result.map(x => ({ name: x.name, value: x.id }));
res.send({ success: true, results: result });
} catch (e) {
syzoj.log(e);
res.send({ success: false });
}
});
app.apiRouter.post('/api/v2/markdown', async (req, res) => {
try {
let s = await syzoj.utils.markdown(req.body.s.toString(), null, req.body.noReplaceUI === 'true');
res.send(s);
} catch (e) {
syzoj.log(e);
res.send(e);
}
});
function verifyJWT(token) {
try {
jwt.verify(token, syzoj.config.session_secret);
return true;
} catch (e) {
return false;
}
}
app.apiRouter.get('/api/v2/download/:token', async (req, res) => {
try {
const token = req.params.token, data = jwt.decode(token);
if (!data) throw new ErrorMessage("无效的令牌。");
if (url.parse(syzoj.utils.getCurrentLocation(req, true)).href !== url.parse(syzoj.config.site_for_download).href) {
throw new ErrorMessage("无效的下载地址。");
}
if (verifyJWT(token)) {
res.download(data.filename, data.sendName);
} else {
res.redirect(data.originUrl);
}
} catch (e) {
syzoj.log(e);
res.render('error', {
err: e
});
}
})