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 statisticsStatements = {
fastest:
'\
SELECT \
DISTINCT(`user_id`) AS `user_id`, \
( \
SELECT \
`id` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `total_time` ASC \
LIMIT 1 \
) AS `id`, \
( \
SELECT \
`total_time` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `total_time` ASC \
LIMIT 1 \
) AS `total_time` \
FROM `judge_state` `outer_table` \
WHERE \
`problem_id` = __PROBLEM_ID__ AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `total_time` ASC \
',
slowest:
' \
SELECT \
DISTINCT(`user_id`) AS `user_id`, \
( \
SELECT \
`id` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `total_time` DESC \
LIMIT 1 \
) AS `id`, \
( \
SELECT \
`total_time` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `total_time` DESC \
LIMIT 1 \
) AS `total_time` \
FROM `judge_state` `outer_table` \
WHERE \
`problem_id` = __PROBLEM_ID__ AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `total_time` DESC \
',
shortest:
' \
SELECT \
DISTINCT(`user_id`) AS `user_id`, \
( \
SELECT \
`id` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY LENGTH(`code`) ASC \
LIMIT 1 \
) AS `id`, \
( \
SELECT \
LENGTH(`code`) \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY LENGTH(`code`) ASC \
LIMIT 1 \
) AS `code_length` \
FROM `judge_state` `outer_table` \
WHERE \
`problem_id` = __PROBLEM_ID__ AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `code_length` ASC \
',
longest:
' \
SELECT \
DISTINCT(`user_id`) AS `user_id`, \
( \
SELECT \
`id` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY LENGTH(`code`) DESC \
LIMIT 1 \
) AS `id`, \
( \
SELECT \
LENGTH(`code`) \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY LENGTH(`code`) DESC \
LIMIT 1 \
) AS `code_length` \
FROM `judge_state` `outer_table` \
WHERE \
`problem_id` = __PROBLEM_ID__ AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `code_length` DESC \
',
earliest:
' \
SELECT \
DISTINCT(`user_id`) AS `user_id`, \
( \
SELECT \
`id` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `submit_time` ASC \
LIMIT 1 \
) AS `id`, \
( \
SELECT \
`submit_time` \
FROM `judge_state` `inner_table` \
WHERE `problem_id` = `outer_table`.`problem_id` AND `user_id` = `outer_table`.`user_id` AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `submit_time` ASC \
LIMIT 1 \
) AS `submit_time` \
FROM `judge_state` `outer_table` \
WHERE \
`problem_id` = __PROBLEM_ID__ AND `status` = "Accepted" AND `type` = 0 \
ORDER BY `submit_time` ASC \
'
};
let Sequelize = require('sequelize');
let db = syzoj.db;
let User = syzoj.model('user');
let TestData = syzoj.model('testdata');
let model = db.define('problem', {
id: { type: Sequelize.INTEGER, primaryKey: true, autoIncrement: true },
title: { type: Sequelize.STRING(80) },
user_id: {
type: Sequelize.INTEGER,
references: {
model: 'user',
key: 'id'
}
},
description: { type: Sequelize.TEXT },
input_format: { type: Sequelize.TEXT },
output_format: { type: Sequelize.TEXT },
example: { type: Sequelize.TEXT },
limit_and_hint: { type: Sequelize.TEXT },
time_limit: { type: Sequelize.INTEGER },
memory_limit: { type: Sequelize.INTEGER },
testdata_id: {
type: Sequelize.INTEGER,
references: {
model: 'file',
key: 'id'
}
},
ac_num: { type: Sequelize.INTEGER },
submit_num: { type: Sequelize.INTEGER },
is_public: { type: Sequelize.BOOLEAN },
file_io: { type: Sequelize.BOOLEAN },
file_io_input_name: { type: Sequelize.TEXT },
file_io_output_name: { type: Sequelize.TEXT }
}, {
timestamps: false,
tableName: 'problem',
indexes: [
{
fields: ['title'],
},
{
fields: ['user_id'],
}
]
});
let Model = require('./common');
class Problem extends Model {
static async create(val) {
return Problem.fromRecord(Problem.model.build(Object.assign({
title: '',
user_id: '',
description: '',
input_format: '',
output_format: '',
example: '',
limit_and_hint: '',
time_limit: syzoj.config.default.problem.time_limit,
memory_limit: syzoj.config.default.problem.memory_limit,
ac_num: 0,
submit_num: 0,
is_public: false,
file_io: false,
file_io_input_name: '',
file_io_output_name: ''
}, val)));
}
async loadRelationships() {
this.user = await User.fromID(this.user_id);
this.testdata = await TestData.fromID(this.testdata_id);
}
async isAllowedEditBy(user) {
if (!user) return false;
if (await user.hasPrivilege('manage_problem')) return true;
return this.user_id === user.id;
}
async isAllowedUseBy(user) {
if (this.is_public) return true;
if (!user) return false;
if (await user.hasPrivilege('manage_problem')) return true;
return this.user_id === user.id;
}
async isAllowedManageBy(user) {
if (!user) return false;
if (await user.hasPrivilege('manage_problem')) return true;
return user.is_admin;
}
async updateTestdata(path) {
let fs = Promise.promisifyAll(require('fs-extra'));
let buf = await fs.readFileAsync(path);
if (buf.length > syzoj.config.limit.data_size) throw new ErrorMessage('测试数据太大。');
let key = syzoj.utils.md5(buf);
await fs.moveAsync(path, TestData.resolvePath(key), { overwrite: true });
if (this.testdata_id) {
let tmp = this.testdata_id;
this.testdata_id = null;
await this.save();
let file = await TestData.fromID(tmp);
if (file) await file.destroy();
}
let filename = `test_data_${this.id}.zip`;
let file = await TestData.findOne({ where: { filename: filename } });
if (file) await file.destroy();
file = await TestData.create({
filename: filename,
md5: key
});
await file.save();
this.testdata_id = file.id;
await this.save();
}
async validate() {
if (this.time_limit <= 0) return 'Invalid time limit';
if (this.time_limit > syzoj.config.limit.time_limit) return 'Time limit too large';
if (this.memory_limit <= 0) return 'Invalid memory limit';
if (this.memory_limit > syzoj.config.limit.memory_limit) return 'Memory limit too large';
let filenameRE = /^[\w \-\+\.]*$/;
if (this.file_io_input_name && !filenameRE.test(this.file_io_input_name)) return 'Invalid input file name';
if (this.file_io_output_name && !filenameRE.test(this.file_io_output_name)) return 'Invalid output file name';
if (this.file_io) {
if (!this.file_io_input_name) return 'No input file name';
if (!this.file_io_output_name) return 'No output file name';
}
return null;
}
async getJudgeState(user, acFirst) {
if (!user) return null;
let JudgeState = syzoj.model('judge_state');
let where = {
user_id: user.id,
problem_id: this.id
};
if (acFirst) {
where.status = 'Accepted';
let state = await JudgeState.findOne({
where: where,
order: [['submit_time', 'desc']]
});
if (state) return state;
}
if (where.status) delete where.status;
return await JudgeState.findOne({
where: where,
order: [['submit_time', 'desc']]
});
}
// type: fastest / slowest / shortest / longest / earliest
async countStatistics(type) {
let statement = statisticsStatements[type];
if (!statement) return null;
statement = statement.replace('__PROBLEM_ID__', this.id);
return await db.countQuery(statement);
}
// type: fastest / slowest / shortest / longest / earliest
async getStatistics(type, paginate) {
let statistics = {
type: type,
judge_state: null,
scoreDistribution: null,
prefixSum: null,
suffixSum: null
};
let statement = statisticsStatements[type];
if (!statement) return null;
statement = statement.replace('__PROBLEM_ID__', this.id);
let a;
if (!paginate.pageCnt) a = [];
else a = (await db.query(statement + `LIMIT ${paginate.perPage} OFFSET ${(paginate.currPage - 1) * paginate.perPage}`))[0];
let JudgeState = syzoj.model('judge_state');
statistics.judge_state = await a.mapAsync(async x => JudgeState.fromID(x.id));
a = (await db.query('SELECT `score`, COUNT(*) AS `count` FROM `judge_state` WHERE `problem_id` = __PROBLEM_ID__ AND `type` = 0 AND `pending` = 0 GROUP BY `score`'.replace('__PROBLEM_ID__', this.id)))[0];
let scoreCount = [];
for (let score of a) {
score.score = Math.min(Math.round(score.score), 100);
scoreCount[score.score] = score.count;
}
if (scoreCount[0] === undefined) scoreCount[0] = 0;
if (scoreCount[100] === undefined) scoreCount[100] = 0;
statistics.scoreDistribution = [];
for (let i = 0; i < scoreCount.length; i++) {
if (scoreCount[i] !== undefined) statistics.scoreDistribution.push({ score: i, count: scoreCount[i] });
}
statistics.prefixSum = JSON.parse(JSON.stringify(statistics.scoreDistribution));
statistics.suffixSum = JSON.parse(JSON.stringify(statistics.scoreDistribution));
for (let i = 1; i < statistics.prefixSum.length; i++) {
statistics.prefixSum[i].count += statistics.prefixSum[i - 1].count;
}
for (let i = statistics.prefixSum.length - 1; i >= 1; i--) {
statistics.suffixSum[i - 1].count += statistics.suffixSum[i].count;
}
return statistics;
}
async getTags() {
let ProblemTagMap = syzoj.model('problem_tag_map');
let maps = await ProblemTagMap.query(null, {
problem_id: this.id
});
let ProblemTag = syzoj.model('problem_tag');
let res = await maps.mapAsync(async map => {
return ProblemTag.fromID(map.tag_id);
});
res.sort((a, b) => {
return a.color > b.color ? 1 : -1;
});
return res;
}
async setTags(newTagIDs) {
let ProblemTagMap = syzoj.model('problem_tag_map');
let oldTagIDs = (await this.getTags()).map(x => x.id);
let delTagIDs = oldTagIDs.filter(x => !newTagIDs.includes(x));
let addTagIDs = newTagIDs.filter(x => !oldTagIDs.includes(x));
for (let tagID of delTagIDs) {
let map = await ProblemTagMap.findOne({ where: {
problem_id: this.id,
tag_id: tagID
} });
await map.destroy();
}
for (let tagID of addTagIDs) {
let map = await ProblemTagMap.create({
problem_id: this.id,
tag_id: tagID
});
await map.save();
}
}
async changeID(id) {
id = parseInt(id);
await db.query('UPDATE `problem` SET `id` = ' + id + ' WHERE `id` = ' + this.id);
await db.query('UPDATE `judge_state` SET `problem_id` = ' + id + ' WHERE `problem_id` = ' + this.id);
await db.query('UPDATE `problem_tag_map` SET `problem_id` = ' + id + ' WHERE `problem_id` = ' + this.id);
await db.query('UPDATE `file` SET `filename` = ' + `"test_data_${id}.zip"` + ' WHERE `filename` = ' + `"test_data_${this.id}.zip"`);
let Contest = syzoj.model('contest');
let contests = await Contest.all();
for (let contest of contests) {
let problemIDs = await contest.getProblems();
let flag = false;
for (let i in problemIDs) {
if (problemIDs[i] === this.id) {
problemIDs[i] = id;
flag = true;
}
}
if (flag) {
await contest.setProblemsNoCheck(problemIDs);
await contest.save();
}
}
this.id = id;
await this.save();
}
getModel() { return model; }
}
Problem.model = model;
module.exports = Problem;