# SYZOJ 2
[中文](README.md) | English

An online judge system for algorithm competition.

This project is the **official** successor and rewritten version of the original Python/Flask version of SYZOJ, which is authorized by the original author [@Chenyao2333](https://github.com/Chenyao2333).

Currently maintained by [LibreOJ](https://loj.ac).

# Upgrading
Because of updates to the database structure, users who upgrade from a commit BEFORE [d5bcbe8fb79e80f9d603b764ac787295cceffa34](https://github.com/syzoj/syzoj/commit/d5bcbe8fb79e80f9d603b764ac787295cceffa34) (Feb 21, 2018) **MUST** perform the following SQL on the database:

```sql
ALTER TABLE `judge_state` ADD `is_public` TINYINT(1) NOT NULL AFTER `compilation`;
UPDATE `judge_state` JOIN `problem` ON `problem`.`id` = `judge_state`.`problem_id` SET `judge_state`.`is_public` = `problem`.`is_public`;
ALTER TABLE `syzoj`.`judge_state` ADD INDEX `judge_state_is_public` (`id`, `is_public`, `type_info`, `type`);
```

Who upgrade from a commit BEFORE [26d66ceef24fbb35481317453bcb89ead6c69076](https://github.com/syzoj/syzoj/commit/26d66ceef24fbb35481317453bcb89ead6c69076) (Nov 5, 2018) and not using SQLite **MUST** perform the following SQL on the database:

```sql
ALTER TABLE contest_player CHANGE score_details score_details JSON NOT NULL;
ALTER TABLE contest_ranklist CHANGE ranking_params ranking_params JSON NOT NULL;
ALTER TABLE contest_ranklist CHANGE ranklist ranklist JSON NOT NULL;
ALTER TABLE custom_test CHANGE result result JSON NOT NULL;
ALTER TABLE judge_state CHANGE compilation compilation JSON NOT NULL;
ALTER TABLE judge_state CHANGE result result JSON NOT NULL;
```

# Deploying
The previous tutorial for deploying is outdated and have been removed. Newest version of tutorial for deploying will be available soon.

Join QQ group [565280992](https://jq.qq.com/?_wv=1027&k=5JQZWwd) or Telegram group [@lojdev](https://t.me/lojdev) for help.

## Email Configuration
### register_mail
Whether to enable register mail verification.

### email\_jwt\_secret
Secret used for email token, **for security** please fill with random string.

### email
#### Sendmail(often fail, not recommended)
```js
  "email": {
    "method": "sendmail",
    "options": {
      "address": "sender@address.domain",
    }
  },
```

#### Aliyun Direct Mail(recommended)
```js
  "email": {
    "method": "aliyundm",
    "options": {
      "AccessKeyId": "xxxx",
      "AccessKeySecret": "xxxx",
      "AccountName": "sender@address.domain"
    }
  },
```

#### SMTP
```js
  "email": {
    "method": "smtp",
    "options": {
        "host": "smtp.163.com",
        "port": 465,
        "username": "xxx@163.com",
        "password": "xxx",
        "allowUnauthorizedTls": false
    }
  },
```