### 安裝必要套件
```bash=
sudo apt update
sudo apt upgrade -y
sudo apt install python3 ant python3-pip mysql-server mysql-client-core-8.0 libguestfs-tools git lxc vim tar default-jdk wget -y
```
### 新增一個新的 user 並給予 sudo 權限
因為 ZeroJudge 需要還要讓他可以 no password sudo
```bash=
sudo useradd -r -s /bin/bash -m <user>
sudo passwd <user>
vim /etc/sudoers
```
最後一行加上
```text
<user> ALL=(ALL:ALL) NOPASSWD:ALL
```
### 設定 MySQL
```bash=
mysql -uroot -p
# 更改 root 密碼
ALTER USER 'root'@'localhost' IDENTIFIED BY '<password>';
exit;
mysql -uroot -p
# 新增一個 mysql 用戶
CREATE USER '<user>'@'localhost' IDENTIFIED WITH mysql_native_password BY 'password';
# ZeroJudge 用的資料庫
CREATE DATABASE <database name>;
GRANT ALL ON <database name>.* TO '<user>'@'localhost';
FLUSH PRIVILEGES;
exit;
```
### 切換成剛剛建立的 user 的帳號
```powershell=
exit
su <user>
```
### 安裝 Tomcat
```bash=
sudo groupadd tomcat
sudo useradd -s /bin/false -g tomcat -d /var/lib/tomcat8 tomcat
cd /tmp
wget https://archive.apache.org/dist/tomcat/tomcat-8/v8.5.73/bin/apache-tomcat-8.5.73.tar.gz
sudo mkdir /var/lib/tomcat8
sudo tar xzvf apache-tomcat-8.5.73.tar.gz -C /var/lib/tomcat8 --strip-components=1
cd /var/lib/tomcat8
sudo chgrp -R tomcat /var/lib/tomcat8
sudo chmod -R g+r conf
sudo chmod g+x conf
sudo chown -R tomcat webapps/ work/ temp/ logs/
sudo update-java-alternatives -l
```
你會看到下列這種輸出
```shell
java-1.11.0-openjdk-amd64 1111 /usr/lib/jvm/java-1.11.0-openjdk-amd64
```
接下來建立檔案
```bash=
sudo vim /etc/systemd/system/tomcat8.service
```
輸入 (Environment=JAVA_HOME 這行為上面輸出結果後面加 " /jre")
```service
[Unit]
Description=Apache Tomcat Web Application Container
After=network.target
[Service]
Type=forking
Environment=JAVA_HOME=/usr/lib/jvm/java-1.11.0-openjdk-amd64 /jre
Environment=CATALINA_PID=/var/lib/tomcat8/temp/tomcat.pid
Environment=CATALINA_HOME=/var/lib/tomcat8
Environment=CATALINA_BASE=/var/lib/tomcat8
Environment='CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC'
Environment='JAVA_OPTS=-Djava.awt.headless=true -Djava.security.egd=file:/dev/./urandom'
ExecStart=/var/lib/tomcat8/bin/startup.sh
ExecStop=/var/lib/tomcat8/bin/shutdown.sh
User=tomcat
Group=tomcat
UMask=0007
RestartSec=10
Restart=always
[Install]
WantedBy=multi-user.target
```
完成之後要 reload
```bash=
sudo systemctl daemon-reload
```
開始 Tomcat
```bash=
sudo systemctl start tomcat8
```
確認是否正確執行
```bash=
sudo systemctl status tomcat8
```
新增使用者(管理Web GUI頁面)
```bash=
sudo vim /var/lib/tomcat8/conf/tomcat-users.xml
```
在 \<tomcat-users> 跟 </tomcat-users> 之間加上
```xml
<role rolename="manager-gui" />
<user username="manager" password="<password>" roles="manager-gui" />
<role rolename="admin-gui" />
<user username="admin" password="<password>" roles="manager-gui,admin-gui" />
```
然後編輯 Webapp 管理頁面
```bash=
sudo vim /var/lib/tomcat8/webapps/manager/META-INF/context.xml
sudo vim /var/lib/tomcat8/webapps/host-manager/META-INF/context.xml
```
找到
```xml
<Valve className="org.apache.catalina.valves.RemoteAddrValve"
allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />
```
在前後補上 <!\-- \-->
```xml
<!--<Valve className="org.apache.catalina.valves.RemoteAddrValve"
allow="127\.\d+\.\d+\.\d+|::1|0:0:0:0:0:0:0:1" />-->
```
最後重開
```bash=
sudo systemctl restart tomcat8
```
### 獲取 ZeroJudge 需要的 LXC 檔案
先回去 home
```bash=
cd
```
然後安裝 gdown
```bash=
pip install gdown
export PATH="/home/<user>/.local/bin:$PATH"
source ~/.profile
# 確認 /home/<user>/.local/bin 是否有效
echo $PATH
```
下載 ZeroJudge 虛擬機
```bash=
gdown https://drive.google.com/uc?id=1Y-PW031lYHOuxqQUe3rjL2B8ePEGyRuC
```
解壓縮虛擬機
```bash=
tar -xvf ZeroJudgeVM3.4.2.ova
```
掛接 vmdk 並複製 lxc 檔案
```bash=
sudo mkdir /mnt/u1
sudo guestmount -i -r /mnt/u1 -a ZeroJudgeVM-disk001.vmdk
sudo cp -r /mnt/u1/var/lib/lxc/lxc-ALL/ /var/lib/lxc/
sudo service lxc restart
sudo umount /mnt/u1
```
### 給 tomcat 權限
```bash=
vim /etc/sudoers
```
最後一行加上
```text
tomcat ALL=(ALL:ALL) NOPASSWD:ALL
```
### 架設 ZeroJudge
先安裝套件
```bash=
sudo pip install fire bs4 lxml
```
複製 tomcat library 到 /usr/share/tomcat8
```bash=
sudo mkdir /usr/share/tomcat8
sudo cp -r /var/lib/tomcat8/lib/ /usr/share/tomcat8/
```
clone ZeroJudge 的 repo
```bash=
git clone https://github.com/jiangsir/ZeroJudge.git
```
開始執行
```bash=
sudo python3 ZeroJudge/setup.py install <dbpass> --dbuser <dbuser>
```
由於預設剛開始要本機登入，所以要先修改允許 IP
```bash=
sudo mysql -uroot -p
USE zerojudge;
UPDATE appconfigs set manager_ip = '[0.0.0.0/0]';
UPDATE appconfigs set allowedIP = '[0.0.0.0/0]';
```
for Judge Server
```bash=
sudo -i
vim /var/lib/tomcat8/webapps/ZeroJudge_Server/WEB-INF/ServerConfig.xml
```
輸入
```xml=
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE properties SYSTEM "http://java.sun.com/dtd/properties.dtd">
<properties>
<comment></comment>
<entry key="cryptKey">ZZEERROO</entry>
<entry key="ServerInfo"></entry>
<entry key="Servername">ZeroJudgeServer</entry>
<entry key="Lxc_EXEC">sudo lxc-attach -n lxc-ALL</entry>
<entry key="ServerOS">UbuntuServer</entry>
<entry key="version">3.5</entry>
<entry key="isTLEbreak">true</entry>
<entry key="sshport">22</entry>
<entry key="allowIPset">[0.0.0.0/0]</entry>
<entry key="JVM_MB">3000</entry>
<entry key="rsyncAccount">zero</entry>
<entry key="Lxc_PATH">/var/lib/lxc/lxc-ALL/rootfs/</entry>
<entry key="isCleanTmpFile">true</entry>
<entry key="CONSOLE_PATH">/JudgeServer_CONSOLE</entry>
<entry key="Compilers">[{"version":"gcc -std=c11 (gcc 7.4.0)","path":"","language":"C","command_begin":"","cmd_compile":"gcc $S/$C.c -std=c11 -lm -lcrypt -O2 -pipe -DONLINE_JUDGE -o $S/$C.exe","cmd_namemangling":"nm -A $S/$C.exe","cmd_execute":"$S/$C.exe < $T > $S/$C.out","cmd_makeobject":"g++ $S/$C.c -o $S/$C.o","timeextension":1.0,"command_end":"","samplecode":"#include<stdio.h>\r\nint main() {\r\n char s[9999];\r\nwhile( scanf(\"%s\",s)!=EOF ) {\r\n printf(\"hello, %s\\n\",s);\r\n }\r\n return 0;\r\n}","restrictedfunctions":["system","fopen","fclose","freopen","fflush","fstream","time.h","#pargma","conio.h","fork","popen","execl","execlp","execle","execv","execvp","getenv","putenv","setenv","unsetenv","socket","connect","fwrite","gethostbyname"],"enable":"C","suffix":"c"},{"version":"g++ -std=c++14 (g++ 7.4.0)","path":"","language":"CPP","command_begin":"","cmd_compile":"g++ -std=c++14 -lm -lcrypt -O2 -pipe -DONLINE_JUDGE -o $S/$C.exe $S/$C.cpp","cmd_namemangling":"nm -A $S/$C.exe","cmd_execute":"$S/$C.exe < $T > $S/$C.out","cmd_makeobject":"g++ $S/$C.cpp -o $S/$C.o","timeextension":1.0,"command_end":"","samplecode":"#include <iostream>\r\nusing namespace std;\r\n\r\nint main() {\r\nstring s;\r\n while(cin >> s){\r\ncout << \"hello, \"<< s << endl;\r\n }\r\n return 0;\r\n}","restrictedfunctions":["system","fopen","fclose","freopen","fflush","fstream","ifstream","ofstream","time.h","#pargma","conio.h","fork","popen","execl","execlp","execle","execv","execvp","getenv","putenv","setenv","unsetenv","socket","connect","fwrite","gethostbyname"],"enable":"CPP","suffix":"cpp"},{"version":"OpenJDK java version 1.8.0_222","path":"","language":"JAVA","command_begin":"","cmd_compile":"javac -encoding UTF-8 $S/$C.java","cmd_namemangling":"javap -classpath $S -verbose $C","cmd_execute":"java -Dfile.encoding=utf-8 -classpath $S $C < $T > $S/$C.out","cmd_makeobject":"","timeextension":3.0,"command_end":"","samplecode":"import java.util.Scanner;\r\npublic class JAVA {\r\n\tpublic static void main(String[] args) {\r\n\t\tScanner cin= new Scanner(System.in);\r\n\t\tString s;\r\n\t\twhile (cin.hasNext()) {\r\n\t\t\ts=cin.nextLine();\r\n\t\t\tSystem.out.println(\"hello, \" + s);\r\n\t\t}\r\n\t}\r\n}","restrictedfunctions":["java\\.io\\.File.*","java\\.net\\..*","java\\.lang\\.Thread","java\\.lang\\.Runtime","java\\.lang\\.Runnable","java\\.lang\\.Process","java\\.applet\\..*","java\\.awt\\..*","java\\.nio\\..*","java\\.sql\\..*","java\\.security\\..*","java\\.rmi\\..*","java\\.lang\\.Exception","java\\.lang\\.RuntimeException"],"enable":"JAVA","suffix":"java"},{"version":"Free Pascal Compiler version 3.0.4","path":"","language":"PASCAL","command_begin":"","cmd_compile":"fpc -o$S/$C.exe -Sg $S/$C.pas","cmd_namemangling":"nm -A $S/$C.o","cmd_execute":"$S/$C.exe < $T > $S/$C.out","cmd_makeobject":"","timeextension":1.0,"command_end":"","samplecode":"var s : string;\r\nbegin\r\nwhile not eof do begin\r\nreadln(s);\r\nwriteln('hello, ',s);\r\nend;\r\nend.","restrictedfunctions":["SYSTEM_RESET","SYSTEM_CLOSE","SYSTEM_ASSIGN","SYSTEM_REWRITE","dos","SysUtils","exec","stdcall","external","assign","reset","rewrite","close","execute","OBJPAS_CLOSEFILE","OBJPAS_ASSIGNFILE","GenerateInstruction_CALL_FAR","SysProc_SeekFile","SysProc_EraseFile","SysProc_RenameFileC","SysProc_TruncFile"],"enable":null,"suffix":"pas"},{"version":"Python 3.6.9","path":"","language":"PYTHON","command_begin":"","cmd_compile":"","cmd_namemangling":"","cmd_execute":"PYTHONIOENCODING=utf-8 python3 $S/$C.py < $T > $S/$C.out","cmd_makeobject":"","timeextension":3.0,"command_end":"","samplecode":"while True:\r\n try:\r\n s = input()\r\n print('hello, '+s)\r\n except:\r\n break\r\n","restrictedfunctions":[],"enable":"PYTHON","suffix":"py"}]</entry>
</properties>
```
然後
```bash=
service tomcat8 restart
exit
```
打開 http://\<server ip>:8080，用管理員帳號登入之後修改裁判機IP (http://127.0.0.1:8080/ZeroJudge_Server/) 就可以了
管理員預設帳密
```text=
帳號 zero
密碼 !@#$zerojudge
```
### 將舊有資料接回去
在舊的機器上，把database dump出來
```
mysqldump -u <user> -p <database> > example.sql
```
資料都儲存在zerojudge (database) 以mysql做示範
```
mysql -u <user> -p zerojudge < example.sql
```
這樣就好惹
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