1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
package Store;
import Server.JSONMessage;
import com.corundumstudio.socketio.listener.DataListener;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Map;
public class User {
private int id;
private final String userName;
private final String password;
public User(String userName, String password) {
this.userName = userName;
this.password = password;
}
public boolean save() throws SQLException {
if (!checkUniqueUsername(userName)) {
return false;
}
String sql = "INSERT INTO User (userName, password) VALUES (?, ?)";
PreparedStatement statement = ConnectionHandler.connection.prepareStatement(sql);
statement.setString(1, userName);
statement.setString(2, password);
statement.executeUpdate();
return true;
}
private boolean checkUniqueUsername(String userName) throws SQLException {
String sql = "SELECT * FROM User WHERE userName = '" + userName + "'";
Statement statement = ConnectionHandler.connection.createStatement();
ResultSet response = statement.executeQuery(sql);
while (response.next()) {
return false;
}
return true;
}
public boolean login() throws SQLException {
String sql = "SELECT * FROM User WHERE userName = '" + this.userName + "' AND password = '" + this.password + "'";
Statement statement = ConnectionHandler.connection.createStatement();
boolean loggedIn = false;
ResultSet response = statement.executeQuery(sql);
while (response.next()) {
this.id = response.getInt("ID");
loggedIn = true;
}
return loggedIn;
}
public static void createTable() throws SQLException {
String sql = "CREATE TABLE IF NOT EXISTS User (" +
"ID INTEGER NOT NULL PRIMARY KEY," +
"userName TEXT NOT NULL," +
"password text NOT NULL" +
");";
Statement statement = ConnectionHandler.connection.createStatement();
statement.execute(sql);
}
public static DataListener<JSONMessage> signUpHandler() {
return ((client, data, ackSender) -> {
Thread t = new Thread(() -> {
Map<String,String> d = data.getData();
User user = new User(d.get("userName"), d.get("password"));
try {
if (user.save()) {
client.sendEvent("signedUp");
} else {
client.sendEvent("usernameTaken");
client.sendEvent("signUpFailed");
}
} catch (SQLException e) {
client.sendEvent("signUpFailed");
System.out.println(e.getMessage());
}
});
t.start();
t.join();
});
}
public static DataListener<JSONMessage> loginHandler() {
return ((client, data, ackSender) -> {
Thread t = new Thread(() -> {
Map<String,String> d = data.getData();
User user = new User(d.get("userName"), d.get("password"));
try {
user.login();
} catch (SQLException e) {
System.out.println(e.getMessage());
}
try {
if (user.login()) {
client.sendEvent("loggedIn", user.id);
} else {
client.sendEvent("loginFailed");
}
} catch (SQLException e) {
throw new RuntimeException(e);
}
});
t.start();
t.join();
});
}
public String toJSON() {
return "{" +
"\"id\": " + id + "," +
"\"userName\": " + userName + "," +
"\"password\": " + password +
" }";
}
}
|