SshServlet.java
3.79 KB
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
135
136
137
138
139
140
package fi.insomnia.bortal.servlet;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
import javax.ejb.EJB;
import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.sshd.SshServer;
import org.apache.sshd.common.Factory;
import org.apache.sshd.server.Command;
import org.apache.sshd.server.keyprovider.SimpleGeneratorHostKeyProvider;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import fi.insomnia.bortal.beans.EventBeanLocal;
import fi.insomnia.bortal.beans.PermissionBeanLocal;
import fi.insomnia.bortal.clientutils.BortalLocalContextHolder;
import fi.insomnia.bortal.cmdline.Hello;
import fi.insomnia.bortal.model.LanEvent;
/**
* Servlet implementation class SshServlet
*/
@WebServlet(urlPatterns = "/ssh", loadOnStartup = 10)
public class SshServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
private static final Logger logger = LoggerFactory.getLogger(SshServlet.class);
private Map<Integer, SshServer> servers = new HashMap<Integer, SshServer>();
// Timeout 30 min
private static final String TIMEOUT = new Integer(1000 * 60 * 30).toString();
@EJB
private EventBeanLocal eventbean;
@EJB
private PermissionBeanLocal permBean;
/**
* @see HttpServlet#HttpServlet()
*/
public SshServlet() {
super();
// TODO Auto-generated constructor stub
}
private class SshShellFactor implements Factory<Command> {
private BortalLocalContextHolder context;
public SshShellFactor(BortalLocalContextHolder instance) {
context = instance;
}
@Override
public Command create() {
logger.info("creating new bortal command");
BortalCommand bc = new BortalCommand(context);
bc
.addCommandlineCommand("hello", new Hello(permBean))
.addCommandlineCommand("hallo", new Hello(permBean));
return bc;
}
}
/**
* @see Servlet#init(ServletConfig)
*/
public void init(ServletConfig config) throws ServletException {
}
private SshServer initSsh(Integer id) {
logger.info("Initializing ssh servlet");
SshServer sshd = SshServer.setUpDefaultServer();
sshd.setPort(8022);
sshd.getProperties().put(SshServer.IDLE_TIMEOUT, TIMEOUT);
sshd.setShellFactory(new SshShellFactor(BortalLocalContextHolder.getInstance()));
BortalPasswordAuthenticator pswdAuth = new BortalPasswordAuthenticator(BortalLocalContextHolder.getInstance());
sshd.setPasswordAuthenticator(pswdAuth);
sshd.setKeyPairProvider(new SimpleGeneratorHostKeyProvider("hostkey.ser"));
try {
sshd.start();
return sshd;
} catch (IOException e) {
logger.warn("sshd start failed! ", e);
}
return null;
}
/**
* @see Servlet#destroy()
*/
public void destroy() {
logger.info("Destroying ssh servlet");
for (Entry<Integer, SshServer> entry : servers.entrySet())
{
try {
entry.getValue().stop();
} catch (InterruptedException e) {
logger.warn("Error stopping ssh", e);
}
}
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
LanEvent event = eventbean.getCurrentEvent();
if (!servers.containsKey(event.getId())) {
SshServer ssh = initSsh(event.getId());
if (ssh != null) {
servers.put(event.getId(), ssh);
}
}
}
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
}
}