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
|
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.jk.status;
import java.io.IOException;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.URL;
import java.net.URLConnection;
import org.apache.catalina.util.Base64;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.tomcat.util.digester.Digester;
/**
* Create connection to mod_jk jkstatus page.
* Optional you can use Http basic auth user and password.
* @author Peter Rossbach
* @version $Revision: 485242 $ $Date: 2006-12-10 20:45:39 +0100 (Sun, 10 Dec 2006) $
* @see org.apache.jk.status.JkStatusParser
* @since 5.5.10
*/
public class JkStatusAccessor {
private static Log log = LogFactory.getLog(JkStatusAccessor.class);
/**
* The descriptive information about this implementation.
*/
protected static final String info = "org.apache.jk.status.JkStatusAccessor/1.0";
/**
* Parse Apache mod_jk Status from base url http://host:port/jkstatus)
* @param url
* @param username
* @param password
*
*/
public JkStatus status(String url, String username, String password)
throws Exception {
if(url == null || "".equals(url))
return null ;
HttpURLConnection hconn = null;
JkStatus status = null;
try {
// FIXME: use cmd show for older mod_jk versions
hconn = openConnection(url + "?cmd=list&mime=xml", username, password);
Digester digester = JkStatusParser.getDigester();
synchronized (digester) {
status = (JkStatus) digester.parse(hconn.getInputStream());
}
} catch (Throwable t) {
throw new Exception(t);
} finally {
if (hconn != null) {
try {
hconn.disconnect();
} catch (Throwable u) {
;
}
hconn = null;
}
}
return status;
}
/**
* Create a auth http connection for this url
*
* @param url
* @param username
* @param password
* @return HttpConnection
* @throws IOException
* @throws MalformedURLException
* @throws ProtocolException
*/
protected HttpURLConnection openConnection(String url, String username,
String password) throws IOException, MalformedURLException,
ProtocolException {
URLConnection conn;
conn = (new URL(url)).openConnection();
HttpURLConnection hconn = (HttpURLConnection) conn;
// Set up standard connection characteristics
hconn.setAllowUserInteraction(false);
hconn.setDoInput(true);
hconn.setUseCaches(false);
hconn.setDoOutput(false);
hconn.setRequestMethod("GET");
hconn.setRequestProperty("User-Agent", "JkStatus-Client/1.0");
if(username != null && password != null ) {
setAuthHeader(hconn, username, password);
}
// Establish the connection with the server
hconn.connect();
return hconn;
}
/**
* Set Basic Auth Header
*
* @param hconn
* @param username
* @param password
*/
protected void setAuthHeader(HttpURLConnection hconn, String username,
String password) {
// Set up an authorization header with our credentials
String input = username + ":" + password;
String output = new String(Base64.encode(input.getBytes()));
hconn.setRequestProperty("Authorization", "Basic " + output);
}
}
|
