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
|
/*-
* ============LICENSE_START=======================================================
* ONAP-PAP-REST
* ================================================================================
* Copyright (C) 2017-2019 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Licensed 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.
* ============LICENSE_END=========================================================
*/
package org.onap.policy.pap.xacml.restAuth;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* Servlet Filter implementation class PAPAuthenticationFilter
*/
@WebFilter("/*")
public class PAPAuthenticationFilter implements Filter {
private static final Log logger = LogFactory.getLog(PAPAuthenticationFilter.class);
public static final String AUTHENTICATION_HEADER = "Authorization";
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain filter)
throws IOException, ServletException {
if (request instanceof HttpServletRequest) {
HttpServletRequest httpServletRequest = (HttpServletRequest) request;
String authCredentials = null;
String url = httpServletRequest.getRequestURI();
logger.info("Request URI: " + url);
// getting authentication credentials
authCredentials = httpServletRequest.getHeader(AUTHENTICATION_HEADER);
// Check Authentication credentials
AuthenticationService authenticationService = new AuthenticationService();
boolean authenticationStatus = authenticationService.authenticate(authCredentials);
if (authenticationStatus) {
// indicates the request comes from Traditional Admin Console or PolicyEngineAPI
if ("/pap/".equals(url)) {
logger.info("Request comes from Traditional Admin Console or PolicyEngineAPI");
// forward request to the XACMLPAPServlet if authenticated
request.getRequestDispatcher("/pap/pap/").forward(request, response);
} else if (url.startsWith("/pap/onap/") && response instanceof HttpServletResponse) {
// indicates the request comes from the ONAP Portal onap-sdk-app
HttpServletResponse alteredResponse = ((HttpServletResponse) response);
addCorsHeader(alteredResponse);
logger.info("Request comes from Onap Portal");
// Spring dispatcher servlet is at the end of the filter chain at /pap/onap/ path
filter.doFilter(request, response);
}
} else {
if (response instanceof HttpServletResponse) {
HttpServletResponse httpServletResponse = (HttpServletResponse) response;
httpServletResponse.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
}
}
}
}
// method to add CorsHeaders for onap portal rest call
private void addCorsHeader(HttpServletResponse response) {
logger.info("Adding Cors Response Headers!!!");
response.addHeader("Access-Control-Allow-Origin", "*");
response.addHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE, HEAD");
response.addHeader("Access-Control-Allow-Headers",
"X-PINGOTHER, Origin, X-Requested-With, Content-Type, Accept");
response.addHeader("Access-Control-Max-Age", "1728000");
}
@Override
public void destroy() {
// Empty
}
@Override
public void init(FilterConfig arg0) throws ServletException {
// Empty
}
}
|
