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
141
|
/*-
* ============LICENSE_START=======================================================
* org.onap.dmaap
* ================================================================================
* Copyright (C) 2019 Nokia 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.dmaap.dbcapi.resources;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Properties;
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.http.HttpServletResponse;
import org.eclipse.jetty.http.HttpStatus;
import org.onap.aaf.cadi.PropAccess;
import org.onap.aaf.cadi.filter.CadiFilter;
import org.onap.dmaap.dbcapi.logging.BaseLoggingClass;
import org.onap.dmaap.dbcapi.model.ApiError;
import org.onap.dmaap.dbcapi.util.DmaapConfig;
public class AAFAuthenticationFilter extends BaseLoggingClass implements Filter{
static final String CADI_PROPERTIES = "cadi.properties";
static final String CADI_AUTHN_FLAG = "enableCADI";
private boolean isCadiEnabled;
private CadiFilter cadiFilter;
@Override
public void init(FilterConfig filterConfig) throws ServletException {
DmaapConfig dmaapConfig = getConfig();
String flag = dmaapConfig.getProperty(CADI_AUTHN_FLAG, "false");
isCadiEnabled = "true".equalsIgnoreCase(flag);
initCadi(dmaapConfig);
}
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
throws IOException, ServletException {
if(isCadiEnabled) {
cadiFilter.doFilter(servletRequest, servletResponse, filterChain);
updateResponseBody((HttpServletResponse)servletResponse);
} else {
filterChain.doFilter(servletRequest, servletResponse);
}
}
private void updateResponseBody(HttpServletResponse httpResponse)
throws IOException {
if(httpResponse.getStatus() == 401) {
String errorMsg = "invalid or no credentials provided";
errorLogger.error(errorMsg);
httpResponse.setContentType("application/json");
httpResponse.setCharacterEncoding("UTF-8");
httpResponse.getWriter().print(buildErrorResponse(errorMsg));
httpResponse.getWriter().flush();
}
}
private String buildErrorResponse(String msg) {
try {
return new ObjectMapper().writeValueAsString(new ApiError(HttpStatus.UNAUTHORIZED_401, msg, "Authentication"));
} catch (JsonProcessingException e) {
logger.warn("Could not serialize response entity: " + e.getMessage());
return "";
}
}
@Override
public void destroy() {
//nothing to cleanup
}
private void initCadi(DmaapConfig dmaapConfig) throws ServletException {
if(isCadiEnabled) {
try {
String cadiPropertiesFile = dmaapConfig.getProperty(CADI_PROPERTIES);
if(cadiPropertiesFile != null && !cadiPropertiesFile.isEmpty()) {
cadiFilter = new CadiFilter(loadCadiProperties(cadiPropertiesFile));
} else {
throw new ServletException("Cannot initialize CADI filter.CADI properties not available.");
}
} catch (ServletException e) {
errorLogger.error("CADI init error :" + e.getMessage());
throw e;
}
}
}
private PropAccess loadCadiProperties(String propertiesFilePath) throws ServletException {
try {
Properties props = new Properties();
props.load(new FileInputStream(propertiesFilePath));
return new PropAccess(props);
} catch (IOException e) {
String msg = "Could not load CADI properties file: " + propertiesFilePath;
errorLogger.error(msg, e);
throw new ServletException(msg);
}
}
DmaapConfig getConfig() {
return (DmaapConfig) DmaapConfig.getConfig();
}
//tests only
CadiFilter getCadiFilter() {
return cadiFilter;
}
void setCadiFilter(CadiFilter cadiFilter) {
this.cadiFilter = cadiFilter;
}
boolean isCadiEnabled() {
return isCadiEnabled;
}
}
|
