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
|
// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.jdisc.http.server.jetty;
import com.yahoo.jdisc.Response;
import com.yahoo.jdisc.http.ConnectorConfig;
import com.yahoo.jdisc.http.servlet.ServletRequest;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.handler.HandlerWrapper;
import javax.servlet.DispatcherType;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import static com.yahoo.jdisc.http.server.jetty.HttpServletRequestUtils.getConnectorLocalPort;
/**
* A Jetty handler that enforces TLS client authentication with configurable white list.
*
* @author bjorncs
*/
class TlsClientAuthenticationEnforcer extends HandlerWrapper {
private final Map<Integer, List<String>> portToWhitelistedPathsMapping;
TlsClientAuthenticationEnforcer(List<ConnectorConfig> connectorConfigs) {
portToWhitelistedPathsMapping = createWhitelistMapping(connectorConfigs);
}
@Override
public void handle(String target, Request request, HttpServletRequest servletRequest, HttpServletResponse servletResponse) throws IOException, ServletException {
if (isHttpsRequest(request)
&& !isRequestToWhitelistedBinding(servletRequest)
&& !isClientAuthenticated(servletRequest)) {
servletResponse.sendError(
Response.Status.UNAUTHORIZED,
"Client did not present a x509 certificate, " +
"or presented a certificate not issued by any of the CA certificates in trust store.");
} else {
_handler.handle(target, request, servletRequest, servletResponse);
}
}
private static Map<Integer, List<String>> createWhitelistMapping(List<ConnectorConfig> connectorConfigs) {
var mapping = new HashMap<Integer, List<String>>();
for (ConnectorConfig connectorConfig : connectorConfigs) {
var enforcerConfig = connectorConfig.tlsClientAuthEnforcer();
if (enforcerConfig.enable()) {
mapping.put(connectorConfig.listenPort(), enforcerConfig.pathWhitelist());
}
}
return mapping;
}
private boolean isHttpsRequest(Request request) {
return request.getDispatcherType() == DispatcherType.REQUEST && request.getScheme().equalsIgnoreCase("https");
}
private boolean isRequestToWhitelistedBinding(HttpServletRequest servletRequest) {
int localPort = getConnectorLocalPort(servletRequest);
List<String> whiteListedPaths = getWhitelistedPathsForPort(localPort);
if (whiteListedPaths == null) {
return true; // enforcer not enabled
}
// Note: Same path definition as HttpRequestFactory.getUri()
return whiteListedPaths.contains(servletRequest.getRequestURI());
}
private List<String> getWhitelistedPathsForPort(int localPort) {
if (portToWhitelistedPathsMapping.containsKey(0) && portToWhitelistedPathsMapping.size() == 1) {
return portToWhitelistedPathsMapping.get(0); // for unit tests which uses 0 for listen port
}
return portToWhitelistedPathsMapping.get(localPort);
}
private boolean isClientAuthenticated(HttpServletRequest servletRequest) {
return servletRequest.getAttribute(ServletRequest.SERVLET_REQUEST_X509CERT) != null;
}
}
|
