From 8eb2eac080c2e9595b506f49f25d2c1718453bbc Mon Sep 17 00:00:00 2001 From: Endi Sukma Dewata Date: Tue, 21 Aug 2012 17:38:29 -0500 Subject: Added proxy realm. CMS engine is a singleton and it's used by PKI realm to authenticate users accessing the subsystem. Since a Tomcat instance may contain multiple subsystems, each having separate realm, the PKI JAR links need to be moved into WEB-INF/lib so that they will run inside separate class loaders. Tomcat also requires that the authenticator and realm classes be available in common/lib. To address this a new package pki-tomcat.jar has been added. The package contains the authenticator and a proxy realm. When the subsystems start running, they will register their own realms into the proxy realms such that the authentications will be forwarded to the appropriate subsystems. Ticket #89 --- .../src/com/netscape/cms/tomcat/ProxyRealm.java | 139 +++++++++++++++++ .../cms/tomcat/SSLAuthenticatorWithFallback.java | 167 +++++++++++++++++++++ 2 files changed, 306 insertions(+) create mode 100644 base/common/src/com/netscape/cms/tomcat/ProxyRealm.java create mode 100644 base/common/src/com/netscape/cms/tomcat/SSLAuthenticatorWithFallback.java (limited to 'base/common/src/com/netscape/cms/tomcat') diff --git a/base/common/src/com/netscape/cms/tomcat/ProxyRealm.java b/base/common/src/com/netscape/cms/tomcat/ProxyRealm.java new file mode 100644 index 000000000..094c0561f --- /dev/null +++ b/base/common/src/com/netscape/cms/tomcat/ProxyRealm.java @@ -0,0 +1,139 @@ +package com.netscape.cms.tomcat; + +import java.beans.PropertyChangeListener; +import java.io.IOException; +import java.security.Principal; +import java.security.cert.X509Certificate; +import java.util.HashMap; +import java.util.Map; + +import org.apache.catalina.Container; +import org.apache.catalina.Context; +import org.apache.catalina.Realm; +import org.apache.catalina.Wrapper; +import org.apache.catalina.connector.Request; +import org.apache.catalina.connector.Response; +import org.apache.catalina.deploy.SecurityConstraint; +import org.ietf.jgss.GSSContext; + +/** + * @author Endi S. Dewata + */ +public class ProxyRealm implements Realm { + + public static Map proxies = new HashMap(); + + public Container container; + public Realm realm; + + public ProxyRealm() { + } + + @Override + public Container getContainer() { + return container; + } + + @Override + public void setContainer(Container container) { + this.container = container; + if (container instanceof Context) { + Context context = (Context)container; + proxies.put(context.getBaseName(), this); + } + } + + public Realm getRealm() { + return realm; + } + + public void setRealm(Realm realm) { + this.realm = realm; + realm.setContainer(container); + } + + public static void registerRealm(String contextName, Realm realm) { + ProxyRealm proxy = proxies.get(contextName); + if (proxy == null) return; + + proxy.setRealm(realm); + } + + @Override + public Principal authenticate(String username, String password) { + return realm.authenticate(username, password); + } + + @Override + public Principal authenticate(X509Certificate certs[]) { + return realm.authenticate(certs); + } + + @Override + public Principal authenticate( + String username, + String digest, + String nonce, + String nc, + String cnonce, + String qop, + String realmName, + String md5a2 + ) { + return realm.authenticate(username, digest, nonce, nc, cnonce, qop, realmName, md5a2); + } + + @Override + public Principal authenticate(GSSContext gssContext, boolean storeCreds) { + return realm.authenticate(gssContext, storeCreds); + } + + @Override + public boolean hasResourcePermission( + Request request, + Response response, + SecurityConstraint[] constraints, + Context context + ) throws IOException { + return realm.hasResourcePermission(request, response, constraints, context); + } + + @Override + public String getInfo() { + return realm.getInfo(); + } + + @Override + public void backgroundProcess() { + realm.backgroundProcess(); + } + + @Override + public SecurityConstraint[] findSecurityConstraints(Request request, Context context) { + return realm.findSecurityConstraints(request, context); + } + + @Override + public boolean hasRole(Wrapper wrapper, Principal principal, String role) { + return realm.hasRole(wrapper, principal, role); + } + + @Override + public boolean hasUserDataPermission( + Request request, + Response response, + SecurityConstraint[] constraint + ) throws IOException { + return realm.hasUserDataPermission(request, response, constraint); + } + + @Override + public void addPropertyChangeListener(PropertyChangeListener listener) { + realm.addPropertyChangeListener(listener); + } + + @Override + public void removePropertyChangeListener(PropertyChangeListener listener) { + realm.removePropertyChangeListener(listener); + } +} diff --git a/base/common/src/com/netscape/cms/tomcat/SSLAuthenticatorWithFallback.java b/base/common/src/com/netscape/cms/tomcat/SSLAuthenticatorWithFallback.java new file mode 100644 index 000000000..d1b3dc3f2 --- /dev/null +++ b/base/common/src/com/netscape/cms/tomcat/SSLAuthenticatorWithFallback.java @@ -0,0 +1,167 @@ +// --- BEGIN COPYRIGHT BLOCK --- +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; version 2 of the License. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License along +// with this program; if not, write to the Free Software Foundation, Inc., +// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +// +// (C) 2012 Red Hat, Inc. +// All rights reserved. +// --- END COPYRIGHT BLOCK --- + +package com.netscape.cms.tomcat; + +import java.io.IOException; +import java.security.cert.X509Certificate; + +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; +import javax.servlet.http.HttpServletResponseWrapper; + +import org.apache.catalina.Container; +import org.apache.catalina.Globals; +import org.apache.catalina.LifecycleException; +import org.apache.catalina.authenticator.AuthenticatorBase; +import org.apache.catalina.authenticator.BasicAuthenticator; +import org.apache.catalina.authenticator.FormAuthenticator; +import org.apache.catalina.authenticator.SSLAuthenticator; +import org.apache.catalina.connector.Request; +import org.apache.catalina.deploy.LoginConfig; + +/** + * @author Endi S. Dewata + */ +public class SSLAuthenticatorWithFallback extends AuthenticatorBase { + + public final static String BASIC_AUTHENTICATOR = "BASIC"; + public final static String FORM_AUTHENTICATOR = "FORM"; + + String fallbackMethod = BASIC_AUTHENTICATOR; + + AuthenticatorBase sslAuthenticator = new SSLAuthenticator(); + AuthenticatorBase fallbackAuthenticator = new BasicAuthenticator(); + + public SSLAuthenticatorWithFallback() { + log("Creating SSL authenticator with fallback"); + } + + @Override + public String getInfo() { + return "SSL authenticator with "+fallbackMethod+" fallback."; + } + + public String getFallbackMethod() { + return fallbackMethod; + } + + public void setFallbackMethod(String fallbackMethod) { + log("Fallback method: "+fallbackMethod); + this.fallbackMethod = fallbackMethod; + + if (BASIC_AUTHENTICATOR.equalsIgnoreCase(fallbackMethod)) { + fallbackAuthenticator = new BasicAuthenticator(); + + } else if (FORM_AUTHENTICATOR.equalsIgnoreCase(fallbackMethod)) { + fallbackAuthenticator = new FormAuthenticator(); + } + + } + + @Override + public boolean authenticate(Request request, HttpServletResponse response, LoginConfig config) throws IOException { + + X509Certificate certs[] = (X509Certificate[]) request.getAttribute(Globals.CERTIFICATES_ATTR); + boolean result; + + if (certs != null && certs.length > 0) { + log("Authenticate with client certificate authentication"); + HttpServletResponseWrapper wrapper = new HttpServletResponseWrapper(response) { + public void setHeader(String name, String value) { + log("SSL auth header: "+name+"="+value); + }; + public void sendError(int code) { + log("SSL auth return code: "+code); + } + }; + result = sslAuthenticator.authenticate(request, wrapper, config); + + } else { + log("Authenticating with "+fallbackMethod+" authentication"); + HttpServletResponseWrapper wrapper = new HttpServletResponseWrapper(response) { + public void setHeader(String name, String value) { + log("Fallback auth header: "+name+"="+value); + }; + public void sendError(int code) { + log("Fallback auth return code: "+code); + } + }; + result = fallbackAuthenticator.authenticate(request, wrapper, config); + } + + if (result) + return true; + + log("Result: "+result); + + StringBuilder value = new StringBuilder(16); + value.append("Basic realm=\""); + if (config.getRealmName() == null) { + value.append(REALM_NAME); + } else { + value.append(config.getRealmName()); + } + value.append('\"'); + response.setHeader(AUTH_HEADER_NAME, value.toString()); + response.sendError(HttpServletResponse.SC_UNAUTHORIZED); + + return false; + } + + @Override + protected String getAuthMethod() { + return HttpServletRequest.CLIENT_CERT_AUTH; + }; + + @Override + public void setContainer(Container container) { + log("Setting container"); + super.setContainer(container); + sslAuthenticator.setContainer(container); + fallbackAuthenticator.setContainer(container); + } + + @Override + protected void initInternal() throws LifecycleException { + log("Initializing authenticators"); + super.initInternal(); + sslAuthenticator.init(); + fallbackAuthenticator.init(); + } + + @Override + public void startInternal() throws LifecycleException { + log("Starting authenticators"); + super.startInternal(); + sslAuthenticator.start(); + fallbackAuthenticator.start(); + } + + @Override + public void stopInternal() throws LifecycleException { + log("Stopping authenticators"); + super.stopInternal(); + sslAuthenticator.stop(); + fallbackAuthenticator.stop(); + } + + public void log(String message) { + System.out.println("SSLAuthenticatorWithFallback: "+message); + } +} -- cgit