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// Portions Copyright 2018-2022 Payara Foundation and/or its affiliates
// Payara Foundation and/or its affiliates elects to include this software in this distribution under the GPL Version 2 license
package com.sun.enterprise.iiop.security;
import com.sun.corba.ee.org.omg.CSI.AuthorizationElement;
import com.sun.corba.ee.org.omg.CSI.EstablishContext;
import com.sun.corba.ee.org.omg.CSI.GSS_NT_ExportedNameHelper;
import com.sun.corba.ee.org.omg.CSI.IdentityToken;
import com.sun.corba.ee.org.omg.CSI.MTCompleteEstablishContext;
import com.sun.corba.ee.org.omg.CSI.MTContextError;
import com.sun.corba.ee.org.omg.CSI.SASContextBody;
import com.sun.corba.ee.org.omg.CSI.SASContextBodyHelper;
import com.sun.corba.ee.org.omg.CSI.X501DistinguishedNameHelper;
import com.sun.corba.ee.org.omg.CSI.X509CertificateChainHelper;
import com.sun.corba.ee.org.omg.CSIIOP.CompoundSecMech;
import com.sun.enterprise.common.iiop.security.AnonCredential;
import com.sun.enterprise.common.iiop.security.GSSUPName;
import com.sun.enterprise.common.iiop.security.SecurityContext;
import com.sun.enterprise.security.auth.login.DistinguishedPrincipalCredential;
import com.sun.enterprise.security.auth.login.common.PasswordCredential;
import com.sun.enterprise.security.auth.login.common.X509CertificateCredential;
import com.sun.enterprise.util.LocalStringManagerImpl;
import com.sun.logging.LogDomains;
import org.glassfish.enterprise.iiop.api.GlassFishORBHelper;
import org.omg.CORBA.Any;
import org.omg.CORBA.ORB;
import org.omg.IOP.Codec;
import org.omg.IOP.ServiceContext;
import org.omg.PortableInterceptor.ClientRequestInfo;
import org.omg.PortableInterceptor.ClientRequestInterceptor;
import org.omg.PortableInterceptor.ForwardRequest;
import org.omg.PortableInterceptor.LOCATION_FORWARD;
import org.omg.PortableInterceptor.SUCCESSFUL;
import org.omg.PortableInterceptor.SYSTEM_EXCEPTION;
import org.omg.PortableInterceptor.TRANSPORT_RETRY;
import org.omg.PortableInterceptor.USER_EXCEPTION;
import javax.security.auth.x500.X500Principal;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.util.Iterator;
import java.util.Set;
import java.util.logging.Level;
import static java.util.Arrays.asList;
/**
* This class implements a client side security request interceptor for CSIV2. It is used to send
* and receive the service context in a service context element in the service context list in an
* IIOP header.
*
*
*/
public class SecClientRequestInterceptor extends org.omg.CORBA.LocalObject implements ClientRequestInterceptor {
/**
*
*/
private static final long serialVersionUID = 1L;
private static java.util.logging.Logger _logger = null;
static {
_logger = LogDomains.getLogger(SecClientRequestInterceptor.class, LogDomains.SECURITY_LOGGER);
}
private static LocalStringManagerImpl localStrings = new LocalStringManagerImpl(SecClientRequestInterceptor.class);
private String name; // name of interceptor
/**
* prname (name + "::") is name of interceptor used for logging purposes. It is only used in the
* call to Logger.methodentry() in this file. Its purpose is to identify the interceptor name
*/
private String prname;
private Codec codec; // used for marshalling
// private ORB orb;
// private SecurityService secsvc;
private GlassFishORBHelper orbHelper;
private SecurityContextUtil secContextUtil;
/**
* Hard code the value of 15 for SecurityAttributeService until it is defined in IOP.idl.
* sc.context_id = SecurityAttributeService.value;
*/
protected static final int SECURITY_ATTRIBUTE_SERVICE_ID = 15;
public SecClientRequestInterceptor(String name, Codec codec) {
this.name = name;
this.codec = codec;
this.prname = name + "::";
orbHelper = Lookups.getGlassFishORBHelper();
secContextUtil = Lookups.getSecurityContextUtil();
}
@Override
public String name() {
return name;
}
/**
* Retrieves a single credential from a credset for the specified class. It also performs some
* semantic checking and logging.
*
* A null is returned if semantic checking fails.
*/
private java.lang.Object getCred(Set credset, Class c) {
java.lang.Object cred = null; // return value
String clsname = c.getName();
/* check that there is only instance of a credential in the subject */
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Checking for a single instance of class in subject");
_logger.log(Level.FINE, " Classname = " + clsname);
}
if (credset.size() != 1) {
if (_logger.isLoggable(Level.SEVERE))
_logger.log(Level.SEVERE, "iiop.multiple_credset",
new java.lang.Object[] { Integer.valueOf(credset.size()), clsname });
throw new SecurityException(
localStrings.getLocalString("secclientreqinterceptor.inv_credlist_size", "Credential list size is not 1."));
}
Iterator iter = credset.iterator();
while (iter.hasNext())
cred = iter.next();
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE, "Verified single instance of class ( " + clsname + " )");
return cred;
}
/**
* Returns a client authentication token for the PasswordCredential in the subject. The client
* authentication token is cdr encoded.
*/
private byte[] createAuthToken(java.lang.Object cred, Class cls, ORB orb, CompoundSecMech mech) throws Exception {
byte[] gsstoken = {}; // GSS token
if (PasswordCredential.class.isAssignableFrom(cls)) {
_logger.log(Level.FINE, "Constructing a PasswordCredential client auth token");
/* Generate mechanism specific GSS token for the GSSUP mechanism */
PasswordCredential pwdcred = (PasswordCredential) cred;
GSSUPToken tok = GSSUPToken.getClientSideInstance(orb, codec, pwdcred, mech);
gsstoken = tok.getGSSToken();
}
return gsstoken;
}
/**
* create and return an identity token from the credential. The identity token is cdr encoded.
*/
private IdentityToken createIdToken(java.lang.Object cred, Class cls, ORB orb) throws Exception {
IdentityToken idtok = null;
// byte[] cdrval ; // CDR encoding buffer
Any any = orb.create_any();
idtok = new IdentityToken();
if (X500Principal.class.isAssignableFrom(cls)) {
_logger.log(Level.FINE, "Constructing an X500 DN Identity Token");
X500Principal credname = (X500Principal) cred;
X501DistinguishedNameHelper.insert(any, credname.getEncoded());
/* IdentityToken with CDR encoded X500 principal */
idtok.dn(codec.encode_value(any));
} else if (X509CertificateCredential.class.isAssignableFrom(cls)) {
_logger.log(Level.FINE, "Constructing an X509 Certificate Chain Identity Token");
/* create a DER encoding */
X509CertificateCredential certcred = (X509CertificateCredential) cred;
X509Certificate[] certchain = certcred.getX509CertificateChain();
_logger.log(Level.FINE, "Certchain length = " + certchain.length);
byte[] certBytes = CertificateFactory.getInstance("X.509")
.generateCertPath(asList(certchain))
.getEncoded();
X509CertificateChainHelper.insert(any, certBytes);
/* IdentityToken with CDR encoded certificate chain */
idtok.certificate_chain(codec.encode_value(any));
} else if (AnonCredential.class.isAssignableFrom(cls)) {
_logger.log(Level.FINE, "Constructing an Anonymous Identity Token");
idtok.anonymous(true);
} else if (GSSUPName.class.isAssignableFrom(cls)) {
/* GSSAPI Exported name */
_logger.log(Level.FINE, "Constructing a GSS Exported name Identity Token");
/* create a DER encoding */
GSSUPName gssname = (GSSUPName) cred;
byte[] expname = gssname.getExportedName();
GSS_NT_ExportedNameHelper.insert(any, expname);
/* IdentityToken with CDR encoded GSSUPName */
idtok.principal_name(codec.encode_value(any));
} else if (DistinguishedPrincipalCredential.class.isAssignableFrom(cls)) {
// If authenticated via OIDC rather than any of the above we'll have a DistinguishedPrincipalCredential
_logger.log(Level.FINE,
"Constructing a GSS Exported Name Identity Token from DistinguishedPrincipalCredential");
DistinguishedPrincipalCredential distinguishedPrincipalCredential = (DistinguishedPrincipalCredential) cred;
// Create a DER encoding of the principal name as a GSSUPName - realm is not currently factored into the
// parsing of the principal name from the IdentityToken so is left blank.
GSSUPName gssupName = new GSSUPName(distinguishedPrincipalCredential.getPrincipal().getName(), "");
byte[] expname = gssupName.getExportedName();
GSS_NT_ExportedNameHelper.insert(any, expname);
idtok.principal_name(codec.encode_value(any));
}
return (idtok);
}
/**
* send_request() interception point adds the security context to the service context field.
*/
@Override
public void send_request(ClientRequestInfo ri) throws ForwardRequest {
/**
* CSIV2 level 0 implementation only requires stateless clients. Client context id is therefore
* always set to 0.
*/
long cContextId = 0; // CSIV2 requires type to be long
// XXX: Workaround for non-null connection object ri for local invocation.
ConnectionExecutionContext.removeClientThreadID();
/**
* CSIV2 level 0 implementation does not require any authorization tokens to be sent over the wire.
* So set cAuthzElem to empty.
*/
AuthorizationElement[] cAuthzElem = {};
/* Client identity token to be added to the service context field */
IdentityToken cIdentityToken = null;
/* Client authentication token to be added to the service context field */
byte[] cAuthenticationToken = {};
/* CDR encoded Security Attribute Service element */
byte[] cdr_encoded_saselm = null;
java.lang.Object cred = null; // A single JAAS credential
if (_logger.isLoggable(Level.FINE))
_logger.log(Level.FINE, "++++ Entered " + prname + "send_request" + "()");
SecurityContext secctxt = null; // SecurityContext to be sent
ORB orb = orbHelper.getORB();
org.omg.CORBA.Object effective_target = ri.effective_target();
try {
secctxt = secContextUtil.getSecurityContext(effective_target);
} catch (InvalidMechanismException ime) {
_logger.log(Level.SEVERE, "iiop.sec_context_exception", ime);
throw new RuntimeException(ime.getMessage());
} catch (InvalidIdentityTokenException iite) {
_logger.log(Level.SEVERE, "iiop.runtime_exception", iite);
throw new RuntimeException(iite.getMessage());
}
/**
* In an unprotected invocation, there is nothing to be sent to the service context field. Check for
* this case.
*/
if (secctxt == null) {
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Security context is null (nothing to add to service context)");
}
return;
}
final SecurityContext sCtx = secctxt;
/* Construct an authentication token */
if (secctxt.authcls != null) {
cred = AccessController.doPrivileged(new PrivilegedAction() {
@Override
public java.lang.Object run() {
return getCred(sCtx.subject.getPrivateCredentials(sCtx.authcls), sCtx.authcls);
}
});
try {
SecurityMechanismSelector sms = Lookups.getSecurityMechanismSelector();
ConnectionContext cc = sms.getClientConnectionContext();
CompoundSecMech mech = cc.getMechanism();
cAuthenticationToken = createAuthToken(cred, secctxt.authcls, orb, mech);
} catch (Exception e) {
_logger.log(Level.SEVERE, "iiop.createauthtoken_exception", e);
throw new SecurityException(localStrings.getLocalString("secclientreqinterceptor.err_authtok_create",
"Error while constructing an authentication token."));
}
}
/* Construct an identity token */
if (secctxt.identcls != null) {
cred = getCred(secctxt.subject.getPublicCredentials(secctxt.identcls), secctxt.identcls);
try {
cIdentityToken = createIdToken(cred, secctxt.identcls, orb);
} catch (Exception e) {
_logger.log(Level.SEVERE, "iiop.createidtoken_exception", e);
throw new SecurityException(localStrings.getLocalString("secclientreqinterceptor.err_idtok_create",
"Error while constructing an identity token."));
}
} else {
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Constructing an Absent Identity Token");
}
cIdentityToken = new IdentityToken();
cIdentityToken.absent(true);
}
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Creating an EstablishContext message");
}
EstablishContext ec = new EstablishContext(cContextId, cAuthzElem, cIdentityToken, cAuthenticationToken);
SASContextBody sasctxbody = new SASContextBody();
sasctxbody.establish_msg(ec);
/* CDR encode the SASContextBody */
Any SasAny = orb.create_any();
SASContextBodyHelper.insert(SasAny, sasctxbody);
try {
cdr_encoded_saselm = codec.encode_value(SasAny);
} catch (Exception e) {
_logger.log(Level.SEVERE, "iiop.encode_exception", e);
throw new SecurityException(localStrings.getLocalString("secclientreqinterceptor.err_cdr_encode",
"CDR Encoding error for a SAS context element."));
}
/* add SAS element to service context list */
ServiceContext sc = new ServiceContext();
sc.context_id = SECURITY_ATTRIBUTE_SERVICE_ID;
sc.context_data = cdr_encoded_saselm;
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Adding EstablishContext message to service context list");
}
boolean no_replace = false;
ri.add_request_service_context(sc, no_replace);
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Added EstablishContext message to service context list");
}
}
@Override
public void send_poll(ClientRequestInfo ri) {
}
/**
* set the reply status
*/
private void setreplyStatus(int status, org.omg.CORBA.Object target) {
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Status to be set : " + status);
}
SecurityContextUtil.receivedReply(status, target);
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Invoked receivedReply()");
}
}
/**
* Map the reply status code to a format suitable for J2EE RI.
*
* @param repst reply status from the service context field.
* @return mapped status code
*
*/
private int mapreplyStatus(int repst) {
int status;
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Reply status to be mapped = " + repst);
}
switch (repst) {
case SUCCESSFUL.value:
case USER_EXCEPTION.value:
status = SecurityContextUtil.STATUS_PASSED;
break;
case LOCATION_FORWARD.value:
case TRANSPORT_RETRY.value:
status = SecurityContextUtil.STATUS_RETRY;
break;
case SYSTEM_EXCEPTION.value:
status = SecurityContextUtil.STATUS_FAILED;
break;
default:
status = repst;
/**
* There is currently no mapping defined for any other status codes. So map this is to a
* STATUS_FAILED.
*/
break;
}
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Mapped reply status = " + status);
}
return status;
}
private void handle_null_service_context(ClientRequestInfo ri) {
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "No SAS context element found in service context list");
}
setreplyStatus(SecurityContextUtil.STATUS_PASSED, ri.effective_target());
}
@Override
public void receive_reply(ClientRequestInfo ri) {
ServiceContext sc = null;
int status = -1;
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "++++ Entered " + prname + "receive_reply");
}
/**
* get the service context element from the reply and decode the mesage.
*/
try {
sc = ri.get_reply_service_context(SECURITY_ATTRIBUTE_SERVICE_ID);
if (sc == null) {
handle_null_service_context(ri);
return;
}
} catch (org.omg.CORBA.BAD_PARAM e) {
handle_null_service_context(ri);
return;
} catch (Exception ex) {
_logger.log(Level.SEVERE, "iiop.service_context_exception", ex);
return;
}
Any a;
try {
a = codec.decode_value(sc.context_data, SASContextBodyHelper.type()); // decode the CDR encoding
} catch (Exception e) {
_logger.log(Level.SEVERE, "iiop.decode_exception", e);
throw new SecurityException(localStrings.getLocalString("secclientreqinterceptor.err_cdr_decode",
"CDR Decoding error for SAS context element."));
}
SASContextBody sasctxbody = SASContextBodyHelper.extract(a);
short sasdiscr = sasctxbody.discriminator();
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Received " + SvcContextUtils.getMsgname(sasdiscr) + " message");
}
/**
* Verify that either a CompleteEstablishContext msg or an ContextError message was received.
*/
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Verifying the SAS protocol reply message");
}
/* Check the discriminator value */
if ((sasdiscr != MTCompleteEstablishContext.value) && (sasdiscr != MTContextError.value)) {
_logger.log(Level.SEVERE, "iiop.invalid_reply_message");
throw new SecurityException(localStrings.getLocalString("secclientreqinterceptor.err_not_cecec_msg",
"Reply message not one of CompleteEstablishContext or ContextError."));
}
/* Map the error code */
int st = mapreplyStatus(ri.reply_status());
setreplyStatus(st, ri.effective_target());
}
@Override
public void receive_exception(ClientRequestInfo ri) throws ForwardRequest {
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "++++ Entered " + prname + "receive_exception");
}
}
@Override
public void receive_other(ClientRequestInfo ri) throws ForwardRequest {
}
@Override
public void destroy() {
}
protected GlassFishORBHelper getORBHelper() {
return this.orbHelper;
}
}
