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* Copyright 2004 The Apache Software Foundation
*
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* you may not use this file except in compliance with the License.
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*
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package org.apache.catalina.realm;
import org.apache.catalina.*;
import org.apache.catalina.authenticator.AuthenticatorBase;
import org.apache.catalina.connector.Response;
import org.apache.catalina.core.StandardContext;
import org.apache.catalina.deploy.LoginConfig;
import org.apache.catalina.deploy.SecurityCollection;
import org.apache.catalina.deploy.SecurityConstraint;
import org.apache.catalina.util.HexUtils;
import org.apache.catalina.util.LifecycleSupport;
import org.apache.catalina.util.MD5Encoder;
import org.apache.catalina.util.StringManager;
import javax.management.ObjectName;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import java.io.IOException;
import java.nio.charset.CharacterCodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.Principal;
import java.security.cert.X509Certificate;
import java.text.SimpleDateFormat;
import java.util.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.sun.enterprise.util.Utility;
// END SJSWS 6324431
/**
* Simple implementation of <b>Realm</b> that reads an XML file to configure
* the valid users, passwords, and roles. The file format (and default file
* location) are identical to those currently supported by Tomcat 3.X.
*
* @author Craig R. McClanahan
* @version $Revision: 1.14 $ $Date: 2007/04/18 17:27:23 $
*/
public abstract class RealmBase
implements Lifecycle, Realm {
private static Logger log = Logger.getLogger(RealmBase.class.getName());
//START SJSAS 6202703
/**
* "Expires" header always set to Date(1), so generate once only
*/
private static final String DATE_ONE =
(new SimpleDateFormat(Response.HTTP_RESPONSE_DATE_HEADER,
Locale.US)).format(new Date(1));
//END SJSAS 6202703
// ----------------------------------------------------- Instance Variables
/**
* The debugging detail level for this component.
*/
protected int debug = 0;
/**
* The Container with which this Realm is associated.
*/
protected Container container = null;
/**
* Flag indicating whether a check to see if the request is secure is
* required before adding Pragma and Cache-Control headers when proxy
* caching has been disabled
*/
protected boolean checkIfRequestIsSecure = false;
/**
* Digest algorithm used in storing passwords in a non-plaintext format.
* Valid values are those accepted for the algorithm name by the
* MessageDigest class, or <code>null</code> if no digesting should
* be performed.
*/
protected String digest = null;
/**
* The encoding charset for the digest.
*/
protected String digestEncoding = null;
/**
* Descriptive information about this Realm implementation.
*/
protected static final String info =
"org.apache.catalina.realm.RealmBase/1.0";
/**
* The lifecycle event support for this component.
*/
protected LifecycleSupport lifecycle = new LifecycleSupport(this);
/**
* The MessageDigest object for digesting user credentials (passwords).
*/
protected volatile MessageDigest md = null;
/**
* The MD5 helper object for this class.
*/
protected static final MD5Encoder md5Encoder = new MD5Encoder();
/**
* MD5 message digest provider.
*/
protected static volatile MessageDigest md5Helper;
/**
* The string manager for this package.
*/
protected static final StringManager sm =
StringManager.getManager(Constants.Package);
/**
* Has this component been started?
*/
protected boolean started = false;
/**
* The property change support for this component.
*/
protected PropertyChangeSupport support = new PropertyChangeSupport(this);
/**
* Should we validate client certificate chains when they are presented?
*/
protected boolean validate = true;
// ------------------------------------------------------------- Properties
/**
* Return the Container with which this Realm has been associated.
*/
public Container getContainer() {
return (container);
}
/**
* Return the debugging detail level for this component.
*/
public int getDebug() {
return (this.debug);
}
/**
* Set the debugging detail level for this component.
*
* @param debug The new debugging detail level
*/
public void setDebug(int debug) {
this.debug = debug;
}
/**
* Set the Container with which this Realm has been associated.
*
* @param container The associated Container
*/
public void setContainer(Container container) {
Container oldContainer = this.container;
this.container = container;
this.checkIfRequestIsSecure = container.isCheckIfRequestIsSecure();
support.firePropertyChange("container", oldContainer, this.container);
}
/**
* Return the digest algorithm used for storing credentials.
*/
public String getDigest() {
return digest;
}
/**
* Set the digest algorithm used for storing credentials.
*
* @param digest The new digest algorithm
*/
public void setDigest(String digest) {
this.digest = digest;
}
/**
* Returns the digest encoding charset.
*
* @return The charset (may be null) for platform default
*/
public String getDigestEncoding() {
return digestEncoding;
}
/**
* Sets the digest encoding charset.
*
* @param charset The charset (null for platform default)
*/
public void setDigestEncoding(String charset) {
digestEncoding = charset;
}
/**
* Return descriptive information about this Realm implementation and
* the corresponding version number, in the format
* <code><description>/<version></code>.
*/
public String getInfo() {
return info;
}
/**
* Return the "validate certificate chains" flag.
*/
public boolean getValidate() {
return (this.validate);
}
/**
* Set the "validate certificate chains" flag.
*
* @param validate The new validate certificate chains flag
*/
public void setValidate(boolean validate) {
this.validate = validate;
}
// --------------------------------------------------------- Public Methods
/**
* Add a property change listener to this component.
*
* @param listener The listener to add
*/
public void addPropertyChangeListener(PropertyChangeListener listener) {
support.addPropertyChangeListener(listener);
}
/**
* Return the Principal associated with the specified username and
* credentials, if there is one; otherwise return <code>null</code>.
*
* @param username Username of the Principal to look up
* @param credentials Password or other credentials to use in
* authenticating this username
*/
public Principal authenticate(String username, char[] credentials) {
char[] serverCredentials = getPassword(username);
boolean validated ;
if ( serverCredentials == null ) {
validated = false;
} else if(hasMessageDigest()) {
validated = equalsIgnoreCase(serverCredentials, digest(credentials));
} else {
validated = Arrays.equals(serverCredentials, credentials);
}
if(! validated ) {
return null;
}
return getPrincipal(username);
}
/**
* Return the Principal associated with the specified username, which
* matches the digest calculated using the given parameters using the
* method described in RFC 2069; otherwise return <code>null</code>.
*
* @param username Username of the Principal to look up
* @param clientDigest Digest which has been submitted by the client
* @param nOnce Unique (or supposedly unique) token which has been used
* for this request
* @param realm Realm name
* @param md5a2 Second MD5 digest used to calculate the digest :
* MD5(Method + ":" + uri)
*/
public Principal authenticate(String username, char[] clientDigest,
String nOnce, String nc, String cnonce,
String qop, String realm,
char[] md5a2) {
char[] md5a1 = getDigest(username, realm);
if (md5a1 == null)
return null;
int nOnceLength = ((nOnce != null) ? nOnce.length() : 0);
int ncLength = ((nc != null) ? nc.length() : 0);
int cnonceLength = ((cnonce != null) ? cnonce.length() : 0);
int qopLength = ((qop != null) ? qop.length() : 0);
int md5a2Length = ((md5a2 != null) ? md5a2.length : 0);
// serverDigestValue = md5a1:nOnce:nc:cnonce:qop:md5a2
char[] serverDigestValue = new char[md5a1.length + 1 +
nOnceLength + 1 + ncLength + 1 + cnonceLength + 1 +
qopLength + 1 + md5a2Length];
System.arraycopy(md5a1, 0, serverDigestValue, 0, md5a1.length);
int ind = md5a1.length;
serverDigestValue[ind++] = ':';
if (nOnce != null) {
System.arraycopy(nOnce.toCharArray(), 0, serverDigestValue, ind, nOnceLength);
ind += nOnceLength;
}
serverDigestValue[ind++] = ':';
if (nc != null) {
System.arraycopy(nc.toCharArray(), 0, serverDigestValue, ind, ncLength);
ind += ncLength;
}
serverDigestValue[ind++] = ':';
if (cnonce != null) {
System.arraycopy(cnonce.toCharArray(), 0, serverDigestValue, ind, cnonceLength);
ind += cnonceLength;
}
serverDigestValue[ind++] = ':';
if (qop != null) {
System.arraycopy(qop.toCharArray(), 0, serverDigestValue, ind, qopLength);
ind += qopLength;
}
serverDigestValue[ind++] = ':';
if (md5a2 != null) {
System.arraycopy(md5a2, 0, serverDigestValue, ind, md5a2Length);
}
byte[] valueBytes = null;
try {
valueBytes = Utility.convertCharArrayToByteArray(
serverDigestValue, getDigestEncoding());
} catch (CharacterCodingException cce) {
log.log(Level.SEVERE,
"Illegal digestEncoding: " + getDigestEncoding(),
cce);
throw new IllegalArgumentException(cce.getMessage());
}
char[] serverDigest = null;
// Bugzilla 32137
synchronized(md5Helper) {
serverDigest = md5Encoder.encode(md5Helper.digest(valueBytes));
}
if (log.isLoggable(Level.FINE)) {
log.fine("Username:" + username
+ " ClientSigest:" + Arrays.toString(clientDigest) + " nOnce:" + nOnce
+ " nc:" + nc + " cnonce:" + cnonce + " qop:" + qop
+ " realm:" + realm + "md5a2:" + Arrays.toString(md5a2)
+ " Server digest:" + String.valueOf(serverDigest));
}
if (Arrays.equals(serverDigest, clientDigest)) {
return getPrincipal(username);
} else {
return null;
}
}
/**
* Return the Principal associated with the specified chain of X509
* client certificates. If there is none, return <code>null</code>.
*
* @param certs Array of client certificates, with the first one in
* the array being the certificate of the client itself.
*/
public Principal authenticate(X509Certificate certs[]) {
if ((certs == null) || (certs.length < 1))
return (null);
// Check the validity of each certificate in the chain
if (log.isLoggable(Level.FINE))
log.fine("Authenticating client certificate chain");
if (validate) {
for (int i = 0; i < certs.length; i++) {
if (log.isLoggable(Level.FINE))
log.fine("Checking validity for '" +
certs[i].getSubjectDN().getName() + "'");
try {
certs[i].checkValidity();
} catch (Exception e) {
if (log.isLoggable(Level.FINE))
log.log(Level.FINE, "Validity exception", e);
return (null);
}
}
}
// Check the existence of the client Principal in our database
return (getPrincipal(certs[0].getSubjectDN().getName()));
}
/**
* Execute a periodic task, such as reloading, etc. This method will be
* invoked inside the classloading context of this container. Unexpected
* throwables will be caught and logged.
*/
public void backgroundProcess() {
}
/**
* Return the SecurityConstraints configured to guard the request URI for
* this request, or <code>null</code> if there is no such constraint.
*
* @param request Request we are processing
* @param context Context the Request is mapped to
*/
public SecurityConstraint[] findSecurityConstraints(
HttpRequest request, Context context) {
return findSecurityConstraints(
request.getRequestPathMB().toString(),
((HttpServletRequest) request.getRequest()).getMethod(),
context);
}
/**
* Gets the security constraints configured by the given context
* for the given request URI and method.
*
* @param uri the request URI (minus the context Path)
* @param method the request method
* @param context the context
*
* @return the security constraints configured by the given context
* for the given request URI and method, or null
*/
public SecurityConstraint[] findSecurityConstraints(
String uri, String method, Context context) {
ArrayList<SecurityConstraint> results = null;
// Are there any defined security constraints?
if (!context.hasConstraints()) {
if (log.isLoggable(Level.FINE))
log.fine(" No applicable constraints defined");
return (null);
}
// START SJSWS 6324431
String origUri = uri;
boolean caseSensitiveMapping =
((StandardContext)context).isCaseSensitiveMapping();
if (uri != null && !caseSensitiveMapping) {
uri = uri.toLowerCase(Locale.ENGLISH);
}
// END SJSWS 6324431
boolean found = false;
List<SecurityConstraint> constraints = context.getConstraints();
Iterator<SecurityConstraint> i = constraints.iterator();
while (i.hasNext()) {
SecurityConstraint constraint = i.next();
SecurityCollection[] collection = constraint.findCollections();
// If collection is null, continue to avoid an NPE
// See Bugzilla 30624
if (collection == null) {
continue;
}
if (log.isLoggable(Level.FINEST)) {
/* SJSWS 6324431
log.trace(" Checking constraint '" + constraints[i] +
"' against " + method + " " + uri + " --> " +
constraints[i].included(uri, method));
*/
// START SJSWS 6324431
log.finest("Checking constraint '" + constraint +
"' against " + method + " " + origUri +
" --> " +
constraint.included(uri, method,
caseSensitiveMapping));
// END SJSWS 6324431
}
/* SJSWS 6324431
if (log.isDebugEnabled() && constraints[i].included(
uri, method)) {
log.debug(" Matched constraint '" + constraints[i] +
"' against " + method + " " + uri);
}
*/
// START SJSWS 6324431
if (log.isLoggable(Level.FINE)
&& constraint.included(uri, method,
caseSensitiveMapping)) {
log.fine(" Matched constraint '" + constraint +
"' against " + method + " " + origUri);
}
// END SJSWS 6324431
for (int j=0; j < collection.length; j++){
String[] patterns = collection[j].findPatterns();
// If patterns is null, continue to avoid an NPE
// See Bugzilla 30624
if ( patterns == null) {
continue;
}
for(int k=0; k < patterns.length; k++) {
/* SJSWS 6324431
if(uri.equals(patterns[k])) {
*/
// START SJSWS 6324431
String pattern = caseSensitiveMapping ? patterns[k] :
patterns[k].toLowerCase(Locale.ENGLISH);
if (uri != null && uri.equals(pattern)) {
// END SJSWS 6324431
found = true;
if(collection[j].findMethod(method)) {
if(results == null) {
results = new ArrayList<SecurityConstraint>();
}
results.add(constraint);
}
}
}
}
} // while
if (found) {
return resultsToArray(results);
}
int longest = -1;
i = constraints.iterator();
while (i.hasNext()) {
SecurityConstraint constraint = i.next();
SecurityCollection [] collection =
constraint.findCollections();
// If collection is null, continue to avoid an NPE
// See Bugzilla 30624
if ( collection == null) {
continue;
}
if (log.isLoggable(Level.FINEST)) {
/* SJSWS 6324431
log.trace(" Checking constraint '" + constraints[i] +
"' against " + method + " " + uri + " --> " +
constraints[i].included(uri, method));
*/
// START SJSWS 6324431
log.finest(" Checking constraint '" + constraint +
"' against " + method + " " + origUri +
" --> " +
constraint.included(uri, method,
caseSensitiveMapping));
// END SJSWS 6324431
}
/* SJSWS 6324431
if (log.isDebugEnabled() && constraints[i].included(
uri, method)) {
log.debug(" Matched constraint '" + constraints[i] +
"' against " + method + " " + uri);
}
*/
// START SJSWS 6324431
if (log.isLoggable(Level.FINE) &&
constraint.included(uri, method,
caseSensitiveMapping)) {
log.fine(" Matched constraint '" + constraint +
"' against " + method + " " + origUri);
}
// END SJSWS 6324431
for (int j=0; j < collection.length; j++){
String[] patterns = collection[j].findPatterns();
// If patterns is null, continue to avoid an NPE
// See Bugzilla 30624
if (patterns == null) {
continue;
}
boolean matched = false;
int length = -1;
for (int k=0; k < patterns.length; k++) {
/* SJSWS 6324431
String pattern = patterns[k];
*/
// START SJSWS 6324431
String pattern = caseSensitiveMapping ?
patterns[k]:patterns[k].toLowerCase(Locale.ENGLISH);
// END SJSWS 6324431
if (pattern.startsWith("/") &&
pattern.endsWith("/*") &&
pattern.length() >= longest) {
if (pattern.length() == 2) {
matched = true;
length = pattern.length();
} else if (uri != null
&& (pattern.regionMatches(
0,uri,0,pattern.length()-1)
|| (pattern.length()-2 == uri.length()
&& pattern.regionMatches(
0,uri,0,pattern.length()-2)))) {
matched = true;
length = pattern.length();
}
}
}
if (matched) {
found = true;
if (length > longest) {
if (results != null) {
results.clear();
}
longest = length;
}
if (collection[j].findMethod(method)) {
if (results == null) {
results = new ArrayList<SecurityConstraint>();
}
results.add(constraint);
}
}
}
} // while
if (found) {
return resultsToArray(results);
}
i = constraints.iterator();
while (i.hasNext()) {
SecurityConstraint constraint = i.next();
SecurityCollection[] collection = constraint.findCollections();
// If collection is null, continue to avoid an NPE
// See Bugzilla 30624
if ( collection == null) {
continue;
}
if (log.isLoggable(Level.FINEST)) {
/* SJSWS 6324431
log.trace(" Checking constraint '" + constraints[i] +
"' against " + method + " " + uri + " --> " +
constraints[i].included(uri, method));
*/
// START SJSWS 6324431
log.finest(" Checking constraint '" + constraint +
"' against " + method + " " + origUri +
" --> " +
constraint.included(uri, method,
caseSensitiveMapping));
// END SJSWS 6324431
}
/* SJSWS 6324431
if (log.isDebugEnabled() && constraints[i].included(
uri, method)) {
log.debug(" Matched constraint '" + constraints[i] +
"' against " + method + " " + uri);
}
*/
// START SJSWS 6324431
if (log.isLoggable(Level.FINE) &&
constraint.included(uri, method,
caseSensitiveMapping)) {
log.fine(" Matched constraint '" + constraint +
"' against " + method + " " + origUri);
}
// END SJSWS 6324431
boolean matched = false;
int pos = -1;
for (int j=0; j < collection.length; j++){
String [] patterns = collection[j].findPatterns();
// If patterns is null, continue to avoid an NPE
// See Bugzilla 30624
if (patterns == null) {
continue;
}
for(int k=0; k < patterns.length && !matched; k++) {
/* SJSWS 6324431
String pattern = patterns[k];
*/
// START SJSWS 6324431
String pattern = caseSensitiveMapping ?
patterns[k]:patterns[k].toLowerCase(Locale.ENGLISH);
// END SJSWS 6324431
if (uri != null && pattern.startsWith("*.")){
int slash = uri.lastIndexOf("/");
int dot = uri.lastIndexOf(".");
if (slash >= 0 && dot > slash &&
dot != uri.length()-1 &&
uri.length()-dot == pattern.length()-1) {
if (pattern.regionMatches(
1,uri,dot,uri.length()-dot)) {
matched = true;
pos = j;
}
}
}
}
}
if (matched) {
found = true;
if (collection[pos].findMethod(method)) {
if(results == null) {
results = new ArrayList<SecurityConstraint>();
}
results.add(constraint);
}
}
} // while
if (found) {
return resultsToArray(results);
}
i = constraints.iterator();
while (i.hasNext()) {
SecurityConstraint constraint = i.next();
SecurityCollection[] collection = constraint.findCollections();
// If collection is null, continue to avoid an NPE
// See Bugzilla 30624
if (collection == null) {
continue;
}
if (log.isLoggable(Level.FINEST)) {
/* SJSWS 6324431
log.trace(" Checking constraint '" + constraints[i] +
"' against " + method + " " + uri + " --> " +
constraints[i].included(uri, method));
*/
// START SJSWS 6324431
log.finest(" Checking constraint '" + constraint +
"' against " + method + " " + origUri +
" --> " +
constraint.included(uri, method,
caseSensitiveMapping));
// END SJSWS 6324431
}
/* SJSWS 6324431
if (log.isDebugEnabled() && constraints[i].included(
uri, method)) {
log.debug(" Matched constraint '" + constraints[i] +
"' against " + method + " " + uri);
}
*/
// START SJSWS 6324431
if (log.isLoggable(Level.FINE) &&
constraint.included(uri, method,
caseSensitiveMapping)) {
log.fine(" Matched constraint '" + constraint +
"' against " + method + " " + origUri);
}
// END SJSWS 6324431
for (int j=0; j < collection.length; j++){
String[] patterns = collection[j].findPatterns();
// If patterns is null, continue to avoid an NPE
// See Bugzilla 30624
if (patterns == null) {
continue;
}
boolean matched = false;
for (int k=0; k < patterns.length && !matched; k++) {
/* SJSWS 6324431
String pattern = patterns[k];
*/
// START SJSWS 6324431
String pattern = caseSensitiveMapping ?
patterns[k]:patterns[k].toLowerCase(Locale.ENGLISH);
// END SJSWS 6324431
if (pattern.equals("/")){
matched = true;
}
}
if (matched) {
if (results == null) {
results = new ArrayList<SecurityConstraint>();
}
results.add(constraint);
}
}
} // while
if (results == null) {
// No applicable security constraint was found
if (log.isLoggable(Level.FINE))
log.fine(" No applicable constraint located");
}
return resultsToArray(results);
}
/**
* Convert an ArrayList to a SecurityContraint [].
*/
private SecurityConstraint [] resultsToArray(ArrayList<SecurityConstraint> results) {
if(results == null) {
return null;
}
SecurityConstraint [] array = new SecurityConstraint[results.size()];
results.toArray(array);
return array;
}
/**
* Perform access control based on the specified authorization constraint.
* Return <code>true</code> if this constraint is satisfied and processing
* should continue, or <code>false</code> otherwise.
*
* @param request Request we are processing
* @param response Response we are creating
* @param constraints Security constraint we are enforcing
* @param context The Context to which client of this class is attached.
*
* @exception IOException if an input/output error occurs
*/
public boolean hasResourcePermission(HttpRequest request,
HttpResponse response,
SecurityConstraint []constraints,
Context context)
throws IOException {
if (constraints == null || constraints.length == 0)
return (true);
// Which user principal have we already authenticated?
Principal principal = ((HttpServletRequest)request.getRequest())
.getUserPrincipal();
for(int i=0; i < constraints.length; i++) {
SecurityConstraint constraint = constraints[i];
String roles[] = constraint.findAuthRoles();
if (roles == null)
roles = new String[0];
if (constraint.getAllRoles())
return (true);
if (log.isLoggable(Level.FINE))
log.fine(" Checking roles " + principal);
if (roles.length == 0) {
if(constraint.getAuthConstraint()) {
/* S1AS 4878272
((HttpServletResponse) response.getResponse()).sendError
(HttpServletResponse.SC_FORBIDDEN,
sm.getString("realmBase.forbidden"));
*/
// BEGIN S1AS 4878272
((HttpServletResponse) response.getResponse()).sendError
(HttpServletResponse.SC_FORBIDDEN);
response.setDetailMessage(sm.getString("realmBase.forbidden"));
// END S1AS 4878272
if (log.isLoggable(Level.FINE)) log.fine("No roles ");
return (false); // No listed roles means no access at all
} else {
if (log.isLoggable(Level.FINE)) {
log.fine("Passing all access");
}
return (true);
}
} else if (principal == null) {
if (log.isLoggable(Level.FINE))
log.fine(" No user authenticated, cannot grant access");
/* S1AS 4878272
((HttpServletResponse) response.getResponse()).sendError
(HttpServletResponse.SC_FORBIDDEN,
sm.getString("realmBase.notAuthenticated"));
*/
// BEGIN S1AS 4878272
((HttpServletResponse) response.getResponse()).sendError
(HttpServletResponse.SC_FORBIDDEN);
response.setDetailMessage(sm.getString("realmBase.notAuthenticated"));
// END S1AS 4878272
return (false);
}
for (int j = 0; j < roles.length; j++) {
if (hasRole(principal, roles[j])) {
if (log.isLoggable(Level.FINE))
log.fine("Role found: " + roles[j]);
return (true);
} else {
if (log.isLoggable(Level.FINE))
log.fine("No role found: " + roles[j]);
}
}
}
// Return a "Forbidden" message denying access to this resource
/* S1AS 4878272
((HttpServletResponse) response.getResponse()).sendError
*/
// BEGIN S1AS 4878272
((HttpServletResponse) response.getResponse()).sendError
(HttpServletResponse.SC_FORBIDDEN);
response.setDetailMessage(sm.getString("realmBase.forbidden"));
// END S1AS 4878272
return (false);
}
//START SJSAS 6232464
/**
* Return <code>true</code> if the specified Principal has the specified
* security role, within the context of this Realm; otherwise return
* <code>false</code>. This method can be overridden by Realm
* implementations. The default implementation is to forward to
* hasRole(Principal principal, String role).
*
* @param request Request we are processing
* @param response Response we are creating
* @param principal Principal for whom the role is to be checked
* @param role Security role to be checked
*/
public boolean hasRole(HttpRequest request,
HttpResponse response,
Principal principal,
String role) {
return hasRole(principal, role);
}
//END SJSAS 6232464
//START SJSAS 6202703
/**
* Checks whether or not authentication is needed.
* Returns an int, one of AUTHENTICATE_NOT_NEEDED, AUTHENTICATE_NEEDED,
* or AUTHENTICATED_NOT_AUTHORIZED.
*
* @param request Request we are processing
* @param response Response we are creating
* @param constraints Security constraint we are enforcing
* @param disableProxyCaching whether or not to disable proxy caching for
* protected resources.
* @param securePagesWithPragma true if we add headers which
* are incompatible with downloading office documents in IE under SSL but
* which fix a caching problem in Mozilla.
* @param ssoEnabled true if sso is enabled
* @exception IOException if an input/output error occurs
*/
public int preAuthenticateCheck(HttpRequest request,
HttpResponse response,
SecurityConstraint[] constraints,
boolean disableProxyCaching,
boolean securePagesWithPragma,
boolean ssoEnabled)
throws IOException {
for(int i=0; i < constraints.length; i++) {
if (constraints[i].getAuthConstraint()) {
disableProxyCaching(request, response, disableProxyCaching, securePagesWithPragma);
return Realm.AUTHENTICATE_NEEDED;
}
}
return Realm.AUTHENTICATE_NOT_NEEDED;
}
/**
* Authenticates the user making this request, based on the specified
* login configuration. Return <code>true</code> if any specified
* requirements have been satisfied, or <code>false</code> if we have
* created a response challenge already.
*
* @param request Request we are processing
* @param response Response we are creating
* @param context The Context to which client of this class is attached.
* @param authentication the current authenticator.
* @exception IOException if an input/output error occurs
*/
public boolean invokeAuthenticateDelegate(HttpRequest request,
HttpResponse response,
Context context,
Authenticator authenticator,
boolean calledFromAuthenticate)
throws IOException {
LoginConfig config = context.getLoginConfig();
return ((AuthenticatorBase) authenticator).authenticate(
request, response, config);
}
/**
* Post authentication for given request and response.
*
* @param request Request we are processing
* @param response Response we are creating
* @param context The Context to which client of this class is attached.
* @exception IOException if an input/output error occurs
*/
public boolean invokePostAuthenticateDelegate(HttpRequest request,
HttpResponse response,
Context context)
throws IOException {
return true;
}
//END SJSAS 6202703
/**
* Return <code>true</code> if the specified Principal has the specified
* security role, within the context of this Realm; otherwise return
* <code>false</code>. This method can be overridden by Realm
* implementations, but the default is adequate when an instance of
* <code>GenericPrincipal</code> is used to represent authenticated
* Principals from this Realm.
*
* @param principal Principal for whom the role is to be checked
* @param role Security role to be checked
*/
public boolean hasRole(Principal principal, String role) {
// Should be overridden in JAASRealm - to avoid pretty inefficient conversions
if ((principal == null) || (role == null) ||
!(principal instanceof GenericPrincipal))
return (false);
GenericPrincipal gp = (GenericPrincipal) principal;
if (!(gp.getRealm() == this)) {
if (log.isLoggable(Level.FINE)) {
log.fine("Different realm " + this + " " + gp.getRealm());// return (false);
}
}
boolean result = gp.hasRole(role);
if (log.isLoggable(Level.FINE)) {
String name = principal.getName();
if (result)
log.fine(sm.getString("realmBase.hasRoleSuccess", name, role));
else
log.fine(sm.getString("realmBase.hasRoleFailure", name, role));
}
return (result);
}
/**
* Enforce any user data constraint required by the security constraint
* guarding this request URI.
*
* @param request Request we are processing
* @param response Response we are creating
* @param constraints Security constraint being checked
*
* @exception IOException if an input/output error occurs
*
* @return <code>true</code> if this constraint was not violated and
* processing should continue, or <code>false</code> if we have created
* a response already
*/
public boolean hasUserDataPermission(HttpRequest request,
HttpResponse response,
SecurityConstraint[] constraints)
throws IOException {
return hasUserDataPermission(request,response,constraints,null,null);
}
/**
* Checks if the given request URI and method are the target of any
* user-data-constraint with a transport-guarantee of CONFIDENTIAL,
* and whether any such constraint is already satisfied.
*
* If <tt>uri</tt> and <tt>method</tt> are null, then the URI and method
* of the given <tt>request</tt> are checked.
*
* If a user-data-constraint exists that is not satisfied, then the
* given <tt>request</tt> will be redirected to HTTPS.
*
* @param request the request that may be redirected
* @param response the response that may be redirected
* @param constraints the security constraints to check against
* @param uri the request URI (minus the context path) to check
* @param method the request method to check
*
* @return true if the request URI and method are not the target of any
* unsatisfied user-data-constraint with a transport-guarantee of
* CONFIDENTIAL, and false if they are (in which case the given request
* will have been redirected to HTTPS)
*/
public boolean hasUserDataPermission(HttpRequest request,
HttpResponse response,
SecurityConstraint[] constraints,
String uri,
String method)
throws IOException {
// Is there a relevant user data constraint?
if (constraints == null || constraints.length == 0) {
if (log.isLoggable(Level.FINE))
log.fine(" No applicable security constraint defined");
return (true);
}
for(int i=0; i < constraints.length; i++) {
SecurityConstraint constraint = constraints[i];
String userConstraint = constraint.getUserConstraint();
if (userConstraint == null) {
if (log.isLoggable(Level.FINE))
log.fine(" No applicable user data constraint defined");
return (true);
}
if (userConstraint.equals(Constants.NONE_TRANSPORT)) {
if (log.isLoggable(Level.FINE))
log.fine(" User data constraint has no restrictions");
return (true);
}
}
// Validate the request against the user data constraint
if (request.getRequest().isSecure()) {
if (log.isLoggable(Level.FINE))
log.fine(" User data constraint already satisfied");
return (true);
}
// Initialize variables we need to determine the appropriate action
HttpServletRequest hrequest = (HttpServletRequest)
request.getRequest();
HttpServletResponse hresponse = (HttpServletResponse)
response.getResponse();
int redirectPort = request.getConnector().getRedirectPort();
// Is redirecting disabled?
if (redirectPort <= 0) {
if (log.isLoggable(Level.FINE))
log.fine(" SSL redirect is disabled");
/* S1AS 4878272
hresponse.sendError
response.sendError
(HttpServletResponse.SC_FORBIDDEN,
hrequest.getRequestURI());
*/
// BEGIN S1AS 4878272
hresponse.sendError(HttpServletResponse.SC_FORBIDDEN);
response.setDetailMessage(hrequest.getRequestURI());
// END S1AS 4878272
return (false);
}
// Redirect to the corresponding SSL port
StringBuilder file = new StringBuilder();
String protocol = "https";
String host = hrequest.getServerName();
// Protocol
file.append(protocol).append("://").append(host);
// Host with port
if(redirectPort != 443) {
file.append(":").append(redirectPort);
}
// URI
file.append(hrequest.getRequestURI());
String requestedSessionId = hrequest.getRequestedSessionId();
if ((requestedSessionId != null) &&
hrequest.isRequestedSessionIdFromURL()) {
String sessionParameterName = ((request.getContext() != null)?
request.getContext().getSessionParameterName() :
Globals.SESSION_PARAMETER_NAME);
file.append(";" + sessionParameterName + "=");
file.append(requestedSessionId);
}
String queryString = hrequest.getQueryString();
if (queryString != null) {
file.append('?');
file.append(queryString);
}
if (log.isLoggable(Level.FINE))
log.fine("Redirecting to " + file.toString());
hresponse.sendRedirect(file.toString());
return (false);
}
/**
* Remove a property change listener from this component.
*
* @param listener The listener to remove
*/
public void removePropertyChangeListener(PropertyChangeListener listener) {
support.removePropertyChangeListener(listener);
}
// ------------------------------------------------------ Lifecycle Methods
/**
* Add a lifecycle event listener to this component.
*
* @param listener The listener to add
*/
public void addLifecycleListener(LifecycleListener listener) {
lifecycle.addLifecycleListener(listener);
}
/**
* Gets the (possibly empty) list of lifecycle listeners associated
* with this Realm.
*/
public List<LifecycleListener> findLifecycleListeners() {
return lifecycle.findLifecycleListeners();
}
/**
* Remove a lifecycle event listener from this component.
*
* @param listener The listener to remove
*/
public void removeLifecycleListener(LifecycleListener listener) {
lifecycle.removeLifecycleListener(listener);
}
/**
* Prepare for the beginning of active use of the public methods of this
* component. This method should be called before any of the public
* methods of this component are utilized. It should also send a
* LifecycleEvent of type START_EVENT to any registered listeners.
*
* @exception LifecycleException if this component detects a fatal error
* that prevents this component from being used
*/
public void start() throws LifecycleException {
// Validate and update our current component state
if (started) {
if (log.isLoggable(Level.INFO)) {
log.info(sm.getString("realmBase.alreadyStarted"));
}
return;
}
lifecycle.fireLifecycleEvent(START_EVENT, null);
started = true;
// Create a MessageDigest instance for credentials, if desired
if (digest != null) {
try {
md = MessageDigest.getInstance(digest);
} catch (NoSuchAlgorithmException e) {
throw new LifecycleException
(sm.getString("realmBase.algorithm", digest), e);
}
}
}
/**
* Gracefully terminate the active use of the public methods of this
* component. This method should be the last one called on a given
* instance of this component. It should also send a LifecycleEvent
* of type STOP_EVENT to any registered listeners.
*
* @exception LifecycleException if this component detects a fatal error
* that needs to be reported
*/
public void stop()
throws LifecycleException {
// Validate and update our current component state
if (!started) {
if (log.isLoggable(Level.INFO)) {
log.info(sm.getString("realmBase.notStarted"));
}
return;
}
lifecycle.fireLifecycleEvent(STOP_EVENT, null);
started = false;
// Clean up allocated resources
md = null;
destroy();
}
public void destroy() {
// no op
}
// ------------------------------------------------------ Protected Methods
/**
* Digest the password using the specified algorithm and
* convert the result to a corresponding hexadecimal string.
* If exception, the plain credentials string is returned.
*
* @param credentials Password or other credentials to use in
* authenticating this username
*/
protected char[] digest(char[] credentials) {
// If no MessageDigest instance is specified, return unchanged
if (hasMessageDigest() == false)
return (credentials);
// Digest the user credentials and return as hexadecimal
synchronized (this) {
try {
md.reset();
byte[] bytes = null;
try {
bytes = Utility.convertCharArrayToByteArray(
credentials, getDigestEncoding());
} catch(CharacterCodingException cce) {
log.log(Level.SEVERE,
"Illegal digestEncoding: " + getDigestEncoding(),
cce);
throw new IllegalArgumentException(cce.getMessage());
}
md.update(bytes);
return (HexUtils.convert(md.digest()));
} catch (Exception e) {
log.log(Level.SEVERE, sm.getString("realmBase.digest"), e);
return (credentials);
}
}
}
protected boolean hasMessageDigest() {
return !(md == null);
}
/**
* Return the digest associated with given principal's user name.
*/
protected char[] getDigest(String username, String realmName) {
if (md5Helper == null) {
try {
md5Helper = MessageDigest.getInstance("MD5");
} catch (NoSuchAlgorithmException e) {
log.log(Level.SEVERE, "Couldn't get MD5 digest: ", e);
throw new IllegalStateException(e.getMessage());
}
}
if (hasMessageDigest()) {
// Use pre-generated digest
return getPassword(username);
}
char[] pwd = getPassword(username);
int usernameLength = ((username != null) ? username.length() : 0);
int realmNameLength = ((realmName != null) ? realmName.length() : 0);
int pwdLength = ((pwd != null) ? pwd.length : 0);
// digestValue = username:realmName:pwd
char[] digestValue = new char[usernameLength + 1 + realmNameLength + 1 + pwdLength];
int ind = 0;
if (username != null) {
System.arraycopy(username.toCharArray(), 0, digestValue, 0, usernameLength);
ind = usernameLength;
}
digestValue[ind++] = ':';
if (realmName != null) {
System.arraycopy(realmName.toCharArray(), 0, digestValue, ind, realmNameLength);
ind += realmNameLength;
}
digestValue[ind++] = ':';
if (pwd != null) {
System.arraycopy(pwd, 0, digestValue, ind, pwdLength);
}
byte[] valueBytes = null;
try {
valueBytes = Utility.convertCharArrayToByteArray(
digestValue, getDigestEncoding());
} catch(CharacterCodingException cce) {
log.log(Level.SEVERE,
"Illegal digestEncoding: " + getDigestEncoding(),
cce);
throw new IllegalArgumentException(cce.getMessage());
}
byte[] digest = null;
// Bugzilla 32137
synchronized(md5Helper) {
digest = md5Helper.digest(valueBytes);
}
return md5Encoder.encode(digest);
}
/**
* Return a short name for this Realm implementation, for use in
* log messages.
*/
protected abstract String getName();
/**
* Return the password associated with the given principal's user name.
*/
protected abstract char[] getPassword(String username);
/**
* Return the Principal associated with the given user name.
*/
protected abstract Principal getPrincipal(String username);
/**
* Log a message on the Logger associated with our Container (if any)
*
* @param message Message to be logged
*/
protected void log(String message) {
org.apache.catalina.Logger logger = null;
String name = null;
if (container != null) {
logger = container.getLogger();
name = container.getName();
}
if (logger != null) {
logger.log(getName()+"[" + name + "]: " + message);
} else {
if (log.isLoggable(Level.INFO)) {
log.info(getName()+"[" + name + "]: " + message);
}
}
}
/**
* Log a message on the Logger associated with our Container (if any)
*
* @param message Message to be logged
* @param t Associated exception
*/
protected void log(String message, Throwable t) {
org.apache.catalina.Logger logger = null;
String name = null;
if (container != null) {
logger = container.getLogger();
name = container.getName();
}
if (logger != null) {
logger.log(getName()+"[" + name + "]: " + message, t,
org.apache.catalina.Logger.WARNING);
} else {
log.log(Level.WARNING, getName()+"[" + name + "]: " + message, t);
}
}
//START SJSAS 6202703
protected void disableProxyCaching(HttpRequest request,
HttpResponse response,
boolean disableProxyCaching,
boolean securePagesWithPragma) {
HttpServletRequest hsrequest = (HttpServletRequest) request.getRequest();
// Make sure that constrained resources are not cached by web proxies
// or browsers as caching can provide a security hole
if (disableProxyCaching
&& !"POST".equalsIgnoreCase(hsrequest.getMethod())
&& (!checkIfRequestIsSecure || !hsrequest.isSecure())) {
HttpServletResponse sresponse =
(HttpServletResponse) response.getResponse();
if (securePagesWithPragma) {
// FIXME: These cause problems with downloading office docs
// from IE under SSL and may not be needed for newer Mozilla
// clients.
sresponse.setHeader("Pragma", "No-cache");
sresponse.setHeader("Cache-Control", "no-cache");
} else {
sresponse.setHeader("Cache-Control", "private");
}
sresponse.setHeader("Expires", DATE_ONE);
}
}
//END SJSAS 6202703
// -------------------- JMX and Registration --------------------
protected String type;
protected String domain;
protected String host;
protected String path;
protected ObjectName oname;
protected ObjectName controller;
public ObjectName getController() {
return controller;
}
public void setController(ObjectName controller) {
this.controller = controller;
}
public ObjectName getObjectName() {
return oname;
}
public String getDomain() {
return domain;
}
public String getType() {
return type;
}
// BEGIN IASRI 4808401, 4934562
/**
* Return an alternate principal from the request if available.
* Tomcat realms do not implement this so always return null as default.
*
* @param req The request object.
* @return Alternate principal or null.
*/
public Principal getAlternatePrincipal(HttpRequest req) {
return null;
}
/**
* Return an alternate auth type from the request if available.
* Tomcat realms do not implement this so always return null as default.
*
* @param req The request object.
* @return Alternate auth type or null.
*/
public String getAlternateAuthType(HttpRequest req) {
return null;
}
// END IASRI 4808401
// BEGIN IASRI 4856062,4918627,4874504
/**
* Set the name of the associated realm.
*
* @param name the name of the realm.
*/
public void setRealmName(String name, String authMethod) {
// DO NOTHING. PRIVATE EXTENSION
}
/**
* Returns the name of the associated realm.
*
* @return realm name or null if not set.
*/
public String getRealmName(){
// DO NOTHING. PRIVATE EXTENSION
return null;
}
// END IASRI 4856062,4918627,4874504
public Principal authenticate(HttpServletRequest hreq) {
throw new UnsupportedOperationException();
}
private boolean equalsIgnoreCase(char[] arr1, char[] arr2) {
if (arr1 == null) {
return (arr2 == null);
} else { // arr1 is not null
if (arr2 == null || arr1.length != arr2.length) {
return false;
}
}
//here, arr1 and arr2 are not null with equal length
boolean result = true;
for (int i = 0; i < arr1.length; i++) {
if (Character.toLowerCase(arr1[i]) != Character.toLowerCase(arr2[i])) {
return false;
}
}
return result;
}
}