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package com.sun.enterprise.security.acl;
import java.io.Serializable;
import java.lang.reflect.Constructor;
import java.security.Principal;
import java.security.PrivilegedAction;
import java.util.Collections;
import java.util.Enumeration;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
import java.util.logging.*;
import javax.security.auth.Subject;
import com.sun.enterprise.deployment.Application;
import com.sun.enterprise.deployment.BundleDescriptor;
import com.sun.enterprise.deployment.Group;
import com.sun.enterprise.deployment.Role;
import com.sun.enterprise.deployment.RootDeploymentDescriptor;
import com.sun.enterprise.deployment.PrincipalImpl;
import com.sun.enterprise.deployment.interfaces.SecurityRoleMapper;
import com.sun.enterprise.config.serverbeans.Server;
import com.sun.enterprise.config.serverbeans.ServerBeansFactory;
import com.sun.enterprise.config.serverbeans.SecurityService;
import com.sun.enterprise.config.ConfigContext;
import com.sun.enterprise.security.AppservAccessController;
import com.sun.enterprise.server.ApplicationServer;
import com.sun.enterprise.server.ServerContext;
import com.sun.enterprise.Switch;
import com.sun.logging.*;
/** This Object maintains a mapping of users and groups to application
* specific Roles.
* Using this object this mapping information could be maintained and
* queried at a later time. This is a complete rewrite of the previous
* RoleMapper for JACC related changes.
* @author Harpreet Singh
*/
public class RoleMapper implements Serializable, SecurityRoleMapper {
private static Map ROLEMAPPER = new HashMap();
private static final String DEFAULT_ROLE_NAME = "ANYONE";
private static Role defaultRole = null;
private static String defaultRoleName = null;
private String appName;
private final Map<String, Subject> roleToSubject =
new HashMap<String, Subject>();
// default mapper to emulate Servlet default p2r mapping semantics
private String defaultP2RMappingClassName = null;
private DefaultRoleToSubjectMapping defaultRTSM =
new DefaultRoleToSubjectMapping();
/* the following 2 Maps are a copy of roleToSubject.
* This is added as a support for deployment.
* Should think of optimizing this.
*/
private final Map<String, Set<Principal>> roleToPrincipal =
new HashMap<String, Set<Principal>>();
private final Map<String, Set<Group>> roleToGroup =
new HashMap<String, Set<Group>>();
/* The following objects are used to detect conflicts during deployment */
/* .....Mapping of module (or application) that is presently calling
* assignRole(). It is set by the startMappingFor() method.
* After all the subjects have been assigned, stopMappingFor()
* is called and then the mappings can be checked against
* those previously assigned.
*/
private Mapping currentMapping;
// These override roles mapped in submodules.
private Set<Role> topLevelRoles;
// used to identify the application level mapping file
private static final String TOP_LEVEL = "sun-application.xml mapping file";
// used to log a warning only one time
private boolean conflictLogged = false;
// store roles that have a conflict so they are not re-mapped
private Set<Role> conflictedRoles;
/* End conflict detection objects */
private static Logger _logger =
LogDomains.getLogger(LogDomains.SECURITY_LOGGER);
private RoleMapper(String appName) {
this.appName = appName;
Switch sw = Switch.getSwitch();
if (sw.getContainerType() == Switch.EJBWEB_CONTAINER) { // 4735725
initDefaultRole();
}
defaultP2RMappingClassName = getDefaultP2RMappingClassName();
}
private static synchronized void initDefaultRole() {
if(defaultRole == null) {
defaultRoleName = DEFAULT_ROLE_NAME;
try {
ConfigContext configContext =
ApplicationServer.getServerContext().getConfigContext();
assert(configContext != null);
Server configBean =
ServerBeansFactory.getServerBean(configContext);
assert(configBean != null);
SecurityService securityBean =
ServerBeansFactory.getSecurityServiceBean(configContext);
assert(securityBean != null);
defaultRoleName = securityBean.getAnonymousRole();
} catch (Exception e) {
_logger.log(Level.WARNING,
"java_security.anonymous_role_reading_exception",
e);
}
if(_logger.isLoggable(Level.FINE)){
_logger.log(Level.FINE, "Default role is: " + defaultRoleName);
}
defaultRole = new Role(defaultRoleName);
}
}
/** Returns a RoleMapper corresponding to the AppName.
* @param appName Application Name of this RoleMapper.
* @return SecurityRoleMapper for the application
*/
public static RoleMapper getRoleMapper(String appName) {
RoleMapper r = (RoleMapper)ROLEMAPPER.get(appName);
if(r == null){
r = new RoleMapper(appName);
synchronized(RoleMapper.class){
ROLEMAPPER.put(appName,r);
}
}
return r;
}
/** Set a RoleMapper for the application
* @param appName Application or module name
* @param rmap <I>SecurityRoleMapper</I> for the application or the module
*/
public static void setRoleMapper(String appName, SecurityRoleMapper rmap) {
synchronized(RoleMapper.class){
ROLEMAPPER.put(appName, rmap);
}
}
/**
* @param appName Application/module name.
*/
public static void removeRoleMapper(String appName) {
if( ROLEMAPPER.containsKey(appName)){
synchronized(RoleMapper.class){
ROLEMAPPER.remove(appName);
}
}
}
/**
* @return The application/module name for this RoleMapper
*/
public String getName() {
return appName;
}
/**
* @param name The application/module name
*/
public void setName(String name) {
this.appName = name;
}
/**
* @param principal A principal that corresponds to the role
* @param role A role corresponding to this principal
*/
private void addRoleToPrincipal(final Principal principal, String role){
assert roleToSubject != null;
Subject subject = roleToSubject.get(role);
final Subject sub = (subject == null)?new Subject(): subject;
AppservAccessController.doPrivileged(new PrivilegedAction() {
public java.lang.Object run() {
sub.getPrincipals().add(principal);
return null;
}
});
roleToSubject.put(role, sub);
}
/**
* Remove the given role-principal mapping
* @param role, Role object
* @param principal, the principal
*/
public void unassignPrincipalFromRole(Role role, Principal principal){
assert roleToSubject != null;
String mrole = role.getName();
final Subject sub = roleToSubject.get(mrole);
final Principal p = principal;
if (sub != null){
AppservAccessController.doPrivileged(new PrivilegedAction() {
public java.lang.Object run() {
sub.getPrincipals().remove(p);
return null;
}
});
roleToSubject.put(mrole, sub);
}
if (principal instanceof Group) {
Set<Group> groups = roleToGroup.get(mrole);
if (groups != null) {
groups.remove((Group) principal);
roleToGroup.put(mrole, groups);
}
} else {
Set<Principal> principals = roleToPrincipal.get(mrole);
if (principals != null) {
principals.remove(principal);
roleToPrincipal.put(mrole, principals);
}
}
}
// @return true or false depending on activation of
// the mapping via domain.xml.
boolean isDefaultRTSMActivated() {
return (defaultP2RMappingClassName!=null);
}
/**
* Returns the RoleToSubjectMapping for the RoleMapping
* @return Map of role->subject mapping
*/
public Map getRoleToSubjectMapping() {
// this causes the last currentMapping information to be added
checkAndAddMappings();
assert roleToSubject != null;
if (roleToSubject.isEmpty() && isDefaultRTSMActivated()) {
return defaultRTSM;
}
return roleToSubject;
}
// The method that does the work for assignRole().
private void internalAssignRole(Principal p, Role r) {
String role = r.getName();
if(_logger.isLoggable(Level.FINE)){
_logger.log(Level.FINE, "SECURITY:RoleMapper Assigning Role "+ role +
" to "+ p.getName());
}
addRoleToPrincipal(p, role);
if (p instanceof Group) {
Set<Group> groups = roleToGroup.get(role) ;
if(groups == null) {
groups = new HashSet<Group>();
}
groups.add((Group) p);
roleToGroup.put(role, groups);
} else {
Set<Principal> principals = roleToPrincipal.get(role) ;
if(principals == null) {
principals = new HashSet<Principal>();
}
principals.add(p);
roleToPrincipal.put(role, principals);
}
}
/**
* Assigns a Principal to the specified role. This method delegates
* work to internalAssignRole() after checking for conflicts.
* RootDeploymentDescriptor added as a fix for:
* https://glassfish.dev.java.net/issues/show_bug.cgi?id=2475
*
* The first time this is called, a new Mapping object is created
* to store the role mapping information. When called again from
* a different module, the old mapping information is checked and
* stored and a new Mapping object is created.
*
* @param p The principal that needs to be assigned to the role.
* @param r The Role the principal is being assigned to.
* @param rdd The descriptor of the module containing the role mapping
*/
public void assignRole(Principal p, Role r, RootDeploymentDescriptor rdd) {
assert rdd != null;
String callingModuleID = getModuleID(rdd);
if (currentMapping == null) {
currentMapping = new Mapping(callingModuleID);
} else if (!callingModuleID.equals(currentMapping.owner)) {
checkAndAddMappings();
currentMapping = new Mapping(callingModuleID);
}
// when using the top level mapping
if (callingModuleID.equals(TOP_LEVEL) &&
topLevelRoles == null) {
topLevelRoles = new HashSet<Role>();
}
// store principal and role temporarily until stopMappingFor called
currentMapping.addMapping(p, r);
}
/**
* Returns an enumeration of roles for this rolemapper.
*/
public Iterator getRoles() {
assert roleToSubject != null;
return roleToSubject.keySet().iterator(); // All the roles
}
/**
* Returns an enumeration of Groups assigned to the given role
* @param The Role to which the groups are assigned to.
*/
public Enumeration getGroupsAssignedTo(Role r) {
assert roleToGroup != null;
Set<Group> s = roleToGroup.get(r.getName());
if (s == null) {
return Collections.enumeration(Collections.EMPTY_SET);
}
return Collections.enumeration(s);
}
/**
* Returns an enumeration of Principals assigned to the given role
* @param The Role to which the principals are assigned to.
*/
public Enumeration getUsersAssignedTo(Role r) {
assert roleToPrincipal != null;
Set<Principal> s = roleToPrincipal.get(r.getName());
if (s == null) {
return Collections.enumeration(Collections.EMPTY_SET);
}
return Collections.enumeration(s);
}
public void unassignRole(Role r) {
if (r != null){
String role = r.getName();
roleToSubject.remove(role);
roleToPrincipal.remove(role);
roleToGroup.remove(role);
}
}
/**
* @return String. String representation of the RoleToPrincipal Mapping
*/
public String toString() {
StringBuffer s = new StringBuffer("RoleMapper:");
for (Iterator e = this.getRoles(); e.hasNext();) {
String r = (String) e.next();
s.append("\n\tRole (" + r + ") has Principals(");
Subject sub = roleToSubject.get(r);
Iterator it = sub.getPrincipals().iterator();
for(; it.hasNext(); ){
Principal p = (Principal) it.next();
s.append(p.getName()+" ");
}
s.append(")");
}
if(_logger.isLoggable(Level.FINER)){
_logger.log(Level.FINER,s.toString());
}
return s.toString();
}
/** Copy constructor. This is called from the JSR88 implementation.
* This is not stored into the internal rolemapper maps.
*/
public RoleMapper(RoleMapper r){
this.appName = r.getName();
for(Iterator it = r.getRoles();it.hasNext(); ){
String role = (String) it.next();
// recover groups
Enumeration groups = r.getGroupsAssignedTo(new Role(role));
Set<Group> groupsToRole = new HashSet<Group>();
for(;groups.hasMoreElements(); ){
Group gp = (Group) groups.nextElement();
groupsToRole.add(new Group(gp.getName()));
addRoleToPrincipal(gp,role);
}
this.roleToGroup.put(role,groupsToRole);
// recover principles
Enumeration users = r.getUsersAssignedTo(new Role(role));
Set<Principal> usersToRole = new HashSet<Principal>();
for(;users.hasMoreElements(); ){
PrincipalImpl gp = (PrincipalImpl) users.nextElement();
usersToRole.add(new PrincipalImpl(gp.getName()));
addRoleToPrincipal(gp,role);
}
this.roleToPrincipal.put(role,usersToRole);
}
}
/**
* @returns the class name used for default Principal to role mapping
* return null if default P2R mapping is not supported.
*/
static private String getDefaultP2RMappingClassName() {
String className=null;
try {
ServerContext serverContext = ApplicationServer.getServerContext();
if (serverContext != null) {
ConfigContext configContext = serverContext.getConfigContext();
if (configContext != null) {
SecurityService securityService =
ServerBeansFactory.getSecurityServiceBean(configContext);
if (securityService != null &&
securityService.isActivateDefaultPrincipalToRoleMapping()==true) {
className = securityService.getMappedPrincipalClass();
if (className==null || "".equals(className))
className = "com.sun.enterprise.deployment.Group";
}
}
}
if (className==null)
return null;
Class clazz = Class.forName(className);
Class[] argClasses = new Class[] { String.class };
Object[] arg = new Object[] { "anystring" };
Constructor c = clazz.getConstructor(argClasses);
Principal principal = (Principal) c.newInstance(arg);
//verify that this class is a Principal class and has a constructor(string)
return className;
} catch (Exception e) {
_logger.log(Level.SEVERE,"pc.getDefaultP2RMappingClass: " + e);
return null;
}
}
/*
* Only web/ejb BundleDescriptor and Application descriptor objects
* are used for role mapping currently. If other subtypes of
* RootDeploymentDescriptor are used in the future, they should
* be added here.
*/
private String getModuleID(RootDeploymentDescriptor rdd) {
if (rdd instanceof Application) {
return TOP_LEVEL;
} else if (rdd instanceof BundleDescriptor) {
return
((BundleDescriptor) rdd).getModuleDescriptor().getArchiveUri();
} else {
// cannot happen unless glassfish code is changed
throw new AssertionError(rdd.getClass() +
" is not a known descriptor type");
}
}
/*
* For each role in the current mapping:
*
* First check that the role does not already exist in the
* top-level mapping. If it does, then the top-level role mapping
* overrides the current one and we do not need to check if they
* conflict. Just continue with the next role.
*
* If the current mapping is from the top-level file, then
* check to see if the role has already been mapped. If so,
* do not need to check for conflicts. Simply override and
* assign the role.
*
* If the above cases do not apply, check for conflicts
* with roles already set. If there is a conflict, it is
* between two submodules, so the role should be unmapped
* in the existing role mappings.
*
*/
private void checkAndAddMappings() {
if (currentMapping == null) {
return;
}
for (Role r : currentMapping.getRoles()) {
if (topLevelRoles != null && topLevelRoles.contains(r)) {
logConflictWarning();
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Role " + r +
" from module " + currentMapping.owner +
" is being overridden by top-level mapping.");
}
continue;
}
if (currentMapping.owner.equals(TOP_LEVEL)) {
topLevelRoles.add(r);
if (roleToSubject.keySet().contains(r.getName())) {
logConflictWarning();
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE, "Role " + r +
" from top-level mapping descriptor is " +
"overriding existing role in sub module.");
}
unassignRole(r);
}
} else if (roleConflicts(r, currentMapping.getPrincipals(r))) {
// detail message already logged
logConflictWarning();
unassignRole(r);
continue;
}
// no problems, so assign role
for (Principal p : currentMapping.getPrincipals(r)) {
internalAssignRole(p, r);
}
}
// clear current mapping
currentMapping = null;
}
private boolean roleConflicts(Role r, Set<Principal> ps) {
// check to see if there has been a previous conflict
if (conflictedRoles != null && conflictedRoles.contains(r)) {
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE,
"Role " + r + " from module " + currentMapping.owner +
" has already had a conflict with other modules.");
}
return true;
}
// if role not previously mapped, no conflict
if (!roleToSubject.keySet().contains(r.getName())) {
return false;
}
// check number of mappings first
int targetNumPrin = ps.size();
int actualNum = 0;
Set<Principal> pSet = roleToPrincipal.get(r.getName());
Set<Group> gSet = roleToGroup.get(r.getName());
actualNum += (pSet == null) ? 0 : pSet.size();
actualNum += (gSet == null) ? 0 : gSet.size();
if (targetNumPrin != actualNum) {
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE,
"Module " + currentMapping.owner +
" has different number of mappings for role " +
r.getName() +
" than other mapping files");
}
if (conflictedRoles == null) {
conflictedRoles = new HashSet<Role>();
}
conflictedRoles.add(r);
return true;
}
// check the principals and groups
boolean fail = false;
for (Principal p : ps) {
if (p instanceof Group) {
if (gSet != null && !gSet.contains((Group) p)) {
fail = true;
}
} else if (pSet != null && !pSet.contains(p)) {
fail = true;
}
if (fail) {
if (_logger.isLoggable(Level.FINE)) {
_logger.log(Level.FINE,
"Role " + r + " in module " + currentMapping.owner +
" is not included in other modules.");
}
if (conflictedRoles == null) {
conflictedRoles = new HashSet<Role>();
}
conflictedRoles.add(r);
return true;
}
}
// no conflicts
return false;
}
private void logConflictWarning() {
if (!conflictLogged) {
_logger.log(Level.WARNING, "java_security.role_mapping_conflict",
getName());
conflictLogged = true;
}
}
/*
* Used to represent the role mapping of a single
* descriptor file.
*/
private static class Mapping implements Serializable {
private final String owner;
private final Map<Role, Set<Principal>> roleMap;
Mapping(String owner) {
this.owner = owner;
roleMap = new HashMap<Role, Set<Principal>>();
}
void addMapping(Principal p, Role r) {
Set<Principal> pSet = roleMap.get(r);
if (pSet == null) {
pSet = new HashSet<Principal>();
roleMap.put(r, pSet);
}
pSet.add(p);
}
Set<Role> getRoles() {
return roleMap.keySet();
}
Set<Principal> getPrincipals(Role r) {
return roleMap.get(r);
}
}
class DefaultRoleToSubjectMapping extends HashMap {
private HashMap roleMap = new HashMap();
DefaultRoleToSubjectMapping() {
super();
}
Principal getSameNamedPrincipal(String roleName) {
try {
Class clazz = Class.forName(defaultP2RMappingClassName);
Class[] argClasses = new Class[] { String.class };
Object[] arg = new Object[] { new String(roleName) };
Constructor c = clazz.getConstructor(argClasses);
Principal principal = (Principal) c.newInstance(arg);
return principal;
} catch (Exception e) {
_logger.log(Level.SEVERE,"rm.getSameNamedPrincipal", new Object[]{roleName, e});
throw new RuntimeException("Unable to get principal by default p2r mapping");
}
}
public Object get(Object key) {
assert key instanceof String;
synchronized (roleMap) {
Subject s = (Subject)roleMap.get(key);
if (s == null && key instanceof String) {
final Subject fs = new Subject();
final String roleName = (String) key;
AppservAccessController.doPrivileged(new PrivilegedAction() {
public java.lang.Object run() {
fs.getPrincipals().add(getSameNamedPrincipal(roleName));
return null;
}
});
roleMap.put(key,fs);
s = fs;
}
return s;
}
}
}
}
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