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Java Source Code / Java Documentation » Sevlet Container » tomcat catalina » org.apache.catalina 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


org.apache.catalina.Realm

All known Subclasses:   org.apache.catalina.realm.RealmBase,  org.apache.catalina.realm.JAASMemoryLoginModule,
Realm
public interface Realm (Code)
A Realm is a read-only facade for an underlying security realm used to authenticate individual users, and identify the security roles associated with those users. Realms can be attached at any Container level, but will typically only be attached to a Context, or higher level, Container.
author:
   Craig R. McClanahan
version:
   $Revision: 1.8 $ $Date: 2004/05/26 15:28:28 $




Method Summary
public  voidaddPropertyChangeListener(PropertyChangeListener listener)
     Add a property change listener to this component.
public  Principalauthenticate(String username, String credentials)
     Return the Principal associated with the specified username and credentials, if there is one; otherwise return null.
public  Principalauthenticate(String username, byte[] credentials)
     Return the Principal associated with the specified username and credentials, if there is one; otherwise return null.
public  Principalauthenticate(String username, String digest, String nonce, String nc, String cnonce, String qop, String realm, String md5a2)
     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 null.
public  Principalauthenticate(X509Certificate certs)
     Return the Principal associated with the specified chain of X509 client certificates.
public  SecurityConstraint[]findSecurityConstraints(HttpRequest request, Context context)
     Return the SecurityConstraints configured to guard the request URI for this request, or null if there is no such constraint.
public  ContainergetContainer()
     Return the Container with which this Realm has been associated.
public  StringgetInfo()
     Return descriptive information about this Realm implementation and the corresponding version number, in the format <description>/<version>.
public  booleanhasResourcePermission(HttpRequest request, HttpResponse response, SecurityConstraint[] constraint, Context context)
     Perform access control based on the specified authorization constraint.
public  booleanhasRole(Principal principal, String role)
     Return true if the specified Principal has the specified security role, within the context of this Realm; otherwise return false.
public  booleanhasUserDataPermission(HttpRequest request, HttpResponse response, SecurityConstraint[] constraint)
     Enforce any user data constraint required by the security constraint guarding this request URI.
public  voidremovePropertyChangeListener(PropertyChangeListener listener)
     Remove a property change listener from this component.
public  voidsetContainer(Container container)
     Set the Container with which this Realm has been associated.



Method Detail
addPropertyChangeListener
public void addPropertyChangeListener(PropertyChangeListener listener)(Code)
Add a property change listener to this component.
Parameters:
  listener - The listener to add



authenticate
public Principal authenticate(String username, String credentials)(Code)
Return the Principal associated with the specified username and credentials, if there is one; otherwise return null.
Parameters:
  username - Username of the Principal to look up
Parameters:
  credentials - Password or other credentials to use inauthenticating this username



authenticate
public Principal authenticate(String username, byte[] credentials)(Code)
Return the Principal associated with the specified username and credentials, if there is one; otherwise return null.
Parameters:
  username - Username of the Principal to look up
Parameters:
  credentials - Password or other credentials to use inauthenticating this username



authenticate
public Principal authenticate(String username, String digest, String nonce, String nc, String cnonce, String qop, String realm, String md5a2)(Code)
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 null.
Parameters:
  username - Username of the Principal to look up
Parameters:
  digest - Digest which has been submitted by the client
Parameters:
  nonce - Unique (or supposedly unique) token which has been usedfor this request
Parameters:
  realm - Realm name
Parameters:
  md5a2 - Second MD5 digest used to calculate the digest :MD5(Method + ":" + uri)



authenticate
public Principal authenticate(X509Certificate certs)(Code)
Return the Principal associated with the specified chain of X509 client certificates. If there is none, return null.
Parameters:
  certs - Array of client certificates, with the first one inthe array being the certificate of the client itself.



findSecurityConstraints
public SecurityConstraint[] findSecurityConstraints(HttpRequest request, Context context)(Code)
Return the SecurityConstraints configured to guard the request URI for this request, or null if there is no such constraint.
Parameters:
  request - Request we are processing



getContainer
public Container getContainer()(Code)
Return the Container with which this Realm has been associated.



getInfo
public String getInfo()(Code)
Return descriptive information about this Realm implementation and the corresponding version number, in the format <description>/<version>.



hasResourcePermission
public boolean hasResourcePermission(HttpRequest request, HttpResponse response, SecurityConstraint[] constraint, Context context) throws IOException(Code)
Perform access control based on the specified authorization constraint. Return true if this constraint is satisfied and processing should continue, or false otherwise.
Parameters:
  request - Request we are processing
Parameters:
  response - Response we are creating
Parameters:
  constraint - Security constraint we are enforcing
Parameters:
  context - The Context to which client of this class is attached.
exception:
  IOException - if an input/output error occurs



hasRole
public boolean hasRole(Principal principal, String role)(Code)
Return true if the specified Principal has the specified security role, within the context of this Realm; otherwise return false.
Parameters:
  principal - Principal for whom the role is to be checked
Parameters:
  role - Security role to be checked



hasUserDataPermission
public boolean hasUserDataPermission(HttpRequest request, HttpResponse response, SecurityConstraint[] constraint) throws IOException(Code)
Enforce any user data constraint required by the security constraint guarding this request URI. Return true if this constraint was not violated and processing should continue, or false if we have created a response already.
Parameters:
  request - Request we are processing
Parameters:
  response - Response we are creating
Parameters:
  constraint - Security constraint being checked
exception:
  IOException - if an input/output error occurs



removePropertyChangeListener
public void removePropertyChangeListener(PropertyChangeListener listener)(Code)
Remove a property change listener from this component.
Parameters:
  listener - The listener to remove



setContainer
public void setContainer(Container container)(Code)
Set the Container with which this Realm has been associated.
Parameters:
  container - The associated Container



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