org.apache.wiki.auth.UserManager Maven / Gradle / Ivy
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package org.apache.wiki.auth;
import org.apache.wiki.api.core.Context;
import org.apache.wiki.api.core.Session;
import org.apache.wiki.api.engine.Initializable;
import org.apache.wiki.api.exceptions.WikiException;
import org.apache.wiki.auth.user.DuplicateUserException;
import org.apache.wiki.auth.user.UserDatabase;
import org.apache.wiki.auth.user.UserProfile;
import org.apache.wiki.event.WikiEventListener;
import org.apache.wiki.event.WikiEventManager;
import org.apache.wiki.event.WikiSecurityEvent;
import java.security.Principal;
/**
* Provides a facade for obtaining user information.
*
* @since 2.3
*/
public interface UserManager extends Initializable {
/** Message key for the "save profile" message. */
String PROP_DATABASE = "jspwiki.userdatabase";
String JSON_USERS = "users";
/**
* Returns the UserDatabase employed by this Engine. The UserDatabase is lazily initialized by this method, if it does
* not exist yet. If the initialization fails, this method will use the inner class DummyUserDatabase as a default (which
* is enough to get JSPWiki running).
*
* @return the dummy user database
* @since 2.3
*/
UserDatabase getUserDatabase();
/**
* Retrieves the {@link org.apache.wiki.auth.user.UserProfile} for the user in a session. If the user is authenticated, the
* UserProfile returned will be the one stored in the user database; if one does not exist, a new one will be initialized and returned.
* If the user is anonymous or asserted, the UserProfile will always be newly initialized to prevent spoofing of identities.
* If a UserProfile needs to be initialized, its {@link org.apache.wiki.auth.user.UserProfile#isNew()} method will return
* true, and its login name will will be set automatically if the user is authenticated. Note that this method does
* not modify the retrieved (or newly created) profile otherwise; other fields in the user profile may be null.
* If a new UserProfile was created, but its {@link org.apache.wiki.auth.user.UserProfile#isNew()} method returns
* false, this method throws an {@link IllegalStateException}. This is meant as a quality check for UserDatabase providers;
* it should only be thrown if the implementation is faulty.
*
* @param session the session, which may not be null
* @return the user's profile, which will be newly initialized if the user is anonymous or asserted, or if the user cannot be found in
* the user database
*/
UserProfile getUserProfile( Session session );
/**
*
* Saves the {@link org.apache.wiki.auth.user.UserProfile} for the user in a wiki session. This method verifies that a user profile to
* be saved doesn't collide with existing profiles; that is, the login name or full name is already used by another profile. If the
* profile collides, a DuplicateUserException is thrown. After saving the profile, the user database changes are committed,
* and the user's credential set is refreshed; if custom authentication is used, this means the user will be automatically be logged in.
*
*
* When the user's profile is saved successfully, this method fires a {@link WikiSecurityEvent#PROFILE_SAVE} event with the Session
* as the source and the UserProfile as target. For existing profiles, if the user's full name changes, this method also fires a
* "name changed" event ({@link WikiSecurityEvent#PROFILE_NAME_CHANGED}) with the Session as the source and an array containing
* the old and new UserProfiles, respectively. The NAME_CHANGED event allows the GroupManager and PageManager can change
* group memberships and ACLs if needed.
*
*
* Note that Sessions normally attach event listeners to the UserManager, so changes to the profile will automatically cause the
* correct Principals to be reloaded into the current Session's Subject.
*
*
* @param context the wiki context, which may not be null
* @param profile the user profile, which may not be null
* @throws DuplicateUserException if the proposed profile's login name or full name collides with another
* @throws WikiException if the save fails for some reason. If the current user does not have
* permission to save the profile, this will be a {@link org.apache.wiki.auth.WikiSecurityException};
* if if the user profile must be approved before it can be saved, it will be a
* {@link org.apache.wiki.workflow.DecisionRequiredException}. All other WikiException
* indicate a condition that is not normal is probably due to mis-configuration
*/
void setUserProfile( Context context, UserProfile profile ) throws DuplicateUserException, WikiException;
void startUserProfileCreationWorkflow( Context context, UserProfile profile ) throws WikiException;
/**
* Extracts user profile parameters from the HTTP request and populates a UserProfile with them. The UserProfile will either be a
* copy of the user's existing profile (if one can be found), or a new profile (if not). The rules for populating the profile as as
* follows:
*
* - If the
email or password parameter values differ from those in the existing profile, the passed
* parameters override the old values.
* - For new profiles, the user-supplied
fullname parameter is always used; for existing profiles the existing value is
* used, and whatever value the user supplied is discarded. The wiki name is automatically computed by taking the full name and
* extracting all whitespace.
* - In all cases, the created/last modified timestamps of the user's existing or new profile always override whatever values the user
* supplied.
* - If container authentication is used, the login name property of the profile is set to the name of
* {@link org.apache.wiki.api.core.Session#getLoginPrincipal()}. Otherwise, the value of the
loginname parameter is used.
*
*
* @param context the current wiki context
* @return a new, populated user profile
*/
UserProfile parseProfile( Context context );
/**
* Validates a user profile, and appends any errors to the session errors list. If the profile is new, the password will be checked to
* make sure it isn't null. Otherwise, the password is checked for length and that it matches the value of the 'password2' HTTP
* parameter. Note that we have a special case when container-managed authentication is used and the user is not authenticated;
* this will always cause validation to fail. Any validation errors are added to the wiki session's messages collection
* (see {@link org.apache.wiki.api.core.Session#getMessages()}.
*
* @param context the current wiki context
* @param profile the supplied UserProfile
*/
void validateProfile( Context context, UserProfile profile );
/**
* A helper method for returning all of the known WikiNames in this system.
*
* @return An Array of Principals
* @throws WikiSecurityException If for reason the names cannot be fetched
*/
Principal[] listWikiNames() throws WikiSecurityException;
// events processing .......................................................
/**
* Registers a WikiEventListener with this instance. This is a convenience method.
*
* @param listener the event listener
*/
void addWikiEventListener( WikiEventListener listener );
/**
* Un-registers a WikiEventListener with this instance. This is a convenience method.
*
* @param listener the event listener
*/
void removeWikiEventListener( WikiEventListener listener );
/**
* Fires a WikiSecurityEvent of the provided type, Principal and target Object to all registered listeners.
*
* @see org.apache.wiki.event.WikiSecurityEvent
* @param type the event type to be fired
* @param session the wiki session supporting the event
* @param profile the user profile (or array of user profiles), which may be null
*/
default void fireEvent( final int type, final Session session, final Object profile ) {
if( WikiEventManager.isListening( this ) ) {
WikiEventManager.fireEvent( this, new WikiSecurityEvent( session, type, profile ) );
}
}
}