Package uk.ac.ed.epcc.webapp.servlet

Useful Servlet classes.

See: Description

Interface Summary

Interface	Description
CrsfTokenService	An AppContextService to generate CRSF tokens
LogoutListener
RemoteAuthListener<AU extends AppUser>	Interface for Composites which observe external authentications.
ServletService	An AppContextService used to access the servlet environment.
ViewTransitionKey<T>	Interface for Transition keys that can implement bookmarkable non-modifying direct transitions that are safe to access via direct GET URLs.

Class Summary

Class	Description
APISessionServlet	A SessionServlet that will look for person/password parameters in the url/post parameters to perform login if the session is un-authenticated
BadKeyServlet	Servlet to generate the fingerprints of ssh keys forbidden by this server It is unauthenticated as only hashes are published
BounceAuthServlet	An implementation of the IdP end of the remote authentication protocol used by RemoteAuthServlet.
ContainerAuthServlet	Servlet that expects to be authenticated at the container level
CrossCookieComposite	A composite added to a WtmpManager that records cookie values for cross application SSO The cookie data should be of the format id-random-data where id is the id of the Wtmp record.
DefaultCrsfTokenService
DefaultServletService	A default implementation for ServletService for a HTTP servlet application.
EmailChangeRequestServlet	Servlet to handle Email Change requests.
ErrorFilter	Traps uncaught errors and initialises the AppContext.
ErrorFilter.Closer
FileUploadWebappContextListener	ContextListener that ensures threads created by apache commons file upload are shutdown.
HeartbeatServlet	A servlet to trigger timed events from a remote cron job Alternatively if the parameter HeartbeatServlet.run_thread is set to true the heartbeat will be run from a thread at a frequency of HeartbeatServlet.repeat minutes.
LoginServlet<T extends AppUser>	LoginServlet Handles password based logins.
LogServiceWebappContextListener	ContextListener that ensures the LoggerService is is correctly configured on application start and shutdown on application finish.
MultiPartServletService	A ServletService that supports MultiPart form content via tha apache fileupload libraries.
NullCrsfTokenService	A CrsfTokenService that disables the check.
PartStreamData
PasswordChangeRequestServlet<A extends AppUser>	Servlet to handle web password resets.
QRServlet	Servlet to generate a QRCode This is not authenticated but may use the HttpSession
RegisterServlet	Register first time visitors
RemoteAuthServlet	This servlet is to support authentication from the container.
RequestMimeStreamData
ServeDataServlet	Servlet to serve ServeData objects Note this has to work for externally authenticated sessions as well as logged in sessions
Servlet3MultiPartServletService	A ServletService that supports MultiPart form content via request methods introduced in the Servlet3.0 spec To support earlier servlet versions there is a version that uses the apache fileupload library instead Note this will only work if the servlet has the @MultiPartConfig annotation or you are using tomcat with the allowCasualMultipartParsing attribute set to true in the Context.
ServletFormResultVisitor
ServletTransitionVisitor<K,T>
SessionServlet	abstract servlet class that does the basic authentication.
ShortcutServletTransitionVisitor<K,T>	A cut-down version of the ServletTransitionVisitor that generates those FormResults that can be generated without taking a lock, for example the redirect to the form jsp.
SignupServlet	Deprecated
StaticServlet	This servlet serves static content from a location outside the application install tree.
StaticServlet.ExistFilter
TransitionServlet<K,T>	Servlet to do generic transitions.
TransitionServlet.GetIDVisitor<T,K>
TransitionServlet.GetTargetVisitor<T,K>
UserServlet<T extends AppUser>	A servlet to allow a registered user to manage their identity.
WebappContextListener	A ContextListener that tries to avoid the PermGen problem by unregistering the DB drivers when an Application is unloaded.
WebappServlet	webappServlet Base class for servlets in the web application, it hold generally useful methods for use by all servlets
WtmpManager	Table to track application logins

Package uk.ac.ed.epcc.webapp.servlet Description

Useful Servlet classes. Mostly abstract classes extended by actual web applications or generic servlets that can be used in multiple applications. This package also contains sub-classes of standard utility classes that have been extended to add behaviour specific to the servlet environment.