AuthenticationManager (Apache JSPWiki 2.11.0.M6 API)

java.lang.Object
- org.apache.wiki.auth.AuthenticationManager

```
public class AuthenticationManager
extends Object
```
Manages authentication activities for a WikiEngine: user login, logout, and credential refreshes. This class uses JAAS to determine how users log in.
The login procedure is protected in addition by a mechanism which prevents a hacker to try and force-guess passwords by slowing down attempts to log in into the same account. Every login attempt is recorded, and stored for a while (currently ten minutes), and each login attempt during that time incurs a penalty of 2^login attempts milliseconds - that is, 10 login attempts incur a login penalty of 1.024 seconds. The delay is currently capped to 20 seconds.

Since:

2.3

Field Summary

Fields
Modifier and Type	Field and Description
`static String`	`COOKIE_AUTHENTICATION_MODULE` The name of the built-in cookie authentication module
`static String`	`COOKIE_MODULE` The name of the built-in cookie assertion module
`protected static Map<String,String>`	`EMPTY_MAP` Empty Map passed to JAAS `doJAASLogin(Class, CallbackHandler, Map)` method.
`protected static org.apache.log4j.Logger`	`log`
`protected Class<? extends LoginModule>`	`m_loginModuleClass` Class (of type LoginModule) to use for custom authentication.
`protected Map<String,String>`	`m_loginModuleOptions` Options passed to `LoginModule.initialize(Subject, CallbackHandler, Map, Map)`; initialized by `initialize(WikiEngine, Properties)`.
`protected static String`	`PREFIX_LOGIN_MODULE_OPTIONS` Prefix for LoginModule options key/value pairs.
`protected static String`	`PROP_ALLOW_COOKIE_ASSERTIONS` If this jspwiki.properties property is `true`, allow cookies to be used to assert identities.
`static String`	`PROP_ALLOW_COOKIE_AUTH` If this jspwiki.properties property is `true`, allow cookies to be used for authentication.
`protected static String`	`PROP_LOGIN_MODULE` The `LoginModule` to use for custom authentication.
`static String`	`PROP_LOGIN_THROTTLING` Whether logins should be throttled to limit brute-forcing attempts.
`static String`	`PROP_STOREIPADDRESS` If this jspwiki.properties property is `true`, logs the IP address of the editor on saving.

Constructor Summary

Constructors
Constructor and Description

AuthenticationManager()

Constructors
Constructor and Description
`AuthenticationManager()`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`addWikiEventListener(WikiEventListener listener)` Registers a WikiEventListener with this instance.
`boolean`	`allowsCookieAssertions()` Determines whether this WikiEngine allows users to assert identities using cookies instead of passwords.
`boolean`	`allowsCookieAuthentication()` Determines whether this WikiEngine allows users to authenticate using cookies instead of passwords.
`protected Set<Principal>`	`doJAASLogin(Class<? extends LoginModule> clazz, CallbackHandler handler, Map<String,String> options)` Instantiates and executes a single JAAS `LoginModule`, and returns a Set of Principals that results from a successful login.
`protected static URL`	`findConfigFile(WikiEngine engine, String name)` Looks up and obtains a configuration file inside the WEB-INF folder of a wiki webapp.
`protected void`	`fireEvent(int type, Principal principal, Object target)` Fires a WikiSecurityEvent of the provided type, Principal and target Object to all registered listeners.
`protected Principal`	`getLoginPrincipal(Set<Principal> principals)` Returns the first Principal in a set that isn't a `Role` or `GroupPrincipal`.
`void`	`initialize(WikiEngine engine, Properties props)` Creates an AuthenticationManager instance for the given WikiEngine and the specified set of properties.
`boolean`	`isContainerAuthenticated()` Returns true if this WikiEngine uses container-managed authentication.
`static boolean`	`isRolePrincipal(Principal principal)` Determines whether the supplied Principal is a "role principal".
`static boolean`	`isUserPrincipal(Principal principal)` Determines whether the supplied Principal is a "user principal".
`boolean`	`login(javax.servlet.http.HttpServletRequest request)` Logs in the user by attempting to populate a WikiSession Subject from a web servlet request by examining the request for the presence of container credentials and user cookies.
`boolean`	`login(WikiSession session, javax.servlet.http.HttpServletRequest request, String username, String password)` Attempts to perform a WikiSession login for the given username/password combination using JSPWiki's custom authentication mode.
`void`	`logout(javax.servlet.http.HttpServletRequest request)` Logs the user out by retrieving the WikiSession associated with the HttpServletRequest and unbinding all of the Subject's Principals, except for `Role.ALL`, `Role.ANONYMOUS`.
`void`	`removeWikiEventListener(WikiEventListener listener)` Un-registers a WikiEventListener with this instance.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - COOKIE_MODULE
```
public static final String COOKIE_MODULE
```
    The name of the built-in cookie assertion module
  - COOKIE_AUTHENTICATION_MODULE
```
public static final String COOKIE_AUTHENTICATION_MODULE
```
    The name of the built-in cookie authentication module
  - PROP_STOREIPADDRESS
```
public static final String PROP_STOREIPADDRESS
```
    If this jspwiki.properties property is true, logs the IP address of the editor on saving.
    
    See Also:
    
    Constant Field Values
  - PROP_ALLOW_COOKIE_AUTH
```
public static final String PROP_ALLOW_COOKIE_AUTH
```
    If this jspwiki.properties property is true, allow cookies to be used for authentication.
    
    See Also:
    
    Constant Field Values
  - PROP_LOGIN_THROTTLING
```
public static final String PROP_LOGIN_THROTTLING
```
    Whether logins should be throttled to limit brute-forcing attempts. Defaults to true.
    
    See Also:
    
    Constant Field Values
  - log
```
protected static final org.apache.log4j.Logger log
```
  - PREFIX_LOGIN_MODULE_OPTIONS
```
protected static final String PREFIX_LOGIN_MODULE_OPTIONS
```
    Prefix for LoginModule options key/value pairs.
    
    See Also:
    
    Constant Field Values
  - PROP_ALLOW_COOKIE_ASSERTIONS
```
protected static final String PROP_ALLOW_COOKIE_ASSERTIONS
```
    If this jspwiki.properties property is true, allow cookies to be used to assert identities.
    
    See Also:
    
    Constant Field Values
  - PROP_LOGIN_MODULE
```
protected static final String PROP_LOGIN_MODULE
```
    The LoginModule to use for custom authentication.
    
    See Also:
    
    Constant Field Values
  - EMPTY_MAP
```
protected static final Map<String,String> EMPTY_MAP
```
    Empty Map passed to JAAS doJAASLogin(Class, CallbackHandler, Map) method.
  - m_loginModuleClass
```
protected Class<? extends LoginModule> m_loginModuleClass
```
    Class (of type LoginModule) to use for custom authentication.
  - m_loginModuleOptions
```
protected Map<String,String> m_loginModuleOptions
```
    Options passed to LoginModule.initialize(Subject, CallbackHandler, Map, Map); initialized by initialize(WikiEngine, Properties).
- Constructor Detail
  - AuthenticationManager
```
public AuthenticationManager()
```
- Method Detail
  - initialize
```
public void initialize(WikiEngine engine,
                       Properties props)
                throws WikiException
```
    Creates an AuthenticationManager instance for the given WikiEngine and the specified set of properties. All initialization for the modules is done here.
    
    Parameters:
    
    engine - the wiki engine
    
    props - the properties used to initialize the wiki engine
    
    Throws:
    
    WikiException - if the AuthenticationManager cannot be initialized
  - isContainerAuthenticated
```
public boolean isContainerAuthenticated()
```
    Returns true if this WikiEngine uses container-managed authentication. This method is used primarily for cosmetic purposes in the JSP tier, and performs no meaningful security function per se. Delegates to WebContainerAuthorizer.isContainerAuthorized(), if used as the external authorizer; otherwise, returns false.
    
    Returns:
    
    true if the wiki's authentication is managed by the container, false otherwise
  - login
```
public boolean login(javax.servlet.http.HttpServletRequest request)
              throws WikiSecurityException
```
    Logs in the user by attempting to populate a WikiSession Subject from a web servlet request by examining the request for the presence of container credentials and user cookies. The processing logic is as follows:
    - If the WikiSession had previously been unauthenticated, check to see if user has subsequently authenticated. To be considered "authenticated," the request must supply one of the following (in order of preference): the container userPrincipal, container remoteUser, or authentication cookie. If the user is authenticated, this method fires event WikiSecurityEvent.LOGIN_AUTHENTICATED with two parameters: a Principal representing the login principal, and the current WikiSession. In addition, if the authorizer is of type WebContainerAuthorizer, this method iterates through the container roles returned by WebContainerAuthorizer.getRoles(), tests for membership in each one, and adds those that pass to the Subject's principal set.
    - If, after checking for authentication, the WikiSession is still Anonymous, this method next checks to see if the user has "asserted" an identity by supplying an assertion cookie. If the user is found to be asserted, this method fires event WikiSecurityEvent.LOGIN_ASSERTED with two parameters: WikiPrincipal(cookievalue), and the current WikiSession.
    - If, after checking for authenticated and asserted status, the WikiSession is still anonymous, this method fires event WikiSecurityEvent.LOGIN_ANONYMOUS with two parameters: WikiPrincipal(remoteAddress), and the current WikiSession
    Parameters:
    
    request - servlet request for this user
    
    Returns:
    
    always returns true (because anonymous login, at least, will always succeed)
    
    Throws:
    
    WikiSecurityException - if the user cannot be logged in for any reason
    
    Since:
    
    2.3
  - login
```
public boolean login(WikiSession session,
                     javax.servlet.http.HttpServletRequest request,
                     String username,
                     String password)
              throws WikiSecurityException
```
    Attempts to perform a WikiSession login for the given username/password combination using JSPWiki's custom authentication mode. In order to log in, the JAAS LoginModule supplied by the WikiEngine property PROP_LOGIN_MODULE will be instantiated, and its LoginModule.initialize(Subject, CallbackHandler, Map, Map) method will be invoked. By default, the UserDatabaseLoginModule class will be used. When the LoginModule's initialize method is invoked, an options Map populated by properties keys prefixed by PREFIX_LOGIN_MODULE_OPTIONS will be passed as a parameter.
    
    Parameters:
    
    session - the current wiki session; may not be null.
    
    request - the user's HTTP request. This parameter may be null, but the configured LoginModule will not have access to the HTTP request in this case.
    
    username - The user name. This is a login name, not a WikiName. In most cases they are the same, but in some cases, they might not be.
    
    password - the password
    
    Returns:
    
    true, if the username/password is valid
    
    Throws:
    
    WikiSecurityException - if the Authorizer or UserManager cannot be obtained
  - logout
```
public void logout(javax.servlet.http.HttpServletRequest request)
```
    Logs the user out by retrieving the WikiSession associated with the HttpServletRequest and unbinding all of the Subject's Principals, except for Role.ALL, Role.ANONYMOUS. is a cheap-and-cheerful way to do it without invoking JAAS LoginModules. The logout operation will also flush the JSESSIONID cookie from the user's browser session, if it was set.
    
    Parameters:
    
    request - the current HTTP request
  - allowsCookieAssertions
```
public boolean allowsCookieAssertions()
```
    Determines whether this WikiEngine allows users to assert identities using cookies instead of passwords. This is determined by inspecting the WikiEngine property PROP_ALLOW_COOKIE_ASSERTIONS.
    
    Returns:
    
    true if cookies are allowed
  - allowsCookieAuthentication
```
public boolean allowsCookieAuthentication()
```
    Determines whether this WikiEngine allows users to authenticate using cookies instead of passwords. This is determined by inspecting the WikiEngine property PROP_ALLOW_COOKIE_AUTH.
    
    Returns:
    
    true if cookies are allowed for authentication
    
    Since:
    
    2.5.62
  - isRolePrincipal
```
public static boolean isRolePrincipal(Principal principal)
```
    Determines whether the supplied Principal is a "role principal".
    
    Parameters:
    
    principal - the principal to test
    
    Returns:
    
    true if the Principal is of type GroupPrincipal or Role, false otherwise
  - isUserPrincipal
```
public static boolean isUserPrincipal(Principal principal)
```
    Determines whether the supplied Principal is a "user principal".
    
    Parameters:
    
    principal - the principal to test
    
    Returns:
    
    false if the Principal is of type GroupPrincipal or Role, true otherwise
  - doJAASLogin
```
protected Set<Principal> doJAASLogin(Class<? extends LoginModule> clazz,
                                     CallbackHandler handler,
                                     Map<String,String> options)
                              throws WikiSecurityException
```
    Instantiates and executes a single JAAS LoginModule, and returns a Set of Principals that results from a successful login. The LoginModule is instantiated, then its LoginModule.initialize(Subject, CallbackHandler, Map, Map) method is called. The parameters passed to initialize is a dummy Subject, an empty shared-state Map, and an options Map the caller supplies.
    
    Parameters:
    
    clazz - the LoginModule class to instantiate
    
    handler - the callback handler to supply to the LoginModule
    
    options - a Map of key/value strings for initializing the LoginModule
    
    Returns:
    
    the set of Principals returned by the JAAS method Subject.getPrincipals()
    
    Throws:
    
    WikiSecurityException - if the LoginModule could not be instantiated for any reason
  - findConfigFile
```
protected static URL findConfigFile(WikiEngine engine,
                                    String name)
```
    Looks up and obtains a configuration file inside the WEB-INF folder of a wiki webapp.
    
    Parameters:
    
    engine - the wiki engine
    
    name - the file to obtain, e.g., jspwiki.policy
    
    Returns:
    
    the URL to the file
  - getLoginPrincipal
```
protected Principal getLoginPrincipal(Set<Principal> principals)
```
    Returns the first Principal in a set that isn't a Role or GroupPrincipal.
    
    Parameters:
    
    principals - the principal set
    
    Returns:
    
    the login principal
  - addWikiEventListener
```
public void addWikiEventListener(WikiEventListener listener)
```
    Registers a WikiEventListener with this instance. This is a convenience method.
    
    Parameters:
    
    listener - the event listener
  - removeWikiEventListener
```
public void removeWikiEventListener(WikiEventListener listener)
```
    Un-registers a WikiEventListener with this instance. This is a convenience method.
    
    Parameters:
    
    listener - the event listener
  - fireEvent
```
protected void fireEvent(int type,
                         Principal principal,
                         Object target)
```
    Fires a WikiSecurityEvent of the provided type, Principal and target Object to all registered listeners.
    
    Parameters:
    
    type - the event type to be fired
    
    principal - the subject of the event, which may be null
    
    target - the changed Object, which may be null
    
    See Also:
    
    WikiSecurityEvent

Class AuthenticationManager

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

COOKIE_MODULE

COOKIE_AUTHENTICATION_MODULE

PROP_STOREIPADDRESS

PROP_ALLOW_COOKIE_AUTH

PROP_LOGIN_THROTTLING

log

PREFIX_LOGIN_MODULE_OPTIONS

PROP_ALLOW_COOKIE_ASSERTIONS

PROP_LOGIN_MODULE

EMPTY_MAP

m_loginModuleClass

m_loginModuleOptions

Constructor Detail

AuthenticationManager

Method Detail

initialize

isContainerAuthenticated

login

login

logout

allowsCookieAssertions

allowsCookieAuthentication

isRolePrincipal

isUserPrincipal

doJAASLogin

findConfigFile

getLoginPrincipal

addWikiEventListener

removeWikiEventListener

fireEvent