org.eclipse.jetty.security.authentication

## Class FormAuthenticator

- java.lang.Object
- - org.eclipse.jetty.security.authentication.LoginAuthenticator
  - - org.eclipse.jetty.security.authentication.FormAuthenticator

- All Implemented Interfaces:
    Authenticator

      public class FormAuthenticator
      extends LoginAuthenticator

  FORM Authenticator.

  This authenticator implements form authentication will use dispatchers to the login page if the `__FORM_DISPATCH` init parameter is set to true. Otherwise it will redirect.

  The form authenticator redirects unauthenticated requests to a log page which should use a form to gather username/password from the user and send them to the /j_security_check URI within the context. FormAuthentication uses `SessionAuthentication` to wrap Authentication results so that they are associated with the session.

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class and Description
    --- | ---
    `static class` | `FormAuthenticator.FormAuthentication` This Authentication represents a just completed Form authentication.
    `protected static class` | `FormAuthenticator.FormRequest`
    `protected static class` | `FormAuthenticator.FormResponse`

    - ### Nested classes/interfaces inherited from interface org.eclipse.jetty.security.Authenticator

      `Authenticator.AuthConfiguration, Authenticator.Factory`

  - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static String` | `__FORM_DISPATCH`
    `static String` | `__FORM_ERROR_PAGE`
    `static String` | `__FORM_LOGIN_PAGE`
    `static String` | `__J_PASSWORD`
    `static String` | `__J_POST`
    `static String` | `__J_SECURITY_CHECK`
    `static String` | `__J_URI`
    `static String` | `__J_USERNAME`

    - ### Fields inherited from class org.eclipse.jetty.security.authentication.LoginAuthenticator

      `_deferred, _identityService, _loginService, SESSION_SECURED`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `FormAuthenticator()`
    `FormAuthenticator(String login, String error, boolean dispatch)`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `String` | `getAuthMethod()`
    `boolean` | `isJSecurityCheck(String uri)`
    `boolean` | `isLoginOrErrorPage(String pathInContext)`
    `boolean` | `secureResponse(javax.servlet.ServletRequest req, javax.servlet.ServletResponse res, boolean mandatory, Authentication.User validatedUser)`
    `void` | `setConfiguration(Authenticator.AuthConfiguration configuration)` Configure the Authenticator
    `Authentication` | `validateRequest(javax.servlet.ServletRequest req, javax.servlet.ServletResponse res, boolean mandatory)` Validate a response

    - ### Methods inherited from class org.eclipse.jetty.security.authentication.LoginAuthenticator

      `getLoginService, renewSessionOnAuthentication`

    - ### Methods inherited from class java.lang.Object

      `clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Field Detail

    - #### __FORM_LOGIN_PAGE

          public static final String __FORM_LOGIN_PAGE

      See Also:
        Constant Field Values

    - #### __FORM_ERROR_PAGE

          public static final String __FORM_ERROR_PAGE

      See Also:
        Constant Field Values

    - #### __FORM_DISPATCH

          public static final String __FORM_DISPATCH

      See Also:
        Constant Field Values

    - #### __J_URI

          public static final String __J_URI

      See Also:
        Constant Field Values

    - #### __J_POST

          public static final String __J_POST

      See Also:
        Constant Field Values

    - #### __J_SECURITY_CHECK

          public static final String __J_SECURITY_CHECK

      See Also:
        Constant Field Values

    - #### __J_USERNAME

          public static final String __J_USERNAME

      See Also:
        Constant Field Values

    - #### __J_PASSWORD

          public static final String __J_PASSWORD

      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### FormAuthenticator

          public FormAuthenticator()

    - #### FormAuthenticator

          public FormAuthenticator(String login,
                           String error,
                           boolean dispatch)

  - ### Method Detail

    - #### setConfiguration

          public void setConfiguration(Authenticator.AuthConfiguration configuration)

      Description copied from interface: `Authenticator`
      Configure the Authenticator
      Specified by:
        `setConfiguration` in interface `Authenticator`
      Overrides:
        `setConfiguration` in class `LoginAuthenticator`
      See Also:
        `LoginAuthenticator.setConfiguration(org.eclipse.jetty.security.Authenticator.AuthConfiguration)`

    - #### getAuthMethod

          public String getAuthMethod()

      Returns:
        The name of the authentication method

    - #### validateRequest

          public Authentication validateRequest(javax.servlet.ServletRequest req,
                                       javax.servlet.ServletResponse res,
                                       boolean mandatory)
                                         throws ServerAuthException

      Description copied from interface: `Authenticator`
      Validate a response
      Parameters:
        `req` - The request
        `res` - The response
        `mandatory` - True if authentication is mandatory.
      Returns:
        An Authentication. If Authentication is successful, this will be a `Authentication.User`. If a response has been sent by the Authenticator (which can be done for both successful and unsuccessful authentications), then the result will implement `Authentication.ResponseSent`. If Authentication is not manditory, then a `Authentication.Deferred` may be returned.
      Throws:
        `ServerAuthException`

    - #### isJSecurityCheck

          public boolean isJSecurityCheck(String uri)

    - #### isLoginOrErrorPage

          public boolean isLoginOrErrorPage(String pathInContext)

    - #### secureResponse

          public boolean secureResponse(javax.servlet.ServletRequest req,
                               javax.servlet.ServletResponse res,
                               boolean mandatory,
                               Authentication.User validatedUser)
                                 throws ServerAuthException

      Returns:
        true if response is secure
      Throws:
        `ServerAuthException`

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