io.vertx.ext.web.handler

## Interface CSRFHandler

- All Superinterfaces:
    Handler<RoutingContext>

      public interface CSRFHandler
      extends Handler<RoutingContext>

  This handler adds a CSRF token to requests which mutate state. In order change the state a (XSRF-TOKEN) cookie is set with a unique token, that is expected to be sent back in a (X-XSRF-TOKEN) header. The behavior is to check the request body header and cookie for validity. This Handler requires session support, thus should be added somewhere below Session and Body handlers.
  Author:
    Paulo Lopes

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static String` | `DEFAULT_COOKIE_NAME`
    `static String` | `DEFAULT_HEADER_NAME`

  - ### Method Summary

    All Methods Static Methods Instance Methods Abstract Methods Default Methods
    Modifier and Type | Method and Description
    --- | ---
    `static CSRFHandler` | `create(String secret)` Instantiate a new CSRFHandlerImpl with a secret
    `CSRFHandler` | `setCookieName(String name)` Set the cookie name.
    `CSRFHandler` | `setHeaderName(String name)` Set the header name.
    `CSRFHandler` | `setNagHttps(boolean nag)` Should the handler give warning messages if this handler is used in other than https protocols?
    `CSRFHandler` | `setTimeout(long timeout)` Set the timeout for tokens generated by the handler, by default it uses the default from the session handler.

    - ### Methods inherited from interface io.vertx.core.Handler

      `handle`

- - ### Field Detail

    - #### DEFAULT_COOKIE_NAME

          static final String DEFAULT_COOKIE_NAME

      See Also:
        Constant Field Values

    - #### DEFAULT_HEADER_NAME

          static final String DEFAULT_HEADER_NAME

      See Also:
        Constant Field Values

  - ### Method Detail

    - #### create

          static CSRFHandler create(String secret)

      Instantiate a new CSRFHandlerImpl with a secret

           CSRFHandler.create("s3cr37")

      Parameters:
        `secret` - server secret to sign the token.

    - #### setCookieName

          CSRFHandler setCookieName(String name)

      Set the cookie name. By default XSRF-TOKEN is used as it is the expected name by AngularJS however other frameworks might use other names.
      Parameters:
        `name` - a new name for the cookie.
      Returns:
        fluent

    - #### setHeaderName

          CSRFHandler setHeaderName(String name)

      Set the header name. By default X-XSRF-TOKEN is used as it is the expected name by AngularJS however other frameworks might use other names.
      Parameters:
        `name` - a new name for the header.
      Returns:
        fluent

    - #### setNagHttps

          CSRFHandler setNagHttps(boolean nag)

      Should the handler give warning messages if this handler is used in other than https protocols?
      Parameters:
        `nag` - true to nag
      Returns:
        fluent

    - #### setTimeout

          CSRFHandler setTimeout(long timeout)

      Set the timeout for tokens generated by the handler, by default it uses the default from the session handler.
      Parameters:
        `timeout` - token timeout
      Returns:
        fluent

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