.NET/ASP.NET/C#/VB.NET PDF Document SDK

The configuration then specifies URL patterns followed by lists of filters that will be applied to these URLs. Note that this indicates nothing about what permissions are required to access the various URLs only about what filters will be applied. The security is enforced by these chained filters, which have their own individual configuration details. The ordering of the paths is extremely important: the first match found will be used to select the set of filters to apply to the request, so you must define the finest-grained URL patterns first and the coarsest last (otherwise, the wrong filters will be applied, and you may not be correctly securing the path, or may be incorrectly securing an insecure path).

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Simply change the collision-detection code in the Update method of the Game1 class to reflect the next code fragment: if (mySprite1Collides(mySprite2)) { mySprite1velocity *= -1; GamePadSetVibration(PlayerIndexOne, 10f, 10f); }.

In this configuration, we can see that with two exceptions, all URL requests pass through a series of six chained filters. We will examine these out of order. Listing 7-3 shows the authentication-processing filter.

else GamePad.SetVibration(PlayerIndex.One, 0f, 0f); Note that you need to set the gamepad vibration to zero when the sprites are not colliding; otherwise, it keeps on vibrating continuously. Run the program now and move the sprite with the gamepad. When the sprites overlap, mySprite1 bounces and the gamepad vibrates.

speed for the left (low-frequency) and right (high-frequency) motors. You can include code in your program to generate different types of vibrations depending on the game conditions for example, if the game collision is on the left or on the right of the player character.

<bean id="authenticationProcessingFilter" class="orgacegisecurityuiwebappAuthenticationProcessingFilter"> <property name="authenticationManager" ref="authenticationManager" /> <property name="authenticationFailureUrl" value="/login" /> <property name="defaultTargetUrl" value="/home" /> <property name="alwaysUseDefaultTargetUrl" value="false" /> <property name="filterProcessesUrl" value="/j_acegi_security_check" /> </bean> This filter looks for unauthenticated requests that is, requests by users who have not yet logged in If a user has not yet authenticated, the request will be redirected to the URL specified by the authenticationFailureUrl property: /login (URLs will always be relative to the web application context) Now we see the reason for the first of the exceptions to the general rules for filtering requests: the /login URL itself cannot be passed to the authenticationprocessing filter because this would set up a recursive filter All users must be able to access /login regardless of whether they have authenticated When the user logs in, she will be taken to the path specified by defaultTargetUrl, which is the /home path.

If, instead of the gamepad, you want to use the keyboard to control the sprite position, you can use KeyBoard.GetState to get the current state of any key: KeyboardState keyboardState = Keyboard.GetState(); if (keyboardState.IsKeyDown(Keys.Up)) mySprite2.position += new Vector2(0, -5); if (keyboardState.IsKeyDown(Keys.Down)) mySprite2.position += new Vector2(0, 5); if (keyboardState.IsKeyDown(Keys.Left)) mySprite2.position += new Vector2(-5, 0); if (keyboardState.IsKeyDown(Keys.Right)) mySprite2.position += new Vector2(5, 0);

If she were trying to access another URL before she was redirected to the login page for authentication, she would instead be sent there because the alwaysUseDefaultTargetUrl property is set to false If it were set to true, she would always arrive at the home page after login regardless of which page she originally tried to access The behavior as configured here allows bookmarked, secure URLs to work properly, however, so in general this is the preferred configuration Finally, the path to which the login form must be submitted is specified (that is, the action parameter for the form) The parameters submitted by the form must be the Servlet standard j_username and j_password When the form is submitted, the user is authenticated by using the authentication manager provided to the filter.

If, on the other hand, you want to use the mouse to control the sprite, you could use Mouse.GetState to get the current position of the mouse, and include code to make the sprite head to the current mouse position with the following code: if (mySprite2.position.X < Mouse.GetState().X) mySprite2.position += new Vector2(5, 0); if (mySprite2.position.X > Mouse.GetState().X) mySprite2.position += new Vector2(-5, 0); if (mySprite2.position.Y < Mouse.GetState().Y) mySprite2.position += new Vector2(0, 5); if (mySprite2.position.Y > Mouse.GetState().Y) mySprite2.position += new Vector2(0, -5);

The details of this mechanism are discussed later in the chapter, but the results of the authentication attempt (including details of role memberships) are retained in the thread context (see the section Security Context later in this chapter for discussion of the thread context) When a request passes through the anonymous processing filter, as configured in Listing 7-4, an alternative dummy set of authentication-request information is stored in the thread context The key shown here is analogous to the password entered in a real.