Pro PHP and jQuery by Jason Lengstorf.pdf - Computer Science ...

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212 CHAPTER 6 ■ PASSWORD PROTECTION SENSITIVE ACTIONS AND AREAS As you can see, hashes of the word test don’t match up when passed separately; however, if you supply an existing salted hash of test, the same hash is produced. This way, even if two users have the same password, their stored hashes will be different, making it much more difficult for potential attackers to crack passwords. ■ Note Bear in mind that no algorithm is 100% effective. However, using techniques like salted hashes makes it possible to reduce the possibility of an attack significantly. Creating a User to Test Administrative Access In order to test the administrative functions, you’ll need a username/password pair to exist in your users table. For simplicity, the username will be testuser, the password will be admin, and the email address will be admin@example.com. Keep in mind that this is not a secure password; it is being used for illustration purposes only, and it should be changed before you use it with any production scripts. Begin by generating a hash of the password, admin, which is easy using the test method testSaltedHash() and test.php. Add the following bold code to test.php to generate a salted hash of your test user’s password: Navigate to http://localhost/test.php, and you’ll see output similar to the following: Hash of "admin": a1645e41f29c45c46539192fe29627751e1838f7311eeb4 Copy the hash, navigate to http://localhost/phpmyadmin, and then click the SQL tab. Execute the following query to insert a test user into the table: INSERT INTO `php-jquery_example`.ùsers` (ùser_name`, ùser_pass`, ùser_email`) VALUES
( 'testuser', 'a1645e41f29c45c46539192fe29627751e1838f7311eeb4', 'admin@example.com' ); CHAPTER 6 ■ PASSWORD PROTECTION SENSITIVE ACTIONS AND AREAS After executing the preceding code, click the php-jquery_example database, and then the users table. Select the Browse tab to view the user info in the table (see Figure 6-3). Figure 6-3. The test user data after inserting it into the database Now that a user exists in the user database with a salted hash stored, you can delete both the testSaltedHash() method from the Admin class and the entire test.php file. Modifying the App to Handle the Login Form Submission At this point, you’re almost ready to test a user login. Before it will work, however, you need to modify process.inc.php to handle form submissions from the login form. Due to the way the file is set up, this change is as simple as adding a new element to the $actions array. Open process.inc.php and insert the following bold code:
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THE EXPERT’S VOICE ® IN OPEN SOU
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ii Pro PHP and jQuery Copyright ©
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iv Contents at a Glance ■About th
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vi ■ CONTENTS Understanding jQuer
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viii ■ CONTENTS Summary .........
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x ■ CONTENTS ■Chapter 9: Perfor
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xii About the Author ■ Jason Leng
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xiv Acknowledgments I feel like I s
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C H A P T E R 1 ■ ■ ■ Introdu
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CHAPTER 1 ■ INTRODUCING JQUERY Th
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SETTING UP A LOCAL TESTING ENVIRONM
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google.load("jquery", "1.4.2");
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Basic Selectors CHAPTER 1 ■ INTRO
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Only one paragraph in our document
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$(".foo+p"); CHAPTER 1 ■ INTRODUC
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$("p:odd"); [ p.foo, p#bar ] Select
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$("p:parent"); [ p, p.foo, p, p#bar
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which returns the following in the
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Selecting Only Enabled or Disabled
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26 CHAPTER 2 ■ COMMON JQUERY ACTI
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C H A P T E R 3 ■ ■ ■ Object-
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$obj = new MyClass; var_dump($obj);
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CHAPTER 3 ■ OBJECT-ORIENTED PROGR
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$obj = new MyClass; // Get the valu
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} public function setProperty($newv
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} } return $this->getProperty(); pu
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Create a new object $newobj = new M
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} } // Create a new object $newobj
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Private Properties and Methods CHAP
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} public function __construct() { e
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*/ CHAPTER 3 ■ OBJECT-ORIENTED PR
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Ease of Implementation CHAPTER 3
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C H A P T E R 4 ■ ■ ■ Build a
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CHAPTER 4 ■ BUILD AN EVENTS CALEN
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# # DocumentRoot: The directory out
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CHAPTER 4 ■ BUILD AN EVENTS CALEN
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} ?> } } } CHAPTER 4 ■ BUILD AN E
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■ Note For the sake of brevity, D
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} ?> CHAPTER 4 ■ BUILD AN EVENTS
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} ?> } include_once $filename; CHAP
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private $_startDay; public function
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138 CHAPTER 4 ■ BUILD AN EVENTS C
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262 CHAPTER 7 ■ ENHANCING THE USE
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264 CHAPTER 8 ■ EDITING THE CALEN
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P A R T 4 ■ ■ ■ Advancing jQu
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312 CHAPTER 9 ■ PERFORMING FORM V
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C H A P T E R 10 ■ ■ ■ Extend
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$.validDate = function(date, option
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Modifying the Initialization Script
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Adding Methods to jQuery CHAPTER 10
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over, then returns it to its origin
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CHAPTER 10■ EXTENDING JQUERY ■
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Defines default values for the plug
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}); // Loads the event data from th
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■ ■ ■ Index ■ Special Chara
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■ C Calendar app JavaScript initi
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saving new calendar events in addin
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:eq( ) method, 17, 20, 26-27 equals
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eginning of string, 324 character c
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asic selectors in by class name, 12
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.die( ) method, 75-76 .error( ) met
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.parents( ) method, 33 .parentsUnti
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overview, 328 regex pattern to vali
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