Chapter 2: Understanding and Avoiding Security Risks
Identifying the Sources of Risk
Minimizing User-Input Risks
Not Revealing Sensitive Information
Summary
Chapter 3: PHP Best Practices
Best Practices for Naming Variables and Functions
Best Practices for Function/Method
Best Practices for Database
Best Practices for User Interface
Best Practices for Documentation
Best Practices for Web Security
Best Practices for Source Configuration Management
Summary
Part II
Chapter 4: Architecture of an Intranet Application
Understanding Intranet Requirements
Building an Intranet Application Framework
Creating a Database Abstraction Class
Creating an Error Handler Class
Creating a Built-In Debugger Class
Creating an Abstract Application Class
Creating a Sample Application
Summary
Chapter 5: Central Authentication System
How the System Works
Creating an Authentication Class
Creating the Central Login Application
Creating the Central Logout Application
Creating the Central Authentication Database
Testing Central Login and Logout
Making Persistent Logins in Web Server Farms
Summary
Chapter 6: Central User Management System
Identifying the Functionality Requirements
Creating a User Class
User Interface Templates
Creating a User Administration Application
Creating a User Password Application
Creating a Forgotten-Password Recovery Application
Summary
Chapter 7: Intranet System
Identifying Functionality Requirements
Designing the Database
Designing and Implementing the Intranet Classes
Setting Up Application Configuration Files
Setting Up the Application Templates
Intranet Home Application
Installing Intranet Applications from the CD- ROM
Testing the Intranet Home Application
Summary
Chapter 8: Intranet Simple Document Publisher
Identifying the Functionality Requirements
The Prerequisites
Designing the Database
The Intranet Document Application Classes
Setting up Application Configuration Files
Setting Up the Application Templates
The Document Publisher Application
Installing Intranet Document Application
Testing Intranet Document Application
Summary
Chapter 9: Intranet Contact Manager
Functionality Requirements
Understanding Prerequisites
The Database
The Intranet Contact Manager Application Classes
The Application Configuration Files
The Application Templates
The Contact Category Manager Application
The Contact Manager Application
Installing Intranet Contract Manager
Testing Contract Manager
Summary
Chapter 10: Intranet Calendar Manager
Identifying Functionality Requirements
Understanding Prerequisites
Designing the Database
The Intranet Calendar Application Event Class
The Application Configuration Files
The Application Templates
The Calendar Manager Application
The Calendar Event Manager Application
Installing the Event Calendar on Your Intranet
Testing the Event Calendar
Summary
Chapter 11: Internet Resource Manager
Functionality Requirements
Understanding the Prerequisites
Designing the Database
Designing and Implementing the Internet Resource Manager Application Classes
Creating Application Configuration Files
Creating Application Templates
Creating a Category Manager Application
Creating a Resource Manager Application
Creating a Resource Tracking Application
Creating a Search Manager Application
Installing an IRM on Your Intranet
Testing IRM
Security Concerns
Summary
Chapter 12: Online Help System
Functionality Requirements
Understanding the Prerequisites
Designing and Implementing the Help Application Classes
Creating Application Configuration Files
Creating Application Templates
Creating the Help Indexing Application
Creating the Help Application
Installing Help Applications
Testing the Help System
Security Considerations
Summary
Part III
Chapter 13: Tell-a-Friend System
Functionality Requirements
Understanding Prerequisites
Designing the Database
Designing and Implementing the Tell- a- Friend Application Classes
Creating Application Configuration Files
Creating Application Templates
Creating the Tell-a-Friend Main Menu Manager Application
Creating a Tell-a-Friend Form Manager Application
Creating a Tell-a-Friend Message Manager Application
Creating a Tell-a-Friend Form Processor Application
Creating a Tell-a-Friend Subscriber Application
Creating a Tell-a-Friend Reporter Application
Installing a Tell-a-Friend System
Testing the Tell-a-Friend System
Security Considerations
Summary
Chapter 14: E-mail Survey System
Functionality Requirements
Architecture of the Survey System
Designing the Database
Designing and Implementing the Survey Classes
Designing and Implementing the Survey Applications
Developing Survey Execution Manager
Setting Up the Central Survey Configuration File
Setting Up the Interface Template Files
Testing the Survey System
Security Considerations
Summary
Chapter 15: E-campaign System
Features of an E-campaign System
Architecting an E-campaign System
Designing an E-campaign Database
Understanding Customer Database Requirements
Designing E-campaign Classes
Creating Common Configuration and Resource Files
Creating Interface Template Files
Creating an E-campaign User Interface Application
Creating a List Manager Application
Creating a URL Manager Application
Creating a Message Manager Application
Creating a Campaign Manager Application
Creating a Campaign Execution Application
Creating a URL Tracking and Redirection Application
Creating an Unsubscription Tracking Application
Creating a Campaign Reporting Application
Testing the E-Campaign System
Security Considerations
Summary
Part IV
Chapter 16: Command-Line PHP Utilities
Working with the Command-Line Interpreter
Building a Simple Reminder Tool
Building a Geo Location Finder Tool for IP
Building a Hard Disk Usage Monitoring Utility
Building a CPU Load Monitoring Utility
Summary
Chapter 17: Apache Virtual Host Maker
Understanding an Apache Virtual Host
Defining Configuration Tasks
Creating a Configuration Script
Developing makesite
Installing makesite on Your System
Testing makesite
Summary
Chapter 18: BIND Domain Manager
Features of makezone
Creating the Configuration File
Understanding makezone
Installing makezone
Testing makezone
Summary
Part V
Chapter 19: Web Forms Manager
Functionality Requirements
Understanding Prerequisites
Designing the Database
Designing and Implementing the Web Forms Manager Application Classes
Creating the Application Configuration Files
Creating Application Templates
Creating the Web Forms Submission Manager Application
Creating the Web Forms Reporter Application
Creating the CSV Data Exporter Application
Installing the Web Forms Manager
Testing the Web Forms Manager
Security Considerations
Summary
Chapter 20: Web Site Tools
Functionality Requirements
Understanding Prerequisites
Designing the Database
Designing and Implementing the Voting Tool Application Class
Creating the Application Configuration Files
Creating the Application Templates
Creating the Vote Application
Installing the Voting Tool
Testing the Voting Tool
Summary
Part VI
Chapter 21: Speeding Up PHP Applications
Benchmarking Your PHP Application
Buffering Your PHP Application Output
Compressing Your PHP Application Output
Caching Your PHP Applications
Summary
Chapter 22: Securing PHP Applications
Controlling Access to Your PHP Applications
Securely Uploading Files
Using Safe Database Access
Recommended php.ini Settings for a Production Environment
Limiting File System Access for PHP Scripts
Running PHP Applications in Safe Mode
Summary
Part VII
Appendix A: What's on the CD-ROM
System Requirements
What's on the CD
Troubleshooting
Appendix B: PHP Primer
Object-Oriented PHP
Appendix C: MySQL Primer
Using MySQL from the Command- Line
Using phpMyAdmin to Manage MySQL Database
Appendix D: Linux Primer
Installing and Configuring Apache 2.0
Installing and Configuring MySQL Server
Installing and Configuring PHP for Apache 2.0
Common File/Directory Commands
Index
Wiley Publishing, Inc. End-User License Agreement
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authorize() This method authorizes everyone on the intranet to view the resource manager and, therefore, always returns TRUE. Creating a Search Manager Application This application, irm_search_mngr.php, is responsible for managing search oper- ations. This application is included on the CD-ROM in the ch11/apps directory. This application has the following methods. run() When the application is run, this method is called. It does the following: ◆ It creates a theme object, $this->themeObj. ◆ The current user’s theme choice is stored in $this->theme by calling the getUserTheme() method of the theme object created. ◆ Next, if the query parameter $cmd is set to search, it calls the displaySearchResult() method; if $cmd is set to previous or next, then it calls displaySearResultNextandPrevious(); if it is set to mostvisited, then it calls showMostVisitedResource() to show the most visited resources; if it is set to topranking, then it calls showTopRankingResource() to show the top-ranking resources; if the $cmd is set to title, rating, or addedby, then it calls sortAndDisplay(); and if $cmd is set to nothing then it calls showMenu(). In other words, the run() method decides which functionality is requested by the user and calls the appropriate driver method to perform the desired operations. populateCategory() This method is used to populate the list of all available main categories. It works as follows: ◆ This method is called with the template name ($template), the block name ($blockName), and the default selected value ($selectValue). ◆ A new Category object called $categoryObj is created and the getCategoryList() method of that object is called to generate the avail- able main categories name and stored in an array named $categoryList. 386 Part II: Developing Intranet Solutions 14 549669 ch11.qxd 4/4/03 9:25 AM Page 386 ◆ If the category list is not empty, then it sets the category ID and name for each category in the list; otherwise, it returns null. ◆ If $blockName is set to jsblock, then it parses the jsCategoryBlock and sets the output into the $category variable. Otherwise, it parses the categoryBlock block if the category ID is not equal to the $selectValue and sets the output in the $category variable. ◆ Finally, this method returns the value of $category variable. populateSubCategory() This method is used to populate the subcategory list for the given category. It works as follows: ◆ This method is called with the template name ($template), category ID ($cat_id), and block name ($blockName), where the subcategory will be populated. ◆ A new object of the Category class is created named $subcatagoryObj, and the getSubCategoryList() method is called from the class with the given category ID ($cat_id) as a parameter. The subcategory list is then stored in the array named $subcategoryList. ◆ If the subcategory list is not there, then it checks the given block name. Then it sets the subcategory name and ID in respective variables in the given block and sets the output in the $subCategory variable parsing the block. ◆ Finally, this method returns the subcategory list stored in the $subCategory. populateResource() This method is used to display resources to show the search result. It works as follows: ◆ This method is called with a template name ($template), resource display starting point ($startingPoint), and block name ($blockName) where the resource information is displayed. ◆ Next it sets the resource information in the template. ◆ Then It sets the alternative different colors in rows to display, parses each row, and stores it in the $resource variable. ◆ Finally, it returns the value of $resource. showMenu() This method is used to display the menu shown in the search index page. It works as follows: Chapter 11: Internet Resource Manager 387 14 549669 ch11.qxd 4/4/03 9:25 AM Page 387 ◆ A template object is created named $menuTemplate. To load, the template file named $IRM_SEARCH_TEMPLATE (configurable via irm.conf) is passed to the method. ◆ It creates an object of the Category class named $catObj and shows the category and subcategory names with the number of resources belonging to respective categories. ◆ Then It calls the populateCategory() method to show the category list in the drop-down list in the template. ◆ It creates an object of the User class named $userObj and calls the getUserList() method to populate all the user lists. ◆ Next it checks whether the viewer is an administrator of the IRM applica- tion or not. If she is not an administrator, it gives only the add resource link. On the other hand, If she is an administrator, it gives the category and resource manager link along with the add resource. ◆ Finally, the showWithTheme() method is called with the output of parsing the main block to embed with the user’s theme template. displaySearchResult() This method is used to display the results after executing a search operation. It works as follows: ◆ A template object is created named $menuTemplate. To load, the template file named $IRM_SEARCH_RESULT_TEMPLATE (configurable via irm.conf) is passed to the method. ◆ Then it creates a Resource class object named $resourceObj and calls the searchResource() method with the search criteria given by the user and stores it in the array named $resourceList. ◆ It creates a User class object named $userObj and calls the getUserInfo() method to get the name of the user who added the resource. ◆ Next, it assigns the search result in the SESSION_SEARCH_LIST session variable and assigns the value in the SESSION_PAGE_SIZE session variable if it is given by the user from the search interface. If it is not given by the user, then it assigns the default value (DEFAULT_PAGE_SIZE), which is con- figurable via irm.conf. ◆ Then It calls the populateResource() method to show the search result. ◆ Finally, the showWithTheme() method is called with the output of parsing the main block to embed with the user’s theme template. 388 Part II: Developing Intranet Solutions 14 549669 ch11.qxd 4/4/03 9:25 AM Page 388 sortAndDisplay() This method is used to sort the search result according to user’s criteria. This method works as follows: ◆ A template object is created named $menuTemplate. To load, the template file named $IRM_SEARCH_RESULT_TEMPLATE (configurable via irm.conf) is passed to the method. ◆ This method stores the value of the session variable in an array object named $data, which is used to sort the data. ◆ Next it checks the $cmd value, which contains sorting criteria. If $cmd is set to ‘title’, then it calls usort() with ‘sortByResourceTitle’ as the function parameter to sort the search result according to resource title and checks the $sorttype value. Depending on the value of $sorttype, array_reverse() is called to reverse the sorting result. ◆ If the $cmd is set to rating, then it calls usort() with sortByResourceRating as the function parameter to sort the result depending on the $sorttype value according to the resource rating. ◆ If the $cmd is set to addedby, then it calls usort() with ‘sortByResourceAddedBy’ as the function parameter. ◆ Then the method registers the SESSION_SEARCH_LIST session variable and assigns the sorted result in that variable. ◆ Next it calls the populateResource() method to show the sorted result. ◆ Finally, the showWithTheme() method is called with the output of parsing the main block to embed with the user’s theme template. displaySearResultNextandPrevious() This method is used to display the previous/next page results after executing a search operation. This method works as follows: ◆ A template object is created named $menuTemplate. To load, the template file named $IRM_SEARCH_RESULT_TEMPLATE (configurable via irm.conf) is passed to the method. ◆ Now it checks the $cmd value. If it is set to ‘next’, then it generates the next page resource starting point. If $cmd is set to ‘previousBlock’, then it generates the previous page starting point. ◆ Next it calls the populateResource() method to show the sorted result. ◆ Finally, the showWithTheme() method is called with the output of parsing the main HTML template block to embed with the user’s theme template. Chapter 11: Internet Resource Manager 389 14 549669 ch11.qxd 4/4/03 9:25 AM Page 389 showTopRankingResource() This method is used to display the top-ranked resources. It works as follows: ◆ A template object is created named $menuTemplate. To load, the template file named $IRM_SEARCH_RESULT_TEMPLATE (configurable via irm.conf) is passed to the method. ◆ Next it registers the session variables SESSION_SEARCH_LIST and SESSION_PAGE_SIZE to store the search output and number of resources that needs to be shown each page, respectively. ◆ Then it creates a Resource class object named $resourceObj and calls the getTopRankingList() method with the defined variable ‘TOPRANKING’ (which is configurable in the irm.conf) to get the top-ranking resource. ◆ It creates a User class object named $userObj and calls getUserInfo() method to get the name of the user who added the resource. ◆ It sets the result and parses the main block. Then it calls the showWithTheme() method to embed the output with the user’s theme template. showMostVisitedResource() This method is used to display the most visited resources. It works as follows: ◆ A template object is created named $menuTemplate. To load, the template file named $IRM_SEARCH_RESULT_TEMPLATE (configurable via irm.conf) is passed to the method. ◆ Next it registers the session variables SESSION_SEARCH_LIST and SESSION_PAGE_SIZE to store the search output and number of resources to be shown in each page, respectively. ◆ Then It creates an object of Resource class named $resourceObj and calls the getMostVisitedResource() method with a arameter called MOSTVISITED, which specifies the number of the most visited resource to be shown (configurable in the irm.conf). ◆ It calls the getResourceInfo() method to get information for each resource and stores in the session variable SESSION_SEARCH_LIST and displays the search result. ◆ Finally the showWithTheme() method is called with the output of parsing the main block to embed with the user’s theme template. showWithTheme() This method is use to show the user’s theme template. It works as follows: 390 Part II: Developing Intranet Solutions 14 549669 ch11.qxd 4/4/03 9:25 AM Page 390 . and, therefore, always returns TRUE. Creating a Search Manager Application This application, irm_search_mngr .php, is responsible for managing search oper- ations. This application is included on the CD-ROM