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Secure PHP Building 50 Practical Applications Development phần 4

Khi một ứng dụng được gọi là trực tiếp bằng cách nhập địa chỉ URL trong trình duyệt Web, nó có thể kiểm tra sự tồn tại của một phiên họp cho người sử dụng và nếu một session đang tồn tại được tìm thấy, cô được phép truy cập hoặc người nào khác được chuyển hướng đến các hình thức đăng nhập. | Chapter 8 Intranet Simple Document Publisher IN THIS CHAPTER Developing a simple intranet document publisher Installing the intranet document publisher Using the intranet document publisher Publishing documents on the Web or on the intranet is a major task due to the complexity of the documents and how organizations manage their workflow. In this chapter we ll develop a simple document publishing tool that is available to all users on the intranet and handles HTML documents only. Because most office word-processing applications these days can save files as HTML this opens up the publisher to most organizations. Let s look at the functionality requirements that this document publishing system will meet. Identifying the Functionality Requirements The document publisher will offer each user on the intranet the following Web forms to create new documents The Web form accepts both text and HTML data. However the publisher itself does not support formatting. In other words if a user wants to paste the contents of a Word document into the publisher form she should save the Word document as an HTML file and copy the HTML contents instead of the text shown in Word s WYSIWYG editor. If text documents are to be submitted a simple trick is needed to maintain formatting which is discussed in the Adding a new document section later in this chapter. Easy and simple category-based document organization Each document is published in a category. There can be only a single level of categories. Each category will have a defined set of users who can view documents 247 248 Part 11 Developing Intranet Solutions and a defined set of publishers i.e. users who can create modify delete documents . User-level access control for viewing and creating documents Users can have view or publish creation modification deletion rights. Multiple users can have view or publish rights per category. Automated announcements for document availability and updates When new documents are created the users with