The World Wide Web is more than a place to put up clever documents and pretty pictures. Using the Common Gateway Interface (CGI), you can offer interactive queries and serve instant information from databases, worked up into colorful graphics. This book offers a comprehensive explanation of CGI and related techniques for people who hold on to the dream of providing their own information servers on the Web. The author starts at the beginning, explaining the value of CGI and how it works, then moves swiftly into the subtle details of programming. The majority of examples use the most common platform (UNIX) and the most popular language (Perl) used for CGI programming today. However, the book also introduces the essentials of making CGI work with other platforms and languages.
Author(s): Shishir Gundavaram
Series: A Nutshell handbook
Edition: 1st ed
Publisher: O'Reilly & Associates
Year: 1996
Language: English
Pages: 372
City: Bonn; Cambridge
Lokale Festplatte......Page 0
CGI Programming on the World Wide Web......Page 1
[Chapter 1] The Common Gateway Interface (CGI)......Page 2
[Chapter 1] 1.2 CGI Applications......Page 4
[Chapter 1] 1.3 Some Working CGI Applications......Page 6
[Chapter 1] 1.4 Internal Workings of CGI......Page 8
[Chapter 1] 1.5 Configuring the Server......Page 11
[Chapter 1] 1.6 Programming in CGI......Page 13
[Chapter 1] 1.7 CGI Considerations......Page 16
[Chapter 1] 1.8 Overview of the Book......Page 17
[Chapter 2] Input to the Common Gateway Interface......Page 19
[Chapter 2] 2.2 Using Environment Variables......Page 21
[Chapter 2] 2.3 Accessing Form Input......Page 26
[Chapter 2] 2.4 Extra Path Information......Page 31
[Chapter 2] 2.5 Other Languages Under UNIX......Page 33
[Chapter 2] 2.6 Other Languages Under Microsoft Windows......Page 36
[Chapter 2] 2.7 Other Languages on Macintosh Servers......Page 38
[Chapter 2] 2.8 Examining Environment Variables......Page 40
[Chapter 3] Output from the Common Gateway Interface......Page 42
[Chapter 3] 3.2 CGI and Response Headers......Page 44
[Chapter 3] 3.3 Accept Types and Content Types......Page 46
[Chapter 3] 3.4 The Content-length Header......Page 48
[Chapter 3] 3.5 Server Redirection......Page 50
[Chapter 3] 3.6 The "Expires" and "Pragma" Headers......Page 52
[Chapter 3] 3.7 Status Codes......Page 54
[Chapter 3] 3.8 Complete (Non-Parsed) Headers......Page 56
[Chapter 4] Forms and CGI......Page 58
[Chapter 4] 4.2 Sending Data to the Server......Page 65
[Chapter 4] 4.3 Designing Applications Using Forms in Perl......Page 68
[Chapter 4] 4.4 Decoding Forms in Other Languages......Page 74
[Chapter 5] Server Side Includes......Page 89
[Chapter 5] 5.2 Configuration......Page 92
[Chapter 5] 5.3 Environment Variables......Page 94
[Chapter 5] 5.4 Including Boilerplates......Page 96
[Chapter 5] 5.5 File Statistics......Page 98
[Chapter 5] 5.6 Executing External Programs......Page 99
[Chapter 5] 5.7 Executing CGI Programs......Page 101
[Chapter 5] 5.8 Tailoring SSI Output......Page 105
[Chapter 5] 5.9 Common Errors......Page 107
[Chapter 6] Hypermedia Documents......Page 108
[Chapter 6] 6.2 CGI Examples with PostScript......Page 112
[Chapter 6] 6.3 The gd Graphics Library......Page 121
[Chapter 6] 6.4 CGI Examples with gnuplot......Page 130
[Chapter 6] 6.5 CGI Examples with pgperl......Page 134
[Chapter 6] 6.6 Animation......Page 138
[Chapter 7] Advanced Form Applications......Page 142
[Chapter 7] 7.2 Survey/Poll and Pie Graphs......Page 150
[Chapter 7] 7.3 Quiz/Test Form Application......Page 160
[Chapter 7] 7.4 Security......Page 173
[Chapter 8] Multiple Form Interaction......Page 175
[Chapter 8] 8.2 CGI Side Includes......Page 182
[Chapter 8] 8.3 Netscape Persistent Cookies......Page 192
[Chapter 9] Gateways, Databases, and Search/Index Utilities......Page 194
[Chapter 9] 9.2 Mail Gateway......Page 204
[Chapter 9] 9.3 Relational Databases......Page 211
[Chapter 9] 9.4 Search/Index Gateway......Page 235
[Chapter 10] Gateways to Internet Information Servers......Page 239
[Chapter 10] 10.2 What Are Sockets?......Page 241
[Chapter 10] 10.3 Socket I/O in Perl......Page 242
[Chapter 10] 10.4 Socket Library......Page 245
[Chapter 10] 10.5 Checking Hypertext (HTTP) Links......Page 247
[Chapter 10] 10.6 Archie......Page 249
[Chapter 10] 10.7 Network News on the Web......Page 255
[Chapter 10] 10.8 Magic Cookies......Page 264
[Chapter 10] 10.9 Maintaining State with a Server......Page 266
[Chapter 10] 10.10 Forking/Spawning Child Processes......Page 278
[Chapter 11] Advanced and Creative CGI Applications......Page 281
[Chapter 11] 11.2 Game of Concentration......Page 284
[Chapter 11] 11.3 Introduction to Imagemaps......Page 293
[Chapter 11] 11.4 Calendar Manager......Page 295
[Chapter 12] Debugging and Testing CGI Applications......Page 321
[Chapter 12] 12.2 Programming/System Errors......Page 325
[Chapter 12] 12.3 Environment Variables......Page 327
[Chapter 12] 12.4 Logging and Simulation......Page 328
[Chapter 12] 12.5 CGI Lint--A Debugging/Testing Tool......Page 331
[Chapter 12] 12.6 Set UID/GID Wrapper......Page 335
[Appendix A] Perl CGI Programming FAQ......Page 336
[Appendix A] A.2 Modules......Page 339
[Appendix A] A.3 CGI and the WWW Server......Page 341
[Appendix A] A.4 Specific Programming Questions......Page 343
[Appendix A] A.5 Security......Page 352
[Appendix A]......Page 354
[Appendix B] Summary of Regular Expressions......Page 355
[Appendix C] CGI Modules for Perl 5......Page 358
[Appendix C] C.2 Form Creation and Parsing......Page 360
[Appendix D] CGI Lite......Page 363
[Appendix E] Applications, Modules, Utilities, and Documentation......Page 366
[Appendix E] E.2 CGI Software......Page 368
[Appendix E] E.3 Utilities and Applications......Page 369
[Appendix E] E.4 WWW Server Information......Page 370
[Appendix E] E.5 Online Documentation......Page 371
[Appendix E] E.6 Official Specifications......Page 372
