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Main Page Page Page Contents About HTTP Server for AS/400 Web Programming Guide (GC41-5435) ....v Chapter 1. Writing Common Gateway Interface Programs ..........1 Chapter 2. Application Programming Interfaces .............23 Chapter 3. Using Net.Data to Write CGI Programs for You ..........79 Page About HTTP Server for AS/400 Web Programming Guide (GC41-5435) Conventions in this book AS/400 Operations Navigator Installing Operations Navigator Prerequisite and related information vi How to send your comments Page Page Chapter 1. Writing Common Gateway Interface Programs Overview of the CGI CGI and Dynamic Documents 2 Uses for CGI The CGI process Overview 4 Sending Information to the Server Data Conversions on CGI Input and Output CGI Input Conversion Modes 6 DBCS Considerations 8 CGI Output Conversion Modes 10 Returning Output from the Server How CGI Programs Work Parsing 12 Data manipulation Response generation Environment variables 14 Requests from Standard Search (ISINDEX) Documents Passing SSL Environment Variables to a CGI Program 16 CGI Programs and AS/400 Activation Groups AS/400 Activation Groups CGI Considerations Activation Group Problem Examples 18 Page 20 Page Page Chapter 2. Application Programming Interfaces APIs for CGI applications 24 (ILE)/C, ILE/RPG, and ILE/COBOL. Get Environment Variable (QtmhGetEnv) API Put Environment Variable (QtmhPutEnv) API 26 Read from Stdin (QtmhRdStin) API 28 Write to Stdout (QtmhWrStout) API Convert to DB (QtmhCvtDB) API 30 Page Parse QUERY_STRING Environment Variable or Post stdin data (QzhbCgiParse) API 32 Page 34 CGII0200 Format Produce Full HTTP Response (QzhbCgiUtils) API 36 Page Configuration APIs Convert URL to Path (QzhbCvtURLtoPath) API 38 Page Retrieve Directive (QzhbRetrieveDirective) API 40 Page Retreive a list of all Configuration Names (QzhbGetConfigNames) API 42 Create a Configuration (QzhbCreateConfig) API Delete a Configuration (QzhbDeleteConfig) API 44 Read a Configuration File into Memory (QzhbOpenConfig) API Free a Configuration File from Memory (QzhbCloseConfig) API 46 Search for a Main Directive (QzhbFindDirective) API 48 Search for a Subdirective under Main Directive (QzhbFindSubdirective) API 50 Return Details of a Main Directive or Subdirective (QzhbGetDirectiveDetail) API Add a Main Directive or Subdirective (QzhbAddDirective) API 52 Page Remove a Main Directive or Subdirective (QzhbRemoveDirective) API 54 Replace a Main Directive or Subdirective (QzhbReplaceDirective) API Server instance APIs Retrieve a list of all Server Instances (QzhbGetInstanceNames) API 56 INSN0100 Format Look up Server Instance Data (QzhbGetInstanceData) API 58 INSD0100 Format Change Server Instance Data (QzhbChangeInstanceData) API 60 Page Create a Server Instance (QzhbCreateInstance) API 62 Delete a Server Instance (QzhbDeleteInstance) API Group file APIs Create a new Group File (QzhbCreateGroupList) API 64 Read a Group File into Memory (QzhbOpenGroupList) API 66 Free Group File from Memory (QzhbCloseGroupList) API Retrieve the next Group in the Group List (QzhbGetNextGroup) API 68 Locate a named group in a Group List (QzhbFindGroupInList) API Retrieve the Name of a Group (QzhbGetGroupName) API 70 Add a new Group to the end of a Group List (QzhbAddGroupToList) API Remove a Group from a Group List (QzhbRemoveGroupFromList) API 72 Retrieve the next User in the Group (QzhbGetNextUser) API Locate a User in a Group (QzhbFindUserInGroup) API 74 Retrieve the Name of a User (QzhbGetUserString) API Add a new user to the end of a Group (QzhbAddUserToGroup) API 76 Remove a User or Element from a Group (QzhbRemoveUserFromGroup) API 78 Chapter 3. Using Net.Data to Write CGI Programs for You Overview of Net.Data 80 Chapter 4. Using Persistent CGI Programs Overview of Persistent CGI Named Activation Groups Accept-HTSession CGI Header HTTimeout CGI Header Considerations for using Persistent CGI Programs 82 Persistent CGI Program Example 84 Chapter 5. Enabling your AS/400 to run CGI programs How to enable the server to run CGI programs Using directives for security and access control 86 The default fail rule Explicit CGI enablement Server runs only CGI programs CGI program considerations 88 Chapter 6. Sample programs (in Java, C, and RPG) Example of Java language CGI program The samplejava program takes environmental and form variables and displays them back to the browser. 90 Page 92 Page Example of C language CGI program To call the SAMPLEC C program, add the following lines to an HTMLform: 94 The SAMPLEC program shows how to write a CGI program in C language. Page 96 Page 98 Example of RPG language CGI program To call the SAMPLE RPG program, add the following lines to an HTMLform: The SAMPLE program shows how to write a CGI program in RPG language. 100 Page 102 Page 104 Example of a C language server configuration API program 106 Page Page Chapter 7. Writing Server API programs Overview of the Server API General procedure for writing Server API programs Guidelines Basic server request process 110 Application functions 112 HTTP return codes and values Predefined functions and macros 114 Page 116 Page 118 Return codes Server API configuration directives Server API usage notes 120 Server API directives and syntax Server API directive variables Compatibility with other APIs Porting CGI programs 122 Authentication and Authorization Environment variables Server API variables 124 Page 126 Page Page Chapter 8. Writing Java Servlets Overview of servlets Page Chapter 9. Using Server-Side Includes Considerations for using server-side includes Preparing to use server-side includes Format for server-side includes Directives for server-side includes 132 timefmt specify date format: Use this tag to specify the format used when providing dates. Example: 134 Page 136 Page 138 Chapter 10. Troubleshooting your CGI programs 140 Page 142 Page Page Chapter 11. Notices Programming Interface Information Trademarks 146 Page Page ReadersComments Wed Like to Hear from You ReadersComments Wed Like to Hear from You ___________________________________________________________________________________________________ GC41-5435-04 BUSINESS REPLY MAIL

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