How to Use the IIS HTTP Environment Variable

• Internet Information Server versions 1.0 and 2.0

SUMMARY

You should know how to use the Internet Database Connector (IDC) in order to use the HTTP environment variables. These variables are returned to a HTX file or can be used as variables in the IDC SQLStatement: command line.

MORE INFORMATION

Syntax

Below is the proper syntax for the available variables. This requires the use of .HTM, .IDC, and .HTX files.

The HTM document should contain a FORM with a Submit button. The Action should launch the .IDC file and its Method equal to POST.

The IDC file, for this purpose, should be fully functional. However, it does not have to return any data from your DSN. In addition, this is where you place the reference for the HTX file.

The HTX file is where you will place the variables.

Variable Format

The use of these variable are a little different or cannot be used depending on the version of Internet Information Server (IIS) you are using. All variables must be in upper case.

The variables format are as follows:

These tags are running from IIS 1.0c and IIS 2.0 unless otherwise noted.

• <%ALL_HTTP%> Returns all unparsed HTTP headers.
• <%HTTP_AUTHORIZATION%> IIS 1.0 ONLY :Returns the type of authorization used.
• <%AUTH_TYPE%> IIS 2.0 ONLY : Returns the type of authorization used.
• <%HTTP_CONNECTION%> Returns the type of connection established
• <%CONTENT_LENGTH%> Returns the number of bytes expected from the client
• <%CONTENT_TYPE%> Returns the content type from the body of a POST request.
• <%GATEWAY_INTERFACE%> Returns CGI specifications the server uses.
• <%HTTP_ACCEPT%> Returns special-case header values
• <%LOGON_USER%> IIS 2.0 ONLY : Returns Windows NT account
• <%PATH_INFO%> Returns trailing part of the URL after the script name.
• <%PATH_TRANSLATED%> Returns full path of script name.
• <%HTTP_PRAGMA%> ONLY in IIS 2.0

  -<%QUERY_STRING%> Returns query string.

  -<%HTTP_REFERER%> Returns the URL of the requesting HTM.

• <%REMOTE_ADDR%> Returns the clients IP address.
• <%REMOTE_HOST%> Returns the client hostname
• <%REMOTE_USER%> Returns the authenticated client name.

  -<%REQUEST_METHOD%> Returns the HTTP request method

  -<%SCRIPT_NAME%> Returns the name of the script program being executed

• <%SERVER_NAME%> Returns the servers hostname or IP address.
• <%SERVER_PORT%> Returns the TCP/IP port used.
• <%HTTP_SERVER_PORT_SECURE%>DOES NOT WORK WITH OR WTIHOUT HTTP_ FROM SERVER OF CLIENT(IIS 1.0) Returns a value of 1 or 0 .
• <%SERVER_PROTOCOL%> Returns name and version of information retrieving protocol
• <%SERVER_SOFTWARE%> Returns the name and version of the Web Server Software
• <%HTTP_USER_AGENT%> Returns the name of the browser.