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	whoami - what your browser sends and receives
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Who Am I???

About the whoami.cgi script:

The whoami.cgi CGI script will show you what your browser sends to the remove server. It will also show additional information about the environment on the www.isthe.com server itself.

The source for this whoami.cgi CGI script is available.

Viewing the results:

The results of whoami.cgi will be displayed in several parts:

Process execution
- process argument count
- value of the process arguments
- current working directory
- user id
- group id
- group membership
CGI environment variables Various environment variables related to CGI scripts. Common ones reported are:
- $CONTENT_LENGTH - length of POST method standard input
- $CONTENT_TYPE - format type of POST method standard input
- $GATEWAY_INTERFACE - CGI interface version
- $PATH_INFO - path beyond CGI script in URL
- $PATH_TRANSLATED - translation of $PATH_INFO to filename
- $QUERY_STRING - string beyond first ? in URL
- $REMOTE_ADDR - IP address of the remote host
- $REMOTE_HOST - remote hostname
- $REQUEST_METHOD - CGI info request method (GET or POST)
- $SCRIPT_NAME - CGI script to be executed
- $SERVER_NAME - HTTP server hostname running the CGI
- $SERVER_PORT - HTTP server contact port
- $SERVER_PROTOCOL - HTTP server HTTP protocol
- $SERVER_SOFTWARE - HTTP server software
- $SERVER_URL - URL of the HTTP server
HTTP environment variables:
Various environment variables that begin with HTTP. Common ones reported are:
- $HTTP_ACCEPT - HTTP server formats accepted
- $HTTP_CONNECTION - HTML server connection type
- $HTTP_HOST - HTML server hostname
- $HTTP_PRAGMA - HTML server pragma
- $HTTP_REFERER - URL referenced
- $HTTP_USER_AGENT - User agent software
other environment variables:
Any other environment variables found. Common ones reported are:
- $PATH - execution path of the CGI script
- $TZ - timezone of CGI script
data on standard input:
Data read on standard input. The POST method passes data on standard input in lines of the form: name=value.

The source for this whoami.cgi CGI script is available.

plain CGI URL - (GET method)

This is just a request for a CGI script with no extra path information and no query using the GET method.

/cgi-bin/chongo/whoami.cgi

CGI URL with extra path - (GET method)

This is a request for a script with the extra path ``/extra/path'', and no query using the GET method.

/cgi-bin/chongo/whoami.cgi/extra/path

CGI URL with a query - (GET method)

This is a query ``query'' for a script with no extra path information using the GET method.

/cgi-bin/chongo/whoami.cgi?query

CGI URL with extra path and a query - (GET method)

This is a request for a script with the extra path ``/extra/path'', and a query ``query'' using the GET method.

/cgi-bin/chongo/whoami.cgi/extra/path?a+query

CGI simple FORM - (GET method)

You'll need a browser which supports HTML forms for this example. Clicking the submit button will execute the CGI with no query and no extra path information using the GET method.

CGI simple FORM - (POST method)

You'll need a browser which supports HTML forms for this example. Clicking the submit button will execute the CGI with no query and no extra path information using the POST method.

CGI complex FORM - (GET method)

You'll need a browser which supports HTML forms for this example. Clicking the submit button will execute the CGI with no query and no extra path information using the GET method.

Radio test: [A ] [B ] [C ]

Checkbox test: D E F

Field 1: 
Field 2: 
Password:

Click to this form

Click to

CGI complex FORM - (POST method)

You'll need a browser which supports HTML forms for this example. Clicking the submit button will execute the CGI with no query and no extra path information using the POST method.

Radio test: [A ] [B ] [C ]

Checkbox test: D E F

Field 1: 
Field 2: 
Password:

Click to this form

Click to

CGI complex FORM with query string - (GET method)

You'll need a browser which supports HTML forms for this example. Clicking the submit button will execute the CGI with no extra path and a query string of ``query'' using the GET method.

Radio test: [A ] [B ] [C ]

Checkbox test: D E F

Field 1: 
Field 2: 
Password:

Click to this form

Click to

CGI complex FORM with query string - (POST method)

You'll need a browser which supports HTML forms for this example. Clicking the submit button will execute the CGI with no extra path and a query string of ``query'' using the POST method.

Radio test: [A ] [B ] [C ]

Checkbox test: D E F

Field 1: 
Field 2: 
Password:

Click to this form

Click to

CGI complex FORM with extra path & query string - (GET method)

You'll need a browser which supports HTML forms for this example. Clicking the submit button will execute the CGI with a query string of ``query'' and an extra path of ``/extra/path'' using the GET method.

Radio test: [A ] [B ] [C ]

Checkbox test: D E F

Field 1: 
Field 2: 
Password:

Click to this form

Click to

CGI complex FORM with extra path & query string - (POST method)

Radio test: [A ] [B ] [C ]

Checkbox test: D E F

Field 1: 
Field 2: 
Password:

Click to this form

Click to

My CGI demo page contains more examples of CGI scripts.

whoami - what your browser sends and receives

Who Am I???

About the whoami.cgi script:

Viewing the results:

plain CGI URL - (GET method)

CGI URL with extra path - (GET method)

CGI URL with a query - (GET method)

CGI URL with extra path and a query - (GET method)

CGI simple FORM - (GET method)

CGI simple FORM - (POST method)

CGI complex FORM - (GET method)

CGI complex FORM - (POST method)

CGI complex FORM with query string - (GET method)

CGI complex FORM with query string - (POST method)

CGI complex FORM with extra path & query string - (GET method)

CGI complex FORM with extra path & query string - (POST method)