J. Blustein

Web-centric Computing

Some Example Code

SSI Test Page

This page looks different on

What works (and what doesn't)

  1. <!--#echo var="DATE_LOCAL" -->
    Friday, 08-Nov-2024 13:35:31 AST
  2. <!--#echo var="document_name" -->
    test1.shtml
  3. <!--#exec cmd="/usr/bin/echo exec works" -->
  4. Include virtual works on torch (see below)

Sometimes small differences matter...

  1. <!--#echo var="DATE_LOCAL" -->
    Friday, 08-Nov-2024 13:35:31 AST
  2. <!-- #echo var="DATE_LOCAL" -->

    Because of the extra space in the second example, the directive is not recognized

A whole lot of testing goin' on

  1. Date & Time

    1. <!--#echo var="DATE_LOCAL" -->
      Friday, 08-Nov-2024 13:35:31 AST
    2. <!--#echo var="Date_GMT" -->
      Friday, 08-Nov-2024 17:35:31 GMT

  2. About this document

    1. <!--#echo var="DOCUMENT_NAME" -->
      test1.shtml
    2. <!--#echo var="DOCUMENT_URI" -->
      /~jamie/teach/course/CS/3172/Materials/examples/SSI/test1.shtml
    3. <!--#echo var="last_modified" -->
      Wednesday, 10-Jun-2009 14:31:00 ADT

  3. About this server

    1. <!--#echo var="server_name" -->
      web.cs.dal.ca
    2. <!--#echo var="server_software" -->
      Apache

  4. About the user/browser

    1. <!--# echo var="HTTP_USER_AGENT" -->
      [an error occurred while processing this directive]
    2. <!--# echo var="GATEWAY_INTERFACE" -->
      [an error occurred while processing this directive]
    3. <!--#echo var="remote_addr" -->
      18.188.95.170

  5. Files on the server (executables and data files)

    1. <!--#exec cmd="/usr/bin/echo exec works" -->
    2. <!--#exec cmd="/usr/bin/id" -->
    3. <!--#exec cmd="/usr/bin/cat /etc/passwd" -->

  6. If

         <pre>
      <!--#if expr="apple=orange" -->
       If is not working
      <!--#else -->
       If *is* working
      <!--#endif -->
     </pre>
     
          [an error occurred while processing this directive]
       If is not working

  7. CGI executables within SSI

    1. CGI directive 
                 <!--#exec cgi="/~maxwell/cgi-bin/test-cgi.cgi" -->
         
                 CGI/1.0 test script report:

argc is 0. argv is .

SERVER_SOFTWARE = Apache
SERVER_NAME = web.cs.dal.ca
GATEWAY_INTERFACE = CGI/1.1
SERVER_PROTOCOL = INCLUDED
SERVER_PORT = 443
REQUEST_METHOD = GET
HTTP_ACCEPT = */*
PATH_INFO = 
PATH_TRANSLATED = 
SCRIPT_NAME = /~maxwell/cgi-bin/test-cgi.cgi
QUERY_STRING = 
REMOTE_HOST =
REMOTE_ADDR = 18.188.95.170
REMOTE_USER =
AUTH_TYPE =
CONTENT_TYPE =
CONTENT_LENGTH =

Id : 
uid=5002(maxwell) gid=1035(csstaff) groups=1035(csstaff),1032(fcsfile),1033(cstech),1036(ember),1043(deepsense),1051(fcsaio),1088(cshelp),1091(officestaffdrive),1092(deansofficedrive),5012(dstech),6010(malnis),17997(awxadmins) context=system_u:system_r:httpd_suexec_t:s0


Environment: 
SERVER_SIGNATURE=
SSL_TLS_SNI=web.cs.dal.ca
UNIQUE_ID=Zy5L44-WSwtjP7Ul1oJ1ZAAA0gQ
HTTP_USER_AGENT=Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
SERVER_PORT=443
HTTP_HOST=web.cs.dal.ca
DOCUMENT_ARGS=
DOCUMENT_ROOT=/local/data/web.cs.dal.ca/web/
SCRIPT_FILENAME=/users/webhome/maxwell/cgi-bin/test-cgi.cgi
HTTPS=on
REQUEST_URI=/~jamie/teach/course/CS/3172/Materials/examples/SSI/test1.shtml
USER_NAME=
SCRIPT_NAME=/~maxwell/cgi-bin/test-cgi.cgi
REMOTE_PORT=39821
PATH=/usr/local/bin:/usr/bin:/bin
CONTEXT_PREFIX=/~maxwell
PWD=/users/webhome/maxwell/cgi-bin
SERVER_ADMIN=cshelp@cs.dal.ca
REQUEST_SCHEME=https
DATE_GMT=
HTTP_ACCEPT=*/*
DOCUMENT_URI=/~jamie/teach/course/CS/3172/Materials/examples/SSI/test1.shtml
DATE_LOCAL=
REMOTE_ADDR=18.188.95.170
SHLVL=1
SERVER_NAME=web.cs.dal.ca
LAST_MODIFIED=
DOCUMENT_NAME=test1.shtml
SERVER_SOFTWARE=Apache
QUERY_STRING=
SERVER_ADDR=129.173.22.11
GATEWAY_INTERFACE=CGI/1.1
SERVER_PROTOCOL=INCLUDED
HTTP_ACCEPT_ENCODING=gzip, br, zstd, deflate
REQUEST_METHOD=GET
CONTEXT_DOCUMENT_ROOT=/users/webhome/maxwell
_=/usr/bin/env


Stdin: 


------------ DONE ------------
    2. Include virtual directive 
                 <pre>
      
             <!--#include virtual="/~maxwell/cgi-bin/test-cgi.cgi" -->
      
           </pre>
          
                  CGI/1.0 test script report:

argc is 0. argv is .

SERVER_SOFTWARE = Apache
SERVER_NAME = web.cs.dal.ca
GATEWAY_INTERFACE = CGI/1.1
SERVER_PROTOCOL = INCLUDED
SERVER_PORT = 443
REQUEST_METHOD = GET
HTTP_ACCEPT = */*
PATH_INFO = 
PATH_TRANSLATED = 
SCRIPT_NAME = /~maxwell/cgi-bin/test-cgi.cgi
QUERY_STRING = 
REMOTE_HOST =
REMOTE_ADDR = 18.188.95.170
REMOTE_USER =
AUTH_TYPE =
CONTENT_TYPE =
CONTENT_LENGTH =

Id : 
uid=5002(maxwell) gid=1035(csstaff) groups=1035(csstaff),1032(fcsfile),1033(cstech),1036(ember),1043(deepsense),1051(fcsaio),1088(cshelp),1091(officestaffdrive),1092(deansofficedrive),5012(dstech),6010(malnis),17997(awxadmins) context=system_u:system_r:httpd_suexec_t:s0


Environment: 
SERVER_SIGNATURE=
SSL_TLS_SNI=web.cs.dal.ca
UNIQUE_ID=Zy5L44-WSwtjP7Ul1oJ1ZAAA0gQ
HTTP_USER_AGENT=Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
SERVER_PORT=443
HTTP_HOST=web.cs.dal.ca
DOCUMENT_ARGS=
DOCUMENT_ROOT=/local/data/web.cs.dal.ca/web/
SCRIPT_FILENAME=/users/webhome/maxwell/cgi-bin/test-cgi.cgi
HTTPS=on
REQUEST_URI=/~jamie/teach/course/CS/3172/Materials/examples/SSI/test1.shtml
USER_NAME=
SCRIPT_NAME=/~maxwell/cgi-bin/test-cgi.cgi
REMOTE_PORT=39821
PATH=/usr/local/bin:/usr/bin:/bin
CONTEXT_PREFIX=/~maxwell
PWD=/users/webhome/maxwell/cgi-bin
SERVER_ADMIN=cshelp@cs.dal.ca
REQUEST_SCHEME=https
DATE_GMT=
HTTP_ACCEPT=*/*
DOCUMENT_URI=/~jamie/teach/course/CS/3172/Materials/examples/SSI/test1.shtml
DATE_LOCAL=
REMOTE_ADDR=18.188.95.170
SHLVL=1
SERVER_NAME=web.cs.dal.ca
LAST_MODIFIED=
DOCUMENT_NAME=test1.shtml
SERVER_SOFTWARE=Apache
QUERY_STRING=
SERVER_ADDR=129.173.22.11
GATEWAY_INTERFACE=CGI/1.1
SERVER_PROTOCOL=INCLUDED
HTTP_ACCEPT_ENCODING=gzip, br, zstd, deflate
REQUEST_METHOD=GET
CONTEXT_DOCUMENT_ROOT=/users/webhome/maxwell
_=/usr/bin/env


Stdin: 


------------ DONE ------------

Important Notes

http://www.cs.dal.ca/~jamie/course/CS/3172/examples/SSI/test1.shtml
Version:
23 October 2001
Based on
ssitest.shtml from Chris Maxwell
Prof:
J. Blustein <jamie@cs.dal.ca>

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