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CGI not working

maxter

19 June 2012, 12:40

Hiawatha version: 8.3.2
Operating System: linux

Hello!

I've compiled Hiawatha for linux running on ARM processor. HTML pages work OK, but when I try to use CGI, I get a mesage "500 - Internal server error".

Here is the content of the HTML page index.html

<!DOCCTYPE html>
<html>
  <head>
    <title>Hello HTML</title>
  </head>
  <body>
    <form action="cgi-bin/test.cgi">
    <div><label>Multiplicand 1: <input name="m" size="5"></label></div>
    <div><label>Multiplicand 2: <input name="n" size="5"></label></div>
    <div><input type="submit" value="Multiply!"></div>
   </form>
  </body>
</html>

And here is the content of the file test.cgi

#!/bin/sh

echo "Content-type:text/html\r\n\r\n"
echo "<html>"
echo "<head>"
echo "<title>Hello Word - First CGI Program</title>"
echo "</head>"
echo "<body>"
echo "<h2>Hello Word! This is my first CGI program</h2>"
echo "</body>"
echo "</html>"

Here is my config file

# Hiawatha main configuration file
#


# GENERAL SETTINGS
#
#ServerId = www-data
ConnectionsTotal = 150
ConnectionsPerIP = 10
SystemLogfile = /etc/hiawatha/system.log
GarbageLogfile = /etc/hiawatha/garbage.log


# BINDING SETTINGS
# A binding is where a client can connect to.
#
Binding {
        Port = 80
#       Interface = 127.0.0.1
#       MaxKeepAlive = 30
#       TimeForRequest = 3,20
}
#
#Binding {
#       Port = 443
#       Interface = ::1
#       MaxKeepAlive = 30
#       TimeForRequest = 3,20
#       SSLcertFile = hiawatha.pem
#}


# BANNING SETTINGS
# Deny service to clients who misbehave.
#
#BanOnGarbage = 300
#BanOnMaxPerIP = 60
#BanOnMaxReqSize = 300
#KickOnBan = yes
#RebanDuringBan = yes


# COMMON GATEWAY INTERFACE (CGI) SETTINGS
# These settings can be used to run CGI applications. Use the 'php-fcgi'
# tool to start PHP as a FastCGI daemon.
#
#CGIhandler = /usr/bin/perl:pl

#CGIhandler = /bin/sh:sh
#CGIhandler = /usr/bin/php-cgi:php
#CGIhandler = /usr/bin/python:py
#CGIhandler = /usr/bin/ruby:rb
#CGIhandler = /usr/bin/ssi-cgi:shtml
CGIextension = cgi
#
#FastCGIserver {
#       FastCGIid = PHP5
#       ConnectTo = 127.0.0.1:2005
#       Extension = php
#}


# URL TOOLKIT
# This URL toolkit rule was made for the Banshee PHP framework, which
# can be downloaded from http://www.hiawatha-webserver.org/banshee
#
#UrlToolkit {
#       ToolkitID = banshee
#       RequestURI isfile Return
#       Match ^/(css|files|images|js|slimstat)($|/) Return
#       Match ^/(favicon.ico|robots.txt|sitemap.xml)$ Return
#       Match .*\?(.*) Rewrite /index.php?$1
#       Match .* Rewrite /index.php
#}


# DEFAULT WEBSITE
# It is wise to use your IP address as the hostname of the default website
# and give it a blank webpage. By doing so, automated webscanners won't find
# your possible vulnerable website.
#
Hostname = 127.0.0.1
WebsiteRoot = /home/root/www/hiawatha
StartFile = index.html
ExecuteCGI = yes
AccessLogfile = /etc/hiawatha/access.log
ErrorLogfile = /etc/hiawatha/error.log
#ErrorHandler = 404:/error.cgi


# VIRTUAL HOSTS
# Use a VirtualHost section to declare the websites you want to host.
#
#VirtualHost {
#       Hostname = www.my-domain.com
#       WebsiteRoot = /home/root/www/hiawatha
#       StartFile = index.html
#       AccessLogfile = /home/root/www/hiawatha/access.log
#       ErrorLogfile = /home/root/www/hiawatha/error.log
#       ExecuteCGI = yes
#       TimeForCGI = 5
#       UseFastCGI = PHP5
#       UseToolkit = banshee
#}


# DIRECTORY SETTINGS
# You can specify some settings per directory.
#
#Directory {
#       Path = /home/root/www/hiawatha/cgi-bin
#       ExecuteCGI = yes
#       UploadSpeed = 10,2
#}

I couldn't find answer for my question so could you, please, help me with it.

maxter

19 June 2012, 12:42

Another thing. After the attempt to execute this cgi program, I see the following string in error.log

192.168.100.24|Fri 25 Mar 2011 16:35:04 +0000|/home/root/www/hiawatha/cgi-bin/test.cgi|CGI only printed a HTTP header, no content

Hugo Leisink

22 June 2012, 13:40

My guess is that Hiawatha, which is running as user 'nobody', can't access files in /home/root. Otherwise, I have no idea what goes wrong.

maxter

24 July 2012, 11:48

Unfortunately that's not the reason. Thank you for your suggestion. Any other ideas?

Hugo Leisink

24 July 2012, 18:51

I'm afraid not...

Nick Coleman

10 August 2012, 17:35

Possibly the \r\n\r\n. Should be \n\n, shouldn't it? That would explain the "CGI only printed a header" message.

Hugo Leisink

10 August 2012, 20:49

The correct way to end a CGI header line is by using \r\n. To end the complete CGI header is to also use \r\n. So, \r\n\r\n at the end is the correct one.

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