[Solved] CGI bash script - 403 Forbidden error - Lighttpd - lighty labs

[Solved] CGI bash script - 403 Forbidden error

Unable to get a bash script to work with CGI.

This is Ubuntu at Wiki Labs. The system default conf is here:

https://wikitech.wikimedia.org/wiki/Nova_Resource:Tools/Help#Default_configuration

Changes to the default are made in a .lighttp.conf in the home directory. It contains:

static-file.exclude-extensions += ( ".sh" )

alias.url += ( "/cgi-bin" => "$home/public_html/cgi-bin/" )

$HTTP["url"] == "/cgi-bin" {
        cgi.assign = ( ".sh" => "" )
    }

The document root directory looks like this:

tools@tools-login:~/public_html$ ls -l
drwxrwsr-x 2 tools tools 4096 Sep 19 15:40 cgi-bin

cgi-bin directory contain this:

tools@tools-login:~/public_html/cgi-bin$ ls -l
-rwxr-xr-x 1 tools tools 67 Sep 19 15:31 test.sh

test.sh is this:

#!/bin/sh
echo "Content-type: text/html<br><br>" 
echo "I am here."

I've tried so many things in the .lighttpd.conf and nothing seems to work. Sometimes I can get it display the output ("I am here") but it's not in HTML format (ie. not being interpreted as a CGI script). I don't have access to sudo or the server logs, only the error and access logs and they don't say much.

Any ideas?

Replies (3)

RE: [Solved] CGI bash script - 403 Forbidden error - Added by gstrauss about 8 years ago

Replace $home with /home/tools or whatever is appropriate. lighttpd does not perform per-request variable substitution in that part of the config.

Your shell script is an invalid CGI/1.1 response. Try this:

#!/bin/sh
echo "Content-type: text/html" 
echo 
echo "<html><head></head><body>I am here.</body></html>"

RE: [Solved] CGI bash script - 403 Forbidden error - Added by migajohn about 7 years ago

Hello,
I have same problem, I can't execute cgi from internet network , somebody have an idea?

/etc/lighttpd/lighttpd.conf

server.modules = (
    "mod_access",
    "mod_alias",
    "mod_compress",
     "mod_redirect",
        "mod_rewrite",
        "mod_cgi",
)

server.document-root        = "/var/www/html" 
server.upload-dirs          = ( "/var/cache/lighttpd/uploads" )
server.errorlog             = "/var/log/lighttpd/error.log" 
server.pid-file             = "/var/run/lighttpd.pid" 
server.username             = "www-data" 
server.groupname            = "www-data" 
server.port                 = 80

index-file.names            = ( "index.php", "index.html", "index.lighttpd.html" )
url.access-deny             = ( "~", ".inc" )
static-file.exclude-extensions = ( ".php", ".pl", ".fcgi" )

compress.cache-dir          = "/var/cache/lighttpd/compress/" 
compress.filetype           = ( "application/javascript", "text/css", "text/html", "text/plain" )

# default listening port for IPv6 falls back to the IPv4 port
## Use ipv6 if available
#include_shell "/usr/share/lighttpd/use-ipv6.pl " + server.port
include_shell "/usr/share/lighttpd/create-mime.assign.pl" 
include_shell "/usr/share/lighttpd/include-conf-enabled.pl" 
cgi.assign = ( ".sh" => "/bin/sh" )

static-file.exclude-extensions += ( ".sh" )
alias.url += ( "/cgi-bin" => "/var/www/cgi-bin/" )

$HTTP["url"] == "/cgi-bin" {
        cgi.assign = ( ".sh" => "" )
    }

mjpg-streamer
sudo /opt/mjpg-streamer/mjpg_streamer -i "/opt/mjpg-streamer/input_uvc.so -d /dev/video0" -o "/opt/mjpg-streamer/output_http.so -p 81 -w /var/www"

Thanks

Download all files

Capture d’écran de 2018-04-21 18-47-28.png (384 KB) Capture d’écran de 2018-04-21 18-47-28.png	outside network
Capture d’écran de 2018-04-21 18-48-07.png (348 KB) Capture d’écran de 2018-04-21 18-48-07.png	home network

Capture d’écran de 2018-04-21 18-47-28.png

Capture d’écran de 2018-04-21 18-48-07.png

RE: [Solved] CGI bash script - 403 Forbidden error - Added by gstrauss about 7 years ago

@migajohn: it is inappropriate to post an unrelated issue to a ticket that is a year old and solved. Your issue is unrelated. If it works "inside" but not "outside", then the links you are generating will not work "outside". See Docs_ModProxy

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