Is 'cgi_environment' option deprecated?

[Dimitar D. Mitov]

Hello to all Mongoose developers, testers, users and fans!

Is 'cgi_environment' option deprecated in recent versions?

I'm using Mongoose 5.1 and when trying to set this option from configuration file, I receive:

'Failed to set option [cgi_environment]: No such option'

I found that in version 3.2 (https://code.google.com/p/mongoose/source/browse/mongoose.1) this option was still available.

I also found the following entry in the old Mongoose manual on googlecode:

' -cgi_env list

	     Pass environment variables to the CGI script in addition to stan-
	     dard ones.  The list must be comma-separated list of X=Y pairs,
	     like this: "VARIABLE1=VALUE1,VARIABLE2=VALUE2".  Default: not 

set.'

(http://mongoose.googlecode.com/svn/wiki/MongooseManual.wiki)

When I tried to set 'cgi_env', again from configuration file, I get the same error:

'Failed to set option [cgi_env]: No such option'

My other questions are:

1. What are the reasons for disabling this option?

(implementation problems, security issues, lack of interest among users?)

2. How to reeanble this option? Can I and should I use parts of the old code (from versions using this option)?

I need this option to pass PERL5LIB environment variable for Perl scripts and be able to load Perl modules without system-wide installation or any modifications in the scripts.

Thanks in advance for any usefull info!

[Sergey Lyubka]

Hi Dimitar!

 

My other questions are:

1. What are the reasons for disabling this option?

(implementation problems, security issues, lack of interest among users?)

The reason is that a simpler mechanism exists: mongoose passes MONGOOSE_CGI

variable to the CGI. So, export MONGOOSE_CGI with any information you want to pass

to mongoose, and it'll be available to CGI process.

(documented at http://cesanta.com/docs.html?Options.md)

 

2. How to reeanble this option? Can I and should I use parts of the old code (from versions using this option)?

MONGOOSE_CGI functionality should be enough.

Please let me know if you have any troubles.

[Dimitar D. Mitov]

Hi Sergey!

And thanks for the fast reply and the usefull web server!

When I type

export MONGOOSE_CGI=PERL5LIB=/home/knoppix/github/peb/perl/lib

before starting Mongoose, my CGI scripts get environment variable 'MONGOOSE_CGI' with a value 'PERL5LIB=/home/knoppix/github/peb/perl/lib', but I want that every CGI script will get environment variable ''PERL5LIB' with a value '/home/knoppix/github/peb/perl/lib', so that Perl modules not on PATH will be loaded without any modifications in the scripts. I can easily read a custom environment variable from a Perl script, take folder name from that variable and load modules from that folder, but that means to modify every script with a non-core module and I want to avoid that. After all, if I'm going to modify all scripts, I can take advantage of 'use lib' command and load modules from whatever location, so the custom environment variable will not help me much.

I think the old approach from http://mongoose.googlecode.com/svn/wiki/MongooseManual.wiki is of more use for me:

' -cgi_env list

	     Pass environment variables to the CGI script in addition to stan-
	     dard ones.  The list must be comma-separated list of X=Y pairs,
	     like this: "VARIABLE1=VALUE1,VARIABLE2=VALUE2".  Default: not 

set.'

because I can set not only a value of a custom environment variable, but names and values of environment variables (more than one, if necessary, which I think is also usefull).

So my renewed question is can I reintroduce the old code, which 'injects' custom names & values of environment variables in the CGI environment? Is it still compatible with the current code base?

With best wishes,

Dimitar

[Sergey Lyubka]

Note: PERLLIB is passed to CGI scripts independently, there is no need

to wrap it in MONGOOSE_CGI. Just export PERLLIB before starting mongoose.

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[Sergey Lyubka]

You're welcome Dimitar.  

Good point about documentation.

I've added notes about environment to http://cesanta.com/docs.html?Options.md

Sergey.

[Dimitar D. Mitov]

Hi Sergey!

The documentation is now even better and exhaustive!

It is friendly to new users and so should it be!

Thanks and with all the best wishes,

Dimitar