I didn't get any responses here or on IRC so I'm posting the solution I went with to get it archived.
Keith Lawson 11/29/13 10:22 AM >>> Hello,
I'm working on my first Dancer application and want to deploy it in our standard server environment here.
For authentication/authz we have custom mod_perl auth handlers that set Apache environment variables with user ID, group membership etc. >I'm trying to write an implementation of Dancer::Plugin::Auth::Extensible::Provider that does auth/authz by reading those environment variables however %ENV isn't populated in my Dancer app. Looking at the source of public/dispatch.fcgi I noticed the following:
# For some reason Apache SetEnv directives dont propagate # correctly to the dispatchers, so forcing PSGI and env here # is safer. set apphandler => 'PSGI'; set environment => 'production';
Can anyone tell me if it's possible to get %ENV through to my Dancer app or perhaps a different approach for auth/authz that uses $ENV{REMOTE_USER} and our custom Apache environment variables?
I never did get FCGI to work so I tried regular CGI, here's my apache config for my app: SetEnv DANCER_ENVIRONMENT "development" <Directory "/var/dancerdev/filesafe"> AllowOverride None Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch Order allow,deny Allow from all AddHandler cgi-script .cgi </Directory> ScriptAlias /filesafe /var/dancerdev/filesafe/public/dispatch.cgi This works but I had to comment out where %ENV keys were explicitly set in dispatch.cgi so that the Apache conf directives for dev/prod environment worked properly: --- dispatch.cgi.dist 2013-12-05 09:21:35.917592251 -0500 +++ dispatch.cgi 2013-12-05 09:20:06.912736198 -0500 @@ -6,8 +6,8 @@ # For some reason Apache SetEnv directives dont propagate # correctly to the dispatchers, so forcing PSGI and env here # is safer. -set apphandler => 'PSGI'; -set environment => 'production'; +# set apphandler => 'PSGI'; +# set environment => 'production'; my $psgi = path($RealBin, '..', 'bin', 'app.pl'); die "Unable to read startup script: $psgi" unless -r $psgi; My first crack at doing Dancer auth/authz was to write a provider for Dancer::Plugin::Auth::Extensible with subs that rely on %ENV like this: sub authenticate_user { my ($self, $username, $password) = @_; return $ENV{REMOTE_USER}; } However I couldn't figure out why $ENV{REMOTE_USER} wasn't getting to the plugin so I gave up. I just ended up protecting portions of my new app with a <Location> stanza using our Apache2::AuthCookie auth handlers: <Location /filesafe/priv> order allow,deny allow from all AuthType Site::LDAPCookieHandler2 AuthName dancerdev PerlAuthenHandler Site::LDAPCookieHandler2->authenticate PerlAuthzHandler Site::LDAPCookieHandler2->authorize require valid-user satisfy all </Location> Then in my dancer app I protect portions like this: get '/priv/hello' => sub { die unless $ENV{REMOTE_USER}; return "Hi there ".$ENV{REMOTE_USER}; }; This won't solve authorization for me but I won't have a need for this in this app.
Thanks, Keith.
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