Upload post to blogger with Perl/Python (OAuth 2.0 authorozation)

blogger_upload.pl

#!/usr/bin/perl
# *** Wyslanie posta na blogger.com ***
use strict;
use LWP::UserAgent;
use XML::LibXML;
use Getopt::Long;

my $profileID="default";
my $blogID = '1928418645181504144'; # Identyfikator bloga
my $blog_entry ;

## Na wypadek gdy ktoś ma kilka blogów moża podać na któr
## ma być wysłany post używając opcji -blog
GetOptions( "blog=s" => \$blogID, "post=s" => \$blog_entry) ;

if ( $blog_entry eq '' ) {
print STDERR "*** USAGE: $0 -b blog -p message (-b is optional) ***\n" }

## sprawdź czy post jest well formed:
my $parser = XML::LibXML->new();
eval {my $res_  = $parser->parse_string($blog_entry) };
if ($@) { die "*** Error parsing post message! \n"; }

my $ACCESS_TOKEN=`oauth2blogger.py`; # ACCESS_TOKEN via python script see https://gist.github.com/hrpunio/da9d1a7c49a07a27d874
print STDERR "*** AccessToken: $ACCESS_TOKEN ***\n";

my $req = HTTP::Request->new(
  POST => "https://www.blogger.com/feeds/$blogID/posts/default");

$req->header( 'Content-Type' => 'application/atom+xml' );
$req->header( 'Authorization' => "Bearer $ACCESS_TOKEN" );
$req->header( 'GData-Version' => '2' );

$req->content($blog_entry);

my $ua = LWP::UserAgent->new;
my $res = $ua->request($req);

# Jeżeli coś jest nie tak poniższe drukuje verbatim:
# http://www.perlmonks.org/bare/?node_id=464442
# $ua->prepare_request($req); print($req->as_string); exit ;

if ($res->is_success) {
   my $decoded_response = $res->decoded_content;
   print STDERR "*** OK *** $decoded_response\n"; }
else { die $res->status_line; }