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#!/usr/bin/perl -w

################################################################
#
# Copyright (c) 1995-2014 SUSE Linux Products GmbH
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 or 3 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program (see the file COPYING); if not, write to the
# Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
#
################################################################

use Net::SSL ();
BEGIN {
  $ENV{PERL_LWP_SSL_VERIFY_HOSTNAME} = 0,
  unshift @INC, ($::ENV{'BUILD_DIR'} || '/usr/lib/build');
}

use LWP::UserAgent;
use URI;
use File::Path;
use File::Basename;

use strict;

sub hide_passwd {
    my $url = shift;
    $url =~ s|://[^@]*@|://|;
    return $url
}

die "USAGE: $0 DIR URLS..." unless $#ARGV >= 1;

my $dir = shift @ARGV;

my $ua = LWP::UserAgent->new(
  agent => "openSUSE build script",
  timeout => 42);

for my $url (@ARGV) {
  my $original = $url;
  if ($url =~ /^zypp:\/\/([^\/]*)\/?/) {
    use Build::Zypp;
    my $repo = Build::Zypp::parserepo($1);
    die "can't parse $1\n" unless $repo;
    die "missing url in repo ".$repo->{'name'}."\n" unless exists $repo->{'baseurl'};
    my $u = $repo->{'baseurl'};
    $u .= '/' unless $u =~ /\/$/;
    $url =~ s/^zypp:\/\/[^\/]*\/*//;
    $url = URI->new($u.$url);
    if ($url->scheme eq 'dir') {
      my $dest = "$dir/".basename($url->path);
      unlink($dest);	# just in case
      system('cp', $url->path, $dest) && die("cp $url->path $dest failed\n");
      last;
    }
  } else {
    my $found = 0;
    if ( defined $ENV{BUILD_ROOT} && -e $ENV{BUILD_ROOT} . "/.repo.config" ) {
        open FILE, "<", $ENV{BUILD_ROOT} . "/.repo.config" or die $!;
        while (<FILE>) {
            next if ($_ !~ /^http[s]?:\/\/([^\/]*)\/?/);
            chomp($_);
            my $hidden = URI->new($_);
            my $ui = $hidden->userinfo;
            $hidden->userinfo(undef);
            if ( $url =~ m/^$hidden/ ) {
                $url = URI->new($url);
                $url->userinfo($ui);
                $found = 1;
                last;
            }
        }
        close FILE;
    }
    if ($found == 0 ) {
        $url = URI->new($url);
    }
  }
  $ua->env_proxy  if $url->scheme ne 'https';
  my $dest = "$dir/".basename($url->path);
  unlink($dest);	# just in case
  my $retry = 3;
  while ($retry--) {
    my $res = $ua->mirror($url, $dest);
    last if $res->is_success;
    # if it's a redirect we probably got a bad mirror and should just retry
    die "reqesting " . hide_passwd($original) . " failed: ".$res->status_line."\n" unless $retry && $res->previous;
    warn "retrying " . hide_passwd($original) . "\n";
  }
}

# vim:sw=2