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inc/inc_File-Fetch/File/Fetch.pm  view on Meta::CPAN

        ### method is blacklisted ###
        next if grep { lc $_ eq $method } @$BLACKLIST;

        ### method is known to fail ###
        next if $METHOD_FAIL->{$method};

        ### there's serious issues with IPC::Run and quoting of command
        ### line arguments. using quotes in the wrong place breaks things,
        ### and in the case of say, 
        ### C:\cygwin\bin\wget.EXE --quiet --passive-ftp --output-document
        ### "index.html" "http://www.cpan.org/index.html?q=1&y=2"
        ### it doesn't matter how you quote, it always fails.
        local $IPC::Cmd::USE_IPC_RUN = 0;
        
        if( my $file = $self->$sub( 
                        to => File::Spec->catfile( $to, $self->output_file )
        )){

            unless( -e $file && -s _ ) {
                $self->_error(loc("'%1' said it fetched '%2', ".
                     "but it was not created",$method,$file));

                ### mark the failure ###
                $METHOD_FAIL->{$method} = 1;

                next;

            } else {

                my $abs = File::Spec->rel2abs( $file );
                return $abs;
            }
        }
    }


    ### if we got here, we looped over all methods, but we weren't able
    ### to fetch it.
    return;
}

########################
### _*_fetch methods ###
########################

### LWP fetching ###
sub _lwp_fetch {
    my $self = shift;
    my %hash = @_;

    my ($to);
    my $tmpl = {
        to  => { required => 1, store => \$to }
    };
    check( $tmpl, \%hash ) or return;

    ### modules required to download with lwp ###
    my $use_list = {
        LWP                 => '0.0',
        'LWP::UserAgent'    => '0.0',
        'HTTP::Request'     => '0.0',
        'HTTP::Status'      => '0.0',
        URI                 => '0.0',

    };

    if( can_load(modules => $use_list) ) {

        ### setup the uri object
        my $uri = URI->new( File::Spec::Unix->catfile(
                                    $self->path, $self->file
                        ) );

        ### special rules apply for file:// uris ###
        $uri->scheme( $self->scheme );
        $uri->host( $self->scheme eq 'file' ? '' : $self->host );
        $uri->userinfo("anonymous:$FROM_EMAIL") if $self->scheme ne 'file';

        ### set up the useragent object
        my $ua = LWP::UserAgent->new();
        $ua->timeout( $TIMEOUT ) if $TIMEOUT;
        $ua->agent( $USER_AGENT );
        $ua->from( $FROM_EMAIL );
        $ua->env_proxy;

        my $res = $ua->mirror($uri, $to) or return;

        ### uptodate or fetched ok ###
        if ( $res->code == 304 or $res->code == 200 ) {
            return $to;

        } else {
            return $self->_error(loc("Fetch failed! HTTP response: %1 %2 [%3]",
                        $res->code, HTTP::Status::status_message($res->code),
                        $res->status_line));
        }

    } else {
        $METHOD_FAIL->{'lwp'} = 1;
        return;
    }
}

### Net::FTP fetching
sub _netftp_fetch {
    my $self = shift;
    my %hash = @_;

    my ($to);
    my $tmpl = {
        to  => { required => 1, store => \$to }
    };
    check( $tmpl, \%hash ) or return;

    ### required modules ###
    my $use_list = { 'Net::FTP' => 0 };

    if( can_load( modules => $use_list ) ) {

        ### make connection ###
        my $ftp;