# Blosxom Plugin: ping_weblogs_com
# Author(s): Rael Dornfest <rael@oreilly.com> 
# Version: 2.0b4
# Documentation: See the bottom of this file or type: perldoc ping_weblogs_com

package ping_weblogs_com;

# --- Configurable variables -----

# What URL should this plugin ping?
my $ping_url = "http://newhome.weblogs.com/pingSiteForm?name=" . encode($blosxom::blog_title) . "&url=" . encode($blosxom::url);

# What external program should this plugin use to ping Weblogs.com?
# 'lynx -source'
# 'wget --quiet -U "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)" -O -';
# 'curl -m 30 -s'
my $get_app = '';

# --------------------------------

use FileHandle;
use File::stat;

# Keep track of the newest story's mtime
my $newest = 0;

sub start {
  $get_app or return 0;
print STDERR "here\n";
  1;
}

sub filter {
  my($pkg, $files_ref) = @_;

  $newest = $files_ref->{( sort { $files_ref->{$b} <=> $files_ref->{$a} } keys %$files_ref )[0]};

  1;
}

sub end {
  # If no timestamped touch-file or newest is newer than the touch-file...
  if ( !-e "$blosxom::plugin_state_dir/.ping_weblogs_com.output" or $newest > stat("$blosxom::plugin_state_dir/.ping_weblogs_com.output")->mtime ) {

    my $response = '';
    my $ping_success = 0;
    my $fh = new FileHandle;
    $fh->open(qq{$get_app "$ping_url" |});
    while (<$fh>) {
      $response .= $_;
      $_ =~ /Thanks for the ping/ and $ping_success++, last;
    }
    $fh->close();

    $ping_success or return 0;

    # Touch the touchfile (creates if doesn't already exist)
    open TOUCH, "> $blosxom::plugin_state_dir/.ping_weblogs_com.output";
    print TOUCH $response;
    close TOUCH;
  
    return 1;
  }  

  return 1;
}  

sub encode {
  my($string) = @_;

  my %encodings;
  for (0..255) {
    $encodings{chr($_)} = sprintf("%%%02X", $_);
  }

  $string =~ s/([^A-Za-z0-9\-_.!~*'()])/$encodings{$1}/g;
  return $string;
}

1;

__END__

=head1 NAME

Blosxom Plug-in: ping_weblogs_com

=head1 SYNOPSIS

Purpose: Notifies weblogs.com [http://www.weblogs.com] that your weblog
has been updated upon encountering any new story. 

Maintains a touch-file ($blosxom::plugin_state_dir/.ping_weblogs_com.output)
to which to compare the newest story's creation date.  Fills the
touch-file with the HTML results of the latest ping.

=head1 VERSION

2.0b3

Version number coincides with the version of Blosxom with which the 
current version was first bundled.

=head1 AUTHOR

Rael Dornfest  <rael@oreilly.com>, http://www.raelity.org/

This plugin is now maintained by the Blosxom Sourceforge Team,
<blosxom-devel@lists.sourceforge.net>.

=head1 SEE ALSO

Blosxom Home/Docs/Licensing: http://blosxom.sourceforge.net/

Blosxom Plugin Docs: http://blosxom.sourceforge.net/documentation/users/plugins.html

=head1 BUGS

None known; please send bug reports and feedback to the Blosxom
development mailing list <blosxom-devel@lists.sourceforge.net>.

=head1 LICENSE

Blosxom and this Blosxom Plug-in
Copyright 2003, Rael Dornfest 

Permission is hereby granted, free of charge, to any person obtaining a
copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.