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lib/CPAN/Uploader.pm  view on Meta::CPAN

use strict;
use warnings;
package CPAN::Uploader;
# ABSTRACT: upload things to the CPAN
$CPAN::Uploader::VERSION = '0.103007';
=head1 ORIGIN

This code is mostly derived from C<cpan-upload-http> by Brad Fitzpatrick, which
in turn was based on C<cpan-upload> by Neil Bowers.  I (I<rjbs>) didn't want to
have to use a C<system> call to run either of those, so I refactored the code
into this module.

=cut

use Carp ();
use File::Basename ();
use File::HomeDir ();
use File::Spec;
use HTTP::Tiny::UA;
use HTTP::Tiny::Multipart;
use URI;

use constant ALT => 'tinyua';

my $UPLOAD_URI = $ENV{CPAN_UPLOADER_UPLOAD_URI}
              || 'https://pause.perl.org/pause/authenquery';

=method upload_file

  CPAN::Uploader->upload_file($file, \%arg);

  $uploader->upload_file($file);

Valid arguments are:

  user       - (required) your CPAN / PAUSE id
  password   - (required) your CPAN / PAUSE password
  subdir     - the directory (under your home directory) to upload to
  http_proxy - uri of the http proxy to use
  upload_uri - uri of the upload handler; usually the default (PAUSE) is right
  debug      - if set to true, spew lots more debugging output

This method attempts to actually upload the named file to the CPAN.  It will
raise an exception on error.

=cut

sub upload_file {
  my ($self, $file, $arg) = @_;

  Carp::confess(q{don't supply %arg when calling upload_file on an object})
    if $arg and ref $self;

  # class call with no args is no good
  Carp::confess(q{need to supply %arg when calling upload_file from the class})
    if not (ref $self) and not $arg;

  $self = $self->new($arg) if $arg;

  if ($arg->{dry_run}) {
    require Data::Dumper;
    $self->log("By request, cowardly refusing to do anything at all.");
    $self->log(
      "The following arguments would have been used to upload: \n"
      . '$self: ' . Data::Dumper::Dumper($self)
      . '$file: ' . Data::Dumper::Dumper($file)
    );
  } else {
    $self->_upload($file);
  }
}

sub _ua_string {
  my ($self) = @_;
  my $class   = ref $self || $self;
  my $version = defined $class->VERSION ? $class->VERSION : 'dev';

  return "$class/$version";
}

sub target { shift->{target} || 'PAUSE' }

sub _upload {
  my $self = shift;
  my $file = shift;

  $self->log("registering upload with " . $self->target . " web server");

  my $agent = HTTP::Tiny::UA->new(
    agent => $self->_ua_string,
    ($self->{http_proxy} ? (http_proxy => $self->{http_proxy}) : ()),
  );

  my $uri = URI->new($self->{upload_uri} || $UPLOAD_URI);
  $uri->userinfo(join ':', $self->{user}, $self->{password});

  # Make the request to the PAUSE web server
  $self->log("POSTing upload for $file to $uri");
  my $response = $agent->post_multipart($uri, {
    HIDDENNAME                        => $self->{user},
    CAN_MULTIPART                     => 1,
    pause99_add_uri_upload            => File::Basename::basename($file),
    SUBMIT_pause99_add_uri_httpupload => " Upload this file from my disk ",
    pause99_add_uri_uri               => "",
    pause99_add_uri_httpupload        => {
      filename => $file,
      content  => do {open my $fh, '<', $file; binmode $fh; local $/ = <$fh>},
    },
    ($self->{subdir} ? (pause99_add_uri_subdirtext => $self->{subdir}) : ()),
  });

  # So, how'd we do?
  if (not defined $response) {
    die "Request completely failed - we got undef back: $!";
  }

  if (!$response->success) {
    if ($response->status eq '404') {
      die $self->target, "'s CGI for handling messages seems to have moved!\n",
        "(HTTP response code of 404 from the ", $self->target, " web server)\n",
        "It used to be: ", $uri, "\n",
        "Please inform the maintainer of @{[__PACKAGE__]}.\n";
    } else {
      die "request failed with error code ", $response->status,
        "\n  Message: ", $response->reason, "\n";
    }
  } else {
    $self->log_debug($_) for (
      "Looks OK!",
      "----- RESPONSE BEGIN -----\n" .
      $response->content . "\n" .
      "----- RESPONSE END -------\n"
    );

    $self->log($self->target . " add message sent ok [" . $response->status . "]");
  }
}


=method new

  my $uploader = CPAN::Uploader->new(\%arg);

This method returns a new uploader.  You probably don't need to worry about
this method.

Valid arguments are the same as those to C<upload_file>.

=cut

sub new {
  my ($class, $arg) = @_;

  $arg->{$_} or Carp::croak("missing $_ argument") for qw(user password);
  bless $arg => $class;
}

=method read_config_file

  my $config = CPAN::Uploader->read_config_file( $filename );

This reads the config file and returns a hashref of its contents that can be
used as configuration for CPAN::Uploader.

If no filename is given, it looks for F<.pause> in the user's home directory
(from the env var C<HOME>, or the current directory if C<HOME> isn't set).

See L<cpan-upload/CONFIGURATION> for the config format.

=cut

sub read_config_file {
  my ($class, $filename) = @_;

  unless (defined $filename) {
    my $home  = File::HomeDir->my_home || '.';
    $filename = File::Spec->catfile($home, '.pause');

    return {} unless -e $filename and -r _;
  }

  my %conf;
  if ( eval { require Config::Identity } ) {
    %conf = Config::Identity->load($filename);
    $conf{user} = delete $conf{username} unless $conf{user};
  }
  else { # Process .pause manually
    open my $pauserc, '<', $filename
      or die "can't open $filename for reading: $!";

    while (<$pauserc>) {
      chomp;
      next unless $_ and $_ !~ /^\s*#/;

      my ($k, $v) = /^\s*(\w+)\s+(.+)$/;
      Carp::croak "multiple enties for $k" if $conf{$k};
      $conf{$k} = $v;
    }
  }

  return \%conf;
}

=method log

  $uploader->log($message);

This method logs the given string.  The default behavior is to print it to the
screen.  The message should not end in a newline, as one will be added as
needed.

=cut

sub log {
  shift;
  print "$_[0]\n"
}

=method log_debug

This method behaves like C<L</log>>, but only logs the message if the
CPAN::Uploader is in debug mode.

=cut

sub log_debug {
  my $self = shift;
  return unless $self->{debug};
  $self->log($_[0]);
}

1;