/usr/share/perl5/WebService/YouTube/Util.pm is in libwebservice-youtube-perl 1.0.3-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# $Id: Util.pm 11 2007-04-09 04:34:01Z hironori.yoshida $
#
package WebService::YouTube::Util;
use strict;
use warnings;
use version; our $VERSION = qv('1.0.3');
use Carp;
use LWP::UserAgent;
use URI::Escape qw(uri_escape uri_escape_utf8);
use Encode ();
sub rss_uri {
my ( $class, $type, $arg ) = @_;
if ( $type ne 'global' && $type ne 'tag' && $type ne 'user' ) {
croak "type of $type is not supported";
}
if ( Encode::is_utf8($arg) ) {
$arg = uri_escape_utf8($arg);
}
else {
$arg = uri_escape($arg);
}
if ( $type eq 'user' ) {
$arg = lc $arg . '/videos';
}
return "http://www.youtube.com/rss/$type/$arg.rss";
}
sub rest_uri {
my ( $class, $dev_id, $method, $fields ) = @_;
my $query = q{};
if ($fields) {
foreach my $key ( keys %{$fields} ) {
my $value = $fields->{$key};
if ( Encode::is_utf8($value) ) {
$value = uri_escape_utf8($value);
}
else {
$value = uri_escape($value);
}
$query .= sprintf '&%s=%s', $key, $value;
}
}
return
"http://www.youtube.com/api2_rest?dev_id=$dev_id&method=$method$query";
}
sub get_video_uri {
my ( $class, $video, $args ) = @_;
if ( !$video ) {
return;
}
$args->{ua} ||= LWP::UserAgent->new;
my ( $video_id, $video_uri );
if ( ref $video ) {
$video_id = $video->id;
$video_uri = $video->url;
}
else {
$video_id = $video;
}
$video_uri ||= "http://youtube.com/?v=$video_id";
my $res = $args->{ua}->get($video_uri);
if ( !$res->is_success ) {
carp $res->status_line;
return;
}
my $content = $res->content;
if ( $content =~ m{"/player2\.swf\?([^"]+)",\s*"movie_player"}msx ) {
return "http://youtube.com/get_video.php?$1";
}
if ( $content =~ m{\bt\b[^:]*:\s*(['"])(.+?)\1}msx ) {
return "http://youtube.com/get_video.php?video_id=$video_id&t=$2";
}
if ( $content =~ m{class="errorBox"[^>]*>\s*([^<]+?)\s*<}msx ) {
carp "$video_id: $1";
return;
}
carp "$video_id: got a page but it is invalid page\n$content";
return;
}
sub get_video {
my ( $class, $video, $args ) = @_;
if ( !$video ) {
return;
}
$args->{ua} ||= LWP::UserAgent->new;
my $video_uri = $class->get_video_uri( $video, $args );
if ( !$video_uri ) {
return;
}
my $res = $args->{ua}->get($video_uri);
if ( !$res->is_success ) {
carp $res->status_line;
return;
}
return $res->content;
}
1;
__END__
=head1 NAME
WebService::YouTube::Util - Utility for WebService::YouTube
=head1 VERSION
This document describes WebService::YouTube::Util version 1.0.3
=head1 SYNOPSIS
use WebService::YouTube::Util;
# Get an URI of RSS
my $uri = WebService::YouTube::Util->rss_uri( 'global', 'recently_added' );
# Get an URI of REST API
my $uri = WebService::YouTube::Util->rest_uri( $dev_id,
'youtube.videos.list_by_tag',
{ tag => 'monkey' }
);
# Get a downloadable URI
my $uri = WebService::YouTube::Util->get_video_uri('rdwz7QiG0lk');
# Get a video which type is .flv
my $content = WebService::YouTube::Util->get_video('rdwz7QiG0lk');
=head1 DESCRIPTION
This is an utility for L<WebService::YouTube>.
=head1 SUBROUTINES/METHODS
=head2 rss_uri( $type, $arg )
Returns a URI of RSS.
$type should be 'global' or 'tag' or 'user'.
$arg is required when $type is 'tag' or 'user'.
=head2 rest_uri( $dev_id, $method, \%fields )
Returns a URI of REST API.
$dev_id is your developer ID of YouTube.
$method is a method name like a 'youtube.*.*'.
%fields can contain optional parameter.
=head2 get_video_uri( $video, \%args )
Returns a downloadable URI of $video.
$video should be a video ID or a L<WebService::YouTube::Video> object.
%args can contain some optional arguments.
=over
=item ua
L<LWP::UserAgent> object
=back
=head2 get_video( $video, \%args )
Returns a downloaded content of $video.
$video should be a video ID or a L<WebService::YouTube::Video> object.
%args can contain some optional arguments.
=over
=item ua
L<LWP::UserAgent> object
=back
=head1 DIAGNOSTICS
=over
=item type of ... is not supported
No such RSS. The type should be 'global' or 'tag' or 'user'.
=item got a page but it is invalid page
Maybe, YouTube is being maintained. :-)
=back
=head1 CONFIGURATION AND ENVIRONMENT
WebService::YouTube::Util requires no configuration files or environment variables.
=head1 DEPENDENCIES
L<WebService::YouTube>, L<LWP::UserAgent>, L<URI::Escape>
=head1 INCOMPATIBILITIES
None reported.
=head1 BUGS AND LIMITATIONS
No bugs have been reported.
Please report any bugs or feature requests to
C<bug-webservice-youtube@rt.cpan.org>, or through the web interface at
L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=WebService-YouTube>.
I will be notified, and then you'll automatically be notified of progress on
your bug as I make changes.
=head1 AUTHOR
Hironori Yoshida <yoshida@cpan.org>
=head1 LICENSE AND COPYRIGHT
This module is free software; you can redistribute it and/or
modify it under the same terms as Perl itself. See L<perlartistic>.
=cut
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