view release on metacpan or  search on metacpan

lib/Amazon/S3/Thin.pm  view on Meta::CPAN

package Amazon::S3::Thin;
use 5.008001;
use strict;
use warnings;
use Carp;
use LWP::UserAgent;
use Digest::MD5;
use Encode;
use Amazon::S3::Thin::Resource;
use Amazon::S3::Thin::Credentials;

our $VERSION = '0.32';

my $METADATA_PREFIX      = 'x-amz-meta-';
my $MAIN_HOST = 's3.amazonaws.com';

sub new {
    my $class = shift;
    my $self  = shift;

    # If we have an explicitly-configured credential provider then use that here, otherwise
    # existing behaviour will be followed
    if ($self->{credential_provider} and $self->{credential_provider} eq 'env') {
        $self->{credentials} = Amazon::S3::Thin::Credentials->from_env;
    }
    elsif ($self->{credential_provider} and $self->{credential_provider} eq 'metadata') {
        $self->{credentials} = Amazon::S3::Thin::Credentials->from_metadata($self);
    }
    elsif ($self->{credential_provider} and $self->{credential_provider} eq 'ecs_container') {
        $self->{credentials} = Amazon::S3::Thin::Credentials->from_ecs_container($self);
    }
    else {
        # check existence of credentials
        croak "No aws_access_key_id"     unless $self->{aws_access_key_id};
        croak "No aws_secret_access_key" unless $self->{aws_secret_access_key};

        # wrap credentials
        $self->{credentials} = Amazon::S3::Thin::Credentials->new(
            $self->{aws_access_key_id},
            $self->{aws_secret_access_key},
            $self->{aws_session_token},
        );
        delete $self->{aws_access_key_id};
        delete $self->{aws_secret_access_key};
        delete $self->{aws_session_token};
    }
    delete $self->{credential_provider};

    bless $self, $class;

    $self->secure(0)                unless defined $self->secure;
    $self->ua($self->_default_ua)   unless defined $self->ua;
    $self->debug(0)                 unless defined $self->debug;
    $self->virtual_host(0)          unless defined $self->virtual_host;

    $self->{signature_version} = 4  unless defined $self->{signature_version};
    if ($self->{signature_version} == 4 && ! $self->{region}) {
        croak "Please set region when you use signature v4";
    }

    $self->{signer} = $self->_load_signer($self->{signature_version});
    return $self;
}

sub _load_signer {
  my $self = shift;
  my $version = shift;
  my $signer_class = "Amazon::S3::Thin::Signer::V$version";
  eval "require $signer_class" or die $@;

  if ($version == 2) {
      return $signer_class->new($self->{credentials}, $MAIN_HOST);
  } elsif ($version == 4) {
      return $signer_class->new($self->{credentials}, $self->{region});
  }
}


sub _default_ua {
    my $self = shift;

    my $ua = LWP::UserAgent->new(
        keep_alive            => 10,
        requests_redirectable => [qw(GET HEAD DELETE PUT)],
        );
    $ua->timeout(30);
    $ua->env_proxy;
    return $ua;
}

# Accessors

sub secure {
    my $self = shift;
    if (@_) {
        $self->{secure} = shift;
    } else {
        return $self->{secure};
    }
}

sub debug {
    my $self = shift;
    if (@_) {
        $self->{debug} = shift;
    } else {
        return $self->{debug};
    }
}