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=encoding utf8 |
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=head1 WebService::CEPH::FileShadow |
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ÐоÑомок WebService::CEPH. |
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ÐпÑии конÑÑÑÑкÑоÑа Ñе же ÑамÑе, ÑÑо и Ñ WebService::CEPH, плÑÑ ÐµÑÑ ÐµÑÑÑ: |
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mode - 's3' или 's3-fs' или 'fs' |
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fs_shadow_path - пÑÑÑ Ðº Ñайловой ÑиÑÑеме, ÑказÑÐ²Ð°ÐµÑ Ð½Ð° диÑекÑоÑиÑ, ÑиналÑнÑй ÑлÑÑ Ð½Ðµ обÑзаÑелен. |
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Ð Ñежиме s3 вÑÑ ÑабоÑаеÑ, как WebService::CEPH, ÑÐ°Ð¹Ð»Ñ ÑкаÑиваÑÑÑÑ Ð¸ закаÑиваÑÑÑÑ Ð² CEPH по пÑоÑÐ¾ÐºÐ¾Ð»Ñ s3. |
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Ð Ñежиме 's3-fs' пÑи закаÑке Ñайла, ÑоздаÑÑÑÑ ÐµÐ³Ð¾ ÐºÐ¾Ð¿Ð¸Ñ Ð² Ñайловой ÑиÑÑеме. СнаÑала Ñайл закаÑиваеÑÑÑ Ð² s3, поÑом |
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в ÑайловÑÑ ÑиÑÑемÑ, еÑли в ÑÑо вÑÐµÐ¼Ñ ÑлÑÑиÑÑÑ Ð¸ÑклÑÑение, пÑедÑдÑÑий Ñаг не оÑменÑеÑÑÑ. |
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СкаÑивание Ñайлов пÑоиÑÑ
Ð¾Ð´Ð¸Ñ Ñ 's3', пÑи оÑибке ÑкаÑиваниÑ, никакого ÑейловеÑа на ÑайловÑÑ ÑиÑÑÐµÐ¼Ñ Ð½Ðµ пÑоизводиÑÑÑ. |
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Ð Ñежиме 'fs' закаÑивание и ÑкаÑивание Ñайлов пÑоиÑÑ
Ð¾Ð´Ð¸Ñ ÑолÑко в ÑайловÑÑ ÑиÑÑемÑ. |
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ÐеÑаинÑоÑмаÑÐ¸Ñ (x-amz-meta-md5, content-type в Ñайловой ÑиÑÑеме не ÑоÑ
ÑанÑеÑÑÑ). |
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РмеÑодаÑ
download_to_file, upload_from_file в Ñежиме Ñайловой ÑиÑÑемÑ, ÑабоÑа Ñ Ð»Ð¾ÐºÐ°Ð»ÑнÑми Ñайлами |
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делаеÑÑÑ Ð¼Ð°ÐºÑималÑно ÑовмеÑÑимо Ñ Ñежимом 's3' (пÑава (umask) пÑи Ñоздании Ñайла, ÑÐµÐ¶Ð¸Ð¼Ñ truncate и seek пÑи ÑабоÑе |
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Ñ filehandles) |
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ÐÐ¼Ñ ÐºÐ»ÑÑа обÑекÑа не должно ÑодеÑжаÑÑ Ñимволов, опаÑнÑÑ
Ð´Ð»Ñ Ñайловой ÑиÑÑÐµÐ¼Ñ (напÑÐ¸Ð¼ÐµÑ '../', '/..') инаÑе |
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бÑÐ´ÐµÑ Ð¸ÑклÑÑение. Ðднако по-наÑÑоÑÑÐµÐ¼Ñ Ð·Ð°Ð±Ð¾ÑиÑÑÑ Ð¾ безопаÑноÑÑи должен вÑзÑваÑÑий. |
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=cut |
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package WebService::CEPH::FileShadow; |
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our $VERSION = '0.015'; # VERSION |
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139532
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use strict; |
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use warnings; |
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use Carp; |
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use Fcntl qw/:seek/; |
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use File::Copy; |
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use File::Slurp qw/read_file/; |
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use File::Path qw(make_path); |
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use parent qw( WebService::CEPH ); |
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sub new { |
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my ($class, %options) = @_; |
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my %new_options; |
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$new_options{$_} = delete $options{$_} for (qw/fs_shadow_path mode/); |
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!defined or m!/$! or $_ .= '/' for $new_options{fs_shadow_path}; |
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confess "mode should be 's3', 's3-fs' or 'fs', but it is '$new_options{mode}'" |
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unless $new_options{mode} =~ /^(s3|s3\-fs|fs)$/; |
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confess "you specified mode to work with filesystem ($new_options{mode}), please define fs_shadow_path then" |
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if $new_options{mode} =~ /fs/ && !$new_options{fs_shadow_path}; |
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my $self = $class->SUPER::new(%options); |
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$self->{$_} = $new_options{$_} for keys %new_options; |
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$self; |
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} |
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sub _filepath { |
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my ($self, $key, $should_mkpath) = @_; |
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confess "key expected" unless defined $key; |
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confess "unsecure key" if $key eq '.'; |
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confess "unsecure key" if $key =~ m!\.\./!; |
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confess "unsecure key" if $key =~ m!/\.\.!; |
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confess "constructor should normalize path" unless $self->{fs_shadow_path} =~ m!/$!; |
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my $dir = $self->{fs_shadow_path}.$self->{bucket}."/"; |
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make_path($dir) if ($should_mkpath); |
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$dir.$key; |
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} |
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sub upload { |
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my ($self, $key) = (shift, shift); |
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if ($self->{mode} =~ /s3/) { |
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$self->SUPER::upload($key, $_[0], $_[1]); |
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} |
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if ($self->{mode} =~ /fs/) { |
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my $path = $self->_filepath($key, 1); |
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open my $f, ">", $path or confess; |
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binmode $f; |
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print $f $_[0] or confess; |
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close $f or confess; |
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} |
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} |
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sub upload_from_file { |
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my ($self, $key, $fh_or_filename, $content_type) = @_; |
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if ($self->{mode} =~ /s3/) { |
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$self->SUPER::upload_from_file($key, $fh_or_filename, $content_type); |
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} |
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if ($self->{mode} =~ /fs/) { |
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my $path = $self->_filepath($key, 1); |
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seek($fh_or_filename, 0, SEEK_SET) if (ref $fh_or_filename); |
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copy($fh_or_filename, $path); |
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} |
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} |
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sub download { |
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my ($self, $key) = @_; |
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if ($self->{mode} =~ /s3/) { |
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return $self->SUPER::download($key); |
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} |
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elsif ($self->{mode} =~ /fs/) { |
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return scalar read_file( $self->_filepath($key), binmode => ':raw' ) |
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} |
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} |
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sub download_to_file { |
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my ($self, $key, $fh_or_filename) = @_; |
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if ($self->{mode} =~ /s3/) { |
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$self->SUPER::download_to_file($key, $fh_or_filename); |
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} |
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elsif ($self->{mode} =~ /fs/) { |
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copy( $self->_filepath($key), $fh_or_filename ); |
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} |
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} |
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sub size { |
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my ($self, $key) = @_; |
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if ($self->{mode} =~ /s3/) { |
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return $self->SUPER::size($key); |
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} |
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elsif ($self->{mode} =~ /fs/) { |
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return -s $self->_filepath($key); |
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} |
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} |
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sub delete { |
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my ($self, $key) = @_; |
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if ($self->{mode} =~ /s3/) { |
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$self->SUPER::delete($key); |
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} |
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elsif ($self->{mode} =~ /fs/) { |
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unlink($self->_filepath($key)); |
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} |
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} |
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149
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sub query_string_authentication_uri { |
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my ($self, $key, $expires) = @_; |
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if ($self->{mode} =~ /s3/) { |
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$self->SUPER::query_string_authentication_uri($key, $expires); |
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} |
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else { |
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confess "Unimplemented in fs mode"; |
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} |
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} |
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160
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1; |