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package Plack::Middleware::Session::Simple; |
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962
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use 5.008005; |
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use strict; |
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use warnings; |
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1080
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use parent qw/Plack::Middleware/; |
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415
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use Digest::SHA1 qw//; |
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use Cookie::Baker; |
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use Plack::Util; |
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use Scalar::Util qw/blessed/; |
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use Plack::Util::Accessor qw/ |
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store |
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cookie_name |
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sid_generator |
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sid_validator |
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keep_empty |
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path |
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domain |
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expires |
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secure |
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httponly |
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/; |
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our $VERSION = "0.02"; |
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sub prepare_app { |
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my $self = shift; |
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my $store = $self->store; |
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die('store require get, set and remove method.') |
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unless blessed $store |
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&& $store->can('get') |
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&& $store->can('set') |
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&& $store->can('remove'); |
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$self->cookie_name('simple_session') unless $self->cookie_name; |
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$self->path('/') unless defined $self->path; |
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$self->keep_empty(1) unless defined $self->keep_empty; |
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if ( !$self->sid_generator ) { |
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$self->sid_generator(sub{ |
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Digest::SHA1::sha1_hex(rand() . $$ . {} . time) |
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}); |
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} |
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if ( !$self->sid_validator ) { |
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$self->sid_validator( |
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qr/\A[0-9a-f]{40}\Z/ |
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); |
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} |
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} |
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sub call { |
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my ($self,$env) = @_; |
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my($id, $session) = $self->get_session($env); |
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my $tied; |
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if ($id && $session) { |
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$tied = tie my %session, |
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'Plack::Middleware::Session::Simple::Session', %$session; |
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$env->{'psgix.session'} = \%session; |
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$env->{'psgix.session.options'} = { |
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id => $id, |
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}; |
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} else { |
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my $id = $self->{sid_generator}->(); |
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$tied = tie my %session, |
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'Plack::Middleware::Session::Simple::Session'; |
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$env->{'psgix.session'} = \%session; |
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$env->{'psgix.session.options'} = { |
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id => $id, |
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new_session => 1, |
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}; |
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} |
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my $res = $self->app->($env); |
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$self->response_cb( |
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$res, sub { |
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$self->finalize($env, $_[0], $tied) |
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} |
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); |
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} |
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sub get_session { |
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my ($self, $env) = @_; |
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my $cookie = crush_cookie($env->{HTTP_COOKIE} || '')->{$self->{cookie_name}}; |
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return unless defined $cookie; |
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return unless $cookie =~ $self->{sid_validator}; |
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my $session = $self->{store}->get($cookie) or return; |
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return ($cookie, $session); |
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} |
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sub finalize { |
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my ($self, $env, $res, $session) = @_; |
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my $options = $env->{'psgix.session.options'}; |
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my $new_session = delete $options->{new_session}; |
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my $need_store; |
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if ( ($new_session && $self->{keep_empty} && ! $session->has_key ) |
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|| $session->[1] || $options->{expire} || $options->{change_id}) { |
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$need_store = 1; |
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} |
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$need_store = 0 if $options->{no_store}; |
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my $set_cookie; |
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if ( ($new_session && $self->{keep_empty} && ! $session->has_key ) |
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|| ($new_session && $session->[1] ) |
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|| $options->{expire} || $options->{change_id}) { |
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$set_cookie = 1; |
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} |
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if ( $need_store ) { |
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if ($options->{expire}) { |
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$self->{store}->remove($options->{id}); |
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} elsif ($options->{change_id}) { |
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$self->{store}->remove($options->{id}); |
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$options->{id} = $self->{sid_generator}->(); |
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$self->{store}->set($options->{id}, $session->[0]); |
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} else { |
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$self->{store}->set($options->{id}, $session->[0]); |
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} |
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} |
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127
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if ( $set_cookie ) { |
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if ($options->{expire}) { |
129
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$self->_set_cookie( |
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$options->{id}, $res, %$options, expires => 'now'); |
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} else { |
132
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$self->_set_cookie( |
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$options->{id}, $res, %$options); |
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} |
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} |
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} |
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138
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sub _set_cookie { |
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my($self, $id, $res, %options) = @_; |
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141
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delete $options{id}; |
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143
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$options{path} = $self->{path} || '/' if !exists $options{path}; |
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$options{domain} = $self->{domain} if !exists $options{domain} && defined $self->{domain}; |
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$options{secure} = $self->{secure} if !exists $options{secure} && defined $self->{secure}; |
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$options{httponly} = $self->{httponly} if !exists $options{httponly} && defined $self->{httponly}; |
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148
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if (!exists $options{expires} && defined $self->{expires}) { |
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$options{expires} = $self->{expires}; |
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} |
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152
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my $cookie = bake_cookie( |
153
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$self->{cookie_name}, { |
154
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value => $id, |
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%options, |
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} |
157
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); |
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Plack::Util::header_push($res->[1], 'Set-Cookie', $cookie); |
159
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} |
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161
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1; |
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163
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package Plack::Middleware::Session::Simple::Session; |
164
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165
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use strict; |
166
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use warnings; |
167
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use Tie::Hash; |
168
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use base qw/Tie::ExtraHash/; |
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170
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sub TIEHASH { |
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my $class = shift; |
172
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bless [{@_},0, scalar @_], $class; |
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} |
174
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175
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sub STORE { |
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$_[0]->[1]++; |
177
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$_[0]->[0]{$_[1]} = $_[2] |
178
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} |
179
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180
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sub DELETE { |
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$_[0]->[1]++; |
182
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delete $_[0]->[0]->{$_[1]} |
183
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} |
184
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185
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sub CLEAR { |
186
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$_[0]->[1]++; |
187
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%{$_[0]->[0]} = () |
188
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} |
189
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190
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sub has_key { |
191
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scalar keys %{$_[0]->[0]} |
192
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} |
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194
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1; |
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196
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__END__ |