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# |
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# |
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# Copyright (C) 2006-2010 Andrew Speer . |
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# All rights reserved. |
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# |
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# This file is part of WebDyne::Session. |
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# |
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# WebDyne::Session is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# |
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package WebDyne::Session; |
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# Compiler Pragma |
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# |
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sub BEGIN { $^W=0 }; |
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use strict qw(vars); |
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use vars qw($VERSION); |
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use warnings; |
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no warnings qw(uninitialized); |
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# WebDyne Modules. |
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# |
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1
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use WebDyne::Session::Constant; |
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use WebDyne::Base; |
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# External modules |
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# |
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use Digest::MD5 qw(md5_hex); |
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1
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1384
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use CGI::Cookie; |
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10891
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# Version information |
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# |
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$VERSION='1.044'; |
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# Shortcut error handler. |
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# |
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require WebDyne::Err; |
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*err_html=\&WebDyne::Err::err_html || *err_html; |
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58
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59
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# Debug |
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# |
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0 && debug("%s loaded, version $VERSION", __PACKAGE__); |
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63
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64
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# And done |
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# |
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1; |
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68
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69
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#------------------------------------------------------------------------------ |
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71
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sub import { |
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# Will only work if called from within a __PERL__ block in WebDyne |
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# |
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1
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1
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my $self_cr=UNIVERSAL::can(scalar caller, 'self') || return; |
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0
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0
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my $self=$self_cr->() || return; |
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#$self->set_handler('WebDyne::Session'); |
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0
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$self->set_handler('WebDyne::Chain'); |
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0
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my $meta_hr=$self->meta(); |
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0
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push @{$meta_hr->{'webdynechain'}}, __PACKAGE__; |
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84
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85
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} |
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87
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88
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sub handler : method { |
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90
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91
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# Get class, request object |
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# |
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0
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0
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my ($self, $r, $param_hr)=@_; |
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95
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96
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# Debug |
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# |
98
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0
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0 && debug("in %s handler, self $self, r $r, param_hr $param_hr", __PACKAGE__); |
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100
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101
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# Get cookie from header |
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# |
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my $header_hr=$r->headers_in() || |
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return err('unable to get header hash ref'); |
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0
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my $cookie=$header_hr->{'cookie'}; |
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0
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0 && debug("cookie $cookie"); |
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108
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109
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# Get cookies hash |
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# |
111
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0
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my %cookies=$cookie ? CGI::Cookie->parse($cookie) : (); |
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113
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114
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# Get cookie name we are looking for |
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# |
116
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0
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my $cookie_name=$WEBDYNE_SESSION_ID_COOKIE_NAME; |
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118
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119
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# Get or set the cookie id |
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# |
121
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0
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my $session_id; |
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0
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0
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0
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unless ($session_id=($cookies{$cookie_name} && $cookies{$cookie_name}->value())) { |
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124
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125
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# Debug |
126
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# |
127
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0
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0 && debug('session cookie not found, generating new session_id'); |
128
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129
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130
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# Generate a new session id based on an MD5 checksum |
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# |
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0
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$session_id=&Digest::MD5::md5_hex(rand($$.time())); |
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0
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0 && debug("generated new session_id $session_id"); |
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135
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136
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137
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# If no session id now, something has gone horribly wrong |
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# |
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0
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0
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$session_id || return $self->err_html( |
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'unable to create unique session id'); |
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142
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143
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# Debug |
144
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# |
145
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0
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0 && debug("session_id generation success, generated id $session_id"); |
146
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147
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148
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149
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# Create a cookie with out session id |
150
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# |
151
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0
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0
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my $cookie=CGI::Cookie->new( |
152
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153
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-name => $cookie_name, |
154
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-value => $session_id, |
155
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-path => '/' |
156
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157
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) || return $self->err_html("unable to generate sid: $session_id cookie"); |
158
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159
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160
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# Get our header hash ref |
161
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# |
162
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0
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0
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my $header_hr=$r->headers_out() || |
163
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return $self->err_html('unable to get outbound headers'); |
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165
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166
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# Reinstall the new cookie into the params that will be passed |
167
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# to our base header function |
168
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# |
169
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0
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$header_hr->{'Set-cookie'}=$cookie; |
170
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171
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172
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} |
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174
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175
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# Set in class _self area so will be propogated to next blessed self ref |
176
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# |
177
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0
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$self->{'_session_id'}=$session_id; |
178
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179
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180
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# All done, chain to next handler |
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# |
182
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0
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$self->SUPER::handler($r, @_[2..$#_]); |
183
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184
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185
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} |
186
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187
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188
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189
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sub session_id { |
190
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191
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192
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# Accessor for session_id var, set in handler above |
193
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# |
194
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0
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0
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0
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my $self=shift(); |
195
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0
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return $self->{'_session_id'}; |
196
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197
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198
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} |
199
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200
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__END__ |