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package Prancer::Session::Store::Database::Driver; |
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2412
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use strict; |
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109
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use warnings FATAL => 'all'; |
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use Plack::Session::Store; |
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use parent qw(Plack::Session::Store); |
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204
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use Carp; |
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use YAML; |
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use Try::Tiny; |
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use Prancer qw(logger); |
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2781
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sub new { |
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my ($class, $config) = @_; |
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17
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try { |
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require DBI; |
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} catch { |
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my $error = (defined($_) ? $_ : "unknown"); |
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logger->fatal("could not initialize session handler: could not load DBI: ${error}"); |
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croak; |
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}; |
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unless ($config->{'database'}) { |
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logger->fatal("could not initialize session handler: no database name configured"); |
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croak; |
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} |
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my $self = bless($class->SUPER::new(%{$config || {}}), $class); |
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$self->{'_serializer'} = sub { YAML::freeze(reverse(@_)) }; |
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$self->{'_deserializer'} = sub { YAML::thaw(@_) }; |
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35
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$self->{'_database'} = $config->{'database'}; |
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$self->{'_username'} = $config->{'username'}; |
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$self->{'_password'} = $config->{'password'}; |
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$self->{'_hostname'} = $config->{'hostname'}; |
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$self->{'_port'} = $config->{'port'}; |
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$self->{'_autocommit'} = $config->{'autocommit'}; |
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$self->{'_charset'} = $config->{'charset'}; |
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$self->{'_check_threshold'} = $config->{'connection_check_threshold'} || 30; |
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$self->{'_table'} = $config->{'table'} || "sessions"; |
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$self->{'_timeout'} = $config->{'expiration_timeout'} || 1800; |
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0
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$self->{'_autopurge'} = $config->{'autopurge'} || 1; |
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48
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49
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$self->{'_handles'} = {}; |
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51
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0
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return $self; |
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} |
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54
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sub handle { |
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my $self = shift; |
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57
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58
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59
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60
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my $pid_tid = $$; |
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0
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0
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$pid_tid .= '_' . threads->tid if $INC{'threads.pm'}; |
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63
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my $handle = $self->{'_handles'}->{$pid_tid} || undef; |
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66
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0
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0
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if ($handle->{'dbh'}) { |
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0
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0
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0
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if ($handle->{'dbh'}{'Active'} && $self->{'_check_threshold'} && |
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0
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68
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(time - $handle->{'last_connection_check'} < $self->{'_check_threshold'})) { |
69
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70
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71
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0
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return $handle->{dbh}; |
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} else { |
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0
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0
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if (_check_connection($handle->{'dbh'})) { |
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0
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$handle->{last_connection_check} = time; |
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0
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return $handle->{'dbh'}; |
76
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} else { |
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78
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0
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logger->debug("database connection to '${\$self->{'_connection'}}' went away -- reconnecting"); |
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79
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80
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81
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0
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0
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if ($handle->{'dbh'}) { |
82
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0
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try { $handle->{'dbh'}->disconnect() } catch {}; |
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0
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83
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} |
84
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85
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86
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0
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$handle->{'dbh'} = $self->_get_connection(); |
87
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0
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return $handle->{'dbh'}; |
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} |
89
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} |
90
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} else { |
91
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0
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$handle->{'dbh'} = $self->_get_connection(); |
92
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0
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0
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if ($handle->{'dbh'}) { |
93
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0
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$handle->{'last_connection_check'} = time; |
94
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0
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$self->{'_handles'}->{$pid_tid} = $handle; |
95
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0
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return $handle->{'dbh'}; |
96
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} |
97
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} |
98
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99
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0
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return; |
100
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} |
101
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102
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sub _get_connection { |
103
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0
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0
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my $self = shift; |
104
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105
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0
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my $dbh = undef; |
106
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try { |
107
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0
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0
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0
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$dbh = DBI->connect(@{$self->{'_dsn'}}) || die "${\$DBI::errstr}\n"; |
108
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} catch { |
109
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0
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0
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logger->fatal("could not initialize database connection '${\$self->{'_connection'}}': " . $_); |
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0
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110
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0
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}; |
111
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112
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0
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return $dbh; |
113
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} |
114
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115
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116
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sub _check_connection { |
117
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0
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0
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my $dbh = shift; |
118
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0
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0
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return unless $dbh; |
119
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120
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0
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0
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0
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if ($dbh->{Active} && (my $result = $dbh->ping())) { |
121
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0
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0
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if (int($result)) { |
122
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123
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0
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return 1; |
124
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} else { |
125
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126
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127
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128
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return try { |
129
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0
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0
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return $dbh->do('SELECT 1'); |
130
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} catch { |
131
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0
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0
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return 0; |
132
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0
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}; |
133
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} |
134
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} else { |
135
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0
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return; |
136
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} |
137
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} |
138
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139
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1; |
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