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| 1 : | sh002i | 798 | ################################################################################ |
| 2 : | # WeBWorK mod_perl (c) 2000-2002 WeBWorK Project | ||
| 3 : | # $Id$ | ||
| 4 : | ################################################################################ | ||
| 5 : | |||
| 6 : | package WeBWorK::DB::Schema::Auth1Hash; | ||
| 7 : | |||
| 8 : | =head1 NAME | ||
| 9 : | |||
| 10 : | WeBWorK::DB::Schema::Auth1Hash - support access to the password, permission, | ||
| 11 : | sh002i | 808 | and key tables with a WWDBv1 hash-style backend. |
| 12 : | sh002i | 798 | |
| 13 : | =cut | ||
| 14 : | |||
| 15 : | use strict; | ||
| 16 : | use warnings; | ||
| 17 : | |||
| 18 : | use constant TABLES => qw(password permission key); | ||
| 19 : | use constant STYLE => "hash"; | ||
| 20 : | |||
| 21 : | ################################################################################ | ||
| 22 : | # static functions | ||
| 23 : | ################################################################################ | ||
| 24 : | |||
| 25 : | sub tables() { | ||
| 26 : | return TABLES; | ||
| 27 : | } | ||
| 28 : | |||
| 29 : | sub style() { | ||
| 30 : | return STYLE; | ||
| 31 : | } | ||
| 32 : | |||
| 33 : | ################################################################################ | ||
| 34 : | # constructor | ||
| 35 : | ################################################################################ | ||
| 36 : | |||
| 37 : | sub new($$$$) { | ||
| 38 : | sh002i | 808 | my ($proto, $driver, $table, $record, $params) = @_; |
| 39 : | sh002i | 798 | my $class = ref($proto) || $proto; |
| 40 : | die "$table: unsupported table" | ||
| 41 : | unless grep { $_ eq $table } $proto->tables(); | ||
| 42 : | die $driver->style(), ": style mismatch" | ||
| 43 : | unless $driver->style() eq $proto->style(); | ||
| 44 : | my $self = { | ||
| 45 : | driver => $driver, | ||
| 46 : | table => $table, | ||
| 47 : | record => $record, | ||
| 48 : | sh002i | 808 | params => $params, |
| 49 : | sh002i | 798 | }; |
| 50 : | bless $self, $class; | ||
| 51 : | return $self; | ||
| 52 : | } | ||
| 53 : | |||
| 54 : | ################################################################################ | ||
| 55 : | # table access functions | ||
| 56 : | # Auth1Hash provides access to three tables, so it checks the $self->{table} | ||
| 57 : | # field to know what data its dealing with. | ||
| 58 : | ################################################################################ | ||
| 59 : | |||
| 60 : | sh002i | 808 | sub list($@) { |
| 61 : | my ($self, @keyparts) = @_; | ||
| 62 : | my ($matchUserID) = @keyparts; | ||
| 63 : | sh002i | 798 | $self->{driver}->connect("ro"); |
| 64 : | my @keys = keys %{ $self->{driver}->hash() }; | ||
| 65 : | $self->{driver}->disconnect(); | ||
| 66 : | sh002i | 808 | if (defined $matchUserID) { |
| 67 : | @keys = grep { $_ eq $matchUserID } @keys; | ||
| 68 : | } | ||
| 69 : | return map { [$_] } @keys; | ||
| 70 : | sh002i | 798 | } |
| 71 : | |||
| 72 : | sub exists($$) { | ||
| 73 : | my ($self, $userID) = @_; | ||
| 74 : | $self->{driver}->connect("ro"); | ||
| 75 : | my $exists = exists $self->{driver}->hash()->{$userID}; | ||
| 76 : | $self->{driver}->disconnect(); | ||
| 77 : | return $exists; | ||
| 78 : | } | ||
| 79 : | |||
| 80 : | sub add($$) { | ||
| 81 : | my ($self, $Record) = @_; | ||
| 82 : | my $valueName = $self->{table}; | ||
| 83 : | $self->{driver}->connect("rw"); | ||
| 84 : | my $hash = $self->{driver}->hash(); | ||
| 85 : | die $Record->user_id, ": $valueName exists" | ||
| 86 : | if exists $hash->{$Record->user_id}; | ||
| 87 : | if ($self->{table} eq "key") { | ||
| 88 : | # key's value contains two fields | ||
| 89 : | $hash->{$Record->user_id} = $Record->key() . " " . $Record->timestamp(); | ||
| 90 : | } else { | ||
| 91 : | $hash->{$Record->user_id} = $Record->$valueName(); | ||
| 92 : | } | ||
| 93 : | $self->{driver}->disconnect(); | ||
| 94 : | } | ||
| 95 : | |||
| 96 : | sub get($$) { | ||
| 97 : | my ($self, $userID) = @_; | ||
| 98 : | $self->{driver}->connect("ro"); | ||
| 99 : | my $value = $self->{driver}->hash()->{$userID}; | ||
| 100 : | $self->{driver}->disconnect(); | ||
| 101 : | sh002i | 808 | return undef unless defined $value; |
| 102 : | sh002i | 798 | if ($self->{table} eq "key") { |
| 103 : | # key's value contains two fields | ||
| 104 : | my ($key, $timestamp) = $value =~ m/^(\S+)\s+(.*)$/; | ||
| 105 : | return $self->{record}->new( | ||
| 106 : | user_id => $userID, | ||
| 107 : | key => $key, | ||
| 108 : | timestamp => $timestamp, | ||
| 109 : | ); | ||
| 110 : | } else { | ||
| 111 : | return $self->{record}->new( | ||
| 112 : | user_id => $userID, | ||
| 113 : | $self->{table} => $value, | ||
| 114 : | ); | ||
| 115 : | } | ||
| 116 : | } | ||
| 117 : | |||
| 118 : | sub put($$) { | ||
| 119 : | my ($self, $Record) = @_; | ||
| 120 : | my $valueName = $self->{table}; | ||
| 121 : | $self->{driver}->connect("rw"); | ||
| 122 : | my $hash = $self->{driver}->hash(); | ||
| 123 : | die $Record->user_id, ": $valueName not found" | ||
| 124 : | unless exists $hash->{$Record->user_id}; | ||
| 125 : | if ($self->{table} eq "key") { | ||
| 126 : | # key's value contains two fields | ||
| 127 : | $hash->{$Record->user_id} = $Record->key() . " " . $Record->timestamp(); | ||
| 128 : | } else { | ||
| 129 : | $hash->{$Record->user_id} = $Record->$valueName(); | ||
| 130 : | } | ||
| 131 : | $self->{driver}->disconnect(); | ||
| 132 : | } | ||
| 133 : | |||
| 134 : | sub delete($$) { | ||
| 135 : | my ($self, $userID) = @_; | ||
| 136 : | my $valueName = $self->{table}; | ||
| 137 : | $self->{driver}->connect("rw"); | ||
| 138 : | my $hash = $self->{driver}->hash(); | ||
| 139 : | die "$userID: $valueName not found" | ||
| 140 : | unless exists $hash->{$userID}; | ||
| 141 : | delete $hash->{$userID}; | ||
| 142 : | $self->{driver}->disconnect(); | ||
| 143 : | } | ||
| 144 : | |||
| 145 : | 1; |
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