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1 ################################################################################ 2 # WeBWorK mod_perl (c) 1995-2002 WeBWorK Team, Univeristy of Rochester 3 # $Id$ 4 ################################################################################ 5 6 package WeBWorK::DB::Auth; 7 8 # there should be a `use' line for each database type 9 use WeBWorK::DB::GDBM; 10 11 # new($invocant, $courseEnv) 12 # $invocant implicitly set by caller 13 # $courseEnv an instance of CourseEnvironment 14 sub new($$) { 15 my $invocant = shift; 16 my $class = ref($invocant) || $invocant; 17 my $courseEnv = shift; 18 my $dbModule = fullyQualifiedPackageName($courseEnv->{dbInfo}->{auth_type}); 19 my $self = { 20 password_file => $courseEnv->{dbInfo}->{auth_passwd_file}, 21 permissions_file => $courseEnv->{dbInfo}->{auth_perm_file}, 22 keys_file => $courseEnv->{dbInfo}->{auth_keys_file}, 23 key_timeout => $courseEnv->{sessionKeyTimeout}, 24 }; 25 $self->{password_db} = $dbModule->new($self->{password_file}); 26 $self->{permissions_db} = $dbModule->new($self->{permissions_file}); 27 $self->{keys_db} = $dbModule->new($self->{keys_file}); 28 bless $self, $class; 29 return $self; 30 } 31 32 sub fullyQualifiedPackageName($) { 33 my $n = shift; 34 my $package = __PACKAGE__; 35 $package =~ s/([^:]*)$/$n/; 36 return $package; 37 } 38 39 =pod 40 sub connect($$$) { 41 my $self = shift; 42 my $db = shift; 43 my $mode = shift; 44 return if defined $self->{$db."_db"}; 45 $self->{$db."_db"} = $self->{dbModule}->new($db."_file", $mode); 46 $self->{$db."_db"}->connect(); 47 } 48 49 sub disconnect($$) { 50 my $self = shift; 51 my $db = shift; 52 return unless defined $self->{$db."_db"}; 53 $self->{$db."_db"}->disconnect; 54 } 55 =cut 56 57 # ----- 58 59 =pod 60 sub getUsers($) { 61 my $self = shift; 62 my @password_users, @permissions_users, @keys_users; 63 if ($self->{password_db}->connect("ro")) { 64 @password_users = keys %{$self->{password_db}->hashRef}; 65 $self->{password_db}->disconnect; 66 } 67 if ($self->{permissions_db}->connect("ro")) { 68 @permissions_users = keys %{$self->{permissions_db}->hashRef}; 69 $self->{permissions_db}->disconnect; 70 } 71 if ($self->{keys_db}->connect("ro")) { 72 @keys_users = keys %{$self->{keys_db}->hashRef}; 73 $self->{keys_db}->disconnect; 74 } 75 my %all_users; 76 foreach (@password_users, @permissions_users, @keys_users) { 77 $all_users{$_}++; 78 } 79 return keys %all_users; 80 } 81 =cut 82 83 # ----- 84 85 sub getPassword($$) { 86 my $self = shift; 87 my $user = shift; 88 return unless $self->{password_db}->connect("ro"); 89 my $result = $self->{password_db}->hashRef->{$user}; 90 $self->{password_db}->disconnect; 91 return $result; 92 } 93 94 sub setPassword($$$) { 95 my $self = shift; 96 my $user = shift; 97 my $password = crypt shift, join "", ('.','/','0'..'9','A'..'Z','a'..'z')[rand 64, rand 64]; 98 $self->{password_db}->connect("rw"); 99 $self->{password_db}->hashRef->{$user} = $password; 100 $self->{password_db}->disconnect; 101 } 102 103 sub verifyPassword($$$) { 104 my $self = shift; 105 my $user = shift; 106 my $password = shift; 107 my $real_password = $self->getPassword($user); 108 return unless defined $real_password; 109 $password = crypt $password, $real_password; 110 return $password eq $real_password; 111 } 112 113 sub deletePassword($$) { 114 my $self = shift; 115 my $user = shift; 116 $self->{password_db}->connect("rw"); 117 delete $self->{password_db}->hashRef->{$user}; 118 $self->{password_db}->disconnect; 119 } 120 121 # ----- 122 123 sub getKey($$) { 124 my $self = shift; 125 my $user = shift; 126 return unless $self->{keys_db}->connect("ro"); 127 my $result = $self->{keys_db}->hashRef->{$user}; 128 $self->{keys_db}->disconnect; 129 my ($key, $timestamp) = defined $result ? split /\s+/, $result : (undef, undef); 130 return defined $result ? split /\s+/, $result : undef; 131 } 132 133 sub setKey($$$$) { 134 my $self = shift; 135 my $user = shift; 136 my $key = shift; 137 my $timestamp = shift; 138 my $key_string = "$key $timestamp"; 139 $self->{keys_db}->connect("rw"); 140 $self->{keys_db}->hashRef->{$user} = $key_string; 141 $self->{keys_db}->disconnect; 142 } 143 144 sub verifyKey($$$$$) { 145 my $self = shift; 146 my $user = shift; 147 my $key = shift; 148 my $timestamp = shift; 149 150 my ($real_key, $real_timestamp) = $self->getKey($user); 151 if ($key eq $real_key and $timestamp <= $real_timestamp+$self->{key_timeout}) { 152 $self->setKey($user, $key, $timestamp); 153 return 1; 154 } else { 155 return 0; 156 } 157 } 158 159 sub deleteKey($$) { 160 my $self = shift; 161 my $user = shift; 162 $self->{keys_db}->connect("rw"); 163 delete $self->{keys_db}->hashRef->{$user}; 164 $self->{keys_db}->disconnect; 165 } 166 167 # ----- 168 169 sub getPermissions($$) { 170 my $self = shift; 171 my $user = shift; 172 return unless $self->{permissions_db}->connect("ro"); 173 my $result = $self->{permissions_db}->hashRef->{$user}; 174 $self->{permissions_db}->disconnect; 175 return $result; 176 } 177 178 sub setPermissions($$$) { 179 my $self = shift; 180 my $user = shift; 181 my $permissions = shift; 182 $self->{permissions_db}->connect("rw"); 183 $self->{permissions_db}->hashRef->{$user} = $permissions; 184 $self->{permissions_db}->disconnect; 185 } 186 187 sub deletePermissions($$) { 188 my $self = shift; 189 my $user = shift; 190 $self->{permissions_db}->connect("rw"); 191 delete $self->{permissions_db}->hashRef->{$user}; 192 $self->{permissions_db}->disconnect; 193 } 194 195 # ----- ghetto for stupid functions ----- 196 197 sub change_user_in_password_file($$$) { 198 my $self = shift; 199 my $user = shift; 200 my $new_user = shift; 201 $self->{password_db}->connect("rw"); 202 my $pwhash = $self->{password_db}->hashRef; # make things easier 203 if (exists $pwhash->{$user}) { 204 $pwhash->{$new_user} = $pwhash->{$user}; 205 delete $pwhash->{$user}; 206 } 207 $self->{password_db}->disconnect; 208 } 209 210 sub change_user_in_permissions_file($$$) { 211 my $self = shift; 212 my $user = shift; 213 my $new_user = shift; 214 $self->{permissions_db}->connect("rw"); 215 my $permhash = $self->{permissions_db}->hashRef; # make things easier 216 if (exists $permhash->{$user}) { 217 $permhash->{$new_user} = $permhash->{$user}; 218 delete $permhash->{$user}; 219 } 220 $self->{permissions_db}->disconnect; 221 } 222 223 1;
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