1 | package LATMOS::Accounts::Bases::Objects; |
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2 | |
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3 | use 5.010000; |
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4 | use strict; |
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5 | use warnings; |
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6 | use LATMOS::Accounts::Log; |
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7 | |
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8 | our $VERSION = (q$Rev$ =~ /^Rev: (\d+) /)[0]; |
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9 | |
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10 | =head1 NAME |
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11 | |
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12 | LATMOS::Accounts::Bases::Objects - Base class for account objects |
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13 | |
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14 | =head1 SYNOPSIS |
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15 | |
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16 | use LATMOS::Accounts::Bases::Objects; |
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17 | LATMOS::Accounts::Bases::Objects->new($base, $type, $id); |
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18 | |
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19 | =head1 DESCRIPTION |
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20 | |
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21 | =head1 FUNCTIONS |
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22 | |
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23 | =cut |
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24 | |
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25 | =head2 list($base) |
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26 | |
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27 | List object supported by this module existing in base $base |
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28 | |
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29 | Must be provide by object class |
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30 | |
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31 | sub list { |
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32 | my ($class, $base) = @_; |
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33 | } |
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34 | |
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35 | =cut |
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36 | |
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37 | =head2 new($base, $id) |
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38 | |
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39 | Create a new object having $id as uid. |
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40 | |
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41 | =cut |
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42 | |
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43 | sub new { |
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44 | my ($class, $base, $id, @args) = @_; |
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45 | # So can be call as $class->SUPER::new() |
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46 | bless { |
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47 | _base => $base, |
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48 | _type => lc(($class =~ m/::([^:]*)$/)[0]), |
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49 | _id => $id, |
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50 | }, $class; |
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51 | } |
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52 | |
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53 | # _new($base, $type, $id, ...) |
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54 | |
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55 | # Return a new object of type $type having unique identifier |
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56 | # $id, all remaining arguments are passed to the subclass. |
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57 | |
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58 | sub _new { |
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59 | my ($class, $base, $otype, $id, @args) = @_; |
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60 | |
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61 | # finding perl class: |
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62 | my $pclass = $base->_load_obj_class($otype) or return; |
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63 | my $newobj = "$pclass"->new($base, $id, @args) or return; |
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64 | $newobj->{_base} = $base; |
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65 | $newobj->{_type} = lc($otype); |
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66 | $newobj->{_id} ||= $id; |
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67 | return $newobj; |
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68 | } |
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69 | |
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70 | =head2 _create($class, $base, $id, %data) |
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71 | |
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72 | Must create a new object in database. |
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73 | |
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74 | Is called if underling base does not override create_object |
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75 | |
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76 | sub _create( |
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77 | my ($class, $base, $id, %data) |
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78 | } |
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79 | |
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80 | =cut |
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81 | |
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82 | =head2 type |
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83 | |
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84 | Return the type of the object |
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85 | |
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86 | =cut |
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87 | |
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88 | sub type { |
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89 | my ($self) = @_; |
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90 | if (ref $self) { |
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91 | return $self->{_type} |
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92 | } else { |
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93 | return lc(($self =~ /::([^:]+)$/)[0]); |
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94 | } |
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95 | } |
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96 | |
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97 | =head2 base |
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98 | |
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99 | Return the base handle for this object. |
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100 | |
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101 | =cut |
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102 | |
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103 | sub base { |
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104 | return $_[0]->{_base} |
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105 | } |
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106 | |
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107 | =head2 id |
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108 | |
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109 | Must return the unique identifier for this object |
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110 | |
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111 | =cut |
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112 | |
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113 | sub id { |
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114 | my ($self) = @_; |
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115 | $self->{_id} |
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116 | } |
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117 | |
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118 | =head2 list_canonical_fields($for) |
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119 | |
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120 | Object shortcut to get the list of field supported by the object. |
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121 | |
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122 | =cut |
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123 | |
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124 | sub list_canonical_fields { |
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125 | my ($self, $for) = @_; |
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126 | $self->base->list_canonical_fields($self->type, $for); |
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127 | } |
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128 | |
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129 | =head2 get_field_name($field, $for) |
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130 | |
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131 | Object shortcut to get the field name supported by the object. |
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132 | |
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133 | =cut |
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134 | |
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135 | sub get_field_name { |
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136 | my ($self, $field, $for) = @_; |
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137 | $self->base->get_field_name($self->type, $field, $for); |
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138 | } |
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139 | |
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140 | =head2 _canonical_fields |
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141 | |
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142 | Must return the list of field supported by the object. |
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143 | |
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144 | Notice this query will always come from the upstream data base, |
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145 | this function is just a facility to store data in the module, but the |
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146 | underling database can reply themself. |
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147 | |
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148 | Is call if underling base doesn't override list_canonical_fields() |
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149 | |
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150 | See list_canonical_fields(). |
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151 | |
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152 | sub _canonical_fields { |
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153 | my ($self) = @_; |
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154 | } |
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155 | |
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156 | =cut |
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157 | |
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158 | sub _delayed_fields { |
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159 | my ($self)= @_; |
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160 | return (); |
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161 | } |
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162 | |
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163 | =head2 _get_fields_name($field, $for) |
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164 | |
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165 | Return the fields name for canonical field $field. |
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166 | $for, if set, is a string containing 'r' for read, 'w' for write, |
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167 | depending usage context. |
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168 | |
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169 | sub _get_field_name { |
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170 | my ($self, $field, $for) = @_; |
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171 | } |
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172 | |
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173 | =cut |
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174 | |
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175 | =head2 get_field($field) |
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176 | |
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177 | Return the value for $field, must be provide by data base. |
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178 | |
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179 | sub get_field { |
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180 | my ($self, $field) |
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181 | } |
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182 | |
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183 | =cut |
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184 | |
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185 | =head2 get_c_field($cfield) |
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186 | |
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187 | Return the value for canonical field $cfield. |
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188 | |
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189 | Call driver specific get_field_name() and get_field() |
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190 | |
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191 | =cut |
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192 | |
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193 | sub get_c_field { |
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194 | my ($self, $cfield) = @_; |
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195 | my $return; |
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196 | eval { |
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197 | $self->base->check_acl($self, $cfield, 'r') or die "Permission denied"; |
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198 | $return = $self->_get_c_field($cfield); |
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199 | }; |
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200 | $return |
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201 | } |
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202 | |
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203 | =head2 get_attributes($attr) |
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204 | |
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205 | Like get_c_field but always return an array |
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206 | |
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207 | =cut |
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208 | |
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209 | sub get_attributes { |
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210 | my ($self, $cfield) = @_; |
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211 | my $res = $self->get_c_field($cfield); |
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212 | return ref $res ? @{ $res } : ($res); |
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213 | } |
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214 | |
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215 | sub _get_attributes { |
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216 | my ($self, $cfield) = @_; |
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217 | my $res = $self->_get_c_field($cfield); |
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218 | return ref $res ? @{ $res } : ($res); |
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219 | } |
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220 | |
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221 | sub _get_c_field { |
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222 | my ($self, $cfield) = @_; |
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223 | my $return; |
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224 | eval { |
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225 | my $field = $self->base->get_field_name($self->type, $cfield, 'r') or |
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226 | die "Unknow attribute $cfield"; |
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227 | $return = $self->get_field($field); |
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228 | }; |
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229 | $return |
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230 | } |
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231 | |
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232 | sub queryformat { |
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233 | my ($self, $fmt) = @_; |
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234 | $fmt =~ s/\\n/\n/g; |
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235 | $fmt =~ s! |
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236 | (?:%{([^:}]*)(?::([^}]+))?}) |
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237 | ! |
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238 | my $val = $self->get_c_field($1); |
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239 | sprintf('%' . ($2 || 's'), ref $val ? join(',', @$val) : ($val||'')) |
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240 | !egx; |
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241 | $fmt; |
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242 | } |
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243 | |
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244 | =head2 set_fields(%data) |
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245 | |
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246 | Set values for this object. %data is a list or peer field => values. |
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247 | |
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248 | sub set_fields { |
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249 | my ($self, %data) = @_; |
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250 | } |
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251 | |
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252 | =cut |
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253 | |
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254 | =head2 set_c_fields(%data) |
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255 | |
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256 | Set values for this object. %data is a list or peer |
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257 | canonical field => values. Fields names are translated. |
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258 | |
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259 | =cut |
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260 | |
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261 | sub set_c_fields { |
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262 | my ($self, %cdata) = @_; |
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263 | my %data; |
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264 | eval { |
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265 | foreach my $cfield (keys %cdata) { |
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266 | $self->base->check_acl($self, $cfield, 'w') or |
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267 | die "permission denied"; |
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268 | } |
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269 | }; |
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270 | return if($@); |
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271 | $self->_set_c_fields(%cdata); |
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272 | } |
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273 | |
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274 | sub _set_c_fields { |
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275 | my ($self, %cdata) = @_; |
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276 | my %data; |
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277 | foreach my $cfield (keys %cdata) { |
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278 | my $field = $self->base->get_field_name($self->type, $cfield, 'w') or do { |
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279 | $self->base->log(LA_ERR, |
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280 | "Cannot set unsupported attribute %s to %s (%s)", |
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281 | $cfield, $self->id, $self->type |
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282 | ); |
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283 | return; |
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284 | }; |
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285 | $data{$field} = $cdata{$cfield}; |
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286 | } |
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287 | keys %data or return 0; # TODO: return an error ? |
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288 | $self->set_fields(%data); |
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289 | } |
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290 | |
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291 | =head2 set_password($password) |
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292 | |
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293 | Set the password into the database, $password is the clear version |
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294 | of the password. |
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295 | |
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296 | This function store it into userPassword canonical field if supported |
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297 | using crypt unix and md5 algorythm (crypt md5), the salt is 8 random |
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298 | caracters. |
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299 | |
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300 | The base driver should override it if another encryption is need. |
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301 | |
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302 | =cut |
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303 | |
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304 | sub set_password { |
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305 | my ($self, $clear_pass) = @_; |
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306 | if ($self->base->check_acl($self, 'userPassword', 'w')) { |
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307 | return $self->_set_password($clear_pass); |
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308 | } else { |
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309 | $self->log(LA_ERROR, "Permission denied for %s to change its password", |
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310 | $self->id); |
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311 | return; |
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312 | } |
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313 | } |
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314 | |
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315 | sub _set_password { |
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316 | my ($self, $clear_pass) = @_; |
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317 | if (my $field = $self->base->get_field_name($self->type, 'userPassword')) { |
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318 | my @salt_char = (('a' .. 'z'), ('A' .. 'Z'), (0 .. 9), '/', '.'); |
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319 | my $salt = join('', map { $salt_char[rand(scalar(@salt_char))] } (1 .. 8)); |
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320 | return $self->set_fields($field, crypt($clear_pass, '$1$' . $salt)); |
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321 | } else { |
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322 | $self->log(LA_WARN, |
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323 | "Cannot set password: userPassword attributes is unsupported"); |
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324 | } |
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325 | } |
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326 | |
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327 | sub search { |
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328 | my ($class, $base, @filter) = @_; |
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329 | my @results; |
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330 | my @parsed_filter; |
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331 | while (my $item = shift(@filter)) { |
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332 | # attr=foo => no extra white space ! |
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333 | # \W is false, it is possible to have two char |
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334 | my ($attr, $mode, $val) = $item =~ /^(\w+)(?:(\W)(.+))?$/ or next; |
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335 | if (!$mode) { |
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336 | $mode = '~'; |
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337 | $val = shift(@filter); |
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338 | } |
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339 | push( |
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340 | @parsed_filter, |
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341 | { |
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342 | attr => $attr, |
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343 | mode => $mode, |
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344 | val => $val, |
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345 | } |
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346 | ); |
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347 | } |
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348 | foreach my $id ($base->list_objects($class->type)) { |
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349 | my $obj = $base->get_object($class->type, $id); |
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350 | my $match = 1; |
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351 | foreach my $field (@parsed_filter) { |
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352 | my $value = $field->{val}; |
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353 | $base->get_field_name($class->type, $field->{attr}, 'r') or die |
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354 | "Unsupported attribute $field->{attr}\n"; |
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355 | my $fval = $obj->_get_c_field($field->{attr}) || ''; |
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356 | if ($value eq '*') { |
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357 | if ($fval eq '') { |
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358 | $match = 0; |
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359 | last; |
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360 | } |
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361 | } elsif ($value eq '!') { |
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362 | if ($fval ne '') { |
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363 | $match = 0; |
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364 | last; |
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365 | } |
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366 | } elsif ($field->{mode} eq '=') { |
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367 | if ($fval ne $value) { |
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368 | $match = 0; |
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369 | last; |
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370 | } |
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371 | } elsif($field->{mode} eq '~') { |
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372 | if ($fval !~ m/\Q$value\E/i) { |
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373 | $match = 0; |
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374 | last; |
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375 | } |
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376 | } |
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377 | } |
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378 | push(@results, $id) if($match); |
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379 | } |
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380 | @results; |
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381 | } |
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382 | |
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383 | |
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384 | sub attributes_summary { |
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385 | my ($class, $base, $attribute) = @_; |
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386 | my %values; |
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387 | foreach my $id ($base->list_objects($class->type)) { |
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388 | my $obj = $base->get_object($class->type, $id); |
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389 | my $value = $obj->_get_c_field($attribute); |
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390 | if ($value) { |
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391 | if (ref $value) { |
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392 | foreach (@$value) { |
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393 | $values{$_} = 1; |
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394 | } |
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395 | } else { |
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396 | $values{$value} = 1; |
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397 | } |
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398 | } |
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399 | } |
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400 | return sort(keys %values); |
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401 | } |
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402 | |
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403 | sub find_next_numeric_id { |
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404 | my ($class, $base, $field, $min, $max) = @_; |
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405 | $base->get_field_name($class->type, $field) or return; |
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406 | $min ||= |
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407 | $field eq 'uidNumber' ? 500 : |
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408 | $field eq 'gidNumber' ? 500 : |
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409 | 1; |
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410 | $max ||= 65635; |
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411 | $base->log(LA_DEBUG, "Trying to find %s in range %d - %d", |
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412 | $field, $min, $max); |
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413 | my %existsid; |
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414 | foreach ($base->list_objects($class->type)) { |
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415 | my $obj = $base->get_object($class->type, $_) or next; |
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416 | my $id = $obj->_get_c_field($field) or next; |
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417 | $existsid{$id} = 1; |
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418 | } |
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419 | for(my $i = $min; $i <= $max; $i++) { |
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420 | $existsid{$i} or return $i; |
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421 | } |
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422 | return; |
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423 | } |
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424 | |
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425 | sub text_dump { |
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426 | my ($self, $handle, $options, $base) = @_; |
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427 | |
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428 | my $otype = $self->type; |
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429 | $base ||= $self->base; |
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430 | if (ref $self) { |
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431 | printf $handle "# base %s: object %s/%s\n", |
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432 | $base->label, $self->type, $self->id; |
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433 | } |
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434 | printf $handle "# %s\n", scalar(localtime); |
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435 | |
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436 | foreach my $attr (sort { $a cmp $b } $base->list_canonical_fields($otype, |
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437 | $options->{only_rw} ? 'rw' : 'r')) { |
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438 | my $wok = $base->get_field_name($otype, $attr, 'w'); |
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439 | if (ref $self) { |
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440 | my $val = $self->get_c_field($attr); |
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441 | if ($val || $options->{empty_attr}) { |
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442 | my @vals = ref $val ? @{ $val } : $val; |
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443 | foreach (@vals) { |
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444 | $_ ||= ''; |
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445 | s/\r?\n/\\n/g; |
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446 | printf($handle "%s%s: %s\n", |
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447 | $wok ? '' : '# (ro) ', |
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448 | $attr, $_); |
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449 | } |
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450 | } |
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451 | } else { |
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452 | printf($handle "%s%s: %s\n", |
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453 | $wok ? '' : '# (ro) ', |
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454 | $attr, ''); |
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455 | } |
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456 | } |
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457 | return 1; |
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458 | } |
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459 | |
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460 | 1; |
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461 | |
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462 | __END__ |
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463 | |
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464 | =head1 CANICALS FIELDS |
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465 | |
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466 | =head2 User class |
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467 | |
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468 | =head2 Group class |
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469 | |
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470 | =head1 SEE ALSO |
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471 | |
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472 | Mention other useful documentation such as the documentation of |
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473 | related modules or operating system documentation (such as man pages |
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474 | in UNIX), or any relevant external documentation such as RFCs or |
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475 | standards. |
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476 | |
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477 | If you have a mailing list set up for your module, mention it here. |
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478 | |
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479 | If you have a web site set up for your module, mention it here. |
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480 | |
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481 | =head1 AUTHOR |
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482 | |
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483 | Thauvin Olivier, E<lt>olivier.thauvin.ipsl.fr@localdomainE<gt> |
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484 | |
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485 | =head1 COPYRIGHT AND LICENSE |
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486 | |
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487 | Copyright (C) 2009 by Thauvin Olivier |
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488 | |
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489 | This library is free software; you can redistribute it and/or modify |
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490 | it under the same terms as Perl itself, either Perl version 5.10.0 or, |
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491 | at your option, any later version of Perl 5 you may have available. |
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492 | |
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493 | =cut |
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