Matthias Andreas Benkard | 7b2a3a1 | 2021-08-16 10:57:25 +0200 | [diff] [blame^] | 1 | <?php |
| 2 | |
| 3 | namespace Adldap\Models\Concerns; |
| 4 | |
| 5 | use Adldap\Utilities; |
| 6 | use Adldap\Models\User; |
| 7 | use Adldap\Models\Group; |
| 8 | use Adldap\Query\Collection; |
| 9 | |
| 10 | trait HasMemberOf |
| 11 | { |
| 12 | /** |
| 13 | * Returns an array of distinguished names of groups that the current model belongs to. |
| 14 | * |
| 15 | * @link https://msdn.microsoft.com/en-us/library/ms677099(v=vs.85).aspx |
| 16 | * |
| 17 | * @return array |
| 18 | */ |
| 19 | public function getMemberOf() |
| 20 | { |
| 21 | $dns = $this->getAttribute($this->schema->memberOf()); |
| 22 | |
| 23 | // Normalize returned distinguished names if the attribute is null. |
| 24 | return is_array($dns) ? $dns : []; |
| 25 | } |
| 26 | |
| 27 | /** |
| 28 | * Adds the current model to the specified group. |
| 29 | * |
| 30 | * @param string|Group $group |
| 31 | * |
| 32 | * @return bool |
| 33 | */ |
| 34 | public function addGroup($group) |
| 35 | { |
| 36 | if (is_string($group)) { |
| 37 | // If the group is a string, we'll assume the dev is passing |
| 38 | // in a DN string of the group. We'll try to locate it. |
| 39 | $group = $this->query->newInstance()->findByDn($group); |
| 40 | } |
| 41 | |
| 42 | if ($group instanceof Group) { |
| 43 | // If the group is Group model instance, we can |
| 44 | // add the current models DN to the group. |
| 45 | return $group->addMember($this->getDn()); |
| 46 | } |
| 47 | |
| 48 | return false; |
| 49 | } |
| 50 | |
| 51 | /** |
| 52 | * Removes the current model from the specified group. |
| 53 | * |
| 54 | * @param string|Group $group |
| 55 | * |
| 56 | * @return bool |
| 57 | */ |
| 58 | public function removeGroup($group) |
| 59 | { |
| 60 | if (is_string($group)) { |
| 61 | // If the group is a string, we'll assume the dev is passing |
| 62 | // in a DN string of the group. We'll try to locate it. |
| 63 | $group = $this->query->newInstance()->findByDn($group); |
| 64 | } |
| 65 | |
| 66 | if ($group instanceof Group) { |
| 67 | // If the group is Group model instance, we can |
| 68 | // remove the current models DN from the group. |
| 69 | return $group->removeMember($this->getDn()); |
| 70 | } |
| 71 | |
| 72 | return false; |
| 73 | } |
| 74 | |
| 75 | /** |
| 76 | * Removes the current model from all groups. |
| 77 | * |
| 78 | * @return array The group distinguished names that were successfully removed |
| 79 | */ |
| 80 | public function removeAllGroups() |
| 81 | { |
| 82 | $removed = []; |
| 83 | |
| 84 | foreach ($this->getMemberOf() as $group) { |
| 85 | if ($this->removeGroup($group)) { |
| 86 | $removed[] = $group; |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | return $removed; |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Returns the models groups that it is apart of. |
| 95 | * |
| 96 | * If a recursive option is given, groups of groups |
| 97 | * are retrieved and then merged with |
| 98 | * the resulting collection. |
| 99 | * |
| 100 | * @link https://msdn.microsoft.com/en-us/library/ms677099(v=vs.85).aspx |
| 101 | * |
| 102 | * @param array $fields |
| 103 | * @param bool $recursive |
| 104 | * @param array $visited |
| 105 | * |
| 106 | * @return Collection |
| 107 | */ |
| 108 | public function getGroups(array $fields = ['*'], $recursive = false, array $visited = []) |
| 109 | { |
| 110 | if (!in_array($this->schema->memberOf(), $fields)) { |
| 111 | // We want to make sure that we always select the memberof |
| 112 | // field in case developers want recursive members. |
| 113 | $fields = array_merge($fields, [$this->schema->memberOf()]); |
| 114 | } |
| 115 | |
| 116 | $groups = $this->getGroupsByNames($this->getMemberOf(), $fields); |
| 117 | |
| 118 | // We need to check if we're working with a User model. Only users |
| 119 | // contain a primary group. If we are, we'll merge the users |
| 120 | // primary group into the resulting collection. |
| 121 | if ($this instanceof User && $primary = $this->getPrimaryGroup()) { |
| 122 | $groups->push($primary); |
| 123 | } |
| 124 | |
| 125 | // If recursive results are requested, we'll ask each group |
| 126 | // for their groups, and merge the resulting collection. |
| 127 | if ($recursive) { |
| 128 | /** @var Group $group */ |
| 129 | foreach ($groups as $group) { |
| 130 | // We need to validate that we haven't already queried |
| 131 | // for this group's members so we don't allow |
| 132 | // infinite recursion in case of circular |
| 133 | // group dependencies in LDAP. |
| 134 | if (!in_array($group->getDn(), $visited)) { |
| 135 | $visited[] = $group->getDn(); |
| 136 | |
| 137 | $members = $group->getGroups($fields, $recursive, $visited); |
| 138 | |
| 139 | /** @var Group $member */ |
| 140 | foreach ($members as $member) { |
| 141 | $visited[] = $member->getDn(); |
| 142 | } |
| 143 | |
| 144 | $groups = $groups->merge($members); |
| 145 | } |
| 146 | } |
| 147 | } |
| 148 | |
| 149 | return $groups; |
| 150 | } |
| 151 | |
| 152 | /** |
| 153 | * Returns the models groups names in a single dimension array. |
| 154 | * |
| 155 | * If a recursive option is given, groups of groups |
| 156 | * are retrieved and then merged with |
| 157 | * the resulting collection. |
| 158 | * |
| 159 | * @param bool $recursive |
| 160 | * |
| 161 | * @return array |
| 162 | */ |
| 163 | public function getGroupNames($recursive = false) |
| 164 | { |
| 165 | $fields = [$this->schema->commonName(), $this->schema->memberOf()]; |
| 166 | |
| 167 | $names = $this->getGroups($fields, $recursive)->map(function (Group $group) { |
| 168 | return $group->getCommonName(); |
| 169 | })->toArray(); |
| 170 | |
| 171 | return array_unique($names); |
| 172 | } |
| 173 | |
| 174 | /** |
| 175 | * Determine if the current model is a member of the specified group(s). |
| 176 | * |
| 177 | * @param mixed $group |
| 178 | * @param bool $recursive |
| 179 | * |
| 180 | * @return bool |
| 181 | */ |
| 182 | public function inGroup($group, $recursive = false) |
| 183 | { |
| 184 | $memberOf = $this->getGroups(['cn'], $recursive); |
| 185 | |
| 186 | if ($group instanceof Collection) { |
| 187 | // If we've been given a collection then we'll convert |
| 188 | // it to an array to normalize the value. |
| 189 | $group = $group->toArray(); |
| 190 | } |
| 191 | |
| 192 | $groups = is_array($group) ? $group : [$group]; |
| 193 | |
| 194 | foreach ($groups as $group) { |
| 195 | // We need to iterate through each given group that the |
| 196 | // model must be apart of, then go through the models |
| 197 | // actual groups and perform validation. |
| 198 | $exists = $memberOf->filter(function (Group $parent) use ($group) { |
| 199 | return $this->groupIsParent($group, $parent); |
| 200 | })->count() !== 0; |
| 201 | |
| 202 | if (!$exists) { |
| 203 | // If the current group isn't at all contained |
| 204 | // in the memberOf collection, we'll |
| 205 | // return false here. |
| 206 | return false; |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | return true; |
| 211 | } |
| 212 | |
| 213 | /** |
| 214 | * Retrieves groups by their distinguished name. |
| 215 | * |
| 216 | * @param array $dns |
| 217 | * @param array $fields |
| 218 | * |
| 219 | * @return Collection |
| 220 | */ |
| 221 | protected function getGroupsByNames(array $dns = [], $fields = []) |
| 222 | { |
| 223 | $query = $this->query->newInstance(); |
| 224 | |
| 225 | return $query->newCollection($dns)->map(function ($dn) use ($query, $fields) { |
| 226 | return $query->select($fields)->clearFilters()->findByDn($dn); |
| 227 | })->filter(function ($group) { |
| 228 | return $group instanceof Group; |
| 229 | }); |
| 230 | } |
| 231 | |
| 232 | /** |
| 233 | * Validates if the specified group is the given parent instance. |
| 234 | * |
| 235 | * @param Group|string $group |
| 236 | * @param Group $parent |
| 237 | * |
| 238 | * @return bool |
| 239 | */ |
| 240 | protected function groupIsParent($group, Group $parent) |
| 241 | { |
| 242 | if ($group instanceof Group) { |
| 243 | // We've been given a group instance, we'll compare their DNs. |
| 244 | return $parent->getDn() === $group->getDn(); |
| 245 | } |
| 246 | |
| 247 | if (Utilities::explodeDn($group)) { |
| 248 | // We've been given a DN, we'll compare it to the parents. |
| 249 | return $parent->getDn() === $group; |
| 250 | } |
| 251 | |
| 252 | if (!empty($group)) { |
| 253 | // We've been given just a string, we'll |
| 254 | // compare it to the parents name. |
| 255 | return $parent->getCommonName() === $group; |
| 256 | } |
| 257 | |
| 258 | return false; |
| 259 | } |
| 260 | } |