| 1 |
<?php |
| 2 |
/** |
| 3 |
* AccessHandler.php |
| 4 |
* |
| 5 |
* The AccessHandler class file. |
| 6 |
* |
| 7 |
* PHP versions 5 |
| 8 |
* |
| 9 |
* @author Alexander Schneider <alexanderschneider85@gmail.com> |
| 10 |
* @copyright 2008-2017 Alexander Schneider |
| 11 |
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU General Public License, version 2 |
| 12 |
* @version SVN: $id$ |
| 13 |
* @link http://wordpress.org/extend/plugins/user-access-manager/ |
| 14 |
*/ |
| 15 |
|
| 16 |
declare(strict_types=1); |
| 17 |
|
| 18 |
namespace UserAccessManager\Access; |
| 19 |
|
| 20 |
use Exception; |
| 21 |
use UserAccessManager\Config\MainConfig; |
| 22 |
use UserAccessManager\Database\Database; |
| 23 |
use UserAccessManager\Object\ObjectHandler; |
| 24 |
use UserAccessManager\User\UserHandler; |
| 25 |
use UserAccessManager\UserGroup\AbstractUserGroup; |
| 26 |
use UserAccessManager\UserGroup\UserGroupHandler; |
| 27 |
use UserAccessManager\UserGroup\UserGroupTypeException; |
| 28 |
use UserAccessManager\Wrapper\Wordpress; |
| 29 |
|
| 30 |
/** |
| 31 |
* Class AccessHandler |
| 32 |
* @package UserAccessManager\AccessHandler |
| 33 |
*/ |
| 34 |
class AccessHandler |
| 35 |
{ |
| 36 |
/** |
| 37 |
* @var Wordpress |
| 38 |
*/ |
| 39 |
private $wordpress; |
| 40 |
|
| 41 |
/** |
| 42 |
* @var MainConfig |
| 43 |
*/ |
| 44 |
private $mainConfig; |
| 45 |
|
| 46 |
/** |
| 47 |
* @var Database |
| 48 |
*/ |
| 49 |
private $database; |
| 50 |
|
| 51 |
/** |
| 52 |
* @var ObjectHandler |
| 53 |
*/ |
| 54 |
private $objectHandler; |
| 55 |
|
| 56 |
/** |
| 57 |
* @var UserHandler |
| 58 |
*/ |
| 59 |
private $userHandler; |
| 60 |
|
| 61 |
/** |
| 62 |
* @var UserGroupHandler |
| 63 |
*/ |
| 64 |
private $userGroupHandler; |
| 65 |
|
| 66 |
/** |
| 67 |
* @var null|array |
| 68 |
*/ |
| 69 |
private $excludedTerms = null; |
| 70 |
|
| 71 |
/** |
| 72 |
* @var null|array |
| 73 |
*/ |
| 74 |
private $excludedPosts = null; |
| 75 |
|
| 76 |
/** |
| 77 |
* @var array |
| 78 |
*/ |
| 79 |
private $objectAccess = []; |
| 80 |
|
| 81 |
/** |
| 82 |
* @var null|array |
| 83 |
*/ |
| 84 |
private $noneHiddenPostTypes = null; |
| 85 |
|
| 86 |
/** |
| 87 |
* AccessHandler constructor. |
| 88 |
* @param Wordpress $wordpress |
| 89 |
* @param MainConfig $mainConfig |
| 90 |
* @param Database $database |
| 91 |
* @param ObjectHandler $objectHandler |
| 92 |
* @param UserHandler $userHandler |
| 93 |
* @param UserGroupHandler $userGroupHandler |
| 94 |
*/ |
| 95 |
public function __construct( |
| 96 |
Wordpress $wordpress, |
| 97 |
MainConfig $mainConfig, |
| 98 |
Database $database, |
| 99 |
ObjectHandler $objectHandler, |
| 100 |
UserHandler $userHandler, |
| 101 |
UserGroupHandler $userGroupHandler |
| 102 |
) { |
| 103 |
$this->wordpress = $wordpress; |
| 104 |
$this->mainConfig = $mainConfig; |
| 105 |
$this->database = $database; |
| 106 |
$this->objectHandler = $objectHandler; |
| 107 |
$this->userHandler = $userHandler; |
| 108 |
$this->userGroupHandler = $userGroupHandler; |
| 109 |
} |
| 110 |
|
| 111 |
/** |
| 112 |
* Checks it the user has access because he is the author. |
| 113 |
* @param string $objectType |
| 114 |
* @param int|string $objectId |
| 115 |
* @return bool |
| 116 |
*/ |
| 117 |
private function hasAuthorAccess(string $objectType, $objectId): bool |
| 118 |
{ |
| 119 |
if ($this->mainConfig->authorsHasAccessToOwn() === true |
| 120 |
&& $this->objectHandler->isPostType($objectType) |
| 121 |
) { |
| 122 |
$post = $this->objectHandler->getPost($objectId); |
| 123 |
return $post !== false |
| 124 |
&& $this->wordpress->getCurrentUser()->ID === (int) $post->post_author; |
| 125 |
} |
| 126 |
|
| 127 |
return false; |
| 128 |
} |
| 129 |
|
| 130 |
/** |
| 131 |
* Checks if the is admin value is set if not grabs it from the wordpress function. |
| 132 |
* @param null|bool $isAdmin |
| 133 |
* @return bool |
| 134 |
*/ |
| 135 |
private function isAdmin(?bool $isAdmin): bool |
| 136 |
{ |
| 137 |
return ($isAdmin === null) ? $this->wordpress->isAdmin() : $isAdmin; |
| 138 |
} |
| 139 |
|
| 140 |
/** |
| 141 |
* Returns the user user groups filtered by the write access. |
| 142 |
* @param null|bool $isAdmin If set we force the admin mode. |
| 143 |
* @return AbstractUserGroup[] |
| 144 |
* @throws UserGroupTypeException |
| 145 |
*/ |
| 146 |
private function getUserUserGroupsForObjectAccess($isAdmin = null): array |
| 147 |
{ |
| 148 |
$userUserGroups = $this->userGroupHandler->getUserGroupsForUser(); |
| 149 |
|
| 150 |
if ($this->isAdmin($isAdmin) === true) { |
| 151 |
$userUserGroups = array_filter( |
| 152 |
$userUserGroups, |
| 153 |
function (AbstractUserGroup $userGroup) { |
| 154 |
return $userGroup->getWriteAccess() !== 'none'; |
| 155 |
} |
| 156 |
); |
| 157 |
} |
| 158 |
|
| 159 |
return $this->wordpress->applyFilters('uam_get_user_user_groups_for_object_access', $userUserGroups, $isAdmin); |
| 160 |
} |
| 161 |
|
| 162 |
/** |
| 163 |
* Checks if the current_user has access to the given post. |
| 164 |
* @param string|null $objectType The object type which should be checked. |
| 165 |
* @param int|string $objectId The id of the object. |
| 166 |
* @param null|bool $isAdmin If set we force the admin mode. |
| 167 |
* @return bool |
| 168 |
* @throws UserGroupTypeException |
| 169 |
* @throws Exception |
| 170 |
*/ |
| 171 |
public function checkObjectAccess(?string $objectType, $objectId, $isAdmin = null): bool |
| 172 |
{ |
| 173 |
$isAdmin = $this->isAdmin($isAdmin); |
| 174 |
|
| 175 |
if (isset($this->objectAccess[$isAdmin][$objectType][$objectId]) === false) { |
| 176 |
if ($this->objectHandler->isValidObjectType($objectType) === false |
| 177 |
|| $this->userHandler->checkUserAccess(UserHandler::MANAGE_USER_GROUPS_CAPABILITY) === true |
| 178 |
|| $this->hasAuthorAccess($objectType, $objectId) === true |
| 179 |
) { |
| 180 |
$access = true; |
| 181 |
} else { |
| 182 |
$membership = $this->userGroupHandler->getUserGroupsForObject($objectType, $objectId); |
| 183 |
$access = $membership === [] |
| 184 |
|| array_intersect_key($membership, $this->getUserUserGroupsForObjectAccess($isAdmin)) !== [] |
| 185 |
&& $this->wordpress->isUserMemberOfBlog(); |
| 186 |
} |
| 187 |
|
| 188 |
$this->objectAccess[$isAdmin][$objectType][$objectId] = $access; |
| 189 |
} |
| 190 |
|
| 191 |
return $this->objectAccess[$isAdmin][$objectType][$objectId]; |
| 192 |
} |
| 193 |
|
| 194 |
/** |
| 195 |
* Returns the excluded objects. |
| 196 |
* @param string $type |
| 197 |
* @param array $filterTypesMap |
| 198 |
* @return array |
| 199 |
* @throws UserGroupTypeException |
| 200 |
* @throws Exception |
| 201 |
*/ |
| 202 |
private function getExcludedObjects(string $type, array $filterTypesMap = []): array |
| 203 |
{ |
| 204 |
$excludedObjects = []; |
| 205 |
$userGroups = $this->userGroupHandler->getFullUserGroups(); |
| 206 |
|
| 207 |
foreach ($userGroups as $userGroup) { |
| 208 |
$excludedObjects += $userGroup->getAssignedObjectsByType($type); |
| 209 |
} |
| 210 |
|
| 211 |
$userUserGroups = $this->userGroupHandler->getUserGroupsForUser(); |
| 212 |
|
| 213 |
foreach ($userUserGroups as $userGroup) { |
| 214 |
$excludedObjects = array_diff_key($excludedObjects, $userGroup->getAssignedObjectsByType($type)); |
| 215 |
} |
| 216 |
|
| 217 |
if ($filterTypesMap !== []) { |
| 218 |
$excludedObjects = array_filter( |
| 219 |
$excludedObjects, |
| 220 |
function ($element) use ($filterTypesMap) { |
| 221 |
return isset($filterTypesMap[$element]) === false; |
| 222 |
} |
| 223 |
); |
| 224 |
} |
| 225 |
|
| 226 |
$objectIds = array_keys($excludedObjects); |
| 227 |
return array_combine($objectIds, $objectIds); |
| 228 |
} |
| 229 |
|
| 230 |
/** |
| 231 |
* Returns the excluded terms for a user. |
| 232 |
* @return array |
| 233 |
* @throws UserGroupTypeException |
| 234 |
*/ |
| 235 |
public function getExcludedTerms(): ?array |
| 236 |
{ |
| 237 |
if ($this->userHandler->checkUserAccess(UserHandler::MANAGE_USER_GROUPS_CAPABILITY)) { |
| 238 |
$this->excludedTerms = []; |
| 239 |
} |
| 240 |
|
| 241 |
if ($this->excludedTerms === null) { |
| 242 |
$this->excludedTerms = $this->getExcludedObjects(ObjectHandler::GENERAL_TERM_OBJECT_TYPE); |
| 243 |
} |
| 244 |
|
| 245 |
return $this->excludedTerms; |
| 246 |
} |
| 247 |
|
| 248 |
/** |
| 249 |
* Returns the none hidden post types map. |
| 250 |
* @return array |
| 251 |
*/ |
| 252 |
private function getNoneHiddenPostTypes(): ?array |
| 253 |
{ |
| 254 |
if ($this->noneHiddenPostTypes === null) { |
| 255 |
$this->noneHiddenPostTypes = []; |
| 256 |
|
| 257 |
if ($this->wordpress->isAdmin() === false) { |
| 258 |
$postTypes = $this->objectHandler->getPostTypes(); |
| 259 |
|
| 260 |
foreach ($postTypes as $postType) { |
| 261 |
if ($this->mainConfig->hidePostType($postType) === false) { |
| 262 |
$this->noneHiddenPostTypes[$postType] = $postType; |
| 263 |
} |
| 264 |
} |
| 265 |
} |
| 266 |
} |
| 267 |
|
| 268 |
return $this->noneHiddenPostTypes; |
| 269 |
} |
| 270 |
|
| 271 |
/** |
| 272 |
* Returns the excluded posts. |
| 273 |
* @return array |
| 274 |
* @throws UserGroupTypeException |
| 275 |
*/ |
| 276 |
public function getExcludedPosts(): ?array |
| 277 |
{ |
| 278 |
if ($this->userHandler->checkUserAccess(UserHandler::MANAGE_USER_GROUPS_CAPABILITY)) { |
| 279 |
$this->excludedPosts = []; |
| 280 |
} |
| 281 |
|
| 282 |
if ($this->excludedPosts === null) { |
| 283 |
$noneHiddenPostTypes = $this->getNoneHiddenPostTypes(); |
| 284 |
$excludedPosts = $this->getExcludedObjects(ObjectHandler::GENERAL_POST_OBJECT_TYPE, $noneHiddenPostTypes); |
| 285 |
|
| 286 |
if ($this->mainConfig->authorsHasAccessToOwn() === true) { |
| 287 |
$query = $this->database->prepare( |
| 288 |
"SELECT ID FROM {$this->database->getPostsTable()} |
| 289 |
WHERE post_author = %d", |
| 290 |
$this->wordpress->getCurrentUser()->ID |
| 291 |
); |
| 292 |
|
| 293 |
$ownPosts = array_filter( |
| 294 |
(array) $this->database->getResults($query), |
| 295 |
function ($ownPost) { |
| 296 |
return isset($ownPost->ID); |
| 297 |
} |
| 298 |
); |
| 299 |
$ownPostIds = []; |
| 300 |
|
| 301 |
foreach ($ownPosts as $ownPost) { |
| 302 |
$ownPostIds[$ownPost->ID] = $ownPost->ID; |
| 303 |
} |
| 304 |
|
| 305 |
$excludedPosts = array_diff_key($excludedPosts, $ownPostIds); |
| 306 |
} |
| 307 |
|
| 308 |
$this->excludedPosts = $excludedPosts; |
| 309 |
} |
| 310 |
|
| 311 |
return $this->excludedPosts; |
| 312 |
} |
| 313 |
} |
| 314 |
|
