| 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 |
namespace UserAccessManager\Access; |
| 16 |
|
| 17 |
use UserAccessManager\Config\MainConfig; |
| 18 |
use UserAccessManager\Database\Database; |
| 19 |
use UserAccessManager\Object\ObjectHandler; |
| 20 |
use UserAccessManager\UserGroup\AbstractUserGroup; |
| 21 |
use UserAccessManager\User\UserHandler; |
| 22 |
use UserAccessManager\UserGroup\UserGroupHandler; |
| 23 |
use UserAccessManager\Wrapper\Wordpress; |
| 24 |
|
| 25 |
/** |
| 26 |
* Class AccessHandler |
| 27 |
* |
| 28 |
* @package UserAccessManager\AccessHandler |
| 29 |
*/ |
| 30 |
class AccessHandler |
| 31 |
{ |
| 32 |
/** |
| 33 |
* @var Wordpress |
| 34 |
*/ |
| 35 |
private $wordpress; |
| 36 |
|
| 37 |
/** |
| 38 |
* @var MainConfig |
| 39 |
*/ |
| 40 |
private $mainConfig; |
| 41 |
|
| 42 |
/** |
| 43 |
* @var Database |
| 44 |
*/ |
| 45 |
private $database; |
| 46 |
|
| 47 |
/** |
| 48 |
* @var ObjectHandler |
| 49 |
*/ |
| 50 |
private $objectHandler; |
| 51 |
|
| 52 |
/** |
| 53 |
* @var UserHandler |
| 54 |
*/ |
| 55 |
private $userHandler; |
| 56 |
|
| 57 |
/** |
| 58 |
* @var UserGroupHandler |
| 59 |
*/ |
| 60 |
private $userGroupHandler; |
| 61 |
|
| 62 |
/** |
| 63 |
* @var null|array |
| 64 |
*/ |
| 65 |
private $excludedTerms = null; |
| 66 |
|
| 67 |
/** |
| 68 |
* @var null|array |
| 69 |
*/ |
| 70 |
private $excludedPosts = null; |
| 71 |
|
| 72 |
/** |
| 73 |
* @var array |
| 74 |
*/ |
| 75 |
private $objectAccess = []; |
| 76 |
|
| 77 |
/** |
| 78 |
* @var null|array |
| 79 |
*/ |
| 80 |
private $noneHiddenPostTypes = null; |
| 81 |
|
| 82 |
/** |
| 83 |
* AccessHandler constructor. |
| 84 |
* |
| 85 |
* @param Wordpress $wordpress |
| 86 |
* @param MainConfig $mainConfig |
| 87 |
* @param Database $database |
| 88 |
* @param ObjectHandler $objectHandler |
| 89 |
* @param UserHandler $userHandler |
| 90 |
* @param UserGroupHandler $userGroupHandler |
| 91 |
*/ |
| 92 |
public function __construct( |
| 93 |
Wordpress $wordpress, |
| 94 |
MainConfig $mainConfig, |
| 95 |
Database $database, |
| 96 |
ObjectHandler $objectHandler, |
| 97 |
UserHandler $userHandler, |
| 98 |
UserGroupHandler $userGroupHandler |
| 99 |
) { |
| 100 |
$this->wordpress = $wordpress; |
| 101 |
$this->mainConfig = $mainConfig; |
| 102 |
$this->database = $database; |
| 103 |
$this->objectHandler = $objectHandler; |
| 104 |
$this->userHandler = $userHandler; |
| 105 |
$this->userGroupHandler = $userGroupHandler; |
| 106 |
} |
| 107 |
|
| 108 |
/** |
| 109 |
* Checks it the user has access because he is the author. |
| 110 |
* |
| 111 |
* @param string $objectType |
| 112 |
* @param string $objectId |
| 113 |
* |
| 114 |
* @return bool |
| 115 |
*/ |
| 116 |
private function hasAuthorAccess($objectType, $objectId) |
| 117 |
{ |
| 118 |
if ($this->mainConfig->authorsHasAccessToOwn() === true |
| 119 |
&& $this->objectHandler->isPostType($objectType) |
| 120 |
) { |
| 121 |
$currentUser = $this->wordpress->getCurrentUser(); |
| 122 |
$post = $this->objectHandler->getPost($objectId); |
| 123 |
return ($post !== false && $currentUser->ID === (int)$post->post_author); |
| 124 |
} |
| 125 |
|
| 126 |
return false; |
| 127 |
} |
| 128 |
|
| 129 |
/** |
| 130 |
* Returns the user user groups filtered by the write access. |
| 131 |
* |
| 132 |
* @return AbstractUserGroup[] |
| 133 |
*/ |
| 134 |
private function getUserUserGroupsForObjectAccess() |
| 135 |
{ |
| 136 |
$userUserGroups = $this->userGroupHandler->getUserGroupsForUser(); |
| 137 |
|
| 138 |
if ($this->wordpress->isAdmin() === true) { |
| 139 |
$userUserGroups = array_filter( |
| 140 |
$userUserGroups, |
| 141 |
function (AbstractUserGroup $userGroup) { |
| 142 |
return $userGroup->getWriteAccess() !== 'none'; |
| 143 |
} |
| 144 |
); |
| 145 |
} |
| 146 |
|
| 147 |
return $userUserGroups; |
| 148 |
} |
| 149 |
|
| 150 |
/** |
| 151 |
* Checks if the current_user has access to the given post. |
| 152 |
* |
| 153 |
* @param string $objectType The object type which should be checked. |
| 154 |
* @param integer $objectId The id of the object. |
| 155 |
* |
| 156 |
* @return bool |
| 157 |
*/ |
| 158 |
public function checkObjectAccess($objectType, $objectId) |
| 159 |
{ |
| 160 |
$admin = $this->wordpress->isAdmin() === true ? 'admin' : 'noAdmin'; |
| 161 |
|
| 162 |
if (isset($this->objectAccess[$admin][$objectType][$objectId]) === false) { |
| 163 |
if ($this->objectHandler->isValidObjectType($objectType) === false |
| 164 |
|| $this->userHandler->checkUserAccess(UserHandler::MANAGE_USER_GROUPS_CAPABILITY) === true |
| 165 |
|| $this->hasAuthorAccess($objectType, $objectId) === true |
| 166 |
) { |
| 167 |
$access = true; |
| 168 |
} else { |
| 169 |
$membership = $this->userGroupHandler->getUserGroupsForObject($objectType, $objectId); |
| 170 |
$access = $membership === [] |
| 171 |
|| array_intersect_key($membership, $this->getUserUserGroupsForObjectAccess()) !== []; |
| 172 |
} |
| 173 |
|
| 174 |
$this->objectAccess[$admin][$objectType][$objectId] = $access; |
| 175 |
} |
| 176 |
|
| 177 |
return $this->objectAccess[$admin][$objectType][$objectId]; |
| 178 |
} |
| 179 |
|
| 180 |
/** |
| 181 |
* Returns the excluded objects. |
| 182 |
* |
| 183 |
* @param string $type |
| 184 |
* @param array $filterTypesMap |
| 185 |
* |
| 186 |
* @return array |
| 187 |
*/ |
| 188 |
private function getExcludedObjects($type, array $filterTypesMap = []) |
| 189 |
{ |
| 190 |
$excludedObjects = []; |
| 191 |
$userGroups = $this->userGroupHandler->getUserGroups(); |
| 192 |
|
| 193 |
foreach ($userGroups as $userGroup) { |
| 194 |
$excludedObjects += $userGroup->getAssignedObjectsByType($type); |
| 195 |
} |
| 196 |
|
| 197 |
$userUserGroups = $this->userGroupHandler->getUserGroupsForUser(); |
| 198 |
|
| 199 |
foreach ($userUserGroups as $userGroup) { |
| 200 |
$excludedObjects = array_diff_key($excludedObjects, $userGroup->getAssignedObjectsByType($type)); |
| 201 |
} |
| 202 |
|
| 203 |
if ($filterTypesMap !== []) { |
| 204 |
$excludedObjects = array_filter( |
| 205 |
$excludedObjects, |
| 206 |
function ($element) use ($filterTypesMap) { |
| 207 |
return isset($filterTypesMap[$element]) === false; |
| 208 |
} |
| 209 |
); |
| 210 |
} |
| 211 |
|
| 212 |
$objectIds = array_keys($excludedObjects); |
| 213 |
return array_combine($objectIds, $objectIds); |
| 214 |
} |
| 215 |
|
| 216 |
/** |
| 217 |
* Returns the excluded terms for a user. |
| 218 |
* |
| 219 |
* @return array |
| 220 |
*/ |
| 221 |
public function getExcludedTerms() |
| 222 |
{ |
| 223 |
if ($this->userHandler->checkUserAccess(UserHandler::MANAGE_USER_GROUPS_CAPABILITY)) { |
| 224 |
$this->excludedTerms = []; |
| 225 |
} |
| 226 |
|
| 227 |
if ($this->excludedTerms === null) { |
| 228 |
$this->excludedTerms = $this->getExcludedObjects(ObjectHandler::GENERAL_TERM_OBJECT_TYPE); |
| 229 |
} |
| 230 |
|
| 231 |
return $this->excludedTerms; |
| 232 |
} |
| 233 |
|
| 234 |
/** |
| 235 |
* Returns the none hidden post types map. |
| 236 |
* |
| 237 |
* @return array |
| 238 |
*/ |
| 239 |
private function getNoneHiddenPostTypes() |
| 240 |
{ |
| 241 |
if ($this->noneHiddenPostTypes === null) { |
| 242 |
$this->noneHiddenPostTypes = []; |
| 243 |
|
| 244 |
if ($this->wordpress->isAdmin() === false) { |
| 245 |
$postTypes = $this->objectHandler->getPostTypes(); |
| 246 |
|
| 247 |
foreach ($postTypes as $postType) { |
| 248 |
if ($this->mainConfig->hidePostType($postType) === false) { |
| 249 |
$this->noneHiddenPostTypes[$postType] = $postType; |
| 250 |
} |
| 251 |
} |
| 252 |
} |
| 253 |
} |
| 254 |
|
| 255 |
return $this->noneHiddenPostTypes; |
| 256 |
} |
| 257 |
|
| 258 |
/** |
| 259 |
* Returns the excluded posts. |
| 260 |
* |
| 261 |
* @return array |
| 262 |
*/ |
| 263 |
public function getExcludedPosts() |
| 264 |
{ |
| 265 |
if ($this->userHandler->checkUserAccess(UserHandler::MANAGE_USER_GROUPS_CAPABILITY)) { |
| 266 |
$this->excludedPosts = []; |
| 267 |
} |
| 268 |
|
| 269 |
if ($this->excludedPosts === null) { |
| 270 |
$noneHiddenPostTypes = $this->getNoneHiddenPostTypes(); |
| 271 |
$excludedPosts = $this->getExcludedObjects(ObjectHandler::GENERAL_POST_OBJECT_TYPE, $noneHiddenPostTypes); |
| 272 |
|
| 273 |
if ($this->mainConfig->authorsHasAccessToOwn() === true) { |
| 274 |
$query = $this->database->prepare( |
| 275 |
"SELECT ID |
| 276 |
FROM {$this->database->getPostsTable()} |
| 277 |
WHERE post_author = %d", |
| 278 |
$this->wordpress->getCurrentUser()->ID |
| 279 |
); |
| 280 |
|
| 281 |
$ownPosts = (array)$this->database->getResults($query); |
| 282 |
$ownPostIds = []; |
| 283 |
|
| 284 |
foreach ($ownPosts as $ownPost) { |
| 285 |
$ownPostIds[$ownPost->ID] = $ownPost->ID; |
| 286 |
} |
| 287 |
|
| 288 |
$excludedPosts = array_diff_key($excludedPosts, $ownPostIds); |
| 289 |
} |
| 290 |
|
| 291 |
$this->excludedPosts = $excludedPosts; |
| 292 |
} |
| 293 |
|
| 294 |
return $this->excludedPosts; |
| 295 |
} |
| 296 |
} |
| 297 |
|
