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1 | <?php |
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2 | |||
3 | namespace Kunstmaan\AdminBundle\Helper\Security\Acl; |
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4 | |||
5 | use Doctrine\DBAL\Query\QueryBuilder; |
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6 | use Doctrine\ORM\EntityManager; |
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7 | use Kunstmaan\AdminBundle\Helper\Security\Acl\Permission\MaskBuilder; |
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8 | use Kunstmaan\AdminBundle\Helper\Security\Acl\Permission\PermissionDefinition; |
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9 | use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface; |
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10 | use Symfony\Component\Security\Core\Authentication\Token\TokenInterface; |
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11 | use Symfony\Component\Security\Core\Role\RoleHierarchyInterface; |
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12 | use Symfony\Component\Security\Core\Role\RoleInterface; |
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13 | |||
14 | /** |
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15 | * AclHelper is a helper class to help setting the permissions when querying using native queries |
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16 | * |
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17 | * @see https://gist.github.com/1363377 |
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18 | */ |
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19 | class AclNativeHelper |
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20 | { |
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21 | /** |
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22 | * @var EntityManager |
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23 | */ |
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24 | private $em = null; |
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25 | |||
26 | /** |
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27 | * @var TokenStorageInterface |
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28 | */ |
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29 | private $tokenStorage = null; |
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30 | |||
31 | /** |
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32 | * @var RoleHierarchyInterface |
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33 | */ |
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34 | private $roleHierarchy = null; |
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35 | |||
36 | /** |
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37 | * Constructor. |
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38 | * |
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39 | * @param EntityManager $em The entity manager |
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40 | * @param TokenStorageInterface $tokenStorage The security context |
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41 | * @param RoleHierarchyInterface $rh The role hierarchies |
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42 | */ |
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43 | 3 | public function __construct(EntityManager $em, TokenStorageInterface $tokenStorage, RoleHierarchyInterface $rh) |
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44 | { |
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45 | 3 | $this->em = $em; |
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46 | 3 | $this->tokenStorage = $tokenStorage; |
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47 | 3 | $this->roleHierarchy = $rh; |
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48 | 3 | } |
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49 | |||
50 | /** |
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51 | * Apply the ACL constraints to the specified query builder, using the permission definition |
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52 | * |
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53 | * @param QueryBuilder $queryBuilder The query builder |
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54 | * @param PermissionDefinition $permissionDef The permission definition |
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55 | * |
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56 | * @return QueryBuilder |
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57 | */ |
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58 | 2 | public function apply(QueryBuilder $queryBuilder, PermissionDefinition $permissionDef) |
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59 | { |
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60 | 2 | $aclConnection = $this->em->getConnection(); |
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61 | |||
62 | 2 | $databasePrefix = is_file($aclConnection->getDatabase()) ? '' : $aclConnection->getDatabase().'.'; |
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63 | 2 | $rootEntity = $permissionDef->getEntity(); |
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64 | 2 | $linkAlias = $permissionDef->getAlias(); |
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65 | // Only tables with a single ID PK are currently supported |
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66 | 2 | $linkField = $this->em->getClassMetadata($rootEntity)->getSingleIdentifierColumnName(); |
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67 | |||
68 | 2 | $rootEntity = '"' . str_replace('\\', '\\\\', $rootEntity) . '"'; |
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69 | 2 | $query = $queryBuilder; |
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70 | |||
71 | 2 | $builder = new MaskBuilder(); |
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72 | 2 | View Code Duplication | foreach ($permissionDef->getPermissions() as $permission) { |
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This code seems to be duplicated across your project.
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository.
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73 | 2 | $mask = constant(get_class($builder) . '::MASK_' . strtoupper($permission)); |
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74 | 2 | $builder->add($mask); |
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75 | } |
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76 | 2 | $mask = $builder->get(); |
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77 | |||
78 | /* @var $token TokenInterface */ |
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79 | 2 | $token = $this->tokenStorage->getToken(); |
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80 | 2 | $userRoles = array(); |
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81 | 2 | View Code Duplication | if (!is_null($token)) { |
82 | 2 | $user = $token->getUser(); |
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83 | 2 | $userRoles = $this->roleHierarchy->getReachableRoles($token->getRoles()); |
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84 | } |
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85 | |||
86 | // Security context does not provide anonymous role automatically. |
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87 | 2 | $uR = array('"IS_AUTHENTICATED_ANONYMOUSLY"'); |
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88 | |||
89 | /* @var $role RoleInterface */ |
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90 | 2 | View Code Duplication | foreach ($userRoles as $role) { |
91 | // The reason we ignore this is because by default FOSUserBundle adds ROLE_USER for every user |
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92 | 1 | if ($role->getRole() !== 'ROLE_USER') { |
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93 | 1 | $uR[] = '"' . $role->getRole() . '"'; |
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94 | } |
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95 | } |
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96 | 2 | $uR = array_unique($uR); |
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97 | 2 | $inString = implode(' OR s.identifier = ', (array) $uR); |
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98 | |||
99 | 2 | View Code Duplication | if (is_object($user)) { |
100 | 1 | $inString .= ' OR s.identifier = "' . str_replace( |
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101 | 1 | '\\', |
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102 | 1 | '\\\\', |
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103 | 1 | get_class($user) |
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104 | 1 | ) . '-' . $user->getUserName() . '"'; |
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105 | } |
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106 | |||
107 | $joinTableQuery = <<<SELECTQUERY |
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108 | 2 | SELECT DISTINCT o.object_identifier as id FROM {$databasePrefix}acl_object_identities as o |
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109 | 2 | INNER JOIN {$databasePrefix}acl_classes c ON c.id = o.class_id |
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110 | 2 | LEFT JOIN {$databasePrefix}acl_entries e ON ( |
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111 | e.class_id = o.class_id AND (e.object_identity_id = o.id |
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112 | 2 | OR {$aclConnection->getDatabasePlatform()->getIsNullExpression('e.object_identity_id')}) |
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113 | ) |
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114 | 2 | LEFT JOIN {$databasePrefix}acl_security_identities s ON ( |
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115 | s.id = e.security_identity_id |
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116 | ) |
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117 | 2 | WHERE c.class_type = {$rootEntity} |
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118 | 2 | AND (s.identifier = {$inString}) |
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119 | 2 | AND e.mask & {$mask} > 0 |
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120 | SELECTQUERY; |
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121 | |||
122 | 2 | $query->join($linkAlias, '(' . $joinTableQuery . ')', 'perms_', 'perms_.id = ' . $linkAlias . '.' . $linkField); |
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123 | |||
124 | 2 | return $query; |
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125 | } |
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126 | |||
127 | /** |
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128 | * @return null|TokenStorageInterface |
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129 | */ |
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130 | 1 | public function getTokenStorage() |
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131 | { |
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132 | 1 | return $this->tokenStorage; |
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133 | } |
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134 | } |
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135 |
The
EntityManager
might become unusable for example if a transaction is rolled back and it gets closed. Let’s assume that somewhere in your application, or in a third-party library, there is code such as the following:If that code throws an exception and the
EntityManager
is closed. Any other code which depends on the same instance of theEntityManager
during this request will fail.On the other hand, if you instead inject the
ManagerRegistry
, thegetManager()
method guarantees that you will always get a usable manager instance.