nextcloud /
server
| Total Complexity | 79 |
| Total Lines | 524 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like Manager often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Manager, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 39 | class Manager implements IManager { |
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| 40 | |||
| 41 | public const TABLE_COLLECTIONS = 'collres_collections'; |
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| 42 | public const TABLE_RESOURCES = 'collres_resources'; |
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| 43 | public const TABLE_ACCESS_CACHE = 'collres_accesscache'; |
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| 44 | |||
| 45 | /** @var IDBConnection */ |
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| 46 | protected $connection; |
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| 47 | /** @var ILogger */ |
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| 48 | protected $logger; |
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| 49 | |||
| 50 | /** @var string[] */ |
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| 51 | protected $providers = []; |
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| 52 | |||
| 53 | /** @var IProvider[] */ |
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| 54 | protected $providerInstances = []; |
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| 55 | |||
| 56 | public function __construct(IDBConnection $connection, ILogger $logger) { |
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| 57 | $this->connection = $connection; |
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| 58 | $this->logger = $logger; |
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| 59 | } |
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| 60 | |||
| 61 | /** |
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| 62 | * @param int $id |
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| 63 | * @return ICollection |
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| 64 | * @throws CollectionException when the collection could not be found |
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| 65 | * @since 16.0.0 |
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| 66 | */ |
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| 67 | public function getCollection(int $id): ICollection { |
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| 68 | $query = $this->connection->getQueryBuilder(); |
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| 69 | $query->select('*') |
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| 70 | ->from(self::TABLE_COLLECTIONS) |
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| 71 | ->where($query->expr()->eq('id', $query->createNamedParameter($id, IQueryBuilder::PARAM_INT))); |
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| 72 | $result = $query->execute(); |
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| 73 | $row = $result->fetch(); |
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| 74 | $result->closeCursor(); |
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| 75 | |||
| 76 | if (!$row) { |
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| 77 | throw new CollectionException('Collection not found'); |
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| 78 | } |
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| 79 | |||
| 80 | return new Collection($this, $this->connection, (int) $row['id'], (string) $row['name']); |
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| 81 | } |
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| 82 | |||
| 83 | /** |
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| 84 | * @param int $id |
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| 85 | * @param IUser|null $user |
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| 86 | * @return ICollection |
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| 87 | * @throws CollectionException when the collection could not be found |
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| 88 | * @since 16.0.0 |
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| 89 | */ |
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| 90 | public function getCollectionForUser(int $id, ?IUser $user): ICollection { |
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| 91 | $query = $this->connection->getQueryBuilder(); |
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| 92 | $userId = $user instanceof IUser ? $user->getUID() : ''; |
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| 93 | |||
| 94 | $query->select('*') |
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| 95 | ->from(self::TABLE_COLLECTIONS, 'c') |
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| 96 | ->leftJoin( |
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| 97 | 'c', self::TABLE_ACCESS_CACHE, 'a', |
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| 98 | $query->expr()->andX( |
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|
Bug
introduced
by
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| 99 | $query->expr()->eq('c.id', 'a.collection_id'), |
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| 100 | $query->expr()->eq('a.user_id', $query->createNamedParameter($userId, IQueryBuilder::PARAM_STR)) |
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| 101 | ) |
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| 102 | ) |
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| 103 | ->where($query->expr()->eq('c.id', $query->createNamedParameter($id, IQueryBuilder::PARAM_INT))); |
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| 104 | $result = $query->execute(); |
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| 105 | $row = $result->fetch(); |
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| 106 | $result->closeCursor(); |
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| 107 | |||
| 108 | if (!$row) { |
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| 109 | throw new CollectionException('Collection not found'); |
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| 110 | } |
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| 111 | |||
| 112 | $access = $row['access'] === null ? null : (bool) $row['access']; |
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| 113 | if ($user instanceof IUser) { |
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| 114 | return new Collection($this, $this->connection, (int) $row['id'], (string) $row['name'], $user, $access); |
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| 115 | } |
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| 116 | |||
| 117 | return new Collection($this, $this->connection, (int) $row['id'], (string) $row['name'], $user, $access); |
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| 118 | } |
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| 119 | |||
| 120 | /** |
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| 121 | * @param IUser $user |
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| 122 | * @param string $filter |
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| 123 | * @param int $limit |
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| 124 | * @param int $start |
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| 125 | * @return ICollection[] |
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| 126 | * @since 16.0.0 |
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| 127 | */ |
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| 128 | public function searchCollections(IUser $user, string $filter, int $limit = 50, int $start = 0): array { |
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| 129 | $query = $this->connection->getQueryBuilder(); |
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| 130 | $userId = $user instanceof IUser ? $user->getUID() : ''; |
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| 131 | |||
| 132 | $query->select('c.*', 'a.access') |
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| 133 | ->from(self::TABLE_COLLECTIONS, 'c') |
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| 134 | ->leftJoin( |
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| 135 | 'c', self::TABLE_ACCESS_CACHE, 'a', |
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| 136 | $query->expr()->andX( |
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| 137 | $query->expr()->eq('c.id', 'a.collection_id'), |
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| 138 | $query->expr()->eq('a.user_id', $query->createNamedParameter($userId, IQueryBuilder::PARAM_STR)) |
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| 139 | ) |
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| 140 | ) |
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| 141 | ->where($query->expr()->iLike('c.name', $query->createNamedParameter($filter, IQueryBuilder::PARAM_STR))) |
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| 142 | ->andWhere($query->expr()->eq('a.access', $query->createNamedParameter(1, IQueryBuilder::PARAM_INT))) |
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| 143 | ->orderBy('c.id') |
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| 144 | ->setMaxResults($limit) |
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| 145 | ->setFirstResult($start); |
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| 146 | $result = $query->execute(); |
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| 147 | $collections = []; |
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| 148 | |||
| 149 | $foundResults = 0; |
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| 150 | while ($row = $result->fetch()) { |
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| 151 | $foundResults++; |
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| 152 | $access = $row['access'] === null ? null : (bool) $row['access']; |
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| 153 | $collection = new Collection($this, $this->connection, (int)$row['id'], (string)$row['name'], $user, $access); |
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| 154 | if ($collection->canAccess($user)) { |
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| 155 | $collections[] = $collection; |
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| 156 | } |
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| 157 | } |
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| 158 | $result->closeCursor(); |
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| 159 | |||
| 160 | if (empty($collections) && $foundResults === $limit) { |
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| 161 | $this->searchCollections($user, $filter, $limit, $start + $limit); |
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| 162 | } |
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| 163 | |||
| 164 | return $collections; |
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| 165 | } |
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| 166 | |||
| 167 | /** |
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| 168 | * @param string $name |
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| 169 | * @return ICollection |
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| 170 | * @since 16.0.0 |
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| 171 | */ |
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| 172 | public function newCollection(string $name): ICollection { |
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| 173 | $query = $this->connection->getQueryBuilder(); |
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| 174 | $query->insert(self::TABLE_COLLECTIONS) |
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| 175 | ->values([ |
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| 176 | 'name' => $query->createNamedParameter($name), |
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| 177 | ]); |
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| 178 | $query->execute(); |
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| 179 | |||
| 180 | return new Collection($this, $this->connection, $query->getLastInsertId(), $name); |
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| 181 | } |
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| 182 | |||
| 183 | /** |
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| 184 | * @param string $type |
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| 185 | * @param string $id |
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| 186 | * @return IResource |
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| 187 | * @since 16.0.0 |
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| 188 | */ |
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| 189 | public function createResource(string $type, string $id): IResource { |
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| 190 | return new Resource($this, $this->connection, $type, $id); |
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| 191 | } |
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| 192 | |||
| 193 | /** |
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| 194 | * @param string $type |
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| 195 | * @param string $id |
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| 196 | * @param IUser|null $user |
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| 197 | * @return IResource |
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| 198 | * @throws ResourceException |
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| 199 | * @since 16.0.0 |
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| 200 | */ |
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| 201 | public function getResourceForUser(string $type, string $id, ?IUser $user): IResource { |
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| 202 | $query = $this->connection->getQueryBuilder(); |
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| 203 | $userId = $user instanceof IUser ? $user->getUID() : ''; |
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| 204 | |||
| 205 | $query->select('r.*', 'a.access') |
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| 206 | ->from(self::TABLE_RESOURCES, 'r') |
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| 207 | ->leftJoin( |
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| 208 | 'r', self::TABLE_ACCESS_CACHE, 'a', |
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| 209 | $query->expr()->andX( |
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| 210 | $query->expr()->eq('r.resource_id', 'a.resource_id'), |
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| 211 | $query->expr()->eq('r.resource_type', 'a.resource_type'), |
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| 212 | $query->expr()->eq('a.user_id', $query->createNamedParameter($userId, IQueryBuilder::PARAM_STR)) |
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| 213 | ) |
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| 214 | ) |
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| 215 | ->where($query->expr()->eq('r.resource_type', $query->createNamedParameter($type, IQueryBuilder::PARAM_STR))) |
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| 216 | ->andWhere($query->expr()->eq('r.resource_id', $query->createNamedParameter($id, IQueryBuilder::PARAM_STR))); |
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| 217 | $result = $query->execute(); |
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| 218 | $row = $result->fetch(); |
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| 219 | $result->closeCursor(); |
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| 220 | |||
| 221 | if (!$row) { |
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| 222 | throw new ResourceException('Resource not found'); |
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| 223 | } |
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| 224 | |||
| 225 | $access = $row['access'] === null ? null : (bool) $row['access']; |
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| 226 | if ($user instanceof IUser) { |
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| 227 | return new Resource($this, $this->connection, $type, $id, $user, $access); |
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| 228 | } |
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| 229 | |||
| 230 | return new Resource($this, $this->connection, $type, $id, null, $access); |
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| 231 | } |
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| 232 | |||
| 233 | /** |
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| 234 | * @param ICollection $collection |
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| 235 | * @param IUser|null $user |
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| 236 | * @return IResource[] |
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| 237 | * @since 16.0.0 |
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| 238 | */ |
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| 239 | public function getResourcesByCollectionForUser(ICollection $collection, ?IUser $user): array { |
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| 240 | $query = $this->connection->getQueryBuilder(); |
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| 241 | $userId = $user instanceof IUser ? $user->getUID() : ''; |
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| 242 | |||
| 243 | $query->select('r.*', 'a.access') |
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| 244 | ->from(self::TABLE_RESOURCES, 'r') |
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| 245 | ->leftJoin( |
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| 246 | 'r', self::TABLE_ACCESS_CACHE, 'a', |
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| 247 | $query->expr()->andX( |
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| 248 | $query->expr()->eq('r.resource_id', 'a.resource_id'), |
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| 249 | $query->expr()->eq('r.resource_type', 'a.resource_type'), |
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| 250 | $query->expr()->eq('a.user_id', $query->createNamedParameter($userId, IQueryBuilder::PARAM_STR)) |
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| 251 | ) |
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| 252 | ) |
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| 253 | ->where($query->expr()->eq('r.collection_id', $query->createNamedParameter($collection->getId(), IQueryBuilder::PARAM_INT))); |
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| 254 | |||
| 255 | $resources = []; |
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| 256 | $result = $query->execute(); |
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| 257 | while ($row = $result->fetch()) { |
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| 258 | $access = $row['access'] === null ? null : (bool) $row['access']; |
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| 259 | $resources[] = new Resource($this, $this->connection, $row['resource_type'], $row['resource_id'], $user, $access); |
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| 260 | } |
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| 261 | $result->closeCursor(); |
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| 262 | |||
| 263 | return $resources; |
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| 264 | } |
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| 265 | |||
| 266 | /** |
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| 267 | * @return IProvider[] |
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| 268 | * @since 16.0.0 |
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| 269 | */ |
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| 270 | public function getProviders(): array { |
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| 271 | if (!empty($this->providers)) { |
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| 272 | foreach ($this->providers as $provider) { |
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| 273 | try { |
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| 274 | $this->providerInstances[] = \OC::$server->query($provider); |
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| 275 | } catch (QueryException $e) { |
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| 276 | $this->logger->logException($e, [ |
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| 277 | 'message' => 'Error when instantiating resource provider' |
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| 278 | ]); |
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| 279 | } |
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| 280 | } |
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| 281 | $this->providers = []; |
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| 282 | } |
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| 283 | |||
| 284 | return $this->providerInstances; |
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| 285 | } |
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| 286 | |||
| 287 | /** |
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| 288 | * Get the display name of a resource |
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| 289 | * |
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| 290 | * @param IResource $resource |
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| 291 | * @return string |
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| 292 | * @since 16.0.0 |
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| 293 | */ |
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| 294 | public function getName(IResource $resource): string { |
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| 295 | foreach ($this->getProviders() as $provider) { |
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| 296 | if ($provider->getType() === $resource->getType()) { |
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| 297 | try { |
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| 298 | return $provider->getName($resource); |
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| 299 | } catch (ResourceException $e) { |
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| 300 | } |
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| 301 | } |
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| 302 | } |
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| 303 | |||
| 304 | return ''; |
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| 305 | } |
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| 306 | |||
| 307 | /** |
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| 308 | * |
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| 309 | * @param IResource $resource |
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| 310 | * @return string |
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| 311 | */ |
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| 312 | public function getIconClass(IResource $resource): string { |
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| 313 | foreach ($this->getProviders() as $provider) { |
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| 314 | if ($provider->getType() === $resource->getType()) { |
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| 315 | try { |
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| 316 | return $provider->getIconClass($resource); |
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| 317 | } catch (ResourceException $e) { |
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| 318 | } |
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| 319 | } |
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| 320 | } |
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| 321 | |||
| 322 | return ''; |
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| 323 | } |
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| 324 | |||
| 325 | /** |
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| 326 | * Can a user/guest access the collection |
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| 327 | * |
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| 328 | * @param IResource $resource |
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| 329 | * @param IUser|null $user |
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| 330 | * @return bool |
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| 331 | * @since 16.0.0 |
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| 332 | */ |
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| 333 | public function canAccessResource(IResource $resource, ?IUser $user): bool { |
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| 334 | $access = $this->checkAccessCacheForUserByResource($resource, $user); |
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| 335 | if (\is_bool($access)) { |
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| 336 | return $access; |
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| 337 | } |
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| 338 | |||
| 339 | $access = false; |
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| 340 | foreach ($this->getProviders() as $provider) { |
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| 341 | if ($provider->getType() === $resource->getType()) { |
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| 342 | try { |
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| 343 | if ($provider->canAccessResource($resource, $user)) { |
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| 344 | $access = true; |
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| 345 | break; |
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| 346 | } |
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| 347 | } catch (ResourceException $e) { |
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| 348 | } |
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| 349 | } |
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| 350 | } |
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| 351 | |||
| 352 | $this->cacheAccessForResource($resource, $user, $access); |
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| 353 | return $access; |
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| 354 | } |
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| 355 | |||
| 356 | /** |
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| 357 | * Can a user/guest access the collection |
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| 358 | * |
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| 359 | * @param ICollection $collection |
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| 360 | * @param IUser|null $user |
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| 361 | * @return bool |
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| 362 | * @since 16.0.0 |
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| 363 | */ |
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| 364 | public function canAccessCollection(ICollection $collection, ?IUser $user): bool { |
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| 365 | $access = $this->checkAccessCacheForUserByCollection($collection, $user); |
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| 366 | if (\is_bool($access)) { |
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| 367 | return $access; |
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| 368 | } |
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| 369 | |||
| 370 | $access = false; |
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| 371 | foreach ($collection->getResources() as $resource) { |
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| 372 | if ($resource->canAccess($user)) { |
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| 373 | $access = true; |
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| 374 | break; |
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| 375 | } |
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| 376 | } |
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| 377 | |||
| 378 | $this->cacheAccessForCollection($collection, $user, $access); |
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| 379 | return $access; |
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| 380 | } |
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| 381 | |||
| 382 | protected function checkAccessCacheForUserByResource(IResource $resource, ?IUser $user): ?bool { |
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| 383 | $query = $this->connection->getQueryBuilder(); |
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| 384 | $userId = $user instanceof IUser ? $user->getUID() : ''; |
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| 385 | |||
| 386 | $query->select('access') |
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| 387 | ->from(self::TABLE_ACCESS_CACHE) |
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| 388 | ->where($query->expr()->eq('resource_id', $query->createNamedParameter($resource->getId(), IQueryBuilder::PARAM_STR))) |
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| 389 | ->andWhere($query->expr()->eq('resource_type', $query->createNamedParameter($resource->getType(), IQueryBuilder::PARAM_STR))) |
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| 390 | ->andWhere($query->expr()->eq('user_id', $query->createNamedParameter($userId, IQueryBuilder::PARAM_STR))) |
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| 391 | ->setMaxResults(1); |
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| 392 | |||
| 393 | $hasAccess = null; |
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| 394 | $result = $query->execute(); |
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| 395 | if ($row = $result->fetch()) { |
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| 396 | $hasAccess = (bool) $row['access']; |
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| 397 | } |
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| 398 | $result->closeCursor(); |
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| 399 | |||
| 400 | return $hasAccess; |
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| 401 | } |
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| 402 | |||
| 403 | protected function checkAccessCacheForUserByCollection(ICollection $collection, ?IUser $user): ?bool { |
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| 404 | $query = $this->connection->getQueryBuilder(); |
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| 405 | $userId = $user instanceof IUser ? $user->getUID() : ''; |
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| 406 | |||
| 407 | $query->select('access') |
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| 408 | ->from(self::TABLE_ACCESS_CACHE) |
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| 409 | ->where($query->expr()->eq('collection_id', $query->createNamedParameter($collection->getId(), IQueryBuilder::PARAM_INT))) |
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| 410 | ->andWhere($query->expr()->eq('user_id', $query->createNamedParameter($userId, IQueryBuilder::PARAM_STR))) |
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| 411 | ->setMaxResults(1); |
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| 412 | |||
| 413 | $hasAccess = null; |
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| 414 | $result = $query->execute(); |
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| 415 | if ($row = $result->fetch()) { |
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| 416 | $hasAccess = (bool) $row['access']; |
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| 417 | } |
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| 418 | $result->closeCursor(); |
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| 419 | |||
| 420 | return $hasAccess; |
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| 421 | } |
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| 422 | |||
| 423 | public function cacheAccessForResource(IResource $resource, ?IUser $user, bool $access): void { |
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| 424 | $query = $this->connection->getQueryBuilder(); |
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| 425 | $userId = $user instanceof IUser ? $user->getUID() : ''; |
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| 426 | |||
| 427 | $query->insert(self::TABLE_ACCESS_CACHE) |
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| 428 | ->values([ |
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| 429 | 'user_id' => $query->createNamedParameter($userId), |
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| 430 | 'resource_id' => $query->createNamedParameter($resource->getId()), |
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| 431 | 'resource_type' => $query->createNamedParameter($resource->getType()), |
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| 432 | 'access' => $query->createNamedParameter($access), |
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| 433 | ]); |
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| 434 | try { |
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| 435 | $query->execute(); |
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| 436 | } catch (UniqueConstraintViolationException $e) { |
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| 437 | } |
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| 438 | } |
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| 439 | |||
| 440 | public function cacheAccessForCollection(ICollection $collection, ?IUser $user, bool $access): void { |
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| 441 | $query = $this->connection->getQueryBuilder(); |
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| 442 | $userId = $user instanceof IUser ? $user->getUID() : ''; |
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| 443 | |||
| 444 | $query->insert(self::TABLE_ACCESS_CACHE) |
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| 445 | ->values([ |
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| 446 | 'user_id' => $query->createNamedParameter($userId), |
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| 447 | 'collection_id' => $query->createNamedParameter($collection->getId()), |
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| 448 | 'access' => $query->createNamedParameter($access), |
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| 449 | ]); |
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| 450 | try { |
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| 451 | $query->execute(); |
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| 452 | } catch (UniqueConstraintViolationException $e) { |
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| 453 | } |
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| 454 | } |
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| 455 | |||
| 456 | public function invalidateAccessCacheForUser(?IUser $user): void { |
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| 463 | } |
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| 464 | |||
| 465 | public function invalidateAccessCacheForResource(IResource $resource): void { |
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| 466 | $query = $this->connection->getQueryBuilder(); |
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| 467 | |||
| 468 | $query->delete(self::TABLE_ACCESS_CACHE) |
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| 469 | ->where($query->expr()->eq('resource_id', $query->createNamedParameter($resource->getId()))) |
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| 470 | ->andWhere($query->expr()->eq('resource_type', $query->createNamedParameter($resource->getType(), IQueryBuilder::PARAM_STR))); |
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| 471 | $query->execute(); |
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| 472 | |||
| 473 | foreach ($resource->getCollections() as $collection) { |
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| 474 | $this->invalidateAccessCacheForCollection($collection); |
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| 475 | } |
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| 476 | } |
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| 477 | |||
| 478 | public function invalidateAccessCacheForCollection(ICollection $collection): void { |
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| 479 | $query = $this->connection->getQueryBuilder(); |
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| 480 | |||
| 481 | $query->delete(self::TABLE_ACCESS_CACHE) |
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| 482 | ->where($query->expr()->eq('collection_id', $query->createNamedParameter($collection->getId()))); |
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| 483 | $query->execute(); |
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| 484 | } |
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| 485 | |||
| 486 | public function invalidateAccessCacheForProvider(IProvider $provider): void { |
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| 492 | } |
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| 493 | |||
| 494 | public function invalidateAccessCacheForResourceByUser(IResource $resource, ?IUser $user): void { |
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| 495 | $query = $this->connection->getQueryBuilder(); |
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| 496 | $userId = $user instanceof IUser ? $user->getUID() : ''; |
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| 497 | |||
| 498 | $query->delete(self::TABLE_ACCESS_CACHE) |
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| 499 | ->where($query->expr()->eq('resource_id', $query->createNamedParameter($resource->getId()))) |
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| 500 | ->andWhere($query->expr()->eq('user_id', $query->createNamedParameter($userId))); |
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| 501 | $query->execute(); |
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| 502 | |||
| 503 | foreach ($resource->getCollections() as $collection) { |
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| 504 | $this->invalidateAccessCacheForCollectionByUser($collection, $user); |
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| 505 | } |
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| 506 | } |
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| 507 | |||
| 508 | protected function invalidateAccessCacheForCollectionByUser(ICollection $collection, ?IUser $user): void { |
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| 516 | } |
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| 517 | |||
| 518 | public function invalidateAccessCacheForProviderByUser(IProvider $provider, ?IUser $user): void { |
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| 519 | $query = $this->connection->getQueryBuilder(); |
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| 520 | $userId = $user instanceof IUser ? $user->getUID() : ''; |
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| 521 | |||
| 522 | $query->delete(self::TABLE_ACCESS_CACHE) |
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| 523 | ->where($query->expr()->eq('resource_type', $query->createNamedParameter($provider->getType(), IQueryBuilder::PARAM_STR))) |
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| 524 | ->andWhere($query->expr()->eq('user_id', $query->createNamedParameter($userId))); |
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| 525 | $query->execute(); |
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| 526 | } |
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| 527 | |||
| 528 | /** |
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| 529 | * @param string $provider |
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| 530 | */ |
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| 531 | public function registerResourceProvider(string $provider): void { |
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| 533 | } |
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| 534 | |||
| 535 | /** |
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| 536 | * Get the resource type of the provider |
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| 537 | * |
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| 538 | * @return string |
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| 539 | * @since 16.0.0 |
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| 540 | */ |
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| 541 | public function getType(): string { |
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| 542 | return ''; |
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| 543 | } |
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| 544 | |||
| 545 | /** |
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| 546 | * Get the link to a resource |
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| 547 | * |
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| 548 | * @param IResource $resource |
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| 549 | * @return string |
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| 550 | * @since 16.0.0 |
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| 551 | */ |
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| 552 | public function getLink(IResource $resource): string { |
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| 563 | } |
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| 564 | } |
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| 565 |
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