Security update to Drupal 8.4.6

[yaffs-website] / vendor / doctrine / cache / lib / Doctrine / Common / Cache / LegacyMongoDBCache.php

diff --git a/vendor/doctrine/cache/lib/Doctrine/Common/Cache/LegacyMongoDBCache.php b/vendor/doctrine/cache/lib/Doctrine/Common/Cache/LegacyMongoDBCache.php
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+<?php
+/*
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This software consists of voluntary contributions made by many individuals
+ * and is licensed under the MIT license. For more information, see
+ * <http://www.doctrine-project.org>.
+ */
+
+namespace Doctrine\Common\Cache;
+
+use MongoBinData;
+use MongoCollection;
+use MongoCursorException;
+use MongoDate;
+
+/**
+ * MongoDB cache provider.
+ *
+ * @author Jeremy Mikola <jmikola@gmail.com>
+ * @internal Do not use - will be removed in 2.0. Use MongoDBCache instead
+ */
+class LegacyMongoDBCache extends CacheProvider
+{
+    /**
+     * @var MongoCollection
+     */
+    private $collection;
+
+    /**
+     * @var bool
+     */
+    private $expirationIndexCreated = false;
+
+    /**
+     * Constructor.
+     *
+     * This provider will default to the write concern and read preference
+     * options set on the MongoCollection instance (or inherited from MongoDB or
+     * MongoClient). Using an unacknowledged write concern (< 1) may make the
+     * return values of delete() and save() unreliable. Reading from secondaries
+     * may make contain() and fetch() unreliable.
+     *
+     * @see http://www.php.net/manual/en/mongo.readpreferences.php
+     * @see http://www.php.net/manual/en/mongo.writeconcerns.php
+     * @param MongoCollection $collection
+     */
+    public function __construct(MongoCollection $collection)
+    {
+        @trigger_error('Using the legacy MongoDB cache provider is deprecated and will be removed in 2.0', E_USER_DEPRECATED);
+        $this->collection = $collection;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFetch($id)
+    {
+        $document = $this->collection->findOne(['_id' => $id], [MongoDBCache::DATA_FIELD, MongoDBCache::EXPIRATION_FIELD]);
+
+        if ($document === null) {
+            return false;
+        }
+
+        if ($this->isExpired($document)) {
+            $this->createExpirationIndex();
+            $this->doDelete($id);
+            return false;
+        }
+
+        return unserialize($document[MongoDBCache::DATA_FIELD]->bin);
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doContains($id)
+    {
+        $document = $this->collection->findOne(['_id' => $id], [MongoDBCache::EXPIRATION_FIELD]);
+
+        if ($document === null) {
+            return false;
+        }
+
+        if ($this->isExpired($document)) {
+            $this->createExpirationIndex();
+            $this->doDelete($id);
+            return false;
+        }
+
+        return true;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doSave($id, $data, $lifeTime = 0)
+    {
+        try {
+            $result = $this->collection->update(
+                ['_id' => $id],
+                ['$set' => [
+                    MongoDBCache::EXPIRATION_FIELD => ($lifeTime > 0 ? new MongoDate(time() + $lifeTime) : null),
+                    MongoDBCache::DATA_FIELD => new MongoBinData(serialize($data), MongoBinData::BYTE_ARRAY),
+                ]],
+                ['upsert' => true, 'multiple' => false]
+            );
+        } catch (MongoCursorException $e) {
+            return false;
+        }
+
+        return ($result['ok'] ?? 1) == 1;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doDelete($id)
+    {
+        $result = $this->collection->remove(['_id' => $id]);
+
+        return ($result['ok'] ?? 1) == 1;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doFlush()
+    {
+        // Use remove() in lieu of drop() to maintain any collection indexes
+        $result = $this->collection->remove();
+
+        return ($result['ok'] ?? 1) == 1;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function doGetStats()
+    {
+        $serverStatus = $this->collection->db->command([
+            'serverStatus' => 1,
+            'locks' => 0,
+            'metrics' => 0,
+            'recordStats' => 0,
+            'repl' => 0,
+        ]);
+
+        $collStats = $this->collection->db->command(['collStats' => 1]);
+
+        return [
+            Cache::STATS_HITS => null,
+            Cache::STATS_MISSES => null,
+            Cache::STATS_UPTIME => $serverStatus['uptime'] ?? null,
+            Cache::STATS_MEMORY_USAGE => $collStats['size'] ?? null,
+            Cache::STATS_MEMORY_AVAILABLE  => null,
+        ];
+    }
+
+    /**
+     * Check if the document is expired.
+     *
+     * @param array $document
+     *
+     * @return bool
+     */
+    private function isExpired(array $document) : bool
+    {
+        return isset($document[MongoDBCache::EXPIRATION_FIELD]) &&
+            $document[MongoDBCache::EXPIRATION_FIELD] instanceof MongoDate &&
+            $document[MongoDBCache::EXPIRATION_FIELD]->sec < time();
+    }
+
+
+    private function createExpirationIndex(): void
+    {
+        if ($this->expirationIndexCreated) {
+            return;
+        }
+
+        $this->expirationIndexCreated = true;
+        $this->collection->createIndex([MongoDBCache::EXPIRATION_FIELD => 1], ['background' => true, 'expireAfterSeconds' => 0]);
+    }
+}