13 files changed, 631 insertions, 0 deletions

diff --git a/3rdparty b/3rdparty
-Subproject 489bcf4f81e462f4d74f0b76f58caeabd58e75d
+Subproject 2838fa6777b1427c6c912a5e599a96639ac2b31
diff --git a/apps/dav/lib/Files/FileSearchBackend.php b/apps/dav/lib/Files/FileSearchBackend.php
new file mode 100644
index 00000000000..2a89c756d35
--- /dev/null
+++ b/apps/dav/lib/Files/FileSearchBackend.php
@@ -0,0 +1,76 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\DAV\Files;
+
+use OCA\DAV\Connector\Sabre\Directory;
+use Sabre\DAV\Exception\NotFound;
+use Sabre\DAV\Tree;
+use SearchDAV\Backend\ISearchBackend;
+use SearchDAV\Backend\SearchPropertyDefinition;
+
+class FileSearchBackend implements ISearchBackend {
+	/** @var Tree */
+	private $tree;
+
+	/**
+	 * FileSearchBackend constructor.
+	 *
+	 * @param Tree $tree
+	 */
+	public function __construct(Tree $tree) {
+		$this->tree = $tree;
+	}
+
+	/**
+	 * Search endpoint will be remote.php/dav/files
+	 *
+	 * @return string
+	 */
+	public function getArbiterPath() {
+		return 'files';
+	}
+
+	public function isValidScope($href, $depth, $path) {
+		// only allow scopes inside the dav server
+		if (is_null($path)) {
+			return false;
+		}
+
+		try {
+			$node = $this->tree->getNodeForPath($path);
+			return $node instanceof Directory;
+		} catch (NotFound $e) {
+			return false;
+		}
+	}
+
+	public function getPropertyDefinitionsForScope($href, $path) {
+		// all valid scopes support the same schema
+
+		return [
+			new SearchPropertyDefinition('{DAV:}getcontentlength', true, true, true, SearchPropertyDefinition::DATATYPE_NONNEGATIVE_INTEGER),
+			new SearchPropertyDefinition('{DAV:}getcontenttype', true, true, true),
+			new SearchPropertyDefinition('{DAV:}displayname', true, true, true),
+			new SearchPropertyDefinition('{http://ns.nextcloud.com:}fileid', false, true, true, SearchPropertyDefinition::DATATYPE_NONNEGATIVE_INTEGER),
+		];
+	}
+}
diff --git a/lib/private/Files/Cache/QuerySearchHelper.php b/lib/private/Files/Cache/QuerySearchHelper.php
new file mode 100644
index 00000000000..60f4e484da5
--- /dev/null
+++ b/lib/private/Files/Cache/QuerySearchHelper.php
@@ -0,0 +1,155 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Files\Cache;
+
+use OCP\DB\QueryBuilder\IQueryBuilder;
+use OCP\Files\IMimeTypeLoader;
+use OCP\Files\Search\ISearchBinaryOperator;
+use OCP\Files\Search\ISearchComparison;
+use OCP\Files\Search\ISearchOperator;
+
+/**
+ * Tools for transforming search queries into database queries
+ */
+class QuerySearchUtil {
+	static protected $searchOperatorMap = [
+		ISearchComparison::COMPARE_LIKE => 'iLike',
+		ISearchComparison::COMPARE_EQUAL => 'eq',
+		ISearchComparison::COMPARE_GREATER_THAN => 'gt',
+		ISearchComparison::COMPARE_GREATER_THAN_EQUAL => 'gte',
+		ISearchComparison::COMPARE_LESS_THAN => 'lt',
+		ISearchComparison::COMPARE_LESS_THAN_EQUAL => 'lte'
+	];
+
+	static protected $searchOperatorNegativeMap = [
+		ISearchComparison::COMPARE_LIKE => 'notLike',
+		ISearchComparison::COMPARE_EQUAL => 'neq',
+		ISearchComparison::COMPARE_GREATER_THAN => 'lte',
+		ISearchComparison::COMPARE_GREATER_THAN_EQUAL => 'lt',
+		ISearchComparison::COMPARE_LESS_THAN => 'gte',
+		ISearchComparison::COMPARE_LESS_THAN_EQUAL => 'lt'
+	];
+
+	/** @var IMimeTypeLoader */
+	private $mimetypeLoader;
+
+	/**
+	 * QuerySearchUtil constructor.
+	 *
+	 * @param IMimeTypeLoader $mimetypeLoader
+	 */
+	public function __construct(IMimeTypeLoader $mimetypeLoader) {
+		$this->mimetypeLoader = $mimetypeLoader;
+	}
+
+	public function searchOperatorToDBExpr(IQueryBuilder $builder, ISearchOperator $operator) {
+		$expr = $builder->expr();
+		if ($operator instanceof ISearchBinaryOperator) {
+			switch ($operator->getType()) {
+				case ISearchBinaryOperator::OPERATOR_NOT:
+					$negativeOperator = $operator->getArguments()[0];
+					if ($negativeOperator instanceof ISearchComparison) {
+						return $this->searchComparisonToDBExpr($builder, $negativeOperator, self::$searchOperatorNegativeMap);
+					} else {
+						throw new \InvalidArgumentException('Binary operators inside "not" is not supported');
+					}
+				case ISearchBinaryOperator::OPERATOR_AND:
+					return $expr->andX($this->searchOperatorToDBExpr($operator->getArguments()[0], $operator->getArguments()[1]));
+				case ISearchBinaryOperator::OPERATOR_OR:
+					return $expr->orX($this->searchOperatorToDBExpr($operator->getArguments()[0], $operator->getArguments()[1]));
+				default:
+					throw new \InvalidArgumentException('Invalid operator type: ' . $operator->getType());
+			}
+		} else if ($operator instanceof ISearchComparison) {
+			return $this->searchComparisonToDBExpr($builder, $operator, self::$searchOperatorMap);
+		} else {
+			throw new \InvalidArgumentException('Invalid operator type: ' . get_class($operator));
+		}
+	}
+
+	private function searchComparisonToDBExpr(IQueryBuilder $builder, ISearchComparison $comparison, array $operatorMap) {
+		if (!$this->isValidComparison($comparison)) {
+			throw new \InvalidArgumentException('Invalid comparison ' . $operator->getType() . ' on field ' . $operator->getField());
+		}
+
+		list($field, $value) = $this->getOperatorFieldAndValue($comparison);
+		if (isset($operatorMap[$comparison->getType()])) {
+			$queryOperator = $operatorMap[$comparison->getType()];
+			return $builder->expr()->$queryOperator($field, $this->getParameterForValue($builder, $value));
+		} else {
+			throw new \InvalidArgumentException('Invalid operator type: ' . $comparison->getType());
+		}
+	}
+
+	private function getOperatorFieldAndValue(ISearchComparison $operator) {
+		$field = $operator->getField();
+		$value = $operator->getValue();
+		if ($field === 'mimetype') {
+			if ($operator->getType() === ISearchComparison::COMPARE_EQUAL) {
+				$value = $this->mimetypeLoader->getId($value);
+			} else if ($operator->getType() === ISearchComparison::COMPARE_LIKE) {
+				// transform "mimetype='foo/%'" to "mimepart='foo'"
+				if (preg_match('|(.+)/%|', $value, $matches)) {
+					$field = 'mimepart';
+					$value = $this->mimetypeLoader->getId($matches[1]);
+				}
+			}
+		}
+		return [$field, $value];
+	}
+
+	private function isValidComparison(ISearchComparison $operator) {
+		$types = [
+			'mimetype' => 'string',
+			'mtime' => \DateTime::class,
+			'name' => 'string',
+			'size' => 'integer'
+		];
+		$comparisons = [
+			'mimetype' => ['eq', 'like'],
+			'mtime' => ['eq', 'gt', 'lt', 'gte', 'lte'],
+			'name' => ['eq', 'like'],
+			'size' => ['eq', 'gt', 'lt', 'gte', 'lte']
+		];
+
+		if (!isset($types[$operator->getField()])) {
+			return false;
+		}
+		$type = $types[$operator->getField()];
+		if (gettype($operator->getValue()) !== $type && !(is_a($operator->getValue(), $type))) {
+			return false;
+		}
+		return in_array($operator->getType(), $comparisons[$operator->getField()]);
+	}
+
+	private function getParameterForValue(IQueryBuilder $builder, $value) {
+		if ($value instanceof \DateTime) {
+			$value = $value->getTimestamp();
+		}
+		if (is_numeric($value)) {
+			$type = IQueryBuilder::PARAM_INT;
+		} else {
+			$type = IQueryBuilder::PARAM_STR;
+		}
+		return $builder->createNamedParameter($value, $type);
+	}
+}
diff --git a/lib/private/Files/Search/SearchBinaryOperator.php b/lib/private/Files/Search/SearchBinaryOperator.php
new file mode 100644
index 00000000000..15944e27768
--- /dev/null
+++ b/lib/private/Files/Search/SearchBinaryOperator.php
@@ -0,0 +1,20 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
diff --git a/lib/private/Files/Search/SearchComparison.php b/lib/private/Files/Search/SearchComparison.php
new file mode 100644
index 00000000000..32c4ad0e5aa
--- /dev/null
+++ b/lib/private/Files/Search/SearchComparison.php
@@ -0,0 +1,67 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Files\Search;
+
+use OCP\Files\Search\ISearchComparison;
+
+class SearchComparison implements ISearchComparison {
+	/** @var string */
+	private $type;
+	/** @var string */
+	private $field;
+	/** @var string|integer|\DateTime */
+	private $value;
+
+	/**
+	 * SearchComparison constructor.
+	 *
+	 * @param string $type
+	 * @param string $field
+	 * @param \DateTime|int|string $value
+	 */
+	public function __construct($type, $field, $value) {
+		$this->type = $type;
+		$this->field = $field;
+		$this->value = $value;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getType() {
+		return $this->type;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getField() {
+		return $this->field;
+	}
+
+	/**
+	 * @return \DateTime|int|string
+	 */
+	public function getValue() {
+		return $this->value;
+	}
+}
diff --git a/lib/private/Files/Search/SearchOrder.php b/lib/private/Files/Search/SearchOrder.php
new file mode 100644
index 00000000000..c76d6f2e25e
--- /dev/null
+++ b/lib/private/Files/Search/SearchOrder.php
@@ -0,0 +1,57 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Files\Search;
+
+
+use OCP\Files\Search\ISearchOrder;
+
+class SearchOrder implements ISearchOrder {
+	/** @var  string */
+	private $direction;
+	/** @var  string */
+	private $field;
+
+	/**
+	 * SearchOrder constructor.
+	 *
+	 * @param string $direction
+	 * @param string $field
+	 */
+	public function __construct($direction, $field) {
+		$this->direction = $direction;
+		$this->field = $field;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getDirection() {
+		return $this->direction;
+	}
+
+	/**
+	 * @return string
+	 */
+	public function getField() {
+		return $this->field;
+	}
+}
diff --git a/lib/private/Files/Search/SearchQuery.php b/lib/private/Files/Search/SearchQuery.php
new file mode 100644
index 00000000000..a017d3e245b
--- /dev/null
+++ b/lib/private/Files/Search/SearchQuery.php
@@ -0,0 +1,23 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OC\Files\Search;
+
diff --git a/lib/public/Files/Search/ISearchBinaryOperator.php b/lib/public/Files/Search/ISearchBinaryOperator.php
new file mode 100644
index 00000000000..248e3de56b8
--- /dev/null
+++ b/lib/public/Files/Search/ISearchBinaryOperator.php
@@ -0,0 +1,46 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\Files\Search;
+
+interface ISearchBinaryOperator extends ISearchOperator {
+	const OPERATOR_AND = 'and';
+	const OPERATOR_OR = 'or';
+	const OPERATOR_NOT = 'not';
+
+	/**
+	 * The type of binary operator
+	 *
+	 * One of the ISearchBinaryOperator::OPERATOR_* constants
+	 *
+	 * @return string
+	 */
+	public function getType();
+
+	/**
+	 * The arguments for the binary operator
+	 *
+	 * One argument for the 'not' operator and two for 'and' and 'or'
+	 *
+	 * @return ISearchOperator[]
+	 */
+	public function getArguments();
+}
diff --git a/lib/public/Files/Search/ISearchComparison.php b/lib/public/Files/Search/ISearchComparison.php
new file mode 100644
index 00000000000..05342218616
--- /dev/null
+++ b/lib/public/Files/Search/ISearchComparison.php
@@ -0,0 +1,54 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\Files\Search;
+
+interface ISearchComparison extends ISearchOperator {
+	const COMPARE_EQUAL = 'eq';
+	const COMPARE_GREATER_THAN = 'gt';
+	const COMPARE_GREATER_THAN_EQUAL = 'gte';
+	const COMPARE_LESS_THAN = 'lt';
+	const COMPARE_LESS_THAN_EQUAL = 'lte';
+	const COMPARE_LIKE = 'like';
+
+	/**
+	 * Get the type of comparison, one of the ISearchComparison::COMPARE_* constants
+	 *
+	 * @return string
+	 */
+	public function getType();
+
+	/**
+	 * Get the name of the field to compare with
+	 *
+	 * i.e. 'size', 'name' or 'mimetype'
+	 *
+	 * @return string
+	 */
+	public function getField();
+
+	/**
+	 * Get the value to compare the field with
+	 *
+	 * @return string|integer|\DateTime
+	 */
+	public function getValue();
+}
diff --git a/lib/public/Files/Search/ISearchOperator.php b/lib/public/Files/Search/ISearchOperator.php
new file mode 100644
index 00000000000..fc1db57f4ca
--- /dev/null
+++ b/lib/public/Files/Search/ISearchOperator.php
@@ -0,0 +1,26 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\Files\Search;
+
+interface ISearchCondition {
+
+}
diff --git a/lib/public/Files/Search/ISearchOrder.php b/lib/public/Files/Search/ISearchOrder.php
new file mode 100644
index 00000000000..1abfd7506d5
--- /dev/null
+++ b/lib/public/Files/Search/ISearchOrder.php
@@ -0,0 +1,46 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\Files\Search;
+
+/**
+ * @since 12.0.0
+ */
+interface ISearchOrder {
+	const DIRECTION_ASCENDING = 'asc';
+	const DIRECTION_DESCENDING = 'desc';
+
+	/**
+	 * The direction to sort in, either ISearchOrder::DIRECTION_ASCENDING or ISearchOrder::DIRECTION_DESCENDING
+	 *
+	 * @return string
+	 * @since 12.0.0
+	 */
+	public function getDirection();
+
+	/**
+	 * The field to sort on
+	 *
+	 * @return string
+	 * @since 12.0.0
+	 */
+	public function getField();
+}
diff --git a/lib/public/Files/Search/ISearchQuery.php b/lib/public/Files/Search/ISearchQuery.php
new file mode 100644
index 00000000000..f9c07533a1e
--- /dev/null
+++ b/lib/public/Files/Search/ISearchQuery.php
@@ -0,0 +1,33 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCP\Files\Search;
+
+/**
+ * @since 12.0.0
+ */
+interface ISearchQuery {
+	/**
+	 * @return ISearchOperator
+	 * @since 12.0.0
+	 */
+	public function getSearchOperation();
+}
diff --git a/tests/lib/Files/Cache/QuerySearchHelperTest.php b/tests/lib/Files/Cache/QuerySearchHelperTest.php
new file mode 100644
index 00000000000..bdf3d79432f
--- /dev/null
+++ b/tests/lib/Files/Cache/QuerySearchHelperTest.php
@@ -0,0 +1,28 @@
+<?php
+/**
+ * @copyright Copyright (c) 2017 Robin Appelman <robin@icewind.nl>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace Test\Files\Cache;
+
+use Test\TestCase;
+
+class QuerySearchHelperTest extends TestCase {
+
+}