SearchHandler::transformOperator() - Code Metrics - Inspection of "test with php 7.2" - icewind1991/SearchDAV - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 95139b...282bde )

by Robin

created 2018-01-25 14:01 UTC

SearchHandler::transformOperator() B

↳ Parent: SearchHandler

Complexity

Conditions	5
Paths	1

Size

Total Lines	20
Code Lines	15

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	20
rs	8.8571
c	0
b	0
f	0
cc	5
eloc	15
nc	1
nop	2

<?php
/**
 * @copyright Copyright (c) 2017 Robin Appelman <[email protected]>
 *
 * @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 SearchDAV\DAV;

use Sabre\DAV\Exception\BadRequest;
use Sabre\DAV\PropFind;
use Sabre\DAV\Server;
use Sabre\HTTP\ResponseInterface;
use SearchDAV\Backend\ISearchBackend;
use SearchDAV\Backend\SearchPropertyDefinition;
use SearchDAV\Backend\SearchResult;
use SearchDAV\Query\Operator;
use SearchDAV\Query\Order;
use SearchDAV\Query\Query;
use SearchDAV\XML\BasicSearch;

class SearchHandler {
	/** @var ISearchBackend */
	private $searchBackend;

	/** @var PathHelper */
	private $pathHelper;

	/** @var Server */
	private $server;

	/**
	 * @param ISearchBackend $searchBackend
	 * @param PathHelper $pathHelper
	 * @param Server $server
	 */
	public function __construct(ISearchBackend $searchBackend, PathHelper $pathHelper, Server $server) {
		$this->searchBackend = $searchBackend;
		$this->pathHelper = $pathHelper;
		$this->server = $server;
	}

	public function handleSearchRequest($xml, ResponseInterface $response) {
		if (!isset($xml['{DAV:}basicsearch'])) {
			$response->setStatus(400);
			$response->setBody('Unexpected xml content for searchrequest, expected basicsearch');
			return false;
		}
		/** @var BasicSearch $query */
		$query = $xml['{DAV:}basicsearch'];
		if (!$query->where) {
			$response->setStatus(400);
			$response->setBody('Parse error: Missing {DAV:}where from {DAV:}basicsearch');
			return false;
		}
		if (!$query->select) {

			$response->setStatus(400);
			$response->setBody('Parse error: Missing {DAV:}select from {DAV:}basicsearch');
			return false;
		}
		$response->setStatus(207);
		$response->setHeader('Content-Type', 'application/xml; charset="utf-8"');
		$allProps = [];
		foreach ($query->from as $scope) {
			$scope->path = $this->pathHelper->getPathFromUri($scope->href);
			$props = $this->searchBackend->getPropertyDefinitionsForScope($scope->href, $scope->path);
			foreach ($props as $prop) {
				$allProps[$prop->name] = $prop;
			}
		}
		try {
			$results = $this->searchBackend->search($this->getQueryForXML($query, $allProps));
		} catch (BadRequest $e) {
			$response->setStatus(400);
			$response->setBody($e->getMessage());
			return false;
		}
		$data = $this->server->generateMultiStatus(iterator_to_array($this->getPropertiesIteratorResults($results, $query->select)), false);
		$response->setBody($data);
		return false;
	}

	/**
	 * @param BasicSearch $xml
	 * @param SearchPropertyDefinition[] $allProps
	 * @return Query
	 */
	private function getQueryForXML(BasicSearch $xml, array $allProps) {
		$orderBy = array_map(function (\SearchDAV\XML\Order $order) use ($allProps) {
			if (!isset($allProps[$order->property])) {
				throw new BadRequest('requested order by property is not a valid property for this scope');
			}
			$prop = $allProps[$order->property];
			if (!$prop->sortable) {
				throw new BadRequest('requested order by property is not sortable');
			}
			return new Order($prop, $order->order);
		}, $xml->orderBy);
		$select = array_map(function ($propName) use ($allProps) {
			if (!isset($allProps[$propName])) {
				throw new BadRequest('requested property is not a valid property for this scope');
			}
			$prop = $allProps[$propName];
			if (!$prop->selectable) {
				throw new BadRequest('requested property is not selectable');
			}
			return $prop;
		}, $xml->select);

		$where = $this->transformOperator($xml->where, $allProps);

		return new Query($select, $xml->from, $where, $orderBy, $xml->limit);
	}

	private function transformOperator(\SearchDAV\XML\Operator $operator, array $allProps) {
		$arguments = array_map(function ($argument) use ($allProps) {
			if (is_string($argument)) {
				if (!isset($allProps[$argument])) {
					throw new BadRequest('requested search property is not a valid property for this scope');
				}
				$prop = $allProps[$argument];
				if (!$prop->searchable) {
					throw new BadRequest('requested search property is not searchable');
				}
				return $prop;
			} else if ($argument instanceof \SearchDAV\XML\Operator) {
				return $this->transformOperator($argument, $allProps);
			} else {
				return $argument;
			}
		}, $operator->arguments);

		return new Operator($operator->type, $arguments);
	}

	/**
	 * Returns a list of properties for a given path
	 *
	 * The path that should be supplied should have the baseUrl stripped out
	 * The list of properties should be supplied in Clark notation. If the list is empty
	 * 'allprops' is assumed.
	 *
	 * If a depth of 1 is requested child elements will also be returned.
	 *
	 * @param SearchResult[] $results
	 * @param array $propertyNames
	 * @param int $depth
	 * @return \Iterator
	 */
	private function getPropertiesIteratorResults($results, $propertyNames = [], $depth = 0) {
		$propFindType = $propertyNames ? PropFind::NORMAL : PropFind::ALLPROPS;

		foreach ($results as $result) {
			$node = $result->node;
			$propFind = new PropFind($result->href, (array)$propertyNames, $depth, $propFindType);
			$r = $this->server->getPropertiesByNode($propFind, $node);
			if ($r) {
				$result = $propFind->getResultForMultiStatus();
				$result['href'] = $propFind->getPath();

				// WebDAV recommends adding a slash to the path, if the path is
				// a collection.
				// Furthermore, iCal also demands this to be the case for
				// principals. This is non-standard, but we support it.
				$resourceType = $this->server->getResourceTypeForNode($node);
				if (in_array('{DAV:}collection', $resourceType) || in_array('{DAV:}principal', $resourceType)) {
					$result['href'] .= '/';
				}
				yield $result;
			}
		}
	}
}


1			<?php
2			/**
3			* @copyright Copyright (c) 2017 Robin Appelman <[email protected]>
4			*
5			* @license GNU AGPL version 3 or any later version
6			*
7			* This program is free software: you can redistribute it and/or modify
8			* it under the terms of the GNU Affero General Public License as
9			* published by the Free Software Foundation, either version 3 of the
10			* License, or (at your option) any later version.
11			*
12			* This program is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU Affero General Public License for more details.
16			*
17			* You should have received a copy of the GNU Affero General Public License
18			* along with this program. If not, see <http://www.gnu.org/licenses/>.
19			*
20			*/
21
22			namespace SearchDAV\DAV;
23
24			use Sabre\DAV\Exception\BadRequest;
25			use Sabre\DAV\PropFind;
26			use Sabre\DAV\Server;
27			use Sabre\HTTP\ResponseInterface;
28			use SearchDAV\Backend\ISearchBackend;
29			use SearchDAV\Backend\SearchPropertyDefinition;
30			use SearchDAV\Backend\SearchResult;
31			use SearchDAV\Query\Operator;
32			use SearchDAV\Query\Order;
33			use SearchDAV\Query\Query;
34			use SearchDAV\XML\BasicSearch;
35
36			class SearchHandler {
37			/** @var ISearchBackend */
38			private $searchBackend;
39
40			/** @var PathHelper */
41			private $pathHelper;
42
43			/** @var Server */
44			private $server;
45
46			/**
47			* @param ISearchBackend $searchBackend
48			* @param PathHelper $pathHelper
49			* @param Server $server
50			*/
51			public function __construct(ISearchBackend $searchBackend, PathHelper $pathHelper, Server $server) {
52			$this->searchBackend = $searchBackend;
53			$this->pathHelper = $pathHelper;
54			$this->server = $server;
55			}
56
57			public function handleSearchRequest($xml, ResponseInterface $response) {
58			if (!isset($xml['{DAV:}basicsearch'])) {
59			$response->setStatus(400);
60			$response->setBody('Unexpected xml content for searchrequest, expected basicsearch');
61			return false;
62			}
63			/** @var BasicSearch $query */
64			$query = $xml['{DAV:}basicsearch'];
65			if (!$query->where) {
66			$response->setStatus(400);
67			$response->setBody('Parse error: Missing {DAV:}where from {DAV:}basicsearch');
68			return false;
69			}
70			if (!$query->select) {
			0 ignored issues – show Bug Best Practice introduced 2017-02-22 16:08 UTC by Report Bug Copy Issue Report The expression `$query->select` of type `string[]` is implicitly converted to a boolean; are you sure this is intended? If so, consider using `empty($expr)` instead to make it clear that you intend to check for an array without elements. This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent. Consider making the comparison explicit by using `empty(..)` or `! empty(...)` instead. Loading history...
71			$response->setStatus(400);
72			$response->setBody('Parse error: Missing {DAV:}select from {DAV:}basicsearch');
73			return false;
74			}
75			$response->setStatus(207);
76			$response->setHeader('Content-Type', 'application/xml; charset="utf-8"');
77			$allProps = [];
78			foreach ($query->from as $scope) {
79			$scope->path = $this->pathHelper->getPathFromUri($scope->href);
80			$props = $this->searchBackend->getPropertyDefinitionsForScope($scope->href, $scope->path);
81			foreach ($props as $prop) {
82			$allProps[$prop->name] = $prop;
83			}
84			}
85			try {
86			$results = $this->searchBackend->search($this->getQueryForXML($query, $allProps));
87			} catch (BadRequest $e) {
88			$response->setStatus(400);
89			$response->setBody($e->getMessage());
90			return false;
91			}
92			$data = $this->server->generateMultiStatus(iterator_to_array($this->getPropertiesIteratorResults($results, $query->select)), false);
93			$response->setBody($data);
94			return false;
95			}
96
97			/**
98			* @param BasicSearch $xml
99			* @param SearchPropertyDefinition[] $allProps
100			* @return Query
101			*/
102			private function getQueryForXML(BasicSearch $xml, array $allProps) {
103			$orderBy = array_map(function (\SearchDAV\XML\Order $order) use ($allProps) {
104			if (!isset($allProps[$order->property])) {
105			throw new BadRequest('requested order by property is not a valid property for this scope');
106			}
107			$prop = $allProps[$order->property];
108			if (!$prop->sortable) {
109			throw new BadRequest('requested order by property is not sortable');
110			}
111			return new Order($prop, $order->order);
112			}, $xml->orderBy);
113			$select = array_map(function ($propName) use ($allProps) {
114			if (!isset($allProps[$propName])) {
115			throw new BadRequest('requested property is not a valid property for this scope');
116			}
117			$prop = $allProps[$propName];
118			if (!$prop->selectable) {
119			throw new BadRequest('requested property is not selectable');
120			}
121			return $prop;
122			}, $xml->select);
123
124			$where = $this->transformOperator($xml->where, $allProps);
125
126			return new Query($select, $xml->from, $where, $orderBy, $xml->limit);
127			}
128
129			private function transformOperator(\SearchDAV\XML\Operator $operator, array $allProps) {
130			$arguments = array_map(function ($argument) use ($allProps) {
131			if (is_string($argument)) {
132			if (!isset($allProps[$argument])) {
133			throw new BadRequest('requested search property is not a valid property for this scope');
134			}
135			$prop = $allProps[$argument];
136			if (!$prop->searchable) {
137			throw new BadRequest('requested search property is not searchable');
138			}
139			return $prop;
140			} else if ($argument instanceof \SearchDAV\XML\Operator) {
141			return $this->transformOperator($argument, $allProps);
142			} else {
143			return $argument;
144			}
145			}, $operator->arguments);
146
147			return new Operator($operator->type, $arguments);
148			}
149
150			/**
151			* Returns a list of properties for a given path
152			*
153			* The path that should be supplied should have the baseUrl stripped out
154			* The list of properties should be supplied in Clark notation. If the list is empty
155			* 'allprops' is assumed.
156			*
157			* If a depth of 1 is requested child elements will also be returned.
158			*
159			* @param SearchResult[] $results
160			* @param array $propertyNames
161			* @param int $depth
162			* @return \Iterator
163			*/
164			private function getPropertiesIteratorResults($results, $propertyNames = [], $depth = 0) {
165			$propFindType = $propertyNames ? PropFind::NORMAL : PropFind::ALLPROPS;
166
167			foreach ($results as $result) {
168			$node = $result->node;
169			$propFind = new PropFind($result->href, (array)$propertyNames, $depth, $propFindType);
170			$r = $this->server->getPropertiesByNode($propFind, $node);
171			if ($r) {
172			$result = $propFind->getResultForMultiStatus();
173			$result['href'] = $propFind->getPath();
174
175			// WebDAV recommends adding a slash to the path, if the path is
176			// a collection.
177			// Furthermore, iCal also demands this to be the case for
178			// principals. This is non-standard, but we support it.
179			$resourceType = $this->server->getResourceTypeForNode($node);
180			if (in_array('{DAV:}collection', $resourceType) \|\| in_array('{DAV:}principal', $resourceType)) {
181			$result['href'] .= '/';
182			}
183			yield $result;
184			}
185			}
186			}
187			}
188

icewind1991 / SearchDAV

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SearchHandler::transformOperator() B

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