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PhabricatorElasticSearchEngine.php
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			<?php

			final class PhabricatorElasticSearchEngine extends PhabricatorSearchEngine {

			private $uri;
			private $index;
			private $timeout;

			public function getEngineIdentifier() {
			return 'elasticsearch';
			}

			public function getEnginePriority() {
			return 10;
			}

			public function isEnabled() {
			return (bool)PhabricatorEnv::getEnvConfig('search.elastic.host');
			}

			public function setURI($uri) {
			$this->uri = $uri;
			return $this;
			}

			public function setIndex($index) {
			$this->index = $index;
			return $this;
			}

			public function setTimeout($timeout) {
			$this->timeout = $timeout;
			return $this;
			}

			public function getURI() {
			return $this->uri;
			}

			public function getIndex() {
			return $this->index;
			}

			public function getTimeout() {
			return $this->timeout;
			}

			public function reindexAbstractDocument(
			PhabricatorSearchAbstractDocument $doc) {

			$type = $doc->getDocumentType();
			$phid = $doc->getPHID();
			$handle = id(new PhabricatorHandleQuery())
			->setViewer(PhabricatorUser::getOmnipotentUser())
			->withPHIDs(array($phid))
			->executeOne();

			// URL is not used internally but it can be useful externally.
			$spec = array(
			'title' => $doc->getDocumentTitle(),
			'url' => PhabricatorEnv::getProductionURI($handle->getURI()),
			'dateCreated' => $doc->getDocumentCreated(),
			'_timestamp' => $doc->getDocumentModified(),
			'field' => array(),
			'relationship' => array(),
			);

			foreach ($doc->getFieldData() as $field) {
			$spec['field'][] = array_combine(array('type', 'corpus', 'aux'), $field);
			}

			foreach ($doc->getRelationshipData() as $relationship) {
			list($rtype, $to_phid, $to_type, $time) = $relationship;
			$spec['relationship'][$rtype][] = array(
			'phid' => $to_phid,
			'phidType' => $to_type,
			'when' => $time,
			);
			}

			$this->executeRequest("/{$type}/{$phid}/", $spec, 'PUT');
			}

			public function reconstructDocument($phid) {
			$type = phid_get_type($phid);

			$response = $this->executeRequest("/{$type}/{$phid}", array());

			if (empty($response['exists'])) {
			return null;
			}

			$hit = $response['_source'];

			$doc = new PhabricatorSearchAbstractDocument();
			$doc->setPHID($phid);
			$doc->setDocumentType($response['_type']);
			$doc->setDocumentTitle($hit['title']);
			$doc->setDocumentCreated($hit['dateCreated']);
			$doc->setDocumentModified($hit['_timestamp']);

			foreach ($hit['field'] as $fdef) {
			$doc->addField($fdef['type'], $fdef['corpus'], $fdef['aux']);
			}

			foreach ($hit['relationship'] as $rtype => $rships) {
			foreach ($rships as $rship) {
			$doc->addRelationship(
			$rtype,
			$rship['phid'],
			$rship['phidType'],
			$rship['when']);
			}
			}

			return $doc;
			}

			private function buildSpec(PhabricatorSavedQuery $query) {
			$spec = array();
			$filter = array();
			$title_spec = array();

			if (strlen($query->getParameter('query'))) {
			$spec[] = array(
			'simple_query_string' => array(
			'query' => $query->getParameter('query'),
			'fields' => array('field.corpus'),
			),
			);

			$title_spec = array(
			'simple_query_string' => array(
			'query' => $query->getParameter('query'),
			'fields' => array('title'),
			),
			);
			}

			$exclude = $query->getParameter('exclude');
			if ($exclude) {
			$filter[] = array(
			'not' => array(
			'ids' => array(
			'values' => array($exclude),
			),
			),
			);
			}

			$relationship_map = array(
			PhabricatorSearchRelationship::RELATIONSHIP_AUTHOR =>
			$query->getParameter('authorPHIDs', array()),
			PhabricatorSearchRelationship::RELATIONSHIP_SUBSCRIBER =>
			$query->getParameter('subscriberPHIDs', array()),
			PhabricatorSearchRelationship::RELATIONSHIP_PROJECT =>
			$query->getParameter('projectPHIDs', array()),
			PhabricatorSearchRelationship::RELATIONSHIP_REPOSITORY =>
			$query->getParameter('repositoryPHIDs', array()),
			);

			$statuses = $query->getParameter('statuses', array());
			$statuses = array_fuse($statuses);

			$rel_open = PhabricatorSearchRelationship::RELATIONSHIP_OPEN;
			$rel_closed = PhabricatorSearchRelationship::RELATIONSHIP_CLOSED;
			$rel_unowned = PhabricatorSearchRelationship::RELATIONSHIP_UNOWNED;

			$include_open = !empty($statuses[$rel_open]);
			$include_closed = !empty($statuses[$rel_closed]);

			if ($include_open && !$include_closed) {
			$relationship_map[$rel_open] = true;
			} else if (!$include_open && $include_closed) {
			$relationship_map[$rel_closed] = true;
			}

			if ($query->getParameter('withUnowned')) {
			$relationship_map[$rel_unowned] = true;
			}

			$rel_owner = PhabricatorSearchRelationship::RELATIONSHIP_OWNER;
			if ($query->getParameter('withAnyOwner')) {
			$relationship_map[$rel_owner] = true;
			} else {
			$owner_phids = $query->getParameter('ownerPHIDs', array());
			$relationship_map[$rel_owner] = $owner_phids;
			}

			foreach ($relationship_map as $field => $param) {
			if (is_array($param) && $param) {
			$should = array();
			foreach ($param as $val) {
			$should[] = array(
			'match' => array(
			"relationship.{$field}.phid" => array(
			'query' => $val,
			'type' => 'phrase',
			),
			),
			);
			}
			// We couldn't solve it by minimum_number_should_match because it can
			// match multiple owners without matching author.
			$spec[] = array('bool' => array('should' => $should));
			} else if ($param) {
			$filter[] = array(
			'exists' => array(
			'field' => "relationship.{$field}.phid",
			),
			);
			}
			}

			if ($spec) {
			$spec = array('query' => array('bool' => array('must' => $spec)));
			if ($title_spec) {
			$spec['query']['bool']['should'] = $title_spec;
			}
			}

			if ($filter) {
			$filter = array('filter' => array('and' => $filter));
			if (!$spec) {
			$spec = array('query' => array('match_all' => new stdClass()));
			}
			$spec = array(
			'query' => array(
			'filtered' => $spec + $filter,
			),
			);
			}

			if (!$query->getParameter('query')) {
			$spec['sort'] = array(
			array('dateCreated' => 'desc'),
			);
			}

			$spec['from'] = (int)$query->getParameter('offset', 0);
			$spec['size'] = (int)$query->getParameter('limit', 25);

			return $spec;
			}

			public function executeSearch(PhabricatorSavedQuery $query) {
			$types = $query->getParameter('types');
			if (!$types) {
			$types = array_keys(
			PhabricatorSearchApplicationSearchEngine::getIndexableDocumentTypes());
			}

			// Don't use '/_search' for the case that there is something
			// else in the index (for example if 'phabricator' is only an alias to
			// some bigger index). Use '/$types/_search' instead.
			$uri = '/'.implode(',', $types).'/_search';

			try {
			$response = $this->executeRequest($uri, $this->buildSpec($query));
			} catch (HTTPFutureHTTPResponseStatus $ex) {
			// elasticsearch probably uses Lucene query syntax:
			// http://lucene.apache.org/core/3_6_1/queryparsersyntax.html
			// Try literal search if operator search fails.
			if (!strlen($query->getParameter('query'))) {
			throw $ex;
			}
			$query = clone $query;
			$query->setParameter(
			'query',
			addcslashes(
			$query->getParameter('query'), '+-&\|!(){}[]^"~*?:\\'));
			$response = $this->executeRequest($uri, $this->buildSpec($query));
			}

			$phids = ipull($response['hits']['hits'], '_id');
			return $phids;
			}

			public function indexExists() {
			try {
			return (bool)$this->executeRequest('/_status/', array());
			} catch (HTTPFutureHTTPResponseStatus $e) {
			if ($e->getStatusCode() == 404) {
			return false;
			}
			throw $e;
			}
			}

			private function getIndexConfiguration() {
			$data = array();
			$data['settings'] = array(
			'index' => array(
			'auto_expand_replicas' => '0-2',
			'analysis' => array(
			'filter' => array(
			'trigrams_filter' => array(
			'min_gram' => 3,
			'type' => 'ngram',
			'max_gram' => 3,
			),
			),
			'analyzer' => array(
			'custom_trigrams' => array(
			'type' => 'custom',
			'filter' => array(
			'lowercase',
			'kstem',
			'trigrams_filter',
			),
			'tokenizer' => 'standard',
			),
			),
			),
			),
			);

			$types = array_keys(
			PhabricatorSearchApplicationSearchEngine::getIndexableDocumentTypes());
			foreach ($types as $type) {
			// Use the custom trigram analyzer for the corpus of text
			$data['mappings'][$type]['properties']['field']['properties']['corpus'] =
			array( 'type' => 'string', 'analyzer' => 'custom_trigrams' );

			// Ensure we have dateCreated since the default query requires it
			$data['mappings'][$type]['properties']['dateCreated']['type'] = 'string';
			}

			return $data;
			}

			public function indexIsSane() {
			if (!$this->indexExists()) {
			return false;
			}

			$cur_mapping = $this->executeRequest('/_mapping/', array());
			$cur_settings = $this->executeRequest('/_settings/', array());
			$actual = array_merge($cur_settings[$this->index],
			$cur_mapping[$this->index]);

			return $this->check($actual, $this->getIndexConfiguration());
			}

			/**
			* Recursively check if two Elasticsearch configuration arrays are equal
			*
			* @param $actual
			* @param $required array
			* @return bool
			*/
			private function check($actual, $required) {
			foreach ($required as $key => $value) {
			if (!array_key_exists($key, $actual)) {
			if ($key === '_all') {
			// The _all field never comes back so we just have to assume it
			// is set correctly.
			continue;
			}
			return false;
			}
			if (is_array($value)) {
			if (!is_array($actual[$key])) {
			return false;
			}
			if (!$this->check($actual[$key], $value)) {
			return false;
			}
			continue;
			}

			$actual[$key] = self::normalizeConfigValue($actual[$key]);
			$value = self::normalizeConfigValue($value);
			if ($actual[$key] != $value) {
			return false;
			}
			}
			return true;
			}

			/**
			* Normalize a config value for comparison. Elasticsearch accepts all kinds
			* of config values but it tends to throw back 'true' for true and 'false' for
			* false so we normalize everything. Sometimes, oddly, it'll throw back false
			* for false....
			*
			* @param mixed $value config value
			* @return mixed value normalized
			*/
			private static function normalizeConfigValue($value) {
			if ($value === true) {
			return 'true';
			} else if ($value === false) {
			return 'false';
			}
			return $value;
			}

			public function initIndex() {
			if ($this->indexExists()) {
			$this->executeRequest('/', array(), 'DELETE');
			}
			$data = $this->getIndexConfiguration();
			$this->executeRequest('/', $data, 'PUT');
			}

			private function executeRequest($path, array $data, $method = 'GET') {
			$uri = new PhutilURI($this->uri);
			$uri->setPath($this->index);
			$uri->appendPath($path);
			$data = json_encode($data);

			$future = new HTTPSFuture($uri, $data);
			if ($method != 'GET') {
			$future->setMethod($method);
			}
			if ($this->getTimeout()) {
			$future->setTimeout($this->getTimeout());
			}
			list($body) = $future->resolvex();

			if ($method != 'GET') {
			return null;
			}

			try {
			return phutil_json_decode($body);
			} catch (PhutilJSONParserException $ex) {
			throw new PhutilProxyException(
			pht('ElasticSearch server returned invalid JSON!'),
			$ex);
			}
			}

			}

phab/src/applications/search/engine/PhabricatorElasticSearchEngine.php16a8ed72bddafeature/testing

PhabricatorElasticSearchEngine.phpView Options

phab/src/applications/search/engine/PhabricatorElasticSearchEngine.php
16a8ed72bddafeature/testing

PhabricatorElasticSearchEngine.php
View Options