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add Nextcloud Search extension to CalDAV 

Signed-off-by: Georg Ehrke <developer@georgehrke.com>
tags/v12.0.0beta1
Georg Ehrke 7 years ago
parent
d01832ff64
commit
57b543a918
No account linked to committer's email address
14 changed files with 1064 additions and 1 deletions
Split View Show Diff Stats
  1. 72
    0
      apps/dav/appinfo/database.xml
  2. 1
    1
      apps/dav/appinfo/info.xml
  3. 278
    0
      apps/dav/lib/CalDAV/CalDavBackend.php
  4. 10
    0
      apps/dav/lib/CalDAV/CalendarHome.php
  5. 102
    0
      apps/dav/lib/CalDAV/Search/CalendarSearchValidator.php
  6. 159
    0
      apps/dav/lib/CalDAV/Search/SearchPlugin.php
  7. 47
    0
      apps/dav/lib/CalDAV/Search/Xml/Filter/CompFilter.php
  8. 43
    0
      apps/dav/lib/CalDAV/Search/Xml/Filter/LimitFilter.php
  9. 43
    0
      apps/dav/lib/CalDAV/Search/Xml/Filter/OffsetFilter.php
  10. 55
    0
      apps/dav/lib/CalDAV/Search/Xml/Filter/ParamFilter.php
  11. 47
    0
      apps/dav/lib/CalDAV/Search/Xml/Filter/PropFilter.php
  12. 43
    0
      apps/dav/lib/CalDAV/Search/Xml/Filter/SearchTermFilter.php
  13. 163
    0
      apps/dav/lib/CalDAV/Search/Xml/Request/CalendarSearchReport.php
  14. 1
    0
      apps/dav/lib/Server.php

+ 72
- 0
apps/dav/appinfo/database.xml View File

@@ -670,6 +670,78 @@ CREATE TABLE calendarobjects (
</declaration>
</table>

<table>
<name>*dbprefix*calendarobjects_properties</name>
<declaration>
<field>
<name>id</name>
<type>integer</type>
<default>0</default>
<notnull>true</notnull>
<autoincrement>1</autoincrement>
<unsigned>true</unsigned>
<length>11</length>
</field>
<field>
<name>calendarid</name>
<type>integer</type>
<default></default>
<notnull>true</notnull>
<length>11</length>
</field>
<field>
<name>objectid</name>
<type>integer</type>
<default></default>
<notnull>true</notnull>
<unsigned>true</unsigned>
<length>11</length>
</field>
<field>
<name>name</name>
<type>text</type>
<default></default>
<notnull>false</notnull>
<length>64</length>
</field>
<field>
<name>parameter</name>
<type>text</type>
<default></default>
<notnull>false</notnull>
<length>64</length>
</field>
<field>
<name>value</name>
<type>text</type>
<default></default>
<notnull>false</notnull>
<length>255</length>
</field>
<index>
<name>calendarobject_index</name>
<field>
<name>objectid</name>
<sorting>ascending</sorting>
</field>
</index>
<index>
<name>calendarobject_name_index</name>
<field>
<name>name</name>
<sorting>ascending</sorting>
</field>
</index>
<index>
<name>calendarobject_value_index</name>
<field>
<name>value</name>
<sorting>ascending</sorting>
</field>
</index>
</declaration>
</table>

<table>
<name>*dbprefix*dav_shares</name>
<declaration>

+ 1
- 1
apps/dav/appinfo/info.xml View File

@@ -5,7 +5,7 @@
<description>WebDAV endpoint</description>
<licence>AGPL</licence>
<author>owncloud.org</author>
<version>1.2.0</version>
<version>1.3.0</version>
<default_enable/>
<types>
<filesystem/>

+ 278
- 0
apps/dav/lib/CalDAV/CalDavBackend.php View File

@@ -44,6 +44,7 @@ use Sabre\DAV\Exception\Forbidden;
use Sabre\DAV\Exception\NotFound;
use Sabre\DAV\PropPatch;
use Sabre\HTTP\URLUtil;
use Sabre\VObject\Component\VCalendar;
use Sabre\VObject\DateTimeParser;
use Sabre\VObject\Reader;
use Sabre\VObject\Recur\EventIterator;
@@ -108,6 +109,17 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
'{http://calendarserver.org/ns/}subscribed-strip-attachments' => 'stripattachments',
];

/** @var array properties to index */
public static $indexProperties = ['CATEGORIES', 'COMMENT', 'DESCRIPTION',
'LOCATION', 'RESOURCES', 'STATUS', 'SUMMARY', 'ATTENDEE', 'CONTACT',
'ORGANIZER'];

/** @var array parameters to index */
public static $indexParameters = [
'ATTENDEE' => ['CN'],
'ORGANIZER' => ['CN'],
];

/**
* @var string[] Map of uid => display name
*/
@@ -134,6 +146,9 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
/** @var bool */
private $legacyEndpoint;

/** @var string */
private $dbObjectPropertiesTable = 'calendarobjects_properties';

/**
* CalDavBackend constructor.
*
@@ -746,6 +761,11 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
$stmt->execute([$calendarId]);

$this->sharingBackend->deleteAllShares($calendarId);

$query = $this->db->getQueryBuilder();
$query->delete($this->dbObjectPropertiesTable)
->where($query->expr()->eq('calendarid', $query->createNamedParameter($calendarId)))
->execute();
}

/**
@@ -940,6 +960,8 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
])
->execute();

$this->updateProperties($calendarId, $objectUri, $calendarData);

$this->dispatcher->dispatch('\OCA\DAV\CalDAV\CalDavBackend::createCalendarObject', new GenericEvent(
'\OCA\DAV\CalDAV\CalDavBackend::createCalendarObject',
[
@@ -990,6 +1012,8 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
->andWhere($query->expr()->eq('uri', $query->createNamedParameter($objectUri)))
->execute();

$this->updateProperties($calendarId, $objectUri, $calendarData);

$data = $this->getCalendarObject($calendarId, $objectUri);
if (is_array($data)) {
$this->dispatcher->dispatch('\OCA\DAV\CalDAV\CalDavBackend::updateCalendarObject', new GenericEvent(
@@ -1050,6 +1074,8 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
$stmt = $this->db->prepare('DELETE FROM `*PREFIX*calendarobjects` WHERE `calendarid` = ? AND `uri` = ?');
$stmt->execute([$calendarId, $objectUri]);

$this->purgeProperties($calendarId, $data['id']);

$this->addChange($calendarId, $objectUri, 3);
}

@@ -1167,6 +1193,139 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
return $result;
}

/**
* custom Nextcloud search extension for CalDAV
*
* @param string $principalUri
* @param array $filters
* @param integer|null $limit
* @param integer|null $offset
* @return array
*/
public function calendarSearch($principalUri, array $filters, $limit=null, $offset=null) {
$calendars = $this->getCalendarsForUser($principalUri);
$ownCalendars = [];
$sharedCalendars = [];

$uriMapper = [];

foreach($calendars as $calendar) {
if ($calendar['{http://owncloud.org/ns}owner-principal'] === $principalUri) {
$ownCalendars[] = $calendar['id'];
} else {
$sharedCalendars[] = $calendar['id'];
}
$uriMapper[$calendar['id']] = $calendar['uri'];
}
if (count($ownCalendars) === 0 && count($sharedCalendars) === 0) {
return [];
}

$query = $this->db->getQueryBuilder();
// Calendar id expressions
$calendarExpressions = [];
foreach($ownCalendars as $id) {
$calendarExpressions[] = $query->expr()
->eq('c.calendarid', $query->createNamedParameter($id));
}
foreach($sharedCalendars as $id) {
$calendarExpressions[] = $query->expr()->andX(
$query->expr()->eq('c.calendarid',
$query->createNamedParameter($id)),
$query->expr()->eq('c.classification',
$query->createNamedParameter(self::CLASSIFICATION_PUBLIC))
);
}

if (count($calendarExpressions) === 1) {
$calExpr = $calendarExpressions[0];
} else {
$calExpr = call_user_func_array([$query->expr(), 'orX'], $calendarExpressions);
}

// Component expressions
$compExpressions = [];
foreach($filters['comps'] as $comp) {
$compExpressions[] = $query->expr()
->eq('c.componenttype', $query->createNamedParameter($comp));
}

if (count($compExpressions) === 1) {
$compExpr = $compExpressions[0];
} else {
$compExpr = call_user_func_array([$query->expr(), 'orX'], $compExpressions);
}

$propExpressions = [];
foreach($filters['props'] as $prop) {
$propExpressions[] = $query->expr()->andX(
$query->expr()->eq('i.name', $query->createNamedParameter($prop)),
$query->expr()->isNull('i.parameter')
);
}

if (count($propExpressions) === 1) {
$propExpr = $propExpressions[0];
} else {
$propExpr = call_user_func_array([$query->expr(), 'orX'], $propExpressions);
}

$paramExpressions = [];
foreach($filters['params'] as $param) {
$paramExpressions[] = $query->expr()->andX(
$query->expr()->eq('i.name', $query->createNamedParameter($param['property'])),
$query->expr()->eq('i.parameter', $query->createNamedParameter($param['parameter']))
);
}

if (count($paramExpressions) === 1) {
$paramExpr = $paramExpressions[0];
} else {
$paramExpr = call_user_func_array([$query->expr(), 'orX'], $paramExpressions);
}

$offset = 0;

$query->select(['c.calendarid', 'c.uri'])
->from('calendarobjects_properties', 'i')
->join('i', 'calendarobjects', 'c', $query->expr()->eq('i.objectid', 'c.id'))
->where($calExpr)
->andWhere($compExpr)
->andWhere($query->expr()->orX($propExpr, $paramExpr))
->andWhere($query->expr()->like('i.value', $query->createNamedParameter($filters['search-term'])))
->setFirstResult($offset)
->setMaxResults($limit);

$stmt = $query->execute();

$result = [];
while($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
$result[] = $uriMapper[$row['calendarid']] . '/' . $row['uri'];
}

return $result;
}

/**
* This method validates if a filter (as passed to calendarSearch) matches
* the given object.
*
* @param array $object
* @param array $filters
* @return bool
*/
protected function validateFilterForCalendarSearch(array $object, array $filters) {
$vObject = Reader::read($object['calendardata']);

$validator = new Search\CalendarSearchValidator();
$result = $validator->validate($vObject, $filters);

// Destroy circular references so PHP will GC the object.
$vObject->destroy();

return $result;
}

/**
* Searches through all of a users calendars and calendar objects to find
* an object with a specific UID.
@@ -1820,6 +1979,125 @@ class CalDavBackend extends AbstractBackend implements SyncSupport, Subscription
return $this->sharingBackend->applyShareAcl($resourceId, $acl);
}



/**
* update properties table
*
* @param int $calendarId
* @param string $objectUri
* @param string $calendarData
*/
protected function updateProperties($calendarId, $objectUri, $calendarData) {
$objectId = $this->getCalendarObjectId($calendarId, $objectUri);
$vCalendar = $this->readCalendarData($calendarData);

$this->purgeProperties($calendarId, $objectId);

$query = $this->db->getQueryBuilder();
$query->insert($this->dbObjectPropertiesTable)
->values(
[
'calendarid' => $query->createNamedParameter($calendarId),
'objectid' => $query->createNamedParameter($objectId),
'name' => $query->createParameter('name'),
'parameter' => $query->createParameter('parameter'),
'value' => $query->createParameter('value'),
]
);

$indexComponents = ['VEVENT', 'VJOURNAL', 'VTODO'];
foreach ($vCalendar->getComponents() as $component) {
if (!in_array($component->name, $indexComponents)) {
continue;
}

foreach ($component->children() as $property) {
if (in_array($property->name, self::$indexProperties)) {
$value = $property->getValue();
// is this a shitty db?
if ($this->db->supports4ByteText()) {
$value = preg_replace('/[\x{10000}-\x{10FFFF}]/u', "\xEF\xBF\xBD", $value);
}
$value = substr($value, 0, 254);

$query->setParameter('name', $property->name);
$query->setParameter('parameter', null);
$query->setParameter('value', $value);
$query->execute();
}

if (in_array($property->name, array_keys(self::$indexParameters))) {
$parameters = $property->parameters();
$indexedParametersForProperty = self::$indexParameters[$property->name];

foreach ($parameters as $key => $value) {
if (in_array($key, $indexedParametersForProperty)) {
// is this a shitty db?
if ($this->db->supports4ByteText()) {
$value = preg_replace('/[\x{10000}-\x{10FFFF}]/u', "\xEF\xBF\xBD", $value);
}
$value = substr($value, 0, 254);

$query->setParameter('name', $property->name);
$query->setParameter('parameter', substr($key, 0, 254));
$query->setParameter('value', substr($value, 0, 254));
$query->execute();
}
}
}
}
}
}

/**
* read VCalendar data into a VCalendar object
*
* @param string $objectData
* @return VCalendar
*/
protected function readCalendarData($objectData) {
return Reader::read($objectData);
}

/**
* delete all properties from a given calendar object
*
* @param int $calendarId
* @param int $objectId
*/
protected function purgeProperties($calendarId, $objectId) {
$query = $this->db->getQueryBuilder();
$query->delete($this->dbObjectPropertiesTable)
->where($query->expr()->eq('objectid', $query->createNamedParameter($objectId)))
->andWhere($query->expr()->eq('calendarid', $query->createNamedParameter($calendarId)));
$query->execute();
}

/**
* get ID from a given calendar object
*
* @param int $calendarId
* @param string $uri
* @return int
*/
protected function getCalendarObjectId($calendarId, $uri) {
$query = $this->db->getQueryBuilder();
$query->select('id')->from('calendarobjects')
->where($query->expr()->eq('uri', $query->createNamedParameter($uri)))
->andWhere($query->expr()->eq('calendarid', $query->createNamedParameter($calendarId)));

$result = $query->execute();
$objectIds = $result->fetch();
$result->closeCursor();

if (!isset($objectIds['id'])) {
throw new \InvalidArgumentException('Calendarobject does not exists: ' . $uri);
}

return (int)$objectIds['id'];
}

private function convertPrincipal($principalUri, $toV2) {
if ($this->principalBackend->getPrincipalPrefix() === 'principals') {
list(, $name) = URLUtil::splitPath($principalUri);

+ 10
- 0
apps/dav/lib/CalDAV/CalendarHome.php View File

@@ -111,4 +111,14 @@ class CalendarHome extends \Sabre\CalDAV\CalendarHome {

throw new NotFound('Node with name \'' . $name . '\' could not be found');
}

/**
* @param array $filters
* @param integer|null $limit
* @param integer|null $offset
*/
function calendarSearch(array $filters, $limit=null, $offset=null) {
$principalUri = $this->principalInfo['uri'];
return $this->caldavBackend->calendarSearch($principalUri, $filters, $limit, $offset);
}
}

+ 102
- 0
apps/dav/lib/CalDAV/Search/CalendarSearchValidator.php View File

@@ -0,0 +1,102 @@
<?php
/**
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @copyright Copyright (c) 2017 Georg Ehrke <oc.list@georgehrke.com>
* @license GNU AGPL version 3 or any later version
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\DAV\CalDAV\Search;

use Sabre\VObject;

class CalendarSearchValidator {

/**
* Verify if a list of filters applies to the calendar data object
*
* The list of filters must be formatted as parsed by Xml\Request\CalendarSearchReport
*
* @param VObject\Component\VCalendar $vObject
* @param array $filters
* @return bool
*/
function validate(VObject\Component\VCalendar $vObject, array $filters) {
$comps = $vObject->getComponents();
$filters['comps'][] = 'VTIMEZONE';

$matches = false;
foreach($comps as $comp) {
if ($comp->name === 'VTIMEZONE') {
continue;
}
if ($matches) {
break;
}

// check comps
if (!in_array($comp->name, $filters['comps'])) {
return false;
}

$children = $comp->children();
foreach($children as $child) {
if (!($child instanceof VObject\Property)) {
continue;
}
if ($matches) {
break;
}

foreach($filters['props'] as $prop) {
if ($child->name !== $prop) {
continue;
}

$value = $child->getValue();
if (substr_count($value, $filters['search-term'])) {
$matches = true;
break;
}
}

foreach($filters['params'] as $param) {
$propName = $param['property'];
$paramName = $param['parameter'];

if ($child->name !== $propName) {
continue;
}
if ($matches) {
break;
}

$parameters = $child->parameters();
foreach ($parameters as $key => $value) {
if ($paramName !== $key) {
continue;
}
if (substr_count($value, $filters['search-term'])) {
$matches = true;
break;
}
}
}
}
}

return $matches;
}
}

+ 159
- 0
apps/dav/lib/CalDAV/Search/SearchPlugin.php View File

@@ -0,0 +1,159 @@
<?php
/**
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @copyright Copyright (c) 2017 Georg Ehrke <oc.list@georgehrke.com>
* @license GNU AGPL version 3 or any later version
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\DAV\CalDAV\Search;

use Sabre\DAV\Server;
use Sabre\DAV\ServerPlugin;
use OCA\DAV\CalDAV\CalendarHome;

class SearchPlugin extends ServerPlugin {
const NS_Nextcloud = 'http://nextcloud.com/ns';

/**
* Reference to SabreDAV server object.
*
* @var \Sabre\DAV\Server
*/
protected $server;

/**
* This method should return a list of server-features.
*
* This is for example 'versioning' and is added to the DAV: header
* in an OPTIONS response.
*
* @return string[]
*/
public function getFeatures() {
// May have to be changed to be detected
return ['nc-calendar-search'];
}

/**
* Returns a plugin name.
*
* Using this name other plugins will be able to access other plugins
* using Sabre\DAV\Server::getPlugin
*
* @return string
*/
public function getPluginName() {
return 'nc-calendar-search';
}

/**
* This initializes the plugin.
*
* This function is called by Sabre\DAV\Server, after
* addPlugin is called.
*
* This method should set up the required event subscriptions.
*
* @param Server $server
*/
public function initialize(Server $server) {
$this->server = $server;

$server->on('report', [$this, 'report']);

$server->xml->elementMap['{' . self::NS_Nextcloud . '}calendar-search'] =
'OCA\\DAV\\CalDAV\\Search\\Xml\\Request\\CalendarSearchReport';
}

/**
* This functions handles REPORT requests specific to CalDAV
*
* @param string $reportName
* @param mixed $report
* @param mixed $path
* @return bool
*/
function report($reportName, $report, $path) {
switch ($reportName) {
case '{' . self::NS_Nextcloud . '}calendar-search' :
$this->server->transactionType = 'report-nc-calendar-search';
$this->calendarSearch($report);
return false;
}
}

/**
* Returns a list of reports this plugin supports.
*
* This will be used in the {DAV:}supported-report-set property.
* Note that you still need to subscribe to the 'report' event to actually
* implement them
*
* @param string $uri
* @return array
*/
public function getSupportedReportSet($uri) {
$node = $this->server->tree->getNodeForPath($uri);

$reports = [];
if ($node instanceof CalendarHome) {
$reports[] = '{' . self::NS_Nextcloud . '}calendar-search';
}

return $reports;
}

/**
* This function handles the calendar-query REPORT
*
* This report is used by clients to request calendar objects based on
* complex conditions.
*
* @param Xml\Request\CalendarSearchReport $report
* @return void
*/
private function calendarSearch($report) {
$node = $this->server->tree->getNodeForPath($this->server->getRequestUri());
$depth = $this->server->getHTTPDepth(0);

// The default result is an empty array
$result = [];

// If we're dealing with the calendar home, the calendar home itself is
// responsible for the calendar-query
if ($node instanceof CalendarHome && $depth == 2) {

$nodePaths = $node->calendarSearch($report->filters, $report->limit, $report->offset);

foreach ($nodePaths as $path) {
list($properties) = $this->server->getPropertiesForPath(
$this->server->getRequestUri() . '/' . $path,
$report->properties);
$result[] = $properties;
}
}

$prefer = $this->server->getHTTPPrefer();

$this->server->httpResponse->setStatus(207);
$this->server->httpResponse->setHeader('Content-Type',
'application/xml; charset=utf-8');
$this->server->httpResponse->setHeader('Vary', 'Brief,Prefer');
$this->server->httpResponse->setBody(
$this->server->generateMultiStatus($result,
$prefer['return'] === 'minimal'));
}
}

+ 47
- 0
apps/dav/lib/CalDAV/Search/Xml/Filter/CompFilter.php View File

@@ -0,0 +1,47 @@
<?php
/**
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @copyright Copyright (c) 2017 Georg Ehrke <oc.list@georgehrke.com>
* @license GNU AGPL version 3 or any later version
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\DAV\CalDAV\Search\Xml\Filter;

use Sabre\DAV\Exception\BadRequest;
use Sabre\Xml\Reader;
use Sabre\Xml\XmlDeserializable;
use OCA\DAV\CalDAV\Search\SearchPlugin;

class CompFilter implements XmlDeserializable {

/**
* @param Reader $reader
* @throws BadRequest
* @return string
*/
static function xmlDeserialize(Reader $reader) {
$att = $reader->parseAttributes();
$componentName = $att['name'];

$reader->parseInnerTree();

if (!is_string($componentName)) {
throw new BadRequest('The {' . SearchPlugin::NS_Nextcloud . '}comp-filter requires a valid name attribute');
}

return $componentName;
}
}

+ 43
- 0
apps/dav/lib/CalDAV/Search/Xml/Filter/LimitFilter.php View File

@@ -0,0 +1,43 @@
<?php
/**
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @copyright Copyright (c) 2017 Georg Ehrke <oc.list@georgehrke.com>
* @license GNU AGPL version 3 or any later version
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\DAV\CalDAV\Search\Xml\Filter;

use Sabre\DAV\Exception\BadRequest;
use Sabre\Xml\Reader;
use Sabre\Xml\XmlDeserializable;
use OCA\DAV\CalDAV\Search\SearchPlugin;

class LimitFilter implements XmlDeserializable {

/**
* @param Reader $reader
* @throws BadRequest
* @return int
*/
static function xmlDeserialize(Reader $reader) {
$value = $reader->parseInnerTree();
if (!is_int($value) && !is_string($value)) {
throw new BadRequest('The {' . SearchPlugin::NS_Nextcloud . '}limit has illegal value');
}

return intval($value);
}
}

+ 43
- 0
apps/dav/lib/CalDAV/Search/Xml/Filter/OffsetFilter.php View File

@@ -0,0 +1,43 @@
<?php
/**
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @copyright Copyright (c) 2017 Georg Ehrke <oc.list@georgehrke.com>
* @license GNU AGPL version 3 or any later version
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\DAV\CalDAV\Search\Xml\Filter;

use Sabre\DAV\Exception\BadRequest;
use Sabre\Xml\Reader;
use Sabre\Xml\XmlDeserializable;
use OCA\DAV\CalDAV\Search\SearchPlugin;

class OffsetFilter implements XmlDeserializable {

/**
* @param Reader $reader
* @throws BadRequest
* @return int
*/
static function xmlDeserialize(Reader $reader) {
$value = $reader->parseInnerTree();
if (!is_int($value) && !is_string($value)) {
throw new BadRequest('The {' . SearchPlugin::NS_Nextcloud . '}offset has illegal value');
}

return intval($value);
}
}

+ 55
- 0
apps/dav/lib/CalDAV/Search/Xml/Filter/ParamFilter.php View File

@@ -0,0 +1,55 @@
<?php
/**
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @copyright Copyright (c) 2017 Georg Ehrke <oc.list@georgehrke.com>
* @license GNU AGPL version 3 or any later version
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\DAV\CalDAV\Search\Xml\Filter;

use Sabre\DAV\Exception\BadRequest;
use Sabre\Xml\Reader;
use Sabre\Xml\XmlDeserializable;
use OCA\DAV\CalDAV\Search\SearchPlugin;

class ParamFilter implements XmlDeserializable {

/**
* @param Reader $reader
* @throws BadRequest
* @return string
*/
static function xmlDeserialize(Reader $reader) {
$att = $reader->parseAttributes();
$property = $att['property'];
$parameter = $att['name'];

$reader->parseInnerTree();

if (!is_string($property)) {
throw new BadRequest('The {' . SearchPlugin::NS_Nextcloud . '}param-filter requires a valid property attribute');

}
if (!is_string($parameter)) {
throw new BadRequest('The {' . SearchPlugin::NS_Nextcloud . '}param-filter requires a valid parameter attribute');
}

return [
'property' => $property,
'parameter' => $parameter,
];
}
}

+ 47
- 0
apps/dav/lib/CalDAV/Search/Xml/Filter/PropFilter.php View File

@@ -0,0 +1,47 @@
<?php
/**
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @copyright Copyright (c) 2017 Georg Ehrke <oc.list@georgehrke.com>
* @license GNU AGPL version 3 or any later version
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\DAV\CalDAV\Search\Xml\Filter;

use Sabre\DAV\Exception\BadRequest;
use Sabre\Xml\Reader;
use Sabre\Xml\XmlDeserializable;
use OCA\DAV\CalDAV\Search\SearchPlugin;

class PropFilter implements XmlDeserializable {

/**
* @param Reader $reader
* @throws BadRequest
* @return string
*/
static function xmlDeserialize(Reader $reader) {
$att = $reader->parseAttributes();
$componentName = $att['name'];

$reader->parseInnerTree();

if (!is_string($componentName)) {
throw new BadRequest('The {' . SearchPlugin::NS_Nextcloud . '}prop-filter requires a valid name attribute');
}

return $componentName;
}
}

+ 43
- 0
apps/dav/lib/CalDAV/Search/Xml/Filter/SearchTermFilter.php View File

@@ -0,0 +1,43 @@
<?php
/**
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @copyright Copyright (c) 2017 Georg Ehrke <oc.list@georgehrke.com>
* @license GNU AGPL version 3 or any later version
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\DAV\CalDAV\Search\Xml\Filter;

use Sabre\DAV\Exception\BadRequest;
use Sabre\Xml\Reader;
use Sabre\Xml\XmlDeserializable;
use OCA\DAV\CalDAV\Search\SearchPlugin;

class SearchTermFilter implements XmlDeserializable {

/**
* @param Reader $reader
* @throws BadRequest
* @return string
*/
static function xmlDeserialize(Reader $reader) {
$value = $reader->parseInnerTree();
if (!is_string($value)) {
throw new BadRequest('The {' . SearchPlugin::NS_Nextcloud . '}search-term has illegal value');
}

return $value;
}
}

+ 163
- 0
apps/dav/lib/CalDAV/Search/Xml/Request/CalendarSearchReport.php View File

@@ -0,0 +1,163 @@
<?php
/**
* @author Georg Ehrke <oc.list@georgehrke.com>
*
* @copyright Copyright (c) 2017 Georg Ehrke <oc.list@georgehrke.com>
* @license GNU AGPL version 3 or any later version
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OCA\DAV\CalDAV\Search\Xml\Request;

use Sabre\CalDAV\Plugin;
use Sabre\DAV\Exception\BadRequest;
use Sabre\Xml\Reader;
use Sabre\Xml\XmlDeserializable;
use OCA\DAV\CalDAV\Search\SearchPlugin;

/**
* CalendarSearchReport request parser.
*
* This class parses the {urn:ietf:params:xml:ns:caldav}calendar-query
* REPORT, as defined in:
*
* https:// link to standard
*/
class CalendarSearchReport implements XmlDeserializable {

/**
* An array with requested properties.
*
* @var array
*/
public $properties;

/**
* List of property/component filters.
*
* @var array
*/
public $filters;

/**
* @var int
*/
public $limit;

/**
* @var int
*/
public $offset;

/**
* The deserialize method is called during xml parsing.
*
* This method is called statically, this is because in theory this method
* may be used as a type of constructor, or factory method.
*
* Often you want to return an instance of the current class, but you are
* free to return other data as well.
*
* You are responsible for advancing the reader to the next element. Not
* doing anything will result in a never-ending loop.
*
* If you just want to skip parsing for this element altogether, you can
* just call $reader->next();
*
* $reader->parseInnerTree() will parse the entire sub-tree, and advance to
* the next element.
*
* @param Reader $reader
* @return mixed
*/
static function xmlDeserialize(Reader $reader) {
$elems = $reader->parseInnerTree([
'{http://nextcloud.com/ns}comp-filter' => 'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\CompFilter',
'{http://nextcloud.com/ns}prop-filter' => 'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\PropFilter',
'{http://nextcloud.com/ns}param-filter' => 'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\ParamFilter',
'{http://nextcloud.com/ns}search-term' => 'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\SearchTermFilter',
'{http://nextcloud.com/ns}limit' => 'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\LimitFilter',
'{http://nextcloud.com/ns}offset' => 'OCA\\DAV\\CalDAV\\Search\\Xml\\Filter\\OffsetFilter',
'{DAV:}prop' => 'Sabre\\Xml\\Element\\KeyValue',
]);

$newProps = [
'filters' => [],
'properties' => [],
'limit' => null,
'offset' => null
];

if (!is_array($elems)) {
$elems = [];
}

foreach ($elems as $elem) {
switch ($elem['name']) {
case '{DAV:}prop':
$newProps['properties'] = array_keys($elem['value']);
if (isset($elem['value']['{' . Plugin::NS_CALDAV . '}calendar-data'])) {
$newProps += $elem['value']['{' . Plugin::NS_CALDAV . '}calendar-data'];
}
break;
case '{' . SearchPlugin::NS_Nextcloud . '}filter':
foreach ($elem['value'] as $subElem) {
if ($subElem['name'] === '{' . SearchPlugin::NS_Nextcloud . '}comp-filter') {
if (!is_array($newProps['filters']['comps'])) {
$newProps['filters']['comps'] = [];
}
$newProps['filters']['comps'][] = $subElem['value'];
} elseif ($subElem['name'] === '{' . SearchPlugin::NS_Nextcloud . '}prop-filter') {
if (!is_array($newProps['filters']['props'])) {
$newProps['filters']['props'] = [];
}
$newProps['filters']['props'][] = $subElem['value'];
} elseif ($subElem['name'] === '{' . SearchPlugin::NS_Nextcloud . '}param-filter') {
if (!is_array($newProps['filters']['params'])) {
$newProps['filters']['params'] = [];
}
$newProps['filters']['params'][] = $subElem['value'];
} elseif ($subElem['name'] === '{' . SearchPlugin::NS_Nextcloud . '}search-term') {
$newProps['filters']['search-term'] = $subElem['value'];
}
}
break;
case '{' . SearchPlugin::NS_Nextcloud . '}limit':
$newProps['limit'] = $elem['value'];
break;
case '{' . SearchPlugin::NS_Nextcloud . '}offset':
$newProps['offset'] = $elem['value'];
break;

}
}

if (empty($newProps['filters'])) {
throw new BadRequest('The {' . SearchPlugin::NS_Nextcloud . '}filter element is required for this request');
}

$propsOrParamsDefined = (!empty($newProps['filters']['props']) || !empty($newProps['filters']));
$noCompsDefined = empty($newProps['filters']['comps']);
if ($propsOrParamsDefined && $noCompsDefined) {
throw new BadRequest('{' . SearchPlugin::NS_Nextcloud . '}prop-filter or {' . SearchPlugin::NS_Nextcloud . '}param-filter given without any {' . SearchPlugin::NS_Nextcloud . '}comp-filter');
}


$obj = new self();
foreach ($newProps as $key => $value) {
$obj->$key = $value;
}
return $obj;
}
}

+ 1
- 0
apps/dav/lib/Server.php View File

@@ -216,6 +216,7 @@ class Server {
\OC::$server->getCommentsManager(),
$userSession
));
$this->server->addPlugin(new \OCA\DAV\CalDAV\Search\SearchPlugin());
if ($view !== null) {
$this->server->addPlugin(new FilesReportPlugin(
$this->server->tree,

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