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Diffstat (limited to 'vendor/sabre/dav/lib/Sabre/CalDAV/Backend/PDO.php')
| -rw-r--r-- | vendor/sabre/dav/lib/Sabre/CalDAV/Backend/PDO.php | 691 |
1 files changed, 0 insertions, 691 deletions
diff --git a/vendor/sabre/dav/lib/Sabre/CalDAV/Backend/PDO.php b/vendor/sabre/dav/lib/Sabre/CalDAV/Backend/PDO.php deleted file mode 100644 index 2e93a7b25..000000000 --- a/vendor/sabre/dav/lib/Sabre/CalDAV/Backend/PDO.php +++ /dev/null @@ -1,691 +0,0 @@ -<?php - -namespace Sabre\CalDAV\Backend; - -use Sabre\VObject; -use Sabre\CalDAV; -use Sabre\DAV; - -/** - * PDO CalDAV backend - * - * This backend is used to store calendar-data in a PDO database, such as - * sqlite or MySQL - * - * @copyright Copyright (C) 2007-2014 fruux GmbH (https://fruux.com/). - * @author Evert Pot (http://evertpot.com/) - * @license http://sabre.io/license/ Modified BSD License - */ -class PDO extends AbstractBackend { - - /** - * We need to specify a max date, because we need to stop *somewhere* - * - * On 32 bit system the maximum for a signed integer is 2147483647, so - * MAX_DATE cannot be higher than date('Y-m-d', 2147483647) which results - * in 2038-01-19 to avoid problems when the date is converted - * to a unix timestamp. - */ - const MAX_DATE = '2038-01-01'; - - /** - * pdo - * - * @var \PDO - */ - protected $pdo; - - /** - * The table name that will be used for calendars - * - * @var string - */ - protected $calendarTableName; - - /** - * The table name that will be used for calendar objects - * - * @var string - */ - protected $calendarObjectTableName; - - /** - * List of CalDAV properties, and how they map to database fieldnames - * Add your own properties by simply adding on to this array. - * - * Note that only string-based properties are supported here. - * - * @var array - */ - public $propertyMap = array( - '{DAV:}displayname' => 'displayname', - '{urn:ietf:params:xml:ns:caldav}calendar-description' => 'description', - '{urn:ietf:params:xml:ns:caldav}calendar-timezone' => 'timezone', - '{http://apple.com/ns/ical/}calendar-order' => 'calendarorder', - '{http://apple.com/ns/ical/}calendar-color' => 'calendarcolor', - ); - - /** - * Creates the backend - * - * @param \PDO $pdo - * @param string $calendarTableName - * @param string $calendarObjectTableName - */ - public function __construct(\PDO $pdo, $calendarTableName = 'calendars', $calendarObjectTableName = 'calendarobjects') { - - $this->pdo = $pdo; - $this->calendarTableName = $calendarTableName; - $this->calendarObjectTableName = $calendarObjectTableName; - - } - - /** - * Returns a list of calendars for a principal. - * - * Every project is an array with the following keys: - * * id, a unique id that will be used by other functions to modify the - * calendar. This can be the same as the uri or a database key. - * * uri, which the basename of the uri with which the calendar is - * accessed. - * * principaluri. The owner of the calendar. Almost always the same as - * principalUri passed to this method. - * - * Furthermore it can contain webdav properties in clark notation. A very - * common one is '{DAV:}displayname'. - * - * @param string $principalUri - * @return array - */ - public function getCalendarsForUser($principalUri) { - - $fields = array_values($this->propertyMap); - $fields[] = 'id'; - $fields[] = 'uri'; - $fields[] = 'ctag'; - $fields[] = 'components'; - $fields[] = 'principaluri'; - $fields[] = 'transparent'; - - // Making fields a comma-delimited list - $fields = implode(', ', $fields); - $stmt = $this->pdo->prepare("SELECT " . $fields . " FROM ".$this->calendarTableName." WHERE principaluri = ? ORDER BY calendarorder ASC"); - $stmt->execute(array($principalUri)); - - $calendars = array(); - while($row = $stmt->fetch(\PDO::FETCH_ASSOC)) { - - $components = array(); - if ($row['components']) { - $components = explode(',',$row['components']); - } - - $calendar = array( - 'id' => $row['id'], - 'uri' => $row['uri'], - 'principaluri' => $row['principaluri'], - '{' . CalDAV\Plugin::NS_CALENDARSERVER . '}getctag' => $row['ctag']?$row['ctag']:'0', - '{' . CalDAV\Plugin::NS_CALDAV . '}supported-calendar-component-set' => new CalDAV\Property\SupportedCalendarComponentSet($components), - '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-calendar-transp' => new CalDAV\Property\ScheduleCalendarTransp($row['transparent']?'transparent':'opaque'), - ); - - - foreach($this->propertyMap as $xmlName=>$dbName) { - $calendar[$xmlName] = $row[$dbName]; - } - - $calendars[] = $calendar; - - } - - return $calendars; - - } - - /** - * Creates a new calendar for a principal. - * - * If the creation was a success, an id must be returned that can be used to reference - * this calendar in other methods, such as updateCalendar - * - * @param string $principalUri - * @param string $calendarUri - * @param array $properties - * @return string - */ - public function createCalendar($principalUri, $calendarUri, array $properties) { - - $fieldNames = array( - 'principaluri', - 'uri', - 'ctag', - 'transparent', - ); - $values = array( - ':principaluri' => $principalUri, - ':uri' => $calendarUri, - ':ctag' => 1, - ':transparent' => 0, - ); - - // Default value - $sccs = '{urn:ietf:params:xml:ns:caldav}supported-calendar-component-set'; - $fieldNames[] = 'components'; - if (!isset($properties[$sccs])) { - $values[':components'] = 'VEVENT,VTODO'; - } else { - if (!($properties[$sccs] instanceof CalDAV\Property\SupportedCalendarComponentSet)) { - throw new DAV\Exception('The ' . $sccs . ' property must be of type: \Sabre\CalDAV\Property\SupportedCalendarComponentSet'); - } - $values[':components'] = implode(',',$properties[$sccs]->getValue()); - } - $transp = '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-calendar-transp'; - if (isset($properties[$transp])) { - $values[':transparent'] = $properties[$transp]->getValue()==='transparent'; - } - - foreach($this->propertyMap as $xmlName=>$dbName) { - if (isset($properties[$xmlName])) { - - $values[':' . $dbName] = $properties[$xmlName]; - $fieldNames[] = $dbName; - } - } - - $stmt = $this->pdo->prepare("INSERT INTO ".$this->calendarTableName." (".implode(', ', $fieldNames).") VALUES (".implode(', ',array_keys($values)).")"); - $stmt->execute($values); - - return $this->pdo->lastInsertId(); - - } - - /** - * Updates properties for a calendar. - * - * The mutations array uses the propertyName in clark-notation as key, - * and the array value for the property value. In the case a property - * should be deleted, the property value will be null. - * - * This method must be atomic. If one property cannot be changed, the - * entire operation must fail. - * - * If the operation was successful, true can be returned. - * If the operation failed, false can be returned. - * - * Deletion of a non-existent property is always successful. - * - * Lastly, it is optional to return detailed information about any - * failures. In this case an array should be returned with the following - * structure: - * - * array( - * 403 => array( - * '{DAV:}displayname' => null, - * ), - * 424 => array( - * '{DAV:}owner' => null, - * ) - * ) - * - * In this example it was forbidden to update {DAV:}displayname. - * (403 Forbidden), which in turn also caused {DAV:}owner to fail - * (424 Failed Dependency) because the request needs to be atomic. - * - * @param string $calendarId - * @param array $mutations - * @return bool|array - */ - public function updateCalendar($calendarId, array $mutations) { - - $newValues = array(); - $result = array( - 200 => array(), // Ok - 403 => array(), // Forbidden - 424 => array(), // Failed Dependency - ); - - $hasError = false; - - foreach($mutations as $propertyName=>$propertyValue) { - - switch($propertyName) { - case '{' . CalDAV\Plugin::NS_CALDAV . '}schedule-calendar-transp' : - $fieldName = 'transparent'; - $newValues[$fieldName] = $propertyValue->getValue()==='transparent'; - break; - default : - // Checking the property map - if (!isset($this->propertyMap[$propertyName])) { - // We don't know about this property. - $hasError = true; - $result[403][$propertyName] = null; - unset($mutations[$propertyName]); - continue; - } - - $fieldName = $this->propertyMap[$propertyName]; - $newValues[$fieldName] = $propertyValue; - } - - } - - // If there were any errors we need to fail the request - if ($hasError) { - // Properties has the remaining properties - foreach($mutations as $propertyName=>$propertyValue) { - $result[424][$propertyName] = null; - } - - // Removing unused statuscodes for cleanliness - foreach($result as $status=>$properties) { - if (is_array($properties) && count($properties)===0) unset($result[$status]); - } - - return $result; - - } - - // Success - - // Now we're generating the sql query. - $valuesSql = array(); - foreach($newValues as $fieldName=>$value) { - $valuesSql[] = $fieldName . ' = ?'; - } - $valuesSql[] = 'ctag = ctag + 1'; - - $stmt = $this->pdo->prepare("UPDATE " . $this->calendarTableName . " SET " . implode(', ',$valuesSql) . " WHERE id = ?"); - $newValues['id'] = $calendarId; - $stmt->execute(array_values($newValues)); - - return true; - - } - - /** - * Delete a calendar and all it's objects - * - * @param string $calendarId - * @return void - */ - public function deleteCalendar($calendarId) { - - $stmt = $this->pdo->prepare('DELETE FROM '.$this->calendarObjectTableName.' WHERE calendarid = ?'); - $stmt->execute(array($calendarId)); - - $stmt = $this->pdo->prepare('DELETE FROM '.$this->calendarTableName.' WHERE id = ?'); - $stmt->execute(array($calendarId)); - - } - - /** - * Returns all calendar objects within a calendar. - * - * Every item contains an array with the following keys: - * * id - unique identifier which will be used for subsequent updates - * * calendardata - The iCalendar-compatible calendar data - * * uri - a unique key which will be used to construct the uri. This can be any arbitrary string. - * * lastmodified - a timestamp of the last modification time - * * etag - An arbitrary string, surrounded by double-quotes. (e.g.: - * ' "abcdef"') - * * calendarid - The calendarid as it was passed to this function. - * * size - The size of the calendar objects, in bytes. - * - * Note that the etag is optional, but it's highly encouraged to return for - * speed reasons. - * - * The calendardata is also optional. If it's not returned - * 'getCalendarObject' will be called later, which *is* expected to return - * calendardata. - * - * If neither etag or size are specified, the calendardata will be - * used/fetched to determine these numbers. If both are specified the - * amount of times this is needed is reduced by a great degree. - * - * @param string $calendarId - * @return array - */ - public function getCalendarObjects($calendarId) { - - $stmt = $this->pdo->prepare('SELECT id, uri, lastmodified, etag, calendarid, size FROM '.$this->calendarObjectTableName.' WHERE calendarid = ?'); - $stmt->execute(array($calendarId)); - - $result = array(); - foreach($stmt->fetchAll(\PDO::FETCH_ASSOC) as $row) { - $result[] = array( - 'id' => $row['id'], - 'uri' => $row['uri'], - 'lastmodified' => $row['lastmodified'], - 'etag' => '"' . $row['etag'] . '"', - 'calendarid' => $row['calendarid'], - 'size' => (int)$row['size'], - ); - } - - return $result; - - } - - /** - * Returns information from a single calendar object, based on it's object - * uri. - * - * The returned array must have the same keys as getCalendarObjects. The - * 'calendardata' object is required here though, while it's not required - * for getCalendarObjects. - * - * This method must return null if the object did not exist. - * - * @param string $calendarId - * @param string $objectUri - * @return array|null - */ - public function getCalendarObject($calendarId,$objectUri) { - - $stmt = $this->pdo->prepare('SELECT id, uri, lastmodified, etag, calendarid, size, calendardata FROM '.$this->calendarObjectTableName.' WHERE calendarid = ? AND uri = ?'); - $stmt->execute(array($calendarId, $objectUri)); - $row = $stmt->fetch(\PDO::FETCH_ASSOC); - - if(!$row) return null; - - return array( - 'id' => $row['id'], - 'uri' => $row['uri'], - 'lastmodified' => $row['lastmodified'], - 'etag' => '"' . $row['etag'] . '"', - 'calendarid' => $row['calendarid'], - 'size' => (int)$row['size'], - 'calendardata' => $row['calendardata'], - ); - - } - - - /** - * Creates a new calendar object. - * - * It is possible return an etag from this function, which will be used in - * the response to this PUT request. Note that the ETag must be surrounded - * by double-quotes. - * - * However, you should only really return this ETag if you don't mangle the - * calendar-data. If the result of a subsequent GET to this object is not - * the exact same as this request body, you should omit the ETag. - * - * @param mixed $calendarId - * @param string $objectUri - * @param string $calendarData - * @return string|null - */ - public function createCalendarObject($calendarId,$objectUri,$calendarData) { - - $extraData = $this->getDenormalizedData($calendarData); - - $stmt = $this->pdo->prepare('INSERT INTO '.$this->calendarObjectTableName.' (calendarid, uri, calendardata, lastmodified, etag, size, componenttype, firstoccurence, lastoccurence) VALUES (?,?,?,?,?,?,?,?,?)'); - $stmt->execute(array( - $calendarId, - $objectUri, - $calendarData, - time(), - $extraData['etag'], - $extraData['size'], - $extraData['componentType'], - $extraData['firstOccurence'], - $extraData['lastOccurence'], - )); - $stmt = $this->pdo->prepare('UPDATE '.$this->calendarTableName.' SET ctag = ctag + 1 WHERE id = ?'); - $stmt->execute(array($calendarId)); - - return '"' . $extraData['etag'] . '"'; - - } - - /** - * Updates an existing calendarobject, based on it's uri. - * - * It is possible return an etag from this function, which will be used in - * the response to this PUT request. Note that the ETag must be surrounded - * by double-quotes. - * - * However, you should only really return this ETag if you don't mangle the - * calendar-data. If the result of a subsequent GET to this object is not - * the exact same as this request body, you should omit the ETag. - * - * @param mixed $calendarId - * @param string $objectUri - * @param string $calendarData - * @return string|null - */ - public function updateCalendarObject($calendarId,$objectUri,$calendarData) { - - $extraData = $this->getDenormalizedData($calendarData); - - $stmt = $this->pdo->prepare('UPDATE '.$this->calendarObjectTableName.' SET calendardata = ?, lastmodified = ?, etag = ?, size = ?, componenttype = ?, firstoccurence = ?, lastoccurence = ? WHERE calendarid = ? AND uri = ?'); - $stmt->execute(array($calendarData,time(), $extraData['etag'], $extraData['size'], $extraData['componentType'], $extraData['firstOccurence'], $extraData['lastOccurence'] ,$calendarId,$objectUri)); - $stmt = $this->pdo->prepare('UPDATE '.$this->calendarTableName.' SET ctag = ctag + 1 WHERE id = ?'); - $stmt->execute(array($calendarId)); - - return '"' . $extraData['etag'] . '"'; - - } - - /** - * Parses some information from calendar objects, used for optimized - * calendar-queries. - * - * Returns an array with the following keys: - * * etag - * * size - * * componentType - * * firstOccurence - * * lastOccurence - * - * @param string $calendarData - * @return array - */ - protected function getDenormalizedData($calendarData) { - - $vObject = VObject\Reader::read($calendarData); - $componentType = null; - $component = null; - $firstOccurence = null; - $lastOccurence = null; - foreach($vObject->getComponents() as $component) { - if ($component->name!=='VTIMEZONE') { - $componentType = $component->name; - break; - } - } - if (!$componentType) { - throw new \Sabre\DAV\Exception\BadRequest('Calendar objects must have a VJOURNAL, VEVENT or VTODO component'); - } - if ($componentType === 'VEVENT') { - $firstOccurence = $component->DTSTART->getDateTime()->getTimeStamp(); - // Finding the last occurence is a bit harder - if (!isset($component->RRULE)) { - if (isset($component->DTEND)) { - $lastOccurence = $component->DTEND->getDateTime()->getTimeStamp(); - } elseif (isset($component->DURATION)) { - $endDate = clone $component->DTSTART->getDateTime(); - $endDate->add(VObject\DateTimeParser::parse($component->DURATION->getValue())); - $lastOccurence = $endDate->getTimeStamp(); - } elseif (!$component->DTSTART->hasTime()) { - $endDate = clone $component->DTSTART->getDateTime(); - $endDate->modify('+1 day'); - $lastOccurence = $endDate->getTimeStamp(); - } else { - $lastOccurence = $firstOccurence; - } - } else { - $it = new VObject\RecurrenceIterator($vObject, (string)$component->UID); - $maxDate = new \DateTime(self::MAX_DATE); - if ($it->isInfinite()) { - $lastOccurence = $maxDate->getTimeStamp(); - } else { - $end = $it->getDtEnd(); - while($it->valid() && $end < $maxDate) { - $end = $it->getDtEnd(); - $it->next(); - - } - $lastOccurence = $end->getTimeStamp(); - } - - } - } - - return array( - 'etag' => md5($calendarData), - 'size' => strlen($calendarData), - 'componentType' => $componentType, - 'firstOccurence' => $firstOccurence, - 'lastOccurence' => $lastOccurence, - ); - - } - - /** - * Deletes an existing calendar object. - * - * @param string $calendarId - * @param string $objectUri - * @return void - */ - public function deleteCalendarObject($calendarId,$objectUri) { - - $stmt = $this->pdo->prepare('DELETE FROM '.$this->calendarObjectTableName.' WHERE calendarid = ? AND uri = ?'); - $stmt->execute(array($calendarId,$objectUri)); - $stmt = $this->pdo->prepare('UPDATE '. $this->calendarTableName .' SET ctag = ctag + 1 WHERE id = ?'); - $stmt->execute(array($calendarId)); - - } - - /** - * Performs a calendar-query on the contents of this calendar. - * - * The calendar-query is defined in RFC4791 : CalDAV. Using the - * calendar-query it is possible for a client to request a specific set of - * object, based on contents of iCalendar properties, date-ranges and - * iCalendar component types (VTODO, VEVENT). - * - * This method should just return a list of (relative) urls that match this - * query. - * - * The list of filters are specified as an array. The exact array is - * documented by \Sabre\CalDAV\CalendarQueryParser. - * - * Note that it is extremely likely that getCalendarObject for every path - * returned from this method will be called almost immediately after. You - * may want to anticipate this to speed up these requests. - * - * This method provides a default implementation, which parses *all* the - * iCalendar objects in the specified calendar. - * - * This default may well be good enough for personal use, and calendars - * that aren't very large. But if you anticipate high usage, big calendars - * or high loads, you are strongly adviced to optimize certain paths. - * - * The best way to do so is override this method and to optimize - * specifically for 'common filters'. - * - * Requests that are extremely common are: - * * requests for just VEVENTS - * * requests for just VTODO - * * requests with a time-range-filter on a VEVENT. - * - * ..and combinations of these requests. It may not be worth it to try to - * handle every possible situation and just rely on the (relatively - * easy to use) CalendarQueryValidator to handle the rest. - * - * Note that especially time-range-filters may be difficult to parse. A - * time-range filter specified on a VEVENT must for instance also handle - * recurrence rules correctly. - * A good example of how to interprete all these filters can also simply - * be found in \Sabre\CalDAV\CalendarQueryFilter. This class is as correct - * as possible, so it gives you a good idea on what type of stuff you need - * to think of. - * - * This specific implementation (for the PDO) backend optimizes filters on - * specific components, and VEVENT time-ranges. - * - * @param string $calendarId - * @param array $filters - * @return array - */ - public function calendarQuery($calendarId, array $filters) { - - $result = array(); - $validator = new \Sabre\CalDAV\CalendarQueryValidator(); - - $componentType = null; - $requirePostFilter = true; - $timeRange = null; - - // if no filters were specified, we don't need to filter after a query - if (!$filters['prop-filters'] && !$filters['comp-filters']) { - $requirePostFilter = false; - } - - // Figuring out if there's a component filter - if (count($filters['comp-filters']) > 0 && !$filters['comp-filters'][0]['is-not-defined']) { - $componentType = $filters['comp-filters'][0]['name']; - - // Checking if we need post-filters - if (!$filters['prop-filters'] && !$filters['comp-filters'][0]['comp-filters'] && !$filters['comp-filters'][0]['time-range'] && !$filters['comp-filters'][0]['prop-filters']) { - $requirePostFilter = false; - } - // There was a time-range filter - if ($componentType == 'VEVENT' && isset($filters['comp-filters'][0]['time-range'])) { - $timeRange = $filters['comp-filters'][0]['time-range']; - - // If start time OR the end time is not specified, we can do a - // 100% accurate mysql query. - if (!$filters['prop-filters'] && !$filters['comp-filters'][0]['comp-filters'] && !$filters['comp-filters'][0]['prop-filters'] && (!$timeRange['start'] || !$timeRange['end'])) { - $requirePostFilter = false; - } - } - - } - - if ($requirePostFilter) { - $query = "SELECT uri, calendardata FROM ".$this->calendarObjectTableName." WHERE calendarid = :calendarid"; - } else { - $query = "SELECT uri FROM ".$this->calendarObjectTableName." WHERE calendarid = :calendarid"; - } - - $values = array( - 'calendarid' => $calendarId, - ); - - if ($componentType) { - $query.=" AND componenttype = :componenttype"; - $values['componenttype'] = $componentType; - } - - if ($timeRange && $timeRange['start']) { - $query.=" AND lastoccurence > :startdate"; - $values['startdate'] = $timeRange['start']->getTimeStamp(); - } - if ($timeRange && $timeRange['end']) { - $query.=" AND firstoccurence < :enddate"; - $values['enddate'] = $timeRange['end']->getTimeStamp(); - } - - $stmt = $this->pdo->prepare($query); - $stmt->execute($values); - - $result = array(); - while($row = $stmt->fetch(\PDO::FETCH_ASSOC)) { - if ($requirePostFilter) { - if (!$this->validateFilterForObject($row, $filters)) { - continue; - } - } - $result[] = $row['uri']; - - } - - return $result; - - } -} |