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	diff --git a/src/applications/calendar/controller/PhabricatorCalendarExportICSController.php b/src/applications/calendar/controller/PhabricatorCalendarExportICSController.php
	index a1264693b..0bb409c0b 100644
	--- a/src/applications/calendar/controller/PhabricatorCalendarExportICSController.php
	+++ b/src/applications/calendar/controller/PhabricatorCalendarExportICSController.php
	@@ -1,97 +1,100 @@
	<?php

	final class PhabricatorCalendarExportICSController
	extends PhabricatorCalendarController {

	public function shouldRequireLogin() {
	// Export URIs are available if you know the secret key. We can't do any
	// other kind of authentication because third-party applications like
	// Google Calendar and Calendar.app need to be able to fetch these URIs.
	return false;
	}

	public function handleRequest(AphrontRequest $request) {
	$omnipotent = PhabricatorUser::getOmnipotentUser();

	// NOTE: We're using the omnipotent viewer to fetch the export, but the
	// URI must contain the secret key. Once we load the export we'll figure
	// out who the effective viewer is.
	$export = id(new PhabricatorCalendarExportQuery())
	->setViewer($omnipotent)
	->withSecretKeys(array($request->getURIData('secretKey')))
	->executeOne();
	if (!$export) {
	return new Aphront404Response();
	}

	if ($export->getIsDisabled()) {
	return new Aphront404Response();
	}

	$author = id(new PhabricatorPeopleQuery())
	->setViewer($omnipotent)
	->withPHIDs(array($export->getAuthorPHID()))
	->needUserSettings(true)
	->executeOne();
	if (!$author) {
	return new Aphront404Response();
	}

	$mode = $export->getPolicyMode();
	switch ($mode) {
	case PhabricatorCalendarExport::MODE_PUBLIC:
	$viewer = new PhabricatorUser();
	break;
	case PhabricatorCalendarExport::MODE_PRIVILEGED:
	$viewer = $author;
	break;
	default:
	throw new Exception(
	pht(
	'This export has an invalid mode ("%s").',
	$mode));
	}

	$engine = id(new PhabricatorCalendarEventSearchEngine())
	->setViewer($viewer);

	$query_key = $export->getQueryKey();
	$saved = id(new PhabricatorSavedQueryQuery())
	->setViewer($omnipotent)
	->withEngineClassNames(array(get_class($engine)))
	->withQueryKeys(array($query_key))
	->executeOne();
	if (!$saved) {
	$saved = $engine->buildSavedQueryFromBuiltin($query_key);
	}

	if (!$saved) {
	return new Aphront404Response();
	}

	$saved = clone $saved;

	// Mark this as a query for export, so we get the correct ghost/recurring
	// behaviors. We also want to load all matching events.
	$saved->setParameter('export', true);
	$saved->setParameter('limit', 0xFFFF);

	// Remove any range constraints. We always export all matching events into
	// ICS files.
	$saved->setParameter('rangeStart', null);
	$saved->setParameter('rangeEnd', null);
	$saved->setParameter('upcoming', null);

	+ // The "month" and "day" display modes imply time ranges.
	+ $saved->setParameter('display', 'list');
	+
	$query = $engine->buildQueryFromSavedQuery($saved);

	$events = $query
	->setViewer($viewer)
	->execute();

	return $this->newICSResponse(
	$viewer,
	$export->getICSFilename(),
	$events);
	}

	}
	diff --git a/src/applications/calendar/query/PhabricatorCalendarEventQuery.php b/src/applications/calendar/query/PhabricatorCalendarEventQuery.php
	index a8d1ccdc1..bf1d9b43e 100644
	--- a/src/applications/calendar/query/PhabricatorCalendarEventQuery.php
	+++ b/src/applications/calendar/query/PhabricatorCalendarEventQuery.php
	@@ -1,754 +1,753 @@
	<?php

	final class PhabricatorCalendarEventQuery
	extends PhabricatorCursorPagedPolicyAwareQuery {

	private $ids;
	private $phids;
	private $rangeBegin;
	private $rangeEnd;
	private $inviteePHIDs;
	private $hostPHIDs;
	private $isCancelled;
	private $eventsWithNoParent;
	private $instanceSequencePairs;
	private $isStub;
	private $parentEventPHIDs;
	private $importSourcePHIDs;
	private $importAuthorPHIDs;
	private $importUIDs;
	private $utcInitialEpochMin;
	private $utcInitialEpochMax;
	private $isImported;
	private $needRSVPs;

	private $generateGhosts = false;

	public function newResultObject() {
	return new PhabricatorCalendarEvent();
	}

	public function setGenerateGhosts($generate_ghosts) {
	$this->generateGhosts = $generate_ghosts;
	return $this;
	}

	public function withIDs(array $ids) {
	$this->ids = $ids;
	return $this;
	}

	public function withPHIDs(array $phids) {
	$this->phids = $phids;
	return $this;
	}

	public function withDateRange($begin, $end) {
	$this->rangeBegin = $begin;
	$this->rangeEnd = $end;
	return $this;
	}

	public function withUTCInitialEpochBetween($min, $max) {
	$this->utcInitialEpochMin = $min;
	$this->utcInitialEpochMax = $max;
	return $this;
	}

	public function withInvitedPHIDs(array $phids) {
	$this->inviteePHIDs = $phids;
	return $this;
	}

	public function withHostPHIDs(array $phids) {
	$this->hostPHIDs = $phids;
	return $this;
	}

	public function withIsCancelled($is_cancelled) {
	$this->isCancelled = $is_cancelled;
	return $this;
	}

	public function withIsStub($is_stub) {
	$this->isStub = $is_stub;
	return $this;
	}

	public function withEventsWithNoParent($events_with_no_parent) {
	$this->eventsWithNoParent = $events_with_no_parent;
	return $this;
	}

	public function withInstanceSequencePairs(array $pairs) {
	$this->instanceSequencePairs = $pairs;
	return $this;
	}

	public function withParentEventPHIDs(array $parent_phids) {
	$this->parentEventPHIDs = $parent_phids;
	return $this;
	}

	public function withImportSourcePHIDs(array $import_phids) {
	$this->importSourcePHIDs = $import_phids;
	return $this;
	}

	public function withImportAuthorPHIDs(array $author_phids) {
	$this->importAuthorPHIDs = $author_phids;
	return $this;
	}

	public function withImportUIDs(array $uids) {
	$this->importUIDs = $uids;
	return $this;
	}

	public function withIsImported($is_imported) {
	$this->isImported = $is_imported;
	return $this;
	}

	public function needRSVPs(array $phids) {
	$this->needRSVPs = $phids;
	return $this;
	}

	protected function getDefaultOrderVector() {
	return array('start', 'id');
	}

	public function getBuiltinOrders() {
	return array(
	'start' => array(
	'vector' => array('start', 'id'),
	'name' => pht('Event Start'),
	),
	) + parent::getBuiltinOrders();
	}

	public function getOrderableColumns() {
	return array(
	'start' => array(
	'table' => $this->getPrimaryTableAlias(),
	'column' => 'utcInitialEpoch',
	'reverse' => true,
	'type' => 'int',
	'unique' => false,
	),
	) + parent::getOrderableColumns();
	}

	protected function getPagingValueMap($cursor, array $keys) {
	$event = $this->loadCursorObject($cursor);
	return array(
	'start' => $event->getStartDateTimeEpoch(),
	'id' => $event->getID(),
	);
	}

	protected function shouldLimitResults() {
	// When generating ghosts, we can't rely on database ordering because
	// MySQL can't predict the ghost start times. We'll just load all matching
	// events, then generate results from there.
	if ($this->generateGhosts) {
	return false;
	}

	return true;
	}

	protected function loadPage() {
	$events = $this->loadStandardPage($this->newResultObject());

	$viewer = $this->getViewer();
	foreach ($events as $event) {
	$event->applyViewerTimezone($viewer);
	}

	if (!$this->generateGhosts) {
	return $events;
	}

	$raw_limit = $this->getRawResultLimit();
	-
	if (!$raw_limit && !$this->rangeEnd) {
	throw new Exception(
	pht(
	'Event queries which generate ghost events must include either a '.
	'result limit or an end date, because they may otherwise generate '.
	'an infinite number of results. This query has neither.'));
	}

	foreach ($events as $key => $event) {
	$sequence_start = 0;
	$sequence_end = null;
	$end = null;

	$instance_of = $event->getInstanceOfEventPHID();

	if ($instance_of == null && $this->isCancelled !== null) {
	if ($event->getIsCancelled() != $this->isCancelled) {
	unset($events[$key]);
	continue;
	}
	}
	}

	// Pull out all of the parents first. We may discard them as we begin
	// generating ghost events, but we still want to process all of them.
	$parents = array();
	foreach ($events as $key => $event) {
	if ($event->isParentEvent()) {
	$parents[$key] = $event;
	}
	}

	// Now that we've picked out all the parent events, we can immediately
	// discard anything outside of the time window.
	$events = $this->getEventsInRange($events);

	$generate_from = $this->rangeBegin;
	$generate_until = $this->rangeEnd;
	foreach ($parents as $key => $event) {
	$duration = $event->getDuration();

	$start_date = $this->getRecurrenceWindowStart(
	$event,
	$generate_from - $duration);

	$end_date = $this->getRecurrenceWindowEnd(
	$event,
	$generate_until);

	$limit = $this->getRecurrenceLimit($event, $raw_limit);

	$set = $event->newRecurrenceSet();

	$recurrences = $set->getEventsBetween(
	null,
	$end_date,
	$limit + 1);

	// We're generating events from the beginning and then filtering them
	// here (instead of only generating events starting at the start date)
	// because we need to know the proper sequence indexes to generate ghost
	// events. This may change after RDATE support.
	if ($start_date) {
	$start_epoch = $start_date->getEpoch();
	} else {
	$start_epoch = null;
	}

	foreach ($recurrences as $sequence_index => $sequence_datetime) {
	if (!$sequence_index) {
	// This is the parent event, which we already have.
	continue;
	}

	if ($start_epoch) {
	if ($sequence_datetime->getEpoch() < $start_epoch) {
	continue;
	}
	}

	$events[] = $event->newGhost(
	$viewer,
	$sequence_index,
	$sequence_datetime);
	}

	// NOTE: We're slicing results every time because this makes it cheaper
	// to generate future ghosts. If we already have 100 events that occur
	// before July 1, we know we never need to generate ghosts after that
	// because they couldn't possibly ever appear in the result set.

	if ($raw_limit) {
	if (count($events) > $raw_limit) {
	$events = msort($events, 'getStartDateTimeEpoch');
	$events = array_slice($events, 0, $raw_limit, true);
	$generate_until = last($events)->getEndDateTimeEpoch();
	}
	}
	}

	// Now that we're done generating ghost events, we're going to remove any
	// ghosts that we have concrete events for (or which we can load the
	// concrete events for). These concrete events are generated when users
	// edit a ghost, and replace the ghost events.

	// First, generate a map of all concrete <parentPHID, sequence> events we
	// already loaded. We don't need to load these again.
	$have_pairs = array();
	foreach ($events as $event) {
	if ($event->getIsGhostEvent()) {
	continue;
	}

	$parent_phid = $event->getInstanceOfEventPHID();
	$sequence = $event->getSequenceIndex();

	$have_pairs[$parent_phid][$sequence] = true;
	}

	// Now, generate a map of all <parentPHID, sequence> events we generated
	// ghosts for. We need to try to load these if we don't already have them.
	$map = array();
	$parent_pairs = array();
	foreach ($events as $key => $event) {
	if (!$event->getIsGhostEvent()) {
	continue;
	}

	$parent_phid = $event->getInstanceOfEventPHID();
	$sequence = $event->getSequenceIndex();

	// We already loaded the concrete version of this event, so we can just
	// throw out the ghost and move on.
	if (isset($have_pairs[$parent_phid][$sequence])) {
	unset($events[$key]);
	continue;
	}

	// We didn't load the concrete version of this event, so we need to
	// try to load it if it exists.
	$parent_pairs[] = array($parent_phid, $sequence);
	$map[$parent_phid][$sequence] = $key;
	}

	if ($parent_pairs) {
	$instances = id(new self())
	->setViewer($viewer)
	->setParentQuery($this)
	->withInstanceSequencePairs($parent_pairs)
	->execute();

	foreach ($instances as $instance) {
	$parent_phid = $instance->getInstanceOfEventPHID();
	$sequence = $instance->getSequenceIndex();

	$indexes = idx($map, $parent_phid);
	$key = idx($indexes, $sequence);

	// Replace the ghost with the corresponding concrete event.
	$events[$key] = $instance;
	}
	}

	$events = msort($events, 'getStartDateTimeEpoch');

	return $events;
	}

	protected function buildJoinClauseParts(AphrontDatabaseConnection $conn_r) {
	$parts = parent::buildJoinClauseParts($conn_r);

	if ($this->inviteePHIDs !== null) {
	$parts[] = qsprintf(
	$conn_r,
	'JOIN %T invitee ON invitee.eventPHID = event.phid
	AND invitee.status != %s',
	id(new PhabricatorCalendarEventInvitee())->getTableName(),
	PhabricatorCalendarEventInvitee::STATUS_UNINVITED);
	}

	return $parts;
	}

	protected function buildWhereClauseParts(AphrontDatabaseConnection $conn) {
	$where = parent::buildWhereClauseParts($conn);

	if ($this->ids !== null) {
	$where[] = qsprintf(
	$conn,
	'event.id IN (%Ld)',
	$this->ids);
	}

	if ($this->phids !== null) {
	$where[] = qsprintf(
	$conn,
	'event.phid IN (%Ls)',
	$this->phids);
	}

	// NOTE: The date ranges we query for are larger than the requested ranges
	// because we need to catch all-day events. We'll refine this range later
	// after adjusting the visible range of events we load.

	if ($this->rangeBegin) {
	$where[] = qsprintf(
	$conn,
	'(event.utcUntilEpoch >= %d) OR (event.utcUntilEpoch IS NULL)',
	$this->rangeBegin - phutil_units('16 hours in seconds'));
	}

	if ($this->rangeEnd) {
	$where[] = qsprintf(
	$conn,
	'event.utcInitialEpoch <= %d',
	$this->rangeEnd + phutil_units('16 hours in seconds'));
	}

	if ($this->utcInitialEpochMin !== null) {
	$where[] = qsprintf(
	$conn,
	'event.utcInitialEpoch >= %d',
	$this->utcInitialEpochMin);
	}

	if ($this->utcInitialEpochMax !== null) {
	$where[] = qsprintf(
	$conn,
	'event.utcInitialEpoch <= %d',
	$this->utcInitialEpochMax);
	}

	if ($this->inviteePHIDs !== null) {
	$where[] = qsprintf(
	$conn,
	'invitee.inviteePHID IN (%Ls)',
	$this->inviteePHIDs);
	}

	if ($this->hostPHIDs !== null) {
	$where[] = qsprintf(
	$conn,
	'event.hostPHID IN (%Ls)',
	$this->hostPHIDs);
	}

	if ($this->isCancelled !== null) {
	$where[] = qsprintf(
	$conn,
	'event.isCancelled = %d',
	(int)$this->isCancelled);
	}

	if ($this->eventsWithNoParent == true) {
	$where[] = qsprintf(
	$conn,
	'event.instanceOfEventPHID IS NULL');
	}

	if ($this->instanceSequencePairs !== null) {
	$sql = array();

	foreach ($this->instanceSequencePairs as $pair) {
	$sql[] = qsprintf(
	$conn,
	'(event.instanceOfEventPHID = %s AND event.sequenceIndex = %d)',
	$pair[0],
	$pair[1]);
	}

	$where[] = qsprintf(
	$conn,
	'%Q',
	implode(' OR ', $sql));
	}

	if ($this->isStub !== null) {
	$where[] = qsprintf(
	$conn,
	'event.isStub = %d',
	(int)$this->isStub);
	}

	if ($this->parentEventPHIDs !== null) {
	$where[] = qsprintf(
	$conn,
	'event.instanceOfEventPHID IN (%Ls)',
	$this->parentEventPHIDs);
	}

	if ($this->importSourcePHIDs !== null) {
	$where[] = qsprintf(
	$conn,
	'event.importSourcePHID IN (%Ls)',
	$this->importSourcePHIDs);
	}

	if ($this->importAuthorPHIDs !== null) {
	$where[] = qsprintf(
	$conn,
	'event.importAuthorPHID IN (%Ls)',
	$this->importAuthorPHIDs);
	}

	if ($this->importUIDs !== null) {
	$where[] = qsprintf(
	$conn,
	'event.importUID IN (%Ls)',
	$this->importUIDs);
	}

	if ($this->isImported !== null) {
	if ($this->isImported) {
	$where[] = qsprintf(
	$conn,
	'event.importSourcePHID IS NOT NULL');
	} else {
	$where[] = qsprintf(
	$conn,
	'event.importSourcePHID IS NULL');
	}
	}

	return $where;
	}

	protected function getPrimaryTableAlias() {
	return 'event';
	}

	protected function shouldGroupQueryResultRows() {
	if ($this->inviteePHIDs !== null) {
	return true;
	}
	return parent::shouldGroupQueryResultRows();
	}

	protected function getApplicationSearchObjectPHIDColumn() {
	return 'event.phid';
	}

	public function getQueryApplicationClass() {
	return 'PhabricatorCalendarApplication';
	}


	protected function willFilterPage(array $events) {
	$instance_of_event_phids = array();
	$recurring_events = array();
	$viewer = $this->getViewer();

	$events = $this->getEventsInRange($events);

	$import_phids = array();
	foreach ($events as $event) {
	$import_phid = $event->getImportSourcePHID();
	if ($import_phid !== null) {
	$import_phids[$import_phid] = $import_phid;
	}
	}

	if ($import_phids) {
	$imports = id(new PhabricatorCalendarImportQuery())
	->setParentQuery($this)
	->setViewer($viewer)
	->withPHIDs($import_phids)
	->execute();
	$imports = mpull($imports, null, 'getPHID');
	} else {
	$imports = array();
	}

	foreach ($events as $key => $event) {
	$import_phid = $event->getImportSourcePHID();
	if ($import_phid === null) {
	$event->attachImportSource(null);
	continue;
	}

	$import = idx($imports, $import_phid);
	if (!$import) {
	unset($events[$key]);
	$this->didRejectResult($event);
	continue;
	}

	$event->attachImportSource($import);
	}

	$phids = array();

	foreach ($events as $event) {
	$phids[] = $event->getPHID();
	$instance_of = $event->getInstanceOfEventPHID();

	if ($instance_of) {
	$instance_of_event_phids[] = $instance_of;
	}
	}

	if (count($instance_of_event_phids) > 0) {
	$recurring_events = id(new PhabricatorCalendarEventQuery())
	->setViewer($viewer)
	->withPHIDs($instance_of_event_phids)
	->withEventsWithNoParent(true)
	->execute();

	$recurring_events = mpull($recurring_events, null, 'getPHID');
	}

	if ($events) {
	$invitees = id(new PhabricatorCalendarEventInviteeQuery())
	->setViewer($viewer)
	->withEventPHIDs($phids)
	->execute();
	$invitees = mgroup($invitees, 'getEventPHID');
	} else {
	$invitees = array();
	}

	foreach ($events as $key => $event) {
	$event_invitees = idx($invitees, $event->getPHID(), array());
	$event->attachInvitees($event_invitees);

	$instance_of = $event->getInstanceOfEventPHID();
	if (!$instance_of) {
	continue;
	}
	$parent = idx($recurring_events, $instance_of);

	// should never get here
	if (!$parent) {
	unset($events[$key]);
	continue;
	}
	$event->attachParentEvent($parent);

	if ($this->isCancelled !== null) {
	if ($event->getIsCancelled() != $this->isCancelled) {
	unset($events[$key]);
	continue;
	}
	}
	}

	$events = msort($events, 'getStartDateTimeEpoch');

	if ($this->needRSVPs) {
	$rsvp_phids = $this->needRSVPs;
	$project_type = PhabricatorProjectProjectPHIDType::TYPECONST;

	$project_phids = array();
	foreach ($events as $event) {
	foreach ($event->getInvitees() as $invitee) {
	$invitee_phid = $invitee->getInviteePHID();
	if (phid_get_type($invitee_phid) == $project_type) {
	$project_phids[] = $invitee_phid;
	}
	}
	}

	if ($project_phids) {
	$member_type = PhabricatorProjectMaterializedMemberEdgeType::EDGECONST;

	$query = id(new PhabricatorEdgeQuery())
	->withSourcePHIDs($project_phids)
	->withEdgeTypes(array($member_type))
	->withDestinationPHIDs($rsvp_phids);

	$edges = $query->execute();

	$project_map = array();
	foreach ($edges as $src => $types) {
	foreach ($types as $type => $dsts) {
	foreach ($dsts as $dst => $edge) {
	$project_map[$dst][] = $src;
	}
	}
	}
	} else {
	$project_map = array();
	}

	$membership_map = array();
	foreach ($rsvp_phids as $rsvp_phid) {
	$membership_map[$rsvp_phid] = array();
	$membership_map[$rsvp_phid][] = $rsvp_phid;

	$project_phids = idx($project_map, $rsvp_phid);
	if ($project_phids) {
	foreach ($project_phids as $project_phid) {
	$membership_map[$rsvp_phid][] = $project_phid;
	}
	}
	}

	foreach ($events as $event) {
	$invitees = $event->getInvitees();
	$invitees = mpull($invitees, null, 'getInviteePHID');

	$rsvp_map = array();
	foreach ($rsvp_phids as $rsvp_phid) {
	$membership_phids = $membership_map[$rsvp_phid];
	$rsvps = array_select_keys($invitees, $membership_phids);
	$rsvp_map[$rsvp_phid] = $rsvps;
	}

	$event->attachRSVPs($rsvp_map);
	}
	}

	return $events;
	}

	private function getEventsInRange(array $events) {
	$range_start = $this->rangeBegin;
	$range_end = $this->rangeEnd;

	foreach ($events as $key => $event) {
	$event_start = $event->getStartDateTimeEpoch();
	$event_end = $event->getEndDateTimeEpoch();

	if ($range_start && $event_end < $range_start) {
	unset($events[$key]);
	}

	if ($range_end && $event_start > $range_end) {
	unset($events[$key]);
	}
	}

	return $events;
	}

	private function getRecurrenceWindowStart(
	PhabricatorCalendarEvent $event,
	$generate_from) {

	if (!$generate_from) {
	return null;
	}

	return PhutilCalendarAbsoluteDateTime::newFromEpoch($generate_from);
	}

	private function getRecurrenceWindowEnd(
	PhabricatorCalendarEvent $event,
	$generate_until) {

	$end_epochs = array();
	if ($generate_until) {
	$end_epochs[] = $generate_until;
	}

	$until_epoch = $event->getUntilDateTimeEpoch();
	if ($until_epoch) {
	$end_epochs[] = $until_epoch;
	}

	if (!$end_epochs) {
	return null;
	}

	return PhutilCalendarAbsoluteDateTime::newFromEpoch(min($end_epochs));
	}

	private function getRecurrenceLimit(
	PhabricatorCalendarEvent $event,
	$raw_limit) {

	$count = $event->getRecurrenceCount();
	if ($count && ($count <= $raw_limit)) {
	return ($count - 1);
	}

	return $raw_limit;
	}

	}
	diff --git a/src/applications/calendar/query/PhabricatorCalendarEventSearchEngine.php b/src/applications/calendar/query/PhabricatorCalendarEventSearchEngine.php
	index 704f161e3..05d4eadb1 100644
	--- a/src/applications/calendar/query/PhabricatorCalendarEventSearchEngine.php
	+++ b/src/applications/calendar/query/PhabricatorCalendarEventSearchEngine.php
	@@ -1,625 +1,631 @@
	<?php

	final class PhabricatorCalendarEventSearchEngine
	extends PhabricatorApplicationSearchEngine {

	private $calendarYear;
	private $calendarMonth;
	private $calendarDay;

	public function getResultTypeDescription() {
	return pht('Calendar Events');
	}

	public function getApplicationClassName() {
	return 'PhabricatorCalendarApplication';
	}

	public function newQuery() {
	$viewer = $this->requireViewer();

	return id(new PhabricatorCalendarEventQuery())
	->needRSVPs(array($viewer->getPHID()));
	}

	protected function shouldShowOrderField() {
	return false;
	}

	protected function buildCustomSearchFields() {
	return array(
	id(new PhabricatorSearchDatasourceField())
	->setLabel(pht('Hosts'))
	->setKey('hostPHIDs')
	->setAliases(array('host', 'hostPHID', 'hosts'))
	->setDatasource(new PhabricatorPeopleUserFunctionDatasource()),
	id(new PhabricatorSearchDatasourceField())
	->setLabel(pht('Invited'))
	->setKey('invitedPHIDs')
	->setDatasource(new PhabricatorCalendarInviteeDatasource()),
	id(new PhabricatorSearchDateControlField())
	->setLabel(pht('Occurs After'))
	->setKey('rangeStart'),
	id(new PhabricatorSearchDateControlField())
	->setLabel(pht('Occurs Before'))
	->setKey('rangeEnd')
	->setAliases(array('rangeEnd')),
	id(new PhabricatorSearchCheckboxesField())
	->setKey('upcoming')
	->setOptions(array(
	'upcoming' => pht('Show only upcoming events.'),
	)),
	id(new PhabricatorSearchSelectField())
	->setLabel(pht('Cancelled Events'))
	->setKey('isCancelled')
	->setOptions($this->getCancelledOptions())
	->setDefault('active'),
	id(new PhabricatorPHIDsSearchField())
	->setLabel(pht('Import Sources'))
	->setKey('importSourcePHIDs')
	->setAliases(array('importSourcePHID')),
	id(new PhabricatorSearchSelectField())
	->setLabel(pht('Display Options'))
	->setKey('display')
	->setOptions($this->getViewOptions())
	->setDefault('month'),
	);
	}

	private function getCancelledOptions() {
	return array(
	'active' => pht('Active Events Only'),
	'cancelled' => pht('Cancelled Events Only'),
	'both' => pht('Both Cancelled and Active Events'),
	);
	}

	private function getViewOptions() {
	return array(
	'month' => pht('Month View'),
	'day' => pht('Day View'),
	'list' => pht('List View'),
	);
	}

	+ public function buildQueryFromSavedQuery(PhabricatorSavedQuery $saved) {
	+ $query = parent::buildQueryFromSavedQuery($saved);
	+
	+ // If this is an export query for generating an ".ics" file, don't
	+ // build ghost events.
	+ if ($saved->getParameter('export')) {
	+ $query->setGenerateGhosts(false);
	+ }
	+
	+ return $query;
	+ }
	+
	protected function buildQueryFromParameters(array $map) {
	$query = $this->newQuery();
	$viewer = $this->requireViewer();

	if ($map['hostPHIDs']) {
	$query->withHostPHIDs($map['hostPHIDs']);
	}

	if ($map['invitedPHIDs']) {
	$query->withInvitedPHIDs($map['invitedPHIDs']);
	}

	$range_start = $map['rangeStart'];
	$range_end = $map['rangeEnd'];
	$display = $map['display'];

	if ($map['upcoming'] && $map['upcoming'][0] == 'upcoming') {
	$upcoming = true;
	} else {
	$upcoming = false;
	}

	list($range_start, $range_end) = $this->getQueryDateRange(
	$range_start,
	$range_end,
	$display,
	$upcoming);

	$query->withDateRange($range_start, $range_end);

	switch ($map['isCancelled']) {
	case 'active':
	$query->withIsCancelled(false);
	break;
	case 'cancelled':
	$query->withIsCancelled(true);
	break;
	}

	if ($map['importSourcePHIDs']) {
	$query->withImportSourcePHIDs($map['importSourcePHIDs']);
	}

	- // Generate ghosts (and ignore stub events) if we aren't querying for
	- // specific events or exporting.
	- if (!empty($map['export'])) {
	- // This is a specific mode enabled by event exports.
	- $query
	- ->withIsStub(false);
	- } else if (!$map['ids'] && !$map['phids']) {
	+ if (!$map['ids'] && !$map['phids']) {
	$query
	->withIsStub(false)
	->setGenerateGhosts(true);
	}

	return $query;
	}

	private function getQueryDateRange(
	$start_date_wild,
	$end_date_wild,
	$display,
	$upcoming) {

	$start_date_value = $this->getSafeDate($start_date_wild);
	$end_date_value = $this->getSafeDate($end_date_wild);

	$viewer = $this->requireViewer();
	$timezone = new DateTimeZone($viewer->getTimezoneIdentifier());
	$min_range = null;
	$max_range = null;

	$min_range = $start_date_value->getEpoch();
	$max_range = $end_date_value->getEpoch();

	if ($display == 'month' \|\| $display == 'day') {
	list($start_year, $start_month, $start_day) =
	$this->getDisplayYearAndMonthAndDay($min_range, $max_range, $display);

	$start_day = new DateTime(
	"{$start_year}-{$start_month}-{$start_day}",
	$timezone);
	$next = clone $start_day;

	if ($display == 'month') {
	$next->modify('+1 month');
	} else if ($display == 'day') {
	$next->modify('+7 day');
	}

	$display_start = $start_day->format('U');
	$display_end = $next->format('U');

	$start_of_week = $viewer->getUserSetting(
	PhabricatorWeekStartDaySetting::SETTINGKEY);

	$end_of_week = ($start_of_week + 6) % 7;

	$first_of_month = $start_day->format('w');
	$last_of_month = id(clone $next)->modify('-1 day')->format('w');

	if (!$min_range \|\| ($min_range < $display_start)) {
	$min_range = $display_start;

	if ($display == 'month' &&
	$first_of_month !== $start_of_week) {
	$interim_day_num = ($first_of_month + 7 - $start_of_week) % 7;
	$min_range = id(clone $start_day)
	->modify('-'.$interim_day_num.' days')
	->format('U');
	}
	}
	if (!$max_range \|\| ($max_range > $display_end)) {
	$max_range = $display_end;

	if ($display == 'month' &&
	$last_of_month !== $end_of_week) {
	$interim_day_num = ($end_of_week + 7 - $last_of_month) % 7;
	$max_range = id(clone $next)
	->modify('+'.$interim_day_num.' days')
	->format('U');
	}
	}
	}

	if ($upcoming) {
	$now = PhabricatorTime::getNow();
	if ($min_range) {
	$min_range = max($now, $min_range);
	} else {
	$min_range = $now;
	}
	}

	return array($min_range, $max_range);
	}

	protected function getURI($path) {
	return '/calendar/'.$path;
	}

	protected function getBuiltinQueryNames() {
	$names = array(
	'month' => pht('Month View'),
	'day' => pht('Day View'),
	'upcoming' => pht('Upcoming Events'),
	'all' => pht('All Events'),
	);

	return $names;
	}

	public function setCalendarYearAndMonthAndDay($year, $month, $day = null) {
	$this->calendarYear = $year;
	$this->calendarMonth = $month;
	$this->calendarDay = $day;

	return $this;
	}

	public function buildSavedQueryFromBuiltin($query_key) {
	$query = $this->newSavedQuery();
	$query->setQueryKey($query_key);

	switch ($query_key) {
	case 'month':
	return $query->setParameter('display', 'month');
	case 'day':
	return $query->setParameter('display', 'day');
	case 'upcoming':
	return $query
	->setParameter('display', 'list')
	->setParameter('upcoming', array(
	0 => 'upcoming',
	));
	case 'all':
	return $query;
	}

	return parent::buildSavedQueryFromBuiltin($query_key);
	}

	protected function renderResultList(
	array $events,
	PhabricatorSavedQuery $query,
	array $handles) {

	if ($this->isMonthView($query)) {
	$result = $this->buildCalendarMonthView($events, $query);
	} else if ($this->isDayView($query)) {
	$result = $this->buildCalendarDayView($events, $query);
	} else {
	$result = $this->buildCalendarListView($events, $query);
	}

	return $result;
	}

	private function buildCalendarListView(
	array $events,
	PhabricatorSavedQuery $query) {

	assert_instances_of($events, 'PhabricatorCalendarEvent');
	$viewer = $this->requireViewer();
	$list = new PHUIObjectItemListView();

	foreach ($events as $event) {
	if ($event->getIsGhostEvent()) {
	$monogram = $event->getParentEvent()->getMonogram();
	$index = $event->getSequenceIndex();
	$monogram = "{$monogram}/{$index}";
	} else {
	$monogram = $event->getMonogram();
	}

	$item = id(new PHUIObjectItemView())
	->setUser($viewer)
	->setObject($event)
	->setObjectName($monogram)
	->setHeader($event->getName())
	->setHref($event->getURI());

	$item->addAttribute($event->renderEventDate($viewer, false));

	if ($event->getIsCancelled()) {
	$item->setDisabled(true);
	}

	$status_icon = $event->getDisplayIcon($viewer);
	$status_color = $event->getDisplayIconColor($viewer);
	$status_label = $event->getDisplayIconLabel($viewer);

	$item->setStatusIcon("{$status_icon} {$status_color}", $status_label);

	$host = pht(
	'Hosted by %s',
	$viewer->renderHandle($event->getHostPHID()));
	$item->addByline($host);

	$list->addItem($item);
	}

	return $this->newResultView()
	->setObjectList($list)
	->setNoDataString(pht('No events found.'));
	}

	private function buildCalendarMonthView(
	array $events,
	PhabricatorSavedQuery $query) {
	assert_instances_of($events, 'PhabricatorCalendarEvent');

	$viewer = $this->requireViewer();
	$now = PhabricatorTime::getNow();

	list($start_year, $start_month) =
	$this->getDisplayYearAndMonthAndDay(
	$this->getQueryDateFrom($query)->getEpoch(),
	$this->getQueryDateTo($query)->getEpoch(),
	$query->getParameter('display'));

	$now_year = phabricator_format_local_time($now, $viewer, 'Y');
	$now_month = phabricator_format_local_time($now, $viewer, 'm');
	$now_day = phabricator_format_local_time($now, $viewer, 'j');

	if ($start_month == $now_month && $start_year == $now_year) {
	$month_view = new PHUICalendarMonthView(
	$this->getQueryDateFrom($query),
	$this->getQueryDateTo($query),
	$start_month,
	$start_year,
	$now_day);
	} else {
	$month_view = new PHUICalendarMonthView(
	$this->getQueryDateFrom($query),
	$this->getQueryDateTo($query),
	$start_month,
	$start_year);
	}

	$month_view->setUser($viewer);

	foreach ($events as $event) {
	$epoch_min = $event->getStartDateTimeEpoch();
	$epoch_max = $event->getEndDateTimeEpoch();

	$is_invited = $event->isRSVPInvited($viewer->getPHID());

	$event_view = id(new AphrontCalendarEventView())
	->setHostPHID($event->getHostPHID())
	->setEpochRange($epoch_min, $epoch_max)
	->setIsCancelled($event->getIsCancelled())
	->setName($event->getName())
	->setURI($event->getURI())
	->setIsAllDay($event->getIsAllDay())
	->setIcon($event->getDisplayIcon($viewer))
	->setViewerIsInvited($is_invited)
	->setDatetimeSummary($event->renderEventDate($viewer, true))
	->setIconColor($event->getDisplayIconColor($viewer));

	$month_view->addEvent($event_view);
	}

	$month_view->setBrowseURI(
	$this->getURI('query/'.$query->getQueryKey().'/'));

	$from = $this->getQueryDateFrom($query)->getDateTime();

	$crumbs = array();
	$crumbs[] = id(new PHUICrumbView())
	->setName($from->format('F Y'));

	$header = id(new PHUIHeaderView())
	->setProfileHeader(true)
	->setHeader($from->format('F Y'));

	return $this->newResultView($month_view)
	->setCrumbs($crumbs)
	->setHeader($header);
	}

	private function buildCalendarDayView(
	array $events,
	PhabricatorSavedQuery $query) {

	$viewer = $this->requireViewer();

	list($start_year, $start_month, $start_day) =
	$this->getDisplayYearAndMonthAndDay(
	$this->getQueryDateFrom($query)->getEpoch(),
	$this->getQueryDateTo($query)->getEpoch(),
	$query->getParameter('display'));

	$day_view = id(new PHUICalendarDayView(
	$this->getQueryDateFrom($query),
	$this->getQueryDateTo($query),
	$start_year,
	$start_month,
	$start_day))
	->setQuery($query->getQueryKey());

	$day_view->setUser($viewer);

	$phids = mpull($events, 'getHostPHID');

	foreach ($events as $event) {
	$can_edit = PhabricatorPolicyFilter::hasCapability(
	$viewer,
	$event,
	PhabricatorPolicyCapability::CAN_EDIT);

	$epoch_min = $event->getStartDateTimeEpoch();
	$epoch_max = $event->getEndDateTimeEpoch();

	$status_icon = $event->getDisplayIcon($viewer);
	$status_color = $event->getDisplayIconColor($viewer);

	$event_view = id(new AphrontCalendarEventView())
	->setCanEdit($can_edit)
	->setEventID($event->getID())
	->setEpochRange($epoch_min, $epoch_max)
	->setIsAllDay($event->getIsAllDay())
	->setIcon($status_icon)
	->setIconColor($status_color)
	->setName($event->getName())
	->setURI($event->getURI())
	->setDatetimeSummary($event->renderEventDate($viewer, true))
	->setIsCancelled($event->getIsCancelled());

	$day_view->addEvent($event_view);
	}

	$browse_uri = $this->getURI('query/'.$query->getQueryKey().'/');
	$day_view->setBrowseURI($browse_uri);

	$from = $this->getQueryDateFrom($query)->getDateTime();
	$month_uri = $browse_uri.$from->format('Y/m/');

	$crumbs = array(
	id(new PHUICrumbView())
	->setName($from->format('F Y'))
	->setHref($month_uri),
	id(new PHUICrumbView())
	->setName($from->format('D jS')),
	);

	$header = id(new PHUIHeaderView())
	->setProfileHeader(true)
	->setHeader($from->format('D, F jS'));

	return $this->newResultView($day_view)
	->setCrumbs($crumbs)
	->setHeader($header);
	}

	private function getDisplayYearAndMonthAndDay(
	$range_start,
	$range_end,
	$display) {

	$viewer = $this->requireViewer();
	$epoch = null;

	if ($this->calendarYear && $this->calendarMonth) {
	$start_year = $this->calendarYear;
	$start_month = $this->calendarMonth;
	$start_day = $this->calendarDay ? $this->calendarDay : 1;
	} else {
	if ($range_start) {
	$epoch = $range_start;
	} else if ($range_end) {
	$epoch = $range_end;
	} else {
	$epoch = time();
	}
	if ($display == 'month') {
	$day = 1;
	} else {
	$day = phabricator_format_local_time($epoch, $viewer, 'd');
	}
	$start_year = phabricator_format_local_time($epoch, $viewer, 'Y');
	$start_month = phabricator_format_local_time($epoch, $viewer, 'm');
	$start_day = $day;
	}
	return array($start_year, $start_month, $start_day);
	}

	public function getPageSize(PhabricatorSavedQuery $saved) {
	if ($this->isMonthView($saved) \|\| $this->isDayView($saved)) {
	return $saved->getParameter('limit', 1000);
	} else {
	return $saved->getParameter('limit', 100);
	}
	}

	private function getQueryDateFrom(PhabricatorSavedQuery $saved) {
	if ($this->calendarYear && $this->calendarMonth) {
	$viewer = $this->requireViewer();

	$start_year = $this->calendarYear;
	$start_month = $this->calendarMonth;
	$start_day = $this->calendarDay ? $this->calendarDay : 1;

	return AphrontFormDateControlValue::newFromDictionary(
	$viewer,
	array(
	'd' => "{$start_year}-{$start_month}-{$start_day}",
	));
	}

	return $this->getQueryDate($saved, 'rangeStart');
	}

	private function getQueryDateTo(PhabricatorSavedQuery $saved) {
	return $this->getQueryDate($saved, 'rangeEnd');
	}

	private function getQueryDate(PhabricatorSavedQuery $saved, $key) {
	$viewer = $this->requireViewer();

	$wild = $saved->getParameter($key);
	return $this->getSafeDate($wild);
	}

	private function getSafeDate($value) {
	$viewer = $this->requireViewer();
	if ($value) {
	// ideally this would be consistent and always pass in the same type
	if ($value instanceof AphrontFormDateControlValue) {
	return $value;
	} else {
	$value = AphrontFormDateControlValue::newFromWild($viewer, $value);
	}
	} else {
	$value = AphrontFormDateControlValue::newFromEpoch(
	$viewer,
	PhabricatorTime::getTodayMidnightDateTime($viewer)->format('U'));
	$value->setEnabled(false);
	}

	$value->setOptional(true);

	return $value;
	}

	private function isMonthView(PhabricatorSavedQuery $query) {
	if ($this->isDayView($query)) {
	return false;
	}
	if ($query->getParameter('display') == 'month') {
	return true;
	}
	}

	private function isDayView(PhabricatorSavedQuery $query) {
	if ($query->getParameter('display') == 'day') {
	return true;
	}
	if ($this->calendarDay) {
	return true;
	}

	return false;
	}

	public function newUseResultsActions(PhabricatorSavedQuery $saved) {
	$viewer = $this->requireViewer();
	$can_export = $viewer->isLoggedIn();

	return array(
	id(new PhabricatorActionView())
	->setIcon('fa-download')
	->setName(pht('Export Query as .ics'))
	->setDisabled(!$can_export)
	->setHref('/calendar/export/edit/?queryKey='.$saved->getQueryKey()),
	);
	}


	private function newResultView($content = null) {
	// If we aren't rendering a dashboard panel, activate global drag-and-drop
	// so you can import ".ics" files by dropping them directly onto the
	// calendar.
	if (!$this->isPanelContext()) {
	$drop_upload = id(new PhabricatorGlobalUploadTargetView())
	->setViewer($this->requireViewer())
	->setHintText("\xE2\x87\xAA ".pht('Drop .ics Files to Import'))
	->setSubmitURI('/calendar/import/drop/')
	->setViewPolicy(PhabricatorPolicies::POLICY_NOONE);

	$content = array(
	$drop_upload,
	$content,
	);
	}

	return id(new PhabricatorApplicationSearchResultView())
	->setContent($content);
	}

	}

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