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	diff --git a/src/applications/people/storage/PhabricatorUser.php b/src/applications/people/storage/PhabricatorUser.php
	index fa6dc08e9f..1560f9f65e 100644
	--- a/src/applications/people/storage/PhabricatorUser.php
	+++ b/src/applications/people/storage/PhabricatorUser.php
	@@ -1,1462 +1,1482 @@
	<?php

	/**
	* @task availability Availability
	* @task image-cache Profile Image Cache
	* @task factors Multi-Factor Authentication
	* @task handles Managing Handles
	* @task settings Settings
	* @task cache User Cache
	*/
	final class PhabricatorUser
	extends PhabricatorUserDAO
	implements
	PhutilPerson,
	PhabricatorPolicyInterface,
	PhabricatorCustomFieldInterface,
	PhabricatorDestructibleInterface,
	PhabricatorSSHPublicKeyInterface,
	PhabricatorFlaggableInterface,
	PhabricatorApplicationTransactionInterface,
	PhabricatorFulltextInterface,
	PhabricatorFerretInterface,
	PhabricatorConduitResultInterface,
	PhabricatorAuthPasswordHashInterface {

	const SESSION_TABLE = 'phabricator_session';
	const NAMETOKEN_TABLE = 'user_nametoken';
	const MAXIMUM_USERNAME_LENGTH = 64;

	protected $userName;
	protected $realName;
	protected $profileImagePHID;
	protected $defaultProfileImagePHID;
	protected $defaultProfileImageVersion;
	protected $availabilityCache;
	protected $availabilityCacheTTL;

	protected $conduitCertificate;

	protected $isSystemAgent = 0;
	protected $isMailingList = 0;
	protected $isAdmin = 0;
	protected $isDisabled = 0;
	protected $isEmailVerified = 0;
	protected $isApproved = 0;
	protected $isEnrolledInMultiFactor = 0;

	protected $accountSecret;

	private $profile = null;
	private $availability = self::ATTACHABLE;
	private $preferences = null;
	private $omnipotent = false;
	private $customFields = self::ATTACHABLE;
	private $badgePHIDs = self::ATTACHABLE;

	private $alternateCSRFString = self::ATTACHABLE;
	private $session = self::ATTACHABLE;
	private $rawCacheData = array();
	private $usableCacheData = array();

	private $handlePool;
	private $csrfSalt;

	private $settingCacheKeys = array();
	private $settingCache = array();
	private $allowInlineCacheGeneration;
	private $conduitClusterToken = self::ATTACHABLE;

	protected function readField($field) {
	switch ($field) {
	// Make sure these return booleans.
	case 'isAdmin':
	return (bool)$this->isAdmin;
	case 'isDisabled':
	return (bool)$this->isDisabled;
	case 'isSystemAgent':
	return (bool)$this->isSystemAgent;
	case 'isMailingList':
	return (bool)$this->isMailingList;
	case 'isEmailVerified':
	return (bool)$this->isEmailVerified;
	case 'isApproved':
	return (bool)$this->isApproved;
	default:
	return parent::readField($field);
	}
	}


	/**
	* Is this a live account which has passed required approvals? Returns true
	* if this is an enabled, verified (if required), approved (if required)
	* account, and false otherwise.
	*
	* @return bool True if this is a standard, usable account.
	*/
	public function isUserActivated() {
	if (!$this->isLoggedIn()) {
	return false;
	}

	if ($this->isOmnipotent()) {
	return true;
	}

	if ($this->getIsDisabled()) {
	return false;
	}

	if (!$this->getIsApproved()) {
	return false;
	}

	if (PhabricatorUserEmail::isEmailVerificationRequired()) {
	if (!$this->getIsEmailVerified()) {
	return false;
	}
	}

	return true;
	}


	/**
	* Is this a user who we can reasonably expect to respond to requests?
	*
	* This is used to provide a grey "disabled/unresponsive" dot cue when
	* rendering handles and tags, so it isn't a surprise if you get ignored
	* when you ask things of users who will not receive notifications or could
	* not respond to them (because they are disabled, unapproved, do not have
	* verified email addresses, etc).
	*
	* @return bool True if this user can receive and respond to requests from
	* other humans.
	*/
	public function isResponsive() {
	if (!$this->isUserActivated()) {
	return false;
	}

	if (!$this->getIsEmailVerified()) {
	return false;
	}

	return true;
	}


	public function canEstablishWebSessions() {
	if ($this->getIsMailingList()) {
	return false;
	}

	if ($this->getIsSystemAgent()) {
	return false;
	}

	return true;
	}

	public function canEstablishAPISessions() {
	if ($this->getIsDisabled()) {
	return false;
	}

	// Intracluster requests are permitted even if the user is logged out:
	// in particular, public users are allowed to issue intracluster requests
	// when browsing Diffusion.
	if (PhabricatorEnv::isClusterRemoteAddress()) {
	if (!$this->isLoggedIn()) {
	return true;
	}
	}

	if (!$this->isUserActivated()) {
	return false;
	}

	if ($this->getIsMailingList()) {
	return false;
	}

	return true;
	}

	public function canEstablishSSHSessions() {
	if (!$this->isUserActivated()) {
	return false;
	}

	if ($this->getIsMailingList()) {
	return false;
	}

	return true;
	}

	/**
	* Returns `true` if this is a standard user who is logged in. Returns `false`
	* for logged out, anonymous, or external users.
	*
	* @return bool `true` if the user is a standard user who is logged in with
	* a normal session.
	*/
	public function getIsStandardUser() {
	$type_user = PhabricatorPeopleUserPHIDType::TYPECONST;
	return $this->getPHID() && (phid_get_type($this->getPHID()) == $type_user);
	}

	protected function getConfiguration() {
	return array(
	self::CONFIG_AUX_PHID => true,
	self::CONFIG_COLUMN_SCHEMA => array(
	'userName' => 'sort64',
	'realName' => 'text128',
	'profileImagePHID' => 'phid?',
	'conduitCertificate' => 'text255',
	'isSystemAgent' => 'bool',
	'isMailingList' => 'bool',
	'isDisabled' => 'bool',
	'isAdmin' => 'bool',
	'isEmailVerified' => 'uint32',
	'isApproved' => 'uint32',
	'accountSecret' => 'bytes64',
	'isEnrolledInMultiFactor' => 'bool',
	'availabilityCache' => 'text255?',
	'availabilityCacheTTL' => 'uint32?',
	'defaultProfileImagePHID' => 'phid?',
	'defaultProfileImageVersion' => 'text64?',
	),
	self::CONFIG_KEY_SCHEMA => array(
	'key_phid' => null,
	'phid' => array(
	'columns' => array('phid'),
	'unique' => true,
	),
	'userName' => array(
	'columns' => array('userName'),
	'unique' => true,
	),
	'realName' => array(
	'columns' => array('realName'),
	),
	'key_approved' => array(
	'columns' => array('isApproved'),
	),
	),
	self::CONFIG_NO_MUTATE => array(
	'availabilityCache' => true,
	'availabilityCacheTTL' => true,
	),
	) + parent::getConfiguration();
	}

	public function generatePHID() {
	return PhabricatorPHID::generateNewPHID(
	PhabricatorPeopleUserPHIDType::TYPECONST);
	}

	public function getMonogram() {
	return '@'.$this->getUsername();
	}

	public function isLoggedIn() {
	return !($this->getPHID() === null);
	}

	public function saveWithoutIndex() {
	return parent::save();
	}

	public function save() {
	if (!$this->getConduitCertificate()) {
	$this->setConduitCertificate($this->generateConduitCertificate());
	}

	if (!strlen($this->getAccountSecret())) {
	$this->setAccountSecret(Filesystem::readRandomCharacters(64));
	}

	$result = $this->saveWithoutIndex();

	if ($this->profile) {
	$this->profile->save();
	}

	$this->updateNameTokens();

	PhabricatorSearchWorker::queueDocumentForIndexing($this->getPHID());

	return $result;
	}

	public function attachSession(PhabricatorAuthSession $session) {
	$this->session = $session;
	return $this;
	}

	public function getSession() {
	return $this->assertAttached($this->session);
	}

	public function hasSession() {
	return ($this->session !== self::ATTACHABLE);
	}

	public function hasHighSecuritySession() {
	if (!$this->hasSession()) {
	return false;
	}

	return $this->getSession()->isHighSecuritySession();
	}

	private function generateConduitCertificate() {
	return Filesystem::readRandomCharacters(255);
	}

	const EMAIL_CYCLE_FREQUENCY = 86400;
	const EMAIL_TOKEN_LENGTH = 24;

	+ /**
	+ * This function removes the blurb from a profile.
	+ * This is an incredibly broad hammer to handle some spam on the upstream,
	+ * which will be refined later.
	+ *
	+ * @return void
	+ */
	+ private function cleanUpProfile() {
	+ $this->profile->setBlurb('');
	+ }
	+
	public function getUserProfile() {
	return $this->assertAttached($this->profile);
	}

	public function attachUserProfile(PhabricatorUserProfile $profile) {
	$this->profile = $profile;
	+
	+ if ($this->isDisabled) {
	+ $this->cleanUpProfile();
	+ }
	+
	return $this;
	}

	public function loadUserProfile() {
	if ($this->profile) {
	return $this->profile;
	}

	$profile_dao = new PhabricatorUserProfile();
	$this->profile = $profile_dao->loadOneWhere('userPHID = %s',
	$this->getPHID());

	if (!$this->profile) {
	$this->profile = PhabricatorUserProfile::initializeNewProfile($this);
	}

	+ if ($this->isDisabled) {
	+ $this->cleanUpProfile();
	+ }
	+
	return $this->profile;
	}

	public function loadPrimaryEmailAddress() {
	$email = $this->loadPrimaryEmail();
	if (!$email) {
	throw new Exception(pht('User has no primary email address!'));
	}
	return $email->getAddress();
	}

	public function loadPrimaryEmail() {
	return id(new PhabricatorUserEmail())->loadOneWhere(
	'userPHID = %s AND isPrimary = 1',
	$this->getPHID());
	}


	/* -( Settings )----------------------------------------------------------- */


	public function getUserSetting($key) {
	// NOTE: We store available keys and cached values separately to make it
	// faster to check for `null` in the cache, which is common.
	if (isset($this->settingCacheKeys[$key])) {
	return $this->settingCache[$key];
	}

	$settings_key = PhabricatorUserPreferencesCacheType::KEY_PREFERENCES;
	if ($this->getPHID()) {
	$settings = $this->requireCacheData($settings_key);
	} else {
	$settings = $this->loadGlobalSettings();
	}

	if (array_key_exists($key, $settings)) {
	$value = $settings[$key];
	return $this->writeUserSettingCache($key, $value);
	}

	$cache = PhabricatorCaches::getRuntimeCache();
	$cache_key = "settings.defaults({$key})";
	$cache_map = $cache->getKeys(array($cache_key));

	if ($cache_map) {
	$value = $cache_map[$cache_key];
	} else {
	$defaults = PhabricatorSetting::getAllSettings();
	if (isset($defaults[$key])) {
	$value = id(clone $defaults[$key])
	->setViewer($this)
	->getSettingDefaultValue();
	} else {
	$value = null;
	}

	$cache->setKey($cache_key, $value);
	}

	return $this->writeUserSettingCache($key, $value);
	}


	/**
	* Test if a given setting is set to a particular value.
	*
	* @param const Setting key.
	* @param wild Value to compare.
	* @return bool True if the setting has the specified value.
	* @task settings
	*/
	public function compareUserSetting($key, $value) {
	$actual = $this->getUserSetting($key);
	return ($actual == $value);
	}

	private function writeUserSettingCache($key, $value) {
	$this->settingCacheKeys[$key] = true;
	$this->settingCache[$key] = $value;
	return $value;
	}

	public function getTranslation() {
	return $this->getUserSetting(PhabricatorTranslationSetting::SETTINGKEY);
	}

	public function getTimezoneIdentifier() {
	return $this->getUserSetting(PhabricatorTimezoneSetting::SETTINGKEY);
	}

	public static function getGlobalSettingsCacheKey() {
	return 'user.settings.globals.v1';
	}

	private function loadGlobalSettings() {
	$cache_key = self::getGlobalSettingsCacheKey();
	$cache = PhabricatorCaches::getMutableStructureCache();

	$settings = $cache->getKey($cache_key);
	if (!$settings) {
	$preferences = PhabricatorUserPreferences::loadGlobalPreferences($this);
	$settings = $preferences->getPreferences();
	$cache->setKey($cache_key, $settings);
	}

	return $settings;
	}


	/**
	* Override the user's timezone identifier.
	*
	* This is primarily useful for unit tests.
	*
	* @param string New timezone identifier.
	* @return this
	* @task settings
	*/
	public function overrideTimezoneIdentifier($identifier) {
	$timezone_key = PhabricatorTimezoneSetting::SETTINGKEY;
	$this->settingCacheKeys[$timezone_key] = true;
	$this->settingCache[$timezone_key] = $identifier;
	return $this;
	}

	public function getGender() {
	return $this->getUserSetting(PhabricatorPronounSetting::SETTINGKEY);
	}

	/**
	* Populate the nametoken table, which used to fetch typeahead results. When
	* a user types "linc", we want to match "Abraham Lincoln" from on-demand
	* typeahead sources. To do this, we need a separate table of name fragments.
	*/
	public function updateNameTokens() {
	$table = self::NAMETOKEN_TABLE;
	$conn_w = $this->establishConnection('w');

	$tokens = PhabricatorTypeaheadDatasource::tokenizeString(
	$this->getUserName().' '.$this->getRealName());

	$sql = array();
	foreach ($tokens as $token) {
	$sql[] = qsprintf(
	$conn_w,
	'(%d, %s)',
	$this->getID(),
	$token);
	}

	queryfx(
	$conn_w,
	'DELETE FROM %T WHERE userID = %d',
	$table,
	$this->getID());
	if ($sql) {
	queryfx(
	$conn_w,
	'INSERT INTO %T (userID, token) VALUES %LQ',
	$table,
	$sql);
	}
	}

	public static function describeValidUsername() {
	return pht(
	'Usernames must contain only numbers, letters, period, underscore, and '.
	'hyphen, and can not end with a period. They must have no more than %d '.
	'characters.',
	new PhutilNumber(self::MAXIMUM_USERNAME_LENGTH));
	}

	public static function validateUsername($username) {
	// NOTE: If you update this, make sure to update:
	//
	// - Remarkup rule for @mentions.
	// - Routing rule for "/p/username/".
	// - Unit tests, obviously.
	// - describeValidUsername() method, above.

	if (strlen($username) > self::MAXIMUM_USERNAME_LENGTH) {
	return false;
	}

	return (bool)preg_match('/^[a-zA-Z0-9._-]*[a-zA-Z0-9_-]\z/', $username);
	}

	public static function getDefaultProfileImageURI() {
	return celerity_get_resource_uri('/rsrc/image/avatar.png');
	}

	public function getProfileImageURI() {
	$uri_key = PhabricatorUserProfileImageCacheType::KEY_URI;
	return $this->requireCacheData($uri_key);
	}

	public function getUnreadNotificationCount() {
	$notification_key = PhabricatorUserNotificationCountCacheType::KEY_COUNT;
	return $this->requireCacheData($notification_key);
	}

	public function getUnreadMessageCount() {
	$message_key = PhabricatorUserMessageCountCacheType::KEY_COUNT;
	return $this->requireCacheData($message_key);
	}

	public function getRecentBadgeAwards() {
	$badges_key = PhabricatorUserBadgesCacheType::KEY_BADGES;
	return $this->requireCacheData($badges_key);
	}

	public function getFullName() {
	if (strlen($this->getRealName())) {
	return $this->getUsername().' ('.$this->getRealName().')';
	} else {
	return $this->getUsername();
	}
	}

	public function getTimeZone() {
	return new DateTimeZone($this->getTimezoneIdentifier());
	}

	public function getTimeZoneOffset() {
	$timezone = $this->getTimeZone();
	$now = new DateTime('@'.PhabricatorTime::getNow());
	$offset = $timezone->getOffset($now);

	// Javascript offsets are in minutes and have the opposite sign.
	$offset = -(int)($offset / 60);

	return $offset;
	}

	public function getTimeZoneOffsetInHours() {
	$offset = $this->getTimeZoneOffset();
	$offset = (int)round($offset / 60);
	$offset = -$offset;

	return $offset;
	}

	public function formatShortDateTime($when, $now = null) {
	if ($now === null) {
	$now = PhabricatorTime::getNow();
	}

	try {
	$when = new DateTime('@'.$when);
	$now = new DateTime('@'.$now);
	} catch (Exception $ex) {
	return null;
	}

	$zone = $this->getTimeZone();

	$when->setTimeZone($zone);
	$now->setTimeZone($zone);

	if ($when->format('Y') !== $now->format('Y')) {
	// Different year, so show "Feb 31 2075".
	$format = 'M j Y';
	} else if ($when->format('Ymd') !== $now->format('Ymd')) {
	// Same year but different month and day, so show "Feb 31".
	$format = 'M j';
	} else {
	// Same year, month and day so show a time of day.
	$pref_time = PhabricatorTimeFormatSetting::SETTINGKEY;
	$format = $this->getUserSetting($pref_time);
	}

	return $when->format($format);
	}

	public function __toString() {
	return $this->getUsername();
	}

	public static function loadOneWithEmailAddress($address) {
	$email = id(new PhabricatorUserEmail())->loadOneWhere(
	'address = %s',
	$address);
	if (!$email) {
	return null;
	}
	return id(new PhabricatorUser())->loadOneWhere(
	'phid = %s',
	$email->getUserPHID());
	}

	public function getDefaultSpacePHID() {
	// TODO: We might let the user switch which space they're "in" later on;
	// for now just use the global space if one exists.

	// If the viewer has access to the default space, use that.
	$spaces = PhabricatorSpacesNamespaceQuery::getViewerActiveSpaces($this);
	foreach ($spaces as $space) {
	if ($space->getIsDefaultNamespace()) {
	return $space->getPHID();
	}
	}

	// Otherwise, use the space with the lowest ID that they have access to.
	// This just tends to keep the default stable and predictable over time,
	// so adding a new space won't change behavior for users.
	if ($spaces) {
	$spaces = msort($spaces, 'getID');
	return head($spaces)->getPHID();
	}

	return null;
	}


	public function hasConduitClusterToken() {
	return ($this->conduitClusterToken !== self::ATTACHABLE);
	}

	public function attachConduitClusterToken(PhabricatorConduitToken $token) {
	$this->conduitClusterToken = $token;
	return $this;
	}

	public function getConduitClusterToken() {
	return $this->assertAttached($this->conduitClusterToken);
	}


	/* -( Availability )------------------------------------------------------- */


	/**
	* @task availability
	*/
	public function attachAvailability(array $availability) {
	$this->availability = $availability;
	return $this;
	}


	/**
	* Get the timestamp the user is away until, if they are currently away.
	*
	* @return int\|null Epoch timestamp, or `null` if the user is not away.
	* @task availability
	*/
	public function getAwayUntil() {
	$availability = $this->availability;

	$this->assertAttached($availability);
	if (!$availability) {
	return null;
	}

	return idx($availability, 'until');
	}


	public function getDisplayAvailability() {
	$availability = $this->availability;

	$this->assertAttached($availability);
	if (!$availability) {
	return null;
	}

	$busy = PhabricatorCalendarEventInvitee::AVAILABILITY_BUSY;

	return idx($availability, 'availability', $busy);
	}


	public function getAvailabilityEventPHID() {
	$availability = $this->availability;

	$this->assertAttached($availability);
	if (!$availability) {
	return null;
	}

	return idx($availability, 'eventPHID');
	}


	/**
	* Get cached availability, if present.
	*
	* @return wild\|null Cache data, or null if no cache is available.
	* @task availability
	*/
	public function getAvailabilityCache() {
	$now = PhabricatorTime::getNow();
	if ($this->availabilityCacheTTL <= $now) {
	return null;
	}

	try {
	return phutil_json_decode($this->availabilityCache);
	} catch (Exception $ex) {
	return null;
	}
	}


	/**
	* Write to the availability cache.
	*
	* @param wild Availability cache data.
	* @param int\|null Cache TTL.
	* @return this
	* @task availability
	*/
	public function writeAvailabilityCache(array $availability, $ttl) {
	if (PhabricatorEnv::isReadOnly()) {
	return $this;
	}

	$unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
	queryfx(
	$this->establishConnection('w'),
	'UPDATE %T SET availabilityCache = %s, availabilityCacheTTL = %nd
	WHERE id = %d',
	$this->getTableName(),
	phutil_json_encode($availability),
	$ttl,
	$this->getID());
	unset($unguarded);

	return $this;
	}


	/* -( Multi-Factor Authentication )---------------------------------------- */


	/**
	* Update the flag storing this user's enrollment in multi-factor auth.
	*
	* With certain settings, we need to check if a user has MFA on every page,
	* so we cache MFA enrollment on the user object for performance. Calling this
	* method synchronizes the cache by examining enrollment records. After
	* updating the cache, use @{method:getIsEnrolledInMultiFactor} to check if
	* the user is enrolled.
	*
	* This method should be called after any changes are made to a given user's
	* multi-factor configuration.
	*
	* @return void
	* @task factors
	*/
	public function updateMultiFactorEnrollment() {
	$factors = id(new PhabricatorAuthFactorConfigQuery())
	->setViewer($this)
	->withUserPHIDs(array($this->getPHID()))
	->withFactorProviderStatuses(
	array(
	PhabricatorAuthFactorProviderStatus::STATUS_ACTIVE,
	PhabricatorAuthFactorProviderStatus::STATUS_DEPRECATED,
	))
	->execute();

	$enrolled = count($factors) ? 1 : 0;
	if ($enrolled !== $this->isEnrolledInMultiFactor) {
	$unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
	queryfx(
	$this->establishConnection('w'),
	'UPDATE %T SET isEnrolledInMultiFactor = %d WHERE id = %d',
	$this->getTableName(),
	$enrolled,
	$this->getID());
	unset($unguarded);

	$this->isEnrolledInMultiFactor = $enrolled;
	}
	}


	/**
	* Check if the user is enrolled in multi-factor authentication.
	*
	* Enrolled users have one or more multi-factor authentication sources
	* attached to their account. For performance, this value is cached. You
	* can use @{method:updateMultiFactorEnrollment} to update the cache.
	*
	* @return bool True if the user is enrolled.
	* @task factors
	*/
	public function getIsEnrolledInMultiFactor() {
	return $this->isEnrolledInMultiFactor;
	}


	/* -( Omnipotence )-------------------------------------------------------- */


	/**
	* Returns true if this user is omnipotent. Omnipotent users bypass all policy
	* checks.
	*
	* @return bool True if the user bypasses policy checks.
	*/
	public function isOmnipotent() {
	return $this->omnipotent;
	}


	/**
	* Get an omnipotent user object for use in contexts where there is no acting
	* user, notably daemons.
	*
	* @return PhabricatorUser An omnipotent user.
	*/
	public static function getOmnipotentUser() {
	static $user = null;
	if (!$user) {
	$user = new PhabricatorUser();
	$user->omnipotent = true;
	$user->makeEphemeral();
	}
	return $user;
	}


	/**
	* Get a scalar string identifying this user.
	*
	* This is similar to using the PHID, but distinguishes between omnipotent
	* and public users explicitly. This allows safe construction of cache keys
	* or cache buckets which do not conflate public and omnipotent users.
	*
	* @return string Scalar identifier.
	*/
	public function getCacheFragment() {
	if ($this->isOmnipotent()) {
	return 'u.omnipotent';
	}

	$phid = $this->getPHID();
	if ($phid) {
	return 'u.'.$phid;
	}

	return 'u.public';
	}


	/* -( Managing Handles )--------------------------------------------------- */


	/**
	* Get a @{class:PhabricatorHandleList} which benefits from this viewer's
	* internal handle pool.
	*
	* @param list<phid> List of PHIDs to load.
	* @return PhabricatorHandleList Handle list object.
	* @task handle
	*/
	public function loadHandles(array $phids) {
	if ($this->handlePool === null) {
	$this->handlePool = id(new PhabricatorHandlePool())
	->setViewer($this);
	}

	return $this->handlePool->newHandleList($phids);
	}


	/**
	* Get a @{class:PHUIHandleView} for a single handle.
	*
	* This benefits from the viewer's internal handle pool.
	*
	* @param phid PHID to render a handle for.
	* @return PHUIHandleView View of the handle.
	* @task handle
	*/
	public function renderHandle($phid) {
	return $this->loadHandles(array($phid))->renderHandle($phid);
	}


	/**
	* Get a @{class:PHUIHandleListView} for a list of handles.
	*
	* This benefits from the viewer's internal handle pool.
	*
	* @param list<phid> List of PHIDs to render.
	* @return PHUIHandleListView View of the handles.
	* @task handle
	*/
	public function renderHandleList(array $phids) {
	return $this->loadHandles($phids)->renderList();
	}

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

	public function getBadgePHIDs() {
	return $this->assertAttached($this->badgePHIDs);
	}

	/* -( CSRF )--------------------------------------------------------------- */


	public function getCSRFToken() {
	if ($this->isOmnipotent()) {
	// We may end up here when called from the daemons. The omnipotent user
	// has no meaningful CSRF token, so just return `null`.
	return null;
	}

	return $this->newCSRFEngine()
	->newToken();
	}

	public function validateCSRFToken($token) {
	return $this->newCSRFengine()
	->isValidToken($token);
	}

	public function getAlternateCSRFString() {
	return $this->assertAttached($this->alternateCSRFString);
	}

	public function attachAlternateCSRFString($string) {
	$this->alternateCSRFString = $string;
	return $this;
	}

	private function newCSRFEngine() {
	if ($this->getPHID()) {
	$vec = $this->getPHID().$this->getAccountSecret();
	} else {
	$vec = $this->getAlternateCSRFString();
	}

	if ($this->hasSession()) {
	$vec = $vec.$this->getSession()->getSessionKey();
	}

	$engine = new PhabricatorAuthCSRFEngine();

	if ($this->csrfSalt === null) {
	$this->csrfSalt = $engine->newSalt();
	}

	$engine
	->setSalt($this->csrfSalt)
	->setSecret(new PhutilOpaqueEnvelope($vec));

	return $engine;
	}


	/* -( PhabricatorPolicyInterface )----------------------------------------- */


	public function getCapabilities() {
	return array(
	PhabricatorPolicyCapability::CAN_VIEW,
	PhabricatorPolicyCapability::CAN_EDIT,
	);
	}

	public function getPolicy($capability) {
	switch ($capability) {
	case PhabricatorPolicyCapability::CAN_VIEW:
	return PhabricatorPolicies::POLICY_PUBLIC;
	case PhabricatorPolicyCapability::CAN_EDIT:
	if ($this->getIsSystemAgent() \|\| $this->getIsMailingList()) {
	return PhabricatorPolicies::POLICY_ADMIN;
	} else {
	return PhabricatorPolicies::POLICY_NOONE;
	}
	}
	}

	public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
	return $this->getPHID() && ($viewer->getPHID() === $this->getPHID());
	}

	public function describeAutomaticCapability($capability) {
	switch ($capability) {
	case PhabricatorPolicyCapability::CAN_EDIT:
	return pht('Only you can edit your information.');
	default:
	return null;
	}
	}


	/* -( PhabricatorCustomFieldInterface )------------------------------------ */


	public function getCustomFieldSpecificationForRole($role) {
	return PhabricatorEnv::getEnvConfig('user.fields');
	}

	public function getCustomFieldBaseClass() {
	return 'PhabricatorUserCustomField';
	}

	public function getCustomFields() {
	return $this->assertAttached($this->customFields);
	}

	public function attachCustomFields(PhabricatorCustomFieldAttachment $fields) {
	$this->customFields = $fields;
	return $this;
	}


	/* -( PhabricatorDestructibleInterface )----------------------------------- */


	public function destroyObjectPermanently(
	PhabricatorDestructionEngine $engine) {

	$viewer = $engine->getViewer();

	$this->openTransaction();
	$this->delete();

	$externals = id(new PhabricatorExternalAccountQuery())
	->setViewer($viewer)
	->withUserPHIDs(array($this->getPHID()))
	->newIterator();
	foreach ($externals as $external) {
	$engine->destroyObject($external);
	}

	$prefs = id(new PhabricatorUserPreferencesQuery())
	->setViewer($viewer)
	->withUsers(array($this))
	->execute();
	foreach ($prefs as $pref) {
	$engine->destroyObject($pref);
	}

	$profiles = id(new PhabricatorUserProfile())->loadAllWhere(
	'userPHID = %s',
	$this->getPHID());
	foreach ($profiles as $profile) {
	$profile->delete();
	}

	$keys = id(new PhabricatorAuthSSHKeyQuery())
	->setViewer($viewer)
	->withObjectPHIDs(array($this->getPHID()))
	->execute();
	foreach ($keys as $key) {
	$engine->destroyObject($key);
	}

	$emails = id(new PhabricatorUserEmail())->loadAllWhere(
	'userPHID = %s',
	$this->getPHID());
	foreach ($emails as $email) {
	$engine->destroyObject($email);
	}

	$sessions = id(new PhabricatorAuthSession())->loadAllWhere(
	'userPHID = %s',
	$this->getPHID());
	foreach ($sessions as $session) {
	$session->delete();
	}

	$factors = id(new PhabricatorAuthFactorConfig())->loadAllWhere(
	'userPHID = %s',
	$this->getPHID());
	foreach ($factors as $factor) {
	$factor->delete();
	}

	$this->saveTransaction();
	}


	/* -( PhabricatorSSHPublicKeyInterface )----------------------------------- */


	public function getSSHPublicKeyManagementURI(PhabricatorUser $viewer) {
	if ($viewer->getPHID() == $this->getPHID()) {
	// If the viewer is managing their own keys, take them to the normal
	// panel.
	return '/settings/panel/ssh/';
	} else {
	// Otherwise, take them to the administrative panel for this user.
	return '/settings/user/'.$this->getUsername().'/page/ssh/';
	}
	}

	public function getSSHKeyDefaultName() {
	return 'id_rsa_phabricator';
	}

	public function getSSHKeyNotifyPHIDs() {
	return array(
	$this->getPHID(),
	);
	}


	/* -( PhabricatorApplicationTransactionInterface )------------------------- */


	public function getApplicationTransactionEditor() {
	return new PhabricatorUserTransactionEditor();
	}

	public function getApplicationTransactionTemplate() {
	return new PhabricatorUserTransaction();
	}


	/* -( PhabricatorFulltextInterface )--------------------------------------- */


	public function newFulltextEngine() {
	return new PhabricatorUserFulltextEngine();
	}


	/* -( PhabricatorFerretInterface )----------------------------------------- */


	public function newFerretEngine() {
	return new PhabricatorUserFerretEngine();
	}


	/* -( PhabricatorConduitResultInterface )---------------------------------- */


	public function getFieldSpecificationsForConduit() {
	return array(
	id(new PhabricatorConduitSearchFieldSpecification())
	->setKey('username')
	->setType('string')
	->setDescription(pht("The user's username.")),
	id(new PhabricatorConduitSearchFieldSpecification())
	->setKey('realName')
	->setType('string')
	->setDescription(pht("The user's real name.")),
	id(new PhabricatorConduitSearchFieldSpecification())
	->setKey('roles')
	->setType('list<string>')
	->setDescription(pht('List of account roles.')),
	);
	}

	public function getFieldValuesForConduit() {
	$roles = array();

	if ($this->getIsDisabled()) {
	$roles[] = 'disabled';
	}

	if ($this->getIsSystemAgent()) {
	$roles[] = 'bot';
	}

	if ($this->getIsMailingList()) {
	$roles[] = 'list';
	}

	if ($this->getIsAdmin()) {
	$roles[] = 'admin';
	}

	if ($this->getIsEmailVerified()) {
	$roles[] = 'verified';
	}

	if ($this->getIsApproved()) {
	$roles[] = 'approved';
	}

	if ($this->isUserActivated()) {
	$roles[] = 'activated';
	}

	return array(
	'username' => $this->getUsername(),
	'realName' => $this->getRealName(),
	'roles' => $roles,
	);
	}

	public function getConduitSearchAttachments() {
	return array(
	id(new PhabricatorPeopleAvailabilitySearchEngineAttachment())
	->setAttachmentKey('availability'),
	);
	}


	/* -( User Cache )--------------------------------------------------------- */


	/**
	* @task cache
	*/
	public function attachRawCacheData(array $data) {
	$this->rawCacheData = $data + $this->rawCacheData;
	return $this;
	}

	public function setAllowInlineCacheGeneration($allow_cache_generation) {
	$this->allowInlineCacheGeneration = $allow_cache_generation;
	return $this;
	}

	/**
	* @task cache
	*/
	protected function requireCacheData($key) {
	if (isset($this->usableCacheData[$key])) {
	return $this->usableCacheData[$key];
	}

	$type = PhabricatorUserCacheType::requireCacheTypeForKey($key);

	if (isset($this->rawCacheData[$key])) {
	$raw_value = $this->rawCacheData[$key];

	$usable_value = $type->getValueFromStorage($raw_value);
	$this->usableCacheData[$key] = $usable_value;

	return $usable_value;
	}

	// By default, we throw if a cache isn't available. This is consistent
	// with the standard `needX()` + `attachX()` + `getX()` interaction.
	if (!$this->allowInlineCacheGeneration) {
	throw new PhabricatorDataNotAttachedException($this);
	}

	$user_phid = $this->getPHID();

	// Try to read the actual cache before we generate a new value. We can
	// end up here via Conduit, which does not use normal sessions and can
	// not pick up a free cache load during session identification.
	if ($user_phid) {
	$raw_data = PhabricatorUserCache::readCaches(
	$type,
	$key,
	array($user_phid));
	if (array_key_exists($user_phid, $raw_data)) {
	$raw_value = $raw_data[$user_phid];
	$usable_value = $type->getValueFromStorage($raw_value);
	$this->rawCacheData[$key] = $raw_value;
	$this->usableCacheData[$key] = $usable_value;
	return $usable_value;
	}
	}

	$usable_value = $type->getDefaultValue();

	if ($user_phid) {
	$map = $type->newValueForUsers($key, array($this));
	if (array_key_exists($user_phid, $map)) {
	$raw_value = $map[$user_phid];
	$usable_value = $type->getValueFromStorage($raw_value);

	$this->rawCacheData[$key] = $raw_value;
	PhabricatorUserCache::writeCache(
	$type,
	$key,
	$user_phid,
	$raw_value);
	}
	}

	$this->usableCacheData[$key] = $usable_value;

	return $usable_value;
	}


	/**
	* @task cache
	*/
	public function clearCacheData($key) {
	unset($this->rawCacheData[$key]);
	unset($this->usableCacheData[$key]);
	return $this;
	}


	public function getCSSValue($variable_key) {
	$preference = PhabricatorAccessibilitySetting::SETTINGKEY;
	$key = $this->getUserSetting($preference);

	$postprocessor = CelerityPostprocessor::getPostprocessor($key);
	$variables = $postprocessor->getVariables();

	if (!isset($variables[$variable_key])) {
	throw new Exception(
	pht(
	'Unknown CSS variable "%s"!',
	$variable_key));
	}

	return $variables[$variable_key];
	}

	/* -( PhabricatorAuthPasswordHashInterface )------------------------------- */


	public function newPasswordDigest(
	PhutilOpaqueEnvelope $envelope,
	PhabricatorAuthPassword $password) {

	// Before passwords are hashed, they are digested. The goal of digestion
	// is twofold: to reduce the length of very long passwords to something
	// reasonable; and to salt the password in case the best available hasher
	// does not include salt automatically.

	// Users may choose arbitrarily long passwords, and attackers may try to
	// attack the system by probing it with very long passwords. When large
	// inputs are passed to hashers -- which are intentionally slow -- it
	// can result in unacceptably long runtimes. The classic attack here is
	// to try to log in with a 64MB password and see if that locks up the
	// machine for the next century. By digesting passwords to a standard
	// length first, the length of the raw input does not impact the runtime
	// of the hashing algorithm.

	// Some hashers like bcrypt are self-salting, while other hashers are not.
	// Applying salt while digesting passwords ensures that hashes are salted
	// whether we ultimately select a self-salting hasher or not.

	// For legacy compatibility reasons, old VCS and Account password digest
	// algorithms are significantly more complicated than necessary to achieve
	// these goals. This is because they once used a different hashing and
	// salting process. When we upgraded to the modern modular hasher
	// infrastructure, we just bolted it onto the end of the existing pipelines
	// so that upgrading didn't break all users' credentials.

	// New implementations can (and, generally, should) safely select the
	// simple HMAC SHA256 digest at the bottom of the function, which does
	// everything that a digest callback should without any needless legacy
	// baggage on top.

	if ($password->getLegacyDigestFormat() == 'v1') {
	switch ($password->getPasswordType()) {
	case PhabricatorAuthPassword::PASSWORD_TYPE_VCS:
	// Old VCS passwords use an iterated HMAC SHA1 as a digest algorithm.
	// They originally used this as a hasher, but it became a digest
	// algorithm once hashing was upgraded to include bcrypt.
	$digest = $envelope->openEnvelope();
	$salt = $this->getPHID();
	for ($ii = 0; $ii < 1000; $ii++) {
	$digest = PhabricatorHash::weakDigest($digest, $salt);
	}
	return new PhutilOpaqueEnvelope($digest);
	case PhabricatorAuthPassword::PASSWORD_TYPE_ACCOUNT:
	// Account passwords previously used this weird mess of salt and did
	// not digest the input to a standard length.

	// Beyond this being a weird special case, there are two actual
	// problems with this, although neither are particularly severe:

	// First, because we do not normalize the length of passwords, this
	// algorithm may make us vulnerable to DOS attacks where an attacker
	// attempts to use a very long input to slow down hashers.

	// Second, because the username is part of the hash algorithm,
	// renaming a user breaks their password. This isn't a huge deal but
	// it's pretty silly. There's no security justification for this
	// behavior, I just didn't think about the implication when I wrote
	// it originally.

	$parts = array(
	$this->getUsername(),
	$envelope->openEnvelope(),
	$this->getPHID(),
	$password->getPasswordSalt(),
	);

	return new PhutilOpaqueEnvelope(implode('', $parts));
	}
	}

	// For passwords which do not have some crazy legacy reason to use some
	// other digest algorithm, HMAC SHA256 is an excellent choice. It satisfies
	// the digest requirements and is simple.

	$digest = PhabricatorHash::digestHMACSHA256(
	$envelope->openEnvelope(),
	$password->getPasswordSalt());

	return new PhutilOpaqueEnvelope($digest);
	}

	public function newPasswordBlocklist(
	PhabricatorUser $viewer,
	PhabricatorAuthPasswordEngine $engine) {

	$list = array();
	$list[] = $this->getUsername();
	$list[] = $this->getRealName();

	$emails = id(new PhabricatorUserEmail())->loadAllWhere(
	'userPHID = %s',
	$this->getPHID());
	foreach ($emails as $email) {
	$list[] = $email->getAddress();
	}

	return $list;
	}


	}

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