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	diff --git a/src/applications/people/controller/PhabricatorPeopleProfileController.php b/src/applications/people/controller/PhabricatorPeopleProfileController.php
	index bd44169ef7..7393df8455 100644
	--- a/src/applications/people/controller/PhabricatorPeopleProfileController.php
	+++ b/src/applications/people/controller/PhabricatorPeopleProfileController.php
	@@ -1,123 +1,125 @@
	<?php

	abstract class PhabricatorPeopleProfileController
	extends PhabricatorPeopleController {

	private $user;
	private $profileMenu;

	public function shouldRequireAdmin() {
	return false;
	}

	public function setUser(PhabricatorUser $user) {
	$this->user = $user;
	return $this;
	}

	public function getUser() {
	return $this->user;
	}

	public function buildApplicationMenu() {
	$menu = $this->newApplicationMenu();

	$profile_menu = $this->getProfileMenu();
	if ($profile_menu) {
	$menu->setProfileMenu($profile_menu);
	}

	return $menu;
	}

	protected function getProfileMenu() {
	if (!$this->profileMenu) {
	$user = $this->getUser();
	if ($user) {
	$viewer = $this->getViewer();

	$engine = id(new PhabricatorPeopleProfileMenuEngine())
	->setViewer($viewer)
	->setProfileObject($user);

	$this->profileMenu = $engine->buildNavigation();
	}
	}

	return $this->profileMenu;
	}

	protected function buildApplicationCrumbs() {
	$crumbs = parent::buildApplicationCrumbs();

	$user = $this->getUser();
	if ($user) {
	$crumbs->addTextCrumb(
	$user->getUsername(),
	urisprintf('/p/%s/', $user->getUsername()));
	}

	return $crumbs;
	}

	public function buildProfileHeader() {
	$user = $this->user;
	$viewer = $this->getViewer();

	$profile = $user->loadUserProfile();
	$picture = $user->getProfileImageURI();

	$profile_icon = PhabricatorPeopleIconSet::getIconIcon($profile->getIcon());
	$profile_title = $profile->getDisplayTitle();

	$roles = array();
	if ($user->getIsAdmin()) {
	$roles[] = pht('Administrator');
	}
	if ($user->getIsDisabled()) {
	$roles[] = pht('Disabled');
	}
	if (!$user->getIsApproved()) {
	$roles[] = pht('Not Approved');
	}
	if ($user->getIsSystemAgent()) {
	$roles[] = pht('Bot');
	}
	if ($user->getIsMailingList()) {
	$roles[] = pht('Mailing List');
	}

	$tag = null;
	if ($roles) {
	$tag = id(new PHUITagView())
	->setName(implode(', ', $roles))
	->addClass('project-view-header-tag')
	->setType(PHUITagView::TYPE_SHADE);
	}

	$header = id(new PHUIHeaderView())
	->setHeader(array($user->getFullName(), $tag))
	->setImage($picture)
	->setProfileHeader(true)
	->addClass('people-profile-header');

	if ($user->getIsDisabled()) {
	$header->setStatus('fa-ban', 'red', pht('Disabled'));
	+ } else if (!$user->getIsEmailVerified()) {
	+ $header->setStatus('fa-envelope', 'red', pht('Email Not Verified'));
	} else {
	$header->setStatus($profile_icon, 'bluegrey', $profile_title);
	}

	$can_edit = PhabricatorPolicyFilter::hasCapability(
	$viewer,
	$user,
	PhabricatorPolicyCapability::CAN_EDIT);

	if ($can_edit) {
	$id = $user->getID();
	$header->setImageEditURL($this->getApplicationURI("picture/{$id}/"));
	}

	return $header;
	}

	}
	diff --git a/src/applications/people/markup/PhabricatorMentionRemarkupRule.php b/src/applications/people/markup/PhabricatorMentionRemarkupRule.php
	index 92697f018c..778384e946 100644
	--- a/src/applications/people/markup/PhabricatorMentionRemarkupRule.php
	+++ b/src/applications/people/markup/PhabricatorMentionRemarkupRule.php
	@@ -1,190 +1,190 @@
	<?php

	final class PhabricatorMentionRemarkupRule extends PhutilRemarkupRule {

	const KEY_RULE_MENTION = 'rule.mention';
	const KEY_RULE_MENTION_ORIGINAL = 'rule.mention.original';

	const KEY_MENTIONED = 'phabricator.mentioned-user-phids';


	// NOTE: The negative lookbehind prevents matches like "mail@lists", while
	// allowing constructs like "@tomo/@mroch". Since we now allow periods in
	// usernames, we can't resonably distinguish that "@company.com" isn't a
	// username, so we'll incorrectly pick it up, but there's little to be done
	// about that. We forbid terminal periods so that we can correctly capture
	// "@joe" instead of "@joe." in "Hey, @joe.".
	//
	// We disallow "@@joe" because it creates a false positive in the common
	// construction "l@@k", made popular by eBay.
	const REGEX = '/(?<!\w\|@)@([a-zA-Z0-9._-]*[a-zA-Z0-9_-])/';

	public function apply($text) {
	return preg_replace_callback(
	self::REGEX,
	array($this, 'markupMention'),
	$text);
	}

	protected function markupMention(array $matches) {
	$engine = $this->getEngine();

	if ($engine->isTextMode()) {
	return $engine->storeText($matches[0]);
	}

	$token = $engine->storeText('');

	// Store the original text exactly so we can preserve casing if it doesn't
	// resolve into a username.
	$original_key = self::KEY_RULE_MENTION_ORIGINAL;
	$original = $engine->getTextMetadata($original_key, array());
	$original[$token] = $matches[1];
	$engine->setTextMetadata($original_key, $original);

	$metadata_key = self::KEY_RULE_MENTION;
	$metadata = $engine->getTextMetadata($metadata_key, array());
	$username = strtolower($matches[1]);
	if (empty($metadata[$username])) {
	$metadata[$username] = array();
	}
	$metadata[$username][] = $token;
	$engine->setTextMetadata($metadata_key, $metadata);

	return $token;
	}

	public function didMarkupText() {
	$engine = $this->getEngine();

	$metadata_key = self::KEY_RULE_MENTION;
	$metadata = $engine->getTextMetadata($metadata_key, array());
	if (empty($metadata)) {
	// No mentions, or we already processed them.
	return;
	}

	$original_key = self::KEY_RULE_MENTION_ORIGINAL;
	$original = $engine->getTextMetadata($original_key, array());

	$usernames = array_keys($metadata);

	$users = id(new PhabricatorPeopleQuery())
	->setViewer($this->getEngine()->getConfig('viewer'))
	->withUsernames($usernames)
	->needAvailability(true)
	->execute();

	$actual_users = array();

	$mentioned_key = self::KEY_MENTIONED;
	$mentioned = $engine->getTextMetadata($mentioned_key, array());
	foreach ($users as $row) {
	$actual_users[strtolower($row->getUserName())] = $row;
	$mentioned[$row->getPHID()] = $row->getPHID();
	}

	$engine->setTextMetadata($mentioned_key, $mentioned);
	$context_object = $engine->getConfig('contextObject');

	foreach ($metadata as $username => $tokens) {
	$exists = isset($actual_users[$username]);
	$user_has_no_permission = false;

	if ($exists) {
	$user = $actual_users[$username];
	Javelin::initBehavior('phui-hovercards');

	// Check if the user has view access to the object she was mentioned in
	if ($context_object
	&& $context_object instanceof PhabricatorPolicyInterface) {
	if (!PhabricatorPolicyFilter::hasCapability(
	$user,
	$context_object,
	PhabricatorPolicyCapability::CAN_VIEW)) {
	// User mentioned has no permission to this object
	$user_has_no_permission = true;
	}
	}

	$user_href = '/p/'.$user->getUserName().'/';

	if ($engine->isHTMLMailMode()) {
	$user_href = PhabricatorEnv::getProductionURI($user_href);

	if ($user_has_no_permission) {
	$colors = '
	border-color: #92969D;
	color: #92969D;
	background-color: #F7F7F7;';
	} else {
	$colors = '
	border-color: #f1f7ff;
	color: #19558d;
	background-color: #f1f7ff;';
	}

	$tag = phutil_tag(
	'a',
	array(
	'href' => $user_href,
	'style' => $colors.'
	border: 1px solid transparent;
	border-radius: 3px;
	font-weight: bold;
	padding: 0 4px;',
	),
	'@'.$user->getUserName());
	} else {
	if ($engine->getConfig('uri.full')) {
	$user_href = PhabricatorEnv::getURI($user_href);
	}

	$tag = id(new PHUITagView())
	->setType(PHUITagView::TYPE_PERSON)
	->setPHID($user->getPHID())
	->setName('@'.$user->getUserName())
	->setHref($user_href);

	if ($user_has_no_permission) {
	$tag->addClass('phabricator-remarkup-mention-nopermission');
	}

	- if (!$user->isUserActivated()) {
	+ if (!$user->isResponsive()) {
	$tag->setDotColor(PHUITagView::COLOR_GREY);
	} else {
	if ($user->getAwayUntil()) {
	$away = PhabricatorCalendarEventInvitee::AVAILABILITY_AWAY;
	if ($user->getDisplayAvailability() == $away) {
	$tag->setDotColor(PHUITagView::COLOR_RED);
	} else {
	$tag->setDotColor(PHUITagView::COLOR_ORANGE);
	}
	}
	}
	}

	foreach ($tokens as $token) {
	$engine->overwriteStoredText($token, $tag);
	}
	} else {
	// NOTE: The structure here is different from the 'exists' branch,
	// because we want to preserve the original text capitalization and it
	// may differ for each token.
	foreach ($tokens as $token) {
	$tag = phutil_tag(
	'span',
	array(
	'class' => 'phabricator-remarkup-mention-unknown',
	),
	'@'.idx($original, $token, $username));
	$engine->overwriteStoredText($token, $tag);
	}
	}
	}

	// Don't re-process these mentions.
	$engine->setTextMetadata($metadata_key, array());
	}

	}
	diff --git a/src/applications/people/phid/PhabricatorPeopleUserPHIDType.php b/src/applications/people/phid/PhabricatorPeopleUserPHIDType.php
	index 77e0088c5e..2d773121a0 100644
	--- a/src/applications/people/phid/PhabricatorPeopleUserPHIDType.php
	+++ b/src/applications/people/phid/PhabricatorPeopleUserPHIDType.php
	@@ -1,116 +1,116 @@
	<?php

	final class PhabricatorPeopleUserPHIDType extends PhabricatorPHIDType {

	const TYPECONST = 'USER';

	public function getTypeName() {
	return pht('User');
	}

	public function getTypeIcon() {
	return 'fa-user bluegrey';
	}

	public function newObject() {
	return new PhabricatorUser();
	}

	public function getPHIDTypeApplicationClass() {
	return 'PhabricatorPeopleApplication';
	}

	protected function buildQueryForObjects(
	PhabricatorObjectQuery $query,
	array $phids) {

	return id(new PhabricatorPeopleQuery())
	->withPHIDs($phids)
	->needProfile(true)
	->needProfileImage(true)
	->needAvailability(true);
	}

	public function loadHandles(
	PhabricatorHandleQuery $query,
	array $handles,
	array $objects) {

	foreach ($handles as $phid => $handle) {
	$user = $objects[$phid];
	$realname = $user->getRealName();

	$handle->setName($user->getUsername());
	$handle->setURI('/p/'.$user->getUsername().'/');
	$handle->setFullName($user->getFullName());
	$handle->setImageURI($user->getProfileImageURI());

	if ($user->getIsMailingList()) {
	$handle->setIcon('fa-envelope-o');
	$handle->setSubtitle(pht('Mailing List'));
	} else {
	$profile = $user->getUserProfile();
	$icon_key = $profile->getIcon();
	$icon_icon = PhabricatorPeopleIconSet::getIconIcon($icon_key);
	$subtitle = $profile->getDisplayTitle();

	$handle
	->setIcon($icon_icon)
	->setSubtitle($subtitle)
	->setTokenIcon('fa-user');
	}

	$availability = null;
	- if (!$user->isUserActivated()) {
	+ if (!$user->isResponsive()) {
	$availability = PhabricatorObjectHandle::AVAILABILITY_DISABLED;
	} else {
	$until = $user->getAwayUntil();
	if ($until) {
	$away = PhabricatorCalendarEventInvitee::AVAILABILITY_AWAY;
	if ($user->getDisplayAvailability() == $away) {
	$availability = PhabricatorObjectHandle::AVAILABILITY_NONE;
	} else {
	$availability = PhabricatorObjectHandle::AVAILABILITY_PARTIAL;
	}
	}
	}

	if ($availability) {
	$handle->setAvailability($availability);
	}
	}
	}

	public function canLoadNamedObject($name) {
	return preg_match('/^@.+/', $name);
	}

	public function loadNamedObjects(
	PhabricatorObjectQuery $query,
	array $names) {

	$id_map = array();
	foreach ($names as $name) {
	$id = substr($name, 1);
	$id = phutil_utf8_strtolower($id);
	$id_map[$id][] = $name;
	}

	$objects = id(new PhabricatorPeopleQuery())
	->setViewer($query->getViewer())
	->withUsernames(array_keys($id_map))
	->execute();

	$results = array();
	foreach ($objects as $id => $object) {
	$user_key = $object->getUsername();
	$user_key = phutil_utf8_strtolower($user_key);
	foreach (idx($id_map, $user_key, array()) as $name) {
	$results[$name] = $object;
	}
	}

	return $results;
	}

	}
	diff --git a/src/applications/people/storage/PhabricatorUser.php b/src/applications/people/storage/PhabricatorUser.php
	index 61b2209c24..813d11c868 100644
	--- a/src/applications/people/storage/PhabricatorUser.php
	+++ b/src/applications/people/storage/PhabricatorUser.php
	@@ -1,1557 +1,1583 @@
	<?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,
	PhabricatorConduitResultInterface {

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

	protected $userName;
	protected $realName;
	protected $passwordSalt;
	protected $passwordHash;
	protected $profileImagePHID;
	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 $authorities = 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',
	'passwordSalt' => 'text32?',
	'passwordHash' => '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?',
	),
	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 setPassword(PhutilOpaqueEnvelope $envelope) {
	if (!$this->getPHID()) {
	throw new Exception(
	pht(
	'You can not set a password for an unsaved user because their PHID '.
	'is a salt component in the password hash.'));
	}

	if (!strlen($envelope->openEnvelope())) {
	$this->setPasswordHash('');
	} else {
	$this->setPasswordSalt(md5(Filesystem::readRandomBytes(32)));
	$hash = $this->hashPassword($envelope);
	$this->setPasswordHash($hash->openEnvelope());
	}
	return $this;
	}

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

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

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

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

	$result = parent::save();

	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);
	}

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

	public function comparePassword(PhutilOpaqueEnvelope $envelope) {
	if (!strlen($envelope->openEnvelope())) {
	return false;
	}
	if (!strlen($this->getPasswordHash())) {
	return false;
	}

	return PhabricatorPasswordHasher::comparePassword(
	$this->getPasswordHashInput($envelope),
	new PhutilOpaqueEnvelope($this->getPasswordHash()));
	}

	private function getPasswordHashInput(PhutilOpaqueEnvelope $password) {
	$input =
	$this->getUsername().
	$password->openEnvelope().
	$this->getPHID().
	$this->getPasswordSalt();

	return new PhutilOpaqueEnvelope($input);
	}

	private function hashPassword(PhutilOpaqueEnvelope $password) {
	$hasher = PhabricatorPasswordHasher::getBestHasher();

	$input_envelope = $this->getPasswordHashInput($password);
	return $hasher->getPasswordHashForStorage($input_envelope);
	}

	const CSRF_CYCLE_FREQUENCY = 3600;
	const CSRF_SALT_LENGTH = 8;
	const CSRF_TOKEN_LENGTH = 16;
	const CSRF_BREACH_PREFIX = 'B@';

	const EMAIL_CYCLE_FREQUENCY = 86400;
	const EMAIL_TOKEN_LENGTH = 24;

	private function getRawCSRFToken($offset = 0) {
	return $this->generateToken(
	time() + (self::CSRF_CYCLE_FREQUENCY * $offset),
	self::CSRF_CYCLE_FREQUENCY,
	PhabricatorEnv::getEnvConfig('phabricator.csrf-key'),
	self::CSRF_TOKEN_LENGTH);
	}

	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;
	}

	if ($this->csrfSalt === null) {
	$this->csrfSalt = Filesystem::readRandomCharacters(
	self::CSRF_SALT_LENGTH);
	}

	$salt = $this->csrfSalt;

	// Generate a token hash to mitigate BREACH attacks against SSL. See
	// discussion in T3684.
	$token = $this->getRawCSRFToken();
	$hash = PhabricatorHash::digest($token, $salt);
	return self::CSRF_BREACH_PREFIX.$salt.substr(
	$hash, 0, self::CSRF_TOKEN_LENGTH);
	}

	public function validateCSRFToken($token) {
	// We expect a BREACH-mitigating token. See T3684.
	$breach_prefix = self::CSRF_BREACH_PREFIX;
	$breach_prelen = strlen($breach_prefix);
	if (strncmp($token, $breach_prefix, $breach_prelen) !== 0) {
	return false;
	}

	$salt = substr($token, $breach_prelen, self::CSRF_SALT_LENGTH);
	$token = substr($token, $breach_prelen + self::CSRF_SALT_LENGTH);

	// When the user posts a form, we check that it contains a valid CSRF token.
	// Tokens cycle each hour (every CSRF_CYLCE_FREQUENCY seconds) and we accept
	// either the current token, the next token (users can submit a "future"
	// token if you have two web frontends that have some clock skew) or any of
	// the last 6 tokens. This means that pages are valid for up to 7 hours.
	// There is also some Javascript which periodically refreshes the CSRF
	// tokens on each page, so theoretically pages should be valid indefinitely.
	// However, this code may fail to run (if the user loses their internet
	// connection, or there's a JS problem, or they don't have JS enabled).
	// Choosing the size of the window in which we accept old CSRF tokens is
	// an issue of balancing concerns between security and usability. We could
	// choose a very narrow (e.g., 1-hour) window to reduce vulnerability to
	// attacks using captured CSRF tokens, but it's also more likely that real
	// users will be affected by this, e.g. if they close their laptop for an
	// hour, open it back up, and try to submit a form before the CSRF refresh
	// can kick in. Since the user experience of submitting a form with expired
	// CSRF is often quite bad (you basically lose data, or it's a big pain to
	// recover at least) and I believe we gain little additional protection
	// by keeping the window very short (the overwhelming value here is in
	// preventing blind attacks, and most attacks which can capture CSRF tokens
	// can also just capture authentication information [sniffing networks]
	// or act as the user [xss]) the 7 hour default seems like a reasonable
	// balance. Other major platforms have much longer CSRF token lifetimes,
	// like Rails (session duration) and Django (forever), which suggests this
	// is a reasonable analysis.
	$csrf_window = 6;

	for ($ii = -$csrf_window; $ii <= 1; $ii++) {
	$valid = $this->getRawCSRFToken($ii);

	$digest = PhabricatorHash::digest($valid, $salt);
	$digest = substr($digest, 0, self::CSRF_TOKEN_LENGTH);
	if (phutil_hashes_are_identical($digest, $token)) {
	return true;
	}
	}

	return false;
	}

	private function generateToken($epoch, $frequency, $key, $len) {
	if ($this->getPHID()) {
	$vec = $this->getPHID().$this->getAccountSecret();
	} else {
	$vec = $this->getAlternateCSRFString();
	}

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

	$time_block = floor($epoch / $frequency);
	$vec = $vec.$key.$time_block;

	return substr(PhabricatorHash::digest($vec), 0, $len);
	}

	public function getUserProfile() {
	return $this->assertAttached($this->profile);
	}

	public function attachUserProfile(PhabricatorUserProfile $profile) {
	$this->profile = $profile;
	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);
	}

	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 $this->loadOneRelative(
	new PhabricatorUserEmail(),
	'userPHID',
	'getPHID',
	'(isPrimary = 1)');
	}


	/* -( 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);
	}

	public function loadEditorLink(
	$path,
	$line,
	PhabricatorRepository $repository = null) {

	$editor = $this->getUserSetting(PhabricatorEditorSetting::SETTINGKEY);

	if (is_array($path)) {
	$multi_key = PhabricatorEditorMultipleSetting::SETTINGKEY;
	$multiedit = $this->getUserSetting($multi_key);
	switch ($multiedit) {
	case PhabricatorEditorMultipleSetting::VALUE_SPACES:
	$path = implode(' ', $path);
	break;
	case PhabricatorEditorMultipleSetting::VALUE_SINGLE:
	default:
	return null;
	}
	}

	if (!strlen($editor)) {
	return null;
	}

	if ($repository) {
	$callsign = $repository->getCallsign();
	} else {
	$callsign = null;
	}

	$uri = strtr($editor, array(
	'%%' => '%',
	'%f' => phutil_escape_uri($path),
	'%l' => phutil_escape_uri($line),
	'%r' => phutil_escape_uri($callsign),
	));

	// The resulting URI must have an allowed protocol. Otherwise, we'll return
	// a link to an error page explaining the misconfiguration.

	$ok = PhabricatorHelpEditorProtocolController::hasAllowedProtocol($uri);
	if (!$ok) {
	return '/help/editorprotocol/';
	}

	return (string)$uri;
	}

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

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

	/**
	* 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 %Q',
	$table,
	implode(', ', $sql));
	}
	}

	public function sendWelcomeEmail(PhabricatorUser $admin) {
	if (!$this->canEstablishWebSessions()) {
	throw new Exception(
	pht(
	'Can not send welcome mail to users who can not establish '.
	'web sessions!'));
	}

	$admin_username = $admin->getUserName();
	$admin_realname = $admin->getRealName();
	$user_username = $this->getUserName();
	$is_serious = PhabricatorEnv::getEnvConfig('phabricator.serious-business');

	$base_uri = PhabricatorEnv::getProductionURI('/');

	$engine = new PhabricatorAuthSessionEngine();
	$uri = $engine->getOneTimeLoginURI(
	$this,
	$this->loadPrimaryEmail(),
	PhabricatorAuthSessionEngine::ONETIME_WELCOME);

	$body = pht(
	"Welcome to Phabricator!\n\n".
	"%s (%s) has created an account for you.\n\n".
	" Username: %s\n\n".
	"To login to Phabricator, follow this link and set a password:\n\n".
	" %s\n\n".
	"After you have set a password, you can login in the future by ".
	"going here:\n\n".
	" %s\n",
	$admin_username,
	$admin_realname,
	$user_username,
	$uri,
	$base_uri);

	if (!$is_serious) {
	$body .= sprintf(
	"\n%s\n",
	pht("Love,\nPhabricator"));
	}

	$mail = id(new PhabricatorMetaMTAMail())
	->addTos(array($this->getPHID()))
	->setForceDelivery(true)
	->setSubject(pht('[Phabricator] Welcome to Phabricator'))
	->setBody($body)
	->saveAndSend();
	}

	public function sendUsernameChangeEmail(
	PhabricatorUser $admin,
	$old_username) {

	$admin_username = $admin->getUserName();
	$admin_realname = $admin->getRealName();
	$new_username = $this->getUserName();

	$password_instructions = null;
	if (PhabricatorPasswordAuthProvider::getPasswordProvider()) {
	$engine = new PhabricatorAuthSessionEngine();
	$uri = $engine->getOneTimeLoginURI(
	$this,
	null,
	PhabricatorAuthSessionEngine::ONETIME_USERNAME);
	$password_instructions = sprintf(
	"%s\n\n %s\n\n%s\n",
	pht(
	"If you use a password to login, you'll need to reset it ".
	"before you can login again. You can reset your password by ".
	"following this link:"),
	$uri,
	pht(
	"And, of course, you'll need to use your new username to login ".
	"from now on. If you use OAuth to login, nothing should change."));
	}

	$body = sprintf(
	"%s\n\n %s\n %s\n\n%s",
	pht(
	'%s (%s) has changed your Phabricator username.',
	$admin_username,
	$admin_realname),
	pht(
	'Old Username: %s',
	$old_username),
	pht(
	'New Username: %s',
	$new_username),
	$password_instructions);

	$mail = id(new PhabricatorMetaMTAMail())
	->addTos(array($this->getPHID()))
	->setForceDelivery(true)
	->setSubject(pht('[Phabricator] Username Changed'))
	->setBody($body)
	->saveAndSend();
	}

	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 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;
	}


	/**
	* Grant a user a source of authority, to let them bypass policy checks they
	* could not otherwise.
	*/
	public function grantAuthority($authority) {
	$this->authorities[] = $authority;
	return $this;
	}


	/**
	* Get authorities granted to the user.
	*/
	public function getAuthorities() {
	return $this->authorities;
	}

	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',
	$this->getTableName(),
	json_encode($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 PhabricatorAuthFactorConfig())->loadAllWhere(
	'userPHID = %s',
	$this->getPHID());

	$enrolled = count($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 ominpotent
	* 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);
	}


	/* -( 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) {

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

	$externals = id(new PhabricatorExternalAccount())->loadAllWhere(
	'userPHID = %s',
	$this->getPHID());
	foreach ($externals as $external) {
	$external->delete();
	}

	$prefs = id(new PhabricatorUserPreferencesQuery())
	->setViewer($engine->getViewer())
	->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();
	}

	$keys = id(new PhabricatorAuthSSHKeyQuery())
	->setViewer($engine->getViewer())
	->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) {
	$email->delete();
	}

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

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

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


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


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

	public function getApplicationTransactionObject() {
	return $this;
	}

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

	public function willRenderTimeline(
	PhabricatorApplicationTransactionView $timeline,
	AphrontRequest $request) {
	return $timeline;
	}


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


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


	/* -( 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 acccount 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();
	}


	/* -( 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;
	}

	}
	diff --git a/src/applications/people/view/PhabricatorUserCardView.php b/src/applications/people/view/PhabricatorUserCardView.php
	index 0b9bc439ab..bb0ab9eebc 100644
	--- a/src/applications/people/view/PhabricatorUserCardView.php
	+++ b/src/applications/people/view/PhabricatorUserCardView.php
	@@ -1,154 +1,181 @@
	<?php

	final class PhabricatorUserCardView extends AphrontTagView {

	private $profile;
	private $viewer;
	private $tag;

	public function setProfile(PhabricatorUser $profile) {
	$this->profile = $profile;
	return $this;
	}

	public function setViewer(PhabricatorUser $viewer) {
	$this->viewer = $viewer;
	return $this;
	}

	public function setTag($tag) {
	$this->tag = $tag;
	return $this;
	}

	protected function getTagName() {
	if ($this->tag) {
	return $this->tag;
	}
	return 'div';
	}

	protected function getTagAttributes() {
	$classes = array();
	$classes[] = 'project-card-view';

	if ($this->profile->getIsDisabled()) {
	$classes[] = 'project-card-grey';
	} else {
	$classes[] = 'project-card-blue';
	}

	return array(
	'class' => implode($classes, ' '),
	);
	}

	protected function getTagContent() {

	$user = $this->profile;
	$profile = $user->loadUserProfile();
	$picture = $user->getProfileImageURI();
	$viewer = $this->viewer;

	require_celerity_resource('project-card-view-css');

	- $profile_icon = PhabricatorPeopleIconSet::getIconIcon($profile->getIcon());
	- $profile_title = $profile->getDisplayTitle();
	+ // We don't have a ton of room on the hovercard, so we're trying to show
	+ // the most important tag. Users can click through to the profile to get
	+ // more details.
	+
	+ if ($user->getIsDisabled()) {
	+ $tag_icon = 'fa-ban';
	+ $tag_title = pht('Disabled');
	+ $tag_shade = PHUITagView::COLOR_RED;
	+ } else if (!$user->getIsApproved()) {
	+ $tag_icon = 'fa-ban';
	+ $tag_title = pht('Unapproved Account');
	+ $tag_shade = PHUITagView::COLOR_RED;
	+ } else if (!$user->getIsEmailVerified()) {
	+ $tag_icon = 'fa-envelope';
	+ $tag_title = pht('Email Not Verified');
	+ $tag_shade = PHUITagView::COLOR_RED;
	+ } else if ($user->getIsAdmin()) {
	+ $tag_icon = 'fa-star';
	+ $tag_title = pht('Administrator');
	+ $tag_shade = PHUITagView::COLOR_INDIGO;
	+ } else {
	+ $tag_icon = PhabricatorPeopleIconSet::getIconIcon($profile->getIcon());
	+ $tag_title = $profile->getDisplayTitle();
	+ $tag_shade = null;
	+ }

	$tag = id(new PHUITagView())
	- ->setIcon($profile_icon)
	- ->setName($profile_title)
	- ->addClass('project-view-header-tag')
	+ ->setIcon($tag_icon)
	+ ->setName($tag_title)
	->setType(PHUITagView::TYPE_SHADE);

	+ if ($tag_shade !== null) {
	+ $tag->setShade($tag_shade);
	+ }
	+
	$header = id(new PHUIHeaderView())
	- ->setHeader(array($user->getFullName(), $tag))
	+ ->setHeader($user->getFullName())
	+ ->addTag($tag)
	->setUser($viewer)
	->setImage($picture);

	$body = array();

	$body[] = $this->addItem(
	pht('User Since'),
	- phabricator_date($profile->getDateCreated(), $viewer));
	+ phabricator_date($user->getDateCreated(), $viewer));

	if (PhabricatorApplication::isClassInstalledForViewer(
	'PhabricatorCalendarApplication',
	$viewer)) {
	$body[] = $this->addItem(
	pht('Availability'),
	id(new PHUIUserAvailabilityView())
	->setViewer($viewer)
	->setAvailableUser($user));
	}

	$badges = $this->buildBadges($user, $viewer);
	if ($badges) {
	$badges = id(new PHUIBadgeBoxView())
	->addItems($badges)
	->setCollapsed(true);
	$body[] = phutil_tag(
	'div',
	array(
	'class' => 'phui-hovercard-body-item hovercard-badges',
	),
	$badges);
	}

	$body = phutil_tag(
	'div',
	array(
	'class' => 'project-card-body',
	),
	$body);

	$card = phutil_tag(
	'div',
	array(
	'class' => 'project-card-inner',
	),
	array(
	$header,
	$body,
	));

	return $card;
	}

	private function addItem($label, $value) {
	$item = array(
	phutil_tag('strong', array(), $label),
	': ',
	phutil_tag('span', array(), $value),
	);
	return phutil_tag_div('project-card-item', $item);
	}

	private function buildBadges(
	PhabricatorUser $user,
	$viewer) {

	$class = 'PhabricatorBadgesApplication';
	$items = array();

	if (PhabricatorApplication::isClassInstalledForViewer($class, $viewer)) {
	$badge_phids = $user->getBadgePHIDs();
	if ($badge_phids) {
	$badges = id(new PhabricatorBadgesQuery())
	->setViewer($viewer)
	->withPHIDs($badge_phids)
	->withStatuses(array(PhabricatorBadgesBadge::STATUS_ACTIVE))
	->execute();

	foreach ($badges as $badge) {
	$items[] = id(new PHUIBadgeMiniView())
	->setIcon($badge->getIcon())
	->setHeader($badge->getName())
	->setQuality($badge->getQuality());
	}
	}
	}
	return $items;
	}

	}
	diff --git a/src/applications/search/controller/PhabricatorSearchHovercardController.php b/src/applications/search/controller/PhabricatorSearchHovercardController.php
	index 2fecf80dfd..513c8b1b24 100644
	--- a/src/applications/search/controller/PhabricatorSearchHovercardController.php
	+++ b/src/applications/search/controller/PhabricatorSearchHovercardController.php
	@@ -1,100 +1,116 @@
	<?php

	final class PhabricatorSearchHovercardController
	extends PhabricatorSearchBaseController {

	public function shouldAllowPublic() {
	return true;
	}

	public function handleRequest(AphrontRequest $request) {
	$viewer = $this->getViewer();
	- $phids = $request->getArr('phids');
	+ $phids = $request->getStrList('phids');
	+
	+ // If object names are provided, look them up and pretend they were
	+ // passed as additional PHIDs. This is primarily useful for debugging,
	+ // since you don't have to go look up user PHIDs to preview their
	+ // hovercards.
	+ $names = $request->getStrList('names');
	+ if ($names) {
	+ $named_objects = id(new PhabricatorObjectQuery())
	+ ->setViewer($viewer)
	+ ->withNames($names)
	+ ->execute();
	+
	+ foreach ($named_objects as $object) {
	+ $phids[] = $object->getPHID();
	+ }
	+ }

	$handles = id(new PhabricatorHandleQuery())
	->setViewer($viewer)
	->withPHIDs($phids)
	->execute();

	$objects = id(new PhabricatorObjectQuery())
	->setViewer($viewer)
	->withPHIDs($phids)
	->execute();
	$objects = mpull($objects, null, 'getPHID');

	$extensions =
	PhabricatorHovercardEngineExtension::getAllEnabledExtensions();

	$extension_maps = array();
	foreach ($extensions as $key => $extension) {
	$extension->setViewer($viewer);

	$extension_phids = array();
	foreach ($objects as $phid => $object) {
	if ($extension->canRenderObjectHovercard($object)) {
	$extension_phids[$phid] = $phid;
	}
	}

	$extension_maps[$key] = $extension_phids;
	}

	$extension_data = array();
	foreach ($extensions as $key => $extension) {
	$extension_phids = $extension_maps[$key];
	if (!$extension_phids) {
	unset($extensions[$key]);
	continue;
	}

	$extension_data[$key] = $extension->willRenderHovercards(
	array_select_keys($objects, $extension_phids));
	}

	$cards = array();
	foreach ($phids as $phid) {
	$handle = $handles[$phid];
	$object = idx($objects, $phid);

	$hovercard = id(new PHUIHovercardView())
	->setUser($viewer)
	->setObjectHandle($handle);

	if ($object) {
	$hovercard->setObject($object);

	foreach ($extension_maps as $key => $extension_phids) {
	if (isset($extension_phids[$phid])) {
	$extensions[$key]->renderHovercard(
	$hovercard,
	$handle,
	$object,
	$extension_data[$key]);
	}
	}
	}

	$cards[$phid] = $hovercard;
	}

	if ($request->isAjax()) {
	return id(new AphrontAjaxResponse())->setContent(
	array(
	'cards' => $cards,
	));
	}

	foreach ($cards as $key => $hovercard) {
	$cards[$key] = phutil_tag('div',
	array(
	'class' => 'ml',
	),
	$hovercard);
	}

	return $this->newPage()
	->appendChild($cards)
	->setShowFooter(false);
	}

	}

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