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PhabricatorAuthPassword.php
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Created
Fri, Nov 29, 20:20

PhabricatorAuthPassword.php
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<?php
final class PhabricatorAuthPassword
extends PhabricatorAuthDAO
implements
PhabricatorPolicyInterface,
PhabricatorDestructibleInterface,
PhabricatorApplicationTransactionInterface {
protected $objectPHID;
protected $passwordType;
protected $passwordHash;
protected $passwordSalt;
protected $isRevoked;
protected $legacyDigestFormat;
private $object = self::ATTACHABLE;
const PASSWORD_TYPE_ACCOUNT = 'account';
const PASSWORD_TYPE_VCS = 'vcs';
const PASSWORD_TYPE_TEST = 'test';
public static function initializeNewPassword(
PhabricatorAuthPasswordHashInterface $object,
$type) {
return id(new self())
->setObjectPHID($object->getPHID())
->attachObject($object)
->setPasswordType($type)
->setIsRevoked(0);
}
protected function getConfiguration() {
return array(
self::CONFIG_AUX_PHID => true,
self::CONFIG_COLUMN_SCHEMA => array(
'passwordType' => 'text64',
'passwordHash' => 'text128',
'passwordSalt' => 'text64',
'isRevoked' => 'bool',
'legacyDigestFormat' => 'text32?',
),
self::CONFIG_KEY_SCHEMA => array(
'key_role' => array(
'columns' => array('objectPHID', 'passwordType'),
),
),
) + parent::getConfiguration();
}
public function getPHIDType() {
return PhabricatorAuthPasswordPHIDType::TYPECONST;
}
public function getObject() {
return $this->assertAttached($this->object);
}
public function attachObject($object) {
$this->object = $object;
return $this;
}
public function getHasher() {
$hash = $this->newPasswordEnvelope();
return PhabricatorPasswordHasher::getHasherForHash($hash);
}
public function canUpgrade() {
// If this password uses a legacy digest format, we can upgrade it to the
// new digest format even if a better hasher isn't available.
if ($this->getLegacyDigestFormat() !== null) {
return true;
}
$hash = $this->newPasswordEnvelope();
return PhabricatorPasswordHasher::canUpgradeHash($hash);
}
public function upgradePasswordHasher(
PhutilOpaqueEnvelope $envelope,
PhabricatorAuthPasswordHashInterface $object) {
// Before we make changes, double check that this is really the correct
// password. It could be really bad if we "upgraded" a password and changed
// the secret!
if (!$this->comparePassword($envelope, $object)) {
throw new Exception(
pht(
'Attempting to upgrade password hasher, but the password for the '.
'upgrade is not the stored credential!'));
}
return $this->setPassword($envelope, $object);
}
public function setPassword(
PhutilOpaqueEnvelope $password,
PhabricatorAuthPasswordHashInterface $object) {
$hasher = PhabricatorPasswordHasher::getBestHasher();
return $this->setPasswordWithHasher($password, $object, $hasher);
}
public function setPasswordWithHasher(
PhutilOpaqueEnvelope $password,
PhabricatorAuthPasswordHashInterface $object,
PhabricatorPasswordHasher $hasher) {
if (!strlen($password->openEnvelope())) {
throw new Exception(
pht('Attempting to set an empty password!'));
}
// Generate (or regenerate) the salt first.
$new_salt = Filesystem::readRandomCharacters(64);
$this->setPasswordSalt($new_salt);
// Clear any legacy digest format to force a modern digest.
$this->setLegacyDigestFormat(null);
$digest = $this->digestPassword($password, $object);
$hash = $hasher->getPasswordHashForStorage($digest);
$raw_hash = $hash->openEnvelope();
return $this->setPasswordHash($raw_hash);
}
public function comparePassword(
PhutilOpaqueEnvelope $password,
PhabricatorAuthPasswordHashInterface $object) {
$digest = $this->digestPassword($password, $object);
$hash = $this->newPasswordEnvelope();
return PhabricatorPasswordHasher::comparePassword($digest, $hash);
}
public function newPasswordEnvelope() {
return new PhutilOpaqueEnvelope($this->getPasswordHash());
}
private function digestPassword(
PhutilOpaqueEnvelope $password,
PhabricatorAuthPasswordHashInterface $object) {
$object_phid = $object->getPHID();
if ($this->getObjectPHID() !== $object->getPHID()) {
throw new Exception(
pht(
'This password is associated with an object PHID ("%s") for '.
'a different object than the provided one ("%s").',
$this->getObjectPHID(),
$object->getPHID()));
}
$digest = $object->newPasswordDigest($password, $this);
if (!($digest instanceof PhutilOpaqueEnvelope)) {
throw new Exception(
pht(
'Failed to digest password: object ("%s") did not return an '.
'opaque envelope with a password digest.',
$object->getPHID()));
}
return $digest;
}
/* -( PhabricatorPolicyInterface )----------------------------------------- */
public function getCapabilities() {
return array(
PhabricatorPolicyCapability::CAN_VIEW,
);
}
public function getPolicy($capability) {
return PhabricatorPolicies::getMostOpenPolicy();
}
public function hasAutomaticCapability($capability, PhabricatorUser $viewer) {
return false;
}
/* -( PhabricatorExtendedPolicyInterface )--------------------------------- */
public function getExtendedPolicy($capability, PhabricatorUser $viewer) {
return array(
array($this->getObject(), PhabricatorPolicyCapability::CAN_VIEW),
);
}
/* -( PhabricatorDestructibleInterface )----------------------------------- */
public function destroyObjectPermanently(
PhabricatorDestructionEngine $engine) {
$this->delete();
}
/* -( PhabricatorApplicationTransactionInterface )------------------------- */
public function getApplicationTransactionEditor() {
return new PhabricatorAuthPasswordEditor();
}
public function getApplicationTransactionObject() {
return $this;
}
public function getApplicationTransactionTemplate() {
return new PhabricatorAuthPasswordTransaction();
}
public function willRenderTimeline(
PhabricatorApplicationTransactionView $timeline,
AphrontRequest $request) {
return $timeline;
}
}

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