D14117.id34110.diff
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	diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
	--- a/src/__phutil_library_map__.php
	+++ b/src/__phutil_library_map__.php
	@@ -797,6 +797,7 @@
	'DoorkeeperTagView' => 'applications/doorkeeper/view/DoorkeeperTagView.php',
	'DoorkeeperTagsController' => 'applications/doorkeeper/controller/DoorkeeperTagsController.php',
	'DrydockAllocatorWorker' => 'applications/drydock/worker/DrydockAllocatorWorker.php',
	+ 'DrydockAlmanacServiceHostBlueprintImplementation' => 'applications/drydock/blueprint/DrydockAlmanacServiceHostBlueprintImplementation.php',
	'DrydockApacheWebrootInterface' => 'applications/drydock/interface/webroot/DrydockApacheWebrootInterface.php',
	'DrydockBlueprint' => 'applications/drydock/storage/DrydockBlueprint.php',
	'DrydockBlueprintController' => 'applications/drydock/controller/DrydockBlueprintController.php',
	@@ -845,7 +846,6 @@
	'DrydockLogQuery' => 'applications/drydock/query/DrydockLogQuery.php',
	'DrydockLogSearchEngine' => 'applications/drydock/query/DrydockLogSearchEngine.php',
	'DrydockManagementCloseWorkflow' => 'applications/drydock/management/DrydockManagementCloseWorkflow.php',
	- 'DrydockManagementCreateResourceWorkflow' => 'applications/drydock/management/DrydockManagementCreateResourceWorkflow.php',
	'DrydockManagementLeaseWorkflow' => 'applications/drydock/management/DrydockManagementLeaseWorkflow.php',
	'DrydockManagementReleaseWorkflow' => 'applications/drydock/management/DrydockManagementReleaseWorkflow.php',
	'DrydockManagementWorkflow' => 'applications/drydock/management/DrydockManagementWorkflow.php',
	@@ -4502,6 +4502,7 @@
	'DoorkeeperTagView' => 'AphrontView',
	'DoorkeeperTagsController' => 'PhabricatorController',
	'DrydockAllocatorWorker' => 'PhabricatorWorker',
	+ 'DrydockAlmanacServiceHostBlueprintImplementation' => 'DrydockBlueprintImplementation',
	'DrydockApacheWebrootInterface' => 'DrydockWebrootInterface',
	'DrydockBlueprint' => array(
	'DrydockDAO',
	@@ -4564,7 +4565,6 @@
	'DrydockLogQuery' => 'DrydockQuery',
	'DrydockLogSearchEngine' => 'PhabricatorApplicationSearchEngine',
	'DrydockManagementCloseWorkflow' => 'DrydockManagementWorkflow',
	- 'DrydockManagementCreateResourceWorkflow' => 'DrydockManagementWorkflow',
	'DrydockManagementLeaseWorkflow' => 'DrydockManagementWorkflow',
	'DrydockManagementReleaseWorkflow' => 'DrydockManagementWorkflow',
	'DrydockManagementWorkflow' => 'PhabricatorManagementWorkflow',
	diff --git a/src/applications/drydock/blueprint/DrydockAlmanacServiceHostBlueprintImplementation.php b/src/applications/drydock/blueprint/DrydockAlmanacServiceHostBlueprintImplementation.php
	new file mode 100644
	--- /dev/null
	+++ b/src/applications/drydock/blueprint/DrydockAlmanacServiceHostBlueprintImplementation.php
	@@ -0,0 +1,234 @@
	+<?php
	+
	+final class DrydockAlmanacServiceHostBlueprintImplementation
	+ extends DrydockBlueprintImplementation {
	+
	+ private $services;
	+ private $freeBindings;
	+
	+ public function isEnabled() {
	+ $almanac_app = 'PhabricatorAlmanacApplication';
	+ return PhabricatorApplication::isClassInstalled($almanac_app);
	+ }
	+
	+ public function getBlueprintName() {
	+ return pht('Almanac Hosts');
	+ }
	+
	+ public function getDescription() {
	+ return pht(
	+ 'Allows Drydock to lease existing hosts defined in an Almanac service '.
	+ 'pool.');
	+ }
	+
	+ public function canAnyBlueprintEverAllocateResourceForLease(
	+ DrydockLease $lease) {
	+ return true;
	+ }
	+
	+ public function canEverAllocateResourceForLease(
	+ DrydockBlueprint $blueprint,
	+ DrydockLease $lease) {
	+ $services = $this->loadServices($blueprint);
	+ $bindings = $this->loadAllBindings($services);
	+
	+ if (!$bindings) {
	+ // If there are no devices bound to the services for this blueprint,
	+ // we can not allocate resources.
	+ return false;
	+ }
	+
	+ return true;
	+ }
	+
	+ public function canAllocateResourceForLease(
	+ DrydockBlueprint $blueprint,
	+ DrydockLease $lease) {
	+
	+ // We will only allocate one resource per unique device bound to the
	+ // services for this blueprint. Make sure we have a free device somewhere.
	+ $free_bindings = $this->loadFreeBindings($blueprint);
	+ if (!$free_bindings) {
	+ return false;
	+ }
	+
	+ return true;
	+ }
	+
	+ public function allocateResource(
	+ DrydockBlueprint $blueprint,
	+ DrydockLease $lease) {
	+
	+ $free_bindings = $this->loadFreeBindings($blueprint);
	+ shuffle($free_bindings);
	+
	+ $exceptions = array();
	+ foreach ($free_bindings as $binding) {
	+ $device = $binding->getDevice();
	+ $device_name = $device->getName();
	+
	+ $resource = $this->newResourceTemplate($blueprint, $device_name)
	+ ->setActivateWhenAllocated(true)
	+ ->setAttribute('almanacServicePHID', $binding->getServicePHID())
	+ ->setAttribute('almanacBindingPHID', $binding->getPHID());
	+
	+ // TODO: This algorithm can race, and the "free" binding may not be
	+ // free by the time we acquire it. Do slot-locking here if that works
	+ // out, or some other kind of locking if it does not.
	+
	+ try {
	+ return $resource->allocateResource(DrydockResourceStatus::STATUS_OPEN);
	+ } catch (Exception $ex) {
	+ $exceptions[] = $ex;
	+ }
	+ }
	+
	+ throw new PhutilAggregateException(
	+ pht('Unable to allocate any binding as a resource.'),
	+ $exceptions);
	+ }
	+
	+ public function canAcquireLeaseOnResource(
	+ DrydockBlueprint $blueprint,
	+ DrydockResource $resource,
	+ DrydockLease $lease) {
	+
	+ // TODO: We'll currently lease each resource an unlimited number of times,
	+ // but should stop doing that.
	+
	+ return true;
	+ }
	+
	+ public function acquireLease(
	+ DrydockBlueprint $blueprint,
	+ DrydockResource $resource,
	+ DrydockLease $lease) {
	+
	+ // TODO: Once we have limit rules, we should perform slot locking (or other
	+ // kinds of locking) here.
	+
	+ $lease
	+ ->setActivateWhenAcquired(true)
	+ ->acquireOnResource($resource);
	+ }
	+
	+ public function getType() {
	+ return 'host';
	+ }
	+
	+ public function getInterface(
	+ DrydockResource $resource,
	+ DrydockLease $lease,
	+ $type) {
	+ // TODO: Actually do stuff here, this needs work and currently makes this
	+ // entire exercise pointless.
	+ }
	+
	+ public function getFieldSpecifications() {
	+ return array(
	+ 'almanacServicePHIDs' => array(
	+ 'name' => pht('Almanac Services'),
	+ 'type' => 'datasource',
	+ 'datasource.class' => 'AlmanacServiceDatasource',
	+ 'datasource.parameters' => array(
	+ 'serviceClasses' => $this->getAlmanacServiceClasses(),
	+ ),
	+ 'required' => true,
	+ ),
	+ 'credentialPHID' => array(
	+ 'name' => pht('Credentials'),
	+ 'type' => 'credential',
	+ 'credential.provides' =>
	+ PassphraseSSHPrivateKeyCredentialType::PROVIDES_TYPE,
	+ 'credential.type' =>
	+ PassphraseSSHPrivateKeyTextCredentialType::CREDENTIAL_TYPE,
	+ ),
	+ ) + parent::getFieldSpecifications();
	+ }
	+
	+ private function loadServices(DrydockBlueprint $blueprint) {
	+ if (!$this->services) {
	+ $service_phids = $blueprint->getFieldValue('almanacServicePHIDs');
	+ if (!$service_phids) {
	+ throw new Exception(
	+ pht(
	+ 'This blueprint ("%s") does not define any Almanac Service PHIDs.',
	+ $blueprint->getBlueprintName()));
	+ }
	+
	+ $viewer = PhabricatorUser::getOmnipotentUser();
	+ $services = id(new AlmanacServiceQuery())
	+ ->setViewer($viewer)
	+ ->withPHIDs($service_phids)
	+ ->withServiceClasses($this->getAlmanacServiceClasses())
	+ ->needBindings(true)
	+ ->execute();
	+ $services = mpull($services, null, 'getPHID');
	+
	+ if (count($services) != count($service_phids)) {
	+ $missing_phids = array_diff($service_phids, array_keys($services));
	+ throw new Exception(
	+ pht(
	+ 'Some of the Almanac Services defined by this blueprint '.
	+ 'could not be loaded. They may be invalid, no longer exist, '.
	+ 'or be of the wrong type: %s.',
	+ implode(', ', $missing_phids)));
	+ }
	+
	+ $this->services = $services;
	+ }
	+
	+ return $this->services;
	+ }
	+
	+ private function loadAllBindings(array $services) {
	+ assert_instances_of($services, 'AlmanacService');
	+ $bindings = array_mergev(mpull($services, 'getBindings'));
	+ return mpull($bindings, null, 'getPHID');
	+ }
	+
	+ private function loadFreeBindings(DrydockBlueprint $blueprint) {
	+ if ($this->freeBindings === null) {
	+ $viewer = PhabricatorUser::getOmnipotentUser();
	+
	+ $pool = id(new DrydockResourceQuery())
	+ ->setViewer($viewer)
	+ ->withBlueprintPHIDs(array($blueprint->getPHID()))
	+ ->withStatuses(
	+ array(
	+ DrydockResourceStatus::STATUS_PENDING,
	+ DrydockResourceStatus::STATUS_OPEN,
	+ DrydockResourceStatus::STATUS_CLOSED,
	+ ))
	+ ->execute();
	+
	+ $allocated_phids = array();
	+ foreach ($pool as $resource) {
	+ $allocated_phids[] = $resource->getAttribute('almanacDevicePHID');
	+ }
	+ $allocated_phids = array_fuse($allocated_phids);
	+
	+ $services = $this->loadServices($blueprint);
	+ $bindings = $this->loadAllBindings($services);
	+
	+ $free = array();
	+ foreach ($bindings as $binding) {
	+ if (empty($allocated_phids[$binding->getPHID()])) {
	+ $free[] = $binding;
	+ }
	+ }
	+
	+ $this->freeBindings = $free;
	+ }
	+
	+ return $this->freeBindings;
	+ }
	+
	+ private function getAlmanacServiceClasses() {
	+ return array(
	+ 'AlmanacDrydockPoolServiceType',
	+ );
	+ }
	+
	+
	+}
	diff --git a/src/applications/drydock/blueprint/DrydockBlueprintImplementation.php b/src/applications/drydock/blueprint/DrydockBlueprintImplementation.php
	--- a/src/applications/drydock/blueprint/DrydockBlueprintImplementation.php
	+++ b/src/applications/drydock/blueprint/DrydockBlueprintImplementation.php
	@@ -60,10 +60,6 @@
	return array();
	}

	- public function getDetail($key, $default = null) {
	- return $this->getInstance()->getDetail($key, $default);
	- }
	-

	/* -( Lease Acquisition )-------------------------------------------------- */

	@@ -86,171 +82,29 @@
	* @return bool True if the resource and lease are compatible.
	* @task lease
	*/
	- abstract public function canAllocateLeaseOnResource(
	+ abstract public function canAcquireLeaseOnResource(
	DrydockBlueprint $blueprint,
	DrydockResource $resource,
	DrydockLease $lease);


	/**
	- * @task lease
	- */
	- final public function allocateLease(
	- DrydockResource $resource,
	- DrydockLease $lease) {
	-
	- $scope = $this->pushActiveScope($resource, $lease);
	-
	- $this->log(pht('Trying to Allocate Lease'));
	-
	- $lease->setStatus(DrydockLeaseStatus::STATUS_ACQUIRING);
	- $lease->setResourceID($resource->getID());
	- $lease->attachResource($resource);
	-
	- $ephemeral_lease = id(clone $lease)->makeEphemeral();
	-
	- $allocated = false;
	- $allocation_exception = null;
	-
	- $resource->openTransaction();
	- $resource->beginReadLocking();
	- $resource->reload();
	-
	- // TODO: Policy stuff.
	- $other_leases = id(new DrydockLease())->loadAllWhere(
	- 'status IN (%Ld) AND resourceID = %d',
	- array(
	- DrydockLeaseStatus::STATUS_ACQUIRING,
	- DrydockLeaseStatus::STATUS_ACTIVE,
	- ),
	- $resource->getID());
	-
	- try {
	- $allocated = $this->shouldAllocateLease(
	- $resource,
	- $ephemeral_lease,
	- $other_leases);
	- } catch (Exception $ex) {
	- $allocation_exception = $ex;
	- }
	-
	- if ($allocated) {
	- $lease->save();
	- }
	- $resource->endReadLocking();
	- if ($allocated) {
	- $resource->saveTransaction();
	- $this->log(pht('Allocated Lease'));
	- } else {
	- $resource->killTransaction();
	- $this->log(pht('Failed to Allocate Lease'));
	- }
	-
	- if ($allocation_exception) {
	- $this->logException($allocation_exception);
	- }
	-
	- return $allocated;
	- }
	-
	-
	- /**
	- * Enforce lease limits on resources. Allows resources to reject leases if
	- * they would become over-allocated by accepting them.
	- *
	- * For example, if a resource represents disk space, this method might check
	- * how much space the lease is asking for (say, 200MB) and how much space is
	- * left unallocated on the resource. It could grant the lease (return true)
	- * if it has enough remaining space (more than 200MB), and reject the lease
	- * (return false) if it does not (less than 200MB).
	- *
	- * A resource might also allow only exclusive leases. In this case it could
	- * accept a new lease (return true) if there are no active leases, or reject
	- * the new lease (return false) if there any other leases.
	- *
	- * A lock is held on the resource while this method executes to prevent
	- * multiple processes from allocating leases on the resource simultaneously.
	- * However, this means you should implement the method as cheaply as possible.
	- * In particular, do not perform any actual acquisition or setup in this
	- * method.
	- *
	- * If allocation is permitted, the lease will be moved to `ACQUIRING` status
	- * and @{method:executeAcquireLease} will be called to actually perform
	- * acquisition.
	- *
	- * General compatibility checks unrelated to resource limits and capacity are
	- * better implemented in @{method:canAllocateLease}, which serves as a
	- * cheap filter before lock acquisition.
	- *
	- * @param DrydockResource Candidate resource to allocate the lease on.
	- * @param DrydockLease Pending lease that wants to allocate here.
	- * @param list<DrydockLease> Other allocated and acquired leases on the
	- * resource. The implementation can inspect them
	- * to verify it can safely add the new lease.
	- * @return bool True to allocate the lease on the resource;
	- * false to reject it.
	- * @task lease
	- */
	- abstract protected function shouldAllocateLease(
	- DrydockResource $resource,
	- DrydockLease $lease,
	- array $other_leases);
	-
	-
	- /**
	- * @task lease
	- */
	- final public function acquireLease(
	- DrydockResource $resource,
	- DrydockLease $lease) {
	-
	- $scope = $this->pushActiveScope($resource, $lease);
	-
	- $this->log(pht('Acquiring Lease'));
	- $lease->setStatus(DrydockLeaseStatus::STATUS_ACTIVE);
	- $lease->setResourceID($resource->getID());
	- $lease->attachResource($resource);
	-
	- $ephemeral_lease = id(clone $lease)->makeEphemeral();
	-
	- try {
	- $this->executeAcquireLease($resource, $ephemeral_lease);
	- } catch (Exception $ex) {
	- $this->logException($ex);
	- throw $ex;
	- }
	-
	- $lease->setAttributes($ephemeral_lease->getAttributes());
	- $lease->save();
	- $this->log(pht('Acquired Lease'));
	- }
	-
	-
	- /**
	- * Acquire and activate an allocated lease. Allows resources to peform setup
	- * as leases are brought online.
	- *
	- * Following a successful call to @{method:canAllocateLease}, a lease is moved
	- * to `ACQUIRING` status and this method is called after resource locks are
	- * released. Nothing is locked while this method executes; the implementation
	- * is free to perform expensive operations like writing files and directories,
	- * executing commands, etc.
	- *
	- * After this method executes, the lease status is moved to `ACTIVE` and the
	- * original leasee may access it.
	+ * Acquire a lease. Allows resources to peform setup as leases are brought
	+ * online.
	*
	* If acquisition fails, throw an exception.
	*
	- * @param DrydockResource Resource to acquire a lease on.
	- * @param DrydockLease Lease to acquire.
	- * @return void
	+ * @param DrydockBlueprint Blueprint which built the resource.
	+ * @param DrydockResource Resource to acquire a lease on.
	+ * @param DrydockLease Requested lease.
	+ * @return void
	+ * @task lease
	*/
	- abstract protected function executeAcquireLease(
	+ abstract public function acquireLease(
	+ DrydockBlueprint $blueprint,
	DrydockResource $resource,
	DrydockLease $lease);

	-
	-
	final public function releaseLease(
	DrydockResource $resource,
	DrydockLease $lease) {
	@@ -352,6 +206,7 @@
	* @param DrydockLease Requested lease.
	* @return bool True if this blueprint appears likely to be able to allocate
	* a suitable resource.
	+ * @task resource
	*/
	abstract public function canAllocateResourceForLease(
	DrydockBlueprint $blueprint,
	@@ -369,34 +224,12 @@
	* @param DrydockBlueprint The blueprint which should allocate a resource.
	* @param DrydockLease Requested lease.
	* @return DrydockResource Allocated resource.
	+ * @task resource
	*/
	- abstract protected function executeAllocateResource(
	+ abstract public function allocateResource(
	DrydockBlueprint $blueprint,
	DrydockLease $lease);

	- final public function allocateResource(
	- DrydockBlueprint $blueprint,
	- DrydockLease $lease) {
	-
	- $scope = $this->pushActiveScope(null, $lease);
	-
	- $this->log(
	- pht(
	- "Blueprint '%s': Allocating Resource for '%s'",
	- $this->getBlueprintClass(),
	- $lease->getLeaseName()));
	-
	- try {
	- $resource = $this->executeAllocateResource($blueprint, $lease);
	- $this->validateAllocatedResource($resource);
	- } catch (Exception $ex) {
	- $this->logException($ex);
	- throw $ex;
	- }
	-
	- return $resource;
	- }
	-

	/* -( Logging )------------------------------------------------------------ */

	@@ -454,14 +287,15 @@
	return idx(self::getAllBlueprintImplementations(), $class);
	}

	- protected function newResourceTemplate($name) {
	+ protected function newResourceTemplate(
	+ DrydockBlueprint $blueprint,
	+ $name) {
	+
	$resource = id(new DrydockResource())
	- ->setBlueprintPHID($this->getInstance()->getPHID())
	- ->setBlueprintClass($this->getBlueprintClass())
	+ ->setBlueprintPHID($blueprint->getPHID())
	->setType($this->getType())
	->setStatus(DrydockResourceStatus::STATUS_PENDING)
	- ->setName($name)
	- ->save();
	+ ->setName($name);

	$this->activeResource = $resource;

	@@ -473,39 +307,6 @@
	return $resource;
	}

	- /**
	- * Sanity checks that the blueprint is implemented properly.
	- */
	- private function validateAllocatedResource($resource) {
	- $blueprint = $this->getBlueprintClass();
	-
	- if (!($resource instanceof DrydockResource)) {
	- throw new Exception(
	- pht(
	- "Blueprint '%s' is not properly implemented: %s must return an ".
	- "object of type %s or throw, but returned something else.",
	- $blueprint,
	- 'executeAllocateResource()',
	- 'DrydockResource'));
	- }
	-
	- $current_status = $resource->getStatus();
	- $req_status = DrydockResourceStatus::STATUS_OPEN;
	- if ($current_status != $req_status) {
	- $current_name = DrydockResourceStatus::getNameForStatus($current_status);
	- $req_name = DrydockResourceStatus::getNameForStatus($req_status);
	- throw new Exception(
	- pht(
	- "Blueprint '%s' is not properly implemented: %s must return a %s ".
	- "with status '%s', but returned one with status '%s'.",
	- $blueprint,
	- 'executeAllocateResource()',
	- 'DrydockResource',
	- $req_name,
	- $current_name));
	- }
	- }
	-
	private function pushActiveScope(
	DrydockResource $resource = null,
	DrydockLease $lease = null) {
	diff --git a/src/applications/drydock/blueprint/DrydockWorkingCopyBlueprintImplementation.php b/src/applications/drydock/blueprint/DrydockWorkingCopyBlueprintImplementation.php
	--- a/src/applications/drydock/blueprint/DrydockWorkingCopyBlueprintImplementation.php
	+++ b/src/applications/drydock/blueprint/DrydockWorkingCopyBlueprintImplementation.php
	@@ -35,7 +35,7 @@
	return true;
	}

	- public function canAllocateLeaseOnResource(
	+ public function canAcquireLeaseOnResource(
	DrydockBlueprint $blueprint,
	DrydockResource $resource,
	DrydockLease $lease) {
	@@ -47,15 +47,7 @@
	return ($resource_repo && $lease_repo && ($resource_repo == $lease_repo));
	}

	- protected function shouldAllocateLease(
	- DrydockResource $resource,
	- DrydockLease $lease,
	- array $other_leases) {
	- // TODO: These checks are out of date.
	- return !$other_leases;
	- }
	-
	- protected function executeAllocateResource(
	+ public function allocateResource(
	DrydockBlueprint $blueprint,
	DrydockLease $lease) {

	@@ -105,6 +97,7 @@
	$this->log(pht('Complete.'));

	$resource = $this->newResourceTemplate(
	+ $blueprint,
	pht(
	'Working Copy (%s)',
	$repository->getCallsign()));
	@@ -117,7 +110,8 @@
	return $resource;
	}

	- protected function executeAcquireLease(
	+ public function acquireLease(
	+ DrydockBlueprint $blueprint,
	DrydockResource $resource,
	DrydockLease $lease) {
	return;
	diff --git a/src/applications/drydock/constants/DrydockLeaseStatus.php b/src/applications/drydock/constants/DrydockLeaseStatus.php
	--- a/src/applications/drydock/constants/DrydockLeaseStatus.php
	+++ b/src/applications/drydock/constants/DrydockLeaseStatus.php
	@@ -3,7 +3,7 @@
	final class DrydockLeaseStatus extends DrydockConstants {

	const STATUS_PENDING = 0;
	- const STATUS_ACQUIRING = 5;
	+ const STATUS_ACQUIRED = 5;
	const STATUS_ACTIVE = 1;
	const STATUS_RELEASED = 2;
	const STATUS_BROKEN = 3;
	@@ -12,7 +12,7 @@
	public static function getNameForStatus($status) {
	$map = array(
	self::STATUS_PENDING => pht('Pending'),
	- self::STATUS_ACQUIRING => pht('Acquiring'),
	+ self::STATUS_ACQUIRED => pht('Acquired'),
	self::STATUS_ACTIVE => pht('Active'),
	self::STATUS_RELEASED => pht('Released'),
	self::STATUS_BROKEN => pht('Broken'),
	@@ -25,7 +25,7 @@
	public static function getAllStatuses() {
	return array(
	self::STATUS_PENDING,
	- self::STATUS_ACQUIRING,
	+ self::STATUS_ACQUIRED,
	self::STATUS_ACTIVE,
	self::STATUS_RELEASED,
	self::STATUS_BROKEN,
	diff --git a/src/applications/drydock/customfield/DrydockBlueprintCoreCustomField.php b/src/applications/drydock/customfield/DrydockBlueprintCoreCustomField.php
	--- a/src/applications/drydock/customfield/DrydockBlueprintCoreCustomField.php
	+++ b/src/applications/drydock/customfield/DrydockBlueprintCoreCustomField.php
	@@ -40,4 +40,8 @@
	return;
	}

	+ public function getBlueprintFieldValue() {
	+ return $this->getProxy()->getFieldValue();
	+ }
	+
	}
	diff --git a/src/applications/drydock/customfield/DrydockBlueprintCustomField.php b/src/applications/drydock/customfield/DrydockBlueprintCustomField.php
	--- a/src/applications/drydock/customfield/DrydockBlueprintCustomField.php
	+++ b/src/applications/drydock/customfield/DrydockBlueprintCustomField.php
	@@ -1,4 +1,8 @@
	<?php

	abstract class DrydockBlueprintCustomField
	- extends PhabricatorCustomField {}
	+ extends PhabricatorCustomField {
	+
	+ abstract public function getBlueprintFieldValue();
	+
	+}
	diff --git a/src/applications/drydock/management/DrydockManagementCreateResourceWorkflow.php b/src/applications/drydock/management/DrydockManagementCreateResourceWorkflow.php
	deleted file mode 100644
	--- a/src/applications/drydock/management/DrydockManagementCreateResourceWorkflow.php
	+++ /dev/null
	@@ -1,81 +0,0 @@
	-<?php
	-
	-final class DrydockManagementCreateResourceWorkflow
	- extends DrydockManagementWorkflow {
	-
	- protected function didConstruct() {
	- $this
	- ->setName('create-resource')
	- ->setSynopsis(pht('Create a resource manually.'))
	- ->setArguments(
	- array(
	- array(
	- 'name' => 'name',
	- 'param' => 'resource_name',
	- 'help' => pht('Resource name.'),
	- ),
	- array(
	- 'name' => 'blueprint',
	- 'param' => 'blueprint_id',
	- 'help' => pht('Blueprint ID.'),
	- ),
	- array(
	- 'name' => 'attributes',
	- 'param' => 'name=value,...',
	- 'help' => pht('Resource attributes.'),
	- ),
	- ));
	- }
	-
	- public function execute(PhutilArgumentParser $args) {
	- $console = PhutilConsole::getConsole();
	-
	- $resource_name = $args->getArg('name');
	- if (!$resource_name) {
	- throw new PhutilArgumentUsageException(
	- pht(
	- 'Specify a resource name with `%s`.',
	- '--name'));
	- }
	-
	- $blueprint_id = $args->getArg('blueprint');
	- if (!$blueprint_id) {
	- throw new PhutilArgumentUsageException(
	- pht(
	- 'Specify a blueprint ID with `%s`.',
	- '--blueprint'));
	- }
	-
	- $attributes = $args->getArg('attributes');
	- if ($attributes) {
	- $options = new PhutilSimpleOptions();
	- $options->setCaseSensitive(true);
	- $attributes = $options->parse($attributes);
	- }
	-
	- $viewer = $this->getViewer();
	-
	- $blueprint = id(new DrydockBlueprintQuery())
	- ->setViewer($viewer)
	- ->withIDs(array($blueprint_id))
	- ->executeOne();
	- if (!$blueprint) {
	- throw new PhutilArgumentUsageException(
	- pht('Specified blueprint does not exist.'));
	- }
	-
	- $resource = id(new DrydockResource())
	- ->setBlueprintPHID($blueprint->getPHID())
	- ->setType($blueprint->getImplementation()->getType())
	- ->setName($resource_name)
	- ->setStatus(DrydockResourceStatus::STATUS_OPEN);
	- if ($attributes) {
	- $resource->setAttributes($attributes);
	- }
	- $resource->save();
	-
	- $console->writeOut("%s\n", pht('Created Resource %s', $resource->getID()));
	- return 0;
	- }
	-
	-}
	diff --git a/src/applications/drydock/query/DrydockLeaseSearchEngine.php b/src/applications/drydock/query/DrydockLeaseSearchEngine.php
	--- a/src/applications/drydock/query/DrydockLeaseSearchEngine.php
	+++ b/src/applications/drydock/query/DrydockLeaseSearchEngine.php
	@@ -74,7 +74,7 @@
	'statuses',
	array(
	DrydockLeaseStatus::STATUS_PENDING,
	- DrydockLeaseStatus::STATUS_ACQUIRING,
	+ DrydockLeaseStatus::STATUS_ACQUIRED,
	DrydockLeaseStatus::STATUS_ACTIVE,
	));
	case 'all':
	diff --git a/src/applications/drydock/storage/DrydockBlueprint.php b/src/applications/drydock/storage/DrydockBlueprint.php
	--- a/src/applications/drydock/storage/DrydockBlueprint.php
	+++ b/src/applications/drydock/storage/DrydockBlueprint.php
	@@ -1,5 +1,9 @@
	<?php

	+/**
	+ * @task resource Allocating Resources
	+ * @task lease Acquiring Leases
	+ */
	final class DrydockBlueprint extends DrydockDAO
	implements
	PhabricatorApplicationTransactionInterface,
	@@ -14,6 +18,7 @@

	private $implementation = self::ATTACHABLE;
	private $customFields = self::ATTACHABLE;
	+ private $fields = null;

	public static function initializeNewBlueprint(PhabricatorUser $actor) {
	$app = id(new PhabricatorApplicationQuery())
	@@ -68,27 +73,96 @@
	return $this;
	}

	+ public function getFieldValue($key) {
	+ $key = "std:drydock:core:{$key}";
	+ $fields = $this->loadCustomFields();
	+
	+ $field = idx($fields, $key);
	+ if (!$field) {
	+ throw new Exception(
	+ pht(
	+ 'Unknown blueprint field "%s"!',
	+ $key));
	+ }
	+
	+ return $field->getBlueprintFieldValue();
	+ }
	+
	+ private function loadCustomFields() {
	+ if ($this->fields === null) {
	+ $field_list = PhabricatorCustomField::getObjectFields(
	+ $this,
	+ PhabricatorCustomField::ROLE_VIEW);
	+ $field_list->readFieldsFromStorage($this);
	+
	+ $this->fields = $field_list->getFields();
	+ }
	+ return $this->fields;
	+ }
	+
	+
	+/* -( Allocating Resources )----------------------------------------------- */
	+
	+
	+ /**
	+ * @task resource
	+ */
	public function canEverAllocateResourceForLease(DrydockLease $lease) {
	return $this->getImplementation()->canEverAllocateResourceForLease(
	$this,
	$lease);
	}

	+
	+ /**
	+ * @task resource
	+ */
	public function canAllocateResourceForLease(DrydockLease $lease) {
	return $this->getImplementation()->canAllocateResourceForLease(
	$this,
	$lease);
	}

	- public function canAllocateLeaseOnResource(
	+
	+ /**
	+ * @task resource
	+ */
	+ public function allocateResource(DrydockLease $lease) {
	+ return $this->getImplementation()->allocateResource(
	+ $this,
	+ $lease);
	+ }
	+
	+
	+/* -( Acquiring Leases )--------------------------------------------------- */
	+
	+
	+ /**
	+ * @task lease
	+ */
	+ public function canAcquireLeaseOnResource(
	DrydockResource $resource,
	DrydockLease $lease) {
	- return $this->getImplementation()->canAllocateLeaseOnResource(
	+ return $this->getImplementation()->canAcquireLeaseOnResource(
	$this,
	$resource,
	$lease);
	}

	+
	+ /**
	+ * @task lease
	+ */
	+ public function acquireLease(
	+ DrydockResource $resource,
	+ DrydockLease $lease) {
	+ return $this->getImplementation()->acquireLease(
	+ $this,
	+ $resource,
	+ $lease);
	+ }
	+
	+
	/* -( PhabricatorApplicationTransactionInterface )------------------------- */


	diff --git a/src/applications/drydock/storage/DrydockLease.php b/src/applications/drydock/storage/DrydockLease.php
	--- a/src/applications/drydock/storage/DrydockLease.php
	+++ b/src/applications/drydock/storage/DrydockLease.php
	@@ -13,6 +13,8 @@

	private $resource = self::ATTACHABLE;
	private $releaseOnDestruction;
	+ private $isAcquired = false;
	+ private $activateWhenAcquired = false;

	/**
	* Flag this lease to be released when its destructor is called. This is
	@@ -133,8 +135,8 @@

	public function isActive() {
	switch ($this->status) {
	+ case DrydockLeaseStatus::STATUS_ACQUIRED:
	case DrydockLeaseStatus::STATUS_ACTIVE:
	- case DrydockLeaseStatus::STATUS_ACQUIRING:
	return true;
	}
	return false;
	@@ -171,7 +173,7 @@
	case DrydockLeaseStatus::STATUS_BROKEN:
	throw new Exception(pht('Lease has been broken!'));
	case DrydockLeaseStatus::STATUS_PENDING:
	- case DrydockLeaseStatus::STATUS_ACQUIRING:
	+ case DrydockLeaseStatus::STATUS_ACQUIRED:
	break;
	default:
	throw new Exception(pht('Unknown status??'));
	@@ -199,6 +201,53 @@
	return $this;
	}

	+ public function setActivateWhenAcquired($activate) {
	+ $this->activateWhenAcquired = true;
	+ return $this;
	+ }
	+
	+ public function acquireOnResource(DrydockResource $resource) {
	+ $expect_status = DrydockLeaseStatus::STATUS_PENDING;
	+ $actual_status = $this->getStatus();
	+ if ($actual_status != $expect_status) {
	+ throw new Exception(
	+ pht(
	+ 'Trying to acquire a lease on a resource which is in the wrong '.
	+ 'state: status must be "%s", actually "%s".',
	+ $expect_status,
	+ $actual_status));
	+ }
	+
	+ if ($this->activateWhenAcquired) {
	+ $new_status = DrydockLeaseStatus::STATUS_ACTIVE;
	+ } else {
	+ $new_status = DrydockLeaseStatus::STATUS_PENDING;
	+ }
	+
	+ if ($new_status === DrydockLeaseStatus::STATUS_ACTIVE) {
	+ if ($resource->getStatus() === DrydockResourceStatus::STATUS_PENDING) {
	+ throw new Exception(
	+ pht(
	+ 'Trying to acquire an active lease on a pending resource. '.
	+ 'You can not immediately activate leases on resources which '.
	+ 'need time to start up.'));
	+ }
	+ }
	+
	+ $this
	+ ->setResourceID($resource->getID())
	+ ->setStatus($new_status)
	+ ->save();
	+
	+ $this->isAcquired = true;
	+
	+ return $this;
	+ }
	+
	+ public function isAcquiredLease() {
	+ return $this->isAcquired;
	+ }
	+

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

	diff --git a/src/applications/drydock/storage/DrydockResource.php b/src/applications/drydock/storage/DrydockResource.php
	--- a/src/applications/drydock/storage/DrydockResource.php
	+++ b/src/applications/drydock/storage/DrydockResource.php
	@@ -15,6 +15,8 @@
	protected $ownerPHID;

	private $blueprint = self::ATTACHABLE;
	+ private $isAllocated = false;
	+ private $activateWhenAllocated = false;

	protected function getConfiguration() {
	return array(
	@@ -73,10 +75,47 @@
	return $this;
	}

	- public function canAllocateLease(DrydockLease $lease) {
	- return $this->getBlueprint()->canAllocateLeaseOnResource(
	- $this,
	- $lease);
	+ public function setActivateWhenAllocated($activate) {
	+ $this->activateWhenAllocated = $activate;
	+ return $this;
	+ }
	+
	+ public function allocateResource($status) {
	+ if ($this->getID()) {
	+ throw new Exception(
	+ pht(
	+ 'Trying to allocate a resource which has already been persisted. '.
	+ 'Only new resources may be allocated.'));
	+ }
	+
	+ $expect_status = DrydockResourceStatus::STATUS_PENDING;
	+ $actual_status = $this->getStatus();
	+ if ($actual_status != $expect_status) {
	+ throw new Exception(
	+ pht(
	+ 'Trying to allocate a resource from the wrong status. Status must '.
	+ 'be "%s", actually "%s".',
	+ $expect_status,
	+ $actual_status));
	+ }
	+
	+ if ($this->activateWhenAllocated) {
	+ $new_status = DrydockResourceStatus::STATUS_OPEN;
	+ } else {
	+ $new_status = DrydockResourceStatus::STATUS_PENDING;
	+ }
	+
	+ $this
	+ ->setStatus($new_status)
	+ ->save();
	+
	+ $this->didAllocate = true;
	+
	+ return $this;
	+ }
	+
	+ public function isAllocatedResource() {
	+ return $this->isAllocated;
	}

	public function closeResource() {
	diff --git a/src/applications/drydock/worker/DrydockAllocatorWorker.php b/src/applications/drydock/worker/DrydockAllocatorWorker.php
	--- a/src/applications/drydock/worker/DrydockAllocatorWorker.php
	+++ b/src/applications/drydock/worker/DrydockAllocatorWorker.php
	@@ -1,5 +1,10 @@
	<?php

	+/**
	+ * @task allocate Allocator
	+ * @task resource Managing Resources
	+ * @task lease Managing Leases
	+ */
	final class DrydockAllocatorWorker extends PhabricatorWorker {

	private function getViewer() {
	@@ -27,10 +32,22 @@

	protected function doWork() {
	$lease = $this->loadLease();
	- $this->allocateLease($lease);
	+ $this->allocateAndAcquireLease($lease);
	}

	- private function allocateLease(DrydockLease $lease) {
	+
	+/* -( Allocator )---------------------------------------------------------- */
	+
	+
	+ /**
	+ * Find or build a resource which can satisfy a given lease request, then
	+ * acquire the lease.
	+ *
	+ * @param DrydockLease Requested lease.
	+ * @return void
	+ * @task allocator
	+ */
	+ private function allocateAndAcquireLease(DrydockLease $lease) {
	$blueprints = $this->loadBlueprintsForAllocatingLease($lease);

	// If we get nothing back, that means no blueprint is defined which can
	@@ -72,7 +89,8 @@
	$exceptions = array();
	foreach ($usable_blueprints as $blueprint) {
	try {
	- $resources[] = $blueprint->allocateResource($lease);
	+ $resources[] = $this->allocateResource($blueprint, $lease);
	+
	// Bail after allocating one resource, we don't need any more than
	// this.
	break;
	@@ -106,7 +124,7 @@
	$allocated = false;
	foreach ($resources as $resource) {
	try {
	- $blueprint->allocateLease($resource, $lease);
	+ $this->acquireLease($resource, $lease);
	$allocated = true;
	break;
	} catch (Exception $ex) {
	@@ -129,6 +147,86 @@


	/**
	+ * Get all the @{class:DrydockBlueprintImplementation}s which can possibly
	+ * build a resource to satisfy a lease.
	+ *
	+ * This method returns blueprints which might, at some time, be able to
	+ * build a resource which can satisfy the lease. They may not be able to
	+ * build that resource right now.
	+ *
	+ * @param DrydockLease Requested lease.
	+ * @return list<DrydockBlueprintImplementation> List of qualifying blueprint
	+ * implementations.
	+ * @task allocator
	+ */
	+ private function loadBlueprintImplementationsForAllocatingLease(
	+ DrydockLease $lease) {
	+
	+ $impls = DrydockBlueprintImplementation::getAllBlueprintImplementations();
	+
	+ $keep = array();
	+ foreach ($impls as $key => $impl) {
	+ // Don't use disabled blueprint types.
	+ if (!$impl->isEnabled()) {
	+ continue;
	+ }
	+
	+ // Don't use blueprint types which can't allocate the correct kind of
	+ // resource.
	+ if ($impl->getType() != $lease->getResourceType()) {
	+ continue;
	+ }
	+
	+ if (!$impl->canAnyBlueprintEverAllocateResourceForLease($lease)) {
	+ continue;
	+ }
	+
	+ $keep[$key] = $impl;
	+ }
	+
	+ return $keep;
	+ }
	+
	+
	+ /**
	+ * Get all the concrete @{class:DrydockBlueprint}s which can possibly
	+ * build a resource to satisfy a lease.
	+ *
	+ * @param DrydockLease Requested lease.
	+ * @return list<DrydockBlueprint> List of qualifying blueprints.
	+ * @task allocator
	+ */
	+ private function loadBlueprintsForAllocatingLease(
	+ DrydockLease $lease) {
	+ $viewer = $this->getViewer();
	+
	+ $impls = $this->loadBlueprintImplementationsForAllocatingLease($lease);
	+ if (!$impls) {
	+ return array();
	+ }
	+
	+ // TODO: When blueprints can be disabled, this query should ignore disabled
	+ // blueprints.
	+
	+ $blueprints = id(new DrydockBlueprintQuery())
	+ ->setViewer($viewer)
	+ ->withBlueprintClasses(array_keys($impls))
	+ ->execute();
	+
	+ $keep = array();
	+ foreach ($blueprints as $key => $blueprint) {
	+ if (!$blueprint->canEverAllocateResourceForLease($lease)) {
	+ continue;
	+ }
	+
	+ $keep[$key] = $blueprint;
	+ }
	+
	+ return $keep;
	+ }
	+
	+
	+ /**
	* Load a list of all resources which a given lease can possibly be
	* allocated against.
	*
	@@ -137,6 +235,7 @@
	* @param DrydockLease Requested lease.
	* @return list<DrydockResource> Resources which may be able to allocate
	* the lease.
	+ * @task allocator
	*/
	private function loadResourcesForAllocatingLease(
	array $blueprints,
	@@ -157,7 +256,9 @@

	$keep = array();
	foreach ($resources as $key => $resource) {
	- if (!$resource->canAllocateLease($lease)) {
	+ $blueprint = $resource->getBlueprint();
	+
	+ if (!$blueprint->canAcquireLeaseOnResource($resource, $lease)) {
	continue;
	}

	@@ -169,12 +270,40 @@


	/**
	+ * Remove blueprints which are too heavily allocated to build a resource for
	+ * a lease from a list of blueprints.
	+ *
	+ * @param list<DrydockBlueprint> List of blueprints.
	+ * @return list<DrydockBlueprint> List with blueprints that can not allocate
	+ * a resource for the lease right now removed.
	+ * @task allocator
	+ */
	+ private function removeOverallocatedBlueprints(
	+ array $blueprints,
	+ DrydockLease $lease) {
	+ assert_instances_of($blueprints, 'DrydockBlueprint');
	+
	+ $keep = array();
	+ foreach ($blueprints as $key => $blueprint) {
	+ if (!$blueprint->canAllocateResourceForLease($lease)) {
	+ continue;
	+ }
	+
	+ $keep[$key] = $blueprint;
	+ }
	+
	+ return $keep;
	+ }
	+
	+
	+ /**
	* Rank blueprints by suitability for building a new resource for a
	* particular lease.
	*
	* @param list<DrydockBlueprint> List of blueprints.
	* @param DrydockLease Requested lease.
	* @return list<DrydockBlueprint> Ranked list of blueprints.
	+ * @task allocator
	*/
	private function rankBlueprints(array $blueprints, DrydockLease $lease) {
	assert_instances_of($blueprints, 'DrydockBlueprint');
	@@ -193,6 +322,7 @@
	* @param list<DrydockResource> List of resources.
	* @param DrydockLease Requested lease.
	* @return list<DrydockResource> Ranked list of resources.
	+ * @task allocator
	*/
	private function rankResources(array $resources, DrydockLease $lease) {
	assert_instances_of($resources, 'DrydockResource');
	@@ -205,107 +335,142 @@
	}


	+/* -( Managing Resources )------------------------------------------------- */
	+
	+
	/**
	- * Get all the concrete @{class:DrydockBlueprint}s which can possibly
	- * build a resource to satisfy a lease.
	+ * Perform an actual resource allocation with a particular blueprint.
	*
	+ * @param DrydockBlueprint The blueprint to allocate a resource from.
	* @param DrydockLease Requested lease.
	- * @return list<DrydockBlueprint> List of qualifying blueprints.
	+ * @return DrydockResource Allocated resource.
	+ * @task resource
	*/
	- private function loadBlueprintsForAllocatingLease(
	+ private function allocateResource(
	+ DrydockBlueprint $blueprint,
	DrydockLease $lease) {
	- $viewer = $this->getViewer();
	+ $resource = $blueprint->allocateResource($lease);
	+ $this->validateAllocatedResource($resource);
	+ return $resource;
	+ }

	- $impls = $this->loadBlueprintImplementationsForAllocatingLease($lease);
	- if (!$impls) {
	- return array();
	+
	+ /**
	+ * Check that the resource a blueprint allocated is roughly the sort of
	+ * object we expect.
	+ *
	+ * @param DrydockBlueprint Blueprint which built the resource.
	+ * @param wild Thing which the blueprint claims is a valid resource.
	+ * @param DrydockLease Lease the resource was allocated for.
	+ * @return void
	+ * @task resource
	+ */
	+ private function validateAllocatedResource(
	+ DrydockBlueprint $blueprint,
	+ $resource,
	+ DrydockLease $lease) {
	+ $blueprint = $this->getBlueprintClass();
	+
	+ if (!($resource instanceof DrydockResource)) {
	+ throw new Exception(
	+ pht(
	+ 'Blueprint "%s" (of type "%s") is not properly implemented: %s must '.
	+ 'return an object of type %s or throw, but returned something else.',
	+ $blueprint->getBlueprintName(),
	+ $blueprint->getClassName(),
	+ 'allocateResource()',
	+ 'DrydockResource'));
	}

	- // TODO: When blueprints can be disabled, this query should ignore disabled
	- // blueprints.
	+ if (!$resource->isAllocatedResource()) {
	+ throw new Exception(
	+ pht(
	+ 'Blueprint "%s" (of type "%s") is not properly implemented: %s '.
	+ 'must actually allocate the resource it returns.',
	+ $blueprint->getBlueprintName(),
	+ $blueprint->getClassName(),
	+ 'allocateResource()'));
	+ }

	- $blueprints = id(new DrydockBlueprintQuery())
	- ->setViewer($viewer)
	- ->withBlueprintClasses(array_keys($impls))
	- ->execute();
	+ $resource_type = $resource->getType();
	+ $lease_type = $lease->getResourceType();

	- $keep = array();
	- foreach ($blueprints as $key => $blueprint) {
	- if (!$blueprint->canEverAllocateResourceForLease($lease)) {
	- continue;
	- }
	+ if ($resource_type !== $lease_type) {
	+ // TODO: Destroy the resource here?

	- $keep[$key] = $blueprint;
	+ throw new Exception(
	+ pht(
	+ 'Blueprint "%s" (of type "%s") is not properly implemented: it '.
	+ 'built a resource of type "%s" to satisfy a lease requesting a '.
	+ 'resource of type "%s".',
	+ $blueprint->getBlueprintName(),
	+ $blueprint->getClassName(),
	+ $resource_type,
	+ $lease_type));
	}
	-
	- return $keep;
	}


	+/* -( Managing Leases )---------------------------------------------------- */
	+
	+
	/**
	- * Get all the @{class:DrydockBlueprintImplementation}s which can possibly
	- * build a resource to satisfy a lease.
	+ * Perform an actual lease acquisition on a particular resource.
	*
	- * This method returns blueprints which might, at some time, be able to
	- * build a resource which can satisfy the lease. They may not be able to
	- * build that resource right now.
	- *
	- * @param DrydockLease Requested lease.
	- * @return list<DrydockBlueprintImplementation> List of qualifying blueprint
	- * implementations.
	+ * @param DrydockResource Resource to acquire a lease on.
	+ * @param DrydockLease Lease to acquire.
	+ * @return void
	+ * @task lease
	*/
	- private function loadBlueprintImplementationsForAllocatingLease(
	+ private function acquireLease(
	+ DrydockResource $resource,
	DrydockLease $lease) {

	- $impls = DrydockBlueprintImplementation::getAllBlueprintImplementations();
	+ $blueprint = $resource->getBlueprint();
	+ $blueprint->acquireLease($resource, $lease);

	- $keep = array();
	- foreach ($impls as $key => $impl) {
	- // Don't use disabled blueprint types.
	- if (!$impl->isEnabled()) {
	- continue;
	- }
	-
	- // Don't use blueprint types which can't allocate the correct kind of
	- // resource.
	- if ($impl->getType() != $lease->getResourceType()) {
	- continue;
	- }
	-
	- if (!$impl->canAnyBlueprintEverAllocateResourceForLease($lease)) {
	- continue;
	- }
	-
	- $keep[$key] = $impl;
	- }
	-
	- return $keep;
	+ $this->validateAcquiredLease($blueprint, $resource, $lease);
	}


	/**
	- * Remove blueprints which are too heavily allocated to build a resource for
	- * a lease from a list of blueprints.
	+ * Make sure that a lease was really acquired properly.
	*
	- * @param list<DrydockBlueprint> List of blueprints.
	- * @param list<DrydockBlueprint> List with fully allocated blueprints
	- * removed.
	+ * @param DrydockBlueprint Blueprint which created the resource.
	+ * @param DrydockResource Resource which was acquired.
	+ * @param DrydockLease The lease which was supposedly acquired.
	+ * @return void
	+ * @task lease
	*/
	- private function removeOverallocatedBlueprints(
	- array $blueprints,
	+ private function validateAcquiredLease(
	+ DrydockBlueprint $blueprint,
	+ DrydockResource $resource,
	DrydockLease $lease) {
	- assert_instances_of($blueprints, 'DrydockBlueprint');
	-
	- $keep = array();
	- foreach ($blueprints as $key => $blueprint) {
	- if (!$blueprint->canAllocateResourceForLease($lease)) {
	- continue;
	- }

	- $keep[$key] = $blueprint;
	+ if (!$lease->isAcquiredLease()) {
	+ throw new Exception(
	+ pht(
	+ 'Blueprint "%s" (of type "%s") is not properly implemented: it '.
	+ 'returned from "%s" without acquiring a lease.',
	+ $blueprint->getBlueprintName(),
	+ $blueprint->getClassName(),
	+ 'acquireLease()'));
	}

	- return $keep;
	+ $lease_id = $lease->getResourceID();
	+ $resource_id = $resource->getID();
	+
	+ if ($lease_id !== $resource_id) {
	+ // TODO: Destroy the lease?
	+ throw new Exception(
	+ pht(
	+ 'Blueprint "%s" (of type "%s") is not properly implemented: it '.
	+ 'returned from "%s" with a lease acquired on the wrong resource.',
	+ $blueprint->getBlueprintName(),
	+ $blueprint->getClassName(),
	+ 'acquireLease()'));
	+ }
	}

	+
	}
	diff --git a/src/applications/passphrase/controller/PassphraseCredentialEditController.php b/src/applications/passphrase/controller/PassphraseCredentialEditController.php
	--- a/src/applications/passphrase/controller/PassphraseCredentialEditController.php
	+++ b/src/applications/passphrase/controller/PassphraseCredentialEditController.php
	@@ -31,7 +31,7 @@
	throw new Exception(
	pht(
	'Credential has noncreateable type "%s"!',
	- $credential->getCredentialType()));
	+ $type_const));
	}

	$credential = PassphraseCredential::initializeNewCredential($viewer)

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