DoorkeeperFeedWorkerAsana.php
3a28f86a6e03stable

DoorkeeperFeedWorkerAsana.php
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			<?php

			/**
			* Publishes tasks representing work that needs to be done into Asana, and
			* updates the tasks as the corresponding Phabricator objects are updated.
			*/
			final class DoorkeeperFeedWorkerAsana extends DoorkeeperFeedWorker {

			private $provider;


			/* -( Publishing Stories )------------------------------------------------- */


			/**
			* This worker is enabled when an Asana workspace ID is configured with
			* `asana.workspace-id`.
			*/
			public function isEnabled() {
			return (bool)$this->getWorkspaceID();
			}


			/**
			* Publish stories into Asana using the Asana API.
			*/
			protected function publishFeedStory() {
			$story = $this->getFeedStory();
			$data = $story->getStoryData();

			$viewer = $this->getViewer();
			$provider = $this->getProvider();
			$workspace_id = $this->getWorkspaceID();

			$object = $this->getStoryObject();
			$src_phid = $object->getPHID();

			$publisher = $this->getPublisher();

			// Figure out all the users related to the object. Users go into one of
			// four buckets:
			//
			// - Owner: the owner of the object. This user becomes the assigned owner
			// of the parent task.
			// - Active: users who are responsible for the object and need to act on
			// it. For example, reviewers of a "needs review" revision.
			// - Passive: users who are responsible for the object, but do not need
			// to act on it right now. For example, reviewers of a "needs revision"
			// revision.
			// - Follow: users who are following the object; generally CCs.

			$owner_phid = $publisher->getOwnerPHID($object);
			$active_phids = $publisher->getActiveUserPHIDs($object);
			$passive_phids = $publisher->getPassiveUserPHIDs($object);
			$follow_phids = $publisher->getCCUserPHIDs($object);

			$all_phids = array();
			$all_phids = array_merge(
			array($owner_phid),
			$active_phids,
			$passive_phids,
			$follow_phids);
			$all_phids = array_unique(array_filter($all_phids));

			$phid_aid_map = $this->lookupAsanaUserIDs($all_phids);
			if (!$phid_aid_map) {
			throw new PhabricatorWorkerPermanentFailureException(
			'No related users have linked Asana accounts.');
			}

			$owner_asana_id = idx($phid_aid_map, $owner_phid);
			$all_asana_ids = array_select_keys($phid_aid_map, $all_phids);
			$all_asana_ids = array_values($all_asana_ids);

			// Even if the actor isn't a reviewer, etc., try to use their account so
			// we can post in the correct voice. If we miss, we'll try all the other
			// related users.

			$try_users = array_merge(
			array($data->getAuthorPHID()),
			array_keys($phid_aid_map));
			$try_users = array_filter($try_users);

			$access_info = $this->findAnyValidAsanaAccessToken($try_users);
			list($possessed_user, $possessed_asana_id, $oauth_token) = $access_info;

			if (!$oauth_token) {
			throw new PhabricatorWorkerPermanentFailureException(
			'Unable to find any Asana user with valid credentials to '.
			'pull an OAuth token out of.');
			}

			$etype_main = PhabricatorEdgeConfig::TYPE_PHOB_HAS_ASANATASK;
			$etype_sub = PhabricatorEdgeConfig::TYPE_PHOB_HAS_ASANASUBTASK;

			$equery = id(new PhabricatorEdgeQuery())
			->withSourcePHIDs(array($src_phid))
			->withEdgeTypes(
			array(
			$etype_main,
			$etype_sub,
			))
			->needEdgeData(true);

			$edges = $equery->execute();

			$main_edge = head($edges[$src_phid][$etype_main]);

			$main_data = $this->getAsanaTaskData($object) + array(
			'assignee' => $owner_asana_id,
			);

			$extra_data = array();
			if ($main_edge) {
			$extra_data = $main_edge['data'];

			$refs = id(new DoorkeeperImportEngine())
			->setViewer($possessed_user)
			->withPHIDs(array($main_edge['dst']))
			->execute();

			$parent_ref = head($refs);
			if (!$parent_ref) {
			throw new PhabricatorWorkerPermanentFailureException(
			'DoorkeeperExternalObject could not be loaded.');
			}

			if ($parent_ref->getSyncFailed()) {
			throw new Exception(
			'Synchronization of parent task from Asana failed!');
			} else if (!$parent_ref->getIsVisible()) {
			$this->log("Skipping main task update, object is no longer visible.\n");
			$extra_data['gone'] = true;
			} else {
			$edge_cursor = idx($main_edge['data'], 'cursor', 0);

			// TODO: This probably breaks, very rarely, on 32-bit systems.
			if ($edge_cursor <= $story->getChronologicalKey()) {
			$this->log("Updating main task.\n");
			$task_id = $parent_ref->getObjectID();

			$this->makeAsanaAPICall(
			$oauth_token,
			"tasks/".$parent_ref->getObjectID(),
			'PUT',
			$main_data);
			} else {
			$this->log(
			"Skipping main task update, cursor is ahead of the story.\n");
			}
			}
			} else {
			// If there are no followers (CCs), and no active or passive users
			// (reviewers or auditors), and we haven't synchronized the object before,
			// don't synchronize the object.
			if (!$active_phids && !$passive_phids && !$follow_phids) {
			$this->log("Object has no followers or active/passive users.\n");
			return;
			}

			$parent = $this->makeAsanaAPICall(
			$oauth_token,
			'tasks',
			'POST',
			array(
			'workspace' => $workspace_id,
			// NOTE: We initially create parent tasks in the "Later" state but
			// don't update it afterward, even if the corresponding object
			// becomes actionable. The expectation is that users will prioritize
			// tasks in responses to notifications of state changes, and that
			// we should not overwrite their choices.
			'assignee_status' => 'later',
			) + $main_data);

			$parent_ref = $this->newRefFromResult(
			DoorkeeperBridgeAsana::OBJTYPE_TASK,
			$parent);


			$extra_data = array(
			'workspace' => $workspace_id,
			);
			}

			// Synchronize main task followers.

			$task_id = $parent_ref->getObjectID();

			// Reviewers are added as followers of the parent task silently, because
			// they receive a notification when they are assigned as the owner of their
			// subtask, so the follow notification is redundant / non-actionable.
			$silent_followers = array_select_keys($phid_aid_map, $active_phids) +
			array_select_keys($phid_aid_map, $passive_phids);
			$silent_followers = array_values($silent_followers);

			// CCs are added as followers of the parent task with normal notifications,
			// since they won't get a secondary subtask notification.
			$noisy_followers = array_select_keys($phid_aid_map, $follow_phids);
			$noisy_followers = array_values($noisy_followers);

			// To synchronize follower data, just add all the followers. The task might
			// have additional followers, but we can't really tell how they got there:
			// were they CC'd and then unsubscribed, or did they manually follow the
			// task? Assume the latter since it's easier and less destructive and the
			// former is rare. To be fully consistent, we should enumerate followers
			// and remove unknown followers, but that's a fair amount of work for little
			// benefit, and creates a wider window for race conditions.

			// Add the silent followers first so that a user who is both a reviewer and
			// a CC gets silently added and then implicitly skipped by then noisy add.
			// They will get a subtask notification.
			$this->addFollowers($oauth_token, $task_id, $silent_followers, true);
			$this->addFollowers($oauth_token, $task_id, $noisy_followers);

			$dst_phid = $parent_ref->getExternalObject()->getPHID();

			// Update the main edge.

			$edge_data = array(
			'cursor' => $story->getChronologicalKey(),
			) + $extra_data;

			$edge_options = array(
			'data' => $edge_data,
			);

			id(new PhabricatorEdgeEditor())
			->setActor($viewer)
			->addEdge($src_phid, $etype_main, $dst_phid, $edge_options)
			->save();

			if (!$parent_ref->getIsVisible()) {
			throw new PhabricatorWorkerPermanentFailureException(
			'DoorkeeperExternalObject has no visible object on the other side; '.
			'this likely indicates the Asana task has been deleted.');
			}

			// Now, handle the subtasks.

			$sub_editor = id(new PhabricatorEdgeEditor())
			->setActor($viewer);

			// First, find all the object references in Phabricator for tasks that we
			// know about and import their objects from Asana.
			$sub_edges = $edges[$src_phid][$etype_sub];
			$sub_refs = array();
			$subtask_data = $this->getAsanaSubtaskData($object);
			$have_phids = array();

			if ($sub_edges) {
			$refs = id(new DoorkeeperImportEngine())
			->setViewer($possessed_user)
			->withPHIDs(array_keys($sub_edges))
			->execute();

			foreach ($refs as $ref) {
			if ($ref->getSyncFailed()) {
			throw new Exception(
			'Synchronization of child task from Asana failed!');
			}
			if (!$ref->getIsVisible()) {
			$ref->getExternalObject()->delete();
			continue;
			}
			$have_phids[$ref->getExternalObject()->getPHID()] = $ref;
			}
			}

			// Remove any edges in Phabricator which don't have valid tasks in Asana.
			// These are likely tasks which have been deleted. We're going to respawn
			// them.
			foreach ($sub_edges as $sub_phid => $sub_edge) {
			if (isset($have_phids[$sub_phid])) {
			continue;
			}

			$this->log(
			"Removing subtask edge to %s, foreign object is not visible.\n",
			$sub_phid);
			$sub_editor->removeEdge($src_phid, $etype_sub, $sub_phid);
			unset($sub_edges[$sub_phid]);
			}


			// For each active or passive user, we're looking for an existing, valid
			// task. If we find one we're going to update it; if we don't, we'll
			// create one. We ignore extra subtasks that we didn't create (we gain
			// nothing by deleting them and might be nuking something important) and
			// ignore subtasks which have been moved across workspaces or replanted
			// under new parents (this stuff is too edge-casey to bother checking for
			// and complicated to fix, as it needs extra API calls). However, we do
			// clean up subtasks we created whose owners are no longer associated
			// with the object.

			$subtask_states = array_fill_keys($active_phids, false) +
			array_fill_keys($passive_phids, true);

			// Continue with only those users who have Asana credentials.

			$subtask_states = array_select_keys(
			$subtask_states,
			array_keys($phid_aid_map));

			$need_subtasks = $subtask_states;

			$user_to_ref_map = array();
			$nuke_refs = array();
			foreach ($sub_edges as $sub_phid => $sub_edge) {
			$user_phid = idx($sub_edge['data'], 'userPHID');

			if (isset($need_subtasks[$user_phid])) {
			unset($need_subtasks[$user_phid]);
			$user_to_ref_map[$user_phid] = $have_phids[$sub_phid];
			} else {
			// This user isn't associated with the object anymore, so get rid
			// of their task and edge.
			$nuke_refs[$sub_phid] = $have_phids[$sub_phid];
			}
			}

			// These are tasks we know about but which are no longer relevant -- for
			// example, because a user has been removed as a reviewer. Remove them and
			// their edges.

			foreach ($nuke_refs as $sub_phid => $ref) {
			$sub_editor->removeEdge($src_phid, $etype_sub, $sub_phid);
			$this->makeAsanaAPICall(
			$oauth_token,
			'tasks/'.$ref->getObjectID(),
			'DELETE',
			array());
			$ref->getExternalObject()->delete();
			}

			// For each user that we don't have a subtask for, create a new subtask.
			foreach ($need_subtasks as $user_phid => $is_completed) {
			$subtask = $this->makeAsanaAPICall(
			$oauth_token,
			'tasks',
			'POST',
			$subtask_data + array(
			'assignee' => $phid_aid_map[$user_phid],
			'completed' => $is_completed,
			'parent' => $parent_ref->getObjectID(),
			));

			$subtask_ref = $this->newRefFromResult(
			DoorkeeperBridgeAsana::OBJTYPE_TASK,
			$subtask);

			$user_to_ref_map[$user_phid] = $subtask_ref;

			// We don't need to synchronize this subtask's state because we just
			// set it when we created it.
			unset($subtask_states[$user_phid]);

			// Add an edge to track this subtask.
			$sub_editor->addEdge(
			$src_phid,
			$etype_sub,
			$subtask_ref->getExternalObject()->getPHID(),
			array(
			'data' => array(
			'userPHID' => $user_phid,
			),
			));
			}

			// Synchronize all the previously-existing subtasks.

			foreach ($subtask_states as $user_phid => $is_completed) {
			$this->makeAsanaAPICall(
			$oauth_token,
			'tasks/'.$user_to_ref_map[$user_phid]->getObjectID(),
			'PUT',
			$subtask_data + array(
			'assignee' => $phid_aid_map[$user_phid],
			'completed' => $is_completed,
			));
			}

			foreach ($user_to_ref_map as $user_phid => $ref) {
			// For each subtask, if the acting user isn't the same user as the subtask
			// owner, remove the acting user as a follower. Currently, the acting user
			// will be added as a follower only when they create the task, but this
			// may change in the future (e.g., closing the task may also mark them
			// as a follower). Wipe every subtask to be sure. The intent here is to
			// leave only the owner as a follower so that the acting user doesn't
			// receive notifications about changes to subtask state. Note that
			// removing followers is silent in all cases in Asana and never produces
			// any kind of notification, so this isn't self-defeating.
			if ($user_phid != $possessed_user->getPHID()) {
			$this->makeAsanaAPICall(
			$oauth_token,
			'tasks/'.$ref->getObjectID().'/removeFollowers',
			'POST',
			array(
			'followers' => array($possessed_asana_id),
			));
			}
			}

			// Update edges on our side.

			$sub_editor->save();

			// Don't publish the "create" story, since pushing the object into Asana
			// naturally generates a notification which effectively serves the same
			// purpose as the "create" story. Similarly, "close" stories generate a
			// close notification.
			if (!$publisher->isStoryAboutObjectCreation($object) &&
			!$publisher->isStoryAboutObjectClosure($object)) {
			// Post the feed story itself to the main Asana task. We do this last
			// because everything else is idempotent, so this is the only effect we
			// can't safely run more than once.

			$text = $publisher->getStoryText($object);

			$this->makeAsanaAPICall(
			$oauth_token,
			'tasks/'.$parent_ref->getObjectID().'/stories',
			'POST',
			array(
			'text' => $text,
			));
			}
			}


			/* -( Internals )---------------------------------------------------------- */

			private function getWorkspaceID() {
			return PhabricatorEnv::getEnvConfig('asana.workspace-id');
			}

			private function getProvider() {
			if (!$this->provider) {
			$provider = PhabricatorAuthProviderOAuthAsana::getAsanaProvider();
			if (!$provider) {
			throw new PhabricatorWorkerPermanentFailureException(
			'No Asana provider configured.');
			}
			$this->provider = $provider;
			}
			return $this->provider;
			}

			private function getAsanaTaskData($object) {
			$publisher = $this->getPublisher();

			$title = $publisher->getObjectTitle($object);
			$uri = $publisher->getObjectURI($object);
			$description = $publisher->getObjectDescription($object);
			$is_completed = $publisher->isObjectClosed($object);

			$notes = array(
			$description,
			$uri,
			$this->getSynchronizationWarning(),
			);

			$notes = implode("\n\n", $notes);

			return array(
			'name' => $title,
			'notes' => $notes,
			'completed' => $is_completed,
			);
			}

			private function getAsanaSubtaskData($object) {
			$publisher = $this->getPublisher();

			$title = $publisher->getResponsibilityTitle($object);
			$uri = $publisher->getObjectURI($object);
			$description = $publisher->getObjectDescription($object);

			$notes = array(
			$description,
			$uri,
			$this->getSynchronizationWarning(),
			);

			$notes = implode("\n\n", $notes);

			return array(
			'name' => $title,
			'notes' => $notes,
			);
			}

			private function getSynchronizationWarning() {
			return
			"\xE2\x9A\xA0 DO NOT EDIT THIS TASK \xE2\x9A\xA0\n".
			"\xE2\x98\xA0 Your changes will not be reflected in Phabricator.\n".
			"\xE2\x98\xA0 Your changes will be destroyed the next time state ".
			"is synchronized.";
			}

			private function lookupAsanaUserIDs($all_phids) {
			$phid_map = array();

			$all_phids = array_unique(array_filter($all_phids));
			if (!$all_phids) {
			return $phid_map;
			}

			$provider = PhabricatorAuthProviderOAuthAsana::getAsanaProvider();

			$accounts = id(new PhabricatorExternalAccountQuery())
			->setViewer(PhabricatorUser::getOmnipotentUser())
			->withUserPHIDs($all_phids)
			->withAccountTypes(array($provider->getProviderType()))
			->withAccountDomains(array($provider->getProviderDomain()))
			->execute();

			foreach ($accounts as $account) {
			$phid_map[$account->getUserPHID()] = $account->getAccountID();
			}

			// Put this back in input order.
			$phid_map = array_select_keys($phid_map, $all_phids);

			return $phid_map;
			}

			private function findAnyValidAsanaAccessToken(array $user_phids) {
			if (!$user_phids) {
			return array(null, null, null);
			}

			$provider = $this->getProvider();
			$viewer = $this->getViewer();

			$accounts = id(new PhabricatorExternalAccountQuery())
			->setViewer($viewer)
			->withUserPHIDs($user_phids)
			->withAccountTypes(array($provider->getProviderType()))
			->withAccountDomains(array($provider->getProviderDomain()))
			->execute();

			// Reorder accounts in the original order.
			// TODO: This needs to be adjusted if/when we allow you to link multiple
			// accounts.
			$accounts = mpull($accounts, null, 'getUserPHID');
			$accounts = array_select_keys($accounts, $user_phids);

			$workspace_id = $this->getWorkspaceID();

			foreach ($accounts as $account) {
			// Get a token if possible.
			$token = $provider->getOAuthAccessToken($account);
			if (!$token) {
			continue;
			}

			// Verify we can actually make a call with the token, and that the user
			// has access to the workspace in question.
			try {
			id(new PhutilAsanaFuture())
			->setAccessToken($token)
			->setRawAsanaQuery("workspaces/{$workspace_id}")
			->resolve();
			} catch (Exception $ex) {
			// This token didn't make it through; try the next account.
			continue;
			}

			$user = id(new PhabricatorPeopleQuery())
			->setViewer($viewer)
			->withPHIDs(array($account->getUserPHID()))
			->executeOne();
			if ($user) {
			return array($user, $account->getAccountID(), $token);
			}
			}

			return array(null, null, null);
			}

			private function makeAsanaAPICall($token, $action, $method, array $params) {
			foreach ($params as $key => $value) {
			if ($value === null) {
			unset($params[$key]);
			} else if (is_array($value)) {
			unset($params[$key]);
			foreach ($value as $skey => $svalue) {
			$params[$key.'['.$skey.']'] = $svalue;
			}
			}
			}

			return id(new PhutilAsanaFuture())
			->setAccessToken($token)
			->setMethod($method)
			->setRawAsanaQuery($action, $params)
			->resolve();
			}

			private function newRefFromResult($type, $result) {
			$ref = id(new DoorkeeperObjectRef())
			->setApplicationType(DoorkeeperBridgeAsana::APPTYPE_ASANA)
			->setApplicationDomain(DoorkeeperBridgeAsana::APPDOMAIN_ASANA)
			->setObjectType($type)
			->setObjectID($result['id'])
			->setIsVisible(true);

			$xobj = $ref->newExternalObject();
			$ref->attachExternalObject($xobj);

			$bridge = new DoorkeeperBridgeAsana();
			$bridge->fillObjectFromData($xobj, $result);

			$xobj->save();

			return $ref;
			}

			private function addFollowers(
			$oauth_token,
			$task_id,
			array $followers,
			$silent = false) {

			if (!$followers) {
			return;
			}

			$data = array(
			'followers' => $followers,
			);

			// NOTE: This uses a currently-undocumented API feature to suppress the
			// follow notifications.
			if ($silent) {
			$data['silent'] = true;
			}

			$this->makeAsanaAPICall(
			$oauth_token,
			"tasks/{$task_id}/addFollowers",
			'POST',
			$data);
			}

			}

phab/src/applications/doorkeeper/worker/DoorkeeperFeedWorkerAsana.php3a28f86a6e03stable

DoorkeeperFeedWorkerAsana.phpView Options

phab/src/applications/doorkeeper/worker/DoorkeeperFeedWorkerAsana.php
3a28f86a6e03stable

DoorkeeperFeedWorkerAsana.php
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