Summary:
Ref T4100. Ref T5595.
To support a unified "Projects:" query across all applications, a future diff is going to add a set of "Edge Logic" capabilities to `PolicyAwareQuery` which write the required SELECT, JOIN, WHERE, HAVING and GROUP clauses for you.
With the addition of "Edge Logic", we'll have three systems which may need to build components of query claues: ordering/paging, customfields/applicationsearch, and edge logic.
For most clauses, queries don't currently call into the parent explicitly to get default components. I want to move more query construction logic up the class tree so it can be shared.
For most methods, this isn't a problem, but many subclasses define a `buildWhereClause()`. Make all such definitions protected and consistent.
This causes no behavioral changes.
Test Plan: Ran `arc unit --everything`, which does a pretty through job of verifying this statically.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: yelirekim, hach-que, epriestley
Maniphest Tasks: T4100, T5595
Differential Revision: https://secure.phabricator.com/D12453
Summary:
Ref T7803. Prior to this change sequence, Query classes conflated paging values (the actual thing that goes in a "x > 3" clause) with cursor values (arbitrary identifiers which track where the user is in a result list).
Although the two can sometimes be the same, the vast majority of implementations are simpler and better when object IDs are used as cursors and paging values are derived from them.
The new stuff handles this in a consistent way, so we're free to separate getPagingValue() from paging. The new method is essentially getResultCursor().
This also implements getPageCursors(), which allows queries to return directional cursors. The inability to do this was a practical limitation blocking the implementation of T7803.
Test Plan:
- Browsed a bunch of results and paged through queries.
- Grepped for removed methods.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7803
Differential Revision: https://secure.phabricator.com/D12383
Summary: Since this element isn't strictly about errors, re-label as info view instead.
Test Plan: Grepped for all callsites, tested UIExamples and a few other random pages.
Reviewers: btrahan, epriestley
Reviewed By: epriestley
Subscribers: hach-que, Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D11867
Summary: This port is always HTTP, so use HTTP even if users have set the URI to "https".
Test Plan: Launched server and hit status page, status good.
Reviewers: btrahan, chad
Reviewed By: chad
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D11799
Summary:
Fixes T7130. Fixes T7041. Fixes T7012.
Major change here is partitioning clients. In the Phacility cluster, being able to get a huge pile of instances on a single server -- without needing to run a process per instance -- is desirable.
To accomplish this, just bucket clients by the path they connect with. This will let us set client URIs to `/instancename/` and then route connections to a small set of servers. This degrades cleanly in the common case and has no effect on installs which don't do instancing.
Also fix two unrelated issues:
- Fix the timeouts, which were incorrectly initializing in `open()` (which is called during reconnect, causing them to reset every time). Instead, initialize in the constructor. Cap timeout at 5 minutes.
- Probably fix subscriptions, which were using a property with an object definition. Since this is by-ref, all concrete instances of the object share the same property, so all users would be subscribed to everything. Probably.
Test Plan:
- Hit notification status page, saw version bump and instance/path name.
- Saw instance/path name in client and server logs.
- Stopped server, saw reconnects after 2, 4, 16, ... seconds.
- Sent test notification; received test notification.
- Didn't explicitly test the subscription thing but it should be obvious by looking at `/notification/status/` shortly after a push.
Reviewers: joshuaspence, btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T7041, T7012, T7130
Differential Revision: https://secure.phabricator.com/D11769
Summary: Fixes T7118. This does the basic "filter the list" thing, though it ends up being a little manual since I guess this hasn't come up before? There is also potential weird behavior if the user was using an app and lost access to it - they will have nothing selected on edit - but I think this is actually correct behavior in this circumstance.
Test Plan:
used a user who couldn't get access to the "quick create" apps and noted that the dropdown list on dashboard panel create was missing the expected engines
ran `arc unit --everything` to verify abstract method implemented everywhere
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T7118
Differential Revision: https://secure.phabricator.com/D11687
Summary: Clean up the error view styling.
Test Plan:
Tested as many as I could find, built additional tests in UIExamples
{F280452}
{F280453}
Reviewers: btrahan, epriestley
Reviewed By: epriestley
Subscribers: hach-que, Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D11605
Summary: Select a similar or better FontAwesome icon to represent each application
Test Plan: Visual inspection
Reviewers: epriestley, btrahan
Subscribers: hach-que, Korvin, epriestley
Differential Revision: https://secure.phabricator.com/D11489
Summary:
Fixes T6559. No more flash, use Websockets. This is less aggressive than the earlier version, and retains more server logic.
- Support "wss".
- Make the client work.
- Remove "notification.user" entirely.
- Seems ok?
Test Plan:
In Safari, Firefox and Chrome, saw the browsers connect. Made a bunch of comments/updates and saw notifications.
Notable holes in the test plan:
- Haven't tested "wss" yet. I'll do this on secure.
- Notifications are //too fast// now, locally. I get them after I hit submit but before the page reloads.
- There are probably some other rough edges, this is a fairly big patch.
Reviewers: joshuaspence, btrahan
Reviewed By: joshuaspence, btrahan
Subscribers: fabe, btrahan, epriestley
Maniphest Tasks: T6713, T6559
Differential Revision: https://secure.phabricator.com/D11143
Summary:
Ref T6559. See discussion in D11143. At least locally, WebSockets are too fast and create immediate local notifications on page submit.
To mitigate this, don't notify about your own actions.
This isn't perfect (we get the other-copies-of-the-window-open-in-other-tabs case wrong) but I think the case we get wrong is rare / not very important.
Test Plan: Submitted stuff, saw other users get notifications but not me.
Reviewers: btrahan, joshuaspence
Reviewed By: joshuaspence
Subscribers: epriestley
Maniphest Tasks: T6559
Differential Revision: https://secure.phabricator.com/D11275
Summary: Ref T6822.
Test Plan: Visual inspection. These methods are only called from within the `PhabricatorApplicationSearchEngine` class.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: Korvin, epriestley
Maniphest Tasks: T6822
Differential Revision: https://secure.phabricator.com/D11242
Summary:
Ref T5702. This is a forward-looking change which provides some very broad API improvements but does not implement them. In particular:
- Controllers no longer require `$request` to construct. This is mostly for T5702, directly, but simplifies things in general. Instead, we call `setRequest()` before using a controller. Only a small number of sites activate controllers, so this is less code overall, and more consistent with most constructors not having any parameters or effects.
- `$request` now offers `getURIData($key, ...)`. This is an alternate way of accessing `$data` which is currently only available on `willProcessRequest(array $data)`. Almost all controllers which implement this method do so in order to read one or two things out of the URI data. Instead, let them just read this data directly when processing the request.
- Introduce `handleRequest(AphrontRequest $request)` and deprecate (very softly) `processRequest()`. The majority of `processRequest()` calls begin `$request = $this->getRequest()`, which is avoided with the more practical signature.
- Provide `getViewer()` on `$request`, and a convenience `getViewer()` on `$controller`. This fixes `$viewer = $request->getUser();` into `$viewer = $request->getViewer();`, and converts the `$request + $viewer` two-liner into a single `$this->getViewer()`.
Test Plan:
- Browsed around in general.
- Hit special controllers (redirect, 404).
- Hit AuditList controller (uses new style).
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5702
Differential Revision: https://secure.phabricator.com/D10698
Summary:
Ref T1191.
- Adds definitions for missing keys and keys with wrong uniqueness. Generally, I defined these before fixing the key query to actually pull all keys and support uniqueness.
- Moves "key uniqueness" to note severity; this is fixable (probably?) and there are no remaining issues.
- Moves "Missing Key" to note severity; missing keys are fixable and all remaining missing keys are really missing (either missing edge keys, or missing PHID keys):
{F210089}
- Moves "Surplus Key" to note seveirty; surplus keys are fixable all remaining surplus keys are really surplus (duplicate key in Harbormaster, key on unused column in Worker):
{F210090}
Test Plan:
- Vetted missing/surplus/unique messages.
- 146 issues remaining.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T1191
Differential Revision: https://secure.phabricator.com/D10590
Summary:
Ref T1191. Notable:
- Allowed objects to remove default columns (some feed tables have no `id`).
- Added a "note" severity and moved all the charset stuff down to that to make progress more clear.
Test Plan:
Trying to make the whole thing blue...
{F205970}
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T1191
Differential Revision: https://secure.phabricator.com/D10519
Summary: Fixes T5982. Probably. I'm just guessing here but like 95% sure this will fix it and 99% sure it won't hurt/break anything.
Test Plan: Still works on my 64-bit install, for what little that's worth.
Reviewers: btrahan
Reviewed By: btrahan
Subscribers: epriestley
Maniphest Tasks: T5982
Differential Revision: https://secure.phabricator.com/D10415
Summary: D10281 upgraded us to modern infrastructure but I think forget to set this little helper to return true. Fixes T5975.
Test Plan: paged through notifications with glee
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: epriestley, Korvin
Maniphest Tasks: T5975
Differential Revision: https://secure.phabricator.com/D10369
Summary: Ref T5891. This just modernizes infrastructure.
Test Plan: Viewed "All" and "Unread" notifications.
Reviewers: btrahan, chad
Reviewed By: chad
Subscribers: epriestley
Maniphest Tasks: T5891
Differential Revision: https://secure.phabricator.com/D10281
Summary: Fixes T5575. Moves "All" links into title/header. Mark all read floats left, and connection status sits in footer. Also added hints to enable notifications (it's a cool feature).
Test Plan:
Tested locally both menus.
{F190630}
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: epriestley, Korvin
Maniphest Tasks: T5575
Differential Revision: https://secure.phabricator.com/D10269
Summary:
pre-patch "Mark All Read" marks *all* unread notifications as read. This is a race condition in that the user is looking at some set of notiifcations and that set may update such that the newest notifications aren't shown. An example might be if sitting on the notifications page or having the menu open while a new notification comes in... Note re-opening the menu would show the latest notifications.
This patch makes it so "Mark All Read" links only marks the notifications currently loaded (and older.) Fixes T5764.
Additionally, if there is nothing to "mark read" the button / link "Mark All Read" will have a disabled style and yield a dialog saying "nothing to mark as read".
Test Plan: carefully tracked ?chronoKey populating correctly in various links. Verified query constructed properly too.
Reviewers: epriestley
Reviewed By: epriestley
Subscribers: epriestley, Korvin
Maniphest Tasks: T5764
Differential Revision: https://secure.phabricator.com/D10113
Summary: Ref T5655. Some discussion in D9839. Generally speaking, `Phabricator{$name}Application` is clearer than `PhabricatorApplication{$name}`.
Test Plan:
# Pinned and uninstalled some applications.
# Applied patch and performed migrations.
# Verified that the pinned applications were still pinned and that the uninstalled applications were still uninstalled.
# Performed a sanity check on the database contents.
Reviewers: btrahan, epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: hach-que, epriestley, Korvin
Maniphest Tasks: T5655
Differential Revision: https://secure.phabricator.com/D9982
Summary: Ref T5651. Currently, the Aphlict server returns either `200 OKAY` or `400 Bad Request`. We could return more specific errors in some cases and this may assist with debugging.
Test Plan:
Sent myself a test notification at `/notification/status/` and saw the Aphlict server process the request (running in debug mode). Also poked around with `curl`:
```
> curl http://localhost:22281/
405 Method Not Allowed
> curl http://localhost:22281/ -d ""
400 Bad Request
> curl http://localhost:22281/foobar/
404 Not Found
```
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: epriestley, Korvin
Maniphest Tasks: T5651
Differential Revision: https://secure.phabricator.com/D9967
Summary: These have been moved into libphutil.
Test Plan: Browsed Phabricator, didn't see a crash.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: epriestley, Korvin
Differential Revision: https://secure.phabricator.com/D9907
Summary: Ref T5365. Surface disconnects in the UI.
Test Plan:
- Connected, then killed the server.
- Saw disconnected event and appropriate update in the UI.
{F169605}
Reviewers: joshuaspence
Reviewed By: joshuaspence
Subscribers: epriestley
Maniphest Tasks: T5365
Differential Revision: https://secure.phabricator.com/D9706
Summary:
Fixes T5373. Ref T5281. Several changes:
- The `marshallExceptions` thing is useful if JS throws an exception when invoked from Flash, so set it. The resulting exceptions are a little odd (not escaped correctly, e.g.) but way better than nothing.
- Put connection status in the notification menu.
- When the connection fails, try to provide contextual help where we can.
Test Plan: {F169493}
Reviewers: chad, joshuaspence
Reviewed By: joshuaspence
Subscribers: epriestley
Maniphest Tasks: T5281, T5373
Differential Revision: https://secure.phabricator.com/D9700
Summary:
Ref T5446.
- For all callsites which do not specify a value, set `false` explicitly.
- Make `true` the default.
Test Plan: Used `grep`, then manually went through everything.
Reviewers: chad
Reviewed By: chad
Subscribers: epriestley
Maniphest Tasks: T5446
Differential Revision: https://secure.phabricator.com/D9687
Summary:
Ref T4083. This needs some work (mostly in the Conpherence JS itself), but is sort of functional. In particular:
- On thread pages, add the thread as a `pageObject`.
- After updating a thread, send a new "message" event to the server.
- Share a little more event posting code.
- In the browser, use event dispatch to respond to events.
- Add a listener for the new event type.
- Update conpherence threads (this part is really yucky).
Test Plan: With multiple browser windows / browsers open, posted a message to a thread, and saw it update everywhere.
Reviewers: joshuaspence
Reviewed By: joshuaspence
Subscribers: chad, epriestley
Maniphest Tasks: T4083
Differential Revision: https://secure.phabricator.com/D9486
Summary:
Currently, the Aphlict server will crash if invalid JSON data is `POST`ed to it. I have fixed this to, instead, return a 400. Also made some minor formatting changes.
Ref T4324. Ref T5284. Also, modify the data structure that is passed around (i.e. `POST`ed to the Aphlict server and broadcast to the Aphlict clients) to include the subscribers. Initially, I figured that we shouldn't expose this information to the clients... however, it is necessary for T4324 that the `AphlictMaster` is able to route a notification to the appropriate clients.
Test Plan:
Making the following `curl` request: `curl --data "{" http://localhost:22281/`.
**Before**
```
sudo ./bin/aphlict debug
Starting Aphlict server in foreground...
Launching server:
$ 'nodejs' '/usr/src/phabricator/src/applications/aphlict/management/../../../../support/aphlict/server/aphlict_server.js' --port='22280' --admin='22281' --host='localhost' --user='aphlict'
[Wed Jun 11 2014 17:07:51 GMT+0000 (UTC)] Started Server (PID 2033)
[Wed Jun 11 2014 17:07:55 GMT+0000 (UTC)]
<<< UNCAUGHT EXCEPTION! >>>
SyntaxError: Unexpected end of input
>>> Server exited!
```
**After**
(No output... the bad JSON is caught and a 400 is returned)
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: epriestley, Korvin
Maniphest Tasks: T4324, T5284
Differential Revision: https://secure.phabricator.com/D9480
Summary: Ran `arc lint --apply-patches --everything` over rP, mainly to change double quotes to single quotes where appropriate. These changes also validate that the `ArcanistXHPASTLinter::LINT_DOUBLE_QUOTE` rule is working as expected.
Test Plan: Eyeballed it.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: epriestley, Korvin, hach-que
Differential Revision: https://secure.phabricator.com/D9431
Summary: Fixes T5278. This isn't completely perfect (if you have the other `node` binary, it will fail to detect that it's wrong) but we can maybe wait for that to happen and devise some kind of "is this binary really node?" test if users actually hit it.
Test Plan: Faked things, hit the error; unfaked them and hit the normal flow.
Reviewers: joshuaspence
Reviewed By: joshuaspence
Subscribers: epriestley
Maniphest Tasks: T5278
Differential Revision: https://secure.phabricator.com/D9419
Summary:
The docs are now a little out of date.
Also //possibly// we should call this `bin/notifications` or something, maybe?
Test Plan: read
Reviewers: joshuaspence
Reviewed By: joshuaspence
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D9398
Summary:
Ref T4324. As well as sending the key for the notification, also publish the notification type and a list of subscribers to the Aphlict server.
The idea here is that the Aphlict server passes anything within the `data` key to the clients, whereas other keys (such as `subscribers`) will be used by the server to determine where the notifications should be routed.
Note that these changes don't do anything useful, but are a prerequisite for further work on T4324.
Test Plan:
Sent myself test notifications at `/notification/status/`. Also inspected the Aphlict server debug output:
```
> sudo ./bin/aphlict --foreground
Starting server in foreground, ignoring pidfile...
Launching server:
$ node '/usr/src/phabricator/support/aphlict/server/aphlict_server.js' --port='22280' --admin='22281' --host='localhost' --user='aphlict' --log='/var/log/aphlict.log'
[Thu Jun 05 2014 18:38:14 GMT+0000 (UTC)] Started Server (PID 15437)
[Thu Jun 05 2014 18:38:16 GMT+0000 (UTC)] <FlashPolicy> Policy Request From ::ffff:10.0.0.1
[Thu Jun 05 2014 18:38:16 GMT+0000 (UTC)] <Listener/1> Connected from ::ffff:10.0.0.1
[Thu Jun 05 2014 18:38:19 GMT+0000 (UTC)] notification: {"data":{"key":"6021516228036848559","type":"notification"},"subscribers":["PHID-USER-cb5af6p4oepy5tlgqypi"]}
[Thu Jun 05 2014 18:38:19 GMT+0000 (UTC)] <Listener/1> Wrote Message
```
Reviewers: epriestley, #blessed_reviewers
Reviewed By: epriestley, #blessed_reviewers
Subscribers: epriestley, Korvin
Maniphest Tasks: T4324
Differential Revision: https://secure.phabricator.com/D9396
Summary:
Ref T4324. Currently, notifications data is `POST`ed to the Aphlict server in the `application/x-www-form-urlencoded` format. This works fine for simple data but is problematic for nested data. For example:
```lang=php
array(
'data' => array(
'key' => '6021329908492455737',
'type' => 'PhabricatorNotificationAdHocFeedStory',
),
'subscribers' => array(
'PHID-USER-y7ofqm276ejs62yqghge',
),
);
```
Is encoded as `data%5Bkey%5D=6021329908492455737&data%5Btype%5D=PhabricatorNotificationAdHocFeedStory&subscribers%5B0%5D=PHID-USER-y7ofqm276ejs62yqghge`. This string is then (incorrectly) decoded by `querystring.parse` as:
```lang=javascript
> querystring.parse('data%5Bkey%5D=6021329908492455737&data%5Btype%5D=PhabricatorNotificationAdHocFeedStory&subscribers%5B0%5D=PHID-USER-y7ofqm276ejs62yqghge');
{ 'data[key]': '6021329908492455737',
'data[type]': 'PhabricatorNotificationAdHocFeedStory',
'subscribers[0]': 'PHID-USER-y7ofqm276ejs62yqghge' }
```
Test Plan: Sent test notifications from `/notification/status/` and verified that the notifications still worked.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: epriestley, Korvin
Maniphest Tasks: T4324
Differential Revision: https://secure.phabricator.com/D9386
Summary:
This does some backend cleanup of the tile stuff, and some general cleanup of other application things:
- Users who haven't customized preferences get a small, specific set of pinned applications: Differential, Maniphest, Diffusion, Audit, Phriction, Projects (and, for administrators, Auth, Config and People).
- Old tile size methods are replaced with `isPinnnedByDefault()`.
- Shortened some short descriptions.
- `shouldAppearInLaunchView()` replaced by less ambiguous `isLaunchable()`.
- Added a marker for third-party / extension applications.
Test Plan: Faked away my preferences and viewed the home page, saw a smaller set of default pins.
Reviewers: chad
Reviewed By: chad
Subscribers: epriestley
Differential Revision: https://secure.phabricator.com/D9358
Summary:
This probably needs some tweaks, but the idea is to make it easier to browse and access applications without necessarily needing them to be on the homepage.
Open to feedback.
Test Plan:
(This screenshot merges "Organization", "Communication" and "Core" into a single "Core" group. We can't actually do this yet because it wrecks the homepage.)
{F160052}
Reviewers: btrahan, chad
Reviewed By: chad
Subscribers: epriestley
Maniphest Tasks: T5176
Differential Revision: https://secure.phabricator.com/D9297
Summary: The removes the sprite sheet 'icons' and replaces it with FontAwesome fonts.
Test Plan:
- Grep for SPRITE_ICONS and replace
- Grep for sprite-icons and replace
- Grep for PhabricatorActionList and choose all new icons
- Grep for Crumbs and fix icons
- Test/Replace PHUIList Icon support
- Test/Replace ObjectList Icon support (foot, epoch, etc)
- Browse as many pages as I could get to
- Remove sprite-icons and move remarkup to own sheet
- Review this diff in Differential
Reviewers: btrahan, epriestley
Reviewed By: epriestley
Subscribers: epriestley, Korvin, hach-que
Differential Revision: https://secure.phabricator.com/D9052
Summary: Fixes T5025. We label this action in two different ways ("Clear All Notifications", "Mark All Read"). The latter is probably a better description.
Test Plan: looked at the UI.
Reviewers: btrahan, chad
Reviewed By: chad
Subscribers: epriestley
Maniphest Tasks: T5025
Differential Revision: https://secure.phabricator.com/D9073
Summary: Fixes T2576. Also hyperlinks "Notifications" and "Messages" for easier quick navigation to those areas. Maybe we could get rid of the "See All X" UI at the bottom and use these links?
Test Plan: cleared all notifications from new UI - it worked! observed new linked "Notifications" and "Messages" headers
Reviewers: chad, epriestley
Reviewed By: epriestley
Subscribers: epriestley, Korvin
Maniphest Tasks: T2576
Differential Revision: https://secure.phabricator.com/D8894
Summary: The token transactions can publish empty transaction feed stories.
Stop them from doing that, and make notifications fail more quietly.
Auditors: btrahan
Summary: Ref T4324. Currently, it's a bit of a pain to send yourself notifications, and often involves multiple browsers. Instead, add a button to send them.
Test Plan: {F114495}
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4324
Differential Revision: https://secure.phabricator.com/D8255
Summary:
Ref T4324. Add a real `Application` class. Use modern UI elements.
@chad, we could use an icon :3
Test Plan: {F114477}
Reviewers: chad, btrahan
Reviewed By: chad
CC: chad, aran
Maniphest Tasks: T4324
Differential Revision: https://secure.phabricator.com/D8254
Summary:
Ref T4324. The server code is probably going to get a fair amount more complicated, so allow it to load Javelin classes in a mostly-reasonable way.
This integration has a few warts, but should be good enough to let us manage complexity through the next iteration of the server.
(Mostly I just want the concicse Javelin mechanism for defining new classes.)
Version bump is just so I can figure stuff out if this creates any issues for users based on which version of things they're running.
Test Plan: Started server, posted some messages through it.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T4324
Differential Revision: https://secure.phabricator.com/D8253
