Provide basic documentation about Aphlict

Summary: Hopefully this is helpful? Also fixed a thing that wasn't using config.

Test Plan: Read documentation. Sent myself a notification over the server.

Reviewers: jungejason

Reviewed By: jungejason

CC: aran

Maniphest Tasks: T944

Differential Revision: https://secure.phabricator.com/D2804

src/applications/feed/PhabricatorFeedStoryPublisher.php

@@ -138,15 +138,16 @@ final class PhabricatorFeedStoryPublisher {
   }
 
   private function sendNotification($chrono_key) {
-    $aphlict_url = 'http://127.0.0.1:22281/push?'; //TODO: make configurable
-    $future = new HTTPFuture($aphlict_url, array(
-      "key" => (string)$chrono_key,
-      // TODO: fix. \r\n appears to be appended to the final value here.
-      //       this is a temporary workaround
-      "nothing" => "",
-    ));
-    $future->setMethod('POST');
-    $future->resolve();
+    $server_uri = PhabricatorEnv::getEnvConfig('notification.server-uri');
+
+    $data = array(
+      'key' => (string)$chrono_key,
+    );
+
+    id(new HTTPSFuture($server_uri, $data))
+      ->setMethod('POST')
+      ->setTimeout(1)
+      ->resolve();
   }
 
   /**

src/docs/userguide/notifications.diviner

@@ -0,0 +1,83 @@
+@title Notifications User Guide: Setup and Configuration
+@group userguide
+
+Guide to setting up notifications.
+
+= Overview =
+
+Phabricator can be configured to notify users when events happen in real time,
+so they'll get a message in their browser window if something has happened or
+the object they're looking at has been updated.
+
+NOTE: This feature is new and still needs some work.
+
+= Enabling Notifications =
+
+To enable notifications, set `notification.enabled` to `true` in your
+configuration. This will enable the notification menu in the menu bar, and
+notifications will be published when users take actions.
+
+NOTE: This setting will be turned on for everyone soon.
+
+= Running the Aphlict Server =
+
+Phabricator implements realtime notifications using a Node.js server called
+"Aphlict". To run it:
+
+  - Install node.js.
+  - Run `bin/aphlict` (this script must be run as root).
+
+Since the script needs `PHABRICATOR_ENV` to be defined, you may need to use
+the `-E` flag to `sudo` to preserve the environment if you have
+`PHABRICATOR_ENV` defined in your `.bashrc` or similar:
+
+  phabricator/ $ sudo -E ./bin/aphlict
+
+The server must be able to listen on port **843** and port **22280** for Aphlict
+to work. You can change the latter port in the `notification.client-uri` config,
+but port 843 is used by Flash and can not be changed. In particular, if you're
+running in EC2, you need to unblock both of these ports in the server's security
+group configuration.
+
+You may want to adjust these settings:
+
+  - `notification.client-uri` Externally-facing host and port that browsers will
+    connect to in order to listen for notifications.
+  - `notification.server-uri` Internally-facing host and port that Phabricator
+    will connect to in order to publish notifications.
+  - `notification.log` Log file location for the server.
+  - `notification.user` Non-root user to drop permissions to after binding to
+    privileged ports.
+  - `notification.pid` Pidfile location used to stop any running server when
+    aphlict is restarted.
+
+In most cases, the defaults are appropriate, except that you should set
+`notification.user` to some valid user so Aphlict isn't running as root.
+
+== Verifying Server Status ==
+
+Access `/notifications/status/` to verify the server is operational. You should
+see a table showing stats like "uptime" and connection/message counts if the
+server is working. If it isn't working, you should see an error.
+
+== Testing the Server ==
+
+The easiest way to test the server is to open a Maniphest Task or Differential
+Revision in two browser windows at the same time, then comment on it with one.
+You should get a notification in the other window.
+
+NOTE: This will stop working soon, since we'll soon stop delivering
+notifications about your own actions. We'll provide an alternate way to test
+operation when this stops working.
+
+== Debugging Server Problems ==
+
+You can run `aphlict` in the foreground to get output to your console:
+
+  phabricator/ $ ./bin/aphlict --foreground
+
+This may help identify and resolve problems.
+
+The server also generates a log, by default in `/var/log/aphlict.log`. You can
+change this location by changing `notification.log` in your configuration. The
+log may contain information useful in resolving issues.