From 9a1215e13bf3eb5e2d8dca797dc563a1f722c02e Mon Sep 17 00:00:00 2001
From: Rapptz <rapptz@gmail.com>
Date: Mon, 27 Feb 2017 23:03:46 -0500
Subject: [PATCH] Add support for message acking.

---
 discord/guild.py   | 22 +++++++++++++++++++++-
 discord/http.py    | 11 +++++++++++
 discord/message.py | 22 +++++++++++++++++++++-
 3 files changed, 53 insertions(+), 2 deletions(-)

diff --git a/discord/guild.py b/discord/guild.py
index 878ceb031..760632bce 100644
--- a/discord/guild.py
+++ b/discord/guild.py
@@ -36,7 +36,7 @@ from .emoji import Emoji
 from .game import Game
 from .permissions import PermissionOverwrite
 from .colour import Colour
-from .errors import InvalidArgument
+from .errors import InvalidArgument, ClientException
 from .channel import *
 from .enums import GuildRegion, Status, ChannelType, try_enum, VerificationLevel
 from .mixins import Hashable
@@ -979,3 +979,23 @@ class Guild(Hashable):
             Unbanning failed.
         """
         yield from self._state.http.unban(user.id, self.id)
+
+    def ack(self):
+        """|coro|
+
+        Marks every message in this guild as read.
+
+        The user must not be a bot user.
+
+        Raises
+        -------
+        HTTPException
+            Acking failed.
+        ClientException
+            You must not be a bot user.
+        """
+
+        state = self._state
+        if state.is_bot:
+            raise ClientException('Must not be a bot account to ack messages.')
+        return state.http.ack_guild(self.id)
diff --git a/discord/http.py b/discord/http.py
index baa9a7490..29f4fdfc2 100644
--- a/discord/http.py
+++ b/discord/http.py
@@ -227,6 +227,7 @@ class HTTPClient:
     def _token(self, token, *, bot=True):
         self.token = token
         self.bot_token = bot
+        self._ack_token = None
 
     # login management
 
@@ -321,6 +322,16 @@ class HTTPClient:
 
         return self.request(r, data=form)
 
+    @asyncio.coroutine
+    def ack_message(self, channel_id, message_id):
+        r = Route('POST', '/channels/{channel_id}/messages/{message_id}/ack', channel_id=channel_id,
+                                                                          message_id=message_id)
+        data = yield from self.request(r, json={'token': self._ack_token})
+        self._ack_token = data['token']
+
+    def ack_guild(self, guild_id):
+        return self.request(Route('POST', '/guilds/{guild_id}/ack', guild_id=guild_id))
+
     def delete_message(self, channel_id, message_id):
         r = Route('DELETE', '/channels/{channel_id}/messages/{message_id}', channel_id=channel_id,
                                                                             message_id=message_id)
diff --git a/discord/message.py b/discord/message.py
index 7c809d9f6..cec7647eb 100644
--- a/discord/message.py
+++ b/discord/message.py
@@ -36,7 +36,7 @@ from .emoji import Emoji
 from .object import Object
 from .calls import CallMessage
 from .enums import MessageType, try_enum
-from .errors import InvalidArgument
+from .errors import InvalidArgument, ClientException
 from .embeds import Embed
 
 class Message:
@@ -576,3 +576,23 @@ class Message:
             You do not have the proper permissions to remove all the reactions.
         """
         yield from self._state.http.clear_reactions(self.id, self.channel.id)
+
+    def ack(self):
+        """|coro|
+
+        Marks this message as read.
+
+        The user must not be a bot user.
+
+        Raises
+        -------
+        HTTPException
+            Acking failed.
+        ClientException
+            You must not be a bot user.
+        """
+
+        state = self._state
+        if state.is_bot:
+            raise ClientException('Must not be a bot account to ack messages.')
+        return state.http.ack_message(self.channel.id, self.id)