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Implement a bunch of other HTTP request functions.

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Rapptz 9 years ago
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410e41e78d
2 changed files with 339 additions and 17 deletions
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  1. 349
      discord/async_client.py
  2. 7
      docs/api.rst

349
discord/async_client.py
View File

@ -55,11 +55,14 @@ class Client:
A number of options can be passed to the :class:`Client`.
.. _deque: https://docs.python.org/3.4/library/collections.html#collections.deque
.. _event loop: https://docs.python.org/3/library/asyncio-eventloops.html
Parameters
----------
max_messages : Optional[int]
The maximum number of messages to store in :attr:`messages`.
This defaults to 5000. Passing in `None` or a value of ``<= 0``
This defaults to 5000. Passing in `None` or a value less than 100
will use the default instead of the passed in value.
loop : Optional[event loop].
The `event loop`_ to use for asynchronous operations. Defaults to ``None``,
@ -73,20 +76,18 @@ class Client:
The servers that the connected client is a member of.
private_channels : list of :class:`PrivateChannel`
The private channels that the connected client is participating on.
messages : deque_ of :class:`Message`
messages
A deque_ of :class:`Message` that the client has received from all
servers and private messages. The number of messages stored in this
deque is controlled by the ``max_messages`` parameter.
email : Optional[str]
email
The email used to login. This is only set if login is successful,
otherwise it's None.
gateway : Optional[str]
gateway
The websocket gateway the client is currently connected to. Could be None.
loop
The `event loop`_ that the client uses for HTTP requests and websocket operations.
.. _deque: https://docs.python.org/3.4/library/collections.html#collections.deque
.. _event loop: https://docs.python.org/3/library/asyncio-eventloops.html
"""
def __init__(self, *, loop=None, **options):
self.ws = None
@ -95,7 +96,7 @@ class Client:
self.loop = asyncio.get_event_loop() if loop is None else loop
max_messages = options.get('max_messages')
if max_messages is None or max_messages <= 0:
if max_messages is None or max_messages < 100:
max_messages = 5000
self.connection = ConnectionState(self.dispatch, max_messages)
@ -161,6 +162,11 @@ class Client:
"""bool: Indicates if the client has logged in successfully."""
return self._is_logged_in
@property
def is_closed(self):
"""bool: Indicates if the websocket connection is closed."""
return self._closed
@asyncio.coroutine
def _get_gateway(self):
resp = yield from self.session.get(endpoints.GATEWAY, headers=self.headers)
@ -191,6 +197,53 @@ class Client:
"""Returns a :class:`Channel` or :class:`PrivateChannel` with the following ID. If not found, returns None."""
return self.connection.get_channel(id)
def get_all_channels(self):
"""A generator that retrieves every :class:`Channel` the client can 'access'.
This is equivalent to: ::
for server in client.servers:
for channel in server.channels:
yield channel
Note
-----
Just because you receive a :class:`Channel` does not mean that
you can communicate in said channel. :meth:`Channel.permissions_for` should
be used for that.
"""
for server in self.servers:
for channel in server.channels:
yield channel
def get_all_members(self):
"""Returns a generator with every :class:`Member` the client can see.
This is equivalent to: ::
for server in client.servers:
for member in server.members:
yield member
"""
for server in self.servers:
for member in server.members:
yield member
@asyncio.coroutine
def close(self):
"""Closes the websocket connection.
To reconnect the websocket connection, :meth:`connect` must be used.
"""
if self._closed:
return
yield from self.ws.close()
self.keep_alive.cancel()
self._closed = True
@asyncio.coroutine
def login(self, email, password):
"""|coro|
@ -338,9 +391,7 @@ class Client:
while not self._closed:
msg = yield from self.ws.recv()
if msg is None:
yield from self.ws.close()
self._closed = True
self.keep_alive.cancel()
yield from self.close()
break
self.received_message(json.loads(msg))
@ -352,12 +403,22 @@ class Client:
The events must be a |corourl|_, if not, :exc:`ClientException` is raised.
Example: ::
Examples
---------
Using the basic :meth:`event` decorator: ::
@client.event
@asyncio.coroutine
def on_ready():
print('Ready!')
Saving characters by using the :meth:`async_event` decorator: ::
@client.async_event
def on_ready():
print('Ready!')
"""
if not asyncio.iscoroutinefunction(coro):
@ -367,6 +428,13 @@ class Client:
log.info('{0.__name__} has successfully been registered as an event'.format(coro))
return coro
def async_event(self, coro):
"""A shorthand decorator for ``asyncio.coroutine`` + :meth:`event`."""
if not asyncio.iscoroutinefunction(coro):
coro = asyncio.coroutine(coro)
return self.event(coro)
@asyncio.coroutine
def start_private_message(self, user):
"""|coro|
@ -388,19 +456,22 @@ class Client:
------
HTTPException
The request failed.
InvalidArgument
The user argument was not of :class:`User`.
"""
if not isinstance(user, User):
raise TypeError('user argument must be a User')
raise InvalidArgument('user argument must be a User')
payload = {
'recipient_id': user.id
}
r = requests.post('{}/{}/channels'.format(endpoints.USERS, self.user.id), json=payload, headers=self.headers)
log.debug(request_logging_format.format(response=r))
utils._verify_successful_response(r)
data = r.json()
url = '{}/{}/channels'.format(endpoints.USERS, self.user.id)
r = yield from self.session.post(url, data=to_json(payload), headers=self.headers)
log.debug(request_logging_format.format(method='POST', response=r))
yield from utils._verify_successful_response(r)
data = yield from r.json()
log.debug(request_success_log.format(response=r, json=payload, data=data))
self.private_channels.append(PrivateChannel(id=data['id'], user=user))
@ -441,6 +512,10 @@ class Client:
--------
HTTPException
Sending the message failed.
Forbidden
You do not have the proper permissions to send the message.
NotFound
The destination was not found and hence is invalid.
InvalidArgument
The destination parameter is invalid.
@ -472,3 +547,245 @@ class Client:
channel = self.get_channel(data.get('channel_id'))
message = Message(channel=channel, **data)
return message
@asyncio.coroutine
def send_typing(self, destination):
"""|coro|
Send a *typing* status to the destination.
*Typing* status will go away after 10 seconds, or after a message is sent.
The destination parameter follows the same rules as :meth:`send_message`.
Parameters
----------
destination
The location to send the typing update.
"""
channel_id = self._resolve_destination(destination)
url = '{base}/{id}/typing'.format(base=endpoints.CHANNELS, id=channel_id)
response = yield from self.session.post(url, headers=self.headers)
log.debug(request_logging_format.format(method='POST', response=response))
yield from utils._verify_successful_response(response)
@asyncio.coroutine
def send_file(self, destination, fp, filename=None):
"""|coro|
Sends a message to the destination given with the file given.
The destination parameter follows the same rules as :meth:`send_message`.
The ``fp`` parameter should be either a string denoting the location for a
file or a *file-like object*. The *file-like object* passed is **not closed**
at the end of execution. You are responsible for closing it yourself.
.. note::
If the file-like object passed is opened via ``open`` then the modes
'rb' should be used.
The ``filename`` parameter is the filename of the file.
If this is not given then it defaults to ``fp.name`` or if ``fp`` is a string
then the ``filename`` will default to the string given. You can overwrite
this value by passing this in.
Parameters
------------
destination
The location to send the message.
fp
The *file-like object* or file path to send.
filename : str
The filename of the file. Defaults to ``fp.name`` if it's available.
Raises
-------
InvalidArgument
If ``fp.name`` is an invalid default for ``filename``.
HTTPException
Sending the file failed.
Returns
--------
:class:`Message`
The message sent.
"""
channel_id = self._resolve_destination(destination)
url = '{base}/{id}/messages'.format(base=endpoints.CHANNELS, id=channel_id)
try:
# attempt to open the file and send the request
with open(fp, 'rb') as f:
files = {
'file': (fp if filename is None else filename, f)
}
except TypeError:
# if we got a TypeError then this is probably a file-like object
fname = getattr(fp, 'name', None) if filename is None else filename
if fname is None:
raise InvalidArgument('file-like object has no name attribute and no filename was specified')
files = {
'file': (fname, fp)
}
response = yield from self.session.post(url, files=files, headers=self.headers)
log.debug(request_logging_format.format(method='POST', response=response))
yield from utils._verify_successful_response(response)
data = yield from response.json()
msg = 'POST {0.url} returned {0.status} with {1} response'
log.debug(msg.format(response, data))
channel = self.get_channel(data.get('channel_id'))
message = Message(channel=channel, **data)
return message
@asyncio.coroutine
def delete_message(self, message):
"""|coro|
Deletes a :class:`Message`.
Your own messages could be deleted without any proper permissions. However to
delete other people's messages, you need the proper permissions to do so.
Parameters
-----------
message : :class:`Message`
The message to delete.
Raises
------
Forbidden
You do not have proper permissions to delete the message.
HTTPException
Deleting the message failed.
"""
url = '{}/{}/messages/{}'.format(endpoints.CHANNELS, message.channel.id, message.id)
response = yield from self.session.delete(url, headers=self.headers)
log.debug(request_logging_format.format(method='DELETE', response=response))
yield from utils._verify_successful_response(response)
@asyncio.coroutine
def edit_message(self, message, new_content, mentions=True):
"""|coro|
Edits a :class:`Message` with the new message content.
The new_content must be able to be transformed into a string via ``str(new_content)``.
Parameters
-----------
message : :class:`Message`
The message to edit.
new_content
The new content to replace the message with.
mentions
The mentions for the user. Same as :meth:`send_message`.
Raises
-------
HTTPException
Editing the message failed.
Returns
--------
:class:`Message`
The new edited message.
"""
channel = message.channel
content = str(new_content)
url = '{}/{}/messages/{}'.format(endpoints.CHANNELS, channel.id, message.id)
payload = {
'content': content,
'mentions': self._resolve_mentions(content, mentions)
}
response = yield from self.session.patch(url, headers=self.headers, data=to_json(payload))
log.debug(request_logging_format.format(method='PATCH', response=response))
yield from utils._verify_successful_response(response)
data = yield from response.json()
log.debug(request_success_log.format(response=response, json=payload, data=data))
return Message(channel=channel, **data)
@asyncio.coroutine
def logout(self):
"""|coro|
Logs out of Discord and closes all connections."""
response = yield from self.session.post(endpoints.LOGOUT, headers=self.headers)
yield from self.close()
self._is_logged_in = False
log.debug(request_logging_format.format(method='POST', response=response))
@asyncio.coroutine
def logs_from(self, channel, limit=100, *, before=None, after=None):
"""|coro|
This coroutine returns a generator that obtains logs from a specified channel.
Parameters
-----------
channel : :class:`Channel`
The channel to obtain the logs from.
limit : int
The number of messages to retrieve.
before : :class:`Message`
The message before which all returned messages must be.
after : :class:`Message`
The message after which all returned messages must be.
Raises
------
Forbidden
You do not have permissions to get channel logs.
NotFound
The channel you are requesting for doesn't exist.
HTTPException
The request to get logs failed.
Yields
-------
:class:`Message`
The message with the message data parsed.
Examples
---------
Basic logging: ::
logs = yield from client.logs_from(channel)
for message in logs:
if message.content.startswith('!hello'):
if message.author == client.user:
yield from client.edit_message(message, 'goodbye')
"""
def generator_wrapper(data):
for message in data:
yield Message(channel=channel, **message)
url = '{}/{}/messages'.format(endpoints.CHANNELS, channel.id)
params = {
'limit': limit
}
if before:
params['before'] = before.id
if after:
params['after'] = after.id
response = yield from self.session.get(url, params=params, headers=self.headers)
log.debug(request_logging_format.format(method='GET', response=response))
yield from utils._verify_successful_response(response)
messages = yield from response.json()
return generator_wrapper(messages)

7
docs/api.rst
View File

@ -17,7 +17,7 @@ The following section outlines the API of discord.py.
Client
-------
.. autoclass:: Client
.. autoclass:: discord.async_client.Client
:members:
.. _discord-api-events:
@ -59,6 +59,11 @@ to handle it, which defaults to print a traceback and ignore the exception.
def on_ready():
pass
Since this can be a potentially common mistake, there is a helper
decorator, :meth:`Client.async_event` to convert a basic function
into a coroutine and an event at the same time. Note that it is
not necessary if you use ``async def``.
.. versionadded:: 0.7.0
Subclassing to listen to events.

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