Mastodonplus.py/mastodon/Mastodon.py

# coding: utf-8

import os
import os.path
import mimetypes
import time
import random
import string
import datetime
import collections
from contextlib import closing
import pytz
import requests
from requests.models import urlencode
import dateutil
import dateutil.parser
import re
import copy
import threading
import sys
import six
from decorator import decorate
from cryptography.hazmat.backends import default_backend
from cryptography.hazmat.primitives.asymmetric import ec
import http_ece
import base64
import json

try:
    from urllib.parse import urlparse
except ImportError:
    from urlparse import urlparse

try:
    import magic
except ImportError:
    magic = None

###
# Version check functions, including decorator and parser
###
def parse_version_string(version_string):
    """Parses a semver version string, stripping off "rc" stuff if present."""
    string_parts =  version_string.split(".")
    version_parts = [
        int(re.match("([0-9]*)", string_parts[0]).group(0)),
        int(re.match("([0-9]*)", string_parts[1]).group(0)),
        int(re.match("([0-9]*)", string_parts[2]).group(0))
    ]
    return version_parts

def bigger_version(version_string_a, version_string_b):
    """Returns the bigger version of two version strings."""
    major_a, minor_a, patch_a = parse_version_string(version_string_a)
    major_b, minor_b, patch_b = parse_version_string(version_string_b)

    if major_a > major_b:
        return version_string_a
    elif major_a == major_b and minor_a > minor_b:
        return version_string_a
    elif major_a == major_b and minor_a == minor_b and patch_a > patch_b:
        return version_string_a
    return version_string_b

def api_version(created_ver, last_changed_ver, return_value_ver):
    """Version check decorator. Currently only checks Bigger Than."""
    def api_min_version_decorator(function):      
        def wrapper(function, self, *args, **kwargs):
            if not self.version_check_mode == "none":
                if self.version_check_mode == "created":
                    version = created_ver
                else:
                    version = bigger_version(last_changed_ver, return_value_ver)
                major, minor, patch = parse_version_string(version)
                if major > self.mastodon_major:
                    raise MastodonVersionError("Version check failed (Need version " + version + ")")
                elif major == self.mastodon_major and minor > self.mastodon_minor:
                    print(self.mastodon_minor)
                    raise MastodonVersionError("Version check failed (Need version " + version + ")")
                elif major == self.mastodon_major and minor == self.mastodon_minor and patch > self.mastodon_patch:
                    raise MastodonVersionError("Version check failed (Need version " + version + ", patch is " + str(self.mastodon_patch) + ")")
            return function(self, *args, **kwargs)
        function.__doc__ = function.__doc__ + "\n\n        *Added: Mastodon v" + created_ver + ", last changed: Mastodon v" + last_changed_ver + "*"
        return decorate(function, wrapper)
    return api_min_version_decorator

###
# Dict helper class.
# Defined at top level so it can be pickled.
###
class AttribAccessDict(dict):
    def __getattr__(self, attr):
        if attr in self:
            return self[attr]
        else:
            raise AttributeError("Attribute not found: " + str(attr))
    
    def __setattr__(self, attr, val):
        if attr in self:
            raise AttributeError("Attribute-style access is read only")
        super(AttribAccessDict, self).__setattr__(attr, val)

###
# The actual Mastodon class
###

class Mastodon:
    """
    Thorough and easy to use Mastodon
    api wrapper in python.

    If anything is unclear, check the official API docs at
    https://github.com/tootsuite/documentation/blob/master/Using-the-API/API.md
    """
    __DEFAULT_BASE_URL = 'https://mastodon.social'
    __DEFAULT_TIMEOUT = 300
    __DEFAULT_STREAM_TIMEOUT = 300
    __DEFAULT_STREAM_RECONNECT_WAIT_SEC = 5
    __DEFAULT_SCOPES = ['read', 'write', 'follow', 'push']
    __SCOPE_SETS = {
        'read': [
            'read:accounts', 
            'read:blocks', 
            'read:favourites', 
            'read:filters', 
            'read:follows', 
            'read:lists', 
            'read:mutes', 
            'read:notifications', 
            'read:search', 
            'read:statuses'
        ],
        'write': [
            'write:accounts', 
            'write:blocks', 
            'write:favourites', 
            'write:filters', 
            'write:follows', 
            'write:lists', 
            'write:media', 
            'write:mutes', 
            'write:notifications', 
            'write:reports', 
            'write:statuses',
        ],
        'follow': [
            'read:blocks',
            'read:follows',
            'read:mutes',
            'write:blocks',  
            'write:follows',
            'write:mutes', 
        ]
    }
    __VALID_SCOPES = ['read', 'write', 'follow', 'push'] + __SCOPE_SETS['read'] + __SCOPE_SETS['write']
        
    __SUPPORTED_MASTODON_VERSION = "2.4.3"
    
    # Dict versions
    __DICT_VERSION_APPLICATION = "2.7.2"
    __DICT_VERSION_MENTION = "1.0.0"
    __DICT_VERSION_MEDIA = "2.3.0"
    __DICT_VERSION_ACCOUNT = "2.4.0"
    __DICT_VERSION_STATUS = bigger_version(bigger_version(bigger_version(bigger_version("2.5.0", 
            __DICT_VERSION_MEDIA), __DICT_VERSION_ACCOUNT), __DICT_VERSION_APPLICATION), __DICT_VERSION_MENTION)
    __DICT_VERSION_INSTANCE = bigger_version("2.7.2", __DICT_VERSION_ACCOUNT)
    __DICT_VERSION_HASHTAG = "2.3.4"
    __DICT_VERSION_EMOJI = "2.1.0"
    __DICT_VERSION_RELATIONSHIP = "2.5.0"
    __DICT_VERSION_NOTIFICATION = bigger_version(bigger_version("1.0.0",  __DICT_VERSION_ACCOUNT), __DICT_VERSION_STATUS)
    __DICT_VERSION_CONTEXT = bigger_version("1.0.0",  __DICT_VERSION_STATUS)
    __DICT_VERSION_LIST = "2.1.0"
    __DICT_VERSION_CARD = "2.0.0"
    __DICT_VERSION_SEARCHRESULT = bigger_version(bigger_version(bigger_version("1.0.0", 
            __DICT_VERSION_ACCOUNT), __DICT_VERSION_STATUS), __DICT_VERSION_HASHTAG)
    __DICT_VERSION_ACTIVITY = "2.1.2" 
    __DICT_VERSION_REPORT = "1.1.0"
    __DICT_VERSION_PUSH = "2.4.0"
    __DICT_VERSION_PUSH_NOTIF = "2.4.0"
    __DICT_VERSION_FILTER = "2.4.3"
    __DICT_VERSION_CONVERSATION = bigger_version(bigger_version("2.6.0", __DICT_VERSION_ACCOUNT), __DICT_VERSION_STATUS)
    __DICT_VERSION_SCHEDULED_STATUS = bigger_version("2.7.0", __DICT_VERSION_STATUS)
    
    ###
    # Registering apps
    ###
    @staticmethod
    def create_app(client_name, scopes=__DEFAULT_SCOPES, redirect_uris=None, website=None, to_file=None,
                   api_base_url=__DEFAULT_BASE_URL, request_timeout=__DEFAULT_TIMEOUT, session=None):
        """
        Create a new app with given `client_name` and `scopes` (The basic scropse are "read", "write", "follow" and "push" 
        - more granular scopes are available, please refere to Mastodon documentation for which).

        Specify `redirect_uris` if you want users to be redirected to a certain page after authenticating in an oauth flow.
        You can specify multiple URLs by passing a list. Note that if you wish to use OAuth authentication with redirects,
        the redirect URI must be one of the URLs specified here.
        
        Specify `to_file` to persist your apps info to a file so you can use them in the constructor.
        Specify `api_base_url` if you want to register an app on an instance different from the flagship one.        
        Specify `website` to give a website for your app.

        Specify `session` with a requests.Session for it to be used instead of the deafult.
        
        Presently, app registration is open by default, but this is not guaranteed to be the case for all
        future mastodon instances or even the flagship instance in the future.
        

        Returns `client_id` and `client_secret`, both as strings.
        """
        api_base_url = Mastodon.__protocolize(api_base_url)

        request_data = {
            'client_name': client_name,
            'scopes': " ".join(scopes)
        }

        try:
            if redirect_uris is not None:
                if isinstance(redirect_uris, (list, tuple)):
                    redirect_uris = "\n".join(list(redirect_uris))
                request_data['redirect_uris'] = redirect_uris
            else:
                request_data['redirect_uris'] = 'urn:ietf:wg:oauth:2.0:oob'
            if website is not None:
                request_data['website'] = website
            if session:
                ret = session.post(api_base_url + '/api/v1/apps', data=request_data, timeout=request_timeout)
                response = ret.json()
            else:
                response = requests.post(api_base_url + '/api/v1/apps', data=request_data, timeout=request_timeout)
                response = response.json()
        except Exception as e:
            raise MastodonNetworkError("Could not complete request: %s" % e)

        if to_file is not None:
            with open(to_file, 'w') as secret_file:
                secret_file.write(response['client_id'] + '\n')
                secret_file.write(response['client_secret'] + '\n')

        return (response['client_id'], response['client_secret'])

    ###
    # Authentication, including constructor
    ###
    def __init__(self, client_id=None, client_secret=None, access_token=None,
                 api_base_url=__DEFAULT_BASE_URL, debug_requests=False,
                 ratelimit_method="wait", ratelimit_pacefactor=1.1,
                 request_timeout=__DEFAULT_TIMEOUT, mastodon_version=None,
                 version_check_mode = "created", session=None):
        """
        Create a new API wrapper instance based on the given `client_secret` and `client_id`. If you
        give a `client_id` and it is not a file, you must also give a secret. If you specify an
        `access_token` then you don't need to specify a `client_id`. It is allowed to specify
        neither - in this case, you will be restricted to only using endpoints that do not
        require authentication.

        You can also specify an `access_token`, directly or as a file (as written by `log_in()`_).

        Mastodon.py can try to respect rate limits in several ways, controlled by `ratelimit_method`.
        "throw" makes functions throw a `MastodonRatelimitError` when the rate
        limit is hit. "wait" mode will, once the limit is hit, wait and retry the request as soon
        as the rate limit resets, until it succeeds. "pace" works like throw, but tries to wait in
        between calls so that the limit is generally not hit (How hard it tries to not hit the rate
        limit can be controlled by ratelimit_pacefactor). The default setting is "wait". Note that
        even in "wait" and "pace" mode, requests can still fail due to network or other problems! Also
        note that "pace" and "wait" are NOT thread safe.

        Specify `api_base_url` if you wish to talk to an instance other than the flagship one.
        If a file is given as `client_id`, client ID and secret are read from that file.

        By default, a timeout of 300 seconds is used for all requests. If you wish to change this,
        pass the desired timeout (in seconds) as `request_timeout`.

        For fine-tuned control over the requests object use `session` with a requests.Session.
                
        The `mastodon_version` parameter can be used to specify the version of Mastodon that Mastodon.py will
        expect to be installed on the server. The function will throw an error if an unparseable 
        Version is specified. If no version is specified, Mastodon.py will set `mastodon_version` to the 
        detected version.
        
        The version check mode can be set to "created" (the default behaviour), "changed" or "none". If set to 
        "created", Mastodon.py will throw an error if the version of Mastodon it is connected to is too old
        to have an endpoint. If it is set to "changed", it will throw an error if the endpoints behaviour has
        changed after the version of Mastodon that is connected has been released. If it is set to "none",
        version checking is disabled.
        """
        self.api_base_url = Mastodon.__protocolize(api_base_url)
        self.client_id = client_id
        self.client_secret = client_secret
        self.access_token = access_token
        self.debug_requests = debug_requests
        self.ratelimit_method = ratelimit_method
        self._token_expired = datetime.datetime.now()
        self._refresh_token = None
        
        self.__logged_in_id = None
        
        self.ratelimit_limit = 300
        self.ratelimit_reset = time.time()
        self.ratelimit_remaining = 300
        self.ratelimit_lastcall = time.time()
        self.ratelimit_pacefactor = ratelimit_pacefactor

        self.request_timeout = request_timeout

        if session:
            self.session = session
        else:
            self.session = requests.Session()

        # Versioning
        if mastodon_version == None:
            self.retrieve_mastodon_version()
        else:
            try:
                self.mastodon_major, self.mastodon_minor, self.mastodon_patch = parse_version_string(mastodon_version)
            except:
                raise MastodonVersionError("Bad version specified")
        
        if not version_check_mode in ["created", "changed", "none"]:
            raise MastodonIllegalArgumentError("Invalid version check method.")
        self.version_check_mode = version_check_mode
        
        # Ratelimiting parameter check
        if ratelimit_method not in ["throw", "wait", "pace"]:
            raise MastodonIllegalArgumentError("Invalid ratelimit method.")
        
        # Token loading
        if self.client_id is not None:
            if os.path.isfile(self.client_id):
                with open(self.client_id, 'r') as secret_file:
                    self.client_id = secret_file.readline().rstrip()
                    self.client_secret = secret_file.readline().rstrip()
            else:
                if self.client_secret is None:
                    raise MastodonIllegalArgumentError('Specified client id directly, but did not supply secret')

        if self.access_token is not None and os.path.isfile(self.access_token):
            with open(self.access_token, 'r') as token_file:
                self.access_token = token_file.readline().rstrip()
    
    def retrieve_mastodon_version(self):
        """
        Determine installed mastodon version and set major, minor and patch (not including RC info) accordingly.
        
        Returns the version string, possibly including rc info.
        """
        try:
            version_str = self.__instance()["version"]
        except:
            # instance() was added in 1.1.0, so our best guess is 1.0.0.
            version_str = "1.0.0"
            
        self.mastodon_major, self.mastodon_minor, self.mastodon_patch = parse_version_string(version_str)
        return version_str
        
    def verify_minimum_version(self, version_str):
        """
        Update version info from server and verify that at least the specified version is present.
        
        Returns True if version requirement is satisfied, False if not.
        """
        self.retrieve_mastodon_version()
        major, minor, patch = parse_version_string(version_str)
        if major > self.mastodon_major:
            return False
        elif major == self.mastodon_major and minor > self.mastodon_minor:
            return False
        elif major == self.mastodon_major and minor == self.mastodon_minor and patch > self.mastodon_patch:
            return False
        return True

    @staticmethod
    def get_supported_version():
        """
        Retrieve the maximum version of Mastodon supported by this version of Mastodon.py
        """
        return Mastodon.__SUPPORTED_MASTODON_VERSION
    
    def auth_request_url(self, client_id=None, redirect_uris="urn:ietf:wg:oauth:2.0:oob",
                         scopes=__DEFAULT_SCOPES, force_login=False):
        """
        Returns the url that a client needs to request an oauth grant from the server.
        
        To log in with oauth, send your user to this URL. The user will then log in and
        get a code which you can pass to log_in.
        
        scopes are as in `log_in()`_, redirect_uris is where the user should be redirected to
        after authentication. Note that redirect_uris must be one of the URLs given during
        app registration. When using urn:ietf:wg:oauth:2.0:oob, the code is simply displayed,
        otherwise it is added to the given URL as the "code" request parameter.
        
        Pass force_login if you want the user to always log in even when already logged
        into web mastodon (i.e. when registering multiple different accounts in an app).
        """
        if client_id is None:
            client_id = self.client_id
        else:
            if os.path.isfile(client_id):
                with open(client_id, 'r') as secret_file:
                    client_id = secret_file.readline().rstrip()

        params = dict()
        params['client_id'] = client_id
        params['response_type'] = "code"
        params['redirect_uri'] = redirect_uris
        params['scope'] = " ".join(scopes)
        params['force_login'] = force_login
        formatted_params = urlencode(params)
        return "".join([self.api_base_url, "/oauth/authorize?", formatted_params])

    def log_in(self, username=None, password=None,
               code=None, redirect_uri="urn:ietf:wg:oauth:2.0:oob", refresh_token=None,
               scopes=__DEFAULT_SCOPES, to_file=None):
        """
        Get the access token for a user.
        
        The username is the e-mail used to log in into mastodon.

        Can persist access token to file `to_file`, to be used in the constructor.

        Handles password and OAuth-based authorization.
        
        Will throw a `MastodonIllegalArgumentError` if the OAuth or the
        username / password credentials given are incorrect, and
        `MastodonAPIError` if all of the requested scopes were not granted.

        For OAuth2, obtain a code via having your user go to the url returned by 
        `auth_request_url()`_ and pass it as the code parameter. In this case,
        make sure to also pass the same redirect_uri parameter as you used when
        generating the auth request URL.

        Returns the access token as a string.
        """
        if username is not None and password is not None:
            params = self.__generate_params(locals(), ['scopes', 'to_file', 'code', 'refresh_token'])
            params['grant_type'] = 'password'
        elif code is not None:
            params = self.__generate_params(locals(), ['scopes', 'to_file', 'username', 'password', 'refresh_token'])
            params['grant_type'] = 'authorization_code'
        elif refresh_token is not None:
            params = self.__generate_params(locals(), ['scopes', 'to_file', 'username', 'password', 'code'])
            params['grant_type'] = 'refresh_token'
        else:
            raise MastodonIllegalArgumentError('Invalid arguments given. username and password or code are required.')

        params['client_id'] = self.client_id
        params['client_secret'] = self.client_secret
        params['scope'] = " ".join(scopes)

        try:
            response = self.__api_request('POST', '/oauth/token', params, do_ratelimiting=False)
            self.access_token = response['access_token']
            self.__set_refresh_token(response.get('refresh_token'))
            self.__set_token_expired(int(response.get('expires_in', 0)))
        except Exception as e:
            if username is not None or password is not None:
                raise MastodonIllegalArgumentError('Invalid user name, password, or redirect_uris: %s' % e)
            elif code is not None:
                raise MastodonIllegalArgumentError('Invalid access token or redirect_uris: %s' % e)
            else:
                raise MastodonIllegalArgumentError('Invalid request: %s' % e)

        received_scopes = response["scope"].split(" ")
        for scope_set in self.__SCOPE_SETS.keys():
            if scope_set in received_scopes:
                received_scopes += self.__SCOPE_SETS[scope_set]
        
        if not set(scopes) <= set(received_scopes):
            raise MastodonAPIError(
                'Granted scopes "' + " ".join(received_scopes) + '" do not contain all of the requested scopes "' + " ".join(scopes) + '".')

        if to_file is not None:
            with open(to_file, 'w') as token_file:
                token_file.write(response['access_token'] + '\n')
        
        self.__logged_in_id = None
        
        return response['access_token']
    
    @api_version("2.7.0", "2.7.0", "2.7.0")
    def create_account(self, username, password, email, agreement=False, locale="en", scopes=__DEFAULT_SCOPES, to_file=None):
        """
        Creates a new user account with the given username, password and email. "agreement"
        must be set to true (after showing the user the instances user agreement and having
        them agree to it), "locale" specifies the language for the confirmation e-mail as an
        ISO 639-1 (two-letter) language code.
        
        Does not require an access token, but does require a client grant.
        
        By default, this method is rate-limited by IP to 5 requests per 30 minutes.
        
        Returns an access token (just like log_in), which it can also persist to to_file,
        and sets it internally so that the user is now logged in. Note that this token 
        can only be used after the user has confirmed their e-mail.
        """
        params = self.__generate_params(locals(), ['to_file', 'scopes'])
        params['client_id'] = self.client_id
        params['client_secret'] = self.client_secret
        
        if agreement == False:
            del params_initial['agreement']
        
        # Step 1: Get a user-free token via oauth
        try:
            oauth_params = {}
            oauth_params['scope'] = " ".join(scopes)
            oauth_params['client_id'] = self.client_id
            oauth_params['client_secret'] = self.client_secret
            oauth_params['grant_type'] = 'client_credentials'
            
            response = self.__api_request('POST', '/oauth/token', oauth_params, do_ratelimiting=False)
            temp_access_token = response['access_token']
        except Exception as e:
            raise MastodonIllegalArgumentError('Invalid request during oauth phase: %s' % e)
        
        # Step 2: Use that to create a user
        try:
            response = self.__api_request('POST', '/api/v1/accounts', params, do_ratelimiting=False, 
                                          access_token_override = temp_access_token)
            self.access_token = response['access_token']
            self.__set_refresh_token(response.get('refresh_token'))
            self.__set_token_expired(int(response.get('expires_in', 0)))
        except Exception as e:
            raise MastodonIllegalArgumentError('Invalid request: %s' % e)
        
        # Step 3: Check scopes, persist, et cetera
        received_scopes = response["scope"].split(" ")
        for scope_set in self.__SCOPE_SETS.keys():
            if scope_set in received_scopes:
                received_scopes += self.__SCOPE_SETS[scope_set]
        
        if not set(scopes) <= set(received_scopes):
            raise MastodonAPIError(
                'Granted scopes "' + " ".join(received_scopes) + '" do not contain all of the requested scopes "' + " ".join(scopes) + '".')
        
        if to_file is not None:
            with open(to_file, 'w') as token_file:
                token_file.write(response['access_token'] + '\n')
        
        self.__logged_in_id = None
        
        return response['access_token']
        
    ###
    # Reading data: Instances
    ###
    @api_version("1.1.0", "2.3.0", __DICT_VERSION_INSTANCE)
    def instance(self):
        """
        Retrieve basic information about the instance, including the URI and administrative contact email.

        Does not require authentication.

        Returns an `instance dict`_.
        """
        return self.__instance()

    def __instance(self):
        """
        Internal, non-version-checking helper that does the same as instance()
        """
        return self.__api_request('GET', '/api/v1/instance/')

    @api_version("2.1.2", "2.1.2", __DICT_VERSION_ACTIVITY)
    def instance_activity(self):
        """
        Retrieve activity stats about the instance. May be disabled by the instance administrator - throws
        a MastodonNotFoundError in that case.
        
        Activity is returned for 12 weeks going back from the current week.
        
        Returns a list `activity dicts`_.
        """
        return self.__api_request('GET', '/api/v1/instance/activity')

    @api_version("2.1.2", "2.1.2", "2.1.2")
    def instance_peers(self):
        """
        Retrieve the instances that this instance knows about. May be disabled by the instance administrator - throws
        a MastodonNotFoundError in that case.
        
        Returns a list of URL strings.
        """
        return self.__api_request('GET', '/api/v1/instance/peers')

    ###
    # Reading data: Timelines
    ##
    @api_version("1.0.0", "2.6.0", __DICT_VERSION_STATUS)
    def timeline(self, timeline="home", max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetch statuses, most recent ones first. `timeline` can be 'home', 'local', 'public',
        'tag/hashtag' or 'list/id'. See the following functions documentation for what those do.
        Local hashtag timelines are supported via the `timeline_hashtag()`_ function.
        
        The default timeline is the "home" timeline.

        Media only queries are supported via the `timeline_public()`_ and `timeline_hashtag()`_ functions.

        Returns a list of `toot dicts`_.
        """
        if max_id != None:
            max_id = self.__unpack_id(max_id)
        
        if min_id != None:
            min_id = self.__unpack_id(min_id)
            
        if since_id != None:
            since_id = self.__unpack_id(since_id)
        
        params_initial = locals()

        if timeline == "local":
            timeline = "public"
            params_initial['local'] = True

        params = self.__generate_params(params_initial, ['timeline'])
        url = '/api/v1/timelines/{0}'.format(timeline)
        return self.__api_request('GET', url, params)
    
    @api_version("1.0.0", "2.6.0", __DICT_VERSION_STATUS)
    def timeline_home(self, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetch the logged-in users home timeline (i.e. followed users and self).

        Returns a list of `toot dicts`_.
        """
        return self.timeline('home', max_id=max_id, min_id=min_id, 
                             since_id=since_id, limit=limit)

    @api_version("1.0.0", "2.6.0", __DICT_VERSION_STATUS)
    def timeline_local(self, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetches the local / instance-wide timeline, not including replies.

        Returns a list of `toot dicts`_.
        """
        return self.timeline('local', max_id=max_id, min_id=min_id,
                             since_id=since_id, limit=limit)

    @api_version("1.0.0", "2.6.0", __DICT_VERSION_STATUS)
    def timeline_public(self, max_id=None, min_id=None, since_id=None, limit=None, only_media=False):
        """
        Fetches the public / visible-network timeline, not including replies.

        Set `only_media` to True to retrieve only statuses with media attachments.

        Returns a list of `toot dicts`_.
        """
        if max_id != None:
            max_id = self.__unpack_id(max_id)
            
        if min_id != None:
            min_id = self.__unpack_id(min_id)
        
        if since_id != None:
            since_id = self.__unpack_id(since_id)
        
        params_initial = locals()        
        
        if only_media == False:
            del params_initial['only_media']
            
        url = '/api/v1/timelines/public'        
        params = self.__generate_params(params_initial)
        
        return self.__api_request('GET', url, params)

    @api_version("1.0.0", "2.6.0", __DICT_VERSION_STATUS)    
    def timeline_hashtag(self, hashtag, local=False, max_id=None, min_id=None, since_id=None, limit=None, only_media=False):
        """
        Fetch a timeline of toots with a given hashtag. The hashtag parameter
        should not contain the leading #.

        Set `local` to True to retrieve only instance-local tagged posts.
        Set `only_media` to True to retrieve only statuses with media attachments.
        
        Returns a list of `toot dicts`_.
        """
        if hashtag.startswith("#"):
            raise MastodonIllegalArgumentError("Hashtag parameter should omit leading #")
            
        if max_id != None:
            max_id = self.__unpack_id(max_id)
        
        if min_id != None:
            min_id = self.__unpack_id(min_id)        
        
        if since_id != None:
            since_id = self.__unpack_id(since_id)
            
        params_initial = locals()        
        
        if local == False:
            del params_initial['local']
        
        if only_media == False:
            del params_initial['only_media']
            
        url = '/api/v1/timelines/tag/{0}'.format(hashtag)        
        params = self.__generate_params(params_initial, ['hashtag'])
        
        return self.__api_request('GET', url, params)

    @api_version("2.1.0", "2.6.0", __DICT_VERSION_STATUS)
    def timeline_list(self, id, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetches a timeline containing all the toots by users in a given list.

        Returns a list of `toot dicts`_.
        """
        id = self.__unpack_id(id)
        return self.timeline('list/{0}'.format(id), max_id=max_id,
                             min_id=min_id, since_id=since_id, limit=limit)

    @api_version("2.6.0", "2.6.0", __DICT_VERSION_CONVERSATION)
    def conversations(self, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetches a users conversations.
        
        Returns a list of `conversation dicts`_.
        """
        if max_id != None:
            max_id = self.__unpack_id(max_id)
        
        if min_id != None:
            min_id = self.__unpack_id(min_id)
            
        if since_id != None:
            since_id = self.__unpack_id(since_id)            
        
        params = self.__generate_params(locals())
        return self.__api_request('GET', "/api/v1/conversations/", params)
        
    ###
    # Reading data: Statuses
    ###
    @api_version("1.0.0", "2.0.0", __DICT_VERSION_STATUS)
    def status(self, id):
        """
        Fetch information about a single toot.

        Does not require authentication for publicly visible statuses.

        Returns a `toot dict`_.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}'.format(str(id))
        return self.__api_request('GET', url)

    @api_version("1.0.0", "1.0.0", __DICT_VERSION_CARD)
    def status_card(self, id):
        """
        Fetch a card associated with a status. A card describes an object (such as an
        external video or link) embedded into a status.

        Does not require authentication for publicly visible statuses.

        Returns a `card dict`_.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}/card'.format(str(id))
        return self.__api_request('GET', url)

    @api_version("1.0.0", "1.0.0", __DICT_VERSION_CONTEXT)
    def status_context(self, id):
        """
        Fetch information about ancestors and descendants of a toot.

        Does not require authentication for publicly visible statuses.

        Returns a `context dict`_.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}/context'.format(str(id))
        return self.__api_request('GET', url)

    @api_version("1.0.0", "2.1.0", __DICT_VERSION_ACCOUNT)
    def status_reblogged_by(self, id):
        """
        Fetch a list of users that have reblogged a status.

        Does not require authentication for publicly visible statuses.

        Returns a list of `user dicts`_.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}/reblogged_by'.format(str(id))
        return self.__api_request('GET', url)

    @api_version("1.0.0", "2.1.0", __DICT_VERSION_ACCOUNT)
    def status_favourited_by(self, id):
        """
        Fetch a list of users that have favourited a status.

        Does not require authentication for publicly visible statuses.

        Returns a list of `user dicts`_.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}/favourited_by'.format(str(id))
        return self.__api_request('GET', url)

    ###
    # Reading data: Scheduled statuses
    ###
    @api_version("2.7.0", "2.7.0", __DICT_VERSION_SCHEDULED_STATUS)
    def scheduled_statuses(self):
        """
        Fetch a list of scheduled statuses

        Returns a list of `scheduled toot dicts`_.
        """
        return self.__api_request('GET', '/api/v1/scheduled_statuses')
    
    @api_version("2.7.0", "2.7.0", __DICT_VERSION_SCHEDULED_STATUS)
    def scheduled_status(self, id):
        """
        Fetch information about the scheduled status with the given id.

        Returns a `scheduled toot dict`_.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/scheduled_statuses/{0}'.format(str(id))
        return self.__api_request('GET', url)
    
    ###
    # Reading data: Notifications
    ###
    @api_version("1.0.0", "2.6.0", __DICT_VERSION_NOTIFICATION)
    def notifications(self, id=None, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetch notifications (mentions, favourites, reblogs, follows) for the logged-in
        user.

        Can be passed an `id` to fetch a single notification.

        Returns a list of `notification dicts`_.
        """
        if max_id != None:
            max_id = self.__unpack_id(max_id)
        
        if min_id != None:
            min_id = self.__unpack_id(min_id)
        
        if since_id != None:
            since_id = self.__unpack_id(since_id)
        
        if id is None:
            params = self.__generate_params(locals(), ['id'])
            return self.__api_request('GET', '/api/v1/notifications', params)
        else:
            id = self.__unpack_id(id)
            url = '/api/v1/notifications/{0}'.format(str(id))
            return self.__api_request('GET', url)

    ###
    # Reading data: Accounts
    ###
    @api_version("1.0.0", "1.0.0", __DICT_VERSION_ACCOUNT)
    def account(self, id):
        """
        Fetch account information by user `id`.
        
        Does not require authentication.
        
        Returns a `user dict`_.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/accounts/{0}'.format(str(id))
        return self.__api_request('GET', url)
    
    @api_version("1.0.0", "2.1.0", __DICT_VERSION_ACCOUNT)
    def account_verify_credentials(self):
        """
        Fetch logged-in user's account information.

        Returns a `user dict`_ (Starting from 2.1.0, with an additional "source" field).
        """
        return self.__api_request('GET', '/api/v1/accounts/verify_credentials')

    @api_version("1.0.0", "2.7.0", __DICT_VERSION_STATUS)
    def account_statuses(self, id, only_media=False, pinned=False, exclude_replies=False, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetch statuses by user `id`. Same options as `timeline()`_ are permitted.
        Returned toots are from the perspective of the logged-in user, i.e.
        all statuses visible to the logged-in user (including DMs) are
        included.

        If `only_media` is set, return only statuses with media attachments.
        If `pinned` is set, return only statuses that have been pinned. Note that 
        as of Mastodon 2.1.0, this only works properly for instance-local users.
        If `exclude_replies` is set, filter out all statuses that are replies.

        Does not require authentication.

        Returns a list of `toot dicts`_.
        """
        id = self.__unpack_id(id)
        if max_id != None:
            max_id = self.__unpack_id(max_id)
        
        if min_id != None:
            min_id = self.__unpack_id(min_id)
        
        if since_id != None:
            since_id = self.__unpack_id(since_id)
        
        params = self.__generate_params(locals(), ['id'])
        if pinned == False:
            del params["pinned"]
        if only_media == False:
            del params["only_media"]
        if exclude_replies == False:
            del params["exclude_replies"]
        
        url = '/api/v1/accounts/{0}/statuses'.format(str(id))
        return self.__api_request('GET', url, params)

    @api_version("1.0.0", "2.6.0", __DICT_VERSION_ACCOUNT)
    def account_following(self, id, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetch users the given user is following.

        Returns a list of `user dicts`_.
        """
        id = self.__unpack_id(id)
        if max_id != None:
            max_id = self.__unpack_id(max_id)
        
        if min_id != None:
            min_id = self.__unpack_id(min_id)
        
        if since_id != None:
            since_id = self.__unpack_id(since_id)
            
        params = self.__generate_params(locals(), ['id'])
        url = '/api/v1/accounts/{0}/following'.format(str(id))
        return self.__api_request('GET', url, params)

    @api_version("1.0.0", "2.6.0", __DICT_VERSION_ACCOUNT)
    def account_followers(self, id, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetch users the given user is followed by.

        Returns a list of `user dicts`_.
        """
        id = self.__unpack_id(id)
        if max_id != None:
            max_id = self.__unpack_id(max_id)
        
        if min_id != None:
            min_id = self.__unpack_id(min_id)
        
        if since_id != None:
            since_id = self.__unpack_id(since_id)
            
        params = self.__generate_params(locals(), ['id'])
        url = '/api/v1/accounts/{0}/followers'.format(str(id))
        return self.__api_request('GET', url, params)
    
    @api_version("1.0.0", "1.4.0", __DICT_VERSION_RELATIONSHIP)
    def account_relationships(self, id):
        """
        Fetch relationship (following, followed_by, blocking, follow requested) of 
        the logged in user to a given account. `id` can be a list.

        Returns a list of `relationship dicts`_.
        """
        id = self.__unpack_id(id)
        params = self.__generate_params(locals())
        return self.__api_request('GET', '/api/v1/accounts/relationships',
                                  params)

    @api_version("1.0.0", "2.3.0", __DICT_VERSION_ACCOUNT)
    def account_search(self, q, limit=None, following=False):
        """
        Fetch matching accounts. Will lookup an account remotely if the search term is
        in the username@domain format and not yet in the database. Set `following` to
        True to limit the search to users the logged-in user follows.

        Returns a list of `user dicts`_.
        """
        params = self.__generate_params(locals())
        
        if params["following"] == False:
            del params["following"]
            
        return self.__api_request('GET', '/api/v1/accounts/search', params)

    @api_version("2.1.0", "2.1.0", __DICT_VERSION_LIST)
    def account_lists(self, id):
        """
        Get all of the logged-in users lists which the specified user is
        a member of.
        
        Returns a list of `list dicts`_.
        """
        id = self.__unpack_id(id)
        params = self.__generate_params(locals(), ['id'])
        url = '/api/v1/accounts/{0}/lists'.format(str(id))
        return self.__api_request('GET', url, params)
    
    ###
    # Reading data: Keyword filters
    ###
    @api_version("2.4.3", "2.4.3", __DICT_VERSION_FILTER)
    def filters(self):
        """
        Fetch all of the logged-in users filters.
        
        Returns a list of `filter dicts`_. Not paginated.
        """
        return self.__api_request('GET', '/api/v1/filters')
        
    @api_version("2.4.3", "2.4.3", __DICT_VERSION_FILTER)
    def filter(self, id):
        """
        Fetches information about the filter with the specified `id`.
        
        Returns a `filter dict`_.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/filters/{0}'.format(str(id))
        return self.__api_request('GET', url)
    
    @api_version("2.4.3", "2.4.3", __DICT_VERSION_FILTER)
    def filters_apply(self, objects, filters, context):
        """
        Helper function: Applies a list of filters to a list of either statuses 
        or notifications and returns only those matched by none. This function will
        apply all filters that match the context provided in `context`, i.e.
        if you want to apply only notification-relevant filters, specify
        'notifications'. Valid contexts are 'home', 'notifications', 'public' and 'thread'.
        """
        
        # Build filter regex
        filter_strings = []
        for keyword_filter in filters: 
            if not context in keyword_filter["context"]:
                continue
            
            filter_string = re.escape(keyword_filter["phrase"])
            if keyword_filter["whole_word"] == True:
                filter_string = "\\b" + filter_string + "\\b"
            filter_strings.append(filter_string)
        filter_re = re.compile("|".join(filter_strings), flags = re.IGNORECASE)
        
        # Apply
        filter_results = []
        for filter_object in objects:
            filter_status = filter_object
            if "status" in filter_object:
                filter_status = filter_object["status"]
            filter_text = filter_status["content"]
            filter_text = re.sub(r"<.*?>", " ", filter_text)
            filter_text = re.sub(r"\s+", " ", filter_text).strip()
            if not filter_re.search(filter_text):
                filter_results.append(filter_object)
        return filter_results
    
    ###
    # Reading data: Follow suggestions
    ###
    @api_version("2.4.3", "2.4.3", __DICT_VERSION_ACCOUNT)
    def suggestions(self):
        """
        Fetch follow suggestions for the logged-in user.

        Returns a list of `user dicts`_.
        
        """
        return self.__api_request('GET', '/api/v1/suggestions')
    
    ###
    # Reading data: Endorsements
    ###
    @api_version("2.5.0", "2.5.0", __DICT_VERSION_ACCOUNT)
    def endorsements(self):
        """
        Fetch list of users endorsemed by the logged-in user.

        Returns a list of `user dicts`_.
        
        """
        return self.__api_request('GET', '/api/v1/endorsements')
    
    
    ###
    # Reading data: Searching
    ###
    @api_version("1.1.0", "2.1.0", __DICT_VERSION_SEARCHRESULT)
    def search(self, q, resolve=False):
        """
        Fetch matching hashtags, accounts and statuses. Will search federated
        instances if resolve is True. Full-text search is only enabled if
        the instance supports it, and is restricted to statuses the logged-in
        user wrote or was mentioned in.

        Returns a `search result dict`_.
        """
        params = self.__generate_params(locals())
        return self.__api_request('GET', '/api/v1/search', params)

    @api_version("2.4.3", "2.4.3", __DICT_VERSION_SEARCHRESULT)
    def search_v2(self, q, resolve=False):
        """
        Identical to `search()`, except in that it returns tags as
        `hashtag dicts`_.

        Returns a `search result dict`_.
        """
        params = self.__generate_params(locals())
        return self.__api_request('GET', '/api/v2/search', params)

    ###
    # Reading data: Lists
    ###
    @api_version("2.1.0", "2.1.0", __DICT_VERSION_LIST)
    def lists(self):
        """
        Fetch a list of all the Lists by the logged-in user.
        
        Returns a list of `list dicts`_.
        """
        return self.__api_request('GET', '/api/v1/lists')

    @api_version("2.1.0", "2.1.0", __DICT_VERSION_LIST)
    def list(self, id):
        """
        Fetch info about a specific list.
        
        Returns a `list dict`_.
        """
        id = self.__unpack_id(id)        
        return self.__api_request('GET', '/api/v1/lists/{0}'.format(id))

    @api_version("2.1.0", "2.6.0", __DICT_VERSION_ACCOUNT)
    def list_accounts(self, id, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Get the accounts that are on the given list. A `limit` of 0 can
        be specified to get all accounts without pagination.
        
        Returns a list of `user dicts`_.
        """
        id = self.__unpack_id(id)
        
        if max_id != None:
            max_id = self.__unpack_id(max_id)
        
        if min_id != None:
            min_id = self.__unpack_id(min_id)
        
        if since_id != None:
            since_id = self.__unpack_id(since_id)
        
        params = self.__generate_params(locals(), ['id']) 
        return self.__api_request('GET', '/api/v1/lists/{0}/accounts'.format(id))

    ###
    # Reading data: Mutes and Blocks
    ###
    @api_version("1.1.0", "2.6.0", __DICT_VERSION_ACCOUNT)    
    def mutes(self, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetch a list of users muted by the logged-in user.

        Returns a list of `user dicts`_.
        """
        if max_id != None:
            max_id = self.__unpack_id(max_id)
        
        if min_id != None:
            min_id = self.__unpack_id(min_id)        
        
        if since_id != None:
            since_id = self.__unpack_id(since_id)
            
        params = self.__generate_params(locals())
        return self.__api_request('GET', '/api/v1/mutes', params)

    @api_version("1.0.0", "2.6.0", __DICT_VERSION_ACCOUNT)
    def blocks(self, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetch a list of users blocked by the logged-in user.

        Returns a list of `user dicts`_.
        """
        if max_id != None:
            max_id = self.__unpack_id(max_id)
        
        if min_id != None:
            min_id = self.__unpack_id(min_id)
        
        if since_id != None:
            since_id = self.__unpack_id(since_id)
            
        params = self.__generate_params(locals())
        return self.__api_request('GET', '/api/v1/blocks', params)

    ###
    # Reading data: Reports
    ###
    @api_version("1.1.0", "1.1.0", __DICT_VERSION_REPORT)
    def reports(self):
        """
        Fetch a list of reports made by the logged-in user.

        Returns a list of `report dicts`_.
        
        Warning: This method has now finally been removed, and will not 
        work on mastodon versions 2.5.0 and above.
        """
        return self.__api_request('GET', '/api/v1/reports')

    ###
    # Reading data: Favourites
    ###
    @api_version("1.0.0", "2.6.0", __DICT_VERSION_STATUS)
    def favourites(self, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetch the logged-in user's favourited statuses.

        Returns a list of `toot dicts`_.
        """
        if max_id != None:
            max_id = self.__unpack_id(max_id)
        
        if min_id != None:
            min_id = self.__unpack_id(min_id)        
        
        if since_id != None:
            since_id = self.__unpack_id(since_id)
            
        params = self.__generate_params(locals())
        return self.__api_request('GET', '/api/v1/favourites', params)

    ###
    # Reading data: Follow requests
    ###
    @api_version("1.0.0", "2.6.0", __DICT_VERSION_ACCOUNT)
    def follow_requests(self, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetch the logged-in user's incoming follow requests.

        Returns a list of `user dicts`_.
        """
        if max_id != None:
            max_id = self.__unpack_id(max_id)
        
        if min_id != None:
            min_id = self.__unpack_id(min_id)        
        
        if since_id != None:
            since_id = self.__unpack_id(since_id)
            
        params = self.__generate_params(locals())
        return self.__api_request('GET', '/api/v1/follow_requests', params)

    ###
    # Reading data: Domain blocks
    ###
    @api_version("1.4.0", "2.6.0", "1.4.0")
    def domain_blocks(self, max_id=None, min_id=None, since_id=None, limit=None):
        """
        Fetch the logged-in user's blocked domains.

        Returns a list of blocked domain URLs (as strings, without protocol specifier).
        """
        if max_id != None:
            max_id = self.__unpack_id(max_id)
        
        if min_id != None:
            min_id = self.__unpack_id(min_id)        
        
        if since_id != None:
            since_id = self.__unpack_id(since_id)
            
        params = self.__generate_params(locals())
        return self.__api_request('GET', '/api/v1/domain_blocks', params)

    ###
    # Reading data: Emoji
    ###
    @api_version("2.1.0", "2.1.0", __DICT_VERSION_EMOJI)
    def custom_emojis(self):
        """
        Fetch the list of custom emoji the instance has installed.

        Does not require authentication.

        Returns a list of `emoji dicts`_.
        
        """
        return self.__api_request('GET', '/api/v1/custom_emojis')

    ###
    # Reading data: Apps
    ###
    @api_version("2.0.0", "2.7.2", __DICT_VERSION_APPLICATION)
    def app_verify_credentials(self):
        """
        Fetch information about the current application.

        Returns an `application dict`_.
        
        """
        return self.__api_request('GET', '/api/v1/apps/verify_credentials')

    ###
    # Reading data: Webpush subscriptions
    ###
    @api_version("2.4.0", "2.4.0", __DICT_VERSION_PUSH)
    def push_subscription(self):
        """
        Fetch the current push subscription the logged-in user has for this app.

        Returns a `push subscription dict`_.
        
        """
        return self.__api_request('GET', '/api/v1/push/subscription')

    ###
    # Writing data: Statuses
    ###
    @api_version("1.0.0", "2.7.0", __DICT_VERSION_STATUS)
    def status_post(self, status, in_reply_to_id=None, media_ids=None,
                    sensitive=False, visibility=None, spoiler_text=None,
                    language=None, idempotency_key=None, content_type=None,
                    scheduled_at=None):
        """
        Post a status. Can optionally be in reply to another status and contain
        media.
        
        `media_ids` should be a list. (If it's not, the function will turn it
        into one.) It can contain up to four pieces of media (uploaded via 
        `media_post()`_). `media_ids` can also be the `media dicts`_ returned 
        by `media_post()`_ - they are unpacked automatically.

        The `sensitive` boolean decides whether or not media attached to the post
        should be marked as sensitive, which hides it by default on the Mastodon
        web front-end.

        The visibility parameter is a string value and matches the visibility
        option on the /api/v1/status POST API endpoint. It accepts any of:
        'direct' - post will be visible only to mentioned users
        'private' - post will be visible only to followers
        'unlisted' - post will be public but not appear on the public timeline
        'public' - post will be public

        If not passed in, visibility defaults to match the current account's
        default-privacy setting (starting with Mastodon version 1.6) or its
        locked setting - private if the account is locked, public otherwise
        (for Mastodon versions lower than 1.6).

        The `spoiler_text` parameter is a string to be shown as a warning before
        the text of the status.  If no text is passed in, no warning will be
        displayed.

        Specify `language` to override automatic language detection. The parameter
        accepts all valid ISO 639-2 language codes.

        You can set `idempotency_key` to a value to uniquely identify an attempt
        at posting a status. Even if you call this function more than once,
        if you call it with the same `idempotency_key`, only one status will
        be created.

        Pass a datetime as `scheduled_at` to schedule the toot for a specific time
        (the time must be at least 5 minutes into the future). If this is passed,
        status_post returns a `scheduled toot dict`_ instead.

        Specify `content_type` to set the content type of your post on Pleroma.
        It accepts 'text/plain' (default), 'text/markdown', and 'text/html'.
        This parameter is not supported on Mastodon servers, but will be
        safely ignored if set.

        Returns a `toot dict`_ with the new status.
        """
        if in_reply_to_id != None:
            in_reply_to_id = self.__unpack_id(in_reply_to_id)
        
        if scheduled_at != None:
            scheduled_at = self.__consistent_isoformat_utc(scheduled_at)
        
        params_initial = locals()

        # Validate visibility parameter
        valid_visibilities = ['private', 'public', 'unlisted', 'direct']
        if params_initial['visibility'] == None:
            del params_initial['visibility']
        else:
            params_initial['visibility'] = params_initial['visibility'].lower()
            if params_initial['visibility'] not in valid_visibilities:
                raise ValueError('Invalid visibility value! Acceptable '
                                'values are %s' % valid_visibilities)

        if params_initial['language'] == None:
            del params_initial['language']

        if params_initial['sensitive'] is False:
            del [params_initial['sensitive']]

        headers = {}
        if idempotency_key != None:
            headers['Idempotency-Key'] = idempotency_key
            
        if media_ids is not None:
            try:
                media_ids_proper = []
                if not isinstance(media_ids, (list, tuple)):
                    media_ids = [media_ids]
                for media_id in media_ids:
                    if isinstance(media_id, dict):
                        media_ids_proper.append(media_id["id"])
                    else:
                        media_ids_proper.append(media_id)
            except Exception as e:
                raise MastodonIllegalArgumentError("Invalid media "
                                                   "dict: %s" % e)

            params_initial["media_ids"] = media_ids_proper

        if params_initial['content_type'] == None:
            del params_initial['content_type']

        params = self.__generate_params(params_initial, ['idempotency_key'])
        return self.__api_request('POST', '/api/v1/statuses', params, headers = headers)

    @api_version("1.0.0", "2.7.0", __DICT_VERSION_STATUS)
    def toot(self, status):
        """
        Synonym for `status_post()`_ that only takes the status text as input.

        Usage in production code is not recommended.

        Returns a `toot dict`_ with the new status.
        """
        return self.status_post(status)

    @api_version("1.0.0", "2.7.0", __DICT_VERSION_STATUS)
    def status_reply(self, to_status, status, media_ids=None, sensitive=False, visibility=None, 
                     spoiler_text=None, language=None, idempotency_key=None, content_type=None,
                     scheduled_at=None, untag=False):
        """
        Helper function - acts like status_post, but prepends the name of all
        the users that are being replied to to the status text and retains
        CW and visibility if not explicitly overridden.
        
        Set `untag` to True if you want the reply to only go to the user you
        are replying to, removing every other mentioned user from the
        conversation.
        """
        user_id = self.__get_logged_in_id()
        
        # Determine users to mention
        mentioned_accounts = collections.OrderedDict()
        mentioned_accounts[to_status.account.id] = to_status.account.acct
        
        if not untag:
            for account in to_status.mentions:
                if account.id != user_id and not account.id in mentioned_accounts.keys():
                    mentioned_accounts[account.id] = account.acct
                
        # Join into one piece of text. The space is added inside because of self-replies.
        status = "".join(map(lambda x: "@" + x + " ", mentioned_accounts.values())) + status
            
        # Retain visibility / cw
        if visibility == None and 'visibility' in to_status:
            visibility = to_status.visibility
        if spoiler_text == None and 'spoiler_text' in to_status:
            spoiler_text = to_status.spoiler_text
            
        return self.status_post(status, in_reply_to_id = to_status.id, media_ids = media_ids, sensitive = sensitive, 
                         visibility = visibility, spoiler_text = spoiler_text, language = language,
                         idempotency_key = idempotency_key, content_type = content_type, 
                         scheduled_at = scheduled_at)
        
    @api_version("1.0.0", "1.0.0", "1.0.0")
    def status_delete(self, id):
        """
        Delete a status
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}'.format(str(id))
        self.__api_request('DELETE', url)

    @api_version("1.0.0", "2.0.0", __DICT_VERSION_STATUS)
    def status_reblog(self, id):
        """
        Reblog a status.

        Returns a `toot dict`_ with a new status that wraps around the reblogged one.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}/reblog'.format(str(id))
        return self.__api_request('POST', url)

    @api_version("1.0.0", "2.0.0", __DICT_VERSION_STATUS)
    def status_unreblog(self, id):
        """
        Un-reblog a status.

        Returns a `toot dict`_ with the status that used to be reblogged.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}/unreblog'.format(str(id))
        return self.__api_request('POST', url)

    @api_version("1.0.0", "2.0.0", __DICT_VERSION_STATUS)
    def status_favourite(self, id):
        """
        Favourite a status.

        Returns a `toot dict`_ with the favourited status.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}/favourite'.format(str(id))
        return self.__api_request('POST', url)

    @api_version("1.0.0", "2.0.0", __DICT_VERSION_STATUS)
    def status_unfavourite(self, id):
        """
        Un-favourite a status.

        Returns a `toot dict`_ with the un-favourited status.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}/unfavourite'.format(str(id))
        return self.__api_request('POST', url)
    
    @api_version("1.4.0", "2.0.0", __DICT_VERSION_STATUS)
    def status_mute(self, id):
        """
        Mute notifications for a status.

        Returns a `toot dict`_ with the now muted status
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}/mute'.format(str(id))
        return self.__api_request('POST', url)

    @api_version("1.4.0", "2.0.0", __DICT_VERSION_STATUS)
    def status_unmute(self, id):
        """
        Unmute notifications for a status.

        Returns a `toot dict`_ with the status that used to be muted.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}/unmute'.format(str(id))
        return self.__api_request('POST', url)

    @api_version("2.1.0", "2.1.0", __DICT_VERSION_STATUS)
    def status_pin(self, id):
        """
        Pin a status for the logged-in user.

        Returns a `toot dict`_ with the now pinned status
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}/pin'.format(str(id))
        return self.__api_request('POST', url)

    @api_version("2.1.0", "2.1.0", __DICT_VERSION_STATUS)
    def status_unpin(self, id):
        """
        Unpin a pinned status for the logged-in user.

        Returns a `toot dict`_ with the status that used to be pinned.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/statuses/{0}/unpin'.format(str(id))
        return self.__api_request('POST', url)

    ###
    # Writing data: Scheduled statuses
    ###
    @api_version("2.7.0", "2.7.0", __DICT_VERSION_SCHEDULED_STATUS)
    def scheduled_status_update(self, id, scheduled_at):
        """
        Update the scheduled time of a scheduled status.
        
        New time must be at least 5 minutes into the future.
        
        Returns a `scheduled toot dict`_
        """
        scheduled_at = self.__consistent_isoformat_utc(scheduled_at)
        id = self.__unpack_id(id)
        params = self.__generate_params(locals(), ['id'])
        url = '/api/v1/scheduled_statuses/{0}'.format(str(id))
        return self.__api_request('PUT', url, params)
    
    @api_version("2.7.0", "2.7.0", "2.7.0")
    def scheduled_status_delete(self, id):
        """
        Deletes a scheduled status.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/scheduled_statuses/{0}'.format(str(id))
        self.__api_request('DELETE', url)
    
    ###
    # Writing data: Notifications
    ###
    @api_version("1.0.0", "1.0.0", "1.0.0")
    def notifications_clear(self):
        """
        Clear out a users notifications
        """
        self.__api_request('POST', '/api/v1/notifications/clear')


    @api_version("1.3.0", "1.3.0", "1.3.0")
    def notifications_dismiss(self, id):
        """
        Deletes a single notification
        """
        id = self.__unpack_id(id)
        params = self.__generate_params(locals())
        self.__api_request('POST', '/api/v1/notifications/dismiss', params)


    ###
    # Writing data: Conversations
    ###
    @api_version("2.6.0", "2.6.0", __DICT_VERSION_CONVERSATION)
    def conversations_read(self, id):
        """
        Marks a single conversation as read.
        
        Returns the updated `conversation dict`_.
        
        WARNING: This method is currently not documented in the official API and
        might therefore be unstable.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/conversations/{0}/read'.format(str(id))
        return self.__api_request('POST', url)

    ###
    # Writing data: Accounts
    ###
    @api_version("1.0.0", "2.4.3", __DICT_VERSION_RELATIONSHIP)
    def account_follow(self, id, reblogs=True):
        """
        Follow a user.

        Set `reblogs` to False to hide boosts by the followed user.

        Returns a `relationship dict`_ containing the updated relationship to the user.
        """
        id = self.__unpack_id(id)
        params = self.__generate_params(locals())
        
        if params["reblogs"] == None:
            del params["reblogs"]
            
        url = '/api/v1/accounts/{0}/follow'.format(str(id))
        return self.__api_request('POST', url, params)

    @api_version("1.0.0", "2.1.0", __DICT_VERSION_ACCOUNT)
    def follows(self, uri):
        """
        Follow a remote user by uri (username@domain).

        Returns a `user dict`_.
        """
        params = self.__generate_params(locals())
        return self.__api_request('POST', '/api/v1/follows', params)

    @api_version("1.0.0", "1.4.0", __DICT_VERSION_RELATIONSHIP)
    def account_unfollow(self, id):
        """
        Unfollow a user.

        Returns a `relationship dict`_ containing the updated relationship to the user.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/accounts/{0}/unfollow'.format(str(id))
        return self.__api_request('POST', url)

    @api_version("1.0.0", "1.4.0", __DICT_VERSION_RELATIONSHIP)
    def account_block(self, id):
        """
        Block a user.

        Returns a `relationship dict`_ containing the updated relationship to the user.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/accounts/{0}/block'.format(str(id))
        return self.__api_request('POST', url)

    @api_version("1.0.0", "1.4.0", __DICT_VERSION_RELATIONSHIP)
    def account_unblock(self, id):
        """
        Unblock a user.

        Returns a `relationship dict`_ containing the updated relationship to the user.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/accounts/{0}/unblock'.format(str(id))
        return self.__api_request('POST', url)

    @api_version("1.1.0", "2.4.3", __DICT_VERSION_RELATIONSHIP)
    def account_mute(self, id, notifications=True):
        """
        Mute a user.

        Set `notifications` to False to receive notifications even though the user is
        muted from timelines.

        Returns a `relationship dict`_ containing the updated relationship to the user.
        """
        id = self.__unpack_id(id)
        params = self.__generate_params(locals(), ['id'])
        url = '/api/v1/accounts/{0}/mute'.format(str(id))
        return self.__api_request('POST', url, params)

    @api_version("1.1.0", "1.4.0", __DICT_VERSION_RELATIONSHIP)
    def account_unmute(self, id):
        """
        Unmute a user.

        Returns a `relationship dict`_ containing the updated relationship to the user.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/accounts/{0}/unmute'.format(str(id))
        return self.__api_request('POST', url)

    @api_version("1.1.1", "2.4.0", __DICT_VERSION_ACCOUNT)
    def account_update_credentials(self, display_name=None, note=None,
                                   avatar=None, avatar_mime_type=None,
                                   header=None, header_mime_type=None, 
                                   locked=None, fields=None):
        """
        Update the profile for the currently logged-in user.

        'note' is the user's bio.

        'avatar' and 'header' are images. As with media uploads, it is possible to either
        pass image data and a mime type, or a filename of an image file, for either.
        
        'locked' specifies whether the user needs to manually approve follow requests.
        
        'fields' can be a list of up to four name-value pairs (specified as tuples) to 
        appear as semi-structured information in the users profile.
        
        Returns the updated `user dict` of the logged-in user.
        """
        params_initial = collections.OrderedDict(locals())
        
        # Load avatar, if specified
        if not avatar is None:
            if avatar_mime_type is None and (isinstance(avatar, str) and os.path.isfile(avatar)):
                avatar_mime_type = guess_type(avatar)
                avatar = open(avatar, 'rb')

            if avatar_mime_type is None:
                raise MastodonIllegalArgumentError('Could not determine mime type or data passed directly without mime type.')
        
        # Load header, if specified
        if not header is None:
            if header_mime_type is None and (isinstance(avatar, str) and os.path.isfile(header)):
                header_mime_type = guess_type(header)
                header = open(header, 'rb')

            if header_mime_type is None:
                raise MastodonIllegalArgumentError('Could not determine mime type or data passed directly without mime type.')
        
        # Convert fields
        if fields != None:
            if len(fields) > 4:
                raise MastodonIllegalArgumentError('A maximum of four fields are allowed.')
            
            fields_attributes = []
            for idx, (field_name, field_value) in enumerate(fields):
                params_initial['fields_attributes[' + str(idx) + '][name]'] = field_name
                params_initial['fields_attributes[' + str(idx) + '][value]'] = field_value
            
        # Clean up params
        for param in ["avatar", "avatar_mime_type", "header", "header_mime_type", "fields"]:
            if param in params_initial:
                del params_initial[param]
        
        # Create file info
        files = {}
        if not avatar is None:
            avatar_file_name = "mastodonpyupload_" + mimetypes.guess_extension(avatar_mime_type)
            files["avatar"] = (avatar_file_name, avatar, avatar_mime_type)
        if not header is None:
            header_file_name = "mastodonpyupload_" + mimetypes.guess_extension(header_mime_type)
            files["header"] = (header_file_name, header, header_mime_type)
        
        params = self.__generate_params(params_initial)
        return self.__api_request('PATCH', '/api/v1/accounts/update_credentials', params, files=files)


    @api_version("2.5.0", "2.5.0", __DICT_VERSION_RELATIONSHIP)
    def account_pin(self, id):
        """
        Pin / endorse a user.
        
        Returns a `relationship dict`_ containing the updated relationship to the user.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/accounts/{0}/pin'.format(str(id))
        return self.__api_request('POST', url)

    @api_version("2.5.0", "2.5.0", __DICT_VERSION_RELATIONSHIP)
    def account_unpin(self, id):
        """
        Unpin / un-endorse a user.

        Returns a `relationship dict`_ containing the updated relationship to the user.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/accounts/{0}/unpin'.format(str(id))
        return self.__api_request('POST', url)

    ###
    # Writing data: Keyword filters
    ###
    @api_version("2.4.3", "2.4.3", __DICT_VERSION_FILTER)
    def filter_create(self, phrase, context, irreversible = False, whole_word = True, expires_in = None):
        """
        Creates a new keyword filter. `phrase` is the phrase that should be
        filtered out, `context` specifies from where to filter the keywords.
        Valid contexts are 'home', 'notifications', 'public' and 'thread'.
        
        Set `irreversible` to True if you want the filter to just delete statuses
        server side. This works only for the 'home' and 'notifications' contexts.
        
        Set `whole_word` to False if you want to allow filter matches to
        start or end within a word, not only at word boundaries.
        
        Set `expires_in` to specify for how many seconds the filter should be
        kept around.
        
        Returns the `filter dict`_ of the newly created filter. 
        """
        params = self.__generate_params(locals())
        
        for context_val in context:
            if not context_val in ['home', 'notifications', 'public', 'thread']:
                raise MastodonIllegalArgumentError('Invalid filter context.')
        
        return self.__api_request('POST', '/api/v1/filters', params)
        
    @api_version("2.4.3", "2.4.3", __DICT_VERSION_FILTER)
    def filter_update(self, id, phrase = None, context = None, irreversible = None, whole_word = None, expires_in = None):
        """
        Updates the filter with the given `id`. Parameters are the same
        as in `filter_create()`.
        
        Returns the `filter dict`_ of the updated filter. 
        """
        id = self.__unpack_id(id)
        params = self.__generate_params(locals(), ['id'])
        url = '/api/v1/filters/{0}'.format(str(id))
        return self.__api_request('PUT', url, params)
    
    @api_version("2.4.3", "2.4.3", "2.4.3")
    def filter_delete(self, id):
        """
        Deletes the filter with the given `id`.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/filters/{0}'.format(str(id))
        self.__api_request('DELETE', url)
        
    ###
    # Writing data: Follow suggestions
    ###
    @api_version("2.4.3", "2.4.3", __DICT_VERSION_ACCOUNT)
    def suggestion_delete(self, account_id):
        """
        Remove the user with the given `account_id` from the follow suggestions.
        """
        account_id = self.__unpack_id(account_id)
        url = '/api/v1/suggestions/{0}'.format(str(account_id))
        self.__api_request('DELETE', url)

    ###
    # Writing data: Lists
    ###
    @api_version("2.1.0", "2.1.0", __DICT_VERSION_LIST)
    def list_create(self, title):
        """
        Create a new list with the given `title`.
        
        Returns the `list dict`_ of the created list.
        """
        params = self.__generate_params(locals())
        return self.__api_request('POST', '/api/v1/lists', params)
    
    @api_version("2.1.0", "2.1.0", __DICT_VERSION_LIST)
    def list_update(self, id, title):
        """
        Update info about a list, where "info" is really the lists `title`.
        
        Returns the `list dict`_ of the modified list.
        """
        id = self.__unpack_id(id)
        params = self.__generate_params(locals(), ['id'])
        return self.__api_request('PUT', '/api/v1/lists/{0}'.format(id), params)
    
    @api_version("2.1.0", "2.1.0", "2.1.0")
    def list_delete(self, id):
        """
        Delete a list.
        """
        id = self.__unpack_id(id)
        self.__api_request('DELETE', '/api/v1/lists/{0}'.format(id))
    
    @api_version("2.1.0", "2.1.0", "2.1.0")
    def list_accounts_add(self, id, account_ids):
        """
        Add the account(s) given in `account_ids` to the list.
        """
        id = self.__unpack_id(id)
        
        if not isinstance(account_ids, list):
            account_ids = [account_ids]
        account_ids = list(map(lambda x: self.__unpack_id(x), account_ids))
        
        params = self.__generate_params(locals(), ['id'])        
        self.__api_request('POST', '/api/v1/lists/{0}/accounts'.format(id), params)
        
    @api_version("2.1.0", "2.1.0", "2.1.0")
    def list_accounts_delete(self, id, account_ids):
        """
        Remove the account(s) given in `account_ids` from the list.
        """
        id = self.__unpack_id(id)
        
        if not isinstance(account_ids, list):
            account_ids = [account_ids]
        account_ids = list(map(lambda x: self.__unpack_id(x), account_ids))
        
        params = self.__generate_params(locals(), ['id'])        
        self.__api_request('DELETE', '/api/v1/lists/{0}/accounts'.format(id), params)
        
    ###
    # Writing data: Reports
    ###
    @api_version("1.1.0", "2.5.0", __DICT_VERSION_REPORT)
    def report(self, account_id, status_ids = None, comment = None, forward = False):
        """
        Report statuses to the instances administrators.

        Accepts a list of toot IDs associated with the report, and a comment.
        
        Set forward to True to forward a report of a remote user to that users
        instance as well as sending it to the instance local administrators.

        Returns a `report dict`_.
        """
        account_id = self.__unpack_id(account_id)
        
        if not status_ids is None:
            if not isinstance(status_ids, list):
                status_ids = [status_ids]
        status_ids = list(map(lambda x: self.__unpack_id(x), status_ids))
        
        params_initial = locals()        
        if forward == False:
            del params_initial['forward']
        
        params = self.__generate_params(params_initial)
        return self.__api_request('POST', '/api/v1/reports/', params)

    ###
    # Writing data: Follow requests
    ###
    @api_version("1.0.0", "1.0.0", "1.0.0")
    def follow_request_authorize(self, id):
        """
        Accept an incoming follow request.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/follow_requests/{0}/authorize'.format(str(id))
        self.__api_request('POST', url)

    @api_version("1.0.0", "1.0.0", "1.0.0")
    def follow_request_reject(self, id):
        """
        Reject an incoming follow request.
        """
        id = self.__unpack_id(id)
        url = '/api/v1/follow_requests/{0}/reject'.format(str(id))
        self.__api_request('POST', url)

    ###
    # Writing data: Media
    ###
    @api_version("1.0.0", "2.3.0", __DICT_VERSION_MEDIA)
    def media_post(self, media_file, mime_type=None, description=None, focus=None):
        """
        Post an image. `media_file` can either be image data or
        a file name. If image data is passed directly, the mime
        type has to be specified manually, otherwise, it is
        determined from the file name. `focus` should be a tuple
        of floats between -1 and 1, giving the x and y coordinates
        of the images focus point for cropping (with the origin being the images
        center).

        Throws a `MastodonIllegalArgumentError` if the mime type of the
        passed data or file can not be determined properly.

        Returns a `media dict`_. This contains the id that can be used in
        status_post to attach the media file to a toot.
        """
        if mime_type is None and (isinstance(media_file, str) and os.path.isfile(media_file)):
            mime_type = guess_type(media_file)
            media_file = open(media_file, 'rb')
        elif isinstance(media_file, str) and os.path.isfile(media_file):
            media_file = open(media_file, 'rb')

        if mime_type is None:
            raise MastodonIllegalArgumentError('Could not determine mime type'
                                               ' or data passed directly '
                                               'without mime type.')

        random_suffix = ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(10))
        file_name = "mastodonpyupload_" + str(time.time()) + "_" + str(random_suffix) + mimetypes.guess_extension(
            mime_type)

        if focus != None:
            focus = str(focus[0]) + "," + str(focus[1])
            
        media_file_description = (file_name, media_file, mime_type)
        return self.__api_request('POST', '/api/v1/media',
                                  files={'file': media_file_description},
                                  params={'description': description, 'focus': focus})
    
    @api_version("2.3.0", "2.3.0", __DICT_VERSION_MEDIA)
    def media_update(self, id, description=None, focus=None):
        """
        Update the metadata of the media file with the given `id`. `description` and 
        `focus` are as in `media_post()`_ .
        
        Returns the updated `media dict`_.
        """
        id = self.__unpack_id(id)

        if focus != None:
            focus = str(focus[0]) + "," + str(focus[1])
            
        params = self.__generate_params(locals(), ['id'])  
        return self.__api_request('PUT', '/api/v1/media/{0}'.format(str(id)), params)
    
    ###
    # Writing data: Domain blocks
    ###
    @api_version("1.4.0", "1.4.0", "1.4.0")
    def domain_block(self, domain=None):
        """
        Add a block for all statuses originating from the specified domain for the logged-in user.
        """
        params = self.__generate_params(locals())
        self.__api_request('POST', '/api/v1/domain_blocks', params)

    @api_version("1.4.0", "1.4.0", "1.4.0")
    def domain_unblock(self, domain=None):
        """
        Remove a domain block for the logged-in user.
        """
        params = self.__generate_params(locals())
        self.__api_request('DELETE', '/api/v1/domain_blocks', params)

    ###
    # Writing data: Push subscriptions
    ###
    @api_version("2.4.0", "2.4.0", __DICT_VERSION_PUSH)
    def push_subscription_set(self, endpoint, encrypt_params, follow_events=None, 
                              favourite_events=None, reblog_events=None, 
                              mention_events=None):
        """
        Sets up or modifies the push subscription the logged-in user has for this app.
        
        `endpoint` is the endpoint URL mastodon should call for pushes. Note that mastodon
        requires https for this URL. `encrypt_params` is a dict with key parameters that allow
        the server to encrypt data for you: A public key `pubkey` and a shared secret `auth`.
        You can generate this as well as the corresponding private key using the 
        `push_subscription_generate_keys()`_ function.
        
        The rest of the parameters controls what kind of events you wish to subscribe to.
        
        Returns a `push subscription dict`_.
        """
        endpoint = Mastodon.__protocolize(endpoint)
        
        push_pubkey_b64 = base64.b64encode(encrypt_params['pubkey'])
        push_auth_b64 = base64.b64encode(encrypt_params['auth'])
        
        params = {
            'subscription[endpoint]': endpoint,
            'subscription[keys][p256dh]': push_pubkey_b64,
            'subscription[keys][auth]': push_auth_b64
        }
        
        if follow_events != None:
            params['data[alerts][follow]'] = follow_events
        
        if favourite_events != None:
            params['data[alerts][favourite]'] = favourite_events
            
        if reblog_events != None:
            params['data[alerts][reblog]'] = reblog_events
            
        if mention_events != None:
            params['data[alerts][mention]'] = mention_events
            
        return self.__api_request('POST', '/api/v1/push/subscription', params)
    
    @api_version("2.4.0", "2.4.0", __DICT_VERSION_PUSH)
    def push_subscription_update(self, follow_events=None, 
                              favourite_events=None, reblog_events=None, 
                              mention_events=None):
        """
        Modifies what kind of events the app wishes to subscribe to.
        
        Returns the updated `push subscription dict`_.
        """
        params = {}
        
        if follow_events != None:
            params['data[alerts][follow]'] = follow_events
        
        if favourite_events != None:
            params['data[alerts][favourite]'] = favourite_events
            
        if reblog_events != None:
            params['data[alerts][reblog]'] = reblog_events
            
        if mention_events != None:
            params['data[alerts][mention]'] = mention_events
            
        return self.__api_request('PUT', '/api/v1/push/subscription', params)
    
    @api_version("2.4.0", "2.4.0", "2.4.0")
    def push_subscription_delete(self):
        """
        Remove the current push subscription the logged-in user has for this app.
        """
        self.__api_request('DELETE', '/api/v1/push/subscription')
     
     
    ###
    # Push subscription crypto utilities
    ###     
    def push_subscription_generate_keys(self):
        """
        Generates a private key, public key and shared secret for use in webpush subscriptions.
        
        Returns two dicts: One with the private key and shared secret and another with the 
        public key and shared secret.
        """
        push_key_pair = ec.generate_private_key(ec.SECP256R1(), default_backend())
        push_key_priv = push_key_pair.private_numbers().private_value
        push_key_pub = push_key_pair.public_key().public_numbers().encode_point() 
        push_shared_secret = os.urandom(16)
        
        priv_dict = {
            'privkey': push_key_priv,
            'auth': push_shared_secret
        }
        
        pub_dict = {
            'pubkey': push_key_pub,
            'auth': push_shared_secret
        }
        
        return priv_dict, pub_dict
    
    def push_subscription_decrypt_push(self, data, decrypt_params, encryption_header, crypto_key_header):
        """
        Decrypts `data` received in a webpush request. Requires the private key dict 
        from `push_subscription_generate_keys()`_ (`decrypt_params`) as well as the 
        Encryption and server Crypto-Key headers from the received webpush
        
        Returns the decoded webpush as a `push notification dict`_.
        """
        salt = self.__decode_webpush_b64(encryption_header.split("salt=")[1].strip())
        dhparams = self.__decode_webpush_b64(crypto_key_header.split("dh=")[1].split(";")[0].strip())
        p256ecdsa = self.__decode_webpush_b64(crypto_key_header.split("p256ecdsa=")[1].strip())
        dec_key = ec.derive_private_key(decrypt_params['privkey'], ec.SECP256R1(), default_backend())
        decrypted = http_ece.decrypt(
            data,
            salt = salt,
            key = p256ecdsa,
            private_key = dec_key, 
            dh = dhparams, 
            auth_secret=decrypt_params['auth'],
            keylabel = "P-256",
            version = "aesgcm"
        )
        
        return json.loads(decrypted.decode('utf-8'), object_hook = Mastodon.__json_hooks)
    
    ###
    # Pagination
    ###
    def fetch_next(self, previous_page):
        """
        Fetches the next page of results of a paginated request. Pass in the
        previous page in its entirety, or the pagination information dict
        returned as a part of that pages last status ('_pagination_next').

        Returns the next page or None if no further data is available.
        """
        if isinstance(previous_page, list) and len(previous_page) != 0:
            if hasattr(previous_page[-1], '_pagination_next'):
                params = copy.deepcopy(previous_page[-1]._pagination_next)
            else:
                return None
        else:
            params = copy.deepcopy(previous_page)

        method = params['_pagination_method']
        del params['_pagination_method']

        endpoint = params['_pagination_endpoint']
        del params['_pagination_endpoint']

        return self.__api_request(method, endpoint, params)

    def fetch_previous(self, next_page):
        """
        Fetches the previous page of results of a paginated request. Pass in the
        previous page in its entirety, or the pagination information dict
        returned as a part of that pages first status ('_pagination_prev').

        Returns the previous page or None if no further data is available.
        """
        if isinstance(next_page, list) and len(next_page) != 0:
            if hasattr(next_page[0], '_pagination_prev'):
                params = copy.deepcopy(next_page[0]._pagination_prev)
            else:
                return None
        else:
            params = copy.deepcopy(next_page)

        method = params['_pagination_method']
        del params['_pagination_method']

        endpoint = params['_pagination_endpoint']
        del params['_pagination_endpoint']

        return self.__api_request(method, endpoint, params)

    def fetch_remaining(self, first_page):
        """
        Fetches all the remaining pages of a paginated request starting from a
        first page and returns the entire set of results (including the first page
        that was passed in) as a big list.

        Be careful, as this might generate a lot of requests, depending on what you are
        fetching, and might cause you to run into rate limits very quickly.
        """
        first_page = copy.deepcopy(first_page)

        all_pages = []
        current_page = first_page
        while current_page is not None and len(current_page) > 0:
            all_pages.extend(current_page)
            current_page = self.fetch_next(current_page)

        return all_pages

    ###
    # Streaming
    ###
    @api_version("1.1.0", "1.4.2", __DICT_VERSION_STATUS)    
    def stream_user(self, listener, run_async=False, timeout=__DEFAULT_STREAM_TIMEOUT, reconnect_async=False, reconnect_async_wait_sec=__DEFAULT_STREAM_RECONNECT_WAIT_SEC):
        """
        Streams events that are relevant to the authorized user, i.e. home
        timeline and notifications.
        """
        return self.__stream('/api/v1/streaming/user', listener, run_async=run_async, timeout=timeout, reconnect_async=reconnect_async, reconnect_async_wait_sec=reconnect_async_wait_sec)

    @api_version("1.1.0", "1.4.2", __DICT_VERSION_STATUS)
    def stream_public(self, listener, run_async=False, timeout=__DEFAULT_STREAM_TIMEOUT, reconnect_async=False, reconnect_async_wait_sec=__DEFAULT_STREAM_RECONNECT_WAIT_SEC):
        """
        Streams public events.
        """
        return self.__stream('/api/v1/streaming/public', listener, run_async=run_async, timeout=timeout, reconnect_async=reconnect_async, reconnect_async_wait_sec=reconnect_async_wait_sec)

    @api_version("1.1.0", "1.4.2", __DICT_VERSION_STATUS)
    def stream_local(self, listener, run_async=False, timeout=__DEFAULT_STREAM_TIMEOUT, reconnect_async=False, reconnect_async_wait_sec=__DEFAULT_STREAM_RECONNECT_WAIT_SEC):
        """
        Streams local public events.
        """
        return self.__stream('/api/v1/streaming/public/local', listener, run_async=run_async, timeout=timeout, reconnect_async=reconnect_async, reconnect_async_wait_sec=reconnect_async_wait_sec)

    @api_version("1.1.0", "1.4.2", __DICT_VERSION_STATUS)
    def stream_hashtag(self, tag, listener, run_async=False, timeout=__DEFAULT_STREAM_TIMEOUT, reconnect_async=False, reconnect_async_wait_sec=__DEFAULT_STREAM_RECONNECT_WAIT_SEC):
        """
        Stream for all public statuses for the hashtag 'tag' seen by the connected
        instance.
        """
        if tag.startswith("#"):
            raise MastodonIllegalArgumentError("Tag parameter should omit leading #")
        return self.__stream("/api/v1/streaming/hashtag?tag={}".format(tag), listener, run_async=run_async, timeout=timeout, reconnect_async=reconnect_async, reconnect_async_wait_sec=reconnect_async_wait_sec)

    @api_version("2.1.0", "2.1.0", __DICT_VERSION_STATUS)
    def stream_list(self, id, listener, run_async=False, timeout=__DEFAULT_STREAM_TIMEOUT, reconnect_async=False, reconnect_async_wait_sec=__DEFAULT_STREAM_RECONNECT_WAIT_SEC):
        """
        Stream events for the current user, restricted to accounts on the given
        list. 
        """
        id =  self.__unpack_id(id)
        return self.__stream("/api/v1/streaming/list?list={}".format(id), listener, run_async=run_async, timeout=timeout, reconnect_async=reconnect_async, reconnect_async_wait_sec=reconnect_async_wait_sec)
    
    @api_version("2.6.0", "2.6.0", __DICT_VERSION_STATUS)
    def stream_direct(self, listener, run_async=False, timeout=__DEFAULT_STREAM_TIMEOUT, reconnect_async=False, reconnect_async_wait_sec=__DEFAULT_STREAM_RECONNECT_WAIT_SEC):
        """
        Streams direct message events for the logged-in user, as conversation events.
        """
        return self.__stream('/api/v1/streaming/direct', listener, run_async=run_async, timeout=timeout, reconnect_async=reconnect_async, reconnect_async_wait_sec=reconnect_async_wait_sec)
    
    ###
    # Internal helpers, dragons probably
    ###
    def __datetime_to_epoch(self, date_time):
        """
        Converts a python datetime to unix epoch, accounting for
        time zones and such.

        Assumes UTC if timezone is not given.
        """
        date_time_utc = None
        if date_time.tzinfo is None:
            date_time_utc = date_time.replace(tzinfo=pytz.utc)
        else:
            date_time_utc = date_time.astimezone(pytz.utc)

        epoch_utc = datetime.datetime.utcfromtimestamp(0).replace(tzinfo=pytz.utc)

        return (date_time_utc - epoch_utc).total_seconds()

    def __get_logged_in_id(self):
        """
        Fetch the logged in users ID, with caching. ID is reset on calls to log_in.
        """
        if self.__logged_in_id == None:
            self.__logged_in_id = self.account_verify_credentials().id
        return self.__logged_in_id
            

    @staticmethod
    def __json_allow_dict_attrs(json_object):
        """
        Makes it possible to use attribute notation to access a dicts
        elements, while still allowing the dict to act as a dict.
        """
        if isinstance(json_object, dict):
            return AttribAccessDict(json_object)
        return json_object

    @staticmethod
    def __json_date_parse(json_object):
        """
        Parse dates in certain known json fields, if possible.
        """
        known_date_fields = ["created_at", "week", "day", "expires_at", "scheduled_at"]
        for k, v in json_object.items():
            if k in known_date_fields:
                if v != None:
                    try:
                        if isinstance(v, int):
                            json_object[k] = datetime.datetime.fromtimestamp(v, pytz.utc)
                        else:
                            json_object[k] = dateutil.parser.parse(v)
                    except:
                        raise MastodonAPIError('Encountered invalid date.')
        return json_object

    @staticmethod
    def __json_truefalse_parse(json_object):
        """
        Parse 'True' / 'False' strings in certain known fields
        """
        for key in ('follow', 'favourite', 'reblog', 'mention'):
            if (key in json_object and isinstance(json_object[key], six.text_type)):
                if json_object[key] == 'True':
                    json_object[key] = True
                if json_object[key] == 'False':
                    json_object[key] = False
        return json_object
    
    @staticmethod
    def __json_strnum_to_bignum(json_object):
        """
        Converts json string numerals to native python bignums.
        """
        for key in ('id', 'week', 'in_reply_to_id', 'in_reply_to_account_id', 'logins', 'registrations', 'statuses'):
            if (key in json_object and isinstance(json_object[key], six.text_type)):
                try:
                    json_object[key] = int(json_object[key])
                except ValueError:
                    pass

        return json_object
    
    @staticmethod
    def __json_hooks(json_object):
        """
        All the json hooks. Used in request parsing.
        """
        json_object = Mastodon.__json_strnum_to_bignum(json_object)        
        json_object = Mastodon.__json_date_parse(json_object)
        json_object = Mastodon.__json_truefalse_parse(json_object)
        json_object = Mastodon.__json_allow_dict_attrs(json_object)
        return json_object

    @staticmethod
    def __consistent_isoformat_utc(datetime_val):
        """
        Function that does what isoformat does but it actually does the same
        every time instead of randomly doing different things on some systems
        and also it represents that time as the equivalent UTC time.
        """
        isotime = datetime_val.astimezone(pytz.utc).strftime("%Y-%m-%dT%H:%M:%S%z")
        if isotime[-2] != ":":
            isotime = isotime[:-2] + ":" + isotime[-2:]
        return isotime

    def __api_request(self, method, endpoint, params={}, files={}, headers={}, access_token_override=None, do_ratelimiting=True):
        """
        Internal API request helper.
        """
        response = None
        remaining_wait = 0
        # "pace" mode ratelimiting: Assume constant rate of requests, sleep a little less long than it
        # would take to not hit the rate limit at that request rate.
        if do_ratelimiting and self.ratelimit_method == "pace":
            if self.ratelimit_remaining == 0:
                to_next = self.ratelimit_reset - time.time()
                if to_next > 0:
                    # As a precaution, never sleep longer than 5 minutes
                    to_next = min(to_next, 5 * 60)
                    time.sleep(to_next)
            else:
                time_waited = time.time() - self.ratelimit_lastcall
                time_wait = float(self.ratelimit_reset - time.time()) / float(self.ratelimit_remaining)
                remaining_wait = time_wait - time_waited

            if remaining_wait > 0:
                to_next = remaining_wait / self.ratelimit_pacefactor
                to_next = min(to_next, 5 * 60)
                time.sleep(to_next)

        # Generate request headers
        headers = copy.deepcopy(headers)
        if not self.access_token is None:
            headers['Authorization'] = 'Bearer ' + self.access_token
        if not access_token_override is None:
            headers['Authorization'] = 'Bearer ' + access_token_override

        if self.debug_requests:
            print('Mastodon: Request to endpoint "' + endpoint + '" using method "' + method + '".')
            print('Parameters: ' + str(params))
            print('Headers: ' + str(headers))
            print('Files: ' + str(files))

        # Make request
        request_complete = False
        while not request_complete:
            request_complete = True

            response_object = None
            try:
                kwargs = dict(headers=headers, files=files,
                              timeout=self.request_timeout)
                if method == 'GET':
                    kwargs['params'] = params
                else:
                    kwargs['data'] = params

                response_object = self.session.request(
                        method, self.api_base_url + endpoint, **kwargs)
            except Exception as e:
                raise MastodonNetworkError("Could not complete request: %s" % e)

            if response_object is None:
                raise MastodonIllegalArgumentError("Illegal request.")

            # Parse rate limiting headers
            if 'X-RateLimit-Remaining' in response_object.headers and do_ratelimiting:
                self.ratelimit_remaining = int(response_object.headers['X-RateLimit-Remaining'])
                self.ratelimit_limit = int(response_object.headers['X-RateLimit-Limit'])

                try:
                    ratelimit_reset_datetime = dateutil.parser.parse(response_object.headers['X-RateLimit-Reset'])
                    self.ratelimit_reset = self.__datetime_to_epoch(ratelimit_reset_datetime)

                    # Adjust server time to local clock
                    if 'Date' in response_object.headers:
                        server_time_datetime = dateutil.parser.parse(response_object.headers['Date'])
                        server_time = self.__datetime_to_epoch(server_time_datetime)
                        server_time_diff = time.time() - server_time
                        self.ratelimit_reset += server_time_diff
                        self.ratelimit_lastcall = time.time()
                except Exception as e:
                    raise MastodonRatelimitError("Rate limit time calculations failed: %s" % e)

            # Handle response
            if self.debug_requests:
                print('Mastodon: Response received with code ' + str(response_object.status_code) + '.')
                print('response headers: ' + str(response_object.headers))
                print('Response text content: ' + str(response_object.text))

            if not response_object.ok:
                try:
                    response = response_object.json(object_hook=self.__json_hooks)
                    if isinstance(response, dict) and 'error' in response:
                        error_msg = response['error']
                    elif isinstance(response, str):
                        error_msg = response
                    else:
                        error_msg = None
                except ValueError:
                    error_msg = None

                # Handle rate limiting
                if response_object.status_code == 429:
                    if self.ratelimit_method == 'throw' or not do_ratelimiting:
                        raise MastodonRatelimitError('Hit rate limit.')
                    elif self.ratelimit_method in ('wait', 'pace'):
                        to_next = self.ratelimit_reset - time.time()
                        if to_next > 0:
                            # As a precaution, never sleep longer than 5 minutes
                            to_next = min(to_next, 5 * 60)
                            time.sleep(to_next)
                            request_complete = False
                            continue

                if response_object.status_code == 404:
                    ex_type = MastodonNotFoundError
                    if not error_msg:
                        error_msg = 'Endpoint not found.'
                        # this is for compatibility with older versions
                        # which raised MastodonAPIError('Endpoint not found.')
                        # on any 404
                elif response_object.status_code == 401:
                    ex_type = MastodonUnauthorizedError
                elif response_object.status_code == 502:
                    ex_type = MastodonServerError
                else:
                    ex_type = MastodonAPIError

                raise ex_type(
                        'Mastodon API returned error',
                        response_object.status_code,
                        response_object.reason,
                        error_msg)

            try:
                response = response_object.json(object_hook=self.__json_hooks)
            except:
                raise MastodonAPIError(
                    "Could not parse response as JSON, response code was %s, "
                    "bad json content was '%s'" % (response_object.status_code,
                                                   response_object.content))

            # Parse link headers
            if isinstance(response, list) and \
                    'Link' in response_object.headers and \
                    response_object.headers['Link'] != "":
                tmp_urls = requests.utils.parse_header_links(
                    response_object.headers['Link'].rstrip('>').replace('>,<', ',<'))
                for url in tmp_urls:
                    if 'rel' not in url:
                        continue

                    if url['rel'] == 'next':
                        # Be paranoid and extract max_id specifically
                        next_url = url['url']
                        matchgroups = re.search(r"[?&]max_id=([^&]+)", next_url)

                        if matchgroups:
                            next_params = copy.deepcopy(params)
                            next_params['_pagination_method'] = method
                            next_params['_pagination_endpoint'] = endpoint
                            max_id = matchgroups.group(1)
                            if max_id.isdigit():
                                next_params['max_id'] = int(max_id)
                            else:
                                next_params['max_id'] = max_id
                            if "since_id" in next_params:
                                del next_params['since_id']
                            if "min_id" in next_params:
                                del next_params['min_id']
                            response[-1]._pagination_next = next_params

                    if url['rel'] == 'prev':
                        # Be paranoid and extract since_id or min_id specifically
                        prev_url = url['url']
                        
                        # Old and busted (pre-2.6.0): since_id pagination
                        matchgroups = re.search(r"[?&]since_id=([^&]+)", prev_url)
                        if matchgroups:
                            prev_params = copy.deepcopy(params)
                            prev_params['_pagination_method'] = method
                            prev_params['_pagination_endpoint'] = endpoint
                            since_id = matchgroups.group(1)
                            if since_id.isdigit():
                                prev_params['since_id'] = int(since_id)
                            else:
                                prev_params['since_id'] = since_id
                            if "max_id" in prev_params:
                                del prev_params['max_id']
                            response[0]._pagination_prev = prev_params
                            
                        # New and fantastico (post-2.6.0): min_id pagination
                        matchgroups = re.search(r"[?&]min_id=([^&]+)", prev_url)
                        if matchgroups:
                            prev_params = copy.deepcopy(params)
                            prev_params['_pagination_method'] = method
                            prev_params['_pagination_endpoint'] = endpoint
                            min_id = matchgroups.group(1)
                            if min_id.isdigit():
                                prev_params['min_id'] = int(min_id)
                            else:
                                prev_params['min_id'] = min_id
                            if "max_id" in prev_params:
                                del prev_params['max_id']
                            response[0]._pagination_prev = prev_params

        return response

    def __stream(self, endpoint, listener, params={}, run_async=False, timeout=__DEFAULT_STREAM_TIMEOUT, reconnect_async=False, reconnect_async_wait_sec=__DEFAULT_STREAM_RECONNECT_WAIT_SEC):
        """
        Internal streaming API helper.

        Returns a handle to the open connection that the user can close if they
        wish to terminate it.
        """

        # Check if we have to redirect
        instance = self.instance()
        if "streaming_api" in instance["urls"] and instance["urls"]["streaming_api"] != self.api_base_url:
            # This is probably a websockets URL, which is really for the browser, but requests can't handle it
            # So we do this below to turn it into an HTTPS or HTTP URL
            parse = urlparse(instance["urls"]["streaming_api"])
            if parse.scheme == 'wss':
                url = "https://" + parse.netloc
            elif parse.scheme == 'ws':
                url = "http://" + parse.netloc
            else:
                raise MastodonAPIError(
                        "Could not parse streaming api location returned from server: {}.".format(
                            instance["urls"]["streaming_api"]))
        else:
            url = self.api_base_url

        # The streaming server can't handle two slashes in a path, so remove trailing slashes
        if url[-1] == '/':
            url = url[:-1]
        
        # Connect function (called and then potentially passed to async handler)
        def connect_func():
            headers = {"Authorization": "Bearer " + self.access_token}
            connection = self.session.get(url + endpoint, headers = headers, data = params, stream = True,
                                  timeout=(self.request_timeout, timeout))

            if connection.status_code != 200:
                raise MastodonNetworkError("Could not connect to streaming server: %s" % connection.reason)
            return connection
        connection = None
        
        # Async stream handler
        class __stream_handle():
            def __init__(self, connection, connect_func, reconnect_async, reconnect_async_wait_sec):
                self.closed = False
                self.running = True
                self.connection = connection
                self.connect_func = connect_func
                self.reconnect_async = reconnect_async
                self.reconnect_async_wait_sec = reconnect_async_wait_sec
                self.reconnecting = False
                
            def close(self):
                self.closed = True
                self.connection.close()

            def is_alive(self):
                return self._thread.is_alive()

            def is_receiving(self):
                if self.closed or not self.running or self.reconnecting or not self.is_alive():
                    return False
                else:
                    return True

            def _threadproc(self):
                self._thread = threading.current_thread()
                
                # Run until closed or until error if not autoreconnecting
                while self.running:
                    if not self.connection is None:
                        with closing(self.connection) as r:
                            try:
                                listener.handle_stream(r)
                            except (AttributeError, MastodonMalformedEventError, MastodonNetworkError) as e:
                                if not (self.closed or self.reconnect_async):
                                    raise e
                                else:
                                    if self.closed:
                                        self.running = False

                    # Reconnect loop. Try immediately once, then with delays on error.
                    if (self.reconnect_async and not self.closed) or self.connection is None:
                        self.reconnecting = True
                        connect_success = False
                        while not connect_success:
                            connect_success = True
                            try:
                                self.connection = self.connect_func()
                                if self.connection.status_code != 200:
                                    time.sleep(self.reconnect_async_wait_sec)
                                    connect_success = False
                                    exception = MastodonNetworkError("Could not connect to server.")
                                    listener.on_abort(exception)
                            except:
                                time.sleep(self.reconnect_async_wait_sec)
                                connect_success = False
                        self.reconnecting = False
                    else:
                        self.running = False
                return 0

        if run_async:
            handle = __stream_handle(connection, connect_func, reconnect_async, reconnect_async_wait_sec)
            t = threading.Thread(args=(), target=handle._threadproc)
            t.daemon = True
            t.start()
            return handle
        else:
            # Blocking, never returns (can only leave via exception)
            connection = connect_func()            
            with closing(connection) as r:
                listener.handle_stream(r)

    def __generate_params(self, params, exclude=[]):
        """
        Internal named-parameters-to-dict helper.

        Note for developers: If called with locals() as params,
        as is the usual practice in this code, the __generate_params call
        (or at least the locals() call) should generally be the first thing
        in your function.
        """
        params = collections.OrderedDict(params)

        del params['self']
        param_keys = list(params.keys())
        for key in param_keys:
            if isinstance(params[key], bool) and params[key] == False:
                params[key] = '0'
            if isinstance(params[key], bool) and params[key] == True:
                params[key] = '1'
                
        for key in param_keys:
            if params[key] is None or key in exclude:
                del params[key]

        param_keys = list(params.keys())
        for key in param_keys:
            if isinstance(params[key], list):
                params[key + "[]"] = params[key]
                del params[key]
            
        return params
    
    def __unpack_id(self, id):
        """
        Internal object-to-id converter
        
        Checks if id is a dict that contains id and
        returns the id inside, otherwise just returns
        the id straight.
        """
        if isinstance(id, dict) and "id" in id:
            return id["id"]
        else:
            return id
    
    def __decode_webpush_b64(self, data):
        """
        Re-pads and decodes urlsafe base64.
        """
        missing_padding = len(data) % 4
        if missing_padding != 0:
            data += '=' * (4 - missing_padding)
        return base64.urlsafe_b64decode(data)
    
    def __get_token_expired(self):
        """Internal helper for oauth code"""
        return self._token_expired < datetime.datetime.now()

    def __set_token_expired(self, value):
        """Internal helper for oauth code"""
        self._token_expired = datetime.datetime.now() + datetime.timedelta(seconds=value)
        return

    def __get_refresh_token(self):
        """Internal helper for oauth code"""
        return self._refresh_token

    def __set_refresh_token(self, value):
        """Internal helper for oauth code"""
        self._refresh_token = value
        return
    
    @staticmethod
    def __protocolize(base_url):
        """Internal add-protocol-to-url helper"""
        if not base_url.startswith("http://") and not base_url.startswith("https://"):
            base_url = "https://" + base_url

        # Some API endpoints can't handle extra /'s in path requests
        base_url = base_url.rstrip("/")
        return base_url


##
# Exceptions
##
class MastodonError(Exception):
    """Base class for Mastodon.py exceptions"""

class MastodonVersionError(MastodonError):
    """Raised when a function is called that the version of Mastodon for which
       Mastodon.py was instantiated does not support"""

class MastodonIllegalArgumentError(ValueError, MastodonError):
    """Raised when an incorrect parameter is passed to a function"""
    pass


class MastodonIOError(IOError, MastodonError):
    """Base class for Mastodon.py I/O errors"""


class MastodonFileNotFoundError(MastodonIOError):
    """Raised when a file requested to be loaded can not be opened"""
    pass


class MastodonNetworkError(MastodonIOError):
    """Raised when network communication with the server fails"""
    pass

class MastodonReadTimeout(MastodonNetworkError):
    """Raised when a stream times out"""
    pass


class MastodonAPIError(MastodonError):
    """Raised when the mastodon API generates a response that cannot be handled"""
    pass

class MastodonServerError(MastodonError):
    """Raised if the Server is malconfigured, e.g. returns a 502 error code"""
    pass

class MastodonNotFoundError(MastodonAPIError):
    """Raised when the mastodon API returns a 404 Not Found error"""
    pass

class MastodonUnauthorizedError(MastodonAPIError):
    """Raised when the mastodon API returns a 401 Unauthorized error

       This happens when an OAuth token is invalid or has been revoked,
       or when trying to access an endpoint that can't be used without
       authentication without providing credentials."""
    pass


class MastodonRatelimitError(MastodonError):
    """Raised when rate limiting is set to manual mode and the rate limit is exceeded"""
    pass

class MastodonMalformedEventError(MastodonError):
    """Raised when the server-sent event stream is malformed"""
    pass

def guess_type(media_file):
    mime_type = None
    if magic:
        mime_type = magic.from_file(media_file, mime=True)
    else:
        mime_type = mimetypes.guess_type(media_file)[0]
    return mime_type