import foauth.providers
from foauth import OAuthDenied


class Twitter(foauth.providers.OAuth1):
    # General info about the provider
    provider_url = 'https://www.twitter.com/'
    docs_url = 'https://dev.twitter.com/docs'
    category = 'Social'

    # URLs to interact with the API
    request_token_url = 'https://api.twitter.com/oauth/request_token'
    authorize_url = 'https://api.twitter.com/oauth/authorize'
    access_token_url = 'https://api.twitter.com/oauth/access_token'
    api_domain = 'api.twitter.com'

    available_permissions = [
        (None, 'read your tweets'),
        ('write', 'read and send tweets'),
        ('dm', 'read and send tweets, including DMs'),
    ]
    permissions_widget = 'radio'

    # Twitter's permissions model is subtractive, rather than additive. foauth
    # is registered with maximum permissions, which then have to be limited on
    # each authorization call. This mapping converts between the additive model
    # used within foauth and the subtractive model used by Twitter.
    scope_map = {
        None: 'read',
        'write': 'write',
        'dm': None
    }

    def get_request_token_params(self, redirect_uri, scopes):
        params = super(Twitter, self).get_request_token_params(redirect_uri, scopes)

        # Convert to Twitter's permissions model
        scopes = map(lambda x: self.scope_map.get(x or None), scopes)
        if any(scopes):
            params['x_auth_access_type'] = scopes[0]

        return params

    def callback(self, data, *args, **kwargs):
        if 'denied' in data:
            raise OAuthDenied('Denied access to Twitter')

        return super(Twitter, self).callback(data, *args, **kwargs)

    def get_user_id(self, key):
        r = self.api(key, self.api_domain, u'/1.1/account/verify_credentials.json')
        return unicode(r.json()[u'id'])

@@ -495,19 +495,21 @@
 i_domain
+s
  = 
+%5B
 'api.twi
@@ -517,16 +517,110 @@
 ter.com'
+, 'stream.twitter.com',%0A                   'sitestream.twitter.com', 'userstream.twitter.com'%5D
 %0A%0A    av
@@ -1860,16 +1860,20 @@
 i_domain
+s%5B0%5D
 , u'/1.1

Support Twitter's streaming API (hopefully!)