def generate_authorize_url(self, redirect_uri='urn:ietf:wg:oauth:2.0:oob',
response_type='code', access_type='offline',
approval_prompt='auto', **kwargs):
"""Returns a URI to redirect to the provider.
Args:
redirect_uri: Either the string 'urn:ietf:wg:oauth:2.0:oob' for a
non-web-based application, or a URI that handles the
callback from the authorization server.
response_type: Either the string 'code' for server-side or native
application, or the string 'token' for client-side
application.
access_type: Either the string 'offline' to request a refresh token or
'online'.
approval_prompt: Either the string 'auto' to let the OAuth mechanism
determine if the approval page is needed or 'force'
if the approval prompt is desired in all cases.
If redirect_uri is 'urn:ietf:wg:oauth:2.0:oob' then pass in the
generated verification code to get_access_token,
otherwise pass in the query parameters received
at the callback uri to get_access_token.
If the response_type is 'token', no need to call
get_access_token as the API will return it within
the query parameters received at the callback:
oauth2_token.access_token = YOUR_ACCESS_TOKEN
"""
self.redirect_uri = redirect_uri
query = {
'response_type': response_type,
'client_id': self.client_id,
'redirect_uri': redirect_uri,
'scope': self.scope,
'approval_prompt': approval_prompt,
'access_type': access_type
}
query.update(kwargs)
parts = list(urllib.parse.urlparse(self.auth_uri))
query.update(dict(parse_qsl(parts[4]))) # 4 is the index of the query part
parts[4] = urllib.parse.urlencode(query)
return urllib.parse.urlunparse(parts)
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