# Path: twitter-winner/oauthlib/oauth2/rfc6749/errors.py
# def raise_from_error(error, params=None):
#     import inspect
#     import sys
#     kwargs = {
#         'description': params.get('error_description'),
#         'uri': params.get('error_uri'),
#         'state': params.get('state')
#     }
#     for _, cls in  inspect.getmembers(sys.modules[__name__], inspect.isclass):
#         if cls.error == error:
#             raise cls(**kwargs)
# 
# class MissingTokenError(OAuth2Error):
#     error = 'missing_token'
# 
# class MissingTokenTypeError(OAuth2Error):
#     error = 'missing_token_type'
# 
# Path: twitter-winner/oauthlib/oauth2/rfc6749/errors.py
# class MismatchingStateError(OAuth2Error):
#     error = 'mismatching_state'
#     description = 'CSRF Warning! State not equal in request and response.'
# 
# class MissingCodeError(OAuth2Error):
#     error = 'missing_code'
# 
# Path: twitter-winner/oauthlib/oauth2/rfc6749/errors.py
# class InsecureTransportError(OAuth2Error):
#     error = 'insecure_transport'
#     description = 'OAuth 2 MUST utilize https.'
# 
# Path: twitter-winner/oauthlib/oauth2/rfc6749/utils.py
# def list_to_scope(scope):
#     """Convert a list of scopes to a space separated string."""
#     if isinstance(scope, unicode_type) or scope is None:
#         return scope
#     elif isinstance(scope, list):
#         return " ".join([unicode_type(s) for s in scope])
#     else:
#         raise ValueError("Invalid scope, must be string or list.")
# 
# def scope_to_list(scope):
#     """Convert a space separated string to a list of scopes."""
#     if isinstance(scope, list):
#         return [unicode_type(s) for s in scope]
#     elif scope is None:
#         return None
#     else:
#         return scope.split(" ")
# 
# def is_secure_transport(uri):
#     """Check if the uri is over ssl."""
#     if os.environ.get('OAUTHLIB_INSECURE_TRANSPORT'):
#         return True
#     return uri.lower().startswith('https://')


import json
import time
    import urlparse
    import urllib.parse as urlparse
from oauthlib.common import add_params_to_uri, add_params_to_qs, unicode_type
from .errors import raise_from_error, MissingTokenError, MissingTokenTypeError
from .errors import MismatchingStateError, MissingCodeError
from .errors import InsecureTransportError
from .utils import list_to_scope, scope_to_list, is_secure_transport
                  state between the request and callback.  The authorization
                  server includes this value when redirecting the user-agent
                  back to the client.  The parameter SHOULD be used for
                  preventing cross-site request forgery as described in
                  `Section 10.12`_.
    :param kwargs: Extra arguments to embed in the grant/authorization URL.

    An example of an authorization code grant authorization URL:

    .. code-block:: http

        GET /authorize?response_type=code&client_id=s6BhdRkqt3&state=xyz
            &redirect_uri=https%3A%2F%2Fclient%2Eexample%2Ecom%2Fcb HTTP/1.1
        Host: server.example.com

    .. _`W3C.REC-html401-19991224`: http://tools.ietf.org/html/rfc6749#ref-W3C.REC-html401-19991224
    .. _`Section 2.2`: http://tools.ietf.org/html/rfc6749#section-2.2
    .. _`Section 3.1.2`: http://tools.ietf.org/html/rfc6749#section-3.1.2
    .. _`Section 3.3`: http://tools.ietf.org/html/rfc6749#section-3.3
    .. _`section 10.12`: http://tools.ietf.org/html/rfc6749#section-10.12
    """
    if not is_secure_transport(uri):
        raise InsecureTransportError()

    params = [(('response_type', response_type)),
              (('client_id', client_id))]

    if redirect_uri:
        params.append(('redirect_uri', redirect_uri))
    if scope:

# Path: twitter-winner/oauthlib/oauth2/rfc6749/errors.py
# def raise_from_error(error, params=None):
#     import inspect
#     import sys
#     kwargs = {
#         'description': params.get('error_description'),
#         'uri': params.get('error_uri'),
#         'state': params.get('state')
#     }
#     for _, cls in  inspect.getmembers(sys.modules[__name__], inspect.isclass):
#         if cls.error == error:
#             raise cls(**kwargs)
# 
# class MissingTokenError(OAuth2Error):
#     error = 'missing_token'
# 
# class MissingTokenTypeError(OAuth2Error):
#     error = 'missing_token_type'
# 
# Path: twitter-winner/oauthlib/oauth2/rfc6749/errors.py
# class MismatchingStateError(OAuth2Error):
#     error = 'mismatching_state'
#     description = 'CSRF Warning! State not equal in request and response.'
# 
# class MissingCodeError(OAuth2Error):
#     error = 'missing_code'
# 
# Path: twitter-winner/oauthlib/oauth2/rfc6749/errors.py
# class InsecureTransportError(OAuth2Error):
#     error = 'insecure_transport'
#     description = 'OAuth 2 MUST utilize https.'
# 
# Path: twitter-winner/oauthlib/oauth2/rfc6749/utils.py
# def list_to_scope(scope):
#     """Convert a list of scopes to a space separated string."""
#     if isinstance(scope, unicode_type) or scope is None:
#         return scope
#     elif isinstance(scope, list):
#         return " ".join([unicode_type(s) for s in scope])
#     else:
#         raise ValueError("Invalid scope, must be string or list.")
# 
# def scope_to_list(scope):
#     """Convert a space separated string to a list of scopes."""
#     if isinstance(scope, list):
#         return [unicode_type(s) for s in scope]
#     elif scope is None:
#         return None
#     else:
#         return scope.split(" ")
# 
# def is_secure_transport(uri):
#     """Check if the uri is over ssl."""
#     if os.environ.get('OAUTHLIB_INSECURE_TRANSPORT'):
#         return True
#     return uri.lower().startswith('https://')


# Path: twitter-winner/oauthlib/oauth2/rfc6749/parameters.py
import json
import time
    import urlparse
    import urllib.parse as urlparse
from oauthlib.common import add_params_to_uri, add_params_to_qs, unicode_type
from .errors import raise_from_error, MissingTokenError, MissingTokenTypeError
from .errors import MismatchingStateError, MissingCodeError
from .errors import InsecureTransportError
from .utils import list_to_scope, scope_to_list, is_secure_transport

                  state between the request and callback.  The authorization
                  server includes this value when redirecting the user-agent
                  back to the client.  The parameter SHOULD be used for
                  preventing cross-site request forgery as described in
                  `Section 10.12`_.
    :param kwargs: Extra arguments to embed in the grant/authorization URL.

    An example of an authorization code grant authorization URL:

    .. code-block:: http

        GET /authorize?response_type=code&client_id=s6BhdRkqt3&state=xyz
            &redirect_uri=https%3A%2F%2Fclient%2Eexample%2Ecom%2Fcb HTTP/1.1
        Host: server.example.com

    .. _`W3C.REC-html401-19991224`: http://tools.ietf.org/html/rfc6749#ref-W3C.REC-html401-19991224
    .. _`Section 2.2`: http://tools.ietf.org/html/rfc6749#section-2.2
    .. _`Section 3.1.2`: http://tools.ietf.org/html/rfc6749#section-3.1.2
    .. _`Section 3.3`: http://tools.ietf.org/html/rfc6749#section-3.3
    .. _`section 10.12`: http://tools.ietf.org/html/rfc6749#section-10.12
    """
    if not is_secure_transport(uri):
        raise InsecureTransportError()

    params = [(('response_type', response_type)),
              (('client_id', client_id))]

    if redirect_uri:
        params.append(('redirect_uri', redirect_uri))
    if scope:

        params.append(('scope', list_to_scope(scope)))