Current File : //lib64/python2.7/site-packages/tornado/auth.pyc
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authentication schemes.
All the classes in this file are class mixins designed to be used with
the `tornado.web.RequestHandler` class. They are used in two ways:
* On a login handler, use methods such as ``authenticate_redirect()``,
``authorize_redirect()``, and ``get_authenticated_user()`` to
establish the user's identity and store authentication tokens to your
database and/or cookies.
* In non-login handlers, use methods such as ``facebook_request()``
or ``twitter_request()`` to use the authentication tokens to make
requests to the respective services.
They all take slightly different arguments due to the fact all these
services implement authentication and authorization slightly differently.
See the individual service classes below for complete documentation.
Example usage for Google OAuth:
.. testcode::
class GoogleOAuth2LoginHandler(tornado.web.RequestHandler,
tornado.auth.GoogleOAuth2Mixin):
@tornado.gen.coroutine
def get(self):
if self.get_argument('code', False):
user = yield self.get_authenticated_user(
redirect_uri='http://your.site.com/auth/google',
code=self.get_argument('code'))
# Save the user with e.g. set_secure_cookie
else:
yield self.authorize_redirect(
redirect_uri='http://your.site.com/auth/google',
client_id=self.settings['google_oauth']['key'],
scope=['profile', 'email'],
response_type='code',
extra_params={'approval_prompt': 'auto'})
.. testoutput::
:hide:
.. versionchanged:: 4.0
All of the callback interfaces in this module are now guaranteed
to run their callback with an argument of ``None`` on error.
Previously some functions would do this while others would simply
terminate the request on their own. This change also ensures that
errors are more consistently reported through the ``Future`` interfaces.
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module's legacy callback interface.
Note that when using this decorator the ``callback`` parameter
inside the function will actually be a future.
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* ``_OPENID_ENDPOINT``: the identity provider's URI.
t namet emailt languaget usernamec C� sS | p | j j } | j | d | �} | j | j d t j | � � | � d S( s� Redirects to the authentication URL for this service.
After authentication, the service will redirect back to the given
callback URI with additional parameters including ``openid.mode``.
We request the given attributes for the authenticated user by
default (name, email, language, and username). If you don't need
all those attributes for your app, you can request fewer with
the ax_attrs keyword argument.
.. versionchanged:: 3.1
Returns a `.Future` and takes an optional callback. These are
not strictly necessary as this method is synchronous,
but they are supplied for consistency with
`OAuthMixin.authorize_redirect`.
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This method should be called by the handler that receives the
redirect from the `authenticate_redirect()` method (which is
often the same as the one that calls it; in that case you would
call `get_authenticated_user` if the ``openid.mode`` parameter
is present and `authenticate_redirect` if it is not).
The result of this method will generally be used to set a cookie.
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t j � S( s� Returns the `.AsyncHTTPClient` instance to be used for auth requests.
May be overridden by subclasses to use an HTTP client other than
the default.
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OAuthMixinc B� s� e Z d Z e d d d d d � � Z e d d � � Z d d d � Z d � Z d � Z
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See `TwitterMixin` below for an example implementation.
Class attributes:
* ``_OAUTH_AUTHORIZE_URL``: The service's OAuth authorization url.
* ``_OAUTH_ACCESS_TOKEN_URL``: The service's OAuth access token url.
* ``_OAUTH_VERSION``: May be either "1.0" or "1.0a".
* ``_OAUTH_NO_CALLBACKS``: Set this to True if the service requires
advance registration of callbacks.
Subclasses must also override the `_oauth_get_user_future` and
`_oauth_consumer_token` methods.
c C� s� | r' t | d t � r' t d � � n | d k rB | j � } n t | d d � d k r� | j | j d | d | � t j | j | j
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| | � � d S( s< Redirects the user to obtain OAuth authorization for this service.
The ``callback_uri`` may be omitted if you have previously
registered a callback URI with the third-party service. For
some services (including Friendfeed), you must use a
previously-registered callback URI and cannot specify a
callback via this method.
This method sets a cookie called ``_oauth_request_token`` which is
subsequently used (and cleared) in `get_authenticated_user` for
security purposes.
Note that this method is asynchronous, although it calls
`.RequestHandler.finish` for you so it may not be necessary
to pass a callback or use the `.Future` it returns. However,
if this method is called from a function decorated with
`.gen.coroutine`, you must call it with ``yield`` to keep the
response from being closed prematurely.
.. versionchanged:: 3.1
Now returns a `.Future` and takes an optional callback, for
compatibility with `.gen.coroutine`.
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� t j | j | � � d S( s Gets the OAuth authorized user and access token.
This method should be called from the handler for your
OAuth callback URL to complete the registration process. We run the
callback with the authenticated user dictionary. This dictionary
will contain an ``access_key`` which can be used to make authorized
requests to this service on behalf of the user. The dictionary will
also contain other fields such as ``name``, depending on the service
used.
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Rr Rs R R� RD t _oauth_get_user_futureR# R$ R% t _on_oauth_get_user( R; R Rv t access_token( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR� � s c C� s
t � � d S( s� Subclasses must override this to return their OAuth consumer keys.
The return value should be a `dict` with keys ``key`` and ``secret``.
N( t NotImplementedError( R; ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR� � s c C� s | j | | � d S( s Subclasses must override this to get basic information about the
user.
Should return a `.Future` whose result is a dictionary
containing information about the user, which may have been
retrieved by using ``access_token`` to make a request to the
service.
The access token will be added to the returned dictionary to make
the result of `get_authenticated_user`.
For backwards compatibility, the callback-based ``_oauth_get_user``
method is also supported.
N( t _oauth_get_user( R; R� R ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR� � s c C� s
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s� Returns the OAuth parameters as a dict for the given request.
parameters should include all POST arguments and query string arguments
that will be sent with the request.
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parametersRB R� t base_argsR& R� ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyt _oauth_request_parameters s$ !
c C� s
t j � S( s� Returns the `.AsyncHTTPClient` instance to be used for auth requests.
May be overridden by subclasses to use an HTTP client other than
the default.
( R Ry ( R; ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyRH . s N( R R Rz R R R� R, RM R� R� R� R� R� R� R� R� R� RH ( ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR{ ; s" -! t OAuth2Mixinc B� sJ e Z d Z e d d d d d d d d � � Z d d d d d d � Z RS( s# Abstract implementation of OAuth 2.0.
See `FacebookGraphMixin` or `GoogleOAuth2Mixin` below for example
implementations.
Class attributes:
* ``_OAUTH_AUTHORIZE_URL``: The service's authorization url.
* ``_OAUTH_ACCESS_TOKEN_URL``: The service's access token url.
t codec C� sq i | d 6| d 6| d 6} | r1 | j | � n | rM d j | � | d <n | j t | j | � � | � d S( s� Redirects the user to obtain OAuth authorization for this service.
Some providers require that you register a redirect URL with
your application instead of passing one via this method. You
should call this method to log the user in, and then call
``get_authenticated_user`` in the handler for your
redirect URL to complete the authorization process.
.. versionchanged:: 3.1
Returns a `.Future` and takes an optional callback. These are
not strictly necessary as this method is synchronous,
but they are supplied for consistency with
`OAuthMixin.authorize_redirect`.
t redirect_urit client_idt
response_typeRn t scopeN( RY R\ R7 R R� ( R; R� R� t
client_secretR~ R R� R� R& ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR� B s
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t TwitterMixinc B� s� e Z d Z d Z d Z d Z d Z e Z d Z e
d d d � � Z e
d d d d � � Z d � Z d � Z e j d
� � Z RS( s& Twitter OAuth authentication.
To authenticate with Twitter, register your application with
Twitter at http://twitter.com/apps. Then copy your Consumer Key
and Consumer Secret to the application
`~tornado.web.Application.settings` ``twitter_consumer_key`` and
``twitter_consumer_secret``. Use this mixin on the handler for the
URL you registered as your application's callback URL.
When your application is set up, you can use this mixin like this
to authenticate the user with Twitter and get access to their stream:
.. testcode::
class TwitterLoginHandler(tornado.web.RequestHandler,
tornado.auth.TwitterMixin):
@tornado.gen.coroutine
def get(self):
if self.get_argument("oauth_token", None):
user = yield self.get_authenticated_user()
# Save the user using e.g. set_secure_cookie()
else:
yield self.authorize_redirect()
.. testoutput::
:hide:
The user object returned by `~OAuthMixin.get_authenticated_user`
includes the attributes ``username``, ``name``, ``access_token``,
and all of the custom Twitter user attributes described at
https://dev.twitter.com/docs/api/1.1/get/users/show
s+ https://api.twitter.com/oauth/request_tokens* https://api.twitter.com/oauth/access_tokens' https://api.twitter.com/oauth/authorizes* https://api.twitter.com/oauth/authenticates https://api.twitter.com/1.1c C� sD | j � } | j | j d | � t j | j | j d | � � d S( sa Just like `~OAuthMixin.authorize_redirect`, but
auto-redirects if authorized.
This is generally the right interface to use if you are using
Twitter for single-sign on.
.. versionchanged:: 3.1
Now returns a `.Future` and takes an optional callback, for
compatibility with `.gen.coroutine`.
R< N( RH RI R� R$ R% R� t _OAUTH_AUTHENTICATE_URLR ( R; R< R t http( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR= � s
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S( s! Fetches the given API path, e.g., ``statuses/user_timeline/btaylor``
The path should not include the format or API version number.
(we automatically use JSON format and API version 1).
If the request is a POST, ``post_args`` should be provided. Query
string arguments should be given as keyword arguments.
All the Twitter methods are documented at http://dev.twitter.com/
Many methods require an OAuth access token which you can
obtain through `~OAuthMixin.authorize_redirect` and
`~OAuthMixin.get_authenticated_user`. The user returned through that
process includes an 'access_token' attribute that can be used
to make authenticated requests via this method. Example
usage:
.. testcode::
class MainHandler(tornado.web.RequestHandler,
tornado.auth.TwitterMixin):
@tornado.web.authenticated
@tornado.gen.coroutine
def get(self):
new_entry = yield self.twitter_request(
"/statuses/update",
post_args={"status": "Testing Tornado Web Server"},
access_token=self.current_user["access_token"])
if not new_entry:
# Call failed; perhaps missing permission?
yield self.authorize_redirect()
return
self.finish("Posted a message!")
.. testoutput::
:hide:
s http:s https:s .jsonRC R� RB R3 RD R N( Re t _TWITTER_BASE_URLRY R R� R9 R: RH R$ R% t _on_twitter_requestRI ( R; t pathR R� t post_argsR& RL t all_argsRB t oauthR� t
http_callback( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyt twitter_request� s& )
!
c C� sP | j r3 | j t d | j | j j f � � d S| j t j | j � � d S( Ns Error response %s fetching %s( Rr Rs R R4 RL Ru R t json_decodeRD ( R; R Rv ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR� � s c C� sA | j d d � | j d d � t d | j d d | j d � S( Nt twitter_consumer_keys
Twitter OAutht twitter_consumer_secretR� R� ( t require_settingRE t settings( R; ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR� � s
c c� s@ | j d d | �V} | r- | d | d <n t j | � � d S( Ns /account/verify_credentialsR� t screen_nameR1 ( R� R t Return( R; R� Rw ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR� � s
N( R R Rz R� R� R� R� R R| R� R R R= R, R� R� R� R t coroutineR� ( ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR� p s @ t GoogleOAuth2Mixinc B� sG e Z d Z d Z d Z e Z d Z e d � � Z d � Z
d � Z RS( s Google authentication using OAuth2.
In order to use, register your application with Google and copy the
relevant parameters to your application settings.
* Go to the Google Dev Console at http://console.developers.google.com
* Select a project, or create a new one.
* In the sidebar on the left, select APIs & Auth.
* In the list of APIs, find the Google+ API service and set it to ON.
* In the sidebar on the left, select Credentials.
* In the OAuth section of the page, select Create New Client ID.
* Set the Redirect URI to point to your auth handler
* Copy the "Client secret" and "Client ID" to the application settings as
{"google_oauth": {"key": CLIENT_ID, "secret": CLIENT_SECRET}}
.. versionadded:: 3.2
s) https://accounts.google.com/o/oauth2/auths* https://accounts.google.com/o/oauth2/tokent google_oauthc C� s� | j � } t j i | d 6| d 6| j | j d d 6| j | j d d 6d d 6� } | j | j t j | j | � d d
d i d d
6d | �d S( s_ Handles the login for the Google user, returning a user object.
Example usage:
.. testcode::
class GoogleOAuth2LoginHandler(tornado.web.RequestHandler,
tornado.auth.GoogleOAuth2Mixin):
@tornado.gen.coroutine
def get(self):
if self.get_argument('code', False):
user = yield self.get_authenticated_user(
redirect_uri='http://your.site.com/auth/google',
code=self.get_argument('code'))
# Save the user with e.g. set_secure_cookie
else:
yield self.authorize_redirect(
redirect_uri='http://your.site.com/auth/google',
client_id=self.settings['google_oauth']['key'],
scope=['profile', 'email'],
response_type='code',
extra_params={'approval_prompt': 'auto'})
.. testoutput::
:hide:
R� R� R� R� R� R� t authorization_codet
grant_typeRB RC t headerss! application/x-www-form-urlencodeds Content-TypeRD N(
RH R9 R: R� t _OAUTH_SETTINGS_KEYRI R� R$ R% R� ( R; R� R� R R� RD ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyRM s
c C� sM | j r* | j t d t | � � � d St j | j � } | j | � d S( s7 Callback function for the exchange to the access token.s Google auth error: %sN( Rr Rs R R R R� RD Ru ( R; R Rv R& ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR� F s
c C� s
t j � S( s� Returns the `.AsyncHTTPClient` instance to be used for auth requests.
May be overridden by subclasses to use an HTTP client other than
the default.
( R Ry ( R; ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyRH O s ( R R Rz R� R� R R| R� R, RM R� RH ( ( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR� s * t FacebookGraphMixinc B� sq e Z d Z d Z d Z e Z d Z e d
d � � Z
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d
d � � Z
d � Z d � Z RS( s; Facebook authentication using the new Graph API and OAuth2.s. https://graph.facebook.com/oauth/access_token?s& https://www.facebook.com/dialog/oauth?s https://graph.facebook.comc
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sd Handles the login for the Facebook user, returning a user object.
Example usage:
.. testcode::
class FacebookGraphLoginHandler(tornado.web.RequestHandler,
tornado.auth.FacebookGraphMixin):
@tornado.gen.coroutine
def get(self):
if self.get_argument("code", False):
user = yield self.get_authenticated_user(
redirect_uri='/auth/facebookgraph/',
client_id=self.settings["facebook_api_key"],
client_secret=self.settings["facebook_secret"],
code=self.get_argument("code"))
# Save the user with e.g. set_secure_cookie
else:
yield self.authorize_redirect(
redirect_uri='/auth/facebookgraph/',
client_id=self.settings["facebook_api_key"],
extra_params={"scope": "read_stream,offline_access"})
.. testoutput::
:hide:
R� R� R� R� t idR. Rl Rm Rp t picturet linkN( RH RZ RY RI R� R$ R% R� (
R; R� R� R� R� R t extra_fieldsR� R& t fields( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyRM _ s
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j | j | | | � d | d d d j
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Ns Facebook auth error: %sR� i����t expiresR� s /meR R� RT ( Rr Rs R R R t parse_qs_bytest
native_strRD t gett facebook_requestR$ R% t _on_get_user_infoR\ ( R; R� R� R� R R� Rv R& t session( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR� � s
c C� s� | d k r | j d � d Si } x! | D] } | j | � | | <q* W| j i | d d 6| j d � d 6� | j | � d S( NR� R� t session_expires( R Ru R� RY ( R; R R� R� Rw t fieldmapt field( ( s2 /usr/lib64/python2.7/site-packages/tornado/auth.pyR� � s
(c K� s� | j | } i } | r3 | | d <| j | � n | rS | d t j | � 7} n t j | j | � } | j � } | d k r� | j | d d d t j | � d | �n | j | d | �d S( s� Fetches the given relative API path, e.g., "/btaylor/picture"
If the request is a POST, ``post_args`` should be provided. Query
string arguments should be given as keyword arguments.
An introduction to the Facebook Graph API can be found at
http://developers.facebook.com/docs/api
Many methods require an OAuth access token which you can
obtain through `~OAuth2Mixin.authorize_redirect` and
`get_authenticated_user`. The user returned through that
process includes an ``access_token`` attribute that can be
used to make authenticated requests via this method.
Example usage:
..testcode::
class MainHandler(tornado.web.RequestHandler,
tornado.auth.FacebookGraphMixin):
@tornado.web.authenticated
@tornado.gen.coroutine
def get(self):
new_entry = yield self.facebook_request(
"/me/feed",
post_args={"message": "I am posting from my Tornado application!"},
access_token=self.current_user["access_token"])
if not new_entry:
# Call failed; perhaps missing permission?
yield self.authorize_redirect()
return
self.finish("Posted a message!")
.. testoutput::
:hide:
The given path is relative to ``self._FACEBOOK_BASE_URL``,
by default "https://graph.facebook.com".
.. versionchanged:: 3.1
Added the ability to override ``self._FACEBOOK_BASE_URL``.
R� R3 RB RC RD R N(
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See http://oauth.net/core/1.0/#signing_process
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S( s~ Calculates the HMAC-SHA1 OAuth 1.0a signature for the given request.
See http://oauth.net/core/1.0a/#signing_process
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