author | Tero Marttila <terom@paivola.fi> |
Mon, 13 Jan 2014 01:49:34 +0200 | |
changeset 348 | 089ec3eddc92 |
child 349 | 3c20473d0bdc |
permissions | -rw-r--r-- |
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# encoding: utf-8 |
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|
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import datetime |
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import werkzeug |
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import werkzeug.urls |
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|
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import pvl.web |
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import pvl.web.response |
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|
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from pvl.login import pubtkt |
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from pvl.web import urls, html |
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|
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import logging; log = logging.getLogger('pvl.login.server') |
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|
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class Handler (pvl.web.Handler) : |
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# Bootstrap |
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DOCTYPE = 'html' |
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HTML_XMLNS = None |
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HTML_LANG = 'en' |
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CSS = ( |
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'//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css', |
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) |
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JS = ( |
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'//code.jquery.com/jquery.js', |
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'//netdna.bootstrapcdn.com/bootstrap/3.0.3/js/bootstrap.min.js', |
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) |
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|
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def process_cookie (self) : |
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""" |
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Reverse the urlencoding used for the cookie... |
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""" |
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|
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log.debug("cookies: %s", self.request.cookies) |
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|
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cookie = self.request.cookies.get(self.app.cookie_name) |
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|
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log.debug("cookie %s=%s", self.app.cookie_name, cookie) |
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|
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if cookie : |
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cookie = werkzeug.urls.url_unquote(cookie) |
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|
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log.debug("cookie decoded: %s", cookie) |
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|
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if cookie : |
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return self.app.load(cookie) |
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|
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class Index (Handler) : |
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TITLE = u"Päivölä Network Login" |
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|
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pubtkt = None |
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cookie_error = None |
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|
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def process (self) : |
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try : |
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self.pubtkt = self.process_cookie() |
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except pubtkt.Error as ex : |
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self.cookie_error = ex |
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|
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def render_info (self) : |
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if self.cookie_error : |
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return ( |
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html.h2("Invalid cookie"), |
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html.p(self.cookie_error), |
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) |
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elif self.pubtkt : |
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return ( |
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html.h2("Login: {pubtkt.uid}".format(pubtkt=self.pubtkt)), |
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) |
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else : |
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return ( |
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html.a(href=self.url(Login), title="Login")(html.h2("No login")), |
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) |
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|
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def render (self) : |
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|
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return html.div(class_='container')( |
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self.render_info(), |
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) |
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|
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class Login (Handler) : |
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TITLE = "Login" |
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|
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STYLE = """ |
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form#login { |
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max-width: 50%; |
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padding: 1em; |
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margin: 0 auto; |
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} |
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|
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""" |
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|
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|
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auth_error = None |
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|
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def process (self) : |
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if self.request.method == 'POST' : |
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back = self.app.login_server |
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username = self.request.form.get('username') |
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password = self.request.form.get('username') |
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|
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if username and password : |
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# preprocess |
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username = username.strip().lower() |
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|
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try : |
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pt = self.app.auth(username, password) |
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|
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except pubtkt.Error as ex : |
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self.auth_errors = ex |
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|
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else : |
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# browsers seem to be very particular about quoting ;'s in cookie values... |
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# this follows PHP's setcookie() encoding... |
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cookie = werkzeug.urls.url_quote(self.app.sign(pt)) |
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|
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# redirect with cookie |
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response = pvl.web.response.redirect(back) |
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|
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response.set_cookie(self.app.cookie_name, cookie, |
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domain = self.app.cookie_domain, |
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secure = self.app.cookie_secure, |
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httponly = self.app.cookie_httponly, |
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) |
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|
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return response |
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|
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def render (self) : |
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return html.div(class_='container')( |
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html.form(action=self.request.path, method='POST', id='login')( |
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html.fieldset( |
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html.legend("Log in"), |
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|
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html.div(class_='form-group')( |
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html.label(for_='username', class_='sr-only')("Username"), |
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html.input(name='username', type='text', class_='form-control', placeholder="username", required=True, autofocus=True), |
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|
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html.label(for_='password', class_='sr-only')("Password"), |
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html.input(name='password', type='password', class_='form-control', placeholder="Password", required=True), |
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), |
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|
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html.button(type='submit', class_='btn btn-primary')("Login"), |
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) |
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) |
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) |
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|
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class LoginApplication (pvl.web.Application) : |
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URLS = urls.Map(( |
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urls.rule('/', Index), |
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urls.rule('/login', Login), |
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)) |
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|
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PUBLIC_KEY = 'etc/login/public.pem' |
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PRIVATE_KEY = 'etc/login/private.pem' |
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|
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login_server = 'https://login.test.paivola.fi/' |
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parents:
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login_expire = datetime.timedelta(hours=1) |
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parents:
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|
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cookie_name = 'auth_pubtkt' |
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cookie_domain = 'test.paivola.fi' |
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parents:
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cookie_secure = True |
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parents:
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cookie_httponly = True |
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parents:
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|
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def __init__ (self, public_key=PUBLIC_KEY, private_key=PRIVATE_KEY, **opts) : |
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super(LoginApplication, self).__init__(**opts) |
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|
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self.server_keys = pubtkt.ServerKeys.config( |
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parents:
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public_key = public_key, |
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parents:
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private_key = private_key, |
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) |
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|
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parents:
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def load (self, cookie) : |
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""" |
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parents:
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Load a pubtkt from a cookie, and verify it. |
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parents:
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""" |
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parents:
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|
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parents:
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return pubtkt.PubTkt.load(cookie, self.server_keys.public) |
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|
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parents:
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def auth (self, username, password) : |
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""" |
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parents:
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Perform authentication, returning a PubTkt, signed |
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parents:
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""" |
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parents:
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|
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parents:
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return pubtkt.PubTkt.new(username, |
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parents:
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expiry = self.login_expire, |
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185 |
) |
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parents:
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|
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parents:
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def sign (self, pubtkt) : |
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""" |
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parents:
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189 |
Create a cookie by signing the given pubtkt. |
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parents:
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190 |
""" |
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parents:
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191 |
|
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parents:
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return pubtkt.sign(self.server_keys.private) |
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parents:
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193 |