我基本上想保存给定用户的 Facebook ID，以便我可以通过 Facebook 接收更多 Material 。理想情况下，我想要一个既不使用 javascript 也不使用 cookie 的解决方案，只是服务器端，但没有示例，只是方向，所以我已经整理了一个我们可以讨论的解决方案。这是我认为当我将用户链接到我网站的 OAuth 对话框时有效的代码:
https://www.facebook.com/dialog/oauth?client_id=164355773607006&redirect_uri=http://www.kewlbusiness.com/oauth
然后我像这样处理它以获取用户数据:

class OAuthHandler(webapp2.RequestHandler):
    def get(self):
      args = dict(
        code = self.request.get('code'),
        client_id = facebookconf.FACEBOOK_APP_ID,
        client_secret = facebookconf.FACEBOOK_APP_SECRET,
        redirect_uri = 'http://www.koolbusiness.com/oauth',
      )
      file = urllib.urlopen("https://graph.facebook.com/oauth/access_token?" + urllib.urlencode(args))
      try:
        token_response = file.read()
      finally:
        file.close()
      access_token = cgi.parse_qs(token_response)["access_token"][-1]
      graph = facebook.GraphAPI(access_token)
      user = graph.get_object("me")   
      self.response.out.write(user["id"])
      self.response.out.write(user["name"])

class FBUser(db.Model):
    id = db.StringProperty(required=True)
    created = db.DateTimeProperty(auto_now_add=True)
    updated = db.DateTimeProperty(auto_now=True)
    name = db.StringProperty(required=True)
    profile_url = db.StringProperty()
    access_token = db.StringProperty(required=True)
    name = db.StringProperty(required=True)
    picture = db.StringProperty()
    email = db.StringProperty()
    friends = db.StringListProperty()
    dirty = db.BooleanProperty()

class I18NPage(I18NHandler):

    def get(self):
    if self.request.get('code'):
          args = dict(
            code = self.request.get('code'),
            client_id = facebookconf.FACEBOOK_APP_ID,
            client_secret = facebookconf.FACEBOOK_APP_SECRET,
            redirect_uri = 'http://www.kewlbusiness.com/',
          )
      logging.debug("client_id"+str(args))
          file = urllib.urlopen("https://graph.facebook.com/oauth/access_token?" + urllib.urlencode(args))
          try:
        logging.debug("reading file")
            token_response = file.read()
        logging.debug("read file"+str(token_response))
          finally:
            file.close()
          access_token = cgi.parse_qs(token_response)["access_token"][-1]
          graph = main.GraphAPI(access_token)
          user = graph.get_object("me")   #write the access_token to the datastore
      fbuser = main.FBUser.get_by_key_name(user["id"])
          logging.debug("fbuser "+str(fbuser))

          if not fbuser:
            fbuser = main.FBUser(key_name=str(user["id"]),
                                id=str(user["id"]),
                                name=user["name"],
                                profile_url=user["link"],
                                access_token=access_token)
            fbuser.put()
          elif fbuser.access_token != access_token:
            fbuser.access_token = access_token
            fbuser.put()
           self.render_jinja(
                'home_jinja',request=self.request,fbuser=user,...

You can log a user out of their Facebook session by directing them to the following URL:

https://www.facebook.com/logout.php?next=YOUR_URL&access_token=ACCESS_TOKEN

YOUR_URL must be a URL in your site domain, as defined in the Developer App.

class LogoutHandler(webapp2.RequestHandler):
    def get(self):
        self.set_cookie("fbsr_" + facebookconf.FACEBOOK_APP_ID, None, expires=time.time() - 86400)
        self.redirect("/")
    def set_cookie(self, name, value, expires=None):

        if value is None:
            value = 'deleted'
            expires = datetime.timedelta(minutes=-50000)
        jar = Cookie.SimpleCookie()
        jar[name] = value
        jar[name]['path'] = '/'
        if expires:
            if isinstance(expires, datetime.timedelta):
                expires = datetime.datetime.now() + expires
            if isinstance(expires, datetime.datetime):
                expires = expires.strftime('%a, %d %b %Y %H:%M:%S')
            jar[name]['expires'] = expires
        self.response.headers.add_header(*jar.output().split(': ', 1))

def get(self):
    fbuser=None
    profile = None
    access_token = None
    accessed_token = None
    logout = False
    if self.request.get('code'):
      args = dict(
        code = self.request.get('code'),
        client_id = facebookconf.FACEBOOK_APP_ID,
        client_secret = facebookconf.FACEBOOK_APP_SECRET,
        redirect_uri = 'http://self.get_host()/',
      )
      file = urllib.urlopen("https://graph.facebook.com/oauth/access_token?" + urllib.urlencode(args))
      try:
        token_response = file.read()
      finally:
        file.close()
      access_token = cgi.parse_qs(token_response)["access_token"][-1]
      graph = main.GraphAPI(access_token)
      user = graph.get_object("me")   #write the access_token to the datastore
      fbuser = main.FBUser.get_by_key_name(user["id"])
      logging.debug("fbuser "+fbuser.name)

      if not fbuser:
        fbuser = main.FBUser(key_name=str(user["id"]),
                            id=str(user["id"]),
                            name=user["name"],
                            profile_url=user["link"],
                            access_token=access_token)
        fbuser.put()
      elif fbuser.access_token != access_token:
        fbuser.access_token = access_token
        fbuser.put()

    current_user = main.get_user_from_cookie(self.request.cookies, facebookconf.FACEBOOK_APP_ID, facebookconf.FACEBOOK_APP_SECRET)
    if current_user:
      graph = main.GraphAPI(current_user["access_token"])
      profile = graph.get_object("me")
      accessed_token = current_user["access_token"]

class FBUser(db.Model):
    id = db.StringProperty(required=True)
    created = db.DateTimeProperty(auto_now_add=True)
    updated = db.DateTimeProperty(auto_now=True)
    name = db.StringProperty(required=True)
    profile_url = db.StringProperty()
    access_token = db.StringProperty(required=True)
    name = db.StringProperty(required=True)
    picture = db.StringProperty()
    email = db.StringProperty()

def get_user_from_cookie(cookies, app_id, app_secret):
    """Parses the cookie set by the official Facebook JavaScript SDK.

    cookies should be a dictionary-like object mapping cookie names to
    cookie values.

    If the user is logged in via Facebook, we return a dictionary with the
    keys "uid" and "access_token". The former is the user's Facebook ID,
    and the latter can be used to make authenticated requests to the Graph API.
    If the user is not logged in, we return None.

    Download the official Facebook JavaScript SDK at
    http://github.com/facebook/connect-js/. Read more about Facebook
    authentication at http://developers.facebook.com/docs/authentication/.
    """
    logging.debug('getting user by cookie')
    cookie = cookies.get("fbsr_" + app_id, "")
    if not cookie:
        logging.debug('no cookie found')
        return None
    logging.debug('cookie found')
    response = parse_signed_request(cookie, app_secret)
    if not response:
        logging.debug('returning none')
        return None

    args = dict(
        code = response['code'],
        client_id = app_id,
        client_secret = app_secret,
        redirect_uri = '',
    )

    file = urllib.urlopen("https://graph.facebook.com/oauth/access_token?" + urllib.urlencode(args))
    try:
        token_response = file.read()
    finally:
        file.close()

    access_token = cgi.parse_qs(token_response)["access_token"][-1]
    logging.debug('returning cookie')
    return dict(
        uid = response["user_id"],
        access_token = access_token,
    )

JavaScript/Cookies are used when you're trying to authenticate an new user. That aren't exists in your database, and you don't have his accessToken.

    {% if user or current_user or fbuser %}
        <div id="user-ident">
            <span>{% trans %}Welcome,{% endtrans %} <b>{{ current_user.name }}{% if not current_user and user %}{{ user.nickname() }}{% endif %}{% if not current_user and not user and fbuser %}{{ fbuser.name }}{% endif %}</span>
        </div>
        {% endif %}

最佳答案

当您尝试对新用户进行身份验证时会使用 JavaScript/Cookie。那不存在于您的数据库中，并且您没有他的 accessToken。

如果您拥有用户的 accessToken - 您可以通过 HTTP 从任何编程语言访问 Facebook API，如果您愿意，无需 cookie/javascript。有python客户端，例如:http://github.com/pythonforfacebook/facebook-sdk (原为 https://github.com/facebook/python-sdk)

关于python - 如何在服务器端完全启用 Facebook OAuth 2.0？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/8236298/