} } }

    wxpython 应用 应用 google gauth 认证

    添加时间:2013-5-9 点击量:

    比来在用wxpyhon google 接洽人应用, 不克不及避免的碰到了应用oauth 验证的题目。


    起首贴一下关于 OAuth 2.0 的官方文档  https://developers.google.com/accounts/docs/OAuth2


    然后再贴一下 中文文档  http://blog.csdn.net/totogogo/article/details/6860966


    Google供给下列4种体式格式的OAuth 2.0:



    • The Client-side Applications flow for JavaScript applications running in a browser



    该flow实用于那些Javascript-based web app,这种app因为以javascript为主,不须要maintain state over time (例如不须要用session来存储state)。











    • The Web Server Applications flow for web applications with servers that can securely store persistent information





                 This flow is meant for web applications with servers that can keep secrets and maintain state.






    • The Installed Applications flow for desktop and mobile applications







    This flow is meant for mobile, and desktop installed applications that wantaccess to user data.











    • The OAuth 2.0 for Devices flow。





        该flow实用于那些想access google data的application
    which运行在device上,但无法进行用户授权(e.g. game consoles or media hubs), 须要应用另一个PC
    or device来进行用户授权的动作的case。



        英文原文:This flow is suitable for applications executing on devices
    which wantaccess to user data, but dont have an easy data-entry method
    (e.g. game consoles or media hubs), and where the end-user has separate
    access to a     user-agent on another computer or
    device (e.g. home computer, a latop, or asmart phone).





    因为我应用的是wxpython 是第三种安装的应用法度,就只说一下这个的应用办法。


    这里获取access token有两种体式格式,一种是应用 http 恳求, 另一种是应用 gdata.gauth


    http 恳求斗劲灵活, 然则斗劲合适在线应用, 保存token 也斗劲麻烦, 起首说一下http 恳求的应用体式格式


    step1  发送用户信息 到 OAuth 



    #示例
    
    def gen_url(url, data):

    生成url-

    params = &.join([str(arg)+=+str(val) for arg, val in data.items()])
    url = url + ? + params
    return url

    url = https://accounts.google.com/o/oauth2/auth
    datas = {
    client_id=21302922996.apps.googleusercontent.com
    redirect_uri=urn:ietf:wg:oauth:2.0:oob
    scope=https://www.google.com/m8/feeds/
    response_type=code
    }

    auth_url = gen_url(url, data)
    webbrowser.open(auth_url)



     参数


    client_id  创建的应用id (若是还没创建应用 请点击上边上文链接查看如何创建)


    redirect_uri 获取token后的跳转链接地址  安装的应用法度为  urn:ietf:wg:oauth:2.0:oob web应用这里应当是http 地址


    scope  你要认证的API 这里应用的google contacts API   其它API scope 请查看 https://developers.google.com/oauthplayground/


    response_type  响应类型 这里是code web应用为 token


    step2 当上边的恳求发出后


     会打开浏览器认证, 登录、授权、然后获取 authorization code


    step3 获取authorization code 后 post 恳求https://accounts.google.com/o/oauth2/token


    参数包含


    code=4/P7q7W91a-oMsCeLvIaQm6bTrgtp6


    client_id=21302922996.apps.googleusercontent.com


    client_secret=XTHhXh1SlUNgvyWGwDk1EjXB


    redirect_uri=https://www.example.com/back


    grant_type=authorization_code


    认证成功后会获得一个JSON object 内容如下



    {
    
    access_token:1/fFAGRNJru1FTz70BzhT3Zg
    expires_in:3600
    token_type:Bearer
    refresh_token:1/6BMfW9j53gdGImsixUH6kU5RsR4zwI9lUVX-tqf8JXQ
    }


    然后就可以用access_token 作为参数接见api了


    以上是http 体式格式获取token的体式格式


    如今我们介绍第二种 应用gdata.gauth 获取


    应用代码的体式格式讲解吧,斗劲清楚一些



    #!/usr/bin/python
    
    # coding: utf8

    File: contact_login.py
    Author: goodspeed
    Date: 20130505 17:00:36 CST
    Description: google contacts login model


    __future__ import unicode_literals

    import wx
    import webbrowser

    import gdata.gauth
    import atom.http_core


    APP_NAME = YOUR App name
    CLIENT_ID = YOUR CLIENT_ID
    CLIENT_SECRET = YOUR CLIENT_SECRET
    SCOPE = https://www.google.com/m8/feeds/
    REDIRECT_URI = urn:ietf:wg:oauth:2.0:oob
    OAUTH_URL = https://accounts.google.com/o/oauth2/auth
    TOKEN_URO = https://accounts.google.com/o/oauth2/token
    USER_AGENT = dummysample


    def get_auth_code():

    获取authorization code

    auth_token = gdata.gauth.OAuth2Token(
    client_id = CLIENT_ID,
    client_secret = CLIENT_SECRET,
    scope = SCOPE,
    user_agent=,

    redirect_uri = REDIRECT_URI
    auth_url = auth_token.generate_authorize_url(redirect_uri=redirect_uri)
    #在浏览器打开url 完成登录 授权步调 获取authorization code
    webbrowser.open(auth_url)


    def get_access_token(auth_token, auth_code):

    用获得的 authorization code 获取access token 然后保存

    redirect_url = %s?code=%s % (REDIRECT_URI, auth_code)
    url = atom.http_core.ParseUri(redirect_url)
    token = auth_token.get_access_token(url.query)
    token = gdata.gauth.token_to_blob(auth_token)
    return auth_token


    #登录 进口
    def singin():
    #获取已保存token 弱没有token=None
    try:
    with open(token, r) as to:
    token = to.read()
    try:
    token = gdata.gauth.token__blob(token)
    except gdata.gauth.UnsupportedTokenType, e:
    raise e
    except:
    token = None
    #起首断定是否有已保存的token
    #若是有直接应用 没有从头获取
    if token:
    auth_token = token
    else:
    auth_token = get_auth_code()
    auth_code = enter_auth_code()
    auth_token = get_access_token(auth_token, auth_code)
    return auth_token


    #将 authorization code 复制到dialog, 传回wxpyton
    def enter_auth_code():
    dialog = wx.TextEntryDialog(None,
    enter authorization code!, enter authorization code,
    , style=wx.OK|wx.CANCEL)
    if dialog.ShowModal() == wx.ID_OK:
    #返回 authorization code
    return dialog.GetValue()
    dialog.Destroy()


    if __name__ == __main__:
      singin()




    如今就可以用auth_token来接见API了



    #!/usr/bin/python                                                               
    
    # -- coding: utf-8 --

    File: contacts_operate.py
    Author: goodspeed
    Date: 2013-05-07 20:13:14 CST
    Description: contacts data operate


    __future__ import unicode_literals

    import gdata.contacts.client as gd

    login_contact import APP_NAME


    def query_contacts(auth_token):
    gd_client = gd.ContactsClient(source=APP_NAME)
    gd_client = auth_token.authorize(gd_client)
    query = gd.ContactsQuery(max_results=200)
    feed = gd_client.GetContacts(q = query)

    for i, entry in enumerate(feed.entry):
    if entry.name:
    print i, entry.name.full_name.text


     就是这些。。如今正在进修若是有不合错误的处所请提示一下。感谢

    所有随风而逝的都属于昨天的,所有历经风雨留下来的才是面向未来的。—— 玛格丽特·米切尔 《飘》
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