花了两天终于搞定了，记录一下，方便自己日后查看(大部分参考了网上的大神)

  1. 要实现github第三方登录，首先你必须要有github账号呀，so，登陆到github官网注册

  2. 在你的github账号中的profile里面找到Oauth application ,在Homepage URL和Authorization callback URL里面都填http://localhost:8000,这里被坑了好久 :( ( PS: 真心蛋疼 )

  3. 一般申请第三方登录都需要经过几个步骤：

    • 跳转到第三方认证界面
    • 填写第三方登录的账号
    • 经过回调redirect_uri 回调到自己网页

  4. 废话不多说，直接上代码吧

# 在settings中# github第三方登录配置
# 请求gihhub第三方登录url
GITHUB_AUTHORIZE_URL = 'https://github.com/login/oauth/authorize'
GITHUB_CLIENTID = 'client_id'
GITHUB_CLIENTSECRET = 'client_secret'

# 这里是github认证处理的url,就是自己处理登陆逻辑(被坑好好久)
GITHUB_CALLBACK = 'http://localhost:8000/oauth/github/'

# 新建一个oauth app
# python manage.py startapp oauth

# 在oauth/urls.py中
urlpatterns = [
    url(r'github/$', views.github_auth,name='github_oauth'),
    url(r'github_login/$', views.githhub_login, name='github_login'),
]

# 在oauth/veiws.py中
GITHUB_CLIENTID = settings.GITHUB_CLIENTID
GITHUB_CLIENTSECRET = settings.GITHUB_CLIENTSECRET
GITHUB_CALLBACK = settings.GITHUB_CALLBACK
GITHUB_AUTHORIZE_URL = settings.GITHUB_AUTHORIZE_URL

# 这里不是很明白
def _get_refer_url(request):
    refer_url = request.META.get('HTTP_REFER', 
    '/index(自己的首页)')
    host = request.META['HTTP_HOST']
    if refer_url.startswith('http') and host not in refer_url:
        refer_url = '/index'
    return refer_url

# 第一步: 请求github第三方登录
def githhub_login(request):
    data = {
        'client_id': GITHUB_CLIENTID,
        'client_secret': GITHUB_CLIENTSECRET,
        'redirect_uri': GITHUB_CALLBACK,
        'state': _get_refer_url(request),
    }
    github_auth_url = '%s?%s' % 
    (GITHUB_AUTHORIZE_URL,urllib.parse.urlencode(data))
    print('git_hub_auth_url',github_auth_url)
    return HttpResponseRedirect(github_auth_url)

# github认证处理
def github_auth(request):
    template_html = 'account/login.html'

    # 如果申请登陆页面成功后，就会返回code和state(被坑了好久)
    if 'code' not in request.GET:
        return render(request,template_html)

    code = request.GET.get('code')

    # 第二步
    # 将得到的code，通过下面的url请求得到access_token
    url = 'https://github.com/login/oauth/access_token'
    data = {
        'grant_type': 'authorization_code',
        'client_id': GITHUB_CLIENTID,
        'client_secret': GITHUB_CLIENTSECRET,
        'code': code,
        'redirect_uri': GITHUB_CALLBACK,
    }

    data = urllib.parse.urlencode(data)

    # 请求参数需要bytes类型
    binary_data = data.encode('utf-8')
    print('data:', data)

    # 设置请求返回的数据类型
    headers={'Accept': 'application/json'}
    req = urllib.request.Request(url, binary_data,headers)
    print('req:', req)
    response = urllib.request.urlopen(req) 

    # json是str类型的，将bytes转成str
    result = result.decode('ascii')
    result = json.loads(result)
    access_token = result['access_token']
    # print('access_token:', access_token)

    url = 'https://api.github.com/user?access_token=%s'
     % (access_token)
    response = urllib.request.urlopen(url)
    html = response.read()
    html = html.decode('ascii')
    data = json.loads(html)
    username = data['name']
    # print('username:', username)
    password = '111111'

    # 如果不存在username，则创建
    try:
        user1 = User.objects.get(username=username)
    except:
        user2 = User.objects.create_user(username=username, 
        password=password)
        user2.save()
        profile = Profile.objects.create(user=user2)
        profile.save()

    # 登陆认证
    user = authenticate(username=username, 
    password=password)
    login(request, user)
    return HttpResponseRedirect(reverse('index'))

写在最后，谢谢下面博主提供的参考资料，：

http://qinxuye.me/article/third-party-authentication-in-django/

网上资料，还未尝试

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