Python/Django使用Google API的Oauth示例
我正在尝试用Python让Oauth在Google API上工作。我试过了不同的Oauth库，比如oauth、oauth2和djanog-oauth，但是都没能成功（包括那些示例代码）。
为了调试Oauth，我使用了Google的Oauth Playground，并且我研究了API和Oauth文档。
在某些库中，我在获取正确的签名时遇到困难，而在其他库中，我则在将请求令牌转换为授权令牌时遇到麻烦。如果有人能给我展示一个使用上述库的Google API的工作示例，那将对我帮助很大。
编辑：我最开始的问题没有得到任何回答，所以我添加了我的代码。这个代码不工作的原因可能有两个：
1) Google没有授权我的请求令牌，但我不太确定怎么检测这一点
2) 访问令牌的签名无效，但我想知道Google期望哪些Oauth参数，因为我在第一阶段能够生成一个正确的签名。
这是使用oauth2.py编写的，适用于Django，因此使用了HttpResponseRedirect。
REQUEST_TOKEN_URL = 'https://www.google.com/accounts/OAuthGetRequestToken'
AUTHORIZATION_URL = 'https://www.google.com/accounts/OAuthAuthorizeToken'
ACCESS_TOKEN_URL = 'https://www.google.com/accounts/OAuthGetAccessToken'
CALLBACK = 'http://localhost:8000/mappr/mappr/oauth/' #will become real server when deployed
OAUTH_CONSUMER_KEY = 'anonymous'
OAUTH_CONSUMER_SECRET = 'anonymous'
signature_method = oauth.SignatureMethod_HMAC_SHA1()
consumer = oauth.Consumer(key=OAUTH_CONSUMER_KEY, secret=OAUTH_CONSUMER_SECRET)
client = oauth.Client(consumer)
request_token = oauth.Token('','') #hackish way to be able to access the token in different functions, I know this is bad, but I just want it to get working in the first place :)
def authorize(request):
if request.GET == {}:
tokens = OAuthGetRequestToken()
return HttpResponseRedirect(AUTHORIZATION_URL + '?' + tokens)
elif request.GET['oauth_verifier'] != '':
oauth_token = request.GET['oauth_token']
oauth_verifier = request.GET['oauth_verifier']
OAuthAuthorizeToken(oauth_token)
OAuthGetAccessToken(oauth_token, oauth_verifier)
#I need to add a Django return object but I am still debugging other phases.
def OAuthGetRequestToken():
print '*** OUTPUT OAuthGetRequestToken ***'
params = {
'oauth_consumer_key': OAUTH_CONSUMER_KEY,
'oauth_nonce': oauth.generate_nonce(),
'oauth_signature_method': 'HMAC-SHA1',
'oauth_timestamp': int(time.time()), #The timestamp should be expressed in number of seconds after January 1, 1970 00:00:00 GMT.
'scope': 'https://www.google.com/analytics/feeds/',
'oauth_callback': CALLBACK,
'oauth_version': '1.0'
}
# Sign the request.
req = oauth.Request(method="GET", url=REQUEST_TOKEN_URL, parameters=params)
req.sign_request(signature_method, consumer, None)
tokens =client.request(req.to_url())[1]
params = ConvertURLParamstoDictionary(tokens)
request_token.key = params['oauth_token']
request_token.secret = params['oauth_token_secret']
return tokens
def OAuthAuthorizeToken(oauth_token):
print '*** OUTPUT OAuthAuthorizeToken ***'
params ={
'oauth_token' :oauth_token,
'hd': 'default'
}
req = oauth.Request(method="GET", url=AUTHORIZATION_URL, parameters=params)
req.sign_request(signature_method, consumer, request_token)
response =client.request(req.to_url())
print response #for debugging purposes
def OAuthGetAccessToken(oauth_token, oauth_verifier):
print '*** OUTPUT OAuthGetAccessToken ***'
params = {
'oauth_consumer_key': OAUTH_CONSUMER_KEY,
'oauth_token': oauth_token,
'oauth_verifier': oauth_verifier,
'oauth_token_secret': request_token.secret,
'oauth_signature_method': 'HMAC-SHA1',
'oauth_timestamp': int(time.time()),
'oauth_nonce': oauth.generate_nonce(),
'oauth_version': '1.0',
}
req = oauth.Request(method="GET", url=ACCESS_TOKEN_URL, parameters=params)
req.sign_request(signature_method, consumer, request_token)
response =client.request(req.to_url())
print response
return req
def ConvertURLParamstoDictionary(tokens):
params = {}
tokens = tokens.split('&')
for token in tokens:
token = token.split('=')
params[token[0]] = token[1]
return params
6 个回答
3
你有没有试过官方的 gdata python API 呢？它里面自带了一个 oauth 客户端，可以帮你处理 oauth 的复杂调用，让这些事情变得简单很多。你可以在这里找到它：http://code.google.com/p/gdata-python-client/
5
这对我有效。
def login(request):
consumer_key = 'blabla'
consumer_secret = 'blabla'
callback = request.GET['callback']
request_token_url = 'https://api.linkedin.com/uas/oauth/requestToken'
authorize_url = 'https://api.linkedin.com/uas/oauth/authorize'
access_token_url = 'https://api.linkedin.com/uas/oauth/accessToken'
consumer = oauth.Consumer(consumer_key, consumer_secret)
if ('oauth_verifier' not in request.GET):
client = oauth.Client(consumer)
body = 'oauth_callback=http://shofin.com/login?callback='+callback+"&placeId="+request.GET[placeId]
resp,content = client.request(request_token_url,"POST",headers={'Content-Type':'application/x-www-form-urlencoded'},body=body)
request_token = dict(urlparse.parse_qsl(content))
loginUrl = authorize_url+"?oauth_token="+request_token['oauth_token']
cache.set(request_token['oauth_token'],request_token['oauth_token_secret'])
return HttpResponseRedirect(loginUrl)
elif request.GET['oauth_verifier']:
token = oauth.Token(request.GET['oauth_token'],cache.get(request.GET['oauth_token']))
token.set_verifier(request.GET['oauth_verifier'])
client = oauth.Client(consumer, token)
resp,content = client.request(access_token_url,"POST",{})
access_token = dict(urlparse.parse_qsl(content))
token = oauth.Token(key=access_token['oauth_token'], secret=access_token['oauth_token_secret'])
client = oauth.Client(consumer, token)
resp,json = client.request("http://api.linkedin.com/v1/people/~?format=json")
return render_to_response(callback,{'placeId':request.GET['placeId'],'userId':userId,'folkId':folkId)
6