【发布时间】:2011-11-10 16:32:26
【问题描述】:
到目前为止,我一直在使用库来处理 OAuth,但最近我一直在深入挖掘以了解底层 OAuth 过程。目前,我正在尝试使用 OAuth 1.0a 和这个简单的代码连接到 Tumblr API v2:
import urllib, urllib2, time, random, hmac, base64, hashlib
def makenonce():
random_number = ''.join( str( random.randint( 0, 9 ) ) for _ in range( 40 ) )
m = hashlib.md5( str( time.time() ) + str( random_number ) )
return m.hexdigest()
def encodeparams(s):
return urllib.quote( str( s ), safe='~' )
# Actual key and secret from a test app created using a dummy Tumblr account
consumer_key = '97oAujQhSaQNv4XDXzCjdZlOxwNyhobmDwmueJBCHWsFFsW7Ly'
consumer_secret = '5q1dpF659SOgSUb0Eo52aAyoud8N8QOuJu6enCG92aDR6WoMlf'
#oauth URLs
request_tokenURL = 'http://www.tumblr.com/oauth/request_token'
#oauth params
oauth_parameters = {
'oauth_consumer_key' : consumer_key,
'oauth_nonce' : makenonce(),
'oauth_timestamp' : str(int(time.time())),
'oauth_signature_method' : "HMAC-SHA1",
'oauth_version' : "1.0"
}
normalized_parameters = encodeparams( '&'.join( ['%s=%s' % ( encodeparams( str( k ) ), encodeparams( str( oauth_parameters[k] ) ) ) for k in sorted( oauth_parameters )] ) )
# Since I'm focusing only on getting the request token for now, I set this to POST.
normalized_http_method = 'POST'
normalized_http_url = encodeparams( request_tokenURL )
signature_base_string = '&'.join( [normalized_http_method, normalized_http_url, normalized_parameters] )
oauth_key = consumer_secret + '&'
hashed = hmac.new( oauth_key, signature_base_string, hashlib.sha1 )
oauth_parameters['oauth_signature'] = base64.b64encode( hashed.digest() )
oauth_header = 'Authorization: OAuth realm="http://www.tumblr.com",' + 'oauth_nonce="' + oauth_parameters['oauth_nonce'] + '",' + 'oauth_timestamp="' + oauth_parameters['oauth_timestamp'] + '",' + 'oauth_consumer_key="' + oauth_parameters['oauth_consumer_key'] + '",' + 'oauth_signature_method="HMAC-SHA1",oauth_version="1.0",oauth_signature="' + oauth_parameters['oauth_signature'] +'"'
# sample oauth_header generated by the code above:
# Authorization: OAuth realm="http://www.tumblr.com",oauth_nonce="c200a0e06f30b84b851ac3e99a71054b",oauth_timestamp="1315231855",oauth_consumer_key="97oAujQhSaQNv4XDXzCjdZlOxwNyhobmDwmueJBCHWsFFsW7Ly",oauth_signature_method="HMAC-SHA1",oauth_version="1.0",oauth_signature="kVAlmwolCX0WJIvTF9MB2UV5rnU="
req = urllib2.Request( request_tokenURL )
req.add_header( 'Authorization', oauth_header )
# If all goes well, Tumblr should send me the oauth request token.
print urllib2.urlopen( req ).read()
Tumblr 返回 HTTP 错误 401:未授权,而不是 OAuth 请求令牌。
我尝试过但没有成功的事情:
- 将
oauth_version从“1.0”更改为“1.0a”,然后又改回来。 - OAuth 指南要求在
consumer_secret末尾添加“&”以获得oauth_key。我稍后尝试删除“&”,看看是否有任何不同。 - 检查 OAuth 参数是否已排序,并且已排序。
- 没有将字符串“Authorization:”添加到
oauth_header,稍后再添加。两者都没有任何区别。
我哪里出错了?
【问题讨论】:
-
你可能不应该把你的密钥放在这里
-
@Cal 这是专门为这个问题制作的虚拟应用程序。它就在 cmets 中:
// Actual key and secret from a test app created using a **dummy** Tumblr account.