我在使用twitter api时遇到问题，它返回了400个不良请求

问题描述：

我无法访问twitter api。它给出了400个错误的请求。以前它给予未经授权的例外。有人可以帮我弄清楚我做错了什么？我正在编写图像上传的代码。我想我会先用普通方法后试图再要补充文件上传，但停留在错误的请求我在使用twitter api时遇到问题，它返回了400个不良请求

import oauth2 as oauth 
import json 
import urllib 
import urllib2 
from collections import namedtuple 
import time 
from hashlib import sha1 
import hmac 
import uuid 
import base64 


AUTHENTICATION="https://api.twitter.com/oauth2/token" 
REQUEST_TOKEN="https://api.twitter.com/oauth/request_token" 
AUTHORIZE_URL="https://api.twitter.com/oauth/authorize" 
ACCESS_TOKEN_URL="https://api.twitter.com/oauth/access_token" 


CONSUMER_KEY="" 
CONSUMER_SECRET="" 
ACCESS_KEY="" 
ACCESS_SECRET="" 

OAuth_Basic=namedtuple("OAuth_Basic", "oauth_consumer_key oauth_signature_method oauth_version") 
baseString=namedtuple("baseString", "timeStamp string nonce status") 
SendRequest=namedtuple("SendRequest", "method url timestamp upload") 



def basestring(oauth, access_key, body=None): 
    timestamp = str(int(time.time())) 
    nonce= base64.b64encode(str(uuid.uuid4().hex)) 
    basestring=percentencode("oauth_consumer_key") + "=" + percentencode(oauth.oauth_consumer_key) + "&" 
    basestring+=percentencode("oauth_nonce") + "=" + percentencode(nonce) + "&" 
    basestring+=percentencode("oauth_signature_method") + "=" + percentencode(oauth.oauth_signature_method) + "&" 
    basestring+=percentencode("oauth_timestamp") + "=" + percentencode(timestamp) + "&" 
    basestring+=percentencode("oauth_token") + "=" + percentencode(access_key) + "&" 
    basestring+=percentencode("oauth_version") + "=" + percentencode(oauth.oauth_version) 
    if body: 
     basestring+="&" + percentencode("status") + "=" + percentencode(body) 
    return baseString(timeStamp=timestamp, string=basestring, nonce=nonce, status=body) 

def sign_request(signature, consumer_secret, access_secret): 
    key = consumer_secret + "&" + access_secret 
    hashed = hmac.new(key, signature, sha1) 
    return hashed.digest().encode("base64").rstrip('\n') 


def signaturebasestring(request, basestr, upload=False): 
    if not upload: 
     return percentencode(request.method) + "&" + percentencode(request.url) + "&" + percentencode(basestr) 
    return percentencode(request.url) + "&" + percentencode(basestr) 


def sendrequest(s_oauth, s_basestring, s_request, s_signature): 
    oauth_header="OAuth oauth_consumer_key=\""+s_oauth.oauth_consumer_key+"\", oauth_nonce=\""+s_basestring.nonce+"\", oauth_signature=\""+percentencode(s_signature)+"\", oauth_signature_method=\""+s_oauth.oauth_signature_method+"\", oauth_timestamp=\""+s_request.timestamp+"\", oauth_token=\""+ACCESS_KEY+"\", oauth_version=\""+s_oauth.oauth_version+"\"" 
    headers = {"Authorization": oauth_header, "Content-type": "application/x-www-form-urlencoded", "Host":"api.twitter.com", "User-Agent":"OAuth gem v0.4.4", "oauth_consumer_key":s_oauth.oauth_consumer_key} 
    status = {"status":s_basestring.status} 
    encoded_args = urllib.urlencode(status) 
    req = urllib2.Request(s_request.url, encoded_args, headers) 
    try: 
     resp = urllib2.urlopen(req) 
     print resp 
    except urllib2.HTTPError, e: 
     print "httperror :" + str(e.code) 
     print e.reason 
    except urllib2.URLError, e: 
     print "urlerror :" + str(e.code) 
     print e.reason 
    except httplib.HTTPException, e: 
     print "httpexception :" + str(e.code) 
     print e.reason 


def percentencode(val): 
    return val.replace(" ", "%20").replace("!", "%21").replace("&", "%26").replace("/", "%2F").replace("=", "%3D").replace("+", "%2B").replace(",", "%2C").replace("-", "%2D").replace(".", "%2E") 

p_oauth=OAuth_Basic(oauth_consumer_key=CONSUMER_KEY, oauth_signature_method="HMAC-SHA1", oauth_version="1.0") 
p_basestring=basestring(p_oauth, ACCESS_KEY, "hello world") 
p_request = SendRequest(method="POST", url="https://api.twitter.com/1.1/statuses/update.json", timestamp=p_basestring.timeStamp, upload=False) 
signature=sign_request(signaturebasestring(p_request, p_basestring.string, False), CONSUMER_SECRET, ACCESS_SECRET) 
sendrequest(p_oauth, p_basestring, p_request, signature)

检查响应主体，通常包含更详细的错误信息。 – CBroe

感谢Cbroe，{“错误”：[{“code”：215，“message”：“Bad Authentication data。”}}} 是我得到的错误。需要弄清楚出了什么问题。 –

400通常意味着您没有正确登录，或者您正在请求因权限而被禁止访问的数据。昨天发生在我身上的是一个无效的令牌服务器。我希望提示有帮助。 – Saelyth

答

我发现的错误。百分比编码发生在小写字母，改为大写字母，一切开始工作。有几个网站帮助验证了OAuth标题。谢谢

我在使用twitter api时遇到问题，它返回了400个不良请求

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