【发布时间】：2018-04-10 10:33:06
【问题描述】：
我无法访问 twitter api。它给出 400 错误请求。以前它给出未经授权的例外。有人可以帮我弄清楚我做错了什么吗？我正在为图像上传编写此代码。我想我会先尝试使用常规的 post 方法，然后添加文件上传但卡在 Bad request
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)
【问题讨论】：
-
检查响应正文，通常包含更详细的错误消息。
-
感谢 Cbroe，{"errors":[{"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，或者您正在请求由于权限而被禁止的数据。昨天我碰巧用无效的令牌访问了不同的服务。我希望这个提示有所帮助。