Python SOAP客户端,使用suds的WSDL调用为HTTP基本身份验证提供了传输错误401未授权

Question

背景

我正在使用python 2.7.3构建一个SOAP客户端,并使用Canonical提供的suds 0.4.1库.服务器正在使用HTTPS进行基本身份验证.

问题

无法在服务器上传递身份验证,甚至无法获取WSDL.我收到以下错误:

suds.transport.TransportError:HTTP错误401:未经授权

尝试解决方案和代码

我已经尝试了suds文档中描述的两种身份验证方法,但仍然client = Client(url, ...)在行上面得到了错误.我已经确认了在Web浏览器中连接的凭据和功能,这很好.

声明之后wsdl_url,username和password,我想:

client = Client(url=wsdl_url, username=username, password=password)

# as well as:

t = HttpAuthenticated(username=username, password=password)
client = Client(url=wsdl_url, transport=t)

# and even:

t = HttpAuthenticated(username=username, password=password)
t.handler = urllib2.HTTPBasicAuthHandler(t.pm)
t.urlopener = urllib2.build_opener(t.handler)
client = Client(url=wsdl_url, transport=t)

最后一个似乎至少在另一个关于使用suds进行HTTP身份验证的问题中从WSDL URL获得响应.

其他说明

这个问题与这个类似的问题截然不同,因为我正在使用:

from suds.transport.https import HttpAuthenticated
# not:
# from suds.transport.http import HttpAuthenticated

从Traceback中,这个client = Client(url, ...)电话明显点击了suds.transport.https.py:

File "/usr/lib/python2.7/dist-packages/suds/client.py", line 112, in __init__ self.wsdl = reader.open(url)
File "/usr/lib/python2.7/dist-packages/suds/reader.py", line 152, in open d = self.fn(url, self.options)
File "/usr/lib/python2.7/dist-packages/suds/wsdl.py", line 136, in __init__ d = reader.open(url)
File "/usr/lib/python2.7/dist-packages/suds/reader.py", line 79, in open d = self.download(url)
File "/usr/lib/python2.7/dist-packages/suds/reader.py", line 95, in download fp = self.options.transport.open(Request(url))
File "/usr/lib/python2.7/dist-packages/suds/transport/https.py", line 60, in open return  HttpTransport.open(self, request)
File "/usr/lib/python2.7/dist-packages/suds/transport/http.py", line 64, in open raise TransportError(str(e), e.code, e.fp)

我错过了什么？

Answer 1

suds没有向请求添加授权标头,所以我手动设置:

import base64

# code excluded for brevity

base64string = base64.encodestring('%s:%s' % (username, password)).replace('\n', '')
authenticationHeader = {
    "SOAPAction" : "ActionName",
    "Authorization" : "Basic %s" % base64string
}
client = Client(url=wsdl_url, headers=authenticationHeader)