Question

我在Apache下使用ssl进行肥皂服务，suds在没有ssl的情况下工作我有客户端证书（my.crt和user.p12文件）我需要如何配置suds客户端以使其与https服务一起使用？

没有证书我看到了

urllib2.URLError: <urlopen error [Errno 1] _ssl.c:499: error:14094410:SSL routines:SSL3_READ_BYTES:sslv3 alert handshake failure>

Answer 1

听起来您想要使用客户端证书进行身份验证，而不是像某些评论中所述的服务器证书。我有同样的问题，并能够为SUDS编写自定义传输。这是适用于我的代码。

您需要PEM格式的证书才能使用此功能; OpenSSL可以轻松执行此转换，但我不记得确切的语法。

import urllib2, httplib, socket
from suds.client import Client
from suds.transport.http import HttpTransport, Reply, TransportError

class HTTPSClientAuthHandler(urllib2.HTTPSHandler):
    def __init__(self, key, cert):
        urllib2.HTTPSHandler.__init__(self)
        self.key = key
        self.cert = cert

    def https_open(self, req):
        #Rather than pass in a reference to a connection class, we pass in
        # a reference to a function which, for all intents and purposes,
        # will behave as a constructor
        return self.do_open(self.getConnection, req)

    def getConnection(self, host, timeout=300):
        return httplib.HTTPSConnection(host,
                                       key_file=self.key,
                                       cert_file=self.cert)

class HTTPSClientCertTransport(HttpTransport):
    def __init__(self, key, cert, *args, **kwargs):
        HttpTransport.__init__(self, *args, **kwargs)
        self.key = key
        self.cert = cert

    def u2open(self, u2request):
        """
        Open a connection.
        @param u2request: A urllib2 request.
        @type u2request: urllib2.Requet.
        @return: The opened file-like urllib2 object.
        @rtype: fp
        """
        tm = self.options.timeout
        url = urllib2.build_opener(HTTPSClientAuthHandler(self.key, self.cert))
        if self.u2ver() < 2.6:
            socket.setdefaulttimeout(tm)
            return url.open(u2request)
        else:
            return url.open(u2request, timeout=tm)

# These lines enable debug logging; remove them once everything works.
import logging
logging.basicConfig(level=logging.INFO)
logging.getLogger('suds.client').setLevel(logging.DEBUG)
logging.getLogger('suds.transport').setLevel(logging.DEBUG)

c = Client('https://YOUR_URL_HERE',
    transport = HTTPSClientCertTransport('PRIVATE_KEY.pem',
                                         'CERTIFICATE_CHAIN.pem'))
print c

Answer 2

另一种解决方法是使用请求库作为传输，它更好地支持ssl。这就是我现在使用suds通过https访问SOAP服务的方法： -

import requests
from suds.transport.http import HttpAuthenticated
from suds.transport import Reply, TransportError

class RequestsTransport(HttpAuthenticated):
    def __init__(self, **kwargs):
        self.cert = kwargs.pop('cert', None)
        # super won't work because not using new style class
        HttpAuthenticated.__init__(self, **kwargs)

    def send(self, request):
        self.addcredentials(request)
        resp = requests.post(request.url, data=request.message,
                             headers=request.headers, cert=self.cert)
        result = Reply(resp.status_code, resp.headers, resp.content)
        return result

然后你可以将suds客户端实例化为： -

headers = {"Content-TYpe" : "text/xml;charset=UTF-8",
           "SOAPAction" : ""}
t = RequestsTransport(cert='/path/to/cert', **credentials)
client = Client(wsdl_uri, location=send_url, headers=headers,
                transport=t))

<强>更新

我们现在正在使用Zeep，其下方使用requests。

Answer 3

根据@ k4ml的答案，我只添加了允许使用证书获取WSDL的open()。

此方法应在尝试获取HTTPS服务后面提供的WSDL（在客户端创建时）时修复suds.transport.TransportError: HTTP Error 403: Forbidden。

import requests
from suds.transport.http import HttpAuthenticated
from suds.transport import Reply, TransportError

class RequestsTransport(HttpAuthenticated):
    def __init__(self, **kwargs):
        self.cert = kwargs.pop('cert', None)
        # super won't work because not using new style class
        HttpAuthenticated.__init__(self, **kwargs)

    def open(self, request):
        """
        Fetches the WSDL using cert.
        """
        self.addcredentials(request)
        resp = requests.get(request.url, data=request.message,
                             headers=request.headers, cert=self.cert)
        result = io.StringIO(resp.content.decode('utf-8'))
        return result

    def send(self, request):
        """
        Posts to service using cert.
        """
        self.addcredentials(request)
        resp = requests.post(request.url, data=request.message,
                             headers=request.headers, cert=self.cert)
        result = Reply(resp.status_code, resp.headers, resp.content)
        return result

旁注，我也建议编辑k4ml的答案，但它可能需要很长时间才能获得批准。

Answer 4

使用cert +密钥扩展@ k4ml解决方案这将解决以下异常：

requests.exceptions.SSLError: [SSL] PEM lib (_ssl.c:2599)

解决方案：

import requests

from suds.client import Client
from suds.transport.http import HttpAuthenticated
from suds.transport import Reply, TransportError


class RequestsTransport(HttpAuthenticated):

    def __init__(self, **kwargs):
        self.cert = kwargs.pop('cert', None)
        HttpAuthenticated.__init__(self, **kwargs)

    def send(self, request):
        self.addcredentials(request)
        resp = requests.post(
            request.url,
            data=request.message,
            headers=request.headers,
            cert=self.cert,
            verify=True
        )
        result = Reply(resp.status_code, resp.headers, resp.content)
        return result



t = RequestsTransport(cert=('<your cert.pem path>', 'your key.pem path'))
headers = {"Content-Type": "text/xml;charset=UTF-8", "SOAPAction": ""}
client = Client(wsdl_url, headers=headers, transport=t)

Answer 5

SSL安全功能是自动启用python 2.7.9+，它打破了suds和其他python库。我正在分享一个补丁，可以解决这个问题：

找到suds库并用suds / trasnport / http.py文件替换u2handlers函数，其中包含以下行：

import ssl
def u2handlers(self):
        """
        Get a collection of urllib handlers.

        @return: A list of handlers to be installed in the opener.
        @rtype: [Handler,...]

        """
        handlers = []
        unverified_context = ssl.create_default_context()
        unverified_context.check_hostname = False
        unverified_context.verify_mode = ssl.CERT_NONE
        unverified_handler = urllib2.HTTPSHandler(context=unverified_context)
        handlers.append(unverified_handler)
        handlers.append(urllib2.ProxyHandler(self.proxy))
        #handlers.append(urllib2.ProxyHandler(self.proxy))
        return handlers

注意：这不是推荐的方式。

使用证书通过https跳过

5 个答案: