Bug 912882
| Summary: | rhn-migrate-classic-to-rhsm fails to connect with xmlrpclib error when going through a proxy. | ||||||
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| Product: | Red Hat Enterprise Linux 5 | Reporter: | Alex Wood <awood> | ||||
| Component: | subscription-manager | Assignee: | Alex Wood <awood> | ||||
| Status: | CLOSED WONTFIX | QA Contact: | IDM QE LIST <seceng-idm-qe-list> | ||||
| Severity: | unspecified | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 5.10 | CC: | bkearney, jgalipea, jsefler | ||||
| Target Milestone: | beta | ||||||
| Target Release: | 5.10 | ||||||
| Hardware: | Unspecified | ||||||
| OS: | Unspecified | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2013-05-10 15:25:54 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Bug Depends On: | |||||||
| Bug Blocks: | 840995, 920191 | ||||||
| Attachments: |
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This bug is closely related to bug #619276. To paraphrase David Malcolm in comment 11 of that bug: The xmlrpclib Transport.request() (in Python 2.7 request() delegates calls to single_request()) method calls make_connection() which returns a connection object (httplib.HTTP prior to 2.7 and httplib.HTTPConnection in 2.7) Eventually a call is made on the object returned from make_connection(). Python's xmlrpclib has changed from calling getreply() to getresponse() in r73638 [1] [2]. httplib.HTTP does not have a getresponse() method. It does have a getreply() method (which delegates to an underlying connection instance's getresponse(), with some wrapper logic). Since we were overriding make_connection() and returning an httplib.HTTP object, we broke when xmlrpclib in 2.7 tried to call getresponse(). The fix is to discriminate between 2.7 and earlier versions. I have elected to do that by looking for the single_request() method which doesn't exist in pre-2.7. This technique is the same as the one used by koji in commit 7876bc06 [3]. [1] http://svn.python.org/view?view=rev&revision=73638 [2] http://svn.python.org/view/python/trunk/Lib/xmlrpclib.py?r1=73638&r2=73637&pathrev=73638 [3] http://git.fedorahosted.org/cgit/koji/commit/?id=7876bc06fe9151fb521409c2e8f6a3535e1eacfe This request was evaluated by Red Hat Product Management for inclusion in a Red Hat Enterprise Linux release. Product Management has requested further review of this request by Red Hat Engineering, for potential inclusion in a Red Hat Enterprise Linux release for currently deployed products. This request is not yet committed for inclusion in a release. This bug should be fixed as a side effect of fixing bug 885130 since we are no longer using xmlrpclib. Created attachment 746210 [details]
A fix for this issue
A fix for this issue for posterity's sake.
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Description of problem: The xmlrpclib library changed in Python 2.7 and rhn-migrate-classic-to-rhsm no longer works when going through a proxy. How reproducible: Always Steps to Reproduce: 1. Set up RHN to use a proxy. You need to edit the proxy related values in /etc/sysconfig/rhn/up2date. 2. Register to RHN using rhnreg_ks. 3. Attempt a migration. Actual results: 2013-02-19 16:54:19,512 [INFO] @migrate.py:340 - Using proxy auto-services.user sys.redhat.com:3128 for RHN API methods 2013-02-19 16:54:19,537 [ERROR] @migrate.py:348 - Traceback (most recent call l ast): File "/root/devel/subscription-manager/src/subscription_manager/migrate/migrat e.py", line 345, in connect_to_rhn sk = sc.auth.login(credentials.username, credentials.password) File "/usr/lib64/python2.7/xmlrpclib.py", line 1224, in __call__ return self.__send(self.__name, args) File "/usr/lib64/python2.7/xmlrpclib.py", line 1578, in __request verbose=self.__verbose File "/usr/lib64/python2.7/xmlrpclib.py", line 1264, in request return self.single_request(host, handler, request_body, verbose) File "/usr/lib64/python2.7/xmlrpclib.py", line 1294, in single_request response = h.getresponse(buffering=True) AttributeError: HTTP instance has no attribute 'getresponse' Expected results: A successful migration Additional info: