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[Bug 1448080] [NEW] Auth token header should not be unicode

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Vincent Untz <1448080@xxxxxxxxxxxxxxxxxx>
Date: Fri, 24 Apr 2015 11:26:36 -0000
Reply-to: Bug 1448080 <1448080@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

I'm trying to create an image from an instance with non-ascii characters
in the name, by using this command:

 nova image-create e6bd72dd-ab8f-4802-8e29-faf90eeceb1c ééé

It turns out that nova-compute fails with this:

015-04-22 16:23:20.537 8401 ERROR oslo.messaging.rpc.dispatcher [req-e35df82c-d6f6-4dd0-9c16-0b399327b528 ] Exception during message handling: 'ascii' codec can't decode byte 0xc3 in position 19: ordinal not in range(128)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher Traceback (most recent call last):
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 134, in _dispatch_and_reply
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     incoming.message))
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 177, in _dispatch
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     return self._do_dispatch(endpoint, method, ctxt, args)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 123, in _do_dispatch
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     result = getattr(endpoint, method)(ctxt, **new_args)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/exception.py", line 88, in wrapped
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     payload)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/openstack/common/excutils.py", line 82, in __exit__
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/exception.py", line 71, in wrapped
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     return f(self, context, *args, **kw)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 307, in decorated_function
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     LOG.warning(msg, e, instance_uuid=instance_uuid)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/openstack/common/excutils.py", line 82, in __exit__
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 284, in decorated_function
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     return function(self, context, *args, **kwargs)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 335, in decorated_function
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     kwargs['instance'], e, sys.exc_info())
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/openstack/common/excutils.py", line 82, in __exit__
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 323, in decorated_function
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     return function(self, context, *args, **kwargs)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 383, in decorated_function
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     instance=instance)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/openstack/common/excutils.py", line 82, in __exit__
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 373, in decorated_function
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     *args, **kwargs)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 3039, in snapshot_instance
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     task_states.IMAGE_SNAPSHOT)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 3070, in _snapshot_instance
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     update_task_state)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/virt/libvirt/driver.py", line 1795, in snapshot
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     image_file)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/image/api.py", line 126, in update
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     purge_props=purge_props)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/image/glance.py", line 405, in update
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     _reraise_translated_image_exception(image_id)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/image/glance.py", line 403, in update
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     image_id, **image_meta)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/image/glance.py", line 232, in call
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     return getattr(client.images, method)(*args, **kwargs)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/glanceclient/v1/images.py", line 329, in update
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     resp, body = self.client.put(url, headers=hdrs, data=image_data)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/glanceclient/common/http.py", line 265, in put
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     return self._request('PUT', url, **kwargs)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/glanceclient/common/http.py", line 206, in _request
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     **kwargs)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/requests/sessions.py", line 456, in request
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     resp = self.send(prep, **send_kwargs)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/requests/sessions.py", line 559, in send
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     r = adapter.send(request, **kwargs)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/requests/adapters.py", line 342, in send
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     low_conn.endheaders()
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/httplib.py", line 914, in endheaders
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     self._send_output()
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/httplib.py", line 784, in _send_output
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     msg = "\r\n".join(self._buffer)
2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 19: ordinal not in range(128)


After digging a bit, it seems self._buffer in httplib is (simplified version):

['PUT /v1/images/e24da13e-71f6-44aa-b26d-972a3b8cf123 HTTP/1.1', 'Host:
d52-54-01-77-77-01.c19:9292', 'X-Service-Catalog: $catalog', 'Accept:
*/*', 'X-Tenant-Id: 8f39cfc227764567b339674018df250f', 'x-image-meta-
property-image_state: available', 'User-Agent: python-glanceclient', 'x
-image-meta-name: \xc3\xa9\xc3\xa9\xc3\xa9', 'x-image-meta-
container_format: ami', u'X-Auth-Token: $long-token', 'x-image-meta-
property-image_location: snapshot', 'Accept-Encoding: gzip, deflate',
'Transfer-Encoding: chunked', 'x-glance-registry-purge-props: false', 'x
-image-meta-property-ramdisk_id: a55b7c7c-9c74-4aef-9451-8b963eabf5a5',
'X-User-Id: 88a1fea444c24989bdf67980a9270bb5', 'x-image-meta-property-
kernel_id: fcaafb77-3144-4b4b-9ebe-b62e5de354bc', 'X-Identity-Status:
Confirmed', 'Content-Type: application/octet-stream', 'X-Roles:
admin,heat_stack_owner', 'x-image-meta-size: 11010048', 'x-image-meta-
is_public: False', 'x-image-meta-property-owner_id:
8f39cfc227764567b339674018df250f', 'x-image-meta-disk_format: ami', '',
'']

As you can see, the X-Auth-Token line is an unicode string. It turns out
that this indeed causes the failure:

>>> "\r\n".join([u'', 'x-image-meta-name: \xc3\xa9\xc3\xa9\xc3\xa9'])
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 19: ordinal not in range(128)

So clearly we should make sure to encode the token and not assume
anything about it.

** Affects: glance
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1448080

Title:
  Auth token header should not be unicode

Status in OpenStack Image Registry and Delivery Service (Glance):
  New

Bug description:
  I'm trying to create an image from an instance with non-ascii
  characters in the name, by using this command:

   nova image-create e6bd72dd-ab8f-4802-8e29-faf90eeceb1c ééé

  It turns out that nova-compute fails with this:

  015-04-22 16:23:20.537 8401 ERROR oslo.messaging.rpc.dispatcher [req-e35df82c-d6f6-4dd0-9c16-0b399327b528 ] Exception during message handling: 'ascii' codec can't decode byte 0xc3 in position 19: ordinal not in range(128)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher Traceback (most recent call last):
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 134, in _dispatch_and_reply
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     incoming.message))
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 177, in _dispatch
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     return self._do_dispatch(endpoint, method, ctxt, args)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/oslo/messaging/rpc/dispatcher.py", line 123, in _do_dispatch
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     result = getattr(endpoint, method)(ctxt, **new_args)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/exception.py", line 88, in wrapped
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     payload)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/openstack/common/excutils.py", line 82, in __exit__
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/exception.py", line 71, in wrapped
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     return f(self, context, *args, **kw)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 307, in decorated_function
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     LOG.warning(msg, e, instance_uuid=instance_uuid)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/openstack/common/excutils.py", line 82, in __exit__
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 284, in decorated_function
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     return function(self, context, *args, **kwargs)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 335, in decorated_function
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     kwargs['instance'], e, sys.exc_info())
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/openstack/common/excutils.py", line 82, in __exit__
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 323, in decorated_function
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     return function(self, context, *args, **kwargs)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 383, in decorated_function
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     instance=instance)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/openstack/common/excutils.py", line 82, in __exit__
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     six.reraise(self.type_, self.value, self.tb)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 373, in decorated_function
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     *args, **kwargs)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 3039, in snapshot_instance
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     task_states.IMAGE_SNAPSHOT)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/compute/manager.py", line 3070, in _snapshot_instance
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     update_task_state)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/virt/libvirt/driver.py", line 1795, in snapshot
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     image_file)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/image/api.py", line 126, in update
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     purge_props=purge_props)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/image/glance.py", line 405, in update
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     _reraise_translated_image_exception(image_id)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/image/glance.py", line 403, in update
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     image_id, **image_meta)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/nova/image/glance.py", line 232, in call
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     return getattr(client.images, method)(*args, **kwargs)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/glanceclient/v1/images.py", line 329, in update
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     resp, body = self.client.put(url, headers=hdrs, data=image_data)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/glanceclient/common/http.py", line 265, in put
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     return self._request('PUT', url, **kwargs)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/glanceclient/common/http.py", line 206, in _request
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     **kwargs)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/requests/sessions.py", line 456, in request
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     resp = self.send(prep, **send_kwargs)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/requests/sessions.py", line 559, in send
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     r = adapter.send(request, **kwargs)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/site-packages/requests/adapters.py", line 342, in send
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     low_conn.endheaders()
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/httplib.py", line 914, in endheaders
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     self._send_output()
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher   File "/usr/lib64/python2.6/httplib.py", line 784, in _send_output
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher     msg = "\r\n".join(self._buffer)
  2015-04-22 16:23:20.537 8401 TRACE oslo.messaging.rpc.dispatcher UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 19: ordinal not in range(128)

  
  After digging a bit, it seems self._buffer in httplib is (simplified version):

  ['PUT /v1/images/e24da13e-71f6-44aa-b26d-972a3b8cf123 HTTP/1.1',
  'Host: d52-54-01-77-77-01.c19:9292', 'X-Service-Catalog: $catalog',
  'Accept: */*', 'X-Tenant-Id: 8f39cfc227764567b339674018df250f', 'x
  -image-meta-property-image_state: available', 'User-Agent: python-
  glanceclient', 'x-image-meta-name: \xc3\xa9\xc3\xa9\xc3\xa9', 'x
  -image-meta-container_format: ami', u'X-Auth-Token: $long-token', 'x
  -image-meta-property-image_location: snapshot', 'Accept-Encoding:
  gzip, deflate', 'Transfer-Encoding: chunked', 'x-glance-registry-
  purge-props: false', 'x-image-meta-property-ramdisk_id: a55b7c7c-
  9c74-4aef-9451-8b963eabf5a5', 'X-User-Id:
  88a1fea444c24989bdf67980a9270bb5', 'x-image-meta-property-kernel_id:
  fcaafb77-3144-4b4b-9ebe-b62e5de354bc', 'X-Identity-Status: Confirmed',
  'Content-Type: application/octet-stream', 'X-Roles:
  admin,heat_stack_owner', 'x-image-meta-size: 11010048', 'x-image-meta-
  is_public: False', 'x-image-meta-property-owner_id:
  8f39cfc227764567b339674018df250f', 'x-image-meta-disk_format: ami',
  '', '']

  As you can see, the X-Auth-Token line is an unicode string. It turns
  out that this indeed causes the failure:

  >>> "\r\n".join([u'', 'x-image-meta-name: \xc3\xa9\xc3\xa9\xc3\xa9'])
  Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
  UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 19: ordinal not in range(128)

  So clearly we should make sure to encode the token and not assume
  anything about it.

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Follow ups

[Bug 1448080] Re: Auth token header should not be unicode
From: Brian Rosmaita, 2018-03-19
[Bug 1448080] [NEW] Auth token header should not be unicode
From: Vincent Untz, 2015-04-24
References

[Bug 1448080] [NEW] Auth token header should not be unicode
From: Vincent Untz, 2015-04-24