log when setting object properties to non-ascii values

[Lin Hua Cheng]

Using non-ascii characters on the property is failing

Output:
(openstack) container set --property test=您好1 您好1
'ascii' codec can't decode byte 0xe6 in position 27: ordinal not in range(128)

property are passed as HTTP header to swift API.

HTTP header however doesn't support non-ascii characters:
http://www.w3.org/Protocols/rfc2616/rfc2616-sec2.html#sec2.2
http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html#sec4.2

Add a validation to check the property values before sending to keystone

[Steve Martinelli (stevemar)]

i whipped up a patch:

stevemar@ubuntu:/opt/stack/python-openstackclient$ openstack container set mycon2 --property "k=é" --property p=q
Cannot set properties to non-ascii values, skipping
stevemar@ubuntu:/opt/stack/python-openstackclient$ openstack container show mycon2
+--------------+---------------------------------------+
| Field | Value |
+--------------+---------------------------------------+
| account | AUTH_658ce392811b491cbe42abcf851a8e85 |
| bytes_used | 0 |
| container | mycon2 |
| object_count | 0 |
| properties | p='q' |
+--------------+---------------------------------------+

[Steve Martinelli (stevemar)]

patch: https://review.openstack.org/#/c/236741/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/236741
Committed: https://git.openstack.org/cgit/openstack/python-openstackclient/commit/?id=cfd2bf5882b72d6dbd09a1839b63ed41f3834365
Submitter: Jenkins
Branch: master

commit cfd2bf5882b72d6dbd09a1839b63ed41f3834365
Author: Steve Martinelli <email address hidden>
Date: Sun Oct 18 16:03:08 2015 -0400

    validate non-ascii values for swift properties

    skip properties that are non-ascii values, but proceed
    with properties that work. log these failed values back
    to the user.

    Change-Id: Iaca8909f4465a01c8aebfd290b1a322823702359
    Closes-Bug: 1503898