Public bug reported: Glance seems to be setting the http header of Location, when no redirect is intended. The contents of the Location field are equal to that of the request.
I haven't been able to work out the reasoning of this, but it has extended consqences of some webstacks and proxies seeing the Location field, and turning it into a 302 (which glanceclient et al then follows, causing a redirect loop). Is this Location field used for anything meaningful? To contrast, another Project has seen similar behavior here: http://bitten.edgewall.org/ticket/607 Their interpenetration of RFC 2616 §14.30 is such that Glance's behavior is incompatible with the RFC. As example: >From Glance running directly: $ curl -i -X HEAD -H 'X-Auth-Token: a2dbc60c0b7641578215f4fb814ab33f' -H 'Content-Type: application/octe t-stream' -H 'User-Agent: python-glanceclient' http://{REDACTED}/v1/images/2db2f647-866c-4cb8-8bf3- 646d20f6ee4c HTTP/1.0 200 OK Date: Fri, 28 Mar 2014 12:52:40 GMT Server: WSGIServer/0.1 Python/2.7.3 Content-Type: text/html; charset=UTF-8 Content-Length: 0 x-image-meta-property-ramdisk_id: 401ec901-b01d-4bc7-96fb-660143a6d456 x-image-meta-id: 2db2f647-866c-4cb8-8bf3-646d20f6ee4c x-image-meta-deleted: False x-image-meta-container_format: ami x-image-meta-checksum: f8a2eeee2dc65b3d9b6e63678955bd83 x-image-meta-protected: False x-image-meta-min_disk: 0 x-image-meta-created_at: 2013-12-05T10:54:02 x-image-meta-size: 25165824 x-image-meta-status: active x-image-meta-is_public: True x-image-meta-min_ram: 0 x-image-meta-property-kernel_id: ff846cac-e6f6-49fc-a44e-69be33462c5b x-image-meta-owner: e72df10b1afb49d2979d75bd00074365 x-image-meta-updated_at: 2013-12-05T10:54:02 x-image-meta-disk_format: ami x-image-meta-name: cirros-0.3.1-x86_64-uec Location: http://{REDACTED}/v1/images/2db2f647-866c-4cb8-8bf3-646d20f6ee4c ETag: f8a2eeee2dc65b3d9b6e63678955bd83 x-openstack-request-id: req-77053d34-51f9-41b6-8ab1-d9693fc751d4 >From Glance running behind apache+fcgid+flup: $ curl -i \ > -X HEAD \ > -H 'X-Auth-Token: a2dbc60c0b7641578215f4fb814ab33f' \ > -H 'Content-Type: application/octet-stream' \ > -H 'User-Agent: python-glanceclient' > http://{REDACTED}/v1/images/2db2f647-866c-4cb8-8bf3-646d20f6ee4c HTTP/1.1 302 Found Date: Fri, 28 Mar 2014 12:58:28 GMT Server: Apache X-MS-Unique-Id: UzVx9ArGan4AACOJHOQAAAAF x-image-meta-property-ramdisk_id: 401ec901-b01d-4bc7-96fb-660143a6d456 x-image-meta-id: 2db2f647-866c-4cb8-8bf3-646d20f6ee4c x-image-meta-deleted: False x-image-meta-container_format: ami x-image-meta-checksum: f8a2eeee2dc65b3d9b6e63678955bd83 x-image-meta-protected: False x-image-meta-min_disk: 0 x-image-meta-created_at: 2013-12-05T10:54:02 x-image-meta-size: 25165824 x-image-meta-status: active x-image-meta-is_public: True x-image-meta-min_ram: 0 x-image-meta-property-kernel_id: ff846cac-e6f6-49fc-a44e-69be33462c5b x-image-meta-owner: e72df10b1afb49d2979d75bd00074365 x-image-meta-updated_at: 2013-12-05T10:54:02 x-image-meta-disk_format: ami x-image-meta-name: cirros-0.3.1-x86_64-uec ETag: f8a2eeee2dc65b3d9b6e63678955bd83 x-openstack-request-id: req-f0506f3d-c510-4a3f-9464-a37c82513811 Location: http://{REDACTED}/v1/images/2db2f647-866c-4cb8-8bf3-646d20f6ee4c Content-Type: text/html; charset=iso-8859-1 ** Affects: glance Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to Glance. https://bugs.launchpad.net/bugs/1299095 Title: Location header is set on HTTP 200 Status in OpenStack Image Registry and Delivery Service (Glance): New Bug description: Glance seems to be setting the http header of Location, when no redirect is intended. The contents of the Location field are equal to that of the request. I haven't been able to work out the reasoning of this, but it has extended consqences of some webstacks and proxies seeing the Location field, and turning it into a 302 (which glanceclient et al then follows, causing a redirect loop). Is this Location field used for anything meaningful? To contrast, another Project has seen similar behavior here: http://bitten.edgewall.org/ticket/607 Their interpenetration of RFC 2616 §14.30 is such that Glance's behavior is incompatible with the RFC. As example: From Glance running directly: $ curl -i -X HEAD -H 'X-Auth-Token: a2dbc60c0b7641578215f4fb814ab33f' -H 'Content-Type: application/octe t-stream' -H 'User-Agent: python-glanceclient' http://{REDACTED}/v1/images/2db2f647-866c-4cb8-8bf3- 646d20f6ee4c HTTP/1.0 200 OK Date: Fri, 28 Mar 2014 12:52:40 GMT Server: WSGIServer/0.1 Python/2.7.3 Content-Type: text/html; charset=UTF-8 Content-Length: 0 x-image-meta-property-ramdisk_id: 401ec901-b01d-4bc7-96fb-660143a6d456 x-image-meta-id: 2db2f647-866c-4cb8-8bf3-646d20f6ee4c x-image-meta-deleted: False x-image-meta-container_format: ami x-image-meta-checksum: f8a2eeee2dc65b3d9b6e63678955bd83 x-image-meta-protected: False x-image-meta-min_disk: 0 x-image-meta-created_at: 2013-12-05T10:54:02 x-image-meta-size: 25165824 x-image-meta-status: active x-image-meta-is_public: True x-image-meta-min_ram: 0 x-image-meta-property-kernel_id: ff846cac-e6f6-49fc-a44e-69be33462c5b x-image-meta-owner: e72df10b1afb49d2979d75bd00074365 x-image-meta-updated_at: 2013-12-05T10:54:02 x-image-meta-disk_format: ami x-image-meta-name: cirros-0.3.1-x86_64-uec Location: http://{REDACTED}/v1/images/2db2f647-866c-4cb8-8bf3-646d20f6ee4c ETag: f8a2eeee2dc65b3d9b6e63678955bd83 x-openstack-request-id: req-77053d34-51f9-41b6-8ab1-d9693fc751d4 From Glance running behind apache+fcgid+flup: $ curl -i \ > -X HEAD \ > -H 'X-Auth-Token: a2dbc60c0b7641578215f4fb814ab33f' \ > -H 'Content-Type: application/octet-stream' \ > -H 'User-Agent: python-glanceclient' http://{REDACTED}/v1/images/2db2f647-866c-4cb8-8bf3-646d20f6ee4c HTTP/1.1 302 Found Date: Fri, 28 Mar 2014 12:58:28 GMT Server: Apache X-MS-Unique-Id: UzVx9ArGan4AACOJHOQAAAAF x-image-meta-property-ramdisk_id: 401ec901-b01d-4bc7-96fb-660143a6d456 x-image-meta-id: 2db2f647-866c-4cb8-8bf3-646d20f6ee4c x-image-meta-deleted: False x-image-meta-container_format: ami x-image-meta-checksum: f8a2eeee2dc65b3d9b6e63678955bd83 x-image-meta-protected: False x-image-meta-min_disk: 0 x-image-meta-created_at: 2013-12-05T10:54:02 x-image-meta-size: 25165824 x-image-meta-status: active x-image-meta-is_public: True x-image-meta-min_ram: 0 x-image-meta-property-kernel_id: ff846cac-e6f6-49fc-a44e-69be33462c5b x-image-meta-owner: e72df10b1afb49d2979d75bd00074365 x-image-meta-updated_at: 2013-12-05T10:54:02 x-image-meta-disk_format: ami x-image-meta-name: cirros-0.3.1-x86_64-uec ETag: f8a2eeee2dc65b3d9b6e63678955bd83 x-openstack-request-id: req-f0506f3d-c510-4a3f-9464-a37c82513811 Location: http://{REDACTED}/v1/images/2db2f647-866c-4cb8-8bf3-646d20f6ee4c Content-Type: text/html; charset=iso-8859-1 To manage notifications about this bug go to: https://bugs.launchpad.net/glance/+bug/1299095/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : [email protected] Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
