Univention Bugzilla – Bug 53465
[5.0] UMC-Caching
Last modified: 2021-11-10 11:58:53 CET
We need to forward-port the patch. +++ This bug was initially created as a clone of Bug #37720 +++ When we build e.g. the UMC-frontend package the files in the deb archive will have mtime=$(build-time). When dpkg installs the package the mtime from these files are taken instead of the extraction time. When apache serves the files now it uses the mtime value with the build time. Especially internally it is strange behavior as we are often working with VM's with set time in the past. When the file-mtime is in the future apache takes the current system time as Last-Modified value. → This prevents firefox from invalidating its cache. Maybe we should trigger a touch over all UMC-apache-files in the postinst of UMC. We probably can remove the $js-hash$ then, too and let apache handle caching completely (I suspect apache to do it correctly, our caching-workarounds probably exists due to this described problem. Chromium+Firefox can handle Last-Modified, and in UCS 4.0 we are supporting only IE>=9 → that should also work). curl -i http://$host/univention-management-console/login.html | grep -i -e Etag -e Last-Modified date --set '2014-12-13 14:15:16+0200'
Created a merge request: https://git.knut.univention.de/univention/ucs/-/merge_requests/110 QA: REOPEN for merging. Let's wait until Bug #37720 is verified.
univention-web.yaml 60d4cd13c6b3 | Bug #53465: replace Expire-caching with Cache-Control "must-revalidate, max-age=..." univention-web (4.0.1-42) 03ad18f4a421 | Bug #53465: ucslint: debian/changelog: not strict-monotonically increasing by time a2234ba78e79 | Bug #53465: enable conditional requests for gzip compressed requests 08feb4901931 | Bug #53465: call umc_frontend_new_hash also in univention-web postinst 60d4cd13c6b3 | Bug #53465: replace Expire-caching with Cache-Control "must-revalidate, max-age=..." univention-management-console.yaml 42f754b44af6 | Bug #53465: set explicit caching control in maintenance mode univention-management-console (12.0.12-16) 03ad18f4a421 | Bug #53465: ucslint: debian/changelog: not strict-monotonically increasing by time 42f754b44af6 | Bug #53465: set explicit caching control in maintenance mode univention-lib.yaml 7573485377ec | Bug #53465: touch all HTML/JS/CSS files in postinst via umc_frontend_new_hash univention-lib (9.0.11-6) 03ad18f4a421 | Bug #53465: ucslint: debian/changelog: not strict-monotonically increasing by time 7573485377ec | Bug #53465: touch all HTML/JS/CSS files in postinst via umc_frontend_new_hash
OK: code is ported OK: same behaviour as 4.4 OK: yaml -> verified
<https://errata.software-univention.de/#/?erratum=5.0x114> <https://errata.software-univention.de/#/?erratum=5.0x115> <https://errata.software-univention.de/#/?erratum=5.0x116>