rgw: CopyObject works with x-amz-copy-source-if-* headers

[kipdoudou]

CopyObject api support condition headers, eg x-amz-copy-source-if-match, while radosgw miss out the 'source' keyword

Fixes: https://tracker.ceph.com/issues/53945

Signed-off-by: Wang Hao wanghao72@baidu.com

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[kipdoudou]

@cbodley please review, thx

[cbodley]

ok; i wonder if we have s3test cases for these headers - a qa run should tell us 👍

[cbodley]

@kipdoudou could you please update your commit message to fix the Signed-off-by: line? the CI check is failing because it expects <>'s in Signed-off-by: Wang Hao <wanghao72@baidu.com>

[cbodley]

jenkins test make check

[cbodley]

@kipdoudou i'm afraid the Merge commits here will also prevent us from accepting this PR. can you please rebase this on top of ceph's master branch and squash this back into a single commit?

[cbodley]

passed qa after rerun:
https://pulpito.ceph.com/cbodley-2022-02-04_00:02:10-rgw-wip-cbodley-testing-distro-default-smithi/
https://pulpito.ceph.com/cbodley-2022-02-04_16:42:47-rgw-wip-cbodley-testing-distro-default-smithi/

[kipdoudou]

@kipdoudou i'm afraid the Merge commits here will also prevent us from accepting this PR. can you please rebase this on top of ceph's master branch and squash this back into a single commit?

yeah, of course. My git env has some problems yesterday, just fix it now. I recommit again, please review again, tkx @cbodley