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	Prevent Authorization header for presigned LFS urls (#21531)
Fixes #21525 Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
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		@@ -438,14 +438,21 @@ func buildObjectResponse(rc *requestContext, pointer lfs_module.Pointer, downloa
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		}
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		if download {
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			rep.Actions["download"] = &lfs_module.Link{Href: rc.DownloadLink(pointer), Header: header}
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			var link *lfs_module.Link
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			if setting.LFS.ServeDirect {
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				// If we have a signed url (S3, object storage), redirect to this directly.
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				u, err := storage.LFS.URL(pointer.RelativePath(), pointer.Oid)
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				if u != nil && err == nil {
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					rep.Actions["download"] = &lfs_module.Link{Href: u.String(), Header: header}
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					// Presigned url does not need the Authorization header
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					// https://github.com/go-gitea/gitea/issues/21525
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					delete(header, "Authorization")
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					link = &lfs_module.Link{Href: u.String(), Header: header}
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				}
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			}
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			if link == nil {
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				link = &lfs_module.Link{Href: rc.DownloadLink(pointer), Header: header}
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			}
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			rep.Actions["download"] = link
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		}
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		if upload {
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			rep.Actions["upload"] = &lfs_module.Link{Href: rc.UploadLink(pointer), Header: header}
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