vuori opened a new issue, #12496:
URL: https://github.com/apache/trafficserver/issues/12496
When attempting to use a header_rewrite config under 10.1.0 that has a
`cond` matching on some part of `%{URL}` in `SEND_REQUEST_HDR_HOOK`, the match
never returns true. It appears that the plugin is unable to fetch the details
of the outgoing request. `%{CLIENT-URL}` works as expected.
This happens both as a global and remap plugin.
Example config where the action never happens:
```
cond %{SEND_REQUEST_HDR_HOOK}
cond %{URL:HOST} /s3-/
rm-header Range
```
Debug output (above config added in `plugin.config`):
```
[Sep 10 16:23:03.069] [ET_NET 0] DIAG: <resources.h:48 (Resources)>
(dbg_header_rewrite) Calling CTOR for Resources (InkAPI)
[Sep 10 16:23:03.069] [ET_NET 0] DIAG: <resources.cc:31 (gather)>
(header_rewrite) Building resources, hook=TS_HTTP_SEND_REQUEST_HDR_HOOK
[Sep 10 16:23:03.069] [ET_NET 0] DIAG: <resources.cc:39 (gather)>
(header_rewrite) Adding TXN client request header buffers
[Sep 10 16:23:03.069] [ET_NET 0] DIAG: <resources.cc:63 (gather)>
(header_rewrite) Processing TS_HTTP_SEND_REQUEST_HDR_HOOK
[Sep 10 16:23:03.069] [ET_NET 0] DIAG: <resources.cc:66 (gather)>
(header_rewrite) Adding TXN server request header buffers
[Sep 10 16:23:03.069] [ET_NET 0] DIAG: <resources.cc:68 (gather)>
(header_rewrite) could not gather bufp/hdr_loc for request
[Sep 10 16:23:03.069] [ET_NET 0] DIAG: <conditions.h:733 (eval)>
(header_rewrite) Evaluating GROUP()
[Sep 10 16:23:03.069] [ET_NET 0] DIAG: <conditions.cc:324 (append_value)>
(header_rewrite) Host to match is:
[Sep 10 16:23:03.069] [ET_NET 0] DIAG: <matcher.h:194 (test_reg)>
(header_rewrite) Test regular expression s3- : (NOCASE = 0)
```
The `could not gather bufp/hdr_loc for request` message is caused by
`TSHttpTxnServerReqGet` failing in `Resources::gather`. I could not immediately
see a reason why this operation fails. I'm pretty sure this worked under 10.0.x.
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