There's a key-value Apache table called "notes" that's part of
request_rec structure.
It's used to communicate various stuff between modules.
We came across a need to be able to interface to it from Tcl. We want
to stuff the authenticated username into Apache logs using the %
{varname}n option of CustomLog formatting. To do that we'd stuff a
"note" with the username and then invoke that note's name in the log.
There are various bits of code to interface to certain tables defined
in the request_rec: headers_in, headers_out, and err_headers_out. Not
currently used are subprocess_env and notes.
I propose adding a single new C command to Rivet/Tcl to provide
interfaces to all these tables for getting, setting and inventorying
their contents.
Something like
table get tablename key
table set tablename key value
table unset tablename key
table list tablename
I know there is some ability to support multiple entries with the same
key. Right now I'm punting on that but I suppose it might need that.
Perhaps
table add tablename key value
Anybody have any thoughts, concerns, objections, accolades, remarks,
hot buttons, flames, etc?
Really I only need an interface to notes but I figured subprocess_env
could be a good one to be able to mess with as well, at least.
Conceivably we could eventually simplify by using a more uniform
interface at the C level as well. I've got it coded but haven't
tested it yet.
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