Sergey Poznyakoff 24a654bc28 Revise header modification directives. ...

* src/config.c (POUND_DEFAULTS): New field: header_options.
(parse_header_options): New function.
(listener_alloc): Initialize header_options.
(http_parsetab, https_parsetab, top_level_parsetab): New directive:
HeaderOption.
* src/http.c (http_header_list_locate_name): New function.
(http_header_list_append): Check if the header being added is already
in the list.  If so, act as instructed by the "replace" argument.
(http_header_list_append_list): Likewise.
(add_forwarded_headers): New function.
(do_http): Apply all header modifications after having selected the
service.  First, canned headers are added, then user-defined headers
added, then header removal directives are applied.
* src/pound.h (http_header_list_append): Change signature.  All uses
changed.

* tests/Makefile.am: Add new tests.
* tests/https.at: Remove unnecessary ClientCert directive.
* tests/optfwd.at: New test.
* tests/optorder.at: New test.
* tests/optssl.at: New test.
* tests/poundharness.pl: New variable expansions: LISTENER:PORT and
LISTENER:IP.  Same for BACKEND.
* tests/testsuite.at: Include new tests.

* NEWS: Document changes.
* doc/pound.8: Document changes.
* configure.ac: Version 4.3.90

2023-01-18 12:40:33 +02:00

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