Horton

Re: Allow file inclusion in pg_hba and pg_ident files

Julien Rouhaud <rjuju123@gmail.com>

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From: Julien Rouhaud <rjuju123@gmail.com>
To: Michael Paquier <michael@paquier.xyz>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>, Nathan Bossart <nathandbossart@gmail.com>
Date: 2022-11-12T08:13:53Z
Lists: pgsql-hackers 
On Thu, Nov 10, 2022 at 10:29:40AM +0900, Michael Paquier wrote:
>
> FWIW, I have been playing with the addition of a ErrorContextCallback
> in tokenize_auth_file(), and this addition leads to a really nice
> result.  With this method, it is possible to know the full chain of
> events leading to a failure when tokenizing included files, which is
> not available now in the logs when reloading the server.
>
> We could extend it to have more verbose information by passing more
> arguments to tokenize_auth_file(), still I'd like to think that just
> knowing the line number and the full path to the file is more than
> enough once you know the full chain of events.  0001 and 0002 ought to
> be merged together, but I am keeping these separate to show how simple
> the addition of the ErrorContextCallback is.

It's looks good to me.  I agree that file name and line number should be enough
to diagnose any unexpected error.

Commits

  1. Add TAP tests for include directives in HBA end ident files

  2. Introduce variables for initial and max nesting depth on configuration files

  3. Add support for file inclusions in HBA and ident configuration files

  4. Add missing initialization in tokenize_expand_file() for output list

  5. Rework memory contexts in charge of HBA/ident tokenization

  6. Add error context callback when tokenizing authentication files

  7. Invent open_auth_file() in hba.c to refactor authentication file opening

  8. Use AbsoluteConfigLocation() when building an included path in hba.c

  9. Move code related to configuration files in directories to new file

  10. doc: Fix some descriptions related to pg_ident_file_mappings

  11. Add rule_number to pg_hba_file_rules and map_number to pg_ident_file_mappings

  12. Refactor code handling the names of files loaded in hba.c

  13. Make consistent a couple of log messages when parsing HBA files

  14. Use hba_file/ident_file GUCs rather than pg_hba.conf/pg_ident.conf in logs

  15. Fix path reference when parsing pg_ident.conf for pg_ident_file_mappings

  16. Add system view pg_ident_file_mappings

  17. Modify query on pg_hba_file_rules to check for errors in regression tests

  18. Refactor code related to pg_hba_file_rules() into new file