-$Cambridge: exim/doc/doc-misc/WishList,v 1.60 2006/02/28 10:03:06 ph10 Exp $
+$Cambridge: exim/doc/doc-misc/WishList,v 1.63 2006/03/02 15:13:59 ph10 Exp $
EXIM 4 WISH LIST
----------------
different kinds of verify failure.
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-(196) 30-Sep-03 S A way of detecting whether it was HELO or EHLO in the ACL
-
-$received_protocol isn't reset until after the command is accepted (which
-seems right), and $smtp_data shows only the arguments. Maybe $smtp_command?
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-
(197) 30-Sep-03 S MACROS_DROP_PRIVS and ALT_CONFIG_DROP_PRIVS
Now that alternative configurations can be restricted to certain directories,
Unfortunately, this isn't quite as trivial as it seems.
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-(215) 14-Nov-03 S A way of turning off message-submission fix-ups
-
-Globally, and perhaps also via an ACL control so that it can be done on a
-per-message basis. Is this still needed? Since this item was added to this
-list, default fixups for non-local messages have been removed, and control =
-submission has been added.
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-
(215) 26-Nov-03 M/L Conversion of IDNA domain names for logging
IDNA (RFCs 3490-3492) converts domains names containing non-ASCII characters
(341) 15-Sep-05 S Add /return_path_retain to submission mode
-This would re-instate the behaviour prior to change 4.52/TF/02.
+This would re-instate the behaviour prior to change 4.52/PH/04.
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(342) 26-Sep-05 T Log and maybe defer odd values for condition pre-condition
The natural syntax for this would be to use a regex, like this:
${lookup regex{/some/file regex}{found-string}{not-found-string}}
+However, it would be natural to want to use $1 etc in the found-string; this
+would be hard because of the lookup caching (if repeated, the lookup won't
+actually be done and therefore the numerical variables won't be set), and in
+any case, even without caching (and it could, I suppose, be disabled for this
+lookup) those variables are not in the right storage pool even if they were
+preserved after the lookup.
+
+An alternative approach might be to implement something like this:
+
+ ${scanfile{/some/file}{sub-expression}}
+
+where the sub-expression is expanded for every line in the file, with each line
+in turn being put into $value. This is like a conditional ${readfile, and in
+fact ${readfile could be written using ${scanfile. It would be nice to find a
+way of stopping the scan once something has happened. The only thing I can
+think of is to invent a variable that changes when scanning a line generates
+some non-null text, and then always to stop on a forced failure. That would
+allow expressions like this:
+
+ ${scanfile{/some/file}
+ {
+ ${if eq{$generated}{}{${if match{regex}{$value}{something}}} fail}
+ }}
+
+It's all rather clumsy. Once a line has matched and generated some text, the
+next iteration would stop the scan. Another thought: maybe use $scanline
+instead of $value (to save confusion) and have $scantext containing everything
+that's been generated so far. That sounds pretty flexible.
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(344) 10-Oct-05 M Make debug_print work in authenticators
enwildlsearch.
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-(348) 17-Nov-05 S Option to allow AUTH when not advertised.
-
-It seems that there are clients that send AUTH when it hasn't been advertised,
-some even after HELO, not even EHLO. Sigh. Possibly this should be an ACL
-control, to enable it to be restricted to certain hosts.
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-
(350) 28-Feb-06 S Additional errors for retry rules
(i) Unexpected connection close; (ii) mail_4xx.
git://git.exim.org / exim.git / blobdiff