Re: duplicate header don't match header test?
On Tue, Feb 24, 2009 at 03:52:02PM +0100, Karsten Bräckelmann wrote: > On Tue, 2009-02-24 at 14:54 +0100, Nicolas Haller wrote: > > I have a problem. I have a rule like this > > header GM_BLAH X-BLAH ~= /^blah$/ > > > > If I receive a mail with one header X-BLAH, all is right, the rule > > match. > > But, If a receive a mail with two header lines X-BLAH, the rule don't > > match. > No real rule, no sample that should be hit. Well, guess I see your > problem anyway... ;) > Please do provide useful, stripped-down and carefully crafted examples, > please. The operator is =~ rather than ~=. See my point? Oops :-) > > So, is it normal? What can I do for my rule matching mail with duplicate > > header lines? > IIRC the values of headers occuring multiple times are stored in a > single string. Including the newline char. Ok, I didn't know this. > With your RE modifiers (or the lack thereof), ^ and $ only match the > beginning and end respectively of the string. Notably, they don't match > an embedded newline, as they do with the /m modifier. Also, the '.' does > not match a newline either, unless you specify the /s modifier. See the > perlre documentation for details: > http://perldoc.perl.org/perlre.html#Modifiers Thank you, you solve my problem :-) Regards, -- Nicolas Haller
Re: duplicate header don't match header test?
On Tue, 2009-02-24 at 14:54 +0100, Nicolas Haller wrote:
> I have a problem. I have a rule like this
> header GM_BLAH X-BLAH ~= /^blah$/
>
> If I receive a mail with one header X-BLAH, all is right, the rule
> match.
> But, If a receive a mail with two header lines X-BLAH, the rule don't
> match.
No real rule, no sample that should be hit. Well, guess I see your
problem anyway... ;)
Please do provide useful, stripped-down and carefully crafted examples,
please. The operator is =~ rather than ~=. See my point?
> So, is it normal? What can I do for my rule matching mail with duplicate
> header lines?
IIRC the values of headers occuring multiple times are stored in a
single string. Including the newline char.
With your RE modifiers (or the lack thereof), ^ and $ only match the
beginning and end respectively of the string. Notably, they don't match
an embedded newline, as they do with the /m modifier. Also, the '.' does
not match a newline either, unless you specify the /s modifier. See the
perlre documentation for details:
http://perldoc.perl.org/perlre.html#Modifiers
Point in case: /^.*$/ can not match here, while /^.*$/ms does.
If you need the anchoring to match a single header only (either one),
add /m. If you want '.' to span multiple headers, add /s. You can use
both, if desired.
guenther
Example, using a quickly forged mail ;) an ad-hoc rule and the relevant
debug output.
$ echo -e "Foo: A\nFoo: B\n\n" |
spamassassin --cf="header FOO Foo =~ /^.*$/ms" -D
[5674] dbg: rules: ran header rule FOO ==> got hit: "A
[5674] dbg: rules: B
[5674] dbg: rules: "
--
char *t="\10pse\0r\0dtu...@ghno\x4e\xc8\x79\xf4\xab\x51\x8a\x10\xf4\xf4\xc4";
main(){ char h,m=h=*t++,*x=t+2*h,c,i,l=*x,s=0; for (i=0;i>=1)||!t[s+h]){ putchar(t[s]);h=m;s=0; }}}
duplicate header don't match header test?
Hi all, I have a problem. I have a rule like this header GM_BLAH X-BLAH ~= /^blah$/ If I receive a mail with one header X-BLAH, all is right, the rule match. But, If a receive a mail with two header lines X-BLAH, the rule don't match. So, is it normal? What can I do for my rule matching mail with duplicate header lines? Regards, -- Nicolas Haller
