dovecot - Jul 2019 - Sieve adding header content to a different header

Given a message itht he headers:

Subject: This is the subject:
X-Foo: bar

how would I do the following:

   1) Add the contents of X-Foo to subject 
      Subject: [bar] This is the subject

   2) replicate the X-Foo header into X-temp
      X-temp: X-foo-bar



-- 
THE PRESIDENT DID IT IS NOT AN EXCUSE Bart chalkboard Ep. AABF05

> Subject: This is the subject:
> X-Foo: bar
> 
> how would I do the following:
> 
>  1) Add the contents of X-Foo to subject 
>     Subject: [bar] This is the subject
> 
>  2) replicate the X-Foo header into X-temp
>     X-temp: X-foo-bar
Is there a sieve list that might be more appropriate for sieve specific
questions?


-- 
This is to say: while it was true that they had just appeared in this
particular set of dimensions, it was also true that they had been living
in them all along. It is at this point that normal language gives up,
and goes and has a drink. --Colour of Magic

Am 23.07.2019 um 15:40 schrieb @lbutlr via dovecot:
> Given a message itht he headers:
> 
> Subject: This is the subject:
> X-Foo: bar
> 
> how would I do the following:
> 
>     1) Add the contents of X-Foo to subject
>        Subject: [bar] This is the subject
> 
>     2) replicate the X-Foo header into X-temp
>        X-temp: X-foo-bar
I haven't tested it but try something like this:

require ["fileinto", "editheader", "variables"];

if header :matches "X-Foo" "*" {
   set "foo" ": ${1}";
   addheader "X-temp" "X-foo-${foo}";

   if header :matches "Subject" "*"
     deleteheader "Subject";
     addheader "Subject" "[${foo}] ${1}";
   }
}

-- 
Alex JOST