dovecot - Sep 2018 - Sieve and output variable for execute

I'm trying to get blow Sieve filter to work
require ["fileinto", "imap4flags", "mailbox",
"body", "envelope", "vnd.dovecot.pipe",
"variables", "vnd.dovecot.execute"];

if envelope :matches "To" "*@*" {
  set "recipient" "${0}";
  set "user" "${1}";
  set "recip_domain" "${2}";
}

if envelope :matches "From" "*" {
  set "sender" "${0}";
}

#Check if recipient is valid user
if execute :output "valid_user" "user-verification"
"${recipient}" {
    if string :matches "${valid_user}" "True" {
      if body :raw :contains ["message/notification"] {
        setflag "\\Seen";
        fileinto :create "Notifications";
        stop;
      }
    }
}

Where user-verification is an extprogram which calls API and verify user based
on email address then returns boolean (as an output to the console).
Everything works fine when I will remove if string :matches
"${valid_user}" "True"statement other way it looks like is
not recognizing valid_uservariable.
When I pipe valid_user to some script just to capture value for that variable it
throws an error:

error: specified :args item `True?' is invalid.

Why question mark was added to the variable in this case?
Thoughts?

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Op 19/09/2018 om 15:07 schreef Adam Raszkiewicz:
>
> I'm trying to get blow Sieve filter to work
>
> require ["fileinto", "imap4flags", "mailbox",
"body", "envelope",
> "vnd.dovecot.pipe", "variables",
"vnd.dovecot.execute"];
>
> if envelope :matches "To" "*@*" {
>
> ? set "recipient" "${0}";
>
> ? set "user" "${1}";
>
> ? set "recip_domain" "${2}";
>
> }
>
> if envelope :matches "From" "*" {
>
> ? set "sender" "${0}";
>
> }
>
> #Check if recipient is valid user
>
> if execute :output "valid_user" "user-verification"
"${recipient}" {
>
> ??? if string :matches "${valid_user}" "True" {
>
> ????? if body :raw :contains ["message/notification"] {
>
> setflag "\\Seen";
>
> fileinto :create "Notifications";
>
> stop;
>
> ????? }
>
> ??? }
>
> }
>
> Where user-verification?is an extprogram which calls API and verify 
> user based on email address then returns boolean (as an output to the 
> console).
>
> Everything works fine when I will remove if string :matches 
> "${valid_user}" "True"statement other way it looks like
is not
> recognizing valid_uservariable.
>
> When I pipe valid_user?to some script just to capture value for that 
> variable it throws an error:
>
> error: specified :args item `True?' is invalid.
>
> Why question mark was added to the variable in this case?
>
I am not sure what you're doing, but this works here:

# user-verification shell script:
#!/bin/bash

echo -n "False"

# sieve script:
require ["fileinto", "imap4flags", "mailbox",
"body", "envelope",
"vnd.dovecot.pipe", "variables",
"vnd.dovecot.execute",
"vnd.dovecot.debug"];

if envelope :matches "To" "*" {
 ? set "recipient" "${0}";
}
if envelope :localpart :matches "To" "*" {
 ? set "user" "${1}";
}
if envelope :domain :matches "To" "*" {
 ? set "recip_domain" "${1}";
}

if envelope :matches "From" "*" {
 ? set "sender" "${0}";
}

#Check if recipient is valid user

if execute :output "valid_user" "user-verification"
"${recipient}" {
 ??? if string :matches "${valid_user}" "True" {
 ??????? debug_log "TRUE";
 ??? } else {
 ??????? debug_log "FALSE";
 ??? }
}

This logs the following in the user log:

frop: line 22: info: DEBUG: TRUE.

If I change the script to print something else, it correctly logs
"FALSE".

Did you perhaps forget "-n" for the echo command? In that case
"True" is
followed by a newline, which Sieve happily reads and includes in the 
variable value.

Regards,

Stephan.
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