Re: [exim] Lookups for blacklisted links within messages

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Autor: Mike Cardwell
Data:  
Para: Exim Users List
Asunto: Re: [exim] Lookups for blacklisted links within messages
Marc Perkel wrote:

>> The docs couldn't possibly be more clear.
>>
>> ${map} provides the examples:
>>
>> ${map{a:b:c}{[$item]}}
>> ${map{<- x-y-z}{($item)}}
>>
>> So I ran them though -be:
>>
>> root@haven:~# exim4 -be '${map{a:b:c}{[$item]}}'
>> [a]:[b]:[c]
>> root@haven:~# exim4 -be '${map{<- x-y-z}{($item)}}'
>> (x)-(y)-(z)
>> root@haven:~#
>>
>> The output on its own explains exactly what it does without even having
>> to read the rest of the documentation.
>>
>> The forall/forany documentation is equally clear and concise. I couldn't
>> write better documentation if you gave me an entire afternoon to come up
>> with it.
>
> How would you use forall/forany to take a variable that contains a list
> of domains:
>
> domain1.com, domain2.com, domain3.com
>
> And with each one it calls an ACL that does various dnslists lookups. In
> this case it would verify that each one is NOT listed in any of the
> white lists and is listed in a black list, and return true if any one of
> them matches this criteria.


pseudo code:

forany {
    if( listed in whitelist ){
       false
    } else if( listed in blacklist ){
       true
    } else {
       false
    }
}


Mike