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package RT::Interface::Email::Auth::MailFrom;

use strict;
use warnings;

use Role::Basic 'with';
with 'RT::Interface::Email::Role';

=head1 NAME

RT::Interface::Email::Auth::MailFrom - The default mail gateway authenticator

=head1 SYNOPSIS

This is the default authentication plugin for RT's email gateway; no no
other authentication plugin is found in L<RT_Config/@MailPlugins>, RT
will default to this one.

This plugin reads the first address found in the C<Reply-To>, C<From>,
and C<Sender> headers, and loads or creates the user.  It performs no
checking of the identity of the user, and trusts the headers of the
incoming email.

=cut

sub GetCurrentUser {
    my %args = (
        Message => undef,
        @_,
    );

    # We don't need to do any external lookups
    my ( $Address, $Name, @errors ) = RT::Interface::Email::ParseSenderAddressFromHead( $args{'Message'}->head );
    $RT::Logger->warning("Failed to parse ".join(', ', @errors))
        if @errors;

    unless ( $Address ) {
        $RT::Logger->error("Couldn't parse or find sender's address");
        FAILURE("Couldn't parse or find sender's address");
    }

    my $CurrentUser = RT::CurrentUser->new;
    $CurrentUser->LoadByEmail( $Address );
    $CurrentUser->LoadByName( $Address ) unless $CurrentUser->Id;
    if ( $CurrentUser->Id ) {
        $RT::Logger->debug("Mail from user #". $CurrentUser->Id ." ($Address)" );
        return $CurrentUser;
    }


    my $user = RT::User->new( RT->SystemUser );
    $user->LoadOrCreateByEmail(
        RealName     => $Name,
        EmailAddress => $Address,
        Comments     => 'Autocreated on ticket submission',
    );

    $CurrentUser = RT::CurrentUser->new;
    $CurrentUser->Load( $user->id );

    return $CurrentUser;
}

RT::Base->_ImportOverlays();

1;
