init III

Perl OTRS/Kernel/System/PostMaster/LoopProtection/DB.pm

@@ -0,0 +1,83 @@
+# --
+# Copyright (C) 2001-2019 OTRS AG, https://otrs.com/
+# --
+# This software comes with ABSOLUTELY NO WARRANTY. For details, see
+# the enclosed file COPYING for license information (GPL). If you
+# did not receive this file, see https://www.gnu.org/licenses/gpl-3.0.txt.
+# --
+
+package Kernel::System::PostMaster::LoopProtection::DB;
+
+use strict;
+use warnings;
+
+use parent 'Kernel::System::PostMaster::LoopProtectionCommon';
+
+our @ObjectDependencies = (
+    'Kernel::Config',
+    'Kernel::System::DB',
+    'Kernel::System::Log',
+    'Kernel::System::DateTime',
+);
+
+sub SendEmail {
+    my ( $Self, %Param ) = @_;
+
+    # get database object
+    my $DBObject = $Kernel::OM->Get('Kernel::System::DB');
+
+    my $To = $Param{To} || return;
+
+    # insert log
+    return if !$DBObject->Do(
+        SQL => "INSERT INTO ticket_loop_protection (sent_to, sent_date)"
+            . " VALUES ('"
+            . $DBObject->Quote($To)
+            . "', '$Self->{LoopProtectionDate}')",
+    );
+
+    # delete old enrties
+    return if !$DBObject->Do(
+        SQL => "DELETE FROM ticket_loop_protection WHERE "
+            . " sent_date != '$Self->{LoopProtectionDate}'",
+    );
+
+    return 1;
+}
+
+sub Check {
+    my ( $Self, %Param ) = @_;
+
+    # get database object
+    my $DBObject = $Kernel::OM->Get('Kernel::System::DB');
+
+    my $To    = $Param{To} || return;
+    my $Count = 0;
+
+    # check existing logfile
+    my $SQL = "SELECT count(*) FROM ticket_loop_protection "
+        . " WHERE sent_to = '" . $DBObject->Quote($To) . "' AND "
+        . " sent_date = '$Self->{LoopProtectionDate}'";
+
+    $DBObject->Prepare( SQL => $SQL );
+
+    while ( my @Row = $DBObject->FetchrowArray() ) {
+        $Count = $Row[0];
+    }
+
+    my $Max = $Self->{PostmasterMaxEmailsPerAddress}{ lc $To } // $Self->{PostmasterMaxEmails};
+
+    # check possible loop
+    if ( $Max && $Count >= $Max ) {
+        $Kernel::OM->Get('Kernel::System::Log')->Log(
+            Priority => 'notice',
+            Message =>
+                "LoopProtection: send no more emails to '$To'! Max. count of $Self->{PostmasterMaxEmails} has been reached!",
+        );
+        return;
+    }
+
+    return 1;
+}
+
+1;