init III

Perl OTRS/Kernel/cpan-lib/Sisimai/Reason/TooManyConn.pm

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+package Sisimai::Reason::TooManyConn;
+use feature ':5.10';
+use strict;
+use warnings;
+
+sub text  { 'toomanyconn' }
+sub description { 'SMTP connection rejected temporarily due to too many concurrency connections to the remote host' }
+sub match {
+    # Try to match that the given text and regular expressions
+    # @param    [String] argv1  String to be matched with regular expressions
+    # @return   [Integer]       0: Did not match
+    #                           1: Matched
+    # @since v4.1.26
+    my $class = shift;
+    my $argv1 = shift // return undef;
+    my $index = [
+        'all available ips are at maximum connection limit',    # SendGrid
+        'connection rate limit exceeded',
+        'exceeds per-domain connection limit for',
+        'has exceeded the max emails per hour ',
+        'throttling failure: daily message quota exceeded',
+        'throttling failure: maximum sending rate exceeded',
+        'too many connections',
+        'too many connections from your host.', # Microsoft
+        'too many concurrent smtp connections', # Microsoft
+        'too many errors from your ip',         # Free.fr
+        'too many smtp sessions for this host', # Sendmail(daemon.c)
+        'trop de connexions, ',
+        'we have already made numerous attempts to deliver this message',
+    ];
+
+    return 1 if grep { rindex($argv1, $_) > -1 } @$index;
+    return 0;
+}
+
+sub true {
+    # Blocked due to that connection rate limit exceeded
+    # @param    [Sisimai::Data] argvs   Object to be detected the reason
+    # @return   [Integer]               1: Too many connections(blocked)
+    #                                   0: Not many connections
+    # @since v4.1.26
+    # @see http://www.ietf.org/rfc/rfc2822.txt
+    my $class = shift;
+    my $argvs = shift // return undef;
+
+    return 1 if $argvs->reason eq 'toomanyconn';
+    return 1 if Sisimai::SMTP::Status->name($argvs->deliverystatus) eq 'toomanyconn';
+    return 1 if __PACKAGE__->match(lc $argvs->diagnosticcode);
+    return 0;
+}
+
+1;
+__END__
+
+=encoding utf-8
+
+=head1 NAME
+
+Sisimai::Reason::TooManyConn - Bounced due to that too many connections.
+
+=head1 SYNOPSIS
+
+    use Sisimai::Reason::TooManyConn;
+    print Sisimai::Reason::TooManyConn->match('Connection rate limit exceeded');    # 1
+
+=head1 DESCRIPTION
+
+Sisimai::Reason::TooManyConn checks the bounce reason is C<toomanyconn> or not.
+This class is called only Sisimai::Reason class.
+
+This is the error that SMTP connection was rejected temporarily due to too many
+concurrency connections to the remote server. This reason has added in Sisimai
+4.1.26 and does not exist in any version of bounceHammer.
+
+    <kijitora@example.ne.jp>: host mx02.example.ne.jp[192.0.1.20] said:
+        452 4.3.2 Connection rate limit exceeded. (in reply to MAIL FROM command)
+
+=head1 CLASS METHODS
+
+=head2 C<B<text()>>
+
+C<text()> returns string: C<toomanyconn>.
+
+    print Sisimai::Reason::TooManyConn->text;  # toomanyconn
+
+=head2 C<B<match(I<string>)>>
+
+C<match()> returns 1 if the argument matched with patterns defined in this class.
+
+    print Sisimai::Reason::TooManyConn->match('Connection rate limit exceeded');  # 1
+
+=head2 C<B<true(I<Sisimai::Data>)>>
+
+C<true()> returns 1 if the bounce reason is C<toomanyconn>. The argument must be
+Sisimai::Data object and this method is called only from Sisimai::Reason class.
+
+=head1 AUTHOR
+
+azumakuniyuki
+
+=head1 COPYRIGHT
+
+Copyright (C) 2014-2018 azumakuniyuki, All rights reserved.
+
+=head1 LICENSE
+
+This software is distributed under The BSD 2-Clause License.
+
+=cut
+
+