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+# BEGIN BPS TAGGED BLOCK {{{
+#
+# COPYRIGHT:
+#
+# This software is Copyright (c) 1996-2014 Best Practical Solutions, LLC
+# <sales@bestpractical.com>
+#
+# (Except where explicitly superseded by other copyright notices)
+#
+#
+# LICENSE:
+#
+# This work is made available to you under the terms of Version 2 of
+# the GNU General Public License. A copy of that license should have
+# been provided with this software, but in any event can be snarfed
+# from www.gnu.org.
+#
+# This work is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301 or visit their web page on the internet at
+# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html.
+#
+#
+# CONTRIBUTION SUBMISSION POLICY:
+#
+# (The following paragraph is not intended to limit the rights granted
+# to you to modify and distribute this software under the terms of
+# the GNU General Public License and is only of importance to you if
+# you choose to contribute your changes and enhancements to the
+# community by submitting them to Best Practical Solutions, LLC.)
+#
+# By intentionally submitting any modifications, corrections or
+# derivatives to this work, or any other work intended for use with
+# Request Tracker, to Best Practical Solutions, LLC, you confirm that
+# you are the copyright holder for those contributions and you grant
+# Best Practical Solutions, LLC a nonexclusive, worldwide, irrevocable,
+# royalty-free, perpetual, license to use, copy, create derivative
+# works based on those contributions, and sublicense and distribute
+# those contributions and any derivatives thereof.
+#
+# END BPS TAGGED BLOCK }}}
+
+package RT::Interface::Email;
+
+use strict;
+use warnings;
+
+use Email::Address;
+use MIME::Entity;
+use RT::EmailParser;
+use File::Temp;
+use UNIVERSAL::require;
+use Mail::Mailer ();
+use Text::ParseWords qw/shellwords/;
+
+BEGIN {
+ use base 'Exporter';
+ use vars qw ( @EXPORT_OK);
+
+ # set the version for version checking
+ our $VERSION = 2.0;
+
+ # your exported package globals go here,
+ # as well as any optionally exported functions
+ @EXPORT_OK = qw(
+ &CreateUser
+ &GetMessageContent
+ &CheckForLoops
+ &CheckForSuspiciousSender
+ &CheckForAutoGenerated
+ &CheckForBounce
+ &MailError
+ &ParseCcAddressesFromHead
+ &ParseSenderAddressFromHead
+ &ParseErrorsToAddressFromHead
+ &ParseAddressFromHeader
+ &Gateway);
+
+}
+
+=head1 NAME
+
+ RT::Interface::Email - helper functions for parsing email sent to RT
+
+=head1 SYNOPSIS
+
+ use lib "!!RT_LIB_PATH!!";
+ use lib "!!RT_ETC_PATH!!";
+
+ use RT::Interface::Email qw(Gateway CreateUser);
+
+=head1 DESCRIPTION
+
+
+
+
+=head1 METHODS
+
+=head2 CheckForLoops HEAD
+
+Takes a HEAD object of L<MIME::Head> class and returns true if the
+message's been sent by this RT instance. Uses "X-RT-Loop-Prevention"
+field of the head for test.
+
+=cut
+
+sub CheckForLoops {
+ my $head = shift;
+
+ # If this instance of RT sent it our, we don't want to take it in
+ my $RTLoop = $head->get("X-RT-Loop-Prevention") || "";
+ chomp ($RTLoop); # remove that newline
+ if ( $RTLoop eq RT->Config->Get('rtname') ) {
+ return 1;
+ }
+
+ # TODO: We might not trap the case where RT instance A sends a mail
+ # to RT instance B which sends a mail to ...
+ return undef;
+}
+
+=head2 CheckForSuspiciousSender HEAD
+
+Takes a HEAD object of L<MIME::Head> class and returns true if sender
+is suspicious. Suspicious means mailer daemon.
+
+See also L</ParseSenderAddressFromHead>.
+
+=cut
+
+sub CheckForSuspiciousSender {
+ my $head = shift;
+
+ #if it's from a postmaster or mailer daemon, it's likely a bounce.
+
+ #TODO: better algorithms needed here - there is no standards for
+ #bounces, so it's very difficult to separate them from anything
+ #else. At the other hand, the Return-To address is only ment to be
+ #used as an error channel, we might want to put up a separate
+ #Return-To address which is treated differently.
+
+ #TODO: search through the whole email and find the right Ticket ID.
+
+ my ( $From, $junk ) = ParseSenderAddressFromHead($head);
+
+ # If unparseable (non-ASCII), $From can come back undef
+ return undef if not defined $From;
+
+ if ( ( $From =~ /^mailer-daemon\@/i )
+ or ( $From =~ /^postmaster\@/i )
+ or ( $From eq "" ))
+ {
+ return (1);
+
+ }
+
+ return undef;
+}
+
+=head2 CheckForAutoGenerated HEAD
+
+Takes a HEAD object of L<MIME::Head> class and returns true if message
+is autogenerated. Checks 'Precedence' and 'X-FC-Machinegenerated'
+fields of the head in tests.
+
+=cut
+
+sub CheckForAutoGenerated {
+ my $head = shift;
+
+ my $Precedence = $head->get("Precedence") || "";
+ if ( $Precedence =~ /^(bulk|junk)/i ) {
+ return (1);
+ }
+
+ # Per RFC3834, any Auto-Submitted header which is not "no" means
+ # it is auto-generated.
+ my $AutoSubmitted = $head->get("Auto-Submitted") || "";
+ if ( length $AutoSubmitted and $AutoSubmitted ne "no" ) {
+ return (1);
+ }
+
+ # First Class mailer uses this as a clue.
+ my $FCJunk = $head->get("X-FC-Machinegenerated") || "";
+ if ( $FCJunk =~ /^true/i ) {
+ return (1);
+ }
+
+ return (0);
+}
+
+
+sub CheckForBounce {
+ my $head = shift;
+
+ my $ReturnPath = $head->get("Return-path") || "";
+ return ( $ReturnPath =~ /<>/ );
+}
+
+
+=head2 MailError PARAM HASH
+
+Sends an error message. Takes a param hash:
+
+=over 4
+
+=item From - sender's address, by default is 'CorrespondAddress';
+
+=item To - recipient, by default is 'OwnerEmail';
+
+=item Bcc - optional Bcc recipients;
+
+=item Subject - subject of the message, default is 'There has been an error';
+
+=item Explanation - main content of the error, default value is 'Unexplained error';
+
+=item MIMEObj - optional MIME entity that's attached to the error mail, as well we
+add 'In-Reply-To' field to the error that points to this message.
+
+=item Attach - optional text that attached to the error as 'message/rfc822' part.
+
+=item LogLevel - log level under which we should write the subject and
+explanation message into the log, by default we log it as critical.
+
+=back
+
+=cut
+
+sub MailError {
+ my %args = (
+ To => RT->Config->Get('OwnerEmail'),
+ Bcc => undef,
+ From => RT->Config->Get('CorrespondAddress'),
+ Subject => 'There has been an error',
+ Explanation => 'Unexplained error',
+ MIMEObj => undef,
+ Attach => undef,
+ LogLevel => 'crit',
+ @_
+ );
+
+ $RT::Logger->log(
+ level => $args{'LogLevel'},
+ message => "$args{Subject}: $args{'Explanation'}",
+ ) if $args{'LogLevel'};
+
+ # the colons are necessary to make ->build include non-standard headers
+ my %entity_args = (
+ Type => "multipart/mixed",
+ From => $args{'From'},
+ Bcc => $args{'Bcc'},
+ To => $args{'To'},
+ Subject => $args{'Subject'},
+ 'X-RT-Loop-Prevention:' => RT->Config->Get('rtname'),
+ );
+
+ # only set precedence if the sysadmin wants us to
+ if (defined(RT->Config->Get('DefaultErrorMailPrecedence'))) {
+ $entity_args{'Precedence:'} = RT->Config->Get('DefaultErrorMailPrecedence');
+ }
+
+ my $entity = MIME::Entity->build(%entity_args);
+ SetInReplyTo( Message => $entity, InReplyTo => $args{'MIMEObj'} );
+
+ $entity->attach( Data => $args{'Explanation'} . "\n" );
+
+ if ( $args{'MIMEObj'} ) {
+ $args{'MIMEObj'}->sync_headers;
+ $entity->add_part( $args{'MIMEObj'} );
+ }
+
+ if ( $args{'Attach'} ) {
+ $entity->attach( Data => $args{'Attach'}, Type => 'message/rfc822' );
+
+ }
+
+ SendEmail( Entity => $entity, Bounce => 1 );
+}
+
+
+=head2 SendEmail Entity => undef, [ Bounce => 0, Ticket => undef, Transaction => undef ]
+
+Sends an email (passed as a L<MIME::Entity> object C<ENTITY>) using
+RT's outgoing mail configuration. If C<BOUNCE> is passed, and is a
+true value, the message will be marked as an autogenerated error, if
+possible. Sets Date field of the head to now if it's not set.
+
+If the C<X-RT-Squelch> header is set to any true value, the mail will
+not be sent. One use is to let extensions easily cancel outgoing mail.
+
+Ticket and Transaction arguments are optional. If Transaction is
+specified and Ticket is not then ticket of the transaction is
+used, but only if the transaction belongs to a ticket.
+
+Returns 1 on success, 0 on error or -1 if message has no recipients
+and hasn't been sent.
+
+=head3 Signing and Encrypting
+
+This function as well signs and/or encrypts the message according to
+headers of a transaction's attachment or properties of a ticket's queue.
+To get full access to the configuration Ticket and/or Transaction
+arguments must be provided, but you can force behaviour using Sign
+and/or Encrypt arguments.
+
+The following precedence of arguments are used to figure out if
+the message should be encrypted and/or signed:
+
+* if Sign or Encrypt argument is defined then its value is used
+
+* else if Transaction's first attachment has X-RT-Sign or X-RT-Encrypt
+header field then it's value is used
+
+* else properties of a queue of the Ticket are used.
+
+=cut
+
+sub WillSignEncrypt {
+ my %args = @_;
+ my $attachment = delete $args{Attachment};
+ my $ticket = delete $args{Ticket};
+
+ if ( not RT->Config->Get('GnuPG')->{'Enable'} ) {
+ $args{Sign} = $args{Encrypt} = 0;
+ return wantarray ? %args : 0;
+ }
+
+ for my $argument ( qw(Sign Encrypt) ) {
+ next if defined $args{ $argument };
+
+ if ( $attachment and defined $attachment->GetHeader("X-RT-$argument") ) {
+ $args{$argument} = $attachment->GetHeader("X-RT-$argument");
+ } elsif ( $ticket and $argument eq "Encrypt" ) {
+ $args{Encrypt} = $ticket->QueueObj->Encrypt();
+ } elsif ( $ticket and $argument eq "Sign" ) {
+ # Note that $queue->Sign is UI-only, and that all
+ # UI-generated messages explicitly set the X-RT-Crypt header
+ # to 0 or 1; thus this path is only taken for messages
+ # generated _not_ via the web UI.
+ $args{Sign} = $ticket->QueueObj->SignAuto();
+ }
+ }
+
+ return wantarray ? %args : ($args{Sign} || $args{Encrypt});
+}
+
+sub SendEmail {
+ my (%args) = (
+ Entity => undef,
+ Bounce => 0,
+ Ticket => undef,
+ Transaction => undef,
+ @_,
+ );
+
+ my $TicketObj = $args{'Ticket'};
+ my $TransactionObj = $args{'Transaction'};
+
+ foreach my $arg( qw(Entity Bounce) ) {
+ next unless defined $args{ lc $arg };
+
+ $RT::Logger->warning("'". lc($arg) ."' argument is deprecated, use '$arg' instead");
+ $args{ $arg } = delete $args{ lc $arg };
+ }
+
+ unless ( $args{'Entity'} ) {
+ $RT::Logger->crit( "Could not send mail without 'Entity' object" );
+ return 0;
+ }
+
+ my $msgid = $args{'Entity'}->head->get('Message-ID') || '';
+ chomp $msgid;
+
+ # If we don't have any recipients to send to, don't send a message;
+ unless ( $args{'Entity'}->head->get('To')
+ || $args{'Entity'}->head->get('Cc')
+ || $args{'Entity'}->head->get('Bcc') )
+ {
+ $RT::Logger->info( $msgid . " No recipients found. Not sending." );
+ return -1;
+ }
+
+ if ($args{'Entity'}->head->get('X-RT-Squelch')) {
+ $RT::Logger->info( $msgid . " Squelch header found. Not sending." );
+ return -1;
+ }
+
+ if ( $TransactionObj && !$TicketObj
+ && $TransactionObj->ObjectType eq 'RT::Ticket' )
+ {
+ $TicketObj = $TransactionObj->Object;
+ }
+
+ if ( RT->Config->Get('GnuPG')->{'Enable'} ) {
+ %args = WillSignEncrypt(
+ %args,
+ Attachment => $TransactionObj ? $TransactionObj->Attachments->First : undef,
+ Ticket => $TicketObj,
+ );
+ my $res = SignEncrypt( %args );
+ return $res unless $res > 0;
+ }
+
+ unless ( $args{'Entity'}->head->get('Date') ) {
+ require RT::Date;
+ my $date = RT::Date->new( RT->SystemUser );
+ $date->SetToNow;
+ $args{'Entity'}->head->set( 'Date', $date->RFC2822( Timezone => 'server' ) );
+ }
+
+ my $mail_command = RT->Config->Get('MailCommand');
+
+ if ($mail_command eq 'testfile' and not $Mail::Mailer::testfile::config{outfile}) {
+ $Mail::Mailer::testfile::config{outfile} = File::Temp->new;
+ $RT::Logger->info("Storing outgoing emails in $Mail::Mailer::testfile::config{outfile}");
+ }
+
+ # if it is a sub routine, we just return it;
+ return $mail_command->($args{'Entity'}) if UNIVERSAL::isa( $mail_command, 'CODE' );
+
+ if ( $mail_command eq 'sendmailpipe' ) {
+ my $path = RT->Config->Get('SendmailPath');
+ my @args = shellwords(RT->Config->Get('SendmailArguments'));
+
+ # SetOutgoingMailFrom and bounces conflict, since they both want -f
+ if ( $args{'Bounce'} ) {
+ push @args, shellwords(RT->Config->Get('SendmailBounceArguments'));
+ } elsif ( my $MailFrom = RT->Config->Get('SetOutgoingMailFrom') ) {
+ my $OutgoingMailAddress = $MailFrom =~ /\@/ ? $MailFrom : undef;
+ my $Overrides = RT->Config->Get('OverrideOutgoingMailFrom') || {};
+
+ if ($TicketObj) {
+ my $QueueName = $TicketObj->QueueObj->Name;
+ my $QueueAddressOverride = $Overrides->{$QueueName};
+
+ if ($QueueAddressOverride) {
+ $OutgoingMailAddress = $QueueAddressOverride;
+ } else {
+ $OutgoingMailAddress ||= $TicketObj->QueueObj->CorrespondAddress
+ || RT->Config->Get('CorrespondAddress');
+ }
+ }
+ elsif ($Overrides->{'Default'}) {
+ $OutgoingMailAddress = $Overrides->{'Default'};
+ }
+
+ push @args, "-f", $OutgoingMailAddress
+ if $OutgoingMailAddress;
+ }
+
+ # VERP
+ if ( $TransactionObj and
+ my $prefix = RT->Config->Get('VERPPrefix') and
+ my $domain = RT->Config->Get('VERPDomain') )
+ {
+ my $from = $TransactionObj->CreatorObj->EmailAddress;
+ $from =~ s/@/=/g;
+ $from =~ s/\s//g;
+ push @args, "-f", "$prefix$from\@$domain";
+ }
+
+ eval {
+ # don't ignore CHLD signal to get proper exit code
+ local $SIG{'CHLD'} = 'DEFAULT';
+
+ # if something wrong with $mail->print we will get PIPE signal, handle it
+ local $SIG{'PIPE'} = sub { die "program unexpectedly closed pipe" };
+
+ require IPC::Open2;
+ my ($mail, $stdout);
+ my $pid = IPC::Open2::open2( $stdout, $mail, $path, @args )
+ or die "couldn't execute program: $!";
+
+ $args{'Entity'}->print($mail);
+ close $mail or die "close pipe failed: $!";
+
+ waitpid($pid, 0);
+ if ($?) {
+ # sendmail exit statuses mostly errors with data not software
+ # TODO: status parsing: core dump, exit on signal or EX_*
+ my $msg = "$msgid: `$path @args` exited with code ". ($?>>8);
+ $msg = ", interrupted by signal ". ($?&127) if $?&127;
+ $RT::Logger->error( $msg );
+ die $msg;
+ }
+ };
+ if ( $@ ) {
+ $RT::Logger->crit( "$msgid: Could not send mail with command `$path @args`: " . $@ );
+ if ( $TicketObj ) {
+ _RecordSendEmailFailure( $TicketObj );
+ }
+ return 0;
+ }
+ }
+ elsif ( $mail_command eq 'smtp' ) {
+ require Net::SMTP;
+ my $smtp = do { local $@; eval { Net::SMTP->new(
+ Host => RT->Config->Get('SMTPServer'),
+ Debug => RT->Config->Get('SMTPDebug'),
+ ) } };
+ unless ( $smtp ) {
+ $RT::Logger->crit( "Could not connect to SMTP server.");
+ if ($TicketObj) {
+ _RecordSendEmailFailure( $TicketObj );
+ }
+ return 0;
+ }
+
+ # duplicate head as we want drop Bcc field
+ my $head = $args{'Entity'}->head->dup;
+ my @recipients = map $_->address, map
+ Email::Address->parse($head->get($_)), qw(To Cc Bcc);
+ $head->delete('Bcc');
+
+ my $sender = RT->Config->Get('SMTPFrom')
+ || $args{'Entity'}->head->get('From');
+ chomp $sender;
+
+ my $status = $smtp->mail( $sender )
+ && $smtp->recipient( @recipients );
+
+ if ( $status ) {
+ $smtp->data;
+ my $fh = $smtp->tied_fh;
+ $head->print( $fh );
+ print $fh "\n";
+ $args{'Entity'}->print_body( $fh );
+ $smtp->dataend;
+ }
+ $smtp->quit;
+
+ unless ( $status ) {
+ $RT::Logger->crit( "$msgid: Could not send mail via SMTP." );
+ if ( $TicketObj ) {
+ _RecordSendEmailFailure( $TicketObj );
+ }
+ return 0;
+ }
+ }
+ else {
+ local ($ENV{'MAILADDRESS'}, $ENV{'PERL_MAILERS'});
+
+ my @mailer_args = ($mail_command);
+ if ( $mail_command eq 'sendmail' ) {
+ $ENV{'PERL_MAILERS'} = RT->Config->Get('SendmailPath');
+ push @mailer_args, split(/\s+/, RT->Config->Get('SendmailArguments'));
+ }
+ else {
+ push @mailer_args, RT->Config->Get('MailParams');
+ }
+
+ unless ( $args{'Entity'}->send( @mailer_args ) ) {
+ $RT::Logger->crit( "$msgid: Could not send mail." );
+ if ( $TicketObj ) {
+ _RecordSendEmailFailure( $TicketObj );
+ }
+ return 0;
+ }
+ }
+ return 1;
+}
+
+=head2 PrepareEmailUsingTemplate Template => '', Arguments => {}
+
+Loads a template. Parses it using arguments if it's not empty.
+Returns a tuple (L<RT::Template> object, error message).
+
+Note that even if a template object is returned MIMEObj method
+may return undef for empty templates.
+
+=cut
+
+sub PrepareEmailUsingTemplate {
+ my %args = (
+ Template => '',
+ Arguments => {},
+ @_
+ );
+
+ my $template = RT::Template->new( RT->SystemUser );
+ $template->LoadGlobalTemplate( $args{'Template'} );
+ unless ( $template->id ) {
+ return (undef, "Couldn't load template '". $args{'Template'} ."'");
+ }
+ return $template if $template->IsEmpty;
+
+ my ($status, $msg) = $template->Parse( %{ $args{'Arguments'} } );
+ return (undef, $msg) unless $status;
+
+ return $template;
+}
+
+=head2 SendEmailUsingTemplate Template => '', Arguments => {}, From => CorrespondAddress, To => '', Cc => '', Bcc => ''
+
+Sends email using a template, takes name of template, arguments for it and recipients.
+
+=cut
+
+sub SendEmailUsingTemplate {
+ my %args = (
+ Template => '',
+ Arguments => {},
+ To => undef,
+ Cc => undef,
+ Bcc => undef,
+ From => RT->Config->Get('CorrespondAddress'),
+ InReplyTo => undef,
+ ExtraHeaders => {},
+ @_
+ );
+
+ my ($template, $msg) = PrepareEmailUsingTemplate( %args );
+ return (0, $msg) unless $template;
+
+ my $mail = $template->MIMEObj;
+ unless ( $mail ) {
+ $RT::Logger->info("Message is not sent as template #". $template->id ." is empty");
+ return -1;
+ }
+
+ $mail->head->set( $_ => Encode::encode_utf8( $args{ $_ } ) )
+ foreach grep defined $args{$_}, qw(To Cc Bcc From);
+
+ $mail->head->set( $_ => $args{ExtraHeaders}{$_} )
+ foreach keys %{ $args{ExtraHeaders} };
+
+ SetInReplyTo( Message => $mail, InReplyTo => $args{'InReplyTo'} );
+
+ return SendEmail( Entity => $mail );
+}
+
+=head2 ForwardTransaction TRANSACTION, To => '', Cc => '', Bcc => ''
+
+Forwards transaction with all attachments as 'message/rfc822'.
+
+=cut
+
+sub ForwardTransaction {
+ my $txn = shift;
+ my %args = ( To => '', Cc => '', Bcc => '', @_ );
+
+ my $entity = $txn->ContentAsMIME;
+
+ my ( $ret, $msg ) = SendForward( %args, Entity => $entity, Transaction => $txn );
+ if ($ret) {
+ my $ticket = $txn->TicketObj;
+ my ( $ret, $msg ) = $ticket->_NewTransaction(
+ Type => 'Forward Transaction',
+ Field => $txn->id,
+ Data => join ', ', grep { length } $args{To}, $args{Cc}, $args{Bcc},
+ );
+ unless ($ret) {
+ $RT::Logger->error("Failed to create transaction: $msg");
+ }
+ }
+ return ( $ret, $msg );
+}
+
+=head2 ForwardTicket TICKET, To => '', Cc => '', Bcc => ''
+
+Forwards a ticket's Create and Correspond Transactions and their Attachments as 'message/rfc822'.
+
+=cut
+
+sub ForwardTicket {
+ my $ticket = shift;
+ my %args = ( To => '', Cc => '', Bcc => '', @_ );
+
+ my $txns = $ticket->Transactions;
+ $txns->Limit(
+ FIELD => 'Type',
+ VALUE => $_,
+ ) for qw(Create Correspond);
+
+ my $entity = MIME::Entity->build(
+ Type => 'multipart/mixed',
+ Description => 'forwarded ticket',
+ );
+ $entity->add_part( $_ ) foreach
+ map $_->ContentAsMIME,
+ @{ $txns->ItemsArrayRef };
+
+ my ( $ret, $msg ) = SendForward(
+ %args,
+ Entity => $entity,
+ Ticket => $ticket,
+ Template => 'Forward Ticket',
+ );
+
+ if ($ret) {
+ my ( $ret, $msg ) = $ticket->_NewTransaction(
+ Type => 'Forward Ticket',
+ Field => $ticket->id,
+ Data => join ', ', grep { length } $args{To}, $args{Cc}, $args{Bcc},
+ );
+ unless ($ret) {
+ $RT::Logger->error("Failed to create transaction: $msg");
+ }
+ }
+
+ return ( $ret, $msg );
+
+}
+
+=head2 SendForward Entity => undef, Ticket => undef, Transaction => undef, Template => undef, To => '', Cc => '', Bcc => ''
+
+Forwards an Entity representing Ticket or Transaction as 'message/rfc822'. Entity is wrapped into Template.
+
+=cut
+
+sub SendForward {
+ my (%args) = (
+ Entity => undef,
+ Ticket => undef,
+ Transaction => undef,
+ Template => 'Forward',
+ To => '', Cc => '', Bcc => '',
+ @_
+ );
+
+ my $txn = $args{'Transaction'};
+ my $ticket = $args{'Ticket'};
+ $ticket ||= $txn->Object if $txn;
+
+ my $entity = $args{'Entity'};
+ unless ( $entity ) {
+ require Carp;
+ $RT::Logger->error(Carp::longmess("No entity provided"));
+ return (0, $ticket->loc("Couldn't send email"));
+ }
+
+ my ($template, $msg) = PrepareEmailUsingTemplate(
+ Template => $args{'Template'},
+ Arguments => {
+ Ticket => $ticket,
+ Transaction => $txn,
+ },
+ );
+
+ my $mail;
+ if ( $template ) {
+ $mail = $template->MIMEObj;
+ } else {
+ $RT::Logger->warning($msg);
+ }
+ unless ( $mail ) {
+ $RT::Logger->warning("Couldn't generate email using template '$args{Template}'");
+
+ my $description;
+ unless ( $args{'Transaction'} ) {
+ $description = 'This is forward of ticket #'. $ticket->id;
+ } else {
+ $description = 'This is forward of transaction #'
+ . $txn->id ." of a ticket #". $txn->ObjectId;
+ }
+ $mail = MIME::Entity->build(
+ Type => 'text/plain',
+ Data => $description,
+ );
+ }
+
+ $mail->head->set( $_ => EncodeToMIME( String => $args{$_} ) )
+ foreach grep defined $args{$_}, qw(To Cc Bcc);
+
+ $mail->make_multipart unless $mail->is_multipart;
+ $mail->add_part( $entity );
+
+ my $from;
+ unless (defined $mail->head->get('Subject')) {
+ my $subject = '';
+ $subject = $txn->Subject if $txn;
+ $subject ||= $ticket->Subject if $ticket;
+
+ unless ( RT->Config->Get('ForwardFromUser') ) {
+ # XXX: what if want to forward txn of other object than ticket?
+ $subject = AddSubjectTag( $subject, $ticket );
+ }
+
+ $mail->head->set( Subject => EncodeToMIME( String => "Fwd: $subject" ) );
+ }
+
+ $mail->head->set(
+ From => EncodeToMIME(
+ String => GetForwardFrom( Transaction => $txn, Ticket => $ticket )
+ )
+ );
+
+ my $status = RT->Config->Get('ForwardFromUser')
+ # never sign if we forward from User
+ ? SendEmail( %args, Entity => $mail, Sign => 0 )
+ : SendEmail( %args, Entity => $mail );
+ return (0, $ticket->loc("Couldn't send email")) unless $status;
+ return (1, $ticket->loc("Sent email successfully"));
+}
+
+=head2 GetForwardFrom Ticket => undef, Transaction => undef
+
+Resolve the From field to use in forward mail
+
+=cut
+
+sub GetForwardFrom {
+ my %args = ( Ticket => undef, Transaction => undef, @_ );
+ my $txn = $args{Transaction};
+ my $ticket = $args{Ticket} || $txn->Object;
+
+ if ( RT->Config->Get('ForwardFromUser') ) {
+ return ( $txn || $ticket )->CurrentUser->EmailAddress;
+ }
+ else {
+ return $ticket->QueueObj->CorrespondAddress
+ || RT->Config->Get('CorrespondAddress');
+ }
+}
+
+=head2 SignEncrypt Entity => undef, Sign => 0, Encrypt => 0
+
+Signs and encrypts message using L<RT::Crypt::GnuPG>, but as well
+handle errors with users' keys.
+
+If a recipient has no key or has other problems with it, then the
+unction sends a error to him using 'Error: public key' template.
+Also, notifies RT's owner using template 'Error to RT owner: public key'
+to inform that there are problems with users' keys. Then we filter
+all bad recipients and retry.
+
+Returns 1 on success, 0 on error and -1 if all recipients are bad and
+had been filtered out.
+
+=cut
+
+sub SignEncrypt {
+ my %args = (
+ Entity => undef,
+ Sign => 0,
+ Encrypt => 0,
+ @_
+ );
+ return 1 unless $args{'Sign'} || $args{'Encrypt'};
+
+ my $msgid = $args{'Entity'}->head->get('Message-ID') || '';
+ chomp $msgid;
+
+ $RT::Logger->debug("$msgid Signing message") if $args{'Sign'};
+ $RT::Logger->debug("$msgid Encrypting message") if $args{'Encrypt'};
+
+ require RT::Crypt::GnuPG;
+ my %res = RT::Crypt::GnuPG::SignEncrypt( %args );
+ return 1 unless $res{'exit_code'};
+
+ my @status = RT::Crypt::GnuPG::ParseStatus( $res{'status'} );
+
+ my @bad_recipients;
+ foreach my $line ( @status ) {
+ # if the passphrase fails, either you have a bad passphrase
+ # or gpg-agent has died. That should get caught in Create and
+ # Update, but at least throw an error here
+ if (($line->{'Operation'}||'') eq 'PassphraseCheck'
+ && $line->{'Status'} =~ /^(?:BAD|MISSING)$/ ) {
+ $RT::Logger->error( "$line->{'Status'} PASSPHRASE: $line->{'Message'}" );
+ return 0;
+ }
+ next unless ($line->{'Operation'}||'') eq 'RecipientsCheck';
+ next if $line->{'Status'} eq 'DONE';
+ $RT::Logger->error( $line->{'Message'} );
+ push @bad_recipients, $line;
+ }
+ return 0 unless @bad_recipients;
+
+ $_->{'AddressObj'} = (Email::Address->parse( $_->{'Recipient'} ))[0]
+ foreach @bad_recipients;
+
+ foreach my $recipient ( @bad_recipients ) {
+ my $status = SendEmailUsingTemplate(
+ To => $recipient->{'AddressObj'}->address,
+ Template => 'Error: public key',
+ Arguments => {
+ %$recipient,
+ TicketObj => $args{'Ticket'},
+ TransactionObj => $args{'Transaction'},
+ },
+ );
+ unless ( $status ) {
+ $RT::Logger->error("Couldn't send 'Error: public key'");
+ }
+ }
+
+ my $status = SendEmailUsingTemplate(
+ To => RT->Config->Get('OwnerEmail'),
+ Template => 'Error to RT owner: public key',
+ Arguments => {
+ BadRecipients => \@bad_recipients,
+ TicketObj => $args{'Ticket'},
+ TransactionObj => $args{'Transaction'},
+ },
+ );
+ unless ( $status ) {
+ $RT::Logger->error("Couldn't send 'Error to RT owner: public key'");
+ }
+
+ DeleteRecipientsFromHead(
+ $args{'Entity'}->head,
+ map $_->{'AddressObj'}->address, @bad_recipients
+ );
+
+ unless ( $args{'Entity'}->head->get('To')
+ || $args{'Entity'}->head->get('Cc')
+ || $args{'Entity'}->head->get('Bcc') )
+ {
+ $RT::Logger->debug("$msgid No recipients that have public key, not sending");
+ return -1;
+ }
+
+ # redo without broken recipients
+ %res = RT::Crypt::GnuPG::SignEncrypt( %args );
+ return 0 if $res{'exit_code'};
+
+ return 1;
+}
+
+use MIME::Words ();
+
+=head2 EncodeToMIME
+
+Takes a hash with a String and a Charset. Returns the string encoded
+according to RFC2047, using B (base64 based) encoding.
+
+String must be a perl string, octets are returned.
+
+If Charset is not provided then $EmailOutputEncoding config option
+is used, or "latin-1" if that is not set.
+
+=cut
+
+sub EncodeToMIME {
+ my %args = (
+ String => undef,
+ Charset => undef,
+ @_
+ );
+ my $value = $args{'String'};
+ return $value unless $value; # 0 is perfect ascii
+ my $charset = $args{'Charset'} || RT->Config->Get('EmailOutputEncoding');
+ my $encoding = 'B';
+
+ # using RFC2047 notation, sec 2.
+ # encoded-word = "=?" charset "?" encoding "?" encoded-text "?="
+
+ # An 'encoded-word' may not be more than 75 characters long
+ #
+ # MIME encoding increases 4/3*(number of bytes), and always in multiples
+ # of 4. Thus we have to find the best available value of bytes available
+ # for each chunk.
+ #
+ # First we get the integer max which max*4/3 would fit on space.
+ # Then we find the greater multiple of 3 lower or equal than $max.
+ my $max = int(
+ ( ( 75 - length( '=?' . $charset . '?' . $encoding . '?' . '?=' ) )
+ * 3
+ ) / 4
+ );
+ $max = int( $max / 3 ) * 3;
+
+ chomp $value;
+
+ if ( $max <= 0 ) {
+
+ # gives an error...
+ $RT::Logger->crit("Can't encode! Charset or encoding too big.");
+ return ($value);
+ }
+
+ return ($value) if $value =~ /^(?:[\t\x20-\x7e]|\x0D*\x0A[ \t])+$/s;
+
+ $value =~ s/\s+$//;
+
+ # we need perl string to split thing char by char
+ Encode::_utf8_on($value) unless Encode::is_utf8($value);
+
+ my ( $tmp, @chunks ) = ( '', () );
+ while ( length $value ) {
+ my $char = substr( $value, 0, 1, '' );
+ my $octets = Encode::encode( $charset, $char );
+ if ( length($tmp) + length($octets) > $max ) {
+ push @chunks, $tmp;
+ $tmp = '';
+ }
+ $tmp .= $octets;
+ }
+ push @chunks, $tmp if length $tmp;
+
+ # encode an join chuncks
+ $value = join "\n ",
+ map MIME::Words::encode_mimeword( $_, $encoding, $charset ),
+ @chunks;
+ return ($value);
+}
+
+sub CreateUser {
+ my ( $Username, $Address, $Name, $ErrorsTo, $entity ) = @_;
+
+ my $NewUser = RT::User->new( RT->SystemUser );
+
+ my ( $Val, $Message ) = $NewUser->Create(
+ Name => ( $Username || $Address ),
+ EmailAddress => $Address,
+ RealName => $Name,
+ Password => undef,
+ Privileged => 0,
+ Comments => 'Autocreated on ticket submission',
+ );
+
+ unless ($Val) {
+
+ # Deal with the race condition of two account creations at once
+ if ($Username) {
+ $NewUser->LoadByName($Username);
+ }
+
+ unless ( $NewUser->Id ) {
+ $NewUser->LoadByEmail($Address);
+ }
+
+ unless ( $NewUser->Id ) {
+ MailError(
+ To => $ErrorsTo,
+ Subject => "User could not be created",
+ Explanation =>
+ "User creation failed in mailgateway: $Message",
+ MIMEObj => $entity,
+ LogLevel => 'crit',
+ );
+ }
+ }
+
+ #Load the new user object
+ my $CurrentUser = RT::CurrentUser->new;
+ $CurrentUser->LoadByEmail( $Address );
+
+ unless ( $CurrentUser->id ) {
+ $RT::Logger->warning(
+ "Couldn't load user '$Address'." . "giving up" );
+ MailError(
+ To => $ErrorsTo,
+ Subject => "User could not be loaded",
+ Explanation =>
+ "User '$Address' could not be loaded in the mail gateway",
+ MIMEObj => $entity,
+ LogLevel => 'crit'
+ );
+ }
+
+ return $CurrentUser;
+}
+
+
+
+=head2 ParseCcAddressesFromHead HASH
+
+Takes a hash containing QueueObj, Head and CurrentUser objects.
+Returns a list of all email addresses in the To and Cc
+headers b<except> the current Queue's email addresses, the CurrentUser's
+email address and anything that the configuration sub RT::IsRTAddress matches.
+
+=cut
+
+sub ParseCcAddressesFromHead {
+ my %args = (
+ Head => undef,
+ QueueObj => undef,
+ CurrentUser => undef,
+ @_
+ );
+
+ my $current_address = lc $args{'CurrentUser'}->EmailAddress;
+ my $user = $args{'CurrentUser'}->UserObj;
+
+ return
+ grep { $_ ne $current_address
+ && !RT::EmailParser->IsRTAddress( $_ )
+ && !IgnoreCcAddress( $_ )
+ }
+ map lc $user->CanonicalizeEmailAddress( $_->address ),
+ map RT::EmailParser->CleanupAddresses( Email::Address->parse( $args{'Head'}->get( $_ ) ) ),
+ qw(To Cc);
+}
+
+=head2 IgnoreCcAddress ADDRESS
+
+Returns true if ADDRESS matches the $IgnoreCcRegexp config variable.
+
+=cut
+
+sub IgnoreCcAddress {
+ my $address = shift;
+ if ( my $address_re = RT->Config->Get('IgnoreCcRegexp') ) {
+ return 1 if $address =~ /$address_re/i;
+ }
+ return undef;
+}
+
+=head2 ParseSenderAddressFromHead HEAD
+
+Takes a MIME::Header object. Returns (user@host, friendly name, errors)
+where the first two values are the From (evaluated in order of
+Reply-To:, From:, Sender).
+
+A list of error messages may be returned even when a Sender value is
+found, since it could be a parse error for another (checked earlier)
+sender field. In this case, the errors aren't fatal, but may be useful
+to investigate the parse failure.
+
+=cut
+
+sub ParseSenderAddressFromHead {
+ my $head = shift;
+ my @sender_headers = ('Reply-To', 'From', 'Sender');
+ my @errors; # Accumulate any errors
+
+ #Figure out who's sending this message.
+ foreach my $header ( @sender_headers ) {
+ my $addr_line = $head->get($header) || next;
+ my ($addr, $name) = ParseAddressFromHeader( $addr_line );
+ # only return if the address is not empty
+ return ($addr, $name, @errors) if $addr;
+
+ chomp $addr_line;
+ push @errors, "$header: $addr_line";
+ }
+
+ return (undef, undef, @errors);
+}
+
+=head2 ParseErrorsToAddressFromHead HEAD
+
+Takes a MIME::Header object. Return a single value : user@host
+of the From (evaluated in order of Return-path:,Errors-To:,Reply-To:,
+From:, Sender)
+
+=cut
+
+sub ParseErrorsToAddressFromHead {
+ my $head = shift;
+
+ #Figure out who's sending this message.
+
+ foreach my $header ( 'Errors-To', 'Reply-To', 'From', 'Sender' ) {
+
+ # If there's a header of that name
+ my $headerobj = $head->get($header);
+ if ($headerobj) {
+ my ( $addr, $name ) = ParseAddressFromHeader($headerobj);
+
+ # If it's got actual useful content...
+ return ($addr) if ($addr);
+ }
+ }
+}
+
+
+
+=head2 ParseAddressFromHeader ADDRESS
+
+Takes an address from C<$head->get('Line')> and returns a tuple: user@host, friendly name
+
+=cut
+
+sub ParseAddressFromHeader {
+ my $Addr = shift;
+
+ # Some broken mailers send: ""Vincent, Jesse"" <jesse@fsck.com>. Hate
+ $Addr =~ s/\"\"(.*?)\"\"/\"$1\"/g;
+ my @Addresses = RT::EmailParser->ParseEmailAddress($Addr);
+
+ my ($AddrObj) = grep ref $_, @Addresses;
+ unless ( $AddrObj ) {
+ return ( undef, undef );
+ }
+
+ return ( $AddrObj->address, $AddrObj->phrase );
+}
+
+=head2 DeleteRecipientsFromHead HEAD RECIPIENTS
+
+Gets a head object and list of addresses.
+Deletes addresses from To, Cc or Bcc fields.
+
+=cut
+
+sub DeleteRecipientsFromHead {
+ my $head = shift;
+ my %skip = map { lc $_ => 1 } @_;
+
+ foreach my $field ( qw(To Cc Bcc) ) {
+ $head->set( $field =>
+ join ', ', map $_->format, grep !$skip{ lc $_->address },
+ Email::Address->parse( $head->get( $field ) )
+ );
+ }
+}
+
+sub GenMessageId {
+ my %args = (
+ Ticket => undef,
+ Scrip => undef,
+ ScripAction => undef,
+ @_
+ );
+ my $org = RT->Config->Get('Organization');
+ my $ticket_id = ( ref $args{'Ticket'}? $args{'Ticket'}->id : $args{'Ticket'} ) || 0;
+ my $scrip_id = ( ref $args{'Scrip'}? $args{'Scrip'}->id : $args{'Scrip'} ) || 0;
+ my $sent = ( ref $args{'ScripAction'}? $args{'ScripAction'}->{'_Message_ID'} : 0 ) || 0;
+
+ return "<rt-". $RT::VERSION ."-". $$ ."-". CORE::time() ."-". int(rand(2000)) .'.'
+ . $ticket_id ."-". $scrip_id ."-". $sent ."@". $org .">" ;
+}
+
+sub SetInReplyTo {
+ my %args = (
+ Message => undef,
+ InReplyTo => undef,
+ Ticket => undef,
+ @_
+ );
+ return unless $args{'Message'} && $args{'InReplyTo'};
+
+ my $get_header = sub {
+ my @res;
+ if ( $args{'InReplyTo'}->isa('MIME::Entity') ) {
+ @res = $args{'InReplyTo'}->head->get( shift );
+ } else {
+ @res = $args{'InReplyTo'}->GetHeader( shift ) || '';
+ }
+ return grep length, map { split /\s+/m, $_ } grep defined, @res;
+ };
+
+ my @id = $get_header->('Message-ID');
+ #XXX: custom header should begin with X- otherwise is violation of the standard
+ my @rtid = $get_header->('RT-Message-ID');
+ my @references = $get_header->('References');
+ unless ( @references ) {
+ @references = $get_header->('In-Reply-To');
+ }
+ push @references, @id, @rtid;
+ if ( $args{'Ticket'} ) {
+ my $pseudo_ref = '<RT-Ticket-'. $args{'Ticket'}->id .'@'. RT->Config->Get('Organization') .'>';
+ push @references, $pseudo_ref unless grep $_ eq $pseudo_ref, @references;
+ }
+ @references = splice @references, 4, -6
+ if @references > 10;
+
+ my $mail = $args{'Message'};
+ $mail->head->set( 'In-Reply-To' => Encode::encode_utf8(join ' ', @rtid? (@rtid) : (@id)) ) if @id || @rtid;
+ $mail->head->set( 'References' => Encode::encode_utf8(join ' ', @references) );
+}
+
+sub ExtractTicketId {
+ my $entity = shift;
+
+ my $subject = $entity->head->get('Subject') || '';
+ chomp $subject;
+ return ParseTicketId( $subject );
+}
+
+sub ParseTicketId {
+ my $Subject = shift;
+
+ my $rtname = RT->Config->Get('rtname');
+ my $test_name = RT->Config->Get('EmailSubjectTagRegex') || qr/\Q$rtname\E/i;
+
+ my $id;
+ if ( $Subject =~ s/\[$test_name\s+\#(\d+)\s*\]//i ) {
+ $id = $1;
+ } else {
+ foreach my $tag ( RT->System->SubjectTag ) {
+ next unless $Subject =~ s/\[\Q$tag\E\s+\#(\d+)\s*\]//i;
+ $id = $1;
+ last;
+ }
+ }
+ return undef unless $id;
+
+ $RT::Logger->debug("Found a ticket ID. It's $id");
+ return $id;
+}
+
+sub AddSubjectTag {
+ my $subject = shift;
+ my $ticket = shift;
+ unless ( ref $ticket ) {
+ my $tmp = RT::Ticket->new( RT->SystemUser );
+ $tmp->Load( $ticket );
+ $ticket = $tmp;
+ }
+ my $id = $ticket->id;
+ my $queue_tag = $ticket->QueueObj->SubjectTag;
+
+ my $tag_re = RT->Config->Get('EmailSubjectTagRegex');
+ unless ( $tag_re ) {
+ my $tag = $queue_tag || RT->Config->Get('rtname');
+ $tag_re = qr/\Q$tag\E/;
+ } elsif ( $queue_tag ) {
+ $tag_re = qr/$tag_re|\Q$queue_tag\E/;
+ }
+ return $subject if $subject =~ /\[$tag_re\s+#$id\]/;
+
+ $subject =~ s/(\r\n|\n|\s)/ /g;
+ chomp $subject;
+ return "[". ($queue_tag || RT->Config->Get('rtname')) ." #$id] $subject";
+}
+
+
+=head2 Gateway ARGSREF
+
+
+Takes parameters:
+
+ action
+ queue
+ message
+
+
+This performs all the "guts" of the mail rt-mailgate program, and is
+designed to be called from the web interface with a message, user
+object, and so on.
+
+Can also take an optional 'ticket' parameter; this ticket id overrides
+any ticket id found in the subject.
+
+Returns:
+
+ An array of:
+
+ (status code, message, optional ticket object)
+
+ status code is a numeric value.
+
+ for temporary failures, the status code should be -75
+
+ for permanent failures which are handled by RT, the status code
+ should be 0
+
+ for succces, the status code should be 1
+
+
+
+=cut
+
+sub _LoadPlugins {
+ my @mail_plugins = @_;
+
+ my @res;
+ foreach my $plugin (@mail_plugins) {
+ if ( ref($plugin) eq "CODE" ) {
+ push @res, $plugin;
+ } elsif ( !ref $plugin ) {
+ my $Class = $plugin;
+ $Class = "RT::Interface::Email::" . $Class
+ unless $Class =~ /^RT::/;
+ $Class->require or
+ do { $RT::Logger->error("Couldn't load $Class: $@"); next };
+
+ no strict 'refs';
+ unless ( defined *{ $Class . "::GetCurrentUser" }{CODE} ) {
+ $RT::Logger->crit( "No GetCurrentUser code found in $Class module");
+ next;
+ }
+ push @res, $Class;
+ } else {
+ $RT::Logger->crit( "$plugin - is not class name or code reference");
+ }
+ }
+ return @res;
+}
+
+sub Gateway {
+ my $argsref = shift;
+ my %args = (
+ action => 'correspond',
+ queue => '1',
+ ticket => undef,
+ message => undef,
+ %$argsref
+ );
+
+ my $SystemTicket;
+ my $Right;
+
+ # Validate the action
+ my ( $status, @actions ) = IsCorrectAction( $args{'action'} );
+ unless ($status) {
+ return (
+ -75,
+ "Invalid 'action' parameter "
+ . $actions[0]
+ . " for queue "
+ . $args{'queue'},
+ undef
+ );
+ }
+
+ my $parser = RT::EmailParser->new();
+ $parser->SmartParseMIMEEntityFromScalar(
+ Message => $args{'message'},
+ Decode => 0,
+ Exact => 1,
+ );
+
+ my $Message = $parser->Entity();
+ unless ($Message) {
+ MailError(
+ Subject => "RT Bounce: Unparseable message",
+ Explanation => "RT couldn't process the message below",
+ Attach => $args{'message'}
+ );
+
+ return ( 0,
+ "Failed to parse this message. Something is likely badly wrong with the message"
+ );
+ }
+
+ my @mail_plugins = grep $_, RT->Config->Get('MailPlugins');
+ push @mail_plugins, "Auth::MailFrom" unless @mail_plugins;
+ @mail_plugins = _LoadPlugins( @mail_plugins );
+
+ my %skip_plugin;
+ foreach my $class( grep !ref, @mail_plugins ) {
+ # check if we should apply filter before decoding
+ my $check_cb = do {
+ no strict 'refs';
+ *{ $class . "::ApplyBeforeDecode" }{CODE};
+ };
+ next unless defined $check_cb;
+ next unless $check_cb->(
+ Message => $Message,
+ RawMessageRef => \$args{'message'},
+ );
+
+ $skip_plugin{ $class }++;
+
+ my $Code = do {
+ no strict 'refs';
+ *{ $class . "::GetCurrentUser" }{CODE};
+ };
+ my ($status, $msg) = $Code->(
+ Message => $Message,
+ RawMessageRef => \$args{'message'},
+ );
+ next if $status > 0;
+
+ if ( $status == -2 ) {
+ return (1, $msg, undef);
+ } elsif ( $status == -1 ) {
+ return (0, $msg, undef);
+ }
+ }
+ @mail_plugins = grep !$skip_plugin{"$_"}, @mail_plugins;
+ $parser->_DecodeBodies;
+ $parser->RescueOutlook;
+ $parser->_PostProcessNewEntity;
+
+ my $head = $Message->head;
+ my $ErrorsTo = ParseErrorsToAddressFromHead( $head );
+ my $Sender = (ParseSenderAddressFromHead( $head ))[0];
+ my $From = $head->get("From");
+ chomp $From if defined $From;
+
+ my $MessageId = $head->get('Message-ID')
+ || "<no-message-id-". time . rand(2000) .'@'. RT->Config->Get('Organization') .'>';
+
+ #Pull apart the subject line
+ my $Subject = $head->get('Subject') || '';
+ chomp $Subject;
+
+ # Lets check for mail loops of various sorts.
+ my ($should_store_machine_generated_message, $IsALoop, $result);
+ ( $should_store_machine_generated_message, $ErrorsTo, $result, $IsALoop ) =
+ _HandleMachineGeneratedMail(
+ Message => $Message,
+ ErrorsTo => $ErrorsTo,
+ Subject => $Subject,
+ MessageId => $MessageId
+ );
+
+ # Do not pass loop messages to MailPlugins, to make sure the loop
+ # is broken, unless $RT::StoreLoops is set.
+ if ($IsALoop && !$should_store_machine_generated_message) {
+ return ( 0, $result, undef );
+ }
+ # }}}
+
+ $args{'ticket'} ||= ExtractTicketId( $Message );
+
+ # ExtractTicketId may have been overridden, and edited the Subject
+ my $NewSubject = $Message->head->get('Subject');
+ chomp $NewSubject;
+
+ $SystemTicket = RT::Ticket->new( RT->SystemUser );
+ $SystemTicket->Load( $args{'ticket'} ) if ( $args{'ticket'} ) ;
+ if ( $SystemTicket->id ) {
+ $Right = 'ReplyToTicket';
+ } else {
+ $Right = 'CreateTicket';
+ }
+
+ #Set up a queue object
+ my $SystemQueueObj = RT::Queue->new( RT->SystemUser );
+ $SystemQueueObj->Load( $args{'queue'} );
+
+ # We can safely have no queue of we have a known-good ticket
+ unless ( $SystemTicket->id || $SystemQueueObj->id ) {
+ return ( -75, "RT couldn't find the queue: " . $args{'queue'}, undef );
+ }
+
+ my ($AuthStat, $CurrentUser, $error) = GetAuthenticationLevel(
+ MailPlugins => \@mail_plugins,
+ Actions => \@actions,
+ Message => $Message,
+ RawMessageRef => \$args{message},
+ SystemTicket => $SystemTicket,
+ SystemQueue => $SystemQueueObj,
+ );
+
+ # If authentication fails and no new user was created, get out.
+ if ( !$CurrentUser || !$CurrentUser->id || $AuthStat == -1 ) {
+
+ # If the plugins refused to create one, they lose.
+ unless ( $AuthStat == -1 ) {
+ _NoAuthorizedUserFound(
+ Right => $Right,
+ Message => $Message,
+ Requestor => $ErrorsTo,
+ Queue => $args{'queue'}
+ );
+
+ }
+ return ( 0, "Could not load a valid user", undef );
+ }
+
+ # If we got a user, but they don't have the right to say things
+ if ( $AuthStat == 0 ) {
+ MailError(
+ To => $ErrorsTo,
+ Subject => "Permission Denied",
+ Explanation =>
+ "You do not have permission to communicate with RT",
+ MIMEObj => $Message
+ );
+ return (
+ 0,
+ ($CurrentUser->EmailAddress || $CurrentUser->Name)
+ . " ($Sender) tried to submit a message to "
+ . $args{'Queue'}
+ . " without permission.",
+ undef
+ );
+ }
+
+
+ unless ($should_store_machine_generated_message) {
+ return ( 0, $result, undef );
+ }
+
+ # if plugin's updated SystemTicket then update arguments
+ $args{'ticket'} = $SystemTicket->Id if $SystemTicket && $SystemTicket->Id;
+
+ my $Ticket = RT::Ticket->new($CurrentUser);
+
+ if ( !$args{'ticket'} && grep /^(comment|correspond)$/, @actions )
+ {
+
+ my @Cc;
+ my @Requestors = ( $CurrentUser->id );
+
+ if (RT->Config->Get('ParseNewMessageForTicketCcs')) {
+ @Cc = ParseCcAddressesFromHead(
+ Head => $head,
+ CurrentUser => $CurrentUser,
+ QueueObj => $SystemQueueObj
+ );
+ }
+
+ $head->replace('X-RT-Interface' => 'Email');
+
+ my ( $id, $Transaction, $ErrStr ) = $Ticket->Create(
+ Queue => $SystemQueueObj->Id,
+ Subject => $NewSubject,
+ Requestor => \@Requestors,
+ Cc => \@Cc,
+ MIMEObj => $Message
+ );
+ if ( $id == 0 ) {
+ MailError(
+ To => $ErrorsTo,
+ Subject => "Ticket creation failed: $Subject",
+ Explanation => $ErrStr,
+ MIMEObj => $Message
+ );
+ return ( 0, "Ticket creation From: $From failed: $ErrStr", $Ticket );
+ }
+
+ # strip comments&corresponds from the actions we don't need
+ # to record them if we've created the ticket just now
+ @actions = grep !/^(comment|correspond)$/, @actions;
+ $args{'ticket'} = $id;
+
+ } elsif ( $args{'ticket'} ) {
+
+ $Ticket->Load( $args{'ticket'} );
+ unless ( $Ticket->Id ) {
+ my $error = "Could not find a ticket with id " . $args{'ticket'};
+ MailError(
+ To => $ErrorsTo,
+ Subject => "Message not recorded: $Subject",
+ Explanation => $error,
+ MIMEObj => $Message
+ );
+
+ return ( 0, $error );
+ }
+ $args{'ticket'} = $Ticket->id;
+ } else {
+ return ( 1, "Success", $Ticket );
+ }
+
+ # }}}
+
+ my $unsafe_actions = RT->Config->Get('UnsafeEmailCommands');
+ foreach my $action (@actions) {
+
+ # If the action is comment, add a comment.
+ if ( $action =~ /^(?:comment|correspond)$/i ) {
+ my $method = ucfirst lc $action;
+ my ( $status, $msg ) = $Ticket->$method( MIMEObj => $Message );
+ unless ($status) {
+
+ #Warn the sender that we couldn't actually submit the comment.
+ MailError(
+ To => $ErrorsTo,
+ Subject => "Message not recorded ($method): $Subject",
+ Explanation => $msg,
+ MIMEObj => $Message
+ );
+ return ( 0, "Message From: $From not recorded: $msg", $Ticket );
+ }
+ } elsif ($unsafe_actions) {
+ my ( $status, $msg ) = _RunUnsafeAction(
+ Action => $action,
+ ErrorsTo => $ErrorsTo,
+ Message => $Message,
+ Ticket => $Ticket,
+ CurrentUser => $CurrentUser,
+ );
+ return ($status, $msg, $Ticket) unless $status == 1;
+ }
+ }
+ return ( 1, "Success", $Ticket );
+}
+
+=head2 GetAuthenticationLevel
+
+ # Authentication Level
+ # -1 - Get out. this user has been explicitly declined
+ # 0 - User may not do anything (Not used at the moment)
+ # 1 - Normal user
+ # 2 - User is allowed to specify status updates etc. a la enhanced-mailgate
+
+=cut
+
+sub GetAuthenticationLevel {
+ my %args = (
+ MailPlugins => [],
+ Actions => [],
+ Message => undef,
+ RawMessageRef => undef,
+ SystemTicket => undef,
+ SystemQueue => undef,
+ @_,
+ );
+
+ my ( $CurrentUser, $AuthStat, $error );
+
+ # Initalize AuthStat so comparisons work correctly
+ $AuthStat = -9999999;
+
+ # if plugin returns AuthStat -2 we skip action
+ # NOTE: this is experimental API and it would be changed
+ my %skip_action = ();
+
+ # Since this needs loading, no matter what
+ foreach (@{ $args{MailPlugins} }) {
+ my ($Code, $NewAuthStat);
+ if ( ref($_) eq "CODE" ) {
+ $Code = $_;
+ } else {
+ no strict 'refs';
+ $Code = *{ $_ . "::GetCurrentUser" }{CODE};
+ }
+
+ foreach my $action (@{ $args{Actions} }) {
+ ( $CurrentUser, $NewAuthStat ) = $Code->(
+ Message => $args{Message},
+ RawMessageRef => $args{RawMessageRef},
+ CurrentUser => $CurrentUser,
+ AuthLevel => $AuthStat,
+ Action => $action,
+ Ticket => $args{SystemTicket},
+ Queue => $args{SystemQueue},
+ );
+
+# You get the highest level of authentication you were assigned, unless you get the magic -1
+# If a module returns a "-1" then we discard the ticket, so.
+ $AuthStat = $NewAuthStat
+ if ( $NewAuthStat > $AuthStat or $NewAuthStat == -1 or $NewAuthStat == -2 );
+
+ last if $AuthStat == -1;
+ $skip_action{$action}++ if $AuthStat == -2;
+ }
+
+ # strip actions we should skip
+ @{$args{Actions}} = grep !$skip_action{$_}, @{$args{Actions}}
+ if $AuthStat == -2;
+ last unless @{$args{Actions}};
+
+ last if $AuthStat == -1;
+ }
+
+ return $AuthStat if !wantarray;
+
+ return ($AuthStat, $CurrentUser, $error);
+}
+
+sub _RunUnsafeAction {
+ my %args = (
+ Action => undef,
+ ErrorsTo => undef,
+ Message => undef,
+ Ticket => undef,
+ CurrentUser => undef,
+ @_
+ );
+
+ my $From = $args{Message}->head->get("From");
+
+ if ( $args{'Action'} =~ /^take$/i ) {
+ my ( $status, $msg ) = $args{'Ticket'}->SetOwner( $args{'CurrentUser'}->id );
+ unless ($status) {
+ MailError(
+ To => $args{'ErrorsTo'},
+ Subject => "Ticket not taken",
+ Explanation => $msg,
+ MIMEObj => $args{'Message'}
+ );
+ return ( 0, "Ticket not taken, by email From: $From" );
+ }
+ } elsif ( $args{'Action'} =~ /^resolve$/i ) {
+ my $new_status = $args{'Ticket'}->FirstInactiveStatus;
+ if ($new_status) {
+ my ( $status, $msg ) = $args{'Ticket'}->SetStatus($new_status);
+ unless ($status) {
+
+ #Warn the sender that we couldn't actually submit the comment.
+ MailError(
+ To => $args{'ErrorsTo'},
+ Subject => "Ticket not resolved",
+ Explanation => $msg,
+ MIMEObj => $args{'Message'}
+ );
+ return ( 0, "Ticket not resolved, by email From: $From" );
+ }
+ }
+ } else {
+ return ( 0, "Not supported unsafe action $args{'Action'}, by email From: $From", $args{'Ticket'} );
+ }
+ return ( 1, "Success" );
+}
+
+=head2 _NoAuthorizedUserFound
+
+Emails the RT Owner and the requestor when the auth plugins return "No auth user found"
+
+=cut
+
+sub _NoAuthorizedUserFound {
+ my %args = (
+ Right => undef,
+ Message => undef,
+ Requestor => undef,
+ Queue => undef,
+ @_
+ );
+
+ # Notify the RT Admin of the failure.
+ MailError(
+ To => RT->Config->Get('OwnerEmail'),
+ Subject => "Could not load a valid user",
+ Explanation => <<EOT,
+RT could not load a valid user, and RT's configuration does not allow
+for the creation of a new user for this email (@{[$args{Requestor}]}).
+
+You might need to grant 'Everyone' the right '@{[$args{Right}]}' for the
+queue @{[$args{'Queue'}]}.
+
+EOT
+ MIMEObj => $args{'Message'},
+ LogLevel => 'error'
+ );
+
+ # Also notify the requestor that his request has been dropped.
+ if ($args{'Requestor'} ne RT->Config->Get('OwnerEmail')) {
+ MailError(
+ To => $args{'Requestor'},
+ Subject => "Could not load a valid user",
+ Explanation => <<EOT,
+RT could not load a valid user, and RT's configuration does not allow
+for the creation of a new user for your email.
+
+EOT
+ MIMEObj => $args{'Message'},
+ LogLevel => 'error'
+ );
+ }
+}
+
+=head2 _HandleMachineGeneratedMail
+
+Takes named params:
+ Message
+ ErrorsTo
+ Subject
+
+Checks the message to see if it's a bounce, if it looks like a loop, if it's autogenerated, etc.
+Returns a triple of ("Should we continue (boolean)", "New value for $ErrorsTo", "Status message",
+"This message appears to be a loop (boolean)" );
+
+=cut
+
+sub _HandleMachineGeneratedMail {
+ my %args = ( Message => undef, ErrorsTo => undef, Subject => undef, MessageId => undef, @_ );
+ my $head = $args{'Message'}->head;
+ my $ErrorsTo = $args{'ErrorsTo'};
+
+ my $IsBounce = CheckForBounce($head);
+
+ my $IsAutoGenerated = CheckForAutoGenerated($head);
+
+ my $IsSuspiciousSender = CheckForSuspiciousSender($head);
+
+ my $IsALoop = CheckForLoops($head);
+
+ my $SquelchReplies = 0;
+
+ my $owner_mail = RT->Config->Get('OwnerEmail');
+
+ #If the message is autogenerated, we need to know, so we can not
+ # send mail to the sender
+ if ( $IsBounce || $IsSuspiciousSender || $IsAutoGenerated || $IsALoop ) {
+ $SquelchReplies = 1;
+ $ErrorsTo = $owner_mail;
+ }
+
+ # Warn someone if it's a loop, before we drop it on the ground
+ if ($IsALoop) {
+ $RT::Logger->crit("RT Received mail (".$args{MessageId}.") from itself.");
+
+ #Should we mail it to RTOwner?
+ if ( RT->Config->Get('LoopsToRTOwner') ) {
+ MailError(
+ To => $owner_mail,
+ Subject => "RT Bounce: ".$args{'Subject'},
+ Explanation => "RT thinks this message may be a bounce",
+ MIMEObj => $args{Message}
+ );
+ }
+
+ #Do we actually want to store it?
+ return ( 0, $ErrorsTo, "Message Bounced", $IsALoop )
+ unless RT->Config->Get('StoreLoops');
+ }
+
+ # Squelch replies if necessary
+ # Don't let the user stuff the RT-Squelch-Replies-To header.
+ if ( $head->get('RT-Squelch-Replies-To') ) {
+ $head->replace(
+ 'RT-Relocated-Squelch-Replies-To',
+ $head->get('RT-Squelch-Replies-To')
+ );
+ $head->delete('RT-Squelch-Replies-To');
+ }
+
+ if ($SquelchReplies) {
+
+ # Squelch replies to the sender, and also leave a clue to
+ # allow us to squelch ALL outbound messages. This way we
+ # can punt the logic of "what to do when we get a bounce"
+ # to the scrip. We might want to notify nobody. Or just
+ # the RT Owner. Or maybe all Privileged watchers.
+ my ( $Sender, $junk ) = ParseSenderAddressFromHead($head);
+ $head->replace( 'RT-Squelch-Replies-To', $Sender );
+ $head->replace( 'RT-DetectedAutoGenerated', 'true' );
+ }
+ return ( 1, $ErrorsTo, "Handled machine detection", $IsALoop );
+}
+
+=head2 IsCorrectAction
+
+Returns a list of valid actions we've found for this message
+
+=cut
+
+sub IsCorrectAction {
+ my $action = shift;
+ my @actions = grep $_, split /-/, $action;
+ return ( 0, '(no value)' ) unless @actions;
+ foreach ( @actions ) {
+ return ( 0, $_ ) unless /^(?:comment|correspond|take|resolve)$/;
+ }
+ return ( 1, @actions );
+}
+
+sub _RecordSendEmailFailure {
+ my $ticket = shift;
+ if ($ticket) {
+ $ticket->_RecordNote(
+ NoteType => 'SystemError',
+ Content => "Sending the previous mail has failed. Please contact your admin, they can find more details in the logs.",
+ );
+ return 1;
+ }
+ else {
+ $RT::Logger->error( "Can't record send email failure as ticket is missing" );
+ return;
+ }
+}
+
+RT::Base->_ImportOverlays();
+
+1;
generated by cgit v1.1 at 2024-06-27 13:49:00 +0000