Koha/C4/Message.pm
Joonas Kylmälä eb1961f682 Bug 28230: Store C4::Message->{metadata} as Perl string always
When loading C4::Message->{metadata} we load it as perl string in all
other cases, see e.g. the subroutine find_last_message(). In this one
case we incorrectly populate the C4::Message->{metadata} as an UTF-8
octet instead of a Perl string. This causes a problem later on because
encode_utf8 later on in the line:

YAML::XS::Load(Encode::encode_utf8($self->{metadata}));

excepts a perl string and not a UTF-8 octet (please refer to the
functions perldoc). This breaks the encoding and causes an internal
server error:

To test the error is gone:
1. Create biblio with "AE" (bugzilla doesn't let me write the real
letter here, see it in the bugzilla comments) in title
2. Enable RenewalSendNotice
3. Enable "Item checkout and renewal" message preference for patron
4. Checkout an item from biblio "AE" to patron
5. Try to renew the patron's loan and notice the renewal fails
6. Apply patch and restart plack
7. Notice renewal works now and message h's the AE letter displayed correctly

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
2021-04-28 11:07:06 +02:00

416 lines
10 KiB
Perl

package C4::Message;
# Copyright Liblime 2009
# Copyright Catalyst IT 2012
#
# This file is part of Koha.
#
# Koha is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# Koha 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 Koha; if not, see <http://www.gnu.org/licenses>.
use strict;
use warnings;
use C4::Context;
use C4::Letters;
use YAML::XS;
use Encode;
use Carp;
=head1 NAME
C4::Message - object for messages in the message_queue table
=head1 SYNOPSIS
How to add a new message to the queue:
use C4::Message;
use C4::Items;
my $borrower = { borrowernumber => 1 };
my $item = Koha::Items->find($itemnumber)->unblessed;
my $letter = C4::Letters::GetPreparedLetter (
module => 'circulation',
letter_code => 'CHECKOUT',
branchcode => $branch,
tables => {
'biblio', $item->{biblionumber},
'biblioitems', $item->{biblionumber},
},
);
C4::Message->enqueue($letter, $borrower->{borrowernumber}, 'email');
How to update a borrower's last checkout message:
use C4::Message;
my $borrower = { borrowernumber => 1 };
my $message = C4::Message->find_last_message($borrower, 'CHECKOUT', 'email');
$message->append("you also checked out some other book....");
$message->update;
=head1 DESCRIPTION
This module presents an OO interface to the message_queue. Previously,
you could only add messages to the message_queue via
C<C4::Letters::EnqueueMessage()>. With this module, you can also get
previously inserted messages, manipulate them, and save them back to the
database.
=cut
our $AUTOLOAD;
=head2 Class Methods
=head3 C4::Message->new(\%attributes)
This method creates an in-memory version of a message object.
=cut
# C4::Message->new(\%attributes) -- constructor
sub new {
my ($class, $opts) = @_;
$opts ||= {};
bless {%$opts} => $class;
}
=head3 C4::Message->find($id)
This method searches the message_queue table for a row with the given
C<message_id> and it'll return a C4::Message object if it finds one.
=cut
# C4::Message->find($id) -- find a message by its message_id
sub find {
my ($class, $id) = @_;
my $dbh = C4::Context->dbh;
my $msgs = $dbh->selectall_arrayref(
qq{SELECT * FROM message_queue WHERE message_id = ?},
{ Slice => {} },
$id,
);
if (@$msgs) {
return $class->new($msgs->[0]);
} else {
return;
}
}
=head3 C4::Message->find_last_message($borrower, $letter_code, $transport)
This method is used to get the borrower's most recent, pending, check-in or
checkout message. (This makes it possible to add more information to the
message before it gets sent out.)
=cut
# C4::Message->find_last_message($borrower, $letter_code, $transport)
# -- get the borrower's most recent pending checkin or checkout notification
sub find_last_message {
my ($class, $borrower, $letter_code, $transport) = @_;
# $type is the message_transport_type
$transport ||= 'email';
my $dbh = C4::Context->dbh;
my $msgs = $dbh->selectall_arrayref(
qq{
SELECT *
FROM message_queue
WHERE status = 'pending'
AND borrowernumber = ?
AND letter_code = ?
AND message_transport_type = ?
},
{ Slice => {} },
$borrower->{borrowernumber},
$letter_code,
$transport,
);
if (@$msgs) {
return $class->new($msgs->[0]);
} else {
return;
}
}
=head3 C4::Message->enqueue($letter, $borrower, $transport)
This is a front-end for C<C4::Letters::EnqueueLetter()> that adds metadata to
the message.
=cut
# C4::Message->enqueue($letter, $borrower, $transport)
sub enqueue {
my ($class, $letter, $borrower, $transport) = @_;
my $metadata = _metadata($letter);
my $to_address = _to_address($borrower, $transport);
# Same as render_metadata
my $format ||= sub { $_[0] || "" };
my $body = join('', map { $format->($_) } @{$metadata->{body}});
$letter->{content} = $metadata->{header} . $body . $metadata->{footer};
$letter->{metadata} = Encode::decode_utf8(Dump($metadata));
C4::Letters::EnqueueLetter({
letter => $letter,
borrowernumber => $borrower->{borrowernumber},
message_transport_type => $transport,
to_address => $to_address,
});
}
# based on message $transport, pick an appropriate address to send to
sub _to_address {
my ($borrower, $transport) = @_;
my $address;
if ($transport eq 'email') {
$address = $borrower->{email}
|| $borrower->{emailpro}
|| $borrower->{B_email};
} elsif ($transport eq 'sms') {
$address = $borrower->{smsalertnumber}
|| $borrower->{phone}
|| $borrower->{phonepro}
|| $borrower->{B_phone};
} else {
warn "'$transport' is an unknown message transport.";
}
if (not defined $address) {
warn "An appropriate $transport address "
. "for borrower $borrower->{userid} "
. "could not be found.";
}
return $address;
}
# _metadata($letter) -- return the letter split into head/body/footer
sub _metadata {
my ($letter) = @_;
if ($letter->{content} =~ /----/) {
my ($header, $body, $footer) = split(/----\r?\n?/, $letter->{content});
return {
header => $header,
body => [$body],
footer => $footer,
};
} else {
return {
header => '',
body => [$letter->{content}],
footer => '',
};
}
}
=head2 Instance Methods
=head3 $message->update()
This saves the $message object back to the database. It needs to have
already been created via C<enqueue> for this to work.
=cut
# $object->update -- save object to database
sub update {
my ($self) = @_;
my $dbh = C4::Context->dbh;
$dbh->do(
qq{
UPDATE message_queue
SET
borrowernumber = ?,
subject = ?,
content = ?,
metadata = ?,
letter_code = ?,
message_transport_type = ?,
status = ?,
time_queued = ?,
to_address = ?,
from_address = ?,
content_type = ?
WHERE message_id = ?
},
{},
$self->borrowernumber,
$self->subject,
$self->content,
$self->{metadata}, # we want the raw YAML here
$self->letter_code,
$self->message_transport_type,
$self->status,
$self->time_queued,
$self->to_address,
$self->from_address,
$self->content_type,
$self->message_id
);
}
=head3 $message->metadata(\%new_metadata)
This method automatically serializes and deserializes the metadata
attribute. (It is stored in YAML format.)
=cut
# $object->metadata -- this is a YAML serialized column that contains a
# structured representation of $object->content
sub metadata {
my ($self, $data) = @_;
if ($data) {
$data->{header} ||= '';
$data->{body} ||= [];
$data->{footer} ||= '';
$self->{metadata} = Encode::decode_utf8(Dump($data));
$self->content($self->render_metadata);
return $data;
} else {
return YAML::XS::Load(Encode::encode_utf8($self->{metadata}));
}
}
# turn $object->metadata into a string suitable for $object->content
sub render_metadata {
my ($self, $format) = @_;
$format ||= sub { $_[0] || "" };
my $metadata = $self->metadata;
my $body = $metadata->{body};
my $text = join('', map { $format->($_) } @$body);
return $metadata->{header} . $text . $metadata->{footer};
}
=head3 $message->append(\%letter)
If passed a hashref, this method will assume that the hashref is in the form
that C<C4::Letters::getletter()> returns. It will append the body of the
letter to the message.
=head3 $message->append($string)
If passed a string, it'll append the string to the message.
=cut
# $object->append($letter_or_item) -- add a new item to a message's content
sub append {
my ($self, $letter_or_item, $format) = @_;
my ( $item, $header, $footer );
if (ref($letter_or_item)) {
my $letter = $letter_or_item;
my $metadata = _metadata($letter);
$header = $metadata->{header};
$footer = $metadata->{footer};
$item = $metadata->{body}->[0];
} else {
$item = $letter_or_item;
}
if (not $self->metadata) {
carp "Can't append to messages that don't have metadata.";
return;
}
my $metadata = $self->metadata;
push @{$metadata->{body}}, $item;
$metadata->{header} = $header;
$metadata->{footer} = $footer;
$self->metadata($metadata);
my $new_content = $self->render_metadata($format);
return $self->content($new_content);
}
=head2 Attributes Accessors
=head3 $message->message_id
=cut
=head3 $message->borrowernumber
=cut
=head3 $message->subject
=cut
=head3 $message->content
=cut
=head3 $message->metadata
=cut
=head3 $message->letter_code
=cut
=head3 $message->message_transport_type
=cut
=head3 $message->status
=cut
=head3 $message->time_queued
=cut
=head3 $message->to_address
=cut
=head3 $message->from_address
=cut
=head3 $message->content_type
=cut
# $object->$method -- treat keys as methods
sub AUTOLOAD {
my ($self, @args) = @_;
my $attr = $AUTOLOAD;
$attr =~ s/.*://;
if (ref($self->{$attr}) eq 'CODE') {
$self->{$attr}->($self, @args);
} else {
if (@args) {
$self->{$attr} = $args[0];
} else {
$self->{$attr};
}
}
}
sub DESTROY { }
1;
=head1 SEE ALSO
L<C4::Circulation>, L<C4::Letters>, L<C4::Members::Messaging>
=head1 AUTHOR
John Beppu <john.beppu@liblime.com>
=cut