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# This code is part of Perl distribution Mail-Message version 3.019.
# The POD got stripped from this file by OODoc version 3.05.
# For contributors see file ChangeLog.
# This software is copyright (c) 2001-2025 by Mark Overmeer.
# This is free software; you can redistribute it and/or modify it under
# the same terms as the Perl 5 programming language system itself.
# SPDX-License-Identifier: Artistic-1.0-Perl OR GPL-1.0-or-later
package Mail::Message::Body::File;{
our $VERSION = '3.019';
}
use base 'Mail::Message::Body';
use strict;
use warnings;
use Mail::Box::Parser;
use Mail::Message;
use Carp;
use File::Temp qw/tempfile/;
use File::Copy qw/copy/;
use Fcntl qw/SEEK_END/;
#--------------------
sub _data_from_filename(@)
{ my ($self, $filename) = @_;
open my $in, '<:raw', $filename
or $self->log(ERROR => "Unable to read file $filename for message body file: $!"), return;
my $file = $self->tempFilename;
open my $out, '>:raw', $file
or $self->log(ERROR => "Cannot write to temporary body file $file: $!"), return;
my $nrlines = 0;
local $_;
while(<$in>) { $out->print($_); $nrlines++ }
$self->{MMBF_nrlines} = $nrlines;
$self;
}
sub _data_from_filehandle(@)
{ my ($self, $fh) = @_;
my $file = $self->tempFilename;
my $nrlines = 0;
open my $out, '>:raw', $file
or $self->log(ERROR => "Cannot write to temporary body file $file: $!"), return;
local $_;
while(<$fh>)
{ $out->print($_);
$nrlines++;
}
$self->{MMBF_nrlines} = $nrlines;
$self;
}
sub _data_from_lines(@)
{ my ($self, $lines) = @_;
my $file = $self->tempFilename;
open my $out, '>:raw', $file
or $self->log(ERROR => "Cannot write to $file: $!"), return;
$out->print(@$lines);
$self->{MMBF_nrlines} = @$lines;
$self;
}
sub clone()
{ my $self = shift;
my $clone = ref($self)->new(based_on => $self);
copy $self->tempFilename, $clone->tempFilename
or return;
$clone->{MMBF_nrlines} = $self->{MMBF_nrlines};
$clone->{MMBF_size} = $self->{MMBF_size};
$self;
}
sub nrLines()
{ my $self = shift;
return $self->{MMBF_nrlines}
if defined $self->{MMBF_nrlines};
my $file = $self->tempFilename;
my $nrlines = 0;
open my $in, '<:raw', $file
or die "Cannot read from $file: $!\n";
local $_;
$nrlines++ while <$in>;
$self->{MMBF_nrlines} = $nrlines;
}
sub size()
{ my $self = shift;
return $self->{MMBF_size}
if exists $self->{MMBF_size};
my $size = eval { -s $self->tempFilename };
$size -= $self->nrLines
if $Mail::Message::crlf_platform; # remove count for extra CR's
$self->{MMBF_size} = $size;
}
sub string()
{ my $self = shift;
my $file = $self->tempFilename;
open my $in, '<:raw', $file
or die "Cannot read from $file: $!\n";
join '', $in->getlines;
}
sub lines()
{ my $self = shift;
my $file = $self->tempFilename;
open my $in, '<:raw', $file
or die "Cannot read from $file: $!\n";
my $r = $self->{MMBF_nrlines} = [ $in->getlines ];
wantarray ? @$r: $r;
}
sub file()
{ my $self = shift;
open my($tmp), '<:raw', $self->tempFilename;
$tmp;
}
sub print(;$)
{ my $self = shift;
my $fh = shift || select;
my $file = $self->tempFilename;
open my $in, '<:raw', $file
or croak "Cannot read from $file: $!\n";
$fh->print($_) while <$in>;
$in->close;
$self;
}
sub endsOnNewline()
{ my $self = shift;
my $file = $self->tempFilename;
open my $in, '<:raw', $file
or croak "Cannot read from $file: $!\n";
$in->seek(-1, SEEK_END);
$in->read(my $char, 1);
$char eq "\n" || $char eq "\r";
}
sub read($$;$@)
{ my ($self, $parser, $head, $bodytype) = splice @_, 0, 4;
my $file = $self->tempFilename;
open my $out, '>:raw', $file
or die "Cannot write to $file: $!.\n";
(my $begin, my $end, $self->{MMBF_nrlines}) = $parser->bodyAsFile($out, @_);
$out->close;
$self->fileLocation($begin, $end);
$self;
}
#--------------------
sub tempFilename(;$)
{ my $self = shift;
@_ ? ($self->{MMBF_filename} = shift)
: $self->{MMBF_filename} ? $self->{MMBF_filename}
: ($self->{MMBF_filename} = (tempfile)[1]);
}
#--------------------
sub DESTROY { unlink $_[0]->tempFilename }
1;
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