RT 4.2.11, ticket#13852

[freeside.git] / rt / lib / RT / Crypt / GnuPG / CRLFHandle.pm

diff --git a/rt/lib/RT/Crypt/GnuPG/CRLFHandle.pm b/rt/lib/RT/Crypt/GnuPG/CRLFHandle.pm
new file mode 100644 (file)
index 0000000..74a4009
--- /dev/null
+++ b/rt/lib/RT/Crypt/GnuPG/CRLFHandle.pm
@@ -0,0 +1,70 @@
+# BEGIN BPS TAGGED BLOCK {{{
+#
+# COPYRIGHT:
+#
+# This software is Copyright (c) 1996-2015 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+# (Except where explicitly superseded by other copyright notices)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::Crypt::GnuPG::CRLFHandle;
+use strict;
+use warnings;
+
+use base qw(IO::Handle);
+
+# https://metacpan.org/module/MIME::Tools#Fuzzing-of-CRLF-and-newline-when-encoding-composing
+# means that the output of $entity->print contains lines terminated by
+# "\n"; however, signatures are generated off of the "correct" form of
+# the MIME entity, which uses "\r\n" as the newline separator.  This
+# class, used only when generating signatures, transparently munges "\n"
+# newlines into "\r\n" newlines such that the generated signature is
+# correct for the "\r\n"-newline version of the MIME entity which will
+# eventually be sent over the wire.
+
+sub print {
+    my ($self, @args) = (@_);
+    s/\r*\n/\x0D\x0A/g foreach @args;
+    return $self->SUPER::print( @args );
+}
+
+1;