Mercurial > hg-stable
view contrib/buildrpm @ 29560:303e9300772a
sslutil: require TLS 1.1+ when supported
Currently, Mercurial will use TLS 1.0 or newer when connecting to
remote servers, selecting the highest TLS version supported by both
peers. On older Pythons, only TLS 1.0 is available. On newer Pythons,
TLS 1.1 and 1.2 should be available.
Security professionals recommend avoiding TLS 1.0 if possible.
PCI DSS 3.1 "strongly encourages" the use of TLS 1.2.
Known attacks like BEAST and POODLE exist against TLS 1.0 (although
mitigations are available and properly configured servers aren't
vulnerable).
I asked Eric Rescorla - Mozilla's resident crypto expert - whether
Mercurial should drop support for TLS 1.0. His response was
"if you can get away with it." Essentially, a number of servers on
the Internet don't support TLS 1.1+. This is why web browsers
continue to support TLS 1.0 despite desires from security experts.
This patch changes Mercurial's default behavior on modern Python
versions to require TLS 1.1+, thus avoiding known security issues
with TLS 1.0 and making Mercurial more secure by default. Rather
than drop TLS 1.0 support wholesale, we still allow TLS 1.0 to be
used if configured. This is a compromise solution - ideally we'd
disallow TLS 1.0. However, since we're not sure how many Mercurial
servers don't support TLS 1.1+ and we're not sure how much user
inconvenience this change will bring, I think it is prudent to ship
an escape hatch that still allows usage of TLS 1.0. In the default
case our users get better security. In the worst case, they are no
worse off than before this patch.
This patch has no effect when running on Python versions that don't
support TLS 1.1+.
As the added test shows, connecting to a server that doesn't
support TLS 1.1+ will display a warning message with a link to
our wiki, where we can guide people to configure their client to
allow less secure connections.
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Wed, 13 Jul 2016 21:35:54 -0700 |
parents | e7bd55db011b |
children | 5aac617a028d |
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#!/bin/bash -e # # Build a Mercurial RPM from the current repo # # Tested on # - Fedora 20 # - CentOS 5 # - centOS 6 . $(dirname $0)/packagelib.sh BUILD=1 RPMBUILDDIR="$PWD/rpmbuild" while [ "$1" ]; do case "$1" in --prepare ) shift BUILD= ;; --withpython | --with-python) shift PYTHONVER=2.7.10 PYTHONMD5=d7547558fd673bd9d38e2108c6b42521 ;; --rpmbuilddir ) shift RPMBUILDDIR="$1" shift ;; * ) echo "Invalid parameter $1!" 1>&2 exit 1 ;; esac done cd "`dirname $0`/.." specfile=$PWD/contrib/mercurial.spec if [ ! -f $specfile ]; then echo "Cannot find $specfile!" 1>&2 exit 1 fi if [ ! -d .hg ]; then echo 'You are not inside a Mercurial repository!' 1>&2 exit 1 fi gethgversion # TODO: handle distance/node set, and type set if [ -z "$type" ] ; then release=1 else release=0.9_$type fi if [ -n "$distance" ] ; then release=$release+$distance_$node fi if [ "$PYTHONVER" ]; then release=$release+$PYTHONVER RPMPYTHONVER=$PYTHONVER else RPMPYTHONVER=%{nil} fi mkdir -p $RPMBUILDDIR/{SOURCES,BUILD,SRPMS,RPMS} $HG archive -t tgz $RPMBUILDDIR/SOURCES/mercurial-$version-$release.tar.gz if [ "$PYTHONVER" ]; then ( mkdir -p build cd build PYTHON_SRCFILE=Python-$PYTHONVER.tgz [ -f $PYTHON_SRCFILE ] || curl -Lo $PYTHON_SRCFILE http://www.python.org/ftp/python/$PYTHONVER/$PYTHON_SRCFILE if [ "$PYTHONMD5" ]; then echo "$PYTHONMD5 $PYTHON_SRCFILE" | md5sum -w -c fi ln -f $PYTHON_SRCFILE $RPMBUILDDIR/SOURCES/$PYTHON_SRCFILE DOCUTILSVER=`sed -ne "s/^%global docutilsname docutils-//p" $specfile` DOCUTILS_SRCFILE=docutils-$DOCUTILSVER.tar.gz [ -f $DOCUTILS_SRCFILE ] || curl -Lo $DOCUTILS_SRCFILE http://downloads.sourceforge.net/project/docutils/docutils/$DOCUTILSVER/$DOCUTILS_SRCFILE DOCUTILSMD5=`sed -ne "s/^%global docutilsmd5 //p" $specfile` if [ "$DOCUTILSMD5" ]; then echo "$DOCUTILSMD5 $DOCUTILS_SRCFILE" | md5sum -w -c fi ln -f $DOCUTILS_SRCFILE $RPMBUILDDIR/SOURCES/$DOCUTILS_SRCFILE ) fi mkdir -p $RPMBUILDDIR/SPECS rpmspec=$RPMBUILDDIR/SPECS/mercurial.spec sed -e "s,^Version:.*,Version: $version," \ -e "s,^Release:.*,Release: $release," \ $specfile > $rpmspec echo >> $rpmspec echo "%changelog" >> $rpmspec if echo $version | grep '+' > /dev/null 2>&1; then latesttag="`echo $version | sed -e 's/+.*//'`" $HG log -r .:"$latesttag" -fM \ --template '{date|hgdate}\t{author}\t{desc|firstline}\n' | python -c ' import sys, time def datestr(date, format): return time.strftime(format, time.gmtime(float(date[0]) - date[1])) changelog = [] for l in sys.stdin.readlines(): tok = l.split("\t") hgdate = tuple(int(v) for v in tok[0].split()) changelog.append((datestr(hgdate, "%F"), tok[1], hgdate, tok[2])) prevtitle = "" for l in sorted(changelog, reverse=True): title = "* %s %s" % (datestr(l[2], "%a %b %d %Y"), l[1]) if prevtitle != title: prevtitle = title print print title print "- %s" % l[3].strip() ' >> $rpmspec else $HG log \ --template '{date|hgdate}\t{author}\t{desc|firstline}\n' \ .hgtags | python -c ' import sys, time def datestr(date, format): return time.strftime(format, time.gmtime(float(date[0]) - date[1])) for l in sys.stdin.readlines(): tok = l.split("\t") hgdate = tuple(int(v) for v in tok[0].split()) print "* %s %s\n- %s" % (datestr(hgdate, "%a %b %d %Y"), tok[1], tok[2]) ' >> $rpmspec fi sed -i \ -e "s/^%define withpython.*$/%define withpython $RPMPYTHONVER/" \ $rpmspec if [ "$BUILD" ]; then rpmbuild --define "_topdir $RPMBUILDDIR" -ba $rpmspec --clean if [ $? = 0 ]; then echo echo "Built packages for $version-$release:" find $RPMBUILDDIR/*RPMS/ -type f -newer $rpmspec fi else echo "Prepared sources for $version-$release $rpmspec are in $RPMBUILDDIR/SOURCES/ - use like:" echo "rpmbuild --define '_topdir $RPMBUILDDIR' -ba $rpmspec --clean" fi