commit:     95a67b7125a6fd3b8ef970d7c6f66b9bec91cfcc
Author:     Ralph Seichter <github <AT> seichter <DOT> de>
AuthorDate: Fri Mar 29 18:45:11 2019 +0000
Commit:     Michael Orlitzky <mjo <AT> gentoo <DOT> org>
CommitDate: Sun Mar 31 19:02:48 2019 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=95a67b71

mail-filter/opendkim: Added pre-start configuration checks

Added pre-start configuration checks for OpenRC and systemd.

Signed-off-by: Ralph Seichter <gentoo <AT> seichter.de>
Closes: https://bugs.gentoo.org/622604
Package-Manager: Portage-2.3.62, Repoman-2.3.11
Signed-off-by: Michael Orlitzky <mjo <AT> gentoo.org>

 mail-filter/opendkim/files/opendkim.init.r6    |  77 +++++++++
 mail-filter/opendkim/files/opendkim.service.r4 |  16 ++
 mail-filter/opendkim/opendkim-2.10.3-r9.ebuild | 223 +++++++++++++++++++++++++
 3 files changed, 316 insertions(+)

diff --git a/mail-filter/opendkim/files/opendkim.init.r6 
b/mail-filter/opendkim/files/opendkim.init.r6
new file mode 100644
index 00000000000..95aa971fd88
--- /dev/null
+++ b/mail-filter/opendkim/files/opendkim.init.r6
@@ -0,0 +1,77 @@
+#!/sbin/openrc-run
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+CONFFILE="/etc/opendkim/${RC_SVCNAME}.conf"
+required_files="${CONFFILE}"
+
+command="/usr/sbin/opendkim"
+pidfile="/run/${RC_SVCNAME}.pid"
+command_args="-P ${pidfile} -x ${CONFFILE} -p ${OPENDKIM_SOCKET}"
+
+depend() {
+       use dns logger net
+       before mta
+}
+
+check_cfg() {
+       #
+       # The opendkim.conf man page says,
+       #
+       #   For parameters that are Boolean in nature, only the first byte
+       #   of the value is processed... For negative values, the following
+       #   are accepted: "F", "f", "N", "n", "0".'
+       #
+       if grep --quiet '^[[:space:]]*Background[[:space:]]\+[FfNn0]' \
+                       "${CONFFILE}"; then
+               eerror "${RC_SVCNAME} cannot run in the foreground!"
+               return 1
+       fi
+       if ! ${command} -n ${command_args}; then
+               eerror "Configuration check failed"
+               return 1
+       fi
+}
+
+start_pre() {
+       # If this isn't a restart, make sure that the user's config isn't
+       # busted before we try to start the daemon (this will produce
+       # better error messages than if we just try to start it blindly).
+       #
+       # If, on the other hand, this *is* a restart, then the stop_pre
+       # action will have ensured that the config is usable and we don't
+       # need to do that again.
+       if [ "${RC_CMD}" != "restart" ]; then
+               check_cfg || return $?
+       fi
+
+       if [ -S "${OPENDKIM_SOCKET}" ] && ! fuser -s "${OPENDKIM_SOCKET}"; then
+               # Remove stalled Unix socket if no other process is
+               # using it
+               if ! rm "${UNIX_SOCKET}"; then
+                       eerror "failed to remove stale unix socket 
${OPENDKIM_SOCKET}"
+                       return 2
+               fi
+       fi
+
+       # This relies on the "local:" prefix being there, but the conf.d
+       # file explicitly states that it's not optional (contrary to what
+       # the opendkim(8) man page says).
+       if [ "${OPENDKIM_SOCKET#local:}" != "${OPENDKIM_SOCKET}" ]; then
+               # The socket begins with "local:"
+               OPENDKIM_SOCKET_PATH="${OPENDKIM_SOCKET#local:}"
+               OPENDKIM_SOCKET_DIR="${OPENDKIM_SOCKET_PATH%/*}"
+
+               # This is dangerous, but there's a big warning about it
+               # in the conf.d file.
+               checkpath --directory --owner opendkim "${OPENDKIM_SOCKET_DIR}"
+       fi
+}
+
+stop_pre() {
+       # If this is a restart, check to make sure the user's config
+       # isn't busted before we stop the running daemon.
+       if [ "${RC_CMD}" = "restart" ]; then
+               check_cfg || return $?
+       fi
+}

diff --git a/mail-filter/opendkim/files/opendkim.service.r4 
b/mail-filter/opendkim/files/opendkim.service.r4
new file mode 100644
index 00000000000..8c366007c00
--- /dev/null
+++ b/mail-filter/opendkim/files/opendkim.service.r4
@@ -0,0 +1,16 @@
+[Unit]
+Description=DomainKeys Identified Mail (DKIM) Milter
+Documentation=man:opendkim(8) man:opendkim.conf(5) man:opendkim-genkey(8) 
man:opendkim-genzone(8) man:opendkim-testadsp(8) man:opendkim-testkey 
http://www.opendkim.org/docs.html
+After=network.target nss-lookup.target syslog.target
+
+[Service]
+ExecStartPre=/usr/sbin/opendkim -n -f -x /etc/opendkim/opendkim.conf -p 
$OPENDKIM_SOCKET
+ExecStart=/usr/sbin/opendkim -f -x /etc/opendkim/opendkim.conf -p 
$OPENDKIM_SOCKET
+ExecReload=/bin/kill -USR1 $MAINPID
+RuntimeDirectory=opendkim
+RuntimeDirectoryMode=0750
+User=opendkim
+Group=opendkim
+
+[Install]
+WantedBy=multi-user.target

diff --git a/mail-filter/opendkim/opendkim-2.10.3-r9.ebuild 
b/mail-filter/opendkim/opendkim-2.10.3-r9.ebuild
new file mode 100644
index 00000000000..841184ed46b
--- /dev/null
+++ b/mail-filter/opendkim/opendkim-2.10.3-r9.ebuild
@@ -0,0 +1,223 @@
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+inherit autotools db-use eutils systemd user
+
+DESCRIPTION="A milter providing DKIM signing and verification"
+HOMEPAGE="http://opendkim.org/";
+SRC_URI="mirror://sourceforge/opendkim/${P}.tar.gz"
+
+# The GPL-2 is for the init script, bug 425960.
+LICENSE="BSD GPL-2 Sendmail-Open-Source"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~x86"
+IUSE="+berkdb gnutls ldap libressl lmdb lua memcached opendbx poll sasl 
selinux +ssl static-libs unbound"
+
+DEPEND="|| ( mail-filter/libmilter mail-mta/sendmail )
+       dev-libs/libbsd
+       ssl? (
+               !libressl? ( dev-libs/openssl:0= )
+               libressl? ( dev-libs/libressl:0= )
+       )
+       berkdb? ( >=sys-libs/db-3.2:* )
+       opendbx? ( >=dev-db/opendbx-1.4.0 )
+       lua? ( dev-lang/lua:* )
+       ldap? ( net-nds/openldap )
+       lmdb? ( dev-db/lmdb )
+       memcached? ( dev-libs/libmemcached )
+       sasl? ( dev-libs/cyrus-sasl )
+       unbound? ( >=net-dns/unbound-1.4.1:= net-dns/dnssec-root )
+       !unbound? ( net-libs/ldns )
+       gnutls? ( >=net-libs/gnutls-3.3 )"
+
+RDEPEND="${DEPEND}
+       sys-process/psmisc
+       selinux? ( sec-policy/selinux-dkim )
+"
+
+REQUIRED_USE="sasl? ( ldap )"
+
+PATCHES=(
+       "${FILESDIR}/${P}-gnutls-3.4.patch"
+       "${FILESDIR}/${P}-openssl-1.1.1.patch"
+)
+
+pkg_setup() {
+       # This user can read your private keys, and must therefore not be
+       # shared with any other package.
+       enewuser opendkim
+}
+
+src_prepare() {
+       default
+
+       # We delete the "Socket" setting because it's overridden by our
+       # conf.d file.
+       sed -e 's:/var/db/dkim:/var/lib/opendkim:g' \
+               -e '/^[[:space:]]*Socket/d' \
+               -i opendkim/opendkim.conf.sample 
opendkim/opendkim.conf.simple.in \
+               stats/opendkim-reportstats{,.in} || die
+
+       sed -i -e 's:dist_doc_DATA:dist_html_DATA:' 
libopendkim/docs/Makefile.am \
+               || die
+
+       # TODO: what purpose does this serve, do the tests even get run?
+       sed -e "/sock.*mt.getcwd/s:mt.getcwd():${T}:" \
+               -i opendkim/tests/*.lua || die
+
+       eautoreconf
+}
+
+src_configure() {
+       local myconf=()
+       if use berkdb ; then
+               myconf+=(
+                       $(db_includedir)
+                       --with-db-incdir=${myconf#-I}
+                       --enable-popauth
+                       --enable-query_cache
+                       --enable-stats
+               )
+       fi
+       if use unbound; then
+               myconf+=( --with-unbound )
+       else
+               myconf+=( --with-ldns )
+       fi
+       if use ldap; then
+               myconf+=( $(use_with sasl) )
+       fi
+       econf \
+               $(use_with berkdb db) \
+               $(use_with opendbx odbx) \
+               $(use_with lua) \
+               $(use_enable lua rbl) \
+               $(use_with ldap openldap) \
+               $(use_with lmdb) \
+               $(use_enable poll) \
+               $(use_enable static-libs static) \
+               $(use_with gnutls) \
+               $(use_with memcached libmemcached) \
+               "${myconf[@]}" \
+               --enable-filter \
+               --enable-atps \
+               --enable-identity_header \
+               --enable-rate_limit \
+               --enable-resign \
+               --enable-replace_rules \
+               --enable-default_sender \
+               --enable-sender_macro \
+               --enable-vbr \
+               --disable-live-testing
+}
+
+src_install() {
+       default
+       prune_libtool_files
+
+       dosbin stats/opendkim-reportstats
+
+       newinitd "${FILESDIR}/opendkim.init.r6" opendkim
+       newconfd "${FILESDIR}/opendkim.confd" opendkim
+       systemd_newunit "${FILESDIR}/opendkim.service.r4" opendkim.service
+       systemd_install_serviced "${FILESDIR}/${PN}.service.conf" 
"${PN}.service"
+
+       dodir /etc/opendkim
+       keepdir /var/lib/opendkim
+
+       # The OpenDKIM data (particularly, your keys) should be read-only to
+       # the UserID that the daemon runs as.
+       fowners root:opendkim /var/lib/opendkim
+       fperms 750 /var/lib/opendkim
+
+       # Strip the comments out of the "simple" example configuration...
+       grep ^[^#] "${S}"/opendkim/opendkim.conf.simple \
+                > "${T}/opendkim.conf" || die
+
+       # and tweak it a bit before installing it unconditionally.
+       echo "# For use with unbound" >> "${T}/opendkim.conf" || die
+       echo "#TrustAnchorFile /etc/dnssec/root-anchors.txt" \
+                >> "${T}/opendkim.conf" || die
+       echo UserID opendkim >> "${T}/opendkim.conf" || die
+       insinto /etc/opendkim
+       doins "${T}/opendkim.conf"
+}
+
+pkg_postinst() {
+       if [[ -z ${REPLACING_VERSION} ]]; then
+               elog "If you want to sign your mail messages and need some help"
+               elog "please run:"
+               elog "  emerge --config ${CATEGORY}/${PN}"
+               elog "It will help you create your key and give you hints on 
how"
+               elog "to configure your DNS and MTA."
+
+               # TODO: This is tricky, we really need a good wiki page showing
+               # how to share a local socket with an MTA!
+               elog "If you are using a local (UNIX) socket, then you will"
+               elog "need to make sure that your MTA has read/write access"
+               elog "to the socket file. This is best accomplished by creating"
+               elog "a completely-new group with only your MTA user and the "
+               elog "\"opendkim\" user in it. You would then set \"UMask 
0112\""
+               elog "in your opendkim.conf, and switch the primary group of 
your"
+               elog "\"opendkim\" user to the group that you just created. The"
+               elog "last step is necessary for the socket to be created as 
the"
+               elog "new group (and not as group \"opendkim\")".
+       else
+               ewarn "The user account for the OpenDKIM daemon has changed"
+               ewarn "from \"milter\" to \"opendkim\" to prevent unrelated 
services"
+               ewarn "from being able to read your private keys. You should"
+               ewarn "adjust your existing configuration to use the 
\"opendkim\""
+               ewarn "user and group, and change the permissions on"
+               ewarn "${ROOT}var/lib/opendkim to root:opendkim with mode 0750."
+               ewarn "The owner and group of the files within that directory"
+               ewarn "will likely need to be adjusted as well."
+       fi
+}
+
+pkg_config() {
+       local selector keysize pubkey
+
+       read -p "Enter the selector name (default ${HOSTNAME}): " selector
+       [[ -n "${selector}" ]] || selector="${HOSTNAME}"
+       if [[ -z "${selector}" ]]; then
+               eerror "Oddly enough, you don't have a HOSTNAME."
+               return 1
+       fi
+       if [[ -f "${ROOT}var/lib/opendkim/${selector}.private" ]]; then
+               ewarn "The private key for this selector already exists."
+       else
+               keysize=1024
+               # Generate the private and public keys. Note that 
opendkim-genkeys
+               # sets umask=077 on its own to keep these safe. However, we want
+               # them to be readable (only!) to the opendkim user, and we 
manage
+               # that by changing their groups and making everything 
group-readable.
+               opendkim-genkey -b ${keysize} -D "${ROOT}"var/lib/opendkim/ \
+                       -s "${selector}" -d '(your domain)' && \
+                       chgrp --no-dereference opendkim \
+                                 
"${ROOT}var/lib/opendkim/${selector}".{private,txt} || \
+                               { eerror "Failed to create private and public 
keys." ;
+                                 return 1; }
+               chmod g+r "${ROOT}var/lib/opendkim/${selector}".{private,txt}
+       fi
+
+       # opendkim selector configuration
+       echo
+       einfo "Make sure you have the following settings in your 
/etc/opendkim/opendkim.conf:"
+       einfo "  Keyfile /var/lib/opendkim/${selector}.private"
+       einfo "  Selector ${selector}"
+
+       # MTA configuration
+       echo
+       einfo "If you are using Postfix, add following lines to your main.cf:"
+       einfo "  smtpd_milters     = unix:/run/opendkim/opendkim.sock"
+       einfo "  non_smtpd_milters = unix:/run/opendkim/opendkim.sock"
+       einfo "  and read http://www.postfix.org/MILTER_README.html";
+
+       # DNS configuration
+       einfo "After you configured your MTA, publish your key by adding this 
TXT record to your domain:"
+       cat "${ROOT}var/lib/opendkim/${selector}.txt"
+       einfo "t=y signifies you only test the DKIM on your domain. See 
following page for the complete list of tags:"
+       einfo "  http://www.dkim.org/specs/rfc4871-dkimbase.html#key-text";
+}

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