diff --git a/menu/motd/00-header b/menu/motd/00-header index b66c17b0..5ef9c4f6 100644 --- a/menu/motd/00-header +++ b/menu/motd/00-header @@ -22,8 +22,8 @@ [ -r /etc/lsb-release ] && . /etc/lsb-release if [ -z "$DISTRIB_DESCRIPTION" ] && [ -x /usr/bin/lsb_release ]; then - # Fall back to using the very slow lsb_release utility - DISTRIB_DESCRIPTION=$(lsb_release -s -d) + # Fall back to using the very slow lsb_release utility + DISTRIB_DESCRIPTION=$(lsb_release -s -d) fi printf "Welcome to %s (%s %s %s)\n" "$DISTRIB_DESCRIPTION" "$(uname -o)" "$(uname -r)" "$(uname -m)" diff --git a/menu/motd/50-motd-news b/menu/motd/50-motd-news new file mode 100644 index 00000000..e031cdf1 --- /dev/null +++ b/menu/motd/50-motd-news @@ -0,0 +1,123 @@ +#!/bin/sh +# +# 50-motd-news - print the live news from the Ubuntu wire +# Copyright (C) 2016-2017 Canonical Ltd. +# Copyright (C) 2016-2017 Dustin Kirkland +# +# Authors: Dustin Kirkland +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License along +# with this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + +############################################################################## +# This program could be rewritten in C or Golang for faster performance. +# Or it could be rewritten in Python or another higher level language +# for more modularity. +# However, I've insisted on shell here for transparency! +# - Dustin +############################################################################## + +# Source the local configuration +[ -r /etc/default/motd-news ] && . /etc/default/motd-news + +# Exit immediately, unless we're enabled +# This makes this script very easy to disable in /etc/default/motd-news configuration +[ "$ENABLED" = "1" ] || exit 0 + +# Ensure sane defaults +[ -n "$URLS" ] || URLS="https://motd.ubuntu.com" +[ -n "$WAIT" ] || WAIT=5 +[ -n "$CACHE" ] || CACHE="/var/cache/motd-news" +[ "$1" = "--force" ] && FORCED=1 + +# Ensure we print safely, maximum of the first 10 lines, +# maximum of the first 80 chars per line, no control chars +safe_print() { + cat "$1" | head -n 10 | tr -d '\000-\011\013\014\016-\037' | cut -c -80 +} + + +# If we're not forcing an update, and we have a cached motd-news file, +# then just print it and exit as quickly as possible, for login performance. +# Note that systemd should keep this cache file up to date, asynchronously +if [ "$FORCED" != "1" ]; then + if [ -r $CACHE ]; then + echo + safe_print $CACHE + else + : > $CACHE + fi + exit 0 +fi + +# If we've made it here, we've been given the --force argument, +# probably from the systemd motd-news.service. Let's update... + +# Generate our temp files, clean up when done +NEWS=$(mktemp) || exit 1 +ERR=$(mktemp) || exit 1 +trap "rm -f $NEWS $ERR" HUP INT QUIT ILL TRAP KILL BUS TERM + +# Construct a user agent, similar to Firefox/Chrome/Safari/IE to +# ensure a proper, tailored, accurate message of the day + +# Curl browser version, for debug purposes +curl_ver="$(dpkg -l curl | awk '$1 == "ii" { print($3); exit(0); }')" + +# Distribution version, for messages releated to this Ubuntu release +. /etc/lsb-release +lsb=$(echo "$DISTRIB_DESCRIPTION" | sed -e "s/ /\//g") +codename="$DISTRIB_CODENAME" + +# Kernel version and CPU type, for messages related to a particular revision or hardware +platform="$(uname -o)/$(uname -r)/$(uname -m)" +arch="$(uname -m)" +cpu="$(grep -m1 "^model name" /proc/cpuinfo | sed -e "s/.*: //" -e "s:\s\+:/:g")" + +# Some messages may only be pertinent before or after some amount of uptime +read up idle < /proc/uptime +uptime="uptime/$up/$idle" + +# Piece together the user agent +USER_AGENT="curl/$curl_ver $lsb $platform $cpu $uptime" + +# Loop over any configured URLs +for u in $URLS; do + # Ensure https:// protocol, for security reasons + case $u in + https://*) + true + ;; + https://motd.ubuntu.com) + u="$u/$codename/$arch" + ;; + *) + continue + ;; + esac + # If we're forced, set the wait to much higher (1 minute) + [ "$FORCED" = "1" ] && WAIT=60 + # Fetch and print the news motd + if curl --connect-timeout "$WAIT" --max-time "$WAIT" -A "$USER_AGENT" -o- "$u" >"$NEWS" 2>"$ERR"; then + echo + # At most, 10 lines of text, remove control characters, print at most 80 characters per line + safe_print "$NEWS" + # Try to update the cache + safe_print "$NEWS" 2>/dev/null >$CACHE || true + else + : > "$CACHE" + fi +done +rm -f "$NEWS" "$ERR" +exit 0 diff --git a/menu/motd/80-esm b/menu/motd/80-esm new file mode 100644 index 00000000..08576213 --- /dev/null +++ b/menu/motd/80-esm @@ -0,0 +1,24 @@ +#!/bin/sh + +SERIES=$(lsb_release -cs) +DESCRIPTION=$(lsb_release -ds) + +[ "$SERIES" = "precise" ] || exit 0 + +[ -x /usr/bin/ubuntu-advantage ] || exit 0 + +if ubuntu-advantage is-esm-enabled; then + cat </dev/null | sort -r) || true +echo diff --git a/menu/motd/98-fsck-at-reboot b/menu/motd/98-fsck-at-reboot new file mode 100644 index 00000000..e5ec39e5 --- /dev/null +++ b/menu/motd/98-fsck-at-reboot @@ -0,0 +1,5 @@ +#!/bin/sh + +if [ -x /usr/lib/update-notifier/update-motd-fsck-at-reboot ]; then + exec /usr/lib/update-notifier/update-motd-fsck-at-reboot +fi \ No newline at end of file diff --git a/menu/motd/98-reboot-required b/menu/motd/98-reboot-required new file mode 100644 index 00000000..e86de0ba --- /dev/null +++ b/menu/motd/98-reboot-required @@ -0,0 +1,5 @@ +#!/bin/sh + +if [ -x /usr/lib/update-notifier/update-motd-reboot-required ]; then + exec /usr/lib/update-notifier/update-motd-reboot-required +fi \ No newline at end of file