moved apt-get-update and apt-get-wrapper from whonixcheck to security-misc

usr/lib/security-misc/apt-get-update

@@ -0,0 +1,38 @@
+#!/bin/bash
+
+## This file is part of Whonix.
+## Copyright (C) 2012 - 2014 Patrick Schleizer <adrelanos@riseup.net>
+## See the file COPYING for copying conditions.
+
+## Required to run apt-get update as user 'whonixcheck' (non-root).
+## Required for whonixcheck function check_operating_system.
+## Exception to run /usr/lib/apt-get-update as user 'whonixcheck'.
+## is defined in /etc/sudoers.d/.
+
+sigterm_trap() {
+   if [ "$lastpid" = "" ]; then
+      exit 143
+   fi
+   ps -p "$lastpid"
+   if [ ! "$?" = "0" ]; then
+      ## Already terminated.
+      exit 143
+   fi
+   kill -sigterm "$lastpid"
+   exit 143
+}
+
+trap "sigterm_trap" SIGTERM
+
+timeout_after="120"
+kill_after="10"
+
+timeout \
+   --kill-after="$kill_after" \
+   "$timeout_after" \
+   /usr/lib/apt-get-wrapper update &
+
+lastpid="$!"
+wait "$lastpid"
+
+exit "$?"

usr/lib/security-misc/apt-get-wrapper

@@ -0,0 +1,67 @@
+#!/bin/bash
+
+## This file is part of Whonix.
+## Copyright (C) 2012 - 2014 Patrick Schleizer <adrelanos@riseup.net>
+## See the file COPYING for copying conditions.
+
+set -e
+set -o pipefail
+set -o errtrace
+
+cleanup() {
+   if [ -d "$temp_dir" ]; then
+      rm --recursive --force "$temp_dir"
+   fi
+}
+
+temp_dir="$(mktemp --directory)"
+
+logfile="$temp_dir/log"
+tee_fifo="$temp_dir/tee_fifo"
+
+trap "cleanup" EXIT
+
+mkfifo "$tee_fifo"
+
+tee "$logfile" < "$tee_fifo" &
+tee_pid="$!"
+
+apt-get \
+   ${1+"$@"} \
+   1> "$tee_fifo" \
+   2> "$tee_fifo" \
+   &
+
+apt_get_pid="$!"
+
+wait "$tee_pid"
+wait "$apt_get_pid"
+apt_get_exit_code="$?"
+
+if [ ! "$apt_get_exit_code" = "0" ]; then
+   exit "$apt_get_exit_code"
+fi
+
+log="$(cat "$logfile")"
+
+while read -r -d $'\n' line; do
+   line_lower_case="${line,,}"
+   first_two="${line_lower_case:0:2}"
+   if [ "$first_two" = "e:" ]; then
+      exit 125
+   fi
+   if [ "$first_two" = "w:" ]; then
+      first_twelve="${line_lower_case:0:12}"
+      if [ "$first_twelve" = "w: duplicate" ]; then
+         continue
+      fi
+      skip_summary_line="W: You may want to run apt-get update to correct these problems"
+      skip_summary_line_lower_case="${skip_summary_line,,}"
+      if [ "$line_lower_case" = "$skip_summary_line_lower_case" ]; then
+         continue
+      fi
+      exit 125
+   fi
+done < <( echo "$log" )
+
+exit "$apt_get_exit_code"