Adds ssh-keysend

1 files changed, 124 insertions, 0 deletions

diff --git a/ssh-keysend b/ssh-keysend
new file mode 100755
index 0000000..fc9b129
--- /dev/null
+++ b/ssh-keysend
@@ -0,0 +1,124 @@
+#! /bin/bash
+# Copyright (c) 2007 Andrés J. Díaz <ajdiaz@connectical.net>
+#
+# Permission is hereby granted, free of charge, to any person
+# obtaining a copy of this software and associated documentation
+# files (the "Software"), to deal in the Software without restriction,
+# including without limitation the rights to use, copy, modify, merge,
+# publish, distribute, sublicense, and/or sell copies of the Software,
+# and to permit persons to whom the Software is furnished to do so,
+# subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# Downloaded from https://launchpad.net/ssh-keysend
+
+ssh_keysend_db_keys=( ~/.ssh/*.pub   )
+ssh_keysend_db_host=( ~/.ssh/known_hosts )
+
+log_level=0
+
+fatal   () { echo "fatal: $@" >&2 ; ${E:+exit $E}; }
+require () { type -p "$1" 2>&1 >/dev/null; }
+debug   () { :; }
+list    () { :; }
+
+help ()
+{
+	echo "$0 [options] <user[@host]> <remotehost>..."
+	echo
+	echo "ssh-keysend send a number of public ssh keys to a different"
+	echo "machines over a network. user@host is the user in the hostname"
+	echo "host who ssh-keysend will authorize in a list of remotehosts."
+	echo
+	echo "Options:"
+	echo "  -h       display this help screen"
+	echo "  -v       increase verbosity"
+	echo "  -p       pretend. Do not do really"
+	echo "  -K file  use file as key database"
+	echo "  -H file  use file as host database"
+	echo
+	echo "Andrés J. Díaz <ajdiaz@connectical.net>"
+}
+
+verbose () {
+	debug () { echo "debug::$@" >&2;	}
+	list () {
+		for item in "$@"; do
+			if [ "${item%% *}" != "${item## *}" ]
+			then
+				debug "  [${item%% *}] ${item##* } "
+			else
+				debug "  ${item}"
+			fi
+		done;
+	}
+}
+
+# Parse options in command line using getopts.
+while getopts "hvpK:H:" option "$@"; do
+	case $option in
+		v) verbose ;;
+		h) help && exit 0 ;;
+		p) pretend=true ;;
+		K) ssh_keysend_db_keys="$OPTARG" ;;
+		H) ssh_keysend_db_host="$OPTARG" ;;
+	esac
+done ; shift $((OPTIND -1))
+
+# Check if pattern search argument exists, if not then exit with error code
+# one. If @ is not present in pattern search, add wildcard automatically.
+[ "$1" ] || E=1 fatal $"user@host not specified."
+user="$1"; shift
+[ "${user%@*}" = "${user}" ] && set -- "${user:-.*}@.*" "$@"
+
+debug "Found pattern keys is: $1"
+debug "Found pattern host is: ${2:-.*}"
+
+# Getting the keys which matching with pattern search into ssh-keysend
+# public keys database.
+keys="$(
+	awk "/[ ]$1$/ { printf \"'%s'\n\",\$0 }" "${ssh_keysend_db_keys[@]}"
+)"
+eval keys=( $keys )
+debug $"Found ${#keys[@]} key(s) for specified pattern matching."
+list  "${keys[@]}"
+
+# Getting the hosts which we will send the specified keys via ssh-keysend.
+host="$(
+	awk "/^${2:-.*}/ { gsub(\",.*\",\"\"); printf \"'%s'\n\",\$1  }" \
+	"${ssh_keysend_db_host[@]}"
+)"
+eval host=( $host )
+debug $"Affected ${#host[@]} host(s) for current action."
+list "${host[@]}"
+
+# The keys() function return a short list of keys to be exported, including
+# the user@host and key type.
+keys ()
+{
+	oldIFS="$IFS" ; export IFS=$'\n'
+	keys="${keys[*]}"; export IFS="$oldIFS"
+	echo "${keys}"
+}
+
+# If running in pretend mode, then it's a good moment to exit.
+${pretend:-false} && exit 0
+
+# For each host try to put ssh key in respective authorized_keys file.
+for host in "${host[@]}" ; do
+	[ "${host##*@}" = "${host}" ] && host="$user@$host"
+	debug "Sending keys to $host..."
+	keys | ssh "$host" "mkdir -p ~/.ssh && cat >> ~/.ssh/authorized_keys"
+done
+
+# vim:foldmethod=syntax:foldenable: