#!/bin/bash
#
# Send both public and private keys to a server.
#

# Parameters
BASENAME="`basename $0`"
KEY="$1"

# Servers
shift
SERVERS="$*"

# Checks
if [ -z "$SERVERS" ]; then
  echo "usage: $BASENAME <public-key-file> <server1> [server2 .. serverN]"
  exit 1
elif [ ! -e "$KEY" ]; then
  echo "$BASENAME: file not found: $KEY"
  exit 1
elif grep -q -i private $KEY; then
  echo "$BASENAME: please do not send a private key!"
  exit 1
fi

# Destination key
DESTKEY="~/.ssh/`basename $KEY`"

# Put on authorized_keys
for SERVER in $SERVERS; do
  echo "Uploading key into $SERVER..."
  cat $KEY | ssh $SERVER "mkdir -p ~/.ssh && chmod 700 ~/.ssh && touch ~/.ssh/authorized_keys && chmod 600 ~/.ssh/authorized_keys && cat >> ~/.ssh/authorized_keys"
done