init.sh

#!/bin/bash
set -u
set -e

MESSAGE='Usage: init <mode> <node-type> <node-name>
    mode: CURRENT_HOST_IP | auto | backup
    node-type: validator | general
    node-name: NODE_NAME (example: Alastria)'

if ( [ $# -ne 3 ] ); then
    echo "$MESSAGE"
    exit
fi

CURRENT_HOST_IP="$1"
NODE_TYPE="$2"
NODE_NAME="$3"

if ( [ "auto" == "$1" -o "backup" == "$1" ]); then 
    echo "Autodiscovering public host IP ..."
    CURRENT_HOST_IP="$(dig +short myip.opendns.com @resolver1.opendns.com 2>/dev/null || curl -s --retry 2 icanhazip.com)"
    echo "Public host IP found: $CURRENT_HOST_IP"
fi

if ( [ "backup" == "$1" ]); then 
    echo "Backing up current node keys ..."
    #Backup directory tree
    mkdir ~/alastria-keysBackup
    mkdir ~/alastria-keysBackup/data
    mkdir ~/alastria-keysBackup/data/geth
    mkdir ~/alastria-keysBackup/data/constellation
    echo "Saving constellation keys ..."
    cp -r ~/alastria/data/constellation/keystore ~/alastria-keysBackup/data/constellation/
    echo "Saving node keys ..."
    cp -r ~/alastria/data/keystore ~/alastria-keysBackup/data
    echo "Saving enode ID ..."
    cp ~/alastria/data/geth/nodekey ~/alastria-keysBackup/data/geth/nodekey
fi

PWD="$(pwd)"
CONSTELLATION_NODES=$(cat ../data/constellation-nodes.json)
STATIC_NODES=$(cat ../data/static-nodes.json)
PERMISSIONED_NODES_VALIDATOR=$(cat ../data/permissioned-nodes_validator.json)
PERMISSIONED_NODES_GENERAL=$(cat ../data/permissioned-nodes_general.json)

update_constellation_nodes() {
    NODE_IP="$1"
    CONSTELLATION_PORT="$2"
    URL=",
    \"http://$NODE_IP:$CONSTELLATION_PORT/\"
]"
    CONSTELLATION_NODES=${CONSTELLATION_NODES::-2}
    CONSTELLATION_NODES="$CONSTELLATION_NODES$URL"
    echo "$CONSTELLATION_NODES" > ~/alastria-node/data/constellation-nodes.json
}

update_nodes_list() {
    echo "Selected $NODE_TYPE node..."
    echo "Updating permissioned nodes..."

       ENODE=",
    \"$1\"
]"
    PERMISSIONED_NODES_VALIDATOR=${PERMISSIONED_NODES_VALIDATOR::-2}
    PERMISSIONED_NODES_VALIDATOR="$PERMISSIONED_NODES_VALIDATOR$ENODE"
    echo "$PERMISSIONED_NODES_VALIDATOR" > ~/alastria-node/data/permissioned-nodes_validator.json

    if ( [ "validator" == "$NODE_TYPE" ]); then 
        PERMISSIONED_NODES_GENERAL=${PERMISSIONED_NODES_GENERAL::-2}
        PERMISSIONED_NODES_GENERAL="$PERMISSIONED_NODES_GENERAL$ENODE"
        echo "$PERMISSIONED_NODES_GENERAL" > ~/alastria-node/data/permissioned-nodes_general.json
    fi

    echo "Updating static-nodes..."
    cp ~/alastria-node/data/permissioned-nodes_general.json ~/alastria-node/data/static-nodes.json

}


generate_conf() {
   #define parameters which are passed in.
   NODE_IP="$1"
   CONSTELLATION_PORT="$2"
   OTHER_NODES="$3"
   PWD="$4"

   #define the template.
   cat  << EOF
# Externally accessible URL for this node (this is what's advertised)
url = "http://$NODE_IP:$CONSTELLATION_PORT/"

# Port to listen on for the public API
port = $CONSTELLATION_PORT

# Socket file to use for the private API / IPC
socket = "$PWD/alastria/data/constellation/constellation.ipc"

# Initial (not necessarily complete) list of other nodes in the network.
# Constellation will automatically connect to other nodes not in this list
# that are advertised by the nodes below, thus these can be considered the
# "boot nodes."
othernodes = $OTHER_NODES

# The set of public keys this node will host
publickeys = ["$PWD/alastria/data/constellation/keystore/node.pub"]

# The corresponding set of private keys
privatekeys = ["$PWD/alastria/data/constellation/keystore/node.key"]

# Optional file containing the passwords to unlock the given privatekeys
# (one password per line -- add an empty line if one key isn't locked.)
passwords = "$PWD/alastria/data/passwords.txt"

# Where to store payloads and related information
storage = "$PWD/alastria/data/constellation/data"

# Verbosity level (each level includes all prior levels)
#   - 0: Only fatal errors
#   - 1: Warnings
#   - 2: Informational messages
#   - 3: Debug messages
verbosity = 2

EOF
}

echo "[*] Cleaning up temporary data directories."
rm -rf ~/alastria
mkdir -p ~/alastria/data/{keystore,geth,constellation}
mkdir -p ~/alastria/data/constellation/{data,keystore}
mkdir -p ~/alastria/logs

echo "$NODE_NAME" > ~/alastria/data/IDENTITY
echo "$NODE_TYPE" > ~/alastria/data/NODE_TYPE

# Creamos el fichero de passwords con la contraseña de las cuentas
echo "Passw0rd" > ~/alastria/data/passwords.txt

echo "[*] Initializing quorum"
geth --datadir ~/alastria/data init ~/alastria-node/data/genesis.json
cd ~/alastria/data/geth
bootnode -genkey nodekey
ENODE_KEY=$(bootnode -nodekey nodekey -writeaddress)
echo "ENODE -> 'enode://${ENODE_KEY}@${CURRENT_HOST_IP}:21000?raftport=41000'"
update_nodes_list "enode://${ENODE_KEY}@${CURRENT_HOST_IP}:21000?raftport=41000"
cd ~
if [[ "$CURRENT_HOST_IP" == "52.56.69.220" ]]; then
    cp ~/alastria-node/data/static-nodes.json ~/alastria/data/static-nodes.json
    cp ~/alastria-node/data/static-nodes.json ~/alastria/data/permissioned-nodes.json
fi

echo "     Por favor, introduzca como contraseña 'Passw0rd'."
geth --datadir ~/alastria/data account new

echo "[*] Initializing Constellation node."
update_constellation_nodes "${CURRENT_HOST_IP}" "9000"
generate_conf "${CURRENT_HOST_IP}" "9000" "$CONSTELLATION_NODES" "${PWD}" > ~/alastria/data/constellation/constellation.conf
cd ~/alastria/data/constellation/keystore
cat ~/alastria/data/passwords.txt | constellation-node --generatekeys=node
echo "______"
cd ~

if ( [ "backup" == "$1" ]); then 
    echo "Recovering keys from backup ..."
    rm -rf ~/alastria/data/constellation/keystore
    rm -rf ~/alastria/data/keystore
    rm ~/alastria/data/geth/nodekey

    echo "Recovering constellation keys ..."
    cp -rf ~/alastria-keysBackup/data/constellation/keystore ~/alastria/data/constellation/
    echo "Recovering node keys ..."
    cp -rf ~/alastria-keysBackup/data/keystore ~/alastria/data/ 
    echo "Recovering enode ID ..."
    cp ~/alastria-keysBackup/data/geth/nodekey ~/alastria/data/geth/nodekey
    echo "Cleaning backup files ..."
    rm -rf ~/alastria-keysBackup
fi

echo "[*] Initialization was completed successfully."
echo " "
echo "      Update DIRECTORY.md from alastria-node repository and send a Pull Request."
echo "      The network administrator will send a RAFT_ID file. It will be stored in '~/alastria/data/' directory."
echo " "

set +u
set +e