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mitm-webserver/setup_database.sh
malmert 25bb7be29d
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test backend codec ndpi
2026-03-06 22:05:45 +01:00

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#!/bin/bash
set -e
DB_NAME="mitm_db"
DB_USER="mitm_user"
DB_PASS="mitm_password"
LAN_SUBNET="192.168.178.0/24"
echo "[1] Installing PostgreSQL…"
sudo apt update -y
sudo apt install -y postgresql postgresql-contrib
echo "[2] Configuring PostgreSQL to listen on all addresses…"
PG_CONF="/etc/postgresql/$(ls /etc/postgresql)/main/postgresql.conf"
sudo sed -i "s/^#listen_addresses =.*/listen_addresses = '*'/" "$PG_CONF"
echo "[3] Updating pg_hba.conf for LAN + localhost access…"
PG_HBA="/etc/postgresql/$(ls /etc/postgresql)/main/pg_hba.conf"
# Add localhost
if ! grep -Eq "^[ ]*host[ ]+all[ ]+all[ ]+127.0.0.1/32" "$PG_HBA"; then
echo "host all all 127.0.0.1/32 md5" | sudo tee -a "$PG_HBA"
fi
# Add LAN
if ! grep -q "$LAN_SUBNET" "$PG_HBA"; then
echo "host all all $LAN_SUBNET md5" | sudo tee -a "$PG_HBA"
fi
echo "[4] Restarting PostgreSQL…"
sudo systemctl restart postgresql
echo "[5] Creating database + user (idempotent)…"
sudo -u postgres psql <<EOF
DO \$\$
BEGIN
IF NOT EXISTS (SELECT FROM pg_roles WHERE rolname = '$DB_USER') THEN
CREATE USER $DB_USER WITH PASSWORD '$DB_PASS';
END IF;
IF NOT EXISTS (SELECT FROM pg_database WHERE datname = '$DB_NAME') THEN
CREATE DATABASE $DB_NAME OWNER $DB_USER;
END IF;
END
\$\$;
EOF
echo "[6] Creating packets table (idempotent)…"
sudo -u postgres psql -d "$DB_NAME" <<EOF
CREATE TABLE IF NOT EXISTS packets (
id BIGSERIAL PRIMARY KEY,
timestamp TIMESTAMPTZ DEFAULT NOW(),
-- Interface metadata
iface VARCHAR(64),
direction VARCHAR(64),
-- Ethernet
src_mac MACADDR,
dst_mac MACADDR,
eth_type VARCHAR(64),
-- VLAN
vlan_id INTEGER,
-- IP layer
src_ip INET,
dst_ip INET,
ip_proto VARCHAR(64),
-- Transport layer
src_port INTEGER,
dst_port INTEGER,
-- Packet metadata
length INTEGER,
-- DPI / nDPI metadata
app_protocol VARCHAR(128),
app_master_protocol VARCHAR(128),
app_category VARCHAR(128),
app_confidence VARCHAR(64),
app_hostname VARCHAR(255),
app_is_encrypted BOOLEAN,
app_risk_score INTEGER,
dpi_metadata JSONB,
-- Full packet dump
raw BYTEA
);
ALTER TABLE packets ADD COLUMN IF NOT EXISTS app_protocol VARCHAR(128);
ALTER TABLE packets ADD COLUMN IF NOT EXISTS app_master_protocol VARCHAR(128);
ALTER TABLE packets ADD COLUMN IF NOT EXISTS app_category VARCHAR(128);
ALTER TABLE packets ADD COLUMN IF NOT EXISTS app_confidence VARCHAR(64);
ALTER TABLE packets ADD COLUMN IF NOT EXISTS app_hostname VARCHAR(255);
ALTER TABLE packets ADD COLUMN IF NOT EXISTS app_is_encrypted BOOLEAN;
ALTER TABLE packets ADD COLUMN IF NOT EXISTS app_risk_score INTEGER;
ALTER TABLE packets ADD COLUMN IF NOT EXISTS dpi_metadata JSONB;
EOF
echo "[7] Grant privileges to user…"
sudo -u postgres psql -d $DB_NAME <<EOF
-- Grant all table privileges
GRANT ALL PRIVILEGES ON ALL TABLES IN SCHEMA public TO $DB_USER;
-- Grant sequence permissions (needed for SERIAL / BIGSERIAL)
GRANT USAGE, SELECT, UPDATE ON ALL SEQUENCES IN SCHEMA public TO $DB_USER;
-- Change ownership to ensure the user can manage the table
ALTER TABLE packets OWNER TO $DB_USER;
ALTER SEQUENCE packets_id_seq OWNER TO $DB_USER;
-- Ensure future tables & sequences also get permissions
ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL PRIVILEGES ON TABLES TO $DB_USER;
ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT USAGE, SELECT, UPDATE ON SEQUENCES TO $DB_USER;
-- Create indexes for faster queries
CREATE INDEX IF NOT EXISTS idx_packets_timestamp ON packets(timestamp DESC);
CREATE INDEX IF NOT EXISTS idx_packets_src_ip ON packets(src_ip);
CREATE INDEX IF NOT EXISTS idx_packets_app_protocol ON packets(app_protocol);
CREATE INDEX IF NOT EXISTS idx_packets_app_hostname ON packets(app_hostname);
EOF
echo "Done. PostgreSQL is ready for LAN + localhost connections."