"""REVERT: Remove broken robots.txt block from gfil-lab.com Nginx config"""
import paramiko

JD_HOST = "111.228.37.165"
JD_USER = "root"
JD_PASS = "Liudecai110"

LAB_HOST = "216.144.233.14"
LAB_USER = "root"
LAB_PASS = "Kt9V72Tx2c48ChikKU"

jd = paramiko.SSHClient()
jd.set_missing_host_key_policy(paramiko.AutoAddPolicy())
jd.connect(JD_HOST, port=22, username=JD_USER, password=JD_PASS,
           timeout=20, banner_timeout=60, allow_agent=False, look_for_keys=False)

# Remove ALL robots.txt related lines from the Nginx config
revert_cmd = """sshpass -p 'Kt9V72Tx2c48ChikKU' ssh -o StrictHostKeyChecking=no root@216.144.233.14 '
# Remove the broken "n" line
sed -i "/^n    location/d" /etc/nginx/sites-enabled/gfil
# Remove the robots.txt location block (3 lines: open, alias, close)
sed -i "/location = \/robots\.txt/,/}/d" /etc/nginx/sites-enabled/gfil
# Remove any leftover empty lines
sed -i "/^$/N;/^\\n$/d" /etc/nginx/sites-enabled/gfil

# Verify config is clean
echo "=== Cleaned config ==="
cat /etc/nginx/sites-enabled/gfil

# Test
nginx -t 2>&1
if [ $? -eq 0 ]; then
    systemctl reload nginx
    echo "Nginx reloaded OK - config reverted"
else
    echo "STILL FAILING - showing full config"
    cat -n /etc/nginx/sites-enabled/gfil
fi
'"""
stdin, stdout, stderr = jd.exec_command(revert_cmd, timeout=30)
print(stdout.read().decode())
jd.close()