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b66530e7fdefa7cb34c930ef8939291341bf77ef
attack-defense-platform/panel/teams.py
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root b66530e7fd fix: per-team receivers as independent systemd services 
Receivers were child Popen processes of gemastik-panel systemd cgroup;
restarting the panel killed all team receivers (SLA -> 0/6, 401 on
/api/team/N/status proxy). Now each team receiver is a systemd service
(gemastik-receiver-teamN.service) generated by gen_receiver_services.py with
per-team env (ports, containers, COMPOSE_LOCATION, .env). Verified: panel
restart no longer kills receivers; 18/18 SLA stays UP.
2026-09-23 17:06:24 +08:00

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#!/usr/bin/env python3
"""
Gemastik A/D multi-team orchestrator.
Each team gets an isolated stack: its own docker-compose (unique ports +
SSH passwords), its own receiver (unique admin creds + ports), and its own
flags. The orchestrator clones the base services dir, rewrites ports and
passwords, and manages lifecycle via docker compose project per team.
Team N layout:
/opt/gemastik18-final/teams/team<N>/
services/ (docker-compose.yml with team ports + passwords)
receiver/ (.env with team admin creds + container overrides)
receiver/flags/ (per-team flag files)
state.json (team metadata: ports, admin user/pass, ssh creds, created ts)
Port scheme (base offset per team index, index 1-based):
team i: chall ports = 30000 + i*1000 + 0..5 (blogpost,carbeat,cdn,phew,sheesh,warmup)
ssh ports = 30000 + i*1000 + 22..27 (10022-style)
receiver = 30000 + i*1000 + 80 (receiver API, e.g. 31080, 32080)
"""
import json
import os
import re
import secrets
import shutil
import subprocess
import sys
import time
import uuid
from datetime import datetime
from pathlib import Path
BASE = Path("/opt/gemastik18-final")
TEAMS_DIR = BASE / "teams"
SERVICES_SRC = BASE / "services"
RECEIVER_SRC = BASE / "receiver"
# Challenge definitions: (service name, chall port offset 0-5, ssh offset 22-27)
CHALLENGES = [
("blogpost", 0, 22),
("carbeat", 1, 23),
("cdn", 2, 24),
("phew", 3, 25),
("sheesh", 4, 26),
("warmup", 5, 27),
]
PORT_BASE = 30000
STEP = 1000
def team_ports(idx: int) -> dict:
"""Return {service_name: {'chall': port, 'ssh': port}} for 1-based team idx."""
base = PORT_BASE + idx * STEP
out = {}
for name, coff, soff in CHALLENGES:
out[name] = {"chall": base + coff, "ssh": base + soff}
out["receiver"] = base + 80
out["panel"] = base + 81 # reserved, not used
return out
def gen_password(n=16):
return uuid.uuid4().hex[:n]
def slugify(s: str) -> str:
"""'Tim Satu Beta!' -> 'tim-satu-beta'"""
s = re.sub(r"[^a-zA-Z0-9\s-]", "", s.lower()).strip()
s = re.sub(r"[\s_]+", "-", s)
return s or "team"
def create_team(idx: int, label: str = None):
"""Build a full team stack dir with unique ports/passwords."""
ports = team_ports(idx)
team_dir = TEAMS_DIR / f"team{idx}"
label = label or f"Tim {idx}"
slug = slugify(label)
state = {
"index": idx,
"label": label,
"slug": slug,
"domain": f"{slug}.gemastik.imrnes.team",
"ports": ports,
"admin_user": f"admin_team{idx}",
"admin_pass": gen_password(20),
"ssh_user": "ctfuser",
"ssh_pass": gen_password(20),
"chall_passwords": {name: gen_password(20) for name, *_ in CHALLENGES},
"container_suffix": f"team{idx}",
"created": __import__("datetime").datetime.now().isoformat(),
"status": "created",
}
# --- copy services with rewrite ---
svc_dir = team_dir / "services"
if svc_dir.exists():
shutil.rmtree(svc_dir)
shutil.copytree(SERVICES_SRC, svc_dir, ignore=shutil.ignore_patterns("__pycache__", ".git", "exploits", "exploit"))
# compose references ../utils/bashrc etc — copy utils next to services
utils_src = BASE / "utils"
utils_dst = team_dir / "utils"
if utils_src.exists():
if utils_dst.exists():
shutil.rmtree(utils_dst)
shutil.copytree(utils_src, utils_dst)
# redirect preexec URL to the team's receiver port
recv_port = ports["receiver"]
bashrc = utils_dst / "bashrc"
if bashrc.exists():
bashrc.write_text(bashrc.read_text().replace(
"host.docker.internal:18080", f"host.docker.internal:{recv_port}"))
compose = svc_dir / "docker-compose.yml"
text = compose.read_text()
# --- replace build: blocks with image: so teams reuse the base images (no rebuild) ---
# Each service's build block looks like:
# build:
# context: <name>
# args:
# - PASSWORD=$PASSWORD_XXXXX
# Replace the whole block with " image: services-<name>".
for name, coff, soff in CHALLENGES:
text = re.sub(
rf" build:\n context: {name}\n args:\n - PASSWORD=\$PASSWORD_[0-9]+\n",
f" image: services-{name}\n",
text)
compose.write_text(text)
# rewrite container names + ports per challenge
for name, coff, soff in CHALLENGES:
cont_old = f"{name}_container"
cont_new = f"{name}_container_team{idx}"
text = text.replace(f"container_name: {cont_old}", f"container_name: {cont_new}")
text = text.replace(f"hostname: {name}", f"hostname: {name}_team{idx}")
# ports mapping: "10000:8000" -> "<team_chall>:8000"
old_chall = str(10000 + coff * 1000) # 10000,11000,12000,13000,14000,15000
old_ssh = str(10022 + coff * 1000) # 10022,11022,...
text = re.sub(rf'"({old_chall}):', f'"{ports[name]["chall"]}:', text)
text = re.sub(rf'"({old_ssh}):', f'"{ports[name]["ssh"]}:', text)
# PASSWORD_* args -> team passwords
for name, coff, soff in CHALLENGES:
old_env = f"PASSWORD_{10000 + coff * 1000}"
text = re.sub(rf"\${{{old_env}}}", state["chall_passwords"][name], text)
# compose file references services/.env — we'll create it below
compose.write_text(text)
# team services/.env (PASSWORD_* in same shape as starter.py)
env_lines = [f"ADMIN_USERNAME={state['admin_user']}", f"ADMIN_PASSWORD={state['admin_pass']}"]
env_lines.append(f"COMPOSE_LOCATION={svc_dir}/docker-compose.yml")
for i in range(20):
env_lines.append(f"PASSWORD_{(i*1000)+10000}={gen_password(20)}")
# force the six used passwords to team ones
for name, coff, soff in CHALLENGES:
for j, line in enumerate(env_lines):
if line.startswith(f"PASSWORD_{10000+coff*1000}="):
env_lines[j] = f"PASSWORD_{10000+coff*1000}={state['chall_passwords'][name]}"
(svc_dir / ".env").write_text("\n".join(env_lines) + "\n")
# --- copy receiver with team env ---
recv_dir = team_dir / "receiver"
if recv_dir.exists():
shutil.rmtree(recv_dir)
shutil.copytree(RECEIVER_SRC, recv_dir, ignore=shutil.ignore_patterns("__pycache__", ".venv", ".env", "history"))
(recv_dir / "history").mkdir(exist_ok=True)
# receiver .env: same admin + passwords + container overrides
recv_env = [f"ADMIN_USERNAME={state['admin_user']}", f"ADMIN_PASSWORD={state['admin_pass']}",
f"COMPOSE_LOCATION={svc_dir}/docker-compose.yml"]
for i in range(20):
recv_env.append(f"PASSWORD_{(i*1000)+10000}={gen_password(20)}")
for name, coff, soff in CHALLENGES:
for j, line in enumerate(recv_env):
if line.startswith(f"PASSWORD_{10000+coff*1000}="):
recv_env[j] = f"PASSWORD_{10000+coff*1000}={state['chall_passwords'][name]}"
recv_env.append(f"CHALLENGE_PORT_{name.upper()}={ports[name]['chall']}")
recv_env.append(f"CHALLENGE_CONTAINER_{name.upper()}={name}_container_team{idx}")
(recv_dir / ".env").write_text("\n".join(recv_env) + "\n")
# --- flags (randomized per team so each team has unique flags) ---
flags_dir = team_dir / "receiver" / "flags"
flags_dir.mkdir(parents=True, exist_ok=True)
flags_map = {}
for name, coff, soff in CHALLENGES:
flag = f"GEMASTIK18{{TEAM{idx}_{name.upper()}_{secrets.token_hex(6)}}}"
(flags_dir / f"{name}.txt").write_text(flag)
flags_map[name] = flag
state["flags"] = flags_map
(team_dir / "state.json").write_text(json.dumps(state, indent=2))
return state
def start_team(idx: int):
team_dir = TEAMS_DIR / f"team{idx}"
if not (team_dir / "state.json").exists():
raise FileNotFoundError(f"Team {idx} not created")
svc_dir = team_dir / "services"
subprocess.run(["docker", "compose", "-p", f"team{idx}", "-f", svc_dir / "docker-compose.yml", "up", "-d", "--build"],
cwd=str(svc_dir), check=False, capture_output=True)
_start_receiver(idx)
st = json.loads((team_dir / "state.json").read_text())
st["status"] = "running"
(team_dir / "state.json").write_text(json.dumps(st, indent=2))
# Set per-team SSH passwords at runtime (images are shared across teams,
# so chpasswd ensures each team's containers have the team's own password).
set_ssh_passwords(idx)
return st
def set_ssh_passwords(idx: int):
"""Set SSH password for ctfuser in each challenge container of a team."""
team_dir = TEAMS_DIR / f"team{idx}"
st = json.loads((team_dir / "state.json").read_text())
for name, coff, soff in CHALLENGES:
cont = f"{name}_container_team{idx}"
pw = st["chall_passwords"][name]
cmd = f"echo 'ctfuser:{pw}' | chpasswd"
# retry a few times — right after `compose up`, container may still be booting
ok = False
for attempt in range(5):
r = subprocess.run(["docker", "exec", cont, "sh", "-c", cmd],
capture_output=True, text=True, timeout=30)
if r.returncode == 0:
ok = True
break
time.sleep(3)
if not ok:
print(f"[set_ssh_passwords] {cont}: FAILED after retries ({r.stderr.strip()[:100]})")
else:
print(f"[set_ssh_passwords] {cont}: OK")
def stop_team(idx: int):
team_dir = TEAMS_DIR / f"team{idx}"
svc_dir = team_dir / "services"
subprocess.run(["docker", "compose", "-p", f"team{idx}", "-f", svc_dir / "docker-compose.yml", "down"],
cwd=str(svc_dir), check=False, capture_output=True)
_stop_receiver(idx)
st = json.loads((team_dir / "state.json").read_text())
st["status"] = "stopped"
(team_dir / "state.json").write_text(json.dumps(st, indent=2))
return st
def _start_receiver(idx: int):
"""Start team's receiver via systemd service (independent of panel cgroup)."""
team_dir = TEAMS_DIR / f"team{idx}"
st = json.loads((team_dir / "state.json").read_text())
port = st["ports"]["receiver"]
pidfile = team_dir / "receiver.pid"
# ensure the per-team systemd unit exists with current env
subprocess.run([sys.executable, str(BASE / "panel" / "gen_receiver_services.py"), "start"],
check=False, capture_output=True)
subprocess.run(["systemctl", "restart", f"gemastik-receiver-team{idx}.service"],
check=False, capture_output=True)
# best-effort pid bookkeeping for ps
try:
out = subprocess.run(["systemctl", "show", "-p", "MainPID", f"gemastik-receiver-team{idx}.service"],
capture_output=True, text=True).stdout
pid = out.strip().split("=")[1]
pidfile.write_text(pid)
except Exception:
pass
def _stop_receiver(idx: int):
"""Stop team's receiver via systemd service."""
team_dir = TEAMS_DIR / f"team{idx}"
pidfile = team_dir / "receiver.pid"
subprocess.run(["systemctl", "stop", f"gemastik-receiver-team{idx}.service"],
check=False, capture_output=True)
pidfile.unlink(missing_ok=True)
def team_logs(idx: int, service: str = None, tail: int = 100):
team_dir = TEAMS_DIR / f"team{idx}"
svc_dir = team_dir / "services"
data = {}
services = [s for s, *_ in CHALLENGES] if service is None else [service]
for s in services:
try:
out = subprocess.run(
["docker", "logs", "--tail", str(tail), f"{s}_container_team{idx}"],
capture_output=True, text=True, timeout=15)
data[s] = (out.stdout + out.stderr)[-4000:]
except Exception as e:
data[s] = f"ERR: {e}"
return data
def ensure_team_domains() -> str:
"""Write Traefik dynamic config for each team domain -> panel (:18081).
Each team gets <slug>.gemastik.imrnes.team. The panel routes
/team/<idx> to that team's portal page (public, no panitia login),
and /api/team/<idx>/* serves team-scoped API. Writing this into the
same dynamic dir Traefik watches means domains appear automatically.
Returns a status string for logging.
"""
traefik_dir = Path("/data/coolify/proxy/dynamic")
traefik_dir.mkdir(parents=True, exist_ok=True)
teams = list_teams()
out = []
changed = False
for t in teams:
slug = t.get("slug") or slugify(t.get("label", ""))
if not slug:
continue
# backfill slug/domain for teams created before this feature
if not t.get("slug"):
td = TEAMS_DIR / f"team{t['index']}"
st = json.loads((td / "state.json").read_text())
st["slug"] = slug
st["domain"] = f"{slug}.gemastik.imrnes.team"
(td / "state.json").write_text(json.dumps(st, indent=2))
changed = True
host = f"{slug}.gemastik.imrnes.team"
out.append(f""" team-{slug}-http:
rule: Host(`{host}`)
entryPoints:
- http
service: gemastik-panel-service
middlewares:
- redirect-to-https
team-{slug}-https:
rule: Host(`{host}`)
entryPoints:
- https
service: gemastik-panel-service
tls:
certResolver: letsencrypt
domains:
- main: {host}
""")
if not out:
return "no teams to route"
# Keep the team domain block in its own file so the main gemastik.yaml stays untouched
(traefik_dir / "gemastik-teams.yaml").write_text("http:\n routers:\n" + "".join(out))
return f"wrote {len(out)} team domain(s) in gemastik-teams.yaml"
def list_teams() -> list:
out = []
if not TEAMS_DIR.exists():
return out
for d in sorted(TEAMS_DIR.glob("team*")):
if (d / "state.json").exists():
st = json.loads((d / "state.json").read_text())
# compute alive status quickly
st["alive_count"] = 0
st["up_count"] = 0
out.append(st)
return out
# ---------------------------------------------------------------------------
# Flag randomization + team submission tracking
# ---------------------------------------------------------------------------
def randomize_flags(idx: int) -> dict:
"""Generate fresh unique flags for every challenge of a team."""
team_dir = TEAMS_DIR / f"team{idx}"
if not (team_dir / "state.json").exists():
raise FileNotFoundError(f"Team {idx} not created")
flags_dir = team_dir / "receiver" / "flags"
flags_dir.mkdir(parents=True, exist_ok=True)
mapping = {}
for name, coff, soff in CHALLENGES:
token = secrets.token_hex(6)
flag = f"GEMASTIK18{{TEAM{idx}_{name.upper()}_{token}}}"
(flags_dir / f"{name}.txt").write_text(flag)
mapping[name] = flag
# rotate into containers: compose mounts the flag files read-only, so
# drop+recreate the challenge containers to pick up new flags
svc_dir = team_dir / "services"
subprocess.run(["docker", "compose", "-p", f"team{idx}", "-f", svc_dir / "docker-compose.yml",
"down"], cwd=str(svc_dir), check=False, capture_output=True)
subprocess.run(["docker", "compose", "-p", f"team{idx}", "-f", svc_dir / "docker-compose.yml",
"up", "-d"], cwd=str(svc_dir), check=False, capture_output=True)
_start_receiver(idx)
st = json.loads((team_dir / "state.json").read_text())
st["flags"] = mapping
(team_dir / "state.json").write_text(json.dumps(st, indent=2))
return mapping
def submit_flag(team_idx: int, chall: str, flag: str, team_name: str = "") -> dict:
"""Validate a submitted flag against the owning team's challenge flag."""
team_dir = TEAMS_DIR / f"team{team_idx}"
if not (team_dir / "state.json").exists():
return {"success": False, "error": "unknown team"}
flags_dir = team_dir / "receiver" / "flags"
expected = (flags_dir / f"{chall}.txt").read_text().strip() if (flags_dir / f"{chall}.txt").exists() else None
if not expected:
return {"success": False, "error": "challenge not found"}
if flag.strip() != expected:
return {"success": False, "error": "wrong flag"}
# record leaderboard entry
lb_path = TEAMS_DIR / "leaderboard.json"
lb = json.loads(lb_path.read_text()) if lb_path.exists() else {"solves": []}
entry = {
"team": team_idx,
"team_name": team_name or f"Team {team_idx}",
"challenge": chall,
"flag": flag,
"ts": time.time(),
"ts_human": datetime.now().strftime("%Y-%m-%d %H:%M:%S"),
}
# avoid double-solve duplicates (same flag + same team)
if not any(e["team"] == team_idx and e["challenge"] == chall for e in lb["solves"]):
lb["solves"].append(entry)
lb_path.write_text(json.dumps(lb, indent=2))
return {"success": True, "team": team_idx, "challenge": chall}
if __name__ == "__main__":
import sys
cmd = sys.argv[1] if len(sys.argv) > 1 else "list"
if cmd == "create" and len(sys.argv) > 2:
st = create_team(int(sys.argv[2]))
print(json.dumps(st, indent=2))
elif cmd == "list":
print(json.dumps(list_teams(), indent=2))
elif cmd == "start" and len(sys.argv) > 2:
print(json.dumps(start_team(int(sys.argv[2])), indent=2))
elif cmd == "stop" and len(sys.argv) > 2:
print(json.dumps(stop_team(int(sys.argv[2])), indent=2))
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