Version bump

Fix relative links

.github/cfproxy-domains.txt

@@ -3,3 +3,5 @@ vmmzovy.com
 mkuosckvso.com
 zaewayzmplad.com
 twdmbzcm.com
+awzwsldi.com
+clngqrflngqin.com

.github/workflows/build.yml

@@ -384,7 +384,8 @@ jobs:
           tag_name: ${{ github.event.inputs.version }}
           name: "TG WS Proxy ${{ github.event.inputs.version }}"
           body: |
-            ## TG WS Proxy ${{ github.event.inputs.version }}
+            ## 
+            ### [❤️ Поддержать развитие проекта](https://github.com/Flowseal/tg-ws-proxy/blob/main/docs/Funding.md)
           files: |
             dist/TgWsProxy_windows.exe
             dist/TgWsProxy_windows_7_64bit.exe

.gitignore

@@ -24,9 +24,4 @@ Thumbs.db
 Desktop.ini
 .DS_Store
 
-# Project-specific (not for the repo)
-scan_ips.py
-scan.txt
-AyuGramDesktop-dev/
-tweb-master/
 /icon.icns

docs/Funding.md

@@ -0,0 +1,14 @@
+> [!TIP]
+>
+> ### 🎉 Поддержать меня
+>
+> **USDT (TRC20)**: `TXPnKs2Ww1RD8JN6nChFUVmi5r2hqrWjuu`  
+> **BTC**: `bc1qr8vd6jelkyyry3m4mq6z5txdx4pl856fu6ss0w`  
+> **ETH**: `0x1417878fdc5047E670a77748B34819b9A49C72F1`  
+> **Другие монеты**: https://nowpayments.io/donation/flowseal
+
+##
+
+### Проект полностью бесплатен для использования всеми.
+### Однако его развитие и стабильная работа при росте числа пользователей требуют от меня определённых вложений.
+### Буду благодарен за любую форму поддержки! Спасибо ❤️

docs/README.md

@@ -1,6 +1,6 @@
 > [!TIP]
 >
-> ### 🎉 Поддержать меня
+> ### [🎉 Поддержать меня](https://github.com/Flowseal/tg-ws-proxy/blob/main/docs/Funding.md)
 >
 > **USDT (TRC20)**: `TXPnKs2Ww1RD8JN6nChFUVmi5r2hqrWjuu`  
 > **BTC**: `bc1qr8vd6jelkyyry3m4mq6z5txdx4pl856fu6ss0w`  
@@ -280,7 +280,7 @@ Tray-приложение хранит данные в:
 
 ## Автоматическая сборка
 
-Проект содержит спецификации PyInstaller ([`packaging/windows.spec`](packaging/windows.spec), [`packaging/macos.spec`](packaging/macos.spec), [`packaging/linux.spec`](packaging/linux.spec)) и GitHub Actions workflow ([`.github/workflows/build.yml`](.github/workflows/build.yml)) для автоматической сборки.
+Проект содержит спецификации PyInstaller ([`packaging/windows.spec`](../packaging/windows.spec), [`packaging/macos.spec`](../packaging/macos.spec), [`packaging/linux.spec`](../packaging/linux.spec)) и GitHub Actions workflow ([`.github/workflows/build.yml`](../.github/workflows/build.yml)) для автоматической сборки.
 
 Минимально поддерживаемые версии ОС для текущих бинарных сборок:
 
@@ -293,4 +293,4 @@ Tray-приложение хранит данные в:
 
 ## Лицензия
 
-[MIT License](LICENSE)
+[MIT License](https://github.com/Flowseal/tg-ws-proxy/blob/main/LICENSE)

macos.py

@@ -309,7 +309,7 @@ def _maybe_notify_update_async() -> None:
             ):
                 webbrowser.open(url)
         except Exception as exc:
-            log.debug("Update check failed: %s", exc)
+            log.warning("Update check failed: %s", exc)
 
     threading.Thread(target=_work, daemon=True, name="update-check").start()
 

proxy/__init__.py

@@ -1,6 +1,6 @@
 from .config import parse_dc_ip_list, proxy_config
 from .utils import get_link_host
 
-__version__ = "1.6.2"
+__version__ = "1.6.4"
 
 __all__ = ["__version__", "get_link_host", "proxy_config", "parse_dc_ip_list"]

proxy/balancer.py

@@ -0,0 +1,43 @@
+import random
+from collections import Counter
+
+from typing import Dict, List, Iterator 
+
+
+class _Balancer:
+    def __init__(self):
+        self.domains: List[str] = []
+        self._dc_to_domain: Dict[int, str] = {}
+    
+    def update_domains_list(self, domains_list: List[str]) -> None:
+        if Counter(self.domains) == Counter(domains_list):
+            return
+        
+        self.domains = domains_list[:]
+
+        self._dc_to_domain = {
+            dc_id: random.choice(self.domains)
+            for dc_id in (1, 2, 3, 4, 5, 203)
+        }
+
+    def update_domain_for_dc(self, dc_id: int, domain: str) -> bool:
+        if self._dc_to_domain.get(dc_id) == domain:
+            return False
+        
+        self._dc_to_domain[dc_id] = domain
+        return True
+
+    def get_domains_for_dc(self, dc_id: int) -> Iterator[str]:
+        current_domain = self._dc_to_domain.get(dc_id)
+        if current_domain is not None:
+            yield current_domain
+
+        shuffled_domains = self.domains[:]
+        random.shuffle(shuffled_domains)
+
+        for domain in shuffled_domains:
+            if domain != current_domain:
+                yield domain
+
+
+balancer = _Balancer()

proxy/bridge.py

@@ -7,6 +7,7 @@ from typing import Dict, List, Optional
 
 from .utils import *
 from .stats import stats
+from .balancer import balancer
 from .config import proxy_config
 from .raw_websocket import RawWebSocket
 
@@ -126,7 +127,7 @@ class MsgSplitter:
 
 
 async def do_fallback(reader, writer, relay_init, label,
-                       dc, is_media, media_tag,
+                       dc: int, is_media: bool, media_tag: str,
                        ctx: CryptoCtx, splitter=None):
     fallback_dst = DC_DEFAULT_IPS.get(dc)
     use_cf = proxy_config.fallback_cfproxy
@@ -140,9 +141,9 @@ async def do_fallback(reader, writer, relay_init, label,
     for method in methods:
         if method == 'cf':
             ok = await _cfproxy_fallback(
-                reader, writer, relay_init, label,
+                reader, writer, relay_init, label, ctx,
                 dc=dc, is_media=is_media,
-                ctx=ctx, splitter=splitter)
+                splitter=splitter)
             if ok:
                 return True
         elif method == 'tcp' and fallback_dst:
@@ -150,27 +151,24 @@ async def do_fallback(reader, writer, relay_init, label,
                      label, dc, media_tag, fallback_dst)
             ok = await _tcp_fallback(
                 reader, writer, fallback_dst, 443,
-                relay_init, label, dc=dc, is_media=is_media, ctx=ctx)
+                relay_init, label, ctx)
             if ok:
                 return True
     return False
 
 
 async def _cfproxy_fallback(reader, writer, relay_init, label,
-                            dc=None, is_media=False,
-                            ctx: CryptoCtx = None, splitter=None):
+                            ctx: CryptoCtx,
+                            dc: int, is_media: bool,
+                            splitter=None):
     media_tag = ' media' if is_media else ''
-
-    active = proxy_config.active_cfproxy_domain
-    others = [d for d in proxy_config.cfproxy_domains if d != active]
-
     ws = None
     chosen_domain = None
 
     log.info("[%s] DC%d%s -> trying CF proxy",
             label, dc, media_tag)
 
-    for base_domain in ([active] + others):
+    for base_domain in balancer.get_domains_for_dc(dc):
         domain = f'kws{dc}.{base_domain}'
         try:
             ws = await RawWebSocket.connect(domain, domain, timeout=10.0)
@@ -178,45 +176,42 @@ async def _cfproxy_fallback(reader, writer, relay_init, label,
             break
         except Exception as exc:
             log.warning("[%s] DC%d%s CF proxy failed: %s",
-                        label, dc, media_tag, exc)
+                        label, dc, media_tag, repr(exc))
 
     if ws is None:
         return False
 
-    if chosen_domain and chosen_domain != proxy_config.active_cfproxy_domain:
-        log.info("[%s] Switching active CF domain", label)
-        proxy_config.active_cfproxy_domain = chosen_domain
+    if chosen_domain and balancer.update_domain_for_dc(dc, chosen_domain):
+        log.info("[%s] Switched active CF domain", label)
 
     stats.connections_cfproxy += 1
     await ws.send(relay_init)
-    await bridge_ws_reencrypt(reader, writer, ws, label,
+    await bridge_ws_reencrypt(reader, writer, ws, label, ctx,
                                dc=dc, is_media=is_media,
-                               ctx=ctx, splitter=splitter)
+                               splitter=splitter)
     return True
 
 
-async def _tcp_fallback(reader, writer, dst, port, relay_init, label,
-                        dc=None, is_media=False, ctx: CryptoCtx = None):
+async def _tcp_fallback(reader, writer, dst, port, relay_init, label, ctx: CryptoCtx):
     try:
         rr, rw = await asyncio.wait_for(
             asyncio.open_connection(dst, port), timeout=10)
     except Exception as exc:
         log.warning("[%s] TCP fallback to %s:%d failed: %s",
-                    label, dst, port, exc)
+                    label, dst, port, repr(exc))
         return False
 
     stats.connections_tcp_fallback += 1
     rw.write(relay_init)
     await rw.drain()
-    await _bridge_tcp_reencrypt(reader, writer, rr, rw, label,
-                                dc=dc, is_media=is_media, ctx=ctx)
+    await _bridge_tcp_reencrypt(reader, writer, rr, rw, label, ctx)
     return True
 
 
 async def bridge_ws_reencrypt(reader, writer, ws: RawWebSocket, label,
+                               ctx: CryptoCtx,
                                dc=None, is_media=False,
-                               ctx: CryptoCtx = None,
-                               splitter: MsgSplitter = None):
+                               splitter: Optional[MsgSplitter] = None):
     """
     Bidirectional TCP(client) <-> WS(telegram) with re-encryption.
     client ciphertext → decrypt(clt_key) → encrypt(tg_key) → WS
@@ -313,8 +308,7 @@ async def bridge_ws_reencrypt(reader, writer, ws: RawWebSocket, label,
 
 
 async def _bridge_tcp_reencrypt(reader, writer, remote_reader, remote_writer,
-                                label, dc=None, is_media=False,
-                                ctx: CryptoCtx = None):
+                                label, ctx: CryptoCtx):
     """Bidirectional TCP <-> TCP with re-encryption."""
 
     async def forward(src, dst_w, is_up):

proxy/config.py

@@ -9,6 +9,8 @@ from dataclasses import dataclass, field
 from typing import Dict, List
 from urllib.request import Request, urlopen
 
+from .balancer import balancer
+
 log = logging.getLogger('tg-mtproto-proxy')
 
 CFPROXY_DOMAINS_URL = (
@@ -45,8 +47,6 @@ class ProxyConfig:
     fallback_cfproxy: bool = True
     fallback_cfproxy_priority: bool = True
     cfproxy_user_domain: str = ''
-    cfproxy_domains: List[str] = field(default_factory=lambda: list(CFPROXY_DEFAULT_DOMAINS))
-    active_cfproxy_domain: str = field(default_factory=lambda: random.choice(CFPROXY_DEFAULT_DOMAINS))
     fake_tls_domain: str = ''
     proxy_protocol: bool = False
 
@@ -66,7 +66,7 @@ def _fetch_cfproxy_domain_list() -> List[str]:
         ]
         return [_dd(d) for d in encoded]
     except Exception as exc:
-        log.warning("Failed to fetch CF proxy domain list: %s", exc)
+        log.warning("Failed to fetch CF proxy domain list: %s", repr(exc))
         return []
 
 
@@ -79,12 +79,8 @@ def refresh_cfproxy_domains() -> None:
     if fetched:
         seen = set()
         pool = [d for d in fetched if not (d in seen or seen.add(d))]
+        balancer.update_domains_list(pool)
         log.info("CF proxy domain pool updated from GitHub (%d domains)", len(pool))
-    else:
-        pool = list(proxy_config.cfproxy_domains) or list(CFPROXY_DEFAULT_DOMAINS)
-
-    proxy_config.cfproxy_domains = pool
-    proxy_config.active_cfproxy_domain = random.choice(pool)
 
 
 _refresh_stop: threading.Event = threading.Event()
@@ -96,6 +92,8 @@ def start_cfproxy_domain_refresh() -> None:
     _refresh_stop = threading.Event()
     stop = _refresh_stop
 
+    balancer.update_domains_list(CFPROXY_DEFAULT_DOMAINS)
+
     def _loop():
         refresh_cfproxy_domains()
         while not stop.wait(timeout=3600):

proxy/fake_tls.py

@@ -213,8 +213,8 @@ async def proxy_to_masking_domain(reader, writer, initial_data: bytes,
         up_reader, up_writer = await asyncio.wait_for(
             asyncio.open_connection(domain, 443), timeout=10)
     except Exception as exc:
-        log.debug("[%s] masking: cannot connect to %s:443: %s",
-                  label, domain, exc)
+        log.warning("[%s] masking: cannot connect to %s:443: %s",
+                  label, domain, repr(exc))
         return
 
     log.debug("[%s] masking -> %s:443", label, domain)

proxy/raw_websocket.py

@@ -25,7 +25,7 @@ _ssl_ctx.verify_mode = ssl.CERT_NONE
 
 class WsHandshakeError(Exception):
     def __init__(self, status_code: int, status_line: str,
-                 headers: dict = None, location: str = None):
+                 headers: Optional[dict] = None, location: Optional[str] = None):
         self.status_code = status_code
         self.status_line = status_line
         self.headers = headers or {}

proxy/tg_ws_proxy.py

@@ -4,7 +4,6 @@ import os
 import sys
 import time
 import struct
-import random
 import asyncio
 import hashlib
 import argparse
@@ -25,18 +24,19 @@ if __name__ == '__main__' and (__package__ is None or __package__ == ''):
 
 from .utils import *
 from .stats import stats
-from .config import proxy_config, parse_dc_ip_list, start_cfproxy_domain_refresh, CFPROXY_DEFAULT_DOMAINS
+from .config import proxy_config, parse_dc_ip_list, start_cfproxy_domain_refresh
 from .bridge import MsgSplitter, CryptoCtx, do_fallback, bridge_ws_reencrypt
 from .raw_websocket import RawWebSocket, WsHandshakeError, set_sock_opts
 from .fake_tls import proxy_to_masking_domain, verify_client_hello, build_server_hello, FakeTlsStream, TLS_RECORD_HANDSHAKE
+from .balancer import balancer
 
 
 log = logging.getLogger('tg-mtproto-proxy')
 
 DC_FAIL_COOLDOWN = 30.0
 WS_FAIL_TIMEOUT = 2.0
-ws_blacklist: Set[Tuple[int, bool]] = set()
-dc_fail_until: Dict[Tuple[int, bool], float] = {}
+ws_blacklist: Set[str] = set()
+dc_fail_until: Dict[str, float] = {}
 
 
 def _try_handshake(handshake: bytes, secret: bytes) -> Optional[Tuple[int, bool, bytes, bytes]]:
@@ -191,7 +191,7 @@ class _WsPool:
         except Exception:
             pass
 
-    async def warmup(self, dc_redirects: Dict[int, Optional[str]]):
+    async def warmup(self, dc_redirects: Dict[int, str]):
         for dc, target_ip in dc_redirects.items():
             if target_ip is None:
                 continue
@@ -207,6 +207,146 @@ class _WsPool:
 _ws_pool = _WsPool()
 
 
+async def _read_client_init(reader, writer, secret, label, masking):
+    if proxy_config.proxy_protocol:
+        try:
+            pp_line = await asyncio.wait_for(
+                reader.readline(), timeout=10)
+        except asyncio.IncompleteReadError:
+            log.debug("[%s] disconnected during PROXY header", label)
+            return None
+        pp_text = pp_line.decode('ascii', errors='replace').strip()
+        if pp_text.startswith('PROXY '):
+            parts = pp_text.split()
+            if len(parts) >= 6:
+                label = f"{parts[2]}:{parts[4]}"
+            log.debug("[%s] PROXY protocol: %s", label, pp_text)
+        else:
+            log.debug("[%s] expected PROXY header, got: %r", label,
+                      pp_text[:60])
+
+    try:
+        first_byte = await asyncio.wait_for(
+            reader.readexactly(1), timeout=10)
+    except asyncio.IncompleteReadError:
+        log.debug("[%s] client disconnected before handshake", label)
+        return None
+
+    if first_byte[0] == TLS_RECORD_HANDSHAKE and masking:
+        try:
+            hdr_rest = await asyncio.wait_for(
+                reader.readexactly(4), timeout=10)
+        except asyncio.IncompleteReadError:
+            log.debug("[%s] incomplete TLS record header", label)
+            return None
+
+        tls_header = first_byte + hdr_rest
+        record_len = struct.unpack('>H', tls_header[3:5])[0]
+
+        try:
+            record_body = await asyncio.wait_for(
+                reader.readexactly(record_len), timeout=10)
+        except asyncio.IncompleteReadError:
+            log.debug("[%s] incomplete TLS record body", label)
+            return None
+
+        client_hello = tls_header + record_body
+
+        tls_result = verify_client_hello(client_hello, secret)
+
+        if tls_result is None:
+            log.debug("[%s] Fake TLS verify failed (size=%d rec=%d) "
+                      "-> masking",
+                      label, len(client_hello), record_len)
+            await proxy_to_masking_domain(
+                reader, writer, client_hello, masking, label)
+            return None
+
+        client_random, session_id, ts = tls_result
+        log.debug("[%s] Fake TLS handshake ok (ts=%d)", label, ts)
+
+        server_hello = build_server_hello(secret, client_random, session_id)
+        writer.write(server_hello)
+        await writer.drain()
+
+        tls_stream = FakeTlsStream(reader, writer)
+
+        try:
+            handshake = await asyncio.wait_for(
+                tls_stream.readexactly(HANDSHAKE_LEN), timeout=10)
+        except asyncio.IncompleteReadError:
+            log.debug("[%s] incomplete obfs2 init inside TLS", label)
+            return None
+
+        return handshake, tls_stream, tls_stream, label
+
+    elif masking:
+        log.debug("[%s] non-TLS byte 0x%02X -> HTTP redirect", label,
+                  first_byte[0])
+        redirect = (
+            f"HTTP/1.1 301 Moved Permanently\r\n"
+            f"Location: https://{masking}/\r\n"
+            f"Content-Length: 0\r\n"
+            f"Connection: close\r\n\r\n"
+        ).encode()
+        writer.write(redirect)
+        await writer.drain()
+        return None
+
+    else:
+        try:
+            rest = await asyncio.wait_for(
+                reader.readexactly(HANDSHAKE_LEN - 1), timeout=10)
+        except asyncio.IncompleteReadError:
+            log.debug("[%s] client disconnected before handshake", label)
+            return None
+        return first_byte + rest, reader, writer, label
+
+
+def _build_crypto_ctx(client_dec_prekey_iv, secret, relay_init):
+    # key = SHA256(prekey + secret), iv from handshake
+    # "dec" = decrypt data from client; "enc" = encrypt data to client
+    clt_dec_prekey = client_dec_prekey_iv[:PREKEY_LEN]
+    clt_dec_iv = client_dec_prekey_iv[PREKEY_LEN:]
+    clt_dec_key = hashlib.sha256(clt_dec_prekey + secret).digest()
+
+    clt_enc_prekey_iv = client_dec_prekey_iv[::-1]
+    clt_enc_key = hashlib.sha256(
+        clt_enc_prekey_iv[:PREKEY_LEN] + secret).digest()
+    clt_enc_iv = clt_enc_prekey_iv[PREKEY_LEN:]
+
+    clt_decryptor = Cipher(
+        algorithms.AES(clt_dec_key), modes.CTR(clt_dec_iv)
+    ).encryptor()
+    clt_encryptor = Cipher(
+        algorithms.AES(clt_enc_key), modes.CTR(clt_enc_iv)
+    ).encryptor()
+
+    # fast-forward client decryptor past the 64-byte init
+    clt_decryptor.update(ZERO_64)
+
+    # relay side: standard obfuscation (no secret hash, raw key)
+    relay_enc_key = relay_init[SKIP_LEN:SKIP_LEN + PREKEY_LEN]
+    relay_enc_iv = relay_init[SKIP_LEN + PREKEY_LEN:
+                              SKIP_LEN + PREKEY_LEN + IV_LEN]
+
+    relay_dec_prekey_iv = relay_init[SKIP_LEN:
+                                     SKIP_LEN + PREKEY_LEN + IV_LEN][::-1]
+    relay_dec_key = relay_dec_prekey_iv[:KEY_LEN]
+    relay_dec_iv = relay_dec_prekey_iv[KEY_LEN:]
+
+    tg_encryptor = Cipher(
+        algorithms.AES(relay_enc_key), modes.CTR(relay_enc_iv)
+    ).encryptor()
+    tg_decryptor = Cipher(
+        algorithms.AES(relay_dec_key), modes.CTR(relay_dec_iv)
+    ).encryptor()
+
+    tg_encryptor.update(ZERO_64)
+
+    return CryptoCtx(clt_decryptor, clt_encryptor, tg_encryptor, tg_decryptor)
+
+
 async def _handle_client(reader, writer, secret: bytes):
     stats.connections_total += 1
     stats.connections_active += 1
@@ -215,115 +355,25 @@ async def _handle_client(reader, writer, secret: bytes):
 
     set_sock_opts(writer.transport, proxy_config.buffer_size)
 
-    tls_stream = None
-    masking = proxy_config.fake_tls_domain
-
     try:
-        if proxy_config.proxy_protocol:
-            try:
-                pp_line = await asyncio.wait_for(
-                    reader.readline(), timeout=10)
-            except asyncio.IncompleteReadError:
-                log.debug("[%s] disconnected during PROXY header", label)
-                return
-            pp_text = pp_line.decode('ascii', errors='replace').strip()
-            if pp_text.startswith('PROXY '):
-                parts = pp_text.split()
-                if len(parts) >= 6:
-                    label = f"{parts[2]}:{parts[4]}"
-                log.debug("[%s] PROXY protocol: %s", label, pp_text)
-            else:
-                log.debug("[%s] expected PROXY header, got: %r", label,
-                          pp_text[:60])
-
-        try:
-            first_byte = await asyncio.wait_for(
-                reader.readexactly(1), timeout=10)
-        except asyncio.IncompleteReadError:
-            log.debug("[%s] client disconnected before handshake", label)
+        init = await _read_client_init(
+            reader, writer, secret, label, proxy_config.fake_tls_domain)
+        if init is None:
             return
 
-        if first_byte[0] == TLS_RECORD_HANDSHAKE and masking:
-            try:
-                hdr_rest = await asyncio.wait_for(
-                    reader.readexactly(4), timeout=10)
-            except asyncio.IncompleteReadError:
-                log.debug("[%s] incomplete TLS record header", label)
-                return
-
-            tls_header = first_byte + hdr_rest
-            record_len = struct.unpack('>H', tls_header[3:5])[0]
-
-            try:
-                record_body = await asyncio.wait_for(
-                    reader.readexactly(record_len), timeout=10)
-            except asyncio.IncompleteReadError:
-                log.debug("[%s] incomplete TLS record body", label)
-                return
-
-            client_hello = tls_header + record_body
-
-            tls_result = verify_client_hello(client_hello, secret)
-
-            if tls_result is None:
-                log.debug("[%s] Fake TLS verify failed (size=%d rec=%d) "
-                          "-> masking",
-                          label, len(client_hello), record_len)
-                await proxy_to_masking_domain(
-                    reader, writer, client_hello, masking, label)
-                return
-
-            client_random, session_id, ts = tls_result
-            log.debug("[%s] Fake TLS handshake ok (ts=%d)", label, ts)
-
-            server_hello = build_server_hello(secret, client_random, session_id)
-            writer.write(server_hello)
-            await writer.drain()
-
-            tls_stream = FakeTlsStream(reader, writer)
-
-            try:
-                handshake = await asyncio.wait_for(
-                    tls_stream.readexactly(HANDSHAKE_LEN), timeout=10)
-            except asyncio.IncompleteReadError:
-                log.debug("[%s] incomplete obfs2 init inside TLS", label)
-                return
-        elif masking:
-            log.debug("[%s] non-TLS byte 0x%02X -> HTTP redirect", label,
-                      first_byte[0])
-            redirect = (
-                f"HTTP/1.1 301 Moved Permanently\r\n"
-                f"Location: https://{masking}/\r\n"
-                f"Content-Length: 0\r\n"
-                f"Connection: close\r\n\r\n"
-            ).encode()
-            writer.write(redirect)
-            await writer.drain()
-            return
-        else:
-            try:
-                rest = await asyncio.wait_for(
-                    reader.readexactly(HANDSHAKE_LEN - 1), timeout=10)
-            except asyncio.IncompleteReadError:
-                log.debug("[%s] client disconnected before handshake", label)
-                return
-            handshake = first_byte + rest
+        handshake, clt_reader, clt_writer, label = init
 
         result = _try_handshake(handshake, secret)
         if result is None:
             stats.connections_bad += 1
-            log.debug("[%s] bad handshake (wrong secret or proto)", label)
+            log.warning("[%s] bad handshake (wrong secret or proto)", label)
             try:
-                drain_src = tls_stream or reader
-                while await drain_src.read(4096):
+                while await clt_reader.read(4096):
                     pass
             except Exception:
                 pass
             return
 
-        clt_reader = tls_stream or reader
-        clt_writer = tls_stream or writer
-
         dc, is_media, proto_tag, client_dec_prekey_iv = result
 
         if proto_tag == PROTO_TAG_ABRIDGED:
@@ -339,48 +389,7 @@ async def _handle_client(reader, writer, secret: bytes):
                   label, dc, ' media' if is_media else '', proto_int)
 
         relay_init = _generate_relay_init(proto_tag, dc_idx)
-
-        # key = SHA256(prekey + secret), iv from handshake
-        # "dec" = decrypt data from client; "enc" = encrypt data to client
-        clt_dec_prekey = client_dec_prekey_iv[:PREKEY_LEN]
-        clt_dec_iv = client_dec_prekey_iv[PREKEY_LEN:]
-        clt_dec_key = hashlib.sha256(clt_dec_prekey + secret).digest()
-
-        clt_enc_prekey_iv = client_dec_prekey_iv[::-1]
-        clt_enc_key = hashlib.sha256(
-            clt_enc_prekey_iv[:PREKEY_LEN] + secret).digest()
-        clt_enc_iv = clt_enc_prekey_iv[PREKEY_LEN:]
-
-        clt_decryptor = Cipher(
-            algorithms.AES(clt_dec_key), modes.CTR(clt_dec_iv)
-        ).encryptor()
-        clt_encryptor = Cipher(
-            algorithms.AES(clt_enc_key), modes.CTR(clt_enc_iv)
-        ).encryptor()
-
-        # fast-forward client decryptor past the 64-byte init
-        clt_decryptor.update(ZERO_64)
-
-        # relay side: standard obfuscation (no secret hash, raw key)
-        relay_enc_key = relay_init[SKIP_LEN:SKIP_LEN + PREKEY_LEN]
-        relay_enc_iv = relay_init[SKIP_LEN + PREKEY_LEN:
-                                  SKIP_LEN + PREKEY_LEN + IV_LEN]
-
-        relay_dec_prekey_iv = relay_init[SKIP_LEN:
-                                         SKIP_LEN + PREKEY_LEN + IV_LEN][::-1]
-        relay_dec_key = relay_dec_prekey_iv[:KEY_LEN]
-        relay_dec_iv = relay_dec_prekey_iv[KEY_LEN:]
-
-        tg_encryptor = Cipher(
-            algorithms.AES(relay_enc_key), modes.CTR(relay_enc_iv)
-        ).encryptor()
-        tg_decryptor = Cipher(
-            algorithms.AES(relay_dec_key), modes.CTR(relay_dec_iv)
-        ).encryptor()
-        
-        tg_encryptor.update(ZERO_64)
-
-        ctx = CryptoCtx(clt_decryptor, clt_encryptor, tg_encryptor, tg_decryptor)
+        ctx = _build_crypto_ctx(client_dec_prekey_iv, secret, relay_init)
 
         dc_key = f'{dc}{"m" if is_media else ""}'
         media_tag = " media" if is_media else ""
@@ -448,7 +457,7 @@ async def _handle_client(reader, writer, secret: bytes):
                     stats.ws_errors += 1
                     all_redirects = False
                     log.warning("[%s] DC%d%s WS connect failed: %s",
-                                label, dc, media_tag, exc)
+                                label, dc, media_tag, repr(exc))
 
         # WS failed -> fallback
         if ws is None:
@@ -490,9 +499,9 @@ async def _handle_client(reader, writer, secret: bytes):
 
         await ws.send(relay_init)
 
-        await bridge_ws_reencrypt(clt_reader, clt_writer, ws, label,
+        await bridge_ws_reencrypt(clt_reader, clt_writer, ws, label, ctx,
                                    dc=dc, is_media=is_media,
-                                   ctx=ctx, splitter=splitter)
+                                   splitter=splitter)
 
     except asyncio.TimeoutError:
         log.warning("[%s] timeout during handshake", label)
@@ -506,7 +515,7 @@ async def _handle_client(reader, writer, secret: bytes):
         if getattr(exc, 'winerror', None) == 1236:
             log.debug("[%s] connection aborted by local system", label)
         else:
-            log.error("[%s] unexpected OS error: %s", label, exc)
+            log.error("[%s] unexpected OS error: %s", label, repr(exc))
     except Exception as exc:
         log.error("[%s] unexpected: %s", label, exc, exc_info=True)
     finally:
@@ -535,11 +544,8 @@ async def _run(stop_event: Optional[asyncio.Event] = None):
     if proxy_config.fallback_cfproxy:
         user = proxy_config.cfproxy_user_domain
         if user:
-            proxy_config.cfproxy_domains = [user]
-            proxy_config.active_cfproxy_domain = user
+            balancer.update_domains_list([user])
         else:
-            proxy_config.cfproxy_domains = list(CFPROXY_DEFAULT_DOMAINS)
-            proxy_config.active_cfproxy_domain = random.choice(CFPROXY_DEFAULT_DOMAINS)
             start_cfproxy_domain_refresh()
 
     secret_bytes = bytes.fromhex(proxy_config.secret)
@@ -585,12 +591,11 @@ async def _run(stop_event: Optional[asyncio.Event] = None):
         user_domain = "user" if proxy_config.cfproxy_user_domain else "auto"
         log.info("  CF proxy:      enabled (%s | %s)", prio, user_domain)
     log.info("=" * 60)
-    log.info("  Connect links:")
+    log.info("  Connect:")
     if ftls:
-        log.info("    ee (Fake TLS):        %s", ee_link)
+        log.info("    %s", ee_link)
     else:
-        log.info("       (standard):        %s", proxy_config.secret)
-        log.info("    dd (random padding):  %s", dd_link)
+        log.info("    %s", dd_link)
     log.info("=" * 60)
 
     async def log_stats():
@@ -716,7 +721,7 @@ def main():
     proxy_config.pool_size = max(0, args.pool_size)
     proxy_config.fallback_cfproxy = not args.no_cfproxy
     proxy_config.fallback_cfproxy_priority = args.cfproxy_priority
-    proxy_config.cfproxy_user_domain = args.cfproxy_domain
+    proxy_config.cfproxy_user_domain = args.cfproxy_domain.strip()
     proxy_config.fake_tls_domain = args.fake_tls_domain.strip()
     proxy_config.proxy_protocol = args.proxy_protocol
 

proxy/utils.py

@@ -31,7 +31,7 @@ def human_bytes(n: int) -> str:
     for unit in ('B', 'KB', 'MB', 'GB'):
         if abs(n) < 1024:
             return f"{n:.1f}{unit}"
-        n /= 1024
+        n /= 1024  # type: ignore
     return f"{n:.1f}TB"
 
 

ui/ctk_tray_ui.py

@@ -6,7 +6,7 @@ from dataclasses import dataclass
 from typing import Any, Callable, Dict, List, Optional, Tuple, Union
 
 from proxy import __version__, get_link_host, parse_dc_ip_list
-from proxy.config import proxy_config
+from proxy.balancer import balancer
 from utils.update_check import RELEASES_PAGE_URL, get_status
 
 
@@ -358,7 +358,7 @@ def install_tray_config_form(
         text_color="#ffffff", border_width=0,
         command=lambda: (
             header.winfo_toplevel().iconify(),
-            webbrowser.open("https://github.com/Flowseal/tg-ws-proxy/blob/main/docs/README.md"),
+            webbrowser.open("https://github.com/Flowseal/tg-ws-proxy/blob/main/docs/Funding.md"),
         ),
     ).pack(side="right", padx=(0, 6))
 
@@ -451,7 +451,7 @@ def install_tray_config_form(
             _threading.Thread(target=_worker, daemon=True).start()
         else:
             def _worker_auto():
-                ok_domain, res = _run_cfproxy_auto_test(proxy_config.cfproxy_domains)
+                ok_domain, res = _run_cfproxy_auto_test(balancer.domains)
                 if btn:
                     btn.after(0, lambda: btn.configure(text="Тест", state="normal"))
                     btn.after(0, lambda: _cfproxy_show_auto_test_results(ok_domain, res))

utils/tray_common.py

@@ -132,7 +132,7 @@ def load_config() -> dict:
                 data.setdefault(k, v)
             return data
         except Exception as exc:
-            log.warning("Failed to load config: %s", exc)
+            log.warning("Failed to load config: %s", repr(exc))
     return dict(DEFAULT_CONFIG)
 
 
@@ -242,7 +242,7 @@ def _run_proxy_thread(on_port_busy: Callable[[str], None]) -> None:
     try:
         loop.run_until_complete(_run(stop_event=stop_ev))
     except Exception as exc:
-        log.error("Proxy thread crashed: %s", exc)
+        log.error("Proxy thread crashed: %s", repr(exc))
         if "Address already in use" in str(exc) or "10048" in str(exc):
             on_port_busy(
                 "Не удалось запустить прокси:\n"
@@ -391,7 +391,7 @@ def maybe_notify_update(
             ):
                 webbrowser.open(url)
         except Exception as exc:
-            log.debug("Update check failed: %s", exc)
+            log.warning("Update check failed: %s", repr(exc))
 
     threading.Thread(target=_work, daemon=True, name="update-check").start()