use newer Ubuntu and Python in Dockerfile

It's necessary if using upstream SOCKS5 proxy.

Dockerfile

@@ -1,16 +1,14 @@
-FROM python:3.8-slim-buster
+FROM ubuntu:22.04
 
-RUN apt-get update && apt-get install -y libcap2-bin && rm -rf /var/lib/apt/lists/*
+RUN apt-get update && apt-get install --no-install-recommends -y python3 python3-uvloop python3-cryptography python3-socks libcap2-bin ca-certificates && rm -rf /var/lib/apt/lists/*
-RUN setcap cap_net_bind_service=+ep /usr/local/bin/python3.8
+RUN setcap cap_net_bind_service=+ep /usr/bin/python3.10
-
-RUN pip3 --no-cache-dir install cryptography uvloop
-
-COPY mtprotoproxy.py config.py /home/tgproxy/
 
 RUN useradd tgproxy -u 10000
-RUN chown -R tgproxy:tgproxy /home/tgproxy
 
 USER tgproxy
 
 WORKDIR /home/tgproxy/
+
+COPY --chown=tgproxy mtprotoproxy.py config.py /home/tgproxy/
+
 CMD ["python3", "mtprotoproxy.py"]

docker-compose.yml

@@ -7,4 +7,10 @@ services:
     volumes:
         - ./config.py:/home/tgproxy/config.py
         - ./mtprotoproxy.py:/home/tgproxy/mtprotoproxy.py
+        - /etc/localtime:/etc/localtime:ro
+    logging:
+        driver: "json-file"
+        options:
+            max-file: "10"
+            max-size: "10m"
 #    mem_limit: 1024m

mtprotoproxy.py

@@ -196,6 +196,9 @@ def init_config():
     # the next host to forward bad clients
     conf_dict.setdefault("MASK_HOST", conf_dict["TLS_DOMAIN"])
 
+    # set the home domain for the proxy, has an influence only on the log message
+    conf_dict.setdefault("MY_DOMAIN", False)
+
     # the next host's port to forward bad clients
     conf_dict.setdefault("MASK_PORT", 443)
 
@@ -1722,6 +1725,7 @@ def make_metrics_pkt(metrics):
 
     pkt_header_list = []
     pkt_header_list.append("HTTP/1.1 200 OK")
+    pkt_header_list.append("Connection: close")
     pkt_header_list.append("Content-Length: %d" % len(pkt_body))
     pkt_header_list.append("Content-Type: text/plain; version=0.0.4; charset=utf-8")
     pkt_header_list.append("Date: %s" % time.strftime("%a, %d %b %Y %H:%M:%S GMT", time.gmtime()))
@@ -2082,6 +2086,10 @@ def init_ip_info():
     my_ip_info["ipv4"] = get_ip_from_url(IPV4_URL1) or get_ip_from_url(IPV4_URL2)
     my_ip_info["ipv6"] = get_ip_from_url(IPV6_URL1) or get_ip_from_url(IPV6_URL2)
 
+    # the server can return ipv4 address instead of ipv6
+    if my_ip_info["ipv6"] and ":" not in my_ip_info["ipv6"]:
+        my_ip_info["ipv6"] = None
+
     if my_ip_info["ipv6"] and (config.PREFER_IPV6 or not my_ip_info["ipv4"]):
         print_err("IPv6 found, using it for external communication")
 
@@ -2103,9 +2111,12 @@ def print_tg_info():
             print("Since you have TLS only mode enabled the best port is 443", flush=True)
         print_default_warning = True
 
-    ip_addrs = [ip for ip in my_ip_info.values() if ip]
+    if not config.MY_DOMAIN:
-    if not ip_addrs:
+        ip_addrs = [ip for ip in my_ip_info.values() if ip]
-        ip_addrs = ["YOUR_IP"]
+        if not ip_addrs:
+            ip_addrs = ["YOUR_IP"]
+    else:
+        ip_addrs = [config.MY_DOMAIN]
 
     proxy_links = []
 
@@ -2276,21 +2287,21 @@ def create_servers(loop):
 def create_utilitary_tasks(loop):
     tasks = []
 
-    stats_printer_task = asyncio.Task(stats_printer())
+    stats_printer_task = asyncio.Task(stats_printer(), loop=loop)
     tasks.append(stats_printer_task)
 
     if config.USE_MIDDLE_PROXY:
-        middle_proxy_updater_task = asyncio.Task(update_middle_proxy_info())
+        middle_proxy_updater_task = asyncio.Task(update_middle_proxy_info(), loop=loop)
         tasks.append(middle_proxy_updater_task)
 
         if config.GET_TIME_PERIOD:
-            time_get_task = asyncio.Task(get_srv_time())
+            time_get_task = asyncio.Task(get_srv_time(), loop=loop)
             tasks.append(time_get_task)
 
-    get_cert_len_task = asyncio.Task(get_mask_host_cert_len())
+    get_cert_len_task = asyncio.Task(get_mask_host_cert_len(), loop=loop)
     tasks.append(get_cert_len_task)
 
-    clear_resolving_cache_task = asyncio.Task(clear_ip_resolving_cache())
+    clear_resolving_cache_task = asyncio.Task(clear_ip_resolving_cache(), loop=loop)
     tasks.append(clear_resolving_cache_task)
 
     return tasks
@@ -2312,9 +2323,10 @@ def main():
 
     if sys.platform == "win32":
         loop = asyncio.ProactorEventLoop()
-        asyncio.set_event_loop(loop)
+    else:
+        loop = asyncio.new_event_loop()
 
-    loop = asyncio.get_event_loop()
+    asyncio.set_event_loop(loop)
     loop.set_exception_handler(loop_exception_handler)
 
     utilitary_tasks = create_utilitary_tasks(loop)