commit 9fe37795f7f2d87097135061f24e7ac67f9f0a9c
Author: Wei Hong <weidnite1222@gmail.com>
Date:   Sun May 17 14:42:27 2026 +0800

    Update files.

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f10862a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/.env
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..88f780b
--- /dev/null
+++ b/README.md
@@ -0,0 +1,48 @@
+# Server Wind
+
+
+## Installation
+##### Python 3.12 (or newer), git, and uv is required
+
+### Clone repository
+```
+# Main repo
+git clone https://repo.weispace.net/wei/ServerWind.git
+
+# Mirror repo
+git clone https://github.com/WeiDnite1222/ServerWind.git
+```
+
+### Configure python version and install dependencies
+
+```
+uv python pin 3.12.10
+uv pip install -r requirements.txt
+```
+
+## Usage
+
+### Create .env file
+
+```
+DISCORD_TOKEN="YOUR-TOKEN-HERE"
+```
+Replace `YOUR-TOKEN-HERE` to your Discord bot token.
+
+### Use CF DDNSUpdater
+
+#### Go to Cloudflare Dashboard > Click profile icon > Profile > Create Token > Edit zone token to generate token
+
+Open 'config/cf.yaml' and replace some values.
+
+```
+allowedBroadcastServer: []
+cfSecret: YOUR-CF-SECRET-KEY # Replace to your cf secret token
+doIPCheckInterval: 600 # Next IP check interval (sec)
+doUpdate: true # set it to true to enable updater
+domains: [] # subdomains that you want auto-update (Example: { "name": "www.example.com", "proxied": true })
+zone: null # zone of your domain name (such as example.com)
+ddnsBroadcastCode: code-here # IMPORTANT: Replace it that only you know
+```
+
+Remember to restart the tool after you save the config file.
\ No newline at end of file
diff --git a/helper.py b/helper.py
new file mode 100644
index 0000000..5f0e139
--- /dev/null
+++ b/helper.py
@@ -0,0 +1,347 @@
+import asyncio
+import logging
+import os
+import sys
+import threading
+import time
+import requests
+from utils.yaml import yaml_parser, yaml_writer
+from settings import CONFIG_DIR
+
+CF_ZONE_ENDPOINT = "https://api.cloudflare.com/client/v4/zones"
+
+
+class Helper(threading.Thread):
+    def __init__(self):
+        threading.Thread.__init__(self, daemon=True)
+
+    def on_startup(self):
+        pass
+
+    def on_shutdown(self):
+        pass
+
+
+cf_config = {
+    "zone": None,
+    "domains": [],
+    "doUpdate": False,
+    "doIPCheckInterval": 600,
+    "cfSecret": None,
+    "allowedBroadcastServer": [
+    ],
+    "ddnsBroadcastCode": "code-here"
+}
+
+
+class CloudflareDDNSHelper(Helper):
+    def __init__(self, dc):
+        Helper.__init__(self)
+        self.dc = dc
+        self.cfg_path = str(CONFIG_DIR / "cf.yaml")
+        self.logger = logging.getLogger("CFHelper")
+        self.logger.setLevel(logging.INFO)
+        formatter = logging.Formatter('[%(asctime)s][%(name)s]: %(message)s')
+        dc_formatter = logging.Formatter('[%(name)s]: %(message)s')
+        sh = logging.StreamHandler(sys.stdout)
+        sh.setFormatter(formatter)
+        dc_sh = logging.StreamHandler(self.DCStream(self))
+        dc_sh.setFormatter(dc_formatter)
+        self.logger.addHandler(dc_sh)
+        self.logger.addHandler(sh)
+
+        self.init = False
+        self.ip = None
+
+        self.config = cf_config
+        self.allowed_broadcast_channels = {}
+
+        @self.dc.handle_command("/cf:update_ddns")
+        async def renew(client, message):
+            guild = getattr(message, "guild", None)
+            if guild is None:
+                await message.channel.send("This command can only be used in server channels.")
+                return
+
+            if self.is_allowed_broadcast_server(guild.name):
+                self.update_ddns()
+                await message.channel.send(f"Updating DDNS...")
+            else:
+                await message.channel.send(f"Unsupported server: {guild.name}")
+
+        @self.dc.handle_command("/cf:add_channel")
+        async def add_channel(client, message):
+            guild = getattr(message, "guild", None)
+            if guild is None:
+                await message.channel.send("This command can only be used in server channels.")
+                return
+
+            raw = message.content[len("/cf:add_channel"):].strip()
+            if raw == "":
+                await message.channel.send("Usage: /cf:add_channel SECRET_CODE")
+                return
+
+            ok, result = self.add_broadcast_channel(
+                server_name=guild.name,
+                channel_id=message.channel.id,
+                input_code=raw
+            )
+            await message.channel.send(result)
+
+    class DCStream:
+        def __init__(self, helper):
+            self.helper = helper
+
+        def write(self, data):
+            content = str(data).strip()
+
+            if not content:
+                return
+
+            for server_name, channels in self.helper.allowed_broadcast_channels.items():
+                for ch_id in channels:
+                    channel = self.helper.dc.client.get_channel(ch_id)
+
+                    if channel is None:
+                        continue
+
+                    guild = getattr(channel, "guild", None)
+                    if guild is None or guild.name != server_name:
+                        continue
+
+                    asyncio.run_coroutine_threadsafe(channel.send(content), self.helper.dc.client.loop)
+
+        def flush(self):
+            pass
+
+    def run(self):
+        self.on_startup()
+        while True:
+            result = self.detect_ip_change()
+
+            if result:
+                self.update_ddns()
+
+            time.sleep(self.config.get("doIPCheckInterval", cf_config["doIPCheckInterval"]))
+
+    def detect_ip_change(self):
+        if not self.init:
+            self.ip = self.what_is_my_ip()
+            self.init = True
+            return False
+
+        ip = self.what_is_my_ip()
+
+        if self.ip is None:
+            self.logger.warning("Unable to get IP. Is the internet connected?")
+            return False
+
+        if self.ip != ip:
+            self.logger.info("IP change detected!")
+            self.ip = ip
+            return True
+
+        return False
+
+    def what_is_my_ip(self):
+        try:
+            response = requests.get('https://api.ipify.org', timeout=5)
+            public_ip = response.text
+            return public_ip
+        except requests.exceptions.RequestException as e:
+            self.logger.error("An error occurred while getting ip: {}".format(e))
+            return None
+
+    def update_ddns(self):
+        domains = self.config.get('domains', [])
+
+        headers = {
+            "Content-Type": "application/json",
+            "Authorization": f"Bearer {self.config.get('cfSecret')}",
+        }
+
+        try:
+            r = requests.get(CF_ZONE_ENDPOINT, headers=headers, params={
+                "name": self.config.get('zone', None),
+            })
+
+            if r.status_code == 200:
+                data = r.json()
+            else:
+                self.logger.error("Unable to get DDNS data. Status code: {}".format(r.status_code))
+                return
+
+        except requests.exceptions.RequestException as e:
+            self.logger.error("An error occurred while getting CF zone: {}".format(e))
+            return
+
+        try:
+            zone_id = data.get("result", {})[0].get("id", None)
+        except Exception as e:
+            if type(e) == requests.exceptions.RequestException:
+                self.logger.error("An error occurred while getting CF zone id: {}".format(e))
+            elif type(e) == IndexError:
+                self.logger.error("Unable to get zone id. Is the zone name correct?")
+            return
+
+        try:
+            r = requests.get(f"{CF_ZONE_ENDPOINT}/{zone_id}/dns_records", headers=headers, timeout=5)
+
+            if r.status_code == 200:
+                dns_records = r.json().get("result", {})
+            else:
+                self.logger.error("Unable to get dns records. Status code: {}".format(r.status_code))
+                return
+        except requests.exceptions.RequestException as e:
+            self.logger.error("An error occurred while getting DNS records: {}".format(e))
+            return
+
+        for item in domains:
+            domain = item.get("name", None)
+            proxied = item.get("proxied", False)
+            domain_type = item.get("type", "A")
+
+            if domain is None:
+                continue
+
+            record_id = None
+
+            for record in dns_records:
+                name = record.get("name", None)
+                record_type = record.get("type", None)
+
+                if name == domain and record_type == domain_type:
+                    record_id = record.get("id", None)
+
+            if record_id is None:
+                self.logger.warning(
+                    f"The domain {domain} ({domain_type}) does not in CF zone {self.config.get('zone', None)}")
+                continue
+
+            request_data = {
+                "type": domain_type,
+                "name": domain,
+                "content": self.ip,
+                "ttl": 120,
+                "proxied": proxied
+            }
+
+            try:
+                r = requests.put(f"{CF_ZONE_ENDPOINT}/{zone_id}/dns_records/{record_id}",
+                                 json=request_data,
+                                 headers=headers, timeout=5)
+
+                if r.status_code == 200:
+                    self.logger.info("Successfully updated DNS record for: {} > {}".format(domain, self.ip))
+                else:
+                    try:
+                        error_detail = r.json()
+                    except ValueError:
+                        error_detail = r.text
+                    self.logger.error(
+                        "Unable to update DNS record for domain name {}, HTTP Code: {}, response: {}".format(
+                            domain, r.status_code, error_detail))
+            except requests.exceptions.RequestException as e:
+                self.logger.error(f"Unable to update dns record for domain name {domain}: {e}")
+                continue
+
+    def parse_allowed_broadcast_channels(self):
+        raw = self.config.get("allowedBroadcastServer", [])
+        allowed = {}
+
+        if type(raw) is not list:
+            self.logger.warning("allowedBroadcastServer is not list, skip channel broadcast.")
+            return allowed
+
+        for server_entry in raw:
+            if type(server_entry) is not dict:
+                continue
+
+            for server_name, server_cfg in server_entry.items():
+                if type(server_cfg) is not dict:
+                    continue
+
+                channels = server_cfg.get("channels", [])
+                if type(channels) is not list:
+                    continue
+
+                parsed_channels = set()
+                for channel_id in channels:
+                    try:
+                        parsed_channels.add(int(channel_id))
+                    except (TypeError, ValueError):
+                        self.logger.warning(f"Invalid channel id in {server_name}: {channel_id}")
+
+                if len(parsed_channels) > 0:
+                    allowed[server_name] = parsed_channels
+
+        return allowed
+
+    def is_allowed_broadcast_server(self, server_name):
+        return server_name in self.allowed_broadcast_channels
+
+    def get_broadcast_code(self):
+        for key in ("broadcastCode", "ddnsBroadcastCode", "code"):
+            value = self.config.get(key, None)
+            if value is not None:
+                return str(value).strip()
+        return None
+
+    def serialize_allowed_broadcast_channels(self):
+        result = []
+        for server_name, channels in self.allowed_broadcast_channels.items():
+            result.append({
+                server_name: {
+                    "channels": [str(ch_id) for ch_id in sorted(channels)]
+                }
+            })
+        return result
+
+    def save_config(self):
+        yaml_writer(self.cfg_path, self.config)
+
+    def add_broadcast_channel(self, server_name, channel_id, input_code):
+        expected_code = self.get_broadcast_code()
+
+        if expected_code is None or expected_code == "":
+            return False, "Broadcast code is not configured in cf.yaml."
+
+        if str(input_code).strip() != expected_code:
+            return False, "Invalid code."
+
+        if server_name not in self.allowed_broadcast_channels:
+            self.allowed_broadcast_channels[server_name] = set()
+
+        if channel_id in self.allowed_broadcast_channels[server_name]:
+            return True, "This channel is already in DDNS broadcast list."
+
+        self.allowed_broadcast_channels[server_name].add(channel_id)
+        self.config["allowedBroadcastServer"] = self.serialize_allowed_broadcast_channels()
+
+        try:
+            self.save_config()
+        except Exception as e:
+            self.logger.error(f"Unable to save cf.yaml: {e}")
+            return False, "Failed to save configuration."
+
+        return True, "Added current channel to DDNS broadcast list."
+
+    def on_startup(self):
+        self.logger.info("Starting...")
+
+        if not os.path.exists(self.cfg_path):
+            try:
+                yaml_writer(self.cfg_path, cf_config)
+            except Exception as e:
+                self.logger.error("Unable to create configuration file: {}".format(e))
+        else:
+            try:
+                data = yaml_parser(self.cfg_path)
+                if type(data) is not dict:
+                    self.logger.warning("The configuration file type is incorrect. Expect dict, got str.")
+                else:
+                    self.config = data
+            except Exception as e:
+                self.logger.error("Unable to parse configuration file: {}".format(e))
+
+        self.allowed_broadcast_channels = self.parse_allowed_broadcast_channels()
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..ef4cf2d
--- /dev/null
+++ b/main.py
@@ -0,0 +1,125 @@
+import logging
+import sys
+import threading
+import time
+import os
+import discord
+import dotenv
+from discord.ext import commands
+from helper import CloudflareDDNSHelper
+
+class DiscordServer(threading.Thread):
+    def __init__(self, daemon=False, **kwargs):
+        threading.Thread.__init__(self, daemon=daemon, **kwargs)
+        self.intents = discord.Intents.default()
+        self.intents.message_content = True
+        self.client = discord.Client(intents=self.intents)
+        self.token = os.getenv("DISCORD_TOKEN")
+
+        self.bot = commands.Bot(command_prefix="!", intents=self.intents)
+
+        self.commands = {}
+
+        @self.client.event
+        async def on_ready():
+            print(f'Logged in as {self.client.user}')
+
+        @self.client.event
+        async def on_message(message):
+            if message.author == self.client.user:
+                return
+
+            if message.content.startswith('/test'):
+                await message.channel.send(f'Hello, {message.author.name}!')
+
+            if message.content.startswith('/echo'):
+                msg = message.content[len('/echo'):]
+                await message.channel.send(msg)
+
+            if message.content.startswith('/where'):
+                if hasattr(message, 'guild'):
+                    await message.channel.send(f'You are in server {message.guild.name}')
+                else:
+                    await message.channel.send(f'You are in private chat.')
+
+            for command in self.commands:
+                if message.content.startswith(command):
+                    await self.commands[command](self.client, message)
+
+    def handle_command(self, command_prefix):
+        def decorator(func):
+            self.commands[command_prefix] = func
+
+            def inner(*args, **kwargs):
+                return func(*args, **kwargs)
+
+            return inner
+
+        return decorator
+
+    def run(self):
+        if self.token is None:
+            raise Exception('Discord bot token is required. Place it (DISCORD_TOKEN) in .env file.')
+
+        self.client.run(self.token)
+
+        while True:
+            time.sleep(1)
+
+
+class App:
+    def __init__(self):
+        self.logger = logging.getLogger('ServerWind.Main')
+        self.logger.setLevel(logging.INFO)
+        formatter = logging.Formatter('[%(asctime)s][%(name)s]: %(message)s')
+        sh = logging.StreamHandler(sys.stdout)
+        sh.setFormatter(formatter)
+        self.logger.addHandler(sh)
+
+        self.dc_server = DiscordServer(daemon=True)
+        self.cf_helper = CloudflareDDNSHelper(self.dc_server)
+
+    def main(self):
+        try:
+            while self.dc_server.is_alive():
+                time.sleep(1)
+        except KeyboardInterrupt:
+            self.logger.warning('User interrupted.')
+        finally:
+            self.logger.info("Server stopped.")
+
+    def on_startup(self):
+        self.logger.info("SeverHelper starting...")
+
+        self.logger.info("Starting Discord server...")
+        self.dc_server.start()
+
+        self.logger.info("Starting CF helper...")
+        self.cf_helper.start()
+
+        self.logger.info("Registering command handlers...")
+        @self.dc_server.handle_command("/userinfo")
+        async def userinfo(client, message):
+            await message.channel.send("unfinished")
+
+        @self.dc_server.handle_command("/info")
+        async def info(client, message):
+            await message.channel.send(f"My name is {client.user.name}\n")
+
+    def on_shutdown(self):
+        pass
+
+    def run(self):
+        self.on_startup()
+        self.main()
+        self.on_shutdown()
+
+
+if __name__ == '__main__':
+    try:
+        dotenv.load_dotenv()
+    except Exception:
+        raise Exception('Failed to load .env file. Create it before running.')
+
+    app = App()
+    app.run()
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..d31d5a4
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,5 @@
+pip~=26.1
+discord==2.3.2
+requests==2.34.2
+pyyaml==6.0.3
+dotenv==0.9.9
\ No newline at end of file
diff --git a/settings.py b/settings.py
new file mode 100644
index 0000000..c7ed708
--- /dev/null
+++ b/settings.py
@@ -0,0 +1,6 @@
+import os
+from pathlib import Path
+
+CONFIG_DIR = Path(__file__).resolve().parent / 'config'
+
+os.makedirs(CONFIG_DIR, exist_ok=True)
\ No newline at end of file
diff --git a/utils/yaml.py b/utils/yaml.py
new file mode 100644
index 0000000..d498d71
--- /dev/null
+++ b/utils/yaml.py
@@ -0,0 +1,28 @@
+import yaml
+
+def yaml_parser(yaml_filepath):
+    """
+    :INFO: Read yaml file. (Use method safe_load instead of the unsafe "load" method)
+    讀取YAML檔案 (使用safe_load而不是load來避免可能的安全隱患)
+
+    :WARN: You may need call this func within try-except block to avoid unexpected errors.
+    警告>你可能會在呼叫此函式時需要將其(呼叫代碼)包裝在try-except(錯誤處理)裡來避免例外情況發生。
+    """
+    with open(yaml_filepath, 'r') as f:
+        data = yaml.safe_load(f)
+        f.close()
+        return data
+
+
+def yaml_writer(target_yaml_filepath, new_yaml_data, indent=4) -> None:
+    """
+    Write new data to yaml file.
+
+    :WARN: You may need call this func within try-except block to avoid unexpected errors.
+    警告>你可能會在呼叫此函式時需要將其(呼叫代碼)包裝在try-except(錯誤處理)裡來避免例外情況發生。
+    """
+
+    with open(target_yaml_filepath, 'w') as f:
+        yaml.dump(new_yaml_data, f, indent=indent)
+        f.close()
+        return