diff --git a/index.html b/index.html
index 486ea89..6b23a51 100644
--- a/index.html
+++ b/index.html
@@ -5,30 +5,23 @@
 </textarea>
 
 <script type="text/javascript">
-function main(url, parameters) {
-    let ws = new WebSocket(url);
+function main(args) {
     let messages = document.querySelector("#messages");
-
-    let account = new String(parameters['account']);
+    let account = new String(args['account']);
     let name = account.split('@', 1).pop() ?? 'unknown';
 
     name = name.charAt(0).toLocaleUpperCase() + name.slice(1);
-    document.title = `${name} (${account})`;
+    document.title += ` (${name})`;
 
-    ws.addEventListener('message', (e) => {
-        object = JSON.parse(e.data);
-        lines = Array.from(object.result);
+    setInterval(async () => {
+        let result = await invoke('sync');
+        let lines = Array.from(result);
 
         for (let line of lines) {
             node = document.createTextNode(new String(line).concat('\n'));
             messages.appendChild(node);
         }
         messages.scrollTop = messages.scrollHeight;
-    });
-
-    setInterval(() => {
-        data = JSON.stringify({ method: "sync", params: null });
-        ws.send(data);
     }, 1000);
 }
 </script>
diff --git a/main.py b/main.py
index 178572a..491b60d 100644
--- a/main.py
+++ b/main.py
@@ -2,12 +2,8 @@ import argparse
 import openpyxl
 import logging
 import base64
-import json
 import csv
 
-import trio
-import trio_websocket as ws
-
 from selenium.common.exceptions import StaleElementReferenceException, TimeoutException
 from selenium.webdriver.chrome.webdriver import WebDriver
 from selenium.webdriver.chrome.options import Options
@@ -18,95 +14,31 @@ from selenium.webdriver.remote.webelement import WebElement
 from selenium.webdriver.common.bidi.network import Request as NetworkRequest
 
 from io import BytesIO
-from enum import Enum
-from typing import Self, Callable
+from common import jsonrpc2
+from typing import Callable
 from pathlib import Path
 from urllib3 import PoolManager
-from threading import Thread
+from subprocess import Popen
 
-parser = argparse.ArgumentParser(description="Opportunity Exporter")
+parser = argparse.ArgumentParser(description="Opportunity Export")
 parser.add_argument('account', type=str)
 parser.add_argument('password', type=str)
 parser.add_argument('-e', '--encoding', type=str, default="utf-8-sig")
 parser.add_argument('-t', '--timeout', type=int, default=60)
 parser.add_argument('-r', '--attempts', type=int, default=3)
 parser.add_argument('-l', '--log-level', choices=['DEBUG', 'INFO', 'WARNING', 'ERROR', 'CRITICAL'])
+args = parser.parse_args()
 
 WEBURL = "https://crm.xiaoman.cn/business/export"
 APIURL = "https://crm.xiaoman.cn/api/opportunityRead/export"
 
-args = parser.parse_args()
-handlers = {}
-connection, server = None, None
-
-class Request[T]:
-    def __init__(self, method: str, params: T):
-        if not isinstance(method, str): raise TypeError()
-        self.method = method
-        self.params = params
-
-    @classmethod
-    def load(cls, raw: bytes) -> Self:
-        data = json.loads(raw)
-        return cls(**data)
-
-class Response[T]:
-    def __init__(self, result: T):
-        self.result = result
-
-    def __str__(self):
-        data = { 'result': self.result }
-        return json.dumps(data)
-
-class Error(Enum):
-    PARSE_ERROR = -200
-    INVALID_REQUEST = -300
-    METHOD_NOT_FOUND = -400
-    INTERNAL_ERROR = -500
-
-    def __str__(self):
-        data = { 'error': self.value }
-        return json.dumps(data)
-
-class History(logging.Handler):
-    def __init__(self):
-        super().__init__()
-        self.records = []
-
-    def emit(self, record):
-        self.records.append(record)
-
-    def truncate(self) -> list:
-        copy = self.records.copy()
-        self.records.clear()
-        return copy
-
-class ConnectionContext:
-    def __enter__(self):
-        self.healthcheck()
-        return self
-
-    def __exit__(self, exc_type, exc, tb):
-        self.healthcheck()
-        return True
-    
-    class Error(Exception):
-        pass
-    
-    @classmethod
-    def healthcheck(cls):
-        if connection.closed is not None:
-            raise cls.Error()
-
 def main(driver: WebDriver, logger = logging.getLogger('main')):
     try:
         http = PoolManager()
-        context = ConnectionContext()
-
-        driver.get(str(Path('index.html').resolve()))
-        endpoint = server.listeners[0]
+        context = jsonrpc2.ConnectionContext()
         parameters = vars(args)
-        driver.execute_script(f"main(...arguments);", f'ws://{endpoint.address}:{endpoint.port}', parameters)
+        driver.get(str(Path('index.html').resolve()))
+        driver.execute_script(jsonrpc2.prelude(), parameters)
     except Exception as e:
         logger.critical('Unable to load starup page', exc_info=e)
         return 2
@@ -214,7 +146,7 @@ def main(driver: WebDriver, logger = logging.getLogger('main')):
             continue
 
         try:
-            locate(".mm-modal-content .mm-modal-body input", wait=False).send_keys(parameters.get('password'))
+            locate(".safe-verify-dialog:not([style*='display: none']) .mm-modal-content .mm-modal-body input", wait=False).send_keys(parameters.get('password'))
             click(".mm-modal-footer button.okki-btn-primary", wait=False)
         except:
             pass
@@ -288,6 +220,7 @@ def main(driver: WebDriver, logger = logging.getLogger('main')):
         text = data.decode('ascii')
         mime = 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
         href = f"data:{mime};base64,{text}"
+        filename = filename.replace('.csv', '.xlsx')
 
         driver.switch_to.new_window('tab')
         driver.execute_script(
@@ -297,71 +230,26 @@ def main(driver: WebDriver, logger = logging.getLogger('main')):
             link.href = arguments[1];
             link.click();
             """,
-            filename.replace('.csv', '.xlsx'),
+            filename,
             href
         )
 
+        try: Popen(['start', (Path.home() / 'Downloads' / filename).as_posix()], shell=True)
+        except Exception as e: logger.warning('Unable to open exported excel file at %s' % file, exc_info=e)
+
         driver.close()
         driver.switch_to.window(driver.window_handles[1])
         logger.info('Done')
         ready = False
 
-async def handler(request: ws.WebSocketRequest, logger = logging.getLogger('websocket')):
-    global connection
-    websocket = await request.accept()
-
-    if connection is None:
-        connection = websocket
-    else:
-        await websocket.aclose(code=1000, reason="Non-singular connection prohibited")
-        return
-
-    while True:
-        try:
-            message = await connection.get_message()
-            inbound = Request.load(message)
-
-            handler = handlers[inbound.method]
-            results = handler(inbound.params)
-            response = Response(results)
-        except json.decoder.JSONDecodeError:
-            logger.error('Parse error')
-            response = Error.PARSE_ERROR
-        except TypeError:
-            logger.error('Invalid request')
-            response = Error.INVALID_REQUEST
-        except KeyError:
-            logger.error('Method not found: `%s`', inbound.method)
-            response = Error.METHOD_NOT_FOUND
-        except Exception as e:
-            logger.error('Internal error', exc_info=e)
-            response = Error.INTERNAL_ERROR
-        
-        await connection.send_message(str(response))
-
-async def backend(listen='127.0.0.1', port=0):
-    import _thread as t
-    global server
-
-    listeners = await trio.open_tcp_listeners(port, host=listen)
-    server = ws.WebSocketServer(handler, listeners, max_message_size=125_000_000)
-    await server.run()
-    t.interrupt_main()
-
 if __name__ == '__main__':
     try:
         logging.basicConfig(level=logging.INFO, format="[%(asctime)s] [%(levelname)s] [%(name)s] %(message)s", datefmt="%Y-%m-%d %H:%M")
         logger = logging.getLogger()
-        formatter = logger.handlers[0].formatter
-        history = History()
-        logger.addHandler(history)
+        logger.info('Initializing...')
         level = logging.getLevelNamesMapping().get(args.log_level, 'INFO')
         logger.setLevel(level)
-
-        logger.info('Initializing...')
-        handlers.setdefault('sync', lambda _: list(map(lambda x: formatter.format(x), history.truncate())))
-        thread = Thread(target=lambda: trio.run(backend), daemon=True)
-        thread.start()
+        jsonrpc2.run(logger)
 
         logger.info('Creating automation instance')
         opts = Options()
diff --git a/requirements.txt b/requirements.txt
index 029c619..9925375 100644
Binary files a/requirements.txt and b/requirements.txt differ