diff --git a/index.html b/index.html
index fabe4d6..1c35ac8 100644
--- a/index.html
+++ b/index.html
@@ -4,26 +4,26 @@
 <textarea id="messages" name="messages" rows="45" cols="100" readonly>
 </textarea>
 
-<script type="text/javascript">
-function main(args) {
-    let messages = document.querySelector("#messages");
-    let account = new String(args['account']);
-    let name = account.split('@', 1).pop() ?? 'unknown';
+<script type="module">
+import { default as $, Rpc2, LogRecord } from '/';
+let { parameters } = await Rpc2.invoke('context');
 
-    name = name.charAt(0).toLocaleUpperCase() + name.slice(1);
-    document.title += ` (${name})`;
+let account = new String(parameters['account']);
+let name = account.split('@', 1).pop() ?? 'unknown';
+name = name.charAt(0).toLocaleUpperCase() + name.slice(1);
+document.title += ` (${name})`;
 
-    setInterval(async () => {
-        let result = await Rpc2.invoke('history');
-        let logs = Array.from(result);
+while (await new Promise(o => setTimeout(o, 1000, true))) {
+    let result = await Rpc2.invoke('history').catch(() => []);
+    let logs = Array.from(result);
 
-        for (let record of logs) {
-            let message = LogRecord.format(record);
-            let node = document.createTextNode(new String(message).concat('\n'));
-            messages.appendChild(node);
-        }
-        messages.scrollTop = messages.scrollHeight;
-    }, 1000);
+    for (let record of logs) {
+        if ($('#messages').childNodes.length >= 500) $('#messages').childNodes.item(0)?.remove();
+        let message = LogRecord.format(record);
+        let node = document.createTextNode(new String(message).concat('\n'));
+        $('#messages').appendChild(node);
+    }
+    $('#messages').scrollTop = messages.scrollHeight;
 }
 </script>
 
@@ -45,4 +45,4 @@ textarea {
 textarea:focus {
     outline: none;
 }
-</style>
\ No newline at end of file
+</style>
diff --git a/main.py b/main.py
index 6ab38e5..f98ef3d 100644
--- a/main.py
+++ b/main.py
@@ -9,7 +9,7 @@ from selenium.webdriver.chrome.webdriver import WebDriver
 from selenium.webdriver.chrome.options import Options
 from selenium.webdriver.common.by import By
 
-from common import jsonrpc2
+from common.jsonrpc2 import ServiceProvider
 from common.utils import *
 
 from io import BytesIO
@@ -33,28 +33,30 @@ WEBURL = "https://crm.xiaoman.cn/business/export"
 APIURL = "https://crm.xiaoman.cn/api/opportunityRead/export"
 
 def main(driver: WebDriver, logger = logging.getLogger('main')):
+    parameters = vars(args)
+    http = PoolManager()
+    sp = ServiceProvider.default()
+
     try:
-        http = PoolManager()
-        parameters = vars(args)
-        driver.get(str(Path('index.html').resolve()))
-        driver.execute_script(jsonrpc2.prelude(), parameters)
+        sp.set('context', lambda: { 'parameters': parameters })
+        driver.get(sp.run())
     except Exception as e:
         logger.critical('Unable to load starup page', exc_info=e)
         return 2
     
     try:
         driver.switch_to.new_window('tab')
-        driver.set_page_load_timeout(parameters.get('timeout'))
+        driver.set_page_load_timeout(parameters['timeout'])
         driver.get(WEBURL)
     except TimeoutException:
         logger.warning('Timeout')
         driver.execute_script("window.stop();")
 
     try:
-        setup(driver, parameters.get('attempts'), parameters.get('timeout'), 0)
+        setup(driver, parameters)
         until(lambda x: 'loginProgress' in x.find_element(By.TAG_NAME, "body").get_attribute('class'), watch=False)
-        account = str(parameters.get('account'))
-        password = str(parameters.get('password'))
+        account = str(parameters['account'])
+        password = str(parameters['password'])
         logger.info('Logging in as %s (%s)', account.split('@', 1).pop(0).capitalize(), account)
 
         locate("input.account").send_keys(account)
@@ -62,7 +64,7 @@ def main(driver: WebDriver, logger = logging.getLogger('main')):
         click("input.agree-checkbox")
         click("button.login-btn")
     except Exception as e:
-        logger.critical('Unable to login to %s', parameters.get('url'), exc_info=e)
+        logger.critical('Unable to login to %s', parameters['url'], exc_info=e)
         return 3
 
     logger.info('Waiting for authentication to complete...')
@@ -101,8 +103,8 @@ def main(driver: WebDriver, logger = logging.getLogger('main')):
             continue
 
         try:
-            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)
+            locate(".safe-verify-dialog:not([style*='display: none']) .mm-modal-content .mm-modal-body input", wait=False).send_keys(parameters['password'])
+            click(".mm-modal-footer button.okki-btn-primary")
         except:
             pass
 
@@ -121,7 +123,7 @@ def main(driver: WebDriver, logger = logging.getLogger('main')):
             href = download.get_attribute('href')
 
             response = http.request("GET", href)
-            text = response.data.decode(parameters.get('encoding')).splitlines()
+            text = response.data.decode(parameters['encoding']).splitlines()
             data = csv.reader(text)
             logger.info('Read %d line(s) total', len(text))
         except Exception as e:
@@ -185,9 +187,9 @@ def main(driver: WebDriver, logger = logging.getLogger('main')):
             href
         )
 
-        if parameters.get('open'):
+        if parameters['open']:
             try:
-                path = Path.home() / 'Downloads' / filename
+                path = Path(parameters['directory']) / filename
                 until(lambda _: path.exists(), watch=False)
                 Popen(['start', str(path)], shell=True)
             except Exception as e:
@@ -204,20 +206,14 @@ if __name__ == '__main__':
         level = logging.getLevelNamesMapping().get(args.log_level, 'INFO')
         logger.setLevel(level)
 
-        logger.info('Initializing...')
-        history = jsonrpc2.History()
-        logger.addHandler(history)
-        opts = jsonrpc2.Options()
-        jsonrpc2.define('history', lambda: history.truncate())
-        jsonrpc2.run(opts)
-
-        logger.info('Creating automation instance')
         opts = Options()
         opts.enable_downloads = True
         opts.add_argument('--deny-permission-prompts')
         opts.add_experimental_option('prefs', { 'download.default_directory': args.directory })
         driver = WebDriver(options=opts)
         status = main(driver)
+    except KeyboardInterrupt:
+        status = 0
     except Exception as e:
         logger.critical('Fatal error', exc_info=e)
         status = 1
diff --git a/requirements.txt b/requirements.txt
index ce78bd3..8d75d2a 100644
Binary files a/requirements.txt and b/requirements.txt differ