Bump supported software version and display login error message

tconnectsync/api/common.py

@@ -127,7 +127,7 @@ def split_days_range(start_a, end_a, days: int = 5) -> List[Tuple[str, str]]:
 class ApiException(Exception):
     def __init__(self, status_code, text, *args, **kwargs):
         self.status_code = status_code
-        super().__init__('%s (HTTP %s)' % (text, status_code), *args, **kwargs)
+        super().__init__('%s%s' % (text, ' (HTTP %s)' % status_code if status_code else ''), *args, **kwargs)
 
 class ApiLoginException(ApiException):
     pass

tconnectsync/api/controliq.py

@@ -5,7 +5,7 @@ import logging
 
 from bs4 import BeautifulSoup
 
-from ..util import timeago
+from ..util import timeago, cap_length
 from .common import parse_date, base_headers, base_session, ApiException, ApiLoginException
 
 logger = logging.getLogger(__name__)
@@ -14,7 +14,7 @@ class ControlIQApi:
     BASE_URL = 'https://tdcservices.tandemdiabetes.com/'
     LOGIN_URL = 'https://tconnect.tandemdiabetes.com/login.aspx?ReturnUrl=%2f'
 
-    LAST_CONFIRMED_SOFTWARE_VERSION = 't:connect 7.14.0.1'
+    LAST_CONFIRMED_SOFTWARE_VERSION = 't:connect 7.15.0.1'
 
     userGuid = None
     accessToken = None
@@ -34,12 +34,20 @@ class ControlIQApi:
             data = self._build_login_data(email, password, soup)
 
             req = s.post(self.LOGIN_URL, data=data, headers={'Referer': self.LOGIN_URL, **base_headers()}, allow_redirects=False)
+            # HTTP 200 is reported when credentials are incorrect
+            if req.status_code == 200:
+                login_error = self._find_login_error(req.text)
+                if not login_error:
+                    login_error = 'Check your login credentials.'
+                raise ApiLoginException(None, 'Error logging in to t:connect: %s' % login_error)
+
             if req.status_code != 302:
-                raise ApiLoginException(req.status_code, 'Error logging in to t:connect. Check your login credentials.')
+                raise ApiLoginException(req.status_code, 'Error logging in to t:connect')
 
 
             fwd = s.post(urllib.parse.urljoin(self.LOGIN_URL, req.headers['Location']), cookies=req.cookies, headers=base_headers())
             if fwd.status_code != 200:
+                logger.warn("Received non-HTTP 200: %s" % req.text)
                 raise ApiException(fwd.status_code, 'Error retrieving t:connect login cookies.')
 
             self.userGuid = req.cookies['UserGUID']
@@ -79,6 +87,14 @@ class ControlIQApi:
             "txtLoginPassword_ClientState": '{"enabled":true,"emptyMessage":"","validationText":"%s","valueAsString":"%s","lastSetTextBoxValue":"%s"}' % (password, password, password)
         }
 
+    def _find_login_error(self, text):
+        try:
+            soup = BeautifulSoup(text, features='lxml')
+            notice_error = soup.select_one(".notice_error").text.strip()
+            return notice_error
+        except Exception:
+            return None
+
     def needs_relogin(self):
         diff = (arrow.get(self.accessTokenExpiresAt) - arrow.get())
         return (diff.seconds <= 5 * 60)

tconnectsync/util/__init__.py

@@ -28,4 +28,9 @@ def removesuffix(input_string, suffix):
 def removeprefix(input_string, prefix):
     if prefix and input_string.startswith(prefix):
         return input_string[len(prefix):]
-    return input_string
+    return input_string
+
+def cap_length(text, maxlen):
+    if not text or len(text) <= maxlen:
+        return text
+    return '%s[...]%s' % (text[:maxlen//2], text[maxlen//-2:])

tests/api/test_controliq.py

@@ -111,12 +111,65 @@ class TestControlIQApi(unittest.TestCase):
 
                 text=post_callback)
 
-            self.assertRaises(ApiLoginException, ciq.login, 'email@email.com', 'password')
+            self.assertRaisesRegex(ApiLoginException, 'Error logging in to t:connect: Check your login credentials.', ciq.login, 'email@email.com', 'password')
 
             self.assertIsNone(ciq.userGuid)
             self.assertIsNone(ciq.accessToken)
             self.assertIsNone(ciq.accessTokenExpiresAt)
 
+    def test_login_invalid_credentials_parsed_message(self):
+        ciq = ControlIQApi()
+        ciq.LOGIN_URL = RealControlIQApi.LOGIN_URL
+        ciq.login = lambda email, password: RealControlIQApi.login(ciq, email, password)
+
+        with requests_mock.Mocker() as m:
+            m.get('https://tconnect.tandemdiabetes.com/login.aspx?ReturnUrl=%2f',
+                request_headers=base_headers(),
+
+                text=self.LOGIN_HTML)
+
+            def post_callback(request, context):
+                context.status_code = 200
+                return '<html><body><div class="notice_error" id="literalMessage" style="">The email address or password you entered is invalid. Please re-enter and try again.</div></body></html>'
+
+            m.post('https://tconnect.tandemdiabetes.com/login.aspx?ReturnUrl=%2f',
+                request_headers={'Referer': ciq.LOGIN_URL, **base_headers()},
+
+                text=post_callback)
+
+            self.assertRaisesRegex(ApiLoginException, 'Error logging in to t:connect: The email address or password you entered is invalid. Please re-enter and try again.', ciq.login, 'email@email.com', 'password')
+
+            self.assertIsNone(ciq.userGuid)
+            self.assertIsNone(ciq.accessToken)
+            self.assertIsNone(ciq.accessTokenExpiresAt)
+
+    def test_login_unexpected_http_code(self):
+        ciq = ControlIQApi()
+        ciq.LOGIN_URL = RealControlIQApi.LOGIN_URL
+        ciq.login = lambda email, password: RealControlIQApi.login(ciq, email, password)
+
+        with requests_mock.Mocker() as m:
+            m.get('https://tconnect.tandemdiabetes.com/login.aspx?ReturnUrl=%2f',
+                request_headers=base_headers(),
+
+                text=self.LOGIN_HTML)
+
+            def post_callback(request, context):
+                context.status_code = 500
+                return '<html><body>...</body></html>'
+
+            m.post('https://tconnect.tandemdiabetes.com/login.aspx?ReturnUrl=%2f',
+                request_headers={'Referer': ciq.LOGIN_URL, **base_headers()},
+
+                text=post_callback)
+
+            self.assertRaisesRegex(ApiLoginException, 'Error logging in to t:connect \(HTTP 500\)', ciq.login, 'email@email.com', 'password')
+
+            self.assertIsNone(ciq.userGuid)
+            self.assertIsNone(ciq.accessToken)
+            self.assertIsNone(ciq.accessTokenExpiresAt)
+
+
     def fake_get_with_http_code(self, http_code, expected_endpoint, num_times):
         tries = 0
         def fake_get(endpoint, query):