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feat: Rework API client to use new GRDF login flow #90

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feat: Rework API client to use new GRDF login flow #90

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92 changes: 59 additions & 33 deletions pygazpar/api_client.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,5 @@
import http.cookiejar
import json
import logging
import re
import time
import traceback
from datetime import date
Expand All @@ -9,21 +8,20 @@

from requests import Response, Session

SESSION_TOKEN_URL = "https://connexion.grdf.fr/api/v1/authn"
SESSION_TOKEN_PAYLOAD = """{{
"username": "{0}",
"password": "{1}",
"options": {{
"multiOptionalFactorEnroll": "false",
"warnBeforePasswordExpired": "false"
}}
START_URL = "https://monespace.grdf.fr/"

MAIL_SESSION_TOKEN_URL = "https://connexion.grdf.fr/idp/idx/identify"
MAIL_SESSION_TOKEN_PAYLOAD = """{{
"identifier": "{0}",
"stateHandle": "{1}"
}}"""

AUTH_TOKEN_URL = "https://connexion.grdf.fr/login/sessionCookieRedirect"
AUTH_TOKEN_PARAMS = """{{
"checkAccountSetupComplete": "true",
"token": "{0}",
"redirectUrl": "https://monespace.grdf.fr"
PASSWORD_SESSION_TOKEN_URL = "https://connexion.grdf.fr/idp/idx/challenge/answer"
PASSWORD_SESSION_TOKEN_PAYLOAD = """{{
"credentials": {{
"passcode": "{0}"
}},
"stateHandle": "{1}"
}}"""

API_BASE_URL = "https://monespace.grdf.fr/api"
Expand Down Expand Up @@ -79,38 +77,66 @@ def login(self):
return

session = Session()
session.headers.update({"domain": "grdf.fr"})
session.headers.update({"Content-Type": "application/json"})
session.headers.update({"X-Requested-With": "XMLHttpRequest"})
session.headers.update({"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64)"})

payload = SESSION_TOKEN_PAYLOAD.format(self._username, self._password)
start_response = session.get(START_URL)
if start_response.status_code != 200:
raise ServerError(
f"An error occurred while logging in start. Status code: {start_response.status_code} - {start_response.url}",
start_response.status_code,
)

response = session.post(SESSION_TOKEN_URL, data=payload)
pattern = r'"stateToken"\s*:\s*"([^"]+)"'
match = re.search(pattern, start_response.text)
if match:
state_token_html = match.group(1)
state_token = state_token_html.replace("\\x2D", "-")
else:
raise ValueError("Cannot retrieve stateToken inside HTML response")

payload = MAIL_SESSION_TOKEN_PAYLOAD.format(self._username, state_token)
session.cookies.set("ln", self._username)

mail_response = session.post(
MAIL_SESSION_TOKEN_URL,
data=payload,
headers={"Accept": "application/json; okta-version=1.0.0", "Content-Type": "application/json"},
)

if response.status_code != 200:
if mail_response.status_code != 200:
raise ServerError(
f"An error occurred while logging in. Status code: {response.status_code} - {response.text}",
response.status_code,
f"An error occurred while logging in mail. Status code: {mail_response.status_code} - {mail_response.text}",
mail_response.status_code,
)

session_token = response.json().get("sessionToken")
state_handle = mail_response.json().get("stateHandle")

jar = http.cookiejar.CookieJar()
payload = PASSWORD_SESSION_TOKEN_PAYLOAD.format(self._password, state_handle)

self._session = Session() # pylint: disable=attribute-defined-outside-init
self._session.headers.update({"Content-Type": "application/json"})
self._session.headers.update({"X-Requested-With": "XMLHttpRequest"})
password_response = session.post(
PASSWORD_SESSION_TOKEN_URL,
data=payload,
headers={"Accept": "application/json; okta-version=1.0.0", "Content-Type": "application/json"},
)

params = json.loads(AUTH_TOKEN_PARAMS.format(session_token))
if password_response.status_code != 200:
raise ServerError(
f"An error occurred while logging in password. Status code: {password_response.status_code} - {password_response.text}",
password_response.status_code,
)

response = self._session.get(AUTH_TOKEN_URL, params=params, allow_redirects=True, cookies=jar) # type: ignore
success_url = password_response.json()["success"]["href"]

if response.status_code != 200:
response_redirect = session.get(success_url)

if response_redirect.status_code != 200:
raise ServerError(
f"An error occurred while getting the auth token. Status code: {response.status_code} - {response.text}",
response.status_code,
f"An error occurred while logging in response_redirect. Status code: {response_redirect.status_code} - {response_redirect.url}",
response_redirect.status_code,
)

self._session = session

# ------------------------------------------------------
def is_logged_in(self) -> bool:
return self._session is not None
Expand Down
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