Added back csrf token env variable

Author: fspv

Diff for: .github/workflows/build-deck.yml

@@ -30,6 +30,7 @@ jobs:
           && sqlite3 collection.anki2 .dump
         env:
           LEETCODE_SESSION_ID: ${{ secrets.LEETCODE_SESSION_ID }}
+          LEETCODE_CSRF_TOKEN: ${{ secrets.LEETCODE_CSRF_TOKEN }}
       - name: Test build Anki Deck (non-default output file)
         run: >
           git clean -f -x -d
@@ -39,15 +40,18 @@ jobs:
           && sqlite3 collection.anki2 .dump
         env:
           LEETCODE_SESSION_ID: ${{ secrets.LEETCODE_SESSION_ID }}
+          LEETCODE_CSRF_TOKEN: ${{ secrets.LEETCODE_CSRF_TOKEN }}
       - name: Test build Anki Deck with Amazon list id
         run: python generate.py --stop 10 --list-id 7p5x763
         env:
           LEETCODE_SESSION_ID: ${{ secrets.LEETCODE_SESSION_ID }}
+          LEETCODE_CSRF_TOKEN: ${{ secrets.LEETCODE_CSRF_TOKEN }}
       - name: Build Anki Deck
         run: python generate.py
         if: github.ref == 'refs/heads/master'
         env:
           LEETCODE_SESSION_ID: ${{ secrets.LEETCODE_SESSION_ID }}
+          LEETCODE_CSRF_TOKEN: ${{ secrets.LEETCODE_CSRF_TOKEN }}
       - name: Create Release
         id: create_release
         uses: actions/create-release@v1

Diff for: README.md

@@ -27,43 +27,45 @@ I personally use it to track my grinding progress.
 
 ## How to run
 First download the source code
-```
+```sh
 git clone https://github.com/prius/leetcode-anki.git
 cd leetcode-anki
 ```
 
 After that initialize and activate python virtualenv somewhere
 
 Linux/MacOS
-```
+```sh
 virtualenv -p python leetcode-anki
 . leetcode-anki/bin/activate
 ```
 
 Windows
-```
+```sh
 python -m venv leetcode-anki
 .\leetcode-anki\Scripts\activate.bat
 ```
 
-Then initialize session id variable. You can get it directly from your browser (if you're using chrome, cookies can be found here chrome://settings/cookies/detail?site=leetcode.com)
+Then initialize necessary environment variables. You can get it directly from your browser cookies (`csrftoken` and `LEETCODE_SESSION`)
 
 Linux/Macos
-```
+```sh
+export LEETCODE_CSRF_TOKEN="xxx"
 export LEETCODE_SESSION_ID="yyy"
 ```
 
 Windows
-```
+```sh
+set LEETCODE_CSRF_TOKEN="xxx"
 set LEETCODE_SESSION_ID="yyy"
 ```
 
 And finally run for Linux/MacOS
-```
+```sh
 make generate
 ```
 Or for Windows
-```
+```sh
 pip install -r requirements.txt
 python generate.py
 ```

Diff for: leetcode_anki/helpers/leetcode.py

@@ -35,7 +35,7 @@ def _get_leetcode_api_client() -> leetcode.api.default_api.DefaultApi:
     configuration = leetcode.configuration.Configuration()
 
     session_id = os.environ["LEETCODE_SESSION_ID"]
-    csrf_token = leetcode.auth.get_csrf_cookie(session_id)
+    csrf_token = os.environ["LEETCODE_CSRF_TOKEN"]
 
     configuration.api_key["x-csrftoken"] = csrf_token
     configuration.api_key["csrftoken"] = csrf_token
@@ -166,7 +166,7 @@ def _get_problems_count(self) -> int:
                 skip=0,
                 filters=leetcode.models.graphql_query_problemset_question_list_variables_filter_input.GraphqlQueryProblemsetQuestionListVariablesFilterInput(
                     tags=[],
-                    list_id=self._list_id
+                    list_id=self._list_id,
                     # difficulty="MEDIUM",
                     # status="NOT_STARTED",
                     # list_id="7p5x763",  # Top Amazon Questions