forked from PeterSurda/inoreader2readwise
Separate micro services
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parent
754cc950b9
commit
089583960b
GPG Key ID:
58029C48BB100574
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@ -0,0 +1,11 @@
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FROM python:3.8-slim-buster
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WORKDIR /app
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ADD . /app
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RUN pip install --no-cache-dir -r requirements.txt
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EXPOSE 5000
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CMD ["python", "main.py"]
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import os
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from flask import Flask, render_template, request, redirect, abort
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import requests
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def get_env_variable(var_name):
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value = os.environ.get(var_name)
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if not value:
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raise ValueError(f"Missing required environment variable: {var_name}")
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return value
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app = Flask(__name__)
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# Read environment variables outside the route function
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client_id = get_env_variable('CLIENT_ID')
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redirect_uri = get_env_variable('REDIRECT_URI')
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optional_scopes = get_env_variable('OPTIONAL_SCOPES')
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database_url = get_env_variable('DATABASE_URL')
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csrf_protection_string = None
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@app.route('/')
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def home():
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if is_logged_in():
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return render_template('success.html')
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# Generate a CSRF protection string
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global csrf_protection_string
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csrf_protection_string = os.urandom(16).hex()
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# Pass dynamic variables to the template
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return render_template('index.html', client_id=client_id, redirect_uri=redirect_uri,
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optional_scopes=optional_scopes, csrf_protection_string=csrf_protection_string)
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@app.route('/oauth-redirect')
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def oauth_redirect():
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auth_code = request.args.get('code')
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csrf_token = request.args.get('state')
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# Verify the CSRF protection string
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if csrf_token != csrf_protection_string:
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abort(400, 'Invalid CSRF token. Please try again.')
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# Exchange authorization code for access and refresh tokens
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response = requests.post(
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'https://www.inoreader.com/oauth2/token',
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headers={
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'Content-Type': 'application/x-www-form-urlencoded',
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'User-agent': 'your-user-agent'
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},
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data={
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'code': auth_code,
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'redirect_uri': get_env_variable('REDIRECT_URI'),
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'client_id': get_env_variable('CLIENT_ID'),
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'client_secret': get_env_variable('CLIENT_SECRET'),
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'scope': '',
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'grant_type': 'authorization_code'
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}
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)
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response.raise_for_status()
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tokens = response.json()
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# Save tokens for later use
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save_tokens(tokens['access_token'], tokens['refresh_token'], tokens['expires_in'])
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return redirect('/')
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def is_logged_in():
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response = requests.get(f'{database_url}/token/latest')
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response.raise_for_status()
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if response.status_code == 204:
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return False
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elif response.status_code == 200:
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resp_json = response.json()
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return resp_json['token']['expiration_seconds'] + resp_json['token']['timestamp'] > datetime.now().timestamp()
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return False
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def save_tokens(access_token, refresh_token, expiration_seconds):
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response = requests.post(
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f'{database_url}/token',
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headers={
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'Content-Type': 'application/json'
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},
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json={
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'access_token': access_token,
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'refresh_token': refresh_token,
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'expiration_seconds': expiration_seconds
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}
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)
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response.raise_for_status()
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if __name__ == '__main__':
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app.run(debug=True, port=5000)
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Flask==3.0.1
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requests==2.31.0
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Simple Frontend</title>
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</head>
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<body>
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<button onclick="redirectToOAuth()">Click Me</button>
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<script>
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function redirectToOAuth() {
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// Encode URL components using Jinja filters
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var encodedRedirectUri = encodeURIComponent('{{ redirect_uri }}');
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var encodedOptionalScopes = encodeURIComponent('{{ optional_scopes }}');
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// Construct the URL using Jinja variables
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var oauthUrl = `https://www.inoreader.com/oauth2/auth?client_id={{ client_id }}&redirect_uri=${encodedRedirectUri}&response_type=code&scope=${encodedOptionalScopes}&state={{ csrf_protection_string }}`;
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// Redirect to the constructed URL
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window.location.href = oauthUrl;
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}
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</script>
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</body>
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</html>
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Simple Frontend</title>
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</head>
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<body>
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<h1>Logged In!</h1>
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</body>
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</html>
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@ -0,0 +1,11 @@
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FROM python:3.8-slim-buster
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WORKDIR /app
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ADD . /app
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RUN pip install --no-cache-dir -r requirements.txt
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EXPOSE 5000
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CMD ["python", "main.py"]
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from flask import Flask, jsonify, request
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from flask_sqlalchemy import SQLAlchemy
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from datetime import datetime
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app = Flask(__name__)
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app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///tokens.db' # Use SQLite for simplicity
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app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
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db = SQLAlchemy(app)
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class Token(db.Model):
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id = db.Column(db.Integer, primary_key=True)
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access_token = db.Column(db.String(255), nullable=False)
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refresh_token = db.Column(db.String(255), nullable=False)
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expiration_seconds = db.Column(db.Integer, nullable=False)
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timestamp = db.Column(db.DateTime, default=datetime.utcnow)
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def __repr__(self):
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return f'<Token {self.id}>'
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# Initialize the database
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db.create_all()
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# API to create a new token entry
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@app.route('/token', methods=['POST'])
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def create_token():
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data = request.get_json()
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access_token = data.get('access_token')
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refresh_token = data.get('refresh_token')
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expiration_seconds = data.get('expiration_seconds')
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new_token = Token(access_token=access_token, refresh_token=refresh_token, expiration_seconds=expiration_seconds)
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db.session.add(new_token)
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db.session.commit()
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return ('', 204)
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# API to get the latest token entry
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@app.route('/token/latest', methods=['GET'])
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def get_latest_token():
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latest_token = Token.query.order_by(Token.timestamp.desc()).first()
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if latest_token:
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token_info = {
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'access_token': latest_token.access_token,
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'refresh_token': latest_token.refresh_token,
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'expiration_seconds': latest_token.expiration_seconds,
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'timestamp': latest_token.timestamp.isoformat()
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}
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return jsonify({'token': token_info}), 200
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else:
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return '', 204
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if __name__ == '__main__':
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app.run(host='0.0.0.0', port=5000, debug=True)
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Flask==3.0.1
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Flask-SQLAlchemy==3.1.1
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@ -6,6 +6,4 @@ ADD . /app
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RUN pip install --no-cache-dir -r requirements.txt
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EXPOSE 80
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CMD ["python", "main.py"]
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@ -6,6 +6,8 @@ import logging
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DATA_STORE_PATH = "/data/last_update_time.txt"
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DATABASE_URL = os.getenv("DATABASE_URL")
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logging.basicConfig(level=logging.INFO)
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class APIHandler:
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inoreader = APIHandler(
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"https://www.inoreader.com/reader/api/0/stream/contents",
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headers = {
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'Authorization': 'Bearer ' + os.getenv("INOREADER_ACCESS_TOKEN")
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'Authorization': 'Bearer ' + get_inoreader_access_token()
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}
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)
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}
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)
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def get_inoreader_access_token():
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response = requests.get(f'{DATABASE_URL}/token/latest')
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response.raise_for_status()
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if response.status_code == 204:
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# throw error - not logged in. Please log in first through the web app
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raise Exception("Not logged in. Please log in first through the web app")
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elif response.status_code == 200:
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resp_json = response.json()
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if resp_json['token']['expiration_seconds'] + resp_json['token']['timestamp'] > datetime.now().timestamp():
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return resp_json['token']['access_token']
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else:
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return refresh_inoreader_access_token(resp_json['token']['refresh_token'])
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access_token = get_token_from_database()
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if not access_token:
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access_token = refresh_inoreader_access_token()
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if not access_token:
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raise Exception("Unable to get access token. Try logging in again through the web app")
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return access_token
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def refresh_inoreader_access_token(refresh_token):
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response = requests.post(
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'https://www.inoreader.com/oauth2/token',
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headers={
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'Content-Type': 'application/x-www-form-urlencoded',
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},
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data={
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'refresh_token': refresh_token,
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'client_id': os.getenv("INOREADER_CLIENT_ID"),
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'client_secret': os.getenv("INOREADER_CLIENT_SECRET"),
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'grant_type': 'refresh_token'
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}
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)
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response.raise_for_status()
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tokens = response.json()
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# Save tokens for later use
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save_tokens(tokens['access_token'], tokens['refresh_token'], tokens['expires_in'])
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return tokens['access_token']
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def save_tokens(access_token, refresh_token, expiration_seconds):
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response = requests.post(
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f'{DATABASE_URL}/token',
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headers={
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'Content-Type': 'application/json'
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},
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json={
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'access_token': access_token,
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'refresh_token': refresh_token,
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'expiration_seconds': expiration_seconds
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}
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)
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response.raise_for_status()
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def main():
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while True:
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