Modernize Flask and add Patreon API key refresh

app.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 from fosspay.app import app
 from fosspay.config import _cfg, _cfgi
 

config.ini.example

@@ -49,5 +49,14 @@ goal=500
 # Register a client here: https://www.patreon.com/portal/registration/register-clients
 # And put in the "Creator's Access Token" here:
 patreon-access-token=
+# And the "Creator's Refresh Token" here:
+patreon-refresh-token=
+# Client ID
+patreon-client-id=
+# Client secret
+patreon-client-secret=
 # And the Patreon campaign you want to connect with:
 patreon-campaign=
+
+# Command to reload fosspay (send it a SIGHUP)
+reload-command=kill -HUP $(pgrep -xf '/usr/bin/python3.*app.py' | tail -n 1)

cronjob.py

@@ -6,7 +6,9 @@ from fosspay.email import send_thank_you, send_declined
 
 from datetime import datetime, timedelta
 
+import requests
 import stripe
+import subprocess
 
 stripe.api_key = _cfg("stripe-secret")
 
@@ -45,4 +47,30 @@ for donation in donations:
     else:
         print("Skipping {}".format(donation))
 
-print("Done. {} records processed.".format(len(donations)))
+print("{} records processed.".format(len(donations)))
+
+if _cfg("patreon-refresh-token"):
+    print("Updating Patreon API token")
+
+    r = requests.post('https://www.patreon.com/api/oauth2/token', params={
+        'grant_type': 'refresh_token',
+        'refresh_token': _cfg("patreon-refresh-token"),
+        'client_id': _cfg("patreon-client-id"),
+        'client_secret': _cfg("patreon-client-secret")
+    })
+    if r.status_code != 200:
+        print("Failed to update Patreon API token")
+        sys.exit(1)
+    resp = r.json()
+    with open("config.ini") as f:
+        config = f.read()
+    config = config.replace(_cfg("patreon-access-token"), resp["access_token"])
+    config = config.replace(_cfg("patreon-refresh-token"), resp["refresh_token"])
+    with open("config.ini", "w") as f:
+        f.write(config)
+    print("Refreshed Patreon API token")
+    reload_cmd = _cfg("reload-command")
+    if not reload_cmd:
+        print("Cannot reload application, add reload-command to config.ini")
+    else:
+        subprocess.run(reload_cmd, shell=True, check=True)

fosspay/app.py

@@ -1,5 +1,5 @@
 from flask import Flask, render_template, request, g, Response, redirect, url_for
-from flask.ext.login import LoginManager, current_user
+from flask_login import LoginManager, current_user
 from jinja2 import FileSystemLoader, ChoiceLoader
 
 import sys

fosspay/blueprints/html.py

@@ -1,5 +1,5 @@
 from flask import Blueprint, render_template, abort, request, redirect, session, url_for, send_file, Response
-from flask.ext.login import current_user, login_user, logout_user
+from flask_login import current_user, login_user, logout_user
 from datetime import datetime, timedelta
 from fosspay.objects import *
 from fosspay.database import db
@@ -40,12 +40,16 @@ def index():
     access_token = _cfg("patreon-access-token")
     campaign = _cfg("patreon-campaign")
     if access_token and campaign:
-        import patreon
-        client = patreon.API(access_token)
-        campaign = client.fetch_campaign()
-        attrs = campaign.json_data["data"][0]["attributes"]
-        patreon_count = attrs["patron_count"]
-        patreon_sum = attrs["pledge_sum"]
+        try:
+            import patreon
+            client = patreon.API(access_token)
+            campaign = client.fetch_campaign()
+            attrs = campaign.json_data["data"][0]["attributes"]
+            patreon_count = attrs["patron_count"]
+            patreon_sum = attrs["pledge_sum"]
+        except:
+            patreon_count = 0
+            patreon_sum = 0
     else:
         patreon_count = 0
         patreon_sum = 0

fosspay/common.py

@@ -1,5 +1,5 @@
 from flask import session, jsonify, redirect, request, Response, abort
-from flask.ext.login import current_user
+from flask_login import current_user
 from werkzeug.utils import secure_filename
 from functools import wraps
 from fosspay.objects import User

fosspay/config.py

@@ -1,4 +1,5 @@
 import logging
+import signal
 
 try:
     from configparser import ConfigParser
@@ -26,6 +27,7 @@ def load_config():
     global config
     config = ConfigParser()
     config.readfp(open('config.ini'))
+    signal.signal(signal.SIGHUP, lambda *args: load_config())
 
 load_config()