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FediBooks/app/pages/bot/create.py

139 lines
5.1 KiB
Python

from flask import request, session, render_template, redirect, url_for
import requests
from mastodon import Mastodon
import re
def bot_create(mysql, cfg, scopes, scopes_pleroma):
if request.method == 'POST':
if session['step'] == 1:
# strip leading https://, if provided
session['instance'] = re.match(r"^(?:https?:\/\/)?(.*)", request.form['instance']).group(1)
# check for mastodon/pleroma
try:
r = requests.get("https://{}/api/v1/instance".format(session['instance']), timeout=10)
except requests.ConnectionError:
session['error'] = "Couldn't connect to https://{}.".format(session['instance'])
return render_template("bot/create.html", error = session.pop('error', None))
except:
session['error'] = "An unknown error occurred while trying to load https://{}".format(session['instance'])
return render_template("bot/create.html", error = session.pop('error', None))
if r.status_code == 200:
j = r.json()
if "Pleroma" in j['version']:
session['instance_type'] = "Pleroma"
session['step'] += 1
else:
if 'contact_account' in j and 'is_pro' in j['contact_account']:
# gab instance
session['error'] = "Gab instances are not supported."
else:
session['instance_type'] = "Mastodon"
session['step'] += 1
else:
# not a masto/pleroma instance
# misskey is currently unsupported
# all other instance types are also unsupported
# return an error message
#TODO: misskey
session['error'] = "Unsupported instance type. Misskey support is planned."
elif session['step'] == 2:
# nothing needs to be done here, this step just informs the user that their instance type is supported
session['step'] += 1
elif session['step'] == 3:
# authenticate with the given instance and obtain credentials
if session['instance_type'] in ['Mastodon', 'Pleroma']:
redirect_uri = '{}/do/authenticate_bot'.format(cfg['base_uri'])
session['client_id'], session['client_secret'] = Mastodon.create_app(
"FediBooks",
api_base_url="https://{}".format(session['instance']),
scopes=scopes if session['instance_type'] == 'Mastodon' else scopes_pleroma,
redirect_uris=[redirect_uri],
website=cfg['base_uri']
)
client = Mastodon(
client_id=session['client_id'],
client_secret=session['client_secret'],
api_base_url="https://{}".format(session['instance'])
)
url = client.auth_request_url(
client_id=session['client_id'],
redirect_uris=redirect_uri,
scopes=scopes if session['instance_type'] == 'Mastodon' else scopes_pleroma
)
return redirect(url, code=303)
elif session['instance_type'] == 'Misskey':
# todo
pass
else:
# the user clicked next on step 2 while having an unsupported instance type
# take them back home
del session['instance']
del session['instance_type']
session['step'] = 1
return redirect(url_for("home"), 303)
else:
if 'step' in session and session['step'] == 4:
try:
# test authentication
client = Mastodon(client_id=session['client_id'], client_secret=session['client_secret'], api_base_url=session['instance'])
session['secret'] = client.log_in(
code = session['code'],
scopes=scopes if session['instance_type'] == 'Mastodon' else scopes_pleroma,
redirect_uri='{}/do/authenticate_bot'.format(cfg['base_uri'])
)
username = client.account_verify_credentials()['username']
handle = "@{}@{}".format(username, session['instance'])
except:
# authentication error occurred
error = "Authentication failed."
session['step'] = 3
return render_template("bot/create.html", error = error)
c = mysql.connection.cursor()
c.execute("SELECT COUNT(*) FROM bots WHERE handle = %s", (handle,))
count = c.fetchone()
if count != None and count[0] == 1:
session['error'] = "{} is currently in use by another FediBooks bot.".format(handle)
session['step'] = 1
return redirect(url_for("render_bot_create"), 303)
# authentication success!!
c.execute("INSERT INTO `credentials` (client_id, client_secret, secret) VALUES (%s, %s, %s)", (session['client_id'], session['client_secret'], session['secret']))
credentials_id = c.lastrowid
mysql.connection.commit()
# get webpush url
privated, publicd = client.push_subscription_generate_keys()
private = privated['privkey']
public = publicd['pubkey']
secret = privated['auth']
client.push_subscription_set("{}/push/{}".format(cfg['base_uri'], handle), publicd, mention_events = True)
c.execute("INSERT INTO `bots` (handle, user_id, credentials_id, push_public_key, push_private_key, push_secret, instance_type) VALUES (%s, %s, %s, %s, %s, %s, %s)", (handle, session['user_id'], credentials_id, public, private, secret, session['instance_type']))
mysql.connection.commit()
c.close()
# clean up unneeded variables
del session['code']
del session['instance']
del session['instance_type']
del session['client_id']
del session['client_secret']
else:
# user is starting a new bot create request
session['step'] = 1
return render_template("bot/create.html", error = session.pop('error', None))