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FediBooks/app/pages/bot/accounts_add.py

90 lines
3.4 KiB
Python

from flask import session, render_template, request, redirect
import requests
from mastodon import Mastodon
def bot_accounts_add(mysql):
if request.method == 'POST':
if session['step'] == 1:
if request.form['account'] == session['bot']:
error = "Bots cannot learn from themselves."
return render_template("bot/accounts_add.html", error = error)
# look up user
handle_list = request.form['account'].split('@')
if len(handle_list) != 3:
# not formatted correctly
error = "Incorrectly formatted handle."
return render_template("bot/accounts_add.html", error = error)
username = handle_list[1]
instance = handle_list[2]
# gab check
try:
r = requests.get("https://{}/api/v1/instance".format(instance), timeout=10)
except requests.exceptions.ConnectionError:
error = "Couldn't connect to {}.".format(instance)
return render_template("bot/accounts_add.html", error = error)
except:
error = "An unknown error occurred."
return render_template("bot/accounts_add.html", error = error)
if r.status_code == 200:
j = r.json()
if 'contact_account' in j and 'is_pro' in j['contact_account']:
# gab instance
error = "Gab instances are not supported."
return render_template("bot/accounts_add.html", error = error)
# 1. download host-meta to find webfinger URL
r = requests.get("https://{}/.well-known/host-meta".format(instance), timeout=10)
if r.status_code != 200:
error = "Couldn't get host-meta."
return render_template("bot/accounts_add.html", error = error)
# 2. use webfinger to find user's info page
#TODO: use more reliable method
try:
uri = re.search(r'template="([^"]+)"', r.text).group(1)
uri = uri.format(uri = "{}@{}".format(username, instance))
except:
error = "Couldn't find WebFinger URL."
return render_template("bot/accounts_add.html", error = error)
r = requests.get(uri, headers={"Accept": "application/json"}, timeout=10)
try:
j = r.json()
except:
error = "Invalid WebFinger response."
return render_template("bot/accounts_add.html", error = error)
found = False
for link in j['links']:
if link['rel'] == 'self':
#this is a link formatted like "https://instan.ce/users/username", which is what we need
uri = link['href']
found = True
break
if not found:
error = "Couldn't find a valid ActivityPub outbox URL."
return render_template("bot/accounts_add.html", error = error)
# 3. format as outbox URL and check to make sure it works
outbox = "{}/outbox?page=true".format(uri)
r = requests.get(uri, headers={"Accept": "application/json"}, timeout=10)
if r.status_code == 200:
# success!!
c = mysql.connection.cursor()
c.execute("REPLACE INTO `fedi_accounts` (`handle`, `outbox`) VALUES (%s, %s)", (request.form['account'], outbox))
c.execute("INSERT INTO `bot_learned_accounts` (`bot_id`, `fedi_id`) VALUES (%s, %s)", (session['bot'], request.form['account']))
c.close()
mysql.connection.commit()
return redirect("/bot/accounts/{}".format(session['bot']), 303)
else:
error = "Couldn't access ActivityPub outbox. {} may require authenticated fetches, which FediBooks doesn't support yet.".format(instance)
return render_template("bot/accounts_add.html", error = error)
else:
# new account add request
session['step'] = 1
return render_template("bot/accounts_add.html", error = session.pop('error', None))