mstdn-ebooks/main.py
2019-08-16 02:02:06 +10:00

268 lines
8.8 KiB
Python
Executable file

#!/usr/bin/env python3
# toot downloader version two!!
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
from mastodon import Mastodon, MastodonUnauthorizedError
from os import path
from bs4 import BeautifulSoup
import os, sqlite3, signal, sys, json, re, shutil, argparse
import requests
import functions
parser = argparse.ArgumentParser(description='Log in and download posts.')
parser.add_argument('-c', '--cfg', dest='cfg', default='config.json', nargs='?',
help="Specify a custom location for config.json.")
args = parser.parse_args()
scopes = ["read:statuses", "read:accounts", "read:follows", "write:statuses", "read:notifications", "write:accounts"]
#cfg defaults
cfg = {
"site": "https://botsin.space",
"cw": None,
"instance_blacklist": ["bofa.lol", "witches.town", "knzk.me"], # rest in piece
"learn_from_cw": False,
"mention_handling": 1,
"max_thread_length": 15,
"strip_paired_punctuation": False
}
try:
cfg.update(json.load(open(args.cfg, 'r')))
except FileNotFoundError:
open(args.cfg, "w").write("{}")
print("Using {} as configuration file".format(args.cfg))
if "client" not in cfg:
print("No application info -- registering application with {}".format(cfg['site']))
client_id, client_secret = Mastodon.create_app("mstdn-ebooks",
api_base_url=cfg['site'],
scopes=scopes,
website="https://github.com/Lynnesbian/mstdn-ebooks")
cfg['client'] = {
"id": client_id,
"secret": client_secret
}
if "secret" not in cfg:
print("No user credentials -- logging in to {}".format(cfg['site']))
client = Mastodon(client_id = cfg['client']['id'],
client_secret = cfg['client']['secret'],
api_base_url=cfg['site'])
print("Open this URL and authenticate to give mstdn-ebooks access to your bot's account: {}".format(client.auth_request_url(scopes=scopes)))
cfg['secret'] = client.log_in(code=input("Secret: "), scopes=scopes)
json.dump(cfg, open(args.cfg, "w+"))
def extract_toot(toot):
toot = functions.extract_toot(toot)
toot = toot.replace("@", "@\u200B") #put a zws between @ and username to avoid mentioning
return(toot)
client = Mastodon(
client_id=cfg['client']['id'],
client_secret = cfg['client']['secret'],
access_token=cfg['secret'],
api_base_url=cfg['site'])
try:
me = client.account_verify_credentials()
except MastodonUnauthorizedError:
print("The provided access token in {} is invalid. Please delete {} and run main.py again.".format(args.cfg, args.cfg))
sys.exit(1)
following = client.account_following(me.id)
db = sqlite3.connect("toots.db")
db.text_factory=str
c = db.cursor()
c.execute("CREATE TABLE IF NOT EXISTS `toots` (sortid INTEGER UNIQUE PRIMARY KEY AUTOINCREMENT, id VARCHAR NOT NULL, cw INT NOT NULL DEFAULT 0, userid VARCHAR NOT NULL, uri VARCHAR NOT NULL, content VARCHAR NOT NULL)")
tableinfo = c.execute("PRAGMA table_info(`toots`)").fetchall()
found = False
columns = []
for entry in tableinfo:
if entry[1] == "sortid":
found = True
break
columns.append(entry[1])
if not found:
print("Migrating to new database format. Please wait...")
print("WARNING: If any of the accounts your bot is following are Pleroma users, please delete toots.db and run main.py again to create it anew.")
try:
c.execute("DROP TABLE `toots_temp`")
except:
pass
c.execute("CREATE TABLE `toots_temp` (sortid INTEGER UNIQUE PRIMARY KEY AUTOINCREMENT, id VARCHAR NOT NULL, cw INT NOT NULL DEFAULT 0, userid VARCHAR NOT NULL, uri VARCHAR NOT NULL, content VARCHAR NOT NULL)")
for f in following:
user_toots = c.execute("SELECT * FROM `toots` WHERE userid LIKE ? ORDER BY id", (f.id,)).fetchall()
if user_toots == None:
continue
if columns[-1] == "cw":
for toot in user_toots:
c.execute("INSERT INTO `toots_temp` (id, userid, uri, content, cw) VALUES (?, ?, ?, ?, ?)", toot)
else:
for toot in user_toots:
c.execute("INSERT INTO `toots_temp` (id, cw, userid, uri, content) VALUES (?, ?, ?, ?, ?)", toot)
c.execute("DROP TABLE `toots`")
c.execute("ALTER TABLE `toots_temp` RENAME TO `toots`")
db.commit()
def handleCtrlC(signal, frame):
print("\nPREMATURE EVACUATION - Saving chunks")
db.commit()
sys.exit(1)
signal.signal(signal.SIGINT, handleCtrlC)
patterns = {
"handle": re.compile(r"^.*@(.+)"),
"url": re.compile(r"https?:\/\/(.*)"),
"uri": re.compile(r'template="([^"]+)"'),
"pid": re.compile(r"[^\/]+$"),
}
def insert_toot(oii, acc, post, cursor): # extracted to prevent duplication
pid = patterns["pid"].search(oii['object']['id']).group(0)
cursor.execute("REPLACE INTO toots (id, cw, userid, uri, content) VALUES (?, ?, ?, ?, ?)", (
pid,
1 if (oii['object']['summary'] != None and oii['object']['summary'] != "") else 0,
acc.id,
oii['object']['id'],
post
))
for f in following:
last_toot = c.execute("SELECT id FROM `toots` WHERE userid LIKE ? ORDER BY sortid DESC LIMIT 1", (f.id,)).fetchone()
if last_toot != None:
last_toot = last_toot[0]
else:
last_toot = 0
print("Downloading posts for user @{}, starting from {}".format(f.acct, last_toot))
#find the user's activitypub outbox
print("WebFingering...")
instance = patterns["handle"].search(f.acct)
if instance == None:
instance = patterns["url"].search(cfg['site']).group(1)
else:
instance = instance.group(1)
if instance in cfg['instance_blacklist']:
print("skipping blacklisted instance: {}".format(instance))
continue
try:
# 1. download host-meta to find webfinger URL
r = requests.get("https://{}/.well-known/host-meta".format(instance), timeout=10)
# 2. use webfinger to find user's info page
uri = patterns["uri"].search(r.text).group(1)
uri = uri.format(uri = "{}@{}".format(f.username, instance))
r = requests.get(uri, headers={"Accept": "application/json"}, timeout=10)
j = r.json()
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:
print("Couldn't find a valid ActivityPub outbox URL.")
# 3. download first page of outbox
uri = "{}/outbox?page=true".format(uri)
r = requests.get(uri, timeout=15)
j = r.json()
except:
print("oopsy woopsy!! we made a fucky wucky!!!\n(we're probably rate limited, please hang up and try again)")
sys.exit(1)
pleroma = False
if 'next' not in j:
print("Using Pleroma compatibility mode")
pleroma = True
j = j['first']
else:
print("Using standard mode")
uri = "{}&min_id={}".format(uri, last_toot)
r = requests.get(uri)
j = r.json()
print("Downloading and saving posts", end='', flush=True)
done = False
try:
while not done and len(j['orderedItems']) > 0:
for oi in j['orderedItems']:
if oi['type'] != "Create":
continue #this isn't a toot/post/status/whatever, it's a boost or a follow or some other activitypub thing. ignore
# its a toost baby
content = oi['object']['content']
toot = extract_toot(content)
# print(toot)
try:
if pleroma:
if c.execute("SELECT COUNT(*) FROM toots WHERE uri LIKE ?", (oi['object']['id'],)).fetchone()[0] > 0:
#we've caught up to the notices we've already downloaded, so we can stop now
#you might be wondering, "lynne, what if the instance ratelimits you after 40 posts, and they've made 60 since main.py was last run? wouldn't the bot miss 20 posts and never be able to see them?" to which i reply, "i know but i don't know how to fix it"
done = True
if 'lang' in cfg:
try:
if oi['object']['contentMap'][cfg['lang']]: # filter for language
insert_toot(oi, f, toot, c)
except KeyError:
#JSON doesn't have contentMap, just insert the toot irregardlessly
insert_toot(oi, f, toot, c)
else:
insert_toot(oi, f, toot, c)
pass
except:
pass #ignore any toots that don't successfully go into the DB
# get the next/previous page
try:
if not pleroma:
r = requests.get(j['prev'], timeout=15)
else:
r = requests.get(j['next'], timeout=15)
except requests.Timeout:
print("HTTP timeout, site did not respond within 15 seconds")
except:
print("An error occurred while trying to obtain more posts.")
j = r.json()
print('.', end='', flush=True)
print(" Done!")
db.commit()
except requests.HTTPError as e:
if e.response.status_code == 429:
print("Rate limit exceeded. This means we're downloading too many posts in quick succession. Saving toots to database and moving to next followed account.")
db.commit()
else:
# TODO: remove duplicate code
print("Encountered an error! Saving posts to database and moving to next followed account.")
db.commit()
except:
print("Encountered an error! Saving posts to database and moving to next followed account.")
db.commit()
print("Done!")
db.commit()
db.execute("VACUUM") #compact db
db.commit()
db.close()