forked from KayFaraday/pleroma-ebooks
102 lines
3.4 KiB
Python
Executable File
102 lines
3.4 KiB
Python
Executable File
#!/usr/bin/env python3
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# This Source Code Form is subject to the terms of the Mozilla Public
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# License, v. 2.0. If a copy of the MPL was not distributed with this
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# file, You can obtain one at http://mozilla.org/MPL/2.0/.
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import markovify
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from bs4 import BeautifulSoup
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from random import randint
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import re, multiprocessing, sqlite3, shutil, os, html
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def make_sentence(output, cfg):
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class nlt_fixed(markovify.NewlineText): # modified version of NewlineText that never rejects sentences
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def test_sentence_input(self, sentence):
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return True # all sentences are valid <3
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shutil.copyfile("toots.db", "toots-copy.db") # create a copy of the database because reply.py will be using the main one
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db = sqlite3.connect("toots-copy.db")
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db.text_factory = str
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c = db.cursor()
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if cfg['learn_from_cw']:
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ignored_cws_query_params = "(" + ",".join("?" * len(cfg["ignored_cws"])) + ")"
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toots = c.execute(f"SELECT content FROM `toots` WHERE cw NOT IN {ignored_cws_query_params} ORDER BY RANDOM() LIMIT 10000", cfg["ignored_cws"]).fetchall()
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else:
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toots = c.execute("SELECT content FROM `toots` WHERE cw IS NULL ORDER BY RANDOM() LIMIT 10000").fetchall()
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if len(toots) == 0:
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output.send("Database is empty! Try running main.py.")
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return
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nlt = markovify.NewlineText if cfg['overlap_ratio_enabled'] else nlt_fixed
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model = nlt(
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"\n".join([toot[0] for toot in toots])
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)
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db.close()
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os.remove("toots-copy.db")
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if cfg['limit_length']:
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sentence_len = randint(cfg['length_lower_limit'], cfg['length_upper_limit'])
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sentence = None
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tries = 0
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while sentence is None and tries < 10:
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sentence = model.make_short_sentence(
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max_chars=500,
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tries=10000,
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max_overlap_ratio=cfg['overlap_ratio'] if cfg['overlap_ratio_enabled'] else 0.7,
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max_words=sentence_len if cfg['limit_length'] else None
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)
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tries = tries + 1
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# optionally remove mentions
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if cfg['mention_handling'] == 1:
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sentence = re.sub(r"^\S*@\u200B\S*\s?", "", sentence)
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elif cfg['mention_handling'] == 0:
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sentence = re.sub(r"\S*@\u200B\S*\s?", "", sentence)
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output.send(sentence)
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def make_toot(cfg):
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toot = None
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pin, pout = multiprocessing.Pipe(False)
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p = multiprocessing.Process(target=make_sentence, args=[pout, cfg])
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p.start()
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p.join(5) # wait 5 seconds to get something
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if p.is_alive(): # if it's still trying to make a toot after 5 seconds
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p.terminate()
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p.join()
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else:
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toot = pin.recv()
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if toot is None:
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toot = "Toot generation failed! Contact Lynne (lynnesbian@fedi.lynnesbian.space) for assistance."
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return toot
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def extract_toot(toot):
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toot = html.unescape(toot) # convert HTML escape codes to text
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soup = BeautifulSoup(toot, "html.parser")
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for lb in soup.select("br"): # replace <br> with linebreak
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lb.name = "\n"
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for p in soup.select("p"): # ditto for <p>
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p.name = "\n"
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for ht in soup.select("a.hashtag"): # convert hashtags from links to text
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ht.unwrap()
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for link in soup.select("a"): # convert <a href='https://example.com>example.com</a> to just https://example.com
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if 'href' in link:
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# apparently not all a tags have a href, which is understandable if you're doing normal web stuff, but on a social media platform??
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link.replace_with(link["href"])
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text = soup.get_text()
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text = re.sub(r"https://([^/]+)/(@[^\s]+)", r"\2@\1", text) # put mastodon-style mentions back in
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text = re.sub(r"https://([^/]+)/users/([^\s/]+)", r"@\2@\1", text) # put pleroma-style mentions back in
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text = text.rstrip("\n") # remove trailing newline(s)
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return text
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