reddit-mastodon-crossposter/script.py

"""Main script to toot a new post"""

import praw, wget
from dotenv import load_dotenv
from mastodon import Mastodon
from os import getenv, remove
from os.path import getsize

# load .env
load_dotenv()

# initialize reddit
reddit = praw.Reddit(
    client_id = getenv("REDDIT_CLIENT_ID"),
    client_secret = getenv("REDDIT_CLIENT_SECRET"),
    redirect_uri = "http://localhost:8080",         # does not matter what is here
    user_agent = getenv("REDDIT_USER_AGENT")
)

# initialize mastodon
mastodon = Mastodon(
    access_token = getenv("MASTODON_USER_SECRET"),
    api_base_url = getenv("MASTODON_URL")
)

# get recent posts to check for duplicates
last_posts = mastodon.account_statuses(getenv("MASTODON_USER_ID"), limit=15)

for submission in reddit.subreddit(str(getenv("REDDIT_SUBREDDIT"))).top(time_filter="day", limit=10):
    # skip post if it is a stickied post
    if (submission.stickied):
        continue
    
    # check if the post has been posted before
    already_posted = False
    for posted_submission in last_posts:
        if submission.permalink in posted_submission["content"]:
            already_posted = True
            break
    if already_posted:
        continue
    
    # check if text only
    if submission.is_self:
        status_text = submission.title + "\n\ngeposted von u/" + submission.author.name + "\n" + submission.permalink + "\n\n" + submission.selftext
        mastodon.status_post(status_text, visibility="unlisted")
    # check if reddit video
    elif "v.redd.it" in submission.url:
        url = submission.media["reddit_video"]["fallback_url"]
        url = url.split("?")[0]
        filename = wget.download(url)
        print()
        
        # check if video file is small enough for the server (10MB)
        if getsize(filename) < 10*1000000:
            media = mastodon.media_post(filename)
            status_text = submission.title + "\n\ngeposted von u/" + submission.author.name + "\nhttps://reddit.com" + submission.permalink
            mastodon.status_post(status_text, media_ids=media["id"], visibility="unlisted")
        else:
            status_text = submission.title + "\n\nGeposteter Videolink: " + url + "\n\ngeposted von u/" + submission.author.name + "\n" + submission.permalink + "\n\n" + submission.selftext
            mastodon.status_post(status_text, visibility="unlisted")
        remove(filename)
    else:
        filename = wget.download(submission.url)
        print()
        media = mastodon.media_post(filename)
        status_text = submission.title + "\n\ngeposted von u/" + submission.author.name + "\nhttps://reddit.com" + submission.permalink
        mastodon.status_post(status_text, media_ids=media["id"], visibility="unlisted")
        remove(filename)
    break