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3 changed files with 74 additions and 20 deletions

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.gitignore vendored Normal file
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*.conf
*.txt
log/
*.bak
bin/
lib/
*.cfg

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# DiscoRSS
![DiscoRSS Logo](https://frzn.dev/~amr/images/discorss.png)
## What is it?
DiscoRSS is a simple Python script to send RSS feeds to Discord webhooks. It was created because existing bots that did this set limits on the number of feeds, and self-hosting stuff is easier and better anyway. To get this working, you will require the following Python libraries:

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import requests
import feedparser
import hashlib
from pathlib import Path
import json
import datetime
import time
import os
import re
config_file_path = r"/etc/discorss.conf"
# config_file_path = r"discorss.conf"
# log_file_path = r"/var/log/discorss"
log_file_path = r"./log"
config_dir = os.environ.get('XDG_CONFIG_HOME')
if config_dir is None:
config_file_path = r"~/.config/discorss/discorss.conf"
config_dir = r"~/.config/discorss"
else:
config_file_path = config_dir + r"/discorss/discorss.conf"
log_file_path = r"/var/log/discorss"
# log_file_path = r"./log"
log_file_name = r"/app.log"
# Yes, I know you "can't parse HTML with regex", but
# just watch me.
html_filter = re.compile(r"\<\/?([A-Za-z \"\=])*\>")
success_codes = ["200", "201", "202", "203", "204", "205", "206"]
# This function gets and formats the brief excerpt that goes in the embed
# Different feeds put summaries in different fields, so we pick the best
# one and limit it to 150 characters.
# TODO: make the character limit smarter, as to split at a natural point
def get_description(feed):
try:
temporary_string = str(feed.entries[0]["summary_detail"]["value"])
temporary_string = html_filter.sub("", temporary_string)
desc = (
temporary_string[:150] if len(temporary_string) > 150 else temporary_string
temporary_string[:150]
if len(temporary_string) > 150
else temporary_string
)
except KeyError:
temporary_string = str(feed.entries[0]["description"])
temporary_string = html_filter.sub("", temporary_string)
desc = (
temporary_string[:150] if len(temporary_string) > 150 else temporary_string
temporary_string[:150]
if len(temporary_string) > 150
else temporary_string
)
return desc
@ -42,39 +61,59 @@ def get_description(feed):
def main():
os.environ["TZ"] = "America/Toronto"
time.tzset()
# Check for log and config files/paths, create empty directories if needed
try:
Path(log_file_path).mkdir(parents=True, exist_ok=True)
except FileExistsError:
print("This path already exists and is not a directory!")
# Load and read the config file
print("The logfile path {} already exists and is not a directory!".format(log_file_path))
if not Path(config_file_path).exists():
print("No config file! Snarf. Directories were created for you.")
print("No config file at {}! Snarf.\n{} was created for you.".format(config_file_path, config_dir))
Path(config_file_path).mkdir(parents=True, exist_ok=True)
return
with open(config_file_path, "r") as config_file:
app_config = json.load(config_file)
now = time.mktime(time.localtime())
last_check = app_config["lastupdate"]
for hook in app_config["feeds"]:
try:
last_check = app_config["lastupdate"]
except KeyError:
last_check = (
now - 21600
) # first run, no lastupdate, check up to 6 hours ago
for i, hook in enumerate(app_config["feeds"]):
# Get the feed
feed = feedparser.parse(hook["url"])
published_time = time.mktime(feed.entries[0]["published_parsed"])
published_time = published_time + hook["offset"]
print(feed.entries[0]["published"], published_time, now)
print("Parsing feed {}...".format(hook["name"]))
# Hash the title of the latest post and use that to determine if it's been posted
new_hash = hashlib.sha3_512(
bytes(feed.entries[0]["title"], "utf-8")
).hexdigest()
try:
if hook["lasthash"] != new_hash:
app_config["feeds"][i]["lasthash"] = new_hash
else:
continue
except KeyError:
app_config["feeds"][i]["lasthash"] = new_hash
# Generate the webhook
webhook = {
"embeds": [
{
"title": str(feed.entries[0]["title"]),
"url": str(feed.entries[0]["link"]),
"color": 5814783,
"provider": {
"color": 216128,
"footer": {
"name": "DiscoRSS",
"url": "https://git.frzn.dev/amr/discorss",
# "url": "https://git.frzn.dev/amr/discorss",
},
"author": {
"name": str(hook["name"]),
"url": str(hook["siteurl"]),
},
"author": {"name": str(hook["name"]), "url": str(hook["siteurl"])},
"fields": [
{
"name": str(feed.entries[0]["title"]),
"name": "Excerpt from post:",
"value": get_description(feed),
}
],
@ -87,11 +126,17 @@ def main():
"content-type": "application/json",
}
webhook_string = json.dumps(webhook)
# print(webhook_string)
if published_time > last_check and published_time < now:
if published_time > last_check:
r = requests.post(
hook["webhook"], data=webhook_string, headers=custom_header
)
if r.status_code not in success_codes:
print(
"Error {} while trying to post {}".format(
r.status_code, hook["webhook"]
)
)
app_config["lastupdate"] = now
with open(config_file_path, "w") as config_file:
json.dump(app_config, config_file, indent=4)