relay_status/relaystatus.py

import requests
import os
import datetime
import json
import jsondiff as jd
import smtplib
from jsondiff import diff

old_file = "onionoo_details"

url = "https://onionoo.torproject.org/details"
r = requests.get(url)
relays = json.loads(r.content)["relays"]

old_text = open(old_file, "r").read()
old_text = json.loads(old_text)["relays"]

diff1 = diff(old_text, relays, syntax='symmetric')

status = """From: relay status <relaystatus@encryptionin.space>
To: relaystatus@lists.encryptionin.space
Subject: Relay Status """ + datetime.datetime.now(datetime.utc).strftime('%Y-%m-%d %H') + """\n\n"""

for new_relay in diff1[jd.insert]:
    exit = "no"
    if new_relay[1]["exit_policy"][0] != "reject *:*":
        exit = "yes"
    status = status + "New relay: \"" + new_relay[1]["nickname"], "\", fingerpint: " + new_relay[1]["fingerprint"] + ", potential exit: " + exit + ", effective family size: " + str(len(new_relay[1]["effective_family"])) + "\n"

for updated_relay in diff1:
    if updated_relay != jd.insert and updated_relay != jd.delete:
        if "flags" in diff1[updated_relay]:
            if "Exit" in diff1[updated_relay]["flags"][jd.insert]:
                relay = old_text[updated_relay]
                new_flags = ""
                for flag in diff1[updated_relay]["flags"][jd.insert]:
                    new_flags = new_flags+flag[1]+","
                status = status + "\"" + relay["nickname"] + "\" (" + relay["fingerprint"] +  ") got new flag(s): \"" + new_flags + "\"\n"

with open(old_file, "w") as output:
    output.write(r.text)

try:
    smtp = smptlib.SMTP('localhost')
    smtp.sendmail('relaystatus@encryptionin.space', ['relaystatus@lists.encryptionin.space'], status)
except SMTPException:
    print("couldn't send")