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3 changed files with 106 additions and 177 deletions
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@ -1,34 +0,0 @@
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# .editorconfig
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# EditorConfig settings for this code base.
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# See documentation at <URL:http://editorconfig.org/>.
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# Is this the top-most EditorConfig config file in the code base?
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root = true
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# Match all file names, unless more specific match later.
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[*]
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# Text encoding name.
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charset = utf-8
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# Remove trailing whitespace on lines?
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trim_trailing_whitespace = true
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# End-of-line style (“lf”, “cr”, “crlf”).
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end_of_line = lf
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# Ensure file ends with a line break?
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insert_final_newline = true
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# Character to use for indentation (“tab“ for U+0009, “space“ for U+0020).
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indent_style = space
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# Number of columns for each indentation level.
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indent_size = 4
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# Local variables:
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# coding: utf-8
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# mode: conf
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# End:
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# vim: fileencoding=utf-8 filetype=dosini :
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@ -1,85 +1,51 @@
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#!/usr/bin/env python3
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import os, sys, logging, struct, psycopg2, bcrypt, random, atexit, time
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import atexit
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import logging
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import struct
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import sys
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import time
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import bcrypt
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import psycopg2
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# Database connection details. The credentials here need access to the
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# Mastodon database, which "ejabberd" is unlikely to have on your system
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# by default. You shoud grant SELECT privileges to ejabberd on the
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# "accounts" and "users" tables, to play it safe, or include the
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# Mastodon DB user credentials here (don't).
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# Database connection details. The credentials here need access to the Mastodon database, which "ejabberd" is unlikely
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# to have on your system by default. You shoud grant SELECT privileges to ejabberd on the "accounts" and "users" tables,
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# to play it safe, or include the Mastodon DB user credentials here (don't).
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db_host="localhost"
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db_port=5432
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db_user="ejabberd"
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db_pass=""
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db_name="mastodon"
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# This is the query that pulls the password hash for the given user.
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# Mastodon doesn't store the domain for local accounts in the database,
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# so we ignore the host component and try to match username where the
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# domain is NULL.
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db_query_getpass = """
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SELECT users.encrypted_password AS password
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FROM accounts
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INNER JOIN users
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ON accounts.id = users.account_id
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WHERE
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lower(accounts.username) = %(user)s
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AND accounts.domain IS NULL
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"""
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# This is the query that pulls the password hash for the given user. Mastodon doesn't store the domain for local accounts in
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# the database, so we ignore the host component and try to match username where the domain is NULL.
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db_query_getpass="select users.encrypted_password as password from accounts inner join users on accounts.id=users.account_id where lower(accounts.username) = %(user)s and accounts.domain is null"
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########################################################################
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#Setup
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########################################################################
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sys.stderr = open('/var/log/ejabberd/extauth_err.log', 'a')
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logging.basicConfig(
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level=logging.INFO,
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logging.basicConfig(level=logging.INFO,
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format='%(asctime)s %(levelname)s %(message)s',
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filename='/var/log/ejabberd/extauth.log',
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filemode='a',
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)
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filemode='a')
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try:
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# Connect to the DB, set autocommit and readonly otherwise
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# postgresql seems to have a tendency to keep things "idle in
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# transaction" and table locks eventually grind Mastodon to a halt.
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# We don't make any changes anyway.
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database = psycopg2.connect(
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host=db_host,
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user=db_user,
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password=db_pass,
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database=db_name,
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port=db_port,
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)
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# Connect to the DB, set autocommit and readonly otherwise postgresql seems to have a
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# tendency to keep things "idle in transaction" and table locks eventually grind
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# Mastodon to a halt. We don't make any changes anyway.
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database=psycopg2.connect(host = db_host, user = db_user, password = db_pass, database = db_name, port = db_port)
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database.set_session(readonly=True, autocommit=True)
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logging.debug(database.get_dsn_parameters())
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except Exception:
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except:
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logging.error("Unable to initialize database, check settings!")
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time.sleep(10)
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sys.exit(1)
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@atexit.register
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def close_db():
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cursor.close()
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database.close()
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logging.info('auth-mastodon script started, waiting for ejabberd requests')
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class EjabberdInputError(Exception):
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def __init__(self, value):
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self.value = value
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def __str__(self):
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return repr(self.value)
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@ -93,7 +59,7 @@ def ejabberd_in():
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input_length = sys.stdin.buffer.read(2)
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if len(input_length) != 2:
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if len(input_length) is not 2:
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logging.debug("ejabberd sent us wrong things!")
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raise EjabberdInputError('Wrong input from ejabberd!')
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@ -113,9 +79,7 @@ def ejabberd_out(bool):
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token = genanswer(bool)
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logging.debug(
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"sent bytes: %#x %#x %#x %#x"
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% (token[0], token[1], token[2], token[3]))
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logging.debug("sent bytes: %#x %#x %#x %#x" % (token[0], token[1], token[2], token[3]))
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sys.stdout.buffer.write(token)
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sys.stdout.buffer.flush()
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@ -130,23 +94,22 @@ def genanswer(bool):
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def get_password(user, host):
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# Right now we ignore the host component, as Mastodon doesn't store
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# it for local accounts. It may be required one day, so the code to
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# handle passing it to the query is left in for now.
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# Right now we ignore the host component, as Mastodon doesn't store it for local accounts.
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# It may be required one day, so the code to handle passing it to the query is left in for now.
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cursor = database.cursor()
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cursor.execute(db_query_getpass, {"user": user.lower(), "host": host})
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data = cursor.fetchone()
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cursor.close()
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return data[0] if data is not None else None
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return data[0] if data != None else None
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def isuser(user, host):
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return get_password(user, host) is not None
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return get_password(user, host) != None
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def auth(user, host, password):
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db_password = get_password(user, host)
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if db_password is None:
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if db_password == None:
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logging.debug("Wrong username: %s@%s" % (user, host))
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return False
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else:
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@ -171,15 +134,15 @@ while True:
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ejab_request = ejabberd_in().split(':', 3)
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except EOFError:
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break
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except Exception:
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except Exception as e:
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logging.exception("Exception occured while reading stdin")
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raise
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op_result = False
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try:
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# Only 'auth' and 'isuser' implemented, placeholders left to
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# maybe expose other functions later but for now let's not even
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# think about modifying the Mastodon DB
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# Only 'auth' and 'isuser' implemented, placeholders left to maybe
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# expose other functions later but for now let's not even think about
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# modifying the Mastodon DB
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if ejab_request[0] == "auth":
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op_result = auth(ejab_request[1], ejab_request[2], ejab_request[3])
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elif ejab_request[0] == "isuser":
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