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export.py
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export.py
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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
import re
import sys
import json
import time
import queue
import random
import socket
import struct
import sqlite3
import logging
import argparse
import binascii
import functools
import collections
import tgcli
__version__ = '3.0'
re_msglist = re.compile(r'^\[.*\]$')
re_onemsg = re.compile(r'^\{.+\}$')
re_getmsg = re.compile(r'^\*\*\* [0-9.]+ id=\d+$')
logging.basicConfig(stream=sys.stdout, format='%(asctime)s [%(levelname)s] %(message)s', level=logging.INFO)
class LRUCache:
def __init__(self, maxlen):
self.capacity = maxlen
self.cache = collections.OrderedDict()
def __getitem__(self, key):
value = self.cache.pop(key)
self.cache[key] = value
return value
def get(self, key):
try:
value = self.cache.pop(key)
self.cache[key] = value
return value
except KeyError:
return None
def __setitem__(self, key, value):
try:
self.cache.pop(key)
except KeyError:
if len(self.cache) >= self.capacity:
self.cache.popitem(last=False)
self.cache[key] = value
def retry_or_log(attempts=2):
def decorator(func):
@functools.wraps(func)
def wrapped(*args, **kwargs):
for att in range(attempts):
try:
return func(*args, **kwargs)
except Exception as ex:
if att == attempts-1:
logging.exception('Wrapped function failed.')
return wrapped
return decorator
def uniq(seq, key=None): # Dave Kirby
# Order preserving
seen = set()
if key:
return [x for x in seq if key(x) not in seen and not seen.add(key(x))]
else:
return [x for x in seq if x not in seen and not seen.add(x)]
class tgl_peer_id_t(collections.namedtuple('tgl_peer_id_t', 'peer_type peer_id access_hash')):
'''
typedef struct {
int peer_type;
int peer_id;
long long access_hash;
} tgl_peer_id_t;
'''
TGL_PEER_USER = 1
TGL_PEER_CHAT = 2
TGL_PEER_GEO_CHAT = 3
TGL_PEER_ENCR_CHAT = 4
TGL_PEER_CHANNEL = 5
TGL_PEER_TEMP_ID = 100
TGL_PEER_RANDOM_ID = 101
TGL_PEER_UNKNOWN = 0
@classmethod
def loads(cls, s):
return cls._make(struct.unpack('<iiq', binascii.a2b_hex(s.lstrip('$'))))
def dumps(self):
return '$' + binascii.b2a_hex(struct.pack('<iiq', *self)).decode('ascii')
@classmethod
def from_peer(cls, peer):
pid = peer['id']
if isinstance(pid, str):
return cls.loads(pid)
elif peer['type'] == 'user':
return cls(cls.TGL_PEER_USER, pid, 0)
elif peer['type'] == 'chat':
return cls(cls.TGL_PEER_CHAT, pid, 0)
elif peer['type'] == 'encr_chat':
return cls(cls.TGL_PEER_ENCR_CHAT, pid, 0)
elif peer['type'] == 'channel':
return cls(cls.TGL_PEER_CHANNEL, pid, 0)
def to_id(self):
# We assume peer_type is unsigned int.
return self.peer_type<<32 | self.peer_id
class tgl_message_id_t(collections.namedtuple('tgl_message_id_t', 'peer_type peer_id id access_hash')):
'''
typedef struct tgl_message_id {
unsigned peer_type;
unsigned peer_id;
long long id;
long long access_hash;
} tgl_message_id_t;
The peer_type, peer_id and access_hash are the same as those of the chat.
'''
@classmethod
def loads(cls, s):
return cls._make(struct.unpack('<IIqq', binascii.a2b_hex(s)))
def dumps(self):
return binascii.b2a_hex(struct.pack('<IIqq', *self)).decode('ascii')
def getpeerid(obj, key):
if key in obj:
return tgl_peer_id_t.from_peer(obj[key]).to_id()
def getmsgid(obj, key):
if key in obj:
if isinstance(obj[key], int):
return obj[key]
else:
return tgl_message_id_t.loads(obj[key]).id
def print_id(obj):
try:
return '%s#id%d' % (obj['peer_type'], obj['peer_id'])
except KeyError:
return obj['print_name']
def init_db(filename):
global DB, CONN
DB = sqlite3.connect(filename)
CONN = DB.cursor()
CONN.execute('CREATE TABLE IF NOT EXISTS messages ('
'id INTEGER,' # can be not unique in channels
'src INTEGER,' # tgl_peer_id_t.to_id
'dest INTEGER,' # tgl_peer_id_t.to_id
'text TEXT,'
'media TEXT,'
'date INTEGER,'
'fwd_src INTEGER,' # tgl_peer_id_t.to_id
'fwd_date INTEGER,'
'reply_id INTEGER,'
'out INTEGER,'
'unread INTEGER,'
'service INTEGER,'
'action TEXT,'
'flags INTEGER,'
'PRIMARY KEY (id, dest)'
')')
CONN.execute('CREATE TABLE IF NOT EXISTS users ('
'id INTEGER PRIMARY KEY,' # peer_id
'access_hash INTEGER,'
'phone TEXT,'
'username TEXT,'
'first_name TEXT,'
'last_name TEXT,'
'flags INTEGER'
')')
CONN.execute('CREATE TABLE IF NOT EXISTS chats ('
'id INTEGER PRIMARY KEY,' # peer_id
'access_hash INTEGER,'
'title TEXT,'
'members_num INTEGER,'
'flags INTEGER'
')')
CONN.execute('CREATE TABLE IF NOT EXISTS channels ('
'id INTEGER PRIMARY KEY,' # peer_id
'access_hash INTEGER,'
'title TEXT,'
'participants_count INTEGER,'
'admins_count INTEGER,'
'kicked_count INTEGER,'
'flags INTEGER'
')')
CONN.execute('CREATE TABLE IF NOT EXISTS peerinfo ('
'id INTEGER PRIMARY KEY,' # tgl_peer_id_t.to_id
'type TEXT,'
'print_name TEXT,'
'finished INTEGER'
')')
CONN.execute('CREATE INDEX IF NOT EXISTS idx_messages ON '
'messages (dest)')
try:
CONN.execute('CREATE INDEX IF NOT EXISTS idx_users ON '
'users (id+4294967296, username)')
CONN.execute('CREATE INDEX IF NOT EXISTS idx_chats ON '
'chats (id+8589934592, title)')
CONN.execute('CREATE INDEX IF NOT EXISTS idx_channels ON '
'channels (id+21474836480, title)')
except sqlite3.OperationalError:
# < 3.9.0
pass
CONN.execute('''
CREATE VIEW IF NOT EXISTS v_messages AS
SELECT
m.id,
srcp.type src_type,
(CASE srcp.type WHEN 'user' THEN src-4294967296
WHEN 'chat' THEN src-8589934592 ELSE src-21474836480 END) src_id,
srcp.print_name src_name,
dstp.type dest_type,
(CASE dstp.type WHEN 'user' THEN dest-4294967296
WHEN 'chat' THEN dest-8589934592 ELSE dest-21474836480 END) dest_id,
dstp.print_name dest_name,
text, media, date,
fwdp.type fwd_src_type,
(CASE fwdp.type WHEN 'user' THEN fwd_src-4294967296
WHEN 'chat' THEN fwd_src-8589934592
ELSE fwd_src-21474836480 END) fwd_src_id,
fwdp.print_name fwd_src_name,
fwd_date, reply_id, out, unread, service, action, flags
FROM messages m
LEFT JOIN peerinfo srcp ON src=srcp.id
LEFT JOIN peerinfo dstp ON dest=dstp.id
LEFT JOIN peerinfo fwdp ON fwd_src=fwdp.id
''')
def update_peer(peer):
global PEER_CACHE
pst = tgl_peer_id_t.from_peer(peer)
pid = pst.to_id()
res = PEER_CACHE.get(pid)
if res:
return peer
if 'peer_type' in peer:
peer_type = peer['peer_type']
else:
peer_type = peer['type']
if 'peer_id' in peer:
peer_id = peer['peer_id']
else:
peer_id = peer['id']
if peer_type == 'user':
CONN.execute('REPLACE INTO users VALUES (?,?,?,?,?,?,?)', (peer_id, pst.access_hash, peer.get('phone'), peer.get('username'), peer.get('first_name'), peer.get('last_name'), peer.get('flags')))
elif peer_type == 'chat':
CONN.execute('REPLACE INTO chats VALUES (?,?,?,?,?)', (peer_id, pst.access_hash, peer.get('title'), peer.get('members_num'), peer.get('flags')))
elif peer_type == 'channel':
CONN.execute('REPLACE INTO channels VALUES (?,?,?,?,?,?,?)', (peer_id, pst.access_hash, peer.get('title'), peer.get('participants_count'), peer.get('admins_count'), peer.get('kicked_count'), peer.get('flags')))
# not support encr_chat
if CONN.execute('SELECT print_name FROM peerinfo WHERE id = ?', (pid,)).fetchone():
CONN.execute('UPDATE peerinfo SET print_name = ? WHERE id = ?', (peer.get('print_name'), pid))
else:
CONN.execute('INSERT INTO peerinfo VALUES (?,?,?,?)', (pid, peer_type, peer.get('print_name'), 0))
PEER_CACHE[pid] = peer
return peer
def is_finished(peer):
res = CONN.execute('SELECT finished FROM peerinfo WHERE id = ?', (tgl_peer_id_t.from_peer(peer).to_id(),)).fetchone()
return res and res[0]
def set_finished(peer, pos):
CONN.execute('UPDATE peerinfo SET finished = ? WHERE id = ?', (pos, tgl_peer_id_t.from_peer(peer).to_id()))
def reset_finished():
CONN.execute('UPDATE peerinfo SET finished = 0')
def log_msg(msg):
if 'from' in msg:
update_peer(msg['from'])
if 'to' in msg:
update_peer(msg['to'])
if 'fwd_from' in msg:
update_peer(msg['fwd_from'])
ret = not CONN.execute('SELECT 1 FROM messages WHERE id = ? AND dest = ?', (msg['id'], getpeerid(msg, 'to'))).fetchone()
# there can be messages like {"event": "message", "id": 561865}
# empty messages can be written, and overwritten
# json-tg.c:424 if (!(M->flags & TGLMF_CREATED)) { return res; }
if ret or 'flags' in msg:
CONN.execute('REPLACE INTO messages VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)', (getmsgid(msg, 'id'), getpeerid(msg, 'from'), getpeerid(msg, 'to'), msg.get('text'), json.dumps(msg['media']) if 'media' in msg else None, msg.get('date'), getpeerid(msg, 'fwd_from'), msg.get('fwd_date'), getmsgid(msg, 'reply_id'), msg.get('out'), msg.get('unread'), msg.get('service'), json.dumps(msg['action']) if 'action' in msg else None, msg.get('flags')))
return ret
def process(obj):
if isinstance(obj, list):
if not obj:
return (False, 0)
hit = 0
for msg in obj:
hit += log_msg(msg)
return (True, hit)
elif isinstance(obj, dict):
msg = obj
if msg.get('event') in ('message', 'service', 'read'):
return (True, log_msg(msg))
elif msg.get('event') == 'online-status':
update_peer(msg['user'])
elif 'peer' in msg:
update_peer(msg['peer'])
elif msg.get('result') == 'FAIL':
if 'can not parse' in msg.get('error', ''):
TGCLI.cmd_dialog_list()
#raise ValueError(msg.get('error'))
return (False, 0)
return (None, None)
# ignore non-json lines
elif obj == '':
raise ValueError('empty line received')
return (None, None)
def purge_queue():
while 1:
try:
process(MSG_Q.get_nowait())
except queue.Empty:
break
def on_start():
logging.info('Telegram-cli started.')
time.sleep(2)
TGCLI.cmd_dialog_list()
logging.info('Telegram-cli is ready.')
def logging_fmt(msg):
if msg.get('event') == 'message':
dst = msg['to']['print_name'] if 'to' in msg else '<Unknown>'
src = msg['from']['print_name'] if 'from' in msg else '<Unknown>'
return ' '.join(filter(None, (dst, src, '>>>', msg.get('text', ''), str(msg.get('media', '')))))
elif msg.get('event') == 'service':
dst = msg['to']['print_name'] if 'to' in msg else '<Unknown>'
src = msg['from']['print_name'] if 'from' in msg else '<Unknown>'
return ' '.join(filter(None, (dst, src, '>>>', str(msg.get('action', '')))))
else:
return repr(msg)[:100]
def logging_status(pos, end=False, seg=1000, length=None):
if pos % seg:
sys.stdout.write('.')
elif pos:
if length:
sys.stdout.write('%.2f%%' % (pos * 100 / length))
else:
sys.stdout.write(str(pos))
if end:
if pos and pos % seg:
if length:
sys.stdout.write('%.2f%%\n' % (pos * 100 / length))
else:
sys.stdout.write('%d\n' % pos)
else:
sys.stdout.write('\n')
sys.stdout.flush()
def export_for(item, pos=0, force=False):
logging.info('Exporting messages for %s from %d' % (item['print_name'], pos))
try:
# Get the first 100
if not pos:
update_peer(item)
msglist = TGCLI.cmd_history(print_id(item), 100)
res = process(msglist)
logging_status(pos)
pos = 100
else:
res = (True, 0)
# Get the recently updated messages until overlapped
while res[0] is True and not res[1]:
msglist = TGCLI.cmd_history(print_id(item), 100, pos)
res = process(msglist)
logging_status(pos)
pos += 100
# If force, then continue
if not force:
pos = max(pos, is_finished(item))
# Else, get messages from the offset of last time
# Until no message is returned (may be not true)
while res[0] is True:
msglist = TGCLI.cmd_history(print_id(item), 100, pos)
res = process(msglist)
logging_status(pos)
pos += 100
except Exception:
logging_status(pos, True)
if pos > is_finished(item):
set_finished(item, pos)
return pos
logging_status(pos, True)
set_finished(item, pos)
def find_holes(minv, maxv, s):
for n in range(minv, maxv + 1):
if n not in s:
yield n
def export_holes():
'''
Try to get remaining messages by using message id.
'''
# First we get messages that belong to ourselves,
# i.e. not channel messages or encr-chat
# 17179869184 = TGL_PEER_ENCR_CHAT 4<<32
got = set(i[0] for i in CONN.execute('SELECT id FROM messages WHERE dest < 17179869184') if isinstance(i[0], int))
# it doesn't verify peer_type, peer_id, access_hash
if got:
holes = [tgl_message_id_t(1, 0, n, 0) for n in find_holes(1, max(got), got)]
# Then we get channel (supergroup) messages.
if TG_TEST:
channels = [tgl_peer_id_t(tgl_peer_id_t.TGL_PEER_CHANNEL, *i) for i in
CONN.execute('SELECT id, access_hash FROM channels')]
for channel in channels:
got = set(i[0] for i in CONN.execute('SELECT id FROM messages WHERE dest = ?', (channel.to_id(),)) if isinstance(i[0], int))
if got:
holes.extend(tgl_message_id_t(channel.peer_type, channel.peer_id, n, channel.access_hash) for n in find_holes(1, max(got), got))
length = len(holes)
logging.info('Getting the remaining %d messages...' % length)
# we need some uncertainty to work around the uncertainty of telegram-cli
random.shuffle(holes)
# list of mids (may be str or int, depending on TG_TEST)
failed = []
for k, msg in enumerate(holes, 1):
if TG_TEST:
mid = msg.dumps()
else:
mid = msg.id
try:
res = process(TGCLI.send_command('get_message %s' % mid))
if not res[0]:
logging.warning('%r may not exist [%.2f%%]', msg[:3], (k * 100 / length))
elif k % 10 == 0:
logging_status(k, False, 100, length)
except tgcli.TelegramCliExited:
# interface.c:4295: print_message: Assertion `M' failed.
logging.warning('%r may not exist [%.2f%%]', msg[:3], (k * 100 / length))
except Exception:
failed.append(mid)
logging.exception('Failed to get message ID %s' % mid)
logging_status(k, True, 100, length)
purge_queue()
while failed:
length = len(failed)
logging.info('Retrying the remaining %d messages...' % length)
newlist = []
# see above
random.shuffle(failed)
for k, mid in enumerate(failed, 1):
try:
res = process(TGCLI.send_command('get_message %s' % mid))
except Exception:
# such an old bug (`newlist` here was `failed`)
newlist.append(mid)
if k % 10 == 0:
logging_status(k, False, 100, length)
logging_status(k, True, 100, length)
failed = newlist
purge_queue()
def export_text(peer=None, force=False):
#if force:
#reset_finished()
logging.info('Getting contacts...')
update_peer(TGCLI.cmd_get_self())
items = TGCLI.cmd_contact_list()
peer_obj = None
if peer:
peer_match = re.match('^(\w+)#id(\d+)$', peer)
for item in items:
update_peer(item)
purge_queue()
logging.info('Getting dialogs...')
dlist = items = lastitems = TGCLI.cmd_dialog_list(100)
dcount = 100
while items:
items = TGCLI.cmd_dialog_list(100, dcount)
if frozenset(d['id'] for d in items) == frozenset(d['id'] for d in lastitems):
break
dlist.extend(items)
dcount += 100
for item in dlist:
update_peer(item)
if peer and peer_obj is None:
if not peer_match:
if peer in item.get('print_name', ''):
peer_obj = item
elif ((item.get('peer_type') or item.get('type')) == peer_match.group(1)
and str(item.get('peer_id') or item.get('id')) == peer_match.group(2)):
peer_obj = item
if peer_obj:
logging.info('Peer: %r' % peer_obj)
dlist = [peer_obj]
elif peer:
logging.info('Peer not found: %s' % peer)
return
logging.info('Exporting messages...')
failed = []
# we need some uncertainty to work around the uncertainty of telegram-cli
random.shuffle(dlist)
for item in dlist:
res = export_for(item, 0, force)
if res is not None:
failed.append((item, res))
logging.warning('Failed to get messages for %s from %d' % (item['print_name'], res))
purge_queue()
DB.commit()
while failed:
newlist = []
for item, pos in failed:
res = export_for(item, pos, force)
if res is not None:
newlist.append((item, res))
logging.warning('Failed to get messages for %s from %d' % (item['print_name'], res))
purge_queue()
failed = newlist
DB.commit()
logging.info('Export to database completed.')
DB = None
CONN = None
PEER_CACHE = LRUCache(10)
MSG_Q = queue.Queue()
TGCLI = None
DLDIR = '.'
TG_TEST = True
def main(argv):
global TGCLI, DLDIR, TG_TEST
parser = argparse.ArgumentParser(description="Export Telegram messages.")
parser.add_argument("-o", "--output", help="output path", default="export")
parser.add_argument("-d", "--db", help="database path", default="tg-export3.db")
parser.add_argument("-f", "--force", help="force download all messages", action='store_true')
parser.add_argument("-p", "--peer", help="only download messages for this peer (format: channel#id1001234567, or use partial name/title as shown in tgcli)")
parser.add_argument("-B", "--batch-only", help="fetch messages in batch only, don't try to get more missing messages", action='store_true')
parser.add_argument("-t", "--timeout", help="tg-cli command timeout", type=int, default=30)
parser.add_argument("-l", "--logging", help="logging mode (keep running)", action='store_true')
parser.add_argument("-L", "--keep-logging", help="first export, then keep logging", action='store_true')
parser.add_argument("-e", "--tgbin", help="telegram-cli binary path", default="bin/telegram-cli")
parser.add_argument("-v", "--verbose", help="print debug messages", action='store_true')
args = parser.parse_args(argv)
if args.verbose:
logging.getLogger().setLevel(logging.DEBUG)
tgcli.logger.setLevel(logging.DEBUG)
DLDIR = args.output
init_db(args.db)
TGCLI = tgcli.TelegramCliInterface(args.tgbin, extra_args=('-W', '-E'), run=False, timeout=args.timeout)
TGCLI.on_json = MSG_Q.put
TGCLI.on_info = lambda s: tgcli.logger.info(s) if not re_getmsg.match(s) else None
#TGCLI.on_text = MSG_Q.put
#TGCLI.on_start = on_start
TGCLI.run()
TGCLI.ready.wait()
time.sleep(1)
# the 'test' branch of tg has channel support
TG_TEST = 'channel' in TGCLI.cmd_help()
try:
if not args.logging:
export_text(args.peer, args.force)
if not args.batch_only:
export_holes()
if args.logging or args.keep_logging:
while TGCLI.ready.is_set():
d = MSG_Q.get()
logging.info(logging_fmt(d))
process(d)
finally:
TGCLI.close()
purge_queue()
DB.commit()
if __name__ == '__main__':
sys.exit(main(sys.argv[1:]))