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zulip/zerver/data_import/gitter.py

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import logging
import os
import subprocess
from typing import Any, Dict, List, Set, Tuple
import dateutil.parser
import ujson
from django.conf import settings
from django.forms.models import model_to_dict
from django.utils.timezone import now as timezone_now
from zerver.data_import.import_util import (
ZerverFieldsT,
build_avatar,
build_defaultstream,
build_message,
build_realm,
build_recipient,
build_stream,
build_subscription,
build_usermessages,
build_zerver_realm,
create_converted_data_files,
make_subscriber_map,
process_avatars,
)
from zerver.lib.export import MESSAGE_BATCH_CHUNK_SIZE
from zerver.models import Recipient, UserProfile
# stubs
GitterDataT = List[Dict[str, Any]]
realm_id = 0
def gitter_workspace_to_realm(domain_name: str, gitter_data: GitterDataT,
realm_subdomain: str) -> Tuple[ZerverFieldsT,
List[ZerverFieldsT],
Dict[str, int],
Dict[str, int]]:
"""
Returns:
1. realm, Converted Realm data
2. avatars, which is list to map avatars to zulip avatar records.json
3. user_map, which is a dictionary to map from gitter user id to zulip user id
4. stream_map, which is a dictionary to map from gitter rooms to zulip stream id
"""
NOW = float(timezone_now().timestamp())
zerver_realm: List[ZerverFieldsT] = build_zerver_realm(realm_id, realm_subdomain, NOW, 'Gitter')
realm = build_realm(zerver_realm, realm_id, domain_name)
zerver_userprofile, avatars, user_map = build_userprofile(int(NOW), domain_name, gitter_data)
zerver_stream, zerver_defaultstream, stream_map = build_stream_map(int(NOW), gitter_data)
zerver_recipient, zerver_subscription = build_recipient_and_subscription(
zerver_userprofile, zerver_stream)
realm['zerver_userprofile'] = zerver_userprofile
realm['zerver_stream'] = zerver_stream
realm['zerver_defaultstream'] = zerver_defaultstream
realm['zerver_recipient'] = zerver_recipient
realm['zerver_subscription'] = zerver_subscription
return realm, avatars, user_map, stream_map
def build_userprofile(timestamp: Any, domain_name: str,
gitter_data: GitterDataT) -> Tuple[List[ZerverFieldsT],
List[ZerverFieldsT],
Dict[str, int]]:
"""
Returns:
1. zerver_userprofile, which is a list of user profile
2. avatar_list, which is list to map avatars to zulip avatars records.json
3. added_users, which is a dictionary to map from gitter user id to zulip id
"""
logging.info('######### IMPORTING USERS STARTED #########\n')
zerver_userprofile = []
avatar_list: List[ZerverFieldsT] = []
user_map: Dict[str, int] = {}
user_id = 0
for data in gitter_data:
if data['fromUser']['id'] not in user_map:
user_data = data['fromUser']
user_map[user_data['id']] = user_id
email = get_user_email(user_data, domain_name)
build_avatar(user_id, realm_id, email, user_data['avatarUrl'],
timestamp, avatar_list)
# Build userprofile object
userprofile = UserProfile(
full_name=user_data['displayName'],
short_name=user_data['username'],
id=user_id,
email=email,
delivery_email=email,
avatar_source='U',
pointer=-1,
date_joined=timestamp,
last_login=timestamp)
userprofile_dict = model_to_dict(userprofile)
# Set realm id separately as the corresponding realm is not yet a Realm model
# instance
userprofile_dict['realm'] = realm_id
zerver_userprofile.append(userprofile_dict)
user_id += 1
logging.info('######### IMPORTING USERS FINISHED #########\n')
return zerver_userprofile, avatar_list, user_map
def get_user_email(user_data: ZerverFieldsT, domain_name: str) -> str:
# TODO Get user email from github
email = ("{}@users.noreply.github.com".format(user_data['username']))
return email
def build_stream_map(timestamp: Any,
gitter_data: GitterDataT) -> Tuple[List[ZerverFieldsT],
List[ZerverFieldsT],
Dict[str, int]]:
"""
Returns:
1. stream, which is the list of streams
2. defaultstreams, which is the list of default streams
3. stream_map, which is a dictionary to map from gitter rooms to zulip stream id
"""
logging.info('######### IMPORTING STREAM STARTED #########\n')
stream_id = 0
stream: List[ZerverFieldsT] = []
# Default stream when no "room" field is present
stream.append(build_stream(timestamp, realm_id, 'from gitter',
"Imported from gitter", stream_id))
defaultstream = build_defaultstream(realm_id=realm_id, stream_id=stream_id,
defaultstream_id=0)
stream_id += 1
# Gathering streams from gitter_data
stream_map: Dict[str, int] = {}
for data in gitter_data:
if 'room' in data and data['room'] not in stream_map:
stream.append(build_stream(timestamp, realm_id, data['room'],
f'Gitter room {data["room"]}', stream_id))
stream_map[data['room']] = stream_id
stream_id += 1
logging.info('######### IMPORTING STREAMS FINISHED #########\n')
return stream, [defaultstream], stream_map
def build_recipient_and_subscription(
zerver_userprofile: List[ZerverFieldsT],
zerver_stream: List[ZerverFieldsT]) -> Tuple[List[ZerverFieldsT],
List[ZerverFieldsT]]:
"""
Assumes that there is at least one stream with 'stream_id' = 0,
and that this stream is the only defaultstream, with 'defaultstream_id' = 0
Returns:
1. zerver_recipient, which is a list of mapped recipient
2. zerver_subscription, which is a list of mapped subscription
"""
zerver_recipient = []
zerver_subscription = []
recipient_id = subscription_id = 0
# For streams
# Initial recipients correspond to intitial streams
# We enumerate all streams, and build a recipient for each
# Hence 'recipient_id'=n corresponds to 'stream_id'=n
for stream in zerver_stream:
zerver_recipient.append(build_recipient(recipient_id, recipient_id, Recipient.STREAM))
recipient_id += 1
# For users
for user in zerver_userprofile:
zerver_recipient.append(build_recipient(user['id'], recipient_id, Recipient.PERSONAL))
zerver_subscription.append(build_subscription(recipient_id, user['id'], subscription_id))
recipient_id += 1
subscription_id += 1
# As suggested in #14830, we subscribe every user to every stream.
# We rely on the above invariant: 'recipient_id'=n corresponds to 'stream_id'=n
#
# TODO: For multi-stream imports, subscribe users to streams
# based either on Gitter API data or who sent messages where.
for user in zerver_userprofile:
for stream in zerver_stream:
zerver_subscription.append(build_subscription(stream['id'], user['id'], subscription_id))
subscription_id += 1
return zerver_recipient, zerver_subscription
def convert_gitter_workspace_messages(gitter_data: GitterDataT, output_dir: str,
subscriber_map: Dict[int, Set[int]],
user_map: Dict[str, int],
stream_map: Dict[str, int],
user_short_name_to_full_name: Dict[str, str],
chunk_size: int=MESSAGE_BATCH_CHUNK_SIZE) -> None:
"""
Messages are stored in batches
"""
logging.info('######### IMPORTING MESSAGES STARTED #########\n')
message_id = 0
low_index = 0
upper_index = low_index + chunk_size
dump_file_id = 1
while True:
message_json = {}
zerver_message = []
zerver_usermessage: List[ZerverFieldsT] = []
message_data = gitter_data[low_index: upper_index]
if len(message_data) == 0:
break
for message in message_data:
message_time = dateutil.parser.parse(message['sent']).timestamp()
mentioned_user_ids = get_usermentions(message, user_map,
user_short_name_to_full_name)
rendered_content = None
topic_name = 'imported from gitter' + (f' room {message["room"]}' if 'room' in message else '')
user_id = user_map[message['fromUser']['id']]
recipient_id = stream_map[message['room']] if 'room' in message else 0
zulip_message = build_message(topic_name, float(message_time), message_id, message['text'],
rendered_content, user_id, recipient_id)
zerver_message.append(zulip_message)
build_usermessages(
zerver_usermessage=zerver_usermessage,
subscriber_map=subscriber_map,
recipient_id=recipient_id,
mentioned_user_ids=mentioned_user_ids,
message_id=message_id,
is_private=False,
)
message_id += 1
message_json['zerver_message'] = zerver_message
message_json['zerver_usermessage'] = zerver_usermessage
message_filename = os.path.join(output_dir, "messages-%06d.json" % (dump_file_id,))
logging.info("Writing Messages to %s\n", message_filename)
write_data_to_file(os.path.join(message_filename), message_json)
low_index = upper_index
upper_index = chunk_size + low_index
dump_file_id += 1
logging.info('######### IMPORTING MESSAGES FINISHED #########\n')
def get_usermentions(message: Dict[str, Any], user_map: Dict[str, int],
user_short_name_to_full_name: Dict[str, str]) -> List[int]:
mentioned_user_ids = []
if 'mentions' in message:
for mention in message['mentions']:
if mention.get('userId') in user_map:
gitter_mention = '@{}'.format(mention['screenName'])
if mention['screenName'] not in user_short_name_to_full_name:
logging.info("Mentioned user %s never sent any messages, so has no full name data",
mention['screenName'])
full_name = mention['screenName']
else:
full_name = user_short_name_to_full_name[mention['screenName']]
zulip_mention = (f'@**{full_name}**')
message['text'] = message['text'].replace(gitter_mention, zulip_mention)
mentioned_user_ids.append(user_map[mention['userId']])
return mentioned_user_ids
def do_convert_data(gitter_data_file: str, output_dir: str, threads: int=6) -> None:
# Subdomain is set by the user while running the import commands
realm_subdomain = ""
domain_name = settings.EXTERNAL_HOST
os.makedirs(output_dir, exist_ok=True)
# output directory should be empty initially
if os.listdir(output_dir):
raise Exception("Output directory should be empty!")
# Read data from the gitter file
with open(gitter_data_file) as fp:
gitter_data = ujson.load(fp)
realm, avatar_list, user_map, stream_map = gitter_workspace_to_realm(
domain_name, gitter_data, realm_subdomain)
subscriber_map = make_subscriber_map(
zerver_subscription=realm['zerver_subscription'],
)
# For user mentions
user_short_name_to_full_name = {}
for userprofile in realm['zerver_userprofile']:
user_short_name_to_full_name[userprofile['short_name']] = userprofile['full_name']
convert_gitter_workspace_messages(
gitter_data, output_dir, subscriber_map, user_map, stream_map,
user_short_name_to_full_name)
avatar_folder = os.path.join(output_dir, 'avatars')
avatar_realm_folder = os.path.join(avatar_folder, str(realm_id))
os.makedirs(avatar_realm_folder, exist_ok=True)
avatar_records = process_avatars(avatar_list, avatar_folder, realm_id, threads)
attachment: Dict[str, List[Any]] = {"zerver_attachment": []}
# IO realm.json
create_converted_data_files(realm, output_dir, '/realm.json')
# IO emoji records
create_converted_data_files([], output_dir, '/emoji/records.json')
# IO avatar records
create_converted_data_files(avatar_records, output_dir, '/avatars/records.json')
# IO uploads records
create_converted_data_files([], output_dir, '/uploads/records.json')
# IO attachments records
create_converted_data_files(attachment, output_dir, '/attachment.json')
subprocess.check_call(["tar", "-czf", output_dir + '.tar.gz', output_dir, '-P'])
logging.info('######### DATA CONVERSION FINISHED #########\n')
logging.info("Zulip data dump created at %s", output_dir)
def write_data_to_file(output_file: str, data: Any) -> None:
with open(output_file, "w") as f:
f.write(ujson.dumps(data, indent=4))
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