zulip/zerver/data_import/import_util.py

828 lines
26 KiB
Python

import logging
import os
import random
import shutil
from collections import defaultdict
from collections.abc import Callable, Iterable, Iterator, Mapping
from collections.abc import Set as AbstractSet
from concurrent.futures import ProcessPoolExecutor, as_completed
from typing import Any, Protocol, TypeAlias, TypeVar
import orjson
import requests
from django.forms.models import model_to_dict
from django.utils.timezone import now as timezone_now
from zerver.data_import.sequencer import NEXT_ID
from zerver.lib.avatar_hash import user_avatar_base_path_from_ids
from zerver.lib.mime_types import guess_extension
from zerver.lib.partial import partial
from zerver.lib.stream_color import STREAM_ASSIGNMENT_COLORS as STREAM_COLORS
from zerver.lib.thumbnail import THUMBNAIL_ACCEPT_IMAGE_TYPES, BadImageError
from zerver.lib.upload.base import INLINE_MIME_TYPES
from zerver.models import (
Attachment,
DirectMessageGroup,
Message,
Realm,
RealmEmoji,
Recipient,
Stream,
Subscription,
UserProfile,
)
from zproject.backends import all_default_backend_names
# stubs
ZerverFieldsT: TypeAlias = dict[str, Any]
class SubscriberHandler:
def __init__(self) -> None:
self.stream_info: dict[int, set[int]] = {}
self.direct_message_group_info: dict[int, set[int]] = {}
def set_info(
self,
users: set[int],
stream_id: int | None = None,
direct_message_group_id: int | None = None,
) -> None:
if stream_id is not None:
self.stream_info[stream_id] = users
elif direct_message_group_id is not None:
self.direct_message_group_info[direct_message_group_id] = users
else:
raise AssertionError("stream_id or direct_message_group_id is required")
def get_users(
self, stream_id: int | None = None, direct_message_group_id: int | None = None
) -> set[int]:
if stream_id is not None:
return self.stream_info[stream_id]
elif direct_message_group_id is not None:
return self.direct_message_group_info[direct_message_group_id]
else:
raise AssertionError("stream_id or direct_message_group_id is required")
def build_zerver_realm(
realm_id: int, realm_subdomain: str, time: float, other_product: str
) -> list[ZerverFieldsT]:
realm = Realm(
id=realm_id,
name=realm_subdomain,
string_id=realm_subdomain,
description=f"Organization imported from {other_product}!",
)
realm_dict = model_to_dict(realm)
realm_dict["date_created"] = time
# These fields are supposed to be generated upon import.
del realm_dict["uuid"]
del realm_dict["uuid_owner_secret"]
return [realm_dict]
def build_user_profile(
avatar_source: str,
date_joined: Any,
delivery_email: str,
email: str,
full_name: str,
id: int,
is_active: bool,
role: int,
is_mirror_dummy: bool,
realm_id: int,
short_name: str,
timezone: str,
is_bot: bool = False,
bot_type: int | None = None,
) -> ZerverFieldsT:
obj = UserProfile(
avatar_source=avatar_source,
date_joined=date_joined,
delivery_email=delivery_email,
email=email,
full_name=full_name,
id=id,
is_mirror_dummy=is_mirror_dummy,
is_active=is_active,
role=role,
realm_id=realm_id,
timezone=timezone,
is_bot=is_bot,
bot_type=bot_type,
)
dct = model_to_dict(obj)
"""
Even though short_name is no longer in the Zulip
UserProfile, it's helpful to have it in our import
dictionaries for legacy reasons.
"""
dct["short_name"] = short_name
return dct
def build_avatar(
zulip_user_id: int,
realm_id: int,
email: str,
avatar_url: str,
timestamp: Any,
avatar_list: list[ZerverFieldsT],
) -> None:
avatar = dict(
path=avatar_url, # Save original avatar URL here, which is downloaded later
realm_id=realm_id,
content_type=None,
avatar_version=1,
user_profile_id=zulip_user_id,
last_modified=timestamp,
user_profile_email=email,
s3_path="",
size="",
)
avatar_list.append(avatar)
def make_subscriber_map(zerver_subscription: list[ZerverFieldsT]) -> dict[int, set[int]]:
"""
This can be convenient for building up UserMessage
rows.
"""
subscriber_map: dict[int, set[int]] = {}
for sub in zerver_subscription:
user_id = sub["user_profile"]
recipient_id = sub["recipient"]
if recipient_id not in subscriber_map:
subscriber_map[recipient_id] = set()
subscriber_map[recipient_id].add(user_id)
return subscriber_map
def make_user_messages(
zerver_message: list[ZerverFieldsT],
subscriber_map: dict[int, set[int]],
is_pm_data: bool,
mention_map: dict[int, set[int]],
wildcard_mention_map: Mapping[int, bool] = {},
) -> list[ZerverFieldsT]:
zerver_usermessage = []
for message in zerver_message:
message_id = message["id"]
recipient_id = message["recipient"]
sender_id = message["sender"]
mention_user_ids = mention_map[message_id]
wildcard_mention = wildcard_mention_map.get(message_id, False)
subscriber_ids = subscriber_map.get(recipient_id, set())
user_ids = subscriber_ids | {sender_id}
for user_id in user_ids:
is_mentioned = user_id in mention_user_ids
user_message = build_user_message(
user_id=user_id,
message_id=message_id,
is_private=is_pm_data,
is_mentioned=is_mentioned,
wildcard_mention=wildcard_mention,
)
zerver_usermessage.append(user_message)
return zerver_usermessage
def build_subscription(recipient_id: int, user_id: int, subscription_id: int) -> ZerverFieldsT:
subscription = Subscription(color=random.choice(STREAM_COLORS), id=subscription_id)
subscription_dict = model_to_dict(subscription, exclude=["user_profile", "recipient_id"])
subscription_dict["user_profile"] = user_id
subscription_dict["recipient"] = recipient_id
return subscription_dict
class GetUsers(Protocol):
def __call__(self, stream_id: int = ..., direct_message_group_id: int = ...) -> set[int]: ...
def build_stream_subscriptions(
get_users: GetUsers,
zerver_recipient: list[ZerverFieldsT],
zerver_stream: list[ZerverFieldsT],
) -> list[ZerverFieldsT]:
subscriptions: list[ZerverFieldsT] = []
stream_ids = {stream["id"] for stream in zerver_stream}
recipient_map = {
recipient["id"]: recipient["type_id"] # recipient_id -> stream_id
for recipient in zerver_recipient
if recipient["type"] == Recipient.STREAM and recipient["type_id"] in stream_ids
}
for recipient_id, stream_id in recipient_map.items():
user_ids = get_users(stream_id=stream_id)
for user_id in user_ids:
subscription = build_subscription(
recipient_id=recipient_id,
user_id=user_id,
subscription_id=NEXT_ID("subscription"),
)
subscriptions.append(subscription)
return subscriptions
def build_direct_message_group_subscriptions(
get_users: GetUsers,
zerver_recipient: list[ZerverFieldsT],
zerver_direct_message_group: list[ZerverFieldsT],
) -> list[ZerverFieldsT]:
subscriptions: list[ZerverFieldsT] = []
direct_message_group_ids = {
direct_message_group["id"] for direct_message_group in zerver_direct_message_group
}
recipient_map = {
recipient["id"]: recipient["type_id"] # recipient_id -> stream_id
for recipient in zerver_recipient
if recipient["type"] == Recipient.DIRECT_MESSAGE_GROUP
and recipient["type_id"] in direct_message_group_ids
}
for recipient_id, direct_message_group_id in recipient_map.items():
user_ids = get_users(direct_message_group_id=direct_message_group_id)
for user_id in user_ids:
subscription = build_subscription(
recipient_id=recipient_id,
user_id=user_id,
subscription_id=NEXT_ID("subscription"),
)
subscriptions.append(subscription)
return subscriptions
def build_personal_subscriptions(zerver_recipient: list[ZerverFieldsT]) -> list[ZerverFieldsT]:
subscriptions: list[ZerverFieldsT] = []
personal_recipients = [
recipient for recipient in zerver_recipient if recipient["type"] == Recipient.PERSONAL
]
for recipient in personal_recipients:
recipient_id = recipient["id"]
user_id = recipient["type_id"]
subscription = build_subscription(
recipient_id=recipient_id,
user_id=user_id,
subscription_id=NEXT_ID("subscription"),
)
subscriptions.append(subscription)
return subscriptions
def build_recipient(type_id: int, recipient_id: int, type: int) -> ZerverFieldsT:
recipient = Recipient(
type_id=type_id, # stream id
id=recipient_id,
type=type,
)
recipient_dict = model_to_dict(recipient)
return recipient_dict
def build_recipients(
zerver_userprofile: Iterable[ZerverFieldsT],
zerver_stream: Iterable[ZerverFieldsT],
zerver_direct_message_group: Iterable[ZerverFieldsT] = [],
) -> list[ZerverFieldsT]:
"""
This function was only used HipChat import, this function may be
required for future conversions. The Slack conversions do it more
tightly integrated with creating other objects.
"""
recipients = []
for user in zerver_userprofile:
type_id = user["id"]
type = Recipient.PERSONAL
recipient = Recipient(
type_id=type_id,
id=NEXT_ID("recipient"),
type=type,
)
recipient_dict = model_to_dict(recipient)
recipients.append(recipient_dict)
for stream in zerver_stream:
type_id = stream["id"]
type = Recipient.STREAM
recipient = Recipient(
type_id=type_id,
id=NEXT_ID("recipient"),
type=type,
)
recipient_dict = model_to_dict(recipient)
recipients.append(recipient_dict)
for direct_message_group in zerver_direct_message_group:
type_id = direct_message_group["id"]
type = Recipient.DIRECT_MESSAGE_GROUP
recipient = Recipient(
type_id=type_id,
id=NEXT_ID("recipient"),
type=type,
)
recipient_dict = model_to_dict(recipient)
recipients.append(recipient_dict)
return recipients
def build_realm(
zerver_realm: list[ZerverFieldsT], realm_id: int, domain_name: str
) -> ZerverFieldsT:
realm = dict(
zerver_client=[
{"name": "populate_db", "id": 1},
{"name": "website", "id": 2},
{"name": "API", "id": 3},
],
zerver_customprofilefield=[],
zerver_customprofilefieldvalue=[],
zerver_userpresence=[], # shows last logged in data, which is not available
zerver_userprofile_mirrordummy=[],
zerver_realmdomain=[
{"realm": realm_id, "allow_subdomains": False, "domain": domain_name, "id": realm_id}
],
zerver_useractivity=[],
zerver_realm=zerver_realm,
zerver_huddle=[],
zerver_userprofile_crossrealm=[],
zerver_useractivityinterval=[],
zerver_reaction=[],
zerver_realmemoji=[],
zerver_realmfilter=[],
zerver_realmplayground=[],
zerver_realmauthenticationmethod=[
{"realm": realm_id, "name": name, "id": i}
for i, name in enumerate(all_default_backend_names(), start=1)
],
)
return realm
def build_usermessages(
zerver_usermessage: list[ZerverFieldsT],
subscriber_map: dict[int, set[int]],
recipient_id: int,
mentioned_user_ids: list[int],
message_id: int,
is_private: bool,
long_term_idle: AbstractSet[int] = set(),
) -> tuple[int, int]:
user_ids = subscriber_map.get(recipient_id, set())
user_messages_created = 0
user_messages_skipped = 0
if user_ids:
for user_id in sorted(user_ids):
is_mentioned = user_id in mentioned_user_ids
if not is_mentioned and not is_private and user_id in long_term_idle:
# these users are long-term idle
user_messages_skipped += 1
continue
user_messages_created += 1
usermessage = build_user_message(
user_id=user_id,
message_id=message_id,
is_private=is_private,
is_mentioned=is_mentioned,
)
zerver_usermessage.append(usermessage)
return (user_messages_created, user_messages_skipped)
def build_user_message(
user_id: int,
message_id: int,
is_private: bool,
is_mentioned: bool,
wildcard_mention: bool = False,
) -> ZerverFieldsT:
flags_mask = 1 # For read
if is_mentioned:
flags_mask += 8 # For mentioned
if wildcard_mention:
flags_mask += 16
if is_private:
flags_mask += 2048 # For is_private
id = NEXT_ID("user_message")
usermessage = dict(
id=id,
user_profile=user_id,
message=message_id,
flags_mask=flags_mask,
)
return usermessage
def build_defaultstream(realm_id: int, stream_id: int, defaultstream_id: int) -> ZerverFieldsT:
defaultstream = dict(stream=stream_id, realm=realm_id, id=defaultstream_id)
return defaultstream
def build_stream(
date_created: Any,
realm_id: int,
name: str,
description: str,
stream_id: int,
deactivated: bool = False,
invite_only: bool = False,
stream_post_policy: int = 1,
) -> ZerverFieldsT:
# Other applications don't have the distinction of "private stream with public history"
# vs "private stream with hidden history" - and we've traditionally imported private "streams"
# of other products as private streams with hidden history.
# So we can set the history_public_to_subscribers value based on the invite_only flag.
history_public_to_subscribers = not invite_only
stream = Stream(
name=name,
deactivated=deactivated,
description=description.replace("\n", " "),
# We don't set rendered_description here; it'll be added on import
date_created=date_created,
invite_only=invite_only,
id=stream_id,
stream_post_policy=stream_post_policy,
history_public_to_subscribers=history_public_to_subscribers,
)
stream_dict = model_to_dict(stream, exclude=["realm"])
stream_dict["realm"] = realm_id
return stream_dict
def build_direct_message_group(direct_message_group_id: int, group_size: int) -> ZerverFieldsT:
direct_message_group = DirectMessageGroup(
id=direct_message_group_id,
group_size=group_size,
)
return model_to_dict(direct_message_group)
def build_message(
*,
topic_name: str,
date_sent: float,
message_id: int,
content: str,
rendered_content: str | None,
user_id: int,
recipient_id: int,
realm_id: int,
has_image: bool = False,
has_link: bool = False,
has_attachment: bool = True,
) -> ZerverFieldsT:
zulip_message = Message(
rendered_content_version=1, # this is Zulip specific
id=message_id,
content=content,
rendered_content=rendered_content,
has_image=has_image,
has_attachment=has_attachment,
has_link=has_link,
)
zulip_message.set_topic_name(topic_name)
zulip_message_dict = model_to_dict(
zulip_message, exclude=["recipient", "sender", "sending_client"]
)
zulip_message_dict["sender"] = user_id
zulip_message_dict["sending_client"] = 1
zulip_message_dict["recipient"] = recipient_id
zulip_message_dict["date_sent"] = date_sent
return zulip_message_dict
def build_attachment(
realm_id: int,
message_ids: set[int],
user_id: int,
fileinfo: ZerverFieldsT,
s3_path: str,
zerver_attachment: list[ZerverFieldsT],
) -> None:
"""
This function should be passed a 'fileinfo' dictionary, which contains
information about 'size', 'created' (created time) and ['name'] (filename).
"""
attachment_id = NEXT_ID("attachment")
attachment = Attachment(
id=attachment_id,
size=fileinfo["size"],
create_time=fileinfo["created"],
is_realm_public=True,
path_id=s3_path,
file_name=fileinfo["name"],
)
attachment_dict = model_to_dict(attachment, exclude=["owner", "messages", "realm"])
attachment_dict["owner"] = user_id
attachment_dict["messages"] = list(message_ids)
attachment_dict["realm"] = realm_id
zerver_attachment.append(attachment_dict)
def get_avatar(avatar_dir: str, size_url_suffix: str, avatar_upload_item: list[str]) -> None:
avatar_url = avatar_upload_item[0]
image_path = os.path.join(avatar_dir, avatar_upload_item[1])
original_image_path = os.path.join(avatar_dir, avatar_upload_item[2])
response = requests.get(avatar_url + size_url_suffix, stream=True)
with open(image_path, "wb") as image_file:
shutil.copyfileobj(response.raw, image_file)
shutil.copy(image_path, original_image_path)
def process_avatars(
avatar_list: list[ZerverFieldsT],
avatar_dir: str,
realm_id: int,
threads: int,
size_url_suffix: str = "",
) -> list[ZerverFieldsT]:
"""
This function gets the avatar of the user and saves it in the
user's avatar directory with both the extensions '.png' and '.original'
Required parameters:
1. avatar_list: List of avatars to be mapped in avatars records.json file
2. avatar_dir: Folder where the downloaded avatars are saved
3. realm_id: Realm ID.
We use this for Slack conversions, where avatars need to be
downloaded.
"""
logging.info("######### GETTING AVATARS #########\n")
logging.info("DOWNLOADING AVATARS .......\n")
avatar_original_list = []
avatar_upload_list = []
for avatar in avatar_list:
avatar_hash = user_avatar_base_path_from_ids(
avatar["user_profile_id"], avatar["avatar_version"], realm_id
)
avatar_url = avatar["path"]
avatar_original = dict(avatar)
image_path = f"{avatar_hash}.png"
original_image_path = f"{avatar_hash}.original"
avatar_upload_list.append([avatar_url, image_path, original_image_path])
# We don't add the size field here in avatar's records.json,
# since the metadata is not needed on the import end, and we
# don't have it until we've downloaded the files anyway.
avatar["path"] = image_path
avatar["s3_path"] = image_path
avatar["content_type"] = "image/png"
avatar_original["path"] = original_image_path
avatar_original["s3_path"] = original_image_path
avatar_original["content_type"] = "image/png"
avatar_original_list.append(avatar_original)
# Run downloads in parallel
run_parallel_wrapper(
partial(get_avatar, avatar_dir, size_url_suffix), avatar_upload_list, threads=threads
)
logging.info("######### GETTING AVATARS FINISHED #########\n")
return avatar_list + avatar_original_list
ListJobData = TypeVar("ListJobData")
def wrapping_function(f: Callable[[ListJobData], None], item: ListJobData) -> None:
try:
f(item)
except Exception:
logging.exception("Error processing item: %s", item, stack_info=True)
def run_parallel_wrapper(
f: Callable[[ListJobData], None], full_items: list[ListJobData], threads: int = 6
) -> None:
logging.info("Distributing %s items across %s threads", len(full_items), threads)
with ProcessPoolExecutor(max_workers=threads) as executor:
for count, future in enumerate(
as_completed(executor.submit(wrapping_function, f, item) for item in full_items), 1
):
future.result()
if count % 1000 == 0:
logging.info("Finished %s items", count)
def get_uploads(upload_dir: str, upload: list[str]) -> None:
upload_url = upload[0]
upload_path = upload[1]
upload_path = os.path.join(upload_dir, upload_path)
response = requests.get(upload_url, stream=True)
os.makedirs(os.path.dirname(upload_path), exist_ok=True)
with open(upload_path, "wb") as upload_file:
shutil.copyfileobj(response.raw, upload_file)
def process_uploads(
upload_list: list[ZerverFieldsT], upload_dir: str, threads: int
) -> list[ZerverFieldsT]:
"""
This function downloads the uploads and saves it in the realm's upload directory.
Required parameters:
1. upload_list: List of uploads to be mapped in uploads records.json file
2. upload_dir: Folder where the downloaded uploads are saved
"""
logging.info("######### GETTING ATTACHMENTS #########\n")
logging.info("DOWNLOADING ATTACHMENTS .......\n")
upload_url_list = []
for upload in upload_list:
upload_url = upload["path"]
upload_s3_path = upload["s3_path"]
upload_url_list.append([upload_url, upload_s3_path])
upload["path"] = upload_s3_path
# Run downloads in parallel
run_parallel_wrapper(partial(get_uploads, upload_dir), upload_url_list, threads=threads)
logging.info("######### GETTING ATTACHMENTS FINISHED #########\n")
return upload_list
def build_realm_emoji(realm_id: int, name: str, id: int, file_name: str) -> ZerverFieldsT:
return model_to_dict(
RealmEmoji(
realm_id=realm_id,
name=name,
id=id,
file_name=file_name,
),
)
def get_emojis(emoji_dir: str, emoji_url: str, emoji_path: str) -> str | None:
upload_emoji_path = os.path.join(emoji_dir, emoji_path)
response = requests.get(emoji_url, stream=True)
os.makedirs(os.path.dirname(upload_emoji_path), exist_ok=True)
with open(upload_emoji_path, "wb") as emoji_file:
shutil.copyfileobj(response.raw, emoji_file)
return response.headers.get("Content-Type")
def process_emojis(
zerver_realmemoji: list[ZerverFieldsT],
emoji_dir: str,
emoji_url_map: ZerverFieldsT,
threads: int,
) -> list[ZerverFieldsT]:
"""
This function downloads the custom emojis and saves in the output emoji folder.
Required parameters:
1. zerver_realmemoji: List of all RealmEmoji objects to be imported
2. emoji_dir: Folder where the downloaded emojis are saved
3. emoji_url_map: Maps emoji name to its url
"""
emoji_records = []
logging.info("######### GETTING EMOJIS #########\n")
logging.info("DOWNLOADING EMOJIS .......\n")
for emoji in zerver_realmemoji:
emoji_url = emoji_url_map[emoji["name"]]
emoji_path = RealmEmoji.PATH_ID_TEMPLATE.format(
realm_id=emoji["realm"], emoji_file_name=emoji["name"]
)
emoji_record = dict(emoji)
emoji_record["path"] = emoji_path
emoji_record["s3_path"] = emoji_path
emoji_record["realm_id"] = emoji_record["realm"]
emoji_record.pop("realm")
emoji_records.append(emoji_record)
# Directly download the emoji and patch the file_name with the correct extension
# based on the content-type returned by the server. This is needed because Slack
# sometimes returns an emoji url with .png extension despite the file being a gif.
content_type = get_emojis(emoji_dir, emoji_url, emoji_path)
if content_type is None:
logging.warning(
"Emoji %s has an unspecified content type. Using the original file extension.",
emoji["name"],
)
continue
if (
content_type not in THUMBNAIL_ACCEPT_IMAGE_TYPES
or content_type not in INLINE_MIME_TYPES
):
raise BadImageError(
f"Emoji {emoji['name']} is not an image file. Content type: {content_type}"
)
file_extension = guess_extension(content_type, strict=False)
assert file_extension is not None
old_file_name = emoji_record["file_name"]
new_file_name = f"{old_file_name.rsplit('.', 1)[0]}{file_extension}"
emoji_record["file_name"] = new_file_name
emoji["file_name"] = new_file_name
logging.info("######### GETTING EMOJIS FINISHED #########\n")
return emoji_records
def create_converted_data_files(data: Any, output_dir: str, file_path: str) -> None:
output_file = output_dir + file_path
os.makedirs(os.path.dirname(output_file), exist_ok=True)
with open(output_file, "wb") as fp:
fp.write(orjson.dumps(data, option=orjson.OPT_INDENT_2))
# External user-id
ExternalId = TypeVar("ExternalId")
def long_term_idle_helper(
message_iterator: Iterator[ZerverFieldsT],
user_from_message: Callable[[ZerverFieldsT], ExternalId | None],
timestamp_from_message: Callable[[ZerverFieldsT], float],
zulip_user_id_from_user: Callable[[ExternalId], int],
all_user_ids_iterator: Iterator[ExternalId],
zerver_userprofile: list[ZerverFieldsT],
) -> set[int]:
"""Algorithmically, we treat users who have sent at least 10 messages
or have sent a message within the last 60 days as active.
Everyone else is treated as long-term idle, which means they will
have a slightly slower first page load when coming back to
Zulip.
"""
sender_counts: dict[ExternalId, int] = defaultdict(int)
recent_senders: set[ExternalId] = set()
NOW = float(timezone_now().timestamp())
for message in message_iterator:
timestamp = timestamp_from_message(message)
user = user_from_message(message)
if user is None:
continue
if user in recent_senders:
continue
if NOW - timestamp < 60 * 24 * 60 * 60:
recent_senders.add(user)
sender_counts[user] += 1
for user, count in sender_counts.items():
if count > 10:
recent_senders.add(user)
long_term_idle = set()
for user_id in all_user_ids_iterator:
if user_id in recent_senders:
continue
zulip_user_id = zulip_user_id_from_user(user_id)
long_term_idle.add(zulip_user_id)
for user_profile_row in zerver_userprofile:
if user_profile_row["id"] in long_term_idle:
user_profile_row["long_term_idle"] = True
# Setting last_active_message_id to 1 means the user, if
# imported, will get the full message history for the
# streams they were on.
user_profile_row["last_active_message_id"] = 1
return long_term_idle