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				https://github.com/zulip/zulip.git
				synced 2025-11-03 21:43:21 +00:00 
			
		
		
		
	Previously, we skipped setting the list of subscribers to the channel, which could result in problems if any messages had been posted there in the past (e.g. because the channel used to have members, but now doesn't). It could be correct to skip importing dead channels altogether, but probably simpler is to just set an empty subscriber list.
		
			
				
	
	
		
			839 lines
		
	
	
		
			32 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			839 lines
		
	
	
		
			32 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
"""
 | 
						|
spec:
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https://docs.mattermost.com/administration/bulk-export.html
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"""
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import os
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import logging
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import subprocess
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import ujson
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import re
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import shutil
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from typing import Any, Callable, Dict, List, Set
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from django.conf import settings
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from django.utils.timezone import now as timezone_now
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from django.forms.models import model_to_dict
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from zerver.models import Recipient, RealmEmoji, Reaction, UserProfile
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from zerver.lib.utils import (
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    process_list_in_batches,
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)
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from zerver.lib.emoji import NAME_TO_CODEPOINT_PATH
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from zerver.data_import.import_util import ZerverFieldsT, build_zerver_realm, \
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    build_stream, build_realm, build_message, create_converted_data_files, \
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    make_subscriber_map, build_recipients, build_user_profile, \
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    build_stream_subscriptions, build_huddle_subscriptions, \
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    build_personal_subscriptions, SubscriberHandler, \
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    build_realm_emoji, make_user_messages, build_huddle
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from zerver.data_import.mattermost_user import UserHandler
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from zerver.data_import.sequencer import NEXT_ID, IdMapper
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def make_realm(realm_id: int, team: Dict[str, Any]) -> ZerverFieldsT:
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    # set correct realm details
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    NOW = float(timezone_now().timestamp())
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    domain_name = settings.EXTERNAL_HOST
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    realm_subdomain = team["name"]
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    zerver_realm = build_zerver_realm(realm_id, realm_subdomain, NOW, 'Mattermost')
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    realm = build_realm(zerver_realm, realm_id, domain_name)
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    # We may override these later.
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    realm['zerver_defaultstream'] = []
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    return realm
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def process_user(user_dict: Dict[str, Any], realm_id: int, team_name: str,
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                 user_id_mapper: IdMapper) -> ZerverFieldsT:
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    def is_team_admin(user_dict: Dict[str, Any]) -> bool:
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        if user_dict["teams"] is None:
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            return False
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        for team in user_dict["teams"]:
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            if team["name"] == team_name and "team_admin" in team["roles"]:
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                return True
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        return False
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    def get_full_name(user_dict: Dict[str, Any]) -> str:
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        full_name = "{} {}".format(user_dict["first_name"], user_dict["last_name"])
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        if full_name.strip():
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            return full_name
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        return user_dict['username']
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    avatar_source = 'G'
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    full_name = get_full_name(user_dict)
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    id = user_id_mapper.get(user_dict['username'])
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    delivery_email = user_dict['email']
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    email = user_dict['email']
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    short_name = user_dict['username']
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    date_joined = int(timezone_now().timestamp())
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    timezone = 'UTC'
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    role = UserProfile.ROLE_MEMBER
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    if is_team_admin(user_dict):
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        role = UserProfile.ROLE_REALM_ADMINISTRATOR
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    if user_dict["is_mirror_dummy"]:
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        is_active = False
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        is_mirror_dummy = True
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    else:
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        is_active = True
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        is_mirror_dummy = False
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    return build_user_profile(
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        avatar_source=avatar_source,
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        date_joined=date_joined,
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        delivery_email=delivery_email,
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        email=email,
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        full_name=full_name,
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        id=id,
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        is_active=is_active,
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        role=role,
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        is_mirror_dummy=is_mirror_dummy,
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        realm_id=realm_id,
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        short_name=short_name,
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        timezone=timezone,
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    )
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def convert_user_data(user_handler: UserHandler,
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                      user_id_mapper: IdMapper,
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                      user_data_map: Dict[str, Dict[str, Any]],
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                      realm_id: int,
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                      team_name: str) -> None:
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    user_data_list = []
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    for username in user_data_map:
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        user = user_data_map[username]
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        if check_user_in_team(user, team_name) or user["is_mirror_dummy"]:
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            user_data_list.append(user)
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    for raw_item in user_data_list:
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        user = process_user(raw_item, realm_id, team_name, user_id_mapper)
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        user_handler.add_user(user)
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def convert_channel_data(channel_data: List[ZerverFieldsT],
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                         user_data_map: Dict[str, Dict[str, Any]],
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                         subscriber_handler: SubscriberHandler,
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                         stream_id_mapper: IdMapper,
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                         user_id_mapper: IdMapper,
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                         realm_id: int,
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                         team_name: str) -> List[ZerverFieldsT]:
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    channel_data_list = [
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        d
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        for d in channel_data
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        if d['team'] == team_name
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    ]
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    channel_members_map = {}  # type: Dict[str, List[str]]
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    channel_admins_map = {}  # type: Dict[str, List[str]]
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    def initialize_stream_membership_dicts() -> None:
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        for channel in channel_data:
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            channel_name = channel["name"]
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            channel_members_map[channel_name] = []
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            channel_admins_map[channel_name] = []
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        for username in user_data_map:
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            user_dict = user_data_map[username]
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            teams = user_dict["teams"]
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            if user_dict["teams"] is None:
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                continue
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            for team in teams:
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                if team["name"] != team_name:
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                    continue
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                for channel in team["channels"]:
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                    channel_roles = channel["roles"]
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                    channel_name = channel["name"]
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                    if "channel_admin" in channel_roles:
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                        channel_admins_map[channel_name].append(username)
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                    elif "channel_user" in channel_roles:
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                        channel_members_map[channel_name].append(username)
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    def get_invite_only_value_from_channel_type(channel_type: str) -> bool:
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        # Channel can have two types in Mattermost
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        # "O" for a public channel.
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        # "P" for a private channel.
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        if channel_type == 'O':
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            return False
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        elif channel_type == 'P':
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            return True
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        else:  # nocoverage
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            raise Exception('unexpected value')
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    streams = []
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    initialize_stream_membership_dicts()
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    for channel_dict in channel_data_list:
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        now = int(timezone_now().timestamp())
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        stream_id = stream_id_mapper.get(channel_dict['name'])
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        stream_name = channel_dict["name"]
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        invite_only = get_invite_only_value_from_channel_type(channel_dict['type'])
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        stream = build_stream(
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            date_created=now,
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            realm_id=realm_id,
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            name=channel_dict['display_name'],
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            # Purpose describes how the channel should be used. It is similar to
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            # stream description and is shown in channel list to help others decide
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            # whether to join.
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            # Header text always appears right next to channel name in channel header.
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            # Can be used for advertising the purpose of stream, making announcements as
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            # well as including frequently used links. So probably not a bad idea to use
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            # this as description if the channel purpose is empty.
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            description=channel_dict["purpose"] or channel_dict['header'],
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            stream_id=stream_id,
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            # Mattermost export don't include data of archived(~ deactivated) channels.
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            deactivated=False,
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            invite_only=invite_only,
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        )
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        channel_users = set()
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        for username in channel_admins_map[stream_name]:
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            channel_users.add(user_id_mapper.get(username))
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						|
        for username in channel_members_map[stream_name]:
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            channel_users.add(user_id_mapper.get(username))
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        subscriber_handler.set_info(
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            users=channel_users,
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            stream_id=stream_id,
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        )
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        streams.append(stream)
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    return streams
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def generate_huddle_name(huddle_members: List[str]) -> str:
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						|
    # Simple hash function to generate a unique hash key for the
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						|
    # members of a huddle.  Needs to be consistent only within the
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						|
    # lifetime of export tool run, as it doesn't appear in the output.
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    import hashlib
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						|
    return hashlib.md5(''.join(sorted(huddle_members)).encode('utf-8')).hexdigest()
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def convert_huddle_data(huddle_data: List[ZerverFieldsT],
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                        user_data_map: Dict[str, Dict[str, Any]],
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                        subscriber_handler: SubscriberHandler,
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                        huddle_id_mapper: IdMapper,
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                        user_id_mapper: IdMapper,
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                        realm_id: int,
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						|
                        team_name: str) -> List[ZerverFieldsT]:
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    zerver_huddle = []
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						|
    for huddle in huddle_data:
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						|
        if len(huddle["members"]) > 2:
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            huddle_name = generate_huddle_name(huddle["members"])
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            huddle_id = huddle_id_mapper.get(huddle_name)
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            huddle_dict = build_huddle(huddle_id)
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            huddle_user_ids = set()
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						|
            for username in huddle["members"]:
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						|
                huddle_user_ids.add(user_id_mapper.get(username))
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            subscriber_handler.set_info(
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                users=huddle_user_ids,
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						|
                huddle_id=huddle_id,
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						|
            )
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            zerver_huddle.append(huddle_dict)
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    return zerver_huddle
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def get_name_to_codepoint_dict() -> Dict[str, str]:
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						|
    with open(NAME_TO_CODEPOINT_PATH) as fp:
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        return ujson.load(fp)
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def build_reactions(realm_id: int, total_reactions: List[ZerverFieldsT], reactions: List[ZerverFieldsT],
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                    message_id: int, name_to_codepoint: ZerverFieldsT,
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                    user_id_mapper: IdMapper, zerver_realmemoji: List[ZerverFieldsT]) -> None:
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						|
    realmemoji = {}
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						|
    for realm_emoji in zerver_realmemoji:
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						|
        realmemoji[realm_emoji['name']] = realm_emoji['id']
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						|
 | 
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    # For the unicode emoji codes, we use equivalent of
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						|
    # function 'emoji_name_to_emoji_code' in 'zerver/lib/emoji' here
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						|
    for mattermost_reaction in reactions:
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						|
        emoji_name = mattermost_reaction['emoji_name']
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						|
        username = mattermost_reaction["user"]
 | 
						|
        # Check in unicode emoji
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						|
        if emoji_name in name_to_codepoint:
 | 
						|
            emoji_code = name_to_codepoint[emoji_name]
 | 
						|
            reaction_type = Reaction.UNICODE_EMOJI
 | 
						|
        # Check in realm emoji
 | 
						|
        elif emoji_name in realmemoji:
 | 
						|
            emoji_code = realmemoji[emoji_name]
 | 
						|
            reaction_type = Reaction.REALM_EMOJI
 | 
						|
        else:  # nocoverage
 | 
						|
            continue
 | 
						|
 | 
						|
        if not user_id_mapper.has(username):
 | 
						|
            continue
 | 
						|
 | 
						|
        reaction_id = NEXT_ID('reaction')
 | 
						|
        reaction = Reaction(
 | 
						|
            id=reaction_id,
 | 
						|
            emoji_code=emoji_code,
 | 
						|
            emoji_name=emoji_name,
 | 
						|
            reaction_type=reaction_type)
 | 
						|
 | 
						|
        reaction_dict = model_to_dict(reaction, exclude=['message', 'user_profile'])
 | 
						|
        reaction_dict['message'] = message_id
 | 
						|
        reaction_dict['user_profile'] = user_id_mapper.get(username)
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						|
        total_reactions.append(reaction_dict)
 | 
						|
 | 
						|
def get_mentioned_user_ids(raw_message: Dict[str, Any], user_id_mapper: IdMapper) -> Set[int]:
 | 
						|
    user_ids = set()
 | 
						|
    content = raw_message["content"]
 | 
						|
 | 
						|
    # usernames can be of the form user.name, user_name, username., username_, user.name_ etc
 | 
						|
    matches = re.findall("(?<=^|(?<=[^a-zA-Z0-9-_.]))@(([A-Za-z0-9]+[_.]?)+)", content)
 | 
						|
 | 
						|
    for match in matches:
 | 
						|
        possible_username = match[0]
 | 
						|
        if user_id_mapper.has(possible_username):
 | 
						|
            user_ids.add(user_id_mapper.get(possible_username))
 | 
						|
    return user_ids
 | 
						|
 | 
						|
def process_raw_message_batch(realm_id: int,
 | 
						|
                              raw_messages: List[Dict[str, Any]],
 | 
						|
                              subscriber_map: Dict[int, Set[int]],
 | 
						|
                              user_id_mapper: IdMapper,
 | 
						|
                              user_handler: UserHandler,
 | 
						|
                              get_recipient_id_from_receiver_name: Callable[[str, int], int],
 | 
						|
                              is_pm_data: bool,
 | 
						|
                              output_dir: str,
 | 
						|
                              zerver_realmemoji: List[Dict[str, Any]],
 | 
						|
                              total_reactions: List[Dict[str, Any]],
 | 
						|
                              ) -> None:
 | 
						|
 | 
						|
    def fix_mentions(content: str, mention_user_ids: Set[int]) -> str:
 | 
						|
        for user_id in mention_user_ids:
 | 
						|
            user = user_handler.get_user(user_id=user_id)
 | 
						|
            mattermost_mention = '@{short_name}'.format(**user)
 | 
						|
            zulip_mention = '@**{full_name}**'.format(**user)
 | 
						|
            content = content.replace(mattermost_mention, zulip_mention)
 | 
						|
 | 
						|
        content = content.replace('@channel', '@**all**')
 | 
						|
        content = content.replace('@all', '@**all**')
 | 
						|
        # We don't have an equivalent for Mattermost's @here mention which mentions all users
 | 
						|
        # online in the channel.
 | 
						|
        content = content.replace('@here', '@**all**')
 | 
						|
        return content
 | 
						|
 | 
						|
    mention_map = dict()  # type: Dict[int, Set[int]]
 | 
						|
    zerver_message = []
 | 
						|
 | 
						|
    import html2text
 | 
						|
    h = html2text.HTML2Text()
 | 
						|
 | 
						|
    name_to_codepoint = get_name_to_codepoint_dict()
 | 
						|
    pm_members = {}
 | 
						|
 | 
						|
    for raw_message in raw_messages:
 | 
						|
        message_id = NEXT_ID('message')
 | 
						|
        mention_user_ids = get_mentioned_user_ids(raw_message, user_id_mapper)
 | 
						|
        mention_map[message_id] = mention_user_ids
 | 
						|
 | 
						|
        content = fix_mentions(
 | 
						|
            content=raw_message['content'],
 | 
						|
            mention_user_ids=mention_user_ids,
 | 
						|
        )
 | 
						|
        content = h.handle(content)
 | 
						|
 | 
						|
        if len(content) > 10000:  # nocoverage
 | 
						|
            logging.info('skipping too-long message of length %s' % (len(content),))
 | 
						|
            continue
 | 
						|
 | 
						|
        date_sent = raw_message['date_sent']
 | 
						|
        sender_user_id = raw_message['sender_id']
 | 
						|
        if "channel_name" in raw_message:
 | 
						|
            recipient_id = get_recipient_id_from_receiver_name(raw_message["channel_name"], Recipient.STREAM)
 | 
						|
        elif "huddle_name" in raw_message:
 | 
						|
            recipient_id = get_recipient_id_from_receiver_name(raw_message["huddle_name"], Recipient.HUDDLE)
 | 
						|
        elif "pm_members" in raw_message:
 | 
						|
            members = raw_message["pm_members"]
 | 
						|
            member_ids = {user_id_mapper.get(member) for member in members}
 | 
						|
            pm_members[message_id] = member_ids
 | 
						|
            if sender_user_id == user_id_mapper.get(members[0]):
 | 
						|
                recipient_id = get_recipient_id_from_receiver_name(members[1], Recipient.PERSONAL)
 | 
						|
            else:
 | 
						|
                recipient_id = get_recipient_id_from_receiver_name(members[0], Recipient.PERSONAL)
 | 
						|
        else:
 | 
						|
            raise AssertionError("raw_message without channel_name, huddle_name or pm_members key")
 | 
						|
 | 
						|
        rendered_content = None
 | 
						|
 | 
						|
        topic_name = 'imported from mattermost'
 | 
						|
 | 
						|
        message = build_message(
 | 
						|
            content=content,
 | 
						|
            message_id=message_id,
 | 
						|
            date_sent=date_sent,
 | 
						|
            recipient_id=recipient_id,
 | 
						|
            rendered_content=rendered_content,
 | 
						|
            topic_name=topic_name,
 | 
						|
            user_id=sender_user_id,
 | 
						|
            has_attachment=False,
 | 
						|
        )
 | 
						|
        zerver_message.append(message)
 | 
						|
        build_reactions(realm_id, total_reactions, raw_message["reactions"], message_id,
 | 
						|
                        name_to_codepoint, user_id_mapper, zerver_realmemoji)
 | 
						|
 | 
						|
    zerver_usermessage = make_user_messages(
 | 
						|
        zerver_message=zerver_message,
 | 
						|
        subscriber_map=subscriber_map,
 | 
						|
        is_pm_data=is_pm_data,
 | 
						|
        mention_map=mention_map,
 | 
						|
    )
 | 
						|
 | 
						|
    message_json = dict(
 | 
						|
        zerver_message=zerver_message,
 | 
						|
        zerver_usermessage=zerver_usermessage,
 | 
						|
    )
 | 
						|
 | 
						|
    dump_file_id = NEXT_ID('dump_file_id' + str(realm_id))
 | 
						|
    message_file = "/messages-%06d.json" % (dump_file_id,)
 | 
						|
    create_converted_data_files(message_json, output_dir, message_file)
 | 
						|
 | 
						|
def process_posts(num_teams: int,
 | 
						|
                  team_name: str,
 | 
						|
                  realm_id: int,
 | 
						|
                  post_data: List[Dict[str, Any]],
 | 
						|
                  get_recipient_id_from_receiver_name: Callable[[str, int], int],
 | 
						|
                  subscriber_map: Dict[int, Set[int]],
 | 
						|
                  output_dir: str,
 | 
						|
                  is_pm_data: bool,
 | 
						|
                  masking_content: bool,
 | 
						|
                  user_id_mapper: IdMapper,
 | 
						|
                  user_handler: UserHandler,
 | 
						|
                  username_to_user: Dict[str, Dict[str, Any]],
 | 
						|
                  zerver_realmemoji: List[Dict[str, Any]],
 | 
						|
                  total_reactions: List[Dict[str, Any]]) -> None:
 | 
						|
 | 
						|
    post_data_list = []
 | 
						|
    for post in post_data:
 | 
						|
        if "team" not in post:
 | 
						|
            # Mattermost doesn't specify a team for private messages
 | 
						|
            # in its export format.  This line of code requires that
 | 
						|
            # we only be importing data from a single team (checked
 | 
						|
            # elsewhere) -- we just assume it's the target team.
 | 
						|
            post_team = team_name
 | 
						|
        else:
 | 
						|
            post_team = post["team"]
 | 
						|
        if post_team == team_name:
 | 
						|
            post_data_list.append(post)
 | 
						|
 | 
						|
    def message_to_dict(post_dict: Dict[str, Any]) -> Dict[str, Any]:
 | 
						|
        sender_username = post_dict["user"]
 | 
						|
        sender_id = user_id_mapper.get(sender_username)
 | 
						|
        content = post_dict['message']
 | 
						|
 | 
						|
        if masking_content:
 | 
						|
            content = re.sub('[a-z]', 'x', content)
 | 
						|
            content = re.sub('[A-Z]', 'X', content)
 | 
						|
 | 
						|
        if "reactions" in post_dict:
 | 
						|
            reactions = post_dict["reactions"] or []
 | 
						|
        else:
 | 
						|
            reactions = []
 | 
						|
 | 
						|
        message_dict = dict(
 | 
						|
            sender_id=sender_id,
 | 
						|
            content=content,
 | 
						|
            date_sent=int(post_dict['create_at'] / 1000),
 | 
						|
            reactions=reactions
 | 
						|
        )
 | 
						|
        if "channel" in post_dict:
 | 
						|
            message_dict["channel_name"] = post_dict["channel"]
 | 
						|
        elif "channel_members" in post_dict:
 | 
						|
            # This case is for handling posts from PMs and huddles, not channels.
 | 
						|
            # PMs and huddles are known as direct_channels in Slack and hence
 | 
						|
            # the name channel_members.
 | 
						|
            channel_members = post_dict["channel_members"]
 | 
						|
            if len(channel_members) > 2:
 | 
						|
                message_dict["huddle_name"] = generate_huddle_name(channel_members)
 | 
						|
            elif len(channel_members) == 2:
 | 
						|
                message_dict["pm_members"] = channel_members
 | 
						|
        else:
 | 
						|
            raise AssertionError("Post without channel or channel_members key.")
 | 
						|
        return message_dict
 | 
						|
 | 
						|
    raw_messages = []
 | 
						|
    for post_dict in post_data_list:
 | 
						|
        raw_messages.append(message_to_dict(post_dict))
 | 
						|
        message_replies = post_dict["replies"]
 | 
						|
        # Replies to a message in Mattermost are stored in the main message object.
 | 
						|
        # For now, we just append the replies immediately after the original message.
 | 
						|
        if message_replies is not None:
 | 
						|
            for reply in message_replies:
 | 
						|
                if 'channel' in post_dict:
 | 
						|
                    reply["channel"] = post_dict["channel"]
 | 
						|
                else:  # nocoverage
 | 
						|
                    reply["channel_members"] = post_dict["channel_members"]
 | 
						|
                raw_messages.append(message_to_dict(reply))
 | 
						|
 | 
						|
    def process_batch(lst: List[Dict[str, Any]]) -> None:
 | 
						|
        process_raw_message_batch(
 | 
						|
            realm_id=realm_id,
 | 
						|
            raw_messages=lst,
 | 
						|
            subscriber_map=subscriber_map,
 | 
						|
            user_id_mapper=user_id_mapper,
 | 
						|
            user_handler=user_handler,
 | 
						|
            get_recipient_id_from_receiver_name=get_recipient_id_from_receiver_name,
 | 
						|
            is_pm_data=is_pm_data,
 | 
						|
            output_dir=output_dir,
 | 
						|
            zerver_realmemoji=zerver_realmemoji,
 | 
						|
            total_reactions=total_reactions,
 | 
						|
        )
 | 
						|
 | 
						|
    chunk_size = 1000
 | 
						|
 | 
						|
    process_list_in_batches(
 | 
						|
        lst=raw_messages,
 | 
						|
        chunk_size=chunk_size,
 | 
						|
        process_batch=process_batch,
 | 
						|
    )
 | 
						|
 | 
						|
def write_message_data(num_teams: int,
 | 
						|
                       team_name: str,
 | 
						|
                       realm_id: int,
 | 
						|
                       post_data: Dict[str, List[Dict[str, Any]]],
 | 
						|
                       zerver_recipient: List[ZerverFieldsT],
 | 
						|
                       subscriber_map: Dict[int, Set[int]],
 | 
						|
                       output_dir: str,
 | 
						|
                       masking_content: bool,
 | 
						|
                       stream_id_mapper: IdMapper,
 | 
						|
                       huddle_id_mapper: IdMapper,
 | 
						|
                       user_id_mapper: IdMapper,
 | 
						|
                       user_handler: UserHandler,
 | 
						|
                       username_to_user: Dict[str, Dict[str, Any]],
 | 
						|
                       zerver_realmemoji: List[Dict[str, Any]],
 | 
						|
                       total_reactions: List[Dict[str, Any]]) -> None:
 | 
						|
    stream_id_to_recipient_id = {}
 | 
						|
    huddle_id_to_recipient_id = {}
 | 
						|
    user_id_to_recipient_id = {}
 | 
						|
 | 
						|
    for d in zerver_recipient:
 | 
						|
        if d['type'] == Recipient.STREAM:
 | 
						|
            stream_id_to_recipient_id[d['type_id']] = d['id']
 | 
						|
        elif d['type'] == Recipient.HUDDLE:
 | 
						|
            huddle_id_to_recipient_id[d['type_id']] = d['id']
 | 
						|
        if d['type'] == Recipient.PERSONAL:
 | 
						|
            user_id_to_recipient_id[d['type_id']] = d['id']
 | 
						|
 | 
						|
    def get_recipient_id_from_receiver_name(receiver_name: str, recipient_type: int) -> int:
 | 
						|
        if recipient_type == Recipient.STREAM:
 | 
						|
            receiver_id = stream_id_mapper.get(receiver_name)
 | 
						|
            recipient_id = stream_id_to_recipient_id[receiver_id]
 | 
						|
        elif recipient_type == Recipient.HUDDLE:
 | 
						|
            receiver_id = huddle_id_mapper.get(receiver_name)
 | 
						|
            recipient_id = huddle_id_to_recipient_id[receiver_id]
 | 
						|
        elif recipient_type == Recipient.PERSONAL:
 | 
						|
            receiver_id = user_id_mapper.get(receiver_name)
 | 
						|
            recipient_id = user_id_to_recipient_id[receiver_id]
 | 
						|
        else:
 | 
						|
            raise AssertionError("Invalid recipient_type")
 | 
						|
        return recipient_id
 | 
						|
 | 
						|
    if num_teams == 1:
 | 
						|
        post_types = ["channel_post", "direct_post"]
 | 
						|
    else:
 | 
						|
        post_types = ["channel_post"]
 | 
						|
        logging.warning("Skipping importing huddles and PMs since there are multiple teams in the export")
 | 
						|
 | 
						|
    for post_type in post_types:
 | 
						|
        process_posts(
 | 
						|
            num_teams=num_teams,
 | 
						|
            team_name=team_name,
 | 
						|
            realm_id=realm_id,
 | 
						|
            post_data=post_data[post_type],
 | 
						|
            get_recipient_id_from_receiver_name=get_recipient_id_from_receiver_name,
 | 
						|
            subscriber_map=subscriber_map,
 | 
						|
            output_dir=output_dir,
 | 
						|
            is_pm_data=post_type == "direct_post",
 | 
						|
            masking_content=masking_content,
 | 
						|
            user_id_mapper=user_id_mapper,
 | 
						|
            user_handler=user_handler,
 | 
						|
            username_to_user=username_to_user,
 | 
						|
            zerver_realmemoji=zerver_realmemoji,
 | 
						|
            total_reactions=total_reactions,
 | 
						|
        )
 | 
						|
 | 
						|
def write_emoticon_data(realm_id: int,
 | 
						|
                        custom_emoji_data: List[Dict[str, Any]],
 | 
						|
                        data_dir: str,
 | 
						|
                        output_dir: str) -> List[ZerverFieldsT]:
 | 
						|
    '''
 | 
						|
    This function does most of the work for processing emoticons, the bulk
 | 
						|
    of which is copying files.  We also write a json file with metadata.
 | 
						|
    Finally, we return a list of RealmEmoji dicts to our caller.
 | 
						|
 | 
						|
    In our data_dir we have a pretty simple setup:
 | 
						|
 | 
						|
        The exported JSON file will have emoji rows if it contains any custom emoji
 | 
						|
            {
 | 
						|
                "type": "emoji",
 | 
						|
                "emoji": {"name": "peerdium", "image": "exported_emoji/h15ni7kf1bnj7jeua4qhmctsdo/image"}
 | 
						|
            }
 | 
						|
            {
 | 
						|
                "type": "emoji",
 | 
						|
                "emoji": {"name": "tick", "image": "exported_emoji/7u7x8ytgp78q8jir81o9ejwwnr/image"}
 | 
						|
            }
 | 
						|
 | 
						|
        exported_emoji/ - contains a bunch of image files:
 | 
						|
            exported_emoji/7u7x8ytgp78q8jir81o9ejwwnr/image
 | 
						|
            exported_emoji/h15ni7kf1bnj7jeua4qhmctsdo/image
 | 
						|
 | 
						|
    We move all the relevant files to Zulip's more nested
 | 
						|
    directory structure.
 | 
						|
    '''
 | 
						|
 | 
						|
    logging.info('Starting to process emoticons')
 | 
						|
 | 
						|
    flat_data = [
 | 
						|
        dict(
 | 
						|
            path=d['image'],
 | 
						|
            name=d['name'],
 | 
						|
        )
 | 
						|
        for d in custom_emoji_data
 | 
						|
    ]
 | 
						|
 | 
						|
    emoji_folder = os.path.join(output_dir, 'emoji')
 | 
						|
    os.makedirs(emoji_folder, exist_ok=True)
 | 
						|
 | 
						|
    def process(data: ZerverFieldsT) -> ZerverFieldsT:
 | 
						|
        source_sub_path = data['path']
 | 
						|
        source_path = os.path.join(data_dir, source_sub_path)
 | 
						|
 | 
						|
        target_fn = data["name"]
 | 
						|
        target_sub_path = RealmEmoji.PATH_ID_TEMPLATE.format(
 | 
						|
            realm_id=realm_id,
 | 
						|
            emoji_file_name=target_fn,
 | 
						|
        )
 | 
						|
        target_path = os.path.join(emoji_folder, target_sub_path)
 | 
						|
 | 
						|
        os.makedirs(os.path.dirname(target_path), exist_ok=True)
 | 
						|
 | 
						|
        source_path = os.path.abspath(source_path)
 | 
						|
        target_path = os.path.abspath(target_path)
 | 
						|
 | 
						|
        shutil.copyfile(source_path, target_path)
 | 
						|
 | 
						|
        return dict(
 | 
						|
            path=target_path,
 | 
						|
            s3_path=target_path,
 | 
						|
            file_name=target_fn,
 | 
						|
            realm_id=realm_id,
 | 
						|
            name=data['name'],
 | 
						|
        )
 | 
						|
 | 
						|
    emoji_records = list(map(process, flat_data))
 | 
						|
    create_converted_data_files(emoji_records, output_dir, '/emoji/records.json')
 | 
						|
 | 
						|
    realmemoji = [
 | 
						|
        build_realm_emoji(
 | 
						|
            realm_id=realm_id,
 | 
						|
            name=rec['name'],
 | 
						|
            id=NEXT_ID('realmemoji'),
 | 
						|
            file_name=rec['file_name'],
 | 
						|
        )
 | 
						|
        for rec in emoji_records
 | 
						|
    ]
 | 
						|
    logging.info('Done processing emoticons')
 | 
						|
 | 
						|
    return realmemoji
 | 
						|
 | 
						|
def create_username_to_user_mapping(user_data_list: List[Dict[str, Any]]) -> Dict[str, Dict[str, Any]]:
 | 
						|
    username_to_user = {}
 | 
						|
    for user in user_data_list:
 | 
						|
        username_to_user[user["username"]] = user
 | 
						|
    return username_to_user
 | 
						|
 | 
						|
def check_user_in_team(user: Dict[str, Any], team_name: str) -> bool:
 | 
						|
    if user["teams"] is None:
 | 
						|
        # This is null for users not on any team
 | 
						|
        return False
 | 
						|
    for team in user["teams"]:
 | 
						|
        if team["name"] == team_name:
 | 
						|
            return True
 | 
						|
    return False
 | 
						|
 | 
						|
def label_mirror_dummy_users(num_teams: int, team_name: str, mattermost_data: Dict[str, Any],
 | 
						|
                             username_to_user: Dict[str, Dict[str, Any]]) -> None:
 | 
						|
    # This function might looks like a great place to label admin users. But
 | 
						|
    # that won't be fully correct since we are iterating only though posts and
 | 
						|
    # it covers only users that has sent atleast one message.
 | 
						|
    for post in mattermost_data["post"]["channel_post"]:
 | 
						|
        post_team = post["team"]
 | 
						|
        if post_team == team_name:
 | 
						|
            user = username_to_user[post["user"]]
 | 
						|
            if not check_user_in_team(user, team_name):
 | 
						|
                user["is_mirror_dummy"] = True
 | 
						|
 | 
						|
    if num_teams == 1:
 | 
						|
        for post in mattermost_data["post"]["direct_post"]:
 | 
						|
            assert("team" not in post)
 | 
						|
            user = username_to_user[post["user"]]
 | 
						|
            if not check_user_in_team(user, team_name):
 | 
						|
                user["is_mirror_dummy"] = True
 | 
						|
 | 
						|
def reset_mirror_dummy_users(username_to_user: Dict[str, Dict[str, Any]]) -> None:
 | 
						|
    for username in username_to_user:
 | 
						|
        user = username_to_user[username]
 | 
						|
        user["is_mirror_dummy"] = False
 | 
						|
 | 
						|
def mattermost_data_file_to_dict(mattermost_data_file: str) -> Dict[str, Any]:
 | 
						|
    mattermost_data = {}  # type: Dict[str, Any]
 | 
						|
    mattermost_data["version"] = []
 | 
						|
    mattermost_data["team"] = []
 | 
						|
    mattermost_data["channel"] = []
 | 
						|
    mattermost_data["user"] = []
 | 
						|
    mattermost_data["post"] = {"channel_post": [], "direct_post": []}
 | 
						|
    mattermost_data["emoji"] = []
 | 
						|
    mattermost_data["direct_channel"] = []
 | 
						|
 | 
						|
    with open(mattermost_data_file, "r") as fp:
 | 
						|
        for line in fp:
 | 
						|
            row = ujson.loads(line.rstrip("\n"))
 | 
						|
            data_type = row["type"]
 | 
						|
            if data_type == "post":
 | 
						|
                mattermost_data["post"]["channel_post"].append(row["post"])
 | 
						|
            elif data_type == "direct_post":
 | 
						|
                mattermost_data["post"]["direct_post"].append(row["direct_post"])
 | 
						|
            else:
 | 
						|
                mattermost_data[data_type].append(row[data_type])
 | 
						|
    return mattermost_data
 | 
						|
 | 
						|
def do_convert_data(mattermost_data_dir: str, output_dir: str, masking_content: bool) -> None:
 | 
						|
    username_to_user = {}  # type: Dict[str, Dict[str, Any]]
 | 
						|
 | 
						|
    os.makedirs(output_dir, exist_ok=True)
 | 
						|
    if os.listdir(output_dir):  # nocoverage
 | 
						|
        raise Exception("Output directory should be empty!")
 | 
						|
 | 
						|
    mattermost_data_file = os.path.join(mattermost_data_dir, "export.json")
 | 
						|
    mattermost_data = mattermost_data_file_to_dict(mattermost_data_file)
 | 
						|
 | 
						|
    username_to_user = create_username_to_user_mapping(mattermost_data["user"])
 | 
						|
 | 
						|
    for team in mattermost_data["team"]:
 | 
						|
        realm_id = NEXT_ID("realm_id")
 | 
						|
        team_name = team["name"]
 | 
						|
 | 
						|
        user_handler = UserHandler()
 | 
						|
        subscriber_handler = SubscriberHandler()
 | 
						|
        user_id_mapper = IdMapper()
 | 
						|
        stream_id_mapper = IdMapper()
 | 
						|
        huddle_id_mapper = IdMapper()
 | 
						|
 | 
						|
        print("Generating data for", team_name)
 | 
						|
        realm = make_realm(realm_id, team)
 | 
						|
        realm_output_dir = os.path.join(output_dir, team_name)
 | 
						|
 | 
						|
        reset_mirror_dummy_users(username_to_user)
 | 
						|
        label_mirror_dummy_users(len(mattermost_data["team"]), team_name, mattermost_data, username_to_user)
 | 
						|
 | 
						|
        convert_user_data(
 | 
						|
            user_handler=user_handler,
 | 
						|
            user_id_mapper=user_id_mapper,
 | 
						|
            user_data_map=username_to_user,
 | 
						|
            realm_id=realm_id,
 | 
						|
            team_name=team_name,
 | 
						|
        )
 | 
						|
 | 
						|
        zerver_stream = convert_channel_data(
 | 
						|
            channel_data=mattermost_data["channel"],
 | 
						|
            user_data_map=username_to_user,
 | 
						|
            subscriber_handler=subscriber_handler,
 | 
						|
            stream_id_mapper=stream_id_mapper,
 | 
						|
            user_id_mapper=user_id_mapper,
 | 
						|
            realm_id=realm_id,
 | 
						|
            team_name=team_name,
 | 
						|
        )
 | 
						|
        realm['zerver_stream'] = zerver_stream
 | 
						|
 | 
						|
        zerver_huddle = []  # type: List[ZerverFieldsT]
 | 
						|
        if len(mattermost_data["team"]) == 1:
 | 
						|
            zerver_huddle = convert_huddle_data(
 | 
						|
                huddle_data=mattermost_data["direct_channel"],
 | 
						|
                user_data_map=username_to_user,
 | 
						|
                subscriber_handler=subscriber_handler,
 | 
						|
                huddle_id_mapper=huddle_id_mapper,
 | 
						|
                user_id_mapper=user_id_mapper,
 | 
						|
                realm_id=realm_id,
 | 
						|
                team_name=team_name,
 | 
						|
            )
 | 
						|
            realm['zerver_huddle'] = zerver_huddle
 | 
						|
 | 
						|
        all_users = user_handler.get_all_users()
 | 
						|
 | 
						|
        zerver_recipient = build_recipients(
 | 
						|
            zerver_userprofile=all_users,
 | 
						|
            zerver_stream=zerver_stream,
 | 
						|
            zerver_huddle=zerver_huddle,
 | 
						|
        )
 | 
						|
        realm['zerver_recipient'] = zerver_recipient
 | 
						|
 | 
						|
        stream_subscriptions = build_stream_subscriptions(
 | 
						|
            get_users=subscriber_handler.get_users,
 | 
						|
            zerver_recipient=zerver_recipient,
 | 
						|
            zerver_stream=zerver_stream,
 | 
						|
        )
 | 
						|
 | 
						|
        huddle_subscriptions = build_huddle_subscriptions(
 | 
						|
            get_users=subscriber_handler.get_users,
 | 
						|
            zerver_recipient=zerver_recipient,
 | 
						|
            zerver_huddle=zerver_huddle,
 | 
						|
        )
 | 
						|
 | 
						|
        personal_subscriptions = build_personal_subscriptions(
 | 
						|
            zerver_recipient=zerver_recipient,
 | 
						|
        )
 | 
						|
 | 
						|
        # Mattermost currently supports only exporting messages from channels.
 | 
						|
        # Personal messages and huddles are not exported.
 | 
						|
        zerver_subscription = personal_subscriptions + stream_subscriptions + huddle_subscriptions
 | 
						|
        realm['zerver_subscription'] = zerver_subscription
 | 
						|
 | 
						|
        zerver_realmemoji = write_emoticon_data(
 | 
						|
            realm_id=realm_id,
 | 
						|
            custom_emoji_data=mattermost_data["emoji"],
 | 
						|
            data_dir=mattermost_data_dir,
 | 
						|
            output_dir=realm_output_dir,
 | 
						|
        )
 | 
						|
        realm['zerver_realmemoji'] = zerver_realmemoji
 | 
						|
 | 
						|
        subscriber_map = make_subscriber_map(
 | 
						|
            zerver_subscription=zerver_subscription,
 | 
						|
        )
 | 
						|
 | 
						|
        total_reactions = []  # type: List[Dict[str, Any]]
 | 
						|
        write_message_data(
 | 
						|
            num_teams=len(mattermost_data["team"]),
 | 
						|
            team_name=team_name,
 | 
						|
            realm_id=realm_id,
 | 
						|
            post_data=mattermost_data["post"],
 | 
						|
            zerver_recipient=zerver_recipient,
 | 
						|
            subscriber_map=subscriber_map,
 | 
						|
            output_dir=realm_output_dir,
 | 
						|
            masking_content=masking_content,
 | 
						|
            stream_id_mapper=stream_id_mapper,
 | 
						|
            huddle_id_mapper=huddle_id_mapper,
 | 
						|
            user_id_mapper=user_id_mapper,
 | 
						|
            user_handler=user_handler,
 | 
						|
            username_to_user=username_to_user,
 | 
						|
            zerver_realmemoji=zerver_realmemoji,
 | 
						|
            total_reactions=total_reactions,
 | 
						|
        )
 | 
						|
        realm['zerver_reaction'] = total_reactions
 | 
						|
        realm['zerver_userprofile'] = user_handler.get_all_users()
 | 
						|
        realm['sort_by_date'] = True
 | 
						|
 | 
						|
        create_converted_data_files(realm, realm_output_dir, '/realm.json')
 | 
						|
        # Mattermost currently doesn't support exporting avatars
 | 
						|
        create_converted_data_files([], realm_output_dir, '/avatars/records.json')
 | 
						|
        # Mattermost currently doesn't support exporting uploads
 | 
						|
        create_converted_data_files([], realm_output_dir, '/uploads/records.json')
 | 
						|
 | 
						|
        # Mattermost currently doesn't support exporting attachments
 | 
						|
        attachment = {"zerver_attachment": []}  # type: Dict[str, List[Any]]
 | 
						|
        create_converted_data_files(attachment, realm_output_dir, '/attachment.json')
 | 
						|
 | 
						|
        logging.info('Start making tarball')
 | 
						|
        subprocess.check_call(["tar", "-czf", realm_output_dir + '.tar.gz', realm_output_dir, '-P'])
 | 
						|
        logging.info('Done making tarball')
 |