mirror of https://github.com/zulip/zulip.git
86 lines
3.6 KiB
Python
86 lines
3.6 KiB
Python
from datetime import timedelta
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import ujson
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from django.conf import settings
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from django.http import HttpRequest, HttpResponse
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from django.utils.timezone import now as timezone_now
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from django.utils.translation import ugettext as _
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from analytics.models import RealmCount
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from zerver.decorator import require_realm_admin
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from zerver.lib.actions import do_delete_realm_export, notify_realm_export
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from zerver.lib.export import get_realm_exports_serialized
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from zerver.lib.queue import queue_json_publish
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from zerver.lib.response import json_error, json_success
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from zerver.models import RealmAuditLog, UserProfile
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@require_realm_admin
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def export_realm(request: HttpRequest, user: UserProfile) -> HttpResponse:
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# Currently only supports public-data-only exports.
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event_type = RealmAuditLog.REALM_EXPORTED
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event_time = timezone_now()
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realm = user.realm
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EXPORT_LIMIT = 5
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# Conservative limit on the size of message history in
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# organizations being exported; this exists to protect Zulip
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# against a possible unmonitored accidental DoS caused by trying
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# to export an organization with huge history.
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MAX_MESSAGE_HISTORY = 250000
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MAX_UPLOAD_QUOTA = 10 * 1024 * 1024 * 1024
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# Filter based upon the number of events that have occurred in the delta
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# If we are at the limit, the incoming request is rejected
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event_time_delta = event_time - timedelta(days=7)
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limit_check = RealmAuditLog.objects.filter(realm=realm,
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event_type=event_type,
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event_time__gte=event_time_delta)
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if len(limit_check) >= EXPORT_LIMIT:
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return json_error(_('Exceeded rate limit.'))
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total_messages = sum(realm_count.value for realm_count in
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RealmCount.objects.filter(realm=user.realm,
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property='messages_sent:client:day'))
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if (total_messages > MAX_MESSAGE_HISTORY or
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user.realm.currently_used_upload_space_bytes() > MAX_UPLOAD_QUOTA):
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return json_error(_('Please request a manual export from %s.') % (
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settings.ZULIP_ADMINISTRATOR,))
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row = RealmAuditLog.objects.create(realm=realm,
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event_type=event_type,
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event_time=event_time,
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acting_user=user)
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# Allow for UI updates on a pending export
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notify_realm_export(user)
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# Using the deferred_work queue processor to avoid
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# killing the process after 60s
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event = {'type': "realm_export",
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'time': event_time,
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'realm_id': realm.id,
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'user_profile_id': user.id,
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'id': row.id}
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queue_json_publish('deferred_work', event)
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return json_success()
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@require_realm_admin
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def get_realm_exports(request: HttpRequest, user: UserProfile) -> HttpResponse:
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realm_exports = get_realm_exports_serialized(user)
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return json_success({"exports": realm_exports})
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@require_realm_admin
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def delete_realm_export(request: HttpRequest, user: UserProfile, export_id: int) -> HttpResponse:
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try:
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audit_log_entry = RealmAuditLog.objects.get(id=export_id,
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realm=user.realm,
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event_type=RealmAuditLog.REALM_EXPORTED)
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except RealmAuditLog.DoesNotExist:
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return json_error(_("Invalid data export ID"))
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export_data = ujson.loads(audit_log_entry.extra_data)
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if 'deleted_timestamp' in export_data:
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return json_error(_("Export already deleted"))
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do_delete_realm_export(user, audit_log_entry)
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return json_success()
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