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# Copyright 2020 Dirk Klimpel
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import logging
from typing import TYPE_CHECKING, Tuple
from synapse.api.errors import Codes, SynapseError
from synapse.http.servlet import RestServlet, parse_integer, parse_string
from synapse.http.site import SynapseRequest
from synapse.rest.admin._base import admin_patterns, assert_requester_is_admin
from synapse.storage.databases.main.stats import UserSortOrder
from synapse.types import JsonDict
if TYPE_CHECKING:
from synapse.server import HomeServer
logger = logging.getLogger(__name__)
class UserMediaStatisticsRestServlet(RestServlet):
"""
Get statistics about uploaded media by users.
"""
PATTERNS = admin_patterns("/statistics/users/media$")
def __init__(self, hs: "HomeServer"):
self.hs = hs
self.auth = hs.get_auth()
self.store = hs.get_datastore()
async def on_GET(self, request: SynapseRequest) -> Tuple[int, JsonDict]:
await assert_requester_is_admin(self.auth, request)
order_by = parse_string(
request, "order_by", default=UserSortOrder.USER_ID.value
)
if order_by not in (
UserSortOrder.MEDIA_LENGTH.value,
UserSortOrder.MEDIA_COUNT.value,
UserSortOrder.USER_ID.value,
UserSortOrder.DISPLAYNAME.value,
):
raise SynapseError(
400,
"Unknown value for order_by: %s" % (order_by,),
errcode=Codes.INVALID_PARAM,
)
start = parse_integer(request, "from", default=0)
if start < 0:
raise SynapseError(
400,
"Query parameter from must be a string representing a positive integer.",
errcode=Codes.INVALID_PARAM,
)
limit = parse_integer(request, "limit", default=100)
if limit < 0:
raise SynapseError(
400,
"Query parameter limit must be a string representing a positive integer.",
errcode=Codes.INVALID_PARAM,
)
from_ts = parse_integer(request, "from_ts", default=0)
if from_ts < 0:
raise SynapseError(
400,
"Query parameter from_ts must be a string representing a positive integer.",
errcode=Codes.INVALID_PARAM,
)
until_ts = parse_integer(request, "until_ts")
if until_ts is not None:
if until_ts < 0:
raise SynapseError(
400,
"Query parameter until_ts must be a string representing a positive integer.",
errcode=Codes.INVALID_PARAM,
)
if until_ts <= from_ts:
raise SynapseError(
400,
"Query parameter until_ts must be greater than from_ts.",
errcode=Codes.INVALID_PARAM,
)
search_term = parse_string(request, "search_term")
if search_term == "":
raise SynapseError(
400,
"Query parameter search_term cannot be an empty string.",
errcode=Codes.INVALID_PARAM,
)
direction = parse_string(request, "dir", default="f")
if direction not in ("f", "b"):
raise SynapseError(
400, "Unknown direction: %s" % (direction,), errcode=Codes.INVALID_PARAM
)
users_media, total = await self.store.get_users_media_usage_paginate(
start, limit, from_ts, until_ts, order_by, direction, search_term
)
ret = {"users": users_media, "total": total}
if (start + limit) < total:
ret["next_token"] = start + len(users_media)
return 200, ret
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