115 lines
3.4 KiB
Go
115 lines
3.4 KiB
Go
// Copyright 2017 Vector Creations Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package sync
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import (
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"encoding/json"
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"net/http"
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"strconv"
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"time"
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"github.com/matrix-org/dendrite/syncapi/storage"
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"github.com/matrix-org/dendrite/syncapi/types"
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userapi "github.com/matrix-org/dendrite/userapi/api"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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"github.com/sirupsen/logrus"
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)
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const defaultSyncTimeout = time.Duration(0)
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const DefaultTimelineLimit = 20
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type filter struct {
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Room struct {
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Timeline struct {
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Limit *int `json:"limit"`
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} `json:"timeline"`
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} `json:"room"`
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}
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func newSyncRequest(req *http.Request, device userapi.Device, syncDB storage.Database) (*types.SyncRequest, error) {
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timeout := getTimeout(req.URL.Query().Get("timeout"))
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fullState := req.URL.Query().Get("full_state")
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wantFullState := fullState != "" && fullState != "false"
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since, sinceStr := types.StreamingToken{}, req.URL.Query().Get("since")
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if sinceStr != "" {
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var err error
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since, err = types.NewStreamTokenFromString(sinceStr)
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if err != nil {
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return nil, err
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}
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}
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timelineLimit := DefaultTimelineLimit
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// TODO: read from stored filters too
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filterQuery := req.URL.Query().Get("filter")
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if filterQuery != "" {
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if filterQuery[0] == '{' {
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// attempt to parse the timeline limit at least
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var f filter
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err := json.Unmarshal([]byte(filterQuery), &f)
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if err == nil && f.Room.Timeline.Limit != nil {
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timelineLimit = *f.Room.Timeline.Limit
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}
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} else {
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// attempt to load the filter ID
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localpart, _, err := gomatrixserverlib.SplitID('@', device.UserID)
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if err != nil {
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util.GetLogger(req.Context()).WithError(err).Error("gomatrixserverlib.SplitID failed")
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return nil, err
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}
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f, err := syncDB.GetFilter(req.Context(), localpart, filterQuery)
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if err == nil {
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timelineLimit = f.Room.Timeline.Limit
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}
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}
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}
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filter := gomatrixserverlib.DefaultEventFilter()
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filter.Limit = timelineLimit
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// TODO: Additional query params: set_presence, filter
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logger := util.GetLogger(req.Context()).WithFields(logrus.Fields{
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"user_id": device.UserID,
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"device_id": device.ID,
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"since": since,
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"timeout": timeout,
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"limit": timelineLimit,
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})
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return &types.SyncRequest{
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Context: req.Context(), //
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Log: logger, //
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Device: &device, //
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Response: types.NewResponse(), // Populated by all streams
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Filter: filter, //
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Since: since, //
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Timeout: timeout, //
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Limit: timelineLimit, //
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Rooms: make(map[string]string), // Populated by the PDU stream
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WantFullState: wantFullState, //
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}, nil
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}
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func getTimeout(timeoutMS string) time.Duration {
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if timeoutMS == "" {
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return defaultSyncTimeout
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}
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i, err := strconv.Atoi(timeoutMS)
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if err != nil {
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return defaultSyncTimeout
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}
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return time.Duration(i) * time.Millisecond
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}
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