dendrite/clientapi/routing/filter.go

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// Copyright 2017 Jan Christian Grünhage
//
// 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.
package routing
import (
"net/http"
"encoding/json"
"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
"github.com/matrix-org/dendrite/clientapi/auth/storage/accounts"
"github.com/matrix-org/dendrite/clientapi/httputil"
"github.com/matrix-org/dendrite/clientapi/jsonerror"
"github.com/matrix-org/gomatrix"
"github.com/matrix-org/gomatrixserverlib"
"github.com/matrix-org/util"
)
// GetFilter implements GET /_matrix/client/r0/user/{userId}/filter/{filterId}
func GetFilter(
req *http.Request, device *authtypes.Device, accountDB *accounts.Database, userID string, filterID string,
) util.JSONResponse {
if req.Method != http.MethodGet {
return util.JSONResponse{
Code: http.StatusMethodNotAllowed,
JSON: jsonerror.NotFound("Bad method"),
}
}
if userID != device.UserID {
return util.JSONResponse{
Code: http.StatusForbidden,
JSON: jsonerror.Forbidden("Cannot get filters for other users"),
}
}
localpart, _, err := gomatrixserverlib.SplitID('@', userID)
if err != nil {
return httputil.LogThenError(req, err)
}
res, err := accountDB.GetFilter(req.Context(), localpart, filterID)
if err != nil {
//TODO better error handling. This error message is *probably* right,
// but if there are obscure db errors, this will also be returned,
// even though it is not correct.
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.NotFound("No such filter"),
}
}
filter := gomatrix.Filter{}
err = json.Unmarshal(res, &filter)
if err != nil {
httputil.LogThenError(req, err)
}
return util.JSONResponse{
Code: http.StatusOK,
JSON: filter,
}
}
type filterResponse struct {
FilterID string `json:"filter_id"`
}
//PutFilter implements POST /_matrix/client/r0/user/{userId}/filter
func PutFilter(
req *http.Request, device *authtypes.Device, accountDB *accounts.Database, userID string,
) util.JSONResponse {
if req.Method != http.MethodPost {
return util.JSONResponse{
Code: http.StatusMethodNotAllowed,
JSON: jsonerror.NotFound("Bad method"),
}
}
if userID != device.UserID {
return util.JSONResponse{
Code: http.StatusForbidden,
JSON: jsonerror.Forbidden("Cannot create filters for other users"),
}
}
localpart, _, err := gomatrixserverlib.SplitID('@', userID)
if err != nil {
return httputil.LogThenError(req, err)
}
var filter gomatrix.Filter
if reqErr := httputil.UnmarshalJSONRequest(req, &filter); reqErr != nil {
return *reqErr
}
filterArray, err := json.Marshal(filter)
if err != nil {
return util.JSONResponse{
Code: http.StatusBadRequest,
JSON: jsonerror.BadJSON("Filter is malformed"),
}
}
filterID, err := accountDB.PutFilter(req.Context(), localpart, filterArray)
if err != nil {
return httputil.LogThenError(req, err)
}
return util.JSONResponse{
Code: http.StatusOK,
JSON: filterResponse{FilterID: filterID},
}
}