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Implement filter POSTing and GETting. (#296)
* Implement filter POSTing and GETting. Signed-off-by: Jan Christian Grünhage <jan.christian@gruenhage.xyz> * Add missing '}' typo introduced during merge * Still trying to fix that merge... * Fix linting
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@ -0,0 +1,90 @@
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// Copyright 2017 Jan Christian Grünhage
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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 accounts
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import (
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"database/sql"
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"context"
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)
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const filterSchema = `
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-- Stores data about filters
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CREATE TABLE IF NOT EXISTS account_filter (
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-- The filter
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filter TEXT NOT NULL,
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-- The ID
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id SERIAL UNIQUE,
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-- The localpart of the Matrix user ID associated to this filter
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localpart TEXT NOT NULL,
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PRIMARY KEY(id, localpart)
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);
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CREATE INDEX IF NOT EXISTS account_filter_localpart ON account_filter(localpart);
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`
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const selectFilterSQL = "" +
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"SELECT filter FROM account_filter WHERE localpart = $1 AND id = $2"
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const insertFilterSQL = "" +
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"INSERT INTO account_filter (filter, id, localpart) VALUES ($1, DEFAULT, $2) RETURNING id"
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const findMaxIDSQL = "" +
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"SELECT MAX(id) FROM account_filter WHERE localpart = $1"
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type filterStatements struct {
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selectFilterStmt *sql.Stmt
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insertFilterStmt *sql.Stmt
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findMaxIDStmt *sql.Stmt
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}
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func (s *filterStatements) prepare(db *sql.DB) (err error) {
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_, err = db.Exec(filterSchema)
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if err != nil {
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return
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}
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if s.selectFilterStmt, err = db.Prepare(selectFilterSQL); err != nil {
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return
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}
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if s.insertFilterStmt, err = db.Prepare(insertFilterSQL); err != nil {
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return
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}
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if s.findMaxIDStmt, err = db.Prepare(findMaxIDSQL); err != nil {
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return
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}
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return
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}
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func (s *filterStatements) selectFilter(
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ctx context.Context, localpart string, filterID string,
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) (filter string, err error) {
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err = s.selectFilterStmt.QueryRowContext(ctx, localpart, filterID).Scan(&filter)
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return
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}
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func (s *filterStatements) insertFilter(
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ctx context.Context, filter string, localpart string,
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) (err error) {
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_, err = s.insertFilterStmt.ExecContext(ctx, filter, localpart)
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return
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}
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func (s *filterStatements) findMaxID(
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ctx context.Context, localpart string,
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) (id string, err error) {
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err = s.findMaxIDStmt.QueryRowContext(ctx, localpart).Scan(&id)
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return
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}
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@ -29,13 +29,14 @@ import (
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// Database represents an account database
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type Database struct {
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db *sql.DB
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db *sql.DB
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common.PartitionOffsetStatements
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accounts accountsStatements
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profiles profilesStatements
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memberships membershipStatements
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accountDatas accountDataStatements
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threepids threepidStatements
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filter filterStatements
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serverName gomatrixserverlib.ServerName
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}
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@ -70,7 +71,11 @@ func NewDatabase(dataSourceName string, serverName gomatrixserverlib.ServerName)
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if err = t.prepare(db); err != nil {
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return nil, err
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}
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return &Database{db, partitions, a, p, m, ac, t, serverName}, nil
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f := filterStatements{}
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if err = f.prepare(db); err != nil {
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return nil, err
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}
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return &Database{db, partitions, a, p, m, ac, t, f, serverName}, nil
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}
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// GetAccountByPassword returns the account associated with the given localpart and password.
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@ -315,6 +320,26 @@ func (d *Database) GetThreePIDsForLocalpart(
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return d.threepids.selectThreePIDsForLocalpart(ctx, localpart)
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}
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// GetFilter looks up the filter associated with a given local user and filter ID.
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// Returns an error if no such filter exists or if there was an error taling to the database.
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func (d *Database) GetFilter(
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ctx context.Context, localpart string, filterID string,
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) (string, error) {
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return d.filter.selectFilter(ctx, localpart, filterID)
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}
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// PutFilter puts the passed filter into the database.
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// Returns an error if something goes wrong.
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func (d *Database) PutFilter(
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ctx context.Context, localpart, filter string,
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) (string, error) {
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err := d.filter.insertFilter(ctx, filter, localpart)
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if err != nil {
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return "", err
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}
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return d.filter.findMaxID(ctx, localpart)
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}
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// CheckAccountAvailability checks if the username/localpart is already present in the database.
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// If the DB returns sql.ErrNoRows the Localpart isn't taken.
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func (d *Database) CheckAccountAvailability(ctx context.Context, localpart string) (bool, error) {
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@ -0,0 +1,72 @@
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// Copyright 2017 Jan Christian Grünhage
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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 readers
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import (
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"net/http"
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"encoding/json"
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"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
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"github.com/matrix-org/dendrite/clientapi/auth/storage/accounts"
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"github.com/matrix-org/dendrite/clientapi/httputil"
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"github.com/matrix-org/dendrite/clientapi/jsonerror"
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"github.com/matrix-org/gomatrix"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/util"
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)
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// GetFilter implements GET /_matrix/client/r0/user/{userId}/filter/{filterId}
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func GetFilter(
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req *http.Request, device *authtypes.Device, accountDB *accounts.Database, userID string, filterID string,
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) util.JSONResponse {
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if req.Method != http.MethodGet {
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return util.JSONResponse{
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Code: 405,
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JSON: jsonerror.NotFound("Bad method"),
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}
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}
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if userID != device.UserID {
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return util.JSONResponse{
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Code: 403,
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JSON: jsonerror.Forbidden("Cannot get filters for other users"),
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}
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}
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localpart, _, err := gomatrixserverlib.SplitID('@', userID)
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if err != nil {
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return httputil.LogThenError(req, err)
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}
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res, err := accountDB.GetFilter(req.Context(), localpart, filterID)
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if err != nil {
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//TODO better error handling. This error message is *probably* right,
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// but if there are obscure db errors, this will also be returned,
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// even though it is not correct.
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return util.JSONResponse{
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Code: 400,
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JSON: jsonerror.NotFound("No such filter"),
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}
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}
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filter := gomatrix.Filter{}
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err = json.Unmarshal([]byte(res), &filter)
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if err != nil {
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httputil.LogThenError(req, err)
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}
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return util.JSONResponse{
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Code: 200,
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JSON: filter,
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}
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}
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@ -189,23 +189,18 @@ func Setup(
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}),
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).Methods("GET")
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r0mux.Handle("/user/{userID}/filter",
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common.MakeExternalAPI("make_filter", func(req *http.Request) util.JSONResponse {
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// TODO: Persist filter and return filter ID
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return util.JSONResponse{
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Code: 200,
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JSON: struct{}{},
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}
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r0mux.Handle("/user/{userId}/filter",
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common.MakeAuthAPI("put_filter", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
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vars := mux.Vars(req)
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return writers.PutFilter(req, device, accountDB, vars["userId"])
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}),
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).Methods("POST", "OPTIONS")
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r0mux.Handle("/user/{userID}/filter/{filterID}",
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common.MakeExternalAPI("filter", func(req *http.Request) util.JSONResponse {
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// TODO: Retrieve filter based on ID
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return util.JSONResponse{
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Code: 200,
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JSON: struct{}{},
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}
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r0mux.Handle("/user/{userId}/filter/{filterId}",
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common.MakeAuthAPI("get_filter", deviceDB, func(req *http.Request, device *authtypes.Device) util.JSONResponse {
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vars := mux.Vars(req)
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return readers.GetFilter(req, device, accountDB, vars["userId"], vars["filterId"])
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}),
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).Methods("GET")
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@ -0,0 +1,80 @@
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// Copyright 2017 Jan Christian Grünhage
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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 writers
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import (
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"net/http"
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"github.com/matrix-org/dendrite/clientapi/auth/storage/accounts"
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"github.com/matrix-org/dendrite/clientapi/auth/authtypes"
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"github.com/matrix-org/util"
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"github.com/matrix-org/dendrite/clientapi/jsonerror"
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"github.com/matrix-org/gomatrix"
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"github.com/matrix-org/gomatrixserverlib"
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"github.com/matrix-org/dendrite/clientapi/httputil"
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"encoding/json"
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)
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type filterResponse struct {
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FilterID string `json:"filter_id"`
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}
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//PutFilter implements POST /_matrix/client/r0/user/{userId}/filter
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func PutFilter(
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req *http.Request, device *authtypes.Device, accountDB *accounts.Database, userID string,
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) util.JSONResponse {
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if req.Method != "POST" {
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return util.JSONResponse{
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Code: 405,
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JSON: jsonerror.NotFound("Bad method"),
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}
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}
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if userID != device.UserID {
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return util.JSONResponse{
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Code: 403,
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JSON: jsonerror.Forbidden("Cannot create filters for other users"),
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}
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}
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localpart, _, err := gomatrixserverlib.SplitID('@', userID)
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if err != nil {
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return httputil.LogThenError(req, err)
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}
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var filter gomatrix.Filter
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if reqErr := httputil.UnmarshalJSONRequest(req, &filter); reqErr != nil {
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return *reqErr
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}
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filterArray, err := json.Marshal(filter)
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if err != nil {
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return util.JSONResponse{
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Code: 400,
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JSON: jsonerror.BadJSON("Filter is malformed"),
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}
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}
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filterID, err := accountDB.PutFilter(req.Context(), localpart, string(filterArray))
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if err != nil {
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return httputil.LogThenError(req, err)
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}
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return util.JSONResponse{
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Code: 200,
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JSON: filterResponse{FilterID: filterID},
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}
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}
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