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Merge pull request #2648 from matrix-org/travis/fix-room-settings 

Add a bit of safety around reading events for room settings
pull/21833/head
Travis Ralston 2019-02-18 21:34:45 -07:00 committed by GitHub
parent 07f49e8ddb f46df2ddd9
commit 424de00109
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 25 additions and 5 deletions
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6
src/components/views/settings/tabs/RolesRoomSettingsTab.js
View File

@ -116,7 +116,8 @@ export default class RolesRoomSettingsTab extends React.Component {
_onPowerLevelsChanged = (value, powerLevelKey) => {
const client = MatrixClientPeg.get();
const room = client.getRoom(this.props.roomId);
let plContent = room.currentState.getStateEvents('m.room.power_levels', '').getContent() || {};
const plEvent = room.currentState.getStateEvents('m.room.power_levels', '');
let plContent = plEvent ? (plEvent.getContent() || {}) : {};
// Clone the power levels just in case
plContent = Object.assign({}, plContent);
@ -151,7 +152,8 @@ export default class RolesRoomSettingsTab extends React.Component {
const client = MatrixClientPeg.get();
const room = client.getRoom(this.props.roomId);
const plContent = room.currentState.getStateEvents('m.room.power_levels', '').getContent() || {};
const plEvent = room.currentState.getStateEvents('m.room.power_levels', '');
const plContent = plEvent ? (plEvent.getContent() || {}) : {};
const canChangeLevels = room.currentState.mayClientSendStateEvent('m.room.power_levels', client);
const powerLevelDescriptors = {

24
src/components/views/settings/tabs/SecurityRoomSettingsTab.js
View File

@ -43,13 +43,31 @@ export default class SecurityRoomSettingsTab extends React.Component {
const room = MatrixClientPeg.get().getRoom(this.props.roomId);
const state = room.currentState;
const joinRule = state.getStateEvents("m.room.join_rules", "").getContent()['join_rule'];
const guestAccess = state.getStateEvents("m.room.guest_access", "").getContent()['guest_access'];
const history = state.getStateEvents("m.room.history_visibility", "").getContent()['history_visibility'];
const joinRule = this._pullContentPropertyFromEvent(
state.getStateEvents("m.room.join_rules", ""),
'join_rule',
'invite',
);
const guestAccess = this._pullContentPropertyFromEvent(
state.getStateEvents("m.room.guest_access", ""),
'guest_access',
'forbidden',
);
const history = this._pullContentPropertyFromEvent(
state.getStateEvents("m.room.history_visibility", ""),
'history_visibility',
'shared',
);
const encrypted = MatrixClientPeg.get().isRoomEncrypted(this.props.roomId);
this.setState({joinRule, guestAccess, history, encrypted});
}
_pullContentPropertyFromEvent(event, key, defaultValue) {
if (!event || !event.getContent()) return defaultValue;
return event.getContent()[key] || defaultValue;
}
componentWillUnmount(): void {
MatrixClientPeg.get().removeListener("RoomState.events", this._onStateEvent);
}