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Verify individual messages via cross-signing

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Fixes #11880
This commit is contained in:
Zoe 2020-01-20 15:16:41 +00:00
parent a984f9acf3
commit f77eb07849
3 changed files with 61 additions and 12 deletions
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51
src/components/views/rooms/EventTile.js
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@ -235,6 +235,7 @@ export default createReactClass({
this._suppressReadReceiptAnimation = false;
const client = this.context;
client.on("deviceVerificationChanged", this.onDeviceVerificationChanged);
client.on("userTrustStatusChanged", this.onUserVerificationChanged);
this.props.mxEvent.on("Event.decrypted", this._onDecrypted);
if (this.props.showReactions) {
this.props.mxEvent.on("Event.relationsCreated", this._onReactionsCreated);
@ -260,6 +261,7 @@ export default createReactClass({
componentWillUnmount: function() {
const client = this.context;
client.removeListener("deviceVerificationChanged", this.onDeviceVerificationChanged);
client.removeListener("userTrustStatusChanged", this.onUserVerificationChanged);
this.props.mxEvent.removeListener("Event.decrypted", this._onDecrypted);
if (this.props.showReactions) {
this.props.mxEvent.removeListener("Event.relationsCreated", this._onReactionsCreated);
@ -282,18 +284,42 @@ export default createReactClass({
}
},
onUserVerificationChanged: function(userId, _trustStatus) {
if (userId === this.props.mxEvent.getSender()) {
this._verifyEvent(this.props.mxEvent);
}
},
_verifyEvent: async function(mxEvent) {
if (!mxEvent.isEncrypted()) {
return;
}
// If we directly trust the device, short-circuit here
const verified = await this.context.isEventSenderVerified(mxEvent);
if (verified) {
this.setState({
verified: "verified"
}, () => {
// Decryption may have caused a change in size
this.props.onHeightChanged();
});
return;
}
const eventSenderTrust = await this.context.checkEventSenderTrust(mxEvent);
if (!eventSenderTrust) {
// We cannot find the device. Instead, we have to verify the user.
const userTrust = await this.context.checkUserTrust(mxEvent.getSender());
this.setState({
verified: userTrust.isVerified() ? "user-verified": "warning",
}, this.props.onHeightChanged); // Decryption may have cause a change in size
return;
}
this.setState({
verified: verified,
}, () => {
// Decryption may have caused a change in size
this.props.onHeightChanged();
});
verified: eventSenderTrust.isVerified() ? "verified" : "warning",
}, this.props.onHeightChanged); // Decryption may have caused a change in size
},
_propsEqual: function(objA, objB) {
@ -473,8 +499,10 @@ export default createReactClass({
// event is encrypted, display padlock corresponding to whether or not it is verified
if (ev.isEncrypted()) {
if (this.state.verified) {
if (this.state.verified === "verified") {
return; // no icon for verified
} else if (this.state.verified === "user-verified") {
return (<E2ePadlockUserVerified />);
} else {
return (<E2ePadlockUnverified />);
}
@ -604,8 +632,9 @@ export default createReactClass({
mx_EventTile_last: this.props.last,
mx_EventTile_contextual: this.props.contextual,
mx_EventTile_actionBarFocused: this.state.actionBarFocused,
mx_EventTile_verified: !isBubbleMessage && this.state.verified === true,
mx_EventTile_unverified: !isBubbleMessage && this.state.verified === false,
mx_EventTile_verified: !isBubbleMessage && this.state.verified === "verified",
mx_EventTile_unverified: !isBubbleMessage && this.state.verified === "warning",
mx_EventTile_userVerified: !isBubbleMessage && this.state.verified === "user-verified",
mx_EventTile_bad: isEncryptionFailure,
mx_EventTile_emote: msgtype === 'm.emote',
mx_EventTile_redacted: isRedacted,
@ -901,6 +930,12 @@ function E2ePadlockUnencrypted(props) {
);
}
function E2ePadlockUserVerified(props) {
return (
<E2ePadlock title={_t("Encrypted by a deleted device")} icon="userVerified" {...props} />
);
}
class E2ePadlock extends React.Component {
static propTypes = {
icon: PropTypes.string.isRequired,