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Wrap exception handling around all of loadSession 

The user might (probably does) have a session even if we haven't actually tried
to load it yet, so wrap the whole loadSession code in the error handler we were
using for restoring sessions so we gracefully handle exceptions that happen
before trying to restore sessions too.

Remove the catch in MatrixChat that sent you to the login screen.  This is
never the right way to handle an error condition: we should only display the
login screen if we successfully determined that the user has no session, or
they explicitly chose to blow their sessions away.
pull/21833/head
David Baker 2018-04-27 11:25:13 +01:00
parent db1401f484
commit 0323f8ed0c
3 changed files with 67 additions and 62 deletions
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120
src/Lifecycle.js
View File

@ -1,6 +1,7 @@
/*
Copyright 2015, 2016 OpenMarket Ltd
Copyright 2017 Vector Creations Ltd
Copyright 2018 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@ -65,32 +66,33 @@ import sdk from './index';
* failed.
*/
export function loadSession(opts) {
const fragmentQueryParams = opts.fragmentQueryParams || {};
let enableGuest = opts.enableGuest || false;
const guestHsUrl = opts.guestHsUrl;
const guestIsUrl = opts.guestIsUrl;
const defaultDeviceDisplayName = opts.defaultDeviceDisplayName;
return new Promise.resolve().then(() => {
const fragmentQueryParams = opts.fragmentQueryParams || {};
let enableGuest = opts.enableGuest || false;
const guestHsUrl = opts.guestHsUrl;
const guestIsUrl = opts.guestIsUrl;
const defaultDeviceDisplayName = opts.defaultDeviceDisplayName;
if (!guestHsUrl) {
console.warn("Cannot enable guest access: can't determine HS URL to use");
enableGuest = false;
}
if (!guestHsUrl) {
console.warn("Cannot enable guest access: can't determine HS URL to use");
enableGuest = false;
}
if (enableGuest &&
fragmentQueryParams.guest_user_id &&
fragmentQueryParams.guest_access_token
) {
console.log("Using guest access credentials");
return _doSetLoggedIn({
userId: fragmentQueryParams.guest_user_id,
accessToken: fragmentQueryParams.guest_access_token,
homeserverUrl: guestHsUrl,
identityServerUrl: guestIsUrl,
guest: true,
}, true).then(() => true);
}
return _restoreFromLocalStorage().then((success) => {
if (enableGuest &&
fragmentQueryParams.guest_user_id &&
fragmentQueryParams.guest_access_token
) {
console.log("Using guest access credentials");
return _doSetLoggedIn({
userId: fragmentQueryParams.guest_user_id,
accessToken: fragmentQueryParams.guest_access_token,
homeserverUrl: guestHsUrl,
identityServerUrl: guestIsUrl,
guest: true,
}, true).then(() => true);
}
return _restoreFromLocalStorage();
}).then((success) => {
if (success) {
return true;
}
@ -101,6 +103,8 @@ export function loadSession(opts) {
// fall back to login screen
return false;
}).catch((e) => {
return _handleLoadSessionFailure(e);
});
}
@ -196,43 +200,43 @@ function _registerAsGuest(hsUrl, isUrl, defaultDeviceDisplayName) {
// SessionStore to avoid bugs where the view becomes out-of-sync with
// localStorage (e.g. teamToken, isGuest etc.)
function _restoreFromLocalStorage() {
if (!localStorage) {
return Promise.resolve(false);
}
const hsUrl = localStorage.getItem("mx_hs_url");
const isUrl = localStorage.getItem("mx_is_url") || 'https://matrix.org';
const accessToken = localStorage.getItem("mx_access_token");
const userId = localStorage.getItem("mx_user_id");
const deviceId = localStorage.getItem("mx_device_id");
return Promise.resolve().then(() => {
if (!localStorage) {
return Promise.resolve(false);
}
const hsUrl = localStorage.getItem("mx_hs_url");
const isUrl = localStorage.getItem("mx_is_url") || 'https://matrix.org';
const accessToken = localStorage.getItem("mx_access_token");
const userId = localStorage.getItem("mx_user_id");
const deviceId = localStorage.getItem("mx_device_id");
let isGuest;
if (localStorage.getItem("mx_is_guest") !== null) {
isGuest = localStorage.getItem("mx_is_guest") === "true";
} else {
// legacy key name
isGuest = localStorage.getItem("matrix-is-guest") === "true";
}
let isGuest;
if (localStorage.getItem("mx_is_guest") !== null) {
isGuest = localStorage.getItem("mx_is_guest") === "true";
} else {
// legacy key name
isGuest = localStorage.getItem("matrix-is-guest") === "true";
}
if (accessToken && userId && hsUrl) {
console.log(`Restoring session for ${userId}`);
return _doSetLoggedIn({
userId: userId,
deviceId: deviceId,
accessToken: accessToken,
homeserverUrl: hsUrl,
identityServerUrl: isUrl,
guest: isGuest,
}, false).catch((e) => {
return _handleRestoreFailure(e);
}).then(() => true);
} else {
console.log("No previous session found.");
return Promise.resolve(false);
}
if (accessToken && userId && hsUrl) {
console.log(`Restoring session for ${userId}`);
return _doSetLoggedIn({
userId: userId,
deviceId: deviceId,
accessToken: accessToken,
homeserverUrl: hsUrl,
identityServerUrl: isUrl,
guest: isGuest,
}, false).then(() => true);
} else {
console.log("No previous session found.");
return Promise.resolve(false);
}
});
}
function _handleRestoreFailure(e) {
console.log("Unable to restore session", e);
function _handleLoadSessionFailure(e) {
console.log("Unable to load session", e);
const def = Promise.defer();
const SessionRestoreErrorDialog =
@ -253,7 +257,7 @@ function _handleRestoreFailure(e) {
}
// try, try again
return _restoreFromLocalStorage();
return loadSession();
});
}

8
src/components/structures/MatrixChat.js
View File

@ -1,7 +1,7 @@
/*
Copyright 2015, 2016 OpenMarket Ltd
Copyright 2017 Vector Creations Ltd
Copyright 2017 New Vector Ltd
Copyright 2017, 2018 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
@ -351,15 +351,15 @@ export default React.createClass({
guestIsUrl: this.getCurrentIsUrl(),
defaultDeviceDisplayName: this.props.defaultDeviceDisplayName,
});
}).catch((e) => {
console.error('Error attempting to load session', e);
return false;
}).then((loadedSession) => {
if (!loadedSession) {
// fall back to showing the login screen
dis.dispatch({action: "start_login"});
}
});
// Note we don't catch errors from this: we catch everything within
// loadSession as there's logic there to ask the user if they want
// to try logging out.
}).done();
},

1
src/components/views/dialogs/SessionRestoreErrorDialog.js
View File

@ -1,5 +1,6 @@
/*
Copyright 2017 Vector Creations Ltd
Copyright 2018 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.