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Display a red box of anger for config syntax errors

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Fixes https://github.com/vector-im/riot-web/issues/9519
This commit is contained in:
Travis Ralston 2019-06-27 11:47:29 -06:00
parent 2111db73a7
commit 67664365bd
3 changed files with 49 additions and 20 deletions
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4
src/i18n/strings/en_EN.json
View file

@ -1,6 +1,8 @@
{
"Unexpected error preparing the app. See console for details.": "Unexpected error preparing the app. See console for details.",
"Your Riot configuration has invalid JSON in it. Please correct the problem and reload the page. The message from the parser is: %(message)s": "Your Riot configuration has invalid JSON in it. Please correct the problem and reload the page. The message from the parser is: %(message)s",
"Invalid JSON": "Invalid JSON",
"Your Riot is misconfigured": "Your Riot is misconfigured",
"Unexpected error preparing the app. See console for details.": "Unexpected error preparing the app. See console for details.",
"Invalid configuration: can only specify one of default_server_config, default_server_name, or default_hs_url.": "Invalid configuration: can only specify one of default_server_config, default_server_name, or default_hs_url.",
"Invalid configuration: no default server specified.": "Invalid configuration: no default server specified.",
"Riot Desktop on %(platformName)s": "Riot Desktop on %(platformName)s",

42
src/vector/getconfig.js
View file

@ -39,28 +39,32 @@ function getConfig(configJsonFilename) {
request(
{ method: "GET", url: configJsonFilename },
(err, response, body) => {
if (err || response.status < 200 || response.status >= 300) {
// Lack of a config isn't an error, we should
// just use the defaults.
// Also treat a blank config as no config, assuming
// the status code is 0, because we don't get 404s
// from file: URIs so this is the only way we can
// not fail if the file doesn't exist when loading
// from a file:// URI.
if (response) {
if (response.status == 404 || (response.status == 0 && body == '')) {
resolve({});
try {
if (err || response.status < 200 || response.status >= 300) {
// Lack of a config isn't an error, we should
// just use the defaults.
// Also treat a blank config as no config, assuming
// the status code is 0, because we don't get 404s
// from file: URIs so this is the only way we can
// not fail if the file doesn't exist when loading
// from a file:// URI.
if (response) {
if (response.status == 404 || (response.status == 0 && body == '')) {
resolve({});
}
}
reject({err: err, response: response});
return;
}
reject({err: err, response: response});
return;
}
// We parse the JSON ourselves rather than use the JSON
// parameter, since this throws a parse error on empty
// which breaks if there's no config.json and we're
// loading from the filesystem (see above).
resolve(JSON.parse(body));
// We parse the JSON ourselves rather than use the JSON
// parameter, since this throws a parse error on empty
// which breaks if there's no config.json and we're
// loading from the filesystem (see above).
resolve(JSON.parse(body));
} catch (e) {
reject({err: e});
}
},
);
});

23
src/vector/index.js
View file

@ -222,10 +222,17 @@ async function loadApp() {
let configJson;
let configError;
let configSyntaxError = false;
try {
configJson = await platform.getConfig();
} catch (e) {
configError = e;
if (e && e.err && e.err instanceof SyntaxError) {
console.error("SyntaxError loading config:", e);
configSyntaxError = true;
configJson = {}; // to prevent errors between here and loading CSS for the error box
}
}
// XXX: We call this twice, once here and once in MatrixChat as a prop. We call it here to ensure
@ -295,6 +302,22 @@ async function loadApp() {
}
}
// Now that we've loaded the theme (CSS), display the config syntax error if needed.
if (configSyntaxError) {
const errorMessage = _t(
"Your Riot configuration has invalid JSON in it. Please correct the problem and reload the page. " +
"The message from the parser is: %(message)s",
{message: configError.err.message || _t("Invalid JSON")},
);
const GenericErrorPage = sdk.getComponent("structures.GenericErrorPage");
window.matrixChat = ReactDOM.render(
<GenericErrorPage message={errorMessage} title={_t("Your Riot is misconfigured")} />,
document.getElementById('matrixchat'),
);
return;
}
const validBrowser = checkBrowserFeatures([
"displaytable", "flexbox", "es5object", "es5function", "localstorage",
"objectfit", "indexeddb", "webworkers",