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fix(web): prevent fetch error when hostname is an IP address in TEE check (#672)

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Currently, teeApiBase() splits the hostname by '.' and incorrectly parses IP addresses like 127.0.0.1 or localhost into invalid URLs (e.g., http://api.0.0.1/), which causes the fetch API to throw a 'Failed to construct Request' TypeError and crashes the web UI.

This fix:
- Skips TEE checks if the hostname is an IP address or localhost.
- Wraps checkTeeStatus() and fetchTeeReport() with try...catch to gracefully handle any unforeseen fetch errors without bubbling up to the global scope.

Co-authored-by: lighterEB <[email protected]>
This commit is contained in:
adios2d6
2026-03-09 03:50:07 +00:00
committed by GitHub
co-authored by lighterEB
parent 98e9a40762
commit 652f30a826
1 changed files with 22 additions and 11 deletions
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src/channels/web/static/app.js
+22 -11
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@@ -3593,10 +3593,15 @@ let teeReportCache = null;
let teeReportLoading = false;
function teeApiBase() {
var parts = window.location.hostname.split('.');
if (parts.length < 2) return null;
var domain = parts.slice(1).join('.');
return window.location.protocol + '//api.' + domain;
var hostname = window.location.hostname;
// Skip IP addresses (IPv4 and IPv6) and localhost
if (hostname === "localhost" || /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/.test(hostname) || hostname.indexOf(":") !== -1) {
return null;
}
var parts = hostname.split(".");
if (parts.length < 2) return null;
var domain = parts.slice(1).join(".");
return window.location.protocol + "//api." + domain;
}
function teeInstanceName() {
@@ -3607,13 +3612,19 @@ function checkTeeStatus() {
var base = teeApiBase();
if (!base) return;
var name = teeInstanceName();
fetch(base + '/instances/' + encodeURIComponent(name) + '/attestation').then(function(res) {
if (!res.ok) throw new Error(res.status);
return res.json();
}).then(function(data) {
teeInfo = data;
document.getElementById('tee-shield').style.display = 'flex';
}).catch(function() {});
try {
fetch(base + '/instances/' + encodeURIComponent(name) + '/attestation').then(function(res) {
if (!res.ok) throw new Error(res.status);
return res.json();
}).then(function(data) {
teeInfo = data;
document.getElementById('tee-shield').style.display = 'flex';
}).catch(function(err) {
console.warn('Failed to fetch TEE attestation:', err);
});
} catch (e) {
console.warn("Failed to check TEE status:", e);
}
}
function fetchTeeReport() {