node: Support non-ASCII usernames and passwords in proxy URLs

RELEASE_NOTES.md

@@ -3,3 +3,4 @@ v0.93.2
 - CDSI: production enclave switch to 15637fa1
 - SVR: New enclaves for 2026Q2 for staging, and configurations (but not use) for prod.
 - node: Expose SVR2-related functionality
+- node: Support non-ASCII usernames and passwords in proxy URLs

node/ts/net.ts

@@ -449,8 +449,10 @@ export class Net {
     // This does not distinguish between "https://proxy.example" and "https://@proxy.example".
     // This could be done by manually checking `url.href`.
     // But until someone complains about it, let's not worry about it.
-    const username = url.username != '' ? url.username : undefined;
-    const password = url.password != '' ? url.password : undefined;
+    const username =
+      url.username != '' ? decodeURIComponent(url.username) : undefined;
+    const password =
+      url.password != '' ? decodeURIComponent(url.password) : undefined;
 
     const host = url.hostname;
     const port = url.port != '' ? Number.parseInt(url.port, 10) : undefined;

node/ts/test/NetTest.ts

@@ -261,6 +261,28 @@ describe('chat service api', () => {
       port: undefined,
     });
 
+    // Non-ASCII username and password
+    expect(
+      Net.proxyOptionsFromUrl('schm://ユーザ:パス@host.example')
+    ).deep.equals({
+      scheme: 'schm',
+      host: 'host.example',
+      username: 'ユーザ',
+      password: 'パス',
+      port: undefined,
+    });
+    expect(
+      Net.proxyOptionsFromUrl(
+        'schm://%E3%83%A6%E3%83%BC%E3%82%B6:%E3%83%91%E3%82%B9@host.example'
+      )
+    ).deep.equals({
+      scheme: 'schm',
+      host: 'host.example',
+      username: 'ユーザ',
+      password: 'パス',
+      port: undefined,
+    });
+
     // Empty "fields" get dropped by Node's URL parser.
     expect(Net.proxyOptionsFromUrl('schm://host.example:')).deep.equals({
       scheme: 'schm',