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fix: Add basic auth support to server health checks and reconnection logic#3

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mskoryh wants to merge 1 commit intoAlaeddineMessadi:mainfrom
mskoryh:fix-remote-auth
Open

fix: Add basic auth support to server health checks and reconnection logic#3
mskoryh wants to merge 1 commit intoAlaeddineMessadi:mainfrom
mskoryh:fix-remote-auth

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@mskoryh
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@mskoryh mskoryh commented Apr 5, 2026

Description:
This PR fixes an issue where the OpenCode client couldn't connect to remote OpenCode servers protected by HTTP basic authentication. Previously, the isServerRunning() function made unauthenticated requests to the /global/health endpoint, causing it to incorrectly report the server as unhealthy when auth was required.

Issue: #4

Changes

  • Modified isServerRunning() to accept optional username and password parameters and include an Authorization header when credentials are provided
  • Updated ensureServer() and waitForHealthy() to propagate auth parameters through the server startup flow
  • Enhanced OpenCodeClient to store credentials and use them during reconnection attempts
  • Fixed the main entry point to pass auth credentials from environment variables
  • Added comprehensive tests for basic auth scenarios

Key Features

  • Backward compatible: Existing code continues to work without changes
  • Secure: Passwords are not logged and remain in memory only
  • Flexible: Supports username/password combinations or password-only with default username "opencode"
  • Full integration: Auth flows through health checks, server startup, and client reconnection

Testing

  • All existing tests pass (319 tests)
  • New tests verify basic auth header generation
  • Integration tested with remote servers requiring authentication

Fixes connectivity issues when using OPENCODE_BASE_URL with protected remote OpenCode servers.

Summary by CodeRabbit

  • New Features
    • Added optional username and password fields for server configuration
    • Health status checks and server initialization now include HTTP Basic Authentication credentials when provided

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coderabbitai bot commented Apr 5, 2026

📝 Walkthrough

Walkthrough

The changes introduce optional HTTP Basic Authentication support across client initialization and server management. Username and password credentials are now accepted by OpenCodeClientOptions, stored in OpenCodeClient, and propagated through server health checks and startup operations via ServerManagerOptions, enabling authenticated access to protected health endpoints.

Changes

Cohort / File(s) Summary
Client Initialization
src/client.ts, src/index.ts
Added username and password optional fields to OpenCodeClientOptions; extended ensureServer calls to propagate credentials during server startup and health checks.
Server Manager Auth Support
src/server-manager.ts
Extended ServerManagerOptions with optional username/password fields; updated isServerRunning() signature to accept credentials and attach Authorization: Basic ... header when password is provided (defaulting username to "opencode" if omitted); propagated parameters through waitForHealthy() and ensureServer().
Test Coverage
tests/server-manager.test.ts
Added assertions verifying Authorization header is included in health-check fetch requests; added test cases for explicit username with password, default username with password, and ensureServer health-check authorization behavior.

Estimated Code Review Effort

🎯 3 (Moderate) | ⏱️ ~25 minutes

Poem

🐰 Hop along through gates secure,
With username keys, the path is pure!
Passwords whisper, carrots gleam,
Health checks passed by auth's sweet dream,
The server knows you—welcome to the team! 🔐

🚥 Pre-merge checks | ✅ 3
✅ Passed checks (3 passed)
Check name Status Explanation
Title check ✅ Passed The title accurately describes the main change: adding basic auth support to server health checks and reconnection logic, which aligns with the primary objective of fixing connectivity to protected servers.
Docstring Coverage ✅ Passed Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Description Check ✅ Passed Check skipped - CodeRabbit’s high-level summary is enabled.

✏️ Tip: You can configure your own custom pre-merge checks in the settings.

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  • Create PR with unit tests

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Actionable comments posted: 2

🧹 Nitpick comments (1)
tests/server-manager.test.ts (1)

270-291: Add one auth regression test for the auto-start polling path.

This test validates the initial check, but not the post-spawn health polling path. Add a case where first check fails, server starts, and subsequent health polls require Authorization to pass.

🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@tests/server-manager.test.ts` around lines 270 - 291, Add a new test in
tests/server-manager.test.ts that uses ensureServer to exercise the auto-start
polling path: simulate the initial health check failing (use the existing mock
helper like mockFetchUnhealthy or a custom mock), make the spawn/start path
succeed (mock the spawn or startServer behavior), then have subsequent health
poll responses require an Authorization header to return healthy (use
mockFetchHealthy that asserts the Authorization header). Ensure the test asserts
that ensureServer ultimately returns running: true and version, and that
fetchMock calls for the post-spawn health polls include the Authorization header
in the request options (referencing ensureServer, mockFetchHealthy, and the
spawn/start mock helpers to locate code).
🤖 Prompt for all review comments with AI agents
Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@src/server-manager.ts`:
- Around line 55-70: The abort timeout (variable timeout) is not cleared if
fetch(url, { ..., signal: controller.signal }) throws, leaving timers
accumulating; wrap the fetch call in a try...finally (or ensure a finally block)
that calls clearTimeout(timeout) and optionally controller.abort() cleanup so
clearTimeout(timeout) always runs; update the block around url, controller,
timeout and the fetch call to move clearTimeout(timeout) into the finally to
guarantee the timer is cleared on success or error.
- Around line 149-154: startServer() still calls waitForHealthy() and
isServerRunning(baseUrl) without passing the new credentials, causing failures
against protected health endpoints; update startServer() (and any startup
polling path) to forward the username and password into waitForHealthy(baseUrl,
timeoutMs, username, password) and to call isServerRunning(baseUrl, username,
password) so auth is used during polling and the protected health check
succeeds.

---

Nitpick comments:
In `@tests/server-manager.test.ts`:
- Around line 270-291: Add a new test in tests/server-manager.test.ts that uses
ensureServer to exercise the auto-start polling path: simulate the initial
health check failing (use the existing mock helper like mockFetchUnhealthy or a
custom mock), make the spawn/start path succeed (mock the spawn or startServer
behavior), then have subsequent health poll responses require an Authorization
header to return healthy (use mockFetchHealthy that asserts the Authorization
header). Ensure the test asserts that ensureServer ultimately returns running:
true and version, and that fetchMock calls for the post-spawn health polls
include the Authorization header in the request options (referencing
ensureServer, mockFetchHealthy, and the spawn/start mock helpers to locate
code).
🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

  • Push a commit to this branch (recommended)
  • Create a new PR with the fixes

ℹ️ Review info
⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 38a6664f-aabf-4260-853b-cf48363c1296

📥 Commits

Reviewing files that changed from the base of the PR and between afa70c4 and 9f94cab.

📒 Files selected for processing (4)
  • src/client.ts
  • src/index.ts
  • src/server-manager.ts
  • tests/server-manager.test.ts

Comment on lines 55 to 70
const url = `${baseUrl.replace(/\/$/, "")}/global/health`;
const controller = new AbortController();
const timeout = setTimeout(() => controller.abort(), 3_000);

const headers: Record<string, string> = {};
if (password) {
const user = username ?? "opencode";
headers["Authorization"] = "Basic " + Buffer.from(`${user}:${password}`).toString("base64");
}

const res = await fetch(url, {
method: "GET",
headers,
signal: controller.signal,
});
clearTimeout(timeout);
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⚠️ Potential issue | 🟡 Minor

Clear the health-check timeout on all paths.

If fetch() throws before Line 70, the abort timer is left pending. This can accumulate timers during repeated polling.

Suggested fix
     const controller = new AbortController();
     const timeout = setTimeout(() => controller.abort(), 3_000);
@@
-    const res = await fetch(url, {
-      method: "GET",
-      headers,
-      signal: controller.signal,
-    });
-    clearTimeout(timeout);
+    let res: Response;
+    try {
+      res = await fetch(url, {
+        method: "GET",
+        headers,
+        signal: controller.signal,
+      });
+    } finally {
+      clearTimeout(timeout);
+    }
📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change
const url = `${baseUrl.replace(/\/$/, "")}/global/health`;
const controller = new AbortController();
const timeout = setTimeout(() => controller.abort(), 3_000);
const headers: Record<string, string> = {};
if (password) {
const user = username ?? "opencode";
headers["Authorization"] = "Basic " + Buffer.from(`${user}:${password}`).toString("base64");
}
const res = await fetch(url, {
method: "GET",
headers,
signal: controller.signal,
});
clearTimeout(timeout);
const url = `${baseUrl.replace(/\/$/, "")}/global/health`;
const controller = new AbortController();
const timeout = setTimeout(() => controller.abort(), 3_000);
const headers: Record<string, string> = {};
if (password) {
const user = username ?? "opencode";
headers["Authorization"] = "Basic " + Buffer.from(`${user}:${password}`).toString("base64");
}
let res: Response;
try {
res = await fetch(url, {
method: "GET",
headers,
signal: controller.signal,
});
} finally {
clearTimeout(timeout);
}
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@src/server-manager.ts` around lines 55 - 70, The abort timeout (variable
timeout) is not cleared if fetch(url, { ..., signal: controller.signal })
throws, leaving timers accumulating; wrap the fetch call in a try...finally (or
ensure a finally block) that calls clearTimeout(timeout) and optionally
controller.abort() cleanup so clearTimeout(timeout) always runs; update the
block around url, controller, timeout and the fetch call to move
clearTimeout(timeout) into the finally to guarantee the timer is cleared on
success or error.

Comment on lines +149 to +154
username?: string,
password?: string,
): Promise<boolean> {
const deadline = Date.now() + timeoutMs;
while (Date.now() < deadline) {
const { healthy } = await isServerRunning(baseUrl);
const { healthy } = await isServerRunning(baseUrl, username, password);
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⚠️ Potential issue | 🟠 Major

Auth propagation is still incomplete in startup polling path.

waitForHealthy now accepts credentials (Line 149-154), but startServer() still calls it without auth and later calls isServerRunning(baseUrl) without auth. On protected health endpoints, startup can falsely fail.

Suggested fix
 export async function startServer(
   binaryPath: string,
   baseUrl: string,
   timeoutMs: number = DEFAULT_STARTUP_TIMEOUT_MS,
+  username?: string,
+  password?: string,
 ): Promise<{ version?: string }> {
@@
   const healthy = await Promise.race([
-    waitForHealthy(baseUrl, timeoutMs),
+    waitForHealthy(baseUrl, timeoutMs, username, password),
     earlyExit.catch(() => false as const),
   ]);
@@
-  const status = await isServerRunning(baseUrl);
+  const status = await isServerRunning(baseUrl, username, password);
   return { version: status.version };
 }
@@
-  const result = await startServer(binaryPath, baseUrl, timeoutMs);
+  const result = await startServer(
+    binaryPath,
+    baseUrl,
+    timeoutMs,
+    opts.username,
+    opts.password,
+  );
🤖 Prompt for AI Agents
Verify each finding against the current code and only fix it if needed.

In `@src/server-manager.ts` around lines 149 - 154, startServer() still calls
waitForHealthy() and isServerRunning(baseUrl) without passing the new
credentials, causing failures against protected health endpoints; update
startServer() (and any startup polling path) to forward the username and
password into waitForHealthy(baseUrl, timeoutMs, username, password) and to call
isServerRunning(baseUrl, username, password) so auth is used during polling and
the protected health check succeeds.

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