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fix(mac): surface webchat load failures and preflight reachability

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This commit is contained in:
Peter Steinberger
2025-12-08 17:24:01 +01:00
parent 5dec7d534f
commit 9625d94aa0
1 changed files with 53 additions and 8 deletions
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61
apps/macos/Sources/Clawdis/WebChatWindow.swift
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@@ -12,6 +12,7 @@ final class WebChatWindowController: NSWindowController, WKNavigationDelegate {
private var tunnel: WebChatTunnel?
private var baseEndpoint: URL?
private let remotePort: Int
private var reachabilityTask: Task<Void, Never>?
init(sessionKey: String) {
webChatLogger.debug("init WebChatWindowController sessionKey=\(sessionKey, privacy: .public)")
@@ -42,6 +43,11 @@ final class WebChatWindowController: NSWindowController, WKNavigationDelegate {
@available(*, unavailable)
required init?(coder: NSCoder) { fatalError("init(coder:) is not supported") }
deinit {
self.reachabilityTask?.cancel()
self.tunnel?.terminate()
}
private func loadPlaceholder() {
let html = """
<html><body style='font-family:-apple-system;padding:24px;color:#888'>Connecting to web chat…</body></html>
@@ -63,13 +69,14 @@ final class WebChatWindowController: NSWindowController, WKNavigationDelegate {
}
let endpoint = try await self.prepareEndpoint(remotePort: self.remotePort)
self.baseEndpoint = endpoint
await MainActor.run {
var comps = URLComponents(url: endpoint.appendingPathComponent("webchat/"), resolvingAgainstBaseURL: false)
comps?.queryItems = [URLQueryItem(name: "session", value: self.sessionKey)]
if let url = comps?.url {
self.loadPage(baseURL: url)
} else {
self.showError("invalid webchat url")
self.reachabilityTask?.cancel()
self.reachabilityTask = Task { [endpoint, weak self] in
guard let self else { return }
do {
try await self.verifyReachable(endpoint: endpoint)
await MainActor.run { self.loadWebChat(baseEndpoint: endpoint) }
} catch {
await MainActor.run { self.showError(error.localizedDescription) }
}
}
} catch {
@@ -83,8 +90,36 @@ final class WebChatWindowController: NSWindowController, WKNavigationDelegate {
if CommandResolver.connectionModeIsRemote() {
return try await self.startOrRestartTunnel()
} else {
return URL(string: "http://127.0.0.1:\(remotePort)/")!
return URL(string: "http://127.0.0.1:\(remotePort)/")!
}
private func loadWebChat(baseEndpoint: URL) {
var comps = URLComponents(url: baseEndpoint.appendingPathComponent("webchat/"), resolvingAgainstBaseURL: false)
comps?.queryItems = [URLQueryItem(name: "session", value: self.sessionKey)]
guard let url = comps?.url else {
self.showError("invalid webchat url")
return
}
self.loadPage(baseURL: url)
}
private func verifyReachable(endpoint: URL) async throws {
var request = URLRequest(url: endpoint, cachePolicy: .reloadIgnoringLocalAndRemoteCacheData, timeoutInterval: 3)
request.httpMethod = "HEAD"
let sessionConfig = URLSessionConfiguration.ephemeral
sessionConfig.waitsForConnectivity = false
let session = URLSession(configuration: sessionConfig)
do {
let (_, response) = try await session.data(for: request)
if let http = response as? HTTPURLResponse {
guard (200..<500).contains(http.statusCode) else {
throw NSError(domain: "WebChat", code: http.statusCode, userInfo: [NSLocalizedDescriptionKey: "webchat returned HTTP \(http.statusCode)"])
}
}
} catch {
throw NSError(domain: "WebChat", code: 7, userInfo: [NSLocalizedDescriptionKey: "webchat unreachable: \(error.localizedDescription)"])
}
}
}
private func startOrRestartTunnel() async throws -> URL {
@@ -125,6 +160,16 @@ final class WebChatWindowController: NSWindowController, WKNavigationDelegate {
func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
webChatLogger.debug("didFinish navigation url=\(webView.url?.absoluteString ?? "nil", privacy: .public)")
}
func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {
webChatLogger.error("webchat navigation failed (provisional): \(error.localizedDescription, privacy: .public)")
self.showError(error.localizedDescription)
}
func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
webChatLogger.error("webchat navigation failed: \(error.localizedDescription, privacy: .public)")
self.showError(error.localizedDescription)
}
}
// MARK: - Manager