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fix(android): trust self-signed certs for the user's own node in WebView

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Node apps (e.g. NetBird on :8087) terminate TLS with a self-signed cert
so the dashboard gets a secure context (OIDC / window.crypto.subtle, #15).
The WebView's default onReceivedSslError CANCELs untrusted certs, so those
apps rendered blank in the companion — exactly the netbird "won't load in
the webview" report. Override onReceivedSslError in both WebViewClients
(kiosk + in-app browser) to proceed() only when the failing cert's host
matches the connected node; reject everything else (no blanket trust).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
archipelago 2026-06-25 18:13:52 -04:00
parent 89d397bb74
commit 43e700498b
1 changed files with 37 additions and 0 deletions
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37
Android/app/src/main/java/com/archipelago/app/ui/screens/WebViewScreen.kt
View File

@ -323,6 +323,26 @@ fun WebViewScreen(
} }
} }
// Node apps (e.g. NetBird) terminate TLS with a
// self-signed cert — the dashboard needs a secure
// context for OIDC/window.crypto.subtle (#15). The
// WebView default is to CANCEL untrusted certs, so
// those apps render blank. The user explicitly trusts
// their own node, so proceed for same-host certs only;
// reject anything else (don't blanket-trust the web).
override fun onReceivedSslError(
view: WebView?,
handler: android.webkit.SslErrorHandler?,
error: android.net.http.SslError?,
) {
val u = error?.url
if (u != null && isSameHost(u, serverUrl)) {
handler?.proceed()
} else {
handler?.cancel()
}
}
override fun shouldOverrideUrlLoading( override fun shouldOverrideUrlLoading(
view: WebView?, view: WebView?,
request: WebResourceRequest?, request: WebResourceRequest?,
@ -553,6 +573,23 @@ private fun InAppBrowser(
canGoForward = view?.canGoForward() == true canGoForward = view?.canGoForward() == true
} }
// Self-signed TLS on the node's apps (e.g. NetBird on
// :8087) would otherwise be cancelled by the WebView
// and render blank. Proceed for the user's own node
// (same host); reject any other untrusted cert.
override fun onReceivedSslError(
view: WebView?,
handler: android.webkit.SslErrorHandler?,
error: android.net.http.SslError?,
) {
val u = error?.url
if (u != null && isSameHost(u, serverUrl)) {
handler?.proceed()
} else {
handler?.cancel()
}
}
override fun shouldOverrideUrlLoading( override fun shouldOverrideUrlLoading(
view: WebView?, view: WebView?,
request: WebResourceRequest?, request: WebResourceRequest?,