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I played today a bit more with your library and build a DoH client (in Kotlin) on top.
class DohResult(query: DnsMessage, data: ByteArray?) :
DnsQueryResult(QueryMethod.tcp, query, DnsMessage(data))
class DohResolver : DnsClient() {
override fun query(queryBuilder: DnsMessage.Builder): DnsQueryResult {
val q = queryBuilder.setId(0).build()
val output = ByteArrayOutputStream()
q.writeTo(output, false)
val client = OkHttpClient()
val query = Base64.encodeToString(output.toByteArray()).trimEnd('=')
val request = Request.Builder()
.url("https://dns.google/dns-query?dns=$query")
.header("Content-Type", "application/dns-message")
.build()
val result = client.newCall(request).execute()
return DohResult(q, result.body?.bytes())
}
}
@Test
fun doh() {
println(DohResolver().query(Question("github.com", Record.TYPE.MX)))
}Are you interested in a PR? I would improve the code before. Just wondering if this could be interested for you at all.
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