how can i use ssl with raw sockets kotlinlang #ktor

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how can i use ssl with raw sockets?

# ktor

otakusenpai

04/24/2018, 1:14 PM

how can i use ssl with raw sockets?

✅ 1

📋 1

📝 1

otakusenpai

04/24/2018, 1:31 PM

i cant find any documentation

Deactivated User

04/24/2018, 1:33 PM

It seems it is missing. Going to add it. You have to include the

ktor-network-tls

artifact, and then call the tls method:

aSocket().tcp().connect().tls(...)

otakusenpai

04/24/2018, 1:34 PM

ok thanks

Deactivated User

04/24/2018, 1:53 PM

Tried this and seems to work:

tls_sample.kts

Copy code

#!/usr/bin/env kscript

@file:MavenRepository("ktor", "<https://kotlin.bintray.com/ktor>")
@file:DependsOn("io.ktor:ktor-network-tls:0.9.2")

import io.ktor.cio.*
import io.ktor.network.sockets.*
import io.ktor.network.tls.*
import kotlinx.coroutines.experimental.*
import kotlinx.coroutines.experimental.io.*
import java.net.*

runBlocking {
    val socket = aSocket().tcp().connect(InetSocketAddress("<http://google.com|google.com>", 443)).tls()
    val w = socket.openWriteChannel(autoFlush = false)
    w.write("GET / HTTP/1.1\r\n")
    w.write("Host: <http://google.com|google.com>\r\n")
    w.write("\r\n")
    w.flush()
    val r = socket.openReadChannel()
    println(r.readASCIILine())
}

otakusenpai

04/24/2018, 2:42 PM

Exception in thread "io-thread-2" java.lang.IllegalArgumentException: Invalid TLS record type code: 58

otakusenpai

04/24/2018, 2:43 PM

can you help with that?

Deactivated User

04/24/2018, 2:43 PM

That happens with the snippet I put? Or with your own code?

otakusenpai

04/24/2018, 2:43 PM

my code

Deactivated User

04/24/2018, 2:43 PM

Does the snippet work for you?

otakusenpai

04/24/2018, 2:43 PM

i didnt try

Deactivated User

04/24/2018, 2:43 PM

Can you try?

otakusenpai

04/24/2018, 2:43 PM

Deactivated User

04/24/2018, 2:44 PM

(Is to be sure if it is related to the server certificate, or related to your network or other thing)

Deactivated User

04/24/2018, 2:45 PM

^^ @e5l “Invalid TLS record type code: 58”

otakusenpai

04/24/2018, 2:46 PM

it gives me some errors, not sure its the code or the way i launched it

otakusenpai

04/24/2018, 2:46 PM

kotlinc ggl.kt

otakusenpai

04/24/2018, 2:46 PM

i dont play around with scripts 😛

Deactivated User

04/24/2018, 2:47 PM

the snippet uses kscript https://github.com/holgerbrandl/kscript But you can also copy the runBlocking block and put it in your main 🙂 As long as you include the required artifacts

otakusenpai

04/24/2018, 2:47 PM

yeah

Deactivated User

04/24/2018, 2:48 PM

Also would help knowing the endpoint or the server/certificate that backend uses

otakusenpai

04/24/2018, 2:50 PM

well cant ktor accept invalid certificates?

Deactivated User

04/24/2018, 2:53 PM

probably, but can provide more information for troubleshooting? are you connecting to a ktor backend? to an internet backend? a local backend written un C++ with a self-signed certificate… etc. I’m checking TLS record types: https://tools.ietf.org/html/rfc5246#section-7.2 And 58 doesn’t seems to be a valid record

e5l

04/24/2018, 2:54 PM

`Invalid TLS record type code: 58`: need some code sample. It looks like a server error

Deactivated User

04/24/2018, 2:54 PM

can you also provide the stacktrace/or part of it? there are two places in ktor with that exception

otakusenpai

04/24/2018, 2:54 PM

sure

otakusenpai

04/24/2018, 2:57 PM

its a irc server written in c probably

otakusenpai

04/24/2018, 2:57 PM

Exception in thread "io-thread-2" java.lang.IllegalArgumentException: Invalid TLS record type code: 58 at io.ktor.network.tls.TLSRecordType$Companion.byCode(TLSRecordType.kt:15) at io.ktor.network.tls.ParserKt.readTLSRecordHeader(Parser.kt:12) at io.ktor.network.tls.TLSClientSession.readTLSRecordHeader(TLSClientSession.kt:201) at io.ktor.network.tls.TLSClientSession.tlsHandshakeAndNegotiation(TLSClientSession.kt:60) at io.ktor.network.tls.TLSClientSession.negotiate(TLSClientSession.kt:46) at io.ktor.network.tls.TLSKt.tls(TLS.kt:42) at io.ktor.network.tls.TLSKt.tls$default(TLS.kt:32) at com.otakusenpai.aghora.connection.SslConnection$1.doResume(SslConnection.kt:21) at kotlin.coroutines.experimental.jvm.internal.CoroutineImpl.resume(CoroutineImpl.kt:54) at kotlinx.coroutines.experimental.DispatchedTask$DefaultImpls.run(Dispatched.kt:161) at kotlinx.coroutines.experimental.DispatchedContinuation.run(Dispatched.kt:25) at kotlinx.coroutines.experimental.EventLoopBase.processNextEvent(EventLoop.kt:147) at kotlinx.coroutines.experimental.BlockingCoroutine.joinBlocking(Builders.kt:244) at kotlinx.coroutines.experimental.BuildersKt.runBlocking(Builders.kt:185) at kotlinx.coroutines.experimental.BuildersKt.runBlocking$default(Builders.kt:175) at com.otakusenpai.aghora.connection.SslConnection.<init>(SslConnection.kt:15) at com.otakusenpai.aghora.bot.BasicBot.<init>(BasicBot.kt:23) at com.otakusenpai.aghora.MainKt.main(main.kt:37) java.lang.IllegalArgumentException: Invalid TLS record type code: 58 at io.ktor.network.tls.TLSRecordType$Companion.byCode(TLSRecordType.kt:15) at io.ktor.network.tls.ParserKt.readTLSRecordHeader(Parser.kt:12) at io.ktor.network.tls.TLSClientSession.readTLSRecordHeader(TLSClientSession.kt:201) at io.ktor.network.tls.TLSClientSession.tlsHandshakeAndNegotiation(TLSClientSession.kt:60) at io.ktor.network.tls.TLSClientSession.negotiate(TLSClientSession.kt:46) at io.ktor.network.tls.TLSKt.tls(TLS.kt:42) at io.ktor.network.tls.TLSKt.tls$default(TLS.kt:32) at com.otakusenpai.aghora.connection.SslConnection$1.doResume(SslConnection.kt:21) at kotlin.coroutines.experimental.jvm.internal.CoroutineImpl.resume(CoroutineImpl.kt:54) at kotlinx.coroutines.experimental.DispatchedTask$DefaultImpls.run(Dispatched.kt:161) at kotlinx.coroutines.experimental.DispatchedContinuation.run(Dispatched.kt:25) at kotlinx.coroutines.experimental.EventLoopBase.processNextEvent(EventLoop.kt:147) at kotlinx.coroutines.experimental.BlockingCoroutine.joinBlocking(Builders.kt:244) at kotlinx.coroutines.experimental.BuildersKt.runBlocking(Builders.kt:185) at kotlinx.coroutines.experimental.BuildersKt.runBlocking$default(Builders.kt:175) at com.otakusenpai.aghora.connection.SslConnection.<init>(SslConnection.kt:15) at com.otakusenpai.aghora.bot.BasicBot.<init>(BasicBot.kt:23) at com.otakusenpai.aghora.MainKt.main(main.kt:37) Exception in thread "main" kotlin.UninitializedPropertyAccessException: lateinit property socket has not been initialized at com.otakusenpai.aghora.connection.Connection.getSocket(Connection.kt:23) at com.otakusenpai.aghora.connection.SslConnection$1.doResume(SslConnection.kt:26) at kotlin.coroutines.experimental.jvm.internal.CoroutineImpl.resume(CoroutineImpl.kt:54) at kotlinx.coroutines.experimental.DispatchedTask$DefaultImpls.run(Dispatched.kt:161) at kotlinx.coroutines.experimental.DispatchedContinuation.run(Dispatched.kt:25) at kotlinx.coroutines.experimental.EventLoopBase.processNextEvent(EventLoop.kt:147) at kotlinx.coroutines.experimental.BlockingCoroutine.joinBlocking(Builders.kt:244) at kotlinx.coroutines.experimental.BuildersKt.runBlocking(Builders.kt:185) at kotlinx.coroutines.experimental.BuildersKt.runBlocking$default(Builders.kt:175) at com.otakusenpai.aghora.connection.SslConnection.<init>(SslConnection.kt:15) at com.otakusenpai.aghora.bot.BasicBot.<init>(BasicBot.kt:23) at com.otakusenpai.aghora.MainKt.main(main.kt:37)

Deactivated User

04/24/2018, 3:00 PM

I see. Is it a public IRC server that we can try to connect to? If it is not the case, maybe you can capture network traffic for that connection using wireshark to try to reproduce it locally

e5l

04/24/2018, 3:05 PM

Make sure that you use proper ssl port

👍 1

otakusenpai

04/24/2018, 3:06 PM

yes, chat.freenode.net

otakusenpai

04/24/2018, 3:06 PM

and i use ssl port

Deactivated User

04/24/2018, 3:08 PM

https://freenode.net/kb/answer/chat or ports 6697, 7000 and 7070 for SSL-encrypted connections.

Deactivated User

04/24/2018, 3:08 PM

going to try to connect ot one of those ports

Deactivated User

04/24/2018, 3:12 PM

@e5l

Copy code

val socket = aSocket().tcp().connect(InetSocketAddress("<http://chat.freenode.net|chat.freenode.net>", 6697)).tls()

//Exception in thread "main" Exception in thread "io-thread-2" io.ktor.network.tls.TLSException: Unsupported TLS handshake type CertificateRequest

otakusenpai

04/24/2018, 3:12 PM

Exception in thread "io-thread-2" io.ktor.network.tls.TLSException: Unsupported TLS handshake type CertificateRequest at io.ktor.network.tls.TLSClientSession.handshake(TLSClientSession.kt:308) at io.ktor.network.tls.TLSClientSession.processHandshakeMessage(TLSClientSession.kt:79) at io.ktor.network.tls.TLSClientSession.tlsHandshakeAndNegotiation(TLSClientSession.kt:64) at io.ktor.network.tls.TLSClientSession$tlsHandshakeAndNegotiation$1.doResume(TLSClientSession.kt) at kotlin.coroutines.experimental.jvm.internal.CoroutineImpl.resume(CoroutineImpl.kt:54) at kotlin.coroutines.experimental.jvm.internal.CoroutineImpl.resume(CoroutineImpl.kt:53) at kotlin.coroutines.experimental.jvm.internal.CoroutineImpl.resume(CoroutineImpl.kt:53) at kotlinx.coroutines.experimental.DispatchedTask$DefaultImpls.run(Dispatched.kt:161) at kotlinx.coroutines.experimental.io.internal.MutableDelegateContinuation.run(MutableDelegateContinuation.kt:14) at kotlinx.coroutines.experimental.EventLoopBase.processNextEvent(EventLoop.kt:147) at kotlinx.coroutines.experimental.BlockingCoroutine.joinBlocking(Builders.kt:244) at kotlinx.coroutines.experimental.BuildersKt.runBlocking(Builders.kt:185) at kotlinx.coroutines.experimental.BuildersKt.runBlocking$default(Builders.kt:175) at com.otakusenpai.aghora.connection.SslConnection.<init>(SslConnection.kt:15) at com.otakusenpai.aghora.bot.BasicBot.<init>(BasicBot.kt:23) at com.otakusenpai.aghora.MainKt.main(main.kt:37)

Deactivated User

04/24/2018, 3:14 PM

that’s a different exception 🙂 that sounds like something is missing

otakusenpai

04/24/2018, 3:14 PM

yeah, i didnt add ssl port the first time

otakusenpai

04/24/2018, 3:21 PM

hello, how can i fix that?

Deactivated User

04/24/2018, 3:24 PM

Looks like that packet is not handled, create an issue at github: https://github.com/ktorio/ktor/issues Describing the error and include how to reproduce it:

val socket = aSocket().tcp().connect(InetSocketAddress("<http://chat.freenode.net|chat.freenode.net>", 6697)).tls()

For now, connect to the unsecure version (6667 without tls), we will look at it.

otakusenpai

04/24/2018, 3:24 PM

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