unsandbox.com
Anonymous remote code, compile, & execution API for humans & machine learning agents.
Docs 📚 View Pricing →
Kotlin
UN CLI
un.kt
Usage
# Run this implementation to execute a Python script
kotlinc -script cli/inception/un.kt test/fib.py test/fib.py
Source Code 📄
// PUBLIC DOMAIN - NO LICENSE, NO WARRANTY
//
// This is free public domain software for the public good of a permacomputer hosted
// at permacomputer.com - an always-on computer by the people, for the people. One
// which is durable, easy to repair, and distributed like tap water for machine
// learning intelligence.
//
// The permacomputer is community-owned infrastructure optimized around four values:
//
// TRUTH - First principles, math & science, open source code freely distributed
// FREEDOM - Voluntary partnerships, freedom from tyranny & corporate control
// HARMONY - Minimal waste, self-renewing systems with diverse thriving connections
// LOVE - Be yourself without hurting others, cooperation through natural law
//
// This software contributes to that vision by enabling code execution across 42+
// programming languages through a unified interface, accessible to all. Code is
// seeds to sprout on any abandoned technology.
//
// Learn more: https://www.permacomputer.com
//
// Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
// software, either in source code form or as a compiled binary, for any purpose,
// commercial or non-commercial, and by any means.
//
// NO WARRANTY. THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.
//
// That said, our permacomputer's digital membrane stratum continuously runs unit,
// integration, and functional tests on all of it's own software - with our
// permacomputer monitoring itself, repairing itself, with minimal human in the
// loop guidance. Our agents do their best.
//
// Copyright 2025 TimeHexOn & foxhop & russell@unturf
// https://www.timehexon.com
// https://www.foxhop.net
// https://www.unturf.com/software
// un.kt - Unsandbox CLI Client (Kotlin Implementation)
// Compile: kotlinc un.kt -include-runtime -d un.jar
// Run: java -jar un.jar [options] <source_file>
// Requires: UNSANDBOX_API_KEY environment variable
import java.io.File
import java.net.HttpURLConnection
import java.net.URL
import java.util.Base64
import kotlin.system.exitProcess
val API_BASE = "https://api.unsandbox.com"
val BLUE = "\u001B[34m"
val RED = "\u001B[31m"
val GREEN = "\u001B[32m"
val YELLOW = "\u001B[33m"
val RESET = "\u001B[0m"
val EXT_MAP = mapOf(
".py" to "python", ".js" to "javascript", ".ts" to "typescript",
".rb" to "ruby", ".php" to "php", ".pl" to "perl", ".lua" to "lua",
".sh" to "bash", ".go" to "go", ".rs" to "rust", ".c" to "c",
".cpp" to "cpp", ".cc" to "cpp", ".cxx" to "cpp",
".java" to "java", ".kt" to "kotlin", ".cs" to "csharp", ".fs" to "fsharp",
".hs" to "haskell", ".ml" to "ocaml", ".clj" to "clojure", ".scm" to "scheme",
".lisp" to "commonlisp", ".erl" to "erlang", ".ex" to "elixir", ".exs" to "elixir",
".jl" to "julia", ".r" to "r", ".R" to "r", ".cr" to "crystal",
".d" to "d", ".nim" to "nim", ".zig" to "zig", ".v" to "v",
".dart" to "dart", ".groovy" to "groovy", ".scala" to "scala",
".f90" to "fortran", ".f95" to "fortran", ".cob" to "cobol",
".pro" to "prolog", ".forth" to "forth", ".4th" to "forth",
".tcl" to "tcl", ".raku" to "raku", ".m" to "objc"
)
data class Args(
var command: String? = null,
var sourceFile: String? = null,
var apiKey: String? = null,
var network: String? = null,
var vcpu: Int = 0,
val env: MutableList<String> = mutableListOf(),
val files: MutableList<String> = mutableListOf(),
var artifacts: Boolean = false,
var outputDir: String? = null,
var sessionList: Boolean = false,
var sessionShell: String? = null,
var sessionKill: String? = null,
var serviceList: Boolean = false,
var serviceName: String? = null,
var servicePorts: String? = null,
var serviceType: String? = null,
var serviceBootstrap: String? = null,
var serviceInfo: String? = null,
var serviceLogs: String? = null,
var serviceTail: String? = null,
var serviceSleep: String? = null,
var serviceWake: String? = null,
var serviceDestroy: String? = null
)
fun main(args: Array<String>) {
try {
val parsedArgs = parseArgs(args)
when (parsedArgs.command) {
"session" -> cmdSession(parsedArgs)
"service" -> cmdService(parsedArgs)
else -> if (parsedArgs.sourceFile != null) {
cmdExecute(parsedArgs)
} else {
printHelp()
exitProcess(1)
}
}
} catch (e: Exception) {
System.err.println("${RED}Error: ${e.message}${RESET}")
exitProcess(1)
}
}
fun cmdExecute(args: Args) {
val apiKey = getApiKey(args.apiKey)
val code = File(args.sourceFile!!).readText()
val language = detectLanguage(args.sourceFile!!)
val payload = mutableMapOf<String, Any>(
"language" to language,
"code" to code
)
if (args.env.isNotEmpty()) {
val envVars = mutableMapOf<String, String>()
for (e in args.env) {
val parts = e.split("=", limit = 2)
if (parts.size == 2) {
envVars[parts[0]] = parts[1]
}
}
if (envVars.isNotEmpty()) {
payload["env"] = envVars
}
}
if (args.files.isNotEmpty()) {
val inputFiles = mutableListOf<Map<String, String>>()
for (filepath in args.files) {
val content = File(filepath).readBytes()
inputFiles.add(mapOf(
"filename" to File(filepath).name,
"content_base64" to Base64.getEncoder().encodeToString(content)
))
}
payload["input_files"] = inputFiles
}
if (args.artifacts) {
payload["return_artifacts"] = true
}
if (args.network != null) {
payload["network"] = args.network!!
}
if (args.vcpu > 0) {
payload["vcpu"] = args.vcpu
}
val result = apiRequest("/execute", "POST", payload, apiKey)
val stdout = result["stdout"] as? String
val stderr = result["stderr"] as? String
if (!stdout.isNullOrEmpty()) {
print("$BLUE$stdout$RESET")
}
if (!stderr.isNullOrEmpty()) {
System.err.print("$RED$stderr$RESET")
}
if (args.artifacts && result.containsKey("artifacts")) {
@Suppress("UNCHECKED_CAST")
val artifacts = result["artifacts"] as? List<Map<String, String>>
val outDir = args.outputDir ?: "."
File(outDir).mkdirs()
artifacts?.forEach { artifact ->
val filename = artifact["filename"] ?: "artifact"
val content = Base64.getDecoder().decode(artifact["content_base64"])
val file = File(outDir, filename)
file.writeBytes(content)
file.setExecutable(true)
System.err.println("${GREEN}Saved: ${file.path}${RESET}")
}
}
val exitCode = (result["exit_code"] as? Number)?.toInt() ?: 0
exitProcess(exitCode)
}
fun cmdSession(args: Args) {
val apiKey = getApiKey(args.apiKey)
if (args.sessionList) {
val result = apiRequest("/sessions", "GET", null, apiKey)
@Suppress("UNCHECKED_CAST")
val sessions = result["sessions"] as? List<Map<String, Any>>
if (sessions.isNullOrEmpty()) {
println("No active sessions")
} else {
println("%-40s %-10s %-10s %s".format("ID", "Shell", "Status", "Created"))
for (s in sessions) {
println("%-40s %-10s %-10s %s".format(
s["id"] ?: "N/A",
s["shell"] ?: "N/A",
s["status"] ?: "N/A",
s["created_at"] ?: "N/A"
))
}
}
return
}
if (args.sessionKill != null) {
apiRequest("/sessions/${args.sessionKill}", "DELETE", null, apiKey)
println("${GREEN}Session terminated: ${args.sessionKill}${RESET}")
return
}
val payload = mutableMapOf<String, Any>(
"shell" to (args.sessionShell ?: "bash")
)
if (args.network != null) {
payload["network"] = args.network!!
}
if (args.vcpu > 0) {
payload["vcpu"] = args.vcpu
}
println("${YELLOW}Creating session...${RESET}")
val result = apiRequest("/sessions", "POST", payload, apiKey)
println("${GREEN}Session created: ${result["id"] ?: "N/A"}${RESET}")
println("${YELLOW}(Interactive sessions require WebSocket - use un2 for full support)${RESET}")
}
fun cmdService(args: Args) {
val apiKey = getApiKey(args.apiKey)
if (args.serviceList) {
val result = apiRequest("/services", "GET", null, apiKey)
@Suppress("UNCHECKED_CAST")
val services = result["services"] as? List<Map<String, Any>>
if (services.isNullOrEmpty()) {
println("No services")
} else {
println("%-20s %-15s %-10s %-15s %s".format("ID", "Name", "Status", "Ports", "Domains"))
for (s in services) {
@Suppress("UNCHECKED_CAST")
val ports = (s["ports"] as? List<Int>)?.joinToString(",") ?: ""
@Suppress("UNCHECKED_CAST")
val domains = (s["domains"] as? List<String>)?.joinToString(",") ?: ""
println("%-20s %-15s %-10s %-15s %s".format(
s["id"] ?: "N/A",
s["name"] ?: "N/A",
s["status"] ?: "N/A",
ports, domains
))
}
}
return
}
if (args.serviceInfo != null) {
val result = apiRequest("/services/${args.serviceInfo}", "GET", null, apiKey)
println(toJson(result))
return
}
if (args.serviceLogs != null) {
val result = apiRequest("/services/${args.serviceLogs}/logs", "GET", null, apiKey)
println(result["logs"] ?: "")
return
}
if (args.serviceTail != null) {
val result = apiRequest("/services/${args.serviceTail}/logs?lines=9000", "GET", null, apiKey)
println(result["logs"] ?: "")
return
}
if (args.serviceSleep != null) {
apiRequest("/services/${args.serviceSleep}/sleep", "POST", null, apiKey)
println("${GREEN}Service sleeping: ${args.serviceSleep}${RESET}")
return
}
if (args.serviceWake != null) {
apiRequest("/services/${args.serviceWake}/wake", "POST", null, apiKey)
println("${GREEN}Service waking: ${args.serviceWake}${RESET}")
return
}
if (args.serviceDestroy != null) {
apiRequest("/services/${args.serviceDestroy}", "DELETE", null, apiKey)
println("${GREEN}Service destroyed: ${args.serviceDestroy}${RESET}")
return
}
if (args.serviceName != null) {
val payload = mutableMapOf<String, Any>("name" to args.serviceName!!)
if (args.servicePorts != null) {
payload["ports"] = args.servicePorts!!.split(",").map { it.trim().toInt() }
}
if (args.serviceType != null) {
payload["service_type"] = args.serviceType!!
}
if (args.serviceBootstrap != null) {
payload["bootstrap"] = args.serviceBootstrap!!
}
if (args.network != null) {
payload["network"] = args.network!!
}
if (args.vcpu > 0) {
payload["vcpu"] = args.vcpu
}
val result = apiRequest("/services", "POST", payload, apiKey)
println("${GREEN}Service created: ${result["id"] ?: "N/A"}${RESET}")
println("Name: ${result["name"] ?: "N/A"}")
if (result.containsKey("url")) {
println("URL: ${result["url"]}")
}
return
}
System.err.println("${RED}Error: Specify --name to create a service, or use --list, --info, etc.${RESET}")
exitProcess(1)
}
fun getApiKey(argsKey: String?): String {
val key = argsKey ?: System.getenv("UNSANDBOX_API_KEY")
if (key.isNullOrEmpty()) {
System.err.println("${RED}Error: UNSANDBOX_API_KEY not set${RESET}")
exitProcess(1)
}
return key
}
fun detectLanguage(filename: String): String {
val ext = filename.substringAfterLast('.', "")
if (ext.isEmpty()) {
throw RuntimeException("Cannot detect language: no file extension")
}
return EXT_MAP[".$ext"] ?: throw RuntimeException("Unsupported file extension: .$ext")
}
fun apiRequest(endpoint: String, method: String, data: Map<String, Any>?, apiKey: String): Map<String, Any> {
val url = URL(API_BASE + endpoint)
val connection = url.openConnection() as HttpURLConnection
connection.requestMethod = method
connection.setRequestProperty("Authorization", "Bearer $apiKey")
connection.setRequestProperty("Content-Type", "application/json")
connection.connectTimeout = 30000
connection.readTimeout = 300000
if (data != null) {
connection.doOutput = true
val json = toJson(data)
connection.outputStream.use { it.write(json.toByteArray()) }
}
if (connection.responseCode !in 200..299) {
val error = connection.errorStream?.bufferedReader()?.readText() ?: ""
throw RuntimeException("HTTP ${connection.responseCode} - $error")
}
val response = connection.inputStream.bufferedReader().readText()
return parseJson(response)
}
fun toJson(obj: Any?): String = when (obj) {
null -> "null"
is String -> "\"${obj.replace("\\", "\\\\").replace("\"", "\\\"").replace("\n", "\\n").replace("\r", "\\r").replace("\t", "\\t")}\""
is Number -> obj.toString()
is Boolean -> obj.toString()
is Map<*, *> -> {
val entries = obj.entries.joinToString(",") { (k, v) ->
"\"$k\":${toJson(v)}"
}
"{$entries}"
}
is List<*> -> {
val items = obj.joinToString(",") { toJson(it) }
"[$items]"
}
else -> toJson(obj.toString())
}
fun parseJson(json: String): Map<String, Any> {
val trimmed = json.trim()
if (!trimmed.startsWith("{")) return emptyMap()
val result = mutableMapOf<String, Any>()
var i = 1
while (i < trimmed.length) {
while (i < trimmed.length && trimmed[i].isWhitespace()) i++
if (trimmed[i] == '}') break
if (trimmed[i] == '"') {
val keyStart = ++i
while (i < trimmed.length && trimmed[i] != '"') {
if (trimmed[i] == '\\') i++
i++
}
val key = trimmed.substring(keyStart, i).replace("\\\"", "\"").replace("\\\\", "\\")
i++
while (i < trimmed.length && (trimmed[i].isWhitespace() || trimmed[i] == ':')) i++
val (value, endIdx) = parseJsonValue(trimmed, i)
result[key] = value
i = endIdx
while (i < trimmed.length && (trimmed[i].isWhitespace() || trimmed[i] == ',')) i++
} else {
i++
}
}
return result
}
fun parseJsonValue(json: String, start: Int): Pair<Any, Int> {
var i = start
while (i < json.length && json[i].isWhitespace()) i++
return when {
json[i] == '"' -> {
i++
val sb = StringBuilder()
var escaped = false
while (i < json.length) {
val c = json[i]
when {
escaped -> {
when (c) {
'n' -> sb.append('\n')
'r' -> sb.append('\r')
't' -> sb.append('\t')
'"' -> sb.append('"')
'\\' -> sb.append('\\')
else -> sb.append(c)
}
escaped = false
}
c == '\\' -> escaped = true
c == '"' -> return Pair(sb.toString(), i + 1)
else -> sb.append(c)
}
i++
}
Pair(sb.toString(), i)
}
json[i] == '{' -> {
var depth = 1
val objStart = i++
while (i < json.length && depth > 0) {
if (json[i] == '{') depth++
else if (json[i] == '}') depth--
i++
}
Pair(parseJson(json.substring(objStart, i)), i)
}
json[i] == '[' -> {
val list = mutableListOf<Any>()
i++
while (i < json.length) {
while (i < json.length && json[i].isWhitespace()) i++
if (json[i] == ']') {
i++
break
}
val (item, endIdx) = parseJsonValue(json, i)
list.add(item)
i = endIdx
while (i < json.length && (json[i].isWhitespace() || json[i] == ',')) i++
}
Pair(list, i)
}
json[i].isDigit() || json[i] == '-' -> {
val numStart = i
while (i < json.length && (json[i].isDigit() || json[i] == '.' || json[i] == '-')) i++
val num = json.substring(numStart, i)
Pair(if (num.contains(".")) num.toDouble() else num.toInt(), i)
}
json.startsWith("true", i) -> Pair(true, i + 4)
json.startsWith("false", i) -> Pair(false, i + 5)
json.startsWith("null", i) -> Pair("null", i + 4)
else -> Pair("null", i)
}
}
fun parseArgs(args: Array<String>): Args {
val result = Args()
var i = 0
while (i < args.size) {
when (args[i]) {
"session" -> result.command = "session"
"service" -> result.command = "service"
"-k", "--api-key" -> result.apiKey = args[++i]
"-n", "--network" -> result.network = args[++i]
"-v", "--vcpu" -> result.vcpu = args[++i].toInt()
"-e", "--env" -> result.env.add(args[++i])
"-f", "--files" -> result.files.add(args[++i])
"-a", "--artifacts" -> result.artifacts = true
"-o", "--output-dir" -> result.outputDir = args[++i]
"-l", "--list" -> {
when (result.command) {
"session" -> result.sessionList = true
"service" -> result.serviceList = true
}
}
"-s", "--shell" -> result.sessionShell = args[++i]
"--kill" -> result.sessionKill = args[++i]
"--name" -> result.serviceName = args[++i]
"--ports" -> result.servicePorts = args[++i]
"--type" -> result.serviceType = args[++i]
"--bootstrap" -> result.serviceBootstrap = args[++i]
"--info" -> result.serviceInfo = args[++i]
"--logs" -> result.serviceLogs = args[++i]
"--tail" -> result.serviceTail = args[++i]
"--sleep" -> result.serviceSleep = args[++i]
"--wake" -> result.serviceWake = args[++i]
"--destroy" -> result.serviceDestroy = args[++i]
else -> if (!args[i].startsWith("-")) result.sourceFile = args[i]
}
i++
}
return result
}
fun printHelp() {
println("""
Usage: kotlin UnKt [options] <source_file>
kotlin UnKt session [options]
kotlin UnKt service [options]
Execute options:
-e KEY=VALUE Set environment variable
-f FILE Add input file
-a Return artifacts
-o DIR Output directory for artifacts
-n MODE Network mode (zerotrust/semitrusted)
-v N vCPU count (1-8)
-k KEY API key
Session options:
--list List active sessions
--shell NAME Shell/REPL to use
--kill ID Terminate session
Service options:
--list List services
--name NAME Service name
--ports PORTS Comma-separated ports
--type TYPE Service type (minecraft/mumble/teamspeak/source/tcp/udp)
--bootstrap CMD Bootstrap command
--info ID Get service details
--logs ID Get all logs
--tail ID Get last 9000 lines
--sleep ID Freeze service
--wake ID Unfreeze service
--destroy ID Destroy service
""".trimIndent())
}
License
PUBLIC DOMAIN - NO LICENSE, NO WARRANTY
This is free public domain software for the public good of a permacomputer hosted
at permacomputer.com - an always-on computer by the people, for the people. One
that is durable, easy to repair, and distributed like tap water for machine
learning intelligence.
The permacomputer is community-owned infrastructure optimized around four values:
TRUTH - First principles, math & science, open source code freely distributed
FREEDOM - Voluntary partnerships, freedom from tyranny & corporate control
HARMONY - Minimal waste, self-renewing systems with diverse thriving connections
LOVE - Be yourself without hurting others, cooperation through natural law
This software contributes to that vision by enabling code execution across all 42
programming languages through a unified interface, accessible to everyone. Code is
seeds to sprout on any abandoned technology.
Learn more: https://www.permacomputer.com
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
software, either in source code form or as a compiled binary, for any purpose,
commercial or non-commercial, and by any means.
NO WARRANTY. THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.
That said, our permacomputer's digital membrane stratum continuously runs unit,
integration, and functional tests on all its own software - with our permacomputer
monitoring itself, repairing itself, with minimal human guidance in the loop.
Our agents do their best.
Copyright 2025 TimeHexOn & foxhop & russell@unturf
https://www.timehexon.com
https://www.foxhop.net
https://www.unturf.com/software