wololock/GroovyHttpServer.groovy

## GroovyHttpServer.groovy
import com.sun.net.httpserver.HttpExchange
import com.sun.net.httpserver.HttpHandler
import com.sun.net.httpserver.HttpServer
import groovy.transform.CompileStatic
import groovy.transform.TypeChecked

@CompileStatic
@TypeChecked
class GroovyHttpServer {

    static void main(String[] args) {
        def port = args.length > 0 ? args[0].toInteger() : 8080
        def baseDir = args.length > 1 ? new File(args[1]).canonicalFile : new File(".").canonicalFile

        def server = HttpServer.create(new InetSocketAddress(port), 0)

        server.createContext("/", new HttpHandler() {
            @Override
            void handle(HttpExchange exchange) throws IOException {
                def uri = exchange.requestURI
                def file = new File(baseDir, uri.path).canonicalFile
                if (!file.path.startsWith(baseDir.path)) {
                    sendResponse(exchange, 403, "403 (Forbidden)\n")
                } else if (file.directory) {
                    String base = file == baseDir ? '': uri.path
                    String listing = linkify(base, file.list()).join("\n")

                    sendResponse(exchange, 200, "<html><body>${listing}</body></html>")

                } else if (!file.file) {
                    sendResponse(exchange, 404, "404 (Not Found)\n")
                } else {
                    sendResponse(exchange, 200, new FileInputStream(file))
                }
            }
        })

        server.executor = null
        server.start()
        println "Listening at http://localhost:${port}/"
    }

    static void sendResponse(HttpExchange ex, int code, InputStream ins) {
        ex.sendResponseHeaders(code, 0)
        ex.responseBody << ins
        ex.responseBody.flush()
        ex.responseBody.close()
    }

    static void sendResponse(HttpExchange ex, int code, byte[] answer) {
        ex.sendResponseHeaders(code, answer.length)
        ex.responseBody.write(answer)
        ex.responseBody.close()
    }

    static void sendResponse(HttpExchange ex, int code, String answer) {
        sendResponse(ex, code, answer.bytes)
    }

    static List<String> linkify(String base, String[] files) {
        files.collect { file -> "<ul><a href=\"${base}/${file}\">${file}</a></ul>".toString() }
    }
}
	import com.sun.net.httpserver.HttpExchange
	import com.sun.net.httpserver.HttpHandler
	import com.sun.net.httpserver.HttpServer
	import groovy.transform.CompileStatic
	import groovy.transform.TypeChecked

	@CompileStatic
	@TypeChecked
	class GroovyHttpServer {

	static void main(String[] args) {
	def port = args.length > 0 ? args[0].toInteger() : 8080
	def baseDir = args.length > 1 ? new File(args[1]).canonicalFile : new File(".").canonicalFile

	def server = HttpServer.create(new InetSocketAddress(port), 0)

	server.createContext("/", new HttpHandler() {
	@Override
	void handle(HttpExchange exchange) throws IOException {
	def uri = exchange.requestURI
	def file = new File(baseDir, uri.path).canonicalFile
	if (!file.path.startsWith(baseDir.path)) {
	sendResponse(exchange, 403, "403 (Forbidden)\n")
	} else if (file.directory) {
	String base = file == baseDir ? '': uri.path
	String listing = linkify(base, file.list()).join("\n")

	sendResponse(exchange, 200, "<html><body>${listing}</body></html>")

	} else if (!file.file) {
	sendResponse(exchange, 404, "404 (Not Found)\n")
	} else {
	sendResponse(exchange, 200, new FileInputStream(file))
	}
	}
	})

	server.executor = null
	server.start()
	println "Listening at http://localhost:${port}/"
	}

	static void sendResponse(HttpExchange ex, int code, InputStream ins) {
	ex.sendResponseHeaders(code, 0)
	ex.responseBody << ins
	ex.responseBody.flush()
	ex.responseBody.close()
	}

	static void sendResponse(HttpExchange ex, int code, byte[] answer) {
	ex.sendResponseHeaders(code, answer.length)
	ex.responseBody.write(answer)
	ex.responseBody.close()
	}

	static void sendResponse(HttpExchange ex, int code, String answer) {
	sendResponse(ex, code, answer.bytes)
	}

	static List<String> linkify(String base, String[] files) {
	files.collect { file -> "<ul><a href=\"${base}/${file}\">${file}</a></ul>".toString() }
	}
	}