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| 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() } | |
| } | |
| } |
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