import javax.imageio.*; import java.awt.image.*; import java.awt.event.*; import java.awt.*; import java.security.NoSuchAlgorithmException; import java.security.MessageDigest; import java.lang.management.*; import java.lang.reflect.*; import java.net.*; import java.io.*; import javax.swing.text.*; import javax.swing.event.*; import javax.swing.*; import java.util.concurrent.atomic.*; import java.util.concurrent.*; import java.util.regex.*; import java.util.List; import java.util.zip.*; import java.util.*; /** JavaX runner version 19 Changes to v18: -safeTranslate -"list", "translate" and "run" ok in program args -TODO: find a solution for -v etc. -"-javac" option to force using javac -compiler errors now detected robustly, both with javac and ecj. -and some more... */ class _javax { static final String version = "JavaX 19"; static boolean verbose = false, translate = false, list = false, virtualizeTranslators = true; static String translateTo = null; static boolean preferCached = false, noID = false, noPrefetch = false; static boolean safeOnly = false, safeTranslate = false, javacOnly = false; static boolean runMainInProcess = true; static List mainTranslators = new ArrayList(); private static Map memSnippetCache = new HashMap(); private static int processesStarted, compilations; // snippet ID -> md5 private static HashMap prefetched = new HashMap(); private static File virtCache; // doesn't work yet private static Map> programCache = new HashMap>(); static boolean cacheTranslators = false; // this should work (caches transpiled translators) private static HashMap translationCache = new HashMap(); static boolean cacheTranspiledTranslators = true; // which snippets are available pre-transpiled server-side? private static Set hasTranspiledSet = new HashSet(); static boolean useServerTranspiled = true; static Object androidContext; static boolean android = isAndroid(); // Translators currently being translated (to detect recursions) private static Set translating = new HashSet(); static String lastOutput; public static void main(String[] args) throws Exception { File ioBaseDir = new File("."), inputDir = null, outputDir = null; String src = null; List programArgs = new ArrayList(); String programID; for (int i = 0; i < args.length; i++) { String arg = args[i]; if (arg.equals("-version")) { showVersion(); return; } if (arg.equals("-sysprop")) { showSystemProperties(); return; } if (arg.equals("-v") || arg.equals("-verbose")) verbose = true; else if (arg.equals("-finderror")) verbose = true; else if (arg.equals("-offline") || arg.equalsIgnoreCase("-prefercached")) preferCached = true; else if (arg.equals("-novirt")) virtualizeTranslators = false; else if (arg.equals("-safeonly")) safeOnly = true; else if (arg.equals("-safetranslate")) safeTranslate = true; else if (arg.equals("-noid")) noID = true; else if (arg.equals("-nocachetranspiled")) cacheTranspiledTranslators = false; else if (arg.equals("-javac")) javacOnly = true; else if (arg.equals("-localtranspile")) useServerTranspiled = false; else if (arg.equals("translate") && src == null) translate = true; else if (arg.equals("list") && src == null) { list = true; virtualizeTranslators = false; // so they are silenced } else if (arg.equals("run") && src == null) { // it's the default command anyway } else if (arg.startsWith("input=")) inputDir = new File(arg.substring(6)); else if (arg.startsWith("output=")) outputDir = new File(arg.substring(7)); else if (arg.equals("with")) mainTranslators.add(new String[] {args[++i], null}); else if (translate && arg.equals("to")) translateTo = args[++i]; else if (src == null) { //System.out.println("src=" + arg); src = arg; } else programArgs.add(arg); } cleanCache(); if (useServerTranspiled) noPrefetch = true; if (src == null) src = "."; // Might actually want to write to 2 disk caches (global/per program). if (virtualizeTranslators && !preferCached) virtCache = TempDirMaker_make(); if (inputDir != null) { ioBaseDir = TempDirMaker_make(); System.out.println("Taking input from: " + inputDir.getAbsolutePath()); System.out.println("Output is in: " + new File(ioBaseDir, "output").getAbsolutePath()); copyInput(inputDir, new File(ioBaseDir, "input")); } javaxmain(src, ioBaseDir, translate, list, programArgs.toArray(new String[programArgs.size()])); if (outputDir != null) { copyInput(new File(ioBaseDir, "output"), outputDir); System.out.println("Output copied to: " + outputDir.getAbsolutePath()); } if (verbose) { // print stats System.out.println("Processes started: " + processesStarted + ", compilations: " + compilations); } } public static void javaxmain(String src, File ioDir, boolean translate, boolean list, String[] args) throws Exception { String programID = isSnippetID(src) ? "" + parseSnippetID(src) : null; List libraries = new ArrayList(); File X = transpileMain(src, libraries); if (X == null) return; // list or run if (translate) { File to = X; if (translateTo != null) if (new File(translateTo).isDirectory()) to = new File(translateTo, "main.java"); else to = new File(translateTo); if (to != X) copy(new File(X, "main.java"), to); System.out.println("Program translated to: " + to.getAbsolutePath()); } else if (list) System.out.println(loadTextFile(new File(X, "main.java").getPath(), null)); else javax2(X, ioDir, false, runMainInProcess, libraries, args, null, programID); } static File transpileMain(String src, List libraries) throws Exception { File srcDir; boolean isTranspiled = false; if (isSnippetID(src)) { prefetch(src); long id = parseSnippetID(src); prefetched.remove(id); // hackfix to ensure transpiled main program is found. srcDir = loadSnippetAsMainJava(src); if (verbose) System.err.println("hasTranspiledSet: " + hasTranspiledSet); if (hasTranspiledSet.contains(id) && useServerTranspiled) { //System.err.println("Trying pretranspiled main program: #" + id); String transpiledSrc = getServerTranspiled("#" + id); int i = transpiledSrc.indexOf('\n'); String libs = transpiledSrc.substring(0, Math.max(0, i)); transpiledSrc = transpiledSrc.substring(i+1); if (!transpiledSrc.isEmpty()) { srcDir = TempDirMaker_make(); saveTextFile(new File(srcDir, "main.java").getPath(), transpiledSrc); isTranspiled = true; //translationCache.put(id, new Object[] {srcDir, libraries}); Matcher m = Pattern.compile("\\d+").matcher(libs); while (m.find()) { String libid = m.group(); File libraryFile = DiskSnippetCache_getLibrary(parseSnippetID(libid)); loadLibrary(libid, libraries, libraryFile); } } } } else { srcDir = new File(src); // if the argument is a file, it is assumed to be main.java if (srcDir.isFile()) { srcDir = TempDirMaker_make(); copy(new File(src), new File(srcDir, "main.java")); } if (!new File(srcDir, "main.java").exists()) { showVersion(); System.out.println("No main.java found, exiting"); return null; } } // translate File X = srcDir; if (!isTranspiled) { X = topLevelTranslate(X, libraries); System.err.println("Translated " + src); // save prefetch data if (isSnippetID(src)) savePrefetchData(src); } return X; } private static void prefetch(String mainSnippetID) throws IOException { if (noPrefetch) return; long mainID = parseSnippetID(mainSnippetID); String s = mainID + " " + loadTextFile(new File(userHome(), ".tinybrain/prefetch/" + mainID + ".txt").getPath(), ""); String[] ids = s.trim().split(" "); if (ids.length > 1) { String url = "http://tinybrain.de:8080/tb-int/prefetch.php?ids=" + URLEncoder.encode(s, "UTF-8"); String data = loadPage(new URL(url)); String[] split = data.split(" "); if (split.length == ids.length) for (int i = 0; i < ids.length; i++) prefetched.put(parseSnippetID(ids[i]), split[i]); } } static String userHome() { if (android) return ((File) call(androidContext, "getFilesDir")).getAbsolutePath(); else return System.getProperty("user.home"); } private static void savePrefetchData(String mainSnippetID) throws IOException { List ids = new ArrayList(); long mainID = parseSnippetID(mainSnippetID); for (long id : memSnippetCache.keySet()) if (id != mainID) ids.add(String.valueOf(id)); saveTextFile(new File(userHome(),".tinybrain/prefetch/" + mainID + ".txt").getPath(), join(" ", ids)); } static File topLevelTranslate(File srcDir, List libraries_out) throws Exception { File X = srcDir; X = applyTranslators(X, mainTranslators, libraries_out); // translators supplied on command line (unusual) // actual inner translation of the JavaX source X = defaultTranslate(X, libraries_out); return X; } private static File defaultTranslate(File x, List libraries_out) throws Exception { x = luaPrintToJavaPrint(x); x = repeatAutoTranslate(x, libraries_out); return x; } private static File repeatAutoTranslate(File x, List libraries_out) throws Exception { while (true) { File y = autoTranslate(x, libraries_out); if (y == x) return x; x = y; } } private static File autoTranslate(File x, List libraries_out) throws Exception { String main = loadTextFile(new File(x, "main.java").getPath(), null); List lines = toLines(main); List translators = findTranslators(lines); if (translators.isEmpty()) return x; main = fromLines(lines); File newDir = TempDirMaker_make(); saveTextFile(new File(newDir, "main.java").getPath(), main); return applyTranslators(newDir, translators, libraries_out); } private static List findTranslators(List lines) { List translators = new ArrayList(); Pattern pattern = Pattern.compile("^!([0-9# \t]+)"); Pattern pArgs = Pattern.compile("^\\s*\\((.*)\\)"); for (ListIterator iterator = lines.listIterator(); iterator.hasNext(); ) { String line = iterator.next(); line = line.trim(); Matcher matcher = pattern.matcher(line); if (matcher.find()) { String[] t = matcher.group(1).split("[ \t]+"); String rest = line.substring(matcher.end()); String arg = null; if (t.length == 1) { Matcher mArgs = pArgs.matcher(rest); if (mArgs.find()) arg = mArgs.group(1); } for (String transi : t) translators.add(new String[]{transi, arg}); iterator.remove(); } } return translators; } public static List toLines(String s) { List lines = new ArrayList(); int start = 0; while (true) { int i = toLines_nextLineBreak(s, start); if (i < 0) { if (s.length() > start) lines.add(s.substring(start)); break; } lines.add(s.substring(start, i)); if (s.charAt(i) == '\r' && i+1 < s.length() && s.charAt(i+1) == '\n') i += 2; else ++i; start = i; } return lines; } private static int toLines_nextLineBreak(String s, int start) { for (int i = start; i < s.length(); i++) { char c = s.charAt(i); if (c == '\r' || c == '\n') return i; } return -1; } public static String fromLines(List lines) { StringBuilder buf = new StringBuilder(); for (String line : lines) { buf.append(line).append('\n'); } return buf.toString(); } private static File applyTranslators(File x, List translators, List libraries_out) throws Exception { for (String[] translator : translators) x = applyTranslator(x, translator[0], translator[1], libraries_out); return x; } // also takes a library private static File applyTranslator(File x, String translator, String arg, List libraries_out) throws Exception { if (verbose) System.out.println("Using translator " + translator + " on sources in " + x.getPath()); File newDir = runTranslatorOnInput(translator, null, arg, x, !verbose, libraries_out); if (!new File(newDir, "main.java").exists()) { throw new Exception("Translator " + translator + " did not generate main.java"); // TODO: show translator output } if (verbose) System.out.println("Translated with " + translator + " from " + x.getPath() + " to " + newDir.getPath()); x = newDir; return x; } private static File luaPrintToJavaPrint(File x) throws IOException { File newDir = TempDirMaker_make(); String code = loadTextFile(new File(x, "main.java").getPath(), null); code = luaPrintToJavaPrint(code); if (verbose) System.out.println(code); saveTextFile(new File(newDir, "main.java").getPath(), code); return newDir; } public static String luaPrintToJavaPrint(String code) { return ("\n" + code).replaceAll( "(\n\\s*)print (\".*\")", "$1System.out.println($2);").substring(1); } public static File loadSnippetAsMainJava(String snippetID) throws IOException { checkProgramSafety(snippetID); File srcDir = TempDirMaker_make(); saveTextFile(new File(srcDir, "main.java").getPath(), loadSnippet(snippetID)); return srcDir; } public static File loadSnippetAsMainJavaVerified(String snippetID, String hash) throws IOException { checkProgramSafety(snippetID); File srcDir = TempDirMaker_make(); saveTextFile(new File(srcDir, "main.java").getPath(), loadSnippetVerified(snippetID, hash)); return srcDir; } /** returns output dir */ private static File runTranslatorOnInput(String snippetID, String hash, String arg, File input, boolean silent, List libraries_out) throws Exception { if (safeTranslate) checkProgramSafetyImpl(snippetID); long id = parseSnippetID(snippetID); File libraryFile = DiskSnippetCache_getLibrary(id); if (libraryFile != null) { loadLibrary(snippetID, libraries_out, libraryFile); return input; } String[] args = arg != null ? new String[]{arg} : new String[0]; File srcDir = hash == null ? loadSnippetAsMainJava(snippetID) : loadSnippetAsMainJavaVerified(snippetID, hash); long mainJavaSize = new File(srcDir, "main.java").length(); if (mainJavaSize == 0) { // no text in snippet? assume it's a library loadLibrary(snippetID, libraries_out, libraryFile); return input; } List libraries = new ArrayList(); Object[] cached = translationCache.get(id); if (cached != null) { //System.err.println("Taking translator " + snippetID + " from cache!"); srcDir = (File) cached[0]; libraries = (List) cached[1]; } else if (hasTranspiledSet.contains(id) && useServerTranspiled) { System.err.println("Trying pretranspiled translator: #" + snippetID); String transpiledSrc = getServerTranspiled(snippetID); transpiledSrc = transpiledSrc.substring(transpiledSrc.indexOf('\n')+1); // TODO: check for libraries if (!transpiledSrc.isEmpty()) { srcDir = TempDirMaker_make(); saveTextFile(new File(srcDir, "main.java").getPath(), transpiledSrc); translationCache.put(id, cached = new Object[] {srcDir, libraries}); } } File ioBaseDir = TempDirMaker_make(); /*Class mainClass = programCache.get("" + parseSnippetID(snippetID)); if (mainClass != null) return runCached(ioBaseDir, input, args);*/ // Doesn't work yet because virtualized directories are hardcoded in translator... if (cached == null) { System.err.println("Translating translator #" + id); if (translating.contains(id)) throw new RuntimeException("Recursive translator reference chain including #" + id); translating.add(id); try { srcDir = defaultTranslate(srcDir, libraries); } finally { translating.remove(id); } System.err.println("Translated translator #" + id); translationCache.put(id, new Object[]{srcDir, libraries}); } boolean runInProcess = false; if (virtualizeTranslators) { if (verbose) System.out.println("Virtualizing translator"); // TODO: don't virtualize class _javax (as included in, say, #636) //srcDir = applyTranslator(srcDir, "#2000351"); // I/O-virtualize the translator // that doesn't work because it recurses infinitely... // So we do it right here: String s = loadTextFile(new File(srcDir, "main.java").getPath(), null); s = s.replaceAll("new\\s+File\\(", "virtual.newFile("); s = s.replaceAll("new\\s+FileInputStream\\(", "virtual.newFileInputStream("); s = s.replaceAll("new\\s+FileOutputStream\\(", "virtual.newFileOutputStream("); s += "\n\n" + loadSnippet("#2000355"); // load class virtual // change baseDir s = s.replace("virtual_baseDir = \"\";", "virtual_baseDir " + "= " + javaQuote(ioBaseDir.getAbsolutePath()) + ";"); // extra + is necessary for Dumb TinyBrain :) // forward snippet cache (virtualized one) File dir = virtCache != null ? virtCache : DiskSnippetCache_dir; s = s.replace("static File DiskSnippetCache_dir" + ";", "static File DiskSnippetCache_dir " + "= new File(" + javaQuote(dir.getAbsolutePath()) + ");"); // extra + is necessary for Dumb TinyBrain :) s = s.replace("static boolean preferCached = false;", "static boolean preferCached = true;"); if (verbose) { System.out.println("==BEGIN VIRTUALIZED TRANSLATOR=="); System.out.println(s); System.out.println("==END VIRTUALIZED TRANSLATOR=="); } srcDir = TempDirMaker_make(); saveTextFile(new File(srcDir, "main.java").getPath(), s); // TODO: silence translator also runInProcess = true; } return runJavaX(ioBaseDir, srcDir, input, silent, runInProcess, libraries, args, cacheTranslators ? "" + id : null, "" + id); } private static String getServerTranspiled(String snippetID) throws IOException { long id = parseSnippetID(snippetID); URL url = new URL("http://tinybrain.de:8080/tb-int/get-transpiled.php?raw=1&withlibs=1&id=" + id); return loadPage(url); } static void checkProgramSafety(String snippetID) throws IOException { if (!safeOnly) return; checkProgramSafetyImpl(snippetID); } static void checkProgramSafetyImpl(String snippetID) throws IOException { URL url = new URL("http://tinybrain.de:8080/tb-int/is-javax-safe.php?id=" + parseSnippetID(snippetID)); String text = loadPage(url); if (!text.startsWith("{\"safe\":\"1\"}")) throw new RuntimeException("Program not safe: #" + parseSnippetID(snippetID)); } static void loadLibrary(String snippetID, List libraries_out, File libraryFile) throws IOException { if (verbose) System.out.println("Assuming " + snippetID + " is a library."); if (libraryFile == null) { byte[] data = loadDataSnippetImpl(snippetID); DiskSnippetCache_putLibrary(parseSnippetID(snippetID), data); libraryFile = DiskSnippetCache_getLibrary(parseSnippetID(snippetID)); } if (!libraries_out.contains(libraryFile)) libraries_out.add(libraryFile); } private static byte[] loadDataSnippetImpl(String snippetID) throws IOException { byte[] data; try { URL url = new URL("http://eyeocr.sourceforge.net/filestore/filestore.php?cmd=serve&file=blob_" + parseSnippetID(snippetID) + "&contentType=application/binary"); System.err.println("Loading library: " + url); data = loadBinaryPage(url.openConnection()); if (verbose) System.err.println("Bytes loaded: " + data.length); } catch (FileNotFoundException e) { throw new IOException("Binary snippet #" + snippetID + " not found or not public"); } return data; } /** returns output dir */ private static File runJavaX(File ioBaseDir, File originalSrcDir, File originalInput, boolean silent, boolean runInProcess, List libraries, String[] args, String cacheAs, String programID) throws Exception { File srcDir = new File(ioBaseDir, "src"); File inputDir = new File(ioBaseDir, "input"); File outputDir = new File(ioBaseDir, "output"); copyInput(originalSrcDir, srcDir); copyInput(originalInput, inputDir); javax2(srcDir, ioBaseDir, silent, runInProcess, libraries, args, cacheAs, programID); return outputDir; } private static void copyInput(File src, File dst) throws IOException { copyDirectory(src, dst); } public static boolean hasFile(File inputDir, String name) { return new File(inputDir, name).exists(); } public static void copyDirectory(File src, File dst) throws IOException { if (verbose) System.out.println("Copying " + src.getAbsolutePath() + " to " + dst.getAbsolutePath()); dst.mkdirs(); File[] files = src.listFiles(); if (files == null) return; for (File file : files) { File dst1 = new File(dst, file.getName()); if (file.isDirectory()) copyDirectory(file, dst1); else { if (verbose) System.out.println("Copying " + file.getAbsolutePath() + " to " + dst1.getAbsolutePath()); copy(file, dst1); } } } /** Quickly copy a file without a progress bar or any other fancy GUI... :) */ public static void copy(File src, File dest) throws IOException { FileInputStream inputStream = newFileInputStream(src); FileOutputStream outputStream = newFileOutputStream(dest); try { copy(inputStream, outputStream); inputStream.close(); } finally { outputStream.close(); } } static Object call(Object o, String method, Object... args) { try { Method m = call_findMethod(o, method, args, false); m.setAccessible(true); return m.invoke(o, args); } catch (Exception e) { throw new RuntimeException(e); } } static Object call(Class c, String method, Object... args) { try { Method m = call_findStaticMethod(c, method, args, false); m.setAccessible(true); return m.invoke(null, args); } catch (Exception e) { throw new RuntimeException(e); } } static Method call_findStaticMethod(Class c, String method, Object[] args, boolean debug) { while (c != null) { for (Method m : c.getDeclaredMethods()) { if (debug) System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");; if (!m.getName().equals(method)) { if (debug) System.out.println("Method name mismatch: " + method); continue; } if ((m.getModifiers() & Modifier.STATIC) == 0 || !call_checkArgs(m, args, debug)) continue; return m; } c = c.getSuperclass(); } throw new RuntimeException("Method '" + method + "' (static) with " + args.length + " parameter(s) not found in " + c.getName()); } static Method call_findMethod(Object o, String method, Object[] args, boolean debug) { Class c = o.getClass(); while (c != null) { for (Method m : c.getDeclaredMethods()) { if (debug) System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");; if (m.getName().equals(method) && call_checkArgs(m, args, debug)) return m; } c = c.getSuperclass(); } throw new RuntimeException("Method '" + method + "' (non-static) with " + args.length + " parameter(s) not found in " + o.getClass().getName()); } private static boolean call_checkArgs(Method m, Object[] args, boolean debug) { Class[] types = m.getParameterTypes(); if (types.length != args.length) { if (debug) System.out.println("checkArgs: Bad parameter length: " + args.length + " vs " + types.length); return false; } for (int i = 0; i < types.length; i++) if (!(args[i] == null || types[i].isInstance(args[i]))) { if (debug) System.out.println("checkArgs: Bad parameter " + i + ": " + args[i] + " vs " + types[i]); return false; } return true; } private static FileInputStream newFileInputStream(File f) throws FileNotFoundException { /*if (androidContext != null) return (FileInputStream) call(androidContext, "openFileInput", f.getPath()); else*/ return new // line break for Dumb TinyBrain :) FileInputStream(f); } private static FileOutputStream newFileOutputStream(File f) throws FileNotFoundException { /*if (androidContext != null) return (FileOutputStream) call(androidContext, "openFileOutput", f.getPath(), 0); else*/ return new // line break for Dumb TinyBrain :) FileOutputStream(f); } public static void copy(InputStream in, OutputStream out) throws IOException { byte[] buf = new byte[65536]; while (true) { int n = in.read(buf); if (n <= 0) return; out.write(buf, 0, n); } } /** writes safely (to temp file, then rename) */ public static void saveTextFile(String fileName, String contents) throws IOException { File file = new File(fileName); File parentFile = file.getParentFile(); if (parentFile != null) parentFile.mkdirs(); String tempFileName = fileName + "_temp"; FileOutputStream fileOutputStream = newFileOutputStream(new File(tempFileName)); OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, charsetForTextFiles); PrintWriter printWriter = new PrintWriter(outputStreamWriter); printWriter.print(contents); printWriter.close(); if (file.exists() && !file.delete()) throw new IOException("Can't delete " + fileName); if (!new File(tempFileName).renameTo(file)) throw new IOException("Can't rename " + tempFileName + " to " + fileName); } /** writes safely (to temp file, then rename) */ public static void saveBinaryFile(String fileName, byte[] contents) throws IOException { File file = new File(fileName); File parentFile = file.getParentFile(); if (parentFile != null) parentFile.mkdirs(); String tempFileName = fileName + "_temp"; FileOutputStream fileOutputStream = newFileOutputStream(new File(tempFileName)); fileOutputStream.write(contents); fileOutputStream.close(); if (file.exists() && !file.delete()) throw new IOException("Can't delete " + fileName); if (!new File(tempFileName).renameTo(file)) throw new IOException("Can't rename " + tempFileName + " to " + fileName); } public static String loadTextFile(String fileName, String defaultContents) throws IOException { if (!new File(fileName).exists()) return defaultContents; FileInputStream fileInputStream = newFileInputStream(new File(fileName)); InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, charsetForTextFiles); return loadTextFile(inputStreamReader, (int) new File(fileName).length()); } public static String loadTextFile(Reader reader, int length) throws IOException { try { char[] chars = new char[length]; int n = reader.read(chars); return new String(chars, 0, n); } finally { reader.close(); } } static File DiskSnippetCache_dir; public static void initDiskSnippetCache(File dir) { DiskSnippetCache_dir = dir; dir.mkdirs(); } // Data files are immutable, use centralized cache public static synchronized File DiskSnippetCache_getLibrary(long snippetID) throws IOException { File file = new File(getGlobalCache(), "data_" + snippetID + ".jar"); if (verbose) System.out.println("Checking data cache: " + file.getPath()); return file.exists() ? file : null; } public static synchronized String DiskSnippetCache_get(long snippetID) throws IOException { return loadTextFile(DiskSnippetCache_getFile(snippetID).getPath(), null); } private static File DiskSnippetCache_getFile(long snippetID) { return new File(DiskSnippetCache_dir, "" + snippetID); } public static synchronized void DiskSnippetCache_put(long snippetID, String snippet) throws IOException { saveTextFile(DiskSnippetCache_getFile(snippetID).getPath(), snippet); } public static synchronized void DiskSnippetCache_putLibrary(long snippetID, byte[] data) throws IOException { saveBinaryFile(new File(getGlobalCache(), "data_" + snippetID).getPath() + ".jar", data); } public static File DiskSnippetCache_getDir() { return DiskSnippetCache_dir; } public static void initSnippetCache() { if (DiskSnippetCache_dir == null) initDiskSnippetCache(getGlobalCache()); } private static File getGlobalCache() { File file = new File(userHome(), ".tinybrain/snippet-cache"); file.mkdirs(); return file; } public static String loadSnippetVerified(String snippetID, String hash) throws IOException { String text = loadSnippet(snippetID); String realHash = getHash(text.getBytes("UTF-8")); if (!realHash.equals(hash)) { String msg; if (hash.isEmpty()) msg = "Here's your hash for " + snippetID + ", please put in your program: " + realHash; else msg = "Hash mismatch for " + snippetID + ": " + realHash + " (new) vs " + hash + " - has tinybrain.de been hacked??"; throw new RuntimeException(msg); } return text; } public static String getHash(byte[] data) { return bytesToHex(getFullFingerprint(data)); } public static byte[] getFullFingerprint(byte[] data) { try { return MessageDigest.getInstance("MD5").digest(data); } catch (NoSuchAlgorithmException e) { throw new RuntimeException(e); } } public static String bytesToHex(byte[] bytes) { return bytesToHex(bytes, 0, bytes.length); } public static String bytesToHex(byte[] bytes, int ofs, int len) { StringBuilder stringBuilder = new StringBuilder(len*2); for (int i = 0; i < len; i++) { String s = "0" + Integer.toHexString(bytes[ofs+i]); stringBuilder.append(s.substring(s.length()-2, s.length())); } return stringBuilder.toString(); } public static String loadSnippet(String snippetID) throws IOException { return loadSnippet(parseSnippetID(snippetID)); } public static long parseSnippetID(String snippetID) { return Long.parseLong(shortenSnippetID(snippetID)); } private static String shortenSnippetID(String snippetID) { if (snippetID.startsWith("#")) snippetID = snippetID.substring(1); String httpBlaBla = "http://tinybrain.de/"; if (snippetID.startsWith(httpBlaBla)) snippetID = snippetID.substring(httpBlaBla.length()); return snippetID; } public static boolean isSnippetID(String snippetID) { snippetID = shortenSnippetID(snippetID); return isInteger(snippetID) && Long.parseLong(snippetID) != 0; } public static boolean isInteger(String s) { return Pattern.matches("\\-?\\d+", s); } public static String loadSnippet(long snippetID) throws IOException { String text = memSnippetCache.get(snippetID); if (text != null) { if (verbose) System.out.println("Getting " + snippetID + " from mem cache"); return text; } initSnippetCache(); text = DiskSnippetCache_get(snippetID); if (preferCached && text != null) { if (verbose) System.out.println("Getting " + snippetID + " from disk cache (preferCached)"); return text; } String md5 = text != null ? md5(text) : "-"; if (text != null) { String hash = prefetched.get(snippetID); if (hash != null) { if (md5.equals(hash)) { memSnippetCache.put(snippetID, text); if (verbose) System.out.println("Getting " + snippetID + " from prefetched"); return text; } else prefetched.remove(snippetID); // (maybe this is not necessary) } } try { /*URL url = new URL("http://tinybrain.de:8080/getraw.php?id=" + snippetID); text = loadPage(url);*/ String theURL = "http://tinybrain.de:8080/getraw.php?id=" + snippetID + "&getmd5=1&utf8=1&usetranspiled=1"; if (text != null) { //System.err.println("MD5: " + md5); theURL += "&md5=" + md5; } URL url = new URL(theURL); String page = loadPage(url); // parse & drop transpilation flag available line int i = page.indexOf('\n'); boolean hasTranspiled = page.substring(0, i).trim().equals("1"); if (hasTranspiled) hasTranspiledSet.add(snippetID); else hasTranspiledSet.remove(snippetID); page = page.substring(i+1); if (page.startsWith("==*#*==")) { // same, keep text //System.err.println("Snippet unchanged, keeping."); } else { // drop md5 line i = page.indexOf('\n'); String hash = page.substring(0, i).trim(); text = page.substring(i+1); String myHash = md5(text); if (myHash.equals(hash)) { //System.err.println("Hash match: " + hash); } else System.err.println("Hash mismatch"); } } catch (FileNotFoundException e) { e.printStackTrace(); throw new IOException("Snippet #" + snippetID + " not found or not public"); } memSnippetCache.put(snippetID, text); try { initSnippetCache(); DiskSnippetCache_put(snippetID, text); } catch (IOException e) { System.err.println("Minor warning: Couldn't save snippet to cache (" + DiskSnippetCache_getDir() + ")"); } return text; } private static String md5(String text) { try { return bytesToHex(md5impl(text.getBytes("UTF-8"))); // maybe different than the way PHP does it... } catch (UnsupportedEncodingException e) { throw new RuntimeException(e); } } public static byte[] md5impl(byte[] data) { try { return MessageDigest.getInstance("MD5").digest(data); } catch (NoSuchAlgorithmException e) { throw new RuntimeException(e); } } private static String loadPage(URL url) throws IOException { System.err.println("Loading: " + url.toExternalForm()); URLConnection con = url.openConnection(); return loadPage(con, url); } public static String loadPage(URLConnection con, URL url) throws IOException { setHeaders(con); String contentType = con.getContentType(); if (contentType == null) throw new IOException("Page could not be read: " + url); //Log.info("Content-Type: " + contentType); String charset = guessCharset(contentType); //System.err.println("Charset: " + charset); Reader r = new InputStreamReader(con.getInputStream(), charset); StringBuilder buf = new StringBuilder(); while (true) { int ch = r.read(); if (ch < 0) break; //Log.info("Chars read: " + buf.length()); buf.append((char) ch); } return buf.toString(); } public static byte[] loadBinaryPage(URLConnection con) throws IOException { setHeaders(con); return loadBinaryPage_noHeaders(con); } private static byte[] loadBinaryPage_noHeaders(URLConnection con) throws IOException { ByteArrayOutputStream buf = new ByteArrayOutputStream(); InputStream inputStream = con.getInputStream(); while (true) { int ch = inputStream.read(); if (ch < 0) break; buf.write(ch); } inputStream.close(); return buf.toByteArray(); } private static void setHeaders(URLConnection con) throws IOException { String computerID = getComputerID(); if (computerID != null) con.setRequestProperty("X-ComputerID", computerID); } public static String guessCharset(String contentType) { Pattern p = Pattern.compile("text/html;\\s+charset=([^\\s]+)\\s*"); Matcher m = p.matcher(contentType); /* If Content-Type doesn't match this pre-conception, choose default and hope for the best. */ return m.matches() ? m.group(1) : "ISO-8859-1"; } /** runs a transpiled set of sources */ public static void javax2(File srcDir, File ioBaseDir, boolean silent, boolean runInProcess, List libraries, String[] args, String cacheAs, String programID) throws Exception { if (android) javax2android(srcDir, args, programID); else { File classesDir = TempDirMaker_make(); String javacOutput = compileJava(srcDir, libraries, classesDir); // run if (verbose) System.out.println("Running program (" + srcDir.getAbsolutePath() + ") on io dir " + ioBaseDir.getAbsolutePath() + (runInProcess ? "[in-process]" : "") + "\n"); runProgram(javacOutput, classesDir, ioBaseDir, silent, runInProcess, libraries, args, cacheAs, programID); } } static Class loadx2android(File srcDir, String programID) throws Exception { // TODO: optimize if it's a loaded snippet anyway URL url = new URL("http://tinybrain.de:8080/dexcompile.php"); URLConnection conn = url.openConnection(); String postData = "src=" + URLEncoder.encode(loadTextFile(new File(srcDir, "main.java").getPath(), null), "UTF-8"); byte[] dexData = doPostBinary(postData, conn); if (!isDex(dexData)) throw new RuntimeException("Dex generation error: " + dexData.length + " bytes - " + new String(dexData, "UTF-8")); System.out.println("Dex loaded: " + dexData.length + "b"); File dexDir = TempDirMaker_make(); File dexFile = new File(dexDir, System.currentTimeMillis() + ".dex"); File dexOutputDir = TempDirMaker_make(); System.out.println("Saving dex to: " + dexDir.getAbsolutePath()); try { saveBinaryFile(dexFile.getPath(), dexData); } catch (Throwable e) { System.out.println("Whoa!"); throw new RuntimeException(e); } System.out.println("Getting parent class loader."); ClassLoader parentClassLoader = //ClassLoader.getSystemClassLoader(); // does not find support jar //getClass().getClassLoader(); // Let's try this... _javax.class.getClassLoader().getParent(); // XXX ! //System.out.println("Making DexClassLoader."); //DexClassLoader classLoader = new DexClassLoader(dexFile.getAbsolutePath(), dexOutputDir.getAbsolutePath(), null, // parentClassLoader); Class dcl = Class.forName("dalvik.system.DexClassLoader"); Object classLoader = dcl.getConstructors()[0].newInstance(dexFile.getAbsolutePath(), dexOutputDir.getAbsolutePath(), null, parentClassLoader); //System.out.println("Loading main class."); //Class theClass = classLoader.loadClass(mainClassName); Class theClass = (Class) call(classLoader, "loadClass", "main"); //System.out.println("Main class loaded."); try { set(theClass, "androidContext", androidContext); } catch (Throwable e) {} try { set(theClass, "programID", programID); } catch (Throwable e) {} return theClass; } static void javax2android(File srcDir, String[] args, String programID) throws Exception { Class theClass = loadx2android(srcDir, programID); Method main = null; try { main = call_findStaticMethod(theClass, "main", new Object[]{androidContext}, false); } catch (RuntimeException e) { } //System.out.println("main method for " + androidContext + " of " + theClass + ": " + main); if (main != null) { // old style main program that returns a View System.out.println("Calling main (old-style)"); Object view = main.invoke(null, androidContext); System.out.println("Calling setContentView with " + view); call(Class.forName("main"), "setContentViewInUIThread", view); //call(androidContext, "setContentView", view); System.out.println("Done."); } else { System.out.println("New-style main method running.\n\n====\n"); runMainMethod(args, theClass); } } static byte[] DEX_FILE_MAGIC = { 0x64, 0x65, 0x78, 0x0a, 0x30, 0x33, 0x35, 0x00 }; static boolean isDex(byte[] dexData) { if (dexData.length < DEX_FILE_MAGIC.length) return false; for (int i = 0; i < DEX_FILE_MAGIC.length; i++) if (dexData[i] != DEX_FILE_MAGIC[i]) return false; return true; } static byte[] doPostBinary(String urlParameters, URLConnection conn) throws IOException { // connect and do POST setHeaders(conn); conn.setDoOutput(true); OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream()); writer.write(urlParameters); writer.flush(); byte[] contents = loadBinaryPage_noHeaders(conn); writer.close(); return contents; } static String compileJava(File srcDir, List libraries, File classesDir) throws IOException { ++compilations; // collect sources List sources = new ArrayList(); if (verbose) System.out.println("Scanning for sources in " + srcDir.getPath()); scanForSources(srcDir, sources, true); if (sources.isEmpty()) throw new IOException("No sources found"); // compile File optionsFile = File.createTempFile("javax", ""); if (verbose) System.out.println("Compiling " + sources.size() + " source(s) to " + classesDir.getPath()); String options = "-d " + bashQuote(classesDir.getPath()); writeOptions(sources, libraries, optionsFile, options); classesDir.mkdirs(); return invokeJavaCompiler(optionsFile); } private static void runProgram(String javacOutput, File classesDir, File ioBaseDir, boolean silent, boolean runInProcess, List libraries, String[] args, String cacheAs, String programID) throws Exception { // print javac output if compile failed and it hasn't been printed yet boolean didNotCompile = !didCompile(classesDir); if (verbose || didNotCompile) System.out.println(javacOutput); if (didNotCompile) return; if (runInProcess || (ioBaseDir.getAbsolutePath().equals(new File(".").getAbsolutePath()) && !silent)) { runProgramQuick(classesDir, libraries, args, cacheAs, programID); return; } boolean echoOK = false; // TODO: add libraries to class path String bashCmd = "(cd " + bashQuote(ioBaseDir.getAbsolutePath()) + " && (java -cp " + bashQuote(classesDir.getAbsolutePath()) + " main" + (echoOK ? "; echo ok" : "") + "))"; if (verbose) System.out.println(bashCmd); String output = backtick(bashCmd); lastOutput = output; if (verbose || !silent) System.out.println(output); } static boolean didCompile(File classesDir) { return hasFile(classesDir, "main.class"); } private static void runProgramQuick(File classesDir, List libraries, String[] args, String cacheAs, String programID) throws Exception { // collect urls URL[] urls = new URL[libraries.size()+1]; urls[0] = classesDir.toURI().toURL(); for (int i = 0; i < libraries.size(); i++) urls[i+1] = libraries.get(i).toURI().toURL(); // make class loader URLClassLoader classLoader = new URLClassLoader(urls); // load JavaX main class Class mainClass = classLoader.loadClass("main"); if (cacheAs != null) programCache.put(cacheAs, mainClass); try { set(mainClass, "programID", programID); } catch (Throwable e) {} runMainMethod(args, mainClass); } static void runMainMethod(Object args, Class mainClass) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException { Method main = mainClass.getMethod("main", String[].class); main.invoke(null, args); } private static String invokeJavaCompiler(File optionsFile) throws IOException { String output; if (hasEcj() && !javacOnly) output = invokeEcj(optionsFile); else output = invokeJavac(optionsFile); if (verbose) System.out.println(output); return output; } private static boolean hasEcj() { try { Class.forName("org.eclipse.jdt.internal.compiler.batch.Main"); return true; } catch (ClassNotFoundException e) { return false; } } private static String invokeJavac(File optionsFile) throws IOException { String output; output = backtick("javac " + bashQuote("@" + optionsFile.getPath())); if (exitValue != 0) { System.out.println(output); throw new RuntimeException("javac returned errors."); } return output; } // throws ClassNotFoundException if ecj is not in classpath static String invokeEcj(File optionsFile) { try { StringWriter writer = new StringWriter(); PrintWriter printWriter = new PrintWriter(writer); // add more eclipse options in the line below String[] args = {"@" + optionsFile.getPath(), "-source", "1.7", "-nowarn" }; Class ecjClass = Class.forName("org.eclipse.jdt.internal.compiler.batch.Main"); Object main = newInstance(ecjClass, printWriter, printWriter, false); call(main, "compile", new Object[]{args}); int errors = (Integer) get(main, "globalErrorsCount"); String output = writer.toString(); if (errors != 0) { System.out.println(output); throw new RuntimeException("Java compiler returned errors."); } return output; } catch (Exception e) { throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e); } } static Object get(Object o, String field) { try { Field f = findField(o.getClass(), field); f.setAccessible(true); return f.get(o); } catch (Exception e) { throw new RuntimeException(e); } } static Object newInstance(Class c, Object... args) { try { Constructor m = findConstructor(c, args); m.setAccessible(true); return m.newInstance(args); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} static Constructor findConstructor(Class c, Object... args) { for (Constructor m : c.getDeclaredConstructors()) { if (!checkArgs(m.getParameterTypes(), args, verbose)) continue; return m; } throw new RuntimeException("Constructor with " + args.length + " matching parameter(s) not found in " + c.getName()); } static boolean checkArgs(Class[] types, Object[] args, boolean debug) { if (types.length != args.length) { if (debug) System.out.println("Bad parameter length: " + args.length + " vs " + types.length); return false; } for (int i = 0; i < types.length; i++) if (!(args[i] == null || isInstanceX(types[i], args[i]))) { if (debug) System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]); return false; } return true; } // extended to handle primitive types private static boolean isInstanceX(Class type, Object arg) { if (type == boolean.class) return arg instanceof Boolean; if (type == int.class) return arg instanceof Integer; if (type == long.class) return arg instanceof Long; if (type == float.class) return arg instanceof Float; if (type == short.class) return arg instanceof Short; if (type == char.class) return arg instanceof Character; if (type == byte.class) return arg instanceof Byte; return type.isInstance(arg); } private static void writeOptions(List sources, List libraries, File optionsFile, String moreOptions) throws IOException { FileWriter writer = new FileWriter(optionsFile); for (File source : sources) writer.write(bashQuote(source.getPath()) + " "); if (!libraries.isEmpty()) { List cp = new ArrayList(); for (File lib : libraries) cp.add(lib.getAbsolutePath()); writer.write("-cp " + bashQuote(join(File.pathSeparator, cp)) + " "); } writer.write(moreOptions); writer.close(); } static void scanForSources(File source, List sources, boolean topLevel) { if (source.isFile() && source.getName().endsWith(".java")) sources.add(source); else if (source.isDirectory() && !isSkippedDirectoryName(source.getName(), topLevel)) { File[] files = source.listFiles(); for (File file : files) scanForSources(file, sources, false); } } private static boolean isSkippedDirectoryName(String name, boolean topLevel) { if (topLevel) return false; // input or output ok as highest directory (intentionally specified by user, not just found by a directory scan in which case we probably don't want it. it's more like heuristics actually.) return name.equalsIgnoreCase("input") || name.equalsIgnoreCase("output"); } static int exitValue; public static String backtick(String cmd) throws IOException { ++processesStarted; File outFile = File.createTempFile("_backtick", ""); File scriptFile = File.createTempFile("_backtick", isWindows() ? ".bat" : ""); String command = cmd + ">" + bashQuote(outFile.getPath()) + " 2>&1"; //Log.info("[Backtick] " + command); try { saveTextFile(scriptFile.getPath(), command); String[] command2; if (isWindows()) command2 = new String[] { scriptFile.getPath() }; else command2 = new String[] { "/bin/bash", scriptFile.getPath() }; Process process = Runtime.getRuntime().exec(command2); try { process.waitFor(); } catch (InterruptedException e) { throw new RuntimeException(e); } exitValue = process.exitValue(); if (verbose) System.out.println("Process return code: " + exitValue); return loadTextFile(outFile.getPath(), ""); } finally { scriptFile.delete(); } } /** possibly improvable */ public static String javaQuote(String text) { return bashQuote(text); } /** possibly improvable */ public static String bashQuote(String text) { if (text == null) return null; return "\"" + text .replace("\\", "\\\\") .replace("\"", "\\\"") .replace("\n", "\\n") .replace("\r", "\\r") + "\""; } public final static String charsetForTextFiles = "UTF8"; static long TempDirMaker_lastValue; public static File TempDirMaker_make() { File dir = new File(userHome(), ".javax/" + TempDirMaker_newValue()); dir.mkdirs(); return dir; } private static long TempDirMaker_newValue() { long value; do value = System.currentTimeMillis(); while (value == TempDirMaker_lastValue); TempDirMaker_lastValue = value; return value; } public static String join(String glue, Iterable strings) { StringBuilder buf = new StringBuilder(); Iterator i = strings.iterator(); if (i.hasNext()) { buf.append(i.next()); while (i.hasNext()) buf.append(glue).append(i.next()); } return buf.toString(); } public static boolean isWindows() { return System.getProperty("os.name").contains("Windows"); } public static String makeRandomID(int length) { Random random = new Random(); char[] id = new char[length]; for (int i = 0; i< id.length; i++) id[i] = (char) ((int) 'a' + random.nextInt(26)); return new String(id); } static String computerID; public static String getComputerID() throws IOException { if (noID) return null; if (computerID == null) { File file = new File(userHome(), ".tinybrain/computer-id"); computerID = loadTextFile(file.getPath(), null); if (computerID == null) { computerID = makeRandomID(12); saveTextFile(file.getPath(), computerID); } if (verbose) System.out.println("Local computer ID: " + computerID); } return computerID; } static int fileDeletions; static void cleanCache() { if (verbose) System.out.println("Cleaning cache"); fileDeletions = 0; File javax = new File(userHome(), ".javax"); long now = System.currentTimeMillis(); File[] files = javax.listFiles(); if (files != null) for (File dir : files) { if (dir.isDirectory() && Pattern.compile("\\d+").matcher(dir.getName()).matches()) { long time = Long.parseLong(dir.getName()); long seconds = (now - time) / 1000; long minutes = seconds / 60; long hours = minutes / 60; if (hours >= 1) { //System.out.println("Can delete " + dir.getAbsolutePath() + ", age: " + hours + " h"); removeDir(dir); } } } if (verbose && fileDeletions != 0) System.out.println("Cleaned cache. File deletions: " + fileDeletions); } static void removeDir(File dir) { if (dir.getAbsolutePath().indexOf(".javax") < 0) // security check! return; for (File f : dir.listFiles()) { if (f.isDirectory()) removeDir(f); else { if (verbose) System.out.println("Deleting " + f.getAbsolutePath()); f.delete(); ++fileDeletions; } } dir.delete(); } static void showSystemProperties() { System.out.println("System properties:\n"); for (Map.Entry entry : System.getProperties().entrySet()) { System.out.println(" " + entry.getKey() + " = " + entry.getValue()); } System.out.println(); } static void showVersion() { //showSystemProperties(); boolean eclipseFound = hasEcj(); //String platform = System.getProperty("java.vendor") + " " + System.getProperty("java.runtime.name") + " " + System.getProperty("java.version"); String platform = System.getProperty("java.vm.name") + " " + System.getProperty("java.version"); String os = System.getProperty("os.name"), arch = System.getProperty("os.arch"); System.out.println("This is " + version + "."); System.out.println("[Details: " + (eclipseFound ? "Eclipse compiler (good)" : "javac (not so good)") + ", " + platform + ", " + arch + ", " + os + "]"); } static boolean isAndroid() { return System.getProperty("java.vendor").toLowerCase().indexOf("android") >= 0; } static void set(Class c, String field, Object value) { try { Field f = findStaticField(c, field); f.setAccessible(true); f.set(null, value); } catch (Exception e) { throw new RuntimeException(e); } } static Field findStaticField(Class c, String field) { for (Field f : c.getDeclaredFields()) if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0) return f; throw new RuntimeException("Static field '" + field + "' not found in " + c.getName()); } static Field findField(Class c, String field) { for (Field f : c.getDeclaredFields()) if (f.getName().equals(field)) return f; throw new RuntimeException("Field '" + field + "' not found in " + c.getName()); } } /** JavaX runner version 26 Changes to v25: -Adding "[main done]" message */ public class main { public static void main(String[] args) throws Exception { throw new RuntimeException("placebo"); } } class x26 implements Runnable { static final String version = "JavaX 26"; // If programs run longer than this, they might have their class files // deleted. static int tempFileRetentionTime = 24; // hours static boolean verbose = false, translate = false, list = false, virtualizeTranslators = true; static String translateTo = null; static boolean preferCached = false, noID = false, noPrefetch = false; static boolean safeOnly = false, safeTranslate = false, javacOnly = false, logOn = true; static boolean runMainInProcess = true, consoleOn = true, hasHelloMessage = false; static List mainTranslators = new ArrayList(); private static Map memSnippetCache = new HashMap(); private static int processesStarted, compilations; // snippet ID -> md5 private static HashMap prefetched = new HashMap(); private static File virtCache; // doesn't work yet private static Map> programCache = new HashMap>(); static boolean cacheTranslators = false; // this should work (caches transpiled translators) private static HashMap translationCache = new HashMap(); static boolean cacheTranspiledTranslators = true; // which snippets are available pre-transpiled server-side? private static Set hasTranspiledSet = new HashSet(); static boolean useServerTranspiled = true; static Object androidContext; static boolean android = isAndroid(); // Translators currently being translated (to detect recursions) private static Set translating = new HashSet(); static String lastOutput; static String[] fullArgs; private static Console console; public static void main(String[] args) { try { goMain(args); } catch (Throwable e) { e.printStackTrace(); } } static void goMain(String[] args) throws Exception { if (args.length != 0 && args[0].equals("-v")) verbose = true; redirectSystemOutAndErr(); if (consoleOn && console == null) tryToOpenConsole(args); String autoReport = loadTextFile(new File(userHome(), ".javax/auto-report-to-chat").getPath(), "").trim(); //print("autoReport=" + autoReport); if (!isChatServer(args) && autoReport.equals("1")) autoReportToChat(); if (!hasHelloMessage) { hasHelloMessage = true; //installHelloMessage(args.length == 0 ? "JavaX Start-Up VM" : "JavaX VM (" + smartJoin(args) + ")"); makeVMAndroid(); } File ioBaseDir = new File("."), inputDir = null, outputDir = null; String src = null; List programArgs = new ArrayList(); fullArgs = args; for (int i = 0; i < args.length; i++) { String arg = args[i]; if (arg.equals("-version")) { showVersion(); return; } if (arg.equals("-sysprop")) { showSystemProperties(); return; } if (arg.equals("-v") || arg.equals("-verbose")) verbose = true; else if (arg.equals("-finderror")) verbose = true; else if (arg.equals("-offline") || arg.equalsIgnoreCase("-prefercached")) preferCached = true; else if (arg.equals("-novirt")) virtualizeTranslators = false; else if (arg.equals("-safeonly")) safeOnly = true; else if (arg.equals("-safetranslate")) safeTranslate = true; else if (arg.equals("-noid")) noID = true; else if (arg.equals("-nocachetranspiled")) cacheTranspiledTranslators = false; else if (arg.equals("-javac")) javacOnly = true; else if (arg.equals("-localtranspile")) useServerTranspiled = false; else if (arg.equals("translate") && src == null) translate = true; else if (arg.equals("list") && src == null) { list = true; virtualizeTranslators = false; // so they are silenced } else if (arg.equals("run") && src == null) { // it's the default command anyway } else if (arg.startsWith("input=")) inputDir = new File(arg.substring(6)); else if (arg.startsWith("output=")) outputDir = new File(arg.substring(7)); else if (arg.equals("with")) mainTranslators.add(new String[] {args[++i], null}); else if (translate && arg.equals("to")) translateTo = args[++i]; else if (src == null) { //System.out.println("src=" + arg); src = arg; } else programArgs.add(arg); } cleanCache(); if (useServerTranspiled) noPrefetch = true; if (src == null) src = "."; // Might actually want to write to 2 disk caches (global/per program). if (virtualizeTranslators && !preferCached) virtCache = TempDirMaker_make(); if (inputDir != null) { ioBaseDir = TempDirMaker_make(); System.out.println("Taking input from: " + inputDir.getAbsolutePath()); System.out.println("Output is in: " + new File(ioBaseDir, "output").getAbsolutePath()); copyInput(inputDir, new File(ioBaseDir, "input")); } if (logOn) logStart(args); javaxmain(src, ioBaseDir, translate, list, programArgs.toArray(new String[programArgs.size()])); if (outputDir != null) { copyInput(new File(ioBaseDir, "output"), outputDir); System.out.println("Output copied to: " + outputDir.getAbsolutePath()); } if (verbose) { // print stats System.out.println("Processes started: " + processesStarted + ", compilations: " + compilations); } } public static void javaxmain(String src, File ioDir, boolean translate, boolean list, String[] args) throws Exception { String programID = isSnippetID(src) ? "" + parseSnippetID(src) : null; if (programID != null) System.err.println("JavaX TRANSLATE " + programID + " " + smartJoin(args)); List libraries = new ArrayList(); File X = transpileMain(src, libraries); if (X == null) { showVersion(); if (fullArgs != null) { String[] nargs; if (fullArgs.length == 0) nargs = new String[] {"1000825"}; // swing-start else { // forward to search nargs = new String[fullArgs.length+1]; nargs[0] = "636"; // nargs[1] = "search-runnables"; System.arraycopy(fullArgs, 0, nargs, 1, fullArgs.length); } main(nargs); // Hopefully we get no infinite recursion :) return; } System.out.println("No main.java found, exiting"); return; } info.transpiledSrc = X; // list or run if (translate) { File to = X; if (translateTo != null) { StringBuilder buf = new StringBuilder(); for (File f : libraries) buf.append(f.getName()+"\n"); if (new File(translateTo).isDirectory()) { to = new File(translateTo, "main.java"); saveTextFile(new File(translateTo, "libraries.txt").getPath(), buf.toString()); } else { to = new File(translateTo); saveTextFile(new File(translateTo + "_libraries").getPath(), buf.toString()); } } if (to != X) copy(new File(X, "main.java"), to); System.out.println("Program translated to: " + to.getAbsolutePath()); } else if (list) System.out.println(loadTextFile(new File(X, "main.java").getPath(), null)); else { if (programID != null) System.err.println("JavaX RUN " + programID + " " + smartJoin(args)); System.err.println(); // Make empty line before actual program starts javax2(X, ioDir, false, runMainInProcess, libraries, args, null, programID, info); System.out.println("[main done]"); // cleanup reportToChat thread if (reportToChat_q != null) { if (customSystemOut != null) Thread.sleep(1000); // delay to finish autoReportToChat. Yes it's hacky. if (verbose) System.out.println("Closing reportToChat queue"); reportToChat_q.done(); } } } static File transpileMain(String src, List libraries) throws Exception { File srcDir; boolean isTranspiled = false; if (isSnippetID(src)) { prefetch(src); long id = parseSnippetID(src); prefetched.remove(id); // hackfix to ensure transpiled main program is found. srcDir = loadSnippetAsMainJava(src); if (verbose) System.err.println("hasTranspiledSet: " + hasTranspiledSet); if (hasTranspiledSet.contains(id) && useServerTranspiled) { //System.err.println("Trying pretranspiled main program: #" + id); String transpiledSrc = getServerTranspiled("#" + id); int i = transpiledSrc.indexOf('\n'); String libs = transpiledSrc.substring(0, Math.max(0, i)); transpiledSrc = transpiledSrc.substring(i+1); if (!transpiledSrc.isEmpty()) { srcDir = TempDirMaker_make(); saveTextFile(new File(srcDir, "main.java").getPath(), transpiledSrc); isTranspiled = true; //translationCache.put(id, new Object[] {srcDir, libraries}); Matcher m = Pattern.compile("\\d+").matcher(libs); while (m.find()) { String libid = m.group(); File libraryFile = DiskSnippetCache_getLibrary(parseSnippetID(libid)); loadLibrary(libid, libraries, libraryFile); } } } } else { srcDir = new File(src); // if the argument is a file, it is assumed to be main.java if (srcDir.isFile()) { srcDir = TempDirMaker_make(); copy(new File(src), new File(srcDir, "main.java")); } if (!new File(srcDir, "main.java").exists()) return null; } // translate File X = srcDir; if (!isTranspiled) { X = topLevelTranslate(X, libraries); System.err.println("Translated " + src); // save prefetch data if (isSnippetID(src)) savePrefetchData(src); } return X; } private static void prefetch(String mainSnippetID) throws IOException { if (noPrefetch) return; long mainID = parseSnippetID(mainSnippetID); String s = mainID + " " + loadTextFile(new File(userHome(), ".tinybrain/prefetch/" + mainID + ".txt").getPath(), ""); String[] ids = s.trim().split(" "); if (ids.length > 1) { String url = "http://tinybrain.de:8080/tb-int/prefetch.php?ids=" + URLEncoder.encode(s, "UTF-8"); String data = loadPage(new URL(url)); String[] split = data.split(" "); if (split.length == ids.length) for (int i = 0; i < ids.length; i++) prefetched.put(parseSnippetID(ids[i]), split[i]); } } static String userHome() { if (android) return ((File) call(androidContext, "getFilesDir")).getAbsolutePath(); else return System.getProperty("user.home"); } private static void savePrefetchData(String mainSnippetID) throws IOException { List ids = new ArrayList(); long mainID = parseSnippetID(mainSnippetID); for (long id : memSnippetCache.keySet()) if (id != mainID) ids.add(String.valueOf(id)); saveTextFile(new File(userHome(),".tinybrain/prefetch/" + mainID + ".txt").getPath(), join(" ", ids)); } static File topLevelTranslate(File srcDir, List libraries_out) throws Exception { File X = srcDir; X = applyTranslators(X, mainTranslators, libraries_out); // translators supplied on command line (unusual) // actual inner translation of the JavaX source X = defaultTranslate(X, libraries_out); return X; } private static File defaultTranslate(File x, List libraries_out) throws Exception { x = luaPrintToJavaPrint(x); x = repeatAutoTranslate(x, libraries_out); return x; } private static File repeatAutoTranslate(File x, List libraries_out) throws Exception { while (true) { File y = autoTranslate(x, libraries_out); if (y == x) return x; x = y; } } private static File autoTranslate(File x, List libraries_out) throws Exception { String main = loadTextFile(new File(x, "main.java").getPath(), null); List lines = toLines(main); List translators = findTranslators(lines); if (translators.isEmpty()) return x; main = fromLines(lines); File newDir = TempDirMaker_make(); saveTextFile(new File(newDir, "main.java").getPath(), main); return applyTranslators(newDir, translators, libraries_out); } private static List findTranslators(List lines) { List translators = new ArrayList(); Pattern pattern = Pattern.compile("^!([0-9# \t]+)"); Pattern pArgs = Pattern.compile("^\\s*\\((.*)\\)"); for (ListIterator iterator = lines.listIterator(); iterator.hasNext(); ) { String line = iterator.next(); line = line.trim(); Matcher matcher = pattern.matcher(line); if (matcher.find()) { String[] t = matcher.group(1).split("[ \t]+"); String rest = line.substring(matcher.end()); String arg = null; if (t.length == 1) { Matcher mArgs = pArgs.matcher(rest); if (mArgs.find()) arg = mArgs.group(1); } for (String transi : t) translators.add(new String[]{transi, arg}); iterator.remove(); } } return translators; } public static List toLines(String s) { List lines = new ArrayList(); int start = 0; while (true) { int i = toLines_nextLineBreak(s, start); if (i < 0) { if (s.length() > start) lines.add(s.substring(start)); break; } lines.add(s.substring(start, i)); if (s.charAt(i) == '\r' && i+1 < s.length() && s.charAt(i+1) == '\n') i += 2; else ++i; start = i; } return lines; } private static int toLines_nextLineBreak(String s, int start) { for (int i = start; i < s.length(); i++) { char c = s.charAt(i); if (c == '\r' || c == '\n') return i; } return -1; } public static String fromLines(List lines) { StringBuilder buf = new StringBuilder(); for (String line : lines) { buf.append(line).append('\n'); } return buf.toString(); } private static File applyTranslators(File x, List translators, List libraries_out) throws Exception { for (String[] translator : translators) x = applyTranslator(x, translator[0], translator[1], libraries_out); return x; } // also takes a library private static File applyTranslator(File x, String translator, String arg, List libraries_out) throws Exception { if (verbose) System.out.println("Using translator " + translator + " on sources in " + x.getPath()); File newDir = runTranslatorOnInput(translator, null, arg, x, !verbose, libraries_out); if (!new File(newDir, "main.java").exists()) { throw new Exception("Translator " + translator + " did not generate main.java"); // TODO: show translator output } if (verbose) System.out.println("Translated with " + translator + " from " + x.getPath() + " to " + newDir.getPath()); x = newDir; return x; } private static File luaPrintToJavaPrint(File x) throws IOException { File newDir = TempDirMaker_make(); String code = loadTextFile(new File(x, "main.java").getPath(), null); code = luaPrintToJavaPrint(code); if (verbose) System.out.println(code); saveTextFile(new File(newDir, "main.java").getPath(), code); return newDir; } public static String luaPrintToJavaPrint(String code) { return ("\n" + code).replaceAll( "(\n\\s*)print (\".*\")", "$1System.out.println($2);").substring(1); } public static File loadSnippetAsMainJava(String snippetID) throws IOException { checkProgramSafety(snippetID); File srcDir = TempDirMaker_make(); saveTextFile(new File(srcDir, "main.java").getPath(), loadSnippet(snippetID)); return srcDir; } public static File loadSnippetAsMainJavaVerified(String snippetID, String hash) throws IOException { checkProgramSafety(snippetID); File srcDir = TempDirMaker_make(); saveTextFile(new File(srcDir, "main.java").getPath(), loadSnippetVerified(snippetID, hash)); return srcDir; } @SuppressWarnings( "unchecked" ) /** returns output dir */ private static File runTranslatorOnInput(String snippetID, String hash, String arg, File input, boolean silent, List libraries_out) throws Exception { if (safeTranslate) checkProgramSafetyImpl(snippetID); long id = parseSnippetID(snippetID); // It's a library, not a translator. File libraryFile = DiskSnippetCache_getLibrary(id); if (verbose) System.out.println("Library file for " + id + ": " + libraryFile); if (libraryFile != null) { loadLibrary(snippetID, libraries_out, libraryFile); return input; } String[] args = arg != null ? new String[]{arg} : new String[0]; File srcDir = hash == null ? loadSnippetAsMainJava(snippetID) : loadSnippetAsMainJavaVerified(snippetID, hash); long mainJavaSize = new File(srcDir, "main.java").length(); if (verbose) System.out.println(snippetID + ": length = " + mainJavaSize); if (mainJavaSize == 0) { // no text in snippet? assume it's a library loadLibrary(snippetID, libraries_out, libraryFile); return input; } List libraries = new ArrayList(); Object[] cached = translationCache.get(id); if (cached != null) { //System.err.println("Taking translator " + snippetID + " from cache!"); srcDir = (File) cached[0]; libraries = (List) cached[1]; } else if (hasTranspiledSet.contains(id) && useServerTranspiled) { System.err.println("Trying pretranspiled translator: #" + snippetID); String transpiledSrc = getServerTranspiled(snippetID); transpiledSrc = transpiledSrc.substring(transpiledSrc.indexOf('\n')+1); // TODO: check for libraries if (!transpiledSrc.isEmpty()) { srcDir = TempDirMaker_make(); saveTextFile(new File(srcDir, "main.java").getPath(), transpiledSrc); translationCache.put(id, cached = new Object[] {srcDir, libraries}); } } File ioBaseDir = TempDirMaker_make(); /*Class mainClass = programCache.get("" + parseSnippetID(snippetID)); if (mainClass != null) return runCached(ioBaseDir, input, args);*/ // Doesn't work yet because virtualized directories are hardcoded in translator... if (cached == null) { System.err.println("Translating translator #" + id); if (translating.contains(id)) throw new RuntimeException("Recursive translator reference chain including #" + id); translating.add(id); try { srcDir = defaultTranslate(srcDir, libraries); } finally { translating.remove(id); } System.err.println("Translated translator #" + id); translationCache.put(id, new Object[]{srcDir, libraries}); } boolean runInProcess = false; if (virtualizeTranslators) { if (verbose) System.out.println("Virtualizing translator"); // TODO: don't virtualize class _javax (as included in, say, #636) //srcDir = applyTranslator(srcDir, "#2000351"); // I/O-virtualize the translator // that doesn't work because it recurses infinitely... // So we do it right here: String s = loadTextFile(new File(srcDir, "main.java").getPath(), null); s = s.replaceAll("new\\s+File\\(", "virtual.newFile("); s = s.replaceAll("new\\s+FileInputStream\\(", "virtual.newFileInputStream("); s = s.replaceAll("new\\s+FileOutputStream\\(", "virtual.newFileOutputStream("); s += "\n\n" + loadSnippet("#2000355"); // load class virtual // change baseDir s = s.replace("virtual_baseDir = \"\";", "virtual_baseDir " + "= " + javaQuote(ioBaseDir.getAbsolutePath()) + ";"); // extra + is necessary for Dumb TinyBrain :) // forward snippet cache (virtualized one) File dir = virtCache != null ? virtCache : DiskSnippetCache_dir; s = s.replace("static File DiskSnippetCache_dir" + ";", "static File DiskSnippetCache_dir " + "= new File(" + javaQuote(dir.getAbsolutePath()) + ");"); // extra + is necessary for Dumb TinyBrain :) s = s.replace("static boolean preferCached = false;", "static boolean preferCached = true;"); if (verbose) { System.out.println("==BEGIN VIRTUALIZED TRANSLATOR=="); System.out.println(s); System.out.println("==END VIRTUALIZED TRANSLATOR=="); } srcDir = TempDirMaker_make(); saveTextFile(new File(srcDir, "main.java").getPath(), s); // TODO: silence translator also runInProcess = true; } return runJavaX(ioBaseDir, srcDir, input, silent, runInProcess, libraries, args, cacheTranslators ? "" + id : null, "" + id); } private static String getServerTranspiled(String snippetID) throws IOException { long id = parseSnippetID(snippetID); URL url = new URL("http://tinybrain.de:8080/tb-int/get-transpiled.php?raw=1&withlibs=1&id=" + id); return loadPage(url); } static void checkProgramSafety(String snippetID) throws IOException { if (!safeOnly) return; checkProgramSafetyImpl(snippetID); } static void checkProgramSafetyImpl(String snippetID) throws IOException { URL url = new URL("http://tinybrain.de:8080/tb-int/is-javax-safe.php?id=" + parseSnippetID(snippetID)); String text = loadPage(url); if (!text.startsWith("{\"safe\":\"1\"}")) throw new RuntimeException("Program not safe: #" + parseSnippetID(snippetID)); } static void loadLibrary(String snippetID, List libraries_out, File libraryFile) throws IOException { if (verbose) System.out.println("Assuming " + snippetID + " is a library."); if (libraryFile == null) { byte[] data = loadDataSnippetImpl(snippetID); DiskSnippetCache_putLibrary(parseSnippetID(snippetID), data); libraryFile = DiskSnippetCache_getLibrary(parseSnippetID(snippetID)); } if (!libraries_out.contains(libraryFile)) libraries_out.add(libraryFile); } private static byte[] loadDataSnippetImpl(String snippetID) throws IOException { byte[] data; try { URL url = new URL("http://eyeocr.sourceforge.net/filestore/filestore.php?cmd=serve&file=blob_" + parseSnippetID(snippetID) + "&contentType=application/binary"); System.err.println("Loading library: " + url); data = loadBinaryPage(url.openConnection()); if (verbose) System.err.println("Bytes loaded: " + data.length); } catch (FileNotFoundException e) { throw new IOException("Binary snippet #" + snippetID + " not found or not public"); } return data; } /** returns output dir */ private static File runJavaX(File ioBaseDir, File originalSrcDir, File originalInput, boolean silent, boolean runInProcess, List libraries, String[] args, String cacheAs, String programID) throws Exception { File srcDir = new File(ioBaseDir, "src"); File inputDir = new File(ioBaseDir, "input"); File outputDir = new File(ioBaseDir, "output"); copyInput(originalSrcDir, srcDir); copyInput(originalInput, inputDir); javax2(srcDir, ioBaseDir, silent, runInProcess, libraries, args, cacheAs, programID, null); return outputDir; } private static void copyInput(File src, File dst) throws IOException { copyDirectory(src, dst); } public static boolean hasFile(File inputDir, String name) { return new File(inputDir, name).exists(); } public static void copyDirectory(File src, File dst) throws IOException { if (verbose) System.out.println("Copying " + src.getAbsolutePath() + " to " + dst.getAbsolutePath()); dst.mkdirs(); File[] files = src.listFiles(); if (files == null) return; for (File file : files) { File dst1 = new File(dst, file.getName()); if (file.isDirectory()) copyDirectory(file, dst1); else { if (verbose) System.out.println("Copying " + file.getAbsolutePath() + " to " + dst1.getAbsolutePath()); copy(file, dst1); } } } /** Quickly copy a file without a progress bar or any other fancy GUI... :) */ public static void copy(File src, File dest) throws IOException { FileInputStream inputStream = newFileInputStream(src); FileOutputStream outputStream = newFileOutputStream(dest); try { copy(inputStream, outputStream); inputStream.close(); } finally { outputStream.close(); } } static Object call(Object o, String method, Object... args) { try { Method m = call_findMethod(o, method, args, false); m.setAccessible(true); return m.invoke(o, args); } catch (Exception e) { throw new RuntimeException(e); } } static Object call(Class c, String method, Object... args) { try { Method m = call_findStaticMethod(c, method, args, false); m.setAccessible(true); return m.invoke(null, args); } catch (Exception e) { throw new RuntimeException(e); } } static Method call_findStaticMethod(Class c, String method, Object[] args, boolean debug) { while (c != null) { for (Method m : c.getDeclaredMethods()) { if (debug) System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");; if (!m.getName().equals(method)) { if (debug) System.out.println("Method name mismatch: " + method); continue; } if ((m.getModifiers() & Modifier.STATIC) == 0 || !call_checkArgs(m, args, debug)) continue; return m; } c = c.getSuperclass(); } throw new RuntimeException("Method '" + method + "' (static) with " + args.length + " parameter(s) not found in " + c.getName()); } static Method call_findMethod(Object o, String method, Object[] args, boolean debug) { Class c = o.getClass(); while (c != null) { for (Method m : c.getDeclaredMethods()) { if (debug) System.out.println("Checking method " + m.getName() + " with " + m.getParameterTypes().length + " parameters");; if (m.getName().equals(method) && call_checkArgs(m, args, debug)) return m; } c = c.getSuperclass(); } throw new RuntimeException("Method '" + method + "' (non-static) with " + args.length + " parameter(s) not found in " + o.getClass().getName()); } private static boolean call_checkArgs(Method m, Object[] args, boolean debug) { Class[] types = m.getParameterTypes(); if (types.length != args.length) { if (debug) System.out.println("checkArgs: Bad parameter length: " + args.length + " vs " + types.length); return false; } for (int i = 0; i < types.length; i++) if (!(args[i] == null || isInstanceX(types[i], args[i]))) { if (debug) System.out.println("checkArgs: Bad parameter " + i + ": " + args[i] + " vs " + types[i]); return false; } return true; } private static FileInputStream newFileInputStream(File f) throws FileNotFoundException { /*if (androidContext != null) return (FileInputStream) call(androidContext, "openFileInput", f.getPath()); else*/ return new // line break for Dumb TinyBrain :) FileInputStream(f); } private static FileOutputStream newFileOutputStream(File f) throws FileNotFoundException { /*if (androidContext != null) return (FileOutputStream) call(androidContext, "openFileOutput", f.getPath(), 0); else*/ return new // line break for Dumb TinyBrain :) FileOutputStream(f); } public static void copy(InputStream in, OutputStream out) throws IOException { byte[] buf = new byte[65536]; while (true) { int n = in.read(buf); if (n <= 0) return; out.write(buf, 0, n); } } /** writes safely (to temp file, then rename) */ public static void saveTextFile(String fileName, String contents) throws IOException { File file = new File(fileName); File parentFile = file.getParentFile(); if (parentFile != null) parentFile.mkdirs(); String tempFileName = fileName + "_temp"; FileOutputStream fileOutputStream = newFileOutputStream(new File(tempFileName)); OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, charsetForTextFiles); PrintWriter printWriter = new PrintWriter(outputStreamWriter); printWriter.print(contents); printWriter.close(); if (file.exists() && !file.delete()) throw new IOException("Can't delete " + fileName); if (!new File(tempFileName).renameTo(file)) throw new IOException("Can't rename " + tempFileName + " to " + fileName); } /** writes safely (to temp file, then rename) */ public static void saveBinaryFile(String fileName, byte[] contents) throws IOException { File file = new File(fileName); File parentFile = file.getParentFile(); if (parentFile != null) parentFile.mkdirs(); String tempFileName = fileName + "_temp"; FileOutputStream fileOutputStream = newFileOutputStream(new File(tempFileName)); fileOutputStream.write(contents); fileOutputStream.close(); if (file.exists() && !file.delete()) throw new IOException("Can't delete " + fileName); if (!new File(tempFileName).renameTo(file)) throw new IOException("Can't rename " + tempFileName + " to " + fileName); } public static String loadTextFile(String fileName) { try { return loadTextFile(fileName, null); } catch (IOException e) { throw new RuntimeException(e); } } public static String loadTextFile(String fileName, String defaultContents) throws IOException { if (!new File(fileName).exists()) return defaultContents; FileInputStream fileInputStream = new FileInputStream(fileName); InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, "UTF-8"); return loadTextFile(inputStreamReader); } public static String loadTextFile(File fileName) { try { return loadTextFile(fileName, null); } catch (IOException e) { throw new RuntimeException(e); } } public static String loadTextFile(File fileName, String defaultContents) throws IOException { try { return loadTextFile(fileName.getPath(), defaultContents); } catch (IOException e) { throw new RuntimeException(e); } } public static String loadTextFile(Reader reader) throws IOException { StringBuilder builder = new StringBuilder(); try { char[] buffer = new char[1024]; int n; while (-1 != (n = reader.read(buffer))) builder.append(buffer, 0, n); } finally { reader.close(); } return builder.toString(); } // loadTextFile static File DiskSnippetCache_dir; public static void initDiskSnippetCache(File dir) { DiskSnippetCache_dir = dir; dir.mkdirs(); } // Data files are immutable, use centralized cache public static synchronized File DiskSnippetCache_getLibrary(long snippetID) throws IOException { File file = new File(getGlobalCache(), "data_" + snippetID + ".jar"); if (verbose) System.out.println("Checking data cache: " + file.getPath()); return file.exists() ? file : null; } public static synchronized String DiskSnippetCache_get(long snippetID) throws IOException { return loadTextFile(DiskSnippetCache_getFile(snippetID).getPath(), null); } private static File DiskSnippetCache_getFile(long snippetID) { return new File(DiskSnippetCache_dir, "" + snippetID); } public static synchronized void DiskSnippetCache_put(long snippetID, String snippet) throws IOException { saveTextFile(DiskSnippetCache_getFile(snippetID).getPath(), snippet); } public static synchronized void DiskSnippetCache_putLibrary(long snippetID, byte[] data) throws IOException { saveBinaryFile(new File(getGlobalCache(), "data_" + snippetID).getPath() + ".jar", data); } public static File DiskSnippetCache_getDir() { return DiskSnippetCache_dir; } public static void initSnippetCache() { if (DiskSnippetCache_dir == null) initDiskSnippetCache(getGlobalCache()); } private static File getGlobalCache() { File file = new File(userHome(), ".tinybrain/snippet-cache"); file.mkdirs(); return file; } public static String loadSnippetVerified(String snippetID, String hash) throws IOException { String text = loadSnippet(snippetID); String realHash = getHash(text.getBytes("UTF-8")); if (!realHash.equals(hash)) { String msg; if (hash.isEmpty()) msg = "Here's your hash for " + snippetID + ", please put in your program: " + realHash; else msg = "Hash mismatch for " + snippetID + ": " + realHash + " (new) vs " + hash + " - has tinybrain.de been hacked??"; throw new RuntimeException(msg); } return text; } public static String getHash(byte[] data) { return bytesToHex(getFullFingerprint(data)); } public static byte[] getFullFingerprint(byte[] data) { try { return MessageDigest.getInstance("MD5").digest(data); } catch (NoSuchAlgorithmException e) { throw new RuntimeException(e); } } public static String bytesToHex(byte[] bytes) { return bytesToHex(bytes, 0, bytes.length); } public static String bytesToHex(byte[] bytes, int ofs, int len) { StringBuilder stringBuilder = new StringBuilder(len*2); for (int i = 0; i < len; i++) { String s = "0" + Integer.toHexString(bytes[ofs+i]); stringBuilder.append(s.substring(s.length()-2, s.length())); } return stringBuilder.toString(); } public static String loadSnippet(String snippetID) throws IOException { return loadSnippet(parseSnippetID(snippetID)); } public static long parseSnippetID(String snippetID) { return Long.parseLong(shortenSnippetID(snippetID)); } private static String shortenSnippetID(String snippetID) { if (snippetID.startsWith("#")) snippetID = snippetID.substring(1); String httpBlaBla = "http://tinybrain.de/"; if (snippetID.startsWith(httpBlaBla)) snippetID = snippetID.substring(httpBlaBla.length()); return snippetID; } public static boolean isSnippetID(String snippetID) { snippetID = shortenSnippetID(snippetID); return isInteger(snippetID) && Long.parseLong(snippetID) != 0; } public static boolean isInteger(String s) { return Pattern.matches("\\-?\\d+", s); } public static String loadSnippet(long snippetID) throws IOException { String text = memSnippetCache.get(snippetID); if (text != null) { if (verbose) System.out.println("Getting " + snippetID + " from mem cache"); return text; } initSnippetCache(); text = DiskSnippetCache_get(snippetID); if (preferCached && text != null) { if (verbose) System.out.println("Getting " + snippetID + " from disk cache (preferCached)"); return text; } String md5 = text != null ? md5(text) : "-"; if (text != null) { String hash = prefetched.get(snippetID); if (hash != null) { if (md5.equals(hash)) { memSnippetCache.put(snippetID, text); if (verbose) System.out.println("Getting " + snippetID + " from prefetched"); return text; } else prefetched.remove(snippetID); // (maybe this is not necessary) } } try { /*URL url = new URL("http://tinybrain.de:8080/getraw.php?id=" + snippetID); text = loadPage(url);*/ String theURL = "http://tinybrain.de:8080/getraw.php?id=" + snippetID + "&getmd5=1&utf8=1&usetranspiled=1"; if (text != null) { //System.err.println("MD5: " + md5); theURL += "&md5=" + md5; } URL url = new URL(theURL); String page = loadPage(url); // parse & drop transpilation flag available line int i = page.indexOf('\n'); boolean hasTranspiled = page.substring(0, i).trim().equals("1"); if (hasTranspiled) hasTranspiledSet.add(snippetID); else hasTranspiledSet.remove(snippetID); page = page.substring(i+1); if (page.startsWith("==*#*==")) { // same, keep text //System.err.println("Snippet unchanged, keeping."); } else { // drop md5 line i = page.indexOf('\n'); String hash = page.substring(0, i).trim(); text = page.substring(i+1); String myHash = md5(text); if (myHash.equals(hash)) { //System.err.println("Hash match: " + hash); } else System.err.println("Hash mismatch"); } } catch (FileNotFoundException e) { e.printStackTrace(); throw new IOException("Snippet #" + snippetID + " not found or not public"); } memSnippetCache.put(snippetID, text); try { initSnippetCache(); DiskSnippetCache_put(snippetID, text); } catch (IOException e) { System.err.println("Minor warning: Couldn't save snippet to cache (" + DiskSnippetCache_getDir() + ")"); } return text; } private static String md5(String text) { try { return bytesToHex(md5impl(text.getBytes("UTF-8"))); // maybe different than the way PHP does it... } catch (UnsupportedEncodingException e) { throw new RuntimeException(e); } } public static byte[] md5impl(byte[] data) { try { return MessageDigest.getInstance("MD5").digest(data); } catch (NoSuchAlgorithmException e) { throw new RuntimeException(e); } } private static String loadPage(URL url) throws IOException { System.err.println("Loading: " + url.toExternalForm()); URLConnection con = url.openConnection(); return loadPage(con, url); } public static String loadPage(URLConnection con, URL url) throws IOException { setHeaders(con); String contentType = con.getContentType(); if (contentType == null) throw new IOException("Page could not be read: " + url); //Log.info("Content-Type: " + contentType); String charset = guessCharset(contentType); //System.err.println("Charset: " + charset); Reader r = new InputStreamReader(con.getInputStream(), charset); StringBuilder buf = new StringBuilder(); while (true) { int ch = r.read(); if (ch < 0) break; //Log.info("Chars read: " + buf.length()); buf.append((char) ch); } return buf.toString(); } public static byte[] loadBinaryPage(URLConnection con) throws IOException { setHeaders(con); return loadBinaryPage_noHeaders(con); } private static byte[] loadBinaryPage_noHeaders(URLConnection con) throws IOException { ByteArrayOutputStream buf = new ByteArrayOutputStream(); InputStream inputStream = con.getInputStream(); while (true) { int ch = inputStream.read(); if (ch < 0) break; buf.write(ch); } inputStream.close(); return buf.toByteArray(); } private static void setHeaders(URLConnection con) throws IOException { String computerID = getComputerID(); if (computerID != null) con.setRequestProperty("X-ComputerID", computerID); } public static String guessCharset(String contentType) { Pattern p = Pattern.compile("text/html;\\s+charset=([^\\s]+)\\s*"); Matcher m = p.matcher(contentType); /* If Content-Type doesn't match this pre-conception, choose default and hope for the best. */ return m.matches() ? m.group(1) : "ISO-8859-1"; } /** runs a transpiled set of sources */ public static void javax2(File srcDir, File ioBaseDir, boolean silent, boolean runInProcess, List libraries, String[] args, String cacheAs, String programID, Info info) throws Exception { if (android) javax2android(srcDir, args, programID); else { File classesDir = TempDirMaker_make(); String javacOutput = compileJava(srcDir, libraries, classesDir); // run if (verbose) System.out.println("Running program (" + srcDir.getAbsolutePath() + ") on io dir " + ioBaseDir.getAbsolutePath() + (runInProcess ? "[in-process]" : "") + "\n"); runProgram(javacOutput, classesDir, ioBaseDir, silent, runInProcess, libraries, args, cacheAs, programID, info); } } static Class loadx2android(File srcDir, String programID) throws Exception { // TODO: optimize if it's a loaded snippet anyway URL url = new URL("http://tinybrain.de:8080/dexcompile.php"); URLConnection conn = url.openConnection(); String postData = "src=" + URLEncoder.encode(loadTextFile(new File(srcDir, "main.java").getPath(), null), "UTF-8"); byte[] dexData = doPostBinary(postData, conn); if (!isDex(dexData)) throw new RuntimeException("Dex generation error: " + dexData.length + " bytes - " + new String(dexData, "UTF-8")); System.out.println("Dex loaded: " + dexData.length + "b"); File dexDir = TempDirMaker_make(); File dexFile = new File(dexDir, System.currentTimeMillis() + ".dex"); File dexOutputDir = TempDirMaker_make(); System.out.println("Saving dex to: " + dexDir.getAbsolutePath()); try { saveBinaryFile(dexFile.getPath(), dexData); } catch (Throwable e) { System.out.println("Whoa!"); throw new RuntimeException(e); } System.out.println("Getting parent class loader."); ClassLoader parentClassLoader = //ClassLoader.getSystemClassLoader(); // does not find support jar //getClass().getClassLoader(); // Let's try this... x26.class.getClassLoader().getParent(); // XXX ! //System.out.println("Making DexClassLoader."); //DexClassLoader classLoader = new DexClassLoader(dexFile.getAbsolutePath(), dexOutputDir.getAbsolutePath(), null, // parentClassLoader); Class dcl = Class.forName("dalvik.system.DexClassLoader"); Object classLoader = dcl.getConstructors()[0].newInstance(dexFile.getAbsolutePath(), dexOutputDir.getAbsolutePath(), null, parentClassLoader); //System.out.println("Loading main class."); //Class theClass = classLoader.loadClass(mainClassName); Class theClass = (Class) call(classLoader, "loadClass", "main"); //System.out.println("Main class loaded."); try { set(theClass, "androidContext", androidContext); } catch (Throwable e) {} setVars(theClass, programID); return theClass; } static void javax2android(File srcDir, String[] args, String programID) throws Exception { Class theClass = loadx2android(srcDir, programID); Method main = null; try { main = call_findStaticMethod(theClass, "main", new Object[]{androidContext}, false); } catch (RuntimeException e) { } //System.out.println("main method for " + androidContext + " of " + theClass + ": " + main); if (main != null) { // old style main program that returns a View System.out.println("Calling main (old-style)"); Object view = main.invoke(null, androidContext); System.out.println("Calling setContentView with " + view); call(Class.forName("main"), "setContentViewInUIThread", view); //call(androidContext, "setContentView", view); System.out.println("Done."); } else { System.out.println("New-style main method running.\n\n====\n"); runMainMethod(args, theClass); } } static byte[] DEX_FILE_MAGIC = { 0x64, 0x65, 0x78, 0x0a, 0x30, 0x33, 0x35, 0x00 }; static boolean isDex(byte[] dexData) { if (dexData.length < DEX_FILE_MAGIC.length) return false; for (int i = 0; i < DEX_FILE_MAGIC.length; i++) if (dexData[i] != DEX_FILE_MAGIC[i]) return false; return true; } static byte[] doPostBinary(String urlParameters, URLConnection conn) throws IOException { // connect and do POST setHeaders(conn); conn.setDoOutput(true); OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream()); writer.write(urlParameters); writer.flush(); byte[] contents = loadBinaryPage_noHeaders(conn); writer.close(); return contents; } static String compileJava(File srcDir, List libraries, File classesDir) throws IOException { ++compilations; // collect sources List sources = new ArrayList(); if (verbose) System.out.println("Scanning for sources in " + srcDir.getPath()); scanForSources(srcDir, sources, true); if (sources.isEmpty()) throw new IOException("No sources found"); // compile File optionsFile = File.createTempFile("javax", ""); if (verbose) System.out.println("Compiling " + sources.size() + " source(s) to " + classesDir.getPath()); if (verbose) System.out.println("Libraries: " + libraries); String options = "-d " + bashQuote(classesDir.getPath()); writeOptions(sources, libraries, optionsFile, options); classesDir.mkdirs(); return invokeJavaCompiler(optionsFile); } private static void runProgram(String javacOutput, File classesDir, File ioBaseDir, boolean silent, boolean runInProcess, List libraries, String[] args, String cacheAs, String programID, Info info) throws Exception { // print javac output if compile failed and it hasn't been printed yet if (info != null) { info.programID = programID; info.programArgs = args; } boolean didNotCompile = !didCompile(classesDir); if (verbose || didNotCompile) System.out.println(javacOutput); if (didNotCompile) return; if (runInProcess || (ioBaseDir.getAbsolutePath().equals(new File(".").getAbsolutePath()) && !silent)) { runProgramQuick(classesDir, libraries, args, cacheAs, programID, info); return; } boolean echoOK = false; // TODO: add libraries to class path String bashCmd = "(cd " + bashQuote(ioBaseDir.getAbsolutePath()) + " && (java -cp " + bashQuote(classesDir.getAbsolutePath()) + " main" + (echoOK ? "; echo ok" : "") + "))"; if (verbose) System.out.println(bashCmd); String output = backtick(bashCmd); lastOutput = output; if (verbose || !silent) System.out.println(output); } static boolean didCompile(File classesDir) { return hasFile(classesDir, "main.class"); } private static void runProgramQuick(File classesDir, List libraries, String[] args, String cacheAs, String programID, Info info) throws Exception { // collect urls URL[] urls = new URL[libraries.size()+1]; urls[0] = classesDir.toURI().toURL(); for (int i = 0; i < libraries.size(); i++) urls[i+1] = libraries.get(i).toURI().toURL(); // make class loader URLClassLoader classLoader = new URLClassLoader(urls); // load JavaX main class Class mainClass = classLoader.loadClass("main"); if (info != null) info.mainClass = mainClass; if (cacheAs != null) programCache.put(cacheAs, mainClass); setVars(mainClass, programID); runMainMethod(args, mainClass); } static void setVars(Class theClass, String programID) { try { set(theClass, "programID", programID); } catch (Throwable e) {} try { set(theClass, "__javax", x26.class); } catch (Throwable e) {} } static void runMainMethod(Object args, Class mainClass) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException { Method main = mainClass.getMethod("main", String[].class); main.invoke(null, args); } private static String invokeJavaCompiler(File optionsFile) throws IOException { String output; if (hasEcj() && !javacOnly) output = invokeEcj(optionsFile); else output = invokeJavac(optionsFile); if (verbose) System.out.println(output); return output; } private static boolean hasEcj() { try { Class.forName("org.eclipse.jdt.internal.compiler.batch.Main"); return true; } catch (ClassNotFoundException e) { return false; } } private static String invokeJavac(File optionsFile) throws IOException { String output; output = backtick("javac " + bashQuote("@" + optionsFile.getPath())); if (exitValue != 0) { System.out.println(output); throw new RuntimeException("javac returned errors."); } return output; } // throws ClassNotFoundException if ecj is not in classpath static String invokeEcj(File optionsFile) { try { StringWriter writer = new StringWriter(); PrintWriter printWriter = new PrintWriter(writer); // add more eclipse options in the line below String[] args = {"@" + optionsFile.getPath(), "-source", "1.7", "-nowarn" }; Class ecjClass = Class.forName("org.eclipse.jdt.internal.compiler.batch.Main"); Object main = newInstance(ecjClass, printWriter, printWriter, false); call(main, "compile", new Object[]{args}); int errors = (Integer) get(main, "globalErrorsCount"); String output = writer.toString(); if (errors != 0) { System.out.println(output); throw new RuntimeException("Java compiler returned errors."); } return output; } catch (Exception e) { throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e); } } static Object get(Object o, String field) { try { Field f = findField(o.getClass(), field); f.setAccessible(true); return f.get(o); } catch (Exception e) { throw new RuntimeException(e); } } static Object newInstance(Class c, Object... args) { try { Constructor m = findConstructor(c, args); m.setAccessible(true); return m.newInstance(args); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} static Constructor findConstructor(Class c, Object... args) { for (Constructor m : c.getDeclaredConstructors()) { if (!checkArgs(m.getParameterTypes(), args, verbose)) continue; return m; } throw new RuntimeException("Constructor with " + args.length + " matching parameter(s) not found in " + c.getName()); } static boolean checkArgs(Class[] types, Object[] args, boolean debug) { if (types.length != args.length) { if (debug) System.out.println("Bad parameter length: " + args.length + " vs " + types.length); return false; } for (int i = 0; i < types.length; i++) if (!(args[i] == null || isInstanceX(types[i], args[i]))) { if (debug) System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]); return false; } return true; } // extended to handle primitive types private static boolean isInstanceX(Class type, Object arg) { if (type == boolean.class) return arg instanceof Boolean; if (type == int.class) return arg instanceof Integer; if (type == long.class) return arg instanceof Long; if (type == float.class) return arg instanceof Float; if (type == short.class) return arg instanceof Short; if (type == char.class) return arg instanceof Character; if (type == byte.class) return arg instanceof Byte; return type.isInstance(arg); } private static void writeOptions(List sources, List libraries, File optionsFile, String moreOptions) throws IOException { FileWriter writer = new FileWriter(optionsFile); for (File source : sources) writer.write(bashQuote(source.getPath()) + " "); if (!libraries.isEmpty()) { List cp = new ArrayList(); for (File lib : libraries) cp.add(lib.getAbsolutePath()); writer.write("-cp " + bashQuote(join(File.pathSeparator, cp)) + " "); } writer.write(moreOptions); writer.close(); } static void scanForSources(File source, List sources, boolean topLevel) { if (source.isFile() && source.getName().endsWith(".java")) sources.add(source); else if (source.isDirectory() && !isSkippedDirectoryName(source.getName(), topLevel)) { File[] files = source.listFiles(); for (File file : files) scanForSources(file, sources, false); } } private static boolean isSkippedDirectoryName(String name, boolean topLevel) { if (topLevel) return false; // input or output ok as highest directory (intentionally specified by user, not just found by a directory scan in which case we probably don't want it. it's more like heuristics actually.) return name.equalsIgnoreCase("input") || name.equalsIgnoreCase("output"); } static int exitValue; public static String backtick(String cmd) throws IOException { ++processesStarted; File outFile = File.createTempFile("_backtick", ""); File scriptFile = File.createTempFile("_backtick", isWindows() ? ".bat" : ""); String command = cmd + " >" + bashQuote(outFile.getPath()) + " 2>&1"; //Log.info("[Backtick] " + command); try { saveTextFile(scriptFile.getPath(), command); String[] command2; if (isWindows()) command2 = new String[] { scriptFile.getPath() }; else command2 = new String[] { "/bin/bash", scriptFile.getPath() }; Process process = Runtime.getRuntime().exec(command2); try { process.waitFor(); } catch (InterruptedException e) { throw new RuntimeException(e); } exitValue = process.exitValue(); if (verbose) System.out.println("Process return code: " + exitValue); return loadTextFile(outFile.getPath(), ""); } finally { scriptFile.delete(); } } /** possibly improvable */ public static String javaQuote(String text) { return bashQuote(text); } /** possibly improvable */ public static String bashQuote(String text) { if (text == null) return null; return "\"" + text .replace("\\", "\\\\") .replace("\"", "\\\"") .replace("\n", "\\n") .replace("\r", "\\r") + "\""; } public final static String charsetForTextFiles = "UTF8"; static long TempDirMaker_lastValue; public static File TempDirMaker_make() { File dir = new File(userHome(), ".javax/" + TempDirMaker_newValue()); dir.mkdirs(); return dir; } private static long TempDirMaker_newValue() { long value; do value = System.currentTimeMillis(); while (value == TempDirMaker_lastValue); TempDirMaker_lastValue = value; return value; } public static String join(String glue, Iterable strings) { StringBuilder buf = new StringBuilder(); Iterator i = strings.iterator(); if (i.hasNext()) { buf.append(i.next()); while (i.hasNext()) buf.append(glue).append(i.next()); } return buf.toString(); } public static String join(String glue, String[] strings) { return join(glue, Arrays.asList(strings)); } public static String join(Iterable strings) { return join("", strings); } public static String join(String[] strings) { return join("", strings); } // join public static boolean isWindows() { return System.getProperty("os.name").contains("Windows"); } public static String makeRandomID(int length) { Random random = new Random(); char[] id = new char[length]; for (int i = 0; i< id.length; i++) id[i] = (char) ((int) 'a' + random.nextInt(26)); return new String(id); } static String computerID; public static String getComputerID() throws IOException { if (noID) return null; if (computerID == null) { File file = new File(userHome(), ".tinybrain/computer-id"); computerID = loadTextFile(file.getPath(), null); if (computerID == null) { computerID = makeRandomID(12); saveTextFile(file.getPath(), computerID); } if (verbose) System.out.println("Local computer ID: " + computerID); } return computerID; } static int fileDeletions; static void cleanCache() { try { if (verbose) System.out.println("Cleaning cache"); fileDeletions = 0; File javax = new File(userHome(), ".javax"); long now = System.currentTimeMillis(); File[] files = javax.listFiles(); if (files != null) for (File dir : files) { if (dir.isDirectory() && Pattern.compile("\\d+").matcher(dir.getName()).matches()) { long time = Long.parseLong(dir.getName()); long seconds = (now - time) / 1000; long minutes = seconds / 60; long hours = minutes / 60; if (hours >= tempFileRetentionTime) { //System.out.println("Can delete " + dir.getAbsolutePath() + ", age: " + hours + " h"); removeDir(dir); } } } if (verbose && fileDeletions != 0) System.out.println("Cleaned cache. File deletions: " + fileDeletions); } catch (Throwable e) { e.printStackTrace(); } } static void removeDir(File dir) { if (dir.getAbsolutePath().indexOf(".javax") < 0) // security check! return; for (File f : dir.listFiles()) { if (f.isDirectory()) removeDir(f); else { if (verbose) System.out.println("Deleting " + f.getAbsolutePath()); f.delete(); ++fileDeletions; } } dir.delete(); } static void showSystemProperties() { System.out.println("System properties:\n"); for (Map.Entry entry : System.getProperties().entrySet()) { System.out.println(" " + entry.getKey() + " = " + entry.getValue()); } System.out.println(); } static void showVersion() { //showSystemProperties(); boolean eclipseFound = hasEcj(); //String platform = System.getProperty("java.vendor") + " " + System.getProperty("java.runtime.name") + " " + System.getProperty("java.version"); String platform = System.getProperty("java.vm.name") + " " + System.getProperty("java.version"); String os = System.getProperty("os.name"), arch = System.getProperty("os.arch"); System.out.println("This is " + version + "."); System.out.println("[Details: " + (eclipseFound ? "Eclipse compiler (good)" : "javac (not so good)") + ", " + platform + ", " + arch + ", " + os + "]"); } static boolean isAndroid() { return System.getProperty("java.vendor").toLowerCase().indexOf("android") >= 0; } static void set(Class c, String field, Object value) { try { Field f = findStaticField(c, field); f.setAccessible(true); f.set(null, value); } catch (Exception e) { throw new RuntimeException(e); } } static Field findStaticField(Class c, String field) { for (Field f : c.getDeclaredFields()) if (f.getName().equals(field) && (f.getModifiers() & Modifier.STATIC) != 0) return f; throw new RuntimeException("Static field '" + field + "' not found in " + c.getName()); } static Field findField(Class c, String field) { for (Field f : c.getDeclaredFields()) if (f.getName().equals(field)) return f; throw new RuntimeException("Field '" + field + "' not found in " + c.getName()); } static String smartJoin(String[] args) { String[] a2 = new String[args.length]; for (int i = 0; i < args.length; i++) { a2[i] = Pattern.compile("\\w+").matcher(args[i]).matches() ? args[i] : quote(args[i]); } return join(" ", a2); } static void logStart(String[] args) throws IOException { String line = smartJoin(args); appendToLog(new File(userHome(), ".javax/log.txt").getPath(), line); } static String quote(String s) { if (s == null) return "null"; return "\"" + s.replace("\\", "\\\\").replace("\"", "\\\"").replace("\r", "\\r").replace("\n", "\\n") + "\""; } static void appendToLog(String path, String line) throws IOException { appendToFile(path, "\n" + line + "\n"); } static void appendToFile(String path, String s) throws IOException { new File(path).getParentFile().mkdirs(); Writer writer = new BufferedWriter(new OutputStreamWriter( new FileOutputStream(path, true), "UTF-8")); writer.write(s); writer.close(); } static class DelayedUpdate { Runnable renderer; volatile long version; long lastUpdate; // AWT time int delay = 1000; DelayedUpdate(Runnable renderer) { this.renderer = renderer;} void trigger() { SwingUtilities.invokeLater(new Runnable() { public void run() { try { awt_quickUpdate(); } catch (Exception _e) { throw _e instanceof RuntimeException ? (RuntimeException) _e : new RuntimeException(_e); } } }); final long n = ++version; javax.swing.Timer timer = new javax.swing.Timer(delay, new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) { awt_show(n); }}); timer.setRepeats(false); timer.start(); } void awt_quickUpdate() { if (lastUpdate < now()-delay) { render(); lastUpdate = now(); // This can be rough, no problem } } void awt_show(long n) { if (n == version) { render(); lastUpdate = now(); } } void render() { try { renderer.run(); } catch (Throwable e) { e.printStackTrace(); } } } static PrintStream oldOut, oldErr; static Thread reader, reader2; static boolean quit; // always false now static PipedInputStream pin=new PipedInputStream(); static PipedInputStream pin2=new PipedInputStream(); static PipedInputStream pin3=new PipedInputStream(); static class Console extends WindowAdapter implements WindowListener, ActionListener { JFrame frame; JTextArea textArea; JTextField tfInput; StringBuffer buf = new StringBuffer(); JButton buttonclear, buttonkill, buttonrestart, buttonduplicate, buttonstacktrace; String[] args; final DelayedUpdate du = new DelayedUpdate(new Runnable() { public void run() { try { textArea.append(buf.substring(textArea.getText().length())); } catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}}); public Console(final String[] args) { try { this.args = args; // create all components and add them frame=new JFrame(args.length == 0 ? "JavaX Starter Output" : "JavaX Output - " + join(" ", args)); /*Dimension screenSize=Toolkit.getDefaultToolkit().getScreenSize(); Dimension frameSize=new Dimension((int)(screenSize.width/2),(int)(screenSize.height/2)); int x=(int)(frameSize.width/2); int y=(int)(frameSize.height/2); frame.setBounds(x,y,frameSize.width,frameSize.height);*/ // put in right-bottom corner Rectangle r = GraphicsEnvironment.getLocalGraphicsEnvironment().getMaximumWindowBounds(); int w = 550, h = 200; frame.setBounds(r.x+r.width-w, r.y+r.height-h, w, h); textArea=new JTextArea(); textArea.setEditable(false); buttonclear = new JButton("clear"); buttonkill = new JButton("kill"); buttonrestart = new JButton("restart"); buttonduplicate = new JButton("duplicate"); buttonstacktrace = new JButton("status"); buttonstacktrace.setToolTipText("Show threads & stack traces."); JPanel buttons = new JPanel(new GridLayout(1, 5)); buttons.add(buttonclear); buttons.add(buttonkill); buttons.add(buttonrestart); buttons.add(buttonduplicate); buttons.add(buttonstacktrace); final PipedOutputStream pout3=new PipedOutputStream(pin3); tfInput = new JTextField(); tfInput.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent _evt) { String line = tfInput.getText(); try { pout3.write((line + "\n").getBytes("UTF-8")); pout3.flush(); } catch (Exception e) {} tfInput.setText(""); }}); JPanel panel = new JPanel(new BorderLayout()); panel.add(new JScrollPane(textArea), BorderLayout.CENTER); panel.add(tfInput, BorderLayout.SOUTH); frame.addWindowListener(new WindowAdapter() { public void windowActivated(WindowEvent e) { tfInput.requestFocus(); } }); frame.getContentPane().setLayout(new BorderLayout()); frame.getContentPane().add(panel, BorderLayout.CENTER); frame.getContentPane().add(buttons, BorderLayout.SOUTH); frame.setVisible(true); //frame.addWindowListener(this); // disabled for now buttonclear.addActionListener(this); buttonkill.addActionListener(this); buttonrestart.addActionListener(this); buttonduplicate.addActionListener(this); buttonstacktrace.addActionListener(this); quit=false; // signals the Threads that they should exit if (args.length != 0) { print("Starting title updater"); new Thread("Console Title Updater :)") { public void run() { if (args.length != 0) { print("Getting title for " + args[0]); String title = getSnippetTitle(args[0]); print("Title: " + title); if (title != null && title.length() != 0) frame.setTitle(title + " [Output]"); } } }.start(); } System.setIn(pin3); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} public synchronized void windowClosed(WindowEvent evt) { console = null; /*quit=true; this.notifyAll(); // stop all threads try { reader.join(1000);pin.close(); } catch (Exception e){} try { reader2.join(1000);pin2.close(); } catch (Exception e){} System.exit(0);*/ } public synchronized void windowClosing(WindowEvent evt) { frame.setVisible(false); // default behaviour of JFrame frame.dispose(); } public synchronized void actionPerformed(ActionEvent evt) { if (evt.getSource() == buttonkill) { print("Console: Kill button pressed!"); // TODO: give threads time to finish, e.g. reportToChat? System.exit(0); } else if (evt.getSource() == buttonrestart) { print("Console: Restart button pressed."); nohupJavax(smartJoin(args)); System.exit(0); } else if (evt.getSource() == buttonduplicate) { print("Console: Duplicate button pressed."); nohupJavax(smartJoin(args)); } else if (evt.getSource() == buttonstacktrace) { listUserThreadsWithStackTraces(); } else { textArea.setText(""); buf = new StringBuffer(); } } public void appendText(String s, boolean outNotErr) { if (verbose) oldOut.println("Console appendText " + outNotErr + " " + quote(s)); buf.append(s); du.trigger(); } } // Console static void tryToOpenConsole(String[] args) { try { console = new Console(args); } catch (HeadlessException e) { // ok, we're headless. } catch (Throwable e) { // some other error in console - continue without it e.printStackTrace(); } } //// END CONSOLE STUFF static long now_virtualTime; static long now() { return now_virtualTime != 0 ? now_virtualTime : System.currentTimeMillis(); } static void print(Object o) { System.out.println(o); } public synchronized void run() { try { while (Thread.currentThread()==reader) { try { this.wait(100);}catch(InterruptedException ie) {} if (pin.available()!=0) { String input=readLine(pin); if (verbose) oldOut.println("reader: " + quote(input)); appendText(input, true); } if (quit) return; } while (Thread.currentThread()==reader2) { try { this.wait(100);}catch(InterruptedException ie) {} if (pin2.available()!=0) { String input=readLine(pin2); if (verbose) oldOut.println("reader2: " + quote(input)); appendText(input, false); } if (quit) return; } } catch (Exception e) { appendText("\nConsole reports an Internal error.", false); appendText("The error is: "+e, false); } } static void redirectSystemOutAndErr() { if (reader != null) return; // did this already x26 _this = new x26(); if (verbose) System.out.println("Redirecting System.out"); try { PipedOutputStream pout=new PipedOutputStream(pin); oldOut = System.out; TeeOutputStream tee = new TeeOutputStream(oldOut, pout); System.setOut(new PrintStream(tee,true)); } catch (Exception io) { System.err.println("Couldn't redirect STDOUT - " + io.getMessage()); } if (verbose) System.out.println("Redirecting System.err"); try { PipedOutputStream pout2=new PipedOutputStream(pin2); oldErr = System.err; TeeOutputStream tee = new TeeOutputStream(oldErr, pout2); System.setErr(new PrintStream(tee,true)); } catch (Exception io) { System.err.println("Couldn't redirect STDERR - " + io.getMessage()); } if (verbose) System.out.println("Redirects done. Starting readers"); // Starting two seperate threads to read from the PipedInputStreams // reader=new Thread(_this, "StdOut Piper"); reader.setDaemon(true); reader.start(); // reader2 = new Thread(_this, "StdErr Piper"); reader2.setDaemon(true); reader2.start(); } static Appendable customSystemOut; static void appendText(String s, boolean outNotErr) { // We do this with a TeeOutputStream now (safer). // (outNotErr ? oldOut : oldErr).print(s); if (console != null) console.appendText(s, outNotErr); if (customSystemOut != null) try { customSystemOut.append(s); } catch (IOException e) { e.printStackTrace(); } } static String readLine(PipedInputStream in) throws IOException { String input=""; do { int available=in.available(); if (available==0) break; byte b[]=new byte[available]; in.read(b); input=input+new String(b,0,b.length); }while( !input.endsWith("\n") && !input.endsWith("\r\n") && !quit); return input; } static void nohupJavax(String javaxargs) { try { File xfile = new File(userHome(), ".javax/x26.jar"); if (!xfile.isFile()) { String url = "http://tinybrain.de/x26.jar"; byte[] data = loadBinaryPage(new URL(url).openConnection()); if (data.length < 1000000) throw new RuntimeException("Could not load " + url); saveBinaryFile(xfile.getPath(), data); } String jarPath = xfile.getPath(); nohup("java -jar " + (isWindows() ? winQuote(jarPath) : bashQuote(jarPath)) + " " + javaxargs); } catch (Exception e) { throw new RuntimeException(e); } } /** possibly improvable */ public static String winQuote(String text) { if (text == null) return null; return "\"" + text .replace("\\", "\\\\") .replace("\"", "\\\"") .replace("\n", "\\n") .replace("\r", "\\r") + "\""; } public static File nohup(String cmd) throws IOException { File outFile = File.createTempFile("nohup_" + nohup_sanitize(cmd), ".out"); nohup(cmd, outFile, false); return outFile; } static String nohup_sanitize(String s) { return s.replaceAll("[^a-zA-Z0-9\\-_]", ""); } /** outFile takes stdout and stderr. */ public static void nohup(String cmd, File outFile, boolean append) throws IOException { String command = nohup_makeNohupCommand(cmd, outFile, append); File scriptFile = File.createTempFile("_realnohup", isWindows() ? ".bat" : ""); System.out.println("[Nohup] " + command); try { //System.out.println("[RealNohup] Script file: " + scriptFile.getPath()); saveTextFile(scriptFile.getPath(), command); String[] command2; if (isWindows()) command2 = new String[] {"cmd", "/c", "start", "/b", scriptFile.getPath() }; else command2 = new String[] {"/bin/bash", scriptFile.getPath() }; Process process = Runtime.getRuntime().exec(command2); try { process.waitFor(); } catch (InterruptedException e) { throw new RuntimeException(e); } int value = process.exitValue(); //System.out.println("exit value: " + value); } finally { if (!isWindows()) scriptFile.delete(); } } public static String nohup_makeNohupCommand(String cmd, File outFile, boolean append) { mkdirsForFile(outFile); String command; if (isWindows()) command = cmd + (append ? " >>" : " >") + winQuote(outFile.getPath()) + " 2>&1"; else command = "nohup " + cmd + (append ? " >>" : " >") + bashQuote(outFile.getPath()) + " 2>&1 &"; return command; } public static void mkdirsForFile(File file) { File dir = file.getParentFile(); if (dir != null) // is null if file is in current dir dir.mkdirs(); } static void autoReportToChat() { if (customSystemOut == null) { print("Auto-reporting to chat."); customSystemOut = new Appendable() { LineBuf buf = new LineBuf(); // only using this one public Appendable append(CharSequence cs) { buf.append(cs.toString()); while (true) { String s = buf.nextLine(); if (s == null) break; reportToChat(s, true); } return this; } public Appendable append(char c) { return this; } public Appendable append(CharSequence s, int start, int end) { return this; } }; } } static class Q { LinkedBlockingQueue q = new LinkedBlockingQueue(); static class Done extends RuntimeException {} Q() {} Q(String name, boolean startThread) { if (startThread) new Thread(name) { public void run() { Q.this.run(); } }.start(); } Iterable master() { return new Iterable() { public Iterator iterator() { return new Iterator() { Runnable x; public boolean hasNext() { try { //debug("hasNext"); while (x == null) x = q.poll(1, TimeUnit.DAYS); //debug("hasNext true"); return true; } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} public Runnable next() { //debug("next"); hasNext(); Runnable _x = x; x = null; //debug("next " + structure(x)); return _x; } public void remove() { } }; } }; } void add(Runnable r) { q.add(r); } void run() { for (Runnable r : master()) { try { r.run(); } catch (Done e) { return; // break signal } catch (Throwable e) { e.printStackTrace(); } } } void done() { add(new Runnable() { public void run() { throw new Done(); } }); } } // class Q static void reportToChat(final String s, boolean silent) { if (s == null || s.length() == 0) return; if (!silent) print("reportToChat: " + quote(s)); reportToChat_getChatThread().add(new Runnable() { public void run() { try { startChatServerIfNotUp(); waitForChatServer(); chatSend(s); } catch (Exception __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }}}); } static Q reportToChat_q; static Q reportToChat_getChatThread() { if (reportToChat_q == null) reportToChat_q = new Q("reportToChat", true); return reportToChat_q; } static void startChatServerIfNotUp() { if (portIsBound(9751)) { //print("Chat seems to be up."); } else { nohupJavax("1000867"); print("Chat server should be coming up any minute now."); } } static void waitForChatServer() { if (!portIsBound(9751)) { //System.out.print("Waiting for chat server... "); do { sleep(1000); } while (!portIsBound(9751)); //print("OK."); } } static boolean portIsBound(int port) { try { ServerSocket s = new ServerSocket(port); s.close(); return false; } catch (IOException e) { return true; } } static class LineBuf { StringBuffer buf = new StringBuffer(); void append(String s) { buf.append(s); } String nextLine() { int i = buf.indexOf("\n"); if (i >= 0) { String s = buf.substring(0, i > 0 && buf.charAt(i-1) == '\r' ? i-1 : i); buf.delete(0, i+1); return s; } return null; } } // LineBuf static void sleep(long ms) { try { Thread.sleep(ms); } catch (Exception e) { throw new RuntimeException(e); } } static int chatSend_chatPort = 9751; static abstract class DialogIO { abstract boolean isStillConnected(); abstract String readLineNoBlock(); abstract boolean waitForLine(); abstract void sendLine(String line); abstract boolean isLocalConnection(); abstract Socket getSocket(); } static abstract class DialogHandler { abstract void run(DialogIO io); } // DialogIO static DialogIO chatSend_dialog; static String chatSend_id; static void chatSend(String line) { try { if (chatSend_dialog == null) { chatSend_dialog = talkTo("localhost", chatSend_chatPort); chatSend_dialog.waitForLine(); String l = chatSend_dialog.readLineNoBlock(); if (l.startsWith("Your ID: ")) chatSend_id = l.substring("Your ID: ".length()); } chatSend_dialog.sendLine(line); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} // chatSend static class TeeOutputStream extends OutputStream { protected OutputStream out, branch; public TeeOutputStream( OutputStream out, OutputStream branch ) { this.out = out; this.branch = branch; } @Override public synchronized void write(byte[] b) throws IOException { write(b, 0, b.length); } @Override public synchronized void write(byte[] b, int off, int len) throws IOException { //if (verbose) oldOut.println("Tee write " + new String(b, "UTF-8")); out.write(b, off, len); this.branch.write(b, off, len); } @Override public synchronized void write(int b) throws IOException { write(new byte[] {(byte) b}); } /** * Flushes both streams. * @throws IOException if an I/O error occurs */ @Override public void flush() throws IOException { out.flush(); this.branch.flush(); } /** * Closes both streams. * @throws IOException if an I/O error occurs */ @Override public void close() throws IOException { out.close(); this.branch.close(); } } static boolean isChatServer(String[] args) { for (int i = 0; i < args.length; i++) if (isSnippetID(args[i])) return parseSnippetID(args[i]) == 1000867; return false; } static String getSnippetTitle(String id) { try { return loadPage(new URL("http://tinybrain.de:8080/tb-int/getfield.php?id=" + parseSnippetID(id) + "&field=title")); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); } } static void listUserThreadsWithStackTraces() { print(""); Map threadMap = Thread.getAllStackTraces(); int n = 0; for (Thread t : threadMap.keySet()) { ThreadGroup g = t.getThreadGroup(); if (g != null && g.getName().equals("system")) continue; ++n; print(t); for (StackTraceElement e : threadMap.get(t)) { print(" " + e); } print(""); } print(n + " user threads."); } static void killMyself() { print("Killing myself. (insert overall feeling here)"); System.exit(0); } static void makeVMAndroid() { makeAndroidNoConsole("This is a JavaX VM.", new StringFunc() { public String get(String s) { try { return answer(s) ; } catch (Exception _e) { throw _e instanceof RuntimeException ? (RuntimeException) _e : new RuntimeException(_e); } } }); } static class Info { String programID; String[] programArgs; File transpiledSrc; Class mainClass; } static Info info = new Info(); static synchronized String answer(String s) { Matches m = new Matches(); if (match3("kill!", s)) { killMyself(); return "ok"; } if (match3("What is your process ID?", s) || match3("what is your pid?", s)) return getPID(); if (match3("what is your program id?", s)) return info.programID; if (match3("what are your program arguments?", s)) return structure(info.programArgs); if (match3("get fields of main class", s)) return structure(listFields(info.mainClass)); if (match3("get field * of main class", s, m)) return structure(get(info.mainClass, m.m[0])); if (match3("invoke function * of main class", s, m)) return structure(call(info.mainClass, m.m[0])); if (match3("set field * of main class to *", s, m)) { set(info.mainClass, m.m[0], unstructure(m.m[1])); return "ok"; } if (match3("how much memory are you consuming", s)) return "Java heap size: " + (Runtime.getRuntime().totalMemory()+1024*1024-1)/1024/1024 + " MB"; if (match3("how much memory is used after GC?", s)) { System.gc(); return "Java heap used: " + (Runtime.getRuntime().totalMemory()-Runtime.getRuntime().freeMemory()+1024*1024-1)/1024/1024 + " MB"; } if (match3("how much memory is used?", s)) return "Java heap used: " + (Runtime.getRuntime().totalMemory()-Runtime.getRuntime().freeMemory()+1024*1024-1)/1024/1024 + " MB"; return null; } static class Android { int port; DialogHandler handler; } static int makeAndroidNoConsole(final String greeting, final StringFunc f) { return makeAndroid(greeting, f, false); } static int makeAndroid(final String greeting, final StringFunc f) { return makeAndroid(greeting, f, true); } static int makeAndroid(final String greeting, final StringFunc f, boolean console) { print(greeting); final Android a = new Android(); a.handler = makeAndroid_makeDialogHandler(greeting, f); a.port = startDialogServerOnPortAbove(5000, a.handler); if (console) { print("You may also type on this console."); Thread _t_0 = new Thread() { public void run() { try { String line; while ((line = readLine()) != null) { if ("bye".equals(line)) print("> bye stranger"); else makeAndroid_getAnswer(line, f); // prints answer on console too } } catch (Exception _e) { throw _e instanceof RuntimeException ? (RuntimeException) _e : new RuntimeException(_e); } } }; _t_0.start(); } record(a); return a.port; } static DialogHandler makeAndroid_makeDialogHandler(final String greeting, final StringFunc f) { return new DialogHandler() { public void run(final DialogIO io) { if (!(publicCommOn() || io.isLocalConnection())) { io.sendLine("Sorry, not allowed"); return; } String dialogID = randomID(8); io.sendLine(greeting + " / Your ID: " + dialogID); while (io.isStillConnected()) { if (io.waitForLine()) { final String line = io.readLineNoBlock(); String s = dialogID + " at " + now() + ": " + quote(line); print(s); if ("bye".equals(line)) { io.sendLine("bye stranger"); return; } String answer = makeAndroid_getAnswer(line, f); io.sendLine(answer == null ? "null" : answer); //appendToLog(logFile, s); } } }}; } static String makeAndroid_getAnswer(String line, StringFunc f) { String answer; try { answer = makeAndroid_fallback(f.get(line)); } catch (Throwable e) { e.printStackTrace(); answer = e.toString(); } print("> " + answer); return answer; } static String makeAndroid_fallback(String answer) { return answer == null ? "?" : answer; } // makeAndroid / makeAndroidNoConsole static BufferedReader readLine_reader; static String readLine() { try { if (readLine_reader == null) readLine_reader = new BufferedReader(new InputStreamReader(System.in, "UTF-8")); String s = readLine_reader.readLine(); if (s != null) print(s); return s; } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} // readLine static boolean publicCommOn() { return "1".equals(loadTextFile(new File(userHome(), ".javax/public-communication"))); } static List record_list = synchroList(); static void record(Object o) { record_list.add(o); } static Set listFields(Class c) { Set fields = new TreeSet(); for (Field f : c.getDeclaredFields()) fields.add(f.getName()); return fields; } // try to get our current process ID static String getPID() { String name = ManagementFactory.getRuntimeMXBean().getName(); return name.replaceAll("@.*", ""); } static AtomicInteger dialogServer_clients = new AtomicInteger(); static int startDialogServerOnPortAbove(int port, DialogHandler handler) { while (!startDialogServerIfPortAvailable(port, handler)) ++port; return port; } static void startDialogServer(int port, DialogHandler handler) { if (!startDialogServerIfPortAvailable(port, handler)) fail("Can't start dialog server on port " + port); } // true on server set up, false on port not available // now uses "thread" and not "daemon" (keeps VM alive!) static boolean startDialogServerIfPortAvailable(int port, final DialogHandler handler) { ServerSocket serverSocket = null; try { serverSocket = new ServerSocket(port); } catch (IOException e) { // probably the port number is used - let's assume there already is a chat server. return false; } final ServerSocket _serverSocket = serverSocket; Thread _t_1 = new Thread() { public void run() { try { while (true) { try { final Socket s = _serverSocket.accept(); print("connect - clients: " + dialogServer_clients.incrementAndGet()); Thread _t_2 = new Thread() { public void run() { try { try { final Writer w = new OutputStreamWriter(s.getOutputStream(), "UTF-8"); final BufferedReader in = new BufferedReader( new InputStreamReader(s.getInputStream(), "UTF-8")); DialogIO io = new DialogIO() { String line; boolean buff; Socket getSocket() { return s; } // local means localhost - todo: test boolean isLocalConnection() { return s.getInetAddress().isLoopbackAddress(); } boolean isStillConnected() { return !(buff || s.isClosed()); } String readLineNoBlock() { String l = line; line = null; return l; } boolean waitForLine() { try { if (line != null) return true; //print("Readline"); line = in.readLine(); //print("Readline done: " + line); if (line == null) buff = true; return line != null; } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} void sendLine(String line) { try { w.write(line + "\n"); w.flush(); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} }; try { handler.run(io); } finally { s.close(); } } finally { print("client disconnect - " + dialogServer_clients.decrementAndGet() + " remaining"); } } catch (Exception _e) { throw _e instanceof RuntimeException ? (RuntimeException) _e : new RuntimeException(_e); } } }; _t_2.start(); } catch (SocketTimeoutException e) { } } } catch (Exception _e) { throw _e instanceof RuntimeException ? (RuntimeException) _e : new RuntimeException(_e); } } }; _t_1.start(); print("Dialog server on port " + port + " started."); return true; } static class Matches { String[] m; } static boolean match3(String pat, String s) { return match3(pat, s, null); } static boolean match3(String pat, String s, Matches matches) { List tokpat = parse3(pat), toks = parse3(s); String[] m = match2(tokpat, toks); //print(structure(tokpat) + " on " + structure(toks) + " => " + structure(m)); if (m == null) return false; else { if (matches != null) matches.m = m; return true; } } static List parse3(String s) { return dropPunctuation(javaTokPlusPeriod(s)); } static DialogIO talkTo(String ip, int port) { try { print("Talking to " + ip + ":" + port); final Socket s = new Socket(ip, port); final Writer w = new OutputStreamWriter(s.getOutputStream(), "UTF-8"); final BufferedReader in = new BufferedReader(new InputStreamReader(s.getInputStream(), "UTF-8")); return new DialogIO() { String line; boolean buff; boolean isLocalConnection() { return s.getInetAddress().isLoopbackAddress(); } boolean isStillConnected() { return !(buff || s.isClosed()); } String readLineNoBlock() { String l = line; line = null; return l; } boolean waitForLine() { try { if (line != null) return true; //print("Readline"); line = in.readLine(); //print("Readline done: " + line); if (line == null) buff = true; return line != null; } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} void sendLine(String line) { try { w.write(line + "\n"); w.flush(); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} void close() { try { s.close(); } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} Socket getSocket() { return s; } }; } catch (Throwable __e) { throw __e instanceof RuntimeException ? (RuntimeException) __e : new RuntimeException(__e); }} // actually it's now almost the same as jsonDecode :) static Object unstructure(String text) { final List tok = javaTok(text); class X { int i = 1; Object parse() { String t = tok.get(i); if (t.startsWith("\"")) { String s = unquote(tok.get(i)); i += 2; return s; } if (t.equals("{")) return parseMap(); if (t.equals("[")) return parseList(); if (t.equals("null")) { i += 2; return null; } if (t.equals("false")) { i += 2; return false; } if (t.equals("true")) { i += 2; return true; } if (isInteger(t)) { i += 2; return Integer.parseInt(t); } throw new RuntimeException("Unknown token " + (i+1) + ": " + t); } Object parseList() { consume("["); List list = new ArrayList(); while (!tok.get(i).equals("]")) { list.add(parse()); if (tok.get(i).equals(",")) i += 2; } consume("]"); return list; } Object parseMap() { consume("{"); Map map = new TreeMap(); while (!tok.get(i).equals("}")) { String key = unquote(tok.get(i)); i += 2; consume("="); Object value = parse(); map.put(key, value); if (tok.get(i).equals(",")) i += 2; } consume("}"); return map; } void consume(String s) { if (!tok.get(i).equals(s)) { String prevToken = i-2 >= 0 ? tok.get(i-2) : ""; String nextTokens = join(tok.subList(i, Math.min(i+4, tok.size()))); fail(quote(s) + " expected: " + prevToken + " " + nextTokens + " (" + i + "/" + tok.size() + ")"); } i += 2; } } return new X().parse(); } static Matcher matcher(String pattern, String string) { return Pattern.compile(pattern).matcher(string); } static String randomID(int length) { return makeRandomID(length); } static Object process(String processorID, Object in) { return process(processorID, in, "in"); } static Object process(String processorID, Object in, String outVar) { try { Class processor = hotwire(processorID); set(processor, "in", in); call(processor, "main", new Object[] {new String[0]}); return get(processor, outVar); } catch (Exception e) { throw new RuntimeException("Error in #" + parseSnippetID(processorID), e); } } static String _computerID; public static String computerID() throws IOException { if (_computerID == null) { File file = new File(userHome(), ".tinybrain/computer-id"); _computerID = loadTextFile(file.getPath(), null); if (_computerID == null) { _computerID = makeRandomID(12); saveTextFile(file.getPath(), _computerID); } } return _computerID; } static String structure(Object o) { return structure(o, 0); } static String structure(Object o, int stringSizeLimit) { if (o == null) return "null"; String name = o.getClass().getName(); StringBuilder buf = new StringBuilder(); if (o instanceof Collection) { for (Object x : (Collection) o) { if (buf.length() != 0) buf.append(", "); buf.append(structure(x, stringSizeLimit)); } return "[" + buf + "]"; } if (o instanceof Map) { for (Object e : ((Map) o).entrySet()) { if (buf.length() != 0) buf.append(", "); buf.append(structure(((Map.Entry) e).getKey(), stringSizeLimit)); buf.append("="); buf.append(structure(((Map.Entry) e).getValue(), stringSizeLimit)); } return "{" + buf + "}"; } if (o.getClass().isArray()) { int n = Array.getLength(o); for (int i = 0; i < n; i++) { if (buf.length() != 0) buf.append(", "); buf.append(structure(Array.get(o, i), stringSizeLimit)); } return "{" + buf + "}"; } if (o instanceof String) return quote(stringSizeLimit != 0 ? shorten((String) o, stringSizeLimit) : (String) o); // Need more cases? This should cover all library classes... if (name.startsWith("java.") || name.startsWith("javax.")) return String.valueOf(o); String shortName = o.getClass().getName().replaceAll("^main\\$", ""); // TODO: go to superclasses too Field[] fields = o.getClass().getDeclaredFields(); int numFields = 0; String fieldName = ""; for (Field field : fields) { if ((field.getModifiers() & Modifier.STATIC) != 0) continue; Object value; try { value = field.get(o); } catch (Exception e) { value = "?"; } fieldName = field.getName(); // put special cases here... if (value != null) { if (buf.length() != 0) buf.append(", "); buf.append(fieldName + "=" + structure(value, stringSizeLimit)); } ++numFields; } String b = buf.toString(); if (numFields == 1) b = b.replaceAll("^" + fieldName + "=", ""); // drop field name if only one String s = shortName; if (buf.length() != 0) s += "(" + b + ")"; return s; } static List synchroList() { return Collections.synchronizedList(new ArrayList()); } static List synchroList(List l) { return Collections.synchronizedList(l); } static List dropPunctuation(List tok) { tok = new ArrayList(tok); for (int i = 1; i < tok.size(); i += 2) { String t = tok.get(i); if (t.length() == 1 && !Character.isLetter(t.charAt(0)) && !Character.isDigit(t.charAt(0)) && !"*".equals(t)) { tok.set(i-1, tok.get(i-1) + tok.get(i+1)); tok.remove(i); tok.remove(i); i -= 2; } } return tok; } // match2 matches multiple "*" (matches a single token) wildcards and zero or one "..." wildcards (matches multiple tokens) static String[] match2(List pat, List tok) { // standard case (no ...) int i = pat.indexOf("..."); if (i < 0) return match2_match(pat, tok); pat = new ArrayList(pat); // We're modifying it, so copy first pat.set(i, "*"); int expand = 0; while (pat.size() < tok.size()) { ++expand; pat.add(i, "*"); pat.add(i+1, ""); // doesn't matter } return match2_match(pat, tok); } static String[] match2_match(List pat, List tok) { List result = new ArrayList(); if (pat.size() != tok.size()) { /*if (debug) print("Size mismatch: " + structure(pat) + " vs " + structure(tok));*/ return null; } for (int i = 1; i < pat.size(); i += 2) { String p = pat.get(i), t = tok.get(i); /*if (debug) print("Checking " + p + " against " + t);*/ if ("*".equals(p)) result.add(t); else if (!p.equalsIgnoreCase(t)) return null; } return result.toArray(new String[result.size()]); } // javaTok extended with "..." token. static List javaTokPlusPeriod(String s) { List tok = new ArrayList(); int l = s.length(); int i = 0; while (i < l) { int j = i; char c; String cc; // scan for whitespace while (j < l) { c = s.charAt(j); cc = s.substring(j, Math.min(j+2, l)); if (c == ' ' || c == '\t' || c == '\r' || c == '\n') ++j; else if (cc.equals("/*")) { do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/")); j = Math.min(j+2, l); } else if (cc.equals("//")) { do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0); } else break; } tok.add(s.substring(i, j)); i = j; if (i >= l) break; c = s.charAt(i); // cc is not needed in rest of loop body cc = s.substring(i, Math.min(i+2, l)); // scan for non-whitespace if (c == '\'' || c == '"') { char opener = c; ++j; while (j < l) { if (s.charAt(j) == opener) { ++j; break; } else if (s.charAt(j) == '\\' && j+1 < l) j += 2; else ++j; } } else if (Character.isJavaIdentifierStart(c)) do ++j; while (j < l && Character.isJavaIdentifierPart(s.charAt(j))); else if (Character.isDigit(c)) do ++j; while (j < l && Character.isDigit(s.charAt(j))); else if (cc.equals("[[")) { do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]")); j = Math.min(j+2, l); } else if (s.substring(j, Math.min(j+3, l)).equals("...")) j += 3; else ++j; tok.add(s.substring(i, j)); i = j; } if ((tok.size() % 2) == 0) tok.add(""); return tok; } // replacement for class JavaTok // maybe incomplete, might want to add floating point numbers // todo also: extended multi-line strings static List javaTok(String s) { List tok = new ArrayList(); int l = s.length(); int i = 0; while (i < l) { int j = i; char c; String cc; // scan for whitespace while (j < l) { c = s.charAt(j); cc = s.substring(j, Math.min(j+2, l)); if (c == ' ' || c == '\t' || c == '\r' || c == '\n') ++j; else if (cc.equals("/*")) { do ++j; while (j < l && !s.substring(j, Math.min(j+2, l)).equals("*/")); j = Math.min(j+2, l); } else if (cc.equals("//")) { do ++j; while (j < l && "\r\n".indexOf(s.charAt(j)) < 0); } else break; } tok.add(s.substring(i, j)); i = j; if (i >= l) break; c = s.charAt(i); // cc is not needed in rest of loop body cc = s.substring(i, Math.min(i+2, l)); // scan for non-whitespace if (c == '\'' || c == '"') { char opener = c; ++j; while (j < l) { if (s.charAt(j) == opener) { ++j; break; } else if (s.charAt(j) == '\\' && j+1 < l) j += 2; else ++j; } } else if (Character.isJavaIdentifierStart(c)) do ++j; while (j < l && Character.isJavaIdentifierPart(s.charAt(j))); else if (Character.isDigit(c)) do ++j; while (j < l && Character.isDigit(s.charAt(j))); else if (cc.equals("[[")) { do ++j; while (j+1 < l && !s.substring(j, j+2).equals("]]")); j = Math.min(j+2, l); } else ++j; tok.add(s.substring(i, j)); i = j; } if ((tok.size() % 2) == 0) tok.add(""); return tok; } public static String unquote(String s) { if (s.startsWith("[")) { int i = 1; while (i < s.length() && s.charAt(i) == '=') ++i; if (i < s.length() && s.charAt(i) == '[') { String m = s.substring(1, i); if (s.endsWith("]" + m + "]")) return s.substring(i+1, s.length()-i-1); } } if (s.startsWith("\"") && s.endsWith("\"") && s.length() > 1) { String st = s.substring(1, s.length()-1); StringBuilder sb = new StringBuilder(st.length()); for (int i = 0; i < st.length(); i++) { char ch = st.charAt(i); if (ch == '\\') { char nextChar = (i == st.length() - 1) ? '\\' : st .charAt(i + 1); // Octal escape? if (nextChar >= '0' && nextChar <= '7') { String code = "" + nextChar; i++; if ((i < st.length() - 1) && st.charAt(i + 1) >= '0' && st.charAt(i + 1) <= '7') { code += st.charAt(i + 1); i++; if ((i < st.length() - 1) && st.charAt(i + 1) >= '0' && st.charAt(i + 1) <= '7') { code += st.charAt(i + 1); i++; } } sb.append((char) Integer.parseInt(code, 8)); continue; } switch (nextChar) { case '\\': ch = '\\'; break; case 'b': ch = '\b'; break; case 'f': ch = '\f'; break; case 'n': ch = '\n'; break; case 'r': ch = '\r'; break; case 't': ch = '\t'; break; case '\"': ch = '\"'; break; case '\'': ch = '\''; break; // Hex Unicode: u???? case 'u': if (i >= st.length() - 5) { ch = 'u'; break; } int code = Integer.parseInt( "" + st.charAt(i + 2) + st.charAt(i + 3) + st.charAt(i + 4) + st.charAt(i + 5), 16); sb.append(Character.toChars(code)); i += 5; continue; } i++; } sb.append(ch); } return sb.toString(); } else return s; // return original } // compile JavaX source, load classes & return main class // src can be a snippet ID or actual source code static Class hotwire(String src) { try { Class j = getJavaX(); if (j == null) { j = _javax.class; try { _javax.androidContext = get(Class.forName("main"), "androidContext"); } catch (Exception e) {} } List libraries = new ArrayList(); File srcDir = (File) call(j, "transpileMain", src, libraries); Object androidContext = get(j, "androidContext"); if (androidContext != null) return (Class) call(j, "loadx2android", srcDir, src); File classesDir = (File) call(j, "TempDirMaker_make"); String javacOutput = (String) call(j, "compileJava", srcDir, libraries, classesDir); System.out.println(javacOutput); URL[] urls = new URL[libraries.size()+1]; urls[0] = classesDir.toURI().toURL(); for (int i = 0; i < libraries.size(); i++) urls[i+1] = libraries.get(i).toURI().toURL(); // make class loader URLClassLoader classLoader = new URLClassLoader(urls); // load & return main class Class theClass = classLoader.loadClass("main"); call(j, "setVars", theClass, isSnippetID(src) ? src: null); return theClass; } catch (Exception e) { throw e instanceof RuntimeException ? (RuntimeException) e : new RuntimeException(e); } } static RuntimeException fail() { throw new RuntimeException("fail"); } static RuntimeException fail(String msg) { throw new RuntimeException(msg); } static String shorten(String s, int max) { return s.length() <= max ? s : s.substring(0, Math.min(s.length(), max)) + "..."; } static Class __javax; static Class getJavaX() { return __javax; } } interface StringFunc { String get(String s); }