1 | import java.io.*; |
2 | import java.lang.reflect.Method; |
3 | import java.net.URL; |
4 | import java.net.URLClassLoader; |
5 | import java.net.URLConnection; |
6 | import java.security.MessageDigest; |
7 | import java.security.NoSuchAlgorithmException; |
8 | import java.util.*; |
9 | import java.util.regex.Matcher; |
10 | import java.util.regex.Pattern; |
11 | |
12 | /** |
13 | JavaX runner version 12 as embeddable class (non-public) |
14 | |
15 | Changes to v11: |
16 | -Ported to Windows |
17 | |
18 | */ |
19 | |
20 | class x12 { |
21 | static final String version = "JavaX 12"; |
22 | |
23 | static boolean verbose = false, translate = false, list = false, virtualizeTranslators = true; |
24 | static boolean preferCached = false; |
25 | static List<String> mainTranslators = new ArrayList<String>(); |
26 | private static Map<Long, String> memSnippetCache = new HashMap<Long, String>(); |
27 | private static int processesStarted; |
28 | |
29 | public static void main(String[] args) throws Exception { |
30 | File ioBaseDir = new File("."), inputDir = null, outputDir = null; |
31 | String src = "."; |
32 | for (int i = 0; i < args.length; i++) { |
33 | String arg = args[i]; |
34 | if (arg.equals("-v") || arg.equals("-verbose")) |
35 | verbose = true; |
36 | else if (arg.equals("-finderror")) |
37 | verbose = true; |
38 | else if (arg.equals("-offline") || arg.equalsIgnoreCase("-prefercached")) |
39 | preferCached = true; |
40 | else if (arg.equals("-novirt")) |
41 | virtualizeTranslators = false; |
42 | else if (arg.equals("translate")) |
43 | translate = true; |
44 | else if (arg.equals("list")) |
45 | list = true; |
46 | else if (arg.equals("run")) { |
47 | // it's the default command anyway |
48 | } else if (arg.startsWith("input=")) |
49 | inputDir = new File(arg.substring(6)); |
50 | else if (arg.startsWith("output=")) |
51 | outputDir = new File(arg.substring(7)); |
52 | else if (arg.equals("with")) |
53 | mainTranslators.add(args[++i]); |
54 | else |
55 | src = arg; |
56 | } |
57 | |
58 | if (virtualizeTranslators && !preferCached) |
59 | initDiskSnippetCache(TempDirMaker_make()); |
60 | |
61 | if (inputDir != null) { |
62 | ioBaseDir = TempDirMaker_make(); |
63 | System.out.println("Taking input from: " + inputDir.getAbsolutePath()); |
64 | System.out.println("Output is in: " + new File(ioBaseDir, "output").getAbsolutePath()); |
65 | copyInput(inputDir, new File(ioBaseDir, "input")); |
66 | } |
67 | |
68 | javax4(src, ioBaseDir, translate, list); |
69 | |
70 | if (outputDir != null) { |
71 | copyInput(new File(ioBaseDir, "output"), outputDir); |
72 | System.out.println("Output copied to: " + outputDir.getAbsolutePath()); |
73 | } |
74 | |
75 | if (verbose) |
76 | System.out.println("Processes started: " + processesStarted); |
77 | } |
78 | |
79 | public static void javax4(String src, File ioDir, boolean translate, boolean list) throws Exception { |
80 | File srcDir; |
81 | if (isSnippetID(src)) |
82 | srcDir = loadSnippetAsMainJava(src); |
83 | else { |
84 | srcDir = new File(src); |
85 | if (!new File(srcDir, "main.java").exists()) { |
86 | System.out.println("This is " + version + ".\n" + |
87 | "No main.java found, exiting"); |
88 | return; |
89 | } |
90 | } |
91 | |
92 | // translate |
93 | |
94 | List<File> libraries = new ArrayList<File>(); |
95 | File X = srcDir; |
96 | X = applyTranslators(X, mainTranslators, libraries); |
97 | X = defaultTranslate(X, libraries); |
98 | |
99 | // list or run |
100 | |
101 | if (translate) |
102 | System.out.println("Program translated to: " + X.getAbsolutePath()); |
103 | else if (list) |
104 | System.out.println(loadTextFile(new File(X, "main.java").getPath(), null)); |
105 | else |
106 | javax2(X, ioDir, false, false, libraries); |
107 | } |
108 | |
109 | private static File defaultTranslate(File x, List<File> libraries_out) throws Exception { |
110 | x = luaPrintToJavaPrint(x); |
111 | x = autoTranslate(x, libraries_out); |
112 | return x; |
113 | } |
114 | |
115 | private static File autoTranslate(File x, List<File> libraries_out) throws Exception { |
116 | String main = loadTextFile(new File(x, "main.java").getPath(), null); |
117 | List<String> lines = toLines(main); |
118 | List<String> translators = findTranslators(lines); |
119 | if (translators.isEmpty()) |
120 | return x; |
121 | |
122 | main = fromLines(lines); |
123 | File newDir = TempDirMaker_make(); |
124 | saveTextFile(new File(newDir, "main.java").getPath(), main); |
125 | return applyTranslators(newDir, translators, libraries_out); |
126 | } |
127 | |
128 | private static List<String> findTranslators(List<String> lines) { |
129 | List<String> translators = new ArrayList<String>(); |
130 | Pattern pattern = Pattern.compile("^!([0-9# \t]+)"); |
131 | for (ListIterator<String> iterator = lines.listIterator(); iterator.hasNext(); ) { |
132 | String line = iterator.next(); |
133 | line = line.trim(); |
134 | Matcher matcher = pattern.matcher(line); |
135 | if (matcher.find()) { |
136 | translators.addAll(Arrays.asList(matcher.group(1).split("[ \t]+"))); |
137 | iterator.remove(); |
138 | } |
139 | } |
140 | return translators; |
141 | } |
142 | |
143 | public static List<String> toLines(String s) { |
144 | List<String> lines = new ArrayList<String>(); |
145 | int start = 0; |
146 | while (true) { |
147 | int i = toLines_nextLineBreak(s, start); |
148 | if (i < 0) { |
149 | if (s.length() > start) lines.add(s.substring(start)); |
150 | break; |
151 | } |
152 | |
153 | lines.add(s.substring(start, i)); |
154 | if (s.charAt(i) == '\r' && i+1 < s.length() && s.charAt(i+1) == '\n') |
155 | i += 2; |
156 | else |
157 | ++i; |
158 | |
159 | start = i; |
160 | } |
161 | return lines; |
162 | } |
163 | |
164 | private static int toLines_nextLineBreak(String s, int start) { |
165 | for (int i = start; i < s.length(); i++) { |
166 | char c = s.charAt(i); |
167 | if (c == '\r' || c == '\n') |
168 | return i; |
169 | } |
170 | return -1; |
171 | } |
172 | |
173 | public static String fromLines(List<String> lines) { |
174 | StringBuilder buf = new StringBuilder(); |
175 | for (String line : lines) { |
176 | buf.append(line).append('\n'); |
177 | } |
178 | return buf.toString(); |
179 | } |
180 | |
181 | private static File applyTranslators(File x, List<String> translators, List<File> libraries_out) throws Exception { |
182 | for (String translator : translators) |
183 | x = applyTranslator(x, translator, libraries_out); |
184 | return x; |
185 | } |
186 | |
187 | // also takes a library |
188 | private static File applyTranslator(File x, String translator, List<File> libraries_out) throws Exception { |
189 | if (verbose) |
190 | System.out.println("Using translator " + translator + " on sources in " + x.getPath()); |
191 | |
192 | File newDir = runTranslatorOnInput(translator, null, x, !verbose, libraries_out); |
193 | |
194 | if (!new File(newDir, "main.java").exists()) { |
195 | throw new Exception("Translator " + translator + " did not generate main.java"); |
196 | // TODO: show translator output |
197 | } |
198 | if (verbose) |
199 | System.out.println("Translated with " + translator + " from " + x.getPath() + " to " + newDir.getPath()); |
200 | x = newDir; |
201 | return x; |
202 | } |
203 | |
204 | private static File luaPrintToJavaPrint(File x) throws IOException { |
205 | File newDir = TempDirMaker_make(); |
206 | String code = loadTextFile(new File(x, "main.java").getPath(), null); |
207 | code = luaPrintToJavaPrint(code); |
208 | if (verbose) |
209 | System.out.println(code); |
210 | saveTextFile(new File(newDir, "main.java").getPath(), code); |
211 | return newDir; |
212 | } |
213 | |
214 | public static String luaPrintToJavaPrint(String code) { |
215 | return ("\n" + code).replaceAll( |
216 | "(\n\\s*)print (\".*\")", |
217 | "$1System.out.println($2);").substring(1); |
218 | } |
219 | |
220 | public static File loadSnippetAsMainJava(String snippetID) throws IOException { |
221 | File srcDir = TempDirMaker_make(); |
222 | saveTextFile(new File(srcDir, "main.java").getPath(), loadSnippet(snippetID)); |
223 | return srcDir; |
224 | } |
225 | |
226 | public static File loadSnippetAsMainJavaVerified(String snippetID, String hash) throws IOException { |
227 | File srcDir = TempDirMaker_make(); |
228 | saveTextFile(new File(srcDir, "main.java").getPath(), loadSnippetVerified(snippetID, hash)); |
229 | return srcDir; |
230 | } |
231 | |
232 | /** returns output dir */ |
233 | private static File runTranslatorOnInput(String snippetID, String hash, File input, boolean silent, |
234 | List<File> libraries_out) throws Exception { |
235 | File libraryFile = DiskSnippetCache_getLibrary(parseSnippetID(snippetID)); |
236 | if (libraryFile != null) { |
237 | loadLibrary(snippetID, libraries_out, libraryFile); |
238 | return input; |
239 | } |
240 | |
241 | File srcDir = hash == null ? loadSnippetAsMainJava(snippetID) |
242 | : loadSnippetAsMainJavaVerified(snippetID, hash); |
243 | |
244 | long mainJavaSize = new File(srcDir, "main.java").length(); |
245 | |
246 | if (mainJavaSize == 0) { // no text in snippet? assume it's a library |
247 | loadLibrary(snippetID, libraries_out, libraryFile); |
248 | return input; |
249 | } |
250 | |
251 | List<File> libraries = new ArrayList<File>(); |
252 | srcDir = defaultTranslate(srcDir, libraries); |
253 | boolean runInProcess = false; |
254 | File ioBaseDir = TempDirMaker_make(); |
255 | |
256 | if (virtualizeTranslators) { |
257 | if (verbose) System.out.println("Virtualizing translator"); |
258 | |
259 | //srcDir = applyTranslator(srcDir, "#2000351"); // I/O-virtualize the translator |
260 | // that doesn't work because it recurses infinitely... |
261 | |
262 | // So we do it right here: |
263 | String s = loadTextFile(new File(srcDir, "main.java").getPath(), null); |
264 | s = s.replaceAll("new\\s+File\\(", "virtual.newFile("); |
265 | s = s.replaceAll("new\\s+FileInputStream\\(", "virtual.newFileInputStream("); |
266 | s = s.replaceAll("new\\s+FileOutputStream\\(", "virtual.newFileOutputStream("); |
267 | s += "\n\n" + loadSnippet("#2000355"); // load class virtual |
268 | |
269 | // change baseDir |
270 | s = s.replace("virtual_baseDir = \"\";", |
271 | "virtual_baseDir = " + javaQuote(ioBaseDir.getAbsolutePath()) + ";"); |
272 | |
273 | // forward snippet cache |
274 | s = s.replace("static File DiskSnippetCache_dir;", |
275 | "static File DiskSnippetCache_dir = new File(" + javaQuote(DiskSnippetCache_dir.getAbsolutePath()) + ");"); |
276 | s = s.replace("static boolean preferCached = false;", "static boolean preferCached = true;"); |
277 | |
278 | if (verbose) { |
279 | System.out.println("==BEGIN VIRTUALIZED TRANSLATOR=="); |
280 | System.out.println(s); |
281 | System.out.println("==END VIRTUALIZED TRANSLATOR=="); |
282 | } |
283 | saveTextFile(new File(srcDir, "main.java").getPath(), s); |
284 | |
285 | // TODO: silence translator also |
286 | runInProcess = true; |
287 | } |
288 | |
289 | return runJavaX(ioBaseDir, srcDir, input, silent, runInProcess, libraries); |
290 | } |
291 | |
292 | private static void loadLibrary(String snippetID, List<File> libraries_out, File libraryFile) throws IOException { |
293 | if (verbose) |
294 | System.out.println("Assuming " + snippetID + " is a library."); |
295 | |
296 | if (libraryFile == null) { |
297 | byte[] data; |
298 | try { |
299 | URL url = new URL("http://eyeocr.sourceforge.net/filestore/filestore.php?cmd=serve&file=blob_" + parseSnippetID(snippetID) |
300 | + "&contentType=application/binary"); |
301 | System.err.println("Loading library: " + url); |
302 | data = loadBinaryPage(url.openConnection(), url); |
303 | if (verbose) |
304 | System.err.println("Bytes loaded: " + data.length); |
305 | } catch (FileNotFoundException e) { |
306 | throw new IOException("Binary snippet #" + snippetID + " not found or not public"); |
307 | } |
308 | DiskSnippetCache_putLibrary(parseSnippetID(snippetID), data); |
309 | libraryFile = DiskSnippetCache_getLibrary(parseSnippetID(snippetID)); |
310 | } |
311 | |
312 | if (!libraries_out.contains(libraryFile)) |
313 | libraries_out.add(libraryFile); |
314 | } |
315 | |
316 | /** returns output dir */ |
317 | private static File runJavaX(File ioBaseDir, File originalSrcDir, File originalInput, |
318 | boolean silent, boolean runInProcess, |
319 | List<File> libraries) throws Exception { |
320 | File srcDir = new File(ioBaseDir, "src"); |
321 | File inputDir = new File(ioBaseDir, "input"); |
322 | File outputDir = new File(ioBaseDir, "output"); |
323 | copyInput(originalSrcDir, srcDir); |
324 | copyInput(originalInput, inputDir); |
325 | javax2(srcDir, ioBaseDir, silent, runInProcess, libraries); |
326 | return outputDir; |
327 | } |
328 | |
329 | private static void copyInput(File src, File dst) throws IOException { |
330 | copyDirectory(src, dst); |
331 | } |
332 | |
333 | public static boolean hasFile(File inputDir, String name) { |
334 | return new File(inputDir, name).exists(); |
335 | } |
336 | |
337 | public static void copyDirectory(File src, File dst) throws IOException { |
338 | if (verbose) System.out.println("Copying " + src.getAbsolutePath() + " to " + dst.getAbsolutePath()); |
339 | dst.mkdirs(); |
340 | File[] files = src.listFiles(); |
341 | if (files == null) return; |
342 | for (File file : files) { |
343 | File dst1 = new File(dst, file.getName()); |
344 | if (file.isDirectory()) |
345 | copyDirectory(file, dst1); |
346 | else { |
347 | if (verbose) System.out.println("Copying " + file.getAbsolutePath() + " to " + dst1.getAbsolutePath()); |
348 | copy(file, dst1); |
349 | } |
350 | } |
351 | } |
352 | |
353 | /** Quickly copy a file without a progress bar or any other fancy GUI... :) */ |
354 | public static void copy(File src, File dest) throws IOException { |
355 | FileInputStream inputStream = new FileInputStream(src); |
356 | FileOutputStream outputStream = new FileOutputStream(dest); |
357 | try { |
358 | copy(inputStream, outputStream); |
359 | inputStream.close(); |
360 | } finally { |
361 | outputStream.close(); |
362 | } |
363 | } |
364 | |
365 | public static void copy(InputStream in, OutputStream out) throws IOException { |
366 | byte[] buf = new byte[65536]; |
367 | while (true) { |
368 | int n = in.read(buf); |
369 | if (n <= 0) return; |
370 | out.write(buf, 0, n); |
371 | } |
372 | } |
373 | |
374 | /** writes safely (to temp file, then rename) */ |
375 | public static void saveTextFile(String fileName, String contents) throws IOException { |
376 | File file = new File(fileName); |
377 | File parentFile = file.getParentFile(); |
378 | if (parentFile != null) |
379 | parentFile.mkdirs(); |
380 | String tempFileName = fileName + "_temp"; |
381 | FileOutputStream fileOutputStream = new FileOutputStream(tempFileName); |
382 | OutputStreamWriter outputStreamWriter = new OutputStreamWriter(fileOutputStream, charsetForTextFiles); |
383 | PrintWriter printWriter = new PrintWriter(outputStreamWriter); |
384 | printWriter.print(contents); |
385 | printWriter.close(); |
386 | if (file.exists() && !file.delete()) |
387 | throw new IOException("Can't delete " + fileName); |
388 | |
389 | if (!new File(tempFileName).renameTo(file)) |
390 | throw new IOException("Can't rename " + tempFileName + " to " + fileName); |
391 | } |
392 | |
393 | /** writes safely (to temp file, then rename) */ |
394 | public static void saveBinaryFile(String fileName, byte[] contents) throws IOException { |
395 | File file = new File(fileName); |
396 | File parentFile = file.getParentFile(); |
397 | if (parentFile != null) |
398 | parentFile.mkdirs(); |
399 | String tempFileName = fileName + "_temp"; |
400 | FileOutputStream fileOutputStream = new FileOutputStream(tempFileName); |
401 | fileOutputStream.write(contents); |
402 | fileOutputStream.close(); |
403 | if (file.exists() && !file.delete()) |
404 | throw new IOException("Can't delete " + fileName); |
405 | |
406 | if (!new File(tempFileName).renameTo(file)) |
407 | throw new IOException("Can't rename " + tempFileName + " to " + fileName); |
408 | } |
409 | |
410 | public static String loadTextFile(String fileName, String defaultContents) throws IOException { |
411 | if (!new File(fileName).exists()) |
412 | return defaultContents; |
413 | |
414 | FileInputStream fileInputStream = new FileInputStream(fileName); |
415 | InputStreamReader inputStreamReader = new InputStreamReader(fileInputStream, charsetForTextFiles); |
416 | return loadTextFile(inputStreamReader); |
417 | } |
418 | |
419 | public static String loadTextFile(Reader reader) throws IOException { |
420 | StringBuilder builder = new StringBuilder(); |
421 | try { |
422 | BufferedReader bufferedReader = new BufferedReader(reader); |
423 | String line; |
424 | while ((line = bufferedReader.readLine()) != null) |
425 | builder.append(line).append('\n'); |
426 | } finally { |
427 | reader.close(); |
428 | } |
429 | return builder.length() == 0 ? "" : builder.substring(0, builder.length()-1); |
430 | } |
431 | |
432 | static File DiskSnippetCache_dir; |
433 | |
434 | public static void initDiskSnippetCache(File dir) { |
435 | DiskSnippetCache_dir = dir; |
436 | dir.mkdirs(); |
437 | } |
438 | |
439 | // Data files are immutable, use centralized cache |
440 | public static synchronized File DiskSnippetCache_getLibrary(long snippetID) throws IOException { |
441 | File file = new File(getGlobalCache(), "data_" + snippetID + ".jar"); |
442 | if (verbose) |
443 | System.out.println("Checking data cache: " + file.getPath()); |
444 | return file.exists() ? file : null; |
445 | } |
446 | |
447 | public static synchronized String DiskSnippetCache_get(long snippetID) throws IOException { |
448 | return loadTextFile(DiskSnippetCache_getFile(snippetID).getPath(), null); |
449 | } |
450 | |
451 | private static File DiskSnippetCache_getFile(long snippetID) { |
452 | return new File(DiskSnippetCache_dir, "" + snippetID); |
453 | } |
454 | |
455 | public static synchronized void DiskSnippetCache_put(long snippetID, String snippet) throws IOException { |
456 | saveTextFile(DiskSnippetCache_getFile(snippetID).getPath(), snippet); |
457 | } |
458 | |
459 | public static synchronized void DiskSnippetCache_putLibrary(long snippetID, byte[] data) throws IOException { |
460 | saveBinaryFile(new File(getGlobalCache(), "data_" + snippetID).getPath() + ".jar", data); |
461 | } |
462 | |
463 | public static File DiskSnippetCache_getDir() { |
464 | return DiskSnippetCache_dir; |
465 | } |
466 | |
467 | public static void initSnippetCache() { |
468 | if (DiskSnippetCache_dir == null) |
469 | initDiskSnippetCache(getGlobalCache()); |
470 | } |
471 | |
472 | private static File getGlobalCache() { |
473 | File file = new File(System.getProperty("user.home"), ".tinybrain/snippet-cache"); |
474 | file.mkdirs(); |
475 | return file; |
476 | } |
477 | |
478 | public static String loadSnippetVerified(String snippetID, String hash) throws IOException { |
479 | String text = loadSnippet(snippetID); |
480 | String realHash = getHash(text.getBytes("UTF-8")); |
481 | if (!realHash.equals(hash)) { |
482 | String msg; |
483 | if (hash.isEmpty()) |
484 | msg = "Here's your hash for " + snippetID + ", please put in your program: " + realHash; |
485 | else |
486 | msg = "Hash mismatch for " + snippetID + ": " + realHash + " (new) vs " + hash + " - has tinybrain.de been hacked??"; |
487 | throw new RuntimeException(msg); |
488 | } |
489 | return text; |
490 | } |
491 | |
492 | public static String getHash(byte[] data) { |
493 | return bytesToHex(getFullFingerprint(data)); |
494 | } |
495 | |
496 | public static byte[] getFullFingerprint(byte[] data) { |
497 | try { |
498 | return MessageDigest.getInstance("MD5").digest(data); |
499 | } catch (NoSuchAlgorithmException e) { |
500 | throw new RuntimeException(e); |
501 | } |
502 | } |
503 | |
504 | public static String bytesToHex(byte[] bytes) { |
505 | return bytesToHex(bytes, 0, bytes.length); |
506 | } |
507 | |
508 | public static String bytesToHex(byte[] bytes, int ofs, int len) { |
509 | StringBuilder stringBuilder = new StringBuilder(len*2); |
510 | for (int i = 0; i < len; i++) { |
511 | String s = "0" + Integer.toHexString(bytes[ofs+i]); |
512 | stringBuilder.append(s.substring(s.length()-2, s.length())); |
513 | } |
514 | return stringBuilder.toString(); |
515 | } |
516 | |
517 | public static String loadSnippet(String snippetID) throws IOException { |
518 | return loadSnippet(parseSnippetID(snippetID)); |
519 | } |
520 | |
521 | public static long parseSnippetID(String snippetID) { |
522 | return Long.parseLong(shortenSnippetID(snippetID)); |
523 | } |
524 | |
525 | private static String shortenSnippetID(String snippetID) { |
526 | if (snippetID.startsWith("#")) |
527 | snippetID = snippetID.substring(1); |
528 | String httpBlaBla = "http://tinybrain.de/"; |
529 | if (snippetID.startsWith(httpBlaBla)) |
530 | snippetID = snippetID.substring(httpBlaBla.length()); |
531 | return snippetID; |
532 | } |
533 | |
534 | public static boolean isSnippetID(String snippetID) { |
535 | snippetID = shortenSnippetID(snippetID); |
536 | return isInteger(snippetID) && Long.parseLong(snippetID) != 0; |
537 | } |
538 | |
539 | public static boolean isInteger(String s) { |
540 | return Pattern.matches("\\-?\\d+", s); |
541 | } |
542 | |
543 | public static String loadSnippet(long snippetID) throws IOException { |
544 | String text = memSnippetCache.get(snippetID); |
545 | if (text != null) |
546 | return text; |
547 | |
548 | if (preferCached) { |
549 | initSnippetCache(); |
550 | text = DiskSnippetCache_get(snippetID); |
551 | if (text != null) |
552 | return text; |
553 | } |
554 | |
555 | try { |
556 | URL url = new URL("http://tinybrain.de:8080/getraw.php?id=" + snippetID); |
557 | text = loadPage(url); |
558 | } catch (FileNotFoundException e) { |
559 | throw new IOException("Snippet #" + snippetID + " not found or not public"); |
560 | } |
561 | |
562 | memSnippetCache.put(snippetID, text); |
563 | |
564 | try { |
565 | initSnippetCache(); |
566 | DiskSnippetCache_put(snippetID, text); |
567 | } catch (IOException e) { |
568 | System.err.println("Minor warning: Couldn't save snippet to cache (" + DiskSnippetCache_getDir() + ")"); |
569 | } |
570 | |
571 | return text; |
572 | } |
573 | |
574 | private static String loadPage(URL url) throws IOException { |
575 | System.err.println("Loading: " + url.toExternalForm()); |
576 | URLConnection con = url.openConnection(); |
577 | return loadPage(con, url); |
578 | } |
579 | |
580 | public static String loadPage(URLConnection con, URL url) throws IOException { |
581 | String contentType = con.getContentType(); |
582 | if (contentType == null) |
583 | throw new IOException("Page could not be read: " + url); |
584 | //Log.info("Content-Type: " + contentType); |
585 | String charset = guessCharset(contentType); |
586 | Reader r = new InputStreamReader(con.getInputStream(), charset); |
587 | StringBuilder buf = new StringBuilder(); |
588 | while (true) { |
589 | int ch = r.read(); |
590 | if (ch < 0) |
591 | break; |
592 | //Log.info("Chars read: " + buf.length()); |
593 | buf.append((char) ch); |
594 | } |
595 | return buf.toString(); |
596 | } |
597 | |
598 | public static byte[] loadBinaryPage(URLConnection con, URL url) throws IOException { |
599 | ByteArrayOutputStream buf = new ByteArrayOutputStream(); |
600 | InputStream inputStream = con.getInputStream(); |
601 | while (true) { |
602 | int ch = inputStream.read(); |
603 | if (ch < 0) |
604 | break; |
605 | buf.write(ch); |
606 | } |
607 | inputStream.close(); |
608 | return buf.toByteArray(); |
609 | } |
610 | |
611 | public static String guessCharset(String contentType) { |
612 | Pattern p = Pattern.compile("text/html;\\s+charset=([^\\s]+)\\s*"); |
613 | Matcher m = p.matcher(contentType); |
614 | /* If Content-Type doesn't match this pre-conception, choose default and hope for the best. */ |
615 | return m.matches() ? m.group(1) : "ISO-8859-1"; |
616 | } |
617 | |
618 | /** runs a transpiled set of sources */ |
619 | public static void javax2(File srcDir, File ioBaseDir, boolean silent, boolean runInProcess, |
620 | List<File> libraries) throws Exception { |
621 | // collect sources |
622 | |
623 | List<File> sources = new ArrayList<File>(); |
624 | if (verbose) System.out.println("Scanning for sources in " + srcDir.getPath()); |
625 | scanForSources(srcDir, sources, true); |
626 | if (sources.isEmpty()) { |
627 | System.out.println("No sources found"); |
628 | return; |
629 | } |
630 | |
631 | // compile |
632 | |
633 | File optionsFile = File.createTempFile("javax", ""); |
634 | File classesDir = TempDirMaker_make(); |
635 | if (verbose) System.out.println("Compiling " + sources.size() + " source(s) to " + classesDir.getPath()); |
636 | String options = "-d " + bashQuote(classesDir.getPath()); |
637 | writeOptions(sources, libraries, optionsFile, options); |
638 | classesDir.mkdirs(); |
639 | String javacOutput = invokeJavac(optionsFile); |
640 | |
641 | // run |
642 | |
643 | if (verbose) System.out.println("Running program (" + srcDir.getAbsolutePath() |
644 | + ") on io dir " + ioBaseDir.getAbsolutePath() + (runInProcess ? "[in-process]" : "") + "\n"); |
645 | runProgram(javacOutput, classesDir, ioBaseDir, silent, runInProcess, libraries); |
646 | } |
647 | |
648 | private static void runProgram(String javacOutput, File classesDir, File ioBaseDir, |
649 | boolean silent, boolean runInProcess, |
650 | List<File> libraries) throws Exception { |
651 | // print javac output if compile failed and it hasn't been printed yet |
652 | boolean didNotCompile = !hasFile(classesDir, "main.class"); |
653 | if (verbose || didNotCompile) |
654 | System.out.println(javacOutput); |
655 | if (didNotCompile) |
656 | return; |
657 | |
658 | if (runInProcess |
659 | || (ioBaseDir.getAbsolutePath().equals(new File(".").getAbsolutePath()) && !silent)) { |
660 | runProgramQuick(classesDir, libraries); |
661 | return; |
662 | } |
663 | |
664 | boolean echoOK = false; |
665 | // TODO: add libraries to class path |
666 | String bashCmd = "(cd " + bashQuote(ioBaseDir.getAbsolutePath()) + " && (java -cp " |
667 | + bashQuote(classesDir.getAbsolutePath()) + " main" + (echoOK ? "; echo ok" : "") + "))"; |
668 | if (verbose) System.out.println(bashCmd); |
669 | String output = backtick(bashCmd); |
670 | if (verbose || !silent) |
671 | System.out.println(output); |
672 | } |
673 | |
674 | private static void runProgramQuick(File classesDir, List<File> libraries) throws Exception { |
675 | // collect urls |
676 | URL[] urls = new URL[libraries.size()+1]; |
677 | urls[0] = classesDir.toURI().toURL(); |
678 | for (int i = 0; i < libraries.size(); i++) |
679 | urls[i+1] = libraries.get(i).toURI().toURL(); |
680 | |
681 | // make class loader |
682 | URLClassLoader classLoader = new URLClassLoader(urls); |
683 | |
684 | // load JavaX main class |
685 | Class<?> mainClass = classLoader.loadClass("main"); |
686 | |
687 | // run main method |
688 | Method main = mainClass.getMethod("main", String[].class); |
689 | main.invoke(null, (Object) new String[0]); |
690 | } |
691 | |
692 | private static String invokeJavac(File optionsFile) throws IOException { |
693 | String output; |
694 | try { |
695 | output = invokeEcj(optionsFile); |
696 | } catch (NoClassDefFoundError e) { |
697 | if (verbose) { |
698 | System.err.println("ecj not found - using javac"); |
699 | e.printStackTrace(); |
700 | } |
701 | output = backtick("javac " + bashQuote("@" + optionsFile.getPath())); |
702 | } |
703 | if (verbose) System.out.println(output); |
704 | return output; |
705 | } |
706 | |
707 | // throws ClassNotFoundError if ecj is not in classpath |
708 | static String invokeEcj(File optionsFile) { |
709 | StringWriter writer = new StringWriter(); |
710 | PrintWriter printWriter = new PrintWriter(writer); |
711 | org.eclipse.jdt.core.compiler.CompilationProgress progress = null; |
712 | org.eclipse.jdt.core.compiler.batch.BatchCompiler.compile( |
713 | new String[] { "@" + optionsFile.getPath(), "-source", "1.7" }, |
714 | printWriter, |
715 | printWriter, |
716 | progress); |
717 | return writer.toString(); |
718 | } |
719 | |
720 | private static void writeOptions(List<File> sources, List<File> libraries, |
721 | File optionsFile, String moreOptions) throws IOException { |
722 | FileWriter writer = new FileWriter(optionsFile); |
723 | for (File source : sources) |
724 | writer.write(bashQuote(source.getPath()) + " "); |
725 | if (!libraries.isEmpty()) { |
726 | List<String> cp = new ArrayList<String>(); |
727 | for (File lib : libraries) |
728 | cp.add(lib.getAbsolutePath()); |
729 | writer.write("-cp " + bashQuote(join(File.pathSeparator, cp)) + " "); |
730 | } |
731 | writer.write(moreOptions); |
732 | writer.close(); |
733 | } |
734 | |
735 | private static void scanForSources(File source, List<File> sources, boolean topLevel) { |
736 | if (source.isFile() && source.getName().endsWith(".java")) |
737 | sources.add(source); |
738 | else if (source.isDirectory() && !isSkippedDirectoryName(source.getName(), topLevel)) { |
739 | File[] files = source.listFiles(); |
740 | for (File file : files) |
741 | scanForSources(file, sources, false); |
742 | } |
743 | } |
744 | |
745 | private static boolean isSkippedDirectoryName(String name, boolean topLevel) { |
746 | 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.) |
747 | return name.equalsIgnoreCase("input") || name.equalsIgnoreCase("output"); |
748 | } |
749 | |
750 | public static String backtick(String cmd) throws IOException { |
751 | ++processesStarted; |
752 | File outFile = File.createTempFile("_backtick", ""); |
753 | File scriptFile = File.createTempFile("_backtick", isWindows() ? ".bat" : ""); |
754 | |
755 | String command = cmd + ">" + bashQuote(outFile.getPath()) + " 2>&1"; |
756 | //Log.info("[Backtick] " + command); |
757 | try { |
758 | saveTextFile(scriptFile.getPath(), command); |
759 | String[] command2; |
760 | if (isWindows()) |
761 | command2 = new String[] { scriptFile.getPath() }; |
762 | else |
763 | command2 = new String[] { "/bin/bash", scriptFile.getPath() }; |
764 | Process process = Runtime.getRuntime().exec(command2); |
765 | try { |
766 | process.waitFor(); |
767 | } catch (InterruptedException e) { |
768 | throw new RuntimeException(e); |
769 | } |
770 | process.exitValue(); |
771 | return loadTextFile(outFile.getPath(), ""); |
772 | } finally { |
773 | scriptFile.delete(); |
774 | } |
775 | } |
776 | |
777 | /** possibly improvable */ |
778 | public static String javaQuote(String text) { |
779 | return bashQuote(text); |
780 | } |
781 | |
782 | /** possibly improvable */ |
783 | public static String bashQuote(String text) { |
784 | if (text == null) return null; |
785 | return "\"" + text |
786 | .replace("\\", "\\\\") |
787 | .replace("\"", "\\\"") |
788 | .replace("\n", "\\n") |
789 | .replace("\r", "\\r") + "\""; |
790 | } |
791 | |
792 | public final static String charsetForTextFiles = "UTF8"; |
793 | |
794 | static long TempDirMaker_lastValue; |
795 | |
796 | public static File TempDirMaker_make() { |
797 | File dir = new File(System.getProperty("user.home"), ".javax/" + TempDirMaker_newValue()); |
798 | dir.mkdirs(); |
799 | return dir; |
800 | } |
801 | |
802 | private static long TempDirMaker_newValue() { |
803 | long value; |
804 | do |
805 | value = System.currentTimeMillis(); |
806 | while (value == TempDirMaker_lastValue); |
807 | TempDirMaker_lastValue = value; |
808 | return value; |
809 | } |
810 | |
811 | public static String join(String glue, Iterable<String> strings) { |
812 | StringBuilder buf = new StringBuilder(); |
813 | Iterator<String> i = strings.iterator(); |
814 | if (i.hasNext()) { |
815 | buf.append(i.next()); |
816 | while (i.hasNext()) |
817 | buf.append(glue).append(i.next()); |
818 | } |
819 | return buf.toString(); |
820 | } |
821 | |
822 | public static boolean isWindows() { |
823 | return System.getProperty("os.name").contains("Windows"); |
824 | } |
825 | } |
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Snippet ID: | #2000358 |
Snippet name: | x12.java |
Eternal ID of this version: | #2000358/1 |
Text MD5: | 71dc4dd0495a3ea33582102c5661264a |
Author: | stefan |
Category: | javax |
Type: | New Tinybrain snippet |
Public (visible to everyone): | Yes |
Archived (hidden from active list): | No |
Created/modified: | 2015-05-21 18:10:30 |
Source code size: | 29817 bytes / 825 lines |
Pitched / IR pitched: | No / Yes |
Views / Downloads: | 656 / 115 |
Referenced in: | [show references] |