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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

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1+/*
2+ * Copyright (c) 1999, 2006, Oracle and/or its affiliates. All rights reserved.
3+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4+ *
5+ * This code is free software; you can redistribute it and/or modify it
6+ * under the terms of the GNU General Public License version 2 only, as
7+ * published by the Free Software Foundation. Oracle designates this
8+ * particular file as subject to the "Classpath" exception as provided
9+ * by Oracle in the LICENSE file that accompanied this code.
10+ *
11+ * This code is distributed in the hope that it will be useful, but WITHOUT
12+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14+ * version 2 for more details (a copy is included in the LICENSE file that
15+ * accompanied this code).
16+ *
17+ * You should have received a copy of the GNU General Public License version
18+ * 2 along with this work; if not, write to the Free Software Foundation,
19+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20+ *
21+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22+ * or visit www.oracle.com if you need additional information or have any
23+ * questions.
24+ */
25+
26+package sun.applet;
27+
28+import java.io.BufferedInputStream;
29+import java.io.File;
30+import java.io.FileInputStream;
31+import java.io.FileOutputStream;
32+import java.io.IOException;
33+import java.lang.reflect.Method;
34+import java.lang.reflect.InvocationTargetException;
35+import java.net.URL;
36+import java.net.MalformedURLException;
37+import java.util.Enumeration;
38+import java.util.Properties;
39+import java.util.Vector;
40+import sun.net.www.ParseUtil;
41+
42+/**
43+ * The main entry point into AppletViewer.
44+ */
45+public class Main {
46+ /**
47+ * The file which contains all of the AppletViewer specific properties.
48+ */
49+ static File theUserPropertiesFile;
50+
51+ /**
52+ * The default key/value pairs for the required user-specific properties.
53+ */
54+ static final String [][] avDefaultUserProps = {
55+ // There's a bootstrapping problem here. If we don't have a proxyHost,
56+ // then we will not be able to connect to a URL outside the firewall;
57+ // however, there's no way for us to set the proxyHost without starting
58+ // AppletViewer. This problem existed before the re-write.
59+ {"http.proxyHost", ""},
60+ {"http.proxyPort", "80"},
61+ {"package.restrict.access.sun", "true"}
62+ };
63+
64+ static {
65+ File userHome = new File(System.getProperty("user.home"));
66+ // make sure we can write to this location
67+ userHome.canWrite();
68+
69+ theUserPropertiesFile = new File(userHome, ".appletviewer");
70+ }
71+
72+ // i18n
73+ private static AppletMessageHandler amh = new AppletMessageHandler("appletviewer");
74+
75+ /**
76+ * Member variables set according to options passed in to AppletViewer.
77+ */
78+ private boolean debugFlag = false;
79+ private boolean helpFlag = false;
80+ private String encoding = null;
81+ private boolean noSecurityFlag = false;
82+ private static boolean cmdLineTestFlag = false;
83+
84+ /**
85+ * The list of valid URLs passed in to AppletViewer.
86+ */
87+ private static Vector urlList = new Vector(1);
88+
89+ // This is used in init(). Getting rid of this is desirable but depends
90+ // on whether the property that uses it is necessary/standard.
91+ public static final String theVersion = System.getProperty("java.version");
92+
93+ /**
94+ * The main entry point into AppletViewer.
95+ */
96+ public static void main(String [] args) {
97+ Main m = new Main();
98+ int ret = m.run(args);
99+
100+ // Exit immediately if we got some sort of error along the way.
101+ // For debugging purposes, if we have passed in "-XcmdLineTest" we
102+ // force a premature exit.
103+ if ((ret != 0) || (cmdLineTestFlag))
104+ System.exit(ret);
105+ }
106+
107+ private int run(String [] args) {
108+ // DECODE ARGS
109+ try {
110+ if (args.length == 0) {
111+ usage();
112+ return 0;
113+ }
114+ for (int i = 0; i < args.length; ) {
115+ int j = decodeArg(args, i);
116+ if (j == 0) {
117+ throw new ParseException(lookup("main.err.unrecognizedarg",
118+ args[i]));
119+ }
120+ i += j;
121+ }
122+ } catch (ParseException e) {
123+ System.err.println(e.getMessage());
124+ return 1;
125+ }
126+
127+ // CHECK ARGUMENTS
128+ if (helpFlag) {
129+ usage();
130+ return 0;
131+ }
132+
133+ if (urlList.size() == 0) {
134+ System.err.println(lookup("main.err.inputfile"));
135+ return 1;
136+ }
137+
138+ if (debugFlag) {
139+ // START A DEBUG SESSION
140+ // Given the current architecture, we will end up decoding the
141+ // arguments again, but at least we are guaranteed to have
142+ // arguments which are valid.
143+ return invokeDebugger(args);
144+ }
145+
146+ // INSTALL THE SECURITY MANAGER (if necessary)
147+ if (!noSecurityFlag && (System.getSecurityManager() == null))
148+ init();
149+
150+ // LAUNCH APPLETVIEWER FOR EACH URL
151+ for (int i = 0; i < urlList.size(); i++) {
152+ try {
153+ // XXX 5/17 this parsing method should be changed/fixed so that
154+ // it doesn't do both parsing of the html file and launching of
155+ // the AppletPanel
156+ AppletViewer.parse((URL) urlList.elementAt(i), encoding);
157+ } catch (IOException e) {
158+ System.err.println(lookup("main.err.io", e.getMessage()));
159+ return 1;
160+ }
161+ }
162+ return 0;
163+ }
164+
165+ private static void usage() {
166+ System.out.println(lookup("usage"));
167+ }
168+
169+ /**
170+ * Decode a single argument in an array and return the number of elements
171+ * used.
172+ *
173+ * @param args The array of arguments.
174+ * @param i The argument to decode.
175+ * @return The number of array elements used when the argument was
176+ * decoded.
177+ * @exception ParseException
178+ * Thrown when there is a problem with something in the
179+ * argument array.
180+ */
181+ private int decodeArg(String [] args, int i) throws ParseException {
182+ String arg = args[i];
183+ int argc = args.length;
184+
185+ if ("-help".equalsIgnoreCase(arg) || "-?".equals(arg)) {
186+ helpFlag = true;
187+ return 1;
188+ } else if ("-encoding".equals(arg) && (i < argc - 1)) {
189+ if (encoding != null)
190+ throw new ParseException(lookup("main.err.dupoption", arg));
191+ encoding = args[++i];
192+ return 2;
193+ } else if ("-debug".equals(arg)) {
194+ debugFlag = true;
195+ return 1;
196+ } else if ("-Xnosecurity".equals(arg)) {
197+ // This is an undocumented (and, in the future, unsupported)
198+ // flag which prevents AppletViewer from installing its own
199+ // SecurityManager.
200+
201+ System.err.println();
202+ System.err.println(lookup("main.warn.nosecmgr"));
203+ System.err.println();
204+
205+ noSecurityFlag = true;
206+ return 1;
207+ } else if ("-XcmdLineTest".equals(arg)) {
208+ // This is an internal flag which should be used for command-line
209+ // testing. It instructs AppletViewer to force a premature exit
210+ // immediately after the applet has been launched.
211+ cmdLineTestFlag = true;
212+ return 1;
213+ } else if (arg.startsWith("-")) {
214+ throw new ParseException(lookup("main.err.unsupportedopt", arg));
215+ } else {
216+ // we found what we hope is a url
217+ URL url = parseURL(arg);
218+ if (url != null) {
219+ urlList.addElement(url);
220+ return 1;
221+ }
222+ }
223+ return 0;
224+ }
225+
226+ /**
227+ * Following the relevant RFC, construct a valid URL based on the passed in
228+ * string.
229+ *
230+ * @param url a string which represents either a relative or absolute URL.
231+ * @return a URL when the passed in string can be interpreted according
232+ * to the RFC, <code>null</code> otherwise.
233+ * @exception ParseException
234+ * Thrown when we are unable to construct a proper URL from the
235+ * passed in string.
236+ */
237+ private URL parseURL(String url) throws ParseException {
238+ URL u = null;
239+ // prefix of the urls with 'file' scheme
240+ String prefix = "file:";
241+
242+ try {
243+ if (url.indexOf(':') <= 1)
244+ {
245+ // appletviewer accepts only unencoded filesystem paths
246+ u = ParseUtil.fileToEncodedURL(new File(url));
247+ } else if (url.startsWith(prefix) &&
248+ url.length() != prefix.length() &&
249+ !(new File(url.substring(prefix.length())).isAbsolute()))
250+ {
251+ // relative file URL, like this "file:index.html"
252+ // ensure that this file URL is absolute
253+ // ParseUtil.fileToEncodedURL should be done last (see 6329251)
254+ String path = ParseUtil.fileToEncodedURL(new File(System.getProperty("user.dir"))).getPath() +
255+ url.substring(prefix.length());
256+ u = new URL("file", "", path);
257+ } else {
258+ // appletviewer accepts only encoded urls
259+ u = new URL(url);
260+ }
261+ } catch (MalformedURLException e) {
262+ throw new ParseException(lookup("main.err.badurl",
263+ url, e.getMessage()));
264+ }
265+
266+ return u;
267+ }
268+
269+ /**
270+ * Invoke the debugger with the arguments passed in to appletviewer.
271+ *
272+ * @param args The arguments passed into the debugger.
273+ * @return <code>0</code> if the debugger is invoked successfully,
274+ * <code>1</code> otherwise.
275+ */
276+ private int invokeDebugger(String [] args) {
277+ // CONSTRUCT THE COMMAND LINE
278+ String [] newArgs = new String[args.length + 1];
279+ int current = 0;
280+
281+ // Add a -classpath argument that prevents
282+ // the debugger from launching appletviewer with the default of
283+ // ".". appletviewer's classpath should never contain valid
284+ // classes since they will result in security exceptions.
285+ // Ideally, the classpath should be set to "", but the VM won't
286+ // allow an empty classpath, so a phony directory name is used.
287+ String phonyDir = System.getProperty("java.home") +
288+ File.separator + "phony";
289+ newArgs[current++] = "-Djava.class.path=" + phonyDir;
290+
291+ // Appletviewer's main class is the debuggee
292+ newArgs[current++] = "sun.applet.Main";
293+
294+ // Append all the of the original appletviewer arguments,
295+ // leaving out the "-debug" option.
296+ for (int i = 0; i < args.length; i++) {
297+ if (!("-debug".equals(args[i]))) {
298+ newArgs[current++] = args[i];
299+ }
300+ }
301+
302+ // LAUNCH THE DEBUGGER
303+ // Reflection is used for two reasons:
304+ // 1) The debugger classes are on classpath and thus must be loaded
305+ // by the application class loader. (Currently, appletviewer are
306+ // loaded through the boot class path out of rt.jar.)
307+ // 2) Reflection removes any build dependency between appletviewer
308+ // and jdb.
309+ try {
310+ Class c = Class.forName("com.sun.tools.example.debug.tty.TTY", true,
311+ ClassLoader.getSystemClassLoader());
312+ Method m = c.getDeclaredMethod("main",
313+ new Class[] { String[].class });
314+ m.invoke(null, new Object[] { newArgs });
315+ } catch (ClassNotFoundException cnfe) {
316+ System.err.println(lookup("main.debug.cantfinddebug"));
317+ return 1;
318+ } catch (NoSuchMethodException nsme) {
319+ System.err.println(lookup("main.debug.cantfindmain"));
320+ return 1;
321+ } catch (InvocationTargetException ite) {
322+ System.err.println(lookup("main.debug.exceptionindebug"));
323+ return 1;
324+ } catch (IllegalAccessException iae) {
325+ System.err.println(lookup("main.debug.cantaccess"));
326+ return 1;
327+ }
328+ return 0;
329+ }
330+
331+ private void init() {
332+ // GET APPLETVIEWER USER-SPECIFIC PROPERTIES
333+ Properties avProps = getAVProps();
334+
335+ // ADD OTHER RANDOM PROPERTIES
336+ // XXX 5/18 need to revisit why these are here, is there some
337+ // standard for what is available?
338+
339+ // Standard browser properties
340+ avProps.put("browser", "sun.applet.AppletViewer");
341+ avProps.put("browser.version", "1.06");
342+ avProps.put("browser.vendor", "Oracle Corporation");
343+ avProps.put("http.agent", "Java(tm) 2 SDK, Standard Edition v" + theVersion);
344+
345+ // Define which packages can be extended by applets
346+ // XXX 5/19 probably not needed, not checked in AppletSecurity
347+ avProps.put("package.restrict.definition.java", "true");
348+ avProps.put("package.restrict.definition.sun", "true");
349+
350+ // Define which properties can be read by applets.
351+ // A property named by "key" can be read only when its twin
352+ // property "key.applet" is true. The following ten properties
353+ // are open by default. Any other property can be explicitly
354+ // opened up by the browser user by calling appletviewer with
355+ // -J-Dkey.applet=true
356+ avProps.put("java.version.applet", "true");
357+ avProps.put("java.vendor.applet", "true");
358+ avProps.put("java.vendor.url.applet", "true");
359+ avProps.put("java.class.version.applet", "true");
360+ avProps.put("os.name.applet", "true");
361+ avProps.put("os.version.applet", "true");
362+ avProps.put("os.arch.applet", "true");
363+ avProps.put("file.separator.applet", "true");
364+ avProps.put("path.separator.applet", "true");
365+ avProps.put("line.separator.applet", "true");
366+
367+ // Read in the System properties. If something is going to be
368+ // over-written, warn about it.
369+ Properties sysProps = System.getProperties();
370+ for (Enumeration e = sysProps.propertyNames(); e.hasMoreElements(); ) {
371+ String key = (String) e.nextElement();
372+ String val = (String) sysProps.getProperty(key);
373+ String oldVal;
374+ if ((oldVal = (String) avProps.setProperty(key, val)) != null)
375+ System.err.println(lookup("main.warn.prop.overwrite", key,
376+ oldVal, val));
377+ }
378+
379+ // INSTALL THE PROPERTY LIST
380+ System.setProperties(avProps);
381+
382+ // Create and install the security manager
383+ if (!noSecurityFlag) {
384+ System.setSecurityManager(new AppletSecurity());
385+ } else {
386+ System.err.println(lookup("main.nosecmgr"));
387+ }
388+
389+ // REMIND: Create and install a socket factory!
390+ }
391+
392+ /**
393+ * Read the AppletViewer user-specific properties. Typically, these
394+ * properties should reside in the file $USER/.appletviewer. If this file
395+ * does not exist, one will be created. Information for this file will
396+ * be gleaned from $USER/.hotjava/properties. If that file does not exist,
397+ * then default values will be used.
398+ *
399+ * @return A Properties object containing all of the AppletViewer
400+ * user-specific properties.
401+ */
402+ private Properties getAVProps() {
403+ Properties avProps = new Properties();
404+
405+ File dotAV = theUserPropertiesFile;
406+ if (dotAV.exists()) {
407+ // we must have already done the conversion
408+ if (dotAV.canRead()) {
409+ // just read the file
410+ avProps = getAVProps(dotAV);
411+ } else {
412+ // send out warning and use defaults
413+ System.err.println(lookup("main.warn.cantreadprops",
414+ dotAV.toString()));
415+ avProps = setDefaultAVProps();
416+ }
417+ } else {
418+ // create the $USER/.appletviewer file
419+
420+ // see if $USER/.hotjava/properties exists
421+ File userHome = new File(System.getProperty("user.home"));
422+ File dotHJ = new File(userHome, ".hotjava");
423+ dotHJ = new File(dotHJ, "properties");
424+ if (dotHJ.exists()) {
425+ // just read the file
426+ avProps = getAVProps(dotHJ);
427+ } else {
428+ // send out warning and use defaults
429+ System.err.println(lookup("main.warn.cantreadprops",
430+ dotHJ.toString()));
431+ avProps = setDefaultAVProps();
432+ }
433+
434+ // SAVE THE FILE
435+ try {
436+ FileOutputStream out = new FileOutputStream(dotAV);
437+ avProps.store(out, lookup("main.prop.store"));
438+ out.close();
439+ } catch (IOException e) {
440+ System.err.println(lookup("main.err.prop.cantsave",
441+ dotAV.toString()));
442+ }
443+ }
444+ return avProps;
445+ }
446+
447+ /**
448+ * Set the AppletViewer user-specific properties to be the default values.
449+ *
450+ * @return A Properties object containing all of the AppletViewer
451+ * user-specific properties, set to the default values.
452+ */
453+ private Properties setDefaultAVProps() {
454+ Properties avProps = new Properties();
455+ for (int i = 0; i < avDefaultUserProps.length; i++) {
456+ avProps.setProperty(avDefaultUserProps[i][0],
457+ avDefaultUserProps[i][1]);
458+ }
459+ return avProps;
460+ }
461+
462+ /**
463+ * Given a file, find only the properties that are setable by AppletViewer.
464+ *
465+ * @param inFile A Properties file from which we select the properties of
466+ * interest.
467+ * @return A Properties object containing all of the AppletViewer
468+ * user-specific properties.
469+ */
470+ private Properties getAVProps(File inFile) {
471+ Properties avProps = new Properties();
472+
473+ // read the file
474+ Properties tmpProps = new Properties();
475+ try {
476+ FileInputStream in = new FileInputStream(inFile);
477+ tmpProps.load(new BufferedInputStream(in));
478+ in.close();
479+ } catch (IOException e) {
480+ System.err.println(lookup("main.err.prop.cantread",
481+ inFile.toString()));
482+ }
483+
484+ // pick off the properties we care about
485+ for (int i = 0; i < avDefaultUserProps.length; i++) {
486+ String value = tmpProps.getProperty(avDefaultUserProps[i][0]);
487+ if (value != null) {
488+ // the property exists in the file, so replace the default
489+ avProps.setProperty(avDefaultUserProps[i][0], value);
490+ } else {
491+ // just use the default
492+ avProps.setProperty(avDefaultUserProps[i][0],
493+ avDefaultUserProps[i][1]);
494+ }
495+ }
496+ return avProps;
497+ }
498+
499+ /**
500+ * Methods for easier i18n handling.
501+ */
502+
503+ private static String lookup(String key) {
504+ return amh.getMessage(key);
505+ }
506+
507+ private static String lookup(String key, String arg0) {
508+ return amh.getMessage(key, arg0);
509+ }
510+
511+ private static String lookup(String key, String arg0, String arg1) {
512+ return amh.getMessage(key, arg0, arg1);
513+ }
514+
515+ private static String lookup(String key, String arg0, String arg1,
516+ String arg2) {
517+ return amh.getMessage(key, arg0, arg1, arg2);
518+ }
519+
520+ class ParseException extends RuntimeException
521+ {
522+ public ParseException(String msg) {
523+ super(msg);
524+ }
525+
526+ public ParseException(Throwable t) {
527+ super(t.getMessage());
528+ this.t = t;
529+ }
530+
531+ Throwable t = null;
532+ }
533+}