diff options
Diffstat (limited to 'trunk/infrastructure/rhino1_7R1/toolsrc/org/mozilla/javascript/tools/shell/Main.java')
| -rw-r--r-- | trunk/infrastructure/rhino1_7R1/toolsrc/org/mozilla/javascript/tools/shell/Main.java | 638 |
1 files changed, 0 insertions, 638 deletions
diff --git a/trunk/infrastructure/rhino1_7R1/toolsrc/org/mozilla/javascript/tools/shell/Main.java b/trunk/infrastructure/rhino1_7R1/toolsrc/org/mozilla/javascript/tools/shell/Main.java deleted file mode 100644 index 9120892..0000000 --- a/trunk/infrastructure/rhino1_7R1/toolsrc/org/mozilla/javascript/tools/shell/Main.java +++ /dev/null @@ -1,638 +0,0 @@ -/* -*- Mode: java; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- - * - * ***** BEGIN LICENSE BLOCK ***** - * Version: MPL 1.1/GPL 2.0 - * - * The contents of this file are subject to the Mozilla Public License Version - * 1.1 (the "License"); you may not use this file except in compliance with - * the License. You may obtain a copy of the License at - * http://www.mozilla.org/MPL/ - * - * Software distributed under the License is distributed on an "AS IS" basis, - * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License - * for the specific language governing rights and limitations under the - * License. - * - * The Original Code is Rhino code, released - * May 6, 1998. - * - * The Initial Developer of the Original Code is - * Netscape Communications Corporation. - * Portions created by the Initial Developer are Copyright (C) 1997-1999 - * the Initial Developer. All Rights Reserved. - * - * Contributor(s): - * Patrick Beard - * Norris Boyd - * Igor Bukanov - * Rob Ginda - * Kurt Westerfeld - * - * Alternatively, the contents of this file may be used under the terms of - * the GNU General Public License Version 2 or later (the "GPL"), in which - * case the provisions of the GPL are applicable instead of those above. If - * you wish to allow use of your version of this file only under the terms of - * the GPL and not to allow others to use your version of this file under the - * MPL, indicate your decision by deleting the provisions above and replacing - * them with the notice and other provisions required by the GPL. If you do - * not delete the provisions above, a recipient may use your version of this - * file under either the MPL or the GPL. - * - * ***** END LICENSE BLOCK ***** */ - -package org.mozilla.javascript.tools.shell; - -import java.io.*; -import java.net.URL; -import java.net.URLConnection; -import java.net.MalformedURLException; -import java.util.*; -import org.mozilla.javascript.*; -import org.mozilla.javascript.tools.ToolErrorReporter; - -/** - * The shell program. - * - * Can execute scripts interactively or in batch mode at the command line. - * An example of controlling the JavaScript engine. - * - * @author Norris Boyd - */ -public class Main -{ - public static ShellContextFactory - shellContextFactory = new ShellContextFactory(); - - public static Global global = new Global(); - static protected ToolErrorReporter errorReporter; - static protected int exitCode = 0; - static private final int EXITCODE_RUNTIME_ERROR = 3; - static private final int EXITCODE_FILE_NOT_FOUND = 4; - static boolean processStdin = true; - static Vector fileList = new Vector(5); - private static SecurityProxy securityImpl; - - static { - global.initQuitAction(new IProxy(IProxy.SYSTEM_EXIT)); - } - - /** - * Proxy class to avoid proliferation of anonymous classes. - */ - private static class IProxy implements ContextAction, QuitAction - { - private static final int PROCESS_FILES = 1; - private static final int EVAL_INLINE_SCRIPT = 2; - private static final int SYSTEM_EXIT = 3; - - private int type; - String[] args; - String scriptText; - - IProxy(int type) - { - this.type = type; - } - - public Object run(Context cx) - { - if (type == PROCESS_FILES) { - processFiles(cx, args); - } else if (type == EVAL_INLINE_SCRIPT) { - Script script = loadScriptFromSource(cx, scriptText, - "<command>", 1, null); - if (script != null) { - evaluateScript(script, cx, getGlobal()); - } - } else { - throw Kit.codeBug(); - } - return null; - } - - public void quit(Context cx, int exitCode) - { - if (type == SYSTEM_EXIT) { - System.exit(exitCode); - return; - } - throw Kit.codeBug(); - } - } - - /** - * Main entry point. - * - * Process arguments as would a normal Java program. Also - * create a new Context and associate it with the current thread. - * Then set up the execution environment and begin to - * execute scripts. - */ - public static void main(String args[]) { - try { - if (Boolean.getBoolean("rhino.use_java_policy_security")) { - initJavaPolicySecuritySupport(); - } - } catch (SecurityException ex) { - ex.printStackTrace(System.err); - } - - int result = exec(args); - if (result != 0) { - System.exit(result); - } - } - - /** - * Execute the given arguments, but don't System.exit at the end. - */ - public static int exec(String origArgs[]) - { - errorReporter = new ToolErrorReporter(false, global.getErr()); - shellContextFactory.setErrorReporter(errorReporter); - String[] args = processOptions(origArgs); - if (processStdin) - fileList.addElement(null); - - if (!global.initialized) { - global.init(shellContextFactory); - } - IProxy iproxy = new IProxy(IProxy.PROCESS_FILES); - iproxy.args = args; - shellContextFactory.call(iproxy); - - return exitCode; - } - - static void processFiles(Context cx, String[] args) - { - // define "arguments" array in the top-level object: - // need to allocate new array since newArray requires instances - // of exactly Object[], not ObjectSubclass[] - Object[] array = new Object[args.length]; - System.arraycopy(args, 0, array, 0, args.length); - Scriptable argsObj = cx.newArray(global, array); - global.defineProperty("arguments", argsObj, - ScriptableObject.DONTENUM); - - for (int i=0; i < fileList.size(); i++) { - processSource(cx, (String) fileList.elementAt(i)); - } - - } - - public static Global getGlobal() - { - return global; - } - - /** - * Parse arguments. - */ - public static String[] processOptions(String args[]) - { - String usageError; - goodUsage: for (int i = 0; ; ++i) { - if (i == args.length) { - return new String[0]; - } - String arg = args[i]; - if (!arg.startsWith("-")) { - processStdin = false; - fileList.addElement(arg); - String[] result = new String[args.length - i - 1]; - System.arraycopy(args, i+1, result, 0, args.length - i - 1); - return result; - } - if (arg.equals("-version")) { - if (++i == args.length) { - usageError = arg; - break goodUsage; - } - int version; - try { - version = Integer.parseInt(args[i]); - } catch (NumberFormatException ex) { - usageError = args[i]; - break goodUsage; - } - if (!Context.isValidLanguageVersion(version)) { - usageError = args[i]; - break goodUsage; - } - shellContextFactory.setLanguageVersion(version); - continue; - } - if (arg.equals("-opt") || arg.equals("-O")) { - if (++i == args.length) { - usageError = arg; - break goodUsage; - } - int opt; - try { - opt = Integer.parseInt(args[i]); - } catch (NumberFormatException ex) { - usageError = args[i]; - break goodUsage; - } - if (opt == -2) { - // Compatibility with Cocoon Rhino fork - opt = -1; - } else if (!Context.isValidOptimizationLevel(opt)) { - usageError = args[i]; - break goodUsage; - } - shellContextFactory.setOptimizationLevel(opt); - continue; - } - if (arg.equals("-strict")) { - shellContextFactory.setStrictMode(true); - errorReporter.setIsReportingWarnings(true); - continue; - } - if (arg.equals("-fatal-warnings")) { - shellContextFactory.setWarningAsError(true); - continue; - } - if (arg.equals("-e")) { - processStdin = false; - if (++i == args.length) { - usageError = arg; - break goodUsage; - } - if (!global.initialized) { - global.init(shellContextFactory); - } - IProxy iproxy = new IProxy(IProxy.EVAL_INLINE_SCRIPT); - iproxy.scriptText = args[i]; - shellContextFactory.call(iproxy); - continue; - } - if (arg.equals("-w")) { - errorReporter.setIsReportingWarnings(true); - continue; - } - if (arg.equals("-f")) { - processStdin = false; - if (++i == args.length) { - usageError = arg; - break goodUsage; - } - fileList.addElement(args[i].equals("-") ? null : args[i]); - continue; - } - if (arg.equals("-sealedlib")) { - global.setSealedStdLib(true); - continue; - } - if (arg.equals("-debug")) { - shellContextFactory.setGeneratingDebug(true); - continue; - } - if (arg.equals("-?") || - arg.equals("-help")) { - // print usage message - global.getOut().println( - ToolErrorReporter.getMessage("msg.shell.usage", Main.class.getName())); - System.exit(1); - } - usageError = arg; - break goodUsage; - } - // print error and usage message - global.getOut().println( - ToolErrorReporter.getMessage("msg.shell.invalid", usageError)); - global.getOut().println( - ToolErrorReporter.getMessage("msg.shell.usage", Main.class.getName())); - System.exit(1); - return null; - } - - private static void initJavaPolicySecuritySupport() - { - Throwable exObj; - try { - Class cl = Class.forName - ("org.mozilla.javascript.tools.shell.JavaPolicySecurity"); - securityImpl = (SecurityProxy)cl.newInstance(); - SecurityController.initGlobal(securityImpl); - return; - } catch (ClassNotFoundException ex) { - exObj = ex; - } catch (IllegalAccessException ex) { - exObj = ex; - } catch (InstantiationException ex) { - exObj = ex; - } catch (LinkageError ex) { - exObj = ex; - } - throw Kit.initCause(new IllegalStateException( - "Can not load security support: "+exObj), exObj); - } - - /** - * Evaluate JavaScript source. - * - * @param cx the current context - * @param filename the name of the file to compile, or null - * for interactive mode. - */ - public static void processSource(Context cx, String filename) - { - if (filename == null || filename.equals("-")) { - PrintStream ps = global.getErr(); - if (filename == null) { - // print implementation version - ps.println(cx.getImplementationVersion()); - } - - // Use the interpreter for interactive input - cx.setOptimizationLevel(-1); - - BufferedReader in = new BufferedReader - (new InputStreamReader(global.getIn())); - int lineno = 1; - boolean hitEOF = false; - while (!hitEOF) { - String[] prompts = global.getPrompts(cx); - if (filename == null) - ps.print(prompts[0]); - ps.flush(); - String source = ""; - - // Collect lines of source to compile. - while (true) { - String newline; - try { - newline = in.readLine(); - } - catch (IOException ioe) { - ps.println(ioe.toString()); - break; - } - if (newline == null) { - hitEOF = true; - break; - } - source = source + newline + "\n"; - lineno++; - if (cx.stringIsCompilableUnit(source)) - break; - ps.print(prompts[1]); - } - Script script = loadScriptFromSource(cx, source, "<stdin>", - lineno, null); - if (script != null) { - Object result = evaluateScript(script, cx, global); - // Avoid printing out undefined or function definitions. - if (result != Context.getUndefinedValue() && - !(result instanceof Function && - source.trim().startsWith("function"))) - { - try { - ps.println(Context.toString(result)); - } catch (RhinoException rex) { - ToolErrorReporter.reportException( - cx.getErrorReporter(), rex); - } - } - NativeArray h = global.history; - h.put((int)h.getLength(), h, source); - } - } - ps.println(); - } else { - processFile(cx, global, filename); - } - System.gc(); - } - - public static void processFile(Context cx, Scriptable scope, - String filename) - { - if (securityImpl == null) { - processFileSecure(cx, scope, filename, null); - } else { - securityImpl.callProcessFileSecure(cx, scope, filename); - } - } - - static void processFileSecure(Context cx, Scriptable scope, - String path, Object securityDomain) - { - Script script; - if (path.endsWith(".class")) { - script = loadCompiledScript(cx, path, securityDomain); - } else { - String source = (String)readFileOrUrl(path, true); - if (source == null) { - exitCode = EXITCODE_FILE_NOT_FOUND; - return; - } - - // Support the executable script #! syntax: If - // the first line begins with a '#', treat the whole - // line as a comment. - if (source.length() > 0 && source.charAt(0) == '#') { - for (int i = 1; i != source.length(); ++i) { - int c = source.charAt(i); - if (c == '\n' || c == '\r') { - source = source.substring(i); - break; - } - } - } - script = loadScriptFromSource(cx, source, path, 1, securityDomain); - } - if (script != null) { - evaluateScript(script, cx, scope); - } - } - - public static Script loadScriptFromSource(Context cx, String scriptSource, - String path, int lineno, - Object securityDomain) - { - try { - return cx.compileString(scriptSource, path, lineno, - securityDomain); - } catch (EvaluatorException ee) { - // Already printed message. - exitCode = EXITCODE_RUNTIME_ERROR; - } catch (RhinoException rex) { - ToolErrorReporter.reportException( - cx.getErrorReporter(), rex); - exitCode = EXITCODE_RUNTIME_ERROR; - } catch (VirtualMachineError ex) { - // Treat StackOverflow and OutOfMemory as runtime errors - ex.printStackTrace(); - String msg = ToolErrorReporter.getMessage( - "msg.uncaughtJSException", ex.toString()); - exitCode = EXITCODE_RUNTIME_ERROR; - Context.reportError(msg); - } - return null; - } - - private static Script loadCompiledScript(Context cx, String path, - Object securityDomain) - { - byte[] data = (byte[])readFileOrUrl(path, false); - if (data == null) { - exitCode = EXITCODE_FILE_NOT_FOUND; - return null; - } - // XXX: For now extract class name of compiled Script from path - // instead of parsing class bytes - int nameStart = path.lastIndexOf('/'); - if (nameStart < 0) { - nameStart = 0; - } else { - ++nameStart; - } - int nameEnd = path.lastIndexOf('.'); - if (nameEnd < nameStart) { - // '.' does not exist in path (nameEnd < 0) - // or it comes before nameStart - nameEnd = path.length(); - } - String name = path.substring(nameStart, nameEnd); - try { - GeneratedClassLoader loader = SecurityController.createLoader(cx.getApplicationClassLoader(), securityDomain); - Class clazz = loader.defineClass(name, data); - loader.linkClass(clazz); - if (!Script.class.isAssignableFrom(clazz)) { - throw Context.reportRuntimeError("msg.must.implement.Script"); - } - return (Script) clazz.newInstance(); - } catch (RhinoException rex) { - ToolErrorReporter.reportException( - cx.getErrorReporter(), rex); - exitCode = EXITCODE_RUNTIME_ERROR; - } catch (IllegalAccessException iaex) { - exitCode = EXITCODE_RUNTIME_ERROR; - Context.reportError(iaex.toString()); - } catch (InstantiationException inex) { - exitCode = EXITCODE_RUNTIME_ERROR; - Context.reportError(inex.toString()); - } - return null; - } - - public static Object evaluateScript(Script script, Context cx, - Scriptable scope) - { - try { - return script.exec(cx, scope); - } catch (RhinoException rex) { - ToolErrorReporter.reportException( - cx.getErrorReporter(), rex); - exitCode = EXITCODE_RUNTIME_ERROR; - } catch (VirtualMachineError ex) { - // Treat StackOverflow and OutOfMemory as runtime errors - ex.printStackTrace(); - String msg = ToolErrorReporter.getMessage( - "msg.uncaughtJSException", ex.toString()); - exitCode = EXITCODE_RUNTIME_ERROR; - Context.reportError(msg); - } - return Context.getUndefinedValue(); - } - - public static InputStream getIn() { - return getGlobal().getIn(); - } - - public static void setIn(InputStream in) { - getGlobal().setIn(in); - } - - public static PrintStream getOut() { - return getGlobal().getOut(); - } - - public static void setOut(PrintStream out) { - getGlobal().setOut(out); - } - - public static PrintStream getErr() { - return getGlobal().getErr(); - } - - public static void setErr(PrintStream err) { - getGlobal().setErr(err); - } - - /** - * Read file or url specified by <tt>path</tt>. - * @return file or url content as <tt>byte[]</tt> or as <tt>String</tt> if - * <tt>convertToString</tt> is true. - */ - private static Object readFileOrUrl(String path, boolean convertToString) - { - URL url = null; - // Assume path is URL if it contains dot and there are at least - // 2 characters in the protocol part. The later allows under Windows - // to interpret paths with driver letter as file, not URL. - if (path.indexOf(':') >= 2) { - try { - url = new URL(path); - } catch (MalformedURLException ex) { - } - } - - InputStream is = null; - int capacityHint = 0; - if (url == null) { - File file = new File(path); - capacityHint = (int)file.length(); - try { - is = new FileInputStream(file); - } catch (IOException ex) { - Context.reportError(ToolErrorReporter.getMessage( - "msg.couldnt.open", path)); - return null; - } - } else { - try { - URLConnection uc = url.openConnection(); - is = uc.getInputStream(); - capacityHint = uc.getContentLength(); - // Ignore insane values for Content-Length - if (capacityHint > (1 << 20)) { - capacityHint = -1; - } - } catch (IOException ex) { - Context.reportError(ToolErrorReporter.getMessage( - "msg.couldnt.open.url", url.toString(), ex.toString())); - return null; - } - } - if (capacityHint <= 0) { - capacityHint = 4096; - } - - byte[] data; - try { - try { - data = Kit.readStream(is, capacityHint); - } finally { - is.close(); - } - } catch (IOException ex) { - Context.reportError(ex.toString()); - return null; - } - - Object result; - if (!convertToString) { - result = data; - } else { - // Convert to String using the default encoding - // XXX: Use 'charset=' argument of Content-Type if URL? - result = new String(data); - } - return result; - } - -} |