| /* |
| * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package sun.security.util; |
| |
| import java.math.BigInteger; |
| import java.util.Locale; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| /** |
| * A utility class for debuging. |
| * |
| * @author Roland Schemers |
| */ |
| public class Debug { |
| |
| private static final String args = null; |
| |
| private final String prefix; |
| |
| private Debug(String prefix) { |
| this.prefix = prefix; |
| } |
| |
| /* |
| From public static void Help() : Serves as a documentation of the |
| values that "args" accepts. |
| |
| System.err.println(); |
| System.err.println("all turn on all debugging"); |
| System.err.println("access print all checkPermission results"); |
| System.err.println("combiner SubjectDomainCombiner debugging"); |
| System.err.println("gssloginconfig"); |
| System.err.println("configfile JAAS ConfigFile loading"); |
| System.err.println("configparser JAAS ConfigFile parsing"); |
| System.err.println(" GSS LoginConfigImpl debugging"); |
| System.err.println("jar jar verification"); |
| System.err.println("logincontext login context results"); |
| System.err.println("policy loading and granting"); |
| System.err.println("provider security provider debugging"); |
| System.err.println("scl permissions SecureClassLoader assigns"); |
| System.err.println(); |
| System.err.println("The following can be used with access:"); |
| System.err.println(); |
| System.err.println("stack include stack trace"); |
| System.err.println("domain dump all domains in context"); |
| System.err.println("failure before throwing exception, dump stack"); |
| System.err.println(" and domain that didn't have permission"); |
| System.err.println(); |
| System.err.println("The following can be used with stack and domain:"); |
| System.err.println(); |
| System.err.println("permission=<classname>"); |
| System.err.println(" only dump output if specified permission"); |
| System.err.println(" is being checked"); |
| System.err.println("codebase=<URL>"); |
| System.err.println(" only dump output if specified codebase"); |
| System.err.println(" is being checked"); |
| |
| System.err.println(); |
| System.err.println("Note: Separate multiple options with a comma"); |
| System.exit(0); |
| */ |
| |
| /** |
| * Get a Debug object corresponding to whether or not the given |
| * option is set. Set the prefix to be the same as option. |
| */ |
| |
| public static Debug getInstance(String option) |
| { |
| return getInstance(option, option); |
| } |
| |
| /** |
| * Get a Debug object corresponding to whether or not the given |
| * option is set. Set the prefix to be prefix. |
| */ |
| public static Debug getInstance(String option, String prefix) |
| { |
| if (isOn(option)) { |
| Debug d = new Debug(prefix); |
| return d; |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * True if the system property "security.debug" contains the |
| * string "option". |
| */ |
| public static boolean isOn(String option) |
| { |
| if (args == null) |
| return false; |
| else { |
| if (args.indexOf("all") != -1) |
| return true; |
| else |
| return (args.indexOf(option) != -1); |
| } |
| } |
| |
| /** |
| * print a message to stderr that is prefixed with the prefix |
| * created from the call to getInstance. |
| */ |
| |
| public void println(String message) |
| { |
| System.err.println(prefix + ": "+message); |
| } |
| |
| /** |
| * print a blank line to stderr that is prefixed with the prefix. |
| */ |
| |
| public void println() |
| { |
| System.err.println(prefix + ":"); |
| } |
| |
| |
| /** |
| * return a hexadecimal printed representation of the specified |
| * BigInteger object. the value is formatted to fit on lines of |
| * at least 75 characters, with embedded newlines. Words are |
| * separated for readability, with eight words (32 bytes) per line. |
| */ |
| public static String toHexString(BigInteger b) { |
| String hexValue = b.toString(16); |
| StringBuffer buf = new StringBuffer(hexValue.length()*2); |
| |
| if (hexValue.startsWith("-")) { |
| buf.append(" -"); |
| hexValue = hexValue.substring(1); |
| } else { |
| buf.append(" "); // four spaces |
| } |
| if ((hexValue.length()%2) != 0) { |
| // add back the leading 0 |
| hexValue = "0" + hexValue; |
| } |
| int i=0; |
| while (i < hexValue.length()) { |
| // one byte at a time |
| buf.append(hexValue.substring(i, i+2)); |
| i+=2; |
| if (i!= hexValue.length()) { |
| if ((i%64) == 0) { |
| buf.append("\n "); // line after eight words |
| } else if (i%8 == 0) { |
| buf.append(" "); // space between words |
| } |
| } |
| } |
| return buf.toString(); |
| } |
| |
| /** |
| * change a string into lower case except permission classes and URLs. |
| */ |
| private static String marshal(String args) { |
| if (args != null) { |
| StringBuffer target = new StringBuffer(); |
| StringBuffer source = new StringBuffer(args); |
| |
| // obtain the "permission=<classname>" options |
| // the syntax of classname: IDENTIFIER.IDENTIFIER |
| // the regular express to match a class name: |
| // "[a-zA-Z_$][a-zA-Z0-9_$]*([.][a-zA-Z_$][a-zA-Z0-9_$]*)*" |
| String keyReg = "[Pp][Ee][Rr][Mm][Ii][Ss][Ss][Ii][Oo][Nn]="; |
| String keyStr = "permission="; |
| String reg = keyReg + |
| "[a-zA-Z_$][a-zA-Z0-9_$]*([.][a-zA-Z_$][a-zA-Z0-9_$]*)*"; |
| Pattern pattern = Pattern.compile(reg); |
| Matcher matcher = pattern.matcher(source); |
| StringBuffer left = new StringBuffer(); |
| while (matcher.find()) { |
| String matched = matcher.group(); |
| target.append(matched.replaceFirst(keyReg, keyStr)); |
| target.append(" "); |
| |
| // delete the matched sequence |
| matcher.appendReplacement(left, ""); |
| } |
| matcher.appendTail(left); |
| source = left; |
| |
| // obtain the "codebase=<URL>" options |
| // the syntax of URL is too flexible, and here assumes that the |
| // URL contains no space, comma(','), and semicolon(';'). That |
| // also means those characters also could be used as separator |
| // after codebase option. |
| // However, the assumption is incorrect in some special situation |
| // when the URL contains comma or semicolon |
| keyReg = "[Cc][Oo][Dd][Ee][Bb][Aa][Ss][Ee]="; |
| keyStr = "codebase="; |
| reg = keyReg + "[^, ;]*"; |
| pattern = Pattern.compile(reg); |
| matcher = pattern.matcher(source); |
| left = new StringBuffer(); |
| while (matcher.find()) { |
| String matched = matcher.group(); |
| target.append(matched.replaceFirst(keyReg, keyStr)); |
| target.append(" "); |
| |
| // delete the matched sequence |
| matcher.appendReplacement(left, ""); |
| } |
| matcher.appendTail(left); |
| source = left; |
| |
| // convert the rest to lower-case characters |
| target.append(source.toString().toLowerCase(Locale.ENGLISH)); |
| |
| return target.toString(); |
| } |
| |
| return null; |
| } |
| |
| private final static char[] hexDigits = "0123456789abcdef".toCharArray(); |
| |
| public static String toString(byte[] b) { |
| if (b == null) { |
| return "(null)"; |
| } |
| StringBuilder sb = new StringBuilder(b.length * 3); |
| for (int i = 0; i < b.length; i++) { |
| int k = b[i] & 0xff; |
| if (i != 0) { |
| sb.append(':'); |
| } |
| sb.append(hexDigits[k >>> 4]); |
| sb.append(hexDigits[k & 0xf]); |
| } |
| return sb.toString(); |
| } |
| |
| } |