| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.kerby.asn1; |
| |
| import org.apache.kerby.asn1.parse.Asn1Item; |
| import org.apache.kerby.asn1.parse.Asn1ParseResult; |
| import org.apache.kerby.asn1.parse.Asn1Parser; |
| import org.apache.kerby.asn1.type.Asn1Any; |
| import org.apache.kerby.asn1.type.Asn1Application; |
| import org.apache.kerby.asn1.type.Asn1Choice; |
| import org.apache.kerby.asn1.type.Asn1Simple; |
| import org.apache.kerby.asn1.type.Asn1Type; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| public final class Asn1Dumper { |
| private boolean withType; |
| private StringBuilder builder = new StringBuilder(); |
| |
| public Asn1Dumper() { |
| this.withType = true; |
| } |
| |
| public Asn1Dumper(boolean withType) { |
| this.withType = withType; |
| } |
| |
| public boolean withType() { |
| return withType; |
| } |
| |
| public String output() { |
| return builder.toString(); |
| } |
| |
| public void parseAndDump(byte[] content) throws IOException { |
| parseAndDump(ByteBuffer.wrap(content)); |
| } |
| |
| public void decodeAndDump(byte[] content) throws IOException { |
| decodeAndDump(ByteBuffer.wrap(content)); |
| } |
| |
| public void decodeAndDump(ByteBuffer content) throws IOException { |
| Asn1Type value = Asn1.decode(content); |
| dumpType(0, value); |
| } |
| |
| public void parseAndDump(ByteBuffer content) throws IOException { |
| Asn1ParseResult parseResult = Asn1Parser.parse(content); |
| dumpParseResult(0, parseResult); |
| } |
| |
| public void dumpType(Asn1Type value) { |
| dumpType(0, value); |
| } |
| |
| public Asn1Dumper dumpType(int indents, Asn1Type value) { |
| if (value == null) { |
| indent(indents).append("Null"); |
| } else if (value instanceof Asn1Simple) { |
| indent(indents).append(value.toString()); |
| } else if (value instanceof Asn1Dumpable) { |
| Asn1Dumpable dumpable = (Asn1Dumpable) value; |
| dumpable.dumpWith(this, indents); |
| } else if (value instanceof Asn1Application) { |
| indent(indents).append(value.toString()); |
| } else if (value instanceof Asn1Any) { |
| indent(indents).append("<Any>"); |
| } else if (value instanceof Asn1Choice) { |
| indent(indents).append("<Choice>"); |
| } else { |
| indent(indents).append("<Unknown>"); |
| } |
| |
| return this; |
| } |
| |
| public Asn1Dumper dumpParseResult(int indents, Asn1ParseResult value) { |
| if (value == null) { |
| indent(indents).append("Null"); |
| } else if (value instanceof Asn1Item) { |
| indent(indents).append(value.toString()); |
| } else if (value instanceof Asn1Dumpable) { |
| Asn1Dumpable dumpable = (Asn1Dumpable) value; |
| dumpable.dumpWith(this, indents); |
| } else { |
| indent(indents).append("<Unknown>"); |
| } |
| |
| return this; |
| } |
| |
| public Asn1Dumper indent(int numSpaces) { |
| for (int i = 0; i < numSpaces; i++) { |
| builder.append(' '); |
| } |
| return this; |
| } |
| |
| public Asn1Dumper append(Asn1Simple<?> simpleValue) { |
| if (simpleValue != null) { |
| builder.append(simpleValue.toString()); |
| } else { |
| builder.append("null"); |
| } |
| return this; |
| } |
| |
| public Asn1Dumper append(String string) { |
| builder.append(string); |
| return this; |
| } |
| |
| public Asn1Dumper dumpTypeInfo(Class<?> cls) { |
| appendType(cls).newLine(); |
| return this; |
| } |
| |
| public Asn1Dumper dumpTypeInfo(int indents, Class<?> cls) { |
| if (withType()) { |
| indent(indents).appendType(cls).newLine(); |
| } |
| return this; |
| } |
| |
| private Asn1Dumper appendType(Class<?> cls) { |
| builder.append("<").append(cls.getSimpleName()).append(">"); |
| return this; |
| } |
| |
| public Asn1Dumper newLine() { |
| builder.append("\n"); |
| return this; |
| } |
| |
| public Asn1Dumper dumpData(String hexData) { |
| int range = 100; |
| int pos = range; |
| |
| while (pos < hexData.length()) { |
| System.out.println(hexData.substring(pos - range, pos)); |
| pos = pos + range; |
| } |
| System.out.println(hexData.substring(pos - range, hexData.length())); |
| |
| return this; |
| } |
| } |