mirror of
https://github.com/revanced/ARSCLib.git
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82 lines
2.9 KiB
Java
82 lines
2.9 KiB
Java
/*
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* Copyright (C) 2022 github.com/REAndroid
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.reandroid.archive2.block;
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import com.reandroid.archive2.ZipSignature;
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public class LocalFileHeader extends CommonHeader {
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private DataDescriptor dataDescriptor;
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public LocalFileHeader(){
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super(OFFSET_fileName, ZipSignature.LOCAL_FILE, OFFSET_general_purpose);
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}
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public LocalFileHeader(String name){
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this();
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setFileName(name);
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}
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public void mergeZeroValues(CentralEntryHeader ceh){
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if(getCrc()==0){
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setCrc(ceh.getCrc());
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}
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if(getSize()==0){
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setSize(ceh.getSize());
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}
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if(getCompressedSize()==0){
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setCompressedSize(ceh.getCompressedSize());
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}
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if(getGeneralPurposeFlag().getValue()==0){
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getGeneralPurposeFlag().setValue(ceh.getGeneralPurposeFlag().getValue());
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}
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}
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public DataDescriptor getDataDescriptor() {
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return dataDescriptor;
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}
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public void setDataDescriptor(DataDescriptor dataDescriptor){
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this.dataDescriptor = dataDescriptor;
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}
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public static LocalFileHeader fromCentralEntryHeader(CentralEntryHeader ceh){
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LocalFileHeader lfh = new LocalFileHeader();
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lfh.setSignature(ZipSignature.LOCAL_FILE);
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lfh.setVersionMadeBy(ceh.getVersionMadeBy());
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lfh.getGeneralPurposeFlag().setValue(ceh.getGeneralPurposeFlag().getValue());
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lfh.setMethod(ceh.getMethod());
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lfh.setDosTime(ceh.getDosTime());
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lfh.setCrc(ceh.getCrc());
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lfh.setCompressedSize(ceh.getCompressedSize());
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lfh.setSize(ceh.getSize());
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lfh.setFileName(ceh.getFileName());
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lfh.setExtra(ceh.getExtra());
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return lfh;
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}
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private static final int OFFSET_signature = 0;
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private static final int OFFSET_versionMadeBy = 4;
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private static final int OFFSET_platform = 5;
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private static final int OFFSET_general_purpose = 6;
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private static final int OFFSET_method = 8;
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private static final int OFFSET_dos_time = 10;
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private static final int OFFSET_crc = 14;
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private static final int OFFSET_compressed_size = 18;
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private static final int OFFSET_size = 22;
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private static final int OFFSET_fileNameLength = 26;
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private static final int OFFSET_extraLength = 28;
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private static final int OFFSET_fileName = 30;
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}
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