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https://github.com/revanced/ARSCLib.git
synced 2025-04-30 14:24:25 +02:00
make general purpose Decoder for Value
This commit is contained in:
REAndroid
parent
fbf6b9ed6b
commit
c5c4a042a7
147
src/main/java/com/reandroid/arsc/decoder/Decoder.java
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147
src/main/java/com/reandroid/arsc/decoder/Decoder.java
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@ -0,0 +1,147 @@
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/*
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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.arsc.decoder;
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import com.reandroid.apk.AndroidFrameworks;
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import com.reandroid.apk.FrameworkApk;
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import com.reandroid.arsc.ApkFile;
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import com.reandroid.arsc.chunk.MainChunk;
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import com.reandroid.arsc.chunk.PackageBlock;
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import com.reandroid.arsc.chunk.TableBlock;
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import com.reandroid.arsc.chunk.xml.AndroidManifestBlock;
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import com.reandroid.arsc.chunk.xml.ResXmlDocument;
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import com.reandroid.arsc.group.EntryGroup;
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import com.reandroid.arsc.value.AttributeValue;
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import com.reandroid.arsc.value.Value;
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import com.reandroid.arsc.value.ValueType;
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import com.reandroid.common.EntryStore;
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import java.io.IOException;
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public class Decoder {
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private final EntryStore entryStore;
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private int currentPackageId;
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public Decoder(EntryStore entryStore, int currentPackageId){
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this.entryStore = entryStore;
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this.currentPackageId = currentPackageId;
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}
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public String decodeResourceName(int resourceId){
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EntryGroup entryGroup = getEntryStore().getEntryGroup(resourceId);
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if(entryGroup!=null){
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return entryGroup.getSpecName();
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}
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return null;
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}
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public String decodeValue(Value value){
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if(value==null){
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return null;
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}
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ValueType valueType = value.getValueType();
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if(valueType == ValueType.STRING){
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return value.getValueAsString();
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}
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return ValueDecoder.decode(getEntryStore(), getCurrentPackageId(), value);
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}
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public String decodeAttributeValue(AttributeValue attributeValue){
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if(attributeValue == null){
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return null;
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}
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return ValueDecoder.decode(getEntryStore(), getCurrentPackageId(), attributeValue);
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}
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private EntryStore getEntryStore() {
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return entryStore;
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}
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public int getCurrentPackageId() {
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return currentPackageId;
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}
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public void setCurrentPackageId(int currentPackageId) {
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this.currentPackageId = currentPackageId;
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}
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public static Decoder create(ResXmlDocument resXmlDocument){
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MainChunk mainChunk = resXmlDocument.getMainChunk();
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if(mainChunk == null){
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return getNullEntryStoreDecoder();
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}
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ApkFile apkFile = mainChunk.getApkFile();
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if(apkFile == null){
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return getNullEntryStoreDecoder();
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}
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TableBlock tableBlock = apkFile.getTableBlock();
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if(tableBlock == null){
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return getNullEntryStoreDecoder();
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}
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AndroidManifestBlock manifestBlock = apkFile.getAndroidManifestBlock();
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if(manifestBlock!=null){
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int currentPackageId = manifestBlock.guessCurrentPackageId();
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if(currentPackageId!=0){
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return create(tableBlock, currentPackageId);
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}
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}
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return create(tableBlock);
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}
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public static Decoder create(TableBlock tableBlock){
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if(tableBlock.getFrameWorks().size()==0){
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tableBlock.addFramework(getFramework());
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}
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int currentPackageId;
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PackageBlock packageBlock = tableBlock.pickOne();
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if(packageBlock!=null){
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currentPackageId = packageBlock.getId();
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}else {
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// 0x7f most common
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currentPackageId = 0x7f;
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}
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return create(tableBlock, currentPackageId);
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}
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public static Decoder create(TableBlock tableBlock, int currentPackageId){
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if(tableBlock.getFrameWorks().size()==0){
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TableBlock framework = getFramework();
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if(framework!=null){
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PackageBlock packageBlock = framework.pickOne();
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if(packageBlock!=null && packageBlock.getId() != currentPackageId){
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tableBlock.addFramework(framework);
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}
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}
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}
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return new Decoder(tableBlock, currentPackageId);
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}
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private static TableBlock getFramework(){
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try {
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FrameworkApk frameworkApk = AndroidFrameworks.getCurrent();
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if(frameworkApk == null){
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frameworkApk = AndroidFrameworks.getLatest();
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AndroidFrameworks.setCurrent(frameworkApk);
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}
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return frameworkApk.getTableBlock();
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} catch (IOException ignored) {
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}
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return null;
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}
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public static Decoder getNullEntryStoreDecoder(){
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if(NULL_ENTRY_STORE_DECODER!=null){
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return NULL_ENTRY_STORE_DECODER;
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}
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synchronized (Decoder.class){
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TableBlock tableBlock = new TableBlock();
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Decoder decoder = new Decoder(tableBlock, 0x7f);
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NULL_ENTRY_STORE_DECODER = decoder;
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return decoder;
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}
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}
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private static Decoder NULL_ENTRY_STORE_DECODER;
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}
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@ -69,6 +69,9 @@ import java.util.regex.Pattern;
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if("@null".equals(txt)){
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return new EncodeResult(ValueType.REFERENCE, 0);
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}
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if("?null".equals(txt)){
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return new EncodeResult(ValueType.ATTRIBUTE, 0);
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}
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EncodeResult result=encodeColor(txt);
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if(result!=null){
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return result;
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@ -143,7 +146,7 @@ import java.util.regex.Pattern;
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return PATTERN_HEX_REFERENCE.matcher(txt).matches();
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}
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private static boolean isNullReference(String txt){
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if("@null".equals(txt)){
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if("@null".equals(txt)||"?null".equals(txt)){
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return true;
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}
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if("@empty".equals(txt)){
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@ -326,17 +329,6 @@ import java.util.regex.Pattern;
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}
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return decode(valueType, data);
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}
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public static String decodeIntEntry(EntryStore store, Entry entry){
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if(entry ==null){
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return null;
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}
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TableEntry<?, ?> tableEntry = entry.getTableEntry();
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if(tableEntry == null || (tableEntry instanceof ResTableMapEntry)){
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return null;
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}
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ResValue resValue =(ResValue) tableEntry.getValue();
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return decodeIntEntry(store, resValue);
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}
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public static String decodeIntEntry(EntryStore store, ResValue resValue){
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if(resValue ==null){
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return null;
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@ -406,6 +398,44 @@ import java.util.regex.Pattern;
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ValueType valueType= resValue.getValueType();
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return buildReferenceValue(store, entry, valueType, resourceId);
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}
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public static String decode(EntryStore entryStore, int currentPackageId, Value value){
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ValueType valueType = value.getValueType();
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if(valueType == ValueType.STRING){
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return value.getValueAsString();
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}
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int data = value.getData();
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if(valueType==ValueType.REFERENCE || valueType==ValueType.ATTRIBUTE){
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String currentPackageName = getPackageName(entryStore, currentPackageId);
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return buildReferenceValue(entryStore,
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valueType, currentPackageName,
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data);
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}
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return decode(valueType, data);
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}
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public static String decode(EntryStore entryStore, int currentPackageId, AttributeValue attributeValue){
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ValueType valueType = attributeValue.getValueType();
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if(valueType == ValueType.STRING){
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return attributeValue.getValueAsString();
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}
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int data = attributeValue.getData();
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if(valueType==ValueType.REFERENCE || valueType==ValueType.ATTRIBUTE){
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String currentPackageName = getPackageName(entryStore, currentPackageId);
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return buildReferenceValue(entryStore,
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valueType, currentPackageName,
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data);
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}
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if(valueType==ValueType.INT_DEC || valueType==ValueType.INT_HEX){
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String result = decodeAttribute(entryStore,
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attributeValue.getNameResourceID(),
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attributeValue.getData());
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if(result!=null){
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return result;
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}
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}
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return decode(valueType, data);
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}
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@Deprecated
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public static String decode(EntryStore entryStore, int currentPackageId, int nameResourceId, ValueType valueType, int rawVal){
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String currPackageName=getPackageName(entryStore, currentPackageId);
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String result=buildReferenceValue(entryStore, valueType, currPackageName, rawVal);
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@ -506,7 +536,7 @@ import java.util.regex.Pattern;
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atOrQues='@';
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}else if(valueType==ValueType.ATTRIBUTE){
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if(resourceId==0){
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return "@empty";
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return "?null";
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}
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atOrQues='?';
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}else {
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