/*
*
*
* Apache License
* Version 2.0, January 2004
* http://www.apache.org/licenses/
*
* TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
*
* 1. Definitions.
*
* "License" shall mean the terms and conditions for use, reproduction,
* and distribution as defined by Sections 1 through 9 of this document.
*
* "Licensor" shall mean the copyright owner or entity authorized by
* the copyright owner that is granting the License.
*
* "Legal Entity" shall mean the union of the acting entity and all
* other entities that control, are controlled by, or are under common
* control with that entity. For the purposes of this definition,
* "control" means (i) the power, direct or indirect, to cause the
* direction or management of such entity, whether by contract or
* otherwise, or (ii) ownership of fifty percent (50%) or more of the
* outstanding shares, or (iii) beneficial ownership of such entity.
*
* "You" (or "Your") shall mean an individual or Legal Entity
* exercising permissions granted by this License.
*
* "Source" form shall mean the preferred form for making modifications,
* including but not limited to software source code, documentation
* source, and configuration files.
*
* "Object" form shall mean any form resulting from mechanical
* transformation or translation of a Source form, including but
* not limited to compiled object code, generated documentation,
* and conversions to other media types.
*
* "Work" shall mean the work of authorship, whether in Source or
* Object form, made available under the License, as indicated by a
* copyright notice that is included in or attached to the work
* (an example is provided in the Appendix below).
*
* "Derivative Works" shall mean any work, whether in Source or Object
* form, that is based on (or derived from) the Work and for which the
* editorial revisions, annotations, elaborations, or other modifications
* represent, as a whole, an original work of authorship. For the purposes
* of this License, Derivative Works shall not include works that remain
* separable from, or merely link (or bind by name) to the interfaces of,
* the Work and Derivative Works thereof.
*
* "Contribution" shall mean any work of authorship, including
* the original version of the Work and any modifications or additions
* to that Work or Derivative Works thereof, that is intentionally
* submitted to Licensor for inclusion in the Work by the copyright owner
* or by an individual or Legal Entity authorized to submit on behalf of
* the copyright owner. For the purposes of this definition, "submitted"
* means any form of electronic, verbal, or written communication sent
* to the Licensor or its representatives, including but not limited to
* communication on electronic mailing lists, source code control systems,
* and issue tracking systems that are managed by, or on behalf of, the
* Licensor for the purpose of discussing and improving the Work, but
* excluding communication that is conspicuously marked or otherwise
* designated in writing by the copyright owner as "Not a Contribution."
*
* "Contributor" shall mean Licensor and any individual or Legal Entity
* on behalf of whom a Contribution has been received by Licensor and
* subsequently incorporated within the Work.
*
* 2. Grant of Copyright License. Subject to the terms and conditions of
* this License, each Contributor hereby grants to You a perpetual,
* worldwide, non-exclusive, no-charge, royalty-free, irrevocable
* copyright license to reproduce, prepare Derivative Works of,
* publicly display, publicly perform, sublicense, and distribute the
* Work and such Derivative Works in Source or Object form.
*
* 3. Grant of Patent License. Subject to the terms and conditions of
* this License, each Contributor hereby grants to You a perpetual,
* worldwide, non-exclusive, no-charge, royalty-free, irrevocable
* (except as stated in this section) patent license to make, have made,
* use, offer to sell, sell, import, and otherwise transfer the Work,
* where such license applies only to those patent claims licensable
* by such Contributor that are necessarily infringed by their
* Contribution(s) alone or by combination of their Contribution(s)
* with the Work to which such Contribution(s) was submitted. If You
* institute patent litigation against any entity (including a
* cross-claim or counterclaim in a lawsuit) alleging that the Work
* or a Contribution incorporated within the Work constitutes direct
* or contributory patent infringement, then any patent licenses
* granted to You under this License for that Work shall terminate
* as of the date such litigation is filed.
*
* 4. Redistribution. You may reproduce and distribute copies of the
* Work or Derivative Works thereof in any medium, with or without
* modifications, and in Source or Object form, provided that You
* meet the following conditions:
*
* (a) You must give any other recipients of the Work or
* Derivative Works a copy of this License; and
*
* (b) You must cause any modified files to carry prominent notices
* stating that You changed the files; and
*
* (c) You must retain, in the Source form of any Derivative Works
* that You distribute, all copyright, patent, trademark, and
* attribution notices from the Source form of the Work,
* excluding those notices that do not pertain to any part of
* the Derivative Works; and
*
* (d) If the Work includes a "NOTICE" text file as part of its
* distribution, then any Derivative Works that You distribute must
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* pertain to any part of the Derivative Works, in at least one
* of the following places: within a NOTICE text file distributed
* as part of the Derivative Works; within the Source form or
* documentation, if provided along with the Derivative Works; or,
* within a display generated by the Derivative Works, if and
* wherever such third-party notices normally appear. The contents
* of the NOTICE file are for informational purposes only and
* do not modify the License. You may add Your own attribution
* notices within Derivative Works that You distribute, alongside
* or as an addendum to the NOTICE text from the Work, provided
* that such additional attribution notices cannot be construed
* as modifying the License.
*
* You may add Your own copyright statement to Your modifications and
* may provide additional or different license terms and conditions
* for use, reproduction, or distribution of Your modifications, or
* for any such Derivative Works as a whole, provided Your use,
* reproduction, and distribution of the Work otherwise complies with
* the conditions stated in this License.
*
* 5. Submission of Contributions. Unless You explicitly state otherwise,
* any Contribution intentionally submitted for inclusion in the Work
* by You to the Licensor shall be under the terms and conditions of
* this License, without any additional terms or conditions.
* Notwithstanding the above, nothing herein shall supersede or modify
* the terms of any separate license agreement you may have executed
* with Licensor regarding such Contributions.
*
* 6. Trademarks. This License does not grant permission to use the trade
* names, trademarks, service marks, or product names of the Licensor,
* except as required for reasonable and customary use in describing the
* origin of the Work and reproducing the content of the NOTICE file.
*
* 7. Disclaimer of Warranty. Unless required by applicable law or
* agreed to in writing, Licensor provides the Work (and each
* Contributor provides its Contributions) on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied, including, without limitation, any warranties or conditions
* of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
* PARTICULAR PURPOSE. You are solely responsible for determining the
* appropriateness of using or redistributing the Work and assume any
* risks associated with Your exercise of permissions under this License.
*
* 8. Limitation of Liability. In no event and under no legal theory,
* whether in tort (including negligence), contract, or otherwise,
* unless required by applicable law (such as deliberate and grossly
* negligent acts) or agreed to in writing, shall any Contributor be
* liable to You for damages, including any direct, indirect, special,
* incidental, or consequential damages of any character arising as a
* result of this License or out of the use or inability to use the
* Work (including but not limited to damages for loss of goodwill,
* work stoppage, computer failure or malfunction, or any and all
* other commercial damages or losses), even if such Contributor
* has been advised of the possibility of such damages.
*
* 9. Accepting Warranty or Additional Liability. While redistributing
* the Work or Derivative Works thereof, You may choose to offer,
* and charge a fee for, acceptance of support, warranty, indemnity,
* or other liability obligations and/or rights consistent with this
* License. However, in accepting such obligations, You may act only
* on Your own behalf and on Your sole responsibility, not on behalf
* of any other Contributor, and only if You agree to indemnify,
* defend, and hold each Contributor harmless for any liability
* incurred by, or claims asserted against, such Contributor by reason
* of your accepting any such warranty or additional liability.
*
* END OF TERMS AND CONDITIONS
*
* APPENDIX: How to apply the Apache License to your work.
*
* To apply the Apache License to your work, attach the following
* boilerplate notice, with the fields enclosed by brackets "[]"
* replaced with your own identifying information. (Don't include
* the brackets!) The text should be enclosed in the appropriate
* comment syntax for the file format. We also recommend that a
* file or class name and description of purpose be included on the
* same "printed page" as the copyright notice for easier
* identification within third-party archives.
*
* Copyright 2016 Alibaba Group
*
* Licensed 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 com.taobao.android.differ.dex;
/*
*
*
* Apache License
* Version 2.0, January 2004
* http://www.apache.org/licenses/
*
* TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
*
* 1. Definitions.
*
* "License" shall mean the terms and conditions for use, reproduction,
* and distribution as defined by Sections 1 through 9 of this document.
*
* "Licensor" shall mean the copyright owner or entity authorized by
* the copyright owner that is granting the License.
*
* "Legal Entity" shall mean the union of the acting entity and all
* other entities that control, are controlled by, or are under common
* control with that entity. For the purposes of this definition,
* "control" means (i) the power, direct or indirect, to cause the
* direction or management of such entity, whether by contract or
* otherwise, or (ii) ownership of fifty percent (50%) or more of the
* outstanding shares, or (iii) beneficial ownership of such entity.
*
* "You" (or "Your") shall mean an individual or Legal Entity
* exercising permissions granted by this License.
*
* "Source" form shall mean the preferred form for making modifications,
* including but not limited to software source code, documentation
* source, and configuration files.
*
* "Object" form shall mean any form resulting from mechanical
* transformation or translation of a Source form, including but
* not limited to compiled object code, generated documentation,
* and conversions to other media types.
*
* "Work" shall mean the work of authorship, whether in Source or
* Object form, made available under the License, as indicated by a
* copyright notice that is included in or attached to the work
* (an example is provided in the Appendix below).
*
* "Derivative Works" shall mean any work, whether in Source or Object
* form, that is based on (or derived from) the Work and for which the
* editorial revisions, annotations, elaborations, or other modifications
* represent, as a whole, an original work of authorship. For the purposes
* of this License, Derivative Works shall not include works that remain
* separable from, or merely link (or bind by name) to the interfaces of,
* the Work and Derivative Works thereof.
*
* "Contribution" shall mean any work of authorship, including
* the original version of the Work and any modifications or additions
* to that Work or Derivative Works thereof, that is intentionally
* submitted to Licensor for inclusion in the Work by the copyright owner
* or by an individual or Legal Entity authorized to submit on behalf of
* the copyright owner. For the purposes of this definition, "submitted"
* means any form of electronic, verbal, or written communication sent
* to the Licensor or its representatives, including but not limited to
* communication on electronic mailing lists, source code control systems,
* and issue tracking systems that are managed by, or on behalf of, the
* Licensor for the purpose of discussing and improving the Work, but
* excluding communication that is conspicuously marked or otherwise
* designated in writing by the copyright owner as "Not a Contribution."
*
* "Contributor" shall mean Licensor and any individual or Legal Entity
* on behalf of whom a Contribution has been received by Licensor and
* subsequently incorporated within the Work.
*
* 2. Grant of Copyright License. Subject to the terms and conditions of
* this License, each Contributor hereby grants to You a perpetual,
* worldwide, non-exclusive, no-charge, royalty-free, irrevocable
* copyright license to reproduce, prepare Derivative Works of,
* publicly display, publicly perform, sublicense, and distribute the
* Work and such Derivative Works in Source or Object form.
*
* 3. Grant of Patent License. Subject to the terms and conditions of
* this License, each Contributor hereby grants to You a perpetual,
* worldwide, non-exclusive, no-charge, royalty-free, irrevocable
* (except as stated in this section) patent license to make, have made,
* use, offer to sell, sell, import, and otherwise transfer the Work,
* where such license applies only to those patent claims licensable
* by such Contributor that are necessarily infringed by their
* Contribution(s) alone or by combination of their Contribution(s)
* with the Work to which such Contribution(s) was submitted. If You
* institute patent litigation against any entity (including a
* cross-claim or counterclaim in a lawsuit) alleging that the Work
* or a Contribution incorporated within the Work constitutes direct
* or contributory patent infringement, then any patent licenses
* granted to You under this License for that Work shall terminate
* as of the date such litigation is filed.
*
* 4. Redistribution. You may reproduce and distribute copies of the
* Work or Derivative Works thereof in any medium, with or without
* modifications, and in Source or Object form, provided that You
* meet the following conditions:
*
* (a) You must give any other recipients of the Work or
* Derivative Works a copy of this License; and
*
* (b) You must cause any modified files to carry prominent notices
* stating that You changed the files; and
*
* (c) You must retain, in the Source form of any Derivative Works
* that You distribute, all copyright, patent, trademark, and
* attribution notices from the Source form of the Work,
* excluding those notices that do not pertain to any part of
* the Derivative Works; and
*
* (d) If the Work includes a "NOTICE" text file as part of its
* distribution, then any Derivative Works that You distribute must
* include a readable copy of the attribution notices contained
* within such NOTICE file, excluding those notices that do not
* pertain to any part of the Derivative Works, in at least one
* of the following places: within a NOTICE text file distributed
* as part of the Derivative Works; within the Source form or
* documentation, if provided along with the Derivative Works; or,
* within a display generated by the Derivative Works, if and
* wherever such third-party notices normally appear. The contents
* of the NOTICE file are for informational purposes only and
* do not modify the License. You may add Your own attribution
* notices within Derivative Works that You distribute, alongside
* or as an addendum to the NOTICE text from the Work, provided
* that such additional attribution notices cannot be construed
* as modifying the License.
*
* You may add Your own copyright statement to Your modifications and
* may provide additional or different license terms and conditions
* for use, reproduction, or distribution of Your modifications, or
* for any such Derivative Works as a whole, provided Your use,
* reproduction, and distribution of the Work otherwise complies with
* the conditions stated in this License.
*
* 5. Submission of Contributions. Unless You explicitly state otherwise,
* any Contribution intentionally submitted for inclusion in the Work
* by You to the Licensor shall be under the terms and conditions of
* this License, without any additional terms or conditions.
* Notwithstanding the above, nothing herein shall supersede or modify
* the terms of any separate license agreement you may have executed
* with Licensor regarding such Contributions.
*
* 6. Trademarks. This License does not grant permission to use the trade
* names, trademarks, service marks, or product names of the Licensor,
* except as required for reasonable and customary use in describing the
* origin of the Work and reproducing the content of the NOTICE file.
*
* 7. Disclaimer of Warranty. Unless required by applicable law or
* agreed to in writing, Licensor provides the Work (and each
* Contributor provides its Contributions) on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied, including, without limitation, any warranties or conditions
* of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
* PARTICULAR PURPOSE. You are solely responsible for determining the
* appropriateness of using or redistributing the Work and assume any
* risks associated with Your exercise of permissions under this License.
*
* 8. Limitation of Liability. In no event and under no legal theory,
* whether in tort (including negligence), contract, or otherwise,
* unless required by applicable law (such as deliberate and grossly
* negligent acts) or agreed to in writing, shall any Contributor be
* liable to You for damages, including any direct, indirect, special,
* incidental, or consequential damages of any character arising as a
* result of this License or out of the use or inability to use the
* Work (including but not limited to damages for loss of goodwill,
* work stoppage, computer failure or malfunction, or any and all
* other commercial damages or losses), even if such Contributor
* has been advised of the possibility of such damages.
*
* 9. Accepting Warranty or Additional Liability. While redistributing
* the Work or Derivative Works thereof, You may choose to offer,
* and charge a fee for, acceptance of support, warranty, indemnity,
* or other liability obligations and/or rights consistent with this
* License. However, in accepting such obligations, You may act only
* on Your own behalf and on Your sole responsibility, not on behalf
* of any other Contributor, and only if You agree to indemnify,
* defend, and hold each Contributor harmless for any liability
* incurred by, or claims asserted against, such Contributor by reason
* of your accepting any such warranty or additional liability.
*
* END OF TERMS AND CONDITIONS
*
* APPENDIX: How to apply the Apache License to your work.
*
* To apply the Apache License to your work, attach the following
* boilerplate notice, with the fields enclosed by brackets "[]"
* replaced with your own identifying information. (Don't include
* the brackets!) The text should be enclosed in the appropriate
* comment syntax for the file format. We also recommend that a
* file or class name and description of purpose be included on the
* same "printed page" as the copyright notice for easier
* identification within third-party archives.
*
* Copyright 2016 Alibaba Group
*
* Licensed 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.
*
*
*/
import com.google.common.base.Objects;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Sets;
import com.taobao.android.filter.DexDiffFilter;
import com.taobao.android.filter.Filter;
import com.taobao.android.object.*;
import com.taobao.android.utils.DexCompareUtils;
import org.apache.commons.lang3.StringUtils;
import org.jf.dexlib2.DexFileFactory;
import org.jf.dexlib2.dexbacked.*;
import org.jf.dexlib2.iface.value.EncodedValue;
import org.jf.dexlib2.util.ReferenceUtil;
import javax.annotation.Nullable;
import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Dex文件差异性获取的类
* Created by shenghua.nish on 2016-03-09 下午2:10.
*/
public class DexDiffer {
private List<File> baseDexFiles = Lists.newArrayList();
private List<File> newDexFiles = Lists.newArrayList();
private int apiLevel;
private Map<String, org.jf.dexlib2.iface.ClassDef>lastBundleClassMap = new HashMap<String, org.jf.dexlib2.iface.ClassDef>();
private DexDiffInfo dexDiffInfo = new DexDiffInfo();
//dex过滤器
private DexDiffFilter dexDiffFilter;
//类白名单过滤器
private Filter filter;
private Map<String, DexBackedClassDef> baseClassDefMap = new HashMap<String, DexBackedClassDef>();
public DexDiffer(List<File> baseDexFiles, List<File> newDexFiles, int apiLevel) {
this.baseDexFiles = baseDexFiles;
this.newDexFiles = newDexFiles;
this.apiLevel = apiLevel;
}
public DexDiffer(File baseDex, File newDex, int apiLevel) {
baseDexFiles.add(baseDex);
newDexFiles.add(newDex);
this.apiLevel = apiLevel;
}
public void setDexDiffFilter(DexDiffFilter dexDiffFilter) {
this.dexDiffFilter = dexDiffFilter;
}
public void setLastBundleClassMap(Map<String, org.jf.dexlib2.iface.ClassDef> map){
this.lastBundleClassMap = map;
}
public void createFilter(String filterPath) {
this.filter = new Filter(filterPath);
}
/**
* 获取二个dex文件的diff差异
*
* @return
*/
public DexDiffInfo doDiff() throws IOException, PatchException {
scanBaseDexFile();
Set<DexBackedClassDef> newDexClassDefs = Sets.newHashSet();
for (File newDexFile : newDexFiles) {
DexBackedDexFile newBackedDexFile = DexFileFactory.loadDexFile(newDexFile, apiLevel, true);
newDexClassDefs.addAll(newBackedDexFile.getClasses());
dexDiffInfo.setNewClasses(newDexClassDefs);
}
for (DexBackedClassDef newClassDef : newDexClassDefs) {
if (filter != null) {
if (filter.isFiltered(newClassDef.getType())) {
System.out.println("filter class:"+newClassDef.getType());
continue;
}
}
String className = getDalvikClassName(newClassDef.getType());
DexBackedClassDef baseClassDef = baseClassDefMap.get(className);
if (lastBundleClassMap.containsKey(newClassDef.getType())){
System.out.println("overide class:"+className);
ClassDiffInfo classDiffInfo = new ClassDiffInfo();
classDiffInfo.setType(DiffType.OVERRIDE);
classDiffInfo.setClassDef(baseClassDef);
dexDiffInfo.getClassDiffInfoMap().put(className,classDiffInfo);
}
ClassDiffInfo classDiffInfo = compareClassDef(baseClassDef, newClassDef);
if (DiffType.MODIFY.equals(classDiffInfo.getType()) || DiffType.ADD.equals(classDiffInfo.getType())) {
dexDiffInfo.getClassDiffInfoMap().put(className, classDiffInfo);
}
}
return dexDiffInfo;
}
public void dexFilter() throws PatchException {
if (dexDiffFilter != null) {
dexDiffFilter.filterDex();
}
}
/**
* 扫描基础的dex，得到dex的信息
*/
private void scanBaseDexFile() throws IOException {
for (File baseDexFile : baseDexFiles) {
DexBackedDexFile baseBackedDexFile = DexFileFactory.loadDexFile(baseDexFile, apiLevel, true);
final Set<? extends DexBackedClassDef> baseClassDefs = baseBackedDexFile.getClasses();
dexDiffInfo.setOldClasses(baseClassDefs);
for (DexBackedClassDef baseClassDef : baseClassDefs) {
String className = getDalvikClassName(baseClassDef.getType());
baseClassDefMap.put(className, baseClassDef);
}
}
}
/**
* 比较2个类的信息
*
* @param baseClassDef
* @param newClassDef
* @return
*/
private ClassDiffInfo compareClassDef(DexBackedClassDef baseClassDef, DexBackedClassDef newClassDef) throws PatchException {
ClassDiffInfo classDiffInfo = new ClassDiffInfo();
String className = null;
if (null == baseClassDef && null != newClassDef) {
className = getDalvikClassName(newClassDef.getType());
classDiffInfo.setName(className);
classDiffInfo.setClassDef(newClassDef);
classDiffInfo.setType(DiffType.ADD);
} else if (null != baseClassDef && null == newClassDef) {
className = getDalvikClassName(baseClassDef.getType());
classDiffInfo.setName(className);
classDiffInfo.setClassDef(baseClassDef);
classDiffInfo.setType(DiffType.REMOVE);
} else {// 比较是否有变更
className = getDalvikClassName(baseClassDef.getType());
classDiffInfo.setName(className);
classDiffInfo.setClassDef(newClassDef);
boolean classDefModify = compareClassDef_(baseClassDef, newClassDef);
boolean methodDefModify = false;
boolean fieldDefModify = false;
if (classDefModify) {
classDiffInfo.setType(DiffType.MODIFY);
// 1. 比较类里面的方法
compareMethods(baseClassDef, newClassDef, classDiffInfo);
// 2. 比较类里面的字段
compareFields(baseClassDef, newClassDef, classDiffInfo);
} else {
// 1. 比较类里面的方法
methodDefModify = compareMethods(baseClassDef, newClassDef, classDiffInfo);
// 2. 比较类里面的字段
fieldDefModify = compareFields(baseClassDef, newClassDef, classDiffInfo);
if (methodDefModify || fieldDefModify) {
classDiffInfo.setType(DiffType.MODIFY);
} else {
classDiffInfo.setType(DiffType.NONE);
}
}
}
return classDiffInfo;
}
/**
* 得到这个类的字符串化的定义
*
* @param baseClassDef
* @param newClassDef
* @return 2个类的定义是否变更
*/
private boolean compareClassDef_(DexBackedClassDef baseClassDef, DexBackedClassDef newClassDef) {
if (null == baseClassDef || null == newClassDef) {
return false;
}
if (baseClassDef.equals(newClassDef)) {
// 判断access flag是否一致
if (baseClassDef.getAccessFlags() != newClassDef.getAccessFlags()) {
return true;
}
// 判断supper class是否一致
if (!StringUtils.equals(baseClassDef.getSuperclass(), newClassDef.getSuperclass())) {
return true;
}
// 判断实现的接口是否一致
if (!equalsImpl(baseClassDef.getInterfaces(), newClassDef.getInterfaces())) {
return true;
}
// 判断注解是否一致
if (!equalsImpl(baseClassDef.getAnnotations(), newClassDef.getAnnotations())) {
return true;
}
// 不考虑sourceFile
return false;
}
return true;
}
private boolean equalsImpl(Set<?> s, @Nullable Object object) {
if (s == object) {
return true;
} else if (object instanceof Set) {
Set o = (Set) object;
try {
return s.size() == o.size() && s.containsAll(o);
} catch (NullPointerException var4) {
return false;
} catch (ClassCastException var5) {
return false;
}
} else {
return false;
}
}
/**
* 比较二个dex中的类的方法差异性
* FIXME: 所有的diff操作都没有考虑accssFlag变化的情况
*
* @param baseClassDef
* @param newClassDef
* @param classDiffInfo
*/
private boolean compareMethods(DexBackedClassDef baseClassDef, DexBackedClassDef newClassDef,
ClassDiffInfo classDiffInfo) throws PatchException {
Map<String, DexBackedMethod> baseMethodDefMaps = Maps.newHashMap();
for (DexBackedMethod dexBackedMethod : baseClassDef.getMethods()) {
String baseMethodDesc = ReferenceUtil.getMethodDescriptor(dexBackedMethod);
baseMethodDefMaps.put(baseMethodDesc, dexBackedMethod);
}
for (DexBackedMethod newMethod : newClassDef.getMethods()) {
MethodDiffInfo methodDiffInfo = new MethodDiffInfo();
String newethodDesc = ReferenceUtil.getMethodDescriptor(newMethod);
methodDiffInfo.setBackedMethod(newMethod);
DexBackedMethod baseMethod = baseMethodDefMaps.get(newethodDesc);
if (null == baseMethod) {
methodDiffInfo.setType(DiffType.ADD);
classDiffInfo.getModifyMethods().add(methodDiffInfo);
continue;
}
// TODO: 首先判断方法的声明，包括access flag等是否一致
// 如果方法二边都存在,1. 判断实现
DexBackedMethodImplementation newMethodImplementation = newMethod.getImplementation();
DexBackedMethodImplementation baseMethodImplementation = baseMethod.getImplementation();
// 判断2个方法是否一致
if (!DexCompareUtils.compareMethod(newMethodImplementation, baseMethodImplementation)) {
methodDiffInfo.setType(DiffType.MODIFY);
classDiffInfo.getModifyMethods().add(methodDiffInfo);
}
baseMethodDefMaps.remove(newethodDesc);
}
// 如果方法已经移除
if (baseMethodDefMaps.size() > 0) {
for (Map.Entry<String, DexBackedMethod> entry : baseMethodDefMaps.entrySet()) {
MethodDiffInfo methodDiffInfo = new MethodDiffInfo();
methodDiffInfo.setType(DiffType.REMOVE);
methodDiffInfo.setBackedMethod(entry.getValue());
classDiffInfo.getModifyMethods().add(methodDiffInfo);
}
}
if (classDiffInfo.getModifyMethods().size() > 0) {
return true;
}
return false;
}
/**
* 比较二个dex中的类的字段差异性
*
* @param baseClassDef
* @param newClassDef
* @param classDiffInfo
*/
private boolean compareFields(DexBackedClassDef baseClassDef, DexBackedClassDef newClassDef,
ClassDiffInfo classDiffInfo) throws PatchException {
Map<String, DexBackedField> baseFieldMaps = Maps.newHashMap();
for (DexBackedField backedField : baseClassDef.getFields()) {
baseFieldMaps.put(ReferenceUtil.getFieldDescriptor(backedField), backedField);
}
for (DexBackedField newField : newClassDef.getFields()) {
FieldDiffInfo fieldDiffInfo = new FieldDiffInfo();
fieldDiffInfo.setBackedField(newField);
String fieldDesc = ReferenceUtil.getFieldDescriptor(newField);
DexBackedField baseField = baseFieldMaps.get(fieldDesc);
if (null == baseField) {
fieldDiffInfo.setType(DiffType.ADD);
classDiffInfo.getModifyFields().add(fieldDiffInfo);
continue;
}
// 首先判断字段的声明，包括access flag等是否一致
// 判断初始化值
EncodedValue baseInitaValue = baseField.getInitialValue();
EncodedValue newInitaValue = newField.getInitialValue();
if (!Objects.equal(baseInitaValue, newInitaValue)) {
fieldDiffInfo.setType(DiffType.MODIFY);
classDiffInfo.getModifyFields().add(fieldDiffInfo);
baseFieldMaps.remove(fieldDesc);
continue;
}
//注解
Set<? extends DexBackedAnnotation> backedAnnotations = baseField.getAnnotations();
if (!equalsImpl(backedAnnotations,newField.getAnnotations())){
fieldDiffInfo.setType(DiffType.MODIFY);
classDiffInfo.getModifyFields().add(fieldDiffInfo);
baseFieldMaps.remove(fieldDesc);
continue;
}
//type
if (!baseField.getType().equals(newField.getType())){
fieldDiffInfo.setType(DiffType.MODIFY);
classDiffInfo.getModifyFields().add(fieldDiffInfo);
baseFieldMaps.remove(fieldDesc);
continue;
}
//accessflag
if (baseField.getAccessFlags() != newField.getAccessFlags()){
fieldDiffInfo.setType(DiffType.MODIFY);
classDiffInfo.getModifyFields().add(fieldDiffInfo);
baseFieldMaps.remove(fieldDesc);
continue;
}
baseFieldMaps.remove(fieldDesc);
}
// 如果字段已经移除
if (baseFieldMaps.size() > 0) {
for (Map.Entry<String, DexBackedField> entry : baseFieldMaps.entrySet()) {
FieldDiffInfo fieldDiffInfo = new FieldDiffInfo();
fieldDiffInfo.setBackedField(entry.getValue());
fieldDiffInfo.setType(DiffType.REMOVE);
classDiffInfo.getModifyFields().add(fieldDiffInfo);
}
}
if (classDiffInfo.getModifyFields().size() > 0) {
return true;
}
return false;
}
/**
* 获取davik中的class名字
*
* @param className
* @return
*/
public static String getDalvikClassName(String className) {
if (className.charAt(0) != 'L' || className.charAt(className.length() - 1) != ';') {
throw new RuntimeException("Not a valid dalvik class name");
}
return StringUtils.replace(className.substring(1, className.length() - 1), "/", ".");
}
public static void main(String[] args) throws IOException {
File dexFile = new File("/Users/shenghua/Downloads/taobao-android.apk/classes.dex");
DexBackedDexFile baseBackedDexFile = DexFileFactory.loadDexFile(dexFile, 19, true);
for (DexBackedClassDef classDef : baseBackedDexFile.getClasses()) {
System.out.println(classDef.getType());
}
}
}