PatchFieldTool.java

/*
 *
 *
 *                                  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.
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 *       "Source" form shall mean the preferred form for making modifications,
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 *       transformation or translation of a Source form, including but
 *       not limited to compiled object code, generated documentation,
 *       and conversions to other media types.
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 *       "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).
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 *       "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
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 *       "Contribution" shall mean any work of authorship, including
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 *       to that Work or Derivative Works thereof, that is intentionally
 *       submitted to Licensor for inclusion in the Work by the copyright owner
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 *       to the Licensor or its representatives, including but not limited to
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 *       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
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 *    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,
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 *       Work and such Derivative Works in Source or Object form.
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 *    3. Grant of Patent License. Subject to the terms and conditions of
 *       this License, each Contributor hereby grants to You a perpetual,
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 *       (a) You must give any other recipients of the Work or
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 *       defend, and hold each Contributor harmless for any liability
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 *       same "printed page" as the copyright notice for easier
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 *
 *    Copyright 2016 Alibaba Group
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 *    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
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package com.taobao.android;
/*
 *
 *
 *                                  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.collect.ImmutableList;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
import com.google.common.collect.Sets;
import com.taobao.android.tpatch.utils.SmaliUtils;
import org.antlr.runtime.RecognitionException;
import org.apache.commons.io.FileUtils;
import org.apache.commons.lang3.StringUtils;
import org.jf.dexlib2.AccessFlags;
import org.jf.dexlib2.DexFileFactory;
import org.jf.dexlib2.Opcodes;
import org.jf.dexlib2.builder.MutableMethodImplementation;
import org.jf.dexlib2.dexbacked.DexBackedClassDef;
import org.jf.dexlib2.iface.*;
import org.jf.dexlib2.immutable.ImmutableClassDef;
import org.jf.dexlib2.immutable.ImmutableField;
import org.jf.dexlib2.immutable.ImmutableMethod;
import org.jf.dexlib2.rewriter.*;

import javax.annotation.Nonnull;
import java.io.File;
import java.io.IOException;
import java.util.*;

/**
 * Created by lilong on 16/6/18.
 */
public class PatchFieldTool {

    private static final Set<ClassDef> classes = Sets.newConcurrentHashSet();

    public static void addField(String srcDexFile, String outDexFile, ImmutableField immutableField) throws IOException {
        addField(srcDexFile, outDexFile, null, immutableField);

    }

    public static void addField(String inFile, String outFile, DexBackedClassDef dexBackedClassDef, ImmutableField immutableField) throws IOException {

        DexFile dexFile = readDexFile(inFile);
        for (ClassDef classDef : dexFile.getClasses()) {
            if (dexBackedClassDef != null && dexBackedClassDef.getType().equals(classDef.getType())) {
                dexFile = addField(dexFile, classDef.getType(), immutableField);
            } else if (dexBackedClassDef == null) {
                dexFile = addField(dexFile, classDef.getType(), immutableField);

            }
        }
        reDexFile(dexFile);

        DexFileFactory.writeDexFile(outFile, new DexFile() {
            @Nonnull
            @Override
            public Set<? extends ClassDef> getClasses() {
                return new AbstractSet<ClassDef>() {
                    @Nonnull
                    @Override
                    public Iterator<ClassDef> iterator() {
                        return classes.iterator();
                    }

                    @Override
                    public int size() {
                        return classes.size();
                    }
                };
            }

            @Nonnull
            @Override
            public Opcodes getOpcodes() {
                return Opcodes.getDefault();
            }
        });
    }

    public static DexFile addField(DexFile dexFile, final String className, final Field field) {
        DexRewriter rewriter = new DexRewriter(new RewriterModule() {
            @Nonnull
            @Override
            public Rewriter<ClassDef> getClassDefRewriter(@Nonnull Rewriters rewriters) {
                return new ClassDefRewriter(rewriters) {
                    @Nonnull
                    @Override
                    public ClassDef rewrite(@Nonnull ClassDef classDef) {
                        if (classDef.getType().equals(className)) {
                            return new RewrittenClassDef(classDef) {
                                @Nonnull
                                @Override
                                public Iterable<? extends Field> getInstanceFields() {
                                    if ((field.getAccessFlags() & AccessFlags.STATIC.getValue()) == 0) {
                                        return Iterables.concat(super.getInstanceFields(), ImmutableList.of(field));
                                    }
                                    return super.getInstanceFields();
                                }

                                @Nonnull
                                @Override
                                public Iterable<? extends Field> getStaticFields() {
                                    if ((field.getAccessFlags() & AccessFlags.STATIC.getValue()) != 0) {
                                        return Iterables.concat(super.getStaticFields(), ImmutableList.of(field));
                                    }
                                    return super.getStaticFields();
                                }
                            };
                        }
                        return super.rewrite(classDef);
                    }
                };
            }
        });

        return rewriter.rewriteDexFile(dexFile);
    }

    private static DexFile readDexFile(String fileName) throws IOException {
        File srcFile = new File(fileName);
        return DexFileFactory.loadDexFile(srcFile, Opcodes.getDefault());
    }

    private static void reDexFile(@Nonnull DexFile dexFile) {
        for (ClassDef classDef : dexFile.getClasses()) {
            classes.add(reDexClass(classDef));
        }
    }

    private static ClassDef reDexClass(@Nonnull ClassDef classDef) {
        return new ImmutableClassDef(classDef.getType(),
                classDef.getAccessFlags(),
                classDef.getSuperclass(),
                classDef.getInterfaces(),
                classDef.getSourceFile(),
                classDef.getAnnotations(),
                classDef.getFields(),
                reDexMethods(classDef));
    }

    private static List<Method> reDexMethods(@Nonnull ClassDef classDef) {
        List<Method> taintedMethods = Lists.newArrayList();
        for (Method method : classDef.getMethods()) {
            MethodImplementation implementation = method.getImplementation();
            MutableMethodImplementation mutableImplementation = new MutableMethodImplementation(implementation);
            taintedMethods.add(new ImmutableMethod(
                    method.getDefiningClass(),
                    method.getName(),
                    method.getParameters(),
                    method.getReturnType(),
                    method.getAccessFlags(),
                    method.getAnnotations(),
                    mutableImplementation));
        }
        return taintedMethods;
    }

    /**
     * relace const string in dexFile
     *
     * @param dexFile
     * @param outDexFile
     * @param orgFieldValue
     * @param newFieldValue
     * @return
     */
    public static boolean modifyFieldValue(File dexFile, File outDexFile, String orgFieldValue,
                                           String newFieldValue) throws IOException, RecognitionException {
        File smaliFolder = new File(outDexFile.getParentFile(), "smali");
        if (smaliFolder.exists()) {
            FileUtils.deleteDirectory(smaliFolder);
        }
        smaliFolder.mkdirs();
        boolean disassembled = SmaliUtils.disassembleDexFile(dexFile, smaliFolder);
        if (disassembled) {
            Collection<File> smaliFiles = FileUtils.listFiles(smaliFolder, new String[]{"smali"}, true);
            for (File smaliFile : smaliFiles) {
                List<String> lines = FileUtils.readLines(smaliFile);
                for (int index = 0; index < lines.size(); index++) {
                    String line = lines.get(index);
                    String newLine = StringUtils.replace(line, "\"" + orgFieldValue + "\"", "\"" + newFieldValue + "\"");
                    lines.set(index, newLine);
                }
                FileUtils.writeLines(smaliFile, lines);
            }

            //转换为dex文件
            boolean assembled = SmaliUtils.assembleSmaliFile(smaliFolder, outDexFile);
            if (assembled) {
                FileUtils.deleteDirectory(smaliFolder);
                return true;
            }
        }
        return false;
    }


}