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refactor: optimize APK processing and cleanup redundant code 

Refactored NPatch.java to use NestedZip, optimized dex file counting, and removed unused permission replacement methods. Improved logging and error reporting during the patch process.
This commit is contained in:
NkBe 2026-02-10 20:02:32 +08:00
parent c1480fa121
commit 7cf0f3a229
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GPG Key ID: 9FACEE0DB6DF678E
1 changed files with 33 additions and 79 deletions
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112
patch/src/main/java/org/lsposed/patch/NPatch.java
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@ -9,6 +9,7 @@ import static org.lsposed.npatch.share.Constants.PROXY_APP_COMPONENT_FACTORY;
import com.android.tools.build.apkzlib.sign.SigningExtension;
import com.android.tools.build.apkzlib.sign.SigningOptions;
import com.android.tools.build.apkzlib.zip.AlignmentRules;
import com.android.tools.build.apkzlib.zip.NestedZip;
import com.android.tools.build.apkzlib.zip.StoredEntry;
import com.android.tools.build.apkzlib.zip.ZFile;
import com.android.tools.build.apkzlib.zip.ZFileOptions;
@ -18,11 +19,8 @@ import com.beust.jcommander.ParameterException;
import com.google.gson.Gson;
import com.wind.meditor.core.ManifestEditor;
import com.wind.meditor.property.AttributeItem;
import com.wind.meditor.property.AttributeMapper;
import com.wind.meditor.property.ModificationProperty;
import com.wind.meditor.property.PermissionMapper;
import com.wind.meditor.utils.NodeValue;
import com.wind.meditor.utils.PermissionType;
import org.apache.commons.io.FilenameUtils;
import org.lsposed.npatch.share.Constants;
@ -47,7 +45,6 @@ import java.util.Arrays;
import java.util.Base64;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.List;
import java.util.Locale;
import java.util.Objects;
@ -86,7 +83,7 @@ public class NPatch {
@Parameter(names = {"-l", "--sigbypasslv"}, description = "Signature bypass level. 0 (disable), 1 (pm), 2 (pm+openat). default 0")
private int sigbypassLevel = 0;
@Parameter(names = {"--injectdex"}, description = "Inject directly the loder dex file into the original application package")
@Parameter(names = {"--injectdex"}, description = "Inject directly the loader dex file into the original application package")
private boolean injectDex = false;
@Parameter(names = {"--provider"}, description = "Inject Provider to manager data files")
@ -127,7 +124,6 @@ public class NPatch {
));
private final JCommander jCommander;
private final Logger logger;
public NPatch(Logger logger, String... args) {
@ -171,6 +167,7 @@ public class NPatch {
String apkFileName = srcApkFile.getName();
var outputDir = new File(outputPath);
//noinspection ResultOfMethodCallIgnored
outputDir.mkdirs();
File outputFile = new File(outputDir, String.format(
@ -180,7 +177,7 @@ public class NPatch {
).getAbsoluteFile();
if (outputFile.exists() && !forceOverwrite)
throw new PatchError(outputPath + " exists. Use --force to overwrite");
throw new PatchError(outputFile.getAbsolutePath() + " exists. Use --force to overwrite");
logger.i("Processing " + srcApkFile + " -> " + outputFile);
patch(srcApkFile, outputFile);
@ -191,14 +188,15 @@ public class NPatch {
if (!srcApkFile.exists())
throw new PatchError("The source apk file does not exit. Please provide a correct path.");
//noinspection ResultOfMethodCallIgnored
outputFile.delete();
logger.d("apk path: " + srcApkFile);
logger.i("Parsing original apk...");
try (var dstZFile = ZFile.openReadWrite(outputFile, Z_FILE_OPTIONS);
var srcZFile = ZFile.openReadOnly(srcApkFile)) {
try (ZFile dstZFile = ZFile.openReadWrite(outputFile, Z_FILE_OPTIONS);
NestedZip srcZFile = dstZFile.addNestedZip((ignore) -> ORIGINAL_APK_ASSET_PATH, srcApkFile, false)) {
// sign apk
try {
@ -259,10 +257,6 @@ public class NPatch {
newPackage = pair.packageName;
}
logger.i("permissions: " + pair.permissions);
logger.i("use-permissions: " +pair.use_permissions);
logger.i("provider.authorities: " + pair.authorities);
logger.i("permissions size: " + (pair.permissions == null ? 0 : pair.permissions.size()));
logger.i("use-permissions size: " + (pair.use_permissions == null ? 0 : pair.use_permissions.size()));
logger.i("authorities size: " + (pair.authorities == null ? 0 : pair.authorities.size()));
@ -286,7 +280,7 @@ public class NPatch {
final var config = new PatchConfig(useManager, debuggableFlag, overrideVersionCode, sigbypassLevel, originalSignature, appComponentFactory, isInjectProvider, outputLog, newPackage);
final var configBytes = new Gson().toJson(config).getBytes(StandardCharsets.UTF_8);
final var metadata = Base64.getEncoder().encodeToString(configBytes);
try (var is = new ByteArrayInputStream(modifyManifestFile(manifestEntry.open(), metadata, minSdkVersion, pair.packageName, newPackage, pair.permissions, pair.use_permissions, pair.authorities))) {
try (var is = new ByteArrayInputStream(modifyManifestFile(manifestEntry.open(), metadata, minSdkVersion, pair.packageName, newPackage))) {
dstZFile.add(ANDROID_MANIFEST_XML, is);
} catch (Throwable e) {
throw new PatchError("Error when modifying manifest", e);
@ -302,13 +296,14 @@ public class NPatch {
logger.i("Adding metaloader dex...");
try (var is = getClass().getClassLoader().getResourceAsStream(Constants.META_LOADER_DEX_ASSET_PATH)) {
if (is == null) throw new PatchError("Meta loader dex not found");
if (!injectDex) {
dstZFile.add("classes.dex", is);
} else {
var dexCount = srcZFile.entries().stream().filter(entry -> {
var name = entry.getCentralDirectoryHeader().getName();
return name.startsWith("classes") && name.endsWith(".dex");
}).collect(Collectors.toList()).size() + 1;
}).count() + 1; // Used .count() instead of .collect().size() for efficiency
dstZFile.add("classes" + dexCount + ".dex", is);
}
} catch (Throwable e) {
@ -348,7 +343,12 @@ public class NPatch {
for (String arch : ARCHES) {
String entryName = "assets/npatch/so/" + arch + "/libnpatch.so";
try (var is = getClass().getClassLoader().getResourceAsStream(entryName)) {
dstZFile.add(entryName, is, false); // no compress for so
if (is != null) {
dstZFile.add(entryName, is, false); // no compress for so
logger.d("added " + entryName);
} else {
logger.e("Native lib not found: " + entryName);
}
} catch (Throwable e) {
// More exception info
throw new PatchError("Error when adding native lib", e);
@ -368,7 +368,8 @@ public class NPatch {
if (dstZFile.get(name) != null) continue;
if (!injectDex && name.startsWith("classes") && name.endsWith(".dex")) continue;
if (name.equals("AndroidManifest.xml")) continue;
if (name.startsWith("META-INF") && (name.endsWith(".SF") || name.endsWith(".MF") || name.endsWith(".RSA"))) continue;
if (name.startsWith("META-INF") && (name.endsWith(".SF") || name.endsWith(".MF") || name.endsWith(".RSA")))
continue;
try (InputStream is = entry.open()) {
if (name.endsWith(".so") || name.equals("resources.arsc")) {
@ -382,81 +383,33 @@ public class NPatch {
}
dstZFile.realign();
logger.i("Writing apk...");
}
logger.i("Done. Output APK: " + outputFile.getAbsolutePath());
}
private List<String> replacePermissionWithNewPackage(List<String> list, String pkg, String newPackage){
List<String> res = new LinkedList<>();
if (list != null && !list.isEmpty()){
for (String next : list) {
if (next != null && !next.isEmpty()) {
if (next.startsWith(pkg)){
String s = next.replaceAll(pkg, newPackage);
res.add(s);
}else {
res.add(newPackage + "_" + next);
}
}
}
}
return res;
}
private List<String> replaceUsesPermissionWithNewPackage(List<String> list, String pkg, String newPackage){
List<String> res = new LinkedList<>();
if (list != null && !list.isEmpty()){
for (String next : list) {
if (next != null && !next.isEmpty()) {
if (next.startsWith(pkg)){
String s = next.replaceAll(pkg, newPackage);
res.add(s);
}else {
res.add(newPackage + "_" + next);
}
}
}
}
return res;
}
private List<String> replaceProviderWithNewPackage(List<String> list, String pkg, String newPackage){
List<String> res = new LinkedList<>();
if (list != null && !list.isEmpty()){
for (String next : list) {
if (next != null && !next.isEmpty()) {
if (next.startsWith(pkg)){
String s = next.replaceAll(pkg, newPackage);
res.add(s);
}else {
res.add(newPackage + "_" + next);
}
}
}
}
return res;
}
private void embedModules(ZFile zFile) {
for (var module : modules) {
File file = new File(module);
try (var apk = ZFile.openReadOnly(new File(module));
var fileIs = new FileInputStream(file);
var xmlIs = Objects.requireNonNull(apk.get(ANDROID_MANIFEST_XML)).open()
) {
var manifest = Objects.requireNonNull(ManifestParser.parseManifestFile(xmlIs));
var packageName = manifest.packageName;
logger.i(" - " + packageName);
zFile.add(EMBEDDED_MODULES_ASSET_PATH + packageName + ".apk", fileIs);
} catch (NullPointerException | IOException e) {
var fileIs = new FileInputStream(file)) {
var manifestEntry = apk.get(ANDROID_MANIFEST_XML);
if (manifestEntry == null) throw new IOException("Manifest not found in module");
try (var xmlIs = manifestEntry.open()) {
var manifest = Objects.requireNonNull(ManifestParser.parseManifestFile(xmlIs));
var packageName = manifest.packageName;
logger.i(" - " + packageName);
zFile.add(EMBEDDED_MODULES_ASSET_PATH + packageName + ".apk", fileIs);
}
} catch (Exception e) {
logger.e(module + " does not exist or is not a valid apk file. error:" + e);
}
}
}
private byte[] modifyManifestFile(InputStream is, String metadata, int minSdkVersion, String originPackage, String newPackage, List<String> permissions, List<String> uses_permissions, List<String> authorities) throws IOException {
private byte[] modifyManifestFile(InputStream is, String metadata, int minSdkVersion, String originPackage, String newPackage) throws IOException {
ModificationProperty property = new ModificationProperty();
String targetPackage = (newPackage != null && !newPackage.isEmpty()) ? newPackage : originPackage;
@ -493,12 +446,13 @@ public class NPatch {
// TODO: replace query_all with queries -> manager
if (useManager)
property.addUsesPermission("android.permission.QUERY_ALL_PACKAGES");
if (isInjectProvider){
HashMap<String,String> providerMap = new HashMap<>();
providerMap.put("name","bin.mt.file.content.MTDataFilesProvider");
providerMap.put("permission","android.permission.MANAGE_DOCUMENTS");
providerMap.put("exported","true");
providerMap.put("authorities",packageName + ".MTDataFilesProvider");
providerMap.put("authorities", targetPackage + ".MTDataFilesProvider");
providerMap.put("grantUriPermissions","true");
property.addProvider(providerMap,"android.content.action.DOCUMENTS_PROVIDER");