revanced-manager/lib/services/patcher_api.dart

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import 'dart:io';
import 'package:app_installer/app_installer.dart';
import 'package:collection/collection.dart';
import 'package:cr_file_saver/file_saver.dart';
import 'package:device_apps/device_apps.dart';
import 'package:flutter/foundation.dart';
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import 'package:flutter/services.dart';
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import 'package:injectable/injectable.dart';
import 'package:path_provider/path_provider.dart';
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import 'package:revanced_manager/app/app.locator.dart';
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import 'package:revanced_manager/models/patch.dart';
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import 'package:revanced_manager/models/patched_application.dart';
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import 'package:revanced_manager/services/manager_api.dart';
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import 'package:revanced_manager/services/root_api.dart';
import 'package:share_extend/share_extend.dart';
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@lazySingleton
class PatcherAPI {
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static const patcherChannel =
MethodChannel('app.revanced.manager.flutter/patcher');
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final ManagerAPI _managerAPI = locator<ManagerAPI>();
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final RootAPI _rootAPI = RootAPI();
late Directory _dataDir;
late Directory _tmpDir;
late File _keyStoreFile;
List<Patch> _patches = [];
Map filteredPatches = <String, List<Patch>>{};
File? _outFile;
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Future<void> initialize() async {
await _loadPatches();
final Directory appCache = await getTemporaryDirectory();
_dataDir = await getExternalStorageDirectory() ?? appCache;
_tmpDir = Directory('${appCache.path}/patcher');
_keyStoreFile = File('${_dataDir.path}/revanced-manager.keystore');
cleanPatcher();
}
void cleanPatcher() {
if (_tmpDir.existsSync()) {
_tmpDir.deleteSync(recursive: true);
}
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}
Future<void> _loadPatches() async {
try {
if (_patches.isEmpty) {
_patches = await _managerAPI.getPatches();
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}
} on Exception catch (e) {
if (kDebugMode) {
print(e);
}
_patches = List.empty();
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}
}
Future<List<ApplicationWithIcon>> getFilteredInstalledApps(
bool showUniversalPatches,
) async {
final List<ApplicationWithIcon> filteredApps = [];
final bool allAppsIncluded =
_patches.any((patch) => patch.compatiblePackages.isEmpty) &&
showUniversalPatches;
if (allAppsIncluded) {
final allPackages = await DeviceApps.getInstalledApplications(
includeAppIcons: true,
onlyAppsWithLaunchIntent: true,
);
for (final pkg in allPackages) {
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if (!filteredApps.any((app) => app.packageName == pkg.packageName)) {
final appInfo = await DeviceApps.getApp(
pkg.packageName,
true,
) as ApplicationWithIcon?;
if (appInfo != null) {
filteredApps.add(appInfo);
}
}
}
}
for (final Patch patch in _patches) {
for (final Package package in patch.compatiblePackages) {
try {
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if (!filteredApps.any((app) => app.packageName == package.name)) {
final ApplicationWithIcon? app = await DeviceApps.getApp(
package.name,
true,
) as ApplicationWithIcon?;
if (app != null) {
filteredApps.add(app);
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}
}
} on Exception catch (e) {
if (kDebugMode) {
print(e);
}
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}
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}
}
return filteredApps;
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}
List<Patch> getFilteredPatches(String packageName) {
if (!filteredPatches.keys.contains(packageName)) {
final List<Patch> patches = _patches
.where(
(patch) =>
patch.compatiblePackages.isEmpty ||
!patch.name.contains('settings') &&
patch.compatiblePackages
.any((pack) => pack.name == packageName),
)
.toList();
filteredPatches[packageName] = patches;
}
return filteredPatches[packageName];
}
Future<List<Patch>> getAppliedPatches(
List<String> appliedPatches,
) async {
return _patches
.where((patch) => appliedPatches.contains(patch.name))
.toList();
}
Future<bool> needsResourcePatching(
List<Patch> selectedPatches,
) async {
return selectedPatches.any(
(patch) => patch.dependencies.any(
(dep) => dep.contains('resource-'),
),
);
}
Future<bool> needsSettingsPatch(List<Patch> selectedPatches) async {
return selectedPatches.any(
(patch) => patch.dependencies.any(
(dep) => dep.contains('settings'),
),
);
}
Future<String> getOriginalFilePath(
String packageName,
String originalFilePath,
) async {
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try {
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final bool hasRootPermissions = await _rootAPI.hasRootPermissions();
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if (hasRootPermissions) {
originalFilePath = await _rootAPI.getOriginalFilePath(
packageName,
originalFilePath,
);
}
return originalFilePath;
} on Exception catch (e) {
if (kDebugMode) {
print(e);
}
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return originalFilePath;
}
}
Future<void> runPatcher(
String packageName,
String originalFilePath,
List<Patch> selectedPatches,
) async {
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final bool includeSettings = await needsSettingsPatch(selectedPatches);
if (includeSettings) {
try {
final Patch? settingsPatch = _patches.firstWhereOrNull(
(patch) =>
patch.name.contains('settings') &&
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patch.compatiblePackages.any((pack) => pack.name == packageName),
);
if (settingsPatch != null) {
selectedPatches.add(settingsPatch);
}
} on Exception catch (e) {
if (kDebugMode) {
print(e);
}
}
}
final File? patchBundleFile = await _managerAPI.downloadPatches();
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final File? integrationsFile = await _managerAPI.downloadIntegrations();
if (patchBundleFile != null) {
_dataDir.createSync();
_tmpDir.createSync();
final Directory workDir = _tmpDir.createTempSync('tmp-');
final File inputFile = File('${workDir.path}/base.apk');
final File patchedFile = File('${workDir.path}/patched.apk');
_outFile = File('${workDir.path}/out.apk');
final Directory cacheDir = Directory('${workDir.path}/cache');
cacheDir.createSync();
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try {
await patcherChannel.invokeMethod(
'runPatcher',
{
'patchBundleFilePath': patchBundleFile.path,
'originalFilePath': await getOriginalFilePath(
packageName,
originalFilePath,
),
'inputFilePath': inputFile.path,
'patchedFilePath': patchedFile.path,
'outFilePath': _outFile!.path,
'integrationsPath': integrationsFile!.path,
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'selectedPatches': selectedPatches.map((p) => p.name).toList(),
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'cacheDirPath': cacheDir.path,
'keyStoreFilePath': _keyStoreFile.path,
'keystorePassword': _managerAPI.getKeystorePassword(),
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},
);
} on Exception catch (e) {
if (kDebugMode) {
print(e);
}
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}
}
}
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Future<bool> installPatchedFile(PatchedApplication patchedApp) async {
if (_outFile != null) {
try {
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if (patchedApp.isRooted) {
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final bool hasRootPermissions = await _rootAPI.hasRootPermissions();
if (hasRootPermissions) {
return _rootAPI.installApp(
patchedApp.packageName,
patchedApp.apkFilePath,
_outFile!.path,
);
}
} else {
await AppInstaller.installApk(_outFile!.path);
return await DeviceApps.isAppInstalled(
patchedApp.packageName,
);
}
} on Exception catch (e) {
if (kDebugMode) {
print(e);
}
return false;
}
}
return false;
}
void exportPatchedFile(String appName, String version) {
try {
if (_outFile != null) {
final String newName = _getFileName(appName, version);
CRFileSaver.saveFileWithDialog(
SaveFileDialogParams(
sourceFilePath: _outFile!.path,
destinationFileName: newName,
),
);
}
} on Exception catch (e) {
if (kDebugMode) {
print(e);
}
}
}
void sharePatchedFile(String appName, String version) {
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try {
if (_outFile != null) {
final String newName = _getFileName(appName, version);
final int lastSeparator = _outFile!.path.lastIndexOf('/');
final String newPath =
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_outFile!.path.substring(0, lastSeparator + 1) + newName;
final File shareFile = _outFile!.copySync(newPath);
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ShareExtend.share(shareFile.path, 'file');
}
} on Exception catch (e) {
if (kDebugMode) {
print(e);
}
}
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}
String _getFileName(String appName, String version) {
final String prefix = appName.toLowerCase().replaceAll(' ', '-');
final String newName = '$prefix-revanced_v$version.apk';
return newName;
}
Future<void> sharePatcherLog(String logs) async {
final Directory appCache = await getTemporaryDirectory();
final Directory logDir = Directory('${appCache.path}/logs');
logDir.createSync();
final String dateTime = DateTime.now()
.toIso8601String()
.replaceAll('-', '')
.replaceAll(':', '')
.replaceAll('T', '')
.replaceAll('.', '');
final File log =
File('${logDir.path}/revanced-manager_patcher_$dateTime.log');
log.writeAsStringSync(logs);
ShareExtend.share(log.path, 'file');
}
String getSuggestedVersion(String packageName) {
final Map<String, int> versions = {};
for (final Patch patch in _patches) {
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final Package? package = patch.compatiblePackages.firstWhereOrNull(
(pack) => pack.name == packageName,
);
if (package != null) {
for (final String version in package.versions) {
versions.update(
version,
(value) => versions[version]! + 1,
ifAbsent: () => 1,
);
}
}
}
if (versions.isNotEmpty) {
final entries = versions.entries.toList()
..sort((a, b) => a.value.compareTo(b.value));
versions
..clear()
..addEntries(entries);
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versions.removeWhere((key, value) => value != versions.values.last);
return (versions.keys.toList()..sort()).last;
}
return '';
}
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}