/* ** ** Copyright 2007, The Android Open Source Project ** ** 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.android.packageinstaller; import android.app.Activity; import android.app.ActivityManagerNative; import android.app.AlertDialog; import android.app.Dialog; import android.content.Context; import android.content.DialogInterface; import android.content.DialogInterface.OnCancelListener; import android.content.Intent; import android.content.SharedPreferences; import android.content.pm.ApplicationInfo; import android.content.pm.ManifestDigest; import android.content.pm.PackageInfo; import android.content.pm.PackageManager; import android.content.pm.PackageManager.NameNotFoundException; import android.content.pm.PackageParser; import android.content.pm.PackageUserState; import android.content.pm.VerificationParams; import android.net.Uri; import android.os.Bundle; import android.provider.Settings; import android.support.v4.view.ViewPager; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.View.OnClickListener; import android.view.ViewGroup; import android.widget.AppSecurityPermissions; import android.widget.Button; import android.widget.TabHost; import android.widget.TextView; import java.io.File; /* * This activity is launched when a new application is installed via side loading * The package is first parsed and the user is notified of parse errors via a dialog. * If the package is successfully parsed, the user is notified to turn on the install unknown * applications setting. A memory check is made at this point and the user is notified of out * of memory conditions if any. If the package is already existing on the device, * a confirmation dialog (to replace the existing package) is presented to the user. * Based on the user response the package is then installed by launching InstallAppConfirm * sub activity. All state transitions are handled in this activity */ public class PackageInstallerActivity extends Activity implements OnCancelListener, OnClickListener { private static final String TAG = "PackageInstaller"; private Uri mPackageURI; private Uri mOriginatingURI; private Uri mReferrerURI; private int mOriginatingUid = VerificationParams.NO_UID; private ManifestDigest mPkgDigest; private boolean localLOGV = false; PackageManager mPm; PackageInfo mPkgInfo; ApplicationInfo mSourceInfo; // ApplicationInfo object primarily used for already existing applications private ApplicationInfo mAppInfo = null; // View for install progress View mInstallConfirm; // Buttons to indicate user acceptance private Button mOk; private Button mCancel; CaffeinatedScrollView mScrollView = null; private boolean mOkCanInstall = false; static final String PREFS_ALLOWED_SOURCES = "allowed_sources"; // Dialog identifiers used in showDialog private static final int DLG_BASE = 0; private static final int DLG_UNKNOWN_APPS = DLG_BASE + 1; private static final int DLG_PACKAGE_ERROR = DLG_BASE + 2; private static final int DLG_OUT_OF_SPACE = DLG_BASE + 3; private static final int DLG_INSTALL_ERROR = DLG_BASE + 4; private static final int DLG_ALLOW_SOURCE = DLG_BASE + 5; private void startInstallConfirm() { TabHost tabHost = (TabHost)findViewById(android.R.id.tabhost); tabHost.setup(); ViewPager viewPager = (ViewPager)findViewById(R.id.pager); TabsAdapter adapter = new TabsAdapter(this, tabHost, viewPager); boolean permVisible = false; mScrollView = null; mOkCanInstall = false; int msg = 0; if (mPkgInfo != null) { AppSecurityPermissions perms = new AppSecurityPermissions(this, mPkgInfo); final int NP = perms.getPermissionCount(AppSecurityPermissions.WHICH_PERSONAL); final int ND = perms.getPermissionCount(AppSecurityPermissions.WHICH_DEVICE); if (mAppInfo != null) { msg = (mAppInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0 ? R.string.install_confirm_question_update_system : R.string.install_confirm_question_update; mScrollView = new CaffeinatedScrollView(this); mScrollView.setFillViewport(true); if (perms.getPermissionCount(AppSecurityPermissions.WHICH_NEW) > 0) { permVisible = true; mScrollView.addView(perms.getPermissionsView( AppSecurityPermissions.WHICH_NEW)); } else { LayoutInflater inflater = (LayoutInflater)getSystemService( Context.LAYOUT_INFLATER_SERVICE); TextView label = (TextView)inflater.inflate(R.layout.label, null); label.setText(R.string.no_new_perms); mScrollView.addView(label); } adapter.addTab(tabHost.newTabSpec("new").setIndicator( getText(R.string.newPerms)), mScrollView); } else { findViewById(R.id.tabscontainer).setVisibility(View.GONE); findViewById(R.id.divider).setVisibility(View.VISIBLE); } if (NP > 0 || ND > 0) { permVisible = true; LayoutInflater inflater = (LayoutInflater)getSystemService( Context.LAYOUT_INFLATER_SERVICE); View root = inflater.inflate(R.layout.permissions_list, null); if (mScrollView == null) { mScrollView = (CaffeinatedScrollView)root.findViewById(R.id.scrollview); } if (NP > 0) { ((ViewGroup)root.findViewById(R.id.privacylist)).addView( perms.getPermissionsView(AppSecurityPermissions.WHICH_PERSONAL)); } else { root.findViewById(R.id.privacylist).setVisibility(View.GONE); } if (ND > 0) { ((ViewGroup)root.findViewById(R.id.devicelist)).addView( perms.getPermissionsView(AppSecurityPermissions.WHICH_DEVICE)); } else { root.findViewById(R.id.devicelist).setVisibility(View.GONE); } adapter.addTab(tabHost.newTabSpec("all").setIndicator( getText(R.string.allPerms)), root); } } if (!permVisible) { if (mAppInfo != null) { // This is an update to an application, but there are no // permissions at all. msg = (mAppInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0 ? R.string.install_confirm_question_update_system_no_perms : R.string.install_confirm_question_update_no_perms; } else { // This is a new application with no permissions. msg = R.string.install_confirm_question_no_perms; } tabHost.setVisibility(View.GONE); findViewById(R.id.filler).setVisibility(View.VISIBLE); findViewById(R.id.divider).setVisibility(View.GONE); mScrollView = null; } if (msg != 0) { ((TextView)findViewById(R.id.install_confirm_question)).setText(msg); } mInstallConfirm.setVisibility(View.VISIBLE); mOk = (Button)findViewById(R.id.ok_button); mCancel = (Button)findViewById(R.id.cancel_button); mOk.setOnClickListener(this); mCancel.setOnClickListener(this); if (mScrollView == null) { // There is nothing to scroll view, so the ok button is immediately // set to install. mOk.setText(R.string.install); mOkCanInstall = true; } else { mScrollView.setFullScrollAction(new Runnable() { @Override public void run() { mOk.setText(R.string.install); mOkCanInstall = true; } }); } } private void showDialogInner(int id) { // TODO better fix for this? Remove dialog so that it gets created again removeDialog(id); showDialog(id); } @Override public Dialog onCreateDialog(int id, Bundle bundle) { switch (id) { case DLG_UNKNOWN_APPS: return new AlertDialog.Builder(this) .setTitle(R.string.unknown_apps_dlg_title) .setMessage(R.string.unknown_apps_dlg_text) .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { Log.i(TAG, "Finishing off activity so that user can navigate to settings manually"); finish(); }}) .setPositiveButton(R.string.settings, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { Log.i(TAG, "Launching settings"); launchSettingsAppAndFinish(); } }) .setOnCancelListener(this) .create(); case DLG_PACKAGE_ERROR : return new AlertDialog.Builder(this) .setTitle(R.string.Parse_error_dlg_title) .setMessage(R.string.Parse_error_dlg_text) .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { finish(); } }) .setOnCancelListener(this) .create(); case DLG_OUT_OF_SPACE: // Guaranteed not to be null. will default to package name if not set by app CharSequence appTitle = mPm.getApplicationLabel(mPkgInfo.applicationInfo); String dlgText = getString(R.string.out_of_space_dlg_text, appTitle.toString()); return new AlertDialog.Builder(this) .setTitle(R.string.out_of_space_dlg_title) .setMessage(dlgText) .setPositiveButton(R.string.manage_applications, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { //launch manage applications Intent intent = new Intent("android.intent.action.MANAGE_PACKAGE_STORAGE"); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(intent); finish(); } }) .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { Log.i(TAG, "Canceling installation"); finish(); } }) .setOnCancelListener(this) .create(); case DLG_INSTALL_ERROR : // Guaranteed not to be null. will default to package name if not set by app CharSequence appTitle1 = mPm.getApplicationLabel(mPkgInfo.applicationInfo); String dlgText1 = getString(R.string.install_failed_msg, appTitle1.toString()); return new AlertDialog.Builder(this) .setTitle(R.string.install_failed) .setNeutralButton(R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { finish(); } }) .setMessage(dlgText1) .setOnCancelListener(this) .create(); case DLG_ALLOW_SOURCE: CharSequence appTitle2 = mPm.getApplicationLabel(mSourceInfo); String dlgText2 = getString(R.string.allow_source_dlg_text, appTitle2.toString()); return new AlertDialog.Builder(this) .setTitle(R.string.allow_source_dlg_title) .setMessage(dlgText2) .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { setResult(RESULT_CANCELED); finish(); }}) .setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { SharedPreferences prefs = getSharedPreferences(PREFS_ALLOWED_SOURCES, Context.MODE_PRIVATE); prefs.edit().putBoolean(mSourceInfo.packageName, true).apply(); startInstallConfirm(); } }) .setOnCancelListener(this) .create(); } return null; } private void launchSettingsAppAndFinish() { // Create an intent to launch SettingsTwo activity Intent launchSettingsIntent = new Intent(Settings.ACTION_SECURITY_SETTINGS); launchSettingsIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); startActivity(launchSettingsIntent); finish(); } private boolean isInstallingUnknownAppsAllowed() { return Settings.Global.getInt(getContentResolver(), Settings.Global.INSTALL_NON_MARKET_APPS, 0) > 0; } private void initiateInstall() { String pkgName = mPkgInfo.packageName; // Check if there is already a package on the device with this name // but it has been renamed to something else. String[] oldName = mPm.canonicalToCurrentPackageNames(new String[] { pkgName }); if (oldName != null && oldName.length > 0 && oldName[0] != null) { pkgName = oldName[0]; mPkgInfo.packageName = pkgName; mPkgInfo.applicationInfo.packageName = pkgName; } // Check if package is already installed. display confirmation dialog if replacing pkg try { // This is a little convoluted because we want to get all uninstalled // apps, but this may include apps with just data, and if it is just // data we still want to count it as "installed". mAppInfo = mPm.getApplicationInfo(pkgName, PackageManager.GET_UNINSTALLED_PACKAGES); if ((mAppInfo.flags&ApplicationInfo.FLAG_INSTALLED) == 0) { mAppInfo = null; } } catch (NameNotFoundException e) { mAppInfo = null; } startInstallConfirm(); } void setPmResult(int pmResult) { Intent result = new Intent(); result.putExtra(Intent.EXTRA_INSTALL_RESULT, pmResult); setResult(pmResult == PackageManager.INSTALL_SUCCEEDED ? RESULT_OK : RESULT_FIRST_USER, result); } @Override protected void onCreate(Bundle icicle) { super.onCreate(icicle); // get intent information final Intent intent = getIntent(); mPackageURI = intent.getData(); mOriginatingURI = intent.getParcelableExtra(Intent.EXTRA_ORIGINATING_URI); mReferrerURI = intent.getParcelableExtra(Intent.EXTRA_REFERRER); mPm = getPackageManager(); final String scheme = mPackageURI.getScheme(); if (scheme != null && !"file".equals(scheme) && !"package".equals(scheme)) { Log.w(TAG, "Unsupported scheme " + scheme); setPmResult(PackageManager.INSTALL_FAILED_INVALID_URI); return; } final PackageUtil.AppSnippet as; if ("package".equals(mPackageURI.getScheme())) { try { mPkgInfo = mPm.getPackageInfo(mPackageURI.getSchemeSpecificPart(), PackageManager.GET_PERMISSIONS | PackageManager.GET_UNINSTALLED_PACKAGES); } catch (NameNotFoundException e) { } if (mPkgInfo == null) { Log.w(TAG, "Requested package " + mPackageURI.getScheme() + " not available. Discontinuing installation"); showDialogInner(DLG_PACKAGE_ERROR); setPmResult(PackageManager.INSTALL_FAILED_INVALID_APK); return; } as = new PackageUtil.AppSnippet(mPm.getApplicationLabel(mPkgInfo.applicationInfo), mPm.getApplicationIcon(mPkgInfo.applicationInfo)); } else { final File sourceFile = new File(mPackageURI.getPath()); PackageParser.Package parsed = PackageUtil.getPackageInfo(sourceFile); // Check for parse errors if (parsed == null) { Log.w(TAG, "Parse error when parsing manifest. Discontinuing installation"); showDialogInner(DLG_PACKAGE_ERROR); setPmResult(PackageManager.INSTALL_FAILED_INVALID_APK); return; } mPkgInfo = PackageParser.generatePackageInfo(parsed, null, PackageManager.GET_PERMISSIONS, 0, 0, null, new PackageUserState()); mPkgDigest = parsed.manifestDigest; as = PackageUtil.getAppSnippet(this, mPkgInfo.applicationInfo, sourceFile); } //set view setContentView(R.layout.install_start); mInstallConfirm = findViewById(R.id.install_confirm_panel); mInstallConfirm.setVisibility(View.INVISIBLE); PackageUtil.initSnippetForNewApp(this, as, R.id.app_snippet); mOriginatingUid = getOriginatingUid(intent); // Deal with install source. String callerPackage = getCallingPackage(); if (callerPackage != null && intent.getBooleanExtra( Intent.EXTRA_NOT_UNKNOWN_SOURCE, false)) { try { mSourceInfo = mPm.getApplicationInfo(callerPackage, 0); if (mSourceInfo != null) { if ((mSourceInfo.flags&ApplicationInfo.FLAG_SYSTEM) != 0) { // System apps don't need to be approved. initiateInstall(); return; } /* for now this is disabled, since the user would need to * have enabled the global "unknown sources" setting in the * first place in order to get here. SharedPreferences prefs = getSharedPreferences(PREFS_ALLOWED_SOURCES, Context.MODE_PRIVATE); if (prefs.getBoolean(mSourceInfo.packageName, false)) { // User has already allowed this one. initiateInstall(); return; } //ask user to enable setting first showDialogInner(DLG_ALLOW_SOURCE); return; */ } } catch (NameNotFoundException e) { } } // Check unknown sources. if (!isInstallingUnknownAppsAllowed()) { //ask user to enable setting first showDialogInner(DLG_UNKNOWN_APPS); return; } initiateInstall(); } /** Get the ApplicationInfo for the calling package, if available */ private ApplicationInfo getSourceInfo() { String callingPackage = getCallingPackage(); if (callingPackage != null) { try { return mPm.getApplicationInfo(callingPackage, 0); } catch (NameNotFoundException ex) { // ignore } } return null; } /** Get the originating uid if possible, or VerificationParams.NO_UID if not available */ private int getOriginatingUid(Intent intent) { // The originating uid from the intent. We only trust/use this if it comes from a // system application int uidFromIntent = intent.getIntExtra(Intent.EXTRA_ORIGINATING_UID, VerificationParams.NO_UID); // Get the source info from the calling package, if available. This will be the // definitive calling package, but it only works if the intent was started using // startActivityForResult, ApplicationInfo sourceInfo = getSourceInfo(); if (sourceInfo != null) { if (uidFromIntent != VerificationParams.NO_UID && (mSourceInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { return uidFromIntent; } // We either didn't get a uid in the intent, or we don't trust it. Use the // uid of the calling package instead. return sourceInfo.uid; } // We couldn't get the specific calling package. Let's get the uid instead int callingUid; try { callingUid = ActivityManagerNative.getDefault() .getLaunchedFromUid(getActivityToken()); } catch (android.os.RemoteException ex) { Log.w(TAG, "Could not determine the launching uid."); // nothing else we can do return VerificationParams.NO_UID; } // If we got a uid from the intent, we need to verify that the caller is a // system package before we use it if (uidFromIntent != VerificationParams.NO_UID) { String[] callingPackages = mPm.getPackagesForUid(callingUid); if (callingPackages != null) { for (String packageName: callingPackages) { try { ApplicationInfo applicationInfo = mPm.getApplicationInfo(packageName, 0); if ((applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) { return uidFromIntent; } } catch (NameNotFoundException ex) { // ignore it, and try the next package } } } } // We either didn't get a uid from the intent, or we don't trust it. Use the // calling uid instead. return callingUid; } // Generic handling when pressing back key public void onCancel(DialogInterface dialog) { finish(); } public void onClick(View v) { if(v == mOk) { if (mOkCanInstall || mScrollView == null) { // Start subactivity to actually install the application Intent newIntent = new Intent(); newIntent.putExtra(PackageUtil.INTENT_ATTR_APPLICATION_INFO, mPkgInfo.applicationInfo); newIntent.setData(mPackageURI); newIntent.setClass(this, InstallAppProgress.class); newIntent.putExtra(InstallAppProgress.EXTRA_MANIFEST_DIGEST, mPkgDigest); String installerPackageName = getIntent().getStringExtra( Intent.EXTRA_INSTALLER_PACKAGE_NAME); if (mOriginatingURI != null) { newIntent.putExtra(Intent.EXTRA_ORIGINATING_URI, mOriginatingURI); } if (mReferrerURI != null) { newIntent.putExtra(Intent.EXTRA_REFERRER, mReferrerURI); } if (mOriginatingUid != VerificationParams.NO_UID) { newIntent.putExtra(Intent.EXTRA_ORIGINATING_UID, mOriginatingUid); } if (installerPackageName != null) { newIntent.putExtra(Intent.EXTRA_INSTALLER_PACKAGE_NAME, installerPackageName); } if (getIntent().getBooleanExtra(Intent.EXTRA_RETURN_RESULT, false)) { newIntent.putExtra(Intent.EXTRA_RETURN_RESULT, true); newIntent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT); } if(localLOGV) Log.i(TAG, "downloaded app uri="+mPackageURI); startActivity(newIntent); finish(); } else { mScrollView.pageScroll(View.FOCUS_DOWN); } } else if(v == mCancel) { // Cancel and finish setResult(RESULT_CANCELED); finish(); } } }