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/** * Copyright 2010-present Facebook.//www. j a va2 s . com * * 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.facebook.internal; import android.content.ContentResolver; import android.content.Context; import android.content.Intent; import android.content.pm.*; import android.database.Cursor; import android.net.Uri; import android.os.Build; import android.os.Bundle; import android.text.TextUtils; import com.facebook.*; import java.util.*; /** * com.facebook.internal is solely for the use of other packages within the Facebook SDK for Android. Use of * any of the classes in this package is unsupported, and they may be modified or removed without warning at * any time. */ public final class NativeProtocol { public static final int NO_PROTOCOL_AVAILABLE = -1; private static final String FACEBOOK_PROXY_AUTH_ACTIVITY = "com.facebook.katana.ProxyAuth"; private static final String FACEBOOK_TOKEN_REFRESH_ACTIVITY = "com.facebook.katana.platform.TokenRefreshService"; public static final String FACEBOOK_PROXY_AUTH_PERMISSIONS_KEY = "scope"; public static final String FACEBOOK_PROXY_AUTH_APP_ID_KEY = "client_id"; public static final String FACEBOOK_PROXY_AUTH_E2E_KEY = "e2e"; // --------------------------------------------------------------------------------------------- // Native Protocol updated 2012-11 static final String INTENT_ACTION_PLATFORM_ACTIVITY = "com.facebook.platform.PLATFORM_ACTIVITY"; static final String INTENT_ACTION_PLATFORM_SERVICE = "com.facebook.platform.PLATFORM_SERVICE"; public static final int PROTOCOL_VERSION_20121101 = 20121101; public static final int PROTOCOL_VERSION_20130502 = 20130502; public static final int PROTOCOL_VERSION_20130618 = 20130618; public static final int PROTOCOL_VERSION_20131107 = 20131107; public static final int PROTOCOL_VERSION_20140204 = 20140204; public static final int PROTOCOL_VERSION_20140324 = 20140324; public static final String EXTRA_PROTOCOL_VERSION = "com.facebook.platform.protocol.PROTOCOL_VERSION"; public static final String EXTRA_PROTOCOL_ACTION = "com.facebook.platform.protocol.PROTOCOL_ACTION"; public static final String EXTRA_PROTOCOL_CALL_ID = "com.facebook.platform.protocol.CALL_ID"; public static final String EXTRA_GET_INSTALL_DATA_PACKAGE = "com.facebook.platform.extra.INSTALLDATA_PACKAGE"; // Messages supported by PlatformService: public static final int MESSAGE_GET_ACCESS_TOKEN_REQUEST = 0x10000; public static final int MESSAGE_GET_ACCESS_TOKEN_REPLY = 0x10001; static final int MESSAGE_GET_PROTOCOL_VERSIONS_REQUEST = 0x10002; static final int MESSAGE_GET_PROTOCOL_VERSIONS_REPLY = 0x10003; public static final int MESSAGE_GET_INSTALL_DATA_REQUEST = 0x10004; public static final int MESSAGE_GET_INSTALL_DATA_REPLY = 0x10005; // MESSAGE_ERROR_REPLY data keys: // See STATUS_* // MESSAGE_GET_ACCESS_TOKEN_REQUEST data keys: // EXTRA_APPLICATION_ID // MESSAGE_GET_ACCESS_TOKEN_REPLY data keys: // EXTRA_ACCESS_TOKEN // EXTRA_EXPIRES_SECONDS_SINCE_EPOCH // EXTRA_PERMISSIONS // MESSAGE_GET_PROTOCOL_VERSIONS_REPLY data keys: static final String EXTRA_PROTOCOL_VERSIONS = "com.facebook.platform.extra.PROTOCOL_VERSIONS"; // Values of EXTRA_PROTOCOL_ACTION supported by PlatformActivity: public static final String ACTION_FEED_DIALOG = "com.facebook.platform.action.request.FEED_DIALOG"; public static final String ACTION_MESSAGE_DIALOG = "com.facebook.platform.action.request.MESSAGE_DIALOG"; public static final String ACTION_OGACTIONPUBLISH_DIALOG = "com.facebook.platform.action.request.OGACTIONPUBLISH_DIALOG"; public static final String ACTION_OGMESSAGEPUBLISH_DIALOG = "com.facebook.platform.action.request.OGMESSAGEPUBLISH_DIALOG"; // Values of EXTRA_PROTOCOL_ACTION values returned by PlatformActivity: public static final String ACTION_FEED_DIALOG_REPLY = "com.facebook.platform.action.reply.FEED_DIALOG"; public static final String ACTION_MESSAGE_DIALOG_REPLY = "com.facebook.platform.action.reply.MESSAGE_DIALOG"; public static final String ACTION_OGACTIONPUBLISH_DIALOG_REPLY = "com.facebook.platform.action.reply.OGACTIONPUBLISH_DIALOG"; public static final String ACTION_OGMESSAGEPUBLISH_DIALOG_REPLY = "com.facebook.platform.action.reply.OGMESSAGEPUBLISH_DIALOG"; // Extras supported for ACTION_LOGIN_DIALOG: public static final String EXTRA_PERMISSIONS = "com.facebook.platform.extra.PERMISSIONS"; public static final String EXTRA_APPLICATION_ID = "com.facebook.platform.extra.APPLICATION_ID"; public static final String EXTRA_APPLICATION_NAME = "com.facebook.platform.extra.APPLICATION_NAME"; // Extras returned by setResult() for ACTION_LOGIN_DIALOG public static final String EXTRA_ACCESS_TOKEN = "com.facebook.platform.extra.ACCESS_TOKEN"; public static final String EXTRA_EXPIRES_SECONDS_SINCE_EPOCH = "com.facebook.platform.extra.EXPIRES_SECONDS_SINCE_EPOCH"; // EXTRA_PERMISSIONS // Extras supported for ACTION_FEED_DIALOG: public static final String EXTRA_PLACE_TAG = "com.facebook.platform.extra.PLACE"; public static final String EXTRA_FRIEND_TAGS = "com.facebook.platform.extra.FRIENDS"; public static final String EXTRA_LINK = "com.facebook.platform.extra.LINK"; public static final String EXTRA_IMAGE = "com.facebook.platform.extra.IMAGE"; public static final String EXTRA_TITLE = "com.facebook.platform.extra.TITLE"; public static final String EXTRA_SUBTITLE = "com.facebook.platform.extra.SUBTITLE"; public static final String EXTRA_DESCRIPTION = "com.facebook.platform.extra.DESCRIPTION"; public static final String EXTRA_REF = "com.facebook.platform.extra.REF"; public static final String EXTRA_DATA_FAILURES_FATAL = "com.facebook.platform.extra.DATA_FAILURES_FATAL"; public static final String EXTRA_PHOTOS = "com.facebook.platform.extra.PHOTOS"; // Extras supported for ACTION_OGACTIONPUBLISH_DIALOG: public static final String EXTRA_ACTION = "com.facebook.platform.extra.ACTION"; public static final String EXTRA_ACTION_TYPE = "com.facebook.platform.extra.ACTION_TYPE"; public static final String EXTRA_PREVIEW_PROPERTY_NAME = "com.facebook.platform.extra.PREVIEW_PROPERTY_NAME"; // OG objects will have this key to set to true if they should be created as part of OG Action publish public static final String OPEN_GRAPH_CREATE_OBJECT_KEY = "fbsdk:create_object"; // Determines whether an image is user generated public static final String IMAGE_USER_GENERATED_KEY = "user_generated"; // url key for images public static final String IMAGE_URL_KEY = "url"; // Keys for status data in MESSAGE_ERROR_REPLY from PlatformService and for error // extras returned by PlatformActivity's setResult() in case of errors: public static final String STATUS_ERROR_TYPE = "com.facebook.platform.status.ERROR_TYPE"; public static final String STATUS_ERROR_DESCRIPTION = "com.facebook.platform.status.ERROR_DESCRIPTION"; public static final String STATUS_ERROR_CODE = "com.facebook.platform.status.ERROR_CODE"; public static final String STATUS_ERROR_SUBCODE = "com.facebook.platform.status.ERROR_SUBCODE"; public static final String STATUS_ERROR_JSON = "com.facebook.platform.status.ERROR_JSON"; // Expected values for ERROR_KEY_TYPE. Clients should tolerate other values: public static final String ERROR_UNKNOWN_ERROR = "UnknownError"; public static final String ERROR_PROTOCOL_ERROR = "ProtocolError"; public static final String ERROR_USER_CANCELED = "UserCanceled"; public static final String ERROR_APPLICATION_ERROR = "ApplicationError"; public static final String ERROR_NETWORK_ERROR = "NetworkError"; public static final String ERROR_PERMISSION_DENIED = "PermissionDenied"; public static final String ERROR_SERVICE_DISABLED = "ServiceDisabled"; public static final String AUDIENCE_ME = "SELF"; public static final String AUDIENCE_FRIENDS = "ALL_FRIENDS"; public static final String AUDIENCE_EVERYONE = "EVERYONE"; // Request codes for different categories of native protocol calls. public static final int DIALOG_REQUEST_CODE = 0xfacf; private static final String CONTENT_SCHEME = "content://"; private static final String PLATFORM_PROVIDER_VERSIONS = ".provider.PlatformProvider/versions"; // Columns returned by PlatformProvider private static final String PLATFORM_PROVIDER_VERSION_COLUMN = "version"; // Broadcast action for asynchronously-executing AppCalls private static final String PLATFORM_ASYNC_APPCALL_ACTION = "com.facebook.platform.AppCallResultBroadcast"; private static abstract class NativeAppInfo { abstract protected String getPackage(); private static final String FBI_HASH = "a4b7452e2ed8f5f191058ca7bbfd26b0d3214bfc"; private static final String FBL_HASH = "5e8f16062ea3cd2c4a0d547876baa6f38cabf625"; private static final String FBR_HASH = "8a3c4b262d721acd49a4bf97d5213199c86fa2b9"; private static final HashSet<String> validAppSignatureHashes = buildAppSignatureHashes(); private static HashSet<String> buildAppSignatureHashes() { HashSet<String> set = new HashSet<String>(); set.add(FBR_HASH); set.add(FBI_HASH); set.add(FBL_HASH); return set; } public boolean validateSignature(Context context, String packageName) { String brand = Build.BRAND; int applicationFlags = context.getApplicationInfo().flags; if (brand.startsWith("generic") && (applicationFlags & ApplicationInfo.FLAG_DEBUGGABLE) != 0) { // We are debugging on an emulator, don't validate package signature. return true; } PackageInfo packageInfo = null; try { packageInfo = context.getPackageManager().getPackageInfo(packageName, PackageManager.GET_SIGNATURES); } catch (PackageManager.NameNotFoundException e) { return false; } for (Signature signature : packageInfo.signatures) { String hashedSignature = Utility.sha1hash(signature.toByteArray()); if (validAppSignatureHashes.contains(hashedSignature)) { return true; } } return false; } } private static class KatanaAppInfo extends NativeAppInfo { static final String KATANA_PACKAGE = "com.facebook.katana"; @Override protected String getPackage() { return KATANA_PACKAGE; } } private static class MessengerAppInfo extends NativeAppInfo { static final String MESSENGER_PACKAGE = "com.facebook.orca"; @Override protected String getPackage() { return MESSENGER_PACKAGE; } } private static class WakizashiAppInfo extends NativeAppInfo { static final String WAKIZASHI_PACKAGE = "com.facebook.wakizashi"; @Override protected String getPackage() { return WAKIZASHI_PACKAGE; } } private static final NativeAppInfo FACEBOOK_APP_INFO = new KatanaAppInfo(); private static List<NativeAppInfo> facebookAppInfoList = buildFacebookAppList(); private static Map<String, List<NativeAppInfo>> actionToAppInfoMap = buildActionToAppInfoMap(); private static List<NativeAppInfo> buildFacebookAppList() { List<NativeAppInfo> list = new ArrayList<NativeAppInfo>(); // Katana needs to be the first thing in the list since it will get selected as the default FACEBOOK_APP_INFO list.add(FACEBOOK_APP_INFO); list.add(new WakizashiAppInfo()); return list; } private static Map<String, List<NativeAppInfo>> buildActionToAppInfoMap() { Map<String, List<NativeAppInfo>> map = new HashMap<String, List<NativeAppInfo>>(); ArrayList<NativeAppInfo> messengerAppInfoList = new ArrayList<NativeAppInfo>(); messengerAppInfoList.add(new MessengerAppInfo()); // Add individual actions and the list they should try map.put(ACTION_OGACTIONPUBLISH_DIALOG, facebookAppInfoList); map.put(ACTION_FEED_DIALOG, facebookAppInfoList); map.put(ACTION_MESSAGE_DIALOG, messengerAppInfoList); map.put(ACTION_OGMESSAGEPUBLISH_DIALOG, messengerAppInfoList); return map; } static Intent validateActivityIntent(Context context, Intent intent, NativeAppInfo appInfo) { if (intent == null) { return null; } ResolveInfo resolveInfo = context.getPackageManager().resolveActivity(intent, 0); if (resolveInfo == null) { return null; } if (!appInfo.validateSignature(context, resolveInfo.activityInfo.packageName)) { return null; } return intent; } static Intent validateServiceIntent(Context context, Intent intent, NativeAppInfo appInfo) { if (intent == null) { return null; } ResolveInfo resolveInfo = context.getPackageManager().resolveService(intent, 0); if (resolveInfo == null) { return null; } if (!appInfo.validateSignature(context, resolveInfo.serviceInfo.packageName)) { return null; } return intent; } public static Intent createProxyAuthIntent(Context context, String applicationId, List<String> permissions, String e2e, boolean isRerequest) { for (NativeAppInfo appInfo : facebookAppInfoList) { Intent intent = new Intent() .setClassName(appInfo.getPackage(), FACEBOOK_PROXY_AUTH_ACTIVITY) .putExtra(FACEBOOK_PROXY_AUTH_APP_ID_KEY, applicationId); if (!Utility.isNullOrEmpty(permissions)) { intent.putExtra(FACEBOOK_PROXY_AUTH_PERMISSIONS_KEY, TextUtils.join(",", permissions)); } if (!Utility.isNullOrEmpty(e2e)) { intent.putExtra(FACEBOOK_PROXY_AUTH_E2E_KEY, e2e); } intent.putExtra(ServerProtocol.DIALOG_PARAM_RESPONSE_TYPE, ServerProtocol.DIALOG_RESPONSE_TYPE_TOKEN); intent.putExtra(ServerProtocol.DIALOG_PARAM_RETURN_SCOPES, ServerProtocol.DIALOG_RETURN_SCOPES_TRUE); if (!Settings.getPlatformCompatibilityEnabled()) { // Override the API Version for Auth intent.putExtra(ServerProtocol.DIALOG_PARAM_LEGACY_OVERRIDE, ServerProtocol.GRAPH_API_VERSION); // Only set the rerequest auth type for non legacy requests if (isRerequest) { intent.putExtra(ServerProtocol.DIALOG_PARAM_AUTH_TYPE, ServerProtocol.DIALOG_REREQUEST_AUTH_TYPE); } } intent = validateActivityIntent(context, intent, appInfo); if (intent != null) { return intent; } } return null; } public static Intent createTokenRefreshIntent(Context context) { for (NativeAppInfo appInfo : facebookAppInfoList) { Intent intent = new Intent() .setClassName(appInfo.getPackage(), FACEBOOK_TOKEN_REFRESH_ACTIVITY); intent = validateServiceIntent(context, intent, appInfo); if (intent != null) { return intent; } } return null; } // Note: be sure this stays sorted in descending order; add new versions at the beginning private static final List<Integer> KNOWN_PROTOCOL_VERSIONS = Arrays.asList( PROTOCOL_VERSION_20140324, PROTOCOL_VERSION_20140204, PROTOCOL_VERSION_20131107, PROTOCOL_VERSION_20130618, PROTOCOL_VERSION_20130502, PROTOCOL_VERSION_20121101 ); private static Intent findActivityIntent(Context context, String activityAction, String internalAction) { List<NativeAppInfo> list = actionToAppInfoMap.get(internalAction); if (list == null) { return null; } Intent intent = null; for (NativeAppInfo appInfo : list) { intent = new Intent() .setAction(activityAction) .setPackage(appInfo.getPackage()) .addCategory(Intent.CATEGORY_DEFAULT); intent = validateActivityIntent(context, intent, appInfo); if (intent != null) { return intent; } } return intent; } public static Intent createPlatformActivityIntent(Context context, String action, int version, Bundle extras) { Intent intent = findActivityIntent(context, INTENT_ACTION_PLATFORM_ACTIVITY, action); if (intent == null) { return null; } intent.putExtras(extras) .putExtra(EXTRA_PROTOCOL_VERSION, version) .putExtra(EXTRA_PROTOCOL_ACTION, action); return intent; } public static Intent createPlatformServiceIntent(Context context) { for (NativeAppInfo appInfo : facebookAppInfoList) { Intent intent = new Intent(INTENT_ACTION_PLATFORM_SERVICE) .setPackage(appInfo.getPackage()) .addCategory(Intent.CATEGORY_DEFAULT); intent = validateServiceIntent(context, intent, appInfo); if (intent != null) { return intent; } } return null; } public static boolean isErrorResult(Intent resultIntent) { return resultIntent.hasExtra(STATUS_ERROR_TYPE); } public static Exception getErrorFromResult(Intent resultIntent) { if (!isErrorResult(resultIntent)) { return null; } String type = resultIntent.getStringExtra(STATUS_ERROR_TYPE); String description = resultIntent.getStringExtra(STATUS_ERROR_DESCRIPTION); if (type.equalsIgnoreCase(ERROR_USER_CANCELED)) { return new FacebookOperationCanceledException(description); } /* TODO parse error values and create appropriate exception class */ return new FacebookException(description); } public static int getLatestAvailableProtocolVersionForService(Context context, final int minimumVersion) { // Services are currently always against the Facebook App return getLatestAvailableProtocolVersionForAppInfoList(context, facebookAppInfoList, minimumVersion); } public static int getLatestAvailableProtocolVersionForAction(Context context, String action, final int minimumVersion) { List<NativeAppInfo> appInfoList = actionToAppInfoMap.get(action); return getLatestAvailableProtocolVersionForAppInfoList(context, appInfoList, minimumVersion); } private static int getLatestAvailableProtocolVersionForAppInfoList(Context context, List<NativeAppInfo> appInfoList, final int minimumVersion) { if (appInfoList == null) { return NO_PROTOCOL_AVAILABLE; } // Could potentially cache the NativeAppInfo to latestProtocolVersion for (NativeAppInfo appInfo : appInfoList) { int protocolVersion = getLatestAvailableProtocolVersionForAppInfo(context, appInfo, minimumVersion); if (protocolVersion != NO_PROTOCOL_AVAILABLE) { return protocolVersion; } } return NO_PROTOCOL_AVAILABLE; } private static int getLatestAvailableProtocolVersionForAppInfo(Context context, NativeAppInfo appInfo, final int minimumVersion) { ContentResolver contentResolver = context.getContentResolver(); String [] projection = new String[]{ PLATFORM_PROVIDER_VERSION_COLUMN }; Uri uri = buildPlatformProviderVersionURI(appInfo); Cursor c = null; try { c = contentResolver.query(uri, projection, null, null, null); if (c == null) { return NO_PROTOCOL_AVAILABLE; } Set<Integer> versions = new HashSet<Integer>(); while (c.moveToNext()) { int version = c.getInt(c.getColumnIndex(PLATFORM_PROVIDER_VERSION_COLUMN)); versions.add(version); } for (Integer knownVersion : KNOWN_PROTOCOL_VERSIONS) { if (knownVersion < minimumVersion) { return NO_PROTOCOL_AVAILABLE; } if (versions.contains(knownVersion)) { return knownVersion; } } } finally { if (c != null) { c.close(); } } return NO_PROTOCOL_AVAILABLE; } private static Uri buildPlatformProviderVersionURI(NativeAppInfo appInfo) { return Uri.parse(CONTENT_SCHEME + appInfo.getPackage() + PLATFORM_PROVIDER_VERSIONS); } }