+/* ownCloud Android client application\r
+ * Copyright (C) 2012 Bartek Przybylski\r
+ * Copyright (C) 2012-2013 ownCloud Inc.\r
+ *\r
+ * This program is free software: you can redistribute it and/or modify\r
+ * it under the terms of the GNU General Public License as published by\r
+ * the Free Software Foundation, either version 2 of the License, or\r
+ * (at your option) any later version.\r
+ *\r
+ * This program is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU General Public License for more details.\r
+ *\r
+ * You should have received a copy of the GNU General Public License\r
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.\r
+ *\r
+ */\r
+\r
+package com.owncloud.android.authentication;\r
+\r
+\r
+import android.accounts.*;\r
+import android.content.Context;\r
+import android.content.Intent;\r
+import android.os.Bundle;\r
+import android.util.Log;\r
+\r
+\r
+/**\r
+ * Authenticator for ownCloud accounts.\r
+ * \r
+ * Controller class accessed from the system AccountManager, providing integration of ownCloud accounts with the Android system.\r
+ * \r
+ * TODO - better separation in operations for OAuth-capable and regular ownCloud accounts.\r
+ * TODO - review completeness \r
+ * \r
+ * @author David A. Velasco\r
+ */\r
+public class AccountAuthenticator extends AbstractAccountAuthenticator {\r
+ /**\r
+ * Is used by android system to assign accounts to authenticators. Should be\r
+ * used by application and all extensions.\r
+ */\r
+ public static final String ACCOUNT_TYPE = "owncloud";\r
+ public static final String AUTHORITY = "org.owncloud";\r
+ public static final String AUTH_TOKEN_TYPE = "org.owncloud";\r
+ public static final String AUTH_TOKEN_TYPE_PASSWORD = "owncloud.password";\r
+ public static final String AUTH_TOKEN_TYPE_ACCESS_TOKEN = "owncloud.oauth2.access_token";\r
+ public static final String AUTH_TOKEN_TYPE_REFRESH_TOKEN = "owncloud.oauth2.refresh_token";\r
+\r
+ public static final String KEY_AUTH_TOKEN_TYPE = "authTokenType";\r
+ public static final String KEY_REQUIRED_FEATURES = "requiredFeatures";\r
+ public static final String KEY_LOGIN_OPTIONS = "loginOptions";\r
+ public static final String KEY_ACCOUNT = "account";\r
+ /**\r
+ * Value under this key should handle path to webdav php script. Will be\r
+ * removed and usage should be replaced by combining\r
+ * {@link com.owncloud.android.authentication.AuthenticatorActivity.KEY_OC_BASE_URL} and\r
+ * {@link com.owncloud.android.utils.OwnCloudVersion}\r
+ * \r
+ * @deprecated\r
+ */\r
+ public static final String KEY_OC_URL = "oc_url";\r
+ /**\r
+ * Version should be 3 numbers separated by dot so it can be parsed by\r
+ * {@link com.owncloud.android.utils.OwnCloudVersion}\r
+ */\r
+ public static final String KEY_OC_VERSION = "oc_version";\r
+ /**\r
+ * Base url should point to owncloud installation without trailing / ie:\r
+ * http://server/path or https://owncloud.server\r
+ */\r
+ public static final String KEY_OC_BASE_URL = "oc_base_url";\r
+ /**\r
+ * Flag signaling if the ownCloud server can be accessed with OAuth2 access tokens.\r
+ */\r
+ public static final String KEY_SUPPORTS_OAUTH2 = "oc_supports_oauth2";\r
+ \r
+ private static final String TAG = AccountAuthenticator.class.getSimpleName();\r
+ \r
+ private Context mContext;\r
+\r
+ public AccountAuthenticator(Context context) {\r
+ super(context);\r
+ mContext = context;\r
+ }\r
+\r
+ /**\r
+ * {@inheritDoc}\r
+ */\r
+ @Override\r
+ public Bundle addAccount(AccountAuthenticatorResponse response,\r
+ String accountType, String authTokenType,\r
+ String[] requiredFeatures, Bundle options)\r
+ throws NetworkErrorException {\r
+ Log.i(TAG, "Adding account with type " + accountType\r
+ + " and auth token " + authTokenType);\r
+ try {\r
+ validateAccountType(accountType);\r
+ } catch (AuthenticatorException e) {\r
+ Log.e(TAG, "Failed to validate account type " + accountType + ": "\r
+ + e.getMessage());\r
+ e.printStackTrace();\r
+ return e.getFailureBundle();\r
+ }\r
+ final Intent intent = new Intent(mContext, AuthenticatorActivity.class);\r
+ intent.putExtra(AccountManager.KEY_ACCOUNT_AUTHENTICATOR_RESPONSE, response);\r
+ intent.putExtra(KEY_AUTH_TOKEN_TYPE, authTokenType);\r
+ intent.putExtra(KEY_REQUIRED_FEATURES, requiredFeatures);\r
+ intent.putExtra(KEY_LOGIN_OPTIONS, options);\r
+ intent.putExtra(AuthenticatorActivity.EXTRA_ACTION, AuthenticatorActivity.ACTION_CREATE);\r
+\r
+ setIntentFlags(intent);\r
+ \r
+ final Bundle bundle = new Bundle();\r
+ bundle.putParcelable(AccountManager.KEY_INTENT, intent);\r
+ return bundle;\r
+ }\r
+\r
+ /**\r
+ * {@inheritDoc}\r
+ */\r
+ @Override\r
+ public Bundle confirmCredentials(AccountAuthenticatorResponse response,\r
+ Account account, Bundle options) throws NetworkErrorException {\r
+ try {\r
+ validateAccountType(account.type);\r
+ } catch (AuthenticatorException e) {\r
+ Log.e(TAG, "Failed to validate account type " + account.type + ": "\r
+ + e.getMessage());\r
+ e.printStackTrace();\r
+ return e.getFailureBundle();\r
+ }\r
+ Intent intent = new Intent(mContext, AuthenticatorActivity.class);\r
+ intent.putExtra(AccountManager.KEY_ACCOUNT_AUTHENTICATOR_RESPONSE,\r
+ response);\r
+ intent.putExtra(KEY_ACCOUNT, account);\r
+ intent.putExtra(KEY_LOGIN_OPTIONS, options);\r
+\r
+ setIntentFlags(intent);\r
+\r
+ Bundle resultBundle = new Bundle();\r
+ resultBundle.putParcelable(AccountManager.KEY_INTENT, intent);\r
+ return resultBundle;\r
+ }\r
+\r
+ @Override\r
+ public Bundle editProperties(AccountAuthenticatorResponse response,\r
+ String accountType) {\r
+ return null;\r
+ }\r
+\r
+ /**\r
+ * {@inheritDoc}\r
+ */\r
+ @Override\r
+ public Bundle getAuthToken(AccountAuthenticatorResponse response,\r
+ Account account, String authTokenType, Bundle options)\r
+ throws NetworkErrorException {\r
+ /// validate parameters\r
+ try {\r
+ validateAccountType(account.type);\r
+ validateAuthTokenType(authTokenType);\r
+ } catch (AuthenticatorException e) {\r
+ Log.e(TAG, "Failed to validate account type " + account.type + ": "\r
+ + e.getMessage());\r
+ e.printStackTrace();\r
+ return e.getFailureBundle();\r
+ }\r
+ \r
+ /// check if required token is stored\r
+ final AccountManager am = AccountManager.get(mContext);\r
+ String accessToken;\r
+ if (authTokenType.equals(AUTH_TOKEN_TYPE_PASSWORD)) {\r
+ accessToken = am.getPassword(account);\r
+ } else {\r
+ accessToken = am.peekAuthToken(account, authTokenType);\r
+ }\r
+ if (accessToken != null) {\r
+ final Bundle result = new Bundle();\r
+ result.putString(AccountManager.KEY_ACCOUNT_NAME, account.name);\r
+ result.putString(AccountManager.KEY_ACCOUNT_TYPE, ACCOUNT_TYPE);\r
+ result.putString(AccountManager.KEY_AUTHTOKEN, accessToken);\r
+ return result;\r
+ }\r
+ \r
+ /// if not stored, return Intent to access the AuthenticatorActivity and UPDATE the token for the account\r
+ final Intent intent = new Intent(mContext, AuthenticatorActivity.class);\r
+ intent.putExtra(AccountManager.KEY_ACCOUNT_AUTHENTICATOR_RESPONSE, response);\r
+ intent.putExtra(KEY_AUTH_TOKEN_TYPE, authTokenType);\r
+ intent.putExtra(KEY_LOGIN_OPTIONS, options);\r
+ intent.putExtra(AuthenticatorActivity.EXTRA_ACCOUNT, account);\r
+ intent.putExtra(AuthenticatorActivity.EXTRA_ACTION, AuthenticatorActivity.ACTION_UPDATE_TOKEN);\r
+ \r
+\r
+ final Bundle bundle = new Bundle();\r
+ bundle.putParcelable(AccountManager.KEY_INTENT, intent);\r
+ return bundle;\r
+ }\r
+\r
+ @Override\r
+ public String getAuthTokenLabel(String authTokenType) {\r
+ return null;\r
+ }\r
+\r
+ @Override\r
+ public Bundle hasFeatures(AccountAuthenticatorResponse response,\r
+ Account account, String[] features) throws NetworkErrorException {\r
+ final Bundle result = new Bundle();\r
+ result.putBoolean(AccountManager.KEY_BOOLEAN_RESULT, true);\r
+ return result;\r
+ }\r
+\r
+ @Override\r
+ public Bundle updateCredentials(AccountAuthenticatorResponse response,\r
+ Account account, String authTokenType, Bundle options)\r
+ throws NetworkErrorException {\r
+ final Intent intent = new Intent(mContext, AuthenticatorActivity.class);\r
+ intent.putExtra(AccountManager.KEY_ACCOUNT_AUTHENTICATOR_RESPONSE,\r
+ response);\r
+ intent.putExtra(KEY_ACCOUNT, account);\r
+ intent.putExtra(KEY_AUTH_TOKEN_TYPE, authTokenType);\r
+ intent.putExtra(KEY_LOGIN_OPTIONS, options);\r
+ setIntentFlags(intent);\r
+\r
+ final Bundle bundle = new Bundle();\r
+ bundle.putParcelable(AccountManager.KEY_INTENT, intent);\r
+ return bundle;\r
+ }\r
+\r
+ @Override\r
+ public Bundle getAccountRemovalAllowed(\r
+ AccountAuthenticatorResponse response, Account account)\r
+ throws NetworkErrorException {\r
+ return super.getAccountRemovalAllowed(response, account);\r
+ }\r
+\r
+ private void setIntentFlags(Intent intent) {\r
+ intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);\r
+ //intent.addFlags(Intent.FLAG_ACTIVITY_MULTIPLE_TASK);\r
+ //intent.addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY); // incompatible with the authorization code grant in OAuth\r
+ intent.addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS);\r
+ intent.addFlags(Intent.FLAG_FROM_BACKGROUND);\r
+ }\r
+\r
+ private void validateAccountType(String type)\r
+ throws UnsupportedAccountTypeException {\r
+ if (!type.equals(ACCOUNT_TYPE)) {\r
+ throw new UnsupportedAccountTypeException();\r
+ }\r
+ }\r
+\r
+ private void validateAuthTokenType(String authTokenType)\r
+ throws UnsupportedAuthTokenTypeException {\r
+ if (!authTokenType.equals(AUTH_TOKEN_TYPE) &&\r
+ !authTokenType.equals(AUTH_TOKEN_TYPE_PASSWORD) &&\r
+ !authTokenType.equals(AUTH_TOKEN_TYPE_ACCESS_TOKEN) &&\r
+ !authTokenType.equals(AUTH_TOKEN_TYPE_REFRESH_TOKEN) ) {\r
+ throw new UnsupportedAuthTokenTypeException();\r
+ }\r
+ }\r
+\r
+ public static class AuthenticatorException extends Exception {\r
+ private static final long serialVersionUID = 1L;\r
+ private Bundle mFailureBundle;\r
+\r
+ public AuthenticatorException(int code, String errorMsg) {\r
+ mFailureBundle = new Bundle();\r
+ mFailureBundle.putInt(AccountManager.KEY_ERROR_CODE, code);\r
+ mFailureBundle\r
+ .putString(AccountManager.KEY_ERROR_MESSAGE, errorMsg);\r
+ }\r
+\r
+ public Bundle getFailureBundle() {\r
+ return mFailureBundle;\r
+ }\r
+ }\r
+\r
+ public static class UnsupportedAccountTypeException extends\r
+ AuthenticatorException {\r
+ private static final long serialVersionUID = 1L;\r
+\r
+ public UnsupportedAccountTypeException() {\r
+ super(AccountManager.ERROR_CODE_UNSUPPORTED_OPERATION,\r
+ "Unsupported account type");\r
+ }\r
+ }\r
+\r
+ public static class UnsupportedAuthTokenTypeException extends\r
+ AuthenticatorException {\r
+ private static final long serialVersionUID = 1L;\r
+\r
+ public UnsupportedAuthTokenTypeException() {\r
+ super(AccountManager.ERROR_CODE_UNSUPPORTED_OPERATION,\r
+ "Unsupported auth token type");\r
+ }\r
+ }\r
+\r
+ public static class UnsupportedFeaturesException extends\r
+ AuthenticatorException {\r
+ public static final long serialVersionUID = 1L;\r
+\r
+ public UnsupportedFeaturesException() {\r
+ super(AccountManager.ERROR_CODE_UNSUPPORTED_OPERATION,\r
+ "Unsupported features");\r
+ }\r
+ }\r
+\r
+ public static class AccessDeniedException extends AuthenticatorException {\r
+ public AccessDeniedException(int code, String errorMsg) {\r
+ super(AccountManager.ERROR_CODE_INVALID_RESPONSE, "Access Denied");\r
+ }\r
+\r
+ private static final long serialVersionUID = 1L;\r
+\r
+ }\r
+}\r