Merge "AccountManager: make account session APIs SystemApi."
diff --git a/api/current.txt b/api/current.txt
index d3d8216..1d251ec 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -2750,15 +2750,12 @@
     method public android.os.Bundle addAccountFromCredentials(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, android.os.Bundle) throws android.accounts.NetworkErrorException;
     method public abstract android.os.Bundle confirmCredentials(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, android.os.Bundle) throws android.accounts.NetworkErrorException;
     method public abstract android.os.Bundle editProperties(android.accounts.AccountAuthenticatorResponse, java.lang.String);
-    method public android.os.Bundle finishSession(android.accounts.AccountAuthenticatorResponse, java.lang.String, android.os.Bundle) throws android.accounts.NetworkErrorException;
     method public android.os.Bundle getAccountCredentialsForCloning(android.accounts.AccountAuthenticatorResponse, android.accounts.Account) throws android.accounts.NetworkErrorException;
     method public android.os.Bundle getAccountRemovalAllowed(android.accounts.AccountAuthenticatorResponse, android.accounts.Account) throws android.accounts.NetworkErrorException;
     method public abstract android.os.Bundle getAuthToken(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, java.lang.String, android.os.Bundle) throws android.accounts.NetworkErrorException;
     method public abstract java.lang.String getAuthTokenLabel(java.lang.String);
     method public final android.os.IBinder getIBinder();
     method public abstract android.os.Bundle hasFeatures(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, java.lang.String[]) throws android.accounts.NetworkErrorException;
-    method public android.os.Bundle startAddAccountSession(android.accounts.AccountAuthenticatorResponse, java.lang.String, java.lang.String, java.lang.String[], android.os.Bundle) throws android.accounts.NetworkErrorException;
-    method public android.os.Bundle startUpdateCredentialsSession(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, java.lang.String, android.os.Bundle) throws android.accounts.NetworkErrorException;
     method public abstract android.os.Bundle updateCredentials(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, java.lang.String, android.os.Bundle) throws android.accounts.NetworkErrorException;
     field public static final java.lang.String KEY_CUSTOM_TOKEN_EXPIRY = "android.accounts.expiry";
   }
@@ -2796,7 +2793,6 @@
     method public void clearPassword(android.accounts.Account);
     method public android.accounts.AccountManagerFuture<android.os.Bundle> confirmCredentials(android.accounts.Account, android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
     method public android.accounts.AccountManagerFuture<android.os.Bundle> editProperties(java.lang.String, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
-    method public android.accounts.AccountManagerFuture<android.os.Bundle> finishSession(android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
     method public static android.accounts.AccountManager get(android.content.Context);
     method public android.accounts.Account[] getAccounts();
     method public android.accounts.Account[] getAccountsByType(java.lang.String);
@@ -2824,8 +2820,6 @@
     method public void setAuthToken(android.accounts.Account, java.lang.String, java.lang.String);
     method public void setPassword(android.accounts.Account, java.lang.String);
     method public void setUserData(android.accounts.Account, java.lang.String, java.lang.String);
-    method public android.accounts.AccountManagerFuture<android.os.Bundle> startAddAccountSession(java.lang.String, java.lang.String, java.lang.String[], android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
-    method public android.accounts.AccountManagerFuture<android.os.Bundle> startUpdateCredentialsSession(android.accounts.Account, java.lang.String, android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
     method public android.accounts.AccountManagerFuture<android.os.Bundle> updateCredentials(android.accounts.Account, java.lang.String, android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
     field public static final java.lang.String ACTION_AUTHENTICATOR_INTENT = "android.accounts.AccountAuthenticator";
     field public static final java.lang.String AUTHENTICATOR_ATTRIBUTES_NAME = "account-authenticator";
@@ -2842,8 +2836,6 @@
     field public static final java.lang.String KEY_ACCOUNT_AUTHENTICATOR_RESPONSE = "accountAuthenticatorResponse";
     field public static final java.lang.String KEY_ACCOUNT_MANAGER_RESPONSE = "accountManagerResponse";
     field public static final java.lang.String KEY_ACCOUNT_NAME = "authAccount";
-    field public static final java.lang.String KEY_ACCOUNT_SESSION_BUNDLE = "accountSessionBundle";
-    field public static final java.lang.String KEY_ACCOUNT_STATUS_TOKEN = "accountStatusToken";
     field public static final java.lang.String KEY_ACCOUNT_TYPE = "accountType";
     field public static final java.lang.String KEY_ANDROID_PACKAGE_NAME = "androidPackageName";
     field public static final java.lang.String KEY_AUTHENTICATOR_TYPES = "authenticator_types";
diff --git a/api/test-current.txt b/api/test-current.txt
index 62dc46a..91dcf34 100644
--- a/api/test-current.txt
+++ b/api/test-current.txt
@@ -2750,15 +2750,12 @@
     method public android.os.Bundle addAccountFromCredentials(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, android.os.Bundle) throws android.accounts.NetworkErrorException;
     method public abstract android.os.Bundle confirmCredentials(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, android.os.Bundle) throws android.accounts.NetworkErrorException;
     method public abstract android.os.Bundle editProperties(android.accounts.AccountAuthenticatorResponse, java.lang.String);
-    method public android.os.Bundle finishSession(android.accounts.AccountAuthenticatorResponse, java.lang.String, android.os.Bundle) throws android.accounts.NetworkErrorException;
     method public android.os.Bundle getAccountCredentialsForCloning(android.accounts.AccountAuthenticatorResponse, android.accounts.Account) throws android.accounts.NetworkErrorException;
     method public android.os.Bundle getAccountRemovalAllowed(android.accounts.AccountAuthenticatorResponse, android.accounts.Account) throws android.accounts.NetworkErrorException;
     method public abstract android.os.Bundle getAuthToken(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, java.lang.String, android.os.Bundle) throws android.accounts.NetworkErrorException;
     method public abstract java.lang.String getAuthTokenLabel(java.lang.String);
     method public final android.os.IBinder getIBinder();
     method public abstract android.os.Bundle hasFeatures(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, java.lang.String[]) throws android.accounts.NetworkErrorException;
-    method public android.os.Bundle startAddAccountSession(android.accounts.AccountAuthenticatorResponse, java.lang.String, java.lang.String, java.lang.String[], android.os.Bundle) throws android.accounts.NetworkErrorException;
-    method public android.os.Bundle startUpdateCredentialsSession(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, java.lang.String, android.os.Bundle) throws android.accounts.NetworkErrorException;
     method public abstract android.os.Bundle updateCredentials(android.accounts.AccountAuthenticatorResponse, android.accounts.Account, java.lang.String, android.os.Bundle) throws android.accounts.NetworkErrorException;
     field public static final java.lang.String KEY_CUSTOM_TOKEN_EXPIRY = "android.accounts.expiry";
   }
@@ -2796,7 +2793,6 @@
     method public void clearPassword(android.accounts.Account);
     method public android.accounts.AccountManagerFuture<android.os.Bundle> confirmCredentials(android.accounts.Account, android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
     method public android.accounts.AccountManagerFuture<android.os.Bundle> editProperties(java.lang.String, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
-    method public android.accounts.AccountManagerFuture<android.os.Bundle> finishSession(android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
     method public static android.accounts.AccountManager get(android.content.Context);
     method public android.accounts.Account[] getAccounts();
     method public android.accounts.Account[] getAccountsByType(java.lang.String);
@@ -2824,8 +2820,6 @@
     method public void setAuthToken(android.accounts.Account, java.lang.String, java.lang.String);
     method public void setPassword(android.accounts.Account, java.lang.String);
     method public void setUserData(android.accounts.Account, java.lang.String, java.lang.String);
-    method public android.accounts.AccountManagerFuture<android.os.Bundle> startAddAccountSession(java.lang.String, java.lang.String, java.lang.String[], android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
-    method public android.accounts.AccountManagerFuture<android.os.Bundle> startUpdateCredentialsSession(android.accounts.Account, java.lang.String, android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
     method public android.accounts.AccountManagerFuture<android.os.Bundle> updateCredentials(android.accounts.Account, java.lang.String, android.os.Bundle, android.app.Activity, android.accounts.AccountManagerCallback<android.os.Bundle>, android.os.Handler);
     field public static final java.lang.String ACTION_AUTHENTICATOR_INTENT = "android.accounts.AccountAuthenticator";
     field public static final java.lang.String AUTHENTICATOR_ATTRIBUTES_NAME = "account-authenticator";
@@ -2842,8 +2836,6 @@
     field public static final java.lang.String KEY_ACCOUNT_AUTHENTICATOR_RESPONSE = "accountAuthenticatorResponse";
     field public static final java.lang.String KEY_ACCOUNT_MANAGER_RESPONSE = "accountManagerResponse";
     field public static final java.lang.String KEY_ACCOUNT_NAME = "authAccount";
-    field public static final java.lang.String KEY_ACCOUNT_SESSION_BUNDLE = "accountSessionBundle";
-    field public static final java.lang.String KEY_ACCOUNT_STATUS_TOKEN = "accountStatusToken";
     field public static final java.lang.String KEY_ACCOUNT_TYPE = "accountType";
     field public static final java.lang.String KEY_ANDROID_PACKAGE_NAME = "androidPackageName";
     field public static final java.lang.String KEY_AUTHENTICATOR_TYPES = "authenticator_types";
diff --git a/core/java/android/accounts/AbstractAccountAuthenticator.java b/core/java/android/accounts/AbstractAccountAuthenticator.java
index a312e3f..690e674 100644
--- a/core/java/android/accounts/AbstractAccountAuthenticator.java
+++ b/core/java/android/accounts/AbstractAccountAuthenticator.java
@@ -25,6 +25,7 @@
 import android.content.Context;
 import android.content.Intent;
 import android.Manifest;
+import android.annotation.SystemApi;
 import android.util.Log;
 
 import java.util.Arrays;
@@ -762,7 +763,9 @@
      * @throws NetworkErrorException if the authenticator could not honor the
      *             request due to a network error
      * @see #finishSession(AccountAuthenticatorResponse, String, Bundle)
+     * @hide
      */
+    @SystemApi
     public Bundle startAddAccountSession(
             final AccountAuthenticatorResponse response,
             final String accountType,
@@ -818,7 +821,9 @@
      * @throws NetworkErrorException if the authenticator could not honor the
      *             request due to a network error
      * @see #finishSession(AccountAuthenticatorResponse, String, Bundle)
+     * @hide
      */
+    @SystemApi
     public Bundle startUpdateCredentialsSession(
             final AccountAuthenticatorResponse response,
             final Account account,
@@ -870,7 +875,9 @@
      *         </ul>
      * @throws NetworkErrorException
      * @see #startAddAccountSession and #startUpdateCredentialsSession
+     * @hide
      */
+    @SystemApi
     public Bundle finishSession(
             final AccountAuthenticatorResponse response,
             final String accountType,
diff --git a/core/java/android/accounts/AccountManager.java b/core/java/android/accounts/AccountManager.java
index ada1ac2..2449ee5 100644
--- a/core/java/android/accounts/AccountManager.java
+++ b/core/java/android/accounts/AccountManager.java
@@ -19,6 +19,7 @@
 import android.annotation.NonNull;
 import android.annotation.RequiresPermission;
 import android.annotation.Size;
+import android.annotation.SystemApi;
 import android.app.Activity;
 import android.content.BroadcastReceiver;
 import android.content.ComponentName;
@@ -244,14 +245,18 @@
      * Bundle key used for a {@link Bundle} in result from
      * {@link #startAddAccountSession} and friends which returns session data
      * for installing an account later.
+     * @hide
      */
+    @SystemApi
     public static final String KEY_ACCOUNT_SESSION_BUNDLE = "accountSessionBundle";
 
     /**
      * Bundle key used for the {@link String} account status token in result
      * from {@link #startAddAccountSession} and friends which returns
      * information about a particular account.
+     * @hide
      */
+    @SystemApi
     public static final String KEY_ACCOUNT_STATUS_TOKEN = "accountStatusToken";
 
     public static final String ACTION_AUTHENTICATOR_INTENT =
@@ -2667,7 +2672,9 @@
      *         trouble
      *         </ul>
      * @see #finishSession
+     * @hide
      */
+    @SystemApi
     public AccountManagerFuture<Bundle> startAddAccountSession(
             final String accountType,
             final String authTokenType,
@@ -2749,7 +2756,9 @@
      *         trouble
      *         </ul>
      * @see #finishSession
+     * @hide
      */
+    @SystemApi
     public AccountManagerFuture<Bundle> startUpdateCredentialsSession(
             final Account account,
             final String authTokenType,
@@ -2818,7 +2827,9 @@
      *         trouble
      *         </ul>
      * @see #startAddAccountSession and #startUpdateCredentialsSession
+     * @hide
      */
+    @SystemApi
     public AccountManagerFuture<Bundle> finishSession(
             final Bundle sessionBundle,
             final Activity activity,
diff --git a/services/core/java/com/android/server/accounts/AccountManagerService.java b/services/core/java/com/android/server/accounts/AccountManagerService.java
index 11f9e2d..f345d7e 100644
--- a/services/core/java/com/android/server/accounts/AccountManagerService.java
+++ b/services/core/java/com/android/server/accounts/AccountManagerService.java
@@ -2312,6 +2312,14 @@
         }
 
         final int uid = Binder.getCallingUid();
+        // Only allow system to start session
+        if (!isSystemUid(uid)) {
+            String msg = String.format(
+                    "uid %s cannot stat add account session.",
+                    uid);
+            throw new SecurityException(msg);
+        }
+
         final int userId = UserHandle.getUserId(uid);
         if (!canUserModifyAccounts(userId, uid)) {
             try {
@@ -2499,6 +2507,14 @@
         }
 
         final int uid = Binder.getCallingUid();
+        // Only allow system to finish session
+        if (!isSystemUid(uid)) {
+            String msg = String.format(
+                    "uid %s cannot finish session.",
+                    uid);
+            throw new SecurityException(msg);
+        }
+
         final int userId = UserHandle.getUserId(uid);
         if (!canUserModifyAccounts(userId, uid)) {
             sendErrorResponse(response,
@@ -2717,6 +2733,16 @@
         if (account == null) {
             throw new IllegalArgumentException("account is null");
         }
+
+        final int uid = Binder.getCallingUid();
+        // Only allow system to start session
+        if (!isSystemUid(uid)) {
+            String msg = String.format(
+                    "uid %s cannot start update credentials session.",
+                    uid);
+            throw new SecurityException(msg);
+        }
+
         int userId = UserHandle.getCallingUserId();
         long identityToken = clearCallingIdentity();
         try {