mirror of
https://github.com/Divested-Mobile/DivestOS-Build.git
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65 lines
3.2 KiB
Diff
65 lines
3.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Thomas Stuart <tjstuart@google.com>
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Date: Sat, 15 Jan 2022 01:15:29 +0000
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Subject: [PATCH] limit TelecomManager#registerPhoneAccount to 10
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bug: 209814693
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Bug: 217934478
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Test: CTS
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Change-Id: I3042a3973dd0dcc8d2fdc96c23d6d41522dc00af
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Merged-In: I3042a3973dd0dcc8d2fdc96c23d6d41522dc00af
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(cherry picked from commit eb3394e3a8e21cd07c4f7a7ad43494ba14a8cbf4)
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Merged-In: I3042a3973dd0dcc8d2fdc96c23d6d41522dc00af
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---
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.../server/telecom/PhoneAccountRegistrar.java | 23 +++++++++++++++++--
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1 file changed, 21 insertions(+), 2 deletions(-)
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diff --git a/src/com/android/server/telecom/PhoneAccountRegistrar.java b/src/com/android/server/telecom/PhoneAccountRegistrar.java
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index 074f3254a..5323a9669 100644
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--- a/src/com/android/server/telecom/PhoneAccountRegistrar.java
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+++ b/src/com/android/server/telecom/PhoneAccountRegistrar.java
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@@ -138,6 +138,7 @@ public class PhoneAccountRegistrar {
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private static final String FILE_NAME = "phone-account-registrar-state.xml";
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@VisibleForTesting
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public static final int EXPECTED_STATE_VERSION = 9;
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+ public static final int MAX_PHONE_ACCOUNT_REGISTRATIONS = 10;
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/** Keep in sync with the same in SipSettings.java */
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private static final String SIP_SHARED_PREFERENCES = "SIP_PREFERENCES";
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@@ -628,8 +629,13 @@ public class PhoneAccountRegistrar {
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return getPhoneAccountHandles(0, null, packageName, false, userHandle);
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}
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- // TODO: Should we implement an artificial limit for # of accounts associated with a single
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- // ComponentName?
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+ /**
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+ * Performs checks before calling addOrReplacePhoneAccount(PhoneAccount)
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+ *
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+ * @param account The {@code PhoneAccount} to add or replace.
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+ * @throws SecurityException if package does not have BIND_TELECOM_CONNECTION_SERVICE permission
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+ * @throws IllegalArgumentException if MAX_PHONE_ACCOUNT_REGISTRATIONS are reached
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+ */
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public void registerPhoneAccount(PhoneAccount account) {
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// Enforce the requirement that a connection service for a phone account has the correct
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// permission.
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@@ -640,6 +646,19 @@ public class PhoneAccountRegistrar {
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throw new SecurityException("PhoneAccount connection service requires "
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+ "BIND_TELECOM_CONNECTION_SERVICE permission.");
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}
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+ //Enforce an upper bound on the number of PhoneAccount's a package can register.
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+ // Most apps should only require 1-2.
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+ if (getPhoneAccountsForPackage(
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+ account.getAccountHandle().getComponentName().getPackageName(),
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+ account.getAccountHandle().getUserHandle()).size()
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+ >= MAX_PHONE_ACCOUNT_REGISTRATIONS) {
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+ Log.w(this, "Phone account %s reached max registration limit for package",
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+ account.getAccountHandle());
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+ throw new IllegalArgumentException(
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+ "Error, cannot register phone account " + account.getAccountHandle()
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+ + " because the limit, " + MAX_PHONE_ACCOUNT_REGISTRATIONS
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+ + ", has been reached");
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+ }
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addOrReplacePhoneAccount(account);
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}
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