Merge "Enforce MODIFY_PHONE_STATE for TelecomManager system APIs." (f8e9bcf4) · Commits · e / os / android_packages_services_Telecomm

src/com/android/server/telecom/TelecomServiceImpl.java

+100 −33

Original line number	Diff line number	Diff line
		@@ -204,10 +204,16 @@ public class TelecomServiceImpl {
		String callingPackage) {
		try {
		Log.startSession("TSI.gPASS");
		synchronized (mLock) {
		if (!canReadPhoneState(callingPackage, "getPhoneAccountsSupportingScheme")) {
		try {
		enforceModifyPermission(
		"getPhoneAccountsSupportingScheme requires MODIFY_PHONE_STATE");
		} catch (SecurityException e) {
		EventLog.writeEvent(0x534e4554, "62347125", Binder.getCallingUid(),
		"getPhoneAccountsSupportingScheme: " + callingPackage);
		return Collections.emptyList();
		}

		synchronized (mLock) {
		final UserHandle callingUserHandle = Binder.getCallingUserHandle();
		long token = Binder.clearCallingIdentity();
		try {
		@@ -270,33 +276,57 @@ public class TelecomServiceImpl {

		@Override
		public int getAllPhoneAccountsCount() {
		synchronized (mLock) {
		try {
		Log.startSession("TSI.gAPAC");
		try {
		enforceModifyPermission(
		"getAllPhoneAccountsCount requires MODIFY_PHONE_STATE permission.");
		} catch (SecurityException e) {
		EventLog.writeEvent(0x534e4554, "62347125", Binder.getCallingUid(),
		"getAllPhoneAccountsCount");
		throw e;
		}

		synchronized (mLock) {
		try {
		// This list is pre-filtered for the calling user.
		return getAllPhoneAccounts().size();
		} catch (Exception e) {
		Log.e(this, e, "getAllPhoneAccountsCount");
		throw e;

		}
		}
		} finally {
		Log.endSession();
		}
		}
		}

		@Override
		public List<PhoneAccount> getAllPhoneAccounts() {
		synchronized (mLock) {
		try {
		Log.startSession("TSI.gAPA");
		try {
		enforceModifyPermission(
		"getAllPhoneAccounts requires MODIFY_PHONE_STATE permission.");
		} catch (SecurityException e) {
		EventLog.writeEvent(0x534e4554, "62347125", Binder.getCallingUid(),
		"getAllPhoneAccounts");
		throw e;
		}

		final UserHandle callingUserHandle = Binder.getCallingUserHandle();
		long token = Binder.clearCallingIdentity();
		try {
		Log.startSession("TSI.gAPA");
		return mPhoneAccountRegistrar.getAllPhoneAccounts(callingUserHandle);
		} catch (Exception e) {
		Log.e(this, e, "getAllPhoneAccounts");
		throw e;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		} finally {
		Log.endSession();
		}
		}
		@@ -304,20 +334,32 @@ public class TelecomServiceImpl {

		@Override
		public List<PhoneAccountHandle> getAllPhoneAccountHandles() {
		try {
		Log.startSession("TSI.gAPAH");
		try {
		enforceModifyPermission(
		"getAllPhoneAccountHandles requires MODIFY_PHONE_STATE permission.");
		} catch (SecurityException e) {
		EventLog.writeEvent(0x534e4554, "62347125", Binder.getCallingUid(),
		"getAllPhoneAccountHandles");
		throw e;
		}

		synchronized (mLock) {
		final UserHandle callingUserHandle = Binder.getCallingUserHandle();
		long token = Binder.clearCallingIdentity();
		try {
		Log.startSession("TSI.gAPAH");
		return mPhoneAccountRegistrar.getAllPhoneAccountHandles(callingUserHandle);
		} catch (Exception e) {
		Log.e(this, e, "getAllPhoneAccounts");
		throw e;
		} finally {
		Binder.restoreCallingIdentity(token);
		Log.endSession();
		}
		}
		} finally {
		Log.endSession();
		}
		}

		@Override
		@@ -682,8 +724,14 @@ public class TelecomServiceImpl {
		public boolean isRinging(String callingPackage) {
		try {
		Log.startSession("TSI.iR");
		if (!canReadPhoneState(callingPackage, "isRinging")) {
		return false;
		if (!isPrivilegedDialerCalling(callingPackage)) {
		try {
		enforceModifyPermission(
		"isRinging requires MODIFY_PHONE_STATE permission.");
		} catch (SecurityException e) {
		EventLog.writeEvent(0x534e4554, "62347125", "isRinging: " + callingPackage);
		throw e;
		}
		}

		synchronized (mLock) {
		@@ -932,9 +980,15 @@ public class TelecomServiceImpl {
		public boolean isTtySupported(String callingPackage) {
		try {
		Log.startSession("TSI.iTS");
		if (!canReadPhoneState(callingPackage, "isTtySupported")) {
		throw new SecurityException("Only default dialer or an app with" +
		"READ_PRIVILEGED_PHONE_STATE or READ_PHONE_STATE can call this api");
		if (!isPrivilegedDialerCalling(callingPackage)) {
		try {
		enforceModifyPermission(
		"isTtySupported requires MODIFY_PHONE_STATE permission.");
		} catch (SecurityException e) {
		EventLog.writeEvent(0x534e4554, "62347125", "isTtySupported: " +
		callingPackage);
		throw e;
		}
		}

		synchronized (mLock) {
		@@ -1034,6 +1088,15 @@ public class TelecomServiceImpl {
		public void addNewUnknownCall(PhoneAccountHandle phoneAccountHandle, Bundle extras) {
		try {
		Log.startSession("TSI.aNUC");
		try {
		enforceModifyPermission(
		"addNewUnknownCall requires MODIFY_PHONE_STATE permission.");
		} catch (SecurityException e) {
		EventLog.writeEvent(0x534e4554, "62347125", Binder.getCallingUid(),
		"addNewUnknownCall");
		throw e;
		}

		synchronized (mLock) {
		if (phoneAccountHandle != null &&
		phoneAccountHandle.getComponentName() != null) {
		@@ -1517,6 +1580,10 @@ public class TelecomServiceImpl {
		enforcePermission(MODIFY_PHONE_STATE);
		}

		private void enforceModifyPermission(String message) {
		mContext.enforceCallingOrSelfPermission(MODIFY_PHONE_STATE, message);
		}

		private void enforcePermission(String permission) {
		mContext.enforceCallingOrSelfPermission(permission, null);
		}