From c34231b9bf483f25c1e60a93a8cef87d94d74398 Mon Sep 17 00:00:00 2001
From: M66B <marcel@faircode.eu>
Date: Fri, 9 Jan 2015 10:28:17 +0100
Subject: [PATCH] Added restrictions Cast.getDeviceId/getIpAddress

Fixes #2108
---
 CHANGELOG.md                                  |  1 +
 res/values/functions.xml                      |  2 +
 src/biz/bokhorst/xprivacy/Meta.java           |  3 +
 src/biz/bokhorst/xprivacy/PrivacyManager.java |  3 +
 src/biz/bokhorst/xprivacy/XCastDevice.java    | 56 +++++++++++++++++++
 src/biz/bokhorst/xprivacy/XPrivacy.java       |  7 +++
 6 files changed, 72 insertions(+)
 create mode 100644 src/biz/bokhorst/xprivacy/XCastDevice.java

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26293fbf5..16c892e81 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,6 +23,7 @@ Changelog
 
 * Prevent accidental application name clicks ([issue](/../../issues/2109))
 * Fixed restriction *USB.getSerialNumber*
+* Added restriction *Cast.getDeviceId* and *Cast.getIpAddress* ([issue](/../../issues/2108))
 
 [Open issues](https://github.com/M66B/XPrivacy/issues?state=open)
 
diff --git a/res/values/functions.xml b/res/values/functions.xml
index 774515c85..60001bb89 100644
--- a/res/values/functions.xml
+++ b/res/values/functions.xml
@@ -99,6 +99,8 @@
     <string name="identification_USB_getDeviceName" translatable="false"><![CDATA[<a href="https://developer.android.com/reference/android/hardware/usb/UsbDevice.html#getDeviceName()">Google documentation</a>]]></string>
     <string name="identification_USB_getSerialNumber" translatable="false"><![CDATA[<a href="https://developer.android.com/reference/android/hardware/usb/UsbDevice.html#getSerialNumber()">Google documentation</a>]]></string>
     <string name="identification_Srv_Android_ID" translatable="false"><![CDATA[<a href="https://developer.android.com/reference/android/provider/Settings.Secure.html#ANDROID_ID">Google documentation</a>]]></string>
+    <string name="identification_Cast_getDeviceId" translatable="false"><![CDATA[<a href="http://developer.android.com/reference/com/google/android/gms/cast/CastDevice.html#getDeviceId()">Google documentation</a>]]></string>
+    <string name="identification_Cast_getIpAddress" translatable="false"><![CDATA[<a href="http://developer.android.com/reference/com/google/android/gms/cast/CastDevice.html#getIpAddress()">Google documentation</a>]]></string>
 
     <!-- internet -->
     <string name="internet_NetworkInterface_getByIndex" translatable="false"><![CDATA[<a href="https://developer.android.com/reference/java/net/NetworkInterface.html#getByIndex(int)">Google documentation</a>]]></string>
diff --git a/src/biz/bokhorst/xprivacy/Meta.java b/src/biz/bokhorst/xprivacy/Meta.java
index 9b8b76636..03d09ce83 100644
--- a/src/biz/bokhorst/xprivacy/Meta.java
+++ b/src/biz/bokhorst/xprivacy/Meta.java
@@ -150,6 +150,9 @@ public static List<Hook> get() {
 
 		mListHook.add(new Hook("identification", "Srv_Android_ID", "", 19, "2.99", "getString").AOSP(19));
 
+		mListHook.add(new Hook("identification", "Cast.getDeviceId", "", 1, "3.5.11", null).unsafe());
+		mListHook.add(new Hook("identification", "Cast.getIpAddress", "", 1, "3.5.11", null).unsafe());
+
 		// java.net.NetworkInterface
 		mListHook.add(new Hook("internet", "NetworkInterface.getByIndex", "INTERNET", 19, "2.2.2", null).unsafe());
 		mListHook.add(new Hook("internet", "NetworkInterface.getByInetAddress", "INTERNET", 1, "2.2.2", "getByInetAddress").unsafe());
diff --git a/src/biz/bokhorst/xprivacy/PrivacyManager.java b/src/biz/bokhorst/xprivacy/PrivacyManager.java
index aa62dcbc0..c0d114ea1 100644
--- a/src/biz/bokhorst/xprivacy/PrivacyManager.java
+++ b/src/biz/bokhorst/xprivacy/PrivacyManager.java
@@ -1155,6 +1155,9 @@ public static Object getDefacedProp(int uid, String name) {
 		if (name.equals("BTName"))
 			return cDeface;
 
+		if (name.equals("CastID"))
+			return cDeface;
+
 		// Fallback
 		Util.log(null, Log.ERROR, "Fallback value name=" + name);
 		Util.logStack(null, Log.ERROR);
diff --git a/src/biz/bokhorst/xprivacy/XCastDevice.java b/src/biz/bokhorst/xprivacy/XCastDevice.java
new file mode 100644
index 000000000..7c1723dd4
--- /dev/null
+++ b/src/biz/bokhorst/xprivacy/XCastDevice.java
@@ -0,0 +1,56 @@
+package biz.bokhorst.xprivacy;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import android.os.Binder;
+import biz.bokhorst.xprivacy.XHook;
+
+public class XCastDevice extends XHook {
+	private Methods mMethod;
+
+	private XCastDevice(Methods method, String restrictionName) {
+		super(restrictionName, method.name(), "Cast." + method.name());
+		mMethod = method;
+	}
+
+	public String getClassName() {
+		return "com.google.android.gms.cast.CastDevice";
+	}
+
+	// public static getDeviceId()
+	// public Inet4Address getIpAddress()
+	// http://developer.android.com/reference/com/google/android/gms/cast/CastDevice.html
+
+	private enum Methods {
+		getDeviceId, getIpAddress
+	};
+
+	public static List<XHook> getInstances() {
+		List<XHook> listHook = new ArrayList<XHook>();
+		listHook.add(new XCastDevice(Methods.getDeviceId, PrivacyManager.cIdentification));
+		listHook.add(new XCastDevice(Methods.getIpAddress, PrivacyManager.cIdentification));
+		return listHook;
+	}
+
+	@Override
+	protected void before(XParam param) throws Throwable {
+		// Do nothing
+	}
+
+	@Override
+	protected void after(XParam param) throws Throwable {
+		// Do nothing
+		switch (mMethod) {
+		case getDeviceId:
+			if (param.getResult() != null && isRestricted(param))
+				param.setResult(PrivacyManager.getDefacedProp(Binder.getCallingUid(), "CastID"));
+			break;
+
+		case getIpAddress:
+			if (param.getResult() != null && isRestricted(param))
+				param.setResult(PrivacyManager.getDefacedProp(Binder.getCallingUid(), "InetAddress"));
+			break;
+		}
+	}
+}
diff --git a/src/biz/bokhorst/xprivacy/XPrivacy.java b/src/biz/bokhorst/xprivacy/XPrivacy.java
index d53292068..f5c62e347 100644
--- a/src/biz/bokhorst/xprivacy/XPrivacy.java
+++ b/src/biz/bokhorst/xprivacy/XPrivacy.java
@@ -287,6 +287,13 @@ private static void handleLoadPackage(String packageName, ClassLoader classLoade
 		} catch (Throwable ignored) {
 		}
 
+		// Cast device
+		try {
+			Class.forName("com.google.android.gms.cast.CastDevice", false, classLoader);
+			hookAll(XCastDevice.getInstances(), classLoader, secret);
+		} catch (Throwable ignored) {
+		}
+
 		// Google auth
 		try {
 			Class.forName("com.google.android.gms.auth.GoogleAuthUtil", false, classLoader);