Implement IntentFilter verification service.
This commit adds a verifier that verifies a host delegates permission for
an app to handle Url for the host using the Statement protocol.
- Implements the Statement protocol
-- The protocol defines a file format that represents statements.
-- The protocol defines where each asset type should put their statement
declaration. For web asset, the statement file should be hosted at
<scheme>://<host>:<port>/.well-known/associations.json.
- Implements IntentFilterVerificationReceiver, an interface between
StatementService and PackageManager. PackageManager will send a
broadcast with action Intent.ACTION_INTENT_FILTER_NEEDS_VERIFICATION.
The service will process the request and returns the results by calling
PackageManager.verifyIntentFilter().
To verify an IntentFilter like this defined in Android app com.test.app
<intent-filter>
<data android:scheme="https" />
<data android:host="www.test.com" />
<data android:pathPattern=".*"/>
</intent-filter>
The service will try to retrieve the statement file from
https://www.test.com:443/.well-known/associations.json and try to find
a JSON object equivalent to
{'relation': ['delegate_permission/common.handle_all_urls'],
'target': {'namespace': 'android_app',
'package_name': 'com.test.app',
'sha256_cert_fingerprints': [APP_CERT_FP]}}
The entry should have the correct relation, package name, and
certificate sha256 fingerprint.
Because this implementation will send a HTTP request for each host
specified in the intent-filter in AndroidManifest.xml, to avoid overwhelming
the network at app install time, we limit the maximum number of hosts we will
verify for a single app to 10. Any app with more than 10 hosts in the
autoVerify=true intent-filter won't be auto verified.
Change-Id: I787c9d176e4110aa441eb5fe4fa9651a071c6610
diff --git a/packages/StatementService/AndroidManifest.xml b/packages/StatementService/AndroidManifest.xml
new file mode 100644
index 0000000..3ee453b
--- /dev/null
+++ b/packages/StatementService/AndroidManifest.xml
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2015 The Android Open Source Project
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-->
+
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="com.android.statementservice"
+ android:versionCode="1"
+ android:versionName="1.0">
+
+ <uses-permission android:name="android.permission.INTERNET"/>
+ <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
+ <uses-permission android:name="android.permission.INTENT_FILTER_VERIFICATION_AGENT"/>
+
+ <application
+ android:label="@string/service_name"
+ android:allowBackup="false">
+ <service
+ android:name=".DirectStatementService"
+ android:exported="false">
+ <intent-filter>
+ <category android:name="android.intent.category.DEFAULT"/>
+ <action android:name="com.android.statementservice.aosp.service.CHECK_ACTION"/>
+ </intent-filter>
+ </service>
+
+ <receiver
+ android:name=".IntentFilterVerificationReceiver"
+ android:permission="android.permission.BIND_INTENT_FILTER_VERIFIER">
+ <!-- Set the priority 1 so newer implementation can have higher priority. -->
+ <intent-filter
+ android:priority="1">
+ <action android:name="android.intent.action.INTENT_FILTER_NEEDS_VERIFICATION"/>
+ <data android:mimeType="application/vnd.android.package-archive"/>
+ </intent-filter>
+ </receiver>
+
+ </application>
+
+</manifest>
