From 90aacc868d1a20e477f934a5bfdb10bb29846d93 Mon Sep 17 00:00:00 2001
From: Jeff Sharkey <jsharkey@android.com>
Date: Mon, 19 Aug 2013 14:47:58 -0700
Subject: Trampoline APK installation to use raw file.

PackageInstaller requires raw file:// Uris, and refuses to accept
content:// Uris, so create a trampoline that uses the raw file and
also splices in referrer extras.

Bug: 10391254
Change-Id: I12a06862069479de5dee140d0065479ce79eb494
---
 AndroidManifest.xml                                | 14 ++++++++
 .../downloads/DownloadStorageProvider.java         |  2 +-
 .../providers/downloads/TrampolineActivity.java    | 41 ++++++++++++++++++++++
 3 files changed, 56 insertions(+), 1 deletion(-)
 create mode 100644 src/com/android/providers/downloads/TrampolineActivity.java

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 49f039ef..cd8aec5f 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -106,5 +106,19 @@
         <activity android:name=".SizeLimitActivity"
                   android:launchMode="singleTask"
                   android:theme="@style/Theme.Translucent"/>
+
+        <!-- PackageInstaller really wants raw files -->
+        <activity
+            android:name=".TrampolineActivity"
+            android:theme="@android:style/Theme.NoDisplay">
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data
+                    android:scheme="content"
+                    android:host="com.android.providers.downloads.documents"
+                    android:mimeType="application/vnd.android.package-archive" />
+            </intent-filter>
+        </activity>
     </application>
 </manifest>
diff --git a/src/com/android/providers/downloads/DownloadStorageProvider.java b/src/com/android/providers/downloads/DownloadStorageProvider.java
index f66f5260..b606e652 100644
--- a/src/com/android/providers/downloads/DownloadStorageProvider.java
+++ b/src/com/android/providers/downloads/DownloadStorageProvider.java
@@ -260,7 +260,7 @@ public class DownloadStorageProvider extends ContentProvider {
         }
     }
 
-    private long getDownloadFromDocument(String docId) {
+    public static long getDownloadFromDocument(String docId) {
         return Long.parseLong(docId.substring(docId.indexOf(':') + 1));
     }
 
diff --git a/src/com/android/providers/downloads/TrampolineActivity.java b/src/com/android/providers/downloads/TrampolineActivity.java
new file mode 100644
index 00000000..a1e99161
--- /dev/null
+++ b/src/com/android/providers/downloads/TrampolineActivity.java
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2013 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.
+ */
+
+package com.android.providers.downloads;
+
+import android.app.Activity;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.provider.DocumentsContract;
+
+/**
+ * PackageInstaller really wants raw files.
+ */
+public class TrampolineActivity extends Activity {
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        final Uri documentUri = getIntent().getData();
+        final String docId = DocumentsContract.getDocId(documentUri);
+        final long downloadId = DownloadStorageProvider.getDownloadFromDocument(docId);
+
+        final Intent intent = OpenHelper.buildViewIntent(this, downloadId);
+        startActivity(intent);
+        finish();
+    }
+}
-- 
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