Send ORIGINATING_URI and REFERRER to installer.

When building PackageInstaller intents, include ORIGINATING_URI and
REFERRER extras.  Unify view intent building for both notifications
and list UI.

Bug: 6900672
Change-Id: I18435e0f8aa549880ec594f82b6a250232706135

1 files changed, 105 insertions, 0 deletions

diff --git a/src/com/android/providers/downloads/OpenHelper.java b/src/com/android/providers/downloads/OpenHelper.java
new file mode 100644
index 00000000..0151c8de
--- /dev/null
+++ b/src/com/android/providers/downloads/OpenHelper.java
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2012 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 static android.app.DownloadManager.COLUMN_LOCAL_URI;
+import static android.app.DownloadManager.COLUMN_MEDIA_TYPE;
+import static android.app.DownloadManager.COLUMN_URI;
+import static android.provider.Downloads.Impl.ALL_DOWNLOADS_CONTENT_URI;
+
+import android.app.DownloadManager;
+import android.content.ContentUris;
+import android.content.Context;
+import android.content.Intent;
+import android.database.Cursor;
+import android.net.Uri;
+import android.provider.Downloads.Impl.RequestHeaders;
+
+public class OpenHelper {
+    /**
+     * Build an {@link Intent} to view the download at current {@link Cursor}
+     * position, handling subtleties around installing packages.
+     */
+    public static Intent buildViewIntent(Context context, long id) {
+        final DownloadManager downManager = (DownloadManager) context.getSystemService(
+                Context.DOWNLOAD_SERVICE);
+        downManager.setAccessAllDownloads(true);
+
+        final Cursor cursor = downManager.query(new DownloadManager.Query().setFilterById(id));
+        try {
+            if (!cursor.moveToFirst()) {
+                throw new IllegalArgumentException("Missing download " + id);
+            }
+
+            final Uri localUri = getCursorUri(cursor, COLUMN_LOCAL_URI);
+            final String mimeType = getCursorString(cursor, COLUMN_MEDIA_TYPE);
+
+            final Intent intent = new Intent(Intent.ACTION_VIEW);
+            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_GRANT_READ_URI_PERMISSION);
+
+            if ("application/vnd.android.package-archive".equals(mimeType)) {
+                // PackageInstaller doesn't like content URIs, so open file
+                intent.setDataAndType(localUri, mimeType);
+
+                // Also splice in details about where it came from
+                final Uri remoteUri = getCursorUri(cursor, COLUMN_URI);
+                intent.putExtra(Intent.EXTRA_ORIGINATING_URI, remoteUri);
+                intent.putExtra(Intent.EXTRA_REFERRER, getRefererUri(context, id));
+            } else if ("file".equals(localUri.getScheme())) {
+                intent.setDataAndType(
+                        ContentUris.withAppendedId(ALL_DOWNLOADS_CONTENT_URI, id), mimeType);
+            } else {
+                intent.setDataAndType(localUri, mimeType);
+            }
+
+            return intent;
+        } finally {
+            cursor.close();
+        }
+    }
+
+    private static Uri getRefererUri(Context context, long id) {
+        final Uri headersUri = Uri.withAppendedPath(
+                ContentUris.withAppendedId(ALL_DOWNLOADS_CONTENT_URI, id),
+                RequestHeaders.URI_SEGMENT);
+        final Cursor headers = context.getContentResolver()
+                .query(headersUri, null, null, null, null);
+        try {
+            while (headers.moveToNext()) {
+                final String header = getCursorString(headers, RequestHeaders.COLUMN_HEADER);
+                if ("Referer".equalsIgnoreCase(header)) {
+                    return getCursorUri(headers, RequestHeaders.COLUMN_VALUE);
+                }
+            }
+        } finally {
+            headers.close();
+        }
+        return null;
+    }
+
+    private static String getCursorString(Cursor cursor, String column) {
+        return cursor.getString(cursor.getColumnIndexOrThrow(column));
+    }
+
+    private static Uri getCursorUri(Cursor cursor, String column) {
+        return Uri.parse(getCursorString(cursor, column));
+    }
+
+    private static long getCursorLong(Cursor cursor, String column) {
+        return cursor.getLong(cursor.getColumnIndexOrThrow(column));
+    }
+}