// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
/** Content provider for testing content URLs. */
package org.chromium.android_webview.test;
import android.content.ContentProvider;
import android.content.ContentValues;
import android.content.Context;
import android.content.res.AssetFileDescriptor;
import android.database.AbstractCursor;
import android.database.Cursor;
import android.net.Uri;
import android.os.ParcelFileDescriptor;
import android.util.Log;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
// Note: if you move this class, make sure you have also updated AndroidManifest.xml
public class TestContentProvider extends ContentProvider {
private static final String AUTHORITY = "org.chromium.android_webview.test.TestContentProvider";
private static final String CONTENT_SCHEME = "content://";
private static final String CONTENT_IMAGE_TYPE = "image/png";
private static final String CONTENT_IMAGE_TARGET = "image";
private static final String GET_RESOURCE_REQUEST_COUNT = "get_resource_request_count";
private static final String RESET_RESOURCE_REQUEST_COUNT = "reset_resource_request_count";
private static final String TAG = "TestContentProvider";
private static final int EXPECTED_COLUMN_INDEX = 0;
private static final Map<String, String> REGISTERED_CONTENT_TYPE =
new HashMap<String, String>();
private static final Map<String, byte[]> REGISTERED_RESPONSE = new HashMap<String, byte[]>();
private final Map<String, Integer> mResourceRequestCount;
// 1x1 black dot png image.
private static final byte[] IMAGE = {
(byte) 0x89,
0x50,
0x4e,
0x47,
0x0d,
0x0a,
0x1a,
0x0a,
0x00,
0x00,
0x00,
0x0d,
0x49,
0x48,
0x44,
0x52,
0x00,
0x00,
0x00,
0x01,
0x00,
0x00,
0x00,
0x01,
0x08,
0x00,
0x00,
0x00,
0x00,
0x3a,
0x7e,
(byte) 0x9b,
0x55,
0x00,
0x00,
0x00,
0x01,
0x73,
0x52,
0x47,
0x42,
0x00,
(byte) 0xae,
(byte) 0xce,
0x1c,
(byte) 0xe9,
0x00,
0x00,
0x00,
0x0d,
0x49,
0x44,
0x41,
0x54,
0x08,
0x1d,
0x01,
0x02,
0x00,
(byte) 0xfd,
(byte) 0xff,
0x00,
0x00,
0x00,
0x02,
0x00,
0x01,
(byte) 0xcd,
(byte) 0xe3,
(byte) 0xd1,
0x2b,
0x00,
0x00,
0x00,
0x00,
0x49,
0x45,
0x4e,
0x44,
(byte) 0xae,
0x42,
0x60,
(byte) 0x82
};
public static String createContentUrl(String target) {
return CONTENT_SCHEME + AUTHORITY + "/" + target;
}
private static Uri createRequestUri(final String target, String resource) {
return Uri.parse(createContentUrl(target) + "?" + resource);
}
public static int getResourceRequestCount(Context context, String resource) {
Uri uri = createRequestUri(GET_RESOURCE_REQUEST_COUNT, resource);
final Cursor cursor = context.getContentResolver().query(uri, null, null, null, null);
try {
cursor.moveToFirst();
return cursor.getInt(EXPECTED_COLUMN_INDEX);
} finally {
cursor.close();
}
}
public static void resetResourceRequestCount(Context context, String resource) {
Uri uri = createRequestUri(RESET_RESOURCE_REQUEST_COUNT, resource);
// A null cursor is returned for this request.
context.getContentResolver().query(uri, null, null, null, null);
}
public static void register(String target, String contentType, byte[] response) {
REGISTERED_CONTENT_TYPE.put(target, contentType);
REGISTERED_RESPONSE.put(target, response);
}
public TestContentProvider() {
super();
mResourceRequestCount = new HashMap<String, Integer>();
register(CONTENT_IMAGE_TARGET, CONTENT_IMAGE_TYPE, IMAGE);
}
@Override
public boolean onCreate() {
return true;
}
@Override
public AssetFileDescriptor openAssetFile(Uri uri, String mode) {
String target = uri.getLastPathSegment();
if (mResourceRequestCount.containsKey(target)) {
mResourceRequestCount.put(target, mResourceRequestCount.get(target) + 1);
} else {
mResourceRequestCount.put(target, 1);
}
if (REGISTERED_RESPONSE.containsKey(target)) return createResponse(target);
// Default to return the registered image content.
return createResponse(CONTENT_IMAGE_TARGET);
}
@Override
public String getType(Uri uri) {
String target = uri.getLastPathSegment();
if (REGISTERED_CONTENT_TYPE.containsKey(target)) return REGISTERED_CONTENT_TYPE.get(target);
// Default to return the type for the registered image content.
return CONTENT_IMAGE_TYPE;
}
@Override
public int update(Uri uri, ContentValues values, String where, String[] whereArgs) {
return 0;
}
@Override
public int delete(Uri uri, String selection, String[] selectionArgs) {
return 0;
}
@Override
public Uri insert(Uri uri, ContentValues values) {
return null;
}
/** Cursor object for retrieving resource request counters. */
private static class ProviderStateCursor extends AbstractCursor {
private final int mResourceRequestCount;
public ProviderStateCursor(int resourceRequestCount) {
mResourceRequestCount = resourceRequestCount;
}
@Override
public boolean isNull(int columnIndex) {
return columnIndex != EXPECTED_COLUMN_INDEX;
}
@Override
public int getCount() {
return 1;
}
@Override
public int getType(int columnIndex) {
return columnIndex == EXPECTED_COLUMN_INDEX
? Cursor.FIELD_TYPE_INTEGER
: Cursor.FIELD_TYPE_NULL;
}
private void unsupported() {
throw new UnsupportedOperationException();
}
@Override
public double getDouble(int columnIndex) {
unsupported();
return 0.0;
}
@Override
public float getFloat(int columnIndex) {
unsupported();
return 0.0f;
}
@Override
public int getInt(int columnIndex) {
return columnIndex == EXPECTED_COLUMN_INDEX ? mResourceRequestCount : -1;
}
@Override
public short getShort(int columnIndex) {
unsupported();
return 0;
}
@Override
public long getLong(int columnIndex) {
return getInt(columnIndex);
}
@Override
public String getString(int columnIndex) {
unsupported();
return null;
}
@Override
public String[] getColumnNames() {
return new String[] {GET_RESOURCE_REQUEST_COUNT};
}
}
@Override
public Cursor query(
Uri uri,
String[] projection,
String selection,
String[] selectionArgs,
String sortOrder) {
String action = uri.getLastPathSegment();
String resource = uri.getQuery();
if (GET_RESOURCE_REQUEST_COUNT.equals(action)) {
return new ProviderStateCursor(
mResourceRequestCount.containsKey(resource)
? mResourceRequestCount.get(resource)
: 0);
} else if (RESET_RESOURCE_REQUEST_COUNT.equals(action)) {
mResourceRequestCount.put(resource, 0);
}
return null;
}
private static AssetFileDescriptor createResponse(String target) {
ParcelFileDescriptor[] pfds = null;
FileOutputStream fileOut = null;
try {
try {
pfds = ParcelFileDescriptor.createPipe();
fileOut = new FileOutputStream(pfds[1].getFileDescriptor());
fileOut.write(REGISTERED_RESPONSE.get(target));
fileOut.flush();
return new AssetFileDescriptor(pfds[0], 0, -1);
} finally {
if (fileOut != null) fileOut.close();
if (pfds != null && pfds[1] != null) pfds[1].close();
}
} catch (IOException e) {
Log.e(TAG, e.getMessage(), e);
}
return null;
}
}
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