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/*
* 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.
*/
package com.android.messaging.datamodel.media;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import com.android.messaging.Factory;
import com.android.messaging.util.Assert;
import com.android.messaging.util.ContentType;
import com.android.messaging.util.LogUtil;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
/**
* Serves network content URI based image requests.
*/
public class NetworkUriImageRequest<D extends UriImageRequestDescriptor> extends
ImageRequest<D> {
private static final String HEADER_FIELD_LOCATION = "Location";
private static final int REDIRECT_LIMIT = 20;
public NetworkUriImageRequest(Context context, D descriptor) {
super(context, descriptor);
mOrientation = android.media.ExifInterface.ORIENTATION_UNDEFINED;
}
@Override
protected InputStream getInputStreamForResource() throws FileNotFoundException {
Assert.isNotMainThread();
// Since we need to have an open urlConnection to get the stream, but we don't want to keep
// that connection open. There is no good way to perform this method.
return null;
}
@Override
protected boolean isGif() throws FileNotFoundException {
Assert.isNotMainThread();
HttpURLConnection connection = null;
try {
final URL url = new URL(mDescriptor.uri.toString());
connection = (HttpURLConnection) url.openConnection();
connection.connect();
if (connection.getResponseCode() == HttpURLConnection.HTTP_OK) {
return ContentType.IMAGE_GIF.equalsIgnoreCase(connection.getContentType());
}
} catch (MalformedURLException e) {
LogUtil.e(LogUtil.BUGLE_TAG,
"MalformedUrl for image with url: "
+ mDescriptor.uri.toString(), e);
} catch (IOException e) {
LogUtil.e(LogUtil.BUGLE_TAG,
"IOException trying to get inputStream for image with url: "
+ mDescriptor.uri.toString(), e);
} finally {
if (connection != null) {
connection.disconnect();
}
}
return false;
}
@SuppressWarnings("deprecation")
@Override
public Bitmap loadBitmapInternal() throws IOException {
Assert.isNotMainThread();
return retrieveHttpBitmap(mDescriptor.uri.toString(), 0);
}
private Bitmap retrieveHttpBitmap(String path, int depth) {
Bitmap bitmap = null;
HttpURLConnection connection = null;
try {
final URL url = new URL(path);
connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
switch (connection.getResponseCode()) {
case HttpURLConnection.HTTP_OK:
bitmap = BitmapFactory.decodeStream(connection.getInputStream());
break;
case HttpURLConnection.HTTP_MOVED_PERM:
case HttpURLConnection.HTTP_MOVED_TEMP:
if (depth == REDIRECT_LIMIT) {
return null;
}
// Follow redirects.
bitmap = retrieveHttpBitmap(
connection.getHeaderField(HEADER_FIELD_LOCATION), depth + 1);
break;
default:
// Return null Bitmap.
}
} catch (MalformedURLException e) {
LogUtil.e(LogUtil.BUGLE_TAG,
"MalformedUrl for image with url: "
+ mDescriptor.uri.toString(), e);
} catch (final OutOfMemoryError e) {
LogUtil.e(LogUtil.BUGLE_TAG,
"OutOfMemoryError for image with url: "
+ mDescriptor.uri.toString(), e);
Factory.get().reclaimMemory();
} catch (IOException e) {
LogUtil.e(LogUtil.BUGLE_TAG,
"IOException trying to get inputStream for image with url: "
+ mDescriptor.uri.toString(), e);
} finally {
if (connection != null) {
connection.disconnect();
}
}
return bitmap;
}
}
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