chinwag-android/app/src/main/java/com/keylesspalace/tusky/MultipartRequest.java

118 lines
4.2 KiB
Java
Raw Normal View History

2017-01-20 19:09:10 +11:00
/* Copyright 2017 Andrew Dawson
*
* This file is part of Tusky.
*
* Tusky is free software: you can redistribute it and/or modify it under the terms of the GNU
* General Public License as published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
* Public License for more details.
*
* You should have received a copy of the GNU General Public License along with Tusky. If not, see
* <http://www.gnu.org/licenses/>. */
package com.keylesspalace.tusky;
import com.android.volley.NetworkResponse;
import com.android.volley.ParseError;
import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.toolbox.HttpHeaderParser;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
class MultipartRequest extends Request<JSONObject> {
private static final String CHARSET = "utf-8";
private final String boundary = "something-" + System.currentTimeMillis();
private JSONObject parameters;
private Response.Listener<JSONObject> listener;
MultipartRequest(int method, String url, JSONObject parameters,
Response.Listener<JSONObject> listener, Response.ErrorListener errorListener) {
super(method, url, errorListener);
this.parameters = parameters;
this.listener = listener;
}
@Override
public String getBodyContentType() {
return "multipart/form-data;boundary=" + boundary;
}
@Override
public byte[] getBody() {
ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
DataOutputStream stream = new DataOutputStream(byteStream);
try {
// Write the JSON parameters first.
if (parameters != null) {
stream.writeBytes(String.format("--%s\r\n", boundary));
stream.writeBytes("Content-Disposition: form-data; name=\"parameters\"\r\n");
stream.writeBytes(String.format(
"Content-Type: application/json; charset=%s\r\n", CHARSET));
stream.writeBytes("\r\n");
stream.writeBytes(parameters.toString());
}
// Write the binary data.
DataItem data = getData();
if (data != null) {
stream.writeBytes(String.format("--%s\r\n", boundary));
stream.writeBytes(String.format(
"Content-Disposition: form-data; name=\"%s\"; filename=\"%s\"\r\n",
data.name, data.filename));
stream.writeBytes(String.format("Content-Type: %s\r\n", data.mimeType));
stream.writeBytes(String.format("Content-Length: %s\r\n",
String.valueOf(data.content.length)));
stream.writeBytes("\r\n");
stream.write(data.content);
}
// Close the multipart form data.
stream.writeBytes(String.format("--%s--\r\n", boundary));
return byteStream.toByteArray();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
@Override
protected Response<JSONObject> parseNetworkResponse(NetworkResponse response) {
try {
String jsonString = new String(response.data,
HttpHeaderParser.parseCharset(response.headers));
return Response.success(new JSONObject(jsonString),
HttpHeaderParser.parseCacheHeaders(response));
} catch (JSONException|UnsupportedEncodingException e) {
return Response.error(new ParseError(e));
}
}
@Override
protected void deliverResponse(JSONObject response) {
listener.onResponse(response);
}
public DataItem getData() {
return null;
}
static class DataItem {
String name;
String filename;
String mimeType;
byte[] content;
}
}