mirror of https://github.com/NekoX-Dev/NekoX.git
244 lines
9.5 KiB
Java
244 lines
9.5 KiB
Java
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.telegram.android.volley.toolbox;
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import org.apache.http.Header;
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import org.apache.http.HttpEntity;
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import org.apache.http.HttpResponse;
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import org.apache.http.ProtocolVersion;
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import org.apache.http.StatusLine;
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import org.apache.http.entity.BasicHttpEntity;
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import org.apache.http.message.BasicHeader;
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import org.apache.http.message.BasicHttpResponse;
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import org.apache.http.message.BasicStatusLine;
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import org.telegram.android.volley.AuthFailureError;
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import org.telegram.android.volley.Request;
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import java.io.DataOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.HttpURLConnection;
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import java.net.URL;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import java.util.Map.Entry;
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import javax.net.ssl.HttpsURLConnection;
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import javax.net.ssl.SSLSocketFactory;
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/**
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* An {@link org.telegram.android.volley.toolbox.HttpStack} based on {@link HttpURLConnection}.
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*/
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public class HurlStack implements HttpStack {
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private static final String HEADER_CONTENT_TYPE = "Content-Type";
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/**
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* An interface for transforming URLs before use.
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*/
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public interface UrlRewriter {
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/**
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* Returns a URL to use instead of the provided one, or null to indicate
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* this URL should not be used at all.
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*/
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String rewriteUrl(String originalUrl);
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}
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private final UrlRewriter mUrlRewriter;
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private final SSLSocketFactory mSslSocketFactory;
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public HurlStack() {
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this(null);
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}
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/**
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* @param urlRewriter Rewriter to use for request URLs
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*/
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public HurlStack(UrlRewriter urlRewriter) {
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this(urlRewriter, null);
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}
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/**
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* @param urlRewriter Rewriter to use for request URLs
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* @param sslSocketFactory SSL factory to use for HTTPS connections
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*/
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public HurlStack(UrlRewriter urlRewriter, SSLSocketFactory sslSocketFactory) {
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mUrlRewriter = urlRewriter;
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mSslSocketFactory = sslSocketFactory;
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}
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@Override
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public HttpResponse performRequest(Request<?> request, Map<String, String> additionalHeaders)
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throws IOException, AuthFailureError {
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String url = request.getUrl();
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HashMap<String, String> map = new HashMap<String, String>();
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map.putAll(request.getHeaders());
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map.putAll(additionalHeaders);
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if (mUrlRewriter != null) {
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String rewritten = mUrlRewriter.rewriteUrl(url);
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if (rewritten == null) {
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throw new IOException("URL blocked by rewriter: " + url);
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}
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url = rewritten;
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}
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URL parsedUrl = new URL(url);
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HttpURLConnection connection = openConnection(parsedUrl, request);
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for (String headerName : map.keySet()) {
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connection.addRequestProperty(headerName, map.get(headerName));
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}
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setConnectionParametersForRequest(connection, request);
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// Initialize HttpResponse with data from the HttpURLConnection.
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ProtocolVersion protocolVersion = new ProtocolVersion("HTTP", 1, 1);
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int responseCode = connection.getResponseCode();
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if (responseCode == -1) {
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// -1 is returned by getResponseCode() if the response code could not be retrieved.
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// Signal to the caller that something was wrong with the connection.
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throw new IOException("Could not retrieve response code from HttpUrlConnection.");
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}
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StatusLine responseStatus = new BasicStatusLine(protocolVersion,
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connection.getResponseCode(), connection.getResponseMessage());
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BasicHttpResponse response = new BasicHttpResponse(responseStatus);
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response.setEntity(entityFromConnection(connection));
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for (Entry<String, List<String>> header : connection.getHeaderFields().entrySet()) {
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if (header.getKey() != null) {
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Header h = new BasicHeader(header.getKey(), header.getValue().get(0));
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response.addHeader(h);
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}
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}
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return response;
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}
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/**
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* Initializes an {@link HttpEntity} from the given {@link HttpURLConnection}.
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* @param connection
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* @return an HttpEntity populated with data from <code>connection</code>.
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*/
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private static HttpEntity entityFromConnection(HttpURLConnection connection) {
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BasicHttpEntity entity = new BasicHttpEntity();
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InputStream inputStream;
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try {
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inputStream = connection.getInputStream();
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} catch (IOException ioe) {
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inputStream = connection.getErrorStream();
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}
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entity.setContent(inputStream);
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entity.setContentLength(connection.getContentLength());
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entity.setContentEncoding(connection.getContentEncoding());
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entity.setContentType(connection.getContentType());
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return entity;
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}
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/**
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* Create an {@link HttpURLConnection} for the specified {@code url}.
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*/
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protected HttpURLConnection createConnection(URL url) throws IOException {
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return (HttpURLConnection) url.openConnection();
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}
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/**
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* Opens an {@link HttpURLConnection} with parameters.
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* @param url
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* @return an open connection
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* @throws IOException
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*/
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private HttpURLConnection openConnection(URL url, Request<?> request) throws IOException {
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HttpURLConnection connection = createConnection(url);
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int timeoutMs = request.getTimeoutMs();
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connection.setConnectTimeout(timeoutMs);
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connection.setReadTimeout(timeoutMs);
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connection.setUseCaches(false);
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connection.setDoInput(true);
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// use caller-provided custom SslSocketFactory, if any, for HTTPS
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if ("https".equals(url.getProtocol()) && mSslSocketFactory != null) {
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((HttpsURLConnection)connection).setSSLSocketFactory(mSslSocketFactory);
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}
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return connection;
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}
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@SuppressWarnings("deprecation")
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/* package */ static void setConnectionParametersForRequest(HttpURLConnection connection,
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Request<?> request) throws IOException, AuthFailureError {
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switch (request.getMethod()) {
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case Request.Method.DEPRECATED_GET_OR_POST:
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// This is the deprecated way that needs to be handled for backwards compatibility.
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// If the request's post body is null, then the assumption is that the request is
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// GET. Otherwise, it is assumed that the request is a POST.
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byte[] postBody = request.getPostBody();
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if (postBody != null) {
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// Prepare output. There is no need to set Content-Length explicitly,
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// since this is handled by HttpURLConnection using the size of the prepared
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// output stream.
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connection.setDoOutput(true);
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connection.setRequestMethod("POST");
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connection.addRequestProperty(HEADER_CONTENT_TYPE,
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request.getPostBodyContentType());
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DataOutputStream out = new DataOutputStream(connection.getOutputStream());
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out.write(postBody);
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out.close();
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}
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break;
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case Request.Method.GET:
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// Not necessary to set the request method because connection defaults to GET but
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// being explicit here.
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connection.setRequestMethod("GET");
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break;
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case Request.Method.DELETE:
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connection.setRequestMethod("DELETE");
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break;
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case Request.Method.POST:
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connection.setRequestMethod("POST");
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addBodyIfExists(connection, request);
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break;
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case Request.Method.PUT:
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connection.setRequestMethod("PUT");
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addBodyIfExists(connection, request);
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break;
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case Request.Method.HEAD:
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connection.setRequestMethod("HEAD");
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break;
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case Request.Method.OPTIONS:
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connection.setRequestMethod("OPTIONS");
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break;
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case Request.Method.TRACE:
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connection.setRequestMethod("TRACE");
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break;
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case Request.Method.PATCH:
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connection.setRequestMethod("PATCH");
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addBodyIfExists(connection, request);
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break;
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default:
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throw new IllegalStateException("Unknown method type.");
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}
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}
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private static void addBodyIfExists(HttpURLConnection connection, Request<?> request)
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throws IOException, AuthFailureError {
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byte[] body = request.getBody();
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if (body != null) {
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connection.setDoOutput(true);
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connection.addRequestProperty(HEADER_CONTENT_TYPE, request.getBodyContentType());
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DataOutputStream out = new DataOutputStream(connection.getOutputStream());
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out.write(body);
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out.close();
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}
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}
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}
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