/*
* JBoss, Home of Professional Open Source.
* Copyright (c) 2011, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.test.integration.common;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.nio.charset.StandardCharsets;
import java.util.Base64;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
/**
* @author <a href="mailto:cdewolf@redhat.com">Carlo de Wolf</a>
*/
public class HttpRequest {
private static String execute(final Callable<String> task, final long timeout, final TimeUnit unit) throws TimeoutException, IOException {
final ExecutorService executor = Executors.newSingleThreadExecutor();
final Future<String> result = executor.submit(task);
try {
return result.get(timeout, unit);
} catch (TimeoutException e) {
result.cancel(true);
throw e;
} catch (InterruptedException e) {
// should not happen
throw new RuntimeException(e);
} catch (ExecutionException e) {
// by virtue of the Callable redefinition above I can cast
throw new IOException(e);
} finally {
executor.shutdownNow();
try {
executor.awaitTermination(timeout, unit);
} catch (InterruptedException e) {
// ignore
}
}
}
public static String get(final String spec, final long timeout, final TimeUnit unit) throws IOException, ExecutionException, TimeoutException {
final URL url = new URL(spec);
Callable<String> task = new Callable<String>() {
@Override
public String call() throws Exception {
final HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
return processResponse(conn);
}
};
return execute(task, timeout, unit);
}
/**
* Returns the URL response as a string.
*
* @param spec URL spec
* @param waitUntilAvailableMs maximum timeout in milliseconds to wait for the URL to return non 404 response
* @param responseTimeout the timeout to read the response
* @param responseTimeoutUnit the time unit for responseTimeout
* @return URL response
* @throws IOException
* @throws ExecutionException
* @throws TimeoutException
*/
public static String get(final String spec, final long waitUntilAvailableMs, final long responseTimeout, final TimeUnit responseTimeoutUnit) throws IOException, ExecutionException, TimeoutException {
final URL url = new URL(spec);
Callable<String> task = new Callable<String>() {
@Override
public String call() throws Exception {
final long startTime = System.currentTimeMillis();
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
while(conn.getResponseCode() == HttpURLConnection.HTTP_NOT_FOUND) {
if(System.currentTimeMillis() - startTime >= waitUntilAvailableMs) {
break;
}
try {
Thread.sleep(500);
} catch(InterruptedException e) {
break;
} finally {
conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
}
}
return processResponse(conn);
}
};
return execute(task, responseTimeout, responseTimeoutUnit);
}
public static String get(final String spec, final String username, final String password, final long timeout, final TimeUnit unit) throws IOException, TimeoutException {
final URL url = new URL(spec);
Callable<String> task = new Callable<String>() {
@Override
public String call() throws IOException {
final HttpURLConnection conn = (HttpURLConnection) url.openConnection();
if (username != null) {
final String userpassword = username + ":" + password;
final String basicAuthorization = Base64.getEncoder().encodeToString(userpassword.getBytes(StandardCharsets.UTF_8));
conn.setRequestProperty("Authorization", "Basic " + basicAuthorization);
}
conn.setDoInput(true);
return processResponse(conn);
}
};
return execute(task, timeout, unit);
}
private static String read(final InputStream in) throws IOException {
final ByteArrayOutputStream out = new ByteArrayOutputStream();
int b;
while((b = in.read()) != -1) {
out.write(b);
}
return out.toString();
}
private static String processResponse(HttpURLConnection conn) throws IOException {
int responseCode = conn.getResponseCode();
if (responseCode != HttpURLConnection.HTTP_OK) {
final InputStream err = conn.getErrorStream();
try {
String response = err != null ? read(err) : null;
throw new IOException(String.format("HTTP Status %d Response: %s", responseCode, response));
}
finally {
if (err != null) {
err.close();
}
}
}
final InputStream in = conn.getInputStream();
try {
return read(in);
}
finally {
in.close();
}
}
public static String put(final String spec, final String message, final long timeout, final TimeUnit unit) throws MalformedURLException, ExecutionException, TimeoutException {
return execRequestMethod(spec, message, timeout, unit, "PUT");
}
/**
* Executes an HTTP request to write the specified message.
*
* @param spec The {@link URL} in String form
* @param message Message to write
* @param timeout Timeout value
* @param unit Timeout units
* @param requestMethod Name of the HTTP method to execute (ie. HEAD, GET, POST)
* @return
* @throws MalformedURLException
* @throws ExecutionException
* @throws TimeoutException
*/
private static String execRequestMethod(final String spec, final String message, final long timeout, final TimeUnit unit, final String requestMethod) throws MalformedURLException, ExecutionException, TimeoutException {
if(requestMethod==null||requestMethod.isEmpty()){
throw new IllegalArgumentException("Request Method must be specified (ie. GET, PUT, DELETE etc)");
}
final URL url = new URL(spec);
Callable<String> task = new Callable<String>() {
@Override
public String call() throws Exception {
final HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoInput(true);
conn.setDoOutput(true);
conn.setRequestMethod(requestMethod);
final OutputStream out = conn.getOutputStream();
try {
write(out, message);
return processResponse(conn);
}
finally {
out.close();
}
}
};
try {
return execute(task, timeout, unit);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public static String post(final String spec, final String message, final long timeout, final TimeUnit unit) throws MalformedURLException, ExecutionException, TimeoutException {
return execRequestMethod(spec, message, timeout, unit, "POST");
}
public static String delete(final String spec, final String message, final long timeout, final TimeUnit unit) throws MalformedURLException, ExecutionException, TimeoutException {
return execRequestMethod(spec, message, timeout, unit, "DELETE");
}
public static String head(final String spec, final String message, final long timeout, final TimeUnit unit) throws MalformedURLException, ExecutionException, TimeoutException {
return execRequestMethod(spec, message, timeout, unit, "HEAD");
}
private static void write(OutputStream out, String message) throws IOException {
final OutputStreamWriter writer = new OutputStreamWriter(out, StandardCharsets.UTF_8);
writer.write(message);
writer.flush();
}
}