com.pubnub.api.HttpClientCore Maven / Gradle / Ivy
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PubNub is a cross-platform client-to-client (1:1 and 1:many) push service in the cloud, capable of broadcasting real-time messages to millions of web and mobile clients simultaneously, in less than a quarter second!
package com.pubnub.api;
import java.io.ByteArrayOutputStream;
import java.util.zip.GZIPInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.ProtocolException;
import java.net.SocketTimeoutException;
import java.net.URL;
import java.util.Enumeration;
import java.util.Hashtable;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import com.pubnub.api.PubnubException;
import static com.pubnub.api.PubnubError.*;
class HttpClientCore extends HttpClient {
private int requestTimeout = 310000;
private int connectionTimeout = 5000;
HttpURLConnection connection;
protected static Logger log = new Logger(Worker.class);
private void init() {
HttpURLConnection.setFollowRedirects(true);
}
public HttpClientCore(int connectionTimeout, int requestTimeout, Hashtable headers) {
init();
this.setRequestTimeout(requestTimeout);
this.setConnectionTimeout(connectionTimeout);
this._headers = headers;
}
public int getRequestTimeout() {
return requestTimeout;
}
public void setRequestTimeout(int requestTimeout) {
this.requestTimeout = requestTimeout;
}
public int getConnectionTimeout() {
return connectionTimeout;
}
public void setConnectionTimeout(int connectionTimeout) {
this.connectionTimeout = connectionTimeout;
}
public boolean isRedirect(int rc) {
return (rc == HttpURLConnection.HTTP_MOVED_PERM
|| rc == HttpURLConnection.HTTP_MOVED_TEMP || rc == HttpURLConnection.HTTP_SEE_OTHER);
}
public boolean checkResponse(int rc) {
return (rc == HttpURLConnection.HTTP_OK || isRedirect(rc));
}
public boolean checkResponseSuccess(int rc) {
return (rc == HttpURLConnection.HTTP_OK);
}
private static String readInput(InputStream in) throws IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
byte bytes[] = new byte[1024];
int n = in.read(bytes);
while (n != -1) {
out.write(bytes, 0, n);
n = in.read(bytes);
}
return new String(out.toString());
}
public HttpResponse fetch(String url) throws PubnubException, SocketTimeoutException {
return fetch(url, null);
}
public synchronized HttpResponse fetch(String url, Hashtable headers)
throws PubnubException, SocketTimeoutException {
URL urlobj = null;
log.verbose("FETCHING URL : " + url);
try {
urlobj = new URL(url);
} catch (MalformedURLException e3) {
throw new PubnubException(getErrorObject(PNERROBJ_MALFORMED_URL,url));
}
try {
connection = (HttpURLConnection) urlobj.openConnection();
} catch (IOException e2) {
throw new PubnubException(getErrorObject(PNERROBJ_URL_OPEN, url));
}
try {
connection.setRequestMethod("GET");
} catch (ProtocolException e1) {
throw new PubnubException(PNERROBJ_PROTOCOL_EXCEPTION);
}
if (_headers != null) {
Enumeration en = _headers.keys();
while (en.hasMoreElements()) {
String key = (String) en.nextElement();
String val = (String) _headers.get(key);
connection.addRequestProperty(key, val);
}
}
if (headers != null) {
Enumeration en = headers.keys();
while (en.hasMoreElements()) {
String key = (String) en.nextElement();
String val = (String) headers.get(key);
connection.addRequestProperty(key, val);
}
}
connection.setReadTimeout(requestTimeout);
connection.setConnectTimeout(connectionTimeout);
/*
try {
connection.connect();
} catch (SocketTimeoutException e) {
throw e;
} catch (IOException e) {
throw new PubnubException(getErrorObject(PNERROBJ_CONNECT_EXCEPTION, url + " : " + e.toString()));
}
*/
int rc = HttpURLConnection.HTTP_INTERNAL_ERROR;
try {
rc = connection.getResponseCode();
} catch (SocketTimeoutException ste) {
throw ste;
}
catch (IOException e) {
throw new PubnubException(getErrorObject(PNERROBJ_HTTP_RC_ERROR, url + " : " + e.toString()));
}
InputStream is = null;
String encoding = connection.getContentEncoding();
if (encoding == null || !encoding.equals("gzip")) {
try {
is = connection.getInputStream();
} catch (IOException e) {
if (rc == HttpURLConnection.HTTP_OK)
throw new PubnubException(getErrorObject(PNERROBJ_GETINPUTSTREAM, 1, url));
is = connection.getErrorStream();
}
} else {
try {
is = new GZIPInputStream(connection.getInputStream());
} catch (IOException e) {
if (rc == HttpURLConnection.HTTP_OK)
throw new PubnubException(getErrorObject(PNERROBJ_GETINPUTSTREAM, 2, url));
is = connection.getErrorStream();
}
}
String page = null;
try {
page = readInput(is);
} catch (IOException e) {
throw new PubnubException(getErrorObject(PNERROBJ_READINPUT, url));
}
if (is != null) {
try {
is.close();
} catch (IOException e) {
}
}
log.verbose("URL = " + url + ", Status Code : " + rc + ", : RESPONSE = " + page);
switch (rc) {
case HttpURLConnection.HTTP_FORBIDDEN:
{
JSONObject payload = null;
String message = null;
try {
JSONObject pageJso = new JSONObject(page);
message = pageJso.getString("message");
payload = pageJso.getJSONObject("payload");
throw new PubnubException(getErrorObject(PNERROBJ_FORBIDDEN, message, payload));
} catch (JSONException e2) {}
throw new PubnubException(getErrorObject(PNERROBJ_FORBIDDEN, page));
}
case HttpURLConnection.HTTP_UNAUTHORIZED:
{
JSONObject payload = null;
String message = null;
try {
JSONObject pageJso = new JSONObject(page);
message = pageJso.getString("message");
payload = pageJso.getJSONObject("payload");
throw new PubnubException(getErrorObject(PNERROBJ_FORBIDDEN, message, payload));
} catch (JSONException e2) {}
throw new PubnubException(getErrorObject(PNERROBJ_UNAUTHORIZED, page));
}
case HttpURLConnection.HTTP_BAD_REQUEST:
{
JSONObject payload = null;
String message = null;
try {
JSONObject pageJso = new JSONObject(page);
message = pageJso.getString("message");
payload = pageJso.getJSONObject("payload");
throw new PubnubException(getErrorObject(PNERROBJ_BAD_REQUEST, message, payload));
} catch (JSONException e2) {}
throw new PubnubException(getErrorObject(PNERROBJ_BAD_REQUEST, page));
}
case HttpURLConnection.HTTP_NOT_FOUND:
{
JSONObject payload = null;
String message = null;
try {
JSONObject pageJso = new JSONObject(page);
message = pageJso.getString("message");
payload = pageJso.getJSONObject("payload");
throw new PubnubException(getErrorObject(PNERROBJ_BAD_REQUEST, message, payload));
} catch (JSONException e2) {}
throw new PubnubException(getErrorObject(PNERROBJ_NOT_FOUND_ERROR, page));
}
case HttpURLConnection.HTTP_BAD_GATEWAY:
throw new PubnubException(getErrorObject(PNERROBJ_BAD_GATEWAY, url));
case HttpURLConnection.HTTP_CLIENT_TIMEOUT:
throw new PubnubException(getErrorObject(PNERROBJ_CLIENT_TIMEOUT, url));
case HttpURLConnection.HTTP_GATEWAY_TIMEOUT:
throw new PubnubException(getErrorObject(PNERROBJ_GATEWAY_TIMEOUT, url));
case HttpURLConnection.HTTP_INTERNAL_ERROR:
throw new PubnubException(getErrorObject(PNERROBJ_INTERNAL_ERROR, url + " : " + rc));
default:
break;
}
return new HttpResponse(rc, page);
}
public boolean isOk(int rc) {
return (rc == HttpURLConnection.HTTP_OK);
}
public void shutdown() {
if (connection != null) {
try {
connection.disconnect();
} catch (Exception e) {
}
}
}
}