package fast.rocket.http;
import android.text.TextUtils;
import fast.rocket.error.AuthFailureError;
import fast.rocket.request.Request;
import fast.rocket.request.Request.Method;
import fast.rocket.request.filecore.MultiPartRequest;
import fast.rocket.request.filecore.MultiPartRequest.MultiPartParam;
import java.io.BufferedInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.ProtocolException;
import java.net.Proxy;
import java.net.URL;
import java.util.*;
import java.util.Map.Entry;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.ProtocolVersion;
import org.apache.http.StatusLine;
import org.apache.http.entity.BasicHttpEntity;
import org.apache.http.message.BasicHeader;
import org.apache.http.message.BasicHttpResponse;
import org.apache.http.message.BasicStatusLine;
/**
* An {@link HttpStack} based on {@link HttpURLConnection}.
*/
public class HurlStack implements HttpStack {
/** The Constant HEADER_CONTENT_TYPE. */
private static final String HEADER_CONTENT_TYPE = "Content-Type";
private static final String HEADER_CONTENT_DISPOSITION = "Content-Disposition";
private static final String HEADER_CONTENT_TRANSFER_ENCODING = "Content-Transfer-Encoding";
private static final String CONTENT_TYPE_MULTIPART = "multipart/form-data; charset=%s; boundary=%s";
private static final String BINARY = "binary";
private static final String CRLF = "\r\n";
private static final String FORM_DATA = "form-data; name=\"%s\"";
private static final String BOUNDARY_PREFIX = "--";
private static final String CONTENT_TYPE_OCTET_STREAM = "application/octet-stream";
private static final String FILENAME = "filename=%s";
private static final String COLON_SPACE = ": ";
private static final String SEMICOLON_SPACE = "; ";
/** The Constant HEADER_SET_COOKIE. */
private static final String HEADER_SET_COOKIE = "Set-Cookie";
/** The Constant HEADER_COOKIE. */
private static final String HEADER_COOKIE = "Cookie";
/** Not verify the host. */
final static HostnameVerifier notVerify = new HostnameVerifier() {
public boolean verify(String hostname, SSLSession session) {
return true;
}
};
/** Trust all certifications. */
final static TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
public java.security.cert.X509Certificate[] getAcceptedIssuers() {
return new java.security.cert.X509Certificate[] {};
}
public void checkClientTrusted(
java.security.cert.X509Certificate[] certs, String authType) {
}
public void checkServerTrusted(
java.security.cert.X509Certificate[] certs, String authType) {
}
} };
/**
* An interface for transforming URLs before use.
*/
public interface UrlRewriter {
/**
* Returns a URL to use instead of the provided one, or null to indicate
* this URL should not be used at all.
*
* @param originalUrl the original url
* @return the string
*/
public String rewriteUrl(String originalUrl);
}
/** The m url rewriter. */
private final UrlRewriter mUrlRewriter;
/** The cookie. */
private String cookie;
/**
* Instantiates a new hurl stack.
*/
public HurlStack() {
this(null);
}
/**
* Instantiates a new hurl stack.
*
* @param urlRewriter Rewriter to use for request URLs
*/
public HurlStack(UrlRewriter urlRewriter) {
mUrlRewriter = urlRewriter;
}
/* (non-Javadoc)
* @see fast.rocket.http.HttpStack#performRequest(fast.rocket.Request, java.util.Map)
*/
@Override
public HttpResponse performRequest(Request<?> request, Map<String, String> additionalHeaders)
throws IOException, AuthFailureError {
String url = request.getUrl();
HashMap<String, String> map = new HashMap<String, String>();
map.putAll(request.getHeaders());
map.putAll(additionalHeaders);
if (mUrlRewriter != null) {
String rewritten = mUrlRewriter.rewriteUrl(url);
if (rewritten == null) {
throw new IOException("URL blocked by rewriter: " + url);
}
url = rewritten;
}
if (null != url && url.startsWith("https")) {
trustAllHosts();
request.setSSLRequest(true);
}
URL parsedUrl = new URL(url);
HttpURLConnection connection = openConnection(parsedUrl, request);
for (String headerName : map.keySet()) {
connection.addRequestProperty(headerName, map.get(headerName));
}
if (request.isCookieEnabled()) {
setConnectionCookie(connection, this.cookie);
}
if (request instanceof MultiPartRequest) {
setConnectionParametersForMultipartRequest(connection, request, map);
} else {
setConnectionParametersForRequest(connection, request);
}
// Initialize HttpResponse with data from the HttpURLConnection.
ProtocolVersion protocolVersion = new ProtocolVersion("HTTP", 1, 1);
int responseCode = connection.getResponseCode();
if (responseCode == -1) {
// -1 is returned by getResponseCode() if the response code could not be retrieved.
// Signal to the caller that something was wrong with the connection.
throw new IOException("Could not retrieve response code from HttpUrlConnection.");
}
StatusLine responseStatus = new BasicStatusLine(protocolVersion,
connection.getResponseCode(), connection.getResponseMessage());
BasicHttpResponse response = new BasicHttpResponse(responseStatus);
response.setEntity(entityFromConnection(connection));
if (request.isCookieEnabled()) {
storeConnectionCookie(connection, request);
}
for (Entry<String, List<String>> header : connection.getHeaderFields().entrySet()) {
if (header.getKey() != null) {
Header h = new BasicHeader(header.getKey(), header.getValue().get(0));
response.addHeader(h);
}
}
return response;
}
/**
* Initializes an {@link HttpEntity} from the given {@link HttpURLConnection}.
*
* @param connection the connection
* @return an HttpEntity populated with data from <code>connection</code>.
*/
private static HttpEntity entityFromConnection(HttpURLConnection connection) {
BasicHttpEntity entity = new BasicHttpEntity();
InputStream inputStream;
try {
inputStream = connection.getInputStream();
} catch (IOException ioe) {
inputStream = connection.getErrorStream();
}
entity.setContent(inputStream);
entity.setContentLength(connection.getContentLength());
entity.setContentEncoding(connection.getContentEncoding());
entity.setContentType(connection.getContentType());
return entity;
}
/**
* Create an {@link HttpURLConnection} for the specified {@code url}.
*
* @param url the url
* @return the http url connection
* @throws IOException Signals that an I/O exception has occurred.
*/
protected HttpURLConnection createConnection(URL url) throws IOException {
Proxy proxy = getProxy();
if (proxy != null)
return (HttpURLConnection) url.openConnection(proxy);
else
return (HttpURLConnection) url.openConnection();
}
/**
* Opens an {@link HttpURLConnection} with parameters.
*
* @param url the url
* @param request the request
* @return an open connection
* @throws IOException Signals that an I/O exception has occurred.
*/
private HttpURLConnection openConnection(URL url, Request<?> request) throws IOException {
HttpURLConnection connection = createConnection(url);
int timeoutMs = request.getTimeoutMs();
connection.setConnectTimeout(timeoutMs);
connection.setReadTimeout(timeoutMs);
connection.setUseCaches(false);
connection.setDoInput(true);
return connection;
}
/**
* Set trust all https hosts.
*/
private static void trustAllHosts() {
try {
HttpsURLConnection.setDefaultHostnameVerifier(notVerify);
SSLContext sc = SSLContext.getInstance("TLS");
sc.init(null, trustAllCerts, new java.security.SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
} catch (Exception e) {
}
}
/**
* Gets the proxy.
*
* @return the proxy
*/
private static Proxy getProxy() {
String proxyHost = System.getProperty("http.proxyHost");
String proxyPort = System.getProperty("http.proxyPort");
if (!TextUtils.isEmpty(proxyHost) && !TextUtils.isEmpty(proxyPort))
return new Proxy(java.net.Proxy.Type.HTTP,
new InetSocketAddress(proxyHost, Integer.valueOf(proxyPort)));
else
return null;
}
/**
* Sets the connection cookie if cookie is's empty.
*
* @param connection the connection
* @param cookie the cookie
* @throws IOException Signals that an I/O exception has occurred.
* @throws AuthFailureError the auth failure error
*/
private void setConnectionCookie(HttpURLConnection connection, String cookie)
throws IOException, AuthFailureError {
if (!TextUtils.isEmpty(cookie)) {
connection.setRequestProperty(HEADER_COOKIE, cookie);
}
}
/**
* Store connection cookie if cookie is't empty.
*
* @param connection the connection
* @param request the request
* @throws IOException Signals that an I/O exception has occurred.
* @throws AuthFailureError the auth failure error
*/
public void storeConnectionCookie(HttpURLConnection connection, Request<?> request)
throws IOException, AuthFailureError {
String cookieHeader = connection.getHeaderField(HEADER_SET_COOKIE);
if (!TextUtils.isEmpty(cookieHeader)) {
this.cookie = cookieHeader.substring(0, cookieHeader.indexOf(";"));
}
}
/**
* Perform a multipart request on a connection
*
* @param connection
* The Connection to perform the multi part request
* @param request
* @param additionalHeaders
* @param multipartParams
* The params to add to the Multi Part request
* @param filesToUpload
* The files to upload
* @throws ProtocolException
*/
private static void setConnectionParametersForMultipartRequest(HttpURLConnection connection, Request<?> request,
HashMap<String, String> additionalHeaders) throws IOException, ProtocolException {
final String charset = ((MultiPartRequest<?>) request)
.getProtocolCharset();
final int curTime = (int) (System.currentTimeMillis() / 1000);
final String boundary = BOUNDARY_PREFIX + curTime;
connection.setRequestMethod("POST");
connection.setDoOutput(true);
connection.setRequestProperty(HEADER_CONTENT_TYPE,
String.format(CONTENT_TYPE_MULTIPART, charset, curTime));
connection.setChunkedStreamingMode(0);
Map<String, MultiPartParam> multipartParams = ((MultiPartRequest<?>) request)
.getMultipartParams();
Map<String, String> filesToUpload = ((MultiPartRequest<?>) request)
.getFilesToUpload();
PrintWriter writer = null;
OutputStream out = null;
try {
addHeadersToConnection(connection, additionalHeaders);
out = connection.getOutputStream();
writer = new PrintWriter(new OutputStreamWriter(out, charset), true);
for (String key : multipartParams.keySet()) {
MultiPartParam param = multipartParams.get(key);
writer.append(boundary)
.append(CRLF)
.append(String.format(HEADER_CONTENT_DISPOSITION
+ COLON_SPACE + FORM_DATA, key))
.append(CRLF)
.append(HEADER_CONTENT_TYPE + COLON_SPACE
+ param.contentType)
.append(CRLF)
.append(CRLF)
.append(param.value)
.append(CRLF)
.flush();
}
for (String key : filesToUpload.keySet()) {
File file = new File(filesToUpload.get(key));
if(!file.exists()) {
throw new IOException(String.format("File not found: %s", file.getAbsolutePath()));
}
if(file.isDirectory()) {
throw new IOException(String.format("File is a directory: %s", file.getAbsolutePath()));
}
writer.append(boundary)
.append(CRLF)
.append(String.format(HEADER_CONTENT_DISPOSITION
+ COLON_SPACE + FORM_DATA + SEMICOLON_SPACE
+ FILENAME, key, file.getName()))
.append(CRLF)
.append(HEADER_CONTENT_TYPE + COLON_SPACE
+ CONTENT_TYPE_OCTET_STREAM)
.append(CRLF)
.append(HEADER_CONTENT_TRANSFER_ENCODING + COLON_SPACE
+ BINARY)
.append(CRLF)
.append(CRLF)
.flush();
BufferedInputStream input = null;
try {
FileInputStream fis = new FileInputStream(file);
input = new BufferedInputStream(fis);
int bufferLength = 0;
byte[] buffer = new byte[1024];
while ((bufferLength = input.read(buffer)) > 0) {
out.write(buffer, 0, bufferLength);
}
out.flush(); // Important! Output cannot be closed. Close of
// writer will close
// output as well.
} finally {
if (input != null)
try {
input.close();
} catch (IOException ex) {
ex.printStackTrace();
}
}
writer.append(CRLF).flush(); // CRLF is important! It indicates
// end of binary
// boundary.
}
// End of multipart/form-data.
writer.append(boundary + BOUNDARY_PREFIX).append(CRLF).flush();
} catch (Exception e) {
e.printStackTrace();
} finally {
if (writer != null) {
writer.close();
}
if(out != null) {
out.close();
}
}
}
/**
* Add headers and user agent to an {@code }
*
* @param connection
* The {@linkplain HttpURLConnection} to add request headers to
* @param userAgent
* The User Agent to identify on server
* @param additionalHeaders
* The headers to add to the request
*/
private static void addHeadersToConnection(HttpURLConnection connection,
Map<String, String> additionalHeaders) {
for (String headerName : additionalHeaders.keySet()) {
connection.addRequestProperty(headerName,
additionalHeaders.get(headerName));
}
}
/**
* Sets the connection parameters for request.
*
* @param connection the connection
* @param request the request
* @throws IOException Signals that an I/O exception has occurred.
* @throws AuthFailureError the auth failure error
*/
@SuppressWarnings("deprecation")
/* package */ static void setConnectionParametersForRequest(HttpURLConnection connection,
Request<?> request) throws IOException, AuthFailureError {
switch (request.getMethod()) {
case Method.DEPRECATED_GET_OR_POST:
// This is the deprecated way that needs to be handled for backwards compatibility.
// If the request's post body is null, then the assumption is that the request is
// GET. Otherwise, it is assumed that the request is a POST.
byte[] postBody = request.getPostBody();
if (postBody != null) {
// Prepare output. There is no need to set Content-Length explicitly,
// since this is handled by HttpURLConnection using the size of the prepared
// output stream.
connection.setDoOutput(true);
connection.setRequestMethod("POST");
connection.addRequestProperty(HEADER_CONTENT_TYPE,
request.getPostBodyContentType());
DataOutputStream out = new DataOutputStream(connection.getOutputStream());
out.write(postBody);
out.close();
}
break;
case Method.GET:
// Not necessary to set the request method because connection defaults to GET but
// being explicit here.
connection.setRequestMethod("GET");
break;
case Method.DELETE:
connection.setRequestMethod("DELETE");
break;
case Method.POST:
connection.setRequestMethod("POST");
addBodyIfExists(connection, request);
break;
case Method.PUT:
connection.setRequestMethod("PUT");
addBodyIfExists(connection, request);
break;
default:
throw new IllegalStateException("Unknown method type.");
}
}
/**
* Adds the body if exists.
*
* @param connection the connection
* @param request the request
* @throws IOException Signals that an I/O exception has occurred.
* @throws AuthFailureError the auth failure error
*/
private static void addBodyIfExists(HttpURLConnection connection, Request<?> request)
throws IOException, AuthFailureError {
byte[] body = request.getBody();
if (body != null) {
connection.setDoOutput(true);
connection.addRequestProperty(HEADER_CONTENT_TYPE, request.getBodyContentType());
DataOutputStream out = new DataOutputStream(connection.getOutputStream());
out.write(body);
out.close();
}
}
}