List of usage examples for org.apache.http.client.methods AbortableHttpRequest abort
void abort();
From source file:uk.co.bubobubo.web.HttpClientProxy.java
@Override protected void service(HttpServletRequest servletRequest, HttpServletResponse servletResponse) throws ServletException, IOException { // Make the Request //note: we won't transfer the protocol version because I'm not sure it would truly be compatible String method = servletRequest.getMethod(); String proxyRequestUri = rewriteUrlFromRequest(servletRequest); HttpRequest proxyRequest;// w ww . j a v a 2 s . com //spec: RFC 2616, sec 4.3: either these two headers signal that there is a message body. if (servletRequest.getHeader(HttpHeaders.CONTENT_LENGTH) != null || servletRequest.getHeader(HttpHeaders.TRANSFER_ENCODING) != null) { HttpEntityEnclosingRequest eProxyRequest = new BasicHttpEntityEnclosingRequest(method, proxyRequestUri); // Add the input entity (streamed) // note: we don't bother ensuring we close the servletInputStream since the container handles it eProxyRequest.setEntity( new InputStreamEntity(servletRequest.getInputStream(), servletRequest.getContentLength())); proxyRequest = eProxyRequest; } else proxyRequest = new BasicHttpRequest(method, proxyRequestUri); copyRequestHeaders(servletRequest, proxyRequest); try { // Execute the request if (doLog) { log("proxy " + method + " uri: " + servletRequest.getRequestURI() + " -- " + proxyRequest.getRequestLine().getUri()); } proxyRequest.removeHeaders("authorization"); if (targetUri.getUserInfo() != null && !targetUri.getUserInfo().equalsIgnoreCase("") && !targetUri.getUserInfo().equalsIgnoreCase(":")) { Credentials credentials = new UsernamePasswordCredentials(targetUri.getUserInfo().split(":")[0], targetUri.getUserInfo().split(":")[1]); proxyClient.getCredentialsProvider().setCredentials(AuthScope.ANY, credentials); } HttpResponse proxyResponse = proxyClient.execute(URIUtils.extractHost(targetUri), proxyRequest); // Process the response int statusCode = proxyResponse.getStatusLine().getStatusCode(); if (doResponseRedirectOrNotModifiedLogic(servletRequest, servletResponse, proxyResponse, statusCode)) { //just to be sure, but is probably a no-op EntityUtils.consume(proxyResponse.getEntity()); return; } // Pass the response code. This method with the "reason phrase" is deprecated but it's the only way to pass the // reason along too. //noinspection deprecation servletResponse.setStatus(statusCode, proxyResponse.getStatusLine().getReasonPhrase()); copyResponseHeaders(proxyResponse, servletResponse); // Send the content to the client copyResponseEntity(proxyResponse, servletResponse); } catch (Exception e) { //abort request, according to best practice with HttpClient if (proxyRequest instanceof AbortableHttpRequest) { AbortableHttpRequest abortableHttpRequest = (AbortableHttpRequest) proxyRequest; abortableHttpRequest.abort(); } if (e instanceof RuntimeException) throw (RuntimeException) e; if (e instanceof ServletException) throw (ServletException) e; if (e instanceof IOException) throw (IOException) e; throw new RuntimeException(e); } }
From source file:snoopware.api.ProxyServlet.java
@Override protected void service(HttpServletRequest servletRequest, HttpServletResponse servletResponse) throws ServletException, IOException { // Make the Request //note: we won't transfer the protocol version because I'm not sure it would truly be compatible String method = servletRequest.getMethod(); String proxyRequestUri = rewriteUrlFromRequest(servletRequest); HttpRequest proxyRequest;/*from ww w .j a v a2s.c o m*/ //spec: RFC 2616, sec 4.3: either of these two headers signal that there is a message body. if (servletRequest.getHeader(HttpHeaders.CONTENT_LENGTH) != null || servletRequest.getHeader(HttpHeaders.TRANSFER_ENCODING) != null) { HttpEntityEnclosingRequest eProxyRequest = new BasicHttpEntityEnclosingRequest(method, proxyRequestUri); // Add the input entity (streamed) // note: we don't bother ensuring we close the servletInputStream since the container handles it eProxyRequest.setEntity( new InputStreamEntity(servletRequest.getInputStream(), servletRequest.getContentLength())); proxyRequest = eProxyRequest; } else { proxyRequest = new BasicHttpRequest(method, proxyRequestUri); } copyRequestHeaders(servletRequest, proxyRequest); try { // Execute the request if (doLog) { log("proxy " + method + " uri: " + servletRequest.getRequestURL().toString() + " -- " + proxyRequest.getRequestLine().getUri()); } HttpResponse proxyResponse = proxyClient.execute(URIUtils.extractHost(targetUri), proxyRequest); // Process the response int statusCode = proxyResponse.getStatusLine().getStatusCode(); if (doResponseRedirectOrNotModifiedLogic(servletRequest, servletResponse, proxyResponse, statusCode)) { //just to be sure, but is probably a no-op EntityUtils.consume(proxyResponse.getEntity()); return; } // Pass the response code. This method with the "reason phrase" is deprecated but // it's the only way to pass the // reason along too. //noinspection deprecation servletResponse.setStatus(statusCode, proxyResponse.getStatusLine().getReasonPhrase()); copyResponseHeaders(proxyResponse, servletResponse); // Send the content to the client copyResponseEntity(proxyResponse, servletResponse); } catch (Exception e) { //abort request, according to best practice with HttpClient if (proxyRequest instanceof AbortableHttpRequest) { AbortableHttpRequest abortableHttpRequest = (AbortableHttpRequest) proxyRequest; abortableHttpRequest.abort(); } if (e instanceof RuntimeException) { throw (RuntimeException) e; } if (e instanceof ServletException) { throw (ServletException) e; } //noinspection ConstantConditions if (e instanceof IOException) { throw (IOException) e; } throw new RuntimeException(e); } }
From source file:org.ocpsoft.rewrite.servlet.config.proxy.ProxyServlet.java
protected void service(HttpServletRequest servletRequest, HttpServletResponse servletResponse) throws ServletException, IOException { /*//from w ww.j av a2 s.co m * Note: we won't transfer the protocol version because I'm not sure it would truly be compatible */ String method = servletRequest.getMethod(); HttpRequest proxyRequest; /* * Spec: RFC 2616, sec 4.3: either of these two headers signal that there is a message body. */ if (servletRequest.getHeader(HttpHeaders.CONTENT_LENGTH) != null || servletRequest.getHeader(HttpHeaders.TRANSFER_ENCODING) != null) { HttpEntityEnclosingRequest eProxyRequest = new BasicHttpEntityEnclosingRequest(method, targetUri); /* * Add the input entity (streamed) note: we don't bother ensuring we close the servletInputStream since the * container handles it */ eProxyRequest.setEntity( new InputStreamEntity(servletRequest.getInputStream(), servletRequest.getContentLength())); proxyRequest = eProxyRequest; } else proxyRequest = new BasicHttpRequest(method, targetUri); copyRequestHeaders(servletRequest, proxyRequest); try { /* * Execute the request */ if (doLog) { logger.debug("proxy " + method + " uri: " + servletRequest.getRequestURI() + " -- " + proxyRequest.getRequestLine().getUri()); } HttpResponse proxyResponse = proxyClient.execute(URIUtils.extractHost(targetUriObj), proxyRequest); /* * Process the response */ int statusCode = proxyResponse.getStatusLine().getStatusCode(); if (doResponseRedirectOrNotModifiedLogic(servletRequest, servletResponse, proxyResponse, statusCode)) { /* * just to be sure, but is probably a no-op */ EntityUtils.consume(proxyResponse.getEntity()); return; } /* * Pass the response code. This method with the "reason phrase" is deprecated but it's the only way to pass the * reason along too. noinspection deprecation */ servletResponse.setStatus(statusCode, proxyResponse.getStatusLine().getReasonPhrase()); copyResponseHeaders(proxyResponse, servletResponse); /* * Send the content to the client */ copyResponseEntity(proxyResponse, servletResponse); } catch (Exception e) { /* * abort request, according to best practice with HttpClient */ if (proxyRequest instanceof AbortableHttpRequest) { AbortableHttpRequest abortableHttpRequest = (AbortableHttpRequest) proxyRequest; abortableHttpRequest.abort(); } if (e instanceof RuntimeException) throw (RuntimeException) e; if (e instanceof ServletException) throw (ServletException) e; // noinspection ConstantConditions if (e instanceof IOException) throw (IOException) e; throw new RuntimeException(e); } }
From source file:kornell.server.ProxyServlet.java
@Override protected void service(HttpServletRequest servletRequest, HttpServletResponse servletResponse) throws ServletException, IOException { // Make the Request //note: we won't transfer the protocol version because I'm not sure it would truly be compatible String method = servletRequest.getMethod(); String proxyRequestUri = rewriteUrlFromRequest(servletRequest); HttpRequest proxyRequest;/* w ww .j a va 2 s . c om*/ //spec: RFC 2616, sec 4.3: either of these two headers signal that there is a message body. if (servletRequest.getHeader(HttpHeaders.CONTENT_LENGTH) != null || servletRequest.getHeader(HttpHeaders.TRANSFER_ENCODING) != null) { HttpEntityEnclosingRequest eProxyRequest = new BasicHttpEntityEnclosingRequest(method, proxyRequestUri); // Add the input entity (streamed) // note: we don't bother ensuring we close the servletInputStream since the container handles it eProxyRequest.setEntity( new InputStreamEntity(servletRequest.getInputStream(), servletRequest.getContentLength())); proxyRequest = eProxyRequest; } else proxyRequest = new BasicHttpRequest(method, proxyRequestUri); copyRequestHeaders(servletRequest, proxyRequest); setXForwardedForHeader(servletRequest, proxyRequest); HttpResponse proxyResponse = null; try { // Execute the request if (doLog) { log("proxy " + method + " uri: " + servletRequest.getRequestURI() + " -- " + proxyRequest.getRequestLine().getUri()); } proxyResponse = proxyClient.execute(URIUtils.extractHost(targetUriObj), proxyRequest); // Process the response int statusCode = proxyResponse.getStatusLine().getStatusCode(); if (doResponseRedirectOrNotModifiedLogic(servletRequest, servletResponse, proxyResponse, statusCode)) { //the response is already "committed" now without any body to send //TODO copy response headers? return; } // Pass the response code. This method with the "reason phrase" is deprecated but it's the only way to pass the // reason along too. //noinspection deprecation servletResponse.setStatus(statusCode, proxyResponse.getStatusLine().getReasonPhrase()); copyResponseHeaders(proxyResponse, servletResponse); // Send the content to the client copyResponseEntity(proxyResponse, servletResponse); } catch (Exception e) { //abort request, according to best practice with HttpClient if (proxyRequest instanceof AbortableHttpRequest) { AbortableHttpRequest abortableHttpRequest = (AbortableHttpRequest) proxyRequest; abortableHttpRequest.abort(); } if (e instanceof RuntimeException) throw (RuntimeException) e; if (e instanceof ServletException) throw (ServletException) e; //noinspection ConstantConditions if (e instanceof IOException) throw (IOException) e; throw new RuntimeException(e); } finally { // make sure the entire entity was consumed, so the connection is released if (proxyResponse != null) consumeQuietly(proxyResponse.getEntity()); if (proxyResponse != null) closeQuietly(servletResponse.getOutputStream()); } }
From source file:cn.knet.showcase.demos.servletproxy.ProxyServlet.java
protected void service(HttpServletRequest servletRequest, HttpServletResponse servletResponse) throws ServletException, IOException { //initialize request attributes from caches if unset by a subclass by this point if (servletRequest.getAttribute(ATTR_TARGET_URI) == null) { servletRequest.setAttribute(ATTR_TARGET_URI, targetUri); }/* www. j a v a2 s . com*/ if (servletRequest.getAttribute(ATTR_TARGET_HOST) == null) { servletRequest.setAttribute(ATTR_TARGET_HOST, targetHost); } // Make the Request //note: we won't transfer the protocol version because I'm not sure it would truly be compatible String method = servletRequest.getMethod(); String proxyRequestUri = rewriteUrlFromRequest(servletRequest); HttpRequest proxyRequest; //spec: RFC 2616, sec 4.3: either of these two headers signal that there is a message body. if (servletRequest.getHeader(HttpHeaders.CONTENT_LENGTH) != null || servletRequest.getHeader(HttpHeaders.TRANSFER_ENCODING) != null) { proxyRequest = newProxyRequestWithEntity(method, proxyRequestUri, servletRequest); } else { proxyRequest = new BasicHttpRequest(method, proxyRequestUri); } copyRequestHeaders(servletRequest, proxyRequest); setXForwardedForHeader(servletRequest, proxyRequest); HttpResponse proxyResponse = null; try { // Execute the request //Fallback on using older client: proxyResponse = proxyClient.execute(getTargetHost(servletRequest), proxyRequest); // Process the response: // Pass the response code. This method with the "reason phrase" is deprecated but it's the // only way to pass the reason along too. int statusCode = proxyResponse.getStatusLine().getStatusCode(); //noinspection deprecation servletResponse.setStatus(statusCode, proxyResponse.getStatusLine().getReasonPhrase()); // Copying response headers to make sure SESSIONID or other Cookie which comes from the remote // server will be saved in client when the proxied url was redirected to another one. // See issue [#51](https://github.com/mitre/HTTP-Proxy-Servlet/issues/51) copyResponseHeaders(proxyResponse, servletRequest, servletResponse); if (statusCode == HttpServletResponse.SC_NOT_MODIFIED) { // 304 needs special handling. See: // http://www.ics.uci.edu/pub/ietf/http/rfc1945.html#Code304 // Don't send body entity/content! servletResponse.setIntHeader(HttpHeaders.CONTENT_LENGTH, 0); } else { // Send the content to the client copyResponseEntity(proxyResponse, servletResponse); } } catch (Exception e) { //abort request, according to best practice with HttpClient if (proxyRequest instanceof AbortableHttpRequest) { AbortableHttpRequest abortableHttpRequest = (AbortableHttpRequest) proxyRequest; abortableHttpRequest.abort(); } if (e instanceof RuntimeException) throw (RuntimeException) e; if (e instanceof ServletException) throw (ServletException) e; //noinspection ConstantConditions if (e instanceof IOException) throw (IOException) e; throw new RuntimeException(e); } finally { // make sure the entire entity was consumed, so the connection is released if (proxyResponse != null) consumeQuietly(proxyResponse.getEntity()); //Note: Don't need to close servlet outputStream: // http://stackoverflow.com/questions/1159168/should-one-call-close-on-httpservletresponse-getoutputstream-getwriter } }
From source file:org.apache.karaf.cellar.http.balancer.CellarBalancerProxyServlet.java
@Override protected void service(HttpServletRequest servletRequest, HttpServletResponse servletResponse) throws ServletException, IOException { String location = locations.get(new Random().nextInt(locations.size())); URI locationUri = URI.create(location); HttpHost host = URIUtils.extractHost(locationUri); LOGGER.debug("CELLAR HTTP BALANCER: proxying to"); LOGGER.debug("CELLAR HTTP BALANCER: URI: {}", locationUri); LOGGER.debug("CELLAR HTTP BALANCER: Host: {}", host); // Make the Request //note: we won't transfer the protocol version because I'm not sure it would truly be compatible String method = servletRequest.getMethod(); LOGGER.debug("CELLAR HTTP BALANCER: Method: {}", method); String proxyRequestUri = rewriteUrlFromRequest(servletRequest, location); LOGGER.debug("CELLAR HTTP BALANCER: Proxy Request URI: {}", proxyRequestUri); HttpRequest proxyRequest;//from w w w . j a v a 2 s. com //spec: RFC 2616, sec 4.3: either of these two headers signal that there is a message body. if (servletRequest.getHeader(HttpHeaders.CONTENT_LENGTH) != null || servletRequest.getHeader(HttpHeaders.TRANSFER_ENCODING) != null) { HttpEntityEnclosingRequest eProxyRequest = new BasicHttpEntityEnclosingRequest(method, proxyRequestUri); // Add the input entity (streamed) // note: we don't bother ensuring we close the servletInputStream since the container handles it eProxyRequest.setEntity( new InputStreamEntity(servletRequest.getInputStream(), servletRequest.getContentLength())); proxyRequest = eProxyRequest; } else proxyRequest = new BasicHttpRequest(method, proxyRequestUri); LOGGER.debug("CELLAR HTTP BALANCER: copying request headers"); copyRequestHeaders(servletRequest, proxyRequest, host); LOGGER.debug("CELLAR HTTP BALANCER: set X-Forwarded header"); setXForwardedForHeader(servletRequest, proxyRequest); HttpResponse proxyResponse = null; try { // Execute the request LOGGER.debug("CELLAR HTTP BALANCER: executing proxy request"); proxyResponse = proxyClient.execute(host, proxyRequest); // Process the response int statusCode = proxyResponse.getStatusLine().getStatusCode(); LOGGER.debug("CELLAR HTTP BALANCER: status code: {}", statusCode); // copying response headers to make sure SESSIONID or other Cookie which comes from remote server // will be saved in client when the proxied url was redirected to another one. // see issue [#51](https://github.com/mitre/HTTP-Proxy-Servlet/issues/51) LOGGER.debug("CELLAR HTTP BALANCER: copying response headers"); copyResponseHeaders(proxyResponse, servletRequest, servletResponse); if (doResponseRedirectOrNotModifiedLogic(servletRequest, servletResponse, proxyResponse, statusCode, location)) { //the response is already "committed" now without any body to send return; } // Pass the response code. This method with the "reason phrase" is deprecated but it's the only way to pass the // reason along too. //noinspection deprecation LOGGER.debug("CELLAR HTTP BALANCER: set response status code"); servletResponse.setStatus(statusCode, proxyResponse.getStatusLine().getReasonPhrase()); // Send the content to the client LOGGER.debug("CELLAR HTTP BALANCER: copying response entity"); copyResponseEntity(proxyResponse, servletResponse); } catch (Exception e) { //abort request, according to best practice with HttpClient if (proxyRequest instanceof AbortableHttpRequest) { AbortableHttpRequest abortableHttpRequest = (AbortableHttpRequest) proxyRequest; abortableHttpRequest.abort(); } if (e instanceof RuntimeException) throw (RuntimeException) e; if (e instanceof ServletException) throw (ServletException) e; //noinspection ConstantConditions if (e instanceof IOException) throw (IOException) e; throw new RuntimeException(e); } finally { // make sure the entire entity was consumed, so the connection is released if (proxyResponse != null) consumeQuietly(proxyResponse.getEntity()); //Note: Don't need to close servlet outputStream: // http://stackoverflow.com/questions/1159168/should-one-call-close-on-httpservletresponse-getoutputstream-getwriter } }
From source file:org.iff.infra.util.servlet.ProxyServlet.java
@Override protected void service(HttpServletRequest servletRequest, HttpServletResponse servletResponse) throws ServletException, IOException { // Make the Request //note: we won't transfer the protocol version because I'm not sure it would truly be compatible String method = servletRequest.getMethod(); String proxyRequestUri = rewriteUrlFromRequest(servletRequest); HttpRequest proxyRequest;//from ww w . j a v a2 s . c om //spec: RFC 2616, sec 4.3: either of these two headers signal that there is a message body. if (servletRequest.getHeader(HttpHeaders.CONTENT_LENGTH) != null || servletRequest.getHeader(HttpHeaders.TRANSFER_ENCODING) != null) { HttpEntityEnclosingRequest eProxyRequest = new BasicHttpEntityEnclosingRequest(method, proxyRequestUri); // Add the input entity (streamed) // note: we don't bother ensuring we close the servletInputStream since the container handles it eProxyRequest.setEntity( new InputStreamEntity(servletRequest.getInputStream(), servletRequest.getContentLength())); proxyRequest = eProxyRequest; } else { proxyRequest = new BasicHttpRequest(method, proxyRequestUri); } copyRequestHeaders(servletRequest, proxyRequest); setXForwardedForHeader(servletRequest, proxyRequest); {//add by tylerchen String header = initParameterMap.get("header"); if (header != null) { String[] split = header.split("@@@"); for (String s : split) { String[] headerPaire = s.split("="); if (headerPaire.length == 2) { proxyRequest.addHeader(headerPaire[0], headerPaire[1]); } } } } HttpResponse proxyResponse = null; try { // Execute the request if (doLog) { log("proxy " + method + " uri: " + servletRequest.getRequestURI() + " -- " + proxyRequest.getRequestLine().getUri()); } proxyResponse = proxyClient.execute(URIUtils.extractHost(targetUriObj), proxyRequest); // Process the response int statusCode = proxyResponse.getStatusLine().getStatusCode(); if (doResponseRedirectOrNotModifiedLogic(servletRequest, servletResponse, proxyResponse, statusCode)) { //the response is already "committed" now without any body to send //TODO copy response headers? return; } // Pass the response code. This method with the "reason phrase" is deprecated but it's the only way to pass the // reason along too. //noinspection deprecation servletResponse.setStatus(statusCode, proxyResponse.getStatusLine().getReasonPhrase()); copyResponseHeaders(proxyResponse, servletResponse); if ("true".equals(initParameterMap.get("cached"))) {//add cache by tylerchen //servlet?? //?????20 //20????servlet HttpServletResponse response = (HttpServletResponse) servletResponse; Date date = new Date(); response.setDateHeader("Last-Modified", date.getTime()); //Last-Modified:??? response.setDateHeader("Expires", date.getTime() * 100); //Expires:? response.setHeader("Cache-Control", "public"); //Cache-Control???,public:????? response.setHeader("Cache-Control", "max-age=" + date.getTime() * 100); response.setHeader("Pragma", "Pragma"); //Pragma:??Pragmano-cache? //??????? /*response.setHeader( "Pragma", "no-cache" ); response.setDateHeader("Expires", 0); response.addHeader( "Cache-Control", "no-cache" );//????? response.addHeader( "Cache-Control", "no-store" );//???? response.addHeader( "Cache-Control", "must-revalidate" );*///?????? } // Send the content to the client copyResponseEntity(proxyResponse, servletResponse); } catch (Exception e) { //abort request, according to best practice with HttpClient if (proxyRequest instanceof AbortableHttpRequest) { AbortableHttpRequest abortableHttpRequest = (AbortableHttpRequest) proxyRequest; abortableHttpRequest.abort(); } if (e instanceof RuntimeException) throw (RuntimeException) e; if (e instanceof ServletException) throw (ServletException) e; //noinspection ConstantConditions if (e instanceof IOException) throw (IOException) e; throw new RuntimeException(e); } finally { // make sure the entire entity was consumed, so the connection is released if (proxyResponse != null) consumeQuietly(proxyResponse.getEntity()); //Note: Don't need to close servlet outputStream: // http://stackoverflow.com/questions/1159168/should-one-call-close-on-httpservletresponse-getoutputstream-getwriter } }
From source file:org.mitre.dsmiley.httpproxy.DynamicProxyServlet.java
@Override protected void service(HttpServletRequest servletRequest, HttpServletResponse servletResponse) throws ServletException, IOException { // Make the Request //note: we won't transfer the protocol version because I'm not sure it would truly be compatible String method = servletRequest.getMethod(); String proxyRequestUri = rewriteUrlFromRequest(servletRequest); HttpRequest proxyRequest;//from w w w. ja v a2 s .c o m //spec: RFC 2616, sec 4.3: either of these two headers signal that there is a message body. if (servletRequest.getHeader(HttpHeaders.CONTENT_LENGTH) != null || servletRequest.getHeader(HttpHeaders.TRANSFER_ENCODING) != null) { HttpEntityEnclosingRequest eProxyRequest = new BasicHttpEntityEnclosingRequest(method, proxyRequestUri); // Add the input entity (streamed) // note: we don't bother ensuring we close the servletInputStream since the container handles it eProxyRequest.setEntity( new InputStreamEntity(servletRequest.getInputStream(), servletRequest.getContentLength())); proxyRequest = eProxyRequest; } else proxyRequest = new BasicHttpRequest(method, proxyRequestUri); copyRequestHeaders(servletRequest, proxyRequest); setXForwardedForHeader(servletRequest, proxyRequest); HttpResponse proxyResponse = null; try { // Execute the request if (doLog) { LOG.info("proxy " + method + " uri: " + servletRequest.getRequestURI() + " -- " + proxyRequest.getRequestLine().getUri()); } proxyResponse = proxyClient.execute(getTargetHost(servletRequest), proxyRequest); // Process the response int statusCode = proxyResponse.getStatusLine().getStatusCode(); // copying response headers to make sure SESSIONID or other Cookie which comes from remote server // will be saved in client when the proxied url was redirected to another one. // see issue [#51](https://github.com/mitre/HTTP-Proxy-Servlet/issues/51) copyResponseHeaders(proxyResponse, servletRequest, servletResponse); if (doResponseRedirectOrNotModifiedLogic(servletRequest, servletResponse, proxyResponse, statusCode)) { //the response is already "committed" now without any body to send return; } // Pass the response code. This method with the "reason phrase" is deprecated but it's the only way to pass the // reason along too. //noinspection deprecation servletResponse.setStatus(statusCode, proxyResponse.getStatusLine().getReasonPhrase()); // Send the content to the client copyResponseEntity(proxyResponse, servletResponse); } catch (Exception e) { //abort request, according to best practice with HttpClient if (proxyRequest instanceof AbortableHttpRequest) { AbortableHttpRequest abortableHttpRequest = (AbortableHttpRequest) proxyRequest; abortableHttpRequest.abort(); } if (e instanceof RuntimeException) throw (RuntimeException) e; if (e instanceof ServletException) throw (ServletException) e; //noinspection ConstantConditions if (e instanceof IOException) throw (IOException) e; throw new RuntimeException(e); } finally { // make sure the entire entity was consumed, so the connection is released if (proxyResponse != null) consumeQuietly(proxyResponse.getEntity()); //Note: Don't need to close servlet outputStream: // http://stackoverflow.com/questions/1159168/should-one-call-close-on-httpservletresponse-getoutputstream-getwriter } }
From source file:io.hops.kibana.ProxyServlet.java
@Override protected void service(HttpServletRequest servletRequest, HttpServletResponse servletResponse) throws ServletException, IOException { //initialize request attributes from caches if unset by a subclass by this point if (servletRequest.getAttribute(ATTR_TARGET_URI) == null) { servletRequest.setAttribute(ATTR_TARGET_URI, targetUri); }//from w w w.ja va 2 s .co m if (servletRequest.getAttribute(ATTR_TARGET_HOST) == null) { servletRequest.setAttribute(ATTR_TARGET_HOST, targetHost); } // Make the Request //note: we won't transfer the protocol version because I'm not sure it would truly be compatible String method = servletRequest.getMethod(); String proxyRequestUri = rewriteUrlFromRequest(servletRequest); HttpRequest proxyRequest; //spec: RFC 2616, sec 4.3: either of these two headers signal that there is a message body. if (servletRequest.getHeader(HttpHeaders.CONTENT_LENGTH) != null || servletRequest.getHeader(HttpHeaders.TRANSFER_ENCODING) != null) { HttpEntityEnclosingRequest eProxyRequest = new BasicHttpEntityEnclosingRequest(method, proxyRequestUri); // Add the input entity (streamed) // note: we don't bother ensuring we close the servletInputStream since the container handles it eProxyRequest.setEntity( new InputStreamEntity(servletRequest.getInputStream(), servletRequest.getContentLength())); proxyRequest = eProxyRequest; } else proxyRequest = new BasicHttpRequest(method, proxyRequestUri); copyRequestHeaders(servletRequest, proxyRequest); setXForwardedForHeader(servletRequest, proxyRequest); HttpResponse proxyResponse = null; try { // Execute the request if (doLog) { log("proxy " + method + " uri: " + servletRequest.getRequestURI() + " -- " + proxyRequest.getRequestLine().getUri()); } proxyResponse = proxyClient.execute(getTargetHost(servletRequest), proxyRequest); // Process the response int statusCode = proxyResponse.getStatusLine().getStatusCode(); if (doResponseRedirectOrNotModifiedLogic(servletRequest, servletResponse, proxyResponse, statusCode)) { //the response is already "committed" now without any body to send //TODO copy response headers? return; } // Pass the response code. This method with the "reason phrase" is deprecated but it's the only way to pass the // reason along too. //noinspection deprecation servletResponse.setStatus(statusCode, proxyResponse.getStatusLine().getReasonPhrase()); copyResponseHeaders(proxyResponse, servletRequest, servletResponse); // Send the content to the client copyResponseEntity(proxyResponse, servletResponse); } catch (Exception e) { //abort request, according to best practice with HttpClient if (proxyRequest instanceof AbortableHttpRequest) { AbortableHttpRequest abortableHttpRequest = (AbortableHttpRequest) proxyRequest; abortableHttpRequest.abort(); } if (e instanceof RuntimeException) throw (RuntimeException) e; if (e instanceof ServletException) throw (ServletException) e; //noinspection ConstantConditions if (e instanceof IOException) throw (IOException) e; throw new RuntimeException(e); } finally { // make sure the entire entity was consumed, so the connection is released if (proxyResponse != null) consumeQuietly(proxyResponse.getEntity()); //Note: Don't need to close servlet outputStream: // http://stackoverflow.com/questions/1159168/should-one-call-close-on-httpservletresponse-getoutputstream-getwriter } }
From source file:org.opengeoportal.proxy.controllers.OldDynamicOgcController.java
@SuppressWarnings("deprecation") private void doProxy(String remoteUrl, HttpServletRequest servletRequest, HttpServletResponse servletResponse) throws ServletException, IOException { // Make the Request //note: we won't transfer the protocol version because I'm not sure it would truly be compatible try {/*from w ww.j a v a2s . c o m*/ this.targetUri = new URI(remoteUrl); } catch (URISyntaxException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } //Need to handle https, but think about "restricted" layers for now. Some institutions don't really have good protection for restricted layers. Does this open up potential for security //problems for those folks? if (servletRequest.getScheme().equals("https")) { //actually, what matters the most is if the remote url is https } BasicHttpEntityEnclosingRequest proxyRequest = new BasicHttpEntityEnclosingRequest( servletRequest.getMethod(), rewriteUrlFromRequest(servletRequest)); copyRequestHeaders(servletRequest, proxyRequest); // Add the input entity (streamed) then execute the request. HttpResponse proxyResponse = null; InputStream servletRequestInputStream = servletRequest.getInputStream(); try { try { proxyRequest.setEntity( new InputStreamEntity(servletRequestInputStream, servletRequest.getContentLength())); // Execute the request logger.debug("proxy " + servletRequest.getMethod() + " uri: " + servletRequest.getRequestURI() + " -- " + proxyRequest.getRequestLine().getUri()); proxyResponse = proxyClient.execute(URIUtils.extractHost(targetUri), proxyRequest); } finally { closeQuietly(servletRequestInputStream); } // Process the response int statusCode = proxyResponse.getStatusLine().getStatusCode(); logger.info("Status from remote server: " + Integer.toString(statusCode)); if (doResponseRedirectOrNotModifiedLogic(servletRequest, servletResponse, proxyResponse, statusCode)) { EntityUtils.consume(proxyResponse.getEntity()); return; } // Pass the response code. This method with the "reason phrase" is deprecated but it's the only way to pass the // reason along too. //noinspection deprecation servletResponse.setStatus(statusCode, proxyResponse.getStatusLine().getReasonPhrase()); copyResponseHeaders(proxyResponse, servletResponse); // Send the content to the client copyResponseEntity(proxyResponse, servletResponse); } catch (Exception e) { //abort request, according to best practice with HttpClient if (proxyRequest instanceof AbortableHttpRequest) { AbortableHttpRequest abortableHttpRequest = (AbortableHttpRequest) proxyRequest; abortableHttpRequest.abort(); } if (e instanceof RuntimeException) throw (RuntimeException) e; if (e instanceof ServletException) throw (ServletException) e; throw new RuntimeException(e); } }