Fix unescaped paths in SimpleHostRoutingFilter.

Move common code so RibbonRoutingFilter can use the same code.

Fixes gh-407

spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/zuul/filters/ProxyRequestHelper.java

@@ -29,6 +29,7 @@ import java.util.Set;
 
 import javax.servlet.http.HttpServletRequest;
 
+import lombok.extern.apachecommons.CommonsLog;
 import org.apache.commons.io.IOUtils;
 import org.springframework.boot.actuate.trace.TraceRepository;
 import org.springframework.util.LinkedMultiValueMap;
@@ -37,10 +38,13 @@ import org.springframework.util.StringUtils;
 
 import com.netflix.zuul.context.RequestContext;
 import com.netflix.zuul.util.HTTPRequestUtils;
+import org.springframework.web.util.UriUtils;
+import org.springframework.web.util.WebUtils;
 
 /**
  * @author Dave Syer
  */
+@CommonsLog
 public class ProxyRequestHelper {
 
 	/**
@@ -57,6 +61,20 @@ public class ProxyRequestHelper {
 		this.traces = traces;
 	}
 
+	public String buildZuulRequestURI(HttpServletRequest request) {
+		RequestContext context = RequestContext.getCurrentContext();
+		String uri = request.getRequestURI();
+		String contextURI = (String) context.get("requestURI");
+		if (contextURI != null) {
+			try {
+				uri = UriUtils.encodePath(contextURI, WebUtils.DEFAULT_CHARACTER_ENCODING);
+			} catch (Exception e) {
+				log.debug("unable to encode uri path from context, falling back to uri from request", e);
+			}
+		}
+		return uri;
+	}
+
 	public MultiValueMap<String, String> buildZuulRequestQueryParams(
 			HttpServletRequest request) {
 		Map<String, List<String>> map = HTTPRequestUtils.getInstance().getQueryParams();

spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/zuul/filters/route/RibbonCommand.java

@@ -80,7 +80,7 @@ public class RibbonCommand extends HystrixCommand<HttpResponse> {
 		super(getSetter(commandKey));
 		this.restClient = restClient;
 		this.verb = verb;
-		this.uri = (StringUtils.hasText(uri))? UriComponentsBuilder.fromUriString(uri).build().toUri() : new URI(uri);
+		this.uri = new URI(uri);
 		this.retryable = retryable;
 		this.headers = headers;
 		this.params = params;

spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/zuul/filters/route/RibbonRoutingFilter.java

@@ -95,10 +95,8 @@ public class RibbonRoutingFilter extends ZuulFilter {
 
 		RestClient restClient = this.clientFactory.getClient(serviceId, RestClient.class);
 
-		String uri = request.getRequestURI();
-		if (context.get("requestURI") != null) {
-			uri = (String) context.get("requestURI");
-		}
+		String uri = this.helper.buildZuulRequestURI(request);
+
 		// remove double slashes
 		uri = uri.replace("//", "/");
 		String service = (String) context.get("serviceId");

spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/zuul/filters/route/SimpleHostRoutingFilter.java

@@ -168,10 +168,7 @@ public class SimpleHostRoutingFilter extends ZuulFilter {
 		InputStream requestEntity = getRequestBody(request);
 		HttpClient httpclient = CLIENT.get();
 
-		String uri = request.getRequestURI();
-		if (context.get("requestURI") != null) {
-			uri = (String) context.get("requestURI");
-		}
+		String uri = this.helper.buildZuulRequestURI(request);
 
 		try {
 			HttpResponse response = forward(httpclient, verb, uri, request, headers,

spring-cloud-netflix-core/src/test/java/org/springframework/cloud/netflix/zuul/SampleZuulProxyApplicationTests.java

@@ -134,7 +134,7 @@ public class SampleZuulProxyApplicationTests {
 	}
 
 	@Test
-	public void routeWithSpace() {
+	public void ribbonRouteWithSpace() {
 		ResponseEntity<String> result = new TestRestTemplate().exchange(
 				"http://localhost:" + this.port + "/simple/spa ce",
 				HttpMethod.GET, new HttpEntity<>((Void) null), String.class);
@@ -142,6 +142,17 @@ public class SampleZuulProxyApplicationTests {
 		assertEquals("Hello space", result.getBody());
 	}
 
+	@Test
+	public void simpleHostRouteWithSpace() {
+		routes.addRoute("/self/**", "http://localhost:" + this.port);
+		this.endpoint.reset();
+		ResponseEntity<String> result = new TestRestTemplate().exchange(
+				"http://localhost:" + this.port + "/self/spa ce",
+				HttpMethod.GET, new HttpEntity<>((Void) null), String.class);
+		assertEquals(HttpStatus.OK, result.getStatusCode());
+		assertEquals("Hello space", result.getBody());
+	}
+
 }
 
 // Don't use @SpringBootApplication because we don't want to component scan