@Override public GatewayFilter apply(Config config) { return (exchange, chain) -> { ServerHttpRequest request = exchange.getRequest(); addOriginalRequestUrl(exchange, request.getURI()); String path = request.getURI().getRawPath(); String newPath = "/" + Arrays.stream(StringUtils.tokenizeToStringArray(path, "/")) .skip(config.parts).collect(Collectors.joining("/")); newPath += (newPath.length() > 1 && path.endsWith("/") ? "/" : ""); ServerHttpRequest newRequest = request.mutate() .path(newPath) .build(); exchange.getAttributes().put(GATEWAY_REQUEST_URL_ATTR, newRequest.getURI()); return chain.filter(exchange.mutate().request(newRequest).build()); }; }
/** * Apply and remove, or remove Forwarded type headers. * @param request the request */ @Override public ServerHttpRequest apply(ServerHttpRequest request) { if (hasForwardedHeaders(request)) { ServerHttpRequest.Builder builder = request.mutate(); if (!this.removeOnly) { URI uri = UriComponentsBuilder.fromHttpRequest(request).build(true).toUri(); builder.uri(uri); String prefix = getForwardedPrefix(request); if (prefix != null) { builder.path(prefix + uri.getPath()); builder.contextPath(prefix); } } removeForwardedHeaders(builder); request = builder.build(); } return request; }
/** * Apply and remove, or remove Forwarded type headers. * @param request the request */ @Override public ServerHttpRequest apply(ServerHttpRequest request) { if (hasForwardedHeaders(request)) { ServerHttpRequest.Builder builder = request.mutate(); if (!this.removeOnly) { URI uri = UriComponentsBuilder.fromHttpRequest(request).build(true).toUri(); builder.uri(uri); String prefix = getForwardedPrefix(request); if (prefix != null) { builder.path(prefix + uri.getPath()); builder.contextPath(prefix); } } removeForwardedHeaders(builder); request = builder.build(); } return request; }
String path = "/hello/"+name; ServerHttpRequest request = exchange.getRequest().mutate() .path(path) .build(); return chain.filter(exchange.mutate().request(request).build());
/** * Apply and remove, or remove Forwarded type headers. * @param request the request */ @Override public ServerHttpRequest apply(ServerHttpRequest request) { if (hasForwardedHeaders(request)) { ServerHttpRequest.Builder builder = request.mutate(); if (!this.removeOnly) { URI uri = UriComponentsBuilder.fromHttpRequest(request).build(true).toUri(); builder.uri(uri); String prefix = getForwardedPrefix(request); if (prefix != null) { builder.path(prefix + uri.getPath()); builder.contextPath(prefix); } } removeForwardedHeaders(builder); request = builder.build(); } return request; }
/** * Apply and remove, or remove Forwarded type headers. * @param request the request */ @Override public ServerHttpRequest apply(ServerHttpRequest request) { if (hasForwardedHeaders(request)) { ServerHttpRequest.Builder builder = request.mutate(); if (!this.removeOnly) { URI uri = UriComponentsBuilder.fromHttpRequest(request).build(true).toUri(); builder.uri(uri); String prefix = getForwardedPrefix(request); if (prefix != null) { builder.path(prefix + uri.getPath()); builder.contextPath(prefix); } } removeForwardedHeaders(builder); request = builder.build(); } return request; }
/** * * @param forwardToPath: forward target path that begin with /. * @param exchange: the current source server exchange * @param forwardAttrs : the attributes that added to forward Exchange. * @return Mono<Void> to signal forwarding request completed. */ public static Mono<Void> forward(String forwardToPath,ServerWebExchange exchange,Map<String,Object> forwardAttrs){ WebFilterChain webFilterChain = (WebFilterChain)exchange.getAttributes().get(Constant.WEB_FILTER_ATTR_NAME); ServerHttpRequest forwardReq = exchange.getRequest().mutate().path(forwardToPath).build(); ServerWebExchange forwardExchange = exchange.mutate().request(forwardReq).build(); if(null != forwardAttrs && !forwardAttrs.isEmpty()) { forwardExchange.getAttributes().putAll(forwardAttrs); } return webFilterChain.filter(forwardExchange); } }
@Override public GatewayFilter apply(Config config) { return (exchange, chain) -> { boolean alreadyPrefixed = exchange.getAttributeOrDefault(GATEWAY_ALREADY_PREFIXED_ATTR, false); if (alreadyPrefixed) { return chain.filter(exchange); } exchange.getAttributes().put(GATEWAY_ALREADY_PREFIXED_ATTR, true); ServerHttpRequest req = exchange.getRequest(); addOriginalRequestUrl(exchange, req.getURI()); String newPath = config.prefix + req.getURI().getRawPath(); ServerHttpRequest request = req.mutate() .path(newPath) .build(); exchange.getAttributes().put(GATEWAY_REQUEST_URL_ATTR, request.getURI()); if (log.isTraceEnabled()) { log.trace("Prefixed URI with: "+config.prefix+" -> "+request.getURI()); } return chain.filter(exchange.mutate().request(request).build()); }; }
@Override public GatewayFilter apply(Config config) { UriTemplate uriTemplate = new UriTemplate(config.template); return (exchange, chain) -> { ServerHttpRequest req = exchange.getRequest(); addOriginalRequestUrl(exchange, req.getURI()); Map<String, String> uriVariables = getUriTemplateVariables(exchange); URI uri = uriTemplate.expand(uriVariables); String newPath = uri.getRawPath(); exchange.getAttributes().put(GATEWAY_REQUEST_URL_ATTR, uri); ServerHttpRequest request = req.mutate() .path(newPath) .build(); return chain.filter(exchange.mutate().request(request).build()); }; }
@Override public GatewayFilter apply(Config config) { String replacement = config.replacement.replace("$\\", "$"); return (exchange, chain) -> { ServerHttpRequest req = exchange.getRequest(); addOriginalRequestUrl(exchange, req.getURI()); String path = req.getURI().getRawPath(); String newPath = path.replaceAll(config.regexp, replacement); ServerHttpRequest request = req.mutate() .path(newPath) .build(); exchange.getAttributes().put(GATEWAY_REQUEST_URL_ATTR, request.getURI()); return chain.filter(exchange.mutate().request(request).build()); }; }
@Override public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) { Route route = exchange.getAttribute(GATEWAY_ROUTE_ATTR); URI routeUri = route.getUri(); String scheme = routeUri.getScheme(); if (isAlreadyRouted(exchange) || !"forward".equals(scheme)) { return chain.filter(exchange); } exchange = exchange.mutate().request( exchange.getRequest().mutate().path(routeUri.getPath()).build()) .build(); return chain.filter(exchange); }
@Test public void mutateRequest() throws Exception { SslInfo sslInfo = mock(SslInfo.class); ServerHttpRequest request = createHttpRequest("/").mutate().sslInfo(sslInfo).build(); assertSame(sslInfo, request.getSslInfo()); request = createHttpRequest("/").mutate().method(HttpMethod.DELETE).build(); assertEquals(HttpMethod.DELETE, request.getMethod()); String baseUri = "http://aaa.org:8080/a"; request = createHttpRequest(baseUri).mutate().uri(URI.create("http://bbb.org:9090/b")).build(); assertEquals("http://bbb.org:9090/b", request.getURI().toString()); request = createHttpRequest(baseUri).mutate().path("/b/c/d").build(); assertEquals("http://aaa.org:8080/b/c/d", request.getURI().toString()); request = createHttpRequest(baseUri).mutate().path("/app/b/c/d").contextPath("/app").build(); assertEquals("http://aaa.org:8080/app/b/c/d", request.getURI().toString()); assertEquals("/app", request.getPath().contextPath().value()); }
@Test(expected = IllegalArgumentException.class) public void mutateWithInvalidPath() throws Exception { createHttpRequest("/").mutate().path("foo-bar"); }
@Test // SPR-16434 public void mutatePathWithEncodedQueryParams() throws Exception { ServerHttpRequest request = createHttpRequest("/path?name=%E6%89%8E%E6%A0%B9"); request = request.mutate().path("/mutatedPath").build(); assertEquals("/mutatedPath", request.getURI().getRawPath()); assertEquals("name=%E6%89%8E%E6%A0%B9", request.getURI().getRawQuery()); }