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| 1 | +/* |
| 2 | + * Copyright 2002-present the original author or authors. |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * https://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + */ |
| 16 | + |
| 17 | +package org.springframework.web.servlet.handler; |
| 18 | + |
| 19 | +import jakarta.servlet.http.HttpServletRequest; |
| 20 | +import org.junit.jupiter.api.Test; |
| 21 | + |
| 22 | +import org.springframework.context.annotation.Bean; |
| 23 | +import org.springframework.context.annotation.Configuration; |
| 24 | +import org.springframework.http.HttpHeaders; |
| 25 | +import org.springframework.stereotype.Controller; |
| 26 | +import org.springframework.web.bind.annotation.CrossOrigin; |
| 27 | +import org.springframework.web.bind.annotation.PostMapping; |
| 28 | +import org.springframework.web.context.WebApplicationContext; |
| 29 | +import org.springframework.web.context.support.AnnotationConfigWebApplicationContext; |
| 30 | +import org.springframework.web.cors.PreFlightRequestHandler; |
| 31 | +import org.springframework.web.servlet.NoHandlerFoundException; |
| 32 | +import org.springframework.web.servlet.function.RouterFunction; |
| 33 | +import org.springframework.web.servlet.function.RouterFunctions; |
| 34 | +import org.springframework.web.servlet.function.ServerResponse; |
| 35 | +import org.springframework.web.servlet.function.support.RouterFunctionMapping; |
| 36 | +import org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping; |
| 37 | +import org.springframework.web.testfixture.servlet.MockHttpServletRequest; |
| 38 | +import org.springframework.web.testfixture.servlet.MockHttpServletResponse; |
| 39 | + |
| 40 | +import static org.assertj.core.api.Assertions.assertThat; |
| 41 | +import static org.assertj.core.api.Assertions.assertThatThrownBy; |
| 42 | + |
| 43 | +/** |
| 44 | + * Tests for {@link DefaultPreFlightRequestHandler}. |
| 45 | + * |
| 46 | + * @since 7.1 |
| 47 | + */ |
| 48 | +class DefaultPreFlightRequestHandlerTests { |
| 49 | + |
| 50 | + @Test |
| 51 | + void handlePreFlight() throws Exception { |
| 52 | + AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext(); |
| 53 | + context.register(TestConfig.class); |
| 54 | + context.refresh(); |
| 55 | + |
| 56 | + MockHttpServletRequest request = new MockHttpServletRequest("OPTIONS", "/path"); |
| 57 | + request.addHeader("Origin", "http://localhost:9000"); |
| 58 | + request.addHeader(HttpHeaders.ACCESS_CONTROL_REQUEST_METHOD, "POST"); |
| 59 | + MockHttpServletResponse response = new MockHttpServletResponse(); |
| 60 | + |
| 61 | + initHandler(context).handlePreFlight(request, response); |
| 62 | + |
| 63 | + assertThat(response.getHeader(HttpHeaders.ACCESS_CONTROL_ALLOW_ORIGIN)).isEqualTo("http://localhost:9000"); |
| 64 | + assertThat(response.getHeaders(HttpHeaders.ACCESS_CONTROL_ALLOW_METHODS)).containsExactly("POST"); |
| 65 | + } |
| 66 | + |
| 67 | + @Test |
| 68 | + void handlePreFlightWithNoHandlerFoundException() { |
| 69 | + AnnotationConfigWebApplicationContext context = new AnnotationConfigWebApplicationContext(); |
| 70 | + context.register(TestConfig.class); |
| 71 | + context.refresh(); |
| 72 | + |
| 73 | + MockHttpServletRequest request = new MockHttpServletRequest("OPTIONS", "/unknownPath"); |
| 74 | + request.addHeader("Origin", "http://localhost:9000"); |
| 75 | + request.addHeader(HttpHeaders.ACCESS_CONTROL_REQUEST_METHOD, "POST"); |
| 76 | + MockHttpServletResponse response = new MockHttpServletResponse(); |
| 77 | + |
| 78 | + assertThatThrownBy(() -> initHandler(context).handlePreFlight(request, response)) |
| 79 | + .isInstanceOf(NoHandlerFoundException.class); |
| 80 | + |
| 81 | + assertThat(response.getHeader(HttpHeaders.ACCESS_CONTROL_ALLOW_ORIGIN)).isNull(); |
| 82 | + assertThat(response.getHeader(HttpHeaders.ACCESS_CONTROL_ALLOW_METHODS)).isNull(); |
| 83 | + } |
| 84 | + |
| 85 | + private static PreFlightRequestHandler initHandler(WebApplicationContext context) { |
| 86 | + DefaultPreFlightRequestHandler preFlightRequestHandler = new DefaultPreFlightRequestHandler(); |
| 87 | + preFlightRequestHandler.setApplicationContext(context); |
| 88 | + preFlightRequestHandler.afterPropertiesSet(); |
| 89 | + return preFlightRequestHandler; |
| 90 | + } |
| 91 | + |
| 92 | + |
| 93 | + @Configuration |
| 94 | + static class TestConfig { |
| 95 | + |
| 96 | + @Bean |
| 97 | + public RouterFunctionMapping routerFunctionMapping() { |
| 98 | + RouterFunctionMapping mapping = new RouterFunctionMapping(); |
| 99 | + mapping.setOrder(1); |
| 100 | + return mapping; |
| 101 | + } |
| 102 | + |
| 103 | + @Bean |
| 104 | + public RequestMappingHandlerMapping handlerMapping() { |
| 105 | + RequestMappingHandlerMapping mapping = new RequestMappingHandlerMapping(); |
| 106 | + mapping.setOrder(2); |
| 107 | + return mapping; |
| 108 | + } |
| 109 | + |
| 110 | + @Bean |
| 111 | + public TestController testController() { |
| 112 | + return new TestController(); |
| 113 | + } |
| 114 | + |
| 115 | + @Bean |
| 116 | + public RouterFunction<?> routerFunction() { |
| 117 | + return RouterFunctions.route().GET("/fn-path", request -> ServerResponse.ok().build()).build(); |
| 118 | + } |
| 119 | + } |
| 120 | + |
| 121 | + |
| 122 | + @CrossOrigin("http://localhost:9000") |
| 123 | + @Controller |
| 124 | + private static class TestController { |
| 125 | + |
| 126 | + @PostMapping("/path") |
| 127 | + void handle() { |
| 128 | + } |
| 129 | + } |
| 130 | + |
| 131 | + private static class TestMatchableHandlerMapping extends SimpleUrlHandlerMapping { |
| 132 | + |
| 133 | + private int invocationCount; |
| 134 | + |
| 135 | + private int matchCount; |
| 136 | + |
| 137 | + public int getInvocationCount() { |
| 138 | + return this.invocationCount; |
| 139 | + } |
| 140 | + |
| 141 | + public int getMatchCount() { |
| 142 | + return this.matchCount; |
| 143 | + } |
| 144 | + |
| 145 | + @Override |
| 146 | + protected Object getHandlerInternal(HttpServletRequest request) throws Exception { |
| 147 | + this.invocationCount++; |
| 148 | + Object handler = super.getHandlerInternal(request); |
| 149 | + if (handler != null) { |
| 150 | + this.matchCount++; |
| 151 | + } |
| 152 | + return handler; |
| 153 | + } |
| 154 | + } |
| 155 | +} |
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