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Fall back to all media types if encountering invalid Accept header

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A warn log message is printed, and if log level is set to debug, the
exception stacktrace is logged, too.

Closes gh-37455
This commit is contained in:
Moritz Halbritter 2023-09-06 14:23:27 +02:00
parent 1f527c315e
commit 95690f7327
2 changed files with 25 additions and 1 deletions
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10
spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/web/servlet/WelcomePageHandlerMapping.java
View File

@ -29,6 +29,7 @@ import org.springframework.context.ApplicationContext;
import org.springframework.core.io.Resource;
import org.springframework.core.log.LogMessage;
import org.springframework.http.HttpHeaders;
import org.springframework.http.InvalidMediaTypeException;
import org.springframework.http.MediaType;
import org.springframework.util.StringUtils;
import org.springframework.web.servlet.handler.AbstractUrlHandlerMapping;
@ -41,6 +42,7 @@ import org.springframework.web.servlet.mvc.ParameterizableViewController;
*
* @author Andy Wilkinson
* @author Bruce Brouwer
* @author Moritz Halbritter
* @see WelcomePageNotAcceptableHandlerMapping
*/
final class WelcomePageHandlerMapping extends AbstractUrlHandlerMapping {
@ -80,7 +82,13 @@ final class WelcomePageHandlerMapping extends AbstractUrlHandlerMapping {
private List<MediaType> getAcceptedMediaTypes(HttpServletRequest request) {
String acceptHeader = request.getHeader(HttpHeaders.ACCEPT);
if (StringUtils.hasText(acceptHeader)) {
return MediaType.parseMediaTypes(acceptHeader);
try {
return MediaType.parseMediaTypes(acceptHeader);
}
catch (InvalidMediaTypeException ex) {
logger.warn("Received invalid Accept header. Assuming all media types are accepted",
logger.isDebugEnabled() ? ex : null);
}
}
return MEDIA_TYPES_ALL;
}

16
spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/web/servlet/WelcomePageHandlerMappingTests.java
View File

@ -23,6 +23,7 @@ import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.springframework.beans.factory.ObjectProvider;
import org.springframework.beans.factory.annotation.Value;
@ -31,6 +32,8 @@ import org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoCon
import org.springframework.boot.autoconfigure.template.TemplateAvailabilityProvider;
import org.springframework.boot.autoconfigure.template.TemplateAvailabilityProviders;
import org.springframework.boot.test.context.runner.WebApplicationContextRunner;
import org.springframework.boot.test.system.CapturedOutput;
import org.springframework.boot.test.system.OutputCaptureExtension;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
@ -54,7 +57,9 @@ import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.
* Tests for {@link WelcomePageHandlerMapping}.
*
* @author Andy Wilkinson
* @author Moritz Halbritter
*/
@ExtendWith(OutputCaptureExtension.class)
class WelcomePageHandlerMappingTests {
private final WebApplicationContextRunner contextRunner = new WebApplicationContextRunner()
@ -164,6 +169,17 @@ class WelcomePageHandlerMappingTests {
});
}
@Test
void logsInvalidAcceptHeader(CapturedOutput output) {
this.contextRunner.withUserConfiguration(TemplateConfiguration.class).run((context) -> {
MockMvc mockMvc = MockMvcBuilders.webAppContextSetup(context).build();
mockMvc.perform(get("/").accept("*/*q=0.8"))
.andExpect(status().isOk())
.andExpect(content().string("index template"));
});
assertThat(output).contains("Received invalid Accept header. Assuming all media types are accepted");
}
@Configuration(proxyBeanMethods = false)
static class HandlerMappingConfiguration {