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Avoid dependency on WebUtils for extracting file extension 

Issue: SPR-14479
(cherry picked from commit adc595b)
This commit is contained in:
Juergen Hoeller 2016-07-19 23:30:33 +02:00
parent e0d81b97bb
commit b583aa1579
5 changed files with 66 additions and 15 deletions
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13
spring-web/src/main/java/org/springframework/web/accept/PathExtensionContentNegotiationStrategy.java
View File

@ -35,8 +35,8 @@ import org.springframework.util.ClassUtils;
import org.springframework.util.StringUtils;
import org.springframework.web.HttpMediaTypeNotAcceptableException;
import org.springframework.web.context.request.NativeWebRequest;
import org.springframework.web.util.UriUtils;
import org.springframework.web.util.UrlPathHelper;
import org.springframework.web.util.WebUtils;
/**
* A {@code ContentNegotiationStrategy} that resolves the file extension in the
@ -118,9 +118,8 @@ public class PathExtensionContentNegotiationStrategy extends AbstractMappingCont
return null;
}
String path = this.urlPathHelper.getLookupPathForRequest(request);
String filename = WebUtils.extractFullFilenameFromUrlPath(path);
String extension = StringUtils.getFilenameExtension(filename);
return (StringUtils.hasText(extension)) ? extension.toLowerCase(Locale.ENGLISH) : null;
String extension = UriUtils.extractFileExtension(path);
return (StringUtils.hasText(extension) ? extension.toLowerCase(Locale.ENGLISH) : null);
}
@Override
@ -128,7 +127,7 @@ public class PathExtensionContentNegotiationStrategy extends AbstractMappingCont
throws HttpMediaTypeNotAcceptableException {
if (this.useJaf && JAF_PRESENT) {
MediaType mediaType = JafMediaTypeFactory.getMediaType("file." + extension);
MediaType mediaType = ActivationMediaTypeFactory.getMediaType("file." + extension);
if (mediaType != null && !MediaType.APPLICATION_OCTET_STREAM.equals(mediaType)) {
return mediaType;
}
@ -157,7 +156,7 @@ public class PathExtensionContentNegotiationStrategy extends AbstractMappingCont
mediaType = lookupMediaType(extension);
}
if (mediaType == null && JAF_PRESENT) {
mediaType = JafMediaTypeFactory.getMediaType(filename);
mediaType = ActivationMediaTypeFactory.getMediaType(filename);
}
if (MediaType.APPLICATION_OCTET_STREAM.equals(mediaType)) {
mediaType = null;
@ -169,7 +168,7 @@ public class PathExtensionContentNegotiationStrategy extends AbstractMappingCont
/**
* Inner class to avoid hard-coded dependency on JAF.
*/
private static class JafMediaTypeFactory {
private static class ActivationMediaTypeFactory {
private static final FileTypeMap fileTypeMap;

27
spring-web/src/main/java/org/springframework/web/util/UriUtils.java
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@ -1,5 +1,5 @@
/*
* Copyright 2002-2015 the original author or authors.
* Copyright 2002-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -34,6 +34,7 @@ import org.springframework.util.Assert;
* </ul>
*
* @author Arjen Poutsma
* @author Juergen Hoeller
* @since 3.0
* @see <a href="http://www.ietf.org/rfc/rfc3986.txt">RFC 3986</a>
*/
@ -213,4 +214,28 @@ public abstract class UriUtils {
return (changed ? new String(bos.toByteArray(), encoding) : source);
}
/**
* Extract the file extension from the given URI path.
* @param path the URI path (e.g. "/products/index.html")
* @return the extracted file extension (e.g. "html")
* @since 4.3.2
*/
public static String extractFileExtension(String path) {
int end = path.indexOf('?');
if (end == -1) {
end = path.indexOf('#');
if (end == -1) {
end = path.length();
}
}
int begin = path.lastIndexOf('/', end) + 1;
int paramIndex = path.indexOf(';', begin);
end = (paramIndex != -1 && paramIndex < end ? paramIndex : end);
int extIndex = path.lastIndexOf('.', end);
if (extIndex != -1 && extIndex > begin) {
return path.substring(extIndex + 1, end);
}
return null;
}
}

14
spring-web/src/main/java/org/springframework/web/util/WebUtils.java
View File

@ -1,5 +1,5 @@
/*
* Copyright 2002-2015 the original author or authors.
* Copyright 2002-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -278,7 +278,6 @@ public abstract class WebUtils {
return realPath;
}
/**
* Determine the session id of the given request, if any.
* @param request current HTTP request
@ -353,7 +352,9 @@ public abstract class WebUtils {
* @param clazz the class to instantiate for a new attribute
* @return the value of the session attribute, newly created if not found
* @throws IllegalArgumentException if the session attribute could not be instantiated
* @deprecated as of Spring 4.3.2, in favor of custom code for such purposes
*/
@Deprecated
public static Object getOrCreateSessionAttribute(HttpSession session, String name, Class<?> clazz)
throws IllegalArgumentException {
@ -527,7 +528,9 @@ public abstract class WebUtils {
* and the values as corresponding attribute values. Keys need to be Strings.
* @param request current HTTP request
* @param attributes the attributes Map
* @deprecated as of Spring 4.3.2, in favor of custom code for such purposes
*/
@Deprecated
public static void exposeRequestAttributes(ServletRequest request, Map<String, ?> attributes) {
Assert.notNull(request, "Request must not be null");
Assert.notNull(attributes, "Attributes Map must not be null");
@ -689,7 +692,9 @@ public abstract class WebUtils {
* @param currentPage the current page, to be returned as fallback
* if no target page specified
* @return the page specified in the request, or current page if not found
* @deprecated as of Spring 4.3.2, in favor of custom code for such purposes
*/
@Deprecated
public static int getTargetPage(ServletRequest request, String paramPrefix, int currentPage) {
Enumeration<String> paramNames = request.getParameterNames();
while (paramNames.hasMoreElements()) {
@ -713,7 +718,9 @@ public abstract class WebUtils {
* Correctly resolves nested paths such as "/products/view.html" as well.
* @param urlPath the request URL path (e.g. "/index.html")
* @return the extracted URI filename (e.g. "index")
* @deprecated as of Spring 4.3.2, in favor of custom code for such purposes
*/
@Deprecated
public static String extractFilenameFromUrlPath(String urlPath) {
String filename = extractFullFilenameFromUrlPath(urlPath);
int dotIndex = filename.lastIndexOf('.');
@ -729,7 +736,10 @@ public abstract class WebUtils {
* "/products/view.html" and remove any path and or query parameters.
* @param urlPath the request URL path (e.g. "/products/index.html")
* @return the extracted URI filename (e.g. "index.html")
* @deprecated as of Spring 4.3.2, in favor of custom code for such purposes
* (or {@link UriUtils#extractFileExtension} for the file extension use case)
*/
@Deprecated
public static String extractFullFilenameFromUrlPath(String urlPath) {
int end = urlPath.indexOf('?');
if (end == -1) {

21
spring-web/src/test/java/org/springframework/web/util/UriUtilsTests.java
View File

@ -1,5 +1,5 @@
/*
* Copyright 2002-2014 the original author or authors.
* Copyright 2002-2016 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -24,6 +24,7 @@ import static org.junit.Assert.*;
/**
* @author Arjen Poutsma
* @author Juergen Hoeller
*/
public class UriUtilsTests {
@ -104,4 +105,22 @@ public class UriUtilsTests {
UriUtils.decode("foo%2", ENC);
}
@Test
public void extractFileExtension() {
assertEquals("html", UriUtils.extractFileExtension("index.html"));
assertEquals("html", UriUtils.extractFileExtension("/index.html"));
assertEquals("html", UriUtils.extractFileExtension("/products/view.html"));
assertEquals("html", UriUtils.extractFileExtension("/products/view.html#/a"));
assertEquals("html", UriUtils.extractFileExtension("/products/view.html#/path/a"));
assertEquals("html", UriUtils.extractFileExtension("/products/view.html#/path/a.do"));
assertEquals("html", UriUtils.extractFileExtension("/products/view.html?param=a"));
assertEquals("html", UriUtils.extractFileExtension("/products/view.html?param=/path/a"));
assertEquals("html", UriUtils.extractFileExtension("/products/view.html?param=/path/a.do"));
assertEquals("html", UriUtils.extractFileExtension("/products/view.html?param=/path/a#/path/a"));
assertEquals("html", UriUtils.extractFileExtension("/products/view.html?param=/path/a.do#/path/a.do"));
assertEquals("html", UriUtils.extractFileExtension("/products;q=11/view.html?param=/path/a.do"));
assertEquals("html", UriUtils.extractFileExtension("/products;q=11/view.html;r=22?param=/path/a.do"));
assertEquals("html", UriUtils.extractFileExtension("/products;q=11/view.html;r=22;s=33?param=/path/a.do"));
}
}

6
spring-webmvc/src/main/java/org/springframework/web/servlet/support/ServletUriComponentsBuilder.java
View File

@ -28,8 +28,8 @@ import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;
import org.springframework.web.util.UriComponents;
import org.springframework.web.util.UriComponentsBuilder;
import org.springframework.web.util.UriUtils;
import org.springframework.web.util.UrlPathHelper;
import org.springframework.web.util.WebUtils;
/**
* A UriComponentsBuilder that extracts information from the HttpServletRequest.
@ -44,7 +44,6 @@ public class ServletUriComponentsBuilder extends UriComponentsBuilder {
/**
* Default constructor. Protected to prevent direct instantiation.
*
* @see #fromContextPath(HttpServletRequest)
* @see #fromServletMapping(HttpServletRequest)
* @see #fromRequest(HttpServletRequest)
@ -219,8 +218,7 @@ public class ServletUriComponentsBuilder extends UriComponentsBuilder {
public String removePathExtension() {
String extension = null;
if (this.originalPath != null) {
String filename = WebUtils.extractFullFilenameFromUrlPath(this.originalPath);
extension = StringUtils.getFilenameExtension(filename);
extension = UriUtils.extractFileExtension(this.originalPath);
if (!StringUtils.isEmpty(extension)) {
int end = this.originalPath.length() - (extension.length() + 1);
replacePath(this.originalPath.substring(0, end));