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HttpUtil.getCharset() fails for charset in double-quotes (#11373)

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__Motivation__

As described in https://github.com/netty/netty/issues/11370 we should support quoted charset values

__Modification__

Modify `HttpUtil.getCharset(CharSequence contentTypeValue, Charset defaultCharset)` to trim the double-quotes if present.

__Result__

`HttpUtil.getCharset()` now supports quoted charsets. Fixes https://github.com/netty/netty/issues/11370
This commit is contained in:
Nitesh Kant 2021-06-09 03:37:23 -07:00 committed by GitHub
parent e69107ceaf
commit 625a7a1075
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2 changed files with 59 additions and 7 deletions
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11
codec-http/src/main/java/io/netty/handler/codec/http/HttpUtil.java
View File

@ -394,10 +394,15 @@ public final class HttpUtil {
*/
public static Charset getCharset(CharSequence contentTypeValue, Charset defaultCharset) {
if (contentTypeValue != null) {
CharSequence charsetCharSequence = getCharsetAsSequence(contentTypeValue);
if (charsetCharSequence != null) {
CharSequence charsetRaw = getCharsetAsSequence(contentTypeValue);
if (charsetRaw != null) {
if (charsetRaw.length() > 2) { // at least contains 2 quotes(")
if (charsetRaw.charAt(0) == '"' && charsetRaw.charAt(charsetRaw.length() - 1) == '"') {
charsetRaw = charsetRaw.subSequence(1, charsetRaw.length() - 1);
}
}
try {
return Charset.forName(charsetCharSequence.toString());
return Charset.forName(charsetRaw.toString());
} catch (IllegalCharsetNameException ignored) {
// just return the default charset
} catch (UnsupportedCharsetException ignored) {

55
codec-http/src/test/java/io/netty/handler/codec/http/HttpUtilTest.java
View File

@ -76,19 +76,66 @@ public class HttpUtilTest {
@Test
public void testGetCharset() {
String NORMAL_CONTENT_TYPE = "text/html; charset=utf-8";
String UPPER_CASE_NORMAL_CONTENT_TYPE = "TEXT/HTML; CHARSET=UTF-8";
testGetCharsetUtf8("text/html; charset=utf-8");
}
@Test
public void testGetCharsetNoSpace() {
testGetCharsetUtf8("text/html;charset=utf-8");
}
@Test
public void testGetCharsetQuoted() {
testGetCharsetUtf8("text/html; charset=\"utf-8\"");
}
@Test
public void testGetCharsetNoSpaceQuoted() {
testGetCharsetUtf8("text/html;charset=\"utf-8\"");
}
private void testGetCharsetUtf8(String contentType) {
String UPPER_CASE_NORMAL_CONTENT_TYPE = contentType.toUpperCase();
HttpMessage message = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
message.headers().set(HttpHeaderNames.CONTENT_TYPE, NORMAL_CONTENT_TYPE);
message.headers().set(HttpHeaderNames.CONTENT_TYPE, contentType);
assertEquals(CharsetUtil.UTF_8, HttpUtil.getCharset(message));
assertEquals(CharsetUtil.UTF_8, HttpUtil.getCharset(NORMAL_CONTENT_TYPE));
assertEquals(CharsetUtil.UTF_8, HttpUtil.getCharset(contentType));
message.headers().set(HttpHeaderNames.CONTENT_TYPE, UPPER_CASE_NORMAL_CONTENT_TYPE);
assertEquals(CharsetUtil.UTF_8, HttpUtil.getCharset(message));
assertEquals(CharsetUtil.UTF_8, HttpUtil.getCharset(UPPER_CASE_NORMAL_CONTENT_TYPE));
}
@Test
public void testGetCharsetNoLeadingQuotes() {
testGetCharsetInvalidQuotes("text/html;charset=utf-8\"");
}
@Test
public void testGetCharsetNoTrailingQuotes() {
testGetCharsetInvalidQuotes("text/html;charset=\"utf-8");
}
@Test
public void testGetCharsetOnlyQuotes() {
testGetCharsetInvalidQuotes("text/html;charset=\"\"");
}
private static void testGetCharsetInvalidQuotes(String contentType) {
String UPPER_CASE_NORMAL_CONTENT_TYPE = contentType.toUpperCase();
HttpMessage message = new DefaultHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.OK);
message.headers().set(HttpHeaderNames.CONTENT_TYPE, contentType);
assertEquals(CharsetUtil.ISO_8859_1, HttpUtil.getCharset(message, CharsetUtil.ISO_8859_1));
assertEquals(CharsetUtil.ISO_8859_1, HttpUtil.getCharset(contentType, CharsetUtil.ISO_8859_1));
message.headers().set(HttpHeaderNames.CONTENT_TYPE, UPPER_CASE_NORMAL_CONTENT_TYPE);
assertEquals(CharsetUtil.ISO_8859_1, HttpUtil.getCharset(message, CharsetUtil.ISO_8859_1));
assertEquals(CharsetUtil.ISO_8859_1, HttpUtil.getCharset(UPPER_CASE_NORMAL_CONTENT_TYPE,
CharsetUtil.ISO_8859_1));
}
@Test
public void testGetCharsetIfNotLastParameter() {
String NORMAL_CONTENT_TYPE_WITH_PARAMETERS = "application/soap-xml; charset=utf-8; "