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markt pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/tomcat.git
commit 7c913da5db338f5976f4ba0dd5dee4c661c1daa6
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Wed Oct 16 17:45:25 2019 +0100
Add a case sensitive / insensitive option to the token list parser
---
.../apache/tomcat/util/http/parser/TokenList.java | 35 +++++++++++++++++++---
1 file changed, 31 insertions(+), 4 deletions(-)
diff --git a/java/org/apache/tomcat/util/http/parser/TokenList.java
b/java/org/apache/tomcat/util/http/parser/TokenList.java
index 9ba88b0..49e50a5 100644
--- a/java/org/apache/tomcat/util/http/parser/TokenList.java
+++ b/java/org/apache/tomcat/util/http/parser/TokenList.java
@@ -29,15 +29,34 @@ public class TokenList {
/**
- * Parses a header of the form 1#token.
+ * Parses a header of the form 1#token, forcing all parsed values to lower
+ * case. This is typically used when header values are case-insensitive.
*
* @param input The header to parse
* @param result The Collection (usually a list of a set) to which the
- * parsed token should be added
+ * parsed token should be added
*
* @throws IOException If an I/O error occurs reading the header
*/
public static void parseTokenList(Reader input, Collection<String> result)
throws IOException {
+ parseTokenList(input, true, result);
+ }
+
+
+ /**
+ * Parses a header of the form 1#token.
+ *
+ * @param input The header to parse
+ * @param forceLowerCase Should parsed tokens be forced to lower case? This
+ * is intended for headers where the values are
+ * case-insensitive
+ * @param result The Collection (usually a list of a set) to which
+ * the parsed token should be added
+ *
+ * @throws IOException If an I/O error occurs reading the header
+ */
+ public static void parseTokenList(Reader input, boolean forceLowerCase,
Collection<String> result)
+ throws IOException {
do {
String fieldName = HttpParser.readToken(input);
@@ -55,10 +74,18 @@ public class TokenList {
SkipResult skipResult = HttpParser.skipConstant(input, ",");
if (skipResult == SkipResult.EOF) {
// EOF
- result.add(fieldName.toLowerCase(Locale.ENGLISH));
+ if (forceLowerCase) {
+ result.add(fieldName.toLowerCase(Locale.ENGLISH));
+ } else {
+ result.add(fieldName);
+ }
break;
} else if (skipResult == SkipResult.FOUND) {
- result.add(fieldName.toLowerCase(Locale.ENGLISH));
+ if (forceLowerCase) {
+ result.add(fieldName.toLowerCase(Locale.ENGLISH));
+ } else {
+ result.add(fieldName);
+ }
continue;
} else {
// Not a token - ignore it
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