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Make sure the References header doesn't exceed 998 characters and the value won't get Q-encoded. Thanks to fiouzy for providing the patch.

Fixes issue 1559
This commit is contained in:
cketti 2010-05-21 12:20:32 +00:00
parent 6afb8c8506
commit c29722a56c

View File

@ -368,6 +368,34 @@ public class MimeMessage extends Message
@Override
public void setReferences(String references) throws MessagingException
{
/*
* Make sure the References header doesn't exceed 998 characters and
* won't get (Q-)encoded later. Otherwise some clients will break
* threads apart.
*
* For more information see issue 1559.
*/
// Make sure separator is SPACE to prevent Q-encoding when TAB is encountered
references = references.replaceAll("\\s+", " ");
final int limit = 986; // "References: "
final int originalLength = references.length();
if (originalLength >= limit)
{
// Find start of first reference
final int start = references.indexOf('<');
// First reference + SPACE
final String firstReference = references.substring(start,
references.indexOf('<', start + 1));
// Find longest tail
final String tail = references.substring(references.indexOf('<',
firstReference.length() + originalLength - limit));
references = firstReference + tail;
}
setHeader("References", references);
}