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Limit length of references header

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M66B
2021-03-27 15:28:01 +01:00
parent 9fb6afd762
commit a5e0d8f086
2 changed files with 16 additions and 2 deletions
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15
app/src/main/java/eu/faircode/email/MessageHelper.java
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@@ -197,8 +197,19 @@ public class MessageHelper {
}
// References
if (message.references != null)
imessage.addHeader("References", message.references);
if (message.references != null) {
// https://tools.ietf.org/html/rfc5322#section-2.1.1
// Each line of characters MUST be no more than 998 characters
String references = message.references;
int hlen = "References: ".length();
int sp = references.indexOf(' ');
while (references.length() > 998 - hlen && sp > 0) {
Log.i("Dropping reference=" + references.substring(0, sp));
references = references.substring(sp);
sp = references.indexOf(' ');
}
imessage.addHeader("References", references);
}
if (message.inreplyto != null)
imessage.addHeader("In-Reply-To", message.inreplyto);
imessage.addHeader(HEADER_CORRELATION_ID, message.msgid);