Mirrors/FairEmail
1
0
Fork 0
mirror of https://github.com/M66B/FairEmail.git synced 2026-03-28 11:55:20 +01:00
Code Issues Packages Projects Releases Wiki Activity

Filter SPF records

Browse Source
This commit is contained in:
M66B
2023-11-14 07:36:46 +01:00
parent a15293a73a
commit 4033d07417
2 changed files with 20 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
app/src/main/java/eu/faircode/email/DnsHelper.java
View File

@@ -48,6 +48,7 @@ import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.List;
import java.util.Locale;
import java.util.concurrent.Executor;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
@@ -81,6 +82,13 @@ public class DnsHelper {
@NonNull
static DnsRecord[] lookup(Context context, String name, String type, int timeout) throws UnknownHostException {
String filter = null;
int colon = type.indexOf(':');
if (colon > 0) {
filter = type.substring(colon + 1);
type = type.substring(0, colon);
}
int rtype;
switch (type) {
case "ns":
@@ -214,6 +222,9 @@ public class DnsHelper {
TXTRecord txt = (TXTRecord) record;
for (Object content : txt.getStrings()) {
String text = content.toString();
if (filter != null &&
(TextUtils.isEmpty(text) || !text.toLowerCase(Locale.ROOT).startsWith(filter)))
continue;
int i = 0;
int slash = text.indexOf('\\', i);
while (slash >= 0 && slash + 4 < text.length()) {