SPF ip-records have an optional prefix appended

2 years ago · d213dae57c
parent 1b488aed5b
commit d213dae57c
1 changed files with 4 additions and 2 deletions
--- a/app/src/main/java/eu/faircode/email/ActivityDmarc.java
+++ b/app/src/main/java/eu/faircode/email/ActivityDmarc.java
@ -272,9 +272,11 @@ public class ActivityDmarc extends ActivityBase {
                                                            ip = ip.toLowerCase(Locale.ROOT);
                                                            if (ip.startsWith("ip4:") || ip.startsWith("ip6:")) {
                                                                String[] net = ip.substring(4).split("/");
-                                                                if (net.length != 2)
+                                                                if (net.length > 2)
                                                                    continue;
-                                                                Integer prefix = Helper.parseInt(net[1]);
+                                                                Integer prefix = ip.startsWith("ip4:") ? 32 : 64;
+                                                                if (net.length == 2)
+                                                                    prefix = Helper.parseInt(net[1]);
                                                                if (prefix == null)
                                                                    continue;
                                                                if (ConnectionHelper.inSubnet(text, net[0], prefix)) {