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FairEmail
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Merge pull request #211 from keykey7/dmarc-spf-ip-without-prefix

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allow DMARC row validation for SPF IP without prefix
pull/212/head
Marcel Bokhorst 2 years ago committed by GitHub
parent 1b488aed5b 901c4394a6
commit dbac9f4f4c
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1 changed files with 4 additions and 2 deletions
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6
app/src/main/java/eu/faircode/email/ActivityDmarc.java
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@ -272,9 +272,11 @@ public class ActivityDmarc extends ActivityBase {
ip = ip.toLowerCase(Locale.ROOT); ip = ip.toLowerCase(Locale.ROOT);
if (ip.startsWith("ip4:") || ip.startsWith("ip6:")) { if (ip.startsWith("ip4:") || ip.startsWith("ip6:")) {
String[] net = ip.substring(4).split("/"); String[] net = ip.substring(4).split("/");
if (net.length != 2) if (net.length > 2)
continue; continue;
Integer prefix = Helper.parseInt(net[1]); Integer prefix = ip.startsWith("ip4:") ? 32 : 128;
if (net.length == 2)
prefix = Helper.parseInt(net[1]);
if (prefix == null) if (prefix == null)
continue; continue;
if (ConnectionHelper.inSubnet(text, net[0], prefix)) { if (ConnectionHelper.inSubnet(text, net[0], prefix)) {

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