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Scrub IP addresses before logging

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This commit is contained in:
Torsten Grote
2016-08-23 14:56:48 -03:00
parent ca094620d8
commit 8b56e082b3
5 changed files with 97 additions and 35 deletions
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48
briar-core/src/org/briarproject/util/PrivacyUtils.java
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@@ -1,9 +1,57 @@
package org.briarproject.util;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
public class PrivacyUtils {
public static String scrubOnion(String onion) {
// keep first three characters of onion address
return onion.substring(0, 3) + "[_scrubbed_]";
}
public static String scrubMacAddress(String address) {
if (address == null) return null;
// this is a fake address we need to know about
if (address.equals("02:00:00:00:00:00")) return address;
// keep first and last octet of MAC address
return address.substring(0, 3) +
"[scrubbed]" +
address.substring(14, 17);
}
public static String scrubInetAddress(InetAddress address) {
// don't scrub link and site local addresses
if (address.isLinkLocalAddress() || address.isSiteLocalAddress())
return address.toString();
// completely scrub IPv6 addresses
if (address instanceof Inet6Address) return "[scrubbed]";
// keep first and last octet of IPv4 addresses
return scrubInetAddress(address.toString());
}
public static String scrubInetAddress(String address) {
if (address == null) return null;
int firstDot = address.indexOf(".");
if (firstDot == -1) return "[scrubbed]";
String prefix = address.substring(0, firstDot + 1);
int lastDot = address.lastIndexOf(".");
String suffix = address.substring(lastDot, address.length());
return prefix + "[scrubbed]" + suffix;
}
public static String scrubSocketAddress(InetSocketAddress address) {
InetAddress inetAddress = address.getAddress();
return scrubInetAddress(inetAddress);
}
public static String scrubSocketAddress(SocketAddress address) {
if (address instanceof InetSocketAddress)
return scrubSocketAddress((InetSocketAddress) address);
return scrubInetAddress(address.toString());
}
}