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Update cloaking function so the banlist looks right

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This commit is contained in:
calzoneman 2014-08-14 21:57:38 -05:00
parent 722c55e0da
commit 25ab4b62e5
1 changed files with 10 additions and 5 deletions
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15
lib/utilities.js
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@ -276,20 +276,22 @@
return ip; return ip;
} }
function iphash(ip, segment, len) { function iphash(data, len) {
var md5 = crypto.createHash("md5"); var md5 = crypto.createHash("md5");
md5.update(ip); md5.update(data);
md5.update(segment);
return md5.digest("base64").substring(0, len); return md5.digest("base64").substring(0, len);
} }
function cloakIPv4(ip) { function cloakIPv4(ip) {
var parts = ip.split("."); var parts = ip.split(".");
var accumulator = "";
parts = parts.map(function (segment, i) { parts = parts.map(function (segment, i) {
if (i < 2) return segment; if (i < 2) return segment;
return iphash(ip, segment + i, 3); var part = iphash(accumulator + segment + i, 3);
accumulator += segment;
return part;
}); });
while (parts.length < 4) parts.push("*"); while (parts.length < 4) parts.push("*");
@ -299,11 +301,14 @@
function cloakIPv6(ip) { function cloakIPv6(ip) {
var parts = ip.split(":"); var parts = ip.split(":");
parts.splice(4, 4); parts.splice(4, 4);
var accumulator = "";
parts = parts.map(function (segment, i) { parts = parts.map(function (segment, i) {
if (i < 2) return segment; if (i < 2) return segment;
return iphash(ip, segment + i, 4); var part = iphash(accumulator + segment + i, 4);
accumulator += segment;
return part;
}); });
while (parts.length < 4) parts.push("*"); while (parts.length < 4) parts.push("*");