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https://github.com/ergochat/ergo.git
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137 lines
3.9 KiB
Go
137 lines
3.9 KiB
Go
// Copyright (c) 2019 Shivaram Lingamneni
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// released under the MIT license
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package cloaks
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import (
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"net"
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"reflect"
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"testing"
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)
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func assertEqual(supplied, expected interface{}, t *testing.T) {
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if !reflect.DeepEqual(supplied, expected) {
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t.Errorf("expected %v but got %v", expected, supplied)
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}
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}
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func easyParseIP(ipstr string) (result net.IP) {
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result = net.ParseIP(ipstr)
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if result == nil {
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panic(ipstr)
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}
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return
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}
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func cloakConfForTesting() CloakConfig {
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config := CloakConfig{
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Enabled: true,
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Netname: "oragono",
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secret: "_BdVPWB5sray7McbFmeuJL996yaLgG4l9tEyficGXKg",
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CidrLenIPv4: 32,
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CidrLenIPv6: 64,
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NumBits: 80,
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}
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config.Initialize()
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return config
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}
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func TestCloakDeterminism(t *testing.T) {
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config := cloakConfForTesting()
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v4ip := easyParseIP("8.8.8.8").To4()
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assertEqual(config.ComputeCloak(v4ip), "d2z5guriqhzwazyr.oragono", t)
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// use of the 4-in-6 mapping should not affect the cloak
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v6mappedIP := v4ip.To16()
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assertEqual(config.ComputeCloak(v6mappedIP), "d2z5guriqhzwazyr.oragono", t)
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v6ip := easyParseIP("2001:0db8::1")
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assertEqual(config.ComputeCloak(v6ip), "w7ren6nxii6f3i3d.oragono", t)
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// same CIDR, so same cloak:
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v6ipsamecidr := easyParseIP("2001:0db8::2")
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assertEqual(config.ComputeCloak(v6ipsamecidr), "w7ren6nxii6f3i3d.oragono", t)
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v6ipdifferentcidr := easyParseIP("2001:0db9::1")
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// different CIDR, different cloak:
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assertEqual(config.ComputeCloak(v6ipdifferentcidr), "ccmptyrjwsxv4f4d.oragono", t)
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// cloak values must be sensitive to changes in the secret key
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config.SetSecret("HJcXK4lLawxBE4-9SIdPji_21YiL3N5r5f5-SPNrGVY")
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assertEqual(config.ComputeCloak(v4ip), "4khy3usk8mfu42pe.oragono", t)
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assertEqual(config.ComputeCloak(v6mappedIP), "4khy3usk8mfu42pe.oragono", t)
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assertEqual(config.ComputeCloak(v6ip), "mxpk3c83vdxkek9j.oragono", t)
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assertEqual(config.ComputeCloak(v6ipsamecidr), "mxpk3c83vdxkek9j.oragono", t)
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}
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func TestCloakShortv4Cidr(t *testing.T) {
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config := CloakConfig{
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Enabled: true,
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Netname: "oragono",
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secret: "_BdVPWB5sray7McbFmeuJL996yaLgG4l9tEyficGXKg",
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CidrLenIPv4: 24,
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CidrLenIPv6: 64,
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NumBits: 60,
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}
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config.Initialize()
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v4ip := easyParseIP("8.8.8.8")
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assertEqual(config.ComputeCloak(v4ip), "3cay3zc72tnui.oragono", t)
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v4ipsamecidr := easyParseIP("8.8.8.9")
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assertEqual(config.ComputeCloak(v4ipsamecidr), "3cay3zc72tnui.oragono", t)
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}
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func TestCloakZeroBits(t *testing.T) {
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config := cloakConfForTesting()
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config.NumBits = 0
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config.Netname = "example.com"
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config.Initialize()
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v4ip := easyParseIP("8.8.8.8").To4()
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assertEqual(config.ComputeCloak(v4ip), "example.com", t)
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}
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func TestCloakDisabled(t *testing.T) {
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config := cloakConfForTesting()
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config.Enabled = false
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v4ip := easyParseIP("8.8.8.8").To4()
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assertEqual(config.ComputeCloak(v4ip), "", t)
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}
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func BenchmarkCloaks(b *testing.B) {
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config := cloakConfForTesting()
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v6ip := easyParseIP("2001:0db8::1")
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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config.ComputeCloak(v6ip)
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}
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}
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func TestAccountCloak(t *testing.T) {
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config := cloakConfForTesting()
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// just assert that we get all distinct values
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assertEqual(config.ComputeAccountCloak("shivaram"), "8yu8kunudb45ztxm.oragono", t)
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assertEqual(config.ComputeAccountCloak("dolph🐬n"), "hhgeqsvzeagv3wjw.oragono", t)
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assertEqual(config.ComputeAccountCloak("SHIVARAM"), "bgx32x4r7qzih4uh.oragono", t)
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assertEqual(config.ComputeAccountCloak("ed"), "j5autmgxtdjdyzf4.oragono", t)
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}
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func TestAccountCloakCollisions(t *testing.T) {
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config := cloakConfForTesting()
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v4ip := easyParseIP("97.97.97.97")
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v4cloak := config.ComputeCloak(v4ip)
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// "aaaa" is the same bytestring as 97.97.97.97
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aaaacloak := config.ComputeAccountCloak("aaaa")
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if v4cloak == aaaacloak {
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t.Errorf("cloak collision between 97.97.97.97 and aaaa: %s", v4cloak)
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}
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}
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func BenchmarkAccountCloaks(b *testing.B) {
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config := cloakConfForTesting()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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config.ComputeAccountCloak("shivaram")
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}
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}
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