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https://github.com/ergochat/ergo.git
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parent
eef9753912
commit
fd45529d94
@ -155,6 +155,14 @@ func (cidr IPNet) Contains(ip IP) bool {
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return cidr.IP == maskedIP
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}
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func (cidr IPNet) Size() (ones, bits int) {
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if cidr.IP.IsIPv4() {
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return int(cidr.PrefixLen) - 96, 32
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} else {
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return int(cidr.PrefixLen), 128
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}
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}
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// FromNetIPnet converts a net.IPNet into an IPNet.
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func FromNetIPNet(network net.IPNet) (result IPNet) {
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ones, _ := network.Mask.Size()
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@ -2,8 +2,10 @@ package flatip
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import (
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"bytes"
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"fmt"
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"math/rand"
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"net"
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"reflect"
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"testing"
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"time"
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)
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@ -86,6 +88,38 @@ func doMaskingTest(ip net.IP, t *testing.T) {
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}
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}
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func assertEqual(found, expected interface{}) {
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if !reflect.DeepEqual(found, expected) {
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panic(fmt.Sprintf("expected %#v, found %#v", expected, found))
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}
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}
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func TestSize(t *testing.T) {
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_, net, err := ParseCIDR("8.8.8.8/24")
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if err != nil {
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panic(err)
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}
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ones, bits := net.Size()
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assertEqual(ones, 24)
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assertEqual(bits, 32)
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_, net, err = ParseCIDR("2001::0db8/64")
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if err != nil {
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panic(err)
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}
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ones, bits = net.Size()
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assertEqual(ones, 64)
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assertEqual(bits, 128)
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_, net, err = ParseCIDR("2001::0db8/96")
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if err != nil {
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panic(err)
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}
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ones, bits = net.Size()
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assertEqual(ones, 96)
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assertEqual(bits, 128)
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}
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func TestMasking(t *testing.T) {
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for _, ipstr := range testIPStrs {
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doMaskingTest(easyParseIP(ipstr), t)
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13
irc/uban.go
13
irc/uban.go
@ -366,7 +366,14 @@ func ubanInfoHandler(client *Client, target ubanTarget, params []string, rb *Res
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}
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func ubanInfoCIDR(client *Client, target ubanTarget, rb *ResponseBuffer) {
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if target.cidr.PrefixLen == 128 {
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config := client.server.Config()
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// show connection limiter/throttler state if this CIDR is entirely
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// contained in a single limiter/throttler bucket:
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ones, bits := target.cidr.Size()
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showLimiter := (bits == 32 && ones >= config.Server.IPLimits.CidrLenIPv4) ||
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(bits == 128 && ones >= config.Server.IPLimits.CidrLenIPv6)
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sendMaskWarning := (bits == 128 && ones > config.Server.IPLimits.CidrLenIPv6)
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if showLimiter {
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netName, status := client.server.connectionLimiter.Status(target.cidr.IP)
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if status.Exempt {
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rb.Notice(fmt.Sprintf(client.t("IP %s is exempt from connection limits"), target.cidr.IP.String()))
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@ -391,6 +398,10 @@ func ubanInfoCIDR(client *Client, target ubanTarget, rb *ResponseBuffer) {
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rb.Notice(line)
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}
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}
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if sendMaskWarning {
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rb.Notice(fmt.Sprintf(client.t("Note: try evaluating a wider IPv6 CIDR like %s/%d"),
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target.cidr.IP.String(), config.Server.IPLimits.CidrLenIPv6))
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}
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}
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func ubanInfoNickmask(client *Client, target ubanTarget, rb *ResponseBuffer) {
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