Merge pull request #122 from 9seconds/close-connections

Make cloaking more robust
This commit is contained in:
Sergey Arkhipov
2019-12-04 10:17:39 +03:00
committed by GitHub
10 changed files with 206 additions and 51 deletions
+3 -20
View File
@@ -8,7 +8,6 @@ import (
"io"
"net"
"strconv"
"sync"
"time"
"github.com/9seconds/mtg/antireplay"
@@ -101,6 +100,8 @@ func (c *ClientProtocol) tlsHandshake(conn io.ReadWriter) error {
}
func (c *ClientProtocol) cloakHost(clientConn io.ReadWriteCloser) {
stats.Stats.CloakedRequest()
addr := net.JoinHostPort(config.C.CloakHost, strconv.Itoa(config.C.CloakPort))
hostConn, err := net.Dial("tcp", addr)
@@ -108,25 +109,7 @@ func (c *ClientProtocol) cloakHost(clientConn io.ReadWriteCloser) {
return
}
defer hostConn.Close()
wg := &sync.WaitGroup{}
wg.Add(2)
go c.pipe(hostConn, clientConn, wg)
go c.pipe(clientConn, hostConn, wg)
wg.Wait()
}
func (c *ClientProtocol) pipe(dst io.WriteCloser, src io.Reader, wg *sync.WaitGroup) {
defer func() {
wg.Done()
dst.Close()
}()
io.Copy(dst, src) // nolint: errcheck
cloak(clientConn, hostConn)
}
func MakeClientProtocol() protocol.ClientProtocol {
+71
View File
@@ -0,0 +1,71 @@
package faketls
import (
"context"
"io"
"sync"
"time"
"github.com/9seconds/mtg/wrappers/rwc"
)
const (
cloakLastActivityTimeout = 5 * time.Second
cloakMaxTimeout = 30 * time.Second
)
func cloak(one, another io.ReadWriteCloser) {
defer func() {
one.Close()
another.Close()
}()
channelPing := make(chan struct{}, 1)
ctx, cancel := context.WithCancel(context.Background())
one = rwc.NewPing(ctx, one, channelPing)
another = rwc.NewPing(ctx, another, channelPing)
wg := &sync.WaitGroup{}
wg.Add(2)
go func() {
defer wg.Done()
io.Copy(one, another) // nolint: errcheck
}()
go func() {
defer wg.Done()
io.Copy(another, one) // nolint: errcheck
}()
go func() {
wg.Wait()
cancel()
}()
go func() {
lastActivityTimer := time.NewTimer(cloakLastActivityTimeout)
defer lastActivityTimer.Stop()
maxTimer := time.NewTimer(cloakMaxTimeout)
defer maxTimer.Stop()
for {
select {
case <-channelPing:
lastActivityTimer.Stop()
lastActivityTimer = time.NewTimer(cloakLastActivityTimeout)
case <-ctx.Done():
return
case <-lastActivityTimer.C:
cancel()
return
case <-maxTimer.C:
cancel()
return
}
}
}()
<-ctx.Done()
}
+8 -7
View File
@@ -3,19 +3,20 @@ module github.com/9seconds/mtg
go 1.13
require (
github.com/VictoriaMetrics/fastcache v1.5.2
github.com/VictoriaMetrics/fastcache v1.5.4
github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d
github.com/beevik/ntp v0.2.0
github.com/cespare/xxhash/v2 v2.1.1 // indirect
github.com/prometheus/client_golang v1.2.1
github.com/prometheus/procfs v0.0.7 // indirect
github.com/prometheus/client_model v0.0.0-20191202183732-d1d2010b5bee // indirect
github.com/prometheus/procfs v0.0.8 // indirect
github.com/smira/go-statsd v1.3.1
go.uber.org/atomic v1.5.1 // indirect
go.uber.org/multierr v1.4.0 // indirect
go.uber.org/zap v1.13.0
golang.org/x/crypto v0.0.0-20191122220453-ac88ee75c92c
golang.org/x/net v0.0.0-20191124235446-72fef5d5e266 // indirect
golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e
golang.org/x/tools v0.0.0-20191125011157-cc15fab314e3 // indirect
golang.org/x/crypto v0.0.0-20191202143827-86a70503ff7e
golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f // indirect
golang.org/x/net v0.0.0-20191126235420-ef20fe5d7933 // indirect
golang.org/x/sys v0.0.0-20191128015809-6d18c012aee9
golang.org/x/tools v0.0.0-20191203051722-db047d72ee39 // indirect
gopkg.in/alecthomas/kingpin.v2 v2.2.6
)
+17 -19
View File
@@ -1,9 +1,7 @@
github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
github.com/OneOfOne/xxhash v1.2.5/go.mod h1:eZbhyaAYD41SGSSsnmcpxVoRiQ/MPUTjUdIIOT9Um7Q=
github.com/VictoriaMetrics/fastcache v1.5.2 h1:Erd8iIuBAL9kke8JzM4+WxkKuFkHh3ktwLanJvDgR44=
github.com/VictoriaMetrics/fastcache v1.5.2/go.mod h1:+jv9Ckb+za/P1ZRg/sulP5Ni1v49daAVERr0H3CuscE=
github.com/VictoriaMetrics/fastcache v1.5.4 h1:0BaXbRH01RycJk79OOBwMCXlNryko9z4yEf6RqbP+Xo=
github.com/VictoriaMetrics/fastcache v1.5.4/go.mod h1:ptDBkNMQI4RtmVo8VS/XwRY6RoTu1dAWCbrk+6WsEM8=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc h1:cAKDfWh5VpdgMhJosfJnn5/FoN2SRZ4p7fJNX58YPaU=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751 h1:JYp7IbQjafoB+tBA3gMyHYHrpOtNuDiK/uB5uXxq5wM=
@@ -24,9 +22,6 @@ github.com/beorn7/perks v1.0.0 h1:HWo1m869IqiPhD389kmkxeTalrjNbbJTC8LXupb+sl0=
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/cespare/xxhash v1.1.0 h1:a6HrQnmkObjyL+Gs60czilIUGqrzKutQD6XZog3p+ko=
github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
github.com/cespare/xxhash/v2 v2.0.1-0.20190104013014-3767db7a7e18/go.mod h1:HD5P3vAIAh+Y2GAxg0PrPN1P8WkepXGpjbUPDHJqqKM=
github.com/cespare/xxhash/v2 v2.1.0 h1:yTUvW7Vhb89inJ+8irsUqiWjh8iT6sQPZiQzI6ReGkA=
github.com/cespare/xxhash/v2 v2.1.0/go.mod h1:dgIUBU3pDso/gPgZ1osOZ0iQf77oPR28Tjxl5dIMyVM=
github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
@@ -89,6 +84,8 @@ github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90 h1:S/YWwWx
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4 h1:gQz4mCbXsO+nc9n1hCxHcGA3Zx3Eo+UHZoInFGUIXNM=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/client_model v0.0.0-20191202183732-d1d2010b5bee h1:iBZPTYkGLvdu6+A5TsMUJQkQX9Ad4aCEnSQtdxPuTCQ=
github.com/prometheus/client_model v0.0.0-20191202183732-d1d2010b5bee/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/common v0.4.1 h1:K0MGApIoQvMw27RTdJkPbr3JZ7DNbtxQNyi5STVM6Kw=
github.com/prometheus/common v0.4.1/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
github.com/prometheus/common v0.7.0 h1:L+1lyG48J1zAQXA3RBX/nG/B3gjlHq0zTt2tlbJLyCY=
@@ -99,15 +96,13 @@ github.com/prometheus/procfs v0.0.2 h1:6LJUbpNm42llc4HRCuvApCSWB/WfhuNo9K98Q9sNG
github.com/prometheus/procfs v0.0.2/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
github.com/prometheus/procfs v0.0.5 h1:3+auTFlqw+ZaQYJARz6ArODtkaIwtvBTx3N2NehQlL8=
github.com/prometheus/procfs v0.0.5/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDaekg4FpcdQ=
github.com/prometheus/procfs v0.0.7 h1:RS5GAlMbnkWkhs4+bPocMTmGjYkuCY5djjqEDdXOhcQ=
github.com/prometheus/procfs v0.0.7/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
github.com/prometheus/procfs v0.0.8 h1:+fpWZdT24pJBiqJdAwYBjPSk+5YmQzYNPYzQsdzLkt8=
github.com/prometheus/procfs v0.0.8/go.mod h1:7Qr8sr6344vo1JqZ6HhLceV9o3AJ1Ff+GxbHq6oeK9A=
github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
github.com/smira/go-statsd v1.3.1 h1:JalGiHNdK7GqVAPpg7j0Kwp2jZrz/fCg/B4ZuNuBY2w=
github.com/smira/go-statsd v1.3.1/go.mod h1:1srXJ9/pbnN04G8f4F1jUzsGOnwkPKXciyqpewGlkC4=
github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
github.com/spaolacci/murmur3 v1.0.1-0.20190317074736-539464a789e9/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
@@ -131,18 +126,20 @@ golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnf
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191122220453-ac88ee75c92c h1:/nJuwDLoL/zrqY6gf57vxC+Pi+pZ8bfhpPkicO5H7W4=
golang.org/x/crypto v0.0.0-20191122220453-ac88ee75c92c/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20191202143827-86a70503ff7e h1:egKlR8l7Nu9vHGWbcUV8lqR4987UfUbBd7GbhqGzNYU=
golang.org/x/crypto v0.0.0-20191202143827-86a70503ff7e/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f h1:J5lckAjkw6qYlOZNj90mLYNTEKDvWeuc1yieZ8qUzUE=
golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20191124235446-72fef5d5e266 h1:QuOiA7GCO0OSDzlNlFyOWOywDsjuzW8M2yvBfCqw+cY=
golang.org/x/net v0.0.0-20191124235446-72fef5d5e266/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20191126235420-ef20fe5d7933 h1:e6HwijUxhDe+hPNjZQQn9bA5PW3vNmnN64U2ZW759Lk=
golang.org/x/net v0.0.0-20191126235420-ef20fe5d7933/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4 h1:YUO/7uOKsKeq9UokNS62b8FYywz3ker1l1vDZRCRefw=
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -155,16 +152,17 @@ golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7w
golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191010194322-b09406accb47 h1:/XfQ9z7ib8eEJX2hdgFTZJ/ntt0swNk5oYBziWeTCvY=
golang.org/x/sys v0.0.0-20191010194322-b09406accb47/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e h1:N7DeIrjYszNmSW409R3frPPwglRwMkXSBzwVbkOjLLA=
golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191128015809-6d18c012aee9 h1:ZBzSG/7F4eNKz2L3GE9o300RX0Az1Bw5HF7PDraD+qU=
golang.org/x/sys v0.0.0-20191128015809-6d18c012aee9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5 h1:hKsoRgsbwY1NafxrwTs+k64bikrLBkAgPir1TNCj3Zs=
golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191125011157-cc15fab314e3 h1:aHkNOJLg6a84bdLJN1yjqMSTadeAuaudhEPNSkLAWoA=
golang.org/x/tools v0.0.0-20191125011157-cc15fab314e3/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191125144606-a911d9008d1f/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191203051722-db047d72ee39 h1:zARK4PTmTfx1BC6iKP21qIRjz0nFzFj4ZAlbUy6Q6pM=
golang.org/x/tools v0.0.0-20191203051722-db047d72ee39/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
gopkg.in/alecthomas/kingpin.v2 v2.2.6 h1:jMFz6MfLP0/4fUyZle81rXUoxOBFi19VUFKVDOQfozc=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
+2
View File
@@ -69,7 +69,9 @@ func (p *Proxy) accept(conn net.Conn) {
clientConn, err := clientProtocol.Handshake(clientConn)
if err != nil {
stats.Stats.AuthenticationFailed()
logger.Warnw("Cannot perform client handshake", "error", err)
return
}
+10
View File
@@ -38,6 +38,14 @@ type ReplayDetectedInterface interface {
ReplayDetected()
}
type AuthenticationFailedInterface interface {
AuthenticationFailed()
}
type CloakedRequestInterface interface {
CloakedRequest()
}
type Interface interface {
IngressTrafficInterface
EgressTrafficInterface
@@ -47,4 +55,6 @@ type Interface interface {
TelegramDisconnectedInterface
CrashInterface
ReplayDetectedInterface
AuthenticationFailedInterface
CloakedRequestInterface
}
+12
View File
@@ -55,3 +55,15 @@ func (m multiStats) ReplayDetected() {
go m[i].ReplayDetected()
}
}
func (m multiStats) AuthenticationFailed() {
for i := range m {
go m[i].AuthenticationFailed()
}
}
func (m multiStats) CloakedRequest() {
for i := range m {
go m[i].CloakedRequest()
}
}
+27 -5
View File
@@ -13,11 +13,13 @@ import (
)
type statsPrometheus struct {
connections *prometheus.GaugeVec
telegramConnections *prometheus.GaugeVec
traffic *prometheus.GaugeVec
crashes prometheus.Counter
replayAttacks prometheus.Counter
connections *prometheus.GaugeVec
telegramConnections *prometheus.GaugeVec
traffic *prometheus.GaugeVec
crashes prometheus.Counter
replayAttacks prometheus.Counter
authenticationFailed prometheus.Counter
cloakedRequests prometheus.Counter
}
func (s *statsPrometheus) IngressTraffic(traffic int) {
@@ -87,6 +89,14 @@ func (s *statsPrometheus) ReplayDetected() {
s.replayAttacks.Inc()
}
func (s *statsPrometheus) AuthenticationFailed() {
s.authenticationFailed.Inc()
}
func (s *statsPrometheus) CloakedRequest() {
s.cloakedRequests.Inc()
}
func newStatsPrometheus(mux *http.ServeMux) Interface {
registry := prometheus.NewPedanticRegistry()
@@ -116,6 +126,16 @@ func newStatsPrometheus(mux *http.ServeMux) Interface {
Name: "replay_attacks",
Help: "How many replay attacks were prevented.",
}),
authenticationFailed: prometheus.NewCounter(prometheus.CounterOpts{
Namespace: config.C.StatsNamespace,
Name: "authentication_failed",
Help: "How many authentication failed events we've seen.",
}),
cloakedRequests: prometheus.NewCounter(prometheus.CounterOpts{
Namespace: config.C.StatsNamespace,
Name: "cloaked_requests",
Help: "How many requests were proxified during cloaking.",
}),
}
registry.MustRegister(instance.connections)
@@ -123,6 +143,8 @@ func newStatsPrometheus(mux *http.ServeMux) Interface {
registry.MustRegister(instance.traffic)
registry.MustRegister(instance.crashes)
registry.MustRegister(instance.replayAttacks)
registry.MustRegister(instance.authenticationFailed)
registry.MustRegister(instance.cloakedRequests)
handler := promhttp.HandlerFor(registry, promhttp.HandlerOpts{})
mux.Handle("/", handler)
+8
View File
@@ -137,6 +137,14 @@ func (s *statsStatsd) ReplayDetected() {
s.gauge("replay_attacks", 1)
}
func (s *statsStatsd) AuthenticationFailed() {
s.gauge("authentication_failed", 1)
}
func (s *statsStatsd) CloakedRequest() {
s.gauge("cloaked_requests", 1)
}
func (s *statsStatsd) gauge(metric string, value int64, tags ...*statsStatsdTag) {
key, tagList := s.prepareVals(metric, tags)
s.initGauge(metric, key, tagList)
+48
View File
@@ -0,0 +1,48 @@
package rwc
import (
"context"
"io"
)
type wrapperPing struct {
parent io.ReadWriteCloser
ctx context.Context
channelPing chan<- struct{}
}
func (w *wrapperPing) Read(p []byte) (int, error) {
n, err := w.parent.Read(p)
if err == nil {
select {
case <-w.ctx.Done():
case w.channelPing <- struct{}{}:
}
}
return n, err
}
func (w *wrapperPing) Write(p []byte) (int, error) {
n, err := w.parent.Write(p)
if err == nil {
select {
case <-w.ctx.Done():
case w.channelPing <- struct{}{}:
}
}
return n, err
}
func (w *wrapperPing) Close() error {
return w.parent.Close()
}
func NewPing(ctx context.Context, parent io.ReadWriteCloser, channelPing chan<- struct{}) io.ReadWriteCloser {
return &wrapperPing{
parent: parent,
ctx: ctx,
channelPing: channelPing,
}
}