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feat: update traefik sdk

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This commit is contained in:
xiaobing.wang
2024-08-09 11:37:49 +08:00
parent d060377caa
commit 4e033ed5f3
36 changed files with 2427 additions and 38 deletions
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2
sdk/traefik/.traefik.yml
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@@ -1,7 +1,7 @@
displayName: Chaitin Safeline WAF displayName: Chaitin Safeline WAF
type: middleware type: middleware
import: github.com/xbingW/traefik-safeline import: github.com/chaitin/traefik-safeline
summary: 'Traefik plugin to proxy requests to safeline waf.t serves as a reverse proxy access to protect your website from network attacks that including OWASP attacks, zero-day attacks, web crawlers, vulnerability scanning, vulnerability exploit, http flood and so on.' summary: 'Traefik plugin to proxy requests to safeline waf.t serves as a reverse proxy access to protect your website from network attacks that including OWASP attacks, zero-day attacks, web crawlers, vulnerability scanning, vulnerability exploit, http flood and so on.'

2
sdk/traefik/README.md
View File

@@ -29,7 +29,7 @@ The following declaration (given here in YAML) defines a plugin:
experimental: experimental:
plugins: plugins:
safeline: safeline:
moduleName: github.com/xbingW/traefik-safeline moduleName: github.com/chaitin/traefik-safeline
version: v1.0.0 version: v1.0.0
``` ```

6
sdk/traefik/go.mod
View File

@@ -1,5 +1,7 @@
module github.com/xbingW/traefik-safeline module github.com/chaitin/traefik-safeline
go 1.17 go 1.17
require github.com/xbingW/t1k v1.2.1 require golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028 // indirect
require github.com/chaitin/t1k-go v1.5.0

82
sdk/traefik/safeline.go
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@@ -2,12 +2,13 @@ package traefik_safeline
import ( import (
"context" "context"
"encoding/json" "fmt"
"log" "log"
"net/http" "net/http"
"os" "os"
"sync"
"github.com/xbingW/t1k" t1k "github.com/chaitin/t1k-go"
) )
// Package example a example plugin. // Package example a example plugin.
@@ -15,61 +16,84 @@ import (
// Config the plugin configuration. // Config the plugin configuration.
type Config struct { type Config struct {
// Addr is the address for the detector // Addr is the address for the detector
Addr string `yaml:"addr"` Addr string `yaml:"addr"`
// Get ip from header, if not set, get ip from remote addr PoolSize int `yaml:"pool_size"`
IpHeader string `yaml:"ipHeader"`
// When ip_header has multiple ip, use this to get the ip
//
//for example, X-Forwarded-For: ip1, ip2, ip3
// when ip_last_index is 0, the client ip is ip3
// when ip_last_index is 1, the client ip is ip2
// when ip_last_index is 2, the client ip is ip1
IPRightIndex uint `yaml:"ipRightIndex"`
} }
// CreateConfig creates the default plugin configuration. // CreateConfig creates the default plugin configuration.
func CreateConfig() *Config { func CreateConfig() *Config {
return &Config{ return &Config{
Addr: "", Addr: "",
IpHeader: "", PoolSize: 100,
IPRightIndex: 0,
} }
} }
// Safeline a plugin. // Safeline a plugin.
type Safeline struct { type Safeline struct {
next http.Handler next http.Handler
server *t1k.Server
name string name string
config *Config config *Config
logger *log.Logger logger *log.Logger
mu sync.Mutex
} }
// New created a new plugin. // New created a new plugin.
func New(ctx context.Context, next http.Handler, config *Config, name string) (http.Handler, error) { func New(ctx context.Context, next http.Handler, config *Config, name string) (http.Handler, error) {
logger := log.New(os.Stdout, "safeline", log.LstdFlags)
logger.Printf("config: %+v", config)
return &Safeline{ return &Safeline{
next: next, next: next,
name: name, name: name,
config: config, config: config,
logger: log.New(os.Stdout, "safeline", log.LstdFlags), logger: logger,
}, nil }, nil
} }
func (s *Safeline) ServeHTTP(rw http.ResponseWriter, req *http.Request) { func (s *Safeline) initServer() error {
d := t1k.NewDetector(t1k.Config{ if s.server != nil {
Addr: s.config.Addr, return nil
IpHeader: s.config.IpHeader,
IPRightIndex: s.config.IPRightIndex,
})
resp, err := d.DetectorRequest(req)
if err != nil {
s.logger.Printf("Failed to detect request: %v", err)
} }
if resp != nil && !resp.Allowed() { s.mu.Lock()
rw.WriteHeader(resp.StatusCode()) defer s.mu.Unlock()
if err := json.NewEncoder(rw).Encode(resp.BlockMessage()); err != nil { if s.server == nil {
s.logger.Printf("Failed to encode block message: %v", err) server, err := t1k.NewWithPoolSize(s.config.Addr, s.config.PoolSize)
if err != nil {
return err
} }
s.server = server
}
return nil
}
func (s *Safeline) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
defer func() {
if r := recover(); r != nil {
s.logger.Printf("panic: %s", r)
}
}()
if err := s.initServer(); err != nil {
s.logger.Printf("error in initServer: %s", err)
s.next.ServeHTTP(rw, req)
return
}
rw.Header().Set("X-Chaitin-waf", "safeline")
result, err := s.server.DetectHttpRequest(req)
if err != nil {
s.logger.Printf("error in detection: \n%+v\n", err)
s.next.ServeHTTP(rw, req)
return
}
if result.Blocked() {
rw.WriteHeader(result.StatusCode())
msg := fmt.Sprintf(`{"code": %d, "success":false, "message": "blocked by Chaitin SafeLine Web Application Firewall", "event_id": "%s"}`,
result.StatusCode(),
result.EventID(),
)
_, _ = rw.Write([]byte(msg))
return return
} }
s.next.ServeHTTP(rw, req) s.next.ServeHTTP(rw, req)
//rw.WriteHeader(http.StatusForbidden)
//_, _ = rw.Write([]byte("Inject by safeline\n"))
} }

201
sdk/traefik/vendor/github.com/chaitin/t1k-go/License generated vendored Normal file
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@@ -0,0 +1,201 @@
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Copyright 2023 Beijing Chaitin Technology Co., Ltd.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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5
sdk/traefik/vendor/github.com/chaitin/t1k-go/README.md generated vendored Normal file
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@@ -0,0 +1,5 @@
# t1k-go
Go implementation of the T1K protocol for [Chaitin/SafeLine](https://github.com/chaitin/safeline) Web Application Firewall.

101
sdk/traefik/vendor/github.com/chaitin/t1k-go/conn.go generated vendored Normal file
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@@ -0,0 +1,101 @@
package t1k
import (
"net"
"net/http"
"github.com/chaitin/t1k-go/detection"
"github.com/chaitin/t1k-go/t1k"
"github.com/chaitin/t1k-go/misc"
)
type conn struct {
socket net.Conn
server *Server
failing bool
}
func makeConn(socket net.Conn, server *Server) *conn {
return &conn{
socket: socket,
server: server,
failing: false,
}
}
func (c *conn) onErr(err error) {
if err != nil {
// re-open socket to recover from possible error state
c.socket.Close()
sock, errConnect := c.server.socketFactory()
if errConnect != nil {
c.failing = true
return
}
c.socket = sock
}
}
func (c *conn) Close() {
if c.socket == nil {
return
}
c.socket.Close()
}
func (c *conn) DetectRequestInCtx(dc *detection.DetectionContext) (*detection.Result, error) {
ret, err := DetectRequestInCtx(c.socket, dc)
c.onErr(err)
return ret, err
}
func (c *conn) DetectResponseInCtx(dc *detection.DetectionContext) (*detection.Result, error) {
ret, err := DetectResponseInCtx(c.socket, dc)
c.onErr(err)
return ret, misc.ErrorWrap(err, "")
}
func (c *conn) Detect(dc *detection.DetectionContext) (*detection.Result, *detection.Result, error) {
retReq, retRsp, err := Detect(c.socket, dc)
c.onErr(err)
return retReq, retRsp, misc.ErrorWrap(err, "")
}
func (c *conn) DetectHttpRequest(req *http.Request) (*detection.Result, error) {
ret, err := DetectHttpRequest(c.socket, req)
c.onErr(err)
return ret, err
}
func (c *conn) DetectRequest(req detection.Request) (*detection.Result, error) {
ret, err := DetectRequest(c.socket, req)
c.onErr(err)
return ret, err
}
func (c *conn) Heartbeat() {
err := DoHeartbeat(c.socket)
c.onErr(err)
}
func (c *conn) WriteSection(sec t1k.Section) error {
err := t1k.WriteSection(sec, c.socket)
return misc.ErrorWrap(err, "")
}
func (c *conn) ReadSection() (t1k.Section, error) {
sec, err := t1k.ReadSection(c.socket)
if err != nil {
return nil, misc.ErrorWrap(err, "")
}
return sec, nil
}
func (c *conn) ReadFullSection() (t1k.Section, error) {
sec, err := t1k.ReadFullSection(c.socket)
if err != nil {
return nil, misc.ErrorWrap(err, "")
}
return sec, nil
}

253
sdk/traefik/vendor/github.com/chaitin/t1k-go/detect.go generated vendored Normal file
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@@ -0,0 +1,253 @@
package t1k
import (
"bytes"
"fmt"
"io"
"net/http"
"github.com/chaitin/t1k-go/detection"
"github.com/chaitin/t1k-go/t1k"
"github.com/chaitin/t1k-go/misc"
)
func writeDetectionRequest(w io.Writer, req detection.Request) error {
{
data, err := req.Header()
if err != nil {
return err
}
sec := t1k.MakeSimpleSection(t1k.TAG_HEADER|t1k.MASK_FIRST, data)
err = t1k.WriteSection(sec, w)
if err != nil {
return err
}
}
{
bodySize, bodyReadCloser, err := req.Body()
if err == nil {
defer bodyReadCloser.Close()
sec := t1k.MakeReaderSection(t1k.TAG_BODY, bodySize, bodyReadCloser)
err = t1k.WriteSection(sec, w)
if err != nil {
return err
}
}
}
{
data, err := req.Extra()
if err != nil {
return err
}
sec := t1k.MakeSimpleSection(t1k.TAG_EXTRA, data)
err = t1k.WriteSection(sec, w)
if err != nil {
return err
}
}
{
sec := t1k.MakeSimpleSection(t1k.TAG_VERSION|t1k.MASK_LAST, []byte("Proto:2\n"))
err := t1k.WriteSection(sec, w)
if err != nil {
return err
}
}
return nil
}
func writeDetectionResponse(w io.Writer, rsp detection.Response) error {
{
data, err := rsp.RequestHeader()
if err != nil {
return misc.ErrorWrap(err, "")
}
sec := t1k.MakeSimpleSection(t1k.TAG_HEADER|t1k.MASK_FIRST, data)
err = t1k.WriteSection(sec, w)
if err != nil {
return misc.ErrorWrap(err, "")
}
}
{
data, err := rsp.Header()
if err != nil {
return misc.ErrorWrap(err, "")
}
sec := t1k.MakeSimpleSection(t1k.TAG_RSP_HEADER, data)
err = t1k.WriteSection(sec, w)
if err != nil {
return misc.ErrorWrap(err, "")
}
}
{
bodySize, bodyReadCloser, err := rsp.Body()
if err == nil {
defer bodyReadCloser.Close()
sec := t1k.MakeReaderSection(t1k.TAG_RSP_BODY, bodySize, bodyReadCloser)
err = t1k.WriteSection(sec, w)
if err != nil {
return err
}
}
}
{
data, err := rsp.Extra()
if err != nil {
return misc.ErrorWrap(err, "")
}
sec := t1k.MakeSimpleSection(t1k.TAG_RSP_EXTRA, data)
err = t1k.WriteSection(sec, w)
if err != nil {
return misc.ErrorWrap(err, "")
}
}
{
sec := t1k.MakeSimpleSection(t1k.TAG_VERSION, []byte("Proto:2\n"))
err := t1k.WriteSection(sec, w)
if err != nil {
return misc.ErrorWrap(err, "")
}
}
{
data, err := rsp.T1KContext()
if err != nil {
return misc.ErrorWrap(err, "")
}
sec := t1k.MakeSimpleSection(t1k.TAG_CONTEXT|t1k.MASK_LAST, data)
err = t1k.WriteSection(sec, w)
if err != nil {
return misc.ErrorWrap(err, "")
}
}
return nil
}
func readDetectionResult(r io.Reader) (*detection.Result, error) {
var ret detection.Result
parseSection := func(sec t1k.Section) error {
var buf bytes.Buffer
err := sec.WriteBody(&buf)
if err != nil {
return misc.ErrorWrap(err, "")
}
tag := sec.Header().Tag.Strip()
switch tag {
case t1k.TAG_HEADER:
if len(buf.Bytes()) != 1 {
return fmt.Errorf("len(T1K_HEADER) != 1")
}
ret.Head = buf.Bytes()[0]
case t1k.TAG_BODY:
ret.Body = buf.Bytes()
case t1k.TAG_ALOG:
ret.Alog = buf.Bytes()
case t1k.TAG_EXTRA_HEADER:
ret.ExtraHeader = buf.Bytes()
case t1k.TAG_EXTRA_BODY:
ret.ExtraBody = buf.Bytes()
case t1k.TAG_CONTEXT:
ret.T1KContext = buf.Bytes()
case t1k.TAG_COOKIE:
ret.Cookie = buf.Bytes()
case t1k.TAG_WEB_LOG:
ret.WebLog = buf.Bytes()
}
return nil
}
sec, err := t1k.ReadFullSection(r)
if err != nil {
return nil, misc.ErrorWrap(err, "")
}
if !sec.Header().Tag.IsFirst() {
return nil, fmt.Errorf("first section IsFirst != true, middle of another msg or corrupt stream, with <%x>", sec.Header().Tag)
}
for {
err = parseSection(sec)
if err != nil {
return nil, misc.ErrorWrap(err, "")
}
if sec.Header().Tag.IsLast() {
break
}
sec, err = t1k.ReadSection(r)
if err != nil {
return nil, misc.ErrorWrap(err, "")
}
}
return &ret, nil
}
func doDetectRequest(s io.ReadWriter, req detection.Request) (*detection.Result, error) {
err := writeDetectionRequest(s, req)
if err != nil {
return nil, misc.ErrorWrap(err, "")
}
ret, err := readDetectionResult(s)
if err != nil {
return nil, misc.ErrorWrap(err, "")
}
ret.Objective = detection.RO_REQUEST
return ret, nil
}
func doDetectResponse(s io.ReadWriter, rsp detection.Response) (*detection.Result, error) {
err := writeDetectionResponse(s, rsp)
if err != nil {
return nil, misc.ErrorWrap(err, "")
}
ret, err := readDetectionResult(s)
if err != nil {
return nil, misc.ErrorWrap(err, "")
}
ret.Objective = detection.RO_RESPONSE
return ret, nil
}
func DetectRequestInCtx(s io.ReadWriter, dc *detection.DetectionContext) (*detection.Result, error) {
ret, err := doDetectRequest(s, dc.Request)
if err != nil {
return nil, err
}
dc.ProcessResult(ret)
return ret, nil
}
func DetectResponseInCtx(s io.ReadWriter, dc *detection.DetectionContext) (*detection.Result, error) {
ret, err := doDetectResponse(s, dc.Response)
if err != nil {
return nil, misc.ErrorWrap(err, "")
}
dc.ProcessResult(ret)
return ret, nil
}
func Detect(s io.ReadWriter, dc *detection.DetectionContext) (*detection.Result, *detection.Result, error) {
var reqResult *detection.Result
var rspResult *detection.Result
if dc.Request != nil {
ret, err := doDetectRequest(s, dc.Request)
if err != nil {
return nil, nil, misc.ErrorWrap(err, "")
}
reqResult = ret
dc.ProcessResult(reqResult)
}
if dc.Response != nil {
ret, err := doDetectResponse(s, dc.Response)
if err != nil {
return nil, nil, misc.ErrorWrap(err, "")
}
rspResult = ret
dc.ProcessResult(rspResult)
}
return reqResult, rspResult, nil
}
func DetectHttpRequest(s io.ReadWriter, req *http.Request) (*detection.Result, error) {
dc, _ := detection.MakeContextWithRequest(req)
return doDetectRequest(s, detection.MakeHttpRequestInCtx(req, dc))
}
func DetectRequest(s io.ReadWriter, req detection.Request) (*detection.Result, error) {
return doDetectRequest(s, req)
}

88
sdk/traefik/vendor/github.com/chaitin/t1k-go/detection/context.go generated vendored Normal file
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@@ -0,0 +1,88 @@
package detection
import (
"errors"
"net/http"
"github.com/chaitin/t1k-go/misc"
)
type DetectionContext struct {
UUID string
Scheme string
ProxyName string
RemoteAddr string
Protocol string
RemotePort uint16
LocalAddr string
LocalPort uint16
ReqBeginTime int64
RspBeginTime int64
T1KContext []byte
Request Request
Response Response
}
func New() *DetectionContext {
return &DetectionContext{
UUID: misc.GenUUID(),
Scheme: "http",
ProxyName: "go-sdk",
RemoteAddr: "127.0.0.1",
RemotePort: 30001,
LocalAddr: "127.0.0.1",
LocalPort: 80,
Protocol: "HTTP/1.1",
}
}
func MakeContextWithRequest(req *http.Request) (*DetectionContext, error) {
if req == nil {
return nil, errors.New("nil http.request or response")
}
wrapReq := &HttpRequest{
req: req,
}
// ignore GetRemoteIP error,not sure request record remote ip
remoteIP, _ := wrapReq.GetRemoteIP()
remotePort, _ := wrapReq.GetRemotePort()
localAddr, err := wrapReq.GetUpstreamAddress()
if err != nil {
return nil, err
}
localPort, err := wrapReq.GetUpstreamPort()
if err != nil {
return nil, err
}
scheme := "http"
if req.TLS != nil {
scheme = "https"
}
context := &DetectionContext{
UUID: misc.GenUUID(),
Scheme: scheme,
ProxyName: "go-sdk",
RemoteAddr: remoteIP,
RemotePort: remotePort,
LocalAddr: localAddr,
LocalPort: localPort,
ReqBeginTime: misc.Now(),
Request: wrapReq,
Protocol: req.Proto,
}
wrapReq.dc = context
return context, nil
}
func (dc *DetectionContext) ProcessResult(r *Result) {
if r.Objective == RO_REQUEST {
dc.T1KContext = r.T1KContext
}
}

93
sdk/traefik/vendor/github.com/chaitin/t1k-go/detection/extra.go generated vendored Normal file
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@@ -0,0 +1,93 @@
package detection
import (
"fmt"
"github.com/chaitin/t1k-go/misc"
)
func MakeRequestExtra(
scheme string,
proxyName string,
remoteAddr string,
remotePort uint16,
localAddr string,
localPort uint16,
uuid string,
hasRspIfOK string,
hasRspIfBlock string,
reqBeginTime int64,
) []byte {
format := "Scheme:%s\n" +
"ProxyName:%s\n" +
"RemoteAddr:%s\n" +
"RemotePort:%d\n" +
"LocalAddr:%s\n" +
"LocalPort:%d\n" +
"UUID:%s\n" +
"HasRspIfOK:%s\n" +
"HasRspIfBlock:%s\n" +
"ReqBeginTime:%d\n"
return []byte(fmt.Sprintf(
format,
scheme,
proxyName,
remoteAddr,
remotePort,
localAddr,
localPort,
uuid,
hasRspIfOK,
hasRspIfBlock,
reqBeginTime,
))
}
func MakeResponseExtra(
scheme string,
proxyName string,
remoteAddr string,
remotePort uint16,
localAddr string,
localPort uint16,
uuid string,
rspBeginTime int64,
) []byte {
format := "Scheme:%s\n" +
"ProxyName:%s\n" +
"RemoteAddr:%s\n" +
"RemotePort:%d\n" +
"LocalAddr:%s\n" +
"LocalPort:%d\n" +
"UUID:%s\n" +
"RspBeginTime:%d\n"
return []byte(fmt.Sprintf(
format,
scheme,
proxyName,
remoteAddr,
remotePort,
localAddr,
localPort,
uuid,
rspBeginTime,
))
}
func PlaceholderRequestExtra(uuid string) []byte {
return MakeRequestExtra("http", "go-sdk", "127.0.0.1", 30001, "127.0.0.1", 80, uuid, "n", "n", misc.Now())
}
func GenRequestExtra(dc *DetectionContext) []byte {
hasRsp := "u"
if dc.Response != nil {
hasRsp = "y"
}
return MakeRequestExtra(dc.Scheme, dc.ProxyName, dc.RemoteAddr, dc.RemotePort, dc.LocalAddr, dc.LocalPort, dc.UUID, hasRsp, hasRsp, dc.ReqBeginTime)
}
func GenResponseExtra(dc *DetectionContext) []byte {
return MakeResponseExtra(dc.Scheme, dc.ProxyName, dc.RemoteAddr, dc.RemotePort, dc.LocalAddr, dc.LocalPort, dc.UUID, dc.RspBeginTime)
}

132
sdk/traefik/vendor/github.com/chaitin/t1k-go/detection/request.go generated vendored Normal file
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@@ -0,0 +1,132 @@
package detection
import (
"bytes"
"errors"
"fmt"
"io"
"net"
"net/http"
"strconv"
"github.com/chaitin/t1k-go/misc"
)
type Request interface {
Header() ([]byte, error)
Body() (uint32, io.ReadCloser, error)
Extra() ([]byte, error)
}
type HttpRequest struct {
req *http.Request
dc *DetectionContext // this is optional
}
func MakeHttpRequest(req *http.Request) *HttpRequest {
return &HttpRequest{
req: req,
}
}
func MakeHttpRequestInCtx(req *http.Request, dc *DetectionContext) *HttpRequest {
ret := &HttpRequest{
req: req,
dc: dc,
}
dc.Request = ret
if dc.ReqBeginTime == 0 {
dc.ReqBeginTime = misc.Now()
}
return ret
}
func (r *HttpRequest) GetUpstreamAddress() (string, error) {
if r.req.Host == "" {
return "", errors.New("empty Host in request")
}
host, _, err := net.SplitHostPort(r.req.Host)
if err != nil {
return r.req.Host, nil // OK; there probably was no port
}
return host, nil
}
func (r *HttpRequest) GetUpstreamPort() (uint16, error) {
_, port, err := net.SplitHostPort(r.req.Host)
if err != nil {
if r.req.TLS != nil {
return 443, nil
} else {
return 80, nil
}
}
if portNum, err := strconv.Atoi(port); err == nil {
return uint16(portNum), nil
}
return 0, errors.New("wrong value of port")
}
func (r *HttpRequest) GetRemoteIP() (string, error) {
host, _, err := net.SplitHostPort(r.req.RemoteAddr)
if err != nil {
return r.req.RemoteAddr, nil
}
return host, nil
}
func (r *HttpRequest) GetRemotePort() (uint16, error) {
_, port, _ := net.SplitHostPort(r.req.RemoteAddr)
if portNum, err := strconv.Atoi(port); err == nil {
return uint16(portNum), nil
}
return 0, errors.New("wrong value of port")
}
func (r *HttpRequest) Header() ([]byte, error) {
var buf bytes.Buffer
proto := r.req.Proto
if r.dc != nil {
if r.dc.Protocol != "" {
proto = r.dc.Protocol
} else {
r.dc.Protocol = proto
}
}
startLine := fmt.Sprintf("%s %s %s\r\n", r.req.Method, r.req.URL.RequestURI(), proto)
_, err := buf.Write([]byte(startLine))
if err != nil {
return nil, err
}
_, err = buf.Write([]byte(fmt.Sprintf("Host: %s\r\n", r.req.Host)))
if err != nil {
return nil, err
}
err = r.req.Header.Write(&buf)
if err != nil {
return nil, err
}
_, err = buf.Write([]byte("\r\n"))
if err != nil {
return nil, err
}
return buf.Bytes(), nil
}
func (r *HttpRequest) Body() (uint32, io.ReadCloser, error) {
bodyBytes, err := io.ReadAll(r.req.Body)
if err != nil {
return 0, nil, err
}
r.req.Body = io.NopCloser(bytes.NewReader(bodyBytes))
return uint32(len(bodyBytes)), io.NopCloser(bytes.NewReader(bodyBytes)), nil
}
func (r *HttpRequest) Extra() ([]byte, error) {
if r.dc == nil {
return PlaceholderRequestExtra(misc.GenUUID()), nil
}
return GenRequestExtra(r.dc), nil
}

72
sdk/traefik/vendor/github.com/chaitin/t1k-go/detection/response.go generated vendored Normal file
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@@ -0,0 +1,72 @@
package detection
import (
"bytes"
"fmt"
"io"
"net/http"
"github.com/chaitin/t1k-go/misc"
)
type Response interface {
RequestHeader() ([]byte, error)
Header() ([]byte, error)
Body() (uint32, io.ReadCloser, error)
Extra() ([]byte, error)
T1KContext() ([]byte, error)
}
type HttpResponse struct {
rsp *http.Response
dc *DetectionContext // this is a must-have
}
func MakeHttpResponseInCtx(rsp *http.Response, dc *DetectionContext) *HttpResponse {
ret := &HttpResponse{
rsp: rsp,
dc: dc,
}
dc.Response = ret
dc.RspBeginTime = misc.Now()
return ret
}
func (r *HttpResponse) RequestHeader() ([]byte, error) {
return r.dc.Request.Header()
}
func (r *HttpResponse) Header() ([]byte, error) {
var buf bytes.Buffer
statusLine := fmt.Sprintf("HTTP/1.1 %s\n", r.rsp.Status)
_, err := buf.Write([]byte(statusLine))
if err != nil {
return nil, err
}
err = r.rsp.Header.Write(&buf)
if err != nil {
return nil, err
}
_, err = buf.Write([]byte("\r\n"))
if err != nil {
return nil, err
}
return buf.Bytes(), nil
}
func (r *HttpResponse) Body() (uint32, io.ReadCloser, error) {
bodyBytes, err := io.ReadAll(r.rsp.Body)
if err != nil {
return 0, nil, misc.ErrorWrapf(err, "get body size %d", len(bodyBytes))
}
r.rsp.Body = io.NopCloser(bytes.NewReader(bodyBytes))
return uint32(len(bodyBytes)), io.NopCloser(bytes.NewReader(bodyBytes)), nil
}
func (r *HttpResponse) Extra() ([]byte, error) {
return GenResponseExtra(r.dc), nil
}
func (r *HttpResponse) T1KContext() ([]byte, error) {
return r.dc.T1KContext, nil
}

76
sdk/traefik/vendor/github.com/chaitin/t1k-go/detection/result.go generated vendored Normal file
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@@ -0,0 +1,76 @@
package detection
import (
"log"
"net/http"
"regexp"
"strconv"
)
type ResultObjective int
const (
RO_REQUEST ResultObjective = 0
RO_RESPONSE ResultObjective = 1
)
type Result struct {
Objective ResultObjective
Head byte
Body []byte
Alog []byte
ExtraHeader []byte
ExtraBody []byte
T1KContext []byte
Cookie []byte
WebLog []byte
}
func (r *Result) Passed() bool {
return r.Head == '.'
}
func (r *Result) Blocked() bool {
return !r.Passed()
}
func (r *Result) StatusCode() int {
str := string(r.Body)
if str == "" {
return http.StatusForbidden
}
code, err := strconv.Atoi(str)
if err != nil {
log.Printf("t1k convert status code failed: %v", err)
return http.StatusForbidden
}
return code
}
func (r *Result) BlockMessage() map[string]interface{} {
return map[string]interface{}{
"status": r.StatusCode(),
"success": false,
"message": "blocked by Chaitin SafeLine Web Application Firewall",
"event_id": r.EventID(),
}
}
func (r *Result) EventID() string {
extra := string(r.ExtraBody)
if extra == "" {
return ""
}
// <!-- event_id: e1impksyjq0gl92le6odi0fnobi270cj -->
re, err := regexp.Compile(`<\!--\s*event_id:\s*([a-zA-Z0-9]+)\s*-->\s*`)
if err != nil {
log.Printf("t1k compile regexp failed: %v", err)
return ""
}
matches := re.FindStringSubmatch(extra)
if len(matches) < 2 {
log.Printf("t1k regexp not match event id: %s", extra)
return ""
}
return matches[1]
}

17
sdk/traefik/vendor/github.com/chaitin/t1k-go/heartbeat.go generated vendored Normal file
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@@ -0,0 +1,17 @@
package t1k
import (
"io"
"github.com/chaitin/t1k-go/t1k"
)
func DoHeartbeat(s io.ReadWriter) error {
h := t1k.MakeHeader(t1k.MASK_FIRST|t1k.MASK_LAST, 0)
_, err := s.Write(h.Serialize())
if err != nil {
return err
}
_, err = readDetectionResult(s)
return err
}

81
sdk/traefik/vendor/github.com/chaitin/t1k-go/misc/dump_hex.go generated vendored Normal file
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@@ -0,0 +1,81 @@
package misc
import (
"fmt"
"io"
"os"
)
var asciiPrintableMap map[byte]bool
func init() {
asciiPrintableMap = make(map[byte]bool)
for i := 0; i < 256; i++ {
asciiPrintableMap[byte(i)] = false
}
s := "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~ "
for _, ch := range []byte(s) {
asciiPrintableMap[ch] = true
}
}
func isAsciiPrintable(b byte) bool {
return asciiPrintableMap[b]
}
func DumpHex(w io.Writer, b []byte) error {
lines := len(b) / 16
for i := 0; i < lines; i += 1 {
srep := ""
for j := 0; j < 16; j += 1 {
it := b[16*i+j]
_, err := w.Write([]byte(fmt.Sprintf("%02x ", it)))
if err != nil {
return err
}
if isAsciiPrintable(it) {
srep += string([]byte{it})
} else {
srep += "."
}
}
_, err := w.Write([]byte("| " + srep + "\n"))
if err != nil {
return err
}
}
remain := len(b) - 16*lines
srep := ""
j := 0
for ; j < remain; j += 1 {
it := b[16*lines+j]
_, err := w.Write([]byte(fmt.Sprintf("%02x ", it)))
if err != nil {
return err
}
if isAsciiPrintable(it) {
srep += string([]byte{it})
} else {
srep += "."
}
}
for ; j < 16; j++ {
_, err := w.Write([]byte(" "))
if err != nil {
return err
}
srep += " "
}
_, err := w.Write([]byte("| " + srep + "\n"))
if err != nil {
return err
}
return nil
}
func PrintHex(b []byte) {
err := DumpHex(os.Stdout, b)
if err != nil {
fmt.Printf("error in PrintHex() : %s\n", err.Error())
}
}

58
sdk/traefik/vendor/github.com/chaitin/t1k-go/misc/errors.go generated vendored Normal file
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@@ -0,0 +1,58 @@
package misc
import (
"fmt"
"golang.org/x/xerrors"
)
type wrapError struct {
message string
next error
frame xerrors.Frame
}
func (e *wrapError) Unwrap() error {
return e.next
}
func (e *wrapError) Error() string {
if e.next == nil {
return e.message
}
return fmt.Sprintf("%s: %v", e.message, e.next)
}
func (e *wrapError) Format(f fmt.State, c rune) {
xerrors.FormatError(e, f, c)
}
func (e *wrapError) FormatError(p xerrors.Printer) error {
p.Print(e.message)
if p.Detail() {
e.frame.Format(p)
}
return e.next
}
func wrap(err error, message string, skip int) error {
if err == nil {
return nil
}
return &wrapError{
message: message,
next: err,
frame: xerrors.Caller(skip),
}
}
// Wrap returns a error annotating `err` with `message` and the caller's frame.
// Wrap returns nil if `err` is nil.
func ErrorWrap(err error, message string) error {
return wrap(err, message, 2)
}
// Wrapf returns a error annotating `err` with `message` formatted and the caller's frame.
func ErrorWrapf(err error, message string, args ...interface{}) error {
return wrap(err, fmt.Sprintf(message, args...), 2)
}

17
sdk/traefik/vendor/github.com/chaitin/t1k-go/misc/gen_uuid.go generated vendored Normal file
View File

@@ -0,0 +1,17 @@
package misc
import (
"encoding/hex"
)
var (
rng *MT19937 = NewMT19937()
)
func GenUUID() string {
u := make([]byte, 16)
rng.RandBytes(u)
u[6] = (u[6] | 0x40) & 0x4F
u[8] = (u[8] | 0x80) & 0xBF
return hex.EncodeToString(u)
}

102
sdk/traefik/vendor/github.com/chaitin/t1k-go/misc/mt19937.go generated vendored Normal file
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@@ -0,0 +1,102 @@
package misc
import (
"crypto/rand"
"encoding/binary"
"sync"
"time"
)
const (
n = 312
m = 156
seedMask = 170298
hiMask uint64 = 0xffffffff80000000
loMask uint64 = 0x000000007fffffff
matrixA uint64 = 0xB5026F5AA96619E9
)
type MT19937 struct {
state []uint64
index int
mut sync.Mutex
}
func NewMT19937WithSeed(seed int64) *MT19937 {
mt := &MT19937{
state: make([]uint64, n),
index: n,
}
mt.mut.Lock()
defer mt.mut.Unlock()
mt.state[0] = uint64(seed)
for i := uint64(1); i < n; i++ {
mt.state[i] = 6364136223846793005*(mt.state[i-1]^(mt.state[i-1]>>62)) + i
}
return mt
}
func NewMT19937() *MT19937 {
var seed int64
b := make([]byte, 8)
if _, err := rand.Read(b); err == nil {
seed = int64(binary.LittleEndian.Uint64(b[:]))
}
seed = seed ^ time.Now().UnixNano() ^ seedMask
return NewMT19937WithSeed(seed)
}
func (mt *MT19937) Uint64() uint64 {
mt.mut.Lock()
defer mt.mut.Unlock()
x := mt.state
if mt.index >= n {
for i := 0; i < n-m; i++ {
y := (x[i] & hiMask) | (x[i+1] & loMask)
x[i] = x[i+m] ^ (y >> 1) ^ ((y & 1) * matrixA)
}
for i := n - m; i < n-1; i++ {
y := (x[i] & hiMask) | (x[i+1] & loMask)
x[i] = x[i+(m-n)] ^ (y >> 1) ^ ((y & 1) * matrixA)
}
y := (x[n-1] & hiMask) | (x[0] & loMask)
x[n-1] = x[m-1] ^ (y >> 1) ^ ((y & 1) * matrixA)
mt.index = 0
}
y := x[mt.index]
y ^= (y >> 29) & 0x5555555555555555
y ^= (y << 17) & 0x71D67FFFEDA60000
y ^= (y << 37) & 0xFFF7EEE000000000
y ^= (y >> 43)
mt.index++
return y
}
func (mt *MT19937) RandBytes(p []byte) {
for len(p) >= 8 {
val := mt.Uint64()
p[0] = byte(val)
p[1] = byte(val >> 8)
p[2] = byte(val >> 16)
p[3] = byte(val >> 24)
p[4] = byte(val >> 32)
p[5] = byte(val >> 40)
p[6] = byte(val >> 48)
p[7] = byte(val >> 56)
p = p[8:]
}
if len(p) > 0 {
val := mt.Uint64()
for i := 0; i < len(p); i++ {
p[i] = byte(val)
val >>= 8
}
}
}

9
sdk/traefik/vendor/github.com/chaitin/t1k-go/misc/now.go generated vendored Normal file
View File

@@ -0,0 +1,9 @@
package misc
import (
"time"
)
func Now() int64 {
return time.Now().UnixNano() / 1e3
}

184
sdk/traefik/vendor/github.com/chaitin/t1k-go/server.go generated vendored Normal file
View File

@@ -0,0 +1,184 @@
package t1k
import (
"log"
"net"
"net/http"
"os"
"sync"
"time"
"github.com/chaitin/t1k-go/detection"
"github.com/chaitin/t1k-go/misc"
)
const (
DEFAULT_POOL_SIZE = 8
HEARTBEAT_INTERVAL = 20
)
type Server struct {
socketFactory func() (net.Conn, error)
poolCh chan *conn
poolSize int
count int
closeCh chan struct{}
logger *log.Logger
mu sync.Mutex
}
func (s *Server) newConn() error {
s.mu.Lock()
defer s.mu.Unlock()
sock, err := s.socketFactory()
if err != nil {
return err
}
s.count += 1
s.poolCh <- makeConn(sock, s)
return nil
}
func (s *Server) GetConn() (*conn, error) {
if s.count < s.poolSize {
for i := 0; i < (s.poolSize - s.count); i++ {
err := s.newConn()
if err != nil {
return nil, err
}
}
}
c := <-s.poolCh
return c, nil
}
func (s *Server) PutConn(c *conn) {
s.mu.Lock()
defer s.mu.Unlock()
if c.failing {
s.count -= 1
c.Close()
} else {
s.poolCh <- c
}
}
func (s *Server) broadcastHeartbeat() {
l := len(s.poolCh)
for i := 0; i < l; i++ {
select {
case c := <-s.poolCh:
c.Heartbeat()
s.PutConn(c)
default:
return
}
}
}
func (s *Server) runHeartbeatCo() {
for {
timer := time.NewTimer(HEARTBEAT_INTERVAL * time.Second)
select {
case <-s.closeCh:
return
case <-timer.C:
}
s.broadcastHeartbeat()
}
}
func NewFromSocketFactoryWithPoolSize(socketFactory func() (net.Conn, error), poolSize int) (*Server, error) {
ret := &Server{
socketFactory: socketFactory,
poolCh: make(chan *conn, poolSize),
poolSize: poolSize,
closeCh: make(chan struct{}),
logger: log.New(os.Stdout, "snserver", log.LstdFlags),
mu: sync.Mutex{},
}
for i := 0; i < poolSize; i++ {
err := ret.newConn()
if err != nil {
return nil, err
}
}
go ret.runHeartbeatCo()
return ret, nil
}
func NewFromSocketFactory(socketFactory func() (net.Conn, error)) (*Server, error) {
return NewFromSocketFactoryWithPoolSize(socketFactory, DEFAULT_POOL_SIZE)
}
func NewWithPoolSize(addr string, poolSize int) (*Server, error) {
return NewFromSocketFactoryWithPoolSize(func() (net.Conn, error) {
return net.Dial("tcp", addr)
}, poolSize)
}
func New(addr string) (*Server, error) {
return NewWithPoolSize(addr, DEFAULT_POOL_SIZE)
}
func (s *Server) DetectRequestInCtx(dc *detection.DetectionContext) (*detection.Result, error) {
c, err := s.GetConn()
if err != nil {
return nil, err
}
defer s.PutConn(c)
return c.DetectRequestInCtx(dc)
}
func (s *Server) DetectResponseInCtx(dc *detection.DetectionContext) (*detection.Result, error) {
c, err := s.GetConn()
if err != nil {
return nil, misc.ErrorWrap(err, "")
}
defer s.PutConn(c)
return c.DetectResponseInCtx(dc)
}
func (s *Server) Detect(dc *detection.DetectionContext) (*detection.Result, *detection.Result, error) {
c, err := s.GetConn()
if err != nil {
return nil, nil, misc.ErrorWrap(err, "")
}
reqResult, rspResult, err := c.Detect(dc)
if err == nil {
s.PutConn(c)
}
return reqResult, rspResult, err
}
func (s *Server) DetectHttpRequest(req *http.Request) (*detection.Result, error) {
c, err := s.GetConn()
if err != nil {
return nil, err
}
defer s.PutConn(c)
return c.DetectHttpRequest(req)
}
func (s *Server) DetectRequest(req detection.Request) (*detection.Result, error) {
c, err := s.GetConn()
if err != nil {
return nil, err
}
defer s.PutConn(c)
return c.DetectRequest(req)
}
// blocks until all pending detection is completed
func (s *Server) Close() {
close(s.closeCh)
for i := 0; i < s.count; i++ {
c, err := s.GetConn()
if err != nil {
return
}
c.Close()
}
}

35
sdk/traefik/vendor/github.com/chaitin/t1k-go/t1k/header.go generated vendored Normal file
View File

@@ -0,0 +1,35 @@
package t1k
import (
"encoding/binary"
)
const (
T1K_HEADER_SIZE uint64 = 5
)
type Header struct {
Tag Tag
Size uint32
}
func MakeHeader(tag Tag, size uint32) Header {
return Header{
Tag: tag,
Size: size,
}
}
func (h Header) Serialize() []byte {
b := make([]byte, 5)
b[0] = byte(uint8(h.Tag))
binary.LittleEndian.PutUint32(b[1:], h.Size)
return b
}
func DeserializeHeader(b []byte) Header {
return MakeHeader(
Tag(uint8(b[0])),
binary.LittleEndian.Uint32(b[1:]),
)
}

95
sdk/traefik/vendor/github.com/chaitin/t1k-go/t1k/section.go generated vendored Normal file
View File

@@ -0,0 +1,95 @@
package t1k
import (
"bytes"
"io"
"github.com/chaitin/t1k-go/misc"
)
type Section interface {
Header() Header
WriteBody(io.Writer) error
}
type SimpleSection struct {
tag Tag
body []byte
}
func MakeSimpleSection(tag Tag, body []byte) *SimpleSection {
return &SimpleSection{
tag: tag,
body: body,
}
}
func (msg *SimpleSection) Header() Header {
return MakeHeader(msg.tag, uint32(len(msg.body)))
}
func (msg *SimpleSection) WriteBody(w io.Writer) error {
_, err := w.Write(msg.body)
return err
}
type ReaderSection struct {
tag Tag
size uint32
reader io.Reader
}
func MakeReaderSection(tag Tag, size uint32, reader io.Reader) *ReaderSection {
return &ReaderSection{
tag: tag,
size: size,
reader: reader,
}
}
func (msg *ReaderSection) Header() Header {
return MakeHeader(msg.tag, msg.size)
}
func (msg *ReaderSection) WriteBody(w io.Writer) error {
_, err := io.CopyN(w, msg.reader, int64(msg.size))
return misc.ErrorWrap(err, "")
}
func WriteSection(s Section, w io.Writer) error {
h := s.Header()
_, err := w.Write(h.Serialize())
if err != nil {
return misc.ErrorWrap(err, "")
}
return s.WriteBody(w)
}
// returns a *ReaderSection, must call its WriteBody
// before next call to r
func ReadSection(r io.Reader) (Section, error) {
bHeader := make([]byte, T1K_HEADER_SIZE)
_, err := io.ReadFull(r, bHeader)
if err != nil {
return nil, err
}
h := DeserializeHeader(bHeader)
bodyReader := io.LimitReader(r, int64(h.Size))
return MakeReaderSection(h.Tag, h.Size, bodyReader), nil
}
// returns a *SimpleSection
func ReadFullSection(r io.Reader) (Section, error) {
bHeader := make([]byte, T1K_HEADER_SIZE)
_, err := io.ReadFull(r, bHeader)
if err != nil {
return nil, misc.ErrorWrap(err, "")
}
h := DeserializeHeader(bHeader)
var buf bytes.Buffer
_, err = io.CopyN(&buf, r, int64(h.Size))
if err != nil {
return nil, misc.ErrorWrap(err, "")
}
return MakeSimpleSection(h.Tag, buf.Bytes()), nil
}

39
sdk/traefik/vendor/github.com/chaitin/t1k-go/t1k/tag.go generated vendored Normal file
View File

@@ -0,0 +1,39 @@
package t1k
type Tag uint8
const (
TAG_HEADER Tag = 0x01
TAG_BODY Tag = 0x02
TAG_EXTRA Tag = 0x03
TAG_RSP_HEADER Tag = 0x11
TAG_RSP_BODY Tag = 0x12
TAG_RSP_EXTRA Tag = 0x13
TAG_VERSION Tag = 0x20
TAG_ALOG Tag = 0x21
TAG_STAT Tag = 0x22
TAG_EXTRA_HEADER Tag = 0x23
TAG_EXTRA_BODY Tag = 0x24
TAG_CONTEXT Tag = 0x25
TAG_COOKIE Tag = 0x26
TAG_WEB_LOG Tag = 0x27
TAG_USER_DATA Tag = 0x28
TAG_BOT_QUERY Tag = 0x29
TAG_BOT_BODY Tag = 0x30
MASK_TAG Tag = 0x3f
MASK_FIRST Tag = 0x40
MASK_LAST Tag = 0x80
)
func (t Tag) IsFirst() bool {
return !(0 == (t & MASK_FIRST))
}
func (t Tag) IsLast() bool {
return !(0 == (t & MASK_LAST))
}
func (t Tag) Strip() Tag {
return t & MASK_TAG
}

27
sdk/traefik/vendor/golang.org/x/xerrors/LICENSE generated vendored Normal file
View File

@@ -0,0 +1,27 @@
Copyright (c) 2019 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

22
sdk/traefik/vendor/golang.org/x/xerrors/PATENTS generated vendored Normal file
View File

@@ -0,0 +1,22 @@
Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

2
sdk/traefik/vendor/golang.org/x/xerrors/README generated vendored Normal file
View File

@@ -0,0 +1,2 @@
This repository holds the transition packages for the new Go 1.13 error values.
See golang.org/design/29934-error-values.

193
sdk/traefik/vendor/golang.org/x/xerrors/adaptor.go generated vendored Normal file
View File

@@ -0,0 +1,193 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package xerrors
import (
"bytes"
"fmt"
"io"
"reflect"
"strconv"
)
// FormatError calls the FormatError method of f with an errors.Printer
// configured according to s and verb, and writes the result to s.
func FormatError(f Formatter, s fmt.State, verb rune) {
// Assuming this function is only called from the Format method, and given
// that FormatError takes precedence over Format, it cannot be called from
// any package that supports errors.Formatter. It is therefore safe to
// disregard that State may be a specific printer implementation and use one
// of our choice instead.
// limitations: does not support printing error as Go struct.
var (
sep = " " // separator before next error
p = &state{State: s}
direct = true
)
var err error = f
switch verb {
// Note that this switch must match the preference order
// for ordinary string printing (%#v before %+v, and so on).
case 'v':
if s.Flag('#') {
if stringer, ok := err.(fmt.GoStringer); ok {
io.WriteString(&p.buf, stringer.GoString())
goto exit
}
// proceed as if it were %v
} else if s.Flag('+') {
p.printDetail = true
sep = "\n - "
}
case 's':
case 'q', 'x', 'X':
// Use an intermediate buffer in the rare cases that precision,
// truncation, or one of the alternative verbs (q, x, and X) are
// specified.
direct = false
default:
p.buf.WriteString("%!")
p.buf.WriteRune(verb)
p.buf.WriteByte('(')
switch {
case err != nil:
p.buf.WriteString(reflect.TypeOf(f).String())
default:
p.buf.WriteString("<nil>")
}
p.buf.WriteByte(')')
io.Copy(s, &p.buf)
return
}
loop:
for {
switch v := err.(type) {
case Formatter:
err = v.FormatError((*printer)(p))
case fmt.Formatter:
v.Format(p, 'v')
break loop
default:
io.WriteString(&p.buf, v.Error())
break loop
}
if err == nil {
break
}
if p.needColon || !p.printDetail {
p.buf.WriteByte(':')
p.needColon = false
}
p.buf.WriteString(sep)
p.inDetail = false
p.needNewline = false
}
exit:
width, okW := s.Width()
prec, okP := s.Precision()
if !direct || (okW && width > 0) || okP {
// Construct format string from State s.
format := []byte{'%'}
if s.Flag('-') {
format = append(format, '-')
}
if s.Flag('+') {
format = append(format, '+')
}
if s.Flag(' ') {
format = append(format, ' ')
}
if okW {
format = strconv.AppendInt(format, int64(width), 10)
}
if okP {
format = append(format, '.')
format = strconv.AppendInt(format, int64(prec), 10)
}
format = append(format, string(verb)...)
fmt.Fprintf(s, string(format), p.buf.String())
} else {
io.Copy(s, &p.buf)
}
}
var detailSep = []byte("\n ")
// state tracks error printing state. It implements fmt.State.
type state struct {
fmt.State
buf bytes.Buffer
printDetail bool
inDetail bool
needColon bool
needNewline bool
}
func (s *state) Write(b []byte) (n int, err error) {
if s.printDetail {
if len(b) == 0 {
return 0, nil
}
if s.inDetail && s.needColon {
s.needNewline = true
if b[0] == '\n' {
b = b[1:]
}
}
k := 0
for i, c := range b {
if s.needNewline {
if s.inDetail && s.needColon {
s.buf.WriteByte(':')
s.needColon = false
}
s.buf.Write(detailSep)
s.needNewline = false
}
if c == '\n' {
s.buf.Write(b[k:i])
k = i + 1
s.needNewline = true
}
}
s.buf.Write(b[k:])
if !s.inDetail {
s.needColon = true
}
} else if !s.inDetail {
s.buf.Write(b)
}
return len(b), nil
}
// printer wraps a state to implement an xerrors.Printer.
type printer state
func (s *printer) Print(args ...interface{}) {
if !s.inDetail || s.printDetail {
fmt.Fprint((*state)(s), args...)
}
}
func (s *printer) Printf(format string, args ...interface{}) {
if !s.inDetail || s.printDetail {
fmt.Fprintf((*state)(s), format, args...)
}
}
func (s *printer) Detail() bool {
s.inDetail = true
return s.printDetail
}

1
sdk/traefik/vendor/golang.org/x/xerrors/codereview.cfg generated vendored Normal file
View File

@@ -0,0 +1 @@
issuerepo: golang/go

23
sdk/traefik/vendor/golang.org/x/xerrors/doc.go generated vendored Normal file
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@@ -0,0 +1,23 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package xerrors implements functions to manipulate errors.
//
// This package is based on the Go 2 proposal for error values:
//
// https://golang.org/design/29934-error-values
//
// These functions were incorporated into the standard library's errors package
// in Go 1.13:
// - Is
// - As
// - Unwrap
//
// Also, Errorf's %w verb was incorporated into fmt.Errorf.
//
// Use this package to get equivalent behavior in all supported Go versions.
//
// No other features of this package were included in Go 1.13, and at present
// there are no plans to include any of them.
package xerrors // import "golang.org/x/xerrors"

33
sdk/traefik/vendor/golang.org/x/xerrors/errors.go generated vendored Normal file
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@@ -0,0 +1,33 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package xerrors
import "fmt"
// errorString is a trivial implementation of error.
type errorString struct {
s string
frame Frame
}
// New returns an error that formats as the given text.
//
// The returned error contains a Frame set to the caller's location and
// implements Formatter to show this information when printed with details.
func New(text string) error {
return &errorString{text, Caller(1)}
}
func (e *errorString) Error() string {
return e.s
}
func (e *errorString) Format(s fmt.State, v rune) { FormatError(e, s, v) }
func (e *errorString) FormatError(p Printer) (next error) {
p.Print(e.s)
e.frame.Format(p)
return nil
}

190
sdk/traefik/vendor/golang.org/x/xerrors/fmt.go generated vendored Normal file
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@@ -0,0 +1,190 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package xerrors
import (
"fmt"
"strings"
"unicode"
"unicode/utf8"
"golang.org/x/xerrors/internal"
)
const percentBangString = "%!"
// Errorf formats according to a format specifier and returns the string as a
// value that satisfies error.
//
// The returned error includes the file and line number of the caller when
// formatted with additional detail enabled. If the last argument is an error
// the returned error's Format method will return it if the format string ends
// with ": %s", ": %v", or ": %w". If the last argument is an error and the
// format string ends with ": %w", the returned error implements an Unwrap
// method returning it.
//
// If the format specifier includes a %w verb with an error operand in a
// position other than at the end, the returned error will still implement an
// Unwrap method returning the operand, but the error's Format method will not
// return the wrapped error.
//
// It is invalid to include more than one %w verb or to supply it with an
// operand that does not implement the error interface. The %w verb is otherwise
// a synonym for %v.
//
// Note that as of Go 1.13, the fmt.Errorf function will do error formatting,
// but it will not capture a stack backtrace.
func Errorf(format string, a ...interface{}) error {
format = formatPlusW(format)
// Support a ": %[wsv]" suffix, which works well with xerrors.Formatter.
wrap := strings.HasSuffix(format, ": %w")
idx, format2, ok := parsePercentW(format)
percentWElsewhere := !wrap && idx >= 0
if !percentWElsewhere && (wrap || strings.HasSuffix(format, ": %s") || strings.HasSuffix(format, ": %v")) {
err := errorAt(a, len(a)-1)
if err == nil {
return &noWrapError{fmt.Sprintf(format, a...), nil, Caller(1)}
}
// TODO: this is not entirely correct. The error value could be
// printed elsewhere in format if it mixes numbered with unnumbered
// substitutions. With relatively small changes to doPrintf we can
// have it optionally ignore extra arguments and pass the argument
// list in its entirety.
msg := fmt.Sprintf(format[:len(format)-len(": %s")], a[:len(a)-1]...)
frame := Frame{}
if internal.EnableTrace {
frame = Caller(1)
}
if wrap {
return &wrapError{msg, err, frame}
}
return &noWrapError{msg, err, frame}
}
// Support %w anywhere.
// TODO: don't repeat the wrapped error's message when %w occurs in the middle.
msg := fmt.Sprintf(format2, a...)
if idx < 0 {
return &noWrapError{msg, nil, Caller(1)}
}
err := errorAt(a, idx)
if !ok || err == nil {
// Too many %ws or argument of %w is not an error. Approximate the Go
// 1.13 fmt.Errorf message.
return &noWrapError{fmt.Sprintf("%sw(%s)", percentBangString, msg), nil, Caller(1)}
}
frame := Frame{}
if internal.EnableTrace {
frame = Caller(1)
}
return &wrapError{msg, err, frame}
}
func errorAt(args []interface{}, i int) error {
if i < 0 || i >= len(args) {
return nil
}
err, ok := args[i].(error)
if !ok {
return nil
}
return err
}
// formatPlusW is used to avoid the vet check that will barf at %w.
func formatPlusW(s string) string {
return s
}
// Return the index of the only %w in format, or -1 if none.
// Also return a rewritten format string with %w replaced by %v, and
// false if there is more than one %w.
// TODO: handle "%[N]w".
func parsePercentW(format string) (idx int, newFormat string, ok bool) {
// Loosely copied from golang.org/x/tools/go/analysis/passes/printf/printf.go.
idx = -1
ok = true
n := 0
sz := 0
var isW bool
for i := 0; i < len(format); i += sz {
if format[i] != '%' {
sz = 1
continue
}
// "%%" is not a format directive.
if i+1 < len(format) && format[i+1] == '%' {
sz = 2
continue
}
sz, isW = parsePrintfVerb(format[i:])
if isW {
if idx >= 0 {
ok = false
} else {
idx = n
}
// "Replace" the last character, the 'w', with a 'v'.
p := i + sz - 1
format = format[:p] + "v" + format[p+1:]
}
n++
}
return idx, format, ok
}
// Parse the printf verb starting with a % at s[0].
// Return how many bytes it occupies and whether the verb is 'w'.
func parsePrintfVerb(s string) (int, bool) {
// Assume only that the directive is a sequence of non-letters followed by a single letter.
sz := 0
var r rune
for i := 1; i < len(s); i += sz {
r, sz = utf8.DecodeRuneInString(s[i:])
if unicode.IsLetter(r) {
return i + sz, r == 'w'
}
}
return len(s), false
}
type noWrapError struct {
msg string
err error
frame Frame
}
func (e *noWrapError) Error() string {
return fmt.Sprint(e)
}
func (e *noWrapError) Format(s fmt.State, v rune) { FormatError(e, s, v) }
func (e *noWrapError) FormatError(p Printer) (next error) {
p.Print(e.msg)
e.frame.Format(p)
return e.err
}
type wrapError struct {
msg string
err error
frame Frame
}
func (e *wrapError) Error() string {
return fmt.Sprint(e)
}
func (e *wrapError) Format(s fmt.State, v rune) { FormatError(e, s, v) }
func (e *wrapError) FormatError(p Printer) (next error) {
p.Print(e.msg)
e.frame.Format(p)
return e.err
}
func (e *wrapError) Unwrap() error {
return e.err
}

34
sdk/traefik/vendor/golang.org/x/xerrors/format.go generated vendored Normal file
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@@ -0,0 +1,34 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package xerrors
// A Formatter formats error messages.
type Formatter interface {
error
// FormatError prints the receiver's first error and returns the next error in
// the error chain, if any.
FormatError(p Printer) (next error)
}
// A Printer formats error messages.
//
// The most common implementation of Printer is the one provided by package fmt
// during Printf (as of Go 1.13). Localization packages such as golang.org/x/text/message
// typically provide their own implementations.
type Printer interface {
// Print appends args to the message output.
Print(args ...interface{})
// Printf writes a formatted string.
Printf(format string, args ...interface{})
// Detail reports whether error detail is requested.
// After the first call to Detail, all text written to the Printer
// is formatted as additional detail, or ignored when
// detail has not been requested.
// If Detail returns false, the caller can avoid printing the detail at all.
Detail() bool
}

56
sdk/traefik/vendor/golang.org/x/xerrors/frame.go generated vendored Normal file
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@@ -0,0 +1,56 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package xerrors
import (
"runtime"
)
// A Frame contains part of a call stack.
type Frame struct {
// Make room for three PCs: the one we were asked for, what it called,
// and possibly a PC for skipPleaseUseCallersFrames. See:
// https://go.googlesource.com/go/+/032678e0fb/src/runtime/extern.go#169
frames [3]uintptr
}
// Caller returns a Frame that describes a frame on the caller's stack.
// The argument skip is the number of frames to skip over.
// Caller(0) returns the frame for the caller of Caller.
func Caller(skip int) Frame {
var s Frame
runtime.Callers(skip+1, s.frames[:])
return s
}
// location reports the file, line, and function of a frame.
//
// The returned function may be "" even if file and line are not.
func (f Frame) location() (function, file string, line int) {
frames := runtime.CallersFrames(f.frames[:])
if _, ok := frames.Next(); !ok {
return "", "", 0
}
fr, ok := frames.Next()
if !ok {
return "", "", 0
}
return fr.Function, fr.File, fr.Line
}
// Format prints the stack as error detail.
// It should be called from an error's Format implementation
// after printing any other error detail.
func (f Frame) Format(p Printer) {
if p.Detail() {
function, file, line := f.location()
if function != "" {
p.Printf("%s\n ", function)
}
if file != "" {
p.Printf("%s:%d\n", file, line)
}
}
}

8
sdk/traefik/vendor/golang.org/x/xerrors/internal/internal.go generated vendored Normal file
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@@ -0,0 +1,8 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package internal
// EnableTrace indicates whether stack information should be recorded in errors.
var EnableTrace = true

112
sdk/traefik/vendor/golang.org/x/xerrors/wrap.go generated vendored Normal file
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@@ -0,0 +1,112 @@
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package xerrors
import (
"reflect"
)
// A Wrapper provides context around another error.
type Wrapper interface {
// Unwrap returns the next error in the error chain.
// If there is no next error, Unwrap returns nil.
Unwrap() error
}
// Opaque returns an error with the same error formatting as err
// but that does not match err and cannot be unwrapped.
func Opaque(err error) error {
return noWrapper{err}
}
type noWrapper struct {
error
}
func (e noWrapper) FormatError(p Printer) (next error) {
if f, ok := e.error.(Formatter); ok {
return f.FormatError(p)
}
p.Print(e.error)
return nil
}
// Unwrap returns the result of calling the Unwrap method on err, if err implements
// Unwrap. Otherwise, Unwrap returns nil.
//
// Deprecated: As of Go 1.13, use errors.Unwrap instead.
func Unwrap(err error) error {
u, ok := err.(Wrapper)
if !ok {
return nil
}
return u.Unwrap()
}
// Is reports whether any error in err's chain matches target.
//
// An error is considered to match a target if it is equal to that target or if
// it implements a method Is(error) bool such that Is(target) returns true.
//
// Deprecated: As of Go 1.13, use errors.Is instead.
func Is(err, target error) bool {
if target == nil {
return err == target
}
isComparable := reflect.TypeOf(target).Comparable()
for {
if isComparable && err == target {
return true
}
if x, ok := err.(interface{ Is(error) bool }); ok && x.Is(target) {
return true
}
// TODO: consider supporing target.Is(err). This would allow
// user-definable predicates, but also may allow for coping with sloppy
// APIs, thereby making it easier to get away with them.
if err = Unwrap(err); err == nil {
return false
}
}
}
// As finds the first error in err's chain that matches the type to which target
// points, and if so, sets the target to its value and returns true. An error
// matches a type if it is assignable to the target type, or if it has a method
// As(interface{}) bool such that As(target) returns true. As will panic if target
// is not a non-nil pointer to a type which implements error or is of interface type.
//
// The As method should set the target to its value and return true if err
// matches the type to which target points.
//
// Deprecated: As of Go 1.13, use errors.As instead.
func As(err error, target interface{}) bool {
if target == nil {
panic("errors: target cannot be nil")
}
val := reflect.ValueOf(target)
typ := val.Type()
if typ.Kind() != reflect.Ptr || val.IsNil() {
panic("errors: target must be a non-nil pointer")
}
if e := typ.Elem(); e.Kind() != reflect.Interface && !e.Implements(errorType) {
panic("errors: *target must be interface or implement error")
}
targetType := typ.Elem()
for err != nil {
if reflect.TypeOf(err).AssignableTo(targetType) {
val.Elem().Set(reflect.ValueOf(err))
return true
}
if x, ok := err.(interface{ As(interface{}) bool }); ok && x.As(target) {
return true
}
err = Unwrap(err)
}
return false
}
var errorType = reflect.TypeOf((*error)(nil)).Elem()

14
sdk/traefik/vendor/modules.txt vendored
View File

@@ -1,6 +1,10 @@
# github.com/xbingW/t1k v1.2.1 # github.com/chaitin/t1k-go v1.5.0
## explicit; go 1.17 ## explicit; go 1.17
github.com/xbingW/t1k github.com/chaitin/t1k-go
github.com/xbingW/t1k/pkg/datetime github.com/chaitin/t1k-go/detection
github.com/xbingW/t1k/pkg/rand github.com/chaitin/t1k-go/misc
github.com/xbingW/t1k/pkg/t1k github.com/chaitin/t1k-go/t1k
# golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028
## explicit; go 1.18
golang.org/x/xerrors
golang.org/x/xerrors/internal