You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
343 lines
9.2 KiB
343 lines
9.2 KiB
// Copyright 2019 HAProxy Technologies
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
|
|
package misc
|
|
|
|
import (
|
|
"crypto/rand"
|
|
"encoding/base64"
|
|
"encoding/json"
|
|
"errors"
|
|
"fmt"
|
|
"net"
|
|
"net/http"
|
|
"os"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/GehirnInc/crypt"
|
|
"github.com/haproxytech/client-native/v6/configuration"
|
|
client_errors "github.com/haproxytech/client-native/v6/errors"
|
|
"github.com/haproxytech/client-native/v6/models"
|
|
"github.com/haproxytech/config-parser/v5/types"
|
|
jsoniter "github.com/json-iterator/go"
|
|
|
|
"github.com/haproxytech/dataplaneapi/haproxy"
|
|
"github.com/haproxytech/dataplaneapi/log"
|
|
"github.com/haproxytech/dataplaneapi/rate"
|
|
)
|
|
|
|
const (
|
|
// ErrHTTPNotFound HTTP status code 404
|
|
ErrHTTPNotFound = int64(404)
|
|
// ErrHTTPConflict HTTP status code 409
|
|
ErrHTTPConflict = int64(409)
|
|
// ErrHTTPInternalServerError HTTP status code 500
|
|
ErrHTTPInternalServerError = int64(500)
|
|
// ErrHTTPBadRequest HTTP status code 400
|
|
ErrHTTPBadRequest = int64(400)
|
|
// ErrHTTPRateLimit HTTP status code 429
|
|
ErrHTTPRateLimit = int64(429)
|
|
// ErrHTTPOk HTTP status code 200
|
|
ErrHTTPOk = int64(200)
|
|
)
|
|
|
|
func OutdatedTransactionError(id string) *models.Error {
|
|
var code int64 = 406
|
|
msg := fmt.Sprintf("transaction %s is outdated and cannot be committed", id)
|
|
return &models.Error{
|
|
Code: &code,
|
|
Message: &msg,
|
|
}
|
|
}
|
|
|
|
func FailedTransactionError(id string) *models.Error {
|
|
var code int64 = 406
|
|
msg := fmt.Sprintf("transaction %s is failed and cannot be committed", id)
|
|
return &models.Error{
|
|
Code: &code,
|
|
Message: &msg,
|
|
}
|
|
}
|
|
|
|
// HandleError translates error codes from client native into models.Error with appropriate http status code
|
|
func HandleError(err error) *models.Error {
|
|
switch t := err.(type) {
|
|
case *configuration.ConfError:
|
|
msg := t.Error()
|
|
httpCode := ErrHTTPInternalServerError
|
|
switch t.Err() {
|
|
case configuration.ErrObjectDoesNotExist:
|
|
httpCode = ErrHTTPNotFound
|
|
case configuration.ErrObjectAlreadyExists, configuration.ErrVersionMismatch, configuration.ErrTransactionAlreadyExists:
|
|
httpCode = ErrHTTPConflict
|
|
case configuration.ErrObjectIndexOutOfRange, configuration.ErrValidationError, configuration.ErrBothVersionTransaction,
|
|
configuration.ErrNoVersionTransaction, configuration.ErrNoParentSpecified, configuration.ErrParentDoesNotExist,
|
|
configuration.ErrTransactionDoesNotExist, configuration.ErrGeneralError:
|
|
httpCode = ErrHTTPBadRequest
|
|
}
|
|
return &models.Error{Code: &httpCode, Message: &msg}
|
|
case *haproxy.ReloadError:
|
|
httpCode := ErrHTTPBadRequest
|
|
msg := t.Error()
|
|
return &models.Error{Code: &httpCode, Message: &msg}
|
|
case *rate.TransactionLimitReachedError:
|
|
httpCode := ErrHTTPRateLimit
|
|
msg := t.Error()
|
|
return &models.Error{Code: &httpCode, Message: &msg}
|
|
default:
|
|
msg := t.Error()
|
|
code := ErrHTTPInternalServerError
|
|
return &models.Error{Code: &code, Message: &msg}
|
|
}
|
|
}
|
|
|
|
// HandleContainerGetError translates error codes from client native into models.Error with appropriate http status code. Intended for get requests on container endpoints.
|
|
func HandleContainerGetError(err error) *models.Error {
|
|
if t, ok := err.(*configuration.ConfError); ok {
|
|
if t.Is(configuration.ErrParentDoesNotExist) {
|
|
code := ErrHTTPOk
|
|
return &models.Error{Code: &code}
|
|
}
|
|
}
|
|
return HandleError(err)
|
|
}
|
|
|
|
// DiscoverChildPaths return children models.Endpoints given path
|
|
func DiscoverChildPaths(path string, spec json.RawMessage) (models.Endpoints, error) {
|
|
var m map[string]interface{}
|
|
json := jsoniter.ConfigCompatibleWithStandardLibrary
|
|
err := json.Unmarshal(spec, &m)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
es := make(models.Endpoints, 0, 1)
|
|
paths := m["paths"].(map[string]interface{})
|
|
for key, value := range paths {
|
|
v := value.(map[string]interface{})
|
|
if g, ok := v["get"].(map[string]interface{}); ok {
|
|
title := ""
|
|
if titleInterface, ok := g["summary"]; ok && titleInterface != nil {
|
|
title = titleInterface.(string)
|
|
}
|
|
description := ""
|
|
if descInterface, ok := g["description"]; ok && descInterface != nil {
|
|
description = descInterface.(string)
|
|
}
|
|
|
|
if strings.HasPrefix(key, path) && key != path {
|
|
resource := key[len(path):]
|
|
if strings.HasPrefix(resource, "/") && len(strings.Split(resource[1:], "/")) == 1 {
|
|
e := models.Endpoint{
|
|
URL: key,
|
|
Title: title,
|
|
Description: description,
|
|
}
|
|
es = append(es, &e)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return es, nil
|
|
}
|
|
|
|
func IsUnixSocketAddr(addr string) bool {
|
|
if strings.HasPrefix(addr, "ipv4@") || strings.HasPrefix(addr, "ipv6@") {
|
|
return false
|
|
}
|
|
|
|
// check if it has semicolon
|
|
if strings.Contains(addr, ":") {
|
|
return false
|
|
}
|
|
return true
|
|
}
|
|
|
|
func ParseTimeout(tOut string) *int64 {
|
|
var v int64
|
|
switch {
|
|
case strings.HasSuffix(tOut, "ms"):
|
|
v, _ = strconv.ParseInt(strings.TrimSuffix(tOut, "ms"), 10, 64)
|
|
case strings.HasSuffix(tOut, "s"):
|
|
v, _ = strconv.ParseInt(strings.TrimSuffix(tOut, "s"), 10, 64)
|
|
v *= 1000
|
|
case strings.HasSuffix(tOut, "m"):
|
|
v, _ = strconv.ParseInt(strings.TrimSuffix(tOut, "m"), 10, 64)
|
|
v = v * 1000 * 60
|
|
case strings.HasSuffix(tOut, "h"):
|
|
v, _ = strconv.ParseInt(strings.TrimSuffix(tOut, "h"), 10, 64)
|
|
v = v * 1000 * 60 * 60
|
|
case strings.HasSuffix(tOut, "d"):
|
|
v, _ = strconv.ParseInt(strings.TrimSuffix(tOut, "d"), 10, 64)
|
|
v = v * 1000 * 60 * 60 * 24
|
|
default:
|
|
v, _ = strconv.ParseInt(tOut, 10, 64)
|
|
}
|
|
if v != 0 {
|
|
return &v
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func GetHTTPStatusFromConfErr(err *configuration.ConfError) int {
|
|
switch err.Err() {
|
|
case configuration.ErrObjectDoesNotExist:
|
|
return http.StatusNotFound
|
|
case configuration.ErrObjectAlreadyExists:
|
|
return http.StatusConflict
|
|
case configuration.ErrNoParentSpecified:
|
|
return http.StatusBadRequest
|
|
default:
|
|
return http.StatusInternalServerError
|
|
}
|
|
}
|
|
|
|
func GetHTTPStatusFromErr(err error) int {
|
|
confError := &configuration.ConfError{}
|
|
|
|
switch {
|
|
case errors.As(err, &confError):
|
|
return GetHTTPStatusFromConfErr(confError)
|
|
case errors.Is(err, client_errors.ErrAlreadyExists):
|
|
return http.StatusConflict
|
|
case errors.Is(err, client_errors.ErrNotFound):
|
|
return http.StatusNotFound
|
|
case errors.Is(err, client_errors.ErrGeneral):
|
|
return http.StatusBadRequest
|
|
default:
|
|
return http.StatusInternalServerError
|
|
}
|
|
}
|
|
|
|
func SetError(code int, msg string) *models.Error {
|
|
return &models.Error{
|
|
Code: Int64P(code),
|
|
Message: StringP(msg),
|
|
}
|
|
}
|
|
|
|
func StringP(s string) *string {
|
|
return &s
|
|
}
|
|
|
|
func Int64P(i int) *int64 {
|
|
i64 := int64(i)
|
|
return &i64
|
|
}
|
|
|
|
// extractEnvVar extracts and returns env variable from HAProxy variable
|
|
// provided in "${SOME_VAR}" format
|
|
func ExtractEnvVar(pass string) string {
|
|
return strings.TrimLeft(strings.TrimRight(pass, "\"}"), "\"${")
|
|
}
|
|
|
|
func HasOSArg(short, long, env string) bool {
|
|
if short == "" && long == "" && env == "" {
|
|
return false
|
|
}
|
|
target1 := "--" + long
|
|
hasShort := short != ""
|
|
target2 := "-" + short
|
|
|
|
if env != "" {
|
|
if os.Getenv(env) != "" {
|
|
return true
|
|
}
|
|
}
|
|
for _, arg := range os.Args {
|
|
if hasShort && arg == target2 {
|
|
return true
|
|
}
|
|
if arg == target1 {
|
|
return true
|
|
}
|
|
if strings.HasPrefix(arg, target1) {
|
|
p := strings.Split(arg, "=")
|
|
if len(p) > 1 {
|
|
return true
|
|
}
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func RandomString(size int) (string, error) {
|
|
str, err := randomString(size)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
for len(str) < size {
|
|
str2, _ := randomString(size)
|
|
str += str2
|
|
}
|
|
return str[:size], nil
|
|
}
|
|
|
|
// randomString generates a random string of the recommended size.
|
|
// Result is not guaranteed to be correct length.
|
|
func randomString(recommendedSize int) (string, error) {
|
|
b := make([]byte, recommendedSize+8)
|
|
_, err := rand.Read(b)
|
|
result := strings.ReplaceAll(base64.URLEncoding.EncodeToString(b), `=`, ``)
|
|
result = strings.ReplaceAll(result, `-`, ``)
|
|
result = strings.ReplaceAll(result, `_`, ``)
|
|
return result, err
|
|
}
|
|
|
|
func IsNetworkErr(err error) bool {
|
|
if err == nil {
|
|
return false
|
|
}
|
|
if _, ok := err.(net.Error); ok {
|
|
return true
|
|
}
|
|
return false
|
|
}
|
|
|
|
func CreateClusterUser() (types.User, string, error) {
|
|
// create a new user for connecting to cluster
|
|
name, err := RandomString(8)
|
|
if err != nil {
|
|
return types.User{}, "", err
|
|
}
|
|
pwd, err := RandomString(24)
|
|
if err != nil {
|
|
return types.User{}, "", err
|
|
}
|
|
|
|
cryptAlg := crypt.New(crypt.SHA512)
|
|
hash, err := cryptAlg.Generate([]byte(pwd), nil)
|
|
if err != nil {
|
|
return types.User{}, "", err
|
|
}
|
|
name = fmt.Sprintf("dpapi-c-%s", name)
|
|
log.Infof("Creating user %s for cluster connection", name)
|
|
user := types.User{
|
|
Name: name,
|
|
IsInsecure: false,
|
|
Password: hash,
|
|
}
|
|
return user, pwd, nil
|
|
}
|
|
|
|
// ConvertStruct tries to convert a struct from one type to another.
|
|
func ConvertStruct[T1 any, T2 any](from T1, to T2) error {
|
|
json := jsoniter.ConfigCompatibleWithStandardLibrary
|
|
js, err := json.Marshal(from)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
return json.Unmarshal(js, to)
|
|
}
|
|
|