logs.go

package logs

import (
	"bytes"
	"encoding/json"
	"fmt"
	"github.com/MindscapeHQ/raygun4go"
	log "github.com/sirupsen/logrus"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/date_utils"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/errors"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/string_utils"
	"gitlab.bob.co.za/bob-public-utils/bobgroup-go-utils/utils"
	"io"
	"net/http"
	"net/url"
	"os"
	"reflect"
	"regexp"
	"runtime"
	"strings"

	"github.com/aws/aws-lambda-go/events"
)

const (
	FatalLevel = log.FatalLevel
	ErrorLevel = log.ErrorLevel
	WarnLevel  = log.WarnLevel
	InfoLevel  = log.InfoLevel
	DebugLevel = log.DebugLevel
)

type LogEntryWithLevel struct {
	// LogBuffer *bytes.Buffer
	LogEntry *log.Entry
	Message  interface{}
	LogLevel log.Level
}

var logger *log.Entry
var cachedLogEntries []LogEntryWithLevel

var apiRequest *events.APIGatewayProxyRequest
var currentRequestID *string
var isDebug = false
var storeLogsUntilTriggered = false
var disableLogging = false
var build string
var raygunClient *raygun4go.Client

// Password filtering
var passwordRegex = regexp.MustCompile(`(?i:\\?"password\\?"\s*:\s*\\?"(.*)\\?").*`)
var byteArrayRegex = regexp.MustCompile(`(?i:\\?"(?i:[\w]*)(?i:byte|data)(?i:[\w]*)\\?"\s*:\s*\[([\d\s,]+)*\])`)

func SanitiseLogs(logString string) string {
	var isValidJsonString bool
	isValidJsonString, logString = string_utils.PrettyJSON(logString)
	if !isValidJsonString {
		return logString
	}

	logString = MaskByteArraysInJsonString(logString)
	logString = MaskPasswordsInJsonString(logString)

	return logString
}

// MaskPasswordsInJsonString takes a string and sanitises all the instances of fields named password.
// E.g. "{"password": "xyz123"}" will become "{"password": "***"}"
func MaskPasswordsInJsonString(jsonString string) string {