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trace.go
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trace.go
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package trace
import (
"fmt"
"io"
"log"
"os"
"regexp"
. "github.com/cloudfoundry/cli/cf/i18n"
"github.com/cloudfoundry/gofileutils/fileutils"
)
type Printer interface {
Print(v ...interface{})
Printf(format string, v ...interface{})
Println(v ...interface{})
}
type nullLogger struct{}
func (*nullLogger) Print(v ...interface{}) {}
func (*nullLogger) Printf(format string, v ...interface{}) {}
func (*nullLogger) Println(v ...interface{}) {}
var stdOut io.Writer = os.Stdout
var Logger Printer
func init() {
Logger = NewLogger("")
}
func EnableTrace() {
Logger = newStdoutLogger()
}
func DisableTrace() {
Logger = new(nullLogger)
}
func SetStdout(s io.Writer) {
stdOut = s
}
func NewLogger(cf_trace string) Printer {
switch cf_trace {
case "", "false":
Logger = new(nullLogger)
case "true":
Logger = newStdoutLogger()
default:
Logger = newFileLogger(cf_trace)
}
return Logger
}
func newStdoutLogger() Printer {
return log.New(stdOut, "", 0)
}
func newFileLogger(path string) Printer {
file, err := fileutils.Open(path)
if err != nil {
logger := newStdoutLogger()
logger.Printf(T("CF_TRACE ERROR CREATING LOG FILE {{.Path}}:\n{{.Err}}",
map[string]interface{}{"Path": path, "Err": err}))
return logger
}
return log.New(file, "", 0)
}
func Sanitize(input string) (sanitized string) {
var sanitizeJson = func(propertyName string, json string) string {
regex := regexp.MustCompile(fmt.Sprintf(`"%s":\s*"[^\,]*"`, propertyName))
return regex.ReplaceAllString(json, fmt.Sprintf(`"%s":"%s"`, propertyName, PRIVATE_DATA_PLACEHOLDER()))
}
re := regexp.MustCompile(`(?m)^Authorization: .*`)
sanitized = re.ReplaceAllString(input, "Authorization: "+PRIVATE_DATA_PLACEHOLDER())
re = regexp.MustCompile(`password=[^&]*&`)
sanitized = re.ReplaceAllString(sanitized, "password="+PRIVATE_DATA_PLACEHOLDER()+"&")
sanitized = sanitizeJson("access_token", sanitized)
sanitized = sanitizeJson("refresh_token", sanitized)
sanitized = sanitizeJson("token", sanitized)
sanitized = sanitizeJson("password", sanitized)
sanitized = sanitizeJson("oldPassword", sanitized)
return
}
func PRIVATE_DATA_PLACEHOLDER() string {
return T("[PRIVATE DATA HIDDEN]")
}