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Golang Expr Obfuscation Gval Example
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| package main | |
| import ( | |
| "fmt" | |
| "strings" | |
| "github.com/PaesslerAG/gval" | |
| ) | |
| var ( | |
| dic = strings.NewReplacer( | |
| "Zero","0", | |
| "One","1", | |
| "Two","2", | |
| "Three","3", | |
| "Four","4", | |
| "Five","5", | |
| "Six","6", | |
| "Seven","7", | |
| "Eight","8", | |
| "Nine","9", | |
| ) | |
| ) | |
| func convert(m string) (string) { | |
| return dic.Replace(m); | |
| } | |
| func calc(m string) (int){ | |
| // ref: https://godoc.org/github.com/PaesslerAG/gval#example-Evaluate--Arithmetic | |
| value, err := gval.Evaluate(m, map[string]interface{}{}) | |
| if err != nil { | |
| panic(err) | |
| } | |
| return int(value.(float64)) | |
| } | |
| func main(){ | |
| // Numbers in format string | |
| magic := "(Eight5TwoThree^Three5Zero)+"; | |
| magic += "(FourEightEightSeven^SevenFiveNine)+"; | |
| magic += "(Eight5TwoThree^Three5Zero)+"; | |
| magic += "(FourEightEightSeven^SevenFiveNine)"; | |
| fmt.Printf("Original: %s\n",magic); | |
| magic = convert(magic); | |
| fmt.Printf("Replacd: %s\n",magic); | |
| magic_number := calc(magic); | |
| fmt.Print("Result: ", magic_number, "\n"); | |
| } |
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