golang_encodeURIComponent.go

// #Warning! You Should Use this Code Carefully, and As Your Own Risk.
package main

import (
	"fmt"
	"net/url"
	"strings"
)
/*
After hours searching, I can't find any method can get the result exact as the JS encodeURIComponent function.
In my situation I need to write a sign method which need encode the user input exact same as the JS encodeURIComponent.
This function does solved my problem.
*/
func main() {
	params := url.Values{
		"test_string": {"+!+'( )*-._~0-👿  👿9a-zA-Z 中文测试 test with ❤️ !@#$%^&&*()~<>?/.,;'[][]:{{}|{}|"},
	}
	urlEncode := params.Encode()
	fmt.Println(urlEncode)
	urlEncode = compatibleRFC3986Encode(urlEncode)
	fmt.Println("RFC3986", urlEncode)
	urlEncode = compatibleJSEncodeURIComponent(urlEncode)
	fmt.Println("JS encodeURIComponent", urlEncode)
}

// Compatible with RFC 3986.
func compatibleRFC3986Encode(str string) string {
	resultStr := str
	resultStr = strings.Replace(resultStr, "+", "%20", -1)
	return resultStr
}

// This func mimic JS encodeURIComponent, JS is wild and not very strict.
func compatibleJSEncodeURIComponent(str string) string {
	resultStr := str
	resultStr = strings.Replace(resultStr, "+", "%20", -1)
	resultStr = strings.Replace(resultStr, "%21", "!", -1)
	resultStr = strings.Replace(resultStr, "%27", "'", -1)
	resultStr = strings.Replace(resultStr, "%28", "(", -1)
	resultStr = strings.Replace(resultStr, "%29", ")", -1)
	resultStr = strings.Replace(resultStr, "%2A", "*", -1)
	return resultStr
}