LoadRunner实现Base64编解码方法

2013年06月27日 测试工具, 测试技术, 软件测试 ⁄ 共 3556字 ⁄ 字号 评论 1 条 ⁄ 阅读 2,851 次

本文主要介绍在LoadRunner中实现Base64编解码的方法。

LoadRunner脚本中包含头文件base64.h并使用其中的编解码函数即可实现对Base64编解码

LR测试代码如下:

 

 

 

 

 

#include "base64.h"

Action()
{
    int res;
    lr_save_string("你好,Lovesoo.org!","Test1");
    b64_encode_string( lr_eval_string("{Test1}"), "B64str" );// 编码
    lr_output_message("编码结果: \nNotify:\t%s", lr_eval_string("{B64str}") );

    b64_decode_string( lr_eval_string("{B64str}"), "Test2" );// 解码
    lr_output_message("解码结果: \nNotify:\t%s", lr_eval_string("{Test2}" ));

    res = strcmp( lr_eval_string("{Test1}"), lr_eval_string("{Test2}") );// 校验
    if (res == 0) lr_output_message("\nNotify:\t校验通过!");
    return 0;
}

头文件base64.h源码如下:

// Encoding lookup table
char base64encode_lut[] = {
'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q',
'R','S','T','U','V','W','X','Y','Z','a','b','c','d','e','f','g','h',
'i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y',
'z','0','1','2','3','4','5','6','7','8','9','+','/','='};

// Decode lookup table
char base64decode_lut[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0,62, 0, 0, 0,63,52,53,54,55,56,57,58,59,60,61, 0, 0,
0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,
15,16,17,18,19,20,21,22,23,24,25, 0, 0, 0, 0, 0, 0,26,27,28,
29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,
49,50,51, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, };

void base64encode(char *src, char *dest, int len)
// Encodes a buffer to base64
{
 int i=0, slen=strlen(src);
 for(i=0;i<slen && i<len;i+=3,src+=3)
 { // Enc next 4 characters
 *(dest++)=base64encode_lut[(*src&0xFC)>>0x2];
 *(dest++)=base64encode_lut[(*src&0x3)<<0x4|(*(src+1)&0xF0)>>0x4];
 *(dest++)=((i+1)<slen)?base64encode_lut[(*(src+1)&0xF)<<0x2|(*(src+2)&0xC0)>>0x6]:'=';
 *(dest++)=((i+2)<slen)?base64encode_lut[*(src+2)&0x3F]:'=';
 }
 *dest='/0'; // Append terminator
}

void base64decode(char *src, char *dest, int len)
// Encodes a buffer to base64
{
 int i=0, slen=strlen(src);
 for(i=0;i<slen&&i<len;i+=4,src+=4)
 { // Store next 4 chars in vars for faster access
 char c1=base64decode_lut[*src], c2=base64decode_lut[*(src+1)], c3=base64decode_lut[*(src+2)], c4=base64decode_lut[*(src+3)];
 // Decode to 3 chars
 *(dest++)=(c1&0x3F)<<0x2|(c2&0x30)>>0x4;
 *(dest++)=(c3!=64)?((c2&0xF)<<0x4|(c3&0x3C)>>0x2):'/0';
 *(dest++)=(c4!=64)?((c3&0x3)<<0x6|c4&0x3F):'/0';
 }
 *dest='/0'; // Append terminator
}

int b64_encode_string( char *source, char *lrvar )
// ----------------------------------------------------------------------------
// Encodes a string to base64 format
//
// Parameters:
//  source Pointer to source string to encode
//  lrvar LR variable where base64 encoded string is stored
//
// Example:
//
//  b64_encode_string( "Encode Me!", "b64" )
// ----------------------------------------------------------------------------
{
 int dest_size;
 int res;
 char *dest;
 // Allocate dest buffer
 dest_size = 1 + ((strlen(source)+2)/3*4);
 dest = (char *)malloc(dest_size);
 memset(dest,0,dest_size);
 // Encode & Save
 base64encode(source, dest, dest_size);
 lr_save_string( dest, lrvar );
 // Free dest buffer
 res = strlen(dest);
 free(dest);
 // Return length of dest string
 return res;
}

int b64_decode_string( char *source, char *lrvar )
// ----------------------------------------------------------------------------
// Decodes a base64 string to plaintext
//
// Parameters:
//  source Pointer to source base64 encoded string
//  lrvar LR variable where decoded string is stored
//
// Example:
//
//  b64_decode_string( lr_eval_string("{b64}"), "Plain" )
// ----------------------------------------------------------------------------
{
 int dest_size;
 int res;
 char *dest;
 // Allocate dest buffer
 dest_size = strlen(source);
 dest = (char *)malloc(dest_size);
 memset(dest,0,dest_size);
 // Encode & Save
 base64decode(source, dest, dest_size);
 lr_save_string( dest, lrvar );
 // Free dest buffer
 res = strlen(dest);
 free(dest);
 // Return length of dest string
 return res;
}
  1. 这个“#include “base64.h””是你导入的一个外部文件吗?放在哪个位置。我们网站用的encode64,是不是可以像你一样操作?将输入的数字,加 :?: 密后输出来?