helpers.cpp

   1 #include "helpers.h"
   2
   3
   4 /**
   5  *
   6  */
   7 string urlencode(string s)
   8 {
   9         int length = s.length();
  10         string out;
  11         char tmp[10];
  12
  13         for (int i=0; i<length; i++)
  14                 if ((s[i]>='a' && s[i]<='z')
  15                 || (s[i]>='A' && s[i]<='Z')
  16                 || (s[i]>='0' && s[i]<='9')
  17                 || s[i]=='-'
  18                 || s[i]=='_')
  19                         out += s[i];
  20                 else
  21                 {
  22                         sprintf(tmp, "%%%02x", (unsigned char)s[i]);
  23                         out += tmp;
  24                 }
  25
  26                 return out;
  27 }
  28
  29 string urldecode(string s)
  30 {
  31         string out;
  32
  33         int number = 0;
  34         int len = s.length();
  35         char tmp[2] = " ";
  36
  37         for (int i=0; i<len; i++)
  38         {
  39                 switch (s[i])
  40                 {
  41                         case '%':
  42                                 number = 0;
  43                                 for (int j=1; j<=2; j++)
  44                                 {
  45                                         number *= 16;
  46                                         if (s[i+j]>='A' && s[i+j]<='F')
  47                                                 number += 10 + s[i+j] - 'A';
  48                                         else if (s[i+j]>='a' && s[i+j]<='f')
  49                                                 number += 10 + s[i+j] - 'a';
  50                                         else
  51                                                 number += s[i+j] - '0';
  52                                 }
  53                                 tmp[0] = number;
  54                                 out += tmp;
  55                                 i+=2;
  56                         break;
  57
  58                         default:
  59                                 out += s[i];
  60                 }
  61         }
  62
  63         return out;
  64 }
  65