source/utils.cpp

   1 /* $Id$
   2
   3 This file is part of libmsphttp
   4 Copyright © 2009  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include <msp/strings/formatter.h>
   9 #include "utils.h"
  10
  11 using namespace std;
  12
  13 namespace {
  14
  15 const char reserved[]=" :/?#[]@!$&'()*+,;=%";
  16
  17 bool is_reserved(char c)
  18 {
  19         for(const char *r=reserved; *r; ++r)
  20                 if(c==*r)
  21                         return true;
  22         return false;
  23 }
  24
  25 }
  26
  27 namespace Msp {
  28 namespace Http {
  29
  30 string urlencode(const string &str)
  31 {
  32         string result;
  33         for(string::const_iterator i=str.begin(); i!=str.end(); ++i)
  34         {
  35                 if(is_reserved(*i))
  36                         result+=format("%%%02X", *i);
  37                 else
  38                         result+=*i;
  39         }
  40         return result;
  41 }
  42
  43 string urldecode(const string &str)
  44 {
  45         string result;
  46         for(unsigned i=0; i<str.size(); ++i)
  47         {
  48                 char c=str[i];
  49                 if(c=='%')
  50                 {
  51                         if(i+3>str.size())
  52                                 throw InvalidParameterValue("Malformed data");
  53                         result+=lexical_cast<unsigned char>(str.substr(i+1, 2), "x");
  54                         i+=2;
  55                 }
  56                 else if(c=='+')
  57                         result+=' ';
  58                 else
  59                         result+=c;
  60         }
  61         return result;
  62 }
  63
  64 } // namespace Http
  65 } // namespace Msp