source/http/header.cpp

   1 #include <stdexcept>
   2 #include <msp/strings/utils.h>
   3 #include "header.h"
   4 #include "message.h"
   5
   6 using namespace std;
   7
   8 namespace Msp {
   9 namespace Http {
  10
  11 Header::Header(const Message &msg, const string &n):
  12         name(n),
  13         raw_value(msg.get_header(name))
  14 {
  15         parse();
  16 }
  17
  18 Header::Header(const string &n, const string &rv):
  19         name(n),
  20         raw_value(rv)
  21 {
  22         parse();
  23 }
  24
  25 void Header::parse()
  26 {
  27         string::const_iterator i = raw_value.begin();
  28         while(i!=raw_value.end())
  29         {
  30                 Value value;
  31
  32                 string::const_iterator start = i;
  33                 for(; (i!=raw_value.end() && *i!=';' && *i!=','); ++i) ;
  34                 value.value = strip(string(start, i));
  35                 if(value.value.empty())
  36                         throw invalid_argument("Header::parse");
  37
  38                 while(i!=raw_value.end() && *i!=',')
  39                 {
  40                         start = ++i;
  41                         for(; (i!=raw_value.end() && *i!=';' && *i!=',' && *i!='='); ++i) ;
  42                         string pname = strip(string(start, i));
  43                         if(pname.empty())
  44                                 throw invalid_argument("Header::parse");
  45
  46                         string pvalue;
  47                         if(i!=raw_value.end() && *i=='=')
  48                         {
  49                                 for(++i; (i!=raw_value.end() && isspace(*i)); ++i) ;
  50                                 if(i==raw_value.end() || *i==';' || *i==',')
  51                                         throw invalid_argument("Header::parse");
  52
  53                                 if(*i=='"')
  54                                 {
  55                                         start = ++i;
  56                                         for(; (i!=raw_value.end() && *i!='"'); ++i) ;
  57                                         if(i==raw_value.end())
  58                                                 throw invalid_argument("Header::parse");
  59
  60                                         pvalue = string(start, i);
  61
  62                                         for(++i; (i!=raw_value.end() && *i!=';' && *i!=','); ++i)
  63                                                 if(!isspace(*i))
  64                                                         throw invalid_argument("Header::parse");
  65                                 }
  66                                 else
  67                                 {
  68                                         start = i;
  69                                         for(; (i!=raw_value.end() && *i!=';' && *i!=','); ++i) ;
  70                                         pvalue = strip(string(start, i));
  71                                 }
  72                         }
  73
  74                         value.parameters[pname] = pvalue;
  75                 }
  76
  77                 values.push_back(value);
  78         }
  79 }
  80
  81 } // namespace Http
  82 } // namespace Msp