bug fixes and improvements

include/fc/filesystem.hpp

@@ -1,5 +1,4 @@
-#ifndef _FC_FILESYSTEM_HPP_
-#define _FC_FILESYSTEM_HPP_
+#pragma once
 #include <fc/string.hpp>
 #include <fc/fwd.hpp>
 
@@ -72,4 +71,3 @@ namespace fc {
   path     temp_directory_path();
 }
 
-#endif // _FC_FILESYSTEM_HPP_

include/fc/http/connection.hpp

@@ -32,6 +32,7 @@ namespace fc {
   };
 
   struct request {
+     fc::string get_header( const fc::string& key )const;
      fc::string              method;
      fc::string              domain;
      fc::string              path;
@@ -39,6 +40,8 @@ namespace fc {
      fc::vector<char>        body;
   };
 
+  fc::vector<header> parse_urlencoded_params( const fc::string& f );
+
   /**
    *  Connections have reference semantics, all copies refer to the same
    *  underlying socket.  

src/http_connection.cpp

@@ -4,6 +4,8 @@
 #include <fc/iostream.hpp>
 #include <fc/exception.hpp>
 #include <fc/ip.hpp>
+#include <fc/error_report.hpp>
+#include <fc/hex.hpp>
 
 
 FC_START_SHARED_IMPL(fc::http::connection)
@@ -154,4 +156,42 @@ http::request    connection::read_request()const {
   return req;
 }
 
+fc::string request::get_header( const fc::string& key )const {
+  for( auto itr = headers.begin(); itr != headers.end(); ++itr ) {
+    if( itr->key == key ) { return itr->val; } 
+  }
+  return fc::string();
+}
+fc::vector<header> parse_urlencoded_params( const fc::string& f ) {
+  int num_args = 0;
+  for( size_t i = 0; i < f.size(); ++i ) {
+    if( f[i] == '=' ) ++num_args;
+  }
+  fc::vector<header> h(num_args);
+  int arg = 0;
+  for( size_t i = 0; i < f.size(); ++i ) {
+    while( f[i] != '=' && i < f.size() ) {
+      if( f[i] == '%' ) { 
+        h[arg].key += char((fc::from_hex(f[i+1]) << 4) | fc::from_hex(f[i+2]));
+        i += 3;
+      } else {
+          h[arg].key += f[i];
+          ++i;
+      }
+    }
+    ++i;
+    while( i < f.size() && f[i] != '&' ) {
+      if( f[i] == '%' ) { 
+        h[arg].val += char((fc::from_hex(f[i+1]) << 4) | fc::from_hex(f[i+2]));
+        i += 3;
+      } else {
+        h[arg].val += f[i] == '+' ? ' ' : f[i];
+        ++i;
+      }
+    }
+    ++arg;
+  }
+  return h;
+}
+
 } } // fc::http