236 lines
3.3 KiB
C++
Executable File
236 lines
3.3 KiB
C++
Executable File
/*
|
|
* This file is a part of Winix
|
|
* and is not publicly distributed
|
|
*
|
|
* Copyright (c) 2008-2010, Tomasz Sowa
|
|
* All rights reserved.
|
|
*
|
|
*/
|
|
|
|
#include "httpsimpleparser.h"
|
|
|
|
|
|
void HttpSimpleParser::ToLower(std::string & s)
|
|
{
|
|
std::string::iterator i;
|
|
|
|
for(i=s.begin() ; i!= s.end() ; ++i)
|
|
{
|
|
if( *i>='A' && *i<='Z' )
|
|
*i = *i - 'A' + 'a';
|
|
}
|
|
}
|
|
|
|
|
|
bool HttpSimpleParser::IsWhite(int c)
|
|
{
|
|
if( c==' ' || c=='\t' )
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
void HttpSimpleParser::SkipWhiteChars()
|
|
{
|
|
while( IsWhite(last_c) )
|
|
last_c = GetChar();
|
|
}
|
|
|
|
|
|
|
|
void HttpSimpleParser::TrimWhiteChars(std::string & s)
|
|
{
|
|
if( s.empty() )
|
|
return;
|
|
|
|
std::string::size_type i;
|
|
|
|
for(i = 0 ; i<s.size() && IsWhite(s[i]) ; ++i);
|
|
|
|
if( i == s.size() )
|
|
{
|
|
// all characters are white
|
|
s.clear();
|
|
return;
|
|
}
|
|
|
|
if( i > 0 )
|
|
// there are some white characters at the beginning
|
|
s.erase(0, i);
|
|
|
|
|
|
// s is not empty now (i was not equal s.size())
|
|
// and we have some non white characters
|
|
// we stops at the last non white character
|
|
for(i = s.size()-1 ; i>0 && IsWhite(s[i]) ; --i);
|
|
|
|
if( i != s.size()-1 )
|
|
// there are some white characters at the end
|
|
// we're starting from i+1 even when i==0 (there are some non white characters)
|
|
s.erase(i+1, s.size() - i - 1);
|
|
}
|
|
|
|
|
|
|
|
int HttpSimpleParser::ParseHalfHex(int c)
|
|
{
|
|
if( c>='a' && c<='z' )
|
|
c += 'A' - 'a'; // to upper case
|
|
|
|
|
|
if( c >= 'A' )
|
|
c = c - 'A' + 10;
|
|
else
|
|
c = c - '0';
|
|
|
|
c &= 0xf;
|
|
|
|
|
|
return c;
|
|
}
|
|
|
|
|
|
|
|
|
|
void HttpSimpleParser::CheckSpecialChar()
|
|
{
|
|
if( last_c == '%' )
|
|
{
|
|
int c1 = GetChar();
|
|
int c2 = GetChar();
|
|
|
|
if( c1==-1 || c2==-1 )
|
|
{
|
|
last_c = -1;
|
|
}
|
|
else
|
|
{
|
|
c1 = ParseHalfHex(c1);
|
|
c2 = ParseHalfHex(c2);
|
|
|
|
last_c = (c1 << 4) + c2;
|
|
}
|
|
}
|
|
else
|
|
if( last_c == '+' )
|
|
{
|
|
last_c = ' ';
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
void HttpSimpleParser::ReadName()
|
|
{
|
|
// we're checking 'separator' and '=' because the string is allowed not having '=' (the value is optional)
|
|
|
|
for( ; last_c!=-1 && last_c!=separator && last_c!='=' ; last_c = GetChar() )
|
|
{
|
|
if( recognize_special_chars )
|
|
CheckSpecialChar();
|
|
|
|
if( last_c != -1 )
|
|
last_name += last_c;
|
|
}
|
|
|
|
|
|
if( last_c == '=' )
|
|
last_c = GetChar();
|
|
}
|
|
|
|
|
|
void HttpSimpleParser::ReadQuotedValue()
|
|
{
|
|
// skipping '"'
|
|
last_c = GetChar();
|
|
|
|
|
|
for( ; last_c!=-1 && last_c!='"' ; last_c = GetChar() )
|
|
{
|
|
if( recognize_special_chars )
|
|
CheckSpecialChar();
|
|
|
|
if( last_c != -1 )
|
|
last_value += last_c;
|
|
}
|
|
|
|
|
|
if( last_c == '"' )
|
|
last_c = GetChar();
|
|
|
|
// looking for a separator (skipping)
|
|
for( ; last_c!=-1 && last_c!=separator ; last_c = GetChar() );
|
|
|
|
}
|
|
|
|
|
|
void HttpSimpleParser::ReadValue()
|
|
{
|
|
if( skip_white_chars )
|
|
SkipWhiteChars();
|
|
|
|
if( value_can_be_quoted && last_c == '"' )
|
|
{
|
|
ReadQuotedValue();
|
|
}
|
|
else
|
|
{
|
|
for( ; last_c!=-1 && last_c!=separator ; last_c = GetChar() )
|
|
{
|
|
if( recognize_special_chars )
|
|
CheckSpecialChar();
|
|
|
|
if( last_c != -1 )
|
|
last_value += last_c;
|
|
}
|
|
}
|
|
|
|
|
|
if( last_c == separator )
|
|
last_c = GetChar();
|
|
}
|
|
|
|
|
|
|
|
|
|
void HttpSimpleParser::Parse()
|
|
{
|
|
for( last_c = GetChar() ; last_c != -1 ; )
|
|
{
|
|
last_name.clear();
|
|
last_value.clear();
|
|
|
|
if( read_name )
|
|
ReadName();
|
|
|
|
ReadValue();
|
|
|
|
if( skip_white_chars )
|
|
{
|
|
TrimWhiteChars(last_name);
|
|
TrimWhiteChars(last_value);
|
|
}
|
|
|
|
Parameter(last_name, last_value); // user definied function
|
|
}
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|