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#include "precomp_wasabi_bfc.h"
#include "url.h"
#include <bfc/wasabi_std.h>
void Url::encode(StringW &dest, int use_plus_for_space, int encoding, int style)
{
if (dest.isempty()) return;
StringW srcstr = dest;
const wchar_t *src = srcstr;
dest = NULL;
/*
if (encoding & URLENCODE_EXCLUDEHTTPPREFIX)
if (!_wcsnicmp(src, L"http://", 7))
{
src += 7;
dest += L"http://";
}
*/
while (src && *src)
{
int encode = 1;
// if (encoding & URLENCODE_NOTHING) encode = 0;
if ((encoding & URLENCODE_EXCLUDEALPHANUM)
&& (ISALPHA(*src) || ISDIGIT(*src)
|| *src == '_' || *src == '-' || *src == '.' || *src == '~')
&& *src < 128)
encode = 0;
// if ((encoding & URLENCODE_EXCLUDE_8BIT) && (*src > 127)) encode = 0;
if ((encoding & URLENCODE_EXCLUDE_ABOVEEQ32) && (*src >= 32)) encode = 0;
// if ((encoding & URLENCODE_ENCODESPACE) && *src == ' ') encode = 1;
// if ((encoding & URLENCODE_ENCODEXML) && (*src == '<' || *src == '>' || *src == '&')) encode = 1;
if ((*src == '&' && (style == URLENCODE_STYLE_ANDPOUND || style == URLENCODE_STYLE_ANDPOUNDX)) ||
(*src == '%' && style == URLENCODE_STYLE_PERCENT)) encode = 1;
if ((encoding & URLENCODE_EXCLUDESLASH) && (*src == '/' || *src == ':')) encode = 0;
if (!encode)
{
dest += *src;
}
else if (use_plus_for_space && *src == ' ')
{
dest += '+';
}
else
{
switch (style)
{
case URLENCODE_STYLE_PERCENT:
dest += StringPrintfW(L"%%%02X", (int) * src);
break;
case URLENCODE_STYLE_ANDPOUND:
dest += StringPrintfW(L"&#%02d;", (int) * src);
break;
case URLENCODE_STYLE_ANDPOUNDX:
dest += StringPrintfW(L"&#x%02X;", (int) * src);
break;
}
}
src++;
}
}
void Url::encode(String &dest, int use_plus_for_space, int encoding, int style)
{
if (dest.isempty()) return;
String srcstr = dest;
const char *src = srcstr;
dest = NULL;
/*
if (encoding & URLENCODE_EXCLUDEHTTPPREFIX)
if (!_wcsnicmp(src, L"http://", 7))
{
src += 7;
dest += L"http://";
}
*/
while (src && *src)
{
int encode = 1;
// if (encoding & URLENCODE_NOTHING) encode = 0;
if ((encoding & URLENCODE_EXCLUDEALPHANUM)
&& (ISALPHA(*src) || ISDIGIT(*src)
|| *src == '_' || *src == '-' || *src == '.' || *src == '~')
&& *(unsigned char *)src < 128)
encode = 0;
// if ((encoding & URLENCODE_EXCLUDE_8BIT) && (*src > 127)) encode = 0;
if ((encoding & URLENCODE_EXCLUDE_ABOVEEQ32) && (*src >= 32)) encode = 0;
// if ((encoding & URLENCODE_ENCODESPACE) && *src == ' ') encode = 1;
// if ((encoding & URLENCODE_ENCODEXML) && (*src == '<' || *src == '>' || *src == '&')) encode = 1;
if ((*src == '&' && (style == URLENCODE_STYLE_ANDPOUND || style == URLENCODE_STYLE_ANDPOUNDX)) ||
(*src == '%' && style == URLENCODE_STYLE_PERCENT)) encode = 1;
if ((encoding & URLENCODE_EXCLUDESLASH) && (*src == '/' || *src == ':')) encode = 0;
if (!encode)
{
dest += *src;
}
else if (use_plus_for_space && *src == ' ')
{
dest += '+';
}
else
{
switch (style)
{
case URLENCODE_STYLE_PERCENT:
dest += StringPrintf("%%%02X", (unsigned char)*src);
break;
case URLENCODE_STYLE_ANDPOUND:
dest += StringPrintf("&#%02d;", (unsigned char)*src);
break;
case URLENCODE_STYLE_ANDPOUNDX:
dest += StringPrintf("&#x%02X;", (unsigned char)*src);
break;
}
}
src++;
}
}
void Url::decode(StringW &str, int use_plus_for_space)
{
if (str.isempty()) return;
Url::decode(str.getNonConstVal());
}
static uint8_t quickhex(wchar_t c)
{
int hexvalue = c;
if (hexvalue & 0x10)
hexvalue &= ~0x30;
else
{
hexvalue &= 0xF;
hexvalue += 9;
}
return hexvalue;
}
static uint8_t DecodeEscape(const wchar_t *&str)
{
uint8_t a = quickhex(*++str);
uint8_t b = quickhex(*++str);
str++;
return a * 16 + b;
}
static void DecodeEscapedUTF8(wchar_t *&output, const wchar_t *&input)
{
uint8_t utf8_data[1024] = {0}; // hopefully big enough!!
int num_utf8_words=0;
bool error=false;
while (input && *input && *input == '%' && num_utf8_words < sizeof(utf8_data))
{
if (iswxdigit(input[1]) && iswxdigit(input[2]))
{
utf8_data[num_utf8_words++]=DecodeEscape(input);
}
else if (input[1] == '%')
{
input+=2;
utf8_data[num_utf8_words++]='%';
}
else
{
error = true;
break;
}
}
int len = MultiByteToWideChar(CP_UTF8, 0, (LPCSTR)utf8_data, num_utf8_words, 0, 0);
MultiByteToWideChar(CP_UTF8, 0, (LPCSTR)utf8_data, num_utf8_words, output, len);
output += len;
if (error)
{
*output++ = *input++;
}
}
// benski> We have the luxury of knowing that decoding will ALWAYS produce smaller strings
// so we can do it in-place
void Url::decode(wchar_t *str)
{
const wchar_t *itr = str;
while (itr && *itr)
{
switch (*itr)
{
case '%':
DecodeEscapedUTF8(str, itr);
break;
default:
*str++ = *itr++;
break;
}
}
*str = 0;
}
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