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Implement urlencode and urldecode

This commit is contained in:
Kahrl 2013-08-29 05:56:48 +02:00
parent 0404bbf671
commit 0a903e69fb
4 changed files with 57 additions and 6 deletions

View file

@ -21,8 +21,12 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "pointer.h"
#include "numeric.h"
#include <sstream>
#include <iomanip>
#include "../sha1.h"
#include "../base64.h"
#include "../hex.h"
#include "../porting.h"
std::wstring narrow_to_wide(const std::string& mbs)
@ -68,11 +72,40 @@ std::string translatePassword(std::string playername, std::wstring password)
return pwd;
}
size_t curl_write_data(char *ptr, size_t size, size_t nmemb, void *userdata) {
std::ostringstream *stream = (std::ostringstream*)userdata;
size_t count = size * nmemb;
stream->write(ptr, count);
return count;
std::string urlencode(std::string str)
{
// Encodes non-unreserved URI characters by a percent sign
// followed by two hex digits. See RFC 3986, section 2.3.
static const char url_hex_chars[] = "0123456789ABCDEF";
std::ostringstream oss(std::ios::binary);
for (u32 i = 0; i < str.size(); i++) {
unsigned char c = str[i];
if (isalnum(c) || c == '-' || c == '.' || c == '_' || c == '~')
oss << c;
else
oss << "%"
<< url_hex_chars[(c & 0xf0) >> 4]
<< url_hex_chars[c & 0x0f];
}
return oss.str();
}
std::string urldecode(std::string str)
{
// Inverse of urlencode
std::ostringstream oss(std::ios::binary);
for (u32 i = 0; i < str.size(); i++) {
unsigned char highvalue, lowvalue;
if (str[i] == '%' &&
hex_digit_decode(str[i+1], highvalue) &&
hex_digit_decode(str[i+2], lowvalue)) {
oss << (char) ((highvalue << 4) | lowvalue);
i += 2;
}
else
oss << str[i];
}
return oss.str();
}
u32 readFlagString(std::string str, FlagDesc *flagdesc) {