28 #ifndef _STRING_CODING_H_ 29 #define _STRING_CODING_H_ 35 namespace string_encoding
75 for(
unsigned int i= 0; i < str_from.size(); ++i)
77 result += std::use_facet<std::ctype<wchar_t> >(loc).widen(str_from[i]);
101 template<
class target_
string>
116 template<
class target_
string>
135 static std::string chars =
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" 136 "abcdefghijklmnopqrstuvwxyz" 148 unsigned char char_array_3[3];
149 unsigned char char_array_4[4];
152 char_array_3[i++] = *(bytes_to_encode++);
154 char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;
155 char_array_4[1] = ((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4);
156 char_array_4[2] = ((char_array_3[1] & 0x0f) << 2) + ((char_array_3[2] & 0xc0) >> 6);
157 char_array_4[3] = char_array_3[2] & 0x3f;
159 for(i = 0; (i <4) ; i++)
167 for(j = i; j < 3; j++)
168 char_array_3[j] =
'\0';
170 char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;
171 char_array_4[1] = ((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4);
172 char_array_4[2] = ((char_array_3[1] & 0x0f) << 2) + ((char_array_3[2] & 0xc0) >> 6);
173 char_array_4[3] = char_array_3[2] & 0x3f;
175 for (j = 0; (j < i + 1); j++)
190 return base64_encode((
unsigned char const* )str.data(), str.size());
194 return (isalnum(c) || (c ==
'+') || (c ==
'/'));
200 size_t in_len = encoded_string.size();
204 unsigned char char_array_4[4], char_array_3[3];
207 while (in_len-- && ( encoded_string[in_] !=
'=') &&
is_base64(encoded_string[in_])) {
208 char_array_4[i++] = encoded_string[in_]; in_++;
210 for (i = 0; i <4; i++)
211 char_array_4[i] = (
unsigned char)
base64_chars().find(char_array_4[i]);
213 char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
214 char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
215 char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];
217 for (i = 0; (i < 3); i++)
218 ret += char_array_3[i];
224 for (j = i; j <4; j++)
227 for (j = 0; j <4; j++)
228 char_array_4[j] = (
unsigned char)
base64_chars().find(char_array_4[j]);
230 char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
231 char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
232 char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];
234 for (j = 0; (j < i - 1); j++) ret += char_array_3[j];
243 #endif //_STRING_CODING_H_
std::string base64_encode(unsigned char const *bytes_to_encode, size_t in_len)
std::wstring convert_to_unicode(const std::string &str_from)
std::string convert_to_ansii(const std::wstring &str_from)
bool is_base64(unsigned char c)
target_string convert_to_t(const std::wstring &str_from)
std::string base64_decode(std::string const &encoded_string)
std::string & base64_chars()