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/*
* Base64 encoding and decoding routines
*
* Copyright (C) 2004-2008 René Nyffenegger
* Modified by Phusion for inclusion in Phusion Passenger.
*
* This source code is provided 'as-is', without any express or implied
* warranty. In no event will the author be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this source code must not be misrepresented; you must not
* claim that you wrote the original source code. If you use this source code
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original source code.
*
* 3. This notice may not be removed or altered from any source distribution.
*
* René Nyffenegger rene.nyffenegger@adp-gmbh.ch
*
*/
#ifndef _PASSENGER_BASE64_H_
#define _PASSENGER_BASE64_H_
#include <iostream>
#include <string>
#include "../StaticString.h"
namespace Passenger {
using namespace std;
class Base64 {
public:
static string encode(const StaticString &data) {
return encode((const unsigned char *) data.data(), data.size());
}
/** Encode using a modified Base64 format, suitable for inclusion in URLs without
* needing escaping.
*/
static string encodeForUrl(const StaticString &data) {
string result = encode(data);
string::size_type i;
int paddingSize = 0;
for (i = 0; i < result.size(); i++) {
char c = result[i];
if (c == '+') {
result[i] = '-';
} else if (c == '/') {
result[i] = '_';
} else if (c == '=') {
paddingSize++;
}
}
if (paddingSize > 0) {
result.resize(result.size() - paddingSize);
}
return result;
}
static string decode(const StaticString &base64_data) {
return decode((const unsigned char *) base64_data.data(), base64_data.size());
}
static string encode(const unsigned char *data, unsigned int len);
static string decode(const unsigned char *base64_data, unsigned int len);
};
} // namespace Passenger
#endif /* _PASSENGER_BASE64_H_ */
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