/** * @file llbase64.cpp * @brief Wrapper for apr base64 encoding that returns a std::string * @author James Cook * * $LicenseInfo:firstyear=2007&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2010, Linden Research, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ #include "linden_common.h" #include "llbase64.h" #include <string> #include "apr_base64.h" // static std::string LLBase64::encode(const U8* input, size_t input_size) { std::string output; if (input && input_size > 0) { // Yes, it returns int. int b64_buffer_length = apr_base64_encode_len(narrow<size_t>(input_size)); char* b64_buffer = new char[b64_buffer_length]; // This is faster than apr_base64_encode() if you know // you're not on an EBCDIC machine. Also, the output is // null terminated, even though the documentation doesn't // specify. See apr_base64.c for details. JC b64_buffer_length = apr_base64_encode_binary( b64_buffer, input, narrow<size_t>(input_size)); output.assign(b64_buffer); delete[] b64_buffer; } return output; } std::string LLBase64::decodeAsString(const std::string &input) { int b64_buffer_length = apr_base64_decode_len(input.c_str()); char* b64_buffer = new char[b64_buffer_length]; // This is faster than apr_base64_encode() if you know // you're not on an EBCDIC machine. Also, the output is // null terminated, even though the documentation doesn't // specify. See apr_base64.c for details. JC b64_buffer_length = apr_base64_decode(b64_buffer, input.c_str()); std::string res; res.assign(b64_buffer); delete[] b64_buffer; return res; }