136 lines
3.6 KiB
C++
136 lines
3.6 KiB
C++
/*
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Copyright 2015-2018 Amebis
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Copyright 2016 GÉANT
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This file is part of wxExtend.
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wxExtend is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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wxExtend is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with wxExtend. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "stdafx.h"
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size_t WXEXTEND_API wxURLEncode(char *dst, size_t dstLen, const char *src, size_t srcLen)
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{
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wxCHECK_MSG(src, wxCONV_FAILED, wxT("NULL input buffer"));
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static const char bhex[] = "0123456789ABCDEF";
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size_t encLen = 0;
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for (size_t i = 0; i < srcLen && src[i]; i++) {
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if (wxURLIsProtected(src[i])) {
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encLen += 3;
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if ( dst )
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{
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if ( encLen > dstLen )
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return wxCONV_FAILED;
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*dst++ = '%';
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*dst++ = bhex[((unsigned char)src[i]) >> 4];
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*dst++ = bhex[((unsigned char)src[i]) & 0x0f];
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}
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} else {
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encLen ++;
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if ( dst )
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{
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if ( encLen > dstLen )
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return wxCONV_FAILED;
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*dst++ = src[i];
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}
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}
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}
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// Zero terminate.
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if ( dst && encLen < dstLen )
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*dst++ = 0;
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return encLen;
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}
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size_t WXEXTEND_API wxURLDecode(char *dst, size_t dstLen, const char *src, size_t srcLen)
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{
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wxCHECK_MSG(src, wxCONV_FAILED, wxT("NULL input buffer"));
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static const char bhex[] = "0123456789ABCDEF";
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size_t i, decLen = 0;
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for (i = 0 ; i < srcLen && src[i];) {
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decLen ++;
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if (src[i] == '%') {
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// Decode % escaped hex value to character.
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char c = 0;
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size_t j = i + 1;
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for (size_t j_max = i + 3; j < j_max && j < srcLen; j++) {
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char x = src[j];
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c <<= 4;
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if ('0' <= x && x <= '9') c += x - '0';
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else if ('A' <= x && x <= 'F') c += x - 'A' + 10;
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else if ('a' <= x && x <= 'f') c += x - 'a' + 10;
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else break;
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}
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if (c) {
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if ( dst )
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{
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if ( decLen > dstLen )
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return wxCONV_FAILED;
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*dst++ = c;
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}
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i = j;
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continue;
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}
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}
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if ( dst )
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{
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if ( decLen > dstLen )
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return wxCONV_FAILED;
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*dst++ = src[i];
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}
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i++;
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}
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// Zero terminate.
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if ( dst && decLen < dstLen )
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*dst++ = 0;
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return decLen;
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}
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wxMemoryBuffer WXEXTEND_API wxURLDecode(const char *src, size_t srcLen)
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{
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wxMemoryBuffer buf;
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wxCHECK_MSG( src, buf, wxT("NULL input buffer") );
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if ( srcLen == wxNO_LEN )
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srcLen = strlen(src);
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size_t len = wxURLDecodedSize(srcLen);
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len = wxURLDecode(reinterpret_cast<char*>(buf.GetWriteBuf(len)), len, src, srcLen);
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if ( len == wxCONV_FAILED )
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len = 0;
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buf.SetDataLen(len);
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return buf;
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}
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