90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
/*
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* Copyright (C) 2010-2015 Mamadou DIOP.
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*
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* This file is part of Open Source Doubango Framework.
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*
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* DOUBANGO is free software: you can redistribute it and/or modify
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* it 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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*
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* DOUBANGO is distributed in the hope that it will be useful,
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* but 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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*
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* You should have received a copy of the GNU General Public License
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* along with DOUBANGO.
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*
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*/
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/**@file tsk_url.c
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* @brief Utility functions to encode/decode urls.
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*
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*/
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#include "tsk_url.h"
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#include "tsk_memory.h"
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#include "tsk_string.h"
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#include <ctype.h>
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#include <string.h>
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/**@defgroup tsk_url_group Utility functions to encode/decode urls.
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*/
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/**@ingroup tsk_url_group
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* Encode an url.
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* @param url The url to encode
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* @retval The encoded url. It is up to you to free the returned string.
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*
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* @sa tsk_url_decode
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*
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*/
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char* tsk_url_encode(const char* url) {
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char *purl = (char*)url, *buf = (char*)tsk_malloc(tsk_strlen(url) * 3 + 1), *pbuf = buf;
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while (*purl) {
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if (isalnum(*purl) || *purl == '-' || *purl == '_' || *purl == '.' || *purl == '~'){
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*pbuf++ = *purl;
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}
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else if (*purl == ' '){
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*pbuf++ = '+';
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}
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else{
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*pbuf++ = '%', *pbuf++ = tsk_b10tob16(*purl >> 4), *pbuf++ = tsk_b10tob16(*purl & 15);
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}
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purl++;
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}
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*pbuf = '\0';
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return buf;
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}
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/**@ingroup tsk_url_group
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* Decode an url.
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* @param url The url to encode
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* @retval The decoded url. It is up to you to free the returned string.
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*
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* @sa tsk_url_encode
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*/
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char* tsk_url_decode(const char* url) {
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char *purl = (char*)url, *buf = (char*)tsk_malloc(tsk_strlen(url) + 1), *pbuf = buf;
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while (*purl) {
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if (*purl == '%') {
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if (purl[1] && purl[2]) {
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*pbuf++ = tsk_b16tob10(purl[1]) << 4 | tsk_b16tob10(purl[2]);
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purl += 2;
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}
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}
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else if (*purl == '+') {
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*pbuf++ = ' ';
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}
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else {
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*pbuf++ = *purl;
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}
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purl++;
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}
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*pbuf = '\0';
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return buf;
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}
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