efa7f42020
Make sure the behavior does not change with the locale. Signed-off-by: Martin Storsjö <martin@martin.st>
87 lines
2.3 KiB
C
87 lines
2.3 KiB
C
/*
|
|
* Simple URL decoding function
|
|
* Copyright (c) 2012 Antti Seppälä
|
|
*
|
|
* References:
|
|
* RFC 3986: Uniform Resource Identifier (URI): Generic Syntax
|
|
* T. Berners-Lee et al. The Internet Society, 2005
|
|
*
|
|
* based on http://www.icosaedro.it/apache/urldecode.c
|
|
* from Umberto Salsi (salsi@icosaedro.it)
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav 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; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* Libav 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 Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <string.h>
|
|
|
|
#include "libavutil/mem.h"
|
|
#include "libavutil/avstring.h"
|
|
#include "urldecode.h"
|
|
|
|
char *ff_urldecode(const char *url)
|
|
{
|
|
int s = 0, d = 0, url_len = 0;
|
|
char c;
|
|
char *dest = NULL;
|
|
|
|
if (!url)
|
|
return NULL;
|
|
|
|
url_len = strlen(url) + 1;
|
|
dest = av_malloc(url_len);
|
|
|
|
if (!dest)
|
|
return NULL;
|
|
|
|
while (s < url_len) {
|
|
c = url[s++];
|
|
|
|
if (c == '%' && s + 2 < url_len) {
|
|
char c2 = url[s++];
|
|
char c3 = url[s++];
|
|
if (av_isxdigit(c2) && av_isxdigit(c3)) {
|
|
c2 = av_tolower(c2);
|
|
c3 = av_tolower(c3);
|
|
|
|
if (c2 <= '9')
|
|
c2 = c2 - '0';
|
|
else
|
|
c2 = c2 - 'a' + 10;
|
|
|
|
if (c3 <= '9')
|
|
c3 = c3 - '0';
|
|
else
|
|
c3 = c3 - 'a' + 10;
|
|
|
|
dest[d++] = 16 * c2 + c3;
|
|
|
|
} else { /* %zz or something other invalid */
|
|
dest[d++] = c;
|
|
dest[d++] = c2;
|
|
dest[d++] = c3;
|
|
}
|
|
} else if (c == '+') {
|
|
dest[d++] = ' ';
|
|
} else {
|
|
dest[d++] = c;
|
|
}
|
|
|
|
}
|
|
|
|
return dest;
|
|
}
|