netsurf/css/internal.c
Daniel Silverstone 270ef59a98 Merge jmb/new-cache; r=dsilvers,rs=vince
svn path=/trunk/netsurf/; revision=10180
2010-03-28 12:56:39 +00:00

71 lines
1.8 KiB
C

/*
* Copyright 2009 John-Mark Bell <jmb@netsurf-browser.org>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <string.h>
#include "css/internal.h"
#include "utils/url.h"
/**
* URL resolution callback for libcss
*
* \param pw Resolution context
* \param base Base URI
* \param rel Relative URL
* \param abs Pointer to location to receive resolved URL
* \return CSS_OK on success,
* CSS_NOMEM on memory exhaustion,
* CSS_INVALID if resolution failed.
*/
css_error nscss_resolve_url(void *pw, const char *base,
lwc_string *rel, lwc_string **abs)
{
lwc_error lerror;
char *abs_url, *norm_url;
url_func_result res;
/* Resolve URI */
res = url_join(lwc_string_data(rel), base, &abs_url);
if (res != URL_FUNC_OK) {
return res == URL_FUNC_NOMEM ? CSS_NOMEM : CSS_INVALID;
}
/* Normalise it */
res = url_normalize(abs_url, &norm_url);
if (res != URL_FUNC_OK) {
free(abs_url);
return res == URL_FUNC_NOMEM ? CSS_NOMEM : CSS_INVALID;
}
free(abs_url);
/* Intern it */
lerror = lwc_intern_string(norm_url, strlen(norm_url), abs);
if (lerror != lwc_error_ok) {
*abs = NULL;
free(norm_url);
return lerror == lwc_error_oom ? CSS_NOMEM : CSS_INVALID;
}
free(norm_url);
return CSS_OK;
}