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107 lines
2.4 KiB
107 lines
2.4 KiB
/*
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* Copyright 2020 Vincent Sanders <vince@netsurf-browser.org>
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*
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* This file is part of NetSurf.
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*
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* NetSurf 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; version 2 of the License.
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*
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* NetSurf 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* \file
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* content generator for the about scheme web search
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <stdlib.h>
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#include <string.h>
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#include "utils/errors.h"
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#include "utils/nsurl.h"
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#include "utils/url.h"
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#include "content/fetch.h"
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#include "desktop/searchweb.h"
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#include "private.h"
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#include "websearch.h"
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static nserror
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process_query_section(const char *str, size_t len, char **term)
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{
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if (len < 3) {
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return NSERROR_BAD_PARAMETER;
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}
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if (str[0] != 'q' || str[1] != '=') {
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return NSERROR_BAD_PARAMETER;
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}
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return url_unescape(str + 2, len - 2, NULL, term);
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}
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static nserror
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searchterm_from_query(struct nsurl *url, char **term)
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{
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nserror res;
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char *querystr;
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size_t querylen;
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size_t kvstart;/* key value start */
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size_t kvlen; /* key value end */
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res = nsurl_get(url, NSURL_QUERY, &querystr, &querylen);
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if (res != NSERROR_OK) {
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return res;
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}
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for (kvlen = 0, kvstart = 0; kvstart < querylen; kvstart += kvlen) {
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/* get query section length */
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kvlen = 0;
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while (((kvstart + kvlen) < querylen) &&
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(querystr[kvstart + kvlen] != '&')) {
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kvlen++;
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}
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res = process_query_section(querystr + kvstart, kvlen, term);
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if (res == NSERROR_OK) {
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break;
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}
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kvlen++; /* account for & separator */
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}
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free(querystr);
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return res;
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}
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bool fetch_about_websearch_handler(struct fetch_about_context *ctx)
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{
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nserror res;
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nsurl *url;
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char *term;
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res = searchterm_from_query(fetch_about_get_url(ctx), &term);
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if (res != NSERROR_OK) {
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return false;
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}
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res = search_web_omni(term, SEARCH_WEB_OMNI_SEARCHONLY, &url);
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free(term);
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if (res != NSERROR_OK) {
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return false;
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}
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fetch_about_redirect(ctx, nsurl_access(url));
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nsurl_unref(url);
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return true;
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}
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