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netsurf/content/fetchers/about/config.c

134 lines
3.4 KiB

/*
* Copyright 2020 Vincent Sanders <vince@netsurf-browser.org>
*
* This file is part of NetSurf.
*
* 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/>.
*/
/**
* \file
* content generator for the about scheme blank page
*/
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include "netsurf/types.h"
#include "utils/errors.h"
#include "utils/nsoption.h"
#include "private.h"
#include "config.h"
/**
* Handler to generate about scheme config page
*
* \param ctx The fetcher context.
* \return true if handled false if aborted.
*/
bool fetch_about_config_handler(struct fetch_about_context *ctx)
{
char buffer[1024];
int slen = 0;
unsigned int opt_loop = 0;
int elen = 0; /* entry length */
nserror res;
bool even = false;
/* content is going to return ok */
fetch_about_set_http_code(ctx, 200);
/* content type */
if (fetch_about_send_header(ctx, "Content-Type: text/html")) {
goto fetch_about_config_handler_aborted;
}
res = fetch_about_ssenddataf(ctx,
"<html>\n<head>\n"
"<title>NetSurf Browser Config</title>\n"
"<link rel=\"stylesheet\" type=\"text/css\" "
"href=\"resource:internal.css\">\n"
"</head>\n"
"<body "
"id =\"configlist\" "
"class=\"ns-even-bg ns-even-fg ns-border\" "
"style=\"overflow: hidden;\">\n"
"<h1 class=\"ns-border\">NetSurf Browser Config</h1>\n"
"<table class=\"config\">\n"
"<tr><th>Option</th>"
"<th>Type</th>"
"<th>Provenance</th>"
"<th>Setting</th></tr>\n");
if (res != NSERROR_OK) {
goto fetch_about_config_handler_aborted;
}
do {
if (even) {
elen = nsoption_snoptionf(buffer + slen,
sizeof buffer - slen,
opt_loop,
"<tr class=\"ns-even-bg\">"
"<th class=\"ns-border\">%k</th>"
"<td class=\"ns-border\">%t</td>"
"<td class=\"ns-border\">%p</td>"
"<td class=\"ns-border\">%V</td>"
"</tr>\n");
} else {
elen = nsoption_snoptionf(buffer + slen,
sizeof buffer - slen,
opt_loop,
"<tr class=\"ns-odd-bg\">"
"<th class=\"ns-border\">%k</th>"
"<td class=\"ns-border\">%t</td>"
"<td class=\"ns-border\">%p</td>"
"<td class=\"ns-border\">%V</td>"
"</tr>\n");
}
if (elen <= 0)
break; /* last option */
if (elen >= (int) (sizeof buffer - slen)) {
/* last entry would not fit in buffer, submit buffer */
res = fetch_about_senddata(ctx, (const uint8_t *)buffer, slen);
if (res != NSERROR_OK) {
goto fetch_about_config_handler_aborted;
}
slen = 0;
} else {
/* normal addition */
slen += elen;
opt_loop++;
even = !even;
}
} while (elen > 0);
slen += snprintf(buffer + slen, sizeof buffer - slen,
"</table>\n</body>\n</html>\n");
res = fetch_about_senddata(ctx, (const uint8_t *)buffer, slen);
if (res != NSERROR_OK) {
goto fetch_about_config_handler_aborted;
}
fetch_about_send_finished(ctx);
return true;
fetch_about_config_handler_aborted:
return false;
}