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/*
* cafile.c
* vim: expandtab:ts=4:sts=4:sw=4
*
* Copyright (C) 2022 Steffen Jaeckel <jaeckel-floss@eyet-services.de>
*
* This file is part of Profanity.
*
* Profanity 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, either version 3 of the License, or
* (at your option) any later version.
*
* Profanity 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 Profanity. If not, see <https://www.gnu.org/licenses/>.
*
* In addition, as a special exception, the copyright holders give permission to
* link the code of portions of this program with the OpenSSL library under
* certain conditions as described in each individual source file, and
* distribute linked combinations including the two.
*
* You must obey the GNU General Public License in all respects for all of the
* code used other than OpenSSL. If you modify file(s) with this exception, you
* may extend this exception to your version of the file(s), but you are not
* obligated to do so. If you do not wish to do so, delete this exception
* statement from your version. If you delete this exception statement from all
* source files in the program, then also delete it here.
*
*/
#include "config.h"
#include <fcntl.h>
#include <glib.h>
#include <errno.h>
#include <string.h>
#include <sys/wait.h>
#include "common.h"
#include "config/files.h"
#include "log.h"
#include "xmpp/xmpp.h"
static gchar*
_cafile_name(void)
{
gchar* certs_dir = files_get_data_path(DIR_CERTS);
if (!create_dir(certs_dir)) {
g_free(certs_dir);
return NULL;
}
gchar* filename = g_strdup_printf("%s/CAfile.pem", certs_dir);
g_free(certs_dir);
return filename;
}
void
cafile_add(const TLSCertificate* cert)
{
if (!cert->pem) {
log_error("[CAfile] can't store cert with fingerprint %s: PEM is empty", cert->fingerprint);
return;
}
gchar* cafile = _cafile_name();
if (!cafile)
return;
gchar *contents = NULL, *new_contents = NULL;
gsize length;
GError* glib_error = NULL;
if (g_file_test(cafile, G_FILE_TEST_EXISTS)) {
if (!g_file_get_contents(cafile, &contents, &length, &glib_error)) {
log_error("[CAfile] could not read from %s: %s", cafile, glib_error ? glib_error->message : "No GLib error given");
goto out;
}
if (strstr(contents, cert->fingerprint)) {
log_debug("[CAfile] fingerprint %s already stored", cert->fingerprint);
goto out;
}
}
const char* header = "# Profanity CAfile\n# DO NOT EDIT - this file is automatically generated";
new_contents = g_strdup_printf("%s\n\n# %s\n%s", contents ? contents : header, cert->fingerprint, cert->pem);
if (!g_file_set_contents(cafile, new_contents, -1, &glib_error))
log_error("[CAfile] could not write to %s: %s", cafile, glib_error ? glib_error->message : "No GLib error given");
out:
g_free(new_contents);
g_free(contents);
g_free(cafile);
}
gchar*
cafile_get_name(void)
{
gchar* cafile = _cafile_name();
if (!g_file_test(cafile, G_FILE_TEST_EXISTS)) {
/* That's no problem!
* There's no need to have a profanity-specific CAfile if all CA's
* of servers you're trying to connect to are in your OS trust-store
*/
log_debug("[CAfile] file %s not created yet", cafile);
g_free(cafile);
cafile = NULL;
}
return cafile;
}
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