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/*
* Copyright (c) 2015, Vsevolod Stakhov
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "libutil/util.h"
#include "libserver/cfg_file.h"
#include "libserver/cfg_rcl.h"
#include "libserver/worker_util.h"
#include "libserver/rspamd_control.h"
#include "unix-std.h"
#ifdef HAVE_GLOB_H
#include <glob.h>
#endif
static gpointer init_hs_helper (struct rspamd_config *cfg);
static void start_hs_helper (struct rspamd_worker *worker);
worker_t hs_helper_worker = {
"hs_helper", /* Name */
init_hs_helper, /* Init function */
start_hs_helper, /* Start function */
FALSE, /* No socket */
TRUE, /* Unique */
FALSE, /* Non threaded */
TRUE, /* Killable */
SOCK_STREAM /* TCP socket */
};
/*
* Worker's context
*/
struct hs_helper_ctx {
const gchar *hs_dir;
struct rspamd_config *cfg;
struct event_base *ev_base;
};
static gpointer
init_hs_helper (struct rspamd_config *cfg)
{
struct hs_helper_ctx *ctx;
GQuark type;
type = g_quark_try_string ("hs_helper");
ctx = g_malloc0 (sizeof (*ctx));
ctx->cfg = cfg;
ctx->hs_dir = RSPAMD_DBDIR "/";
rspamd_rcl_register_worker_option (cfg, type, "cache_dir",
rspamd_rcl_parse_struct_string, ctx,
G_STRUCT_OFFSET (struct hs_helper_ctx, hs_dir), 0);
return ctx;
}
/**
* Clean
*/
static gboolean
rspamd_hs_helper_cleanup_dir (struct hs_helper_ctx *ctx)
{
struct stat st;
glob_t globbuf;
guint len, i;
gint rc;
gchar *pattern;
gboolean ret = TRUE;
if (stat (ctx->hs_dir, &st) == -1) {
msg_err ("cannot stat path %s, %s",
ctx->hs_dir,
strerror (errno));
return FALSE;
}
globbuf.gl_offs = 0;
len = strlen (ctx->hs_dir) + 1 + sizeof ("*.hs");
pattern = g_malloc (len);
rspamd_snprintf (pattern, len, "%s%c%s", ctx->hs_dir, G_DIR_SEPARATOR, "*.hs");
if ((rc = glob (pattern, GLOB_DOOFFS, NULL, &globbuf)) == 0) {
for (i = 0; i < globbuf.gl_pathc; i++) {
if (unlink (globbuf.gl_pathv[i]) == -1) {
msg_err ("cannot unlink %s: %s", globbuf.gl_pathv[i],
strerror (errno));
ret = FALSE;
}
}
}
else if (rc != GLOB_NOMATCH) {
msg_err ("glob %s failed: %s", pattern, strerror (errno));
ret = FALSE;
}
globfree (&globbuf);
g_free (pattern);
return ret;
}
static void
start_hs_helper (struct rspamd_worker *worker)
{
struct hs_helper_ctx *ctx = worker->ctx;
GError *err = NULL;
struct rspamd_srv_command srv_cmd;
ctx->ev_base = rspamd_prepare_worker (worker,
"hs_helper",
NULL);
if (!rspamd_hs_helper_cleanup_dir (ctx)) {
msg_warn ("cannot cleanup cache dir '%s'", ctx->hs_dir);
}
if (!rspamd_re_cache_compile_hyperscan (ctx->cfg->re_cache,
ctx->hs_dir,
&err)) {
msg_err ("failed to compile re cache: %e", err);
g_error_free (err);
/* Tell main not to respawn process */
exit (EXIT_SUCCESS);
}
event_base_loop (ctx->ev_base, 0);
rspamd_worker_block_signals ();
rspamd_log_close (worker->srv->logger);
exit (EXIT_SUCCESS);
}
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