void
VUT_Fini(void)
{
free(VUT.n_arg);
free(VUT.N_arg);
free(VUT.r_arg);
free(VUT.P_arg);
free(VUT.name);
vut_vpf_remove();
AZ(VUT.pfh);
if (VUT.vslq)
VSLQ_Delete(&VUT.vslq);
if (VUT.vsl)
VSL_Delete(VUT.vsl);
if (VUT.vsm)
VSM_Delete(VUT.vsm);
memset(&VUT, 0, sizeof VUT);
}
static unsigned int vlog_reply(struct http_request *request, void *data)
{
struct vlog_req_priv vrp = { .limit = 10 };
int disp_status;
char *p;
char *tag = NULL;
char *tag_re = NULL;
struct VSL_data *vsl = NULL;
struct VSLQ *vslq = NULL;
struct VSL_cursor *c = NULL;
enum VSL_grouping_e grouping = VSL_g_request;
struct agent_core_t *core = data;
p = next_slash(request->url + 1);
if (p) {
char *lim = strdup(p);
assert(lim);
char *tmp2 = strchr(lim, '/');
if (tmp2 && *tmp2) *tmp2 = '\0';
int j = sscanf(lim, "%u", &vrp.limit);
if(j != 1) {
free(lim);
http_reply(request->connection, 500, "Not a number");
return 0;
}
free(lim);
p = next_slash(p);
}
if (p) {
tag = strdup(p);
char *tmp2 = strchr(tag,'/');
if (tmp2 && *tmp2) *tmp2 = '\0';
p = next_slash(p);
}
if (p) {
tag_re = strdup(p);
char *tmp2 = strchr(tag_re, '/');
if (tmp2 && *tmp2) *tmp2 = '\0';
p = next_slash(p);
}
vrp.answer = VSB_new_auto();
assert(vrp.answer != NULL);
vrp.vsm = VSM_New();
assert(vrp.vsm);
if (!VSM_n_Arg(vrp.vsm, core->config->n_arg)) {
VSB_printf(vrp.answer, "Error in creating shmlog: %s",
VSM_Error(vrp.vsm));
VSB_finish(vrp.answer);
http_reply(request->connection, 500, VSB_data(vrp.answer));
goto cleanup;
}
if (VSM_Open(vrp.vsm) != 0) {
VSB_printf(vrp.answer, "Error in opening shmlog: %s",
VSM_Error(vrp.vsm));
VSB_finish(vrp.answer);
http_reply(request->connection, 500, VSB_data(vrp.answer));
goto cleanup;
}
vsl = VSL_New();
assert(vsl);
if (tag) {
grouping = VSL_g_raw;
if (VSL_Arg(vsl, 'i', tag) < 0) {
VSB_printf(vrp.answer, "Unable to specify tag '%s': %s",
tag, VSL_Error(vsl));
VSB_finish(vrp.answer);
http_reply(request->connection, 500, VSB_data(vrp.answer));
goto cleanup;
}
if (tag_re) {
VSL_Arg(vsl,'I', tag_re);
}
}
c = VSL_CursorVSM(vsl, vrp.vsm,
VSL_COPT_BATCH | VSL_COPT_TAILSTOP);
if (c == NULL) {
VSB_printf(vrp.answer, "Can't open log (%s)",
VSL_Error(vsl));
VSB_finish(vrp.answer);
http_reply(request->connection, 500, VSB_data(vrp.answer));
goto cleanup;
}
vslq = VSLQ_New(vsl, &c, grouping, NULL);
if (vslq == NULL) {
VSB_clear(vrp.answer);
VSB_printf(vrp.answer, "Error in creating query: %s",
VSL_Error(vsl));
http_reply(request->connection, 500, VSB_data(vrp.answer));
goto cleanup;
}
VSB_printf(vrp.answer, "{ \"log\": [");
do {
disp_status = VSLQ_Dispatch(vslq, vlog_cb_func, &vrp);
} while (disp_status == 1 && vrp.entries < vrp.limit);
VSB_printf(vrp.answer, "\n] }\n");
assert(VSB_finish(vrp.answer) == 0);
if (VSB_len(vrp.answer) > 1) {
struct http_response *resp = http_mkresp(request->connection, 200, NULL);
resp->data = VSB_data(vrp.answer);
resp->ndata = VSB_len(vrp.answer);
http_add_header(resp,"Content-Type","application/json");
send_response(resp);
http_free_resp(resp);
} else {
http_reply(request->connection, 500, "FAIL");
}
cleanup:
free(tag);
free(tag_re);
VSB_delete(vrp.answer);
if (vslq)
VSLQ_Delete(&vslq);
if (vsl)
VSL_Delete(vsl);
if (vrp.vsm)
VSM_Delete(vrp.vsm);
vrp.answer = NULL;
return 0;
}
void vlog_init(struct agent_core_t *core)
{
struct agent_plugin_t *plug;
struct vlog_priv_t *priv;
ALLOC_OBJ(priv);
plug = plugin_find(core,"vlog");
plug->data = priv;
http_register_url(core, "/log", M_GET, vlog_reply, core);
}
