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app_jsdt_api.c
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app_jsdt_api.c
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/**
* Copyright (C) 2017 Daniel-Constantin Mierla (asipto.com)
*
* This file is part of Kamailio, a free SIP server.
*
* This file 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 2 of the License, or
* (at your option) any later version
*
*
* This file 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include "../../core/dprint.h"
#include "../../core/pvar.h"
#include "../../core/sr_module.h"
#include "../../core/mem/shm.h"
#include "../../core/rpc.h"
#include "../../core/rpc_lookup.h"
#include "duktape.h"
#include "duk_module_node.h"
#include "app_jsdt_kemi_export.h"
#include "app_jsdt_api.h"
#define SRJSDT_FALSE 0
#define SRJSDT_TRUE 1
void jsdt_sr_kemi_register_libs(duk_context *J);
typedef struct _sr_jsdt_env
{
duk_context *J;
duk_context *JJ;
sip_msg_t *msg;
unsigned int flags;
unsigned int nload; /* number of scripts loaded */
} sr_jsdt_env_t;
static sr_jsdt_env_t _sr_J_env = {0};
str _sr_jsdt_load_file = STR_NULL;
int _sr_jsdt_mode = 1;
static int *_sr_jsdt_reload_version = NULL;
static int _sr_jsdt_local_version = 0;
/**
*
*/
sr_jsdt_env_t *jsdt_sr_env_get(void)
{
return &_sr_J_env;
}
/**
*
*/
int jsdt_sr_initialized(void)
{
if(_sr_J_env.J == NULL)
return 0;
return 1;
}
/**
*
*/
#define JSDT_SR_EXIT_THROW_STR "~~ksr~exit~~"
#define JSDT_SR_EXIT_EXEC_STR "throw '" JSDT_SR_EXIT_THROW_STR "';"
static str _sr_kemi_jsdt_exit_string = str_init(JSDT_SR_EXIT_THROW_STR);
/**
*
*/
str *sr_kemi_jsdt_exit_string_get(void)
{
return &_sr_kemi_jsdt_exit_string;
}
/**
*
*/
int app_jsdt_return_int(duk_context *J, int v)
{
duk_push_int(J, v);
return 1;
}
/**
*
*/
int app_jsdt_return_error(duk_context *J)
{
duk_push_int(J, -1);
return 1;
}
/**
*
*/
int app_jsdt_return_boolean(duk_context *J, int b)
{
if(b == SRJSDT_FALSE)
duk_push_boolean(J, SRJSDT_FALSE);
else
duk_push_boolean(J, SRJSDT_TRUE);
return 1;
}
/**
*
*/
int app_jsdt_return_false(duk_context *J)
{
duk_push_boolean(J, SRJSDT_FALSE);
return 1;
}
/**
*
*/
int app_jsdt_return_true(duk_context *J)
{
duk_push_boolean(J, SRJSDT_TRUE);
return 1;
}
/**
*
*/
int sr_kemi_jsdt_return_int(duk_context *J, sr_kemi_t *ket, int rc)
{
if(ket->rtype == SR_KEMIP_INT) {
duk_push_int(J, rc);
return 1;
}
if(ket->rtype == SR_KEMIP_BOOL && rc != SR_KEMI_FALSE) {
return app_jsdt_return_true(J);
}
return app_jsdt_return_false(J);
}
/**
*
*/
int sr_kemi_jsdt_return_xval(duk_context *J, sr_kemi_t *ket, sr_kemi_xval_t *rx)
{
switch(rx->vtype) {
case SR_KEMIP_NONE:
return 0;
case SR_KEMIP_INT:
duk_push_int(J, rx->v.n);
return 1;
case SR_KEMIP_LONG:
duk_push_number(J, rx->v.l);
return 1;
case SR_KEMIP_STR:
duk_push_lstring(J, rx->v.s.s, rx->v.s.len);
return 1;
case SR_KEMIP_BOOL:
if(rx->v.n != SR_KEMI_FALSE) {
duk_push_boolean(J, SRJSDT_TRUE);
} else {
duk_push_boolean(J, SRJSDT_FALSE);
}
return 1;
case SR_KEMIP_ARRAY:
LM_ERR("unsupported return type: array\n");
sr_kemi_xval_free(rx);
duk_push_string(J, NULL);
return 1;
case SR_KEMIP_DICT:
LM_ERR("unsupported return type: map\n");
sr_kemi_xval_free(rx);
duk_push_string(J, NULL);
return 1;
case SR_KEMIP_XVAL:
/* unknown content - return false */
duk_push_boolean(J, SRJSDT_FALSE);
return 1;
case SR_KEMIP_NULL:
duk_push_string(J, NULL);
return 1;
default:
/* unknown type - return false */
duk_push_boolean(J, SRJSDT_FALSE);
return 1;
}
}
/**
*
*/
static int jsdt_sr_exit(duk_context *J)
{
duk_eval_string_noresult(J, JSDT_SR_EXIT_EXEC_STR);
return 0;
}
/**
*
*/
static int jsdt_sr_drop(duk_context *J)
{
sr_kemi_core_set_drop(NULL);
duk_eval_string_noresult(J, JSDT_SR_EXIT_EXEC_STR);
return 0;
}
/**
*
*/
static int jsdt_sr_modf(duk_context *J)
{
int ret;
char *jsdtv[MAX_ACTIONS];
char *argv[MAX_ACTIONS];
int argc;
int i;
int mod_type;
struct run_act_ctx ra_ctx;
struct action *act;
ksr_cmd_export_t *expf;
sr_jsdt_env_t *env_J;
ret = 1;
act = NULL;
argc = 0;
memset(jsdtv, 0, MAX_ACTIONS * sizeof(char *));
memset(argv, 0, MAX_ACTIONS * sizeof(char *));
env_J = jsdt_sr_env_get();
if(env_J->msg == NULL)
goto error;
argc = duk_get_top(J);
if(argc == 0) {
LM_ERR("name of module function not provided\n");
goto error;
}
if(argc >= MAX_ACTIONS) {
LM_ERR("too many parameters\n");
goto error;
}
/* first is function name, then parameters */
for(i = 0; i < argc; i++) {
if(!duk_is_string(J, i)) {
LM_ERR("invalid parameter type (%d)\n", i);
goto error;
}
jsdtv[i] = (char *)duk_to_string(J, i);
}
LM_ERR("request to execute cfg function '%s'\n", jsdtv[0]);
/* pkg copy only parameters */
for(i = 1; i < MAX_ACTIONS; i++) {
if(jsdtv[i] != NULL) {
argv[i] = (char *)pkg_malloc(strlen(jsdtv[i]) + 1);
if(argv[i] == NULL) {
PKG_MEM_ERROR;
goto error;
}
strcpy(argv[i], jsdtv[i]);
}
}
expf = find_export_record(jsdtv[0], argc - 1, 0);
if(expf == NULL) {
LM_ERR("function '%s' is not available\n", jsdtv[0]);
goto error;
}
/* check fixups */
if(expf->fixup != NULL && expf->free_fixup == NULL) {
LM_ERR("function '%s' has fixup - cannot be used\n", jsdtv[0]);
goto error;
}
switch(expf->param_no) {
case 0:
mod_type = MODULE0_T;
break;
case 1:
mod_type = MODULE1_T;
break;
case 2:
mod_type = MODULE2_T;
break;
case 3:
mod_type = MODULE3_T;
break;
case 4:
mod_type = MODULE4_T;
break;
case 5:
mod_type = MODULE5_T;
break;
case 6:
mod_type = MODULE6_T;
break;
case VAR_PARAM_NO:
mod_type = MODULEX_T;
break;
default:
LM_ERR("unknown/bad definition for function '%s' (%d params)\n",
jsdtv[0], expf->param_no);
goto error;
}
act = mk_action(mod_type, argc + 1 /* number of (type, value) pairs */,
MODEXP_ST, expf, /* function */
NUMBER_ST, argc - 1, /* parameter number */
STRING_ST, argv[1], /* param. 1 */
STRING_ST, argv[2], /* param. 2 */
STRING_ST, argv[3], /* param. 3 */
STRING_ST, argv[4], /* param. 4 */
STRING_ST, argv[5], /* param. 5 */
STRING_ST, argv[6] /* param. 6 */
);
if(act == NULL) {
LM_ERR("action structure could not be created for '%s'\n", jsdtv[0]);
goto error;
}
/* handle fixups */
if(expf->fixup) {
if(argc == 1) {
/* no parameters */
if(expf->fixup(0, 0) < 0) {
LM_ERR("Error in fixup (0) for '%s'\n", jsdtv[0]);
goto error;
}
} else {
for(i = 1; i < argc; i++) {
if(expf->fixup(&(act->val[i + 1].u.data), i) < 0) {
LM_ERR("Error in fixup (%d) for '%s'\n", i, jsdtv[0]);
goto error;
}
act->val[i + 1].type = MODFIXUP_ST;
}
}
}
init_run_actions_ctx(&ra_ctx);
ret = do_action(&ra_ctx, act, env_J->msg);
/* free fixups */
if(expf->fixup) {
for(i = 1; i < argc; i++) {
if((act->val[i + 1].type == MODFIXUP_ST)
&& (act->val[i + 1].u.data)) {
expf->free_fixup(&(act->val[i + 1].u.data), i);
}
}
}
pkg_free(act);
for(i = 0; i < MAX_ACTIONS; i++) {
if(argv[i] != NULL)
pkg_free(argv[i]);
argv[i] = 0;
}
duk_push_int(J, ret);
return 1;
error:
if(act != NULL)
pkg_free(act);
for(i = 0; i < MAX_ACTIONS; i++) {
if(argv[i] != NULL)
pkg_free(argv[i]);
argv[i] = 0;
}
duk_push_int(J, -1);
return 1;
}
const duk_function_list_entry _sr_kemi_x_J_Map[] = {
{"exit", jsdt_sr_exit, 0 /* 0 args */},
{"drop", jsdt_sr_drop, 0 /* 0 args */},
{"modf", jsdt_sr_modf, DUK_VARARGS /* var args */}, {NULL, NULL, 0}};
/**
* load a JS file into context
*/
static int jsdt_load_file(duk_context *ctx, const char *filename)
{
FILE *f;
size_t len;
#define JSDT_SCRIPT_MAX_SIZE 128 * 1024
char buf[JSDT_SCRIPT_MAX_SIZE];
f = fopen(filename, "rb");
if(f) {
len = fread((void *)buf, 1, sizeof(buf), f);
fclose(f);
if(len > 0) {
duk_push_lstring(ctx, (const char *)buf, (duk_size_t)len);
} else {
LM_ERR("empty content\n");
return -1;
}
} else {
LM_ERR("cannot open file\n");
return -1;
}
return 0;
}
/**
*
*/
int jsdt_sr_init_mod(void)
{
if(_sr_jsdt_reload_version == NULL) {
_sr_jsdt_reload_version = (int *)shm_malloc(sizeof(int));
if(_sr_jsdt_reload_version == NULL) {
SHM_MEM_ERROR;
return -1;
}
*_sr_jsdt_reload_version = 0;
}
memset(&_sr_J_env, 0, sizeof(sr_jsdt_env_t));
return 0;
}
/**
*
*/
int jsdt_kemi_load_script(void)
{
if(jsdt_load_file(_sr_J_env.JJ, _sr_jsdt_load_file.s) < 0) {
LM_ERR("failed to load js script file: %.*s\n", _sr_jsdt_load_file.len,
_sr_jsdt_load_file.s);
return -1;
}
if(duk_peval(_sr_J_env.JJ) != 0) {
LM_ERR("failed running: %s\n", duk_safe_to_string(_sr_J_env.JJ, -1));
duk_pop(_sr_J_env.JJ); /* ignore result */
return -1;
}
duk_pop(_sr_J_env.JJ); /* ignore result */
return 0;
}
/**
*
*/
int jsdt_sr_init_child(int rank)
{
memset(&_sr_J_env, 0, sizeof(sr_jsdt_env_t));
_sr_J_env.J = duk_create_heap_default();
if(_sr_J_env.J == NULL) {
LM_ERR("cannot create JS context (exec)\n");
return -1;
}
jsdt_sr_kemi_register_libs(_sr_J_env.J);
if(_sr_jsdt_load_file.s != NULL && _sr_jsdt_load_file.len > 0) {
_sr_J_env.JJ = duk_create_heap_default();
if(_sr_J_env.JJ == NULL) {
LM_ERR("cannot create load JS context (load)\n");
return -1;
}
if(_sr_jsdt_mode == 1) {
duk_push_object(_sr_J_env.JJ);
duk_push_c_function(_sr_J_env.JJ, cb_resolve_module, DUK_VARARGS);
duk_put_prop_string(_sr_J_env.JJ, -2, "resolve");
duk_push_c_function(_sr_J_env.JJ, cb_load_module, DUK_VARARGS);
duk_put_prop_string(_sr_J_env.JJ, -2, "load");
duk_module_node_init(_sr_J_env.JJ);
}
jsdt_sr_kemi_register_libs(_sr_J_env.JJ);
LM_DBG("loading js script file: %.*s\n", _sr_jsdt_load_file.len,
_sr_jsdt_load_file.s);
if(jsdt_kemi_load_script() < 0) {
return -1;
}
}
LM_DBG("JS initialized!\n");
return 0;
}
/**
*
*/
void jsdt_sr_destroy(void)
{
if(_sr_J_env.J != NULL) {
duk_destroy_heap(_sr_J_env.J);
_sr_J_env.J = NULL;
}
if(_sr_J_env.JJ != NULL) {
duk_destroy_heap(_sr_J_env.JJ);
_sr_J_env.JJ = NULL;
}
memset(&_sr_J_env, 0, sizeof(sr_jsdt_env_t));
}
/**
*
*/
int jsdt_kemi_reload_script(void)
{
int v;
if(_sr_jsdt_load_file.s == NULL && _sr_jsdt_load_file.len <= 0) {
LM_WARN("script file path not provided\n");
return -1;
}
if(_sr_jsdt_reload_version == NULL) {
LM_WARN("reload not enabled\n");
return -1;
}
if(_sr_J_env.JJ == NULL) {
LM_ERR("load JS context not created\n");
return -1;
}
v = *_sr_jsdt_reload_version;
if(v == _sr_jsdt_local_version) {
/* same version */
return 0;
}
LM_DBG("reloading js script file: %.*s (%d => %d)\n",
_sr_jsdt_load_file.len, _sr_jsdt_load_file.s,
_sr_jsdt_local_version, v);
jsdt_kemi_load_script();
_sr_jsdt_local_version = v;
return 0;
}
/**
*
*/
int app_jsdt_run_ex(
sip_msg_t *msg, char *func, char *p1, char *p2, char *p3, int emode)
{
int n;
int ret;
str txt;
sip_msg_t *bmsg;
duk_idx_t jtop;
if(_sr_J_env.JJ == NULL) {
LM_ERR("js loading state not initialized (call: %s)\n", func);
return -1;
}
/* check the script version loaded */
jsdt_kemi_reload_script();
LM_DBG("executing js function: [[%s]]\n", func);
jtop = duk_get_top(_sr_J_env.JJ);
LM_DBG("js top index is: %d\n", (int)jtop);
duk_get_global_string(_sr_J_env.JJ, func);
if(!duk_is_function(_sr_J_env.JJ, -1)) {
if(emode) {
LM_ERR("no such function [%s] in js scripts\n", func);
LM_ERR("top stack type [%d]\n", duk_get_type(_sr_J_env.JJ, -1));
txt.s = (char *)duk_to_string(_sr_J_env.JJ, -1);
LM_ERR("error from JS: %s\n", (txt.s) ? txt.s : "unknown");
duk_set_top(_sr_J_env.JJ, jtop);
return -1;
} else {
duk_set_top(_sr_J_env.JJ, jtop);
return 1;
}
}
n = 0;
if(p1 != NULL) {
duk_push_string(_sr_J_env.JJ, p1);
n++;
if(p2 != NULL) {
duk_push_string(_sr_J_env.JJ, p2);
n++;
if(p3 != NULL) {
duk_push_string(_sr_J_env.JJ, p3);
n++;
}
}
}
bmsg = _sr_J_env.msg;
_sr_J_env.msg = msg;
ret = duk_pcall(_sr_J_env.JJ, n);
_sr_J_env.msg = bmsg;
if(ret != DUK_EXEC_SUCCESS) {
n = 0;
if(duk_is_error(_sr_J_env.JJ, -1)) {
duk_get_prop_string(_sr_J_env.JJ, -1, "stack");
LM_ERR("error stack from js: %s\n",
duk_safe_to_string(_sr_J_env.JJ, -1));
duk_pop(_sr_J_env.JJ);
} else {
txt.s = (char *)duk_safe_to_string(_sr_J_env.JJ, -1);
if(txt.s != NULL) {
for(n = 0; txt.s[n] != '\0'
&& _sr_kemi_jsdt_exit_string.s[n] != '\0';
n++) {
if(txt.s[n] != _sr_kemi_jsdt_exit_string.s[n])
break;
}
if(txt.s[n] != '\0' || _sr_kemi_jsdt_exit_string.s[n] != '\0') {
LM_ERR("error from js: %s\n", txt.s);
n = 0;
} else {
LM_DBG("ksr error call from js: %s\n", txt.s);
n = 1;
}
} else {
LM_ERR("error from js: unknown\n");
}
}
if(n == 1) {
duk_set_top(_sr_J_env.JJ, jtop);
return 1;
} else {
LM_ERR("error executing: %s (err: %d)\n", func, ret);
duk_set_top(_sr_J_env.JJ, jtop);
return -1;
}
}
duk_set_top(_sr_J_env.JJ, jtop);
return 1;
}
/**
*
*/
int app_jsdt_run(sip_msg_t *msg, char *func, char *p1, char *p2, char *p3)
{
return app_jsdt_run_ex(msg, func, p1, p2, p3, 1);
}
/**
*
*/
int app_jsdt_runstring(sip_msg_t *msg, char *script)
{
int ret;
sip_msg_t *bmsg;
if(_sr_J_env.JJ == NULL) {
LM_ERR("js loading state not initialized (call: %s)\n", script);
return -1;
}
jsdt_kemi_reload_script();
LM_DBG("running js string: [[%s]]\n", script);
LM_DBG("js top index is: %d\n", duk_get_top(_sr_J_env.JJ));
bmsg = _sr_J_env.msg;
_sr_J_env.msg = msg;
duk_push_string(_sr_J_env.JJ, script);
ret = duk_peval(_sr_J_env.JJ);
if(ret != 0) {
LM_ERR("JS failed running: %s\n", duk_safe_to_string(_sr_J_env.JJ, -1));
}
duk_pop(_sr_J_env.JJ); /* ignore result */
_sr_J_env.msg = bmsg;
return (ret == 0) ? 1 : -1;
}
/**
*
*/
int app_jsdt_dostring(sip_msg_t *msg, char *script)
{
int ret;
sip_msg_t *bmsg;
LM_DBG("executing js string: [[%s]]\n", script);
LM_DBG("JS top index is: %d\n", duk_get_top(_sr_J_env.J));
bmsg = _sr_J_env.msg;
_sr_J_env.msg = msg;
duk_push_string(_sr_J_env.J, script);
ret = duk_peval(_sr_J_env.J);
if(ret != 0) {
LM_ERR("JS failed running: %s\n", duk_safe_to_string(_sr_J_env.J, -1));
}
duk_pop(_sr_J_env.J); /* ignore result */
_sr_J_env.msg = bmsg;
return (ret == 0) ? 1 : -1;
}
/**
*
*/
int app_jsdt_dofile(sip_msg_t *msg, char *script)
{
int ret;
sip_msg_t *bmsg;
LM_DBG("executing js file: [[%s]]\n", script);
LM_DBG("JS top index is: %d\n", duk_get_top(_sr_J_env.J));
bmsg = _sr_J_env.msg;
_sr_J_env.msg = msg;
if(jsdt_load_file(_sr_J_env.J, script) < 0) {
LM_ERR("failed to load js script file: %s\n", script);
return -1;
}
ret = duk_peval(_sr_J_env.J);
if(ret != 0) {
LM_ERR("JS failed running: %s\n", duk_safe_to_string(_sr_J_env.J, -1));
}
duk_pop(_sr_J_env.J); /* ignore result */
_sr_J_env.msg = bmsg;
return (ret == 0) ? 1 : -1;
}
/**
*
*/
int sr_kemi_jsdt_exec_func_ex(duk_context *J, sr_kemi_t *ket)
{
int i;
int argc;
int ret;
sr_kemi_xval_t *xret;
str *fname;
str *mname;
sr_kemi_xval_t vps[SR_KEMI_PARAMS_MAX];
sr_jsdt_env_t *env_J;
env_J = jsdt_sr_env_get();
if(env_J == NULL || env_J->msg == NULL || ket == NULL) {
LM_ERR("invalid JS environment attributes or parameters\n");
return app_jsdt_return_false(J);
}
fname = &ket->fname;
mname = &ket->mname;
argc = duk_get_top(J);
if(argc == 0 && ket->ptypes[0] == SR_KEMIP_NONE) {
if(ket->rtype == SR_KEMIP_XVAL) {
xret = ((sr_kemi_xfm_f)(ket->func))(env_J->msg);
return sr_kemi_jsdt_return_xval(J, ket, xret);
} else {
ret = ((sr_kemi_fm_f)(ket->func))(env_J->msg);
return sr_kemi_jsdt_return_int(J, ket, ret);
}
}
if(argc == 0 && ket->ptypes[0] != SR_KEMIP_NONE) {
LM_ERR("invalid number of parameters for: %.*s.%.*s\n", mname->len,
mname->s, fname->len, fname->s);
return app_jsdt_return_false(J);
}
if(argc > SR_KEMI_PARAMS_MAX) {
LM_ERR("too many parameters for: %.*s.%.*s\n", mname->len, mname->s,
fname->len, fname->s);
return app_jsdt_return_false(J);
}
memset(vps, 0, SR_KEMI_PARAMS_MAX * sizeof(sr_kemi_xval_t));
for(i = 0; i < SR_KEMI_PARAMS_MAX; i++) {
if(ket->ptypes[i] == SR_KEMIP_NONE) {
break;
} else if(ket->ptypes[i] == SR_KEMIP_STR) {
vps[i].vtype = SR_KEMIP_STR;
vps[i].v.s.s = (char *)duk_to_string(J, i);
vps[i].v.s.len = strlen(vps[i].v.s.s);
LM_DBG("param[%d] for: %.*s is str: %.*s\n", i, fname->len,
fname->s, vps[i].v.s.len, vps[i].v.s.s);
} else if(ket->ptypes[i] == SR_KEMIP_INT) {
vps[i].vtype = SR_KEMIP_INT;
vps[i].v.n = duk_to_int(J, i);
LM_DBG("param[%d] for: %.*s is int: %d\n", i, fname->len, fname->s,
vps[i].v.n);
} else if(ket->ptypes[i] == SR_KEMIP_LONG) {
vps[i].vtype = SR_KEMIP_LONG;
vps[i].v.l = (long)duk_to_number(J, i);
LM_DBG("param[%d] for: %.*s is long int: %ld\n", i, fname->len,
fname->s, vps[i].v.l);
} else {
LM_ERR("unknown parameter type %d (%d)\n", ket->ptypes[i], i);
return app_jsdt_return_false(J);
}
}
xret = sr_kemi_exec_func(ket, env_J->msg, i, vps);
return sr_kemi_jsdt_return_xval(J, ket, xret);
}
/**
*
*/
int sr_kemi_jsdt_exec_func(duk_context *J, int eidx)
{
sr_kemi_t *ket;
int ret;
struct timeval tvb = {0}, tve = {0};
struct timezone tz;
unsigned int tdiff;
int sline = 0;
ket = sr_kemi_jsdt_export_get(eidx);
if(unlikely(cfg_get(core, core_cfg, latency_limit_action) > 0)
&& is_printable(cfg_get(core, core_cfg, latency_log))) {
gettimeofday(&tvb, &tz);
}
ret = sr_kemi_jsdt_exec_func_ex(J, ket);
if(unlikely(cfg_get(core, core_cfg, latency_limit_action) > 0)
&& is_printable(cfg_get(core, core_cfg, latency_log))) {
gettimeofday(&tve, &tz);
tdiff = (tve.tv_sec - tvb.tv_sec) * 1000000
+ (tve.tv_usec - tvb.tv_usec);
if(tdiff >= cfg_get(core, core_cfg, latency_limit_action)) {
duk_inspect_callstack_entry(J, -1);
duk_get_prop_string(J, -1, "lineNumber");
sline = (int)duk_to_int(J, -1);
duk_pop_2(J);
LOG(cfg_get(core, core_cfg, latency_log),
"alert - action KSR.%s%s%s(...)"
" took too long [%u us] (line: %d)\n",
(ket->mname.len > 0) ? ket->mname.s : "",
(ket->mname.len > 0) ? "." : "", ket->fname.s, tdiff,
sline);
}
}
return ret;
}
/**
*
*/
duk_function_list_entry *_sr_J_KSRMethods = NULL;
#define SR_JSDT_KSR_MODULES_SIZE 256
#define SR_JSDT_KSR_METHODS_SIZE \
(SR_KEMI_JSDT_EXPORT_SIZE + SR_JSDT_KSR_MODULES_SIZE)
/**
*
*/
duk_ret_t dukopen_KSR(duk_context *J)
{
duk_function_list_entry *_sr_crt_J_KSRMethods = NULL;
sr_kemi_module_t *emods = NULL;
int emods_size = 0;
int i;
int k;
int n;
char mname[128];
char malias[256];
_sr_J_KSRMethods =
malloc(SR_JSDT_KSR_METHODS_SIZE * sizeof(duk_function_list_entry));
if(_sr_J_KSRMethods == NULL) {
SYS_MEM_ERROR;
return 0;
}
memset(_sr_J_KSRMethods, 0,
SR_JSDT_KSR_METHODS_SIZE * sizeof(duk_function_list_entry));
emods_size = sr_kemi_modules_size_get();
emods = sr_kemi_modules_get();
n = 0;
_sr_crt_J_KSRMethods = _sr_J_KSRMethods;
if(emods_size == 0 || emods[0].kexp == NULL) {
LM_ERR("no kemi exports registered\n");
return 0;
}
for(i = 0; emods[0].kexp[i].func != NULL; i++) {
LM_DBG("exporting KSR.%s(...)\n", emods[0].kexp[i].fname.s);
_sr_crt_J_KSRMethods[i].key = emods[0].kexp[i].fname.s;
_sr_crt_J_KSRMethods[i].value =
sr_kemi_jsdt_export_associate(&emods[0].kexp[i]);
if(_sr_crt_J_KSRMethods[i].value == NULL) {
LM_ERR("failed to associate kemi function with js export\n");
free(_sr_J_KSRMethods);
_sr_J_KSRMethods = NULL;
return 0;
}
_sr_crt_J_KSRMethods[i].nargs = DUK_VARARGS;
n++;
}
duk_push_global_object(J);
duk_push_object(J); /* -> [ ... global obj ] */
duk_put_function_list(J, -1, _sr_crt_J_KSRMethods);
duk_put_prop_string(J, -2, "KSR"); /* -> [ ... global ] */
duk_pop(J);
duk_push_global_object(J);
duk_push_object(J); /* -> [ ... global obj ] */
duk_put_function_list(J, -1, _sr_kemi_x_J_Map);
duk_put_prop_string(J, -2, "KSR_x"); /* -> [ ... global ] */
duk_pop(J);
duk_eval_string_noresult(J, "KSR.x = KSR_x;");
/* registered kemi modules */
if(emods_size > 1) {
for(k = 1; k < emods_size; k++) {
n++;
_sr_crt_J_KSRMethods = _sr_J_KSRMethods + n;
snprintf(mname, 128, "KSR_%s", emods[k].kexp[0].mname.s);
for(i = 0; emods[k].kexp[i].func != NULL; i++) {
LM_DBG("exporting %s.%s(...)\n", mname,
emods[k].kexp[i].fname.s);
_sr_crt_J_KSRMethods[i].key = emods[k].kexp[i].fname.s;
_sr_crt_J_KSRMethods[i].value =
sr_kemi_jsdt_export_associate(&emods[k].kexp[i]);
if(_sr_crt_J_KSRMethods[i].value == NULL) {
LM_ERR("failed to associate kemi function with func "
"export\n");
free(_sr_J_KSRMethods);
_sr_J_KSRMethods = NULL;
return 0;
}
_sr_crt_J_KSRMethods[i].nargs = DUK_VARARGS;
n++;
}
duk_push_global_object(J);
duk_push_object(J); /* -> [ ... global obj ] */
duk_put_function_list(J, -1, _sr_crt_J_KSRMethods);
duk_put_prop_string(J, -2, mname); /* -> [ ... global ] */
duk_pop(J);
snprintf(malias, 256, "KSR.%s = KSR_%s;", emods[k].kexp[0].mname.s,
emods[k].kexp[0].mname.s);
duk_eval_string_noresult(J, malias);
LM_DBG("initializing kemi sub-module: %s (%s)\n", mname,
emods[k].kexp[0].mname.s);
}
}
LM_DBG("module 'KSR' has been initialized\n");
return 1;
}
/**
*
*/
void jsdt_sr_kemi_register_libs(duk_context *J)
{
int ret;
duk_push_c_function(J, dukopen_KSR, 0 /*nargs*/);
ret = duk_pcall(J, 0);
if(ret != DUK_EXEC_SUCCESS) {
LM_ERR("failed to initialize KSR module\n");
}
}
static const char *app_jsdt_rpc_reload_doc[2] = {"Reload javascript file", 0};
static void app_jsdt_rpc_reload(rpc_t *rpc, void *ctx)
{
int v;
void *vh;
if(_sr_jsdt_load_file.s == NULL && _sr_jsdt_load_file.len <= 0) {
LM_WARN("script file path not provided\n");
rpc->fault(ctx, 500, "No script file");
return;
}
if(_sr_jsdt_reload_version == NULL) {
LM_WARN("reload not enabled\n");
rpc->fault(ctx, 500, "Reload not enabled");
return;
}
v = *_sr_jsdt_reload_version;
LM_INFO("marking for reload js script file: %.*s (%d => %d)\n",
_sr_jsdt_load_file.len, _sr_jsdt_load_file.s,
_sr_jsdt_local_version, v);
*_sr_jsdt_reload_version += 1;
if(rpc->add(ctx, "{", &vh) < 0) {
rpc->fault(ctx, 500, "Server error");
return;
}
rpc->struct_add(vh, "dd", "old", v, "new", *_sr_jsdt_reload_version);
}
static const char *app_jsdt_rpc_api_list_doc[2] = {