- /*
- * Copyright 2024 Vsevolod Stakhov
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- #include "lua_common.h"
- #include "libserver/maps/map.h"
- #include "libserver/maps/map_private.h"
-
- /***
- * @module rspamd_logger
- * Rspamd logger module is used to log messages from LUA API to the main rspamd logger.
- * It supports legacy and modern interfaces allowing highly customized an convenient log functions.
- * Here is an example of logger usage:
- * @example
- local rspamd_logger = require "rspamd_logger"
-
- local a = 'string'
- local b = 1.5
- local c = 1
- local d = {
- 'aa',
- 1,
- 'bb'
- }
- local e = {
- key = 'value',
- key2 = 1.0
- }
-
- -- New extended interface
- -- %<number> means numeric arguments and %s means the next argument
- -- for example %1, %2, %s: %s would mean the third argument
-
- rspamd_logger.info('a=%1, b=%2, c=%3, d=%4, e=%s', a, b, c, d, e)
- -- Output: a=string, b=1.50000, c=1, d={[1] = aa, [2] = 1, [3] = bb} e={[key]=value, [key2]=1.0}
-
- -- Create string using logger API
- local str = rspamd_logger.slog('a=%1, b=%2, c=%3, d=%4, e=%5', a, b, c, d, e)
-
- print(str)
- -- Output: a=string, b=1.50000, c=1, d={[1] = aa, [2] = 1, [3] = bb} e={[key]=value, [key2]=1.0}
- */
-
- /* Logger methods */
- /***
- * @function logger.err(msg)
- * Log message as an error
- * @param {string} msg string to be logged
- */
- LUA_FUNCTION_DEF(logger, err);
- /***
- * @function logger.warn(msg)
- * Log message as a warning
- * @param {string} msg string to be logged
- */
- LUA_FUNCTION_DEF(logger, warn);
- /***
- * @function logger.info(msg)
- * Log message as an informational message
- * @param {string} msg string to be logged
- */
- LUA_FUNCTION_DEF(logger, info);
- /***
- * @function logger.message(msg)
- * Log message as an notice message
- * @param {string} msg string to be logged
- */
- LUA_FUNCTION_DEF(logger, message);
- /***
- * @function logger.debug(msg)
- * Log message as a debug message
- * @param {string} msg string to be logged
- */
- LUA_FUNCTION_DEF(logger, debug);
- /***
- * @function logger.errx(fmt[, args)
- * Extended interface to make an error log message
- * @param {string} fmt format string, arguments are encoded as %<number>
- * @param {any} args list of arguments to be replaced in %<number> positions
- */
- LUA_FUNCTION_DEF(logger, errx);
- /***
- * @function logger.warn(fmt[, args)
- * Extended interface to make a warning log message
- * @param {string} fmt format string, arguments are encoded as %<number>
- * @param {any} args list of arguments to be replaced in %<number> positions
- */
- LUA_FUNCTION_DEF(logger, warnx);
- /***
- * @function logger.infox(fmt[, args)
- * Extended interface to make an informational log message
- * @param {string} fmt format string, arguments are encoded as %<number>
- * @param {any} args list of arguments to be replaced in %<number> positions
- */
- LUA_FUNCTION_DEF(logger, infox);
- /***
- * @function logger.infox(fmt[, args)
- * Extended interface to make an informational log message
- * @param {string} fmt format string, arguments are encoded as %<number>
- * @param {any} args list of arguments to be replaced in %<number> positions
- */
- LUA_FUNCTION_DEF(logger, messagex);
- /***
- * @function logger.debugx(fmt[, args)
- * Extended interface to make a debug log message
- * @param {string} fmt format string, arguments are encoded as %<number>
- * @param {any} args list of arguments to be replaced in %<number> positions
- */
- LUA_FUNCTION_DEF(logger, debugx);
-
- /***
- * @function logger.debugm(module, id, fmt[, args)
- * Extended interface to make a debug log message
- * @param {string} module debug module
- * @param {task|cfg|pool|string} id id to log
- * @param {string} fmt format string, arguments are encoded as %<number>
- * @param {any} args list of arguments to be replaced in %<number> positions
- */
- LUA_FUNCTION_DEF(logger, debugm);
- /***
- * @function logger.slog(fmt[, args)
- * Create string replacing percent params with corresponding arguments
- * @param {string} fmt format string, arguments are encoded as %<number>
- * @param {any} args list of arguments to be replaced in %<number> positions
- * @return {string} string with percent parameters substituted
- */
- LUA_FUNCTION_DEF(logger, slog);
-
- /***
- * @function logger.logx(level, module, id, fmt[, args)
- * Extended interface to make a generic log message on any level
- * @param {number} log level as a number (see GLogLevelFlags enum for values)
- * @param {task|cfg|pool|string} id id to log
- * @param {string} fmt format string, arguments are encoded as %<number>
- * @param {any} args list of arguments to be replaced in %<number> positions
- */
- LUA_FUNCTION_DEF(logger, logx);
-
- /***
- * @function logger.log_level()
- * Returns log level for a logger
- * @return {string} current log level
- */
- LUA_FUNCTION_DEF(logger, log_level);
-
- static const struct luaL_reg loggerlib_f[] = {
- LUA_INTERFACE_DEF(logger, err),
- LUA_INTERFACE_DEF(logger, warn),
- LUA_INTERFACE_DEF(logger, message),
- {"msg", lua_logger_message},
- LUA_INTERFACE_DEF(logger, info),
- LUA_INTERFACE_DEF(logger, debug),
- LUA_INTERFACE_DEF(logger, errx),
- LUA_INTERFACE_DEF(logger, warnx),
- LUA_INTERFACE_DEF(logger, infox),
- LUA_INTERFACE_DEF(logger, messagex),
- {"msgx", lua_logger_messagex},
- LUA_INTERFACE_DEF(logger, debugx),
- LUA_INTERFACE_DEF(logger, debugm),
- LUA_INTERFACE_DEF(logger, slog),
- LUA_INTERFACE_DEF(logger, logx),
- LUA_INTERFACE_DEF(logger, log_level),
- {"__tostring", rspamd_lua_class_tostring},
- {NULL, NULL}};
-
- static void
- lua_common_log_line(GLogLevelFlags level,
- lua_State *L,
- const char *msg,
- const char *uid,
- const char *module,
- int stack_level)
- {
- lua_Debug d;
- char func_buf[128], *p;
-
- if (lua_getstack(L, stack_level, &d) == 1) {
- (void) lua_getinfo(L, "Sl", &d);
- if ((p = strrchr(d.short_src, '/')) == NULL) {
- p = d.short_src;
- }
- else {
- p++;
- }
-
- if (strlen(p) > 30) {
- rspamd_snprintf(func_buf, sizeof(func_buf), "%27s...:%d", p,
- d.currentline);
- }
- else {
- rspamd_snprintf(func_buf, sizeof(func_buf), "%s:%d", p,
- d.currentline);
- }
-
- rspamd_common_log_function(NULL,
- level,
- module,
- uid,
- func_buf,
- "%s",
- msg);
- }
- else {
- rspamd_common_log_function(NULL,
- level,
- module,
- uid,
- G_STRFUNC,
- "%s",
- msg);
- }
- }
-
- /*** Logger interface ***/
- static int
- lua_logger_err(lua_State *L)
- {
- return lua_logger_errx(L);
- }
-
- static int
- lua_logger_warn(lua_State *L)
- {
- return lua_logger_warnx(L);
- }
-
- static int
- lua_logger_info(lua_State *L)
- {
- return lua_logger_infox(L);
- }
-
- static int
- lua_logger_message(lua_State *L)
- {
- return lua_logger_messagex(L);
- }
-
- static int
- lua_logger_debug(lua_State *L)
- {
- return lua_logger_debugx(L);
- }
-
- static inline bool
- lua_logger_char_safe(int t, unsigned int esc_type)
- {
- if (t & 0x80) {
- if (esc_type & LUA_ESCAPE_8BIT) {
- return false;
- }
-
- return true;
- }
-
- if (esc_type & LUA_ESCAPE_UNPRINTABLE) {
- if (!g_ascii_isprint(t) && !g_ascii_isspace(t)) {
- return false;
- }
- }
-
- if (esc_type & LUA_ESCAPE_NEWLINES) {
- if (t == '\r' || t == '\n') {
- return false;
- }
- }
-
- return true;
- }
-
- static gsize
- lua_logger_out_str(lua_State *L, int pos,
- char *outbuf, gsize len,
- struct lua_logger_trace *trace,
- enum lua_logger_escape_type esc_type)
- {
- gsize slen, flen;
- const char *str = lua_tolstring(L, pos, &slen);
- static const char hexdigests[16] = "0123456789abcdef";
- gsize r = 0, s;
-
- if (str) {
- gboolean normal = TRUE;
- flen = MIN(slen, len - 1);
-
- for (r = 0; r < flen; r++) {
- if (!lua_logger_char_safe(str[r], esc_type)) {
- normal = FALSE;
- break;
- }
- }
-
- if (normal) {
- r = rspamd_strlcpy(outbuf, str, flen + 1);
- }
- else {
- /* Need to escape non-printed characters */
- r = 0;
- s = 0;
-
- while (slen > 0 && len > 1) {
- if (!lua_logger_char_safe(str[s], esc_type)) {
- if (len >= 3) {
- outbuf[r++] = '\\';
- outbuf[r++] = hexdigests[((str[s] >> 4) & 0xF)];
- outbuf[r++] = hexdigests[((str[s]) & 0xF)];
-
- len -= 2;
- }
- else {
- outbuf[r++] = '?';
- }
- }
- else {
- outbuf[r++] = str[s];
- }
-
- s++;
- slen--;
- len--;
- }
-
- outbuf[r] = '\0';
- }
- }
-
- return r;
- }
-
- static gsize
- lua_logger_out_num(lua_State *L, int pos, char *outbuf, gsize len,
- struct lua_logger_trace *trace)
- {
- double num = lua_tonumber(L, pos);
- glong inum;
- gsize r = 0;
-
- if ((double) (glong) num == num) {
- inum = num;
- r = rspamd_snprintf(outbuf, len + 1, "%l", inum);
- }
- else {
- r = rspamd_snprintf(outbuf, len + 1, "%f", num);
- }
-
- return r;
- }
-
- static gsize
- lua_logger_out_boolean(lua_State *L, int pos, char *outbuf, gsize len,
- struct lua_logger_trace *trace)
- {
- gboolean val = lua_toboolean(L, pos);
- gsize r = 0;
-
- r = rspamd_strlcpy(outbuf, val ? "true" : "false", len + 1);
-
- return r;
- }
-
- static gsize
- lua_logger_out_userdata(lua_State *L, int pos, char *outbuf, gsize len,
- struct lua_logger_trace *trace)
- {
- int r = 0, top;
- const char *str = NULL;
- gboolean converted_to_str = FALSE;
-
- top = lua_gettop(L);
-
- if (!lua_getmetatable(L, pos)) {
- return 0;
- }
-
- lua_pushstring(L, "__index");
- lua_gettable(L, -2);
-
- if (!lua_istable(L, -1)) {
-
- if (lua_isfunction(L, -1)) {
- /* Functional metatable, try to get __tostring directly */
- lua_pushstring(L, "__tostring");
- lua_gettable(L, -3);
-
- if (lua_isfunction(L, -1)) {
- lua_pushvalue(L, pos);
-
- if (lua_pcall(L, 1, 1, 0) != 0) {
- lua_settop(L, top);
-
- return 0;
- }
-
- str = lua_tostring(L, -1);
-
- if (str) {
- r = rspamd_snprintf(outbuf, len, "%s", str);
- }
-
- lua_settop(L, top);
-
- return r;
- }
- }
- lua_settop(L, top);
-
- return 0;
- }
-
- lua_pushstring(L, "__tostring");
- lua_gettable(L, -2);
-
- if (lua_isfunction(L, -1)) {
- lua_pushvalue(L, pos);
-
- if (lua_pcall(L, 1, 1, 0) != 0) {
- lua_settop(L, top);
-
- return 0;
- }
-
- str = lua_tostring(L, -1);
-
- if (str) {
- converted_to_str = TRUE;
- }
- }
- else {
- lua_pop(L, 1);
- lua_pushstring(L, "class");
- lua_gettable(L, -2);
-
- if (lua_isstring(L, -1)) {
- str = lua_tostring(L, -1);
- converted_to_str = TRUE;
- }
- }
-
- if (converted_to_str) {
- r = rspamd_snprintf(outbuf, len, "%s", str);
- }
- else {
- /* Print raw pointer */
- r = rspamd_snprintf(outbuf, len, "%s(%p)", str, lua_touserdata(L, pos));
- }
-
- lua_settop(L, top);
-
- return r;
- }
-
- #define MOVE_BUF(d, remain, r) \
- (d) += (r); \
- (remain) -= (r); \
- if ((remain) == 0) { \
- lua_settop(L, old_top); \
- break; \
- }
-
- static gsize
- lua_logger_out_table(lua_State *L, int pos, char *outbuf, gsize len,
- struct lua_logger_trace *trace,
- enum lua_logger_escape_type esc_type)
- {
- char *d = outbuf;
- gsize remain = len, r;
- gboolean first = TRUE;
- gconstpointer self = NULL;
- int i, tpos, last_seq = -1, old_top;
-
- if (!lua_istable(L, pos) || remain == 0) {
- return 0;
- }
-
- old_top = lua_gettop(L);
- self = lua_topointer(L, pos);
-
- /* Check if we have seen this pointer */
- for (i = 0; i < TRACE_POINTS; i++) {
- if (trace->traces[i] == self) {
- r = rspamd_snprintf(d, remain + 1, "ref(%p)", self);
-
- d += r;
-
- return (d - outbuf);
- }
- }
-
- trace->traces[trace->cur_level % TRACE_POINTS] = self;
-
- lua_pushvalue(L, pos);
- r = rspamd_snprintf(d, remain + 1, "{");
- remain -= r;
- d += r;
-
- /* Get numeric keys (ipairs) */
- for (i = 1;; i++) {
- lua_rawgeti(L, -1, i);
-
- if (lua_isnil(L, -1)) {
- lua_pop(L, 1);
- break;
- }
-
- last_seq = i;
-
- if (!first) {
- r = rspamd_snprintf(d, remain + 1, ", ");
- MOVE_BUF(d, remain, r);
- }
-
- r = rspamd_snprintf(d, remain + 1, "[%d] = ", i);
- MOVE_BUF(d, remain, r);
- tpos = lua_gettop(L);
-
- if (lua_topointer(L, tpos) == self) {
- r = rspamd_snprintf(d, remain + 1, "__self");
- }
- else {
- r = lua_logger_out_type(L, tpos, d, remain, trace, esc_type);
- }
- MOVE_BUF(d, remain, r);
-
- first = FALSE;
- lua_pop(L, 1);
- }
-
- /* Get string keys (pairs) */
- for (lua_pushnil(L); lua_next(L, -2); lua_pop(L, 1)) {
- /* 'key' is at index -2 and 'value' is at index -1 */
- if (lua_type(L, -2) == LUA_TNUMBER) {
- if (last_seq > 0) {
- lua_pushvalue(L, -2);
-
- if (lua_tonumber(L, -1) <= last_seq + 1) {
- lua_pop(L, 1);
- /* Already seen */
- continue;
- }
-
- lua_pop(L, 1);
- }
- }
-
- if (!first) {
- r = rspamd_snprintf(d, remain + 1, ", ");
- MOVE_BUF(d, remain, r);
- }
-
- /* Preserve key */
- lua_pushvalue(L, -2);
- r = rspamd_snprintf(d, remain + 1, "[%s] = ",
- lua_tostring(L, -1));
- lua_pop(L, 1); /* Remove key */
- MOVE_BUF(d, remain, r);
- tpos = lua_gettop(L);
-
- if (lua_topointer(L, tpos) == self) {
- r = rspamd_snprintf(d, remain + 1, "__self");
- }
- else {
- r = lua_logger_out_type(L, tpos, d, remain, trace, esc_type);
- }
- MOVE_BUF(d, remain, r);
-
- first = FALSE;
- }
-
- lua_settop(L, old_top);
-
- r = rspamd_snprintf(d, remain + 1, "}");
- d += r;
-
- return (d - outbuf);
- }
-
- #undef MOVE_BUF
-
- gsize lua_logger_out_type(lua_State *L, int pos,
- char *outbuf, gsize len,
- struct lua_logger_trace *trace,
- enum lua_logger_escape_type esc_type)
- {
- int type;
- gsize r = 0;
-
- if (len == 0) {
- return 0;
- }
-
- type = lua_type(L, pos);
- trace->cur_level++;
-
- switch (type) {
- case LUA_TNUMBER:
- r = lua_logger_out_num(L, pos, outbuf, len, trace);
- break;
- case LUA_TBOOLEAN:
- r = lua_logger_out_boolean(L, pos, outbuf, len, trace);
- break;
- case LUA_TTABLE:
- r = lua_logger_out_table(L, pos, outbuf, len, trace, esc_type);
- break;
- case LUA_TUSERDATA:
- r = lua_logger_out_userdata(L, pos, outbuf, len, trace);
- break;
- case LUA_TFUNCTION:
- r = rspamd_snprintf(outbuf, len + 1, "function");
- break;
- case LUA_TLIGHTUSERDATA:
- r = rspamd_snprintf(outbuf, len + 1, "0x%p", lua_topointer(L, pos));
- break;
- case LUA_TNIL:
- r = rspamd_snprintf(outbuf, len + 1, "nil");
- break;
- case LUA_TNONE:
- r = rspamd_snprintf(outbuf, len + 1, "no value");
- break;
- default:
- /* Try to push everything as string using tostring magic */
- r = lua_logger_out_str(L, pos, outbuf, len, trace, esc_type);
- break;
- }
-
- trace->cur_level--;
-
- return r;
- }
-
- static const char *
- lua_logger_get_id(lua_State *L, int pos, GError **err)
- {
- const char *uid = NULL, *clsname;
-
- if (lua_getmetatable(L, pos) != 0) {
- uid = "";
- lua_pushstring(L, "__index");
- lua_gettable(L, -2);
-
- lua_pushstring(L, "class");
- lua_gettable(L, -2);
-
- clsname = lua_tostring(L, -1);
-
- if (strcmp(clsname, rspamd_task_classname) == 0) {
- struct rspamd_task *task = lua_check_task(L, pos);
-
- if (task) {
- uid = task->task_pool->tag.uid;
- }
- else {
- g_set_error(err, g_quark_from_static_string("lua_logger"),
- EINVAL, "invalid rspamd{task}");
- }
- }
- else if (strcmp(clsname, rspamd_mempool_classname) == 0) {
- rspamd_mempool_t *pool;
-
- pool = rspamd_lua_check_mempool(L, pos);
-
- if (pool) {
- uid = pool->tag.uid;
- }
- else {
- g_set_error(err, g_quark_from_static_string("lua_logger"),
- EINVAL, "invalid rspamd{mempool}");
- }
- }
- else if (strcmp(clsname, rspamd_config_classname) == 0) {
- struct rspamd_config *cfg;
-
- cfg = lua_check_config(L, pos);
-
- if (cfg) {
- if (cfg->checksum) {
- uid = cfg->checksum;
- }
- }
- else {
- g_set_error(err, g_quark_from_static_string("lua_logger"),
- EINVAL, "invalid rspamd{config}");
- }
- }
- else if (strcmp(clsname, rspamd_map_classname) == 0) {
- struct rspamd_lua_map *map;
-
- map = lua_check_map(L, pos);
-
- if (map) {
- if (map->map) {
- uid = map->map->tag;
- }
- else {
- uid = "embedded";
- }
- }
- else {
- g_set_error(err, g_quark_from_static_string("lua_logger"),
- EINVAL, "invalid rspamd{map}");
- }
- }
- else {
- g_set_error(err, g_quark_from_static_string("lua_logger"),
- EINVAL, "unknown class: %s", clsname);
- }
-
-
- /* Metatable, __index, classname */
- lua_pop(L, 3);
- }
- else {
- g_set_error(err, g_quark_from_static_string("lua_logger"),
- EINVAL, "no metatable found for userdata");
- }
-
- return uid;
- }
-
- static gboolean
- lua_logger_log_format(lua_State *L, int fmt_pos, gboolean is_string,
- char *logbuf, gsize remain)
- {
- char *d;
- const char *s, *c;
- gsize r, cpylen = 0;
- unsigned int arg_num = 0, cur_arg;
- bool num_arg = false;
- struct lua_logger_trace tr;
- enum {
- copy_char = 0,
- got_percent,
- parse_arg_num
- } state = copy_char;
-
- d = logbuf;
- s = lua_tostring(L, fmt_pos);
- c = s;
- cur_arg = fmt_pos;
-
- if (s == NULL) {
- return FALSE;
- }
-
- while (remain > 0 && *s != '\0') {
- switch (state) {
- case copy_char:
- if (*s == '%') {
- state = got_percent;
- s++;
- if (cpylen > 0) {
- memcpy(d, c, cpylen);
- d += cpylen;
- }
- cpylen = 0;
- }
- else {
- s++;
- cpylen++;
- remain--;
- }
- break;
- case got_percent:
- if (g_ascii_isdigit(*s) || *s == 's') {
- state = parse_arg_num;
- c = s;
- }
- else {
- *d++ = *s++;
- c = s;
- state = copy_char;
- }
- break;
- case parse_arg_num:
- if (g_ascii_isdigit(*s)) {
- s++;
- num_arg = true;
- }
- else {
- if (num_arg) {
- arg_num = strtoul(c, NULL, 10);
- arg_num += fmt_pos - 1;
- /* Update the current argument */
- cur_arg = arg_num;
- }
- else {
- /* We have non numeric argument, e.g. %s */
- arg_num = cur_arg++;
- s++;
- }
-
- if (arg_num < 1 || arg_num > (unsigned int) lua_gettop(L) + 1) {
- msg_err("wrong argument number: %ud", arg_num);
-
- return FALSE;
- }
-
- memset(&tr, 0, sizeof(tr));
- r = lua_logger_out_type(L, arg_num + 1, d, remain, &tr,
- is_string ? LUA_ESCAPE_UNPRINTABLE : LUA_ESCAPE_LOG);
- g_assert(r <= remain);
- remain -= r;
- d += r;
- state = copy_char;
- c = s;
- }
- break;
- }
- }
-
- if (state == parse_arg_num) {
- if (num_arg) {
- arg_num = strtoul(c, NULL, 10);
- arg_num += fmt_pos - 1;
- }
- else {
- /* We have non numeric argument, e.g. %s */
- arg_num = cur_arg;
- }
-
- if (arg_num < 1 || arg_num > (unsigned int) lua_gettop(L) + 1) {
- msg_err("wrong argument number: %ud", arg_num);
-
- return FALSE;
- }
-
- memset(&tr, 0, sizeof(tr));
- r = lua_logger_out_type(L, arg_num + 1, d, remain, &tr,
- is_string ? LUA_ESCAPE_UNPRINTABLE : LUA_ESCAPE_LOG);
- g_assert(r <= remain);
- remain -= r;
- d += r;
- }
- else if (state == copy_char) {
- if (cpylen > 0 && remain > 0) {
- memcpy(d, c, cpylen);
- d += cpylen;
- }
- }
-
- *d = '\0';
-
-
- return TRUE;
- }
-
- static int
- lua_logger_do_log(lua_State *L,
- GLogLevelFlags level,
- gboolean is_string,
- int start_pos)
- {
- char logbuf[RSPAMD_LOGBUF_SIZE - 128];
- const char *uid = NULL;
- int fmt_pos = start_pos;
- int ret;
- GError *err = NULL;
-
- if (lua_type(L, start_pos) == LUA_TSTRING) {
- fmt_pos = start_pos;
- }
- else if (lua_type(L, start_pos) == LUA_TUSERDATA) {
- fmt_pos = start_pos + 1;
-
- uid = lua_logger_get_id(L, start_pos, &err);
-
- if (uid == NULL) {
- ret = luaL_error(L, "bad userdata for logging: %s",
- err ? err->message : "unknown error");
-
- if (err) {
- g_error_free(err);
- }
-
- return ret;
- }
- }
- else {
- /* Bad argument type */
- return luaL_error(L, "bad format string type: %s",
- lua_typename(L, lua_type(L, start_pos)));
- }
-
- ret = lua_logger_log_format(L, fmt_pos, is_string,
- logbuf, sizeof(logbuf) - 1);
-
- if (ret) {
- if (is_string) {
- lua_pushstring(L, logbuf);
- return 1;
- }
- else {
- lua_common_log_line(level, L, logbuf, uid, "lua", 1);
- }
- }
- else {
- if (is_string) {
- lua_pushnil(L);
-
- return 1;
- }
- }
-
- return 0;
- }
-
- static int
- lua_logger_errx(lua_State *L)
- {
- LUA_TRACE_POINT;
- return lua_logger_do_log(L, G_LOG_LEVEL_CRITICAL, FALSE, 1);
- }
-
- static int
- lua_logger_warnx(lua_State *L)
- {
- LUA_TRACE_POINT;
- return lua_logger_do_log(L, G_LOG_LEVEL_WARNING, FALSE, 1);
- }
-
- static int
- lua_logger_infox(lua_State *L)
- {
- LUA_TRACE_POINT;
- return lua_logger_do_log(L, G_LOG_LEVEL_INFO, FALSE, 1);
- }
-
- static int
- lua_logger_messagex(lua_State *L)
- {
- LUA_TRACE_POINT;
- return lua_logger_do_log(L, G_LOG_LEVEL_MESSAGE, FALSE, 1);
- }
-
- static int
- lua_logger_debugx(lua_State *L)
- {
- LUA_TRACE_POINT;
- return lua_logger_do_log(L, G_LOG_LEVEL_DEBUG, FALSE, 1);
- }
-
- static int
- lua_logger_logx(lua_State *L)
- {
- LUA_TRACE_POINT;
- GLogLevelFlags flags = lua_tonumber(L, 1);
- const char *modname = lua_tostring(L, 2), *uid = NULL;
- char logbuf[RSPAMD_LOGBUF_SIZE - 128];
- gboolean ret;
- int stack_pos = 1;
-
- if (lua_type(L, 3) == LUA_TSTRING) {
- uid = luaL_checkstring(L, 3);
- }
- else if (lua_type(L, 3) == LUA_TUSERDATA) {
- uid = lua_logger_get_id(L, 3, NULL);
- }
- else {
- uid = "???";
- }
-
- if (uid && modname) {
- if (lua_type(L, 4) == LUA_TSTRING) {
- ret = lua_logger_log_format(L, 4, FALSE, logbuf, sizeof(logbuf) - 1);
- }
- else if (lua_type(L, 4) == LUA_TNUMBER) {
- stack_pos = lua_tonumber(L, 4);
- ret = lua_logger_log_format(L, 5, FALSE, logbuf, sizeof(logbuf) - 1);
- }
- else {
- return luaL_error(L, "invalid argument on pos 4");
- }
-
- if (ret) {
- lua_common_log_line(flags, L, logbuf, uid, modname, stack_pos);
- }
- }
- else {
- return luaL_error(L, "invalid arguments");
- }
-
- return 0;
- }
-
-
- static int
- lua_logger_debugm(lua_State *L)
- {
- LUA_TRACE_POINT;
- char logbuf[RSPAMD_LOGBUF_SIZE - 128];
- const char *uid = NULL, *module = NULL;
- int stack_pos = 1;
- gboolean ret;
-
- module = luaL_checkstring(L, 1);
-
- if (lua_type(L, 2) == LUA_TSTRING) {
- uid = luaL_checkstring(L, 2);
- }
- else {
- uid = lua_logger_get_id(L, 2, NULL);
- }
-
- if (uid && module) {
- if (lua_type(L, 3) == LUA_TSTRING) {
- ret = lua_logger_log_format(L, 3, FALSE, logbuf, sizeof(logbuf) - 1);
- }
- else if (lua_type(L, 3) == LUA_TNUMBER) {
- stack_pos = lua_tonumber(L, 3);
- ret = lua_logger_log_format(L, 4, FALSE, logbuf, sizeof(logbuf) - 1);
- }
- else {
- return luaL_error(L, "invalid argument on pos 3");
- }
-
- if (ret) {
- lua_common_log_line(G_LOG_LEVEL_DEBUG, L, logbuf, uid, module, stack_pos);
- }
- }
- else {
- return luaL_error(L, "invalid arguments");
- }
-
- return 0;
- }
-
-
- static int
- lua_logger_slog(lua_State *L)
- {
- return lua_logger_do_log(L, 0, TRUE, 1);
- }
-
- static int
- lua_logger_log_level(lua_State *L)
- {
- int log_level = rspamd_log_get_log_level(NULL);
-
- lua_pushstring(L, rspamd_get_log_severity_string(log_level));
-
- return 1;
- }
-
- /*** Init functions ***/
-
- static int
- lua_load_logger(lua_State *L)
- {
- lua_newtable(L);
- luaL_register(L, NULL, loggerlib_f);
-
- return 1;
- }
-
- void luaopen_logger(lua_State *L)
- {
- rspamd_lua_add_preload(L, "rspamd_logger", lua_load_logger);
- }
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