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Port to lua is written (#5)

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Lua binding by @avaicode

 - Missing break between table and nil added
 - Fixed many small things int the port to Lua
 - Now it will check if args and env is a true list
 - Rename judge to run(the same as python's binding)
 - Removed a useless argument
This commit is contained in:
Yanghe Sun 2016-10-24 11:19:48 +08:00 committed by 李扬
parent 9e290f6db6
commit 121cb2d089
3 changed files with 270 additions and 0 deletions
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bindings/Lua/LICENSE Normal file
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The MIT License (MIT)
Copyright (c) 2016 Yanghe Sun
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# Makefile for Judger's lua binding
CC = gcc
CFLAGS = -Wall -Werror -O3 -std=c99 -fPIC
LDFLAGS ?= -pthread -lseccomp -fPIC -shared
JUDGER_OBJECTS = child.o killer.o logger.o runner.o rules/c_cpp.o rules/general.o
OBJECTS = $(addprefix ../../src/,${JUDGER_OBJECTS}) judger.o
.PHONY: all test install clean
all: judger.so
judger.so: ${OBJECTS}
${CC} ${OBJECTS} ${LDFLAGS} -o judger.so
install: all
@mkdir -p /usr/local/lib/lua/5.3/
@cp -f judger.so /usr/local/lib/lua/5.3/
clean:
@rm -f ${OBJECTS} judger.so
%.o: %c
${CC} ${CFLAGS} -o $@ -c $<

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bindings/Lua/judger.c Normal file
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/*
Lua Binding:
The MIT License (MIT)
Copyright (c) <2016> <avaicode>
Judger:
The Star And Thank Author License (SATA)
Copyright (c) <Qingdao University Online Judge Dev Team> <info@qduoj.com>
*/
/*
Usage:
In Lua: require "judger"
In C: luaL_requiref(L, "judger", luaopen_judger, 1)
*/
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <lua5.3/lua.h>
#include <lua5.3/lauxlib.h>
#include "../../src/runner.h"
typedef struct ConfItem {
const char* name;
int value;
} ConfItem;
static ConfItem conf_item[] = {
{"VERSION", VERSION},
{"UNLIMITED", UNLIMITED},
{"RESULT_WRONG_ANSWER", WRONG_ANSWER},
{"RESULT_SUCCESS", SUCCESS},
{"RESULT_CPU_TIME_LIMIT_EXCEEDED", CPU_TIME_LIMIT_EXCEEDED},
{"RESULT_REAL_TIME_LIMIT_EXCEEDED", REAL_TIME_LIMIT_EXCEEDED},
{"RESULT_MEMORY_LIMIT_EXCEEDED", MEMORY_LIMIT_EXCEEDED},
{"RESULT_RUNTIME_ERROR", RUNTIME_ERROR},
{"RESULT_SYSTEM_ERROR", SYSTEM_ERROR},
{"ERROR_INVALID_CONFIG", INVALID_CONFIG},
{"ERROR_FORK_FAILED", FORK_FAILED},
{"ERROR_PTHREAD_FAILED", PTHREAD_FAILED},
{"ERROR_WAIT_FAILED", WAIT_FAILED},
{"ERROR_ROOT_REQUIRED", ROOT_REQUIRED},
{"ERROR_LOAD_SECCOMP_FAILED", LOAD_SECCOMP_FAILED},
{"ERROR_SETRLIMIT_FAILED", SETRLIMIT_FAILED},
{"ERROR_DUP2_FAILED", DUP2_FAILED},
{"ERROR_SETUID_FAILED", SETUID_FAILED},
{"ERROR_EXECVE_FAILED", EXECVE_FAILED},
{"ERROR_SPJ_ERROR", SPJ_ERROR}
};
static const int conf_item_size = sizeof(conf_item) / sizeof(ConfItem);
typedef struct ArgMask {
const char* name;
int t; //Should be lua_type
int nil_accept;
} ArgMask;
static ArgMask arg_mask[] = {
{"max_cpu_time", LUA_TNUMBER, 0},
{"max_real_time", LUA_TNUMBER, 0},
{"max_memory", LUA_TNUMBER, 0},
{"max_process_number", LUA_TNUMBER, 0},
{"max_output_size", LUA_TNUMBER, 0},
{"exe_path", LUA_TSTRING, 0},
{"input_path", LUA_TSTRING, 0},
{"output_path", LUA_TSTRING, 0},
{"error_path", LUA_TSTRING, 0},
{"log_path", LUA_TSTRING, 0},
{"seccomp_rule_name", LUA_TSTRING, 1},
{"args", LUA_TTABLE, 0},
{"env", LUA_TTABLE, 0},
{"uid", LUA_TNUMBER, 0},
{"gid", LUA_TNUMBER, 0}
};
static const int arg_mask_size = sizeof(arg_mask) / sizeof(ArgMask);
static int global_getconfig(lua_State* L);
static int global_judge(lua_State* L);
static const struct luaL_Reg judger[] = {
{"getconfig", global_getconfig},
{"run", global_judge},
{NULL, NULL}
};
static char* _strdup(const char* s) {
char* t = NULL;
if (s && (t = (char*)malloc(strlen(s) + 1)))
strcpy(t, s);
return t;
}
static int global_getconfig(lua_State* L) {
int i = 0;
lua_createtable(L, 0, conf_item_size);
for (; i < conf_item_size; ++i) {
lua_pushstring(L, conf_item[i].name);
lua_pushnumber(L, conf_item[i].value);
lua_rawset(L, -3);
}
assert(lua_gettop(L) == 1 && lua_type(L, -1) == LUA_TTABLE); //One table left
return 1;
}
static void destory_config(struct config* config) {
int i = 0;
free(config->exe_path);
free(config->input_path);
free(config->output_path);
free(config->error_path);
free(config->log_path);
free(config->seccomp_rule_name);
for (; i < 256; ++i) {
free(config->args[i]);
free(config->env[i]);
}
}
static int lua_checkstringtable(lua_State* L, char** dst, int max_size, int* dst_size) {
int table_index = lua_gettop(L);
int table_size = 0;
lua_pushnil(L);
while (0 != lua_next(L, table_index)) {
if (lua_type(L, -1) != LUA_TSTRING)
return 0;
if (lua_type(L, -2) != LUA_TNUMBER)
return 0;
if (table_size == max_size)
return 0;
dst[table_size] = _strdup(lua_tostring(L, -1));
table_size++;
lua_pop(L, 1);
}
if (dst_size != NULL)
*dst_size = table_size;
return 1;
}
static int global_judge(lua_State* L) {
int i = 0, table_size = 0;
struct config config;
struct result result;
void* arg_refs[arg_mask_size];
arg_refs[0] = &config.max_cpu_time;
arg_refs[1] = &config.max_real_time;
arg_refs[2] = &config.max_memory;
arg_refs[3] = &config.max_process_number;
arg_refs[4] = &config.max_output_size;
arg_refs[5] = &config.exe_path;
arg_refs[6] = &config.input_path;
arg_refs[7] = &config.output_path;
arg_refs[8] = &config.error_path;
arg_refs[9] = &config.log_path;
arg_refs[10] = &config.seccomp_rule_name;
arg_refs[11] = &config.args;
arg_refs[12] = &config.env;
arg_refs[13] = &config.uid;
arg_refs[14] = &config.gid;
memset(&config, 0, sizeof(config));
luaL_checktype(L, 1, LUA_TTABLE);
for (; i < arg_mask_size; ++i) {
lua_pushstring(L, arg_mask[i].name);
lua_gettable(L, -2);
if (lua_type(L, -1) != arg_mask[i].t && !(arg_mask[i].nil_accept && lua_type(L, -1) == LUA_TNIL))
return destory_config(&config), luaL_error(L, "bad argument %s", arg_mask[i].name);
switch (lua_type(L, -1)) {
case LUA_TNUMBER:
*(int*)arg_refs[i] = lua_tointeger(L, -1);
break;
case LUA_TSTRING:
*(char**)arg_refs[i] = _strdup(lua_tostring(L, -1));
break;
case LUA_TTABLE:
if (lua_checkstringtable(L, (char**)arg_refs[i], 256 - 1, &table_size) == 0) {
destory_config(&config);
return luaL_error(L, "bad argument %s (item must be a string)", arg_mask[i].name);
}
*((char**)arg_refs[i] + table_size) = NULL;
break;
case LUA_TNIL:
*(char**)arg_refs[i] = NULL;
break;
}
lua_pop(L, 1);
}
run(&config, &result);
lua_newtable(L);
lua_pushstring(L, "cpu_time"); lua_pushnumber(L, result.cpu_time); lua_rawset(L, -3);
lua_pushstring(L, "real_time"); lua_pushnumber(L, result.real_time); lua_rawset(L, -3);
lua_pushstring(L, "memory"); lua_pushnumber(L, result.memory); lua_rawset(L, -3);
lua_pushstring(L, "signal"); lua_pushnumber(L, result.signal); lua_rawset(L, -3);
lua_pushstring(L, "exit_code"); lua_pushnumber(L, result.exit_code); lua_rawset(L, -3);
lua_pushstring(L, "error"); lua_pushnumber(L, result.error); lua_rawset(L, -3);
lua_pushstring(L, "result"); lua_pushnumber(L, result.result); lua_rawset(L, -3);
assert(lua_gettop(L) == 2);
destory_config(&config);
return 1;
}
int luaopen_judger(lua_State* L) {
luaL_newlib(L, judger);
return 1;
}