#include "cpp_api/s_internal.h"
#include "cpp_api/s_security.h"
#include "lua_api/l_object.h"
+#include "common/c_converter.h"
#include "serverobject.h"
-#include "debug.h"
#include "filesys.h"
-#include "log.h"
#include "mods.h"
#include "porting.h"
#include "util/string.h"
+#include "server.h"
+#ifndef SERVER
+#include "client.h"
+#endif
extern "C" {
#include <stdio.h>
#include <cstdarg>
+#include <sstream>
class ModNameStorer
{
// Store current mod name in registry
lua_pushstring(L, mod_name.c_str());
- lua_setfield(L, LUA_REGISTRYINDEX, SCRIPT_MOD_NAME_FIELD);
+ lua_rawseti(L, LUA_REGISTRYINDEX, CUSTOM_RIDX_CURRENT_MOD_NAME);
}
~ModNameStorer()
{
// Clear current mod name from registry
lua_pushnil(L);
- lua_setfield(L, LUA_REGISTRYINDEX, SCRIPT_MOD_NAME_FIELD);
+ lua_rawseti(L, LUA_REGISTRYINDEX, CUSTOM_RIDX_CURRENT_MOD_NAME);
}
};
ScriptApiBase
*/
-ScriptApiBase::ScriptApiBase()
+ScriptApiBase::ScriptApiBase() :
+ m_luastackmutex(),
+ m_gamedef(NULL)
{
- #ifdef SCRIPTAPI_LOCK_DEBUG
- m_locked = false;
- #endif
+#ifdef SCRIPTAPI_LOCK_DEBUG
+ m_lock_recursion_count = 0;
+#endif
m_luastack = luaL_newstate();
FATAL_ERROR_IF(!m_luastack, "luaL_newstate() failed");
- luaL_openlibs(m_luastack);
+ lua_atpanic(m_luastack, &luaPanic);
- // Add and save an error handler
- lua_pushcfunction(m_luastack, script_error_handler);
- m_errorhandler = lua_gettop(m_luastack);
+ luaL_openlibs(m_luastack);
// Make the ScriptApiBase* accessible to ModApiBase
lua_pushlightuserdata(m_luastack, this);
- lua_setfield(m_luastack, LUA_REGISTRYINDEX, "scriptapi");
+ lua_rawseti(m_luastack, LUA_REGISTRYINDEX, CUSTOM_RIDX_SCRIPTAPI);
+
+ // Add and save an error handler
+ lua_pushcfunction(m_luastack, script_error_handler);
+ lua_rawseti(m_luastack, LUA_REGISTRYINDEX, CUSTOM_RIDX_ERROR_HANDLER);
// If we are using LuaJIT add a C++ wrapper function to catch
// exceptions thrown in Lua -> C++ calls
lua_pushstring(m_luastack, porting::getPlatformName());
lua_setglobal(m_luastack, "PLATFORM");
- m_server = NULL;
+ // m_secure gets set to true inside
+ // ScriptApiSecurity::initializeSecurity(), if neccessary.
+ // Default to false otherwise
+ m_secure = false;
+
m_environment = NULL;
m_guiengine = NULL;
}
lua_close(m_luastack);
}
-bool ScriptApiBase::loadMod(const std::string &script_path,
+int ScriptApiBase::luaPanic(lua_State *L)
+{
+ std::ostringstream oss;
+ oss << "LUA PANIC: unprotected error in call to Lua API ("
+ << lua_tostring(L, -1) << ")";
+ FATAL_ERROR(oss.str().c_str());
+ // NOTREACHED
+ return 0;
+}
+
+void ScriptApiBase::loadMod(const std::string &script_path,
const std::string &mod_name)
{
ModNameStorer mod_name_storer(getStack(), mod_name);
- return loadScript(script_path);
+ loadScript(script_path);
}
-bool ScriptApiBase::loadScript(const std::string &script_path)
+void ScriptApiBase::loadScript(const std::string &script_path)
{
verbosestream << "Loading and running script from " << script_path << std::endl;
lua_State *L = getStack();
+ int error_handler = PUSH_ERROR_HANDLER(L);
+
bool ok;
if (m_secure) {
ok = ScriptApiSecurity::safeLoadFile(L, script_path.c_str());
} else {
ok = !luaL_loadfile(L, script_path.c_str());
}
- ok = ok && !lua_pcall(L, 0, 0, m_errorhandler);
+ ok = ok && !lua_pcall(L, 0, 0, error_handler);
if (!ok) {
- errorstream << "========== ERROR FROM LUA ===========" << std::endl;
- errorstream << "Failed to load and run script from " << std::endl;
- errorstream << script_path << ":" << std::endl;
- errorstream << std::endl;
- errorstream << lua_tostring(L, -1) << std::endl;
- errorstream << std::endl;
- errorstream << "======= END OF ERROR FROM LUA ========" << std::endl;
- lua_pop(L, 1); // Pop error message from stack
- return false;
+ std::string error_msg = lua_tostring(L, -1);
+ lua_pop(L, 2); // Pop error message and error handler
+ throw ModError("Failed to load and run script from " +
+ script_path + ":\n" + error_msg);
}
- return true;
+ lua_pop(L, 1); // Pop error handler
+}
+
+// Push the list of callbacks (a lua table).
+// Then push nargs arguments.
+// Then call this function, which
+// - runs the callbacks
+// - replaces the table and arguments with the return value,
+// computed depending on mode
+// This function must only be called with scriptlock held (i.e. inside of a
+// code block with SCRIPTAPI_PRECHECKHEADER declared)
+void ScriptApiBase::runCallbacksRaw(int nargs,
+ RunCallbacksMode mode, const char *fxn)
+{
+#ifdef SCRIPTAPI_LOCK_DEBUG
+ assert(m_lock_recursion_count > 0);
+#endif
+ lua_State *L = getStack();
+ FATAL_ERROR_IF(lua_gettop(L) < nargs + 1, "Not enough arguments");
+
+ // Insert error handler
+ PUSH_ERROR_HANDLER(L);
+ int error_handler = lua_gettop(L) - nargs - 1;
+ lua_insert(L, error_handler);
+
+ // Insert run_callbacks between error handler and table
+ lua_getglobal(L, "core");
+ lua_getfield(L, -1, "run_callbacks");
+ lua_remove(L, -2);
+ lua_insert(L, error_handler + 1);
+
+ // Insert mode after table
+ lua_pushnumber(L, (int)mode);
+ lua_insert(L, error_handler + 3);
+
+ // Stack now looks like this:
+ // ... <error handler> <run_callbacks> <table> <mode> <arg#1> <arg#2> ... <arg#n>
+
+ int result = lua_pcall(L, nargs + 2, 1, error_handler);
+ if (result != 0)
+ scriptError(result, fxn);
+
+ lua_remove(L, error_handler);
}
void ScriptApiBase::realityCheck()
{
int top = lua_gettop(m_luastack);
- if(top >= 30){
- dstream<<"Stack is over 30:"<<std::endl;
+ if (top >= 30) {
+ dstream << "Stack is over 30:" << std::endl;
stackDump(dstream);
std::string traceback = script_get_backtrace(m_luastack);
throw LuaError("Stack is over 30 (reality check)\n" + traceback);
}
}
-void ScriptApiBase::scriptError()
+void ScriptApiBase::scriptError(int result, const char *fxn)
{
- throw LuaError(lua_tostring(m_luastack, -1));
+ script_error(getStack(), result, m_last_run_mod.c_str(), fxn);
}
void ScriptApiBase::stackDump(std::ostream &o)
{
- int i;
int top = lua_gettop(m_luastack);
- for (i = 1; i <= top; i++) { /* repeat for each level */
+ for (int i = 1; i <= top; i++) { /* repeat for each level */
int t = lua_type(m_luastack, i);
switch (t) {
-
case LUA_TSTRING: /* strings */
- o<<"\""<<lua_tostring(m_luastack, i)<<"\"";
+ o << "\"" << lua_tostring(m_luastack, i) << "\"";
break;
-
case LUA_TBOOLEAN: /* booleans */
- o<<(lua_toboolean(m_luastack, i) ? "true" : "false");
+ o << (lua_toboolean(m_luastack, i) ? "true" : "false");
break;
-
case LUA_TNUMBER: /* numbers */ {
char buf[10];
snprintf(buf, 10, "%g", lua_tonumber(m_luastack, i));
- o<<buf;
- break; }
-
+ o << buf;
+ break;
+ }
default: /* other values */
- o<<lua_typename(m_luastack, t);
+ o << lua_typename(m_luastack, t);
break;
-
}
- o<<" ";
+ o << " ";
}
- o<<std::endl;
+ o << std::endl;
+}
+
+void ScriptApiBase::setOriginDirect(const char *origin)
+{
+ m_last_run_mod = origin ? origin : "??";
+}
+
+void ScriptApiBase::setOriginFromTableRaw(int index, const char *fxn)
+{
+#ifdef SCRIPTAPI_DEBUG
+ lua_State *L = getStack();
+
+ m_last_run_mod = lua_istable(L, index) ?
+ getstringfield_default(L, index, "mod_origin", "") : "";
+ //printf(">>>> running %s for mod: %s\n", fxn, m_last_run_mod.c_str());
+#endif
}
void ScriptApiBase::addObjectReference(ServerActiveObject *cobj)
void ScriptApiBase::objectrefGetOrCreate(lua_State *L,
ServerActiveObject *cobj)
{
- if(cobj == NULL || cobj->getId() == 0){
+ if (cobj == NULL || cobj->getId() == 0) {
ObjectRef::create(L, cobj);
} else {
objectrefGet(L, cobj->getId());
lua_remove(L, -2); // core
}
+Server* ScriptApiBase::getServer()
+{
+ return dynamic_cast<Server *>(m_gamedef);
+}
+#ifndef SERVER
+Client* ScriptApiBase::getClient()
+{
+ return dynamic_cast<Client *>(m_gamedef);
+}
+#endif
projects / dragonfireclient.git / blobdiff