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/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 "mod_lua.h"
#include "lua_apr.h"
APLOG_USE_MODULE(lua);
req_table_t *ap_lua_check_apr_table(lua_State *L, int index)
{
req_table_t* t;
luaL_checkudata(L, index, "Apr.Table");
t = lua_unboxpointer(L, index);
return t;
}
void ap_lua_push_apr_table(lua_State *L, req_table_t *t)
{
lua_boxpointer(L, t);
luaL_getmetatable(L, "Apr.Table");
lua_setmetatable(L, -2);
}
static int lua_table_set(lua_State *L)
{
req_table_t *t = ap_lua_check_apr_table(L, 1);
const char *key = luaL_checkstring(L, 2);
const char *val = luaL_optlstring(L, 3, NULL, NULL);
if (!val) {
apr_table_unset(t->t, key);
return 0;
}
/* Unless it's the 'notes' table, check for newline chars */
/* t->r will be NULL in case of the connection notes, but since
we aren't going to check anything called 'notes', we can safely
disregard checking whether t->r is defined.
*/
if (strcmp(t->n, "notes") && ap_strchr_c(val, '\n')) {
char *badchar;
char *replacement = apr_pstrdup(t->r->pool, val);
badchar = replacement;
while ( (badchar = ap_strchr(badchar, '\n')) ) {
*badchar = ' ';
}
ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0, t->r, APLOGNO(02614)
"mod_lua: Value for '%s' in table '%s' contains newline!",
key, t->n);
apr_table_set(t->t, key, replacement);
}
else {
apr_table_set(t->t, key, val);
}
return 0;
}
static int lua_table_get(lua_State *L)
{
req_table_t *t = ap_lua_check_apr_table(L, 1);
const char *key = luaL_checkstring(L, 2);
const char *val = apr_table_get(t->t, key);
lua_pushstring(L, val);
return 1;
}
static const luaL_Reg lua_table_methods[] = {
{"set", lua_table_set},
{"get", lua_table_get},
{0, 0}
};
int ap_lua_init(lua_State *L, apr_pool_t *p)
{
luaL_newmetatable(L, "Apr.Table");
#if LUA_VERSION_NUM < 502
luaL_register(L, "apr_table", lua_table_methods);
#else
luaL_newlib(L, lua_table_methods);
#endif
lua_pushstring(L, "__index");
lua_pushstring(L, "get");
lua_gettable(L, 2);
lua_settable(L, 1);
lua_pushstring(L, "__newindex");
lua_pushstring(L, "set");
lua_gettable(L, 2);
lua_settable(L, 1);
return 0;
}