Add base64 encoding and decoding to the lua api. (#3919)

This commit is contained in:
red-001 2016-05-28 04:37:28 +01:00 committed by kwolekr
parent c4e083f7e1
commit 62d15ac7c1
4 changed files with 49 additions and 0 deletions

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@ -2438,6 +2438,10 @@ These functions return the leftover itemstack.
* See documentation on `minetest.compress()` for supported compression methods.
* currently supported.
* `...` indicates method-specific arguments. Currently, no methods use this.
* `minetest.encode_base64(string)`: returns string encoded in base64
* Encodes a string in base64.
* `minetest.decode_base64(string)`: returns string
* Decodes a string encoded in base64.
* `minetest.is_protected(pos, name)`: returns boolean
* Returns true, if player `name` shouldn't be abled to dig at `pos` or do other
actions, defineable by mods, due to some mod-defined ownership-like concept.

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@ -210,6 +210,10 @@ string:trim()
^ eg. string.trim("\n \t\tfoo bar\t ") == "foo bar"
core.is_yes(arg) (possible in async calls)
^ returns whether arg can be interpreted as yes
minetest.encode_base64(string) (possible in async calls)
^ Encodes a string in base64.
minetest.decode_base64(string) (possible in async calls)
^ Decodes a string encoded in base64.
Version compat:
core.get_min_supp_proto()

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@ -32,6 +32,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "filesys.h"
#include "settings.h"
#include "util/auth.h"
#include "util/base64.h"
#include <algorithm>
// log([level,] text)
@ -320,6 +321,34 @@ int ModApiUtil::l_decompress(lua_State *L)
return 1;
}
// encode_base64(string)
int ModApiUtil::l_encode_base64(lua_State *L)
{
NO_MAP_LOCK_REQUIRED;
size_t size;
const char *data = luaL_checklstring(L, 1, &size);
std::string out = base64_encode((const unsigned char *)(data), size);
lua_pushlstring(L, out.data(), out.size());
return 1;
}
// decode_base64(string)
int ModApiUtil::l_decode_base64(lua_State *L)
{
NO_MAP_LOCK_REQUIRED;
size_t size;
const char *data = luaL_checklstring(L, 1, &size);
std::string out = base64_decode(std::string(data, size));
lua_pushlstring(L, out.data(), out.size());
return 1;
}
// mkdir(path)
int ModApiUtil::l_mkdir(lua_State *L)
{
@ -433,6 +462,9 @@ void ModApiUtil::Initialize(lua_State *L, int top)
API_FCT(get_dir_list);
API_FCT(request_insecure_environment);
API_FCT(encode_base64);
API_FCT(decode_base64);
}
void ModApiUtil::InitializeAsync(AsyncEngine& engine)
@ -459,5 +491,8 @@ void ModApiUtil::InitializeAsync(AsyncEngine& engine)
ASYNC_API_FCT(mkdir);
ASYNC_API_FCT(get_dir_list);
ASYNC_API_FCT(encode_base64);
ASYNC_API_FCT(decode_base64);
}

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@ -95,6 +95,12 @@ private:
// request_insecure_environment()
static int l_request_insecure_environment(lua_State *L);
// encode_base64(string)
static int l_encode_base64(lua_State *L);
// decode_base64(string)
static int l_decode_base64(lua_State *L);
public:
static void Initialize(lua_State *L, int top);