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Add base64 encoding and decoding to the lua api. (#3919)
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@ -2438,6 +2438,10 @@ These functions return the leftover itemstack.
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* See documentation on `minetest.compress()` for supported compression methods.
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* currently supported.
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* `...` indicates method-specific arguments. Currently, no methods use this.
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* `minetest.encode_base64(string)`: returns string encoded in base64
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* Encodes a string in base64.
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* `minetest.decode_base64(string)`: returns string
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* Decodes a string encoded in base64.
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* `minetest.is_protected(pos, name)`: returns boolean
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* Returns true, if player `name` shouldn't be abled to dig at `pos` or do other
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actions, defineable by mods, due to some mod-defined ownership-like concept.
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@ -210,6 +210,10 @@ string:trim()
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^ eg. string.trim("\n \t\tfoo bar\t ") == "foo bar"
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core.is_yes(arg) (possible in async calls)
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^ returns whether arg can be interpreted as yes
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minetest.encode_base64(string) (possible in async calls)
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^ Encodes a string in base64.
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minetest.decode_base64(string) (possible in async calls)
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^ Decodes a string encoded in base64.
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Version compat:
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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.,
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#include "filesys.h"
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#include "settings.h"
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#include "util/auth.h"
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#include "util/base64.h"
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#include <algorithm>
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// log([level,] text)
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@ -320,6 +321,34 @@ int ModApiUtil::l_decompress(lua_State *L)
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return 1;
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}
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// encode_base64(string)
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int ModApiUtil::l_encode_base64(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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size_t size;
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const char *data = luaL_checklstring(L, 1, &size);
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std::string out = base64_encode((const unsigned char *)(data), size);
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lua_pushlstring(L, out.data(), out.size());
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return 1;
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}
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// decode_base64(string)
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int ModApiUtil::l_decode_base64(lua_State *L)
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{
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NO_MAP_LOCK_REQUIRED;
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size_t size;
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const char *data = luaL_checklstring(L, 1, &size);
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std::string out = base64_decode(std::string(data, size));
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lua_pushlstring(L, out.data(), out.size());
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return 1;
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}
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// mkdir(path)
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int ModApiUtil::l_mkdir(lua_State *L)
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{
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@ -433,6 +462,9 @@ void ModApiUtil::Initialize(lua_State *L, int top)
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API_FCT(get_dir_list);
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API_FCT(request_insecure_environment);
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API_FCT(encode_base64);
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API_FCT(decode_base64);
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}
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void ModApiUtil::InitializeAsync(AsyncEngine& engine)
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@ -459,5 +491,8 @@ void ModApiUtil::InitializeAsync(AsyncEngine& engine)
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ASYNC_API_FCT(mkdir);
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ASYNC_API_FCT(get_dir_list);
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ASYNC_API_FCT(encode_base64);
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ASYNC_API_FCT(decode_base64);
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}
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@ -95,6 +95,12 @@ private:
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// request_insecure_environment()
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static int l_request_insecure_environment(lua_State *L);
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// encode_base64(string)
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static int l_encode_base64(lua_State *L);
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// decode_base64(string)
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static int l_decode_base64(lua_State *L);
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public:
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static void Initialize(lua_State *L, int top);
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