diff options
Diffstat (limited to 'src/script/lua_api/l_util.cpp')
| -rw-r--r-- | src/script/lua_api/l_util.cpp | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/script/lua_api/l_util.cpp b/src/script/lua_api/l_util.cpp index c4a988e07..901105fe0 100644 --- a/src/script/lua_api/l_util.cpp +++ b/src/script/lua_api/l_util.cpp @@ -36,6 +36,8 @@ with this program; if not, write to the Free Software Foundation, Inc., #include "util/base64.h" #include "config.h" #include "version.h" +#include "util/hex.h" +#include "util/sha1.h" #include <algorithm> @@ -422,6 +424,32 @@ int ModApiUtil::l_get_version(lua_State *L) return 1; } +int ModApiUtil::l_sha1(lua_State *L) +{ + NO_MAP_LOCK_REQUIRED; + size_t size; + const char *data = luaL_checklstring(L, 1, &size); + bool hex = !lua_isboolean(L, 2) || !lua_toboolean(L, 2); + + // Compute actual checksum of data + std::string data_sha1; + { + SHA1 ctx; + ctx.addBytes(data, size); + unsigned char *data_tmpdigest = ctx.getDigest(); + data_sha1.assign((char*) data_tmpdigest, 20); + free(data_tmpdigest); + } + + if (hex) { + std::string sha1_hex = hex_encode(data_sha1); + lua_pushstring(L, sha1_hex.c_str()); + } else { + lua_pushlstring(L, data_sha1.data(), data_sha1.size()); + } + + return 1; +} void ModApiUtil::Initialize(lua_State *L, int top) { @@ -454,6 +482,7 @@ void ModApiUtil::Initialize(lua_State *L, int top) API_FCT(decode_base64); API_FCT(get_version); + API_FCT(sha1); LuaSettings::create(L, g_settings, g_settings_path); lua_setfield(L, top, "settings"); @@ -479,6 +508,7 @@ void ModApiUtil::InitializeClient(lua_State *L, int top) API_FCT(decode_base64); API_FCT(get_version); + API_FCT(sha1); } void ModApiUtil::InitializeAsync(lua_State *L, int top) @@ -504,6 +534,7 @@ void ModApiUtil::InitializeAsync(lua_State *L, int top) API_FCT(decode_base64); API_FCT(get_version); + API_FCT(sha1); LuaSettings::create(L, g_settings, g_settings_path); lua_setfield(L, top, "settings"); |