CLuaInstCurl: Add script functions

- encodeUri
 - decodeUri
 - setUriData
 - Set Lua api version to 1.78


Origin commit data
------------------
Branch: ni/coolstream
Commit: 9feb8efd23
Author: Michael Liebmann <tuxcode.bbg@gmail.com>
Date: 2017-10-23 (Mon, 23 Oct 2017)



------------------
This commit was generated by Migit

src/gui/lua/lua_api_version.h

@@ -4,4 +4,4 @@
  * to luainstance.h changes
  */
 #define LUA_API_VERSION_MAJOR 1
-#define LUA_API_VERSION_MINOR 77
+#define LUA_API_VERSION_MINOR 78

src/gui/lua/lua_curl.cpp

@@ -52,9 +52,12 @@ CLuaCurl *CLuaInstCurl::CurlCheckData(lua_State *L, int n)
 void CLuaInstCurl::LuaCurlRegister(lua_State *L)
 {
 	luaL_Reg meth[] = {
-		{ "new",      CLuaInstCurl::CurlNew },
+		{ "new",	CLuaInstCurl::CurlNew },
-		{ "download", CLuaInstCurl::CurlDownload },
+		{ "download",	CLuaInstCurl::CurlDownload },
-		{ "__gc",     CLuaInstCurl::CurlDelete },
+		{ "encodeUri",	CLuaInstCurl::CurlEncodeUri },
+		{ "decodeUri",	CLuaInstCurl::CurlDecodeUri },
+		{ "setUriData",	CLuaInstCurl::CurlSetUriData },
+		{ "__gc",	CLuaInstCurl::CurlDelete },
 		{ NULL, NULL }
 	};
 
@@ -374,6 +377,108 @@ Example:
 	return 2;
 }
 
+std::string CLuaInstCurl::CurlUriInternal(std::string data, bool decode)
+{
+	std::string retString = "";
+	CURL *curl_handle = curl_easy_init();
+	if (curl_handle) {
+		int outlength;
+		char *pfTmp;
+		if (decode)
+			pfTmp = curl_easy_unescape(curl_handle, data.c_str(), data.length(), &outlength);
+		else
+			pfTmp = curl_easy_escape(curl_handle, data.c_str(), data.length());
+		if (pfTmp) {
+			retString = static_cast<std::string>(pfTmp);
+			curl_free(pfTmp);
+		}
+		curl_easy_cleanup(curl_handle);
+	}
+	return retString;
+}
+
+int CLuaInstCurl::CurlEncodeUri(lua_State *L)
+{
+	CLuaCurl *D = CurlCheckData(L, 1);
+	if (!D) {
+		lua_pushnil(L);
+		return 1;
+	}
+	const char *data = luaL_checkstring(L, 2);
+	if (!data) {
+		lua_pushnil(L);
+		return 1;
+	}
+
+	std::string retString = CurlUriInternal(static_cast<std::string>(data), false);
+
+	if (retString.empty())
+		lua_pushnil(L);
+	else
+		lua_pushstring(L, retString.c_str());
+
+	return 1;
+}
+
+int CLuaInstCurl::CurlDecodeUri(lua_State *L)
+{
+	CLuaCurl *D = CurlCheckData(L, 1);
+	if (!D) {
+		lua_pushnil(L);
+		return 1;
+	}
+	const char *data = luaL_checkstring(L, 2);
+	if (!data) {
+		lua_pushnil(L);
+		return 1;
+	}
+
+	std::string retString = CurlUriInternal(static_cast<std::string>(data), true);
+
+	if (retString.empty())
+		lua_pushnil(L);
+	else
+		lua_pushstring(L, retString.c_str());
+
+	return 1;
+}
+
+int CLuaInstCurl::CurlSetUriData(lua_State *L)
+{
+	CLuaCurl *D = CurlCheckData(L, 1);
+	if (!D) {
+		lua_pushnil(L);
+		return 1;
+	}
+	int numargs = lua_gettop(L);
+	if (numargs < 3) {
+		printf("CLuaInstVideo::%s: not enough arguments (%d, expected at least 2)\n", __func__, numargs-1);
+		lua_pushnil(L);
+		return 1;
+	}
+
+	const char *key;
+	const char *data;
+	std::string retString = "";
+	for (int i = 2; i < numargs; i += 2) {
+		key = luaL_checkstring(L, i);
+		data = luaL_checkstring(L, i+1);
+		if (key && data && (strlen(key) > 0)) {
+			if (i > 2)
+				retString += "&";
+			retString += static_cast<std::string>(key) + "=";
+			retString += CurlUriInternal(static_cast<std::string>(data), false);
+		}
+	}
+
+	if (retString.empty())
+		lua_pushnil(L);
+	else
+		lua_pushstring(L, retString.c_str());
+
+	return 1;
+}
+
 int CLuaInstCurl::CurlDelete(lua_State *L)
 {
 	CLuaCurl *D = CurlCheckData(L, 1);

src/gui/lua/lua_curl.h

@@ -47,6 +47,7 @@ class CLuaInstCurl
 		~CLuaInstCurl() {};
 		static CLuaInstCurl* getInstance();
 		static void LuaCurlRegister(lua_State *L);
+		static std::string CurlUriInternal(std::string data, bool decode);
 
 	private:
 		static CLuaCurl *CurlCheckData(lua_State *L, int n);
@@ -57,6 +58,9 @@ class CLuaInstCurl
 #endif
 		static int CurlProgressFunc(void *p, curl_off_t dltotal, curl_off_t dlnow, curl_off_t ultotal, curl_off_t ulnow);
 		static int CurlDownload(lua_State *L);
+		static int CurlEncodeUri(lua_State *L);
+		static int CurlDecodeUri(lua_State *L);
+		static int CurlSetUriData(lua_State *L);
 		static int CurlDelete(lua_State *L);
 };