node_addon util

WeChat.cc

void GetArgAsStdString(const Arguments& args, int n, std::string& str) {
	Local<String> inbuf_str = args[n].As<String>();
	str.resize(inbuf_str->Utf8Length());
	inbuf_str->WriteUtf8((char *) &(str[0]));
}

bool GetObjValAsUInteger(Handle<Object> obj, const char *key, size_t& uintVal) {
	Local<String> k = String::New(key);
	if (!obj->Has(k)) {
		return false;
	}
	Local<Value> val = obj->Get(k);
	uintVal = val->Uint32Value();

	return true;
}

bool GetObjValAsString(Handle<Object> obj, const char *key, std::string& str) {
	Local<String> k = String::New(key);
	if (!obj->Has(k)) {
		return false;
	}
	Local<Value> val = obj->Get(k);
	if (!val->IsString()) {
		return false;
	}
	Local<String> strVal = val.As<String>();
	str.resize(strVal->Utf8Length());
	strVal->WriteUtf8((char *) &(str[0]));

	return true;
}

bool GetBufferFromString(const std::string& str_b64, RBBuffer& buffer) {
	size_t buff_size;
	char *buff = base64_decode((char *) str_b64.c_str(), str_b64.size(), &buff_size);

	if (!buff) {
		return false;
	}

	buffer.Reset();
	buffer.Write(buff, buff_size);

	free(buff);

	return true;
}

bool GetObjValAsBase64Buffer(Handle<Object> obj, const char *key, RBBuffer& buffer) {
	std::string str_b64;
	if (!GetObjValAsString(obj, key, str_b64)) {
		return false;
	}

	return GetBufferFromString(str_b64, buffer);
}