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IML_AirdropSignup.sol
52 lines (42 loc) · 1.38 KB
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IML_AirdropSignup.sol
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// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.5.1;
/**
* @title Storage
* @dev Store & retrieve value in a variable
*/
contract Signup {
address public owner = msg.sender;
event NetworkAdded(string _network_name, uint256 _network_id);
event NetworkRemoved(string _network_name, uint256 _network_id);
mapping (uint256=>string) public networks;
mapping (uint256=>bool) public network_exists;
mapping (address=>mapping (uint256=>string)) public registries;
function addNetwork(uint256 _id, string memory _network_name) public only_owner
{
require(!network_exists[_id]);
network_exists[_id] = true;
networks[_id] = _network_name;
emit NetworkAdded(_network_name, _id);
}
function getNetwork(uint256 _id) public view returns(string memory)
{
return networks[_id];
}
function removeNetwork(uint256 _id) public only_owner
{
require(network_exists[_id]);
emit NetworkRemoved( networks[_id], _id);
networks[_id] = "";
network_exists[_id] = false;
}
function assignAddress(uint256 _network_id, string memory _address) public
{
require(network_exists[_network_id]);
registries[msg.sender][_network_id] = _address;
}
modifier only_owner
{
require(msg.sender == owner);
_;
}
}