Merge pull request #38 from SpringRole/karan/airdrop/changes

attestation change

Author: 0x-genesys

contracts/Attestation.sol

@@ -1,11 +1,74 @@
 pragma solidity ^0.4.24;
 
-contract Attestation {
+/**
+* Contract for Vanity URL on SpringRole
+* Go to beta.springrole.com to try this out!
+*/
 
-    event Attest(address _address,string _type,string _data);
+/**
+ * @title Ownable
+ * @dev The Ownable contract has an owner address, and provides basic authorization control
+ * functions, this simplifies the implementation of “user permissions”.
+ */
+
+contract Ownable {
+  address public owner;
+
+
+  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
+
+  /**
+   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
+   * account.
+   */
+  constructor() public {
+    owner = msg.sender;
+  }
+
+
+  /**
+   * @dev Throws if called by any account other than the owner.
+   */
+  modifier onlyOwner() {
+    require(msg.sender == owner);
+    _;
+  }
+
+
+  /**
+   * @dev Allows the current owner to transfer control of the contract to a newOwner.
+   * @param newOwner The address to transfer ownership to.
+   */
+  function transferOwnership(address newOwner) onlyOwner public {
+    require(newOwner != address(0));
+    emit OwnershipTransferred(owner, newOwner);
+    owner = newOwner;
+  }
 
+}
+
+/*
+Attestatuion contract to enter event data for all attestations
+*/
+contract Attestation is Ownable {
+
+    /*
+    Attest by user
+    */
+    event Attest(address _address,string _type,string _data);
     function write(string _type,string _data) public returns (bool) {
         emit Attest(msg.sender,_type,_data);
         return true;
     }
+
+
+    event AttestByOwner(string _address,string _type,string _data);
+    /*
+    Write by owner to be committed in case of data migration
+    */
+    function writeByOwner(string _type, string _data, string _address) onlyOwner public returns (bool) {
+        emit AttestByOwner(_address,_type,_data);
+        return true;
+    }
+
 }