Change identifiers to literal instead of hashes

python/CHANGELOG

@@ -1,3 +1,7 @@
+- 0.6.0
+	* Use literal keys instead of hashes in registry
+- 0.5.0
+	* Update python classifiers
 - 0.4.3
 	* Upgrade deps
 - 0.4.2

python/eth_token_index/data/TokenUniqueSymbolIndex.json

@@ -1 +1 @@
-[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"addedAccount","type":"address"},{"indexed":true,"internalType":"uint256","name":"accountIndex","type":"uint256"}],"name":"AddressAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[],"name":"acceptOwnership","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"add","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_writer","type":"address"}],"name":"addWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_key","type":"bytes32"}],"name":"addressOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_writer","type":"address"}],"name":"deleteWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_idx","type":"uint256"}],"name":"entry","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"entryCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"register","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"registry","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]
+[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_token","type":"address"}],"name":"AddressAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"_symbol","type":"bytes32"},{"indexed":false,"internalType":"address","name":"_token","type":"address"}],"name":"AddressKey","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_token","type":"address"}],"name":"AddressRemoved","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_writer","type":"address"}],"name":"WriterAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_writer","type":"address"}],"name":"WriterDeleted","type":"event"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"activate","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"add","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_writer","type":"address"}],"name":"addWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_key","type":"bytes32"}],"name":"addressOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"deactivate","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_writer","type":"address"}],"name":"deleteWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_idx","type":"uint256"}],"name":"entry","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"entryCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"register","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"remove","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]

python/eth_token_index/data/TokenUniqueSymbolIndex.metadata.json

@@ -1 +1 @@
-{"compiler":{"version":"0.8.18+commit.87f61d96"},"language":"Solidity","output":{"abi":[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"addedAccount","type":"address"},{"indexed":true,"internalType":"uint256","name":"accountIndex","type":"uint256"}],"name":"AddressAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[],"name":"acceptOwnership","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"add","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_writer","type":"address"}],"name":"addWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_key","type":"bytes32"}],"name":"addressOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_writer","type":"address"}],"name":"deleteWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_idx","type":"uint256"}],"name":"entry","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"entryCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"register","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"registry","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}],"devdoc":{"kind":"dev","methods":{},"version":1},"userdoc":{"kind":"user","methods":{},"version":1}},"settings":{"compilationTarget":{"TokenUniqueSymbolIndex.sol":"TokenUniqueSymbolIndex"},"evmVersion":"byzantium","libraries":{},"metadata":{"bytecodeHash":"ipfs"},"optimizer":{"enabled":false,"runs":200},"remappings":[]},"sources":{"TokenUniqueSymbolIndex.sol":{"keccak256":"0xcf9df7f7998e4e1f3978bb9c9c4c3d530b995d7ab7fdc5b096df7229044b9e1f","license":"GPL-3.0-or-later","urls":["bzz-raw://479c6b796953506e685c9d03d1158606adc0d409d9f7de3dfff5c2b578f37eb5","dweb:/ipfs/QmRhpDCSTnrPYGQL2dDGee3GZAGiqoVBLLqXc2NaDP8gPz"]}},"version":1}
+{"compiler":{"version":"0.8.18+commit.87f61d96"},"language":"Solidity","output":{"abi":[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_token","type":"address"}],"name":"AddressAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"_symbol","type":"bytes32"},{"indexed":false,"internalType":"address","name":"_token","type":"address"}],"name":"AddressKey","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_token","type":"address"}],"name":"AddressRemoved","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_writer","type":"address"}],"name":"WriterAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"_writer","type":"address"}],"name":"WriterDeleted","type":"event"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"activate","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"add","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_writer","type":"address"}],"name":"addWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_key","type":"bytes32"}],"name":"addressOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"deactivate","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_writer","type":"address"}],"name":"deleteWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_idx","type":"uint256"}],"name":"entry","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"entryCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"register","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"}],"name":"remove","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"_sum","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"transferOwnership","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}],"devdoc":{"kind":"dev","methods":{},"version":1},"userdoc":{"kind":"user","methods":{},"version":1}},"settings":{"compilationTarget":{"TokenUniqueSymbolIndex.sol":"TokenUniqueSymbolIndex"},"evmVersion":"byzantium","libraries":{},"metadata":{"bytecodeHash":"ipfs"},"optimizer":{"enabled":false,"runs":200},"remappings":[]},"sources":{"TokenUniqueSymbolIndex.sol":{"keccak256":"0x2a6fff0204fcb0f35a4995b0679ed49bf3044e15956122f5aaaeeb95f9f61fd4","license":"AGPL-3.0-or-later","urls":["bzz-raw://1180f1d3ab2a9791db5cadf8637baaf6719d8089af03307e59a6c2b0ec70a2c4","dweb:/ipfs/QmWczv5ERbmVFBUbWdW87afzDbXsq31FtuujpJ3vyWk9WL"]}},"version":1}

python/eth_token_index/index.py

@@ -32,9 +32,9 @@ datadir = os.path.join(moddir, 'data')
 
 
 def to_identifier(s):
-    h = hashlib.new('sha256')
-    h.update(s.encode('utf-8'))
-    return h.digest().hex()
+    r = s.encode('utf-8').hex()
+    assert len(r) < 64
+    return '{:0<64}'.format(r)
 
 
 class TokenUniqueSymbolIndex(TxFactory):

python/setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = eth-token-index
-version = 0.5.0
+version = 0.6.0
 description = Token symbol to address unique index
 author = Louis Holbrook
 author_email = dev@holbrook.no

solidity/TokenUniqueSymbolIndex.sol

@@ -1,19 +1,35 @@
-pragma solidity >0.6.11;
+pragma solidity >=0.8.0;
 
-// SPDX-License-Identifier: GPL-3.0-or-later
+// SPDX-License-Identifier: AGPL-3.0-or-later
 
 contract TokenUniqueSymbolIndex {
 
 	// EIP 173
 	address public owner;
-	address newOwner;
-	mapping(address => bool) writers;
+	mapping(address => bool) isWriter;
 
-	mapping ( bytes32 => uint256 ) public registry;
+	mapping ( bytes32 => uint256 ) registry;
+	//address[] tokenIndex;
+	mapping ( address => bytes32 ) tokenIndex;
 	address[] tokens;
 
-	event OwnershipTransferred(address indexed previousOwner, address indexed newOwner); // EIP173
-	event AddressAdded(address indexed addedAccount, uint256 indexed accountIndex); // AccountsIndex
+	// Implements EIP173
+	event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
+
+	// Implements AccountsIndex
+	event AddressKey(bytes32 indexed _symbol, address _token);
+
+	// Implements AccountsIndex
+	event AddressAdded(address _token);
+
+	// Implements AccountsIndexMutable
+	event AddressRemoved(address _token);
+
+	// Implements Writer
+	event WriterAdded(address _writer);
+
+	// Implements Writer
+	event WriterDeleted(address _writer);
 
 	constructor() {
 		owner = msg.sender;
@@ -33,8 +49,10 @@ contract TokenUniqueSymbolIndex {
 		return tokens[idx];
 	}
 
+	// Attempt to register the token at the given address.
+	// Will revet if symbol cannot be retrieved, or if symbol already exists.
 	function register(address _token) public returns (bool) {
-		require(writers[msg.sender]);
+		require(isWriter[msg.sender]);
 
 		bytes memory token_symbol;
 		bytes32 token_symbol_key;
@@ -44,14 +62,17 @@ contract TokenUniqueSymbolIndex {
 		require(_ok);
 
 		token_symbol = abi.decode(_r, (bytes));
-		token_symbol_key = sha256(token_symbol);
+		require(token_symbol.length <= 32, 'ERR_TOKEN_SYMBOL_TOO_LONG');
+		token_symbol_key = bytes32(token_symbol);
 
 		idx = registry[token_symbol_key];
 		require(idx == 0);
 
 		registry[token_symbol_key] = tokens.length;
 		tokens.push(_token);
-		emit AddressAdded(_token, tokens.length - 1);
+		tokenIndex[_token] = token_symbol_key;
+		emit AddressKey(token_symbol_key, _token);
+		emit AddressAdded(_token);
 		return true;
 	}
 
@@ -60,6 +81,38 @@ contract TokenUniqueSymbolIndex {
 		return register(_token);
 	}
 
+	// Implements AccountsIndexMutable
+	function remove(address _token) external returns (bool) {
+		uint256 i;
+		uint256 l;
+
+		require(isWriter[msg.sender], 'ERR_AXX');
+		require(tokenIndex[_token] != bytes32(0), 'ERR_NOT_FOUND');
+
+		l = tokens.length - 1;
+
+		i = registry[tokenIndex[_token]];
+		if (i < l) {
+			tokens[i] = tokens[l];
+		}		
+		tokens.pop();
+		registry[tokenIndex[_token]] = 0;
+		emit AddressRemoved(_token);
+		return true;
+	}
+
+	// Implements AccountsIndexMutable
+	function activate(address _token) public pure returns(bool) {
+		_token;
+		return false;
+	}
+
+	// Implements AccountsIndexMutable
+	function deactivate(address _token) public pure returns(bool) {
+		_token;
+		return false;
+	}
+
 
 	// Implements AccountsIndex
 	function entryCount() public view returns ( uint256 ) {
@@ -68,43 +121,46 @@ contract TokenUniqueSymbolIndex {
 
 	// Implements EIP173
 	function transferOwnership(address _newOwner) public returns (bool) {
-		require(msg.sender == owner);
-		newOwner = _newOwner;
-		return true;
-	}
-
-	// Implements OwnedAccepter
-	function acceptOwnership() public returns (bool) {
 		address oldOwner;
 
-		require(msg.sender == newOwner);
-		oldOwner = owner; 
-		owner = newOwner;
-		newOwner = address(0);
+		require(msg.sender == owner);
+		oldOwner = owner;
+		owner = _newOwner;
+
 		emit OwnershipTransferred(oldOwner, owner);
+
 		return true;
 	}
 
 	// Implements Writer
 	function addWriter(address _writer) public returns (bool) {
 		require(owner == msg.sender);
-		writers[_writer] = true;
+		isWriter[_writer] = true;
+
+		emit WriterAdded(_writer);
+
 		return true;
 	}
 
 	// Implements Writer
 	function deleteWriter(address _writer) public returns (bool) {
 		require(owner == msg.sender);
-		delete writers[_writer];
+		delete isWriter[_writer];
+
+		emit WriterDeleted(_writer);
+
 		return true;
 	}
 
 	// Implements EIP165
 	function supportsInterface(bytes4 _sum) public pure returns (bool) {
-		if (_sum == 0xcbdb05c7) { // AccountsIndex
+		if (_sum == 0x12625fe5) { // Registry
 			return true;
 		}
-		if (_sum == 0xbb34534c) { // RegistryClient
+		if (_sum == 0xb7bca625) { // AccountsIndex 
+			return true;
+		}
+		if (_sum == 0x9479f0ae) { // AccountsIndexMutable
 			return true;
 		}
 		if (_sum == 0x01ffc9a7) { // EIP165
@@ -113,9 +169,6 @@ contract TokenUniqueSymbolIndex {
 		if (_sum == 0x9493f8b2) { // EIP173
 			return true;
 		}
-		if (_sum == 0x37a47be4) { // OwnedAccepter
-			return true;
-		}
 		if (_sum == 0x80c84bd6) { // Writer
 			return true;
 		}