- Updates data from compiled solc.

python/eth_accounts_index/data/AccountsIndex.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":"_account","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":"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":"nonpayable","type":"function"},{"inputs":[],"name":"entryCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"have","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"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":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":"_account","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":"address","name":"_writer","type":"address"}],"name":"deleteWriter","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"entryCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"have","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"isRemoved","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","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_accounts_index/interface.py

@@ -5,22 +5,22 @@ import os
 
 # external imports
 from chainlib.eth.tx import (
-        TxFactory,
+    TxFactory,
-        TxFormat,
+    TxFormat,
-        )
+)
 from chainlib.eth.contract import (
-        ABIContractEncoder,
+    ABIContractEncoder,
-        ABIContractDecoder,
+    ABIContractDecoder,
-        ABIContractType,
+    ABIContractType,
-        abi_decode_single,
+    abi_decode_single,
-        )
+)
 from chainlib.eth.constant import ZERO_ADDRESS
 from chainlib.jsonrpc import JSONRPCRequest
 from chainlib.eth.error import RequestMismatchException
 from hexathon import (
-        add_0x,
+    add_0x,
-        strip_0x,
+    strip_0x,
-        )
+)
 
 logg = logging.getLogger()
 
@@ -38,10 +38,11 @@ class AccountsIndex(TxFactory):
         tx = self.finalize(tx, tx_format)
         return tx
 
-
     def add(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
         return self.__single_address_method('add', contract_address, sender_address, address, tx_format)
 
+    def remove(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
+        return self.__single_address_method('remove', contract_address, sender_address, address, tx_format)
 
     def have(self, contract_address, address, sender_address=ZERO_ADDRESS, id_generator=None):
         j = JSONRPCRequest(id_generator)
@@ -57,8 +58,7 @@ class AccountsIndex(TxFactory):
         o['params'].append(self.normalize(tx))
         return o
 
-
+    def  entry_count(self, contract_address, sender_address=ZERO_ADDRESS, id_generator=None):
-    def entry_count(self, contract_address, sender_address=ZERO_ADDRESS, id_generator=None):
         j = JSONRPCRequest(id_generator)
         o = j.template()
         o['method'] = 'eth_call'
@@ -70,11 +70,9 @@ class AccountsIndex(TxFactory):
         o['params'].append(self.normalize(tx))
         return o
 
-
     def count(self, contract_address, sender_address=ZERO_ADDRESS, id_generator=None):
         return self.entry_count(contract_address, sender_address=sender_address, id_generator=id_generator)
 
-
     def entry(self, contract_address, idx, sender_address=ZERO_ADDRESS, id_generator=None):
         j = JSONRPCRequest(id_generator)
         o = j.template()
@@ -89,22 +87,18 @@ class AccountsIndex(TxFactory):
         o['params'].append(self.normalize(tx))
         return o
 
-
     @classmethod
     def parse_account(self, v):
         return abi_decode_single(ABIContractType.ADDRESS, v)
 
-
     @classmethod
     def parse_entry_count(self, v):
         return abi_decode_single(ABIContractType.UINT256, v)
 
-
     @classmethod
     def parse_have(self, v):
         return abi_decode_single(ABIContractType.BOOLEAN, v)
 
-
     @classmethod
     def parse_add_request(self, v):
         v = strip_0x(v)
@@ -121,6 +115,6 @@ class AccountsIndex(TxFactory):
 
         dec = ABIContractDecoder()
         dec.typ(ABIContractType.ADDRESS)
-        dec.val(v[cursor:cursor+64])
+        dec.val(v[cursor:cursor + 64])
         r = dec.decode()
         return r

python/eth_accounts_index/registry.py

@@ -1,14 +1,16 @@
 # standard imports
 import os
+import json
 
+import pathlib
 # external imports
 from chainlib.eth.tx import (
-        TxFormat,
+    TxFormat,
-        )
+)
 from chainlib.eth.contract import (
-        ABIContractEncoder,
+    ABIContractEncoder,
-        ABIContractType,
+    ABIContractType,
-        )
+)
 
 # local imports
 from .interface import AccountsIndex
@@ -18,40 +20,34 @@ datadir = os.path.join(moddir, 'data')
 
 
 class AccountRegistry(AccountsIndex):
-
     __abi = None
     __bytecode = None
 
     @staticmethod
     def abi():
-        if AccountRegistry.__abi == None:
+        if AccountRegistry.__abi is None:
-            f = open(os.path.join(datadir, 'AccountsIndex.json'), 'r')
+            with open(os.path.join(datadir, 'AccountsIndex.json'), 'r') as f:
-            AccountRegistry.__abi = json.load(f)
+                AccountRegistry.__abi = json.load(f)
-            f.close()
         return AccountRegistry.__abi
 
-
     @staticmethod
     def bytecode():
-        if AccountRegistry.__bytecode == None:
+        if AccountRegistry.__bytecode is None:
-            f = open(os.path.join(datadir, 'AccountsIndex.bin'))
+            AccountRegistry.__bytecode = pathlib.Path(
-            AccountRegistry.__bytecode = f.read()
+                os.path.join(datadir, 'AccountsIndex.bin')
-            f.close()
+            ).read_text()
         return AccountRegistry.__bytecode
 
-
     @staticmethod
     def gas(code=None):
         return 1200000
 
-
     def constructor(self, sender_address):
         code = AccountRegistry.bytecode()
         tx = self.template(sender_address, None, use_nonce=True)
         tx = self.set_code(tx, code)
         return self.build(tx)
 
-
     def __single_address_method(self, method, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
         enc = ABIContractEncoder()
         enc.method(method)
@@ -63,10 +59,8 @@ class AccountRegistry(AccountsIndex):
         tx = self.finalize(tx, tx_format)
         return tx
 
-
     def add_writer(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
         return self.__single_address_method('addWriter', contract_address, sender_address, address, tx_format)
 
-
     def delete_writer(self, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
         return self.__single_address_method('deleteWriter', contract_address, sender_address, address, tx_format)

python/setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = eth-accounts-index
-version = 0.3.0
+version = 0.3.1
 description = Accounts index evm contract tooling with permissioned writes
 author = Louis Holbrook
 author_email = dev@holbrook.no

python/tests/test_app.py

@@ -50,7 +50,7 @@ class Test(EthTesterCase):
         (tx_hash, o) = c.constructor(self.accounts[0])
         self.conn = RPCConnection.connect(self.chain_spec, 'default')
         r = self.conn.do(o)
-        logg.debug('deployed with hash {}'.format(r))
+        logg.debug(f'deployed with hash {r}')
 
         o = receipt(r)
         r = self.conn.do(o)
@@ -133,6 +133,37 @@ class Test(EthTesterCase):
 
         #self.assertFalse(registry.have(self.w3.eth.accounts[3]))
 
+    def test_5_remove(self):
+        nonce_oracle = RPCNonceOracle(self.accounts[0], self.conn)
+        c = AccountsIndex(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+
+        b = os.urandom(20)
+        a = to_checksum_address(b.hex())
+        (tx_hash, o) = c.add(self.address, self.accounts[0], a)
+        r = self.conn.do(o)
+
+        o = c.entry_count(self.address, sender_address=self.accounts[0])
+        r = self.conn.do(o)
+        count = c.parse_entry_count(r)
+        self.assertEqual(count, 1)
+
+        b = os.urandom(20)
+        a = to_checksum_address(b.hex())
+        (tx_hash, o) = c.add(self.address, self.accounts[0], a)
+        r = self.conn.do(o)
+
+        o = c.entry_count(self.address, sender_address=self.accounts[0])
+        r = self.conn.do(o)
+        count = c.parse_entry_count(r)
+        self.assertEqual(count, 2)
+
+        (tx_hash, o) = c.remove(self.address, self.accounts[0], a)
+        r = self.conn.do(o)
+
+        o = c.entry_count(self.address, sender_address=self.accounts[0])
+        r = self.conn.do(o)
+        count = c.parse_entry_count(r)
+        self.assertEqual(count, 1)
 
 
 # TODO: reinstate all tests

solidity/AccountsIndex.sol

@@ -5,7 +5,7 @@ pragma solidity >0.6.11;
 
 contract CustodialAccountIndex {
 
-	address[] entries;
+	uint256 public entryCount;
 	mapping(address => uint256) entryIndex;
 	mapping(address => bool) writers;
 	address public owner;
@@ -16,8 +16,6 @@ contract CustodialAccountIndex {
 
 	constructor() public {
 		owner = msg.sender;
-		entries.push(address(0));
-		count = 1;
 	}
 
 	function addWriter(address _writer) public returns (bool) {
@@ -36,9 +34,18 @@ contract CustodialAccountIndex {
 	function add(address _account) external returns (bool) {
 		require(writers[msg.sender]);
 		require(entryIndex[_account] == 0);
-		entryIndex[_account] = entries.length;
+		entryIndex[_account] = block.timestamp;
-		entries.push(_account);
+		entryCount = entryCount + 1;
-		emit AddressAdded(_account, entries.length-1);
+		emit AddressAdded(_account, block.timestamp);
+		return true;
+	}
+
+	// Implements AccountsIndex
+	function remove(address _account) external returns (bool) {
+		require(writers[msg.sender]);
+		require(entryIndex[_account] > 0);
+		entryIndex[_account] = 0;
+		entryCount = entryCount - 1;
 		return true;
 	}
 
@@ -47,16 +54,6 @@ contract CustodialAccountIndex {
 		return entryIndex[_account] > 0;
 	}
 
-	// Implements AccountsIndex
-	function entry(uint256 _idx) public returns (address) {
-		return entries[_idx+1];
-	}
-
-	// Implements AccountsIndex
-	function entryCount() public returns (uint256) {
-		return entries.length - 1;
-	}
-
 	// Implements EIP173
 	function transferOwnership(address _newOwner) public returns (bool) {
 		require(msg.sender == owner);
@@ -93,4 +90,11 @@ contract CustodialAccountIndex {
 		}
 		return false;
 	}
+
+	function isRemoved(address _account) external view returns (bool){
+		if (entryIndex[_account] == 0) {
+			return true;
+		}
+		return false;
+	}
 }

solidity/Makefile

@@ -6,5 +6,6 @@ all:
 	$(SOLC) --abi AccountsIndex.sol --evm-version byzantium | awk 'NR>3' > AccountsIndex.json
 
 install: all
-	cp -v *{json,bin} ../python/eth_accounts_index/data/
+	cp -v *"json" ../python/eth_accounts_index/data/
+	cp -v *"bin" ../python/eth_accounts_index/data/