Refactor interfaces

solidity/AddressDeclarator.json

@@ -0,0 +1 @@
+[{"inputs":[{"internalType":"bytes32[]","name":"_descriptions","type":"bytes32[]"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"_subject","type":"address"},{"internalType":"bytes32","name":"_proof","type":"bytes32"}],"name":"addDeclaration","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_declarator","type":"address"},{"internalType":"address","name":"_target","type":"address"}],"name":"declaration","outputs":[{"internalType":"bytes32[]","name":"","type":"bytes32[]"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_target","type":"address"},{"internalType":"uint256","name":"_idx","type":"uint256"}],"name":"declarator","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"declaratorCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]

solidity/AddressDeclarator.sol

@@ -0,0 +1,55 @@
+pragma solidity >=0.6.12;
+
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+contract AddressDeclarator {
+
+	struct declaratorItem {
+		address signer;
+		bytes32[] content;
+	}
+
+	mapping( address => uint256[] ) declaratorItemsIndex;
+	mapping( address => uint256 ) public declaratorCount;
+	mapping( address => mapping ( address => declaratorItem ) ) declarationByDeclaratorIndex;
+ 	declaratorItem[] declaratorItems;
+
+	constructor(bytes32[] memory _descriptions) {
+		for (uint i; i < _descriptions.length; i++) {
+			addDeclaration(msg.sender, _descriptions[i]);
+		}
+	}
+
+	function addDeclaration(address _subject, bytes32 _proof) public returns ( bool ) {
+		declaratorItem storage item;
+
+		item = declarationByDeclaratorIndex[msg.sender][_subject];
+		if (item.signer == address(0)) {
+			item.signer = msg.sender;
+			declaratorItemsIndex[_subject].push(declaratorItems.length);
+			declaratorItems.push(item);
+			declaratorCount[_subject]++;
+		}
+		item.content.push(_proof);
+
+		return true;
+	}
+
+	function declarator(address _target, uint256 _idx) public view returns ( address ) {
+		uint256 idx;
+		declaratorItem storage item;
+		
+		idx = declaratorItemsIndex[_target][_idx];
+		item = declaratorItems[idx];
+
+		return item.signer;
+	}
+
+	function declaration(address _declarator, address _target) public view returns ( bytes32[] memory ) {
+		declaratorItem storage item;
+		
+		item = declarationByDeclaratorIndex[_declarator][_target];
+
+		return item.content;
+	}
+}

solidity/Makefile

@@ -1,7 +1,7 @@
 all:
-	solc TokenEndorser.sol --abi | awk 'NR>3' > TokenEndorser.json
-	solc TokenEndorser.sol --bin | awk 'NR>3' > TokenEndorser.bin
-	truncate -s -1 TokenEndorser.bin
+	solc AddressDeclarator.sol --abi | awk 'NR>3' > AddressDeclarator.json
+	solc AddressDeclarator.sol --bin | awk 'NR>3' > AddressDeclarator.bin
+	truncate -s -1 AddressDeclarator.bin
 
 test: all
 	python test.py

solidity/test.py

@@ -19,60 +19,80 @@ provider = web3.Web3.EthereumTesterProvider(instance)
 w3 = web3.Web3(provider)
 
 
-f = open('TokenEndorser.bin', 'r')
+f = open('AddressDeclarator.bin', 'r')
 bytecode = f.read()
 f.close()
 
-f = open('TokenEndorser.json', 'r')
+f = open('AddressDeclarator.json', 'r')
 abi = json.load(f)
 f.close()
 
-token_address = web3.Web3.toChecksumAddress('0x' + os.urandom(20).hex())
+#token_address = web3.Web3.toChecksumAddress('0x' + os.urandom(20).hex())
 
 c = w3.eth.contract(abi=abi, bytecode=bytecode)
-tx_hash = c.constructor().transact({'from': w3.eth.accounts[0]})
+#tx_hash = c.constructor().transact({'from': w3.eth.accounts[0]})
+
+declarations = [
+    ['0x' + os.urandom(32).hex(), '0x' + os.urandom(32).hex()],
+    ['0x' + os.urandom(32).hex(), '0x' + os.urandom(32).hex()],
+    ['0x' + os.urandom(32).hex(), '0x' + os.urandom(32).hex()],
+        ]
+
+# Deployment is a self-signed declaration
+tx_hash = c.constructor(declarations[0]).transact({'from': w3.eth.accounts[0]})
 r = w3.eth.getTransactionReceipt(tx_hash)
-logg.debug('contract {} initial token {}'.format(r.contractAddress, token_address))
+logg.debug('contract {}'.format(r.contractAddress))
 
 c = w3.eth.contract(abi=abi, address=r.contractAddress)
-d = '0x' + os.urandom(32).hex()
 
-# Initial token will fail in any case
-c.functions.add(token_address, d).transact({'from':w3.eth.accounts[0]})
+r = c.functions.declaratorCount(w3.eth.accounts[0]).call()
+assert r == 1
 
-fail = False
-try:
-    c.functions.add(token_address, d).transact({'from':w3.eth.accounts[0]})
-except:
-    fail = True
-    pass
+r = c.functions.declarator(w3.eth.accounts[0], 0).call()
+assert r == w3.eth.accounts[0]
 
-if not fail:
-    raise RuntimeError('expected fail on register same token to same address')
+r = c.functions.declaration(w3.eth.accounts[0], w3.eth.accounts[0]).call()
+assert r[0].hex() == declarations[0][0][2:]
+assert r[1].hex() == declarations[0][1][2:]
 
 
-c.functions.add(token_address, d).transact({'from':w3.eth.accounts[1]})
+# Add first declaration for 0 by 2
+c.functions.addDeclaration(w3.eth.accounts[0], declarations[1][0]).transact({'from': w3.eth.accounts[2]})
+
+r = c.functions.declaratorCount(w3.eth.accounts[0]).call()
+assert r == 2
+
+r = c.functions.declarator(w3.eth.accounts[0], 1).call()
+assert r == w3.eth.accounts[2]
+
+r = c.functions.declaration(w3.eth.accounts[2], w3.eth.accounts[0]).call()
+assert r[0].hex() == declarations[1][0][2:]
 
 
-h = hashlib.new('sha256')
-h.update(bytes.fromhex(token_address[2:]))
-h.update(bytes.fromhex(w3.eth.accounts[0][2:]))
-z = h.digest()
+# Add second declaration for 0 by 2
+c.functions.addDeclaration(w3.eth.accounts[0], declarations[1][1]).transact({'from': w3.eth.accounts[2]})
 
-assert d[2:] == c.functions.endorsement(z.hex()).call().hex()
+r = c.functions.declaratorCount(w3.eth.accounts[0]).call()
+assert r == 2
 
 
-another_token_address = web3.Web3.toChecksumAddress('0x' + os.urandom(20).hex())
-c.functions.add(another_token_address, d).transact({'from':w3.eth.accounts[0]})
-
-assert c.functions.endorsers(w3.eth.accounts[0], 0).call() == 1
-assert c.functions.endorsers(w3.eth.accounts[1], 0).call() == 1
-assert c.functions.endorsers(w3.eth.accounts[0], 1).call() == 2
-
-assert c.functions.tokens(1).call() == token_address
-assert c.functions.tokens(2).call() == another_token_address
-
-assert c.functions.tokenIndex(token_address).call() == 1
-assert c.functions.tokenIndex(another_token_address).call() == 2
+r = c.functions.declaration(w3.eth.accounts[2], w3.eth.accounts[0]).call()
+assert r[0].hex() == declarations[1][0][2:]
+assert r[1].hex() == declarations[1][1][2:]
 
 
+# Add first declaration for 1 by 2
+c.functions.addDeclaration(w3.eth.accounts[1], declarations[2][0]).transact({'from': w3.eth.accounts[2]})
+
+r = c.functions.declaratorCount(w3.eth.accounts[0]).call()
+assert r == 2
+
+r = c.functions.declaratorCount(w3.eth.accounts[1]).call()
+assert r == 1
+
+r = c.functions.declarator(w3.eth.accounts[1], 0).call()
+assert r == w3.eth.accounts[2]
+
+r = c.functions.declaration(w3.eth.accounts[2], w3.eth.accounts[1]).call()
+assert r[0].hex() == declarations[2][0][2:]
+

solidity/tokenendorser_test.py

@@ -0,0 +1,78 @@
+import logging
+import os
+import json
+import hashlib
+
+import web3
+import eth_tester
+
+logging.basicConfig(level=logging.DEBUG)
+logg = logging.getLogger()
+
+
+eth_params = eth_tester.backends.pyevm.main.get_default_genesis_params({
+    'gas_limit': 9000000,
+    })
+backend = eth_tester.PyEVMBackend(eth_params)
+instance = eth_tester.EthereumTester(backend)
+provider = web3.Web3.EthereumTesterProvider(instance)
+w3 = web3.Web3(provider)
+
+
+f = open('TokenEndorser.bin', 'r')
+bytecode = f.read()
+f.close()
+
+f = open('TokenEndorser.json', 'r')
+abi = json.load(f)
+f.close()
+
+token_address = web3.Web3.toChecksumAddress('0x' + os.urandom(20).hex())
+
+c = w3.eth.contract(abi=abi, bytecode=bytecode)
+tx_hash = c.constructor().transact({'from': w3.eth.accounts[0]})
+r = w3.eth.getTransactionReceipt(tx_hash)
+logg.debug('contract {} initial token {}'.format(r.contractAddress, token_address))
+
+c = w3.eth.contract(abi=abi, address=r.contractAddress)
+d = '0x' + os.urandom(32).hex()
+
+# Initial token will fail in any case
+c.functions.add(token_address, d).transact({'from':w3.eth.accounts[0]})
+
+fail = False
+try:
+    c.functions.add(token_address, d).transact({'from':w3.eth.accounts[0]})
+except:
+    fail = True
+    pass
+
+if not fail:
+    raise RuntimeError('expected fail on register same token to same address')
+
+
+c.functions.add(token_address, d).transact({'from':w3.eth.accounts[1]})
+
+
+h = hashlib.new('sha256')
+h.update(bytes.fromhex(token_address[2:]))
+h.update(bytes.fromhex(w3.eth.accounts[0][2:]))
+z = h.digest()
+
+assert d[2:] == c.functions.endorsement(z.hex()).call().hex()
+
+
+another_token_address = web3.Web3.toChecksumAddress('0x' + os.urandom(20).hex())
+c.functions.add(another_token_address, d).transact({'from':w3.eth.accounts[0]})
+
+assert c.functions.endorsers(w3.eth.accounts[0], 0).call() == 1
+assert c.functions.endorsers(w3.eth.accounts[1], 0).call() == 1
+assert c.functions.endorsers(w3.eth.accounts[0], 1).call() == 2
+
+assert c.functions.tokens(1).call() == token_address
+assert c.functions.tokens(2).call() == another_token_address
+
+assert c.functions.tokenIndex(token_address).call() == 1
+assert c.functions.tokenIndex(another_token_address).call() == 2
+
+