Add cic package

python-contract-interfaces/eth_writer/__init__.py

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+from .interface import *

python-contract-interfaces/eth_writer/interface.py

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+# external imports
+from chainlib.eth.tx import TxFormat
+from chainlib.eth.tx import TxFactory
+from chainlib.jsonrpc import JSONRPCRequest
+from chainlib.eth.constant import ZERO_ADDRESS
+from chainlib.eth.contract import ABIContractEncoder
+from chainlib.eth.contract import ABIContractType
+from hexathon import add_0x
+
+class EthWriter(TxFactory):
+
+    def __single_address_method(self, method, contract_address, sender_address, address, tx_format=TxFormat.JSONRPC):
+        enc = ABIContractEncoder()
+        enc.method(method)
+        enc.typ(ABIContractType.ADDRESS)
+        enc.address(address)
+        data = enc.get()
+        tx = self.template(sender_address, contract_address, use_nonce=True)
+        tx = self.set_code(tx, data)
+        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)
+
+
+    def is_writer(self, contract_address, address, sender_address=ZERO_ADDRESS, id_generator=None):
+        j = JSONRPCRequest(id_generator)
+        o = j.template()
+        o['method'] = 'eth_call'
+        enc = ABIContractEncoder()
+        enc.method('isWriter')
+        enc.typ(ABIContractType.ADDRESS)
+        enc.address(address)
+        data = add_0x(enc.get())
+        tx = self.template(sender_address, contract_address)
+        tx = self.set_code(tx, data)
+        o['params'].append(self.normalize(tx))
+        return o

python-contract-interfaces/eth_writer/unittest/__init__.py

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+from .interface import TestEthWriterInterface

python-contract-interfaces/eth_writer/unittest/base.py

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+# standard imports
+import os
+import logging
+
+# external imports
+from chainlib.eth.unittest.ethtester import EthTesterCase
+from chainlib.connection import RPCConnection
+from chainlib.eth.nonce import RPCNonceOracle
+from chainlib.eth.tx import receipt
+from chainlib.eth.tx import TxFactory
+from chainlib.eth.tx import TxFormat
+from chainlib.eth.contract import ABIContractEncoder
+from chainlib.eth.contract import ABIContractType
+from cic_contracts.unittest import bytecode
+from cic_contracts import Name
+
+# local imports
+from eth_writer import EthWriter
+
+script_dir = os.path.dirname(os.path.realpath(__file__))
+contract_dir = os.path.join(script_dir, '..', '..', 'solidity')
+
+logg = logging.getLogger(__name__)
+
+
+class TestEthWriter(EthTesterCase):
+
+    def setUp(self):
+        super(TestEthWriter, self).setUp()
+
+        self.set_method = None
+
+        self.conn = RPCConnection.connect(self.chain_spec, 'default')
+        nonce_oracle = RPCNonceOracle(self.accounts[0], self.conn)
+
+        code = bytecode(Name.WRITER)
+
+        txf = TxFactory(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+        tx = txf.template(self.accounts[0], None, use_nonce=True)
+        tx = txf.set_code(tx, code)
+        (tx_hash_hex, o) = txf.build(tx)
+        self.conn.do(o)
+        o = receipt(tx_hash_hex)
+        r = self.conn.do(o)
+        self.assertEqual(r['status'], 1)
+        self.address = r['contract_address']
+        self.contracts['writer'] = self.address
+        self.roles['publisher'] = self.accounts[0]
+        self.roles['writer'] = self.accounts[1]
+        logg.debug('published writer test contract with hash {}'.format(r))
+
+        c = EthWriter(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+        (tx_hash, o) = c.add_writer(self.address, self.accounts[0], self.accounts[0])
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+

python-contract-interfaces/eth_writer/unittest/interface.py

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+# external imports
+from chainlib.eth.unittest.ethtester import EthTesterCase
+from chainlib.connection import RPCConnection
+from chainlib.eth.nonce import RPCNonceOracle
+from chainlib.eth.tx import receipt
+
+# local imports
+from eth_writer import EthWriter
+
+
+class TestEthWriterInterface:
+
+    def test_add_delete(self):
+        writer_contract_address = self.contracts['writer']
+        publisher_address = self.roles.get('publisher')
+        writer_account = self.roles['writer']
+
+        nonce_oracle = RPCNonceOracle(self.publisher, conn=self.conn)
+        c = EthWriter(self.chain_spec, signer=self.signer, nonce_oracle=nonce_oracle)
+
+        o = c.is_writer(writer_contract_address, publisher_address, sender_address=publisher_address)
+        r = self.rpc.do(o)
+        self.assertEqual(int(r, 16), 1)
+
+        self.alice = self.accounts[1]
+        (tx_hash, o) = c.add_writer(writer_contract_address, publisher_address, writer_account)
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+
+        o = c.is_writer(writer_contract_address, writer_account, sender_address=publisher_address)
+        r = self.rpc.do(o)
+        self.assertEqual(int(r, 16), 1)
+
+        self.alice = self.accounts[1]
+        (tx_hash, o) = c.delete_writer(writer_contract_address, publisher_address, writer_account)
+        self.rpc.do(o)
+        o = receipt(tx_hash)
+        r = self.rpc.do(o)
+        self.assertEqual(r['status'], 1)
+
+        o = c.is_writer(writer_contract_address, self.alice, sender_address=publisher_address)
+        r = self.rpc.do(o)
+        self.assertEqual(int(r, 16), 0)