Major Refactor. See whitepaper in ./docs/

README.md

@@ -2,3 +2,42 @@
 [![Build Status](https://travis-ci.org/cranklin/crankycoin.svg?branch=master)](https://travis-ci.org/cranklin/crankycoin)
 
 Cranky Coin is a simple blockchain, cryptocurrency, wallet implementation
+
+## Getting Started
+
+```
+# apt-get install pip
+# pip install virtualenv
+# virtualenv venv
+# . venv/bin/activate
+# pip install -r requirements.txt
+# pip install -r requirements-dev.txt
+```
+
+**Generating a wallet**
+
+```
+# python run.py client
+Cranky Coin (CRNK) wallet > publickey
+```
+*copy your public key*
+```
+Cranky Coin (CRNK) wallet > privatekey
+```
+*copy your private key*
+```
+Cranky Coin (CRNK) wallet > quit
+# python ./tools/encrypt.py
+```
+*enter a secure passphrase*
+```
+Choose a passphrase:
+Re-enter your passphrase:
+```
+*enter your private key*
+```
+Secret:
+Encrypted private key:
+```
+*copy your encrypted private key*
+

config/config.yaml

@@ -2,28 +2,36 @@ user:
     public_key:
     encrypted_private_key:
     ip: "127.0.0.1"
-    block_path:
+    chain_db: "./data/chaindata.db"
+    pool_db: "./data/pool.db"
+    peer_db: "./data/peer.db"
+    max_peers: 30
+    min_peers: 10
+    queue_bind_in: "ipc:///tmp/crank_in"
+    queue_bind_out: "ipc:///tmp/crank_out"
+    queue_processing_workers: 2
 network:
     name: "Cranky Coin"
     ticker_symbol: "CRNK"
     version: 1
     initial_coins_per_block: 50
     halving_frequency: 210000
     max_transactions_per_block: 2000
-    minimum_hash_difficulty: 4
+    minimum_hash_difficulty: 1
     target_time_per_block: 600
     difficulty_adjustment_span: 500
     significant_digits: 8
+    short_chain_tolerance: 3
     full_node_port: 30013
-    nodes_url: "http://{}:{}/nodes"
-    transactions_url: "http://{}:{}/transactions"
-    block_url: "http://{}:{}/block/{}"
-    blocks_range_url: "http://{}:{}/blocks/{}/{}"
-    blocks_url: "http://{}:{}/blocks"
+    downtime_threshold: 20
+    nodes_url: "http://{}:{}/nodes/"
+    transactions_url: "http://{}:{}/transactions/{}"
+    transactions_inv_url: "http://{}:{}/transactions/block_hash/{}"
+    unconfirmed_transactions_url: "http://{}:{}/unconfirmed_tx/{}"
+    blocks_inv_url: "http://{}:{}/blocks/start/{}/end/{}"
+    blocks_url: "http://{}:{}/blocks/{}/{}"
     transaction_history_url: "http://{}:{}/address/{}/transactions"
+    inbox_url: "http://{}:{}/inbox/"
     balance_url: "http://{}:{}/address/{}/balance"
-    status_url: "http://{}:{}/status"
-    dns_seeds: []
-    seed_nodes:
-        - "127.0.0.1"
-        - "127.0.0.2"
+    status_url: "http://{}:{}/status/"
+    connect_url: "http://{}:{}/connect/"

config/init_blockchain.sql

@@ -0,0 +1,67 @@
+CREATE TABLE IF NOT EXISTS blocks(
+    hash CHAR(32) NOT NULL,
+    prevHash CHAR(32) NOT NULL,
+    merkleRoot CHAR(32) NOT NULL,
+    height INTEGER NOT NULL,
+    nonce INTEGER NOT NULL,
+    timestamp INTEGER NOT NULL,
+    version INTEGER NOT NULL,
+    branch INTEGER DEFAULT 0,
+    PRIMARY KEY (hash),
+    UNIQUE (prevHash, branch) ON CONFLICT ROLLBACK
+) WITHOUT ROWID;
+
+CREATE INDEX idx_blocks_height ON blocks(height);
+CREATE INDEX idx_blocks_prevHash ON blocks(prevHash);
+
+CREATE TABLE IF NOT EXISTS transactions(
+    hash CHAR(32) NOT NULL,
+    src CHAR(70) NOT NULL,
+    dest CHAR(70) NOT NULL,
+    amount REAL NOT NULL,
+    fee REAL NOT NULL,
+    timestamp INTEGER NOT NULL,
+    signature CHAR(32) NOT NULL,
+    type INTEGER NOT NULL,
+    blockHash CHAR(32) NOT NULL,
+    asset CHAR(32) NOT NULL,
+    data TEXT NOT NULL,
+    branch INTEGER DEFAULT 0,
+    prevHash CHAR(32) NOT NULL,
+    PRIMARY KEY (hash, branch),
+    UNIQUE (prevHash, branch) ON CONFLICT ROLLBACK
+) WITHOUT ROWID;
+
+CREATE INDEX idx_transactions_src ON transactions(src);
+CREATE INDEX idx_transactions_dest ON transactions(dest);
+CREATE INDEX idx_transactions_blockHash ON transactions(blockHash);
+CREATE INDEX idx_transactions_type_asset ON transactions(type, asset);
+
+CREATE TABLE IF NOT EXISTS branches(
+    id INTEGER PRIMARY KEY,
+    currentHash CHAR(32),
+    currentHeight INTEGER
+);
+
+--INSERT INTO branches (id, currentHash, currentHeight)
+--    VALUES (0, 'd30051890fe899813f441bd1e93d34790cbb44702668abca4cd8a380aa90e943', 1);
+--
+--INSERT INTO transactions (
+--    hash, src, dest, amount, fee, timestamp, signature, type, blockHash, asset, data, branch, prevHash) VALUES (
+--    '96409c929a70a52f1219b3eb3b064c9351f744b8e5023240013f30be572ac70a', '0',
+--    '03dd1e57d05d9cab1d8d9b727568ad951ac2d9ecd082bc36f69e021b8427812924', 50, 0, 1524038353, '', 1,
+--    'd30051890fe899813f441bd1e93d34790cbb44702668abca4cd8a380aa90e943',
+--    '29bb7eb4fa78fc709e1b8b88362b7f8cb61d9379667ad4aedc8ec9f664e16680', '', 0, '0'
+--);
+--INSERT INTO transactions (
+--    hash, src, dest, amount, fee, timestamp, signature, type, blockHash, asset, data, branch, prevHash) VALUES (
+--    'ef5a5850b5377ee4f5a4ca953ed04b35d0910e886c121b565c1c4012e26636b0', '0',
+--    '03dd1e57d05d9cab1d8d9b727568ad951ac2d9ecd082bc36f69e021b8427812924', 1000000, 0, 1524038329, '', 0,
+--    'd30051890fe899813f441bd1e93d34790cbb44702668abca4cd8a380aa90e943',
+--    '29bb7eb4fa78fc709e1b8b88362b7f8cb61d9379667ad4aedc8ec9f664e16680', '', 0, '0'
+--);
+--
+--INSERT INTO blocks (hash, prevHash, merkleRoot, height, nonce, timestamp, version, branch) VALUES (
+--    'd30051890fe899813f441bd1e93d34790cbb44702668abca4cd8a380aa90e943', '',
+--    '4f27a78679e35963289fae864d1d6ec9b26848160a0d09e6e8fcd56e9ee969b0', 1, 0, 1524041935, 1, 0
+--);

config/init_mempool.sql

@@ -0,0 +1,16 @@
+CREATE TABLE IF NOT EXISTS unconfirmed_transactions(
+    hash CHAR(32) NOT NULL,
+    src CHAR(70) NOT NULL,
+    dest CHAR(70) NOT NULL,
+    amount REAL NOT NULL,
+    fee REAL NOT NULL,
+    timestamp INTEGER NOT NULL,
+    signature CHAR(32) NOT NULL,
+    type INTEGER NOT NULL,
+    asset CHAR(32) NOT NULL,
+    data TEXT NOT NULL,
+    prevHash CHAR(32) NOT NULL,
+    PRIMARY KEY (hash)
+) WITHOUT ROWID;
+
+CREATE INDEX idx_unconfirmed_transactions_fee ON unconfirmed_transactions(fee);

config/init_peers.sql

@@ -0,0 +1,8 @@
+CREATE TABLE IF NOT EXISTS peers(
+    host CHAR(100) NOT NULL,
+    downtime INT NOT NULL,
+    PRIMARY KEY (host)
+);
+
+INSERT INTO peers (host, downtime) VALUES ('127.0.0.1', 0);
+INSERT INTO peers (host, downtime) VALUES ('127.0.0.2', 0);

crankycoin/__init__.py

@@ -1,7 +1,8 @@
-from block import *
-from blockchain import *
-from config import *
-from errors import *
-from node import *
-from transaction import *
-from wallet import *
+import logging
+import yaml
+
+with open("config/config.yaml", 'r') as ymlfile:
+    config = yaml.load(ymlfile)
+
+logging.basicConfig(level=logging.DEBUG)
+logger = logging.getLogger(__name__)