src/apps/ethereum: refactor networks module

src/apps/ethereum/layout.py

@@ -60,7 +60,7 @@ def format_ethereum_amount(value: int, token, chain_id: int, tx_type=None):
         suffix = token[2]
         decimals = token[3]
     else:
-        suffix = networks.suffix_by_chain_id(chain_id, tx_type)
+        suffix = networks.shortcut_by_chain_id(chain_id, tx_type)
         decimals = 18
 
     if value <= 1e9:

src/apps/ethereum/networks.py

@@ -1,19 +1,148 @@
-suffixes = {
-    1: 'ETH',    # Ethereum Mainnet
-    2: 'EXP',    # Expanse
-    3: 'tETH',   # Ethereum Testnet: Ropsten
-    4: 'tETH',   # Ethereum Testnet: Rinkeby
-    8: 'UBQ',    # UBIQ
-    30: 'RSK',   # Rootstock Mainnet
-    31: 'tRSK',  # Rootstock Testnet
-    42: 'tETH',  # Ethereum Testnet: Kovan
-    61: 'ETC',   # Ethereum Classic Mainnet
-    62: 'tETC',  # Ethereum Classic Testnet
-}
+class NetworkInfo:
+
+    def __init__(
+        self,
+        chain_id: int,
+        slip44: int,
+        shortcut: str,
+        name: str,
+        rskip60: bool
+    ):
+        self.chain_id = chain_id
+        self.slip44 = slip44
+        self.shortcut = shortcut
+        self.name = name
+        self.rskip60 = rskip60
 
 
-def suffix_by_chain_id(chain_id, tx_type=None):
+# the following list is generated using tools/codegen/gen_eth_networks.py
+# do not edit manually!
+NETWORKS = [
+    NetworkInfo(
+        chain_id=1,
+        slip44=60,
+        shortcut='ETH',
+        name='Ethereum',
+        rskip60=False,
+    ),
+    NetworkInfo(
+        chain_id=2,
+        slip44=40,
+        shortcut='EXP',
+        name='Expanse',
+        rskip60=False,
+    ),
+    NetworkInfo(
+        chain_id=3,
+        slip44=1,
+        shortcut='tETH',
+        name='Ethereum Testnet Ropsten',
+        rskip60=False,
+    ),
+    NetworkInfo(
+        chain_id=4,
+        slip44=1,
+        shortcut='tETH',
+        name='Ethereum Testnet Rinkeby',
+        rskip60=False,
+    ),
+    NetworkInfo(
+        chain_id=8,
+        slip44=108,
+        shortcut='UBQ',
+        name='UBIQ',
+        rskip60=False,
+    ),
+    NetworkInfo(
+        chain_id=20,
+        slip44=2018,
+        shortcut='EOSC',
+        name='EOS Classic',
+        rskip60=False,
+    ),
+    NetworkInfo(
+        chain_id=28,
+        slip44=1128,
+        shortcut='ETSC',
+        name='Ethereum Social',
+        rskip60=False,
+    ),
+    NetworkInfo(
+        chain_id=30,
+        slip44=137,
+        shortcut='RSK',
+        name='RSK',
+        rskip60=True,
+    ),
+    NetworkInfo(
+        chain_id=31,
+        slip44=1,
+        shortcut='tRSK',
+        name='RSK Testnet',
+        rskip60=True,
+    ),
+    NetworkInfo(
+        chain_id=42,
+        slip44=1,
+        shortcut='tETH',
+        name='Ethereum Testnet Kovan',
+        rskip60=False,
+    ),
+    NetworkInfo(
+        chain_id=61,
+        slip44=61,
+        shortcut='ETC',
+        name='Ethereum Classic',
+        rskip60=False,
+    ),
+    NetworkInfo(
+        chain_id=62,
+        slip44=1,
+        shortcut='tETC',
+        name='Ethereum Classic Testnet',
+        rskip60=False,
+    ),
+    NetworkInfo(
+        chain_id=64,
+        slip44=163,
+        shortcut='ELLA',
+        name='Ellaism',
+        rskip60=False,
+    ),
+    NetworkInfo(
+        chain_id=820,
+        slip44=820,
+        shortcut='CLO',
+        name='Callisto',
+        rskip60=False,
+    ),
+    NetworkInfo(
+        chain_id=1987,
+        slip44=1987,
+        shortcut='EGEM',
+        name='EtherGem',
+        rskip60=False,
+    ),
+]
+
+
+def shortcut_by_chain_id(chain_id, tx_type=None):
     if tx_type in [1, 6] and chain_id in [1, 3]:
         return 'WAN'
     else:
-        return suffixes.get(chain_id, 'UNKN')
+        n = by_chain_id(chain_id)
+        return n.shortcut if n is not None else 'UNKN'
+
+
+def by_chain_id(chain_id):
+    for n in NETWORKS:
+        if n.chain_id == chain_id:
+            return n
+    return None
+
+
+def by_slip44(slip44):
+    for n in NETWORKS:
+        if n.slip44 == slip44:
+            return n
+    return None

tools/codegen/gen_eth_networks.py

@@ -0,0 +1,14 @@
+#!/usr/bin/env python3
+import json
+
+j = json.load(open('../../vendor/trezor-common/defs/ethereum/networks.json', 'r'))
+
+print('NETWORKS = [')
+
+for n in j:
+    print('    NetworkInfo(')
+    for f in ['chain_id', 'slip44', 'shortcut', 'name', 'rskip60']:
+        print('        %s=%s,' % (f, repr(n[f])))
+    print('    ),')
+
+print(']')

vendor/trezor-common

@@ -1 +1 @@
-Subproject commit babc60a48ec95df8de0ddd11b9d7e24b0e7e1d46
+Subproject commit 57a31feb2e48ac5057761fd07e5c7b280b66b5c6