src/apps/wallet: finish GetPublicKey UI

src/apps/wallet/get_public_key.py

@@ -1,12 +1,22 @@
 from trezor.messages.HDNodeType import HDNodeType
 from trezor.messages.PublicKey import PublicKey
+from trezor import ui
+from trezor.messages import ButtonRequestType
+from trezor.ui.text import Text
+from trezor.utils import chunks
 from apps.common import coins, seed
+from apps.common.confirm import require_confirm
+from ubinascii import hexlify
 
 
 async def get_public_key(ctx, msg):
     coin_name = msg.coin_name or 'Bitcoin'
 
-    node = await seed.derive_node(ctx, msg.address_n)
+    curve_name = msg.ecdsa_curve_name
+    if not curve_name:
+        node = await seed.derive_node(ctx, msg.address_n)
+    else:
+        node = await seed.derive_node(ctx, msg.address_n, curve_name=curve_name)
     coin = coins.by_name(coin_name)
 
     node_xpub = node.serialize_public(coin.xpub_magic)
@@ -16,4 +26,17 @@ async def get_public_key(ctx, msg):
         fingerprint=node.fingerprint(),
         chain_code=node.chain_code(),
         public_key=node.public_key())
+
+    if msg.show_display:
+        await _show_pubkey(ctx, node.public_key())
+
     return PublicKey(node=node_type, xpub=node_xpub)
+
+
+async def _show_pubkey(ctx, pubkey: bytes):
+    lines = chunks(hexlify(pubkey).decode(), 18)
+    content = Text('Confirm public key', ui.ICON_RECEIVE, ui.MONO, *lines, icon_color=ui.GREEN)
+    return await require_confirm(
+        ctx,
+        content,
+        code=ButtonRequestType.PublicKey)