Show QR code when exploring addresses
This commit is contained in:
Peter D. Gray
parent
69fdc4b805
commit
240fc65775
@ -9,6 +9,7 @@ import chains, stash
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from ux import ux_show_story, the_ux, ux_confirm
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from actions import goto_top_menu
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from menu import MenuSystem, MenuItem, start_chooser
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from public_constants import AFC_BECH32
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SCREEN_CHAR_WIDTH = const(16)
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@ -71,11 +72,13 @@ async def choose_first_address(*a):
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async def show_n_addresses(path, addr_fmt, start, n):
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# Displays n addresses from start
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from main import dis
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import version
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def make_msg(start):
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msg = "Press 1 to save to MicroSD.\n\n"
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msg += "Addresses %d..%d:\n\n" % (start, start + n - 1)
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addrs = []
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chain = chains.current_chain()
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dis.fullscreen('Wait...')
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@ -85,38 +88,48 @@ async def show_n_addresses(path, addr_fmt, start, n):
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for idx in range(start, start + n):
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subpath = path.format(account=0, change=0, idx=idx)
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node = sv.derive_path(subpath, register=False)
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msg += "%s =>\n%s\n\n" % (subpath, chain.address(node, addr_fmt))
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addr = chain.address(node, addr_fmt)
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addrs.append(addr)
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msg += "%s =>\n%s\n\n" % (subpath, addr)
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dis.progress_bar_show(idx/n)
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stash.blank_object(node)
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if version.has_fatram:
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msg += "Press 4 to view QR Code. "
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msg += "Press 9 to see next group, 7 to go back. X to quit."
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return msg
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return msg, addrs
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msg = make_msg(start)
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msg, addrs = make_msg(start)
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while 1:
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ch = await ux_show_story(msg, escape='179')
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ch = await ux_show_story(msg, escape='1479')
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if ch == '1':
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# save addresses to MicroSD signal
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await make_address_summary_file(path, addr_fmt)
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# .. continue on same screen in case they want to write to multiple cards
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if ch == '1':
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# save addresses to MicroSD signal
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await make_address_summary_file(path, addr_fmt)
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# .. continue on same screen in case they want to write to multiple cards
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if ch == 'x':
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return
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if ch == 'x':
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return
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if ch == '7' and start>0:
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# go backwards in explorer
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start -= n
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msg = make_msg(start)
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if ch == '4':
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if not version.has_fatram: continue
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await show_address_qr(addrs, (addr_fmt & AFC_BECH32), start)
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continue
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if ch == '9':
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# go forwards
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start += n
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msg = make_msg(start)
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if ch == '7' and start>0:
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# go backwards in explorer
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start -= n
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elif ch == '9':
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# go forwards
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start += n
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msg, addrs = make_msg(start)
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def generate_address_csv(path, addr_fmt, n):
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# Produce CSV file contents as a generator
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@ -200,4 +213,106 @@ Press 4 to start.''', escape='4')
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await show_n_addresses(path, addr_fmt, 0, 10)
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async def show_address_qr(addrs, is_segwit, start_n):
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# show a QR code for the address. can only work on Mk3
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# Version 2 would be nice, but can't hold what we need, even at min error correction,
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# so we are forced into version 3 = 29x29 pixels
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# - see <https://www.qrcode.com/en/about/version.html>
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# - to display 29x29 pixels, we have to double them up: 58x58
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# - not really providing enough space around it
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# - inverted QR (black/white swap) still readable by scanners, altho wrong
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from utils import imported
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from display import FontSmall, FontTiny
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import uQR as uqr
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from main import dis
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idx = 0 # start with first address
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invert = False # looks better, but neither mode is ideal
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addr = addrs[idx]
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def render(addr):
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dis.busy_bar(True)
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with imported('uQR') as uqr:
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if is_segwit:
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# targeting 'alpha numeric' mode, typical len is 42
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ec = uqr.ERROR_CORRECT_Q
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assert len(addr) <= 47
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else:
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# has to be 'binary' mode, altho shorter msg, typical 34-36
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ec = uqr.ERROR_CORRECT_M
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assert len(addr) <= 42
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q = uqr.QRCode(version=3, box_size=1, border=0, mask_pattern=3, error_correction=ec)
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if is_segwit:
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here = uqr.QRData(addr.upper().encode('ascii'),
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mode=uqr.MODE_ALPHA_NUM, check_data=False)
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else:
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here = uqr.QRData(addr.encode('ascii'), mode=uqr.MODE_8BIT_BYTE, check_data=False)
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q.add_data(here)
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q.make(fit=False)
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return q.get_matrix()
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data = render(addr)
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def redraw():
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dis.clear()
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w = 29 # because version=3
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XO,YO = 7, 3 # offsets
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if not invert:
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dis.dis.fill_rect(XO-YO, 0, 64, 64, 1)
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for x in range(w):
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for y in range(w):
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px = data[x][y]
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X = (x*2) + XO
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Y = (y*2) + YO
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dis.dis.fill_rect(X,Y, 2,2, px if invert else (not px))
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x, y = 73, 0 if is_segwit else 2
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ll = 7 # per line
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for i in range(0, len(addr), ll):
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dis.text(x, y, addr[i:i+ll], FontSmall)
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y += 10 if is_segwit else 12
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if not invert:
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# show path number, very tiny
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ai = str(start_n + idx)
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if len(ai) == 1:
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dis.text(0, 30, ai[0], FontTiny)
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else:
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dis.text(0, 27, ai[0], FontTiny)
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dis.text(0, 27+7, ai[1], FontTiny)
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dis.busy_bar(False) # includes show
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redraw()
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from ux import ux_wait_keyup
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while 1:
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ch = await ux_wait_keyup()
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if ch == '1':
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invert = not invert
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redraw()
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continue
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elif ch in 'xy':
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return
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if ch == '5' or ch == '7':
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if idx > 0:
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idx -= 1
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elif ch == '8' or ch == '9':
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if idx != len(addrs)-1:
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idx += 1
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addr = addrs[idx]
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data = render(addr)
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redraw()
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# EOF
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@ -1,4 +1,7 @@
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# from https://github.com/JASchilz/uQR/blob/master/uQR.py @ 0d105634841368ef0b1bb210a63c48e4b50a9a94
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#
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# Please see <https://github.com/JASchilz/uQR/blob/master/LICENSE> for BSD-style license.
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#
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import ure as re
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"""
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@ -17,10 +20,10 @@ Formerly in constants.py
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"""
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# QR error correct levels
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ERROR_CORRECT_L = 1
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ERROR_CORRECT_M = 0
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ERROR_CORRECT_Q = 3
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ERROR_CORRECT_H = 2
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ERROR_CORRECT_L = const(1)
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ERROR_CORRECT_M = const(0)
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ERROR_CORRECT_Q = const(3)
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ERROR_CORRECT_H = const(2)
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"""
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LUT
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@ -1022,7 +1025,7 @@ def create_data(version, error_correction, data_list):
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bit_limit += block.data_count * 8
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if len(buffer) > bit_limit:
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raise exceptions.DataOverflowError(
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raise DataOverflowError(
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"Code length overflow. Data size (%s) > size available (%s)" %
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(len(buffer), bit_limit))
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@ -18,15 +18,17 @@ if '-s' in sys.argv:
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numpad.inject('4')
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numpad.inject('y')
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if '-a' in sys.argv:
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if '--addr' in sys.argv:
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# Address Explorer
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from main import numpad
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numpad.inject('4')
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numpad.inject('y')
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numpad.inject('4')
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numpad.inject('8')
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numpad.inject('8')
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numpad.inject('y')
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numpad.inject('y')
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numpad.inject('4') # skips warning!
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if '--dz' in sys.argv:
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# Enter the "Danger Zone"
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@ -36,6 +38,7 @@ if '--dz' in sys.argv:
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numpad.inject('4')
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numpad.inject('8')
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numpad.inject('8')
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numpad.inject('8')
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numpad.inject('y')
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if '--xw' in sys.argv:
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