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#!/usr/bin/env python3
import io
import logging
import qrcode
import sys
from poezio import windows
from poezio.tabs import Tab
from poezio.common import safeJID
from poezio.core.structs import Command
from poezio.decorators import command_args_parser
from poezio.plugin import BasePlugin
from poezio.theming import get_theme, to_curses_attr
from poezio.windows.base_wins import Win
log = logging.getLogger(__name__)
class QrWindow(Win):
__slots__ = ('qr', 'invert', 'inverted')
str_invert = " Invert "
str_close = " Close "
def __init__(self, qr: str) -> None:
self.qr = qr
self.invert = True
self.inverted = True
def refresh(self) -> None:
self._win.erase()
# draw QR code
code = qrcode.QRCode()
code.add_data(self.qr)
out = io.StringIO()
code.print_ascii(out, invert=self.inverted)
self.addstr(" " + self.qr + "\n")
self.addstr(out.getvalue(), to_curses_attr((15, 0)))
self.addstr(" ")
col = to_curses_attr(get_theme().COLOR_TAB_NORMAL)
if self.invert:
self.addstr(self.str_invert, col)
else:
self.addstr(self.str_invert)
self.addstr(" ")
if self.invert:
self.addstr(self.str_close)
else:
self.addstr(self.str_close, col)
self._refresh()
def toggle_choice(self) -> None:
self.invert = not self.invert
def engage(self) -> bool:
if self.invert:
self.inverted = not self.inverted
return False
else:
return True
class QrTab(Tab):
plugin_commands = {} # type: Dict[str, Command]
plugin_keys = {} # type: Dict[str, Callable]
def __init__(self, core, qr):
Tab.__init__(self, core)
self.state = 'highlight'
self.text = qr
self.name = qr
self.topic_win = windows.Topic()
self.topic_win.set_message(qr)
self.qr_win = QrWindow(qr)
self.help_win = windows.HelpText(
"Choose with arrow keys and press enter")
self.key_func['^I'] = self.toggle_choice
self.key_func[' '] = self.toggle_choice
self.key_func['KEY_LEFT'] = self.toggle_choice
self.key_func['KEY_RIGHT'] = self.toggle_choice
self.key_func['^M'] = self.engage
self.resize()
self.update_commands()
self.update_keys()
def resize(self):
self.need_resize = False
self.topic_win.resize(1, self.width, 0, 0)
self.qr_win.resize(self.height-3, self.width, 1, 0)
self.help_win.resize(1, self.width, self.height-1, 0)
def refresh(self):
if self.need_resize:
self.resize()
log.debug(' TAB Refresh: %s', self.__class__.__name__)
self.refresh_tab_win()
self.info_win.refresh()
self.topic_win.refresh()
self.qr_win.refresh()
self.help_win.refresh()
def on_input(self, key, raw):
if not raw and key in self.key_func:
return self.key_func[key]()
def toggle_choice(self):
log.debug(' TAB toggle_choice: %s', self.__class__.__name__)
self.qr_win.toggle_choice()
self.refresh()
self.core.doupdate()
def engage(self):
log.debug(' TAB engage: %s', self.__class__.__name__)
if self.qr_win.engage():
self.core.close_tab(self)
else:
self.refresh()
self.core.doupdate()
class Plugin(BasePlugin):
def init(self):
self.api.add_command(
'qr',
self.command_qr,
usage='<message>',
short='Display a QR code',
help='Display a QR code of <message> in a new tab')
self.api.add_command(
'invitation',
self.command_invite,
usage='[<server>]',
short='Invite a user',
help='Generate a XEP-0401 invitation on your server or on <server> and display a QR code')
def command_qr(self, msg):
t = QrTab(self.core, msg)
self.core.add_tab(t, True)
self.core.doupdate()
def on_next(self, iq, adhoc_session):
status = iq['command']['status']
xform = iq.xml.find(
'{http://jabber.org/protocol/commands}command/{jabber:x:data}x')
if xform is not None:
form = self.core.xmpp.plugin['xep_0004'].build_form(xform)
else:
form = None
uri = None
if status == 'completed' and form:
for field in form:
log.debug(' field: %s -> %s', field['var'], field['value'])
if field['var'] == 'landing-url' and field['value']:
uri = field.get_value(convert=False)
if field['var'] == 'uri' and field['value'] and uri is None:
uri = field.get_value(convert=False)
if uri:
t = QrTab(self.core, uri)
self.core.add_tab(t, True)
self.core.doupdate()
else:
self.core.handler.next_adhoc_step(iq, adhoc_session)
@command_args_parser.quoted(0, 1, defaults=[])
def command_invite(self, args):
server = self.core.xmpp.boundjid.domain
if len(args) > 0:
server = safeJID(args[0])
session = {
'next' : self.on_next,
'error': self.core.handler.adhoc_error
}
self.core.xmpp.plugin['xep_0050'].start_command(server, 'urn:xmpp:invite#invite', session)
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