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-rwxr-xr-xplugins/qr.py178
1 files changed, 178 insertions, 0 deletions
diff --git a/plugins/qr.py b/plugins/qr.py
new file mode 100755
index 00000000..25530248
--- /dev/null
+++ b/plugins/qr.py
@@ -0,0 +1,178 @@
+#!/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)
+