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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
"""
Query and control an archive of messages stored on a server using
XEP-0313: Message Archive Management(MAM).
"""
import asyncio
import random
from datetime import datetime, timedelta, timezone
from slixmpp.exceptions import IqError, IqTimeout
from poezio.theming import get_theme
from poezio import tabs
from poezio import xhtml, colors
from poezio.config import config
from poezio.text_buffer import Message, TextBuffer
def add_line(tab, text_buffer: TextBuffer, text: str, str_time: str, nick: str, top: bool):
"""Adds a textual entry in the TextBuffer"""
time = datetime.strftime(str_time, '%Y-%m-%d %H:%M:%S')
time = datetime.strptime(time, '%Y-%m-%d %H:%M:%S')
time = time.replace(tzinfo=timezone.utc).astimezone(tz=None)
time = time.replace(tzinfo=None)
deterministic = config.get_by_tabname('deterministic_nick_colors',
tab.jid.bare)
if isinstance(tab, tabs.MucTab):
nick = nick.split('/')[1]
user = tab.get_user_by_name(nick)
if deterministic:
if user:
color = user.color
else:
theme = get_theme()
if theme.ccg_palette:
fg_color = colors.ccg_text_to_color(theme.ccg_palette, nick)
color = fg_color, -1
else:
mod = len(theme.LIST_COLOR_NICKNAMES)
nick_pos = int(md5(nick.encode('utf-8')).hexdigest(),
16) % mod
color = theme.LIST_COLOR_NICKNAMES[nick_pos]
else:
color = random.choice(list(xhtml.colors))
color = xhtml.colors.get(color)
color = (color, -1)
else:
nick = nick.split('/')[0]
color = get_theme().COLOR_OWN_NICK
text_buffer.add_message(
text,
time,
nick,
color,
True, # History
None, # User
False, # Highlight
top, #Top
None, # Identifier
None, # str_time
None, # Jid
)
async def query(tab, remote_jid, top, start=None, end=None, before=None):
text_buffer = tab._text_buffer
try:
iq = await tab.core.xmpp.plugin['xep_0030'].get_info(jid=remote_jid)
except (IqError, IqTimeout):
return tab.information('Failed to retrieve messages', 'Error')
if 'urn:xmpp:mam:2' not in iq['disco_info'].get_features():
return tab.core.information("%s doesn't support MAM." % remote_jid, "Info")
if top:
if isinstance(tab, tabs.MucTab):
try:
if before is not None:
results = tab.core.xmpp['xep_0313'].retrieve(jid=remote_jid,
iterator=True, reverse=before, rsm={'before':before})
else:
results = tab.core.xmpp['xep_0313'].retrieve(jid=remote_jid,
iterator=True, reverse=top, end=end)
except (IqError, IqTimeout):
return tab.core.information('Failed to retrieve messages', 'Error')
else:
try:
if before is not None:
results = tab.core.xmpp['xep_0313'].retrieve(with_jid=remote_jid,
iterator=True, reverse=before, rsm={'before':before})
else:
results = tab.core.xmpp['xep_0313'].retrieve(with_jid=remote_jid,
iterator=True, reverse=top, end=end)
except (IqError, IqTimeout):
return tab.core.information('Failed to retrieve messages', 'Error')
else:
if 'conference' in list(iq['disco_info']['identities'])[0]:
try:
results = tab.core.xmpp['xep_0313'].retrieve(jid=remote_jid,
iterator=True, reverse=top, start=start_date, end=end)
except (IqError, IqTimeout):
return tab.core.information('Failed to retrieve messages', 'Error')
else:
try:
results = tab.core.xmpp['xep_0313'].retrieve(with_jid=remote_jid,
iterator=True, reverse=top, start=start_date, end=end)
except (IqError, IqTimeout):
return tab.core.information('Failed to retrieve messages', 'Error')
msg_count = 0
msgs = []
async for rsm in results:
if top:
for msg in rsm['mam']['results']:
if msg['mam_result']['forwarded']['stanza'].xml.find(
'{%s}%s' % ('jabber:client', 'body')) is not None:
msgs.append(msg)
if msg_count == 10:
tab.query_id = 0
tab.core.refresh_window()
return
msg_count += 1
msgs.reverse()
for msg in msgs:
forwarded = msg['mam_result']['forwarded']
timestamp = forwarded['delay']['stamp']
message = forwarded['stanza']
tab.stanza_id = msg['mam_result']['id']
nick = str(message['from'])
add_line(tab, text_buffer, message['body'], timestamp, nick, top)
tab.text_win.scroll_up(len(tab.text_win.built_lines))
else:
for msg in rsm['mam']['results']:
forwarded = msg['mam_result']['forwarded']
timestamp = forwarded['delay']['stamp']
message = forwarded['stanza']
nick = str(message['from'])
add_line(tab, text_buffer, message['body'], timestamp, nick, top)
tab.core.refresh_window()
if len(msgs) == 0:
return tab.core.information('No more messages left to retrieve', 'Info')
tab.query_id = 0
def mam_scroll(tab):
remote_jid = tab.jid
text_buffer = tab._text_buffer
before = tab.stanza_id
end = datetime.now()
if isinstance(tab, tabs.MucTab) is False:
for message in text_buffer.messages:
time = message.time
if time < end:
end = time
end = end + timedelta(seconds=-1)
tzone = datetime.now().astimezone().tzinfo
end = end.replace(tzinfo=tzone).astimezone(tz=timezone.utc)
end = end.replace(tzinfo=None)
end = datetime.strftime(end, '%Y-%m-%dT%H:%M:%SZ')
top = True
pos = tab.text_win.pos
tab.text_win.pos += tab.text_win.height - 1
if tab.text_win.pos + tab.text_win.height > len(tab.text_win.built_lines):
if before is None:
asyncio.ensure_future(query(tab, remote_jid, top, end=end))
else:
asyncio.ensure_future(query(tab, remote_jid, top, before=before))
tab.query_id = 1
tab.text_win.pos = len(tab.text_win.built_lines) - tab.text_win.height
if tab.text_win.pos < 0:
tab.text_win.pos = 0
return tab.text_win.pos != pos
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