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"""
Bookmarks module
Therein the bookmark class is defined, representing one conference room.
This object is used to generate elements for both local and remote
bookmark storage. It can also parse xml Elements.
This module also defines several functions for retrieving and updating
bookmarks, both local and remote.
Poezio start scenario:
- upon inital connection, poezio will disco#info the server
- the available storage methods will be stored in the available_storage dict
(either 'pep' or 'privatexml')
- if only one is available, poezio will set the use_bookmarks_method config option
to it. If both are, it will be set to 'privatexml' (or if it was previously set, the
value will be kept).
- it will then query the preferred storages for bookmarks and cache them locally
(Bookmark objects with a method='remote' attribute)
Adding a remote bookmark:
- New Bookmark object added to the list with storage='remote'
- All bookmarks are sent to the storage selected in use_bookmarks_method
if there was an error, the user is notified.
"""
import functools
import logging
from slixmpp.plugins.xep_0048 import Bookmarks, Conference, URL
from slixmpp import JID
from poezio.common import safeJID
from poezio.config import config
log = logging.getLogger(__name__)
class Bookmark(object):
def __init__(self, jid, name=None, autojoin=False, nick=None, password=None, method='local'):
self.jid = jid
self.name = name or jid
self.autojoin = autojoin
self.nick = nick
self.password = password
self._method = method
@property
def method(self):
return self._method
@method.setter
def method(self, value):
if value not in ('local', 'remote'):
log.debug('Could not set bookmark storing method: %s', value)
return
self._method = value
def __repr__(self):
return '<%s%s|%s>' % (self.jid,
('/'+self.nick) if self.nick else '',
self.method)
def stanza(self):
"""
Generate a <conference/> stanza from the instance
"""
el = Conference()
el['name'] = self.name
el['jid'] = self.jid
el['autojoin'] = 'true' if self.autojoin else 'false'
if self.nick:
el['nick'] = self.nick
if self.password:
el['password'] = self.password
return el
def local(self):
"""Generate a str for local storage"""
local = self.jid
if self.nick:
local += '/%s' % self.nick
local += ':'
if self.password:
config.set_and_save('password', self.password, section=self.jid)
return local
@functools.singledispatch
@staticmethod
def parse(el):
"""
Generate a Bookmark object from a <conference/> element
(this is a fallback for raw XML Elements)
"""
jid = el.get('jid')
name = el.get('name')
autojoin = True if el.get('autojoin', 'false').lower() in ('true', '1') else False
nick = None
for n in el.iter('nick'):
nick = n.text
password = None
for p in el.iter('password'):
password = p.text
return Bookmark(jid, name, autojoin, nick, password, method='remote')
@staticmethod
@parse.register(Conference)
def parse_from_stanza(el):
"""
Parse a Conference element into a Bookmark object
"""
jid = el['jid']
autojoin = el['autojoin']
password = el['password']
nick = el['nick']
name = el['name']
return Bookmark(jid, name, autojoin, nick, password, method='remote')
class BookmarkList(object):
def __init__(self):
self.bookmarks = []
preferred = config.get('use_bookmarks_method').lower()
if preferred not in ('pep', 'privatexml'):
preferred = 'privatexml'
self.preferred = preferred
self.available_storage = {
'privatexml': False,
'pep': False,
}
def __getitem__(self, key):
if isinstance(key, (str, JID)):
for i in self.bookmarks:
if key == i.jid:
return i
else:
return self.bookmarks[key]
def __in__(self, key):
if isinstance(key, (str, JID)):
for bookmark in self.bookmarks:
if bookmark.jid == key:
return True
else:
return key in self.bookmarks
return False
def remove(self, key):
if isinstance(key, (str, JID)):
for i in self.bookmarks[:]:
if i.jid == key:
self.bookmarks.remove(i)
else:
self.bookmarks.remove(key)
def __iter__(self):
return iter(self.bookmarks)
def local(self):
return [bm for bm in self.bookmarks if bm.method == 'local']
def remote(self):
return [bm for bm in self.bookmarks if bm.method == 'remote']
def set(self, new):
self.bookmarks = new
def append(self, bookmark):
bookmark_exists = self[bookmark.jid]
if not bookmark_exists:
self.bookmarks.append(bookmark)
else:
self.bookmarks.remove(bookmark_exists)
self.bookmarks.append(bookmark)
def set_bookmarks_method(self, value):
if self.available_storage.get(value):
self.preferred = value
config.set_and_save('use_bookmarks_method', value)
def save_remote(self, xmpp, callback):
"""Save the remote bookmarks."""
if not any(self.available_storage.values()):
return
method = 'xep_0049' if self.preferred == 'privatexml' else 'xep_0223'
if method:
xmpp.plugin['xep_0048'].set_bookmarks(stanza_storage(self.bookmarks),
method=method,
callback=callback)
def save_local(self):
"""Save the local bookmarks."""
local = ''.join(bookmark.local() for bookmark in self if bookmark.method == 'local')
config.set_and_save('rooms', local)
def save(self, xmpp, core=None, callback=None):
"""Save all the bookmarks."""
self.save_local()
def _cb(iq):
if callback:
callback(iq)
if iq["type"] == "error" and core:
core.information('Could not save remote bookmarks.', 'Error')
elif core:
core.information('Bookmarks saved', 'Info')
if config.get('use_remote_bookmarks'):
self.save_remote(xmpp, _cb)
def get_pep(self, xmpp, callback):
"""Add the remotely stored bookmarks via pep to the list."""
def _cb(iq):
if iq['type'] == 'result':
for conf in iq['pubsub']['items']['item']['bookmarks']['conferences']:
if isinstance(conf, URL):
continue
b = Bookmark.parse(conf)
self.append(b)
if callback:
callback(iq)
xmpp.plugin['xep_0048'].get_bookmarks(method='xep_0223', callback=_cb)
def get_privatexml(self, xmpp, callback):
"""
Fetch the remote bookmarks stored via privatexml.
"""
def _cb(iq):
if iq['type'] == 'result':
for conf in iq['private']['bookmarks']['conferences']:
b = Bookmark.parse(conf)
self.append(b)
if callback:
callback(iq)
xmpp.plugin['xep_0048'].get_bookmarks(method='xep_0049', callback=_cb)
def get_remote(self, xmpp, information, callback):
"""Add the remotely stored bookmarks to the list."""
force = config.get('force_remote_bookmarks')
if xmpp.anon or not (any(self.available_storage.values()) or force):
information('No remote bookmark storage available', 'Warning')
return
if force and not any(self.available_storage.values()):
old_callback = callback
method = 'pep' if self.preferred == 'pep' else 'privatexml'
def new_callback(result):
if result['type'] != 'error':
self.available_storage[method] = True
old_callback(result)
else:
information('No remote bookmark storage available', 'Warning')
callback = new_callback
if self.preferred == 'pep':
self.get_pep(xmpp, callback=callback)
else:
self.get_privatexml(xmpp, callback=callback)
def get_local(self):
"""Add the locally stored bookmarks to the list."""
rooms = config.get('rooms')
if not rooms:
return
rooms = rooms.split(':')
for room in rooms:
jid = safeJID(room)
if jid.bare == '':
continue
if jid.resource != '':
nick = jid.resource
else:
nick = None
passwd = config.get_by_tabname('password', jid.bare, fallback=False) or None
b = Bookmark(jid.bare, autojoin=True, nick=nick, password=passwd, method='local')
self.append(b)
def stanza_storage(bookmarks):
"""Generate a <storage/> stanza with the conference elements."""
storage = Bookmarks()
for b in (b for b in bookmarks if b.method == 'remote'):
storage.append(b.stanza())
return storage
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