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weboob-devel/modules/radiofrance/backend.py
Laurent Bachelier b4b7182960 Make Collection more safe and sane 
* Remove callbacks in Collection object
  Make Collection a "dumb" object (and also a base object,
  though it isn't very useful for now)
* Rename Path to WorkingPath, because it is more about managing state
  than being a single path.
* Rewrite almost all WorkingPath, because the code was overly
  complicated for no reason (I tried some special cases and it turned
  out that fromstring didn't handle them, and that the
  quote-escape-unquote was just unecessary). I also rewrote it to be
  more pythonic (no more lambdas and maps) and added tests.
* Require the full split path when creating a Collection. Because, come to
  think of it, an object needs an unique identifier; in the case of
  Collections, it is the full path, not only its last part.
  I might even replace the id by the full split path in the future.
* There is now only one way to get items of a Collection: calling
  iter_resources().
* Rewrite flatten_resources to iter_resources_flat(), which just calls
  iter_resources() recursively.
* Rewrite the collection part of the canalplus module. There is no more
  callback or a page calling the browser to check another page!
  The logic is only in iter_resources().
  The resulting code is not very pretty, but it should get better.
  As a bonus, avoid to reload the main XML file when we already have it
  open.
* change_path() now expects a split path and not a string.
* up/home special cases for "cd" are handled in the same place, and
  store the previous place properly (but are not yet exploitable by
  an user command).

This is a big commit but it would be hard to split it in *working*
commits.

If you read this entire commit message, I will buy you a beer.

refs #774
fixes #773
2012-03-13 22:08:45 +01:00

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# * -*- coding: utf-8 -*-
# Copyright(C) 2011-2012 Johann Broudin, Laurent Bachelier
#
# This file is part of weboob.
#
# weboob is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# weboob is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with weboob. If not, see <http://www.gnu.org/licenses/>.
from __future__ import with_statement
from weboob.capabilities.base import NotLoaded
from weboob.capabilities.video import ICapVideo
from weboob.capabilities.radio import ICapRadio, Radio, Stream, Emission
from weboob.capabilities.collection import ICapCollection, CollectionNotFound, Collection
from weboob.tools.backend import BaseBackend
from .browser import RadioFranceBrowser, RadioFranceVideo
__all__ = ['RadioFranceBackend']
class RadioFranceBackend(BaseBackend, ICapRadio, ICapCollection, ICapVideo):
NAME = 'radiofrance'
MAINTAINER = 'Laurent Bachelier'
EMAIL = 'laurent@bachelier.name'
VERSION = '0.b'
DESCRIPTION = u'Radios of Radio France: Inter, Info, Bleu, Culture, Musique, FIP, Le Mouv\''
LICENSE = 'AGPLv3+'
BROWSER = RadioFranceBrowser
_MP3_URL = u'http://mp3.live.tv-radio.com/%s/all/%s.mp3'
_MP3_HD_URL = u'http://mp3.live.tv-radio.com/%s/all/%shautdebit.mp3'
_RADIOS = {'franceinter': (u'France Inter', True),
'franceculture': (u'France Culture', True),
'franceinfo': (u'France Info', False),
'fbidf': (u'France Bleu Île-de-France (Paris)', True),
'fip': (u'FIP', True),
'francemusique': (u'France Musique', True),
'lemouv': (u'Le Mouv\'', True),
'fbalsace': (u'France Bleu Alsace (Strasbourg)', False),
'fbarmorique': (u'France Bleu Armorique (Rennes)', False),
'fbauxerre': (u'France Bleu Auxerre', False),
'fbazur': (u'France Bleu Azur (Nice)', False),
'fbbassenormandie': (u'France Bleu Basse Normandie (Caen)', False),
'fbbearn': (u'France Bleu Bearn (Pau)', False),
'fbbelfort': (u'France Bleu Belfort', False),
'fbberry': (u'France Bleu Berry (Châteauroux)', False),
'fbbesancon': (u'France Bleu Besancon', False),
'fbbourgogne': (u'France Bleu Bourgogne (Dijon)', False),
'fbbreizizel': (u'France Bleu Breiz Izel (Quimper)', False),
'fbchampagne': (u'France Bleu Champagne (Reims)', False),
'fbcotentin': (u'France Bleu Cotentin (Cherbourg)', False),
'fbcreuse': (u'France Bleu Creuse (Gueret)', False),
'fbdromeardeche': (u'France Bleu Drome Ardeche (Valence)', False),
'fbfrequenzamora': (u'France Bleu Frequenza Mora (Bastia - Corse)', False),
'fbgardlozere': (u'France Bleu Gard Lozère (Nîmes)', False),
'fbgascogne': (u'France Bleu Gascogne (Mont-de-Marsan)', False),
'fbgironde': (u'France Bleu Gironde (Bordeaux)', False),
'fbhautenormandie': (u'France Bleu Haute Normandie (Rouen)', False),
'fbherault': (u'France Bleu Hérault (Montpellier)', False),
'fbisere': (u'France Bleu Isère (Grenoble)', False),
'fblarochelle': (u'France Bleu La Rochelle', False),
'fblimousin': (u'France Bleu Limousin (Limoges)', False),
'fbloireocean': (u'France Bleu Loire Océan (Nantes)', False),
'fblorrainenord': (u'France Bleu Lorraine Nord (Metz)', False),
'fbmayenne': (u'France Bleu Mayenne (Laval)', False),
'fbnord': (u'France Bleu Nord (Lille)', False),
'fborleans': (u'France Bleu Orléans', False),
'fbpaysbasque': (u'France Bleu Pays Basque (Bayonne)', False),
'fbpaysdauvergne': (u'France Bleu Pays d\'Auvergne (Clermont-Ferrand)', False),
'fbpaysdesavoie': (u'France Bleu Pays de Savoie (Chambery)', False),
'fbperigord': (u'France Bleu Périgord (Périgueux)', False),
'fbpicardie': (u'France Bleu Picardie (Amiens)', False),
'fbpoitou': (u'France Bleu Poitou (Poitiers)', False),
'fbprovence': (u'France Bleu Provence (Aix-en-Provence)', False),
'fbroussillon': (u'France Bleu Roussillon (Perpigan)', False),
'fbsudlorraine': (u'France Bleu Sud Lorraine (Nancy)', False),
'fbtoulouse': (u'France Bleu Toulouse', False),
'fbtouraine': (u'France Bleu Touraine (Tours)', False),
'fbvaucluse': (u'France Bleu Vaucluse (Avignon)', False),
}
_PLAYERJS_RADIOS = ('franceinter',
'franceculture',
'franceinfo',
'lemouv',
)
_DIRECTJSON_RADIOS = ('lemouv', 'franceinter', )
_RSS_RADIOS = ('francemusique', )
_ANTENNA_RADIOS = ('fip', )
def iter_resources(self, objs, split_path):
if Radio in objs:
if split_path == [u'francebleu']:
for _id in sorted(self._RADIOS.iterkeys()):
if _id.startswith('fb'):
yield self.get_radio(_id)
elif len(split_path) == 0:
for _id in sorted(self._RADIOS.iterkeys()):
if not _id.startswith('fb'):
yield self.get_radio(_id)
yield Collection(['francebleu'], 'France Bleu')
else:
raise CollectionNotFound(split_path)
def iter_radios_search(self, pattern):
for radio in self.iter_resources_flat((Radio, ), []):
if pattern.lower() in radio.title.lower() or pattern.lower() in radio.description.lower():
yield radio
def get_radio(self, radio):
if not isinstance(radio, Radio):
radio = Radio(radio)
if not radio.id in self._RADIOS:
return None
title, hd = self._RADIOS[radio.id]
radio.title = title
radio.description = title
if hd:
url = self._MP3_HD_URL % (radio.id, radio.id)
else:
url = self._MP3_URL % (radio.id, radio.id)
# This should be asked demand, but is required for now as Radioob
# does not require it.
self.fillobj(radio, ('current', ))
stream = Stream(0)
stream.title = u'128kbits/s' if hd else u'32kbits/s'
stream.url = url
radio.streams = [stream]
return radio
def fill_radio(self, radio, fields):
if 'current' in fields:
artist = None
title = None
if radio.id in self._PLAYERJS_RADIOS:
title = self.browser.get_current_playerjs(radio.id)
if radio.id in self._DIRECTJSON_RADIOS:
artist, dtitle = self.browser.get_current_direct(radio.id)
if dtitle:
if title:
title = "%s [%s]" % (dtitle, title)
else:
title = dtitle
if radio.id in self._RSS_RADIOS:
title = self.browser.get_current_rss(radio.id)
if radio.id in self._ANTENNA_RADIOS:
artist, title = self.browser.get_current_antenna(radio.id)
if title:
if not radio.current or radio.current is NotLoaded:
radio.current = Emission(0)
radio.current.title = title
radio.current.artist = artist
return radio
# TODO
# http://www.franceculture.fr/recherche/key%3DYOURSEARCH%2526type%3Demission
# http://www.franceinter.fr/recherche/key%3DYOURSEARCH%2526tri%3Dpertinence%2526theme%3Ddefault%2526type%3Demission
#def search_videos(self, *args, **kwargs):
# return []
def get_video(self, _id):
with self.browser:
video = self.browser.get_video(_id)
return video
def fill_video(self, video, fields):
if 'url' in fields:
with self.browser:
video.url = self.browser.get_url(video.id)
return video
OBJECTS = {Radio: fill_radio,
RadioFranceVideo: fill_video}
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