Mercurial > libervia-backend
annotate src/plugins/plugin_misc_radiocol.py @ 578:28331ecf0a65
misc: README cleaning + added Mutagen to credits
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Wed, 09 Jan 2013 22:31:32 +0100 |
| parents | 593331663b80 |
| children | 952322b1d490 |
| rev | line source |
|---|---|
| 450 | 1 #!/usr/bin/python |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
| 4 """ | |
| 5 SAT plugin for managing Radiocol | |
| 572 | 6 Copyright (C) 2009, 2010, 2011, 2012, 2013 Jérôme Poisson (goffi@goffi.org) |
| 450 | 7 |
| 8 This program is free software: you can redistribute it and/or modify | |
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9 it under the terms of the GNU Affero General Public License as published by |
| 450 | 10 the Free Software Foundation, either version 3 of the License, or |
| 11 (at your option) any later version. | |
| 12 | |
| 13 This program is distributed in the hope that it will be useful, | |
| 14 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
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16 GNU Affero General Public License for more details. |
| 450 | 17 |
|
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18 You should have received a copy of the GNU Affero General Public License |
| 450 | 19 along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 20 """ | |
| 21 | |
| 22 from logging import debug, info, warning, error | |
| 23 from twisted.words.xish import domish | |
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24 from twisted.internet import reactor |
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25 from twisted.words.protocols.jabber import jid |
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26 |
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27 from wokkel import disco, iwokkel |
| 450 | 28 |
| 29 from zope.interface import implements | |
| 30 | |
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31 import os.path |
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32 from os import unlink |
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33 from mutagen.oggvorbis import OggVorbis, OggVorbisHeaderError |
| 450 | 34 |
| 35 try: | |
| 36 from twisted.words.protocols.xmlstream import XMPPHandler | |
| 37 except ImportError: | |
| 38 from wokkel.subprotocols import XMPPHandler | |
| 39 | |
| 40 MESSAGE = '/message' | |
| 41 NC_RADIOCOL = 'http://www.goffi.org/protocol/radiocol' | |
| 42 RADIOC_TAG = 'radiocol' | |
| 43 RADIOC_REQUEST = MESSAGE + '/' + RADIOC_TAG + '[@xmlns="' + NC_RADIOCOL + '"]' | |
| 44 | |
| 45 PLUGIN_INFO = { | |
| 46 "name": "Radio collective plugin", | |
| 47 "import_name": "Radiocol", | |
| 48 "type": "Exp", | |
| 49 "protocols": [], | |
| 50 "dependencies": ["XEP-0045", "XEP-0249"], | |
| 51 "main": "Radiocol", | |
| 52 "handler": "yes", | |
| 53 "description": _("""Implementation of radio collective""") | |
| 54 } | |
| 55 | |
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56 QUEUE_LIMIT = 2 |
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57 |
| 450 | 58 |
| 59 class Radiocol(): | |
| 60 | |
| 61 def __init__(self, host): | |
| 62 info(_("Radio collective initialization")) | |
| 63 self.host = host | |
| 64 self.radios={} | |
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65 host.bridge.addMethod("radiocolLaunch", ".plugin", in_sign='ass', out_sign='', method=self.radiocolLaunch) |
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66 host.bridge.addMethod("radiocolCreate", ".plugin", in_sign='ss', out_sign='', method=self.radiocolCreate) |
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67 host.bridge.addMethod("radiocolSongAdded", ".plugin", in_sign='sss', out_sign='', method=self.radiocolSongAdded) |
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68 host.bridge.addSignal("radiocolStarted", ".plugin", signature='sss') #room_jid, referee, profile |
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69 host.bridge.addSignal("radiocolSongRejected", ".plugin", signature='sss') #room_jid, reason, profile |
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70 host.bridge.addSignal("radiocolPreload", ".plugin", signature='ssssss') #room_jid, filename, title, artist, album, profile |
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71 host.bridge.addSignal("radiocolPlay", ".plugin", signature='sss') #room_jid, filename, profile |
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72 host.bridge.addSignal("radiocolNoUpload", ".plugin", signature='ss') #room_jid, profile |
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73 host.bridge.addSignal("radiocolUploadOk", ".plugin", signature='ss') #room_jid, profile |
| 450 | 74 host.trigger.add("MUC user joined", self.userJoinedTrigger) |
| 75 | |
| 76 def createRadiocolElt(self, to_jid, type="normal"): | |
| 77 type = "normal" if to_jid.resource else "groupchat" | |
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78 elt = domish.Element((None,'message')) |
| 450 | 79 elt["to"] = to_jid.full() |
| 80 elt["type"] = type | |
| 81 elt.addElement((NC_RADIOCOL, RADIOC_TAG)) | |
| 82 return elt | |
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83 |
| 450 | 84 def __create_started_elt(self): |
| 85 """Create a game_started domish element""" | |
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86 started_elt = domish.Element((None,'started')) |
| 450 | 87 return started_elt |
| 88 | |
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89 def __create_preload_elt(self, sender, filename, title, artist, album): |
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90 preload_elt = domish.Element((None,'preload')) |
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91 preload_elt['sender'] = sender |
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92 preload_elt['filename'] = filename #XXX: the frontend should know the temporary directory where file is put |
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93 preload_elt['title'] = title |
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94 preload_elt['artist'] = artist |
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95 preload_elt['album'] = album |
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96 return preload_elt |
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97 |
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98 |
| 450 | 99 def userJoinedTrigger(self, room, user, profile): |
| 100 """This trigger is used to check if we are waiting people in this room, | |
| 101 and to create a game if everybody is here""" | |
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102 room_jid = room.occupantJID.userhost() |
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103 if self.radios.has_key(room_jid) and self.radios[room_jid]["referee"] == room.occupantJID.full(): |
| 450 | 104 #we are in a radiocol room, let's start the party ! |
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105 mess = self.createRadiocolElt(jid.JID(room_jid+'/'+user.nick)) |
| 450 | 106 mess.firstChildElement().addChild(self.__create_started_elt()) |
| 107 self.host.profiles[profile].xmlstream.send(mess) | |
| 108 return True | |
| 109 | |
| 110 def radiocolLaunch(self, occupants, profile_key='@DEFAULT@'): | |
| 111 """Launch a game: helper method to create a room, invite occupants, and create the radiocol | |
| 112 @param occupants: list for occupants jid""" | |
| 113 debug(_('Launching radiocol')) | |
| 114 profile = self.host.memory.getProfileName(profile_key) | |
| 115 if not profile: | |
| 116 error(_("Unknown profile")) | |
| 117 return | |
| 118 | |
| 119 def radiocolRoomJoined(room): | |
| 120 print "radiocolRoomJoined" | |
| 121 _room_jid = room.occupantJID.userhostJID() | |
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122 self.radiocolCreate(_room_jid.userhost(), profile_key=profile) |
| 450 | 123 for occupant in occupants: |
| 124 self.host.plugins["XEP-0249"].invite(jid.JID(occupant), room.occupantJID.userhostJID(), {"game":"Radiocol"}, profile) | |
| 125 | |
| 126 def after_init(ignore): | |
| 127 room_name = "sat_radiocol_%s" % self.host.plugins["XEP-0045"].getUniqueName(profile_key) | |
| 128 print "\n\n===> room_name:", room_name | |
| 129 muc_service = None | |
| 130 for service in self.host.memory.getServerServiceEntities("conference", "text", profile): | |
| 131 if not ".irc." in service.userhost(): | |
| 132 #FIXME: | |
| 133 #This awfull ugly hack is here to avoid an issue with openfire: the irc gateway | |
| 134 #use "conference/text" identity (instead of "conference/irc"), there is certainly a better way | |
| 135 #to manage this, but this hack fill do it for test purpose | |
| 136 muc_service = service | |
| 137 break | |
| 138 if not muc_service: | |
| 139 error(_("Can't find a MUC service")) | |
| 140 return | |
| 141 | |
| 142 _jid, xmlstream = self.host.getJidNStream(profile) | |
| 143 d = self.host.plugins["XEP-0045"].join(jid.JID("%s@%s" % (room_name, muc_service.userhost())), _jid.user, {}, profile) | |
| 144 d.addCallback(radiocolRoomJoined) | |
| 145 | |
| 146 client = self.host.getClient(profile) | |
| 147 if not client: | |
| 148 error(_('No client for this profile key: %s') % profile_key) | |
| 149 return | |
| 150 client.client_initialized.addCallback(after_init) | |
| 151 | |
| 152 def radiocolCreate(self, room_jid_param, profile_key='@DEFAULT@'): | |
| 153 """Create a new game | |
| 154 @param room_jid_param: jid of the room | |
| 155 @param profile_key: %(doc_profile_key)s""" | |
| 156 debug (_("Creating Radiocol")) | |
| 157 room_jid = jid.JID(room_jid_param) | |
| 158 profile = self.host.memory.getProfileName(profile_key) | |
| 159 if not profile: | |
| 160 error (_("profile %s is unknown") % profile_key) | |
| 161 return | |
| 162 if self.radios.has_key(room_jid): | |
| 163 warning (_("Radiocol already started in room %s") % room_jid.userhost()) | |
| 164 else: | |
| 165 room_nick = self.host.plugins["XEP-0045"].getRoomNick(room_jid.userhost(), profile) | |
| 166 if not room_nick: | |
| 167 error ('Internal error') | |
| 168 return | |
| 169 referee = room_jid.userhost() + '/' + room_nick | |
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170 self.radios[room_jid.userhost()] = {'referee':referee, 'queue':[], 'upload':True, 'playing': False, 'occupants_data':{}, 'to_delete':{}} |
| 450 | 171 mess = self.createRadiocolElt(jid.JID(room_jid.userhost())) |
| 172 mess.firstChildElement().addChild(self.__create_started_elt()) | |
| 173 self.host.profiles[profile].xmlstream.send(mess) | |
| 174 | |
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175 def radiocolSongAdded(self, referee, song_path, profile): |
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176 """This method is called by libervia when a song has been uploaded |
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177 @param room_jid_param: jid of the room |
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178 @song_path: absolute path of the song added |
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179 @param profile_key: %(doc_profile_key)s""" |
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180 #XXX: this is a Q&D way for the proof of concept. In the future, the song should |
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181 # be streamed to the backend using XMPP file copy |
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182 # Here we cheat because we know we are on the same host, and we don't |
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183 # check data. Referee will have to parse the song himself to check it |
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184 client = self.host.getClient(profile) |
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185 if not client: |
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186 error(_("Can't access profile's data")) |
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187 return |
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188 try: |
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189 song = OggVorbis(song_path) |
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190 except OggVorbisHeaderError: |
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191 #this file is not ogg vorbis, we reject it |
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192 unlink(song_path) # FIXME: same host trick (see note above) |
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193 self.host.bridge.radiocolSongRejected(jid.JID(referee).userhost(), \ |
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194 "Uploaded file is not Ogg Vorbis song, only Ogg Vorbis songs are acceptable", profile) |
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195 """mess = self.createRadiocolElt(jid.JID(referee)) |
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196 reject_elt = mess.firstChildElement().addElement(('','song_rejected')) |
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197 reject_elt['sender'] = client.jid |
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198 reject_elt['reason'] = "Uploaded file is not Ogg Vorbis song, only Ogg Vorbis songs are acceptable" |
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199 #FIXME: add an error code |
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200 self.host.profiles[profile].xmlstream.send(mess)""" |
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201 return |
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202 title = song.get("title", ["Unknown"])[0] |
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203 artist = song.get("artist", ["Unknown"])[0] |
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204 album = song.get("album", ["Unknown"])[0] |
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205 length = song.info.length |
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206 mess = self.createRadiocolElt(jid.JID(referee)) |
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207 added_elt = mess.firstChildElement().addElement(('','song_added')) |
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208 added_elt['filename'] = filename = os.path.basename(song_path) |
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209 added_elt['title'] = title |
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210 added_elt['artist'] = artist |
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211 added_elt['album'] = album |
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212 added_elt['length'] = str(length) |
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213 self.host.profiles[profile].xmlstream.send(mess) |
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214 |
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215 radio_data = self.radios[jid.JID(referee).userhost()] #FIXME: referee comes from Libervia's client side, it's unsecure |
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216 radio_data['to_delete'][filename] = song_path #FIXME: works only because of the same host trick, see the note under the docstring |
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217 |
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218 def playNext(self, room_jid, profile): |
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219 """"Play next sont in queue if exists, and put a timer |
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220 which trigger after the song has been played to play next one""" |
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221 #TODO: need to check that there are still peoples in the room |
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222 # and clean the datas/stop the playlist if it's not the case |
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223 #TODO: songs need to be erased once played or found invalids |
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224 # ==> unlink done the Q&D way with the same host trick (see above) |
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225 radio_data = self.radios[room_jid.userhost()] |
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226 queue = radio_data['queue'] |
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227 if not queue: |
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228 #nothing left to play, we need to wait for uploads |
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229 radio_data['playing'] = False |
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230 return |
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231 |
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232 filename, length = queue.pop(0) |
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233 mess = self.createRadiocolElt(room_jid) |
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234 play_elt = mess.firstChildElement().addElement(('','play')) |
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235 play_elt['filename'] = filename |
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236 self.host.profiles[profile].xmlstream.send(mess) |
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237 |
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238 if not radio_data['upload'] and len(queue) < QUEUE_LIMIT: |
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239 #upload is blocked and we now have resources to get more, we reactivate it |
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240 mess = self.createRadiocolElt(room_jid) |
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241 no_upload_elt = mess.firstChildElement().addElement(('','upload_ok')) |
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242 self.host.profiles[profile].xmlstream.send(mess) |
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243 radio_data['upload'] = True |
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244 |
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245 reactor.callLater(length, self.playNext, room_jid, profile) |
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246 try: |
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247 file_to_delete = radio_data['to_delete'][filename] |
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248 except KeyError: |
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249 error(_("INTERNAL ERROR: can't find full path of the song to delete")) |
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250 return |
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251 |
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252 #we wait more than the song length to delete the file, to manage poorly reactive networks/clients |
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253 reactor.callLater(length + 90, unlink, file_to_delete) #FIXME: same host trick (see above) |
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254 |
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255 |
| 450 | 256 def radiocol_game_cmd(self, mess_elt, profile): |
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257 #FIXME: we should check sender (is it referee ?) here before accepting commands |
| 450 | 258 from_jid = jid.JID(mess_elt['from']) |
| 259 room_jid = jid.JID(from_jid.userhost()) | |
| 260 radio_elt = mess_elt.firstChildElement() | |
| 261 radio_data = self.radios[room_jid.userhost()] | |
| 262 occupants_data = radio_data['occupants_data'] | |
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263 queue = radio_data['queue'] |
| 450 | 264 |
| 265 for elt in radio_elt.elements(): | |
| 266 | |
| 267 if elt.name == 'started': #new game created | |
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268 self.host.bridge.radiocolStarted(room_jid.userhost(), from_jid.full(), profile) |
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269 elif elt.name == 'preload': #a song is in queue and must be preloaded |
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270 self.host.bridge.radiocolPreload(room_jid.userhost(), elt['filename'], elt['title'], elt['artist'], elt['album'], profile) |
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271 elif elt.name == 'play': |
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272 self.host.bridge.radiocolPlay(room_jid.userhost(), elt['filename'], profile) |
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273 elif elt.name == 'song_rejected': #a song has been refused |
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274 self.host.bridge.radiocolSongRejected(room_jid.userhost(), elt['reason'], profile) |
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275 elif elt.name == 'no_upload': |
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276 self.host.bridge.radiocolNoUpload(room_jid.userhost(), profile) |
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277 elif elt.name == 'upload_ok': |
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278 self.host.bridge.radiocolUploadOk(room_jid.userhost(), profile) |
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279 elif elt.name == 'song_added': #a song has been added |
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280 #FIXME: we are KISS for the proof of concept: every song is added, to a limit of 3 in queue. |
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281 # Need to manage some sort of rules to allow peoples to send songs |
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282 |
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283 if len(queue) >= QUEUE_LIMIT: |
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284 #there are already too many songs in queue, we reject this one |
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285 mess = self.createRadiocolElt(room_jid) |
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286 reject_elt = mess.firstChildElement().addElement(('','song_rejected')) |
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287 reject_elt['sender'] = from_jid.resource |
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288 reject_elt['reason'] = "Too many songs in queue" |
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289 #FIXME: add an error code |
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290 self.host.profiles[profile].xmlstream.send(mess) |
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291 return |
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292 |
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293 #The song is accepted and added in queue |
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294 queue.append((elt['filename'], float(elt['length']))) |
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295 |
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296 if len(queue) >= QUEUE_LIMIT: |
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297 #We are at the limit, we refuse new upload until next play |
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298 mess = self.createRadiocolElt(room_jid) |
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299 no_upload_elt = mess.firstChildElement().addElement(('','no_upload')) |
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300 #FIXME: add an error code |
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301 self.host.profiles[profile].xmlstream.send(mess) |
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302 radio_data['upload'] = False |
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303 |
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304 |
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305 mess = self.createRadiocolElt(room_jid) |
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306 preload_elt = self.__create_preload_elt(from_jid.resource, |
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307 elt['filename'], |
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308 elt['title'], |
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309 elt['artist'], |
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310 elt['album']) |
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311 mess.firstChildElement().addChild(preload_elt) |
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312 self.host.profiles[profile].xmlstream.send(mess) |
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313 if not radio_data['playing'] and len(queue) == 2: |
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314 #we have not started playing yet, and we have 2 songs in queue |
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315 #we can now start the party :) |
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316 radio_data['playing'] = True |
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317 self.playNext(room_jid, profile) |
| 450 | 318 else: |
| 319 error (_('Unmanaged game element: %s') % elt.name) | |
| 320 | |
| 321 def getHandler(self, profile): | |
| 322 return RadiocolHandler(self) | |
| 323 | |
| 324 class RadiocolHandler (XMPPHandler): | |
| 325 implements(iwokkel.IDisco) | |
| 326 | |
| 327 def __init__(self, plugin_parent): | |
| 328 self.plugin_parent = plugin_parent | |
| 329 self.host = plugin_parent.host | |
| 330 | |
| 331 def connectionInitialized(self): | |
| 332 self.xmlstream.addObserver(RADIOC_REQUEST, self.plugin_parent.radiocol_game_cmd, profile = self.parent.profile) | |
| 333 | |
| 334 def getDiscoInfo(self, requestor, target, nodeIdentifier=''): | |
| 335 return [disco.DiscoFeature(NC_RADIOCOL)] | |
| 336 | |
| 337 def getDiscoItems(self, requestor, target, nodeIdentifier=''): | |
| 338 return [] | |
| 339 |