Mercurial > libervia-backend
annotate src/plugins/plugin_misc_radiocol.py @ 606:21ddafccf32d
installation: added forgotten imaging dependency
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sat, 23 Feb 2013 17:50:58 +0100 |
| parents | e629371a28d3 |
| children | 84a6e83157c2 |
| rev | line source |
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| 450 | 1 #!/usr/bin/python |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
| 4 """ | |
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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 = { | |
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46 "name": "Radio collective plugin", |
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47 "import_name": "Radiocol", |
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48 "type": "Exp", |
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49 "protocols": [], |
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50 "dependencies": ["XEP-0045", "XEP-0249"], |
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51 "main": "Radiocol", |
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52 "handler": "yes", |
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53 "description": _("""Implementation of radio collective""") |
| 450 | 54 } |
| 55 | |
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56 QUEUE_LIMIT = 2 |
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57 |
| 450 | 58 |
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59 class Radiocol(object): |
| 450 | 60 |
| 61 def __init__(self, host): | |
| 62 info(_("Radio collective initialization")) | |
| 63 self.host = host | |
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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 |
| 450 | 98 def userJoinedTrigger(self, room, user, profile): |
| 99 """This trigger is used to check if we are waiting people in this room, | |
| 100 and to create a game if everybody is here""" | |
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101 room_jid = room.occupantJID.userhost() |
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102 if room_jid in self.radios and self.radios[room_jid]["referee"] == room.occupantJID.full(): |
| 450 | 103 #we are in a radiocol room, let's start the party ! |
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104 mess = self.createRadiocolElt(jid.JID(room_jid + '/' + user.nick)) |
| 450 | 105 mess.firstChildElement().addChild(self.__create_started_elt()) |
| 106 self.host.profiles[profile].xmlstream.send(mess) | |
| 107 return True | |
| 108 | |
| 109 def radiocolLaunch(self, occupants, profile_key='@DEFAULT@'): | |
| 110 """Launch a game: helper method to create a room, invite occupants, and create the radiocol | |
| 111 @param occupants: list for occupants jid""" | |
| 112 debug(_('Launching radiocol')) | |
| 113 profile = self.host.memory.getProfileName(profile_key) | |
| 114 if not profile: | |
| 115 error(_("Unknown profile")) | |
| 116 return | |
| 117 | |
| 118 def radiocolRoomJoined(room): | |
| 119 print "radiocolRoomJoined" | |
| 120 _room_jid = room.occupantJID.userhostJID() | |
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121 self.radiocolCreate(_room_jid.userhost(), profile_key=profile) |
| 450 | 122 for occupant in occupants: |
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123 self.host.plugins["XEP-0249"].invite(jid.JID(occupant), room.occupantJID.userhostJID(), {"game": "Radiocol"}, profile) |
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124 |
| 450 | 125 def after_init(ignore): |
| 126 room_name = "sat_radiocol_%s" % self.host.plugins["XEP-0045"].getUniqueName(profile_key) | |
| 127 print "\n\n===> room_name:", room_name | |
| 128 muc_service = None | |
| 129 for service in self.host.memory.getServerServiceEntities("conference", "text", profile): | |
| 130 if not ".irc." in service.userhost(): | |
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131 #FIXME: |
| 450 | 132 #This awfull ugly hack is here to avoid an issue with openfire: the irc gateway |
| 133 #use "conference/text" identity (instead of "conference/irc"), there is certainly a better way | |
| 134 #to manage this, but this hack fill do it for test purpose | |
| 135 muc_service = service | |
| 136 break | |
| 137 if not muc_service: | |
| 138 error(_("Can't find a MUC service")) | |
| 139 return | |
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140 |
| 450 | 141 _jid, xmlstream = self.host.getJidNStream(profile) |
| 142 d = self.host.plugins["XEP-0045"].join(jid.JID("%s@%s" % (room_name, muc_service.userhost())), _jid.user, {}, profile) | |
| 143 d.addCallback(radiocolRoomJoined) | |
| 144 | |
| 145 client = self.host.getClient(profile) | |
| 146 if not client: | |
| 147 error(_('No client for this profile key: %s') % profile_key) | |
| 148 return | |
| 149 client.client_initialized.addCallback(after_init) | |
| 150 | |
| 151 def radiocolCreate(self, room_jid_param, profile_key='@DEFAULT@'): | |
| 152 """Create a new game | |
| 153 @param room_jid_param: jid of the room | |
| 154 @param profile_key: %(doc_profile_key)s""" | |
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155 debug(_("Creating Radiocol")) |
| 450 | 156 room_jid = jid.JID(room_jid_param) |
| 157 profile = self.host.memory.getProfileName(profile_key) | |
| 158 if not profile: | |
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159 error(_("profile %s is unknown") % profile_key) |
| 450 | 160 return |
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161 if room_jid in self.radios: |
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162 warning(_("Radiocol already started in room %s") % room_jid.userhost()) |
| 450 | 163 else: |
| 164 room_nick = self.host.plugins["XEP-0045"].getRoomNick(room_jid.userhost(), profile) | |
| 165 if not room_nick: | |
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166 error('Internal error') |
| 450 | 167 return |
| 168 referee = room_jid.userhost() + '/' + room_nick | |
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169 self.radios[room_jid.userhost()] = {'referee': referee, 'queue': [], 'upload': True, 'playing': False, 'occupants_data': {}, 'to_delete': {}} |
| 450 | 170 mess = self.createRadiocolElt(jid.JID(room_jid.userhost())) |
| 171 mess.firstChildElement().addChild(self.__create_started_elt()) | |
| 172 self.host.profiles[profile].xmlstream.send(mess) | |
| 173 | |
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174 def radiocolSongAdded(self, referee, song_path, profile): |
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175 """This method is called by libervia when a song has been uploaded |
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176 @param room_jid_param: jid of the room |
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177 @song_path: absolute path of the song added |
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178 @param profile_key: %(doc_profile_key)s""" |
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179 #XXX: this is a Q&D way for the proof of concept. In the future, the song should |
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180 # be streamed to the backend using XMPP file copy |
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181 # Here we cheat because we know we are on the same host, and we don't |
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182 # check data. Referee will have to parse the song himself to check it |
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183 client = self.host.getClient(profile) |
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184 if not client: |
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185 error(_("Can't access profile's data")) |
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186 return |
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187 try: |
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188 song = OggVorbis(song_path) |
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189 except OggVorbisHeaderError: |
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190 #this file is not ogg vorbis, we reject it |
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191 unlink(song_path) # FIXME: same host trick (see note above) |
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192 self.host.bridge.radiocolSongRejected(jid.JID(referee).userhost(), |
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193 "Uploaded file is not Ogg Vorbis song, only Ogg Vorbis songs are acceptable", profile) |
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194 """mess = self.createRadiocolElt(jid.JID(referee)) |
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195 reject_elt = mess.firstChildElement().addElement(('','song_rejected')) |
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196 reject_elt['sender'] = client.jid |
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197 reject_elt['reason'] = "Uploaded file is not Ogg Vorbis song, only Ogg Vorbis songs are acceptable" |
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198 #FIXME: add an error code |
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199 self.host.profiles[profile].xmlstream.send(mess)""" |
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200 return |
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201 title = song.get("title", ["Unknown"])[0] |
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202 artist = song.get("artist", ["Unknown"])[0] |
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203 album = song.get("album", ["Unknown"])[0] |
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204 length = song.info.length |
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205 mess = self.createRadiocolElt(jid.JID(referee)) |
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206 added_elt = mess.firstChildElement().addElement(('', 'song_added')) |
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207 added_elt['filename'] = filename = os.path.basename(song_path) |
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208 added_elt['title'] = title |
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209 added_elt['artist'] = artist |
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210 added_elt['album'] = album |
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211 added_elt['length'] = str(length) |
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212 self.host.profiles[profile].xmlstream.send(mess) |
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213 |
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214 radio_data = self.radios[jid.JID(referee).userhost()] # FIXME: referee comes from Libervia's client side, it's unsecure |
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215 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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216 |
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217 def playNext(self, room_jid, profile): |
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218 """"Play next sont in queue if exists, and put a timer |
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219 which trigger after the song has been played to play next one""" |
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220 #TODO: need to check that there are still peoples in the room |
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221 # and clean the datas/stop the playlist if it's not the case |
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222 #TODO: songs need to be erased once played or found invalids |
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223 # ==> unlink done the Q&D way with the same host trick (see above) |
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224 radio_data = self.radios[room_jid.userhost()] |
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225 queue = radio_data['queue'] |
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226 if not queue: |
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227 #nothing left to play, we need to wait for uploads |
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228 radio_data['playing'] = False |
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229 return |
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230 |
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231 filename, length = queue.pop(0) |
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232 mess = self.createRadiocolElt(room_jid) |
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233 play_elt = mess.firstChildElement().addElement(('', 'play')) |
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234 play_elt['filename'] = filename |
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235 self.host.profiles[profile].xmlstream.send(mess) |
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236 |
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237 if not radio_data['upload'] and len(queue) < QUEUE_LIMIT: |
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238 #upload is blocked and we now have resources to get more, we reactivate it |
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239 mess = self.createRadiocolElt(room_jid) |
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240 no_upload_elt = mess.firstChildElement().addElement(('', 'upload_ok')) |
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241 self.host.profiles[profile].xmlstream.send(mess) |
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242 radio_data['upload'] = True |
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243 |
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244 reactor.callLater(length, self.playNext, room_jid, profile) |
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245 try: |
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246 file_to_delete = radio_data['to_delete'][filename] |
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247 except KeyError: |
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248 error(_("INTERNAL ERROR: can't find full path of the song to delete")) |
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249 return |
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250 |
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251 #we wait more than the song length to delete the file, to manage poorly reactive networks/clients |
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252 reactor.callLater(length + 90, unlink, file_to_delete) # FIXME: same host trick (see above) |
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253 |
| 450 | 254 def radiocol_game_cmd(self, mess_elt, profile): |
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255 #FIXME: we should check sender (is it referee ?) here before accepting commands |
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256 from_jid = jid.JID(mess_elt['from']) |
| 450 | 257 room_jid = jid.JID(from_jid.userhost()) |
| 258 radio_elt = mess_elt.firstChildElement() | |
| 259 radio_data = self.radios[room_jid.userhost()] | |
| 260 occupants_data = radio_data['occupants_data'] | |
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261 queue = radio_data['queue'] |
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262 |
| 450 | 263 for elt in radio_elt.elements(): |
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264 |
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265 if elt.name == 'started': # new game created |
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266 self.host.bridge.radiocolStarted(room_jid.userhost(), from_jid.full(), profile) |
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267 elif elt.name == 'preload': # a song is in queue and must be preloaded |
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268 self.host.bridge.radiocolPreload(room_jid.userhost(), elt['filename'], elt['title'], elt['artist'], elt['album'], profile) |
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269 elif elt.name == 'play': |
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270 self.host.bridge.radiocolPlay(room_jid.userhost(), elt['filename'], profile) |
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271 elif elt.name == 'song_rejected': # a song has been refused |
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272 self.host.bridge.radiocolSongRejected(room_jid.userhost(), elt['reason'], profile) |
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273 elif elt.name == 'no_upload': |
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274 self.host.bridge.radiocolNoUpload(room_jid.userhost(), profile) |
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275 elif elt.name == 'upload_ok': |
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276 self.host.bridge.radiocolUploadOk(room_jid.userhost(), profile) |
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277 elif elt.name == 'song_added': # a song has been added |
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278 #FIXME: we are KISS for the proof of concept: every song is added, to a limit of 3 in queue. |
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279 # Need to manage some sort of rules to allow peoples to send songs |
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280 |
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281 if len(queue) >= QUEUE_LIMIT: |
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282 #there are already too many songs in queue, we reject this one |
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283 mess = self.createRadiocolElt(room_jid) |
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284 reject_elt = mess.firstChildElement().addElement(('', 'song_rejected')) |
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285 reject_elt['sender'] = from_jid.resource |
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286 reject_elt['reason'] = "Too many songs in queue" |
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287 #FIXME: add an error code |
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288 self.host.profiles[profile].xmlstream.send(mess) |
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289 return |
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290 |
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291 #The song is accepted and added in queue |
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292 queue.append((elt['filename'], float(elt['length']))) |
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293 |
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294 if len(queue) >= QUEUE_LIMIT: |
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295 #We are at the limit, we refuse new upload until next play |
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296 mess = self.createRadiocolElt(room_jid) |
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297 no_upload_elt = mess.firstChildElement().addElement(('', 'no_upload')) |
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298 #FIXME: add an error code |
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299 self.host.profiles[profile].xmlstream.send(mess) |
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300 radio_data['upload'] = False |
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301 |
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302 mess = self.createRadiocolElt(room_jid) |
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303 preload_elt = self.__create_preload_elt(from_jid.resource, |
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304 elt['filename'], |
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305 elt['title'], |
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306 elt['artist'], |
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307 elt['album']) |
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308 mess.firstChildElement().addChild(preload_elt) |
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309 self.host.profiles[profile].xmlstream.send(mess) |
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310 if not radio_data['playing'] and len(queue) == 2: |
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311 #we have not started playing yet, and we have 2 songs in queue |
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312 #we can now start the party :) |
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313 radio_data['playing'] = True |
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314 self.playNext(room_jid, profile) |
| 450 | 315 else: |
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316 error(_('Unmanaged game element: %s') % elt.name) |
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317 |
| 450 | 318 def getHandler(self, profile): |
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319 return RadiocolHandler(self) |
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320 |
| 450 | 321 |
| 322 class RadiocolHandler (XMPPHandler): | |
| 323 implements(iwokkel.IDisco) | |
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324 |
| 450 | 325 def __init__(self, plugin_parent): |
| 326 self.plugin_parent = plugin_parent | |
| 327 self.host = plugin_parent.host | |
| 328 | |
| 329 def connectionInitialized(self): | |
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330 self.xmlstream.addObserver(RADIOC_REQUEST, self.plugin_parent.radiocol_game_cmd, profile=self.parent.profile) |
| 450 | 331 |
| 332 def getDiscoInfo(self, requestor, target, nodeIdentifier=''): | |
| 333 return [disco.DiscoFeature(NC_RADIOCOL)] | |
| 334 | |
| 335 def getDiscoItems(self, requestor, target, nodeIdentifier=''): | |
| 336 return [] |