Mercurial > libervia-backend
annotate src/plugins/plugin_misc_radiocol.py @ 705:6c8a119dcc94
plugin text syntaxes: clean_xhtml now accept lxml's HtmlElement to avoid parsing two times the same xml
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Thu, 14 Nov 2013 17:53:47 +0100 |
| parents | 75e4f5e2cc65 |
| children | f610864eb7a5 |
| rev | line source |
|---|---|
| 450 | 1 #!/usr/bin/python |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
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4 # SAT plugin for managing Radiocol |
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5 # Copyright (C) 2009, 2010, 2011, 2012, 2013 Jérôme Poisson (goffi@goffi.org) |
| 450 | 6 |
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7 # This program is free software: you can redistribute it and/or modify |
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8 # it under the terms of the GNU Affero General Public License as published by |
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9 # the Free Software Foundation, either version 3 of the License, or |
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10 # (at your option) any later version. |
| 450 | 11 |
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12 # This program is distributed in the hope that it will be useful, |
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 # GNU Affero General Public License for more details. |
| 450 | 16 |
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17 # You should have received a copy of the GNU Affero General Public License |
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 450 | 19 |
| 20 from logging import debug, info, warning, error | |
| 21 from twisted.words.xish import domish | |
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22 from twisted.internet import reactor |
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23 from twisted.words.protocols.jabber import jid |
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24 |
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25 from wokkel import disco, iwokkel |
| 450 | 26 |
| 27 from zope.interface import implements | |
| 28 | |
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29 import os.path |
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30 from os import unlink |
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31 from mutagen.oggvorbis import OggVorbis, OggVorbisHeaderError |
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32 from sat.tools.plugins.games import RoomGame |
| 450 | 33 try: |
| 34 from twisted.words.protocols.xmlstream import XMPPHandler | |
| 35 except ImportError: | |
| 36 from wokkel.subprotocols import XMPPHandler | |
| 37 | |
| 38 MESSAGE = '/message' | |
| 39 NC_RADIOCOL = 'http://www.goffi.org/protocol/radiocol' | |
| 40 RADIOC_TAG = 'radiocol' | |
| 41 RADIOC_REQUEST = MESSAGE + '/' + RADIOC_TAG + '[@xmlns="' + NC_RADIOCOL + '"]' | |
| 42 | |
| 43 PLUGIN_INFO = { | |
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44 "name": "Radio collective plugin", |
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45 "import_name": "Radiocol", |
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46 "type": "Exp", |
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47 "protocols": [], |
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48 "dependencies": ["XEP-0045", "XEP-0249"], |
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49 "main": "Radiocol", |
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50 "handler": "yes", |
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51 "description": _("""Implementation of radio collective""") |
| 450 | 52 } |
| 53 | |
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54 QUEUE_LIMIT = 2 |
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55 |
| 450 | 56 |
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57 class Radiocol(RoomGame): |
| 450 | 58 |
| 59 def __init__(self, host): | |
| 60 info(_("Radio collective initialization")) | |
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61 RoomGame.__init__(self, host, PLUGIN_INFO, (NC_RADIOCOL, RADIOC_TAG), |
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62 options={'queue': [], 'upload': True, 'playing': False, 'to_delete': {}}) |
| 450 | 63 self.host = host |
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64 host.bridge.addMethod("radiocolLaunch", ".plugin", in_sign='ass', out_sign='', method=self.prepareRoom) |
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65 host.bridge.addMethod("radiocolCreate", ".plugin", in_sign='ss', out_sign='', method=self.createCollectiveGame) |
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66 host.bridge.addMethod("radiocolSongAdded", ".plugin", in_sign='sss', out_sign='', method=self.radiocolSongAdded) |
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67 host.bridge.addSignal("radiocolStarted", ".plugin", signature='sss') # room_jid, referee, profile |
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68 host.bridge.addSignal("radiocolSongRejected", ".plugin", signature='sss') # room_jid, reason, profile |
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69 host.bridge.addSignal("radiocolPreload", ".plugin", signature='ssssss') # room_jid, filename, title, artist, album, profile |
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70 host.bridge.addSignal("radiocolPlay", ".plugin", signature='sss') # room_jid, filename, profile |
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71 host.bridge.addSignal("radiocolNoUpload", ".plugin", signature='ss') # room_jid, profile |
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72 host.bridge.addSignal("radiocolUploadOk", ".plugin", signature='ss') # room_jid, profile |
| 450 | 73 host.trigger.add("MUC user joined", self.userJoinedTrigger) |
| 74 | |
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75 def __create_preload_elt(self, sender, filename, title, artist, album): |
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76 preload_elt = domish.Element((None, 'preload')) |
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77 preload_elt['sender'] = sender |
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78 preload_elt['filename'] = filename # XXX: the frontend should know the temporary directory where file is put |
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79 preload_elt['title'] = title |
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80 preload_elt['artist'] = artist |
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81 preload_elt['album'] = album |
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82 return preload_elt |
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83 |
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84 def radiocolSongAdded(self, referee, song_path, profile): |
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85 """This method is called by libervia when a song has been uploaded |
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86 @param room_jid_param: jid of the room |
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87 @song_path: absolute path of the song added |
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88 @param profile_key: %(doc_profile_key)s""" |
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89 #XXX: this is a Q&D way for the proof of concept. In the future, the song should |
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90 # be streamed to the backend using XMPP file copy |
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91 # Here we cheat because we know we are on the same host, and we don't |
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92 # check data. Referee will have to parse the song himself to check it |
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93 client = self.host.getClient(profile) |
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94 if not client: |
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95 error(_("Can't access profile's data")) |
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96 return |
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97 try: |
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98 song = OggVorbis(song_path) |
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99 except OggVorbisHeaderError: |
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100 #this file is not ogg vorbis, we reject it |
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101 unlink(song_path) # FIXME: same host trick (see note above) |
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102 self.host.bridge.radiocolSongRejected(jid.JID(referee).userhost(), |
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103 "Uploaded file is not Ogg Vorbis song, only Ogg Vorbis songs are acceptable", profile) |
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104 """mess = self.createGameElt(jid.JID(referee)) |
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105 reject_elt = mess.firstChildElement().addElement(('','song_rejected')) |
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106 reject_elt['sender'] = client.jid |
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107 reject_elt['reason'] = "Uploaded file is not Ogg Vorbis song, only Ogg Vorbis songs are acceptable" |
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108 #FIXME: add an error code |
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109 self.host.profiles[profile].xmlstream.send(mess)""" |
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110 return |
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111 title = song.get("title", ["Unknown"])[0] |
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112 artist = song.get("artist", ["Unknown"])[0] |
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113 album = song.get("album", ["Unknown"])[0] |
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114 length = song.info.length |
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115 mess = self.createGameElt(jid.JID(referee)) |
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116 added_elt = mess.firstChildElement().addElement(('', 'song_added')) |
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117 added_elt['filename'] = filename = os.path.basename(song_path) |
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118 added_elt['title'] = title |
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119 added_elt['artist'] = artist |
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120 added_elt['album'] = album |
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121 added_elt['length'] = str(length) |
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122 self.host.profiles[profile].xmlstream.send(mess) |
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123 |
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124 radio_data = self.games[jid.JID(referee).userhost()] # FIXME: referee comes from Libervia's client side, it's unsecure |
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125 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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126 |
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127 def playNext(self, room_jid, profile): |
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128 """"Play next sont in queue if exists, and put a timer |
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129 which trigger after the song has been played to play next one""" |
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130 #TODO: need to check that there are still peoples in the room |
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131 # and clean the datas/stop the playlist if it's not the case |
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132 #TODO: songs need to be erased once played or found invalids |
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133 # ==> unlink done the Q&D way with the same host trick (see above) |
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134 radio_data = self.games[room_jid.userhost()] |
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135 queue = radio_data['queue'] |
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136 if not queue: |
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137 #nothing left to play, we need to wait for uploads |
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138 radio_data['playing'] = False |
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139 return |
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140 |
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141 filename, length = queue.pop(0) |
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142 mess = self.createGameElt(room_jid) |
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143 play_elt = mess.firstChildElement().addElement(('', 'play')) |
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144 play_elt['filename'] = filename |
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145 self.host.profiles[profile].xmlstream.send(mess) |
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146 |
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147 if not radio_data['upload'] and len(queue) < QUEUE_LIMIT: |
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148 #upload is blocked and we now have resources to get more, we reactivate it |
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149 mess = self.createGameElt(room_jid) |
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150 no_upload_elt = mess.firstChildElement().addElement(('', 'upload_ok')) |
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151 self.host.profiles[profile].xmlstream.send(mess) |
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152 radio_data['upload'] = True |
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153 |
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154 reactor.callLater(length, self.playNext, room_jid, profile) |
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155 try: |
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156 file_to_delete = radio_data['to_delete'][filename] |
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157 except KeyError: |
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158 error(_("INTERNAL ERROR: can't find full path of the song to delete")) |
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159 return |
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160 |
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161 #we wait more than the song length to delete the file, to manage poorly reactive networks/clients |
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162 reactor.callLater(length + 90, unlink, file_to_delete) # FIXME: same host trick (see above) |
|
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163 |
| 450 | 164 def radiocol_game_cmd(self, mess_elt, profile): |
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165 #FIXME: we should check sender (is it referee ?) here before accepting commands |
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166 from_jid = jid.JID(mess_elt['from']) |
| 450 | 167 room_jid = jid.JID(from_jid.userhost()) |
| 168 radio_elt = mess_elt.firstChildElement() | |
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169 radio_data = self.games[room_jid.userhost()] |
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170 queue = radio_data['queue'] |
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171 |
| 450 | 172 for elt in radio_elt.elements(): |
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173 |
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174 if elt.name == 'started': # new game created |
|
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175 self.host.bridge.radiocolStarted(room_jid.userhost(), from_jid.full(), profile) |
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176 elif elt.name == 'preload': # a song is in queue and must be preloaded |
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177 self.host.bridge.radiocolPreload(room_jid.userhost(), elt['filename'], elt['title'], elt['artist'], elt['album'], profile) |
|
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178 elif elt.name == 'play': |
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179 self.host.bridge.radiocolPlay(room_jid.userhost(), elt['filename'], profile) |
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180 elif elt.name == 'song_rejected': # a song has been refused |
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181 self.host.bridge.radiocolSongRejected(room_jid.userhost(), elt['reason'], profile) |
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182 elif elt.name == 'no_upload': |
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183 self.host.bridge.radiocolNoUpload(room_jid.userhost(), profile) |
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184 elif elt.name == 'upload_ok': |
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185 self.host.bridge.radiocolUploadOk(room_jid.userhost(), profile) |
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186 elif elt.name == 'song_added': # a song has been added |
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187 #FIXME: we are KISS for the proof of concept: every song is added, to a limit of 3 in queue. |
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188 # Need to manage some sort of rules to allow peoples to send songs |
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189 |
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190 if len(queue) >= QUEUE_LIMIT: |
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191 #there are already too many songs in queue, we reject this one |
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192 mess = self.createGameElt(room_jid) |
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193 reject_elt = mess.firstChildElement().addElement(('', 'song_rejected')) |
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194 reject_elt['sender'] = from_jid.resource |
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195 reject_elt['reason'] = "Too many songs in queue" |
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196 #FIXME: add an error code |
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197 self.host.profiles[profile].xmlstream.send(mess) |
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198 return |
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199 |
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200 #The song is accepted and added in queue |
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201 queue.append((elt['filename'], float(elt['length']))) |
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202 |
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203 if len(queue) >= QUEUE_LIMIT: |
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204 #We are at the limit, we refuse new upload until next play |
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205 mess = self.createGameElt(room_jid) |
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206 no_upload_elt = mess.firstChildElement().addElement(('', 'no_upload')) |
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207 #FIXME: add an error code |
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208 self.host.profiles[profile].xmlstream.send(mess) |
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209 radio_data['upload'] = False |
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210 |
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211 mess = self.createGameElt(room_jid) |
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212 preload_elt = self.__create_preload_elt(from_jid.resource, |
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213 elt['filename'], |
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214 elt['title'], |
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215 elt['artist'], |
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216 elt['album']) |
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217 mess.firstChildElement().addChild(preload_elt) |
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218 self.host.profiles[profile].xmlstream.send(mess) |
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219 if not radio_data['playing'] and len(queue) == 2: |
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220 #we have not started playing yet, and we have 2 songs in queue |
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221 #we can now start the party :) |
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222 radio_data['playing'] = True |
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223 self.playNext(room_jid, profile) |
| 450 | 224 else: |
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225 error(_('Unmanaged game element: %s') % elt.name) |
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226 |
| 450 | 227 def getHandler(self, profile): |
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228 return RadiocolHandler(self) |
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229 |
| 450 | 230 |
| 231 class RadiocolHandler (XMPPHandler): | |
| 232 implements(iwokkel.IDisco) | |
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233 |
| 450 | 234 def __init__(self, plugin_parent): |
| 235 self.plugin_parent = plugin_parent | |
| 236 self.host = plugin_parent.host | |
| 237 | |
| 238 def connectionInitialized(self): | |
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239 self.xmlstream.addObserver(RADIOC_REQUEST, self.plugin_parent.radiocol_game_cmd, profile=self.parent.profile) |
| 450 | 240 |
| 241 def getDiscoInfo(self, requestor, target, nodeIdentifier=''): | |
| 242 return [disco.DiscoFeature(NC_RADIOCOL)] | |
| 243 | |
| 244 def getDiscoItems(self, requestor, target, nodeIdentifier=''): | |
| 245 return [] |