Added Session Exchange to tools.

git-svn-id: svn://localhost/ardour2/trunk@1351 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 856 insertions, 0 deletions

diff --git a/tools/session_exchange.py b/tools/session_exchange.py
new file mode 100755
index 0000000000..825476c967
--- /dev/null
+++ b/tools/session_exchange.py
@@ -0,0 +1,856 @@
+#! /usr/bin/python
+
+# Session Exchange
+# By Taybin Rutkin
+# Copyright 2004-2005, under the GPL
+
+VERSION='0.1.2'
+
+#twisted libraries
+from twisted.internet import gtk2reactor
+gtk2reactor.install()
+from twisted.internet import reactor, protocol
+import twisted.internet.error
+
+#pygtk libraries
+import gobject
+import gtk
+
+#standard python2.2 libraries
+import getopt
+import os
+import os.path
+import re
+import shelve
+import string
+import sys
+import xml.dom.minidom
+
+def get_header_size(filename):
+	size = 0
+	file = open(filename, 'r')
+	while True:
+		chunk = file.read(4)
+		size += 4
+		if chunk == "data":
+			file.close()
+			return size + 4	#include the size chunk after "data"
+		if not chunk:
+			file.close()
+			return None
+
+def append_empty_data(self, filename, size):
+	file = open(filename, 'a')
+	file.seek(size-1)
+	file.write('\x00')
+	file.close()
+	
+def get_sound_list(snapshot):
+	doc = xml.dom.minidom.parse(snapshot)
+	
+	regionlist = []
+	playlists_tag = doc.getElementsByTagName('Playlists')
+	playlists = playlists_tag[0].getElementsByTagName('Playlist')
+	for play in playlists:
+		regions = play.getElementsByTagName('Region')
+		for region in regions:
+			regionlist.append(region.getAttribute('source-0'))
+			regionlist.append(region.getAttribute('source-1'))
+			regionlist.append(region.getAttribute('source-2'))
+			regionlist.append(region.getAttribute('source-3'))
+			regionlist.append(region.getAttribute('source-4'))
+			regionlist.append(region.getAttribute('source-5'))
+	
+	sourcelist = {}
+	sources = doc.getElementsByTagName('Source')
+	for source in sources:
+		sourcelist[source.getAttribute('id')] = str(source.getAttribute('name'))
+
+	soundlist = []
+	for id in regionlist:
+		if sourcelist.has_key(id):
+			soundlist.append(sourcelist[id])
+	
+	return soundlist
+
+def raise_error(string, parent):
+	dialog = gtk.MessageDialog(parent, gtk.DIALOG_MODAL | gtk.DIALOG_DESTROY_WITH_PARENT,
+	gtk.MESSAGE_WARNING, gtk.BUTTONS_OK, string)
+	
+	dialog.run()
+	dialog.destroy()
+
+class Data(object):
+	def delete_snap(self, session, collab, snap):
+		sessions = self._data['sessions']
+		sessions[session]['collabs'][collab]['snaps'].remove(snap)
+		self._data['sessions'] = sessions
+	
+	def delete_collab(self,session, collab):
+		sessions = self._data['sessions']
+		del sessions[session]['collabs'][collab]
+		self._data['sessions'] = sessions
+	
+	def delete_session(self, session):
+		sessions = self._data['sessions']
+		del sessions[session]
+		self._data['sessions'] = sessions
+	
+	def add_snap(self, session_name, collab_name, snap_name):
+		sessions = self._data['sessions']
+		sessions[session_name]['collabs'][collab_name]['snaps'].append(snap_name)
+		sessions[session_name]['collabs'][collab_name]['snaps'].sort()
+		self._data['sessions'] = sessions
+		
+		g_display.update_snap_view()
+	
+	def add_collab(self, session_name, collab_name, ip_address, port):
+		sessions = self._data['sessions']
+		sessions[session_name]['collabs'][collab_name] = {}
+		sessions[session_name]['collabs'][collab_name]['snaps'] = []
+		sessions[session_name]['collabs'][collab_name]['sounds'] = []
+		sessions[session_name]['collabs'][collab_name]['ip'] = ip_address
+		sessions[session_name]['collabs'][collab_name]['port'] = port
+		self._data['sessions'] = sessions
+		
+		client = ExchangeClientFactory(session_name, collab_name, None, self.debug_mode)
+		reactor.connectTCP(ip_address, port, client)
+		g_display.show_status("connecting")
+		
+		g_display.update_collab_view()
+	
+	def add_session(self, session_path):
+		sessions = self._data['sessions']
+		
+		session_name = session_path[session_path.rfind('/', 0, len(session_path)-2)+1: -1]
+		sessions[session_name] = {}
+		sessions[session_name]['path'] = session_path 
+		sessions[session_name]['collabs'] = {}
+		sessions[session_name]['collabs'][self._data['user']] = {}
+		sessions[session_name]['collabs'][self._data['user']]['snaps'] = []
+		sessions[session_name]['collabs'][self._data['user']]['sounds'] = []
+		
+		self._data['sessions'] = sessions
+		
+		self.rescan_session(session_name)
+
+	def rescan_session(self, session_name):
+		sessions = self._data['sessions']
+		
+		session_path = sessions[session_name]['path']
+		sessions[session_name]['collabs'][self._data['user']]['snaps'] = self._scan_snapshots(session_path)
+		sessions[session_name]['collabs'][self._data['user']]['sounds'] = self._scan_sounds(session_path)
+		
+		self._data['sessions'] = sessions
+		
+		g_display.update_snap_view()
+		
+		print self._data['sessions']
+	
+	def create_session(self, session_path):
+		try:
+			os.mkdir(session_path)
+			os.mkdir(session_path+"/sounds")
+		except OSError:
+			raise_error("Could not create session directory", g_display.window)
+			return
+		
+		sessions = self._data['sessions']
+		
+		session_name = session_path[session_path.rfind('/', 0, len(session_path)-2)+1: ]
+		sessions[session_name] = {}
+		sessions[session_name]['path'] = session_path
+		sessions[session_name]['collabs'] = {}
+		sessions[session_name]['collabs'][self._data['user']] = {}
+		sessions[session_name]['collabs'][self._data['user']]['snaps'] = []
+		sessions[session_name]['collabs'][self._data['user']]['sounds'] = []
+		
+		self._data['sessions'] = sessions
+		print self._data['sessions']
+	
+	def get_session_path(self, session):
+		sessions = self._data['sessions']
+		return sessions[session]['path']
+	
+	def get_user(self):
+		return self._data['user']
+	
+	def set_user(self, username):
+		self._data['user'] = username
+	
+	def get_collab_ip(self, session, collab):
+		sessions = self._data['sessions']
+		return sessions[session]['collabs'][collab]['ip']
+	
+	def close(self):
+		self._data.close()
+	
+	def get_sessions(self):
+		sessions = self._data['sessions']
+		sess = sessions.keys()
+		sess.sort()
+		return sess
+	
+	def get_collabs(self, session):
+		if session:
+			sessions = self._data['sessions']
+			collabs = sessions[session]['collabs'].keys()
+			collabs.sort()
+			return collabs
+		else:
+			return []
+	
+	def get_snaps(self, session, collab):
+		if session and collab:
+			sessions = self._data['sessions']
+			snaps = sessions[session]['collabs'][collab]['snaps']
+			snaps.sort()
+			return snaps
+		else:
+			return []
+	
+	def get_sounds(self, session, collab):
+		if session and collab:
+			sessions = self._data['sessions']
+			sounds = sessions[session]['collabs'][self._data['user']]['sounds']
+			sounds.sort()
+			return sounds
+		else:
+			return []
+		
+	def _scan_snapshots(self, session):
+		snaps = []
+		files = os.listdir(session)
+		pattern = re.compile(r'\.ardour$')
+		for file in files:
+			if pattern.search(file):
+				snaps.append(file[0:-7])
+				print file[0:-7]
+		return snaps
+	
+	def _scan_sounds(self, session):
+		sounds = []
+		files = os.listdir(session+'/sounds')
+		pattern = re.compile(r'\.peak$')
+		for file in files:
+			if not pattern.search(file):
+				sounds.append(file)
+		return sounds
+	
+	def __init__(self, *args):
+		self._data = shelve.open(os.path.expanduser('~/.session_exchange'), 'c')
+		self.port = 8970
+		self.debug_mode = False
+		if len(self._data.keys()) < 1:
+			self._data['sessions'] = {}
+			self._data['user'] = ''
+		
+		self._collabs = {}
+
+from twisted.protocols.basic import FileSender
+class FileSenderLimited(FileSender):
+	def beginFileTransfer(self, file, consumer, limit, transform = None):
+		self.file = file
+		self.consumer = consumer
+		self.CHUNK_SIZE = limit
+		self.transform = transform
+		
+		self.consumer.registerProducer(self, False)
+		self.deferred = defer.Deferred()
+		return self.deferred
+	
+	def resumeProducing(self):
+		chunk = ''
+		chunk = self.file.read(self.CHUNK_SIZE)
+		
+		if self.transform:
+			chunk = self.transform(chunk)
+
+		self.consumer.write(chunk)
+		self.lastSent = chunk[-1]
+		self.file = None
+		self.consumer.unregisterProducer()
+		self.deferred.callback(self.lastSent)
+		self.deferred = None
+
+from twisted.protocols.basic import LineReceiver
+class ExchangeServer (LineReceiver):
+	def __init__(self):
+		self.state = "IDLE"
+	
+	def error(self, message):
+		self.sendLine("ERROR")
+		self.sendLine(message)
+		self.transport.loseConnection()
+	
+	def connectionLost(self, reason):
+		print "server: connection lost: ", reason
+	
+	def connectionMade(self):
+		print "server: connection made"
+	
+	def lineReceived(self, data):
+		print "server: ", data
+		
+		if self.state == "SESSION":
+			if g_data.get_sessions().count(data):
+				self.session_name = data
+				self.state = "IDLE"
+				self.sendLine("OK")
+			else:
+				self.error(data + " doesn't exist on server")
+		elif self.state == "SNAPSHOT":
+			if g_data.get_snaps(self.session_name, g_data.get_user()).count(data):
+				filename = g_data.get_session_path(self.session_name)+data+'.ardour'
+				print filename
+				self.sendLine(str(os.stat(filename).st_size))
+				self.sendLine("OK")
+				self.file = open(filename, 'r')
+				file_sender = FileSender()
+				cb = file_sender.beginFileTransfer(self.file, self.transport)
+				cb.addCallback(self.file_done)
+			else:
+				self.error("snapshot: " + data + " doesn't exist on server")
+		elif self.state == "SOUNDFILE" or self.state == "SOUNDFILE_HEADER":
+			if g_data.get_sounds(self.session_name, g_data.get_user()).count(data):
+				filename = g_data.get_session_path(self.session_name)+"/sounds/"+data
+				print filename
+				if self.state == "SOUNDFILE":
+					self.sendLine(str(os.stat(filename).st_size))
+				else:	#SOUNDFILE_HEADER
+					header_size = get_header_size(filename)
+					if header_size:
+						self.sendLine(str(header_size))
+					else:
+						self.error('soundfile: ' + data + 'doesn\'t have "data" chunk')
+				self.sendLine("OK")
+				self.file = open(filename, 'r')
+				if self.state == "SOUNDFILE":
+					file_sender = FileSender()
+					cb = file_sender.beginFileTransfer(self.file, self.transport)
+				else:	# SOUNDFILE_HEADER
+					file_sender = FileSenderLimited()
+					cb = file_sender.beginFileTransfer(self.file, self.transport, header_size)
+				cb.addCallback(self.file_done)
+			else:
+				self.error("soundfile: " + data + "doesn't exist on server")
+		elif self.state == "SOUNDFILE_SIZE":
+			if g_data.get_sounds(self.session_name, g_data.get_user()).count(data):
+				filename = g_data.get_session_path(self.session_name)+"/sounds/"+data
+				print filename
+				self.sendLine(str(os.stat(filename).st_size))
+				self.state = "IDLE"
+		elif data == "SESSION":
+			self.state = "SESSION"
+		elif data == "SNAPS":
+			self.state = "SNAPS"
+			for snap in g_data.get_snaps(self.session_name, g_data.get_user()):
+				self.sendLine(snap)
+			self.sendLine("OK")
+			self.state = "IDLE"
+		elif data == "SNAPSHOT":
+			self.state = "SNAPSHOT"
+		elif data == "SOUNDFILE":
+			self.state = "SOUNDFILE"
+		elif data == "SOUNDFILE_HEADER":
+			self.state = "SOUNDFILE_HEADER"
+		elif data == "SOUNDFILE_SIZE":
+			self.state = "SOUNDFILE_SIZE"
+	
+	def file_done(self, data):
+		print "server: file done"
+		self.file.close()
+		self.state = "IDLE"
+	
+class ExchangeServerFactory(protocol.ServerFactory):
+	protocol = ExchangeServer
+	
+	def __init__(self):
+		pass
+
+class ExchangeClient (LineReceiver):
+	def __init__(self, session_name, collab_name, snap_name, debug_mode):
+		self.session_name = session_name
+		self.collab_name = collab_name
+		self.snap_name = snap_name
+		self.debug_mode = debug_mode
+		self.state = "IDLE"
+	
+	def connectionLost(self, reason):
+		g_display.show_status("Connection lost")
+	
+	def connectionMade(self):
+		g_display.show_status("Connection made")
+		self.state = "SESSION"
+		self.sendLine("SESSION")
+		self.sendLine(self.session_name)
+	
+	def rawDataReceived(self, data):
+		self.file.write(data)
+		self.received += len(data)
+		print self.received, self.filesize
+		if self.received >= self.filesize:
+			self.setLineMode()
+			self.file.close()
+			g_data.rescan_session(self.session_name)
+			if self.state == "SNAPSHOT":
+				self.sounds = get_sound_list(self.filename)
+				if len(self.sounds):
+					self.sound_index = 0
+					if self.debug_mode:
+						self.state = "SOUNDFILE_HEADER"
+						self.sendLine("SOUNDFILE_HEADER")
+					else:
+						self.state = "SOUNDFILE"
+						self.sendLine("SOUNDFILE")
+					self.sendLine(self.sounds[self.sound_index])
+				else:
+					self.transport.loseConnection()
+			elif self.state == "SOUNDFILE":
+				self.sound_index += 1
+				if self.sound_index > len(self.sounds)-1:
+					self.transport.loseConnection()
+				else:
+					self.sendLine("SOUNDFILE")
+					self.sendLine(self.sounds[self.sound_index])
+			elif self.state == "SOUNDFILE_HEADER":
+				self.state = "SOUNDFILE_SIZE"
+				self.sendLine("SOUNDFILE_SIZE")
+				self.sendLine(self.sounds[self.sound_index])
+	
+	def lineReceived(self, data):
+		print "client: ", data
+		
+		if data == "ERROR":
+			self.state = "ERROR"
+		elif data == "OK":
+			if self.state == "SESSION":
+				if self.snap_name:
+					self.state = "SNAPSHOT"
+					self.sendLine("SNAPSHOT")
+					self.sendLine(self.snap_name)
+				else:
+					self.state = "SNAPS"
+					self.sendLine("SNAPS")
+			elif self.state == "SNAPS":
+				self.transport.loseConnection()
+			elif self.state == "SNAPSHOT":
+				self.setRawMode()
+				self.filename = g_data.get_session_path(self.session_name)+'/'+self.snap_name+'.ardour'
+				self.file = open(self.filename, 'w')
+				self.received = 0
+			elif self.state == "SOUNDFILE" or self.state == "SOUNDFILE_HEADER":
+				self.setRawMode()
+				self.filename = g_data.get_session_path(self.session_name)+'/sounds/'+self.sounds[self.sound_index]
+				self.file = open(self.filename, 'w')
+				self.received = 0
+		elif self.state == "ERROR":
+			raise_error(data, g_display.window)
+		elif self.state == "SNAPS":
+			g_data.add_snap(self.session_name, self.collab_name, data)
+		elif self.state == "SNAPSHOT":
+			self.filesize = int(data)
+		elif self.state == "SOUNDFILE":
+			self.filesize = int(data)
+		elif self.state == "SOUNDFILE_HEADER":
+			self.filesize = int(data)
+		elif self.state == "SOUNDFILE_SIZE":
+			append_empty_data(self.filename, int(data))
+			self.sound_index += 1
+			if self.sound_index > len(self.sounds)-1:
+				self.transport.loseConnection()
+			else:
+				self.state = "SOUNDFILE_HEADER"
+				self.sendLine("SOUNDFILE_HEADER")
+				self.sendLine(self.sounds[self.sound_index])
+
+class ExchangeClientFactory(protocol.ClientFactory):
+	def buildProtocol(self, addr):
+		return ExchangeClient(self.session_name, self.collab_name, self.snap_name, self.debug_mode)
+	
+	def clientConnectionFailed(self, connector, reason):
+		raise_error('Connection failed: ' + reason.getErrorMessage(), g_display.window)
+		g_display.show_status('Connection failed')
+	
+	def __init__(self, session_name, collab_name, snap_name, debug_mode):
+		self.session_name = session_name
+		self.collab_name = collab_name
+		self.snap_name = snap_name
+		self.debug_mode = debug_mode
+
+class HelperWin(object):
+	def delete_me(self, window):
+		self = 0
+
+class Preferences(HelperWin):
+	def __init__(self):
+		self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
+		self.window.set_title('Preferences')
+		self.window.connect('destroy', self.delete_me)
+		self.window.set_position(gtk.WIN_POS_MOUSE)
+		
+		main_box = gtk.VBox()
+		self.window.add(main_box)
+		
+		hbox1 = gtk.HBox()
+		label1 = gtk.Label("User")
+		self.user = gtk.Entry()
+		self.user.set_text(g_data.get_user())
+		hbox1.pack_start(label1)
+		hbox1.pack_start(self.user)
+		main_box.pack_start(hbox1)
+		
+		ok_btn = gtk.Button("Ok")
+		ok_btn.connect('clicked', self.ok_clicked)
+		main_box.pack_start(ok_btn)
+		
+		self.window.show_all()
+		
+	def ok_clicked(self, btn):
+		g_data.set_user(self.user.get_text())
+		self.window.hide_all()
+		
+	def show_all(self):
+		self.window.show_all()
+
+class AddCollaborator(HelperWin):
+	def __init__(self, session):
+		self.session_name = session
+		
+		self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
+		self.window.set_title('Fetch Session')
+		self.window.connect('destroy', self.delete_me)
+		self.window.set_position(gtk.WIN_POS_MOUSE)
+		
+		main_box = gtk.VBox()
+		self.window.add(main_box)
+		
+		hbox0 = gtk.HBox()
+		label0 = gtk.Label("Collaborator")
+		self.collab = gtk.Entry()
+		self.collab.connect('key-release-event', self.key_press)
+		hbox0.pack_start(label0)
+		hbox0.pack_start(self.collab)
+		main_box.pack_start(hbox0)
+		
+		hbox1 = gtk.HBox()
+		label1 = gtk.Label("IP Address")
+		self.address = gtk.Entry()
+		self.address.connect('key-release-event', self.key_press)
+		hbox1.pack_start(label1)
+		hbox1.pack_start(self.address)
+		main_box.pack_start(hbox1)
+		
+		hbox2 = gtk.HBox()
+		label2 = gtk.Label("Port Number")
+		self.port = gtk.Entry()
+		self.port.connect('key-release-event', self.key_press)
+		self.port.set_text(str(g_data.port))
+		hbox2.pack_start(label2)
+		hbox2.pack_start(self.port)
+		main_box.pack_start(hbox2)
+		
+		hbox3 = gtk.HBox()
+		label3 = gtk.Label("Username")
+		label3.set_sensitive(False)
+		self.username = gtk.Entry()
+		self.username.set_sensitive(False)
+		hbox3.pack_start(label3)
+		hbox3.pack_start(self.username)
+		main_box.pack_start(hbox3)
+		
+		hbox4 = gtk.HBox()
+		label4 = gtk.Label("Password")
+		label4.set_sensitive(False)
+		self.password = gtk.Entry()
+		self.password.set_sensitive(False)
+		hbox4.pack_start(label4)
+		hbox4.pack_start(self.password)
+		main_box.pack_start(hbox4)
+		
+		self.ok_btn = gtk.Button(gtk.STOCK_OK)
+		self.ok_btn.set_use_stock(True)
+		self.ok_btn.connect('clicked', self.ok_clicked)
+		self.ok_btn.set_sensitive(False)
+		main_box.pack_start(self.ok_btn)
+		
+		self.window.show_all()
+	
+	def key_press(self, event, data):
+		if self.collab.get_text() and self.address.get_text() and self.port.get_text():
+			self.ok_btn.set_sensitive(True)
+		else:
+			self.ok_btn.set_sensitive(False)
+		return True
+	
+	def ok_clicked(self, btn):
+		self.window.hide_all()
+		g_data.add_collab(self.session_name, self.collab.get_text(), self.address.get_text(), int(self.port.get_text()))
+		self.collab.set_text('')
+		self.address.set_text('')
+		self.port.set_text('')
+		self.username.set_text('')
+		self.password.set_text('')
+	
+	def show_all(self):
+		self.window.show_all()
+
+class ArdourShareWindow(object):
+	def menuitem_cb(self, window, action, widget):
+		print self, window, action, widget
+	
+	def add_collaborator_cb(self, window, action, widget):
+		if self.session:
+			self.add_session = AddCollaborator(self.session)
+	
+	def fetch_snapshot_cb(self, window, action, widget):
+		if self.session and self.collab and self.collab != g_data.get_user():
+			client = ExchangeClientFactory(self.session, self.collab, self.snap, g_data.debug_mode)
+			reactor.connectTCP(g_data.get_collab_ip(self.session, self.collab), g_data.port, client)
+	
+	def preferences_cb(self, window, action, widget):
+		self.preferences = Preferences()
+	
+	def add_session_ok_file_btn_clicked(self, w):
+		filename = self.file_sel.get_filename()
+		if filename.endswith(".ardour"):
+			g_data.add_session(filename[0:filename.rfind("/")+1])
+			self.update_session_view()
+		else:
+			raise_error("Not an Ardour session", self.window)
+		self.file_sel.destroy()
+	
+	def add_session_cb(self, window, action, widget):
+		if g_data.get_user():
+			self.file_sel = gtk.FileSelection("Add Session...")
+			self.file_sel.ok_button.connect("clicked", self.add_session_ok_file_btn_clicked)
+			self.file_sel.cancel_button.connect("clicked", lambda w: self.file_sel.destroy())
+			self.file_sel.connect("destroy", lambda w: self.file_sel.destroy())
+			self.file_sel.show()
+		else:
+			raise_error("Set the user name in the preferences first", self.window)
+	
+	def create_session_cb(self, window, action, widget):
+		if g_data.get_user():
+			self.file_sel = gtk.FileSelection("Create Session...")
+			self.file_sel.ok_button.connect("clicked", self.create_file_ok_btn_clicked)
+			self.file_sel.cancel_button.connect("clicked", lambda w: self.file_sel.destroy())
+			self.file_sel.connect("destroy", lambda w: self.file_sel.destroy())
+			self.file_sel.show()
+		else:
+			raise_error("Set the user name in the preferences first", self.window)
+	
+	def create_file_ok_btn_clicked(self, w):
+		filename = self.file_sel.get_filename()
+		if len(filename) > 0:
+			g_data.create_session(filename)
+			self.update_session_view()
+		else:
+			raise_error("Not an Ardour session", self.window)
+		self.file_sel.destroy()
+	
+	def update_session_view(self):
+		self.session_model.clear()
+		for session in g_data.get_sessions():
+			self.session_model.set(self.session_model.append(), 0, session)
+	
+	def update_collab_view(self):
+		self.collab_model.clear()
+		for collab in g_data.get_collabs(self.session):
+			self.collab_model.set(self.collab_model.append(), 0, collab)
+	
+	def update_snap_view(self):
+		self.snap_model.clear()
+		for snap in g_data.get_snaps(self.session, self.collab):
+			self.snap_model.set(self.snap_model.append(), 0, snap)
+	
+	def cb_session_selection_changed(self, selection_object):
+		selected = []
+		selection_object.selected_foreach(lambda model, path, iter, sel = selected: sel.append(path))
+		for x in selected:
+			self.session = self.session_model[x][0]
+		self.selected_type = "session"
+		self.update_collab_view()
+	
+	def cb_collab_selection_changed(self, selection_object):
+		selected = []
+		selection_object.selected_foreach(lambda model, path, iter, sel = selected: sel.append(path))
+		for x in selected:
+			self.collab = self.collab_model[x][0]
+		self.selected_type = "collab"
+		self.update_snap_view()
+	
+	def cb_snap_selection_changed(self, selection_object):
+		selected = []
+		selection_object.selected_foreach(lambda model, path, iter, sel = selected: sel.append(path))
+		for x in selected:
+			self.snap = self.snap_model[x][0]
+		self.selected_type = "snap"
+	
+	def delete_cb(self, window, action, widget):
+		if self.selected_type == "session":
+			g_data.delete_session(self.session)
+			self.session = ""
+			self.collab = ""
+			self.snap = ""
+		elif self.selected_type == "collab":
+			g_data.delete_collab(self.session, self.collab)
+			self.collab = ""
+			self.snap = ""
+		elif self.selected_type == "snap":
+			g_data.delete_snap(self.session, self.collab, self.snap)
+			self.snap = ""
+		
+		self.update_session_view()
+		self.update_collab_view()
+		self.update_snap_view()
+		self.selected_type = ""
+		
+	def show_status(self, text):
+		mid = self.status_bar.push(self._status_cid, text)
+		if self._status_mid:
+			self.status_bar.remove(self._status_cid, self._status_mid)
+		self._status_mid = mid
+	
+	def __init__(self):
+		self.selected_type = ""
+		self.session = ""
+		self.collab = g_data.get_user()
+		self.snap = ""
+		
+		self.preferences = 0
+		self.add_collab = 0
+		self.add_session = 0
+		
+		self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
+		self.window.set_title('Session Exchange')
+		self.window.set_size_request(400, 200)
+		self.window.connect('destroy', lambda win: gtk.main_quit())
+		self.window.set_position(gtk.WIN_POS_MOUSE)
+		
+		accel_group = gtk.AccelGroup()
+		self.window.add_accel_group(accel_group)
+		
+		main_box = gtk.VBox()
+		self.window.add(main_box)
+		
+		menu_items = (
+			('/_File',            None,         None,             0, '<Branch>'),
+			('/File/_Add Session...','<control>A', self.add_session_cb, 0, ''),
+			('/File/Create _Session...', '<control>S', self.create_session_cb, 0, ''),
+			('/File/sep1',        None,         None,             0, '<Separator>'),
+			('/File/_Quit',       '<control>Q', gtk.main_quit,     0, '<StockItem>', gtk.STOCK_QUIT),
+			('/_Edit',            None,         None,             0, '<Branch>' ),
+			('/Edit/Cu_t',        '<control>X', self.menuitem_cb, 0, '<StockItem>', gtk.STOCK_CUT),
+			('/Edit/_Copy',       '<control>C', self.menuitem_cb, 0, '<StockItem>', gtk.STOCK_COPY),
+			('/Edit/_Paste',      '<control>V', self.menuitem_cb, 0, '<StockItem>', gtk.STOCK_PASTE),
+			('/Edit/_Delete',     None,         self.delete_cb, 0, '<StockItem>', gtk.STOCK_DELETE),
+			('/Edit/sep1',        None,         None,             0, '<Separator>'),
+			('/Edit/Add Colla_borator...','<control>B', self.add_collaborator_cb,0,''),
+			('/Edit/_Fetch Snapshot','<control>F', self.fetch_snapshot_cb,0,''),
+			('/Edit/sep1',        None,         None,             0, '<Separator>'),
+			('/Edit/_Preferences...','<control>P', self.preferences_cb, 0, '')
+		)
+		
+		#need to hold a reference to the item_factory or the menubar will disappear.
+		self.item_factory = gtk.ItemFactory(gtk.MenuBar, '<main>', accel_group)
+		self.item_factory.create_items(menu_items, self.window)
+		main_box.pack_start(self.item_factory.get_widget('<main>'), gtk.FALSE)
+		
+		pane1 = gtk.HPaned()
+		pane2 = gtk.HPaned()
+		pane1.pack2(pane2, gtk.TRUE, gtk.FALSE)
+		
+		scroll1 = gtk.ScrolledWindow()
+		scroll1.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
+		pane1.pack1(scroll1, gtk.TRUE, gtk.FALSE)
+		scroll2 = gtk.ScrolledWindow()
+		scroll2.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
+		pane2.pack1(scroll2, gtk.TRUE, gtk.FALSE)
+		scroll3 = gtk.ScrolledWindow()
+		scroll3.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
+		pane2.pack2(scroll3, gtk.TRUE, gtk.FALSE)
+		
+		self.session_model = gtk.ListStore(gobject.TYPE_STRING)
+		view1 = gtk.TreeView(self.session_model)
+		column1 = gtk.TreeViewColumn('Sessions', gtk.CellRendererText(), text=0)
+		view1.append_column(column1)
+		self.session_selection = view1.get_selection()
+		self.session_selection.connect("changed", self.cb_session_selection_changed)
+		scroll1.add(view1)
+		
+		self.update_session_view()
+		
+		self.collab_model = gtk.ListStore(gobject.TYPE_STRING)
+		view2 = gtk.TreeView(self.collab_model)
+		column2 = gtk.TreeViewColumn('Collaborators', gtk.CellRendererText(), text=0)
+		view2.append_column(column2)
+		self.collab_selection = view2.get_selection()
+		self.collab_selection.connect("changed", self.cb_collab_selection_changed)
+		scroll2.add(view2)
+		
+		self.snap_model = gtk.ListStore(gobject.TYPE_STRING)
+		view3 = gtk.TreeView(self.snap_model)
+		column3 = gtk.TreeViewColumn('Snapshots', gtk.CellRendererText(), text=0)
+		view3.append_column(column3)
+		self.snap_selection = view3.get_selection()
+		self.snap_selection.connect("changed", self.cb_snap_selection_changed)
+		scroll3.add(view3)
+		
+		main_box.pack_start(pane1, gtk.TRUE, gtk.TRUE)
+		
+		self.status_bar = gtk.Statusbar()
+		main_box.pack_start(self.status_bar, gtk.FALSE)
+		self._status_cid = self.status_bar.get_context_id('display')
+		self._status_mid = ''
+		
+		self.window.show_all()
+
+def print_help():
+	print """
+	-h, --help
+	-n, --no-server          Only act as a client
+	-p, --port <port number> Defaults to 8970
+	-d, --debug              Infers audio files.  For debugging Ardour.
+	-v, --version            Version
+	"""
+	sys.exit(2)
+
+def main():
+	try:
+		opts, args = getopt.getopt(sys.argv[1:], "hp:ndv", ["help", "port=", "no-server", "debug", "version"])
+	except getopt.GetoptError:
+		print_help()
+	
+	server = True
+	for o, a in opts:
+		if o in ("-h", "--help"):
+			print_help()
+		if o in ("-d", "--debug"):
+			g_display.window.set_title('Session Exchange: Debug Mode')
+			g_data.debug_mode = True
+		if o in ("-p", "--port"):
+			g_data.port = int(a)
+		if o in ("-n", "--no-server"):
+			server = False
+		if o in ("-v", "--version"):
+			print VERSION
+			sys.exit(2)
+	
+	if (server):
+		try:
+			reactor.listenTCP(g_data.port, ExchangeServerFactory())
+		except twisted.internet.error.CannotListenError:
+			print "Can not listen on a port number under 1024 unless run as root"
+			sys.exit(2)
+
+	reactor.run()
+
+	g_data.close()
+
+# global objects
+g_data = Data()
+g_display = ArdourShareWindow()
+
+if __name__ == '__main__':
+	main()