gpodder/src/gpodder/liblocdbwriter.py

#
# gPodder (a media aggregator / podcast client)
# Copyright (C) 2005-2006 Thomas Perl <thp at perli.net>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
# MA  02110-1301, USA.
#


#
#  liblocdbwriter.py -- rss output writer for your downloaded feeds
#  thomas perl <thp@perli.net>   20060109
#
#

import codecs

from datetime import datetime
from xml.sax import saxutils

import libgpodder

class writeLocalDB( object):
    ofile = None
    
    def __init__( self, filename, channel, delete_if_empty = True):
        if delete_if_empty and len( channel.items) == 0:
            if libgpodder.isDebugging():
                print "Seems like there is no item left in this localDB channel"
                print "Deleting channel index file of empty local channel.."
            libgpodder.gPodderLib().deleteFilename( filename)
            return
        
        self.ofile = codecs.open( filename, "w", 'iso-8859-1', 'replace')
	self.ofile.write( '<?xml version="1.0" encoding="ISO-8859-1"?>'+"\n")
	self.ofile.write( '<!-- '+_('local download database, generated by gPodder')+' -->'+"\n")
	self.ofile.write( '<rss version="2.0">'+"\n")
	self.ofile.write( '<channel>'+"\n")
	self.ofile.write( '<pubDate>' + datetime.now().ctime() + '</pubDate>'+"\n")
        
        self.writeTitle( channel.title)
        self.writeDescription( channel.description)
        self.writeLink( channel.link)
        self.writeMetadata( channel)
        
        for item in channel.items:
            self.addItem( item)
            
        self.close()

    def writeTitle( self, title):
	self.ofile.write( '<title>'+saxutils.escape(title)+'</title>'+"\n")

    def writeDescription( self, description):
	self.ofile.write( '<description><![CDATA['+description+']]></description>'+"\n")

    def writeLink( self, link):
	self.ofile.write( '<link>'+link+'</link>'+"\n")

    def writeMetadata( self, channel):
        self.ofile.write( '<gpodder:info')
        self.ofile.write( ' nosync="%s"' % (str(not channel.sync_to_devices).lower()))
        self.ofile.write( '/>'+"\n")

    def close( self):
        self.ofile.write( '</channel>'+"\n")
        self.ofile.write( '</rss>'+"\n")
        self.ofile.close()

    def addItem( self, item):
        self.ofile.write( '<item>'+"\n")
        self.ofile.write( '<title>'+saxutils.escape(item.title)+'</title>'+"\n")
        self.ofile.write( '<description><![CDATA['+item.description+']]></description>'+"\n")
        self.ofile.write( '<url>'+saxutils.escape(item.url)+'</url>'+"\n")
        self.ofile.write( '</item>'+"\n")