def parse_mediaurl(self, xml, minpriority, maxpriority):
debug('parse_mediaurl\n' + xml)
self.streamtitle = '???'
mediaurls = []
try:
doc = libxml2.parseDoc(xml)
except libxml2.parserError:
debug('Invalid XML')
return mediaurls
root = doc.getRootElement()
if root is None:
debug('No root node')
return mediaurls
urls_and_priorities = []
node = root.children
while node:
if node.name == 'title':
self.streamtitle = utils.get_content_unicode(node)
elif node.name == 'url':
try:
priority = int(node.prop('priority'))
except (ValueError, TypeError):
priority = self.DEFAULT_URL_PRIORITY
content = node.getContent()
if priority >= minpriority and priority <= maxpriority and content != '':
urls_and_priorities.append((priority, content))
node = node.next
doc.freeDoc()
urls_and_priorities.sort()
urls_and_priorities.reverse()
mediaurls = [b[1] for b in urls_and_priorities]
return mediaurls
def send_mainmenu(self):
"""Build the XML main menu from the module description files
in the hard drive.
"""
if not os.path.isdir(template_path):
self.request_done(404, "Can't access service directory %s" %
template_path)
return
debug('Reading XSLT templates from ' + template_path)
# Find menu items in the service.xml files in the subdirectories
menuitems = {}
for f in os.listdir(template_path):
if f == 'bin':
continue
filename = os.path.join(template_path, f, 'service.xml')
if not os.path.isfile(filename):
continue
try:
doc = libxml2.parseFile(filename)
except libxml2.parserError:
debug("Failed to parse " + filename)
continue
title = ''
url = ''
root = doc.getRootElement()
if (root is None) or (root.name != 'service'):
debug("Root node is not 'service' in " + filename)
doc.freeDoc()
continue
node = root.children
while node is not None:
if node.name == 'title':
title = utils.get_content_unicode(node)
elif node.name == 'ref':
url = utils.get_content_unicode(node)
node = node.next
doc.freeDoc()
if (title == '') or (url == ''):
debug("Empty <title> or <ref> in " + filename)
continue
menuitems[title.lower()] = ('<link>\n'
'<label>%s</label>\n'
'<ref>%s</ref>\n'
'</link>\n' %
(libxml2.newText(title),
libxml2.newText(url)))
# Sort the menu items
titles = menuitems.keys()
titles.sort()
# Build the menu
mainmenu = ('<?xml version="1.0"?>\n'
'<wvmenu>\n'
'<title>Select video source</title>\n')
for t in titles:
mainmenu += menuitems[t]
mainmenu += '</wvmenu>'
self.dl = download.DummyDownloader(mainmenu,
writefunc=self.writewrapper,
donefunc=self.request_done)
self.dl.start()
