Mercurial > ~darius > hgwebdir.cgi > py-iview
diff iview.py @ 0:fa7ca67af8c9
Initial commit of a python program to fetch iview streams using flvstreamer.
author | Daniel O'Connor <darius@dons.net.au> |
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date | Thu, 20 Aug 2009 16:48:16 +0930 |
parents | |
children | f914f08d69f5 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/iview.py Thu Aug 20 16:48:16 2009 +0930 @@ -0,0 +1,142 @@ +#!/usr/bin/env python + +import exceptions +import htmlentitydefs +import re +import sys +import time +import urllib2 +import xml.dom.minidom as minidom +from xml.parsers.expat import ExpatError + +confurl = 'http://www.abc.net.au/iview/iview_231_config.xml' + +pattern = re.compile("&(\w+?);") + +def descape_entity(m, defs=htmlentitydefs.entitydefs): + try: + return defs[m.group(1)] + except KeyError: + return m.group(0) # use as is +def descape(string): + return pattern.sub(descape_entity, string) + +def toBool(s): + if type(s) is bool: + return s + s = str(s).strip().lower() + return not s[0] in ['f','n','0'] + +class NoAsset(exceptions.Exception): + pass + +class Series(object): + def __init__(self, seriesElem): + self.id = seriesElem.getAttribute("id") + self.url = seriesElem.getAttribute("href") + + # Fetch titles and so on + #print "Fetching series URL " + self.url + xmlp = minidom.parse(urllib2.urlopen(self.url)) + self.title = self.gatherChildren(xmlp.getElementsByTagName("title")) + self.descr = self.gatherChildren(xmlp.getElementsByTagName("description")) + + # No asset means unpublished? + assets = xmlp.getElementsByTagName("abc:videoAsset") + if len(assets) == 0: + raise NoAsset + + self.asset = assets[0].childNodes[0].data.rstrip('.flv') + + rating = xmlp.getElementsByTagName("abc:rating")[0].childNodes + if len(rating) > 0: + self.rating = descape(rating[0].data) + else: + self.rating = "unrated" + + self.imgurl = xmlp.getElementsByTagName("image")[0].getElementsByTagName("url")[0].childNodes[0].data + self.expiry = time.strptime(xmlp.getElementsByTagName("abc:expireDate")[0].childNodes[0].data , + '%d/%m/%Y %H:%M:%S') + + def gatherChildren(self, elemList): + rtn = [] + for e in elemList: + if len(e.childNodes) > 0: + rtn.append(descape(e.childNodes[0].data.strip())) + return rtn + +class Channel(object): + def __init__(self, chanElem): + self.id = chanElem.getAttribute("id") + self.sort = chanElem.getAttribute("sort") + self.path = chanElem.getAttribute("path") + self.thumb = chanElem.getAttribute("thumb") + self.name = descape(chanElem.getElementsByTagName("name")[0].childNodes[0].data) + self.descr = descape(chanElem.getElementsByTagName("description")[0].childNodes[0].data) + self.series = [] + + def getSeries(self): + # This can take ages + print "Fetching series for channel " + self.name + # Series is nested for some reason + xmlp = minidom.parse(urllib2.urlopen(self.path)) + nl = xmlp.getElementsByTagName("series")[0] + for s in nl.getElementsByTagName("series"): + try: + self.series.append(Series(s)) + except ExpatError: + print "Unable to parse XML, skipping" + continue + except NoAsset: + print "No asset tag, skipping" + continue + +class IView(object): + def __init__(self): + # Fetch and parse config URL + #print "Fetching configuration URL" + xmlp = minidom.parse(urllib2.urlopen(confurl)) + self.params = {} + for param in xmlp.getElementsByTagName("param"): + self.params[param.getAttribute("name")] = param.getAttribute("value") + + # Get token & metered status from auth_path URL + #print "Fetching authorisation information" + self.getAuth() + + # Build channel list + #print "Fetching channel list" + xmlp = minidom.parse(urllib2.urlopen(self.params['base_url'] + '/' + self.params['xml_channels'])) + self.channels = [] + for chan in xmlp.getElementsByTagName("channel"): + self.channels.append(Channel(chan)) + + def getAuth(self): + xmlp = minidom.parse(urllib2.urlopen(self.params['auth_path'])) + self.token = xmlp.getElementsByTagName("token")[0].childNodes[0].data + self.metered = not toBool(xmlp.getElementsByTagName("free")[0].childNodes[0].data) + + server = xmlp.getElementsByTagName("server")[0].childNodes + if len(server) == 0: + self.rtmp = self.params['server_streaming'].rstrip('/ondemand') + '////' + self.params['media_path'] + self.tcurl = self.params['server_streaming'] + else: + self.rtmp = xmlp.getElementsByTagName("server")[0].childNodes[0].data + self.tcurl = None + + def genFetchCmd(self, series, outfile): + cmd = ['-m', '1200'] + if self.tcurl == None: + cmd += ['-r', self.rtmp + '?auth=' + self.token] + cmd += ['-y', series.asset] + else: + cmd += ['-r', self.rtmp + series.asset] + cmd += ['-t', self.tcurl + '?auth=' + self.token] + cmd += ['-o', outfile] + return cmd + +# Non-metered: +#/home/darius/projects/flvstreamer/flvstreamer_x86 +# -r rtmp://cp53909.edgefcs.net////flash/playback/_definst_/catch_up/compass_09_23_28 +# -t rtmp://cp53909.edgefcs.net/ondemand?auth=daEbFbibab6d4c0cwdjcwcya4dTb9cucucw-bkJnTd-8-klt_rFzqL&aifp=v001 +# -o ./compass_09_23_28.flv -m 1200