Mercurial > ~darius > hgwebdir.cgi > py-iview

annotate iview.py @ 0:fa7ca67af8c9

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Initial commit of a python program to fetch iview streams using flvstreamer.
author Daniel O'Connor <darius@dons.net.au>
date Thu, 20 Aug 2009 16:48:16 +0930
parents
children f914f08d69f5
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0
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
Daniel O'Connor <darius@dons.net.au>
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1 #!/usr/bin/env python
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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2
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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3 import exceptions
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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4 import htmlentitydefs
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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5 import re
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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6 import sys
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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7 import time
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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8 import urllib2
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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9 import xml.dom.minidom as minidom
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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10 from xml.parsers.expat import ExpatError
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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11
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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12 confurl = 'http://www.abc.net.au/iview/iview_231_config.xml'
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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13
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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14 pattern = re.compile("&(\w+?);")
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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15
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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16 def descape_entity(m, defs=htmlentitydefs.entitydefs):
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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17 try:
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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18 return defs[m.group(1)]
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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19 except KeyError:
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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20 return m.group(0) # use as is
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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21 def descape(string):
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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22 return pattern.sub(descape_entity, string)
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23
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24 def toBool(s):
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25 if type(s) is bool:
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26 return s
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27 s = str(s).strip().lower()
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28 return not s[0] in ['f','n','0']
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29
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30 class NoAsset(exceptions.Exception):
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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31 pass
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32
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33 class Series(object):
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34 def __init__(self, seriesElem):
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35 self.id = seriesElem.getAttribute("id")
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36 self.url = seriesElem.getAttribute("href")
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37
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38 # Fetch titles and so on
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39 #print "Fetching series URL " + self.url
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40 xmlp = minidom.parse(urllib2.urlopen(self.url))
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41 self.title = self.gatherChildren(xmlp.getElementsByTagName("title"))
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42 self.descr = self.gatherChildren(xmlp.getElementsByTagName("description"))
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43
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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44 # No asset means unpublished?
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45 assets = xmlp.getElementsByTagName("abc:videoAsset")
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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46 if len(assets) == 0:
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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47 raise NoAsset
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48
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49 self.asset = assets[0].childNodes[0].data.rstrip('.flv')
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50
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51 rating = xmlp.getElementsByTagName("abc:rating")[0].childNodes
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52 if len(rating) > 0:
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53 self.rating = descape(rating[0].data)
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54 else:
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55 self.rating = "unrated"
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56
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57 self.imgurl = xmlp.getElementsByTagName("image")[0].getElementsByTagName("url")[0].childNodes[0].data
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58 self.expiry = time.strptime(xmlp.getElementsByTagName("abc:expireDate")[0].childNodes[0].data ,
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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59 '%d/%m/%Y %H:%M:%S')
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60
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61 def gatherChildren(self, elemList):
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62 rtn = []
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63 for e in elemList:
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64 if len(e.childNodes) > 0:
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65 rtn.append(descape(e.childNodes[0].data.strip()))
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66 return rtn
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67
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68 class Channel(object):
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69 def __init__(self, chanElem):
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70 self.id = chanElem.getAttribute("id")
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71 self.sort = chanElem.getAttribute("sort")
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72 self.path = chanElem.getAttribute("path")
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73 self.thumb = chanElem.getAttribute("thumb")
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74 self.name = descape(chanElem.getElementsByTagName("name")[0].childNodes[0].data)
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75 self.descr = descape(chanElem.getElementsByTagName("description")[0].childNodes[0].data)
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76 self.series = []
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77
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78 def getSeries(self):
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79 # This can take ages
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80 print "Fetching series for channel " + self.name
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81 # Series is nested for some reason
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82 xmlp = minidom.parse(urllib2.urlopen(self.path))
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83 nl = xmlp.getElementsByTagName("series")[0]
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84 for s in nl.getElementsByTagName("series"):
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85 try:
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86 self.series.append(Series(s))
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87 except ExpatError:
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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88 print "Unable to parse XML, skipping"
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89 continue
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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90 except NoAsset:
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91 print "No asset tag, skipping"
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92 continue
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93
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94 class IView(object):
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95 def __init__(self):
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96 # Fetch and parse config URL
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97 #print "Fetching configuration URL"
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98 xmlp = minidom.parse(urllib2.urlopen(confurl))
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99 self.params = {}
fa7ca67af8c9 Initial commit of a python program to fetch iview streams using flvstreamer.
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100 for param in xmlp.getElementsByTagName("param"):
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101 self.params[param.getAttribute("name")] = param.getAttribute("value")
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102
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103 # Get token & metered status from auth_path URL
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104 #print "Fetching authorisation information"
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105 self.getAuth()
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106
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107 # Build channel list
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108 #print "Fetching channel list"
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109 xmlp = minidom.parse(urllib2.urlopen(self.params['base_url'] + '/' + self.params['xml_channels']))
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110 self.channels = []
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111 for chan in xmlp.getElementsByTagName("channel"):
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112 self.channels.append(Channel(chan))
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113
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114 def getAuth(self):
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115 xmlp = minidom.parse(urllib2.urlopen(self.params['auth_path']))
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116 self.token = xmlp.getElementsByTagName("token")[0].childNodes[0].data
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117 self.metered = not toBool(xmlp.getElementsByTagName("free")[0].childNodes[0].data)
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118
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119 server = xmlp.getElementsByTagName("server")[0].childNodes
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120 if len(server) == 0:
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121 self.rtmp = self.params['server_streaming'].rstrip('/ondemand') + '////' + self.params['media_path']
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122 self.tcurl = self.params['server_streaming']
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123 else:
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124 self.rtmp = xmlp.getElementsByTagName("server")[0].childNodes[0].data
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125 self.tcurl = None
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126
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127 def genFetchCmd(self, series, outfile):
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128 cmd = ['-m', '1200']
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129 if self.tcurl == None:
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130 cmd += ['-r', self.rtmp + '?auth=' + self.token]
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131 cmd += ['-y', series.asset]
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132 else:
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133 cmd += ['-r', self.rtmp + series.asset]
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134 cmd += ['-t', self.tcurl + '?auth=' + self.token]
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135 cmd += ['-o', outfile]
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136 return cmd
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137
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138 # Non-metered:
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139 #/home/darius/projects/flvstreamer/flvstreamer_x86
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140 # -r rtmp://cp53909.edgefcs.net////flash/playback/_definst_/catch_up/compass_09_23_28
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141 # -t rtmp://cp53909.edgefcs.net/ondemand?auth=daEbFbibab6d4c0cwdjcwcya4dTb9cucucw-bkJnTd-8-klt_rFzqL&aifp=v001
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142 # -o ./compass_09_23_28.flv -m 1200