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f4mDownloader.py
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# -*- coding: utf-8 -*-
import xml.etree.ElementTree as etree
import base64
from struct import unpack, pack
import sys
import io
import os
import time
import itertools
import xbmcaddon
import xbmc
import urllib2,urllib
import traceback
import urlparse
import posixpath
import re
import hmac
import hashlib
import binascii
import zlib
from hashlib import sha256
import cookielib
#import akhds
#import youtube_dl
#from youtube_dl.utils import *
addon_id = 'plugin.video.itv'
selfAddon = xbmcaddon.Addon(id=addon_id)
__addonname__ = selfAddon.getAddonInfo('name')
__icon__ = selfAddon.getAddonInfo('icon')
downloadPath = xbmc.translatePath(selfAddon.getAddonInfo('profile'))#selfAddon["profile"])
F4Mversion=''
#from Crypto.Cipher import AES
value_unsafe = '%+&;#'
VALUE_SAFE = ''.join(chr(c) for c in range(33, 127)
if chr(c) not in value_unsafe)
def urlencode_param(value):
"""Minimal URL encoding for query parameter"""
return urllib.quote_plus(value, safe=VALUE_SAFE)
class FlvReader(io.BytesIO):
"""
Reader for Flv files
The file format is documented in https://www.adobe.com/devnet/f4v.html
"""
# Utility functions for reading numbers and strings
def read_unsigned_long_long(self):
return unpack('!Q', self.read(8))[0]
def read_unsigned_int(self):
return unpack('!I', self.read(4))[0]
def read_unsigned_char(self):
return unpack('!B', self.read(1))[0]
def read_string(self):
res = b''
while True:
char = self.read(1)
if char == b'\x00':
break
res+=char
return res
def read_box_info(self):
"""
Read a box and return the info as a tuple: (box_size, box_type, box_data)
"""
real_size = size = self.read_unsigned_int()
box_type = self.read(4)
header_end = 8
if size == 1:
real_size = self.read_unsigned_long_long()
header_end = 16
return real_size, box_type, self.read(real_size-header_end)
def read_asrt(self, debug=False):
version = self.read_unsigned_char()
self.read(3) # flags
quality_entry_count = self.read_unsigned_char()
quality_modifiers = []
for i in range(quality_entry_count):
quality_modifier = self.read_string()
quality_modifiers.append(quality_modifier)
segment_run_count = self.read_unsigned_int()
segments = []
#print 'segment_run_count',segment_run_count
for i in range(segment_run_count):
first_segment = self.read_unsigned_int()
fragments_per_segment = self.read_unsigned_int()
segments.append((first_segment, fragments_per_segment))
#print 'segments',segments
return {'version': version,
'quality_segment_modifiers': quality_modifiers,
'segment_run': segments,
}
def read_afrt(self, debug=False):
version = self.read_unsigned_char()
self.read(3) # flags
time_scale = self.read_unsigned_int()
quality_entry_count = self.read_unsigned_char()
quality_entries = []
for i in range(quality_entry_count):
mod = self.read_string()
quality_entries.append(mod)
fragments_count = self.read_unsigned_int()
#print 'fragments_count',fragments_count
fragments = []
for i in range(fragments_count):
first = self.read_unsigned_int()
first_ts = self.read_unsigned_long_long()
duration = self.read_unsigned_int()
if duration == 0:
discontinuity_indicator = self.read_unsigned_char()
else:
discontinuity_indicator = None
fragments.append({'first': first,
'ts': first_ts,
'duration': duration,
'discontinuity_indicator': discontinuity_indicator,
})
#print 'fragments',fragments
return {'version': version,
'time_scale': time_scale,
'fragments': fragments,
'quality_entries': quality_entries,
}
def read_abst(self, debug=False):
version = self.read_unsigned_char()
self.read(3) # flags
bootstrap_info_version = self.read_unsigned_int()
streamType=self.read_unsigned_char()#self.read(1) # Profile,Live,Update,Reserved
islive=False
if (streamType & 0x20) >> 5:
islive=True
print 'LIVE',streamType,islive
time_scale = self.read_unsigned_int()
current_media_time = self.read_unsigned_long_long()
smpteTimeCodeOffset = self.read_unsigned_long_long()
movie_identifier = self.read_string()
server_count = self.read_unsigned_char()
servers = []
for i in range(server_count):
server = self.read_string()
servers.append(server)
quality_count = self.read_unsigned_char()
qualities = []
for i in range(server_count):
quality = self.read_string()
qualities.append(server)
drm_data = self.read_string()
metadata = self.read_string()
segments_count = self.read_unsigned_char()
#print 'segments_count11',segments_count
segments = []
for i in range(segments_count):
box_size, box_type, box_data = self.read_box_info()
assert box_type == b'asrt'
segment = FlvReader(box_data).read_asrt()
segments.append(segment)
fragments_run_count = self.read_unsigned_char()
#print 'fragments_run_count11',fragments_run_count
fragments = []
for i in range(fragments_run_count):
# This info is only useful for the player, it doesn't give more info
# for the download process
box_size, box_type, box_data = self.read_box_info()
assert box_type == b'afrt'
fragments.append(FlvReader(box_data).read_afrt())
return {'segments': segments,
'movie_identifier': movie_identifier,
'drm_data': drm_data,
'fragments': fragments,
},islive
def read_bootstrap_info(self):
"""
Read the bootstrap information from the stream,
returns a dict with the following keys:
segments: A list of dicts with the following keys
segment_run: A list of (first_segment, fragments_per_segment) tuples
"""
total_size, box_type, box_data = self.read_box_info()
assert box_type == b'abst'
return FlvReader(box_data).read_abst()
def read_bootstrap_info(bootstrap_bytes):
return FlvReader(bootstrap_bytes).read_bootstrap_info()
def build_fragments_list(boot_info, startFromFregment=None, live=True):
""" Return a list of (segment, fragment) for each fragment in the video """
res = []
segment_run_table = boot_info['segments'][0]
print 'segment_run_table',segment_run_table
# I've only found videos with one segment
#if len(segment_run_table['segment_run'])>1:
# segment_run_table['segment_run']=segment_run_table['segment_run'][-2:] #pick latest
frag_start = boot_info['fragments'][0]['fragments']
#print boot_info['fragments']
# sum(j for i, j in segment_run_table['segment_run'])
first_frag_number=frag_start[0]['first']
last_frag_number=frag_start[-1]['first']
if last_frag_number==0:
last_frag_number=frag_start[-2]['first']
endfragment=0
segment_to_start=None
for current in range (len(segment_run_table['segment_run'])):
seg,fregCount=segment_run_table['segment_run'][current]
#print 'segmcount',seg,fregCount
if (not live):
frag_end=last_frag_number
else:
frag_end=first_frag_number+fregCount-1
if fregCount>10000:
frag_end=last_frag_number
#if frag_end
segment_run_table['segment_run'][current]=(seg,fregCount,first_frag_number,frag_end)
if (not startFromFregment==None) and startFromFregment>=first_frag_number and startFromFregment<=frag_end:
segment_to_start=current
first_frag_number+=fregCount
# print 'current status',segment_run_table['segment_run']
#if we have no index then take the last segment
if segment_to_start==None:
segment_to_start=len(segment_run_table['segment_run'])-1
#if len(segment_run_table['segment_run'])>2:
# segment_to_start=len(segment_run_table['segment_run'])-2;
if live:
startFromFregment=segment_run_table['segment_run'][-1][3]
# if len(boot_info['fragments'][0]['fragments'])>1: #go bit back
# startFromFregment= boot_info['fragments'][0]['fragments'][-1]['first']
else:
startFromFregment= boot_info['fragments'][0]['fragments'][0]['first'] #start from begining
#if len(boot_info['fragments'][0]['fragments'])>2: #go little bit back
# startFromFregment= boot_info['fragments'][0]['fragments'][-2]['first']
#print 'startFromFregment',startFromFregment,boot_info,len(boot_info['fragments'][0]['fragments'])
#print 'segment_to_start',segment_to_start
for currentIndex in range (segment_to_start,len(segment_run_table['segment_run'])):
currentSegment=segment_run_table['segment_run'][currentIndex]
#print 'currentSegment',currentSegment
(seg,fregCount,frag_start,frag_end)=currentSegment
#print 'startFromFregment',startFromFregment,
if (not startFromFregment==None) and startFromFregment>=frag_start and startFromFregment<=frag_end:
frag_start=startFromFregment
#print 'frag_start',frag_start,frag_end
for currentFreg in range(frag_start,frag_end+1):
res.append((seg,currentFreg ))
# print 'fragmentlist',res,boot_info
return res
#totalFrags=sum(j for i, j in segment_run_table['segment_run'])
#lastSegment=segment_run_table['segment_run'][-1]
#lastSegmentStart= lastSegment[0]
#lastSegmentFragCount = lastSegment[1]
#print 'totalFrags',totalFrags
#first_frag_number = frag_start[0]['first']
#startFragOfLastSegment= first_frag_number +totalFrags - lastSegmentFragCount
#for (i, frag_number) in zip(range(1, lastSegmentFragCount+1), itertools.count(startFragOfLastSegment)):
# res.append((lastSegmentStart,frag_number )) #this was i, i am using first segement start
#return res
#segment_run_entry = segment_run_table['segment_run'][0]
#print 'segment_run_entry',segment_run_entry,segment_run_table
#n_frags = segment_run_entry[1]
#startingPoint = segment_run_entry[0]
#fragment_run_entry_table = boot_info['fragments'][0]['fragments']
#frag_entry_index = 0
#first_frag_number = fragment_run_entry_table[0]['first']
#first_frag_number=(startingPoint*n_frags) -(n_frags)+1
#print 'THENUMBERS',startingPoint,n_frags,first_frag_number
#for (i, frag_number) in zip(range(1, n_frags+1), itertools.count(first_frag_number)):
# res.append((startingPoint,frag_number )) #this was i, i am using first segement start
#return res
def join(base,url):
join = urlparse.urljoin(base,url)
url = urlparse.urlparse(join)
path = posixpath.normpath(url[2])
return urlparse.urlunparse(
(url.scheme,url.netloc,path,url.params,url.query,url.fragment)
)
def _add_ns(prop):
#print 'F4Mversion',F4Mversion
return '{http://ns.adobe.com/f4m/%s}%s' %(F4Mversion, prop)
#class ReallyQuietDownloader(youtube_dl.FileDownloader):
# def to_screen(sef, *args, **kargs):
# pass
class F4MDownloader():
"""
A downloader for f4m manifests or AdobeHDS.
"""
outputfile =''
clientHeader=None
cookieJar=cookielib.LWPCookieJar()
def __init__(self):
self.init_done=False
def getUrl(self,url, ischunkDownloading=False):
try:
post=None
print 'url',url
#openner = urllib2.build_opener(urllib2.HTTPHandler, urllib2.HTTPSHandler)
cookie_handler = urllib2.HTTPCookieProcessor(self.cookieJar)
openner = urllib2.build_opener(cookie_handler, urllib2.HTTPBasicAuthHandler(), urllib2.HTTPHandler())
if post:
req = urllib2.Request(url, post)
else:
req = urllib2.Request(url)
ua_header=False
if self.clientHeader:
for n,v in self.clientHeader:
req.add_header(n,v)
if n=='User-Agent':
ua_header=True
if not ua_header:
req.add_header('User-Agent','Mozilla/5.0 (Windows NT 6.1; Win64; x64; Trident/7.0; rv:11.0) like Gecko')
#response = urllib2.urlopen(req)
if self.proxy and ( (not ischunkDownloading) or self.use_proxy_for_chunks ):
req.set_proxy(self.proxy, 'http')
response = openner.open(req)
data=response.read()
return data
except:
print 'Error in getUrl'
traceback.print_exc()
return None
def _write_flv_header2(self, stream):
"""Writes the FLV header and the metadata to stream"""
# FLV header
stream.write(b'FLV\x01')
stream.write(b'\x01')
stream.write(b'\x00\x00\x00\x09')
# FLV File body
stream.write(b'\x00\x00\x00\x09')
def _write_flv_header(self, stream, metadata):
"""Writes the FLV header and the metadata to stream"""
# FLV header
stream.write(b'FLV\x01')
stream.write(b'\x05')
stream.write(b'\x00\x00\x00\x09')
# FLV File body
stream.write(b'\x00\x00\x00\x00')
# FLVTAG
if metadata:
stream.write(b'\x12') # Script data
stream.write(pack('!L',len(metadata))[1:]) # Size of the metadata with 3 bytes
stream.write(b'\x00\x00\x00\x00\x00\x00\x00')
stream.write(metadata)
# All this magic numbers have been extracted from the output file
# produced by AdobeHDS.php (https://github.com/K-S-V/Scripts)
stream.write(b'\x00\x00\x01\x73')
def init(self, out_stream, url, proxy=None,use_proxy_for_chunks=True,g_stopEvent=None, maxbitrate=0, auth='',swf=None):
try:
self.init_done=False
self.total_frags=0
self.init_url=url
self.clientHeader=None
self.status='init'
self.proxy = proxy
self.auth=auth
#self.auth="pvtoken=exp%3D9999999999%7Eacl%3D%252f%252a%7Edata%3DZXhwPTE0MDYzMDMxMTV+YWNsPSUyZip+ZGF0YT1wdmMsc35obWFjPWQxODA5MWVkYTQ4NDI3NjFjODhjOWQwY2QxNTk3YTI0MWQwOWYwNWI1N2ZmMDE0ZjcxN2QyMTVjZTJkNmJjMDQ%3D%2196e4sdLWrezE46RaCBzzP43/LEM5en2KujAosbeDimQ%3D%7Ehmac%3DACF8A1E4467676C9BCE2721CA5EFF840BD6ED1780046954039373A3B0D942ADC&hdntl=exp=1406303115~acl=%2f*~data=hdntl~hmac=4ab96fa533fd7c40204e487bfc7befaf31dd1f49c27eb1f610673fed9ff97a5f&als=0,2,0,0,0,NaN,0,0,0,37,f,52293145.57,52293155.9,t,s,GARWLHLMHNGA,2.11.3,37&hdcore=2.11.3"
if self.auth ==None or self.auth =='None' :
self.auth=''
if self.proxy and len(self.proxy)==0:
self.proxy=None
self.use_proxy_for_chunks=use_proxy_for_chunks
self.out_stream=out_stream
self.g_stopEvent=g_stopEvent
self.maxbitrate=maxbitrate
if '|' in url:
sp = url.split('|')
url = sp[0]
self.clientHeader = sp[1]
self.clientHeader= urlparse.parse_qsl(self.clientHeader)
print 'header recieved now url and headers are',url, self.clientHeader
self.status='init done'
self.url=url
self.swf=swf
#self.downloadInternal( url)
return self.preDownoload()
#os.remove(self.outputfile)
except:
traceback.print_exc()
self.status='finished'
return False
def preDownoload(self):
global F4Mversion
try:
self.seqNumber=0
self.live=False #todo find if its Live or not
man_url = self.url
url=self.url
print 'Downloading f4m manifest'
print man_url
manifest = self.getUrl(man_url)#.read()
print manifest.encode('ascii','ignore')
print '^^^^^^^^'
if not manifest:
return False
print len(manifest)
try:
print manifest
except: pass
self.status='manifest done'
#self.report_destination(filename)
#dl = ReallyQuietDownloader(self.ydl, {'continuedl': True, 'quiet': True, 'noprogress':True})
version_fine="xmlns=\".*?\/([0-9].*?)\""
F4Mversion =re.findall(version_fine, manifest)[0]
#print F4Mversion,_add_ns('media')
auth_patt='<pv-2.0>(.*?)<'
auth_obj =re.findall(auth_patt, manifest)
self.auth20=''
if auth_obj and len(auth_obj)>0:
self.auth20=auth_obj[0] #not doing anything for time being
print 'auth got from xml',self.auth,self.auth20
#quick for one example where the xml was wrong.
if '\"bootstrapInfoId' in manifest:
manifest=manifest.replace('\"bootstrapInfoId','\" bootstrapInfoId')
doc = etree.fromstring(manifest)
print doc
# Added the-one 05082014
# START
# Check if manifest defines a baseURL tag
baseURL_tag = doc.find(_add_ns('baseURL'))
if baseURL_tag != None:
man_url = baseURL_tag.text
url = man_url
self.url = url
print 'base url defined as: %s' % man_url
# END
try:
#formats = [(int(f.attrib.get('bitrate', -1)),f) for f in doc.findall(_add_ns('media'))]
formats=[]
for f in doc.findall(_add_ns('media')):
vtype=f.attrib.get('type', '')
if f.attrib.get('type', '')=='video' or vtype=='' :
formats.append([int(f.attrib.get('bitrate', -1)),f])
print 'format works',formats
except:
formats=[(int(0),f) for f in doc.findall(_add_ns('media'))]
#print 'formats',formats
formats = sorted(formats, key=lambda f: f[0])
if self.maxbitrate==0:
rate, media = formats[-1]
elif self.maxbitrate==-1:
rate, media = formats[0]
else: #find bitrate
brselected=None
rate, media=None,None
for r, m in formats:
if r<=self.maxbitrate:
rate, media=r,m
else:
break
if media==None:
rate, media = formats[-1]
dest_stream = self.out_stream
print 'rate selected',rate
self.metadata=None
try:
self.metadata = base64.b64decode(media.find(_add_ns('metadata')).text)
print 'metadata stream read done'#,media.find(_add_ns('metadata')).text
#self._write_flv_header(dest_stream, metadata)
#dest_stream.flush()
except: pass
# Modified the-one 05082014
# START
# url and href can be used interchangeably
# so if url attribute is not present
# check for href attribute
try:
mediaUrl=media.attrib['url']
except:
mediaUrl=media.attrib['href']
# END
# Added the-one 05082014
# START
# if media url/href points to another f4m file
if '.f4m' in mediaUrl:
sub_f4m_url = join(man_url,mediaUrl)
print 'media points to another f4m file: %s' % sub_f4m_url
print 'Downloading f4m sub manifest'
sub_manifest = self.getUrl(sub_f4m_url)#.read()
if not sub_manifest:
return False
print len(sub_manifest)
try:
print sub_manifest
except: pass
self.status='sub manifest done'
F4Mversion =re.findall(version_fine, sub_manifest)[0]
doc = etree.fromstring(sub_manifest)
print doc
media = doc.find(_add_ns('media'))
if media == None:
return False
try:
self.metadata = base64.b64decode(media.find(_add_ns('metadata')).text)
print 'metadata stream read done'
except: pass
try:
mediaUrl=media.attrib['url']
except:
mediaUrl=media.attrib['href']
# END
try:
bootStrapID = media.attrib['bootstrapInfoId']
except: bootStrapID='xx'
#print 'mediaUrl',mediaUrl
base_url = join(man_url,mediaUrl)#compat_urlparse.urljoin(man_url,media.attrib['url'])
keybase_url=join(man_url,'key_')
if mediaUrl.endswith('/') and not base_url.endswith('/'):
base_url += '/'
self.base_url=base_url
self.keybase_url=keybase_url
bsArray=doc.findall(_add_ns('bootstrapInfo'))
print 'bootStrapID',bootStrapID
#bootStrapID='bootstrap_450'
bootstrap=self.getBootStrapWithId(bsArray,bootStrapID)
if bootstrap==None: #if not available then find any!
print 'bootStrapID NOT Found'
bootstrap=doc.findall(_add_ns('bootstrapInfo'))[0]
else:
print 'found bootstrap with id',bootstrap
#print 'bootstrap',bootstrap
bootstrapURL1=''
try:
bootstrapURL1=bootstrap.attrib['url']
except: pass
bootstrapURL=''
bootstrapData=None
queryString=None
if bootstrapURL1=='':
bootstrapData=base64.b64decode(doc.findall(_add_ns('bootstrapInfo'))[0].text)
#
else:
from urlparse import urlparse
queryString = urlparse(url).query
print 'queryString11',queryString
if len(queryString)==0: queryString=None
if queryString==None or '?' in bootstrap.attrib['url']:
bootstrapURL = join(man_url,bootstrap.attrib['url'])# take out querystring for later
queryString = urlparse(bootstrapURL).query
print 'queryString override',queryString
if len(queryString)==0:
queryString=None
if len(self.auth)>0:
bootstrapURL+='?'+self.auth
queryString=self.auth#self._pv_params('',self.auth20)#not in use
elif len(self.auth20)>0:
queryString=self._pv_params(self.swf,self.auth20)
bootstrapURL+='?'+queryString
else:
print 'queryString!!',queryString
bootstrapURL = join(man_url,bootstrap.attrib['url'])+'?'+queryString
if len(self.auth)>0:
authval=self.auth#self._pv_params('',self.auth20)#not in use
bootstrapURL = join(man_url,bootstrap.attrib['url'])+'?'+authval
queryString=authval
elif len(self.auth20)>0:
authval=self._pv_params(self.swf,self.auth20)#requires swf param
bootstrapURL = join(man_url,bootstrap.attrib['url'])+'?'+authval
queryString=authval
print 'bootstrapURL',bootstrapURL
if queryString==None:
queryString=''
self.bootstrapURL=bootstrapURL
self.queryString=queryString
self.bootstrap, self.boot_info, self.fragments_list,self.total_frags=self.readBootStrapInfo(bootstrapURL,bootstrapData)
self.init_done=True
return True
except:
traceback.print_exc()
return False
def readAKKey(self, data):
messageKeyExists=False
key=""
firstByte=ord(data[0])
pos=1
returnIV=None
if firstByte==12: #version12
pos+=4+4+2+1;
# print 'indeedddd',firstByte
# print 'data',repr(data)
messageByte=ord(data[pos])
pos+=1
messageKeyExists=(messageByte & 4) > 0;
messageIV=(messageByte & 2) > 0;
if messageIV:
pos+=16
# print 'IV exists'
if messageKeyExists:
# print 'Message Key exists!!!'
returnIV=data[pos-16:pos]
d = str(data[pos]);
pos+=1
key = d;
while(d != '\x00'):
d = str(data[pos]);
pos+=1
if d != '\x00':
key+= d;
else:
print 'SOMETHING WRONG.... got other than 12'
print 1/0#shouldn't come where
return messageKeyExists, key,pos,returnIV
def getFrames(self,box_data, remainingdata):
frames=[]
KeepProcessing = False;
currentStep= 0;
tagLen = 0;
if(box_data):
if remainingdata and len(remainingdata)>0:
box_data=remainingdata+box_data
remainingdata=None
lookForTagStart = 0;
KeepProcessing = True;
while(KeepProcessing and lookForTagStart<len(box_data)):
currentStep = ord(box_data[lookForTagStart]);
tagLen = ord(box_data[lookForTagStart + 1]) << 16 | ord(box_data[lookForTagStart + 2]) << 8 | ord(box_data[lookForTagStart + 3]) & 255;
nextTag = lookForTagStart + 11 + tagLen + 4
if (nextTag > len(box_data) and currentStep > 0):
remainingdata = [];
remainingdata=box_data[lookForTagStart:]
KeepProcessing = False;
elif (currentStep > 0):
chunk = []
chunk=box_data[lookForTagStart:lookForTagStart+tagLen + 11 + 4]
frames.append((1,chunk))
elif (currentStep == 0):
KeepProcessing = False;
#if nextTag==len(box_data):
# KeepProcessing=False
#print nextTag, len(box_data)
lookForTagStart = nextTag;
return frames,remainingdata
# #def AES(self,key):
# return Rijndael(key, keySize=16, blockSize=16, padding=padWithPadLen())
# def AES_CBC(self,key):
# return CBC(blockCipherInstance=AES(key))
def addBytesToOutput(self,prefix,data,post,segmentid,buffer):
dataLen=0
if data and len(data)>0:
dataLen=len(data)
#print 'Incomming',repr(prefix)
prefix=list(prefix)
prefix[3]=chr(dataLen & 255)
prefix[2]=chr(dataLen >> 8 & 255);
prefix[1]=chr(dataLen >> 16 & 255);
#print repr(prefix)
prefix=''.join(prefix)
#print repr(prefix)
#print len(prefix)
finalArray=prefix
if data and len(data)>0:
finalArray+=data
if post and len(post):
finalArray+=post
# with open("c:\\temp\\myfile.mp4", 'a+b') as output:
# output.write(finalArray)
lenReturned=len(finalArray)
buffer.write(finalArray)
buffer.flush()
return lenReturned
def keep_sending_video(self,dest_stream, segmentToStart=None, totalSegmentToSend=0):
try:
self.status='download Starting'
self.downloadInternal(self.url,dest_stream,segmentToStart,totalSegmentToSend)
except:
traceback.print_exc()
self.status='finished'
def downloadInternal(self,url,dest_stream ,segmentToStart=None,totalSegmentToSend=0):
global F4Mversion
try:
#dest_stream = self.out_stream
queryString=self.queryString
print 'segmentToStart',segmentToStart
if self.live or segmentToStart==0 or segmentToStart==None:
print 'writing metadata'#,len(self.metadata)
self._write_flv_header(dest_stream, self.metadata)
dest_stream.flush()
#elif segmentToStart>0 and not self.live:
# self._write_flv_header2(dest_stream)
# dest_stream.flush()
url=self.url
bootstrap, boot_info, fragments_list,total_frags=(self.bootstrap, self.boot_info, self.fragments_list,self.total_frags)
print boot_info, fragments_list,total_frags
self.status='bootstrap done'
self.status='file created'
self.downloaded_bytes = 0
self.bytes_in_disk = 0
self.frag_counter = 0
start = time.time()
frags_filenames = []
self.seqNumber=0
if segmentToStart and not self.live :
self.seqNumber=segmentToStart
if self.seqNumber>=total_frags:
self.seqNumber=total_frags-1
#for (seg_i, frag_i) in fragments_list:
#for seqNumber in range(0,len(fragments_list)):
self.segmentAvailable=0
frameSent=0
keyValue=""
keyData=None
firstPacket=True
remainingFrameData=None
decrypter=None
errors=0
file=0
lastIV=None
AKSession=None
while True:
#if not self.live:
# _write_flv_header2
try:
if self.g_stopEvent.isSet():
return
except: pass
seg_i, frag_i=fragments_list[self.seqNumber]
self.seqNumber+=1
frameSent+=1
name = u'Seg%d-Frag%d' % (seg_i, frag_i)
#print 'base_url',base_url,name
if AKSession:
name+=AKSession
url = self.base_url + name
if queryString and '?' not in url:
url+='?'+queryString
elif '?' in self.base_url:
url = self.base_url.split('?')[0] + name+'?'+self.base_url.split('?')[1]
#print(url),base_url,name
#frag_filename = u'%s-%s' % (tmpfilename, name)
#success = dl._do_download(frag_filename, {'url': url})
print 'downloading....',url
success=False
urlTry=0
while not success and urlTry<5:
success = self.getUrl(url,True)
if not success: xbmc.sleep(300)
urlTry+=1
print 'downloaded',not success==None,url
if not success:
return False
#with open(frag_filename, 'rb') as down:
if 1==1:
down_data = success#down.read()
reader = FlvReader(down_data)
while True:
_, box_type, box_data = reader.read_box_info()
print 'box_type',box_type,len(box_data)
#if box_type == b'afra':
# dest_stream.write(box_data)
# dest_stream.flush()
# break
if box_type == b'mdat':
isDrm=True if ord(box_data[0])&1 else False
boxlength=len(box_data)
seglen=0
file+=1
# if file>6: print 1/0
skip=False
doDecrypt=False
# print 'first byte',repr(box_data[0]),'kk'
isAkamaiEncrypted=True if ord(box_data[0])==11 or ord(box_data[0])==10 else False
if isAkamaiEncrypted:
# print 'Total MDAT count',len(box_data), len(box_data)%16
_loc8_ = ord(box_data[1]) << 16 | ord(box_data[2]) << 8 | ord(box_data[3]) & 255;
_loc9_ = box_data[11:11+_loc8_]
# print 'this is encrypted',len(_loc9_),_loc8_,repr(box_data[1:70])
keyExists,Key,dataread,lastIV=self.readAKKey(_loc9_)
if keyExists:
# print 'key exists and its len is ',_loc8_,repr(Key)
doDecrypt=True
keyValueNew=Key.split('key_')[1]
# print 'previous key is'+keyValue,'new key is',keyValueNew
if keyValue=="":
keyValue="_"+keyValueNew
AKSession=keyValue
keyurl = self.keybase_url +keyValueNew
if queryString and '?' not in keyurl:
keyurl+='?'+queryString+'&guid=CHRLRCMRHGUD'
print 'the key url is ',keyurl,'thanks'
keyData=self.getUrl(keyurl,False)
skip=False
firstPacket=True
elif not keyValue=="_"+keyValueNew:
keyValue="_"+keyValueNew#take new key
AKSession=keyValue
keyurl = self.keybase_url +keyValueNew
if queryString and '?' not in keyurl:
keyurl+='?'+queryString+'&guid=CHRLRCMRHGUD'
keyData=self.getUrl(keyurl,False)
firstPacket=True
#todo decryptit! and put it in box_data
#print 'before skip'
if skip:
break;
if keyData:
print 'key data is',repr(keyData),len(keyData)
#do decrypt here. frame by frame
#now generate frames
#put remaining in remaining
#for each frame decrypt and write and flush
try:
frames=[]
# print 'before frames data', repr(box_data[0:70])
frames,remainingFrameData=self.getFrames(box_data,remainingFrameData)
# print 'after frames data first frame', repr(frames[0][0:70])
#print 'frames',frames
for frame in frames:
data=frame[1]
datalen=ord(data[1]) << 16 | ord(data[2]) << 8 | ord(data[3]) & 255;
preFrame=len(data)
#print 'samp>',len(data),datalen,ord(data[0]) ,'<samp'
if firstPacket:
firstPacket=False
# data=data[0:datalen]
#print 'first>',len(data),ord(data[0]),datalen,'<first'
# else:
if 1==1:
#if not not key frame then decrypt else
firstByte=ord(data[0])
frameHeader=data[:11]
framePad=data[11 + datalen:11 + datalen+4];
if firstByte==10 or firstByte==11:
if firstByte==10:
frameHeader = list(frameHeader)
frameHeader[0]=chr(8)
frameHeader=''.join(frameHeader)
if firstByte==11:
frameHeader = list(frameHeader)
frameHeader[0]=chr(9)
frameHeader=''.join(frameHeader)
data=data[11:11+datalen]
#print 'sub>',len(data),firstByte,datalen,datalen%16,len(data)%16 ,'<sub'
keyExistsNew,KeyNew,dataread,ignoreIV=self.readAKKey(data)
# print 'dataread',dataread,keyExistsNew,KeyNew,ignoreIV
try:
data=akhds.tagDecrypt(data,keyData)
except:
print 'decryption error'
errors+=1
traceback.print_exc()
if errors>10: print 1/0
# print 'pre return size %d, %d %d'%(len(frameHeader),len(data), len(framePad))
seglen1=self.addBytesToOutput(frameHeader,data,framePad,1,dest_stream)
seglen+=seglen1
# print 'pre frame %d, after %d'%(preFrame,seglen1)
else:
print 'hmm no 10 or 11?'
# print 'pre return size %d, %d %d'%(len(frameHeader),len(data), len(framePad))
seglen1=self.addBytesToOutput(frameHeader,None,None,1,dest_stream)
seglen+=seglen1
# print 'pre frame %d, after %d'%(preFrame,seglen1)
#est_stream.write(data)
#dest_stream.flush()
#dest_stream.write(self.decryptData(data,keyData))
#dest_stream.flush()
except:
print traceback.print_exc()
self.g_stopEvent.set()
else:
dest_stream.write(box_data)
dest_stream.flush()
print 'box length is %d and seg total is %d'%(boxlength,seglen)
break
# Using the following code may fix some videos, but
# only in mplayer, VLC won't play the sound.
# mdat_reader = FlvReader(box_data)
# media_type = mdat_reader.read_unsigned_char()
# while True:
# if mdat_reader.read_unsigned_char() == media_type:
# if mdat_reader.read_unsigned_char() == 0x00:
# break
# dest_stream.write(pack('!B', media_type))
# dest_stream.write(b'\x00')
# dest_stream.write(mdat_reader.read())
# break
self.status='play'
if self.seqNumber==len(fragments_list) or (totalSegmentToSend>0 and frameSent==totalSegmentToSend):
if not self.live:
break
self.seqNumber=0
#todo if the url not available then get manifest and get the data again
total_frags=None
try:
bootstrap, boot_info, fragments_list,total_frags=self.readBootStrapInfo(self.bootstrapURL,None,updateMode=True,lastSegment=seg_i, lastFragement=frag_i)
except:
traceback.print_exc()
pass
if total_frags==None:
break
del self.downloaded_bytes
del self.frag_counter
except:
traceback.print_exc()
return
def getBootStrapWithId (self,BSarray, id):
try: