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# -*- coding: utf-8 -*- | |
import urllib | |
import requests | |
import json | |
import execjs | |
VIDEO_ID = 'lZnqmZ4ZTP8' | |
START_TOKEN = 'ytplayer.config = ' | |
END_TOKEN = ';ytplayer.load' | |
def convert_to_dict(data): | |
result = {} | |
list = data.split('&') | |
for item in list: | |
pair = item.split('=') | |
key = urllib.unquote_plus(pair[0]) | |
value = urllib.unquote_plus(pair[1]) | |
result[key] = value | |
return result | |
def parse_js(data): | |
start = data.find("""a.splice(0,b)""") | |
start = data.rfind(";var", 0 , start) | |
end = data.find("""return a.join("")};""", start) | |
js = data[start:end+len("""return a.join("")};""")] | |
start = js.find("""function """) | |
end = js.find("""(a)""" , start) | |
name = js[start+len("""function """):end] | |
return name, js | |
if __name__ == '__main__': | |
print "Using javascript interpreter:", execjs.get().name | |
headers = {'User-Agent':'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36', | |
'Accept-Language':'zh-CN,zh;q=0.8,zh-TW;q=0.6,en;q=0.4', | |
'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8', | |
'Accept-Encoding': 'gzip, deflate, sdch'} | |
response = requests.get("https://www.youtube.com/watch?v=%s" % VIDEO_ID, headers=headers) | |
data = response.content | |
start = data.find(START_TOKEN) | |
end = data.find(END_TOKEN) | |
data = data[start+len(START_TOKEN):end] | |
data = json.loads(data) | |
js = 'https:' + data['assets']['js'] | |
response = requests.get(js) | |
jscontent = response.content | |
func, jscontent = parse_js(jscontent) | |
ctxt = execjs.compile(jscontent) | |
data = data['args'] | |
print "Title:", data['title'] | |
list = data['adaptive_fmts'].split(',') | |
parsed = [] | |
for item in list: | |
info = convert_to_dict(item) | |
if info['url'].find("&signature=") == -1: | |
info['url'] = info['url'] +"&signature=" + ctxt.call(func, info['s']) | |
parsed.append(info) | |
for item in parsed: | |
if item['type'].startswith("video"): | |
print "%-35s|%-10s%2sfps|%-10s|%s" % (item['type'], item['size'], item['fps'], "%0.2fMiB" % (float(item['clen'])/1024/1024), item['url']) | |
else: | |
print "%-35s|%-10s%5s|%-10s|%s" % (item['type'], "" , "" , "%0.2fMiB" % (float(item['clen'])/1024/1024), item['url']) |
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