m3u8视频下载工具

参考了这位仁兄的blog，有加密的m3u8视频下载以及解码方法_baidu_41902768的博客-CSDN博客_m3u8加密视频怎么解密

对其进行了进一步包装，支持直接输入网页页面的url直接下载视频，仅匹配到页面中第一个m3u8

分享给大家

此python脚本基于linux环境编写，如需在windows上使用，需开启WSL，然后在windows软件商店安装ubuntu后使用

废话不多说，直接上代码

#!/usr/bin/pythonimport requests
import os
import re
from Crypto.Cipher import AES
import time
import tempfile
import sys
import optparseclass DownloadError(RuntimeError):def __init__(self, arg):self.args = argclass UrlError(RuntimeError):def __init__(self, arg):self.args = argdef progressbar(tot, pre, content = None):'''max_bar means the total number of tasks.i means the number of finished tasks.'''con_str = ""if  content != None:con_str = " " + contentmax_bar = 30finish = int(pre*max_bar/tot)unfinish = (max_bar - finish)bar = "[{}{}]".format(finish * "=", unfinish * " ")counts = " (%d/%d) " % (pre, tot)percent = str(int(pre * 100/tot)) + "%"if pre < tot:sys.stdout.write(bar + counts + percent + con_str + "\r")else:sys.stdout.write(bar + counts + percent + con_str + "\n")sys.stdout.flush()def del_path(path):if os.path.isdir(path):del_list = os.listdir(path)for f in del_list:file_path = os.path.join(path, f)del_path(file_path)os.rmdir(path)else:os.remove(path)def cal_time(fun):def inner_wrapper(*args):start = time.time()fun(*args)end = time.time()print('Time spent is ' + str(round(end - start,1)))return inner_wrapperdef request_net_content(url):headers = {'user-agent': 'Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_8; en-us) AppleWebKit/534.50'}request_res = Noneretry_times = 0while retry_times < 10:try:request_res = requests.get(url, timeout=(5, 15), headers = headers)breakexcept requests.exceptions.RequestException:retry_times += 1print("\nrequest timeout for: '%s' and retry again (%d/10)" % (url, retry_times))if retry_times >= 10:raise DownloadError("download retry 10 times, and always no response!")return request_resdef get_real_url(last_url, url):matchUrl = re.match(r'(http[s]?://.*)', url)if matchUrl is not None:real_url = matchUrl.group(1)else:if url[0] == '/':base_url_match = re.match(r'(http[s]?://[^/]*)/.*', last_url)if base_url_match is None:raise UrlError("last_url '%s' is not valid !!!" % (last_url,))base_url = base_url_match.group(1)real_url = base_url + urlelse:path_end_name = os.path.basename(last_url)parent_url = last_url[:-len(path_end_name)]real_url = parent_url + urlreturn real_urldef write_split_to_out_fd(split_content, out_fd, cryptor):if len(split_content) > 0:if cryptor is not None:split_content = cryptor.decrypt(split_content)out_fd.write(split_content)else:raise ValueError("no value")def download_split(index, count, name, path, out_fd, url, cryptor):if os.path.exists(path):split_fd = Noneproc_ok = Truetry:progressbar(count, index, "proc '" + name + "'")split_fd = open(path, 'rb')split_content = split_fd.read()write_split_to_out_fd(split_content, out_fd, cryptor)except ValueError:proc_ok = Falseprint("\n'%s' zero content, redownload from '%s'" % (name, url,))if split_fd is not None:split_fd.close()if proc_ok:returndownload_count = 0while True:download_count += 1if download_count >= 6:print("\ndownload '%s' from '%s' always failed, ignore" % (name, url,))breaktry:progressbar(count, index, "download '" + name + "'")split_content = request_net_content(url).contentwith open(path, 'wb+') as split_fd:split_fd.write(split_content)write_split_to_out_fd(split_content, out_fd, cryptor)breakexcept ValueError:print("\n'%s' zero content, %dth redownload" % (name, download_count,))except DownloadError:print("\n'%s' download error, %dth redownload" % (name, download_count,))def download_m3u8(m3u8_url, temp_dir, out_fd):m3u8_res = request_net_content(m3u8_url)m3u8_text = m3u8_res.textprint("download m3u8: '%s'" % (m3u8_url,))lines = m3u8_text.splitlines()if lines[0] != "#EXTM3U" :print("not a valid m3u8 file, first line is '%s'\n" % (lines[0],))returnm3u8_split_cryptor = Noneitem_count = 0for line in lines:matchInfo = re.match(r'#EXT.*', line)info_key = Noneif matchInfo is None:item_count += 1else:matchInfo = re.match(r'#(EXT[^:]*):(.*)', line)if matchInfo is not None:info_key = matchInfo.group(1)info_val = matchInfo.group(2)#print("info_key is '%s'" % (info_key,))#print("info_val is '%s'" % (info_val,))if info_key == "EXT-X-KEY":key_url_search = re.search(r'URI="(.*)"', info_val)if key_url_search is None:print("error! can not get url for key")exit(1)key_url = get_real_url(m3u8_url, key_url_search.group(1))#print("key_url is '%s'" % (key_url,))key_url_res = request_net_content(key_url).textprint('key text is ' + key_url_res)m3u8_split_cryptor = AES.new(key_url_res, AES.MODE_CBC, b'0000000000000000')item_index = 0for line in lines:matchInfo = re.match(r'#EXT.*', line)itemUrl = Noneinfo_key = Noneif matchInfo is None:itemUrl = get_real_url(m3u8_url, line)if itemUrl is not None:# proc url, m3u8 or video splitdl_url_match = re.match(r'(http[s]?://[^\?]*)[\?]?.*', itemUrl)url_no_para = itemUrlif dl_url_match is not None:url_no_para = dl_url_match.group(1)if url_no_para.endswith("m3u8"):print("redirect to: '%s'" % (itemUrl,))download_m3u8(itemUrl, temp_dir, out_fd)else:item_index += 1split_name = os.path.basename(url_no_para)split_path = os.path.join(temp_dir, split_name)# download ts filedownload_split(item_index, item_count, split_name, split_path, out_fd,itemUrl, m3u8_split_cryptor)@cal_time
def video_downlowner(options):url = options.urlout_file = options.out_fileif options.temp is None:temp_dir = tempfile.mkdtemp(suffix='', prefix='m3u8_', dir='/tmp')print("temp file save to dir: " + temp_dir)else:temp_dir=options.tempout_name = os.path.basename(out_file)m3u8_url = Noneif options.m3u8 is not None:m3u8_url = urlelse:result = request_net_content(url)html_txt = re.sub("\\\/", "/", result.text)searchObj = re.search(r'"url":"(http[s]?://.*?\.m3u8)"', html_txt)if searchObj is not None:m3u8_url = searchObj.group(1)else:print("no m3u8 in given url")if m3u8_url is not None:out_fd = open(out_file, "wb+")download_m3u8(m3u8_url, temp_dir, out_fd)out_fd.close()if options.temp is None:del_path(temp_dir)def main():usage =  "usage: %prog <-u url> <-o out_file> [-t/--temp]"usage += "       %prog <-m m3u8> <-o out_file> [-t/--temp]"parse = optparse.OptionParser(usage)parse.add_option('-u', '--url', dest='url', action='store', \type='str', help='the url of webpage play this video')parse.add_option('-o', '--output-file', dest='out_file', action='store', \type='str', help='name of output video file')parse.add_option('-t', '--temp', dest='temp', action='store', \type='str', help='give the temp dir which save split video')parse.add_option('-m', '--m3u8', dest='m3u8', action='store_true', \help='if <url> is m3u8, add this option')options,args=parse.parse_args()if options.url is None and options.m3u8 is None:print("please give url or m3u8 to download\n")exit(1)if options.out_file is None:print("please give out file\n")exit(1)video_downlowner(options)if __name__ == '__main__':main()

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