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main.py
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# -*- coding: utf-8 -*-
import argparse
import glob
import json
import logging
import os
import re
import subprocess
import sys
import time
from html.parser import HTMLParser as compat_HTMLParser
from pathlib import Path
from typing import IO
import m3u8
import requests
import yt_dlp
from bs4 import BeautifulSoup
from coloredlogs import ColoredFormatter
from dotenv import load_dotenv
from pathvalidate import sanitize_filename
from requests.exceptions import ConnectionError as conn_error
from tqdm import tqdm
from _version import __version__
from constants import *
from tls import SSLCiphers
from utils import extract_kid
from vtt_to_srt import convert
retry = 3
cookies = ""
downloader = None
logger: logging.Logger = None
dl_assets = False
skip_lectures = False
dl_captions = False
caption_locale = "en"
quality = None
bearer_token = None
portal_name = None
course_name = None
keep_vtt = False
skip_hls = False
concurrent_downloads = 10
disable_ipv6 = False
save_to_file = None
load_from_file = None
course_url = None
info = None
keys = {}
id_as_course_name = False
is_subscription_course = False
use_h265 = False
h265_crf = 28
h265_preset = "medium"
use_nvenc = False
# from https://stackoverflow.com/a/21978778/9785713
def log_subprocess_output(prefix: str, pipe: IO[bytes]):
if pipe:
for line in iter(lambda: pipe.read(1), ""):
logger.debug("[%s]: %r", prefix, line.decode("utf8").strip())
pipe.flush()
# this is the first function that is called, we parse the arguments, setup the logger, and ensure that required directories exist
def pre_run():
global cookies, dl_assets, skip_lectures, dl_captions, caption_locale, quality, bearer_token, portal_name, course_name, keep_vtt, skip_hls, concurrent_downloads, disable_ipv6, load_from_file, save_to_file, bearer_token, course_url, info, logger, keys, id_as_course_name, is_subscription_course, LOG_LEVEL, use_h265, h265_crf, h265_preset, use_nvenc
# make sure the directory exists
if not os.path.exists(DOWNLOAD_DIR):
os.makedirs(DOWNLOAD_DIR)
# make sure the logs directory exists
if not os.path.exists(LOG_DIR_PATH):
os.makedirs(LOG_DIR_PATH, exist_ok=True)
parser = argparse.ArgumentParser(description="Udemy Downloader")
parser.add_argument("-c", "--course-url", dest="course_url", type=str, help="The URL of the course to download", required=True)
parser.add_argument(
"-b",
"--bearer",
dest="bearer_token",
type=str,
help="The Bearer token to use",
)
parser.add_argument(
"-q",
"--quality",
dest="quality",
type=int,
help="Download specific video quality. If the requested quality isn't available, the closest quality will be used. If not specified, the best quality will be downloaded for each lecture",
)
parser.add_argument(
"-l",
"--lang",
dest="lang",
type=str,
help="The language to download for captions, specify 'all' to download all captions (Default is 'en')",
)
parser.add_argument(
"-cd",
"--concurrent-downloads",
dest="concurrent_downloads",
type=int,
help="The number of maximum concurrent downloads for segments (HLS and DASH, must be a number 1-30)",
)
parser.add_argument(
"--disable-ipv6",
dest="disable_ipv6",
action="store_true",
help="If specified, ipv6 will be disabled in aria2",
)
parser.add_argument(
"--skip-lectures",
dest="skip_lectures",
action="store_true",
help="If specified, lectures won't be downloaded",
)
parser.add_argument(
"--download-assets",
dest="download_assets",
action="store_true",
help="If specified, lecture assets will be downloaded",
)
parser.add_argument(
"--download-captions",
dest="download_captions",
action="store_true",
help="If specified, captions will be downloaded",
)
parser.add_argument(
"--keep-vtt",
dest="keep_vtt",
action="store_true",
help="If specified, .vtt files won't be removed",
)
parser.add_argument(
"--skip-hls",
dest="skip_hls",
action="store_true",
help="If specified, hls streams will be skipped (faster fetching) (hls streams usually contain 1080p quality for non-drm lectures)",
)
parser.add_argument(
"--info",
dest="info",
action="store_true",
help="If specified, only course information will be printed, nothing will be downloaded",
)
parser.add_argument(
"--id-as-course-name",
dest="id_as_course_name",
action="store_true",
help="If specified, the course id will be used in place of the course name for the output directory. This is a 'hack' to reduce the path length",
)
parser.add_argument(
"-sc",
"--subscription-course",
dest="is_subscription_course",
action="store_true",
help="Mark the course as a subscription based course, use this if you are having problems with the program auto detecting it",
)
parser.add_argument(
"--save-to-file",
dest="save_to_file",
action="store_true",
help="If specified, course content will be saved to a file that can be loaded later with --load-from-file, this can reduce processing time (Note that asset links expire after a certain amount of time)",
)
parser.add_argument(
"--load-from-file",
dest="load_from_file",
action="store_true",
help="If specified, course content will be loaded from a previously saved file with --save-to-file, this can reduce processing time (Note that asset links expire after a certain amount of time)",
)
parser.add_argument(
"--log-level",
dest="log_level",
type=str,
help="Logging level: one of DEBUG, INFO, ERROR, WARNING, CRITICAL (Default is INFO)",
)
parser.add_argument(
"--use-h265",
dest="use_h265",
action="store_true",
help="If specified, videos will be encoded with the H.265 codec",
)
parser.add_argument(
"--h265-crf",
dest="h265_crf",
type=int,
default=28,
help="Set a custom CRF value for H.265 encoding. FFMPEG default is 28",
)
parser.add_argument(
"--h265-preset",
dest="h265_preset",
type=str,
default="medium",
help="Set a custom preset value for H.265 encoding. FFMPEG default is medium",
)
parser.add_argument(
"--use-nvenc",
dest="use_nvenc",
action="store_true",
help="Whether to use the NVIDIA hardware transcoding for H.265. Only works if you have a supported NVIDIA GPU and ffmpeg with nvenc support",
)
parser.add_argument("-v", "--version", action="version", version="You are running version {version}".format(version=__version__))
args = parser.parse_args()
if args.download_assets:
dl_assets = True
if args.lang:
caption_locale = args.lang
if args.download_captions:
dl_captions = True
if args.skip_lectures:
skip_lectures = True
if args.quality:
quality = args.quality
if args.keep_vtt:
keep_vtt = args.keep_vtt
if args.skip_hls:
skip_hls = args.skip_hls
if args.concurrent_downloads:
concurrent_downloads = args.concurrent_downloads
if concurrent_downloads <= 0:
# if the user gave a number that is less than or equal to 0, set cc to default of 10
concurrent_downloads = 10
elif concurrent_downloads > 30:
# if the user gave a number thats greater than 30, set cc to the max of 30
concurrent_downloads = 30
if args.disable_ipv6:
disable_ipv6 = args.disable_ipv6
if args.load_from_file:
load_from_file = args.load_from_file
if args.save_to_file:
save_to_file = args.save_to_file
if args.bearer_token:
bearer_token = args.bearer_token
if args.course_url:
course_url = args.course_url
if args.info:
info = args.info
if args.use_h265:
use_h265 = True
if args.h265_crf:
h265_crf = args.h265_crf
if args.h265_preset:
h265_preset = args.h265_preset
if args.use_nvenc:
use_nvenc = True
if args.log_level:
if args.log_level.upper() == "DEBUG":
LOG_LEVEL = logging.DEBUG
elif args.log_level.upper() == "INFO":
LOG_LEVEL = logging.INFO
elif args.log_level.upper() == "ERROR":
LOG_LEVEL = logging.ERROR
elif args.log_level.upper() == "WARNING":
LOG_LEVEL = logging.WARNING
elif args.log_level.upper() == "CRITICAL":
LOG_LEVEL = logging.CRITICAL
else:
print(f"Invalid log level: {args.log_level}; Using INFO")
LOG_LEVEL = logging.INFO
# setup a logger
logger = logging.getLogger(__name__)
logging.root.setLevel(LOG_LEVEL)
# create a colored formatter for the console
console_formatter = ColoredFormatter(LOG_FORMAT, datefmt=LOG_DATE_FORMAT)
# create a regular non-colored formatter for the log file
file_formatter = logging.Formatter(LOG_FORMAT, datefmt=LOG_DATE_FORMAT)
# create a handler for console logging
stream = logging.StreamHandler()
stream.setLevel(LOG_LEVEL)
stream.setFormatter(console_formatter)
# create a handler for file logging
file_handler = logging.FileHandler(LOG_FILE_PATH)
file_handler.setFormatter(file_formatter)
# construct the logger
logger = logging.getLogger("udemy-downloader")
logger.setLevel(LOG_LEVEL)
logger.addHandler(stream)
logger.addHandler(file_handler)
if args.id_as_course_name:
id_as_course_name = args.id_as_course_name
if args.is_subscription_course:
is_subscription_course = args.is_subscription_course
Path(DOWNLOAD_DIR).mkdir(parents=True, exist_ok=True)
Path(SAVED_DIR).mkdir(parents=True, exist_ok=True)
# Get the keys
if os.path.exists(KEY_FILE_PATH):
with open(KEY_FILE_PATH, encoding="utf8", mode="r") as keyfile:
keys = json.loads(keyfile.read())
else:
logger.warning("> Keyfile not found! You won't be able to decrypt videos!")
# Read cookies from file
if os.path.exists(COOKIE_FILE_PATH):
with open(COOKIE_FILE_PATH, encoding="utf8", mode="r") as cookiefile:
cookies = cookiefile.read()
cookies = cookies.rstrip()
else:
logger.warning(
"No cookies.txt file was found, you won't be able to download subscription courses! You can ignore ignore this if you don't plan to download a course included in a subscription plan."
)
class Udemy:
def __init__(self, bearer_token):
self.session = None
self.bearer_token = None
self.auth = UdemyAuth(cache_session=False)
if not self.session:
self.session, self.bearer_token = self.auth.authenticate(bearer_token=bearer_token)
if self.session and self.bearer_token:
self.session._headers.update({"Authorization": "Bearer {}".format(self.bearer_token)})
self.session._headers.update({"X-Udemy-Authorization": "Bearer {}".format(self.bearer_token)})
logger.info("Login Success")
else:
logger.fatal("Login Failure! You are probably missing an access token!")
sys.exit(1)
def _extract_supplementary_assets(self, supp_assets, lecture_counter):
_temp = []
for entry in supp_assets:
title = sanitize_filename(entry.get("title"))
filename = entry.get("filename")
download_urls = entry.get("download_urls")
external_url = entry.get("external_url")
asset_type = entry.get("asset_type").lower()
id = entry.get("id")
if asset_type == "file":
if download_urls and isinstance(download_urls, dict):
extension = filename.rsplit(".", 1)[-1] if "." in filename else ""
download_url = download_urls.get("File", [])[0].get("file")
_temp.append({"type": "file", "title": title, "filename": "{0:03d} ".format(lecture_counter) + filename, "extension": extension, "download_url": download_url, "id": id})
elif asset_type == "sourcecode":
if download_urls and isinstance(download_urls, dict):
extension = filename.rsplit(".", 1)[-1] if "." in filename else ""
download_url = download_urls.get("SourceCode", [])[0].get("file")
_temp.append({"type": "source_code", "title": title, "filename": "{0:03d} ".format(lecture_counter) + filename, "extension": extension, "download_url": download_url, "id": id})
elif asset_type == "externallink":
_temp.append({"type": "external_link", "title": title, "filename": "{0:03d} ".format(lecture_counter) + filename, "extension": "txt", "download_url": external_url, "id": id})
return _temp
def _extract_ppt(self, asset, lecture_counter):
_temp = []
download_urls = asset.get("download_urls")
filename = asset.get("filename")
id = asset.get("id")
if download_urls and isinstance(download_urls, dict):
extension = filename.rsplit(".", 1)[-1] if "." in filename else ""
download_url = download_urls.get("Presentation", [])[0].get("file")
_temp.append({"type": "presentation", "filename": "{0:03d} ".format(lecture_counter) + filename, "extension": extension, "download_url": download_url, "id": id})
return _temp
def _extract_file(self, asset, lecture_counter):
_temp = []
download_urls = asset.get("download_urls")
filename = asset.get("filename")
id = asset.get("id")
if download_urls and isinstance(download_urls, dict):
extension = filename.rsplit(".", 1)[-1] if "." in filename else ""
download_url = download_urls.get("File", [])[0].get("file")
_temp.append({"type": "file", "filename": "{0:03d} ".format(lecture_counter) + filename, "extension": extension, "download_url": download_url, "id": id})
return _temp
def _extract_ebook(self, asset, lecture_counter):
_temp = []
download_urls = asset.get("download_urls")
filename = asset.get("filename")
id = asset.get("id")
if download_urls and isinstance(download_urls, dict):
extension = filename.rsplit(".", 1)[-1] if "." in filename else ""
download_url = download_urls.get("E-Book", [])[0].get("file")
_temp.append({"type": "ebook", "filename": "{0:03d} ".format(lecture_counter) + filename, "extension": extension, "download_url": download_url, "id": id})
return _temp
def _extract_audio(self, asset, lecture_counter):
_temp = []
download_urls = asset.get("download_urls")
filename = asset.get("filename")
id = asset.get("id")
if download_urls and isinstance(download_urls, dict):
extension = filename.rsplit(".", 1)[-1] if "." in filename else ""
download_url = download_urls.get("Audio", [])[0].get("file")
_temp.append({"type": "audio", "filename": "{0:03d} ".format(lecture_counter) + filename, "extension": extension, "download_url": download_url, "id": id})
return _temp
def _extract_sources(self, sources, skip_hls):
_temp = []
if sources and isinstance(sources, list):
for source in sources:
label = source.get("label")
download_url = source.get("file")
if not download_url:
continue
if label.lower() == "audio":
continue
height = label if label else None
if height == "2160":
width = "3840"
elif height == "1440":
width = "2560"
elif height == "1080":
width = "1920"
elif height == "720":
width = "1280"
elif height == "480":
width = "854"
elif height == "360":
width = "640"
elif height == "240":
width = "426"
else:
width = "256"
if source.get("type") == "application/x-mpegURL" or "m3u8" in download_url:
if not skip_hls:
out = self._extract_m3u8(download_url)
if out:
_temp.extend(out)
else:
_type = source.get("type")
_temp.append(
{
"type": "video",
"height": height,
"width": width,
"extension": _type.replace("video/", ""),
"download_url": download_url,
}
)
return _temp
def _extract_media_sources(self, sources):
_temp = []
if sources and isinstance(sources, list):
for source in sources:
_type = source.get("type")
src = source.get("src")
if _type == "application/dash+xml":
out = self._extract_mpd(src)
if out:
_temp.extend(out)
return _temp
def _extract_subtitles(self, tracks):
_temp = []
if tracks and isinstance(tracks, list):
for track in tracks:
if not isinstance(track, dict):
continue
if track.get("_class") != "caption":
continue
download_url = track.get("url")
if not download_url or not isinstance(download_url, str):
continue
lang = track.get("language") or track.get("srclang") or track.get("label") or track["locale_id"].split("_")[0]
ext = "vtt" if "vtt" in download_url.rsplit(".", 1)[-1] else "srt"
_temp.append(
{
"type": "subtitle",
"language": lang,
"extension": ext,
"download_url": download_url,
}
)
return _temp
def _extract_m3u8(self, url):
"""extracts m3u8 streams"""
_temp = []
try:
resp = self.session._get(url)
resp.raise_for_status()
raw_data = resp.text
m3u8_object = m3u8.loads(raw_data)
playlists = m3u8_object.playlists
seen = set()
for pl in playlists:
resolution = pl.stream_info.resolution
codecs = pl.stream_info.codecs
if not resolution:
continue
if not codecs:
continue
width, height = resolution
download_url = pl.uri
if height not in seen:
seen.add(height)
_temp.append(
{
"type": "hls",
"height": height,
"width": width,
"extension": "mp4",
"download_url": download_url,
}
)
except Exception as error:
logger.error(f"Udemy Says : '{error}' while fetching hls streams..")
return _temp
def _extract_mpd(self, url):
"""extracts mpd streams"""
_temp = []
try:
ytdl = yt_dlp.YoutubeDL({"quiet": True, "no_warnings": True, "allow_unplayable_formats": True})
results = ytdl.extract_info(url, download=False, force_generic_extractor=True)
seen = set()
formats = results.get("formats")
format_id = results.get("format_id")
best_audio_format_id = format_id.split("+")[1]
# I forget what this was for
# best_audio = next((x for x in formats
# if x.get("format_id") == best_audio_format_id),
# None)
for f in formats:
if "video" in f.get("format_note"):
# is a video stream
format_id = f.get("format_id")
extension = f.get("ext")
height = f.get("height")
width = f.get("width")
if height and height not in seen:
seen.add(height)
_temp.append(
{
"type": "dash",
"height": str(height),
"width": str(width),
"format_id": f"{format_id},{best_audio_format_id}",
"extension": extension,
"download_url": f.get("manifest_url"),
}
)
else:
# unknown format type
# logger.debug(f"Unknown format type : {f}")
continue
except Exception:
logger.exception(f"Error fetching MPD streams")
return _temp
def extract_course_name(self, url):
"""
@author r0oth3x49
"""
obj = re.search(
r"(?i)(?://(?P<portal_name>.+?).udemy.com/(?:course(/draft)*/)?(?P<name_or_id>[a-zA-Z0-9_-]+))",
url,
)
if obj:
return obj.group("portal_name"), obj.group("name_or_id")
def extract_portal_name(self, url):
obj = re.search(r"(?i)(?://(?P<portal_name>.+?).udemy.com)", url)
if obj:
return obj.group("portal_name")
def _subscribed_courses(self, portal_name, course_name):
results = []
self.session._headers.update(
{
"Host": "{portal_name}.udemy.com".format(portal_name=portal_name),
"Referer": "https://{portal_name}.udemy.com/home/my-courses/search/?q={course_name}".format(portal_name=portal_name, course_name=course_name),
}
)
url = COURSE_SEARCH.format(portal_name=portal_name, course_name=course_name)
try:
webpage = self.session._get(url).content
webpage = webpage.decode("utf8", "ignore")
webpage = json.loads(webpage)
except conn_error as error:
logger.fatal(f"Udemy Says: Connection error, {error}")
time.sleep(0.8)
sys.exit(1)
except (ValueError, Exception) as error:
logger.fatal(f"Udemy Says: {error} on {url}")
time.sleep(0.8)
sys.exit(1)
else:
results = webpage.get("results", [])
return results
def _extract_course_info_json(self, url, course_id, portal_name):
self.session._headers.update({"Referer": url})
url = COURSE_INFO_URL.format(portal_name=portal_name, course_id=course_id)
try:
resp = self.session._get(url).json()
except conn_error as error:
logger.fatal(f"Udemy Says: Connection error, {error}")
time.sleep(0.8)
sys.exit(1)
else:
return resp
def _extract_course_json(self, url, course_id, portal_name):
self.session._headers.update({"Referer": url})
url = COURSE_URL.format(portal_name=portal_name, course_id=course_id)
try:
resp = self.session._get(url)
if resp.status_code in [502, 503, 504]:
logger.info("> The course content is large, using large content extractor...")
resp = self._extract_large_course_content(url=url)
else:
resp = resp.json()
except conn_error as error:
logger.fatal(f"Udemy Says: Connection error, {error}")
time.sleep(0.8)
sys.exit(1)
except (ValueError, Exception):
resp = self._extract_large_course_content(url=url)
return resp
else:
return resp
def _extract_large_course_content(self, url):
url = url.replace("10000", "50") if url.endswith("10000") else url
try:
data = self.session._get(url).json()
except conn_error as error:
logger.fatal(f"Udemy Says: Connection error, {error}")
time.sleep(0.8)
sys.exit(1)
else:
_next = data.get("next")
while _next:
logger.info("> Downloading course information.. ")
try:
resp = self.session._get(_next).json()
except conn_error as error:
logger.fatal(f"Udemy Says: Connection error, {error}")
time.sleep(0.8)
sys.exit(1)
else:
_next = resp.get("next")
results = resp.get("results")
if results and isinstance(results, list):
for d in resp["results"]:
data["results"].append(d)
return data
def _extract_course(self, response, course_name):
_temp = {}
if response:
for entry in response:
course_id = str(entry.get("id"))
published_title = entry.get("published_title")
if course_name in (published_title, course_id):
_temp = entry
break
return _temp
def _my_courses(self, portal_name):
results = []
try:
url = MY_COURSES_URL.format(portal_name=portal_name)
webpage = self.session._get(url).json()
except conn_error as error:
logger.fatal(f"Udemy Says: Connection error, {error}")
time.sleep(0.8)
sys.exit(1)
except (ValueError, Exception) as error:
logger.fatal(f"Udemy Says: {error}")
time.sleep(0.8)
sys.exit(1)
else:
results = webpage.get("results", [])
return results
def _subscribed_collection_courses(self, portal_name):
url = COLLECTION_URL.format(portal_name=portal_name)
courses_lists = []
try:
webpage = self.session._get(url).json()
except conn_error as error:
logger.fatal(f"Udemy Says: Connection error, {error}")
time.sleep(0.8)
sys.exit(1)
except (ValueError, Exception) as error:
logger.fatal(f"Udemy Says: {error}")
time.sleep(0.8)
sys.exit(1)
else:
results = webpage.get("results", [])
if results:
[courses_lists.extend(courses.get("courses", [])) for courses in results if courses.get("courses", [])]
return courses_lists
def _archived_courses(self, portal_name):
results = []
try:
url = MY_COURSES_URL.format(portal_name=portal_name)
url = f"{url}&is_archived=true"
webpage = self.session._get(url).json()
except conn_error as error:
logger.fatal(f"Udemy Says: Connection error, {error}")
time.sleep(0.8)
sys.exit(1)
except (ValueError, Exception) as error:
logger.fatal(f"Udemy Says: {error}")
time.sleep(0.8)
sys.exit(1)
else:
results = webpage.get("results", [])
return results
def _my_courses(self, portal_name):
results = []
try:
url = MY_COURSES_URL.format(portal_name=portal_name)
webpage = self.session._get(url).json()
except conn_error as error:
logger.fatal(f"Udemy Says: Connection error, {error}")
time.sleep(0.8)
sys.exit(1)
except (ValueError, Exception) as error:
logger.fatal(f"Udemy Says: {error}")
time.sleep(0.8)
sys.exit(1)
else:
results = webpage.get("results", [])
return results
def _subscribed_collection_courses(self, portal_name):
url = COLLECTION_URL.format(portal_name=portal_name)
courses_lists = []
try:
webpage = self.session._get(url).json()
except conn_error as error:
logger.fatal(f"Udemy Says: Connection error, {error}")
time.sleep(0.8)
sys.exit(1)
except (ValueError, Exception) as error:
logger.fatal(f"Udemy Says: {error}")
time.sleep(0.8)
sys.exit(1)
else:
results = webpage.get("results", [])
if results:
[courses_lists.extend(courses.get("courses", [])) for courses in results if courses.get("courses", [])]
return courses_lists
def _archived_courses(self, portal_name):
results = []
try:
url = MY_COURSES_URL.format(portal_name=portal_name)
url = f"{url}&is_archived=true"
webpage = self.session._get(url).json()
except conn_error as error:
logger.fatal(f"Udemy Says: Connection error, {error}")
time.sleep(0.8)
sys.exit(1)
except (ValueError, Exception) as error:
logger.fatal(f"Udemy Says: {error}")
time.sleep(0.8)
sys.exit(1)
else:
results = webpage.get("results", [])
return results
def _extract_subscription_course_info(self, url):
course_html = self.session._get(url).text
soup = BeautifulSoup(course_html, "lxml")
data = soup.find("div", {"class": "ud-component--course-taking--app"})
if not data:
logger.fatal("Unable to extract arguments from course page! Make sure you have a cookies.txt file!")
self.session.terminate()
sys.exit(1)
data_args = data.attrs["data-module-args"]
data_json = json.loads(data_args)
course_id = data_json.get("courseId", None)
portal_name = self.extract_portal_name(url)
return course_id, portal_name
def _extract_course_info(self, url):
portal_name, course_name = self.extract_course_name(url)
course = {}
if not is_subscription_course:
results = self._subscribed_courses(portal_name=portal_name, course_name=course_name)
course = self._extract_course(response=results, course_name=course_name)
if not course:
results = self._my_courses(portal_name=portal_name)
course = self._extract_course(response=results, course_name=course_name)
if not course:
results = self._subscribed_collection_courses(portal_name=portal_name)
course = self._extract_course(response=results, course_name=course_name)
if not course:
results = self._archived_courses(portal_name=portal_name)
course = self._extract_course(response=results, course_name=course_name)
if not course or is_subscription_course:
course_id, portal_name = self._extract_subscription_course_info(url)
course = self._extract_course_info_json(url, course_id, portal_name)
if course:
course.update({"portal_name": portal_name})
return course.get("id"), course
if not course:
logger.fatal("Downloading course information, course id not found .. ")
logger.fatal(
"It seems either you are not enrolled or you have to visit the course atleast once while you are logged in.",
)
logger.info(
"Trying to logout now...",
)
self.session.terminate()
logger.info(
"Logged out successfully.",
)
sys.exit(1)
class Session(object):
def __init__(self):
self._headers = HEADERS
self._session = requests.sessions.Session()
self._session.mount(
"https://",
SSLCiphers(
cipher_list="ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:AES256-SH"
),
)
def _set_auth_headers(self, bearer_token=""):
self._headers["Authorization"] = "Bearer {}".format(bearer_token)
self._headers["X-Udemy-Authorization"] = "Bearer {}".format(bearer_token)
self._headers["Cookie"] = cookies
def _get(self, url):
for i in range(10):
session = self._session.get(url, headers=self._headers)
if session.ok or session.status_code in [502, 503]:
return session
if not session.ok:
logger.error("Failed request " + url)
logger.error(f"{session.status_code} {session.reason}, retrying (attempt {i} )...")
time.sleep(0.8)
def _post(self, url, data, redirect=True):
session = self._session.post(url, data, headers=self._headers, allow_redirects=redirect)
if session.ok:
return session
if not session.ok:
raise Exception(f"{session.status_code} {session.reason}")
def terminate(self):
self._set_auth_headers()
return
# Thanks to a great open source utility youtube-dl ..
class HTMLAttributeParser(compat_HTMLParser): # pylint: disable=W
"""Trivial HTML parser to gather the attributes for a single element"""
def __init__(self):
self.attrs = {}
compat_HTMLParser.__init__(self)
def handle_starttag(self, tag, attrs):
self.attrs = dict(attrs)
def extract_attributes(html_element):
"""Given a string for an HTML element such as
<el
a="foo" B="bar" c="&98;az" d=boz
empty= noval entity="&"
sq='"' dq="'"
>
Decode and return a dictionary of attributes.
{
'a': 'foo', 'b': 'bar', c: 'baz', d: 'boz',
'empty': '', 'noval': None, 'entity': '&',
'sq': '"', 'dq': '\''
}.
NB HTMLParser is stricter in Python 2.6 & 3.2 than in later versions,
but the cases in the unit test will work for all of 2.6, 2.7, 3.2-3.5.
"""
parser = HTMLAttributeParser()
try:
parser.feed(html_element)
parser.close()
except Exception: # pylint: disable=W
pass
return parser.attrs
def hidden_inputs(html):
html = re.sub(r"<!--(?:(?!<!--).)*-->", "", html)
hidden_inputs = {} # pylint: disable=W
for entry in re.findall(r"(?i)(<input[^>]+>)", html):
attrs = extract_attributes(entry)
if not entry:
continue
if attrs.get("type") not in ("hidden", "submit"):
continue
name = attrs.get("name") or attrs.get("id")
value = attrs.get("value")
if name and value is not None:
hidden_inputs[name] = value
return hidden_inputs
def search_regex(pattern, string, name, default=object(), fatal=True, flags=0, group=None):
"""
Perform a regex search on the given string, using a single or a list of
patterns returning the first matching group.
In case of failure return a default value or raise a WARNING or a
RegexNotFoundError, depending on fatal, specifying the field name.
"""
if isinstance(pattern, str):
mobj = re.search(pattern, string, flags)
else:
for p in pattern:
mobj = re.search(p, string, flags)
if mobj:
break
_name = name
if mobj:
if group is None:
# return the first matching group
return next(g for g in mobj.groups() if g is not None)
else:
return mobj.group(group)
elif default is not object():
return default
elif fatal:
logger.fatal("[-] Unable to extract %s" % _name)
exit(0)
else:
logger.fatal("[-] unable to extract %s" % _name)
exit(0)
class UdemyAuth(object):
def __init__(self, username="", password="", cache_session=False):
self.username = username
self.password = password
self._cache = cache_session
self._session = Session()
def authenticate(self, bearer_token=""):
if bearer_token:
self._session._set_auth_headers(bearer_token=bearer_token)
self._session._session.cookies.update({"bearer_token": bearer_token})
return self._session, bearer_token
else:
self._session._set_auth_headers()
return None, None
def durationtoseconds(period):
"""
@author Jayapraveen
"""
# Duration format in PTxDxHxMxS
if period[:2] == "PT":
period = period[2:]
day = int(period.split("D")[0] if "D" in period else 0)
hour = int(period.split("H")[0].split("D")[-1] if "H" in period else 0)
minute = int(period.split("M")[0].split("H")[-1] if "M" in period else 0)
second = period.split("S")[0].split("M")[-1]
# logger.debug("Total time: " + str(day) + " days " + str(hour) + " hours " +
# str(minute) + " minutes and " + str(second) + " seconds")
total_time = float(str((day * 24 * 60 * 60) + (hour * 60 * 60) + (minute * 60) + (int(second.split(".")[0]))) + "." + str(int(second.split(".")[-1])))
return total_time
else:
logger.error("Duration Format Error")
return None
def cleanup(path):
"""
@author Jayapraveen
"""
leftover_files = glob.glob(path + "/*.mp4", recursive=True)
for file_list in leftover_files: