new (and better) version.
This commit is contained in:
Alexander Weidinger
@@ -1,85 +0,0 @@
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#!/usr/bin/python3
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from requests import Session
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from lxml import html
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from re import compile, findall, match
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from os import makedirs
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from os.path import exists, getmtime
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from calendar import timegm
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from time import strptime
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AUTH_NONE = 0
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AUTH_MOODLE = 1
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_regex = compile('https\:\/\/www\.moodle\.tum\.de\/mod\/resource\/view\.php\?id\=\d{6}')
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_is_file = compile('\.(pdf|txt|py|c|jar)')
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def create_filepath(filepath):
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if not exists(filepath):
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makedirs(filepath)
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def download_file(session, url, filepath):
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filename = filepath + url[url.rindex('/'):] #ugly as fuck
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if not exists(filename):
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print('[+] ' + filename)
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req = session.get(url)
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with open(filename, 'wb') as fh:
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for chunk in req.iter_content():
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fh.write(chunk)
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else:
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last_mod_file = getmtime(filename)
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last_mod_www = timegm(strptime(session.head(url).headers['Last-Modified'], '%a, %d %b %Y %H:%M:%S %Z'))
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if last_mod_www > last_mod_file:
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print('[M] ' + filename)
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req = session.get(url)
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with open(filename, 'wb') as fh:
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for chunk in req.iter_content():
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fh.write(chunk)
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def resolve_direct_link(session, url):
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return session.head(url).headers['Location']
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def get_file_links(session, url, base=''):
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links = []
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handle = session.get(url).text
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if url.startswith('https://www.moodle.tum.de/course/'):
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for match in findall(_regex, handle):
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links.append(resolve_direct_link(session, match))
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else:
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hrefs = html.fromstring(handle).xpath('//a/@href')
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for href in hrefs:
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if _is_file.findall(href) != []: # is file link?
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links.append(base + href)
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return links
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def get_moodle_session(user, passwd):
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session = Session()
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session.get('https://www.moodle.tum.de/Shibboleth.sso/Login?providerId=https://tumidp.lrz.de/idp/shibboleth&target=https://www.moodle.tum.de/auth/shibboleth/index.php')
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resp = session.post('https://tumidp.lrz.de/idp/Authn/UserPassword', data={'j_username':user, 'j_password':passwd})
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parsed = html.fromstring(resp.text)
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session.post('https://www.moodle.tum.de/Shibboleth.sso/SAML2/POST', data={'RelayState':parsed.forms[0].fields['RelayState'], 'SAMLResponse':parsed.forms[0].fields['SAMLResponse']})
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return session
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def main(mode, url, files, user='', passwd='', base=''):
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session = None
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if mode == AUTH_MOODLE:
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session = get_moodle_session(user, passwd)
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else:
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session = Session()
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links = get_file_links(session, url, base)
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for link in links:
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for ft in files:
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reg = compile(ft[0])
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match = reg.findall(link)
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if match != []:
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create_filepath(ft[1])
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download_file(session, link, ft[1])
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97
tudown.py
Normal file
97
tudown.py
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@@ -0,0 +1,97 @@
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#!/usr/bin/python3
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from requests import Session, utils
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from lxml import html
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from re import compile, findall, match
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from os import makedirs
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from os.path import exists, getmtime
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from calendar import timegm
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from time import strptime
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def create_filepath(filepath):
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if not exists(filepath):
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makedirs(filepath)
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def download_files(session, files):
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for f in files:
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filename = f[1] + utils.unquote(f[0])[utils.unquote(f[0]).rindex('/'):]
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if not exists(filename):
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response = session.get(f[0])
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if response.status_code == 200:
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create_filepath(f[1])
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with open(filename, 'wb') as f:
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for chunk in response.iter_content(1024):
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f.write(chunk)
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print('[+] ' + filename)
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else:
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response = session.head(f[0])
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if response.status_code == 200:
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last_mod_file = getmtime(filename)
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last_mod_www = timegm(strptime(response.headers['Last-Modified'], '%a, %d %b %Y %H:%M:%S %Z'))
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if last_mod_www > last_mod_file:
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response = session.get(f[0])
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if response.status_code == 200:
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create_filepath(f[1])
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with open(filename, 'wb') as f:
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for chunk in response.iter_content(1024):
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f.write(chunk)
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print('[M] ' + filename)
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def resolve_direct_links(session, hrefs):
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links = []
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for href in hrefs:
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links.append(session.head(href).headers['Location'])
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return links
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def get_file_links(session, url, files):
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links = []
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response = session.get(url)
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if 'www.moodle.tum.de' in url:
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hrefs = findall(compile('https\:\/\/www\.moodle\.tum\.de\/mod\/resource\/view\.php\?id\=\d{6}'), response.text)
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hrefs = resolve_direct_links(session, hrefs)
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else:
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hrefs = html.fromstring(response.text).xpath('//a/@href')
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for f in files:
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reg = compile(f[0])
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for href in hrefs:
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match = reg.findall(href)
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if match:
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if not ('https://' in href or 'http://' in href):
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links.append((url + href, f[1]))
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else:
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links.append((href, f[1]))
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return links
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def establish_moodle_session(user, passwd):
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session = Session()
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session.get('https://www.moodle.tum.de/Shibboleth.sso/Login?providerId=https://tumidp.lrz.de/idp/shibboleth&target=https://www.moodle.tum.de/auth/shibboleth/index.php')
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response = session.post('https://tumidp.lrz.de/idp/Authn/UserPassword', data={'j_username':user, 'j_password':passwd})
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parsed = html.fromstring(response.text)
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session.post('https://www.moodle.tum.de/Shibboleth.sso/SAML2/POST', data={'RelayState':parsed.forms[0].fields['RelayState'], 'SAMLResponse':parsed.forms[0].fields['SAMLResponse']})
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return session
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def main(url, files, user='', passwd=''):
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# create session
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session = None
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if 'www.moodle.tum.de' in url:
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session = establish_moodle_session(user, passwd)
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else:
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session = Session()
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session.auth = (user, passwd)
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session.headers = {
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"Accept-Language": "de-DE,de;"
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}
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# get file links
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links = get_file_links(session, url, files)
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# download files
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download_files(session, links)
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32
update.py.example
Executable file
32
update.py.example
Executable file
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#!/usr/bin/python3
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import tudown
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user = ''
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passwd = ''
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# +--------+
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# | Skript |
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# +--------+
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url = 'http://wwwmayr.informatik.tu-muenchen.de/lehre/2015SS/theo/'
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files = [
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('2015-theo\.pdf', 'Skript'),
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('2015-\d{2}-\d{2}\.pdf', 'Skript'),
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]
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tudown.main(url, files)
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# +-------+
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# | Übung |
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# +-------+
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url = 'http://wwwmayr.informatik.tu-muenchen.de/lehre/2015SS/theo/uebung/'
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files = [
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('ue\d*\.pdf', 'Übungsblätter'),
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('loesungen/lo\d*\.pdf', 'Lösungsblätter'),
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('theo15zue\d*_druck\.pdf', 'Skript/ZÜ'),
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]
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tudown.main(url, files, user=user, passwd=passwd)
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