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MoodleScraper.py
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MoodleScraper.py
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from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.chrome.service import Service
import urllib.request
import os
from pathlib import Path
import sys
import time
import argparse
from getpass import getpass
import platform
import json
import socket
from inputimeout import inputimeout, TimeoutOccurred
import shutil
import pathvalidate
from contextlib import suppress
import psutil
def hello():
print('''
███╗ ███╗ ██████╗ ██████╗ ██████╗ ██╗ ███████╗ ███████╗ ██████╗██████╗ █████╗ ██████╗ ███████╗██████╗
████╗ ████║██╔═══██╗██╔═══██╗██╔══██╗██║ ██╔════╝ ██╔════╝██╔════╝██╔══██╗██╔══██╗██╔══██╗██╔════╝██╔══██╗
██╔████╔██║██║ ██║██║ ██║██║ ██║██║ █████╗ ███████╗██║ ██████╔╝███████║██████╔╝█████╗ ██████╔╝
██║╚██╔╝██║██║ ██║██║ ██║██║ ██║██║ ██╔══╝ ╚════██║██║ ██╔══██╗██╔══██║██╔═══╝ ██╔══╝ ██╔══██╗
██║ ╚═╝ ██║╚██████╔╝╚██████╔╝██████╔╝███████╗███████╗ ███████║╚██████╗██║ ██║██║ ██║██║ ███████╗██║ ██║
╚═╝ ╚═╝ ╚═════╝ ╚═════╝ ╚═════╝ ╚══════╝╚══════╝ ╚══════╝ ╚═════╝╚═╝ ╚═╝╚═╝ ╚═╝╚═╝ ╚══════╝╚═╝ ╚═╝
''')
def validateInput():
global JSONFILE
global COURSEPAGE
if(fromJson==None):
if(COURSEPAGE==""): #if not '-j' swap first (if not void) arg with second (jsonFile with Coursepage)
if(JSONFILE!=""):
COURSEPAGE=JSONFILE
else: #if first argument is void
print("ERR: Invalid Arguments! You must specify at least a Course Page or a JSON file (along with [-j] option)")
print(parser.format_help())
sys.exit()
elif(fromJson[0]==1):
if(JSONFILE==""): #if 'j' swap second (if not void) arg with first (Coursepage with jsonFile)
if(COURSEPAGE!=""):
JSONFILE=COURSEPAGE
else: #if first argument is void
print("ERR: Invalid Arguments! You must specify at least a Course Page or a JSON file (along with [-j] option)")
print(parser.format_help())
sys.exit()
parser = argparse.ArgumentParser(description="Download all Kaltura videos from a UniTN Moodle page.")
parser.add_argument('-v', '--verbose' ,help="verbose", required=False, action='append_const', const=1)
parser.add_argument('-j', '--json' ,help="download from existing json", required=False, action='append_const', const=1)
parser.add_argument("jsonFile",help="JSON File Name without extension (must be in 'json' folder)",type=str, default="",nargs='?')
parser.add_argument("Page_URL",help="Moodle Page link",type=str, nargs='?', default="")
args=parser.parse_args()
verbose=args.verbose
fromJson=args.json
JSONFILE=args.jsonFile
COURSEPAGE=args.Page_URL
validateInput()
hello()
USERNAME = ""
PASSWORD = ""
LOGINPAGE="https://didatticaonline.unitn.it/dol/loginUniTN.php"
opsys=platform.system()
def exitRoutine():
print("Closing all browser instances, please wait...")
browser.stop_client()
browser.quit()
#assert that all processes are terminated (on windows it's the only way to properly close chromedriver from an exception)
#TODO:check for other OS if it's closing
if(opsys=="Windows"):
for process in psutil.process_iter():
if process.name() == 'chrome.exe' and '--test-type=webdriver' in process.cmdline():
with suppress(psutil.NoSuchProcess):
p = psutil.Process(process.pid)
p.terminate()
print("See you soon!")
sys.exit()
def isConnected():
try:
# connect to the host -- tells us if the host is actually reachable
sock = socket.create_connection(("www.google.com", 80))
if sock is not None:
sock.close
return True
except OSError:
pass
return False
def checkConnection():
global browser
if(not isConnected()):
print("Connection lost, please wait...")
i=0
for i in range(0,5):
print("Reconnecting, attempt #" + str(i+1) +"...")
time.sleep(2)
if(isConnected()):
print("Reconnected!")
break
if(i==4):
print("No connection, retry later!")
exitRoutine()
def selWait(by,value,time=3):
wait=WebDriverWait(browser,time)
try:
wait.until(EC.presence_of_element_located((by,value)))
except Exception as e:
print(e)
def waitAndFind(by,value):
selWait(by,value)
return browser.find_element(by, value=value)
def waitAndFindMultiple(by,value):
selWait(by,value)
return browser.find_elements(by, value=value)
def validList(list,maxn): #input is valid if is "all" or numbers in range ( [1:lastVideoIndex] ) separed by a comma
valid=1
for number in list:
if(number=="all" and len(list)>0): #if input is 'all' skip all cicle and return
return valid
if(not number.isnumeric()):
return 0
if(int(number)<1):
return 0
if(int(number)>maxn):
return 0
return valid
def write_json(filename, jsonObj):
filename=pathvalidate.sanitize_filename(filename)
filename=filename.replace(" ", "_")
path=os.path.join("json", filename+'.json')
try:
with open(path, 'w') as outfile:
json.dump(jsonObj, outfile, indent=2)
except Exception as e:
print(e)
def create_db():
json_filename = coursename
write_json(json_filename, video_dict)
def json2dict(filename):
path=os.path.join("json", str(filename))
with open(path, "r") as read_file:
try:
dict = json.load(read_file)
if(len(dict)<2):
raise Exception("json is empty!")
except Exception as e:
print("json not valid!")
print(e)
exitRoutine()
return dict
def show_dict(dict):
print ("{:<10} {:<10}".format('ID', 'NAME'))
j = 1 #list start from 1 and not from 0
for i in dict.items():
print ("{:<10} {:<10}".format(j, i[0]))
j+=1
def download_multiple(dict):
show_dict(dict)
print("List which videos do you want to download using commas or type 'all' to select all \neg: 1,2,3")
in_list=""
maxtime=25
firstIt=1
while(not validList(list(in_list.split(',')),len(dict))):
if(firstIt!=1):
print("Input invalid!")
try:
in_list=inputimeout(prompt="('all' in " + str(int(maxtime)) + "s): ", timeout=maxtime)
firstIt=0
except TimeoutOccurred:
sys.stdout.flush()
in_list ="all"
print("all")
sys.stdout.flush()
if(in_list != 'all'):
in_list = list(in_list.split(','))
for video in in_list:
index=int(video)-1 #list start from 1 and not from 0
try:
print(f"Downloading: {list(dict.keys())[index]}")
download_single_video(list(dict.keys())[index])
print("")
except Exception as e:
print(e)
else:
download_all(dict)
def reporthook(count, block_size, total_size):
global start_time
if count == 0:
start_time = time.time()
return
duration = time.time() - start_time
if(duration==0.0):
duration = 0.1
progress_size = int(count * block_size)
speed = int(progress_size / (1024 * duration))
percent = min(int(count * block_size * 100 / total_size),100)
sys.stdout.write("\r...%d%%, %d MB, %d KB/s, %d seconds passed" %
(percent, progress_size / (1024 * 1024), speed, duration))
sys.stdout.flush()
def download_single_video(obj):
p=os.path.join("Videos/",coursename+"_videos")
path=Path(p)
path.mkdir(parents=True, exist_ok=True)
global video_dict
global start_time
#download video from source page
filename=pathvalidate.sanitize_filename(obj)
filename=filename.replace(" ","_")
filename=str(obj)+'-'+filename
print(filename)
path=os.path.join(p, filename+".mp4")
start_time=time.time()
urllib.request.urlretrieve(video_dict[obj], path, reporthook)
#download all videos
def download_all(dict):
i = 0
for j in dict:
download_single_video(j)
print("\n"+"Video "+ str(i+1)+" of " + str(len(dict)) + " downloaded please wait...")
i=i+1
def download_wait():
directory=os.path.join(os.getcwd(),"Files","temp", "")
seconds = 0
dl_wait = True
while dl_wait:
fileProgress(seconds,"Downloading files, please wait")
time.sleep(1)
dl_wait = False
files = os.listdir(directory)
for fname in files:
if fname.endswith('.crdownload'):
dl_wait = True
seconds += 1
return seconds
def moveFiles():
global coursename
source_folder = os.path.join(os.getcwd(),"Files","temp", "")
destination_folder = os.path.join(os.getcwd(),"Files",coursename+"_files", "")
print("Moving files, plese wait...")
# fetch all files
for file_name in os.listdir(source_folder):
# construct full file path
source = source_folder + file_name
destination = destination_folder + file_name
shutil.move(source, destination)
shutil.rmtree(os.path.join(os.getcwd(),"Files","temp"))
def fileProgress(i,stringa):
dots=i%4
stringa
while(dots>0):
stringa=stringa + "."
dots=dots-1
print("\r {}".format(stringa+" "), end="")
def download_files():
global coursename
global video_dict
global start_time
p2=os.path.join("Files","temp")
path2=Path(p2)
path2.mkdir(parents=True, exist_ok=True)
#get course page
browser.get(COURSEPAGE)
coursename=waitAndFind(By.TAG_NAME,"h1").text
coursename=pathvalidate.sanitize_filename(coursename)
coursename=coursename.replace(" ", "_")
p=os.path.join("Files",coursename +"_files")
path=Path(p)
path.mkdir(parents=True, exist_ok=True)
print("Searching for files...")
topics=waitAndFindMultiple(By.CLASS_NAME,"aalink")
index=0
files={}
folders={}
for topic in topics:
if ("File" in topic.text or "Cartella" in topic.text):
filename_list=topic.text.split("\n",1)
filename=filename_list[0]
filename=pathvalidate.sanitize_filename(filename)
filename=filename.replace(" ", "_")
filename=str(index)+'-'+filename
print(filename)
filetype=filename_list[1]
if(filetype=="File"):
files[topic.get_attribute("href")]=filename
elif(filetype=="Cartella"):
folders[topic.get_attribute("href")]=filename
index+=1
print()
if((len(files)+len(folders))>0):
print("Found " + str((len(files)+len(folders)))+ " files...")
print("The script will download them all, it may take a while")
else:
print("No files found!")
fileURLS=[]
i=0
for file in files:
#download files
path2=os.path.join(p2, files[file])
#execute javascript code that obtain the redirection url
#jsCode= "var xhr = new XMLHttpRequest();" + "xhr.open('GET', arguments[0], false);" + "xhr.send(null);" + "return xhr.responseURL;"
#fileURL= browser.execute_script(jsCode,files[file])
#simpler solution
fileURL=file+"&redirect=1"
#remove forcedownload=1 from url in order to get file resource url
if("forcedownload=1" in fileURL):
fileURL=fileURL.replace("?forcedownload=1","")
fileURLS.append(fileURL)
fileProgress(i,"Creating file list")
i=i+1
for folder in folders:
#download folders
path2=os.path.join(p2, folders[folder])
url=folder
browser.get(url)
waitAndFind(By.XPATH, value="//button[@type='submit' and @class='btn btn-secondary']").click()
download_wait()
i=i+1
for file in fileURLS:
browser.get(file)
if("mp4" in browser.current_url):
browser.execute_script("window.location = \'"+browser.current_url+"?forcedownload=1"+"\';" "window.stop;") #necessary to navigate to page with js script in order to stop loading the page, otherwise chromedriver get stuck in that page
download_wait()
i=i+1
time.sleep(2)
print("")
moveFiles()
print("Files download complete!")
def login():
global USERNAME
global PASSWORD
USERNAME=input("Enter username: ")
PASSWORD=getpass()
print("Logging in...")
#get login page
browser.get(LOGINPAGE)
LOGINP=waitAndFind(By.ID,"btn-login-unitn-en") #TODO: make it independent of the system language
LOGINP.click()
#login page
username = waitAndFind(By.NAME,"j_username")
username.send_keys(USERNAME)
password = waitAndFind(By.NAME,"j_password")
password.send_keys(PASSWORD)
accedi = waitAndFind(By.ID,"btnAccedi")
pagina=browser.current_url
accedi.click()
if(pagina[0:-4]==browser.current_url[0:-4]):
print("ERROR: Wrong username or password!")
login()
def get_videos():
global coursename
global video_dict
#get course page
browser.get(COURSEPAGE)
coursename=waitAndFind(By.TAG_NAME,"h1").text
coursename=pathvalidate.sanitize_filename(coursename)
coursename=coursename.replace(" ","_")
topics = waitAndFindMultiple(By.CLASS_NAME,"aalink")
print("Searching for Kaltura videos...")
videos = {}
for topic in topics:
name=''
if "Kaltura Video Resource" in topic.text:
name=topic.text.replace("Kaltura Video Resource","") #remove useless chars
name=name[0:-1] #remove \n
videos[name]=topic.get_attribute("href")
elif "Kaltura Video Presentation" in topic.text:
name2=topic.text.replace("Kaltura Video Presentation","") #remove useless chars
name2=name2[0:-1] #remove \n
videos[name2]=topic.get_attribute("href")
if(name!=''):
print(name)
print()
if(len(videos)>0):
print("Found " + str(len(videos))+ " videos...")
print("The script will browse through every video to create a download link, it may take a while")
print("Creating download list...")
else:
print("No video found!")
exitRoutine()
video_dict = {}
i=1
for key in videos :
#go to video page
browser.get(videos[key])
#get video link
print(f"Getting video link #{i} of {len(videos)}")
try:
selWait(By.ID, "contentframe",2)
browser.switch_to.frame("contentframe")
selWait(By.ID, "kplayer_ifp",2)
browser.switch_to.frame("kplayer_ifp")
except Exception:
print("W: One ore more frames are hidden, please wait...")
try:
linkElem = waitAndFind(By.ID,"pid_kplayer")
link=linkElem.get_attribute("src")
except Exception:
print("W: pid_kplayer is hidden, please wait...")
waitAndFind(By.TAG_NAME,"button").click()
name=waitAndFind(By.XPATH, "//*[contains(@id, 'kaltura_player')]")
name=name.get_attribute("id")
browser.switch_to.frame(name+"_ifp")
linkElem=waitAndFind(By.ID,"pid_"+name)
link=linkElem.get_attribute("src")
video_dict[key] = link
i+=1
def main():
global coursename
global video_dict
global browser
global fromJson
try: #first try-catch in case of non instanced browser
#set driver
options = webdriver.ChromeOptions()
options.add_experimental_option('excludeSwitches', ['enable-logging'])
options.add_experimental_option('prefs', {
"download.default_directory": os.path.join(os.getcwd(),"Files","temp"), #Change default directory for downloads
"download.prompt_for_download": False, #To auto download the file
"download.directory_upgrade": True,
"plugins.always_open_pdf_externally": True #It will not show PDF directly in chrome
})
options.add_argument("--mute-audio")
options.add_argument("--window-size=500,500")
if(verbose==None):
options.headless = True
if(opsys=="Windows"):
ser=Service(os.path.join("bin","chromedriver_WIN32.exe"))
browser = webdriver.Chrome(options=options, service=ser)
elif(opsys=="Linux"):
ser=Service(os.path.join("bin","chromedriver_LINUX64"))
browser = webdriver.Chrome(options=options,service=ser)
elif(opsys=="Darwin"):
if(platform.architecture=="arm"):
ser=Service(os.path.join("bin","chromedriver_MAC_M1"))
browser = webdriver.Chrome(options=options,service=ser)
else:
ser=Service(os.path.join("bin","chromedriver_MAC64"))
browser = webdriver.Chrome(options=options,service=ser)
except KeyboardInterrupt:
print("Moodle Scraper terminated by user!")
print("See you soon!")
sys.exit()
except Exception as e :
print(e)
sys.exit()
if(verbose==None):
print("Starting Chrome silently...")
else:
print("Starting Chrome...")
try: #second try-catch in case of instanced browser
checkConnection()
if(fromJson!=None):
jsonPath=os.path.join("json", JSONFILE+".json")
if(os.path.isfile(jsonPath)):
coursename=JSONFILE
#login()
video_dict=json2dict(JSONFILE+".json")
checkConnection()
download_multiple(video_dict)
else:
print("ERR: JSON file doesn't exist!")
exitRoutine()
else:
checkConnection()
login()
choice = 'x'
maxtime=10
while(choice != 'Y' and choice != 'N' and choice != 'y' and choice != 'n'):
message="Do you want to download files? [Y/N]:"
print(message)
try:
choice = inputimeout(prompt="('Y' in " + str(int(maxtime)) + "s): ", timeout=maxtime)
except TimeoutOccurred:
sys.stdout.flush()
choice ='Y'
print("Y")
print("Ok!")
if choice == 'Y' or choice == 'y':
download_files()
global video
video=False
choice = 'x'
maxtime=10
while(choice != 'Y' and choice != 'N' and choice != 'y' and choice != 'n'):
message="Do you want to download Kaltura videos? [Y/N]:"
print(message)
try:
choice = inputimeout(prompt="('Y' in " + str(int(maxtime)) + "s): ", timeout=maxtime)
except TimeoutOccurred:
sys.stdout.flush()
choice ='Y'
print("Y")
print("Ok!")
if choice == 'Y' or choice == 'y':
get_videos()
video=True
if(video==True):
choice = 'x'
maxtime=10
while(choice != 'Y' and choice != 'N' and choice != 'y' and choice != 'n'):
message="Do you want to create a json file to store the video links? [Y/N]:"
print(message)
try:
choice = inputimeout(prompt="('Y' in " + str(int(maxtime)) + "s): ", timeout=maxtime)
except TimeoutOccurred:
sys.stdout.flush()
choice ='Y'
print("Y")
if choice == 'Y' or choice == 'y':
p=os.path.join("json")
path=Path(p)
path.mkdir(parents=True, exist_ok=True)
create_db()
download_multiple(video_dict)
#create_db()
#download_all(video_dict)
print("Download complete, thanks for flying with us!")
except KeyboardInterrupt:
print("")
print("Moodle Scraper terminated by user!")
exitRoutine()
except Exception as e:
print(e)
browser.stop_client()
browser.quit()
sys.exit()
browser.quit()
sys.exit()
if __name__ == "__main__":
main()