Download da GiuntiTVP

[stepersy]

Ciao! Innanzitutto grazie mille per lo stupendo lavoro che stai facendo!
Ho visto che è stata aggiunta la possibilità di scaricare da GiuntiTVP mediante One Shot Link. Come si usa?
Ho provato a incollare il link di un mio libro (https://mydbook.giuntitvp.it/app/books/GIAC67_G6760798D/pdfParts?prependCollection=BL35LIV07_MYDBOOK2019) ma continua a rispondere "Unable to view this publicly. Aborting...".
Grazieee :)

[ckhmer1]

Ciao,
io sono riuscito a farlo usando il seguente script, la login non so perchè mi restituisce 401, quindi ho usato i cookie prelevati dal browser.

import requests
import fitz
import os

COOKIES={
		"connect.sid": "XXXXXXXXXXX",
		"elmo_vc": "YYYYYYYYY",
		"PHPSESSID": "ZZZZZ",
		"shbookInitialized": "true"
}

BOOK_ID='GT2023_G3452521A'

LAST_PAGE_NUMBER=384

BOOK_URL="https://mydbook.giuntitvp.it/books/" + BOOK_ID + "/pdf/pages/%s?type="

USERNAME='[email protected]'
PASSWORD='password'

TEMP_DIR=BOOK_ID

def getnamevalue(input):
	dummy=[ t for t in input.split() if t.startswith('name=') or t.startswith('value=') ]
	data={}
	for t in dummy:
		d = t.split("=")
		data[d[0]] = d[1].split('"')[1]
	if data.get("name", "") == "":
		return
	return data.get("name", ""), data.get("value", "")


def getlogindata(username, password):
	s = 'https://mydbook.giuntitvp.it/authentication/cas?iframe=false'
	r = 'https://mydbook.giuntitvp.it/app/home'
	data={ "username": username, "password": password, "submit": "Invia", "service" : [s, s], "return" : [r, r]}
	r = requests.get("https://centralauthentication.giunti.it/cas/login?service=https://mydbook.giuntitvp.it/authentication/cas?iframe=false&return=https://mydbook.giuntitvp.it/app/home")
	for cookie in iter(r.cookies):
		print(cookie.name, cookie.value)
	inputs = [ t for t in r.text.split("\n") if '<input' in t ]
	inputs = [ t1 for t in inputs for t1 in t.split("<") if t1.startswith('input') ]
	namevalues = [ getnamevalue(t) for t in inputs ]
	for namevalue in namevalues:
		if namevalue is not None:
			n = namevalue[0]
			v = namevalue[1]
			if n in data:
				v1 = data[n]
				if isinstance(v1, str):
					data[n] = [v1, v]
				else:
					data[n].append(v)
			else:
				data[n] = v
	print(data)
	r = requests.post("https://centralauthentication.giunti.it/cas/login?service=https://mydbook.giuntitvp.it/authentication/cas?iframe=false&return=https://mydbook.giuntitvp.it/app/home", data=data)
	print(r.status_code)
	print(r.encoding)
	print(r.text)
	if r.status_code != 200:
		return
	else:
		r.encoding = "utf-8-sig"
		return r.json()


def login(username, password):
	logindata = getlogindata(username, password)
	print(logindata)
	if "error" in logindata or not logindata:
		if logindata.get("error") == "1":
			print("Incorrect credentials!")
		else:
			print("Login failed!")
	else:
		userid = str(logindata["userId"])
		if userid == "0":
			print("Unauthorized!")
		else:
			return logindata["accessToken"] + "/" + userid

def downloadfile(url):
	r = requests.get(url, stream=True, headers={"Referer": "https://mydbook.giuntitvp.it"}, cookies=COOKIES)
	length = int(r.headers.get("content-length", 1))
	if r.status_code != 200:
		return
	file = b""
	for data in r.iter_content(chunk_size=102400):
		file += data
	return file

def get_page(p):
	url = BOOK_URL % str(p)
	dta = downloadfile(url)
	if dta:	
		f = open(os.path.join(TEMP_DIR, "page_%d.jpg"%p), "wb")
		f.write(dta)
		f.close()


def download_book():
	for p in range(1, LAST_PAGE_NUMBER+1):
		print(p)
		get_page(p)

def create_pdf():
	doc = fitz.open()  # PDF with the pictures

	for p in range(1, LAST_PAGE_NUMBER+1):
		f = os.path.join(TEMP_DIR, "page_%d.jpg"%p)
		img = fitz.open(f)  # open pic as document
		rect = img[0].rect  # pic dimension
		pdfbytes = img.convert_to_pdf()  # make a PDF stream
		img.close()  # no longer needed
		imgPDF = fitz.open("pdf", pdfbytes)  # open stream as PDF
		page = doc.new_page(width = rect.width,  # new page with ...
						height = rect.height)  # pic dimension
		page.show_pdf_page(rect, imgPDF, 0)  # image fills the page
		print(p)

	doc.save("%s.pdf" % BOOK_ID)


if __name__ == '__main__':
	os.makedirs(TEMP_DIR, exist_ok=True)
	#login(USERNAME, PASSWORD)
	download_book()
	create_pdf()