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safaribooks.py
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safaribooks.py
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#!/usr/bin/env python3
# coding: utf-8
import os
import sys
import json
import shutil
import logging
import argparse
import requests
import traceback
from lxml import html
from html import escape
from random import random
from multiprocessing import Process, Queue, Value
from urllib.parse import urljoin, urlsplit, urlparse
PATH = os.path.dirname(os.path.realpath(__file__))
COOKIES_FILE = os.path.join(PATH, "cookies.json")
class Display:
BASE_FORMAT = logging.Formatter(
fmt="[%(asctime)s] %(message)s",
datefmt="%d/%b/%Y %H:%M:%S"
)
SH_DEFAULT = "\033[0m" if "win" not in sys.platform else "" # TODO: colors for Windows
SH_YELLOW = "\033[33m" if "win" not in sys.platform else ""
SH_BG_RED = "\033[41m" if "win" not in sys.platform else ""
SH_BG_YELLOW = "\033[43m" if "win" not in sys.platform else ""
def __init__(self, log_file):
self.log_file = os.path.join(PATH, log_file)
self.logger = logging.getLogger("SafariBooks")
self.logger.setLevel(logging.INFO)
logs_handler = logging.FileHandler(filename=self.log_file)
logs_handler.setFormatter(self.BASE_FORMAT)
logs_handler.setLevel(logging.INFO)
self.logger.addHandler(logs_handler)
self.columns, _ = shutil.get_terminal_size()
self.logger.info("** Welcome to SafariBooks! **")
self.book_ad_info = False
self.css_ad_info = Value("i", 0)
self.images_ad_info = Value("i", 0)
self.last_request = (None,)
self.in_error = False
self.state_status = Value("i", 0)
sys.excepthook = self.unhandled_exception
def unregister(self):
self.logger.handlers[0].close()
sys.excepthook = sys.__excepthook__
def log(self, message):
self.logger.info(str(message))
def out(self, put):
sys.stdout.write("\r" + " " * self.columns + "\r" + put + "\n")
def info(self, message, state=False):
self.log(message)
output = (self.SH_YELLOW + "[*]" + self.SH_DEFAULT if not state else
self.SH_BG_YELLOW + "[-]" + self.SH_DEFAULT) + " %s" % message
self.out(output)
def error(self, error):
if not self.in_error:
self.in_error = True
self.log(error)
output = self.SH_BG_RED + "[#]" + self.SH_DEFAULT + " %s" % error
self.out(output)
def exit(self, error):
self.error(str(error))
output = (self.SH_YELLOW + "[+]" + self.SH_DEFAULT +
" Please delete all the `<BOOK NAME>/OEBPS/*.xhtml`"
" files and restart the program.")
self.out(output)
output = self.SH_BG_RED + "[!]" + self.SH_DEFAULT + " Aborting..."
self.out(output)
self.save_last_request()
sys.exit(128)
def unhandled_exception(self, _, o, tb):
self.log("".join(traceback.format_tb(tb)))
self.exit("Unhandled Exception: %s (type: %s)" % (o, o.__class__.__name__))
def save_last_request(self):
if any(self.last_request):
self.log("Last request done:\n\tURL: {0}\n\tDATA: {1}\n\tOTHERS: {2}\n\n\t{3}\n{4}\n\n{5}\n"
.format(*self.last_request))
def intro(self):
output = self.SH_YELLOW + """
____ ___ _
/ __/__ _/ _/__ _____(_)
_\ \/ _ `/ _/ _ `/ __/ /
/___/\_,_/_/ \_,_/_/ /_/
/ _ )___ ___ / /__ ___
/ _ / _ \/ _ \/ '_/(_-<
/____/\___/\___/_/\_\/___/
""" + self.SH_DEFAULT
output += "\n" + "~" * (self.columns // 2)
self.out(output)
def parse_description(self, desc):
try:
return html.fromstring(desc).text_content()
except (html.etree.ParseError, html.etree.ParserError) as e:
self.log("Error parsing the description: %s" % e)
return "n/d"
def book_info(self, info):
description = self.parse_description(info["description"]).replace("\n", " ")
for t in [
("Title", info["title"]), ("Authors", ", ".join(aut["name"] for aut in info["authors"])),
("Identifier", info["identifier"]), ("ISBN", info["isbn"]),
("Publishers", ", ".join(pub["name"] for pub in info["publishers"])),
("Rights", info["rights"]),
("Description", description[:500] + "..." if len(description) >= 500 else description),
("Release Date", info["issued"]),
("URL", info["web_url"])
]:
self.info("{0}{1}{2}: {3}".format(self.SH_YELLOW, t[0], self.SH_DEFAULT, t[1]), True)
def state(self, origin, done):
progress = int(done * 100 / origin)
bar = int(progress * (self.columns - 11) / 100)
if self.state_status.value < progress:
self.state_status.value = progress
sys.stdout.write(
"\r " + self.SH_BG_YELLOW + "[" + ("#" * bar).ljust(self.columns - 11, "-") + "]" +
self.SH_DEFAULT + ("%4s" % progress) + "%" + ("\n" if progress == 100 else "")
)
def done(self, epub_file):
self.info("Done: %s\n\n"
" If you like it, please * this project on GitHub to make it known:\n"
" https://github.com/lorenzodifuccia/safaribooks\n"
" e don't forget to renew your Safari Books Online subscription:\n"
" https://www.safaribooksonline.com/signup/\n\n" % epub_file +
self.SH_BG_RED + "[!]" + self.SH_DEFAULT + " Bye!!")
@staticmethod
def api_error(response):
message = "API: "
if "detail" in response and "Not found" in response["detail"]:
message += "book's not present in Safari Books Online.\n" \
" The book identifier is the digits that you can find in the URL:\n" \
" `https://www.safaribooksonline.com/library/view/book-name/XXXXXXXXXXXXX/`"
else:
os.remove(COOKIES_FILE)
message += "Out-of-Session%s.\n" % (" (%s)" % response["detail"]) if "detail" in response else "" +\
Display.SH_YELLOW + "[+]" + Display.SH_DEFAULT + \
" Use the `--cred` option in order to perform the auth login to Safari Books Online."
return message
class WinQueue(list): # TODO: error while use Process in Windows: can't pickle _thread.RLock objects
def put(self, el):
self.append(el)
def qsize(self):
return self.__len__()
class SafariBooks:
HEADERS = {
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8",
"accept-encoding": "gzip, deflate, br",
"accept-language": "it-IT,it;q=0.9,en-US;q=0.8,en;q=0.7",
"cache-control": "no-cache",
"cookie": "",
"pragma": "no-cache",
"referer": "https://www.safaribooksonline.com/home/",
"upgrade-insecure-requests": "1",
"user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) "
"Chrome/62.0.3202.94 Safari/537.36"
}
BASE_URL = "https://www.safaribooksonline.com"
LOGIN_URL = BASE_URL + "/accounts/login/"
API_TEMPLATE = BASE_URL + "/api/v1/book/{0}/"
BASE_01_HTML = "<!DOCTYPE html>\n" \
"<html lang=\"en\" xml:lang=\"en\" xmlns=\"http://www.w3.org/1999/xhtml\"" \
" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"" \
" xsi:schemaLocation=\"http://www.w3.org/2002/06/xhtml2/" \
" http://www.w3.org/MarkUp/SCHEMA/xhtml2.xsd\"" \
" xmlns:epub=\"http://www.idpf.org/2007/ops\">\n" \
"<head>\n" \
"{0}\n" \
"<style type=\"text/css\">" \
"body{{background-color:#fbfbfb!important;margin:1em;}}" \
"#sbo-rt-content *{{text-indent:0pt!important;}}#sbo-rt-content .bq{{margin-right:1em!important;}}"
KINDLE_HTML = "#sbo-rt-content *{{word-wrap:break-word!important;" \
"word-break:break-word!important;}}#sbo-rt-content table,#sbo-rt-content pre" \
"{{overflow-x:unset!important;overflow:unset!important;" \
"overflow-y:unset!important;white-space:pre-wrap!important;}}"
BASE_02_HTML = "</style>" \
"</head>\n" \
"<body>{1}</body>\n</html>"
CONTAINER_XML = "<?xml version=\"1.0\"?>" \
"<container version=\"1.0\" xmlns=\"urn:oasis:names:tc:opendocument:xmlns:container\">" \
"<rootfiles>" \
"<rootfile full-path=\"OEBPS/content.opf\" media-type=\"application/oebps-package+xml\" />" \
"</rootfiles>" \
"</container>"
# Format: ID, Title, Authors, Description, Subjects, Publisher, Rights, Date, CoverId, MANIFEST, SPINE, CoverUrl
CONTENT_OPF = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" \
"<package xmlns=\"http://www.idpf.org/2007/opf\" unique-identifier=\"bookid\" version=\"2.0\" >\n" \
"<metadata xmlns:dc=\"http://purl.org/dc/elements/1.1/\" " \
" xmlns:opf=\"http://www.idpf.org/2007/opf\">\n"\
"<dc:title>{1}</dc:title>\n" \
"{2}\n" \
"<dc:description>{3}</dc:description>\n" \
"{4}" \
"<dc:publisher>{5}</dc:publisher>\n" \
"<dc:rights>{6}</dc:rights>\n" \
"<dc:language>en-US</dc:language>\n" \
"<dc:date>{7}</dc:date>\n" \
"<dc:identifier id=\"bookid\">{0}</dc:identifier>\n" \
"<meta name=\"cover\" content=\"{8}\"/>\n" \
"</metadata>\n" \
"<manifest>\n" \
"<item id=\"ncx\" href=\"toc.ncx\" media-type=\"application/x-dtbncx+xml\" />\n" \
"{9}\n" \
"</manifest>\n" \
"<spine toc=\"ncx\">\n{10}</spine>\n" \
"<guide><reference href=\"{11}\" title=\"Cover\" type=\"cover\" /></guide>\n" \
"</package>"
# Format: ID, Depth, Title, Author, NAVMAP
TOC_NCX = "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?>" \
"<!DOCTYPE ncx PUBLIC \"-//NISO//DTD ncx 2005-1//EN\"" \
" \"http://www.daisy.org/z3986/2005/ncx-2005-1.dtd\">" \
"<ncx xmlns=\"http://www.daisy.org/z3986/2005/ncx/\" version=\"2005-1\">" \
"<head>" \
"<meta content=\"ID:ISBN:{0}\" name=\"dtb:uid\"/>" \
"<meta content=\"{1}\" name=\"dtb:depth\"/>" \
"<meta content=\"0\" name=\"dtb:totalPageCount\"/>" \
"<meta content=\"0\" name=\"dtb:maxPageNumber\"/>" \
"</head>" \
"<docTitle><text>{2}</text></docTitle>" \
"<docAuthor><text>{3}</text></docAuthor>" \
"<navMap>{4}</navMap>" \
"</ncx>"
def __init__(self, args):
self.args = args
self.display = Display("info_%s.log" % escape(args.bookid))
self.display.intro()
self.cookies = {}
if not args.cred:
if not os.path.isfile(COOKIES_FILE):
self.display.exit("Login: unable to find cookies file.\n"
" Please use the --cred option to perform the login.")
self.cookies = json.load(open(COOKIES_FILE))
else:
self.display.info("Logging into Safari Books Online...", state=True)
self.do_login(*[c.replace("'", "").replace('"', "") for c in args.cred])
if not args.no_cookies:
json.dump(self.cookies, open(COOKIES_FILE, "w"))
self.book_id = args.bookid
self.api_url = self.API_TEMPLATE.format(self.book_id)
self.display.info("Retrieving book info...")
self.book_info = self.get_book_info()
self.display.book_info(self.book_info)
self.display.info("Retrieving book chapters...")
self.book_chapters = self.get_book_chapters()
self.chapters_queue = self.book_chapters[:]
if len(self.book_chapters) > sys.getrecursionlimit():
sys.setrecursionlimit(len(self.book_chapters))
self.book_title = self.book_info["title"]
self.base_url = self.book_info["web_url"]
self.clean_book_title = "".join(self.escape_dirname(self.book_title).split(",")[:2]) \
+ " ({0})".format(self.book_id)
books_dir = os.path.join(PATH, "Books")
if not os.path.isdir(books_dir):
os.mkdir(books_dir)
self.BOOK_PATH = os.path.join(books_dir, self.clean_book_title)
self.css_path = ""
self.images_path = ""
self.create_dirs()
self.display.info("Output directory:\n %s" % self.BOOK_PATH)
self.chapter_title = ""
self.filename = ""
self.css = []
self.images = []
self.display.info("Downloading book contents... (%s chapters)" % len(self.book_chapters), state=True)
self.BASE_HTML = self.BASE_01_HTML + (self.KINDLE_HTML if not args.no_kindle else "") + self.BASE_02_HTML
self.cover = False
self.get()
if not self.cover:
self.cover = self.get_default_cover()
cover_html = self.parse_html(
html.fromstring("<div id=\"sbo-rt-content\"><img src=\"Images/{0}\"></div>".format(self.cover)), True
)
self.book_chapters = [{
"filename": "default_cover.xhtml",
"title": "Cover"
}] + self.book_chapters
self.filename = self.book_chapters[0]["filename"]
self.save_page_html(cover_html)
self.css_done_queue = Queue(0) if "win" not in sys.platform else WinQueue()
self.display.info("Downloading book CSSs... (%s files)" % len(self.css), state=True)
self.collect_css()
self.images_done_queue = Queue(0) if "win" not in sys.platform else WinQueue()
self.display.info("Downloading book images... (%s files)" % len(self.images), state=True)
self.collect_images()
self.display.info("Creating EPUB file...", state=True)
self.create_epub()
if not args.no_cookies:
json.dump(self.cookies, open(COOKIES_FILE, "w"))
self.display.done(os.path.join(self.BOOK_PATH, self.book_id + ".epub"))
self.display.unregister()
if not self.display.in_error and not args.log:
os.remove(self.display.log_file)
sys.exit(0)
def return_cookies(self):
return " ".join(["{0}={1};".format(k, v) for k, v in self.cookies.items()])
def return_headers(self, url):
if "safaribooksonline" in urlsplit(url).netloc:
self.HEADERS["cookie"] = self.return_cookies()
else:
self.HEADERS["cookie"] = ""
return self.HEADERS
def update_cookies(self, jar):
for cookie in jar:
self.cookies.update({
cookie.name: cookie.value
})
def requests_provider(self, url, post=False, data=None, update_cookies=True, **kwargs):
try:
response = getattr(requests, "post" if post else "get")(
url,
headers=self.return_headers(url),
data=data,
**kwargs
)
self.display.last_request = (
url, data, kwargs, response.status_code, "\n".join(
["\t{}: {}".format(*h) for h in response.headers.items()]
), response.text
)
except (requests.ConnectionError, requests.ConnectTimeout, requests.RequestException) as request_exception:
self.display.error(str(request_exception))
return 0
if update_cookies:
self.update_cookies(response.cookies)
return response
def do_login(self, email, password):
response = self.requests_provider(self.BASE_URL)
if response == 0:
self.display.exit("Login: unable to reach Safari Books Online. Try again...")
csrf = []
try:
csrf = html.fromstring(response.text).xpath("//input[@name='csrfmiddlewaretoken'][@value]")
except (html.etree.ParseError, html.etree.ParserError) as parsing_error:
self.display.error(parsing_error)
self.display.exit(
"Login: error trying to parse the home of Safari Books Online."
)
if not len(csrf):
self.display.exit("Login: no CSRF Token found in the page."
" Unable to continue the login."
" Try again...")
csrf = csrf[0].attrib["value"]
response = self.requests_provider(
self.LOGIN_URL,
post=True,
data=(
("csrfmiddlewaretoken", ""), ("csrfmiddlewaretoken", csrf),
("email", email), ("password1", password),
("is_login_form", "true"), ("leaveblank", ""),
("dontchange", "http://")
),
allow_redirects=False
)
if response == 0:
self.display.exit("Login: unable to perform auth to Safari Books Online.\n Try again...")
if response.status_code != 302:
try:
error_page = html.fromstring(response.text)
errors_message = error_page.xpath("//ul[@class='errorlist']//li/text()")
recaptcha = error_page.xpath("//div[@class='g-recaptcha']")
messages = ([" `%s`" % error for error in errors_message
if "password" in error or "email" in error] if len(errors_message) else []) +\
([" `ReCaptcha required (wait or do logout from the website).`"] if len(recaptcha) else[])
self.display.exit("Login: unable to perform auth login to Safari Books Online.\n" +
self.display.SH_YELLOW + "[*]" + self.display.SH_DEFAULT + " Details:\n"
"%s" % "\n".join(messages if len(messages) else [" Unexpected error!"]))
except (html.etree.ParseError, html.etree.ParserError) as parsing_error:
self.display.error(parsing_error)
self.display.exit(
"Login: your login went wrong and it encountered in an error"
" trying to parse the login details of Safari Books Online. Try again..."
)
def get_book_info(self):
response = self.requests_provider(self.api_url)
if response == 0:
self.display.exit("API: unable to retrieve book info.")
response = response.json()
if not isinstance(response, dict) or len(response.keys()) == 1:
self.display.exit(self.display.api_error(response))
if "last_chapter_read" in response:
del response["last_chapter_read"]
return response
def get_book_chapters(self, page=1):
response = self.requests_provider(urljoin(self.api_url, "chapter/?page=%s" % page))
if response == 0:
self.display.exit("API: unable to retrieve book chapters.")
response = response.json()
if not isinstance(response, dict) or len(response.keys()) == 1:
self.display.exit(self.display.api_error(response))
if "results" not in response or not len(response["results"]):
self.display.exit("API: unable to retrieve book chapters.")
if response["count"] > sys.getrecursionlimit():
sys.setrecursionlimit(response["count"])
result = []
result.extend([c for c in response["results"] if "cover" in c["filename"] or "cover" in c["title"]])
for c in result:
del response["results"][response["results"].index(c)]
result += response["results"]
return result + (self.get_book_chapters(page + 1) if response["next"] else [])
def get_default_cover(self):
response = self.requests_provider(self.book_info["cover"], update_cookies=False, stream=True)
if response == 0:
self.display.error("Error trying to retrieve the cover: %s" % self.book_info["cover"])
return False
file_ext = response.headers["Content-Type"].split("/")[-1]
with open(os.path.join(self.images_path, "default_cover." + file_ext), 'wb') as i:
for chunk in response.iter_content(1024):
i.write(chunk)
return "default_cover." + file_ext
def get_html(self, url):
response = self.requests_provider(url)
if response == 0:
self.display.exit(
"Crawler: error trying to retrieve this page: %s (%s)\n From: %s" %
(self.filename, self.chapter_title, url)
)
root = None
try:
root = html.fromstring(response.text, base_url=self.BASE_URL)
except (html.etree.ParseError, html.etree.ParserError) as parsing_error:
self.display.error(parsing_error)
self.display.exit(
"Crawler: error trying to parse this page: %s (%s)\n From: %s" %
(self.filename, self.chapter_title, url)
)
return root
@staticmethod
def url_is_absolute(url):
return bool(urlparse(url).netloc)
def link_replace(self, link):
if link:
if not self.url_is_absolute(link):
if "cover" in link or "images" in link or "graphics" in link or \
link[-3:] in ["jpg", "peg", "png", "gif"]:
link = urljoin(self.base_url, link)
if link not in self.images:
self.images.append(link)
self.display.log("Crawler: found a new image at %s" % link)
image = link.split("/")[-1]
return "Images/" + image
return link.replace(".html", ".xhtml")
else:
if self.book_id in link:
return self.link_replace(link.split(self.book_id)[-1])
return link
@staticmethod
def get_cover(html_root):
images = html_root.xpath("//img[contains(@id, 'cover') or contains(@class, 'cover') or"
"contains(@name, 'cover') or contains(@src, 'cover')]")
if len(images):
return images[0]
divs = html_root.xpath("//div[contains(@id, 'cover') or contains(@class, 'cover') or"
"contains(@name, 'cover') or contains(@src, 'cover')]//img")
if len(divs):
return divs[0]
a = html_root.xpath("//a[contains(@id, 'cover') or contains(@class, 'cover') or"
"contains(@name, 'cover') or contains(@src, 'cover')]//img")
if len(a):
return a[0]
return None
def parse_html(self, root, first_page=False):
if random() > 0.5:
if len(root.xpath("//div[@class='controls']/a/text()")):
self.display.exit(self.display.api_error(" "))
book_content = root.xpath("//div[@id='sbo-rt-content']")
if not len(book_content):
self.display.exit(
"Parser: book content's corrupted or not present: %s (%s)" %
(self.filename, self.chapter_title)
)
page_css = ""
stylesheet_links = root.xpath("//link[@rel='stylesheet']")
if len(stylesheet_links):
stylesheet_count = 0
for s in stylesheet_links:
css_url = urljoin("https:", s.attrib["href"]) if s.attrib["href"][:2] == "//" \
else urljoin(self.base_url, s.attrib["href"])
if css_url not in self.css:
self.css.append(css_url)
self.display.log("Crawler: found a new CSS at %s" % css_url)
page_css += "<link href=\"Styles/Style{0:0>2}.css\" " \
"rel=\"stylesheet\" type=\"text/css\" />\n".format(stylesheet_count)
stylesheet_count += 1
stylesheets = root.xpath("//style")
if len(stylesheets):
for css in stylesheets:
if "data-template" in css.attrib and len(css.attrib["data-template"]):
css.text = css.attrib["data-template"]
del css.attrib["data-template"]
try:
page_css += html.tostring(css, method="xml", encoding='unicode') + "\n"
except (html.etree.ParseError, html.etree.ParserError) as parsing_error:
self.display.error(parsing_error)
self.display.exit(
"Parser: error trying to parse one CSS found in this page: %s (%s)" %
(self.filename, self.chapter_title)
)
# TODO: add all not covered tag for `link_replace` function
svg_image_tags = root.xpath("//image")
if len(svg_image_tags):
for img in svg_image_tags:
image_attr_href = [x for x in img.attrib.keys() if "href" in x]
if len(image_attr_href):
svg_url = img.attrib.get(image_attr_href[0])
svg_root = img.getparent().getparent()
new_img = svg_root.makeelement("img")
new_img.attrib.update({"src": svg_url})
svg_root.remove(img.getparent())
svg_root.append(new_img)
book_content = book_content[0]
book_content.rewrite_links(self.link_replace)
xhtml = None
try:
if first_page:
is_cover = self.get_cover(book_content)
if is_cover is not None:
page_css = "<style>" \
"body{display:table;position:absolute;margin:0!important;height:100%;width:100%;}" \
"#Cover{display:table-cell;vertical-align:middle;text-align:center;}" \
"img{height:90vh;margin-left:auto;margin-right:auto;}" \
"</style>"
cover_html = html.fromstring("<div id=\"Cover\"></div>")
cover_div = cover_html.xpath("//div")[0]
cover_img = cover_div.makeelement("img")
cover_img.attrib.update({"src": is_cover.attrib["src"]})
cover_div.append(cover_img)
book_content = cover_html
self.cover = is_cover.attrib["src"]
xhtml = html.tostring(book_content, method="xml", encoding='unicode')
except (html.etree.ParseError, html.etree.ParserError) as parsing_error:
self.display.error(parsing_error)
self.display.exit(
"Parser: error trying to parse HTML of this page: %s (%s)" %
(self.filename, self.chapter_title)
)
return page_css, xhtml
@staticmethod
def escape_dirname(dirname, clean_space=False):
if ":" in dirname:
if dirname.index(":") > 15:
dirname = dirname.split(":")[0]
elif "win" in sys.platform:
dirname = dirname.replace(":", ",")
for ch in ['~', '#', '%', '&', '*', '{', '}', '\\', '<', '>', '?', '/', '`', '\'', '"', '|', '+']:
if ch in dirname:
dirname = dirname.replace(ch, "_")
return dirname if not clean_space else dirname.replace(" ", "")
def create_dirs(self):
if os.path.isdir(self.BOOK_PATH):
self.display.log("Book directory already exists: %s" % self.BOOK_PATH)
else:
os.makedirs(self.BOOK_PATH)
oebps = os.path.join(self.BOOK_PATH, "OEBPS")
if not os.path.isdir(oebps):
self.display.book_ad_info = True
os.makedirs(oebps)
self.css_path = os.path.join(oebps, "Styles")
if os.path.isdir(self.css_path):
self.display.log("CSSs directory already exists: %s" % self.css_path)
else:
os.makedirs(self.css_path)
self.display.css_ad_info.value = 1
self.images_path = os.path.join(oebps, "Images")
if os.path.isdir(self.images_path):
self.display.log("Images directory already exists: %s" % self.images_path)
else:
os.makedirs(self.images_path)
self.display.images_ad_info.value = 1
def save_page_html(self, contents):
self.filename = self.filename.replace(".html", ".xhtml")
open(os.path.join(self.BOOK_PATH, "OEBPS", self.filename), "wb")\
.write(self.BASE_HTML.format(contents[0], contents[1]).encode("utf-8", 'xmlcharrefreplace'))
self.display.log("Created: %s" % self.filename)
def get(self):
len_books = len(self.book_chapters)
for _ in range(len_books):
if not len(self.chapters_queue):
return
first_page = len_books == len(self.chapters_queue)
next_chapter = self.chapters_queue.pop(0)
self.chapter_title = next_chapter["title"]
self.filename = next_chapter["filename"]
if os.path.isfile(os.path.join(self.BOOK_PATH, "OEBPS", self.filename.replace(".html", ".xhtml"))):
if not self.display.book_ad_info and \
next_chapter not in self.book_chapters[:self.book_chapters.index(next_chapter)]:
self.display.info(
"File `%s` already exists.\n"
" If you want to download again all the book%s,\n"
" please delete the `<BOOK NAME>/OEBPS/*.xhtml` files and restart the program." %
(
self.filename.replace(".html", ".xhtml"),
" (especially because you selected the `--no-kindle` option)"
if self.args.no_kindle else ""
)
)
self.display.book_ad_info = 2
else:
self.save_page_html(self.parse_html(self.get_html(next_chapter["web_url"]), first_page))
self.display.state(len_books, len_books - len(self.chapters_queue))
def _thread_download_css(self, url):
css_file = os.path.join(self.css_path, "Style{0:0>2}.css".format(self.css.index(url)))
if os.path.isfile(css_file):
if not self.display.css_ad_info.value and url not in self.css[:self.css.index(url)]:
self.display.info("File `%s` already exists.\n"
" If you want to download again all the CSSs,\n"
" please delete the `<BOOK NAME>/OEBPS/*.xhtml` and `<BOOK NAME>/OEBPS/Styles/*`"
" files and restart the program." %
css_file)
self.display.css_ad_info.value = 1
else:
response = self.requests_provider(url, update_cookies=False)
if response == 0:
self.display.error("Error trying to retrieve this CSS: %s\n From: %s" % (css_file, url))
with open(css_file, 'wb') as s:
for chunk in response.iter_content(1024):
s.write(chunk)
self.css_done_queue.put(1)
self.display.state(len(self.css), self.css_done_queue.qsize())
def _thread_download_images(self, url):
image_name = url.split("/")[-1]
image_path = os.path.join(self.images_path, image_name)
if os.path.isfile(image_path):
if not self.display.images_ad_info.value and url not in self.images[:self.images.index(url)]:
self.display.info("File `%s` already exists.\n"
" If you want to download again all the images,\n"
" please delete the `<BOOK NAME>/OEBPS/*.xhtml` and `<BOOK NAME>/OEBPS/Images/*`"
" files and restart the program." %
image_name)
self.display.images_ad_info.value = 1
else:
response = self.requests_provider(urljoin(self.BASE_URL, url),
update_cookies=False,
stream=True)
if response == 0:
self.display.error("Error trying to retrieve this image: %s\n From: %s" % (image_name, url))
with open(image_path, 'wb') as img:
for chunk in response.iter_content(1024):
img.write(chunk)
self.images_done_queue.put(1)
self.display.state(len(self.images), self.images_done_queue.qsize())
def _start_multiprocessing(self, operation, full_queue):
if len(full_queue) > 5:
for i in range(0, len(full_queue), 5):
self._start_multiprocessing(operation, full_queue[i:i+5])
else:
process_queue = [Process(target=operation, args=(arg,)) for arg in full_queue]
for proc in process_queue:
proc.start()
for proc in process_queue:
proc.join()
def collect_css(self):
self.display.state_status.value = -1
if "win" in sys.platform:
# TODO
for css_url in self.css:
self._thread_download_css(css_url)
else:
self._start_multiprocessing(self._thread_download_css, self.css)
def collect_images(self):
if self.display.book_ad_info == 2:
self.display.info("Some of the book contents were already downloaded.\n"
" If you want to be sure that all the images will be downloaded,\n"
" please delete the `<BOOK NAME>/OEBPS/*.xhtml` files and restart the program.")
self.display.state_status.value = -1
if "win" in sys.platform:
# TODO
for image_url in self.images:
self._thread_download_images(image_url)
else:
self._start_multiprocessing(self._thread_download_images, self.images)
def create_content_opf(self):
self.css = next(os.walk(self.css_path))[2]
self.images = next(os.walk(self.images_path))[2]
manifest = []
spine = []
for c in self.book_chapters:
c["filename"] = c["filename"].replace(".html", ".xhtml")
item_id = escape("".join(c["filename"].split(".")[:-1]))
manifest.append("<item id=\"{0}\" href=\"{1}\" media-type=\"application/xhtml+xml\" />".format(
item_id, c["filename"]
))
spine.append("<itemref idref=\"{0}\"/>".format(item_id))
for i in set(self.images):
dot_split = i.split(".")
head = "img_" + escape("".join(dot_split[:-1]))
extension = dot_split[-1]
manifest.append("<item id=\"{0}\" href=\"Images/{1}\" media-type=\"image/{2}\" />".format(
head, i, "jpeg" if "jp" in extension else extension
))
for i in range(len(self.css)):
manifest.append("<item id=\"style_{0:0>2}\" href=\"Styles/Style{0:0>2}.css\" "
"media-type=\"text/css\" />".format(i))
authors = "\n".join("<dc:creator opf:file-as=\"{0}\" opf:role=\"aut\">{0}</dc:creator>".format(
escape(aut["name"])
) for aut in self.book_info["authors"])
subjects = "\n".join("<dc:subject>{0}</dc:subject>".format(escape(sub["name"]))
for sub in self.book_info["subjects"])
return self.CONTENT_OPF.format(
(self.book_info["isbn"] if self.book_info["isbn"] else self.book_id),
escape(self.book_title),
authors,
escape(self.book_info["description"]),
subjects,
", ".join(escape(pub["name"]) for pub in self.book_info["publishers"]),
escape(self.book_info["rights"]),
self.book_info["issued"],
self.cover,
"\n".join(manifest),
"\n".join(spine),
self.book_chapters[0]["filename"].replace(".html", ".xhtml")
)
@staticmethod
def parse_toc(l, c=0, mx=0):
r = ""
for cc in l:
c += 1
if int(cc["depth"]) > mx:
mx = int(cc["depth"])
r += "<navPoint id=\"{0}\" playOrder=\"{1}\">" \
"<navLabel><text>{2}</text></navLabel>" \
"<content src=\"{3}\"/>".format(
cc["fragment"] if len(cc["fragment"]) else cc["id"], c,
escape(cc["label"]), cc["href"].replace(".html", ".xhtml").split("/")[-1]
)
if cc["children"]:
sr, c, mx = SafariBooks.parse_toc(cc["children"], c, mx)
r += sr
r += "</navPoint>\n"
return r, c, mx
def create_toc(self):
response = self.requests_provider(urljoin(self.api_url, "toc/"))
if response == 0:
self.display.exit("API: unable to retrieve book chapters. "
"Don't delete any files, just run again this program"
" in order to complete the `.epub` creation!")
response = response.json()
if not isinstance(response, list) and len(response.keys()) == 1:
self.display.exit(
self.display.api_error(response) +
" Don't delete any files, just run again this program"
" in order to complete the `.epub` creation!"
)
navmap, _, max_depth = self.parse_toc(response)
return self.TOC_NCX.format(
(self.book_info["isbn"] if self.book_info["isbn"] else self.book_id),
max_depth,
self.book_title,
", ".join(aut["name"] for aut in self.book_info["authors"]),
navmap
)
def create_epub(self):
open(os.path.join(self.BOOK_PATH, "mimetype"), "w").write("application/epub+zip")
meta_info = os.path.join(self.BOOK_PATH, "META-INF")
if os.path.isdir(meta_info):
self.display.log("META-INF directory already exists: %s" % meta_info)
else:
os.makedirs(meta_info)
open(os.path.join(meta_info, "container.xml"), "wb").write(
self.CONTAINER_XML.encode("utf-8", "xmlcharrefreplace")
)
open(os.path.join(self.BOOK_PATH, "OEBPS", "content.opf"), "wb").write(
self.create_content_opf().encode("utf-8", "xmlcharrefreplace")
)
open(os.path.join(self.BOOK_PATH, "OEBPS", "toc.ncx"), "wb").write(
self.create_toc().encode("utf-8", "xmlcharrefreplace")
)
zip_file = os.path.join(PATH, "Books", self.book_id)
if os.path.isfile(zip_file + ".zip"):
os.remove(zip_file + ".zip")
shutil.make_archive(zip_file, 'zip', self.BOOK_PATH)
os.rename(zip_file + ".zip", os.path.join(self.BOOK_PATH, self.book_id) + ".epub")
# MAIN
arguments = argparse.ArgumentParser(prog="safaribooks.py",
description="Download and generate an EPUB of your favorite books"
" from Safari Books Online.",
add_help=False,
allow_abbrev=False)
arguments.add_argument(
"--cred", metavar="<EMAIL:PASS>", default=False,
help="Credentials used to perform the auth login on Safari Books Online."
" Es. ` --cred \"[email protected]:password01\" `."
)
arguments.add_argument(
"--no-cookies", dest="no_cookies", action='store_true',
help="Prevent your session data to be saved into `cookies.json` file."
)
arguments.add_argument(
"--no-kindle", dest="no_kindle", action='store_true',
help="Remove some CSS rules that block overflow on `table` and `pre` elements."
" Use this option if you're not going to export the EPUB to E-Readers like Amazon Kindle."
)
arguments.add_argument(
"--preserve-log", dest="log", action='store_true', help="Leave the `info_XXXXXXXXXXXXX.log`"
" file even if there isn't any error."
)
arguments.add_argument("--help", action="help", default=argparse.SUPPRESS, help='Show this help message.')
arguments.add_argument(
"bookid", metavar='<BOOK ID>',
help="Book digits ID that you want to download. You can find it in the URL (X-es):"
" `https://www.safaribooksonline.com/library/view/book-name/XXXXXXXXXXXXX/`"
)
args_parsed = arguments.parse_args()
if args_parsed.cred:
cred = args_parsed.cred.split(":")
if len(cred) != 2 or "@" not in cred[0]:
arguments.error("invalid credential: %s" % args_parsed.cred)
args_parsed.cred = cred