mirror of
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113 lines
4.6 KiB
Python
113 lines
4.6 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2016-2022 Mike Fährmann, Leonardo Taccari
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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"""Extractors for https://www.slideshare.net/"""
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from .common import GalleryExtractor
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from .. import text
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import json
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class SlidesharePresentationExtractor(GalleryExtractor):
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"""Extractor for images from a presentation on slideshare.net"""
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category = "slideshare"
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subcategory = "presentation"
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directory_fmt = ("{category}", "{user}")
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filename_fmt = "{presentation}-{num:>02}.{extension}"
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archive_fmt = "{presentation}_{num}"
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pattern = (r"(?:https?://)?(?:www\.)?slideshare\.net"
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r"/(?:mobile/)?([^/?#]+)/([^/?#]+)")
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test = (
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(("https://www.slideshare.net"
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"/Slideshare/get-started-with-slide-share"), {
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"pattern": r"https://image\.slidesharecdn\.com/getstartedwithslide"
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r"share-150520173821-lva1-app6892/95/get-started-with-s"
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r"lide-share-\d+-1024\.jpg\?cb=\d+",
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"count": 19,
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"content": "2b6a191eab60b3978fdacfecf2da302dd45bc108",
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"keyword": {
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"comments": "0",
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"description": "Get Started with SlideShare - "
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"A Beginngers Guide for Creators",
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"likes": r"re:\d{3,}",
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"presentation": "get-started-with-slide-share",
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"published": "dt:2015-05-20 00:00:00",
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"title": "Getting Started With SlideShare",
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"user": "Slideshare",
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"views": r"re:\d{7,}",
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},
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}),
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# long title and description
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(("https://www.slideshare.net/pragmaticsolutions/warum-sie-nicht-ihren"
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"-mitarbeitenden-ndern-sollten-sondern-ihr-managementsystem"), {
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"url": "cf70ca99f57f61affab47ebf8583eb564b21e3a7",
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"keyword": {
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"title": "Warum Sie nicht Ihren Mitarbeitenden ändern "
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"sollten, sondern Ihr Managementsystem",
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"description": "Mitarbeitende verhalten sich mehrheitlich so, "
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"wie das System es ihnen vorgibt. Welche Voraus"
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"setzungen es braucht, damit Ihre Mitarbeitende"
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"n ihr ganzes Herzblut einsetzen, bespricht Fre"
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"di Schmidli in diesem Referat.",
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},
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}),
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# mobile URL
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(("https://www.slideshare.net"
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"/mobile/uqudent/introduction-to-fixed-prosthodontics"), {
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"url": "59993ad7b0cb93c73011547eedcd02c622649e9d",
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}),
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)
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def __init__(self, match):
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self.user, self.presentation = match.groups()
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url = "https://www.slideshare.net/{}/{}".format(
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self.user, self.presentation)
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GalleryExtractor.__init__(self, match, url)
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def metadata(self, page):
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extr = text.extract_from(page)
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descr = extr('<meta name="description" content="', '"')
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title = extr('<span class="j-title-breadcrumb">', '</span>')
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published = extr('<div class="metadata-item">', '</div>')
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comments = extr('content="UserComments:', '"')
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likes = extr('content="UserLikes:', '"')
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views = extr('content="UserPageVisits:', '"')
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if descr.endswith("…"):
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alt_descr = extr('id="slideshow-description-text"', '</p>')
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if alt_descr:
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descr = text.remove_html(alt_descr.partition(">")[2]).strip()
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return {
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"user": self.user,
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"presentation": self.presentation,
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"title": text.unescape(title.strip()),
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"description": text.unescape(descr),
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"views": views,
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"likes": likes,
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"comments": comments,
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"published": text.parse_datetime(
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published.strip(), "%b. %d, %Y"),
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}
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@staticmethod
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def images(page):
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data = json.loads(text.extract(
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page, "xtend(true, slideshare_object.slideshow_config, ", ");")[0])
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# useing 'stripped_title' here is technically wrong, but it works all
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# the same, slideshare doesn't seem to care what characters go there
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begin = "https://image.slidesharecdn.com/{}/95/{}-".format(
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data["ppt_location"], data["stripped_title"])
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end = "-1024.jpg?cb=" + str(data["timestamp"])
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return [
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(begin + str(n) + end, None)
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for n in range(1, data["slide_count"]+1)
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]
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