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72 lines
2.5 KiB
Python
72 lines
2.5 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2020 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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"""Extract images from https://speakerdeck.com/"""
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from .common import Extractor, Message
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from .. import text
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class SpeakerdeckPresentationExtractor(Extractor):
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"""Extractor for images from a presentation on speakerdeck.com"""
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category = "speakerdeck"
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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\.)?speakerdeck\.com"
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r"/([^/?#]+)/([^/?#]+)")
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test = (
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(("https://speakerdeck.com/speakerdeck/introduction-to-speakerdeck"), {
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"pattern": r"https://files.speakerdeck.com/presentations/"
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r"50021f75cf1db900020005e7/slide_\d+.jpg",
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"content": "75c7abf0969b0bcab23e0da9712c95ee5113db3a",
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"count": 6,
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}),
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)
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def __init__(self, match):
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Extractor.__init__(self, match)
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self.user, self.presentation = match.groups()
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self.presentation_id = None
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def items(self):
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data = self.get_job_metadata()
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imgs = self.get_image_urls()
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data["count"] = len(imgs)
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yield Message.Directory, data
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for data["num"], url in enumerate(imgs, 1):
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yield Message.Url, url, text.nameext_from_url(url, data)
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def get_job_metadata(self):
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"""Collect metadata for extractor-job"""
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url = "https://speakerdeck.com/oembed.json"
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params = {
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"url": "https://speakerdeck.com/" + self.user +
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"/" + self.presentation,
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}
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data = self.request(url, params=params).json()
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self.presentation_id, pos = \
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text.extract(data["html"], 'src="//speakerdeck.com/player/', '"')
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return {
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"user": self.user,
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"presentation": self.presentation,
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"presentation_id": self.presentation_id,
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"title": data["title"],
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"author": data["author_name"],
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}
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def get_image_urls(self):
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"""Extract and return a list of all image-urls"""
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page = self.request("https://speakerdeck.com/player/" +
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self.presentation_id).text
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return list(text.extract_iter(page, 'js-sd-slide" data-url="', '"'))
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