329 lines
12 KiB
Python
329 lines
12 KiB
Python
# coding: utf-8
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"""
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Everything related to parsing links from bookmark services.
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For a list of supported services, see the README.md.
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For examples of supported files see examples/.
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Parsed link schema: {
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'url': 'https://example.com/example/?abc=123&xyc=345#lmnop',
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'domain': 'example.com',
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'base_url': 'example.com/example/',
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'timestamp': '15442123124234',
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'tags': 'abc,def',
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'title': 'Example.com Page Title',
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'sources': ['ril_export.html', 'downloads/getpocket.com.txt'],
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}
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"""
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import re
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import sys
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import json
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from collections import OrderedDict
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import xml.etree.ElementTree as etree
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from datetime import datetime
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from config import ANSI, SHOW_PROGRESS
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from util import (
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domain,
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base_url,
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str_between,
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get_link_type,
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URL_REGEX,
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)
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def get_parsers(file):
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"""return all parsers that work on a given file, defaults to all of them"""
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return OrderedDict([
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('Pocket HTML', parse_pocket_html_export),
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('Pinboard JSON', parse_pinboard_json_export),
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('Netscape HTML', parse_netscape_html_export),
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('RSS', parse_rss_export),
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('Pinboard RSS', parse_pinboard_rss_export),
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('Shaarli RSS', parse_shaarli_rss_export),
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('Medium RSS', parse_medium_rss_export),
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('Plain Text', parse_plain_text_export),
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])
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def parse_links(path):
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"""parse a list of links dictionaries from a bookmark export file"""
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links = []
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with open(path, 'r', encoding='utf-8') as file:
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print('{green}[*] [{}] Parsing new links from output/sources/{}...{reset}'.format(
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datetime.now().strftime('%Y-%m-%d %H:%M:%S'),
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path.rsplit('/', 1)[-1],
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**ANSI,
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))
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for parser_name, parser_func in get_parsers(file).items():
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# otherwise try all parsers until one works
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try:
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links += list(parser_func(file))
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if links:
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break
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except Exception as err:
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# we try each parser one by one, each parser will throw exeption an exception if unsupported
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# so we accept the first one that
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# uncomment the following line to see why the parser was unsupported for each attempted format
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# print('[!] Parser {} failed: {} {}'.format(parser_name, err.__class__.__name__, err))
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pass
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return links, parser_name
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def parse_pocket_html_export(html_file):
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"""Parse Pocket-format bookmarks export files (produced by getpocket.com/export/)"""
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html_file.seek(0)
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pattern = re.compile("^\\s*<li><a href=\"(.+)\" time_added=\"(\\d+)\" tags=\"(.*)\">(.+)</a></li>", re.UNICODE)
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for line in html_file:
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# example line
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# <li><a href="http://example.com/ time_added="1478739709" tags="tag1,tag2">example title</a></li>
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match = pattern.search(line)
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if match:
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fixed_url = match.group(1).replace('http://www.readability.com/read?url=', '') # remove old readability prefixes to get original url
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time = datetime.fromtimestamp(float(match.group(2)))
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info = {
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'url': fixed_url,
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'domain': domain(fixed_url),
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'base_url': base_url(fixed_url),
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'timestamp': str(time.timestamp()),
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'tags': match.group(3),
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'title': match.group(4).replace(' — Readability', '').replace('http://www.readability.com/read?url=', '') or None,
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'sources': [html_file.name],
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}
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info['type'] = get_link_type(info)
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yield info
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def parse_pinboard_json_export(json_file):
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"""Parse JSON-format bookmarks export files (produced by pinboard.in/export/, or wallabag)"""
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json_file.seek(0)
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json_content = json.load(json_file)
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for line in json_content:
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# example line
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# {"href":"http:\/\/www.reddit.com\/r\/example","description":"title here","extended":"","meta":"18a973f09c9cc0608c116967b64e0419","hash":"910293f019c2f4bb1a749fb937ba58e3","time":"2014-06-14T15:51:42Z","shared":"no","toread":"no","tags":"reddit android"}]
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if line:
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erg = line
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if erg.get('timestamp'):
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timestamp = str(erg['timestamp']/10000000) # chrome/ff histories use a very precise timestamp
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elif erg.get('time'):
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timestamp = str(datetime.strptime(erg['time'].split(',', 1)[0], '%Y-%m-%dT%H:%M:%SZ').timestamp())
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elif erg.get('created_at'):
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timestamp = str(datetime.strptime(erg['created_at'], '%Y-%m-%dT%H:%M:%S%z').timestamp())
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else:
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timestamp = str(datetime.now().timestamp())
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if erg.get('href'):
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url = erg['href']
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else:
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url = erg['url']
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if erg.get('description'):
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title = (erg.get('description') or '').replace(' — Readability', '')
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else:
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title = erg['title'].strip()
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info = {
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'url': url,
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'domain': domain(url),
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'base_url': base_url(url),
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'timestamp': timestamp,
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'tags': erg.get('tags') or '',
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'title': title or None,
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'sources': [json_file.name],
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}
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info['type'] = get_link_type(info)
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yield info
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def parse_rss_export(rss_file):
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"""Parse RSS XML-format files into links"""
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rss_file.seek(0)
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items = rss_file.read().split('</item>\n<item>')
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for item in items:
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# example item:
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# <item>
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# <title><![CDATA[How JavaScript works: inside the V8 engine]]></title>
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# <category>Unread</category>
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# <link>https://blog.sessionstack.com/how-javascript-works-inside</link>
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# <guid>https://blog.sessionstack.com/how-javascript-works-inside</guid>
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# <pubDate>Mon, 21 Aug 2017 14:21:58 -0500</pubDate>
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# </item>
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trailing_removed = item.split('</item>', 1)[0]
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leading_removed = trailing_removed.split('<item>', 1)[-1]
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rows = leading_removed.split('\n')
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def get_row(key):
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return [r for r in rows if r.strip().startswith('<{}>'.format(key))][0]
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title = str_between(get_row('title'), '<![CDATA[', ']]').strip()
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url = str_between(get_row('link'), '<link>', '</link>')
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ts_str = str_between(get_row('pubDate'), '<pubDate>', '</pubDate>')
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time = datetime.strptime(ts_str, "%a, %d %b %Y %H:%M:%S %z")
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info = {
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'url': url,
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'domain': domain(url),
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'base_url': base_url(url),
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'timestamp': str(time.timestamp()),
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'tags': '',
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'title': title or None,
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'sources': [rss_file.name],
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}
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info['type'] = get_link_type(info)
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yield info
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def parse_shaarli_rss_export(rss_file):
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"""Parse Shaarli-specific RSS XML-format files into links"""
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rss_file.seek(0)
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entries = rss_file.read().split('<entry>')[1:]
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for entry in entries:
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# example entry:
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# <entry>
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# <title>Aktuelle Trojaner-Welle: Emotet lauert in gefälschten Rechnungsmails | heise online</title>
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# <link href="https://www.heise.de/security/meldung/Aktuelle-Trojaner-Welle-Emotet-lauert-in-gefaelschten-Rechnungsmails-4291268.html" />
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# <id>https://demo.shaarli.org/?cEV4vw</id>
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# <published>2019-01-30T06:06:01+00:00</published>
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# <updated>2019-01-30T06:06:01+00:00</updated>
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# <content type="html" xml:lang="en"><![CDATA[<div class="markdown"><p>— <a href="https://demo.shaarli.org/?cEV4vw">Permalink</a></p></div>]]></content>
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# </entry>
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trailing_removed = entry.split('</entry>', 1)[0]
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leading_removed = trailing_removed.strip()
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rows = leading_removed.split('\n')
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def get_row(key):
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return [r.strip() for r in rows if r.strip().startswith('<{}'.format(key))][0]
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title = str_between(get_row('title'), '<title>', '</title>').strip()
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url = str_between(get_row('link'), '<link href="', '" />')
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ts_str = str_between(get_row('published'), '<published>', '</published>')
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time = datetime.strptime(ts_str, "%Y-%m-%dT%H:%M:%S%z")
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info = {
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'url': url,
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'domain': domain(url),
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'base_url': base_url(url),
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'timestamp': str(time.timestamp()),
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'tags': '',
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'title': title or None,
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'sources': [rss_file.name],
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}
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info['type'] = get_link_type(info)
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yield info
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def parse_netscape_html_export(html_file):
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"""Parse netscape-format bookmarks export files (produced by all browsers)"""
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html_file.seek(0)
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pattern = re.compile("<a href=\"(.+?)\" add_date=\"(\\d+)\"[^>]*>(.+)</a>", re.UNICODE | re.IGNORECASE)
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for line in html_file:
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# example line
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# <DT><A HREF="https://example.com/?q=1+2" ADD_DATE="1497562974" LAST_MODIFIED="1497562974" ICON_URI="https://example.com/favicon.ico" ICON="data:image/png;base64,...">example bookmark title</A>
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match = pattern.search(line)
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if match:
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url = match.group(1)
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time = datetime.fromtimestamp(float(match.group(2)))
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info = {
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'url': url,
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'domain': domain(url),
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'base_url': base_url(url),
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'timestamp': str(time.timestamp()),
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'tags': "",
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'title': match.group(3).strip() or None,
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'sources': [html_file.name],
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}
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info['type'] = get_link_type(info)
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yield info
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def parse_pinboard_rss_export(rss_file):
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"""Parse Pinboard RSS feed files into links"""
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rss_file.seek(0)
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root = etree.parse(rss_file).getroot()
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items = root.findall("{http://purl.org/rss/1.0/}item")
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for item in items:
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url = item.find("{http://purl.org/rss/1.0/}link").text
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tags = item.find("{http://purl.org/dc/elements/1.1/}subject").text
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title = item.find("{http://purl.org/rss/1.0/}title").text.strip()
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ts_str = item.find("{http://purl.org/dc/elements/1.1/}date").text
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# = 🌈🌈🌈🌈
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# = 🌈🌈🌈🌈
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# = 🏆🏆🏆🏆
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# Pinboard includes a colon in its date stamp timezone offsets, which
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# Python can't parse. Remove it:
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if ":" == ts_str[-3:-2]:
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ts_str = ts_str[:-3]+ts_str[-2:]
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time = datetime.strptime(ts_str, "%Y-%m-%dT%H:%M:%S%z")
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info = {
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'url': url,
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'domain': domain(url),
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'base_url': base_url(url),
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'timestamp': str(time.timestamp()),
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'tags': tags,
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'title': title or None,
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'sources': [rss_file.name],
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}
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info['type'] = get_link_type(info)
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yield info
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def parse_medium_rss_export(rss_file):
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"""Parse Medium RSS feed files into links"""
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rss_file.seek(0)
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root = etree.parse(rss_file).getroot()
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items = root.find("channel").findall("item")
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for item in items:
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# for child in item:
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# print(child.tag, child.text)
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url = item.find("link").text
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title = item.find("title").text.strip()
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ts_str = item.find("pubDate").text
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time = datetime.strptime(ts_str, "%a, %d %b %Y %H:%M:%S %Z")
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info = {
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'url': url,
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'domain': domain(url),
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'base_url': base_url(url),
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'timestamp': str(time.timestamp()),
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'tags': '',
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'title': title or None,
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'sources': [rss_file.name],
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}
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info['type'] = get_link_type(info)
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yield info
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def parse_plain_text_export(text_file):
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"""Parse raw links from each line in a text file"""
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text_file.seek(0)
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text_content = text_file.readlines()
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for line in text_content:
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if line:
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urls = re.findall(URL_REGEX, line)
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for url in urls:
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url = url.strip()
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info = {
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'url': url,
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'domain': domain(url),
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'base_url': base_url(url),
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'timestamp': str(datetime.now().timestamp()),
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'tags': '',
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'title': None,
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'sources': [text_file.name],
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}
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info['type'] = get_link_type(info)
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yield info
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