656 lines
22 KiB
Python
656 lines
22 KiB
Python
import os
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from functools import wraps
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from collections import defaultdict
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from datetime import datetime
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from index import (
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parse_json_link_index,
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write_link_index,
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patch_index_title_hack,
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)
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from config import (
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CURL_BINARY,
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GIT_BINARY,
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WGET_BINARY,
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YOUTUBEDL_BINARY,
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CHROME_BINARY,
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FETCH_FAVICON,
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FETCH_TITLE,
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FETCH_WGET,
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FETCH_WGET_REQUISITES,
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FETCH_PDF,
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FETCH_SCREENSHOT,
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FETCH_DOM,
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FETCH_WARC,
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FETCH_GIT,
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FETCH_MEDIA,
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RESOLUTION,
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CHECK_SSL_VALIDITY,
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SUBMIT_ARCHIVE_DOT_ORG,
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COOKIES_FILE,
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WGET_USER_AGENT,
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CHROME_USER_DATA_DIR,
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CHROME_HEADLESS,
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CHROME_SANDBOX,
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TIMEOUT,
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MEDIA_TIMEOUT,
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ANSI,
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ARCHIVE_DIR,
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GIT_DOMAINS,
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GIT_SHA,
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)
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from util import (
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domain,
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without_query,
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without_fragment,
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fetch_page_title,
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progress,
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chmod_file,
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pretty_path,
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print_error_hints,
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check_link_structure,
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wget_output_path,
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run, PIPE, DEVNULL,
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)
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_RESULTS_TOTALS = { # globals are bad, mmkay
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'skipped': 0,
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'succeded': 0,
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'failed': 0,
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}
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def load_link_index(link_dir, link):
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"""check for an existing link archive in the given directory,
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and load+merge it into the given link dict
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"""
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is_new = not os.path.exists(link_dir)
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if is_new:
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os.makedirs(link_dir)
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else:
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link = {
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**parse_json_link_index(link_dir),
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**link,
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}
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check_link_structure(link)
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print_link_status_line(link_dir, link, is_new)
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return link
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def archive_link(link_dir, link, overwrite=True):
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"""download the DOM, PDF, and a screenshot into a folder named after the link's timestamp"""
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ARCHIVE_METHODS = (
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(FETCH_TITLE, fetch_title),
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(FETCH_FAVICON, fetch_favicon),
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(FETCH_WGET, fetch_wget),
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(FETCH_PDF, fetch_pdf),
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(FETCH_SCREENSHOT, fetch_screenshot),
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(FETCH_DOM, fetch_dom),
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(FETCH_GIT, fetch_git),
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(FETCH_MEDIA, fetch_media),
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(SUBMIT_ARCHIVE_DOT_ORG, archive_dot_org),
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)
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active_methods = [method for toggle, method in ARCHIVE_METHODS if toggle]
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try:
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link = load_link_index(link_dir, link)
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for archive_method in active_methods:
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archive_method(link_dir, link, overwrite=overwrite)
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write_link_index(link_dir, link)
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except Exception as err:
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print(' ! Failed to archive link: {}: {}'.format(err.__class__.__name__, err))
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return link
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def print_link_status_line(link_dir, link, is_new):
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print('[{symbol_color}{symbol}{reset}] [{now}] "{title}"\n {blue}{url}{reset}'.format(
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symbol='+' if is_new else '*',
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symbol_color=ANSI['green' if is_new else 'black'],
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now=datetime.now().strftime('%Y-%m-%d %H:%M:%S'),
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**{**link, 'title': link['title'] or link['url']},
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**ANSI,
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))
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print(' > {}{}'.format(pretty_path(link_dir), ' (new)' if is_new else ''))
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# if link['type']:
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# print(' i {}'.format(link['type']))
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def attach_result_to_link(method):
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"""
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Instead of returning a result={output:'...', status:'success'} object,
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attach that result to the links's history & latest fields, then return
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the updated link object.
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"""
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def decorator(fetch_func):
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@wraps(fetch_func)
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def timed_fetch_func(link_dir, link, overwrite=False, **kwargs):
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# initialize methods and history json field on link
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link['latest'] = link.get('latest') or {}
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link['latest'][method] = link['latest'].get(method) or None
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link['history'] = link.get('history') or {}
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link['history'][method] = link['history'].get(method) or []
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start_ts = datetime.now().timestamp()
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# if a valid method output is already present, dont run the fetch function
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if link['latest'][method] and not overwrite:
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print(' √ {}'.format(method))
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result = None
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else:
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print(' > {}'.format(method))
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result = fetch_func(link_dir, link, **kwargs)
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end_ts = datetime.now().timestamp()
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duration = str(end_ts * 1000 - start_ts * 1000).split('.')[0]
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# append a history item recording fail/success
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history_entry = {
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'timestamp': str(start_ts).split('.')[0],
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}
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if result is None:
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history_entry['status'] = 'skipped'
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elif isinstance(result.get('output'), Exception):
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history_entry['status'] = 'failed'
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history_entry['duration'] = duration
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history_entry.update(result or {})
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link['history'][method].append(history_entry)
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else:
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history_entry['status'] = 'succeded'
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history_entry['duration'] = duration
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history_entry.update(result or {})
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link['history'][method].append(history_entry)
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link['latest'][method] = result['output']
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_RESULTS_TOTALS[history_entry['status']] += 1
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return link
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return timed_fetch_func
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return decorator
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@attach_result_to_link('wget')
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def fetch_wget(link_dir, link, requisites=FETCH_WGET_REQUISITES, warc=FETCH_WARC, timeout=TIMEOUT):
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"""download full site using wget"""
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domain_dir = os.path.join(link_dir, domain(link['url']))
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existing_file = wget_output_path(link)
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if os.path.exists(domain_dir) and existing_file:
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return {'output': existing_file, 'status': 'skipped'}
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if warc:
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warc_dir = os.path.join(link_dir, 'warc')
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os.makedirs(warc_dir, exist_ok=True)
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warc_path = os.path.join('warc', str(int(datetime.now().timestamp())))
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# WGET CLI Docs: https://www.gnu.org/software/wget/manual/wget.html
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CMD = [
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WGET_BINARY,
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# '--server-response', # print headers for better error parsing
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'--no-verbose',
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'--adjust-extension',
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'--convert-links',
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'--force-directories',
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'--backup-converted',
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'--span-hosts',
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'--no-parent',
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'-e', 'robots=off',
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'--restrict-file-names=unix',
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'--timeout={}'.format(timeout),
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*(() if warc else ('--timestamping',)),
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*(('--warc-file={}'.format(warc_path),) if warc else ()),
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*(('--page-requisites',) if FETCH_WGET_REQUISITES else ()),
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*(('--user-agent={}'.format(WGET_USER_AGENT),) if WGET_USER_AGENT else ()),
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*(('--load-cookies', COOKIES_FILE) if COOKIES_FILE else ()),
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*((() if CHECK_SSL_VALIDITY else ('--no-check-certificate', '--no-hsts'))),
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link['url'],
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]
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end = progress(timeout, prefix=' ')
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try:
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result = run(CMD, stdout=PIPE, stderr=PIPE, cwd=link_dir, timeout=timeout)
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end()
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output = wget_output_path(link, look_in=domain_dir)
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output_tail = [' ' + line for line in (result.stdout + result.stderr).decode().rsplit('\n', 3)[-3:] if line.strip()]
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# parse out number of files downloaded from "Downloaded: 76 files, 4.0M in 1.6s (2.52 MB/s)"
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files_downloaded = (
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int(output_tail[-1].strip().split(' ', 2)[1] or 0)
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if 'Downloaded:' in output_tail[-1]
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else 0
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)
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# Check for common failure cases
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if result.returncode > 0 and files_downloaded < 1:
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print(' Got wget response code {}:'.format(result.returncode))
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print('\n'.join(output_tail))
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if b'403: Forbidden' in result.stderr:
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raise Exception('403 Forbidden (try changing WGET_USER_AGENT)')
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if b'404: Not Found' in result.stderr:
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raise Exception('404 Not Found')
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if b'ERROR 500: Internal Server Error' in result.stderr:
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raise Exception('500 Internal Server Error')
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raise Exception('Got an error from the server')
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except Exception as e:
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end()
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output = e
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print_error_hints(cmd=CMD, pwd=link_dir, err=e)
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return {
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'cmd': CMD,
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'output': output,
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}
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@attach_result_to_link('pdf')
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def fetch_pdf(link_dir, link, timeout=TIMEOUT, user_data_dir=CHROME_USER_DATA_DIR):
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"""print PDF of site to file using chrome --headless"""
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if link['type'] in ('PDF', 'image'):
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return {'output': wget_output_path(link)}
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if os.path.exists(os.path.join(link_dir, 'output.pdf')):
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return {'output': 'output.pdf', 'status': 'skipped'}
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CMD = [
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*chrome_headless(user_data_dir=user_data_dir),
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'--print-to-pdf',
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'--hide-scrollbars',
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'--timeout={}'.format((timeout) * 1000),
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*(() if CHECK_SSL_VALIDITY else ('--disable-web-security', '--ignore-certificate-errors')),
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link['url']
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]
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end = progress(timeout, prefix=' ')
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try:
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result = run(CMD, stdout=PIPE, stderr=PIPE, cwd=link_dir, timeout=timeout)
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end()
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if result.returncode:
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print(' ', (result.stderr or result.stdout).decode())
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raise Exception('Failed to print PDF')
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chmod_file('output.pdf', cwd=link_dir)
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output = 'output.pdf'
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except Exception as e:
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end()
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output = e
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print_error_hints(cmd=CMD, pwd=link_dir, err=e)
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return {
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'cmd': CMD,
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'output': output,
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}
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@attach_result_to_link('screenshot')
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def fetch_screenshot(link_dir, link, timeout=TIMEOUT, user_data_dir=CHROME_USER_DATA_DIR, resolution=RESOLUTION):
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"""take screenshot of site using chrome --headless"""
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if link['type'] in ('PDF', 'image'):
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return {'output': wget_output_path(link)}
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if os.path.exists(os.path.join(link_dir, 'screenshot.png')):
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return {'output': 'screenshot.png', 'status': 'skipped'}
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CMD = [
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*chrome_headless(user_data_dir=user_data_dir),
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'--screenshot',
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'--window-size={}'.format(resolution),
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'--hide-scrollbars',
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'--timeout={}'.format((timeout) * 1000),
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*(() if CHECK_SSL_VALIDITY else ('--disable-web-security', '--ignore-certificate-errors')),
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# '--full-page', # TODO: make this actually work using ./bin/screenshot fullPage: true
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link['url'],
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]
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end = progress(timeout, prefix=' ')
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try:
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result = run(CMD, stdout=PIPE, stderr=PIPE, cwd=link_dir, timeout=timeout)
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end()
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if result.returncode:
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print(' ', (result.stderr or result.stdout).decode())
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raise Exception('Failed to take screenshot')
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chmod_file('screenshot.png', cwd=link_dir)
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output = 'screenshot.png'
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except Exception as e:
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end()
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output = e
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print_error_hints(cmd=CMD, pwd=link_dir, err=e)
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return {
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'cmd': CMD,
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'output': output,
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}
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@attach_result_to_link('dom')
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def fetch_dom(link_dir, link, timeout=TIMEOUT, user_data_dir=CHROME_USER_DATA_DIR):
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"""print HTML of site to file using chrome --dump-html"""
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if link['type'] in ('PDF', 'image'):
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return {'output': wget_output_path(link)}
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output_path = os.path.join(link_dir, 'output.html')
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if os.path.exists(output_path):
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return {'output': 'output.html', 'status': 'skipped'}
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CMD = [
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*chrome_headless(user_data_dir=user_data_dir),
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'--dump-dom',
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'--timeout={}'.format((timeout) * 1000),
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link['url']
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]
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end = progress(timeout, prefix=' ')
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try:
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with open(output_path, 'w+') as f:
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result = run(CMD, stdout=f, stderr=PIPE, cwd=link_dir, timeout=timeout)
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end()
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if result.returncode:
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print(' ', (result.stderr).decode())
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raise Exception('Failed to fetch DOM')
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chmod_file('output.html', cwd=link_dir)
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output = 'output.html'
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except Exception as e:
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end()
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output = e
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print_error_hints(cmd=CMD, pwd=link_dir, err=e)
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return {
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'cmd': CMD,
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'output': output,
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}
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def parse_archive_dot_org_response(response):
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# Parse archive.org response headers
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headers = defaultdict(list)
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# lowercase all the header names and store in dict
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for header in response.splitlines():
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if b':' not in header or not header.strip():
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continue
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name, val = header.decode().split(':', 1)
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headers[name.lower().strip()].append(val.strip())
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# Get successful archive url in "content-location" header or any errors
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content_location = headers['content-location']
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errors = headers['x-archive-wayback-runtime-error']
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return content_location, errors
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@attach_result_to_link('archive_org')
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def archive_dot_org(link_dir, link, timeout=TIMEOUT):
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"""submit site to archive.org for archiving via their service, save returned archive url"""
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output = 'archive.org.txt'
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archive_org_url = None
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path = os.path.join(link_dir, output)
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if os.path.exists(path):
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archive_org_url = open(path, 'r').read().strip()
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return {'output': archive_org_url, 'status': 'skipped'}
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submit_url = 'https://web.archive.org/save/{}'.format(link['url'])
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CMD = [
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CURL_BINARY,
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'--location',
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'--head',
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'--user-agent', 'ArchiveBox/{} (+https://github.com/pirate/ArchiveBox/)'.format(GIT_SHA), # be nice to the Archive.org people and show them where all this ArchiveBox traffic is coming from
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'--max-time', str(timeout),
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*(() if CHECK_SSL_VALIDITY else ('--insecure',)),
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submit_url,
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]
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end = progress(timeout, prefix=' ')
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try:
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result = run(CMD, stdout=PIPE, stderr=DEVNULL, cwd=link_dir, timeout=timeout)
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end()
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content_location, errors = parse_archive_dot_org_response(result.stdout)
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if content_location:
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archive_org_url = 'https://web.archive.org{}'.format(content_location[0])
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elif len(errors) == 1 and 'RobotAccessControlException' in errors[0]:
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archive_org_url = None
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# raise Exception('Archive.org denied by {}/robots.txt'.format(domain(link['url'])))
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elif errors:
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raise Exception(', '.join(errors))
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else:
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raise Exception('Failed to find "content-location" URL header in Archive.org response.')
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except Exception as e:
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end()
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output = e
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print_error_hints(cmd=CMD, pwd=link_dir, err=e)
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if not isinstance(output, Exception):
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# instead of writing None when archive.org rejects the url write the
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# url to resubmit it to archive.org. This is so when the user visits
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# the URL in person, it will attempt to re-archive it, and it'll show the
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# nicer error message explaining why the url was rejected if it fails.
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archive_org_url = archive_org_url or submit_url
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with open(os.path.join(link_dir, output), 'w', encoding='utf-8') as f:
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f.write(archive_org_url)
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chmod_file('archive.org.txt', cwd=link_dir)
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output = archive_org_url
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return {
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'cmd': CMD,
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'output': output,
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}
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@attach_result_to_link('favicon')
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def fetch_favicon(link_dir, link, timeout=TIMEOUT):
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"""download site favicon from google's favicon api"""
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output = 'favicon.ico'
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if os.path.exists(os.path.join(link_dir, output)):
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return {'output': output, 'status': 'skipped'}
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CMD = [
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CURL_BINARY,
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'--max-time', str(timeout),
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'--location',
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'--output', output,
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*(() if CHECK_SSL_VALIDITY else ('--insecure',)),
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'https://www.google.com/s2/favicons?domain={}'.format(domain(link['url'])),
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]
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end = progress(timeout, prefix=' ')
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try:
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run(CMD, stdout=PIPE, stderr=PIPE, cwd=link_dir, timeout=timeout)
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end()
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chmod_file('favicon.ico', cwd=link_dir)
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output = 'favicon.ico'
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except Exception as e:
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end()
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output = e
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print_error_hints(cmd=CMD, pwd=link_dir, err=e)
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return {
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'cmd': CMD,
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'output': output,
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}
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@attach_result_to_link('title')
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def fetch_title(link_dir, link, timeout=TIMEOUT):
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"""try to guess the page's title from its content"""
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# if link already has valid title, skip it
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if link['title'] and not link['title'].lower().startswith('http'):
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return {'output': link['title'], 'status': 'skipped'}
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end = progress(timeout, prefix=' ')
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try:
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title = fetch_page_title(link['url'], timeout=timeout, progress=False)
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end()
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output = title
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except Exception as e:
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end()
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print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
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output = e
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|
|
# titles should show up in the global index immediatley for better UX,
|
|
# do a hacky immediate replacement to add them in as we're archiving
|
|
# TODO: figure out how to do this without gnarly string replacement
|
|
if title:
|
|
link['title'] = title
|
|
patch_index_title_hack(link['url'], title)
|
|
|
|
return {
|
|
'cmd': 'fetch_page_title("{}")'.format(link['url']),
|
|
'output': output,
|
|
}
|
|
|
|
@attach_result_to_link('media')
|
|
def fetch_media(link_dir, link, timeout=MEDIA_TIMEOUT, overwrite=False):
|
|
"""Download playlists or individual video, audio, and subtitles using youtube-dl"""
|
|
|
|
|
|
# import ipdb; ipdb.set_trace()
|
|
output = os.path.join(link_dir, 'media')
|
|
already_done = os.path.exists(output) # and os.listdir(output)
|
|
if already_done and not overwrite:
|
|
return {'output': 'media', 'status': 'skipped'}
|
|
|
|
os.makedirs(output, exist_ok=True)
|
|
CMD = [
|
|
YOUTUBEDL_BINARY,
|
|
'--write-description',
|
|
'--write-info-json',
|
|
'--write-annotations',
|
|
'--yes-playlist',
|
|
'--write-thumbnail',
|
|
'--no-call-home',
|
|
'--no-check-certificate',
|
|
'--user-agent',
|
|
'--all-subs',
|
|
'--extract-audio',
|
|
'--keep-video',
|
|
'--ignore-errors',
|
|
'--geo-bypass',
|
|
'--audio-format', 'mp3',
|
|
'--audio-quality', '320K',
|
|
'--embed-thumbnail',
|
|
'--add-metadata',
|
|
*(() if CHECK_SSL_VALIDITY else ('--no-check-certificate',)),
|
|
link['url'],
|
|
]
|
|
|
|
end = progress(timeout, prefix=' ')
|
|
try:
|
|
result = run(CMD, stdout=PIPE, stderr=PIPE, cwd=output, timeout=timeout + 1)
|
|
chmod_file('media', cwd=link_dir)
|
|
output = 'media'
|
|
end()
|
|
if result.returncode:
|
|
if (b'ERROR: Unsupported URL' in result.stderr
|
|
or b'HTTP Error 404' in result.stderr
|
|
or b'HTTP Error 403' in result.stderr
|
|
or b'URL could be a direct video link' in result.stderr
|
|
or b'Unable to extract container ID' in result.stderr):
|
|
# These happen too frequently on non-media pages to warrant printing to console
|
|
pass
|
|
else:
|
|
print(' got youtubedl response code {}:'.format(result.returncode))
|
|
print(result.stderr)
|
|
raise Exception('Failed to download media')
|
|
except Exception as e:
|
|
end()
|
|
output = e
|
|
print_error_hints(cmd=CMD, pwd=link_dir, err=e)
|
|
|
|
return {
|
|
'cmd': CMD,
|
|
'output': output,
|
|
}
|
|
|
|
|
|
@attach_result_to_link('git')
|
|
def fetch_git(link_dir, link, timeout=TIMEOUT):
|
|
"""download full site using git"""
|
|
|
|
url_is_clonable = (
|
|
domain(link['url']) in GIT_DOMAINS
|
|
or link['url'].endswith('.git')
|
|
or link['type'] == 'git'
|
|
)
|
|
|
|
if not url_is_clonable:
|
|
return {'output': None, 'status': 'skipped'}
|
|
|
|
git_dir = os.path.join(link_dir, 'git')
|
|
if os.path.exists(git_dir):
|
|
return {'output': 'git', 'status': 'skipped'}
|
|
|
|
os.makedirs(git_dir, exist_ok=True)
|
|
output = 'git'
|
|
CMD = [
|
|
GIT_BINARY,
|
|
'clone',
|
|
'--mirror',
|
|
'--recursive',
|
|
*(() if CHECK_SSL_VALIDITY else ('-c', 'http.sslVerify=false')),
|
|
without_query(without_fragment(link['url'])),
|
|
]
|
|
end = progress(timeout, prefix=' ')
|
|
try:
|
|
result = run(CMD, stdout=PIPE, stderr=PIPE, cwd=git_dir, timeout=timeout + 1)
|
|
end()
|
|
|
|
if result.returncode == 128:
|
|
# ignore failed re-download when the folder already exists
|
|
pass
|
|
elif result.returncode > 0:
|
|
print(' got git response code {}:'.format(result.returncode))
|
|
raise Exception('Failed git download')
|
|
except Exception as e:
|
|
end()
|
|
output = e
|
|
print_error_hints(cmd=CMD, pwd=link_dir, err=e)
|
|
|
|
return {
|
|
'cmd': CMD,
|
|
'output': output,
|
|
}
|
|
|
|
def chrome_headless(binary=CHROME_BINARY, user_data_dir=CHROME_USER_DATA_DIR, headless=CHROME_HEADLESS, sandbox=CHROME_SANDBOX):
|
|
global USER_DATA_DIR
|
|
user_data_dir = user_data_dir or USER_DATA_DIR
|
|
cmd_args = [binary]
|
|
|
|
if headless:
|
|
cmd_args += ('--headless',)
|
|
|
|
if not sandbox:
|
|
# dont use GPU or sandbox when running inside docker container
|
|
cmd_args += ('--no-sandbox', '--disable-gpu')
|
|
|
|
|
|
# Find chrome user data directory
|
|
default_profile_paths = (
|
|
'~/.config/chromium',
|
|
'~/.config/google-chrome',
|
|
'~/.config/google-chrome-beta',
|
|
'~/.config/google-chrome-unstable',
|
|
'~/Library/Application Support/Chromium',
|
|
'~/Library/Application Support/Google/Chrome',
|
|
'~/Library/Application Support/Google/Chrome Canary',
|
|
'~/AppData/Local/Chromium/User Data',
|
|
'~/AppData/Local/Google/Chrome/User Data',
|
|
'~/AppData/Local/Google/Chrome SxS/User Data',
|
|
)
|
|
if user_data_dir:
|
|
cmd_args.append('--user-data-dir={}'.format(user_data_dir))
|
|
else:
|
|
for path in default_profile_paths:
|
|
full_path = os.path.expanduser(path)
|
|
if os.path.exists(full_path):
|
|
USER_DATA_DIR = full_path
|
|
cmd_args.append('--user-data-dir={}'.format(full_path))
|
|
break
|
|
return cmd_args
|
|
|
|
|
|
USER_DATA_DIR = CHROME_USER_DATA_DIR
|