ArchiveBox/archive_methods.py
2018-04-17 07:00:15 -04:00

441 lines
16 KiB
Python

import os
import sys
from functools import wraps
from datetime import datetime
from subprocess import run, PIPE, DEVNULL
from peekable import Peekable
from index import html_appended_url, parse_json_link_index, write_link_index
from links import links_after_timestamp
from config import (
ARCHIVE_DIR,
CHROME_BINARY,
FETCH_WGET,
FETCH_WGET_REQUISITES,
FETCH_PDF,
FETCH_SCREENSHOT,
RESOLUTION,
CHECK_SSL_VALIDITY,
SUBMIT_ARCHIVE_DOT_ORG,
FETCH_AUDIO,
FETCH_VIDEO,
FETCH_FAVICON,
WGET_USER_AGENT,
CHROME_USER_DATA_DIR,
TIMEOUT,
ANSI,
)
from util import (
check_dependencies,
progress,
chmod_file,
)
_RESULTS_TOTALS = { # globals are bad, mmkay
'skipped': 0,
'succeded': 0,
'failed': 0,
}
def archive_links(archive_path, links, source=None, resume=None):
check_dependencies()
to_archive = Peekable(links_after_timestamp(links, resume))
idx, link = 0, to_archive.peek(0)
try:
for idx, link in enumerate(to_archive):
link_dir = os.path.join(archive_path, 'archive', link['timestamp'])
archive_link(link_dir, link)
except (KeyboardInterrupt, SystemExit, Exception) as e:
print('⏸ [{now}] {lightyellow}Downloading paused on link {timestamp} ({idx}/{total}){reset}'.format(
**ANSI,
now=datetime.now().strftime('%Y-%m-%d %H:%M:%S'),
idx=idx,
timestamp=link['timestamp'],
total=len(list(to_archive)),
))
print(' Continue where you left off by running:')
print(' {} {} {}'.format(
sys.argv[0],
source,
link['timestamp'],
))
if not isinstance(e, KeyboardInterrupt):
raise e
raise SystemExit(1)
def archive_link(link_dir, link, overwrite=False):
"""download the DOM, PDF, and a screenshot into a folder named after the link's timestamp"""
update_existing = os.path.exists(link_dir)
if update_existing:
link = {
**parse_json_link_index(link_dir),
**link,
}
else:
os.makedirs(link_dir)
log_link_archive(link_dir, link, update_existing)
if FETCH_WGET:
link = fetch_wget(link_dir, link, overwrite=overwrite)
if FETCH_PDF:
link = fetch_pdf(link_dir, link, overwrite=overwrite)
if FETCH_SCREENSHOT:
link = fetch_screenshot(link_dir, link, overwrite=overwrite)
if SUBMIT_ARCHIVE_DOT_ORG:
link = archive_dot_org(link_dir, link, overwrite=overwrite)
# if FETCH_AUDIO:
# link = fetch_audio(link_dir, link, overwrite=overwrite)
# if FETCH_VIDEO:
# link = fetch_video(link_dir, link, overwrite=overwrite)
if FETCH_FAVICON:
link = fetch_favicon(link_dir, link, overwrite=overwrite)
write_link_index(link_dir, link)
return link
def log_link_archive(link_dir, link, update_existing):
print('[{symbol_color}{symbol}{reset}] [{timestamp}] "{title}": {blue}{base_url}{reset}'.format(
symbol='*' if update_existing else '+',
symbol_color=ANSI['black' if update_existing else 'green'],
**link,
**ANSI,
))
if link['type']:
print(' i Type: {}'.format(link['type']))
print(' {} ({})'.format(link_dir, 'updating' if update_existing else 'creating'))
def attach_result_to_link(method):
"""
Instead of returning a result={output:'...', status:'success'} object,
attach that result to the links's history & latest fields, then return
the updated link object.
"""
def decorator(fetch_func):
@wraps(fetch_func)
def timed_fetch_func(link_dir, link, overwrite=False, **kwargs):
# initialize methods and history json field on link
link['latest'] = link.get('latest') or {}
link['latest'][method] = link['latest'].get(method) or None
link['history'] = link.get('history') or {}
link['history'][method] = link['history'].get(method) or []
start_ts = datetime.now().timestamp()
# if a valid method output is already present, dont run the fetch function
if link['latest'][method] and not overwrite:
print(' √ Skipping: {}'.format(method))
result = None
else:
print(' - Fetching: {}'.format(method))
result = fetch_func(link_dir, link, **kwargs)
end_ts = datetime.now().timestamp()
duration = str(end_ts * 1000 - start_ts * 1000).split('.')[0]
# append a history item recording fail/success
history_entry = {
'timestamp': str(start_ts).split('.')[0],
}
if result is None:
history_entry['status'] = 'skipped'
elif isinstance(result.get('output'), Exception):
history_entry['status'] = 'failed'
history_entry['duration'] = duration
history_entry.update(result or {})
link['history'][method].append(history_entry)
else:
history_entry['status'] = 'succeded'
history_entry['duration'] = duration
history_entry.update(result or {})
link['history'][method].append(history_entry)
link['latest'][method] = result['output']
_RESULTS_TOTALS[history_entry['status']] += 1
return link
return timed_fetch_func
return decorator
@attach_result_to_link('wget')
def fetch_wget(link_dir, link, requisites=FETCH_WGET_REQUISITES, timeout=TIMEOUT):
"""download full site using wget"""
if os.path.exists(os.path.join(link_dir, link['domain'])):
return {'output': html_appended_url(link), 'status': 'skipped'}
CMD = [
# WGET CLI Docs: https://www.gnu.org/software/wget/manual/wget.html
*'wget -N -E -np -x -H -k -K -S --restrict-file-names=unix'.split(' '),
*(('-p',) if FETCH_WGET_REQUISITES else ()),
*(('--user-agent="{}"'.format(WGET_USER_AGENT),) if WGET_USER_AGENT else ()),
*((() if CHECK_SSL_VALIDITY else ('--no-check-certificate',))),
link['url'],
]
end = progress(timeout, prefix=' ')
try:
result = run(CMD, stdout=PIPE, stderr=PIPE, cwd=link_dir, timeout=timeout + 1) # index.html
end()
output = html_appended_url(link)
if result.returncode > 0:
print(' got wget response code {}:'.format(result.returncode))
print('\n'.join(' ' + line for line in (result.stderr or result.stdout).decode().rsplit('\n', 10)[-10:] if line.strip()))
# raise Exception('Failed to wget download')
except Exception as e:
end()
print(' Run to see full output:', 'cd {}; {}'.format(link_dir, ' '.join(CMD)))
print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
output = e
return {
'cmd': CMD,
'output': output,
}
@attach_result_to_link('pdf')
def fetch_pdf(link_dir, link, timeout=TIMEOUT, user_data_dir=CHROME_USER_DATA_DIR):
"""print PDF of site to file using chrome --headless"""
if link['type'] in ('PDF', 'image'):
return {'output': html_appended_url(link)}
if os.path.exists(os.path.join(link_dir, 'output.pdf')):
return {'output': 'output.pdf', 'status': 'skipped'}
CMD = [
*chrome_headless(user_data_dir=user_data_dir),
'--print-to-pdf',
link['url']
]
end = progress(timeout, prefix=' ')
try:
result = run(CMD, stdout=PIPE, stderr=PIPE, cwd=link_dir, timeout=timeout + 1) # output.pdf
end()
if result.returncode:
print(' ', (result.stderr or result.stdout).decode())
raise Exception('Failed to print PDF')
chmod_file('output.pdf', cwd=link_dir)
output = 'output.pdf'
except Exception as e:
end()
print(' Run to see full output:', 'cd {}; {}'.format(link_dir, ' '.join(CMD)))
print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
output = e
return {
'cmd': CMD,
'output': output,
}
@attach_result_to_link('screenshot')
def fetch_screenshot(link_dir, link, timeout=TIMEOUT, user_data_dir=CHROME_USER_DATA_DIR, resolution=RESOLUTION):
"""take screenshot of site using chrome --headless"""
if link['type'] in ('PDF', 'image'):
return {'output': html_appended_url(link)}
if os.path.exists(os.path.join(link_dir, 'screenshot.png')):
return {'output': 'screenshot.png', 'status': 'skipped'}
CMD = [
*chrome_headless(user_data_dir=user_data_dir),
'--screenshot',
'--window-size={}'.format(resolution),
link['url']
]
end = progress(timeout, prefix=' ')
try:
result = run(CMD, stdout=PIPE, stderr=PIPE, cwd=link_dir, timeout=timeout + 1) # sreenshot.png
end()
if result.returncode:
print(' ', (result.stderr or result.stdout).decode())
raise Exception('Failed to take screenshot')
chmod_file('screenshot.png', cwd=link_dir)
output = 'screenshot.png'
except Exception as e:
end()
print(' Run to see full output:', 'cd {}; {}'.format(link_dir, ' '.join(CMD)))
print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
output = e
return {
'cmd': CMD,
'output': output,
}
@attach_result_to_link('archive_org')
def archive_dot_org(link_dir, link, timeout=TIMEOUT):
"""submit site to archive.org for archiving via their service, save returned archive url"""
path = os.path.join(link_dir, 'archive.org.txt')
if os.path.exists(path):
archive_org_url = open(path, 'r').read().strip()
return {'output': archive_org_url, 'status': 'skipped'}
submit_url = 'https://web.archive.org/save/{}'.format(link['url'].split('?', 1)[0])
success = False
CMD = ['curl', '-I', submit_url]
end = progress(timeout, prefix=' ')
try:
result = run(CMD, stdout=PIPE, stderr=DEVNULL, cwd=link_dir, timeout=timeout + 1) # archive.org.txt
end()
# Parse archive.org response headers
headers = result.stdout.splitlines()
content_location = [h for h in headers if b'Content-Location: ' in h]
errors = [h for h in headers if h and b'X-Archive-Wayback-Runtime-Error: ' in h]
if content_location:
archive_path = content_location[0].split(b'Content-Location: ', 1)[-1].decode('utf-8')
saved_url = 'https://web.archive.org{}'.format(archive_path)
success = True
elif len(errors) == 1 and b'RobotAccessControlException' in errors[0]:
output = submit_url
# raise Exception('Archive.org denied by {}/robots.txt'.format(link['domain']))
elif errors:
raise Exception(', '.join(e.decode() for e in errors))
else:
raise Exception('Failed to find "Content-Location" URL header in Archive.org response.')
except Exception as e:
end()
print(' Visit url to see output:', ' '.join(CMD))
print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
output = e
if success:
with open(os.path.join(link_dir, 'archive.org.txt'), 'w', encoding='utf-8') as f:
f.write(saved_url)
chmod_file('archive.org.txt', cwd=link_dir)
output = saved_url
return {
'cmd': CMD,
'output': output,
}
@attach_result_to_link('favicon')
def fetch_favicon(link_dir, link, timeout=TIMEOUT):
"""download site favicon from google's favicon api"""
if os.path.exists(os.path.join(link_dir, 'favicon.ico')):
return {'output': 'favicon.ico', 'status': 'skipped'}
CMD = ['curl', 'https://www.google.com/s2/favicons?domain={domain}'.format(**link)]
fout = open('{}/favicon.ico'.format(link_dir), 'w')
end = progress(timeout, prefix=' ')
try:
run(CMD, stdout=fout, stderr=DEVNULL, cwd=link_dir, timeout=timeout + 1) # favicon.ico
fout.close()
end()
chmod_file('favicon.ico', cwd=link_dir)
output = 'favicon.ico'
except Exception as e:
fout.close()
end()
print(' Run to see full output:', ' '.join(CMD))
print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
output = e
return {
'cmd': CMD,
'output': output,
}
# @attach_result_to_link('audio')
# def fetch_audio(link_dir, link, timeout=TIMEOUT):
# """Download audio rip using youtube-dl"""
# if link['type'] not in ('soundcloud',)\
# and 'audio' not in link['tags']:
# return
# path = os.path.join(link_dir, 'audio')
# if not os.path.exists(path) or overwrite:
# print(' - Downloading audio')
# CMD = [
# "youtube-dl -x --audio-format mp3 --audio-quality 0 -o '%(title)s.%(ext)s'",
# link['url'],
# ]
# end = progress(timeout, prefix=' ')
# try:
# result = run(CMD, stdout=DEVNULL, stderr=DEVNULL, cwd=link_dir, timeout=timeout + 1) # audio/audio.mp3
# end()
# if result.returncode:
# print(' ', result.stderr.decode())
# raise Exception('Failed to download audio')
# chmod_file('audio.mp3', cwd=link_dir)
# return 'audio.mp3'
# except Exception as e:
# end()
# print(' Run to see full output:', 'cd {}; {}'.format(link_dir, ' '.join(CMD)))
# print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
# raise
# else:
# print(' √ Skipping audio download')
# @attach_result_to_link('video')
# def fetch_video(link_dir, link, timeout=TIMEOUT):
# """Download video rip using youtube-dl"""
# if link['type'] not in ('youtube', 'youku', 'vimeo')\
# and 'video' not in link['tags']:
# return
# path = os.path.join(link_dir, 'video')
# if not os.path.exists(path) or overwrite:
# print(' - Downloading video')
# CMD = [
# "youtube-dl -x --video-format mp4 --audio-quality 0 -o '%(title)s.%(ext)s'",
# link['url'],
# ]
# end = progress(timeout, prefix=' ')
# try:
# result = run(CMD, stdout=DEVNULL, stderr=DEVNULL, cwd=link_dir, timeout=timeout + 1) # video/movie.mp4
# end()
# if result.returncode:
# print(' ', result.stderr.decode())
# raise Exception('Failed to download video')
# chmod_file('video.mp4', cwd=link_dir)
# return 'video.mp4'
# except Exception as e:
# end()
# print(' Run to see full output:', 'cd {}; {}'.format(link_dir, ' '.join(CMD)))
# print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
# raise
# else:
# print(' √ Skipping video download')
def chrome_headless(binary=CHROME_BINARY, user_data_dir=CHROME_USER_DATA_DIR):
args = [binary, '--headless', '--disable-gpu']
default_profile = os.path.expanduser('~/Library/Application Support/Google/Chrome/Default')
if user_data_dir:
args.append('--user-data-dir={}'.format(user_data_dir))
elif os.path.exists(default_profile):
args.append('--user-data-dir={}'.format(default_profile))
return args