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archivebox/fetch.py
2017-07-08 12:51:06 -05:00

298 lines
12 KiB
Python

import os
import json
from datetime import datetime
from subprocess import run, PIPE, DEVNULL
from parse import derived_link_info
from config import (
ARCHIVE_PERMISSIONS,
CHROME_BINARY,
FETCH_WGET,
FETCH_WGET_REQUISITES,
FETCH_PDF,
FETCH_SCREENSHOT,
RESOLUTION,
SUBMIT_ARCHIVE_DOT_ORG,
FETCH_AUDIO,
FETCH_VIDEO,
FETCH_FAVICON,
WGET_USER_AGENT,
TIMEOUT,
ANSI,
progress,
chmod_file,
)
def fetch_wget(out_dir, link, overwrite=False, requisites=True, timeout=TIMEOUT):
"""download full site using wget"""
if not os.path.exists(os.path.join(out_dir, link['domain'])) or overwrite:
print(' - Downloading full site')
CMD = [
*'wget --timestamping --adjust-extension --no-parent'.split(' '), # Docs: https://www.gnu.org/software/wget/manual/wget.html
*(('--page-requisites', '--convert-links') if requisites else ()),
*(('--user-agent="{}"'.format(WGET_USER_AGENT),) if WGET_USER_AGENT else ()),
link['url'],
]
end = progress(timeout, prefix=' ')
try:
result = run(CMD, stdout=PIPE, stderr=PIPE, cwd=out_dir, timeout=timeout + 1) # index.html
end()
if result.returncode > 0:
print(' wget output:')
print('\n'.join(' ' + line for line in result.stderr.decode().rsplit('\n', 10)[-10:] if line.strip()))
raise Exception('Failed to wget download')
chmod_file(link['domain'], cwd=out_dir)
except Exception as e:
end()
print(' Run to see full output:', 'cd {}; {}'.format(out_dir, ' '.join(CMD)))
print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
else:
print(' √ Skipping site download')
def fetch_pdf(out_dir, link, overwrite=False, timeout=TIMEOUT, chrome_binary=CHROME_BINARY):
"""print PDF of site to file using chrome --headless"""
path = os.path.join(out_dir, 'output.pdf')
if (not os.path.exists(path) or overwrite) and link['type'] not in ('PDF', 'image'):
print(' - Printing PDF')
CMD = [
chrome_binary,
*'--headless --disable-gpu --print-to-pdf'.split(' '),
link['url']
]
end = progress(timeout, prefix=' ')
try:
result = run(CMD, stdout=DEVNULL, stderr=PIPE, cwd=out_dir, timeout=timeout + 1) # output.pdf
end()
if result.returncode:
print(' ', result.stderr.decode())
raise Exception('Failed to print PDF')
chmod_file('output.pdf', cwd=out_dir)
except Exception as e:
end()
print(' Run to see full output:', 'cd {}; {}'.format(out_dir, ' '.join(CMD)))
print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
else:
print(' √ Skipping PDF print')
def fetch_screenshot(out_dir, link, overwrite=False, timeout=TIMEOUT, chrome_binary=CHROME_BINARY, resolution=RESOLUTION):
"""take screenshot of site using chrome --headless"""
path = os.path.join(out_dir, 'screenshot.png')
if (not os.path.exists(path) or overwrite) and link['type'] not in ('PDF', 'image'):
print(' - Snapping Screenshot')
CMD = [
chrome_binary,
*'--headless --disable-gpu --screenshot'.split(' '),
'--window-size={}'.format(resolution),
link['url']
]
end = progress(timeout, prefix=' ')
try:
result = run(CMD, stdout=DEVNULL, stderr=DEVNULL, cwd=out_dir, timeout=timeout + 1) # sreenshot.png
end()
if result.returncode:
print(' ', result.stderr.decode())
raise Exception('Failed to take screenshot')
chmod_file('screenshot.png', cwd=out_dir)
except Exception as e:
end()
print(' Run to see full output:', 'cd {}; {}'.format(out_dir, ' '.join(CMD)))
print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
else:
print(' √ Skipping screenshot')
def archive_dot_org(out_dir, link, overwrite=False, timeout=TIMEOUT):
"""submit site to archive.org for archiving via their service, save returned archive url"""
path = os.path.join(out_dir, 'archive.org.txt')
if not os.path.exists(path) or overwrite:
print(' - Submitting to archive.org')
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=out_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 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]:
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']))
if success:
with open(os.path.join(out_dir, 'archive.org.txt'), 'w', encoding='utf-8') as f:
f.write(saved_url)
chmod_file('archive.org.txt', cwd=out_dir)
else:
print(' √ Skipping archive.org')
def fetch_favicon(out_dir, link, overwrite=False, timeout=TIMEOUT):
"""download site favicon from google's favicon api"""
path = os.path.join(out_dir, 'favicon.ico')
if not os.path.exists(path) or overwrite:
print(' - Fetching Favicon')
CMD = ['curl', 'https://www.google.com/s2/favicons?domain={domain}'.format(**link)]
fout = open('{}/favicon.ico'.format(out_dir), 'w')
end = progress(timeout, prefix=' ')
try:
run(CMD, stdout=fout, stderr=DEVNULL, cwd=out_dir, timeout=timeout + 1) # favicon.ico
end()
chmod_file('favicon.ico', cwd=out_dir)
except Exception as e:
end()
print(' Run to see full output:', ' '.join(CMD))
print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
fout.close()
else:
print(' √ Skipping favicon')
def fetch_audio(out_dir, link, overwrite=False, timeout=TIMEOUT):
"""Download audio rip using youtube-dl"""
if link['type'] not in ('soundcloud',):
return
path = os.path.join(out_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=out_dir, timeout=timeout + 1) # audio/audio.mp3
end()
if result.returncode:
print(' ', result.stderr.decode())
raise Exception('Failed to download audio')
chmod_file('audio', cwd=out_dir)
except Exception as e:
end()
print(' Run to see full output:', 'cd {}; {}'.format(out_dir, ' '.join(CMD)))
print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
else:
print(' √ Skipping audio download')
def fetch_video(out_dir, link, overwrite=False, timeout=TIMEOUT):
"""Download video rip using youtube-dl"""
if link['type'] not in ('youtube', 'youku', 'vimeo'):
return
path = os.path.join(out_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=out_dir, timeout=timeout + 1) # video/movie.mp4
end()
if result.returncode:
print(' ', result.stderr.decode())
raise Exception('Failed to download video')
chmod_file('video', cwd=out_dir)
except Exception as e:
end()
print(' Run to see full output:', 'cd {}; {}'.format(out_dir, ' '.join(CMD)))
print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
else:
print(' √ Skipping video download')
def dump_link_info(out_dir, link, overwrite=False):
"""write a json file with some info about the link"""
info_file_path = os.path.join(out_dir, 'link.json')
if (not os.path.exists(info_file_path) or overwrite):
print(' - Creating link info file')
try:
link_json = derived_link_info(link)
link_json['archived_timstamp'] = str(datetime.now().timestamp()).split('.')[0]
with open(info_file_path, 'w', encoding='utf-8') as link_file:
link_file.write(json.dumps(
link_json,
indent=4,
default=str) + '\n')
chmod_file('link.json', cwd=out_dir)
except Exception as e:
print(' {}Failed: {} {}{}'.format(ANSI['red'], e.__class__.__name__, e, ANSI['reset']))
else:
print(' √ Skipping link info file')
def dump_website(link, service, overwrite=False, permissions=ARCHIVE_PERMISSIONS):
"""download the DOM, PDF, and a screenshot into a folder named after the link's timestamp"""
print('[{green}+{reset}] [{timestamp} ({time})] "{title}": {blue}{base_url}{reset}'.format(**link, **ANSI))
out_dir = os.path.join(service, 'archive', link['timestamp'])
if not os.path.exists(out_dir):
os.makedirs(out_dir)
run(['chmod', permissions, out_dir], timeout=5)
if link['type']:
print(' i Type: {}'.format(link['type']))
if not (link['url'].startswith('http') or link['url'].startswith('ftp')):
print(' {}X Skipping: invalid link.{}', ANSI['red'], ANSI['yellow'])
return
if FETCH_WGET:
fetch_wget(out_dir, link, overwrite=overwrite, requisites=FETCH_WGET_REQUISITES)
if FETCH_PDF:
fetch_pdf(out_dir, link, overwrite=overwrite, chrome_binary=CHROME_BINARY)
if FETCH_SCREENSHOT:
fetch_screenshot(out_dir, link, overwrite=overwrite, chrome_binary=CHROME_BINARY, resolution=RESOLUTION)
if SUBMIT_ARCHIVE_DOT_ORG:
archive_dot_org(out_dir, link, overwrite=overwrite)
if FETCH_AUDIO:
fetch_audio(out_dir, link, overwrite=overwrite)
if FETCH_VIDEO:
fetch_video(out_dir, link, overwrite=overwrite)
if FETCH_FAVICON:
fetch_favicon(out_dir, link, overwrite=overwrite)
dump_link_info(out_dir, link, overwrite=overwrite)