ArchiveBox/archivebox/extractors/screenshot.py
2020-09-17 09:09:52 -05:00

67 lines
1.7 KiB
Python

__package__ = 'archivebox.extractors'
from pathlib import Path
from typing import Optional
from ..index.schema import Link, ArchiveResult, ArchiveOutput, ArchiveError
from ..system import run, chmod_file
from ..util import (
enforce_types,
is_static_file,
chrome_args,
)
from ..config import (
TIMEOUT,
SAVE_SCREENSHOT,
CHROME_VERSION,
)
from ..logging_util import TimedProgress
@enforce_types
def should_save_screenshot(link: Link, out_dir: Optional[Path]=None) -> bool:
out_dir = out_dir or Path(link.link_dir)
if is_static_file(link.url):
return False
if (out_dir / "screenshot.png").exists():
return False
return SAVE_SCREENSHOT
@enforce_types
def save_screenshot(link: Link, out_dir: Optional[Path]=None, timeout: int=TIMEOUT) -> ArchiveResult:
"""take screenshot of site using chrome --headless"""
out_dir = out_dir or Path(link.link_dir)
output: ArchiveOutput = 'screenshot.png'
cmd = [
*chrome_args(TIMEOUT=timeout),
'--screenshot',
link.url,
]
status = 'succeeded'
timer = TimedProgress(timeout, prefix=' ')
try:
result = run(cmd, cwd=str(out_dir), timeout=timeout)
if result.returncode:
hints = (result.stderr or result.stdout).decode()
raise ArchiveError('Failed to save screenshot', hints)
chmod_file(output, cwd=str(out_dir))
except Exception as err:
status = 'failed'
output = err
finally:
timer.end()
return ArchiveResult(
cmd=cmd,
pwd=str(out_dir),
cmd_version=CHROME_VERSION,
output=output,
status=status,
**timer.stats,
)