mirror of
https://github.com/ArchiveBox/ArchiveBox
synced 2024-11-29 23:50:22 +00:00
113 lines
3.7 KiB
Python
113 lines
3.7 KiB
Python
__package__ = 'archivebox.extractors'
|
|
|
|
from pathlib import Path
|
|
from tempfile import NamedTemporaryFile
|
|
|
|
from typing import Optional
|
|
import json
|
|
|
|
from ..index.schema import Link, ArchiveResult, ArchiveError
|
|
from ..system import run, atomic_write
|
|
from ..util import (
|
|
enforce_types,
|
|
is_static_file,
|
|
)
|
|
from ..config import (
|
|
TIMEOUT,
|
|
CURL_BINARY,
|
|
SAVE_READABILITY,
|
|
DEPENDENCIES,
|
|
READABILITY_VERSION,
|
|
)
|
|
from ..logging_util import TimedProgress
|
|
from .title import get_html
|
|
|
|
|
|
@enforce_types
|
|
def should_save_readability(link: Link, out_dir: Optional[str]=None, overwrite: Optional[bool]=False) -> bool:
|
|
if is_static_file(link.url):
|
|
return False
|
|
|
|
out_dir = out_dir or Path(link.link_dir)
|
|
if not overwrite and (out_dir / 'readability').exists():
|
|
return False
|
|
|
|
return SAVE_READABILITY
|
|
|
|
|
|
@enforce_types
|
|
def save_readability(link: Link, out_dir: Optional[str]=None, timeout: int=TIMEOUT) -> ArchiveResult:
|
|
"""download reader friendly version using @mozilla/readability"""
|
|
|
|
out_dir = Path(out_dir or link.link_dir)
|
|
output_folder = out_dir.absolute() / "readability"
|
|
output = "readability"
|
|
|
|
# Readability Docs: https://github.com/mozilla/readability
|
|
|
|
status = 'succeeded'
|
|
# fake command to show the user so they have something to try debugging if get_html fails
|
|
cmd = [
|
|
CURL_BINARY,
|
|
link.url
|
|
]
|
|
readability_content = None
|
|
timer = TimedProgress(timeout, prefix=' ')
|
|
try:
|
|
document = get_html(link, out_dir)
|
|
temp_doc = NamedTemporaryFile(delete=False)
|
|
temp_doc.write(document.encode("utf-8"))
|
|
temp_doc.close()
|
|
|
|
if not document or len(document) < 10:
|
|
raise ArchiveError('Readability could not find HTML to parse for article text')
|
|
|
|
cmd = [
|
|
DEPENDENCIES['READABILITY_BINARY']['path'],
|
|
temp_doc.name,
|
|
link.url,
|
|
]
|
|
result = run(cmd, cwd=out_dir, timeout=timeout)
|
|
try:
|
|
result_json = json.loads(result.stdout)
|
|
assert result_json and 'content' in result_json, 'Readability output is not valid JSON'
|
|
except json.JSONDecodeError:
|
|
raise ArchiveError('Readability was not able to archive the page (invalid JSON)', result.stdout + result.stderr)
|
|
|
|
output_folder.mkdir(exist_ok=True)
|
|
readability_content = result_json.pop("textContent")
|
|
atomic_write(str(output_folder / "content.html"), result_json.pop("content"))
|
|
atomic_write(str(output_folder / "content.txt"), readability_content)
|
|
atomic_write(str(output_folder / "article.json"), result_json)
|
|
|
|
output_tail = [
|
|
line.strip()
|
|
for line in (result.stdout + result.stderr).decode().rsplit('\n', 5)[-5:]
|
|
if line.strip()
|
|
]
|
|
hints = (
|
|
'Got readability response code: {}.'.format(result.returncode),
|
|
*output_tail,
|
|
)
|
|
|
|
# Check for common failure cases
|
|
if (result.returncode > 0):
|
|
raise ArchiveError(f'Readability was not able to archive the page (status={result.returncode})', hints)
|
|
except (Exception, OSError) as err:
|
|
status = 'failed'
|
|
output = err
|
|
|
|
# prefer Chrome dom output to singlefile because singlefile often contains huge url(data:image/...base64) strings that make the html too long to parse with readability
|
|
cmd = [cmd[0], './{dom,singlefile}.html']
|
|
finally:
|
|
timer.end()
|
|
|
|
return ArchiveResult(
|
|
cmd=cmd,
|
|
pwd=str(out_dir),
|
|
cmd_version=READABILITY_VERSION,
|
|
output=output,
|
|
status=status,
|
|
index_texts=[readability_content] if readability_content else [],
|
|
**timer.stats,
|
|
)
|