mirror of
https://github.com/ArchiveBox/ArchiveBox
synced 2024-11-22 20:23:12 +00:00
122 lines
3.7 KiB
Python
122 lines
3.7 KiB
Python
__package__ = 'archivebox.extractors'
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from pathlib import Path
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from subprocess import CompletedProcess
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from typing import Optional, List
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import json
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from ..index.schema import Link, ArchiveResult, ArchiveError
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from archivebox.misc.system import run, atomic_write
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from archivebox.misc.util import (
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enforce_types,
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is_static_file,
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)
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from archivebox.plugins_extractor.mercury.config import MERCURY_CONFIG
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from archivebox.plugins_extractor.mercury.binaries import MERCURY_BINARY
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from ..logging_util import TimedProgress
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def get_output_path():
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return 'mercury/'
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def get_embed_path(archiveresult=None):
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return get_output_path() + 'content.html'
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@enforce_types
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def ShellError(cmd: List[str], result: CompletedProcess, lines: int=20) -> ArchiveError:
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# parse out last line of stderr
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return ArchiveError(
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f'Got {cmd[0]} response code: {result.returncode}).',
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" ".join(
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line.strip()
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for line in (result.stdout + result.stderr).decode().rsplit('\n', lines)[-lines:]
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if line.strip()
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),
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)
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@enforce_types
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def should_save_mercury(link: Link, out_dir: Optional[str]=None, overwrite: Optional[bool]=False) -> bool:
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if is_static_file(link.url):
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return False
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out_dir = Path(out_dir or link.link_dir)
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if not overwrite and (out_dir / get_output_path()).exists():
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return False
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return MERCURY_CONFIG.SAVE_MERCURY
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@enforce_types
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def save_mercury(link: Link, out_dir: Optional[Path]=None, timeout: int=MERCURY_CONFIG.MERCURY_TIMEOUT) -> ArchiveResult:
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"""download reader friendly version using @postlight/mercury-parser"""
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out_dir = Path(out_dir or link.link_dir)
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output_folder = out_dir.absolute() / get_output_path()
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output = get_output_path()
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mercury_binary = MERCURY_BINARY.load()
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assert mercury_binary.abspath and mercury_binary.version
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status = 'succeeded'
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timer = TimedProgress(timeout, prefix=' ')
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try:
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output_folder.mkdir(exist_ok=True)
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# later options take precedence
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# By default, get plain text version of article
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cmd = [
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str(mercury_binary.abspath),
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*MERCURY_CONFIG.MERCURY_EXTRA_ARGS,
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'--format=text',
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link.url,
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]
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result = run(cmd, cwd=out_dir, timeout=timeout)
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try:
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article_text = json.loads(result.stdout)
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except json.JSONDecodeError:
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raise ShellError(cmd, result)
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if article_text.get('failed'):
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raise ArchiveError('Mercury was not able to get article text from the URL')
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atomic_write(str(output_folder / "content.txt"), article_text["content"])
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# Get HTML version of article
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cmd = [
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str(mercury_binary.abspath),
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*MERCURY_CONFIG.MERCURY_EXTRA_ARGS,
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link.url
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]
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result = run(cmd, cwd=out_dir, timeout=timeout)
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try:
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article_json = json.loads(result.stdout)
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except json.JSONDecodeError:
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raise ShellError(cmd, result)
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if article_text.get('failed'):
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raise ArchiveError('Mercury was not able to get article HTML from the URL')
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atomic_write(str(output_folder / "content.html"), article_json.pop("content"))
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atomic_write(str(output_folder / "article.json"), article_json)
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# Check for common failure cases
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if (result.returncode > 0):
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raise ShellError(cmd, result)
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except (ArchiveError, Exception, OSError) as err:
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status = 'failed'
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output = err
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finally:
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timer.end()
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return ArchiveResult(
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cmd=cmd,
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pwd=str(out_dir),
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cmd_version=str(mercury_binary.version),
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output=output,
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status=status,
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**timer.stats,
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)
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