feat: Add mercury-parser
This commit is contained in:
ttimasdf
Cristian Vargas
parent
b18bbf8874
commit
706bd895e0
3 changed files with 112 additions and 0 deletions
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@ -81,6 +81,7 @@ CONFIG_DEFAULTS: Dict[str, ConfigDefaultDict] = {
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'SAVE_WGET_REQUISITES': {'type': bool, 'default': True, 'aliases': ('FETCH_WGET_REQUISITES',)},
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'SAVE_SINGLEFILE': {'type': bool, 'default': True, 'aliases': ('FETCH_SINGLEFILE',)},
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'SAVE_READABILITY': {'type': bool, 'default': True, 'aliases': ('FETCH_READABILITY',)},
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'SAVE_MERCURY': {'type': bool, 'default': True, 'aliases': ('FETCH_MERCURY',)},
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'SAVE_PDF': {'type': bool, 'default': True, 'aliases': ('FETCH_PDF',)},
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'SAVE_SCREENSHOT': {'type': bool, 'default': True, 'aliases': ('FETCH_SCREENSHOT',)},
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'SAVE_DOM': {'type': bool, 'default': True, 'aliases': ('FETCH_DOM',)},
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@ -112,6 +113,7 @@ CONFIG_DEFAULTS: Dict[str, ConfigDefaultDict] = {
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'USE_WGET': {'type': bool, 'default': True},
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'USE_SINGLEFILE': {'type': bool, 'default': True},
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'USE_READABILITY': {'type': bool, 'default': True},
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'USE_MERCURY': {'type': bool, 'default': True},
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'USE_GIT': {'type': bool, 'default': True},
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'USE_CHROME': {'type': bool, 'default': True},
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'USE_NODE': {'type': bool, 'default': True},
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@ -122,6 +124,7 @@ CONFIG_DEFAULTS: Dict[str, ConfigDefaultDict] = {
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'WGET_BINARY': {'type': str, 'default': 'wget'},
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'SINGLEFILE_BINARY': {'type': str, 'default': 'single-file'},
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'READABILITY_BINARY': {'type': str, 'default': 'readability-extractor'},
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'MERCURY_BINARY': {'type': str, 'default': 'mercury-parser'},
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'YOUTUBEDL_BINARY': {'type': str, 'default': 'youtube-dl'},
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'CHROME_BINARY': {'type': str, 'default': None},
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},
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@ -265,6 +268,9 @@ DERIVED_CONFIG_DEFAULTS: ConfigDefaultDict = {
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'USE_READABILITY': {'default': lambda c: c['USE_READABILITY'] and c['SAVE_READABILITY']},
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'READABILITY_VERSION': {'default': lambda c: bin_version(c['READABILITY_BINARY']) if c['USE_READABILITY'] else None},
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'USE_MERCURY': {'default': lambda c: c['USE_MERCURY'] and c['SAVE_MERCURY']},
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'MERCURY_VERSION': {'default': lambda c: bin_version(c['MERCURY_BINARY']) if c['USE_MERCURY'] else None},
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'USE_GIT': {'default': lambda c: c['USE_GIT'] and c['SAVE_GIT']},
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'GIT_VERSION': {'default': lambda c: bin_version(c['GIT_BINARY']) if c['USE_GIT'] else None},
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'SAVE_GIT': {'default': lambda c: c['USE_GIT'] and c['SAVE_GIT']},
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@ -283,6 +289,7 @@ DERIVED_CONFIG_DEFAULTS: ConfigDefaultDict = {
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'SAVE_DOM': {'default': lambda c: c['USE_CHROME'] and c['SAVE_DOM']},
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'SAVE_SINGLEFILE': {'default': lambda c: c['USE_CHROME'] and c['USE_SINGLEFILE'] and c['USE_NODE']},
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'SAVE_READABILITY': {'default': lambda c: c['USE_READABILITY'] and c['USE_NODE']},
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'SAVE_MERCURY': {'default': lambda c: c['USE_MERCURY'] and c['USE_NODE']},
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'DEPENDENCIES': {'default': lambda c: get_dependency_info(c)},
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'CODE_LOCATIONS': {'default': lambda c: get_code_locations(c)},
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@ -728,6 +735,13 @@ def get_dependency_info(config: ConfigDict) -> ConfigValue:
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'enabled': config['USE_READABILITY'],
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'is_valid': bool(config['READABILITY_VERSION']),
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},
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'MERCURY_BINARY': {
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'path': bin_path(config['MERCURY_BINARY']),
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'version': config['MERCURY_VERSION'],
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'hash': bin_hash(config['MERCURY_BINARY']),
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'enabled': config['USE_MERCURY'],
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'is_valid': bool(config['MERCURY_VERSION']),
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},
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'GIT_BINARY': {
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'path': bin_path(config['GIT_BINARY']),
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'version': config['GIT_VERSION'],
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@ -57,6 +57,7 @@ class ConfigDict(BaseConfig, total=False):
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SAVE_WGET_REQUISITES: bool
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SAVE_SINGLEFILE: bool
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SAVE_READABILITY: bool
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SAVE_MERCURY: bool
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SAVE_PDF: bool
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SAVE_SCREENSHOT: bool
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SAVE_DOM: bool
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@ -81,6 +82,7 @@ class ConfigDict(BaseConfig, total=False):
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USE_WGET: bool
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USE_SINGLEFILE: bool
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USE_READABILITY: bool
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USE_MERCURY: bool
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USE_GIT: bool
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USE_CHROME: bool
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USE_YOUTUBEDL: bool
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@ -89,6 +91,7 @@ class ConfigDict(BaseConfig, total=False):
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WGET_BINARY: str
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SINGLEFILE_BINARY: str
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READABILITY_BINARY: str
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MERCURY_BINARY: str
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YOUTUBEDL_BINARY: str
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CHROME_BINARY: Optional[str]
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95
archivebox/extractors/mercury.py
Normal file
95
archivebox/extractors/mercury.py
Normal file
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@ -0,0 +1,95 @@
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__package__ = 'archivebox.extractors'
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from pathlib import Path
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from tempfile import NamedTemporaryFile
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from typing import Optional
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import json
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from ..index.schema import Link, ArchiveResult, ArchiveError
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from ..system import run, atomic_write
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from ..util import (
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enforce_types,
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download_url,
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is_static_file,
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)
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from ..config import (
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TIMEOUT,
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CURL_BINARY,
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SAVE_MERCURY,
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DEPENDENCIES,
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MERCURY_VERSION,
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)
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from ..logging_util import TimedProgress
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@enforce_types
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def should_save_mercury(link: Link, out_dir: Optional[str]=None) -> bool:
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out_dir = out_dir or link.link_dir
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if is_static_file(link.url):
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return False
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output = Path(out_dir or link.link_dir) / 'mercury'
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return SAVE_MERCURY and MERCURY_VERSION and (not output.exists())
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@enforce_types
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def save_mercury(link: Link, out_dir: Optional[str]=None, timeout: int=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() / "mercury"
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output = str(output_folder)
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status = 'succeeded'
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timer = TimedProgress(timeout, prefix=' ')
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try:
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cmd = [
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DEPENDENCIES['MERCURY_BINARY']['path'],
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link.url,
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"--format=text"
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]
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result = run(cmd, cwd=out_dir, timeout=timeout)
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txtresult_json = json.loads(result.stdout)
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cmd = [
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DEPENDENCIES['MERCURY_BINARY']['path'],
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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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result_json = json.loads(result.stdout)
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output_folder.mkdir(exist_ok=True)
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atomic_write(str(output_folder / "content.html"), result_json.pop("content"))
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atomic_write(str(output_folder / "content.txt"), txtresult_json["content"])
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atomic_write(str(output_folder / "article.json"), result_json)
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# parse out number of files downloaded from last line of stderr:
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# "Downloaded: 76 files, 4.0M in 1.6s (2.52 MB/s)"
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output_tail = [
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line.strip()
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for line in (result.stdout + result.stderr).decode().rsplit('\n', 20)[-20:]
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if line.strip()
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]
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hints = (
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'Got mercury response code: {}.'.format(result.returncode),
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*output_tail,
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)
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# Check for common failure cases
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if (result.returncode > 0):
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raise ArchiveError('Mercury parser was not able to archive the page', hints)
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except (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=MERCURY_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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