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AlphaPulse/backend/src/alphapulse/crawler/spiders/us_official.py
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Fix official policy selection and persistent attachment gaps
Read the OFAC action body and use focused macro policy phrases, including national budgets, appropriations and reserve policies. Keep unknown image text as an explicit gap instead of treating it as complete or irrelevant.\n\nPreserve meeting attachment retries and derive pending/exhausted document counts from saved source cursors. Cover real selection negatives, positive macro boundaries and attachment failures with isolated regressions.
2026-11-04 23:39:29 +08:00

593 lines
34 KiB
Python

"""US official collectors: serialized documents, bounded history, durable page cursors."""
import copy
import json
import re
import time
import uuid
from datetime import UTC, datetime, timedelta
from html import escape, unescape
from lxml import etree
from urllib.parse import parse_qsl, urlencode, urlsplit, urlunsplit
from scrapy import Request
from scrapy.http import Response
from sqlalchemy import select
from alphapulse.calendar.umich import pdf_text
from alphapulse.core.config import get_settings
from alphapulse.core.db import SessionLocal
from alphapulse.core.us_news import RULE_VERSION, SOURCES, article, identity, official_url, published, selection, validate_body
from alphapulse.crawler.spiders.base import HISTORY_RUN_SECONDS, NewsSpider, html_to_text
from alphapulse.models import NewsItem, Source
def configure_url(url, **params):
parts = urlsplit(url)
query = dict(parse_qsl(parts.query))
query.update(params)
return urlunsplit(parts._replace(query=urlencode(query)))
def congress_bill_url(api_url):
parts = urlsplit(api_url).path.strip('/').split('/')
_, _, congress, kind, number = parts
labels = {'hr': 'house-bill', 's': 'senate-bill', 'hjres': 'house-joint-resolution', 'sjres': 'senate-joint-resolution', 'hconres': 'house-concurrent-resolution', 'sconres': 'senate-concurrent-resolution', 'hres': 'house-resolution', 'sres': 'senate-resolution'}
return f'https://www.congress.gov/bill/{congress}th-congress/{labels[kind.lower()]}/{number}'
def configuration_error(code):
settings = get_settings()
if code == 'congress' and not settings.congress_api_key:
return '待配置 CONGRESS_API_KEY'
if code == 'sec' and not settings.crawler_contact_email:
return '待配置 CRAWLER_CONTACT_EMAIL'
return None
class USOfficialSpider(NewsSpider):
"""Each lane holds only one page's remaining documents and its next URL."""
custom_settings = {"DOWNLOAD_MAXSIZE": 25 * 1024 * 1024}
def make_request_from_data(self, data):
if getattr(self, '_starting', False):
return []
if self.run is not None:
if not self.crawler.engine.spider_is_idle():
return super().make_request_from_data(data)
self._close_run()
self._starting = True
self._spawn(self.start_round(json.loads(data)['trigger']))
return []
def _close_run(self):
self._checkpoint_run = self.run
self._checkpoint_attempts = 1
super()._close_run()
async def start_round(self, trigger):
try:
if self.finish_task is not None:
if self.finish_task.done() and not self.finish_task.cancelled() and self.finish_task.exception() is not None and getattr(self, '_checkpoint_run', None) is not None:
if self._checkpoint_attempts >= 3:
self.logger.error('断点保存连续失败3次,需重启采集进程;未启动下一轮')
return
self._checkpoint_attempts += 1
self.finish_task = self._spawn(self._finish_run(self._checkpoint_run))
await self.finish_task
async with SessionLocal() as session:
source = await session.get(Source, self.name)
if source is None or not source.enabled:
return
if source.paused_until and source.paused_until > datetime.now(UTC):
return
self.cursor = copy.deepcopy(source.history_cursor or {})
history = (source.history_target, source.history_position) if source.history_target and not source.history_done else None
hours = source.backfill_hours
requests = super().make_request_from_data(json.dumps({'trigger': trigger, 'backfill_hours': hours}).encode())
self.run.official_cursor = self.cursor
if history:
target, position = history
self.run.history_target = target
self.run.history_position = position or self.run.started_at
self.run.history_deadline = time.monotonic() + HISTORY_RUN_SECONDS
state = self.cursor.setdefault('history', {'entry': 0})
if state.get('target') != target.isoformat():
self.cursor['history'] = {'entry': 0, 'target': target.isoformat()}
requests += self.advance('history')
for request in requests:
self.crawler.engine.crawl(request)
except Exception:
self.logger.exception('官方采集轮次启动失败,未使用队列旧断点')
if self.run is not None:
self.run.errors.append('官方采集轮次启动失败')
finally:
self._starting = False
def first_requests(self):
if self.name == 'doj' and self.cursor.get('transport') != 'doj-api-v1':
# Retain retry evidence; HTML discovery cursors cannot use API pagination.
self.cursor = {k: v for k, v in self.cursor.items() if k not in ('history', 'realtime', 'checked')}
self.cursor['transport'] = 'doj-api-v1'
self.run.official_cursor = self.cursor
error = configuration_error(self.name)
if error:
self.run.errors.append(error)
return []
state = self.cursor.setdefault('realtime', {'entry': 0})
due = [value['document'] for value in self.cursor.get('attachment_retries', {}).values() if value['attempts'] < 3 and value['next_at'] <= self.run.started_at.timestamp()]
if due and not state.get('pending'):
state['pending'] = [{**doc, 'attachment_retry': True} for doc in due]
bill_due = [{**v['document'], 'bill_retry': True} for v in self.cursor.get('bill_retries', {}).values() if v['attempts'] < 3 and v['next_at'] <= self.run.started_at.timestamp()]
if bill_due:
state.setdefault('pending', []).extend(d for d in bill_due if d['url'] not in {p['url'] for p in state['pending']})
self.run.stats['unresolved_bills'] = len(self.cursor.get('bill_retries', {}))
return self.advance('realtime')
def request_for(self, url, callback, lane, **meta):
url = official_url(self.name, url)
request = self.request(url, callback, lane=lane, official_source=self.name, **meta)
request.priority = 10 if lane == 'realtime' else -10
# Credentials never travel to document hosts or into persisted URLs.
if urlsplit(url).hostname == 'api.congress.gov':
request.headers['X-Api-Key'] = get_settings().congress_api_key
request.headers['User-Agent'] = 'AlphaPulse official news collector ' + get_settings().crawler_contact_email
return request
def advance(self, lane):
state = self.cursor[lane]
if configuration_error(self.name):
return []
if lane == 'history' and time.monotonic() >= self.run.history_deadline:
return []
if state.get('pending'):
doc = state['pending'][0]
if doc['kind'] == 'bill_finish':
self.finish_bill(lane)
return self.advance(lane)
if doc['kind'] == 'actions' and not state['bill']['reasons']:
state['pending'].pop(0)
return self.advance(lane)
return [self.request_for(doc['url'], self.parse_document, lane, document=doc)]
if state.get('page_finished'):
if state.pop('day_complete', False):
state['day'] = (datetime.fromisoformat(state['day']) - timedelta(days=1)).date().isoformat()
state['entry'] -= 1
if state.get('next'):
state['page'] = state.pop('next')
else:
state['entry'] += 1
state.pop('page', None)
state.pop('visited_pages', None)
state.pop('page_finished', None)
spec = SOURCES[self.name]
if state['entry'] >= len(spec.entries):
if lane == 'history':
self.run.stats['attachment_gaps'] = len(self.cursor.get('attachment_retries', {}))
self.run.history_done = True
self.run.history_position = self.run.history_target
state['scanned'] = True
else:
self.cursor['realtime'] = {'entry': 0}
return []
url = state.get('page') or spec.entries[state['entry']]
if self.name == 'congress' and not state.get('page'):
begin = self.run.history_target if lane == 'history' else self.run.cutoff
url = configure_url(url, fromDateTime=begin.strftime('%Y-%m-%dT%H:%M:%SZ'), toDateTime=self.run.started_at.strftime('%Y-%m-%dT%H:%M:%SZ'))
if self.name == 'federal_register' and not state.get('page'):
begin = self.run.history_target if lane == 'history' else self.run.cutoff
# Daily partitions stay below the API's 2,000-result pagination ceiling.
day = state.setdefault('day', self.run.started_at.date().isoformat())
if day < begin.date().isoformat():
state['entry'] += 1
return self.advance(lane)
url = configure_url(url, **{'conditions[publication_date][is]': day, 'per_page': '1000', 'order': 'oldest'})
state['page'] = url
return [self.request_for(url, self.parse_listing, lane)]
def parse_listing(self, response):
lane = response.meta['lane']
state = self.cursor[lane]
docs, next_url = [], None
if self.name == 'doj':
data = response.json()
resultset = data['metadata']['resultset']
if data['metadata']['responseInfo']['status'] != 200 or not isinstance(data['results'], list):
raise ValueError('DOJ API 列表结构未识别')
dates = []
for record in data['results']:
dates.append(datetime.fromtimestamp(int(record['date']), UTC))
docs.append({'url': f"https://www.justice.gov/api/v1/press_releases/{uuid.UUID(record['uuid'])}.json", 'kind': 'doj'})
page, size, count = (int(resultset[k]) for k in ('page', 'pagesize', 'count'))
if size <= 0 or page < 0 or (not docs and page * size < count):
raise ValueError('DOJ API 分页结果不完整')
begin = self.run.history_target if lane == 'history' else self.run.cutoff
if (page + 1) * size < count and not (dates and all(d.date() < begin.date() for d in dates)):
next_url = configure_url(response.url, page=page + 1)
elif self.name == 'fed' and response.url.endswith('releaseDates.json'):
data = response.json()
if not isinstance(data, list) or not data:
raise ValueError('H.4.1 日期列表结构未识别')
docs = [{'url': f'https://www.federalreserve.gov/releases/h41/{day}/', 'kind': 'article'} for year in data for month in year['Months'] for day in month['Dates'] if int(year['yearValue']) >= 2025]
docs.sort(key=lambda d: d['url'], reverse=True)
elif self.name in ('congress', 'federal_register'):
data = response.json()
key = ('committeeMeetings' if '/committee-meeting' in response.url else 'bills') if self.name == 'congress' else 'results'
if key not in data or not isinstance(data[key], list):
raise ValueError('官方 API 列表结构未识别')
if self.name == 'federal_register' and data.get('count', 0) > 2000:
day = state['day']
url = f'https://www.govinfo.gov/content/pkg/FR-{day}/xml/FR-{day}.xml'
state['pending'] = [{'url': url, 'kind': 'register_issue', 'day': day, 'count': data['count']}]
yield from self.advance(lane)
return
for doc in data[key]:
if self.name == 'congress':
docs.append({'url': configure_url(doc['url'], format='json'), 'kind': 'meeting' if key == 'committeeMeetings' else 'bill'})
else:
docs.append({'url': f"https://www.federalregister.gov/api/v1/documents/{doc['document_number']}.json", 'kind': 'register'})
next_url = data.get('pagination', {}).get('next') if self.name == 'congress' else data.get('next_page_url')
else:
if not response.css('h1'):
raise ValueError('官方列表页面未识别')
pattern = SOURCES[self.name].article_path
for a in response.css('a[href]'):
try:
url = official_url(self.name, a.attrib['href'], response.url)
except ValueError:
continue
if re.search(pattern, urlsplit(url).path) and url not in SOURCES[self.name].entries and not re.search(r'/\d{4}-(?:press|speeches|testimony)\.htm$', urlsplit(url).path) and not url.lower().endswith('.pdf'):
doc = {'url': url, 'kind': 'article'}
if self.name == 'fed' and '/monetarypolicy/fomcminutes' in url:
# The URL identifies the meeting; the calendar gives the release day.
match = re.search(r'Released\s+([A-Za-z]+ \d{1,2}, \d{4})', a.xpath('normalize-space(parent::*)').get() or '')
if not match:
raise ValueError('FOMC 纪要链接缺少官方发布日期')
doc.update(release_date=published(match[1])[0].date().isoformat(), release_date_source=response.url)
docs.append(doc)
if a.attrib.get('rel') == 'next' or re.match(r'^(?:Next|Next page|下一页)', a.xpath('normalize-space(.)').get() or '', re.I):
next_url = url
docs = list({d['url']: d for d in docs}.values())
if not docs:
raise ValueError('官方列表未发现文档,不能认定历史遍历完成')
if self.name == 'fed':
begin = self.run.history_target if lane == 'history' else self.run.cutoff
def in_range(doc):
if doc.get('release_date'):
day = published(doc['release_date'])[0].date()
elif match := re.search(r'((?:19|20)\d{6})', doc['url']):
day = datetime.strptime(match[1], '%Y%m%d').date()
else:
return True
return day >= begin.date()
docs = [doc for doc in docs if in_range(doc)]
if lane == 'realtime':
# OFAC's recent-actions entry is a descending day-indexed feed.
if self.name == 'ofac' and docs:
days = [re.search(r'/recent-actions/(\d{8})', d['url']) for d in docs]
if all(days) and all(m[1] < self.run.cutoff.strftime('%Y%m%d') for m in days):
next_url = None
checked = self.cursor.setdefault('checked', {})
threshold = (self.run.started_at - timedelta(hours=24)).timestamp()
self.cursor['checked'] = {k: v for k, v in checked.items() if v >= threshold}
docs = [d for d in docs if self.cursor['checked'].get(d['url'], 0) < threshold]
if next_url and official_url(self.name, next_url, response.url) == response.url:
raise ValueError('官方列表翻页重复当前页面,未推进断点')
visited = state.setdefault('visited_pages', [])
if response.url in visited:
raise ValueError('官方列表分页出现循环,未推进断点')
visited.append(response.url)
if next_url and official_url(self.name, next_url, response.url) in visited:
raise ValueError('官方列表分页出现循环,未推进断点')
state['pending'] = docs
state['next'] = official_url(self.name, next_url, response.url) if next_url else None
state['page_finished'] = True
self.run.stats['discovered'] = self.run.stats.get('discovered', 0) + len(docs)
if self.name == 'federal_register' and not next_url:
state['day_complete'] = True
yield from self.advance(lane)
async def parse_document(self, response):
lane, doc = response.meta['lane'], response.meta['document']
if doc['kind'] == 'register_issue':
root = etree.fromstring(response.body, etree.XMLParser(resolve_entities=False, no_network=True))
if root.tag != 'FEDREG' or published(root.findtext('DATE', default=''))[0].date().isoformat() != doc['day']:
raise ValueError('Federal Register XML 日期或结构不符')
numbers = set()
for node in root.iter('FRDOC'):
match = re.search(r'FR Doc\.\s+([^\s\]]+)', ''.join(node.itertext()))
if not match:
raise ValueError('Federal Register XML 文档编号无法解析')
numbers.add(match[1])
if len(numbers) != doc['count']:
raise ValueError('Federal Register XML 文档数量与 API 不符')
state = self.cursor[lane]
state['pending'] = [{'url': f'https://www.federalregister.gov/api/v1/documents/{number}.json', 'kind': 'register'} for number in sorted(numbers)]
state.update(page_finished=True, next=None, day_complete=True)
self.run.stats['discovered'] = self.run.stats.get('discovered', 0) + len(numbers)
for result in self.advance(lane):
yield result
return
if doc['kind'] == 'meeting':
data = response.json()['committeeMeeting']
at, precision = published(data['updateDate'])
if not selection(self.name, data['title'], json.dumps(data.get('relatedItems', {}))):
self.run.stats['excluded'] = self.run.stats.get('excluded', 0) + 1
for result in self.complete(lane):
yield result
return
parsed = {'title': data['title'], 'content_html': '<pre>' + escape(json.dumps(data, ensure_ascii=False, indent=2)) + '</pre>', 'published_at': at, 'url': response.url, 'external_id': identity(response.url), 'raw_response_id': response.meta['raw_response_id'], 'retry_document': doc,
'extra': {'content_scope': 'article', 'published_at_precision': precision, 'published_at_basis': 'official_update', 'published_date': at.date().isoformat(), 'official_meeting': data, 'rule_version': RULE_VERSION, 'attachments': [{'url': official_url(self.name, d['url']), 'title': d.get('name') or d.get('documentType', ''), 'status': 'pending'} for d in {d['url']: d for d in data.get('meetingDocuments', []) + data.get('witnessDocuments', []) if d.get('format') == 'PDF'}.values()]}}
for result in self.attach_or_finish(parsed, lane):
yield result
return
if doc['kind'] == 'bill':
data = response.json()['bill']
base = response.url.split('?')[0]
state = self.cursor[lane]
previous = self.cursor.setdefault('bill_retries', {}).get(base)
version = data.get('updateDateIncludingText') or data.get('updateDate')
if previous and previous.get('version') != version:
self.cursor['bill_retries'].pop(base)
if previous and previous.get('version') == version and (previous['attempts'] >= 3 or previous['next_at'] > self.run.started_at.timestamp()):
for result in self.complete(lane):
yield result
return
reasons = selection(self.name, data['title'], json.dumps(data.get('policyArea', {})))
state['bill'] = {'url': base, 'document_url': doc['url'], 'title': data['title'], 'reasons': reasons, 'bodies': 0, 'version': version, 'retry': bool(doc.get('bill_retry') or doc.get('attachment_retry'))}
kinds = ([] if reasons else ['subjects', 'summaries']) + ['texts', 'actions', 'bill_finish']
state['pending'][0:1] = [{'url': base + '/' + ('text' if kind == 'texts' else kind) + '?format=json&limit=250', 'kind': kind, 'title': data['title'], 'bill': base} for kind in kinds]
for result in self.advance(lane):
yield result
return
if doc['kind'] in ('subjects', 'summaries'):
data = response.json()
key = 'subjects' if doc['kind'] == 'subjects' else 'summaries'
if key not in data:
raise ValueError('官方法案补充资料结构未识别')
state = self.cursor[lane]
state['bill']['reasons'] = state['bill']['reasons'] or selection(self.name, doc['title'], json.dumps(data[key]))
children = []
if next_url := data.get('pagination', {}).get('next'):
children.append({**doc, 'url': official_url(self.name, next_url)})
state['pending'][0:1] = children
for result in self.advance(lane):
yield result
return
if doc['kind'] in ('actions', 'texts'):
data = response.json()
children = []
if doc['kind'] == 'actions':
for action in data['actions']:
key = identity(doc['bill'] + json.dumps(action, sort_keys=True))
at, precision = published(action['actionDate'])
begin = datetime(2025, 1, 1, tzinfo=UTC) if self.cursor[lane]['bill'].get('retry') else (self.run.history_target if lane == 'history' else self.run.cutoff)
if at < begin:
continue
item = self.item(response, external_id=key, url=congress_bill_url(doc['bill']), title=doc['title'], summary='', content_html=f"<p>{escape(action['text'])}</p>", published_at=at,
extra={'content_scope': 'official_action', 'published_at_precision': precision, 'published_date': at.date().isoformat(), 'bill': doc['bill'], 'official_action': action, 'rule_version': RULE_VERSION})
yield item
else:
for version in data['textVersions']:
if not version.get('date'):
self.cursor[lane]['bill']['missing_material'] = True
continue
formats = version.get('formats', [])
chosen = next((f for f in formats if f['type'] == 'Formatted Text'), None) or next((f for f in formats if f['type'] == 'Formatted XML'), None) or next((f for f in formats if f['type'] == 'PDF'), None)
if not chosen:
self.cursor[lane]['bill']['missing_material'] = True
if chosen:
children.append({'url': chosen['url'], 'kind': 'text', 'title': doc['title'] + ' — ' + version['type'], 'at': version['date'], 'bill': doc['bill']})
next_url = data.get('pagination', {}).get('next')
if next_url:
children.append({**doc, 'url': official_url(self.name, next_url)})
self.cursor[lane]['pending'][0:1] = children
for result in self.advance(lane):
yield result
return
if doc['kind'] == 'register':
data = response.json()
url = data.get('body_html_url') or data.get('raw_text_url')
if not url:
raise ValueError('规则文档缺少正文地址')
self.cursor[lane]['pending'][0] = {'url': official_url(self.name, url), 'kind': 'text', 'title': data['title'], 'at': data['publication_date'], 'canonical': data['html_url'], 'document_number': data['document_number'], 'effective_on': data.get('effective_on'), 'pdf': data.get('pdf_url')}
for result in self.advance(lane):
yield result
return
if doc['kind'] == 'doj':
data = response.json()
records = data['results']
if data['metadata']['responseInfo']['status'] != 200 or len(records) != 1:
raise ValueError('DOJ API 正文结构未识别')
record = records[0]
if str(uuid.UUID(record['uuid'])) != doc['url'].rsplit('/', 1)[1].removesuffix('.json'):
raise ValueError('DOJ API 正文 UUID 不符')
canonical = official_url(self.name, record['url'].replace('https://justice.gov/', 'https://www.justice.gov/', 1))
title = unescape(record['title']).strip()
if not title:
raise ValueError('DOJ 正文缺少标题')
# The API release date is a calendar date, not a release instant.
date = datetime.fromtimestamp(int(record['date']), UTC).date().isoformat()
attachment_html = record.get('attachment') or ''
api_attachments = []
if isinstance(attachment_html, list):
for attachment in attachment_html:
file_id = attachment['file']['id']
if not str(file_id).isdigit():
raise ValueError('DOJ API 附件编号无效')
api_attachments.append({'url': f'https://www.justice.gov/media/{file_id}/dl', 'title': attachment.get('description') or 'Official attachment', 'status': 'pending'})
attachment_html = ''
elif not isinstance(attachment_html, str):
raise ValueError('DOJ API 附件结构未识别')
html = f'<h1>{escape(title)}</h1><time datetime="{date}"></time><article><div class="field--name-body">{record["body"]}{attachment_html}</div></article>'
validate_body(record['body'])
parsed = article(self.name, html, canonical)
known = {a['url'] for a in parsed['extra']['attachments']}
parsed['extra']['attachments'].extend(a for a in api_attachments if a['url'] not in known)
changed = etree.HTML(record.get('changed') or '')
if changed is not None:
times = changed.xpath('//time/@datetime')
if times:
parsed['source_updated_at'] = published(times[0])[0]
parsed['extra']['official_uuid'] = record['uuid']
doc = {**doc, 'canonical': canonical}
elif doc['kind'] == 'text':
at, precision = published(doc['at'])
if response.body.startswith(b'%PDF'):
content = '<pre>' + escape(pdf_text(response.body)) + '</pre>'
else:
content = response.text
validate_body(content)
if '<' not in content:
content = '<pre>' + escape(content) + '</pre>'
parsed = {'title': doc['title'], 'content_html': content, 'published_at': at, 'extra': {'content_scope': 'article', 'language': 'en', 'published_at_precision': precision, 'published_date': at.date().isoformat(), 'rule_version': RULE_VERSION, 'official_document': doc, 'attachments': []}}
if doc.get('pdf'):
parsed['extra']['attachments'].append({'url': official_url(self.name, doc['pdf']), 'title': 'Official PDF', 'status': 'pending'})
else:
parsed = article(self.name, response.text, response.url, release_date=doc.get('release_date'))
if doc.get('release_date'):
parsed['extra'].update(published_at_basis='official_calendar_release', published_at_source=doc['release_date_source'])
if doc.get('bill'):
context = self.cursor[lane]['bill']
context['bodies'] += 1
if not context['reasons']:
context['reasons'] = selection(self.name, context['title'], html_to_text(parsed['content_html']))
if context['reasons']:
# A later version can establish relevance for earlier versions.
self.cursor[lane]['pending'][1:1] = context.pop('unmatched_texts', [])
else:
context.setdefault('unmatched_texts', []).append(copy.deepcopy(doc))
parsed['extra']['selection_reasons'] = context['reasons']
begin = self.run.history_target if lane == 'history' else self.run.cutoff
if doc.get('attachment_retry') or (doc.get('bill') and self.cursor[lane]['bill'].get('retry')):
begin = datetime(2025, 1, 1, tzinfo=UTC)
outside_range = parsed['published_at'].date() < begin.date() if parsed['extra'].get('published_at_precision') == 'date' else parsed['published_at'] < begin
if outside_range:
self.run.stats['outside_range'] = self.run.stats.get('outside_range', 0) + 1
for result in self.complete(lane):
yield result
return
if lane == 'history':
self.run.history_position = min(self.run.history_position or self.run.started_at, parsed['published_at'])
parsed['url'] = doc.get('canonical') or response.url
parsed['external_id'] = identity(parsed['url'])
if self.name == 'fed':
# Preserve pre-existing RSS GUID identities during full-text enrichment.
async with SessionLocal() as session:
existing = await session.scalar(select(NewsItem.external_id).where(NewsItem.source_code == 'fed', NewsItem.url == parsed['url']).limit(1))
if existing:
parsed['external_id'] = existing
parsed['raw_response_id'] = response.meta['raw_response_id']
parsed['retry_document'] = {'url': doc['bill'], 'kind': 'bill'} if doc.get('bill') else doc
for result in self.attach_or_finish(parsed, lane):
yield result
def finish_bill(self, lane):
context = self.cursor[lane].pop('bill')
retries = self.cursor.setdefault('bill_retries', {})
if not context['bodies'] or context.get('missing_material'):
previous = retries.get(context['url'], {})
retries[context['url']] = {'document': {'url': context['url'], 'kind': 'bill'}, 'version': context['version'], 'attempts': previous.get('attempts', 0) + 1, 'next_at': (self.run.started_at + timedelta(hours=1)).timestamp()}
else:
retries.pop(context['url'], None)
if not context['reasons']:
self.run.stats['excluded'] = self.run.stats.get('excluded', 0) + 1
self.run.stats['unresolved_bills'] = len(retries)
self.cursor[lane]['pending'].pop(0)
if lane == 'realtime':
self.cursor.setdefault('checked', {})[context['document_url']] = self.run.started_at.timestamp()
def attach_or_finish(self, parsed, lane):
pending = next((a for a in parsed['extra']['attachments'] if a['status'] == 'pending'), None)
if pending:
request = self.request_for(pending['url'], self.parse_attachment, lane, parsed=parsed)
request.meta['handle_httpstatus_list'] = [404, 410]
yield request
return
text = html_to_text(parsed['content_html'])
reasons = selection(self.name, parsed['title'], text) or parsed['extra'].get('selection_reasons', [])
incomplete = any(a['status'] != 'complete' for a in parsed['extra']['attachments'])
retry_doc = parsed.pop('retry_document', None)
retries = self.cursor.setdefault('attachment_retries', {})
if incomplete and retry_doc:
previous = retries.get(parsed['url'], {})
retries[parsed['url']] = {'document': retry_doc, 'attempts': previous.get('attempts', 0) + 1, 'next_at': (self.run.started_at + timedelta(hours=1)).timestamp()}
elif not incomplete:
retries.pop(parsed['url'], None)
if reasons:
parsed['extra']['selection_reasons'] = reasons
parsed['extra']['content_scope'] = 'partial' if incomplete else 'article'
self.run.stats['partial'] = self.run.stats.get('partial', 0) + int(incomplete)
raw_id = parsed.pop('raw_response_id')
item = self.item(Response(parsed['url'], request=Request(parsed['url'], meta={'raw_response_id': raw_id})), summary='', **parsed)
yield item
else:
self.run.stats['excluded'] = self.run.stats.get('excluded', 0) + 1
if incomplete:
self.run.stats['unclassified_attachment_gaps'] = self.run.stats.get('unclassified_attachment_gaps', 0) + 1
yield from self.complete(lane)
def parse_attachment(self, response):
parsed = response.meta['parsed']
attachment = next(a for a in parsed['extra']['attachments'] if a['url'] == response.url or a['status'] == 'pending')
attachment['raw_response_id'] = response.meta['raw_response_id']
try:
if response.status != 200:
raise ValueError(f'HTTP {response.status}')
if response.headers.get('Content-Type', b'').lower().startswith(b'image/') and response.body.startswith((b'\x89PNG\r\n\x1a\n', b'\xff\xd8\xff', b'GIF87a', b'GIF89a')):
raise ValueError('官方图片附件尚未提取文字,请核对原文')
text = pdf_text(response.body)
attachment['status'] = 'complete'
parsed['content_html'] += f"<section><h2>{escape(attachment['title'])}</h2><pre>{escape(text)}</pre></section>"
except (ValueError, OSError) as exc:
attachment.update(status='unavailable', error=str(exc))
self.logger.warning('附件缺口:%s', response.url)
yield from self.attach_or_finish(parsed, response.meta['lane'])
def complete(self, lane):
doc = self.cursor[lane]['pending'].pop(0)
if lane == 'realtime':
self.cursor.setdefault('checked', {})[doc['url']] = self.run.started_at.timestamp()
return self.advance(lane)
class SecSpider(USOfficialSpider):
name = 'sec'
class CftcSpider(USOfficialSpider):
name = 'cftc'
class TreasurySpider(USOfficialSpider):
name = 'treasury'
class OfacSpider(USOfficialSpider):
name = 'ofac'
class FincenSpider(USOfficialSpider):
name = 'fincen'
class WhitehouseSpider(USOfficialSpider):
name = 'whitehouse'
class CongressSpider(USOfficialSpider):
name = 'congress'
class FederalRegisterSpider(USOfficialSpider):
name = 'federal_register'
class OccSpider(USOfficialSpider):
name = 'occ'
class DojSpider(USOfficialSpider):
custom_settings = {**USOfficialSpider.custom_settings, 'DOWNLOAD_DELAY': 1.0}
name = 'doj'