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import requests
from collections import Counter
from .workers import SandcrawlerWorker
from .misc import gen_file_metadata
from .ia import WaybackClient, WaybackError
class GrobidClient(object):
def __init__(self, host_url="http://grobid.qa.fatcat.wiki", **kwargs):
self.host_url = host_url
self.consolidate_mode = int(kwargs.get('consolidate_mode', 1))
def process_fulltext(self, blob, consolidate_mode=None):
"""
Returns dict with keys:
- status_code
- status (slug)
- error_msg (if status == 'error')
- tei_xml (if status is 200)
TODO: persist connection for performance?
"""
assert blob
if consolidate_mode == None:
consolidate_mode = self.consolidate_mode
grobid_response = requests.post(
self.host_url + "/api/processFulltextDocument",
files={
'input': blob,
'consolidate_mode': self.consolidate_mode,
}
)
info = dict(
status_code=grobid_response.status_code,
)
if grobid_response.status_code == 200:
info['status'] = 'success'
info['tei_xml'] = grobid_response.text
else:
# response.text is .content decoded as utf-8
info['status'] = 'error'
info['error_msg'] = grobid_response.text[:10000]
return info
class GrobidWorker(SandcrawlerWorker):
def __init__(self, grobid_client, wayback_client=None, sink=None, **kwargs):
super().__init__()
self.grobid_client = grobid_client
self.wayback_client = wayback_client
self.sink = sink
self.consolidate_mode = 1
def process(self, record):
if record.get('warc_path') and record.get('warc_offset'):
# it's a full CDX dict. fetch using WaybackClient
if not self.wayback_client:
raise Exception("wayback client not configured for this GrobidWorker")
try:
blob = self.wayback_client.fetch_warc_content(record['warc_path'],
record['warc_offset'], record['warc_csize'])
except WaybackError as we:
return dict(status="error-wayback", error_msg=str(we), source=record)
elif record.get('url') and record.get('datetime'):
# it's a partial CDX dict or something? fetch using WaybackClient
if not self.wayback_client:
raise Exception("wayback client not configured for this GrobidWorker")
try:
blob = self.wayback_client.fetch_url_datetime(record['url'], record['datetime'])
except WaybackError as we:
return dict(status="error-wayback", error_msg=str(we), source=record)
elif record.get('item') and record.get('path'):
# it's petabox link; fetch via HTTP
resp = requests.get("https://archive.org/serve/{}/{}".format(
record['item'], record['path']))
try:
resp.raise_for_status()
except Exception as e:
return dict(status="error-petabox", error_msg=str(e), source=record)
blob = resp.body
else:
raise ValueError("not a CDX (wayback) or petabox (archive.org) dict; not sure how to proceed")
assert blob
result = self.grobid_client.process_fulltext(blob, consolidate_mode=self.consolidate_mode)
result['file_meta'] = gen_file_metadata(blob)
result['source'] = record
result['key'] = result['file_meta']['sha1hex']
return result
class GrobidBlobWorker(SandcrawlerWorker):
"""
This is sort of like GrobidWorker, except it receives blobs directly,
instead of fetching blobs from some remote store.
"""
def __init__(self, grobid_client, sink=None, **kwargs):
super().__init__()
self.grobid_client = grobid_client
self.sink = sink
self.consolidate_mode = 1
def process(self, blob):
assert blob
result = self.grobid_client.process_fulltext(blob, consolidate_mode=self.consolidate_mode)
result['file_meta'] = gen_file_metadata(blob)
result['key'] = result['file_meta']['sha1hex']
return result
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