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#!/usr/bin/env python3
"""
Transform an unpaywall dump (JSON) into ingest requests.
"""
import argparse
import json
import sys
import urlcanon
def canon(s):
parsed = urlcanon.parse_url(s)
return str(urlcanon.whatwg(parsed))
def transform_cnki(obj):
requests = []
assert obj["cnki_id"]
requests = []
requests.append(
{
"base_url": canon(obj["info_url"]),
"ingest_type": "pdf",
"link_source": "cnki_covid19",
"link_source_id": obj["cnki_id"],
"ingest_request_source": "scrape-covid19",
}
)
if "read_url" in obj:
requests.append(
{
"base_url": canon(obj["read_url"]),
"ingest_type": "pdf", # actually HTML
"link_source": "cnki_covid19",
"link_source_id": obj["cnki_id"],
"ingest_request_source": "scrape-covid19",
}
)
return requests
def transform_wanfang(obj):
assert obj["wanfang_id"]
return [
{
"base_url": canon(obj["url"]),
"ingest_type": "pdf",
"link_source": "wanfang_covid19",
"link_source_id": obj["wanfang_id"],
"ingest_request_source": "scrape-covid19",
}
]
def run(args):
for l in args.json_file:
if not l.strip():
continue
row = json.loads(l)
if "wanfang_id" in row:
requests = transform_wanfang(row) or []
elif "cnki_id" in row:
requests = transform_cnki(row) or []
else:
continue
for r in requests:
print("{}".format(json.dumps(r, sort_keys=True)))
def main():
parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument(
"json_file", help="COVID-19 metadata file to use", type=argparse.FileType("r")
)
subparsers = parser.add_subparsers()
args = parser.parse_args()
run(args)
if __name__ == "__main__":
main()
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