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| """Fetch a page's content from a NFS-mounted Common Crawl Hugging Face Bucket.""" |
|
|
| import argparse |
| import io |
| import json |
| from pathlib import Path |
| from urllib.parse import quote_plus |
|
|
| import requests |
| from warcio.archiveiterator import ArchiveIterator |
|
|
| SERVER = "http://index.commoncrawl.org/" |
| INDEX_NAME = "CC-MAIN-2026-17" |
| USER_AGENT = "cc-hf-jobs/1.0 (Buckets Example)" |
|
|
| def search_cc_index(url): |
| encoded_url = quote_plus(url) |
| index_url = f"{SERVER}{INDEX_NAME}-index?url={encoded_url}&output=json" |
| response = requests.get(index_url, headers={"user-agent": USER_AGENT}) |
| response.raise_for_status() |
| return [json.loads(line) for line in response.text.strip().split("\n")] |
|
|
| def fetch_page_from_bucket(records, bucket_root): |
| for record in records: |
| offset = int(record["offset"]) |
| length = int(record["length"]) |
| warc_path = bucket_root / record["filename"] |
|
|
| if not warc_path.exists(): |
| print(f"Not in bucket: {warc_path}") |
| continue |
|
|
| with warc_path.open("rb") as f: |
| f.seek(offset) |
| chunk = f.read(length) |
|
|
| |
| |
| for warc_record in ArchiveIterator(io.BytesIO(chunk)): |
| if warc_record.rec_type == "response": |
| return warc_record.content_stream().read() |
|
|
| print("No response record found") |
| return None |
|
|
| def main(): |
| parser = argparse.ArgumentParser(description=__doc__.splitlines()[0]) |
| parser.add_argument("url", help="URL to look up in the CC index (e.g. huggingface.co/blog)") |
| parser.add_argument("bucket_path", type=Path, help="Path to the mounted Common Crawl bucket") |
| args = parser.parse_args() |
|
|
| records = search_cc_index(args.url) |
| print(f"Found {len(records)} record(s) for {args.url}") |
|
|
| content = fetch_page_from_bucket(records, args.bucket_path) |
| if content is not None: |
| print(f"Fetched {len(content)} bytes") |
| print(content.decode("utf-8", errors="replace")) |
|
|
| if __name__ == "__main__": |
| main() |
|
|
