mirror of
https://github.com/kuhyx/testsAndMisc.git
synced 2026-07-04 13:03:13 +02:00
Krzysztof kuhy Rudnicki
e3f9e6dc0b
- Add +x to Python scripts with shebangs (3 files) - Remove -x from non-script files like .cpp, .txt, makefile (23 files) - Move shebang to first line in C/imageViewer/lint.sh
90 lines
2.5 KiB
Python
Executable File
90 lines
2.5 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Extract hosts from href attributes in an HTML file and write them as *host* per line.
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Usage:
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python main.py INPUT_HTML [OUTPUT_TXT]
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If OUTPUT_TXT is not provided, the script writes to <INPUT_BASENAME>_links.txt
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alongside the input file.
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"""
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from __future__ import annotations
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import argparse
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from html.parser import HTMLParser
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import os
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from urllib.parse import urlparse
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class _HrefParser(HTMLParser):
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def __init__(self) -> None:
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super().__init__()
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self.hrefs: list[str] = []
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def handle_starttag(self, tag: str, attrs): # type: ignore[override]
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# Collect any href attribute on any tag
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for k, v in attrs:
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if k.lower() == "href" and v is not None:
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self.hrefs.append(v)
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def extract_hosts_from_html(html_text: str) -> list[str]:
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"""Parse HTML text, extract href values, and return a list of hostnames.
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Rules:
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- Only http/https URLs are considered.
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- Output is the network location (host[:port]) without scheme or path.
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- Duplicates are removed, preserving first-seen order.
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"""
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parser = _HrefParser()
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parser.feed(html_text)
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seen: set[str] = set()
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hosts: list[str] = []
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for href in parser.hrefs:
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parsed = urlparse(href)
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if parsed.scheme in {"http", "https"} and parsed.netloc:
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host = parsed.netloc
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if host not in seen:
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seen.add(host)
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hosts.append(host)
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return hosts
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def main() -> int:
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ap = argparse.ArgumentParser(
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description="Extract hosts from hrefs in an HTML file."
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)
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ap.add_argument("input_html", help="Path to input HTML file")
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ap.add_argument(
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"output_txt",
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nargs="?",
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help="Path to output text file (defaults to <input_basename>_links.txt in the same directory)",
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)
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args = ap.parse_args()
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input_path = args.input_html
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if not os.path.isfile(input_path):
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raise SystemExit(f"Input file not found: {input_path}")
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out_path = args.output_txt
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if not out_path:
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base = os.path.splitext(os.path.basename(input_path))[0]
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out_path = os.path.join(os.path.dirname(input_path), f"{base}_links.txt")
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with open(input_path, encoding="utf-8", errors="ignore") as f:
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html_text = f.read()
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hosts = extract_hosts_from_html(html_text)
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with open(out_path, "w", encoding="utf-8") as f:
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for host in hosts:
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f.write(f"*{host}*\n")
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print(f"Wrote {len(hosts)} host(s) to {out_path}")
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return 0
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if __name__ == "__main__":
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raise SystemExit(main())
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