lanyuanxiaoyao
09904aefdc
从 BaseReader 抽象基类及所有 Reader 子类中移除 supported_extensions 属性，该属性在代码库中从未被实际调用，仅作为元数据存在。
90 lines
2.7 KiB
Python
90 lines
2.7 KiB
Python
"""HTML/URL 文件阅读器，支持多种解析方法。"""
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import os
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from typing import List, Optional, Tuple
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from scripts.readers.base import BaseReader
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from scripts.utils import is_url
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from scripts.utils import encoding_detection
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from . import cleaner
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from . import downloader
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from . import trafilatura
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from . import domscribe
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from . import markitdown
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from . import html2text
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PARSERS = [
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("trafilatura", lambda c, t: trafilatura.parse(c)),
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("domscribe", lambda c, t: domscribe.parse(c)),
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("MarkItDown", lambda c, t: markitdown.parse(c, t)),
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("html2text", lambda c, t: html2text.parse(c)),
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]
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class HtmlReader(BaseReader):
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"""HTML/URL 文件阅读器"""
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def supports(self, file_path: str) -> bool:
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return is_url(file_path) or file_path.lower().endswith(('.html', '.htm'))
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def download_and_parse(self, url: str) -> Tuple[Optional[str], List[str]]:
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"""下载 URL 并解析"""
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all_failures = []
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# 下载 HTML
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html_content, download_failures = downloader.download_html(url)
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all_failures.extend(download_failures)
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if html_content is None:
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return None, all_failures
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# 清理 HTML
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html_content = cleaner.clean_html_content(html_content)
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# 解析 HTML
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content, parse_failures = self._parse_html_content(html_content, None)
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all_failures.extend(parse_failures)
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return content, all_failures
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def _parse_html_content(self, html_content: str, temp_file_path: Optional[str]) -> Tuple[Optional[str], List[str]]:
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"""解析 HTML 内容"""
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failures = []
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content = None
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for parser_name, parser_func in PARSERS:
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content, error = parser_func(html_content, temp_file_path)
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if content is not None:
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return content, failures
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else:
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failures.append(f"- {parser_name}: {error}")
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return None, failures
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def parse(self, file_path: str) -> Tuple[Optional[str], List[str]]:
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all_failures = []
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# 判断输入类型
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if is_url(file_path):
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return self.download_and_parse(file_path)
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# 检查文件是否存在
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if not os.path.exists(file_path):
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return None, ["文件不存在"]
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# 读取本地 HTML 文件，使用编码检测
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html_content, error = encoding_detection.read_text_file(file_path)
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if error:
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return None, [f"- {error}"]
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# 清理 HTML
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html_content = cleaner.clean_html_content(html_content)
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# 解析 HTML
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content, parse_failures = self._parse_html_content(html_content, file_path)
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all_failures.extend(parse_failures)
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return content, all_failures
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