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from dataclasses import dataclass |
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from io import BufferedReader |
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from pathlib import Path |
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from typing import List |
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import lxml.etree |
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from datetime import datetime |
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class MediaWikiRevision: |
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id: int |
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parentid: int |
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timestamp: str |
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contributor: str |
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comment: str |
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model: str |
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format: str |
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text: str |
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def __init__( |
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self, id, parentid, timestamp, contributor, comment, model, format, text |
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): |
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self.id = id |
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self.parentid = parentid |
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self.timestamp = datetime.fromisoformat(timestamp.replace("Z", "+00:00")) |
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self.contributor = contributor |
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self.comment = comment |
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self.model = model |
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self.format = format |
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self.text = text |
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@dataclass |
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class MediaWikiPage: |
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title: str |
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id: int |
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revisions: List[MediaWikiRevision] |
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text: str |
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class MediaWikiDump: |
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sitename: str |
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baseurl: str |
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engine: str |
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pages: List[MediaWikiPage] |
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def __init__(self, source: Path | str | BufferedReader) -> None: |
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if not hasattr(source, "read"): |
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source = open(source, "rb") |
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root = lxml.etree.parse(source).getroot() |
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ns = {"mw": "http://www.mediawiki.org/xml/export-0.11/"} |
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siteinfo = root.find("./mw:siteinfo", ns) |
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self.sitename = siteinfo.find("./mw:sitename", ns).text |
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self.baseurl = siteinfo.find("./mw:base", ns).text |
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self.engine = siteinfo.find("./mw:generator", ns).text |
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self.pages = [] |
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ids = [] |
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for page in root.findall("./mw:page", ns): |
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title = page.find("./mw:title", ns).text |
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id = int(page.find("./mw:id", ns).text) |
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if id in ids: |
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continue |
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revisions: List[MediaWikiRevision] = [] |
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for revision in page.findall("./mw:revision", ns): |
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revid = int(revision.find("./mw:id", ns).text) |
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parentid = int(revision.find("./mw:parentid", ns).text) |
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timestamp = revision.find("./mw:timestamp", ns).text |
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contributor = revision.find("./mw:contributor", ns).text |
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comment = revision.find("./mw:comment", ns) |
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comment = comment.text if comment is not None else "" |
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model = revision.find("./mw:model", ns).text |
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format = revision.find("./mw:format", ns).text |
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text = revision.find("./mw:text", ns).text |
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text = text if text is not None else "" |
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revisions.append( |
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MediaWikiRevision( |
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revid, |
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parentid, |
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timestamp, |
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contributor, |
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comment, |
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model, |
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format, |
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text, |
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) |
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) |
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revisions.sort(key=lambda r: r.timestamp) |
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revisions.reverse() |
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text = revisions[0].text |
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ids.append(id) |
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self.pages.append(MediaWikiPage(title, id, revisions, text)) |
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pass |
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