96 lines
2.4 KiB
Python
96 lines
2.4 KiB
Python
# -*- coding: utf-8 -*-
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"""
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个人博客 - Flask 应用入口
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"""
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import os
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import re
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from datetime import datetime
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from flask import Flask, render_template, abort
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import markdown
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app = Flask(__name__)
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BASE_DIR = os.path.dirname(os.path.abspath(__file__))
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POSTS_DIR = os.path.join(BASE_DIR, 'posts')
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def parse_front_matter(text):
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"""解析 Markdown 文件的 YAML front matter（简单实现）"""
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meta = {}
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body = text
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match = re.match(r'^---\s*\n(.*?)\n---\s*\n(.*)$', text, re.DOTALL)
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if match:
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raw_meta, body = match.group(1), match.group(2)
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for line in raw_meta.strip().splitlines():
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if ':' in line:
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key, value = line.split(':', 1)
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meta[key.strip()] = value.strip()
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return meta, body
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def load_posts():
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"""加载所有文章，返回按日期倒序的列表"""
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posts = []
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if not os.path.isdir(POSTS_DIR):
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return posts
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for filename in os.listdir(POSTS_DIR):
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if not filename.endswith('.md'):
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continue
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slug = filename[:-3]
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path = os.path.join(POSTS_DIR, filename)
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with open(path, 'r', encoding='utf-8') as f:
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raw = f.read()
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meta, body = parse_front_matter(raw)
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posts.append({
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'slug': slug,
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'title': meta.get('title', slug),
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'date': meta.get('date', ''),
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'summary': meta.get('summary', ''),
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'content': body,
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})
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posts.sort(key=lambda p: p['date'], reverse=True)
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return posts
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def get_post(slug):
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"""根据 slug 获取单篇文章"""
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for post in load_posts():
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if post['slug'] == slug:
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return post
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return None
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@app.route('/')
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def index():
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"""首页：文章列表"""
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posts = load_posts()
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return render_template('index.html', posts=posts)
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@app.route('/post/<slug>')
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def post_detail(slug):
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"""文章详情页"""
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post = get_post(slug)
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if not post:
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abort(404)
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html_content = markdown.markdown(
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post['content'],
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extensions=['fenced_code', 'codehilite', 'tables']
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)
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return render_template('post.html', post=post, content=html_content)
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@app.route('/about')
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def about():
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"""关于页面"""
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return render_template('about.html')
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@app.errorhandler(404)
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def not_found(e):
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return render_template('404.html'), 404
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if __name__ == '__main__':
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app.run(debug=True, host='127.0.0.1', port=5000)
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