mirror of
https://github.com/donlon/cloudflare-error-page.git
synced 2025-12-19 14:59:28 +00:00
75 lines
2.0 KiB
Python
75 lines
2.0 KiB
Python
import os
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import re
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import sys
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from flask import (
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Flask,
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json,
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request,
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abort,
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send_from_directory
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)
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examples_dir = os.path.dirname(os.path.abspath(__file__))
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sys.path.append(os.path.dirname(examples_dir))
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from cloudflare_error_page import get_resources_folder, render as render_cf_error_page
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app = Flask(__name__)
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# You can use resources from Cloudflare CDN. But in case of changing, you can set use_cdn = False to use bundled resources.
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use_cdn = True
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if use_cdn:
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res_folder = get_resources_folder()
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# This handler is used to provide stylesheet and icon resources for the error page. If you pass use_cdn=True to render_cf_error_page
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# or if your site is under proxy of Cloudflare (the cdn-cgi folder is already provided by Cloudflare), this handler can be removed.
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@app.route("/cdn-cgi/<path:path>")
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def cdn_cgi(path):
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return send_from_directory(res_folder, path)
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param_cache: dict[str, dict] = {}
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def get_page_params(name: str) -> dict:
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name = re.sub(r'[/\\]', '', name)
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params = param_cache.get(name)
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if params is not None:
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return params
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try:
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with open(os.path.join(examples_dir, f'{name}.json')) as f:
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params = json.load(f)
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param_cache[name] = params
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return params
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except Exception as _:
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return None
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@app.route("/", defaults={'name': 'default'})
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@app.route("/<name>")
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def index(name: str):
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params = get_page_params(name)
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if params is None:
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abort(404)
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# Get real Ray ID from Cloudflare header
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ray_id = request.headers.get('Cf-Ray')
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# Get real client ip from Cloudflare header or request.remote_addr
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client_ip = request.headers.get('X-Forwarded-For')
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if not client_ip:
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client_ip = request.remote_addr
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params = {
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**params,
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"ray_id": ray_id,
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"client_ip": client_ip,
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}
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# Render the error page
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return render_cf_error_page(params, use_cdn=use_cdn), 500
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if __name__ == "__main__":
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app.run(debug=True)
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