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app.py
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app.py
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import os
from urllib.parse import urlparse
from flask import Flask, request, make_response, send_file, render_template_string
app = Flask(__name__)
DEBUG = True
BASE_DIR = './testing-pages/'
ORIGIN_NEED_HEADER = ["dummy.local"]
ENDPOINT_NEED_HEADER = ["./testing-pages/iframes/about.html"]
# -----------------------------> MANUAL HEADERS
# ======================== Content-Security-Policy
# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy
# Content-Security-Policy: <policy-directive>; <policy-directive>
# === Directives:
# default-src, script-src, script-src-elem, script-src-attr, style-src, style-src-elem, style-src-attr, img-src, connect-src, font-src, object-src, media-src, frame-src, sandbox, report-uri, child-src, form-action, frame-ancestors, base-uri, report-to, worker-src, manifest-src, prefetch-src, navigate-to, upgrade-insecure-requests,
# === Reporting directives
# Security-Policy-Report-only, report-uri, report-to
# === Experimental
# require-trusted-types-for, trusted-types
# === Deprecated
# block-all-mixed-content, plugin-types, referrer
csp_value = -1
# Examples from:
# https://content-security-policy.com/examples/
csp_list = [
"default-src 'none'; script-src https://dummy.local/; child-src 'self' *;",
"default-src 'self'; img-src 'self' cdn.example.com;",
#"script-src js-cdn.example.com 'nonce-rAnd0m' 'unsafe-inline';",
"script-src 'unsafe-inline';",
"style-src css-cdn.example.com 'nonce-rAnd0m';",
"default-src 'self'; script-src 'unsafe-inline'; frame-src dummy.local",
"",
]
# ======================== Permissions-Policy
# https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Permissions-Policy
# Permissions-Policy: <directive> <allowlist>
# === Directives:
# 'accelerometer', 'ambient-light-sensor', 'autoplay', 'battery', 'camera', 'display-capture', 'document-domain', 'encrypted-media', 'execution-while-not-rendered', 'execution-while-out-of-viewport', 'fullscreen', 'gamepad', 'geolocation', 'gyroscope', 'hid', 'identity-credentials-get', 'idle-detection', 'local-fonts', 'magnetometer', 'microphone', 'midi', 'otp-credentials', 'payment', 'picture-in-picture', 'publickey-credentials-create', 'publickey-credentials-get', 'screen-wake-lock', 'serial', 'speaker-selection', 'storage-access', 'usb', 'web-share', 'window-management', 'xr-spatial-tracking'
pp_value = -1
pp_list = [
"geolocation=()",
"geolocation=*",
"geolocation=('https://dummy.local')",
"picture-in-picture=(), geolocation=(self https://example.com), camera=*",
]
@app.route('/', defaults={'req_path': ''})
@app.route('/<path:req_path>', methods=['GET', 'POST'])
def dir(req_path):
global BASE_DIR
abs_path = os.path.join(BASE_DIR, req_path)
# Exist?
if not os.path.exists(abs_path):
return ""
# ============ HTML file
if os.path.isfile(abs_path):
response = make_response(send_file(abs_path))
if DEBUG:
print(f"""
----------------
Domain: {request.url_root}
Endpoint: {abs_path}
Cookie: {request.cookies}
----------------
""")
# Need header
csp = ""
pp = ""
report_to = ""
pp_report = ""
# Blacklist for header some file "example.html" not in abs_path
if urlparse(request.url_root).netloc in ORIGIN_NEED_HEADER or abs_path in ENDPOINT_NEED_HEADER:
# ====================================== HEADERS
# === CSP HEADER
# Check if the file has a CSP associated
csp_file = abs_path[:-5] + ".csp" # delete .html
if os.path.exists(csp_file):
response.headers['Content-Security-Policy'] = open(csp_file, 'r').read().replace('\n', '')
csp = open(csp_file, 'r').read().replace('\n', '')
elif csp_value > -1:
response.headers['Content-Security-Policy'] = csp_list[csp_value]
csp = csp_list[csp_value]
# === PERMISSION POLICY HEADER
# Check if the file has a PP file associated
pp_file = abs_path[:-5] + ".pp" # delete .html
if os.path.exists(pp_file):
response.headers['Permissions-Policy'] = open(pp_file, 'r').read().replace('\n', '')
pp = open(pp_file, 'r').read().replace('\n', '')
elif pp_value > -1:
response.headers['Permissions-Policy'] = pp_list[pp_value]
pp = pp_list[pp_value]
# === Reporting
report_to = '{"group":"default","max_age":1800,"endpoints":[{"url":"https://prueba.report-uri.com/a/d/g"}],"include_subdomains":true}'
pp_report = "fullscreen=()"
# response.headers['Permissions-Policy'] = "fullscreen=*"
# response.headers['Report-To'] = report_to
# response.headers['Permissions-Policy-Report-Only'] = pp_report
#response.headers['Reporting-Endpoints'] = 'main-endpoint="https://webhook.site/7c05a5c7-9e36-478a-842b-cdcee58bc52a/main", default="https://webhook.site/7c05a5c7-9e36-478a-842b-cdcee58bc52a/default"'
# Add more headers
# POST+Lax test
#response.headers['Set-Cookie'] = "user=John; secure; HttpOnly; path=/; expires=Tue, 19 Jan 2038 03:14:07 GMT;"
# =======================================
print(f"""
# =============== {abs_path} ===============
Security Headers:
CSP: {csp}
Permission-Policy: {pp}
Report-to: {report_to}
Permissions-Policy-Report-Only: {pp_report}
# ======================================================================
""")
return response
# =========== List dirs
files = os.listdir(abs_path)
template = """
<ul>
{% for file in files %}
<li>
<a href="{{ (request.path + '/' if request.path != '/' else '') + file }}">
{{ (request.path + '/' if request.path != '/' else '') + file }}
</a>
</li>
{% endfor %}
</ul>
"""
return render_template_string(template, files=files)
if __name__ == "__main__":
# run
app.run(
host="127.0.0.1",
port="443",
ssl_context=('cert/localhost.crt', 'cert/localhost.key'),
debug=True)