mirror of
https://github.com/github/codeql.git
synced 2025-12-20 10:46:30 +01:00
24 lines
707 B
Python
24 lines
707 B
Python
from flask import Flask, request, redirect
|
|
import re
|
|
|
|
app = Flask(__name__)
|
|
|
|
UNSAFE_REGEX = re.compile("(www|beta).example.com/")
|
|
SAFE_REGEX = re.compile(r"(www|beta)\.example\.com/")
|
|
|
|
@app.route('/some/path/bad')
|
|
def unsafe(request):
|
|
target = request.args.get('target', '')
|
|
if UNSAFE_REGEX.match(target):
|
|
return redirect(target)
|
|
|
|
@app.route('/some/path/good')
|
|
def safe(request):
|
|
target = request.args.get('target', '')
|
|
if SAFE_REGEX.match(target):
|
|
return redirect(target)
|
|
|
|
# FP reported in https://github.com/github/codeql/issues/3712
|
|
# This does not define a regex (but could be used by other code to do so)
|
|
escaped = re.escape("https://www.humblebundle.com/home/library")
|