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Merge pull request #232 from openbikesensor/fix-traversal

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do not serve files from outside the frontend dir.
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gluap 2022-04-12 23:19:59 +02:00 committed by GitHub
parent f229ab4112 c61157aca3
commit 96d157b226
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1 changed files with 4 additions and 1 deletions
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5
api/obs/api/routes/frontend.py
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@ -1,4 +1,4 @@
from os.path import join, exists, isfile
from os.path import join, exists, isfile, abspath
import sanic.response as response
from sanic.exceptions import NotFound
@ -50,6 +50,9 @@ if INDEX_HTML and exists(INDEX_HTML):
raise NotFound()
file = join(app.config.FRONTEND_DIR, path)
if not abspath(file).startswith(abspath(app.config.FRONTEND_DIR)):
raise NotFound()
if not exists(file) or not path or not isfile(file):
return response.html(
index_file_contents.replace("__BASE_HREF__", req.ctx.frontend_url + "/")