kallithea Files · MIT-Permissive-License.txt

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Andrew Shadura

middleware: use secure cookies over secure connections

HTTP cookie spec defines secure cookies, which are transmitted only over secure
connections (HTTPS). Using them helps protect against some attacks, but cookies
shouldn't be made secure when we don't have HTTPS configured. As it is now, it's
left at user's discretion, but probably it's a good idea to force secure cookies
when they can be used.

In the current implementation, cookies are issued to users before they actually
try to log in, on the first page load. So if that happens over HTTPS, it's
probably safe to assume secure cookies can be used, and to default to normal
"insecure" cookies if HTTPS isn't available.

It's not easy to sneak into Beaker's internals, and it doesn't support selective
secureness, so we use our own wrapper around Beaker's SessionMiddleware class to
give secure cookies over HTTPS connections. Beaker's built-in mechanism for
secure cookies is forced to add the flag when needed only.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.