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Do not send extra headers for Upgrade connection

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During a WebSocket connection we currently also send several headers
which could cause issues with some reverse proxy, or with the CloudFlare
tunnel for example. This PR resolves these issues.

Fixes #3881
This commit is contained in:
BlackDex 2023-10-09 19:17:11 +02:00
parent 008a2cf298
commit f3a1385aee
No known key found for this signature in database
GPG key ID: 58C80A2AA6C765E1
1 changed files with 22 additions and 6 deletions
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28
src/util.rs
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@ -33,24 +33,41 @@ impl Fairing for AppHeaders {
}
async fn on_response<'r>(&self, req: &'r Request<'_>, res: &mut Response<'r>) {
let req_uri_path = req.uri().path();
let req_headers = req.headers();
// Check if this connection is an Upgrade/WebSocket connection and return early
// We do not want add any extra headers, this could cause issues with reverse proxies or CloudFlare
if req_uri_path.ends_with("notifications/hub") || req_uri_path.ends_with("notifications/anonymous-hub") {
match (req_headers.get_one("connection"), req_headers.get_one("upgrade")) {
(Some(c), Some(u))
if c.to_lowercase().contains("upgrade") && u.to_lowercase().contains("websocket") =>
{
// Remove headers which could cause websocket connection issues
res.remove_header("X-Frame-Options");
res.remove_header("X-Content-Type-Options");
return;
}
(_, _) => (),
}
}
res.set_raw_header("Permissions-Policy", "accelerometer=(), ambient-light-sensor=(), autoplay=(), battery=(), camera=(), display-capture=(), document-domain=(), encrypted-media=(), execution-while-not-rendered=(), execution-while-out-of-viewport=(), fullscreen=(), geolocation=(), gyroscope=(), keyboard-map=(), magnetometer=(), microphone=(), midi=(), payment=(), picture-in-picture=(), screen-wake-lock=(), sync-xhr=(), usb=(), web-share=(), xr-spatial-tracking=()");
res.set_raw_header("Referrer-Policy", "same-origin");
res.set_raw_header("X-Content-Type-Options", "nosniff");
// Obsolete in modern browsers, unsafe (XS-Leak), and largely replaced by CSP
res.set_raw_header("X-XSS-Protection", "0");
let req_uri_path = req.uri().path();
// Do not send the Content-Security-Policy (CSP) Header and X-Frame-Options for the *-connector.html files.
// This can cause issues when some MFA requests needs to open a popup or page within the clients like WebAuthn, or Duo.
// This is the same behaviour as upstream Bitwarden.
// This is the same behavior as upstream Bitwarden.
if !req_uri_path.ends_with("connector.html") {
// # Frame Ancestors:
// Chrome Web Store: https://chrome.google.com/webstore/detail/bitwarden-free-password-m/nngceckbapebfimnlniiiahkandclblb
// Edge Add-ons: https://microsoftedge.microsoft.com/addons/detail/bitwarden-free-password/jbkfoedolllekgbhcbcoahefnbanhhlh?hl=en-US
// Firefox Browser Add-ons: https://addons.mozilla.org/en-US/firefox/addon/bitwarden-password-manager/
// # img/child/frame src:
// Have I Been Pwned and Gravator to allow those calls to work.
// Have I Been Pwned to allow those calls to work.
// # Connect src:
// Leaked Passwords check: api.pwnedpasswords.com
// 2FA/MFA Site check: api.2fa.directory
@ -72,7 +89,6 @@ impl Fairing for AppHeaders {
{allowed_iframe_ancestors}; \
img-src 'self' data: \
https://haveibeenpwned.com \
https://www.gravatar.com \
{icon_service_csp}; \
connect-src 'self' \
https://api.pwnedpasswords.com \
@ -619,7 +635,7 @@ fn upcase_value(value: Value) -> Value {
}
}
// Inner function to handle some speciale case for the 'ssn' key.
// Inner function to handle a special case for the 'ssn' key.
// This key is part of the Identity Cipher (Social Security Number)
fn _process_key(key: &str) -> String {
match key.to_lowercase().as_ref() {