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Inboxintel/frontend/nginx.conf
cesnimda c9f1437860
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fix(proxy): honor upstream X-Forwarded-Proto so OAuth redirect is https behind traefik
The SPA nginx overwrote the reverse proxy's X-Forwarded-Proto with $scheme (http on the
traefik->frontend hop), so the API built http:// OAuth redirects that Google rejects. Map
the incoming proto through (fallback to $scheme for direct access). Needed for login via
https://inboxintel.cesnimda.uk behind traefik.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-10 22:03:23 +02:00

54 lines
2.2 KiB
Nginx Configuration File

# Honor a reverse proxy's X-Forwarded-Proto (e.g. traefik terminating TLS) so the API sees
# https and builds https OAuth redirects; fall back to the connection scheme for direct access.
map $http_x_forwarded_proto $fwd_proto {
default $scheme;
https https;
http http;
}
server {
listen 80;
server_name _;
root /usr/share/nginx/html;
index index.html;
# AUDIT M-2: security headers on the SPA. script-src 'self' works because the theme
# bootstrap lives in /theme-init.js (no inline scripts); style-src needs 'unsafe-inline'
# for React/Chart.js/grid-layout inline style attributes (low risk with script-src locked).
add_header Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self'; connect-src 'self'; object-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'" always;
add_header X-Content-Type-Options "nosniff" always;
add_header X-Frame-Options "DENY" always;
add_header Referrer-Policy "no-referrer" always;
# Compress the SPA bundle (AUDIT perf note: ~680 KB JS).
gzip on;
gzip_types text/css application/javascript application/json image/svg+xml;
gzip_min_length 1024;
# SPA fallback.
location / {
try_files $uri $uri/ /index.html;
}
# Proxy API + auth calls to the backend container.
location /api/ {
proxy_pass http://api:8080;
proxy_set_header Host $http_host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $fwd_proto;
proxy_set_header X-Forwarded-Host $http_host;
proxy_set_header Cookie $http_cookie;
}
# Google OAuth2 callback + sign-out land here (not under /api) and must
# reach the backend so the cookie session is established same-origin.
location ~ ^/(signin-google|signout-google) {
proxy_pass http://api:8080;
proxy_set_header Host $http_host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $fwd_proto;
proxy_set_header X-Forwarded-Host $http_host;
proxy_set_header Cookie $http_cookie;
}
}