From 71fa7f67eab5943598697522622236bf1afd22b9 Mon Sep 17 00:00:00 2001
From: Pierre-Olivier Mercier <nemunaire@nemunai.re>
Date: Mon, 6 Sep 2021 12:03:13 +0200
Subject: [PATCH] configs: Add nginx config for OIDC

---
 configs/nginx/auth/oidc.conf     | 50 ++++++++++++++++++++++++++++++++
 configs/nginx/get-team/oidc.conf |  3 ++
 2 files changed, 53 insertions(+)
 create mode 100644 configs/nginx/auth/oidc.conf
 create mode 100644 configs/nginx/get-team/oidc.conf

diff --git a/configs/nginx/auth/oidc.conf b/configs/nginx/auth/oidc.conf
new file mode 100644
index 00000000..994812ab
--- /dev/null
+++ b/configs/nginx/auth/oidc.conf
@@ -0,0 +1,50 @@
+error_page 401 = @error401;
+
+location /challenge_access {
+    # forward the /validate request to Vouch Proxy
+    proxy_pass http://auth:9090;
+    # be sure to pass the original host header
+    proxy_set_header Host $http_host;
+
+    # Vouch Proxy only acts on the request headers
+    proxy_pass_request_body off;
+    proxy_set_header Content-Length "";
+
+    # optionally add X-Vouch-User as returned by Vouch Proxy along with the request
+    auth_request_set $auth_resp_x_vouch_user $upstream_http_x_vouch_user;
+
+    # these return values are used by the @error401 call
+    auth_request_set $auth_resp_jwt $upstream_http_x_vouch_jwt;
+    auth_request_set $auth_resp_err $upstream_http_x_vouch_err;
+    auth_request_set $auth_resp_failcount $upstream_http_x_vouch_failcount;
+}
+
+# If the user is not logged in, redirect them to Vouch's login URL
+location @error401 {
+    return 302 https://fic.srs.epita.fr/challenge_access/login?url=https://fic.srs.epita.fr$request_uri&vouch-failcount=$auth_resp_failcount&X-Vouch-Token=$auth_resp_jwt&error=$auth_resp_err;
+}
+
+location /auth {
+    proxy_pass http://auth:5556;
+}
+location /approval {
+    proxy_pass http://auth:5556;
+}
+location /token {
+    proxy_pass http://auth:5556;
+}
+location /keys {
+    proxy_pass http://auth:5556;
+}
+location /userinfo {
+    proxy_pass http://auth:5556;
+}
+location /static {
+    proxy_pass http://auth:5556;
+}
+location /theme {
+    proxy_pass http://auth:5556;
+}
+location /.well-known/openid-configuration {
+    proxy_pass http://auth:5556;
+}
diff --git a/configs/nginx/get-team/oidc.conf b/configs/nginx/get-team/oidc.conf
new file mode 100644
index 00000000..32709ab7
--- /dev/null
+++ b/configs/nginx/get-team/oidc.conf
@@ -0,0 +1,3 @@
+auth_request    /challenge_access/validate;
+
+auth_request_set $team "$upstream_http_x_vouch_user";