Fork https://github.com/pusher/oauth2_proxy.git
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google_auth_proxy
A reverse proxy that provides authentication using Google OAuth2 to validate individual accounts, or a whole google apps domain.
Structure
_______ ___________________ __________
|Nginx| ----> |google_auth_proxy| ----> |upstream|
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[google oauth2 api]
Configuration
- visit to Google Api Console https://code.google.com/apis/console/
- under "API Access", choose "Create an OAuth 2.0 Client ID"
- Edit the application settings, and list the Redirect URI(s) where you will run your application. For example:
https://internalapp.yourcompany.com/oauth2/callback
Usage
Usage of ./google_auth_proxy:
-authenticated-emails-file="": authenticate against emails via file (one per line)
-client-id="": the Google OAuth Client ID: ie: "123456.apps.googleusercontent.com"
-client-secret="": the OAuth Client Secret
-cookie-domain="": an optional cookie domain to force cookies to
-cookie-secret="": the seed string for secure cookies
-google-apps-domain="": authenticate against the given google apps domain
-htpasswd-file="": additionally authenticate against a htpasswd file. Entries must be created with "htpasswd -s" for SHA encryption
-http-address="0.0.0.0:4180": <addr>:<port> to listen on for HTTP clients
-pass-basic-auth=true: pass HTTP Basic Auth information to upstream
-redirect-url="": the OAuth Redirect URL. ie: "https://internalapp.yourcompany.com/oauth2/callback"
-upstream=[]: the http url(s) of the upstream endpoint. If multiple, routing is based on path
-version=false: print version string
Unauthenticated requests will be redirected to /oauth2/sign_in
to start the sign-in process.
Example
To run google_auth_proxy as a reverse proxy on port 4180 authenticating requests for an application running on port 8080 at internal.yourcompany.com you would use
./google_auth_proxy \
--redirect-url="https://internal.yourcompany.com/oauth2/callback" \
--google-apps-domain="yourcompany.com" \
--upstream=http://127.0.0.1:8080/ \
--cookie-secret=... \
--client-id=... \
--client-secret=...
An example Nginx config to listen on ssl (port 443) and forward requests to port 4180 would be
server {
listen 443 default ssl;
server_name internal.yourcompany.com;
ssl_certificate /path/to/cert.pem;
ssl_certificate_key /path/to/cert.key;
add_header Strict-Transport-Security max-age=1209600;
location / {
proxy_pass http://127.0.0.1:4180;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Scheme $scheme;
proxy_connect_timeout 1;
proxy_send_timeout 30;
proxy_read_timeout 30;
}
}