Spring security oauth2 wrongly using internal URL as current URI for redirection - spring

Question

In the Spring definition of a remote resource that is protected via OAuth2 to which the client application wants access, I set use-current-uri to true, in other words, the current URI should be used as a redirect (if available). It looks like:
<oauth:resource id="myResourceId" type="authorization_code"
client-id="${clientId}" client-secret="${clientSecret}"
access-token-uri="${accessTokenUri}"
user-authorization-uri="${userAuthorizationUri}"
use-current-uri="true"
scope="myScope"
pre-established-redirect-uri="${preEstablishedRedirectUri}"/>
Now the problem is, the Spring Security OAuth2 client will pick up the current internal Tomcat URL instead of the public web application's URL. The scenario is Tomcat server sitting behind Apache server, which results in two sets of URLs:
The public web application's URL is http://example.com/users/login
The internal Tomcat URL is http://localhost:8080/myapplication/users/login
Because the redirection URL is for the authorization server (e.g., Twitter, ORCID) to use to send back the authorization code, the public web application's URL should be used, not the internal one.
By the way, I'm using the following version of spring-security-oauth2:
spring-security-oauth2-1.0.5.RELEASE
spring-core-3.1.2.RELEASE
spring-security-core-3.1.3.RELEASE
Wonder if there is a way to tell Spring to use the public URL. Thanks.

Answer 1

Inside your tomcat conf/server.xml's connector element , try setting your public URLs that front tomcat like this:
<Connector port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443"
proxyName="example.com"
proxyPort="443" (or whatever port you are using, same goes for scheme )
scheme="https" />
This way tomcat's internal getServerName and getServerPort methods will start giving the correct values which hopefully should create the correct URL.
You might also want to configure your webserver to route requests falling at
http://example.com/users/login to http://localhost:8080/myapplication/users/login if not already done.