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SamlIdentityProvider.java
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SamlIdentityProvider.java
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/*
* SonarQube
* Copyright (C) 2009-2024 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.auth.saml;
import java.util.regex.Pattern;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletRequestWrapper;
import org.sonar.api.server.ServerSide;
import org.sonar.api.server.authentication.Display;
import org.sonar.api.server.authentication.OAuth2IdentityProvider;
import org.sonar.api.server.authentication.UserIdentity;
import org.sonar.api.server.http.HttpRequest;
import org.sonar.server.http.JavaxHttpRequest;
@ServerSide
public class SamlIdentityProvider implements OAuth2IdentityProvider {
private static final Pattern HTTPS_PATTERN = Pattern.compile("https?://");
public static final String KEY = "saml";
public static final String RSA_SHA_256_URL = "http://www.w3.org/2001/04/xmldsig-more#rsa-sha256";
private final SamlSettings samlSettings;
private final SamlMessageIdChecker samlMessageIdChecker;
public SamlIdentityProvider(SamlSettings samlSettings, SamlMessageIdChecker samlMessageIdChecker) {
this.samlSettings = samlSettings;
this.samlMessageIdChecker = samlMessageIdChecker;
}
@Override
public String getKey() {
return KEY;
}
@Override
public String getName() {
return samlSettings.getProviderName();
}
@Override
public Display getDisplay() {
return Display.builder()
.setIconPath("/images/saml.png")
.setBackgroundColor("#444444")
.build();
}
@Override
public boolean isEnabled() {
return samlSettings.isEnabled();
}
@Override
public boolean allowsUsersToSignUp() {
return true;
}
@Override
public void init(InitContext context) {
SamlAuthenticator samlAuthenticator = new SamlAuthenticator(samlSettings, samlMessageIdChecker);
samlAuthenticator.initLogin(context.getCallbackUrl(), context.generateCsrfState(),
context.getHttpRequest(), context.getHttpResponse());
}
@Override
public void callback(CallbackContext context) {
//
// Workaround for onelogin/java-saml validation not taking into account running a reverse proxy configuration. This change
// makes the validation take into account 'X-Forwarded-Proto' and 'Host' headers set by the reverse proxy
// More details here:
// - https://github.com/onelogin/java-saml/issues/198
// - https://github.com/onelogin/java-saml/issues/95
//
HttpRequest processedRequest = useProxyHeadersInRequest(context.getHttpRequest());
SamlAuthenticator samlAuthenticator = new SamlAuthenticator(samlSettings, samlMessageIdChecker);
UserIdentity userIdentity = samlAuthenticator.buildUserIdentity(context, processedRequest);
context.authenticate(userIdentity);
context.redirectToRequestedPage();
}
private static HttpRequest useProxyHeadersInRequest(HttpRequest request) {
String forwardedScheme = request.getHeader("X-Forwarded-Proto");
if (forwardedScheme != null) {
HttpServletRequest httpServletRequest = new HttpServletRequestWrapper(((JavaxHttpRequest) request).getDelegate()) {
@Override
public String getScheme() {
return forwardedScheme;
}
@Override
public StringBuffer getRequestURL() {
StringBuffer originalURL = ((HttpServletRequest) getRequest()).getRequestURL();
return new StringBuffer(HTTPS_PATTERN.matcher(originalURL.toString()).replaceFirst(forwardedScheme + "://"));
}
};
return new JavaxHttpRequest(httpServletRequest);
}
return request;
}
}