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93 lines
3.9 KiB
Java
93 lines
3.9 KiB
Java
package org.gcube.smartgears.handlers.application.request;
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import static org.gcube.common.authorization.client.Constants.authorizationService;
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import static org.gcube.smartgears.Constants.scope_header;
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import static org.gcube.smartgears.Constants.token_header;
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import static org.gcube.smartgears.handlers.application.request.RequestError.internal_server_error;
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import static org.gcube.smartgears.handlers.application.request.RequestError.invalid_request_error;
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import javax.xml.bind.DatatypeConverter;
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import javax.xml.bind.annotation.XmlRootElement;
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import org.gcube.common.authorization.client.exceptions.ObjectNotFound;
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import org.gcube.common.authorization.library.AuthorizationEntry;
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import org.gcube.common.authorization.library.provider.AuthorizationProvider;
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import org.gcube.common.authorization.library.provider.SecurityTokenProvider;
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import org.gcube.common.authorization.library.utils.Caller;
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import org.gcube.common.scope.api.ScopeProvider;
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import org.gcube.smartgears.Constants;
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import org.gcube.smartgears.handlers.application.RequestEvent;
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import org.gcube.smartgears.handlers.application.RequestHandler;
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import org.gcube.smartgears.handlers.application.ResponseEvent;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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@XmlRootElement(name = Constants.request_context_retriever)
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public class RequestContextRetriever extends RequestHandler {
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private static Logger log = LoggerFactory.getLogger(RequestContextRetriever.class);
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private static final String BEARER_AUTH_PREFIX ="Bearer";
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private static final String BASIC_AUTH_PREFIX ="Basic";
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@Override
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public String getName() {
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return Constants.request_context_retriever;
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}
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@Override
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public void handleRequest(RequestEvent call) {
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String token = call.request().getParameter(token_header)==null? call.request().getHeader(token_header):call.request().getParameter(token_header);
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String scope = call.request().getParameter(scope_header)==null? call.request().getHeader(scope_header):call.request().getParameter(scope_header);
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if (token==null && call.request().getHeader(Constants.authorization_header)!=null){
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String authorization = call.request().getHeader(Constants.authorization_header);
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if (authorization.contains(BASIC_AUTH_PREFIX)) {
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String base64Credentials = authorization.substring(BASIC_AUTH_PREFIX.length()).trim();
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String credentials = new String(DatatypeConverter.parseBase64Binary(base64Credentials));
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// credentials = username:password
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final String[] values = credentials.split(":",2);
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token = values[1];
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} else if (authorization.contains(BEARER_AUTH_PREFIX))
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token = authorization.substring(BEARER_AUTH_PREFIX.length()).trim();
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}
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//Gives priority to the token
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if (token!=null)
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this.retreiveAndSetInfo(token, call);
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else if (scope!=null)
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ScopeProvider.instance.set(scope);
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}
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@Override
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public void handleResponse(ResponseEvent e) {
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SecurityTokenProvider.instance.reset();
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AuthorizationProvider.instance.reset();
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ScopeProvider.instance.reset();
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log.debug("resetting all the Thread local for this call.");
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}
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private void retreiveAndSetInfo(String token, RequestEvent call){
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log.info("retrieving context using token {} ", token);
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AuthorizationEntry authEntry = null;
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try{
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authEntry = authorizationService().get(token);
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}catch(ObjectNotFound onf){
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log.warn("rejecting call to {}, invalid token {}",call.context().name(),token);
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invalid_request_error.fire(call.context().name()+" invalid token : "+token);
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}catch(Exception e){
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log.error("error contacting authorization service",e);
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internal_server_error.fire("error contacting authorization service");
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}
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AuthorizationProvider.instance.set(new Caller(authEntry.getClientInfo(), authEntry.getQualifier()));
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SecurityTokenProvider.instance.set(token);
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ScopeProvider.instance.set(authEntry.getContext());
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log.info("retrieved request authorization info {} in scope {} ", AuthorizationProvider.instance.get(), authEntry.getContext());
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}
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}
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